federal university of rio de janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 v ~` f...

69

Upload: others

Post on 24-Jul-2020

6 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

��� � ����� ����� ������ � � � ���������� � �

� ������� � ��� � � � � � � � ! �����"� � �

# ���$"��� � � ������� �%� � � � &'�)("* �+ � �

, -/. 0

1�2436587:9;3=<4>@?BAC7D9;EGFB3IHKJL2;J=JM3N?@947PORQSUTJL3CF@3I9WVX 94>BYZ3MFB7[�\^]`_a\cb^_adfeKg�[�hi_kj@emlgn\cdfokg�_�pc_�q�gsr�tcuvjBwyxomzw�gJL3+{^7:HKJL2f9|JLA=7PO}9;3MF@7y~�YG7:9;26�3NOBE S JM7�FB7y�s3NACH@>@9|J�QSUTJL3

FKJC~�< S 3NYZJIF@7y~�OB�L7POB�KJU24E�JMFKJ=���R���H�3L2

� w�eKokg���dfw�����uvj@eKw���dio�u^pcg

Page 2: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

�������c~m�����i{���{c~ ��~m{c~m�����{����� �{c~ ������~��i��~��@������1������ V~`�����f���

{c~`1��^�������$~������{c~ ~��~�� � �����f����~ {c~ ���� 1m��� �^� Q T��

!#"%$ &(')"*')+�,.-0/132-345'768+:9-;&=<?>#'A@�'7BC'�>#'�"%$�'�+�D�4E@�'GF�" 68"GH�<('�+I,.'@J'7K�'�>L,M')>N@J'5ONFJ-;&=<?@J-;@J'G@�'5PQ'SR.TJ<U/1 4

�v>@9;3N2LV

� JL2 S 3={^E�JL< {^> 9;2;JXWsE S >BF@3^24EG7PO}9|JUFB3N2#V

1�243ZY\[�^989;3C� JL28YZ3N<��$>@OBE^]_W JLO@FB7PEG2;JI{^>KJL2f9;7�`B{^2#[a� OB�3[~�b@JLA=EZOKJLF@3N247:<#V

�=V7:YZEG3c�^EZO@E S EG>B<��v7edN7:<vFB7��vYZ?B>3f >B7:2gf >B7Z`�1��Q[ {c[

k>kVX <�h 7POB28E^f >B7i� J S EZ7PYQj�3L<4ACJLYZ<lk Ek�s3N<89;Jm` {^2#[

� JL2 S 7PYG3onc3NORQS JLYpdL7P< � >B?BEZO@<89;7:EZOQ`B{c[q� S [

� JL2 S 7PYG3N�>@E^]�{^24>@AC3NO@Fr�JLOm]WJm`��*[s� S [

{c~�� JL2 QS 3=FB7ut�vwv�x

Page 3: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

� � ( �%� � � ��� ���"� �

�� A=EZO@�KJCY JUA VX YZE�J)`kHB24EGO S EGHKJLYZA=7PO}947=A=7P>@< HKJLEG<yH 3N2y943 F@3 3�JLA=3N2L`R3N28EZ7PO}9;J�QSLTJL3$7 JLH 3NEZ3$JL3YG3NOB�N3�FKJ^ACEGOB�KJ�d EGFKJm[�� 7P<4A=3cFBEG<89|JUO 947��K<4E S JLA=7PO}947 7PA�JLYZ�N>@OB<�A=3NAC7:O}9;3N<L`N<47:ACHB287 7P<f9;EpdL7P24JLAH@247P<87PO}9;7:<�7 JU94>KJLO}9;7:<#[

��943 FBJ+J+7Lf >@EZH 7 FB3Cn����i` 7PA HKJL2894E S >BY�JL2 JL3CHB243ZY 7P<4<83N2��949433` AC7:>�3N24EG7PO}9|JUFB3N2#` H 7PY�J=3N24E��7:O}9|J�QSUTJL3 7 S 3NO@<47PYG�B3N<L[ ��3 HB243ZY 7P<4<83N2u�>@EZ<_hv7:OB24Epf >@7�`RH 7PYZJ$JUACEp]WJLFB7Z`�H�7:Y�JL<�247ed EZ< T3L7P< FB7=947eb 9;37 F@E S JU<#[5��3 {^3 S `m1�7:FB2433``78Ws7:24OKJU24FB3 H 7PY�J�? 3}JAdL3NO}9|JLFB7 7:A 7PA=HB287P<89;JL2M<47:>B<=1`�s<#``7 H�7:Y�JHBJ S E �7PO S E�J OKJU< <47:A+JLOBJL<s7:A f >B7�94EZOB�KJuf >@7^247 S 3NA=HBEZYZJL2m3���� ����� ` 94EZ2;JU2sJL<sAC7:FBEZFKJU<#` 7^247:EZOBE S E�JU23 S 3LACHB> 9|JLFB3L2c>BA+JU< F@7#]P7:OKJL<yFB7:dN7#]:7P<L[8��3N<�HB283�Y 7P<8<43N287P< F@3 {^7:HKJL289;JLA=7PO}9;3 FB7C~�YZ7:942 �3NO@E S J)`H@24EZO S EZHBJLYZA=7PO}9;7�JL3N< HB283�Y 7P<8<43N287P<��JLO3]WJ)`KJLA=EZ�N3 H@247P<87PO}9;7 FB7^943 FKJ <87eb 9|J:Y 7PEG2;Jm`@� 7L]P7:OBFB7�`I� JU2��S 7PYG3+� JUACH 3N<#`K�L3}JL247L]�7uWsJL2�V>3f >BE?[

�v3N<yH@243�Y 7:<4<43L247P<c�949;3m` k> VX <_hv7PO@24E^f >B7Z`R� >B?BE?`�aJUO3]WJ 7C�CV7PYZEG3 H�3N2 J S 7PE 9|JL287PA Y J�]:7P2�HKJL2f9;7FBJ=?KJUO S Jm[

Page 4: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

� 7P<8>BA=3 FB3 1m283 587:943 �REZOBJLY JUHB247:<47PO}9;JLFB3 JL3 {c~���U�����v� S 3NA=3 HKJL2f9;7 FB3L<�247Lf >@EZ<4E 9;3N<�O@7��S 7P<8<KVJL28EZ3N< HKJL24JCJM3N? 9;7PO�QSLTJL3=FB3I�N2;JU> F@7y~�OB�L7POB�B7:EZ283+~�YZ7D9;26�3NOBE S 3I7 F@7 �s3LACHB> 9|J�QSUTJL33[

��� ����� �� ����������� � ������������ � !"� #������ �$���%"� !"� &����� '���� ��� !"� ()���� ��*!"� +,&"�-����!"��!"� !"� ./�0�12�3�� �

4 -3R 1 4 BC<=-;>XBCF�,.R -�5:< 1 F�@�4� JL2 QS 3=FB7ut�vwv�x

^28EZ7PO}9;JLFB3N2LV �989;3C� JL24YG3N<��$>BO@E^]_W JLOBF@7PEZ24JI{^>KJL28947{^7:HKJL2f9|JLA=7PO}9;3mV'~�OB�L7POB�KJU24E�JI~�YZ7D9;26�3NOBE S JM7cFB7y�s3NACH@>@9|J�QSUTJL3

HB243L943 S 3NYZ3i�i17698 �;: �� ���<: = ?>@:A>CBD> �FEU`BFB7:<47PO dL3NYpd EZF@3=HBJL2;JMJLH@YZE S J�QSLT3L7P<s943NYZ7:2;JLO}9;7:< JL3IJU942;JL<833`<4JU9;EG<lY 7L]�``OKJ�V7PH 3 S J 7:A f >B78Y 3NE EGFB7WJUYZE^]PJLFB33`R3N<M247Lf >@EZ<4E 9;3N<MF@7$JUHBYZE S J�QSUT3N7P< 3LOBFB7 J�7PO}9;287P�}J FB3HBJ S 3L947y<87P�N>@EZOBFB3=3IAC3 FB7:YZ3IFB3=AC7:YZ�B3N2s7P<lY 3L2UQS 3C7P24J=<8> � S EG7PO}9;7Z[ 1a3N2 V7:Ar` JMH�3LHB>BY�JU24E^]PJ�QSLTJU3 S JLFKJdL7#]yA+JLEG3N2 FB7yJLHBYGE S J�QSLT3N7:< A >BYG94EZA$VX FBEZJL<#` <47:OB<PVX dN7:EZ<^JI7P<8<47:<�HKJL26�JLA=7:9;283N<#` 287#f >B7P2vJCF@EpY 7P287PO S E�J�QSUTJL3F@7 <87P2 d EfQS 3N< HKJU2;J �}JL2;JUO 94EZ2 J)G^>KJLYGEZFKJUFB7�FB7*� 7:2ld E8QS 3H6IG^3S�JEe[ �s3LAC3 3 HB283L9;3 S 3NYG3 �i1%O TJL3 V7S JLHKJ�] FB7�Y 3N24O@7 S 7:2n�NJL2;JLO}94E�JcFB7KGc3 �I`}3N>@94243N<`HB243U9;3 S 3NYG3N<�7�JU2gf >BEG947:94>B2;JL<�Y 3N24JLA�HB283NH 3N<89;JL<nHBJL2;J7:<89;J 9;JL247eY Jm[M�s3NA=3 H 3N2c7eb 7PA=HBYG3 JL<�JL2gf >BE 9;7D9;>B24JL<cFB7 � 7P2 d E8QS 3L<�{^EpY 7P287PO S E�JLF@3N<L6NMO PRQ ��<S<EU` FB7� 7P2ld EfQS 3N<�� O}9;7:�N2;JLF@3N<�6I8��;:TQ ��US<En7�3CHB283L9;3 S 3LYZ3X� 1���$6WV"X �Y:ZO\[ D>@:N>CBD> �3]_^a`����3QcbdOe:NBDfgO �ghCEe[

� 7P<4<87�9;2;JU?KJLYZ�@3)V7 EGACH@YZ7PA=7PO}9;JLFB3�>@A JUA ?BEZ7:O}9;7 F@7 9;7:<89;7:< S 3NA 3 3N? 587:9;E dN3 FB7�JLOKJLYGEZ<;JU23�F@7P<47:ACH 7PO@�B3 FB7 >BACJ 247:FB7 S 3LA'<8>BH�3L289;7 J�FBEpY 7:247PO S E�J QSLTJL3�F@7 <47:2ld E8QS 3N<IJU9;24JMdmV7:<MFB35� 1���I`7:O S JUACEGOB�KJLOBF@3LiB>)b 3N<vH@24EZ3L24EG9KVJL24EG3N<sHBJL2;JI247 S >B28<43N< 247:<47P2 dUJLFB3N< FKJI247PF@7�[� � 1��� 9|JUA ?nV7PA Y 3NE> 9;EZYGE^]PJLFB3 HKJL2;J$247WJUYZE^]PJL2 7POB�N7:OB�KJL28E�J F@7 9;2KVJ Y 7P�N3 9;3N28OKJLOBFB3�ACJLEG<y7�� S EG7PO}9;7 3�>@<43�FKJ 287PFB7Z[*F@7P<47:ACH 7PO@�B3 FKJ+247:FB7iY 3NE�AC3LOBEG943N2;JLF@3 S 3NA 3L<^HB243U9;3 S 3NYG3N<vF@7 243L947WJLA=7PO}943 ���i1 7X��@1m� S 3NAJyA V7D9;24E S J ?KJLOBFKJyHKJL<4<4JLO}9;7cHKJU2;J S 3NACHBJL2;J�QSUTJL3 F@3 FB7P<87PA=H�7:OB�B3MFKJy247PF@7 S 3NA � 1���I[m�v<4<8EZA ``V7H 3N<8<WVX dL7PY�FB7D9;7P28ACEGOKJL2 3I�}JUOB�B3=OKJM7 � S EZ7PO S E�J S 3NA�JI>@9;EGYZE^]PJ�QSLTJU3 FB3 � 1���I[

Page 5: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

� ���R��* ( �%� � � � *�

�$1���� O}947P24O@7:9~�OB�L7POB�KJU24E�JMFB7��a2KVJZY 7:�N3G^>KJUYZEZFBJLFB7^FB7u� 7:2ld E8QS 3

� ^gB � `<> ���

Page 6: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

� ���$�� � � � � (���� ��� � �

� ��j:V �KB � �3>@b � ���Ch �������V ���<X ����� > Ub ^ � O �gh�����v1��iV ��� S@^ �3B ����� �� � ^ ?BDf = ?>�� �DB<:���� h ���3B���������*V ���� �3BDf D> �3>@X���� ^ ����� ��KV >�� ���W��uV � �Df ^ SCO9> �� hCh �9ha^ : ���W ~�V � ��<: � P > U:!���W ��V " > ���<:9^ �;: � Oe: �R^ : ���� ���\�{c1�V " > ���<: ^ O �;:#� >@Xg:ZO �gh%$ ] MK=&�{��IV MO PRQ ��<S'�{��B� 1�V MO PRQ ��<S%" >�� � = >@O �;:(�~m��V �*)[ ��� Oe: ����� > <b ^ � O �gh��~#+c1�V �*)[ ��UO-,����;:9^ �.��a� ���IV �dO �<:!$ BD>�,���dO ��$/� ��US �������~`��V � > Ub ^ � O �gh0�21�XgOeS@^ � ���3B ��" � ^����������_V �*�3" :A>54 � ) :76 >D[�]_^a`����8��> Ub ^ � O �gh9� �;: :� V�^<[;�h���� 1�V 6�D[ ��<� � ) :=� ^ ����� ��K= D>@:N>CBD> �.��i~�� ��V 8 �;: �� ���<:#� �gh O ��� ��UO �gh>�c^�� �?��> ?B ����\��*V 8 �3BD>�,�O �gh�]_^a`���� V�^<[;��i1�V 8 �;: �� ���<:�= ?>@:A>CBD> �.�� �3cV 8 �;: �� � ^ :ZO9> � ^ �#@�Iha^ �;OBAC^ :ZO9> �9��> Qc:W^ �;�a^ � OBAC^ :ZO9> �C���� � ����V 8 �;: �� � ^ :ZO9> � ^ �D� ��� �DBD>�,5,�X �;O9B ^ :ZO9> �FE �;O9> �G$0� ��� �DBD>�,5,�X �;O9B ^ :ZO9> �C�

Qc:9^ �;�a^ � OBAC^ :IO9> �2Q �DB<:IO9> �C�

Page 7: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

�{c1�V ]_^a`���� M O �<: <OZ`�Xg:ZO9> � = ?>@:N>CBD> �.���@1�V ]_^a`����3QcbdOe:ABDf ����=R^ :ef ���@��V ]_^a`����3QcbdOe:ABDfgO �gh5� >@Xg: ����� ��V V"X �Y:ZO-$/� O ���B���� 1���IV V"X �Y:ZO\[ D>@:N>CBD> �3]_^a`����3QcbdOe:NBDfgO �gh����h����~�V 4 � ) : 6 >D[�] ^a`����;��> Ub ^ � O �gh5� �;: ������@1m��V @�[ ��� QJf;> U: ��<:d= ^ :Tf��dO �<:!�1�h�W�V = ��=6 >D[ � �Df ^ SCO9> :�G^3S�IV � XJ^ �YOe:!�/>��Q ��<SCO9B ������i1�V � >@X :ZO �gh�8�� ��> :, ^ :ZO9> �2= ?>@:A>CBD> �.������c1�V � ��C>@X ?B �3� �� ��US@^ :IO9> �2= ?>@:N>CBD> �.������c1 ��� ~�V � Q��_= $0� ^�� B3� �gh O ��� ��UO �gh��� � 1�V � ^ ����� ��5" > �;: ?> �3= ?>@:N>CBD> �.�����IV � �D[ ��>'�Q ��USCO9B ��������V ��O-,���$ � >�$9]�OeS ����v{c1�V E � �� M�^ :9^Ch ^�, = ?>@:A>CBD> �.���W �_V �;^ UOZ^a` � � � Oe:!$/�R^ : ���� � GcV � �<O h@fg: ����� ^ O � X �<X ���

TJ<

Page 8: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

& � ���(����

�o')>#F "%4 <=<?<

! !L+I,.R 4�@�F�/1m2-m4 �

� [�� �$3U9;EpdUJ�QSUTJL3 [_[u[_[_[u[�[_[u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ �

� [st � h EZ<89KV3N24EZJ 7 JX�v2gf >BE 9;7:94>B2;JIFKJ:� O}9;7:24OB7D9 [�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ t

� [�� �v<��vHBYZE S J�QSUT3N7P<�� >BYG94EZA$VX FBEZJL< [u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ x

!.! ONFJ-;&=<?@J-;@J'G@J'*PQ'SR.TJ<U/1 4 �

�l� [�� � EGOKJLYGE^]WJ QSLTJL3:[_[u[_[_[u[�[_[u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ �

�l� [qt �s3NO}94243NYG7cFB7���FBA=EZ<8< TJL3 [u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[

�l� [� �s3NO@FBE S EZ3NOKJUAC7:O 943MFB7���2BVJZY 7P�L3 [_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[��.v

�l� [ x �v2gf >BEG947:94>B2;JL<�� O}9U� 7P2ld 7 {^E���� 7:2ld [u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[�� t

�l� [� � 1��� [_[u[_[u[_[_[u[�[_[u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[����

!.!.!�������������� �!�"�$#%�&�('*),+%-.�(/�01�2�3# 4,�65�798 4;:=<�P �?>

�l�g� [��N��EZ< TJU3onc7P24JLY [u[_[_[u[�[_[u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[���@

�l�g� [str)� V3L94>BYZ3i[u[_[u[_[_[u[�[_[u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ t�v

Page 9: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

P�� 4 96 � !��

�l�g� [��$����� 7��\�� [u[_[_[u[�[_[u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ t �

�l�g� [ax7){^3NA$VX OBEZ3c� 1���%[u[�[_[u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ twt

�l�g� [ "]_^a`����3QcbdOe:NBDf ���L= ^ :Tf ����@1 [u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ t �

�l�g� [�� �vHBYZE S J�QSUTJL3MFB3 � 1��� [�[_[u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ t

!�� 6 !#"*$�&('�"%'�+I,.-0/132-34%@�4%68"GH�<('�+I,.'r@�'GK�')>e,.'�> �&>

���i[�� � >@H�3N2f9;7u� 1��� 7:A kEZO >)b [_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ t

���i[��w[�� = ^ :ABDf FB3 ��� �����_[u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ �$�

���i[��w[st �K7P2424JLA=7PO}9|JMFB7 JLFBA=EZO@EZ<8942;J�QSUTJL3���� �������� [_[u[_[_[u[_[�[u[_[u[_[_[u[_[ ��x

���i[��w[�� ��< �K7P282;JLA=7PO}9|JU<���I`����M7������������� [_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ � �

���i[qtA�v<v�K7:242;JUAC7:O 9;JL< FB7u�$7:FBE8QSUTJL3 [_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ �.�

���i[qt)[��!�����"$# [_[_[u[�[_[u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ �.�

���i[�7� �a3NH 3NYZ3N�LE�J [u[_[_[u[�[_[u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ �

���i[�m[�� � S 3NO �B�N>B2;J QSLTJL3IY V3L�NE S J [_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ �

� � '�>MF�& ,.-;@J4I>%�XHJ, <=@�4�>:'768+:9-;&=<?>#'A@�'AB8')>L')"*$�')+�DJ4 &('

�i[�� ^<���7:<8947P< FB7 {^7P<47:ACH 7PO@�B3 [u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ x.�

�i[qt � JLHBJ S EGFKJLFB7��v�N247:�}JLFKJIFB3=� 3U9;7WJUFB3N2 [u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ xwx

�i[� ^<���7:<8947P< FB7�Gc>BJLYZEGFKJLFB7^F@7i� 7P2ld EfQS 3 [u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ x.�

�i[ x ^<���7:<8947P< FKJ+� JUHKJ S EGFKJLFB7��v�N247:�}JLFKJIFKJI� 7PFB7 [_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ x.

�C!*)u4�+ 1 &=F�> 2-34 +�'

�o', '�R�-'�+ 1 <=-;>L5:<(H�&=<(4/. R�9-�0 1 -;> +&�

TJ<=<?<

Page 10: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

� ���$�� � � � � � ( �%�

�l� [�� � 7P<87P2ldUJIFB7 � 7 S >B28<43N< S 3LA����S�c1 [ [u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ @

�l� [qt {^7:OB<4EGFKJLFB7cFKJ:dUJL24EZJ�QSLTJU3MFB3+J 9;2;JU<433[ [_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[�� �

�l� [� {^3NA$VX O@EZ3 {^E���� 7P2ld�[�[u[�[_[u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[��Mx

�l� [ x �REGY�JL<s~m��7_W ~�[ [_[u[�[_[u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[��

�l�g� [��+�$V3L9;>@YZ3N� 1���I[�[_[_[u[�[_[u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ t�v

�l�g� [st {^3NA$VX O@EZ3:�$1��� 7_ � 1m<L[ [_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ twt

�l�g� [��${^3NA$VX O@EZ3:�$1��� 7 ~mO@�N7POB�BJL24EZJ=FB7��a2KVJZY 7:�N33[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ tZx

�l�g� [ax ~�OB�N7:OB�KJL28E�JMFB7��a2KVJZY 7:�N33[�[u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ t

�l�g� [ ~�O S JLACEGOB�KJLA=7PO}943MFB3CHBJ S 3L947u� 1� ��[7[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ t �

���i[�� �K>BO S EZ3NOBJLAC7:O}9;3MFB3 ��� ����� [ [u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ � t

���i[qtA�vA ?BEZ7:O}9;7cFB7_��7:<8947�[7[�[_[u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ x v

Page 11: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

� ���$�� � � # �%! ���R�%�

�l� [�� � 7#f >BEG<4EG943N< FKJL< JLH@YZE S J�QSLT3L7P< JL3N< 1�JL2 �JUAC7D9;243L< F@7-G^3S��[E[u[_[_[u[_[�[u[_[u[_[_[u[_[ �

���i[�� ~�OBFB7:247 QS JLA=7PO}9;3 �i1 [ [�[_[u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ x �

�i[�� ~�<4H 7 S E � S J�QSLTJU3 �+V7 S OBE S JIFB3N< � 3U9;7WJUFB3N247:<#[ [�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ x

�i[qt � JLHBJ S EGFKJLFB7��v�N247:�}JLFKJIFB3N< � 3L9;7PJLFB3N287P<#[ [�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ x.�

�i[� � J 9;24Ep]cFB7 {^7PACJLOBFKJ F@7u�a2KVJZY 7:�N33[r[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ x �

�i[ x �gOe:Z: ��U[ [_[u[_[u[_[_[u[�[_[u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ x.@

�i[� � J 9;24Ep]cFB7���2BVJZY 7P�L3C���i1 [�[u[_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ �v

�i[� � J 9;24Ep]cFB7���2BVJZY 7P�L3o��@1m��[ [_[u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ �

�i[�� � J 9;24Ep]cFB7���2BVJZY 7P�L3o�$1���I[ [u[_[_[u[_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ �

�i[@ � 3LA+J FKJU< S JLHKJ S EZFKJUFB7P< JL�N287P�}JUFKJL<#[ [_[u[_[�[u[_[_[u[_[u[_[_[u[_[�[u[_[u[_[_[u[_[ wt

Page 12: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

� �%� �� ��� �

����( � � ������

����� � �����1 �$�����-�

�v<�247:FB7P<vFB7 S 3NA=HB>@9;JLFB3N287P<�Y 3N2;JLA�F@7P<47:O dN3NY d EGFKJL<v7yEGFB7WJLYGE^]PJLFKJL< HKJU2;JIEZO}9;7:2 S 3LOB7 S 9|JL2 S 3NA �H@>@9|JLF@3N247:<v7:A F@EpY 7P287PO}9;7:<vYG3 S JLEZ<L` S 3LA�3+3N? 587D9;E dN3=FB7 S 3NA=HKJL2894EZYG�KJL2 FKJUFB3N< FB7y<87P2 d EGFB3N287P<�HBJL2;JA VJ�f >BEGOKJL< S YZEG7PO}9;7:<#[v{^7Ld EZF@3 JL3CFB7P<87PO dN3NY d EZA=7PO}9;3 F@7 OB3.dUJL<^JLH@YZE S J�QSLT3L7P< S 3NA FBE Y 7P287PO}9;7:<^247Lf >@E �<8EG943N<#`B<8>B24�LEZ2;JUA%OB3.dUJL< 7eb EZ�B�7:O S EZJL<#[

�v<sOB3.dUJL< JUHBYZE S J�QSUT3N7P<�f >B7^OB7 S 7:<4<4E 9|JLA FB7v247 S >B28<43N< FBJy247:FB7�< TJL3 S JLFKJ�dN7#]�A+JLEG< S 3NA >@OB<#` 7^JH 3NHB>@Y�JL28E^]WJ QSLTJL3cFKJ�� O}9;7:24OB7D9 S 247:< S 7�J S JLFKJ�FBEZJm[��a2;JLO@<4A=EZ<4< TJL3�FB7���� OKJ_� O}947P24O@7:9M` S 3LOmY 7P2P�7PO S E�JL<7�583N�L3N< > �C$ �YO ���v< TJL3 7eb 7:ACHBYG3N<�FB7=JLHBYGE S J QSLT3N7:<�f >B7CO@7 S 7:<4<8EG9|JUA FB7I247Lf >@EZ<4E 9;3N<c7:<4H 7 S VX � S 3N<yHBJL2;J>@A ?�3LA FB7P<87PA=H�7:OB�B33[s~�A�>BA Y >@94>B243=HB2KV3 b@EGAC3m`@3=>B<43=FB7P<8<;JL<�JLHBYGE S J QSLT3N7:< A >BYG94EZA$VX FBEZJL<`H�3 FB7<87P2cACJLEZ<�Y 247#f��>B7:O 947M7cY J�]P7:2^HKJL2f9;7MFB3 FBEZJ �iJ � FBEZJm[c1RJU2;J EZ<8<43 <47:2cH�3L<4<PVX dN7:Y `�V7MOB7 S 7P<8<KVJL28EZ3Cf >B7IJL<947 S OB3NYZ3L�NE�JL<�f >B7IEZO}9;7:2 S 3LOB7 S 9|JLAJL<cFBEpY 7:247:O 947P<�247:FB7P<�<87i54JLA S JLHKJZ]P7P<�FB7MF@EpY 7P287PO S E�JL2 iK>)b 3N<�FB7FBJLFB3N<�ACJLEG<aH@24EZ3L24EG9KVJL24EG3N<kFB3N<RAC7:OB3N<RH@24EZ3L24EG9KVJL24EG3N<#[��vYDV7:A)F@EZ<4<833`L7:<4<4JL<�9;7 S OB3NYG3N�NEZJL<�F@7LdN7:A�O TJU3�<KV3F@EpY 7P287PO S E�JL2L` ACJL<m9|JLA ?sV7PA 9;24JU9|JU2n3N< iK>)b 3N< S 3NOmY 3N28AC7�Y 3N2`7P<8H�7 S E � S JLFB3MO@3 S 3LO 942;JU943 FB7v<47P2 d E8QS 3F@3 S YZEG7PO}9;7Z`}A+JLO}947POBFB3�3iK>)b 3 S 3NA�3N<0dUJLYZ3N287P<�FB7D9;7:24A=EZOKJLF@3N<�FB7 JU942;JL<833` ?KJLOBFKJcHKJU<4<;JUO 947�` 9|J b@JF@7 7P282433` 7uf >BJLY^f >B7:2�3N>@94243=HKJL26�JLAC7D9;283of >B7 <87 S 3NOB<4EGFB7P287 EGACH 3N289;JLO}9;7cHKJU2;JC>@A+J=FB7:947P24A=EZOBJLFKJJUHBYZE S J�QSUTJL33[

Page 13: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!�� �*6��A<=>L,�94 R <=-G'r-%6 R��QF�< ,.' , F�R - @J-*!L+I,.'SR +J'S,

�s3NA 7:<4<87+3N? 587D9;E dN33`�Y 3N24JLA HB283NH�3L<89|JU< F@EpY 7P287PO}9;7:< JU2gf >BEG947:94>B2;JL<�FB7 G^>KJLYGEZFKJUFB7MFB7 � 7P2 d E8QS 36IG^3S�JE�f >B7 947PO}9|JUA�3�Y 7P287 S 7:2�JUYZ�N>BACJM�}JL24JLO}9;E�J F@7yFB7:<47:ACH 7POB�@3 �JL<vJLHBYGE S J QSLT3N7:<#`K7�7PA S 3NO 58>BO}9;39;JLA ?nV7:A Y 3N24JLA FB7P<87PO dN3NY d EZFKJL<c9 V7 S O@E S JU<cFB7I7POB�N7:OB�KJL28E�J FB7 942KVJZY 7:�N33`Qf >B7M947PO}9|JLA FBEZ<f9;28EZ?B>BEG2�3942KVJZY 7:�N3IOKJM247:FB7yF@7�Y 3L24ACJMJIA=7PYG�B3N24JL2 JM>@9;EGYZEp]WJ�QSUTJL3 FB3N< 287 S >@24<43L<vFBEG<4H 3NOkVX dN7PEG<#[

����� � � ����� �� 0 ��� � � � 0�/&��� �K�d&�0d� !"� ��� � �0 �"�K�

)JLHKJL287 S EGAC7:O}9;3IFKJ:� O}9;7P28OB7:9 <87 F@7LdN7�?KJU<4E S JLA=7PO}9;7�JMFB>KJU< O@7 S 7:<4<8EZFKJLF@7P<�f >@7�94EZOB�BJLA f >B7<87P2cJ 9;7PO@FBEZFKJU<#V J+OB7 S 7:<4<4EGFKJLFB7MF@7 S 3LACHKJU289;EGYZ�KJU2 247 S >B24<83N<c7PO}94247 S 3NACH@>@9|JLF@3N247:<�FBEG<89|JUO 947P<L` 7 JO@7 S 7:<4<8EZFKJLF@7CFB3 �L3 dL7P28OB3 JUAC7:24E S JLOB3 7:A9;7:2c>BACJ 247PF@7:f >@7XY 3L<4<47I283N?B>B<f9|J Y 247:O 947IJ FB7P<4JL<894247P<OBJU9;>B24JLEZ<L` �N>B7:2424JL<C7 S JU9;J S YGEZ<8A+JL<L[ �EGO}9;7P2 S 3NO@7eb TJL3�F@7 247:FB7P<+<47PA JLF@ACEGOBEZ<f9;2;J QSLTJL3 S 7:O}9;2;JUY V7283N?B>B<f9|J �J F@7P<89424>BEfQSLTJL3MF@7cJLYZ�L>BA+JU<nFB7�<4>KJL<sHKJL28947P<L`BH�3L2sEZ<8<43MJc���v1���OB7D9M`B287PFB7�f >@7^3N24EG�NEZO@3N> J� O}947P24O@7:9M`K947LdN7 <47:> HB283 587:943I?KJL<47PJLFB3=OKJIEZFnV7:E�J FB7�FB7:< S 7:O}9;2;JUYZE^]PJ�QSLTJU33[

� �^� 1I�vOB7:9#`�Y 3NE�J 247:FB7IFB7P<87PO dN3NY d EZFKJ H�7:YZ3 V3N28� TJL3 JLA=7P24E S JLO@3 FB3 {^7PHKJL2f9|JLA=7PO}943 FB7={^7��Y 7:<;Jm`m���B�7:O S EZJIF@7�1m283 587:943N< 7�1�7:<gf >BEZ<4JL<���dUJLORQS JLFKJL<������v1��i`3f >B7c94EZOB�KJy3=3L? 587:94EpdN3IEGOBE S E�JLY FB7S 3NA=HKJL2894EZYG�KJL2�3N<�JLY 9;3N< S >B<f9;3N<�FBJL<�YZEGOB�KJL<�9;7:YZ7eY;�3NOBE S JL<RF@7 YZ3NO@�}J�FBEG<89U�JUO S EZJm[R1�JL2;J 9;3N28OKJL2�H 3N<4<PVX dL7PY7:<4<87 S 3NA=HKJL2f9;EZYG�KJLA=7PO}9;3m`�>@94EZYGE^]P3L> � <87CJ S 3NA > 9|J�QSUTJL3�FB7 HBJ S 3L947P< F@7P<47:O dN3NY d EGFKJ�H 3N2cW JU2;JLO 7:A� �$�w` 7�f >B7 � S 3N>C7P<lf >@7 S EGFKJ H 3N2sJUYZ�N>BO@<sJLO@3N<#[�� �^� 1I�vOB7:9�Y 3NE HBEZ3NO@7PEZ24J O@3 FB7P<87PO dN3LYpd EZA=7PO}9;3F@7CJUYZ�N>BO@<^FB3N<�HKJLF@2 T3N7:< 7 9 V7 S OBE S JL<�FB7M9;7PYG7 S 3NA >BOBE S J�QSUT3N7P<L` S 3NA=3 3 S 3NO}9;283NYZ7 FB7�iK>)b 33`�3 243L947��JUAC7:O 943�FB7P< S 7:O 942;JLYGE^]PJLFB33` S 3NA >@9|J�QSUTJL3�FB7 HKJ S 3L947P<I7PA'247PF@7P<IFB7 YZ3NO@�}J FBEG<89U�JUO S EZJm`� � � [�~m<8<;JL<947 S OB3NYZ3L�NE�JL<L`k7PA S 3NO 58>BO}9;3 S 3NA JLYZ�N>@A+JL<�JUHBYZE S J�QSUT3N7P<cFKJ V7PH 3 S J S 3NA=3 3 ����������� 7I3 " ���������I`<87P2 d EG2;JLA%FB7�?KJL<47�HKJU2;J=J S 3NOB<f9;24>�QSLTJL3=FKJX� O 947P28OB7:9#` 7�< TJL3I>@9;EGYZE^]PJLFB3N< JU9 V7c�B36587�[

� EZFnV7PE�J F@7 S 3NA=HKJL2894EZYG�KJL2�3L< S >B<8943N<�FB7IYZEGOB�KJL<^947PYZ7eY;�3NOBE S JL<^F@7=YG3NOB�}J F@EZ<89 �JLO S E�J 7=J S JL2;J S �947P2PVX <894E S J+FB3 9;2BVJZY 7P�L3 FB7 FKJUFB3N<c7PA 2;J 54JLFKJL<^YG7LdL3N> JL3 >B<83 FKJ S 3NA >@9|J�QSUTJL3 FB7 HKJ S 3U9;7P<L[ �s3LAJS 3NA >@9;J�QSLTJU3�FB7 HKJ S 3L947P<"V7 H 3N<8<WVX dL7PYn<47oY J�]:7P2 J�>@9;EGYZE^]PJ�QSLTJU3 F@7 247 S >B28<43N<M<83N? FB7PACJLOBFBJm[A�v<4<4EGAH 3 FB7��KJMdN7P2 S 3LACHKJU289;EGYZ�KJUAC7:O 943 FB7 247 S >B28<43N< 7PO}9;287 iB>)b 3N<#[n1�3N2 3N>@94243IY�JUFB33`BOKJ S 3LA >@9|J QSLTJL3IFB7S EZ2 S >BE 9;3+3L> 7PA >BACJCYGEZOB�BJ=FB7:FBE S JLFKJm` 9;3 FB3+3C247 S >B28<43 V7 F@7PFBE S JLFB3CHKJL24J J�f >B7PYG7�iK>�b@3m`�A=7P<8AC3f >B7=7P<f9;7=O TJL3 3 >@9;EGYZEp]P7�[i��3 FKJ J EGOmY 3N28A+J�QSUTJL38f >B7=J � O}947P24O@7:9 9;2;JUOB<4H 3N289;J V7CJ 9;2;JMd�V7P< FB7IHKJ S 3 �

Page 14: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!�� �*6��A<=>L,�94 R <=-G'r-%6 R��QF�< ,.' , F�R - @J-*!L+I,.'SR +J'S,

947P<L[E^<MHKJ S 3L9;7:<M< TJL37Y 3L24ACJLFB3N< ?BJL<4E S JLA=7PO}9;7+FB7 FB>KJL<MHBJL28947P<#VC3 S JL? 7 QS JLYZ�@33`�f >B7 S 3NO}9 V7PA JEGOmY 3N28A+J�QSUTJL3 FB7 S 3NO}94243NYG7MOB7 S 7P<4<BVJL24EZJ$HKJU2;J 3$7:O S JLA=EZO@�KJLA=7PO}9;3 FB3N<�HKJ S 3L947P<#`�7I3N<yFBJLFB3N<L` f >B7< TJL3�JL<�EGOmY 3N28A+J�QSUT3N7P<RJ�<47:247:A�9;24JLOB<lY 7:24EGFKJL<#[��s3NA=3 S 3NO@<47#f��> �7:O S EZJ�FBJ�>@9;EGYZEp]WJ�QSUTJL3�FB7sHKJ S 3U9;7P<�HBJL2;J942;JLO@<4A=EZ<4< TJL3 FB7nFBJLFB3N<L`L3�Y >@O S EG3NOKJLA=7PO}9;3 FKJ�� O}9;7P28OB7:9R<47:�N>B7s3vAC3 FB7:YZ3 FB7PO@3NACEGOKJLFB3 JL28A+JZ]P7PO@7��7 � 7:O S JLA=EZO@�B7 6 �<:N> ��$ ^ �;��$ ��> <b ^ �CEU` 3N> <87i54Jm`K3IHKJ S 3L9;7�V7c287 S 7:?BEZF@3=H 7PYG3M243L947WJLF@3N2#`KJU24ACJ�]P7:OKJLFB37:A >BA `�X<P ��U`B7�f >KJLOBF@3 S �@7P�}JL2 <8>KJcdN7#] FB7c<87P2 9;24JLOB<4A=EG94EZFB3"V7c247:94EZ24JLFB3MFB3 `�XUP ��s7c7PO d E�JUFB33[~�b EZ<f9;7:A dUJLO}9|JL�L7POB<M7 FB7:<ldUJLO}9|JU�N7POB<IOB7:<4<87 AC3 FB7PYG3�FB7 7:O S JUACEGOB�KJLA=7PO}9;3m[5� dLJUO 9;JL�N7:A V7 3S 3NA=HKJL2894EZYG�KJLA=7PO}9;3IFB3N<v247 S >B28<43N<^FBJ+247:FB7�`If >@7 H�3 FB7:A <87P2v>@9;EGYZE^]PJLFB3N< FB7yA+JUOB7PEG2;JIA+JLEG< 7 � S E �7:O}9;7�` JMFB7:<ldUJLO}9|JL�L7PA V7 JcY JLYG9;J FB7��}JL2;JUO 94E�J FB7�>BACJ:f >KJLYZEGFKJLFB7Z`BH 3NEZ< 3IFB7:<47PA=H 7POB�B3C<47c9;3L24OKJF@7PH 7POBFB7:O}9;7 FKJNf >KJLO}9;EGFKJLFB7yFB7y>@<4> VJL28EZ3N< HB287P<47:O}9;7P<c7yJU94EpdN3L<vOKJ=247:FB7�[ ~�<4<4J Y JLY 9|JIFB7y�NJL2;JLO}94E�JF@7-G^3S� V7cHB283N?BYZ7:A VJ 9;E S J HKJL24J=JU<vJUHBYZE S J�QSUT3N7P< A >BYG94EZA$VX FBEZJL<#`Sf >B7�<4>B28�NEZ24JLA%O@3N< V>@YG9;EGAC3L< JLOB3L<#[

�s3NA=3�J�JU2gf >BEG947:94>B2;J FKJA� O}9;7:24OB7D9I<47 ?KJU<47PEZJ$OKJ$FB7P< S 7PO}942;JLYGE^]WJ QSLTJL3�F@3 S 3NO}94243NYG7�`�FBE Y 7P287PO}9;7FBJ$247:FB7+947PYZ7eY;�3NOBE S Jm`a3N< >B<4> VJU24EZ3L< FKJ � O 947P28OB7:9MO TJL3 H 3 F@7P24EZJLA S 3NO}9|JL2 S 3NA/J$287PFB7CHKJL24J$3N?@947P2S 3NO � JU?BEZYGEZFKJLF@7sOKJc7PO}94247P�NJ�F@3N<�FKJLFB3L<#[�1�JL2;Jc>BACJcJLHBYGE S J QSLTJL3�f >B7 FB7:A+JUOBFB7 Jc7PO}9;287P�}J S 3NO � VJZdL7PYF@7c<47P>@< FBJLFB3N<L`KH�3N2s7eb 7PA=HBYZ3m`B>BACJ JLHBYGE S J QSLTJL3 F@7 7 � ACJLEZY?` 3N> �}949;H ` V7cOB7 S 7P<4<BVJL24EG3I>BA%HB283L9;3 S 3LYZ3F@7$9;24JLOB<8H�3N2f9;7rf >@7��}JL24JLO}9|J"7:<4<4J S 3NO �KJL?BEZYGEZFKJUFB7�` S 3NA=3)V7$3 S JL<83 FB3*� � 1 [�� �KYZ3L<43 � J FB3N<F@7P<47:O dN3NY dN7PF@3N247:<$FKJ*� O 947P28OB7:9 V7AY JZ]P7P2 S 3NA f >B7�J S 3NACH@YZ7eb EGFKJLFB7 FB7 S 3NO}9;243LYZ7 F@7 iK>)b 3 7�J�NJL2;JLO}94E�JMFB7 EGO}9;7P�L24EZFBJLFB7�Y 3N<4<87PA HKJL<8<;JLFBJL<�HKJU2;JI3N<v>@<4> VJL28EZ3N< �KOKJUEZ<#[ V~ EZA=H�3N2f9|JLO}947cOB3L9|JU2�f >B7EG<4<83I943N24OBJCJM247:FB7�<4EGACHBYG7P< 7�ACJLEZ< 7:< S JLY VJZdL7PY?[

� 3 7PO}9;JLO}9;33`c7:<4<;J�FB7P< S 7:O 942;JLYGE^]PJ�QSLTJL3�V7 HB243N?@YZ7PA VJU94E S J HBJL2;J�J f >KJUYZEZFBJLFB7�FB7 <47:2ld E8QS 33[ �� O}947P24O@7:9�Y 3NEaHB283 587:9;JLFKJ+HKJU2;JC7:O}9;247:�}JL2v3N<�HKJ S 3L947P<cJU942;JMdmV7P<^F@3 AC3 FB7:YZ3=FB3+A=7PYG�B3N2 7P<lY 3L2UQS 3m` 3N><87i54Jm` 3 HKJ S 3L947�<47:2KVJ 7:O S JUACEGOB�KJLFB3uf >KJLOBFB3 H�3N<8<WVX dN7PY?[�� <4<83 V7v>BA HB283N?BYG7PACJyHKJL24J J�9;2;JUOB<4A=EZ<8< TJL3F@7�942KVJZY 7:�N3N< FB7 JLH@YZE S J�QSLT3L7P< <87POB<PVX dN7:EZ<vJL3N< HKJU2 �JLA=7:94243N< FB7�G^3S�I`@7 S 3NA%287P<f9;24EfQSLT3N7:< FB7�dLJUYZ3N287P< FB7J 9;2;JU<433`B?BJLOBFKJI7c9|J b@JMFB7�H�7:24FKJ)[

��<43NYG>RQSLTJL3CJC7:<4<87 HB243L?BYZ7:A+J V7 FBE YfVX S EZY FB7y<47:2^JLY S JLORQS JLFKJIA+JUO 947POBF@3 JC7:< S JLY�JL?@EZYZEGFKJLFB7c7yO TJL3EGOBFB3 S 3NO}9;24J�J �KYZ3L<43 � J$FB7P< S 7PO}942;JLYGE^]WJUFKJ FKJ7� O}9;7:24OB7D9M[ � S 3NA >@9;J�QSLTJU3�FB7 HKJ S 3L947P<�V7+9;JLA ?nV7:A3L>@9;283 S 3NA=HBYZE S JLFB3L2#`W5BVJcf >@7 7:<89;J=O TJU3MFBEZ<8H�3NO@EZ?BEGYZE^]PJyJM287P<47:2ldUJIFB7c247 S >B28<433` JL3 S 3NO}9;2KVJU24EZ3MFBJ S 3 �A >@9|J�QSUTJL3 F@7 S EG2 S >BEG9433[�~�b EZ<8947PA S 3LOB<4EGFB7P24J�QSLT3N7:< J <87�Y J�]:7P2�f >KJUO 943 �J ACJLOB7:EZ2;J S 3LAC3y3N<n942KVJZY 7:�N3N<< TJL3 HB28EZ3N28E^]WJUFB3N<#[ � <8<43�FB7LdL7�<47:2 Y 7PEG943 YZ7edLJUOBFB3 7:A S 3LO 9;J <4>KJL< O@7 S 7:<4<8EZFKJLF@7P< FB7 G^3S� 7�FKJ

'

Page 15: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!�� '*68>N6 $�&=< 1 -0/1;24 ')>�4 F�&(,.<?" 9� @�<=-;>

F@EZ<4H 3NOBEG?BEZYGEZFKJUFB7yF@7M247 S >B24<83N< FKJ 247PF@7�[X� JUEZ<�JLFBEZJLO}9;7 < TJL3 JLHB287P<47:O}9|JLFKJU< JL<^9 V7 S OBE S JL<�FB7M7P< S J �YG3NOKJLA=7PO}943 FB7��BY�JL<y7 �N7P287PO S E�JLA=7PO}943�JU9;E dN3$FB7��KYZJL<#`�? 7PA S 3LAC3�3 S 3NO}9;283NYZ7CFB7 JLF@ACEG<4< TJU33`R77:OB�N7:OB�KJL28E�JMFB7c9;2BVJZY 7P�N3m`3f >B7_Y JU2 TJL3IJI�}JL24JLO}9;E�J F@3N< 247 S >B24<83N<vJL3I>B<4> VJU24EZ3 �KOBJLY [

����� ��� ������� � �$�����L�� � &���d��� �� !������

~�A �N7P24JLY `�J�ACJLEZ3L24E�J"FKJL<$JLHBYZE S J�QSUT3N7P< A >@YG9;EGA$VX FBE�JU<+HB287 S EG<;J�FB7"EGO}9;7P24JU9;E d EZFKJLF@7�`�7 S 3LAC3S 3NOB<87#f �>k�7PO S E�J+F@EZ<4<833` OB7 S 7P<8<4EG9;J+FB7 JU9;24JL<43C7_dUJL28E�J�QSUTJL3IFB7 JU942;JL<83�6.�UOe:I: �� E YGEZA=EG9|JUFB3N< JXY JLE b@JL< FB7dUJLYG3N247:<�? 7PA FB7 �BOBEZFKJU<#` 7 F@7PH 7POBFB7:OBFB3 FKJ JLH@YZE S J�QSLTJU3+>BACJ+?KJLO@FKJ HKJL<8<;JLO}9;7MA$VX O@EZACJI9;JLA ?nV7:AH 3 FB7M<47:2c247#f >BEG<4E 9|JLFB3m[M�s3NA=3 J � O}9;7P28OB7:9y>@94EZYZEp]WJ=3 AC3 FB7PYG3 FB3 A=7PYZ�@3N2^7P< Y 3N2UQS 33`k7P<f9|J O TJL3 V7IJ287PFB7 JLHB243LHB24EZJLFKJ HKJU2;J�JL< JLHBYGE S J QSLT3N7:< A >BY 9;EGA VX FBE�JL<c<87PA f >B7 AC3 FBE � S J�QSUT3N7P<y<47 54JLA'287WJLYGE^]PJLFKJL<L[~�<8<47P<�HKJL2 �JUAC7D9;243L< FB7yF@7P<47:ACH 7PO@�B3+< TJL3+FB7:OB3NA=EZOKJUFB3N< HKJL26�JLA=7:9;283N< FB7-Gc>BJLYZEGFKJLFB7cFB7u� 7:2ld E8QS 33`7v3 JU94>KJLY �N2;JUOBFB7�F@7P<;J �K3 FKJ_� O 947P28OB7:9 V7 EZO}9;7:�N2;JU2sJ �NJL2;JLO}94E�J�FB7P<8<47P< HBJL2 �JLA=7:94243N<nJ JU2gf >BEG947:94>B2;J5BVJM7Ub@EG<8947PO}9;7 FKJX� O 947P28OB7:9#[

� A 243L947WJLFB3L2:f >@7 Y J�] 3 7PO S JLA=EZOB�BJLAC7:O}9;3 FB3N<IHKJ S 3L9;7:<C<87P�N>@EZOBFB3 3 AC3 FB7:YZ3�FB3��:�<:N> ��$^ �;��$ ��> Ub ^ ����JL28A+J�]:7POKJc3N<mHKJ S 3L947P<mFB7 9;3 FB3N<m3N<�>B<8> VJL28EZ3N<m7PA�>BA*`�XUP �� S 3NA=HKJL2f9;EGYZ�KJLF@33[J� <4<43<8EZ�NO@E � S JCf >B7 f >KJLOBFB3 >BA >B<8> VJL28EZ3 7PO d E�JL2�>BACJ 24J654JLFKJ FB7IHKJ S 3L9;7:<#`�3$HB2BV3Zb EZA=3 >B<4> VJU24EZ3 9;7:2KVJ<87P>"HKJ S 3U9;7I7PO �BYZ7PEG2;JLF@3 JLH V3N<�7P<8<;J 2;J654JLFBJm`k3Cf >@7+J S JL24287:9;JL2KVJ >BA J 9;2;JU<43 J S EGA+J F@3$7:<4H 7P2;JUFB33[� JU<43 3�`�XUP ��^FB3 243L947WJLF@3N2^9;7:OB�KJ$<8EZFB3 943 FB3 3 S >BHKJUFB3 H�7:Y�J 2;J654JUFKJ F@3$HB28EZA=7PEG243 >B<8> VJL24EG33`k3N<HBJ S 3L947P< <8>B?B<87#f �>B7PO}9;7:<M<47:2 TJL3�H 7P28FBEZF@3N<#[$~�<89;7�V7+>BA S 3LACH 3N289;JLA=7PO}9;3 OKJU94>B2;JLYmHKJU2;J 3rf >@7 <47S �BJLA+J FB7 >BA AC3 FB7:YZ3�FB7 <47P2 d E8QS 3 �a� ��� 6� �<:!$ BD>�,���$� �<:($/� ��US ���CEU[�~�A >BACJ 287PFB7v3NOBFB7 7P<f9;7i54J<87POBF@3"9;24JLOB<8ACE 9;EZFBJAf >KJLY^f >B7:2=JLHBYZE S J�QSUTJL3�<47:OB<PVX dN7:YvJ JU942;JL<833` S 3NA=3 S 3NOmY 7:2P�7:O S EZJL<IFB78d�VX FB7P3 3N>dL3w]�` J:f >KJLYGEZFKJLF@7cFB7P<8<;JL<vJLHBYGE S J QSLT3N7:< V7 F@7P�N24JLFKJLFKJ S JL<43=3 S 3N2424JLA%7:<4<4JL<v24J654JLFKJU<#[

� � O}9;7P28OB7:9nH 3 FB7 3�Y 7:247 S 7P2�f >KJLYZEGFKJLFB7 F@7v<87P2ld EfQS 3 JU3N<m<47P>@<n>B<8> VJL28EZ3N<`<47 3 `�XUP ���FB3 243U9;7WJUFB3N2Y 3L2 S 3NA=HKJL2894EZYG�KJLFB3^F@7 ACJLOB7:EZ24Js58>@<89|J)` 3L>C<87i54Jm` S JUFKJ >@<4> VJL28EZ3�9;7:A J <8>KJ�HKJL2 S 7PYZJ FB7 >@94EZYGE^]WJ QSLTJL33[1�JL2;J5f >B7 EG<4<43"<47 54J"247PJLYZEp]WJLF@33`n3L<CHKJ S 3L947P<+O TJL3�H 3 F@7PA <47:2=942;JLO@<4A=EG9;EGFB3N<MFB7 J S 3L24FB3 S 3NA J3L24FB7:A�FB7 S �B7P�}JUFKJm`@>@A+J O@3 dUJ 3L24FB7:A�FB7edN7c<87P2 7eY 7:9;>BJLFKJ H 7PYG3N< JLYG�N3N28EG9;A=3N<�FB7�7P< S JLYZ3LOKJLA=7PO}9;3F@7 �BY�JL<L[

&

Page 16: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!�� '*68>N6 $�&=< 1 -0/1;24 ')>�4 F�&(,.<?" 9� @�<=-;>

1�JL2;J 3�Y 7P287 S 7:2��NJL2;JLO}94E�J FB7 Gc3 �I`kV7`O@7 S 7:<4<BVJL24EZJ^J <8EZOKJUYZE^]PJ�QSLTJU3 HKJL2;J 3N<a243L947WJLF@3N247:<�FB3 S JUACEGOB�B3f >B7 3iK>)b 3 HKJL<8<;Jm[0� <8EZOKJUYZE^]PJ�QSLTJU3 V7 247P<8H�3LOB<KVJZdL7PY H 3N2�FB7D9;7P28ACEGOKJL2�3N<�287 S >B24<83N<�f >B7 J�f >B7:YZ7 iK>�b@33L?@9;7:2KVJC7:A S JLFKJ=243L947WJLF@3N2 FB3 S JLACEGOB�B33[���<8EZOKJLYGE^]PJ�QSLTJL3IFB7D9;7:24A=EZOKJI3N< 247 S >B24<83N<�F@7 S JUFKJ iK>�b@3J 9;2;JMd�V7P< F@7 S Y�JU<4<47:< FB7c<47:2ld E8QS 3N< HB2 V7�� F@7 �KOBEGFKJL<L[m1RJL24J 3 S JL<83=F@7^OB3.dN3N<RiK>�b@3L< 7PO}9;24JLO}9;7P<L` V7�Y 7PE 9|JJ S Y�JU<4<4E � S J QSLTJL3�O@7P<4<4JL< S YZJL<4<87P< F@7 <47:2ld E8QS 33[G��O}9;7:< FKJ�J S 7PE 9|J�QSUTJL3�7 287P<87P2ldUJ�FB3 247 S >B24<833`�7P<8<47:<iB>)b 3N<v<87P2 TJL3+JUFBACE 9;EGFB3N<sH 7PYG3I243L947WJLFB3L2#`B7:<89;7�V7c3=HKJLH 7PYkFB3 S 3LO 94243NYG7cFB7 JLFBA=EZ<8< TJL33[

Y >BO S EG3NOKJLA=7PO}943^FB7P<8<47 AC7 S JLO@EZ<4A=33`Zf >@7 EZO S YZ>BE@J^<4EZOBJLYZEp]WJ�QSUTJL33`L3 S 3NO}9;283NYZ7 F@7 JLFBA=EZ<4< TJL3^7 37:< S JLYZ3NOBJLAC7:O}9;3�F@7 �KYZJL<#` OB7 S 7P<8<4E 9|J�FB7n>BACJ S 3 3NH 7P24J�QSLTJU3v7:O 94247n3N<R283L9;7PJLFB3N287P<�f >@7�Y 3N�N7 �J �KYZ3N<83 � J3L24EZ�LEZOKJLY FKJ�� O}9;7:24OB7D9M` FB7 S 3LA >@9|J QSLTJL3cFB7 HBJ S 3L947P<�7 FB7 <83NAC7:O}9;7 HB283 dL7P2`J S 3LOB7 S 9;Epd EGFKJLFB7 FB7 <87P>B<EGO}9;7P�L2;JLO}9;7:<#[ {^7Ld EGFB3 J+EZ<8<433` <47 9;3L24OKJ S 3NA=HBYZE S JLFB3+J EZO}9;283 F@>RQSLTJL3+FB7 A=7 S JUOBEZ<8AC3N<vFB7 G^3S� OKJ� O}947P24O@7:9M[`~�<4<4J S JU2;J S 9;7P2PVX <f9;E S J FBJu� O}9;7:24OB7D9�Y J�] S 3NA f >B7v3N<nHBJ S 3L947P<n<47i54JUA�9;2;J 9|JLFB3L<nFB7�J S 3L24FB3S 3NA 3 AC3 FB7:YZ3 FB3 AC7:YZ�B3L2c7P<lY 3L2UQS 3$6 `���<:!$ �TP > U: EU`�H�3N2�EG<4<43 O TJL3 � VJ 247:<47P2 dUJ FB7=247 S >B28<43N< S 3LAC3J S 3NO}9;7 S 7MOKJ 287PFB7 947PYG7LY;�3NOBE S Jm[�1�JL2;J 3ZY 7P247 S 7:2�JLYZ�N>@A+J=�}JL2;JUO 94E�J=FB7 G^3S� V7 OB7 S 7P<8<KVJL28EZ3 3�Y 7:247 S 7P2>@A�9;24JU9|JUAC7:O 943 FBE Y 7P247:O S EZJLFB3MHKJU2;J�iK>�b@3L< ACJLEG<sHB28EZ3N28EG9 VJU24EZ3L<#`}247:<47:2ldUJLOBFB3I287 S >@24<43L< HBJL2;J 7:<89;7:<#`<87iY 3N2 3 S JL<433[�� TJL3+OB7 S 7P<4<BVJL24EG3N<�A=7 S JLOBEG<4A=3N<�JUFBE S EZ3NOKJUEZ< J � O}9;7:24OB7D9M` H 3NEG< 3+HB243L943 S 3NYZ3N�i1 O TJL3H 3N<8<4>BE A=7 S JLOBEG<4A=3N< FB7^�NJL2;JLO}94E�J FB7 G^3S�+3L> FB7c247:<47P2 dUJIF@7c247 S >B24<83N<#`KHBJL2;JMJ FBE Y 7P287PO S E�J�QSUTJL3 FB7<87P2 d EfQS 3N<L[

�vYDV7PA�FBEZ<8<433`NJ S JL24J S 947P2PVX <894E S J^F@7P< S 7PO}9;24JLYZEp]WJLFBJ^FKJ�� O 947P28OB7:9#` H 3 FB7 J S JL24287:9|JU2�>BA�>@<43�EZOB7�� S E��7:O}9;7`FKJ 247PF@7�` S 3NA=3 <47P2BVJ S 3NA=7PO}9|JLF@3vOB3L<aH@2KV3Zb EZA=3N< S JLHBE 9;>BYG3N<#[J��< S JL>B<;JU<�<87P2 TJU3vFBEZJL�NOB3L<89;E S JLFBJL<7I<83NYZ>RQSUT3N7P<cHBJL2;J 7P<8<47=>B<43 EGOB7 � S EZ7:O 947I<47P2 TJL3 JLH 3NO}9|JLFKJU<cOB3 FB7 S 3N24287P2�FB3 9;24JL?KJLYG�B33[i� <83NYZ>�QSLTJL3ACJLEG<+EZO@FBE S JLFKJ�J 9;>KJLYGAC7:O}9;7 V7�J 7:OB�N7:OB�KJL28E�J�FB7�942KVJZY 7:�N33`�f >B7 S 3LOB<4EG<89;7 OKJ FBEZ<f9;28EZ?B>BEfQSLTJL3"FB3N<iB>)b 3N<�7PO}9;287=3L< 7:OBY�J S 7P<c3L> 287 S >B24<83N<yFBJ 287PFB7MF@7=ACJLOB7:EZ24Jof >B7I7P<8947P< O TJL3 <47M943N24OB7:A3 S EG3N<43N<L`J S JL28247:9;JLOBFB3M>@<43MEZO@7 � S EZ7PO}947�[� � 1� � 6WV"X �Y:IO\[ ?>@:N>CBD> � ]_^a`���� QcbdOe:NBDfgO �ghCEMV7^>@A�HB283L9;3 S 3LYZ3cf >B7H 3N<8<4EZ?@EZYZE 9|JCJ$JLH@YZE S J�QSLTJU3 FKJ 7POB�L7POB�KJU24E�J FB7 942KVJZY 7:�N3 7PA >BACJ 247:FB7IFB7Ld EZF@33`�HB24EGO S EGHKJLYZA=7PO}947�`kJJUHBYZE S J�QSUTJL3CF@3 S 3NO S 7PE 9;3 F@7 S 3NA >@9|J�QSUTJL3 FB7 S EG2 S >@EG9;3L<�7PA >BACJ+287PFB7 F@7 S 3LA >@9|J QSLTJL3 F@7 HKJ S 3L9;7:<#[�vA ? 3N<�3N< S 3NO S 7PE 9;3N<�<47:2 TJL3 7eb HBYGE S JLFB3N< JLFBEZJLO}9;7Z[N�3N? 587D9;EpdL3$F@7P<4<87C942;JL?KJUYZ�B3 V7=J S 3NOB<f9;28>RQSLTJL3F@7 >BA JLA ?@EZ7PO}947yFB7 9;7:<89;7:<#`�3NOBFB7y<47P2 TJL3+287WJLYGE^]PJLFB3N< 9;7:<8947P< S 3NA 3+HB283L9;3 S 3NYG3 �$1��� 943N24OBJLOBFB3H 3N<8<WVX dL7PY�JyJUOKJLYZEG<47 FB7 FB7:<47PA=H 7POB�B3 FKJ 287PFB7 S 3LA 7v<87PA G^3S�I7 7PO@�N7POB�BJL24EZJ FB7 9;2BVJZY 7P�L33`}7Ld EZF@7PO �S E�JLO@FB3Xf >BJLEZ< < TJU3CJU<�dUJLO}9KVJL�N7PO@< FBJ=>@94EZYGE^]WJ QSLTJL3 F@3o�$1��� 7PA >BACJM247:FB7�[

+

Page 17: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

� �%� �� ��� ���

������� �%� � � � &'�)("* �+ � �

�s3NA=3=J:� O 947P28OB7:9 V7�>BA+J 287PFB7 O TJL3I3N28EZ7:O 9;JLFKJMJ S 3NO@7eb TJL33`K3N< HBJ S 3L947P< FB7�>BA%A=7P<8AC3�iK>�b@3H 3 FB7PA'H�7:2 S 3L24247:2 S JLA=EZOB�@3N< FBE Y 7P247:O}9;7P<CJU9 V7 J S �@7P�}JLFBJ"JL3�F@7P<894EZOB3m[ �vA iB>)b 3 S 3NOB<4EG<8947 7:A>@A+J�<87#f �>k�7PO S E�J FB7 HKJ S 3L9;7:<IFB7 >BA S 3NACH@>@9|JLF@3N2MFB7 3N28EZ�N7:A JU9 V7 >BA 3N> 9;243 FB7 F@7P<894EZOB3m[E��<S JL2;J S 9;7:2WVX <89;E S JL<yFB7 S JLFKJ iB>)b 3�H�3 FB7:A/<87P2 287PHB287P<87PO}9|JLFBJL<IJU9;24JMdmV7:< FB7 f >BJU9;283�HKJL26�JLAC7D9;283N<#VM3J 9;2;JU<433` J�dUJL28E�J�QSUTJL3^FB3 JU942;JL<83 �C�UOe:I: ��U` J�dUJ�] TJL3�7 J S 3NO � JL?@EZYZEGFKJLFB7 t�� [R~m<8<47:<n< TJL3c3N<�HKJL26�JLA=7:9;283N<F@7 G^3S�I`�f >@7=58>BO}9;3N<+FB7:947P24A=EZOBJLA S 3NA=3�>@A iK>�b@3 F@7LdN7 <47P2C9;2;JUOB<4H 3N289;JLFB3 H 7PYZJ"287PFB7�HBJL2;J<4JU9;EG<lY J�]:7P2 �JIJLHBYGE S J QSLTJL33[

�vYZ�N>BACJL<MJUHBYZE S J�QSUT3N7P< < TJL3�A >BE 9;3�7Ub EZ�N7:O 947P<I7PA S 7:289;3L<=HBJL2 �JLA=7:94243N< FB72G^3S�I[�� JUFKJ"iK>)b 33`F@7PH 7POBFB7:OBFB3 FBJ <8>KJ"JUHBYZE S J�QSUTJL33`mH�3 FB7:2KVJ H�3N2I7Ub@7:ACH@YZ3 <47P2I<87POB<PVX dN7:Y�JU3�JU942;JL<833``7 JL3 A=7P<8AC3947PA=H�3C<47:2v9;3LYZ7P24JLO}9;7 �J S 3NO � JU?BEZYGEZFKJLF@7 F@3N<�FKJUFB3N<#[ ~�<8947 <87P24EZJC3 S JL<83 FB7 >BA+JCJLHBYGE S J QSLTJL3IA >BY��94EZA$VX FBEZJ�EZO}947P2;J 9;EpdUJm[�� JL<`H 3 FB7vJ S 3NO}9;7 S 7P2`3y3LH�3N<f9;33` 3 iK>)b 3 <87P2`<47:OB<WVX dN7PY �J S 3NO � JU?BEZYGEZFKJLF@7 7v<87P2943NYZ7:2;JLO}947�JL3=JU9;24JL<433` S 3NA=3 V7c3 S JU<43IFKJM9;2;JUOB<lY 7:2P�7PO S E�JIFB7�7�� A+JUEZYZ<n7 JL2gf >BE dN3N<L[

� ��JL? 7PY�J*�g� [�� A=3N<f9;2;J*f >@7"JU< JLHBYGE S J QSLT3N7:< FB7 ��� ��� ����# �

� �����7 " � ����� � 247Lf >B7P287PA

S 3NO � JU?BEZYGEZFKJLF@7�FB3N<sFKJLFB3N<L`B7c< TJU3 9;3NYG7P2;JUO 947P< JL3IJ 9;2;JU<433[�1a3N2 7P<8<47:< A=3L94EpdN3L< 3:� � 1�V7^>@94EZYGE^]WJUFB3OBJ S JLA+JUFKJ FB7c9;24JLOB<4H 3N2f9;7�` S JL<43=�KJ654J=JLYG�N>BA%7:24283=OBJI942;JLOB<8ACEG<4< TJL3MFB3LiK>)b 33`K247D9;24JLOB<4A=EZ<8< TJL3 V77eY 7:94>KJLFKJm` O TJL3CEZA=H�3L289|JUOBFB3I3 JU942;JL<83of >B7yEZ<4<83 J S JL24287:947 HKJL24J+JI9;2;JUOB<lY 7:2P�7PO S E�J)[���VJ=7PA 247:Y�J�QSUTJL3JU3�JU942;JL<833`RH 3 F@7�� <87CF@E^]P7:2if >B7+JL< JUHBYZE S J�QSUT3N7P< FB7������ 7C24YG3N�NEZO H 3N<4<8>B7PA/>BACJ 943NYZ7:2 �JLO S E�J JL3J 9;2;JU<43 AC7:OB3N2�f >B7=JL<cFB7I7 � ACJLEZYa7:Y 9;HQ[M~�<8<;J S JL24J S 947P2PVX <894E S J <87=F@7LdN7 �J EZO}947P2;J 9;Epd EGFKJLFB7 S 3NA 3

Page 18: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!�� � PQ<?+J-;&=<�� -�/132-34

�RJU?�7:Y�J:�g� [��wVm� 7#f >BEZ<8EG943N< FKJL< JLHBYGE S J�QSLT3N7:< JL3N< 1�JL2 �JLA=7:94243N< FB7�G^3S�I[�vHBYZE S J�QSUTJL3 �s3NO � JU?Q[ � 9;2;JU<43 �gOe:Z: �� W JUOBFKJ7�� A+JLEGY JUYG9|J ?BJLE b@J ?KJUE b@J ?KJLE b@JY 9;H JUYG9|J A V7PFBEZJ ?KJUE b@J A V7PFBEZJ����� JUYG9|J A V7PFBEZJ ?KJUE b@J A V7PFBEZJ28YZ3N�NEGO JUYG9|J A V7PFBEZJ A V7:FBE�J ?KJLE b@J

VJL>@FBEZ3M<83N?$F@7PACJLOBFKJ ?KJLE b@J ?BJLE b@J JUYG9|J A V7PFBEZJd�VX FB7P3I<43L?$FB7:A+JUOBFKJ ?KJLE b@J ?BJLE b@J JUYG9|J JLYG9;J

9;7:YZ7LY 3LOBE�J ?KJLE b@J JLYG9;J JUYG9|J ?KJLE b@Jd EZFB7:3 S 3NOmY 7:2P�7PO S E�J ?KJLE b@J JLYG9;J JUYG9|J JLYG9;J

>@<4> VJL28EZ3^O@7 S 7:<4<BVJL24EZJ^HKJL2;J�J�OKJMdN7:�}J�QSLTJU3cOKJ �"7P?M7sHBJL2;J^Jv7eb 7 S >RQSLTJL3�FB7 S 3NACJLOBFB3L<R247:AC3U9|JLA=7PO}9;7Z[� 9;7:YZ7LY 3LOBE�Jc7^J�d EZFB7:3 S 3NOmY 7P2P�7PO S E�J FB7PACJLOBFKJUA�>@A�J 9;2;JU<43 F@7�OB3yA VJ b EGAC3 � �v AC<L` EG<4<83 H 3N2gf >B7J EZO}9;7:2;JU94Epd EZFBJLFB7MFKJ$JLHBYZE S J�QSUTJL3 <47:24E�J S 3LACHB283NA=7:9;EGFKJm` S 3NAC3 7P<8H�7 S E � S JLF@3�OB3 HKJLFB2 TJL3A��� � ����[1�JL2;J�3 VJU>BFBEZ3 7 d�VX FB7:3�<83N? F@7PACJLOBFKJ 3 JU942;JL<83 O TJL3�V7 S 2WVX 94E S 33`�ACJL< J dUJL28E�J�QSUTJL3 FB3�JU9;24JL<43<8EZA [��v3 S JL<43 FKJ+942;JLOB<8ACEG<4< TJL3 FB7c��� H 7PYZJo� O}9;7P28OB7:9#`aJLH V3N<cJ 7:< S 3NYZ�KJ F@3 S JLOKJLY�H�7:YZ3 >@<4> VJL28EZ3JCJLHBYGE S J QSLTJL3=H�3 FB7yFB7PA=3N2;JU2�JLYG�N>BOB< <47:�N>BOBF@3N<cJU9 V7 S 3NAC7 QS JL2L`�ACJL< >BACJNdN7L] EZO@E S EZJLFB3IO TJL3+H�3 FB7�BJ.dL7P20f >B7:?B2;J^F@7 S 3LO 94EZO >BEGFKJLFB7 69ha^<[C� EkOKJ 942;JLOB<8ACEG<4< TJL33[���?KJLO@FKJ�H 3N2R<8>KJ�dN7L] <47:2KVJ�287#f >BEG<4EG9;JLFKJHBJL2;J�JL<mJLH@YZE S J�QSLT3L7P<0f >B7 OB7 S 7P<8<4EG947PA�F@7 �L2;JLOBF@7�dN3NYG>BAC7 F@7 EZOmY 3N28A+J QSLTJL3^7:A�H 3N> S 3c947PA=H�33[R~�<4<47<87P2BVJ 3 S JL<83 FKJ A+JUEZ3N28E�JMFKJL<cJUHBYZE S J�QSUT3N7P<vFB7cd�VX FB7:33` ACJL<cJ+?BJLOBFKJ HKJU<4<;JUO 947 9|JLA ?sV7PA H�3 FB7 <87P2287#f >BEG<4EG9;JLFKJMH 3N2 JLHBYGE S J QSLT3N7:< FB7"VJL>BFBEG33` ������7�Y 94HQ[

� ����� . ���"�-����� �$�����-�

� EGOKJLYGE^]WJ QSLTJL3 V7C3$HB243 S 7:<4<83�H�7:YZ3 f >BJLYn3 >B<4> VJU24EZ3 �KOKJUYn287#f >BEZ<8EG9;J �J$287PFB7C247:<47P2 dUJm`�YZEG?�7:2;J�QSUTJL33L>�287POB7:�N3 S E�J�QSUTJL3 FB7 247 S >B24<83N<#[ � <8EZOKJUYZE^]PJ�QSLTJU3�9|JLA ?nV7PA V7 247:<4H 3NOB<KVJ dN7PY H 3N2MFB7 �BOBEZ2 S 3NA=3 <47S 3NA=H�3N2f9|JL2BVJ 3�iK>)b 3 FB3N<n>B<4> VJL24EG3N<#[�� FB7:947P24A=EZOBJ�QSLTJL3 FB3 S 3NA=H�3N2f9|JLA=7PO}943yFB3�iK>)b 3 V7v287WJLYGE^]PJLFKJJ 9;2;JMd�V7P< FB3N< HKJL26�JLA=7:9;283N< FB7_f >KJLYZEGFKJLFB7cF@7 <87P2 d EfQS 33[s~�<89;7:<vHBJL2 �JLA=7:94243N< < TJL3=942;JLO@<4A=EG9;EGFB3N< HBJL2;J

Page 19: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!�� � PQ<?+J-;&=<�� -�/132-34

�REZ�L>B2;Jc�l� [��wVm� 7P<87P2 dLJ=FB7 � 7 S >B28<43N< S 3NA������c1�[943 F@3N<�3N<�O V3N<^287P<4H 3NOB<BVJZdN7:EZ<cH 7PYG3 7PO S JLA=EZOB�KJUAC7:O 943+FB3 iB>)b 33` 3N> S Y�JL<8<47 F@7-iK>)b 33[ �s3NA 7P<8<;JL<EGOmY 3N28A+J�QSUT3N7P<L`s3"243L947WJLFB3L2CH 3 F@7�V�287P<47:2ldUJL2"`�X<P �� �IFB7 9;24JLOB<4A=EZ<8< TJL3 OKJL<CEZO}9;7:2lY J S 7P<=FB7 <4JBVX FBJm`287P<87P2ldUJL2^JC?KJLO@FKJof >B7 JZf >@7PYZ7 iK>)b 3 >@94EZYZEp]WJL2BVJm`B7yFB7 �KO@EZ2^J=HB24EG3N24EGFKJLFB7�FB7:<4<87�iK>)b 3 7PA 247:Y�J�QSUTJL3JU3N< 3N>@9;283N<#[

AC7 S JLOBEG<4A=3�? VJL<8E S 3�F@7 Y >BO S EG3NOKJLA=7PO}943�FKJ�<4EZOBJLYZEp]WJ�QSUTJL3�FKJ�247:<47:2ldUJ�FB7 247 S >B24<83 V7 3�<87���L>BEZO}9;7Z[ � 3N24EG�N7PA'7PO d E�J�AC7:OB<;JU�N7POB<=FB7r�@~�� ��1�HBJL2;J�3 HB24EGAC7:EZ283�243L947WJLF@3N2#` S JL<83"7:<8947 283 �947WJLF@3N2+<87i54J S JLHKJ�]$FB7�JU947POBF@7P2 JU3N<+287 S >@24<43L< f >B7�7P<f9 TJL3�<47PO@FB3 247:<47P2 dUJLFB3N<�V7$247D9;3N28OKJLFB3">BA� ~�� �v1 � ��j:[ ~�<4<4J_dN7:24E � S J�QSUTJL3 FB3N<m247 S >B28<43N<nFBEZ<8H�3NO VX dN7:EZ< V7�Y 7PE 9|JcH 7PYZ3y�s3NO}94243NYG7 FB7���FBA=EZ<8< TJL3F@7=283L9;7PJLFB3N2�7:A 243L947WJLF@3N2 JU9 V7 S �B7:�}JL2yJL3 FB7P<f9;EGOB33`�dN7:24E � S JLOBF@3 <47=JLYG�N>BA 243L947WJLFB3L2cO TJL3 V7 S J �HBJ�] FB7IJU947POBF@7P2^3N<c287 S >B24<83N<c7P<8H�7 S E � S JLFB3L<#[i� 7MJ 247:<47:2ldUJ S �B7P�}JU2cJU9 V7 3 FB7P<f9;EZO@33` 7P<f9;7M287:9;3L24OKJ>@A � ~�� �v1 � ~��@1�����@~ HKJL24J$3)V>@YG9;EGAC3 283L9;7PJLFB3N2_f >B7+7eY 7:94EpdUJ J 247P<87P2 dLJ)[$~�<8<47 HB283 S 7P<8<43�V7287PH 7:94EZFB3 <4JLYG943 �iJ � <;JUYG9;3 JU9 V7cJ 3N28EZ�N7:A FB3MH 7PFBEGFB3 FKJ 287P<87P2ldUJm` �KOKJLYGE^]WJUOBFB3 Jy247P<87P2 dLJ F@3M247 S >B24<833[� ��EZ�N>B24Jo�g� [�� V7 >BACJ EZYG>B<8942;J�QSUTJL3 FB7M>BA 7eb 7PA=HBYG3 S 3NAF@3NEZ<^283L9;7PJLFB3N287P< S 3NA J <87#f �>k�7PO S E�J FB7A=7PO@<;JL�N7:OB< 942;JLOB< Y 7P28EZFKJL< 7PO}9;287 3N< 283L9;7PJLFB3N287P< 7C3N< S YGEZ7:O 947P<yHKJL2;Jrf >@7 J 247:<47P2 dUJ�FB7 247 S >B28<43N<<87i54JI7LY 7D9;>KJLFBJm[

�i~�� � JLF@3L9;3N> 3�HB283L9;3 S 3LYZ3������c1 6 � ��C>@X DB � � �� ��<S@^ :ZO9> � = ?>@:N>CBD> �FE S 3NA=3�3�HKJLF@2 TJL3F@7M<4EZOBJLYZEp]WJ�QSUTJL3 FB7M287P<47:2ldUJ FB7I247 S >B24<83N<#`Jf >B7:Y 3NE�FB7 �KO@EZFB3 7PA ���?[:����S�c1 Y 3LE�FB7P<87PO dN3LYpd EZFB3

>

Page 20: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!�� � )u4�+I,.R 4�&='r@J'G68@ "%<?>M> 2-34

7yHB2436587:9|JUFB3+<87PA 9;7P2 HB2 V7�� 287#f >BEG<4EG943N<�O@7PA S 3NA=HKJU94EZ?BEGYZEGFKJLFB7:< J S >BACH@24EZ2 FB3CH�3NO}943+FB7_d EG<89;JCFB7<8EZOKJUYZE^]PJ�QSLTJU33`�FB7Ld EGFB3 HB24EGO S EGHKJLYZA=7PO}947 JL3GY JU9;3 FB7 JG� O}9;7:24OB7D9+O TJU3 <87P2I>BACJ�247PF@7 3L24EZ7:O}9|JLFKJ JS 3NOB7Ub TJU33` OB7:AJ 287P<47:2ldUJ FB7 287 S >B24<83N<#[u�AC7 S JLO@EZ<4A=3+F@7 A+JUO > 9;7PO�QSLTJL3 FB3L<^247 S >B28<43N<^9;JLA ?nV7:AV7 JLFBJLH@9|JUFB3 �JL< S JL24J S 947P2PVX <894E S JU< FBJ � O}947P24O@7:9M[ � FBEZO��JUACE S J�FKJ 247:FB7 7 FB7"<87P>B< 7PO@Y�J S 7P<8Y 7#]S 3NA f >B7 3+�����^1 >@9;EGYZEp]WJL<8<47�3of >B7 <87 S �KJUA+JIFB7 7:<89;JLFB3odL3NY VJU94EZY HBJL2;JCJCACJLO >@9;7:ORQSLTJL3CFB7 <87P>B<287 S >B24<83N<#[7%AC7 S JLOBEG<4A=3 S 3NOB<8EZ<8947�`�?BJL<4E S JLA=7PO}9;7Z`�FB7CAC7:OB<;JL�L7POB<yFB7+287P<47:2ldUJLFB3 247 S 7PH@943N2cf >B7<87P2 TJL3c7PO d E�JLFBJL<�H�7:24EG3 FBE S JLA=7PO}947sACJLO}9;7PO@FB3c3^7P<f9|JLF@3 F@3cHB2KV3Zb EGAC3v243L947WJLFB3L2#`}7P<f9;7 283L9;7PJLFB3N2�Y JL2KVJ3 AC7:<4A=3y<8> S 7:<4<4E dUJLAC7:O}9;7�[��v<4<4EGA f >KJUOBFB3MJLYG�N>BA 7:OBY�J S 7vFBJ 247:FB7�<87�f >B7P?B24JL2#` 7�3N<nHB243U9;3 S 3NYG3N<F@7 283L9;7PJLA=7PO}9;3 <47 JLFBJLH@9|JU247PA �J O@3 dUJ�9;3NH 3NYG3N�NE�J)`�3 �����^1 Y JL2BVJ�>BA+J�A=EZ�N24J�QSLTJU3�FKJ 247P<87P2 dLJHBJL2;J+3L>@9;283N< S JLACEGOB�B3N<L`}5BVJ f >@7MJL<�A=7PO@<;JL�N7:OB<^H 7P28E V3NFBE S JL< FB7M� ~�����H 7P28ACE 9;EG2 TJL3=J+287P<47:2ldUJ FB7287 S >B24<83N<vHBJL2;JM7P<8<47 S JLA=EZOB�@3MFBEpY 7:247PO}947�[

� ����� � � � ��0 � ��� !"� � !�� ����� ��-�

�s3NA=3uY 3LE�d EZ<f9;33` J <8EZOKJLYGE^]PJ�QSLTJL3 S JL24287P�}J 3L<sHKJL26�JLA=7:9;283N<�f >@7�Y J�]P7:A�JyFB7:< S 28E8QSUTJL3 FB3 S 3NA=H�3N2 �9;JLA=7PO}9;3IFB3I9;2BVJZY 7P�N3m[�� JL< HKJL24JI�NJL2;JLO}94EZ2�f >B7 7P<8<47 OB3.dN3C942KVJZY 7:�N3MO TJL3=HB287i58>BFBEpf >B7 JXf >KJUYZEZFBJLFB7F@7s<47:2ld E8QS 3cFB3N<�3N>@9;283N<�942KVJZY 7:�N3N< S 3NA 287 S >@24<43L<�5BVJv247:<47:2ldUJLFB3N<L`}7�f >B7 3L<R247 S >B28<43N<RFB3^OB3.dN3v9;2KVJ Y 7P�N37:<8947i54JLA/FBEZ<8H�3LOkVX dL7PEZ<yHKJL24J�J 247:<47:2ldUJm`MV7 OB7 S 7P<8<KVJL28EZ3�3 S 3NO}9;283NYZ7CFB7 JLFBA=EZ<8< TJL3m[G S 3NO}94243NYG7+FB7JUFBACEG<4< TJL3 Y JZ]CJ FB7 S EZ< TJL3 FB7CJ S 7PEG9;JL2#`a247 587PE 9|JL2L`a3L>�HB283N24283N�}JL2 J 247P<87P2 dLJ$FB3 287 S >@24<43m[ ~m<8<;J F@7��S EZ< TJL3 V7�Y 7:EG9|J ?BJL<47PJLFKJC7:A >BA S 3NO 58>BO}9;3=FB7�HKJL26�JLA=7:9;283N<�f >B7_Y JZ]�J=FB7:< S 24E8QSUTJL3=FB3=942KVJZY 7:�N33`B7 OKJf >KJUO 94EZFKJUFB7MFB7M247 S >B28<43N<�FBEG<4H 3NOkVX dN7PEG<#[u��A+JUOB7PEG2;J S 3NAC3 3 S 3NO}9;243LYZ7 FB7IJUFBACEG<4< TJL3odUJLE�Y J�]:7P2�JdL7P28E � S J�QSLTJL3yFB7�F@EZ<4H 3NOBEG?BEZYGEZFKJUFB7sFB3y247 S >B28<43 FB7:H�7:OBFB7^FBJ S JU2;J S 9;7P2PVX <f9;E S J F@3y9;2BVJZY 7P�L33[� S 3NO}9;243LYZ7F@7�JLF@ACEG<4< TJU3cFB7 iB>)b 3N< ��Ws� 6 " > ���<:9^ �;: � Oe: � ^ : � EyV7 <4EGACHBYG7P<L`}H�3NEG<�>BA iK>)b 3 S 3NA�7P<4<4JL< S JL2;J S �947P2PVX <894E S JL< H�3 FB7�<47:2vFB7:< S 24EG943CH 3N2 JLH 7POBJL<v>@A V>BOBE S 3IHKJL2 �JUAC7D9;243m[n1�JL2;J=FB7:947P28ACEGOKJL2 <47 7eb EG<89;7:A287 S >B24<83N<I<4> � S EZ7:O 947P<IHKJL24J�>BA iB>)b 3���Ws�_`�?KJL<89;J�<;JL? 7P2MJ S JLHKJ S EZFKJUFB7 FB3�7PO@Y�J S 7�`�78f >KJLO}9;3F@7P<8947y7:OBY�J S 7s5BVJM7P<89KVJ=287P<87P2ldUJLF@3CH 3N2 3N>@94243N<RiK>�b@3L<^��W � 5BVJI7Ub EZ<8947PO}9;7:<#[

S 3NO}9;283NYZ7 FB7�JLFBA=EZ<8< TJL3 F@7 iK>)b 3N<8��Ws� 6 �;^ UOZ^a` � � � Oe:?� ^ : � ECO TJL3�V7�<8EZA=HBYZ7:< S 3LAC3 3S 3NO}9;283NYZ7IFB7+JLFBA=EZ<4< TJL3 7 iB>)b 3N<M��W ��[J� <4<83�<47=FB7LdL7 �J <4>KJ S JL24J S 947P2PVX <894E S J FB7=7PO d EZ3$FB7CFBJLFB3N<7:A 2;J 54JLFKJL<L`^3 f >@7 943N24OKJ J 9|J bBJ FB7 HBE S 3 FB7 7PO d EZ3�FBEpY 7:247:O 947 FKJ 9;J b@J A V7:FBE�Jm[ c> <47 54Jm`

Page 21: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!�� ' )u4�+ @�< 1 <=4�+J-;"%'�+I,.4*@�'7K�R�9- ,�'$. 4

7Ub EZ<8947PA H 7P2PVX 3 FB3N< FB7 3 S EG3N<4EGFKJLFB7Z`�<47:�N>BEGFB3N< FB7 AC3LAC7:O 943N< FB7 EZO}947POB<4J�>@94EZYGE^]WJ QSLTJL33[�1�3N2 V7PA `7Ub EZ<8947 S 3NA=3�<8EZA=HBYZE � S JL2�7:<4<47 A=3 F@7PYZ3$HKJL24J7f >@7 3�JLYZ�L3N24E 9;A=3$FB7 S 3NO}9;283NYZ7+FB7 JLFBA=EZ<8< TJL3 <47i54JY J S 9WVX dN7:Y [ ~�<89|J 9;EZ<f9;E S JLA=7PO}9;7Z` H 3 F@7�� <87 S 3NO@<4EZF@7P2;JU2cJ <43NACJ FB7idsVJL28EZ3N< iK>)b 3N<���Ws� S 3LAC3 <87POBFB3>@A ��W ��<87IJ f >KJLO}9;EGFKJLFB7MFB7�iB>)b 3N<���W � Y 3N2^�N24JLOBFB7M3 <8> � S EG7PO}9;7Z[i��9;J b@J FB7M7PO d EZ3 FB7:<4<47��Ws� f >B7 S JL2;J S 9;7:24Ep]WJ J JL�N247:�}J�QSUTJL3 FB7�dsVJL24EG3N< iB>)b 3N<���Ws� <87P2BVJMJy<43LA+J FKJL<n9;J b@JL<sA V7PF@E�JL<`FB3N<iB>)b 3N<���W ��[3� f >BJLO}9;EZFBJLFB7�FB7iK>)b 3N<���W � FB7LdL7 <47:2 �N2;JLO@FB7�3=<8> � S EZ7PO}947yHKJU2;J:f >B7 JM24J654JLFKJF@7$>BA iK>)b 3�<87i54J S 3NA=H�7:OB<;JLFBJ H 7PYZJ 3 S EG3N<4EGFKJLFB7 F@7$3N> 9;243m[ �v<4<8EZA `s?KJL<f9|J >B<;JU2CJ 247:�N2;J FB7JUYZ3 S J�QSUTJL3MFB7�247 S >B28<43N< HKJL24J�iB>)b 3N<^��Ws�_[

� ����� � � ��!�� � ��� �"�-� �� ��� !"� ( 0 ���� ���L�

� f >KJLYZEGFKJLFB7 FB7 <47:2ld E8QS 3 H 3 FB7 <47:2s�}JU2;JLO}9;EGFKJ JU9;24J.d�V7:<sFB7 FBEpY 7:247:O 947P<nAC7 S JLOBEG<4A=3N<#[R1�3 FB7�<87P2�NJL2;JLO}94EZFKJ JU9;24JMdmV7:<�FB3^<8>BH 7P24F@EZA=7POB<8EZ3NOKJUAC7:O 943�FKJ S JLHBJ S EGFKJLFB7nFB3N<R7:OBY�J S 7P<�FKJ�287PFB7Z`}JU9;24JMdmV7:<�FB3�s3LOBFBE S EZ3NOBJLAC7:O}9;3IFB7_��2BVJZY 7P�N3 6 � ^�� B QJf ^<[ O �ghCEU`B3N> JU9;24J.d�V7:<vFB3C~�< S JLYZ3NOBJLAC7:O}9;3=FB7 1�J S 3U9;7P<6W= ^gB ��<:KQ_BDf ��� X �YO �ghCEU[r�v< FB>KJU< V>BYG94EZACJL<c< TJL3$9 V7 S OBE S JL< O TJU3�EZO}9;7:2�� FB7PH 7POBF@7PO}9;7:<#``7+H 3 FB7:A'<87P2JUHBYZE S JLFKJU< JL3IAC7:<4A=3M9;7PA=H 33[

<4>BH 7P28FBEZA=7PO@<4EZ3LOKJLA=7PO}9;3"FKJ 247:FB7 V7�>BACJ�<83NYZ>RQSUTJL3 JLHBJL247:O 947�[ ~�<4<4J <43NYG>RQSLTJU3 H�3 FB7�J 9 V7�NJL2;JLO}94EZ2 J ?KJUOBFKJ OB7 S 7P<8<KVJL28E�J �JL< JLH@YZE S J�QSLT3L7P< ACJLEZ<C7eb EZ�L7PO}9;7:<#`�ACJL< H 3 FB7�O TJL3 <87P2 S JUHKJ�]�FB7�NJL2;JLO}94EZ2kJU942;JL<83 A VX OBEZA=33`P7m>BA �UOe:I: �� H 7#f >B7PO@33`L287P<89424EfQSLT3N7:<aO@7 S 7:<4<BVJL24EZJL< �J ACJLEG3N24EZJsFKJL<�JLH@YZE S J�QSLT3L7P<A >BYG94EZA$VX FBEZJL<#[ ~�<4<4J�<43NYG>RQSLTJL3 O TJL3��}JL24JLO}9;7C7P<4<4JL<M247:<89424E8QSUT3N7P<MH 3N2lf >@7 J 7P<8H�7:2;J�OB3 `�XUP �� H�3 FB7JUEZOBFKJ=7eb EZ<f9;EG2#` 9;3N28OKJLOBFB3+3 JU9;24JL<43+EZA=HB247ed EG<WVX dN7PY?` 7 S 3LAC3 S 3NOB<87#f �>k�7PO S E�J JNdLJU24E�J QSLTJL3CFB3 JU942;JL<833[�vYDV7:A%FBEG<4<43m`K3=7:OBY�J S 7�V7�>@9;EGYZE^]PJLFB3 F@7 ACJLOB7:EZ24J O TJL3I7 � S EZ7:O 947�[

7PO �KYZ7:EZ2;JUAC7:O 943$F@3 9;2BVJZY 7P�N3$OB3 `�XUP ���H�3 FB7=<47:2 >BACJ$<43LYZ>RQSUTJL3 <4JU9;EG<lY JU9KV3N24EZJ J$HB24EGO S VX HBEZ33`H 3NEG<`H 3 FB7vF@EZA=EZO >BEZ2R3��UOe:Z: �� S 3NO}9;243LY�JLOBF@3 J S JLF �7:O S EZJ S 3NA f >B7�3�9;2BVJZY 7P�N3 S �B7P�NJL2KVJ OB3 287 S 7:H@9;3L2#[1a3N2 V7:Ar`}HBJL2;JcJLH@YZE S J�QSLT3L7P<�7:A�9;7:ACH 3c247PJLY `U3NOBFB7 3 JU942;JL<83cFB3N<�HKJ S 3L947P<mJU942;JMdmV7P<�FKJc247:FB7+V7 S 2PVX 94E S 3m`7:<4<4J <83NYZ>RQSUTJL3 O TJU3 V7 JLFB7#f >KJUFKJm`kH 3NEZ<cJ 9;2;JU<;J J S �B7:�}JLFKJ FB7 943 FB3L<^3N<cHKJ S 3L9;7:<#[y~�<4<;J 9 V7 S OBE S J V7A >BEG943 >@9;EGYZEp]WJLFKJC7PA JUHBYZE S J�QSUT3N7P<^F@7cd�VX FB7P3 7�VJL>@FBEZ3 <83N? FB7PACJLOBFKJ)[ 1�3L2c7eb 7PA=HBYZ3m` 3 � EZOBFB3 � <� 7PFBEZJ 1mYZJ��N7P2 V7�>@A+J JUHBYZE S J�QSUTJL3Ef >B7�>@94EZYZEp]WJ 7P<4<4J 9 V7 S OBE S J HKJL24J 247 S 7P? 7P2 VJL>BF@EZ3 77d�VX F@7P3 FKJ

���

Page 22: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!�� ' )u4�+ @�< 1 <=4�+J-;"%'�+I,.4*@�'7K�R�9- ,�'$. 4

� O}947P24O@7:9M[� �REG�N>B24J��g� [st)`}A=3N<8942;J^3 S 3NA=H 3N289;JLAC7:O}9;3^FB3 JU942;JL<83cFB7 HKJ S 3L9;7:<�7PA�>BA iK>)b 3�f >KJLOBFB3 7P<f9;7

HBJL<4<4J�H�3N2�dsVJL24EG3N</`�XUP �� ��FB7+942;JLO@<4A=EZ<4< TJL33` f >@7+9|JLA ?sV7PA 7P<f9 TJL3 <47PO@FB3�>@9;EGYZEp]WJLFB3L< H 3N2y3N>@9;283N<iB>)b 3N<#[ � <43NACJ FB3N< J 9;2;JU<43N< 7:A 943 FB3L< 3N< `�XUP ���CA=3N<8942;J%f >B7 3 JU942;JL<83 FB7�HKJ S 3L9;7:< O TJL3V7�JL<4<83 S E�JLFB3 <83NA=7PO}9;7 �J�H@243NHKJU�}J�QSLTJU33[ � 7P<8H�7:2;J 7PA �KY�J)V7�OKJ%dN7:24FKJLF@7 J 247P<8H�3LOB<KVJZdL7PYcH 3N2�L7P2;JU2=7:<4<4J dUJL28E�J�QSUTJL3 FB3 JU9;24JL<433``H 3NEZ<IJ �KY�J�V7 >BA 287 S >B24<83 S 3LACHKJU289;EGYZ�KJUFB33`�7 H�3L289|JUO 9433``<47P>F@7P<47:ACH 7PO@�B3�V7�FB7:H�7:OBFB7PO}947yFB3 S 3LACH 3N289;JLA=7PO}9;3MFB3L< 3L>@9;283N<RiK>)b 3N<#[

�REZ�L>B2;Jc�l� [qt)Vm{^7:OB<4EGFKJLFB7�FKJcdUJL28E�J�QSUTJL3IFB3=JU9;24JL<433[��s3LOBFBE S EZ3NOBJLAC7:O}9;3cFB7��a2KVJZY 7:�N3 V7 287P<4H 3NOB<BVJZdN7:Y H�3N2�287P�N>@Y�JL2mJ^9|J bBJ�A V7PFBEZJ^FB7 7PO d EZ3 FB7 FKJ �

F@3N<#[ V~"�N7P24JLYZA=7PO}9;7s>@9;EGYZE^]PJLFB3^HBJL2;Jc�}JL24JLO}9;EG20f >B7 >BA�>B<8> VJL24EG3cO TJL3�7eb S 7PFKJyJ�dUJ�] TJL3�7P<8H�7 S E � S JLFKJO@3 S 3NO}942;JU943�FB7 <87P2ld EfQS 33[7�vH V3N< S 3NO S 3N24FKJU2 7PA S JL28247:�}JL2 >@A 942KVJZY 7:�N3 S 3NA JU< S JU2;J S 9;7P2PVX <f9;E S JL<7:<4H 7 S E � S JLFKJL<L`�J 287PFB7=FB7edN7+<87P2 S JLHKJZ]CFB7=A=3NOBEG943N2;JU2^3 942KVJZY 7:�N3 FB3 >B<8> VJL28EZ3 7NdL7P24E � S JU2 <87+7:YZ77:<89KVJ�<87P�N>@EZOBFB3�JU< S JL24J S 947P2PVX <894E S JL<�7P<8H�7 S E � S JLFBJL<#[`� JL<83�3c>B<4> VJU24EZ3�O TJL3c7P<f9;7 54Jm` J^247:FB7 FB7LdL7 <;JL? 7P2f >B7+J�QSLTJU3 <47:2KVJ 7eb 7 S >@9|JLFBJm[ ~�<8<47+A=3NOBE 9;3N24JLA=7PO}9;3 FB3 9;2KVJ Y 7P�N3 FB3 >@<4> VJL28EZ3 V7 S 3NOB�B7 S EZF@3 S 3LAC31a3NYZE S EZJLAC7:O}9;3 FB7��a2KVJZY 7:�N3 6 � ^�� BK= > �YO9B<O �ghCEU[

W JUYZFB7v�K>B2;JLF@3 6W] � ^ ��� � X;B ��<: E�7v3iW JLYGFB7 FB7^�RE S �KJL<K6 � > ���� � XcB ��<: E�< TJL3 JLYZ�L3N24E 9;A=3N<�FB7S 3NOBFBE S EG3NOKJLA=7PO}9;3cF@7 9;2KVJ Y 7P�N3c>@94EZYGE^]WJUFB3N<RHBJL2;J^YGEZA=EG9|JU2�Jc?KJUOBFKJcFB7 >B<8> VJL24EG3N<#[� Y >BO S EZ3LOKJLA=7PO}9;3F@3�JLYG�N3N28EG9;A=3=V7m<87PA=7PYZ�BJLO}9;7`J >BA�?KJLYGFB7 S 3NA�>BA Y >B283 O@3�Y >BO@FB33` FKJBVX 3 OB3NA=7�[ h�VJ >BA�?BJLYZFB7�f >B7J S >BA >@Y�J HKJ S 3L9;7:<#[R�vACJs9|J b@J S 3NO@<89|JUO 947mFB7mHKJ S 3U9;7P<QdUJ�]PJLA�H 7PYG3�Y >B2433[a~�<89;J 9;J b@J EZOBFB7:H�7:OBFB7mFB3

�&�

Page 23: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!�� &E6 R��QF�<(,M'S,.F�R -;>:!L+I,�P '�R.T '7BC<���PQ'SR.T

iB>)b 3 FB7^HKJ S 3L947P<�f >B7�7P<8947i54J 7:O 942;JLO@FB3 OB3 ?BJLYZFB7Z[�1�3L289|JUO 9433` S JL<83M3�iK>)b 3 F@7^HKJ S 3L9;7:<s7PO}942;JLO}9;7<87i54J ACJLEZ3N2�f >B7I3 iB>)b 3$FB7MHBJ S 3L947P<�f >B7:dUJ�]WJm`k�BJ.dL7P2BVJ$J S >BA >BYZJ�QSLTJU3 FB7MHKJ S 3L9;7:< O@3 ?BJLYZFB7Z[c�dUJ�] TJL3 FB38Y >B243 7Lf >@EpdUJLYZ7IJ 9;J b@J F@7I942;JLO@<4A=EZ<4< TJL3 A VJ b EZACJm` J S JUHKJ S EGFKJLFB7IFB7IJU24ACJ�]P7:OKJLA=7PO}9;3F@7 HKJ S 3L9;7:<�FB3C?KJLYGFB7y7Lf >BEpdUJLYG7yJU3C9|JUA+JLO@�B3CF@3�`�XUP �� FB7y942;JLOB<8ACEG<4< TJL33` 7 JXdUJ�] TJL3CFB7 HBJ S 3L947P<f >B7C7PO}9;24J 7#f >BE dUJLYZ7CJ 9;J b@J$FB7=9;2;JUOB<4A=EZ<8< TJL3$FB3 7:ACEG<4<43L2uf >B7C<47P2BVJ S 3LO 94243NYZJLFKJm[ ~�O}9 TJU33`R<87+3N<HBJ S 3L947P<0f >B7s7PO}9;24JLA)94EpdL7P2�J�dUJ�] TJL3^A >@EG9;3 ACJLEZ3N2Jf >B7 J�dUJ�] TJL3^FB3�Y >B243^3�`�X<P ���EZ2BVJ 942;JLOB<8?�3L24FKJL2L`3L?B24EG�}JLOBFB3$3�243L947WJLF@3N2 J F@7P< S JL289;JL2 3N< HKJ S 3U9;7P< <4>B?B<87#f �>B7PO}947P<#[*� Y >BO�QSLTJL3�FB7:<4<87 JLYZ�N3L24EG94AC3 V7F@EZA=EZO >BEZ2v3N<cHBE S 3N<cFB7IEGO 947POB<4J JU9;E d EGFKJLFB7 <47P�L>BEZFB3L<cFB7IAC3NA=7PO}943N<cFB7M<4EGY �7:O S EG33` S JU2;J S 9;7P2PVX <f9;E S 3N<F@7CJUYZ�N>BO@<KiK>)b 3N<L`RJLYDV7PA FB7IYZEGACE 9|JL2 J ?KJLOBFBJ > 9;EZYGE^]PJLFKJ+H 7PYG3 >B<4> VJU24EZ3m[c� <4<83$<87P2KVJ8Y 7PE 9;3 JU942;JMdmV7P<F@3�7PO �BYZ7PEG2;JLA=7PO}943$OB3L</`�XUP ��� F@3N< HKJ S 3L947P< 7Ub S 7PFB7:O}9;7P<L[ ~�<4<47 S 3NOBF@E S EG3NOKJLA=7PO}943 FB3 9;2KVJ Y 7P�N3943N24OBJ Jy> 9;EZYGE^]PJ�QSLTJL3�FB3L<s7PO@Y�J S 7P<sACJLEG<`7�� S EG7PO}9;7Z`@H 3NEZ<`3N<`AC3LAC7:O 943N<`FB7�3 S EG3N<4EGFKJLFB7 <47:2 TJL3 AC7:OB3N<Y 287#f �>B7PO}947P< x �?[

%JUYZ�N3N28EG94AC3=FB3rW JLYZF@7 FB7=�RE S �BJL<^9;7:A 38Y >BO S EG3NOKJLA=7PO}943 <87PA=7PYG�KJLO}9;7=JL3 Y >BO S EZ3LOKJLA=7PO}9;3F@3uWsJLYZFB7 �K>B24JLFB33[�� dLJUO 9;JL�N7:A�FB7PYG7 V7 JiB7eb EZ?BEGYZEGFKJLFB7 F@7 S 3NO �K�L>B2;J�QSUTJL33`}H 3NEZ<�H 3N<8<4EZ?@EZYZE 9|J�f >@7v3942KVJZY 7:�N3 S 3NO}94243NYZJLFB3�H�3L<4<;Jc9;24JLOB<8ACE 9;EZ2�H�7Lf >B7POKJU<n24J654JLFKJL<L` FB7P<8FB7�f >B7 O TJL3�>BY 9;24JLHKJL<8<47 >BA�YGEZA=EG9;77:<89;JL?�7:YZ7 S EZF@33`U3�f >B7sO TJL3 V7mH 7P24A=EG94EZFB3 O@3�W JLYGFB7`�K>B2;JLF@33[R~�<8<47 JUYZ�N3N28EG94AC3 S 3NOB<8EZ<8947n7:A >BA ?KJLYGFB7S �@7PEZ3 FB7 � S �KJU<#`B3NO@FB7 S JUFKJ � S �KJ S 3N24287P<8H�3NO@FB7cJL3 F@EZ247:EG943yFB7�7PO d E�JL2n>BA�HBJ S 3L947�[`� JLFBJ HKJ S 3L9;77:O d EZJLFB33` 247D9;EZ24Jy>BACJ � S �KJ FB3 ?BJLYZFB7Z[���< � S �KJL< S JL7PA�OB3 ?BJLYZFB7vJ >BACJ 9;J b@J 7P<8H�7 S E � S JLFBJ H�7:YZ3JUFBACEGOBEZ<f9;24JLFB3N2L`�f >B7 dUJLEsF@7PH 7POBFB7:2MFKJ S JU2;J S 9;7P2PVX <f9;E S J FB3"iK>�b@3 7 F@3�<47P2 d E8QS 3 S 3NO}9;2;J 9|JLFB3 x��?[~�O}9 TJU3 J�HB24EGO S EGHKJLY`FBEpY 7:247PO�QS J S 3LA'287PY�J QSLTJL3�JU3GW JLYGFB7 �K>B24JLFB3�V7 J H 3N<8<4EZ?@EZYZEGFKJLFB7=FB7+947P2 >@A+J24J654JLFKJ S 3LA >BACJM9;J b@J=A VJ b EZACJ ACJLEZ3L2#[m1�3L2 V7PA%<47 7P<4<4JC24J654JLFKJ V7�AC3NO@EG9;3L2;JLFKJyH�7:YZ3=JLYZ�L3N24E 9;A=3WsJLYZFB7sFB7 �RE S �KJL<#`NJ^FB>B2;J QSLTJL3c7 J�dUJ�] TJL3^A VJ b EZACJL<a< TJL3c7:<4H 7 S E � S JUFKJL<�H 7PYZ3�JUFBACEGOBEZ<f9;24JLFB3N2L`LJL<8<4EGAO TJL3I� VJ=H 3N<8<4EZ?@EZYZEGFKJLFB7vFB7�>BA >B<8> VJL28EZ3IA+JUY S 3NA=H 3N289;JLFB3MHB287i58>BFBEpf >B7�3CFB7:<47:ACH 7POB�@3CFKJI247:FB7�[

� ����� ��0 �/&��<���K��&�0 �-�,��� � ./�0�1 � # ��� ./�0�1

~�A AC7PJLFB3N<`FKJ FsV7 S JLFKJ FB7 wvm` 3i�i~�� ��EGO dN7P<f9;EG>+OB3yFB7P<87PO dN3NY d EZA=7PO}9;3 F@7�>BACJyJU2gf >BEG947:94>B2;Jf >B7 943N24OKJU<4<47 H 3N<4<PVX dL7PY J 9;24JLOB<8ACEG<4< TJU3�A >BYG94EZA$VX FBEZJ OKJG� O 947P28OB7:9#[ {^7P<89;J�OB7 S 7P<4<8EZFKJUFB7�`n<4>B28�NEZ>3A� O 9 � 7P2 d�`nJ�JU?B247ed EZJ�QSLTJU3�FB7 8 �;: �9h ^ : ���"Q ��USCO9B �� ���[5�H@24EZO S EZHBJLYm3N? 587:94EpdL3 J S >BA=HB28EZ2 7:2;J

��

Page 24: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!�� &E6 R��QF�<(,M'S,.F�R -;>:!L+I,�P '�R.T '7BC<���PQ'SR.T

J 9;7PO@FB7P2 �JL<s7P<4H 7 S E � S EZFKJUFB7P< FB7 S JLFKJMJLH@YZE S J�QSLTJU33` 247P<8H�7:EG9;JLOBFB3IJL<sOB7 S 7P<4<8EZFKJUFB7P< FB7 G^3S�+FB7 S JLFKJiB>)b 33[ �v37� O}9 � 7P2 d 7eb EG<89;7 J OB7 S 7P<8<4EZFBJLFB7 FB7 <8EZOKJUYZE^]PJL2�HKJL24J S JLFBJ�3N< 283L9;7PJLFB3N287P< 287P<47:2ldUJL287PA3L< 247 S >B28<43N<MO@7 S 7:<4<BVJL24EG3N<MJ S JLFKJ iK>�b@3m[�1RJU2;JAY J�]:7P2 7:<4<4J�<4EZOBJLYZEp]WJ�QSUTJL3$3r�i~�� ��FB7P<87PO dN3NY dN7:>�3�����^1 `KA=7PO S EZ3NOKJUFB3IOKJN� 7 QSUTJL3 �l� [���[

�s3NA=3 3r� O}9U� 7:2ld"�N>KJL28FKJ$EGOmY 3N24ACJ�QSUTJL3 <43N?B287 S JLFKJ2iB>)b 3�7+<87P>B<y247P<8H�7 S 94EpdN3L< 247Lf >@EZ<4E 9;3N<L`�Jf >KJUO 94EZFKJUFB7sFB7s7P<89;JLFB3N<�7PA S JLFBJ�243L947WJLF@3N2�V7nHB243LH�3N2 S EG3NOKJLY J�f >KJUO 94EZFKJUFB7 FB7 iK>)b 3N<0f >B7 HBJL<4<4JLAO@3M243L947WJLFB3L2#[� S >B<f9;3 S 3LACHB> 9|J S EZ3NOKJUY HBJL2;JMJ ACJLO >@9;7:ORQSLTJU3MFB3N< 7:<89|JUFB3N< 9;3L24OKJ EGO d EWVJZdN7:Y�947 S O@E �S JLA=7PO}9;7 J^EGACHBYG7PA=7PO}9|J QSLTJL3vFB7P<8<;J JL2gf >BE 9;7:94>B2;J^OBJ�� O 947P28OB7:9#[`�s3NO S YG>BEZ> � <47�f >@7 7:<4<4J JU2gf >BEG947:94>B2;JO TJL3 V7c7:< S JLY VJZdL7PY�HKJL24JIJLHBYZE S JL2s7PA >BACJM247:FB7�FB7P<8<;JCACJL�NO@EG9;>@FB7�[

�v<XY JUYZ�KJL<yFB3 � O}9U� 7:2ld HKJU2;J�JG� O}9;7P28OB7:9=EGACHB>@YZ<4EG3NOKJL24JLA J S 28E�J�QSUTJL3�FB7 3N> 9;2;J�JU2gf >BEG947:94>B2;Jf >B7MH 7P28ACE 9;EG<4<47 J+9;2;JUOB<4A=EZ<8< TJL3 A >BYG94EZA$VX FBEZJm[�1�JL2;J 947P2^>BACJ JL2lf >@EG9;7D9;>B24J+FB7M�}JU2;JLO}9;EZJ+FB7 G^3S�f >B7uY 3N<4<87 H 3N<4<PVX dN7:YRJUHBYZE S JL2 OKJN� O 947P28OB7:9c7:2;J+O@7 S 7:<4<BVJL24EG3oY J�]P7:2 S 3NA f >B7 7P<8<;J+O@3 dUJ JU2gf >BEG947:94>B2;JY 3L<4<47�A+JLEG<m7P< S JLY VJ dN7PY?[�� <4<83 <4EG�NOBE � S J S 24EZJL2n>@A+J JL2gf >BE 9;7D9;>B24J 3NOBFB7v>BA 243L947WJLF@3N2�Y 3L<4<47 S JLHKJZ]�FB7�NJL2;JLO}94EZ2vJ/G^3S�$FB7 9|JLO}9;3L<KiK>)b 3N<�f >KJUO 943N<^7Ub@EG<894EZ247:A OB3N<^HB28EZO S EZHKJUEZ< 243L947WJLF@3N247:<^FKJo� O}9;7:24OB7D9M[~�<8<;JCO@3 dUJIJL? 3N24FBJL�N7PA%YZ7LdL3N> J=>@A+J <83NYZ>RQSUTJL3I?KJL<87WJLFKJIOKJ=JL�N287P�}J�QSUTJL3IFB7iK>)b 3N<L[

MO P �� ���;:ZOZ^ : ��� Q ��USCO9B ��e`B3N> {^E��Q� 7P2 d�` V7c>BA <47:2ld E8QS 3+3�Y 7:247 S EZF@3=H 3N2 >BA S 3NO 58>@O 943CF@7 283 �947WJLF@3N247:<�f >@7XY 3L24ACJLA >BAA=7P<8AC3 F@3NA$VX OBEZ3+JLFBA=EZOBEG<8942;JU94EpdN3m`�3 FB3LA VX OBEZ3C{^E��Q� 7P2 d 3L>"{�� ���?[�JLFBA=EZOBEG<89;24JLFB3N2sFKJC287PFB7 FB7 �BOB7 JU< S Y�JL<8<47P< FB7 <47:2ld E8QS 3N<#`�JL< JL�N287P�}J�QSUT3N7P< FB7 iK>)b 33` 7yJL< 247P�L2;JL<F@7M7PO S JLACEGOB�KJLA=7PO}943 JL<4<83 S E�JLFKJU<cJ 7P<8<;JL< S YZJL<4<87P<#[u� EZFB7:O}9;E � S J�QSUTJL3 FB7P<8<;JL< JL�L247P�NJ�QSLT3N7:<�V7cY 7PE 9|JJ 9;2;JMd�V7P<cF@3 S JLA=H 3 ���� 6 � �D[ �L>��-Q ��USCO9B � E FB3 S JL? 7 QS JLYZ�@3 �i1 `�A+JLEG<v7:<4H 7 S E � S JLAC7:O}9;7MOB3 <8>B? �S JLA=H�3 {��B� 1 6NM O PRQ ��US " >�� � = >@O �;: EU`mFB7 �KO@EZFB3 7PA ���� ``3Gf >KJLY+V7 247:<4H 3NOB<BVJZdN7:Y H 3N2cY J�]:7P2M3ACJLH 7WJLA=7PO}943 FKJL< JL�L247P�NJ�QSLT3N7:< 7PA�>BA��s3LACH 3N289;JLA=7PO}9;3 H 3N2�� V326N= ��6 >D[ � �Df ^ SCO9> �`1�h�W Ee[^< 283L9;7PJLFB3N287P< FB7cEZO@�N247:<4<43IFB3MF@3NA$VX OBEZ3 {��+FB7LdL7PA�<47:2 S JLHBJ�]P7:< F@7 EGFB7PO}94E � S JL2 >BA iK>)b 3CEGOBFBE��d EGFB>KJLYGAC7:O 947�` FB7��KOBEZO@FB3 J+JU�N247:�}J�QSLTJU3+FB7 iK>)b 3N<cJNf >BJLY�7:YZ7 H�7:28947PO S 7�[^~�<8<;J S Y�JL<8<4E � S J�QSUTJL3+<87P2KVJY 7:EG9;J S 3NA�?BJL<47 7PA�EZOmY 3N28A+J QSLT3N7:<�FB7 >BA�3N>=ACJLEZ< S JLA=H�3N<RFB3N< S JL? 7 QS JLYZ�@3N<��i1 ` � � 1�7 ��{c1 FB3N<HBJ S 3L947P<L[n{^7ed EZFB3MJ 7:<4<4J S JL2;J S 9;7:2WVX <89;E S J 7:<4<87P< S YZJL<4<8E � S JLFB3N287P< < TJL3 S �KJLACJLFB3N<sFB7 S YZJL<4<8E � S JLFB3N287P<� >BYG94E � S JLA=H�3$6NV X �Y:ZO �����B� ��� �dEe[R{^7PO}9;283�FB3�{^3LA VX OBEZ3 {�� 3L< HKJ S 3L9;7:< < TJL3 S Y�JU<4<4E � S JUFB3N< 7:AS Y�JL<8<47:<RFB7n<47P2 d E8QS 3�FB7sJ S 3N28FB3 S 3NA 3 S V3LFBEZ�N3 FB3 S JLA=H�3v{��B� 1�`U7:<4<47:< S YZJL<4<8E � S JLFB3N287P<a< TJL3 S �KJLACJ �F@3N< FB7y�s3NA=H�3N2f9|JLA=7PO}943c���N287P�}JUFB3 6 � �Df ^ SCO9> �� hCh �9ha^ : � ��W�� Ee[;� 7P<8<;J=JL2gf >BE 9;7:94>B2;J)`3f >KJLOBFB3

�'

Page 25: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!�� &E6 R��QF�<(,M'S,.F�R -;>:!L+I,�P '�R.T '7BC<���PQ'SR.T

>@A'>B<8> VJL28EZ3 JL<8<4EZOBJLO}9;7 FB3�<87P2 d EfQS 3�7:OSd EZJL2 HKJ S 3L9;7:<#`�<87P>B<IHKJ S 3L9;7:< H 3 FB7:A S JL24287P�}JU2 >BA ��_�f >B7CEZOBF@E^f >B7=>BA+J$JL�N287P�}J�QSUTJL3 A+JLEG<�HB24EG3N24E 9 VJL28E�J FB7:H�7:OBFB7PO@FB3�FB3 <87P2 d EfQS 37f >B7NY 3NEm7P<8H�7 S E � S JLFB3OBJ S 3NO}9;2;J 9|J�QSUTJL33[

��EZ�N>B24Jc�g� [��mV`{^3NA$VX OBEG3 {^E��Q� 7:2ld�[�942KVJZY 7:�N3vJL<4<83 S E�JLFB3 J >BACJ S Y�JL<8<47`H�3 FB7m<47:2 S 3NOBF@E S EG3NOKJLF@3 HBJL2;J A+JUO 947P2 S 3NOmY 3N28ACEGFKJLFB7 S 3NA

3v<47:2ld E8QS 3 S 3LO 942;JU9;JLFB33[�� <4<83^H 3 FB7`<47:2�Y 7:EG943v>@94EZYGE^]WJUOBFB3 � <47�3N<�JLYG�N3N24E 9;A=3N<�W JUYZFB7`�K>B2;JUFB3v3L>cW JLYGFB7F@7s�RE S �KJL<L`L7m9;7PA 3 3N? 587D9;E dN3�F@7nFBE Y 7P287PO S E�JL2aJL<aJL�N287P�}J QSLT3N7:<�FB7 S YZJL<4<87P<aFB7n<87P2 d EfQS 33[ V~�EZA=H�3L289|JUO 947287P<8<;JLY 9|JL2:f >B7 7:<4<47 7P<lf >B7PACJ�FB7 S 3NO}94243NYG7 FB3 >B<4> VJU24EZ3�O TJL3�247Lf >@7P2 S 3NO �K�N>B24J�QSLT3N7:<=J.dUJLO�QS JLFKJU<#`287P<87P2ldUJ FB7M287 S >@24<43L< 7 OB7P�N3 S EZJ�QSLTJU3 HKJL2;J S JLFKJ iK>�b@3m` S 3NA=3 OB38� O}9U� 7P2ld�[c� <8<438Y J�] F@3 {^E��Q� 7P2 d>@A+J JL2lf >@EG9;7D9;>B24J A+JLEG< <4EGACH@YZ7P<+FB7 EZA=HBYZ7:AC7:O 9;JL2#` A=7POB3L< S >B<f9;3N<4J S 3LACHB> 9|J S EZ3NOKJUYZA=7PO}9;7$7�`H 3N2f9|JLO}9;3m`B7P< S JLYWVJZdN7:Y `K<47:OBFB3=A+JUEZ< JLHB283NHB28E�JLFKJ �J:� O}9;7:24OB7D9M[

�vOKJLYZEG<47:AC3N<�3 S JL<43vFKJ 947PYG7LY 3NOBEZJ OBJ�� O}9;7:24OB7D9�HKJL24JvA=3N<8942;JL2�JL<aFBEpY 7:247PO�QS JL<�7PO}9;287 J�f >KJUYZEZFBJLFB7F@7=<87P2 d EfQS 3 ?KJL<87WJLFKJ 7PA iB>)b 3$7=J ?KJL<87WJLFKJ 7PA JL�N247:�}J�QSUT3N7P<�FB7�iK>)b 3N<L[o�vJ2Gc3 � ?KJU<47WJUFKJ 7:AiB>)b 33` S JUFKJy9;24JLOB<8ACEG<4< TJU3 FB7�dL3w]^247:<47:2ldUJM<47P>@< 247 S >B24<83N<#`@7�Y J�]�3L< 243L947WJLF@3N247:<s9;7:247PA�>BA�7P<f9|JLFB3HBJL2;J S JLFKJ S 3NOB7Ub TJU33[n��VJ OKJ ?KJU<47WJUFKJ H 3N2 JL�L247P�NJ�QSLTJL3m` 943 FB3L<s3N< iK>)b 3N< 9;7:YZ7eY;�3NOBE S 3N<`H�7:289;7:O S 7:A J>@A+J^A=7P<8A+J S Y�JL<8<47�`Sf >B7 9W�7:A�3N<mHKJU2 �JLA=7:94243N<�F@7 Gc3 �M7:<4H 7 S VX � S 3N<#` OB7 S 7P<8<KVJL28EZ3N<`J^>BA�942KVJZY 7:�N3cFB7dL3w]�[���>BA iB>)b 3+FB7�9;24JLOB<lY 7:2P�7:O S EZJ=FB7yJL2lf >@EpdN3L<vO TJU3 V7 H�3L<4<PVX dN7:Ya> 9;EZYGE^]PJL2 3N< 247 S >B28<43N<�JLYZ3 S JLF@3N<JU3N< iK>)b 3N<cFB7 947PYG7LY 3NOBEZJm[ 1�3N2 V7PAJL<cYZEG�}J�QSLT3L7P<�O TJL3 9W�7:A247 S >B28<43N<�287P<47:2ldUJLFB3L< EGOBFBE d EGFB>KJLYGAC7:O}9;7�`JU<4<4EGA>BACJ YZEG�}J�QSUTJL3 H 3 FB7MEGO}9;7P2 Y 7P28EZ2^7:A 3N>@942;JL<L`k3N> <47i54J)` S JL<43 3 O�V>BA=7P283 FB7M>B<4> VJL24EG3N<cHKJL<8<;JL2

� &

Page 26: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!�� &E6 R��QF�<(,M'S,.F�R -;>:!L+I,�P '�R.T '7BC<���PQ'SR.T

F@7 S 7:28943 YZEGACE 9;7 H 3 F@7PA 3 S 3N24287P2`FB7P�L2;JLFKJ QSLT3N7:< OKJuf >KJUYZEZFBJLFB7 FKJL<`YZEZ�NJ�QSLT3N7:<#[��$JL<sH 3N2`3N>@9;283 YZJLFB3JMACJLO >@9;7:ORQSLTJU3CFB7�7:<89|JUFB3N< V7 287PFB>m]PEZFBJm`@9;3L24OKJLO@FB3CH 3N<8<WVX dL7PY�JIJLHBYGE S J�QSLTJL3MOBJX� O}947P24O@7:9M[

� 7P< S 3NYZ�BJyFKJL< S YZJL<4<87P<sF@7�<47:2ld E8QS 3N<�f >B7v7eb EZ<f9;7PA 7:A�>@A�F@3NA$VX OBEZ3 {��IFB7PH 7POBF@7^<43NA=7PO}947�FKJJUFBACEGOBEZ<f9;24J�QSLTJL3 FKJ 247:FB7�[�� 7P< S 3NYG�KJMFB7�f >KJLEG< < TJL3I3N< HKJU2 �JLA=7:94243N< F@7-G^3S� JUYZ3 S JLFB3L< HKJL24J S JLFKJS Y�JL<8<47Z`;f >BJLYaJI�L2;JLO >BYZJL24EGFKJLFB7^FBJL< S Y�JU<4<47:<#` 7�f >KJLYcV7�3=ACJLH 7WJLA=7PO}943=F@3N<RiK>)b 3N< OKJL< FBEpY 7:247:O 947P<S Y�JL<8<47:<CO TJU3"<87P�N>B7 >BA HBJLFB2 TJU33[ ~�<8<;J5Y JUYG9|J�F@7$HKJUFB243NO@E^]WJ QSLTJL3�V7 >BA HB283N?BYZ7:A+J�HBJL2;J JLYZ�L>BOB<F@3NA$VX OBEZ3L<�{��5f >B7+H 3 FB7PA <87P2 S 3NOB<f9;EG94>kVX F@3N<�FB7+ACJLEZ<�FB7=>BA FB3NA$VX O@EZ3 JLFBA=EZO@EZ<8942;JU94EpdL33[+1�JL2;J<83NYZ> S EZ3LOKJL2 7:<4<4J FB7�� S E �7PO S E�Jm`�3 �i~�� � FB7 �BOBEZ> JLYG�N>BACJL< S Y�JL<8<47:<=F@7 <47P2 d E8QS 3�HBJLFB2 TJU3 HBJL2;J7f >B7JU< S Y�JU<4<47:<�HB>BFB7:<4<47:A 9;7:2c7#f >BEpdUJLY �7PO S E�J+7:A3N> 9;2;JU<c247PF@7P<�f >B7IO TJL3 Y 3N<8<47PA J 247PF@7=H 7PYZJ f >KJLY�3iB>)b 3 7PO}9;283N>�OB3CFB3NA$VX OBEG3={��I[ ~mYZJL< < TJL3C3 ~m�76 �#)[ ��� O9B<: ��� ��> Ub ^ � O �ghCE @��a7 3o��� 6/���<X ���� > Ub ^ � O �ghCE �� [

HB24EGO S VX HBEZ3C? VJL<4E S 3 FB3 ~m��V7M<8EZA=HBYZ7:<#[�~�b EZ<8947PA FB3NEZ<v9;EZH 3N<vFB7M<47:2ld E8QS 33`�J S YZJL<4<87M7eb HB247:<4<4J~m��` f >B7 <47:2KVJ S 3NACH 3N<f9|J FB3L<-iK>)b 3N<MFB7 JLHBYZE S J�QSUT3N7P< S 2PVX 9;E S JL< 7PA'247:Y�J�QSUTJL3�JL3�JU9;24JL<433` S 3NA=3�JL<JUHBYZE S J�QSUT3N7P<y7PA'947PA=H�3 247WJUY `�7 J S Y�JL<8<47 287P�N>@Y�JL2iW ~ 6 � ��<:�� P > U: EU`�f >B7 <47:24E�JUA'3N<�iK>)b 3N<MFB7������`K942;JLOB< Y 7P2P�7PO S E�JIFB7 JL2gf >BE dN33`K7 � ACJLEZY 7:9 S [

�REZ�N>@2;Jc�g� [ax3V`�REGY�JL<s~`� 7_W ~�[ S 3LOBFBE S EZ3NOBJLAC7:O}9;3 FB7n942KVJZY 7:�N3vFBJ S YZJL<4<87nFB7n<47:2ld E8QS 3c~m� H�3 FB7`<47:2REZA=HBYG7PA=7PO}9|JLF@3 F@7�dsVJL24EZJL<

ACJLOB7:EZ24JL<#[ � �KYZJ F@7C<4JBVX FKJ FB3$243L947WJLFB3L2 H 3 FB7C<87P2 FBEpd EGFBEZFKJ 7:A/F@>KJL<#`�>BACJ V7=FB7P<f9;EGOKJLFKJ$JL3N<iB>)b 3N< ~m��``7�J"3L>@9;24J JL3N<LiK>)b 3N<8Ws~�[n�vACJ"ACJLOB7:EZ24J FB7$9;2;J 9|JL2=3N<LiK>)b 3N< ~m��FB7$A+JUOB7PEG2;JH@24EZ3L24EG9KVJL24EZJ V7MJLHBYGE S JUOBFB3+>@A 7:< S JUYZ3NOKJUAC7:O 943 FB7 �BY�JL<vFB7 <4EGACH@YZ7P<vHB24EG3N24EGFKJLFB7Z`�3L>�<47 54Jm` 3 iK>�b@3

�+

Page 27: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!�� +�4 :=<�P

~m��9;7:A�HB28EZ3N28EZFKJLF@7 <43N?@247 3iK>)b 3iWs~�[N{^7P<89;J ACJLOB7:EZ24J�3iK>)b 3 ~m��O TJL3�V7 JU942;JL<4JLFB3�H�7:Y�J^7:<4H 7P2;JF@3N<^HKJ S 3L9;7:<cJ+<87P247:A 942;JLOB<8ACE 9;EGFB3N<#[v~�A S 3NO}9;24JLHKJL2f9;EZFBJm`�7Ub EZ<8947MJ+H 3N<4<8EZ?BEGYZEGFKJLFB7�FB3 iK>�b@3 ~m�A=3NOB3LH�3NYGE^]PJL2 J >@94EZYZEp]WJ�QSUTJL3 FB3L<k247 S >B24<83N<B5BVJ�f >B7`7POmf >BJLO}9;3�7Ub EZ<894EZ287PA�HBJ S 3L947P<�OKJ �KY�J ~m��` HBJ S 3L947P<FBJ �KYZJCW ~�O TJL3 < TJL3 9;24JLOB<8ACE 9;EZF@3N<#[:��3N>@942;J <43NYG>RQSLTJU33`�<87P28E�J 3$>@<43 F@3 � � G 6 � �<O h@fg: ��� ��^ O � X �<X �<O �ghCEe`�f >@7�Y J�]�>@A+JyJU9;28EZ?B>BEfQSLTJL3 H 3NOBFB7:2;JLFKJ FKJ S JLHKJ S EZFKJLF@7�FB7 9;2;JUOB<4A=EZ<8< TJL3yFB3 7PO@Y�J S 7�FB7<4JBVX FBJ FB7vJ S 3N24FB3 S 3LA JL< �KY�JL<`~m�"7�W ~�[ 1RJU2;Jy�NJL2;JLO}94EZ2mJ�Gc3 �IFB3L< iK>�b@3L<s~m�"O@7P<4<4J JU9424EZ?@>BE8QSUTJL3F@7 247 S >B24<83N<mH�3LOBFB7P24JLFKJm`RV7s247P<87P2 dLJUFB3 �J S Y�JL<8<47 ~m��>BACJ�f >KJLO}9;EGFKJLFB7 J^ACJLEG<RFB7 287 S >@24<43L<�f >B7 7:Y�JH@247 S EZ<4Jm[`{^7P<89;JXY 3L24ACJMJ S Y�JL<8<47 ~m��O TJU3=<4JU9;>@2;JI<47P>@<�247 S >B28<43N<L` 7 S 3NOB<87#f �>B7PO}9;7:AC7:O}9;7 S 3NOB<87P�N>B7�NJL2;JLO}94EZ2 Gc3 �+FB3N< iK>�b@3L<#[m1�3L2 7eb 7PA=HBYG33` S JL<43M3N< iK>)b 3N< ~m� 247:<4>BY 9;7:A�7:A �.v�� FBJ S JLHKJ S EZFBJLFB7F@3"7:OBY�J S 7�`�tZv��'FB7:<89;7 H 3 FB7 <87P2=247P<87P2 dLJUFB3 HKJL24J J �KYZJ ~m� 7$3 247:<89;JLO}9;7 <47P28E�J JL<4<83 S E�JLF@3�J�BY�J8W ~�[k� J�]:7POBFB3 JL<8<4EGAr`�V7 3ZY 7P247 S EGFB3 JL3N< iK>)b 3N<�~m� 3 FB3N?B283 FB3N<�247 S >B28<43N<�OB7 S 7:<4<KVJU24EZ3L< HBJL2;JJUY S JUORQS JL2s>BA ?KJLE b 3IJU9;24JL<433[��v<4<8EZA `BHKJL24J 7P<4<87P< iK>)b 3N< JM247:FB7�7P<89;JM<47PA=HB287 F@7P< S 3NOB�N7:<894EZ3NOKJUFKJm`A=7P<8AC3Xf >KJLO@FB3CEG<4<83=O TJL3C<87i54JcdN7:24FKJUFB7 7:A 3N>@942;JL< S Y�JL<8<47P< FB7�<47:2ld E8QS 33[

� S YZJL<4<87vF@7 <87P2 d EfQS 3u�^� V7 >@A�7P<lf >@7PACJyACJLEZ<�7:Y�JL? 3N2;JUFB3cFB7 �N7P287PO S E�JL2mJL<`FBE Y 7P247:O}9;7P< S YZJL<4<87P<F@7=<87P2 d EfQS 33[I{^7:O}9;243 FKJ S YZJL<4<87X�^� 7eb EZ<f9;7:A 3N>@9;24JL<�f >KJU94243 S YZJL<4<87P< FB7IHB24EG3N24EGFKJLFB7Z` S JLFBJ >@A+JS 3NA�<87P>B<mHKJU2 �JLA=7:94243N<�FB7 G^3S�I`L7 <8>KJL<�287P<47:2ldUJL<mFB7 287 S >@24<43L<#[�� 7:>=A=3 FB7PYG3�FB7 <87P2ld EfQS 33`}FBE Y 7P287PO}9;7F@3 ~m� f >@7iY 3N24O@7 S EZJC>BACJ+�}JU2;JLO}9;EZJC7:<89;28EG9;Jm`�Y 3L24OB7 S 7 >BACJ+7Ub@H 7 S 9|JU94EpdUJ+FB7 <47P2 d E8QS 3 3L?@9;EGFKJCH 3N2>@A FB7:947P24A=EZOBJLFB3 9;2KVJ Y 7P�N35f >KJLOBFB3"7eb EZ<f9;7:A A=3NA=7PO}9;3L<=F@7 S 3NOB�N7:<89;EG3NOKJLA=7PO}9433[ � HB243LH�3N<f9|JF@3"A=3 F@7PYZ3�F@7$<87P2ld EfQS 3 FKJ S Y�JL<8<47C�^� FB7��KOB7 f >@7 J 7PO}9;287P�}J FB3 HKJ S 3L9;7 V7 <47PA=HB287 287WJLYGE^]PJLFKJS 3NA JLY 9|JIHB243N?BJL?BEZYGEZFKJUFB7�`BF@7P<4F@7cf >B7 3I9;2BVJZY 7P�N3CO TJL3=7eb S 7:FKJ JM9|J b@J S 3NO}9;24JU9|JLFBJm[ � JL<43C3 iK>�b@37Ub S 7PFBJ$J+9;J b@J S 3NO}9;24JU9|JUFKJ J 7PO}9;287P�}J FB7M<87P>B<�HKJ S 3L947P<cO TJL3 V7MACJLEG<��}JL24JLO}9;EGFKJ S 3LAJ A=7P<8A+JJUYG9|J H@243N?KJU?BEZYGEZFKJLF@7�[

� ����� � ��� .

�vJ JL2lf >@EG9;7D9;>B24J${^E���� 7P2ld�`a3N< HKJ S 3U9;7P<y< TJL3 ACJL2 S JLFB3N< OKJ ?�3N28FKJ FB3 FB3LA VX OBEZ3 {��I`aJU942;JMdmV7P<F@3 S JLA=H�3 {��B� 1 [ {^7PO}9;283 FB3 FB3NA$VX O@EZ33` 3 9;24JU9|JUAC7:O 943 FB3N<�HKJ S 3U9;7P< V7_Y 7PE 9;3 FB7 J S 3N28FB3 S 3LA 3S JLA=H�3={��B� 1�[

�?�

Page 28: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!�� +�4 :=<�P

� 9;7 S OB3NYG3N�NEZJr�$1��� 6NV X �Y:ZO\[ ?>@:A>CBD> ��]_^a`�����QcbdOe:ABDfgO �ghCE V7=>BACJ 947PO}9|J 9;EpdUJ FB7=<43NYG> S EG3NOKJL2c3H@243N?BYG7PACJ FB3$7Ub S 7P<8<43�F@7CHB283 S 7P<8<;JLA=7PO}9;3$OB7 S 7P<8<KVJL28EZ3 HKJL2;J 3 243L947WJLA=7PO}9;3 FB7=HKJ S 3L9;7:<#[ � S 3 �A >@9|J�QSUTJL3 FB3L<+HKJ S 3L9;7:<oY 3NEvJ�<43LYZ>RQSUTJL3�7:O S 3NO}942;JLFKJ)[ 1RJL24J*Y J�]:7P2 J S 3NA > 9|J�QSUTJL3�V7 EGOB<47:24EGFB3 OB3FBJU9|JL�L2;JLACJr�i1)>BA 2BV3L9;>BYG3�JLO}9;7:<MFB3 S JU?�7 QS JLYG�B3G�i1 f >B7 Y JU2KVJ�J�EZO@FB7eb@J�QSUTJL3�FKJ 9|JU?�7:Y�J FB7 7:O �S JLA=EZOB�KJUAC7:O 943 �$1���I[ � A A=7P<8AC3=2KV3U9;>BYG3CH 3 F@7 <87P2vEZOB<87P24EGFB3=7PA FBEpY 7:247:O 947P< iK>)b 3N<#` Y J�]:7POBFB3J JL�N287P�}J QSLTJL3 FB7LiK>)b 3N<#[ ��JL< 247:FB7P<c� 1� ��`RJCf >KJLYZEGFKJLFB7MF@7C<87P2ld EfQS 3 V7I3�Y 7:247 S EZFKJ FB7=A+JUOB7PEG2;JO TJL3 A >BE 9;3yFBEpY 7:247PO}947�[�� <4<83MH�3L2gf >B7^3 2BV3L9;>@YZ3:�$1���C947PA 3 A=7P<4A=3 S 3NACH 3N2f9|JLA=7PO}9;3 FB3 S JLACH 3{��@� 1 ` FB7��KOBEG2�3 S 3LACH 3N289;JLA=7PO}9;3 FBJ JL�N247:�}J�QSUTJL3 FB7-iB>)b 33[ �s3LAC3 7:A >@AFB3NA$VX O@EZ3o� 1� ��3S JL? 7 QS JUYZ�B37�i1 O TJU3�V7+ACJLEZ< S 3NOB<4>@YG9|JUFB3�HKJL24J 3 7:O S JUACEGOB�KJLA=7PO}9;3m`R3 S JLACH 3A���� `�f >B7 7:<89 VJS 3NO}9;EGFB3 OB3 S JU?�7 QS JLYG�B3 �i1 `�9|JLA ?nV7PA O TJL3 <47:2KVJ S 3LOB<4>BY 9|JLF@3 HKJL24J FB7 �KO@EZ2cJ HB287 S 7PF �7:O S EZJ F@3 HKJ �S 3L9;7Z[�~�O 94247D9|JLO}9;3m`k3 2KV3L94>BYZ3 � 1����947PA >BA S JLA=H�3 ~ +^1 6 7eb H 7P24EGAC7:O}9|JLY E�f >B7iY 3NE�FB7P<f9;EGOKJLFB3HBJL2;JI247:HB247:<47PO}9;JL2�JIHB287 S 7:F �7PO S E�J=FB3=HKJ S 3U9;7�`K947POBFB3CJIAC7:<4ACJ:Y >@ORQSLTJL3Nf >B7 3 S JLACH 3={��B� 1 FB3H@243L943 S 3NYZ3:�i1�[

^>@942;J A+JUOB7PEG2;J+FB7M3ZY 7P247 S 7:2�f >BJLYZEGFKJLFB7 F@7M<47P2 d E8QS 3 7:A 247:FB7P<_� 1����V7IJU9;24J.d�V7:<cFB3 >B<43 FB7�i9 V>BOB7:EZ< � � 1� ��` 3N<8��@1�<�6N]_^a`���� QcbdOe:NBDf ����= ^ :Tf EU`vHKJU2;J S JUFKJ S Y�JU<4<47�F@7�<47P2 d E8QS 3m[ � S 3NO �<87#f �> �7PO S E�J V7CJ FBEpd EG< TJL3 FB3 7:OBY�J S 7=7PA dsVJL24EG3N<�3N>@94243N< 7POBYZJ S 7:<ud EZ2f9;>KJUEZ<#`�>BA HKJU2;J S JLFKJ S YZJL<4<87�[� JUFKJ 9 V>BOB7PYRFB7P<8<47=H�3 FB7 9;7:2�FBEpY 7:247PO}947P<c9;3NH 3NYG3N�NE�JU<�7M>@94EZYZEp]WJL2v247 S >B28<43N< 7P<8H�7 S VX � S 3N< HKJL24J S JLFKJS Y�JL<8<47�F@7 <47:2ld E8QS 3 JL<4<83 S E�JLFBJm[ �v<+FBE Y 7P287PO}9;7:<+9;3NH 3NYG3N�NE�JU<=F@3N<C9 V>@OB7PEG<+F TJL3">BACJ�iK7eb EG?BEZYGEZFKJLF@77rdN7P28<;JU94EZYGEZFKJLF@7 JLF@ACEGOBEZ<f9;2;J 9;EpdUJ f >B7�H 3N<4<8EZ?BEGYZEG9;J >@A >B<83 ACJLEZ<C7 � S EZ7PO}947�FKJ 247:FB7�` FB7ed EZFB3 J7:OB�N7:OB�KJL28E�J FB7^942KVJZY 7:�N33[0�vYDV7PA�FBEG<4<43m`B3N<s9 V>@OB7PEG< FB7^FBE Y 7P287PO}9;7:< 943NH 3NYZ3N�LE�JL<L`�f >B7cHBJL<4<4JLA%H 3N2 FBE��Y 7:247:O 947P< 7PO@Y�J S 7P< 7cO V3N<L`BH 3 FB7:A%FBEG247 S EZ3LOKJL2s>@A iK>)b 3IACJLEZ<nHB24EG3N24E 9 VJL28EZ3 HKJL2;J >@A%7PO@Y�J S 7cAC7:OB3N<S 3NOB�N7:<894EZ3NOKJUFB33`N3N>IJ 9 V7 A=7P<8AC3c287P<47:2ldUJLFB3cHBJL2;J^7:<4<;J S Y�JL<8<47 FB7 <87P2ld EfQS 3 �.v��?[���3cA=7P<8AC3v9;7PA=H 33`J S JLHKJ S EZFKJUFB7^FB7cH 3 F@7P2 FB7��KOBEG2s9;3 FB3N< 3L< O V3N< FKJM3N28EZ�N7:A�JL3MFB7P<f9;EGOB3MH�3L<4<4EG?BEZYGEG9;JyJM~�OB�N7:OB�KJL28E�JF@7 �a2KVJ Y 7P�N33[%�RJLO}943"J ~�OB�N7:OB�KJL28E�J�FB7C�a2KVJZY 7:�N3 f >BJLO}9;3 3*� 1� � <47:2 TJL3 ACJLEZ< 7Ub 9;7PO@<;JLA=7PO}9;7JU?�3N28FKJLFB3L< OB3N< HB2KV3 b@EGAC3L< S JLH VX 9;>BYG3N<#[

� �

Page 29: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

� �%� �� ��� ���"�

� ������� ����� ��� � ������� � � ���� ������ � �

� � &

� ������� ��� ���� !��0d���

^<I243L947WJLF@3N247:<=7:A >BACJ�247PF@7 O TJL3 � 3L24EZ7:O}9|JLFKJ�J S 3NOB7eb TJL3 Y J�]:7PA 3 7PO S JLA=EZOB�KJUAC7:O 943�FB3N<HBJ S 3L947P< JLOBJLYZEG<;JLOBF@3 3 S JL? 7 QS JLYZ�@3 �i1 [ � JLFBJ 243L947WJLFB3L2+9;3NACJ�>BACJ�FB7 S EG< TJL3 EZO@FBEpd EZF@>KJLYZA=7PO}947<83N?B287_f >KJUY FB7LdL7y<87P2 3MHB2BV3Zb EZA=3M<;JLY 9;3MFB3IHKJ S 3L9;7c?BJL<47PJLFB3=OKJMJLO VJLYGEZ<87^FB3 S JL? 7 QS JLYZ�@3XY 7:EG9;J H�7:YZ3283L9;7PJLA=7PO}9;3r�i1 [R� JLFKJ 283L9;7PJLFB3N2_dN7P28E � S J 3 7:OBFB7:247 QS 3�FB7P<f9;EGOB3�FB3$HKJ S 3U9;7o�i1 7+F@7 S EGFB7of >KJUYn3H@2KV3Zb EZA=3M243U9;7WJUFB3N2 JI<47P2 7:O S JLA=EZO@�KJLFB33[

� Y >BO�QSLTJL3cFB7 7:O S JUACEGOB�KJLA=7PO}9;3�H�3 FB7 S 3NOB<4EGFB7P24JL2�ACJLEZ<aHKJL26�JLAC7D9;283N<�FB3�f >B7 3c7:OBFB7P287 QS 3yFB7:<��94EZOB3m[ FB7 HBJ S 3L947P<L[�� 9;7 S OB3NYG3N�NE�J�� 1� �26NV X �Y:IO-$ [ ?>@:N>CBD> �;]_^a`���� QcbdOe:NBDfgO �ghCE�H 7P28ACE 9;7 7:O S JLA=EZO@�KJL2HBJ S 3L947P< FB7I>BACJ8Y 3L24ACJ 7�� S EG7PO}9;7=7�`�JL3 A=7P<4A=3 9;7:ACH 33` S 3NO@<4EZF@7P2;JU2 3L>@9;283N<�HKJL2 �JUAC7D9;243L<�JLYDV7:AF@3$7:OBFB7P287 QS 3 FB7:<89;EGOB33[=~�<89;J 947 S O@3NYZ3N�LE�J+H 7P28ACE 9;7 S YZJL<4<8E � S JL2c3N<iK>)b 3N< FB7IHKJ S 3L9;7:<�7PA S YZJL<4<87P<6 ��> Ub ^ � O �gh%� 1�XgOeS@^ � ���3B � " � ^��� �v��~`� E�7=7:O S JUACEGOB�KJL2^3L< HBJ S 3L947P<�<47:�N>BOBF@3$<8>KJ S Y�JL<8<47Z[N�$1���"V7 >BACJ�<83NYZ>RQSUTJL3�f >B7 S 3LAC7 QS 3N> S 3NAC3�HB243NH 3N<f9|JL<�H@243NHB28EZ7D9 VJL28E�JL<aFB7 7PA=HB287P<;JU<�H�7:<gf >BEZ<4JLOBFB3>@A+J <43NYG>RQSLTJU3$FB7 S 3LAC38Y J�]:7P2 3$283L9;7PJLAC7:O}9;33`a3N> 7PO S JLACEGOB�KJLA=7PO}9433`�FB3N< HKJ S 3U9;7P< FB7=A+JUOB7PEG2;JACJLEG< 7�� S EG7PO}9;7 x �?[ ��< H@243NH 3N<89;JL< EGOBE S E�JLEG<�d EZ<;JMdUJLA/JLH 7POKJU< FBEGACEGO >@EZ2c3 947PA=H�3$FB7+HB283 S 7P<8<;J �A=7PO}943=O@3=7:O S JUACEGOB�KJLA=7PO}9;3MF@3N< HKJ S 3U9;7P< <8>B?B<f9;EG94>BEZO@FB3=J:Y >@ORQSLTJL3IFB7�283L9;7PJLAC7:O}9;3MH 7PY�JcY >BO�QSLTJL3

Page 30: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!.!�� � � <=> 2-34��8'SR -;&

F@7 S 3LA >@9|J QSLTJL3 FB7 HBJ S 3L947P<L[ � 1� � S 3NA=7 QS 3N> J <47P2=HKJLF@243NOBEp]WJLF@3�H 7PYZ35�i~�� ��JLH V3N<C>@A+JH@247P<8< TJL3CFB7�7PA=HB247:<;JL<�f >B7 7P<f9|JMdUJLA FB7:<47PO dL3NYpdL7POBFB3+<4>KJL< HB2BV3NHB24EZJL< H 7P<gf >BEG<;JL< OKJ�VJL287WJ � � � [

��<4>B?B<f9;E 9;>BEfQSLTJL3 F@3 243L947WJLA=7PO}943+H 7PY�J S 3NA >@9|J�QSUTJL3 H 3N<4<8>BE dUJLO}9;JL�N7PO@<#[��HB283 S 7P<8<43 FB7y243L947��JUAC7:O 943 H 3 FB7 <47P2cF@7 �KOBEGFB3 S 3NAC3 J HB243 S >B24J+7PA >BACJC9|JU?�7:Y�J+H 7PYG3 7POBF@7P247 QS 3 FB7 F@7P<894EZOB3 HBJL2;JF@7P< S 3N?B28EZ2cHKJL24J 3NOBFB7M7:OSd EWVJ � YG33[ 1a3N2c<4>BJ8dL7#]Z`RJ S 3NA >@9;J�QSLTJL3 V7 F@7 �KOBEGFKJ S 3NA=3 3 HB243 S 7:<4<83rf >B7>@<;J+>BA 2KV3U9;>BYG3+HKJL24JCEGOBFB7eb@JL2v>BACJ=9|JU?�7:Y�JCF@7 S 3LA >@9|J QSLTJL3 f >B7 FB7:947P24A=EZOBJL2KVJ=3+FB7:<89;EGOB3 FB3+HKJ �S 3L9;7Z[�1a3N2 7:<4<;J S JL2;J S 9;7:2WVX <89;E S J$J S 3NA >@9|J�QSUTJL3 V7CFBEG9;J S 3NAC3$A+JUEZ< 7 � S EZ7PO}947 f >B7+3�283L9;7PJLA=7PO}9;3H 3NEG< 287#f >B7:2�A=7POB3N< HB283 S 7P<8<;JLA=7PO}9;3m[��)?@>B< S J+OKJM9|JL? 7PYZJ=OB7 S 7:<4<KVJU24E�JCJL3=AC7 S JLOBEG<4A=3IFB7y283L9;7PJ �A=7PO}943 �i1�V7 S 3NA=HBYZ7Ub@J+H�3L2gf >B7 7Ub EZ<8947IJ+OB7 S 7P<8<4EGFKJLFB7MFB7 <47 3N? 9;7P2v3 7PO S JLA=EZOB�BJLAC7:O}9;3 HKJU2;J+3H@2KV3Zb EZA=3 283L9;7PJLFB3N2�f >@7 9;7PA S 3NA=3 7:OBFB7P287 QS 3 3 ACJLEG3N2vH@247 �)b@3 FB7 247PF@7�[y~m<f9|J S JL2;J S 9;7:2WVX <f9;E S J�V7F@7POB3NA=EZOBJLFKJyF@7 � � ��<: = � � )�V ^ :NBDfgO �gh��3[��vJ S 3LA >@9|J QSLTJL3yH�3N2`2KV3U9;>BYG3N<sJy?B>B< S J <47�7LY 7:94>KJ S 3NA>@A V>BO@E S 3yJ S 7P<4<83 �JyA=7PA V3N28E�J^9;7:OBFB3 S 3NAC3 7PO}942;JLFKJy3 2KV3U9;>BYG3y7 S 3NA=3y<4JBVX FBJ JyEGO}9;7P2 Y J S 7v247:Y�JU94EpdUJJU3yHB2BV3Zb EZA=3�<;JLY 9;3�FB3 7PO S JLACEGOB�KJLA=7PO}9433[�1�JL2;J�f >B7vEG<8943y<87i54J�H�3N<8<WVX dN7PY V7 OB7 S 7P<8<KVJL28EZ3 J S 247:< S 7PO}9|JL2>@A 2KV3L94>BYZ3 JL3 HKJ S 3L9;7Nf >B7 V7CFB7:OB3NA=EZOKJUFB3 FB7 S JL? 7 QS JLYZ�B3A� 1���I[a~�<89;7 S JL? 7 QS JLYZ�@3A�$1���I`a3N>2BV3L9;>@YZ3G�$1��� 6WV = ] Q � ^a`����FEe`R7:O dN7PYG3NHKJ 3 HKJ S 3U9;7o�i1 7Z`�H�3L289|JUO 9433`R<87 247eY 7P287 J >BACJ S JLACJLFKJJU?KJLE b 3 FKJ S JLACJLFKJu�i1�[S��<4<8EZA ` F@7 �KOB7 � <87�>BA FB3NA$VX O@EZ3_� 1��� S 3LAC3y>BA FB3NA$VX OBEG3��KJL?BEGYZEG9;JLFB3�JS 3NA >@9;JL2�2BV3L9;>BYG3N<��$1���I[� HKJ S 3L9;7��i1"247 S 7:?�7 >BA�2KV3L94>BYZ3^OBJ^7PO}9;24JLFKJ^FB3�FB3NA$VX O@EZ33` OB3c243U9;7WJUFB3N2F@7 7:O}9;2;JUFKJm` 7PO dN7:YZ3NHBJLOBFB3=3CHBJ S 3L947��i1 [ ~�<8947y2BV3L9;>BYG3I<KV3 V7 287:94EZ2;JUFB3=JL3I<;JLEG2 FB3CF@3NA$VX OBEZ3:� 1� �H 7PYG3 283L9;7PJLFB3N2 FB7 <4JBVX FKJ)[ �a3 FB3N< 3L< 243U9;7WJUFB3N247:< FB3 FB3NA$VX OBEG3A�$1���"< TJL3�FB7:OB3NA=EZOKJUFB3N<�] ^a`����QcbdOe:NBDf � >@X : �� 6?��@� Ee[�{^7PO}9;283�FB3�FB3LA VX OBEZ3r� 1����3N< HBJ S 3L947P<y< TJL3 S 3NA >@9;JLFB3N< JL3 EGO dmV7:< FB7<87P287PA 243L947WJLF@3N<#[0�v<4<8EZA `}>BA ��@� 247 S 7P? 7PO@FB3 >BA HBJ S 3L947 S 3NA�2BV3L9;>@YZ3 S 3NO@<4>BY 9|J�>BA+J^9;JL?�7:Y�JcFB72BV3L9;>@YZ3N<�f >@7I947PA S 3NA=3 <;J@VX FKJ JU<cEZOmY 3N28A+J QSLT3N7:<�<43L?B247M3 HB2BV3Zb EZA=3+<4JLYG9433` 7 3 dUJLYG3N2�FB3 H@2KV3Zb EZA=32BV3L9;>@YZ33` S 3NAC3 OKJU<y287PFB7N����� 6(�3��� �3BDf ?> �3>'� � ^ ����� ��-V >�� � Ee[X��<8<4EGAr`�3 S JL? 7 QS JLYZ�B3 �i1�<BV3 V7JUOKJLYZEG<;JLF@3"6 Y >BORQSLTJU3 FB7 283L9;7PJLAC7:O}9;3 E OKJ+7:O 942;JLFBJ+7 OKJ+<4JBVX FBJCFB3 F@3NA$VX OBEZ3 � 1��� 7 O@3 EZO}9;7:24EG3N2F@3yFB3LA VX OBEZ3^3 S 3L24247 J S 3NA >@9|J�QSUTJL3�FB7 2KV3L94>BYZ3L<#[�~�<4<87v7:O S JUACEGOB�KJLA=7PO}9;3c947PA JLYG�N>BACJL<�dUJLO}9|JL�L7POB<<83N?B287 3=A V7:9;3 FB3 942;JLFBE S EG3NOKJLY�FB7�7PO S JLACEGOB�KJLA=7PO}943=F@7 FBJU9|JL�L2;JLACJL<��i1�V� 3"7:O S JLA=EZO@�KJLA=7PO}9;3 H�3 FB7 <47:2NY 7:EG9;3 H 3N2 S 3NA > 9|JLFB3L247P<L` EZA=HBYG7PA=7PO}9|JLF@3N<M7PA �KJL28F �sJL2479;3N28OKJLOBFB3I3=HB243 S 7:<4<83CACJLEZ<s2KVJLHBEGFB3 �� J JU9;28EZ?B>BEfQSLTJL3CFB7 2BV3L9;>BYG3N<�H 3 FB7 YZ7edUJL2^7PA S 3LO 9;J 3N>@942;JL<^EGOmY 3N28A+J�QSUT3N7P<vHKJL24J FB7:947P24A=EZOBJL2^J

� �

Page 31: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!.!�� � � � 94;, F�&=4

S Y�JU<4<47-6 �R~n�REmFB3 HKJ S 3U9;7�<87PA 3NOB7:2;JL2mFB7:A+JUEZ<m3 HB283 S 7P<8<;JLA=7PO}9;3m`@H 3NEZ<mEZ<f9;3 <47:2KVJy287WJLYGE^]PJLFB3>BA+J V>BO@E S JcdL7#]��

� J JU9;28EZ?B>@E8QSLTJU3yFB7 S Y�JU<4<47:< H�7:24A=EG947�Y 3N2 QS JL2`HKJ S 3L9;7:< J <47:�N>BEG247PA S JLACEGOB�B3N<n7P<8H�7 S VX � S 3N<L`BH�3L<��<4EZ?@EZYZE 9|JLO@FB3 7:O S JLA=EZO@�KJLA=7PO}9;3IH 3N2 H�3LY VX 94E S JL<s3N> <4EGACH@YZ7P<8AC7:O}9;7c7PO@�N7POB�BJL24EZJIF@7�942KVJZY 7:�N3 �

� ������� � � ����d&���

�2BV3L9;>BYG3 �$1��� V7 >BA�EZF@7PO}9;E � S JLF@3N2 S 3NA�<4EG�NOBE � S JLF@3CYG3 S JLYk<43NA=7PO}947�` EG<4<83+<4EG�NOBE � S JXf >B7 JEGOmY 3N28A+J�QSUTJL3 S JL24287P�}JUFKJ H�3L2^7PYG7 9;7PA dUJLYZEGFKJLFB7 <43NA=7PO}947MOB3 7POBYZJ S 7cf >B7I3 HKJ S 3L947M<47M7PO S 3NO}9;24Jm[� <8<43C<47 FB7LdL7 H 3N2gf >B7 3C2BV3L9;>@YZ3 V7 A=3 FBE � S JLFB3IJ S JLFBJC243U9;7WJUFB3N2 H�3L2�f >KJUYk3+HKJ S 3L9;7�HKJU<4<;J)[ ~�<4<;J94243 S J V7�Y 7PE 9|JyJU9;24J.d�V7:< FB3c��h����~ 6 4 � ) :*6 >D[ ]_^a`����C��> Ub ^ � O �gh � �;: :��Ee`mf >B7$V7�3 S 3NO}9;7�V>@FB3 FKJ7:O}9;2;JUFKJ FKJL<n9|JL? 7PYZJL<s� ��� 6 �*�3"#$N:N>�$/4�6 ] �#��E`7��\�� 698��3BD>�,�O �gh ]_^a`����;V ^<[ EU[� S 3NO 58>@O 943 FB7��h����~�< 7^<8>KJL< JU<4<43 S EZJ�QSLT3L7P< A V>@9;>KJU< S 3NOB<894EG94>B7PA�J HB2BV3NHB24EZJ 9;JL?�7:Y�J F@7 S 3LA >@9|J QSLTJL3 F@3N<���@� <#[

%2BV3L9;>BYG3r� 1� ��`aF@7 �KOBEGFB3 7:A �.t�� `cV7 S 3NOB<f9;E 9;>kVX FB3 FB7 �wt ?BE 9;<L` f >B7=< TJL3$FBEpd EGFBEZFB3L<c7PA t�vH@24EZA=7PEG243N< ?BE 9;< HKJU2;J�J EGFB7PO}9;E � S J QSLTJL3�FKJ��R~n��`�3N< ��?BE 9;< <87P�N>@EZO}9;7:<M< TJL3�3N< FB3 S JLA=H 3 ���=�`ACJLEG< �I?BEG9�f >B7IEGOBFBE S J 3 �KAFKJ HBEGYZ�KJ+F@7=2BV3L9;>@YZ3N<L` <47:2KVJ 7eb HBYZE S JLF@3 JLFBE�JUO 947�`k7I3N<1@ 247:<89;JLO}9;7P<EGOBFBE S JLA�3 ���� 6 ��O-,�� � > ]�OeS � E FB3 HKJ S 3L9;7Z`Qf >B7 FB7edN7:A<47:2^7eb HBYGE S EG9|JUFB3N< OB3 2KV3U9;>BYG38� 1���I`5BVJ:f >B7 3X�����FB3 S JL? 7 QS JLYZ�B3X�i1 O TJL3I<47P2BVJ S 3NOB<8>BYG9;JLFB3=7 F@7 S 287PA=7PO}9|JUFB33[

��EZ�N>B24Jc�g�l� [��wVm�$V3L94>BYZ3 � 1���I[^<y942P�7:< ?BEG94<yF@7 ���=�247:HB247:<47:O 9;JLA'J HB24EG3N24EGFKJLFB7IFB3 HKJ S 3U9;7�[A ?BEG9 FB7 �KA FB7+HBEGYZ�KJ FB7

2BV3L9;>@YZ3N<y7eb EZ<f9;7 HKJL24J7f >B7 <47 H 3N<4<4J7Y J�]P7:2 3Gf >B7 <47 S �KJUA+J�FB7+7PA=HBEZYG�KJLA=7PO}9;3$FB7 2KV3L94>BYZ3L<#`�3N>� �

Page 32: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!.!�� '���K�� '7! < 4

<87i54Jm`�f >KJLOBF@3 >BA HKJ S 3L9;7 V7 247 S 7:?BEZFB3CH�3L2v>BA ��@��` 7P<8947 H 3 FB7 S 3LO 947P2vA+JLEG< FB7 >BA 2BV3L9;>BYG33[��Y >@ORQSLTJL3 FB3 ?BE 9��CFB7 �KA FB7^HBEGYZ�KJ V7�EZO@FBE S JL2�f >KJUY V7�3 V>@YG9;EGAC3c2BV3L9;>@YZ3 H@247P<87PO}9;7cO@3MHKJ S 3U9;7�` 7�7:<89 VJ287PYZJ S EG3NOKJLFB3 S 3NA�JL< 3NH 7P24J�QSLT3L7P<�f >B7�H�3 FB7PA%<47P2 7eY 7:9;>BJLFKJL< S 3NA%3N< 2KV3L94>BYZ3N<L[

�v3=287 S 7P? 7P2 >BA HKJ S 3L947c3M243L947WJLFB3L2 3NH@9|JMH 3N2 >BACJ FKJL< 942P�7:< H 3N<8<4EZ?@EZYZEGFKJLFB7:<sFB7^942;JU9;JLA=7PO}9;3F@7 >BA 2KV3L94>BYZ33V �A[;>D[ �m` �A[ X��Df �N7 ��<b ^<[ �3[� S 3NACJLOBF@3 [;>D[�` FB7D9;7:24A=EZOKJof >B7 3 243L947WJLFB3L2�247D9;EG2473 2BV3L9;>@YZ33` 7IJUH V3N<cEZ<8<43 JLOBJLYZEG<47 3 HKJ S 3L947M<47PAJ�f >B7PYG7M2KV3L94>BYZ3m` 9;7:OBFB3 3 HKJ S 3L9;7M3N> 9;243 2BV3L9;>@YZ3 3N>O TJL33[u S 3NACJLOBFB3 [ X��Df�` EZO@<47P287M>BA 2KV3L94>BYZ3 O@3 HKJ S 3U9;7�`k�L7P2;JUYZA=7PO}9;7 7:<4<87 S 3NACJLOBFB3 V7MFBJLFB3 OKJ7:O}9;2;JUFKJyFB3 FB3NA$VX O@EZ3_� 1���I[) S 3LA+JLO@FB3��<b ^<[�`N94243 S J�3y2BV3L9;>@YZ3�7eb EZ<f9;7:O 947�H 3N2m3N>@942433` 7P<8<47 9;EZH 3F@7CJ QSLTJL3 <87P2KVJ �N7:2;JLYGAC7:O 947 7PO S 3NO}9;24JLFKJ OB3 EZO}9;7:24EG3N2�FB3 FB3LA VX OBEZ3 � 1� ��`k3NOBFB7=J HKJL<8<;JL�N7:A FB3HBJ S 3L947�7PO}9;287y283L9;7PJLFB3N287P< J S JU24247D9|JM7PA�9;243 S JU< F@7 2BV3L9;>@YZ3N< J S JUFKJM7POBYZJ S 7Z[

S 3NACJLOBFB3 [ X��Df$H�3 FB7 <87P2MFKJUFB3Gd VJU24E�JU<idN7L]P7P<CJLO}9;7:<:f >B7 <47i54J�FBJLFB3 >BA�[;>D[�`�EG<4<837Y JL2KVJS 3NA f >@7�J HBEZYG�KJyFB7�2KV3L94>BYZ3N<`9;7:OB�KJ ACJLEZ<nFB7^>BA�OkVX dL7PY?[m{^7P<89;J A+JUOB7PEG2;J V7�H�3N<8<WVX dN7PY?`mf >B7cFB7:O}9;243F@3 F@3NA$VX OBEZ3 � 1���I` 7eb EG<89|J >BA 9 V>BOB7:Y�f >B7=JL�N287P�N>@7M��~`�s< S 3NA >BAA=7P<8AC3 F@7P<894EZOB3m`k3N> H�7:YZ3A=7PO@3N< S 3NA'FB7P<f9;EGOB3N<MHB2BV3Zb EZA=3N<#`�287PFB>m]PEZO@FB3 3�O^V>BAC7:243�FB7 7:O}9;2;JUFKJL<MOKJL< 9;JL? 7PY�JU<X� 1��� 7:A>@A+JM247:FB7�f >B7 S 3NO}9 V7:A�A >BEG943N<s9 V>@OB7PEG<#[

� ������� � (�� � � � �

G^>KJLO@FB3C3 ��@��247 S 7:?�7 >BA�HKJ S 3L9;7 S 3NA�3C2BV3L9;>@YZ3N� 1���I` JI9;JL? 7PY�J:�\�� 6I8��3BD>�,�O �gh�] ^a`����V�^<[ E V7+J S 7:<4<;JUFKJ�HKJL2;J$?B>B< S J�FB7 f >KJLYnFB7LdL7 <47P2 3 9;24JU9|JLA=7PO}943 9|JLO}943�FB3�HKJ S 3L9;7of >BJLO}9;3�FB32BV3L9;>@YZ33[� 2KV3U9;>BYG3�V7 7Ub 942;J@VX FB3 FB3 S JL? 7 QS JUYZ�B3C�$1����7 EGOBFB7eb@JL2BVJ Jo�\�� 7PA ?B>B< S J FKJ 7PO}942;JLFKJ287LY 7:247PO}947+J 7P<8<47=2KV3L94>BYZ3m[i� �\�� H 3 FB7 9;7:2c7P< S 3NH 3$YG3 S JLY�J >BACJ EZO}9;7:2lY J S 7M<43NA=7PO}947�`a3N> H�3 FB7947P2v7P< S 3NH 3+�NYG3N?KJLY�JI9;3 FB3+3o � �_` FB7:H�7:OBFB7 <83NAC7:O}9;7 FBJ S 3LO �K�N>B24J�QSLTJU3+7 FBJL<vO@7 S 7:<4<8EZFKJLF@7P<cFB3F@3NA$VX OBEZ3m[

� 7PO}9;24JLFKJ FKJu�\ � EZOBFBE S J 3 S 3LA+JLO@FB3/6 [;>D[��3[ X��Df�7 �<b ^<[ E�f >B7^<47:2KVJ 7Ub 7 S > 9|JLFB3MO@3 2KV3L94>BYZ3m[��7PO}9;24JLFKJ FKJ 9;JL?�7:Y�J_�\ � dUJLE�H�3 FB7:2 7P<f9|JL2 JU<4<43 S EZJLFKJ Jy>BA+Jy7PO}9;24JLFKJ FKJ 9;JL?�7:Y�Jy����� 6 �*�3"#$:N>�$/4�6 ] �#��Ee`�f >B7$FB7:947P24A=EZOBJ5f >KJLY 3 HB2KV3 b@EGAC3 <;JUYG9;3m`nEGO 947P2 Y J S 7 FB7 <;JBVX FKJm`s7 OB3.dN3"2KV3L94>BYZ3 FB3f >KJUFB2433`K<87�7P<8947_Y 3L2 3 S JL<43m[

���

Page 33: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!.!�� & � B84I" 9� +�<=4 4 :=<�P

� ������� � #�� � �� ���� � ��� .

�FB3LA VX OBEZ3��$1��� V7 3 S 3NO658>BO}9;3 F@7���@� S 3NO}9;243LY�JLFB3L<`H 3N2m>BA A=7P<8AC3yJLFBA=EZOBEG<8942;JLFB3L2#`wf >B7H 3 FB7�7P<89;JL2 3�Y 7P287 S 7POBFB3=<47:2ld E8QS 3CF@7 `D^gB � `<> ���e` 3N> FB7�EZO}9;7:24YZEG�}J�QSUTJL3 FB7�247:FB7P<L[

�REZ�N>@2;Jc�g�l� [qt�Vn{^3LA VX OBEZ3c� 1� � 7_��@1�<#[~�A >BA FB3NA$VX OBEG3o�$1���I` JL<^�R~n�s<�<47 FBE Y 7P287PO S E�JLA�FB7y>BA S EG2 S >@EG9;3Nd EZ2894>KJLY�7PA >BACJC287PFB7

F@7 S 3NA >@9;J�QSLTJU3 F@7 S EZ2 S >BE 9;3N<L` S 3NA=3 J�287PFB7������*`}H 7PYZJ�JL�N247:�}J�QSUTJL33[��vH�7:<;JL2mFB7 >BACJ���~`��H 3 F@7P2<87P2`JL<8<43 S E�JUFKJcJc<43NA=7PO}9;7 >BA iK>)b 33` 3N>I<47 54Jm` >BA iB>)b 3 947P2�<47:>CH@2KV3NHB28EZ3 S 3NO 58>BO}9;3 FB7 2BV3L9;>BYG3N<�OB3F@3NA$VX OBEZ3m` EG<4<83=O TJL3 V7c�N7P24JLYZA=7PO}947^>B<;JUFB33` 5BVJcf >B7�>BACJ FKJL<�dUJLO}9|JU�N7POB< F@3o�$1����V7�JMJL�N287P�}J QSLTJL3F@7�dsVJL28EZ3N<�iK>�b@3L<n7:A JLH�7:OKJL<m>BACJ���~`��` H 3 FB7POBF@3 JL<8<4EGA�247:FB>3]PEG2`J�f >KJUO 94EZFKJUFB7vF@7 7:<89;JLFB3N<`OB3N<283L9;7PJLFB3N287P<nEZO}9;7:24OB3N<nFB3 F@3NA$VX OBEZ3u� 1���I[�� F@7 �KOBEfQSLTJL3 FB7 iB>)b 3 V7v?KJU<89|JUO 947 iK7Ub VX dN7:Y OB7:<4<87 S JL<833`F@7PH 7POBFB7:2KVJ=<43NA=7PO}9;7�FB7 S 3NA=3=3N��@��FBJI? 3N28FKJMFB3IFB3NA$VX OBEG3 FB7:947P28ACEGOKJ 3Xf >@7 <87P2BVJ=>BA iK>)b 33[V~"247P�L2;J��N7P24JLY3f >B7 3c� 1���MFB7LdL7v<87P2`>B<;JLF@3yHKJU2;J�JL�N287P�}JL2�iB>)b 3N<[email protected]:OBEZ7:O 947P<nFB7 >BA+JcA=7P<8A+J<8>B?B287PFB7Z`n3N>�O TJL3�<BV3�FB7 >BACJ A=7P<4ACJ <8>B?B247:FB7�`mACJL<cf >B7 S 3NA=HKJL2894EZYG�KJLA >BACJ A=7P<8A+J S Y�JL<8<47F@7+<47:2ld E8QS 33[ ~�<4<4J�JL�N287P�}J�QSUTJL3 FB7+A V>BYG94EZHBYG3N< iK>�b@3L<udUJLEm<47:2 7PO S JLA=EZOB�BJLFKJ JU9;24J.d�V7:< FKJ 247PF@7+FB7J S 3N28FB3 S 3NA�3N<�2KV3U9;>BYG3N<#`N7 S 3NOB<f9;EG94>BEZ2 TJL3^>BACJ^A=7P<4ACJc��~`��[}~�<4<4Jy�R~n� O TJL3cF@7:9;7:24A=EZOKJ^<83NA=7PO}9;7H 3N2v3NOBFB7 7:<4<87P< iK>)b 3N<c< TJL3 7:O S JLA=EZO@�KJLFB3N<L` ACJL<v9;JLA ?nV7:A FB7:947P24A=EZOBJ Jof >B7 S Y�JL<8<47 FB7 <47P2 d E8QS 3H 7P2f9;7:O S 7:A�7P<4<87P< iK>)b 3N<#[

���

Page 34: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!.!�� + '*) + - � /�01�2�"# 4�-���� )!��4 8=<�P :

� 3N<�A V7:943 FB3L< 942;JLF@E S EG3NOKJLEG< FB7 S EG2 S >@EG9;3Xd EZ2f9;>KJLY?` S 3NA=3IOKJL<v247PF@7P<v947PYG7LY;�3NOBE S JL< 3N> S 3LAC3=OKJL<287PFB7:<c�����*`�J JL�L247P�NJ�QSLTJL3$O TJL3 V7CH 3N<4<PVX dL7PY `K5BVJrf >B7 J$JL�N287P�}J�QSUTJL3 OKJ 3N28EZ�N7:A O TJL3 JLFBE S EZ3NOBJ EGO �Y 3L24ACJ�QSLTJL3 HBJL2;JCf >B7I3N<iK>)b 3N< <47i54JUA EZFB7:O 94E � S JLFB3N<c7IFB7:A >BY 9;EZH@YZ7eb@JLF@3N<cOKJ <;J@VX FKJ FKJ 247PF@7�[o�$1���I` H�3L2s3N>@94243yY�JLFB3m` O TJU3 7POmY 287PO}9|J 7:<4<87^HB243L?BYZ7:A+Jm` H 3NEZ<n3N< iB>)b 3N< 7P<f9 TJL3MEGFB7PO}94E � S JLFB3N<nH�7:YZ3H@243L943 S 3NYZ3MFB7 S JLA+JUFKJ �m`3f >B7 OKJMA+JLEG3N24EZJyFKJU<�dL7#]:7P< V7�3X�i1 [

� ������� �������� ������������� ������� � . �

��@1�V7�3 S 3NO 58>@O 943+FB7 2KV3U9;>BYG3N< 247:<47P2 dUJLFB3N<vOB3N< 243L947WJLF@3N247:<�JL3=YZ3LOB�N3IFB3=FB3NA$VX OBEG3N� 1� �f >B7vFB7 �BOBEZ2 TJL3if >KJLY S JUACEGOB�B3 <47P2BVJ H 7P2 S 3N2428EZFB3m` 7vH�7:YZ3_f >KJLY 3 243U9;7WJUFB3N2`EZFB7:O 94E � S JL2KVJyJuf >B7���~`�H 7P2f9;7:O S 7 3 HKJ S 3L9;7Z[ � FBEpY 7:247PO�QS J S 3LO S 7:EG9;>BJLY�7:O 94247 ��~`� 7 ��@1 V7�F@EpYfVX S EZY FB7�<87P2 FB7��KOBEZFBJm`�R~n� 247:HB247:<47PO}9;J 3 S 3NA=H�3N2f9|JLA=7PO}943 FB3$HBJ S 3L947Xf >BJLOBFB3$7P<4<87 S �@7P�}J$JL3$283L9;7PJLFB3N2L`�3r��@1 V7=JS 3NA ?BEGOKJ�QSUTJL3IFB7c9;3 FKJL< JL< ��~`�s< FB3N< 243U9;7WJUFB3N247:<#[

� 942;JMdmV7P< FB3N<���@1�< 3IJLFBA=EZO@EZ<8942;JLF@3N2nF@3MFB3NA$VX OBEG3yH 3 F@7P2KVJiY JZ]P7P2 J FBEpY 7:247PO S E�J QSLTJL3 F@7c<47P2 d E8QS 37:O}9;247�<87P>B< S YGEZ7:O 947P<L[�� FB7:947P24A=EZOBJ�QSLTJL3 FKJ S Y�JU<4<47cF@7c<47P2 d E8QS 3IH 3 F@7c<47P2�Y 7:EG9;J H�3N2s3N>@9;24J A+JUOB7PEG2;JJUYDV7PA FKJ�f >B7:Y�J f >B7 >@9;EGYZE^]PJ ��~`�s< S 3NA 247:<47P2 dUJL<$F@7 287 S >B24<83N<8Y 7PEG9;JL< 7PA S JLFKJ 283L9;7PJLFB3N2L`�3N><87i54Jm`�FB7=ACJLOB7PEG2;J <87PA=7PYZ�BJLO}9;7IJL3�M O PRQ ��US.[M~�<4<4J$FBE Y 7P247:O S EZJ�QSLTJU3 FB7I<47P2 d E8QS 3$7MHB24EG3N24Ep]WJ�QSUTJL3 FB7iB>)b 3N<cO TJL3 <87P2BVJ8Y 7:EG9;J+JU942;JMdmV7P<cFB7 287P<87P2ldUJ FB7 287 S >B24<83N<cOB3N<c283L9;7PJLFB3N287P<#` 7PY�JC<47P2BVJoY 7PE 9|J JU942;JMdmV7P<F@3�7:O S JLA=EZO@�KJLA=7PO}9;3 FB7 iK>)b 3N< HKJL24J�3N> 9;243L< 7:OBY�J S 7P< FKJ 247:FB7�[%~m<8<47:<�7POBYZJ S 7:< H�3 FB7PA <87P27Ub S YZ>@<4EpdL3N<aHKJL2;J iK>�b@3L<�HB28EZ3N28EG9KVJL24EG3N<#`W3L> H 3 FB7PA�<87P2a7POBYZJ S 7:<Jf >@7n< TJL3 <4>B? � >@9;EGYZEp]WJLFB3L< S 3NA 9;2KVJ Y 7P�N3F@7 S 3LO 94243NYG7�7 �N7P287PO S E�JLA=7PO}943 FKJy287PFB7Z`@7 S 3NOB<87#f �>B7PO}947PA=7PO}9;7 S 3NA 7eb S 7:FB7PO}9;7�FB7v247 S >B28<43N< HBJL2;J<87P2 >B<4JLFB33[

� FB7:947P24A=EZOBJ�QSLTJL3 FB7rf >BJLY���@1 <87P�N>BEG2KVJ >BA 9;2KVJ Y 7P�N3)V7rY 7PE 9|J OKJ�7:O 942;JLFBJ�FB3�F@3NA$VX OBEZ3m`sJF@7 S EG< TJL3 H 3 F@7�<47P2 ?KJU<47WJUFKJ�7:A >BA S 3NO 58>@O 943 FB7 EZOmY 3N28A+J QSLT3N7:< HB247:<47:O 947P< OB3 HKJ S 3L9;7Z` S 3LAC3S JL? 7 QS JUYZ�B3 FB3 H@243L943 S 3NYZ3"FB7�247:FB7G�i1 `s3N> H�3 FB7 JU9 V7�YG7LdUJL2 7:A S 3NO}9|J J�EGO 947P2 Y J S 7�7:A f >B7�3283L9;7PJLFB3N2�247 S 7P? 7P> 3 HKJ S 3L9;7Z[i� 3 S JL<83 FB7 >@94EZYZEp]WJL2 EZO)Y 3N24ACJ�QSLT3L7P<�F@3 S JL? 7 QS JLYZ�B38�i1�` 3 7:OBFB7P287 QS 3F@7 FB7:<89;EGOB3=H�3 FB7 <47P2v>B<;JUFB3+HKJU2;JCH@24EZ3L24E^]PJL2 3I9;2KVJ Y 7P�N3 f >@7_dUJLE�HKJL24JC>BACJIA VJ�f >BEGOKJI7P<4H 7 S VX � S Jm`S 3NA=3 H 3N2I7eb 7:ACHBYG33`s>@A <47:2ld EZFB3L2oh���� 1 [`{^7 A+JLO@7PEZ24J�<47PA=7PYG�KJLO}9;7Z`s35�i1�FB7 3N24EG�N7PA H�3 FB7

��'

Page 35: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!.!�� + '*) + - � /�01�2�"# 4�-���� )!��4 8=<�P :

�REG�N>B24Jc�g�g� [��mV`{^3NA$VX OBEG3:� 1��� 7y~�OB�L7POB�KJU24E�JMFB7��a2KVJZY 7:�N33[<87P2 >B<4JLFB3 HKJL24J S Y�JL<8<4E � S JL2 7�H@24EZ3L24E^]PJL2+3 942KVJZY 7:�N3 3N24EG�NEZO VJU24EZ3 FB3 A=7P<4A=3 <47:2ld EZFB3L2#`^JU<4<4EGA 3942KVJZY 7:�N3�F@7 EZFBJ"7rdL3NYG9;J"<87P2 TJU3�7PO S JLA=EZOB�BJLFB3N<CHKJL2;J 247 S >B28<43N< 7:<4H 7 S E�JLEG<C3N> FB7PFBE S JLF@3N<#[ � JL<H 3 FB7�� <47 EG2�JLYDV7PA FB7:<4<47:< S JLA=H�3L<�FB3 S JL? 7 QS JUYZ�B3 �i1�` 7 S Y�JU<4<4E � S JU2�3 iK>�b@3 ?BJL<47PJLFB3 7PA S JUACH 3N<F@3 S JL?�7 QS JLYG�B3 FB3yH@243L943 S 3NYZ3�FB7 9;24JLOB<8H�3N2f9;7Z` S 3NAC3�3y��{c1�7 3�� � 1 [m S JUACH 3�FB7vH 3N2f9|JcFB7P<8<47:<H@243L943 S 3NYZ3N<�<8EZ�NO@E � S Jm`}OKJyACJLEG3N24EZJ�FKJL<�dN7L]P7:<#`B>BACJ�JLHBYGE S J QSLTJL3�7P<8H�7 S VX � S Jm` S 3LAC3 �}949;H ` 7 � ACJLEZY?`N3N>d EGFB7P3 S 3NO)Y 7P2P�7:O S EZJm[�~mO}9 TJL3�H 3 F@7`<87P2aFB7P<87i5BVJZdL7PY)f >@7n<83NAC7:O}9;7`3N<k9;2KVJ Y 7P�N3N<�FB7`>BACJ S 7P2f9|J JLHBYZE S J�QSUTJL3> 9;EZYGE^]:7PA >BA)7POBYZJ S 7 7:<4H 7 S VX � S 33` <47i54J^H 3N20f >B7:<89 T3N7P<mFB7 7:OB�N7PO@�KJL24EZJ�FB7 942KVJZY 7:�N3c3N>MH 7PY�JU<RHB2BV3NHB24EZJL<S JL2;J S 9;7:2WVX <89;E S JL<`FB3 A=7PEG3_YiVX <4E S 3 FB7v942;JLOB<8ACEG<4< TJL3 FB7:<4<87^7POBYZJ S 7Z`mf >B7vH�3 FB7�3ZY 7P247 S 7:2s?KJLE b 3 JU942;JL<833`A=7P<8AC3_f >B7v947POB�BJ H�3L> S J ?KJLOBFKJ)` EG<4<83 H 3N2gf >B7vHKJL2;J S 7:289;JL< JLH@YZE S J�QSLT3L7P<m3 JU942;JL<83 V7 S 2PVX 9;E S 33[��m7i54J7:<4<87c7eb 7PA=HBYZ3 OKJM�REZ�L>B2;J_�g�g� [ax3` 3 7POBYZJ S 7�FB7^ACJLEZ3N2`?KJLO@FKJm``V7�A+JLEG<n> 9;EZYGE^]PJLFB3 H�3N2sJLHBYGE S J QSLT3N7:<sFB7942;JLO@<lY 7P2P�7PO S E�J=FB7 FKJUFB3N<#` S 3LAC3C� 989;HQ` 7�� A+JUEZY `)Y 9;H 7[ � ��:$N:A>�$ [ � ��U` ACJL< S 3NA=3CHKJU<4<;JCH�3N2�dsVJL24EG3N<283L9;7PJLFB3N287P<M<87P>�JU9;24JL<43�V7 EGOB<;J 9;EZ< Y JU9 V3L24EZ3 HKJL24J�JL<IJLHBYGE S J�QSLT3N7:< A >BY 9;EGA VX FBE�JL<L[���VJ�3 7:OBY�J S 7 FB7 �

� ?BHB<#`�O TJL3 3�Y 7:247 S 7C>@A+J ?KJLO@FKJ HBJL<4<4JLO}9;7=�N2;JLO@FB7�`aA+JUEZ<^H 3N2�O TJL3 <47:2y> 9;EZYGE^]PJLFB3 H 7PYG3N<�3N>@9;283N<iB>)b 3N<�7 O TJL3=9;7P2�dsVJL24EG3N< <;JLY 9;3N<L` V7 HB287LY 7P2PVX dL7PY�HKJL24J+J=942;JLO@<4A=EZ<4< TJL3=FB7_d EGFB7P3 S 3NO)Y 7P2P�7:O S EZJL< 7udN3�]�`H 3NEG< 3CJ 9;2;JU<43I<47:2KVJIAC7:OB3N2#[

1a3N2 V7:A JLO}9;7P<CFB7 >@9;EGYZEp]WJL2 3L< ��@1�<L` 7P<f9;7P<=FB7edN7PA <87P2 S 3NO �B�N>B2;JUFB3N<#`nEZ<8<43)V78Y 7:EG9;3 JU942;JMdmV7P<F@EZ<89424EG?B>BE8QSUTJL3 FB3N<=2KV3L94>BYZ3L<=OBJ"247:FB7�[ � FBEG<89;28EZ?B>@E8QSLTJU3 F@3N<C2BV3L9;>@YZ3N< S 3LOB<4EG<89;7 7PA S 3NO �K�N>@2;JL2I3N<

� &

Page 36: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!.!����*6 $ &?< 1 -0/132-34*@J4 4 : <�P

�REZ�L>B2;Jc�l�g� [ax3Vm~�OB�N7PO@�KJL24EZJ=F@7_�a2KVJ Y 7P�N33[283L9;7PJLFB3N287P<�FB7IACJLOB7PEG2;J f >B7I7P<8<47:< <47 54JLA S JLHKJ�]:7P< FB7MEZFB7:O}9;E � S JL2c>BAHKJ S 3U9;7IH�7:YZ3 <47:>"2BV3L9;>@YZ3OBJ EGO 947P2 Y J S 7IFB7I7PO}942;JLFKJ)`RJL<8<43 S EWVJ � YG3 J >@A+J ��~`�R����@1�7IFB7D9;7:24A=EZOKJL2�J EGO 947P2 Y J S 7I7I3$2BV3L9;>@YZ3F@7 <4JBVX FBJm[ ~�<4<;J S 3NO �K�N>B24J�QSLTJL3 9;7:A f >B7 <47:2NY 7:EG9|J�7:A 9;3 FB3N<I3N<I283L9;7PJLFB3N287P<IH�7:28947PO S 7PO}9;7:< JL3F@3NA$VX OBEZ3=H 7PYZ3L<�f >KJLEG<^38��@1 HKJL<4<4JL2KVJ)[�� S 3LO �K�N>B24J�QSLTJU3 FB3N<���@1�<^H 3 F@7 <47:2�Y 7PE 9|JCF@7 A+JUOB7PEG2;J7:<89KVJU9;E S Jm` H�7:YZ3 JLFBA=EZOBEG<89;24JLFB3N2�F@3 FB3NA$VX OBEG33`}FB7:<89|J_Y 3N24ACJy3 JLFBA=EZOBEG<89;24JLFB3N2�947PA f >B7 S 3LO �K�N>B24JL23L< 2KV3U9;>BYG3N<�FB7+7:O 942;JLFBJ 7+<4JBVX FKJ 7PA S JUFKJ$283L9;7PJLFB3N2 H�3L2y3NO@FB7+3G��@1�HBJL<4<4JL2KVJm[ � JL? 7P2BVJ�J$7:YZ7dL7P28E � S JL2�f >B7vO TJL3 J S 3NO}947 QS JUA S 3NO iKE 9;3N<`OKJ�FBEZ<f9;28EZ?B>BEfQSLTJL3�FB7v2KV3L94>BYZ3L<#` 3N>=<47i54J)`@O TJL3 H 7P24A=EG94EZ2�f >B7F@>KJL<���~`�s<D����@1�<�947POB�BJLA�>BA A=7P<8AC3 2KV3U9;>BYG3 7:A >BA�A=7P<8AC3 7PO@Y�J S 7�[�� ACJLOB7:EZ2;J JUYG9;7:24OKJ 9;EpdUJ+V7J 9;2;JMd�V7P<RFB3N<RH@243L943 S 3NYZ3N<aFB7nFBEZ<f9;24EG?B>BEfQSLTJL3 FB7s2BV3L9;>@YZ3N<L`L3��{c1)6N]_^a`����aM O �<: <OZ`�XgOe:ZO9> �L= ?>@:A>CBD> �FE � ���V7m3 ACJLEZ< S 3NOB�B7 S EGFB3 OKJL<�247:FB7P<�� 1���I[ ������c1�`.f >B7`JLFBE S EZ3NO@3N>�Y >BO S EZ3NOKJUYZEZFBJLFB7P< FB7m7POB�N7:OB�KJL28E�JF@7 942KVJZY 7:�N3�7 FB7 S 3NA=HKJU94EZ?BEGYZEGFKJLFB7 S 3NA 3L<$2BV3L9;>BYG3N< � 1���I` <47 9;3N28OB3N> 3N>@9;283�H@243L943 S 3NYZ3 FB7F@EZ<89424EG?B>BE8QSUTJL3 FB7I2KV3U9;>BYG3N< S �KJLACJLFB3 �����c1 ��� ~�`k3NO@FB7I3 � ~�<8EZ�NO@E � S J � ^�� B0� �gh O ��� ��<O �gh�[:H@2KV3NHB28EZ3 �{c1�9|JLA ?sV7PA Y 3NE�A=3 F@E � S JLFB3IHKJL24JI947P2vJXY >BO S EZ3LOKJLYZEGFKJLFB7cF@7 7PO@�N7POB�BJL24EZJ=FB7�9;2BVJZY 7P�L33`f >B7 287P<4>@YG9;3L> O@3 � ���\�{c1 �Mx�� `v3NOBFB7 3�� � 6�" > ���<: ^ O �;:-� � >@Xg:IO �ghCE+<8EZ�NOBE � S J 283L9;7PJLA=7PO}9;3?BJL<47PJLFB3=7PA 287P<89424EfQSLT3N7:<#[

� ������� ������� � �$�����-� !"� � ��� .

� 7P<89;J <47 QSLTJL3 FBEG< S >@9;7 � <47�J�JLHBYGE S JL?BEZYGEZFKJUFB7 FB3 �$1��� 7:A >BA JLA ?BEZ7:O 947 FB7$HB243 FB>RQSUTJL33` 7947PO}9|J � <47 AC3N<f9;24JL2v<8>KJL<�dUJLO}9;JL�N7PO@<^7 FB7:<ldUJLO}9|JU�N7POB<L`QY J�]P7:OBFB3 >@A+J+YGEZ�}J QSLTJL3I7PO}94247MJC947P3N28E�J=7 3N<7Ub H�7:24EZA=7PO}943N< HB2KVJU94E S 3N<�Y 7PE 9;3N<L[

��+

Page 37: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!.!����*6 $ &?< 1 -0/132-34*@J4 4 : <�P

�$1��� V7 ?KJU<89|JUO 947)V>@94EZYnHKJL2;J�9;3L24OKJL2I3 7PO S JLA=EZOB�KJUAC7:O 943 FB3N<=HKJ S 3U9;7P<=ACJLEZ<M7�� S EG7PO}9;77:A >BA+J 247:FB7 S 3LA A >BEG943N<IO V3N<#[ ~�A >BA+J 247:FB7�` 3NOBF@7 3 J 9;2;JU<43�7 J �UOe:Z: ��I< TJU3 S 2PVX 94E S 3L<#` 3�$1��� V7M>BA ?�3LA S JUOBFBEZFBJU9;3 J <83NYZ>�QSLTJL33[��vYDV7PA FB3 JU942;JL<833`vV7MHB283.d VJ dN7PY�f >B7IJ S JLHKJ S EZFKJUFB7 FB77:O S JUACEGOB�KJLA=7PO}9;3$FB7 S JLFKJ�243U9;7WJUFB3N2 JU>BAC7:O}9;7�5BVJrf >@7 >BA HKJ S 3U9;7 <87P2KVJ�283L9;7PJLFB3 S 3NA/AC7:OB3N<S >B<8943 S 3LACHB> 9|J S EZ3NOKJUY [X��<8<4EZA ` S JL<83 3 �NJL24�}JUYZ3 FKJ 247PF@7+<47 54J J8Y JLYG9;J FB7 S JLHKJ S EZFKJLF@7 S 3NA=HB> �9;J S EG3NOKJLYaFB3N<c283L9;7PJLFB3N287P<L` 3 FB7P<87PA=H�7:OB�B3 FKJ 287PFB7MH 3 F@7P2KVJC3N?@9;7:2^>BACJ AC7:YZ�B3L2;Jm[��$JL<#` S JL<43 3�NJL24�}JUYZ3 <87i54JIJiY JLY 9|J FB7 S JLHKJ S EZFBJLFB7cFB3N<s7POBYZJ S 7:<#`K7^O TJU3MFB3N< 243U9;7WJUFB3N247:<#`B7:O}9 TJL3I3MFB7:<47PA=H 7POB�B3H 3N<8<4EpdL7PYGAC7:O 947�O TJL3I<43�Y 287P2BVJCJLY 9;7:2;J�QSUT3N7P< S 3NOB<4EGFB7P2BVJZdN7:EZ<L[

�REG�N>B2;Jc�l�g� [ )Vm~�O S JUACEGOB�KJLA=7PO}9;3IFB3IHKJ S 3L947i�$1���I[�vH�7:<;JL2mFKJL<�dUJLO}9|JU�N7POB< S EG9|JUFKJL<#` 3u� 1���=J 9;>KJLYGAC7:O}9;7 O TJL3�V7 ACJLEZ<R>@9;EGYZE^]PJLFB3^<83NA=7PO}9;7 S 3LAC3

>@A)A=7 S JLOBEG<4A=3vFB7nJL>BA=7PO}9;JL2RJ S JLHKJ S EZFBJLFB7nJL�N247:�}JLFKJ FB7n>BA+J 247:FB7�[0� >KJ�dL7P24<4JU9;EGYZEGFKJLFB7�f >KJLO}9;3J <4>BJ iK7Ub EZ?BEGYZEZFBJLFB7 FB7 S 3LO �K�N>B24J�QSLTJU3"< TJL3 S JL2;J S 9;7:2WVX <89;E S JL<Xf >B7 H�7:<;JLA J <47:> Y JMdN3L2#`sH 3NEG<M>BAJUFBACEGOBEZ<f9;24JLFB3N2yFB7 247PF@7P<I9;7P2BVJ >@A+J�287PFB7 A+JUEZ< 7�� S EG7PO}9;7Z[ � A+J�287PFB7 A+JUEZ<idL7P24<BVJU9;EGY <4EG�NOBE � S JH 3 FB7P2 9;7:2 JL3CA=7P<8AC3M947PA=H�3M9;2BVJZY 7P�L3N< FB7_dL3w]�`;d�VX F@7P3=7 FBJLFB3N<L` <87PA f >B7 �KJ654JIEZO}9;7:2lY 7:2P�7PO S E�JIFB7>@A iB>)b 3�OB3 3L>@9;2833[ ~)JU3 A=7P<4A=3$947PA=H�3m`�7:<4<47:<�iK>)b 3N<y<47P2 TJL3�FBEG<89424EZ?@>kVX FB3L< A=7PYG�B3N2L`�>B<4JLOBFB3ACJLEG<R7 � S EZ7:O}9;7PA=7PO}947 3L<�247 S >B28<43N<mFKJ^287PFB7Z[m~0b EG<89;7 ~�OB�L7POB�KJU24E�J^F@7���2BVJZY 7P�N3m`NH�3LEZ<�JcFBEG<89424EZ?@>BE8QSUTJL3F@3N</iK>)b 3N< H�3 FB7�<87P2 S 3LO 94243NYZJLFKJm` 9;24J�]P7:OBFB3�HKJL24J 3�JUFBACEGOBEZ<f9;24JLFB3N2C3 S 3NO}9;283NYZ7�F@7 3LOBFB7�3N<iB>)b 3N<sFB7edN7:A�HBJL<4<4JL2#` 7�JL3 A=7P<4A=3�9;7PA=H 3 FBJL2sJ�H 3N<4<8EZ?BEGYZEZFBJLFB7 FB7 FBEZ<f9;28EZ?B>BEG2�FB7 A+JLO@7PEZ24JcA+JLEG<JUFB7#f >KJLFBJIHBJL2;J <8>KJL< H 3NY VX 9;E S JL<nJLFBA=EZOBEG<89;24JU9;E dUJL<#[�~�b@EG<8947^9|JLA ?nV7PA G^>KJUYZEZFBJLFB7�F@7_� 7P2 d EfQS 33` H�3LEZ<<87P2BVJ H�3N<8<WVX dN7PY�f >@7M3 JLFBA=EZOBEG<8942;JLFB3L2�f >B7:EZ2;J f >@7M<43NA=7PO}9;7 3N< S YGEZ7:O 947P<^H@24EZ3L24EG9KVJL24EG3N<�f >B7MHKJL�}JUAACJLEG<#`@> 9;EZYGE^]:7PA�>BA S 7:28943 S JLACEGOB�B3MFKJI247:FB7�`K287 S >B24<83+3N> 7PO@Y�J S 7�`K7POmf >BJLO}9;3+3L< 3L>@9;283N< >@9;EGYZEp]P7PA3L< 287 S >B24<83N<vHBJLFB2 T3L7P<#[

�&�

Page 38: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!.!.!����*6 $ &?< 1 -0/132-34*@J4 4 : <�P

� 7:OB�N7PO@�KJL24EZJ FB7^942KVJZY 7:�N3MH�3 FB7^<87P2 EGACHBYG7PA=7PO}9|JUFKJ S 3NA%H@243L943 S 3NYZ3N<nFB7c243U9;7WJUAC7:O 9433` 9;JLO}9;3F@7 7P<89;JLFB3�FB7+7POBYZJ S 7 f >KJUO 943 FB7odN7D9;3N2MF@EZ<89 �JLO S E�Jm`�H 3NEG< 3 S 3NO S 7:EG943�9;2;J 9|J � <47 JLH 7POBJL< FB7 >@A+JACJLOB7:EZ24J ACJLEG<a7�� S EG7PO}9;7nFB7`>@9;EGYZE^]PJL2 3N<a247 S >B28<43N<�FKJv287PFB7Z`N�N7:2;JLYGAC7:O 947�Y 7PEG943 JU9;24J.d�V7:<RFB7`A V>BY 9;EGHBYZ3N<S JLA=EZOB�B3L<+7 ?BJLY�JLO S 7WJUAC7:O 943 FB7 S JL24�NJm[ HB243L?BYZ7:A+J FB7AY J�]:7P2 EG<4<43 S 3NA >BA HB243U9;3 S 3NYG3�FB7283L9;7PJLA=7PO}9;3 V7 J S 3NA=HBYZ7Ub@EGFKJLFB7+FKJL<=247P�L2;JL<MEGOB<47:24EZFBJL<IOKJL<M9|JL? 7PYZJL<MFB7 243U9;7WJUAC7:O 9433`nJLYDV7:A FKJO@7 S 7:<4<8EZFKJLF@7+FB7IEZO@<47P2PVX � Y�JL<^7:A 9;3 FB3N<�3N<�243U9;7WJUFB3N247:<�FKJ 287PFB7Z[8�H@243 S 7P<8<;JLA=7PO}943$FB7=FB7��KOBEZ2 JF@EZ247 QSLTJL3=FB3LiK>)b 3+<87P28E�JI247WJUYZE^]PJLFB3=J S JLFKJI<;JUYG9;3m`KFBEpY 7:247PO}947yFB3o� 1���I` f >B7if >KJLO@FB3+>BA iK>)b 3�V7JU<4<43 S EZJLFB3 J >BA ��@1�<87P> FB7P<f9;EGOB3 V7=JL> 9;3NACJU9;E S JLA=7PO}947 FB7��KOBEZF@33[=�s3NA=3 3r� 1��� 942;J�]MHBJL2;JJU<�? 3N24FKJU<vFB3+FB3NA$VX OBEG3I943 FBJ+J S 3NA=HBYZ7Ub@EGFKJLFB7 FKJL<vFB7 S EZ< T3N7P<vFB7 7:O S JLA=EZO@�KJLA=7PO}9;33`�JC287PFB7 � S JJUYZEpd EZJLFKJ S 3LACHB> 9|J S EZ3NOKJUYZA=7PO}9;7 7:A <47P>+O^V> S YG7P33`}H 3 F@7POBFB3 JL>BA=7PO}9|JU2`<8>KJ S JLHKJ S EZFKJLF@7vJU�N247:�}JLFKJF@7 7:O S JUACEGOB�KJL2 HKJ S 3L947P<#[

� �

Page 39: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

� �%� �� ��� ���

� ��� � ����� ����� ������ � � � � ! �����"� � �

# ��� "���

� 7P<8947 S JLHkVX 94>BYZ3 V7=FB7:< S 28EG9;J$J A=7:9;3 FB3NYG3N�NEZJ+>@9;EGYZEp]WJLFKJ OBJ EGACHBYG7PA=7PO}9|J QSLTJL33[i�RJLA ?sV7PA V7I7eb �H@YZE S JLFB3 3 A=3L9;E dN3 FKJ 7P< S 3NYG�KJ FB7�9;3NH 3NYZ3L�NE�J >B<;JLFBJm`�<8>KJL<CdLJUO 9;JL�N7:OB< 7�FB7P< dLJUO 9;JL�N7:OB<#[��K3NEEGACH@YZ7PA=7PO}9;JLFB3 >@A JLA ?@EZ7PO}947^FB7^9;7:<8947P<�Y 3N24ACJLFB3 H�3N2s243L947WJLFB3L247P< 1n�s<L`K7eb 7 S >@9|JUOBFB3=3M<4EZ<f9;7:A+J3LH�7:2;J S EZ3NOKJUY�kEZO >)b t�[ x=FKJMFBEZ<f9;28EZ?B>BEfQSLTJL3I� 7PF3h�JU9#[

1�JL2;J <47 9;7:<89|JU2CJ�7:OB�N7PO@�KJL24EZJ�FB7 942KVJZY 7:�N3 V7 OB7 S 7P<4<BVJL24EG3">@A+J�9;3LH�3NYG3N�NEZJ FB7 247:FB7 3NOBFB7 3N<283L9;7PJLFB3N287P<�9;E dN7P<8<47:A/H 7PYG3$A=7PO@3N<�FB3NEZ< S JLACEGOB�B3N<�H 3N<4<PVX dL7PEZ< JU9 V7C3 FB7:<89;EGOB33[ � JLFKJ >BA FB7P<8<47:<S JLA=EZOB�B3L<�947P28E�J S JL24J S 947P2PVX <894E S JU< F@EpY 7P287PO}9;7:<#`�H 3N2�7eb 7:ACHBYG33`a>BA 9;7:24E�J ?KJLE b 3 JU942;JL<833`a7PO3f >KJLO}9433L>@9;283+9;7:24E�JC�N2;JLO@FB7 ?KJLO@FKJ HKJL<8<;JLO}9;7Z`k?KJLE b@3 S >B<f9;3 3N> S 3NO � JL?@EZYZEGFKJLFB7Z[�� 942;JMdmV7P<cFB7:<4<;JU< S JL2;J S �947P2PVX <894E S JL<yFBJ$247:FB7�`�f >@7+< TJU3 S 3LAC7:O 9;JLFKJL<yJLFBEZJLO}9;7=OKJ$<87 QSUTJL3�FKJ ��3NH 3NYG3N�NE�J)`cV7=H 3N<4<PVX dN7:YsJ >@9;E��YGE^]PJ�QSLTJL3�FB7 S JUACEGOB�B3N<mFBEG<89;EGO}9;3N<�f >B7�Y JMdN3L247 QS JLA HKJL26�JLA=7:9;283N<`FB7 G^3S�IFBEpY 7:247:O 947P<L` 3uf >@7�H 7P24A=EG947JCFBEpY 7:247PO S E�J QSLTJL3CFB7 <47:2ld E8QS 33[��vYDV7PA FBEG<4<833` 3N<�A V>BY 9;EZH@YZ3N< S JLA=EZOB�B3L<�H 3N<4<8EZ?BEGYZEG9;JLA JC7POB�N7:OB�KJL28E�JF@7�942KVJZY 7:�N33[

1�JL2;J J�EZA=HBYZ7:AC7:O}9|J�QSUTJL3�FB3 ��A ?BEZ7:O 947 FB7C��7:<8947P<I>@9;EGYZEp]WJL24JLA � <47XY 7P282;JLA=7PO}9|JU<MYZEpd 287P<M7 FB7S V3NFBEG�N3 JL? 7P2f9;33[��<4EZ<f9;7:A+J=3NH�7:2;J S EZ3NOBJLY�>@9;EGYZE^]PJLFB3XY 3NE�38kEZO >)b7t)[ax � ���7 J+FBEG<89424EZ?@>BE8QSUTJL3NY 3LE�3� 7PF3h�JU9�dN7P28< T3N7:<(m[ vy7 ��[�m[���7P< S 3NYG�KJyF@3:kEZO >)bC<47vFB7LdL7^H�3L2gf >B7^7:<89;7$V7v3 <8EZ<f9;7PACJy3LH�7:2;J S EZ3NOKJUYYGEpd 247`7 JL? 7P2f9;3vA+JLEG<�> 9;EZYGE^]PJLFB33`67s9;JLA ?nV7:A)F@7Ld EZFB3^JL3cJLA=HBYZ3 <4>@H�3N2f9;7sJ�AC7 S JLO@EZ<4A=3N<aFB7 S 3NO}9;243LYZ7

Page 40: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!�� � � PQF�$�4 R.,.'�4 :=<�P '�" <�<?+QF��

F@7n9;2BVJZY 7P�L33[R~�<8<47P<�A=7 S JLOBEG<4A=3N<�H 3 FB7P28E�JLA <87P2R7edN7:O 94>KJLYGAC7:O 947 >@94EZYZEp]WJLF@3N<�OB3�HB283 587:943^HKJL24J�Y J�]:7P2287P<87P2ldUJL< F@7c247 S >B24<83N< HKJL24J >BA � 1 `B3N> <8EZA=HBYZ7:<4A=7PO}9;7v247:FB>3]PEG2 J ?KJLO@FKJ FBEZ<8H�3LOkVX dL7PY HBJL2;J >@A+JS Y�JL<8<47yFB7 <87P2ld EfQS 33`�H�3 FB7PO@FB3+<87P2�287PYG7LdUJLO}9;7yOB3N<v947P<f9;7P<�FB7�G^3S� 7 FBE Y 7P247:O S EZJ�QSLTJU3CFB7y<47:2ld E8QS 3N<^OKJ943NH 3NYZ3N�LE�Jm[

� ��� . &��$� 0d� � � ��� . �� � ��� &��

<43�Y 9 �sJL247�f >B7�F VJ <8>BH�3L289;7�JN� 1��� OB3XkEZO >)b V7c3 ��� ����� ����� �����?`B?KJU<47WJUFB3IOB3 S V3NFBEG�N3FBJu� 3N28947PY �v7D9 �s3L2gk <sACJL<�9;7:A�<47:>+FB7:<47:OSdL3NYpd EGAC7:O 943 EGOBFB7PH 7PO@FB7PO}9;7 �B3N<8H�7:FKJLFB3y<43N?=3�FB3NA$VX OBEG3FBJ � 3N>B2 S 7W�K3N28�N7 � ���?`mJL>@9;3L24E^]PJLFB3�H 7PYZJ7�v3N2f9;7:Y FB7P<8FB7Cf >B7 3�FB7P<87PO dN3LYpd EZA=7PO}9;3 <87 ACJLO}9;7:OB�KJH 3N2f9 VJZdL7PY [�� � 3N>B2 S 7W�K3N28�N7�V7c>BA%<PVX 9;EG3MFB7�JLH 3NEZ3IJU3MFB7P<87PO dN3NY d EZA=7PO}9;3=FB7�<43�Y 9 �sJL287 YGEpd 247�HKJL2;JIJH@Y�JU9;JZY 3N24ACJ�kEZO >)bI[� <WVX 94EZ3^7:<89KVJyFBEG<4H 3NOkVX dL7PYBHBJL2;J�J�FBEpd >BYG�}J�QSLTJU3c7�Y >@O S EG3NOKJ S 3NA=3�>BA�H 3NO}9;3�FB77:O S 3LO 94243=FB7 >B<4> VJU24EZ3L< 7 F@7P<47:O dN3NY dN7PF@3N247:<^EZO}9;7:247:<4<;JUFB3N< 7PA 7:O S 3NO}942;JL2L`KHKJL2;JI>B<4JL2 3N> J658>BFKJL2 JF@7P<47:O dN3NY dN7P2L`@<83�Y 9 � JU247P<`YZE d 247P<L[�1�JL2;J�<47 ACJLO}9;7P2�H 3N2f9 VJZdL7PY `}3 S V3NFBEZ�L3cFKJu� 3N28947PYmY 3LEB<47:HKJL2;JUFB3y7:AF@3NEZ<L`B3 �/� ����������� V7^3I<4>BH 3N2f9;7_� 1��� HBJL2;J 3NkEZO >)bI`BEGO S YG>BEc[ ^ :NBDf FB3���� ����� 7�Y 7:242;JUAC7:O 9;JL<JUFBACEGOBEZ<f9;24JU9;E dLJU<#` 7 3%���� �� ��" ��������� V7 3IHB283L9;3 S 3LYZ3MFB7�FBEG<89;28EZ?B>@E8QSLTJU3 FB7 2KV3L94>BYZ3N<sH�3N2f9 VJZdL7PY?[

1�JL2;JI9;2;JUOB<lY 3N28A+JU2 >BA � 3U9;7WJUFB3N2�kEZO >)b 7:A�>BA�� 3L9;7PJLFB3N2 S 3LA�<4>BH 3N28947 J � 1���I` 3N> >BA��@�H6N]_^a`���� QcbdOe:NBDf0� >@Xg: �� Ee`RV7sOB7 S 7P<4<BVJL24EG3�f >B7 3 S V3NF@EZ�N3�Y 3LO 947 FB3 ��� ����� FB3�kEZO >)b <47 54J^AC3 FBE � �S JLFB3 JU9;24J.d�V7:< FB7 >BA [ ^ :ABDf�`Sf >B7�Y >BO S EZ3LOKJ S 3NA=3 >BA �8287PA=7POBF@3 � FB3y<4EG<89;7:A+J 3NH 7P2;J S EZ3LOKJLY [�~�A<87P�N>@EZFKJ=3 kL7:24OB7:YRFB7edN7 <87P2�287 S 3NACH@EZY�JUFB3I7 H 3N<8943+3NH 7P24J S EG3NOKJLY?[ ~�<89;7 �8OB3.dN3 ��� ����� �I9;7:2KVJC>@A+JY >@ORQSLTJL38f >B7M287 S 7P? 7M3 HKJ S 3U9;7MJLO}947P<cFKJoY >BO�QSLTJL3 FB3 283L9;7PJLA=7PO}9;38�i1�[ ~�<89;J8Y >@ORQSLTJL3 F@7:9;7:24A=EZOKJU2KVJ<87 3Nf >KJLFB283 ~�9;�B7:24OB7D9^247 S 7:?BEZFB3CFB7LdL7 <87P2�7:O S JUACEGOB�KJLFB3=H 7PYZ3o� 1���I`�JU9;24J.d�V7:<�FKJL< 9|JU?�7:Y�JL< FB7S 3NA >@9;J�QSLTJU3%f >B7 <87P2 TJL3 S 24E�JUFKJL<#`n3N> <87 3*f >BJLFB243"FB7LdL7�<47:2C7:O S JUACEGOB�KJLFB3 HKJL24J�J Y >BORQSLTJU3�FB3283L9;7PJLA=7PO}9;3X�i1 `;f >B7 OB3N28A+JUYZA=7PO}9;7^<87P28E�JcY 7PE 9;3M<47:A�3I<4>BH 3N28947 JU3o�$1���I[

�vH V3N<c7P<8<47=HB24EGAC7:EZ283+HKJL<8<433`k3 ��� ����� FB3 283L9;7PJLFB3N2 V7 S JLHKJ�]MF@7MEZFB7:O 94E � S JL2^>BA HKJ S 3L9;7:f >B77:<8947i54J S 3NA 3�2KV3L94>BYZ3 � 1���I` A+JU< EZ<4<83�O TJL3 V7 <4> � S EG7PO}9;7 HKJL24J f >B7 3 ��� �����nEZFB7:O 94E �;f >B7 77:O S JUACEGOB�B7s3�HKJ S 3U9;7�[ V~ 9;JLA ?nV7:A OB7 S 7P<4<BVJL24EG3�f >B7 JL<R9;JL? 7PY�JU<�FB7 S 3NA > 9|J�QSUTJL3�<87i54JLA)HB247:7PO S �@EZFKJL<S 3N24287:9;JLAC7:O}9;7 HKJL2;J:f >B7 3 ��� ����� FB7P<8<47i � ��EZFB7:O 94E �;f >B7�7 7PO S JLA=EZOB�B7cHBJ S 3L947P<�� 1���I[ ~m<8<;JL<

� �

Page 41: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!�� � � PQF�$�4 R.,.'�4 :=<�P '�" <�<?+QF��

9;JL? 7PY�JU<#`KJ:�\�� 7 J=�����u`@FB7 �KO@7PA f >KJLYk<47:2KVJ=JMFBEZ287 QSLTJU3=F@3N< HKJ S 3U9;7P<L[� �\��%7 � ��� H�3 FB7:A�<87P2�HB287P7PO S �BEZFKJU<�7P<89KVJU9;E S J�3L>MFBEZOKJUACE S JLA=7PO}9;7Z[J� A+JUOB7PEG2;JvF@EZO��JLA=E S J

V7cY 7:EG9;J+<43N?�F@7PACJLOBFKJ H 7PYG3 HB243U9;3 S 3NYG3 FB7MFBEG<89;28EZ?B>@E8QSLTJU3+FB7M2BV3L9;>BYG3N<�f >B7MH 3 FB7 <47:2c3C�{c1 `k� ����{c1 3N>������^1 ��� ~�[I��A+JLO@7PEZ24JC7:<89 VJ 9;E S J�V7uY 7:EG9;J=ACJLO >KJLYGAC7:O 947yH 7PYG3 JLF@ACEGOBEZ<f9;2;JUFB3N2 FKJ+287PFB7J 9;2;JMd�V7P< FB7 >BACJ EZO}9;7:2lY J S 7�FB7 JLFBA=EZOBEG<8942;J�QSUTJL3 � 1���I[�/<83�Y 9 �sJL247 YZEGO >)b � A=HBYZ<CH�3N<8<4>BEc>@A+JY 7:2424JLAC7:O}9|J"HBJL2;J JLFBE S EZ3LOKJL2M7P<8<;JL<C7PO}9;24JLFKJL<C7P<f9 VJU94E S JU<COKJU<=9;JL?�7:Y�JL< � 1����FB3 ��� ����� [ ~�<4<;JY 7:2424JLAC7:O}9|J�V7 3 ��� ��������3`mf >B7vJU9;24J.d�V7:<nFKJcYGEZOB�KJ^F@7 S 3NA+JUOBFB3�H�3L<4<4EG?BEZYGEG9;J�f >B7 7PO}9;24JLFKJL<`<47 54JLAJUFBE S EZ3NOKJUFKJL<�A=3 FBE � S JLFKJL<v7M247:AC3.d EZFKJU<^FKJL<^9;JL?�7:Y�JL<��\ � 7M� ���u[Q�vYDV7PA FBEG<4<43m`�JoY 7P2424JLA=7PO}9|JY JZ]MJ JL<8<43 S E�J QSLTJL3 7:O 94247IJL<�7PO}9;24JLFKJL<^FBJL<^9|JL? 7PYZJL<#`If >B7 V7 OB7 S 7P<8<KVJL28E�J HKJU2;J 3 7PO S JLA=EZOB�BJLAC7:O}9;3F@3N<mHKJ S 3U9;7P<�� 1���I[S��JLA ?nV7:A�7eb EZ<f9;7 >BA [ ^ :NBDf�HKJL2;J�3 �a^ ��, > ��FB7 243L947WJLA=7PO}9;3�]:7P?B24J ��@�� f >B7EGACH@YZ7PA=7PO}9;J 3X�{c1 `@HBJL2;JcY J�]:7P2 JL< 7:O}9;2;JUFKJL< FBEZOa�JLACE S JL<L[� ]P7P?@2;J V7c>BA%<83�Y 9 �sJL247�YZE d 247�` <43N? JYGE S 7PORQS J n�1� 6��D4�E = X ` �YO9B]�O9B ����� � Ee`3f >B7�EGACHBYG7PA=7PO}9|J F@EpdN7:24<83N< HB243L943 S 3NYZ3L< FB7�243L947WJLA=7PO}9;3m[

��� �� ����� O TJL3 V7c<4> � S EZ7:O}9;7 HBJL2;JMH 3 FB7:2 EZA=HBYZ7:AC7:O 9;JL2s>@A�FB3NA$VX OBEG3X� 1���I`U5BVJNf >B7 7P<f9;7A=3 FBE � S J$<83NAC7:O}9;7 JL<y9|JL? 7PYZJL<:� 1����FB3 ��� ����� [A� <8<43�V7 <8> � S EG7PO}9;7 HBJL2;J 3L<:��@��F@3�O^V> S YG7P3F@3 F@3NA$VX OBEZ3m`0f >B78d TJU3 287 S 7P? 7P2IHKJ S 3L9;7:<^5BVJ�283L9;>BYZJLFB3N<L[ 1�JL2;J�3N<X��@�%FBJ ? 3N28FKJ�FB3 FB3NA$VX OBEG3V7 OB7 S 7:<4<KVJU24EZ3�JLYG�N>BA A=7 S JLOBEG<4A=3 f >@7"H 3N<4<8EZ?BEGYZE 9;7�J JL<8<43 S EZJ�QSLTJL3 FB7 FKJ 9|JL�N24JLACJL< �i1 S 3NA JL<7:O}9;2;JUFKJL< FKJ 9|JL? 7PYZJ ����� f >@7 FB7:947P28ACEGOKJLA/J EZO}947P2lY J S 7�`R3 HB2BV3Zb EZA=3 <;JUYG9;3$7+3�2BV3L9;>@YZ33[$~�<4<47S 3NO 58>BO}943 F@7 EZOmY 3N28A+J QSLT3N7:< dUJLE@F@7:9;7:24A=EZOKJU2�J�f >KJLYB�R~n�R�Z � 1�7P<8<47 HKJ S 3L9;7 F@7LdN7 <87P2mJL<8<43 S E�JUFB33`N7f >KJUY 3yHB2KV3 b@EGAC3_��@��[ 1RJL24JyEZ<8<43y3N<nF@7P<47:O dN3NY dN7PF@3N247:< FB3 ��� ����� ����� �;]:7P2;JUA 9;JLA ?nV7:A [ ^ :ABDf��HBJL2;JIJL<�Y 7P282;JLA=7PO}9;JL< ��������� �� �����7������ � ����$� t�v�� [

� 942;JMdmV7P<^FB3 ��� �������� �V7�H 3N<4<PVX dN7:YRJUFBE S EZ3NOKJU2 YZEZO@�KJL< OKJIYZEG<89|JMFB7 247:�N2;JU<vFB7 HB2 V7�� 283L9;7PJLA=7PO}9;3HBJL2;J�f >B7 3L<�HKJ S 3L9;7:<�f >@7 7P<f9;EpdL7P287PA�F@7 J S 3N28FB3 S 3NA�3cHBJLFB2 TJU3^FB7:947P28ACEGOKJLFB3^<87i54JLA)7PO S JLA=EZOB�BJ �F@3N<n> 9;EZYGE^]PJLOBFB3�3c��@1 7:<4H 7 S E � S JLFB3 H 7PYG3 JLF@ACEGOBEZ<f9;2;JUFB3N2#[R��VJ J_Y 7P282;JLA=7PO}9;J������ � ����$�;` S 3NO}9 V7PAF@3NEZ< HB243L�N2;JLACJL<L`K3 �� 7 3 �/��[� ���:dN7:A F@7>� ^�� B%" > �;: D> � ` 7 FB7Ld EGFB3 J=<4>KJCJLHBYZE S JL?@EZYZEGFKJLFB7O TJL3 <87P2KVJ >@9;EGYZEp]WJLFB3m`NH�3LEZ<`3 942;JU9;JLAC7:O}9;3 FBEpY 7:247PO S E�JUFB3yO TJL3 <87P2KVJ 7LY 7D9;>KJLF@3MJU9;24JMdmV7:<nFBJy247:<47:2ldUJ FB7287 S >B24<83N<#[ �� V7I>BACJCY 7:242;JUAC7:O 9;J S 3NA=HBYZ7D9|J HKJL2;J S 3LO �K�N>B24J�QSLTJU3$FB7Nf >KJL<87C9;>@FB3 OB7 S 7:<4<KVJU24EZ3HBJL2;J J S JUA+JLFBJ+FB7M247:FB7IOB3CkEZO >)bI`kFB7:<4FB7=J EZO}9;7:2lY J S 7 FB7M287PFB7=JU9 V7MJ A+JLO >@947PORQSUTJL3 FKJ 9|JU?�7:Y�JF@7y283L9;7PJLAC7:O}9;33[`1RJU2;J+J=JL<8<43 S E�J QSLTJL3IFB3=FKJU9;JL�N2;JUA+Jc�i1 JI>BA ��@1 Y 3NEk> 9;EZYGE^]PJLFB3 58>B<f9|JLA=7PO}947 JHBJL28947=287LY 7:247PO}947 �J A+JUO > 9;7PO�QSLTJL3 FKJ 9|JL? 7PYZJ F@7C283L9;7PJLAC7:O}9;3 FB3 S 3NACJLOBFB3 ��I[o� FBE Y 7P247:ORQS J FKJ

' �

Page 42: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!�� � � PQF�$�4 R.,.'�4 :=<�P '�" <�<?+QF��

Y 7:2424JLAC7:O}9|J ��� �������� �HKJL2;J�Y 7:2424JLAC7:O}9|J ����� � ����$�y7P<f9 VJcOKJ�JU9;>BJ�QSLTJL3�FKJL<�7P<f9;28>@9;>B24JL<mFB3 ��� ����� [ ��������� �� I9;7:A JM<4>KJ S JLFB7:E�JMFB7 247:�N2;JL< FB7 HB2 V7�� 283L9;7PJLA=7PO}9;3=JLO}9;7:<vF@3CHKJ S 3L947y<87P2 JLOKJLYGEZ<4JLFB3H 7PYZJ�Y >BO�QSLTJL3vFB7s7:O S JLA=EZO@�KJLA=7PO}9;3vFB3 ��� ����� [���<4<8EZA `NJ�dLJUO 9;JL�N7:A)F@7s>B<4JL2�3 ������������ $V7sH 3 F@7P2JUOKJLYZEG<;JL2v9;3 FB3N<�3N< S JLA=H�3L< F@3 S JL?�7 QS JLYG�B3C�i1 `J� � 1 7=��{c1 `k<87P2�Y 3N2�3 S JL<43m`�HB283NH 3N2 S EZ3NOKJUOBFB3>@A+J ACJLEZ3N2 iK7eb EZ?@EZYZEGFKJLFB7yFB7 S 3NO �B�N>B2;J QSLTJL33[=1a3N2�3N>@9;283 Y�JLFB3m`k3 S 3NA+JUOBFB3 �� FB3 ��� � � ������V7ACJLEG< YGEZA=EG9;JLFB3 OKJU<vH 3N<4<8EZ?BEGYZEGFKJLFB7:< FB7y3LHRQSLT3N7:<�7 S JLA=H 3CFB7 JU9;>BJ�QSLTJL3m`N5BVJXf >B7 <8>KJL<v247P�L2;JL< 9;7:2 TJL3f >B7 � S JL2MOKJ 9;JL? 7PY�J�F@7 243L947WJLA=7PO}9;3 7 <43NA=7PO}9;7 3�7:OBFB7:247 QS 3*�i1�`�FB7 3N28EZ�N7:A'3L> FB7P<f9;EZO@33`m< TJL3JUOKJLYZEG<;JLF@3N<#[�� >KJM�N2;JLO@FB7�dUJLO}9|JL�L7PA V7^H 3 FB7P2�� S JL2 OKJ 9;JL?�7:Y�J F@7c243L947WJLA=7PO}9;3m`KJL<4<8EZA `BJL<s247P�L2;JL<<87P2 TJL3$942;JU9;JLFKJL< H�7:Y�J8Y >BORQSUTJL3 FB7=243U9;7WJUAC7:O 943 FB3 ��� ����� `RJUYG9;7:2;JLO@FB3 J 7P<f9;24> 9;>B24J$FB7=FKJLFB3L< FB3��� ����� ACEGOBEZACJLA=7PO}9;7Z` 3U9;EZA=E^]PJLOBFB3 3=F@7P<47:ACH 7PO@�B3+FB3I7:O S JLA=EZO@�KJLA=7PO}9;3IFB3IHKJ S 3L9;7Z[1a3N289;JLO}9;33` FB7Ld EGFB3 �JL< S JL24J S 947P2PVX <894E S JL<vF@EpY 7P287PO}9;7:<�FB7 S JLFBJ Y 7P282;JLA=7PO}9|J)` S JLFKJ=>BA+J=FB7PYZJL<�Y 3NE

> 9;EZYGE^]PJLFKJyHBJL2;JM>BACJ FB7:947P28ACEGOKJLFKJ �KOBJLYZEGFKJLFB7Z[� S 3NACJLOBFB3 �� V7c>B<4JLFB3IHKJL24J S 3NYG3 S JL2 3N<���@1�<HBJLFB2 TJU3CH 7PYG3N<�f >BJLEZ< 3N< HKJ S 3L9;7:<vFB7edN7:A <87P2 7PO S JLA=EZOB�KJUFB3N<#`KEG<4<83NY J�] S 3NA f >B7y3L<���@1�<vJU9;>B7:AS 3NA=3v9 V>BO@7PEZ<�f >B7sYG7LdUJLA J >BA+J V>BOBE S J 287PFB7Z[0��<8<4EGA)HBJL2;J S JLFKJv247PF@7sFB3L`D^gB � `<> ���e`kV7`EZFB7:O 94E � S JLFKJH 3N2y>BA � 1 [� S 3NA+JUOBFB3 ���V7+>B<4JLFB3�HBJL2;JrY JZ]P7P2y?KJLYZJLO S 7PJLA=7PO}9;3�F@7 S JU24�}J H 7PYG3 7:OBFB7P287 QS 3�i1 F@7yFB7:<894EZOB33[�� <4<43�V7y287WJLYGE^]PJLFB3 S 3NYG3 S JLOBFB3I>BA ��@1 F@EpY 7P287PO}9;7 HKJL24JXY JUE b@JL< FB7 7POBFB7:247 QS 3N<��i1�<F@7y>BACJMAC7:<4ACJ=287PFB7Z[���<8<4EGA 3N< HKJ S 3U9;7P< HKJL24J=>@A+JMA=7P<4ACJI247PF@7yH 3 F@7P24EZJLA%<87P�N>@EZ2 S JLA=EZO@�B3N<F@EZ<894EZO}9;3L< FB7PH 7POBF@7POBFB3CFB3=FB7P<f9;EZO@3=F@3 iK>�b@3m[

� 3 S JL<83 FKJ FBE Y 7P287PO S E�J�QSUTJL3 FB7^<87P2 d EfQS 33` 3NOBFB7�3cf >B7^FB7D9;7P28ACEGOKJy>@A ��@1 V7�>BACJ EGOmY 3N24ACJ�QSUTJL3ACJLEG< 7:<4H 7 S VX � S Jm` S 3NAC3CJCH 3N2f9|JCF@7 3N28EZ�N7:A�3N> FB7yFB7P<f9;EGOB3+FB3CHB243U9;3 S 3NYG3CFB7 9;24JLOB<4H 3N2f9;7 6=� � 17 �v{c1 EU`K3 ��������� �� :Y 3NEk>@<;JLFB3m[

����������� � ����� pcg������������

��� �����nV7 3+O�V> S YZ7P3CFB3+<8EZ<f9;7PACJC3LH�7:2;J S EZ3NOKJUYJ�EGO >)bI[� ��� �����nV7 247:<4H 3NOB<KVJ dN7PYRH�7:YZ3=EZO}9;7:2��Y J S 7WJUAC7:O 943 FB3 �KJU24F �sJL247 S 3NA 3N<�<83�Y 9 �sJL247:<cFB7 OkVX dN7PY�FB7 HB28Epd EZYDV7P�NEG3IFB7 >B<8> VJL24EG3 6 X�� �� �N[ ^gB � EU[�vYDV7:A�FBEG<4<833`mY J�]^3M283L9;7PJLA=7PO}9;3MFB7cHBJ S 3L947P<�f >KJLO@FB3I3X�EGO >)b V7 S 3NO �K�N>@2;JLFB3MHBJL2;J <87P2 >BA�243L947��JUFB3N2#[� �EGO >)b S 3LAC3I243U9;7WJUFB3N2 V7c>BACJI3LHRQSLTJL3 S JUFKJXdL7#] A+JUEZ< S 3NA >BA `BFB7ed EGFB3CJL3I?KJLE b 3 S >@<89;3F@7+EZA=HBYG7PA=7PO}9|J�QSUTJL33`�Y J S EZYZEGFKJLFB7IFB7C<47C7PO S 3NO}9;2;JU2 FB3 S >BA=7PO}9;J�QSLTJL3 7 S 3NOB<89;JLO}9;7 J 9;>KJLYGE^]PJ�QSLTJL3 FB3

'��

Page 43: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!�� � � PQF�$�4 R.,.'�4 :=<�P '�" <�<?+QF��

�REG�N>B24Jc���c[��wV`� >@O S EG3NOKJLA=7PO}9;3MF@3 ��� ����� [

S V3NFBEG�N3:Y 3NO}9;7�`KH 3N<8<4EZ?@EZYZE 9|JLO@FB3 JIJU94>KJLYZEGFKJLFB7 S 3NA O@3 dL3N< HB243L943 S 3NYZ3L< 7�OB3.dLJU<�Y >@O S EG3NOKJLYGEZFKJLF@7P<#[ [ ^ :NBDfcF@3 ��� ����� S 3NOB<8EZ<f9;7 7PA >BA�JL2gf >BE dN33` S 3LA�HKJL26�JLAC7D9;283N<�f >B7vEGOBFBE S JLA�JL3NOBFB7 7 S 3LAC3

F@7LdN7:A <47:2JY 7:EG9;JL<kJL<�A=3 FBE � S J QSLT3N7:< OB3N<aJL2lf >@EpdN3L<QY 3NO}9;7P<�FB3 ��� ����� [��s3NA=3 7:<4<87sJL2lf >BEpdL3 O@7 S 7:<4<8EG9|JF@7�247eY 7P2P�7PO S E�JL<`HKJL24JyYZ3 S JUYZE^]PJ�QSLTJU3cFKJL<`AC3 FBE � S J�QSUT3N7P<L` JUYZ�N>BA�9;247 S �B3 FB7 S V3NF@EZ�N33`�V7 OB7 S 7P<8<KVJL28EZ3cf >B7J8dN7:24< TJL3$F@3 ��� ����� FKJ f >KJUY�3/[ ^ :NBDf Y 3LE�3N24EG�NEZOBJLFB3 <87i54J$> 9;EZYGE^]PJLFKJm[ � JL<43 S 3NO}942KVJL28EZ33`k7Ub@EG<8947+JH 3N<8<4EZ?@EZYZEGFKJLFB7 FB7:<4<;JU< 287LY 7:2P�7PO S E�JU< O TJL3I7eb EZ<f9;EG247PA ` 3Nf >B7�J S JL28247:9;JL2KVJ 7:A%A=3 F@E � S J�QSLT3N7:< 7P282 �3NO@7WJL<S 3NA S 3NOB<47Lf �> �7PO S E�JL< EZA=HB247ed EZ<PVX dN7:EZ<#[

1�JL2;J JUHBYZE S JL2 3 [ ^ :NBDf V7yOB7 S 7P<4<BVJL24EG3 3 Y 3LO 947 FB3 ��� ����� [�� TJL3+9;JLA ?nV7:A�OB7 S 7P<4<BVJL24EG3N<cJL< ?BEG?BYZE��3U9;7 S JL< � �����(�$7+3 S 3NA=HBEZYZJLFB3N2 ���$�$HKJL2;J S 3NA=HBEZYZJL2c3�OB3.dL3 ��� ����� S 3NA/3 <8>BH 3N28947 JG� 1���I[^<:Y 3NO}9;7:<MFB3 ��� ������7 FB3 ��� ����� ����� ` < TJL3 EZOB<f9|JLYZJLFB3N<yOB3N<IFBEZ287:9KV3N24EG3N<�� �/ �"�� "����$��� ����� 7� �/ "��� "��������� ����� ����� `R247:<4H 7 S 9;EpdUJLA=7PO}947�[_ [ ^ :ABDf V7yEZOB<f9|JLYZJLFB3+O@3 kL7:24OB7:Y [_� 7:�N>B7MJL?BJLE b 3 J<87#f �> �7PO S E�JIFB7 S 3LA+JLO@FB3N< HKJL24J=EGOB<89;JLY�J QSLTJL3 F@3N< <43�Y 9 �sJL247:<#[

'��

Page 44: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!�� � � PQF�$�4 R.,.'�4 :=<�P '�" <�<?+QF��

����������������� � �����������" ��� ������ "�������� � �/ "��� "����$��� �����" ��� ������ "������������� ���������� ����� ����� ����� � �!�"� � ���������� ����� � ��� � ����� #� ��� #$#" ��� ������ "���������$�� ��� ���/� ����#����

������% �'&)( �����*�+�-,�.����.��/��0�1� � �32�45� ����� ��������"�����6 ����7���� ���/� ���/ '8�2 ��������� ��� �9�

� 2�4 �" ����� # ��" ����7������ ������ ����������" � �(� ����� ����� � ����� ���$"���7���"� '8:2�;�<� ���=2>����� � ��"$/� � �?���/� ���/ @2 ���� ���� �����9�

� 2>,���" � ������(( �� " � ������� ��$ ���$ ���:2� 2 � � ��/� � � ��� $ �� ��� @2� 2BA���� �/� � �" � � �� �$�C����� ���C� � �������(� � ��2

���)A � ���������9�" � � ���!����$�� �����D ����$�� �$���$���/D ����$��!��E � ��� ���FD" � � ���!����$�� � ��� ������ GD ����$�� � ��� ����� H�I � �( ������$�" � � ��� �� � "���� ���)J�K�L ��� ��� � ���*E � ��� ��� ��� ��� � �" � � ���C7/� � ���������" �$�;� ������#

M .�� �'% �'�����*�9�" � � ��� ������ ��ON �$"���PA ���*�A �����-7 ��"� � ���RQ0�5S�SJTQ�L �Q�U ����Q�Q �-V���� ����� � ���� ��"�� � �/� � ���A �����-������� ��� � ������"$#�� ���" � � ���

�vH V3N< J S 3NA=HBEGY�J�QSUTJL3 7CEGOB<89;JLY�J�QSUTJL33`�3 O@3 dL3 ��� ����� FB3A�EGO >)b 7P<f9 VJ �KJU?BEZYGEG9|JUFB3 HKJL24J S 3LA > �9;JL2=HKJ S 3U9;7P< � 1���I[ �s3LAC3�J S 3LA >@9|J QSLTJL3"<47 287WJLYGE^]PJ"JU942;JMdmV7P<CFKJL<C9;JL? 7PY�JU<o�$1����F@3 ��� ����� `F@7LdN7 � <87 9;7P2y>BACJrY 7P282;JLA=7PO}9|Jrf >@7 H�3L<4<4EG?BEZYGEG947M3�JLFBA=EZOBEG<8942;JLFB3L2 F@3�FB3NA$VX OBEG3 AC3 FBE � S JL2 7P<f9|JL<9;JL? 7PY�JU<#`}3N>=7PO}9 TJU3 JLYG�N>BA�H@243L943 S 3NYZ3cFB7 FBEG<89;28EZ?B>@E8QSLTJU3cFB7v2BV3L9;>@YZ3N<�HKJU2;J�Y J�]P7:2n7:<4<4JL<nA=3 FBE � S J�QSLT3L7P<JU>@9;3NACJU94E S JUAC7:O 947�[

'�'

Page 45: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!�� � � PQF�$�4 R.,.'�4 :=<�P '�" <�<?+QF��

����������� � _aeKeKwmr _a\sjBw pc_ w�p�r�df\cdi� j@eKwyxo`zw�g��������� ����

�/� �������� V7�>BA <43�Y 9 �sJL247 FBEZ<f9;24EG?B>kVX FB3�7:A S 3NO 58>BO}9;3 S 3NA 3$[ ^ :ABDf FB3 ��� ������FB3E�E��O >)b ����� [�~�<8<47 HB243N�L2;JLACJ�Y J�] JcEZO}9;7:2lY J S 7 F@3yJUFBACEGOBEZ<f9;24JLFB3N2 S 3NA JU<m9;JL? 7PY�JU<�� 1���=FB3 ��� ����� [� 942;JMdmV7P< FB3��/� ��������IH�3 FB7 � <47 S 3NO �K�N>B24JL2s7:O 942;JLFBJL<�� 1���C7P<f9 VJU94E S JL<#` 3N>+<87i54Jm` FB7 �KO@EZFKJL<sH�7:YZ3JUFBACEGOBEZ<f9;24JLFB3N2 FBJ 287PFB7Z[ � <4<83�<8EZ�NOBE � S JGf >B7 9;3 FB3N<I3N<IHKJL26�JLAC7D9;283N<I<47P2 TJL3 EZO}9;283 FB>m]PEZF@3N<IH�7:YZ3JUFBACEGOBEZ<f9;24JLFB3N2�A+JLO >KJUYZA=7PO}9;7Z[���YDV7PA�FBEZ<8<433` 3 JLFBA=EZOBEG<8942;JLFB3L2�9;7:2KVJ�f >B7 S 3NO �B�N>B2;JU2mJL<m7PO}9;24JLFKJL<7:A%9;3 FB3N< 3N< 283L9;7PJLFB3N287P< FB3=FB3NA$VX OBEG3 H 3N2 3NOBFB7�3 �f9 V>@OB7PY �X � 1 HKJL<8<;JL2BVJm[

�s3NA=3 3 ��� �������� V7 >BA HB243L�N2;JLACJCF@7MYZEZO@�KJCFB7 S 3NACJLOBFB33`�3N< S 3NA+JUOBFB3N<^<87 9;3L24OKJLA 7eb �947POB<83N<#`W5BVJ�f >@7vJ�f >KJLO}9;EGFKJLFB7 FB7 HKJL26�JLA=7:9;283N< V7 �N2;JUOBFB7�[��s3NA 7PYG7 V7 H 3N<8<WVX dL7PY EZO@<47P28EZ2L`}AC3 FBE � S JL2L`JUHKJL�}JL2 7�Y J�]:7P2 JL<8<43 S E�J QSLT3N7:<v7:O 94247 JL< 7PO}9;24JLFKJL< FKJU< 9;JL?�7:Y�JL<��$1��� FB3 ��������� [�� 9|JU?�7:Y�JM�����V7=247:<4H 3NOB<BVJZdN7:YsH 3N2�FB7 �KO@EZ2 J$EGO 947P2 Y J S 7=7I2KV3L94>BYZ3 FB7=<;JBVX FKJ F@3N<yHBJ S 3L947P<L`R7CJ �\�� F@7 �KOB7 f >KJLY2BV3L9;>@YZ3 FB7LdL7CH 7P2f9;7:O S 7:2 3 HKJ S 3L9;7=7IFB7 f >KJUY�EZO}9;7:2lY J S 7=7:<8947CFB7edN7=9;7P2�<8EZFB3 3N24EG�NEZO VJL24EG3+HKJL24J <87P27:O S JUACEGOB�KJLFB3cHBJL2;J�J�Y >BORQSUTJL3�FB7 7PO S JLACEGOB�KJLA=7PO}943_� 1� ��[ ~m<8<;JyJL<4<83 S E�J�QSUTJL3c7PO}9;287 JL<m7PO}9;24JLFKJL<FBJ 9|JU?�7:Y�J ����� FB7C<4JBVX FBJm`�7+JL< 7PO}942;JLFKJU< FKJ 9|JL? 7PYZJ �\�� FB7C7:O}9;2;JUFKJm` V7=J 247P<8H�3LOB<KVJZdL7PYnH�7:Y�JS 3NA >@9;J�QSLTJU3=F@3N< HKJ S 3U9;7P<�� 1��� F@7PO}9;283CFB3=243U9;7WJUFB3N2#[

^< S 3NACJLOBFB3N< JL?BJLE b 3=EZOB<87P247:A�>BACJ=7:O 942;JLFBJ+OKJM9|JL? 7PYZJC�����_[ ~m<8<;JC9;JL? 7PY�J V7 247P<8H�3LOB<KVJZdL7PYH 3N2 FB7D9;7:24A=EZOKJL2 3I2BV3L9;>BYG33`BJIEZO}947P2lY J S 7cFB7�<;J@VX FKJM7�3IHB2KV3Zb EGAC3M<4JLYG943=F@3CHKJ S 3L947�[

�������$�� ��� � �-�����%. � � %���� ����,�.������ ��� �������� �� ��� Q N � � $�� H����"�� ������*H� !���� �"� ��� �������� ���#�',�.$� � � ��/ ��;� ����� � ��Q�Q9� ������ ���� �9� ���7$%��B��S�9�B��L�K0�B���0� J$&

�H@24EZA=7PEG243 S 3NA+JUOBFB3I<4EGACHBYG7P<8AC7:O 947cEZOB<87P287y>BACJM7PO}9;24JLFKJIOKJ=�����u[;� 3NHRQSUTJL3 � ��� �=F@7 �KOB7f >B7=<47M942;JU9;J F@7=>@A+J JLFBEfQSLTJL3 7=J � � � FB7��KOB7Nf >B7=J$JLF@E8QSLTJU3 V7MOBJ 9;JL?�7:Y�J ����� FB7I<4JBVX FKJ)[N<87P�N>@OBFB3 S 3LA+JLO@FB3�FB7��KOB7 3�f >@7 <47P2BVJ�7eb 7 S >@9;JLFB3cOKJ�7:O}9;2;JUFKJ^FKJv9;JL?�7:Y�Jv�����u` EZFB7:O}9;E � S JLFKJvH�7:Y�JS �BJ.dL7('�j�~�):[ ~�<4<;J S �BJ.dL7 247 S 7:?�7:> JC<;J@VX FKJ=FB3+HB28EZA=7PEG243 S 3NACJLOBF@33`�7 S 3LO 9 V7PA 3+EGFB7PO}9;E � S JUFB3N2FBJ=7:O 942;JLFBJCEZO@<47P28EZFKJIOB3 S 3NACJLOBF@3+JLO}947P24EG3N2#[s�s3NO}9;EGO >KJLOBFB3CJ=JLO VJLYGEZ<47�FB3 S 3LA+JLO@FB33`K3 �8HB>B<8� �3`F@7:9;7:24A=EZOKJcf >B7�3I2KV3U9;>BYG3 FB7P<f9|JI7PO}9;24JLFKJIFB7LdL7�<47P2 EGOB<47:24EZF@3MOB3IHKJ S 3U9;7�`@EZOBFB7:H�7:OBFB7:O 947yF@7c�KJMdN7P23L> O TJL3 3N> 9;243 2KV3L94>BYZ3 O@3 HKJ S 3L9;7Z[� �8�L7PO �3` FB7^�N7:OnV7P28E S 33`@<8EZ�NOBE � S J_f >B7c3 2KV3U9;>BYG3�V7^�N7:OsV7P28E S 3m`@3N>

' &

Page 46: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!�� � � PQF�$�4 R.,.'�4 :=<�P '�" <�<?+QF��

<87i54Jm`k947P2KVJ >@A S JL? 7 QS JLYZ�@3 � 1� � � t��?[ {^EpY 7:247:O 947MFB3 ~�9;�B7:24OB7D9M`�7eb EZ<f9;7:A9;7 S OB3NYG3N�NEZJL<�FB7I287PFB7f >B7yO TJL3=HB247 S EG<;JLA FB7:<4<47 S JL? 7 QS JLYZ�@33` S 3NA=3C3N�����*[ dUJLYZ3L2 �gt�vwv � V7y3XdUJLYZ3L2 7PA FB7 S EZACJLYkFB32BV3L9;>@YZ33[ � HBJL28947 �f<47:9#V 7D9;� t�V EGHSd�x3V��� t�[���� @m[��.t)[� � ��FB7 �KO@7�f >B7 3yH@2KV3Zb EZA=3�<;JLY 9;3�<47:2KVJ�3y3 243U9;7WJUFB3N2S 3NA 3I7PO@FB7P287 QS 3 �i1 �� t�[���� @m[��.t)[� � 7�947PA S 3NA=3=EGO}9;7P2 Y J S 7cF@7 <4JBVX FBJ=JIEZO}947P2lY J S 7�������3[

� 3LAC7:O 947 S 3LA/7:<4<4J�7PO}9;24JLFKJ OKJ 9|JL? 7PYZJ ������FB7 <;J@VX FKJ S 3NO �B�N>B2;J � <47+3 243U9;7WJUFB3N2c��@� FKJ? 3N28FKJ+FB3 F@3NA$VX OBEZ3m[ 1RJL24J S 3NO �B�N>B2;JU2�3N<v243L947WJLFB3L247P<�FB7 O�V> S YZ7:3 V7 OB7 S 7:<4<KVJU24EZ38f >B7 JLYDV7:A�FB7P<8<;Jm`>@A+J 3N>@9;24Jy7:O 942;JLFBJ OKJ 9;JL? 7PY�J_�\�� <47 54JyEZO@<47P28EZFKJ 7^JL<8<43 S EZJLFKJ S 3NA�Jy7:O 942;JLFBJ FKJ 9;JL? 7PY�J �����F@7 <4JBVX FBJm[`�s3NA=3=A=3N<f9;2;JUFB3IJL?KJLE b 33V

��� ��� ��������� � � �� ��"$#������ � � ��7(��"!���� � ��� ���

� ��� ��� �������� ��� �����J0�5Q�������$�� ��� � �-�����%. ��� %���� �"��,�.������ ��� �������� �� ��� Q N � � $�� ���"�� ������� ���

� J � ��� �������� ���#�',�.$� � � ��/ ��;� ����� � ��Q$�9� ������ ������!� ���7$%��B��S�9�B��L�K0� �$�0�5L�������$�� ��� � �$�T�����%. � � �'��A � � � $ ����� � � �����%. � �-%���� % � ��� �������� �� � � ����� � ��Q �!� Q� U"� ��� �������� � � � � ����� � ��Q �!� Q ��� �',�.��

HB24EGAC7:EZ283 S 3LA+JLO@FB3^�KJL?@EZYZE 9|J 3_� 1���MOBJ�EZO}9;7:2lY J S 7 �����J 7 JL<4<83 S E�J^JU3 � � ^a`���� �N[ ^gB � ��]P7P2833[ � ^a`���� �N[ ^gB �^F@7:9;7:24A=EZOKJ 3 7P< S 3NH 3 JU3rf >KJLY�7:<4<4J$EZO}947P2lY J S 7 V7=JL<4<83 S E�JLFKJ)`aF@7:9;7:24A=EZOKJUOBFB3Cf >KJLY9;JL? 7PY�J_�\�� V7�J S 7P<8<;JLFKJMH 7PYZJL<�Y >@ORQSLT3N7:< FB7 S 3NA >@9;J�QSLTJU3:� 1���I[;�<87P�N>BO@FB3 7�947P2 S 7PEG243 S 3NACJLOBFB35BVJiY 3L2;JLA�7eb HBYGE S JUFB3N<#`@7c<43NA=7PO}9;7cEGOB<47:247:A >BACJ 7PO}9;24JLFKJMOKJ 9|JU?�7:Y�JM������F@7 <4JBVX FBJm[��v3Xf >KJL2f9;3S 3NACJLOBFB3 J 3LHRQSLTJL3 � ��� � FB7 �BOB7Gf >B7 J�3NH 7P24J�QSLTJL3�V7 >BA+J�JLFBE8QSUTJL33[ � 3NHRQSUTJL3 � ���M�L7POQV��.vwvmV v �F@7:9;7:24A=EZOKJ f >B7 J�JLF@E8QSLTJU3�V7 Y 7:EG9|J OKJ$9;JL?�7:Y�J �\ � 7 f >B7 3�2BV3L9;>BYG3Af >B7 7:<89;J�FB7LdL7 <47 JU<4<43 S EZJL2V7 �.vwvm` OB3 �8YZJL? 7PYa<4HKJ S 7��8]:7P243m[��v3 f >BEGO}9;3 S 3NA+JUOBFB3 J+3LHRQSLTJL3 � �\W �m`}58>BO}943 S 3NA � �\ 'Zj ~�) �3`JU<4<43 S EZJ J 7:O 942;JLFBJ EGOB<47:24EZFBJ OKJ8�\��*`aJU942;JMdmV7P< FB3rf >KJU289;3 S 3LA+JLO@FB33` �J 7PO}9;24JLFKJ EZOB<87P24EGFKJ H�7:YZ3947P2 S 7PEG243 S 3LA+JLO@FB3IOKJC� ���u` JU942;JMdmV7P< FB3=<47P�L>BOBFB3=7c9;7P2 S 7:EZ243 S 3NA+JUOBFB33[

'�+

Page 47: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!�� � � PQF�$�4 R.,.'�4 :=<�P '�" <�<?+QF��

����������� � � � _aeKeKwmr _a\sjBw���� ����� _��"��� �� �����

� Y 7:2424JLAC7:O}9|J �� J 9;>KJ O@3 ��������� `RAC3 FBE � S JLOBF@3�J ACJLOB7PEG2;J S 3NA=3�3N< HBJ S 3L947P<M< TJL3�7PO S J �A=EZO@�KJLFB3N<�JU9;24JMdmV7:<^FKJ+9;JL?�7:Y�J=FB7 243U9;7WJUAC7:O 9433[���JUFBE8QSUTJL3 FB7 7:O}9;2;JUFKJL<^OKJU<�9|JL? 7PYZJL<��$1����FB3��� ����� O TJL3 V7M<8> � S EG7PO}9;7IHKJU2;J f >B7I3N<c243U9;7WJUFB3N247:< S 3NA=7 S 7PA J S 3NA >@9;JL2^3N<cHBJ S 3L947P<u� 1���I[��JU<4<43 S EZJ�QSLTJU3CFB7iK>�b@3L<�JL3L<���@1�< S 24EZJLFB3N< V7�OB7 S 7P<8<KVJL28E�J=OKJL< ?�3L24FKJL< FB3=FB3NA$VX O@EZ33` H�3NEG< <47:A EG<4<833`O TJL3�7Ub@EG<894EZ2 TJU3 HBJ S 3L947P<0� 1� � HKJL2;J <47:247:A S 3NA >@9;JLFB3N<aOB3vO^V> S YG7P33[�~�<4<;JvJL<4<83 S E�J�QSUTJL3�7:O}9;247 iK>)b 3N<7c � 1 Y J�] J+243U9;>BYZJ�QSLTJL3CFB3N<^HBJ S 3L947P<��i1 7 H 7P28ACE 9;7uf >@7 3N<^283L9;7PJLFB3N287P<�F@3 O^V> S YG7P3+F@3 FB3NA$VX OBEG3> 9;EZYGE^]:7PA�JL< 9|JL? 7PYZJL<�� 1���I[

�������$�� ��� � � " � � � � "�� �� ������ " ���"�� � �����%.�� " � ���� ���� ��S�9�"��LK/�5Q9�5Q � ��%T7/��� ��S$�0�"��LK0�B���!� J�& � � H��',�.��

S 3NACJLOBF@3MJ S EGA+J V7^7eb 7 S >@9|JUFB3IYZ3N�N3 JLH V3N< 3L< S 3NACJLOBF@3N< FKJuY 7:2424JLAC7:O}9|J����� ��������CAC3 FBE��� S JL287PA JL<�9|JL? 7PYZJL<_� 1���I[a~�YZ7 V7=3 247:<4H 3NOB<BVJZdN7:YnH 3N2�Y J�]P7:2 J JL<8<43 S E�J QSLTJL3 FB7I9;3 FB3N<�3N< iK>)b 3N<f >B7 <47�FB7:<894EZOKJLA �JI287PFB7 ��wt)[�� � @a� ��� HBJL2;JM3 � 1 EZFB7:O}9;E � S JLFB3IH 7PYZJ S �KJMdN7 'Zj ~�)c[

�������/���� H�3L<4<4EG?BEZYGEG9;Jof >B7+J JL<8<43 S E�J QSLTJL3 FB7�iK>)b 3N< <47 54J Y 7:EG9|J S 3NOB<4EGFB7P24JLOBFB3 3N>@942;JL<�EGO �Y 3L24ACJ�QSLT3N7:<�JLYDV7:A FB3 7PO@FB7P287 QS 3r�i1 ` S 3LAC33`kH 3N2c7Ub@7:ACH@YZ33`�3N<iK>)b 3N<_f >B7M9;7:OB�KJLA OB3 HB283L9;3 S 3LYZ3� � 1 H�3N2f9|J+F@7M3N24EG�N7PA 3N> FB7:<89;EGOB3 twt)[ � J�]:7POBFB3 JU<4<4EGA JL<�<47P<8< T3N7:<yEGO}9;7P24JU9;E dUJL<�FB7N�m�mh�<47:2 TJL33L<vJUYpdN3L< FKJ=287P�N24Jm[

� Y 7:242;JUAC7:O 9;J ��� V7 7eb 7 S >@9;JLFKJ OB3 ��������� JLO}947P<cFKJ Y >BORQSUTJL3 FB7 942;JLOB<8ACEG<4< TJL38f >B7I7PO d E�J 3N<HBJ S 3L947P< HBJL2;J"J"EZO}947P2lY J S 7 F@7 247:FB7�[ � 9;24J.d�V7:< FB7P<f9|J*Y 7:2424JLAC7:O}9|J)V7 H�3L<4<PVX dN7:Y�YZEGACE 9|JL2 J S JUHKJ �S EZFKJUFB7 FB7 9;24JLOB<4A=EZ<8< TJL3 FB7$>BA+J EZO}9;7:2lY J S 7$7 S 28E�JL2=>BACJ EGO 947P2 Y J S 7 S 3NA >BACJ"?KJUOBFKJ5d EG289;>BJLY287PFB>m]PEZFBJm[�� 942;JMdmV7P<cFB7:<4<4JoY 7P2424JLA=7PO}9|JI9|JLA ?nV7PA V7 H 3N<4<PVX dL7PY Y JZ]P7P2v247:<47P2 dUJ+FB7 287 S >@24<43+HKJL2;J iK> �b 3N< 7:<4H 7 S VX � S 3N<#` EZ<8<43�V7�Y 7:EG9;3 JU9;24J.d�V7:< F@7 �KYG94243N<�f >B7c> 9;EZYGE^]PJLA�JL< EZOmY 3L24ACJ�QSLT3N7:<sFB3 S JL?�7 QS JLYG�B3MFB3H@243L943 S 3NYZ3MFB7�287PFB7�7�FB7c9;24JLOB<4H 3N2f9;7�[

V~�EZA=H�3N2f9|JLO}947^3N?B<87P2ldUJL2�f >B7^943 FBJL< JL< 9;2P�7P<�Y 7:242;JUAC7:O 9;JL<�Y 3N24JLA�?BJLE b@JLFKJU< FKJc� O}9;7P28OB7:9 S 3NA3"[ ^ :NBDf$HKJL2;J�<8>BH�3L289;7 JU35� 1� �$5BVJ�JLHBYGE S JLFB33["1�3N<8<4EG?BEZYGEG9|JUOBFB3Af >B7 7:<4<47:< S 3NACJLOBFB3N<uY 3N<4<87PAJUHBYZE S JLFB3L< JLiB>)b 3N< FB7_ � 1m<L[

'&�

Page 48: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!�� � �*68> ��'SR R -;"*')+�,.-;>N@�'�4 '�@�<e/132-34

� ��� � � � �0 0d��� � �/� ���*!"� � �!��3�����-�

� Y 7:242;JUAC7:O 9;J �����"$#AY 3NE�>B<;JUFKJ HKJL2;J A=7PFBEG2�?KJUOBFKJ FBEZ<8H�3LOkVX dL7PYRO@3N<cHKJL287P< S YGEZ7PO}947�� S YZEG7PO}9;7Z`S YZEG7PO}9;7 � 243U9;7WJUFB3N2#` 243U9;7WJUFB3N2�� S YGEZ7PO}947�7 243L947WJLFB3L2�� 283L9;7PJLFB3N2L[ ~�Y�J 9|JUA ?nV7PA Y 3NEc>@94EZYZEp]WJLFBJ S 3LAC3Y 7:2424JLAC7:O}9|J �N7P24JLFB3N24J FB7M9;2BVJZY 7P�N3 HBJL2;J EZO >BO@FKJL2cJ 247:FB7IFB7 9;2BVJZY 7P�L3 7 943N24O VJ � YZJ S 3NO@�N7P<f9;EZ3LOKJLFKJf >KJUOBFB3 O@7 S 7:<4<BVJL24EG33[�� AC7:FBEZFKJ�FB3yJU9;24JL<43�Y 3NE3Y 7:EG9|J�JU942;JMdmV7P<nFB7 8�"�V = �DBDf;> ��1�X ��<:�� �N[ �.�Z` S 3NA3I<83�Y 9 � JU247� � � � ` FBEZ<8H�3NO VX dN7:Y 7PA f >BJLY^f >B7:2 F@EZ<89424EG?B>BE8QSUTJL3XkEZO >)bI[

������� ��� � � �����

1�JL2;J=AC7:FBEZ2 JC?BJLOBFKJ=FBEZ<8H�3NO VX dN7:Yk>@9;EGYZEp]P3N> � <47c3CHB243N�L2;JLACJ �� ��"$# t � � f >B7 9;7:A S 3NA=3C>@A+JF@7 <4>KJL<MA=7PF@EZFKJL< JAdLJZ] TJL3�7eY 7:9;E dUJ FB3G� � 1 [m{^7:<89;J�A+JLO@7PEZ24Jm`�3N? 9 V7PA � <87 J�?KJLO@FKJ�FBEZ<8H�3NO VX dN7:Y7:O}9;247�JL<mA VJZf >@EZOKJL<L`P5BVJ_f >B7 3 9;JLACJLOB�B3�FKJ 54JLOB7PYZJcFB3u� � 1�V7vJ658>B<f9|JLFB3yJL>@943NACJU9;E S JLA=7PO}9;7 HBJL2;J> 9;EZYGE^]PJL2v3 A VJ b EZA=3 FB7M287 S >@24<43L< F@EZ<4H 3NO VX dN7:EZ<cFB3 7PO@Y�J S 7�`k3N> JU9 V7 FKJ 247:FB7�` S JU<43 3/iK>)b 3$> 9;EZYGE^]:7>@A S JLA=EZO@�B3 S 3NA d VJU24EZ3L< 7POBYZJ S 7:<#[

�v3yA=7P<8AC3^947PA=H�3�7PA f >@7 3 �� � "$# 7:2;J�>B<;JUFB3 S 3NA=3�Y 7P2424JLA=7PO}9|JcFB7 A=7PFBEfQSLTJL33`L7PYZ7 9;JLA ?nV7:AY 3LER>B<4JLFB3 S 3LAC3oY 7:2424JLAC7:O}9|J+�N7:2;JLF@3N2;J+F@7 9;2KVJ Y 7P�N3 �v{c1���Ws� 6 " > ���<:9^ �;: � Oe:&� ^ : � Ee[��vH�7:<;JL2F@7P<4<4J S JL24J S 947P2PVX <894E S J FB7C942KVJZY 7:�N3�<87P2 >BA A=3 F@7PYZ3 <4EGACH@YZEZ<f9|J HKJL24J�J$ACJLEZ3L24E�J FB3L< 9;2BVJZY 7P�N3L< FKJ� O}947P24O@7:9 JU9;>KJUYZA=7PO}9;7Z`vH 3 F@7�<47P2 S 3NOB<4EGFB7P24JLFB3 >BA ? 3NA AC3 FB7PYG3 HKJL24J 9;2KVJ Y 7P�N3N< F@7 dL3w] O TJL3S 3NA=HB24EGACEGFKJ 3N> O TJL3 S 3 F@E � S JLFKJm`K7yJU9;EGOB�N7�3+<87P>$3N? 587:94EpdL3+FB3=9;2KVJ Y 7P�N3=FB7�Y >BOBFB33` f >B7 V7y7:O S �B7P23 S JLOKJLY?[

1�JL2;J S JUY S >@Y�JL2 3��UOe:Z: ��yFKJ�9;24JLOB<4A=EZ<8< TJL3m`�9|JLA ?nV7PA >B<4J � <87 J7Y 7P2424JLA=7PO}9|J �� ��"# [ �UOe:I: ��V7 S JLY S >BYZJLFB3 JU>@9;3NACJU94E S JUAC7:O 947yH 7PYG3 <47:2ld EZF@3N2 �� � "$# S 3NA=3 7:<4H 7 S E � S JUFB3 7PA twt�� ` 7 3odUJLYZ3L2 V7H 3N<f9;3IOKJI<;JBVX FKJMFB3 S 3NOB<83NYZ7�FB3IHB283N�N24JLA+J)[

�����"$# S 3NOB<4EG<8947 7PA�>BA S YZEG7PO}9;7 7s>BA�<87P2 d EGFB3N2L[0� 9;24J.d�V7:<`F@7 3NHRQSUT3N7P<�FB7sYZEZO@�KJ�FB7 S 3NACJLOBFB3F@7:9;7:24A=EZOKJ <47=>BA OB3.dL3�HB243 S 7:<4<83�<47:2KVJ$>@A S YZEG7PO}9;7I3N>">BA <47:2ld EZF@3N2#[ �v<y3LHRQSLT3N7:< FB7=YZEGOB�KJ FB7S 3NACJLOBFB3vFB7:947P24A=EZOBJLA�9|JLA ?sV7PA <47n3�HB283 S 7P<8<43 S YGEZ7:O 947�`U3N> <87P2ld EGFB3N2#`L<47P2BVJ�247:Y�JU94EpdL3�J >BA 9;2KVJ Y 7P�N3� � 1�`N3N>I�v{c1 [w� <87P�N>@EZ2�7:<89 TJU3c3N<�HB28EZO S EZHKJLEG< S 3NA+JUOBFB3N<�> 9;EZYGE^]PJLFB3N<aHKJL24JcJL<�A=7PFBEGFKJL<R7 �L7P2;J QSLTJL3F@7�942KVJZY 7:�N3=��{c1�[

' �

Page 49: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!�� � �*68> ��'SR R -;"*')+�,.-;>N@�'�4 '�@�<e/132-34

� ���"7/��� ��" ���!#�� ��� �-��� ��� ��"# �

� �$�������� � ���!# � ��� � ��� � ��"�� � ���"7/��� ��" "���� ��"# � � "���� ���"�7/��� ��" ���!# � ��� ��(����� ��"# � � �

� �$�������� � ���!# � ��� ��(��� ��"�� � ���"7/��� ��" "��!� ��� � ������� U-A$�(���� �� �� ��"# � � "�� ���+U �

V~�EGACH 3N289;JLO}9;7 O@3L9|JL2Xf >B7 3 OB3NA=7 F@3"283L9;7PJLFB3N2 �82 � � FB7LdL7$7:<89|JU2C287P�NEG<89;24JLFB3 OB3"JL2gf >BE dN3���������'� � ��� ��)`�ACJLH�7PJLOBFB3 7:<4<87 O@3NAC7�O@3 7POBFB7:247 QS 3 �i1�FB3 243L947WJLF@3N2 � ��` S JL<43 S 3LO 942KVJL28EZ3 37:OBFB7:247 QS 3o�i1 F@7LdN7 <47:2v> 9;EZYGE^]PJLFB3 OB3IYG>B�}JL2 FB3 �82 � �3[

�/<47:�N>BEZ2 9;7:AC3L<$J�<;J@VX FKJ FB3 S 3NOB<83NYZ7 FB7 S 3NACJLOBFB3�FB3�<47P2 d EZFB3N2 f >B7 S 3NO}9 V7:A 3N<$FBJLFB3N<287LY 7:247PO}947P< �J H�7:24FKJm` JL3 �UOe:Z: ��I7 �J"H 7P2 S 7PO}9;JL�N7PA FB7 HKJ S 3L9;7:< ��{c1�7:O}9;247:�N>B7:<#[ � H 7P24FBJ"FB7HBJ S 3L947P<�V7CFB7:947 S 9;JLFKJ JU942;JMdmV7P< FKJAY JUYG9|J FB7 <87#f �>B7PO S E�JLA=7PO}943�FB3N< HKJ S 3L947P< 287 S 7:?BEZF@3N< FB3"iK>�b@3�v{c1 [� S 3L24247:A H 7P24FBJL<�f >BJLOBFB3=� VJM<;JLY 9;3N< OBJ=O >BA=7P24J�QSLTJL3IFB3L< HBJ S 3L947P< 247 S 7P?@EZFB3N<L[

" ��� �*� "���� �����"$# �� � � � �T��$��"7 ��" ��� ���� �(� � � ���C(��� ��"$�TU�Q�Q �����������7/� � �+J�� &�LK ��6 � �!������� �$"����( (��� ����#$#���" ��E��9� � �K , � 6 ���4 J�8 ��������� "�� ��" �+U�Q�Q � � ��� � ������� � � ���� �*��U ��" � ����J�QJ4 ���8 � ������"7���� �"����/ #�� " � ����� � � � �� ����$��� " � � �� �'� � ����� ������ �"�� �( 4 J�8PQ9� Q��?�G�5Q �!�5J�A � ��Q0�5Q)A$�(���� �� CQ9� %�J�Q �( Q � %�� � Q�� �4 J�8 �!� Q�� �0�5Q �!�B�>A � K/�5U)A$�(���� �� CU9� S�S�L �( L � %�Q � ��U�� �4 J�8 �9� Q�� J/�5Q �!� �)A � S0� &�A$�(���� �� CQ9� &�S�L �( +� � %�Q � �9�5U�� ������4 J�8PS9� Q�� ��Q9� Q �!� �)A � ��Q0�5Q)A$�(���� �� CQ9� %�Q &!�( Q � %�Q � Q�� �4 J�8PQ9� Q�� ��Q9� Q +���9�5J�A � S0� K�A$�(���� �� CQ9� %�Q &!�( & � %�Q � � �!� &�� �

'&>

Page 50: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!�� � '*6 K�4 $�4�&=4�.�<=-

� ��� � ( � ��� �� � ���

1�JL2;J <87+287WJLYGE^]WJU2 3L<y9;7:<8947P<"V7=OB7 S 7P<8<KVJL28EZ3�>BACJ 943NH 3NYZ3N�LE�J FB7C247PF@7of >B7 H 7P28ACE 9|J A V>BY 9;EGHBYZ3N<S JLA=EZOB�B3L<c7PO}9;287+J 3N24EG�N7PA 7I3 F@7P<894EZOB3 7Xf >B7C3L< S JLA=EZOB�B3L<�JLHB247:<47:O 947PA S JU2;J S 9;7P2PVX <f9;E S JL<�FBEpY 7 �287PO}9;7:<#[��v7:<89;JL< S 3NOBFBEfQSLT3N7:<IV7 H 3N<4<PVX dN7:Y;Y J�]P7:2`7:OB�N7:OB�KJL28E�J�FB7 942KVJZY 7:�N33`}287WJLYGE^]WJUOBFB3�?KJLYZJLO S 7PJLA=7PO}9;3F@7 S JL28�}J�OB3N< A V>BY 9;EZH@YZ3N< S JLACEGOB�B3N<L[�{^7P<f9|J�ACJLOB7:EZ2;J 3N< 7:OBY�J S 7P< F@7 H�7Lf >B7POKJ�?KJUOBFKJm`�H 3N2 V7:AF@7 ?KJLE b@J"Y�J 9W�7PO S E�J)`n9|JUA ?nV7PA <87P2 TJL3 >@94EZYZEp]WJLF@3N<#`�Y JU9;35f >B7�O TJL3"<47:24E�J H�3L<4<PVX dN7:Y 9 TJL3*Y J S EZYGAC7:O 947<87PA JC7:OB�N7:OB�KJL28E�JIFB7y942KVJZY 7:�N3CF@EZ<4H 3NO VX dN7:Ya7:A�>BACJ=287PFB7c� 1� ��` S 3NAC3 V7 S 3NA=7PO}9|JUFB3 JLF@E�JLO}9;7Z[~�<8<47P<y7POBYZJ S 7:<yF@7=A=7PO@3N2�?KJLOBFKJ <47:2 TJL3 >@94EZYZEp]WJLF@3N<^HKJL24J JLHBYZE S J�QSUT3N7P<�f >B7=O TJL3 247Lf >B7P287PA A >BE 9|J?BJLOBFKJm`RA+JL<uf >B7+9;7:OB�KJLA OB7 S 7:<4<4EGFKJLFB7:<MFB7 >BA/JU942;JL<83�7?�UOe:Z: �� S 3NA dLJUYZ3N287P< FB7PO}9;283�FB7+>@A+JY JUE b@JMFB7:947P24A=EZOBJLFKJm[

V~�EGACH 3N2f9|JLO}9;7y7eb HBYGE S JU2^H�3L2gf >B7M3 7POBYZJ S 7 FB7I?KJLE b@J ?KJUOBFKJ V7M38f >B7IH�3N<8<4>BE�A=7PO@3N2cJU942;JL<833[� <8<43 V7 S JL2;J S 9;7:2WVX <89;E S J�FKJc9;3NH 3NYZ3L�NE�Jm` 7eb EG<89;7:A S JLA=EZO@�B3N<mFB7 H�3L> S 3N<`<;JUYG9;3L<�f >@7vHB283NH 3N<4E 9|JLYGAC7:O 947947PA H 3N> S J ?KJLOBFBJm[8��943NH�3LYZ3N�NEZJ 7P<f9 VJ$EGYZ>B<f9;24JLFKJ OKJ �REG�N>B24J ���i[qt)[ ~�b EZ<f9;7:A S JLA=EZOB�B3L<y7:O 94247HBJL247:<s3N28EZ�N7:A � FB7P<f9;EZO@3N<�f >B7v3U9;EZA=E^]PJLA�>@A HKJL2 �JUAC7D9;243 FB7KG^3S�I[S��<8<4EZA ` FB7PH 7PO@FB7POBF@3 FB3if >B7v<47H@247:947POBF@7_Y JMdN3L247 S 7P2L` <87i54J=JU9;24JL<43I3N> ?KJLO@FKJMHKJL<4<4JLO}9;7Z` 3 S JUACEGOB�B3M7P< S 3NYG�BEZF@3=<87P2BVJ=FBE Y 7P287PO}9;7Z[

�vJL< 247PF@7P< S YZEG7PO}9;7:<#`B943 FB3L< 3L< S 3NA=HB>@9;JLFB3N287P<�f >B7_Y >@O S EG3NOKJLA S 3NA=3I7PA=EZ<4<83N2 7�247 S 7PH 9;3N2 FB7942KVJZY 7:�N3+7:<89 TJL3 S 3NOB7 S 9|JLF@3N< S 3LA 3C<47:>�247:<4H 7 S 94EpdL3 243L947WJLF@3N2�J 9;2;JMd�V7P<�FB7 >BA S 3NA >@9;JLFB3N2L`�3L> FB7>@A S JL? 3 � B�?>'���$ >@S �� �3[�� <4<43 Y 3NE�Y 7PEG943CHBJL2;J=7PYZEGACEGOKJL2sJC�BEGH V3L9;7:<47 FB3+�NJL24�}JUYZ3IFKJL<vAC7:FBEZFKJU< <87P23C7POBYZJ S 7y7PO}9;287 3 1`� S YGEZ7:O 947y7y3+<87P>�243U9;7WJUFB3N2#`N5BVJ f >B7 FB7P<f9|J+ACJLOB7:EZ2;JI7P<8<47 7:OBY�J S 7 7:<89;JL2KVJ+7:AA=3 FB3 �!�UX � �.$ � X [ � � ) �3`@H�3N<8<4EG?BEZYGEG9|JUOBFB3 3I7PO d EZ3=<4EGA >BY 9U�JLOB7:3MFB7�FKJLFB3L< ?@EZFBEG247 S EZ3NOBJLY [

������� ��� � okgn\���]su^eKwyxo`zw�g�h��g`]ndfokw� Y JLE bBJ F@7 7:OBFB7:247 QS 3N<��i1 JLYZ3 S JUFKJ HKJL24J S JLFKJI7POBYZJ S 7�V7�J ��S$�0�"��LK0� ��������%$3NO@FB7�3I947P2 S 7PEG243

? � 9;7�FB7 �KO@7�f >KJLY V7�3 7:OBY�J S 7�[`�s3LAC3�9;3 FB3N<n3N<s283L9;7PJLFB3N287P<�Y JZ]P7PA HKJU289;7 FKJ 287PFB7vFB3 YZJL?�3L2;JU9KV3N24EG3F@3Gn�� �u`a943 FB3L< 9W�7PA >BA 7PO@FB7P287 QS 3G�i1 FKJ 247:FB78n�� �u[ V>@YG9;EGAC3 ? � 9;7+FB3 7:OBFB7P287 QS 3�FKJ$287PFB7n���� S 3NOB<894EG94>BEZ2BVJ 9;JLA ?nV7:A 3)V>@YG9;EGAC3+?�� 947+FB3N< 7PO@FB7P287 QS 3L< FKJL< 247:FB7P<yFKJ 247PF@7+FB7I9;7:<89;7:<#[8�v<��<8EZA `�J A VJ�f >BEZOBJ �N24>@A+JL28E�f >@7 9;7PA/37�i1 ��� �/� ������� �����/� L OKJ$247PF@7 n�����947P2KVJ�3L< 7POBF@7P247 QS 3N<

' �

Page 51: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!�� � '*6 K�4 $�4�&=4�.�<=-

�REZ�N>@2;Jc���c[st)V���A ?BEZ7:O 947cFB7���7:<8947�[��S$�9�"�'LK0�"��J/�5L3` ��S$�9�"�'LK0�"���0�5L 7 �'S$�9�"��L�K0� � �!� L�OKJL<+EGO}9;7P2 Y J S 7:< ����@Q3` ����:��7 ���� �3`�f >B77:<89 TJL3 S 3NOB7 S 9|JUFKJL< JU< 287PFB7:< � �m` � t 7 t ��`a287P<8H�7 S 9;E dUJLAC7:O}9;7�[ ��JC��JL?�7:Y�JC���c[��C7:<89 TJL3 JU<�Y JUE b@JL<FBJL< 247PF@7P< FB3=JLA ?BEG7PO}9;7�FB7c9;7:<8947P<#[

�vYDV7PA�FB7�Y >@O S EG3NOKJL2 S 3NA=3 >BA S 3NA >@9|JLF@3N2�� 1���I` >BA ��@��`@3L< 243L947WJLF@3N247:<s9|JLA ?sV7PA 7P<f9 TJL3�BJL?BEZYGEG9;JLFB3N<sJ:Y >@O S EG3NOKJL2 S 3NAC3I>BA%243L947WJLFB3L2��i1 OB3N28A+JLY?[��v<4<4EGA 243U9|JL< JLEGOBFKJ <47:2 TJL3CJ S 7P<4<4JLFKJL<HBJL2;J^3c283L9;7PJLAC7:O}9;3cFB7 HKJ S 3L947P<�f >B7 O TJL3c<87i54JLA�243L94>BY�JLF@3N< S 3LA�3_� 1��� OKJc?�3N28FKJ^FB3cFB3LA VX OBEZ33[^< iK>)b 3N<^O TJU3+ACJL2 S JLFB3N< S 3NA 3+2BV3L9;>@YZ3o� 1� �rd TJL3+<47P�L>BEZ2 3N< S JLA=EZOB�B3L<vFB7D9;7:24A=EZOKJLF@3N<vH 7PYZJL<9;JL? 7PY�JU< FB7�243L947WJLA=7PO}9;3X�i1�[

FB3LA VX OBEZ3�� 1��� V7 S 3NOB<f9;E 9;>kVX FB3vH 7PYG3N<a243L947WJLFB3L247P<R� ��`L��t)`N� � 7 ��x3`Zf >B7sJvYGEZOB�KJ 9;24J S 7 54JLFKJS 3NO}9;3N28OKJm`�dL7i54J^��EZ�N>B24J����i[qt�[�1RJU2;J S 3NOB<89424>BEG2�>@A�FB3LA VX OBEZ3 FB7nFBEpY 7:247PO S E�J QSLTJL3vFB7s<87P2ld EfQS 3N<L`�Y 3N2;JUA> 9;EZYGE^]PJLFKJL<IJLYG�N>BACJL<IFKJL<XY >BO S EZ3NOKJUYZEZFBJLFB7P<IFB3E� 1����HKJL24J 9;3L24OKJL2=ACJLEZ<M7�� S EG7PO}9;7�3">B<43"FB3N<

& �

Page 52: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!�� � '*6 K�4 $�4�&=4�.�<=-

�RJL? 7PYZJ:���c[��wVm~�OBFB7P287 QS JLAC7:O}9;3o�i1�[� 3L947WJLFB3L2 ~�OBF@7P247 QS 3CFKJI� 7:FB7� � � ��t ��S�9� ��%�K/�"��� ��� %��t � � � ��S�9� ��%�K/�"��� ��� %� � � ��x ��S�9� ��%�K/� �$� ��� %��x � ��t ��S�9� ��%�K/� J�Q ��� %��x � � � ��S�9� ��%�K/� � � ��� %247:FB7 �.v ��S�9� ��%�K/�"��Q ��� %247:FB7 ��� ��S�9� ��%�K/�"��J ��� %247:FB7 �Mx ��S�9� ��%�K/�"� %���� %247:FB7 � ��S�9� ��%�K/�"��U ��� %

287 S >B24<83N< FKJ 247:FB7 JL3 A=7P<4A=3 9;7PA=H 3$7:A f >@7+�}JL24JLO}9;EZJ J f >KJLYZEGFKJLFB7MF@7+<47:2ld E8QS 3rY 3N28OB7 S EZFKJ JL3>@<4> VJL28EZ33[ ~�A>BA FB3NA$VX OBEG3+FB7IFBE Y 7P247:O S EZJ�QSLTJU3 FB7M<47:2ld E8QS 3N<�{��I`kJ FBE Y 7P247:O S EZJ�QSLTJU3 HB243LHB24EZJLAC7:O}9;7F@EG9|J <87�Y J�]�JU942;JMdmV7P< FKJ ACJL2 S J�QSLTJL3MF@3=FBJU9|JL�L2;JLACJu�i1 S 3NA%>@A%EZF@7PO}9;E � S JLF@3N2�f >B7�FB7:947P28ACEGOKJL2KVJ)`O@3N<vH@2KV3Zb EZA=3N< <;JUYG9;3L<#` f >KJLEZ< 247 S >B28<43N<v7P<f9 TJL3CFBEZ<8H�3NO VX dN7:EZ< HKJL24J=7:<4<87 HKJ S 3L9;7 A+JU2 S JUFB33[��vJC287PFB7F@7 947P<f9;7P< S 28E�JLFBJ O TJL3 7eb EZ<f9;EZ2BVJ J ACJL2 S J�QSLTJU3�FB7 FKJU9|JU�N2;JLACJL<:�i1 S 3NA=3 7:A >BA F@3NA$VX OBEZ3�{��I[� F@EpY 7P287PO S E�J�QSUTJL3 7IJ �}JL2;JUO 94E�J FB7 G^3S��<87P2KVJ8Y 7PE 9|J JU942;JMdmV7P<�FB3N<_��@1�<#[X�vJ ?�3N28FKJ FB3 FB3NA$VX OBEG3�$1���I`}3^942KVJZY 7:�N3�<47:2KVJc7PO S JLA=EZOB�KJUFB3cHKJL24J^>BA�FB3N<���@1�<L[m{^7PH 7POBFB7:OBFB3�FB3_��@1"HBJL2;J�J�f >KJLYB3iB>)b 3NY 3NE�7PO S JLA=EZOB�KJUFB33`B7:OBY�J S 7P< FBE Y 7P287PO}9;7:< <87P2 TJL3C> 9;EZYGE^]PJLFB3N<n7c247 S >B24<83N< 247:<47P2 dUJLFB3N< FBEpY 7:247:O 947P<<87P2 TJL3 S 3NOB<8>BACEGFB3N<L[m{^7P<89;JMA+JLO@7PEZ24Jm`@H 3 FB7�� <47�Y J�]P7:2 7POB�L7POB�KJU24E�JMFB7c942KVJZY 7:�N3I7 F@EpY 7P287PO S E�J�QSUTJL3MFB7<87P2 d EfQS 3CJL3IAC7:<4A=3M9;7PA=H 33`B<47:A 247PJLYZA=7PO}947 >@<;JL2 J=JL2gf >BE 9;7D9;>B24J MO PRQ ��<S.[

��EZ<;JUOBFB3CJIF@EpY 7P287PO S E�J�QSUTJL3MFB7�<47:2ld E8QS 3C3L<���@1�<�Y 3N24JLA S 3NO �K�N>@2;JLFB3L< F@7 ACJLOB7:EZ24JMJIF@EZ<4H 3NOBE��?@EZYZEp]WJL2 3L<�243U9;7WJUFB3N247:<�FB7y?�3L24FKJXd VJU24EZ3L< S JLACEGOB�B3N< JU9 V7 >BA FB7:<894EZOB33[��a3NACJLOBFB3 S 3NA=3+7Ub 7PA=HBYZ33I283L9;7PJLFB3N2 � � S 3NA=3M3N24EG�N7PA�7 JM247PF@7 �Mv S 3NA=3MFB7P<f9;EZO@33[m~�<4<47 243U9;7WJUFB3N2 FB7edN7�9;7P2 H 7PYG3IAC7:OB3N<F@3NEZ< ��@1�<+HKJL24J�J�287PFB7 �.vm[ � A ��@1 FB7edN7�H 7P2 S 3N28247:2+3 S JLA=EZOB�B35f >B7�FBEG<4H 3NOBEG?BEZYGE^]P7+A+JLEG<?BJLOBFKJm[ ~m<f9;7 ��@1�<47:2KVJ$> 9;EZYGE^]PJLFB3 HKJL24J HBJL<4<4JL2 943 F@3$32iK>)b 3 O TJU3$HB28EZ3N28EG9KVJL24EG33[N�3N>@94243r��@1F@7LdN7v<47 HB287P3 S >BHKJU2n7:A�HKJL<8<;JL2`H�7:YZ3 S JUACEGOB�B3�f >B7vH@243NH 3N2 S EZ3NO@7 3yA=7POB3L2mJU9;24JL<43 H�3L<4<PVX dN7:Y [�1�JL2;J

& �

Page 53: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

!�� � '*6 K�4 $�4�&=4�.�<=-

EG<4<83 FB7LdL7�� <47c3L94EZA=E^]WJU2�7POBYZJ S 7:< H�3L> S 3 > 9;EZYGE^]PJLFB3N<L` A=7P<8AC3uf >B7^FB7vH�3N> S J ?KJUOBFKJm` 7^7P< S 3NYG�B7P2n>BAS JLA=EZOB�B3�f >B7 HKJL<8<47 H�3N2m>BA A=7PO@3N2�O^V>BA=7P243�FB7 <;JUYG9;3L<#[�~�<8<47�<87P�N>@OBFB3c��@1 <87P2BVJy3 247P<8H�3LOB<KVJZdL7PYH 3N2 7PO S JLA=EZOB�KJU2 3L< iK>�b@3L< S 2PVX 94E S 3L< O@3$9;7:ACH 3 7CHB28EZ3N28EG9KVJL24EG3N<#`kFB7:<4FB7of >@7+O TJL3 OB7 S 7P<8<4E 9;7PA/FB7A >BEG9;J ?KJLOBFKJIHKJL<8<;JLO}947�[

� 942;JMdmV7P< FB7:<4<47:<� � 1m<s247P<f9;28EG9;3L< Jy>@<4> VJL28EZ3N<nHB24EG3N24E 9 VJL28EZ3N<L` S YGEZ7PO}947P<s<87P2 TJL3cY JMdN3N287 S EGFB3N<n7�9;7:2 TJL3�NJL2;JLO}94E�J+FB7 G^3S��[ � <4<83$<87P2BVJoY 7PEG943 JU9;24JMdmV7:<cFB7P<8<47:< 9 V>@OB7PEG<^7P<8H�7 S VX � S 3N<L`�f >@7=> 9;EZYGE^]PJL2 TJL3=247 S >B28<43N<FBJ=287PFB7�f >B7 O TJL3I7P<f9 TJL3=FBEZ<8H�3LOkVX dL7PEZ< HBJL2;JM3I>B<4> VJL24EG3 S 3NA >BA [

&(�

Page 54: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

� ��� ���� ��� �

��� � ����� � � � � ��� � � � � � ���� ���� �

� ���! " !� # �

$&%('*)+%-,/.10324 )6587:9;'(<.=9>[email protected]:AB'6.=C89D'E91'GF+%('*587:)6.1C89D'E9DHI)6A:C89D'�?I9D'�)6%J'*)6%J'KC8%&L;[email protected]:[email protected]%MC8%&NO%JF*PQA*R,[email protected]:AB'+.1C89V,J9DWX9Y.ZABWX087B%JW[%J?\)].^R,=<.19VC891'_W[%J,/.1?8A:'+WX9D'`CI%aLb9\Nc.158WX%(?\)].Y.Z%ed@,(Agf%(?8,[email protected]*%(C8%CI%JPQABC89i.>0^9D'*'+A:H8AB7:[email protected]%[email protected]?IkD%(?8l8.1F+AB.aC8%-mnF@2.=op%JkD98S�m�.1WZHq2%(Wr2%-C8%('*,(F*A:)69a?8%J'+'+%s,/.10324 )65I7B9b,(91W[991't)+%('u)6%('vC8%�C8%J'+%(WX0w%(?8l89xop9DF6.=W F+%(.17BA:y/.1CI9D'(z&%�,(9DWX9x.1'{op%(F+F+.1WX%(?\)].1'cop91F6.1W 5I'6.1C@.='v08.1F6..=7B,/.=?ER,/.1F-.YC8A|op%(F*%(?8,JAh.^R,=<.19}C8%>'+%(FuPQA*R,(91'&%a.Y%(?IkD%(?8l8.1F+AB.XC8%b)+F@2.=op%JkD98S

~ ��� �����x�b���E�b����� ���b�E�b� ���;�����

� '-)6%('u)6%J'�C8%>)/f%JW�,(9DWX9[91HQ�*%J)+A:PD9[.},([email protected]+.^R,1<.19XC89XC8%('*%(WX0^%J?8l89cC8.XF*%(C8%a'+%JW�9X'+5I0^9DFu)6%.=9����K��NwzE,(91?8'+A:C8%(F+.1?8C89�C89DA:'V,(.1'+9D'J��9�F*91)6%(.1WX%(?\)69�C891'[email protected],J91)6%J'}.=)6F+.�PG2%J'YC89�,/.1Hw%OR,(.17BlI9����%}[email protected]+%JC8%X,(9DW�'*580w9DF*)+%c���K�nN^z�0w%(F*W[A|)6AB?IC89{%(?8k1%(?8l@.=F+Ah.tC8%Y)6F82.=op%(k19v%[L;9�N^S $&9¡F*91)6%(.1WX%(?\)69���¢.1'bF+9=)].1'b'J<.19v.108F+%J?8C8A:[email protected]'>.=)+F6./PK2%('bC89t08F*91)69Q,(9D7:9cC8%YF*91)6%(.1W[%J?\)69{PD%e)69DFbC8A:'*)£f.1?8,(AB.{¤&���!¥§¦=¨=©%v%('u)].1CI9ªC8%v%(?I7h.1,J% � NI�K«¬¥§¦£­1©gSxm�.1WZHq2%JW 2%¡[email protected]:'6.1CI9�9�C8%J'+%(WX0w%(?8l89ªC@.�F+%(CI%¡,J9DW®%('*'+%J'0IF+91)+9O,J9D7B9D'Jz8,(91W[0@.=F6.1?8CI9Y,(9DW¯9XC8%J'+%(WX0w%(?8l89XC89����K�nN^S

� '�08.1F£f.1WX%J)+F+9D'-C8%ZL;9�Nv'J<.19�WX9D?8A|)69DF+.1C89D'[email protected]+%JC8%V,J9DW�%V'*%(W�9{���K�nN^Sw�°'+'*9±2%iF*%/.17:ABy(.1C89

Page 55: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

����������� ������� �����%.����$.�� ����������� ����� ��� �

08.1F6.>PD%(F*A:d@,(.1F`[email protected],e)69>%;.a%Jop%J)+A:PQABC8.1C8%&[email protected]|op%(F*%(?8,JAh.^R,=<.19iCI%�'+%JF*PQA*R,J9D'`%eop%J)[email protected]@.ISKTGW F+%J7h.^R,=<.19!.a%(?8k1%(?8l@.=F+Ah.aC8%s)+F@2.=op%JkD98zQ9Y���K�nNx2%&58W�.>op%(F*F6.1WX%(?\)].aW�.=AB'#"@%%$ 24 PD%(7^[email protected]+.i9Y.1CIW[A:?8AB'u)[email protected]:W[0I7B%(WX%(?\)6.^R,1<.19}C8%i0^917 24 )+AB,(.1'_C8%Z.=7B9Q,/.^R,=<.19}C8%VF*%(,(5IF+'+91'�)69DF*[email protected]?8CI9c.[F*%(C8%iW�.=AB'-%Jd@,JAB%J?�)+%1SsTG'+'+%.=58W[%J?\)[email protected]%ed@,(Agf%(?8,JAh.v,/.1F+.1,J)+%(F+A:y/.t.�TG?8k1%(?8l@.=F+Ah.tC8%}mnF@2.=op%JkD98zn%X)+%(W�,J9DW[9v,(91?8'+%'&�(53f%J?8,(AB.¡9.=58W[%J?\)69}C@.},/.10@.=,(ABC8.1C8%a.1kDF*%(k\[email protected]*%(C8%=S

~ �*) +-,V�.,0/21/�.,Z��� 35476G�849,Z�., ��� :��Y���;,Z���76

< ,([email protected],[email protected]%t.1kDF+%Jk\.1C@.�CI%{58W®F+9=)6%/.=C89DFª2%{58W[.�WX%(C8A:C@.�%(W®�¡H808' 6g�v%(k\.1HIA:)6'Y0w9DFZ'*%%=k158?8C89�> SMTK7B.�2%a.9&�5@.=?�)+A:d@,(.^R,1<.=9XCI%?&�5@.=?�)+9[9}F*91)6%(.1C89DFc2%b,/[email protected]>C8%>%(?8,(.1WXAB?8l@[email protected],J91)6%J's%J?�)+F+%.='s'*[email protected]'�A:?\)6%(Fuo .1,(%J'(SA@b%(F+.17BWX%(?\)+%1z 9D'-o .=)69DF*%('A&�58%V7:ABWXA:)6.1W %('+'*%{24 ?IC8AB,J%aCI%iC8%J'+%JW[0w%(?8lI9cC8%a58WF*91)6%(.1C89DFa'(<.=9�.1'+'*9O,JAh.1CI9D'V.v,/.1F+.1,J)+%(F(24 '*)+AB,(.1'iCI9�[email protected]*CB`.1F+%=S < ,/.108.1,(A:[email protected]%[C8%�08F*9O,J%('*'6.1WX%(?\)69CI9vF*91)6%(.1C89DFJz3kD%JF6.17:W[%J?�)+%ZF+%J7h.1,JAB9D?8.1C89{.{'+58.{opF*%C&�(53f%(?I,(Ah.cCI%Y9D0^%JF6.^R,=<.19tC89{08F*9O,J%('+'+.1C89DFJzb2%Y58W0w9D'*'/24 P1%(7@k\.=F+k\.17:98S���.1'M.;opF+%'&�(53f%J?8,(AB.;C89>08F+9Q,(%J'+'+.1C89DFK0w9OC8%_? <.19b'+%JFMCI%J)6%JF+WXAB?@.=?�)+%_C8%(0w%(?IC8%(?8CI9C8.�.1FD&Q5IA:)6%e)658F+.[C89[[email protected]*CBj.=F+%V%iC8%?&Q58.17�'*%��+.c.X,/.108.1,(A:[email protected]%aC8%a08F+9Q,(%J'+'6.=W[%J?�)[email protected]'sAB?\)6%JF*o .1,J%('CI%[F*%(C8%=S < ,/.10@.=,(ABC8.1C8%}C89�%J7B%JW[%J?�)+9¡,J9DWZ5I)6.1C89DFJz�&Q5I%Xo .1yX9v%(?8,(.1W[A:[email protected]%(?\)+9vCI9D'i08.1,(91)+%('CI%�58W[.ªAB?\)+%(F*o .=,(%�.ª9D5I)6F+. 2%�9D5O)6F+9ªk\.1F*k\.17B9IS TG'+'+. ,/.108.1,(A:[email protected]%¡0^9QC8%�'*%(F{.=58W[%J?\)].1C@.ª'+%�..=FE&�58A:)+%J)+58F6.�0w%(F*W[A|)6A:F&08.1F6.17:%(7:AB'+WX9X?@.�,(91WZ5I)].wR,1<.19cCI%[email protected],J91)6%J';%(?\)6F*%}.1';A:?�)+%(Fuo .1,(%J'(Sb��.1F6.c%J'+'+%08.1F6.17:%(7:AB'+WX9c.{.=FE&�58A:)+%J)+58F6.{?3<.19{0w9QC8%Y'+%JFb58W H@.=F+F6.=W[%J?�)+98z�9DH\PQAh.1WX%(?\)+%1z�58W[.cW�.£)6F+A:yVC8%Y,J9F=WV5I)].^R,=<.19�2%j58'+.1C@.;?8%J'+'*%&,(.1'+9IS�TG'+'+.�2%`58W�.;0IF+%(9Q,(5I0@.^R,1<[email protected]+91)+%/.1C891F+%('GCI%_.17:)+9;C8%J'+%(WX0w%(?8l89%>C8%a.1FD&�58A:)+%J)65IF6.1'-08F*9D08F+A:%J)@2.1F+AB.1'>¥ ¦HG © S

� 'MF+91)+%/.1C891F+%('q5I)6A:7BA:y/.1C891'�'(<.19V�JI`'(zI%&0w9DF*)6.1?\)69a?3<.19a0^9D'*'+58%JW ,/.1F+.1,J)+%(F(24 '*)+AB,/.='qC8%&[email protected]*CB`.1F+%.=0^%JF*op%(AuR,(9\.=C89U08.1F6. 9UF*91)6%(.1WX%(?\)69xC8%�[email protected],J91)6%J'(S � 0IF+9Q,(%('*'6.1WX%(?\)+9±C8%�)69QC89D'v9D'[email protected],J91)6%J' 2%,J%(?\)6F+.17BA:y/.1CI9�?I9ª08F*9O,J%('*'6.1C891FXC8.�W±2.K&�58AB?8.�&�58% 2%t58W®0w91)6%J?8,(AB.17jk\.=F+k\.17:98S mn9OC8.1'X.1'}087h.1,(.1'CI%{F+%(CI%{'+%{,(91WZ58?8A:,/.1W�,(91Wr9�08F*9O,J%('+'+.1C89DF}.£)6F6./PG2%('YCI%{58WrH@.=F+F6.=W[%J?�)+9��JI`�]zL&�58% 2%c9D5I)+F+9kD.1F+k\.=7B9{%(W 0^91)+%(?8,JAh.17 S < C8%Jd@?IA*R,1<.=9vCI%7&�5@.=7M9{o .=)+9DFb7BA:W[A|)].1CI9DFsC8.v,([email protected],[email protected]%[.=kDF+%Jk\.1C@.{C89F*91)6%(.1C89DF`%>.1'n�*58'u)6A:d8,/.=)+A:P=.1'`08.1F6.V)6.17gzO?3<.19Y'(<.=9}.1H^[email protected]'j?8%J'+'+%b)+F6.1H@.=7Bl898zQ%b?3<.19Zo .=y(%(W [email protected])6%CI%('*)+%�%J'*)65IC898SKTG'+'*%s7:ABWXA:)6%[2%2&�5@.=?�)+A:d@,([email protected]%[email protected]'+.1W[%J?\)69VCI9D'M.1F+kD5IW[%J?�)+9D'KF+%eop%(F+%J?\)6%('j.19D')+%('u)6%('-%>.1?_2.17BA:'+%('qC8%bC8%J'+%(WX0w%([email protected]*%(C8%=SqTG'*'6.YW[%JC8A*R,=<.19�2%�op%JA:)].Y.£)6F6./PG2%('_CI%;Pj2.=F+Ah.='j,(9D?I%%$^<9D%('

M�M

Page 56: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

����������� ������� �����%.����$.�� ����������� ����� ��� �

m2Ij� &�58%[email protected]'+'+.1W!0w%(7:9;F+9=)6%/.=C89DFL&�58%_'*% &�58%(FKWX%(C8A:FE.;,([email protected],[email protected]%_.1kDF*%(k\.1C8.IS���.1F6.�)+%(FG,(%JF*)+%(y/.&�58%a9}k\.1F*k\.17B9Y? <.19 2%>.},/[email protected],(A:[email protected]%>C@.='&A:?\)6%(Fuo .1,(%J'(z@9D' "@5 $I91's'J<.19[CIAB'*)+F+A:H85�24 CI9D'j%(?\)+F+%>)[email protected]'-.1'A:?\)6%(Fuo .1,(%J'_C89ZF*91)6%(.1C89DFJSKTK'*'+%b,J58ABC@[email protected]%(C8AuR,1<.19ª2%�ABWX0^9DFu)].1?\)+%1z�0^91AB'[2%;WV58A:)+9V08F*9 P`2.=P1%(7 &�58%,(.1'+9Y91'q)6%J'*)+%('jop9D'*'+%(W F+%(.17BA:y/.1CI9D'q5O)6AB7:ABy(.1?8C89a'+9DWX%(?\)+%;58W[.i087B.1,/.VCI% ��� �vH808'(zI,(9DW ,(%JF*)6%Jy/.Z9F*91)6%(.1C89DFq?3<.19Y.£)6AB?IkDABF*Ah.;'+58.ZW 2. $OA:W�.>,/.108.1,(A:[email protected]%sC8%�%J?8,/[email protected]`08.1,(91)+%('_.=?�)+%('jC8.V'6.=)+58F6.wR,1<.19C8.�AB?\)6%JF*o .1,J%1zG)69DF*[email protected]?8CI9�.�W[%[email protected] .17B'+.IS��;%JPQABCI9�.19�,(91?�)+F+9D7:%cC8%�"@5 $I9�C89�m2Ij�nz�,(91?Iop9DF+WX%'*%�.1C8AB,JAB9D?8. "@5 $O9D'(z;. ,([email protected],JABC@.=C8%�C8%�F+91)+%/.1F±2%�A:[email protected]:W[%J?\)6%�C8A:'*)+F+ABHI5�24 C@.ª%(?\)6F*%�91' "85 $O9D't%1z,J9D?8'*%C&�(58%(?\)6%JW[%J?\)6%1zK%J?�)+F+%{.='VAB?\)+%(F*o .=,(%('VC8%�F*%(C8%a�82. &�58%c%('*'+%J'0"@5 $O9D'V)+%(W 9DF+A:kD%(?8'a%cC8%J'*)+AB?89%J'+,J9D7Bl8A:C89D'tC8%�W�.=?8%(A:F6. .x5O)6AB7:ABy(.1F+%JW A:?�)+%(Fuo .1,(%J'¡C8A:'*)+AB?\)].1'Jz�%J7BABWXAB?8.1?8C89 . 0^91'+'+A:H8AB7:ABC@.=C8%�C89kD.1F+k\.=7B9>[email protected]:?\)6%(Fuo .1,(%=SKL;[email protected]?8CI9Z.>,/.10@.=,(ABC8.1C8%s.1kDF+%Jk\.1C@.>C89iF+91)+%/.1C891FMop9DFM.=)[email protected]'+91W�.>[email protected]')6. $I.1'&C8%a)+F6.1?I'+WXAB'+'J<.19XC89D'A"@5 $O9D'&m2Ij� ? <.19['*%(F82.[W[.1AB'-.17|)6%[email protected]@AB?8C8%J0^%J?8C8%J?�)+%VC@.[.1C8AuR,1<.19}C8%W[.1A:' "85 $O9D'(S < '+9DW[.>C8%s)+9OC@.='`.1'K)].�$8.='qC8%&)6F+.1?8'*op%JF(f%J?8,(AB.1'qCI%s)69QC89D'K9D'J"@5 $O9D'X2%�.a,/.10@.=,(ABC8.1C8%.=kDF+%Jk\[email protected]%J'+'+%-F*91)6%(.1C89DFJS < mE.=H^%J7h.��ZS ¦;W[91'*)6F+.b9D'�P=.17B9DF*%('K.1C&Q5IABF+A:C89D'�?8.1'GW[%JC8ABC8.1'G%(W ,([email protected]*91)6%(.1C89DF_C8.})+9D0^917B9DkDAB.IS < '_)]. $I.1'_op9DF+.1W�WX%([email protected]'-.£)6F6./PG2%('&C89},(91W�.1?IC89����� �� S

mE.1Hw%(7B.��ZS � �KTG'+0w%(,(A|d@,/.wR,1<.19Xmc2%(,J?8AB,(.XC891's¤-91)+%/.1C891F+%('JS�;AB'*0^91'+A:)+A:P19 ¤ � ¤�¦ ¤&¨ ¤&­

%J)+l � = C87:AB?�� C87BA:?�� ¨1,(9DW%J)+l � C87:AB?�� C87:AB?�� 0^,J?8%J) ¨1,(9DW%J)+l ¦ C87:AB?�� 0w,(?8%e) ¨1,(9DW 0w,(?8%e)%J)+l@¨ 0w,(?8%e) F+%/.=7:)6%�� = F*%/.17|)6%��

08F*9O,J%('*'6.1C891F �G­ � S��H@��&y < �����b�M¦�� < ��� � S ¦H@��sy �G­ � S���@��sy�1%JF+?8%J7 ¦OS§­IS ¦ � ¦QS§­8S ¦ � ¦OS ­8S ¦ � ¦QS§­8S ¦ �

�v%(WvSK¤ < � ¦HG��D�� G � ¦1�� ¦HG��\�� G � ¦1��

M"!

Page 57: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

����������� ���%����7��������� �� ��� ��� ����� ����������H�

m�.1H^%J7h.��ZS ¦O�JIj.108.1,(A:[email protected]% < k1F+%([email protected]'&¤-91)6%(.1C89DF*%('(S¤-91)6%(.1C89DF Ij.108.1,(A:[email protected]% < k1F+%(kD.1C@.¤ � � � ¦OS � �vH808'¤s¦ � ¦��IS �[�vH808'¤&¨ � ­��IS ¦X�vH808'¤-­ � �1­8S �[�vH808'

~ ��� �����x�b���E�b����� ���.,�� 1/�.,Z��� ��� �{� 6�� 1! /-�

< )+F6./PK2%('EC8.-CIA:op%(F*%(?8,JAh.^R,=<.19_C8%K'+%JF*PQA*R,J9D'>2%MA:W[0I7B%(WX%(?\)6.1C89-L;9�N;?89-C89DW¡24 ?IAB9-���K�nN^S < C8A|op%(F+%J? =,JAh.^R,=<.19 2%i%eop%J)658.1C@.�.£)6F6./PG2%('&C8%i�nNI�G'([email protected]'+'+.1?8C89�0^9DF-,(.1W[A:?8l89D'_CIAB'*)+AB?\)691'&%a,(91?8'+%'&�(58%J?\)6%(WX%(?\)+%5I'6.1?8CI9XCIA:op%(F*%(?\)6%J'_F+%J,(58F*'+9D'Jz@9D5t.=)6F+./PK2%J'[email protected]+%J'+%(FuP=.}CI%bF+%(,J58F+'*9D'_?89D'_F*91)6%(.1C89DF*%('JSq$s.Z'+%[email protected],1<.19�)+%(W =°'+%{9�0IF+9DH87:%(W[.�C8%{C8A:'+085I)6.�C8%{F+%J,(58F*'+9D'Jz &�58%t'+9DWX%(?\)+%{9�%J'+,(.17B9D?8.1C89DFYC89�F*91)6%(. =CI9DF;,(91?8'+%JkD58%Y'+917B58,JAB9D?@.=F(S;�n9DFQ2%JW %J'+'6.{'*9D7B5ER,=<.19�)+%(W�58W�,J58'*)+9t,(9DWX085I)6.1,(A:[email protected] ,(91?8'+A:C8%(F82.=PD%J7gS� 0I)+9D5 = '+%�?8%('u)6%�)[email protected]:l89�0^91F{5I)6A:7BABy(.1F�5IW�. )6910^9D7:9DkDAB. &�58%�0^9D'*'+A:H8AB7:A:)6%�.�C8A:op%JF+%(?I,(Ah.wR,1<.19 C8%'*%(FuPOAuR,(9D'[.=)+F6./PK2%('XC@.�5O)6AB7:ABy(.^R,1<.19�CI%¡W 2587:)+AB087:9D'i,(.1WXAB?8l891'(zM0^9DA:'}.1'+'*ABWr)6.1WZHq2%JW '+%v.=)+%(?8C8%v9D'F*%C&�58A:'+A:)+9D'_C8%a%(?8k1%(?8l@.=F+Ah.YC8%b)+F@2.=op%JkD98S

��.1F6.t)6%('u)].1Fi. &Q58.17BA:[email protected]%}C8%X'+%JF*PQA*R,J9�58W�%*$O%(WX087B9t)6F*A:PQAh.17V2%}5I)+AB7:ABy/.=C898S � WX%(,/.=?8AB'*W[9tC8%L;9�N�o ./PD91F+%(,J%t58W "@5 $I9�5I)+AB7BA:y/.1?IC89�F*%(,(5IF+'+91'[F*%('+%JF*P=.1C891'XC8.�F*%(C8%=S�TG? &�[email protected]?\)69�AB'*'+98zK9�9D5I)+F+9"85 $O9X)+%(W¯58W¬)6F6.£)].1WX%(?\)69}?891F+W[.17gzO5I)6A:7BABy(.1?8C89V9D'-F+%(,J58F+'*9D'&[email protected]<.198S

< '+A:)+5@.^R,=<.19�,JF+Ah.=C@.[0@.=F6.�9D'&)6%J'*)6%J';C8%ZLb9\N¡,(9D?I'+AB'u)6%i%(W�C89DA:';�JI`';[email protected]+%(CI%Z,(7:AB%(?\)+% ��� z «EA =k158F6.-� �ZS ¦OS � �JI#"�POA:C8%(91'+%(FuPD%JF%$�2%K9�,J7BAB%J?\)6%K08F+%eop%(F*%(?8,JAh.17 z=%M58'6.&F+%J,(58F*'+9D'�F*%('*%(F*P=.1CI9D'(z=%(? &�[email protected]?\)+99v�JI&"�)D$�$t58'6.t9D'bF+%J,(58F*'+9D'[email protected](<.198z &�58%9&�[email protected]�&�58%(Fb9D5O)6F+9 "@5 $I9t)].=WZHq2%(W�%('u) 2.t58'6.1?IC898S}��%J7h.)[email protected]+%JC8%1z %V0w%(7h.='�?8%J,(%('*'+A:[email protected]%J'aCI%[email protected][email protected]'�F*%(C8%J'b,(7:AB%(?\)+%('(z^W[91'*)6F+.1C@.�?8.�W�.£)6F+A:yCI%&CI%(W[.1?8C@.;C8%_)+F@2.=op%[email protected].=H^%J7h.��ZS§¨Iz\9>%(?I7h.1,J%-¤�¦�=°¤&­sd@,/.b,(91?8'*)6.1?\)6%(WX%(?\)+%s,J9D?8kD%J'*)6A:[email protected]%JPQABC89[[email protected]?8C8.XF*%C&�58%(F*ABC@.}C8%a¤s¦Y08.1F6.}¤-­8z8%>C8%a¤&­}0@.=F6.}¤�¦QS

TG'+'+.ZW�.£)6F+A:ysCI%s)6F82.=op%(k198zOm�.1Hw%(7B.��ZS§¨IzM2%�AB?\P1%(?\)].1C8.V,(9DW P=.17B91F+%('q.108F*9D08F*Ah.1C@.=W[%J?�)+%s%J'+,J9D7Bl8A =

M('

Page 58: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

����������� ���%����7��������� �� ��� ��� ����� ����������H�

CI9D'[email protected]&�58%-9a.1WZHIAB%(?\)+%_'+%��+.;o ./PD91F@2.=P1%(7w.;ABWX087B%JW[%J?\)].^R,=<.19;C89i���K�nN^S�TG'+'+.aW[.=)6F*AByjCI%j)6F@2.£op%(kD9? <.19x2%>)691)6.17BWX%(?\)+%bABWX0^9D'*'/24 PD%(7�CI%V'+%JF�.=087BA:,/.1C@.}.}F+%(.17BA:[email protected]%=z@0^%J7h.},/.10@.=,(ABC8.1C8%a%iC8A:'+0w9D'+AuR,1<.19X?@.)+9D0w9D7B9Dk1Ah.>C89D'_%(?I7h.1,J%('_0w9OC8%JW[91'jABW[.1kDA:[email protected]%('*'6.}F+%(CI%b,(9DWX9Z58W[.ZF+%JC8%b,(9DF*0^91F6.=)+A:P=.VC8%>.17:kD58W[.%JW[0IF+%('+.¡,J9DW '+%JC8%�%JW ,(ABC8.1C8%('aH8F+.1'+A:7B%(A:F6.1'JS � '>F+9=)6%/.=C89DF+%J'V¤s¦{%�¤-­8zn0^9DF>%*$I%JW[0I7B98zn'+%JF+Ah.=W.='b'+%(CI%('>[email protected]'b,[email protected]%('bC89t¤-AB9cCI%��D.1?8%(A:F+9c%XNw<.19t�E.15I7B98Sa�°'+'*9v0w9QC8%Z'+%JFq�*58'*)+A:d@,(.1C89tC8%ePOA:C89t.19?�25IW[%JF+9ZC8%b%J?87h.=,(%('`0^%JF*)6%J?8,(%J?\)6%('s.Z%('*'+%J'&F*91)6%(.1C89DF*%('Jz89 &�58%bC8AB'*0^91?8ABH8A:7BA:y/.>58W�.=7B,/.=?8,(%;CI%b58W'+.17:)+9¡08.1F6. &�[email protected] &�58%JFiCI%('*)[email protected]+%(CI%1S � '>F+91)+%/.1CI9DF+%J'V¤ � %[¤&¨Iz�0w9DF>9D5I)+F+9v7h.1CI98z 0^9QC8%(F*Ah.1W'*%(F-,(A:[email protected]%J'sCI9�NQ587�%>C89�$&9DF+CI%('*)+%1z�&�58%>'(<.19X7BA:k\.1C@.='jC8ABF*%J)6.1W[%J?\)6%b,(91W�N^<.19[�E.15I7B9}%a¤&A:98zIW[.1'? <.19�'(<.=9�7BA:k\[email protected]'>%J?�)+F+%c'*Agz�0IF+ABWX%(A:F+9v0^%J7h.vC8AB'u)=f.1?8,JAh.vkD%(9Dk1F@2.=d@,(.IzE0w9DA:'V58W[.¡%J'*) 2.¡?89�$s91F+C8%J'*)6%%J? &�[email protected]?\)69 .�9D5I)+F6.�%('*)@2.�?89 NO587gz`%�'+%JkD58?8CI9 0^%J7h.�o .17:)6.�CI%�C8%JW�[email protected]�82. &Q5I%�.1'[.=)6A|[email protected]%('%J,(9D?nf9DW[A:,/.1'Jz`,J9DW[%JF+,JAh.1A:'Y%vA:?8C858'u)6F*Ah.1A:'Y%('*)(<.19�,J9D?8,J%(?\)[email protected]'[?89�¤-AB9�%v%(W N^<.=9���.1587B9IS ��%J7B9WX%('*W[9iW[9=)6A:P19V.='qC8%JW�[email protected]'qC8%s)+F@2.=op%JkD9i'J<.19Z,J9D?8,(%J?\)[email protected]'j?@.='qF*%(C8%J'j,(7:AB%(?\)+%('MC89D'`F*91)6%(.1C89DF*%('¤s¦Z%a¤&­8z8¤&A:9Y%VNw<.19���.1587:98S

mE.1Hw%(7B.��ZS§¨I�q��.=)6F*ABybC8%��;%JW�[email protected]%>m�F82.=op%(k198S¤ � ¤�¦ ¤&¨ ¤-­

¤ � = ­��vH808' ¨��vH808' ­[�¡H808'¤s¦ ­[�¡HI08' = ­c�vH808' � � �¡H808'¤&¨ ¨X�¡HI08' ­��vH808' = ­[�¡H808'¤-­ ­[�¡HI08' � � �vH808' ­c�vH808' =m�9=)].17 ��� �¡HI08' ���[�vH808' ��� �¡H808' ���\�¡H808'

2T ABWX0^9DFu)].1?\)+%V9DH8'*%(FuP1.=F &Q5I%Y%('+'+. 2%}.cW[.=)+F+AByiC8%ZC8%JW�[email protected]�A:'+'+9{? <.19{ABWX087BA:,/.}?8%(,J%('*'6.1F*Ah. =WX%(?\)+%�&�58%Z%J'+'+%J'8"@5 $O9D'�)+%(FJ<.19c%('*'6.1's)]. $I.1';CI%i)6F+.1?8'uop%(F(f%J?8,(AB.IS < ,(9D?Od@kD58F+.^R,1<.19�C@.�F+%JC8%VCI%Jd@?8%&�5@.=7b2%>.},/[email protected],(A:[email protected]%bC8.XF*%(C8%=zw%>,J9D?8'+%'&�(5I%(?\)6%JW[%J?�)+%Z.Y,/[email protected],(A:[email protected]%>C8%a.=)+%(?8CI%(F !.XCI%(W[[email protected]%,(.1C@.}58W¯C891'A"85 $O9D'(S

�;%ePOA:C89�.�%J'+'6.�.17|)].vC8%(W[.1?8C@.¡C8%[email protected]?IC@.�%(?\)6F*%{9D'VF*91)6%(.1C89DF*%('}¤s¦¡%{¤-­8zG.�,J9DWZ58?IAB,/.wR,1<.19%J?\)6F+%}9D'�F+91)+%/.1C891F+%('>¤ � %}¤&¨�'+%}C8%JkDF6.1C8.IS < C8%(kDF+.1C@.^R,=<.19{9Q,(9DF*F+%1z %(W k1F6.1?8CI%[email protected]*)+%1z�C8%ePQABC89!.�%J'+0w%(F6.�?@.�d@7h.�CI%t)+F6.1?I'+WXAB'+'J<.19�?89D'}F*91)6%(.1C89DF*%('X¤�¦�%v¤-­8zK9 &�58%v.1,(.1F+F*%J)6.ª.=)+F6.1'*9�%����������

M�

Page 59: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

����������� ���%����7��������� �� ��� ��� ����� ����������H�

k1F6.1?8CI%('(S � 5O)6F+9X0w9D'+'(24 PD%J7 W[91)+A:P19X08.1F6.[.XC8%JkDF6.=C@.^R,1<.=9 2%i.7&�5@.=?�)+ABC@.=C8%iCI%i08F*9O,J%('*'6.1WX%(?\)69[?89D'F*91)6%(.1C89DF*%('_¤s¦a%;¤&­8z &�58%;%J'*)/<.=9Y'+9DH8F*%(,(.1F+F*%(k\.1CI9D'j%(?I,/.1WXAB?8l8.1?8C89i9V)6F82.=op%([email protected]'`F*%(C8%J'j,(7:AB%J?�)+%('� ­�% � GOS���.1F6.�.1087BA:,/.^R,=<9D%('>WZ5I7:)6A:W¡24 C8Ah.='(z�,(91W[9¡'+%('*'(<9D%J'YC8%[)+%(F*W[A:[email protected]+%JW[9=)698znPD9Dy[%[P^24 C8%J98z�9.£)6F6.='+9}%>9 ����� ���j'(<[email protected] f.1WX%J)6F*9D'_C8%iL;9�NcWZ58A|)69YABWX0w9DF*)6.1?\)6%('JS

��.1F6.�C8A:W[A:?�58ABFb9D'iP1.=7B9DF*%('VCI9�.=)6F+.1'+9�%�C89 ����� ���V.¡P=.17:9DF+%J'V,J9D?\)6F+917h.1C891'(z�%*$IA:'*)+%�58W �nNI�%J'+0w%(,124 d@,J9{[email protected][)6F@2.£op%(kD9c'*%(?8'(24 P1%(7gS � 'b�nNI�G'b,J9DW�%('+'*%}08F+9D0_29D'+A|)69�08.1'+'+.1W 0w9DF�,(.1WXAB?8l891'�[email protected]*%(C8% &Q5I%_%JPQA:)+%(W k\.1F*k\.17B91'�%j,J9D?8kD%J'*)+AB9D?@.=W[%J?�)+9D'(S < m�.1Hw%(7h. �ZS ­bW[91'*)6F+.s9 ����� ����?@.='�C8A:op%JF+%J?�)+%(',J9D?Id@k158F6.^R,=<9D%('&C8%>F+%JC8%>C899"@5 $O9[CI9}PQA:C8%(9D'*%(FuPD%(F�.=)O2%b9X�JI¢, � ¨Iz89[�JI ,(7:AB%J?�)+%bC@.}F+%(CI% � ¨IS

$s.�mE.=H^%J7h. �ZS ­8z . "*mn9D0^917B9DkDAB.Z��� $c,(9D?I'+AB'u)6%i?@.[F*%(C8%Z5I'6.1?8CI9�9c08F*91)69Q,(917B9}C8%VF*91)6%(.1WX%(?\)69���nz�&Q5I%i?89},(.1'+9x2%a9 � NI�K«x,J9DW�.}[email protected]?8C8.X0@.='+'6.=?�)+%i,J9DWX9XW�2%J)+F+A:,/.IS � ,J9D?8kD%J'*)6A:[email protected]%(?\)+9X%JW.=WZH^91'Z9D'Z,(.1'+9D'Y,J9D?8'*AB'*)+%{?@.�AB?�58?IC@.^R,1<.=9�C89�%(?87B.1,(%�%(?\)6F*%t¤�¦�%{¤-­8zG0w9DAB'ª2%c9�%(?87B.1,(%�,(F(24 )6A:,(908.1F6.a9 � NI�K«`S < )+9D0w9D7B9Dk1Ah.a���K�nN[?3<.19a%%$O,(7:58Aw9VF+9=)6%/.=W[%J?�)+9V���nzO'*9DW[%J?\)6%&'(<.19Y.=C8AB,JAB9D?@.=C89D'G9D'�nNI�G'&C8%bop9DF+W[.0&�58%>9D' "@5 $O9D'&08F+A:9DF+A|) 2.1F*AB9D'M?3<.19X5I)+AB7BA:y(%JW¬9}%(?I7h.1,J%b,(9D?8k1%('*)+AB9D?8.1C89[¤�¦�=°¤&­IS

m�.1Hw%(7h.��VS§­8��� ��� � �� Sm�910^9D7:9DkDAB. � ������� �GAB?8k

��� � S � ¦ �YWX' � S G£­��ZW['��� =°,(91?8kD%('u)/S � S ¦���GZWX' ¦OS ���1­}W['���K�nN � S � ¨ � WX' � S�� ��� W['

���K��N�=°,(91?8kD%('u)/S � S � G � WX' ¨IS��£­\¨YW['

�n9OC8%*=°'*%M91H8'+%JF*P=.1F &�58%K9 ��������� C89 "85 $O9s%J?8,/[email protected]_0@.=F6.j9-�nNI� &�58%G0@.='+'6.-0w%(7h.q'+%C& (53f%J?8,(AB.CI%¡?-291'[¤&¨ =°¤�¦�=°¤ � 2%t,J9D?8'+A:C8%(F+./PD%(7:W[%J?\)6%vW[%J?89DF9&�58% &�5@.=?8C89 2%tF*91)6%(.1C89�0^%J7B9�08F+9=)69Q,(9D7:9�����z08.1'+'+.1?8C89�0w9DFZ¤&¨ =�¤-­F=°¤�¦�=°¤ � S¡�°'*'+9�'+%{C8%ePD%t.191'Z%(?87B.1,(%J'Z5I)+AB7BA:y/.1CI9D'i0w%(7:9�F+9=)6%/.=W[%J?�)+9�����S �0IF+91)+9O,J9D7B9YC8%>F*91)6%(.1W[%J?\)69 � NI�K«x%J'+,(917Bl8%>'+%JW[0IF+%a9X,(.1WXAB?8l89YCI%aW[.1A:[email protected][email protected]@kD%JF6.1?8CI9X5IW�.,J9D?8,J%(?\)6F+.^R,1<.19XC89D' "85 $O9D'[email protected]+%JC8%b?89Y%(?I7h.1,J%>¤�¦�=°¤&­IzO9Q,/.1'*AB9D?8.1?8C89Y9Y,J9D?8kD%J'*)6A:[email protected]%(?\)+98SKTG'+'+%,J9D?8kD%J'*)+AB9D?@.=W[%J?�)+9;.1,(.1F+F*%J)6.sW[.1AB9DF*%('�)6%JW[0w9D'nC8%`%J'+0w%(F+.�%(W [email protected]'�?I9D'EF*91)6%(.1C89DF*%('(z=%`,J9D?8'+%'&�(5I%(? =)+%(WX%(?\)6%XW[.1AB9DF�.=)6F+.1'+9v%}W�.=AB9DF ����� ���eS[��91Fa915I)6F*9¡7B.1C898z�'*%X)+9OC89t9t)6F82.=op%(kD9tC89v,(7:AB%J?�)+%Y08F+%eop%%=F*%(?8,JAh.17�.=)+F6./PD%J'+'6.=F;9c%(?I7h.1,J%iF*%('+%JF*P=.1C89{08.1F6.c.=';.1087:AB,(.^R,1<9D%J's'*%(?8'(24 P1%(AB'Jz3.1's,(9D?I'+%C& (53f%J?8,(AB.1';'+%JF(<.19

M��

Page 60: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

��� M ����� ���%����7��� ����� ������� �����%.����$.�� ����������� ���

A:?8C8%J'+%��82.£PD%(A:'(S � ,(91?8kD%('u)6A:[email protected]%(?\)69[C89�%J?87h.=,(%aF+%('*%(FuP1.=C89c,(%JF*)6.1W[%J?\)6%V9Q,(91F+F+%[email protected] 0w9DAB'&%(7:%�2%aC8%0w9D58,(.�,/.10@.=,(ABC8.1C8%1S�T!.�o .17|)].�C8%{H8.1?8C@.�[email protected]+.�.1087:AB,/.wR,1<9D%J'ZC89�,(7:AB%(?\)+%{F+%(CIABF+%J,(A:[email protected][email protected].�9%J?87h.=,(%ZF*%('+%JF*P=.1C89t0w9OCI%ZkD%(F+.1F�A:?8'6.£)6AB'uo .^R,1<.=98S � ';%(?87B.1,(%J';,(91W W[.1AB9DF&,/[email protected],(A:[email protected]%=z WX%('*W[9 &�58%,J9DW WZ58A|)69t)6F82.=op%(kD9Iz�.=AB?8C@.{Pw<.19�9=op%(F+%J,(%JFi58W[.{)]. $I.¡CI%X)+F6.1?8'uop%(F(f%(?8,JAh.¡W[.1A:9DF &�58%�9vC8%[email protected] $I.,([email protected],JABC@.=C8%�%c,J9DW 0^9D5I,/.�5I)+AB7:ABy/.wR,1<.198Sv$&%('+'*%{'+%J?�)+ABC89IzK.�C8A:op%JF+%J?8,(AB.^R,1<.19¡C8%c'*%(F*PQAuR,(9D'ZCI%JPD%{'*%(FHw%(W 087B.1?8%��[email protected]��&W�.Z.='+'+9Q,(AB.^R,1<.=9YW�.17 F*%/.17:ABy/[email protected]%(?\)+F+%;58W "@5 $O9Y%;F*%(,(5IF+'+91'[email protected]+%JC8%>.1,/.=F+F+%e)].?8.>CI%(kDF+.1C@.^R,=<.19>C8%_9D5I)+F+9D'L"@5 $I91'M%&.=)O2%_W[%J'+WX9b?89>?3<.19a.=)+%(?8C8A:W[%J?\)69bC89D'GF*%C&�58A:'+A:)+9D'GC8%J'+'+%&?89�PD9"85 $O98S&��9DFs%('+'*%ZWX91)6A|PD98z@)69QC89D'&9D'A"@5 $O9D';CI9�,(7:AB%J?�)+%i0IF+AB91F+A:)@2.1F+A:9Y?3<.19['(<.19[%(?8,(.1W[A:[email protected]'s08.1F6.91'aF*%(,J58F+'*9D'iF*%('*%(F*P=.1CI9D'iC8.tF*%(C8%=S � .1C8WXAB?IAB'*)+F6.1CI9DF�C8%ePD%['+%(F>,(.15I)6%J7B9D'*[email protected]'a.1'+'*9O,JAh.^R,=<9D%(' &�58%o .=y1S

TG'+'*%�,J58ABC@.=C89¡%}PD%JF+A|d@,/.^R,=<.19�CI%XF*%(,J58F+'*9D'VC8A:'+0w9D?�24 PD%(A:'�2%X9.I`9D?\)6F*9D7B%}C8% < CIW[A:'+'(<.=98S�I`91W[9?8.UF+%JC8%�C8%�)+%('u)6%�9D'¡F*%(,J58F+'*9D'�'J<.19±.='+'+9Q,(AB.1C89D'vW[.1?�[email protected]%(?\)+%1z�9 I`9D?\)6F*9D7B%�C8% < C8WXAB'*'(<.19 2%W[.1?�[email protected]�)6.1WZHq2%JW¡S � I`9D?\)6F+917B%aC8% < C8WXAB'+'J<.19X'+%(F82.c.15I)+9DW±2.=)6A:,(9}'+%i.�.1'*'+9Q,(AB.^R,1<.19XC8%?"@5 $O9�,J9DW91'iF*%(,(5IF+'+91'[email protected]+%JC8%Xop91FaF*%/.17:ABy(.1C@.{.=)+F6./PK2%('aC8%�.=7BkD58W 08F+91)+9O,J9D7B9{CI%[C8A:'*)+F+ABHI58A*R,=<.19tC8%}F@291)+587B9D'Jz,J9DWX9&9s� �b��S �n9DFQ2%JW ?3<.19&0^9QC8%K'+%JF�&�[email protected]�&�58%(Fn08F+9=)69Q,(9D7:9_C8%JPQABCI9 !.1' F+%J'*)+F+A*R,=<9D%('�&�58%q.sTG?8kD%[email protected]*Ah.CI%imnF@2.=op%JkD9XF+%C&�58%JF(S � 08F+91)+9O,J9D7B9YCI%JPD%i'+%JFsl@.=H8AB7:A:)].=C89Z,(91W�TK?IkD%(?8l8.1F+AB.XC8%amnF@2.=op%JkD98z@,(91W[9}9D'0IF+91)+9O,J9D7B9D'�Ij¤ =�� �b�v%q¤sN �;�L= m-T_S < A:W[087:%(WX%(?\)].wR,1<.19jCI%('+'*%('�0IF+91)+9O,J9D7B9D'3.1AB?8C8.-%J'*)@2.&%JW o .1'+%KC8%CI%('+%J?\PD9D7|POA:W[%J?\)698z@%J?�)(<.19X?3<.19Yop9DA30w9D'+'(24 P1%(73o .1yJ%(F-,([email protected]+.^R,1<91%('_08F82.=)6A:,/.1'_,J9DW�%J'+'+%J'�08F*91)69Q,(917B9D'Jz0w9DF_%J? &�[email protected]?\)698S

~ ��� �����x�b���E�b���., +-,V�.,0/21/�.,Z��� 35476G�849,Z�., �., :��;���

< C8AB'u)6F+A:H858AuR,1<.19tC89v)6F@2.£op%(kD9¡%(?\)6F*%�9D'a%(?87B.1,(%J'[email protected]+%JC8%1zL&�58%X)6%JW 9v9DHQ�*%e)6A|PD9�C8%})6F+.=)].=FiC8A =op%JF+%J?8,([email protected]%(?\)6%X.17:kD58?8'8"85 $O9D'�2%Y)6.1WZHq2%JW�58W[.{op91F+W[.cC8%�TG?8k1%(?8l@.=F+Ah.{C8%}mnF@2.=op%JkD98S < 7:A:PQAh.=F9{)+F@2.=op%JkD9tC8%}%(?87B.1,(%J'a,J9D?8kD%J'*)+AB9D?@.=C89D'>%YF+%JC8ABF*%(,(A:[email protected]?IC89F=°91'[email protected].{%J?87h.1,J%('>7BA|PQF+%(';)+9DF+?8.v.{F*%(C8%W[.1A:'j%Jd@,JAB%J?�)+%1S I`9DWX9X,J9D?8'*%C&�(5�f%(?8,JAh.Iz@'*5@.},/.10@.=,(ABC8.1C8%>.1kDF*%(k\.=C@.}.158WX%(?\)].IS

< 'YF+91)6.1'Y%('*,(9D7:l8ABC@.='Z0^%J7B9�0IF+91)+9O,J9D7B9�CI%{F+91)+%/.1WX%(?\)69�%J'*)6.1C89�C8%{%(?I7h.1,J%c58'6.=Wr9D'Y%J?87h.1,J%('&�58%_)+%(W W[[email protected][email protected][email protected] S �;ABy%= '+%_H@.=?8C@. "*?89DWXAB?8.17 $8z£0w9DFE&�58%&[email protected]?8C8.>5I'6.1C@.>?89>,�2.=7B,(5I7B9

M��

Page 61: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

��� M ����� ���%����7��� ����� ������� �����%.����$.�� ����������� ���

? <.19x2%>?8%J,(%('*'6.1F*Ah.1WX%(?\)+%Z.}[email protected][email protected]'*0^91?�24 P1%(7gSq$�.YPD%JF+C@.=C8%1z&2%aWV58A:)+9XA:W[0IF+9�P`2.=PD%J7�&�58%i.[H8.1?8C@.?I9DW[A:[email protected]%J?87h.1,J%b%('u)6%��+.ZCIAB'+0w9D?324 PD%J7gz �82. &Q5I%[email protected]:'+'*9 2%;?8%(,J%('*'@2.1F*AB9X.ZAB?8%*$OAB'*)/f%(?8,JAh.VCI%b9D5I)6F*9D'"85 $O9D'(S

< F+91)6.1'�%J'+,(917Bl8A:[email protected]'&0^%J7B9�0IF+91)+9O,J9D7B9XC8%VF*91)6%(.1WX%(?\)69XPD%J)+9DF;C8A:'*)£f.1?8,(AB.X5O)6AB7:ABy(.1W¯?8%J'+'6.�)+9D0w9F=7:9DkDAB.}91';%(?87B.1,(%J'�C8%iW[%J?89DFs,/.10@.=,(ABC8.1C8%1zw0w9DFQ2%JW�,J9DW�W[%J?89D'�'+.17:)+9D'(S �;%('u)].�W[.1?8%JABF+.X9c%J?87h.=,(%CI%�W[.1AB9DFG,([email protected],JABC@.=C8%s? <.19id@,(.V'+91H8F+%J,/.1F*F+%(kD.1C898zQ%(W ,(91?�)+F6.108.1F*)+ABC@. "@5 $O9D'`'J<.19V7:ABWXA:)6.1C89D'�0w%(7:9D'%J?87h.=,(%('-C8%>WX%(?891F_,/.10@.=,(ABC8.1C8%1z@k1%(F6.=?8C89X'+9DH8F*%(,(.1F+k\.}.1k19DF6.Y?8%J'+'+%J'�%J?87h.1,J%('JS

��.1F6.�o .1y(%JF[.='XWX%(CIA*R,1<91%('}C@.�,/.10@.=,(ABC8.1C8%v.1kDF*%(k\.1C8.�C8.�F*%(C8%=zj58'6.=W9= '+% "@5 $O9D' ���b�!08.1F6.A:?�[email protected]*%(C8%=S < [email protected]' "85 $O9D'[2%&C8%Jd@[email protected]?89V%JW[A:'+'+91F(z�%�?89iF+%J,(%(0O)69DFqW[%JC8%%= '+%&9�&�[email protected]?\)69'*%iF*%(,J%(Hw%1SK�°'+'*9x2%bop%(A|)69}.=)+F6./PK2%('&C89['*91o ) B`.1F+%>AB0w%(Fuo�S � 9DH��*%J)6A|PD9XC89X58'+9XC8% "@5 $O9D' ���b� 2%a08.1F6.A:?�[email protected]*%(C8%&%_9DHI)+%(FK9>58'+9aW 2.�$IA:W[9�C89D'KF+%J,(58F*'+9D'[email protected]+%JC8%1z(�82. &�58%-9 � �b�ª?3<.19b)+%(W ,J9D?\)6F+917B%CI% "85 $O98z .17e2%JW�C8%a'+%JF-0^9D'*'/24 PD%(7�CI%Jd@?8A:F&.YP=.1y=<.19}C89D' "@5 $O9D'Jz 97&�58%a9}m2Ij� ?3<.19}0w%(F+WXA:)+%1S

I`9DWX9c9{08F*91)69Q,(917B9 � �b� ? <.19�)6%JW�,J9D?Id@F*W�.wR,1<.19{C8%VF+%(,J%(0ER,=<.198z .1'sW[%JC8ABC8.1';C89c0w%(F*,(%J?�)[email protected].{)6. $I.cF+%J,(%(HIABC@.{'(<.=9vWX%([email protected]'�?89tAB0w%(F*oKF*%(,J%(0I)+9DF(S � AB0w%(Fuoq.=)6F+.�PG2%J'aCI9{'+%C& (58%J?8,(AB.1W[%J?\)69tC89D'08.1,(91)+%('jP=.1A3,J9D?\)].1F &�5@.=?�)+9D'[email protected],J91)6%J'_op9DF6.1W C8%J'+,/.=F*)].=C89D'[email protected]+%JC8%1z@CI%JPQABC89}.=9Y%(?8,]l8A:W[%J?\)69}[email protected]'d87h.1'_C891'&F*91)6%(.1C89DF*%('Jz@%aWX%(CIABF-.Y0^%JF+,J%(?\)].1k1%(W�C8%>[email protected],J91)6%J'-%(?\)6F*%(kD58%J'(S

mE.1Hw%(7B.��ZS GO�q��.=)6F*ABybC8%>mnF@2.=op%JkD9X¤&���nS¤ � ¤s¦ ¤&¨ ¤-­

¤ � = ¨IS �X�¡HI08' ¦QS G}�¡H80I' ¨IS � �¡H808'¤s¦ ¦OS§¨��vH808' = ����� � ¨ �OS��X�¡H80I'¤&¨ ¨IS G[�vH808' ¨IS G}�¡HI08' = ­8S � �¡H808'¤-­ � � M���� � ­ � S ¨X�¡HI08' ­IS � �¡H80I' =m�91)6.17 �OS ¦[�vH808' ­��IS��}�¡HI08' �OS G}�¡H80I' ­ �OS��}�¡H80I'

< mE.=H^%J7h. �ZS G>WX9D'u)6F6.>.>W�.£)6F+A:yjC8%-)6F82.=op%(kD9>%eop%J)6A|PD9aC89D' "@5 $O9D'M%(?\)6F*%s91'MF*91)6%(.1C89DF*%('J&�[email protected]?8C89.bF*%(C8%t2%_,(9D?Od@kD58F+.1C@.>,(9DW�9a0IF+91)+9O,J9D7B9bC8%-F*91)6%(.1W[%J?\)69a¤&���nS��K%(F*A:d@,(. =°'*% &Q5I%&91'M%J?87h.=,(%('M¤&¨ =�¤s¦%i¤-­F=�¤ � d@,/.1W�,J9D?8kD%J'*)+AB9D?@.=C89D'(z@%aC8%ePOA:C89[.[AB'*'+9X9D'_P=.17B9DF*%('-C8%>)6F+.1?8'*op%JF(f%J?8,(AB.XC8%i¤ � 0@.=F6.X¤&­

!��

Page 62: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

��� M ����� ���%����7��� ����� ������� �����%.����$.�� ����������� ���

� � S ­��vH808' >_%>C8%a¤s¨Y0@.=F6.}¤�¦ � � �vH808' >jd@,(.1W¯08F*%��*58C8A:,/.1CI9D'(Sm�.1H^%J7h.��ZS �I�M��.£)6F+A:ybC8%>m�F82.=op%(k19 � NI�K«`S¤ � ¤s¦ ¤&¨ ¤-­

¤ � = ¨IS ���¡HI08' ¦OS ���¡HI08' ¨IS �[�vH808'¤�¦ ¨IS �X�¡HI08' = ¨IS ���¡HI08' � � � � ��� �¤s¨ ¨IS � �¡HI08' ¨IS ���¡HI08' = ­8S � �vH808'¤&­ ¨IS �X�¡HI08' � � � ����� � ¨IS ���¡HI08' =mn91)].=7 ��� S �[�vH808' ­ � S �[�vH808' ��� S �X�vH808' ­�GOS �[�vH808'

< mE.1Hw%(7B. �VS���WX9D'u)6F6.&.�W[.=)6F*AByKC8%M)6F@2.£op%(kD9s%Jop%J)+A:P19;C89D'�"@5 $O9D' &�5@.=?8C89>.sF*%(C8%[2%q,[email protected]@.0w%(7:9c08F*91)69Q,(9D7:9�C8%YF*91)6%(.1WX%(?\)69 � NI�K«`S � HI'+%(FuPD%9&�58%}.1kD91F6.c.[)+F6.1?I'*op%(F(f%(?8,JAh.cC8%}¤ � 0@.=F6.{¤-­8z%�C8%�¤&¨�[email protected]+. ¤s¦�?3<.19ªd@,/.1W C8%JkDF6.1C8.1'(S � 08F*9DH87:%(W[.ª.1k19DF6. 2%�.�W[.1?8%(A:F6.�,(9DWX9 9 � NI�K«,J9D?8,J%(?\)6F+.�)69QC89D'�91' "@5 $O9D'�?89�%J?87h.1,J%Z¤s¦�=�¤-­8z C8%JkDF6.1C8.1?8C89c91' "@5 $O9D'�C8%V)6F+.1?8'uop%(F(f%J?8,(AB.�C8%V¤�¦08.1F6.}¤-­ � ¨D¨IS �X�¡H808' >-%bPQAB,J%%= P1%(F*'6. � ¨��X�¡H80I' >eS

m�.1H^%J7h. �VS��O�q��.£)6F+A:ybC8%>m�F82.=op%(k19��¡�M�nN^S¤ � ¤s¦ ¤&¨ ¤-­

¤ � = ¨IS �[�vH808' ¦OS �[�¡HI08' ­8S � �¡HI08'¤�¦ ¨IS �[�vH808' = ­8S � �¡HI08' ­ � S§¨[�vH808'¤s¨ ¨IS � �vH808' ­8S � �vH808' = ­8S � �¡HI08'¤&­ ­8S � �vH808' ­ � S �X�vH808' ­8S � �¡HI08' =mn91)].=7 ��� S �[�vH808' ­ �IS �[�vH808' ��� S �X�vH808' ­ �IS§¨[�vH808'

� ���K�nN�)+%(W . "@%%$OABHIAB7BA:[email protected]%aC8%Y,J9D?Id@kD5IF6.^R,=<.19 &�58%Y0^%JF+WXA:)+%V%%$I.=)6.1WX%(?\)6%Y9 &�58%Y?8%J?8l�58WCI9D'-C89DAB'_0IF+91)+9O,J9D7B9D'_CI%aF*91)6%(.1WX%(?\)69},(91?8'+%JkD58%1z %J?8,(9D?\)+F6.1F&9}W[%JAB9Z)6%JF+WX98SKTG? &�[email protected]?\)69[9[0IF+91)+9F=,J9D7B9 � NI�K« &�58%}'+%}'+%JF*P1%[C89tWX%(,(.1?8AB'*W[9{CI%Y%('*)6.1C89vC8%Y%(?I7h.1,J%Y,(9D?8k1%('*)+AB9D?8.v.{F*91)].cC8%}W[.1AB91F,([email protected],JABC@.=C8%1z89X¤-��� &�58%>58'+.}9YP1%J)691F_C8AB'u)=f.1?8,JAh.Z,J9D?8kD%J'*)6A:[email protected]+9=)].ZC8%bWX%(?891'_'6.17|)69D'JS < )6F6./PG2%('CI9����K�nNª0w9OC8%*=°'*%[9D0O)].1Fa0^91Fa5IW�.vC8A:op%JF+%(?I,(Ah.wR,1<.19vC8%X'+%(FuPQA*R,(9IzE'+917B58,JAB9D?@.=?8C89v9�08F*9DH87B%JW�.tC@.

! �

Page 63: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

��� M ����� ���%����7��� ����� ������� �����%.����$.�� ����������� ���

0IF+AB91F+ABy(.^R,1<.=98zO%>.=9YW[%J'+WX9Z)6%(WX0w9Y'+9D7:58,(A:[email protected]+9DH87:%(W[.VC89},(91?8kD%('u)6A:[email protected]%(?\)69IzI,(91W¯.Z%(?IkD%%[email protected]+AB.aCI%s)6F82.=op%(k198S � F*%('+5I7:)].=C89ª2%&58W .17g24 PQAB9>C89V%J?87h.=,(%s¤�¦�=°¤&­Iz &�58%s0^91'+'+A:H8AB7:A:)6.;9Z.158WX%(?\)+9VC@.)6. $I.aCI%&)+F6.1?8'uop%(F(f%(?8,JAh.i%J?\)6F+%&9D'MF+91)+%/.1CI9DF+%J'`¤s¦>%s¤-­8S�T�.19aWX%('+WX9>)6%(WX0w9a? <.19i,J9D?8kD%J'*)+AB9D?@.>9D'%J?87h.=,(%('qC8%�H8.1A $I.>,/.10@.=,(ABC8.1C8%s¤�¦�=°¤s¨>%;¤ � =°¤&­8z\0w9D'*'+ABHIAB7BA|)].1?IC89 &Q5I%�9D' "@5 $O9D'j%J?\)6F+%s%('*'+%('`F+91)+%%=.=C89DF+%J'&)6.1WZHq2%JW�?3<.19['+%��+.=W�08F+%°�*58C8AB,(.1C89D'JS < '&,/.108.1,(A:[email protected]%J';.1kDF*%(k\[email protected]'-C8%V,([email protected],(9D?Id8kD58F6.wR,1<.19C8.XF*%(C8%>'(<.=9XWX9D'u)[email protected]'[email protected].=H^%J7h.��ZS �I�

m�.1Hw%(7B. �ZS �I�qNO9DW[[email protected]'-,/.108.1,(A:[email protected]%J's.=kDF+%Jk\[email protected]'JSmn9D0^917B9DkDAB. Ij.10@.=,(ABC8.1C8%[email protected]¤&%JC8%¤&��� ��� �IS � �¡H808'� NI�K« ��� �IS � �¡H808'�¡�M�nN ��� �IS G}�¡H808'

2T�A:W[0w9DFu)].1?\)6%`,(9DWX%(?\)].=FG9D'GP1.=7B9DF*%('GC@.;P=.1y1<.=9iWX%(C8A:C@.;C89D'#"@5 $I91'M%J?\)6F+%&9D'GF*91)6%(.1C89DF*%('M¤�¦;%¤-­8S < 0w%('+.1F�C@._C8%(W[.1?8C8._)+%(F�'*ABC89-,(91?Id@kD58F+.1C@[email protected]+. � � �¡H808'Jz19_'*91o ) Bj.=F+%KAB0w%(FuoIC89_%JW[A:'+'*9DF�?3<.19,J9D?8'*%(kD58%s)6F6.=?8'+WXA:)+ABFK.V%J'+'6.a)]. $I.IS �G2.?&Q5I%;9VA:0^%JF*o3F*%(,J%(0I)+9DFj,(91?8'*)6.=)].V5IW�.>0^%JF+,J%(?\)].1k1%(W [email protected] $I.CI%a0w%(F*[email protected] �sW[.Y0^91'+'(24 PD%J7�,/.158'+. 2%a.Y7BA:W[A|)].^R,=<[email protected],([email protected],[email protected]%aCI%a0IF+9Q,(%('*'6.1WX%(?\)+9�C89}%(WXAB'*'+9DFJz? <.19t0^9D'*'+A:H8AB7:A:)].=?8C89{.{)6F+.1?8'+WXAB'*'(<.19{CI%XC8.1C89D'i.{%('+'+.v)6. $I.ISX��.1'>,(91W[9tAB'*'+9v%('u) 2.v.1'+'*9O,JAh.1C89v.5IW¯08F+91H87B%JW�.ZC8%>,J9DW[0I5I)].^R,=<.19}%>?3<.19�2%>C8%(F*A:P=.1C89}C8%a.17:kD58W[.VAB?8,([email protected],JABC@.=C8%bC@.}F+%(CI%a%>?8%JW¯C8%?I%(?8l�58W�C8%b'*%(58'-,J9DW[0w9D?8%J?\)6%('-C8A:F+%e)69D'JzI?3<.19Yop9DF+.1W F+%/.=7BABy(.1C89D'q)6%('u)6%J'&0IF+91op58?IC89D'_%b%%$I.15I'*)6A|PD9D'PQA:'6.1?8CI9[9}C8AB.1kD?-29D'u)6A:,(9YC89}08F*9DH87B%JW�.OS

! �

Page 64: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

� � " �� �� ��� � �

� � � � � ���� �

� 9DHQ�*%J)+A:P19iC8%J'+'*%&)+F6.1H@.=7Bl89�op91A8,([email protected]+.1F�9>C8%J'+%(WX0w%([email protected],(91WZ5I)].wR,1<.19>C8%[email protected],J91)6%J'q���K��N,J9DWr9�F*91)6%(.1WX%(?\)69����nSG�E.=F6.�.=)+AB?8kDA:Fi%J'*)+%v91HQ�*%J)+A:PD9Iz�op9DA`A:W[087:%(WX%(?\)].=C@.¡58W[.�F*%(C8%{C8%c)+%('u)6%('&�58%i,(9D?I'+AB'u)6A:5�C8% &Q58.=)6F*9�F+9=)6%/.=C89DF+%J'(S < ,(9D?Id8kD58F6.wR,1<.19[7�29DkDA:,/[email protected]+%(CI%1zwAB?8,J7B58A:?8C89}9�08F*91)69Q,(917B9CI%ZF+91)+%/.1WX%(?\)+9{5I)6A:7BABy(.1C898z@op9DAnWX9OC8A|d@,/.=C@.[0@.=F6.�0w9OCI%(F;,J9DW[08.1F6.1Fs9D'�CIA:PD%JF+'*9D'[email protected]+.1C8ABk1W�.1'&C8%%J?8,/.=W[A:[email protected]%(?\)69}C8%>0@.=,(91)+%('(S

� ���K��NZ0w9OCI%_'+%(FG5O)6AB7:ABy(.1C89�08.1F6.�o .1yJ%(FGC8A|op%(F*%(?8,JAh.^R,=<.19;C8%-'+%JF*PQA*R,J9D'(z\%_? <.19b?8%(,J%('*'6.1F*Ah.1WX%(?\)6%0IF+%(,JAB'+.¡%('u)].1FaC8%[.1,(91F+C89v,(9DW�.v.1FD&Q5IA:)6%e)658F+.�� � ���� ��S[TG'+'+.¡C8A|op%(F+%J?8,(AB.^R,1<.=9 2%}%('*'+%J?8,(AB.17q08.1F6.9t)6F f.1?8'*A:)69vC8%9"@5 $O9D'iWZ587:)+ABW¡24 C8AB.1'&?@.¡�°?\)6%JF+?8%e)Z%[email protected]+. &�58%�.v%J7h.t'+%��+.v?89top5I)658F*9�.tF+%JC8% &�58%)+F6.1?I'+0w9DF*)[email protected])[email protected]'-.='s.=087BA:,/.^R,=<9D%('J�E)6%J7B%Jop91?8Ah.IzQPQABC8%J9O,J9D?Iop%(F(f%(?8,JAh.Iz8)+F6.1?I'*op%(F(f%(?8,JAh.YC8%>[email protected]'(z@m �CIABkDA|)].17 zO%e)6,1S

��.1F6.&.=)6A:?8kDA:F %('*'+%M9DHQ�*%e)6A:P19-9��¡�M�nNb'+%KWX9D'*)[email protected]'u)].1?\)6%K%ed@,/.1y=z=0w9DA:' .=)6F+.�PG2%J'nCI%(7B%V2%K0w9D'+'(24 P1%(7o .=y(%(FGCIA:op%(F*%(?8,JAh.^R,=<.19bC8%_'*%(F*PQAuR,(9D'K%[email protected]?8,J%/.1WX%(?\)69bCI%&,(.1F+kD.;'+ABWV587:)6.1?8%/.=W[%J?�)+%1S � F*%(C8A:F+%(,JAB9D?8. =WX%(?\)+9&CI9D' "@5 $O9D'nW�.1A:'308F*AB9DF*A:) 2.=F+AB91'^0@.=F6._%(?87B.1,(%J' C@._F+%(CI% &�58%K%('u)/<.19&WX%(?89D'�,J9D?8kD%J'*)+AB9D?@.=C89D'(z£9D5.£)O2%�WX%('*W[9iF+%J'+%(FuP=.1C89D'Jz80^91'+'+A:H8AB7:A:)+9D5}9Z58'+9VW�.1A:'q%ed@,(A:%(?\)6%�C89D'`F*%(,J58F+'*9D'[email protected]*%(C8%[email protected]%(?\)6.1?8C89'*[email protected],/[email protected],(A:[email protected]%V.1kDF*%(k\.1C8.IS < 9{W[%J'+WX9[)6%JW[0w98z^%('+'*%V)6F+.=)].=W[%J?�)+9cC8A|op%(F+%J?8,(AB.1C89[0^9D'*'+A:H8AB7:A:)6915�.kD.1F6.1?\)+Ah.bC@. &�5@.=7BABC8.1C8%-C8%&'+%(FuPQA*R,(9Iz��82.?&Q5I%�%('*'+%J'`F+%J,(58F*'+9D'`'(<.19a58'6.=C89D'`0w9DFK58W ?�258WX%(F*9aF*%('u)6F+A|)69CI%c58'+5_2.1F+A:9D'(z�CI%JPQABC89�.19�I`9D?\)6F*9D7B%XC8% < C8WXAB'+'J<.198S 2T A:W[0w9DFu)].1?\)6%},J9DW[%J?\)].1F &Q5I%c?3<.19 2%[F+%(,J9F=WX%([email protected] &Q5I%i)69QC89D'&9D'A"@5 $O9D'sC8%('*'+%('�58'+5-2.=F+AB91's08F*AB9DF*A:)@2.1F+A:9D'j'+%°�+.1W�%(?8,(.1WXAB?8l@.=C89D'&[email protected].}%('*'+%J'

Page 65: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

F*%(,J58F+'*9D'sF*%('*%(F*P=.1CI9D'(z 0w9DAB'_0w9OCI%>.1,/.1F*F+%e)].1F-%(W�C8%(kDF+.1C@.^R,=<.19}C@.[Lb9\N{CI%a915I)6F*9D' "@5 $O9D'(Smn%(9DF*AB,(.1W[%J?\)6%1zI.iA:W[087:%(WX%(?\)].wR,1<.19>C89Z���K��N})69DF*[email protected]+AB.a9i%(?8,(.1WXAB?8l@.=W[%J?�)[email protected],J91)6%sW�.1A:'

%ed@,(A:%(?\)6%&%-W[%J?89D'K,(5I'*)691'+9V,J9DWX085I)].=,([email protected]%(?\)+%[email protected]+.a9aF+91)+%/.1CI9DF(S < 0IF@2.=)+AB,/.b?3<.=9iWX9D'*)+F6.bAB'*'+9?I9V.1WVH8AB%J?�)+%-C8%&)+%('u)6%('qC8%('*%(?\PD917:PQABC89IS < A:W[0I7B%(WX%(?\)6.^R,1<.19bCI9iWX%(,(.1?8AB'*W[9>C8%&%(?I,/.1WXAB?8l8.1W[%J?\)69CI9}���K�nN�?89��1%JF+?8%J7�.1A:[email protected]? <.19Z91)+ABWXABy/[email protected]\'+%JkD58?8CI9Y9V08F829D08F+A:9VC8%J'+%J?�P19D7:P1%(C891F&CI9ZW[%J,/.1?IAB'+WX9A:?8'+%JF+A:C89�?89��1%(F*?8%(7;¥§¦��=©gz�.¡0w9D58,/. &Q58.1?\)6ABC8.1C8%�CI%�F+9=)6%/.=C89DF+%J'ZC8%[?;258,(7:%(9�CI9�C89DW¡24 ?8A:9¡���K��NCI9¡.=WZH8AB%J?\)6%}C8%Y)6%J'*)6%Yop%JA:)69Iz�%[.t.1FD&�58A:)+%J)65IF6.{C8%}[email protected]*CBj.=F+%}C89D'>F+9=)6%/.=C89DF+%J'a� I &�58%}?3<.19v'(<.19.=0^%JF*op%(AuR,(9\[email protected]'[email protected]+.b9bF+91)+%/.1WX%(?\)69>C8%-0@.=,(91)+%('K'(<.19>0w9D'+'(24 P1%(AB'G,(.158'+.1'qCI%('+'+.aA:?8%Jd8,(Agf%J?8,(AB.IS��n9DFQ2%JW2%`ABWX0^9DFu)].1?\)+%qopF+A:'6.1F�&�58%_%('u)].1'G,J9D?8,(7:58'(<91%('G'+%-.=087BA:,/.1W '+91W[%J?�)+%_.;%('*'+%J'MF*%('*587:)6.1C89D'G0@.=F*)6A:,(587B.1F+%J'CI9>.1WZH8A:%(?\)6%qC8%`)6%J'*)+%('G,(F*Ah.1CI98&�58%[2%jHw%(W [email protected])6AB,J587h.=F(Sn$i<.19b0w9QC8%(WX9D' )6ABF+.1FE?I%(?8l�58W[.;,(9D?I,(7B5I'(<.19.=H8F6.1?IkD%(?\)6%M9D5akD%(?I%(F6.=7BABy(.1C@._'+91H8F+%M9sCI%('+%JW[0w%(?Il89�C89;���K�nNa%(W F*%(C8%J'�,J9DW 9D5I)+F6.1'�)+9D0^917B9DkDAB.1'(z&�58%a'+%°�+.1W¯,J9D?8'*)+A:)+58ABC@.='_C8%>F+91)+%/.1C891F+%('-,J9DW¯9D5I)+F6.1'&.1FD&�58A:)+%J)65IF6.1'_C8%>l@.=F+CB`.1F+%=S

� 0^%'&�58%(?89X?�258WX%(F*9ZC8%;F*91)6%(.1C89DF*%('_C8%b?�258,J7B%J9ZC89YC89DW¡24 ?IAB9Y�¡�M�nN{.1,(.1F+F*%J)].Z%JW P=.17:9DF+%J'jC8%.£)6F6.='+9�% ���������-kDF6.=?8C8%('sC8%JPQA:C89 !.['*9DH8F*%(,/.=F+k\.�,J9DWX085I)].=,([email protected]�C@.�Hw9DF*C@.[C89[C89DW¡24 ?8A:99&Q5I%Z?3<.192%>,J9DW[0w%(?I'6.1C@.}?89}?�258,J7B%(9IS < P1.=?�)6.1kD%JW¯C89[���K�nNv'+91H8F+%>9}���±'+%aC-2.Y%(W�58W�.Z)+9D0^917B9DkDAB.i,J9DWWV58A:)+9D'Z'6.=7:)691'Z?89�?;258,(7:%(9�C89�C891W�24 ?8AB98z�9�&Q5I%v? <.19�9O,J9DF+F*%{?@.�)69D0w9D7:9DkDAh.v08F+910^9D'u)].IzM.1'*'+A:W¡zG9�¡�M�nN[? <.19Z9DHI)O2%(W C8%J'+%(WX0w%(?8l89V'+580w%(F*AB9DFq.19VF*91)6%(.1WX%(?\)69i��� ?I%('+'+.V)69D0w9D7:9DkDAh.OzD9�&�58%;0w9QC8%s'*%(F91H8'+%JF*P=.1C89X?89D'_P=.17B91F+%('_CI%i.£)6F6.='+98z8WX%(CIABC89D'_,J9DW¯9 "����� S

< '�WX%(C8A:[email protected]'}C89 ���������YW[91'*)6F+.1F6.=W &�58%�WX%('*W[9�,(91W .ªF+%JC8%v,(9D?8k1%('*)[email protected]����K�nN 2%,([email protected]%_W[.1?\)/f%*=°7:9;%(W!P=.17:9DF+%J'�AB?Oop%(F+A:9DF+%J'G.19D'�P=.17:9DF+%J'GC89>F+91)+%/.1WX%(?\)+9b����S\�°'+'*9i'*%-C8%JP1%1z�0^91AB'G?89F*91)6%(.1WX%(?\)69Z��� 9D'q%(?87B.1,(%J'j%('*,(9D7:l8ABC891'qd@,(.1W¬,J9D?8kD%J'*)+AB9D?@.=C89D'(zO%;,(91W 9Y���K��N{.VCIA:op%(F*%(?8,JAh.^R,=<.192%>F*%/.17:ABy/[email protected]%('*,(9D7:l8%(?8CI9[,(.1W[A:?8l89D'-.=7:)6%JF+?@.£)6A:P19D'(S$s.1'VWX%(C8A:[email protected]'aC@.�,([email protected],[email protected]%�.1k1F+%(kD.1C@.¡C8.�F+%JC8%1z�9����K��N�'6.=)+AB'*o .=y[9D'iF+%'&Q5IAB'+A|)69D'aC8%c%J? =

k1%(?8l@.=F+Ah.XC8%V)+F@2.=op%JkD98z &Q5I%V9{¤-��� %Z9 � NI�K«±?3<.=9c'(<.19�,/.10@.=y(%('�C8%Z'6.£)6AB'uo .1y(%JF(S � ¤&��� %%$I.1k1%(F6.?8..&Q58.1?\)6ABC8.1C8%�CI% "@5 $O9D'YC8%J'*PQAh.=C89D'ZC89�%J?87h.=,(%�CI%cW�.=AB9DFa,/.108.1,(A:[email protected]%=zE)69DF*[email protected]?8CI9�9D'Z%J?87h.1,J%(''*%(,J58?8C-2.1F*AB9D'Y,J9D?8kD%J'*)+AB9D?@.=C89D'(S � � NI�K« o .1y�9�9D0^91'*)69IzM%J?8,/.=W[A:?8l@.�9D'0"85 $O9D'[email protected]+.�9�%J?87h.=,(%CI%ZW�.=AB9DF&,/.108.1,(A:[email protected]%=z ,(91?8kD%('u)6A:[email protected]?8CI9{%('*)+%1S � ���K�nN�CI%JPQABC89c.c'+5@. "@%*$OABH8A:7BABC8.1C8%>C8%Y,(91?Id=k158F6.^R,=<.19Y0w9D'+'*ABH8A:7BA:)6.?&�58%>'*9DW[%J?\)6%[email protected])6%;CI99"85 $O9XCI%b58W�WX%('*W[9Z08.1F_9DF+A:kD%(W =°CI%('*)+AB?89i'+%°�+.}%J? =

! M

Page 66: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

,(.1WXAB?8l@.=C89b.=)+F6./PK2%('KC8%_58W�,/.1WXAB?8lI9>.17:)+%(F+?8.=)6A|PD98S < '*'+ABWvzE2%j0w9D'+'(24 P1%(7@5I)+AB7BA:y/.1FnF+%J,(58F*'+9D'K9Q,(A:9D'+9D'Jz'*%(W¯,J9D?8kD%J'*)+AB9D?-2.�=°7B91'(zQ%b.19YWX%('+WX9Z)6%JW[0w9Y.17:A:PQAh.=F`.Z,(.1F+k\.ZCI9Y%(?87B.1,(%;0IF+AB?I,(AB08.17 0w9D'+'*ABH8A:7BA|)].1?8CI9&�58%a9D5I)+F+9D' "85 $O9D's9}5I)+AB7:ABy(%JW¡S

� 'bF+%J'+587|)].1CI9D'b9DHI)+ABC89D'�?8%('u)6%}08F+9 �*%J)69tA:?8C8AB,(.1W &Q5I%X9v�¡�M�nN 2%Y58W[.c.17:)+%(F*?@.=)6A|P=.[PQA�2.=P1%(7�%%ed@,/.=y{[email protected].�,J9D?\)6F*9D7B%cCI%c)6F@2.£op%(kD9�CI%{58W�.¡F+%(CI%1z3�*58'*)+A:d@,(.1?8C89�9�'*%(5 58'+9�?8.1'YF+%JC8%('U291)+AB,/.='VC8%.=7:)/24 '+'*ABW[.iPD%J7B9Q,(ABC8.1C8% &�58%>C8%JP1%(FJ<.19�'*%(F-58'[email protected]'&?89D'-08F@29 $IA:W[91'_.1?89D'JS

! !

Page 67: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

��-����!� � � � � � �E� � � ��� � ���� � � �

¥ � © �ZS �ZS2I`7B.1F � z "*m_l8% �;%('+A:kD? �Gl8AB7:9D'+9D0Il 91oV)+l8% � < ¤s� < �°?\)+%(F+?I%J)��GF*91)69Q,(9D7:'%$8z��� �� �����D>����Yz � �����IS

¥§¦£© < S N^S@m�.1?8%(?�H@.=58W¡z� >������ ����� �� � > �"!$#eSK�GF*%(?\)6A:,(% ��.17:7 �°?8,=z op9158F*)+lv%JC3S|zw¦ ��� ¦OS¥ ¨=© < S\��.1? �QA:?3z�T_S\«`S `.��1%JF(z �S� qF6.1C8%J?3zON^S `F+.1C8?8%JF(zQ�ªS ��% �;%(7:7gz < S\¤-9DW[.1?89�B>z < S'&�%JAB?8F*ABH

%)( l8.1?8k8z "+¤&%J'+9D5IF+,(%}¤-%�NQ%(F �M.£)6AB91?��KF*91)69Q,(917 � ¤�N �;�J>+*�K%(F*'+AB91? � < 08087:AB,(.1H8AB7:A:),vN�)].=)+%%=WX%(?\)sNO9DWX%?@b58ABC8%J7BA:?8%('j91?��;%J087B9$QW[%J?\) $8z.-0/ � ��0/ ��21+34 657598':Dz8'+%e)6%(WVH8F+9XC8% � � � �QS

¥ ­1©VN^S<;>%J'+l@./Pwz=��/?>@/�� �A/ ����A/��B�C�7� �?>ED��"F �N>G >������ � ���� ��H� > �I! �A/��7JC�BKL�M� �� � > �I!$#"N �OF -0/ � ��0/ ��AN@DP/�Q �AF RK TS ,�UF;>�/ �� �� � > �"!£S < C8C8A:'+9D? =V&�%J'+7:%WDz8d8F+'*)&%JC3S:z � � � �OS

¥ G£© �ISX&�F*9O,J7h. B-' ��A z "*m_l8% �&'+%{91o_¤�N �;� B-A|)6l ��TGm-« �°?\)6%JkDF6.£)6%(CUNO%JF*PQAB,J%(' $8zY-T/ ���0/ ��Z1+34 575�[�8£zO'+%J)+%(WZHIF+9�CI% � � � �OS

¥ �=©VN^S `7h.��=%1z �ZS `7h.1, � z��ªS�Ij.=F+7B'*9D?3z T_S �b./PQAB%J'(z\(ES]&�.1?8kt%�& S]&ª%(A:'+'(z " < ? < F+,]lIA:)6%J,J)+58F+%op9DF �;A�^ %JF+%J?�)+Ah.=)+%(CvNO%JF*PQAB,J% $8z�-0/ � ��0/ ��21+34 _5$`Xacb1zOC8%(yJ%(WZHIF+9�CI% � � ���IS

¥ �£©B;YS $sA:,]l89D7:'(z^N^S `7h.��1%1zw«`S `.��1%JF�% �ZS `7h.1, � z " �;%ed@?8A:)+AB9D?t91oE)6l8% �;Ad^^%(F*%(?\)6AB.=)6%JC�NQ%(F*PQA:,(%('«EA:%(7:C � �>N�«�AB%(7:C�>&A:?�)6l8%Y����PQ­v.1?8C�����P ��s%/.=C8%(F*'%$8z�-T/ ���0/ ��e1+34 f5$`XaI`@z3C8%Jy(%(WVH8F+9tC8%� � ���IS

¥ �=© �S �b./PQAB%1z < S I`l8.1F+?7Dz �IS `%(?I?8%J)(zZ;YS `%(?I'+9D?3z �ISq�KS `9D5IC8%(,=z+& S I`9D58Fu)6?8%TDz�N^S �b. =P=.1F*Agz �ZSI«EABF*9DAB5X% �ZSINQ)6A:7BAh.=C8AB'Jz " < ?{T $O0w%(C8A|)6%(Cv«@9DF Bj.1F*C8AB?IkZ� �� � ��%(F = �&9D0 `%(l8.�PQA:9DF > $8z-0/ � ��0/ ��g1+34 ihj5$`]k£zIW�.1F£R,(9YC8%V¦ ��� ¦OS

Page 68: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

�������8� -��� ���C� ����� ������� ������������ �

¥ �=© �IS �&%(AB?8.1?8%(? zD«`S j.��1%(FJz'& S &ª%(A:'+'n% �IS &ªF+9Q,(7B.�B-' ��Agz!" < '*'+58F*%(CY«@9DF Bj.1F*C8AB?Iks� � �@bF+9D580 $8z-0/ � ��0/ ��g1+34 _5�b��<a/z �*58?8l89XC8% � � � �OS

¥ ��� © �S `l8.1?8ABF+.1W �wzn�nSENQ58?�%[¤aS �D.1A:?3z "6L;[email protected]|),�91o_NO%(FuPQAB,(%[58'+A:?8kt)6F6.��[,X%(?IkDAB?8%J%(F*AB?8k¡9 P1%(F���K�nN^�^.1?�[email protected]'*AB'%$Iz]-I>�>Y> >�/�� �� T/]� �>�/�� >$� DPSY >������ � ���� ��H� > �I!$#ez PD9D7 S � z^?89IS ¦KGOz080 Sw¦1¨��c*I¦£­ � zI?I9 P1%(WZHIF+9XC8%i¦ ����� S

¥ ��� ©iT_SG¤-9D'+%J?3z < S �;A:'DB`.1?@.=)[email protected]? %v¤aS#Ij.17B7:9D?3z "6�¡5I7:)6A:08F+9=)69Q,(9D7q� .1H^%J7&N B-A:)+,]l8AB?Ik < F+,]lIA:)6%J,%=)+58F+% $8z.-T/ ���0/ ���1+3C ih 8'h[1z£�+.1?I%(ABF*9YC8%i¦ ��� � S

¥ � ¦£©iT_SM¤&91'+%(? z �ZSGm�[email protected]? zA@}SK«@%JC89DF �=9�B>z�)YSK¤-% ��l\)6%(FJz �ZSK« .1F+A:[email protected],(,JAgzKmbSM��A&% < S I`91?�)6.Iz"6�¡�M�nNt� .1H^%J7 NQ)6.1, �tTG?8,(9QC8AB?Ik $8z.-0/ � ��0/ ��21 3C _h 8'hj5\z �+.1?8%(A:F+9}C8%i¦ ��� � S

¥ � ¨=©i�GS < ?IC8%(F*'+'+91?3zD�nS��;9Q9D7B.1?3z $iS «@%J7BC8W[.1?3z < S=«@F*%(C8%e)+)6%K% �S�m_l89DW[.1'Jz "+� �b��NQ0^%J,(A:d8,/.=)+AB9D? $Iz-0/ � ��0/ ��g1+34 ih 8�59k£z �+.1?8%(A:F+9YC8%i¦ ��� � S

¥ � ­1© �S �D.1W[9158'+'*Agz&T_S-�KS < ?8C8%JF+'*'+9D?3z;¤aSAIj.=7B7B91?3z&¤aS �ZS`�GSe&�5 z;��S �;9O9D7B.1?3z-mbSe&ª9DF+'u)6%JF(z$aSj«@%(7:C8W�.=?3z < S`«@F+%(CI%J)+)+%1z��ªSA@bABF*AB'+l z_T_SA@>F+. Dz �IS �&%(AB?8.1?8%(? z&mbSC;>A:7:), % < S_��.17:AB'Jz" I`91?8'*)+F6.1A:?�) = j.='+%(Cv�nNI� NQ%J)65I0�58'*AB?8kX� �b� $8z.-T/ ���0/ ���1+3C ih 8P[P5\z �+.=?8%(A:F+9}C8%i¦ ��� ¦QS

¥ � G£© � �A/U����� ��0/ TS SGl�)*)603�! " B B B>S �1%JF+?8%J7gS 9DF+k� Oz^¦ ��� ¨IS¥ � �=©��2=�� $#%� �A/U��� = �D> � "��� SGl\)+)+03�& ' =W[0I7B' = 7BA:?Q5 $ S '+9158F+,J%Jop9DF*kD%1S ?8%J)( Oz ¦ ��� ¨IS¥ � �£© _>�� �I� �3�> �H� eS�l\)*)603�! " ='*9D58F+,J%Jop9DF*kD%1S ?8%e)) Oz^¦ ��� ¨IS¥ � �=©+* �, � D �BD T� >�/@SEl�)*)603�! " B B B>S y(%JH8F6.OS§9DF*k- Oz^¦ ��� ¨IS¥ � �=© - � � D�,ES "#eS�l\)*)603�! " =?8%e)+d@7|)6%JF(S '6.1WZH8.IS§91F+k- Oz@¦ ��� ¨IS¥ ¦ � © -?=Y1 >�� � T5\SGl\)*)603�! " B B B>S 9D0w%(?8,J9D?\)6%(?\)(S§9DF*k- =9D0w%(?I0858H$ Oz3¦ ��� ¨OS¥ ¦ � © -?= ��.� S�l\)*)603�! " =C@.='*)/S ?87B.1?8F(S ?8%e)) 1�GF+9 �*%(,J)+'( =�°0w%(Fuo/ Oz^¦ ��� ¨OS¥ ¦D¦£© �aS@NO,]l�587:y(F+A:?8?8%=zwN^S�Ij.1'*?8%(FJz ¤aS@«@F*%(C8%JF+AB, �[% �ZS �D.=,(9DH8'*9D?3z "*¤Em-�_� < m�F+.1?8'*0^9DFu)&�GF+91)+9O,J9D7

op9DF-¤-%/.=7 =°m_A:W[% < 080I7BAB,(.=)6A:9D? $8z9-T/ ���0/ ���1+3C i[j:7:-�1z£�+.=?8%(A:F+9}C8% � � ���OS¥ ¦1¨=©�@YS ��.17 ��AB?3z�"+¤&��� �K%(F+'*AB9D?¡¦ $Iz�-T/ ���T/ ��g1+3C _5$`�bjhDz8?89�PD%JWZH8F*9[C8% � � ���IS

!

Page 69: Federal University of Rio de Janeiro · 2005-09-23 · c~m i{ {c~ ~m{c~m { {c~ ~ i ~ @ 1 V ~` f {c~`1 ^ $~ {c~ ~ ~ f ~ {c~ 1m ^ Q T !#"%$ &(')"*')+ ,.-0/ 132-345'768+:9-;&=#'A@

�������8������ ���C� ����� ������� ������������ �

¥ ¦=­1© �IS �v9c1z " � NI�K« �K%JF+'*AB9D?�¦ $8z.-0/ � ��0/ ��g1+34 5hj5:[email protected]*AB7 CI% � � ���IS¥ ¦HG£©VN^S;b%J'+l@./PX%&¤aSQNOl8.1F+W[.Iz "*�°'*'+58%J'j.1?8CX)6F*%(?8C8'MAB?}F*9D5I)6%JFqCI%('+A:kD? $8z -I>Y>�> >�������/ �V� D ���9>�/9#

� D$�7D � �A/ ezI?89IS � z80803S � ­D­�* � G � zIW[.1AB9YCI% � � ���IS¥ ¦��=©��2=�� � �A/U����� � #�� S l�)*)603�! " ='*9D58F*,(%Jop91F+kD%=S§?8%e)) =W[.1A:7h.1F*,]l8A:P1% £op9DF*58WvS§08lI0��(op9DF+58W��;W[0I7B' =

7:AB?�5 $�=°kD%J?8%(F+.17gz8¦ ��� ¨OS

! �