Scientific Electronic Library Online

Library Collection
Print ISSN 1806-1117

Most visited issue

(measured by access to table of contents, abtracts,
html articles and PDF articles)

*  Count started in August , 2002.


Display issue visited times or more.    

Page 1 of 13 [First]  [Previous]  [Next]  [Last]

nr. of requests

article reference

55511 PIRES, Denise Prazeres Lopes, AFONSO, Júlio Carlos and CHAVES, Francisco Artur Braun. The thermometry in the XIXth and the XXth centuries. Rev. Bras. Ensino Fís., 2006, vol.28, no.1, p.101-114. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

46426 SILVA, Luciano Fernandes and CARVALHO, Luiz Marcelo de. A Temática Ambiental e o Ensino de Física na Escola Média: Algumas Possibilidades de Desenvolver o Tema Produção de Energia Elétrica em Larga Escala em uma Situação de Ensino. Rev. Bras. Ensino Fís., 2002, vol.24, no.3, p.342-352. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

44817 CAVALCANTE, Marisa Almeida, SILVA, Elias da, PRADO, Reginaldo do et al. O Estudo de Colisões através do Som. Rev. Bras. Ensino Fís., 2002, vol.24, no.2, p.150-157. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

44094 DONOSO, José Pedro, TANNúS, Alberto, GUIMARãES, Francisco et al. The physics of the violin. Rev. Bras. Ensino Fís., 2008, vol.30, no.2, p.2305.1-2305.21. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

42003 BENDER, André L., SBARDELOTTO, Diomar R. and MAGNO, Wictor C. Using DC motors in Physics experiments. Rev. Bras. Ensino Fís., 2004, vol.26, no.4, p.401-405. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

41407 VEIT, E. A. and TEODORO, V. D. Modelling in teaching: learning of physics and the new Brazilian high school curricular parameters. Rev. Bras. Ensino Fís., 2002, vol.24, no.2, p.87-96. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

33810 AGUIAR, C.E. and RUBINI, G. Aerodynamics of the soccer ball. Rev. Bras. Ensino Fís., 2004, vol.26, no.4, p.297-306. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

33554 ARAúJO, Mauro Sérgio Teixeira de and ABIB, Maria Lúcia Vital dos Santos. Experimentals activities in physics teaching: differents approaches, differents objectives. Rev. Bras. Ensino Fís., 2003, vol.25, no.2, p.176-194. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

33112 MEDEIROS, Alexandre. The Historical Origins of the Electroscope. Rev. Bras. Ensino Fís., 2002, vol.24, no.3, p.353-361. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

31474 MAGALHãES, Murilo de F., SANTOS, Wilma M. S. and DIAS, Penha M. C. A proposal for teaching the concepts of electric and magnetic field: an application of history of physics. Rev. Bras. Ensino Fís., 2002, vol.24, no.4, p.489-496. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

30230 BRANíCIO, Paulo S. Introduction to the superconductivity, its applications and the mini-revolution provoked by the rediscovered of the MgB2: a didactic approach. Rev. Bras. Ensino Fís., 2001, vol.23, no.4, p.381-390. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

28965 AGUIAR, C. E. and LAUDARES, F. Aquisição de dados usando Logo e a porta de jogos do PC. Rev. Bras. Ensino Fís., 2001, vol.23, no.4, p.371-380. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

25686 HESSEL, R., OLIVEIRA, C.S. de, SANTARINE, G.A. et al. Electronic counter in undergraduate laboratories: part I. Assembly and applications. Rev. Bras. Ensino Fís., 2008, vol.30, no.1, p.1501.1-1501.12. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

25028 RIGOLIN, Gustavo and RIEZNIK, Andrés Anibal. Introduction to quantum cryptography. Rev. Bras. Ensino Fís., 2005, vol.27, no.4, p.517-526. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

23967 DIAS, Penha Maria Cardoso, SANTOS, Wilma Machado Soares and SOUZA, Mariana Thomé Marques de. The Universal Gravity: a text for highschool students. Rev. Bras. Ensino Fís., 2004, vol.26, no.3, p.257-271. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

23816 LLANCAQUEO, Alfonso, CABALLERO, Mª Concesa and MOREIRA, Marco Antonio. El aprendizaje del concepto de campo en física: una investigación exploratoria a luz de la teoría de Vergnaud. Rev. Bras. Ensino Fís., 2003, vol.25, no.4, p.399-417. ISSN 1806-1117.

        · abstract in spanish | english     · text in spanish

23792 MARTINS, F.R., GUARNIERI, R.A. and PEREIRA, E.B. The wind energy resource. Rev. Bras. Ensino Fís., 2008, vol.30, no.1, p.1304.1-1304.13. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

23238 TAVARES, M. and SANTIAGO, M.A.M. Atmospheric electricity and correlated phenomenon. Rev. Bras. Ensino Fís., 2002, vol.24, no.4, p.408-414. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

21611 WELTNER, Klaus, INGELMAN-SUNDBERG, Martin, ESPERIDIãO, Antonio Sergio et al. Complementation of fluid dynamics and aerodynamic lift. Rev. Bras. Ensino Fís., 2001, vol.23, no.4, p.429-443. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

20876 MARTINS, Fernando Ramos, PEREIRA, Enio Bueno and ECHER, Mariza Pereira de Souza. Solar energy resources assesment using geostationary satellites in Brazil: Swera Project. Rev. Bras. Ensino Fís., 2004, vol.26, no.2, p.145-159. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

20663 MAGNO, Wictor C. and MONTARROYOS, Erivaldo. Decoding the TV remote control with a PC sound card. Rev. Bras. Ensino Fís., 2002, vol.24, no.4, p.497-499. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

20169 BAPTISTA, José Plínio. The fundamental principles of physics and the history of physics. Rev. Bras. Ensino Fís., 2006, vol.28, no.4, p.541-553. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

19661 BELéNDEZ, Tarsicio, NEIPP, Cristian and BELéNDEZ, Augusto. Estudio de la Flexión de una Viga de Material Elástico no Lineal. Rev. Bras. Ensino Fís., 2002, vol.24, no.4, p.383-389. ISSN 1806-1117.

        · abstract in spanish     · text in spanish

19420 OLIVEIRA, P.M.C. de and DECHOUM, K. Towards better understanding of the second law of thermodynamics. Rev. Bras. Ensino Fís., 2003, vol.25, no.4, p.359-363. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

19295 CARVALHO, Ricardo Egydio de and SILVA, Ana Paula Morinelli Amaral da. Eccentric cylindrical capacitor. Rev. Bras. Ensino Fís., 2002, vol.24, no.3, p.290-295. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

18587 SILVA, Reginaldo da, CHIQUITO, Adenilson J., SOUZA, Marcelo G. de et al. "Homemade" solar cells. Rev. Bras. Ensino Fís., 2004, vol.26, no.4, p.379-384. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

18367 OLIVEIRA, Fabio Ferreira de, VIANNA, Deise Miranda and GERBASSI, Reuber Scofano. Modern physics in secondary schools: what teachers say about it. Rev. Bras. Ensino Fís., 2007, vol.29, no.3, p.447-454. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

18247 NEGRINI NETO, O. Electronic Solutions for Velocity Evaluation in Traffic Accidents. Rev. Bras. Ensino Fís., 2002, vol.24, no.2, p.124-128. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

18135 FIOLHAIS, Carlos and TRINDADE, Jorge. Physics in the computer: the computer as a tool in the education and the learning of physical sciences. Rev. Bras. Ensino Fís., 2003, vol.25, no.3, p.259-272. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

17940 GUADAGNINI, Paulo H. and BARLETTE, Vania E. A direct reading electronic thermometer with thermistor. Rev. Bras. Ensino Fís., 2005, vol.27, no.3, p.369-375. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

17534 MEDEIROS, Alexandre and MEDEIROS, Cleide Farias de. Possibilities and Limitation of Computer Simulations in Physics Teaching. Rev. Bras. Ensino Fís., 2002, vol.24, no.2, p.77-86. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

17120 CASTELLANI, Otávio Cesar. Discussion on the concepts of inertial mass and gravitational mass. Rev. Bras. Ensino Fís., 2001, vol.23, no.3, p.356-359. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

17069 BELéNDEZ, Augusto. The unification of light, electricity and magnetism: Maxwell's electromagnetic synthesis. Rev. Bras. Ensino Fís., 2008, vol.30, no.2, p.2601.1-2601.20. ISSN 1806-1117.

        · abstract in spanish | english     · text in spanish

16938 COSTA, Eden V. and ALMEIDA, Lucia C. Three-dimensional images: formation and analysis. Rev. Bras. Ensino Fís., 2005, vol.27, no.2, p.231-235. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

16736 ROBERT, Renê. The Helmholtz coil. Rev. Bras. Ensino Fís., 2003, vol.25, no.1, p.40-44. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

16734 MOSSMANN, Véra Lúcia da Fonseca, CATELLI, Kelen Berra de Mello Francisco, LIBARDI, Helena et al. Determination of static and kinetic friction coefficients using automatic data colletction. Rev. Bras. Ensino Fís., 2002, vol.24, no.2, p.146-149. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

15676 MATTOS, Cristiano and GASPAR, Alberto. A specific heat measure without calorimeter. Rev. Bras. Ensino Fís., 2003, vol.25, no.1, p.45-48. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

15665 SILVA, Wilton P., SILVA, Cleide M. D. P. S. e, SILVA, Cleiton D. P. S. e et al. Presentation of the Educational Software "Vest21 Mechanics". Rev. Bras. Ensino Fís., 2002, vol.24, no.2, p.221-231. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

15396 COSTA, Eden V. Relative air humidity measurements in a closed environment. Rev. Bras. Ensino Fís., 2003, vol.25, no.3, p.346-348. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

15120 ARRUDA, José Ricardo Campelo. A didactic model for the physics teaching-learning. Rev. Bras. Ensino Fís., 2003, vol.25, no.1, p.86-104. ISSN 1806-1117.

        · abstract in spanish | english     · text in spanish

15083 CHAIB, J.P.M.C. and ASSIS, A.K.T. Oersted's experience in the classroom. Rev. Bras. Ensino Fís., 2007, vol.29, no.1, p.41-51. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

15007 PEREIRA, Rodrigo Gonçalves and MIRANDA, Eduardo. Introdução à Teoria Quântica de Campos: do Oscilador Harmônico ao Campo Escalar Livre. Rev. Bras. Ensino Fís., 2002, vol.24, no.2, p.237-246. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

14959 VEIT, E. A., MORS, P. M. and TEODORO, V. D. Illustrating Newton's Second Law in the 21st Century. Rev. Bras. Ensino Fís., 2002, vol.24, no.2, p.176-184. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

14654 MENDES JR., Odim and DOMINGUES, Margarete Oliveira. Introduction to the atmospheric electrodynamics. Rev. Bras. Ensino Fís., 2002, vol.24, no.1, p.3-19. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

14560 BARBETA, Vagner Bernal and YAMAMOTO, Issao. Conceptual Physics difficulties presented by freshmen in an engineering course. Rev. Bras. Ensino Fís., 2002, vol.24, no.3, p.324-341. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

14298 SCARINCI, Anne Louise and PACCA, Jesuína Lopes de Almeida. A course of astronomy and the students' preconceptions. Rev. Bras. Ensino Fís., 2006, vol.28, no.1, p.89-99. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

14218 ECHER, E., SOUZA, M. P. and SCHUCH, N. J. The Beer's law applied to the earth's atmosphere. Rev. Bras. Ensino Fís., 2001, vol.23, no.3, p.276-283. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

14166 KANDUS, Alejandra, GUTMANN, Friedrich Wolfgang and CASTILHO, Caio Mário Castro de. The physics of mechanical oscillations in musical instruments: example of berimbau. Rev. Bras. Ensino Fís., 2006, vol.28, no.4, p.427-433. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

14139 BELéNDEZ, Tarsicio, NEIPP, Cristian and BELéNDEZ, Augusto. Flexión de Una Barra Delgada Empotrada en un Extremo: Aproximación para Pequeñas Pendientes. Rev. Bras. Ensino Fís., 2002, vol.24, no.4, p.399-407. ISSN 1806-1117.

        · abstract in spanish     · text in spanish

14085 SILVEIRA, Fernando Lang da and AXT, Rolando. A qualitative explanation for "Thomson's ring" experiment: how does the "magnetic levitation" happen?. Rev. Bras. Ensino Fís., 2003, vol.25, no.1, p.81-85. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

14070 BOSE, Satyandranath. A lei de Planck e a hipótese dos quanta de luz. Rev. Bras. Ensino Fís., 2005, vol.27, no.3, p.463-465. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

14056 FIGUEIRA, Jalves S. and VEIT, Eliane A. Using Excel to measure time intervals in the Physics lab. Rev. Bras. Ensino Fís., 2004, vol.26, no.3, p.203-211. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

13911 MAGNO, Wictor C., ARAUJO, Alberto E. P. de, LUCENA, Marcos A. et al. Making didactic experiments with the sound system of a PC. Rev. Bras. Ensino Fís., 2004, vol.26, no.2, p.117-123. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

13847 LIMA, E.F. de, FOSCHINI, M. and MAGINI, M. O efeito termoiônico: uma nova proposta experimental. Rev. Bras. Ensino Fís., 2001, vol.23, no.4, p.391-394. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

13797 BLEICHER, Lucas, SILVA, Moésio Medeiros da, RIBEIRO, Júlio Wilson et al. Computer-aided sound wave analysis and simulation. Rev. Bras. Ensino Fís., 2002, vol.24, no.2, p.129-133. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

13653 ROCHA FILHO, João Bernardes da, SALAMI, Marcos Alfredo and HILLEBRAND, Vicente. Build-up and characterization of a photoelectric cell for didactic purposes. Rev. Bras. Ensino Fís., 2006, vol.28, no.4, p.555-561. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

13133 DAMASIO, Felipe and STEFFANI, Maria Helena. Teaching physics with ecologic consciousness and with detachable materials. Rev. Bras. Ensino Fís., 2007, vol.29, no.4, p.593-597. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

13021 GRECA, Ileana Maria, MOREIRA, Marco Antonio and HERSCOVITZ, Victoria E. Uma proposta para o ensino de mecânica quântica. Rev. Bras. Ensino Fís., 2001, vol.23, no.4, p.444-457. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

12766 MOREIRA, Marco Antonio. The Standard Model of Particle Physics. Rev. Bras. Ensino Fís., 2009, vol.31, no.1, p.1306.1-1306.11. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

12681 RAMOS, Theodoro A. Introdução à mecânica dos "quanta" Parte I. Rev. Bras. Ensino Fís., 2003, vol.25, no.3, p.326-332. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

12437 PLEITEZ, V. Bohr: The architect of the atom. Rev. Bras. Ensino Fís., 2003, vol.25, no.2, p.250-255. ISSN 1806-1117.

        · text in portuguese

12436 COELHO, L.F.S. Uniformity and diversity on the basic physics teaching the physics courses for biology, industrial design and pharmacy. Rev. Bras. Ensino Fís., 2002, vol.24, no.1, p.47-60. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

12427 SILVA, Wilton Pereira da, SILVA, Cleide M. D. P. S. e, PRECKER, Jürgen W. et al. Sphere rolling down in a rough inclined plane: conservation of the mechanical energy and frictional force. Rev. Bras. Ensino Fís., 2003, vol.25, no.4, p.378-383. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

12349 CLEBSCH, Angelisa Benetti and MORS, Paulo Machado. Exploring simple computational and audiovisual resources in teaching Fluids. Rev. Bras. Ensino Fís., 2004, vol.26, no.4, p.323-333. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

12155 SILVA, Wilton Pereira da, PRECKER, Jürgen W., SILVA, Cleide M. D. P. S. e et al. Measurement of specific heat and Newton's law of cooling: a refinement in the analysis of the experimental data. Rev. Bras. Ensino Fís., 2003, vol.25, no.4, p.392-398. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

12057 SILVEIRA, Fernando Lang da. The variations within main phases of the Moon time intervals. Rev. Bras. Ensino Fís., 2001, vol.23, no.3, p.300-307. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

11856 RICARDO, Elio Carlos, CUSTóDIO, José Francisco and REZENDE JUNIOR, Mikael Frank. Technology as a reference to scholar knowledges: theoretical perspectives and teacher's conceptions. Rev. Bras. Ensino Fís., 2007, vol.29, no.1, p.135-147. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

11839 ROHLING, Jurandir Hillmann, NEVES, Marcos Cesar Danhoni, SAVI, Arlindo Antonio et al. Production of Didactic Short-Duration Films and CD-ROM for Physics Teaching. Rev. Bras. Ensino Fís., 2002, vol.24, no.2, p.168-175. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

11464 KLEPPNER, Daniel. Rereading Einstein on radiation. Rev. Bras. Ensino Fís., 2005, vol.27, no.1, p.87-91. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

11404 STUCHI, Adriano M. and FERREIRA, Norberto Cardoso. Analysis of a scientific exposition and proposal of intervention. Rev. Bras. Ensino Fís., 2003, vol.25, no.2, p.207-217. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

11384 PORTO, C.M. and PORTO, M.B.D.S.M. Evolution of the cosmological thought and the birth of Modern Science. Rev. Bras. Ensino Fís., 2008, vol.30, no.4, p.4601.1-4601.9. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

11371 DOMINGUES, Margarete Oliveira and MENDES JR., Odim. Introduction to physical-mathematical free software. Rev. Bras. Ensino Fís., 2003, vol.25, no.2, p.148-156. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

11191 ARAúJO, Weslei Silva de and RODRIGUES, Clóves Gonçalves. Comparative study on the contents of Quantum Mechanics and Modern Physics courses. Rev. Bras. Ensino Fís., 2001, vol.23, no.3, p.360-365. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

11175 SILVEIRA, Fernando Lang da, AXT, Rolando and PIRES, Marcelo Antônio. What do we view looking to ourselves in a concave mirror?. Rev. Bras. Ensino Fís., 2004, vol.26, no.1, p.19-25. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

10978 BERNARDES, Tamara O., BARBOSA, Rafael R., IACHEL, Gustavo et al. Optics teaching through telescope construction. Rev. Bras. Ensino Fís., 2006, vol.28, no.3, p.391-396. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

10909 PINTO NETO, O., MAGINI, M. and SABA, M.M.F. Kinematic analysis of a Kung Fu movement: the importance of a proper physical interpretation of data obtained by high speed cameras. Rev. Bras. Ensino Fís., 2006, vol.28, no.2, p.235-239. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

10800 ALMEIDA, Voltaire de O. and MOREIRA, Marco A. Concept maps as instructional aid to promote meaningful learning of optical physics concepts. Rev. Bras. Ensino Fís., 2008, vol.30, no.4, p.4403.1-4403.7. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

10575 ROCHA, Fábio Saraiva da and FRAQUELLI, Henrique Aita. An outline to the experiment of levitation on a superconductor in Physics teaching. Rev. Bras. Ensino Fís., 2004, vol.26, no.1, p.11-18. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

10494 VIEIRA, Sumaia, BARROS, A., ARAúJO, I. et al. A comparison among deductions of the equation E=mc². Rev. Bras. Ensino Fís., 2004, vol.26, no.2, p.93-98. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese

10364 MOREIRA, Marco Antonio. Quark physics and epistemology. Rev. Bras. Ensino Fís., 2007, vol.29, no.2, p.161-173. ISSN 1806-1117.

        · abstract in portuguese | english     · text in portuguese


Page 1 of 13 [First]  [Previous]  [Next]  [Last]


© 2004  SciELO
scielo@scielo.org
scielo@scielo.org