1991
Rio de Janeiro
National Laboratory for Scientific Computing (LNCC-CNPq) - Rio de Janeiro, Rio de Janeiro City Hall - Mayor Marcello Alencar and Entourage; Brazilian Center for Physics Research (CBPF) - Rio de Janeiro; Brazilian Academy of Sciences (ABC) - Rio de Janeiro; Brazilian Society for the Advancement of Science (SBPC) - Rio de Janeiro.
Brasília
National Council for Scientific and Technological Development/CNPq. Minister Heloísa Vilhena de Araújo and Ambassador Wladimir Murtinho - Brasília; Meeting of the Commission of Coordinators of the Advisory Committees/CCCA, CNPq - Brasília.
1992
SESI/Minas, Belo Horizonte.
1993
Brazilian Intellectual Property Association (ABPI), in Rio de Janeiro.
1994
Minas Gerais
Meeting of Scientific Editors, Brazilian Association of Scientific Editors (ABEC), at Hotel Glória, Caxambu
Paraná
International Conference on Software Technology - Multimedia, at the Curitiba International Technology Center; Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI-94), at the Bourbon Hotel, Curitiba.
Rio de Janeiro
Regional Meeting of Applied and Computational Mathematics, of the Brazilian Society of Applied and Computational Mathematics (SBMAC), at the Federal University of Rio de Janeiro (UFRJ); Forum of Informatics and Culture, at the Museum of the Republic; C3AD - Colloquia em Computação Científica de Alto Desempenho, at the National Laboratory of Scientific Computing (LNCC) - Rio de Janeiro; "Atlantic" Virtual Reality Exhibition, at the Cândido Mendes Cultural Center - Rio de Janeiro.
São Paulo
International Developers Congress (IDO), Prom. Softex 2000, at the Gazeta Mercantil Convention Center, Santo Amaro.
1995
Brasília
Ministry of Science and Technology, Lecture Commemorating 10 Years of the Ministry of Science and Technology, Black Room of the National Congress, Brasilia.
Rio de Janeiro
COMDEX/Rio'95. Closing Lecture (Portinari Project: from Brodowsky to Multimedia) Riocentro - Rio de Janeiro.
São Paulo
School of Communication and Arts (ECA) of the University of São Paulo (USP). This was the Aula Magna of the 1995 academic year. Museum of Contemporary Art (MAC) of the University of São Paulo (USP); COMDEX/São Paulo'95. Opening Lecture (Portinari Project: from Brodowsky to Multimedia) Palácio das Convenções - São Paulo
Overseas
ED-MEDIA'95/ World Conference on Educational Multimedia and Hypermedia, Closing Lecture, Graz, Austria;
University of California, Berkeley, United States. Lecture that inaugurated the Berkeley Multimedia Research Center (University of California).
1996
São Paulo
Sebrae; COMDEX/SP - Museum Working Group of the Brazilian Internet Steering Committee Workshop - Anhembi Convention Center - São Paulo.
Minas Gerais
João Pinheiro Foundation and the Secretariat of Culture, Belo Horizonte.
Rio de Janeiro
International Congress "City and Education for Peace" (at the invitation of the Municipal Department of Culture), at RioCentro; Museum of the Republic, Brazil-France Virtual Exhibition of Cultural Multimedia; Department of Mathematics of the Pontifical Catholic University of Rio de Janeiro (PUC-Rio) - 30 Years of the Department of Mathematics "Portinari Project: Science and Technology Promote Art";
Overseas
COMDEX, Las Vegas, the United States.
1997
Rio de Janeiro
Centro Cultural Banco do Brasil (CCBB – Banco do Brasil Cultural Center); Petrobras; Virtual Museums Working Group / GT de Museus, at the Pontifical Catholic University of Rio de Janeiro (PUC-RIO).
1998
Institute of Pure and Applied Mathematics/IMPA, "Portinari Project: Applications of Science and Technology & Art and Culture" - Rio de Janeiro.
1999
Brasília
First National Interlegis Seminar - Program for Computerization of the Federal Senate, Brasilia.
São Paulo
Pedro II Theater - Meira Junior Auditorium - Ribeirão Preto, SP "Portinari Project - a man, a time, a nation" - Sponsorship - CPFL and EPTV; São Paulo; Mario Schenberg Center, Aula Magna of the III Congress of Art and Science, at the School of Communications and Arts (ECA), University of São Paulo (USP); Institute of Advanced Studies, University of São Paulo (IEA/USP), Conference of the Month.
Overseas
Simposio Latinoamericano y del Caribe on "Information Technologies and Society, their Use and Present and Future Impact", Aguas Calientes, Mexico;
