892 resultados para fisica teórica


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O objetivo deste artigo é, essencialmente, fundamentar teoricamente as políticas industriais, sobretudo mostrando as razões da preferência por um referencial teórico não equilibrista e não-maximizador. Busca-se também definir de maneira eficaz estas políticas, destacando seus resultados positivos - pelo menos potencialmente - em termos de alguns parâmetros (produção, eficiência, produtividade, renda, bem-estar, etc.). Para isso define-se política industrial, analisando-se também as razões da despreocupação com uma fundamentação mais rigorosa das políticas industriais. Em seguida, apresenta-se sucintamente se uma teoria capaz de embasar estas políticas, ao mesmo tempo em que se analisa se tais teorias são importantes (ou não), em termos empíricos. Nesta segunda parte discute-se a possível utilidade da política industrial, enfatizando falhas de mercado, bens públicos, mercados não-competitivos, externalidades e desenvolvimento tecnológico.

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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This article is part of the methodological approach concerning theoretical investigation aspects, developed from the analysis of research in Psychoanalysis. Due to its peculiarities, research in Psychoanalysis raises issues and questions which advance far beyond the positivist conceptions which underline the dominant paradigm of our present day production of knowledge. Considering Psychoanalysis as the effect of the psychoanalitic act in itself, mainly when considering its theoretical scientific approach which must be part of a specific method, the following question is raised: what are the real possibilities of research in Psychoanalysis, specifically theoretic al research in Psychoanalysis? The article aims at articulating relevant issues concerning the field of Psychoanalysis and their relevant development for research in this field. To sum up, the article highlights issues concerning the role of the researcher as a necessary and decisive condition for any theoretical research in the field of Psychoanalysis.

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This article provides a theoretical reflection on the relationship between public policies and the social vulnerability of children and adolescents, based on the supervised internship of students of Psychology at UNESP/Campus Assis. The work revealed the need to examine the implications that social vulnerability concepts and public policies have in this area of professional activity. The study indicated the importance of addressing the ways that social vulnerability arises, and suggested possible contributions that psychology could make in the social sphere. The work highlights the need for the future psychologist to deepen his/her knowledge of these issues in order to develop a critical professional attitude that breaks from the approach in which individuals and/or their families are considered responsible for the processes that maintain them at risk.

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This paper presents the extension project Youth Empowerment for Work and Citizenship. It is a psychosocial and an educational activity focused on the care of impoverished youths, aged between 14-19, from Assis-SP. It aims to contribute to the cognitive, affective and social process of the participants. The extension activity has benefited the education of Psychology undergraduates students to the mediation in human development under nonformal education. The theoretical and methodological background is based on the cultural-historical psychology of Vigotski. The results obtained are: the establishment of partnerships between universities and state and local public organizations; the incorporation of innovative thematic in psychology curriculum course at UNESP; production of academic-scientific research about the experience of Psychologists in social educational area; and the participation of one hundred young people as well as their parents or legal guardians in the project.

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In this work we present a didactic proposal to use song lyrics for Physics Teaching aimed to High School level. Based on the work proposed by Zanetic (1990) that Physics is also Culture, we understand that its influence extends beyond the scientific boundaries, reaching spheres of knowledge where its presence is less obvious, such as the arts, especially Music. Based on proposals for Ramos and Gomes (2013), activities were conducted in two groups of second year of high school in the city of Rio Claro, each with an approach. In one of the classes the students received as material the lyrics of the songs printed and the other students were given a table along with the lyrics. In these materials the students identified physical concepts present in the songs Nuclear Shelter of the São Paulo band Premeditando the Breque and Manhattan Project of the Canadian band Rush. We observed during activities an improvement in the participation of students in theoretical discussions, probably due to a more favorable context for students to express themselves assigned by us to the activities with the songs. After performing the activities we demonstrated that you can enter the Music in the classroom not only as entertainment but as an aid in research and understanding of physical concepts

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We investigate in this work the behaviour of the decay to the fixed points, in particular along the bifurcations, for a family of one-dimensional logistic-like discrete mappings. We start with the logistic map focusing in the transcritical bifurcation. Next we investigate the convergence to the stationary state at the cubic map. At the end we generalise the procedure for a mapping of the logistic-like type. Near the fixed point, the dynamical variable varies slowly. This property allows us to approximate/rewrite the equation of differences, hence natural from discrete mappings, into an ordinary differential equation. We then solve such equation which furnishes the evolution towards the stationary state. Our numerical simulations confirm the theoretical results validating the above mentioned approximation

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