14 resultados para Vieira do Minho

em Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho"


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The problem of escape/capture is encountered in many problems of the celestial mechanics -the capture of the giants planets irregular satellites, comets capture by Jupiter, and also orbital transfer between two celestial bodies as Earth and Moon. To study these problems we introduce an approach which is based on the numerical integration of a grid of initial conditions. The two-body energy of the particle relative to a celestial body defines the escape/capture. The trajectories are integrated into the past from initial conditions with negative two-body energy. The energy change from negative to positive is considered as an escape. By reversing the time, this escape turns into a capture. Using this technique we can understand many characteristics of the problem, as the maximum capture time, stable regions where the particles cannot escape from, and others. The advantage of this kind of approach is that it can be used out of plane (that is, for any inclination), and with perturbations in the dynamics of the n-body problem. © 2005 International Astronomical Union.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Linguística e Língua Portuguesa - FCLAR

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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

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Pós-graduação em Letras - FCLAS

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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O texto examina a elaboração artística do 'pretoguês' - forma pejorativa com que oscolonizadores portugueses denominavam a linguagem híbrida português/quimbundo utilizada pela população angolana - na obra do escritor angolano José Luandino Vieira.

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The article discusses characteristics of the library collection of the Escola Estadual Leônidas do Amaral Vieira, from Santa Cruz do Rio Pardo (SP), which subsidized the research on history of didactics at the Instituto de Educação of this school, from 1953 to 1975. We present aspects of the school and its collection about didactics in light of theoretical and methodological aspects related to the history of school subjects.

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