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Search Results: 1 - 10 of 352 matches for " Nivaldo; "
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Programa o de Ensino no Brasil: o Papel de Carolina Bori
Nale Nivaldo
Psicologia USP , 1998,
Abstract: O artigo examina a evolu o das pesquisas sobre programa o de ensino no Brasil e analisa o papel decisivo que coube à Profa. Carolina Bori nesse processo. Atuando como orientadora, docente, consultora e administradora, Carolina está na raiz dos principais avan os nessa área, a partir do surgimento dos chamados cursos programados individualizados, no início da década de 60. Esses avan os incluem: a importancia da proposi o de objetivos como primeiro passo na programa o; a necessidade de, através de pesquisa empírica, buscar objetivos de ensino para além dos limites determinados pelo que tradicionalmente se ensina; a busca de alternativas inovadoras para a disposi o de contingências de ensino; a concep o de atividades como recurso para o ensino de habilidades, conhecimentos, métodos etc. O artigo aponta, também, importantes contribui es teóricas resultantes dos estudos sobre programa o.
Dietary habits and energy expenditure of students in Sciences Biological
Nivaldo Moterle
Evidência : Ciência e Biotecnologia - Interdisciplinar , 2009,
Abstract: The physical activity associated with good eating habits can promote healthy lifestyle, quality of life and well-being of individuals. The excess body fat can be avoided since there is a balance between the level of physical activity and daily energy consumption. The aim of this study was to investigate dietary habits and energy expenditure of students in Biological Sciences and Health area (ACBS), at UNOESC, in Joa aba. It was used as a tool for data collection a questionnaire by itself, with socio-demographic, economic and dietary habits questions. Questions were used from IPAQ (International physical Activity Questionnaire) - version8, short form - to identify the level of physical activity. The sample comprised 345 individuals, with average of 22.1 years. The investigatedstudents had large intake of foods high in saturated fat and 74,8% were considered active academics. The study allowedus to know that academics from courses in the Health area of UNOESC in Joa aba have a pattern of dietary habits that is notrecommended for a healthy life, with a high intake of saturated fats and sweets in general. However, they showed a recommendedcaloric expenditure and the great majority were considered physically active. The results suggest the need for association betweenphysical exercise practice and proper nutrition to improve the quality of life for the population.
Formula??o geométrica do princípio de d'Alembert
Lemos, Nivaldo A.;
Revista Brasileira de Ensino de Física , 2005, DOI: 10.1590/S1806-11172005000300026
Abstract: by means of a natural extension of the notion of parametric representation of surfaces in euclidean three-dimensional space, we give a geometric formulation of d'alembert's principle without the use of infinitesimal quantities.
Sutilezas dos vínculos n?o-hol?nomos
Lemos, Nivaldo A.;
Revista Brasileira de Ensino de Física , 2003, DOI: 10.1590/S0102-47442003000100003
Abstract: the treatment of nonholonomic constraints in lagrangian dynamics requires caution, since procedures valid for holonomic constraints do not always apply to nonholonomic constraints. we make a didactic review of the main properties of nonholonomic constraints, with emphasis on certain subtleties seldom or never discussed in texbooks on analytical mechanics. we also call attention to the little known voronec equations, which avoid lagrange multipliers.
Vínculos n?o-hol?nomos e equa??es de Voronec
Lemos, Nivaldo A.;
Revista Brasileira de Ensino de Física , 2003, DOI: 10.1590/S0102-47442003000300012
Abstract: is it allowed, in the context of the lagrange multiplier formalism, to assume that nonholonomic constraints are already in effect while setting up lagrange's function? this procedure, although successfully applied in a recent book to the problem of the rolling penny, is not valid in general, as we show by means of a counterexample. in many cases the use of nonholonomic constraints in the process of construction of the lagrangian is allowed, but the correct equations of motion are voronec's equations.
Três mitos sobre a "fun??o" delta de Dirac
Lemos, Nivaldo A.;
Revista Brasileira de Ensino de Física , 2010, DOI: 10.1590/S1806-11172010000400014
Abstract: three mathematical misconceptions concerning dirac's delta "function", recurring among physicists, are dispelled.
Intui??o física e generaliza??o das leis de Coulomb e de Biot-Savart para o caso dependente do tempo
Lemos, Nivaldo A.;
Revista Brasileira de Ensino de Física , 2005, DOI: 10.1590/S1806-11172005000300015
Abstract: we discuss the role played by physical intuition in expressing the electromagnetic field in terms of its sources in the general time-dependent case. among the lessons learned, the one that stands out is that it is dangerous to dissociate physical intuition from the mathematical description of the phenomena.
For?as de vínculo no caso hol?nomo
Lemos, Nivaldo A.;
Revista Brasileira de Ensino de Física , 2004, DOI: 10.1590/S0102-47442004000300014
Abstract: it is possible, by simple and direct means, to find the forces of constraint for holonomic systems employing lagrange's equations but without the use of the lagrange multiplier technique. the method is described in its generality, and its effectiveness is demonstrated with the help of a few typical examples.
Entrevista Com o Prof. Elenor Kunz
Nivaldo Antonio Nogueira David
Pensar a Prática , 2006, DOI: 19806183/rpp.v4i0.73
Entrevista com Acácia Zeneida Kuenzer
Nivaldo Antonio David Nogueira
Pensar a Prática , 2006, DOI: 19806183/rpp.v3i0.25
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