290 resultados para Dispositivo emissor de luz


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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Imunossensor impedimétrico e dispositivo compreendendo o mesmo. O presente pedido de patente revela um dispositivo de detecção impedimétrico voltado a áreas críticas de contaminação microbiana, compreendendo um eletrodo construído a partir de monocamadas autoorganizadas e proteína a imobilizadas na superfície de seu transdutor. A avaliação da contaminação microbiana é efetuada por meio da sucção da atmosfera interna do ambiente, interação Ag-Ac e detecção por impedância eletroquímica.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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This paper presents some results of the investigation on the Mathematical Education Centre (CEM), a group of mathematics teachers’ educators in São Paulo, Brazil, acting mainly between 1984 and 1997. The essay, marked by an effort to constitute the identity of the CEM based on Foucault, assumes that the identity constitution process is not about what CEM is or was, but mainly about a set of possibilities of apprehending it from its historically contextualized strategies and initiatives. In this Foucauldian reading, which brings about concepts such as "strategic device", "resistance" and "power relations", the CEM constitution appears while it creates conditions for the constitution of Brazilian modern mathematical education.

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In this paper, we analyze the educational importance of teaching Physics in the early grades of elementary school from a teaching experience with students of 5th grade, using five experiments on electricity and magnetism. The theoretical framework used was the socio-historical psychology, especially Vigotski's studies on concept formation. It can be stated that the teaching of Physics and the use of experimental activities in the early grades cannot be simply associated to the teaching of certain scientific concepts, but should be explored bearing in mind the child's development.

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Nowadays questions involving the use of social and cult language approach at the school has produced discussions between teachers, thus the use of the linguistics registers different of that considered correct aren’t accept or analyzed in the context of the classroom, although the national curriculum framework recommend it. So, there are many difficulties of socialization by the students principally that ones who come from the surrounding regions, if they use the linguistics approach differently of the accepted as a model. The objective of this paper is to analyze those questions, involving variation and prejudice in the classroom context, from the Sociolinguistics point of view how this science has been applied in the classroom context, considering the curriculum proposals of 1992 and the national curriculum .

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Este artigo tem o propósito de examinar os desafios e oportunidades relacionados à implementação de sistemas de gestão ambiental baseados na Norma ISO 14001:2004 nas Instituições de Ensino Superior e como elas podem se adequar aos requisitos para possuir um sistema de gestão ambiental (SGA). O estudo envolve análises sobre as implicações da adoção de sistemas de gestão ambiental por universidades e sobre os aspectos relevantes na adoção de SGAs com base na Norma ISO 14001, como barreiras, benefícios, motivações, práticas e fatores críticos de sucesso. Luzes são lançadas, assim, a um tema de crescente importância (sistemas de gestão ambiental), com foco em objeto analítico ainda pouco analisado do ponto de vista ambiental (Instituições de Ensino Superior).

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The main article aim was to investigate the collecting system of a dissolved air flotation (DAF) unit in pilot scale. Referring to the collecting system position, two options were analyzed: (i) top manifold and (ii) bottom manifold, pipes or plates. Qualitative and quantitative essays were performed, as image and stimulusresponse tests, respectively. The results of the essays standardized were adjusted by N-continuous stirred tank reactors in series and theoretical models of dispersion (low and high). The bottom manifold (plates with orifices) was more appropriate. The results pointed out that the N-continuous stirred tank reactors in series model was more adequate to describe the hydrodynamic behavior of the DAF unit.

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Pós-graduação em Psicologia - FCLAS

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Pós-graduação em Agronomia (Produção Vegetal) - FCAV