613 resultados para Evasão de cientistas


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Relatório original, datado de 31 de Janeiro de 1859, do espólio do "Arquivo Histórico do LNEG"

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This work is part of the Graduate Program in Regional Development of the Federal Technological University of Paraná, Pato Branco campus, the research line Education and Development. The line of research concerns the Regionality and Development. In this study, investigate sought the implementation of the Field Education Curriculum Guidelines in the State of Paraná, whose locus, SEED / PR, the NRE / Pato Branco and Field Schools belonging to the NRE. The theme is to respond to the research problem, to identify the limits and challenges of the implementation process of Rural Education in rural schools in the Regional Center of Pato Branco Education. Exploratory research covers a time frame comprising the years 2002-2014 in order to identify and analyze the documents and perceptions of the subjects that guide the implementation of the field of education in the state of Paraná. The results show that the education field has not yet overcame the challenge of implementing public policies, in particular the field of Education Curriculum Guidelines. In general, the texts point to the concerned school education with the urban environment, in an attempt to solve the problems related to truancy, low school enrollment,flunk, among others. The reality of the field displays more serious such problems, however, is visible the development of proposals in an attempt to achieve definitive solutions to the issues of the field. However, a positive factor is the increase in continuing education courses, some offered by the Department of Education Field Regional Center of Education, others initiatives by the own teacher, which demonstrate the concern in improving their teaching practices, concomitant with need to change the identity of the field school. In this sense, we seek to deepen the discussion in order to demystify the idea that the subject field to be synonymous with poor education, poor quality. Documents such as the Field Operational Guidelines established by the CNE - National Education Council in 2002, the Curriculum Guidelines field developed by SEED - Secretary of State and Education in the State of Paraná in 2004 and established as a public policy in 2010 provide data that allow make a study of public policy and educational field context in order to understand the challenges for the development of an education as culture, ways of life, history, finally, the specificities of the subject field.

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A fixação biológica de dióxido de carbono por microalgas é considerada a melhor forma de fixar CO2. Dentre os microrganismos utilizados destaca-se Spirulina platensis devido às suas altas taxas de fixação de CO2 e variedade de aplicações da biomassa gerada. A aplicação de modelos e simulações pode auxiliar na previsão de custos e na escolha das condições ideais de cultivo. Este trabalho teve como objetivo etsabelecer um modelo cinético no qual a iluminância é o fator limitante para o crescimento da microalga Spirulina platensis. A fim de validar o modelo proposto foi utilizada a microalga S. platensis, cultivada em meio Zarrouk modificado (NaHCO3 1,0 g.L-1 ), em biorreator aberto tipo raceway de 200L, mantido a 30°C, sob iluminação natural. A concentração celular variou de 0,19 a 0,34 g.L-1 e a velocidade específica de crescimento celular obtida a partir da regressão exponencial das curvas de crescimento de cada período iluminado variou de 0,55 a 0,59 d-1 . O modelo proposto gerou dados estimados satisfatórios (r2 =0,97). De acordo com os dados obtidos 16,2% da biomassa é consumida durante o período não iluminado.

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Nowadays it is still difficult to perform an early and accurate diagnosis of dementia, therefore many research focus on the finding of new dementia biomarkers that can aid in that purpose. So scientists try to find a noninvasive, rapid, and relatively inexpensive procedures for early diagnosis purpose. Several studies demonstrated that the utilization of spectroscopic techniques, such as Fourier Transform Infrared Spectroscopy (FTIR) and Raman spectroscopy could be an useful and accurate procedure to diagnose dementia. As several biochemical mechanisms related to neurodegeneration and dementia can lead to changes in plasma components and others peripheral body fluids, blood-based samples and spectroscopic analyses can be used as a more simple and less invasive technique. This work is intended to confirm some of the hypotheses of previous studies in which FTIR was used in the study of plasma samples of possible patient with AD and respective controls and verify the reproducibility of this spectroscopic technique in the analysis of such samples. Through the spectroscopic analysis combined with multivariate analysis it is possible to discriminate controls and demented samples and identify key spectroscopic differences between these two groups of samples which allows the identification of metabolites altered in this disease. It can be concluded that there are three spectral regions, 3500-2700 cm -1, 1800-1400 cm-1 and 1200-900 cm-1 where it can be extracted relevant spectroscopic information. In the first region, the main conclusion that is possible to take is that there is an unbalance between the content of saturated and unsaturated lipids. In the 1800-1400 cm-1 region it is possible to see the presence of protein aggregates and the change in protein conformation for highly stable parallel β-sheet. The last region showed the presence of products of lipid peroxidation related to impairment of membranes, and nucleic acids oxidative damage. FTIR technique and the information gathered in this work can be used in the construction of classification models that may be used for the diagnosis of cognitive dysfunction.

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According to many scientists third industrial revolution has already began and this primarily means the transition to renewable energy sources. Energy requirements are increasing rapidly due to fast industrialization and the increased number of vehicles on the roads. Massive consumption of fossil fuels leads to environmental pollution, therefore, biofuels are offered as an alternative. For example, the application of biodiesel in diesel engines instead of diesel results in the proven reduction of harmful exhaust emissions. One of the most important technologies, which has been already explored at the commercial level, is the production of a liquid biofuel applicable in compression-ignition engines (or diesel engines), from biomass rich in fats and oils. This biofuel is generically referred as biodiesel, and consists essentially of a mixture of FAME's (fatty acid methyl esters). This current work describes modern approaches of biodiesel production from vegetable oil and subsequent analysis of produced biodiesel main characteristics such as density, acidity, iodine value and FAME content.

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The transformations economical, cultural and social that happen in world ambit they are associated to the intense progress and expansion of new technologies, forcing governments, people, companies and nations to the introduction of new patterns of behavior, forcing, in that way, to the continuous renewal of products and technological processes to maintain the competitiveness, so much among nations, as in the managerial world. In that matter, the technological innovation is recognized as basic factor of maintainable economical competitiveness, being the responsible for the breaking and/or improvement of the techniques and production processes, what presupposes the systematization varied institutional arrangements that they involve firms, interaction nets among companies, government agencies, universities, research institutes, laboratories of companies and scientists and engineers activities. Those arrangements, to the if they articulate with the educational system, with the industrial and managerial section and, also, with the financial institutions, they take the form that Freeman (1987) it coined of national system of innovation, promoted through public politics of CT&I, which seek to induce and to support innovative initiatives in the companies, as well as to establish demands and to prioritize vocations and regional potentialities. In that context of government support to the technological innovation interferes this study, that it looked for to know the reasons of the fragility innovative in the pharmaceutical industry of State of Pará in Brazil, pointed for PINTEC (2005), starting from the point of view of the businessmen of that section. For such, the qualitative approach was used - with interviews directing semi and the technique of the content analysis. The results of the research pointed that the fragilities innovative of the section links to the ignorance of the government support to the technological innovation on the part of the businessmen of the pharmaceutical industry of State of Pará in Brazil

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This thesis pursuits to contextualize the theoretical debate between the implementation of public education policy of the Federal Government focused in a distance learning and legal foundations for its enforcement, in order to raise questions and comments on the topic in question. Its importance is back to provide scientific input and can offer to the academy, particularly in the UFRN, and elements of society to question and rethink the complex relationship between the socio-economic and geographic access to higher education. It consists of a descriptive study on the institutionalization of distance education in UFRN as a mechanism for expanding access to higher education, for both, the research seeks to understand if the distance undergraduate courses offered by the UAB system and implemented at UFRN, promote expanding access to higher education, as it is during implementation that the rules, routines and social processes are converted from intentions to action. The discussion of this study lasted between two opposing views of Implementation models: Top-down and Bottom-up. It is worth noting that the documents PNE, PDE and programs and UAB MEETING reflect positively in improving the educational level of the population of the country It is a qualitative study, using the means Bibliographic, Document and Field Study, where they were performed 04 (four) in 2010 interviews with the management framework SEDIS / UAB in UFRN. The data were analyzed and addressed through techniques: Document Analysis and Content Analysis. The results show that the process of implementation of distance education at UFRN is in progress. According to our results, the research objective is achieved, but there was a need to rethink the conditions of the infrastructure of poles, the structure of the academic calendar, the management of the SEDIS UFRN, regarding the expansion of existing vacancies and the supply of new courses by the need for a redesign as the Secretariat's ability to hold the offerings of undergraduate courses offered by the Federal Government to be implemented in the institution. It was also found that levels of evasion still presents a challenge to the teaching model. Given the context, we concluded that the greatest contribution of UAB and consequently UFRN by distance learning for undergraduate courses (Bachelor in Mathematics, Physics, Chemistry, Geography and Biological Sciences, beyond the bachelor's degrees in Business and Public Administration ) is related to increasing the number of vacancies and accessibility of a population that was previously deprived of access to university

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Se a educação a distância representa, para muitos adultos, a possibilidade de (re)começar percursos académicos, por permitir, por exemplo, conciliar a vida pessoal e profissional, a educação a distância pode também traduzir desafios novos, diversos e específicos. De facto, as questões associadas ao abandono, evasão, adesão, permanência e persistência da população adulta no ensino superior têm estado em agendas políticas e nas preocupações de investigadores. No entanto, e considerando que este é um terreno que pode, e deve, ainda ser aprofundado, propomos uma reflexão teórica focalizada nos estilos de aprendizagem e no sentimento de auto-eficácia. Com esta reflexão pretendemos contribuir para o conhecimento de estratégias que promovam a permanência dos nossos aprendentes. É possível concluir-se que a utilização da teoria dos estilos de aprendizagem pode ajudar na construção de ambientes de aprendizagem mais adequados a cada aprendente e, com isso, reforçar o seu sentimento de auto-eficácia enquanto aprendentes em elearning.

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A temática de discussão neste trabalho é o Ensino de Ciências através da Investigação (ENCI) [inquiry-based science education (IBSE)] que utilisa das Tecnologias de Informação e Comunicação (TIC) para o ensino de Ciências (TICEC). Deste modo, esta pesquisa tem o objetivo de identificar as conceções sobre a Natureza da Ciência e Tecnologia, além de compreender as interações, relações e discussões de crianças e jovens ao realizarem atividades de investigação através das TIC, dentro de um contexto de ensino de Ciências ativo e colaborativo. Organizamos esta investigação em três partes com diferentes estudos para alcançar este objetivo. A primeira parte apresenta estudos, a partir de uma revisão sistemática, de como se ensina e aprende Ciências utilizando as TICEC. Realizamos ainda uma revisão sobre o papel da argumentação no ensino de Ciências e elaboramos um instrumento para analizar a argumentação dos participantes numa atividade investigativa baseada em TICs. A segunda parte deste trabalho caracteriza a metodologia utilizada e os elementos da investigação: aspetos metodológicos (pesquisa qualitativa e estudo de caso), cenário (espaço não-formal de ensino de ciências ativo e colaborativo), sujeitos (crianças e jovens provenientes de um meio económico vulnerável), instrumentos de coleta de dados (questionário, filmagem de entrevistas, focus group e observações) e análise de dados (sistema de categorias). Também é apresentada a elaboração de uma atividade de investigação de ensino de Ciências (AIEC) mediada por recursos digitais, denominada de Módulo Temático Virtual (MTV). A terceira parte caracteriza-se pela apresentação dos resultados. No primeiro momento identificamos as conceções dos participantes sobre a Natureza da Ciência (Nature of Science – NOS), Natureza da Tecnologia (Nature of Technology - NOT) e o papel dos cientistas na sociedade. O último estudo vem caracterizar as interações, relações e discussões desenvolvidas pelos participantes quando realizam AIEC através das TICEC. Verificamos que dentro de um contexto ativo de ensino de Ciências e mediado pelas TIC, os participantes tendem a manifestar quatro aspetos ou domínios: social, técnico, afetivo e cognitivo. Os quatros domínios referidos caracterizam os processos que surgem durante o desenvolvimento de atividades científicas num cenário específico complementar à educação tradicional e são indicadores de como planear e analisar o ensino de Ciências quando se utiliza recurso digitais.

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Both the end of the twentieth century and the beginning of the twenty-first century have been characterized as a period of major political, economic, social and cultural transformations. Two of the major consequences of the political-economical crisis of the end of last century are the restructuring of capitalist production, and the consolidation of neoliberalism as a worldwide phenomenon. This new world political-economical scenario has influenced, in a dialectic way, the contemporary urban development. In that sense, "new" spatial processes and new paradigms in both urban management and urban planning have gained shape. In this context of urban transformations, the central areas of western cities, also known as historic centers, are being increasingly (re)valued. Since the Second World War, the historic centers urban areas which have great infrastructure and symbolic relevance had been undergoing a process of evasion of population and activities, undeniably linked to the neglect of government authorities. However, in recent decades, the question of historic centers rehabilitation has acquired a growing interest, academically and in political agendas. The object of this dissertation is to focus on how the government of each Brazil and Portugal has dealt with the issue of historic center rehabilitation through programs of urban rehabilitation

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Mestrado em Contabilidade, Fiscalidade e Finanças Empresariais

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Dissertação de Mestrado, Ciências Biomédicas, Departamento de Ciências Biomédicas e Medicina, Universidade do Algarve, 2014

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Dissertação de Mestrado, Fiscalidade, Escola Superior de Gestão, Hotelaria e Turismo, Universidade do Algarve, 2016

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A espécie é uma das mais comuns no Pantanal, mas nem por isso dispensa estudos e atenção dos cientistas. Sua presença como podador ajuda a moldar a paisagem.

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O Encontro de Iniciação Científica e Pós-graduandos visa a formação e o incentivo à vocação científica e profissional dos bolsistas. Nesses dois dias, são estimuladas as habilidades de comunicação oral e escrita dos estudantes, permitindo debater junto à equipe de pesquisa os conhecimentos científicos e tecnológicos gerados no âmbito dos projetos. Proporciona-se, também, a avaliação das metodologias utilizadas e a qualidade dos resultados obtidos, aproximando o aluno do meio acadêmico com situações concretas de pesquisa e inovação. Como consequência, o estudante estará mais preparado para se submeter aos passos seguintes à graduação, como especializações, mestrados, doutorados e, principalmente, à vida profissional. Para a Embrapa também, não menos importante, é a contribuição efetiva desses jovens cientistas nos projetos de pesquisa de nossa programação. A participação e o interesse por parte dos estudantes, estagiários e bolsistas, nestes eventos, têm aumentado nos últimos anos. Isto só foi possível graças à ampliação do trabalho em rede com as diversas instituições de ensino, inseridas agora nas novas figuras de Arranjos e Portfólios de Pesquisa, além de projetos externos ao Sistema Embrapa de gestão ? SEG. Neste ano estão sendo apresentados 70 trabalhos, na forma oral ou pôster. Importante ressaltar, também, o forte apoio de instituições como a FAPERGS e o CNPq, que têm aportado enormes recursos em bolsas para formação e indução de novos pesquisadores no Brasil. A Embrapa Uva e Vinho tem a satisfação de realizar mais uma edição desse encontro, agradecendo o empenho e dedicação de todos os participantes e da Comissão Organizadora.