Validação dos parâmetros aeróbio e anaeróbio a partir de protocolo não invasivo aplicado ao exercício resistido - supino reto

The purpose of this study was to investigate the validity of critical force test from maximal lactate steady state (MLSS) during resistance test using straight bench press. Five healthy male volunteers aged (22.6 ± 2.88 years), weight (76.3 ± 11.49 kg) e height (182.6 ± 7.54cm), trained in resistance exercise, and performed four diferent test to determine: one maximal effort (1RM), critical force using the critical power model (force vs 1/time limit - 20, 25 and 30% 1RM). The CF was the linear coefficient and the anaerobic impulse capacity (CIA) was the angular. MLSS was determined using loads of 80, 90, 100 and 110% of critical force. Blood lactate samples were abtained at each 300sec between each stage of total 1200sec. Maximal 30s test (M30) was accomplished with load of 25% of body weight in SBP. The results showed that the 1 RM was 79.4 Kgf (± 16.98), CF 10.1N (± 2.25), CIA 1756.82 N.s (± 546.96) and the R² 0.984 (± 0,02). The MLSS occurs at 100% CF load. The lactate concentration at the MLSS was 2.2 mmol/L (± 0.77). Significant correlation was observed between MLSS and CF on SBP (r = 0.88 p = 0.05). In M30 the minimum, mean and peak power were (25.0 ± 4.9, 28.0 ± 4.9, and 30.0 ± 4.6 kgf.rps, respectively). The fatigue index was 18.0% (± 6,8). The M30 was significantly correlated with Ppeak and Pmean (r = 0.98 for both, p = 0.003). The CF means has been validated to predict the resistance training and the CIA show to be a representative anaerobic parameter in straight bench press.

Transmissão de potência em corrente contínua e em corrente alternada: estudo comparativo

This paper presents a comparative study based on literature and examples in the literature, the two main technologies for the transmission of electricity at high voltage: alternate current transmission and direct current transmission. Inside the direct current transmission will be shown two technologies currently employed, transmission by current source and transmission by voltage source, contributing to a better understanding of them. The ultimate goal is to provide a text for consultation to identify key characteristics that influence the choice of future transmission lines

Mídia e transmídia: identidades das minorias e mercado cultural

Cette recherche là veut analyser et discuter les pratiques discursives qui promeuvent et constriusent des modèles de subjectivité dans la société dês médias. Le corpus de la recherche est la série de TV Glee, produite et véhiculée par la chaîne Fox, dont on observe la proposition d’une identité des minorités pour les jeunes gens dans l’ère de la mondialisation, aussi que le mouvement du marché culturel promu par le discours de la série. Enfin, sont pensés les transformations récentes dans contexte médiatique et le changement dans le façon comme les effets de sens sont véhiculés dans la société. Pour cela, on utilise les constributions théoriques de l”Analyse du Discours Française, fondée sur le travail de Michel Pêcheux et Michel Foucault, et les réflexions de Jenkins (2009) sur la convergence médiathique et le phénomène transmédia

Qual o papel da mídia na aprendizagem e desenvolvimento da criança de educação fundamental I, em idade de alfabetização: ela forma, informa, dificulta, diverte ou deseduca?

Este trabalho de conclusão de curso tem como objetivo analisar a mídia televisiva, no que diz respeito a seus interesses e programações, levando em consideração a conseqüente relação conflituosa entre esta e as crianças brasileiras, uma vez que a mídia não oferece programas de qualidade que respeitem a diversidade cultural. O trabalho analisa os conteúdos dos programas oferecidos pela mídia e compara-os com o que se propõem a Convenção da ONU realizada em 1989 Sobre os Diretos da Criança, no que diz respeito a mídia em geral. A partir de base teórica busca refletir sobre o impacto das mensagens dos programas de televisão na mente da criança e consequentemente afetando seu desenvolvimento cognitivo, moral e emocional. Sendo que percorrendo esse caminho de análise, procura-se mostrar uma possível reflexão e mudança através da educação para mídia e participação na mesma, envolvendo pais, professores, as políticas públicas e as próprias crianças.

A influência da mídia para crianças de educação infantil

It is through the media that information is transmitted, both educational or noneducational. Among the various forms of media there’s television, as one of the means of communication most used since the 50’s. Most of the time, television displays images and words to reach the target audience, something that is done in a simple, but often appealing way. Media is present in our daily lives and takes a significant educational role in the constitution of subjects. That is to say, the persuasive power of television is amazing, in order to influence children in their habits and their ways of thinking and acting. It was intended to discuss in this paper the influence of media on kindergarten children. For this, the historic rescue of television in Brazil was presented and also its trajectory to the present day and the power of media on children in preschool

Cinema Zero na Cidade Média

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Gêneros do discurso, ciência e mídia: a divulgação científica em questão

This work’s main purpose is to research how the scientific speech is outlined on the Revista Língua Portuguesa in statements made by linguists. Statements issued in the previously mentioned magazine have been analyzed. In order to achieve the proposal, the research was based on the following questions: how both the scientific and the scientific divulgation speeches are formed in the magazine, and whether the opinion texts written by scholars and researchers in the linguistic field identify themselves with opinion articles, scientific articles or scientific divulgation texts. Those questions were discussed from the theoretical-methodological bakhtinian perspective, taking the notion of dialogism, the human activity sphere, genres of discourse and style as conceptual elements. It has been detected that there is a complexity in the construction of the genres in the magazine, always taking into account the journalistic and scientific spheres of circulation. The analyzed statements presented themselves as a confluence of many genres’ characteristics, showing a point of view, a scientific subject, a researcher-author and a language adjustment to the magazine reader, making it more accessible. The analysis showed that the discussed statements resemble opinion articles, scientific articles, and reviews, besides being scientific divulgation at the same time

Aprendizagem do conteúdo esportivo de crianças do ensino fundamental: mídia ou escola

Sabe-se que crianças adquirem conhecimentos sobre o esporte, antes mesmo de ingressarem na escola ou de receberem informações sobre esse conteúdo de maneira sistematizada, em aulas de Educação Física. Este estudo analisou qual visão os alunos do ensino fundamental têm sobre o esporte e discutiu qual foi o meio responsável por esse conhecimento, a mídia ou a escola. Foram entrevistadas, através de um roteiro previamente elaborado, crianças da 3º e da 6º série do ensino fundamental de uma mesma escola. Os resultados foram apresentados de modo comparativo entre essas diferentes séries a fim de se obter uma discussão sobre a influência da mídia e da escola sobre o aprendizado do conteúdo esportivo.

Mudanças climáticas: o discurso da mídia sobre o aquecimento global

This research is aimed at discussing the ways in which social agents influence global warming, analyzing the discourse of social actors involved in the debate on climate change, since there is a wide divergence in the scientific community about how man is able to modify the climate on a global scale. In fact the debate that permeates the issues beyond the limits of science and enter into a political-economic framework that takes extraordinary proportions. This emphasis can be very unscientific in the fundamental design concepts, or even creating a trivialization of the media. The main way to convey these concepts is to disclose them in the media, but the media has enormous power to transform the concepts and often manipulate the news by creating a common sense goes against the interests of the scientific community. Thus was conducted extensive research in major newspapers and magazines that move in the country. We surveyed the first two papers which were: “Folha de S. Paulo” and “O Estado de S. Paulo”, during the period from January 2000 to December 2008, totaling 3285 units for the newspaper Folha and 2555 for the newspaper Estadão. Subsequently a survey was made of data published in two journals that move at the national level, and these are the magazines VEJA and ÉPOCA for the same period. By performing these steps, it was concluded that several factors involving the media and climate change, such as topic relevance, types of approaches, perspectives of analysis, the staff development, supplies, among other factors of utmost importance for building news. As a result we can say that the media in fulfilling its role of mediator scientific, disclosing only a vision that permeates the scientific debate. The newspaper media, especially newspapers, has an informative and instantaneous. Often this preoccupation...(Complete abstract, click electronic access below)

Localização de descargas parciais em transformadores de potência imersos em óleo mineral por meio de cápsulas piezelétricas de baixo custo e sistemas inteligentes

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

O modelo atômico de Bohr e as abordagens para seu ensino na escola média

The teaching of modern and contemporary Physics subjects in high school is indispensable and it was already justified by several researchers. Among the subjects which must be taught, there is, for instance, Bohr atomics model. However, as it was noticed in literature review, many didactic materials do not deal with this model adequately, since that they do not take into account Bohr ideas, which involved Planck studies on black-body radiation, Einsten theory for photoelectric effect, Rutherford experiences and atomics model and the empiric results upon the spectrums of chemical elements emission. From that, it is extremely important teaching through approaches which potentialize the learning of the model proposed by Niels Bohr. On the other hand, teachers from high schools cannot have clearness about which approaches can be applied for teaching the mentioned model. Thus, it is presented some possibilities for teaching Bohr atomics model, with examples and justifications for the use of each one. Special treatment was attributed to the teaching from Science History and Philosophy, from the reading of scientific diffusion and original scientific texts, from analogies, from comic strips and from computer simulations.

Coesão e coerência: discursos da linguística e da mídia

Esse trabalho analisa as refrações do discurso pedagógico que, em diálogo com outros discursos, como os da mídia e da linguística, reflete-os, além de ressignificá-los. Mais especificamente, trata-se da ressignificação que os discursos pedagógicos, postos em diálogo com os discursos da mídia, fazem de conceitos da lingüística; para essa análise tem-se como foco os conceitos de coesão e coerência, esses conceitos são critérios de avaliação dos textos. Quando retirados de suas enunciações e reutilizados nos dias de hoje, esses conceitos são ressignificados de forma a se adaptarem a novas enunciações. Como abordagem metodológica para a realização deste trabalho, tem-se uma análise qualitativa dialógica do livro de Thaís Nicoleti de Camargo, Redação linha a linha (2010) (corpus desse trabalho, que representa o discurso pedagógico). No diálogo proposto sobre os conceitos de coesão e coerência textuais pode-se perceber a ressignificação causada pela nova enunciação em que esses enunciados são reutilizados. Esse trabalho, por valer-se da análise do discurso bakhtiniana, estará sempre voltado ao conceito de diálogo, colocando os discursos em contato; partindo desse ponto, busca-se entender quais discursos dialogam com a produção do discurso pedagógico no livro analisado. Pode-se perceber, na análise dos conceitos de coesão e coerência textuais, que alguns discursos que dialogam com esses enunciados são os discursos de normatização e padronização. É possível dizer que a enunciação em que esses enunciados se produzem remete aos discursos do capitalismo, dos vestibulares, da atribuição de notas

O conflito ideológico no discurso sobre a maconha: uma abordagem dialógica de matérias impressas veiculadas na mídia brasileira

According to data published on the World Drug Report 2012 by Unodc - United Nations Office on Drugs and Crime -, the world consumes nowadays the same amount of illicit drugs that it has always consumed. Contrary to this stable consumption, discussions surrounding the issue of drugs have intensified. The greatest controversies and the largest repercussion in the Brazilian media relate to marijuana use. This paper was developed in the context of polemic issues and its general goal is to analyze the conflict of ideologies present in the discourses about drugs on printed articles released by the Brazilian media, represented here by the magazines Veja, Carta Capital and Galileu. This study is carried out based on a dialogic approach, supported by the Bakhtinian researches on discourse

Elementos de manutenção de transformadores de potência

The intended purpose of this paper is to present the main commissioning tests for power transformers and the most used techniques in industrial segment, it is also discussed your results and consequences in the equipment’s normal operation. Also in this text, it is given specific information concerning a maintenance plan compatible to power transformers, with elements of preventive and predictive maintenance, exposing essential components, tests and the regulations current, showing how analyze and interpreted the results from this maintenance resources. Also in this paper is submitted the economic impact of damage to transformers and how the correct maintenance method can minimize them. The objective of this text is demonstrate the importance of the equipment and the benefits of proper maintenance, much of in financial terms as in electric system reliability