977 resultados para Ritos de passagem


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This paper presents the development and the main results for an interleaved boost rectifier operating as a special input power stage for a trolleybus type vehicle, allowing its feeding by alternate current (AC) or direct current (DC) distribution power systems. When feeding with two wires (single phase) alternate current distribution system, the converter accomplish active power factor correction, providing a relatively sinusoidal current with low total harmonic distortion (THD) and fully complying with IEC 61000-3-4 standards. In addition, a management control system promotes the required automatic operation changes for the proposed rectifier when the vehicle is changing from the DC distribution power system to the AC distribution power system and vice-versa, keeping its original electrical DC system characteristics for the adjustable speed driver sub-system. The main experimental results for a prototype rated at 150kW are presented, considering its application for a trolleybus with DC adjustable speed driver, demonstrating the proposed converter benefits and the possibility of AC feeding system for trolleybus type vehicle.

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Conselho Nacional de Desenvolvimento Cientifico e Tecnológico (CNPq)

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The present study aims to present and analyze the ruling of the Brazilian Supreme Court in ADPF 130 (Concentrated constitutional review action, Fundamental Precept Infringement, Argüição de Descumprimento de Preceito Fundamental), proposed by Partido Democrático Trabalhista (PDT), which contests the compatibility of statute 5.250/67 with the Federal Constitution of 1988. This work considers that the judicial ruling is different than the approach taken by the Legislative and Executive powers, arguing that there is, in the Judiciary, a peculiar way for ruling, surrounded by mysteries, rites, secrets, pomp and circunstances unintelligible to layman. To reach the proposed goal, Justice Carlos Brito´s report and opinion on ADPF 130 are analyzed. The choice of giving special attention to this opinion, which favors the declaration of unconstitutionality of the 5.250/67 statute, is justified in that it represents agreement with the allegation of disrespect to the constitutional text, as suggested by the Partido Democrático Trabalhista. The arguments put forth by the presiding Justice on his ruling will also be the object of consideration, as well as some possible consequences of the ruling.

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This work aims to evaluate a simple procedure for rainwater treatment by applying natural corn starch as primary coagulant for non-potable harvesting households. For this purpose, coagulation, flocculation and filtration were carried out in lab essays in samples of roof and floor catchment without first-flush. There were investigated corn starch dosages from 1 to 12 mg/L in pH values around 6,0. The apparent color and turbidity were measured and the results were statistically presented. Results pointed out reductions around 70 and 80% for apparent color and turbidity (residuals of 53Hu and 13Tu), respectively.

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In late 1950, the young Glauber Rocha, still without having directed any of his films, becomes the main cultural critic of the Jornal da Bahia in Salvador, Bahia. His film critic activity falls within the symbolic local disputes and his texts published become an active voice in the cultural field of Bahia. With a considerable apparatus of the press in his favor, the performance of the young critic Glauber Rocha allows to discuss: the role of public intellectual and media production and dissemination of ideas by the newspapers at the turn of the 1950s to the 1960s, a time of intense political, social and cultural changes in Brazil.

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his article is the result of an empirical research on the technology and market development resulting from the deployment of Digital TV in Brazil. Two aspects were selected to discuss the proposed question: the economic and political motivations that led to the digitization of broadcast TV in Brazil and the preliminary analysis of the effects on popularization of cyberculture in the Brazilian audiovisual scenario, changes can be observed in the production, dissemination and enjoyment of audiovisual content. For the development of the analysis the following theoretical and analytical tools were used: Theory Empirical Approach (Wolf, 1987), the Cultural Studies (Zallo, 1988; 1992), the digitalization media process (Lemos), the transition from television to cyberculture studies (Manovich, 2005) and (Fechine, 2013).

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O estudo sobre a folkcomunicação foi um dos principais legados de Luiz Beltrão em sua batalha para conscientizar os estudantes de jornalismo quanto à comunicação coletiva e a seus múltiplos desdobramentos. A atualidade da pesquisa desse pioneiro tem despertado o interesse de diversos grupos, não só no Brasil, mas também na América Latina e em países europeus. Se, por um lado, a rapidez da sociedade da informação possibilita a criação cotidiana de "um mundo novo" de informações, com a oferta cada vez mais veloz de conhecimento exige, por outro, que toda essa gama de dados que circulam pelas "infovias" comunicacionais faça parte do cotidiano das pessoas quase que em tempo real. Esse ultimato se insere no mundo do trabalho, do lazer, da economia, da política, da cultura em uma aparente cobrança da inserção do indivíduo nesse contexto. Esse tem sido um dos motes principais de articulação da Rede (GOBBI, 2006). A pesquisa que estamos realizando busca conhecer, mapear, sistematizar os dados que estão sendo disponibilizados na rede mundial sobre a Folkcomunicação, tratando mais especificamente da Folkcomunicação Icônica, Formato Funerário e Folkcomunicação cinética, Formato: Rito de passagem, conforme definiu o professor José Marques de Melo, em seu trabalho sobre Gêneros e formatos folkcomunicacionais: aproximação taxionômica. Utilizando pesquisa bibliográfica e documental, a análise objetiva verificar quais tipos estão presentes e se há outros formatos e quais são eles.

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The study of Folk Communication is a major legacy of Luiz Beltrão in his endeavor to educate journalism students about collective communication and its many ramifications. The topicality of this pioneering research has piqued the interest of many groups, not only in Brazil but also in Latin America and in European countries. This research seeks to know, map, and organize the data on Folk Communication available on the web, dealing more specifically with Iconic Folk Communication, Funeral Format, and Kinetics Folk Communication, Format: Rite of Passage, as defined by Professor José Marques de Melo in his investigation on Genres and Formats of Folk Communication: a taxonomic approach. Employing bibliographic and documentary research, the objective of this analysis is to verify which types are present, and whether there are other formats and identify them.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Ciência e Tecnologia de Materiais - FC

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

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)