1000 resultados para pzt poder


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

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Lead zirconate titanate, with Zr/Ti ratio of 53/47 was prepared by the polymeric precursor method. It was investigated the barium (II) modification at 0.0, 0.2, 0.4 and 0.6 mol% in substitution to the lead (II) cation in A site of perovskite structure. The powder samples were characterized by XRD and the diffraction patterns were used to Rietveld refinement. The percentages of tetragonal and rhombohedral phases and a systematic study of the effect of barium (II) on the morphology and the dielectric properties of PZT were carried out. The results showed that the tetragonal phase is favored and the ceramic density is improved with the barium (II) insertion. The Curie temperature (Tc) is increased besides the slight reduction of dielectric constant (Kc).

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Comunicação - FAAC

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Pós-graduação em Engenharia Mecânica - FEIS

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No presente estudo, destacamos como a estrutura da poesia trágica em partes cantadas e dialogadas resulta num grande espetáculo dominado pela palavra. Nos cantos corais e nos cantos de ator, os estados emocionais são marcados pelo viés da tradição do dialeto dórico. Nos diálogos, o ritmo próximo da fala quotidiana, em dialeto ático, acelera os acontecimentos em cena, põe em ação e movimenta o que Aristóteles depois vai chamar de “ação”. O resultado da mescla de tradição e novidade, de canto e fala, de dança e gestos, é um espetáculo contendo mito e “realidade”, poesia e retórica, entre outras dicotomias, em que o poder da linguagem é colocado em cena. Na tragédia, então, a palavra em todos os seus modos de expressão é o espetáculo a ser visto e ouvido. Assim, a tragédia grega insere-se numa longa tradição iniciada pela poesia oral homérica e anuncia o estabelecimento da filosofia.

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Pós-graduação em História - FCHS

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Pós-graduação em Ciências Sociais - FCLAR

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In recent years, the concept of art education has been changing substantially the artistic and cultural education in the Brazilian educational system, particularly in relation to the formation of a critical awareness and practice of citizenship. In this process, the Community Public Relations and Public Communication excel in fostering alliances between government and community. Based on literature review and authors debates, such as Geertz, Santos, White, Freire, Araujo, Barbosa, Kunsch e Peruzzo. Besides the analysis of important materials, official documents and Brazilian projects involving art, culture and education, such as Research-Action Report 2013, the National Plan for Culture, the National Education Plan and the Municipal Act 6119; this paper seeks to explicit this affirmation, assuming the social transformation aiming a full citizenship, as a motivational factor. In this paper we also present a plan that includes a project in art education for the Stable Dance Company and the public elementary schools in Bauru SP

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As a literature’s teacher, I’ve performed a search during three years devoted to the reader’s formation. Through this research, which resulted in my master's dissertation (FERREIRA, 2003), I’ve tried to diagnose, from 1998 to 2000, which were the previous concepts of young people belonging to prestigious classes that have led them to the rejection of reading. I’ve choose, based on the diagnosis, to develop a work guided by the reception’s aesthetics that aloud them to review both of these concepts, to expand the horizons of their expectations.

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In the last two or three decades has become common the debate on the harmful effects produced by trade and use of illicit substances in Brazil. The "drug problem" as it became known worldwide in official and media discourses, has become, if not the only, at least the most important determinant of a series of social ills that affect both the rich countries (classified as consumers), and the poor countries (the producers and exporters of these "evil substances"). This situation that today is extremely pernicious, may be better understood through some elements of the story of its constitution. In this sense, we draw a succinct history of drug prohibition worldwide and we use the Foucauldian concept of biopower and the concept of “death policy” designed by André Saldanha Costa to comment briefly on the "drug problem" in Brazil. In this initial approach, we can affirm the importance of these two concepts for the understanding of the “depoliticized life" of drug traffickers as well as the governmental policies, both legal and health focused on this issue.

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Nowadays, the current work perspective is characterized by a management economy in which the accounting and financial considerations overlap the human and social considerations. Therefore, there is a creation of a social imaginary dominated by a capitalist and utilitarist logic. With this in mind, we intend, in this theoretical-reflexive study, learn the power resonances and managerialist ideology for the included subjects in the hypermodern organizations. This way, this research was constructed by the light of Psichosociology. The reading through these approaches emphasizes the imaginary dimension, intersubjective and group of the organizations, contributing to the understanding of job relations and worker's mental health.

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This article aims at developing the so-called ontopolitics as G. Deleuze s innovative contribution to contemporary political philosophy. This objective will lead us to inspect the concept of power that Deleuze borrowed from Foucault and extended in order to assign to it an ontological adequacy. The concept of power opens access to another important element of the Deleuzean political philosophy, that is, the study of the historical diagrams of the power in the so-called discipline and control societies. With the combined dynamical diagram of both, we become aware of the portrait Deleuze draws for the democracy in contemporary societies. Digging into the Deleuzean ontopolitics, we will devote ourselves to the concepts of majority, minority and minor-becoming. It is in this point that the meeting between Deleuze s ontoplitics and Ch. Sanders Peirce s mathematical ontology becomes sound. It happens that Deleuze s ontopolitical concepts, besides their bond to an ontology of the power, receive also a mathematical treatment related to certain arithmetical (denumerable and nondenumerable) and geometrical notions (lines). The majorities and minorities are denumerable sets which are crossed by nondenumerable becomings. This step done, we will reach the stand point of the present paper, where we carry out initial approach with regard to an image for the concepts of majority and minority on the basis of Peirce s theory of collections and multitudes, mostly envisaging the mathematical ontology included in it. Accordingly, the main operation to be accomplished is that the Deleuzean distinction between the denumerable majorities/minorities and the nondenumerable mino-becoming may be mapped out in terms of discrete collections called enumerable, denumerable and abnumerable or postnumerable, in compliance with Peirce s terminology.