1000 resultados para Gauge, Teoria de


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This study analyzes the translation process into English of neologisms and expressions in the works written by the anthropologist Darcy Ribeiro and in their respective translations, made by Betty J. Meggers and Gregory Rabassa. Our research project draws on Corpus-Based Translation Studies (BAKER, 1995, 1996, 2000; CAMARGO, 2007), Corpus Linguistics (BERBER SARDINHA, 2004) and on some concepts of Terminology (ALVES, 1999; BARROS, 2004; BOULANGER, 1989; CABRÉ, 1993, 1999). Results show that terms do not present similarities within the language related to Brazilian Anthropology, being necessary for the author to look up alternative terminology and to create new concepts that can be used by other anthropologists. The translation of words and expressions developed by the author reflects lexical variation due to the options chosen by the respective translators for the target language. These tendencies may be found in Ribeiro’s translated texts, indicating the difficulty to conceptualize the anthropological Brazilian universe in English.

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The flow of Ricci is an analytical tool, and a similar equation for heat geometry, a diffusive process which acts on a variety of metrics Riemannian and thus can be used in mathematics to understand the topology of varieties and also in the study geometric theories. Thus, the Ricci curvature plays an important role in the General Theory of Relativity, characterized as a geometric theory, which is the dominant term in the Einstein field equations. The present work has as main objectives to develop and apply Ricci flow techniques to general relativity, in this case, a three-dimensional asymptotically flat Riemannian metric as a set of initial data for Einstein equations and establish relations and comparisons between them.

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This paper aims to use the theoretical framework developed by Hyman P. Minsky for understanding the concept of financial fragility observed in the capitalist system. It is intended to clarify the concept of intrinsic instability to which capitalism is subject, which is responsible for generating more economic cycles - periods of prosperity and crashes that affect global economies - particularly the one initiated in the United States in 2008. Thus, we made theoretical analysis of the theory of economic cycles and financial instability beyond historical reviews on the biggest financial crisis since the Great Depression

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This paper is result of an analysis of the Brave New World by Aldous Huxley, made based on the perspective of discursive semiotics. For both, the elements of the generative course of meaning were applied, particularly those in works of Barros (2001) and Fiorin (2000). In view of that each of the three levels (elementary, narrative and discourse) of semiotics approach are considered capable of independent descriptions, we sought through the (re) construction of meaning of specific parts of the work and also the relationship of its thematic route with the time it was composed, found that, as a result of this work, the relationships between fiction and reality and thus the relevance of the work of Aldous Huxley

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We have studied the physical content of the following models: Maxwell, Proca, Self-Dual and Maxwell-Chern-Simons. One method we have used is the decomposition in the so called helicity variables, which can be done in the Lagrangian formalism. It leads to the correct counting of degrees of freedom without choosing a gauge condition. The method separates the propagating modes from the non-propagating ones. The Hamiltonian of the MCS and the AD is calculated. The second method used here is the analysis of the sign of the imaginary part of the residues of the two-point amplitude of the theory, showing that the models analyzed are free of ghosts. We also carry the dimensional reduction of the Maxwell-Chern-Simons and Self-Dual models from D = 2+1 to D = 1 + 1 dimensions. Next, we show that the dimensional reduction of those equivalent models also leads to equivalent models in D=1+1. Even more interesting is the fact, demonstrated here, that those reduced models can also be connected via gauge embedding. So the gauge embedding of the Self-Dual model into the Maxwell-Chern-Simons theory is preserved by the dimensional reduction

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Pós-graduação em Matemática Universitária - IGCE

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Pós-graduação em Ciências Sociais - FFC