972 resultados para Betts, James
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em História - FCHS
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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The James-Stein estimator is a biased shrinkage estimator with uniformly smaller risk than the risk of the sample mean estimator for the mean of multivariate normal distribution, except in the one-dimensional or two-dimensional cases. In this work we have used more heuristic arguments and intensified the geometric treatment of the theory of James-Stein estimator. New type James-Stein shrinking estimators are proposed and the Mahalanobis metric used to address the James-Stein estimator. . To evaluate the performance of the estimator proposed, in relation to the sample mean estimator, we used the computer simulation by the Monte Carlo method by calculating the mean square error. The result indicates that the new estimator has better performance relative to the sample mean estimator.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Este artigo pretende apresentar, de modo preliminar, uma exposição da teoria de James Buchanan sobre os temas relacionados a ação coletiva e as regras do processo decisorio no âmbito do Estado.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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This work is part of a research project on the role of translations of African-American literature in Brazil and their relation to issues of identity, discourse and aesthetics. It analyzes the translation, by Affonso Blacheyre, of Giovanni's room (1956), by James Baldwin, which was published in 1967 in Brazil. Baldwin is revered for his role in the Civil Rights Movement, having produced works that portray the contradictions of a democratic, but, at the same time, racist society. Giovanni's room was first rejected by his publisher for addressing homosexuality. The text displayed on the book flaps of the translation praises Baldwin's "work with language", in contrast to his anti-racism in other works. The praise of aesthetics of Giovanni's room is noteworthy, in contrast with the absence of any remarks on its critique of the marginalization of homosexuality. The focus on the aesthetics of the work corresponded to characters speaking a more formal register in the translation. Discourses on identity strengthening were less apparent in the 60s in Brazil in comparison to nowadays. The emphasis on aesthetics represented a seemingly "non-political" gesture that made it less shocking in the context of military dictatorship prevalent in the country at the time.
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This paper aims an epistemologically analysis of the attempt of James Prescott Joule to replace the steam engine by the electric one. In this historical analysis, we use the epistemological categories: style of thinking, collective thinking, intercollective circulation of ideas and practices,Joule and other technicians in Machester received in that time financial incentives from governments and industry to replace the steam engine by the electric one, since it was in Manchester a culture of the technique of the accuracy and precision in which Joule was immersed, which allowed us to initially identify the styles of techniques thinking and experimental efficiency. However, Joule could not replace the steam engine by the electric; and the awareness of the problems faced by him, in the attempt to make such a substitution, led him to seek, through an intercollective circulation of ideas and practices, such as the studies of Faraday and Jacobi, a change of direction in his researches. According to our analysis, what happened was a change of style from a technical to a scientific thinking. In this sense, Joule began to investigate issues of a scientific nature, as the Joule’s effect and the mechanical equivalent of heat, which contributed significantly to the establishment of the principle of conservation of energy. We present here the contributions of this epistemological analysis to the discussion of questions of the nature of science in the basic education and for the training of physics teachers.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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The James Sisters Papers consist of personal correspondence between the sisters and their parents while they attended Winthrop and other papers, memorabilia, and photographs relating to their college and professional lives.
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The James Pinckney Kinard Papers consist of family history charts of the Kinard family and related Kuhn and Summer families, and a Kinard family history, personal correspondence including letters to and from his wife Lee Wicker Kinard (1873-1963), their daughter Nelle Kinard, and other family members, business correspondence, financial papers, literary manuscripts, scrapbooks, and photographs pertaining to Kinard’s student days at the Citadel, his personal and family affairs, his teaching career, his presidency of Winthrop, and his efforts to get his literary manuscripts published. This collection consists primarily of correspondence and offers an informative insight into the personal lives and family affairs of Dr. Kinard and his wife, Mrs. Lee Wicker Kinard. The correspondence generally deals with Dr. Kinard’s struggle against the South Carolina legislature’s cuts in educational appropriations for Winthrop during the Depression; and his varied activities on behalf of Winthrop as President Emeritus. The collection also includes several unpublished manuscripts ranging from his student days at the Citadel to his later life. Areas of research would perhaps include, among others, biographical information on Dr. Kinard and social history during the Depression.
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Dragonflies are beautiful animals, important predators in and around aquatic environments, and often good indicators of ecosystem health. Stimulated by digital photography, close-focusing binoculars, and many new regional field guides, the study of dragonflies has exploded in the last ten years. Most importantly, the Internet has connected beginners with experts; observers from everywhere now share their experiences. Here is a book that puts it all on paper.