1,721,197 research outputs found
NEWTON DA COSTA E A ESCOLA DE CURITIBA
Full text linkEste artigo pretende apresentar o início das publicações de Newton da Costa fora do Brasil. Dois matemáticos desempenharam um papel importante neste início: Marcel Guillaume da Universidade de Clermont-Ferrand e Paulo Dedecker das Universidades de Lille e Liège. Ao mesmo tempo lembramos o papel desempenhado por Newton da Costa e Jayme Machado Cardoso no desenvolvimento como chamamos aqui a Escola de Curitiba. A Lógica paraconsistente foi iniciada nesta escola sob a influência de Newton da Costa. Como mais uma contribuição desta Escola mencionamos o desenvolvimento da teoria dos quase-grupos; o nome de Jayme Machado Cardoso foi dado pelo Sade para alguns objetos particulares que são agora chamados de quase-grupos de Cardoso. Abstract: This paper intends to report on the beginning of the publications of Newton da Costa outside Brazil. Two mathematicians played an important role in this beginning: Marcel Guillaume from the University of Clermont-Ferrand and Paul Dedecker from the Universities of Lille and Liège. At the same time we recall the role played by Newton da Costa and Jayme Machado Cardoso in the development of what we call here the School of Curitiba [Escola de Curitiba]. Paraconsistent logic was initiated in this school under the influence of Newton da Costa. As another contribution of this school we mention the development of the theory of quasigroups; Jayme Machado Cardoso’s name has been given, by Sade, to some particular objects which are now called Cardoso quasigroups.Keywords: School of Curitiba. Paraconsistent logic. Theory of quasigroups. Cardoso quasigroups. Irrationality. CRAS (Comptes Rendus de l’Académie des Sciences de Paris)
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Newton da Costa and the school of Curitiba
No full textThis paper intends to report on the beginning of the publications of Newton da Costa outside Brazil. Two mathematicians played an important role in this beginning: Marcel Guillaume from the University of Clermont-Ferrand and Paul Dedecker from the Universities of Lille and Liège. At the same time we recall the role played by Newton da Costa and Jayme Machado Cardoso in the development of what we call here the School of Curitiba [Escola de Curitiba]. Paraconsistent logic was initiated in this school under the influence of Newton da Costa. As another contribution of this school we mention the development of the theory of quasigroups; Jayme Machado Cardoso's name has been given, by Sade, to some particular objects which are now called Cardoso quasigroups
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Newton da Costa: O Homem, o Lógico e o Filósofo
Full text linkO professor Newton da Costa - como é carinhosamente chamado por seus alunos - é, sem dúvida, o lógico mais importante do século XX em língua portuguesa, destacando-se também como filósofo da lógica, da matemática e teórico do método científico. Elaborou valiosas contribuições a diversos campos do saber teórico e filosófico. Juntamente com inúmeros outros estudiosos brasileiros e estrangeiros, Newton da Costa fez escola, a qual se usa nominar "Escola de da Costa". Seus membros, alguns dos quais gozam de reputação internacional, nele tiveram e têm seu professor, mentor, inspirador e colaborador.
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Newton da Costa é um dos grandes responsáveis pelo Brasil ser, hoje, relevante em lógica em nível mundial. Ele é o fundador da lógica matemática no Brasil, desenvolvera sua cultura lógica de modo autóctone e autodidata, aprendera lógica diretamente na melhor literatura internacional sobre o assunto em sua juventude. Seu grande talento permitiu-lhe criar a lógica paraconsistente de modo independente de StanisÅ‚aw JaÅ›kowski, em 1963, com a publicação de Sistemas Formais Inconsistentes, sua tese de cátedra apresentada, defendida e aprovada na Universidade do Paraná, no ano seguinte. Mais tarde, a partir de 1986, Newton da Costa formula e desenvolve sua teoria da quase-verdade, a qual, em certo sentido, generaliza a teoria da verdade de Tarski, constituindo-se um modelo alternativo para conceber a noção de progresso em ciência, ao mesmo tempo em que oferece o ferramental teórico para que se codifique claramente os mais diversos tipos de inferência no âmbito das teorias científicas, inclusive das situações de inconsistência teórica.
Data de Registro: 17/09/2016Data do Aceite: 26/10/201
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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