1,721,768 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Variations on the Author
Get PDF“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
Get PDFWe 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
Get PDFWe 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
Crisis, juicio político y judicialización de la gobernabilidad: el STF y la estabilización del sistema político
No full textEste trabajo pretende describir el papel desempeñado por el STF (Corte Suprema brasileña) durante el proceso de juicio político de la ex-Presidente Dilma Rousseff. Desde una perspectiva analítica que combina los flujos de eventos políticos en la agenda del STF y el contenido de las decisiones judiciales con repercusiones en la agenda del juicio político en el Congreso, el texto evalúa el comportamiento de la Corte como encargado de la crisis política que resultó en la destitución de Rousseff. El trabajo examina las principales decisiones de la Corte con impacto en los actores políticos involucrados en la crisis desde la aceptación del proceso de juicio político por parte de la Cámara de Diputados hasta el retiro definitivo de la ex-presidente por una decisión del Senado. Además del análisis de las características presentes en las discusiones de los ministros y de los fundamentos a que se acogió en las decisiones que indican la asunción por parte de la Corte de la función de administración de los riesgos a la estabilidad política, el texto plantea la hipótesis de que la crisis ha expuesto un nuevo rostro de la judicialización de los conflictos políticos que se someterán a arbitraje por el STF, cuyo objeto sería la reducción de costes políticos en la desgastada relación entre ejecutivo y legislativo con el objetivo de promover la gobernabilidad del país.Fil: Zaidan De Carvalho, Alexandre Douglas. Universidade de Brasilia; Brasil
Crisis, juicio político y judicialización de la gobernabilidad: el STF y la estabilización del sistema político
Get PDFEste trabajo pretende describir el papel desempeñado por el STF (Corte Suprema brasileña) durante el proceso de juicio político de la ex-Presidente Dilma Rousseff. Desde una perspectiva analítica que combina los flujos de eventos políticos en la agenda del STF y el contenido de las decisiones judiciales con repercusiones en la agenda del juicio político en el Congreso, el texto evalúa el comportamiento de la Corte como encargado de la crisis política que resultó en la destitución de Rousseff. El trabajo examina las principales decisiones de la Corte con impacto en los actores políticos involucrados en la crisis desde la aceptación del proceso de juicio político por parte de la Cámara de Diputados hasta el retiro definitivo de la ex-presidente por una decisión del Senado. Además del análisis de las características presentes en las discusiones de los ministros y de los fundamentos a que se acogió en las decisiones que indican la asunción por parte de la Corte de la función de administración de los riesgos a la estabilidad política, el texto plantea la hipótesis de que la crisis ha expuesto un nuevo rostro de la judicialización de los conflictos políticos que se someterán a arbitraje por el STF, cuyo objeto sería la reducción de costes políticos en la desgastada relación entre ejecutivo y legislativo con el objetivo de promover la gobernabilidad del país.Fil: Zaidan De Carvalho, Alexandre Douglas. Universidade de Brasilia; Brasil
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
Metodologia inversa quase-tridimensional para o projeto de máquinas de fluxo hidráulicas
Get PDFInverse methodologies continue to be important computational tools for the design of
flow machines, despite the sophisticated methods currently available for the analysis of viscous
three-dimensional flows. A Quasi-Three-Dimensional methodology based on the
interdependent solution of two inverse problems is described in this work: the through-flow
problem and the blade-to-blade problem. The developments continue the research by Santos et
al. (2012) and Barbosa (2018). The solution to the through-flow problem – referring to the work
of Santos et al. (2012) - provides the shape of the mean flow surface and the results of the
streamlines, to meet a given hydraulic momentum distribution. The inverse blade-to-blade
problem – referring to the developments of Barbosa (2018) – provides the geometry of the
blades, given a finite number of blades, on surfaces of revolution whose generatrices are the
streamlines resulting from the through-flow problem. Until then, the effects of thickness and
blocking were disregarded. In this work, a methodology for including thickness distributions
along the blades is described. The thickness effect is analyzed through the direct solution of the
blade-to-blade problem (now considering profiles) using the panel method based on linear
vortex distributions. The corresponding blocking factors are calculated, and the results feed the
input of a new solution of the through-flow problem. Thus, the through-flow problem and blade to-blade become coupled. The geometry is recalculated, now considering the effect of thickness
and blocking. Furthermore, the effects of a) hydraulic momentum distribution; b) finite number
of blades; c) thickness; d) blocking; e) combination of b), c) and d); and f) profile stacking line
on the geometry of the blades and their hydrodynamic loads are analyzed.Metodologias inversas continuam sendo importantes ferramentas computacionais para
o projeto de máquinas de fluxo, mesmo perante os sofisticados métodos disponíveis atualmente
para análises de escoamentos tridimensionais viscosos. É descrita neste trabalho uma
metodologia Quase-Tridimensional baseada na solução interdependente de dois problemas
inversos: o problema meridional e o pá-a-pá. Os desenvolvimentos dão continuidade às
pesquisas de Santos et al. (2012) e Barbosa (2018). A solução do problema meridional –
referente ao trabalho de Santos et al. (2012) - fornece o formato da superfície média do
escoamento e os resultados das linhas de corrente, para atender a uma determinada distribuição
de momento hidráulico. Já o problema pá-a-pá inverso – referente aos desenvolvimentos de
Barbosa (2018) – fornece a geometria das pás, dado um número finito de pás, nas superfícies
de revolução cujas geratrizes são as linhas de corrente resultantes do problema meridional. Até
então, os efeitos de espessura e bloqueio eram desconsiderados. Neste trabalho, uma
metodologia para inclusão de distribuições de espessuras ao longo das pás é descrita. O efeito
da espessura é analisado através da solução direta do problema pá-a-pá (agora considerando
perfis) por meio do método de painéis baseado em distribuições lineares de vórtices. Os fatores
de bloqueio correspondentes são calculados, e os resultados alimentam a entrada de uma nova
solução do problema meridional. Assim, o problema meridional e pá-a-pá passam a ser
acoplados. A geometria é calculada novamente, agora considerando o efeito da espessura e do
bloqueio. Além disso, são analisados os efeitos de a) distribuição do momento hidráulico; b)
número finito de pás; c) espessura; d) bloqueio; e) combinação de b), c) e d); e f) linha de
empilhamento dos perfis sobre a geometria das pás e seus carregamentos hidrodinâmicos
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