1,721,002 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
Development of Computational Method for Large Eddy Simulation of Micrometeorologicl Field using Subgrid-Scale Model Based on Turbulence Structures
Get PDFThe diffusion phenomena of heat and pollutants caused by the heat convection or the turbulence flow in the non-isothermal field is one of the important phenomena concerned with the local heavy rain or air pollution. The large eddy simulation (LES) which can analyze the turbulence structures in the non-isothermal field is considered as one of the effective means for investigating those phenomena. The purpose of this study is to develop a computational method for the large eddy simulation of the turbulent transport of heat and vapor in the micrometeorological field. The equations for conservation of mass, momentum, heat and vapor are discretized by the finite volume method using a generalized curvilinear coordinate system, and the coherent-structure Smagorinsky model is applied to a subgrid-scale model. The large eddy simulations of the turbulent channel flow, the backward facing step flow, the Reyleigh-Bénard convection and the shallow cumulus convection are carried out to demonstrate the validity of this method.The diffusion phenomena of heat and pollutants caused by the heat convection or the turbulence flow in the non-isothermal field is one of the important phenomena concerned with the local heavy rain or air pollution. The large eddy simulation (LES) which can analyze the turbulence structures in the non-isothermal field is considered as one of the effective means for investigating those phenomena. The purpose of this study is to develop a computational method for the large eddy simulation of the turbulent transport of heat and vapor in the micrometeorological field. The equations for conservation of mass, momentum, heat and vapor are discretized by the finite volume method using a generalized curvilinear coordinate system, and the coherent-structure Smagorinsky model is applied to a subgrid-scale model. The large eddy simulations of the turbulent channel flow, the backward facing step flow, the Reyleigh-Bénard convection and the shallow cumulus convection are carried out to demonstrate the validity of this method
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
3-Dimensional Large Eddy Simulations of Lock-Exchange Gravity Currents
Get PDFThe gravity currents generated by a density difference within a fluid are the phenomena to be seen in the various scenes of nature. It is one of the important problems to understand the behaviors of the gravity currents in the fields of disaster prevention and environment. The purpose of this study is to recognize the properties of the lock-exchange flow problem that is one of the basic models of the gravity currents. The large eddy simulations of the lock-exchange gravity currents are carried out to investigate the Reynolds number effects for the propagations of the gravity currents and the 3-dimensional flow structures.The gravity currents generated by a density difference within a fluid are the phenomena to be seen in the various scenes of nature. It is one of the important problems to understand the behaviors of the gravity currents in the fields of disaster prevention and environment. The purpose of this study is to recognize the properties of the lock-exchange flow problem that is one of the basic models of the gravity currents. The large eddy simulations of the lock-exchange gravity currents are carried out to investigate the Reynolds number effects for the propagations of the gravity currents and the 3-dimensional flow structures
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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