1,721,182 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
Life History Tradeoffs and Genetic Variation for Social Behaviors in a Wild Primate Population
No full textUnderstanding the genetic and environmental forces that contribute to phenotypic variation is a major goal of evolutionary biology. However, social living blurs the distinction between genes and environments because the social environment is (at least in part) determined by the genes of its members. Therefore, the genes that influence an individual’s phenotype are not limited to his own genes (direct genetic effects) but potentially include the genes of individuals in his social context (indirect genetic effects).Indirect genetic effects are thought to be of particular importance in the evolution of social behavior. Social living is a common phenotype in many animal taxa and is especially well-developed in non-human primates and humans. Social living is believed to be an adaptive response to ecological pressures and indeed, positive correlations between social behaviors and fitness components have been demonstrated in multiple species. However, despite a long-history of theoretical studies investigating the evolution of social behavior, whether social behaviors demonstrate the additive genetic variation necessary for evolution to occur remains poorly understood. No doubt this is due in part to the difficulty of determining the genetic basis of social behavior; social phenotypes are complex and by definition involve interactions between multiple individuals. Genetic variation for social behaviors, therefore, likely results from both direct and indirect genetic effects. Here, I investigated the direct and indirect sources of additive genetic variance in both agonistic and affiliative social behaviors, in a population of wild baboons. In this population (as well as in other populations and species), affiliative social behaviors have been clearly linked to survival, an important fitness component. Therefore, I began with an investigation of the sources of variance in female fitness in our population (Chapter 2). I found that heterogeneity in female quality was a primary driver of the relationship between life history traits, and phenotypic tradeoffs between these traits were apparent only when considering variation in individual quality. In chapter 3, I used a quantitative genetic approach to examine the direct and indirect sources of genetic variation in affiliative social behavior (grooming). I found that both grooming given and grooming received were heritable, and documented a positive genetic correlation between these traits. In chapter 4, I examined the sources of genetic variation in agonistic behavior. This investigation was complicated by the non-genetic transmission of dominance ranks from mothers to daughters. I implemented a novel method to partition social and genetic sources of similarity between relatives and found important roles for both genetic and social variance in the relationship between agonism given and agonism received.</p
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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