1,720,966 research outputs found

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

    Assurance Maladie et État de Santé au Kenya : Vers une Couverture Sanitaire Universelle

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    Le troisième objectif de développement durable des Nations unies, qui vise à garantir une vie saine et à promouvoir le bien-être de tous à tout âge, souligne la priorité de la santé dans le programme de développement international. La réalisation de cet objectif au niveau national est toutefois entravée par les problèmes de financement des soins de santé. La plupart des pays d'Afrique subsaharienne, y compris le Kenya, sont confrontés à une charge de morbidité élevée et à des ressources financières insuffisantes pour financer la fourniture de services de santé. C'est pourquoi le financement des soins de santé par le biais de l'assurance maladie gagne en popularité dans les pays en développement dans leur quête d'une couverture sanitaire universelle. Cependant, il y a peu de preuves de l'impact de l'assurance maladie sur l'état de santé de la population au Kenya. Cette étude a cherché à comprendre et à analyser les liens de causalité entre le statut d'assurance maladie et les résultats de santé parmi les populations assurées et non assurées au Kenya. L'approche d'estimation adoptée est la méthode IV 2SLS et la méthode de la fonction de contrôle afin de tenir compte des biais d'endogénéité et d'hétérogénéité présents dans les estimateurs MCO. En outre, les techniques d'estimation probit et logit ont été adoptées pour analyser les déterminants de l'adhésion à l'assurance maladie. La principale conclusion est que l'assurance maladie réduit la mortalité, améliorant ainsi l'état de santé de la population kenyane. Et ce, malgré le faible taux d'adhésion à l'assurance, notamment à l'assurance maladie privée. L'étude recommande de promouvoir la couverture de l'assurance maladie par la restructuration des régimes fragmentés du NHIF en consolidant les différents régimes d'assurance afin de servir les différents groupes de population de manière plus efficace et plus équitable. Une autre recommandation est d'encourager l'adhésion volontaire privée et publique à l'assurance maladie en légiférant et en concevant des régimes de prestations complets et attrayants destinés aux acteurs du secteur informel ayant la capacité de payer. Le gouvernement devrait toutefois continuer à offrir des subventions sous forme d'assurance maladie aux populations marginalisées, vulnérables et pauvres

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We 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

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    We 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

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