1,720,967 research outputs found
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
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
Concomitant right subscapular and left olecranon elastofibroma followed by inversion of the lesions: Case report
No full textElastofibroma is a benign, poorly circumscribed, tumor-like condition involving, in the vast majority of cases, the subscapular region of elderly individuals, though isolated cases have been seen in the deltoid muscle, infraolecranon area, hip, thigh and stomach. It is characterized by accumulated abnormal elastic fibres and is generally regarded as a reactive process, an unusual fibroblastic pseudotumor. Multiple elastofibromas have been reported to occur in the scapula and olecranon and in the scapula and ischium, whereas literature reports of multiple elastofibromas in the same patient are rare. The case of concomitant, asynchronous double elastofibroma in the same patient is described. A 69-year-old woman presented with right subscapular and left olecranon swelling associated with pain and a clicking sensation during certain arm movements. Some months later the patient developed asymptomatic left subscapular and right olecranon swelling. All the lesions, which were subsequentely disgnosed as elastofibromas, were removed
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
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