1,720,990 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
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
Recurrent rheumatism and idiopathic osteoporosis in young adults. Coincidence or association? [[Reumatismo palindromico e osteoporosi idiopatica del giovane adulto. Rapporto casuale o associazione?]
No full textAlthough in literature are not reported any cases of an association between palindromic rheumatism and idiopathic osteoporosis, the Authors describe two patients, to whom the above-mentioned diseases appeared and were diagnosed at the same time, suggesting a possible interrelationship
Joint hypermobility in rheumatology practice: Clinical manifestation and differential diagnosis [Le sindromi da ipermobilità nella pratica reumatologica: clinica e diagnosi differenziale]
No full textAmong the heritable disorders of connective tissue, joint hypermobility represents the most frequent disease; in fact generalized ligamentous laxity is seen in a substantial proportion (perhaps 10%) of healthy individuals, the overwhelming majority of whom probably suffer on ill effects. The aim of this review is reporting the new advances on joint hyperlaxity's pathogenesis and the criteria proposed allowing the differential diagnosis
A typical methotrexate dermatitis in a patient suffering from rheumatoid arthritis [Su di un caso inconsueto di dermatite da metotrexate in un paziente affetto da artrite reumatoide]
No full textMethotrexate has been implicated in a variety of cutaneous adverse reactions including alopecia, hyperpigmentation, urticaria, small vessel vasculitis, false photosensitive reaction and porphyria cutanea tarda. We report a case of a patient with rheumatoid arthritis, who, five days after the second methotrexate injection, presented with mouth ulcers and cutaneous manifestations; these last were characterized by non pruriginous, purpuric, erythematous and confluent patches localized over the right hip and left shoulder, with a metameric distribution. We clinically excluded anaphylaxis, urticarial or purpuric reactions and based diagnosis on the histological findings showing a leukocytoclastic vasculitis. This report led us to conclude that a small vessel angiitis may also present after a low dose of methotrexate and that cutaneous reactions to the drug are not uncommon
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
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