1,721,004 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
Conductor loss computation in multiconductor MIC's by transverse resonance technique and modified perturbational method
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Acute renal failure associated with cocaine and alcohol abuse
No full textA broad spectrum of renal diseases is reported in cocaine abuse subjects, nevertheless the pathogenesis of the acute temporary renal failure is unclear. Cocaine may induce rhabdomyolysis and/or renal vasoconstriction being a powerful sympathomimethic drug and in turn renal failure. A 20-year-old man developed a reversible acute renal failure following an episode of cocaine and alcohol abuse. He was admitted for oliguria, swelling, pain and reduced strength in the left lower limb. The increase of serum creatinine and muscular enzymes and the presence of urinary granular and jaline casts were suggestive of rhabdomyolysis and renal damage. The clinical picture completely recovered after 15 days from the onset. We believe that an intense arterial vasoconstriction was the more probable mechanism of rhabdomyolysis and acute renal failure in this patient both because renal function recovered 5 days after forced diuresis and because biochemical indices of renal activity were always normal during 4 months after hospital discharge. Moreover, the report that the contemporary ingestion of alcohol and cocaine has an additive and synergistic effect causing the hepatic production of cocaethylene, a metabolite able to increase the systemic toxic effects of cocaine, may support our hypothesis
Rigorous and Efficient Fabrication-Oriented CAD and Optimization of Complex Waveguide Networks
No full textUnidirectional barbed suture versus continuous suture with intracorporeal knots in laparo- scopic myomectomy: randomized controlled trial.
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