1,720,972 research outputs found
Re: Shapiro F, Zurakowski D, Sethna NF. Tranexamic acid diminishes intraoperative blood loss and transfusion in spinal fusion for Duchenne muscular dystrophy scoliosis.
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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
Efficacy of the assisted self-reduction technique for acute anterior shoulder dislocation.
No full textIntroduction: The "original" traction-free Kocher's method to perform the reduction of shoulder dislocation has been recently reviewed and some authors speculated that it can be self performed by patients under the guide of the physician. In this way, as an "assisted self-reduction" technique, it is also effective and simple to perform. The aim is to study the effectiveness of the assisted self-reduction technique, in comparison to the well known and largely used traction-countertraction method.
Materials and methods: From a consecutive series of 237 uncomplicated anterior shoulder dislocations, a total of 61 were managed by the residents of our institution under the supervision of the senior authors using the assisted self-reduction method and 176 were managed by other orthopaedic consultants on duty in the Emergency Department using the traction-countertraction technique. Only the senior authors used the assisted self-reduction technique, whereas the other orthopaedic consultants used the traction-countertraction method. The need for intravenous sedation or general anaesthesia to perform the assisted self-reduction was considered a failure. Recorded variables were demographic data, previous dislocation, traumatic mechanism and medication use during shoulder reduction, time to perform the reduction.
Results: Ninety-eight percent of the acute dislocation treated with the assisted self-reduction technique and 81 % treated with the traction-countertraction method were reducible without recourse to intravenous sedation.
Conclusions: The assisted self-reduction technique is simple, effective and gentle. Physicians on duty in the Emergency Departments should therefore be encouraged to use it
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