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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
Low reproducibility of the diagnosis of subsegmental pulmonary embolism in symptomatic patients
No full textCoronary artery branch misinterpreted as pathological septal late gadolinium enhancement: a common pitfall during evaluation of athletes with ventricular arrhythmias
No full textUS-guided percutaneous treatment and physical therapy in rotator cuff calcific tendinopathy of the shoulder: outcome at 3 and 12 months
No full textObjectives To monitor the results of ultrasound (US)-guided
percutaneous treatment of calcific tendinopathy of the shoulder
at 12 months (T12) after treatment (T0). To verify the
possible relations between some pre- and post-procedural variables
with the clinical outcome at T12.
Methods Forty-seven patients (26 female and 21 male) were
enrolled in the study. Patients' approval and written informed
consent were obtained. Symptoms were assessed by Constant
Shoulder Score (CSS) at T0 and T12. Thirty of these also
underwent a CSS control at 3 months (T3). The treatment
efficacy was statistically tested for relation with location and
type of calcification, characteristics of the tendon and
subdeltoid bursa, impingement, and rehabilitation treatments.
Results There was a significant increase in the average CSS
value between T0 and T12 (40.7 vs. 75.3). The variables
analysed did not show a statistically significant effect on the
outcome at T12. A link was noticed only between patients'
increasing age and score improvement, particularly among
female subjects.
Conclusion US-guided treatment of calcific tendonitis is a
viable therapeutic option. No pre- or intra-procedural parameters
emerged which might help in predicting the outcome,
apart from patients' needs in everyday life
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
Validation of prognostic impact of CT in medication-related osteonecrosis of the jaw: a longitudinal study
No full textIt's not over until it's over: the chameleonic behavior of COVID-19 over a six-day period.
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