1,720,965 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Takotsubo Cardiomyopathy Due to Combined Use of Phentermine and Lisdexamfetamine
Get PDFObjectives: This is the first case report of iatrogenic Takotsubo syndrome (TS) due to a combination of lisdexamfetamine and phentermine.Background: TS is characterized by transient acute ballooning of the left ventricular wall. Typically, it occurs in extremely stressed post-menopausal women, however a few iatrogenic causes have been described recently.Results: A 55-year old woman prescribed lisdexamfetamine and phentermine, presented with acute substernal chest pain. Acute coronary syndrome was excluded. The echocardiogram was diagnostic of TS, and she recovered spontaneously, with supportive care.Conclusion: Caution with the use of sympathomimetic medications in post-menopausal women appears warrante
The Diet Quality of Medical Students in the United States During the Early COVID-19 Pandemic
Get PDFBackground: Medical students report lacking the knowledge to conduct nutrition counseling for patients and practice good dietary quality in their personal life. This cross-sectional study describes the dietary quality of medical students at one Midwestern College of medicine during the early COVID-19 pandemic in the United States of America.
Methods: Cross-sectional study based on a survey applied to medical students (n=102) during spring 2020. We used the Rapid Eating Assessment for Participants–Shortened (REAP-S) to assess dietary quality during the COVID-19 pandemic. The response rate was 27%. The primary outcome was to obtain total mean REAP-S scores and identify variables related to poor diet quality.
Results: A mean REAP-S score of 30.5, SD=3.9 (range 13-39) was obtained (67% of ideal dietary quality). Body weight remained the same for 54.9% of students, 25.7% gained weight, and 18.8% lost weight during the late spring of 2020. Students with BMI < 24.9 kg/m2 (mean REAP-S score of 31.6±3.6) had a significantly better dietary quality (p < 0.001) compared to students with BMI > 25 kg/m2 (mean REAP-S score of 28.9±3.9). Students with a self-reported “less healthy” diet (mean REAP-S=28.2±3.3) had significantly worse dietary quality (p < 0.001) compared to those who either maintained a healthy diet (mean REAP-S=31.1±3.8) or improved diet (mean REAP-s=31.9±3.6). Of note, 89.2% of students indicated that they want to improve their diet.
Conclusion: The dietary quality of participants was found to be sub-optimal during the early COVID-19 pandemic, potentially impacting our future medical workforce\u27s long-term health adversely
- …
