1,720,964 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
Three-dimensional versus two-dimensional laparoscopy for ovarian cystectomies: a prospective randomized study
No full textObjective: The purpose of this study was to evaluate whether the use of three-dimensional (3D) laparoscopy had any advantages over the conventional two-dimensional (2D) approach for ovarian cystectomies for apparently benign ovarian cysts.
Methods: This was a prospective randomized studyinvolving women undergoing laparoscopic ovarian cystectomy. Women were randomized into two groups in which the ovarian cystectomy was performed either by 2D (2D group) or 3D laparoscopy (3D group). The primary outcome was the differences inglobal rating scores of the GlobalOperative Assessmentof Laparoscopic Skills (GOALS) assessment tool between the two groups. The secondary outcomeswere the duration of cystectomy, and surgeons' preferences and perceived side effects.
Results: 38 and 37 women were respectively assigned to 2D and 3D group. Participants in 2D group reported more efficient tissue handling than in 3D group (rating score: 4.2+/−0.8 versus 3.8+/−0.8, p = 0.033). Duration ofcystectomy (47.6+/−32.0 minin 2D versus 51.6+/−36.2 min in 3D, p = 0.718), andsum of GOALS score (20.8+/−3.9 in 2D versus 20.1+/−3.3 in 3D, p = 0.393) were similar between the two groups. Surgeons from 2D group experienced less nausea, dizziness and ocular fatigue thanfrom 3D group (5.3 % in 2D versus 45.9 % in 3D, p < 0.0005). 43.3 % and 18.9 % of the 3D participants expressed their preference for 2D and 3D laparoscopy, respectively; while 37.8 % had no preference.
Conclusions: 3D laparoscopy for ovarian cystectomies does not seem to achieve a significant benefit when compared to the conventional 2D laparoscopy and causes more side effectsto the surgeons
Three-dimensional versus two-dimensional laparoscopy for ovarian cystectomy: a prospective randomised study
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Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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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