1,720,958 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
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
The relationship of spleen stiffness value measured by shear wave elastography with age, gender, and spleen size in healthy volunteers
No full textWOS: 000463655400004PubMed ID: 30689067PurposeThe aim of this study is to evaluate spleen stiffness values with shear wave elastography (SWE) quantitatively in healthy adults and investigate the relationship of spleen stiffness with age, gender, and spleen size.MethodsThis study included 65 healthy individuals. Spleen stiffness measurement was obtained with 2 dimensional (2-D) SWE method from the middle portion of spleen and calculated in kilopascals by taking the average of three valid measurements. Longitudinal and transverse spleen sizes were measured. The relationship of spleen stiffness with age, gender, and spleen size was investigated. The association between spleen size and age and gender was also evaluated.ResultsThe mean spleen stiffness value was 13.822.91kPa, and the spleen stiffness was not affected by age, gender, or spleen size. Longitudinal spleen size was significantly lower in females than that in males. Moreover, there was a significant negative correlation between longitudinal spleen size and age (r=0.247, p=0.048).Conclusion p id=Par4 Spleen stiffness can be quantitatively measured by 2-D SWE, and the spleen stiffness is not affected by age, gender, and spleen size. The values obtained in this study can be used as normal base values in examination of different spleen pathologies
PERCUTANEOUS TREATMENT OF BILE LEAKAGE AFTER LIVING DONOR LIVER TRANSPLANTATION
No full textGuven, Koray/0000-0001-8572-1998WOS: 000492145900003Objective: Biliary leakage (BL) is one of the most frequent complications following living donor liver transplantation (LDLT). Radiological methods are important in diagnosis and treatment. Although endoscopic approaches are considered as the first-line treatment option in BL, nowadays, increasing experience is strengthening the role of interventional radiological approaches. in our article, we aim to analyze our experience in the diagnosis and treatment of BLs developed after LDLT. Material and methods: Between January 2015 and December 2018, 361 LDLT cases performed consecutive at our center were analyzed retrospectively. the leakage diagnosis and location was demonstrated by magnetic resonance cholangiopancreatography (MRCP) with hepatobiliary excreted contrast agent gadoxetate disodium in patients with suspected leakage. BLs were treated by endoscopic, interventional radiological, surgical or conservative approaches. Results: of the total 361 cases, 27 (7.4%) had BL. Twenty six (96%) of the BL were anastomotic and 1 (3,7%) was incision surface leakage. One patient (3.7%) was treated by endoscopic sphincterotomy methods, 23 (85,1%) patients by interventional radiological approaches, two patients (7.4%) by surgery and 1 patient (3,7%) by conservative approaches. There were no minor and major complications during interventional radiological procedures. After the procedure, minor complications (mild cholangitic attack) in 4 (17.4%), mild edematous pancreatitis in 2 (8,6%) developed in 6 (26%) patients. Conclusion: Endoscopic treatment approaches may be complicated in patients with multiple anastomosis of biliary tract after LDLT. Although interventional radiological approaches require experience, they can be performed as an alternative treatment method
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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