1,721,155 research outputs found
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
Patient and clinical evaluation of traditional metal and polyamide removable partial dentures in an elderly cohort
No full textPurpose: To evaluate several clinical and functional parameters by administration of specific questionnaires to an elderly patient's cohort wearing three different types of removable partial denture (RPD): VALPLAST-RPD (Polyamide VALPLAST), CoCr-RPD (cobalt-chromium alloy), and PMMA-RPD (heat polymerized polymethyl methacrylate). Materials and Methods: One hundred twenty patients (mean age 73 years) were included in this study. All patients were treated with a removable partial denture for the maxillary arch. After 1 year of use, patients and clinicians were asked to compile specific questionnaire on patient satisfaction, including aesthetic, functional, and clinical outcomes. It was also evaluated whether the localization of the missing teeth according to Kennedy classification may affect these parameters. Categorical data obtained from the questionnaires were analyzed by chi-squared test. Results: VALPLAST-RPD was the most satisfactory aesthetically. Nevertheless, patients of VALPLAST-RPD group reported increased difficulty in cleaning the prosthesis, roughness perceived by the tongue, and increased retention loss (p < 0.001). Patients with PMMA-RPD claimed a higher level of encumbrance (p < 0.001) and increased speech difficulties (p = 0.002). Clinically, patients of VALPLAST-RPD and PMMA-RPD groups displayed redness of the mucosa area around abutment teeth (p < 0.001). Patients of VALPLAST-RPD group had four cases of artificial teeth loss and two cases of discoloration. The position of missing teeth did not significantly influence any parameter. Conclusions: Each RPD material utilized may present advantages and disadvantages in an elderly population. VALPLAST-RPD may be recommended to older patients with non-extensive edentulous areas supported by anterior and posterior teeth, and not subjected to strong chewing loads. The main advantages are aesthetic satisfaction and easiness to insert and remove it
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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