1,721,824 research outputs found
Mbewu ducks AIDS deaths
Full text linkThe original publication is available at http://www.samj.org.zaCITATION: Ehrlich, R. et al. 2005. Mbewu ducks AIDS deaths. South African Medical Journal, 95(4):198.[No abstract available]Publisher’s versio
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
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
Mesothelioma in South Africa 3 decades post peak of asbestos production an analysis of a claims database of asbestos ex-miners
No full textIncludes bibliographical references.The peak in production of the three forms of asbestos that were commercially mined in South Africa occurred in the years between 1970 and 1977. Given the latency period of 20-40 years, we should expect to observe a rise in the incidence of mesothelioma throughout this decade. However, all we may ever observe is just the surface of what may be an immeasurable burden of disease due to amongst other reasons, the lack of representative data and the nature of mesothelioma itself. As a result of the obstacles that impeded earlier research, South African studies that have been conducted since Wagner et al. first established the association between asbestos and mesothelioma in 1960, have reported under estimated measures of occurrence of the disease, especially amongst black examiners. It also due to the exploitation and injustice to former miners throughout the asbestos mining history that we remain with an unknown burden and epidemiology of disease as well as heavy costs towards healthcare and rehabilitation of mine dumps. The author sought to review the medical information of claimants registered on an asbestos compensation database hosting the largest number of black asbestos ex-miners of all case series published in South Africa to date. The aim was to describe the demography and the epidemiology of the disease amongst those who had been diagnosed with mesothelioma between 2003 and 2010. The protocol (PART A) describes a brief background of the two Trusts on which this study was based, and the methodology of the study. The literature review (PART B) illustrates the conditions that prevailed in the asbestos mining industry and how these have distorted the epidemiology of mesothelioma in South Africa. The manuscript of the article (PART C) illustrates the data analysis, the results, as well as the discussion of the results. The objective was to describe the proportions of mesothelioma cases within the database by various characteristics. We also described by race the investigations that the claimants underwent to reach the diagnosis. The results showed that out of the 15 461 claimants registered on the database, 295 (1.91%) had mesothelioma. Of these, 54.24 % were black, 7.80% coloured and 37.97% white. There were more men (76.69%) than women (23.39%)
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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