1,720,954 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
Prevalence of Syphilis Among Adolescents Aged 15–19 Years in Durban: A retrospective analysis of 2017 data
Get PDFIntroductionSouth Africa carries one of the highest burdens of sexually transmitted infections (STIs) globally, with syphilis remaining a major public health concern. Despite being easily detectable and treatable, syphilis continues to contribute to significant morbidity and mortality worldwide. While elimination of mother-to-child transmission has been achieved in some countries, outbreaks persist in selected populations, including adolescents, where epidemiological data are often limited. In South Africa, reliable estimates of syphilis prevalence among teenagers remain scarce, despite alarming statistics that highlight the urgent need for early detection and targeted interventions.
AimThis study aimed to determine the prevalence of syphilis among adolescents aged 15–19 years in Durban, South Africa, during the period January–December 2017. A secondary objective was to compare prevalence by sex.
MethodologyA cross-sectional study was conducted using retrospective laboratory records of adolescents aged 15–19 years tested for syphilis between January to December 2017. Both male and female patient results were included. Descriptive statistics were applied to determine overall prevalence and stratify findings by sex.
ResultsA total of 224 patient records were reviewed. The overall prevalence of syphilis was 8% (18/224) among the records reviewed. The prevalence of syphilis was highest among 17- to 18-year-old individuals. Prevalence was higher among males (8.53%) than females (5.77%).
ConclusionWhile the overall prevalence percentage was low, prevalence of syphilis remains ca concern, particularly among male adolescents in Durban. These findings highlight the need for broader population-based studies across KwaZulu-Natal and nationally to strengthen prevention and early detection programs to reduce the burden of syphilis among young people
Assessing knowledge and awareness about Chlamydia trachomatis among undergraduate students at a University of Technology in KwaZulu-Natal, South Africa
Get PDFBackgroundChlamydia trachomatis (CT) is the leading bacterial cause of sexually transmitted infections (STIs) worldwide and represents a major public health problem. The World Health Organization estimated in 2020 that the global prevalence of CT infections had increased by 2.9%, with women disproportionately affected. Understanding knowledge and awareness levels of CT among young adults is essential to inform prevention strategies. The study aimed to assess the level of knowledge and awareness of CT among undergraduate students at a University of Technology in KwaZulu-Natal, South Africa.
MethodsA cross-sectional survey was conducted among female students. Data was collected via a self-administered electronic questionnaire consisting of four sections: demographics and practices; awareness and knowledge of STIs; knowledge of CT; and awareness of CT risk factors and screening methods. Descriptive statistics were used to summarize responses.
ResultsMost participants (90%) had heard of STIs, primarily through social media, school, clinics, and community sources. However, only 20% reported ever being tested for an STI. Awareness of CT specifically was low, with only 43% recognizing the infection and its mode of transmission. Furthermore, 83% lacked knowledge of CT prevention and management. Small proportions identified abstinence (7%), testing (11%), and education/awareness campaigns as preventive measures.
ConclusionAlthough general awareness of STIs was high, knowledge of CT was limited. Targeted health education and campus-based interventions are needed to improve awareness, prevention, and screening practices for specific STIs. The study was limited by its small, single-institution sample and reliance on online survey distribution, which may not have fully represented the intended student population
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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