1,720,986 research outputs found

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

    South African emergency medical service personnel perceptions of research and evidence-based practice

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    Background: Evidence based practice (EBP) is the deliberate application of up to date, best available evidence to make decisions about health care. The implementation of EBP includes five steps: asking the right question, accessing relevant evidence, appraising evidence for reliability and validity, applying evidence to patient care, and lastly assessing clinical practice. The aim of this study was to assess strength of beliefs about EBP, and the frequency of implementation of EBP in South African emergency medical service (EMS) personnel. Methods: In this cross-sectional study we deployed an online survey of South African EMS personnel using two validated scales for measuring individual beliefs about EBP, their ability to implement it, and the extent of actual EBP implementation. Results: There were 67 respondents who were predominantly male (77,6%, n=52), had a mean age of 41,1 (± 9,8) years, and represented a wide range of operational, management and education experience. Measured by the EBP beliefs scale, respondents had a favourable attitude towards EBP (Median score: 60, IQR:51-69). There was no significant difference between the median beliefs score between qualification categories (p=0,578). Responses to the EBP implementation scale items indicate that respondents were not routinely implementing EBP. The median score was 21 (IQR: 8-37). The three EBP activities that were implemented most frequently were informally discussing evidence from a research study with a colleague (n=25), accessing the clinical practice guidelines (n=25), and promoting the use of EBP to colleagues (n=25). Availability of, and access to, appropriate evidence, and a perceived lack of critical appraisal skills, were identified barriers to EBP. In addition, the nature of the patient-provider relationship and the lack of feedback loops limits the application of EBP in EMS. Conclusion: The findings from this study indicate that respondents held favourable beliefs in EBP but identified several barriers to implementation of EBP. Supportive environments and training can facilitate the implementation of EBP principles in prehospital emergency medical care. Deidentified data is available upon request to the corresponding author for use in accordance with the participant consent obtained and pending appropriate ethical approvals

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We 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

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    We 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

    Author Index

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    A retrospective analysis of the circumstantial factors contributing to drowning incidents reported in the South African media

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    The first consensus guidelines for the uniform reporting of drowning were published in 2003, and specifically call for the precipitating factor to be described. The aim of this study was to describe the precipitating factors contributing to fatal drowning incidents reported in the South African media between January 2017 and March 2021 through a retrospective analysis of the Lifesaving South Africa media report database. There were 767 fatal drowning incidents reported during this period. Two thirds (66%) of reported incidents occurred during spring and summer, and the majority occurred in coastal provinces. Weekends and public holidays accounted for the highest frequency of reported incidents. Forty percent of reported fatal drowning victims were children under the age of 16 years. Approximately half (48%) of fatal drowning victims were swimming at the time of the incident, 17% drowned following accidental entry into the water and 11% were boating or sailing at the time of the incident. Understanding the activity immediately preceding the drowning event allows for more efficient and context appropriate design of prevention interventions

    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We 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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