1,721,026 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

    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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    Safety performance measurement framework for offshore oil and gas platforms in Malaysia / Daniel Tang Kuok Ho

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    The Macondo blowout in the Gulf of Mexico on the 20th April 2010 which caused 11 fatalities and numerous serious injuries turned attention again to safety of offshore oil and gas activities. Findings of the US Chemical Safety Hazard Investigation Board pointed to a lack of focus on process safety addressing major accident hazards, over-reliance on lagging indicators and overemphasis on personal safety. The findings also highlighted the use of both leading and lagging safety indicators has great potential in major accident prevention. Safety management on offshore installations is divided into process and personal safety, leading to fragmented safety performance measurement which overemphasizes on personal safety and the lagging aspects of process safety. From analysis of offshore accident data, the EU Commission recommended pooling of data to provide well-rounded picture of offshore safety, inclusion of near misses in accident databases, and common formatting to facilitate data and experience sharing. This study presents a comprehensive safety performance measurement framework for offshore oil and gas platforms in Malaysia which combines both leading and lagging safety indicators to monitor major aspects of process and personal safety. It identifies 70 leading and lagging safety indicators grouped under 14 safety factors most pertinent to offshore oil and gas platforms via literature review and inputs of industrial practitioners. It stages an integrative approach to unify the relevant offshore safety indicators from past studies and systematically apply them for performance measurement. The first phase of the study involved compilation of a list of indicators and development of questionnaire to gauge the perception of safety and health practitioners in 10 major oil and gas companies in Malaysia on the importance of the indicators and the perceived risk of failing to observe the indicators. The second phase involved statistical analyses of the survey data to yield descriptive statistics of the indicators, hence the safety factors, as well as the correlations between the safety factors demonstrated via factor analyses, hierarchical clustering and Pearson correlation. Weights of the safety indicators were also derived in this phase. The third phase of the study centered on development and validation of the safety performance framework. The framework consists of two components, i.e. a scoring system to generate the scores of the respective safety factors, hence the overall safety score of an offshore installation, as well as a fuzzy inference system to generate a composite safety performance index based on scores of the safety factors and the rules established by safety experts. The framework functions to pull safety data together and presents them in a common format which is responsive to experience gained, emergence of new indicators and changes in performance targets and standards. An alternative architecture of the fuzzy inference system with intermediate models of correlated safety factors was also proposed to simplify rule-setting of fuzzy inference system. The framework was finally validated against facility status reports and actual lagging performance of offshore platforms. The validation demonstrated reliability and applicability of the framework for offshore safety performance measurement, reporting and benchmarking. The findings showed the ability of the framework to highlight major contributors of offshore incidents, demonstrate interactions between safety factors, monitor well-being of platform’s safety management system and reveal causation of physical safety system failure

    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

    sj-docx-1-pib-10.1177_09544054211037493 – Supplemental material for Dynamic modelling of a servo self-pierce riveting (SPR) process

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    Supplemental material, sj-docx-1-pib-10.1177_09544054211037493 for Dynamic modelling of a servo self-pierce riveting (SPR) process by Daniel Tang, Mike Evans, Paul Briskham, Luca Susmel and Neil Sims in Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture</p
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