1,720,970 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

    Risk influencing factors in maritime accidents : An exploratory statistical analysis of the Norwegian Maritime Authority incident database

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    This report is an exploratory statistical analysis of the Norwegian Maritime Authority’s database, using data on groundings, collisions, allisions fires/explosions and some data on capsizings in Norwegian waters from 1981 through 2014. The analysis is part of the Norwegian Ship Risk Model project. The statistical analysis is divided into two parts. The first part is a descriptive analysis, which identifies common traits in accidents. Vessel types are broken down into 12 categories. Fires/explosions are most common on small fishing vessels in outer coastal waters in Northern regions, with a notable proportion happening in dock. Groundings are most common on cargo vessels in narrow coastal waters in Northern regions, and in the dark. Capsizings typically involve small fishing and cargo vessels in outer coastal waters, and feature strong winds and higher seas. Collisions are most frequent among fishing and break bulk vessels in outer coastal waters. Allisions are common among medium sized passenger vessels in the harbour area. The second part of the analysis uses multinomic regression to describe variation between accidents. Accident types vary modestly between vessel types, gross tonnages and length, but substantially between waters. Groundings are associated with narrow coastal waters, collisions with outer coastal, allisions with port areas, and fires/explosions are associated with vessels in dock. Weather has limited effect, although collisions are ten times more likely than other accidents under no visibility. High vessel damage severity was primarily associated with shorter vessels. We were not able to explain much variation in injuries and fatalities. The results indicate a strong need to connect accident data with normalized traffic data to identify risk influencing factors with more certainty

    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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    Working Conditions and Wellbeing: A multilevel analysis of 34 European countries

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    This paper studies the effects of working conditions on wellbeing in 34 European countries. The background for the study is an interest in work as a social determinant of health, in this case mental health as captured in the concept of wellbeing. Working conditions are theorized at three levels. At the micro level, the psychosocial theories on stress and the work environment are reviewed; the demand-control-support model, effort-reward imbalance, organizational justice and emotional labour. The physical environment is also covered. At the meso level, social class is theorized as relational versus positional, and its relationship to the social gradient is discussed. At the macro level, two alternative typologies are compared. First, the typology of welfare state regimes based on Esping-Andersen (1990). Second, the typology of what I refer to as working conditions regimes, based on the Work Security Index (Rosskam 2009). The thesis uses data from the European Working Conditions Survey. The technique of multilevel analysis is applied using a random intercept model, showing that around 5.7% of the variation in wellbeing stems from the national level. The results show that psychosocial theories such as the demand-control-support model, effort-reward imbalance, organizational justice, as well as the physical environment all have a significant influence on wellbeing, while emotional labour does not. Occupational class has a significant effect for lower classes. At the national level, there are more significant differences between the working conditions regimes than among the welfare states regimes. In terms of effects sizes, the psychosocial models are about as influential as the working conditions regimes, while class appears to have relatively modest influence on wellbeing. Working conditions regimes thus emerge as a viable alternative to welfare regimes when studying health related inequalities in the field of working conditions. The theoretical basis for the working conditions regimes is discussed, and there appears to be need for further theorizing and empirical research on this relatively new concept. Justice is proposed as a key framework influencing wellbeing at an institutional level, beyond the psychosocial. The thesis also argues that structural explanations to national differences in wellbeing are in need of further research

    Working Conditions and Wellbeing: A multilevel analysis of 34 European countries

    Get PDF
    This paper studies the effects of working conditions on wellbeing in 34 European countries. The background for the study is an interest in work as a social determinant of health, in this case mental health as captured in the concept of wellbeing. Working conditions are theorized at three levels. At the micro level, the psychosocial theories on stress and the work environment are reviewed; the demand-control-support model, effort-reward imbalance, organizational justice and emotional labour. The physical environment is also covered. At the meso level, social class is theorized as relational versus positional, and its relationship to the social gradient is discussed. At the macro level, two alternative typologies are compared. First, the typology of welfare state regimes based on Esping-Andersen (1990). Second, the typology of what I refer to as working conditions regimes, based on the Work Security Index (Rosskam 2009). The thesis uses data from the European Working Conditions Survey. The technique of multilevel analysis is applied using a random intercept model, showing that around 5.7% of the variation in wellbeing stems from the national level. The results show that psychosocial theories such as the demand-control-support model, effort-reward imbalance, organizational justice, as well as the physical environment all have a significant influence on wellbeing, while emotional labour does not. Occupational class has a significant effect for lower classes. At the national level, there are more significant differences between the working conditions regimes than among the welfare states regimes. In terms of effects sizes, the psychosocial models are about as influential as the working conditions regimes, while class appears to have relatively modest influence on wellbeing. Working conditions regimes thus emerge as a viable alternative to welfare regimes when studying health related inequalities in the field of working conditions. The theoretical basis for the working conditions regimes is discussed, and there appears to be need for further theorizing and empirical research on this relatively new concept. Justice is proposed as a key framework influencing wellbeing at an institutional level, beyond the psychosocial. The thesis also argues that structural explanations to national differences in wellbeing are in need of further research

    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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