1,720,955 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

    Assessment of Factors Influencing Food Security in Wenje Division, Tana River County – Kenya

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    Access to food is recognized as a right as stated in the Universal Declaration of Human Rights (1948). However, food security is still not universally treated as a basic human right. Despite the various progressive measures adopted by the Government of Kenya and Non-governmental organizations, the status of food security in Tana River County is appalling. This study was designed to assess the factors influencing food security in Wenje Division in Tana River County. The main purpose of the study was to assess the extent to which, climate change, governance, access to markets and land use affected food security. The study adopted a descriptive survey research design. Stratified random sampling was employed to select 390 (10%) out of a total population of 3,908 households. Data was collected using a questionnaire and Focus Group Discussions. Descriptive statistics and regression modeling were used to analyze quantitative data. Qualitative data was presented in narrative form. The key results from the study show that climate change (p=0.001) and land use (p=0.001) had a significant effect on food security. These factors were also found to have a negative influence on food security in the area. Further, statistical findings show a significant relationship between access to markets and food security, while governance was not found to have a significant influence on food security perhaps due to the solitary nature of the farming households. The study concluded that climate change, market access and land use have a significant influence on food security in Wenje Division, while governance was found not to have a significant influence on food security in the area. The study recommended that the government in partnership with other stakeholders should develop strategies to reduce reliance on rain fed agriculture to mitigate the effects of climate change on food security. The study also recommended land use training and planning to empower farmers with skills in the area to enhance food production. Finally, deliberate efforts should be made by the government and other development actors to enhance market access as this was also found to significantly influence food security in the area

    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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    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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