1,721,194 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

    Overall Conclusion of the Book

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    In many Asian countries, the questions of limits to growth and the challenges of overcoming such limits are clearly at work today. Japan is facing quickly an ageing and shrinking population, a situation that South Korea is bound to face in the near future too. China is facing the problem of the exhaustion of its export-led growth model based on low factor prices, as well as the unprecedented problem of environmental degradation. Food supply is still of concern in most Asian countries and, over the long run, climate change is projected to diminish the agricultural productivity growth potential. A paramount issue is thus the environmental constraint and the transition of these countries to energy-saving methods of production. China is shifting quickly to the use of electric cars whereas Japan still faces uncertainty in terms of its nuclear energy programme. Some of these challenges can be analysed and tackled at the micro-economic level,—the level of the firm—, whereas other challenges are better apprehended at the nation specific level, while many other still are to be tackled at the international level, particularly as far as international relationships are concerned

    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

    Asian Palm oil production and european vegetable oil market: what we can learn in terms of sustainability

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    Palm oil production has had an extraordinary evolution since 2000, especially in Southeast Asian countries. Its profitability is related to lower market prices due to it having the cheapest production costs, compared to the other EU oils. Market forces have stimulated its production and trade, with a shift in the use of land in tropical countries (particularly in Southeast Asia). Palm oil has a high smoke point for its saturated fatty acid content, which is much healthier than the performance of conventional oils produced and used in Europe (corn, sunflower and peanut oil). The controversy of which palm oil has been the subject is linked to the environmental sustainability aspects of the production process. According to the European Commission, palm oil cultivation over the past 20 years has been the cause of 20% of global deforestation. However, our results highlighted that the price trends of selected vegetable oils are related to their variations. This allows the advancing of some hypotheses. On the supply side, the production costs (decisively in favour of palm oil) and the environmental constraints are affecting the vegetable oil market. On the demand side, the number and price, on the one hand of substitute products, and on the other hand of the complementary good as well as consumer taste and preference, all influence consumer behaviour. Consumer income and its distribution and, in both cases, public policies affect the various choices to be made. Public action should therefore consider these variables. A single policy may not be sufficient to steer the market in the right direction, especially in the logic of market globalisation

    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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