1,720,954 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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    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

    Sizing of Unit operations in process engineering using Aspen Hysys Plus

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    This project deals with the sizing of unit operations in process engineering. Process engineering is the understanding and application of the fundamental principles and laws of nature that allow us to transform raw material and energy into products that are useful to society, at an industrial level. By taking advantage of the driving forces of nature such as pressure, temperature and concentration gradients, as well as the law of conservation of mass, process engineers can develop methods to synthesize and purify large quantities of desired chemical products. In this project we will focus in the design, operation, control, optimization and intensification of chemical processes by designing pipelines in each case study. For Numerical Resolution, will use the chemical process simulator Aspen HYSYS, used to mathematically model chemical processes. We have a multitude of problems to deal with during this project. 1. Study of an incompressible fluid flow in a pipeline 2. Technology of Heat Exchangers 3. Refrigeration cycl

    The Holy Quran Revelation: Copper and it’s Astonishing benefits for Humankind from a Chemical Perspective

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    One of the most important grants of God Almighty to mankind is iron and other metals such as Copper. The reality that there is mention of copper (Cu) in the Holy Quran can be considered as a sign of it’s big importance for the human life. The fact that copper was mentioned several times either under it’s pure form or alloyed with iron might be a sign this metal is so useful for us and without it the human civilization would not progress. Verses "Ayat” of the Holy Quran are rich in meanings and words that need to be deeply managed and checked for understanding. The interpreters have begun to explain these meanings and words for thousands of years. However, as is well known, the Qur’an has lot of secrets that make it renewed and parallel to every age. In view of the modern scientific discoveries, many of the words of the Holy Quran have potential aspects of interpretation which are useful in understanding the purpose of these words. Therefore, most scholars have many scientific ideas and terms that explain the interpretation of the verses of the Quran and some of the Qur’anic terms from a scientific perspective that illustrates the scientific miracles in the Holy Quran. In this study we have addressed the Qur’anic word "Qitr" which was interpreted by the exponents as the dissolved copper in the field of Chemistry
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