1,720,988 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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    Pengaruh Beberapa Jenis Herbisida yang Diaplikasikan Berbeda Dosis Dan Waktu Terhadap Kualitas Benih Kedelai Di Musim Penghujan

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    The Influence of Various Kinds of Herbicide Applicated at Different Dosages and Times on Soybean Seed Quality in Rainy SeasonABSTRACT. The experiment was carried out to study the influence of various kinds of herbicide at different dosages and times on soybean seed quality in rainy season. The experimental was conducted at PT Syngenta, Cikampek, West Java. This experimental was arranged in the split-split plot based of randomized block design with 2 replications. The main plot was the time application consists of: R6, R7, and R8 phase. The sub-plot was the application doses of the herbicide that consists of: no herbicide, lower dosage, medium dosage, and higher dose. The response observed covers the seeds water content at harvesting, seeds viability, seeds vigor, the percentage of winkle seed, the weight of 100 seeds and the yield per plot. The result shows that the application of paraquat at lower dose and at R7 nd R8 phase yielding the highest quality compared to any other treatment

    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

    Daya Saing Tanaman Kedelai Hasil Desikasi Herbisisda Paraquat dan Glifosat Terhadap Cekaman Gulma

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    The Competitive of Soybean Used as Dessicant with Paraquat and Glifosat Herbicide on Stress of WeedsABSTRACT. Herbicide might be use for desicant to increase soybean seed quality at rainy season, however not all herbicide can be used as dessicant. Seed with a better quality will growth faster than weed will, they will form leafy coronet that shaded the weed and be able to compete against to the weed. The experiment was conducted during rainy season at PT Syngeta-Cikampek, West Java, started from November 2003 to March 2004. This experiment that was the second experiment was arranged in two-factor randomized block design with two replications. The first factor was the 21 seeds generated from dessicacy test in experiment 1; the second factor was the invasion status of weed that consist of weed invated and weed free. The observed responses includes the weeds characteristics that consist of dominant value ratio and the soybeans response that consist of the height of the plant, the length of the root, the weight of 100 seed. The data was analyzed by Percentage Change Test, Least Significant Increase (LSI) Test, Stres Tolerant Index (STI) Test and continued by Directed STI, The result shows that the seed generated from paraquat herbicide dessicacy at dose of 0.4 kg a.a ha-1 applicated at R2 are more superior than other seed treated by any oyher treatment
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