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    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

    Efforts to Prevent Recurrence of Stroke in Stroke Patients

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    Stroke is a major health problem for modern society today. A person who has had a stroke has a greater tendency to have a recurrence of stroke. This study aims to analyze efforts to prevent the occurrence of recurrent stroke in stroke patients at the Neurological Poly of Muhammdiyah Gresik Hospital. This type of research is correlational analysis, which is looking for a relationship between two variables, with a cross sectional approach between independent and dependent variables. The population in this study is all stroke patients at the Neurological Poly. The sample was taken by purposive sampling technique obtained by 48 respondents.  The test results showed that the significance of the overall count results was less than 0.05 which meant that there was a significant relationship between prevention efforts, namely blood pressure control, bloodsugar control, obesity, medication adherence, family support and stress to the occurrence of recurrent strokes. Based on the results of the study, it is hoped that health workers can make efforts to prevent recurrent stroke as an important step in handling stroke patients and provide education about it to patients and their families. The hospital should make standard operational procedures or other forms of policies regarding efforts to prevent recurrent strokes.   Keywords : Efforts to Prevent Recurrent Stroke, Recurrent Stroke Incidenc

    Identifikasi Sifat Fisika Tanah Sawah Irigasi dan Tadah Hujan di Desa Gombang Kecamatan Sengah Temila Kabupaten Landak

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    Dalam upaya meningkatkan produksi padi di Kalimantan Barat, petani Kecamatan Sengah Temila melakukan penanaman padi dilahan sawah tadah hujan dan sawah irigasi, sebagai salah satu media pertumbuhan tanaman padi. Hasil produksi padi di lahan penelitian pada lahan sawah tadah hujan 1 ha dengan produksi padi 1 ton dan lahan irigasi 1 ha dengan produksi padi 3,5 ton. Penelitian ini bertujuan untuk mengetahui perbedaan sifat fisik tanah sawah pada dua lahan di Desa Gombang, Kecamatan Sengah Temila, Kabupaten Landak. Penelitian dilakukan di Desa Gombang, lahan penelitian merupakan lahan sawah, Irigasi dan Tadah Hujan, dengan luas masing-masing 2 ha diambil 5 titik sampel secara diagonal, dengan 2 kedalaman yaitu 0-20 cm dan 20-40 cm. sampel tanah diambil dalam bentuk sampel tanah utuh dan sampel tanah terganggu.Hasil dari penelitian ini frofil tanah pada lahan sawah irigasi dan tadah hujan, warna tanah pada lahan sawah irigasi coklat sangat pucat dengan struktur prisma dan struktur lempung berdebu pada kedalaman 0-60 cm warna abu-abu gelap dengan struktur tiang dan tekstur liat berdebu dengan kedalaman 60-100 cm sedangkan pada lahan sawah tadah hujan dengan warna abu-abu kedalaman 0-100 cm dengan struktur remah dan tekstur lempung liat berpasir kedalaman 0-30 cm dan 30-100 cm struktur gumpal dengan tekstur liat berpasir. Hasil uji-t untuk melihat perbedaan sifat fisika tanah pada sawah tadah hujan dan sawah irigasi, pada semua parameter menunjukkan hasil berbeda tidak nyata.Rerata bobot isi tanah pada kedalaman 0-20 cm dan 20-40 cm pada lahan irigasi lebih tinggi di bandingkan lahan sawah tadah hujan. Nilai rerata kadar air tanah kapasitas lapangan pada lahan sawah irigasi pada kedalaman 0-20 cm dan 20-40 cm lebih rendah dibandingkan dengan lahan sawah tadah hujan. Porositas total pada lahan sawah irigasi memiliki porositas total lebih rendah pada kedalaman 0-20 cm dan 20-40 cm dibandingkan dengan lahan sawah tadah hujan. Rerata permeabilitas tanah pada lahan sawah irigasi kedalaman 0-20 cm lebih tinggi dengan sawah tadah hujan, dan sebaliknya pada kedalaman 20-40 cm pada lahan sawah irigasi lebih rendah dari pada lahan sawah tadah hujan. Nilai rerata C-organik tanah pada lahan sawah irigasi dan tadah hujan tergolong tinggi, sedangkan pada kedalaman 20-40 cm pada lahan sawah irigasi tergolong sedang. Nilai rerata kandungan N-total pada lahan sawah irigasi dan tadah hujan tergolong sedang, sedangkan C/N rasio pada lahan sawah irigasi dan tadah hujan tergolong kriteria rendah. Nilai rerata pH tanah pada lahan sawah irigasi dan tadah hujan yang tergolong rendah dan masam.Kata kunci : Sifat Fisika Tanah, Sawah Irigasi, Sawah Tadah Hujan
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