1,720,957 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

    PENGARUH MODEL CONTEXTUAL TEACHING AND LEARNING (CTL) TERHADAP KEMAMPUAN BERPIKIR KRITIS SISWA KELAS IV PADA MATERI SIFAT-SIFAT ENERGI BUNYI (Penelitian Eksperimen di Kelas IV SDN Cibeureum Mandiri 2 Kecamatan Cimahi Selatan Kota Cimahi)

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    Salah satu pembelajaran yang diajarkan di sekolah dasar adalah mata pelajaran IPA. Melalui pembelajaran IPA anak dilatih untuk berpikir secara aktif dan kritis, sehingga anak dapat mengembangkan daya cipta sejak dini terhadap alam sekitarnya. Kemampuan berpikir kritis dapat bermanfaat bagi siswa di kehidupan nyata misalnya untuk mengambil keputusan dan memecahkan masalah dalam kehidupan sehari-hari. Pembelajaran IPA yang seharusnya yaitu melibatkan siswa dalam proses pembelajaran. Selain itu guru juga harus menyertakan model pembelajaran dan praktek agar siswa lebih aktif dan lebih memahami materi yang diajarkan. Salah satu model pembelajaran yang mampu membantu siswa mengaitkan materi pembelajaran dengan kehidupan nyata yaitu Model Contextual Teaching and Learning (CTL). Melalui model pembelajaran ini siswa dapat mengalami langsung apa yang dia pelajari sehingga membantu siswa untuk mengembangkan kemampuan berpikir kritisnya. Penelitian ini termasuk penelitian eksperimen untuk mencari pengaruh model pembelajaran Contextual Teaching and Learning (CTL) terhadap kemampuan berpikir kritis siswa pada materi sifat-sifat energi bunyi. Desain yang digunakan dalam penelitian ini yaitu true experimental design. Bentuk design yang digunakan adalah pretest-posttest control group design. Populasi pada penelitian ini adalah seluruh siswa kelas IV SDN Cibeureum Mandiri 2 yang berjumlah 120 orang, sedangkan penentuan sampel dilakukan dengan menggunakan teknik simple random sampling. Sampel yang digunakan berjumlah 60 orang, terdiri dari kelas IV C sebagai kelas eksperimen yang berjumlah 30 orang dan kelas IV A sebagai kelompok kontrol yang berjumlah 30 orang. Pada kelompok eksperimen diberi perlakuan dengan menggunakan model pembelajaran Contextual Teaching and Learning (CTL) sedangkan pada kelompok kontrol diberi perlakuan melalui pembelajaran konvensional. Hal ini dilakukan untuk mengetahui kemampuan berpikir kritis pada kedua kelompok dan perbedaan kemampuan berpikir kritis antara kelompok eksperimen dan kelompok kontrol. Berdasarkan hasil penelitian dapat ditarik kesimpulan bahwa terdapat pengaruh model Contextual Teaching and Learning (CTL) terhadap kemampuan berpikir kritis siswa kelas IV pada materi sifat-sifat energi bunyi secara signifikan. Dari perbedaan data posttest kelompok eksperimen dan kelompok kontrol menunjukkan nilai signifikansi sebesar 0,043. Jadi, dapat disimpulkan terdapat perbedaan peningkatan kemampuan berpikir kritis pada siswa di kelompok eksperimen dan kelompok kontrol. Penggunaan model Contextual Teaching and Learning (CTL) di kelas eksperimen pada materi sifat-sifat energi bunyi lebih baik secara signifikan dibandingkan kelas kontrol

    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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