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    Peningkatan Hasil Belajar Pecahan Senilai Siswa Menggunakan Permainan Domino Pecahan Kelas VII SMPN 4 Kaubun

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    Penelitian ini  dilakukan untuk mengetahui peningkatan hasil belajar siswa pada materi pecahan senilai dengan menggunakan permainan domino pecahan yang dilaksanakan pada tahun  2014 di  SMP Negeri 4 Kaubun.  Subjek penelitian adalah siswa kelas VIIA sebanyank 20 siswa dengan menggunakan permainan domino pecahan sebagai obyek penelitian. Penelitian dilakukan dalam dua siklus yang terbagi dalam enam kali pertemuan dengan rincian siklus pertama tiga kali pertemuan, dan siklus kedua dengan tiga kali pertemuan. Instrumen yang digunakan untuk mengumpulkan data adalah bagan pertandingan, lembar pengamatan permainan domino, lembar soal dan dokumentasi. Dari hasil penelitian diketahui bahwa nilai minimum pada siklus pertama 50 meningkat menjadi 70 pada siklus kedua, nilai maksimum pada siklus pertama 80 meningkat menjadi 100 pada siklus kedua, nilai rata-rata sebesar 70,5 pada siklus pertama meningkat menjadi 88,5 pada siklus kedua. Sementara itu pada nilai N-Gain diketahui bahwa peningkatan sedang terjadi pada 70% siswa dan peningkatan tinggi terjadi pada 30% siswa

    Meningkatkan Keterampilan Komunikasi Lisan dan Hasil Belajar Bangun Ruang Sisi Lengkung Menggunakan Model Disco

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    Penelitian ini  adalah penelitian tindakan kelas yang bertujuan untuk mengetahui peningkatan keterampilan komunikasi lisan dan hasil belajar siswa pada materi bangun ruang sisi lengkung dengan menggunakan model pembelajaran disco. Penelitian ini dilaksanakan di  SMP Negeri 4 Kaubun  Tahun  Pembelajaran 2018/2019 dengan subjek penelitian siswa kelas IXA dan obyek penelitian ini adalah pembelajaran menggunakan model disco yang dilaksanakan dalam enam kali pertemuan pembelajaran, terbagi dalam tiga siklus, yaitu siklus I dua kali, siklus II, dua kali pertemuan dan siklus III dua kali pertemuan. Instrumen pengumpulan data berupa lembar observasi keterampilan komunikasi lisan, format penilaian, soal dan dokumentasi. Hasil penelitian menunjukkan bahwa terjadi peningkatan keterampilan komunikasi lisan dari 3% siswa yang berkomunikasi lisan kurang baik pada siklus I menjadi 0% siswa pada siklus III dan 67% siswa yang dapat berkomunikasi lisan dengan baik pada siklus I menjadi 3% pada siklus III,  serta 22% siswa yang berkomunikasi lisan sangat baik pada siklus I meningkat menjadi 97% pada siklus III atau meningkat 75%. Sementara itu nilai hasil belajar siswa menunjukkan bahwa 70% siswa mengalami peningkatan nilai  yang sedang dan 30% siswa mengalami peningkatan nilai yang tinggi

    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
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