1,720,977 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

    EVALUASI PERHITUNGAN KAPASITAS JALAN MAUL ANA YUSUF DENGAN MENGGUNAKAN METODE MANUAL KAPASITAS JALAN INDONESIA (MKJI)

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    Jalan memiliki perananan penting dalam melakukan kegiatan atau aktifitassehari-hari dalam berkendara, karena dengan adanya jalan suatu daerah dapat terbantudari segi perkembangan ekonomi, perkembangan sosial serta dapat menggunakan waktusecara efektif dan efisien. Namun berkembangnya suatu zaman membuat banyakpermasalahan pada suatu jalan salah satunya jalan Maulana Yusuf. Jalan Maulana Yusufyang terletak di kelurahan Babakan kecamatan Tangerang Kota Tangerang, persis didepankampus Universitas Islam syekh Yusuf Tangerang. Jalan dengan panjang 375 meter ini yangmenghubungnkan Jalan Perintis Kemerdekaan menuju Jalan Veteran ini terdiri dari duajalur dengan sistem satu arah. Jalan kota dengan sistem jaringan sekunder yangmenghubungkan antar pusat pelayanan kota dan masuk kategori jalan Kelas III C. Jalandengan lebar 7,5 meter serta trotoar di masing- masing sisi 1 meter ini memiliki banyakmasalah salah satunya kepadatan lalu lintas dari berbagai faktor, diantaranya banyaknyadebit kendaraan terutama pada jam sibuk, posisi kampus yang mengahambat keluar masukkendaraan, pedagang kaki lima, penyebrang jalan, serta parkir kendaraan. Daripermasalahan diatas penulis melakukan penelitian di jalan Maulana Yusuf. Penelitian inidilakukan selama 10 (sepuluh) hari dengan jam-jam tertentu. Perbandingan volumekendaraan dimulai hari senin sampai minggu sangat terlihat padat pada hari kerja yaituhari senin sampai hari jumat. Sedangkan hari sabtu dan minggu terlihat volume kendaraanberkurang, apalagi adanya kegiatan Car Free Day. Kecepatan rata – rata kendaraan ringandidapat yaitu 28,81 km/jam. Sedangkan untuk kendaraan sepeda motor didapat 32,39km/jam dengan kapasitas jalan 2321 SMP/jam.Kata kunci : Kapasitas jalan, tingkat pelayanan, kinerja , jumlah pengguna jalan

    Pengaruh Kosentrasi Ekstrak Serai dan Lama Waktu Kontak Terhadap Mortalitas Keong Mas Dari Persawahan Desa Tegal Kunir Kidul, Kecamatan Mauk, Kabupaten Tangerang

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    Tanaman padi merupakan salah satu komoditas pangan yang harus terpenuhi kecukupannya untuk menunjang kelangsungan hidup sebagian besar penduduk Indonesia. Dalam rangka peningkatan produktivitas tanaman padi salah satu faktor penghambatnya adalah adanya organisme pengganggu tanaman yang menyerang tanaman padi adalah keong mas. Teknologi pengendalian hama keong mas yang ramah lingkungan adalah penggunaan ekstrak serai karena tanaman serai mempunyai senyawa aktif sitronela yang dapat membunuh keong mas. Tujuan dari penelitian ini untuk mengetahui pengaruh kosentrasi ekstrak serai dan lama waktu kontak terhadap mortalitas keong mas. Penelitian dilakukan melalui tiga tahap yaitu penyediaan ekstrak serai, pengumpulan keong mas dan pengujian aktivitas moluskasida menggunakan ekstrak sereh dengan konsentrasi 0%, 15%, 25% dan 50% pada populasi keong mas dan dilakukan pengamatan setiap empat jam selama 24 jam. Hasil penelitian menunjukkan bahwa ekstrak sereh dapat membunuh keong mas dan hasil terbaik adalah kosentrasi 50% dan waktu kontak 24 jam. Pada konsentrasi ini seluruh keong mas sudah mati, mengeluarkan banyak lendir, warna cangkang sudah memudar dan rapuh serta tubuh keluar dari cangkangnya

    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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