1,720,960 research outputs found

    Going Beyond Counting First Authors in Author Co-citation Analysis

    Full text link
    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

    Full text link
    “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

    Full text link
    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

    KAJIAN GEOMETRI PELEDAKAN UNTUK MENGOPTIMALKAN HASIL FRAGMENTASI BATU ANDESIT DI PT. BUKIT LABU MINING KABUPATEN SINTANG PROVINSI KALIMANTAN BARAT

    Full text link
    ABSTRAK PT. Bukit Labu Mining adalah perusahaan pertambangan batu di Kabupaten Sintang, Provinsi Kalimantan Barat. Sistem penambangan secara tambang terbuka dengan metode quarry. Tujuan penelitian ini untuk mendapatkan hasil fragmentasi ideal batuan dengan tingkat boulder yaitu ukuran batuan besar dari 50 cm kurang dari 20 % dari hasil peledakan. Perhitungan fragmentasi dilakukan dengan 2 cara yaitu secara secara teoritis dengan persamaan kuznetsov-rossin ramler dan aktual menggunakan image analysis analisa software split desktop 4.0. Rancangan geometri peledakan usulan dibuat dengan perbandingan 2 metode yaitu Rl. ash dan Ici Explosive. Perhitungan Fragmentasi batuan hasil peledakan aktual di analisa secara teoritis dengan metode Kuz-Ram tingkat boulder sebesar 22,27%, sedangkan hasil perhitungan aktual dengan metode split desktop 4.0 tingkat boulder sebesar 29,56%. Hasil fragmentasi aktual menunjukan boulder belum sesuai yang diharapkan oleh perusahaan. Berdasarkan design hasil Perancangan geometri usulan dengan metode ICI Explosive usulan ke 3 menghasilkan fragmentasi boulder sebesar 20,00 % dan menghabiskan biaya sebesar Rp 155.638.854 sehingga layak diterapkan pada perusahaan. Kata Kunci: Boulder, Fragmentasi, Geometri, Kuz-Ram, Split Deskto

    ESTIMASI SUMBERDAYA BATU GRANIT MENGGUNAKAN METODE CROSS SECTION DI CV. MITRA ANUGERAH PENIRAMAN KABUPATEN MEMPAWAH PROVINSI KALIMANTAN BARAT

    Full text link
    CV. Mitra Anugerah Peniraman adalah satu dari banyak perusahaan yang bergerak dalam industri pertambangan. Lokasi penelitian ini berada di Desa Peniraman Kecamatan Sungai Pinyuh Kabupaten Mempawah Kalimantan Barat. Saat ini perusahaan sedang dalam tahap eksplorasi dengan bahan galian batu granit. Maka diperlukannya dilakukan perhitungan sumberdaya batu granit agar dapat dilakukan proses penambangan. Penelitian ini menggunakan metode cross section sebagai metode perhitungan sumber daya. Pengumpulan data yang digunakan untuk perhitungan terdapat 2 data yaitu data primer (data koordinat x ,y ,z menggunakan GPS dan ketebalan tanah penutup) dan data sekunder (data topografi, peta regional lembar Singkawang), selanjutnya melakukan perhitungan menggunakan rumus mean area dengan software microsoft excel sebagai alat bantu. Hasil perhitungan volume tanah penutup pada penelitian ini memperlihatkan bahwa volume terbanyak pada perhitungan luas penampang C-C’ dan luas penampang D-D’ yaitu sebesar 12.021 m3 sedangkan untuk volume terkecilnya pada perhitungan luas penampang B-B’ dan luas penampang C-C’ dengan volume sebanyak 8.566 m3 dan hasil perhitungan volume tanah penutup di area penelitian didapatkan sebanyak 41.981 m3 . Sedangkan untuk sumberdaya batu granit tertinggi adalah pada sayatan B-B’ sebesar 11.900 m2 untuk luas sumberdaya batu granit terkecil terdapat pada sayatan E-E’ sebesar 10.339 m2 dan didapatkan total estimasi sumberdaya batu granit sebesar 2.300.131 m3

    Dispelling the Myths Behind First-author Citation Counts

    Full text link
    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

    No full text
    Nao informado

    koamabayili/VECTRON-author-checklist: VECTRON author checklist

    No full text
    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
    corecore