1,720,979 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
PENGARUH PENGGUNAAN EDIBLE COATING BERBAHAN PATI TALAS DAN KITOSAN TERHADAP KUALITAS KERUPUK BASAH KHAS KAPUAS HULU SELAMA PENYIMPANAN
Get PDFKerupuk basah merupakan makanan yang terbuat dari ikan dan tepung sagu. Daya simpan makanan tersebut sangat terbatas. Salah satu cara untuk meningkatkan daya tahan kerupuk basah yaitu menggunakan edible coating. Bahan edible coating yang digunakan pada penellitian ini yaitu pati dan kitosan. Penelitian ini bertujuan untuk menjelaskan karakteristik pati dan menjelaskan pengaruh penggunaan edible coating pati-kitosan, kitosan dan pati. Pati diperoleh dari umbi talas (Colacasia Esculenta (L) Shott) dengan kadar air, kadar abu dan kadar pati berturut-turut yaitu 13,5648%; 14,0421% dan 88,146%. Pembuatan edible coating pati-kitosan dan kitosan dilakukan dengan variasi massa kitosan 0, 1, 2, 3, 4, dan 5 gram dalam asam asetat 1% dan edible coating pati dengan variasi massa pati 0, 1, 2, 3, 4, dan 5 gram. Variabel pengujian penelitian ini yaitu massa kitosan dan lama waktu penyimpanan. Parameter analisis yang ditentukan yaitu kadar protein dan uji mikrobiologi. Analisis statistik menunjukan bahwa variasi massa kitosan dan massa pati tidak berpengaruh nyata terhadap lamanya waktu penyimpanan. Hasil penelitian menunjukan bahwa edible coating kitosan dengan massa 5 gram lebih baik dalam mempertahankan kualitas kerupuk basah selama dua hari waktu penyimpanan daripada edible coating pati-kitosan dan edible coating pati terhadap kerupuk basah. Kata Kunci : coating, edible, kerupuk basah, kitosan, pat
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Get PDFWe 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
SINTESIS KALSIUM OKSIDA DARI CANGKANG KERANG ALE-ALE (Meretrix meretrix) PADA SUHU KALSINASI 700°C
Get PDFAle-ale adalah salah satu hewan air jenis mollusca yang berasal dari Kabupaten Ketapang Kalimantan Barat. Ale-ale memiliki kandungan kalsium pada bagian cangkangnya, sehingga penelitian ini dilakukan untuk sintesis kalsium oksida dari cangkang kerang ale-ale (Meretrix meretrix) pada temperatur kalsinasi 700°C. Karakteristik kandungan yang terdapat pada cangkang kerang ale-ale dapat diketahui dengan menggunakan analisis X-Ray Fluorescence (XRF) dan X-Ray Difraction (XRD). Hasil yang ditunjukkan sebelum kalsinasi pada analisis XRF bahwa cangkang kerang memiliki kandungan kalsium terbesar dibandingkan kandungan lainnya yaitu 89,887 %. Hasil dari analisis XRD pada cangkang kerang yang telah dikalsinasi terbentuk mineral CaCO3 dan Ca(OH)2. Intensitas paling tinggi dimiliki oleh CaCO3 pada 2θ : 29,3699; 29,4602; 47,4712. Munculnya mineral Ca(OH)2 dikarenakan CaO mudah terhidrasi oleh udara dan proses pemanasan menyebabkan CaO terdispersi di dalam air membentuk slurry. Munculnya mineral CaCO3 setelah kalsinasi menunjukkan bahwa konversi CaCO3 menjadi CaO belum sempurna. Kata Kunci : Ale-ale, kalsinasi, kalsiu
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe 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
PEMBUATAN POLYBLEND DARI LIMBAH STYROFOAM DAN α-SELULOSA SERAT DAUN NANAS SEBAGAI BAHAN DASAR PLASTIK RAMAH LINGKUNGAN
Get PDFPembuatan polyblend sebagai bahan dasar plastik ramah lingkungan telah dilakukan dari limbah styrofoam dan serat daun nanas. Penelitian ini bertujuan untuk mengetahui formula terbaik dari polyblend antara limbah styrofoam dan α-selulosa serta mengetahui kemampuan terdegradasi oleh mikroorganisme dengan metode pencampuran. Campuran styrofoam-diklorometana divariasikan dengan campuran dimetil sulfoksida-α-selulosa dengan formulasi (90:10); (80:20); (70:30); (60:40). Penambahan gliserol pada setiap formulasi dilakukan untuk meningkatkan sifat mekanik dan biodegrabilitas dalam tanah. Formulasi terbaik polyblend antara limbah styrofoam dan α-selulosa yaitu 90:10. Nilai kuat tarik yang dihasilkan adalah 10,492 MPa, elongasi 10%, persentase daya serap air 14,81% serta kemampuan terdegradasi 25,225% di dalam tanah. Hasil analisis karakteristik gugus fungsi menggunakan Fourier Transform Infrared (FT-IR) menunjukkan adanya puncak baru pada styrofoam-α-selulosa pada panjang gelombang 2345,16 cm-1 yang menunjukkan gugus alkil. Puncak tersebut menandakan adanya interaksi kimiawi antara gugus fungsi dari styrofoam dan α-selulosa dari serat nanas. Kata kunci: α-selulosa, daun nanas, plastik, lingkungan, styrofoa
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