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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
Potensi Ekstrak Daun Jambu Batu (Psidium Guajava) dalam Memperkecil Perombakan Protein Kasar Makanan oleh Mikroba Rumen
No full textFormaldehyde is commonly used to minimize ruminal degradation of feed protein to ammonium. Its use however, could cause overprotection. An in vitro trial was designed to compare aquous extracts of Psidium guajava leaves, known to contain tannic acid, with formaldehyde solution in affecting ammoniogenesis, fermentability, anddigestibility. Peanut oil meal containing 34.9% crude protein was subjected to 7treatments: A= untreated, B=5%, C=10%, D=15% (W/V) Psidium leaf extract, E=0.5%, F=1.0%, and G=1.5% (W/V) formaldehyde solution. The treatment were applied prior to the ruminal fermentation at 2 ml/g peanut oil meal.Ammoniogenesis was significantly reduced by the formaldehydeolution to lesser extent also by the leaf extracts (A vs BCD vs EFG=6.21 vs 5.16 vs 3.23 mM ammonia/hr). The 15% leaf extracts, the 1.0% and the 1.5% formaldehyde lowered fermentability of organic matter (Avs D vs FG=18.2 vs 11.6 vs 7.27 mM VFA/hr). Allformaldehyde solution reduce either the dry matter (IVDMD) or the organic matter (IVOMD) digestibility (IVDMD : A=62.1% vs EFG=47.6%). The digestibility wasn\u27t dramatically reduced by the leaf extracttreatments (IVDMD : A=62.1% vs CD=50.1%; IVOMD:A=58.8% vs D=46.2%). The mild effects of psidium leaf extractseventually. lead to more precipitable protein (microbial dietary/origin) (A=10.4% vs BCD =12.1% vs EFG=10.6%, suggesting that the extract has a potential to present more protein to the lower G.I. tract
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
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
Manipulasi komposisi asam lemak susu Bernilai farmakologis melalui suplementasi sabun mineral dalam ransum berbasis serat kasar tinggi pada sapi perah
No full textTernak ruminansia memiliki keistimewaan dan sekaligus kelemahan karena sistem pencernaannya. Rumen adalah bagian terbesar dari sistem pencernaan ternak ruminansia. Sistem pencernaan di rumen melibatkan interaksi dinamis antar pakan, populasi mikrob, dan ternak itu sendiri. Pakan yang masuk ke dalam sistem pencernaan dan masuk ke dalam rumen akan dirombak atau didegradasi terlebih dahulu sebelum diserap dirumen atau diteruskan ke pascarumen dan diserap diusus. Keunikan tersebut akan menjadi kelemahan karena protein dan lemak pun akan dirombak didalam rumen. Pada ternak ruminansia dewasa semua lemak pakan yang dikonsumsi akan dihidrolisis menjadi asam lemak bebas dan gliserol, dan asam lemak tidak jenuhnya dihidrogenasi sehingga lemak yang masuk ke dalam usus halus berupa asam lemak jenuh dan monogliserida Sementara itu, upaya peningkatan produksi dan kualitas susu sapi perah dibatasi oleh kuantitas dan kualitas pakan baik makronutrien maupun mikronutrien. Daya dukung lingkungan yang rendah menyebabkan masalah pakan semakin parah. Lahan yang kehilangan vegetasi dan resapan air menyebabkan terjadinya distorsi status mineral. Mineral esensial semakin berkurang (defisien) sementara logam berat menjadi toksik pada tanah, tanaman dan juga kemungkinan pada ternak
Manipulasi komposisi asam lemak susu Bernilai farmakologis melalui suplementasi sabun mineral dalam ransum berbasis serat kasar tinggi pada sapi perah
Get PDFTernak ruminansia memiliki keistimewaan dan sekaligus kelemahan karena sistem pencernaannya. Rumen adalah bagian terbesar dari sistem pencernaan ternak ruminansia. Sistem pencernaan di rumen melibatkan interaksi dinamis antar pakan, populasi mikrob, dan ternak itu sendiri. Pakan yang masuk ke dalam sistem pencernaan dan masuk ke dalam rumen akan dirombak atau didegradasi terlebih dahulu sebelum diserap dirumen atau diteruskan ke pascarumen dan diserap diusus. Keunikan tersebut akan menjadi kelemahan karena protein dan lemak pun akan dirombak didalam rumen. Pada ternak ruminansia dewasa semua lemak pakan yang dikonsumsi akan dihidrolisis menjadi asam lemak bebas dan gliserol, dan asam lemak tidak jenuhnya dihidrogenasi sehingga lemak yang masuk ke dalam usus halus berupa asam lemak jenuh dan monogliserid
Pengaruh Kromium dalam Pakan terhadap Kadar Glukosa Darah, Kuosien Respiratori, Ekskresi NH3-N, dan Pertumbuhan lkan Gurami
No full textDispelling 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
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