1,720,957 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 Pakan Suplementasi Spirulina platensis dan Chlorella vulgaris terhadap Pertumbuhan dan Komposisi Tubuh Ikan Gurami (Osphronemus gouramy)
Get PDFGurami adalah ikan air tawar yang mudah terinfeksi penyakit terutama pada cuaca dingin dan curah hujan tinggi, sehingga perlu dicari solusi untuk penanggulangannya. Ikan gurami merupakan ikan yang ukuran tubuhnya dapat mencapai 5 kg. Penelitian tentang suplementasi S. platensis dan C. vulgaris dengan dosis 6 g/kg pakan telah dilakukan pada ikan gurami (Osphronemus gouramy Lac.). Penelitian bertujuan mengetahui pertumbuhan dan komposisi tubuh ikan gurami yang diberi pakan suplementasi S. platensis, C. vulgaris dan campuran S. platensis + C. vulgaris serta mendapatkan komposisi pakan terbaik meningkatkan pertumbuhan dan komposisi tubuh ikan gurami. Penelitian ini dilakukan secara eksperimental dengan enam perlakuan dan tiap perlakuan diulang tiga kali. Perlakuan yang dicobakan dalam penelitian ini adalah: K = ikan gurami diberi pakan Tubifex sp., Daphnia sp. dan pelet komersial; P1 = ikan gurami diberi pakan suplementasi S. platensis dan Tubifex sp.; P2 = ikan gurami diberi pakan suplementasi S. platensis dan Daphnia sp.; P3 = ikan gurami diberi pakan suplementasi C. vulgaris dan Tubifex sp.; P4 = ikan gurami diberi pakan suplementasi C. vulgaris dan Daphnia sp., P5 = ikan gurami diberi pakan suplementasi campuran S. platensis + C. vulgaris, Tubifex sp. dan Daphnia sp. Penelitian dilakukan selama 112 hari dan ikan diberi pakan dua kali sehari. Hasil penelitian menunjukkan bahwa perbedaan komposisi pakan dapat meningkatkan pertumbuhan dan komposisi tubuh ikan gurami serta perlakuan P1 yaitu pakan suplementasi S. platensis dan Tubifex sp. terbaik dalam meningkatkan pertumbuhan dan komposisi tubuh ikan gurami. Penelitian ini menemukan bahwa untuk budidaya gurami sebaiknya ikan gurami diberi pakan suplementasi S. platensis atau C. vulgaris
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
Stimulation of Deprivation Cycles with Spirulina platensis Feed Supplementation on Osphronemus gouramy Physiological Responses
Get PDFSpirulina platensis is a phytoplankton, the cell wall composed of complex sugars so easily digested by fish. The present study was carried out to investigate stimulation cycle of feed deprivation with feed supplemented S. platensis the best to increase growth, hematological and body composition of gurami (Osphronemus gouramy). Groups of 24 fish, each in triplicate, were exposed to four different treatment for a period of 56 days. Sample measurements of growth done every 14 days, hematological and body composition measurements carried out at the end of the experiment. Growth was significantly different between stimulation cycle of feed deprivation and the control (P<0.05). Conclusions result showed that stimulation cycles of feed deprivation could not improve growth and hematological, but could improve body composition. Feed deprivation is done to reduce the cost of production, high production costs due to high feed prices. During research on feed deprivation is done by giving commercial feed, this study is to provide feed supplementation S. platensis. Thus, the results of this study can be useful for science as S. platensis information can be used as a food supplement and and for the people cultivating gurami should be fed daily supplementation of S. platensis.How to CiteSimanjuntak, S. B. I., Wibowo, E. S. & Indarmawan, I. (2016). Stimulation of Deprivation Cycles with Spirulina platensis Feed Supplementation on Osphronemus gouramy Physiological Responses. Biosaintifika: Journal of Biology & Biology Education, 8(3), 378-385. </p
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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