1,720,966 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
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
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
Kajian kalor reaksi tembaga sulfat (CuSO4.5H2O) melalui prototipe kalorimeter
Get PDFDetermination of dissolution heat reaction of copper sulfate hydrate, CuSO4.5H2O and copper sulfate anhydrous, CuSO4 using a calorimeter prototype was carried out. The initial stage is carried out by measuring the calorimeter constant and then measuring the heat of copper sulphate dissolution using Hess's Law to determine the heat of reaction indirectly. The results obtained by the dissolution reaction reaction of copper sulfate CuSO4.5H2O and copper sulfate anhydrous CuSO4 respectively were 723,318 J and 748,26 J.
Telah dilakukan penentuan kalor pelarutan reaksi tembaga sulfat hidrat, CuSO4.5H2O dan tembaga sulfat anhidrat, CuSO4 dengan menggunakan prototype kalorimeter. Tahap awal dilakukan dengan pengukuran tetapan kalorimeter dan dilanjutkan pengukuran kalor pelarutan tembaga sulfat menggunakan Hukum Hess untuk menentukan kalor reaksi secara tak langsung. Hasil yang diperoleh nilai kalor pelarutan reaksi tembaga sulfat CuSO4.5H2O dan tembaga sulfat anhidrat CuSO4 masing-masing berturut-turut sebesar 723,318 J dan 748,26 J
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Screening Senyawa Pandu Inhibitor Endositosis dengan Metode Molecular Modelling
Get PDFThe purpose of this research is to search for compound inhibitor endocytosis by using Molecular Modeling program. Screening is performed on approximately 800,000 compounds derived from several commercial companies. From the results of virtual screening obtained 320 hits, and of this number only 175 compounds that can be obtained to test its biological activity. Biological tests showed that there were 7 compounds with moderate endocytosis inhibition capability (IC50 = 50-170 μM) to good inhibition (IC50 <50 μM). The compounds are: compound 1 (IC50 = 42 ± 4 μM), compound 2 (IC50 = 83 ± 8 μM), compound 3 (IC50 = 135 ± 58 μM), compound 4 (IC50 = 151 ± 18 μM) compound 5 (IC50 = 144 ± 18 μM), compound 6 (IC50 = 13 ± 4 μM), and compound 7 (IC50 ~ 170 μM).Tujuan dari penelitian ini adalah untuk mencari senyawa pandu inhibitor endositosis dengan menggunakan program Molecular Modelling. Screening dilakukan terhadap kurang lebih 800.000 senyawa yang berasal dari beberapa perusahaan komersil. Dari hasil virtual screening didapatkan 320 hits, dan dari jumlah ini hanya 175 senyawa yang bisa didapatkan untuk diuji keaktifan biologisnya. Uji biologis menunjukkan terdapat 7 senyawa dengan kemampuan inhibisi endositosis yang moderat (IC50 = 50 – 170 µM) sampai kemampuan inhibisi yang baik (IC50 < 50 µM). Senyawa-senyawa tersebut adalah : senyawa 1 (IC50 = 42 ± 4 µM), senyawa 2 (IC50 = 83 ± 8 µM), senyawa 3 (IC50 = 135 ± 58 µM), senyawa 4 (IC50 = 151 ± 18 µM), senyawa 5 (IC50 = 144 ± 18 µM), senyawa 6 (IC50 = 13 ± 4 µM), dan senyawa 7 (IC50 ~ 170 µM)
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