1,720,960 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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 linkWe 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
Antibacterial Effectiveness Test of Mulberry Leaf Extract (Mours Alba .L)Against Propionibacterium Acnes Using Agar Diffusion Method
Full text linkPropionibacterium acnes bacteria are gram-positive bacteria that cause acne. This study aims to determine the antibacterial activity of mulberry leaf extract (Mours Alba L) against Propionibacterium acnes bacteria using the agar diffusion test method. Based on the results of phytochemical screening of mulberry leaf powder containing flavonoids, saponins, tannins, steroids, and triterpenoids which function as antibacterials. Based on the antibacterial activity test, mulberry leaf extract at concentrations of 20%, 30%, 40%, and 50% is effective in inhibiting the growth of Propionibacterium acnes bacteria. This can be proven from the results of the inhibition zone diameter, there is an increase in antibacterial effectiveness. Along with the increase in the concentration of mulberry leaf extract in inhibiting the growth of Propionibacterium acnes bacteria , namely at a concentration of 20%, the average diameter of the inhibition zone was 11.94 mm, then at a concentration of 30% the average diameter of the inhibition zone was 13.3 mm at a concentration of 40% the average diameter of the inhibition zone was 12.5 mm and at a maximum concentration of 50% the average diameter of the inhibition zone was 11.84 mm. The results of the study concluded that the most effective mulberry leaf extract inhibited the growth of Propionibacterium acnes bacteria at a concentration of 30% with a strong category
PENGARUH PEMBERIAN REBUSAN DAUN KERSEN TERHADAP PENURUNAN KADAR GULA DARAH PADA PASIEN DIABETES MELLITUS DI DESA KATERBAN KABUPATEN TUBAN
Full text linkGaya hidup yang tidak sehat salah satunya makan makanan tinggi gula merupakan salah satu faktor penyebab diabetes mellitus. Penderita DM dapat terjadi komplikasi jika tidak dikelola dengan bagus. Salah satu terapi non farmakologi dengan daun kersen yang mengandung senyawa flavonoid dan saponin yang berfungsi untuk menyekresi hormon insulin sehingga bisa menurunkan kadar gula darah. Tujuannya ialah menganalisis pengaruh pemberian rebusan daun kersen terhadap penurunan kadar gula darah pada pasien diabetes mellitus di Desa Katerban Kabupaten Tuban. Desain penelitian yang digunakan pre-experimental dengan pendekatan one-group pretest-posttest design. Populasi dan sampel semua yang terkena diabetes mellitus di Desa Katerban Kabupaten Tuban sejumlah 30 orang diambil dengan teknik total sampling,. Instrumennya alat ukur GDA dan checklist, uji statistiknya dengan Uji Wilcoxon. Dari 30 responden sebagian besar mempunyai kadar GDA kategori diabetes (≥200 mg/dL) sejumlah 17 responden (56,7%) sebelum pemberian rebusan daun kersen. Sedangkan sesudah diberikan rebusan daun kersen sebagian besar mendapatkan kadar GDA kategori pra diabetes 140-199 mg/dL) sebanyak 19 responden (63,4%). Hasil uji statistik wilcoxon diperoleh ρ = 0,000 maka H1 diterima bermakna ada pengaruh pemberian rebusan daun kersen terhadap penurunan kadar gula darah pada pasien diabetes mellitus. Kesimpulan ini, ada pengaruh pemberian rebusan daun kersen terhadap penurunan kadar gula darah pada pasien diabetes mellitus di Desa Katerban Kecamatan Senori Kabupaten Tuban. Hasil penelitian ini bisa berikan pengetahuan kepada masyarakat untuk minum rebusan daun kersen secara rutin agar kadar gula darah turun
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
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