1,720,956 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
White Turmeric Rhizome Protection Effect of against Lung Tissue Damage in Copper Sulfate-Induced Wistar Rats
Get PDFOne of common heavy metals that pollute rivers in Indonesia is copper, which can damage various organs, including the lungs. As a potential natural herbal medicine, white turmeric rhizome has antioxidant properties that potentially protect the body from copper pollution. This study aimed to explore the potential of the white turmeric rhizome (Curcuma zedoaria) to provide a protective effect on the lungs against copper contamination. This study was an experimental study performed in June 2020 on 25 copper-induced Wistar rats which were divided into five groups: negative group that received 1 ml of copper sulfate suspension at the 12th to 14th day; positive group that received 10 mg/200 g BW of ethanol extract from white turmeric without copper sulfate suspension; and three experimental groups that received 10 mg/200 gBW, 20 mg/200 gBW, and 40 mg/200 gBW of ethanol extract from white turmeric every day, respectively, followed by copper sulfate suspension at the 12th–14th day. After 14 days, the rats were sacrificed by chloroform inhalation and the lung was excised and processed for histopathology preparation. The edema, hemorrhage, leukocyte infiltration, and alveolar septal thickness were evaluated from the lung tissue perparation. The score of tissue damage was express as median (Range) and analyzed using the Kruskal-Wallis test. The result of this study shows that there was a significant difference in lung tissue score among all groups of treatment (p-Value=0.001). The experimental group with highest dosage extract presented a good protection effect as well as the positive group. Hence, white turmeric has a good protective property for the lung against damages caused by copper contamination
PENGARUH PEMBERIAN GEL EKSTRAK KULIT KAYU MANIS (CINNAMOMUM BURMANNII) DALAM MENINGKATKAN KOLAGEN PADA TIKUS PUTIH JANTAN GALUR WISTAR YANG MENGALAMI LUKA BAKAR
Get PDFTubuh manusia adalah mesin biologis yang terbuat dari sistem tubuh; kelompok organ yang bekerja sama untuk menghasilkan dan mempertahankan kehidupan. Sistem integumen adalah sekumpulan organ yang membentuk lapisan luar tubuh. Sistem ini meliputi kulit, pelengkap kulit, kelenjar keringat, dan reseptor sensorik. Kulit terbagi menjadi tiga lapisan, epidermis, dermis, dan hypodermis. Lapisan epidermis merupakan lapisan terluar kulit. Sel utamanya adalah keratinosit (95% dari sel). Melanosit, sel Langerhans, dan sel Merkel merupakan 5% sisanya. Tujuan penelitian in iuntuk menguji dan menganalisis pengaruh pemberian gel ekstrak kulit kayu manis (Cinnamomum burmannii) dalam meningkatkan kolagen pada tikus putih (Rattus norvegicus) jantan galur wistar yang mengalami luka bakar. Penelitian ini menggunakan post-test only control group design untuk mengetahui dan menganalisis efek pemberian ekstrak kulit kayu manis dalam mempercepat penyembuhan luka dan meningkatkan kolagen pada tikus putih (Rattus norvegicus) galur wistar yang mengalami luka bakar. Ekstrak kulit kayu manis mengandung senyawa fitokimia yaitu flavonoid, saponin, tannin, alkaloid, dan triterpenoid yang memiliki efek antioksidan, antimikroba, dan antiinflamasi dan berperan pada proses penyembuhan luka bakar dan kolagenisasi. Krim ekstrak kulit kayu manis dengan konsentrasi 10% paling efektif dalam mempercepat penyembuhan luka, yaitu dalam 12 hari. Hasil pengamatan gambaran histopatologi jaringan kulit menunjukkan kelompok perlakuan 3 dengan pemberian krim ekstrak kulit kayu manis dengan konsentrasi 10% memiliki kepadatan kolagen yang masuk dalam kategori rapat
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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