1,721,232 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
Pertumbuhan dan Produksi Rumput Setaria (Setaria splendida Stapf) sebagai Pakan Ternak Ruminansia pada Tanah Ultisol dengan Penambahan Pupuk Kotoran Kambing
Get PDFSuningsih N, Noprida H, Feriyanto F. 2019. Growth and production of setaria splendida grass in ultisol soils with the addition of goat manure. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal 2019, Palembang 4-5 September 2019. pp. 201-210. Palembang: Unsri Press. Setaria grass is one of the superior types of grass for Ruminants which has not been widely cultivated due to limited planting land. The purpose of this study was to determine the growth and first production of Setaria grass planted on ultisol soil with the addition of Goat Manure Fertilizer (GMF). The study design used a Randomized Block Design (RBD) consisting of 6 treatments and 4 replications. The treatment is S0 = Ultisol Land, S1 = S0 + GMF 100 g/Polybag, S2 = S0 + GMF 150 g/Polybag, S3 = S0 + GMF 200 g/Polybag, S4 = S0 + GMF 250 g/Polybag, and S5 = S0 + GMF 300 g/Polybag. The variables observed were Plant Height, Number of Tiller, Fresh Weight, and Dry Weight. The data obtained were analyzed for variance (ANOVA) and further tests were carried out using the DMRT Advanced Test. The results showed that the treatment of GMF addition on Ultisol soil had a very significant effect (P <0.01) on Setaria grass height, Number of tillers, Fresh weight production, and Production of dry weight. Advanced Test Results DMRT shows the highest Setaria grass shown by S5 treatment (85.58 cm), the highest number of tillers indicated by treatment S5 (20.42 tillers), the heaviest fresh weight of Setaria grass shown by S5 (225.33 g), and weight the heaviest dryness is also indicated by S5 (46.50 g). The conclusion of this study is that the growth and production of Setaria grass planted on Ultisol soil significantly increased with the increasing dose of goat manure fertilizer.Keywords: growth, production, goat manure fertilizer, setaria grass, ultisol lan
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
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