1,720,983 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
Profil Fermentasi “Rusip” yang Dibuat dari Ikan Teri (Stolephorus sp)
No full textThe objective of this research was to study rusip characteristic of anchovies (Stolephorus sp.) during fermentation to dig its fermentation profile up. The experiment was conducted in 3 replications and onserved periodically: 0, 4, 8, 12, 16, 20, days. The lactic acid fermentation was observed in rusip as indicated by lactic acid bacteria presence during fermentation. Throughout 20 days fermentation, the moisture content, total lactic acid, TVN, TMA, and soluble protein increased while the pH, fat, and reducing sugar contents decreased. CHemical profile of rusip at day 20 fermemtation was characterized by pH 5.07; 22.20% total lactic acid, 1.5% fat. 82.34 mg N/100 g TVN; 14.9% mg N/100g TMA; 3.68% reducing sugar, and 6.36% soluble protein.ABTRAKTujuan penelitian ini adalah untuk mempelajari karakteristik rusip dari ikan teri selama fermentasi untuk mendapatkan profil fermentasi rusip. Percobaan dilakukan sebanyak tiga kali yang diamati secara priodik pada hari ke 0, 4, 8, 12, 16, dan 20 hari. Fermentasi rusip merupakan fermentasi asam laktat yang diindikasikan oleh keberadaan bakteri asam laktat selama fermentasi. Selama 20 hari fermentasi, kandungan air, total asam laktat, TVN, TMA dan protein terlarut meningkat sementara pH, lemak dan gula reduksi menurun. Profil kimia rusip pada hari ke 20 fermentasi adalah sebagai berikut, pH 5,07; total asam laktat 22,20%; lemak 1,5%; TVN 82,34 mgN/100 g; TMA mg N/100 g; gula reduksi 3,68% dan protein terlarut 6m36%
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
Organic acids component of Tempoyak
No full textThis study was mainly conducted to identify the of organic acids component of tempoyak. Acidity and pH changes during fermentation process of fermented tempoyak were also evaluated. The results revealed that there were significant changes in pH ranging from 7 to 4 and acidity (6 mg/g- 38 mg/g) attributed to organic acids present in tempoyak. These organic acids were malic acid (145,9 mg/ml), followed by lactic acid (34,1 mg/ml), and small amount of acetic acid (14,2mg/ml). Key words: Tempoyak; organic acids; pH and acidit
Perubahan Karakteristik Biokimia Fermentasi Tempoyak Menggunakan Pediococcus acidilactici pada Tiga Tingkat Konsentrasi Gula
Get PDFThis study was carried out to evaluate the biochemical characteristics of tempoyak inoculated with Pediococcus acidilactici as starter culture at three levels of sugar concentrations (0%, 2.5% and 5%). Results revealed that addition of sugar until 5 % did not influenced the microbe total, pH, acidity and reducing sugar of tempoyak. The length of fermentation mostly influenced these characterisitics. Nevertheles, number of individual organic acid expressed as lactic and acetic acid was influenced by addition of sugar.ABSTRAKPenelitian ini bertujuan untuk mengevaluasi perubahan karakterisitik biokimia fermentasi tempoyak dengan Pediococcus acidilactici sebagai kultur starter pada tiga tingkat konsentrasi gula (0%; 2,5% dan 5%). Hasil penelitian menunjukkan bahwa penambahan konsentrasi gula sampai dengan 5% belum mempengaruhi perubahan karakterisitk biokimia tempoyak (pH, total asam, total gula reduksi). Namun demikian konsentrasi gula berpengaruh terhadap total individu komponen asam organik (asam laktat dan asam asetat). Sebaliknya, perubahan karakterisitik biokimia (pH, total asam, total gula reduksi) tempoyak sangat dipengaruhi oleh lama fermentasi, yaitu semakin lama fermentasi, pH dan gula reduksi semakin menurun, sedangkan total asam meningkat
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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