1,721,779 research outputs found
L’iscrizione funeraria attica IG II2 12092 ritrovata
Get PDFPubblicazione di un'iscrizione (IG II2 12092) nota da un apografo di Fauvel attualmente conservata nel magazzino di Thrasyllou od., Atene
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
Some Characteristics and Isolation of Novel Thermostable beta-Galactosidase from Thermus oshimai DSM 12092
No full textThe beta-galactosidases belong to the class of hydrolytic enzymes and have been used as lactose hyrolysis. The enzyme is used in reducing lactose milk production, an outstanding industrial product used by a large lactose-intolerant population. This is the first detailed report of some characteristics of beta-galactosidase and the gene encoding beta-galactosidase in Thermus oshimai DSM 12092. The growth rate (mu, 1/h), and the doubling time (t(D), h) for T. oshimai grown both in shaking flasks and in a bioreactor were determined. The optimal temperature and pH for beta-galactosidase were determined as 75 degrees C and 7.4, respectively. This enzyme was thermostable and was retained by more than 70% at 90 degrees C for 3 h. The beta-galactosidase from T. oshimai DSM 12092 was more stable in basic pH and Zn2+ was the most effective divalent cation. Also, 2 steps of purification consisting of ammonium sulfate precipitation and gel filtration were employed and purified 32-fold.Ege University Scientific FundEge University [09-MUH-076, 11-MUH-062]Authors acknowledge that the grant for this study was provided by Ege University Scientific Fund through the project numbers 09-MUH-076 and 11-MUH-062
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
Some characteristics and isolation of novel thermostable ß-galactosidase from Thermus oshimai DSM 12092
No full textThe ß-galactosidases belong to the class of hydrolytic enzymes and have been used as lactose hyrolysis. The enzyme is used in reducing lactose milk production, an outstanding industrial product used by a large lactoseintolerant population. This is the first detailed report of some characteristics of ß-galactosidase and the gene encoding ß-galactosidase in Thermus oshimai DSM 12092. The growth rate (µ, 1/h), and the doubling time (tD, h) for T. oshimai grown both in shaking flasks and in a bioreactor were determined. The optimal temperature and pH for ß-galactosidase were determined as 75°C and 7. 4, respectively. This enzyme was thermostable and was retained by more than 70% at 90°C for 3 h. The ß-galactosidase from T. oshimai DSM 12092 was more stable in basic pH and Zn2+ was the most effective divalent cation. Also, 2 steps of purification consisting of ammonium sulfate precipitation and gel filtration were employed and purified 32-fold. © 2013 The Korean Society of Food Science and Technology and Springer Science+Business Media Dordrecht
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