1,720,977 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
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
Закономерности роста тканей у свиней
Get PDFThrough the research of the swine's tissue growth, it was discovered that tissue growth in postnatal life is unequal. During the first two months of piggery's life muscular tissue has the highest rate of growth; the next ones are adipose tissue and osseous tissue. During the following age periods adipose tissue ranks first by the growth speed, then muscular and osseous tissues.При изучении роста тканей у свиней было установлено, что в постнатальный период он происходит неравномерно. В первые 2 месяца жизни поросят наивысшей скоростью роста обладает мышечная ткань, за ней следуют жировая и костная. В последующие возрастные периоды первое место по скорости роста занимает жировая ткань, за ней мышечная и костная
Морфологическое строение печени у кур (обзор)
Get PDFThe analysis of the literature of our country and of foreign literature shows that the information about the poultry's lever morphology is little, of uncoordinated and fragmentary character and sometimes even conflicting. The morphogenesis of poultry's lever in the most critical periods and phases of the postnatal ontogenesis is not fully revealed. The peculiarities of lever structure and development depending on the intensity of raising and fattening of poultry are little-studied and need further inquiry.Анализ отечественной и зарубежной научной литературы показывает, что сведения о морфологии печени у птиц малочисленны, носят разрозненный и фрагментарный характер и иногда противоречивы. Недостаточно полно раскрыт морфогенез печени у птиц в наиболее критические этапы и фазы постнатального онтогенеза. Особенности строения и развития печени в зависимости от интенсивности выращивания и откорма птицы малоизученны и требуют дальнейшего исследования
Histological characteristics of goiter cocks cornish and plymouthrock in postnatal ontogenesis
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