1,721,221 research outputs found

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

    Roth, Dieter

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    Roth, Dieter

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    Variations on the Author

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    “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

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    We 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

    Towards a new reconstruction of the text of Marcion’s Gospel : history of research, sources, methodology, and the Testimony of Tertullian

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    This thesis provides the initial and foundational steps for a new reconstruction of the text of Marcion’s Gospel. Though Harnack’s 1924 magisterial work on Marcion remains valuable and important, shortcomings in his reconstructed text of the Marcionite scriptures, as well as advances in critical methodology, text criticism, and patristic studies have led to the recognition that new reconstructions of Marcion’s scriptures are a scholarly desideratum. With the text of Marcion’s Apostolikon examined and reconstructed in a 1995 work by Ulrich Schmid, this thesis provides the most important elements for a new examination and reconstruction of Marcion’s Euangelion. Chapter 1 provides an extensive history of research, not only to provide the context and rationale for the present work, but also to provide the first in-depth scholarly survey of work on Marcion’s Gospel in 150 years. In addition, since several flaws in earlier studies arose out of a lack of an accurate understanding of the status quaestionis at various points in the history of research on Marcion’s Gospel, by considering and engaging with previous scholarship such errors can be avoided. Chapter 2 begins with a consideration of the sources for Marcion’s Gospel and provides a comprehensive listing of verses attested as present in, verses attested as absent from, and unattested verses of this Gospel. The chapter concludes with a methodological discussion, highlighting the particular importance of understanding the citation customs of the witnesses to Marcion’s text and noting the significant citation customs of Tertullian demonstrated by Schmid’s and my own research. Chapter 3 begins the analysis of the data found in Tertullian, the most extensive and important source for Marcion’s Gospel. This chapter examines all of the verses that Tertullian attests for Marcion’s Gospel that are also cited elsewhere in Tertullian’s corpus and focuses particularly on how these multiply-cited passages provide insight into Tertullian’s testimony to readings in Marcion’s text. Chapter 4 continues the analysis of Tertullian’s testimony by examining the remaining verses, i.e., those attested for Marcion’s Gospel but not multiply-cited in Tertullian’s corpus. Chapter 5 provides a reconstruction of the 328 verses in Marcion’s Gospel for which Tertullian is the only witness and offers not only readings for Marcion’s text, but also the relative certainty for those readings. Chapter 6 summarizes and concludes the thesis, along with brief mention of avenues for future research

    Dispelling the Myths Behind First-author Citation Counts

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    We 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

    Author Index

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    Bewegungen der Bewegungsforschung

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    Roland Roth/Dieter Rucht (Hg.): Die sozialen Bewegungen in Deutschland seit 1945. Ein Handbuch, Frankfurt/New York 200
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