1,721,032 research outputs found
Die Historischen Grundwissenschaften zwischen Tradition und Neuorientierung. Eine Einleitung
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Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Cerebrospinal fluid findings in geriatric patients from 2008 to 2011
No full textThe chemical composition of the cerebrospinal fluid (CSF) is age-dependent. Routine CSF parameters, the indications for lumbar puncture (LP), and the most frequent complications were retrospectively studied in patients older (n = 167) and younger (n = 36) than 65 years. In the absence of meningeal inflammation, the mean CSF lactate level of patients older than 65 years was slightly but significantly higher than the mean CSF lactate level of younger patients. The lactate level of patients with otherwise normal CSF findings correlated significantly with the age of the patients. In the absence of meningeal inflammation, the CSF-to-serum albumin ratio (Q(Albumin)) was significantly higher in older patients than in younger ones. The most frequent indication for LP, suspected infection of the central nervous system (CNS) (n = 110), was confirmed in 12.7% of patients. The only LP complication documented was headache in two patients. Elevations of Q(Albumin) and CSF lactate levels appear to be nonspecific findings in elderly patients. Suspected infections, the most frequent indication for LP, were confirmed by CSF analysis in more than 10% of patients. The very low complication rate of LP makes it a very valuable tool in the diagnostic routine for older patients with CNS diseases.Robert Bosch Foundation; Sparkasse Gottinge
Towards a Registry for Digital Resources : The Text+ Registry for Editions
Full text linkThe paper presents the Text+ Registry as a central system to describe and catalogue different kinds of resources. Using the example of editions and edition projects, desiderata and challenges regarding their discoverability are outlined, and the data model to cater for the wide range of different types of editions is described. With its overarching and flexible approach, the Text+ Registry is a versatile and flexible technical component, designed for future expansion and broad connectivity
F wie Registry - Die Text+ Registry als Hilfsmittel zur Auffindbarkeit von Ressourcen
No full textIm Kontext des NFDI-Konsortiums Text+ entsteht mit der Registry ein übergreifendes Verzeichnis, in dem Ressourcen verschiedener Datendomänen erfasst und vernetzt werden. Die Registry speist sich aus verschiedenen Datenquellen, geht aber in ihrem Ansatz der zentralen Verzeichnung unterschiedlicher Ressourcentypen über bestehende Angebote hinaus. Die Findability von Ressourcen spielt auf mehreren Ebenen eine Rolle. Als zentrales Verzeichnissystem erhöht die Registry die Auffindbarkeit von Ressourcen, diese – oder zumindest deren Metadaten – müssen für eine Aufnahme aber erst identifiziert werden. Hier wird ein Community-basierter Ansatz verfolgt. Im Posterbeitrag sollen Herausforderungen, Möglichkeiten aber auch Grenzen der Registry reflektiert und der Stand der Arbeiten vorgestellt werden
Variations on the Author
Full text link“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
Full text linkWe 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
Full text linkWe 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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