1,720,962 research outputs found
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
The comorbidity of anxiety disorders and physical diseases : an epidemiological approach
Full text linkAbstract
Background: Anxiety disorders are highly comorbid with other mental disorders. This has important implications for individuals’ burden, etiology of the comorbid diseases and treatment. Knowledge about the comorbidity with physical diseases in the community, however, is limited, especially for specific anxiety disorders. This dissertation evaluates the comorbidity of specific anxiety disorders and noncommunicable and communicable physical diseases in the general population. Further, it investigates the association of comorbidity with measures of burden, namely, quality of life and disability.
Method: Data of the German Health Interview and Examination Survey (GHS), a representative general population survey from Germany with 4,181 subjects aged 18-65 years, were used. Anxiety disorders were diagnosed using the Munich-Composite International Diagnostic Interview (DIA-X/M-CIDI), noncommunicable physical diseases were assessed through a self-report questionnaire and a standardized medical interview, and communicable physical diseases through a self-report questionnaire.
Results: Both obsessive-compulsive disorder (OCD) and specific phobia were associated with migraine and respiratory diseases. Additionally, subthreshold forms of OCD were associated with specific noncommunicable physical diseases. Agoraphobia, specific phobia, and generalized anxiety disorder were all associated with whooping cough. The documented comorbidity was associated with increased disability and decreased quality of life.
Discussion: The detected comorbidity patterns may contribute to a better understanding of the psychobiological pathways of comorbidity. Further, increased burden of individuals affected underlines the need for studies evaluating the effect of treatment in comorbid cases.
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Zusammenfassung
Hintergrund: Angststörungen weisen eine hohe Komorbidität mit anderen psychischen Störungen auf. Dies hat wichtige Implikationen für die Belastung der Betroffenen, sowie für die Ätiologie und Therapie der komorbiden Störungen. Die Datenlage zur Komorbidität mit körperlichen Erkrankungen in der Bevölkerung ist jedoch für spezifische Angststörungen eingeschränkt. Die vorliegende Dissertation untersucht den Zusammenhang zwischen spezifischen Angststörungen und nichtübertragbaren und übertragbaren körperlichen Erkrankungen in der Bevölkerung. Weiter wird die Assoziation der Komorbidität mit Lebensqualität und Beeinträchtigung untersucht.
Methode: Analysiert wurden die Daten des Bundesgesundheitssurvey, einer repräsentativen Bevölkerungsstichprobe Deutschlands mit 4’181 Probanden im Alter von 18-65 Jahren. Angststörungen wurden mit dem DIA-X/M-CIDI Interview erhoben, nichtübertragbare körperliche Erkrankungen mit einem ärztlichen Interview, sowie mit einem Fragebogen und übertragbare körperliche Erkrankungen mit einem Fragebogen.
Resultate: Sowohl die Zwangsstörung als auch die Spezifische Phobie traten gehäuft mit Migräne und Atemwegserkrankungen auf. Auch subklinische Formen der Zwangsstörung waren mit spezifischen, nichtübertragbaren körperlichen Erkrankungen assoziiert. Agoraphobie, Spezifische Phobie und Generalisierte Angststörung gingen mit erhöhten Prävalenzraten von Keuchhusten einher. Komorbidität war mit erhöhter Beeinträchtigung und niedrigerer Lebensqualität assoziiert.
Diskussion: Die Komorbidiätsmuster können zu einem besseren Verständnis der zugrundeliegenden Mechanismen beitragen. Die assoziierte Belastung unterstreicht die Bedeutung weiterer Forschung zur Wirksamkeit der Therapie bei komorbiden Erkrankungen.
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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