1,721,829 research outputs found
Plasma concentrations of afamin are associated with the prevalence and development of metabolic syndrome
No full textRare variant in scavenger receptor BI raises HDL cholesterol and increases risk of coronary heart disease
No full textLipoprotein(a) concentration and the risk of coronary heart disease, stroke, and nonvascular mortality
No full textPlasma concentrations of afamin are associated with the prevalence and development of metabolic syndrome
No full text
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
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
Einfluss unterschiedlicher elektrokardiographischer Aufzeichnungsmethoden auf die Korrelation von Herzfrequenzvariabilitäts-Parametern mit kardiovaskulären Risikofaktoren bzw. Erkrankungen
Full text linkDiese Arbeit überprüft, ob sich unterschiedliche EKG-Aufzeichnungsmethoden (AZM) auf die Assoziation von kardiovaskulären Risikofaktoren (CVRF) mit HRV-Parametern auswirken. Bei 148 Probanden der CARLA-Studie wurden 5 HRV-Parameter aus 4 verschiedenen EKG-AZM anhand eines kontrollierten 20min-EKGs und eines spontanen 24h-EKGs bestimmt. Um Einflüsse der EKG-AZM zu detektieren, wurden normierte β-Koeffizienten aus linearen Regressionsanalysen bei 10 CVRF miteinander verglichen. Im Vorfeld wurde eine Relevanzgrenze festgelegt, um die Ergebnisse einzuordnen. Die Einflüsse der EKG-AZM sind beim Geschlecht, Nikotinkonsum und Bluthochdruck mit HRV-Parametern deutlich relevant; beim Alter, Diabetes mellitus Typ 2 und der Betablocker-Therapie gelegentlich relevant. Beim Zusammenhang BMI, WHR und Gesamt/HDL-Cholesterin mit HRV-Parametern gibt es sporadisch relevante Einflüsse der EKG-AZM und keine bei körperlicher Aktivität. Die Ergebnisse zeigen abhängig vom CVRF einen Trend hin zum Einfluss der EKG-AZM auf die Assoziation von CVRF mit HRV-Parametern, aber ohne Signifikanz.This work examines whether different ECG recording methods affect the association of cardiovascular risk factors (CVRF) with HRV parameters. In 148 subjects of the CARLA study, 5 HRV parameters were determined from 4 different ECG recording methods using a controlled 20-minute ECG and a spontaneous 24-hour ECG. In order to detect effects of the ECG recording methods, normalized β-coefficients from linear regression analyses were compared with each other for 10 CVRF. In advance, a relevance limit was set to classify the results. The effects of ECG recording methods are clearly relevant for sex, nicotine consumption and hypertension with HRV parameters and occasionally relevant for age, diabetes mellitus type 2 and beta-blocker therapy. In the context of BMI, WHR and total / HDL cholesterol with HRV parameters, there are sporadically relevant influences of ECG recording methods, none during physical activity. The results show a CVRF-dependent trend for the influence of the ECG recording methods on the association of CVRF with HRV parameters. However, no significance was found.vorgelegt von Evelyn Helga Maria Friedric
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