1,721,037 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
Clinical Epidemiological Studies for Improving Patient Care in Juvenile Idiopathic Arthritis
No full textSimilar to adults, children can also develop arthritis. The most common type of chronic arthritis in children is called juvenile idiopathic arthritis (JIA) and affects roughly 1 in every 1,000 children in the Netherlands. Since the introduction of biological DMARD therapies, reaching inactive disease has become a realistic target for most JIA patients. Still, there is much room for improvement in patient care for JIA.
In this thesis, we applied traditional and advanced epidemiological research methods to patient data from the Wilhelmina Children’s Hospital, the global Pharmachild registry and collaborating registries, in order to answer clinically relevant questions for improving patient care in JIA. We described the occurrence and predicting factors of comorbidities, which are common and complicate the approach to treating JIA. We developed and validated for the first time a model for predicting uveitis, that can assist clinicians in determining screening frequencies and drug therapy. We furthermore reported a protective effect of methotrexate therapy on developing JIA-associated uveitis, identified factors that can be used to distinguish JIA from non-inflammatory chronic pain syndrome at the early diagnosis stage, and compared the effects of two common biological drug therapies on patient-reported well-being. In addition, we enrolled patients in two prospective studies, and concluded that home-monitoring using web-based questionnaires is a feasible and much appreciated method of remotely tracking disease activity, and that vaccination against meningococcal disease is safe but elicits a weaker immune response in patients using biological therapy
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
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