1,720,962 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

    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

    Introduction of a telemonitoring service for patients affected by Chronic Heart Failure

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    Nuove Reti Sanitarie is a telemonitoring service for patients with Chronic Heart Failure (CHF) successfully implemented in Lombardia Region, Italy, over the period 2006–2008. In particular, the purpose of this paper is to describe the implementation process and the assessment results of this telemedicine service. 609 patients (70 ± 12 years) affected by CHF (91.6% and 8.4% in NYHA III and IV, respectively) have been enrolled. During the telemonitoring period (158 ± 58 days), 1.1 weekly contacts per patient have been performed. The total reimbursement provided to the 24 hospitals that used the service was € 363,880, corresponding to 3,308 telemonitoring months. The service improved the severity of CHF in 34% of patients in NYHA III and in 39% of patients in NYHA IV and decreased the number of hospitalizations. The results of 432 questionnaires reflect a high patient satisfaction

    The SUMMA project: a feasibility study on telemedicine in selected italian areas

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    Telemedicine is achieving relevant clinical importance in rural areas in the management of patients. The Second opinion Unificata per Medici di Medicina generAle (SUMMA) Project was designed to evaluate the feasibility of a joint telemedicine service application across general practitioners and clinical specialists in Italy. The secondary objective of the study included the comparison of telemedicine with the routine general practitioners' approach and a cost-effectiveness evaluation. One hundred and thirty-five general practitioners from Lombardy, Molise, and Valle d'Aosta were enrolled. An ad hoc questionnaire was used to evaluate the feasibility, approval, efficacy, and satisfaction of telemedicine among the general practitioners. Ninety-three general practitioners used the telemedicine consultation (responders) for a total of 1,396 calls (1,264 for cardiology, 65 for dermatology, 32 for diabetology, 22 for rheumatology, and 13 for pneumology). In cardiology, telemedicine was used to address all problems without further action in 733 cases (61%). Ninety-eight percent of responders indicate satisfaction with telemedicine. The cost of telemedicine in our study was estimated to be 25.36 Euros/contact. In conclusion, the SUMMA Project demonstrated for the first time clinically the effectiveness of second-opinion consultation by general practitioners and therefore fulfilling the actual needs in areas usually managed by the National Health System

    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
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