1,721,035 research outputs found
Elsevier SciVai : implementation and experiences
No full textBlok obsahuje 2 přednášky New research perspective – SciVal for the Czech Republic (Szymański, Krzysztof) a Using SciVal at the University of Bath (Robinson, Kate) a následnou společnou diskuzi
Elsevier SciVai :implementation and experiences
No full textBlok obsahuje 2 přednášky New research perspective – SciVal for the Czech Republic (Szymański, Krzysztof) a Using SciVal at the University of Bath (Robinson, Kate) a následnou společnou diskuzi
Education groups for those with painful peripheral diabetic neuropathy an evaluation
No full textPainful peripheral diabetic neuropathy (PPDN) can dominate people’s lives. In 1990 the St Vincent Declaration admirably aimed to halve amputation rates due to diabetic gangrene (World Health Organisation [Europe] and International Diabetes Federation [Europe], 1990). The incidence of lower limb amputations in people with diabetes has been reported as 248 per 100 000 patient years, compared with 20 per 100 000 patient years for those without diabetes (Morris et al, 1998). It is well known that the downward slide towards amputation often begins with peripheral neuropathy (Boulton et al, 2000). This article discusses group education sessions used to inform both the person with PPDN and the healthcare professional
Psychological distress and premature mortality in the general population: a prospective study
No full textPurpose: to determine whether higher rates of mortality are observed in people reporting psychological distress, to establish the nature of any excess, and to examine the possible existence of a dose response relationship.Methods: we conducted a prospective follow-up study of mortality over an eight-year period in the North West of England. A total of 4,501 adults were recruited from two general practices during a population-based survey conducted at the start of 1992. At baseline psychological distress was assessed using the General Health Questionnaire (12-item version, GHQ-12). The relationship between levels of distress and subsequent mortality was examined using Cox proportional hazard models.Results: risk of all-cause mortality was greatest in subjects reporting the highest levels of distress (hazard ratio (HR) 1.71, 95% CI 1.32–2.23) but was also raised in subjects reporting intermediate distress (HR 1.38 95% CI 1.06–1.79) when compared to those reporting no distress. Increased risk of mortality in subjects reporting distress appeared to be due largely to an excess of deaths from ischaemic heart disease (high distress, HR 1.90, 95% CI 1.08–3.35; intermediate distress, HR 1.58, 95% CI 0.90–2.76) and respiratory diseases (high distress, HR 5.39, 95% CI 2.70–10.78; intermediate distress, HR 2.33, 95% CI 1.12–4.22).Conclusions: the association between mortality and psychological distress observed in this study seems to arise largely because of premature deaths from ischaemic heart disease and respiratory diseases. The existence of a dose-response effect between distress and mortality provides further evidence to support the existence of a casual relationship
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
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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