1,721,064 research outputs found
Perspectives: The burden of cardiovascular risk factors and coronary heart disease in Europe and worldwide
No full textCardiovascular disease (CVD) is estimated to be the leading cause of death and disability-adjusted life years lost worldwide being coronary heart disease the most prevalent form of heart disease. The underlying cause of most CVD is atherosclerosis, a process mainly governed by lifestyle factors. Several epidemiological studies have enabled the recognition of the major risk factors for CVD development, 'the so-called conventional risk factors'. Identification of such global risk factors have led, in turn, to the development of risk-prediction algorithms and cardiovascular risk models for men and women. Indeed, during the last years, there has been increasing credit of the importance of CVD in women accompanied by growing awareness of gender differences in natural history, preventive strategies, treatment, and prognosis of CVD. Classical risk factors, however, cannot fully explain the excess cardiovascular risk, and at least 25% of all future events occur in individuals with only one of the classical risk factors. This scenario has prompted the interest for discovering new risk factors. Time-trend analysis of surveys by the European Society of Cardiology (EUROASPIRE surveys) has reflected, however, that large proportions of European coronary patients are failing to achieve lifestyle, risk factor, and therapeutic targets for the prevention of CVD leaving room from improvement. Moreover, although overt CVD takes place during adulthood, lifestyle and dietary changes that have occurred over the last two decades support the need to instigate primary prevention measures during childhood as the best strategy to retard atherogenic processes
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
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
Vasospastic angina
No full textVasospastic angina is a form of ischemic heart disease caused by episodes of coronary artery increased focal vasomotor tone occurring typically at rest. Clinically episodes will manifest as angina at rest associated with ST-segment changes on the electrocardiogram (ECG) and promptly relieved by calcium channel antagonist (CCB) or short-acting nitrates. In recent years studies have demonstrated that coronary spasm can occur during physical or emotional stress and episodes could be associated with ST-segment depression on the ECG. Diffuse coronary artery spasm, characterizing vasotonic angina, is a manifestation of endothelial dysfunction involving the entire coronary tree and the coronary microcirculation is the major culprit. These patients will present with symptoms of stable and unstable angina and ST-segment depression on the ECG
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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