1,721,036 research outputs found
Aspirin in primary prevention: the triumph of clinical judgement over complex equations
No full textAspirin, in 2017, has celebrated its 120th birthday. The efficacy and safety of low-dose aspirin in secondary prevention of cardiovascular disease is well supported by many studies, instead in primary prevention it remains controversial, especially in the aftermath of the publication in 2018 of three novel primary prevention randomized clinical trials, showing that the benefit of low-dose aspirin, although additive to that of statin, is counterbalanced by an excess of (mainly gastrointestinal) bleeding events. The signal for a net benefit seems to be even more controversial in the elderly starting aspirin after the age of 70 years. While international guidelines have promptly downgraded their recommendations to more conservative indications, the practicing clinician is called to make the effort to individualize the treatment, after careful evaluation of the haemorrhagic risk vis-a-vis the risk to develop, in the mid-term and long-term follow-up, major cardiovascular events or cancer. This is a particularly complex task, given the different immediate and long-term impact of diverse outcomes on health, the dynamic nature over time of the benefit/risk balance, prompting periodic re-assessments of its indication, and the interindividual variability in aspirin response. The chemopreventive properties of aspirin, anticipated by a large body of epidemiological and mechanistic evidence, are awaiting their final confirmation by the long-term follow-up of the latest trials specifically designed to assess this endpoint, with the expectation to subvert the delicate benefit/risk balance of aspirin in primary prevention. This review is intended to provide an interpretation of past and current evidence to guide clinical decision making on the contemporary patient
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
Coniugalità. Educare al mistero della relazione nel tempo degli asterischi
No full textCon specifico riferimento alla fenomenologia e, in particolare al pensiero di E. Fink, viene presentata una riflessione pedagogica sul valore della reciprocità del maschile e del femminile. In questa prospettiva, grazie al commento di alcuni scritti di Luigi Pati, la coniugalità viene presentata come un esistenziale, cioè come una struttura essenziale dell’esistenza umana
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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