1,721,077 research outputs found
Strumenti per la valutazione del rischio cardiovascolare in relazione allo stato di ateromasia coronarica in soggetti con infezione da HIV
Get PDFNonostante l'avvento dei farmaci antiretovirali, l'infezione da HIV rimane a tutt'oggi uno dei principali problemi di carattere sanitario a livello globale. La prognosi e lo spettro delle complicanze nei soggetti con infezione da HIV appaiono al giorno d'oggi profondamente differenti rispetto a quanto osservato nell'era pre HAART, ad ogni modo oggi i pazienti HIV positivi presentano un più elevato rischio di presentare comorbidità non correlate alla condizione di AIDS, rappresentate per lo più da patologie legate all'invecchiamento, e tra queste la malattia cardiovascolare risulta essere una delle più frequenti. L'incidenza di infarto acuto del miocardio in questa popolazione risulta essere raddoppiata rispetto a quanto si osserva nella popolazione generale, con un'età media di insorgenza precoce rispetto ai soggetti HIV negativi. La patogenesi di tale condizione risulta essere in parte conseguente allo stato di aumentata infiammazione e immunoattivazione sistemica che è propria dei soggetti con infezione da HIV, mentre almeno in parte è ascrivibile agli effetti metabolici di alcuni dei farmaci utilizzati nel trattamento dell'infezione. Ad ogni modo, il rischio cardiovascolare in questa popolazione risulta essere più elevato rispetto a quanto osservato nella popolazione generale, anche per quanto riguarda gli individui che non presentano i tradizionali fattori di rischio cardiovascolare. In questa prospettiva, il presente studio si propone di valutare lo stato di malattia coronarica subclinica in una popolazione di soggetti con infezione da HIV a basso rischio cardiovascolare e di investigare l'applicabilità di metodi per la valutazione di tale rischio
Training of a fuzzy relational system by genetic algorithms for interpreting HIV-1 resistance genotypes using virologic response to salvage therapy from prospective clinical data
No full textHIV infection in the elderly: a multicentre study
No full textHIV infected population in industrialized countries is ageing as a result of both prolonged survival in patients treated with HAART and late diagnosis in patients > 50 years of age. We sought to determine the characteristics of HIV infection in older individual
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
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
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