1,721,204 research outputs found
[Anxiety, depression and risk consumption of alcohol in a sample of university students]
No full textThe university student is vulnerable to the adverse effects of many stress factors that can lead to depressive symptoms, anxiety and alcohol abuse, causing an increase in the burden of illness in young people. The aim of the study was to measure depressive symptoms, anxiety levels, and harmful alcohol consumption within the student population of the University of Palermo
Attualità in ambito di valutazione e prevenzione del rischio biologico in ambito occupazionale
No full textAttualità in ambito di valutazione e prevenzione del rischio biologico in ambito occupazionale
Alberto Firenze1, Martina Barchitta2, Annalaura Carducci3
1 Dipartimento di Scienze per la promozione della Salute - Università degli Studi di Palermo
2 Dipartimento di Scienze Mediche, Chirurgiche e Tecnologie Avanzate “GF Ingrassia”, Università degli Studi di Catania
3 Dipartimento di Biologia, Università degli Studi di Pisa
Introduzione: I rischi biologici emergenti sono strettamente legati a fenomeni sociali ed ambientali. In ambito occupazionale,
tra i lavoratori più esposti a rischio di contrarre epatiti virali B e C, oltre agli operatori sanitari, si annoverano gli addetti alla
rimozione dei rifiuti e alla bonifica di siti contaminati. Le epatiti a trasmissione fecale-orale interessano principalmente gli
addetti alla manipolazione di alimenti, alla depurazione di acque di scarico e i lavoratori in comunità chiuse. Negli ultimi anni
sono aumentati i casi di zoonosi e di malattie micotiche, specie nei lavoratori immunodepressi. In questi soggetti assumono
rilevanza le infezioni da legionella a cui sono esposti vivaisti, autisti e manutentori. Obiettivi: Il controllo del rischio biologico
si basa attualmente su valutazioni qualitative, metodi di contenimento e sanificazione ambientale, e programmi vaccinali
il cui risultato è difficilmente valutabile. Inoltre i dati ambientali ed epidemiologici non sono in genere correlabili fra loro.
Pertanto, considerata l’ubiquitarietà e la continua evoluzione del rischio, risultano cruciali la valutazione e la prevenzione
dello stesso in ambito occupazionale. Metodi: Per una corretta valutazione del rischio biologico, è necessario: 1) integrare dati
epidemiologici e rilevazioni ambientali; 2) caratterizzare la resistenza degli agenti patogeni nell’ambiente ed ai trattamenti; 3)
definire la relazioni dose-risposta; 4) studiare gli indicatori rappresentativi per la valutazione del rischio; 5) identificare metodi
di monitoraggio ambientale; 6) ideare modelli matematici di stima del rischio (Quantitative Microbial Risk Assesment, QMRA);
7) progettare modelli di stima del rischio “personalizzati” alle caratteristiche del singolo lavoratore. Conclusioni: Alla luce
dei progressi scientifici, sono disponibili conoscenze, tecniche analitiche e modelli matematici che permettono di valutare e
controllare il rischio biologico in modo innovativo. A questo scopo è indispensabile la formazione di operatori specializzati,
l’integrazione fra diverse competenze e discipline, e l’aggiornamento della normativa vigente
Risk Factors for Addictive Behaviors: A General Overview
Full text linkMany people around the world have behaviors that are recognized as addictive behaviors, usually not causing significant health consequences except in a few cases, which consist typically of a low percentage of people who may develop addictive behavioral disorders that may be associated with functional impairment and distress [...
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
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
- …
