1,720,965 research outputs found
RECREATIONAL WATER ILLNESSES
No full textThe safety of recreational waters is affected by numerous variables as the microbiological and chemical quality of water, the number and health conditions of the users, the correct functioning of all technological installations used for water treatment. By evaluating the various health risks related to exposure to swimming pools, spas and surface waters, this Special Issue contributes to address the necessary risk-informed approach for the proper management of waters used for recreational purposes, both in natural and built environments.
The Issue contains 12 scientific papers. The first four, three of those are literature reviews, illustrate the epidemiological picture of infections related to recreational waters, by describing cases and outbreaks caused by both traditional and emerging microorganisms. The next four papers concern the microbiological water monitoring of swimming pools, gardens, estuarine areas, therapeutic spas. Two of these also analyse the distribution of antibiotic resistant bacteria and the associated transmission risk. The relationship between microbial indicators and pathogens in recreational water is analysed by the next two papers, one of which is an experimental study on the survival of Salmonella and Escherichia coli in estuarine bank sediments and the other is an exhaustive literature review. The last paper is focused on the development of microbiological risk control approaches, including the application of traditional and innovative technologies
La prevenzione degli infortuni in piscina
No full textVengono illustrati i principali rischi di infortunio nell'ambiente delle piscine natatorie e le misure generali ed individuali per evitarli
Attività motoria e osteoporosi
No full textDopo un inquadramento generale degli aspetti epidemiologici dell'osteoporosi, si analizzano i benifici che l'attività fisica esercita aul paziente osteoporotico ed il ruolo nella prevenzione primaria, secondaria e terziaria, secondo le evidenze scientifiche. Sono in seguito esaminati i Programmi di AFA (Attività Fisica Adattata) proposti per ila riabilitazione funzionale nell’osteoporosi
Efficacia della disinfezione su impronte dentali contaminate artificialmente ed in vivo.
No full text
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
Le acque termali e la promozione della salute.
No full textLe acque termali sono particolari acque minerali naturali caratterizzate da una peculiare composizione salina, utilizzate a fini terapeutici. Negli ultimi anni il termalismo ha cambiato in parte la propria collocazione nel sistema produttivo, poiché gli stabilimenti termali, accanto alle tradizionali applicazioni curative, hanno dato impulso alla creazione di centri benessere, trasformandosi sempre più in strutture turistico-ricreative e in luoghi frequentati da una pluralità di persone con esigenze e stato di salute diversi. Dopo aver esaminato le caratteristiche terapeutiche delle acque termali, gli autori si soffermano sul potenziale rischio di infezione associato alla loro esposizione, legato principalmente a contaminazione da parte di microrganismi di origine acquatica potenzialmente patogeni che possono trovare nei sistemi di distribuzione idrica degli stabilimenti termali le condizioni per moltiplicarsi e colonizzare l’impianto. Sono esaminati i principali agenti infettivi che, secondo le evidenze scientifiche, possono provocare casi sporadici o focolai epidemici associati all’esposizione ad acqua termale, in particolare Legionella pneumophila, Pseudomonas aeruginosa, micobatteri e amebe a vita libera. Sono inoltre prese in considerazione le modalità di controllo della contaminazione microbica, tenendo in considerazione le linee guida e le normative esistenti ed esaminando le modalità di applicazione del sistema di valutazione e gestione del rischio basato sui principi del sistema HACCP (Autocontrollo)
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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