1,720,961 research outputs found
Scale for the measurement of attitudes towards alcohol
No full textAims: The aim was to analyse the characteristics of, and validate, a new instrument in Italian, 'Scale for the measurement of attitudes towards alcohol'. The instrument is a means for assessing young people's risk profile regarding the use of alcohol and identifying the factors that contribute to determining this attitude. Methods: The test was initially composed of 60 items divided into three domains and administered to a sample of 41 subjects. The results revealed the necessity of adapting the test's conceptual structure: consequently, the items were reduced to 35, divided into five domains. This second version was administered to a sample of 467 students attending upper secondary schools and vocational training schools in the municipality of Siena. Following this second experiment, a third version was realized, which comprised 25 items divided into the same five domains; it was administered to 100 subjects, with an equal number of males and females and an age range of 14-30 years. Analysis of the data obtained resulted in a final structure formed of 15 items in three domains. Results: The final structure of the test has good psychometric properties in terms of both reliability and validity. Conclusions: The 'Scale for the measurement of attitudes towards alcohol' can be seen as an instrument for evaluating the factors capable of conditioning the behaviour of people between 18 and 26 years of age towards alcoholic substances. © The Author 2011. Published by Oxford University Press on behalf of the Medical Council on Alcohol. All rights reserved
Alimentazione e Neoplasie: epidemiologia e prospettive di prevenzione
No full textLa patologia neoplastica rappresenta in Italia la seconda causa di morte e, nonostante i progressi nelle terapie, la strategia migliore per ridurre la mortalità è rappresentata dalla prevenzione primaria. Uno dei principlai punti di intervento è sicuramente rappresentato dall'individuazione di una correta alimentazione. Nel presente capitolo sono analizzati i diversi legami tra abitudini alimentari ed insorgenza di noeplasie, suggerendo le possibili strategie di prevenzione
Stipsi e diarrea: correlazioni cliniche e provvedimenti dietetici
No full textLe abitudini dell'alvo rappresentano non di rado una problematica molto sentita dai pazienti. Tuttavia il limite tra normalità e patologia non è sempre ben definito. Nel presente capitolo si analizzano i criteri diagnostici e le opzioni terapeutiche per la stipsi e la diarrea
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
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