1,720,971 research outputs found
[The contribution of occupational medicine in cardiovascular prevention and return to work of cardiac patients].
La percezione dello stress nel terziario: utilità e indicazioni del Job Content Questionnaire
«Job stress in the service industry. Evaluation of the Italian version of the Job Content Questionnaire». Background:
Recent changes in work organization have greatly expanded the service industry, where stress perception
appears to be the major factor of discomfort. Job stress remains a critical issue in occupational exposure assessments.
Objectives: To assess the compliance and the consistency of the three major constructs (Psychological Job Demand
(PJD); Decision Latitude (DL); and Social Support at Work (SSW)) of the Italian version of the Job Content
Questionnaire (JCQ) adopted in the MOPSY and JACE studies and their gender-specific distributions in a large
sample of civil servant in northern Italy. Methods: JCQ was administered to 2601 men and 5761 women
employed in six different departments of the Municipality of Milan. Two JCQ versions – short and intermediate –
which differ by the number of items that assess DL for inclusion of SSW, were used in different sub-samples. Compliance
was measured in terms of participation rate and percentage of missing items. A construct-specific Cronbach
alpha coefficient was used to assess internal consistency. As a measure of external consistency the correlation coefficients
between the three constructs were adopted. Results: The participant rate was very high in the entire sample:
75.3% in men and 76.2% in women. The percentage of missing items was small and acceptable, ranging from
3.61% for DL to 6.33% for SSW. The Cronbach alpha coefficients ranged from 0.72 for PJD to 0.88 for SSW.
Assumptions for external validity were satisfied in both gender groups. The percentage of perceived high job stress
diminished in older men, but the age trend was inverse among women, indicating gender differences in the possibility
of improving work conditions and career. Interferences with the family-related load and responsibilities may
play a significant role. In both gender groups, a satisfactory SSW level reduced perceived high job stress. Conclusions:
The adopted versions of the JCQ, originally developed in American and north European socio-cultural contexts,
demonstrated satisfactory levels of compliance, and internal and external consistency. The JCQ adequately
described perceived job stress in the groups of workers under study
Going Beyond Counting First Authors in Author Co-citation Analysis
The 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
Sick leave risk factors in a sample of women employed in the public sector. The SEMM study
OMS reports describe an increase of levels of sickness leaves (SL) at work in all industrialized countries in last decades. Aims of this study are to assess incidence of SL from work in a sample of women public employees and to identify significant factors, among individual, behavioural, familiar, occupational and work strain related. The survey took place between April 1992 and December 1998. After the baseline examination, a two years follow-up was conducted, to detect any SL longer than one day. N. 8123 female employees of the Municipality of Milan were enrolled, undergoing a baseline health examination. They belong to the following municipality sectors (SM): kindergarten, register office, clerks and police. The overall response rate was 76% (3698 females and 2448 males). The present analysis was restricted to female only, who showed almost double incidence of SL than men. Interpolation of logistic models allowed to identify the following predictive independent factors: physical activity in leisure time, work length and social support at work, for incidence of short SL; physical activity at work, hypertension and smoking habit for intermediate SL; and perceived work strain and number of familiar contacts for long SL
Variations on the Author
“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
We 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
We 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
We 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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