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A measurement model was analyzed to demonstrate a differential distribution and cumulative exposure to psychosocial risk and protective influences of adolescent drug use among ethnically-diverse adolescent samples. The sample included U.S.-born (US) Latino (N = 837), foreign-born (FB) Latino (N = 447), White (N = 632), and African American (N = 618) adolescent boys. Psychological Distress, Peer Drug Use, and Adolescent Drug Use were significantly positively correlated with Peer Drug Use and Adolescent Drug Use. In contrast, Family, School, law abidance, and guilt were significantly negatively correlated with Peer Drug Use and Adolescent Drug Use. Multiple group analyses indicated significant similarities and differences among US and FB Latinos, and Whites. Implications for early prevention, multi-level interventions, and suggestions for future research are discussed. 相似文献
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The number of occupational diseases in Mexico is alarming and clearly it is important to do studies with the purpose of improving the design of workstations. The objective of this research is to determine the maximum force levels in different positions of shoulder and elbow. An experiment was conducted with 16 subjects between 18 and 28 years old: 8 male and 8 female. We considered 16 different positions, working with the right and left arm to perform the tasks of pull and push. The tasks consisted of pushing or pulling a dynamometer for a period of 3 seconds as hard as possible. The results were presented in tables. The tables show the mean, standard deviation and range of force levels in different positions. 相似文献
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Lopez-Millan F De la Vega E Lucero Duarte K Diaz Muro M 《Work (Reading, Mass.)》2012,41(Z1):5772-5774
This paper collects the experience for both, academic and professional practice, and deal with the stages and level of involvement from different elements in the organization. The work is focused in some kind of concentric cycles, the very outside circle is formed by those that interact with ergonomic process in a year period, and the inner cycles are those that acts in a daily or weekly intervention. The success of the program still depending on the good will of the managers, but any action directed on benefit of the people at work, enable the moral as well as indicators for health and safety. 相似文献
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Brian Karl Finch Reanne Frank William A. Vega 《The International migration review》2004,38(1):236-262
Utilizing a cluster sampling design to maximize representativeness, we look at the health effects of acculturation and acculturation stressors among 1,001 adult migrant farmworkers in Fresno, California. Using self‐ratings of mental and physical health as well as the CES‐D depression scale, we find that the amount of time one spends in the United States, the level of English‐language usage, as well as the intensity of acculturation stresses that one reports, are all related to declines in health. In addition, acculturation stress has more deleterious effects on self‐rated health (both physical and mental) among the more highly acculturated. 相似文献
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This paper introduces and characterises a class of inequality measures which extends the Atkinson family. This class contains
canonical forms of all aggregative inequality measures, each bounded above by one, provides a new dominance criterion for
ordering distributions in terms of inequality and offers some new graphical procedures for analysts. The crucial axiom for
the characterisation is an alternative to the standard additive decomposition property that we call ‘multiplicative decomposability,’
where the within-group component is a generalised weighted mean with weights summing exactly to one.
An erratum to this article can be found at 相似文献
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It is possible to partially order cities according to the informativeness of neighborhoods about their ethnic groups. It is also possible to partially order cities with two ethnic groups according to the Lorenz criterion. We show that a segregation order satisfies four well-established segregation principles if and only if it is consistent with the informativeness criterion. We then use this result to show that for the two-group case, the Lorenz and the informativeness criteria are equivalent. 相似文献
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The Pigou–Dalton bundle dominance introduced by Fleurbaey and Trannoy (Social Choice and Welfare, 2003) captures the basic idea of the Pigou–Dalton transfer
principle, demanding that, in the multidimensional context also, “a transfer from a richer person to a poorer one decreases
inequality”. However, up to now, this principle has not been incorporated to derive multidimensional inequality measures.
The aim of this article is to characterize measures which fulfil this property, and to identify sub-families of indices from
a normative approach. The families we derive share their functional forms with others having already been obtained in the
literature, the major difference being the restrictions upon the parameters. 相似文献
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M. Joseph Sirgy Dong-Jin Lee Stephan Grzeskowiak Grace B. Yu Dave Webb Karma El-Hasan Jose Jesus Garcia Vega Ahmet Ekici J. S. Johar Anjala Krishen Ayca Kangal Bernhard Swoboda C. B. Claiborne Filomena Maggino Don Rahtz Alicia Canton Ayse Kuruuzum 《Social indicators research》2010,99(3):375-390
This paper reports a study designed to further validate a measure of quality of college life (QCL) of university students (Sirgy, Grzeskowiak, Rahtz, Soc Indic Res 80(2), 343–360, 2007). Two studies were conducted: a replication study and an extension study. The replication study involved surveys of 10 different college campuses in different countries. The results of the replication study provided additional nomological (predictive) validation support of the measure based on a theoretical model mapping out the antecedents and consequences of satisfaction with college life. With respect to the extension study, the focus was to further test the nomological validity of the QCL measure by arguing and empirically demonstrating that the consequence of QCL is life satisfaction. The extension study involved a survey of three college campuses in different countries. The results were also supportive of the nomological validity of the QCL measure. 相似文献