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91.
Objective. In this article, we develop and test a model of competing theoretical explanations of Latino attitudes toward immigration; specifically examining their policy preferences on legal immigration, illegal immigration, and a proposed policy for dealing with illegal immigrants. We also consider whether Latino attitudes toward legal and illegal immigration are related and comprise a single coherent structure. Method. Using data from a 2004 national survey of Latinos, we perform regression, logit, and ordered logit analyses to examine the determinants of Latino attitudes toward immigration. Results. We highlight three important findings. First, our results demonstrate “within‐group” differences in immigration attitudes among Latinos, based on both national origin and generational status; we find that Mexicans are more pro‐immigration than Latinos from other countries and that foreign‐born Latinos have much more positive attitudes about immigration than second‐generation and third‐generation Latinos. Second, we find that Latino support for various aspects of immigration is primarily a function of ethnic and linguistic identity and attachment to American culture, with self‐interest, contextual variables, and political and demographic attributes playing a smaller, more specialized role. Finally, we demonstrate that Latino attitudes toward legal and illegal immigration are highly interrelated. Conclusion. There is a coherent structure underlying Latino attitudes toward legal immigration, illegal immigration, and a policy option for dealing with illegal immigrants. Our tests of competing theoretical approaches reveal the importance of national origin and ethnic attachment and acculturation in explaining differences among Latinos on their attitudes toward immigration.  相似文献   
92.
This paper summarises the results of a series of case studies in manufacturing innovation in the West Midlands. Concentrating on the materials forming industry, the paper considers the complex of factors and activities surrounding an innovation: the identification of a weakness; the generation of a solution; the implementation of change; and strategies of introduction. All of these aspects are interdependent, and it is suggested that it is only through adopting a broad perspective on the process of innovation that change can be satisfactorily explained.  相似文献   
93.
The purpose of this grounded theory study was to explore breast health practices of older Vermont women residing in rural communities. Although the three components of breast health-mammography, clinical breast exam, and self-breast exam-are recommended for women 40 years and over, minimal research has empirically analyzed the breast health practices of healthy women to ascertain if, in fact, these procedures are followed, and if so, what the motivation is for doing so. Twelve women, 50-64 years, participated in face-to-face, audiotaped interviews. Data analysis, including line-by-line and constant comparative approaches, occurred concurrently with data collection. Taking Charge of Self, the generated theory, describes participants' engagement in a process of learning how to take charge of their lives. The analysis indicates that health care providers have a powerful role in the lives of women in this age group. With an increasing emphasis on health promotion and disease prevention, health care providers are positioned to cultivate and support women's development of the personal or internal motivation for health and well-being.  相似文献   
94.
The Communities That Care Youth Survey measures risk and protective factors shown in prior studies to predict adolescent problem behaviors such as drug use, delinquency, and violence. This paper describes the development and validation of cut points for the risk and protective factor scales in the Communities That Care Youth Survey that distinguish youths at higher risk for involvement in problem behaviors from those at lower risk. Using these cut points, populations surveyed with this instrument can be described in terms of the proportions of youths experiencing risk and the proportions experiencing protection on each predictor. This facilitates communities' prioritization of specific factors for attention. This paper compares different cut points, and evaluates the discriminant validity of selected cut points. Results indicate that cut points with sufficient sensitivity and selectivity can be established for each of the scales, and that risk and protective factors can be profiled as prevalence rates. Implications of these findings for prevention planning are discussed.  相似文献   
95.
Employee voice has been studied across a diverse range of disciplines, generating an extensive body of literature on the topic. However, its conceptualization across the disciplines has differed, resulting in a lack of integrative theories and frameworks on employee voice. The main objective of this paper is to conduct a multidisciplinary review of the academic research on employee voice, to show where there is an opportunity to adopt and adapt the findings and research on employee voice within alternate disciplines, and to demonstrate how this may lead to more common ground in the conceptualization of employee voice. This review focuses on an analysis of the Human Resource Management/Employment Relations and Organizational Behaviour disciplines' conceptualization of employee voice, beginning with the identification of where the disciplines diverged in their concept and study of employee voice. Further, it maps their similarities and differences, on the basis of motive, content, mechanism, target and management of voice. Finally, it identifies opportunities to incorporate the alternate disciplinary perspective and proposes a conceptual model, which addresses the blind spots in each discipline. It is proposed that the consideration of formal and informal employee voice in future studies will enable the better integration of voice research.  相似文献   
96.
Running complex computer models can be expensive in computer time, while learning about the relationships between input and output variables can be difficult. An emulator is a fast approximation to a computationally expensive model that can be used as a surrogate for the model, to quantify uncertainty or to improve process understanding. Here, we examine emulators based on singular value decompositions (SVDs) and use them to emulate global climate and vegetation fields, examining how these fields are affected by changes in the Earth's orbit. The vegetation field may be emulated directly from the orbital variables, but an appealing alternative is to relate it to emulations of the climate fields, which involves high-dimensional input and output. The SVDs radically reduce the dimensionality of the input and output spaces and are shown to clarify the relationships between them. The method could potentially be useful for any complex process with correlated, high-dimensional inputs and/or outputs.  相似文献   
97.
98.
Receptive anal sex has high human immunodeficiency virus (HIV) transmission risk, and heterosexual substance-abusing individuals report higher anal sex rates compared to their counterparts in the general population. This secondary analysis evaluated the effectiveness of two gender-specific, evidence-based HIV-prevention interventions (Real Men Are Safe, or REMAS, for men; Safer Sex Skill Building, or SSSB, for women) against an HIV education (HIV-Ed) control condition on decreasing unprotected heterosexual anal sex (HAS) among substance abuse treatment-seeking men (n = 171) and women (n = 105). Two variables, engagement in any HAS and engagement in unprotected HAS, were assessed at baseline and three months postintervention. Compared to the control group, women in the gender-specific intervention did not differ on rates of any HAS at follow-up but significantly decreased their rates of unprotected HAS. Men in both the gender-specific and the control interventions reported less HAS and unprotected HAS at three-month follow-up compared to baseline, with no treatment condition effect. The mechanism of action for SSSB compared to REMAS in decreasing unprotected HAS is unclear. More attention to HAS in HIV-prevention interventions for heterosexual men and women in substance abuse treatment is warranted.  相似文献   
99.
Minimal studies have investigated individuals’ evaluations of antigay hate crimes and hate crime legislation simultaneously, with most research focusing on one or the other. In a sample of 246 heterosexual undergraduates, the present study found that evaluations of antigay hate crimes and hate crime legislation were unrelated. Higher social dominance orientation (SDO) and crime control orientation scores were associated with more positive evaluations of antigay hate crimes. Positive evaluations of hate crime legislation were associated with more positive attitudes toward gay men and lesbians. We also found that the relationship between SDO and evaluations were mediated by crime control beliefs (for hate crimes evaluations) and antigay attitudes (for hate crime legislation evaluations). The present findings have possible implications for the manner in which organizations advocate for the extension of hate crime legislation to include sexual orientation.  相似文献   
100.
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