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Population Research and Policy Review - Disparities in health insurance coverage and access to care are well documented between sexual minority adults and their heterosexual peers. Much less... 相似文献
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Sex-dependent associations between daily physical activity and leg exercise blood pressure responses 总被引:1,自引:0,他引:1
Gonzales JU Grinnell DM Kalasky MJ Proctor DN 《Journal of aging and physical activity》2011,19(4):306-321
The authors examined interindividual and sex-specific variation in systolic (SBP) and diastolic (DBP) blood pressure responses to graded leg-extension exercise in healthy older (60-78 yr) women (n = 21) and men (n = 19). Maximal oxygen uptake (VO2max), body composition, physical activity (accelerometry), and vascular function were measured to identify predictors of exercise BP. Neither VO2max nor activity counts were associated with the rise in SBP or DBP during exercise in men. The strongest predictors of these responses in men were age (SBP: r2 = .19, p = .05) and peak exercise leg vasodilation (DBP: r2 = -.21, p < .05). In women, the modest relationship observed between VO2max and exercise BP was abolished after adjusting for central adiposity and activity counts (best predictors, cumulative r2 = .53, p < .05, for both SBP and DBP). These results suggest that determinants of variation in submaximal exercise BP responses among older adults are sex specific, with daily physical activity influencing these responses in women but not men. 相似文献
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Probabilistic Relational Models (PRMs) are a framework for compactly representing uncertainties (actually probabilities). They result from the combination of Bayesian Networks (BNs), Object-Oriented languages, and relational models. They are specifically designed for their efficient construction, maintenance and exploitation for very large scale problems, where BNs are known to perform poorly. Actually, in large-scale problems, it is often the case that BNs result from the combination of patterns (small BN fragments) repeated many times. PRMs exploit this feature by defining these patterns only once (the so-called PRM’s classes) and using them through multiple instances, as prescribed by the Object-Oriented paradigm. This design induces low construction and maintenance costs. In addition, by exploiting the classes’ structures, PRM’s state-of-the-art inference algorithm “Structured Variable Elimination” (SVE) significantly outperforms BN’s classical inference algorithms (e.g., Variable Elimination, VE; Local Conditioning, LC). SVE is actually an extension of VE that simply exploits classes to avoid redundant computations. In this article, we show that SVE can be enhanced using LC. Although LC is often thought as being outperformed by VE-like algorithms in BNs, we do think that it should play an important role for PRMs because its features are very well suited for best exploiting PRM classes. In this article, relying on Faÿ and Jaffray’s works, we show how LC can be used in conjunction with VE and deduce an extension of SVE that outperforms it for large-scale problems. Numerical experiments highlight the practical efficiency of our algorithm. 相似文献
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Monica M. Trieu Nicholas Vargas Roberto G. Gonzales 《Journal of ethnic and migration studies》2016,42(7):1177-1198
A growing literature has examined the prevalence of transnational engagement among children of immigrants. However, few studies have been equipped to analyse underlying dynamics that serve to impede or perpetuate transnational practices among them in the United States. In this article, we compare transnationalism narratives between 1.5- and second-generation children of immigrants to more fully adjudicate enduring transnational ties over time. Our analysis of 134 interviews from the Children of Immigrants Longitudinal Study suggests that children of immigrants from Southern California conceptualise transnational experiences in diverse but remarkably similar ways. The meanings attached to transnational behaviours and identities employ certain patterns, and are often related to strength of kin-based ties, ethnic language fluency, and levels of structural access to the homeland. Moreover, findings indicate that the second-generation is nearly as transnationally engaged as the 1.5-generation. This provides novel but limited evidence in support of claims that transnational ties are sustained across generations. 相似文献
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Diana Formoso Nancy A. Gonzales Manuel Barrera Larry E. Dumka 《Journal of marriage and the family》2007,69(1):26-39
This study examined independent and interactive relations between the interparental relationship and maternal employment in predicting fathering within low‐income, Mexican American two‐parent families (N = 115). Interparental conflict was negatively related to quality fathering, and these relations were noted only for single‐earner families. The parenting alliance was positively related to quality fathering irrespective of maternal employment. Fathering was associated with lower levels of child depression and conduct problems. Results suggest that bolstering quality fathering is a useful avenue for improving child well‐being and that strengthening the interparental relationship can support quality fathering and child mental health within Mexican American families. 相似文献
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William R. Freudenburg Cynthia-Lou Coleman James Gonzales Catherine Helgeland 《Risk analysis》1996,16(1):31-42
Despite the widespread conviction that the mass media tend to “blow risks out of proportion,” the question has received little systematic attention. The mass-media literature also presents the opposite argument, namely that the media minimize the kinds of reporting that might upset large-scale capitalistic industries. Still other perspectives hold, on the one hand, that media reports tend to have more subtle anti-technology effects, created by “even-handed” coverage and on the other hand, that reporters give “establishment” figures the opportunity to “keynote” or “put the facts in perspective” in ways that exert a subtly pro-technology effect. Drawing on a systematic sample of 128 hazard events developed by researchers at another university and factually summarized by Lexis -Nexis , we analyze the effects of emotionalism on actual levels of coverage; a variety of analyses show that the only variables to exert significant effects are those that involve objective information, such as the number of casualties or the level of damage created. Given the argument that the effects of emotionalism can be conveyed in ways that are largely independent of the facts, e.g., by headlines, photographs, and “loaded” words, we next compare the emotionalism conveyed by factual summaries vs. the original stories and headlines. Even for incidents involving nuclear and/or toxic hazards, we find the net effect of the full stories is to lessen the emotionalism. Overall, the hypothesis receiving strongest support is that the “keynoting” helps create an overall impression that the “responsible authorities” are acting more responsibly than might be assumed on the basis of factual summaries alone. The widespread impression within the technical community, while understandable, may well have as much to do with the selective perceptions of scientists and engineers as with the actual pattern of media reporting. 相似文献
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Neighborhood Qualification of the Association Between Parenting and Problem Behavior Trajectories Among Mexican‐Origin Father–Adolescent Dyads 下载免费PDF全文
Rebecca M. B. White Yu Liu Nancy A. Gonzales George P. Knight Jenn‐Yun Tein 《Journal of research on adolescence》2016,26(4):927-946
To address the combined importance of fathers and neighborhoods for adolescent adjustment, we examined whether associations between fathers' parenting and adolescents' problem behaviors were qualified by neighborhood adversity. We captured both mainstream (e.g., authoritative) and alternative (e.g., no‐nonsense, reduced involvement) parenting styles and examined parenting and neighborhood effects on changes over time in problem behaviors among a sample of Mexican‐origin father–adolescent dyads (N = 462). Compared to their counterparts in low‐adversity neighborhoods, adolescents in high‐adversity neighborhoods experienced greater initial benefits from authoritative fathering, greater long‐term benefits from no‐nonsense fathering, and fewer costs associated with reduced involvement fathering. The combined influences of alternative paternal parenting styles and neighborhood adversity may set ethnic and racial minority adolescents on different developmental pathways to competence. 相似文献
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Jaymes Gonzales 《Journal of divorce & remarriage》2013,54(2):148-157
According to the literature, approximately 50% of all Americans have some kind of step-relationship. Living in a blended family has become more commonplace, as have significant issues related to family members' adjustment to and day-to-day maintenance of them. In the majority of instances, blended families enter into life together with little awareness of what to expect, common problems blended families experience, and plausible solutions to the difficulties often faced. Based on the current literature and clinical experience, preblended family counseling, a framework approach that brings family members together prior to remarriage or cohabitation, has been developed. 相似文献