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951.
Kennedy C 《Journal of psychosocial nursing and mental health services》2004,42(12):8; author reply 8
952.
Until quite recently, the Chinese pension system was an enterprise-based, pay-as-you-go, defined benefit scheme. In 1995, the decision was made to shift to a multi-pillar scheme that included a second funded defined contribution pillar. The transition is proving difficult. This article outlines an alternative second pillar that may make more sense for China, a pay-as-you-go notional defined contribution (NDC) pillar. This article has three goals: (1) to provide a brief history of pension policy in China, (2) to describe the NDC model, and (3) to assess the relative merits of the NDC alternative as a possible option for China. 相似文献
953.
Vickers KS Patten CA Bronars C Lane K Stevens SR Croghan IT Schroeder DR Clark MM 《Journal of American college health : J of ACH》2004,53(3):133-140
As an initial step in building gender-specific binge drinking intervention programs, the authors investigated the relation of potentially modifiable factors (physical activity level, weight concern, and depressive symptoms) to binge drinking while controlling for the effects of previously established correlates of binge drinking (tobacco and marijuana use, GPA, and perception of peer alcohol use). Four-hundred-twelve college women completed an in-class survey. Multivariate analyses revealed that tobacco and marijuana use, GPA, and physical activity were significantly associated with binge drinking, whereas tobacco use and perception of peers' alcohol use were associated with more frequent binge drinking. The findings suggested that the variables associated with any binge drinking and frequency of binge drinking may differ and that binge drinking can be associated with positive health behaviors (ie, greater physical activity) as well as risky health behaviors (eg, tobacco use). 相似文献
954.
955.
Trauma symptoms, sexual behaviors, and substance abuse: correlates of childhood sexual abuse and HIV risks among men who have sex with men 总被引:1,自引:1,他引:0
Childhood sexual abuse is associated with high-risk sexual behavior in men who have sex with men. This study examined psychological and behavioral correlates of HIV risk behavior associated with childhood sexual abuse in a sample of men who have sex with men. Men attending a large gay pride event (N = 647) completed anonymous surveys that assessed demographic characteristics, childhood sexual abuse history, symptoms of dissociation and trauma-related anxiety, borderline personality characteristics, substance use, and sexual risk behavior. Results indicated that men who have a history of childhood sexual abuse were more likely to: engage in high-risk sexual behavior (i.e., unprotected receptive anal intercourse), trade sex for money or drugs, report being HIV positive, and experience non-sexual relationship violence. Results of this study extend previous research to show that men who have sex with men and who have a history of child sexual abuse are more likely to be at high risk for HIV infection. 相似文献
956.
Crumpton Franey K Viglione DJ Wayson P Clipson C Brager R 《Journal of child sexual abuse》2004,13(3-4):295-317
Little is known about the characteristics of adolescent sex offenders who do not reoffend. Most studies emphasize reoffense rates, recidivism and those who reoffend. Moreover, these studies provide quantitative summaries without describing the individual, his behavior, and challenges after treatment. The present study seeks to provide novel information about the life experiences of adolescent sex offenders who have not reoffended after reentering society. Through a structured questionnaire and an in-depth qualitative interview, the adolescents (N = 7) provided information regarding their life experiences after treatment with an emphasis on the challenges they face in society. 相似文献
957.
958.
Mizuno T Shu IW Makimura H Mobbs C 《Science of aging knowledge environment : SAGE KE》2004,2004(24):re4
Obesity in middle-aged humans is a risk factor for many age-related diseases and decreases life expectancy by about 7 years, which is roughly comparable to the combined effect of all cardiovascular disease and cancer on life span. The prevalence of obesity increases up until late middle age and decreases thereafter. Mechanisms that lead to increased obesity with age are not yet well understood, but current evidence implicates impairments in hypothalamic function, especially impairments in the ability of hypothalamic pro-opiomelanocortin neurons to sense nutritional signals. The rapid increase in the prevalence of obesity at all ages in the past decade suggests that, in the next two or three decades, diseases associated with obesity, especially diabetes, will begin to rise rapidly. Indeed, these trends suggest that for the first time in modern history, the life expectancy of people in developed societies will begin to decrease, unless the rapid increase in the prevalence of obesity can be reversed. 相似文献
959.
In this paper, we propose a frailty model for statistical inference in the case where we are faced with arbitrarily censored and truncated data. Our results extend those of Alioum and Commenges (1996), who developed a method of fitting a proportional hazards model to data of this kind. We discuss the identifiability of the regression coefficients involved in the model which are the parameters of interest, as well as the identifiability of the baseline cumulative hazard function of the model which plays the role of the infinite dimensional nuisance parameter. We illustrate our method with the use of simulated data as well as with a set of real data on transfusion-related AIDS. 相似文献
960.