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131.
The school being one of the most important ‘faces’ of the state at the local level in the Democratic Republic of the Congo, investment in education can play an important role in reconstructing the social contract between the population and the state after violent conflict. However, this is particularly difficult since the state has largely retreated from the education sector since the 1980s, and education is now organised through public‐private partnerships with religious networks. Moreover, schools have been turned into tax units, in response to the retreat of the state and the declining wages of school administrators. This has had a clear effect on donor interventions, which, instead of changing the current system, have become part of existing configurations and led to an expansion of the current system.  相似文献   
132.
Seemingly unrelated regression models and growth curve models are examples of multivariate models that require special estimation techniques. Parameters in seemingly unrelated regression models can be estimated by using two-stage Aitken estimation based on unrestricted residuals; parameters in growth curve models can be estimated by using a Potthoff-Roy (1964) transformation based on an estimate of the dispersion. With proper choice of the seemingly unrelated regression model, the two multivariate models and corresponding parameter estimates are shown to be equivalent. Recognition of the equivalence simplifies the presentation of these more complicated multivariate models. The connection is also of interest for more flexible growth curve models.  相似文献   
133.
The decline of the family meal is a popular concern in contemporary Western society. This article assesses how commensality patterns have evolved in Belgium over the last four decades and which factors have an impact on commensality. The study uses Belgian time-budget data from 1966 and 1999 to obtain an insight into the evolution of commensality patterns. Flemish time-use data from 2004 are used to determine the factors that affect commensality patterns. It is concluded that there has been a significant decrease in family commensality between 1966 and 1999, while eating has become more individualized during the same period. This holds for all days of the week and for breakfast, lunch and dinner. The data also revealed that a number of factors that are often assumed to entail the individualization of eating practices, such as the increased availability of products for self-catering, have little impact on commensality patterns in practice. The factor with the strongest impact on commensality patterns is living arrangements. People who live alone generally do not have anyone with whom to share their meals. Married and cohabiting couples, on the other hand, tend to eat together on a regular basis, while parents still share the majority of meal-times with their co-resident children.  相似文献   
134.
This five‐wave longitudinal study examines linkages between adolescents' perceptions of romantic relationship commitment and the development of adolescents' perceptions of commitment to parents and friends. A total of 218 early‐to‐middle adolescents (39.0 percent boys) and 185 middle‐to‐late adolescents (30.8 percent boys) participated. Multivariate growth curves showed that higher base levels of commitment and a stronger positive development of commitment to parents and friends were associated with higher levels of later commitment to romantic partners. The effects were equally strong in early‐to‐middle adolescence and middle‐to‐late adolescence. Also, commitment to parents and commitment to friends were associated equally strong to romantic relationship commitment. No gender differences were found regarding these linkages. Overall, this study shows the importance of parents and friends for boys and girls regarding committed romantic relationships. The results support the idea of one stable and general working model used in different types of relationships.  相似文献   
135.
Interest in utilizing technology to help older adults remain living at home is growing; however, uptake remains low. We present a conceptual framework for understanding independent living technology innovation within health and social services. Public policy and innovation in the United States, the United Kingdom, and Scandinavia are profiled as case studies. In all profiled countries, independent living technology is more rapidly advancing than associated state policy, regulation, and payment systems. The findings from this comparative analysis reveal areas for further exploration, including policy subsystem environments in which technologies and services are regulated, as well as trends and desires of older adults and their caregivers within particular cultural contexts.  相似文献   
136.
Researchers have suggested that child sex offenders hold distorted views on social interactions with children. Misinterpreting children’s behavior and intentions could lead to sexually abusive behavior toward children. It is further suggested that the interpretation process is influenced by offenders’ offense-supportive cognitions and levels of empathy. To examine the relationships between these three concepts, 47 contact offenders completed self-reports on offense-supportive cognitions and empathy. Vignettes were developed to assess the extent to which offenders attributed responsibility, benefit, and complicity to children in hypothetical child molestation incidents. This study showed that cognitions that justify sexual offending against children seem to diminish the threshold for sexual assault by assigning more cooperation and willingness of the victim in a child molestation incident.  相似文献   
137.
客户回报率是衡量公司通过客户创造价值能力的惟一现有指标由于越来越多的企业争夺有限的客户群,精明的企业逐渐将关注点转向客户——如何维系及培养高价值的客户。近来,客户管理专家唐·佩勃斯与玛莎·罗杰斯提出了一个新指标:客  相似文献   
138.
This paper discusses work with a parent in a foster care situation. A case example is used to demonstrate the value of a model of a parentchild relationship for therapeutic work with seemingly unmotivated clients such as parents whose child is in foster care.  相似文献   
139.
140.
The Additive Genetic Gamma Frailty Model   总被引:1,自引:0,他引:1  
In this paper the additive genetic gamma frailty model is defined. Individual frailties are correlated as a result of an additive genetic model. An algorithm to construct additive genetic gamma frailties for any pedigree is given so that the variance–covariance structure among individual frailties equals the numerator relationship matrix times a variance. The EM algorithm can be used to estimate the parameters in the model. Calculations are similar using the EM algorithm in the shared frailty model, however the E step is not correspondingly simple. This is illustrated re-analysing data, analysed by the shared frailty model in Nielsen et al . (1992), from the Danish adoptive register. Goodness of fit of the additive genetic gamma frailty model can be tested after analysing data with the correlated frailty model. Doing so, a "defect" in the often used and otherwise well behaving likelihood was found  相似文献   
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