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81.
Current Control of a continuous random variable is investigated without assuming a normal distribution. The sign test is used as test procedure. The parameters of the corresponding control chart are to be determined in such a way that in the long run the expected loss per produced item is minimal. Approximation formulas for the parameters of such an optimum control chart are derived and discussed.  相似文献   
82.
Objective. Local government officials exhibit a variety of responses to morality issues involving “decency” (i.e., pornography, prostitution, sexually explicit businesses). The purpose of this research is to account for these differences. Methods. This research analyzes a subset of data from a larger study of morality policy making at the local level, that is, all cases of decision making on decency issues (e.g., pornography, prostitution, regulation of sexually explicit businesses, etc.) that occurred in the period 1994–2000 in 10 of the 52 largest cities in the United States. Results. In mayoral settings, decision making on decency cases is likely to evoke pro‐decency action from officials when a high level of issue salience is combined with high levels of church adherence, low levels of women's political empowerment, low levels of fundamentalist religious attachment, and higher levels of per capita income. Officials in city manager settings act more favorably toward decency activists if (1) higher levels of salience combine with a lower prevalence of fundamentalist religious adherents and higher levels of per capita income or (2) there is an interaction of salience and low levels of female political empowerment and high unemployment. Conclusions. Although exploratory in nature, the results confirm conventional expectations concerning the importance of salience and the prevalence of church affiliation; the results are counterintuitive with respect to the prevalence of fundamentalist forces and the extent of female political empowerment.  相似文献   
83.
SUMMARY. The following is an account of a research project exploring the recollections of seven fathers at the time of the birth of their children with Down's Syndrome. It discusses the disclosure of diagnosis and subsequent contacts the fathers made both professionally and socially during the period following both in the hospital and at home. This is combined with the personal recollections of one father, not part of the original study, whose child was born with special needs. The implications for both professional practice and fathers are highlighted. Whilst there is an acknowledgement that the project was small scale, the conclusions will raise challenging issues for further discussion both among professionals and individual members of families.  相似文献   
84.
This paper reviews recent information and data relevant to the commercial sexual exploitation of children and young people in the UK. Three main aspects of exploitation are addressed: abuse through prostitution; abuse through pornography; and the trafficking of children and young people to and through the UK for the purposes of commercial sexual exploitation. Most published research in this area relates to young people exploited through prostitution. The review explores the range of vulnerability factors, the processes used to engage young people in prostitution and the types of support strategies for those being exploited. Rather less information is currently available on the scale of child pornography, or the links between the use of pornography and other forms of sexual abuse. The internet as a modern technology for proliferating child pornography is discussed, alongside its role in providing opportunities for paedophiles to access and ‘groom’ children for sexual purposes. Finally, the review provides a summary of research on trafficking of children to and through the UK for the purposes of commercial sexual exploitation and demonstrates the limited knowledge about this topic. Copyright © 2005 John Wiley & Sons, Ltd.  相似文献   
85.
86.
The paper proposes a joint mixture model to model non-ignorable drop-out in longitudinal cohort studies of mental health outcomes. The model combines a (non)-linear growth curve model for the time-dependent outcomes and a discrete-time survival model for the drop-out with random effects shared by the two sub-models. The mixture part of the model takes into account population heterogeneity by accounting for latent subgroups of the shared effects that may lead to different patterns for the growth and the drop-out tendency. A simulation study shows that the joint mixture model provides greater precision in estimating the average slope and covariance matrix of random effects. We illustrate its benefits with data from a longitudinal cohort study that characterizes depression symptoms over time yet is hindered by non-trivial participant drop-out.KEYWORDS: Latent growth curve, MNAR drop-out, survival analysis, finite mixture model, mental health  相似文献   
87.
This paper discusses findings from a recently completed study of adolescent foster care, which included a detailed assessment of the parenting approaches and strategies used by the foster carers of adolescents in long‐term placements. Sixty‐eight foster carers were interviewed at two points in time. The first interview was conducted two months after the start of a new adolescent placement and the second after the placement had been continuing for a year, or at the point of disruption if this occurred earlier. The interview schedules were designed specifically for this study and were based upon well‐established techniques developed in other studies of parenting. They enabled the researchers to make summary ratings for each carer on established dimensions of parenting such as control and discipline, responsiveness and the level of engagement with the child. The researchers assessed how these strategies changed and developed in relation to the young person's behaviour and whether these approaches influenced either the likelihood of placement disruption or the quality of the placement for the child. This paper describes the parenting strategies used by the foster carers, highlighting the areas of parenting that significantly affected the placement outcomes and the corresponding implications for policy and practice.  相似文献   
88.
The effectiveness of researchers in infancy is conditioned by their participation in 3 agendas. The academic agenda is devoted to the question of understanding infants, the social agenda is devoted to the question of how to improve the life of infants, and the political agenda is devoted to finding the resources for both understanding and improvement. Amplification is provided for each agenda with attention to the evolution of theoretical frameworks used by infancy researchers.  相似文献   
89.
90.
The interface between two major UK Government priorities—reducingunwanted teenage pregnancies and supporting teenage parents,and improving the health and well-being of young people in andleaving local authority care—has been the focus of recentresearch. The overall aims of this study were to explore factorscontributing to early pregnancy and parenthood among young peoplein and leaving local authority care; to determine the kindsof support available to these young people; and to identifywhat enables or prevents the delivery of the support they need.Via in-depth interviews, and in four contrasting geographicalareas, data were collected from young people and service providersacross England. This paper analyses data of relevance to theexperience of young fathers who have been looked after—toconsider how the needs of these young men might be better addressedthrough policy and practice. In-depth interviews conducted withyoung fathers and service providers highlighted three key aspectsof their experience that must be addressed if future needs areto be better provided for. These are: social exclusion, trustand more flexible forms of service provision. The implicationsof these issues for future policy and programme developmentare discussed.  相似文献   
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