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611.
Since 1991, the evidence‐in‐chief of child witnesses in United Kingdom (UK) criminal proceedings can be an initial video‐recorded interview between a police officer/social worker and the child witness. This paper reports on the results of a survey of the attitudes and opinions of police officers who conduct video interviews with child witnesses in 18 police forces in England and Wales. Notably, officers' views were sought on the conduct of interviews. This builds on previous surveys which have focused on general views of videotaping children's evidence (for example, Davies and others 1995) and training issues (for example, Davies, Marshall and Robertson, 1998). Our findings support previous reports in that police officers view current provisions for child witnesses as a step in the right direction (Davies and others, 1995) but there are some reported limitations for example, gaps in training (Davies, Marshall and Robertson, 1998). In addition, we highlight the difficulties that can arise in relation to language use and some differences of opinion amongst officers (for example, with respect to the use of props in interviewing). Copyright © 2000 John Wiley & Sons, Ltd.  相似文献   
612.
Simulation of stationary Gaussian vector fields   总被引:2,自引:0,他引:2  
Chan  G.  Wood  A. T. A. 《Statistics and Computing》1999,9(4):265-268
In earlier work we described a circulant embedding approach for simulating scalar-valued stationary Gaussian random fields on a finite rectangular grid, with the covariance function prescribed. Here, we explain how the circulant embedding approach can be used to simulate Gaussian vector fields. As in the scalar case, the simulation procedure is theoretically exact if a certain non-negativity condition is satisfied. In the vector setting, this exactness condition takes the form of a nonnegative definiteness condition on a certain set of Hermitian matrices. The main computational tool used is the Fast Fourier Transform. Consequently, when implemented appropriately, the procedure is highly efficient, in terms of both CPU time and storage.  相似文献   
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This study sought to: (1) determine the prevalence of gambling disorder using the Diagnostic and Statistical Manual of Mental Disorders Version 5 (DSM-5; American Psychiatric Association in Diagnostic and statistical manual of mental disorders, American Psychiatric Publishing, Arlington, 2013) criteria; (2) identify the frequency and amount of money spent on gambling behaviors; and (3) determine demographic and treatment related predictors associated with gambling disorder in a substance using population. People receiving methadone maintenance treatment (N = 185) in an urban medical center consented to participate in the study. We used DSM-5 criteria to assess the 12-month prevalence of gambling disorder. Questions adapted from a previously developed measure were used to identify, describe and quantify the frequency of use and amount of money spent on gambling behaviors. Most participants were African-American (71.4 %), male (54.1 %), unmarried (76.8 %), unemployed (88.1 %) and had an income of <$20,000 (88.5 %). On average, participants were receiving 81.0 mg of methadone (SD: 22.8) daily. Nearly half (46.2 %) of participants met DSM-5 criteria for gambling disorder. Compared to those without gambling disorder, those with gambling disorder did not differ significantly with respect to demographic characteristics nor methadone dose. However, those with gambling disorder had been in methadone maintenance treatment for significantly less time. Those with gambling disorder were significantly more likely to report engaging in a variety of gambling behaviors. Given that the 12-month prevalence of DSM-5 defined gambling disorder was nearly 50 % future efforts to screen and treat gambling disorder in the context of methadone maintenance treatment are clearly warranted.  相似文献   
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As interest grows in the subject of sport, play and games as social practice, it becomes more important to elaborate on the contribution serious leisure makes in the formation of hegemonic power and the margins of everyday life. There are alternative models of what constitutes serious leisure and in particular the experience of leisure transgression. Case study based qualitative data are presented which illuminate several important influences within two settings featuring the adventure activity of rock climbing. I suggest that organisation and organising is one of a range of factors impinging on the theme of serious leisure. An implication is that climbers in the present may have more difficulty than did their predecessors in resisting both the encroachment of rationalised society and capture by market driven forces.  相似文献   
618.
Using data from the 1995 and 2006–2010 National Survey of Family Growth, the authors' study examined children's family instability from birth to age 12, emphasizing variation by racial and ethnic group. Period and cohort estimates revealed little change in children's experiences of family transitions during the past decade. Family instability levels were comparable for White and Hispanic children, and this pattern persisted over time. However, there was an increase in family instability among Black children, reflecting growth in the share of children born to single mothers who eventually formed partnerships. Indeed, children born to single mothers in the more recent cohort experienced more family transitions, on average, than did the earlier cohort, but family instability for children born to cohabiting mothers remained unchanged. This study elucidates the various family life course trajectories children experience, revealing how these patterns differ depending on family context at birth and by racial and ethnic group.  相似文献   
619.
The career development literature published in 2008 is summarized and presented thematically: (a) professional issues, (b) career assessment, (c) career development, (d) career theory and concepts, (e) career interventions, (f) advances in technology, (g) employment, (h) international perspectives, and (i) research design and methodology. Traditional and emerging theories and practices are robust and vibrant.  相似文献   
620.
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