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251.
252.
This exploratory study examined differences between elementary-age youth who have considered suicide and their peers using a data set that was collected from elementary school-age children (N = 51) who participated in an after-school program. Data were collected using a standardized survey assessing daily activities, social support, self-esteem, and antisocial behaviors. Youth considering suicide were distinctive from their peers in two composite measures representing club affiliation and illicit drug use. However, these two groups of youth did not differ in attitudes about school or a composite measure of worry, low confidence, and antisociality. These findings were interpreted as reflecting these vulnerable youths' ambivalence about seeking help, which presents an opportunity for intervention.  相似文献   
253.
Salvia divinorum is a new recreational drug where few studies have been conducted on its prevalence and predictors of use. Using a sample of undergraduate students, this study investigated these issues. While a small number reported experimenting with salvia, logistic regression models showed that demographics, marijuana use, and self-control are statistically significant predictors. The effect of gender on use was explained by low self-control; but the effect of marijuana use remained. Results also showed that White males who frequently smoke marijuana and have extremely low self-control are most likely to use salvia. Limitations and future research are discussed.  相似文献   
254.
Although forensic signature examination is considered to be an identification science, it is a theoretical possibility that an individual may learn to forge another person's signature that is free from indications of simulation behaviours. This proposition was tested in a signature blind trial that was administered to 42 forensic handwriting examiners (FHEs). Participants expressed opinions on the authorship of 100 questioned signatures. The questioned signatures comprised a mixture of genuine, disguised and simulated signatures. Calligraphers formed part of the population of individuals who provided simulated signatures for the trial. A total of 3100 opinions were expressed of which 1254 were correct, 224 misleading and 1622 were inconclusive. Of the opinions expressed regarding the simulated signatures, the misleading score for the calligraphers' forgeries were approximately four times that of the lay persons' forgeries. These results provide strong evidence in support of the proposition that calligraphers are more skilled at simulating signatures than are lay people and can produce forgeries that some FHEs have difficulty detecting.  相似文献   
255.
Using the rate of development of blowflies colonising a corpse, accumulated degree hours (ADH), or days (ADD), is an established method used by forensic entomologists to estimate the post-mortem interval (PMI). Derived from laboratory experiments, their application to field situations needs care. This study examines the effect of the post-feeding larval dispersal time on the ADH and therefore the PMI estimate. Post-feeding dispersal in blowfly larvae is typically very short in the laboratory but may extend for hours or days in the field, whilst the larvae try to find a suitable pupariation site. Increases in total ADH (to adult eclosion), due to time spent dispersing, are not simply equal to the dispersal time. The pupal period is increased by approximately 2 times the length of the dispersal period. In practice, this can introduce over-estimation errors in the PMI estimate of between 1 and 2 days if the total ADH calculations do not consider the possibility of an extended larval dispersal period.  相似文献   
256.
We report on a prospective follow-up (mean 3.1 years) of 22 children with anorexia nervosa (mean age at onset—12.1). Adequate information was obtained for 18 children. The specific outcome was good in 10 (55.5%), intermediate in 5 (27.8%), and poor in 3 (16.7%); none had died. No prognostic factors were identified. The findings are compared with those from the long term follow-up of a previous cohort of children with anorexia nervosa, and confirm the unsatisfactory prognosis for this age group.Major research interest concerns the etiology and treatment of eating disorders in children and adolescents.Has been with the Eating Disorders Research Team since 1992. His major interest is research methodologyHas been with the eating disorders Research Team since 1989. Her major interests are in obsessional-compulsive problems and eating disorders in children.Major research interests include eating disorders in children and adolescents, cystic fibrosis, the effects of transplantation in children and adherence to treatment. Chief Editor ofClinical Child Psychology and Psychiatry. Has been collaborating with the Eating Disorders Research Team since 1985.  相似文献   
257.
258.
The nature of policy work in nongovernment organizations (NGOs) is important consideration when understanding policy co-construction. Based on the results from a Canadian web-based survey of policy workers across five fields across three provinces, a multi-regression structural equation model suggests how NGO policy work can contribute to a greater collaboration on key policy issues and greater policy interaction between societal organizations and government agencies. The frequency of formal and informal invitations by governments played an important role in terms of the overall levels of interaction and stakeholder input. Networking activity was found to be important when addressing consultative-related issues, but only with NGO networks or their clients. Involvement in the early stages of policy development by the NGO policy workers did not lead to greater engagement with government officials, which may be a potential problem when their advice is sought after.  相似文献   
259.
Abstract

Prior sentencing research indicates that defendants with more extensive criminal histories receive more punitive dispositions and that criminal history influences sentencing decisions over and above its influence on the guideline recommended sentence. To date, these additional effects of criminal history have almost exclusively been treated as linear effects. However, there are plausible reasons to expect that criminal history could have curvilinear effects on sentencing outcomes that taper off at higher scores. The purpose of this paper is to explore the potential curvilinear effects of defendant criminal history on incarceration, sentence length, and downward departure decisions in federal criminal courts. The findings suggest that criminal history has curvilinear effects on each of these sentencing outcomes. As criminal history category increases, defendants receive more severe sentences, net of other factors, but only up to a certain threshold level, at which point criminal history effects taper off and even reverse.  相似文献   
260.
We describe and compare the experiences of academic exclusion of Alexander Del Mar, J.A. Hobson, and Gordon Tullock. While aspects of the circumstances differed, a common element was academic exclusion because of challenges to mainstream views. Alexander Del Mar, J.A. Hobson, and Gordon Tullock were in due course recognized for the originality and merit of their contributions, although each incurred personal costs because of the exclusion by the academic elites of their time. Our study takes us into the role of ideologically based prejudice in judgment of the worthiness of economic ideas.  相似文献   
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