Academic potential among African American adolescents in juvenile detention centers: Implications for reentry to school

The study explores Black adolescent detainees academic potential and motivation to return to school to inform best practices and policies for juvenile reentry to educational settings. Adolescent detainees (N = 1,576) who were recruited from one male and one female youth detention facility, responded to surveys that assessed post-detention educational plans, as well as social and emotional characteristics, and criminal history. Multivariate analysis techniques were used to compare factors across race and gender, and plot linear relationships between key indicators of academic potential with associate factors. Findings revealed that youth were more likely to evince academic potential when they had a healthy level of self-esteem, adequate future goal orientation, positive mood, family and community involvement, fewer traumatic events, and less delinquent activity.     

证据法的理论基础和意义

证据和证据法是两个截然不同的概念。证据一般是指在裁决过程中能以理性方式影响最终判决结果的那些输入信息。理性方式是这里引入的第三个概念。在美国,证据还有一个专业性法律意义,特指在审判中提出的证言和展示件,但这是一个存在争议的定义。在美国,事实认定者(陪     

证据与推论——兼论概率与似真性(英文)

今天的讲座和前四讲有一些不同。在前四讲中,我所分析的都是证据法的公认领域,试图说明我们何以能够通过运用各种分析工具来更深刻地理解它们。今天我不想讨论证据法的传统领域,而要讨论在美国和其他几个国家正在进行的一项重要研究工作,这涉及我们所称的司法证明的性质。该研究领域并不论及像传闻规则那样的证据法特定领域,而是关于证据法根基的探讨。     

Trends and pattern of drug abuse deaths in Maryland teenagers

The Office of the Chief Medical Examiner of Maryland recorded a total of 149 drug abuse deaths of teenagers aged 13-19 years between 1991 and 2006. Of these deaths, 96 (64.4%) were caused by the use of narcotic drugs only, 29 (19.5%) by both narcotics and cocaine, four (2.7%) by both narcotics and methylenedioxymethamphetamine, six (4.0%) by cocaine only, and 14 (9.4%) by volatile substances (e.g., butane, Freon, nitrous oxide, and propane). The annual death rate from drug abuse for teenagers increased from 1.4 deaths per 100,000 population in 1991 to 2.7 deaths per 100,000 population in 2006 (chi-square test for time trend, p<0.01). The increase in teenager drug abuse deaths occurred in 1999 and since has remained at a higher rate. Further analysis revealed that the increase in drug abuse deaths was attributable to a large degree to narcotic drugs, particularly heroin/morphine and methadone, and was confined to teenagers residing in the suburban and rural areas.     

Ethyl glucuronide in hair - A highly effective test for the monitoring of alcohol consumption

In Germany drink driving offenders lose their license and must prove abstinence for one year in order to regain it. In this paper we assess the newly introduced ethyl glucuronide (EtG) tests in urine and hair in this alcohol abstinence monitoring. 20% (80 out of 386) of the 3cm long hair samples were tested positive for EtG in hair, compared to only 2% (92 out of 4248 samples) in urine in the same time period. Additionally 50% of the samples positive for EtG in hair had EtG values greater than 30pg/mg hair, indicating chronic alcohol consumption in the last three months. This study shows that four EtG tests in 3cm hair lengths reveal a significantly higher percentage of drink driving offenders who fail to be sober in the rehabilitation period, than do six random EtG tests in urine. Presumably, the hair test is more adequate to monitor long term alcohol abstinence than the urine test as defined by the new driving license re-granting medical and psychological assessment (MPA) in Germany.     

Can ethyl glucuronide in hair be determined only in 3 cm hair strands?

This paper addresses the suitability of ethyl glucuronide in hair (EtGH) strands other than 3cm for alcohol consumption. This issue will be addressed (a) by statistically comparing the distribution of EtGH results for 3cm hair strands to other hair strands analysed from 4126 cases and (b) by examining the stability of EtGH in an 8cm hair strand and two 12cm hair samples of two volunteers and a post-mortem case using 1cm segmental analysis. For 3464 driving license re-granting Medical and Psychological Assessment (MPA) cases, the detection of alcohol consumption using hair lengths longer than 3cm was never significantly less than for 3cm hair lengths, even up to 12cm hair lengths analysed non-segmented. For 662 non-MPA cases, where, in contrast to MPA cases, generally no abstinence was required, an increase in the EtGH positivity rate was observed with increasing hair length analysed up to 9cm, indicating that EtG-washout effects seem to play a minor role if any. For both MPA and non-MPA hair samples less than 3cm, a drastic, significant increase in the number of positive EtGH samples were observed, compared to 3cm hair lengths, strongly supportive of EtGH incorporation from sweat after a recent alcohol consumption. Segmental studies indicated that EtG is stable in the hair matrix up to 12cm long, hence supporting the above results. Even though both the statistical and the stability studies are preliminary results which need to be confirmed by other studies, they both provide evidence for the determination of alcohol consumption using EtGH in hair lengths longer than 3cm. Amendments to the Consensus of the Society of Hair Testing, the German driving license re-granting guidelines and EWDTS hair guidelines with respect to testing for abstinence and/or alcoholism are proposed for the benefit of the donors.     

Neighborhood Cultural Heterogeneity and Adolescent Violence

A small number of scholars have attempted to reorient current thinking about the way cultural effects operate in poor neighborhoods. Scholars argue that socioeconomic disadvantage fosters heterogeneity in cultural models. Moreover, cultural heterogeneity theoretically plays an important role in shaping adolescent decision-making in poor neighborhoods, including decisions related to violent behavior. We test these assumptions using multilevel data comprised of a sample of African-American adolescents. Our findings lend support to these arguments. In particular, the results suggested that neighborhood structural disadvantage increases the degree of disagreement or heterogeneity regarding the inappropriateness of violence. Further, exposure to cultural heterogeneity increased adolescents?? involvement in violent behavior and had a moderating influence on the link between individual frames and adolescent violent behavior.