利用现代物证分析技术推断毒品的来源

利用现代物证分析技术推断毒品的来源,是侦查毒品案件的客观要求,对打击毒品犯罪具有重大意义。随着气相色谱同 位素比值质谱、电感耦合等离子体质谱等现代分析技术的出现,使得我们利用现代物证分析技术推断毒品来源成为可能。     

对政法高职院校体育课教学突出职业技能的探索

政法高职院校,体育课教学为了突出政法高职教育的职业技能特色, 将体育课称为“警体课”是政法高职教育的客观要求,也是学院体育特色教学实践经验的总结。     

Exposure to Family Violence in Young At-Risk Children: A Longitudinal Look at the Effects of Victimization and Witnessed Physical and Psychological Aggression

This study examines the contribution of specific types of family violence exposure (e.g., victim vs. witness; physical vs. psychological) to aggressive and anxious/depressed problem behaviors in young (i.e., 6-year-old) at-risk children. This multisite prospective study of 682 children from four different regions of the country asked mothers and their 6-year-old children to report on violence exposure in their families. After controlling for mother reports of child problem behaviors on the Child Behavior Checklist at Age 4, it was found that subsequent exposure to family violence predicted reported problem behaviors at Age 6. Although mothers' report of child victimization predicted subsequent problem behaviors, witnessed violence was related to these problems only when both mothers and children reported its occurrence. The results of this study suggest that even though there was a relationship between witnessed and directly experienced family violence, both had independent, noninteractive effects on subsequent behavior problems.     

警体训练科学化及伤病的预防

警体训练运动如果违反训练运动规则和过度训练,就易出现运动损伤、运动性相关疾病。了解和掌握警体训练运动原则、保健知识和超过机体承受能力易出现的征象及相关伤病,就能在警体训练中有针对性地进行预防,从而掌握科学的训练方法达到最大限度地避免和减少损伤。     

Perception of and Satisfaction with Relationship Power,Sex, and Attachment Styles: A Couples Level Analysis

Eighty heterosexual dating couples provided information about their gender, individual histories of abuse in their current relationship, attachment styles, perception of and satisfaction with relationship power. Partner report of physical abuse was the dependent variable. APIM actor results suggest that an individual's gender interacts with perceived level of relationship power and satisfaction with relationship power for physical abuse. Both dimensions of attachment interacted with perceived relationship power for physical abuse. Partner effects were also found. One's partner's sex interacted with perceived power and satisfaction with relationship power. Finally, the partner's avoidant attachment interacted with satisfaction with relationship power. These findings generally replicate and extend the work of H. M. Ronfeldt, R. Kimerling, and I. Arias (1998, J. Marriage Fam. 60: 70–78) by showing how attachment styles, perception of relationship power, and satisfaction with relationship power are related in predicting aggression against a romantic partner.     

Reassessing the alcohol-violence linkage: Results from a multiethnic city

This article examines the relationship between alcohol availability and nonlethal violence at the census-tract level in Miami, a multiethnic city with high levels of disadvantage and immigration. The effects of alcohol (total outlet rate) are considered from the perspectives of social disorganization and routine activities theories. Nonlethal violence is the average annual rates of robbery, aggravated assault, and total violence (combined aggravated assault and robbery). The analyses include corrections for spatial autocorrelation. The results show that alcohol availability has strong positive effects on rates of nonlethal violence and that the percentage of recent immigrants is also a significant positive predictor.     

Experimental results on data analysis algorithms for extracting and interpreting edge feature data for duct tape and textile physical fit examinations

A physical fit is an important observation that can result from the forensic analysis of trace evidence as it conveys a high degree of association between two items. However, physical fit examinations can be time-consuming, and potential bias from analysts may affect judgment. To overcome these shortcomings, a data analysis algorithm using mutual information and a decision tree has been developed to support practitioners in interpreting the evidence. We created these tools using data obtained from physical fit examinations of duct tape and textiles analyzed in previous studies, along with the reasoning behind the analysts' decisions. The relative feature importance is described by material type, enhancing the knowledge base in this field. Compared with the human analysis, the algorithms provided accuracies above 90%, with an improved rate of true positives for most duct tape subsets. Conversely, false positives were observed in high-quality scissor cut (HQ-HT-S) duct tape and textiles. As such, it is advised to use these algorithms in tandem with human analysis. Furthermore, the study evaluated the accuracy of physical fits when only partial sample lengths are available. The results of this investigation indicated that acceptable accuracies for correctly identifying true fits and non-fits occurred when at least 35% of a sample length was present. However, lower accuracies were observed for samples prone to stretching or distortion. Therefore, the models described here can provide a valuable supplementary tool but should not be the sole means of evaluating samples.     

情境预防视阈下首都社区安全治理——基于北京市23个社区的调查分析

情境预防理论表明首都社区安全治理绝不能仅依赖警察为主体的国家强制力,而应通过社区情境的优化来达到"无为而治"的社区治理效果。基于对北京市23个社区的调查分析,发现社区物理环境显著影响着社区安全度,楼房社区-自住平房-公寓-出租平房形成自高至低的社区安全梯度,因此情境预防应融入社区物理环境的规划-设计-建设-维护流程。另外,社区社会情境同样显著影响着社区安全度,社会治安综合治理机制与社区警务机制作为安全网络的双重支柱,应由压力型体制下单向执行转向双向互动网络,而基于互联网与物联网的社区大数据平台应构成社区神经系统与实时自动监测系统。     

Managing children's and adolescents' medical complaints amid parent conflict: Strategies and tools for professionals

Children and adolescents who are having difficulty coping with stress often present with complaints of physical discomfort. Effective treatment approaches exist for many of these issues. Among high-conflict parents, however, children's medical issues can become another canvas for conflict, with parents focused more on blaming one another for the child's distress than on options for assisting the child. Professionals can be drawn into the conflict to such a degree that they overlook essential steps for addressing and managing these issues. The authors present a research-informed model for managing medical and psychophysiological issues amid parental conflict.