中国5个群体D20S85基因座的遗传多态性

目的 了解中国5个群体D20S85基因座的群体遗传学数据,比较它们之间的遗传学差异,探讨其在法医学应用中的意义。方法 分别收集5个群体622名无关个体的血样,Chelex-100快速抽提法或饱和酚/氯仿法抽提DNA;扩增后经PAGE垂直板电泳、银染,进行D20S85基因座分型。结果 在5个群体622名无关个体中,共检出9个等位基因,并首次在广东汉族和广西壮族群体中检出等位基因14;每个群体基因频率大于0.05的均为6个,D20S85*6为最常见等位基因。5个群体共观察到35种基因型,群体内基因型频率分布均符合Hardy-Weinberg氏平衡,各群体间基因型构成比无显著性差异。观察140次减数分裂未发现突变。各群体的期望杂合度为0.7720～0.7912;非父排除率,在三联体为0.7538～0.7594,二联体为0.3988～0.4297;个人识别率为0.9175～0,9272;多态信息含量为0.7442～0.7656。应用于亲子鉴定和个人识别案例,效果满意。结论 D20S85基因座是法医学应用价值较高的遗传标记系统。     

利用视觉观察肱骨末端确定尸骨性别

本文介绍了利用肱骨末端的四个形态特征确认性别的一种新方法。这项技术参考了美国UNM大学和UTK大学的研究结果 ,涉及到胳膊传递角的四个统计意义的特征共同参予鉴定 (P <0 .0 5 )。性别鉴定的准确率达到 92 %。     

COMMUNITY ACCOUNTABILITY,MINORITY THREAT,AND POLICE BRUTALITY: AN EXAMINATION OF CIVIL RIGHTS CRIMINAL COMPLAINTS*

A growing body of evidence shows that minorities are disproportionately the targets of police brutality, but important theoretical questions about the causes of that inequity remain unanswered. One promising line of research involves structural‐level analyses of the incidence of police brutality complaints; however, existing studies do not incorporate variables from alternative theoretical explanations. Drawing on the community accountability hypothesis and the threat hypothesis, we tested the predictions of two prominent structural‐level explanations of police brutality in a study of civil rights criminal complaints. The study included cities of 150,000+ population (n = 114). The findings reveal that two community accountability variables—ratio percent Hispanic citizens to percent Hispanic police officers and the presence of citizen review—were related positively to police brutality complaints, partially supporting that perspective. Two threat hypothesis measures of threatening people—percent black and percent Hispanic (in the Southwest)—were related positively to complaints, as predicted. The relative degree of support for the two hypotheses is assessed.     

问题及其主义——经济法学研究非传统性之探析

经济法的功能决定了经济法学研究与其他部门法相比的非传统性,经济法学研究群体对此应该充分关注.非传统性要求经济法学研究抛弃思维定势,即不能绝对地以研究民法、刑法、行政法的思路、方法和视角来研究经济法.经济法的问题不应该从民商法等法的影子中去发现并基于这种影子进行解析,我们应该基于对经济法与传统法律的差异认识,从市场经济与经济法的实践中去探寻经济法特有的"问题与主义".     

开展科技教育活动培养队员创新品质

组织开展少先队科技教育活动,是学校落实创新教育的有效形式.面对新的历史时期,交口少科院在继承优良传统的基础上,对科技教育从更新教育观念,提高辅导员的创新素质;营造科学探索氛围,培养队员创新意识;开展全方位活动,培养创新品质这三方面入手作了实践探索.     

Gender Differences in Self-Perceptions and Academic Outcomes: A Study of African American High School Students

There is increasing divergence in the academic outcomes of African American males and females. By most accounts, males are falling behind their female peers educationally as African American females are graduating from high schools at higher rates and are going on to college and graduate school in greater numbers. Some have suggested that school completion and performance is associated with how students feel about themselves. The purpose of this study was to explore gender differences in the relationship between self-perceptions and 2 academic outcomes among a sample of 243 African American high school sophomores. The results suggest that, overall, females are more favorably oriented toward high school completion. Both male and female students with more positive self-perceptions have stronger intentions to complete the current year of high school. Higher grade point averages were more strongly associated with greater self-efficacy for females than for males. Given these findings, increased attention to educational programming, societal messages, and future research is warranted.     

孙中山生产力思想浅论

孙中山对生产力的基本内涵进行了科学的阐述 ,他认为 ,科学技术的发展对提高人类社会的生产力水平起到了决定性的作用     

案例教学法在市场营销教学中的应用

与市场营销学的综合性、实践性和应用性相联系,案例教学法成为市场营销学主要的教学方法。但是在案例教学法具体的应用中存在着一些不足之处,我们结合自己的教学感受,对案例教学法在市场营销中的应用进行探讨。     

关于科技强警的哲学思考(上)——刑事侦查辩证法研究之三

在刑警队伍中实施科技强警的目标是提高和增强其战斗力,战斗力与战斗力因素是两个既相互联系,又有区别的不同的范畴,提高刑事警察队伍的战斗力因素,增强其整体功能,就是实现强警目标的重要途径之一.决定战斗力强弱的因素包括两个方面一是战斗力因素总和;一是对刑事侦查工作的主观指导.要想提高和增强刑事警察的战斗力,就必须从这两个方面入手.