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。     

美国对华政策的基本取向是导致台海危机的根本动因

长期以来,台湾问题一直是影响中美关系正常发展的关键问题之一。然而,美国对华政策的基本取向始终是将台湾视为不享有主权国家之名的独立的“政治实体”。美国为了其亚太战略乃至全球战略利益考虑,不遗余力地为台湾“拓展国际空间”和制造“双重承认”创造有利的外部环境。正是由于美国的支持和纵容,台湾当局在处理两岸关系上,已经逐渐背离了“一个中国”的基本原则,其“台独”的反动嘴脸昭然若揭。     

共青团服务青年就业和再就业工作思考

十六大报告指出 :“就业是民生之本。”贯彻十六大精神 ,搞好青年就业和再就业工作 ,共青团组织责无旁贷。共青团应引导青年树立正确的就业观念 ,提升青年的“可就业指数” ,对青年进行创业辅导 ,开展青年就业中介服务 ,帮助青年进行职业生涯设计 ,开创青年就业和再就业工作新局面。     

论战略机遇期青年的历史使命

2 1世纪头 2 0年 ,对我国来说是一个重要的战略机遇期 ,对于成长中的青年一代来说 ,则是一个难得的历史机遇期 ,全面建设小康社会的历史使命 ,落在了当代青年的肩上。新的时代 ,新的使命 ,必将对当代青年提出新的要求。     

美国科罗拉多州的电子逮捕证

美国科罗拉多州将法院与执法机构的电脑系统联网,并使用媒件在各系统之间进行数据传送,使法院可以通过电脑网络将逮捕证直接签发给执法机构,克服了书面逮捕证存在的诸多缺陷,实现了逮捕证的电子化、自动化和同步化,提高了签发逮捕证的及时性和准确性。     

论十六大对文化理论的创新发展

十六大继承和发展了马克思主义文化理论 ,对文化理论进行了全面创新。可概括为15个要点 :提出了深刻认识文化建设的战略意义、用“三个代表”重要思想统领文化建设、全面建设小康社会的文化要求、先进文化与党的先进性相结合、对待“四种文化”的政策、弘扬和培育民族精神、坚持自然科学与社会科学并重、大力发展文化产业等新观点。     

浅析美欧政治文化与伊拉克战争

政治文化是某个国家或民族文化与历史传统长期积淀而成的政治观念方面的综合体系,表现出一个政治系统的基本政治倾向。美欧的政治文化既表现在双方对国内政治和国际政治的认知上,也贯穿于各自的历史进程中。美欧在伊拉克战争问题上表现出来的针锋相对的态势,显示出双方迥然不同的政治文化传统。美国的霸权倾向与欧洲的制衡传统产生剧烈的摩擦和碰撞。伊拉克战争既为双方政治文化冲突提供了导火索,也为两者弘扬各自外交理念提供了平台。     

2004年美国大选对美国选举制度的影响

2004 年美国大选中技术构件的改进,提高了美国选举制度的可操作性和合理性;竞选开销创历史新高,加深了金钱政治对选举制度民主公平原则的侵蚀;候选人通过谎言和反面信息争取选票,违背了选举制度的诚信道德准则。     

Portable high‐resolution automated 3D imaging for footwear and tire impression capture

The forensic science community raised the need for improved evidence recognition, collection, and visualization analytical instrumentation for field and laboratory use. While the 3D optical techniques for imaging static objects have been extensively studied, there is still a major gap between current knowledge and collecting high‐quality footwear and tire impression evidence. Among optical means for 3D imaging, digital fringe projection (DFP) techniques reconstruct 3D shape from phase information, achieving camera‐pixel spatial resolution. This paper presents a high‐resolution 3D imaging technology using DFP techniques dedicated to footwear and tire impression capture. We developed fully automated software algorithms and a graphical user interface (GUI) that allow anyone without training to operate for high‐quality 3D data capture. We performed accuracy evaluations and comparisons comparing with the commercial high‐end 3D scanner and carried out qualitative tests for various impressions comparing with the current practices. Overall, our technology achieves similar levels of accuracy and resolution with a high‐end commercially available 3D scanner, while having the merits of being (1) more affordable; (2) much easier to operate; and (3) more robust. Compared with the current practice of casting, our technology demonstrates its superiority because it (1) is non‐destructive; (2) collects more evidence detail than casts, especially when an impression is fragile; (3) requires less time and money to collect each piece of evidence; and (4) results in a digital file that can easily be shared with other examiners.     

Conflict reduction by mutual disengagement

This study attempts to discover what variables, if any, will induce opponents to cooperate. The author isolated 12 independent variables and grouped the first five together in his refined model as variable 6. The remaining variables are: worthlessness, supervision, conspicuousness, previous neutralization, absence of internal segmentation, military potential, and tradition as a neutral. Analysis was limited to bivariate relationships between the independent and dependent variables (i.e., possible outcomes). Cases tested included examples from the outbreak of World War I to the present. The author discovered that disengagement would most likely succeed in a geographically and ideologically distinct Country, one previously neutralized, that had little military value, a politically organized population, and some military capacity. The most unpromising candidate would lack clearcut ethnic borders, internal homogeneity, and political unity. Disengagement, while no panacea, offers the advantage of many opening moves in a conflict reduction situation.