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排序方式: 共有509条查询结果,搜索用时 812 毫秒
251.
252.
甘乐 《北京青年政治学院学报》2012,21(1):14-21
青少年发展指标体系具有针对性、直观性、动态性、综合性特点和描述、解释、监测、评价、导向和预测的功能。应在遵循基本指标建构原则、筛选原则的前提下,建构出从生理、心理、社会、文化本质规定性层面上综合反映青少年发展状况的指标体系。青少年发展指标体系不仅包括反映青少年主体发展的指标,而且包括反映青少年组织发展、青少年发展环境等指标。指标体系的建构对于丰富青少年发展理论有重要意义,对于青少年群体的良性发展、青少年事务工作的优化、青少年研究工作的深化具有实践意义。 相似文献
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D. B. Johnson M.S. Victor E. Perlin Ph.D. Mitchell M. Rohde Ph.D. Alice C. Thomas M.S. Cuong Q. Luu B.S. Jennifer Chang B.S. 《Journal of forensic sciences》2013,58(3):631-644
It is often challenging to ascribe an objective measure of confidence for identifications based on surveillance imagery from a crime scene. The present work seeks to address this deficiency in the case of garment comparison evidence by developing a quantitative method for establishing a conservative lower bound on the likelihood ratio (LR) for identifications involving patterned garments. The method is based on statistical analysis of pattern offset measurements taken from a sample of garments of the same type (manufacturer, style, and size) as the seized evidence. The developed analysis framework was demonstrated on different types of garments over a range of modeled surveillance imaging scenarios with variable image quality; the lower bounds on the LRs ranged from approximately 10–1 to over 400–1. The statistical model was tested and validated through a large‐scale empirical study involving both simulated and human observer‐performed garment comparisons. 相似文献
254.
目的制备D11S4463基因座等位基因分型标准物,并调查该基因座在中国汉族人群中的遗传多态性。方法设计引物,用荧光引物PCR扩增和ABI 3130XL遗传分析仪电泳的方法,对中国汉族520份无关个体血斑样本D11S4463基因座遗传多态性进行调查,用分子克隆的方法构建其等位基因分型标准物。结果 D11S4463基因座在中国汉族人群中共检测出9个等位基因,杂合度、匹配概率、个体识别能力、多态性信息含量及非父排除概率分别为0.735、0.089、0.911、0.73、0.485。应用分子克隆的方法成功构建其等位基因分型标准物,按国际法庭血液遗传学学会推荐的原则命名。结论 D11S4463基因座具有较高的遗传多态性,应用分子克隆的方法构建其等位基因分型标准物,在法医科学实践中具有较高的应用价值。 相似文献
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Tuyen Le 《Journal of International Wildlife Law & Policy》2013,16(2):115-144
AbstractAs concern over various environmental issues has risen at the international level, questions regarding what constitutes “nature” and how it should be portrayed and treated have gained a greater sense of urgency. This paper explores varying concepts and attributes of nature articulated by the Convention on International Trade in Endangered Species (“CITES”). Much of the research on CITES comes from the fields of policy and ecology, exploring matters of biodiversity, sustainability, enforcement, functionality, and evaluation of CITES as a “success” or “failure” of policy, with little focus on issues of cultural context and ambiguities. In contrast, within the social sciences, the contemporary literature is broadly dedicated to critiquing the static, dualistic ideas of nature upon which environmental regulations are based. However, what is often missing from this discourse is how environmental policies often have an implicit understanding that these static conceptions of nature are not accurate – that within the environmental legislation process, there is “an awareness, for example, of the messy, improvised character of knowledges about nature”. This paper explores CITES’s understanding of nature, how it characterizes nature, and how these conceptions become implemented in legislative practice. It illustrates CITES as a manifestation of what Krueger calls a regulatory process of “coded and recoded text with material implications” (p. 880), wherein a relatively unchanging set of legislation can create “multiple, even contradictory, outcomes coexisting simultaneously in the same system” (p. 872). 相似文献
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T.M. Simms C. Garcia S. Mirabal Q. McCartney R.J. Herrera 《Forensic Science International: Genetics Supplement Series》2008,2(4):310-317
The Bahamian archipelago has been influenced by a wide array of settlers (Lucayans, Eleutherian Adventurers, British Loyalists, Creoles from the United States and African slaves) throughout its short but dynamic history. Nevertheless, the Bahamas remains poorly characterized genetically and little is known about each group's contribution to the island chain. In the current study, the population of New Providence was analyzed based on 15 autosomal STR loci routinely employed in forensic DNA fingerprinting applications. A comparison of this collection with African groups reveals similar genetic profiles to West African populations from Equatorial Guinea and Angola, possibly resulting from the importation of slaves from West African ports during the Transatlantic Slave Trade. Although the New Providence collection exhibits strong genetic affinities to the two US African American reference populations, the detection of unique alleles among them may necessitate the utilization of population-specific databases in forensic cases especially when the STR profiles include these specific variants. 相似文献
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程乐 《浙江省政法管理干部学院学报》2006,(1):77-80
判后语已然成为裁判文书改革中有争议的话题,文章通过体裁分析的方法探讨了判后语的特点,并指出判后语作为裁判文书附属性的可选语步的性质,从而确定了其存在的合理性。当然,任何一种文体都须加以规范,这就有赖于有关部门文书制作相应规范的出台。 相似文献