浙江汉族人群16个Y-STR基因座遗传多态性调查

目的进一步完善浙江省汉族人群Y-STR基因座遗传多态性研究,为其法医学应用提供基础数据。方法应用Y-filer荧光标记复合扩增系统,对浙江汉族203名无关男性个体进行16个STR基因座的复合扩增,统计各基因座的群体遗传学参数。结果其中15个Y-STR基因座分别检出4~13个等位基因,DYS385基因座检出47种单倍型,GD值为0.3918~0.9609;观察到16个Y-STR基因座共同构成的单倍型199种,其中196种单倍型出现1次,2种出现2次,1种出现3次,累计GD值为0.9998。结论16个Y-STR基因座具有较强的个体识别能力,适合浙江法庭科学应用。     

波尔山羊卵母细胞和早期胚胎的端粒酶活性

利用端粒重复序列扩增(TRAP)法进行了山羊卵母细胞和附植前胚胎的端粒酶活性的测定;结果表明,山羊卵母细胞和早期胚胎的端粒酶活性都为阳性。TPG定量比较发现,卵母细胞的TPG最低,为25.348U;4-细胞的TPG为273.832U,至8-细胞时,TPG又降低到56.117U,随后快速升高,桑椹胚的TPG为251.111U;囊胚的端粒酶活性最高,TPG为519.46U。     

Y-STR基因座应用于刑事案件的独特作用

目的探讨Y-STR基因座在刑事案件中的应用价值。方法采用Y-STR荧光标记复合扩增技术,结合案例应用。结果Y-STR基因座对于涉及男女混合、多名男性混合样本、性别鉴定、父权鉴定等案例中具有特有应用价值。结论Y-STR基因座可应用于法庭科学中的个体识别与同一认定,但在应用中要注意各种特例的发生。     

禁止内部人短线交易立法若干问题研究

内部人短线交易是一种特殊的证券内幕交易行为 ,具有较大的社会危害性。文章对规制内部人短线交易的必要性进行了剖析 ,分析了短线交易行为的构成要件 ,最后探讨了短线交易归入权行使的主体、期间以及所得收益的计算问题。     

Repeat victimization among adolescents and young adults

Prior research has shown that victimization incidents are disproportionately concentrated among relatively few victims and that prior victimization is a consistent predictor of future risk. This paper expands existing knowledge on victimization by describing temporal patterns of risk and by developing and testing alternative explanatory models of the link between past and future risk. Analyses based on panel data from the National Youth Survey support both state dependence and heterogeneity interpretations of the correlation in risk over time. In other words, prior victimization predicts future risk in part because it alters something about the individual, and because it indicates an unmeasured propensity for victimization that persists over time. The theoretical implications of these findings, including the feasibility of a victim labeling perspective, are discussed.An earlier version of this paper was presented at the annual meeting of the American Society of Criminology, Phoenix, 1993.An exception to this lack of attention is the vast literature in the area of domestic abuse.     

用VBA语言开发群体遗传学统计分析软件

目的开发适用于短串联重复序列(STR)基因座群体遗传学统计分析的软件,促进和加快STR基因座群体遗传学基础研究。方法选用简单易用的MicrosoftVBAforExcel语言,利用宏功能,开发STR基因座群体遗传学统计分析软件。结果开发建立了基于VBA语言的“群体遗传学分析易”软件,能进行STR基因座群体遗传学分析。结论开发的基于VBA语言的“群体遗传学分析易”软件,具有计算统计功能完善、输入格式兼容性好、使用方便、输出格式清晰易懂的特点,可在国内外STR基因座群体遗传学研究领域推广应用。     

Incestuous paternity detected by STR-typing of chorionic villi isolated from archival formalin-fixed paraffin-embedded abortion material using laser microdissection

Microscopic examination of a blood clot expelled by a physically and mentally disabled woman taken to the emergency room because of genital bleeding revealed the presence of chorionic villi encircled by decidua, hemorrhage, and necrosis. In order to identify the father of the product of conception, sections of formalin-fixed, paraffin-embedded abortion material were subjected to laser microdissection: DNA extraction from chorionic villi selectively isolated from the surrounding tissues allowed successful STR-typing of fetal cells, which was otherwise prevented by excess maternal DNA. The large number of homozygous genotypes in the fetal profile suggested incestuous paternity. Analysis of reference DNA samples from male relatives excluded the woman's father, paternal grandfather, and maternal grandfather, whereas the obligate paternal alleles of the fetus were constantly present in the genotypes of the woman's brother, clearly demonstrating brother-sister incest (probability of paternity > 99.99999%).     

Genetic polymorphism at 15 tetrameric short tandem repeat loci in four aboriginal tribal populations of Bengal

POPULATIONS: This study reports the genetic polymorphism observed at 15 short tandem repeat loci D3S1358, TH01, D21S11, D18S51, D5S818, D13S317, D7S820, D16S539, CSF1PO, vWA, D8S1179, TPOX, D2S1338, D19S433, and FGA in four aboriginal populations of Bengal. The analysis was performed to decipher the suitability of CODIS as well as six other highly polymorphic and unlinked markers in Forensic Testing. Studied populations include four tribes: Karmali, Kora, Maheli, and Lodha.     

Analysis of Y-STR loci in a population sample from northeast China

POPULATION: A total of 141 unrelated Chinese Han male individuals living in Liaoning in northeast China.