D18S872基因座在汉、维、蒙古、回族群体中的遗传多态性研究及其应用

目的　调查D18S872基因座在成都汉族 ,新疆维族和蒙古族 ,甘肃回族 4个民族中的遗传多态性 ,获得群体遗传学基本数据。　方法　等位基因分型标准物制备采用分子克隆技术 ,样本基因分型采用PCR和PAG垂直电泳技术、银染显色方法。　结果　获得D18S872基因座等位基因分型标准物及该基因座在 4个群体中的遗传学数据。　结论　结果表明D18S872基因座在法医学个人识别和亲子鉴定中有一定的应用价值。     

The use of genomic "dactyloscopy" for the diagnosis of monozygotic twins

Possibilities of gene identification expertise for the solution of problem on mono- or dizygotic origin of twins were demonstrated. It was shown that DNA printing method makes it possible to differentiate mono- and dizygotic twins in complicated cases.     

The investigation of alleged insecticide toxicity: a case involving chlordane exposure, multiple sclerosis, and peripheral neuropathy

A man with no previous medical problems had two documented exposures to an insecticide containing the organophosphorous compounds chlordane and heptachlor. Six months to one year later, he began to experience neurological symptoms which progressed until his death. At autopsy, his brain showed classic findings of multiple sclerosis, and he had a severe peripheral neuropathy. Review of the literature indicates that the findings are not compatible with chlordane toxicity. Some of the factors to be used in determining the casual relationship between toxic exposure and disease processes are discussed.     

Determination of ABO blood group markers in single hair segments

Determination of ABO-blood group on human hair segments of 79 individuals was performed by means of modified Yada absorption-elutions technique. The studies were carried out with 4 micron thin cross sections of hair. In 79% of the cases it was possible to establish the correct blood group. Individual hair segments of 0.5 cm length yielded reliable results. Antigen identification was best with blood group B and most difficult of the AB type.     

Oil Wealth and Regime Survival in the Developing World, 1960–1999

This article examines contrasting claims made by scholars of oil and politics that oil wealth either tends (1) to undermine regime durability or (2) to enhance it. Using cross-sectional time-series data from 107 developing states between 1960 and 1999, I test the effects of oil wealth on regime failure, political protests, and civil war. I find that oil wealth is robustly associated with increased regime durability, even when controlling for repression, and with lower likelihoods of civil war and antistate protest. I also find that neither the boom nor bust periods exerted any significant effect on regime durability in the states most dependent on exports, even while those states saw more protests during the bust. In short, oil wealth has generally increased the durability of regimes, and repression does not account for this effect. Future research focused on the origins of robust coalitions in oil-rich states is most likely to provide fruitful explanations to this puzzle .