A study of sex identification of trace, dried bloodstains using a Y-chromosome-specific deoxyribonucleic acid (DNA) probe

A new method is discussed which examines trace, dried bloodstains by gel in situ hybridization using a Y-chromosome-specific deoxyribonucleic acid (DNA) probe to determine the sex of the bloodstain for forensic medicine application. The complete DNA is transferred directly by electrophoresis onto the gel intact, bypassing the possibilities of impurities contaminating the sample and of DNA degradation. The method has proven accurate for small (2.5-mm-diameter) samples aged up to eight years and is quick, simple, and easily read.     

Sex diagnosis of Chinese skulls using multiple stepwise discriminant function analysis.

Sixty Chinese skulls (30 males and 30 females) from Liaoning Province of the People's Republic of China were used in this study. Forty-one variables on each skull were measured and one group of 14 and a second group of 5 variables were selected from all the variables by applying multiple stepwise regression on a computer. Discriminant equations for the 14 and 5 variables for sex diagnosis have been obtained and these variables are highly significant. The discriminant rate for the group of 5 variables resulted in accurate sex determination in 96.7% of cases. For the group of 14 variables there was 100% success rate.     

Reducing complexity in Qualitative Comparative Analysis (QCA): Remote and proximate factors and the consolidation of democracy

Abstract.  Comparative methods based on set theoretic relationships such as 'fuzzy set Qualitative Comparative Analysis' (fs/QCA) represent a useful tool for dealing with complex causal hypotheses in terms of necessary and sufficient conditions under the constraint of a medium-sized number of cases. However, real-world research situations might make the application of fs/QCA difficult in two respects – namely, the complexity of the results and the phenomenon of limited diversity. We suggest a two-step approach as one possibility to mitigate these problems. After introducing the difference between remote and proximate factors, the application of a two-step fs/QCA approach is demonstrated analyzing the causes of the consolidation of democracy. We find that different paths lead to consolidation, but all are characterized by a fit of the institutional mix chosen to the societal context in terms of power dispersion. Hence, we demonstrate that the application of fs/QCA in a two-step manner helps to formulate and test equifinal and conjunctural hypotheses in medium-size N comparative analyses, and thus to contribute to an enhanced understanding of social phenomena.     

Comptes Rendus Book Reviews

This article follows the efforts of white settlers to impose cotton as an export crop in Natal and Zululand. Touted as a commodity capable of remaking land and life in the region in the 1850s, the 1860s, and again in the 1910s and 1920s, cotton never achieved more than marginal status in the region's agricultural economy. Its story is one of historical amnesia: although faith in the region's cotton prospects dipped following each spectacular failure, it was routinely resurrected once previous failures had been accounted for, or memories of them had faded.

Two crucial issues are at the centre of this episodic history. First, I explore the logistics of planned expansion, and the reasons for the repeated collapse of cotton-growing schemes. Second, I unravel the side effects of these difficult and disappointing efforts and argue that, despite repeated failure, cotton facilitated important structural changes to the region's agricultural, political and economic landscape.     

Bernard's physiology

My critic is too modest in claiming that he is expressing ‘some small qualifications’ these ‘qualifications’ are not so small, they raise epistemological questions of some importance. Although Benton appears contented with my piece at the epistemological level he should not be, for his reply reveals how much he disagrees with the general epistemological position underlying the article. I will discuss these ‘qualifications’ in the order in which they occur.     

What judges know about eyewitness testimony: A comparison of Norwegian and US judges

Abstract

We surveyed 157 Norwegian judges about their knowledge and beliefs about eyewitness testimony, and compared their answers to a prior survey of 160 US judges. Although the Norwegian judges were somewhat more knowledgeable than the US judges, both groups had limited knowledge of eyewitness testimony. The Norwegian judges, like the US judges, frequently differed from eyewitness experts in their responses to such important issues as whether eyewitness confidence is related to identification accuracy at trial and what is the best method for conducting identification procedures. As was true for the US judges, more knowledgeable Norwegian judges had many of the beliefs that may be necessary for reducing and mitigating the effects of eyewitness error. The results suggest that increasing judges’ knowledge of eyewitness testimony may be an important component of the solution to eyewitness error.     

电击死心房肌中心钠素改变的免疫组化研究

应用免疫组织化学LSAB法及计算机图像分析技术,观察电击死者心房肌中心钠素（ANP）变化情况,结果发现,电击死组右心房肌中ANP颗粒明显减少,此变化有助于电击死的诊断,并为临床电击伤的治疗提供参考。