Allele frequencies of 20 Y-chromosomal short tandem repeat loci in a tribal population of Deccan Plateau, India

Population: Eighty male individuals from a nomadic tribal population belonging to Dravidian and Indo-Caucasian ethnicities from Deccan Plateau, Andhra Pradesh, India, were analyzed in the present study.     

Simultaneous determination of total human and male DNA using a duplex real-time PCR assay

A single duplex assay to determine both the amount of total human DNA and the amount of male DNA in a forensic sample has been developed. This assay is based on TaqMan technology and uses the multicopy Alu sequence to quantitate total human DNA and the multicopy DYZ5 sequence to quantitate Y chromosomal (male) DNA. The assay accepts a wide concentration range of input DNA (2 muL of 64 ng/microL to 0.5 pg/microL), and also allows detection of PCR failure. The PCR product sizes Alu (127 bp) and DYZ5 (137bp) approximate that of the smaller short tandem repeats (STRs) which should make the assay predictive of STR success with degraded DNA. The assay was optimized for probe/primer concentrations and BSA addition and validated on its reproducibility, on its human specificity, on its nonethnic variability, for artificial mixtures and adjudicated casework, for the effect of inhibitors and for state of DNA degradation. This assay should prove very usual in forensic analyses because knowing the relative amounts of male versus female DNA can allow the examiner to decide which samples may yield the most probative value in a case or direct the samples to methods that would yield the greatest information.     

Risk Factors for Male Sexual Aggression on College Campuses

Risk factors for college male sexual aggression that were both theoretically and empirically based were tested using multivariate regression analyses. These included substance abuse patterns, pornography consumption, negative gender-based attitudes, and child sexual abuse experiences. Regression analyses indicated that some gender attitudes, pornography use, and alcohol abuse were significant predictors of perpetration of sexual violence. Although a number of men were sexually abused as children, this risk factor did not predict sexual aggression as an adult. Many men reported alcohol-related sexual coercion and held many rape-supportive attitudes and beliefs. These practices by college men contribute to the prorape cultures found on many campuses. Strategies are needed to identify and intervene with high-risk men to prevent sexual victimization of women in college.     

男性生育权问题探讨

生育是一个久远而常新的话题 ,然而基于男女两性的生理差别 ,以及近现代女权运动的发展 ,人们对生育权的讨论和关注大多集中在妇女的生育权上 ,对男性生育权问题研究得很少 ,甚至予以否认。但从我国法律及国际法精神看 ,男性生育权存在具有合理性和合法性 ,其生育行为能力受生理、伦理等因素的限制。在特殊情况 (婚内、单身、被监禁 )下 ,仍应保障男性生育权的实现。     

关于女性在传统社会中地位的思考--以梅县客家妇女为例

关于中国女性在传统社会中的地位,传统的观点是:在以男性为核心男尊女卑传统社会中,妇女是不能登堂入室的。作者近来在粤东梅县进行民俗考察时,从民间收集到大量有关产权变更、书简或婚书等古文书,细读这批文书,审视女性的社会地位,可以看出,梅县妇女在传统宗族社会中具有不俗的尊长地位。其原因是多方面的,其中之一当与地方生态环境有关。     

论摩梭母系文化的变迁

受父系文化的长期浸染,摩梭母系文化系统开始向父系文化过渡,母系家庭、走访婚、摩梭男性地位等文化要素呈现出向父系文化发展的势头,但作为制约这些因素变迁的母系血缘观念依旧根深蒂固。当前摩梭母系文化变迁最恰当的理解应该是:母系文化正在艰苦地寻找能够回应父系文化冲击的新文化模式。     

Age and changing masculinities in gay–straight male workplace friendships

Abstract

Drawing on interview data gathered from 35 gay men in the UK, this article explores how age influences the negotiation of masculinity within gay–straight male workplace friendships. Study findings show that gay–straight workplace friendships between younger men appear to be framed in terms of equality, not homophobia. Older gay men also report similar experiences, some suggesting how these friendships were not possible in their youth. Gay and straight men of a similar age are also united in friendship by their experiences of ageing and its implications for carrying out work. Interview data also reveal how gay–straight male friendships are constrained at work, thus limiting the opportunities for emotional openness and physical tactility. Overall, the study reveals how younger and older gay men, and their straight male friends, variously align themselves to inclusive masculinities within friendship. This article contributes to inclusive masculinity theory by extending the types of contexts currently studied, both relational and work-related, and adding further emphasis to the contextually contingent nature of inclusive masculinities. It also advances the limited literature on gay–straight friendships by highlighting how they might challenge and reshape the heteronormative contours of work contexts.     

EA-YPredictor:基于Y-STR数据的家系特异性单倍群归属判别分析软件

目的Y染色体为男性所特有,其遗传标记蕴含着丰富的生物地理信息,故可溯源家系,在嫌疑人排查和追踪中发挥作用。Y-STR突变率较高,而Y-SNP突变率极低,几乎不会发生回复突变,所以后代男性群体携带祖先特有的Y-SNP。本研究期望通过现在我国Y库建设中通用的17个Y-STR的单倍型数据预测Y-SNP单倍群细支。方法基于前期观察,选取千人基因组计划III期中的513例东亚人群(中国及周边区域)作为基础数据集,在Java平台和Microsoft Excel软件框架下,以遗传距离计算和Y染色体进化树构建手段相联合研发Y-STR数据的家系特异性单倍群归属判别分析软件:EA-YPredictor。结果本研究揭示了15个单倍群大支下的核心单倍型。通过随机选取70个公开数据库样本,EA-YPredictor软件预测准确性达到92.8%(95%置信区间:[84.1%,97.6%])。结论在Y-SNP复合扩增检测尚无定论的情况下,本软件可基于二代测序样本对Y-STR数据库样本进行单倍群细支的准确预测,能适用于辅助家系单倍群判断。随着测序技术的不断换代和优化,更多高通量的Y-STR和Y-SNP数据补充将会使本软件进一步优化。此外,本软件对于Y数据库中Y-SNP遗传标记的筛查建库有一定指向作用。     

Sexual abuse by educators: a comparison between male and female teachers who sexually abuse students

ABSTRACT

The study aimed to identify the differences in case characteristics and typologies of female and male teachers who perpetrated sexual abuse on students. Decisions of sexual misconduct reports in England from June 2006 to December 2016 were used. Quantitative and qualitative content analysis was conducted on 20 cases of male and female teacher sexual misconduct (N?=?40). Regarding case characteristics, most were secondary school or college teachers, mid-career, with victims of the opposite sex. For differences, male teachers were older and more likely to have: perpetrated more severe and lengthier sexual abuse and previously received warnings. Interestingly, females and males were similar across the preliminary typology: minimisers and deniers; poor mental health or stressors; and young, early career. However, a fourth group of females emerged: “I was overpowered”. The study furthers the understanding of sexual misconduct by teachers and should assist in the development of policies, guidelines, and legislation around prevention.     

男性性权利的刑法保护

性权利作为公民人身权利其中的一种,应当受到法律的保护,无论是男女,都有性权利.但在我国,两性性权利的法律保护却存在一定差异.女性的性权利得到了可谓尽善尽美的关注和保护,但反观男性,刑法对男性的性权利的保护是不全面的,甚至出现了法律的真空,从而导致男性性权利无法得到刑法的有效保护.