成都汉族、甘肃东乡族群体D10S1432和D10S1213 位点的遗传多态性分析

目的本研究的目的是了解人类基因组中D10S1432及D10S1213两个STR位点在成都汉族和甘肃东乡族群体中的遗传多态性分布及两个群体之间的关系。方法采用PCR、聚丙烯酰胺凝胶电泳及银染技术,共调查了209例样本。结果在D10S1432位点上观察到5个等位基因,15种基因型。在D10S1213位点上观察到9个等位基因,31种基因型。两位点的基因型频率在调查的两个群体中的分布符合Hardy-Weinberg平衡定律（P>0.05）。经统计,D10S1432在这两个群体中的杂合度为0.664和0.737,个人识别几率为0.827和0.820。D10S1213的杂合度为0.664和0.657,个人识别几率为0.836和0.882。结论结果表明,D10S1432和D10S1213两个位点在法医学个人识别和亲子鉴定中有较高应用价值。     

Rupture of the spleen or splenic vessels (splenic emergency syndrome) in late pregnancy: a report of two autopsy cases

During the years 2004-2006, seven divers, who had deadly accidents, underwent post-mortem examination at the Institute of Legal Medicine of the University of Munich. The cause of death in all divers was drowning with typical pathomorphological findings. This should be regarded as separated to the triggering reason for drowning. The trigger for accident was established in four of seven cases by technical analysis and police investigation. High risk-taking, lack of technical service, and deficiency of dive equipment care were main reasons for death. We present two of these cases which showed several problems occurring concurrently. Autopsy always is necessary to look for indices for application of force or to exclude competitive reasons for death.     

THE IMPACTS OF DIFFERENT TYPES OF COLLEGE INSTRUCTORS ON STUDENTS’ ACADEMIC AND LABOR MARKET OUTCOMES

Based on a novel data set that links college administrative information with earnings records from a state college system for both public two‐year and four‐year colleges, this study quantifies the impacts of exposure to different types of instructors during students’ initial semester in college on their subsequent academic and labor market outcomes. To minimize bias from student sorting by type of instructor, we combine course‐set fixed effects with an instrumental variables approach that exploits term‐by‐term fluctuations in faculty composition in each department, therefore controlling for both between‐ and within‐course sorting. The findings suggest that two‐year students, particularly racial minority students, have substantially higher levels of exposure to adjuncts with temporary appointments than four‐year students. Two‐year students taking a heavy course schedule with temporary adjuncts are adversely affected in college persistence and subsequent credit accumulation, and the penalty is particularly pronounced among males and racial minority students with stronger academic potential. Such negative impacts on academic outcomes do not translate into poorer short‐ to medium‐term labor market performance. In the four‐year setting, no significant distinction is identified between different types of instructors on either student academic or labor market outcomes.     

Stepping Out of The Shadows

China’s ancient puppetry art is looking for light at the end of the tunnel The sounds of gongs and drums fade into the background as figurines made from animal skins suddenly come to life behind a screen,spinning and jumping,telling children’s stories or grown-up tales of love and hate;call it a movie projection avant la lettre.The audience is enthralled and everything around them is immersed in this ancient art of shadow.     

高校学生家乡观念的表现特点及管理措施研究

文章总结了当代大学生这个特殊群体的家乡观念的表达特点和形式。提出高校应通过全面了解和加强管理等措施来引导大学生树立健康理性的家乡观念;在工作中要善于利用家乡观念的积极作用,限制和克服其消极作用,使学生教育管理工作更具有针对性和实效性。     

我国大学生自杀原因综述

本文综述了近几年我国大学生自杀现象的原因,并将其归类为大学生的生理因素、心理因素、生活态度、外在因素、家庭因素和社会因素六个主要的维度进行阐述.     

日粮锌硒水平对肉鸡小肠黏膜结构的影响

为了探讨微量元素锌和硒互作对肉鸡小肠黏膜结构的影响 ,将 2 4只 1日龄AA肉鸡随机分为 3组 ,分别饲喂添加有高锌高硒 (锌 1 0 0 0mg/kg ,硒 5mg/kg)、低锌低硒 (锌 34mg/kg ,硒 0 .0 8mg/kg)和常锌常硒 (锌 5 0mg/kg ,硒 0 .1 5mg/kg)的日粮 4 5d后 ,观察小肠黏膜的形态结构变化。结果表明 ,高锌高硒或低锌低硒组肉鸡的小肠黏膜结构有明显的损伤 ,表现为黏膜厚度和绒毛高度下降 ,绒毛高度 /腺窝深度的比值减少 ,肠黏膜上皮细胞萎缩。尤其是高锌高硒对空肠的损伤最为严重。而常锌常硒组肉鸡小肠黏膜的形态结构正常。研究结果表明 ,日粮中按锌 5 0mg/kg和硒 0 .1 5mg/kg的比例添加 ,对于维持小肠黏膜的正常形态结构是合适的 ;过高或过低的锌和硒对小肠黏膜有毒性作用 ,且高锌和高硒可相互促进其毒性作用     

“文革”三大干将的人生结局

王力、关锋和戚本禹三人曾是“文化大革命”中响当当的知名人物。然而,当真理最终战胜了虚妄,理智最终战胜了狂热,伴随那场“红色风暴”过后,他们的人生结局如何,却鲜为人知。中央文革第一号“大笔杆子”——王力王力在进中央文革之前,就写了一系列重要文章,包括参与写“九评”     

“文革”中的停课、复课与招生

“文革”中,依照毛泽东搞“文化大革命”的思路,中国的大中专学校经历了从停课到复课的历史过程。这一过程反映了毛泽东怀着良好愿望,决心搞好“教育革命”的许多想法,也表明失控的“文化大革命”使毛泽东的想法不能实现,甚至走向反面。毛泽东早就对过去旧的教育制度不满意,他有一个“教育革命”的思路毛泽东在他青年时代接受旧教育时,就对旧的教育制度十分不满。他曾用干脆不进学校读书而是自己每天到长沙定王台去自学的办法进行反叛。后来,在父亲停止供他学费的威胁下,他才又进入学校去读书。但毛泽东对旧教育制度的不满始终存在。新中国…