蒙特卡罗数值模拟及其在大跨桥梁可靠度分析中的应用

为了定量地研究大跨桥梁在多种随机因素下的可靠度,采用了蒙特卡罗法中的拉丁超立方体抽样法,对润扬悬索桥(中国跨度最大的悬索桥)在温度、风、车辆荷载、车辆冲击等随机变量作用下的结构可靠度进行了计算.通过对大桥在正常运营和损伤状态下的可靠度分析,获得了大桥主缆应力、吊索应力、桥塔位移以及钢箱梁线形等重要指标的可靠度和累积分布函数,分析结果形象直观,提高了评估的效率,使维护决策的制定更加客观准确.     

高等学校教育评估在中国的发展--纪念我国高等学校教育评估创业10年

回顾我国高等学校教育评估的创业史,剖析教育评估的本质、目的、形式和方法,介绍我国高等工程本科教育评估试点工作,以及优秀教学成果评估和奖励活动,最后提出建设高等学校教学质量保障体系须注意的问题。     

The perpetrators of medical child abuse (Munchausen Syndrome by Proxy) – A systematic review of 796 cases

IntroductionLittle is known about the perpetrators of medical child abuse (MCA) which is often described as “Munchausen’s syndrome by proxy” or “factitious disorder imposed on another”. The demographic and clinical characteristics of these abusers have yet to be described in a sufficiently large sample. We aimed to address this issue through a systematic review of case reports and series in the professional literature.MethodA systematic search for case reports and series published since 1965 was undertaken using MEDLINE, Web of Science and EMBASE. 4100 database records were screened. A supplementary search was then conducted using GoogleScholar and reference lists of eligible studies. Our search yielded a total sample of 796 perpetrators: 309 from case reports and 487 from case series. Information extracted included demographic and clinical characteristics, in addition to methods of abuse and case outcomes.ResultsNearly all abusers were female (97.6%) and the victim’s mother (95.6%). Most were married (75.8%). Mean caretaker age at the child’s presentation was 27.6 years. Perpetrators were frequently reported to be in healthcare-related professions (45.6%), to have had obstetric complications (23.5%), or to have histories of childhood maltreatment (30%). The most common psychiatric diagnoses recorded were factitious disorder imposed on self (30.9%), personality disorder (18.6%), and depression (14.2%).ConclusionsFrom the largest analysis of MCA perpetrators to date, we provide several clinical recommendations. In particular, we urge clinicians to consider mothers with a personal history of childhood maltreatment, obstetric complications, and/or factitious disorder at heightened risk for MCA. Longitudinal studies are required to establish the true prognostic value of these factors as our method may have been vulnerable to publication bias.     

维吾尔语"t∫iq-"等趋向动词的模糊方位定势及相关探讨

以对比应用语言学理论为基点,从三个不同的层面解读维吾尔语趋向动词的模糊空间方位,以及与汉语趋向动词之异同,并探讨了新疆少数民族学生在汉语学习使用时应注意的问题.     

“治人事天莫若啬”的现代解读

“治人事天莫若啬”是老子《道德经》的重要命题.老子认为,只有以“啬”这一理念去修身治人和敬畏自然,才能符合“长生久视之道”,从而达到天人和谐的人生境界.根据“治人事天莫若啬”的生态环保思想,在现代社会中,应大力提倡与宣传“崇尚简单生活”的理念.“崇尚简单生活”是人的一种美德,是一种新的环保理念,也是人类追求的一种绿色生活,更是人的一种幸福快乐的最高人生境界.在现代社会中,老子的“治人事天莫若啬”的思想具有重要的现实意义.     

论定金的性质

作为一项重要的债的担保方式,定金制度在我国立法中较为滞后和粗糙,学术界对定金的性质有较大理论分歧。从立法本意和司法实践分析,定金的性质应是违约定金。我国立法应以制定《民法典》为契机,明确定金的性质和适用法律要件,确定其在法律架构中的地位,使理论与实务相统一,以期达到较好的立法效果。     

中国广播电视大学教学质量保证和研究

中国广播电视大学的教学质量、管理质量已形成了自身鲜明的特色。在远程教育快速发展的新形势下，要进一步确定质量保证要素，统一质量标准，以确保超大规模条件下远程教育的可持续发展。     

木棒和子弹组成系统的动量守恒问题

详细分析了子弹射击木棒问题与子弹射击砂箱问题的区别，利用质心运动定理和角动量守恒定律说明了在什么情况下系统的动量才守恒。又引入打击中心的概念，指出了理论的实际应用。     

几个不等式的推广及其成立等式的条件

推广了Cauchy不等式,Holder不等式和Minkowski不等式,给出了推广不等式成立等式的充要条件,并应用平均值不等式证明了所得结果.     

会计职业判断的制度环境与道德风险

会计人员的职业判断在整个会计规范体系的执行过程中居于最直接、最主动的核心地位，但会计职业判断也会引发道德风险。对于会计职业判断道德风险的发生原因，过去的讨论一般都局限于会计人员自身道德素质的分析。本则从制度环境与道德风险的一般关系原理出发，结合我国企业会计的具体制度环境，论述了会计制度环境导致会计职业判断道德风险的现实性，并且在揭示问题成因的基础上，给出道德风险控制的具体对策。