“五四”前后科学观念的呈现与想象

"五四"前后,科学观念传播从一开始起,就僭越了自身的本质规定性,由技术层的物质保障提升为一种结束皇权、批判专制、重建价值的政治、文化行为,并在传统与现实的不断整合以及政治斗争的激荡下,被塑造为强有力的意识形态系统.     

五四时期女性经济角色的变迁

五四时期,在新的历史文化情境下,中国女性的经济角色出现了现代转型,这主要从新的角色期待与新的角色扮演两个层面展开。在角色期待方面,先进时人围绕“经济独立”与“女性就业”展开深入的阐释。在角色扮演方面,五四时期女性就业出现了新面貌,贯穿其中的争取职业平等的斗争尤其值得称道。     

D8S384基因座的遗传多态性及其在法医物证检验中的应用

揭示人类自然群体中D8S384基因座的基因型频率,评估D8S384基因座在法医物证中的应用价值,以及建立D8S384基因座的分型方法。用不同基因型PCR产物混合的方法,制备了D8S384等位基因分型标准物,并按照国际法医血液遗传学会DNA委员会推荐的原则命名了等位基因。采用PCR扩增、电泳分析、银染显色的方法,调查了世界3大人种11个群体1103名个体的D8S384基因型。D8S384基因座共有8个等位基因,群体内基因型分布符合Hardy－Weinberg平衡,群体间基因型构成有显著性差异。利用群体数据估计了D8S384基因座的法医学理论应用价值,计算得出D8S384基因座的期望杂合度为0．704±0．014,个人识别机率为0．864。D8S384基因座是一个较好的法医学STR遗传标记。     

中国人D7S21基因应5′端侧翼DNA多态性

分析D7S21基因座5’端侧翼DNA3个基因座多态性（－4A／G、－109C／T和一22lG／C）和单倍体分型。用PCR和扩增产物限制性内切酶酶解的方法检测了100名中国人无关个体的多态性,获得了6个不同等位基因的频率,即-4A＝0．29,－4G＝0．71,－109C＝0．54,－109T＝0．46,－221G＝0．74,－221C＝0．26。结果表明,D7SZI基因座5’端侧翼DNA3个基因座的DP值达0．944,在法医学个体识别中具有很高的个体识别能力。     

人类D19S40基因座在不同人种中的遗传多态性研究

采用ＰＣＲ技术分析中国汉族、德国人、斯洛伐克人和美国黑人群体Ｄ１９Ｓ４００基因座的遗传多态性及世界三大人种之间的差异。四个群体共调查了６２０人,发现了１１个等位基因,观察到４７种基因型。各群体观察杂合度为：０．７８～０．８８,个人识别机率为：０．９３８５０～０．９６６４。四个群体基因型频率分布符合Ｈａｒｄｙ－Ｗｅｉｎｂｅｒｇ平衡（Ｐ＞０．０５）,三大人种（蒙古人种、高加索人种、美国黑人）之间Ｄ１９Ｓ４００基因座等位基因频率分布存在极显著差异（Ｐ＜０．０１）。结果显示Ｄ１９Ｓ４００基因座在群体遗传学研究和法医学个人识别中有较高应用价值     

武汉汉族人群短串联重复序列D5S818,D7S820位点多态性研究

目的 研究Ｄ５Ｓ８１８,Ｄ７Ｓ８２０的多态性及法医学应用价值。方法 应用聚合酶链反应,聚丙烯酰胺凝胶电泳分离及银染是带技术对地区汉族２３２例无关人体作Ｄ５Ｓ８１８,Ｄ７Ｓ８２０位点分型调查。结果 Ｄ５Ｓ８１８和Ｄ７Ｓ８２０位点分别检了８个和６个等位基因,获汉族人群基因频率分布。二位点基因型频率分布符合Ｈａｒｄｙ Ｗｅｉｎｂｅｒｇ平衡。     

近年来五四运动研究综述

为庆祝五四运动90周年,从2008年开始学术界掀起了五四运动的研究热潮,取得了丰硕的研究成果。这些成果概括起来集中于以下四个方面：五四内涵与精神的诠释;五四人物、群体、社团、刊物及思想的深挖掘;五四意义与作用的解读;五四争论与反思的再探讨。从以上四个方面出发对1年多来的五四研究成果进行考察,作一综述。     

An Exploratory Study on International R&D Strategies of Chinese Companies in Europe

We here present a study that arms the reader with various discussion points on the research and development (R&D) foreign direct investment (FDI) strategies of Chinese multinational corporations (MNCs) in Europe. Through archival research and interviews, we adopted a multi‐case study approach to investigate how significant are these investments and how relevant do they become for the local innovation systems. Our analysis shows that the establishment of R&D centers, and more importantly the evolution of these centers, does not coincide with what international business theories would have predicted. The Chinese MNCs considered entered Europe in a variety of forms, guided by various learning goals. However, we found evidence of the growing tendency of these companies to insulate themselves from local partners and to engage in less explorative and more exploitative R&D activity, adapting technologies developed elsewhere for the European market, gaining access to good indigenous labor and technologies rather than to local partnerships.     

选择性单位点PCR检测在案件中的应用

采用以DIS80为首选位点初检,再行STR位点扩增、检测的方法.在涉及大量嫌疑人排查的重大犯罪案件中,充分发挥出DNA-PCR快速、准确排查、认定犯罪嫌疑人的作用.DIS80位点排除率达90%以上,HU-MACTBP_2,AluVpA,TH01,TPOX位点同一认定平均偶合率低于1.5×10~(-8).     

Public markets, private orderings and corporate governance

In the New Property Rights approach the degree of incompleteness of markets is taken independently of the cost of the public ordering and of their efficiency relatively to private orderings. In this approach “public markets,” similarly to a Swiss cheese, are either assumed to be nonexistent empty holes (because of infinite third party verification costs) or assumed to be smooth and efficient (because of zero third party verification costs). When we allow for positive but not infinite third party verification costs we are necessarily pushed back to the insights of Commons, Coase, Fuller and Williamson. The degree of (in)completeness of public markets becomes an endogenous economic problem and managers can be seen as agents that make “second order” specific investments to run specific relations that cannot be efficiently handled by public markets. Managers and the public authorities build respectively private and public “legal equilibria” that set the working rules within which transactions can take place. Private and public legal equilibria are not only substitutes but also complements. This complementarity is an important source of the path dependency that characterizes the development of different legal systems. The framework is applied to GM’s acquisition of Fisher Body. We suggest that, contrary to the claims of the New property Rights approach, the advantages of the acquisition were not due to the superior incentives of the new private owners but should be rather related to the replacement of public markets by the new private ordering set up by Alfred Sloan.