神经干细胞体外诱导分化的研究进展

神经干细胞是近年来脑科学研究的热点,其自我更新和多向分化的潜能为中枢神经系统疾病的治疗提供了可能,但如何使神经干细胞向特定的方向分化却一直是研究的难点。本文对神经干细胞体外的诱导分化因素及分化过程中的相关蛋白质组的研究做一综述。     

When studying schooling is not enough: Incorporating employment in models of educational transitions

Several recent studies have demonstrated the importance of incorporating qualitative differentiation within educational systems in the study of class inequality in student transitions. We extend these endeavors by broadening the definition of differentiation to include participation in the labor market. As increasing proportions of students continue their educational journeys beyond compulsory schooling, they are considering not only whether to stay in school but also whether to simultaneously enter the world of work. Using data from the National Longitudinal Survey of Youth of 1997 (NLSY97), we show that family background influences not only whether students make specific educational transitions but also whether they combine those educational transitions with work. Student trajectories are also path dependent, with employment during one educational transition being related to specific transition patterns at a later point in time. Considering how students combine school and work reveals another dimension of differentiation which can be exploited by socioeconomically advantaged families to “effectively maintain” inequality in educational outcomes.     

流动人口居留意愿内部分化研究——以温州市为例

利用2009年在温州市进行的人口结构变化专项调查资料,将流动人口作为一个非均质的整体进行研究,采用数据交叉分析方法,分析了流动人口内部在居留意愿上的分化,并对流动人口居留意愿的影响因素进行了多分类的logistic回归分析。结果表明,大部分流动人口尚未有在流入地长期居留的打算,但滞留趋势明显;打算最终返乡的流动人口比例较高,非永久居留是一种常态化的现象;流动人口内部在居留意愿上存在明显分化。结合以上分析,讨论了流动人口居留意愿分化对制定流动人口政策和选择城市化战略等方面的思考。     

中国城市“居住分异”模式的问题与对策

当前,我国城市化进程逐渐加快,导致城市发展出现一系列城市病问题,城市居住区呈现出越来越明显的"居住分异"现象,整个城市形成一种居住空间分化甚至相互隔离的状况,给社会健康发展带来一系列负面影响。混合居住是目前解决居住分异的一种重要途径。混合居住模式以消除居民的社会差异为住宅建设的社会意义和目标,是解决不同社会阶层隔离、促进不同居民交往的有效方法,有利于营造和谐的居住模式。     

从"君臣之义"到"君臣道合"——论唐宋时期君臣观念的发展

语汇是思想的表现,语汇的变化也是思想观念变化的反映。从先秦时期既已广泛使用的君臣之义,到隋唐之际开始出现的君臣道合,虽然二者的内涵有相通之处,但无论是语境还是语汇所折射出的政治意义都不能简单地等量齐观。这一语汇上的变化所揭示的是唐宋时期君臣双方对二者关系的一种新认识。     

The necessities of violence

The paper notes an increasing concern with organisational violence, but also that much of the work considers violence to be a problem requiring functionally effective solutions. We argue for a more radical view of violence, which sees it as inherent to all manner of organising processes, including writing, editing and publishing. The paper considers violence in the establishment and maintenance of order, as constituted in acts of organising, inherent to Self‐Other relationships, in the politics and dynamics of difference, and in issues of identity formation.     

知识服务业产业效能研究:理论与实证分析

知识服务业具有内部和外部两大产业效能:借助这两大效能,知识服务业通过专业人员和专业手段为其他产业提供各类知识服务产品,将知识资源最有效率地配置到企业、个人或公共部门中去,从而促进当地经济的增长.全国特别是北京、上海和浙江地区知识服务业的发展与经济增长之间的实证分析有力地支持了这一结论.     

A process-oriented perspective on differential business value creation by information technology: An empirical investigation

The relationship between information technology investments and firm value as an area of inquiry has sustained interest among IS researchers over the past decade. More recently, some have challenged the notion differential value among firms through Information Technology (IT) as it evolves into a ubiquitous utility-like set of technologies. This study examines the relationship between IT and business value from a process-oriented perspective, and also helps to identify the underlying links between IT and its differential business value to firms. By drawing upon economic and organizational theories, this paper develops a process framework to assess the intermediate organizational process capabilities and overall performance of firms that effectively deploy and use IT. Using data from over 80 firms, the study finds empirical support for the differential business value created by IT along a number of process oriented dimensions. These findings are discussed as these results set an optimistic tone for IT as a major causal driver of differentiation.     

试论中国公立高校多元利益主体的生成

计划体制下,中国公立高校内部的利益是高度一致的。随着经济体制、政治体制、教育体制改革的深化,中国公立高校发生了深刻的变化,形成了多元利益主体并存的局面。首先,高校摆脱了“政府附属物”的局面,成为“自主办学的法人实体”,政府转变为多元利益主体的一方（当然是最重要和主要的一方）;共次,以教师为代表的教职工群体改变了“单位所有”的身份,与高校形成了合同聘约关系,也成为有自身利益诉求的利益主体;再者,学生缴费上学,自主择业,不再是统包统分的“准国家干部”,他们与学校的关系越来越带有“消费者”的色彩;还有,高校管理者的身份复杂起来,他们除了代表政府的利益,还代表着教职工和学生的利益;最后．由于投资主体多元化,使得“获取回报”的合作者介入大学的投入与发展,他们的利益又有其独特性。分析利益格局的变化,会为现代大学制度建设找到一个新的视角和基石。     

Towards a 'Movement Society'? On the possibilities of institutionalizing social movements

Social movements come into existence only on the basis of certain preconditions. The concurrence of distinct factors on the levels of individual experience, collective framing and societal structure favour the emergence and stabilization of social movements. Drawing on a model that links these three levels with aspects of problematization, mobilization and stabilization, we argue that there is a growing probability for social movements to come into existence. This probability stems mainly from a set of macro-structural trends and their problematic effects that can be interpreted in terms of differentiation theory. Instead of encompassing and stable class movements as represented, for example, by the labour movement, we expect a multitude of more situationally bound movements that vary considerably in their themes, social bases and forms. It is precisely this heterogeneity of movements that is an enduring feature of contemporary Western societies.