论循环经济条件下建筑材料的开发与利用

在总结建筑材料开发与利用现状及存在的问题并深入分析其原因的基础上,遵循循环经济"减量化、再使用、再循环"的3R原则,从转变观念意识、加强科技创新、致力体制改革、严格管理等方面,提出了建筑材料开发与利用的对策。     

中国工程外迁移民置换安置模式的审视——以江苏省大丰市移民安置点为个案

本文以三峡外迁移民安置试点单位大丰市为个案,在前文分析的基础上,从外在条件制约、旧房纠纷、跟踪监督机制、移民对象要求等方面,对“选购旧房安居、置换土地生产”的安置模式作了认真的检讨,以使我们在认识和运用置换安置模式时有一清醒的头脑。     

辽宁省新型农村合作医疗调查与思考

以随机抽样方式对辽宁省法库县冯贝堡村农民进行问卷调查，分析研究了辽宁省实行新型农村合作医疗的进展情况、存在的一些问题及解决的对策。通过分析农民对新型农村合作医疗制度参与情况得出：农民参合率有待进一步提高；以保大病为主，降低了农民的受益面；规定定点医院，农民选择余地较小；农民经济负担没有从根本上减轻。因此提出通过加强宣传工作力度，扩大定点医院范围，加强立法工作，加大财政投入力度等对策，更好地完善新型农村合作医疗制度。     

“交际能力”理论对外语教学的启迪

交际能力包括语言知识和能力、社会语言能力、语篇能力、应变能力.交际能力理论强调在教材中体现语言材料的真实性;强调整个语言教学应围绕交际过程展开,即利用各种教学手段创设生活、工作情景,把学生置于尽可能真实的语言环境中,使他们能身临其境进行交际,从而提高外语交际能力,达到外语教学的目的.     

罗马法的历史成就对我国法制建设的启迪

罗马帝国时期的法律 ,以其深邃的法律思想、深刻的法学理论、科学的结构体系和合理的法律分类 ,征服了整个世界 ,是人类法制史上最珍贵的历史遗产。我们应依据罗马法的具体内容 ,分析其取得辉煌成就的历史原因 ,认真探讨对加速我国法治进程的有益启示。     

Safety Stock,Excess Capacity or Diversification: Trade‐Offs under Supply and Demand Uncertainty

Firms mitigate uncertainty in demand and supply by carrying safety stock, planning for excess capacity and diversifying supply sources. In this study, we provide a framework to jointly optimize these three levers in a periodic review infinite horizon setting, and in particular we examine how one can reduce inventory and capacity investments through proper diversification strategies. Observing that a modified base‐stock inventory policy is optimal, we find that the capacity‐diversification problem is well behaved and characterize the optimal mix of safety stock, excess capacity and extra number of supply sources. We find that higher supply uncertainty results in higher safety stock, more excess capacity, and higher diversification. But safety stock and diversification are non‐monotonic in demand uncertainty. Our results can be extended to situations in which suppliers are heterogeneous, and can be used to develop effective heuristics.     

论大学国际化对城市国际形象的提升作用--以常州大学的国际交流为例

大学的国际化发展与所在城市的国际形象存在着高度正相关性,对城市国际形象的塑造和推广发挥着积极的提升作用。大学可以通过教育国际交流的平台扩大城市的对外交往,为城市经济发展提供国际化的人才保障,在文化传承和跨文化交流中促进城市的人文环境建设,依托国际科研合作项目激发整体城市的科技创新活力。     

The influence of network structures of Wikipedia discussion pages on the efficiency of WikiProjects

As a platform for discussion and communication, talk pages play an essential role in Wikipedia to facilitate coordination, sharing of information and knowledge resources among Wikipedians. In this work we explore the influence of network structures of these pages on the efficiency of WikiProjects. Project efficiency is measured as the amount of work done by project members in a quarter. The study uses the comments on WikiProject talk pages to construct communication networks. The structural properties of these networks are studied using ideas from social network theory. We develop three hypotheses about how network structures influence project effectiveness and examine the hypotheses using a longitudinal dataset of 362 WikiProjects. The evaluation suggests that an intermediate level of cohesion with a core of influential users dominating network flow improves effectiveness for a WikiProject, and that greater average membership tenure relates to project efficiency in a positive way. We discuss the implications of this analysis for the future management of WikiProjects.     

Barriers to the Uptake of Emergency Accommodation by Young Runaways and Thrown‐out children and the Role of the ‘Transitional Person’

Young runaways and thrown‐out children, under‐16, face a number of barriers to accessing safe emergency accommodation. The need for such accommodation is not always apparent because children sometimes make themselves invisible to services through fear of being returned or fear of being removed from inappropriate accommodation. Young people's retrospective accounts of their experiences suggest the importance of a ‘transitional person’, an adult who has a pivotal role in trust‐building and who acts as a conduit to services and helps runaway and thrown‐out children overcome internal and external barriers to uptake of emergency accommodation.