中国现代主义文学流派简论

中国20世纪100年的现代主义学，呈现出鲜明的地域特征并形成其独有的历史发展规律，它对20世纪中国学产生了重要而深刻的影响。     

第三届全国青年史学工作者学术会议综述

第三届全国青年史学工作者学术会议是世纪之交全国青年史学工作者的盛会。会上，代表们就20世纪中国史学回顾、21世纪中国史学走向、历史学的定位及功能等问题展开了热烈地讨论，精彩纷呈。与会学者在中国古代史、中国近现代史、世界史等领域的一些专门问题上也发表了饱含深邃智慧的见解。     

Dynamic Stackelberg games under open-loop complete information

Stackelberg games, which play extremely important roles in such fields as economics, management, politics and behavioral sciences, can be modelled as a bilevel optimization problem. There exist extensive literatures about static bilevel optimization problems. However, the studies on dynamic bilevel optimization problems are rather scarce in spite of the importance in explaining and predicting some phenomena rationally. In this paper, discrete time dynamic Stackelberg games with open loop complete state are revisited. An example, which comes from law field, is presented as an open-loop Stackelberg game to illuminate the rangy application of game theory. A property based on Bellman's equation is proposed without any restriction about inner point solution for open-loop Stackelberg games in this work. Moreover, we point out that open-loop Stackelberg games perform no better than both feedback and closed-loop dynamic Stackelberg games with complete information, which seems quite valuable to explain some social and economic phenomena.     

Which children benefit from non-parental care?

This paper investigates the relationship between non-parental care and toddlers’ behavioral outcomes using data from Australia. In particular, we explore heterogeneity in the relationship using the unique data on quality attributes: carer/child ratio, share of qualified staff, and expert ratings. The results suggest that full-time non-parental care, particularly center care, is negatively associated with toddlers’ behavioral outcomes. The negative association is however mitigated when centers have a larger number of carers per child. The negative association between non-parental care and behavioral outcomes also appears to be larger for children with better-educated parents.     

高校用户数字信息获取行为优化探究

从馆藏数字资源的在线使用情况、用户使用比例及高层次用户群获取数字信息的渠道3个层面,对高校不同层次用户群数字信息获取行为及其与二八法则、长尾法则的契合点进行分析的结果表明:图书馆在引导用户优化数字信息获取行为时应重视20%学科专家的信息影响力,以此带动80%用户信息素养的整体提高;应引导用户有效利用长尾尾部的数字信息获取渠道;应组织、揭示数字信息,引导用户需求向长尾尾部移动。     

On the stability and boundedness of a class of higher order delay differential equations

We establish some sufficient conditions which guarantee asymptotic stability of the null solution and boundedness of all the solutions of the following nonlinear differential equation of third order with the variable delay, r(t)

     

基于长尾理论的期刊情报建设与服务实证研究——个案分析在长春师范学院的实现

近年来,图书情报界的热点话题——二八定律&长尾理论已逐步渗入到图书馆学知识服务的各个环节。本文仅以期刊情报资源的建设和服务实践水平的提升为切入点,从理论与实践相结合的角度阐释普通高校图书馆期刊资源如何面对长尾理论的挑战,并提出了一些切实可行的、带有普遍性的应对措施,以供参考。     

引文网络中入度分布的特征研究——以图情领域为例

以图情领域的四种优秀期刊为数据来源,借助散点图与曲线拟合的方法,在论文、作者、机构三个层面上归纳了引文网络中入度分布的三个特征。其一,三个层面的入度分布均呈现幂律分布,优先连接机制起明显作用;其二,在机构的入度分布出现了单峰,即均匀连接机制存在于引文网络中,且削弱了入度分布近似直线的程度;其三,二八律与幂律分布存在紧密联系。论文最后对这些特征的形成原因进行了分析。     

儿童英语习得性无助的正确归因与干预

习得性无助感是一种普遍存在的心理障碍,在小学英语学习过程中,由于小学生内因如缺乏成功体验、不恰当的归因和不正确的比较以及家庭、学校和教师的外因共同影响下的一种低自我效能感、低学习动机的认知障碍。通过集体干预的形式,从儿童的英语学科核心能力、归因方式、自我认知以及家长认知四个方面进行干预,旨在将儿童习得性无助感转变为高自我效能感。     

百年变迁的忠实记录——读《20世纪以来中国的图书馆事业》

《20世纪以来中国的图书馆事业》系统地反映了20世纪中国图书馆的发展面貌,重点叙述了改革开放30年来图书馆的变化,用发展的眼光评论了图书馆工作与技术的进步。全书史料丰富、脉络清楚,具有较高的参考价值。