地方高校专升本班级管理面临的问题及对策研究

地方高校专升本后,应构建班级文化管理、强化班级人本管理、实现班级自主管理,促进专升本班级发展。     

类矩形双肢钝体涡致振动和气动抑振机理

针对具有类矩形双肢钝体断面拱肋的大跨度拱桥在风洞试验过程易出现大幅涡激振动问题，沿拱肋模型表面进行动态风压同步测量及基于POD算法的本征气动力荷载分布模式分解，获得了涡振发生时对于周期性涡激力具有最大贡献的气动力荷载作用位置，初步揭示出此类断面涡激动发生时的局部气动力荷载作用机制。以上海卢浦大桥和肇庆西江特大桥此类具有双肢钝体断面拱桥为工程实例，结合涡激气动力沿拱肋周向时空气分布特征，提出并以二维悬吊节段模型风洞试验验证了拱肋断面多种有针对性的气动控制措施；结合实际桥梁拱肋的三维空间效应，利用全桥气弹模型     

金钥匙考——古代中外文化交流之一例

唐安史之乱后,藩镇割据势力曾有向北方的回纥政权纳上＂金钥匙＂而称臣的举动。＂金钥匙＂是一种权力的表征,但是追寻其本源,却发现在中国古代的语言环境中,＂金钥匙＂的象征意义与此相异。＂金钥匙＂这种象征权力的形而上的意义,与西方的希腊文明、罗马文明等基督教文明及伊斯兰文明有关。这样的传统随着渊源于地中海东岸一带的火祆教、景教以及伊斯兰教特别是摩尼教的向东流传而流传。而大量的昭武九姓胡人或到达新疆,或向着东北及河朔之地迁徙,这种象征权力的金钥匙制度从西方经中亚传向中原也是有可能的。     

Asymmetries in Information Processing in a Decision Theory Framework

Research in psychology suggests that some individuals are more sensitive to positive than to negative information while others are more sensitive to negative rather than positive information. I take these cognitive positive–negative asymmetries in information processing to a Bayesian decision-theory model and explore its consequences in terms of decisions and payoffs. I show that in monotone decision problems economic agents with more positive-responsive information structures are always better off, ex ante, when they face problems where payoffs are relatively more sensitive to the action chosen when the state of nature is favorable.      

On square ordinal contingency tables: a comparison of social class and income mobility for the same individuals

Summary.  Square contingency tables with matching ordinal rows and columns arise in particular as empirical transition matrices and the paper considers these in the context of social class and income mobility tables. Such tables relate the socio-economic position of parents to the socio-economic position of their child in adulthood. The level of association between parental and child socio-economic position is taken as a measure of mobility. Several approaches to analysis are described and illustrated by UK data in which interest focuses on comparisons of social class and income mobility tables that are derived from the same individuals. Account is taken of the use of the same individuals in the two tables. Additionally comparisons over time are considered.     

控股股东掏空动机与多元化的盈余波动效应

多元化经营是公司关注的重大发展问题,因此,多元化经营的动机及其经济后果也成为学者们研究的重点话题。本文从我国上市公司的多元化经营与盈余波动性之间的关系入手对这一问题进行研究,具体分析了公司多元化经营的程度对盈余波动性的影响及控股股东的掏空动机对多元化盈余波动效应的作用。研究发现,我国上市公司的多元化经营显著降低了公司的盈余波动性,多元化程度越高,盈余的波动性越低;但由控股股东代理问题而形成的掏空动机损害了多元化的盈余波动效应。本文的研究为多元化的经济后果增添了新的文献,同时也为上市公司监管提供了参考依据。     

Empirical likelihood for density-weighted average derivatives

In this paper, we investigate empirical likelihood (EL) inference for density-weighted average derivatives in nonparametric multiple regression models. A simply adjusted empirical log-likelihood ratio for the vector of density-weighted average derivatives is defined and its limiting distribution is shown to be a standard Chi-square distribution. To increase the accuracy and coverage probability of confidence regions, an EL inference procedure for the rescaled parameter vector is proposed by using a linear instrumental variables regression. The new method shares the same properties of the regular EL method with i.i.d. samples. For example, estimation of limiting variances and covariances is not needed. A Monte Carlo simulation study is presented to compare the new method with the normal approximation method and an existing EL method.     

上海流动儿童的精神健康：一项探索性研究

中国的农村劳动力流动持续到现在，流动儿童即第二代移民问题已经浮出水面。但是，流动儿童精神状况问题没有引起研究人员的特别重视并成为专门的研究领域，而这恰恰是一个关乎城市长期发展和社会稳定的重要议题。本研究对上海市某小学的儿童进行了问卷调查，问卷包括国际流行的儿童抑郁量表和焦虑量表。研究发现上海市流动儿童存在一定程度的抑郁和焦虑。论文最后部分提出对于如何干预流动儿童心理问题的对策和建议。     

视域置换与模式创新——论生活世界视域下思想政治理论课的实践教学

实践教学是思想政治理论课教学的重要环节,是提高教学效果、达到教学目的的必要途径。当前,思想政治理论课面临着时代的严峻挑战。为了切实改变陈旧的教学观念和僵化的实践教学模式,达到理想的教学效果,必须以人的生活世界为根本视域,实现思想政治理论课教学视域的彻底置换,从全新的视角审视实践教学中的师生关系,以创新的姿态不断改进实践教学模式。     

中美俄博弈模式分析:决策层级、动机及过程

以中美俄博弈的决策模式为研究对象,并通过列举中美和中俄两个具有合作性质的博弈案例,进而深入分析中美俄博弈的决策角色、决策动机和决策过程,指出决策角色可分为第一层级、第二层级和辅助层级,而国家利益是最重要的决策动机.为了追求决策效率,三国决策者紧密控制决策过程,防止其他权力部门分享决策权.