教风和学风建设是民办高校教学管理的核心

教风和学风建设问题,始终是高等学校建设的核心问题。本文分析了民办高校教风、学风的现状和问题,提出民办高校要以教风建设和学风建设为核心,以教风建设带动学风建设,以学风建设促进教风建设,形成"双核互动"机制,切实达到提高教学质量的目的。     

Risk Aversion in Travel Mode Choice with Rank-Dependent Utility

Using 2004 stated preference data on travel mode collected in the Zürich area, different parametric specifications of the rank-dependent utility function in a logit mixture model show that commuters are weakly averse to small-time losses. The results also justify Yaari's dual theory of choice under risk, that the utility function is linear on outcomes but that the perception of corresponding probabilities is biased. For leisure travel, the travelers are risk neutral to small losses of time.     

Variability of Travel Time,Congestion, and the Cost of Travel

The variability of travel time modifies the rush hour traffic and the cost of commuting. The bottleneck model of road congestion with fixed peak-load demand is augmented of an additive random delay. When individuals have (α-β-γ) preferences, there exists a unique Nash equilibrium. The variability of travel time leads to departure rates that are spread more evenly over the rush hour than when travel times are deterministic. This equilibrium mechanism mitigates both congestion and the cost of unreliability. This implies that “single-traveler models,” which treat congestion as an exogenous phenomenon, overestimate the value of reliability for the rush hour. The application with the uniform or with the exponential distribution helps appraise the overestimation.     

发展西北边疆小商品经济的政策思考

改革开放以来,中国经济社会发展一个重要经验是发展乡镇经济,而乡镇经济的优势产业就是小商品生产。边疆民族地区应充分借鉴这一经验,发挥传统小商品经济优势,促进城乡各民族共同繁荣。这就需要提供特殊的民族贸易保护政策。例如,享受免征增值税政策,优惠贷款政策,国家专项扶持资金政策等等,同时积极构建向西开放的小商品基地。     

Can Multinational Corporations Afford to Ignore the Global Common Good?1

Contemporary advances in the fields of globalization and technologies raise the question of the relationship between international business and the global common good. Half of the hundred biggest economies in the world are now corporations. Nation‐states were traditionally viewed as the guarantors of the common good; however, the current historical stage is marked by the waning of the role of government, and reveals an emerging situation characterized by a co‐responsibility of multiple agents in this respect. Three major evolutions are likely to induce multinational corporations (MNCs) to take the global common good into account: the imperative of the preservation of our biosphere, the rise of an anti‐globalization sentiment with all its potential consequences, and the necessity to design a global social contract. Besides, these three phenomena are interconnected, which adds to the pressure on MNCs to change their policies.     

黑龙江省某达斡尔民族学校课程设计与开发的个案研究

以黑龙江省某达斡尔民族学校为个案,探讨了以培养学生民族文化认同感为核心的课程设计与开发,强调当地民族文化课程资源的整合是使达斡尔民族文化完成文化化人的一个前提。对达斡尔民族文化课程开发的意义、达斡尔民族文化传承的教育现状问题以及达斡尔民族文化传承的田野研究:课程设计与开发,包括课程设计与开发的维度、开发途径及课程实施策略等问题进行了分析与探讨。提出了达斡尔民族文化得以保护与传承的重要方式就是通过教育,通过课堂教学,而课程设计与实施要回归生活世界。     

On Optimal Point and Block Prediction in Log-Gaussian Random Fields

Abstract.  This work discusses the problems of point and block prediction in log-Gaussian random fields with unknown mean. New point and block predictors are derived that are optimal in mean squared error sense within certain families of predictors that contain the corresponding lognormal kriging point and block predictors, as well as a block predictor originally motivated under the assumption of 'preservation of lognormality', and hence improve upon them. A comparison between the optimal, lognormal kriging and best linear unbiased predictors is provided, as well as between the two new block predictors. Somewhat surprisingly, it is shown that the corresponding optimal and lognormal kriging predictors are almost identical under most scenarios. It is also shown that one of the new block predictors is uniformly better than the other.