A comparative study on a permutation statistic

We studied asymptotic distribution and finite sample properties of a randomly weighted permutation statistic. The asymptotic normality and the finite sample simulations derived from our studies provided theoretical and numerical justifications for distributional assumption of many useful test statistics used in identifying spatial autocorrelations of mapped data. We compared a new method in computing the mean and the approximated variance of the randomly weighted D statistic, a special permutation statistic, with the Walter’s conditional method. In the numerical illustration of the method, we calculated the standardized values of the D statistic by subtracting the mean from the D statistic and dividing the difference by the standard deviation for the standardized mortality ratios (SMRs) and the life expectancies among the 48 states of the continental USA. Spatial autocorrelations of the SMRs and the life expectancies were found to be statistically significant.     

无形中的有形——赛珍珠论中国小说的形式

赛珍珠在1932年2月所作的两场报告中,通过比较中西方小说的异同,试图证明在西方人眼里缺乏形式的中国小说其实具有独特的、和西方小说截然不同的艺术形式,并且试图从中国文化里挖掘这种形式的"渊源"。赛珍珠对中国小说形式的讨论反映出她对中国传统文化"形式"的态度,是她对中国知识分子思想和心态的理解和思考,对20世纪上半叶中国知识界对中国传统文化进行重新定位、对中国文化何去何从这个严肃的问题进行的思考。尽管赛珍珠的主张并不一定具有典型性,她本人对中国文化的看法也有简单化理想化之嫌,但是今天重读赛珍珠的这两篇讲话无疑有助于我们更好地把握自己的文化。     

杜鲁门政府的中日贸易管制政策

杜鲁门政府时期,美国的对日政策、对华政策出现了根本性的转变,带动了美国对中日贸易管制政策的调整,即从允许中日进行易货贸易转向迫使日本对中国实施比巴统"中国委员会"其他成员国更为严厉的管制。探索该变化发展过程可以发现:杜鲁门政府的中日贸易管制政策与其对华经济遏制政策、对日经济复兴政策和对东南亚的政策互为因果,彼此影响,共同推动了亚洲冷战的进程。     

企业家社会角色经典研究的比较

熊彼特和德鲁克两位大师的企业家研究 ,都是企业家社会角色的研究。他们的认识虽有所不同 ,但其企业家精神及其主要思想全然一致。他们明确指出企业家的基本行为和职责是创新 ;企业家具有促进经济发展的重要作用 ,对其它社会领域的变易起先导作用。他们的思想对澄清国内在“企业家”含义上的模糊认识 ,对创设企业家涌现的社会环境会有重要意义     

再谈李约瑟及其"李约瑟难题"

李约瑟博士怀着对中国人民的深厚感情,孜孜不倦于中国科学技术史研究,他著的<中国科学技术史>对中国古代科学技术做出了实事求是的总结与概括,对世界了解中国,消除误解与偏见作了极好的宣传.他对中国科学技术史的研究不存在"拔高"或"说好话"的倾向.他的<中国之科学与文明>被译成<中国科学技术史>并无不妥.否定"李约瑟难题"缺乏理论根据.     

从不同的角度刻画系统

本文首先论述了从不同角度描述系统的必要性和依据,然后结合一个简例探讨了从不同角度设计模型的基本思路,最后提出了角度相对性的概念。因此,本文对于描述系统,尤其是描述复杂系统的方法论研究可能是有益的。     

Documentation in evaluation research: Managerial and scientific requirements

Documentation in evaluation research consists of written material, in human- or machine-readable form, pertaining to the plans, activities, and results of the project. It is argued here that good documentation is essential for effective management of evaluations, and for responsible reporting of the research procedures and findings. Documentation relating to electronic data processing activity is especially important. The purpose of this paper is to stimulate consideration and discussion of documentation, and to emphasize its importance in evaluation research. The role of documentation in the planning and control functions of project management is reviewed, and the importance of documentation in the assessment of research quality with respect to objectivity, validity, and replicability is discussed. Reasons for poor documentation are considered. An outline of documentation required in different phases of research projects is provided, and recommendations for improving the quality of documentation are presented.     

三层B／S结构网上选课系统设计与实现

论述了基于三层B/S结构的网上选课系统的设计与实现方法。系统利用三层结构的优点实现了网上的学生选课、选课管理、选课查询等功能。     

一个心音的回响--谈卞之琳对艾略特的接受和作品创生

就卞之琳所受艾略特影响并与之契合的过程,研究中国现代派作家在借鉴与自创的过程中的心路历程及对中国现代主义诗歌理论的化欧贡献.     

A revised behavioral model of consumer durable demand

A general model of consumer demand for durable goods has recently been proposed by Pickering (1978,1981). Of particular note is the use of expectations of both personal financial and general economic conditions to capture the consumer's willingness to buy. However, it is argued first that these two expectations have Jointly interdependent rather than unique contributions to consumer confidence. In addition, it is proposed that the concept of expectations should be extended to specific product attributes as well. Pickering's model is subsequently revised to incorporate the conceptual modifications.