《楚辞·天问》所见姜太公事迹考——释“迁臧就岐，何能依？殷有惑妇，何所讥”

郭店楚简有关“吕望为臧”的事迹。为解释《天问》“迁臧就岐，何能依？殷有惑妇，何所讥”一节提供了重要依据，结合《庄子·田子方》篇相关记载，可以推知该节是对姜太公传说的记述。     

物联网及其在物流产业中的应用研究

作为一项战略性新兴产业，物联网的出现正在改变着社会的生产方式、生活方式和生存方式。本文探讨了物联网的主要关键技术构成，并深入分析其在运输、仓储、配送和物流信息平台建设等方面的应用，最后指出物联网在物流产业中应用所面临的困难和挑战。     

Adapting by calibration the sample size of a phase III trial on the basis of phase II data

The problem of estimating the sample size for a phase III trial on the basis of existing phase II data is considered, where data from phase II cannot be combined with those of the new phase III trial. Focus is on the test for comparing the means of two independent samples. A launching criterion is adopted in order to evaluate the relevance of phase II results: phase III is run if the effect size estimate is higher than a threshold of clinical importance. The variability in sample size estimation is taken into consideration. Then, the frequentist conservative strategies with a fixed amount of conservativeness and Bayesian strategies are compared. A new conservative strategy is introduced and is based on the calibration of the optimal amount of conservativeness – calibrated optimal strategy (COS). To evaluate the results we compute the Overall Power (OP) of the different strategies, as well as the mean and the MSE of sample size estimators. Bayesian strategies have poor characteristics since they show a very high mean and/or MSE of sample size estimators. COS clearly performs better than the other conservative strategies. Indeed, the OP of COS is, on average, the closest to the desired level; it is also the highest. COS sample size is also the closest to the ideal phase III sample size M_I, showing averages and MSEs lower than those of the other strategies. Costs and experimental times are therefore considerably reduced and standardized. However, if the ideal sample size M_I is to be estimated the phase II sample size n should be around the ideal phase III sample size, i.e. n?2M_I/3. Copyright © 2010 John Wiley & Sons, Ltd.     

行业干中学、市场规模与市场结构——中国微观制造企业的实证研究

本文使用中国制造业微观企业1999至2007年的大样本数据,探讨干中学在市场规模扩张的过程中对市场结构动态变化的影响。研究发现,干中学有助于提高行业市场集中度的下限;其次,在较低的干中学行业中,随着市场规模的增加,行业会形成无序的片状的市场结构,行业集中度极度分散;然后,在动态的市场结构中,行业的干中学效应有助于缓解市场结构扩散,使行业市场结构的变动保持一种"粘性";最后,在很高的干中学行业中,行业的市场集中度会呈现U型的态势,当市场规模达到最佳市场规模后,行业的市场集中度开始上升,此时,内生的市场壁垒会催生行业的市场势力。     

Some sampling effects of pairwise correlated observations on likelihood ratio tests for the difference between two means

We study the effects of the inclusion of pairs of correlated observations in a sample on likelihood ratio tests for the difference in two means. In particular, we assess how the inclusion of correlated data pairs (e.g., such as data inadvertently collected from sib-pairs) affects the sample size requirements necessary for the implementation of a Likelihood Ratio (LR) test for the difference between two means. Our results suggest that correlated data pairs beneficially or adversely effect sample size requirements for an LR test to a degree functionally related to the mixture parameters dictating their relative frequencies in the larger sample on which the test will be performed, the strength of the correlation between the observations, and the size of imbalances in the sample with respect to the number of observations in each group. The relevance and implications of the results for genetic and epidemiologic research are discussed.     

Reporting cumulative proportion of subjects with an adverse event based on data from multiple studies

Experience has shown us that when data are pooled from multiple studies to create an integrated summary, an analysis based on naïvely‐pooled data is vulnerable to the mischief of Simpson's Paradox. Using the proportions of patients with a target adverse event (AE) as an example, we demonstrate the Paradox's effect on both the comparison and the estimation of the proportions. While meta analytic approaches have been recommended and increasingly used for comparing safety data between treatments, reporting proportions of subjects experiencing a target AE based on data from multiple studies has received little attention. In this paper, we suggest two possible approaches to report these cumulative proportions. In addition, we urge that regulatory guidelines on reporting such proportions be established so that risks can be communicated in a scientifically defensible and balanced manner. Copyright © 2010 John Wiley & Sons, Ltd.     

论慧超旅行巨著《往五天竺国传》

慧超是唐代著名的佛教学者，也是一个伟大的宗教旅行家。文章从文学、史学及旅游学三方面评价了其旅游巨著《往五天竺国传》的创作经历及学术价值。     

高校教学人员编制管理探讨

高校教学人员编制占学校人员编制总数的一半以上，是高校编制工作的重要组成部分。文章从教学人员编制的本质入手，分析了目前普遍采用的教学人员编制核算方案，进而对高校教学人员编制的管理与核算工作提出了一些建议。     

A study of BIB designs through support matrices

This paper deals with the existence and nonexistence of BIB designs with repeated blocks. The approach is an algebraic one. The concept of a support matrix is introduced and some of its basic properties are noted. Some basic examples of support matrices are given when the block size is 3. The connection between full column rank proper support matrices and irreducible designs is explored and some examples of such matrices are given.     

中国特色之路——党的领导集体对中国特色社会主义的贡献

中国特色社会主义是中国共产党对社会主义理论和道路的创新。中国共产党人坚持把马克思主义基本原理与中国的实际相结合，逐步开创出一条中国特色社会主义的强国之路，取得了令世人瞩目的成就。在这个过程中，中国共产党人始终坚持解放思想、实事求是，既勇于实践，又勇于理论创新，带领全国各族人民，不断推动中国社会主义事业向前发展。