"天书降神"新议--北宋与契丹的文化竞争

宋真宗"天书降神"一事,不但为当时"不语怪力乱神"的儒者反对,亦为今世秉后见之明,崇尚"理性"、"科学"的学人严厉批判.但元儒修撰<宋史>,于此曾表"同情之理解".本文即以此为起点,以考据为基础,试图揭示"天书降神"背后的文化意蕴和实际效果,并提出与亨廷顿"文明冲突"(the clash of civilizations)不同的观念--"文化竞争"(the cultural struggle).     

转型经济体制下创业团队的先前经验、无力感与适应能力

在资源依赖理论的基础上,从创业团队的先前经验出发,通过分析4家高科技创业企业的案例资料,考察了创业团队无力感与适应能力之间的关联性,并分析了创业团队的认知趋同性对该作用过程的影响机制,从而为新创企业提高在动态环境中的生存能力提供建议.研究表明,创业团队先前经验可以降低团队成员的无力感,从而提升团队的适应能力,且当创业团队认知趋同性越高时,无力感与适应能力的负向作用越强.     

覆盆得雪发余晖报国文章彩笔挥--《雪岭重泽》卷三序言

薛文波先生是上世纪著名的回族学者,学识渊博,多才多艺.一生汲汲追求真理,为弘扬回回民族爱国爱教的传统精神而努力.中年遭遇冤案,蒙受巨大苦难;晚年幸逢改革开放,以有限的精力投入到回族历史文化和中国伊斯兰教问题的研究,取得重要成绩,对回族学学科的建设作出了重要贡献.他的遗稿已被汇编成<雪岭重泽>1、2两卷出版,今逢薛先生逝世20周年之际,<雪岭重泽>的第3卷即将出版,作者特撰序言以志纪念.     

《全清词·雍乾卷》辑补74首

《全清词·雍乾卷》共收词人近1000家，词作35000多首。然由于清代词籍的复杂性，遗漏在所难免。今翻检清人诗文集及地方志等，为之补录4家词作74首，以备续编采择之需。     

Introduction: Aspiring migrants,local crises and the imagination of futures ‘away from home’

This special issue addresses the imagination of futures ‘away from home’ in a globalising world. While a growing number of migration scholars have taken into account that migration considerations are always socially embedded and culturally informed, the processes at work among a mounting number of (young) men and women throughout the world, who are convinced that a better life can only be found ‘away from home’, have been notably understudied. This special issue goes beyond the study of migration aspirations as a question of migration only. It focuses on the specific contexts (in five different countries) within which migration dreams are born, and sometimes even cultivated. It explores the sociocultural embedding of these aspirations by investigating the interpretation of local realities versus global possibilities, and examines how the aspirations of so many worldwide link up to the wider interconnections between globalisation and the sociocultural, political and economic transformations ‘back home’.     

Inference in Targeted Group‐Sequential Covariate‐Adjusted Randomized Clinical Trials

This article is devoted to the construction and asymptotic study of adaptive, group‐sequential, covariate‐adjusted randomized clinical trials analysed through the prism of the semiparametric methodology of targeted maximum likelihood estimation. We show how to build, as the data accrue group‐sequentially, a sampling design that targets a user‐supplied optimal covariate‐adjusted design. We also show how to carry out sound statistical inference based on such an adaptive sampling scheme (therefore extending some results known in the independent and identically distributed setting only so far), and how group‐sequential testing applies on top of it. The procedure is robust (i.e. consistent even if the working model is mis‐specified). A simulation study confirms the theoretical results and validates the conjecture that the procedure may also be efficient.     

以城镇基本公共服务均等化促进农业转移人口市民化

新型城镇化的核心是人的城镇化,人的城镇化主要是解决进城的农业转移人口能否顺利转变为城镇居民的问题,而实现这种转变的关键是能否享受均等化的基本公共服务。城镇基本公共服务不均等既表现在城镇社会的不同群体间,也表现在区域间。两者都会影响到农业转移人口的市民化过程。本文首先界定了城镇基本公共服务的内涵,并对其在群体间和区域间不均等的表现进行了考察,进而深入分析了不平等产生的原因,在此基础上提出了城镇基本公共服务均等化的实现路径。     

千城一面——造城时代下的物竞天择

随着对城镇化质量的日益关注,媒体与学界对千城一面的批判愈演愈烈。然而,如果将城市看做是地球生态系统的一部分,遵循生物界优胜劣汰、适者生存的丛林法则,那么千城一面现象便是时代背景下环境选择的结果——特定的科技、经济、文化发展水平等客观属性,把在生存竞争中处于劣势的建筑形制与空间范式逐一淘汰,筛选出最符合时代需求与发展方向的特征传承下去。在理解千城一面的时代必然性的基础上,理性认识古典主义与现代主义、空间舒适性与独特性、空间使用者的主与客之间的辩证关系,才能走出"为批判而批判"的误区。     

我国近代社会转型路径的反思——以宪政和民主联结为视角

时下,宪政民主再次成为学界热议的焦点。民主从本意上讲就是人民的统治,宪政的本质是对权力进行限制,两者并非天然地结合在一起。英国通过对中世纪传承下来的宪政传统的创造性转化,使之与人民主权论相结合,实现了宪政和民主的联结,也构建了有秩序的现代政治文明;而中国近世,在理性主义的引导下,移植西方政治制度时无视英美宪政民主,推崇法国模式和纯粹的民主政治,结果将社会转型引向歧途。因此,在社会转型的今天,要警惕理性主义,一方面,我们应该认识到宪政和民主的联结是英国＂自发演进＂的结果;另一方面,由于在无＂文化亲缘性＂的国度进行制度移植具有失败的必然性,我们应重新审视我们的传统,从中发展出与宪政民主功能相同的制度。     

Quantile regression and variable selection for the single-index model

In this paper, we propose a new full iteration estimation method for quantile regression (QR) of the single-index model (SIM). The asymptotic properties of the proposed estimator are derived. Furthermore, we propose a variable selection procedure for the QR of SIM by combining the estimation method with the adaptive LASSO penalized method to get sparse estimation of the index parameter. The oracle properties of the variable selection method are established. Simulations with various non-normal errors are conducted to demonstrate the finite sample performance of the estimation method and the variable selection procedure. Furthermore, we illustrate the proposed method by analyzing a real data set.