社会主义核心价值体系对高校统一战线工作的功能

社会主义核心价值体系是党的统一战线理论的指导思想,在意识形态、社会文化和价值观念方面全面引导高校统一战线工作深入开展;社会主义共同理想和以爱国主义为核心的民族精神是团结广大统战对象、凝聚民主党派才智的粘合剂;以改革创新为核心的时代精神是高校统一战线工作的创新动力和源泉;社会主义荣辱观则对高校统一战线工作主体和客体都具有明确的规范功能.社会主义核心价值体系内在本质属性决定了其对高校统一战线工作具有引导、规范、凝聚和创新功能.     

略论西藏城市的历史发展及其地位

西藏城市虽然形成较晚,经历了原始聚落、堡寨、城市雏形、城市形成等漫长的过程,但是在西藏发展的历史过程中却有着重要的地位和作用。西藏城市成为区域政治、军事中心,推动西藏社会的发展变迁;西藏城市具有重要的聚集和辐射功能,对区域经济发展起着带动作用;西藏城市是重要的宗教文化载体,受宗教影响巨大,宗教文化功能突出。自元代以来,西藏城市还充分发挥着维护国家统一,促进民族融合,巩固边疆的作用。     

Non-oriented slack-based decompositions of profit change with an application to Taiwanese banking

A change in profit can originate from the output side and the input side. In the spirit of work by Tone [1] and follows Grifell-Tatjé and Lovell's [2], we propose a non-oriented slacks-based measure (SBM) model to decompose the change in the operating profit into various meaningful components: quantity effect and a price effect. The quantity effect can be decomposed into a productivity effect and an activity effect. The productivity effect is further decomposed into a technical effect and an operating efficiency effect. Both of them include an output side, which will result in a change in revenue and an input side which will result in a change in cost. The activity effect can be decomposed into a product mix effect, a resource mix effect and a scale effect. We illustrate our decompositions to the Taiwanese banking sector during the period 1994-2002 using the average of the base and current prices to evaluate these contributions. We find ignoring input side effects on the decomposition of profit changes would cause misleading results in managerial issues.     

A combinatorial proof of the cyclic sieving phenomenon for faces of Coxeterhedra

For a Coxeter system (W,S), the subgroup W _J generated by a subset J?S is called a parabolic subgroup of W. The Coxeterhedron PW associated to (W,S) is the finite poset of all cosets {wW _J } _w∈W,J?S of all parabolic subgroups of W, ordered by inclusion. This poset can be realized by the face lattice of a simple polytope, constructed as the convex hull of the orbit of a generic point in ? ⁿ under an action of the reflection group W. In this paper, for the groups W=A _n?1, B _n and D _n in a case-by-case manner, we present an elementary proof of the cyclic sieving phenomenon for faces of various dimensions of PW under the action of a cyclic group generated by a Coxeter element. This result provides a geometric, enumerative and combinatorial approach to re-prove a theorem in Reiner et al. (J. Comb. Theory, Ser. A 108:17–50, 2004). The original proof is proved by an algebraic method that involves representation theory and Springer’s theorem on regular elements.     

网络时代物权法的价值维度

物权法的基本价值目标之一是交易安全,但物权法保护交易安全的同时应有利于意思自治原则的发挥。传统物权法过分追求交易安全,强调限制意思自治,违背物权法作为私法的根本属性。在网络时代的大背景下,物权法的价值主要体现为效率价值、自由价值、安全价值。网络时代物权法价值应该以自由和效率为基本价值理念,在此基础上实现物权法定主义立法模式向意思主义并注重效率的立法模式转变。意思自治应是网络时代物权法的基本价值取向。物权法应以意思自由为基础,更加注重效率和安全,从而构建安全高效的物权法价值体系。     

Precise large deviations of aggregate claims in a risk model with size dependence and non stationary arrivals

Consider a risk model with claims of heavy tails for non stationary arrival processes that satisfy a large-deviation principle. Assume that the claim sizes and interarrival times form a sequence of random pairs, with each pair obeying a dependence structure via the conditional distribution of the interarrival time given the subsequent claim size being large, and then a precise large-deviation formula of the aggregate amount of claims is obtained.     

“Under the Same Quilt”: The Paradoxes of Sex Between Men in the Cultural Revolution

This article describes the paradoxes experienced by homosexual men during the Chinese Cultural Revolution. Interviews with 31 elderly Chinese gay men were carried out in four cities in China in 2011. Although homosexual men were terribly persecuted, chaotic situations and dislocations of youth from their families provided young homosexual men with a remarkable degree of personal freedom and the opportunity to explore same-sex relations. Analysis of this seemingly contradictory conflation of persecution and freedom will allow us to explore the conditions and effects of the coming of age of homosexual men in a unique epoch in Chinese history.     

盐水泥浆中碳钢的腐蚀疲劳断裂

钻井液中钻具因受到各种作用应力,加上井下高温高压的腐蚀环境,使其易发生腐蚀疲劳断裂。为探讨钻具的断裂过程以期能找到有效的防护措施,实验室内建立了模拟试验装置。针对盐水泥浆中45钢的腐蚀疲劳断裂行为,通过自制的旋转弯曲腐蚀疲劳试验机,模拟钻具的运转受力情况,研究了不同泥浆介质、应力、载荷频率和温度对45钢腐蚀疲劳断裂行为的影响,并结合动态腐蚀试验和断口分析,讨论了各影响因素的作用。结果表明,盐水泥浆的pH值、Cl-含量等对45钢的疲劳寿命有直接影响,腐蚀疲劳寿命与与局部腐蚀的程度大小有密切关系;随着加载频率的增大,45钢的腐蚀疲劳寿命有较大提高;在15~80℃温度范围内,45℃左右时45钢的腐蚀疲劳寿命最短。     

The Four Seasons·Winter

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分数阶反向累加GM(1,1)模型及其性质

针对正向序列累加GM(1,1)模型都不满足新信息优先原理的问题,文章从理论上证明了一阶反向累加GM(1,1)模型不能较好地满足新信息优先原理.针对一阶反向累加GM(1,1)模型的不足(只适用于递减序列,没有利用最新消息),提出了分数阶反向累加GM(1,1)模型,将反向序列累加的适用范围扩展到递增序列,充分挖掘了新信息.实例说明分数阶反向累加GM(1,1)模型具有较强的预测能力.