提升城市公共服务质量打造服务型政府——2010连氏中国城市公共服务质量调查

以“服务型政府”的基本价值为导向,充分结合中国国情,运用科学的标准、方法和程序,初步构建了涵盖公共服务所有重要维度的“连氏基金中国城市公共服务质量评价体系”,利用这个体系对中国32个主要城市的公共服务进行了评估与分析。     

成语广告的修辞学诠释

提出了成语广告的新内涵;全面系统地归纳了成语广告有三大类七小类表现形式;指出并简要分析了成语广告运用了九种修辞格;从修辞心理的角度分析了成语广告吸引公众眼球、凸显广告意图的深层原因;指出并剖析了谐音成语广告的修辞影响。     

王夫之对张载“礼之本”论的承继与新释

张载和王夫之皆基于时代需要,在其“礼之本”论中内嵌天人合一结构。王夫之在承继张载思想的基础上,提出礼之所以具有自运而运天下的特性,就在于道为礼之本。二者所言之道皆分天道和人道。就天道而言,张载释《礼记》中“礼必本于大一”为太虚即礼之大一,王夫之释礼之大一为理无不涵、富有万殊而极乎纯者。就人道而言,二者皆由天与性的关系,主张礼本于天与礼出于人心是相贯通的,但张载言性是合两结构,以礼可持天地之性,王夫之则言一本然之性,礼通天道之理以治人情。     

基于一种短线投资模式的A股市场实证研究

中国的A股上市公司在分红和复合增长方面存在不足,股价波动剧烈,A股市场上短线投资策略相对于长线价值投资策略更加流行。中国关于A股市场投资策略更多的是研究上市公司的基本面,如营运能力、盈利能力等,进而分析其投资价值,而关于短线投资策略的研究很少。立足短线投资策略,采用概率和统计检验以及多元线性回归的方法,利用A股市场2012年2月24日之前的64个交易日里498只(次)涨停股票的数据,证明涨停之后短期内股价具有上涨的惯性,且涨幅与量比、换手率和大盘涨幅的回归关系显著。     

四川盆地西南部茅口期岩相古地理

根据野外露头、钻井、测井等资料, 对四川盆地西南部茅口组的岩性特征及岩相古地理进行了分析。结果表明,四川盆地西南部地区茅口组为台内浅滩和开阔海微相环境,并可划分出3 个沉积旋回,代表了茅口期的3 次海平面升降变化。其中第二沉积旋回海平面下降阶段为最重要的成滩期,这一时期浅滩广泛发育亮晶生屑灰岩,局部高地发育白云岩,经后期东吴运动改造,有望成为具有良好的储集物性特征的储集层。     

吐哈盆地北部红旗坎地区侏罗系构造特征研究

红旗坎地区整体为由北向南的双重逆冲推覆叠瓦构造特征,区内断裂发育。受NW—SE 向挤压应力作用,侏罗系主要发育SW—NE 向主控断裂和与之垂直或斜交的NW—SE 向或近南北向次级断裂。主控断裂由北向南逐次逆冲叠置,形成特有的前展式叠瓦状断裂组合样式和平面彼此平行呈“川”字型展布的断裂分布特征。红旗坎构造带从西向东呈现出叠瓦逆冲—叠瓦堆垛—叠瓦逆冲三段有所差异的双重叠瓦逆冲构造特征,其叠瓦逆冲构造发育期主要为侏罗纪末期,白垩纪末期逆冲推覆构造运动对红旗坎双重逆冲叠瓦构造的发育具有重要的作用,后经喜马拉雅期大角度逆冲推覆运动改造而定型。     

Single-machine batch delivery scheduling with an assignable common due window

This paper addresses a batch delivery single-machine scheduling problem in which jobs have an assignable common due window. Each job will incur an early (tardy) penalty if it is early (tardy) with respect to the common due window under a given schedule. There is no capacity limit on each delivery batch, and the cost per batch delivery is fixed and independent of the number of jobs in the batch. The objective is to find the optimal size and location of the window, the optimal dispatch date for each job, as well as an optimal job sequence to minimize a cost function based on earliness, tardiness, holding time, window location, window size, and batch delivery. We show that the problem can be optimally solved in O(n⁸)$O(n^8)$ time by a dynamic programming algorithm under a reasonable assumption on the relationships among the cost parameters. A computational experiment is also conducted to evaluate the performance of the proposed algorithm. We also show that some special cases of the problem can be optimally solved by lower order algorithms.     

稳健性对公司信息披露行为的影响研究——基于会计信息透明度的视角

本文以我国上市公司会计信息透明度为切入点,探讨稳健性对公司信息披露行为的影响.初步检验表明,稳健性和会计信息透明度之间呈倒U型关系,即在适度范围内,稳健性的增强有助于提升会计信息透明度,而由极端向下盈余管理引起的“过度稳健”则导致会计信息透明度下降.进一步检验发现,在剔除了盈余管理的影响后,稳健性的增强有助于提高会计信息透明度.这些结果表明,在不受盈余管理动机干扰情况下,稳健性的增强有助于缓解信息不对称水平.但是,如果企业假借稳健之名而实施极端向下的盈余管理反而会加重信息不对称程度.因此,应在大力倡导公司实施适度稳健会计的同时,需谨防公司假借稳健会计之名实行极端向下的盈余管理,会计稳健性的运用应保持一个合理的度.     

Some results on the target set selection problem

In this paper we consider a fundamental problem in the area of viral marketing, called Target Set Selection problem. We study the problem when the underlying graph is a block-cactus graph, a chordal graph or a Hamming graph. We show that if G is a block-cactus graph, then the Target Set Selection problem can be solved in linear time, which generalizes Chen’s result (Discrete Math. 23:1400–1415, 2009) for trees, and the time complexity is much better than the algorithm in Ben-Zwi et al. (Discrete Optim., 2010) (for bounded treewidth graphs) when restricted to block-cactus graphs. We show that if the underlying graph G is a chordal graph with thresholds θ(v)≤2 for each vertex v in G, then the problem can be solved in linear time. For a Hamming graph G having thresholds θ(v)=2 for each vertex v of G, we precisely determine an optimal target set S for (G,θ). These results partially answer an open problem raised by Dreyer and Roberts (Discrete Appl. Math. 157:1615–1627, 2009).     

A bi-objective decision model and method for the integrated optimization of bus line planning and lane reservation

Journal of Combinatorial Optimization - The increasingly serious traffic congestion makes the bus system more and more inefficient. It is recognized all over the world that designing an attractive...