农村留守儿童教育问题的回顾与反思

20世纪80年代以来,伴随着中国城市化进程的加快,越来越多的农村剩余劳动力流入城市,由此产生的农村留守儿童教育公平问题已成为中国社会转型期一个独特的社会问题,引起了广泛关注和重视。但从现实和政策评估的角度看,留守儿童在卫生保健、安全、学习、品行、心理等方面的问题依然存在,并影响他们公平接受教育。留守儿童的教育问题长期得不到解决表明,留守儿童教育问题的解决是一个长期、复杂、系统的工程。家庭、学校、政府、社会都对留守儿童问题有了一定程度的认识,但父母与子女分离导致的教育缺失问题、学校存在的管理失控与教育失误问题等值得进一步的反思与探讨。     

我国企业环境会计信息披露问题研究

阐述了企业环境会计信息披露的必要性,揭示并分析了我国企业环境会计信息披露存在的问题,并提出了加强企业环境会计信息披露的对策。     

Target-guided algorithms for the container pre-marshalling problem

The container pre-marshalling problem (CPMP) aims to rearrange containers in a bay with the least movement effort; thus, in the final layout, containers are piled according to a predetermined order. Previous researchers, without exception, assumed that all the stacks in a bay are functionally identical. Such a classical problem setting is reexamined in this paper. Moreover, a new problem, the CPMP with a dummy stack (CPMPDS) is proposed. At terminals with transfer lanes, a bay includes a row of ordinary stacks and a dummy stack. The dummy stack is actually the bay space that is reserved for trucks. Therefore, containers can be shipped out from the bay. During the pre-marshalling process, the dummy stack temporarily stores containers as an ordinary stack. However, the dummy stack must be emptied at the end of pre-marshalling. In this paper, target-guided algorithms are proposed to handle both the classical CPMP and new CPMPDS. All the proposed algorithms guarantee termination. Experimental results in terms of the CPMP show that the proposed algorithms surpass the state-of-the-art algorithm.     

Managing stochastic demand in an Inventory Routing Problem with transportation procurement

We study an Inventory Routing Problem in which the supplier has a limited production capacity and the stochastic demand of the retailers is satisfied with procurement of transportation services. The aim is to minimize the total expected cost over a planning horizon, given by the sum of the inventory cost at the supplier, the inventory cost at the retailers, the penalty cost for stock-out at the retailers and the transportation cost. First, we show that a policy based just on the average demand can have a total expected cost infinitely worse than the one obtained by taking into account the overall probability distribution of the demand in the decision process. Therefore, we introduce a stochastic dynamic programming formulation of the problem that allows us to find an optimal policy in small size instances. Finally, we design and implement a matheuristic approach, integrating a rollout algorithm and an optimal solution of mixed-integer linear programming models, which is able to solve realistic size problem instances. Computational results allow us to provide managerial insights concerning the management of stochastic demand.     

利用网络热点事件引导大学生养成良好社会心态

随着网络和网络媒体的发展,当代大学生对社会热点事件的关注度和参与度与日俱增。网络热点事件反映的社会现象和折射的社会问题对即将步入社会的大学生来说具有重要的引导作用,对其社会心态的形成具有重要的影响。高校思想政治工作应引导大学生正确运用网络技术,提高信息分析能力;正确看待社会转型期的各种问题;不断推进思想政治教育现代化发展。同时,国家应积极引导网络媒体,净化网络舆论空间,为大学生成长提供健康的网络环境。     

重释文学语形批评的效度与限度

对文学语言的形式化思考,是西方文论发生现代转换的内在动因。从形式语义的直观、自足维度来切入和界说文学审美性的研究途径,亦构成了文学语形批评的范式效度与限度。一方面,它带来了新的分析客体与规范,拓展了文学理论研究的视域框架,深化了人们对于文学构成的审美认知;另一方面,它又陷于传统的文学还原论窠臼,无力涵括文学与"语言外"事物之间的复杂关联,从而难以对文本生成的运作机制及意识形态效果作出有效的阐释。     

生态设计艺术研究的风向标——读刘文良《后现代语境下的生态设计艺术》

刘文良教授《后现代语境下的生态设计艺术》一书,聚焦于当前生态设计面临的诸多困惑,问题意识与对策探求有机统一,宏观把握与微观研究相得益彰,学术性与可读性完美契合,为其健康发展献上了系列应对之策,堪为当前生态设计艺术研究之“风向标”。     

我国社会监督存在的问题及其原因分析

社会监督是权力监督制约机制中不可或缺的重要组成部分,是我国反腐倡廉、防止权力滥用的可靠保证.改革开放以来我国社会监督得到了巨大的发展,但其力度和深度不够,存在社会监督主动性弱,政府行为透明度低,监督机制不完善等问题.中国传统的"家天下"的国家观和权力观是造成这种现状的历史和文化原因,对社会监督存在认识误区,政治体制存在的缺陷与不足则是现实原因.     

对我国个人所得税几个问题的探讨

个人所得税是指国家依法对个人(或个体工商户)应税所得额计算征纳的税金。个人所得税是我国税收第一难,曾经和正在为我国经济建设筹集大量的资金并调节贫富不均。个人所得税虽然近几年有较大力度的改革,但是随着我国经济社会的不断发展,个人所得税也应该继续进行改革。     

关于当前高校师资激励管理的思考

高等院校目前在师资激励管理方面还存在着很多的局限与弊端,不利于激发教师工作动机,释放教师创造潜能。为了提高高等院校面向市场、面向世界,积极生存与发展的能力,我们必须对师资激励管理的体系和手段进行改革与完善。