Pricing decisions in a multi-criteria setting for product recovery facilities

Unpredictability in the arrival time and quantity of discarded products at product recovery facilities (PRFs) and varying demand for recovered components contribute to the volatility in their inventory levels. Achieving profit under such capricious inventory levels and stringent environmental legislations remains a challenge to many PRFs. This paper presents a multi-criteria decision model to determine a pricing policy that can simultaneously address two issues: stabilize inventory fluctuations and boost profits. The model considers that PRFs passively accepts discarded products as well as acquires them proactively if necessary. Under a multi-criteria setting, the current work determines prices of reusable and recyclable components to maximize revenue and minimize product recovery costs. A genetic algorithm is employed to solve the multi-criteria decision making problem. Sensitivity analysis is performed to investigate the effect of sorting yield, disassembly yield, and reusable component yield on the profits, prices, inventory levels, and disposal quantities.     

发展的西方话语说 ———兼序《遭遇发展》中译本

当世界每个角落的人们都在追赶发展时,阿图罗.埃斯科瓦尔教授1995年出版了影响深远的著名作品《遭遇发展》。他在书中指出,＂发展＂并不是解决全球问题的常识性手段,发展是被发明出来的,它是一项历史和文化特异的计划。在世界发展研究中,关于发展的定义,可以概括为三类：＂社会转型说＂、＂干预行动说＂和＂西方话语说＂。《遭遇发展》正是对发展的西方话语说的最好诠释。通过对世界范围发展的话语批判,埃斯科瓦尔教授构想了后发展时代,他提倡多元模型与混杂模型的共存。所有这些思想对中国当今的发展现实和发展研究都有着重要的参考价值。而对于发展的思考最终还需要回归到人的本质和人的概念,以及如何做人的实践与生活方式。     

关于廉洁文化建设指导思想、目标要求的思考

社会主义廉洁文化建设,必须坚持以马列主义、毛泽东思想和中国特色社会主义理论体系为指导。坚持这一指导思想,必须把握好以下三个方面:一是坚持以社会主义荣辱观为主线,二是遵循社会主义文化建设的发展规律,三是注重体现时代性,把握规律性,富于创造性。社会主义廉洁文化建设,其总体目标表现在两个方面:一是社会成员个体的思想道德素质得到提高,廉洁自律意识得到增强;二是社会整体形成"以廉为荣,以贪为耻"的廉洁文化氛围。     

Improving the measurement of child welfare in the context of intra-household inequality

This study aims to illustrate how to improve the evaluation of child economic well-being and child poverty using the collective approach. International organisations such as the World Bank, OECD and UNICEF have made important efforts in recent years to produce reliable data and to measure poverty according to the most relevant items of household consumption baskets. However, when measuring poverty, it is common practice to assume either that resources are distributed equally within the household or that there are fixed equivalence scales (for example, a child can be counted as 0.5 adults). The methodology based on collective models of consumption overcomes this rigidity by allowing inequality within each household to be taken into account. The method assumes that each household devotes a fraction of resources to children, which can be estimated using the observed expenditure on child-exclusive goods. An example of how child poverty measures can be inaccurately estimated is illustrated through the case of young children in Albania.     

Foster care reunification: An exploration of non-linear hierarchical modeling

Hierarchical or multilevel models are based on the same fundamental concepts that apply to simple linear models. The linear forms of these models can be interpreted with relative ease as parameter estimates do not differ in magnitude or interpretation from standard non-hierarchical models. Non-linear hierarchical models, however, are more complex as the introduction of a random intercept means that parameter estimates must be interpreted as “subject-specific” rather than “population-averaged”. Depending on the specifics of the data being modeled, these parameters may be very different in magnitude. In this article we provide two examples of non-linear hierarchical modeling using administrative child welfare data. For each example, we estimate the odds of reunification for a cohort of children in California using both standard logistic regression models and random intercept models.     

农村信息服务模式创新在苏南区域发展中的地位与作用

在实地调研的基础上,结合苏南地区城乡统筹发展、区域经济发展和农村信息服务发展现状,提出了苏南农村信息需求已然从基本需求向更高层次需求转型,农村信息服务模式创新发展、服务农业现代化是苏南地区现阶段的必然选择,虽然当前苏南地区提升农村信息服务水平还存在着农耕土地少、信息化成本高、农民素质相对较低以及信息化意识薄弱等问题,但是苏南地区选择基于物联网的农业信息服务模式,率先推进农业现代化具有明显的优势,基于物联网的现代农业信息技术的应用和优先建设项目选择等是创新苏南农村信息服务模式的具体对策。     

创新视野下的“卓越工程师教育培养计划”

为提高工程教育人才培养质量,国家启动实施了"卓越工程师教育培养计划"。"卓越计划"从培养理念、培养模式、培养机制和培养制度等方面对工程教育人才培养进行了全面的创新。"卓越计划"的实施不仅对提高整个工程教育人才培养质量有重要意义,对推动整个高等教育人才培养模式改革、提高高等教育整体质量也有着十分重要的意义。     

基于目的原则的称呼语转换分析——以曾思懿的称呼语转换为例

称呼语是语言系统的重要组成部分。称呼语转换是受目的驱使的重要言语行为,是言者实现其预期交际目的的手段,也是言者有意拉大或缩小双方心理距离、社会距离等目的的表现。本文以《北京人》剧中曾思懿的称呼语转换为例,运用目的原则等语用学理论来探讨称呼语转换策略对处于目的一致关系和目的冲突关系中的言谈者实现其交际目的的重要性。     

中职教师专业化发展的目标取向及推进策略

立足我国中职教育的发展现状,指出中职教师岗位具有教育对象特殊化、所处环境复杂化、工作内容多元化、社会角色综合化等四个特征。从知识结构、职业态度、素质提升等三个角度,分析了目前中职教师专业化发展所存在的主要问题。在此基础上,提出中职教师专业化发展在教育观念、职业道德、业务知识、教学能力和身心素质等五个方面的目标取向。同时,从社会、政府、学校及教师等视角,探讨了中职教师专业化发展的推进策略。     

基层公务员目标导向对工作绩效的影响机制研究

基层公务员的学习导向对工作绩效有显著正向影响;基层公务员表现导向越强或领导权威越低,学习导向对工作绩效的正向影响越强;高学习导向或高工作经验情况下,表现导向对工作绩效呈显著正向影响。