论住房保障制度体系

住房保障就是通过市场、社会、互助、家庭等各种方式满足社会成员的住房需求,保障社会成员的住房权利。基于这一认识,住房保障制度体系由住房社会保障制度、住房自力保障制度、住房互助保障制度、住房家庭保障制度和住房其他保障制度共同构成。不同的构成部分,其制度目的、实施手段和实施内容都有不同。     

中国高校知识产权教育落后的原因及对策

在21世纪的知识经济时代,知识产权成为国与国之间核心竞争力的重要体现,世界各国均非常重视知识产权教育.目前,我国高校的知识产权教育水平还比较落后,定位仍存在一定的误区,教学针对性不强,师资力量严重匮乏.为此,应在转变教育理念,改革教学内容体系,加强师资队伍建设等方面对在校大学生进行知识产权教育.     

Impacts of agricultural to urban land-use change on floristic quality assessment indicators in Northeastern Illinois wetlands

Northeastern Illinois is under heavy urban sprawl pressure leading to changes in land-use and negative impacts on existing wetlands directly adjacent to these new developments. Determining the impact of land-use changes on wetlands is important as it can have management and preservation implications within this region. One tool to evaluate these changes is the Floristic Quality Assessment (FQA), a method based on plant species composition at a site and the individual species habitat affinity and disturbance tolerance. The objectives of this study were to: 1) determine how wetland size, impervious surface, and distance from development influence FQA indicators and 2) determine if period (before/after development) and buffer size affect FQA indicators. Fourteen wetlands located in Northeastern Illinois were surveyed during 2004 through 2006 (prior development) and revisited in 2008 (post development). Positive correlations between wetland size and FQA indicators and between impervious surface and percent native species were found. In addition, species richness increased after development occurred and wetlands with larger buffers had higher percentages of native species. This study has demonstrated that larger wetlands are more diverse and land-use changes may not decrease wetland plant diversity in the short term in an urban setting.     

The Production of Erotica: Photobooks of Teenage Models in Hong Kong

This article examines the production of erotica in a Chinese cultural context. It takes the photo books featuring teenage models published in Hong Kong in 2010 as case studies in which a total of 2,205 photographs of teenage models were analyzed. In-depth interviews were conducted with six producers of these images. It was found that the set of erotic pictures was characterized by three distinctive features. First, they emphasized a look of innocence that suggested purity, fragility, and delicacy. Second, albeit being sexy and desirable, the girls were often presented as if they were unaware of their sexiness. The implication was that their sexiness was unintentional and, thus, the girls were not to blame. Finally, a sense of intimacy was purposefully built between the models and readers by constituting a direct gaze and presenting models as ordinary “girls next door.” All these echoed the emphasis of female chastity in Chinese culture. It appears that in Hong Kong, where sexuality issues often provoke debates, the producers of sexy images have benefited from media controversies. By heightening expectations of potential customers, they fuel the “erotic” imagination of the readers. The production of erotica is, hence, completed through a collaboration between teenage models, producers, marketers, and consumers.     

基于事先信任和后续信任的顾客忠诚形成机理研究

顾客满意是顾客忠诚的必要非充分条件。根据承诺-信任理论,顾客从满意到忠诚是一个复杂的心理认知过程,需要中间因素的催化,并认为它们之间有信任和承诺的催化作用。为此,本文在借鉴前人研究成果的基础上,将顾客信任划分为事先信任和后续信任,以事先信任为源头,以顾客满意、后续信任和顾客承诺为中介变量,建立顾客忠诚的形成机理模型,并用寿险公司的调查数据进行了验证分析。我们发现事先信任是一个重要的影响因素,它对顾客满意有着显著的正向影响,通过后续信任和承诺间接影响顾客忠诚度等。     

Note on inventory models with Weibull distribution deterioration

This article explores the inventory model with a general demand rate function in which both the Weibull distributed deterioration and partial backlogging are considered. The inventory model discussed here is based on the important finding by Wu [Wu, K.S., 2001. An EOQ inventory model for items with Weibull distribution deterioration, ramp type demand rate and partial backlogging. Production Planning and Control, 12, 787–793]. There are four parts in our research. First, we derive the analytical framework of the inventory model for a general demand rate function1 1.?Based on detailed suggestions of Professor Wafik H. Iskander, Email: whiskander@mail.wvu.edu . Second, for the ramp type demand, we improve Wu's model to find the criterion to guarantee the existence and uniqueness of the optimal solution. Third, we develop a new model to compensate for the missing case in Wu's article. Fourth, we combine our results to show that our findings are applicable to the ramp type demand inventory model, so that the optimal solution is independent of the demand function. Finally, some numerical examples and graphs are provided to illustrate our discovery and demonstrate the application of our analytical framework.     

健康舒适视角下城市地下空间规划设计思路初探

随着城市人口的增长,地面空间不足的问题日益突出,而地下空间开发可有效解决该问题.长期以来,我国地下空间规划设计大多从集约利用空间、节约资源能源、保护生态环境等角度出发,对地下空间使用者的健康舒适这一视角关注较少.在解析健康、舒适与地下空间概念的基础上,基于环境心理学中的Vischer舒适理论,构建地下空间健康舒适构成要素的关系框架,并在总结国内外相关研究和地下空间主要特征的基础上,从通风系统、视觉舒适、安全感、声舒适四个方面提出了健康舒适视角下地下空间规划设计思路,从健康与舒适的视角丰富了国内城市地下空间规划设计的相关理论.     

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...     

Novel distribution-free model and method for stochastic disassembly line balancing with limited distributional information

Journal of Combinatorial Optimization - Recycling of end-of-life (EOL) products has drawn much attention from both researchers and practitioners over the recent decades due to the environmental...     

MINIMUM WAGES,IMPORT STATUS,AND FIRMS' INNOVATION: THEORY AND EVIDENCE FROM CHINA

This study explores the heterogeneous effects of minimum wage on innovation of different types of firms. We develop an open‐economy R&D‐based growth model and obtain the following result: raising the minimum wage reduces innovation of firms that use domestic inputs but increases innovation of firms that import foreign inputs. We test this result using city‐level data on minimum wages and firm‐level patent data in China. In accordance with our theory, we find that raising the minimum wage is associated with more innovation by importing firms and less by non‐importing firms. This result survives a battery of robustness checks. (JEL E24, F43, O31)