Housing affordability among elderly female heads of household in nonmetropolitan areas

This study investigates the extent and nature of housing affordability for elderly nonmetropolitan female heads of household using data from the Panel Study of Income Dynamics. The results indicate that over one-third of elderly nonmetropolitan female heads of household experience housing poverty and that those who rent, who have fair to poor health, and who are minorities are particularly vulnerable. Housing affordability, measured by the concept of housing poverty, identifies households struggling to meet basic needs while the conventional 25% of income for housing expenditures ratio identifies a larger population. The findings suggest the need for multifaceted public policies to address the problem of housing poverty. Her research interests include housing affordability, housing and community vitality, and decision making. She received her Ph.D. from Purdue University. Sooyoun Park is in the same department as a Project Assistant on a USDA-funded research project entitled “Housing Affordability in Rural Areas,” which is a joint project between Nebraska and Wisconsin. Her research interests focus on housing management behavior in relation to housing expenditure burden. She received her Ph.D. from the University of Nebraska-Lincoln.     

Sampling Strategies for Toxic Air Contaminants

Annual concentrations of toxic air contaminants are of primary concern from the perspective of chronic human exposure assessment and risk analysis. Despite recent advances in air quality monitoring technology, resource and technical constraints often impose limitations on the availability of a sufficient number of ambient concentration measurements for performing environmental risk analysis. Therefore, sample size limitations, representativeness of data, and uncertainties in the estimated annual mean concentration must be examined before performing quantitative risk analysis. In this paper, we discuss several factors that need to be considered in designing field-sampling programs for toxic air contaminants and in verifying compliance with environmental regulations. Specifically, we examine the behavior of SO2, TSP, and CO data as surrogates for toxic air contaminants and as examples of point source, area source, and line source-dominated pollutants, respectively, from the standpoint of sampling design. We demonstrate the use of bootstrap resampling method and normal theory in estimating the annual mean concentration and its 95% confidence bounds from limited sampling data, and illustrate the application of operating characteristic (OC) curves to determine optimum sample size and other sampling strategies. We also outline a statistical procedure, based on a one-sided t-test, that utilizes the sampled concentration data for evaluating whether a sampling site is compliance with relevant ambient guideline concentrations for toxic air contaminants.     

具有中国特色的执政党建设理论的创立——兼谈改革开放30年党的建设的经验

改革开放的每一重大战略部署和伟大实践，都包含着党的建设的新举措和党的建设理论的新探索。党的建设的实践和理论的每一创新发展，也反过来推进和保证了中国特色社会主义经济、政治、文化、社会建设和各个领域的改革。中国共产党对历史方位转变和执政党建设理论的认识，已经达到了新的高度，提出要“深化对共产党执政规律的认识”这一命题，本身就是中国共产党在30年党的建设理论创新过程中，获得的一个重要成果。我们研究具有中国特色的马克思主义执政党建设理论。从根本上说，就是要认识执政规律，尊重执政规律，努力按照执政规律加强执政党建设，加强和改善党对中国特色社会主义事业的领导，完成党肩负的伟大历史使命。     

宗族与风俗:明代中后期社会变迁的缩影——以浙江余姚江南徐氏为例

明嘉靖万历时浙江绍兴府余姚地区的社会风俗变化很大,并深刻影响到生活方式以及人们的观念。嘉靖时徐天泽将风俗的变化归结为人们的"物欲",在讲求"义"的伦理政治下,"物欲"表现出的"利"对于社会的冲击无疑是巨大的。人们不再安分守己,以满足欲望为追求。余姚江南徐氏在明代由于科举人才辈出,引人注目。地方志从批判的角度记载风俗奢靡,编纂者号召人们移风易俗,反映了地方官的意志以及地方绅士的主张。最值得注意的是,士大夫通过宗族建设来移风易俗,维护社会秩序,造成宗族乡约化,进而组织化。     

社会认知经典研究述评

社会认知是指个人对他人或自己的心理与行为的感知与判断的过程。从 1 93 0年代开始 ,社会心理学家就已经对此问题开展研究。 1 947年 ,J.S .Bruner在以往研究基础上 ,提出了社会知觉概念 ,并且进行了相关实验 ,开启了现当代社会认知研究的大门。 1 970年代后 ,社会认知研究开始广泛借鉴认知心理学的理论和方法 ,尤其受到信息加工理论的深刻影响 ,开展了大量的实证研究。文章在把握社会认知研究的历史脉络基础上 ,评述几个在社会认知研究发展史中占有重要地位的经典研究。     

党的先进性内容论析

党的先进性内容包括阶级基础的先进性与群众基础的广泛性、理论的科学性与纲领的正确性、组织的有效性与作风的务实性、历史前进的导向性与社会影响的积极性等。它不仅是对党的先进性进行研究的前提和基础，而且也是研究中国特色社会主义理论体系的一项重要内容。     

畜产品质量安全监管研究综述

随着经济的发展和社会的进步，畜产品在人们的日常生活中占有越来越重要的地位，目前我国对畜产品质量安全的监管还很不到位。文章总结了我国畜产品安全监管的现状，并介绍了国外畜产品安全监管的现状，通过比较找出我国监管的不足，从而进一步加强我国对畜产品质量安全的监管。     

基于人文关怀的高校贫困学生资助策略思考

在我国高等教育迅速发展的过程中,高校家庭经济困难的学生数量也在大幅增加,贫困生现象日益凸显。本文通过分析高校贫困生的状况及需求,并试图从人文关怀的层面探讨当前如何更好地推进高校贫困生工作。     

失业者再就业行为差异分析

笔者通过对东北老工业城市--长春市失业人员进行实地调查,运用均值分析、因子分析等方法,对失业者再就业行为的差异进行辨别,发现对有再就业意愿的失业者而言,搜寻工作的思想观念与方式、失业期间的活动能力、失业者的心态、当地公共就业服务质量都是导致失业者再就业行为产生差异的主要因素.由此笔者分析了影响失业者再就业行为的内在机制,探讨激励失业者积极再就业的措施,以期为完善我国公共就业服务体系提供政策建议.     

构建基于4C模式高校新型师生关系的探讨

随着教育改革的不断深入,建立与时代相适应的新型师生关系非常有必要.建立新型的师生关系,是构建和谐校园的坚实基础,是全面提高教育质量,实现高校可持续发展的重要条件.文章在分析师生关系现状的基础上,研究构建新型师生关系的动因,对如何构建基于4C模式的新型师生关系进行了探讨.