On extropy properties of ranked set sampling

Ranked set sampling is a sampling design that allows the experimenter to span the full range values in the population and it can be used widely in industrial, environmental and ecological studies. In this paper, we consider the information content of ranked set sampling in terms of extropy measure. It is shown that the ranked set sampling performs better than its simple random sample counterpart of the same size. Monotone properties and stochastic orders are investigated. Sharp bounds on the extropy of RSS data based on the projection method in the non-parametric set-up as well as Steffensen inequalities in the parametric context are established. The extropy measure can also be used as a discrimination tool between RSS and SRS data.     

对保护教育消费者权益的思考

本文对高校扩招、上调学费后 ,如何认识和保障教育消费者的权益作了探讨。提出了保护教育消费者权益关键要转变教育思想观念 ,核心是教育质量保障 ,出路在于进一步深化高等教育改革 ,并在实践中正确处理一些基本关系     

发展低碳经济促进重庆产业结构调整

实施低碳经济是中国经济实现可持续发展的重要途径。本文就实施低碳经济的内涵、优势及有利条件进行分析,提出重庆实施低碳经济的目标、基本思路以及应处理好的几大关系,最后提出实施低碳经济战略,促进重庆产业结构调整的几点建议,以推动重庆实施低碳经济有新突破,产业结构调整有质的提升。     

论新民主主义革命时期刘少奇对马克思主义大众化的探索

刘少奇认为,以工农为主体的人民群众是中国民主革命的主要力量,是党的力量的来源,中国革命要获得胜利,党不仅要从思想上、政治上、组织上和武装上“准备自己”,同时还必需以同样的方式去“准备群众”。加强党的宣传教育工作,以马克思主义教育人民,提高群众的觉悟程度;正确地认识和组织民众,提高民众的组织程度,是党准备群众的过程,亦即马克思主义大众化的过程。     

青工素质现代化与高技能人才培养

加快青年工人的职业素养现代化,是企业与青年的共同追求,也是企业青年工作的最佳切入口。建立在"社会智力论"、"隐性知识说"与"人力资本新定义"之上的企业青年职业素养现代化,将从职业意识现代化、职业道德现代化与职业心理现代化等三个"着力点"做起,并辅以开展适合教育、体验学习与闲暇活动等推进策略。     

基于SOA-XPM的波长变换器研究

研究了PTDS软件仿真平台上半导体光放大器交叉相位调制(SOA-XPM)波长变换器的变换特性分析了运用波长转换器时输入信号光功率输入探测光功率偏置电流等对变换信号的消光比ExQ值及误码率BER的影响并对该波长转换器的变换特性进行了研究其研究结果对优化设计SOA-XPM波长变换器有一定的参考价值     

高校教师发展中心的激励功能研究--基于中外案例的实证分析

以中外案例为基础,从总体分析和个案比较的实证角度,对高校教师发展中心的激励功能进行了探讨。研究表明,我国高校教师发展中心普遍存在激励功能缺失的问题,对激励功能的重视程度不如国外高校,但有些具体实践也不乏亮点。高校教师发展中心的激励功能应该体现为三个层次：一是对教学成就的认可,重点为表彰教学成就和明确教学地位;二是对教学研究的资助,重点为支持项目研究、满足发展需求;三是对教学发展的服务,重点为借助校外力量和提供专业指导。     

Measurement error correction for the cumulative average model in the survival analysis of nutritional data: application to Nurses’ Health Study

The use of the cumulative average model to investigate the association between disease incidence and repeated measurements of exposures in medical follow-up studies can be dated back to the 1960s (Kahn and Dawber, J Chron Dis 19:611–620, 1966). This model takes advantage of all prior data and thus should provide a statistically more powerful test of disease-exposure associations. Measurement error in covariates is common for medical follow-up studies. Many methods have been proposed to correct for measurement error. To the best of our knowledge, no methods have been proposed yet to correct for measurement error in the cumulative average model. In this article, we propose a regression calibration approach to correct relative risk estimates for measurement error. The approach is illustrated with data from the Nurses’ Health Study relating incident breast cancer between 1980 and 2002 to time-dependent measures of calorie-adjusted saturated fat intake, controlling for total caloric intake, alcohol intake, and baseline age.     

芜湖市城市化与房地产业发展关系的实证研究

城市化与房地产业发展是当前社会的热点问题。本文通过协整检验、Granger因果检验等计量方法对1991-2008年间芜湖市城市化进程与房地产业发展之间的关系进行实证研究。研究结果表明：就长期而言,城市化与房地产业构成稳定的均衡关系;城市化对房地产投资具有较强的引擎作用,但是对房地产实际销售面积的影响并不明显;房地产业的发展对城市化进程的贡献有限。因此,必须正确认识城市化与房地产业的关系,采取各项措施改变目前靠房地产业带动城市化的模式。     

Convergence for weighted sums of widely orthant dependent random variables

ABSTRACT

In this article, a complete convergence result and a complete moment convergence result are obtained for the weighted sums of widely orthant dependent random variables under mild conditions. As corollaries, the corresponding results are also obtained under the extended negatively orthant dependent setup. In particular, the complete convergence result generalizes and improves the related known works in the literature.