Latent Character Strength Profile and Grouping Effects

Social Indicators Research - Previous studies have shown that personality types may lead to different health status. The current study aims to refine a previous typological profile of strength...     

区域新格局背景的域镇化与工业化协调发展

城镇化与工业化紧密联系、互相促进。我国城镇化总体水平滞后于工业化,改革开放后这种滞后现象趋于缩小;由于城镇化的发展受自然基础和政策因素影响,各个地区又呈现出不同的情况。城镇化与工业化的区际差异性,要求在不同的区域实行不同的政策,促进城镇化与工业化的协调发展。     

个体协整条件下面板单位根检验统计量性质研究

 本文通过蒙特卡洛模拟试验,研究了个体间的协整关系对面板单位根检验统计量分布、实际检验水平及检验功效的影响。结果显示：个体间协整关系个数和协整向量均对检验统计量分布产生影响;同时,如果忽视个体间存在的协整关系,继续运用个体间无协整关系条件下检验统计量的临界值进行面板单位根检验,各检验统计量实际检验水平将严重失真。     

研究生英语写作教学改革的探讨

分析研究生英语写作能力现状,论述提高英语写作能力的必要性,并以输出驱动假设理论为指导,以过程教学法为具体操作方法,就如何提高研究生的英语写作能力提出可行性建议。     

浅谈当代社会人文精神的培养

当代社会人文精神的培养,对于社会主义和谐社会的建设具有重大的现实意义。人文精神的培养,关键是抓好人文教育,其次是明确在全球视野中建设和谐家园的实践,特别是要加强科学精神与人文精神的培养教育。     

要重视流动儿童少年的教育问题

流动儿童少年人口的教育问题必须受到重视 ,流入地政府和教育部门要从全国的高度认识流动儿童少年的教育问题 ,流入地的学校要采取措施吸收流动儿童少年入学 ,以更好地发挥流入地的教育资源优势 ,要允许流动人口开办“打工子弟校” ,从事流动儿童少年的教育工作 ,同时 ,对各种“打工子弟校”要加强管理。在“入学率”和“巩固率”统计中 ,要改“户籍人口”口径为“常住人口”口径 ,以促使流入地更好地关心流动儿童少年的教育问题     

和谐社会共建共享的本质内涵及价值意义

党的十六大以来,以胡锦涛同志为总书记的党中央领导集体,先后提出科学发展观和构建社会主义和谐社会的伟大战略构想。构建社会主义和谐社会就是中国共产党领导全体人民共同建设、共同享有的和谐社会,形成"以人为本"为核心、"和谐社会"为目标、"科学发展"为手段的共建共享。对实现人民共享改革成果具有重大的理论和价值意义。实现人民共享必须处理好社会发展与个人发展、共建与共享、权利与义务的关系。     

Ensemble Approaches to Estimating the Population Mean with Missing Response

We propose new ensemble approaches to estimate the population mean for missing response data with fully observed auxiliary variables. We first compress the working models according to their categories through a weighted average, where the weights are proportional to the square of the least‐squares coefficients of model refitting. Based on the compressed values, we develop two ensemble frameworks, under which one is to adjust weights in the inverse probability weighting procedure and the other is built upon an additive structure by reformulating the augmented inverse probability weighting function. The asymptotic normality property is established for the proposed estimators through the theory of estimating functions with plugged‐in nuisance parameter estimates. Simulation studies show that the new proposals have substantial advantages over existing ones for small sample sizes, and an acquired immune deficiency syndrome data example is used for illustration.     

Real-time reliability evaluation of two-phase Wiener degradation process

Reliability modeling and evaluation for the two-phase Wiener degradation process are studied. For many devices, the degradation rates could possibly increase or decrease in a non smooth manner at some point in time due to the change of degradation mechanism. A two-phase Wiener degradation process with an unobserved change point is used to model the degradation process. And we assume that the change point varies randomly from device to device. Furthermore, we integrate historical data and up-to-date observation data to improve the degradation modeling and evaluation based on Bayesian method. The change point between the two phases was obtained based on the Akaike information criterion (AIC) and the criterion of the residual sum of squares. Finally, a real example of liquid coupling devices (LCDs) and a numeric example are discussed to demonstrate the effectiveness of the proposed method. The results show that the proposed method is effective and efficient.     

Who should care for our kids? The effects of infant child care on early child development

This paper examines the relationship between various types of child care during the first year of a child's life and the child's language and social development measured at age three. A unique contribution of the paper is the estimation of a general selection-correction model that accounts for non-random selection of children into different types of child care. The analysis uses data from the Fragile Families and Child Wellbeing Study (FFCWS), a birth cohort of children born to predominantly low-income single mothers. The results indicate that compared with maternal care, relative care during infancy has more beneficial effects on a child's language development, while day care centers have more beneficial effects on a child's behavioral development.