Socioeconomic Inequality and Life Satisfaction in Late Childhood and Adolescence: A Moderated Mediation Model

An increasing number of studies have established an association between socioeconomic inequality and life satisfaction, but the underlying mediating and moderating mechanisms of this association have not been fully identified. The present study investigated the effect of family socioeconomic status (SES) on life satisfaction in late childhood and adolescence; examined the mediating effect of optimism in the association between family SES and life satisfaction; and tested whether this mediating process varied across late childhood and adolescence. A sample of 552 Chinese children in late childhood (M _age = 10.73 years, SD = 0.96) and 637 Chinese adolescents (M _age = 14.71 years, SD = 1.60) was recruited to complete questionnaires regarding family SES, optimism, and life satisfaction. Results indicated that socioeconomic inequality was associated with life satisfaction in Chinese children and adolescents. Moreover, optimism partially mediated the relation between family SES and life satisfaction, and developmental period moderated this mediation effect. Specifically, the mediation effect was found in adolescence, but not in late childhood, indicating an adolescent-emergent model (Chen et al. in Psychol Bull 128(2):295–329, 2002; in Soc Sci Med 62(9):2161–2170, 2006). The meaning and implications of socioeconomic inequality in different development periods and applied considerations to improve life satisfaction in late childhood and adolescence are discussed.     

空间外溢视角下的协同创新与区域产业升级

本文从空间维度廓清了协同创新对区域产业升级的空间外溢机制和外溢效应边界形成机理。采用中国分省区面板数据,利用地理距离和社会经济特征多种空间权重矩阵设定的空间杜宾(Durbin)模型实证检验了协同创新对产业升级的影响。结果表明：协同创新对产业升级既有区域内溢出效应,也有区域间溢出效应。空间外溢效应在很大程度上通过创新要素区际流动来实现,且呈现出地理距离衰减特征。进一步考虑地理区位特征差异发现：空间外溢对产业升级的带动效应在中部地区最强,西部地区次之,东部地区最弱。本研究结果有助于全面认识协同创新作用机制,对推动区域间良性互动,实现产业升级发展具有重要现实意义。     

制约我校高水平运动队可持续发展的主要因素与对策

运用文献资料法和逻辑分析法等分析了制约我校高水平运动队可持续发展的主要因素,提出了实现我校高水平运动队可持续发展的具体对策.     

从我国弱势群体的弱势特征看社会政策支助体系的设计框架——基于北京市老年残疾人视角的分析

建立科学的社会政策支助体系是满足弱势群体需求和推进和谐社会建设的重要方面。本文以北京市老年残疾人为对象,具体分析了弱势群体的弱势特征,并依据这些特征提出了包括政策目标、政策依据、政策原则、政策构架等部分的社会政策支助体系的设计框架。     

壮族与客家杂居的空间结构分析——壮族与客家关系研究之一

随着历史上各个时期的移民运动,客家人不断进入壮族聚居地区,逐渐形成壮族与客家杂居的局面.在壮族与客家杂居地区,壮族的分布以桂西南、桂西最为集中,往东逐渐递减;客家的分布以桂东南最为集中,往桂西、桂西北逐渐递减,桂中地区是壮族与客家杂居最为普遍的地区.总的来说,客家人在壮族地区的分布呈现出大分散、小聚居的特点,这种分布格局的出现是和历史上客家与壮族的迁移以及民族融合密切相关的.     

发达国家校车运营管理模式及对上海的启示

从发达国家的经验来看,比较好的校车运营管理模式是委托经营型。从实际情况来看,上海的市场经济比较发达,居民收入相对较高,政府管理体制比较成熟,更适合引入委托经营型的校车运营管理模式。近年来随着上海地铁线路的增加和公交线路的调整,富余的公交车辆也为社会和企业参与校车的运营创造了基本的硬件条件。     

Regularized parameter estimation of high dimensional t distribution

We propose penalized-likelihood methods for parameter estimation of high dimensional t distribution. First, we show that a general class of commonly used shrinkage covariance matrix estimators for multivariate normal can be obtained as penalized-likelihood estimator with a penalty that is proportional to the entropy loss between the estimate and an appropriately chosen shrinkage target. Motivated by this fact, we then consider applying this penalty to multivariate t distribution. The penalized estimate can be computed efficiently using EM algorithm for given tuning parameters. It can also be viewed as an empirical Bayes estimator. Taking advantage of its Bayesian interpretation, we propose a variant of the method of moments to effectively elicit the tuning parameters. Simulations and real data analysis demonstrate the competitive performance of the new methods.     

有声的世界——西藏口语信息传播的功能分析

口语信息传播是西藏出现的最早的信息传播方式,具有鲜明的口传特征。口语传播在西藏发挥着重要的功能,藏民族比较早的就意识到了口语传播的功能,消除不确定性是西藏口语传播的最基本功能,口语传播是藏民族文化的生存和再生的场所,同时口语传播还发挥着社会化和教化的功能以及调节身心、娱乐生活的功能。     

天津区县工业园区规划编制方法研究

一、引言 伴随着中国城市化进程的推进和经济发展,区县工业区的发展也进入了一个新的时代,在国民经济中占有的地位越来越重要.相比国家级、市级开发区,区县工业区功能相对单一,产业发展特色突出,在规划编制中对实施性和操作性的要求最为强烈,这就对传统的规划编制体系和规划编制方法提出了新的要求.在天津近期开展的区县示范工业园区的规划编制实践中,探索尝试了适应区县工业区快速发展建设需求的规划编制方法.     

第四媒体与政府治理

第四媒体即网络,作为一个新兴的互动媒体,推进了政府的民主治理,提高了行政效率,促使政府治理方式革新,实现政府治理的办公自动化、网络化、电子化。网络和政府治理之间的良性互动正成为政府和普通民众关注的热点。同时网络也是一把“双刃剑”,政府也应对互联网进行引导和规范。