Heterogeneous treatment effects on Children's cognitive/non-cognitive skills: A reevaluation of an influential early childhood intervention

The 1962–67 High/Scope Perry Preschool Program, a well-known experimental early childhood intervention study that provided quality preschool education to disadvantaged children, has been shown to have had positive impacts on early child development and on a variety of adulthood outcomes. However, most previous analyses have only examined average treatment effects across all program participants without exploring possible effect heterogeneity by children's background characteristics. We investigated this question by first using the 1964–65 Current Population Survey data in combination with the Perry data to construct a scale of child socioeconomic status based on the estimated propensity for inclusion in the Perry program, then analyzing effect heterogeneity within the Perry sample by strata of our socioeconomic scale. We found that the treatment effects of enrollment in the Perry preschool on cognitive and non-cognitive skills were much larger and more persistent among the most disadvantaged children than among others in the Perry program. Furthermore, among the most disadvantaged children, the treatment (i.e., preschool enrollment) affects later outcomes through a reinforcement mechanism of skill development (i.e., early cognitive gain leads to a non-cognitive gain, which in turn leads to later cognitive gain) and a sequential improvement of cognitive skills over time. These findings have important implications for the evaluation of policy interventions in early child development using experimental data.     

两汉孙吴会稽郡诸部都尉考

The commander was mainlu in charge of the army in the local administration system during the Han Dynasty to the Sunwu Period. As the border prefectures were important in military defense, the armies of these prefectures were commonly divided into parts. Therefore, the army of Kuaiji Prefecture were divided into West Section Duwei, East Section Duwei and South Section Duwei. The West and East Section Duweis were founded for the purpose of suppressing the adherents of Yuyue as well as the Minyue and Ouyue people in the southeast coastline. In demand of securing the safety of the ship routes alongside the southeast coastline, the East Section Duwei migrated frequently within the area. In the meantime, the foundation of South Section Duwei was the result of the Sunwu government suppressing the local force and pillaging the labor resources in a partition background     

Parents’ perspectives of social support and social cohesion in urban contexts of diversity

Although provisions for young children are increasingly considered as ideal places to foster an inclusive and socially just society by embracing issues of social support and social cohesion, there is no in-depth understanding of the role these provisions can play in enabling supportive and cohesive encounters in contexts of diversity. Even more striking is the absence of parents’ voices in this discussion. Based on an analysis of qualitative interviews with 18 parents who use childcare services in urban contexts of diversity, our findings show the relevance of ephemeral contacts with diverse people that could offer bridging opportunities in terms of social connectedness to familiarise within diversity while decoding the other in urban contexts of diversity. However, neither bonding nor bridging contacts appear as self-evident. Our research shows that the role of childcare services might be vital in creating light and temporal communities as the prerequisite for social cohesion to flourish, in both individual as well as collective dimensions.     

抗战时期陕甘宁边区学前教育建设的经验与启示

抗战时期，陕甘宁边区在中国共产党的领导下进行了独具特色的学前教育建设活动，形成了独特的建设经验，主要包括提供保障措施、建立精简高效的组织架构、注重保教队伍的建设、关爱幼儿的身体健康、开展科学的教育教学工作。重现边区学前教育活动，探寻其成功经验，继承与发扬红色教育精神，对新时期幼儿的培养与培育有积极的现实指导意义。     

近代早期城市的能源贸易与能源消费问题——以英格兰海煤为中心

中世纪至近代早期,海煤逐渐发展成为英格兰重要的贸易商品。贸易交换的增加,带动了英格兰的海煤消费。因此有学者认为,英格兰近代早期的城市污染与海煤的贸易和使用有密切关系。通过梳理英格兰海煤的贸易轨迹,得知近代早期英格兰海煤的贸易特点:以纽卡斯尔和布里斯托尔为典型的出口港口,以伦敦为典型的进口港口。近代早期英格兰的城市污染,尽管有消费海煤带来的影响,但二者之间并不存在明显的直接相关。海煤在英格兰近代化的历程中发挥重要的积极作用。     

论清初儒学之重整

清朝建立后,本着加强思想专制的目的,确立了定朱学于一尊与大兴文字狱并行的文化政策。与此同时,明代遗臣在追寻旧朝覆灭原因的过程中,普遍察觉到前朝政治的软弱乏力在很大程度上应当归咎于理学性格的虚浮疏阔。若要彻底革正宋明理学的玄虚之病,就必须使学术朝着原始儒家的方向复归：在内容上,不能再纠缠于本体心性的繁杂辨析,而应尽力向现实关怀靠拢;在形式上,亟需挣脱滋养空言的语录之学,回归到深具致用精神的经学上来。其哲学表现,即是气本论思想的大举复兴,并从“气质之性”出发对人的自然情欲给予充分认肯;在学术方法上,极力探索经义训解与“质测”实证的有机结合。总之,无论就广度还是深度而言,清初儒学重整运动都是中国古代学术史上浓墨重彩的一笔：它既是宋明理学的总结扬弃,又是乾嘉朴学的滥觞所出。     

基于动画前期创作的大脑图像库的建立探索

动画前期创作是整个动画创作过程中具有决定意义的重要阶段,当前动画前期创作的困境在于创造者的大脑中缺乏可转化的图像素材以及右脑思维发挥不足。如果想要切实提高创作的质量,必须对赖以工作的大脑进行充分的认识,了解左脑和右脑各自的功能和运作特点。基于动画前期创作建立大脑图像库是一个新课题,通过该课题研究可以提升动画创作者的创造力,进而提升国产动画的创作水平。     

唐宋穆斯林史实杂考

本文依据文献资料,对唐宋有关穆斯林史的几段有歧见的史料加以分析,内容涉及唐代的蕃坊、辽与大食的关系、蕃坊中蕃客的宗教信仰、蕃商社会的法律等问题,作者在引证学术界已有成果的基础上,提出了自己的观点。     

明清回族进士考略(一)

本文简略考证了明清时期顺天府、直隶所属州县 29位回族进士的生平、事迹,重点提供了他们为回族的根据,以为进一步深入研究的线索。     

明清回族进士考略(六)

本文考证了明清时期山西、江西、奉天、湖北所属州县14位进士的生平、事迹及其家世,重点提供了他们为回族的根据,以为进一步深入研究的线索。