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111.
Behaviour problems in early childhood have a lasting impact on cognitive development and education attainment in later adolescence and into adulthood. Here we address the relationship conduct and hyperactivity problems at school entrance, and vocabulary acquisition in adolescence. We compare performance in identical assessments across two generations of British children born 30 years apart in 1970 (n = 15,676) and 2000/2 (n = 16,628) and find that both conduct and hyperactivity problems have a negative association with later vocabulary in both generations. We take advantage of rich longitudinal birth cohort data and establish that these relationships hold once family socioeconomic status and a child’s personal characteristics and earlier vocabulary acquisition are taken into account. We also find that teenagers today achieved substantively lower scores in the vocabulary assessment compared to their counterparts born 30 years earlier, and that this holds across all categories within each of the family and individual characteristics considered in this article. As vocabulary and language skills are key prerequisites for wider learning, we discuss implications the findings have for education policies.  相似文献   
112.
岑艺璇 《现代情报》2006,26(4):201-203
教育一直被认为是政府的一项职能,然而在一些落后的国家。社舍下层子女很难获得平等的受教育的机会,这与发达国家的教育状况存在很大差距。这一问题也给教育整体水平带来了不利影响。尽管政府一再申明教育的平等性,然而富者仍然借势获取了大量的教育机会。战后越南的教育发展对此做出了很好的诠释.对我们有很大的启发。  相似文献   
113.
应用凸函数的基本不等式和相关命题去证明不等式。  相似文献   
114.
介值定理在中学数学中的应用   总被引:1,自引:0,他引:1  
章主要讨论介值定理在中学数学中的应用。在中学数学中介值定理主要应用在下列三类问题:(1)方程根的分布;(2)解不等式;(3)反函数的存在性与定义。  相似文献   
115.
应用权函数的方法,建立一个新的具有最佳常数因子的Hilbert型积分不等式,同时考虑了联系若干Hilbert型积分不等式的最佳推广,并给出其等价形式与级数形式  相似文献   
116.
Abstract

American society is in the midst of profound economic and demographic changes. At the same time that the racial and ethnic composition of American society is changing, disparities in income and wealth have grown wider and more pronounced than ever before. This article explores the ways in which race is implicated in the widening gaps in wealth and opportunity, and how these inequities impact educational achievement.  相似文献   
117.
The study examines the relationship between social inequalities (stratificational, gender and other disparities) and schooling, including academic attainment, longitudinally, in Slovenia. The issue is indicated most clearly at the tertiary education level. The basic finding is the parallel between educational expansion and the diminution of social inequalities as measured by standard parameters. This was particularly evident in the 1990s. Inequalities are measured in terms of gender, parental education and occupation. The impact of parental education proves to be an indicative, observable and longitudinally comparative measure. Parental occupational status is also clearly linked to their children’s scholastic attainment, although there are difficulties in the formation of occupational strata. Further considered is the impact of school reforms over a lengthier period of time; there was not, however, any detectable impact. School and welfare policies, even financing, have little significance. There are clear indications that social disparities at school are continually regenerated, despite the decline established by standard measures. New forms of social disparities appear, through which the privileged ensure the continuation of privilege.  相似文献   
118.
通过对两个积分式做变量代换和利用拉格朗日中值定理,得出了一个关于凸函数的Hadamard型不等式;推广了前人的成果.  相似文献   
119.
This paper analyzes the challenges embedded in the conflict between the right to accessible education, which implies a prohibition on discriminatory practices in school admission, and the right to adaptable education, which accommodates children’s cultural affiliations. It shows that a normative lens, which examines the ways by which legal rules correspond to conflicting rights and interests, cannot fully capture the tension between legal prohibitions on discrimination in education and the sociocultural norms in religious communities. Thus, the paper offers a socio-legal lens, which focuses on the context of admission policies to Jewish religious schools. Based on three test cases of admission policies to Jewish religious schools in Israel, England, and Flanders, Belgium, the paper demonstrates how the legal rules regulating the admission policies are influenced by social forces. In Israel and England, these forces have facilitated a descent down slippery slope, originating with religious criteria, but concluding with discriminatory criteria. They also shaped admission practices reflecting the asymmetric power relations between the institutional school systems and individual families. The paper highlights the benefits of the Belgian policy, which proscribes religious classification of school candidates. This policy circumvents the ambiguous distinction between religion, ethnicity, and social class, and expands educational choices.  相似文献   
120.
通过估算权函数,建立一个新的、含参数的且具有最佳常数因子的Hilbert型积分不等式及等价式.  相似文献   
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