Approximating moments of continuous functions of random variables using Bernstein polynomials

Bernstein polynomials have many interesting properties. In statistics, they were mainly used to estimate density functions and regression relationships. The main objective of this paper is to promote further use of Bernstein polynomials in statistics. This includes (1) providing a high-level approximation of the moments of a continuous function $g\left(X\right)$ of a random variable $X$, and (2) proving Jensen’s inequality concerning a convex function without requiring second differentiability of the function. The approximation in (1) is demonstrated to be quite superior to the delta method, which is used to approximate the variance of $g\left(X\right)$ with the added assumption of differentiability of the function. Two numerical examples are given to illustrate the application of the proposed methodology in (1).     

工程机械制造产业集群竞争力驱动因素研究--以徐州工程机械产业集群为例

研究以文献元分析为基础,开发量表并设计问卷提取相关因素,并以徐州工程机械产业集群为调研对象进行调研,结合主成分分析对其作进一步统计学处理与探索性验证。结果表明：集群网络协作能力、集群知识创新能力、集群科技产出能力、集群内外部环境、集群发展后劲是驱动工程机械产业竞争力的关键因素。     

论高校思想政治理论课的历史教育方法取向

高校思想政治理论课目标的实现,必须坚持历史唯物主义的价值立场,把历史教育方法作为基本方法。通过对历史教育方法科学内涵的阐述和其作为基本方法的缘由论证,指出运用历史资源及其方法原理实现思政教育主体与客体之间双向沟通的作用,充分利用和发掘历史资源的育人功能,让大学生把握知识源流,强化历史认同,构筑理想信念根基。教学中要以多样化的教学载体创建为有效路径,改进和提升高校思想政治理论课教学的实际效果。     

“诗意地栖居”：生态女性主义批评视角下的《雪花秘扇》

从生态女性主义批评视角对邝丽莎的小说《雪花秘扇》进行分析与解读。首先对《雪花秘扇》和生态女性主义进行了简单介绍;然后,从女性与自然和谐相处、父权制社会对女性与自然的迫害、女性与自然对父权制社会的解构和邝丽莎和谐生态观与诗意地栖居等四方面进行分析,进一步阐述了作者关于实现男性与女性平等相处,社会与自然和谐发展的“诗意地栖居”的美好境界。     

一类广义(2+1)维非自治长短波方程的整体光滑解的存在唯一性

利用先验估计和Galerkin方法,研究了非线性广义耗散(2+1)维非自治长短波方程在H4per(Ω)×H3per(Ω)上光滑解的整体存在唯一性.     

论英汉笔译课堂教学信息化的技术手段

本文结合国内高校英汉笔译教学的实际情况,讨论如何通过现有的技术手段在英汉笔译课堂上实现信息化教学,让课堂教学真正反映就业市场上笔译工作的实践特征,从而让现代教育技术更好地服务于笔译课堂教学,提高英汉笔译的教学效果。     

供应链应收账款融资信用风险评价

为区别于传统流动资产授信评价,在考虑供应链整体状况的基础上,对供应链融资模式中的应收账款融资信用风险的特征进行识别,构建供应链应收账款融资的信用风险评价指标体系。利用ANP法考虑各指标之间的依存和反馈关系,使用super decision软件计算得出各指标ANP权重,然后结合灰色综合评价法,对供应链应收账款融资的信用风险进行量化。     

邓小平理论的逻辑起点研究之我见

关于邓小平理论的逻辑起点,有多种不同的观点,比如：社会主义的本质论、社会主义的初级阶段论、真理标准论。其实,一个单一的逻辑起点是很难统摄邓小平理论所涉及到的方方面面的,我们应该分别为邓小平理论所涉及到的不同方面找出不同的逻辑起点。     

Researchers Behind Policy Development: Comparing ‘Age-Friendly Cities’ Models in Quebec and Wallonia

Based on a reflexive method, this article explores the roles of researchers behind Age-Friendly Cities and Environments. Referring to Michael Burawoy's division of sociological work (professional, critical, policy and public sociology), it is structured around the international comparison of two empirical case studies: Walloon region (Belgium) and Quebec (a province of Canada). While the first case shows some difficulties faced by a limited policy sociology perspective with little room for research, the latter presents a more developed public sociology approach with larger involvement from research. If both cases started with policy links, the latter presents a special interest for praxis, through knowledge transfer as an ongoing public dialogue. Based on this comparison, the article concludes with a twofold use of praxis: on one side – knowledge in action – a public sociology position offers an original perspective on what AFC/AFE may mean and produce to avoid a limited field of actions focusing only on some stakeholders or advocates for older people. On the other side – action in knowledge – policy and public sociology question professional and critical sociology facing AFC/AFE programmes: is a purely academic knowledge of such a programme epistemologically realistic or should it necessarily be empirically fuelled?