浅谈如何促进大学生进行有效的合作学习

文章介绍了合作学习的概念及促进合作学习的基本要素 ,探讨了在大学英语教学中如何促进学生进行有效合作学习的具体方法     

我国网络金融的发展现状与监管思路

继金融深化、金融自由化、金融国际化之后,金融网络化的问题再次成为关注的焦点。本文回顾了网络金融的发展态势及其可能对传统金融产业产生的深刻影响,对我国网络金融在发展过程中存在的主要问题进行了深入分析,在此基础上对如何加强金融监管以促进我国网络金融的健康发展提出了积极的对策建议。     

关于公民宪法诉权的几点思考

公民的基本权利需要法律的保护。论述了公民享有宪法诉权的理论依据,公民享有宪法诉权的实践意义,并通过对我国公民宪法诉权的适用范围和当前行使宪法诉权的障碍分析,提出了保障公民行使宪法诉权进而实现基本权利维护的几点建议。     

团队生产、计量难题与企业的性质

阿尔奇安和德姆塞茨(1972)从团队生产引发的“计量难题”及其解决机制的角度来解释企业的性质。本文在概述该企业理论的概念框架的基础上,指出了该理论存在的一个缺陷,即它忽视了企业的监督者-剩余索取者和其他成员之间的利益冲突及其解决机制。     

独立董事制度刍议

本文阐述了建立独立董事制度的重要意义,分析了我国上市公司独立董事制度存在的问题,并提出了健全我国独立董事制度的对策。     

对基础研究投入问题的思考

文章首先从公共财政的角度对基础研究的投入进行分析,其次从布什和斯托克斯的科研模式角度对基础研究的投入进行分析。在此基础上对加大我国基础研究的投入提出了相关建议。     

我国医疗社会保险的体系及存在问题

随着中国加入WTO ,社会保障事业开始与世界接轨。其中的一个重要问题就是社会医疗保险制度的改革及确立。在建立和完善社会医疗保险制度的过程中 ,遇到很多问题 ,还有很多内容需要从理论和实践两方面进行探索。     

贫困地区基础教育人才流失的现状与对策

近年来 ,贫困地区基础教育人才流向发达地区的比率增大 ,严重地影响了当地基础教育的发展。作为教育管理者 ,应高度重视这一现象 ,采取有效措施 ,完善教育人才管理体制 ,留住人才 ,以保证本地区教育事业的健康发展     

LENGTH-BIASING, CHARACTERIZATIONS OF LAWS AND THE MOMENT PROBLEM

A positive random variable X with a finite mean has an induced length-biased law represented by Y, and Y is stochastically larger than X. An independent uniform random contraction of Y, UY, has the same law as X if and only if the latter is exponential. This property is extended to non-uniform contractions and a more general notion of length-biasing. The distributional equality of X and W leads to a functional equation for the moment function of X, which has either Infinitely many solutions or none. When U is constant, X can have a log-normal law, but it can also have laws with the same moment sequence as this log-nod law. The case where U has a certain beta, or generalized beta, law give t3 characterizations of generalized gamma laws, or to products of independent copies of them. This occurs even when these laws are not determined by their moment sequences.     

Generalized Laplacian approximations in Bayesian inference

This paper presents a new Laplacian approximation to the posterior density of η = g(θ). It has a simpler analytical form than that described by Leonard et al. (1989). The approximation derived by Leonard et al. requires a conditional information matrix R_η to be positive definite for every fixed η. However, in many cases, not all R_η are positive definite. In such cases, the computations of their approximations fail, since the approximation cannot be normalized. However, the new approximation may be modified so that the corresponding conditional information matrix can be made positive definite for every fixed η. In addition, a Bayesian procedure for contingency-table model checking is provided. An example of cross-classification between the educational level of a wife and fertility-planning status of couples is used for explanation. Various Laplacian approximations are computed and compared in this example and in an example of public school expenditures in the context of Bayesian analysis of the multiparameter Fisher-Behrens problem.