The Delphi technique: an untapped approach of participatory research

In this article, we describe ways that the Delphi technique can be extended from its more traditional approaches and processes in order to make it a tool for scholars using participatory methods. This innovative proposed approach is called the change-oriented Delphi. We describe this innovative approach using an example from our own work to create solutions to the growth of non-tenure-track faculty in higher education institutions, which is negatively impacting student outcomes.     

Conditional Akaike Information Criteria for a Class of Poisson Mixture Models with Random Effects

Focusing on the model selection problems in the family of Poisson mixture models (including the Poisson mixture regression model with random effects and zero‐inflated Poisson regression model with random effects), the current paper derives two conditional Akaike information criteria. The criteria are the unbiased estimators of the conditional Akaike information based on the conditional log‐likelihood and the conditional Akaike information based on the joint log‐likelihood, respectively. The derivation is free from the specific parametric assumptions about the conditional mean of the true data‐generating model and applies to different types of estimation methods. Additionally, the derivation is not based on the asymptotic argument. Simulations show that the proposed criteria have promising estimation accuracy. In addition, it is found that the criterion based on the conditional log‐likelihood demonstrates good model selection performance under different scenarios. Two sets of real data are used to illustrate the proposed method.     

Comparison between method of moments and entropy regularization algorithm applied to parameter estimation for mixed-Weibull distribution

Mixed-Weibull distribution has been used to model a wide range of failure data sets, and in many practical situations the number of components in a mixture model is unknown. Thus, the parameter estimation of a mixed-Weibull distribution is considered and the important issue of how to determine the number of components is discussed. Two approaches are proposed to solve this problem. One is the method of moments and the other is a regularization type of fuzzy clustering algorithm. Finally, numerical examples and two real data sets are given to illustrate the features of the proposed approaches.     

Exponential Inequalities in Stochastic Inverse Problems Using an Iterative Method

We consider an iterative method in order to solve linear inverse problems. We establish exponential inequalities for the probability of the distance between the approximated solution and the exact one for a calibration problem. The approximate is given by an iterative method with Gaussian errors. We treat an operator equation of the form Ax = u, where A is a compact operator.     

“春秋笔法”与唐代小说叙事谋略探微

唐代尚史之风弥漫于文坛,造就了小说家特定的知识结构,从而赋予他们以突出的"史才";而许多唐代小说又多与当时的政治现实密切相联,为能自由地抒情言志、寄寓褒贬,于是源于历史叙事传统的"春秋笔法"便成为唐代小说家重要的叙事谋略."春秋笔法"的内涵为:作者不作论断,而是将自己的主观褒贬暗寓于客观冷静的叙事之中;叙事隐晦深曲,讲究匣剑帏灯、旁敲侧击.此二法在唐代小说中得到了充分显示.     

Independence test in high-dimension using distance correlation and power enhancement technique

Abstract

This paper is concerned with independence test in high-dimension. A new test statistic is proposed with two terms: one is based on the modified distance correlation statistic, the other is constructed to enhance the power under sparse alternatives. Asymptotic properties of the test statistic are discussed under some regular conditions. The finite-sample simulations exhibit its superiority over some existing procedures. Finally, a real data example illustrates the proposed test.     

中国古代数学家李冶数学文化及教育思想研究

李冶是中国数学史上宋元四大名家之一,他不仅是一位杰出的数学家,而且也是一名著名的教育家。他先进的数学文化及教育思想对现代高校数学教育仍然具有很强的指导和借鉴意义。本文主要从李冶辉煌的数学成就、先进的数学文化观和认识论、先进的数学教育理念以及卓越的实践教育活动等对李冶数学文化及教育思想进行系统研讨,旨在从中得到新的教益和启发。     

排球规则的修改给技战术带来的变化

:1995年国际排联对规则进行重大修改 ,本文针对规则的修改进一步解析新规则给排球技战术带来的变化 ,同时提出在训练、比赛中应注意的问题及指导思想 ,以提高排球运动队整体技、战术水平 ,尽快适应今后排球比赛的要求。     

技术与社会发展关系的理性思考

理性是西方工业社会的核心文化理念之一.建立在理性主义基础之上的近代工业技术文明所带来的"病态社会"和"单项度的人"激起西方学者的激烈批评.法兰克福学派逐渐从早期对资本主义制度的批判,转向了对科学技术本身的批判并分析了人在技术统治下的异化状态.马克思主义从现实的劳动实践过程出发,揭示人的异化是资本主义技术或工业的一个必然结果.马克思主义的技术哲学观是解决技术进步与社会发展关系的重要思想武器.     

浅析当代大学生如何做好课堂笔记

课堂教学是学生获取知识和技能的主战场,学生做好课堂笔记对学习非常有益。要学生做好课堂笔记,师生必须共同努力,教师应备好课,讲好课,写好板书,做好PPT;学生应做好充分的准备,掌握记课堂笔记的技巧,用笔记搞好复习,巩固知识加强记忆。