教育技术的范式及其历史演变

教育技术的 4个范式包括媒体范式、传播与系统范式、行为科学范式、认知科学范式。许多教育技术学者开始探索并发展新的范式。库恩的科学范式的理论 ,讨论了教育技术领域的范式变迁 ,指出这实际上是一个范式持续在演变的过程。     

OPTIMIZING UNIVERSITY ADMISSIONS PLANNING

The crucial issues in the administration of higher education embody the very purpose, function, and concept of each institution. The institution's administrative policies are based on the combined philosophy of many conflicting interest groups such as taxpayers, donors, administrators, faculty, students, staff, and users of university services. A function performed by the university which is receiving increasing attention and outside pressure is the formulation of admissions policy for newly entering students. This paper investigates problems involved in the admissions planning and presents a goal programming model as an optimization tool for the problem.     

论和谐民族观

就民族工作来说,建设社会主义和谐社会,必须树立与落实和谐民族观,处理好民族问题,做好民族工作。要以科学发展观为指导,在中国特色社会主义的伟大事业中,创建平等、团结、互助、和谐的社会主义民族关系,从而为构建社会主义和谐社会提供坚实的民族基础。     

Effect of Inventory Information Discrepancy in a Drop‐Shipping Supply Chain

This article investigates the impact of information discrepancy between a drop‐shipper and an online retailer on the drop‐shipping supply chain performance. The inventory information misalignment between them contributes to the failure of order fulfillment and demand satisfaction, and hence the associated penalties are incurred. In this article, we first analyze the penalties of ignoring such information discrepancy on both the drop‐shipper and the online retailer. We then assess the impact of information discrepancy on both parties when the drop‐shipper understands the existence of the information discrepancy but is not able to eliminate the errors. The numerical experiments indicate that both parties can have significant amount of the percentage cost reductions if the information discrepancy can be eliminated, and the potential savings are substantial especially when the errors have large variability. Furthermore, we observe that the online retailer is more vulnerable to information discrepancy than the drop‐shipper, and the drop‐shipper is likely to suffer from the online retailer's underestimation of the physical inventory level more than the problem of its overestimation. Moreover, even if eliminating errors is not possible, both parties could still benefit from taking the possibility of errors into consideration in decision making.     

A qualitative case study of a Korean former addict’s existential self‐interpretation and identity transformation

This study explored the case of a former addict, focusing on his existential self‐interpretation and identity transformation process. This study began from the question of whether philosophical processes related to existential self‐interpretation could lead to the formation of the concept of bottoming out and of identity transformation. To answer this question, the study analyzed the case of a male in his mid‐forties who was addicted to drugs for approximately 30 years and has only recently maintained abstinence. The study used the phenomenological approach to determine the meaning drugs held for him in each stage, and what drug‐related identity he had in each stage. Further, this study identified the integrative implications of these meanings in terms of existential self‐interpretation and identity transformation. The four different identities the man identified for the four stages of his life were juvenile delinquent, gang member, half‐gangster, and breadwinner, and the associated meanings drugs had for him during each period were “glue,” “filthy,” “leeches,” and “abstinence,” respectively. Finally, this study elucidated the integration of these meanings through the hermeneutic circle, identified the social welfare implications of the findings, and developed educational recommendations.     

Noninformative priors for the between-group variance in the unbalanced one-way random effects model with heterogeneous error variances

For the unbalanced one-way random effects model with heterogeneous error variances, we propose the non-informative priors for the between-group variance and develop the first- and second-order matching priors. It turns out that the second-order matching priors do not exist and the reference prior and Jeffreys prior do not satisfy a first-order matching criterion. We also show that the first-order matching prior meets the frequentist target coverage probabilities much better than the Jeffreys prior and reference prior through simulation study, and the Bayesian credible intervals based on the matching prior and reference prior give shorter intervals than the existing confidence intervals by examples.     

虚拟思维是实践思维的新形态

"用实践的眼光看待一切"的实践思维,是马克思哲学用来分析和把握世界的一种基本方法。它源自实践,随着实践的发展而发展,在不同时代表现出不同的形式。虚拟思维是当代人类实践活动的催生物,是实践思维在当代的新发展、新形态。     

科研诚信视域下我国人文社科研究成果的基金项目标注行为分析

基金项目标注规范是科研诚信建设的重要组成部分,基金项目资助产生的研究成果在发表时,应按照相关规定进行规范标注,但基金项目标注失范行为却时有发生,基金项目的真实价值未能正确体现.对人文社科领域的基金项目标注行为进行分析,可为防止学术不端、规范基金标注行为、制定基金资助政策提供依据.在分析国家社科基金、国家自科基金等项目标注规定基础上,以2016—2020年间24万余篇标注国家社科基金项目的研究成果为样本,总结归纳出虚假基金、冒用基金、挂名基金、内容无关基金、过期基金、补充基金和多个基金等七种基金项目标注失范行为后,对基金项目标注行为进行分析研究.研究发现,有近50％的研究成果存在多个基金标注失范行为,研究成果质量越高,平均标注的基金项目数量越少;基金项目标注失范行为与学科、地区、成果类型存在相关关系,但不受项目类型的影响.     

基于RV模型的我国存款保险费率模拟测算

虽然目前我国尚未建立存款保险制度,但从长远来看,存款保险制度的建立势在必行。合理的存款保险定价是存款保险的核心内容,如果定价不当就易引发道德风险、逆向选择等问题。文章以中央汇金公司对我国国有银行和股份制商业银行的注资额为基础求得更符合我国实际的监管宽容系数,并运用Ronn-Verma方法对我国的存款保险费率进行了模拟测算。测算结果表明我国国有银行的保险费率普遍低于股份制银行和城市商业银行,但并不能绝对化,存款保险费率的确定要综合考虑银行的风险和经营能力。     

Noninformative priors for the common mean in the bivariate normal distribution

In this paper, we consider some noninformative priors for the common mean in a bivariate normal population. We develop the first-order and second-order matching priors and reference priors. We find that the second-order matching prior is also an HPD matching prior, and matches the alternative coverage probabilities up to the second order. It turns out that derived reference priors do not satisfy a second-order matching criterion. Our simulation study indicates that the second-order matching prior performs better than the reference priors in terms of matching the target coverage probabilities in a frequentist sense. We also illustrate our results using real data.