离散频谱分析的一种新校正方法

提出了一种对幅值谱进行校正的新方法,用以解决离散频谱当谱峰没有对正峰顶,有能量泄漏所带来的误差,并讨论了矩形窗、汉宁窗、海明窗和高斯窗四种窗函数的修正方法,校正的频率、幅值和相位的精度可达细化100倍以上的效果。     

透析生活史研究在古德森教师研究中的角色

生活史研究已日渐运用于当代教育研究中。英国教育社会学家艾沃·古德森不仅较早地将其用于课程研究，还更多地用于教师研究。文章考察了古德森不同阶段的教师研究，分析了生活史研究在教师研究中所扮演的角色：为教师生活研究提供研究方法；为在"中间地带"建构理论提供资源；为促成教师"叙事学习"和"叙事教学"场域奠定基础。指出运用生活史研究是古德森教师研究生涯中一以贯之的思想，背后有其对教师深刻的社会关怀。这一思想在其教师研究中扮演着多重角色，对我国教师和教师教育研究者及实践者而言，有诸多借鉴意义。     

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.     

制度环境、风险感知对供应链网络治理模式选择的影响研究

本文以新制度理论与交易成本理论进行对话,从合法性视角构建中国情境下制度环境、风险感知与供应链网络治理模式选择之间影响机理的理论模型。通过问卷调查的方式收集117份有效问卷,并采用结构方程模型方法实证检验制度环境、风险感知对供应链网络治理模式的"形塑"作用。研究结果表明,制度环境是影响供应链网络治理模式选择的重要因素,强制制度对供应链网络治理模式选择具有显著影响,规范制度的影响作用不显著。在供应链网络治理模式选择过程中关系风险感知具有完全中介作用,而绩效风险感知具有部分中介作用。     

权力话语视阈下的《愤怒的葡萄》

《愤怒的葡萄》是约翰·斯坦贝克的代表作。小说讲述了在20世纪30年代美国经济萧条背景下,乔德一家人向加利福尼亚逃荒,以图获得美好的生活。然而,现实的残酷造成等待他们的仍然是饥荒、贫穷和失业,美梦的破碎导致成千上万像乔德这样的家庭奋起反抗。以权力话语理论为切入点,对小说中的主要人物进行解读,有助于实现微观权力和宏观权力的结合,进一步加深对小说的理解。     

Assessing the relevance of higher education courses

The establishment of the European Higher Education Area has involved specifying lists of professional competencies that programs are expected to develop, and with this the need for procedures to measure how every course within a higher education program is aligned with the program's competencies. We propose an instrument for characterizing this alignment, a process that we call assessing the relevance of a course. Using information from the course syllabus (objectives, contents and assessment scheme), our instrument produces indicators for characterizing the syllabus in terms of a competence list and for assessing its coherence. Because assessment involves quality, the results obtained can also be used to revise and improve the course syllabus. We illustrate this process with an example of a methods course from a mathematics teacher education program at a Spanish university.     

酒文化与旅游的关系漫谈

酒文化与旅游二者之间是一种互容关系,其紧密的结合构成了较深的文化底蕴。酒文化与旅游联姻的历史由来已久,即便在当代,渗入酒文化的旅游也能展示其独有的旅游特色。     

20世纪中西文化观念的冲突与会通

中西两种文化是两种类型的文化系统,前者是实践理性精神,而后者则是理论理性精神。１８４０ 年鸦片战争后,西学东渐并与中学发生了冲撞,中国人开始向西方学习,先学其技术,后学其制度,再学 其科学方法和价值观念,直至从哲学思维的深层上试图融合中西两种文化。在此方面．现代新儒家的诸 种努力是颇有借鉴意义的。本文在评判诸种文化会通方案的基础上,指出中西文化的会通是一项艰巨和 复杂的任务,首先必须淡化和消除民族文化中心主义的立场和观念;而要真正实现中西文化会通,还需 要作长期坚韧不拔的努力。     

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.