Basic skill requirements for selected Army occupational training courses

This study investigated the basic cognitive skills soldiers must possess before entering the Army, skills that are needed for successful completion of entry-level training. Judgments of 126 instructors from 25 military occupational specialties were obtained on 129 candidate skills, which resulted in the identification of 55 basic skills. Factor analysis of these 55 skill items resulted in 11 interpretable factors. Mean scores on the factors were compared across factors and across Army training schools. The results of the study suggest that, for all occupational specialties studied, skills related to the learning process are as crucial as traditional academic skills for successful training course completion. These results have important implications for training for the Army as well as for industry.     

持续创新:摩尔模型扩展研究——基于“雅虎倒下”案例分析

高新技术企业如何进行创新能力管理是关系其能否持久生存的重要问题。对雅虎、Facebook等高新技术企业的案例进行比较分析，探索影响企业持续成长的创新管理问题；拓展摩尔模型中消费者心智阶梯的发展路径，并从企业创新能力管理角度扩展摩尔模型。研究结果表明：高新技术企业面对的消费者市场具有特殊的时序化创新偏好，无视时序化市场特征的创新能力管理方式将导致企业失去持续成长的动力，高新技术企业的核心创新能力必须能够满足其对应的时序化市场需要；创新能力发展对策是高新技术企业赢得市场、实现创新价值、保证持续成长的重要创新战略内容；高新技术企业的创新战略应构建在时序化消费者市场的基本特征之上，只有能够适时调整自身的创新能力发展方向才能满足其所面对的时序化消费者市场需求，获得下一阶段发展所需资源，实现科学的创新能力管理，获得企业的持续成长，为行业和社会发展提供创新支撑。     

基于元胞自动机带有隔离干预的传染病模型

考虑了个体的异质性、移动性和个体间的有效接触传染概率,提出了基于元胞自动机带有隔离干预的传染病仿真建模方法。扩展了传统的Moore邻域,模拟仿真了不同的染病停留时间和隔离力度对传染病传播的影响。仿真结果与采用隔离干预对传染病传播的宏观特征相吻合。研究表明:对已感染的患者,染病停留时间越短,采取隔离措施的力度越大,对传染病传播的抑制作用越显著。可为政府和相关部门对传染病制定有效的遏制措施提供理论支持。     

粉防己多糖的组成及其清除活性氧自由基的作用

目的:提取并纯化粉防己多糖(SMP),确定其组成,研究其清除活性氧自由基的作用.方法:利用水提醇沉得到粉防己粗多糖,再经DEAE纤维素和聚酰胺纯制.利用Fenton反应研究SMP清除·OH的作用;利用邻苯三酚自氧化法研究SMP清除·O2-的作用.结果:纸色谱显示SMP是由葡萄糖组成的匀多糖;SMP清除·OH的能力较弱;清除·O2-时的效果稍强,IC50为1956.1μg/ml.结论:粉防己多糖为首次提取制得,有一定的清除羟自由基和超氧阴离子自由基的作用.     

摩尔史学思想初探

《民主和专制的社会起源》是巴林顿·摩尔的史学代表作 ,表达了摩尔全球政治现代化呈多线流变的历史观 ,以及历史因果关系上的“社会结构决定论”。其中蕴含不少有价值的史学思想 :第一 ,强烈的时代感和理论创新精神 ;第二 ,可贵的全球史意识 ;第三 ,强调社会发展的多样性 ;第四 ,重视历史发展的持续性。当然也存在阶级偏见 ,我们应当一分为二地认识     

Assessing Student Openness to Inquiry-Based Learning in Precalculus

Abstract

The authors have completed a 2-year quasi-experimental study on the use of inquiry-based learning (IBL) in precalculus. This study included six traditional lecture-style courses and seven modified Moore method courses taught by three instructors. Both quantitative and qualitative analyses were used to investigate the attitudes and beliefs of the students in each section. In this article, we provide a summary of those results with a particular focus on the Openness to IBL survey we developed for assessing student preferences for either student-centered or teacher-centered instruction. Although the majority of the students exhibited a strong preference for direct instruction, students whose scores favored student-centered approaches according to the survey also tended to perform better on the final exam, indicating that a key element to success in an IBL course may be students’ perceptions of the method.     

国际远程教育研究的现状与挑战——专访国际远程教育著名专家迈克尔·穆尔博士

迈克尔·穆尔博士(Michael G.Moore),美国宾夕法尼亚州立大学学习和绩效系统系教育学教授,《美国远程教育杂志》主编,国际远程教育界著名的理论家和实践家,美国远程教育研究与实践的开拓者之一。在实践方面,他创办了美国第一本远程教育杂志——《美国远程教育杂志》(1987),在美国组织召开了第一个远程教育研讨会(1988),成立了美国第一个远程教育研究中心(1989);在理论方面,他提出了著名的远程教育独立学习和交互距离理论,编辑出版了多部远程教育著作,包括新近出版的远程教育百科全书——《远程教育手册》。     

Schur补和矩阵不等式

利用矩阵Schur补的性质,建立了若干关于半正定矩阵Hadamard乘积和普通加法的矩阵不等式,推广了相应的结果。     

It's Not the Moore Method,But… A Student-Driven,Textbook-Supported,Approach to Teaching Upper-Division Mathematics

This paper describes, as an alternative to the Moore Method or a purely flipped classroom, a student-driven, textbook-supported method for teaching that allows movement through the standard course material with differing depths, but the same pace. This method, which includes a combination of board work followed by class discussion, on-demand brief lectures by the professor, written homework, exams, and a course portfolio, has been used successfully for 25 years with four different textbooks in Real Analysis. It has also been used in an introduction to abstract mathematics course.