如何利用MOOC的基本原则指导学习活动的开展——以牛津布鲁克斯大学FSLT12课程为例

基于联通主义的基本观点,Downes等人总结出了MOOC课程的四个基本原则：聚集、重组、再利用和分享。以牛津布鲁克斯大学的＂高等教育学习和教学的第一步（FSLT12）＂的MOOC为例,通过分析该课程中四个基本原则指导下开展学习活动的特点,分析并阐释这四个基本原则,从中获得对我国MOOC建设的启示。     

Public funds and local biotechnology firm creation

A long stream of academic literature has established that public funding towards research and development matters for economic growth because it relates to increases in innovation, productivity and the like. The impact of public funding on the creation of new firms has received less attention in this literature despite theoretical constructs that support such association. In the present paper we study whether indeed there is a relationship between public research funds and local firm births in the context of the U.S. biotechnology industry. In doing so, we introduce a number of changes that strengthen the robustness of our findings when compared with existing literature. These changes include a direct measure of research expenditures and a considerably lengthier longitudinal dataset which allows us to capture a structural relationship and not a chance event. We empirically demonstrate that increases in the level of research funding from the National Institutes of Health towards biotechnology associate with increases in the number of biotechnology firm births at the Metropolitan Statistical Area level. Further, we reveal that public funds towards established firms associate with local firm births considerably more strongly when compared with funds towards universities and research institutes/hospitals. We conclude the paper with academic and policy implications of the present work that highlight the complexity of factors that underlie the creation of local firms in high technology industries.     

旋转线阵LED图文显示装置的研制

目前市场上点阵式LED显示屏存在控制系统庞大、造价过高等缺点。通过线阵LED控制和电机驱动控制这两部分的设计,来完成基于STC12LE5A16S2单片机的旋转线阵LED图文显示装置的设计。经过软硬件调试,该装置实现了同心圆显示、中英文字符显示、指针式秒表显示、转速显示、各个显示状态无线遥控切换、LED的亮度根据环境光线调整等功能。经过测试秒表走完一圈误差为0．01秒,转速误差为5％。该显示装置电路简单、显示图形稳定清晰,克服了点阵式LED显示屏的不足。     

美国K-12阶段学校体育的发展及其启示

K-12阶段的学校体育是美国国民体育的基石,它主要在美国健康、体育、休闲与舞蹈协会和国家竞技与体育协会这两个专业机构的引领下获得发展。20世纪50年代以来,美国K-12阶段学校体育的发展时有起伏,并呈现出"钟摆式"的运动轨迹。其发展过程对于推动中国学校体育事业的发展有一定启示。     

美国K-12阶段技术教育:背景、现状与启示

着当代技术的高速发展,技术教育得到了世界各国的广泛重视。美国K-12阶段技术教育以技术素养的培养为目标,在课程内容设置上具有多样性,技术课堂教学强调技术设计,并重视技术教师培养和培训。美国K-12阶段技术教育的许多经验可为我国中小学技术教育提供借鉴。     

美国外语教师职前培养项目标准述评

本文以历史文献分析法,从五个美国外语教师职前培养项目标准中得出五个结论:重视外语教师职前培养,培养项目体系日臻完善;培养内容重心从教师学科知能转向教师整体专业结构;培养项目标准结构均衡化,从外在工具性过渡为内在自主性专业发展特征;回归语言学习的人文本质,培养文化多元的国际意识;重视教学管理能力培养,强调评估能力均衡发展。     

Trust and Mobile Media Use in Schools

Abstract

This article shares findings from a year-long study about social practices of high school youth with mobile devices during school time. In particular, this study found that students see their school time as fluidly social and academic. Educators and policy-makers need to carefully consider these social practices when preparing 21st century youth for engaging with technology in responsible and meaningful ways beyond their time in school.     

安徽“十二五”期间地区新经济增长点选择研究

基于2010年度安徽省统计年鉴,利用SPSS统计分析软件中的因子分析法对安徽省十七个地市的经济数据进行了分析,在分析所得结果的基础上通过聚类分析将安徽省十七个地市分为四类,并结合区域政策预测"十二五"期间安徽省地区新经济增长点的结论,为安徽省的政府工作提供建议。     

激光烧结快速合成Al2（WO4）3材料

采用激光烧结快速合成方法合成了形貌良好的Al2（WO4）3材料。扫描电镜（SEM）发现合成物样品表面组织呈树枝状,具有定向生长的趋势。能量散射光谱（EDS）分析显示合成物内部成分分布均匀。X射线衍射（XRD）分析证实合成物主要是Al2（WO4）3材料。拉曼光谱分析说明在合适激光工艺参数下可避免原料挥发,使原料完全参与反应。     

从语义和文化的角度论十二生肖的翻译

本文从语义和文化的角度出发,通过比较十二生肖的英汉语义和文化背景知识,探讨十二生肖在英语中恰当的翻译,揭示中英两种文化间的差异,阐述了将翻译研究与语义、文化研究有机地结合起来指导翻译实践,成功地实现跨文化交流的思想。