农村中等职业教育生源困境的经济、社会关联性因素分析

现阶段我国农村中等职业教育生源困境有其经济、社会发展等的深层次原因,主要包括成本较高而收益不足,农业产业化水平不高,金融危机对职业教育校企合作模式的冲击,传统思想的影响以及职业教育资格认证制度不完善等。为此,应加大政府对农村中等职业教育的财政支持力度,调整农业产业结构,提升农业产业化经营水平,提高对职业教育重要性的认识,规范我国的职业教育资格认证制度等。     

Self-regulation of homework behaviour: relating grade,gender, and achievement to homework management

Abstract

The present investigation linked grade, gender, and maths achievement to homework management strategies using data from 305 Chinese students in grades 7, 8, and 9. These strategies included arranging the environment, managing time, handling distraction, monitoring motivation, and controlling potentially interfering emotion. A three-way MANOVA examined the effects of grade, gender, and maths achievement on homework management strategies. Grade or gender was not related to homework management strategies. Meanwhile, high-achieving students (compared with low-achieving students) were more likely to arrange the environment, manage time, handle distraction, monitor motivation, and control negative emotion.     

城市生活垃圾产量的组合预测

引入一种新的预测垃圾产量的方法——组合预测方法,该法能够综合利用不同预测方法提供的信息提高预测精度。结合厦门市1996～2008年的垃圾产量,分析不同预测方法的预测精度,并预测5年后的垃圾产量。通过研究发现:单一预测模型中,线性回归法和年增长率法的预测结果偏小,误差较大,灰色理论GM(1,1)的预测结果偏大,误差较小,基本在10%以内;组合预测模型的预测精度高于单一预测模型;厦门市城市生活垃圾年平均增长率约为10%,低于国民生产总值和社会消费品零售总额年平均增长率,高于城镇居民消费性支出年平均增长率。     

课程改革与政策生态之关联-基于我国基础教育新课程改革的分析

本文以我国基础教育第八次课程改革政策的衍生与发展为例,将课程改革政策同具体时空情境下政策生态的四个切面相关联,探讨课程改革政策同经济生态、政治生态、社会生态和教育生态之间的投射性与建构性关系,即政策的发生发展一方面反映政策生态的现实价值导向,另一方面则通过政策生成进行自我表达与建构。本文旨在理解课程改革政策作为反映与建构现实世界的特定方式及其超越理论、政策或实践范畴的深层次内涵与意蕴。     

新工科背景下机器人工程专业教学模式探索

随着我国智能制造业的快速发展,机器人产业也快速增长,社会急需大量的机器人工程专业人才,机器人学科作为一门新工科,其相关专业的人才培养模式还在不断摸索中。传统的教学模式已不能满足新工科的内涵和发展要求。因此,本文以产业需求为导向,分析了当前机器人工程专业在人才培养过程中存在的问题,并结合自身的实践项目和教学经验,为高校机器人工程专业人才培养提出建议。     

学科交叉人才培养途径的探索与实践——以机器人学科为例

随着科技的快速发展和新兴学科的不断涌现,未来科技的发展越来越需要复合型的创新人才。因此,培养学科交叉型人才已成为研究生教育的重要内容之一,本文分析了机器人学科的特点与优势,从研究生导师、学生、政策以及培养模式等几个方面着手,对研究生学科交叉型人才培养途径进行了详细的探讨,为高校学科交叉型人才培养提供参考与建议。     

领域学习模型研究述评

学习理论是近年学校教育和教学关注的基本理论问题,它涉及到学生的学和教师的教.而领域学习模型是西方近20年来学科学习研究的最新成就,它主要是对不同学科专业学习心理的理论探讨.本文着重论述了该模型的主要内容及其特征并探讨了未来研究的方向,针对目前教学现状讨论了该模型对学科教学实践的启示,以期促进大学专业教学.     

方寸间点燃奥运激情——中外邮坛同庆北京奥运会

2008年8月8日至24日,举世瞩目的第29届奥林匹克运动会将在北京隆重举行.随着北京奥运会开幕的日益临近,从中国到世界各国邮政纷纷发行邮票,其势如星火燎原,汇合成普天同庆北京奥运的热烈景象.现撷取中外已经发行邮票的一些画面呈献给读者,共同感受"同一个世界,同一个梦想"的喜悦与激情.……     

Changes in running economy following downhill running

In this study, we examined the time course of changes in running economy following a 30-min downhill (-15%) run at 70% peak aerobic power (VO2peak). Ten young men performed level running at 65, 75, and 85% VO2peak (5 min for each intensity) before, immediately after, and 1 - 5 days after the downhill run, at which times oxygen consumption (VO2), minute ventilation, the respiratory exchange ratio (RER), heart rate, ratings of perceived exertion (RPE), and blood lactate concentration were measured. Stride length, stride frequency, and range of motion of the ankle, knee, and hip joints during the level runs were analysed using high-speed (120-Hz) video images. Downhill running induced reductions (7 - 21%, P < 0.05) in maximal isometric strength of the knee extensors, three- to six-fold increases in plasma creatine kinase activity and myoglobin concentration, and muscle soreness for 4 days after the downhill run. Oxygen consumption increased (4 - 7%, P < 0.05) immediately to 3 days after downhill running. There were also increases (P < 0.05) in heart rate, minute ventilation, RER, RPE, blood lactate concentration, and stride frequency, as well as reductions in stride length and range of motion of the ankle and knee. The results suggest that changes in running form and compromised muscle function due to muscle damage contribute to the reduction in running economy for 3 days after downhill running.     

浅谈云计算及其发展现状

云计算是基于多种技术的商业计算模型,将是21世纪的一种发展趋势,本文主要介绍了云计算的概念、特点、实现机制、提供的服务以及目前国内外的研究发展现状。