X5045在智能低压综合保护装置中的应用

X5045芯片是美国Xicor公司生产的集“看门狗”定时器、电压监控和串行E2PROM三项功能于一体的专用集成芯片。本文介绍了X5045芯片的结构、功能、工作原理以及X5045在智能低压综合保护装置中的应用,给出了X5045芯片与AT89S52单片机的硬件接口电路,编写出相应C51应用程序,并成功应用于低压综合保护装置中,取得了令人满意的效果。     

多媒体语言实验室与视听说教学

多媒体作为一种新型的现代化电教手段,因其比传统教学更富有直观、形象和生动的特点,而在外语教学中得到广泛运用,并收到显著效果.本文主要探讨多媒体语言实验室及其在视听说教学中的运用,以及由此而产生的一些急待解决的矛盾.     

奥运会观战旅游及第29届奥运会旅游状况分析

奥运题材旅游是体育旅游产业的重要内容之一,奥运题材旅游使体育对社会的经济意义有了新的发展和扩展,并形成了奥运会经济的经济拉动效应。以奥运会为题材的奥运旅游,既为奥林匹克事业发展创造了更多发展的经济效益,也使旅游产业的发展前景更为广阔。面对2008年北京奥运会特殊题材的特大发展机遇,探讨如何借奥运促进我国入境旅游经济的进一步发展。     

直东时期义和团众在乡间的演拳活动

传统武术的表演具有日常实用性。大刀会和神拳是义和团的前身,大刀会和神拳起事的地点是直东地区的乡村。大刀会、神拳经常利用请看武戏聚集民众,夸耀武力。直东地区的乡村市场兼有群体性娱乐活动,为游浪武士汇聚提供了场所。晚清的村落庙宇具有团聚同族民众共同祭拜尚武先祖的功能。村落庙宇既有神圣祭祀功能,亦是乡民演示武艺的场域,教民建堂与团众建庙便形成矛盾,而教堂与庙宇的地基就成为义和团和教民冲突的空间性焦点。以乡村演拳和观看武戏为主体性功能的建筑空间构成了大刀会和神拳武力抗教的特殊场所,传统武术显示其具有巫术意味的实用性的同时,也展示出其独特的风俗学的生命力。     

“令人感动,还要让人疼痛”——陈应松小说创作论

陈应松的小说叙事始终围绕人的现实生存困境和超越之路展开,其向死而生的精神主题映射出直面现实的道德立场,既有左翼文学精神的深刻影响,又有存在主义哲学的思想因子。揭去乡土牧歌的温情面纱,还生活在底层者一个挣扎、哀苦、不甘、寻求和质问的真实身份,这是陈应松小说叙事对于当下中国文学的意义。     

加强英语“视听说”教学，提高农村英语师资水平

目前,我国农村中小学英语教学还存在师资力量薄弱、忽视“视听说”教学、教学设备落后等问题。解决这些问题的有效办法之一,是在高师院校英语教学中开展“视听说”教学,努力培养学生的综合应用能力和口语表达能力,提高学生的教学能力、使用先进教学设备的操作技能以及多媒体课件的制作技能,为农村培养高水平的英语师资队伍。     

天台智者关于“恶”的思想及其现实意义

天台智者大师基于大乘佛教立场,提出性具善恶说,把传统上对善恶问题的讨论引向深入。他把恶分为人心先验本具的形上之恶和障碍心灵自由的现实、形下之恶,并提出转化、消除形下之恶的具体方法。探讨这一命题,不仅有学术价值,而且对于社会伦理建设与个人心灵净化也具有现实意义。     

南京市体育观众现场观赛的影响因素分析

采用文献资料法、问卷调查法、统计分析法等对影响南京市各阶层现场体育观赏的因素进行分析,研究发现社会属性、竞赛、声望、运动经历、生活舒适度、观赛舒适度、欢迎度和经济八个影响因子发挥主要作用。综合各因子的特点认为:在吸引和培养观众时需重点考虑对南京中间及以上社会阶层的男性人群的吸引,对比赛级别和明星人物的特别宣传,尽可能给人们制造亲自参加体育活动和观看现场体育比赛的机会,将门票销售和各个生活区的大型超市联合并将主流票价定在100元左右,从南京本地的群众基础较好的运动项目入手组织各类培训和比赛是提高人们现场观赏率的切实有效方法。     

Correlates of Physical Activity Behavior in Rural Youth

Abstract

The purpose of this study was to identify correlates of physical activity behavior in a sample of rural, predominantly African American youth. Three hundred sixty-one fifth-grade students from two rural counties in South Carolina (69% African American, median age = 11 years) completed a questionnaire designed to measure beliefs and social influences regarding physical activity, physical activity self-efficacy, perceived physical activity habits of family members and friends, and access to exercise and fitness equipment at home. After school physical activity and television watching were assessed using the Previous Day Physical Activity Recall (PDPAR). Students were classified as physically active according to a moderate physical activity standard: two or more 30-min blocks at an intensity of 3 METs (metabolic equivalents) or greater, and a vigorous physical activity standard: one or more 30-min blocks at an intensity of 6 METs or greater. According to the moderate physical activity standard, 34.9% of students were classified as low-active. Multivariate analysis revealed age, gender, television watching, and exercise equipment at home to be significant correlates of low activity status. According to the vigorous physical activity standard, 32.1% of the students were classified as low-active. Multivariate analysis revealed age, gender, television watching, and self-efficacy with respect to seeking support for physical activity to be significant correlates of low activity status. In summary, gender and the amount of television watching were found to be the most important correlates of physical activity in rural, predominantly African American youth.     

Watching MOOCs together: investigating co-located MOOC study groups

Research suggests that massive open online course (MOOC) students prefer to study in groups, and that social facilitation within the study groups may render the learning of difficult concepts a pleasing experience. We report on a longitudinal study that investigates how co-located study groups watch and study MOOC videos together. The study was conducted with on-campus flipped classroom students. Our subjects reported an overall high satisfaction with the study group style. The research reveals that students like to stay synchronized in the group while watching MOOC videos. However, they have to find a balance between synchronization, video interaction, and the amount of conversation. Watching MOOCs on a shared display addresses the need of synchronicity, and the distribution of control can increase the video interactivities.