Primary school children's health-enhancing physical activity patterns: the school as a significant environment?

The moderate-to-vigorous physical activity (MVPA) of 70 children (age 8.6 years; 40 boys) was measured and gender and age differences were compared. Boys spent 28 minutes per day more than girls in MVPA (p=0.02, d=0.54), and younger children accumulated 24 minutes more MVPA than older peers (p=0.0001, d=0.91). Similar gender and age-related trends were apparent during segmented periods of the day. The majority of daily MVPA was accrued during school-related time (56.4±9.1%; p=0.0001, d=1.57). The findings reinforce the significance of schools as key environments for MVPA participation and promotion.     

Interpreting examiners' annotations on examination papers: a sociocultural analysis

In Ireland and the UK it is accepted practice that agencies with formal responsibility for delivering school examinations allow examination candidates, and in many cases their teachers, to see their examination papers once they have been marked. Returned papers can carry various pieces of information; as well as the total score given for a performance, additional information is included in the form of the annotations left on the examination paper by the marking examiner. As far as we know there has been no research into how this information affects those who come into contact with it. The study uses teacher interview and survey data to explore whether a sociocultural approach to analysis can illuminate the factors that might influence their interpretation of those annotations. These analyses suggest that a key influence on the valid interpretation of an examiner's annotations is a teachers' involvement in examining activity. The analyses support further conceptualisation that these teacher-examiners' interpretative capacity is related to their positioning in a boundary zone between two different activity systems.     

体育运动有助于智力发展和记忆力的提高

体育运动能促进入的大脑发育,可使记忆的物质基础发生变化,提高大脑的工作效率。经常进行体育活动能促进智力的发展,增强人的记忆力,延缓大脑衰老。     

大众锻炼活动决定因素的国外研究进展

阐述了国外关于锻炼及身体活动的决定因素,为进一步探索适合我国情况的锻炼干预策略、推动我国大众体育锻炼推广提供有效的途径。     

论娱乐性身体活动在全民健身中的作用

根据全民健身的需要,结合现代休闲的概念和理论,通过对娱乐性身体活动的特点的讨论分析,阐述了娱乐性身体活动及其在全民健身中的作用,认为娱乐性身体活动理应成为人们全民健身最佳的活动方式之一。     

基于综合信息模型的太阳活动预测方法*

利用基于地磁活动指标型信息的统计先验类方法预测太阳活动周期峰值,是一种实用、有效的方法,但是利用此方法在对个别太阳活动周期的预测中出现较大误差,特别地,在对目前所处的第23太阳活动周期的预测中,误差超过30%。本文提出了利用多种信息综合预测太阳活动周期峰值的新方法,仿真实验表明,与基于地磁指标型信息的统计先验类方法比较,该新方法具有更好的适应性和稳定性,在对第23太阳活动周期的预测中,平均误差为10%。     

走进阳光体育 推进学校群众体育的建设——论高职院校群众体育活动的开展

群众体育活动是我国体育工作的重要任务,是党和国家发展体育事业的要重组成部份。学校群众体育工作是全民体育的基础,提高全民体质必须要做好学校的群众体育工作。而大学阶段是学生生长发育和个性形成的重要时期,是学生在校学习的最后一站,是学生从学校体育走向社会体育的转折点,是奠定学生终身体育思想的重要阶段。做好高校群众体育工作,将对全民健身战略目标的实现起到积极的促进作用。     

我国健身气功站点与瑜伽俱乐部的比较研究

以北京市健身气功站点和瑜伽俱乐部为研究对象,运用文献资料法、问卷调查法及数据统计法对二者的组织性质、教学者和习练者进行比较研究。结果显示:1)健身气功站点属于政府管理型体育组织,以福利型事业模式推广;教学者有严格的师资认证,为义务教学;习练者多为年龄较大、文化程度较低、收入较低的离、退休人群;健身气功功法内容科学、合理。2)瑜伽俱乐部属于市场主导型体育组织;教学者没有统一的师资认证,为有偿服务;习练者多为文化程度较高、收入较高的中青年女性;教学内容多为俱乐部或教师自己制定,缺乏科学性、标准性。     

心理因素在歌唱中的作用

歌唱的心理因素与其歌唱表现行为有着密不可分的关系.在我们的歌唱活动和歌唱教学过程中,人们往往比较注重歇唱本身的表现技巧和演唱技能的训练,而容易忽视另外一个重要的问题,那就是心理因素在歌唱中的作用和影响.歌唱是歌唱者歌唱能力的综合体现,它不仅需要熟练的演唱技巧,还需要良好的心理素质作为保障.     

个人信息管理行为研究

本文阐述了个人信息管理的发展历程.对PIM及其相关概念进行了分析,以用户对信息的需求为中心.总结出人们进行PIM行为的三个基本过程--信息发现/再现行为、信息保持行为、元行为:描述了用户在进行这些活动时所面临的困难,为用户PIM三大行为过程的后续研究提供参考.