Colorado longitudinal twin study of reading disability

The primary objectives of the present study are to introduce the Colorado Longitudinal Twin Study of Reading Disability, the first longitudinal twin study in which subjects have been specifically selected for having a history of reading difficulties, and to present some initial assessments of the stability of reading performance and cognitive abilities in this sample. Preliminary examination of the test scores of 124 twins with a history of reading difficulties and 154 twins with no history of reading difficulties indicates that over the 5- to 6-year interval between assessments, cognitive and reading performance are highly stable. As a group, those subjects with a history of reading difficulties had substantial deficits relative to control subjects on all measures at initial assessment, and significant deficits remained at follow-up. The stability noted for all cognitive and achievement measures was highest for a composite measure of reading, whose average stability correlation across groups was 0.80. Results of preliminary behavior genetic analyses for this measure indicated that shared genetic influences accounted for 86% and 49% of the phenotypic correlations between the two assessments for twin pairs with and without reading difficulties, respectively. In addition, genetic correlations reached unity for both groups, suggesting that the same genetic influences are manifested at both time points.     

NBA与CBA管理体制比较之研究

通过对NBA与CBA管理体制的比较研究，总结出NBA职业篮球管理体制的优势与CBA在管理体制上存在的问题，同时提出CBA当前面临的主要问题和发展联赛的几点建议。     

表象意识在竞技体操教学与训练中的应用

有效的教学方法是教师使学生顺利掌握体操技术动作和获得体操知识技能的关键和保征。通过研究认为：通过加强表象意识的练习，能提高体操教学的效果，并能延缓动作技能的退化和消失。     

The Development of the Concept of Work: A Case where History Can Inform Pedagogy

An historical analysis of the work concept with particular emphasis given to the contributions of John Smeaton and Daniel Bernouilli is provided with a view to enlightening or resolving current difficulties experienced in the teaching and learning of the concept of work and its relationship to kinetic and potential energies. An approach which emphasises the work done by both applied and resisting forces and which gives some technological significance to the (force x distance) definition of work is recommended.     

逸夫先生与高校图书馆

逸夫先生与高校图书馆德明香港邵逸夫先生是一位成功的实业界人士，六十多年来致力于电影事业。作为一个成功的企业家，他积累了几十年创业的经验，认识到兴国必须重教。所以他以拳拳赤子之心，从１９８５年开始，每年都出巨资捐助内地的科教事业。为早出人才，多出人才，...     

超等长式俯卧撑练习对推铅球技术和成绩的影响

为解决普体铅球课进行身体训练受学校场地、器材设备限制的困难，选用超等长式俯卧撑练习作为训练手段，通过实验与对照的方法，发现超等长式俯卧撑练习可有效地挖掘学生自身爆发力的潜在素质，迅速提高铅球成绩，并对推铅球最后用力出手时易产生的“掉肘”错误动作有明显的纠正作用。     

对我国篮球中锋队员身体对抗接触的初步研究

现代篮球运动发展迅速、比赛紧张激烈，技术特点是：快速、准确、对抗性强。特别是持球队员无论是运球突破，还是投篮，都必须在身体对抗的情况下完成动作。不敢对抗、不能对抗的技术，根本不能适应现代篮球比赛的需要。身体接触性对抗是篮球运动诸多因素中的主要矛盾。针对中锋在比赛中的特殊地位和重要职责，对现代优秀中锋进攻特点加以研究，为今后中锋教学和训练提供参考。     

焦虑现象对"技术练习"效果影响的实验研究

通过排球技术与对不同练习氛围中的焦虑现象进行实验研究与探讨,表明练习者的状态焦虑水平对练习效果影响较大.     

十项全能运动成绩的动态变化趋势外推预测研究

依据第七届全国大学生田径锦标赛男子 B组十项全能比赛资料 ,运用较为科学合理的方法 ,建立十项全能多元回归预测模型。运用此模型不仅对我国大学生运动员 ,而且对中外优秀十项全能运动员的各单项运动成绩的动态变化趋势外推的预测值与实际值呈高度相关、准确性高且无差异性