从对蹬冰加速理论的质疑点看克莱普冰刀的设计构想

从对蹬冰加速理论的质疑点角度，探讨了克莱普冰刀的设计构想。结果表明，克莱普冰刀的设计思想不仅仅是延长了蹬冰时间、提高了踩关节的灵活性、加大了蹬冰腿膝关节的伸展范围、保持了城关节的平稳移动，更重要的意义在于揭示重心沿滑行方向上的前移作用。它改变了以往人们对加速理论中，只有在与滑行方向水平面内相垂直的蹬冰力才对加速起贡献作用的传统认识，暗示出在滑行方向上切向和法向速度均对重心的加速起作用的观点。     

我国体育产业统计指标体系及其统计方法的研究

运用产业经济学原理对国内外体育产业的发展现状进行了分析，认为我国必须建立体育产业统计指标体系。在吸收和借鉴其他产业部门统计指标体系以及西方发达国家同类研究经验的基础上，提出我国体育产业统计指标体系及统计方法。     

运动员人格特征与运动损伤关系研究中的研究设计与变量选择

综合国内外有关文献，就运动员人格特征与运动损伤关系研究中的研究设计与变量选择进行了分析与探讨，指出在进一步的研究中，应将人格变量置于一个多变量影响的系统中，探讨其对运动损伤发生的影响，着重关注人格特征作为中间变量的影响效应；在对损伤变量进行考察时，要关注的是损伤测量的客观性、精确性和敏感性。此外，还应对慢性运动损伤与运动损伤发生关系予以关注。     

The reliability of distance run tests for children in grades K-4.

The purpose of this study was to determine test-retest reliability for the 1-mile, 3/4-mile, and 1/2-mile distance run/alk tests for children in Grades K-4. Fifty-one intact physical education classes were randomly assigned to one of the three distance run conditions. A total of 1,229 (621 boys, 608 girls) completed the test-retests in the fall (October), with 1,050 of these students (543 boys, 507 girls) repeating the tests in the spring (May). Results indicated that the 1-mile run/walk distance, as recommended for young children in most national test batteries, has acceptable intraclass reliability (.83 less than R less than .90) for both boys and girls in Grades 3 and 4, has minimal (fall) to acceptable (spring) reliability for Grade 2 students (.70 less than R less than .83), but is not reliable for children in Grades K and 1 (.34 less than R less than .56). The 1/2 mile was the only distance meeting minimal reliability standards for boys and girls in Grades K and 1 (.73 less than R less than .82). Results also indicated that reliability estimates remained fairly stable across gender and age groups from the fall to spring testing periods, with the exception of the noticeably improved values for Grade 2 students on the 1-mile run/walk test. Criterion-referenced reliability (P, percent agreement) was also estimated relative to Physical Best and Fitnessgram run/walk standards. Reliability coefficients for all age group standards were acceptable to high (.70 less than P less than .95), except for Fitnessgram standards for 5-year-old girls on the 1-mile test for both fall and spring and for 6-year-old boys and girls on the 1-mile test administered in the spring.     

计算机情报检索用户培训研究

The training for computer Search users is one of the essential guarantees for the computer information re-trieval to go on smoothly and an important means to gather the latest or fresh information quickly,accurately andcompletely as well.The text makes approaches ro the feasibility of the training of computer search users,evaluatesthe effectiveness of the training and puts forwards factors that exert impacts on the training work concerning infor-mation consciousness,information policies,etc.     

安徽高校图书馆文献资源建设的现状和建议

<正> (一)根据对全省35所高等学校图书馆的调查,安徽省高校图书馆文献资源总体状况可归纳为以下优势和不足:一、优势1.我省高校图书情报事业的发展格局和规模有了一定的基础。目前,全省高校藏书量达1068.38万册,其中中文线装书51.67万册,现刊有3.63万种,过刊7.87万种,并初步形成了各自的藏书特色,文献中教学用书体系形成了专业优势。另外,文献质量不断提高,满足需求的程度持续上升,已具有一定的文献保障水平。     

组合连接创新法在武术套路难度动作创新中的运用研究

采用文献资料研究法,对创新学方法中的组合法在武术套路难度动作创新中的运用进行研究。结果表明:在武术套路难度动作创新中,依据不同的角度对武术动作进行组合创新可以有各种形式,按对象组合连接创新可分为相同组别技术连接创新与不同组别技术连接创新;按原理组合连接创新可分为特性列举组合创新、缺点列举组合创新和希望点列举组合创新。