高校乒乓球教学中专项意识的培养

乒乓球的专项意识不是自发产生的 ,它是在大量的练习和比赛中获得的。学生在练习中不受正确的意识指导 ,就会受错误的意识支配。教师在教学中应注重对学生进行乒乓球专项意识的培养 ,加速运动技能的形成。     

浅谈发行体育彩票产生的双重效应

运用献资料的方法从正、负两方面探讨了我国发行体育彩票产生的效应。体育彩票的发行为我国体育事业带来了活力，但同时在发展过程中也带来了负效应。应该以利除弊，以保障体育彩票产业的健康发展。     

竞走运动员运动训练计划管理系统的设计与开发

在问卷调查、专家访谈及对竞走运动训练系统分析的基础上，按照软件工程的要求，设计并开发了竞走运动训练计划管理系统。系统综合集成了预测、评价、规划、统计、决策模型和竞走运动员各种竞技能力模型，实现了信息处理的科学化、自动化和运动训练人机一体化，从而为竞走运动训练计划的科学化管理和实施提供了强有力的决策支持。     

足球竞赛规则演变浅析

足球规则的产生可追溯到我国古代，其产生和发展对现代足球有着重要影响。本文通过对现代足球规则演变的分析，揭示足球竞赛规则修改、补充的内涵及其对足球运动发展所起到的推动作用。     

近代竞技运动发轫于英国的背景解读

产业革命以后 ,随着机械在产业方面所占的比重急剧上升 ,有关人们身体的运动 ,在英国大众的生活中成了基本的要求。本文从英国民族心理特性、产业社会生活方式、政治制度和自然条件等角度 ,探索了奠定英国近代竞技运动发轫的历史轨迹     

愉悦课堂氛围激发学习兴趣

兴趣是影响学习效果的重要因素，在体育课堂教学中，教师要善于创设愉悦的课堂氛围，以激发学生的学习兴趣，让学生在乐中学，学中练，取得良好的学习效果。     

POLITICAL VIEWS OF THE RUSSIAN PEOPLE

The emerging political consciousness of the Russian people isanalyzed against a background of severe constraints in the Sovietera on public opinion formation. Problems in the transitionto democracy and representative government are reflected inheightened interest in politics, volatile levels of confidencein key political institutions, and deep uncertainty about thefuture in both economic and political terms.     

Environmentally-induced stone decay: the cumulative effects of crystallization–hydration cycles on a Lincolnshire oopelsparite limestone

An investigation has been undertaken at St Andrew’s church, Walpole St Andrew, Norfolk, to establish the underlying causes of the observed stone decay to the upper parts of the six stone piers. The stone decay was first recorded in the early 1930s. The salt-contaminated masonry within the church has been shown to undergo severe salt decay during the summer, with little damage occurring over the winter months. The south aisle piers have been shown to decay 2.5 times faster than the north aisle piers. Although crystallization–hydration cycles have been identified, the rate of decay is at its greatest when the cycling is relatively infrequent. This was not the expected trend. Furthermore, it has been shown that during extended periods where the ambient relative humidity is less than 75%, the rate of decay reaches a maximum. It is the length of this ‘drying’ period that apparently has the greatest influence on the rate of decay and could explain the significant difference in the rate of decay between the south and north aisle piers. The results have serious implications for passive conservation, where it is often recommended to lower the ambient relative humidity to well below the equilibrium relative humidity of the salt contaminant, to avoid crystallization–hydration cycles. Since, at the time of building, the church was situated on the coast, it is possible that the sodium chloride contamination occurred during the building process (1440–1520), particularly since the area was prone to sea-flooding at this time. Alternatively, the salt could have been applied as a treatment during the general restoration of 1897. Whatever the source of the salt, it seems likely that the ambient environment was changed by the insertion of a sealed floor in 1897, which could account for the onset of the salt decay.     

赛艇运动的项目特性及训练指导思想

通过对赛艇运动项目决定成绩的因素,如供能系统、专项素质、生理特性的分析,确定了赛艇运动的特性及规律,并据此特性科学地提出了该项目的训练指导思想.