田径教学课件制作初探

在全球科技日新月异的今天，信息技术在教学中得到了广泛运用，使教学条件得到了极大的改善。多媒体技术的引入，在体育田径项目的教学中开辟了田径运动教学的新领域。运用文献资料法结合多媒体操作经验．指出田径教学课件应包含的内容及对田径教学质量提高的重要意义。     

运动服装发展的社会学分析

本文主要采用文献资料法 ,初步探讨了运动服装的发展历史 ,揭示了社会的发展对运动服装改革的推动作用 ,分析了运动服装与色彩图案、运动服装与科技文化之间的关系 ,在此基础上预测了运动服装消费的新趋势。     

对中专学生"孝心"教育的实践与思考

热爱和孝敬父母是我国传统道德的起码要求，但中专学生在这方面的认识和表现令人失望和担忧。本文主要就如何加强中专生的“孝心”教育谈几点建议。     

软式排球与高校女生体育

软式排球是新兴的体育项目，它具有场地随意、规则多变、伤害事故少、趣味性高、老少皆宜的特点。它非常适合高校女生的生理、心理特点，经试点后深受高校女生喜爱。从事此项活动既能增强高校女生体质，又能为我国排球运动培养大批后备力量和热情观众，应在高校女生体育教学中大力推广和普及这项活动。     

少年跨栏运动员训练监控研究初探

训练监控通过运动训练的进行来体现其作用和价值。业余少年跨栏运动员的监控应是多方面的,但重点是心肺功能、营养和训练负荷。     

体育教学中教育生命机制的认识理念

从人的生命活动的实际需要出发,分析了人的精神生命活动特点,并指出体育教学的实现就是基于人的生命活动。通过分析目前高校体育教学存在的弊端,提出了有利于人的精神生命活动的体育教学改革基本思路。     

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.     

浅谈无机化学中元素部分的教学

本文针对学生学习无机化学中元素部分的难点,探讨了在教学过程中应用无机化学理论对元素学习进行指导、适时进行归纳总结、通过实验操作加强对知识的巩固等问题。     

绿色壁垒:我国农产品出口亟待逾越的屏障

加入WTO以来,由于国外"绿色壁垒"的阻碍,我国农产品出口损失很大.本文揭示了"绿色壁垒"的种种表现及产生的原因,并提出攻克"绿色壁垒"的建议及对策.     

世界新闻通史体系刍议

本文归纳了已有外国新闻史研究的四种模式 ,并指陈其利弊。在此基础上 ,提出建立世界新闻通史体系的治学观点———空间上 ,能涵盖中外 ,以整个世界新闻传播全局为对象 ;时间上应古今贯通 ;研究对象上应涉及新闻事业、新闻制度和新闻观念