关于短跑运动员服用甲壳素影响运动能力的研究

观察了我院田径队短跑组运动员服用甲壳素(C hitin)前后,机体在激烈运动后血乳酸浓度、血细胞形态、超氧化物歧化酶及最大摄氧量的变化。实验表明:通过服用甲壳素短跑运动员在运动过程中血乳酸浓度有显著的降低;成熟红细胞形态有更圆润、保满的趋势;最大摄氧量有提高;谷胱甘肽有所升高、乳酸脱氢酶、丙二醛有所下降,运动员的运动能力有所提高。     

International Early Childhood Resources from Educational Research Abstracts (ERA)

The aim was to examine cross-cultural variation in linguistic responsiveness to young children in 10 English-speaking mother–child dyads and 10 Italian-speaking mother– child dyads. All 20 children were late talkers who possessed delays in expressive vocabulary development but age-appropriate cognitive and receptive language skills. Dyads were filmed in 15 minute free play contexts, which were transcribed and coded for measures of maternal linguistic input (e.g. rate, MLU, labels, expansions) and child language productivity (e.g. utterances, different words used). The results revealed that the Italian mothers used more utterances, spoke more quickly and used a more diverse vocabulary than the Canadian mothers. The Italian children mirrored their mothers and also used more utterances and a more diverse vocabulary than the Canadian children. Mothers in both groups used similar percentages of responsive labels and expansions. However, Italian mothers responded to fewer of their children's vocalisations, using a smaller percentage of imitations and interpretations than the Canadian mothers. Correlations between maternal input and children's language productivity revealed that contingent language measures (e.g. imitations, interpretations, expansions) were related to high levels of productivity in children in both cultural groups. The results support the use of language interventions based on increasing maternal responsiveness for these children at the one-word stage of language development. They also point to differences that may be culturally based. For example, Italian mothers use faster rates of interaction and appear to have higher expectations for their children's verbal participation in interaction. This is reflected in higher rates of language production from their children, even though children in both cultural groups have similar vocabulary sizes.     

河南省部分城镇知识分子体育锻炼和健康现状调查

对河南省东西南北中5个地区部分城镇教科人员参加体育活动和身体健康现状进行抽样调查，结果显示：在职的知识分子属于我国“全国健身运动”中的一个弱势群体，身体健康状况较差，积极开展知识分的体育锻炼，增强脑力劳动的体质，有助于我国科教兴国战略决策的实施。     

对新时期体院教师队伍建设的刍议

抓好学院教师队伍的建设,首先要建立在完善有效的人才管理机制上.学院在积极探索新时期组织人事工作创新的途径和形式中,引进招聘、培养开发,造就具有真才实学,适应学院发展的学历达标、结构合理、业务精良、教学严谨的高水平师资队伍.     

对<篮球比赛记录表>中部分登记方法的认识和思考

章就1994年国际篮球联合会和国际篮联世界技术委员会批准执行新的《篮球竞赛规则》以来，对《篮球记录表》中，“要登记的暂停”；“涉及到罚球的任何一种犯规”；“累积分”3种登记方法的实践中，发现了上述3种登记方法与《篮球竞赛规则》有关“时间通则”桐脱节，提出了对上述3种登记方法的认识与思考。     

当代西方公共广播电视体制的基本类型

当代西方诸国公共广播电视经营机构一方面依法独立运行 ,普遍地具有一系列共同的基本特征 ;另一方面由于同社会众基本政治力量结成不同的政治调控关系 ,而形成彼此相异的体制类型 ,主要有国有公营型、国有国会主导型、社会联合公营型和国有政府主导型等。     

高校俱乐部式体育教学对大学生心理健康影响的调查

采用心理学相关量表（精神卫生自评量表SCL－90），对我省部分采用俱乐部式体育教学大学进行心理健康状况的心理测量，并将结果与普通大学生进行了横向比较。结果证明：实施俱乐部式体育教学，对大学生总体健康水平状况好于常规体育教学，特别在“人际关系”、“抑郁”、“焦虑”3项因子上，两组人群存在明显差异。     

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.