在教育实践中读《童年的秘密》，感受蒙台梭利的教育观

“儿童是成人之父”和“营造适宜的,而且是属于儿童的环境”是《童年的秘密》不断呼吁的观点,该观点引带的成人角色,到底是什么样子？这本书静态的呼吁在实践中如何应用起来？这些思考都鞭策我去教育实践中寻找答案,在一个非正规的游戏小组中,笔者读《童年的秘密》收获了一条“放权给责任”的秘密。     

公众要素预报实习中温度预报技术探讨

温度预报是公众要素预报的难点,为了更好地让学生完成这部分实习内容,本文在分析目前气象部门温度预报方法的基础上,对授课重点逐一剖析,力求在有限实习时间内,使学生全面、准确地掌握温度预报技术的要领,提高学生温度预报准确率,从而达到优化实习内容和实习方式的目的。     

中外男子篮球组织后卫传球技术运用对比分析

运用录像观察法、数理统计法等,对伦敦奥运会的中外男篮主力组织后卫的传球技术运用进行比较分析。结果显示:中国组织后卫在传球方式上运用的次数与国外组织后卫有明显的差距;在传球状态上,移动传球次数和跳起传球次数上均落后于国外组织后卫,两者有一定的差距;在传球路线上,直线传球次数落后于国外组织后卫,两者存在较大差距;中国组织后卫在解围性传球次数、攻击性传球次数和助攻次数上均落后于国外组织后卫,但中国组织后卫传球失误较少。     

Skating mechanics of change-of-direction manoeuvres in ice hockey players

Ice hockey requires rapid transitions between skating trajectories to effectively navigate about the ice surface. Player performance relates in large part to effective change-of-direction manoeuvres, but little is known about how those skills are performed mechanically and the effect of equipment design on them. The purpose of this study was to observe the kinetics involved in those manoeuvres as well as to compare whether kinetic differences may result between two skate models of varying ankle mobility. Eight subjects with competitive ice hockey playing experience performed rapid lateral (90°) left and right change-of-direction manoeuvres. Kinetic data were collected using force strain gauge transducers on the blade holders of the skates. Significantly greater forces were applied by the outside skate (50–70% body weight, %BW) in comparison to the inside skate (12–24%BW, p < 0.05). Skate model and turn direction had no main effect, though significant mixed interactions between leg side (inside/outside) with skate model or turn direction (p < 0.05) were observed, with a trend for left-turn dominance. This study demonstrates the asymmetric dynamic behaviour inherent in skating change-of-direction tasks.     

‘Tracksuit Traitors’: Eastern German Top Athletes on the Run

In the time between its founding and the fall of the wall in November 1989, more than three million people left the German Democratic Republic, many of them illegally and under dangerous circumstances. The party leadership perceived this mass exodus of its citizens as one of the major threats for the real socialist regime.1^?1. Bispinck Bispinck, Henrick. “Republikflucht. Flucht und Ausreise als Problem der DDR-Führung.” Vor dem Mauerbau. Politik und Gesellschaft der DDR in den Fünfziger Jahren, edited by MichaelSchwartz and Hermann Wentker, 285–309. München: Oldenbourg Wissenschaftsverlag, 2003. [Google Scholar], “Republikflucht.”‘Republikflucht’, as this move from East to West was called by the party leadership, was the reason for the two most important hiatuses in Eastern German history: the first result was that the SED leadership built the wall in August 1961. Many years later, in the fall of 1989, the situation culminated, when a flood of desperate refugees tried to escape to the Federal Republic of Germany via Hungary, Poland and Czechoslovakia, thus effectively hurrying along the regime's demise. The world of sports, too, was considerably affected by this phenomenon. The following essay shall offer a short historical summary of the different reasons and routes Eastern German top athletes chose for their escape. Examples from various decades show that in spite of individual circumstances certain similarities in pattern can be made out, especially in respect to the way the government dealt with these cases of ‘treason’.     

论数学中创造思维的培养

数学是自然科学中的基础学科,在数学教学中培养学生的创造性思维,创新学习方法是非常必要的。     

大同市地裂缝分布及防灾对策

地裂缝是地下断裂构造在地表土层形成的痕迹,地裂缝灾害造成严重经济损失和社会影响。本文对大同市地裂缝的现状、危害情况、基本特征及成因进行了分析,并提出防灾对策。     

散打发展融合论——武术散打流变历程考略

武术散打是新中国成立后,在积极吸收西方体育思想的基础上中外融合的产物。它包括竞技武术散打和商业武术散打两种样式。纵观武术散打的发展历程,我们可以将它分为四个发展阶段、三次加速、两个徘徊期。武术散打的四个发展阶段又可视做两次融合:第一次是自身的积淀、融合;第二次是中外(主要是中西)的融合,迄今为止,这种中外融合共发生了三次。三次中外融合依次递进,武术散打可以说是中外体育思想融合的高级阶段,并将预示着进一步发展的方向。     

试析现代奥运会的商业化问题

现代奥林匹克运动会的商业化是当代国际体育的一个重要的社会现象,本文从当代世界经济的背景、大众传播媒介特别是电视网络迅速发展、跨国公司的崛起,以及70年代中期西方世界严重的经济危机等几个方面分析了导致奥运会商业化的主要原因。商业化既给奥运会提供了坚实的经济基础,促进了它的发展,又干扰了奥林匹克竞技运动的正常状态,与奥林匹克理想发展有正反两方面的作用。