等离子体的诊断方法

文章对等离子体诊断的常用方法及适用范围作了介绍，并认为对任何能反映等离子体性质的物理量的测量方法，都可以作为等离子体诊断的方法。     

Let Our Souls Keep Up With Our Pace

The National Museum witnessed record visitors during the na- tional holiday. The deputy cu-rator, Chen Lvsheng, is excited to see such a change. He looks forward to one day when public cultural spaces like museums and galleries would become a city＇s living room tot guests, and a life- time classroom for every person. None- theless, Chen is not expecting quick re- suits, because “ cultural development requires time and education”.     

“弱水”与“昆仑山”

<正>鲁迅在杂文《热风·随感录六十二恨恨而死》中写道,对于那些一味愤愤不平、自暴自弃以致"恨恨而死"的人们,"应该趁他们活着的时候问他:诸公!您知道北京离昆仑山几里,弱水去黄河几丈     

孩子的来历与归属——神话传说背后的上古风习

一女娲是中国古代最著名的女神之一,其神奇之处一是治水,二是补天,三是造人。她的造人完全自力更生,无须外力,乃是典型的＂孤雌生殖＂。《太平御览》卷七十八引《风俗通》云：     

拓展训练在竞技运动领域中应用的研究综述

采用文献资料法,探讨拓展训练在竞技运动领域的研究现状,分析已有研究成果和不足,探索拓展训练的价值和适用范围,以期为拓展训练在运动领域的进一步普及指明方向,奠定理论基础。     

Shoe drop reduction influences the lower limb biomechanics of children tennis players during an open stance forehand: A longitudinal study

Compared to traditional tennis shoes, using 0-drop shoes was shown to induce an immediate switch from rear- to forefoot strike pattern to perform an open stance tennis forehand for 30% of children tennis players. The purpose of the study was to examine the long-term effects of a gradual reduction in the shoe drop on the biomechanics of children tennis players performing open stance forehands. Thirty children tennis players participated in 2 laboratory biomechanical test sessions (intermediate: +4 months and final: +8 months) after an inclusion visit where they were randomly assigned to control (CON) or experimental (EXP) group. CON received 12-mm-drop shoes twice, whereas EXP received 8?mm then 4-mm-drop shoes. Strike index indicated that all CON were rearfoot strikers in intermediate and final test sessions. All EXP were rearfoot strikers in intermediate test session, but half the group switched towards a forefoot strike pattern in final test session. This switch resulted in a decreased loading rate of the ground reaction force (?73%, p?=?.005) but increased peak ankle plantarflexors moment (+47%, p?=?.050) and peak ankle power absorption (+107%, p?=?.005) for these participants compared with CON. Biomechanical changes associated with the long-term use of partial minimalist shoes suggest a reduction in heel compressive forces but an increase in Achilles tendon tensile forces.     

“放焰口”与盂兰盆节

鲁迅在《我的第一个师傅》一文中幽默地写到他“最初的先生”——绍兴长庆寺住持龙师父其人,说他平时很和气,也不念经,只有到了“穿起袈裟来做大和尚,或者戴上毗卢帽放焰口,‘无祀孤魂,来受甘露味’的时候”,才是“庄严透顶”的。     

对我国教育产业化发展的对策探讨

我国教育产业化发展,要先转变办教育的观念;改革教育发展单一投资的体制,形成多元投资的体制;教育发展要走产业化的道路;进一步开放留学生教育市场;积极发展民办教育,大幅度提高国家财富总增量;调整教育政策,正确引导有受教育需求者的教育投资方向,增大学生自由选择就读的学校、专业和教师。     

我国单板U型场地滑雪运动员运动损伤研究

运用文献资料法、访谈法、问卷调查法和统计分析等方法对单板U型场地滑雪运动员的损伤情况进行流行病学调查。结果发现创伤呈多发性,发病部位集中于膝、腰、臀、踝和前臂。运动损伤与专项训练关系密切,保护措施不够、缺乏运动损伤知识、场地和天气原因是造成运动损伤的前三位因素。损伤以扭伤、骨折、挫伤等急性损伤为主。提示该运动是一个难度大,危险性高,损伤治疗困难,对训练影响大的项目。建议在今后的训练中加强对损伤的防范意识;充分做好训练前的准备活动和训练后的疲劳恢复,控制训练节奏和负荷量,防止过度疲劳;强化易损伤部位的肌肉力量训练;注意检查、修缮场地,从而保证训练、比赛的正常进行。