第29届北京奥运会世界田坛的竞争格局

运用文献资料、数理统计与逻辑归纳等方法,对第29届奥运会田径比赛获奖牌成绩进行统计分析,揭示当今世界田坛实力格局和优势项群的地域归属,并总结本届奥运会世界田坛格局的特点,借以分析世界田径运动的发展趋势.     

职业技术学院女子健美操课教学探讨

由于个体素质、生理的差异,女生成为健美操教学的主要群体。因此,了解女生的特点,认识女生的自我效能及对她们自我效能的培养,成为提高女子健美操课教学质量的重要途径。     

论截拳道之武术观

文章从截拳道的技击思想、技击原则两个方面对其技击艺术进行了探讨,进而以此技击艺术来对照武术动作的练习,以期为习练武术者在练习武术方面提供一定的借鉴。     

企业异质性、地区发展战略与资源错配——来自中国工业企业层面的经验证据

资源错配的成因主要源自不同维度的企业异质性和地区发展战略的扭曲.采用“中国工业企业数据库”数据,利用C-D确定性前沿参数模型测算微观企业全要素生产率,并用OP协方差法对各地区资源错配程度进行测度,进而从微观企业异质性和地区发展战略两个层面分析我国资源错配的成因,结果表明:企业TFP异质性主要与其市场结构(垄断及规模经济)、所处地区(城市和省份)以及所有制等维度的差异有关;地方政府违背比较优势的发展战略加剧了资源错配程度,造成各地区15.0％～52.7％的资源配置效率损失、12.8％ ～45.1％的全要素生产率损失以及2.4％～8.5％的产出损失.未来中国全要素生产率的提升,应注重内部竞争优化,同时要发挥政府因势利导的职能.     

"肉牛-蘑菇-炭"秸秆综合利用"生态单元"设计

为了提高秸秆的资源化利用率,遴选出养牛、种菇和制炭三个有关联的秸秆利用方式,构成循环产业链,根据产业链中消耗的秸秆原料数量确定秸秆供应的农户区面积,使秸秆的产生和资源化利用产销平衡,构成一个"生态单元"."生态单元"由生产中心和农户区两部分组成.生产中心收购农户区的秸秆作为原料,养殖肉牛、种植蘑菇和制炭.养牛、种菇和制炭三个产业环环相扣,并与农业生产形成良性生态链:制炭余热用于菇房加温,牛粪作为种菇培养料,尿液制沼气,沼渣、沼液与蘑菇下脚料还田.按照普通标准确定种菇规模,由种菇需要的牛粪量确定肉牛养殖数量,种菇和养牛剩下的秸秆用来制炭,制炭规模由农户区产生秸秆的数量决定.     

运动员赛前心理波动的防控——以摔跤为例

对抗性项目运动是人与人直接接触,对抗性激烈,竞争性强,比赛中既有力量的较量也有智慧的相争,具备良好的心理状态,是在大型比赛中取得优异成绩的关键因素,要想夺取全国冠军、亚洲冠军和在世界级比赛中取得好的运动成绩,靠实力,但也靠良好的心理状态来促进体、技战术水平,身体素质潜力的充分发挥.通过实际例子说明优秀运动员心理水平在比赛中的重要性,提出比赛环境、比赛对手和比赛的胜负是运动员赛前心理变化和情绪波动的影响因素;总结出加强理论学习和思想教育?教学比赛和实战?观看比赛和训练录像?音乐放松?赛前心理的动员等方法和手段,旨在保证运动员在比赛中发挥水平,打出好成绩,实现赛前预定的比赛任务和指标.     

Li Boqian： Ambitious but Down-to-earth in Archaeology

Like many other eminent professors of Peking University, Li Boqian looks humble and kind, bearing the precise and earnest nature as a scholar. He is plainly dressed and modestly behaved, but once on the rostrum, he is so full of passion that you can hardly believe he is already 75 years old. On the occasion of the 90th anniversary of the ArchaeoLogy Department of Peking University, Li received the interview by PKU News.     

A New Chapter for the Ancient Silk Road 2012 Year of Chinese Culture in Turkey

<正>Opened on December 12, 2011 and after 365 days, the 2012 Year of Chinese Culture in Turkey is closed as a full success on December 04, 2012. Various events during the Year are like a strong "Chinese wind"blowing across dozens of Turkish cities. According to statistics from the Culture Section of the Embassy of China in Turkey, during the Year,     

Historic County of Yuxian

County has played an important role in the history of China since it was first established as a basic administrative unit in the Qin Dynasty more than 2,000 years ago. Historic counties have not only performed administrative and economic functions but also carried and preserved basic information about culture and traditions of China. Not long ago, the Photographic Exhibition on the Cultural Heritage of Historic Counties of China, organized by China Cultural Relics Protection Foundation in partnership with the Palace Museum and China Institute of Toponymy, was held at     

Linqing:a Historic County of China

<正>County has played an important role in the history of China since it was first established as a basic administrative unit in the Qin Dynasty more than 2,000 ...