对不同项群运动员运动负荷前后左心室舒张功能的观察

为了评价不同项群运动员左心室舒张功能,对12名耐力项目运动员和12名速度力量项目运动员12min前后二尖瓣血流频谱进行了检测。结果表明:12min跑后耐力组血流速度积分和E/A明显减小,速度力量组血流速度积分、E峰值和E/A减小十分明显,A峰值减小明显,两组运动员血流速度积分、E峰值和E/A存在显著差异。说明,耐力组左心室舒张主动松驰及被动充盈能力均好于速度力量组。     

论“留守学生”的心理特征及教育

文章具体分析了“留守学生”中普遍存在的自理能力差、依赖性强、厌学情绪严重、相互攀比、消极模仿等异常心理行为。同时，提供了以“培训家长”、“建立优良班风”、“搞好个别教育”等有效的教育方法。     

大鼠左心室流出道电生理特性的观察

目的为了观察大鼠左心室流出道组织是否具有自动节律性.方法利用细胞内微电极记录技术,观察了18例大鼠左心室流出道组织的电生理特征.结果16例(88.89%)出现了自律性电活动,并且可在局部组织记录到典型的慢反应动作电位.结论大鼠左心室流出道组织具有自律性.其生理功能有待进一步研究.     

BONAGE超声骨龄测试和X光拍摄两种骨龄检测方法的比较研究

通过判读手掌和手腕骨的X光成像图片来评价青少年骨龄是体育和医学界一直使用的传统方法,长期的实践应用已证明它是行之有效的。但为变革其固有的缺陷对新的评价方法的探索一直没有停止,其中以色列阳光公司研制的BoneAge超声骨龄检测仪利用定量超声原理来评价骨龄,已批量投入市场且已为国内部分省市的体育部门所采用。研究目的:对BoneAge超声检测方法和传统X光拍摄方法进行方法学比较分析,检验新方法的准确性和有效性,以维护骨龄检测的权威性和科学性。研究对象:5-17岁男女青少年322名。研究方法:(1)超声骨龄仪的可重复性试验(实验对象93名);(2)X光片判读结果与超声检测结果的比较。对223名男女青少年拍摄手掌(腕)骨进行X光拍摄后随即使用BonAge超声骨龄检测仪对同批对象进行手腕部超声扫描。将超声骨龄结果与两位专家对X光片盲式读片结果的平均值进行比较分析。研究结果:(1)对超声骨龄仪的可重复性实验结果表明,两次测试的骨龄均值无显著性差异且呈高度相关,提示该仪器总体稳定性良好;(2)对超声骨龄结果与X光骨龄均值比较的显示,无论是区分年龄段还是性别,两种评定结果之间均有较大的系统误差和随机误差,且这种误差随年龄段的增大而有所加大;对年龄段较高的人群,超声检测结果更易高估对象的骨发育程度;单因变量多因素方差分析表明,骨龄评价结果主要受到评定方法和年龄段因素的影响,而与性别因素关系不大;对超声骨龄和X光骨龄的相关程度和直线回归分析表明,尽管总体人群的两种评价结果存在高度相关,直线回归效果较好,但引入年龄段因素后,相关程度明显降低,回归效果较差,提示这两种方法之间不能相互替代。     

The Itinerary to Explore Headwaters of the New Left’s Cultural Studies

Abstract

The 1980s was a period when the academic current for leisure studies led to the birth of the study of sports history. Japan was not a latecomer in this scholarly stream. More significantly, cultural issues were thought not the part of various phenomena in a society, but the key issues for class integration and class strife. After writing my PhD thesis on Pierce Egan, one of the earliest sport journalists influenced by the idea of early radicals in the nineteenth-century Britain, my attention turned over to the question of why the study of sport history was necessary. There was the academic impact inherited from the New Left’s belief that ‘without understanding the state of people’s culture, class issues are unable to be truly comprehended’. The Initiation of sport journalism had a similar destiny. This consequence appears to be a synchroflash between the early radicals’ concern in popular culture in the nineteenth century and the New Left’s interest in cultural studies in the twentieth century. There was an obvious reason why the radical essayists and contemporary academics had to pay attention to the ‘cultural turn’ with critical thinking in a society.     

The state question in Chinese popular cultural studies

Abstract

This note is an attempt to trace the change and continuity of leftist political policies, and to analyse why the Left generally, especially the Malay Left, has not been successful in Malaysian politics. It questions why the Malaysian Left was stafter the Second World War but slowly dissipated until it is almost crippled now. Other than examining the formation and the roles of the Malaysian Left and their struggles for independence, this note also sorts out the factors of the unsuccessful struggles to get wide Malay support for the Malay-dominated Malay Nationalist Party of Malaya (PKMM) and the Chinese-dominated Communist Party of Malaya (CPM).     

论彝文书法章法中行款的发展转变及其标准

彝文书写的行款,在古代就已经形成了从上到下、从左到右的格式.近代以后由于受到巨大的历史变革的影响,偶尔有从上到下、从右到左的形式,但不是主流.近年来,多次比较大型的彝文书法展览和出版的彝文书法选集,绝大多数作品都采取了从上到下、从右到左的形式,背离了传统彝文书法的行款格式,应该从加强传统彝文的学习教育、坚持彝文书法传统的左书标准模式等方面给予及时纠正.     

线性流形上左右逆特征值问题的最小二乘解

利用矩阵的奇异值分解,研究了线性流形上实对称矩阵的左右逆特征值的最小二乘解,得到了最小二乘解的一般表达式.对于给定的矩阵,得到了它的最佳逼近解。     

What Is Measured Is Treasured: The Impact of the No Child Left Behind Act on Nonassessed Subjects

In this article, the author reports the results of a national survey taken by state assessment directors on the impact of No Child Left Behind on nonassessed subjects between the years 2001-5. Results indicate that during this time, statewide assessment of science and writing increased whereas it decreased in the social studies, arts and humanities, listening, and technology and computers. Four themes emerged when survey takers queried participants about the impact of No Child Left Behind on nonassessed subject areas. First, reduction of resources and time for nontested subject areas was evident. Second, curriculum integration of nontested subject areas into the tested subjects increased. Third, alignment of curriculum and assessment with state standards increased. Fourth, several state assessment directors relayed they observed no impact.     

大运动量训练对心脏心钠素基因表达影响的研究

冷酚法提取心房总RNA，用α-32P标记的大鼠心房肽互补DNA探针与之杂交，检测ANP-mRNA的含量结果表明，2周大运动量训练，大鼠的ANP-mRNA含量增加，4、6周大运动量训练大鼠的ANP-mRNA含量减少；心室RNA含量都减少。提示，合理的运动负荷存在着一个适宜的强度范围。