Does installation of the backstroke start device reduce 15-m start time in swimming?

The purpose of this study was to determine the installation of the backstroke start device reduces 15-m time. Thirteen college swimmers participated in this study. The aerial start and underwater motions were recorded with two digital video cameras. The center of mass (CM) of the swimmer, angular displacements and velocities of the shoulder, hip and knee joints were calculated. As an indicator of performance, the 5- and 15-m times were measured. The 5- and 15-m times in the backstroke start device condition were significantly shorter than in the non-backstroke start device condition. The vertical velocities of the CM at hand-off and toe-off in the backstroke start device condition were significantly greater than in the non-backstroke start device condition, while there was no significant difference in the CM horizontal velocity at toe-off. As a result, the height of the great trochanter at entry of the fingertips, with the backstroke start device, was 15 cm higher than in the non-backstroke start device condition. In addition, the CM horizontal velocities at 5 m in the backstroke start device condition were significantly greater than those of the non-backstroke start device. Thus, the use of the backstroke start device may reduce the 15-m time by diminution of the entry area.     

高校教师课程设计能力之研究

为了给社会提供更多、更好的高等教育 ,高校教师需要成为成功的课程设计者。本文从讨论当前高校教学的状况入手 ,分析了课程设计的要素体系 ,评述了三种不同类型的课程设计模式 :经典的Dick模式、针对网络教学的Kuan模式及易于为大学教师使用的Fink整合模式     

College entrance programs of compensatory education: Experience in the U.S.A.

This article summarizes an extended study carried out by Oberlin College, Ohio. Bright thirteen-year old black pupils were randomly assigned to experimental and control groups. The experimental group was given compensatory instruction until they were of college age. Comparisons with the control group showed that nearly all of these pupils — from backgrounds where completing secondary school and attending college are both unexpected — entered college.     

British Cultural Influence and Japan: Elizabeth Phillips Hughes's Visit for Educational Research in 1901–1902

The ideal of Japanese womanhood was created according to an educational ideology suited to a modern nation state. One regularly used concept was ‘ryōsaikenbo’, a mixed ideology, drawing together idealised images of the British lady and traditional Japanese women. Another imitated concept was Japanese athleticism called new Bushidō influenced by British boys' public school morality during the era of the Anglo-Japanese Alliance. However, there was a strong sense of Japanese cultural nationalism that grew in reaction to the threat of foreign enemies and the hardship of two wars, the Sino-Japanese War, 1894–1895, and the Russo-Japanese War, 1904–1905. This created a potential problem. Despite an occidental veneer, those new values were combined with traditional Japanese religion. Elizabeth Phillips Hughes' articles published in Japan during 1901 and 1902 reflect this process of inventing a tradition of both Japanese women's and men's ideal that was originally influenced by the values of the British middle class and the fact that early feminism was trapped within imperialistic ideology. Eventually, girls' physical exercises were recommended as long as they did not damage femininity. Less feminine sports took popular underground paths. Girls' physical exercises flourished after the First World War in Britain and the Second World War in Japan.