友谊与团结     

H·G·伽达默尔 《安徽师范大学学报(人文社会科学版)》2002,30(5):497-501

古代的哲学家几乎没有不在其理论、演说或著作中提到"友谊"这个概念.只有了解的人才会知道,大师亚里士多德在他的三本伦理学著作中赋予友谊概念以核心的地位;而康德这位思想上值得吾人敬重的哲人,在其人类学演讲录中,却只给友谊一页的篇幅.尽管如此,他还是说出了值得我们深思的真理:"真正的朋友稀少如黑色的天鹅."  相似文献   

Immediate effects of the use of modified take-off boards on the take-off motion of the long jump during training     

Koyama H  Muraki Y  Ae M 《Sports biomechanics / International Society of Biomechanics in Sports》2006,5(2):139-153

We investigated the immediate effects of the combined use of inclined and raised flat boards on the take-off motion of the long jump. Eight male long jumpers were videotaped with two high-speed video cameras (250 Hz) set perpendicular to the runway. The athletes jumped with three modified take-off boards: upward-inclined boards of two different inclinations (2.5 and 5.0 degrees), and a raised flat board (50 mm high). The jumpers performed pre- and post-jumps using their own techniques before and after use of the boards to test their effects. The post- jump revealed significantly less reduction in the horizontal velocity during the take-off than the pre-jump, and the effectiveness of converting the velocity from horizontal to vertical increased significantly in the post-jump. The post-jump demonstrated significantly less knee flexion of the take-off leg during take-off. The reduced knee flexion and slower extension velocity of the take-off leg in the second phase of the post-jump contributed to increasing the knee extension torque in the second phase and resulted in the increases in vertical ground reaction force and vertical velocity. These results suggest that the combined use of the inclined and raised flat boards induced immediate effective changes in the kinematics and kinetics of the take-off motion and represent appropriate training tools for take-off techniques of the long jump.  相似文献   

人的天性从哪里来     

彼得·B·纽鲍尔  亚历山大·纽鲍尔  赵永芳 《科技文萃》2004,(9):60-62

基因的作用最大 在过去,人类的许多特性总被视为是童年抚养与环境影响的结果.现在,通过新的基因研究、临床观察、同卵双胞胎和被领养儿童的研究,我们愈来愈了解,这些特性根植于基因矩阵之中.问题是,人的特性与个人生活经验的关系如何?  相似文献   

第一步     

A.C.Swinburne  和宝君 《中学生英语》2006,(25)

~~第一步@A.C.Swinburne $河北乐亭二中@和宝君~~  相似文献   

爸爸忘了你还只是个孩子     

W.Livingstom Larned  杨双菊 《海外英语》2004,(8):21

本期推出两篇短小精美的文章,表达了父爱的温馨,有兴趣的读者朋友不妨将它们作为范文来诵渎。  相似文献   

The distance-time relationship over a century of running Olympic performances: A limit on the critical speed concept     

Dekerle J  Nesi X  Carter H 《Journal of sports sciences》2006,24(11):1213-1221

We analyse the evolution of the slope (critical speed) and the y-intercept (anaerobic distance capacity) of the linear distance-time relationship over a century of Olympic running performances. The distance-time relationship of each Olympic Games (1920-2004) was plotted using the performances in the 800-, 1500- and 5000-m track events. Values for critical speed and anaerobic distance capacity were determined by linear modelling. Mean performances for the 800, 1500 and 5000 m were 104.9 +/- 1.5 s (1.4%), 217.2 +/- 2.8 s (1.3%) and 808.9 +/- 18.4 s (2.3%), respectively. Critical speed improved during the first three-quarters of the twentieth century to reach a plateau in 1984. This is in accordance with the literature (Peronnet & Thibault, 1989) and suggests that "human aerobic endurance" has improved within the century (+13.4%) and tends to stabilize. Anaerobic distance capacity was highly variable over the century (coefficient of variation = 9.4%) and did not show a linear improvement over the years as has previously been suggested (Peronnet & Thibault, 1989). This could be due to an artefact in the application of the two-parameter model to only three Olympic performances. A limitation to the use of this linear mathematical model to fit physiological data may have been demonstrated.  相似文献   

工场教员与三种工场教授法     

W.T.B  秦翰才 《教育与职业》1924,(0)

教授为各种教员之主要业务.工场教员自亦不在例外.惟工场教员如实验室科学教员.尤须负组织及经理之责.盖工场之设备.少则值数百圆.多则达数千数万圆.是其保管维护.均工场教员一身.万一失于捡贴.势必损坏而失其效用.故为工场教员.须谨慎精细.同时工场教师亦为购货主任.凡工场所需之工具.材料等等.均应由工场教员随时调查.供给支配.此亦须特殊之知识与能力者也.于是我人  相似文献   

阅读教学中确定目标的作用     

威廉·E·布兰顿  卡伦·D·伍德  加里·B·穆尔曼  陈春喜 《外国中小学教育》1992,(4)

阅读教学中确定阅读目标,可从多方面帮助学生对文章的理解。学生独立阅读文章时,在老师指导下培养学生提出正确的目标、要求的能力。阅读教学的目标,应该始终是帮助学生向独立阅读过渡,教师确定目标的模式,应逐渐由教师和学生同时确定所代替,而最终让步给完全由学生确定。至少从三个方面来说,目标的确定提高了阅读理解的能力:  相似文献   

诗二首     

D·H·劳伦斯  王竞 《世界文化》1992,(2)

资产阶级真令人恶心资产阶级真令人恶心,尤其是那些人中的男性。体面,冠冕堂皇,是否要我把他当作礼品送上?难道他不漂亮?不健康?不是极好 的样品?难道他外表不像个衣冠楚楚精神饱 满的英国佬?难道他不是上帝自身的形象,猎鹤鸽、打棒球,一天行走30英 里?难道你不羡慕,那么有钱,那么时 髦?不过,请等一下。让他体验一种新的情感,让他置身 于别人的困境,让他遇到道德的难题,或是生活迫使他要重新理解,那时我们可看到他垮了下来,像受潮的蛋白酥皮,我们可看到他一筹莫展,成了傻 瓜,或成了恶痞。当他的智力面临新的考脸,严峻的生死彼关的考验,且看…  相似文献   

冠军制造     

H.Smith!特约撰稿人 《篮球》2001,(2)

一切精彩源于一只小小篮球篮球运动作常精彩！由美国东海岸萌发的篮球运动，经过一个多世纪的洗礼，如今已风靡全球。在竞技体育的大餐中，篮球属于最有品味的极品佳肴。美国人可以不关心总统是姓布什或是姓戈尔，但没有一个真正的美国人可以不关心篮球。的确，一切精彩源于一只小小篮球。在百年前的美国东部，托马斯．伊．维尔胜（Ｔ．Ｅ．Ｗｉｌｓｏｎ）先生在处于工业革命前的小镇——芝加哥，开设了一个以自己名字命名的体育用品公司。为了维持公司的运行，老托马斯开始研制、生产篮球和橄榄球产品，在此之前，篮球的制造水平低下，工艺…  相似文献