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   

塑胶跑道施工质量如何达到国际田联标准     

乐孝宗 《中国体育教练员》2004,(4):48-48

我国自1979年在北京工人体育场铺设了合成材料面层的田径场以后，经过20年的普及与应用，运动场使用合成材料面层已愈来愈广泛。合成材料面层的合用，提高了运动成绩和运动安全度，不仅维护容易，也改善了过去煤渣运动场对环境的影响。  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   

论李翱对传统儒学的继承与改造     

杨世文 《中华文化论坛》2001,(2):105-109

李翱的思想倾向与韩愈基本相同，但在政治主张与哲学思想方面却有自身的特色。他继承了儒家传统的民本思想，对现实政治与民生疾苦表现出强烈的关怀，同时致力于儒学理论的创新。他对佛、道二教的批评比同时代人更为理性，善于吸取其中的理论精华，丰富了传统儒学的内容。李翱于儒家众多的经典中，着重表彰《中庸》、《大学》、《易传》、《论语》、《孟子》。其《复性书》以儒为主，综合佛、道二家(特别是佛教)的思想，加以创造性的熔铸，形成一种较为系统的心性理论，补充和完善了儒学在心性论方面的不足，丰富了儒家思想，开启了宋明新儒学的先河。  相似文献   

谈记叙文语段阅读的解题技巧     

杨世南 《语文世界(高中版)》1997,(12)

一、记叙文阅读题型特点例析1995年福建省六地市中考的一道试题:阅读下面的文字,完成后面的问题.[1]中国是弱国,所以中国人当然是低能儿,分数在六十分以上,便不是自己的能力了:也无怪他们疑惑.[2]但我接着便有参观枪毙中国人的命运了.第二年添教霉菌学,细菌的形状是全用电影来显示的,一段落已完而还没有到下课的时候,便影  相似文献   

The relationship between peak height velocity and physical performance in youth soccer players   总被引：1，自引：1，他引：0  

Philippaerts RM  Vaeyens R  Janssens M  Van Renterghem B  Matthys D  Craen R  Bourgois J  Vrijens J  Beunen G  Malina RM 《Journal of sports sciences》2006,24(3):221-230

Longitudinal changes in height, weight and physical performance were studied in 33 Flemish male youth soccer players from the Ghent Youth Soccer Project. The players' ages at the start of the study ranged from 10.4 to 13.7 years, with a mean age of 12.2 +/- 0.7 years. Longitudinal changes were studied over a 5 year period. Peak height velocity and peak weight velocity were determined using non-smoothed polynomials. The estimations of peak height velocity, peak weight velocity and age at peak height velocity were 9.7 +/- 1.5 cm x year-1, 8.4 +/- 3.0 kg x year-1 and 13.8 +/- 0.8 years, respectively. Peak weight velocity occurred, on average, at the same age as peak height velocity. Balance, speed of limb movement, trunk strength, upper-body muscular endurance, explosive strength, running speed and agility, cardiorespiratory endurance and anaerobic capacity showed peak development at peak height velocity. A plateau in the velocity curves was observed after peak height velocity for upper-body muscular endurance, explosive strength and running speed. Flexibility exhibited peak development during the tear after peak height velocity. Trainers and coaches should be aware of the individual characteristics of the adolescent growth spurt and the training load should also be individualized at this time.  相似文献   

Special populations: the female player and the youth player     

Rosenbloom CA  Loucks AB  Ekblom B 《Journal of sports sciences》2006,24(7):783-793

Females and youth are frequently described as "special" populations in football literature, but together these two populations outnumber male players. What makes females "special" is that they tend to eat less when training and competing than their male counterparts, leading to lower intakes of energy, carbohydrate, and some nutrients. Youth football players are special in regard to energy and nutrient requirements to promote growth and development, as well as to fuel sport. There is limited research on the dietary habits of these two populations, but the available literature suggests that many female and youth players need to increase carbohydrate intake, increase fluid intake, and develop dietary habits to sustain the demands of training and competition.  相似文献   

The angiogenetic effect of intramuscular administration of b-FGF and a-FGF on cardiac muscle: the influence of exercise on muscle angiogenesis     

Efthimiadou A  Asimakopoulos B  Nikolettos N  Giatromanolaki A  Sivridis E  Lialiaris TS  Papachristou DN  Kontoleon E 《Journal of sports sciences》2006,24(8):849-854

Although angiogenetic therapy using recombinant growth factors holds much hope for the treatment of ischaemic diseases, there are still many unanswered questions, including the method of administration, the correct dose of these factors, and the duration of the therapeutic approach. Exercise has also been suggested to induce neovascularizaiton in muscles. We evaluated the angiogenetic effects of the intramuscular administration of basic-fibroblast growth factor (b-FGF) and acidic-fibroblast growth factor (a-FGF) in rat heart, compared with rats who exercised daily. In conclusion, both the intramuscular administration of b-FGF and exercise increased significantly angiogenesis in the heart in contrast to the intramuscular administration of a-FGF, which was ineffective.  相似文献   

养吾浩然之气——漫谈翰海春拍中的明清山水画     

乐靳 《收藏》2001,(12):17-20

翰海2001年春拍活动于6月27日在北京市京广中心举行。“古代书画专场”的拍品价位结构呈金字塔形，5万元以下的拍品占76％，5万至50万元占20％，50万元以上占4％。在“金字塔”的中间区域，山水画作品居多。这一拍品结构的设计与市场需求趋同，尤其山水画估价，接近市场行情。2001香港春拍的古代书画10大高价排行榜上，山水画占了5席。  相似文献