浅析影响青少年足球运动发展的因素

采用文献资料法等研究方法,对现阶段影响青少年足球运动发展因素进行分析和探讨.结果发现:对青少年足球运动缺乏战略性认识;管理体制和运行机制不完善;训练指导思想不明确,忽视青少年人才成长及培养规律,急功近利;教练员整体水平不高,教练员队伍建设滞后等是当前我国青少年足球运动员培养中存在的主要问题,并针对这些问题,提出相应的建议.     

现行足球训练体制下我国青少年后备人才培养状况的研究

本文采用文献资料法、专家访谈法、问卷调查法、数理统计法、比较法和逻辑分析法以参加中国足协组织冬训的U-17的青少年队伍以及上海市部分足球学校教练员为调查对象,了解分析我国青少年后备人才培养的现状,找出我国现行足球训练体制对青少年后备人才培养的不利影响,并在此基础上提出相关意见,为我国青少年足球后备人才培养与足球健康发展提供参考.     

普通高校高水平运动队训练改革的探索

在现有的业余训练模式下,高校运动队竞技体育水平的提高主要受训练时间、学习和训练的矛盾、资金、以及各种训练保障体系等方面因素的影响.为减少不利因素对运动队训练的影响,必须改革现有的运动训练模式.采用实验法将校运动队训练纳入体育课堂教学,通过三年的实践探索和分析得出:采用新的训练模式优势明显,主要体现在学训矛盾问题缓解;训练条件得到改善;训练场地充分利用;扩大了选材范围,形成一定的梯队建设;提高了教练员的工作积极性等方面.     

运动训练学理论体系的新发展

近年来,我国运动训练学理论体系建设取得了具有科学意义的重要进展.从运动训练学3个层次理论体系的确立、训练目标导向与控制过程的强化、训练理论时空架构相对均衡的调节、竞技能力结构的"双子模型"、运动训练学基本概念的科学定义以及运动训练学理论向竞技体育学理论的扩展6个方面研究成果的介绍可以清晰地感受到具有中国特色的运动训练学理论体系正在逐步形成.     

高中篮球训练教学有效性之探讨

篮球教学是体育课堂教学的一部分,在篮球的训练过程中,老师要注意篮球理论的最新动态,观摩、借鉴各比赛中教练员的指挥和运动员的发挥,学习其他教师先进的训练方法,只有这样才能提高教学效果.本文结合自己在教学训练中的经验,对高中生篮球训练教学进行探讨.     

浅谈青少年足球运动员足球意识的培养与训练

足球作为一个复杂多变的运动项目,需要运动员能够灵活地运用综合性的各项技、战术,这就是意识,被称为足球运动的灵魂,足球意识的培养须要靠长期训练、比赛的积累,而青少年正是培养足球意识的黄金时期,但目前的少年运动员,尤其是学校业余运动员的初级训练,往往重技术,轻意识;重结果,轻过程,而造成到了一定水平后,就会发现个人的技术不错,却不能互相配合,发挥整体战斗力.此时再予以纠正和培养,已为时已晚了.而足球意识的培养与训练,是一个循序渐进,日积月累的过程,教练员的训练技巧,是其中关键一环.     

制约内蒙古自治区专业网球运动发展的因素分析

网球运动是一门大众运动,进入我国时间还比较短,但我国在网球事业已经有了一定的基础。我区的业余水平也达到了一定的水平,但是专业水平还相对的落后.本文通过对内蒙古网球运动的场地、经济、年龄、教练员及比赛等方面进行分析,并结合地区的特点,总结制约内蒙古自治区网球运动的发展因素.     

关于我国高校拓展训练课程的研究

拓展训练在我国高校的开展经历了从无到有的过程.十几年来,无论是拓展训练课程教学内容的选择、教学目标的设定、以及教学方法与教学模式的探索,直至最终教学效果的分析评价,学校拓展训练课程教学体系正在逐步完善.本文通过理论与实践的结合,希望能够对我国高校拓展训练课程教学改革提供些许建议.     

青少年运动员应如何做好体育运动的心理训练

从运动心理学的角度做为出发点,结合运动训练学的训练方法,从而总结出适用于青少年运动员情绪调节、针对比赛的多种心理训练方法,有助于增强运动员的心理技能,保持良好的心理状态,使青少年运动员在比赛中保证自己技术、战术水平的发挥。     

浅析核心力量训练对篮球运动员的重要性

本文通过对核心训练理论、特点、作用的分析,结合篮球运动员在运动中的特点,阐述了核心力量训练对于篮球运动员训练与比赛的重要性.     

Benzimidazole resistance in cyathostomes in horses in the Ukraine

The efficacy of treatment with cambendazole was tested in 1-year-old horses on a farm in Dubrovka, Ukraine. Thirty-five horses were treated. Their egg output was compared on the day of treatment and 14 days later with that of 33 untreated horses. Before treatment the mean number of eggs g-1 faeces was 614 in the controls and 766 in horses that had been treated. After 14 days the mean egg output in the controls was 580 and in the treated horses 369. This means a reduction of 54.5%. Only cyathostome larvae could be cultured from faeces collected after treatment. It can be concluded that benzimidazole resistance in cyathostomes is present in the Ukraine.     

重庆高校推进产学研合作的案例分析

以重庆大学、重庆邮电大学和重庆理工大学为例,剖析重庆高校推进产学研合作的基本模式,已经取得的突出成绩,分析总结其基本经验.从完善政策法规体系、强化经济调控、建立组织机构、加强中介建设及开展国际产学研合作等方面,提出了深入推进重庆高校产学研合作的对策建议.     

Apoptosis in experimental myocardial infarction in situ and in the perfused heart in vitro

We report the appearance of apoptotic cells in experimental myocardial infarction (rabbit heart) in in situ and in vitro preparations. Apoptosis was recognized by intravital staining with Hoechst 33342 (Ho342), by nick-end labeling (TUNEL) and by DNA laddering. A steady rise in the relative number of apoptotic cardiomyocytes (apoptotic index) was noted in in situ preparations. Apoptosis was first noted 6 h after the onset of ischemia with its highest value occurring after 72 h. Apoptotic nuclei were absent in remote areas of the left and right ventricles. Apoptotic nuclei within the infarcted area showed diminished intensity of Ho342 fluorescence. Three days after ischemia, a border zone adjacent to the infarcted area consisting of apoptotic macrophages was recognized. A novel finding was the appearance of apoptotic cardiomyocytes in the isolated perfused ischemic heart. Occurring as early as 50 min after the onset of ischemia, a high apoptotic index was present adjacent to the ligature placed around the coronary artery. This observation provides the opportunity to selectively examine factors leading to apoptosis in the ischemic heart under controlled experimental conditions.     

Fractures in childhood in Khartoum

A prospective study of fractures in 231 children received at Khartoum North Teaching Hospital(KNTH) was carried out for a period of six months. The incidence of child fracture rated as one per day, then it increased from the age of 5 years onwards in boys and between 6 and 8 years in girls. Most injuries were sustained during the day time, especially between late afternoon and sunset. 82% of injured children presented to a medical facility, while 18% were taken to native healers first. Non-road traffic accidents accounted for 84% of the fractures mainly due to sports, domestic injuries and falls; whereas road traffic accidents were 16% and occurred mainly in pedestrians. Forty three percent of the fractures needed only first aid and splintage while 42% needed closed reduction. Thirty one percent of all patients were treated as inpatients. The long bones were affected in 91% of all fractures, the commonest site being the distal end of the forearm (26%), followed by supracondylar fracture of the humerus (15.6%). In the upper limb, left-sided fractures predominated. The epiphyseal injuries were 3.5% of all fractures, mainly at the distal radial epiphysis. Boys were commonly affected between 13-15 years of age. Open fractures constituted 9.8% of the series and were mainly due to traffic accidents in town dwellers, the most vulnerable bones were those of the leg and foot. Pathological fractures accounted for 2.2% and were due to bone cysts and osteogenesis imperfecta. The problem of child safety and the preventive measures need to be more stressed.     

Botulism in Poland in 1996

A model is presented in which ion translocation through the F0 part of the ATP synthase drives the rotation of the ring of c subunits (rotor) versus the a subunit (stator). The coupling ion binding sites on the rotor are accessible from the cytoplasm of a bacterial cell except for the c subunit at the interface to the stator. Here, the binding site is accessible from the periplasm through a channel formed by subunit a. In the ATP synthesis mode, a coupling ion is anticipated to pass through the stator channel into the binding site of the adjacent rotor subunit, following the electrical potential. Occupation of this site triggers, probably by electrostatic forces, the rotation of the ring. This makes the binding site accessible to the cytoplasm, where the coupling ion dissociates. Simultaneously, this rotation moves again an empty rotor subunit into the contact site with the stator, where its binding site becomes loaded and rotation continues.     

Problems in falling in love

Certain patients enter psychoanalysis because of their inability to love another person. Often they report a repetitive erotic pursuit of desired partners, without being able to experience or maintain loving feelings. Kernberg has understood such difficulties as representing effects of early narcissistic disappointments and/or of difficulties in resolving oedipal conflicts. In this paper, Lacanian concepts of the mirror phase and symbolic love are employed to develop these issues. Sexualization of problems in mirroring may be fused with oedipal conflicts in some cases. An extended vignette is presented to illustrate the technical and theoretical issues.