现阶段国内U-15少年足球守门员防守技术运用情况调研   总被引：1，自引：0，他引：1  

张强  杨跃飞  于永安  宫鲁农 《中国体育科技》2003,39(4):33-35

运用临场观察、访谈、文献资料调研以及逻辑分析等研究方法 ,对现阶段国内U 15少年足球守门员防守技术运用情况进行统计与分析研究。研究表明 ,少年足球守门员防射门球的预测判断能力不足 ,导致选位差、反应慢和接球易脱手 ,防守的成功率低 ;出击时机把握不好 ,对抗条件下难以有效发挥位置优势 ,强干扰下争夺球失误多。加强足球意识与心理培养 ,提高反应和接球动作质量要求是加强少年足球守门员水平稳定的重要环节。  相似文献   

少年男子足球运动员防守战术意识思维决策活动研究   总被引：1，自引：0，他引：1  

董昱  张廷安  杨刚 《北京体育大学学报》2003,26(2):274-276

控球队员随情况和位置的变更其战术思维决策活动过程的“模式”也在变更。专家组的战术思维决策活动过程选择变化在后场具有明显的“场区”特点和“对抗状态”特点 ,在中场和前场时则表现出明显的“场区”特点而没有表现出明显的“对抗状态”特点。训练水平高的职业队员及训练水平较高青年队员与专家组的战术意识思维决策活动变化有较高的相似趋势。相比之下少年队员与专家的基本战术思维决策活动“模式”有明显的差异。  相似文献   

肌酸激酶与力量训练的实验研究   总被引：4，自引：0，他引：4  

杜国玺  田慧夫  杜可宁 《冰雪运动》2002,(3):44-47

以速滑运动员为研究对象,观察不同训练水平运动员进行不同强度和不同训练时间的力量训练前后,其体内肌酸激酶(CK)活性的变化.结果表明:只有达到一定训练强度,才可引起体内CK活性的显著变化;不同水平运动员进行大强度力量训练后,均可引起体内CK活性大幅度升高;不同水平运动员进行相同强度(80%、90%)的力量训练后,训练水平较高者较训练水平较低者CK值上升幅度小;相同级别运动员进行不同强度(80%、90%)的力量训练后,训练强度大者较训练强度小者CK活性上升幅度大;相同水平运动员以相同的大强度进行力量训练后,较长时间训练者比短时间训练者,其体内CK值上升得小.进而说明选择测定训练前后CK活性值来判定运动员对力量训练的反应,是较为敏感实用的指标之一.  相似文献   

入世后我国高等职业院校体育教学发展趋势     

楼丽文  鲍其安 《湖北体育科技》2002,21(4):390-391,394

随着中国加入WTO后，社会经济的快速发展对职业技术人才的旺盛需求提出了更高要求。因此，全面提高学生的身体素质，培养学生的创新能力，造就现代化人才的强健体魄和充沛精力，是我们当前体育教学的根本任务。文章通过讨论，阐述了体育教育的发展趋势。  相似文献   

我国女子体操运动员运动损伤情况的调查与分析   总被引：11，自引：0，他引：11  

竭晓安 《北京体育大学学报》2001,24(1):56-57

对近十年来我国女子体操运动员的运动损伤情况进行了调查 ,找出了运动损伤的主要原因、常见部位及主要发生时期 ,对我国女子体操运动员运动损伤的预防具有重要意义。  相似文献   

Communicating Knowing Through Communities of Practice: Exploring Internal Communicative Processes and Differences Among CoPs     

Joel O. Iverson - Joel O. Iverson is currently an assistant professor in the 《Journal of Applied Communication Research》2008,36(2):176-199

Knowing is an enacted, communicated process that is difficult to observe, let alone manage, in organizations. Communities of practice (CoPs) offer a productive solution for improving knowledge and knowledge management, but the communicative processes that enact CoPs have not been explored, leaving CoPs as an organizational black box. This research extends CoP theory as a means to determine the presence of a CoP and distinguish between various CoPs, and as a practical means to evaluate the communicative processes of organizational knowledge. CoPs enact the communicative nature of knowing through the elements of mutual engagement, negotiation of a joint enterprise, and shared repertoire. Specifically, two groups of volunteers are examined through a combination of participation, observation, and interviews in order to explore CoP theory as a dynamic system for examining and evaluating organizational knowledge.  相似文献   

陕西省信息服务业的发展研究   总被引：1，自引：0，他引：1  

周应萍 《图书情报工作》2004,48(9):56-59

概述陕西省信息服务业发展现状，分析该产业在发展中存在的问题，提出发展陕西省信息服务业的若干战略。  相似文献   

高等师范院校学生两项资助政策的研究     

冒顺安  彭久麒  吴芝祥  张惠敏 《四川师范大学学报(社会科学版)》2001,28(5):59-70

按国家有关政策的规定，师范生享受专业奖学金和免缴学杂费、住宅费的待遇。通过调查25个省、市、自治区的35所师范院校近几年执行上述两项资助政策的实际情况，提出改革现行资助政策的设想：收费政策与其他院校并轨；在学资助与职后资助并举，以职后资助为主。  相似文献   

Understanding the Gaps Between Turkish Teachers’ Beliefs and Practices for Dealing With Preschoolers’ Peer Relationship Problems     

Çağla Öneren Şendil  Feyza Tantekin Erden 《Early education and development》2019,30(5):608-638

Research Findings: This study explores the beliefs, self-reported practices, and observed practices of Turkish preschool teachers toward children’s peer relationship problems as well as the gap between their beliefs and practices. Five female teachers of 5-year-old children were selected as participants for this multiple case study. Approximately 79 hr of observation was conducted on the children’s daily routines and activities in a natural classroom environment, which specifically included the teachers’ problem-solving strategies while confronting peer relationship problems. The participants were also interviewed regarding their beliefs and strategies for solving peer relationship problems. The findings of this qualitative investigation indicated that the teachers’ beliefs and self-reported practices included both teacher- and child-related factors. However, the observed practices included several teacher-initiated strategies; child-initiated strategies appeared, albeit less than teacher-initiated ones. This affirms the teachers’ stress on children’s role in managing peer problems. Although some of the teacher practices and beliefs were consistent, certain inconsistencies may indicate the presence of external constraints. Practice or Policy: The results of this study highlight the importance of teacher education programs providing preservice and in-service teachers with the knowledge and skills required to understand children’s peer relationships, guide their interactions, and apply appropriate intervention strategies for various peer relationship problems.  相似文献   

Developing Environmentally Responsible Behaviours Through the Implementation of Argumentation- and Problem-Based Learning Models     

Fettahlıoğlu  Pınar  Aydoğdu  Mustafa 《Research in Science Education》2020,50(3):987-1025

Research in Science Education - The purpose of this research is to investigate the effect of using argumentation and problem-based learning approaches on the development of environmentally...  相似文献