武术异化之方向与动力

文章以武术异化的方向与动力为研究对象,通过文献资料法、逻辑分析法,结合武术异化的现象,对武术异化现象进行辨证的分析。结论认为：武术发展过程中,政府导向要更多地以主动异化为武术发展的动力,社会导向要更多利用被动异化的动力促进武术发展,掌舵武术发展的方向与动力,进而促进武术的健康可持续发展。     

关于可行方向法的二个注记

文[1]中引理10.2.6.是证明非线性规划的可行方向法之收敛性的一个极为重要的依据.本文给出了一个简单的推论,并由此说明重要文献[4]中关于约束函数二次可微的假设可去.最后将引理的思想用于点到集映射算法.说明文[5]中关于一致正则的假设可减弱成所谓准一致正则.     

关于独立学院《高级英语》课程设置的思考

《高级英语》是英语专业中高段学生的一门必修课,但是独立学院的学生基础和现实特点决定了高级英语在课程设置中的尴尬境地,其教学流程和教学效果都有待改进。本文从教学材料、教学环境和教学方法三个方面分析独立学院中高级英语课程设置存在的问题以及改进的建议。     

区域经济视域下调整地方高校专业设置的理路探研

专业是高校服务社会经济发展的重要栽体,也是高校联系社会的纽带,专业建设关系到高校的可持续发展．更关系到社会经济建设和发展的方向性、有效性。地方高校服务区域经济的发展,在专业设置方面要确立以区域经济发展需求为导向的专业设置指导思想,坚持集中优势、创办特色的原则,处理好专业设置的稳定性与灵活性的关系．建立专业设置的论证机制和人才预测机制。     

高校社会体育专业培养目标与课程设置调研——以浙江省高校为例

采用文献资料、问卷调查、咨询访谈、逻辑推理等研究方法,在对高校社会体育专业毕业生的社会需求及实际就业状况进行调查分析的基础上,探讨现行高校社会体育专业的培养目标和课程设置情况。结果显示:社会对社会体育专业人才具有多元化、多层次且数量可观的现实需求,但是,目前高校社会体育专业只有1/3的毕业生从事社会体育工作。究其原因主要是目前高校社会体育专业培养目标定位不够明确和相应的课程设置尚不完善。由此,研究提出:根据时代发展的需要,应更新高校社会体育专业培养目标、细化专业方向、优化课程设置等具体建议,以适应我国社会进步对社会体育人才的新需求。     

LEGITIMIZING WIKIPEDIA

Within only a few years, the collaborative online encyclopedia Wikipedia has become one of the most popular websites in the world. At the same time, Wikipedia has become the subject of much controversy because of inaccuracies and hoaxes found in some of its entries. Journalists, therefore, have remained skeptical about the reliability and accuracy of Wikipedia's information, despite the fact that research has consistently shown an overall high level of accuracy compared to traditional encyclopedia. This study analyzed the framing of Wikipedia and its use as a news source by five US national newspapers over an eight-year period. A content analysis of 1486 Wikipedia references in The New York Times, The Washington Post, The Wall Street Journal, USA Today and The Christian Science Monitor found that Wikipedia is framed predominantly neutral and positive, and that it is increasingly used as a news source. By framing Wikipedia as credible and accurate, the newspapers help legitimize the use of the online encyclopedia. By allowing Wikipedia to influence their news agendas as a source, the newspapers confirm the growing reliability of Wikipedia.     

贵州省体育赛事发展现状及发展方向研究——基于2010-2013年贵州省体育局年度赛事计划的分析

运用文献资料和对比分析等方法,对2011年贵州省举办的第九届全国少数民族运动后前后四年间（2010--2013年）,在贵州省举办的各类体育赛事进行了研究。从贵州省开展具有民族特色的体育赛事与贵州省区域城市发展互动进行思考,探讨贵州省打造“多彩贵州、贵州地域特色体育赛事”品牌,通过体育赛事与传媒的结合,让国内乃至世界了解和认识贵州,推动贵州省体育事业的快速发展。     

动力学数学模型下弧圈球运行轨迹的研究

通过建立乒乓球的动力数学模型,对弧圈球在每一种情况下的运动规律及运行轨迹变化曲线进行分析。结果显示：影响弧圈球运行轨迹的主要因素有乒乓球运动方向、运动速度、旋转速率、加速度及Magnus力,其中乒乓球运动方向和Magnus力的变化是改变乒乓球速度变化的重要因素;在运行过程中,球向的不断变化使弧圈球的速度及加速度也不断改变;而影响乒乓球运行轨迹的直接因素是旋转速率,且弧圈球第一弧线和第二弧线在不同旋转速率下存在着明显的区别。     

Kinematic effects of repeated turns while running

Abstract

In team sports, non-contact ACL and MCL injuries occur during abrupt changes of direction, like turns or cutting manoeuvres. Fatigue affects dynamic neuromuscular control and increases knee injury risk. This study analysed how lower limb joints and centre-of-mass kinematics are affected throughout a high-intensity running protocol involving repeated 180°-turns. Twenty young men (18–23 years, BMI: 20.8–24.4?kg?m^?2) completed a 5-m shuttle running trial lasting 5?min at an average speed of 75% of their maximum aerobic speed. During the test, cardio-metabolic parameters were obtained, together with joints and centre-of-mass kinematics, using a motion capture system. Kinematic data were compared between the first and the last minute of exercise. Perceived exercise intensity ranged from “hard” to “maximum exertion” and post-exercise lactate concentration ranged from 5.4 to 15.5?mM. The repetition of 180°-turns induced a substantial reduction of hip (?60%, p?<?.001, large effect) and knee flexion (?40%, p?=?.003, medium-to-large effect), and an increase of hip adduction and internal rotation (+25–30%, p?<?.05, medium-to-large effect). Since such movements are factors increasing the likelihood of non-contact knee injuries, we concluded that the prolonged repetition of turns may expose participants to increased risk of ligament failure. Prevention programmes should include discipline-specific neuromuscular training especially in late practices.     

Self-Confidence as a Mediator of the Relationship Between Competitive Anxiety Intensity and Interpretation

The aim of this study was to examine whether self-confidence mediated the relationship between competitive anxiety intensity and direction. Elite (n = 102) and nonelite (n = 144) participants completed the self-confidence subscale of the Competitive Trait Anxiety Inventory-2 and the worry and somatic subscales from the Sport Anxiety Scale. Consistent with procedures recommended by Baron and Kenny (1986), linear regression analyses were used. The findings for elite athletes revealed worry intensity to significantly predict self-confidence and worry direction. However, when self-confidence was controlled, worry intensity did not predict worry direction over that which was significantly predicted by self-confidence. Within the analysis for somatic symptoms, only self-confidence was found to predict somatic symptom direction. For the nonelite athletes, worry and somatic symptom intensity predicted both self-confidence and direction, and direction when self-confidence was controlled. The findings for the elite athletes suggest self-confidence mediates the relationship between performers' worry symptoms and subsequent directional interpretations. However, the findings suggest that high levels of self-confidence and low symptom intensity are needed for nonelite athletes to demonstrate a less debilitative interpretation.