北京市高校健美操俱乐部经营现状研究

采用专家访谈法、问卷调查法和数理统计归纳法,调查北京市普通高校中的56所高校健美操俱乐部的开展情况,并随机调查了其中16所健美操俱乐部。对比研究了北京市高校健美操社团型俱乐部和经营型俱乐部的学员基本状况、指导员基本状况以及俱乐部运行方面的差别。     

我国农村城镇化过程中的产业集聚研究

通过对产业集聚的理论发展进行综述,全面分析了产业集聚的效应,在此基础上分析了产业集聚与农村城镇化的紧密关系,并最终提出了农村城镇化过程中产业集聚的选择路径。对于现阶段提出的城乡经济协调发展、加快城镇化发展及建设和谐社会都具有重大的现实意义。     

高校体育环境系统特点及建设

运用文献资料法、比较分析法，明确了高校体育环境的三大要素，分析了高校体育环境具有整体性、关联性、长期性、系统性的特点，并就高校体育环境系统建设提出：发挥教育者的主导作用；提高学生体育锻炼的积极性；制定健全科学的规章制度、条例；立足于大学生体育发展的特点，创建良好的体育环境；重视宣传、舆论环境的培育等对策。     

试析排球规则的修改对排球发球技术的影响

自1895年排球诞生以来，就有了自己的比赛规则。在100多年的发展过程中，已对规则进行了无数次的修改和补充，每一次的修改都带动排球技战术的发展和创新，新的技战术的出现促进了规则的完善，以适应排球运动发展的需要。章通过对排球规则的演变对发球技术的影响进行研究和探讨，为排球发球技术的提高提供参考依据。     

Health benefits of Kung Fu: A systematic review

Abstract

The Chinese martial arts (Kung Fu) have existed for centuries and are generally accepted as being beneficial for health without much empirical data. The aim of this systematic review was to assess the health effects of “hard” Kung Fu styles by performing electronic and manual searches of the literature. The aspects of health and the Kung Fu style examined varied between most studies; in some cases, the martial art group consisted of practitioners of other martial art styles also. Of 2103 references identified, only nine papers were eligible and reviewed. All were observational studies, observing a range of health aspects possibly related to Kung Fu training or performance. Our findings suggest that there is no evidence that Kung Fu practice is associated with the prevention or treatment of any health condition. However, as a moderate- to high-intensity form of aerobic exercise, it may confer benefits similar to those attributed to other aerobic training modalities. However, this hypothesis remains to be tested in clinical trials. Physiological benefits (e.g., aerobic capacity and bone density) may be associated with long-term Kung Fu practice. Future research in this area should adopt experimental designs, clearly identifying eligibility criteria, testing and training protocols, and include health-related outcomes and documentation of adverse events, to advance knowledge in this field.     

The influence of pitch dimensions on performance during small-sided and conditioned soccer games

Abstract

This study examined the influence of pitch dimensions in small-sided soccer games in shaping opportunities for performers to maintain ball possession, pass to teammates and shoot at goal. Fifteen amateur standard male participants (M = 21.87, σ = 1.96 years) played 5 v 5 small-sided soccer games in three varying pitch conditions (28 m × 14 m, 40 m × 20 m and 52 m × 26 m). Thirty sequences of play in each condition were selected for digitisation using TACTO software, allowing the capture of bi-dimensional displacement coordinate data of all players and the ball. The values of interpersonal distance between all attackers and immediate defenders and the relative distances of defenders to intercept a shot and a pass were computed as dependent variables. Results showed existence of fewer opportunities to maintain ball possession on smaller pitches, compared to medium and larger pitches. Conversely, the different dimensions set to the pitch did not influence opportunities for players to shoot at goal, or to perform passes to other teammates. By examining the specific spatial–temporal relationships of players and key-task constraints, the data from this study explain how effects of manipulating pitch dimensions of small-sided games might enhance opportunities for acquiring specific movement and decision-making skills.     

The impact of a dialogic reading program on deaf and hard-of-hearing kindergarten and early primary school-aged students in Hong Kong

The present study investigated the effects of a special interactive dialogic reading method developed by Whitehurst et al. (1988) on deaf and hard-of-hearing children in Hong Kong. Twenty-eight deaf and hard-of-hearing children in kindergarten, first, or second grade were pretested on a receptive vocabulary test and assigned to one of three conditions, dialogic reading, typical reading, and control, with age and degree of hearing loss matched. After an 8-week intervention, the children were re-tested. The dialogic reading group had a significantly greater improvement in vocabulary scores than did the other two groups. Parent-child interactions of high quality and the use of pictorial materials are likely the key successful factors in the program. The educational value of this intervention is discussed.     

Echoslamming: how incivility interacts with cyberbalkanization on the social media in Hong Kong

Cyberbalkanization has growingly become common on the Internet and can lead to public’s opinion polarization. This study investigates a specific process of cyberbalkanization through which incivility is circulated within online communities. From a dataset of Hong Kong-based Facebook Pages collected during a social movement, a set of politically-organized communities was identified and their connectivity generated a post-sharing network. A random sample of contents shared between and within these communities was then manually classified based on the level of incivility. The targets of offence through the use of uncivil language were also coded. Contents shared within ideologically compatible communities were found to be more likely to be uncivil. The association was significantly more positive in a populistic community, of which members had unique political nature and cultural norms. The targets were usually political opponents and incivility was adopted to petition detractors from within-community discussions. We therefore suggest ‘echoslamming’ is an online phenomenon through which uncivil contents catalyse anger toward political opponents among ideologically congruent information sources and consequently reinforce the audience’s predilection. Such a mechanism can be one underlying explanation for a vicious circle of cyberbalkanization-induced polarization on political opinions.     

基于创新双螺旋模型的战略性新兴产业促进政策体系研究

战略性新兴产业已经成为全球科技和产业竞争的新聚焦点,各国政府都在通过制定扶持政策来推动本国新兴产业发展.我国各地各部门也在加紧制定相应扶持政策,决策需求十分迫切.本文充分比较了全球主要发达国家在战略性新兴产业布局和扶持政策上的不同侧重点,分析了我国各主要省市在战略性新兴产业领域选择上的异同,在充分借鉴“创新2.0”概念的基础上,提出了战略性新兴产业发展的双螺旋模型,并根据该模型衍生出了战略性新兴产业促进政策体系的钻石模型,提出了我国战略性新兴产业促进政策体系的框架设计和具体政策措施.     

土地经营对中国城市空间扩张的驱动机制——基于273个地级市的实证分析

分税制改革后,地方政府采取"以地生财、以财养地"的城市土地经营模式,凭借土地出让获取土地收益,并用于城市基础设施等城市建设投资,以推动城市经济发展,但土地经营对城市规模的空间扩张机制仍有待理清.基于地方政府土地收益和城市建设投资两个维度,本文构建了中国地方政府土地经营驱动的城市空间扩张理论逻辑,选择2003-2017年...