西安市基础教育与社会经济协调发展的实证研究

基础教育的发展和社会经济的发展是一个动态演进的过程。以西安市2001-2011年统计年鉴和教育统计公报的数据为基础,构建基础教育与社会经济交互作用下的两个子系统,运用线性加权和法确定两个子系统的综合发展水平,构建协调发展度模型,进而评价基础教育与社会经济发展的协调状况。结果表明：（1）2001-2011年期间,基础教育发展指数平均每年上升0.08个点,社会经济发展指数平均每年上升0.03个点;（2）研究期末协调度为0.993、协调发展度为0.902,协调发展类型为优质协调发展类经济滞后型。西安市在未来的发展中,要加快经济转型升级,大力发展创新型经济,实现西安由教育大市向教育强市的根本性转变,以期达到社会经济和基础教育之间的平衡。     

基于抽象协调性质层次的应急网络组织治理中的协调机制构建

针对应急网络组织治理的特征、协调方式的有效性等方面综合考虑,从试图达到较为理想的协调效果的目标出发,从治理基础和治理手段两方面分析,强调应急网络组织治理中协调机制的重要性,并从新的视角科学地构建出应急网络组织治理七层次协调机制,即:混合层、激励层、协商层、交易层、规约层、技术层、自治层。这7个层次对应说明了其协调问题的难易程度:混合层应当解决的是最难协调的问题,其次是激励层等,自治层应当解决的是最易协调的问题。协调问题的难易程度不同,协调目标的理想程度也不同,分别从协调问题的相对难易程度、协调目标的相对理想程度、协调问题的相对显性程度三方面展开论述。     

人力资本与产业结构匹配对投资效率影响的实证分析

本文从人力资本与产业结构匹配的角度分析了投资效率的影响因素。采用中国30个省份1997-2013年省际面板数据,估计了人力资本与产业结构匹配度对地区投资效率的影响,并且进行了稳健性检验。在度量人力资本与产业结构的匹配程度时,利用系统理论和耦合理论,构建了匹配度的测算模型,对人力资本与产业结构的匹配程度进行了测算和分析。研究表明：中国人力资本与产业结构的匹配度整体较高,随时间变化有上升的趋势,但各省间的差异较为明显;人力资本与产业结构匹配度的提升能够提高地区投资效率。各地区在制定产业结构政策时,应注重与其人力资本禀赋相适应,提高两者匹配程度,进而改善投资效率,从而提高经济增长质量。     

2003~2013年中国城市休闲化质量评估——耦合与协调双重视角的考察

基于耦合与协调双重视角,通过构建指标体系和评估模型,采集2003~2013年中国36座城市数据,全面考察和评估中国城市休闲化质量,并进行空间差异特征分析.研究发现:①中国城市休闲化耦合发展处于拮抗阶段,并快速向磨合阶段迈进;②目前中国城市休闲化协调发展水平相对较低,但呈现出持续提升态势,同时城市间差距较大;③东部和西部城市休闲化耦合度相对较高,而协调度大致呈现由东向西依次递减的趋势.     

艺术体操教学中学生协调性的培养

艺术体操学习对协调性素质要求甚高,要出色地完成艺体教学任务,须注重学生协调性的培养。文章简论了艺体教学中培养协调性的若干方式方法。     

The role of pelvis-thorax coupling in controlling within-golf club swing speed

Pelvis-thorax coordination has been recognised to be associated with swing speed. Increasing angular separation between the pelvis and thorax has been thought to initiate the stretch shortening cycle and lead to increased clubhead speed. The purpose of this study was to determine whether pelvis-thorax coupling played a significant role in regulating clubhead speed, in a group of low-handicap golfers (mean handicap = 4.1). Sixteen participants played shots to target distances determined based on their typical 5- and 6-iron shot distances. Half the difference between median 5- and 6-iron distance for each participant was used to create three swing effort conditions: “minus”, “norm”, and “plus”. Ten shots were played under each swing effort condition using both the 5-iron and 6-iron, resulting in six shot categories and 60 shots per participant. No significant differences were found for X-factor for club or swing effort. X-factor stretch showed significant differences for club and swing effort. Continuous relative phase (CRP) results mainly showed evidence of the stretch shortening cycle in the downswing and that it was more pronounced late in the downswing as swing effort increased. Substantial inter-individual CRP variability demonstrated the need for individual analyses when investigating coordination in the golf swing.     

Is movement variability important for sports biomechanists?

This paper overviews the importance for sports biomechanics of movement variability, which has been studied for some time by cognitive and ecological motor skills specialists but, until quite recently, had somewhat been overlooked by sports biomechanists. The paper considers biomechanics research reporting inter- and intra-individual movement variability in javelin and discus throwing, basketball shooting, and locomotion. The overview does not claim to be comprehensive and we exclude such issues as the theoretical background to movement and coordination variability and their measurement. We overview evidence, both theoretical and empirical, of inter-individual movement variability in seeking to achieve the same task goal, in contrast to the concept of “optimal” movement patterns. Furthermore, even elite athletes cannot reproduce identical movement patterns after many years of training, contradicting the ideas of motor invariance and “representative” trials. We contend that movement variability, far from being solely due to neuromuscular system or measurement “noise” – as sports biomechanists may have previously supposed – is, or could be, functional. Such functionality could allow environmental adaptations, reduce injury risk, and facilitate changes in coordination patterns. We conclude by recommending that sports biomechanists should focus more of their research on movement variability and on important related topics, such as control and coordination of movement, and implications for practice and skill learning.     

烯烃配位聚合复合载体催化剂研究进展

自从Ziegler-Natta催化剂发现以来,人们已对该类催化剂作了许多的研究,以MgCl_2为载体的高效催化剂的巨大成功,引起了人们对载体和过渡金属元素的相互作用的浓厚兴趣,近年来许多文献和专利报道了对复合载体催化剂的大量的研究成果,似有可能出现具有更优特性的高效催化剂. 本文就复合载体催化剂的研究现状作一综述.     

论美国的政府信息公开制度

本文从法律角度介绍了美国现行信息公开的法律制度，分析政府信息公开制度的产生、目的，从而说明信息公开的相对性和国家利益的绝对性。     

知识链协同效应作用机理实证研究

以知识链为研究对象,从主体协同、机制协同和知识协同三个方面分析了知识链协同效应形成机理,并提出相关研究假设。通过知识链中成员组织合作的数据,运用结构方程对本文相关假设进行了实证检验。研究表明:主体协同、机制协同和知识协同均对知识链协同效应的产生有直接影响。此外,在知识链中机制协同对主体协同和知识协同有正向影响,而主体协同对于知识协同影响作用并不显著。