中国城市化与技术创新关联性的动态分析   总被引：2，自引：1，他引：1       下载免费PDF全文

程开明  李金昌 《科学学研究》2008,26(3):666-672

 城市的众多特征有利于技术创新产生,且为创新扩散创造良好条件,创新有利于加快城市化进程,两者之间存在着较强的关联性。向量自回归模型、因果检验、脉冲响应等动态分析显示,中国城市化与技术创新互为格兰杰因果关系,城市化对自身波动的冲击反应强烈,对技术创新波动的冲击反应较弱,技术创新对城市化的冲击反应强烈而对自身冲击反应较弱。结论对于推进我国城市化进程、培育城市创新能力和提高整体创新水平具有启示意义。  相似文献   

本体感受神经肌肉促进法（PNF）对提高机体平衡能力的研究   总被引：1，自引：0，他引：1  

邓罗平  雷慧  周雅丽 《军事体育进修学院学报》2007,26(3):103-105

运用文献资料法、数理统计法、对比实验等方法研究本体感受神经肌肉促进法（PNF牵张法）对机体平衡能力的影响。结果显示：实验组和对照组在训练第8周和第16周后,动、静态平衡能力均有较大幅度提高。停训4周后,实验组学生动、静态平衡能力下降。说明运用PNF牵张法有助于改善机体的平衡能力。  相似文献   

浅谈高考体育生专业加试期间的心理调整     

刘慎学 《科教文汇》2011,(6):143-144

体育生在专业加试期间需要稳定的心理状态,这样有利于提高成绩。体育教师要对体育生进行加试前的心理调整,使他们能够达到最佳的竞技状态。  相似文献   

A passion for portraits: Elizabeth Cay's pastels     

Thea Burns  Ashok Roy 《文物保护研究》2014,59(5):279-288

Elizabeth Cay (1771–1831), the grandmother of the Scottish physicist James Clerk Maxwell (1831–1879), was a talented amateur pastellist; several of her pastel portraits survive as does her set of pastels. She studied with Archibald Skirving (1749–1819), a Scottish miniature painter who later in life turned to larger-scale portraiture in pastel and served as drawing master to the Edinburgh elite. Cay's pastels are not fabricated sticks but consist of powdered pigment housed in various glass and ceramic containers and were apparently applied by stumps, still in her workbox, or brushes. The Cay color samples were identified by spectrographic analysis, polarized light microscopy, and microchemical tests which, in addition, indicated that a number of pigment mixtures present gave specific hues in keeping with earlier treatise accounts of the preparation of a pastel gamut for practical use. Elizabeth Cay's pastel workbox may be rare surviving evidence of one way, more common that we appreciate today, in which amateurs, and perhaps professionals, practiced pastel painting.  相似文献   

提高英语主观型试题的测试可靠性     

胡风明 《唐山师范学院学报》2000,(6)

虽然客观型试题在测试学生的语言能力上有很强的优势,但在实践中它的负面影响也越来越明显。主观型试题能更有效地测量学生的语言表达能力和交际能力。主观型试题编题相对比较容易,但评分却很难。要合理分析造成主观型试题信度低的原因,提出解决的方法。  相似文献   

'The Writers' Zone': A Study of the Impact of Targeting Verbal Reasoning on Student Performance and Behaviour     

Sarah Steadman 《English in Education》2003,37(2):38-47

‘The Writers' Zone’ project took place in an 11–18 mixed comprehensive in south‐east Essex. It involved 16 Year 7 boys identified as having a high level of performance in non‐verbal reasoning but low levels of performance in verbal reasoning. They were isolated from normal lessons for a fortnight to follow an alternative curriculum focusing specifically on writing. This article details the structure of the project and evaluates its success in accessing writing potential.  相似文献   

实施《学生体质健康标准》的测试结果分析   总被引：10，自引：0，他引：10  

孙艳  楼晓娟  徐美敏  孙润兴  杨伟春 《西安体育学院学报》2004,21(5):65-67

对照国家教育部、体育总局新颁布的《学生体质健康标准(试行方案)》,对东华大学体育课学习的2700名大学生进行了有关学生体质健康项目测试,给出了各项测试结果并进行分析。健康测试结果表明:体质健康达到及格线以上的学生达到99 6%;在体质健康测试的五项指标中,身高标准体重指标项测试有接近50%的在校学生呈现体重超重、肥胖;其它四项指标均达到99%及格线以上。本校把测试项目作为体质健康的评价指标纳入体育课成绩管理,占体育课成绩的20%。  相似文献   

加强软件质量管理的必要性     

秦娥  魏红娟 《平原大学学报》2003,20(2):40-41

通过开发和应用中小型软件对软件质量中存在的问题进行分析，提出提高软件质量的办法。  相似文献   

Neuromuscular and technical abilities related to age in water-polo players     

Fabio De Siati  Guillaume Laffaye  Giorgio Gatta  Antonio Dello Iacono  Johnny Padulo 《Journal of sports sciences》2016,34(15):1466-1472

Testing is one of the important tasks in any multi-step sport programme. In most ball games, coaches assess motor, physical and technical skills on a regular basis in early stages of talent identification in order to further athletes’ development. The purpose of the study was to investigate anthropometric variables and vertical jump heights as a free throw effectiveness predictor in water-polo players of different age groups. Two hundred and thirty-six young (10–18 years) male water-polo players partitioned into three age groups underwent anthropometric variables’ measures and squat- and countermovement-jump tests, and performed water-polo free throws. Anthropometric variables, vertical jump heights and throw speed – as a proxy for free throw effectiveness – resulted different over age groups. Particularly, throw speed changed from 9.28 to 13.70 m · s^?1 (+48%) from younger to older players. A multiple-regression model indicated that body height, squat-jump height and throw time together explain 52% of variance of throw speed. In conclusion, tall height, high lower limb power and throwing quickness appeared to be relevant determinants for effective free throws. Such indications can help coaches during talent identification and development processes, even by means of novel training strategies. Further research is needed over different maturity statuses.  相似文献   

Study on dynamic response of embedded long span corrugated steel culverts using scaled model shaking table tests and numerical analyses     

车爱兰  葛修润 《浙江大学学报(A卷英文版)》2006,7(3):430-435

INTRODUCTION On Jan. 17, 1995, the Hyogoken-nanbu earth-quake in Kobe, Japan, caused great destructive and damage to underground structures, such as subway structures, mountain tunnels, multipurpose under-ground ducts and other underground structures, which had previously been considered to be resistant to earthquake effects (JSCE, 1996; ECRHAED, 1998). This earthquake revealed that a number of critical issues should be added in the seismic design and seismic strengthening of undergr…  相似文献