体育新词汇的产生及其规范     

梁欢  宗迎军 《商丘职业技术学院学报》2006,5(5):111-113

以近年来活跃于人们口头甚至专业媒体的现场直播或书面报道中的体育新词汇为研究对象,将他们归纳为若干类别,分别说明它们的产生方式,并根据具体问题具体分析的原则,对其作出不同的规范化要求.  相似文献   

Piece-by-Piece Review of Digitize-and-Lend Projects through the Lens of Copyright and Fair Use     

Michelle M. Wu 《Legal Reference Services Quarterly》2017,36(2):51-73

Digitize-and-lend library projects can benefit societies in multiple ways, from providing information to people in remote areas or with physical disabilities to facilitating the sharing of library resources with information-poor communities. This article explores the potential of digitize and lend as well as outlines how projects can be undertaken in a manner respectful of the balance of copyright.  相似文献   

Elementary school children’s understanding of science: The implementation of an extracurricular science intervention     

《Contemporary educational psychology》2017

The promotion of students’ achievement and competence in the so-called STEM disciplines is one cornerstone of current educational research and practice. In particular, as early as elementary school, the fostering of an adequate understanding of science is a normative goal of science education. It facilitates students’ science learning and enables them to understand the nature and development of scientific knowledge. Based on the relevance of the promotion of young children’s understanding of science, a corresponding science intervention was recently developed and successfully evaluated in a first study under highly controlled conditions. The goal of the present study was to investigate the effectiveness of this intervention when implemented in practice. One hundred seventeen third- and fourth-grade students and 10 trained course instructors participated in this study. We applied a randomized block design with waitlist control groups and repeated measures. The results revealed that children assigned to the intervention compared with children assigned to the waitlist control group showed better inquiry-related methodological competencies (a better understanding of the scientific inquiry cycle and experimentation strategies) and a higher need for cognition. The findings point to the successful implementation of the intervention and are compared with the results of the first study.  相似文献   

Improving cognitive and physical function through 12-weeks of resistance training in older adults: Randomized controlled trial     

Paulo Ricardo Pereira Dos Santos  Bruno Remígio Cavalcante  Andreya Karolyne Dos Santos Vieira  Marcos Duarte Guimarães  Antônio Marconi Leandro Da Silva  Anderson Da Costa Armstrong 《Journal of sports sciences》2020,38(17):1936-1942

ABSTRACT

We performed a randomized, controlled trial to analyse the effects of resistance training (RT) on cognitive and physical function among older adults. Fifty participants (mean age 67 years, ~60% woman) were randomly assigned to an RT program or a control group. Participants allocated to RT performed three sets of 10-15RM in nine exercises, three times per week, for 12-weeks. Control group did not perform any exercise. Variables included cognitive (global and executive function) and physical function (gait, mobility and strength) outcomes. At completion of the intervention, RT was shown to have significantly mitigated the drop in selective attention and conflict resolution performance (Stroop test: -494.6; 95%CI: -883.1; ?106.1) and promoted a significant improvement in working memory (digit span forward: -0.6; 95%CI: ?1.0; ?0.1 and forward minus backward: -0.9; 95% CI: ?1.6; ?0.2) and verbal fluency (animal naming: +1.4, 95%CI 0.3, 2.5). No significant between-group differences were observed for other cognitive outcomes. Regarding physical function, at completion of the intervention, the RT group demonstrated improved fast-pace gait performance (?0.3; 95% CI: ?0.6; ?0.0) and 1-RM (+21.4 kg; 95%CI: 16.6; 26.2). No significant between-group differences were observed for other mobility-related outcomes. In conclusion, RT improves cognitive and physical function of older adults.  相似文献   

运用念动练习法提高太极拳教学效果的实验研究     

丁勇春 《宁德师专学报(自然科学版)》2006,18(2):159-161

根据“念动练习法”的基本理论,突破武术教学只注重灌输式传授基本技术、技能忽略学生主观能动性培养的模式．通过教学实验证明,运用“念动练习法”教学策略可以提高学生的学习兴趣,增强学习的动机,从而提高高校太极拳选项课教学质量．  相似文献   

工程电流源综述     

李舒晨 《渭南师范学院学报》2001,16(2):3-7

在信号变换及电子测量中，电流源应用广泛，其性能优劣及结构特点对测量结果有直接影响。因此，在电子测量控制工程设计中应正确选用电流源电路结构及参数。  相似文献   

女大学生如何增强自我防护意识     

高燕梅 《渭南师范学院学报》2003,18(5):93-95

文章首先论述了提出这个论题的必要性，接着从了解掌握一定的科学的性知识、树立健康的符合时代进步的性观念、在恋爱交友中用理智调控感情等三个方面重点具体地论证了论题。  相似文献   

混合药膜包膜系统释放动力学研究     

石巍  张国亮  张凤宝  刘瑛 《天津大学学报(英文版)》2001,7(1):56-60

存储混合型是目前研究较多的控制释放体系 ,但由于其机理较为复杂 ,目前尚未建立合理实用的动力学模型 .以混合药膜包膜体系为研究对象 ,建立了释放动力学的简化模型并获得了解析解 .实验数据表明 ,该模型适用于描述药物装填量大于饱和溶解度的药物释放动力学行为 (相对偏差小于 3 % ) .根据该模型还从理论上分析了两种限定条件 (Dm Df和 Dm Df)下药物的释放特征 :当 Dm Df时 ,释放速率变为常数 ,达到零级释放 ,其释放速率与药膜无关 ,这为零级释放缓释体系如何控制释放速率和药物释放量提供了理论依据 :当 Dm Df时 ,药物的释放速率与药膜中的释放系数、溶解度和药物的装填量有关 ,与包膜过程无关 ,其释放过程类似于混合药膜缓释体系  相似文献   

论线性受控电源的二重性   总被引：2，自引：0，他引：2  

刘正生  朱路扬  盛宇波  徐炜炜  姜观丽 《赣南师范学院学报》2002,(3):24-27

本文从电源性和负载性两方面来阐述线性受控电源的二重性 .在其电源性的阐述中 ,突破了应用叠加定理的禁区 ,并对同一应用实例从其电源性和负载性两方面阐述 ,得出相互一致、协调的结果 ,进而将受控电源的电源性和负载性辩证地统一起来 ,使受控电源的理论更加完美  相似文献   

利用工控组态软件创建电气控制线路动态演示教案的方法     

李敏涛 《温州职业技术学院学报》2007,7(3):23-26

利用工控组态软件创建电气控制线路的原理图,模拟动态演示教案,不但可以直观地表述控制原理,还可以利用工控组态中的编程功能设置故障,使学生能尽快地理解控制线路原理,掌握故障分析和排除的能力。  相似文献