穴位埋线治疗对冠心病稳定型心绞痛的疗效观察     

刘卫平  林展增  吴建琼 《河北北方学院学报(医学版)》2002,19(6):8-9

目的 :观察穴位埋线对冠心病稳定型心绞痛的疗效。方法 :按随机对照方法 ,分为治疗组 32例 ,对照组 (长效硝苯地平 ) 31例。治疗 8周 ,观察心肌缺血发作次数、持续时间及缺血总负荷等指标。结果 :两组治疗前后各观察指标有显著差异 ,P <0 .0 1。两组之间比较无明显差异 ,P >0 .0 5。结论 :穴位埋线法能显著改善心肌缺血。  相似文献   

第八届全运会游泳比赛述评     

刘明辉 《体育科学研究》1998,(2)

就第八届全运会游泳比赛分析我国游泳的整体水平及各队实力,指出中国游泳存在不容乐观的一些新问题,并希望中国游泳正视现状,扬长避短,迎接挑战,再创辉煌。  相似文献   

论散手距离及其控制     

张磊  李宁 《南京体育学院学报(社会科学版)》2001,15(4):94-95

距离控制能力可体现出散手实战水平的高低，通过对散打距离的重新划分，简析对培养精确距离感的作用，使学员更加有效地运用不同的距离作战，不断提高利用距离控制对手的能力．以达到全面提高散手实战水平的目的。  相似文献   

巨型嗅沟脑膜瘤的手术治疗体会     

孙志强  刘熙鹏  张晓华  彭继生 《河北北方学院学报(医学版)》1997,(3)

本文报告4例巨型嗅沟脑膜瘤的手术治疗情况。本组病例肿瘤最小为7.5×8.0cm,最大为11.5×10.0cm。均采用前额冠状头皮切口,双额骨瓣开颅,肉眼直视下分块完全切除肿瘤,术后恢复良好,无死亡,随访1～5年情况良好。文中重点对本病的早期诊断和手术治疗方法进行了讨论。  相似文献   

Individual to collaborative: guided group work and the role of teachers in junior secondary science classrooms     

Dennis Fung  Wai-mei Lui 《International Journal of Science Education》2016,38(7):1057-1076

This paper, through discussion of a teaching intervention at two secondary schools in Hong Kong, demonstrates the learning advancement brought about by group work and dissects the facilitating role of teachers in collaborative discussions. One-hundred and fifty-two Secondary Two (Grade 8) students were divided into three pedagogical groups, namely ‘whole-class teaching’, ‘self-directed group work’ and ‘teacher-supported group work’ groups, and engaged in peer-review, team debate, group presentation and reflection tasks related to a junior secondary science topic (i.e. current electricity). Pre- and post-tests were performed to evaluate students’ scientific conceptions, alongside collected written responses and audio-recorded discussions. The results indicate that students achieved greater cognitive growth when they engaged in cooperative learning activities, the interactive and multi-sided argumentative nature of which is considered to apply particularly well to science education and Vygotsky’s zone of proximal development framework. Group work learning is also found to be most effective when teachers play a role in navigating students during the joint construction of conceptual knowledge.  相似文献   

群体判断的一种方法     

李洪杰  刘丙学  许云明 《临沂师范学院学报》1996,(6)

利用改进的三标度法，给出群体判断的一种简单、实用的有效方法．  相似文献   

Stitching Codeable Circuits: High School Students’ Learning About Circuitry and Coding with Electronic Textiles     

Breanne K. Litts  Yasmin B. Kafai  Debora A. Lui  Justice T. Walker  Sari A. Widman 《Journal of Science Education and Technology》2017,26(5):494-507

Learning about circuitry by connecting a battery, light bulb, and wires is a common activity in many science classrooms. In this paper, we expand students’ learning about circuitry with electronic textiles, which use conductive thread instead of wires and sewable LEDs instead of lightbulbs, by integrating programming sensor inputs and light outputs and examining how the two domains interact. We implemented an electronic textiles unit with 23 high school students ages 16–17 years who learned how to craft and code circuits with the LilyPad Arduino, an electronic textile construction kit. Our analyses not only confirm significant increases in students’ understanding of functional circuits but also showcase students’ ability in designing and remixing program code for controlling circuits. In our discussion, we address opportunities and challenges of introducing codeable circuit design for integrating maker activities that include engineering and computing into classrooms.  相似文献   

发达国家研究生教育外部质量保障的经验与启示     

刘再春 《中国高教研究》2010,(8)

发达国家研究生教育外部质量保障存在三种模式即政府主导型大陆模式、民间主导型美国模式和多元互动型英国模式,它们具有各自的特点.同时,为了适应时代发展,它们表现出一系列共性特征和趋势,满足了社会时研究生质量保障的普遍要求,这些国家外部质量保障的先进经验和共性趋势特征,对于推进中国研究生教育外部质量保障体系建设有重要借鏊作用.  相似文献   

Self-concept among hearing Chinese children of deaf parents     

L M Chan  B Lui 《American annals of the deaf》1990,135(4):299-305

This paper discusses a study of Chinese children in Hong Kong that compared the self-concepts of hearing children of deaf parents with the self-concepts of hearing children of hearing parents. The study was based on the responses to a questionnaire given to 42 deaf couples and their 70 hearing children, and 41 hearing couples and their 82 hearing children. It found no differences in the self-concepts of hearing children of deaf parents and hearing children of hearing parents. However, it did find that deaf parents had lower self-concepts than hearing parents.  相似文献   

引文网络的主路径特征研究——以富勒烯领域为例     

樊志伟  韩芳芳  刘佳 《图书情报工作》2013,57(3):17

以富勒烯领域引文数据为样本,通过HistCite^TM生成不同规模与格式的引文网络,利用Pajek集成的三种主路径算法分析不同数据格式、不同网络规模的主路径组分与形态差异,运用曲线拟合方法探索主路径规模与主路径长度间的关系。结果表明:三种主路径算法结果没有显著差异,主路径长度与网络规模呈对数关系,主路径在网络规模约为总顶点数40%后趋于稳定。  相似文献