大学英语课堂教师话语调查研究

教师话语在组织课堂教学和语言习得中起着根本性作用。由对周口师范学院150名学生问卷调查和对6位外国语学院教师的访谈发现:教师话语量明显大于学生话语量;教师话语输出较形式化,话轮转换较机械;教师话语中的展示性问题较参阅性问题多;课堂反馈简单积极,惯用直接纠错等。基于此,从教师角色、课堂提问方式、语速把握、师生互动等方面提出改进大学英语教师话语的措施,以期有助于教师调节和规范自己的课堂语言,提高大学英语课堂教学效果。     

虫媒登革病毒的研究——Ⅱ.登革病毒非结构蛋白NS1的纯化、鉴定及其在临床检测应用

本文从纯化Den2 NS1,Mab入手,自制了Mab亲和层析系统,从感染Den2的细胞膜中,分离提取了天然的Den 2 NS1双体,比较其NGC株与我国地方株(H-87)NS1的理化性质及组成,并对某些重要的生物学性质进行了综合性研究。同时,利用上述研究结果建立了检测DF病人血清特异NS1抗体的新方法,探索其协助临床诊断及研究的可能性。     

Clinical detection and movement recognition of neuro signals

INTRODUCTION Human limbs are complex, delicate systems.Their reconstruction, both for appearance and forfunction compensations, proves to be complicatedprojects. With the development of science and tech-nology, both researchers and disabilities hope to haveartificial limb much more perky, comfortable, dex-terous and effective. Although thousands of pros-thetic limbs are commercially available worldwide,most of them, from mechanical styles to electricstyles, from motion controlled t…     

A symplectic eigensolution method in transversely isotropic piezoelectric cylindrical media

INTRODUCTION Since the phenomenon of piezoelectricity in natural crystals was discovered in 1880, it has been applied in many fields, such as smart structure, sensing devices and active control, because of its special properties. Combining electrical behavior with mechanical deformation is the special property which attracted great interest of researchers. Many models have been developed for studying piezoelec- tric effects. Dunn and Wienecke (1996) used Green’s functions for transverse…     

中年自损话防范

中年人处于成果最多阶级,是事业的黄金时期。也是机体由盛转衰时期。为了使他们能发挥更大的作用,做好中年的自损保健预防工作,是我国当前一项非常重要的有现实意义的工作。     

大学与产业科研合作的权益保障机制研究

大学与产业科研合作涉及到的相关利益主体有大学、研究者及产业。大学与产业科研合作基于自愿、平等和互利的原则,但相关利益主体的基本权益保障是合作的前提。为确保产学科研合作顺利、有序、健康地发展,产学科研合作必须建立和完善权益保障机制,包括严密的保密机制和严格的技术合同管理机制。     

Consolidation behavior of cement- and lime/cement-mixed column foundations

The consolidation behavior of mixed in place cement- and lime/cement-mixed column was studied. Consolidation of the composite foundation was modeled as a three-dimensional axi-symmetric problem. The authors used the finite difference method to obtain the pore pressure variation with time at any location below the surface. A computer program developed by the authors was used to draw some interesting conclusions about the consolidation behaviors of cement- and lime/cement-mixed pile foundation. Finally, a combined model including the permeability coefficients of cement-mixed piles and soil, was studied and its feasibility was evaluated. Project supported by National Natural Science Foundation of China (No. 59908012) and Education Ministry of China     

谈新闻编辑的创造性劳动

以办报实例提出了新闻编辑工作是对报纸的总体策划,是对新闻稿件的提质和升华,也是编辑人员新闻业务和政治素质的综合体现.新闻编辑是报纸出版的前期"设计者",中期"组织者",最后"把关者".报纸出版是一项需要编辑的创造性劳动来完成的系统工程.因此,在整个报纸新闻传播的过程中,新闻编辑的创造性劳动已由局部环节发展成为决定因素.     

远程教育学习支持服务满意度调查分析

远程教育机构关注的焦点在于学生的学。本研究把学习者的满意度作为学习支持服务的衡量标尺,从服务对象出发,展开学习支持服务满意度调查。结果表明,学习者对学习支持服务总体上呈现出比较满意的状态。专业对学生满意度影响较为显著;就地域来看,苏北、苏南区域差异变得不甚明显。研究者认为,必须根据学习者的需求,针对学习支持服务中存在的问题,更新理念,投入更多的人力与物力,为建设开放大学打下坚实基础。     

试论呼伦贝尔市治安保险的状况和发展趋势

本文分析了呼伦贝尔市治安保险的状况和目前治安保险存在的问题,并提高了呼伦贝尔市治安保险的发展趋势.