高校内部管理制度建设存在的问题、成因及对策分析   总被引：8，自引：0，他引：8  

谭秀森 《教育发展研究》2006,26(19):65-68

一、高校内部管理制度建设的基本目标和要求 1998年颁布实施的<中华人民共和国高等教育法>(简称<高等教育法>)第三条规定明确了我国高等教育的性质,即社会主义性质.<高等教育法>第五条还规定了高等教育的任务主要是通过培养专门人才等活动来对社会的发展起作用,而这些活动通常是由其专门机构--高等学校来实现的.  相似文献   

信息技术和新教材课程整合应注意的问题     

谭钦旋 《教育信息技术》2003,(8):36-37

基础教育课程的改革要求大力推进信息技术在教学过程中的普遍应用,信息技术与新教材的整合对传统的教学观念、学习方式、教学策略等,将产生深刻的变革.  相似文献   

An evaluation of the use of continuous assessment in the teaching of physiology   总被引：1，自引：0，他引：1  

C. M. Tan 《Higher Education》1992,23(3):255-272

The level of understanding achieved by a class of 160 1st-year medical students was assessed from their answers to exam questions related to a series of physiology lectures in which students were taught for conceptual understanding. Questionnaire data showed that about 90% of the class perceived the subject matter to be relevant.Information collected by interview from a sample of 30 students indicated that frequent summative assessment exerted a profound negative influence over their learning. Students adopted a surface reproductive approach aimed at passing the exams rather than at understanding the subject matter. Lectures failed to affect the way that students represented, structured and selected their knowledge, which remained encapsulated in the textbook context and was non-functional.Assessments comprised a high proportion of multiple-choice questions and emphasized low-level skills resulting in the establishment of a hidden curriculum. Furthermore, the curriculum failed to provide appropriate opportunities for students to consolidate and internalize information presented in lectures. The students had inadequate abstract reasoning and integration skills and so were unable to ignore the hidden curriculum.In the absence of high-level conceptual development students cannot apply theory to practice. It is argued that the early introduction of clinical experiences (in year-2) cannot promote effective integration between theory and practice and the development of an holistic attitude and heuristic thinking, when students lack prerequisite basic reasoning skills and do not know how to learn meaningfully.  相似文献   

高等植物开花过程中光周期诱导的分子模型     

谭远德  王永锐 《中山大学学报论丛》1992,(3)

本文综合了经典的和最近的一些研究资料,根据植物光周期诱导与光敏色素的关系,光敏色素的物理化学性质及其在植物体内和细胞中的分布和定位、光周期诱导过程中物质代谢的变化,建立了一种光敏色素控制植物开花的分子模型。此模型称为光敏色素-光感蛋白-cAMP环化酶或其它诱发产生第二信使的蛋白质的偶联模型。  相似文献   

带误差的Halpern公开问题的迭代逼近     

李建军  谭英双 《宁夏师范学院学报》2007,28(3):34-37

本文在更一般条件下研究了Halpern公开问题,既把Halpern迭代序列推广到具有误差的迭代序列,同时又把条件非扩张推广到渐近非扩张.从而推广和改进了Halpern公开问题的相应结果.  相似文献   

赏玩:齐梁宫体诗之女性观     

谈艺超  农辽林 《南宁师范高等专科学校学报》2004,21(4):16-18

本文将齐梁宫体诗表现出的女性观概括为“赏玩”二字并寻绎出其在文学发展进程中之意义,试图据此为齐梁宫体诗在文学史上的地位重新作出适当的评价。  相似文献   

湍流大气激光束扩展效应的研究     

谭启培  黄兴  谭冠龙  艾勇 《五邑大学学报(社会科学版)》1990,(Z1)

本文讨论了激光扩展的机制问题,给出了短期和长期扩展光斑半径ps和PL的均方值的近似计算方法,提供了一套测量短期扩展效应的技术,进行了在静态空气、湍流空气和暖风场下光束扩展的测量,所得结果与理论值比较吻合,光束扩展谱的统计分布近似于正态分布。  相似文献   

学“问”的困惑——探讨“学会提问”的几个疑难问题     

李祖祥  唐湘桃 《教育学术月刊》2005,(11):46-47,53

21世纪的社会需要具有问题意识和提问能力的人才,这种需要从未像现在这样紧急和迫切。时代在呼唤我们“学会提问”。然而,事实证明我们对学会提问的认识存在很大分歧,“学会提问是教学目的还是为教学服务的手段?”、“小学生不可能提出有研究价值的问题,训练小学生提问是不是浪费时间?”、“学生在课堂上提出的问题是‘虚假的’还是‘真实的’?怎样有效的培养学生提出真实的、有价值的问题?”此类问题亟待解决。  相似文献   

修正小齿轮表面齿形降低圆弧齿轮传动误差     

周章添  谭小红 《浙江工贸职业技术学院学报》2005,5(3):48-51

齿轮由于传动中的磨损等原因,会引起传递误差,由于传递误差函数是周期性、线形的,会引起从动轮的跳动.文章利用反求法,用二次函数代替线形函数,求出齿轮传动方程,进而对小齿轮齿面修形,减小误差波动,并对其进行仿真.  相似文献   

Involvement of endothelial progenitor cells in the formation of plexiform lesions in broiler chickens: possible role of local immune/inflammatory response     

Xun Tan  Fan-guo Juan  Ali Q. Shah 《Journal of Zhejiang University. Science. B》2017,18(1):59-69

Plexiform lesions (PLs), which are often accompanied by perivascular infiltrates of mononuclear cells, represent the hallmark lesions of pulmonary arteries in humans suffering from severe pulmonary arterial hypertension (PAH). Endothelial progenitor cells (EPCs) have been recently implicated in the formation of PLs in human patients. PLs rarely develop in rodent animal models of PAH but can develop spontaneously in broiler chickens. The aim of the present study was to confirm the presence of EPCs in the PLs in broilers. The immune mechanisms involved in EPC dysfunction were also evaluated. Lungs were collected from commercial broilers at 1 to 4 weeks of age. The right/total ventricle ratios indicated normal pulmonary arterial pressures for all sampled birds. Immunohistochemistry was performed to determine the expressions of EPC markers (CD133 and VEGFR-2) and proangiogenic molecule hepatocyte growth factor (HGF) in the lung samples. An EPC/lymphocyte co-culture system was used to investigate the functional changes of EPCs under the challenge of immune cells. PLs with different cellular composition were detected in the lungs of broilers regardless of age, and they were commonly surrounded by moderate to dense perivascular mononuclear cell infiltrates. Immunohistochemical analyses revealed the presence of CD133⁺ and VEGFR-2⁺ cells in PLs. These structures also exhibited a strong expression of HGF. Lymphocyte co-culture enhanced EPC apoptosis and completely blocked HGF-stimulated EPC survival and in vitro tube formation. Taken together, this work provides evidence for the involvement of EPCs in the development of PLs in broilers. It is suggested that the local immune cell infiltrate might serve as a contributor to EPC dysfunction by inducing EPC death and limiting their response to angiogenic stimuli. Broiler chickens may be valuable for investigating reversibility of plexogenic arteriopathy using genemodified inflammation-resistant EPCs.  相似文献