关于"网络取代论"的反思     

佘文斌 《中国远程教育(综合版)》2002,(10):67-70

网络时代的到来,引发了人们对传统大众传媒生存前景的忧思,网络独具魅力的传播特质使很多人认为传统大众传媒将逐渐失去生存空间,为网络所取代.本文选取了历史、技术和社会三个理论视角,对"网络取代论"进行反思.通过分析可知,"网络取代论"并不具有深厚的现实根基.  相似文献   

构建基于大教学观的德育教学模式     

胡泽民  佘秋平  黄少波 《高教论坛》2002,(2):14-16

本文通过阐述对大教学观内涵的认识 ,提出大教学观下的德育教学模式 ,并构建德育教育的整体模式和德育教师教学准备与教学形式的微观模型  相似文献   

Concepts of a higher hierarchical level require more dual situated learning events for conceptual change: A study of air pressure and buoyancy     

Hsiao-Ching She 《International Journal of Science Education》2013,35(9):981-996

This article examines the process of students' conceptual changes in respect of air pressure and buoyancy as a result of instructing with the Dual Situated Learning Model. The dual situated learning events of this model were designed according to the students' ontological viewpoint on the science concepts as well as on the nature of these concepts. Results demonstrated that the notion of buoyancy required more dual situated learning events for conceptual change to occur than that for air pressure. Instead of attributing the difficulty involved in conceptual change to the mismatch of ontological category of the concepts, the author proposes that the hierarchical level of the scientific concepts would determine how easy or difficult it is to bring out a conceptual change. Concepts of higher hierarchical level subsume more essential underlying concepts, thus making it more difficult for conceptual changes to occur.  相似文献   

DSLM Instructional Approach to Conceptual Change Involving Thermal Expansion     

Hsiao-Ching She 《Research in Science & Technological Education》2013,31(1):43-54

This article examines the process of students' conceptual change involving thermal expansion as a result of employing the Dual Situated Learning Model (DSLM) (She, 2001, 2002) as a classroom instructional approach. The dual situated learning events of this model are designed according to the students' ontological viewpoint of the science concepts as well as the nature of these concepts. Moreover, these events serve two functions in creating dissonance with the pre-existing knowledge and providing new schema for constructing a more scientific view of the concept. DSLM has been shown to promote students' conceptual change using one-to-one instructional procedure (She, 2002). This study further demonstrates that DSLM holds great potential to facilitate the conceptual change process involving thermal expansion through classroom instruction, even the difficult concept or higher hierarchical level one.  相似文献   

关于学校院(系)党政共同负责就业工作系统探讨     

佘一萍 《佳木斯教育学院学报》2013,(1):161-162

在当前高等教育大众化的背景下,大学生就业已成为民生问题的重中之重,是高校发展的"生命线"。而随着我国高等教育改革的不断深化和发展,毕业生就业工作的中心已由学校逐步下移到院(系)。党政共同负责体制下的院(系)又该如何处理好毕业生就业问题?学校又该如何应对毕业生就业工作中心的转移?本文将对学校院(系)党政共同负责就业工作进行系统探讨。  相似文献   

高职院校教师职业能力持续提升的途径     

张涉 《杨凌职业技术学院学报》2009,8(4):54-56

在分析高职院校教师职业能力构成的基础上,提出了教师职业能力持续提升的途径。  相似文献   

新形势下大学物理演示实验的利用   总被引：3，自引：0，他引：3  

李海宝  刘炳胜  金永君  李社  刘辉 《实验室研究与探索》2009,28(4)

新形势对物理演示实验教学提出了新要求.从深化教学改革角度来看.应坚持优先使用演示实验,推进其与现代教育手段的融合,促进其紧跟当代科技发展步伐和密切联系生产生活实际,深入挖掘其多元功能,特别是在培养学生创新实践能力方面的突出作用.从利用教学条件的角度来看,要通过实施精细化管理,构建可持续发展的物理演示实验基地,强化和制度保障演示实验得到最大限度的利用.  相似文献   

思想政治教育的科学研究现状,特点及发展趋势探析   总被引：5，自引：2，他引：3  

佘双好 《思想理论教育导刊》2009,(10)

通过对思想政治教育第一批学者研究方法的个案研究、<思想教育研究>杂志15年发表论文和中国学术期刊网发表的思想政治教育的"研究"论文的文献计量学研究,可以描述出思想政治教育研究的现状,总结出思想政治教育研究的经验思辨性特点以及实证研究和多学科研究的不足,反映思想政治教育研究中思辨研究与实证研究并重,传统研究、量化研究与质性研究相整合,对象研究、实务研究与自身研究相统一以及学术研究与行动研究相结合的发展要求.  相似文献   

Finite-time lag synchronization of master-slave complex dynamical networks with unknown signal propagation delays     

Xin Wang  Xinzhi Liu  Kun She  Shouming Zhong 《Journal of The Franklin Institute》2017,354(12):4913-4929

This paper studies the finite-time lag synchronization issue of master-slave complex networks with unknown signal propagation delays by the linear and adaptive error state feedback approaches. The unknown signal propagation delays are fully considered and estimated by adaptive laws. By designing new Lyapunov functional and discontinuous feedback controllers, which involves the estimated error rather than the general synchronization error, sufficient conditions are derived to ensure lag synchronization of the networks within a setting time. It is interesting to discover that the setting time is related to initial values of both the estimated error and the estimated unknown signal propagation delays. Finally, two numerical examples are given to illustrate the effectiveness and correctness of the proposed finite-time lag synchronization criteria.  相似文献   

喷施铁肥对铁蛋白转基因水稻的稻米增铁效应研究   总被引：1，自引：0，他引：1  

李梅  郭泽建  陆韵  包劲松  舒庆尧  沈圣泉 《科技通报》2008,24(5)

以豌豆铁蛋白转基因富铁水稻纯系(Fer34)及其原始对照(秀水11)为试材,开展有关转基因富铁系稻米铁含量积累和变异规律研究.结果表明,与CK相比,转基因富铁稻(Fer34)确有更强的稻米积累铁含量功能,但这种富铁程度与所处土壤、气候等生态环境有关;对其灌浆期进行叶面喷施铁肥处理,可以明显增加其稻米的铁含量,且不改变稻米主要外观和蒸煮食用品质,对淀粉特性和结构的RVA谱参数也无明显影响.这表明选用铁蛋白转基因富铁稻,并结合灌浆期喷施铁肥的栽培技术,来生产高效富铁大米,解决人类铁营养缺乏症的技术路线方法是可行的.  相似文献