区块链之于高校网络学习共同体构建的应用前瞻     

叶俊飞  赵建霞 《高教论坛》2020,(3):82-86

在科技的推动下,远程教育、虚拟知识社区、MOOC等形式的网络学习共同体成为了教育界的关注焦点,而在实践过程中,它们也遭遇了诸多困难与障碍。同时,随着区块链技术及其应用风潮的兴起,越来越多有识之士看到了其可能会给教育领域所带来的革命性影响。本文揭示了区块链技术在高校网络学习共同体建设过程中的应用前景。首先总结了区块链的基本技术特质与优势:去中心化账本、智能合约以及数字通证,接着论述了高校网络学习共同体的发展历程及其在建设中所遇到的阻碍,随后分析、探讨了区块链技术应用于网络学习共同体的可行性及阶段性:知识共享、知识共建以及形成无边界的学习网络。最后,总结认为:基于区块链技术,人们能够打造一个功能丰富、安全可信、公开透明的网络平台,从而建设一个无边界的高校网络学习共同体。  相似文献   

Extending Face-to-Face Interactions: Understanding and Developing an Online Teacher and Family Community     

Chun Zhang  Jianxia Du  Li Sun  Yi Ding 《Early Childhood Education Journal》2018,46(3):331-341

Technology has been quickly changing human interactions, traditional practices, and almost every aspect of our lives. It is important to maintain effective face-to-face communication and interactions between teachers and families. Nonetheless, technology and its tools can also extend and enhance family–teacher relationships and partnerships. This paper reviews definitions for online teacher and family community in early childhood programs and closely examines the literature associated with several key elements that comprise the community as recognized by the authors. Key elements that emerged were common or shared goals, interactivity, collaboration, trusting relationships, and sense of belonging or connectedness for a working online community, especially among teachers working with families of children with disabilities. Additionally, practical suggestions for teachers and family members are provided for developing and collaborating on an online community.  相似文献   

Predictors for students’ self-efficacy in online collaborative groupwork     

Du  Jianxia  Fan  Xitao  Xu  Jianzhong  Wang  Chuang  Sun  Li  Liu  Fangtong 《Educational technology research and development : ETR & D》2019,67(4):767-791

Educational technology research and development - This study examines factors related to student self-efficacy beliefs in on-line groupwork. Participants in this study were 204 graduate students...  相似文献   

What influences Chinese undergraduates’ time management in online groupwork? An empirical investigation     

Jianzhong Xu  Jianxia Du  Xitao Fan 《教育心理学》2017,37(6):757-771

The present investigation examines models of factors influencing time management in online groupwork for Chinese undergraduates. Multilevel findings showed that time management was positively related to five individual-level variables, including online courses taken previously, learning-oriented reasons, arranging the environment, help-seeking and feedback. Furthermore, at the group level, time management was positively correlated with feedback and learning-oriented reasons. Our investigation suggests that results concerning feedback and arranging the environment have the potential to be applicable in cross-cultural settings. It further suggests that time management may be influenced by cultural differences (eg value of education and polychromic time orientation). Finally, our result concerning help seeking lends empirical support to the theoretical claim that seeking help may serve to enhance individuals’ efforts to manage their work, in the context of Chinese undergraduates’ time management in online groupwork.  相似文献   

Predictors for Chinese students’ management of study environment in online groupwork     

Jianxia Du 《教育心理学》2016,36(9):1614-1630

Management of the study environment is crucial to the learning process, and this management in an online class setting is even more challenging. This study investigates models of environmental structuring in online groupwork in China, as reported by 307 graduate students in 80 groups. At the group level, environment management was positively associated with earning-oriented reasons. At the individual level, environment management was positively associated with feedback, peer-oriented reasons and help seeking. In addition, males were less likely to take initiatives in arranging the study environment.  相似文献   

实验用计算机红外遥控机器人控制系统的研制     

张建峡  叶朝锋  徐云 《实验技术与管理》2009,26(5)

结合国内实验教育、教学发展的需要,运用计算机技术、红外无线技术、单片机技术,设计研制了实验用计算机红外遥控机器人的控制系统.该系统可在上位机编写程序、控制机器人动作,充分发挥了计算机的优势;使用红外无线传输技术在计算机和机器人之间传输命令和数据.系统的各个部分采用模块化设计,并定义了统一的接口,二次开发方便.介绍了该系统的硬件系统设计、软件设计及红外遥控功能的实现.  相似文献   

创作共用协议在机构知识库建设中的应用与意义   总被引：1，自引：1，他引：0  

刘玉婷  马建霞 《图书情报工作》2009,53(15):42-45

介绍创作共用协议的起源、包含的基本权利及可以保留的权利,分析当前IR建设中存在的版权问题,列举创作共用协议在开放存取资源中的应用,并阐述创作共用协议在IR建设中的意义。  相似文献   

PDF科技论文语义元数据的自动抽取研究   总被引：1，自引：0，他引：1  

张秀秀  马建霞 《现代图书情报技术》2009,3(2):102-105

在分析PDF文件结构的基础上,解析PDF文件的内容流,并采用基于规则的匹配方法和基于格式的定位方法,自动抽取科技论文中的语义元数据信息。实验结果表明,上述方法对标题、作者等重要的语义元数据信息能够达到较好的抽取效果。  相似文献   

江苏省成年人体质健康促进干预项目的Logistic回归分析     

傅建霞 《首都体育学院学报》2010,22(3)

筛选出不同目标人群体质健康促进优先干预项目,降低和控制影响人们体质健康的危险因素,构建体质研究与健康促进相结合的工作平台,促进全民健身计划与健康促进计划的有机结合,为政府制定健康促进干预决策提供可靠的理论依据.根据2005年江苏省国民体质监测数据资料,采用Logistic回归分析法,对影响不同人群体质健康水平的主要行为因素进行分析,筛选出不同目标人群体质健康促进优先干预项目.结果显示:不同人群体质健康水平的影响因素差别很大,农民、城镇体力劳动者、城镇非体力劳动者的最重要的影响因素分别为体育锻炼、工作时间和坐位活动;吸烟人群、锻炼人群的影响因素差别也较大.结论:加强体育锻炼、控制工作时间和减少坐位活动分别为这3类人群最重要的健康促进干预项目,可有针对性地提高目标人群的体质健康水平.  相似文献   

国外图书馆非文本资源建设与服务现状分析及对我国的启示     

陈春  李娜  马建霞 《图书情报工作》2015,59(10):53-59

[目的/意义]揭示与分析国外图书馆对除学术论文和专著外,学术研究对音频、视频、图片等类型资源的建设情况及服务现状,可以为我国图书馆非文本资源建设提供借鉴,并促进图书馆提升服务能力。[方法/过程]收集整理美、英、德、法等国家图书馆以及知名研究型图书馆的非文本资源数字化项目进展情况,梳理非文本资源建设政策、数字化项目内容以及服务现状。利用文献综述的方法对2008-2014年度Web of Science中有关音频、视频、地图、音乐和游戏5种主要的非文本资源的论文进行服务现状研究的归纳分析。[结果/结论]我国图书馆应该借鉴国外图书馆在非文本资源建设方面的先进经验,从制定政策规划、规范元数据标准、资源自建与引进相结合、挖掘网络开放资源和期待与出版商及流媒体机构的实质性合作5个方面加强非文本资源建设工作。  相似文献