International Approaches to Whole-of-School Physical Activity Promotion     

Jaimie McMullen  Déirdre Ní Chróinín  Tuija Tammelin  Małgorzata Pogorzelska  Hans van der Mars 《Quest (Human Kinetics)》2015,67(4):384-399

Increasing physical activity opportunities in schools has emerged as a global priority among school-aged youth. As a result, many countries have designed and implemented whole-of-school physical activity initiatives that seek to increase physical activity opportunities that are available to school-aged children before, during, and after school. Considering the comprehensive school physical activity program conceptual framework, this article includes a discussion of the initiatives from four countries: Finland (Finnish Schools on the Move), Ireland (Active School Flag), Poland (PE with Class), and the United States (Let’s Move Active Schools). Background information, implementation strategies, best practices, development opportunities, and relevant research from each country will be presented. Exploring different perspectives sheds some light on the international landscape relative to whole-of-school physical activity promotion and provides direction for future and continued research and practice.  相似文献   

浅析模拟联合国活动发展中遇到的问题     

熊栎天 《乐山师范学院学报》2015,(5)

模拟联合国活动是遵照精简过后的联合国议事规则而举行的、主要由青年人参加的一种学术性质的模拟活动。它由模拟联合国培训和会议两部分组成,参与者、组织者与模拟联合国会议是其三个基本要素。文章论述了模拟联合国活动三要素及发展中面临的问题,并据此提出建议和思考。  相似文献   

Moodle环境下课程教学及评价设计应用研究——以《环境与草原保护法学》为例     

马东宇 《广播电视大学学报》2014,(4):106-114

以模块化动态学习环境Moodle为研究对象,选择内蒙古电大自建省开课程《环境与草原保护法学》作为研究样本,尝试将案例教学与模块活动设计相结合,基于Moodle环境进行在线课程教学及评价设计,在实现课程网络(移动设备)访问、在线学习和资源支持的基础上,初步探索适合内蒙古电大自身教育特点的、基于Moodle环境的在线课程设计一般流程以及实现学习建构、活动设计和效果评价的新模式,为省开课程实现完全在线学习和评价考核改革提供参考和借鉴。  相似文献   

职校德育工作理念的新思考     

王学云 《天津职业院校联合学报》2014,(9):115-117

中职学校作为培养社会技能型劳动者的主阵地,其德育应突破传统德育的弊端,走出一条现实的、理性的、确能有所成效的德育之路。观念的树立是行为的先导,所以职校德育工作者应首先树立先进的德育理念。文章从回归生活和实践,注重活动的创设等方面,强调职校德育工作者应在尊重传统理念的基础上更加注重实践德育、行为德育、体验德育、主体主动性德育等。  相似文献   

International Collaboration Activity Index: Case study of dye-sensitized solar cells     

《Journal of Informetrics》2014,8(4):854-862

International scientific collaboration has been the dominant driving force for promoting scientific and technological advancement. However, current international scientific collaboration analysis and evaluation mainly concentrate on the exploration of international collaboration network; hence, an evaluation method of international scientific collaboration is yet to be formed. In this paper, we take the dye-sensitized solar cells (DSSCs) as an empirical object and combine the international collaboration network with geographic information, which we call the International Collaboration Map, to display the international collaboration situations among countries or regions worldwide (inter-country collaboration), the collaborations among countries or regions within each continent (intra-continent collaboration), and the collaborations among continents (inter-continent collaboration) from different angles. Based on the thought of fractional count, this study introduces the indicators of collaborative country rank, international collaboration width, and international collaboration activity; the study employs the International Collaboration Activity Index (ICAI) to comprehensively measure the degree of countries or regions international collaboration at the country or region level. It systematically evaluates the differences between the active degree of relevant countries or regions in collaborative research. We use correlation analysis among the five sub-criterions and verify the rationality of index construction. K-means clustering analysis is undertaken among 84 countries or regions in the DSSCs field. The results show the formation of three groups, each with their unique international collaboration features.  相似文献   

活动理论视角下协作学习活动的基本要素     

余亮  黄荣怀 《电大教学》2014,(1):48-55

协作学习活动设计的核心和关键即是对其基本要素的分析和配置。厘清协作学习活动的基本要素,是分析和设计协作学习活动的基础。以活动理论为视角,论述了协作学习活动的要素,并在此基础上建构了协作学习的结构模型,确立了资源、角色、任务和时序四个基本要素。最后,以此四要素为基本框架,比较和分析了四个协作脚本。  相似文献   

活动理论视角下MOOC学习活动设计研究     

刘清堂  叶阳梅  朱珂 《电大教学》2014,(4):99-105

活动理论强调教学活动过程的实施要以学习者的学习活动为中心,学习活动的设计对于信息技术环境下学生的学习效果和效率有着重要影响。大规模在线开放课程（MOOC）作为一种新的在线教育模式,实践了以学习者为中心的教学理念,革命性地颠覆了传统课堂的组织与管理方式。与传统网络课程相比,MOOC更强调教学模式的完整性．并以优质的教育资源和良好的师生交互点燃了国内外众多学习者的参与热情。为此．通过以活动理论为指导,结合学习活动设计的基本框架和MOOC的特点,分析MOOC学习活动的类型、学习资源和环境、学习者角色以及分布于社会网络中的交互信息等因素,尝试构建一个MOOC环境下学习活动设计模式,为MOOC课程在国内的设计和开发．提供理论框架和实践参考。  相似文献   

Biochemical characterization of the recombinant schistosome tegumental protein SmALDH_312 produced in E. coli and baculovirus expression vector system     

《Electronic Journal of Biotechnology》2021

BackgroundThe heterologous expression of parasitic proteins is challenging because the sequence composition often differs significantly from host preferences. However, the production of such proteins is important because they are potential drug targets and can be screened for interactions with new lead compounds. Here we compared two expression systems for the production of an active recombinant aldehyde dehydrogenase (SmALDH_312) from Schistosoma mansoni, which causes the neglected tropical disease schistosomiasis.ResultsWe produced SmALDH_312 successfully in the bacterium Escherichia coli and in the baculovirus expression vector system (BEVS). Both versions of the recombinant protein were found to be active in vitro, but the BEVS-derived enzyme showed 3.7-fold higher specific activity and was selected for further characterization. We investigated the influence of Mg²⁺, Ca²⁺ and Mn²⁺, and found out that the specific activity of the enzyme increased 1.5-fold in the presence of 0.5 mM Mg²⁺. Finally, we characterized the kinetic properties of the enzyme using a design-of-experiment approach, revealing optimal activity at pH 7.6 and 41°C.ConclusionsAlthough, E. coli has many advantages, such as rapid expression, high yields and low costs, this system was outperformed by BEVS for the production of a schistosome ALDH. BEVS therefore provides an opportunity for the expression and subsequent evaluation of schistosome enzymes as drug targets.How to cite: Harnischfeger J, Beutler M, Salzig D, et al. Biochemical characterization of the recombinant schistosome tegumental protein SmALDH_312 produced in E. coli and baculovirus expression vector system. Electron J Biotechnol 2021;54. https://doi.org/10.1016/j.ejbt.2021.08.002  相似文献   

创先争优：高校践行群众路线的实现路径     

张必丽  彭云霞  刘兵 《郧阳师范高等专科学校学报》2014,(4):89-91

作为先进性社会组织,高校具有创先争优的潜存性动力和践行群众路线的组织优势。模块化组织、主动性实践和制度性保障等激发创先争优的机制性措施为高校长效践行群众路线提供了内生动力。  相似文献   

英国开放大学的科研活动及其启示     

张廷亮 《连云港师范高等专科学校学报》2014,(3)

英国开放大学的建立是人类20世纪后期教育发展的最大创新,被誉为世界成人教育发展史上的里程碑。英国开放大学致力于远程教育技术的研究,大力开展学科研究,培养硕士生与博士生,开展积极的学术交流,开展科研培训、社会服务与合作研究项目,开辟"开放研究在线"。英国开放大学的科研活动体现了高等教育发展的规律,推进了现代远程教育的发展。这些经验对于我国开放大学建设具有重要借鉴价值。  相似文献