在线教学效果评价及质量保障体系建设

2020年疫情背景下教育部停课不停学的方案以多元化在线教学的形式实施.大规模在线教学同时启动对我国在线教学质量保障提出新的挑战,如何保障效果并持续提高在线教学质量成为社会关注的焦点问题.基于在线教学实施效果及质量保障策略的分析,参照《欧洲在线教学质量评价标准框架》,为保障在线教学效果提出以下建议:国家建立在线教学质量标...     

基于语义矩阵的图像检索相关反馈技术

针对基于语义网络的图像检索中的过反馈问题,本文提出了将语义网络转换为语义矩阵,采用基于多用户相关反馈的投票机制,可有效地克服过反馈.在此基础上提出了一种新颖的新图添加策略和处理语义向量查询的有效方法,最后指出了还需进一步研究的问题.     

北京高校大学生对授课教师满意度的实证研究

中国高等教育由精英教育向大众教育转变的过程中,提高学生对授课教师满意度,并将满意度作为评估、调整授课教师相关行为表现的标准这一问题显得尤为重要。本研究以北京大学生为主要研究对象,利用SPSS软件对数据进行统计分析,通过相关性及回归分析等构建出学生高满意度的授课教师素质模型。希望为各高校评估授课教师、授课教师进行自我调整提供一些参考,以建立一种新的良好的教学关系,从而更加有效地推动教学、教育的发展。     

Evaluating effects of atmospheric CO2 on stability of global climate: a cell-to-cell mapping approach

Atmospheric carbon dioxide concentration [CO2], incoming solar radiation and sea ice coverage are among the most important factors that control the global climate. By applying the simple cell-to-cell mapping technique to a simplified atmosphere-ocean-sea ice feedback climate model, effects of these factors on the stability of the climatic system are studied. The current climatic system is found to be stable but highly nonlinear. The resiliency of stability increases with [CO2] to a summit when [CO2] reaches 290 μL/L which is comparable to the pre-industrial level, suggesting carbon dioxide is essential to the stability of the global climate. With [CO2] rising further, the global climate stability decreases, the mean ocean temperature goes up and the sea ice coverage shrinks in the polar region. When the incoming solar radiation is intensified, the ice coverage gradually diminishes, but the mean ocean temperature remains relatively constant. Overall, our analysis suggests that at the current levels of three external factors the stability of global climate is highly resilient. However, there exists a possibility of extreme states of climate, such as a snow-ball earth and an ice-free earth.     

Transforming,storing and consuming athletic experiences: a coach’s narrative of using a video application

The analysis of sport performance in competitive contexts has become synonymous with the use of a range of software applications and hardware e.g. heart rate monitors and gps systems. With the prevalence of technology in mind, a small but growing corpus of literature has begun to consider this phenomenon and its influence upon the coaching process. This study adds to this literature by detailing the autoethnographic experiences of a case study coach; Derek. A contextualised and richly described narrative account of Derek’s experience of using coaching applications is provided. Analysis of Derek’s narrative suggests that technology can be a useful means by which individuals make sense of their experience. Specifically, (1) technology can be a ‘ready-to-hand’ instrument that enhances the coaching process. Unfortunately, (2) technology may become the only and ‘calculative’ means by which individuals come to understand their performance. In such instances, it is important to note that (3) the videos we use to understand our performance are transformed and incomplete representations of lived athletic experiences. Thus, Derek’s story illustrates how technology can be both an enabler and barrier to athletes who wish to holistically understand their own lived experiences and engage in coach-athlete relationships. The accompanying analysis draws upon concepts from Heideggerian philosophy to add insight into the use of technology within the coaching process. In so doing, the study prompts coaches to critically view their coach-athlete relationships as situated in a wider world which contains, and can be mediated by, technology. In addition, Derek’s story (re)directs researchers and coaching practitioners interested in technology to a useful literature (philosophy of technology) which may further inform their understanding of coach-athlete relationships.     

对足球移动能力训练的思考

运用文献资料法、逻辑分析法和经验总结法,对足球运动员移动能力训练进行研究.指出,移动能力是足球技能的重要组成部分,与球员的比赛表现密切相关.在对移动方式特征和分类进行分析梳理的基础上,针对长期被忽视的发展感知能力和移动效果反馈两方面,提出足球移动能力训练的内容和重点,以及不同训练阶段的训练要点.认为,发展移动能力要符合力学原理、结合专项技术训练,最终实现训练能力向比赛能力的转化.     

社区—社会体育组织—社会体育指导员联动运行机制研究

摘要：主要采用文献资料法,以社会嵌入理论为视角,探析“社区—社会体育组织—社会体育指导员”联动运行机制及其实施过程中急需解决的核心问题和实施策略。研究提出：社区体育组织形式有效地吻合了全人群和全生命周期为立足点的全民健身要求;“社区—社会体育组织—社会体育指导员”联动运行必须以“社区嵌入社会”和“社会体育指导员嵌入社会”为理念,以社会体育组织为核心开展工作;联动运行不仅限于基层社区内部,而且还要通过以社会体育组织为核心纽带实现基层社区体育横向网络和国家、省、市级纵向网络交互联系的社区体育网络体系;联动运行的实践是政府规划体育公共服务项目并实施监管,社会体育组织实施项目,社会体育指导员全职融入社会体育组织提供人力资源保障;联动运行的关键是实现社会体育组织实体化和社会体育指导员职业化;联动的实施策略是通过在全社会实施认知性嵌入、文化性嵌入、政治性嵌入、结构性嵌入,构建与联动相适应的社会环境。为今后社区体育的组织与管理提供理论借鉴。     

大学英语写作中逻辑错误分析及对策

通过对湖南中医药大学非英语专业学生的两篇习作的研究表明：在纠正学生写作中所犯的逻辑错误方面,相比教师反馈,同级反馈效度低。因此,教师在对学生习作进行反馈时,尤其要指出学生逻辑思维方面的漏洞,以提高他们的逻辑思维能力,从而从根本上提高学生的写作应用能力。     

市场经济下的社会体育指导员职业发展研究

作为体育市场化改革的产物,社会体育指导员职业与市场经济密切相关。目前,我国社会体育指导员职业发展还未能完全摆脱计划经济思维模式的影响,现行的社会体育指导员体制还难以满足市场竞争需求,社会体育指导员职业资格证书制度缺乏市场针对性和灵活性。今后我国社会体育指导员职业建设应牢固树立市场经济意识,以市场需求为导向,完善社会体育指导员体制,建立面向市场的职业资格证书制度,落实职业准入制度,借助市场途径推广社会体育指导员职业,并可考虑对社会体育指导员职业进行更名。     

我国社会体育指导员的现状分析及发展趋势

社会体育指导员在我国社会体育的发展中的地位日趋重要,本文在分析我国社会体育指导员发展现状的基础上,就社会体育指导员的未来职业化、规范化、社会化等趋势进行了探讨。