乡村振兴视阈下农村社区治理与社区教育的互动策略研究     

陈岩 《广西广播电视大学学报》2020,(1):44-47

建立现代乡村社会治理体制是实现乡村振兴战略的重要基石。作为现代乡村社会治理的主体性要素,广大农民需要积极有效参与,以改善并促进乡村治理现代化的发展,这其中,社区教育的功能不容忽视。文章从乡村振兴战略背景下农村社区治理与社区教育互动的现实意义出发,分析两者互动困境,着眼于阐释互动机理,重点刻画农村社区治理与社区教育的互动策略。  相似文献   

运动员腘绳肌损伤后重返赛场评估标准研究          下载免费PDF全文

贺忱  高奉  钱驿  果森  周敬滨 《体育科研》2020,(3):27-32

腘绳肌损伤是运动员最常见的损伤之一，损伤后极易复发并影响运动表现。运动员团队最关心的问题是能否尽早恢复训练和重返赛场，尽可能减少停训反应，但是盲目地早期运动，不仅加重症状，再次损伤的风险也会升高。本文归纳总结了近年来最新研究成果，建议做好临床、运动功能、心理三方面的评估，达到以下标准方可重返赛场：损伤部位无痛，患肢柔韧性和关节活动范围恢复伤前水平，无疼痛恐惧感，力量达到伤前90%水平；加减速、冲刺、变向、耐力、灵敏度、有氧和无氧等运动专项能力达到伤前90%水平；心理评估分值达到75分以上，恢复重返赛场的信心。  相似文献   

基于微课的翻转课堂引入体育教学的作用分析     

袁丽  陈玉容  黄莹仪 《体育科技文献通报》2020,(2):29-30,35

随着信息技术快速发展,微课作为新的教学形式在教育行业中得到普遍使用,这也为推动高校体育教学改革提供新的思路与方法。文中以高校体育教学现状为切入点,分析基于微课的翻转课堂教学模式在高校体育课堂上的应用,大幅度提高体育课堂教学质量,发挥体育课程提高学生身体素质的作用,奠定学生走上工作岗位的身体基础。  相似文献   

The impact of student misconceptions on student persistence in a MOOC     

Chen Chen  Gerhard Sonnert  Philip M. Sadler  Dimitar Sasselov  Colin Fredericks 《科学教学研究杂志》2020,57(6):879-910

Massive Online Open Courses (MOOCs) provide opportunities to learn a vast range of subjects. Because MOOCs are open to anyone with computer access and rarely have prerequisite requirements, the range of student backgrounds can be far more varied than in conventional classroom-based courses. Prior studies have shown that misconceptions have a huge impact on students' learning performance; however, no study has empirically examined the relationship between misconceptions and learning persistence. This study of 12,913 MOOC-takers examines how students' misconceptions about the upcoming course material affect course completion. Using a survival analysis approach, we found that, controlling for the score in a pre-course test, students holding more misconceptions had a higher dropout rate at the start of the course, an effect that diminished over time. Other student variables were found to have a positive impact on survival that persisted throughout the entire course: U.S. location, higher age, an intention to complete, better English skills, prior familiarity with the subject, motivation to earn a certificate, and score and time spent on the previous problem set (homework). By contrast, student gender, education level, number of previous MOOCs completed, and motivation to participate in online discussion forums did not affect survival.  相似文献   

互联网背景下微课与大学武术课堂教学的融合研究     

闫晓鹏  陈维富  王光军  周龙峰  刘朝霞  张宗程  李林 《中华武术(研究)》2020,(1):92-96

采用文献资料法、逻辑分析法等研究方法,以信息技术为手段,以微课与高校大学武术课堂教学为研究对象,在界定微课的定义、典型特征的基础上,探讨开发武术微课必要性,明确开发制作高质量微课的五大要点(确定武术微课的选题,高精尖的设备和制作技术,教师的专业水平,素材的收集整合,微课设计微而全),并对实现微课与大学武术课堂相融合进行了理论分析并得出结论。本研究旨在为武术课程资源的新开发以及武术教学质量的提高提供可操作性的新思路。  相似文献   

Parental choice of childcare in England: Choosing in phases and the split market     

Huan Chen  Alice Bradbury 《British Educational Research Journal》2020,46(2):281-300

This article explores how parents choose childcare settings for their pre-school children within a context of complex policy on eligibility for free provision and a developing market. Using data from interviews with 17 mainly middle-class parents in England, we explore in detail how parents go about choosing a childcare setting and the different phases of this process. This adds further nuance to the existing literature on choosing practices and the dysfunction and inequalities of a neoliberal childcare market, and also updates the discussion to include recent policy developments such as the provision of ‘30 hours free childcare’ for 3 and 4-year-olds. We conclude that parental choosing involves a series of decisions in two or three phases, which start from practical considerations, followed by quality comparison and then back to practical constraints if a decision has not been made. The options open to parents are split between not only those able to accommodate shorter ‘free’ provision and those that require longer periods of childcare to work, but also between those with children under three and above. Contrary to previous findings in this area, this split may work to the disadvantage of some middle-class families, whose children attend lower-quality settings as a result.  相似文献   

指向关键能力培养的生物学作业设计与实践     

陈忠 《生物学教学》2021,(5):21-23

关键能力是高考评价体系"四层"的考查重点,作业是能力培养的重要载体。本文对生物学作业进行模型化、流程化和进阶化的设计,目的是建构思维模型、领悟探究过程和训练逻辑思维,促进学生思维的发展,以落实关键能力的培养。  相似文献   

Wearable skin-like optoelectronic systems with suppression of motion artifacts for cuff-less continuous blood pressure monitor     

Haicheng Li  Yinji Ma  Ziwei Liang  Zhouheng Wang  Yu Cao  Yuan Xu  Hua Zhou  Bingwei Lu  Ying Chen  Zhiyuan Han  Shisheng Cai  Xue Feng 《国家科学评论(英文版)》2020,7(5):849

According to the statistics of the World Health Organization, an estimated 17.9 million people die from cardiovascular diseases each year, representing 31% of all global deaths. Continuous non-invasive arterial pressure (CNAP) is essential for the management of cardiovascular diseases. However, it is difficult to achieve long-term CNAP monitoring with the daily use of current devices due to irritation of the skin as well as the lack of motion artifacts suppression. Here, we report a high-performance skin-like optoelectronic system integrated with ultra-thin flexible circuits to monitor CNAP. We introduce a theoretical model via the virtual work principle for predicting the precise blood pressure and suppressing motion artifacts, and propose optical difference in the frequency domain for stable optical measurements in terms of skin-like devices. We compare the results with the blood pressure acquired by invasive (intra-arterial) blood pressure monitoring for >1500 min in total on 44 subjects in an intensive care unit. The maximum absolute errors of diastolic and systolic blood pressure were ±7/±10 mm Hg, respectively, in immobilized, and ±10/±14 mm Hg, respectively, in walking scenarios. These strategies provide advanced blood pressure monitoring techniques, which would directly address an unmet clinical need or daily use for a highly vulnerable population.  相似文献   

Exploring askers’ switching from free to paid social Q&A services: A perspective on the push-pull-mooring framework     

Zhouying Liu  Yuxiang Zhao  Si Chen  Shijie Song  Preben Hansen  Qinghua Zhu 《Information processing & management》2021,58(1):102396

The purpose of this study is to explore the factors that prompt askers to switch from free to paid social question-and-answer (SQA) services. Prior studies have investigated users’ motivations and participation in free and paid SQA services; however, little attention has been paid to askers’ switching behavior. We empirically analyzed the content of qualitative interviews from 64 askers on a well-known SQA platform in China. Based on the push-pull-mooring framework, we identified and classified factors that influenced askers’ to switch from free to paid Q&A services, using the critical incident technique, after which we calculated the entropy weights of the 16 subcategories before and after the switch, using the entropy weight method. The findings suggest that askers’ switching behavior was influenced by push factors (i.e., dissatisfaction with the free SQA service), pull factors (i.e., satisfaction with the paid SQA service), and mooring factors (i.e., social factors, personal factors, situational factors). Moreover, the findings show that the effects of these factors vary significantly before and after a switch. Dissatisfaction with the quality of information from the free SQA service would influence users before a switch, whereas satisfaction with the quality of information from the paid SQA service would influence them after a switch. In terms of mooring factors, the effects of social and personal factors on askers’ switching behavior, especially subjective norms and cognitive lock-in, turn out to be less significant after a switch, whereas the effect of trust is more significant. Besides, the effects of situational factors are more or less the same before and after a switch. To the best of our knowledge, this paper is one of the first attempts to explore factors that affect askers’ switching behavior and to shed light on the managerial strategies of paid SQA services.  相似文献   

让评价支持和促进学习——美国STEM项目学习评价的特点与启示     

陈素平 《上海教育科研》2020,(4):18-22

评价是STEM项目学习实施的难点。观察美国印第安纳州(文中简称印州)和新泽西州(文中简称新州)中小学STEM项目学习评价可以发现,美国STEM项目学习评价注重发挥支持和促进学习的功能。本文归纳了STEM项目学习评价的特点,并从评价指向、工具和策略三个视角梳理其带给我们的启示。  相似文献