Young children working together. Cooperative learning effects on group work of children in Grade 1 of primary education     

《Learning and Instruction》2020

It was examined whether cooperative learning within the Success for All (SfA) program led to improved group work behaviour of Grade 1 pupils. 168 pupils of six SfA schools and 144 pupils of four control schools participated. Positive and negative group work behaviour was observed during a group task, taking into account socioemotional ethos, group participation, and type of dialogue. Longitudinal multilevel analysis was used for the sequence of observed 20-s time intervals. SfA groups showed more positive and less negative group work behaviour compared to control groups, whilst controlling for several group characteristics. Results suggest that negative group work behaviour increased gradually during the whole task in control groups, while in SfA groups it increased only towards the end of the task. The findings indicate that cooperative learning may lead to improved group work behaviour of young pupils (6–7 years old).  相似文献   

Why care about caring? Linking teachers’ caring and sense of meaning at work with students’ self-esteem,well-being,and school engagement     

《Teaching and Teacher Education》2020

Research on teacher-student relationships shows their impact on students. However, it typically focuses on teachers’ interactions and instruction, with less attention to motivations/feelings. Specifically, almost no quantitative research has focused on teachers’ caring for students, despite its potential importance. The present multilevel study, comprising 675 students in ages 15–17 and their 33 homeroom teachers, linked students’ feelings that their teacher cares for them with their self-esteem, well-being, and school engagement and indicated that teacher-student relationships quality mediates these links. Furthermore, students’ reports on teachers’ caring were associated with teachers’ sense of meaning at work, suggesting its role in enhancing caring.  相似文献   

我国高危险性体育项目的立法缺陷及其完善     

汪全胜  宋琳璘  张奇 《武汉体育学院学报》2020,54(6):46-53

高危险性体育项目相对一般体育项目而言，是具有危险性大、专业技术性强、安全保障要求高等特点的体育活动。我国对高危险性体育项目有一定的法律规制，但存在顶层设计缺失、法律制度之间的冲突与不一致、可操作性不足等问题。这些制度缺陷产生的根源在于对立法必要性的认识不足、立法不作为，缺乏有效的立法监督机制等，现有制度的缺陷与不足会影响我国高危险性体育项目的发展，难以满足人们体育文化活动的需要。鉴于此，我国应逐步完善高危险性体育项目的法律规制，包括完善高危险性体育项目的审定主体，明确经营高危险性体育项目的主体范围、完善高危险性体育项目的行政许可条件、强化高危险体育项目行政监管以及风险防范等。  相似文献   

高职院校顶岗实习管理机制构建探析     

李耀辉  许春龙  赵成 《苏州市职业大学学报》2021,(1)

顶岗实习是实现高职人才培养目标的重要途径。鉴于当前高职顶岗实习中学校、学生及教师各层面都存在的问题,重新设计了顶岗实习的流程体系,通过校、企、师、生、家五方联动,构建了五途径保障实习岗位、两维度驱动实习成效、四层次规范实习管理、三主体强化实习评价的“五二四三”顶岗实习模式,实现学生、企业、教师、家长、导师和学校的六方共赢。  相似文献   

Genetic Polymorphism of Angiotensin II Type 1 Receptors and Their Effect on the Clinical Outcome of Captopril Treatment in Arab Iraqi Patients with Acute Coronary Syndrome (Mid Euphrates)     

Fadhaa A. Ghafil  Bassim I. Mohammad  Hussain S. Al-Janabi  Najah R. Hadi  Hayder A. Al-Aubaidy 《Indian journal of clinical biochemistry : IJCB》2021,36(1):81

Genetic variation in the angiotensin II type 1 receptor (AT1R) has an important effect on the outcome of acute coronary syndrome (ACS) initiated treatment with captopril. This study aims to investigate the impact of genetic polymorphism of AT1R (rs5186 and rs275651) on the ACS outcome in Iraqi patients treated with captopril. A total of 250 Iraqi individuals with ACS were included in this case—control study and they were divided into two study groups; Study group 1 included 125 participants who were prescribed captopril, 25 mg twice daily and study group 2 included 125 participants who received no captopril as part of their ACS treatment (control study). The AT1R gene (rs5186) CC genotype was found to be associated with ST-elevation myocardial infarction (STEMI) (Odd’s ratio (O.R) = 1.2, P = 0.7), while AC was associated with Non-ST-elevation myocardial infarction (NSTEMI) and unstable angina (UA) (O.R = 1.2, P = 0.8). AC genotype is more prone to have Percutaneous coronary intervention (PCI) after ACS attack (O.R = 1.2, P = 0.6). CC genotype had a risk to get less improvement (O.R = 1.6, P = 0.5), so might require higher doses of captopril during acute coronary insult. The AT1R gene (rs275651) AA genotype was associated with UA (O.R = 1.3, P = 0.9). AA and AT genotypes were more prone to have PCI after ACS attack (O.R = 3.9 P = 0.2, O.R = 3.5, P = 0.3 respectively) and thus requiring higher doses of captopril. We conclude that the AT1R rs5186, rs275651 genetic polymorphisms might partially affect the clinical outcome of ACS patients treated with captopril and might have captopril resistance which requires higher doses.  相似文献   

知识找回场景下推荐系统模拟实现及评价研究     

程秀峰  张孜铭  孟亚琪  范晓莹  杨金庆 《图书情报工作》2019,63(16):72-83

[目的/意义]信息过载一直是知识工作者在搜集、处理和创造知识的过程中所面临的主要困境。这种困境导致的结果之一是很难回忆起曾经使用过的文档的内容细节及具体位置，而推荐系统则能减少这样的困难。通过研究对比不同推荐系统在这一任务下的优缺点，可以帮助知识工作者更好地完成回忆任务。[方法/过程]基于相关理论，在同一场景（知识找回）模拟实现并测试了4种不同类型的推荐过程，包括基于内容的推荐CBR、基于协同过滤的推荐CFR、基于推理网络的推荐INR与融入了情境感知的推荐CAS，根据所确定的若干指标（精确性、情境相关性、预测性、多样性）对推荐效果进行比较。[结果/结论]结果显示，以上推荐系统在帮助用户回忆并找回文档过程中都有各自的优势，而基于情境感知的推荐系统在情境相关性与预测用户行为方面具有较好的效果。  相似文献   

Tackling inequality? Teacher effects and the socioeconomic gap in educational achievement. Evidence from Chile     

Rodrigo Torres 《School Effectiveness & School Improvement》2018,29(3):383-417

Although teacher quality is usually signalled to be the most relevant school-level factor impacting students’ learning, little is known about the relevance of teacher effects explaining educational inequality. By using a value-added model for a cohort of 10th graders, in this work we examine the socioeconomic gap in teacher effects across Chilean secondary schools, and its importance in explaining socioeconomic inequality in students’ achievement in math and language. We found an important proportion of highly effective teachers in low-socioeconomic-status (SES) schools, but also much bigger variation in teacher effects across those schools. Variability in teacher effects decreases when moving towards higher SES schools, where there is also a smaller proportion of low-performing teachers. All in all, teacher effects have a levelling impact for students in low-SES schools when compared to those in middle SES schools, but no significant impact when compared to students in high-SES schools.  相似文献   

创新网络与企业技术创新动态能力协同演进研究——基于系统动力学的分析_*     

王昌林 《科技管理研究》2018,(21)

本研究利用系统动力学方法,从知识流动的角度描述、量化、模拟企业创新网络与企业技术创新动态能力协同演进的过程。模型分析结果表明当前企业创新绩效取决于技术创新动态能力与创新网络协同演进路径：技术创新动态能力→创新网络构建与演化→外部知识内化→创新绩效→技术创新动态能力。在协同演进的过程中随着企业技术创新的发展,在创新绩效驱动三要素中,动态能力以及创新网络知识内化对创新绩效提升具有边际递增的效应,同时创新战略、产业政策平台和管理平台对企业技术创新都存在显著影响,但这种影响作用存在较大差异。  相似文献   

基于系统动力学的移动电子商务产业演化研究     

李君昌  樊重俊  杨云鹏  王来 《科技管理研究》2018,(3)

近年来我国移动电子商务产业规模迅速扩大。从系统的角度出发,移动电子商务产业可看作由经济、政策、移动技术和产业链4个相互关联的子系统构成,根据各子系统的内在因果关系,运用Vensim软件构建移动电子商务产业的系统动力学模型;在检验模型有效性的基础上,对我国移动电子商务产业的演化趋势进行仿真,并在政策和技术的不同投入力度场景下分析系统行为的变化。仿真结果表明,在适度的政策引导下,协同移动技术和产业链的发展能有效促进我国移动电子商务产业健康、可持续发展。  相似文献   

第四轮学科评估指标体系的变化、问题及启示          下载免费PDF全文

王晨  刘虹 《上海教育评估研究》2018,7(6):6-10

学科评估对促进学科发展和学科建设具有重要的作用。由教育部学位与研究生教育发展中心组织的全国第四轮学科评估于2016 年4 月启动，2017 年2 月公布评估结果。对第四轮学科评估的指标体系进行分析后发现，对比上一轮学科评估指标体系，第四轮学科评估指标体系在关注人才培养质量、凸显学科特色等诸多方面有显著进步，但同时也存在一些问题。在未来的学科评估中，应当及时公布下一轮评估指标体系并做出详细说明，制定合理的中文期刊指标，合理分配“归属度”权重，对开设数量较少的学科给予特殊支持，评估结果要慎重与政府拨款挂钩。  相似文献