第19届世界杯欧亚足球队球员年龄、身高、体重比较研究

采用了T检验法．对第19届足球世界杯赛中参赛的欧亚球队球员的年龄、身高、体重等指标进行了比较分析。结果表明：（1）欧亚球员在年龄方面没有显著性差异（P〉0．05）;在身高、体重方面均有显著性差异（P〈0．05）;（2）欧洲球队不同位置球员和亚洲球队不同位置球员在年龄、身高、体重方面均没有显著性差异（p〉0．05）;（3）欧亚球队同一位置的球员中．门将的身高方面具有非常显著性差异（P〈0．01）;后卫的身高、体重,中场球员的年龄,前锋球员的身高、体重方面均具有显著性差异（P〈0．05）;其他均没有显著性差异（P〉0．05）。所得结果为我国足球运动员选材提供了一定的参考依据。     

试论17世纪后期至19世纪中期云南矿冶业的发展特点

17世纪后期至19世纪中期,云南矿冶业获得了长足的发展.其主要特点是:它是较为全面、整体的发展,在矿冶业里已有局限的资本主义萌芽,且催生了兴盛的矿冶文化,但也具有封建社会鲜明的时代特征,与此同时它产生的影响也十分巨大     

后疫情时代线上教学质量的提升策略研究

新冠肺炎疫情给国家和人民造成了严重的损失。为了最大可能地降低疫情带来的影响,教育部提出了“停课不停教、停课不停学”的总体要求。全国各地高校开始探索适合自身特点的线上教学模式。通过分析各类线上教学模式中存在的问题,给出提升线上教学质量的策略,为特殊时期的线上教学模式探索提供可资借鉴的经验。     

疫情下高校线上教学状况调查:以辽宁省为例

以疫情期间接受线上教学的辽宁省高校大学生1262个样本为研究对象,通过网络问卷来调查疫情下高校学生大规模线上学习状况,分析出影响学生线上学习效果的因素是网络与教学平台、学生自主学习态度与能力、教师在线技术与能力等。基于此提出线上教学质量提高的建议。     

以工程体验为核心的在线教学平台构建与实践——以疫情期间“计算机程序设计基础”课程教学为例

新冠肺炎疫情防控背景下,针对应用型本科院校“计算机程序设计基础”课程强实践性的特点,在充分分析大学生居家线上学习存在问题的基础上,构建了基于“云班课+微信”的“轻直播+”在线教学平台,并以本科工程教育中符合“三个是否”界定标准下的工程体验为核心进行了教学过程设计,采用问卷调查方式开展在线教学效果分析与评价。评价结果表明,学生对课程内容安排、授课方式、互动反馈以及听课感受等方面的满意度均较高,课程的在线教学取得了良好效果。     

The impact of asynchronous online anatomy teaching and smaller learning groups in the anatomy laboratory on medical students’ performance during the Covid-19 pandemic

Due to the Covid-19 pandemic, National Taiwan University anatomy teachers adopted asynchronous online video teaching and reduced the size of anatomy laboratory groups in April 2020. The aim of this study was to investigate the impact of these changes on medical students’ learning. Before Covid-19, the performance of the 2019–2020 cohort was significantly better than that of the 2018–2019 cohort. However, the implementation of modified teaching strategies significantly lowered the laboratory midterm score of the 2019–2020 cohort in the second semester. Conversely, the final laboratory examination score of the 2019–2020 cohort was significantly higher than that of the 2018–2019 cohort. Through correlation analysis, lecture and laboratory examination scores were highly correlated. Additionally, the difference in lecture and laboratory z-scores between two cohorts, the Likert scale survey and free-text feedback of the 2019–2020 cohort, were conducted to show the impact of modified teaching strategies. There were several important findings in this study. First, the change in teaching strategies may temporarily negatively influence medical students to learn anatomy. Besides, analyzing the performance of laboratory assessments could be a complementary strategy to evaluate online assessments. Applying lecture examination scores to predict laboratory performance was a feasible way to identify students who may have difficulty in learning practical dissection. Finally, reducing group size together with reduced peer discussion may have a negative effect on learning cadaver dissection for students with low academic performance. These findings should be taken into consideration when anatomy teachers apply new teaching strategies in anatomy courses.     

Medical students' perceptions and performance in an online regional anatomy course during the Covid-19 pandemic

The present study evaluated the students' psychological well-being, experiences, performance, and perception of learning regional anatomy remotely. A regional anatomy remote learning curriculum was designed and learning materials were delivered virtually to 120 undergraduate medical students at Jinan University, China. All the students consented and voluntarily participated in this study by completing self-administered online questionnaires including the Zung's Self-Rating Anxiety and Depression Scales at the beginning and end of the learning session. A subset participated in focus group discussions. Most of the students (90.0%) positively evaluated the current distance learning model. More than 80% were satisfied with the content arrangement and coverage. Many students preferred virtual lectures (68.2%) and videos showing dissections (70.6%) during the distance learning sessions. However, writing laboratory reports and case-based learning were the least preferred modes of learning as they were only preferred by 23.2% and 14.1% of the students, respectively. There was no significant lockdown-related anxiety or depression reported by students using depression and anxiety scales as well as feedback from focus group discussions. The surveyed students' confidence scores in distance learning were significantly higher after 5 weeks than at the beginning of the session (3.05 ± 0.83 vs. 3.70 ± 0.71, P < 0.05). Furthermore, the present results showed no significant differences between the current group's academic performance in the unit tests as well as the final overall evaluation for different parts of the course compared to that of the previous year's cohort. The findings above were congruent with focus group discussion data that the use of the online teaching platform for regional anatomy significantly improved the students' confidence in virtual and self-directed learning and did not negatively affect their academic performance.