Introduction: Overweight and obesity represent a public health problem in Africa due to the epidemiological transition. The objectives of this work were to determine the prevalence of overweight and obesity and to ide...Introduction: Overweight and obesity represent a public health problem in Africa due to the epidemiological transition. The objectives of this work were to determine the prevalence of overweight and obesity and to identify associated factors among public secondary school teachers in Parakou, Benin in 2021. Methods: We conducted a descriptive and analytical cross-sectional study. Teachers working in public secondary schools in Parakou during the 2020-2021 academic year, present at work and who gave their written informed consent, were included. A two-stage random sampling was carried out. Data were collected during an individual interview using a questionnaire followed by the measurement of anthropometric parameters and blood pressure. Overweight and obesity were defined by a body mass index ≥ 25 kg/m<sup>2</sup>. Multivariable logistic regression was performed to identify associated factors. Results: A sample of 325 teachers, including 88.6% of men, was recruited with an average age of 36.2 ± 6.8 years. The prevalence of overweight and obesity was 43.7% (95% CI [38.1%-44.8%]). It increased significantly with income (p Conclusion: The results show a high prevalence of overweight and obesity. Actions are necessary to prevent overweight and obesity among secondary school teachers in Parakou, in Benin.展开更多
With the arrival of the big data era, the modern higher education model has undergone radical changes, and higher requirements have been put forward for the data literacy of college teachers. The paper first analyzes ...With the arrival of the big data era, the modern higher education model has undergone radical changes, and higher requirements have been put forward for the data literacy of college teachers. The paper first analyzes the connotation of teacher data literacy, and then combs through the status quo and dilemmas of teachers’ data literacy ability in applied universities. The paper proposes to enhance the data literacy ability of teachers from the perspective of organizational learning. Through building a digital culture, building a data-driven teaching environment, and constructing an interdisciplinary learning community to further promote the application of the theory and practice of datafication inside and outside the organization, and ultimately improve the quality of teaching.展开更多
以美国SSCI数据库中教师教育研究的权威期刊《Journal of Teacher Education》2000-2015年刊载文献为数据源,运用文献计量可视化软件Cite Space中的文献共被引和关键词共现技术,对美国21世纪以来教师教育领域发展的热点领域与前沿主题...以美国SSCI数据库中教师教育研究的权威期刊《Journal of Teacher Education》2000-2015年刊载文献为数据源,运用文献计量可视化软件Cite Space中的文献共被引和关键词共现技术,对美国21世纪以来教师教育领域发展的热点领域与前沿主题进行分析表明:多元文化教师培养、教师知识基础、教师教育改革、连续性教师职业指导是美国教师教育研究关注的热点领域。在美国教师教育研究的各大前沿主题中,教师教育改革和教育政策一直保持着稳健的演进趋势。以视频分析和量化研究为代表的新型研究方法正成为美国教师教育研究的最新前沿主题。展开更多
美国是国际上较早关注教师领导力的国家之一。在我国教师信息化领导力发展的初级阶段,分析美国最新教师领导力理念对我国教师信息化领导力的研究与实践具有重要的借鉴意义。"Teacherpreneurs"是21世纪创新型教师领导者。这一...美国是国际上较早关注教师领导力的国家之一。在我国教师信息化领导力发展的初级阶段,分析美国最新教师领导力理念对我国教师信息化领导力的研究与实践具有重要的借鉴意义。"Teacherpreneurs"是21世纪创新型教师领导者。这一概念是美国教学质量中心(Center for Teaching Quality,CTQ)为应对21世纪教与学的变革而提出的,代表了信息时代美国教师领导力理念的变革。本研究在对"Teacherpreneurs"的提出背景、基本内涵和基本特征进行分析的基础上,对我国教师信息化领导力的研究与实践进行了尝试性思考与总结,以期对丰富教师信息化领导力理论,开发教师信息化领导力,拓宽教师专业发展途径具有一定的指导意义。展开更多
以2010年以来《教师教育研究》与《Teaching And Teacher education》刊载的教师专业发展的相关文献为对象,基于文献研究的方法,对在职教师专业发展的研究主题、研究方法、研究对象做一分析。研究发现,在我国的同类研究中:(1)研究主题...以2010年以来《教师教育研究》与《Teaching And Teacher education》刊载的教师专业发展的相关文献为对象,基于文献研究的方法,对在职教师专业发展的研究主题、研究方法、研究对象做一分析。研究发现,在我国的同类研究中:(1)研究主题选择应调整范围与层次;(2)研究方法切忌重思辨轻数据;(3)研究对象确定应兼顾各个层面。展开更多
文摘人体行为识别(Human Activity Recognition,HAR)是当前众多研究工作的基石,对于推动人机交互和智能数字化转型具有巨大潜力。由于目标域样本较难采集,现有方法在跨域识别方面表现不佳。为解决这一问题,提出一种新的WiFi使能跨域HAR方法,从WiFi信号中获取信道状态信息(Channel State Information,CSI)并转化为图像,在基于Wasserstein距离和梯度的生成对抗网络(Wasserstein Generative Adversarial Network with Gradient Penalty,WGAN-GP)中引入双判别器,通过与源域样本和单目标域样本特征联合对抗,生成同时带有双域特征的虚拟样本。该方法还结合基于Mean Teacher的半监督学习设计识别分类(Recognition and Classification,RC)模块,通过对有标记样本与无标记样本分别构造损失函数,进行整体一致性损失的评估,实现对目标域样本的识别。实验结果证明了所提方法能够在减轻目标域样本采集压力的同时,实现较高的检测精度,在手势与动作的数据集上测试准确率分别达到92.71%和86.65%。
文摘Introduction: Overweight and obesity represent a public health problem in Africa due to the epidemiological transition. The objectives of this work were to determine the prevalence of overweight and obesity and to identify associated factors among public secondary school teachers in Parakou, Benin in 2021. Methods: We conducted a descriptive and analytical cross-sectional study. Teachers working in public secondary schools in Parakou during the 2020-2021 academic year, present at work and who gave their written informed consent, were included. A two-stage random sampling was carried out. Data were collected during an individual interview using a questionnaire followed by the measurement of anthropometric parameters and blood pressure. Overweight and obesity were defined by a body mass index ≥ 25 kg/m<sup>2</sup>. Multivariable logistic regression was performed to identify associated factors. Results: A sample of 325 teachers, including 88.6% of men, was recruited with an average age of 36.2 ± 6.8 years. The prevalence of overweight and obesity was 43.7% (95% CI [38.1%-44.8%]). It increased significantly with income (p Conclusion: The results show a high prevalence of overweight and obesity. Actions are necessary to prevent overweight and obesity among secondary school teachers in Parakou, in Benin.
文摘With the arrival of the big data era, the modern higher education model has undergone radical changes, and higher requirements have been put forward for the data literacy of college teachers. The paper first analyzes the connotation of teacher data literacy, and then combs through the status quo and dilemmas of teachers’ data literacy ability in applied universities. The paper proposes to enhance the data literacy ability of teachers from the perspective of organizational learning. Through building a digital culture, building a data-driven teaching environment, and constructing an interdisciplinary learning community to further promote the application of the theory and practice of datafication inside and outside the organization, and ultimately improve the quality of teaching.
文摘以美国SSCI数据库中教师教育研究的权威期刊《Journal of Teacher Education》2000-2015年刊载文献为数据源,运用文献计量可视化软件Cite Space中的文献共被引和关键词共现技术,对美国21世纪以来教师教育领域发展的热点领域与前沿主题进行分析表明:多元文化教师培养、教师知识基础、教师教育改革、连续性教师职业指导是美国教师教育研究关注的热点领域。在美国教师教育研究的各大前沿主题中,教师教育改革和教育政策一直保持着稳健的演进趋势。以视频分析和量化研究为代表的新型研究方法正成为美国教师教育研究的最新前沿主题。
文摘美国是国际上较早关注教师领导力的国家之一。在我国教师信息化领导力发展的初级阶段,分析美国最新教师领导力理念对我国教师信息化领导力的研究与实践具有重要的借鉴意义。"Teacherpreneurs"是21世纪创新型教师领导者。这一概念是美国教学质量中心(Center for Teaching Quality,CTQ)为应对21世纪教与学的变革而提出的,代表了信息时代美国教师领导力理念的变革。本研究在对"Teacherpreneurs"的提出背景、基本内涵和基本特征进行分析的基础上,对我国教师信息化领导力的研究与实践进行了尝试性思考与总结,以期对丰富教师信息化领导力理论,开发教师信息化领导力,拓宽教师专业发展途径具有一定的指导意义。
文摘以2010年以来《教师教育研究》与《Teaching And Teacher education》刊载的教师专业发展的相关文献为对象,基于文献研究的方法,对在职教师专业发展的研究主题、研究方法、研究对象做一分析。研究发现,在我国的同类研究中:(1)研究主题选择应调整范围与层次;(2)研究方法切忌重思辨轻数据;(3)研究对象确定应兼顾各个层面。