上好农机化实验课提高农科专业大学生综合素质

实验课是培养学生实践能力的重要环节,本文就如何上好农业生产机械化实验课,提高农科专业大学生综合素质,提出了应做好的几方面的工作。     

浅谈高校教学管理队伍素质的建设

通过分析高校教学管理在大学管理中的中心地位,指出高校教学管理制度改革的关键是加强教学管理队伍的建设。高校必须采取对策,提高教学管理人员的综合素养及高效率的管理能力。只有具有这种高素质的教学管理队伍,才能适应当今具有信息化和人文化理念、手段及方法的高校教学管理模式,才能保证高校教学工作健康、有序的发展。     

概率统计教学中蕴含的能力培养

本文讨论“概率论与数理统计“教学中,在传授给学生理论文化知识的同时,重点加强学生能力培养.结合多年的教学实践,对如何培养学生的创新思维能力、逻辑思维能力、想象能力、表达能力、计算能力及实际应用能力等问题进行阐述.     

信息技术与化学教学的整合研究

随着课程教材改革的全面推行,教学手段的现代化已成为当前提高课堂教学效率的一个重要途径。信息技术与学科教学的整合是现代化技术教育的主要手段,即把教学资源和教学要素有机地集合起来．协调教学系统中教师、学生、教育内容和教学媒体等教学诸元素的相互之间的作用关系,使整个教学系统保持协调一致,产生聚集效应。笔者就信息技术与化学教学的整合谈一些见解,与同仁共商讨。     

作为媒介的博物馆及其在中国的专业化发展方向

博物馆是为数不多的、能与受众直接沟通的媒介,虽然小众,但传播内容真实形象、纵观古今,传播方式倡导多感官认知和身体交互,由此在学习、社交和崇拜三方面呈现出不可替代的媒介优势。但目前我国博物馆的这些潜在优势尚未完全释放,究其根源在于专业化程度不高。为此,需要更新认识论以弥补理论和实践的断裂;在整体论视阈下通过关联需求和重组业务提升专业化水平;基于观众立场廓清博物馆学科并提出中国方案。促使博物馆经由专业化发挥其独特的媒介潜能,从根本上帮助破解国人全面发展的难题。     

Replication,pathogenicity, and transmission of SARS-CoV-2 in minks

Minks are raised in many countries and have transmitted severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) to humans. However, the biologic properties of SARS-CoV-2 in minks are largely unknown. Here, we investigated and found that SARS-CoV-2 replicates efficiently in both the upper and lower respiratory tracts, and transmits efficiently in minks via respiratory droplets; pulmonary lesions caused by SARS-CoV-2 in minks are similar to those seen in humans with COVID-19. We further found that a spike protein-based subunit vaccine largely prevented SARS-CoV-2 replication and lung damage caused by SARS-CoV-2 infection in minks. Our study indicates that minks are a useful animal model for evaluating the efficacy of drugs or vaccines against COVID-19 and that vaccination is a potential strategy to prevent minks from transmitting SARS-CoV-2.     

历史课堂中如何转变学生的学习方式

传统的教学方法是"口耳授受",即"老师讲,学生听".在这种教学方法指导下,许多学生只习惯发挥大脑储存的功能,而不习惯发挥大脑的思维功能,整天读呀、记呀、背呀,不但学习负担很重,而且收效并不理想.     

Blessings of Chinese Lunar Year of Ox

Capital Museum launches Spring Festival celebrations every year. In the advent of Chinese lunar year of ox, the museum held two exhibitions entitled ＂An Auspicious Ox Year＂ and ＂Talk about Ox in the Ox Year＂, sending new year greetings to local viewers of Beijing.     

Rosy Clouds in the Sky

From January 16 to February 10, the National Art Museum of China held a painting exhibition on its collection of ethnic minority motifs. On display included 180 pieces of painting works from the museum＇s collection, most of which are masterpieces by accomplished painters in modern China. These painting exhibits fall into such diverse categories as Chinese tTaditional painting, oil painting, print painting, watercolor painting and serial illustrations of story books. Subjects from various ethnic minorily groups of China have been depicted, which bring viewers with an opportunity to appreciate cultural diversity of China.     

Colorful China： Exhibition on Ethnic Traditions of China

The exhibition ＂Colorful China＂ was recently held in the Capital Museum in Beijing, This exhibition displayed 100 pieces or sets of masterpieces of ethnic tradition in foursections, including ＂Unity and Self-Reliance＂, ＂Ethnic Diversity and Harmony＂, ＂Superb Craftsmanship＂ and ＂Mental Cultivation＂. These historic exhibits collected by 12 different museums of China offered viewers a good opportunity to take an in-depth look at ethnic cultures and traditions preserved and promoted in the process of modernization.