N95口罩是医疗工作者预防呼吸道疾病传播的核心设备。N95对感染传播的防护效果取决于口罩与佩戴者的贴合度,这与佩戴者的面部尺寸有关。 由中国学者团队近日在环境卫生领域SCI期刊 Journal of Occupational and Environmental Hygiene 发布的文章 Study on the relationship between the fitness of three types of N95 re ...
科学家解决了几十年的显微镜问题 诸平 Fig. 1 The experimental setup by Daan Boltje and Ernest van der Wee. The lens of the light microscope (bottom right) is surrounded by air and looks through a glass plate at the small sphere. On top of the glass plate, the sample is placed in a drop ...
79. 脊椎动物在多大程度上依赖先天免疫系统来对抗感染? How much do vertebrates depend on the innate immune system to fight infection? 题记: 先天免疫系统早于脊椎动物的适应性免疫反应。它的相对重要性尚不清楚,但免疫学家正在努力寻找 ...
永久化学品的危机 : 全球水资源超过安全的 PFAS 限制 诸平 PFAS chemicals are prevalent in many everyday products and the environment, raising health and environmental concerns due to their persistent nature and association with several health risks. Recent research reveals global source ...