老科学,新转折 : 古青蛙化石颠覆了百年信仰 诸平 Fig. 1 No more dry skin – a dead Geiseltal frog started to decay underwater. Credit: A. Pieri (University of Pisa) Fig. 2 The replication process of the frog skin at a glance. Credit: D. Falk, see Falk et al. 2024. Fi ...
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 ...