However, Koch never credited the Hesses for their discovery of bacteriological agar, perhaps because, at the time, he failed to recognize its importance. Even after he received the insight about agar from the Hesses, Koch stuck with gelatine for years. In 1883-84, during his first medical expedition to Egypt and India to investigate cholera, he tried and failed to grow the cholera bacterium on gelatine media in the hot climate of Cairo (despite using a half-open fridge for incubation), only succeeding in the colder winter of Calcutta.
Posted on Feb 26, 2026 by
，详情可参考爱思助手下载最新版本
Последние новости
在头部行业中，半导体业下滑较为明显——在披露研发人员的企业数量增长47.58%的情况下，研发人员增速仅为7.71%，导致平均值的跌幅达到27.02%。叠加研发投入五年增长53.87%，说明该行业的资金优先投向了技术与设备，而非人力扩张。