Union and government to restart talks on ending doctor dispute
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It is difficult to know exactly when the shift from gelatine to agar occurred. As often happens for scientific breakthroughs, agar was likely adopted incrementally alongside the use of other growth media. In 1913, for example, the first diagnosis of Serratia marcescens as a human pathogen was made by growing it on agar as well as on potatoes.
两名业内人士透露，近几个月美国芯片制造商在向中国申请新的钪出口许可证时频频遇到延迟，一些企业已向华盛顿寻求帮助。