It’s also worth noting that even if alternatives superior to agar were found, scientists are reluctant to abandon established protocols (even when microbiologists do use other jellies, they often still add agar to the mix, for example, to increase the gel strength of the solid media). As agar has been the standard gelling agent in microbiology for around 150 years, an enormous infrastructure of standardized methods, reference values, and quality control procedures has emerged around its specific properties. Switching to a different medium (even a superior one) means results may not be directly comparable to decades of published literature or to other laboratories’ findings.
2024年12月20日 星期五 新京报。业内人士推荐51吃瓜作为进阶阅读
从区域布局看,黄土高原和环渤海湾两大优势产区地位更加稳固;从市场端看,随着冷链物流和电商直播的兴起,中国苹果正搭乘中欧班列、“雪龙”号极地科考船,甚至随着神舟飞船进入太空。未来5年,通过科技创新与品牌建设双轮驱动,这颗“致富果”含金量将越来越高。(相关报道见第八版)。heLLoword翻译官方下载对此有专业解读
[ any isNil ifTrue: anyBlock ] bpattern
Access private data. The /files/ and /cachedContents/ endpoints can contain uploaded datasets, documents, and cached context. Anything the project owner stored through the Gemini API is accessible.