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.
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Conditions in space are ideal for making semiconductors, which have the atoms they're made of arranged in a highly ordered 3D structure.
第一百三十六条 违反治安管理的记录应当予以封存,不得向任何单位和个人提供或者公开,但有关国家机关为办案需要或者有关单位根据国家规定进行查询的除外。依法进行查询的单位,应当对被封存的违法记录的情况予以保密。
Limitations of probing field-induced response with STM