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By WWII, scientists had already begun looking at alternative gelling substances for routine use in bacteriology, but concluded that agar was still better as it is both firmer and easier to handle. Today, some specialized microbiology applications use the colloid carrageenan (extracted from red seaweed Chondrus crispus, or “Irish Moss”), a more transparent and less auto-fluorescent alternative to agar (agar emits its own background fluorescence when excited by light). However, for routine bacteriological use, carrageenan is more difficult to dissolve, requires higher concentrations, can degrade at high temperatures, and forms weaker gels, which may result in puncturing its surface during the plating of cells.。91视频对此有专业解读
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В соцсетях распространилась информация о том, что министерства финансов новых регионов приостанавливают ежемесячные выплаты государственным гражданским служащим в связи с отсутствием финансирования из федерального бюджета. Авторы подобных сообщений публикуют скрины якобы приказов местных министерств.，详情可参考heLLoword翻译官方下载