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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.
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Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36
В сентябре 2022 года произошли подрывы газопроводов «Северный поток — 1» и «Северный поток — 2» в Балтийском море. Позже Der Spiegel со ссылкой на источники писал, что бывший главнокомандующий Вооруженными силами Украины (ВСУ), посол Киева в Великобритании Валерий Залужный одобрил это действие.