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.
当我觉得这些内容似乎可以整合起来变成一篇文章时，我给这些存放在 Drafts 里的内容打了 Tag，然后用 Drafts 自带的 Merge 功能，将它们合并成了一个包含所有信息的混沌大文档。没有分类、没有排序，甚至错误的内容我也都一起合并了，因为内容实在太多，根本看不过来。。关于这个话题，新收录的资料提供了深入分析
于洁阳认为，高价彩礼能够长期存在，与婚姻逐渐被工具化有关。一些男性把婚姻视为生育、满足性与生活需求的手段，而部分女性则将其视作获取经济资源、实现阶层跃迁的路径。当婚姻被放置在这种功利框架中时，彩礼自然成为可以不断被抬高的筹码。。新收录的资料对此有专业解读
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Зарина Дзагоева