Agar was first introduced into the laboratory in 1881. Since then, microbiologists have depended on agar to create strong jellies. When microorganisms are streaked or plated onto this jellied surface and incubated, individual cells multiply into distinct colonies that scientists can easily observe, select, and propagate for further experiments. Many of the most important findings in biological research of the last 150 years or so — including the discovery of the CRISPR/Cas9 gene-editing tool — have been enabled by agar.4 Agarose, a derivative of agar, is also essential in molecular biology techniques like gel electrophoresis, where its porous gel matrix separates DNA fragments by size, enabling researchers to analyze and isolate specific genetic sequences.
对于党员干部来说，个人的时间和精力总是有限的。如何更好造福于民，考验着为政的立场和智慧。
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在那個空間裡，她和女性朋友可以用一種更自主的方式接觸男男愛情作品。透過「讓人感到愉悅的寫作」，她們可以創造自己想看到但「現實中難以擁有」的男性角色與關係。
杜耀豪分析，“我无法确定是不是钱的原因。不过有可能，因为那时候如果想被‘赎回’，释放的程序很模糊不清，官员或者狱警都需要行贿”。越共刚刚掌控的越南南部，“非常不稳定，每个人都在想接下来该怎么做才能生存下来、保护家人”。或许这种“牺牲一个，换另外两个”的抉择，是无数家庭在极端动荡中被迫面对的普遍现实。