A widespread bacterial defence system called SNIPE is shown to localize to the cell membrane, where it identifies and cleaves the DNA of infecting phage as it is injected into the bacterial cell.
f(x1,x2)=x1⋅Swish(x2)=x1⋅(x2⋅σ(x2))
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戈登解釋，「支付招聘費用」本身未必構成強迫勞動，若工人能透過合理薪資償還，例如高收入專業人士支付招聘費用後仍能負擔生活，收入足以彌補支出，就不一定屬於強迫勞動。「但若費用高到超過工人可負擔範圍，使其陷入債務束縛、無法脫離雇主或仲介控制，則符合強迫勞動的定義。」當債務與缺乏流動性的簽證制度結合，更是形成強迫勞動的關鍵因素。
（五）主动投案，向公安机关如实陈述自己的违法行为的；