2019年起,台灣電子產業在全球最大電子消費品聯盟「責任商業聯盟」(Responsible Business Alliance, RBA)的壓力下,率先落實「移工零收費原則」。台積電、宏碁、台達電等電子巨頭要求合作的仲介不得向移工收費,費用由雇主承擔。
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This was not the first time that microbiologists experienced problems with agar. A phenomenon called “The Great Plate Count Anomaly” baffled researchers in the early 20th century when they observed that the number of cells seen under a microscope didn’t match the actual number of colonies growing on an agar plate. Investigating this discrepancy, researchers found agar itself to be the culprit: when nutrient broths are heated with agar during boiling, harmful byproducts (hydroperoxide) can form due to the reaction of agar with phosphate minerals contained in the media. Researchers can avoid this by autoclaving agar separately from the nutrient broth, or by reducing the amount of agar used.