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.
If there is something I never expected to read, it was the Pope’s opinion on artificial intelligence and its use within the Church. So when Pope Leo XIV advised priests of his diocese not to outsource homilies to artificial intelligence, the instruction read almost like a parish bulletin caught between two worlds. Except it wasn’t […]
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连接器层面的新增覆盖了大多数主流企业应用：Google Workspace（含 Calendar、Drive、Gmail）、Docusign、Slack、LegalZoom、FactSet、Harvey、Apollo、Clay 等等。
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Фото: Nathan Howard / Reuters
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