It is difficult to know exactly when the shift from gelatine to agar occurred. As often happens for scientific breakthroughs, agar was likely adopted incrementally alongside the use of other growth media. In 1913, for example, the first diagnosis of Serratia marcescens as a human pathogen was made by growing it on agar as well as on potatoes.
В воскресенье, 1 марта, в Москве потеплеет до плюс 4 градусов Цельсия. О росте температур предупредил жителей столицы синоптик прогностического центра «Метео» Александр Ильин в беседе с RT.
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圖像加註文字，一張由克林頓簽名的照片顯示：他與麥克斯韋及愛潑斯坦一同入鏡，兩人位於畫面的右側在2000年克林頓卸任後，他繼續擔任其首席顧問，協助克林頓從總統身份轉型為活躍於全球舞台的資深政治人物。
2026-02-27 10:00:01