Цены на нефть взлетели до максимума за полгода17:55
A protein reinforces the blood–brain barrier, which becomes leaky with age.
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"Get the camera, quick," said Lovell.
Agar is so critical that since WWII, scientists have tried to find alternatives in the event of a supply chain breakdown, especially as recent shortages have caused similar alarm. But while other colloid jellies have emerged, agar remains integral to laboratory protocols because no alternatives can yet compete on performance, cost, and ease of use.