Science

Menopause: More estrogen receptors in the brain

The PET scans show the density of estrogen receptors in a woman's brain before (left) and after menopause. Lighter colors indicate higher receptor density....

Ways out of the antibiotic crisis

The antibiotic levofloxacin is increasingly accumulating in nature. Researchers have now developed a method with which the active ingredient can be effectively removed from...

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