The arrival of Europeans to the Americas, beginning in the 15th century, all but wiped out the dogs that had lived alongside native people on the continent for thousands of years, according to new research published today in Science.
Scientists at the UC Berkeley and Lawrence Berkeley National Laboratory have invented a new way to synthesize DNA that promises to be easier and faster, does not require the use of toxic chemicals and is potentially more accurate.
Technology could help prevent life-threatening infections in patients receiving chemotherapy.
The lack of anti-inflammatory molecules in the brain and other problems with the immune system can impair working memory and ability to learn, say Russian scientists published an article in the journal Neuroreport.
Multi-resistent microbes are a growing danger. The often unnecessary and mass use of antibiotics causes the impassivity of pathogens against drugs. Infections that were easily curable up to now, may become life threatening.
As we grow older, our muscular function declines. A new study by researchers at Karolinska Institutet in Sweden shows how an unexpectedly high number of mutations in the stem cells of muscles impair cell regeneration. This discovery may result in new medication to build stronger muscles even when in old age