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A Tiny Electrical Gate in Nerve Cells May Be Behind Excessive Sweating
Many of us have skipped a light-colored shirt because it might show sweat. For one man, that concern had shaped his clothing choices since childhood. Heavy sweating across his face and torso often limited him to dark colors and required several changes of clothing a day. His maternal uncle had the same condition, and his…
This common pesticide may be quietly wiping out future bumblebees
Bumblebees may be small, measuring only about an inch long, but they play an enormous role in global agriculture. About one third of the world’s food production relies on pollinators such as bees. At the same time, these vital insects face growing pressure from pesticides and other environmental threats. Modern pesticides have helped farmers protect…
Scientists Finally Worked Out Why Some Hair Is Curly – And It Starts Beneath The Skin : ScienceAlert
If you’re sick of your dead-straight hair or untameable curls, the blame doesn’t start with your wash and dry routine, or even the temperature or humidity of your surroundings. It begins below the skin’s surface with hundreds of thousands of tiny follicles littering your scalp. In 2005, scientists dissected human scalp follicles and found that…
‘Fireball’ meteorite that smashed into New Jersey home contains ingredients of life from ancient proto-planet
Scientists have discovered the building blocks of life inside a meteorite that smashed through a New Jersey home two years ago. The space rock contains amino acids, carbon compounds and other “prebiotic” molecules similar to what may have helped kick-start life on our planet, a new study shows. Scientists on the study team — led…
Why do astronauts’ bodies waste away? Space-station study points to mitochondria
The mitochondrion (green in this false-colour transmission electron micrograph) could have a role in the physiological effects of microgravity.Credit: Jose Calvo/SPL Exposure to microgravity aboard the International Space Station causes mitochondria in human cells and in worms to produce fewer proteins, researchers have found. The work also identified a previously unknown molecular pathway that translates…
Doctored data sets could trick AI agents
Credit: Denis Borisov/Getty Researchers are increasingly using autonomous artificial-intelligence agents for data interpretation. The accuracy of this analysis depends on the data sets that are available to these programs, and a new study documents how easy it is for fraudsters to ‘poison’ these resources by uploading manipulated data sets that closely resemble the original ones…