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Newsletter Science X 

Expéditeur :not-for-reply@physorg.com

À :olivier hartmanshenn

lun. 26 mai à 05:34

Dear olivier hartmanshenn,

Here is your customized Science X Newsletter for week 21:

	Infrared contact lenses allow people to see in the dark, even with their eyes closed Neuroscientists and materials scientists have created contact lenses that enable infrared vision in both humans and mice by converting infrared light into visible light. Unlike infrared night vision goggles, the contact lenses, described in the journal Cell, do not require a power source—and they enable the wearer to perceive multiple infrared wavelengths. Because they're transparent, users can see both infrared and visible light simultaneously, though infrared vision was enhanced when participants had their eyes closed.
	Jupiter was formerly twice its current size and had a much stronger magnetic field, study says Understanding Jupiter's early evolution helps illuminate the broader story of how our solar system developed its distinct structure. Jupiter's gravity, often called the "architect" of our solar system, played a critical role in shaping the orbital paths of other planets and sculpting the disk of gas and dust from which they formed.
	One of Africa's most widespread snakes could be an agricultural hero in disguise New research from the University of the Witwatersrand in Johannesburg, South Africa, has revealed that puff adders (Bitis arietans) can be highly efficient at controlling rodent populations that threaten agricultural production on the continent.
	Vitamin D supplements help slow telomere shortening linked to biological aging Results from the VITAL randomized controlled trial reveal that vitamin D supplementation helps maintain telomeres, protective caps at the ends of chromosomes that shorten during aging and are linked to the development of certain diseases.
	Archaeologist sailing like a Viking makes unexpected discoveries Archaeologist Greer Jarrett at Lund University in Sweden has been sailing in the footsteps of Vikings for three years. He can now show that the Vikings sailed farther away from Scandinavia and took routes farther from land than was previously believed to have been possible. In his latest study, he has found evidence of a decentralized network of ports, located on islands and peninsulas, which probably played a central role in trade and travel in the Viking era.
	Massive shark washes up on Cape Cod beach A massive shark washed up on a Cape Cod beach this week, as researchers try to figure out what led to the shark getting stranded.
	Native turtles return to Yosemite after removal of invasive bullfrogs The call of American bullfrogs was deafening when scientists from the University of California, Davis, first began researching the impact of invasive bullfrogs on native northwestern pond turtles at Yosemite National Park.
	Deep ocean technology offers never before seen images of lost WWI submarine A deep-sea training and engineering dive off the coast of San Diego provided an opportunity for never-before-seen imagery of the U.S. Navy submarine USS F-1, lost at sea in an accident on December 17, 1917, that resulted in the death of 19 crew members. The detailed, high-definition images of the final resting place of the WWI-era sub were made possible by a group of interagency teams, as well as advanced deep-sea imaging technology.
	Gut bacteria and acetate team up to cut fat in mice without muscle loss Researchers led by Hiroshi Ohno at the RIKEN Center for Integrative Medical Sciences (IMS) in Japan have discovered a new way to reduce obesity. Their study shows that supplying the gut with extra acetate reduces fat and liver mass in both normal and obese mice, as long as bacteria of the Bacteroides species are also present in the gut.
	Could black holes be growing inside stars—silently and forever? When people think of black holes, they imagine something dramatic: a star exploding in space, collapsing in on itself, and forming a cosmic monster that eats everything around it. But what if black holes didn't always begin with a bang? What if, instead, they started quietly—growing inside stars, which still appear alive from the outside, without anyone noticing?
	Physicists determine how to cut onions with fewer tears A team of physicists, biologists and engineers at Cornell University, in the U.S., has discovered some of the factors that lead to more or less spray when cutting onions and found a couple of ways to reduce the amount of eye irritation. The group has published a paper describing their study on the arXiv preprint server.
	Teeth first evolved as sensory tissue in the armored exoskeletons of ancient fish, fossil scans find Anyone who has ever squirmed through a dental cleaning can tell you how sensitive teeth can be. This sensitivity gives important feedback about temperature, pressure—and yes, pain—as we bite and chew our food. However, the sensitive parts inside the hard enamel first evolved for something quite different.
	Ancient DNA study reveals ethnic cleansing impact on genetic landscape of Spain A team of researchers from the University of Huddersfield's Archaeogenetics Research Group has provided fresh insight into the genetic landscape of Spain.
	Companionship rises but support from friends falls when romantic partners become best friends, study shows Colorado State University-led research explored the nuanced dynamics of identifying a romantic partner as a best friend and its implications for well-being. Only 14.4% of partnered U.S. adults call their romantic partner a best friend, according to the study, a choice linked with more companionship yet less perceived social support than keeping a separate best friend.
	Hawaiian volcanic rocks reveal Earth's core contains vast hidden gold reserves Earth's largest gold reserves are not kept inside Fort Knox, the United States Bullion Depository. In fact, they are hidden much deeper in the ground than one would expect. More than 99.999% of Earth's stores of gold and other precious metals lie buried under 3,000 km of solid rock, locked away within Earth's metallic core and far beyond the reaches of humankind.
	Common antidepressants could help the immune system fight cancer A widely used antidepressant drug could help the immune system fight cancer, according to a new UCLA research study.
	Mystery of 'very odd' elasmosaur finally solved: One of North America's most famous fossils identified as new species A group of fossils of elasmosaurs—some of the most famous in North America—have just been formally identified as belonging to a "very odd" new genus of the sea monster, unlike any previously known.
	A common enzyme takes on a surprising role in preventing cancer Researchers at Duke University Medical Center and Wake Forest University School of Medicine have identified ALDH4A1, a mitochondrial proline-metabolizing enzyme, as a third structural component of the mitochondrial pyruvate carrier (MPC) complex. Forming a trimeric assembly with MPC1 and MPC2, ALDH4A1 maintains MPC integrity and facilitates pyruvate import into mitochondria.
	Detecting the primordial black holes that could be today's dark matter Besides particles like sterile neutrinos, axions and weakly interacting massive particles (WIMPs), a leading candidate for the cold dark matter of the universe are primordial black holes—black holes created from extremely dense conglomerations of subatomic particles in the first seconds after the Big Bang.
	PFAS detected in most US beers, with highest levels near contaminated water Infamous for their environmental persistence and potential links to health conditions, per- and polyfluoroalkyl substances (PFAS), often called forever chemicals, are being discovered in unexpected places, including beer.