Intermittent fasting, and fasting in general, has been a popular fad health gimmick, but the science isn't on its side. Instead, proponents believe mice are little people so if mice weaned on starvation diets lived longer, people would also.
Sour beer is not a defect. Some people like the tart, tangy brew which results when wild yeast and bacteria are allowed to grow in freshly brewed beer (wort) and then ferment. It's the opposite of the fresher beer many desire and began as a niche market in in Europe long ago. Now it's taking off in the U.S. the way IPAs did a decade ago.
The Atacama Large Millimeter/submillimeter Array (ALMA) in Chile recently took a census of stellar eggs in the constellation Taurus and their evolution state in order to better understand how and when a stellar embryo transforms to a baby star deep inside a gaseous egg. They also found a bipolar outflow, a pair of gas streams - that could be telltale evidence of a truly newborn star.
Life developed when there was no oxygen on earth. It was an anoxic environment dominated by bacteria, who instead of oxidation and reduction, as our mitochondria do to produce energy, probably extracted various substances by means of fermentation.But there has long been another possibility; a kind of “oxygen-free respiration” hinted at in studies on primordial microbes that are still found in anoxic habitats today. There have been found genes in microbes that perhaps encode for a primordial respiration enzyme. Yet proving the existence of this respiratory enzyme and isolating it requires time and effort. The complex is fragile and often fell apart during attempts to isolate it from the membrane.
Compared to cisgender people (gender identity corresponds to their sex), an analysis of over 600,000 adults finds transgender and gender-diverse adults are three to six times more likely to be diagnosed as autistic. The findings are simply exploratory and about co-occurrence between gender identity and autism diagnoses, they cannot inform or suggest causal links. These correlations have confounders.
Egyptian coffins and mummy cases have been found covered in a mysterious 'black goo'. What is this goo made from and what can it reveal about Egyptian funerary practice? The British Museum's Kate Fulcher has detailed answers but you can read a summary below.Djedkhonsiu-ef-ankh died almost 3,000 years ago in ancient Egypt. He was a priest in the temple of Amun at Karnak, where he was an ‘Opener of the Doors of Heaven’ - permitted to open the temple sanctuary which contained the image of their deity.
An annotated list of 219 pathogens that infect plants in Brazil, including many agriculturally important species, shows just how precarious things can be when it comes to maintaining an affordable, sustainable food supply.
We eat various foods and our metabolism converts it to energy our bodies can use. This is a hallmark of life, across plants, animals, algae and bacteria. Energy is a defining characteristic of living.
A lava tube is just what it sounds like; a cave created when the surface of lava hardens but continues to flow underneath. When that trickles to a halt, the cave is left behind.These remaining caves exist on Earth and high-resolution pictures taken by interplanetary probes inferred lava tubes on Mars and Luna by observing linear cavities and sinuous collapse chains where the galleries cracked. A new paper measured the size and gathered the morphology of lunar and Martian collapse chains (collapsed lava tubes), using digital terrain models obtained through satellite stereoscopic images and laser altimetry taken by interplanetary probes.
Scientists have sequenced the genome of the tuatara, a single species reptile which originated in the Triassic period around 250 million years ago but is now only found in New Zealand, and it revealed an unusual architecture - it is mammal and reptile. Its genome shares features with those of mammals such as the platypus and echidna.Some sequences of DNA move or jump location, they are even referred to as 'jumping genes', and those found in the tuatara are most similar to those found in platypus while others are more similar to those in lizards.
Evidence of prehistoric fluting techniques, using hammering or pressure to create a groove, has been found on the Arabian peninsula from 8,000 years ago.Archeological finds are not new on the Arabian peninsula. There is evidence for lithics (stone tools) but evidence showed they were less advanced than northeast Africa or the Levant. In Europe, the Levant and Africa, the Middle Paleolithic showed use of Levallois flaking methods, including predetermined forms of flaking products. Like spear tips, which gave hunters a big advantage in food. But new work also shows fluting, which was more common n Arabia.
Experts asked to rank 20 ways Artificial Intelligence could be used to facilitate crime over the next 15 years, in order of concern, listed "deepfakes" - fake audio or video content so real it would have been considered conclusive just a few years ago - as number one.The 20 ways were ranked in order of concern based on the harm AI could cause, the potential for criminal profit or gain, how easy they would be to carry out and how difficult they would be to stop.
The public was sold a false bill of goods by “grassroots” anti-vaping activists when they crusaded against e-cigarettes and e-cigarette flavors in front of city councils, state houses and the U.S. Congress throughout 2019.We were told that the seductively delicious flavors of Juuls and other e-cigarettes were luring youngsters to dangerous nicotine products. To curb underage vaping, the government needed to get rid of the flavored nicotine replacement products.
