More men than women develop Parkinson’s disease and new work presented at the Federation of European Neuroscience Societies says that it is do to sex differences in how brain cells change. Parkinson’s disease affects about 9 million people and becomes increasingly prevalent with age.
The surface of water drops at 100 nm size changes with temperature. At room temperature, the surface water molecules of these droplets have much stronger interactions than a normal water surface. The structural difference corresponds to a difference in temperature of -50°C.Nanometric-sized water drops are everywhere, as droplets or aerosols in air, in our bodies as medication, and in rocks and oil fields. How they interact with their hydrophobic environment, at the curved droplet interface, a sub-nanometric region that surrounds the small pocket of water, could boost our understanding of atmospheric, biological and geological processes.
Tablet and phone marketing executives can sleep well tonight. While those devices are commonly blamed for recent sleep problems, beams of pure digital energy shot straight into the eyeballs will do that, a new paper seeks to shore up the failing claim that tiny particulate matter, PM 2.5 (2.5 microns per cubic meter of air), is impacting human health and should be the source of new regulations by the Environmental Protection Agency.
Though well-known cancers like breast and prostate cancer are still the most common, America has gotten really good at diagnosing rare cancers, according to a new study. This is a significant achievement, because rare cancers can be challenging to diagnose, often resulting in numerous physician visits, misdiagnoses, and substantial delays in diagnosis. Rare cancers have become an area of priority for some researchers and public health advocates because treatment options are often more limited and less effective than for more common cancers.
Though the trend has been to listen to environmental claims about the benefits of trees in cities, in science they have a well-established dark side: in urban cities, they produce a lot of ground-level ozone, the very thing environmentalists spent decades lobbying against.During hot days, trees emit compounds that worsen ozone, such as formaldehyde, which forms from isoprene, a volatile organic compound that trees can give off when temperatures are hot, and terpenes, which also interact with sunlight to create a "natural" smog. If you have witnessed the haze of the Great Smoky Mountains, you are breathing in natural pollution.
A new paper reports the development of nanoparticles that mimic the behavior of natural melanosomes, melanin-producing cell structures that protect our skin, eyes and other tissues from the harmful effects of ultraviolet radiation.
Ovaries constructed of 3-D printed scaffolds that house immature eggs were successful in boosting hormone production and restoring fertility by actually ovulating - and they produced healthy offspring which mothers also were able to nurse. By removing a female mouse's ovary and replacing it with a bioprosthetic ovary, the mouse was able to not only ovulate but also give birth to healthy pups. The moms were even able to nurse their young. The bioprosthetic ovaries are constructed of 3-D printed scaffolds that house immature eggs, and have been successful in boosting hormone production and restoring fertility in mice, which was the ultimate goal of the research.
Natural gas has seen a resurgence due to hydraulic fracturing ("fracking") which has allowed geologists and engineers to extract it from wells that were previously considered unusable. CO2 emissions from energy have plummeted back to early 1990s levels and emissions from dirtier forms of energy like coal are back at early 1980s levels.
A paper has linked Monarch butterfly populations to glyphosate - but only when it was first used, and not when it was most heavily used. It also linked the populations to seasonal variation. That is to be expected, except since it's 2017, they try to claim that's climate change rather than wetter weather in some years.
Though photos are considered more credible, if you are evangelizing a controversial energy type like wind, a cartoon may appear more persuasive. In a recent study, participants were shown one of two versions of the same set of brochures. Each set was designed to debunk a myth about wind energy, the intent being to give readers desired information about wind energy and assuage their concerns. Each pair of brochures was identical in design, text, color, size, etc. The only difference was that the originally designed brochures featured a beautiful, professional photograph of wind turbines, while the look-alike brochures created for the study swapped out the photograph with a cartoon.
Solar power is all the rage, at least for government officials who don't understand physics but do spend a lot of time with environmental (and solar panel) lobbyists.Even in a small country like Belgium, solar can't even meet half of energy needs. In order for it to meet energy needs would require batteries, and that means doubling the cost for the public. If it were implemented in a large country like America, the cost would be astronomical, and that's without adding new transmission lines equivalent to every paved road in the U.S.
A new national poll says that parents are in a panic about things like swimming pools.Least likely to think their kids can swim; black parents. A slight majority of white parents are fine with kids swimming sans parental hovering. Almost all parents think a natural lake (84 percent) or ocean (87 percent) , lacking concrete and a diving board, is too dangerous to be allowed. Only 63 percent would even allow kids to swim in their backyard. Granted, pools can be dangerous, with some 5,000 child and teen injuries a year and around 1,000 drowning deaths occurring, but it shows we are bad at evaluating risk. Sharks attack fewer people than cows do, but who do you think parents worry more about after Shark Week?
We are at the top of the food chain, but some of our senses got short shrift when it came to other animals. Dogs can hear at frequencies we can't, mantis shrimp got 16 visual pigments and we are stuck with just 3.5, and don't even get other animals started on our pathetic sense of smell.But a weak nose in humans is really just a 19th century myth that won't go away, like homeopathy and organic food, according to a new analysis. Instead of being limited to a paltry 10,000 odors, humans can discriminate maybe one trillion different ones, the same as dogs and rodents. The faulty persistent claim is thanks to Paul Broca, a 19th century brain surgeon and anthropologist as the culprit for the falsehood that humans have an impoverished olfactory system.
