In the 1980s, scientists captured the precise mechanics of a protein machine. It looked strange, to researchers its tall thin structure with stubby legs invoked the enchanted broomstick that stole the show in "The Sorcerer's Apprentice" segment of Disney's 1940 Fantasia film.
A molecule known as coenzyme A plays a key role in cell metabolism by regulating the actions of nitric oxide. according to a new study.
Cell metabolism is the ongoing process of chemical transformations within the body's cells that sustains life, and alterations in metabolism are a common cause of human disease, including cancer and heart disease. Their findings about the mechanisms of action for coenzyme A, as well as discovering a new class of enzymes that regulate coenzyme A-based reactions.
Chemical analysis of some of the world’s oldest rocks has provided the earliest record yet of Earth's atmosphere and shows that the air 4 billion years ago was very similar a billion years later, when the atmosphere, though it likely would have been lethal to oxygen-dependent humans, supported a thriving microbial biosphere that ultimately gave rise to the diversity of life on Earth today.Until now, researchers have had to rely on widely varying computer models of the earliest atmosphere's characteristics.
Dinosaurs once flourished in Europe but when an asteroid hit 66 million years ago, they died quickly, according to a new study.
That an asteroid killed off the dinosaurs is widely held, but until recently dinosaur fossils from the late Cretaceous, the final period of dinosaur evolution, were almost exclusively found in North America. This raised questions about whether the sudden decline of dinosaurs in the American and Canadian west was merely a local story.
The new study synthesizes research on European dinosaurs over the past two decades. Fossils of late Cretaceous dinosaurs are now commonly discovered in Spain, France, Romania, and other countries.
According to the European Monitoring Centre on Drugs and Drug Addiction, cocaine is the second most commonly used illegal addictive in Europe, after cannabis. A discovery related to the mechanism behind a dopamine transporter could help in the development of future medical treatment against cocaine addiction.
In space no one can hear you bleed, but what about on a private spacecraft? The commercial aviation industry has medical care standards, as does NASA for traditional space missions. Eventually someone is going to tell Elon Musk and Richard Brandon that the commercial space transportation industry will need to define medical care practices as well. There are well-known risks, of course, but there can be disclaimers 400 pages long and if an attorney stands in front of a jury and talks about what lax safety standards there are, someone with the passionate pleading skill of John Edwards will get a judgment that runs their companies into bankruptcy.
If you want to make your children neurotic, clinginess and overprotectiveness on your part - helicopter parenting - is the way to go.Assuming you don't want to cause that, it is still okay to hover over your dogs and cats, according to an analysis of pet owners by psychologists at U.C. Berkeley and California State University, East Bay.
For most people, they can extend their healthy lifespan by walking for 20 minutes a day. Yet most people don't do it.It's become a popular sport to criticize obese people while lamenting that our pop culture encourages people to be too thin. We should be criticizing people who don't go for walks rather than fat people if we care about lowering health care costs, according to a study of over 334,000 European men and women which found that twice as many deaths may be attributable to lack of physical activity compared with the number of deaths attributable to obesity.
In the future, if we use money to fund basic research for solar and stop subsidizing existing technology that does not work very well, there will be no energy crisis. In the time it takes you to read this article, the sun will provide enough energy to power the planet for a year.But that does not translate to everything. An international group of scientists has noted once again that "renewable" is not synonymous with "unlimited."
The change in global sea level rise since the beginning of the 20th century has been significantly larger than previous estimates according to new estimates in a new paper.The paper, co-authored by Carling Hay, a Harvard post-doctoral fellow in the Department of Earth and Planetary Sciences (EPS), and Eric Morrow, a recent PhD graduate, says that previous estimates of global sea-level rise from 1900-1990 had been over-estimated by as much as 30 percent. But it confirms previous estimates of sea-level change since 1990, and that suggests that the rate of sea-level change is increasing more quickly than previously believed.
Conformity is a bad thing, in media portrayals like Apple advertisements - yet then they have a lot of people who look a lot alike all standing in line to buy the latest iPhone.In reality, despite the claims of creative people who insist that only one brand is for creative people, they are conforming. It is human nature to conform. Former Vice-President Dan Quayle was once criticized for not knowing how to spell 'potato' while guest judging a spelling event. It was spelled wrong on the answer card and he knew it was wrong but he conformed and politicians and the public do the same thing every day.
It makes us follow the lead of computers, even if the machines give us the wrong advice.
People love that earthy smell after it rains. It turns out there is a good science reason for it, and it's been captured using high-speed imaging.Petrichor is the phenomenon first characterized by Australian scientists as the smell released after a light rain. Now scientists at MIT believe they may have identified the mechanism that releases this aroma, as well as other aerosols, into the environment.
A 21st century gold rush has led to a significant increase of deforestation in the tropical forests of South America. Researchers from the University of Puerto Rico have shown that between 2001 and 2013, around 1680 km2 of tropical forest was lost in South America as a result of gold mining, which increased from around 377 km2 to 1303km2 since 2007, which increased in the global economic crisis of 2008 and on. Around 90 percent of this forest loss occurred in just four areas and a large proportion occurred within the vicinity of conservation areas.
