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279,036 articles from PhysOrg
NASA expands high-end computing system for climate simulation
NASA's Goddard Space Flight Center in Greenbelt, Md., made available to scientists in August the first unit of an expanded high-end computing system that will serve as the centerpiece of a new climate simulation capability. The larger computer, part of NASA's High-End Computing Program, will be hosting the agency's modeling contributions to the Intergovernmental Panel on Climate Change (IPCC) and...
Rewriting general relativity? Putting a new model of quantum gravity under the microscope
Does an exciting but controversial new model of quantum gravity reproduce Einstein's theory of general relativity? Scientists at Texas A&M University in the US explore this question in a paper appearing in Physical Review Letters and highlighted with a Viewpoint in the August 24th issue of Physics.
'Glow-in-the-dark' red blood cells made from human stem cells
Victorian stem cell scientists from Monash University have modified a human embryonic stem cell (hESC) line to glow red when the stem cells become red blood cells.
Alcohol abuse screening/brief interventions in community hospital emergency department
There are an estimated 7.6 million alcohol-related emergency department (ED) visits each year in the country. A first step in identifying an alcohol problem is screening all ED patients utilizing two well-researched screening tests. Once identified, one technique that has proven successful is motivationally-based brief interviews focused on reducing alcohol use. The research to date, however, has...
Employees who are engaged in their work have happier home life
A Kansas State University study shows that invigorated and dedicated employees carry over their positive work experiences for a happier home life.
IU national survey finds majority of Americans believe 'myths' about health care reform
Do Americans believe controversial assertions about health care reform including death panels, threats to Medicare, abortions, illegal immigrants, and other claims which the White House have labeled as untrue "myths?"
Lower-cost solar cells to be printed like newspaper, painted on rooftops
Solar cells could soon be produced more cheaply using nanoparticle "inks" that allow them to be printed like newspaper or painted onto the sides of buildings or rooftops to absorb electricity-producing sunlight.
Official tells Google to erase Swiss street views
(AP) -- A Swiss government official is demanding that Google Inc. immediately take off the Internet any image of Switzerland in its "Street View Maps," and the company said Monday it would discuss the matter with the privacy rights regulator.
Scientists discover new species of crustacean on Lanzarote
They gracefully swim through the complete darkness of submarine caves, constantly on the lookout for prey. Instead of eyes, predatory crustaceans of the class Remipedia rely on long antennae which search the lightless void in all directions. Like some type of science fiction monster, their head is equipped with powerful prehensile limbs and poisonous fangs.
Strong link found between concussions and brain tissue injury (w/ Video)
Concussions, whether from an accident, sporting event, or combat, can lead to permanent loss of higher level mental processes. Scientists have debated for centuries whether concussions involve structural damage to brain tissue or whether physiological changes that merely impair the way brain cells function, explain this loss. Now, for the first time, researchers at Albert Einstein College of...
Study finds Medicare prescription benefit program has exceeded expectations
The program created to provide Medicare recipients with prescription drug benefits exceeded expectations during its first two years, extending pharmacy coverage to most seniors while reducing their overall spending on drugs, according to a new RAND Corporation study.
Twitter and health care -- can a tweet a day keep the doctor away?
Twitter, the increasingly popular social networking tool that was at first merely a convenient way to stay in touch with friends and family, is emerging as a potentially valuable means of real-time, on-the-go communication of healthcare information and medical alerts, as described in a feature article in the Medical Connectivity section of the latest issue of Telemedicine and e-Health, a...
What she sees in you -- facial attractiveness explained
When it comes to potential mates, women may be as complicated as men claim they are, according to psychologists.
When cells run out of fuel
Parkinson's disease is caused by the degeneration of neurons in the midbrain. The mechanisms leading to the loss of these neurons, however, are largely unknown. Recent research revealed that about ten per cent of cases are caused by defects in so-called Parkinson-associated genes. Furthermore, mitochondria, the cellular powerhouses, seem to play a major role.
Consumption of sugar substitutes assists in long-term weight control
A new study published in the International Journal of Obesity reports that consumption of sugar-free beverages sweetened with low-calorie sweeteners increases dietary restraint, a key aspect of successful weight maintenance.
NASA sees some strong thunderstorms in Bill's center as he drenches eastern Canada
Bill is still holding onto hurricane status near Nova Scotia, and will be bringing a lot of rain and heavy surf to Nova Scotia, Prince Edward Island and Newfoundland. Today, Sunday, August 23, NASA infrared satellite imagery revealed cold high thunderstorm clouds around Bill's eye, indicating there is still some powerful convection and strong thunderstorms happening in the storm.
New robots mimic fish's swimming
(PhysOrg.com) -- Borrowing from Mother Nature, a team of MIT researchers has built a school of swimming robo-fish that slip through the water just as gracefully as the real thing, if not quite as fast.
Opening the Door for CO2
(PhysOrg.com) -- Until recently, factory smokestacks that produced nothing but carbon dioxide and water vapor were considered exemplary. Now CO2 has become notorious as a greenhouse gas, and the danger of climate change has become one of the most pressing environmental problems of our time. How can we slow the increasing release of CO2?
Searching for an interglacial on Greenland
The first season of the international drilling project NEEM (North Greenland Eemian Ice Drilling) in north-western Greenland was completed at August 20th.
Tipping elements remain a 'hot' issue
(PhysOrg.com) -- Research published by climate scientists at the University of East Anglia (UEA) has been named one of the most highly-cited in its field in the last two years.
Why 'thick' blood protects from a heart attack
"Thick" blood can cause heart attack and stroke, but also prevent them. Scientists at Heidelberg University Hospital have explained the mechanism of this clinical paradox for the first time on an animal model. Mice with a greater tendency to form blood clots have larger plaques in their vessels, but they are more stable. Thus, there is less risk that these plaques will rupture and obstruct...
How a Solar-Hydrogen Economy Could Supply the World's Energy Needs
(PhysOrg.com) -- As the world's oil supply continues to dry out every day, the question of what will replace oil and other fossil fuels is becoming more and more urgent. According to the World Coal Institute, at the present rate of consumption, coal will run out in 130 years, natural gas in 60 years, and oil in 42 years. Around the world, researchers are investigating alternative energy...
Nokia to make laptop, jumping on wireless trend
(AP) -- Nokia Corp., the world's largest maker of cell phones, says it will start making a small, light laptop, similar to ones other PC manufacturers are already selling through wireless carriers around the world.
Researchers Clone and Engineer Bacterial Genomes in Yeast and Transplant Genomes Back into Bacterial Cells
Researchers at the J. Craig Venter Institute (JCVI), a not-for-profit genomic research organization, published results today describing new methods in which the entire bacterial genome from Mycoplasma mycoides was cloned in a yeast cell by adding yeast centromeric plasmid sequence to the bacterial chromosome and modified it in yeast using yeast genetic systems.
SKorea seeks jail for disgraced cloning scientist
(AP) -- Prosecutors demanded a four-year prison term Monday for a South Korean scientist disgraced in a cloning scandal that shook the international scientific community and led to his trial on fraud and other charges.