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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...

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...

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...

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...

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.

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?

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.

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.