Very recently, a combination of the precise measurements of the mass of the top quark obtained by the CDF and DZERO experiments at the Fermilab Tevatron collider with those produced by the ATLAS and CMS experiments at the CERN LHC collider has been produced, obtaining a result of 173.34 GeV, which surprised nobody -of course- with a very small total error bar: 0.76 GeV, a mere 760 MeV, not even a proton's mass.

At the surface, Antarctica is a motionless and frozen landscape. Yet hundreds of miles down the Earth is moving at a rapid rate, new research has shown.

The study, led by Newcastle University, UK, and published this week in Earth and Planetary Science Letters, explains for the first time why the upward motion of the Earth's crust in the Northern Antarctic Peninsula is currently taking place so quickly.

Previous studies have shown the earth is 'rebounding' due to the overlying ice sheet shrinking in response to climate change. This movement of the land was understood to be due to an instantaneous, elastic response followed by a very slow uplift over thousands of years.

While most of Antarctica is remaining cold, rapid increases in summer ice melt, glacier retreat and ice shelf collapses are being observed in Antarctic Peninsula, where the stronger winds passing through Drake Passage are making the climate warm exceptionally quickly.

Until this study, published in Nature Climate Change, Antarctic climate observations were available only from the middle of last century.

By analysing ice cores from Antarctica, along with data from tree rings and lakes in South America, Dr Abram and her colleagues were able to extend the history of the westerly winds back over the last millennium.

"The Southern Ocean winds are now stronger than at any other time in the past 1,000 years," Abram said.

Eating more fruits and vegetables may reduce the risk of stroke worldwide, according to new research in the American Heart Association's journal Stroke.

Researchers conducted a meta-analysis of 20 studies published over the last 19 years to assess the effects of fruit and vegetable consumption on risk of stroke globally. The combined studies involved 760,629 men and women who had 16,981 strokes.

Stroke risk decreased by 32 percent with every 200 grams of fruit consumed each day and 11 percent with every 200 grams of vegetables consumed each day.

(SACRAMENTO, Calif.) — Children with autism experience deficits in a type of immune cell that protects the body from infection. Called granulocytes, the cells exhibit one-third the capacity to fight infection and protect the body from invasion compared with the same cells in children who are developing normally.

The cells, which circulate in the bloodstream, are less able to deliver crucial infection-fighting oxidative responses to combat invading pathogens because of dysfunction in their tiny energy-generating organelles, the mitochondria.

The study is published online in the journal Pediatrics.

The anti-wheat movement is a popular health fad in America and critics of that staple now have a new weapon in their culture war - ditching it makes people more cooperative. And they explain Genghis Khan and Mao.

Defenders of wheat have their own ammunition - rice leads to despotism and communism. Cultural psychologists writing in Science claim that they can explain psychological differences between the people of northern and southern China mirror and also the differences between community-oriented East Asia and the more individualistic Western world - southern China has grown rice for thousands of years, whereas the north has grown wheat.

States can pass all of the laws they want but a US Army soldier, active duty or otherwise, is going to be in serious trouble if there is evidence they have used marijuana. It does not matter if you claim to have pain or get a note from your doctor, the Army has its own standards above and beyond what Washington, D.C. mandates and states have no more jurisdiction than foreign countries do.

Yet some soldiers are reckless and risk their careers and among that group, many think Spice - synthetic marijuana - will be harder to detect. Social workers from the University of Washington have found that among active-duty Army personnel they surveyed, Spice is the most abused substance.

Magnetic devices like hard drives, magnetic random access memories (MRAMs), molecular magnets, and quantum computers depend on the manipulation of magnetic properties. In an atom, magnetism arises from the spin and orbital momentum of its electrons. 'Magnetic anisotropy' describes how an atom's magnetic properties depend on the orientation of the electrons' orbits relative to the structure of a material. It also provides directionality and stability to magnetization. Publishing in Science, researchers led by EPFL combine various experimental and computational methods to measure for the first time the energy needed to change the magnetic anisotropy of a single Cobalt atom.

In Europe, there is a rush to ban and label things regardless of information. In America, there is a movement to do the same. In Asia, it is open season on the public regarding bizarre supplements, alternative medicine and natural therapies.

Yet in many ways, Asians are healthier. That shows that everyone can be right in their claims when the data is so scattered and people who insist their idea will be a one-size-fits-all solution are not being evidence-based.

So, claims that more labels and symbols will improve public health may be true -  they haven't shown to be true in America but perhaps it just takes more time - but how to do that effectively is a mystery. When will people reach label fatigue?

Here is the chemical list of an organic egg.

An ancient kitten-sized predator is one of the smallest species reported in the extinct order Sparassodonta, which were carnivorous marsupials (metatherian mammals, anyway) native to South America lived in Bolivia about 13 million years ago.

The researchers can't name the new species because the specimen lacks well-preserved teeth, which are the only parts preserved in many of its close relatives.

The skull, which would have been a little less than 3 inches long if complete, shows the animal had a very short snout. A socket, or alveolus, in the upper jaw shows it had large, canines, that were round in cross-section much like those of a meat-eating marsupial, called the spotted-tailed quoll, found in Australia today, the researchers said.