Varios diputados se enzarzan en el Congreso por la salida de jóvenes científicos de España. Pese a que el término se utiliza con frecuencia para describir uno de los mayores problemas de la ciencia, no existen cifras que documenten su magnitud ||| Fuente :...

Ever wonder why sand can both run through an hourglass like a liquid and be solid enough to support buildings? It's because granular materials -- like sand or dirt -- can change their behavior, or state. Researchers from North Carolina State University have found that the forces individual grains...

To feed a global population projected to reach 9.6 billion by 2050, we will need to increase food production by as much as 70 percent. Achieving that goal requires civilization to address overpopulation and overconsumption through a bottom-up movement focused on agricultural, environmental and...

Chemists at the University of Liverpool have created a new technique that could be used in industry to separate complex organic chemical mixtures. Fuente : http://www.eurekalert.org/pub_releases/2013-02/uol...

Rutgers University physicists have demonstrated extremely flexible organic semiconductors that withstood multiple bending cycles in which the devices were rolled to a radius as small as 200 micrometers. The technology holds promise for making low-cost flexible electronics -- conceivably video...

Ecologists from Umeå University and the Norwegian University of Science and Technology in Trondheim have studied fish communities and fish habitat and reviewed the importance of winter conditions for fish in streams and rivers in cold regions. The findings are now being published in the journal...

New research takes a new look at an urban area's access to healthier foods. Fuente : http://www.eurekalert.org/pub_releases/2013-02/uoc...

Physicists of the University of Vienna together with researchers from the University of Natural Resources and Life Sciences Vienna developed nano-machines which recreate principal activities of proteins. They present the first versatile and modular example of a fully artificial protein-mimetic...

Having diabetes doubles a person's risk of dying after a heart attack, but the reason for the increased risk is not clear. A new University of Iowa study suggests the link may lie in the over-activation of an important heart enzyme, which leads to death of pacemaker cells, abnormal heart rhythm,...

Researchers have studied viruses as agents of disease in humans, domestic animals and plants, but a study of plant viruses in the wild may point to a more cooperative, benevolent role of the microbe, according to a Penn State virologist. Fuente : http://www.eurekalert.org/pub_releases/2013-02/ps-...

Considering the many things a cancer patient has to think about, it's easy to understand why maintaining proper nutrition may not be top of mind. Fuente : http://www.eurekalert.org/pub_releases/2013-02/smh...

University at Buffalo engineers have created a more efficient way to catch rainbows, an advancement in photonics that could lead to technological breakthroughs in solar energy, stealth technology and other areas of research. Fuente : http://www.eurekalert.org/pub_releases/2013-02/uab...

Evaluation of PEPFAR, a new report from the Institute of Medicine, presents the results of an assessment of the President's Emergency Plan for AIDS Relief. Fuente : http://www.eurekalert.org/pub_releases/2013-02/nao...

A decades long scientific study shows carefully designed pre-school programs improve a person's competence through adulthood and provide a good return on investment. Fuente : http://www.eurekalert.org/pub_releases/2013-02/vt-...

Bunions bothering you? How about lower back pain, or impacted wisdom teeth? As we humans evolved over the millennia to walk on two legs, grow larger brains and shorter jaws, bear big babies and live longer, we've also experienced some negative consequences. But keeping our evolutionary history in mind can help us better deal...

Administration of the active compound tetrahydroxystilbene glucoside derived from the Chinese herbal medicine Polygonum multiflorum Thunb, reversed both overexpression of α-synuclein, a small protein found in the brain, and its accumulation using a mouse model of Alzheimer's disease. These results, which may shed light on...

Researchers have discovered that many women with low-grade serous carcinoma of the ovary or peritoneum have seen their tumors stabilize or shrink after taking a regular dose of the compound selumetinib. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/A...

A new study reveals the first clear-cut evidence the expanding debris of exploded stars produces some of the fastest-moving matter in the universe. This discovery is a major step toward understanding the origin of cosmic rays, one of Fermi's primary mission goals. Fuente :...

Very detailed new observations of the remains of a thousand-year-old supernova have revealed clues to the origins of cosmic rays. For the first time the observations suggest the presence of fast-moving particles in the supernova remnant that could be the precursors of such cosmic rays. Fuente :...

A search for long-lived balancing selection has found at least six regions of the genome where humans and chimpanzees share a combination of genetic variants. These human genetic variation dates back to a common ancestor with chimpanzees millions of years ago, before the species split. Fuente :...

There's a billboard up ahead, a roadside sign full of language and imagery. Next stop: the emotionally distracted zone. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/i...

A new study has linked exposure to two common perfluorinated chemicals with osteoarthritis. The study is the first to look at the associations between perfluorooctanoic acid and perfluorooctanesulfonic acid, and osteoarthritis, in a study population representative of the United States. Fuente :...

Restoring vision might sometimes be as simple as turning out the lights. That's according to a study in which researchers examined kittens with a visual impairment known as amblyopia before and after they spent 10 days in complete darkness. Fuente :...

The first animal model of recent human evolution reveals that a single mutation produced several traits common in East Asian peoples, from thicker hair to denser sweat glands, and computer models suggest the variation arose about 30,000 years ago in central China. Fuente :...

Nitric oxide, the versatile gas that helps increase blood flow, transmit nerve signals, and regulate immune function, appears to perform one more biological feat -— prolonging the life of an organism and fortifying it against environmental stress, according to a new study. Fuente :...

Using modified laws of gravity, researchers have closely predicted a key property - velocity dispersion - measured in faint dwarf galaxies that are satellites of the nearby giant spiral galaxy Andromeda. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/8...

Many rural communities in the United States use aerated lagoon systems to treat their wastewater. In a new study, researchers determined the effectiveness of rural lagoon systems at removing drugs, chemicals and hormone contaminants from the sewage before the water is discharged back into local...

Using functional magnetic resonance imaging for before-and-after analysis, a team of researchers discovered positive changes in brain activity in children with autism who received a particular type of behavioral therapy. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/s...

People with a more resilient personality profile are more likely to have greater aerobic capacity, which may contribute to better health and longevity. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/K...