As shoppers across the nation prepare to pounce on Black Friday sales, researchers at UC Berkeley are looking at what happens to commerce when there's no set price tag. In an exhaustive study of consumer behavior, they found that shoppers spend more money when engaged in a chain of goodwill known...

Creating a computer program to find relationships in networks, such as Google Plus and Facebook, may help users more easily set up and maintain privacy settings, according to researchers. Fuente : http://www.eurekalert.org/pub_releases/2013-11/ps-...

The device could be used in medical imaging, collision-avoidance detectors for cars, and interactive gaming. Fuente : http://www.eurekalert.org/pub_releases/2013-11/mio...

A drug that acts like a growth-promoting protein in the brain reduces degeneration and motor deficits associated with Huntington's disease in two mouse models of the disorder, according to a study appearing Nov. 27 in the Journal of Neuroscience. The findings add to a growing body of evidence that...

A team of researchers at Cold Spring Harbor Laboratory has identified a leukemia-specific stretch of DNA called an enhancer element that enables cancerous blood cells to proliferate in acute myeloid leukemia, a devastating cancer that is incurable in 70 percent of patients. Just as important, the findings offer a mechanistic...

Because the concept of permanent neurological injury has given way to recognition of the brain's potential for long-term regeneration ad reorganization, rehabilitations strategies are undergoing radical changes. The potential for five new translational interventions was examined in an article...

People with health insurance are more likely to use preventive services such as flu shots and health screenings to reduce their risk of serious illness, but they are no more likely than people without health insurance to engage in risky health behaviors such as smoking or gaining weight,...

Follow-up in older adults shows a high rate of anisometropia, or differing levels of visual abnormalities between eyes, reports a study in Optometry and Vision Science, official journal of the American Academy of Optometry. The journal is published by Lippincott Williams & Wilkins, a part of...

Ten years after a transplant, a cornea from a 71-year-old donor is likely to remain as healthy as a cornea from a donor half that age, and corneas from donors over 71 perform slightly less well but still remain healthy for most transplant recipients, according to a study funded by the National Eye...

Biologists are breathing a collective sigh of relief after learning that a monstrous fish found in a Burnaby, B.C., pond is not a northern snakehead. But their identification of its correct identity is still a serious concern. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/n...

A week after launching a new orbiter to investigate the upper atmosphere of Mars, NASA is sending a sounding rocket to probe the atmosphere of Venus. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/_...

The seafloor off the coast of Northern Siberia is releasing more than twice the amount of methane as previously estimated, according to new research results. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/1...

Cuando un portavoz de la jefa de la política exterior de la Unión Europea (UE), Catherine Ashton, divulgó el domingo 24 en su cuenta de Twitter que se había logrado un acuerdo sobre el programa nuclear de Irán, se trataba de un anuncio trascendental. “Si bien es solo un primer paso, se ha...

Los ejemplares masculinos de visón criados en cautividad con juguetes, piscinas y columpios obtienen una mejor respuesta de las hembras en la época de celo. La investigación ayudará a mejorar la reproducción de otras especies que tienen dificultades, como los osos panda. Fuente :...

Life originated as a result of natural processes that exploited early Earth's raw materials. Scientific models of life's origins almost always look to minerals for such essential tasks as the synthesis of life's molecular building blocks or the supply of metabolic energy. But this assumes that the mineral species found on Earth...

When a star explodes as a supernova, the material blasted outward from the explosion still glows hundreds or thousands of years later, forming a picturesque supernova remnant. What powers such long-lived brilliance? In the case of Tycho's supernova remnant, astronomers have discovered that a reverse shock wave racing inward at...

Researchers have developed a way to heal gaps in wires too small for even the world's tiniest soldering iron. Junctions between nanotubes have high resistance, slowing down the current and creating hotspots. The researchers use these hot spots to trigger a local chemical reaction that deposits metal that nano-solders the...

Researchers find that misfolded proteins form branched structures, which may have implications for Alzheimer's and other aggregation diseases. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/7...

Spontaneous bursts of coherent light from solid-state materials shed new light on how particles interact and may lead to ultrahigh-speed optoelectronic devices for telecommunications. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/U...

Scientists should take the conservative approach when searching for habitable zones where life-sustaining planets might exist, according to experts. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/I...

Our sense of smell is often the first response to environmental stimuli. Odors trigger neurons in the brain that alert us to take action. However, there is often more than one odor in the environment, such as in coffee shops or grocery stores. How does our brain process multiple odors received simultaneously? Fuente :...

Las mujeres víctimas de violencia de género en Líbano siguen a merced de los estrictos tribunales religiosos, mientras un proyecto de ley civil contra este tipo de agresiones continúa estancado en el parlamento. Una de las tantas libanesas que exigen el divorcio y el derecho de custodia de sus...

Actualmente la biotecnología ofrece una opción para regenerar órganos o tejidos que sufren lesiones graves o irreversibles. Se trata de soportes biosintéticos, reemplazos elaborados con células madre que al ser extraídas del mismo paciente facilitan la aceptación del injerto por el organismo....

“En general, la dieta del mexicano es de baja calidad”, declaró el doctor Juan Rivera Dommarco, director del Centro de Investigación en Nutrición y Salud, del Instituto Nacional de Salud Pública (INSP) Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

Researchers from Sweden have attempted to create an understanding to the subjective effects from use of Methoxetamine (MXE), a drug belonging to a class known as “legal highs” or “research chemicals,” and available for purchase on the Internet. Their study, Methoxetamine (MXE) – A Phenomenological...

GSA Bulletin articles posted online ahead of print in November cover sedimentology in the Sinai-Negev erg of Egypt and Israel; petrology in the Tongling area of Anhui Province in eastern China; paleotopography in the Central Andes of Argentina; sedimentology of the Monterey Submarine Canyon,...

The peer-reviewed journal Human Gene Therapy will celebrate its 25th anniversary in 2014. The Journal will commemorate its silver anniversary in several ways, including publishing a series of Perspectives by top Pioneers in the field of cell and gene therapy who will be featured in the 2014 issues...

La Universidad de Ginebra, en Suiza, en colaboración las universidades de Gante (Bélgica) y Friburgo (Alemania) ha creado plantas transgénicas resistentes a los rayos ultravioleta que producen altos niveles de antioxidantes. Fuente :...

Un estudio analiza la respuesta de los hombres heterosexuales al visualizar fotografías de mujeres tras haber inhalado oxitocina. Los resultados revelan una mayor actividad en las regiones de recompensa del cerebro al ver la cara de su compañera, a la que también calificaron como más atractiva que...