Las montañas Mocho, en el centro de Jamaica, estuvieron una vez cubiertas de exuberantes bosques tropicales que ayudaban a controlar las lluvias. Ahora, buena parte de sus selvas y tierras agrícolas se han destruido y la gente sufre su efecto más devastador: una meteorología extrema. El área “fue...

El próximo 19 de diciembre la Agencia Espacial Europea pondrá en órbita la misión Gaia, un satélite que medirá las distancias y movimientos de mil millones de estrellas de la Vía Láctea con una precisión histórica. El proyecto cuenta con una nutrida participación de investigadores españoles. Fuente :...

Investigadores del Vall d’Hebron han detectado una expresión anómala de ciertos factores en el tejido cardíaco de fetos afectados por cardiopatías. Identificarlos en la sangre materna puede ayudar a la detección precoz. Fuente : http://www.agenciasinc.es/Noticias/Descubren-una-a...

El nuevo sistema utiliza los signos de actividad de los roedores, en lugar de en capturas con trampas, para evaluar las poblaciones de topillo campesino. Este método mejora el seguimiento de los ejemplares y optimiza la gestión de las plagas. Esta especie causa importantes daños en la agricultura y puede provocar problemas de...

An international team including a University of Colorado medical school professor has identified a new disease related to NKH, a finding that resolves previously baffling cases including the death of a Colorado girl. Fuente : http://www.eurekalert.org/pub_releases/2013-12/uoc...

Harvard computer scientists have shown that an important class of artificial intelligence (AI) algorithms could be implemented using chemical reactions. In the long term, they say, such theoretical developments could open the door for "smart drugs" that can automatically detect, diagnose, and treat a variety of diseases using...

Human breast tumors transplanted into mice are excellent models of metastatic cancer and are providing insights into how to attack breast cancers that no longer respond to the drugs used to treat them, according to research from Washington University School of Medicine in St. Louis. Fuente :...

Health care spending is a large -- and ever increasing -- portion of government budgets. Improving its efficiency has therefore become critically important. In the first-ever study to estimate health spending efficiency by gender across 27 industrialized nations, researchers discovered significant disparities within...

New research examined how changes in the genetic composition of breast cancer tumors after brief exposure to either biologic therapy or chemotherapy can predict future clinical outcomes in patients. Fuente : http://www.eurekalert.org/pub_releases/2013-12/uhc...

The discoverers of how cells secrete vital substances such as insulin will bring their new Nobel prizes and address the ASCB meeting in New Orleans. Press welcome. Fuente : http://www.eurekalert.org/pub_releases/2013-12/asf...

Although researchers have determined the ages of rocks from other planetary bodies, the actual experiments -- like analyzing meteorites and moon rocks -- have always been done on Earth. Now, for the first time, researchers at Caltech have successfully determined the age of a Martian rock -- with experiments performed on Mars....

Researchers are developing a new kind of geothermal power plant that will lock away unwanted carbon dioxide underground -- and use it as a tool to boost electric power generation by at least 10 times compared to existing geothermal energy approaches. Fuente : http://www.eurekalert.org/pub_releases/2013-12/osu...

The world seems to be getting more complex every day -- some might say too complex. But what if every interaction, every potential conflict we have is really very simple and easy to understand? Dr. Johnson working with a team of researchers, has found a mathematical formula proving just that: the dynamics of every escalating...

Minneapolis Heart Institute Foundation research cardiologist Dr. Michael Miedema is the lead author of a paper published by Circulation -- Cardiovascular Imaging, a journal of the American Heart Association, that suggests a connection between an adult's height and the prevalence of coronary artery calcium, a direct marker of...

Repeated blows to the head during a season of contact sports may cause changes in the brain's white matter and affect cognitive abilities even if none of the impacts resulted in a concussion. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/6...

The degree to which students' exam scores differ owes more to their genes than to their teachers, schools or family environments, according to new research. The study, which took place in the UK, looked at students' scores for their GCSE's (General Certificate of Secondary Education), a UK-wide...

Scientists have discovered how to fix sleep disturbances in mice with traumatic brain injuries -- a discovery that could lead to help for hundreds of thousands of people who have long-term and debilitating sleep and wakefulness issues after they suffer concussions. Fuente :...

Bioengineers have developed a hydrogel scaffold for craniofacial bone tissue regeneration that starts as a liquid, solidifies into a gel in the body and liquefies again for removal. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/t...

Indígenas del pueblo amazónico mundurukú hicieron oír en la capital de Brasil su reclamo de demarcación de tierras y derecho a consulta previa para frenar el complejo hidroeléctrico del Tapajós, que podría inundar varias de sus aldeas. “Hasta hoy nadie del gobierno vino a hablarnos. La tierra...

Las débiles explosiones que oyen a lo lejos les sirven como recordatorio de que, aunque una nueva valla los protege en este pueblo, la guerra civil que desde hace dos años y medio desangra su patria no está tan lejos. Separada de tierra árabe desde hace casi cinco décadas, la comunidad drusa en los Altos […]El artículo...

Este es el segundo de dos artículos sobre las acusaciones de racismo en el sistema de bienestar infantil en Filadelfia.El artículo Los huérfanos de la pobreza fue publicado originalmente en IPS Agencia de Noticias.De izquierda a derecha: Eric Gjertsen, de Payday, Carolyn Hill y Celyne Camen, de la Red Cada Madre es una Madre...

There is an optimal amount of strain that a beating heart can generate and still beat at its usual rate, once per second. Researchers have now shown that this "sweet spot" depends on the stiffness of the collagen framework that the heart's cells live within. Fuente :...

Young women, ages 55 years or below, are more likely to be hospitalized for an acute myocardial infarction (AMI) and to die within the first 30 days than men in the same age group, according to a new study published in Journal of Women’s Health. Fuente :...

Heart failure in children is an important cause of childhood health problems and death. The Children’s Heart Failure Study Group of the Canadian Cardiovascular Society, in collaboration with the Canadian Pediatric Cardiology Association, has developed new guidelines to assist practitioners in...

From 2000 to 2010, about 1,900 cyclones churned across the top of the world each year, leaving warm water and air in their wakes -- and melting sea ice in the Arctic Ocean. That's about 40 percent more than previously thought, according to a new analysis of these Arctic storms. Fuente :...

To protect themselves, some animals rapidly change color when their environments change, but chameleons change colors in unusual ways when they interact with other chameleons. Researchers have discovered that these color changes don't happen "out-of-the-blue" -- instead, they convey different types...

Air flows mostly in a one-way loop through the lungs of monitor lizards -- a breathing method shared by birds, alligators and presumably dinosaurs, according to a new study that may push the evolution of this trait back to 270 million years ago. Fuente :...

Researchers have made strides in staying ahead of Huntington’s disease, a devastating, incurable disorder that results from the death of certain neurons in the brain. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/4...

After a year of observations, scientists waited with bated breath on Nov. 28, 2013, as Comet ISON made its closest approach to the sun, known as perihelion. Would the comet disintegrate in the fierce heat and gravity of the sun? Or survive intact to appear as a bright comet in the pre-dawn sky?...