Los bosques tropicales aceleran su propia recuperación, capturando nitrógeno y carbono más rápido después de ser talados o deforestados para la agricultura. Los investigadores que trabajan en el Instituto Smithsonian de Investigaciones Tropicales (STRI) en Panamá creen que este descubrimiento...

En el interior de esta gran burbuja se oculta el embrión de una estrella que ya acumula una masa ocho veces superior a la de nuestro Sol.Esta imagen, tomada por el observatorio espacial Herschel de la ESA, fue publicada durante la primera presentación de los resultados científicos de la misión...

Un estudio de investigadores de la Universidad Politécnica de Madrid (España) revela que incluso en mercados energéticos en los que la energía eólica se integra con centrales produtoras de CO2, la contribución real a los objetivos de emisiones es positiva.El trabajo, que publica la revista......

Fuente : http://noticiasdelaciencia.com/not/8488//...

Admire Gumbo, de 26 años, detesta la idea de abandonar Zimbabwe e irse a Botswana. Sin embargo, ve que no tiene más opción que regresar al país vecino, donde trabajó durante tres años como obrero. “Me recibí de electricista, tengo un diploma nacional. Mientras estuve en Botswana, nunca tuve un...

La sonda Rosetta de la ESA saldrá del modo de hibernación dentro de 100 días para prepararse para el encuentro con su objetivo, el cometa 67P/Churyumov-Gerasimenko, hacia el que lleva viajando casi una década. Fuente : http://www.esa.int/ESA_in_your_country/Spain/Roset...

Artículo, de Psy’n'thesis, blog del doctor en psicología Antonio Crego, que recomendamos por su interés.El estrés puede tener consecuencias negativas sobre la salud, como es ampliamente conocido. Pero no para todas las personas. Kelly McGonigal, psicóloga de la Universidad de Stanford, presenta......

In a new study from the Montreal Neurological Institute and Hospital, the Neuro, McGill University with colleagues at the University of Montreal, researchers have discovered that nerve cells have a special "pre-assembly" technique to expedite the manufacture of proteins at nerve cell connections (synapses), enabling the brain...

Researchers at Princeton University have found that microRNAs -- small bits of genetic material capable of repressing the expression of certain genes -- may serve as both therapeutic targets and predictors of metastasis, or a cancer's spread from its initial site to other parts of the body. Fuente :...

Imagine giving a presentation to a roomful of customers when suddenly the projector fails. You whip out your smartphone, beam your PowerPoint presentation onto the conference room screen, and are back in business within seconds. This career-saving application and others like it are the promise of a new generation of ultra-small...

MIT study finds that ghrelin, produced during stressful situations, primes the brain for post-traumatic stress disorder. Fuente : http://www.eurekalert.org/pub_releases/2013-10/mio...

Prolactin has an important function in the liver, but how important? Researchers, using an animal model, found the animals with extra prolactin had larger livers, regenerated their livers faster after partial removal, and were significantly more likely to survive liver surgery compared to animals that couldn't process...

New research from Clinical Psychological Science illuminates definitive brain alterations in troops with Gulf War Illness thought to result from the exposure to neurotoxic chemicals, including sarin gas, during the first Persian Gulf War. Fuente : http://www.eurekalert.org/pub_releases/2013-10/afp...

A team of engineers and doctors has developed a new wireless capsule that can give surgeons back their sense of touch when performing minimally invasive surgery. Fuente : http://www.eurekalert.org/pub_releases/2013-10/vu-...

Many primary care doctors continue to administer the prostate-specific antigen test to even their oldest patients despite the fact that no medical organization recommends prostate cancer screening for men older than 75, according to new research from the University of Texas Medical Branch at Galveston.In a research letter...

Columbia University scientists found evidence that magnetic waves in a polar coronal hole contain enough energy to heat the corona and moreover that they also deposit most of their energy at sufficiently low heights for the heat to spread throughout the corona. The observations help to answer a 70-year-old solar physics...

The Population Council presented findings from a pivotal Phase 3 clinical trial that was designed to demonstrate the safety, efficacy, and acceptability of the Council's investigational one-year contraceptive vaginal ring. Fuente : http://www.eurekalert.org/pub_releases/2013-10/pc-...

Scientists from the University of Sheffield have discovered ground breaking clues as to how the pioneering heart drug ticagrelor might reduce the risk of dying following a heart attack, in comparison to previous standard treatments. Fuente : http://www.eurekalert.org/pub_releases/2013-10/uos...

Scientists studying the behavior of platinum particles immersed in hydrogen peroxide may have discovered a new way to propel microscopic machines. The new mechanism is described in The Journal of Chemical Physics, which is produced by AIP Publishing. Fuente : http://www.eurekalert.org/pub_releases/2013-10/aio...

An optical imaging technique that measures metabolic activity in cancer cells can accurately differentiate breast cancer subtypes, and it can detect responses to treatment as early as two days after therapy administration, according to a study published in Cancer Research, a journal of the American...

Researchers in Norway found that negative affectivity is linked to light alcohol use and binge drinking during pregnancy. Results published in Acta Obstetricia et Gynecologica Scandinavica, a journal of the Nordic Federation of Societies of Obstetrics and Gynecology, show 16% of women had light...

A new randomized controlled trial conducted by Baylor College of Medicine researchers and published today as an article in press in the American Journal of Medicine finds that overweight and obese adults following a community-based weight loss intervention, namely Weight Watchers, lost...

Casi cuatro meses después de la elección del presidente de Irán, Hasán Ruhaní, este martes 15 se reanudarán en Ginebra las conversaciones sobre el controvertido programa nuclear de ese país. Las negociaciones entre Irán y el P5+1 (Estados Unidos, Gran Bretaña, Francia, China y Rusia más Alemania)...

Humans rarely walk the straight and narrow; something's always in the way. So scientists are developing a computer-controlled artificial limb that can turn like a flesh-and-blood foot. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/k...

Researchers studying young bonobos in an African sanctuary have discovered striking similarities between the emotional development of the bonobos and that of children, suggesting these great apes regulate their emotions in a human-like way. This is important to human evolutionary history because it...

New research is laying the groundwork for touch-sensitive prosthetic limbs that one day could convey real-time sensory information to amputees via a direct interface with the brain. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/B...

Faced with news of suicides and brain damage in former professional football players, geneticists have bemoaned the lack of model systems for studying the insidious and often delayed consequences linked to head injuries. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/s...

Neurons that process sensory information are arranged in precise, well-characterized maps that are crucial for translating perception into understanding. A study reveals that the actual act of birth in mice causes a reduction in a brain chemical called serotonin in the newborn mice, triggering...

New research on the reproductive habits of zebrafish offers an explanation as to why some animals' bodies repair tissues. The research team previously noticed that male zebrafish regenerate their pectoral fins poorly, as compared to females. Their latest findings reveal the basis for this...