El guepardo, también conocido como chita, es el animal terrestre más veloz del mundo, pero, en contra de lo que podría suponerse, su éxito al atrapar a una presa no depende solo de su formidable velocidad del orden de los cien kilómetros por hora, sino también de otra habilidad.Así lo revela un... Fuente :...

El cometa C/12 S1 ISON podría presentar una “desintegración inminente”, de acuerdo con el astrónomo de la Universidad de Antioquia Ignacio Ferrín, en Colombia, quien comparó la curva de luz de este objeto con la de otros diez cometas que en el pasado se desintegraron.La predicción sobre el... Fuente :...

Gracias a las observaciones del telescopio espacial Hubble y el gran telescopio Keck de Hawái, científicos británicos y alemanes han analizado el polvo y los escombros que rodean a la enana blanca GD61, un remanente estelar situado a 170 años luz de distancia.Los resultados, que publica esta... Fuente :...

Fuente : http://noticiasdelaciencia.com/not/8463//...

El análisis de ADN de dientes y restos óseos prehistóricos ha permitido rastrear la historia genética de la Europa moderna. Dos estudios publicados en Science describen los patrones migratorios por Centroeuropa durante el cambio hacia la agricultura entre el Neolítico y la Edad de Bronce. En...

La garganta Hebes Chasma y la cadena de cañones que la rodean, producto de las fuerzas tectónicas, son una cicatriz abierta al pasado del Planeta Rojo. Fuente : http://www.esa.int/ESA_in_your_country/Spain/Cicat...

La Sabana del Naranjal, en Trinidad y Tobago, se ubica en la falda de la Cordillera del Norte, cuyas cuencas brindan abundante agua dulce a los acuíferos que se extienden bajo estos espacios verdes. Pero la construcción de un complejo deportivo allí genera alarma entre la población. “Esta sabana...

When a natural disaster strikes and too many people take to their mobile phones at once, cellular networks easily overload. But a University of British Columbia graduate student has developed a solution to ensure that calls don't get dropped and texts make it to their destination. Fuente :...

US and German scientists have decoded a key molecular gateway for the toxin that causes botulism, pointing the way to treatments that can keep the food-borne poison out of the bloodstream. Fuente : http://www.eurekalert.org/pub_releases/2013-10/uoc...

A deficiency of the antioxidant response protein Nrf2 downregulates antioxidant activity to delay harmful cardiac remodeling. Fuente : http://www.eurekalert.org/pub_releases/2013-10/uou...

US research reveals that four out of five college student drivers have used their cell phones to send or receive text messages while driving despite the majority recognizing that the activity represents a risk. Fuente : http://www.eurekalert.org/pub_releases/2013-10/ip-...

An SF State professor found that a simple change -- turning on captions during educational videos -- dramatically improved students' test scores and comprehension. Fuente : http://www.eurekalert.org/pub_releases/2013-10/sfs...

American Chemical Society President Marinda Li Wu, Ph.D., said the budget impasse is effectively choking America's science innovation pipeline, strangling new discoveries, future economic growth and job creation. As a result of the shutdown, the National Science Foundation will issue no new grants...

Development of a vaccine against Epstein-Barr virus (EBV) has taken a step forward with the Canadian discovery of how EBV infection evades detection by the immune system. Fuente : http://www.eurekalert.org/pub_releases/2013-10/cfr...

A protein that is increased by endurance exercise has been isolated and given to non-exercising mice, in which it turned on genes that promote brain health and encourage the growth of new nerves involved in learning and memory, report scientists from Dana-Farber Cancer Institute and Harvard Medical...

New research from UC Davis shows that the tiny proportion of a cell's DNA that is located outside the cell nucleus has a disproportionately large effect on a cell's metabolism. The work, with the model plant Arabidopsis, may have implications for future treatments for inherited diseases in humans....

Behavioral therapy provided chair-side to kidney failure patients while they're undergoing dialysis may help fight depression and improve patients' quality of life, according to a study appearing in an upcoming issue of the Journal of the American Society of Nephrology. Fuente :...

En los últimos cinco años, en plena crisis económica internacional, Brasil pasó a integrar el plantel de los grandes contaminadores mundiales, cuya fuente principal de gases de efecto invernadero es la quema de combustibles fósiles. Este país sudamericano está asumiendo un perfil de contaminación...

The Second Conference on CO2 as Feedstock for Chemistry and Polymers took place in Essen, Germany on 7 – 9 October 2013. The conference discussed a new paradigm for industrial chemical production: the CO2 (carbon dioxide) economy. In this scenario CO2 is no longer seen as a waste product, with...

Harvard-led research shows nitrogen compounds carried on the wind are sufficient to disrupt pristine, protected environments Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

Una tarde de 2005 en el poblado de Ashton Hayes, en el noroccidental condado inglés de Cheshire, alguien inició una conversación en un bar sobre el cambio climático y la energía. Dos años después, vecinos del lugar redujeron 20 por ciento sus emisiones de dióxido de carbono y los costos...

* Evitan efectos secundarios como caída de cabello, vómito o destrucción de componentes sanguíneos Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

A consortium led by the University of Southampton has been awarded £7.6 million to help launch and run a project to give access to government data for academic research. Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

Cataplexy is characterized by muscle paralysis during cognitive awareness. Until now, researchers have not understood this condition well. Now research has shown that the neuro-degeneration of the brain cells that synthesize the chemical hypocretin causes the noradrenaline system to malfunction....

Indigenous hunter-gatherers and immigrant farmers lived side-by-side for more than 2,000 years in Central Europe, before the hunter-gatherer communities died out or adopted the agricultural lifestyle. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/l...

Astrophysicists have found the first evidence of a water-rich rocky planetary body outside our solar system in its shattered remains orbiting a white dwarf. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/Z...

The iron in Earth's inner core weakens dramatically before it melts, explaining the unusual properties that exist in the moon-sized solid center of our planet that have, up until now, been difficult to understand. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/l...

A research team has discovered a new genetic target for potential therapy of sickle cell disease. The target, called an enhancer, controls a molecular switch in red blood cells called BCL11A that, in turn, regulates hemoglobin production. Fuente :...

Researchers have discovered a part of the innate immune system in mice that had only been known in plants and invertebrates. This system seems more visible in stem and progenitor cells, which it protects from viral infection. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/w...