Foros, blogs, redes sociales, mundos virtuales y otras herramientas de internet facilitan conocer a un montón de gente nueva con los mismos gustos, intereses y afinidades, y forjar amistades incluso antes de reunirse en persona por vez primera. No han pasado muchos años desde el nacimiento de......

Se ha conseguido aislar una población, hasta ahora desconocida, de células madre pluripotentes humanas. Éstas son primitivas y resistentes al estrés ambiental, y se las puede obtener con facilidad a partir de tejido graso, siendo capaces de diferenciarse en virtualmente cualquier tipo de célula......

En el pasado, las selvas tropicales de América del Sur prosperaron durante tres eventos de calentamiento global extremos, según paleontólogos del Smithsonian en Panamá. Ningún bosque tropical de América del Sur experimenta actualmente temperaturas anuales promedio de más de 84 grados Fahrenheit......

El estudio del cerebro en estado de reposo supone una nueva metodología de exploración que está revelando interesantes datos sobre cómo funciona cuando está activo. Un novedoso estudio a nivel neurocognitivo desarrollado por investigadores del Laboratorio de Neuroimagen Funcional de la... Fuente :...

Tres grupos de científicos españoles pertenecientes a la Red de Investigación Cardiovascular (RIC) del Instituto de Salud Carlos III, participan en el estudio que ha permitido identificar una mutación genética que reduce el riesgo de padecer tromboembolismo venoso (TEV), una grave y frecuente......

A team of US and UK scientists has found geologic evidence that casts doubt on one of the conventional explanations for how Antarctica's ice sheet began forming. Ian Dalziel of the University of Texas at Austin and his colleagues report finding an ancient volcanic arc in the Scotia Sea that might have prevented the Antarctic...

Using the same type of mathematical formulas used to draw political redistricting maps, Johns Hopkins researchers say they have developed a model that would allow for the more equitable allocation of livers from deceased donors for transplantation. Fuente :...

Simon Fraser University biologists have discovered a new, extinct family of insects that will help scientists better understand how some animals responded to global climate change and the evolution of communities. Fuente : http://www.eurekalert.org/pub_releases/2013-07/sfu...

More support is needed to help women overcome doubts in the hope that they will breastfeed their babies for longer, says a University of Alberta nutrition researcher. Fuente : http://www.eurekalert.org/pub_releases/2013-07/uoa...

A recently discovered form of the protein that triggers blood clotting plays a critical role in promoting the growth of metastatic pancreatic cancer and primary breast cancer, according to the cumulative findings from two new scientific manuscripts published online ahead of print in the...

The first expedition to use a deep-diving submersible to study the Atlantic Ocean lionfish invasion found something very disturbing -- at 300 feet deep, there were still significant populations of these predatory fish, and they were big. Big fish can reproduce much more efficiently than their...

"Ocean predator" conjures up images of sharks and barracudas, but the voracious red lionfish is out-eating them all in the Caribbean -- and Mother Nature appears unable to control its impact on local reef fish. That leaves human intervention as the most promising solution to the problem of this...

This week a European Earth-observing satellite confirmed that a large iceberg broke off of Pine Island Glacier, one of Antarctica's largest and fastest moving ice streams. The rift grew and formed a 280-square-mile ice island. Fuente : http://www.eurekalert.org/pub_releases/2013-07/nsf...

When a hurricane or typhoon's eye becomes filled with clouds, it can be a sign the storm is weakening, or that high clouds have moved over it, or its eyewall is being replaced. When NASA's Aqua satellite passed over Typhoon Soulik on July 11 an instrument aboard noticed clouds filled the eye and...

Tropical Storm Chantal moved over Hispaniola on July 10 when NASA's Terra satellite passed overhead from space, and less than 24 hours later the storm weakened to a remnant low pressure area. Fuente : http://www.eurekalert.org/pub_releases/2013-07/nsf...

Entrega del podcast Ulises y la Ciencia, con guión de Ángel Rodríguez Lozano, en Ciencia para Escuchar, que recomendamos por su interés. Los virus son unos pequeños entes microscópicos sobre los cuales no nos ponemos de acuerdo si son seres vivos o no.  A pesar de su pequeñez y su aparente... Fuente :...

A new scientific study answers a long-standing question in palaeontology -- how numerous species of large, plant-eating dinosaurs could co-exist successfully over geological time. Results from the largest study of dinosaurs recovered from Alberta's Dinosaur Park Formation suggest that niche...

Un estudio registra y describe por primera vez esta peculiar técnica de caza desarrollada por los tiburones azotadores, que pueden tumbar con su cola a siete sardinas a la vez ||| Fuente : http://feedproxy.google.com/~r/materia/noticias/~3...

A new study of HIV infection points to changes in intestinal bacteria as a possible explanation for why successfully treated HIV patients nonetheless prematurely experience life-shortening chronic diseases. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/m...

Researchers have shown that deficiencies in vitamin D -- the sunshine vitamin -- accelerates the aging of bone, reducing the quality and making it more susceptible to fracturing. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/T...

Kangaroo Care delivers benefits beyond bonding and breastfeeding for a hospital's tiniest newborns. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/I...

Chemists are making the process of synthesizing quantum dots much more systematic. They are detailing an effective new method for purifying CdSe nanocrystals with well-defined surface properties. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/O...

U.S. intelligence agents may be more prone to irrational inconsistencies in decision making compared to college students and post-college adults, according to a new study. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/K...

Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

One of the most frequently-used physics laboratories on the International Space Station recently completed its final set of experiments. The Plasma Kristall Experiment (PK-3 Plus) lab, a Russian-German cooperation in operation since January 2006, has provided new insight into an unusual type of...

Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

Today's smartphones allow for increased opportunities for activities traditionally defined as sedentary behaviors, such as surfing the internet, emailing and playing video games. However, researchers have linked high cell phone use to poor fitness in college students. Fuente :...

Chemists have performed a DNA-based logic-gate operation within a human cell. The research may pave the way to more complicated computations in live cells, as well as new methods of disease detection and treatment. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/y...