En los últimos años, se han usado compuestos avanzados de fibra de carbono para aligerar el peso de los aviones. Estos materiales pueden igualar al aluminio y al titanio en fortaleza, pero con una fracción del peso de estos, y están presentes en aviones como el Boeing 787 y el Airbus A380,......

¿Se ha olvidado de apagar las luces antes de salir de su vivienda? No hay problema. Levante una mano, haga en el aire el gesto de accionar un interruptor, y las luces se apagarán. ¿Quiere cambiar la canción que toca el reproductor de música en otra habitación? Mueva una mano hacia la derecha y......

La colosal bola de hierro ubicada en el centro de la Tierra no es tan sólida como se pensaba, según las conclusiones a las que se ha llegado en una nueva investigación.Las autoras de este estudio, de la Universidad de Stanford en California, usaron una celda de yunque de diamante (un dispositivo......

En una región oscura y sin estrellas del espacio intergaláctico, los astrónomos han descubierto un cúmulo nunca antes visto de nubes de hidrógeno entre dos galaxias cercanas a la nuestra, la de Andrómeda (M31) y la de El Triángulo (M33). Los investigadores barajan la hipótesis de que estas......

Incluso en pequeñas concentraciones, la presencia de nitratos en agua de pozo representa un riesgo para la salud pública, en particular para bebés y niños. Investigadores de Argentina, Chile y Brasil trabajan de manera conjunta en el desarrollo de técnicas alternativas que permitan hacer segura......

Los agujeros negros aún guardan secretos que sólo puede revelarse con "lupas" tan gigantes como el interferómetro del Very Large Telescope (VLT), que opera el Observatorio Europeo del Sur (ESO, en su acrónimo inglés) en el cerro de Paranal (Chile). Este aparato ha permitido la observación más......

La prestigiosa revista estadounidense Journal Archaeological Science ha publicado un estudio que prueba que las primeras fases del arte paleolítico de la cueva de Altamira (Santillana del Mar, Cantabria, España) fueron realizadas por los primeros grupos de Homo sapiens que poblaron Europa.El......

Produciéndose cerca de 10.000 alteraciones diarias en el genoma de cada célula, el trabajo que hacen proteínas reparadoras del ADN como las que estudia en su laboratorio del Centro Nacional de Biotecnología del CSIC el grupo dirigido por el biofísico Fernando Moreno-Herrero es tremendamente...

A cardiac hormone signaling receptor abundantly expressed both in inflamed tissues and cancers appears to recruit stem cells that form the blood vessels needed to feed tumor growth, reports a new study by scientists at the University of South Florida Nanomedicine Research Center. Fuente :...

To prevent coral reefs around the world from dying off, deep cuts in carbon dioxide emissions are required, says a new study from Carnegie's Katharine Ricke and Ken Caldeira. They find that all existing coral reefs will be engulfed in inhospitable ocean chemistry conditions by the end of the...

West Nile virus, Lyme disease and hantavirus. All are infectious diseases spreading in animals and in people. Is human interaction with the environment somehow responsible for the increase in these diseases? Fuente : http://www.eurekalert.org/pub_releases/2013-06/nsf...

A technique developed several years ago at NIST for improving optical microscopes now has been applied to monitoring the next generation of computer chip circuit components, potentially providing the semiconductor industry with a crucial tool for improving chips for the next decade or more. Fuente...

A team of scientists at USC has verified that quantum effects are indeed at play in the first commercial quantum optimization processor. Fuente : http://www.eurekalert.org/pub_releases/2013-06/uos...

A young, healthy man injured himself so severely while weight lifting that he required surgery and nearly a full week in the hospital to recover. The unusual case report of compartment syndrome to the shoulder will be reported online today in Annals of Emergency Medicine ("An Unusual Complication...

Investigators at Disney Research, Pittsburgh, have developed an automated technique for analyzing the patterns of play of field hockey teams, providing a new tool for coaches and commentators who must make sense of mountains of video and other game data. Fuente :...

Elderly cardiac patients prescribed heart medications for 60 days or more after leaving hospital have four times the odds of adhering to the drug regime than patients prescribed the same medications for 30 days, according to research conducted at the Institute for Clinical Evaluative Sciences and Women's College Hospital....

Divorce has a bigger impact on child-parent relationships if it occurs in the first few years of the child's life, according to new research. Those who experience parental divorce early in their childhood tend to have more insecure relationships with their parents as adults than those who experience divorce later, researchers...

Synthetic biology researchers at Northwestern University and Harvard Medical School have for the first time synthesized ribosomes from scratch in a test tube. The researchers took an approach different from their predecessors: they mimicked the natural synthesis of a ribosome, allowing natural enzymes of a cell to help...

Episodio del podcast Cierta Ciencia, realizado desde Nueva York por la genetista Josefina Cano, en Ciencia para Escuchar, que recomendamos por su interés. La mosca de la fruta, Drosophila melanogaster, esa que ronda los plátanos y que puede ser tan molesta, es noticia por su afición al... Fuente :...

Researchers have discovered that forced elongation of telomeres (extensions on the end of chromosomes) promotes the differentiation of cancer cells, probably reducing malignancy, which is strongly associated with a loss of cell differentiation. Fuente :...

Non-invasive brain stimulation may help stroke survivors recover language function. Survivors treated with the technique regained more language function than those who did not get treatment. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/Q...

Gemini Observatory's Planet-Finding Campaign finds that, around many types of stars, distant gas-giant planets are rare and prefer to cling close to their parent stars. The impact on theories of planetary formation could be significant. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/K...

Recurrence of melanoma skin cancer 10 or more years after initial treatment is more common than previously thought, occurring in more than one in 20 patients. However, according to a new study, these patients tend to live longer after their cancer returns than patients whose melanoma recurs in the...

Ocean experts had predicted a large “dead zone” area in the Gulf of Mexico this year, and according to the results from a researcher just back from studying the region, those predictions appear to be right on target. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/m...

Higher levels of omega-3 fatty acids in the blood may reduce the risk for hip fractures in postmenopausal women, recent research suggests. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/G...

A new report has found that people absorb less radiation from airport X-ray backscatter scanner than they do while standing in line waiting for the scan itself. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/s...

ADHD drug helps improve brain functional connectivity in cocaine addiction, according to a new study. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/q...

Understanding how the protein km23-1 enables in the spread of colon cancer may lead to new treatments for the disease, according to researchers. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/X...

In what researchers say is the first public health study of the aerial mosquito spraying method to prevent West Nile virus, a new study analyzed emergency department records from Sacramento area hospitals during and immediately after aerial sprayings in the summer of 2005. Fuente :...