Unos algoritmos diseñados por ordenador para lidiar con la congestión de internet han producido velocidades de transmisión de datos dos o tres veces más altas que las obtenidas mediante algoritmos diseñados por humanos.El TCP, el protocolo de control de transmisión, es uno de los protocolos... Fuente :...

Un nuevo modo de analizar globalmente el cáncer, rastrear sus raíces evolutivas profundas hasta la aparición de la multicelularidad en el planeta hace más de mil millones de años, ha sido propuesto por Paul Davies de la Universidad Estatal de Arizona, en colaboración con Charles Lineweaver de la... Fuente :...

Los principios que gobiernan rasgos de la arquitectura de las plantas, como el número de ramas, son bien conocidos, pero a los científicos siempre les ha intrigado cómo exactamente las plantas establecen y mantienen el ángulo de sus ramas laterales con respecto a la dirección de la fuerza de... Fuente :...

Convertir una ventana de cristal, una pizarra tradicional e incluso el tablero de madera de una mesa, en superficies relativamente sensibles al tacto y que funcionen como pantallas táctiles es cada vez más habitual, y el costo de los sistemas que permiten hacer esas adaptaciones sigue... Fuente :...

Irse a la cama sin seguir un horario fijo, refrena la capacidad cerebral de los niños y puede perjudicar la salud en la vida adulta, según sugieren las conclusiones de una nueva investigación.Un grupo de especialistas del University College de Londres observó en más de 11.000 niños pequeños si la... Fuente :...

Gracias al telescopio espacial XMM-Newton, de la ESA, un equipo de científicos ha descubierto que una curiosa estrella muerta presenta uno de los campos magnéticos más intensos del universo, a pesar de que todos los indicios parecían indicar que su magnetismo era inusualmente débil.Este objeto,......

El fósil de una nueva especie de mamífero, denominado Rugosodon eurasiaticus, que tendría el aspecto de una pequeña rata o una ardilla, representa según los expertos el antepasado más antiguo del grupo de los multituberculados, que vivieron en la Tierra hace 100 millones de años antes de que los......

Episodio del podcast Cierta Ciencia, realizado desde Nueva York por la genetista Josefina Cano, en Ciencia para Escuchar, que recomendamos por su interés. En una de esas tardes calientes en Juazeiro, un pueblo pequeño de Bahía de San Salvador en Brasil, un grupo de investigadores liberó por......

Older heart patients present unique challenges for determining the optimal dosages of medications, so a new study from researchers at Duke Medicine offers some rare clarity about the use of drugs that are used to treat patients with heart attacks. Fuente :...

The advent of antiretroviral therapy (ART) has transformed HIV from a death sentence into a chronic disease. In one of the largest studies of perinatally infected HIV patients to date, Agwu, et al, found that the proportion of patients on ART has increased and rates of viremia and advanced...

hildren with autism and average IQs consistently demonstrated superior math skills compared with nonautistic children in the same IQ range, according to a study by researchers at the Stanford University School of Medicine and Lucile Packard Children's Hospital. Fuente : http://www.eurekalert.org/pub_releases/2013-08/sum...

In a study of gray tree frogs, a team of University of Minnesota researchers discovered that females prefer males whose calls reflect the ability to multitask effectively. Fuente : http://www.eurekalert.org/pub_releases/2013-08/uom...

MIT chemical engineers have discovered that arrays of billions of nanoscale sensors have unique properties that could help pharmaceutical companies produce drugs -- especially those based on antibodies -- more safely and efficiently. Fuente : http://www.eurekalert.org/pub_releases/2013-08/mio...

DNA damage is a natural biological occurrence that happens every time cells divide and multiply; thus, DNA repair is important for preserving the composition of the genome. Michael Feig at Michigan State University uses supercomputing to study the molecular-level dynamics involved in this process....

NASA's Aqua satellite passed over two developing low pressure areas in the Central Pacific Ocean, just before one of them strengthened into Tropical Storm Pewa. Fuente : http://www.eurekalert.org/pub_releases/2013-08/nsf...

Tropical Storm Erin ran into cooler waters and dry, stable air over the Eastern Atlantic that sapped its strength and weakening the storm to depression status. NOAA's GOES-East satellite showed the storm waning today. Fuente : http://www.eurekalert.org/pub_releases/2013-08/nsf...

UC San Francisco scientists working in the lab used a chemical found in an anti-wrinkle cream to prevent the death of nerve cells damaged by mutations that cause an inherited form of Parkinson's disease. A similar approach might ward off cell death in the brains of people afflicted with Parkinson's disease. Fuente :...

New Geology postings discuss a vanished link between Antarctica and Australia; the West Salton Detachment fault in California, USA; chemical interaction between peridotite and intruding melts in the Northern Apennines, Italy; calving barchan dunes; the nature of black shale in the Late Devonian Appalachian Basin; the Aug. 2008...

New research shows that a Mediterranean-style diet and diets low in available carbohydrates can offer protection against type 2 diabetes. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/E...

Obesity is a lot more deadly than previously thought. Across recent decades, obesity accounted for 18 percent of deaths among Black and White Americans between the ages of 40 and 85, according to a new study. This finding challenges the prevailing wisdom among scientists, which puts that portion at around 5 percent. Fuente :...

Hypnotic relaxation therapy improves sexual health in women who have hot flashes, according new research. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/X...

If young people are drowning in debt, their blood pressure may be on the rise and their health could suffer. A new study has found that high financial debt is associated with higher diastolic blood pressure and poorer self-reported general and mental health in young adults. Fuente :...

Celery, artichokes, and herbs, especially Mexican oregano, all contain apigenin and luteolin, flavonoids that kill human pancreatic cancer cells in the lab by inhibiting an important enzyme, according to two new studies. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/j...

Man, a mouse or a microbe, stress is bad. Experiments in bacteria by molecular biologists have uncovered the mechanism that translates stress, such as exposure to extreme temperature, into temporarily blocked cell growth. Bacteria deal with stress by destroying proteins needed for replication. Fuente :...

The essence of male beauty is down to the way males use their genes rather than what genes they have, according to a new study into the sexual attractiveness of turkeys. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/j...

Researchers have developed a mathematical model to help answer critical questions and guide the response to an anthrax exposure. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/4...

Findings from a large-scale ice drilling study on the Greenland ice sheet may revise the models used to predict how ice sheets move. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/N...

DNA binding proteins called transcription factors are required for maintaining cell identity. They ensure that daughter cells have the same function as their mother cell. However, each time a cell divides the specific binding pattern of the transcription factors is erased and has to be restored in both mother and daughter...

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