La Braña 1, the name used to baptize a 7,000-year-old individual from the Mesolithic Period whose remains were recovered at La Braña-Arintero site in Valdelugueros (León, Spain), had blue eyes and dark skin. These details are the result of a study conducted by Carles Lalueza-Fox, researcher from the Spanish National Research...

University researchers from two continents have engineered an efficient and environmentally friendly catalyst for the production of molecular hydrogen, a compound used extensively in modern industry to manufacture fertilizer and refine crude oil into gasoline. Fuente : http://www.eurekalert.org/pub_releases/2014-01/sso...

The tropical carbon cycle has become twice as sensitive to temperature variations over the past 50 years, new research has revealed. The research shows that a one degree rise in tropical temperature leads to around two billion extra tonnes of carbon being released per year into the atmosphere from tropical ecosystems, compared...

Cleveland Clinic researchers have discovered the process by which high-density lipoprotein -- the so-called "good cholesterol" -- becomes dysfunctional, loses its cardio-protective properties, and instead promotes inflammation and atherosclerosis, or the clogging and hardening of the arteries. Their research was published...

A simple adjustment to a powerful gene-editing tool may be able to improve its specificity. Massachusetts General Hospital investigators have found that adjusting the length of the the guide RNA component of the synthetic enzymes called CRISPR-Cas RNA-guided nucleases can substantially reduce the occurrence of off-target DNA...

In an article published today in Nature Neuroscience, neuroscientists working at the Champalimaud Neuroscience Programme and at the Salk Institute reveal that neurons in the basal ganglia can signal the concatenation of individual elements into a behavioral sequence. Fuente : http://www.eurekalert.org/pub_releases/2014-01/js-...

Researchers from Melbourne's Walter and Eliza Hall Institute have discovered that breast stem cells and their "daughters" have a much longer lifespan than previously thought, and are active in puberty and throughout life. Fuente : http://www.eurekalert.org/pub_releases/2014-01/wae...

Researchers at Cardiff University are developing a novel compound known to reverse the spread of malignant breast cancer cells. The vast majority of deaths from cancer result from its progressive spread to vital organs, known as metastasis. In breast cancer up to 12,000 patients a year develop this...

In the beginning there were single cells. Today, many millions of years later, most plants, animals, fungi, and algae are composed of multiple cells that work collaboratively as a single being. Despite the various ways these organisms achieved multicellularity, their conglomeration of cells operate cooperatively to consume...

Venturing into space might be a bold adventure, but it may not be good for your immune system. Now a study shows how growing up on the Space Shuttle weakened a key arm of the immune system in Drosophila flies. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/C...

Infants born prematurely are at elevated risk for cognitive, motor, and behavioral deficits -- the severity of which was, until recently, almost impossible to accurately predict in the neonatal period with conventional brain-imaging technology. But physicians may now be able to identify the...

Scientists have studied genetic variation in circadian clock genes in wild populations of the fruit fly, Drosophila melanogaster -- and has discovered that their genes have developed different genetic variations that are functionally important. The circadian clock is a molecular network that generates daily rhythms, and is...

An early-phase clinical trial of an experimental vaccine that targets cancer stem cells in patients with recurrent glioblastoma multiforme, the most common and aggressive malignant brain tumor, has been launched. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/g...

For the three-toed sloth, a trip to the restroom is no rest at all. It’s a long, slow descent into mortal danger from the safety of home among the upper branches of the forest. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/1...

Investigadores de la Universidad Nacional de Educación a Distancia han identificado una nueva especie de tortuga que habitaba hace 125 millones de años en la localidad de Morella (Castellón). Esta especie es la única de su grupo que se ha encontrado en Europa en esa época, y tenía costumbres nadadoras: pasaba la mayor parte del...

La violencia sacude a alguna cárcel de Brasil casi cada día. A lo largo de este mes ha ocurrido en el estado nororiental de Maranhão, donde desde un penal se ordenó sembrar el caos en las calles de su capital, lo que ilustra los alcances de la tragedia penitenciaria nacional. Incluso para una...

Chi-Huey Wong, professor of chemistry at The Scripps Research Institute, has won the 2014 Wolf Prize in Chemistry for his pioneering contributions to the synthesis of compounds vitally important to biology and medicine. Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

El Tratado de Libre Comercio de América del Norte (TLCAN) entre Estados Unidos, México y Canadá ha tenido un impacto desequilibrado entre los diferentes sectores de la economía, afirmó la profesora investigadora del Programa de Estudios Políticos e Internacionales de El Colegio de San Luis Cecilia...

Chart-topping Cantopop singer Eason Chan has been applauded for his outstanding contribution to the music industry at a graduation ceremony at London's Kingston University. He took to the stage to be named an Honorary Doctor of Arts. Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

Con pasos cautelosos y sin entrar aún en asuntos sustanciales, comenzaron en esta ciudad suiza este viernes 24 las esperadas negociacionesde paz para tratar de poner fin a la sangrienta guerra de Siria, que probablemente se prolongarán toda la siguiente semana. El representante conjunto de la...

La estadounidense Gap y la rusa Gazprom, dos gigantes del sector textil y del energético, respectivamente, fueron galardonadas en esta ciudad suiza con los temidos premios Public Eye (Ojo público) por su falta de responsabilidad ambiental y social, mientras a pocos pasos se celebraba el Foro...

Researchers have discovered that interplanetary dust particles could deliver water and organics to the Earth and other terrestrial planets. "It is a thrilling possibility that this influx of dust has acted as a continuous rainfall of little reaction vessels containing both the water and organics...

Prostate cancer is the most common form of cancer in men, yet research has been stymied by imperfect animal models of the disease. Now, scientists have developed a new method to rapidly create much better mouse models for the most lethal, terminal events of metastatic prostate cancer. This...

The same kinds of impulsive behavior that lead some people to abuse alcohol and other drugs may also be an important contributor to an unhealthy relationship with food, according to new research. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/A...

A new study offers surprising insights into dietary influences on the growing skull. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/F...

En una declaración inusual, la Corporación Financiera Internacional (CFI), entidad del Banco Mundial encargada de préstamos al sector privado, amenazó con cancelar una polémica inversión en una empresa de aceite de palma de Honduras acusada de graves violaciones de los derechos humanos, incluidos...

La abrumadora tarea de proveer asistencia a los más de 500.000 desplazados y heridos en Sudán del Sur podría facilitarse un poco con la firma en Addis Abeba de un acuerdo de cese del fuego, que entró en vigor este viernes 24. El gobierno y los grupos rebeldes, que libran combates desde hace más de...

Although infants use their memories to learn new information, few adults can remember events in their lives that happened prior to the age of three. Psychologists have now documented that age seven is when these earliest memories tend to fade into oblivion, a phenomenon known as "childhood...

By analyzing the genomes of thousands of patients' tumors, a research team has discovered many new cancer genes -- expanding the list of known genes tied to these cancers by 25 percent. The team's work, which lays a critical foundation for future cancer drug development, also shows that creating a...