Un nuevo hallazgo biomédico abre la puerta al desarrollo de un programa informático que determina la gravedad y orienta el tratamiento del carcinoma renal de célula clara, el más agresivo y frecuente. La supervivencia de los pacientes clasificados en el mismo grupo de riesgo puede variar de 17 a...

Un equipo de astrónomos europeos ha descubierto un nuevo cometa: una diminuta mota de luz en órbita al Sol, sumida en las profundidades del Sistema Solar. Fuente : http://www.esa.int/ESA_in_your_country/Spain/Un_bu...

Un equipo internacional de científicos destaca en un estudio la desatención que sufre el Sahara en la conservación de su biodiversidad. Como consecuencia han desaparecido algunas especies emblemáticas  –como el orix de cuernos de cimitarra– y otras están al borde de la extinción  –el...

New research shows that well-child doctor appointments for annual exams and vaccinations are associated with an increased risk of flu-like illnesses in children and family members within two weeks of the visit. This risk translates to more than 700,000 potentially avoidable illnesses each year,...

The promise of personalized medicine is the ability to tailor therapy to the patient's genome and their cancer's genome using a series of tests, but the system guiding the development of those tests is complex, and plagued with challenges. Fuente :...

Improper handling of intravenous saline at a West Virginia outpatient oncology clinic was linked with the first reported outbreak of Tsukamurella spp., gram-positive bacteria that rarely cause disease in humans, in a new report from the Centers for Disease Control and Prevention. The report was...

Journalists and psychologists are quick to describe someone as being a porn "addict," yet there's no strong scientific research that shows such addictions actually exists.So says David Ley, Ph.D., a clinical psychologist in practice in Albuquerque, N.M., and Executive Director of New Mexico...

Using images from NASA's Voyager Mission (1979) and the orbital Galileo Mission (1995), researchers have created the first global geological map of Jupiter's largest moon, Ganymede. Fuente : http://www.eurekalert.org/pub_releases/2014-02/bu-...

A new study by the University of Pennsylvania's Douglas Jerolmack, working with mathematicians at Budapest University of Technology and Economics, have found that rocks follow a distinct pattern as they become rounder, and then smaller, as they travel down riverbeds. Fuente :...

Being critical, angry and defensive isn't always a bad thing for couples having a big disagreement -- provided they are in a satisfying relationship. In that case, they likely will have a "big resolution" regardless of how negative they were during the discussion, according to a study by a Baylor...

Communal irrigation systems known as acequias that have sustained farming villages in the arid southwestern United States for centuries are struggling because of dwindling snowmelt runoff and social and economic factors that favor modernism over tradition, a Dartmouth College study finds. Fuente :...

Researchers have found the first direct evidence of a link between prenatal vitamin A deficiency and postnatal airway hyperresponsiveness, a hallmark of asthma. The study, conducted in mice, shows that short-term deficit of this essential vitamin while the lung is forming can cause profound changes...

A new NASA video of NOAA's GOES satellite imagery shows three days of movement of the massive winter storm that stretches from the southern US to the northeast. Fuente : http://www.eurekalert.org/pub_releases/2014-02/nsf...

Una década después del repliegue de la marina de Estados Unidos, la isla puertorriqueña de Vieques afronta nuevos desafíos, como el renacimiento de su sector agrícola amenazado por un legado de residuos militares tóxicos de inciertas consecuencias. Entre 1999 y 2003, Vieques, con apenas el doble de...

Si el presidente de Estados Unidos, Barack Obama, quisiera ser más expedito y reanudar las relaciones con Cuba, cuenta con espacio político para hacerlo, según el análisis de un sondeo de opinión publicado en Washington este martes 11. La encuesta, realizada en enero, arroja un apoyo de 56 por...

A technological breakthrough is on the horizon: a new kind of smart phone that sends scents. Scientists have created the oPhone, which will allow odors -- oNotes -- to be sent, via Bluetooth and smartphone attachments, to oPhones across the state, country or ocean, where the recipient can enjoy...

El acuerdo de paz que firmaron el gobierno y el grupo rebelde y separatista más grande de Filipinas, el Frente Moro de Liberación Islámica (FMLI), tras dos años de intensas negociaciones, abre el camino para resolver una de las guerras internas más largas del mundo. El acuerdo del 25 de enero...

Biologists have shown in rats that chronic stress makes stem cells in the brain produce more myelin-producing cells and fewer neurons, possibly affecting the speed of connections between cells as well as memory and learning. This could explain why stress leads to mental illness, such as PTSD,...

En la comarca Lagunera, una de las zonas productoras de leche de vaca más importantes del país, se ha encontrado otro nicho de oportunidad para el mercado de lácteos, solo que esta vez el insumo proviene de otra especie: la cabra. Apoyado por el Consejo Nacional de Ciencia y Tecnología (Conacyt) y...

Scientists are looking for biochemical clues in the blood that signal severe psychiatric disorders. But there is still a long way to go to find definite validated biomarkers. Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

Juggling may seem like mere entertainment, but a study led by engineers used this circus skill to gather critical clues about how vision and the sense of touch help control the way humans and animals move their limbs in a repetitive way, such as in running. The findings eventually may aid in the...

As the Great Recession deepened and income inequality became more pronounced, county-by-county rates of child maltreatment -- from sexual, physical and emotional abuse to traumatic brain injuries and death -- worsened, according to a nationwide study. Fuente :...

Researchers have demonstrated a new approach to treating muscular dystrophy. Mice with a form of this muscle-weakening disease showed improved strength and heart function when treated with nanoparticles loaded with rapamycin, an immunosuppressive drug recently found to improve recycling of cellular...

Un grupo de organizaciones internacionales que combaten el tráfico ilícito de biodiversidad inauguró un sitio web que busca facilitar denuncias de delitos contra la naturaleza. WildLeaks es el primer portal en Internet donde, según explicaron sus creadores, individuos o grupos pueden revelar de modo seguro y anónimo información...

Signals bounced off reflectors on the lunar surface return surprisingly faint echoes on full moon nights. Scientists think it's the result of uneven heating of the reflective lenses, which would alter their refractive index, dispersing the return beam, and they found compelling evidence for this...

Being overweight appears related to reduced levels of a molecule that reflects brain cell health in the hippocampus, a part of the brain involved in memory, learning, and emotions, and likely also involved in appetite control, according to a new study. Fuente :...

New technologies are changing the way we collect biodiversity data, providing low-cost and customizable alternative to expensive proprietary data loggers and sensors. A new article describes the construction of a data-logger using the Arduino platform in the hope of encouraging the adoption of new...

The development of wind farms in Europe only has an extremely limited impact on the climate at the continental scale, and this will remain true until at least 2020. These are the main conclusions of a new study. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/X...

The development of wind farms in Europe only has an extremely limited impact on the climate at the continental scale, and this will remain true until at least 2020. These are the main conclusions of a study carried out by researchers from CNRS, CEA and UVSQ[1], in collaboration with INERIS and...