Cantidades sorprendentemente grandes de basura acaban flotando en el océano. Bolsas de plástico, envases livianos, y en general todo desecho capaz de flotar no sólo ensucia las aguas de muchas playas sino que también se acumula en áreas de mar abierto, como el sitio ocupado por la Gran Mancha de......

Es evidente que cuando uno de los miembros de una pareja dedica mucho tiempo a relacionarse con amistades y poco a hacerlo con su cónyuge, la relación de pareja puede resentirse. Si además, esas amistades con las que se relaciona el cónyuge son del sexo opuesto, el riesgo (real o aparente) de......

Las primeras conclusiones después de analizar las mediciones efectuadas durante experimentos con un avión de gran envergadura, un ejemplar modificado del viejo modelo Douglas DC-8, son alentadoras respecto a una posible alternativa "ecológica", en aviones a reacción, al uso de combustibles como......

Antiguas ánforas etruscas importadas, y una plataforma para el prensado de uvas, descubierto todo ello en el emplazamiento del antiguo puerto de Lattara en el sur de Francia, han aportado la más temprana evidencia arqueológico-biomolecular del vino y su producción en Francia, señalando los......

Una de las causas de la aparición de “superbacterias”, bacterias resistentes a múltiples antibióticos, es el abuso de fármacos como suplemento alimenticio para engordar al ganado y tratar sus enfermedades. En este caso, la resistencia se transfiere a los humanos a través de la ingesta de su......

Investigadores de la Universidad de Oviedo han marcado el azufre de la levadura de la cerveza con un método no radiactivo, de tal forma que al dársela de comer a ratas de laboratorio se pueden cuantificar los aminoácidos y las proteínas donde se va incorporando este micronutriente. La técnica puede...

Investigadores de la Universidad Miguel Hernández (UMH) de Elche (España) han desarrollado un novedoso bastón electrónico para ayudar a la movilidad de los invidentes. El nuevo sistema emite un aviso que detecta objetos que supongan un peligro para la integridad de la persona, a través de un......

El software utilizado para procesar las imágenes tomadas por los satélites desde el espacio ayuda a los médicos a establecer un método sencillo para estudiar la enfermedad de Alzheimer entre la población. Fuente : http://www.esa.int/ESA_in_your_country/Spain/Diagn...

El uso de flores como decoración en ceremonias es una costumbre extendida por todo el planeta, pero la falta de huellas dejadas por estos vegetales ha hecho difícil establecer cuando comenzó. Ahora, un equipo de investigadores internacional ha encontrado evidencia de que ya hace entre 13.700 y......

Un nuevo bastón con microcontroladores es capaz de detectar objetos que puedan suponer una amenaza para las personas ciegas, a través de un sistema de vibración colocado en la muñeca. Este sistema se adapta a las características físicas de cada persona, como su altura, y también a su entorno, según...

Artículo, del blog Bitnavegantes, que recomendamos por su interés. El núcleo del dispositivo de fusión nuclear Wendelstein 7-X ya ha completado la difícil fase de instalación con éxito. El núcleo está listo en su esqueleto básico y en 2014 podrá entrar en funcionamiento en el Greifswald,......

Feeling faint from the flu? Is your cold causing you to collapse? Your infection is the most likely cause, and, according to a new study by UC Santa Barbara research scientist Ryan Hechinger, it may be possible to know just how much energy your bugs are taking from you. His findings are published...

A discovery at the University of Wisconsin-Madison may represent a significant advance in the quest to create a "hydrogen economy" that would use this abundant element to store and transfer energy. Fuente : http://www.eurekalert.org/pub_releases/2013-07/uow...

A unique new instrument at Gemini South in Chile takes the removal of atmospheric distortions (using adaptive optics technology) to a new level. Today's release of seven ultrasharp, large-field images from the instrument's first science observations demonstrate its remarkable discovery potential....

Curry spice provides protective qualities for premature infants' lungs. Fuente : http://www.eurekalert.org/pub_releases/2013-07/lab...

Aerobic exercise can lessen -- or worsen -- the symptoms of inflammatory bowel diseases such as ulcerative colitis, depending on the circumstances under which the exercise is undertaken, researchers report. Fuente : http://www.eurekalert.org/pub_releases/2013-07/uoi...

On July 1, 2013, at 6:09 p.m. EDT, the sun erupted with a coronal mass ejection, or CME, a solar phenomenon that can send billions of tons of solar particles into space that can affect electronic systems in satellites. Experimental NASA research models based on NASA's Solar Terrestrial Relations...

Community colleges provide a strong foundation for the nation's graduating STEM (Science Technology Engineering and Mathematics) workforce. In its latest Geoscience Currents, the American Geosciences Institute documents the flow of geoscience students from two-year to four-year institutions in Texas, adding to an earlier report...

This July 4th the solar system is showing off some fireworks of its own. Superficially resembling a skyrocket, comet ISON is hurtling toward the sun presently at a whopping 48,000 mph. Its swift motion is captured in this time-lapse movie made from a sequence of pictures taken May 8, 2013, by NASA's Hubble Space Telescope....

A University of Oklahoma-developed theory provides the rationale for the next-generation particle accelerator -- the International Linear Collider. The discovery of the Higgs boson at the CERN Large Hadron Collider in Geneva Switzerland this past year prompted particle physicists to look ahead to the development of the ILC, an...

Multiple sclerosis can lead to severe cognitive impairment as the disease progresses. Researchers in Italy have found that patients with high educational levels show less impairment on a neuropsychological evaluation compared with those with low educational levels. Their results are published in Restorative Neurology and...

Arguing with your spouse about where to go on vacation or how to handle the kids? As you age, you may be more likely to handle such disagreements by changing the subject, according to new research. The study followed older couples over a 13-year period and found that as couples aged, both husbands...

Long-term hearing loss from loud explosions, such as blasts from roadside bombs, may not be as irreversible as previously thought, according to a new study. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/V...

A key brain structure that regulates emotions works differently in preschoolers with depression compared with their healthy peers, according to new research. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/A...

According to animal scientists, emerging biotechnologies can reduce the environmental impact of cattle production. Feed supplements and synthetic hormones will not affect humans, but they will increase food production. Efficient animals can produce more food for hungry people. Fuente :...

Hovering about 70 light-years from Earth –- that's "next door" by astronomical standards –– is a star astronomers call HD 97658, which is almost bright enough to see with the naked eye. But the real "star" is the planet HD 97658b, not much more than twice the Earth's diameter and a little less than...

Researchers have a possible explanation why some alcoholics develop liver disease: Disrupted circadian rhythms can push those vulnerable over the edge to disease. Mice whose internal clocks were out of sync with the light-dark cycle and mice with circadian disruption from a faulty gene were fed...

An eight-week intervention involving 141 preschoolers in a Head Start program and their parents produced significant improvements in the children's behavior and brain functions supporting attention and reduced levels of parental stress that, in turn, improved the families' quality of life. Fuente :...

Controlling both your high blood pressure and high cholesterol may cut your risk for heart disease by half or more. Fewer than one in three patients had both conditions under control, in a national data review. Minorities, older people and those with diabetes may benefit most from managing both...