Two biologists at Washington University in St. Louis were delighted to discover a meticulous dataset on a plant-pollinator network recorded by Illinois naturalist Charles Robertson between 1884 and 1916. Re-collecting part of Robertson's network, they learned that although the network has...
Researchers have found that bees and plants have been surprisingly resilient in the face of warmer temperatures and changing land use. The forests that once grew 10 miles outside of Carlinville are fragments of what they were when Robertson, who collected specimens in the late 1800s, drove his...
NASA's Van Allen Probes mission has discovered a previously unknown third radiation belt around Earth, revealing the existence of unexpected structures and processes within these hazardous regions of space. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/6...
Las sondas Van Allen descubren un tercer anillo de radiación en torno a la Tierra desconocido hasta ahora. Estos anillos son una amenaza para astronautas y satélites y producen las auroras boreales ||| Fuente : http://esmateria.com/2013/02/28/un-cinturon-descon...
Un informe destaca el liderazgo español en la lucha contra la malaria hasta 2010. España puso 177 millones de euros contra esta enfermedad en un Fondo Global al que no ha añadido un euro desde entonces ||| Fuente : http://esmateria.com/2013/02/28/espana-evito-100-0...
New insight into grape seed extract as a therapeutic and preventative measure to fight obesity-induced kidney damage is presented in a new study. Grape seed and skin extract (GSSE) is known to contain powerful antioxidants. This study is the first to make a link between GSSEs and...
New research has identified the neural pathways in an insect brain tied to eating for pleasure, a discovery that sheds light on mirror impulsive eating pathways in the human brain. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/w...
Previous studies have shown that carnivores can have indirect positive effects on each other, which means that when one species is lost, others could soon follow. Biologists have now found that reducing the numbers of one species of carnivore can lead to the extinction of others. Fuente :...
Agriculture is responsible for around 10 to 12 percent of all greenhouse gases attributable to human activities. This raises the question of how these emissions could be reduced. A recent study has investigated -- for the first time -- the full range of factors that contribute to greenhouse gas...
Las sociedades científicas piden al presidente del Gobierno que marque con nitidez su compromiso con la política de I+D+i y que garantice su cumplimiento ||| Fuente : http://esmateria.com/2013/02/28/los-cientificos-ad...
Hasta un tercio de los 20.000 operarios que pasaron por la central nuclear tienen más posibilidades de lo normal de sufrir un cáncer por la radiactividad recibida, según un informe presentado hoy por Organización Mundial de la Salud. El resto de la población no presenta graves amenazas ||| Fuente :...
Ya tiene ganador la primera edición del premio SysNova de la ESA, un concurso que busca soluciones de diseño para misiones espaciales. No se trata de los Óscar ni hubo famosos de Hollywood, pero SysNova ... Fuente : http://www.esa.int/ESA_in_your_country/Spain/Ganad...
Los observatorios espaciales XMM-Newton de la ESA y NuSTAR de la NASA han hallado, en el corazón de una galaxia espiral, un agujero negro supermasivo girando casi a la velocidad de la luz, ofreciendo nueva información sobre cómo crecen las ga... Fuente :...
A study by a Simon Fraser University researcher shows British Columbia has much higher traffic death rates than most northern European countries. Comparisons to the safest country, the Netherlands, suggest B.C. could reduce the number of traffic deaths by more than 200 per year. It also found that...
Mineral evolution is a new way to look at our planet's history. It's the study of the increasing diversity and characteristics of Earth's near-surface minerals, from the dozen that arrived on interstellar dust particles when the Solar System was formed to the more than 4,700 types existing today....
A study in the March 2013 issue of Epigenetics titled "A cell epigenotype specific model for the correction of brain cellular heterogeneity bias and its application to age, brain region and major depression" shows a publicly available new method to identify heterogeneous brain cells. Fuente :...
Although scientists involved in NASA's Van Allen Probes mission were confident they would eventually be able to rewrite the textbook on Earth's twin radiation belts, getting material for the new edition just two days after launch was surprising, momentous, and gratifying. Fuente :...
A new study found that adult sleepwalking is a potentially serious condition that may induce violent behaviors and affect health-related quality of life. Fuente : http://www.eurekalert.org/pub_releases/2013-02/aao...
Democratic Republic of Congo's largest remaining forest elephant population, located in the Okapi Faunal Reserve, has declined by 37 percent in the last five years, with only 1,700 elephants now remaining, according to wildlife surveys by WCS and DRC officials. Fuente :...
Researchers at the University of Florida and The Johns Hopkins University have developed a line of genetically altered mice that model the earliest stages of Alzheimer's disease. This model may help scientists identify new therapies to provide relief to patients who are beginning to experience...
A South Dakota School of Mines & Technology paleontologist and his team have discovered a new species of herbivorous dinosaur and published the first fossil evidence of prehistoric crocodyliforms feeding on small dinosaurs. Fuente : http://www.eurekalert.org/pub_releases/2013-02/sds...
The American College of Cardiology and the Heart Rhythm Society, along with key specialty societies, today released appropriate use criteria for implantable cardioverter-defibrillators and cardiac resynchronization therapy. The document provides assessed levels of appropriateness for implanting the...
A diagnostic "cocktail" containing a single drop of blood, a dribble of water, and a dose of DNA powder with gold particles could mean rapid diagnosis and treatment of the world's leading diseases in the near future. The cocktail diagnostic is a homegrown brew being developed by University of Toronto's Institute of...
A new satellite that will detect the lightning inside storm clouds may lead to valuable improvements in tornado detection. The GOES-R satellite is currently being built with new technology that may help provide earlier warnings for severe weather. Fuente : http://www.eurekalert.org/pub_releases/2013-02/nsf...
After most NASA science spacecraft launches, researchers wait patiently for months as instruments on board are turned on one at a time, slowly ramped up to full power, and tested to make sure they work at full capacity. It's a rite of passage for any new satellite in space, and such a schedule was in place for the Van Allen...
Studies screening the genome of hundreds of thousands of individuals have linked more than 100 regions in the genome to the risk of developing cardiovascular disease. Researchers from EMBL and the University of Heidelberg are taking these results one step further by pinpointing the exact genes that could have a role in the...
Nova Southeastern U. Professor Jim Thomas leads international expedition in Papua New Guinea that finds new species of sea slugs, feather stars and amphipods, a shrimp-like animal. Fuente : http://www.eurekalert.org/pub_releases/2013-02/nsu...
Entre los psiquiatras hay muchas dudas sobre la separación entre enfermedades como la esquizofrenia y el autismo. La genética puede ayudar a definir mejor estos trastornos y sus tratamientos ||| Fuente : http://esmateria.com/2013/02/28/cinco-grandes-enfe...
A hockey player's birthday strongly biases how professional teams assess his talent, according to a new study. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/a...
El poeta, recientemente galardonado con el Premio Internacional Manuel Acuña de Poesía, conversa en la siguiente entrevista sobre sus dos últimas obras