Mesoscale atmospheric modeling looking at the mass effects of kinetic energy absorption by wind turbines suggests that the power capacity of large-scale wind farms may have been significantly overestimated. The effect occurs because each wind turbine creates a "wind shadow" behind it, in which the turning blades slow the air....

Though it's most often associated with disorders like diabetes, Yun Zhang, Associate Professor of Organismic and Evolutionary Biology, has shown how the pathway of insulin and insulin-like peptides plays another critical role in the body -- helping to regulate learning and memory. Fuente :...

Babies in Brazil of African ancestry, alone or mixed, are more likely to have low birth weights and to be born prematurely than those born to parents of European-only ancestry, according to a new study from the University of Iowa. The reasons may be less use of prenatal care facilities and where non-European-only ethnic...

An infrared look at Tropical Storm 18S by NASA's Aqua satellite revealed wind shear continues to take its toll on the storm and keeps pushing its main precipitation away from the center of the storm. Fuente : http://www.eurekalert.org/pub_releases/2013-02/nsf...

Cyclone Rusty has been moving very slowly over the last two days on its approach to landfall near Port Hedland in Western Australia, and NASA satellites have observed the storm's increase in power. NASA's TRMM and Aqua satellites provided rainfall, cloud height and temperature data that showed Cyclone Rusty intensified as it...

New US Department of Agriculture regulations have altered what foods schools offer for lunch, but schools cannot require students to eat specific foods. Cornell University researchers Andrew Hawks, David Just and Brian Wansink implemented an intervention using the behavioral science principle known as "libertarian...

Late last October, one of the most destructive storms ever to hit the United States bashed the beaches of Brevard County in Florida, including the shoreline of NASA's Kennedy Space Center. Scientists are assessing damage along a 1.2 mile stretch of shoreline near Launch Pads 39A and B and...

The second International Space Station Commercial Resupply Services flight by Space Exploration Technologies (SpaceX) is set for liftoff at 10:10 a.m. EST on March 1 from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida. Fuente :...

Two compact laboratories inside NASA's Mars rover Curiosity have ingested portions of the first sample of rock powder ever collected from the interior of a rock on Mars. Curiosity science team members will use the laboratories to analyze the rock powder in the coming days and weeks. Fuente :...

Results of a major study aimed at assessing the efficacy of the Mediterranean diet in the primary prevention of cardiovascular diseases show that such a diet supplemented with extra-virgin olive oil or tree nuts reduces by 30 percent the risk of suffering a cardiovascular death, a myocardial...

Researchers have found significantly higher levels of toxic metals in children with autism, compared to typical children. They hypothesize that reducing early exposure to toxic metals may help lessen symptoms of autism, though they say this hypotheses needs further examination. Fuente :...

Environmental exposure to bisphenol A (BPA), a widespread chemical found in plastics and resins, may suppress a gene vital to nerve cell function and to the development of the central nervous system, according to a new study. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/N...

Scientists have concluded that during the Late Archaic, maize (corn) was a primary component in the diet of people living in the Norte Chico region of Peru, an area of remarkable cultural florescence in 3rd millennium B.C. Up until now, the prevailing theory was that marine resources, not...

Particles from the upper atmosphere trapped in a deep pile of Antarctic snow hold clear chemical traces of global meteorological events, climate scientists from France have found. Anomalies in oxygen found in sulfate particles coincide with several episodes of the world-wide disruption of weather...

The world has suffered from severe regional weather extremes in recent years, such as the heat wave in the United States in 2011. Behind these devastating individual events there is a common physical cause, propose scientists in a new study. It suggests that human-made climate change repeatedly...

For decades scientists around the world have attempted to regenerate primary liver cells known as hepatocytes because of their numerous biomedical applications, including hepatitis research, drug metabolism and toxicity studies, as well as transplantation for cirrhosis and other chronic liver...

As of today, the Wikipedia entry for the hummingbird explains that the bird's flight generates in its wake a single trail of vortices that helps the bird hover. But after conducting experiments with hummingbirds in the lab, researchers propose that the hummingbird produces two trails of vortices --...

A recombinant Newcastle disease virus kills all kinds of prostate cancer cells, including hormone resistant cells, but leaves normal cells unscathed, according to a new article. A treatment for prostate cancer based on this virus would avoid the adverse side effects typically associated with...

Scientists have found a telltale molecular marker for Onchocerciasis or “river blindness,” a parasitic infection that affects tens of millions of people in Africa, Latin America and other tropical regions. The newly discovered biomarker, detectable in patients’ urine, is secreted by Onchocerca...

Even dying stars could host planets with life -- and if such life exists, we might be able to detect it within the next decade. This encouraging result comes from a new theoretical study of Earth-like planets orbiting white dwarf stars. Researchers found that we could detect oxygen in the...

Researchers have identified what may be a major factor behind the increased risk of two adverse outcomes in pregnancies conceived through IVF. Their findings support the hypothesis that extremely high estrogen levels at the time of embryo transfer increase the risk of infants born small for their...

New research highlights a memory strategy that may help people who suffer from depression in recalling positive day-to-day experiences. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/l...

Un gran ensayo clínico realizado en España demuestra que una dieta rica en aceite de oliva virgen tiene beneficios moderados contra el ictus y otras dolencias cardiovasculares ||| Fuente : http://esmateria.com/2013/02/25/la-dieta-mediterra...

Engineers and scientists have pioneered a new technique to analyze PCBM, a material used in polymer photovoltaic cells, obtaining details of the structure of the material which will be vital to improving the cell's efficiency. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/v...

Scientists are developing the first comprehensive model of a fully functioning fetal heart. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/E...

Four new species of Steninae were discovered during an expedition in the Liupan Shan Natural Reserve, Ningxia, China. The scientists described a total of 17 species of these intriguing beetles that live in the dead leaf mass of the territory explored, thus marking 11 new province records and a...

A new method allows direct detection of rapid fluctuations that may help to explain how high-temperature superconducting materials work. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/x...

Psychogenic diseases, formerly known as "hysterical" illnesses, can have many severe symptoms such as painful cramps or paralysis, but without any physical explanation. However, new research suggests that individuals with psychogenic disease, that is to say physical illness that stems from...

New research shows that most babies who are slow to put on weight in the first nine months of life have caught up to within the normal range by the age of 13, but remain lighter and shorter than many of their peers. There are significant differences in the pattern of "catchup," depending on the...