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168,521 articles from ScienceDaily

Atlantic And East Pacific Ocean Hurricane Seasons Begin For 2009

Summer soon begins in the Northern Hemisphere and, on June 1st, the Atlantic hurricane season kicks off. What do Atlantic and Pacific Ocean surface temperatures and heights tell forecasters about what they can expect this season? Although peak hurricane time doesn't arrive until late-summer and early fall, there are some oceanic signals that give a hint of coming activity and NASA satellites are...

Bioenergy Makes Heavy Demands On Scarce Water Supplies

The ‘water footprint’ of bioenergy, i.e. the amount of water required to cultivate crops for biomass, is much greater than for other forms of energy. The generation of bioelectricity is significantly more water-efficient in the end, however – by a factor of two – than the production of biofuel. By establishing the water footprint for thirteen crops, researchers were able to make an...

Black-tailed Godwits En Route To Africa With Hypermodern Satellite Transmitters

Since last week, 15 black-tailed godwits in Fryslân (in the north of Netherland) have been flying around with tiny transmitters in their abdominal cavities. The transmitters were inserted during a minor operation by the American vet Daniel Mulcahy and his Dutch colleague David Tijssen. With the help of the transmitters, researchers will be able to track the birds for about a year in their...

Cantabrian Cornice in Spain Has Experienced Seven Cooling And Warming Phases Over Past 41,000 Years

The examination of the fossil remains of rodents and insectivores from deposits in the cave of El Mirón, Cantabria, has made it possible to determine the climatic conditions of this region between the late Pleistocene and the present day. In total, researchers have pinpointed seven periods of climatic change, with glacial cold dominating during some of them, and heat in...

Obesity Does Not Worsen Asthma, But May Reduce Response To Medications

Obesity has been linked to whole host of conditions, ranging from heart disease to diabetes and cancer. Previous research has suggested that being overweight or obese also raises your risk of developing asthma. New research however, indicates that being overweight or obese does not make your asthma worse. This suggests that losing weight will not improve a patient's...

Washing Hands Properly Helps Stop Spread of Contagious Diseases

We all know that coughs and sneezes spread diseases – and that we should wash our hands to prevent passing on nasty viruses and bacteria. But how many of us just flick our hands under a dribbling tap and think that will do? Now hopeless hand washers will be caught – not red-handed - but with glowing green fingers, by a new good hand washing...

World First: Chinese Scientists Create Pluripotent Stem Cells From Pigs

Scientists have managed to induce cells from pigs to transform into pluripotent stem cells -- cells that, like embryonic stem cells, are capable of developing into any type of cell in the body. It is the first time that this has been achieved using somatic cells (cells that are not sperm or egg cells) from any animal with hooves (known as...

Most Efficient Spectrograph To Shoot The Southern Skies

ESO's Very Large Telescope has been equipped with the first of its second generation instruments: X-shooter. It can record the entire spectrum of a celestial object in one shot -- from the ultraviolet to the near-infrared -- with high sensitivity. This unique new instrument will be particularly useful for the study of distant exploding objects called gamma-ray...