Dead zones are low-oxygen areas in the ocean where higher life forms such as fish, crabs and clams are not able to live. In shallow coastal regions, for examples, dead zones can be caused by runoff of excess fertilizers from farming.
A team of Danish researchers is projecting that unchecked global warming would lead to a dramatic expansion of low-oxygen areas zones in the global ocean by a factor of 10 or more.
Whereas some coastal dead zones could be recovered by simply controlling fertilizer usage, expanded low-oxygen areas caused by global warming might remain for many years. The findings are reported in a paper 'Long-term ocean oxygen depletion in response to carbon dioxide emissions from fossil fuels' in Nature Geoscience.
Psoriasis affects some 7.5 million people in the United States, causing sore, itchy patches of red, scaly skin. In many cases psoriasis is not only disfiguring; between 10 and 30 percent of patients develop psoriatic arthritis, a painful inflammation of the joints. Current treatments, including different types of immunosuppressive agents, aren't always effective, and they can cause serious side effects.
Psoriasis has a strong genetic component; a child with two affected parents has a 50 percent chance of developing it; siblings have a three- to six-fold risk. But the genes responsible for psoriasis haven't yet been completely understood.
When comparing players in baseball, it's difficult to cross even modern 'eras' because conditioning and strategies have changed. 6'2" shortstops are relatively common now but unheard of even 30 years ago. Likewise, American football has undergone strategic shifts that are easily recognizable, with the West Coast Offense less in vogue but a 3-4 defense coming back into popularity as compared to 20 years ago.
New research by an Arabian prince could see the millions of date stones disposed of in Saudi Arabia each year instead used to decrease air and water pollution. Abdulrahman Bandar Al-Saud, 34, is studying for a PhD at Queen’s University Belfast’s School of Chemistry and Chemical Engineering.
His research is based on the premise that date stones can be used to develop activated carbon with a high adsorption capacity. Activated carbon is a form of the element that has been processed to make it extremely porous with a very large surface area available for adsorption.
European researchers say they have developed the most advanced spontaneous language understanding (SLU) system ever devised for both Polish and Italian languages. That's because it is also the first one, according to the Luna project behind the work.
Spontaneous language understanding is far more advanced than the traditional interactive voice response (IVR) systems that people may already be familiar with. In traditional IVRs, the user is required to answer questions with specific words or short sentences proposed by the systems.
But with SLU, language systems are designed to respond to spontaneous speech: real conversations between people that include the sentence fillers and pause words like ‘um’ and ‘er’.
Did a catastrophic flood of biblical proportions occur, as stated in the story of Noah's Ark? If so, it may have been the shores of the Black Sea that were drowned 9,500 years ago, wiping out early Neolithic settlements around its perimeter.