Nicotine isnt all bad, despite its addictive qualities and its presence in tobacco products, increasingly taboo in these health-conscious times. As a chemical compound, nicotine even has beneficial properties. Its used around the world as a relatively cheap, environmentally friendly insecticide, repelling bugs that attack tobacco and other plants, and – contrary to popular misconceptions – it is not a carcinogen.
Take a nicotine molecule and snip off a methyl group, though, and y
Clinical tests began today of a novel vaccine directed at the three most globally important HIV subtypes, or clades. Developed by scientists at the Dale and Betty Bumpers Vaccine Research Center (VRC), part of the National Institute of Allergy and Infectious Diseases (NIAID), the vaccine incorporates HIV genetic material from clades A, B and C, which cause about 90 percent of all HIV infections around the world.
“This is the first multigene, multiclade HIV vaccine to enter human trials,” no
In reality, Ulm was the site of a full-scale trial of the new DELTASS (Disaster Emergency Logistics Telemedicine Advanced Satellites System) system, developed by a team lead by CNES for the European Space Agency (ESA).
DELTASS uses both geo
A fraction of a second after the Big Bang, all the primordial soup of matter in the Universe was `broken` into its most fundamental constituents. It was thought to have disappeared forever. However scientists strongly suspect that the exotic soup of dissolved matter can still be found in today`s Universe, in the core of certain very dense objects called neutron stars.
With ESA`s space telescope XMM-Newton, they are now closer to testing this idea. For the first time, XMM-Newton has been able
In the race to cure cancer, researchers look for roadblocks that could stop cancer in its tracks, preventing it from spreading to other parts of the body. Scientists from the University of Wisconsin-Madison may have found that blockade – an enzyme critical to the ability of cells to metastasize, a biological phenomenon by which cells migrate. The findings are published in the Nov. 7 issue of the journal Nature.
“The real, life-threatening problem with most cancers is that they migrate away
JASON II reaches most of the world ocean floor and sends data ashore via the Internet
A new generation of remotely operated vehicle (ROV) capable of routine operation to depths of 6,500 meters (21,320 feet) and communicating its data back to shore via the Internet has been developed by the Woods Hole Oceanographic Institution (WHOI). The vehicle, JASON II, recently completed its first science cruise off the coast of Washington and Oregon and is currently at sea in the Pacific wo