European regulators should pursue their own investigation into how the ‘wrong’ genetically modified corn was allowed on the market for years. Unfortunately, their US equivalents show little sign of rising to the challenge.
Volume 434 Issue 7035, 14 April 2005
News in Brief
Dust clouds can cool the Earth and halt hurricanes. But the world's biggest dust source was until recently a war zone. Jim Giles joins one of the few research teams to make the trip.
Books & Arts
News & Views
Can cells sense and stop uncontrolled division driven by cancer-promoting stimuli? Perhaps so, given evidence that aberrant division can trigger the cellular response to DNA damage — blocking growth — at early stages in human cancer.
Various studies indicate that the hydrological cycle is speeding up at high northern latitudes. The resulting increase in freshwater flow into the Arctic Ocean is predicted to have long-range effects.
Our ideas about how crocodiles evolved have just taken a battering. It seems that these cold-blooded creatures, with their limited capacity for prolonged activity, might have had active, warm-blooded ancestors.
An idea that a mineral phase transition may occur not once, but twice, close to the core–mantle boundary has been tested with seismic data. The resulting picture of the deep Earth is sure to provoke debate.
TRP channels are best known for their role in sensory systems: detecting heat and cold, taste, pain and so on. Unexpectedly, they have also been shown to help the growing axons of nerve cells find their way.
The matter from which the first stars formed was that left behind by the Big Bang. Stars containing extremely small amounts of heavy elements such as iron provide clues to the chemical composition of this matter.
Careers and Recruitment
As supplies of fossil fuels dwindle, the world is searching for alternative energy supplies. Materials scientists are in demand, says Virgina Gewin, but there are jobs in many areas.