21/11/2007

Scientists unravel plants' natural defenses

A team of researchers, led by the University of Sheffield and Queen Mary, University of London, has discovered how plants protect their leaves from damage by sunlight when they are faced with extreme climates. The new findings, ...

Don't judge a brook by its color -- brown waters are more natural

Over the last 20 years lakes and streams in remote parts of the UK, southern Scandinavia and eastern North America have been increasingly stained brown by dissolved organic matter. In this week’s Nature journal (22 November) ...

Direct evidence that bioclocks control chromosome coiling

There is a new twist on the question of how biological clocks work. In recent years, scientists have discovered that biological clocks help organize a dizzying array of biochemical processes in the body. Despite a number ...

UD researchers set new chemical world record

Chemists from the University of Delaware, in collaboration with a colleague at the University of Wisconsin, have set a new world record for the shortest chemical bond ever recorded between two metals, in this case, two atoms ...

New microscope peers into secret lives of cells

“See those white sparks?” asks Kirk Czymmek, as he points to the video on his computer screen of a highly magnified heart cell in action. Tiny fireworks flash across the screen with every pulsation of the cell.

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