Along with Canadian colleagues, a University of North Carolina at Chapel Hill scientist has discovered fossils of plants dating back some 420 million years.

The discovery, made on Bathurst Island in the Northwest Territories about 800 miles from the North Pole, shows vascular plants were more complex at that time than paleontologists previously believed and is significant for that reason, the UNC researcher said.

“These are not the earliest vascular plants ever found, but they are

New measurements show that the flow of ice in the Greenland ice sheet has been accelerating since 1996 during the summer melt season. The results suggest that the ice sheet may be responding more quickly to the warming climate than previously thought.

In an article published in Science magazine’s online Sciencexpress June 7, Jay Zwally, an ICESat Project scientist at the NASA Goddard Space Flight Center, Greenbelt, Md., Waleed Abdalati, a Polar Program scientist at NASA Headquarters, W

Ph.D. candidate Nina Isoherranen wins Kaye Awards

Nina Isoherranen, a Ph.D. candidate at the Hebrew University School of Pharmacy, was awarded a Kaye Innovation Award this week for developing a new medication to treat epilepsy, migraine headaches, and chronic pain that does not cause birth defects in animal models, unlike other medicines currently used to treat epilepsy.

Ms. Isoherranen explained that 1% of the population suffers from epilepsy, a central nervous system (CNS)

Inks which cannot be photocopied – to confound bank-note forgers – are exciting printers of most of the world`s major currencies. A team from colour chemistry, led by Professor David Lewis and Dr Long Lin, has created an ink which changes colour when copied or scanned, to prevent forgers colour matching banknotes.

“There are already hundreds of security measures in place for banknotes,” said Professor Lewis. “But these don`t stop forgeries – some estimates put the number of forged banknotes

Consider the plight of the lonely nene goose: Fated to occupy just one island in all the world; reduced in numbers to fewer than 30 individuals by the middle of the last century; each bird as closely related to the others as human siblings.

What caused the narrowing of the nenes’ circumstances to the point of near-extinction? Was the isolation of island living to blame for draining their gene pool to a puddle, or was it caused by the 20th century population decline? How did they surviv

Study of Lupus Patient Confirms Promise of Stem Cell Transplant Therapy
Findings Indicate Need for Wider Clinical Trials

For patients with severe autoimmune diseases, blood stem cell transplantation may be promising therapy option. This process involves an infusion of healthy blood cells to replace the body`s own malfunctioning ones and restore immune function. A recent case study, published in the June 2002 issue of Arthritis & Rheumatism, has shown this approach to be particul