Study is first link ’compensatory prefrontal network’ to better performance on memory tests

A group of Canadian researchers has found the most direct evidence to date that people with early-stage Alzheimer Disease can engage additional areas in the brain to perform successfully on memory tests.

Led by Dr. Cheryl Grady, a senior scientist with The Rotman Research Institute at Baycrest Centre for Geriatric Care, the study is published in the February 1, 2003 issue of

Researchers in the Baxter Laboratory at Stanford University Medical Center have published new evidence showing that cells from the bone marrow might help repair or maintain cells in other tissues. In a paper in this week’s online edition of the Proceedings of the National Academy of Sciences, the researchers describe finding chromosomes from a bone marrow transplant in the brain cells of transplant recipients.

When people receive a bone marrow transplant after high-dose chemotherapy, s

A team of network security experts in California has determined that the computer worm that attacked and hobbled the global Internet eleven days ago was the fastest computer worm ever recorded. In a technical paper released today, the experts report that the speed and nature of the Sapphire worm (also called Slammer) represent significant and worrisome milestones in the evolution of computer worms.

Computer scientists at the University of California, San Diego and its San Diego Supercompute

Use of a vitamin A derivative in former smokers restored production of a crucial protein believed to protect against lung cancer development, researchers at The University of Texas M. D. Anderson Cancer Center have found.

Use of a Vitamin A derivative in former smokers restored production of a crucial protein believed to protect against lung cancer development, researchers at The University of Texas M. D. Anderson Cancer Center have found.

Although they don’t have clear

’We consider these cells conditionally alive’, explains Professor Vladimir Repin, leader of the research team, ’because they were fixed in formalin to preserve after extracting them from the mammoth body in the field. However, the inner structure of these cells is undamaged, so we suggest that the rest frozen tissues contain similar cell layers, which could be defrozen’. The sensational finding was made by Oleg Taranov, a member of the research team.

The story is as follows. Last su

Scientists at the John Innes Centre (JIC), Norwich have discovered the gene that gives freshly turned soil its distinctive smell. A smell, it is believed, that enables camels to find water in the desert. The ‘earthy’ smell is caused by geosmin, a chemical produced by a common bacterium, Streptomyces coelicolor, that is found in most soils. The discovery of the gene that produces geosmin is reported in the International science journal the Proceedings of the National Academy of Sciences of the USA.