We do not feel the nitrogen of air, and scientists do not believe that under normal pressure nitrogen can affect human organisms. However, being under water or in the altitude chamber nitrogen produces a different effect. Once the pressure is increased about four times, simulating the pressure which exists at the 30- meter depth, the first signs of intoxication usually show up. They are the same that accompany alcoholic intoxication: unreasonable gaiety, talkativeness, depressed attention, impaired s

What would you use to try and find an underground water leak, your ears or radar? Believe it or not the only way to find water leaks involves trying to hear the hiss of the leak through a device like a stethoscope. This antiquated system could soon be a thing of the past as a fast and full-proof method using radar is being developed thanks to an investment of £76,810 from NESTA (the National Endowment for Science, Technology & the Arts), the organisation that invests in UK creativity and innovation.

Sexual jokes, suggestive glances, and other forms of gender and sexual harassment may be funny to writers, producers and viewers of workplace-based situation comedies, but Penn State researcher Beth Montemurro says they are far from a laughing matter.

Montemurro, assistant professor of sociology, studied five such programs on the NBC television network – Veronica’s Closet, News Radio, Working, Just Shoot Me and Suddenly Susan – during 1997 and 1998 to see just how prevalent gender and sexua

Findings could improve retinal and other nervous system transplants

For the first time scientists have shown that brain stem cells are immune privileged, which means that they are invisible to a transplant recipient’s immune system and do not trigger the immune system to reject them. These results, published in the July issue of Stem Cells, indicate that using central nervous system stem cells in transplants for diseases of the eye (which is part of the brain), brain, and spinal

Researchers at the Duke Comprehensive Cancer Center have demonstrated a new way to target and choke off the blood supply to cancerous liver tumors in mice. The new method inhibited liver tumor growth and extended survival in mice by blocking a receptor on blood vessel endothelial cells that triggers blood vessel growth. Blocking this “Tie2” receptor worked as well as or better than naturally occurring proteins that inhibit blood vessel growth in tumors, the study showed.

The new study comes

An international research team co-led by Prof. Harvey Richer of the University of British Columbia today announced that it has confirmed the existence of the universe’s oldest known and farthest planet.

The findings end a decade of speculation and debate as to the true nature of this ancient world, which takes a century to complete each orbit. The un-named planet is 2.5 times the mass of our solar system’s largest planet, Jupiter. Its existence provides evidence that the universe&