Brightsurf Science News & Current Events

October 28, 1999
National Chemistry Week helps families discover polymers, November 7-13
If you picked up a cell phone, put on cotton fabric or Teflon sports gear, changed a disposable diaper or just had lunch today, you've been putting polymers to use - and during this year's National Chemistry Week, November 7-13, families across the U.S. will have a chance to learn more about these everyday results of chemistry.

The evolution of the sex chromosomes: step by step
No other pair of chromosomes is as diverse as the sex chromosomes.

Cranfield technology noses ahead
Researchers have developed an artificial nose which is able to detect and diagnose Urinary Tract Infections.

Possible link between heart attack and helicobacter pylori infection
John Danesh et al of the International Studies of Infarct Survival (ISIS) Collaborative Group at the Radcliffe Infirmary, Oxford report a moderate association between coronary heart disease and testing positive for helicobacter pylori infection.

ACS designates plastic used in Hula Hoop® a Historic Chemical Landmark
The discovery of polypropylene and the development of a production process for high-density polyethylene, the plastic that made the Hula Hoop® possible, is being designated a National Historic Chemical Landmark by the world's largest scientific society, the American Chemical Society.

Chemistry's in the forecast for National Chemistry Week
Whether the weather's good or bad, most people turn to polymers for protection - and polymers are the focus of this year's National Chemistry Week, November 7-13.

Researchers use 'voice recognition' program to count bats
Researchers here have shown that computer technology can be used to help estimate how many bats are in an area, simply by analyzing recorded bat calls.

Woman pregnant after selecting healthy embryo
Fertility specialists and geneticists at Oregon Health Sciences University in Portland have performed the first successful preimplantation genetic diagnosis (PGD) in the Pacific Northwest.

When sperm whales talk, UW researcher listens
A University of Washington researcher has developed a method of acoustic analysis that allows him to identify individual sperm whales by the sounds they emit.

Revalidation - The international experience
A collection of articles in this week's BMJ, pp 1180 - 92, describe the processes of revalidation in the USA, Canada, Australia, New Zealand and the Netherlands.

Tracing the evolution of sex chromosomes
New research at the Whitehead Institute sheds light on how sex chromosomes evolved from an ordinary pair of autosomes.

New evidence pushes back age of sex-determining chromosomes
HHMI researchers comparing genes on the sex-determining X and Y chromosomes have found that the ancestor of human sex chromosomes first arose from an identical pair of standard chromosomes approximately 240 to 320 million years ago, shortly after the divergence of the evolutionary lines leading to mammals and birds.

U.S. and German experts to speak on global climate change
U.S. and German experts will address the global challenges of climate change and its implications for the future at a public lecture November 16 in Hamburg, Germany.

Preventive detention for people with personality disorder is wrong
Government proposals for detaining indefinitely people with dangerous severe personality disorder masquerade as extensions to mental health services but are in fact unethical proposals for preventive detention, says an editorial in this week's BMJ.

Colorado State scientist is Ecological Society of America president
Diana Wall, Director of the Natural Resource Ecology Laboratory and Associate Dean of the College of Natural Resources at Colorado State University, has been elected the new president of the Ecological Society of America.

Yale prostate cancer study shows newer implant therapy has fewer side-effects, could lead to better treatment outcomes
A Yale study of complication rates from two radiation implant therapies for prostate cancer shows that the newer therapy, Palladium-103, has fewer long-term side effects than Iodine- 125, an older, more commonly prescribed therapy.

In an editorial in this week's BMJ, Graham Buckley, executive director of the Scottish Council for Postgraduate Medical and Dental Education says that British medicine is coming rather late to an acceptance of revalidation.

Hydrogen peroxide could be key to future power sources
Scientists and engineers from around the world will meet in November at Purdue University to discuss hydrogen peroxide's role in developing a new class of environmentally friendly rocket propellants and highly efficient fuel cells for generating electricity.

Home blood pressure measurements are usually acceptable
Asking patients to measure their blood pressure at home avoids the problem of

A swift look at the biggest explosions in the universe
Spurred by the thousands of gamma-ray bursts recorded over the last three decades, NASA is planning missions dedicated to discovering the causes of what had been an oddity and now has become a primary mystery in astronomy.

Harvard Medical School researchers discover first in a new class of mitosis inhibitors
Nine months after the Harvard Medical School Institute for Chemistry and Cell Biology opened its doors, its researchers report their first success. in the October 29 Science, they describe how they used a series of screens to fish out of a library of chemical compounds the first known small-molecule inhibitor to a motor protein involved in cell division. is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to