Brightsurf Science News & Current Events

July 29, 1999
Lemurs critical to regeneration of Madagascar forests
The dry forests of western Madagascar are unusual: they have among the greatest diversity of trees in the world but the lowest diversity of animals that disperse the seeds.

Conserving the Everglades: Less is more
Biodiversity is the buzzword of the day but there's more to conservation than sheer numbers of species.

Comprehensive pituitary center at Cedars-Sinai brings together under one roof medical, surgical, research and other components
With an emphasis on patient convenience and integrated clinical, surgical and research components, Cedars-Sinai Medical Center is launching a unique and comprehensive pituitary center.

Walking markedly improves mental abilities of those over 60
Aging couch potatoes, start walking. A University of Illinois study has found that previously sedentary people over age 60 who walked rapidly for 45 minutes three days a week can significantly improve mental-processing abilities that otherwise decline with age.

Purdue helps Indiana companies with pollution dilemma
Engineers at Purdue University have shown in preliminary findings that pollution associated with several key Indiana industries could be reduced by more than 40 percent through an employee-training program.

Combining medical, agricultural and chemical research, UF Genetics Institute is making an impact and attracting renowned scientists
Combining computer technology with molecular biology -- a union that may improve the study of disease development such as cancer -- is the newest marriage of genetic sciences being forged by the University of Florida Genetics Institute.

Study at Cedars-Sinai Medical Center investigates possible protective effects of plant compounds on the uterus
Researchers at the Center for Women's Health at Cedars-Sinai Medical Center are launching a clinical trial to assess whether eating certain plant compounds can have positive effects on the lining of the uterus.

Problems with health information on the Internet
If you search the Internet for advice on treating your health problems, much of what you get may be inaccurate, inappropriate, misleading or unreviewed by doctors.

National Science Board approves five new NSF Science and Technology Centers
The National Science Board (NSB) today approved five new National Science Foundation (NSF) Science and Technology Centers (STCs), agreeing to commit almost $94 million over five years in a range of important scientific and technological areas.

Duke computer scientists exceed 'gigabit' data processing speeds with Internet software
Duke University computer science researchers have developed a system for Internet communications at speeds higher than one billion bits - 1 gigabit - per second in a local area network (LAN) of personal computers.

Fly vs. fly
Researchers at the University of Chicago have discovered two offensive mechanisms male fruit flies use to ensure that more of their genes get passed on to the next generation: displacement and incapacitation of a previous male's sperm.

Transformation of normal human cells into cancer cells
Researchers led by Dr. Robert A. Weinberg of the Whitehead Institute have made the first genetically defined human cancer cells, according to a report published in the July 29 issue of Nature.

Mosquitofish threaten amphibians
Sometimes you have to prove the obvious to get something done.

Transplant cells show capacity for mending nervous system
Using stem cells grown in the laboratory, scientists have successfully transplanted those cells into the nervous systems of ailing rats and arrested the course of a debilitating congenital disease.

Superfluid is shown to have property of a solid
Northwestern University physicists have shown that superfluid helium-3 -- the light isotope of helium, which is a liquid that has lost all internal friction, allowing it to flow without resistance and ooze through tiny spaces that normal liquids cannot penetrate -- actually behaves like a solid in its ability to conduct sound waves.

New electrical transformers will improve power quality
An engineering consortium led by Purdue University and the University of Missouri has taken a major step toward replacing the century-old technology behind the numerous, oil-filled power transformers that hang like icons from utility poles in residential neighborhoods.

Simulating protein folding from physical laws
A group led by Harold Scheraga, the Todd Professor of Chemistry emeritus at Cornell University, has simulated the folding of the protein HDEA based solely on the physical laws that govern the behavior of its atoms.

Nerve cells with stoppage: Evidence for a molecular key step in the process of signal transduction between nerve cells
By eliminating a single synaptic protein, German and US- american researchers provide the first direct evidence that vesicles, which act as cellular transporters, underlie a maturation process making them competent for membrane fusion in the context of neurotransmitter release at nerve cell synapses (Nature, 29 July 1999).
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