Brightsurf Science News & Current Events

April 05, 2001
Panda habitat not protected by nature reserve, say Science researchers
High-quality panda habitats in China's Wolong Nature Reserve have been disappearing faster than or at rates similar to unprotected areas outside the park since the reserve's creation, according to a new study in the 6 April issue of the international journal, Science.

Chimeric mice reveal clues to how brain's clock 'ticks'
By studying mice whose brains contain a composite of neurons that produce normal and longer-than-normal circadian rhythms, HHMI researchers are beginning to understand how neurons control the body's 24-hour, internal clock.

Virus studies reunite two families of major insect-borne viruses
Two families of viruses, which were previously thought to be related and later were considered unrelated, are celebrating a scientific family reunion of sorts.

Forum on Research and Development in FY 2002 Budget
The Washington Science Policy Alliance (WSPA) will be hosting a forum on the Bush Administration's FY 2002 budget for R & D at the American Association for the Advancement of Science on April 12, 2001.

General clinical research center at Wake Forest University Baptist Medical Center awarded $14.7 million
The General Clinical Research Center (GCRC) at Wake Forest University Baptist Medical Center, where thousands of area residents have participated in clinical trials or population studies since 1993, has been awarded $14.7 million to continue for another five years.

Researchers close in on stroke 'candidate gene'
A gene variation may increase stroke risk among whites - a finding that may lead to early identification of individuals at increased risk for stroke, researchers report in the April issue of Stroke: Journal of the American Heart Association.

Geologists' discoveries of how sandstone traps riches will help oil, gas explorers
Jason Reed, a doctoral student in geological sciences at Virginia Tech, has determined that impervious cementing minerals deposited millions of years ago surround porous compartments in thick sandstone, trapping water, gas, or petroleum hundreds of feet underground.

Research on bioengineered crops, global warming and a new flu vaccine will be featured at gathering of world's largest scientific society in San Diego
More than 7,700 cutting-edge research findings will be presented at the 221st national meeting of the American Chemical Society, April 1-5, in San Diego.

UNC scientists find U.S. children snack more now than they did two decades ago
Using information from three national surveys, scientists at the University of North Carolina at Chapel Hill have confirmed what a lot of people have suspected -- U.S. children snack more now than they did in the late 1970s.

Science for global health - World Health Day 2001
Today, on World Health Day 2001, we urge renewed commitment to ensuring that the benefits of good health, including mental health, are available to all people everywhere, not just to those who live in countries that enjoy the vast advantages of prosperity.

Variations in a gene that regulates food intake are associated with anorexia nervosa
Dutch and German scientists have discovered that anorexia nervosa patients have genetic variations (polymorphisms) in the agouti-related protein gene.

Polymer full of holes -- But good for photonics?
Scientists developing photonic devices for optical and electronic applications may get a boost from a new process for

Molecular envelopes help medicines penetrate multidrug-resistant cancer cells
Researchers claim they can target drugs to multidrug resistant tumors by encasing them in a type of molecular

IQ linked to long life
Children with higher IQs may live longer, suggests a study in this week's BMJ.

More than hot air: Simple technique produces complex polymer structures for laser arrays, waveguides & tiny beakers
A surprisingly simple technique based on physical phenomena first described more than a century ago could provide a new and highly controllable means of producing complex three- dimensional polymer structures.

Home chemotherapy is a viable alternative to hospital treatment
Home chemotherapy is a safe and acceptable alternative to hospital treatment for patients with colorectal cancer that may improve compliance with treatment, according to a study in this week's BMJ.

LabNotes - Spring 2001
Quarterly research highlights from Pacific Northwest National Laboratory.

Nicotine patches do not increase risk for first heart attack
Despite earlier reports to the contrary, nicotine patches do not increase your risk for heart attack.

Spurred by the worldwide fight against malaria, scientists release parasite genome database
An international team of scientists today unveiled an Internet-based database allowing genomic analysis of Plasmodium falciparum, the parasite responsible for the vast majority of malaria deaths worldwide.

Physicists verify reversal of Snell's Law in 'left-handed' composite material
Physicists at the University of California, San Diego who last year produced a new class of composite materials believed to reverse the behavior of many fundamental electromagnetic properties associated with materials, have experimentally verified the first of these predicted reversals.

Blood medicine may ease cocaine withdrawal
Medication long used to treat high blood pressure may ease severe withdrawal symptoms during the early stages of treatment for cocaine addiction, offering new hope for patients unable to wean themselves off cocaine through traditional psychotherapeutic counseling, say scientists at the University of Pennsylvania School of Medicine and the Department of Veterans Affairs Medical Center in Philadelphia.

Sex inequalities found in primary care treatment of heart disease
A study in this week's BMJ reports that treatment of heart disease in primary care is systematically biased towards men, despite no suggestion of sex differences in the management of these patients in England's national service framework for coronary heart disease.

New-found pulsars start to crack gamma-ray source mystery
McGill University physics professor Victoria Kaspi, together with an international team of astronomers using the Parkes 64-m radio telescope in Australia, have found about 30 young, energetic pulsars which may be the counterparts of otherwise unidentified Galactic gamma-ray sources.

Chemistry of life in outer space is topic of two-day symposium, April 4-5
Papers in this symposium are only embargoed until date and time of presentation.
A two-day symposium at the 221st national meeting of the American Chemical Society, the world's largest scientific society, will explore the current hypothesis that the chemical precursors of life originated in outer space, not on Earth as previously thought.

Genetic contributions to suicide
According to the Centers for Disease Control suicide is the 8th leading cause of death in the U.S.

Small streams important in controlling nitrogen
Streams are vibrant ecosystems, and the smallest streams remove as much as half of the inorganic nitrogen that enters them, according to researchers from more than a dozen institutions who studied streams from Puerto Rico to Alaska over the course of two years.

Drinking Water from Forests and Grasslands: A Synthesis of the Scientific Literature
About 60 million Americans live in communities that draw source water from National Forests.

Immunisation is not linked to sudden infant death
Vaccination against diphtheria, tetanus and pertussis is given at ages 2, 3 and 4 months in the UK, which coincides with the peak age for the sudden infant death syndrome (SIDS).

Hitchhiking molecules could have survived fiery comet collisions with Earth, UC Berkeley experiment shows
Some scientists have proposed that the raw material for life -- organic stuff such as amino acids -- could have arrived from space aboard comets to seed life on Earth.

Researchers find evidence of aging system that may promote long life
A Brown-based research team says an important aging function takes place in the brain, and it plays a powerful role in the rest of the body.

Konza Prairie instrumental in research that indicates small streams important in controlling nitrogen, preserving water quality
Streams are vibrant ecosystems, and the smallest streams remove as much as half of the inorganic nitrogen that enters them, according to a Kansas State University researcher who is part of a national group of researchers who studied 10 streams from Puerto Rico to Alaska over the course of three years.

With an eye on safety, UF experts explore cellular mechanisms of gene therapy
In an era of heightened concern about gene therapy safety, a new University of Florida study provides reassurance that corrective DNA can be administered without simultaneously causing harmful genetic changes.

Computer program predicts chances of brain-cell death from stroke
A newly developed computer program predicts the chances of brain cells dying as the result of a stroke and may refine the use of brain-saving stroke drugs, according to research reported in the April issue of Stroke: Journal of the American Heart Association.

Engineers use computer simulation to design synthetic blood vessels
A team of engineers and surgeons led by Dr. Clement Kleinstreuer, professor of mechanical and aerospace engineering at North Carolina State University, is using computer simulation to pioneer new, experimental methods of designing synthetic arteries, veins and bypass grafts.

Small streams contribute far more than previously thought to cleaning waterways
Small streams remove more nutrients such as nitrogen from water than do their larger counterparts, according to researchers who have applied sampling methods developed in a National Science Foundation (NSF) Arctic area ecological study to waterways across the nation.

Major dental problems go unresolved in many HIV patients
Severe dental conditions associated with HIV go untreated more than twice as often as other health problems related to the disease, a new UCLA study shows.

Fatigue is an important factor in serious road crashes
Fatigue, especially when combined with alcohol, presents a particularly high risk of road crashes resulting in death or serious injury, finds a study in this week's BMJ.

Nature reserves aren't protecting pandas, study shows
The way to panda extinction may be paved on good intentions, a Michigan State study published in Science shows.

Reversing DNA damage caused by the sun before it becomes skin cancer may be possible
Scientists have synthesized an artificial enzyme they believe can repair sun-damaged DNA, the cause of many skin cancers.

Intravenous cell transplant holds promise for stroke recovery
For the first time researchers have used bone marrow cells to reduce stroke-induced disability in rat experiments, according to a report in the April issue of Stroke: Journal of the American Heart Association.

Wood preservation: stopping termite destruction and making safer wood preservatives
Papers in this symposium are only embargoed until date and time of presentation.
Treasured wooden structures throughout the United States are being destroyed by wood- eating organisms, including shipworms, termites and fungi.
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