Brightsurf Science News & Current Events

March 09, 2000
Do US ecosystems balance US fossil fuel use?
Atmospheric carbon dioxide gradients suggest that uptake of carbon dioxide by US forests may balance US fossil fuel use.

Protein switch controls proliferation of hematopoietic stem cells
A research team from the Massachusetts General Hospital has identified a key protein that appears to control the development and proliferation of hematopoietic stem cells.

Resolving mathematical mystery of turbulence a mission for Alexandre Chorin
For more than 30 years, Dr. Alexandre Chorin has worked to develop computational methods for solving problems in fluid mechanics, with the hope that they will eventually lead to an understanding of the most difficult problem of applied mathematics -- the problem of turbulence.

Preventing coronary heart disease by assessing absolute risk
In an editorial in this week's BMJ, Rod Jackson, professor of epidemiology at the University of Auckland's Department of Community Health, supports British clinical guidelines that say priority for treatment should be given to patients at high absolute risk of coronary heart disease, rather than focusing on individual risk factors.

American Urological Association supports Medicare Osteoporosis Supplement Act
Citing that increased access to bone density testing will save thousands of men with advanced prostate cancer from the permanent disability and debilitation of osteoporosis, the American Urological Association strongly gave its support to the Medicare Osteoporosis Management Act.

100th Meeting of the American Society for Microbiology
The American Society for Microbiology will hold its 100th General Meeting, May 21-25, 2000, in Los Angeles, California.

Honesty the best policy for presidential hopefuls, according to primary study
A presidential primary study by University of Cincinnati communication professor Judith Trent finds that, for the first time since she began studying the presidential primaries in 1988, Americans rate

NC State scientists confirm second toxic pfiesteria species
Scientists at North Carolina State University have confirmed the existence of a second species of Pfiesteria, a toxic microbe linked to fish kills and human health problems in mid-Atlantic waters.

The health needs of children in care are neglected
In an editorial in this week's BMJ, Leon Polnay, professor of child health at Queen's Medical Centre, Nottingham and Harriet Ward, senior research fellow at Loughborough University, say that a complete culture change is required to achieve better continuity of care for children in the care system.

Simple change in mechanical ventilator cuts deaths by more than 20 percent
A nationwide clinical trial has found that a simple adjustment in the way patients receive breathing assistance can cut mortality by 22 percent among victims of Acute Respiratory Distress Syndrome (ARDS), an often fatal lung condition that affects between 100,000 and 150,000 people in the US annually.

MGH dermatologist develops new laser techniques to safely remove hair from darker skins
A dermatologist from the Massachusetts General Hospital (MGH) has developed a way to remove excessive hair successfully and safely from people with darker ethnic skin using new laser equipment and techniques.

More efficient blood pressure treatment would dramatically cut heart disease
If treatment for blood pressure was more efficiently targeted, cases of heart disease and stroke could be cut by more than two thirds compared with current treatment, suggests a study in this week's BMJ.

Big city drug prevention program targets Spencer, Iowa, population 13,000
In response to the growing rate of drug abuse in America's rural communities, twelve University of Chicago medical students will immerse themselves in the tiny town of Spencer, Iowa, for four days, bringing with them healthy and diseased human organs to give kids an inside look at what drugs can do to the body.

Colorado State and international scientists say loss in biodiversity by year 2100 could be consequence of global changes
A report in Science is the first systematic look at how biodiversity may be affected by several agents of human- caused global change.

Air pollution can prevent rainfall, reported in the 10 March 2000 issue of Science
Urban and industrial air pollution can stifle rain and snowfall, a new study shows, because the pollution particles prevent cloud water from condensing into raindrops and snowflakes.

Cancer 'brake' keeps growth in check
HHMI researchers and their colleagues have identified a tumor suppressor gene called Chk2 that activates the p53 gene.

Molecular 'handbrake' could be released to send cancer cells to their death
Pharmacologists from Duke University Medical Center have discovered the first evidence that an enzyme called Pin1 acts as a sort of molecular emergency handbrake on cell division, protectively arresting cells from dividing until any damaged DNA has been repaired.

Altering mechanical ventilator patterns reduces deaths from acute lung injury and acute respiratory distress syndrome
Researchers have found that altering the way they use mechanical ventilators to treat patients with acute lung injury and acute respiratory distress syndrome (ALI-ARDS) significantly reduces deaths from the disease.

Health of residents in nursing homes at risk due to understaffing
According to an article published in the February issue of the Gerontologist, current data shows that the average nurse staff levels in some of the nation's nursing homes are too low to assure quality care.
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