Brightsurf Science News & Current Events

September 06, 2000
UCSF study points to new dilemmas confronting HIV healthcare providers
The new optimism expressed by healthcare providers treating HIV seropositive patients is mitigated by concerns surrounding treatment decisions and skepticism about the future according to a new University of California, San Francisco study.

Study reveals barriers to effective doctor-patient communication
Patients with chronic heart failure often feel unable to ask their doctors questions about their illness and believe that doctors are reluctant to provide them with too much knowledge, finds new research.

UF technique detects tiny, potentially harmful airborne particles
A University of Florida professor has found a way to detect and identify extremely low levels of air pollution, a step that comes as concerns mount over the health impacts of breathing in small particles.

Fossil record shows tropical Pacific leads climate change; implications for global warming
Just like El Nino and La Nina cause short term world-wide climate changes emanating from the waters of the Pacific warm pool, it appears that the tropical Pacific may be the driver of the changes that have lead to past ice ages.

New evidence indicates huge vegetation loss accompanied mass extinction
The greatest mass extinction in Earth history eliminated 85 percent to 90 percent of all vertebrate species 250 million years ago.

El Niño cycles linked to cholera outbreaks
About 11 months after an El Niño in the Pacific, hospitals in Bangladesh can expect a surge of cholera, according to the first mathematical model to link climatic cycles with cholera outbreaks, reported in the Sept.

Research paves the way for faster, better, cheaper DNA detection method
Northwestern University researchers have combined gold nanoparticles and DNA to form tiny probes capable of DNA detection that is more accurate and less expensive than conventional methods.

Testosterone skin patch improves sexual functioning in surgically menopausal women
A multi-institutional research group has found that use of an experimental testosterone skin patch can relieve impaired sexual functioning in surgically menopausal women - that is, women who have had their ovaries removed before natural menopause.

Study published in NEJM reports that testosterone patch improves sexual function and psychological well-being in surgically postmenopausal women
According to a study published in the Sept. 7 issue of the New England Journal of Medicine, an experimental testosterone patch improved the sexual function and psychological well- being of women who had undergone surgical menopause (removal of the ovaries and uterus).

MIT experiment is first aboard International Space Station
The first hands-on experiment to fly aboard the International Space Station could lead to better telescopes, robotic arms and other devices affected by vibrations in space.

Graying population prompts debate on adequacy of nation's health care labor force
A panel of national leaders -- policymakers, business executives, and academics -- will begin debating the pending crisis in the nation's health care labor force as our population ages.

150-year global ice record reveals major warming trend
From sources as diverse as newspaper archives, transportation ledgers and religious observances, scientists have amassed lake and river ice records spanning the Northern Hemisphere that show a steady 150-year warming trend.

President Clinton honors science, mathematics and engineering mentors
Ten individuals and ten institutions today received the 2000 Presidential Award for Excellence in Science, Mathematics and Engineering Mentoring.

New mouse marks latest stride in muscular dystrophy research
Physicians at the University of Rochester have generated mice with symptoms that mimic those of patients with myotonic dystrophy.

Scientists unravel ancient evolutionary history of photosynthesis
The origin of photosynthesis in green plants, on which all life on Earth depends for food and oxygen, has been a longstanding problem.

NIH awards grant to UCSF and Kaiser to strengthen women's health research
The National Institutes of Health has awarded a grant to the University of California, San Francisco and to the Kaiser Permanente Division of Research in Oakland to create a scholarship program to train young investigators in women's health and bolster research in this area.

New temperature analysis should aid climate-change studies
In a new study expected to improve predictions of global climate change, microscopic fossil shells from the deep ocean floor show that prehistoric temperature shifts in the tropical Pacific Ocean correlate closely with the birth and death of ice ages, say University of California scientists.

Regular jogging leads to longer life expectancy
Despite recent reports of deaths during jogging, a study in this week's British Medical Journal shows that the risk of death in persistent joggers is significantly lower than in non-joggers or even those new to jogging.

Protein discovery may lead to new Alzheimer's drugs
An international team of researchers lead by the University of Toronto's Dr.
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