Brightsurf Science News & Current Events

February 17, 1998
Coupled Hydrologic Model Takes Cue From Atmosphere
A linked atmospheric and hydrologic model system that simulates storm events and river basin response may allow researchers to study flood and drought regimes and the effects of climate change, according to a Penn State researcher.

Global Climate Change Creates Tangled Web Of Interactions
While climate modelers are busy predicting changes in global, regional and local weather patterns, a team of Penn State researchers is trying to determine how those changes will affect everything from drinking water and agricultural production to flooding and public health.

SOA Study Says Social Security Financing Would Be Relatively Unaffected By Largest Expected Mortality Improvements, But Uncertainty Persists
Social security financing in the U.S. and Canada is relatively immune from even the largest increase in human life span predicted by experts, a recent study concluded.

Why Is Antarctica So Cold? Scientists Pursue History Of Antarctic Ice Sheet
Departing Punta Arenas, Chile, in mid-February, 26 scientists representing 10 countries will sail aboard the ocean drilling ship JOIDES Resolution to collect core samples from the continental rise and shelf of the Antarctic Peninsula.

Scientists Seek First Glimpse Of Solar Features During February 26 Solar Eclipse
Scientists from several research institutes will aim new detectors at the sun's corona during the February 26 solar eclipse, searching for structures they've never before observed.

U.S. Scientists Honored For Lifetime Contributions In Hepatitis Research
Robert H. Purcell, M.D., head of the hepatitis viruses section at the National Institute of Allergy and Infectious Diseases (NIAID), received the 1998 King Faisal International Prize for Medicine in a special ceremony in Riyadh, Saudi Arabia, on February 14.

Age-Based Screening Is Cost-Effective Method To Control Chlamydial Infection
Screening all women younger than 30 years of age may be the most cost-effective method of stopping or limiting chlamydial infections and their consequences according to an article in the February 15 issue of Annals of Internal Medicine.

Carnegie Mellon Cognitive Neuroscientist Investigates How The Human Brain "Sees"
How the brain

Amphibian Mortality Due To UV Radiation
Yale University -- Field experiments in the Oregon Cascade Mountains have confirmed what many scientists had suspected - - ambient levels of ultraviolet-B (UV-B) radiation from the sun can cause high rates of mortality and deformity in some species of frogs and other amphibians.

Cardiovascular Disease Epidemic Threatens Developing Countries, Global Economy
Developing nations, including China and India, face an epidemic of heart disease and stroke that could devastate their economies, researchers report in today's Circulation: Journal of the American Heart Association.

Genetics May Explain Much Age-Related Hearing Loss
Age-related hearing loss may be lessened or prevented in the future by regulating an enzyme that neutralizes free-oxygen radicals, destructive molecules that can destroy sensory hair cells of the inner ear, suggests preliminary research conducted in the University at Buffalo's Center for Hearing and Deafness.

Modeling Climate On A Regional Scale
While global climate models attempt to capture the complex interactions of air, sea and land on a planetary scale, they may not provide sufficient information on a regional scale for practical purposes.

When To Reproduce? It's All In The Timing
Timing is everything, as lovers know. Susan Brawley, a University of Maine marine biologist, leads a research team which has used that truth, along with the results of biochemical studies with seaweed, to overturn a widely-held principle of reproduction in aquatic organisms.

$2 Million Dollar Grant Funds Salton Sea Web Site
The University of Redlands will operate a federally funded information Web site and database to help officials solve the problems threatening the Salton Sea.

Regional Model Key To Economic Impact Of Climate Change
Economists must look at the regional, not just the national or global picture, when assessing the effects of global climate change on the economy, according to Penn State economists.

Cancer Cells Self-Destruct When "Sweet Tooth" Is Thwarted
Johns Hopkins researchers have found evidence that some cancer cells are such incredible sugar junkies that they'll self-destruct when deprived of glucose, their biological sweet of choice.

Females' Siren Song Initiates Courtship Duets In African Frogs, Columbia Biologists Find
When her eggs are ready to fertilize, the female South African clawed frog begins a clicking song that initiates a courtship duet with a nearby male that helps the partners find each other.

The Romance Between Geometry And Physics
Stanford mathematician Robert Osserman describes the fundamental ideas of 19th century scientist Bernhard Riemann that have had a major impact on modern cosmology and physics in a Feb.

Phase Out Planned For One Of Top Five U.S. Pesticides, Plant Doctors Respond
Plant pathologists respond to the planned phaseout of methyl bromide production and use by creatively working to develop effective alternatives.

Sunscreens May Not Protect Against Melanoma Skin Cancer
Sunscreens may not protect users from developing the deadly skin cancer, melanoma ‹ one of the fastest rising cancers in the United States, reports Dr.

How Does Your City Grow?
Microclimates caused by urbanization might not have much influence on regional climate, but they do impact local liveability, according to Penn State meteorologists.

The Earth Moves...Synthetic Aperture Radar Takes The Snapshot
Stanford's Howard Zebker, co-developer of a new technology called synthetic aperture radar (SAR) interferometry, describes at AAAS how this satellite-based technology is being used to detect centimeter-sized changes over large areas of the Earth's crust -- such as a volcano breathing or a faultline relaxing after a quake.

Penn State Heart Researchers Will Present History Of Artificial Heart Research At AAAS Conference
Fifteen years after the much-publicized artificial heart implants of the early 1980s, artificial heart technology is quietly moving into widespread clinical use.

Jefferson Researchers First To Create Genetically Engineered Mouse To Study Photoaging
Researchers from Jefferson Medical College of Thomas Jefferson University, Philadelphia, have developed the first transgenic, or genetically altered, mouse used to study the causes and effects of photoaging on human skin.

Beyond MTV: Educating Problem-Solvers For The 21st Century
Today's students grew up with TV sets, VCRs and computers in their bedrooms, and we're simply not going to reach them with teaching techniques from the early 1900s,
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