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Environmental Conservation

Alaskan Puzzles: New Insights into North Pacific Salmon Runs

The University of Washington Alaska Salmon Program, the world’s longest-running effort to monitor salmon and their ecosystems, has received nearly $2.4 million from the Gordon and Betty Moore Foundation to expand its sampling scope and sophistication.

The Alaska-based program has applications for Pacific salmon all along the West Coast, providing insights into the fluctuating fortunes of salmon runs and their management.

The grant boosts research into climate and other

Power and Electrical Engineering

New Evidence for Sonofusion: Advances in Bubble Power

In 2002, nuclear engineers Rusi P. Taleyarkhan of Purdue University and Richard T. Lahey Jr. of Rensselaer Polytechnic Institute announced that they had produced thermonuclear fusion by imploding tiny deuterium-rich gas bubbles with sound waves and neutrons. The news about their fusion method–dubbed sonofusion–made headlines worldwide. Yet many skeptics greeted it with scoffing. Now, after repeating the experiments with an improved apparatus, Taleyarkhan and Lahey have more convincing evidence

Physics & Astronomy

Cassini’s Radar And Vims Instruments Eye Impact Crater On Titan

The Cassini spacecraft has seen a 50-mile-diameter impact crater on Titan with different instruments on separate flybys, giving scientists new information on impact-crater formation on Saturn’s giant moon.

They’ve released a composite image of one of Titan’s most prominent impact craters as previously seen by Cassini’s radar and recently seen by its Visual and Infrared Mapping Spectrometer (VIMS).

The composite image is online at

Health & Medicine

OHSU Study: Ginkgo Biloba Eases MS Symptoms Naturally

Many patients already take herbal supplement available over counter

When it comes to her health, Janice Winfield of Portland, Ore., does her research. That’s why the stay-at-home mom, who was diagnosed with multiple sclerosis in July 2000, was willing to turn to popular, over-the-counter herbal supplements like ginkgo biloba to deal with memory problems, fatigue and occasional muscle pain.

“I’m definitely interested in alternative medicine,” said Winfield, 49, whose for

Health & Medicine

Cassini Reveals Swiss-Cheese Surface of Saturn’s Epimetheus

An image of Saturn’s small moon, Epimetheus (epp-ee-MEE-thee-uss), was captured by the Cassini spacecraft in the closest view ever taken of the pockmarked body.

Epimetheus is irregularly shaped and dotted with soft-edged craters. The many large, softened craters on Epimetheus indicate a surface that is several billion years old. The moon shares an orbit with another of Saturn’s small moons, Janus. The two dance in a planetary tango as they move in almost identical orbits, exchang

Communications Media

Distracting Visuals on TV Screen Impact Viewer Retention

No matter which channel you turn to on television, you are likely to find some kind of visual element that seems to overpower the screen — making it difficult to focus on one thing.

In the past few years, television stations have begun to reformat their screen presentations to include scrolling screens, sports scores, stock prices and current weather news. These visual elements are all designed to give viewers what they want when they want it.

However, Kansas State Univ

Health & Medicine

Shorter Fasting Before Surgery Benefits Children, Study Finds

Children facing surgery can be made more comfortable with little risk by allowing them to have certain liquids up to two hours before the operation, a new review of recent studies has found.

Like adults, children are often required to go without food or drink up to a half-day before surgery to prevent their stomach contents from being regurgitated or sucked into the lungs under general anesthesia. In the review of 43 randomized controlled trials involving 2,350 children, only one

Life & Chemistry

New Insights Into Cold Sensation: Molecular Mechanism Revealed

Findings demonstrate mechanism used by numerous membrane proteins throughout the body – opens pathway to new areas of exploration

Mount Sinai School of Medicine researchers have discovered how the membrane protein that allows us to sense cold works and how this protein becomes desensitized so that one no longer feels the cold. The study, published this week as an advance online publication by Nature Neuroscience, focused on a specific region of the cold receptor which is found

Health & Medicine

WIC Program Update: Key Changes for Healthier Nutrition Options

A new report from the Institute of Medicine of the National Academies proposes a number of changes to the WIC nutrition assistance program to encourage participants to consume more whole grains, fruits, and vegetables, as well as to promote breast-feeding, among other goals. If implemented, these revisions would be the most substantial changes to the mix of foods offered through WIC since the supplemental nutrition program for low-income women, infants, and children was launched in 1974. The reco

Health & Medicine

New Guidelines for Screening Kidney Disease in HIV Patients

The HIV Medicine Association has released guidelines for managing chronic kidney disease in patients living with HIV infection. They are published in the June 1 issue of Clinical Infectious Diseases, now available online.

The guidelines are the first of their kind. They recommend screening for kidney disease at the time of HIV diagnosis to identify early this serious complication of HIV infection.

Nearly one-third of HIV-infected patients have abnormal amounts of prot

Power and Electrical Engineering

Harvard’s Breakthrough in High-Speed Nanowire Circuitry

Low-temperature fabrication and high-quality results could reduce electronics’ reliance on silicon

Chemists and engineers at Harvard University have made robust circuits from minuscule nanowires that align themselves on a chip of glass during low-temperature fabrication, creating rudimentary electronic devices that offer solid performance without high-temperature production or high-priced silicon.

The researchers, led by chemist Charles M. Lieber and engineer Donhee

Health & Medicine

RSV: A Hidden Threat to the Elderly and High-Risk Adults

Respiratory syncytial virus (RSV), primarily seen as a cause of illness in infants and children, often affects the elderly and high-risk adults as much as influenza, a study by University of Rochester Medical Center researchers demonstrates.

Although pediatricians are well aware of RSV, most internists rarely consider RSV in adult patients. However, an estimated 14,000 elderly and high-risk adults die annually from an RSV infection, according to research by Ann R. Falsey, M.D.,

Life & Chemistry

Discovery of a ’molecular switch’ could lead to new ways of treating infection, including MRSA

The discovery of a ’molecular switch’ could lead to new ways of treating infections such as MRSA, and inflammatory diseases like arthritis.

According to research published today in Nature, the team from Imperial College London and the University of California, San Diego, have identified an enzyme called IKKá, which can act as a ’brake’ on an immune cell pathway responsible for regulating the body’s response to infection and inflammation.

By

Life & Chemistry

Wisconsin Team Discovers Sleep Gene’s Impact on Fruit Flies

Zeroing in on the core cellular mechanisms of sleep, researchers at University of Wisconsin Medical School have identified for the first time a single gene mutation that has a powerful effect on the amount of time fruit flies sleep.

In its normal state, the Drosophila (fruit fly) gene, called Shaker, produces an ion channel that controls the flow of potassium into cells, a process that critically affects, among other things, electrical activity in neurons. A handful of recent

Environmental Conservation

Study Reveals Need for Better Protection of Atlantic Bluefin Tuna

A team of marine scientists has mapped the undersea journeys of Atlantic bluefin tuna and concluded that tighter restrictions should be placed on commercial fishing to protect the feeding and breeding grounds of this top migratory predator–one of the most commercially valuable fish in the sea.

Researchers from Stanford University and the Monterey Bay Aquarium say that their new study, published in the April 28 edition of the journal Nature, offers substantial evidence that signi

Life & Chemistry

UCSD medical researchers show protein’s role in stopping bacterial-induced inflammation

In findings that could have implications for autoimmune disorders and drug-resistant bacterial infections, researchers at the University of California, San Diego (UCSD) School of Medicine have identified a key protein involved in the appropriate shut-down of inflammation following an immune response to invading pathogens.

Published in the April 28, 2005 issue of the journal Nature, the study in mice and lab cultures of immune cells called macrophages showed that a protein c

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