ScienceDaily Environment Headlines
for Saturday, September 27, 2008
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Want Better Mileage? Simple Device Which Uses Electrical Field Could Boost Gas Efficiency Up To 20% (September 26, 2008) -- A simple device which attaches to a vehicles fuel line near the fuel injector and creates an electrical field could boost gas efficiency as much as 20 percent. ... > full story
Animals Farmed For Meat Are The No. 1 Source Of Food Poisoning Bug, Study Shows (September 26, 2008) -- A study, based on DNA-sequence comparison of thousands of bacterial samples collected from human patients and animal carriers, found that 97 percent of campylobacteriosis cases sampled in Lancashire, UK, were caused by bacteria typically found in chicken and livestock. ... > full story
Australian Frog Species Chooses Not To Put Eggs In One Basket (September 26, 2008) -- A new study into the mating and nesting practices of a common Australian frog has found they partner up to eight males sequentially -- the highest recorded of any vertebrate. ... > full story
New More Efficient Ways To Use Biomass (September 26, 2008) -- Researchers have developed a new catalyst that directly converts cellulose, the most common form of biomass, into ethylene glycol, an important intermediate product for chemical industry. ... > full story
Earth's Magnetic Field Reversals Illuminated By Lava Flows Study (September 26, 2008) -- Earth's north magnetic pole is shifting and weakening. Ancient lava flows are guiding a better understanding of what generates and controls the Earth's magnetic field -- and what may drive it to occasionally reverse direction. Current evidence suggests we are now approaching a transitional state because the main magnetic field is relatively weak and rapidly decreasing, researchers say. While the last polarity reversal occurred several hundred thousand years ago, the next might come within only a few thousand years. ... > full story
Scientists Unmask Key HIV Protein, Open Door For More Powerful AIDS Drugs (September 26, 2008) -- Scientists have provided the most detailed picture yet of a key HIV accessory protein that foils the body's normal immune response. Based on the findings, the team is searching for new drugs that may someday allow infected people to be cured and no longer need today's AIDS drugs for a lifetime. ... > full story
Photonic Crystal Biosensors Detect Protein-DNA Interactions (September 26, 2008) -- Scientists have developed a new class of disposable, microplate-based optical biosensors capable of detecting protein-DNA interactions. Based on the properties of photonic crystals, the biosensors are suitable for the rapid identification of inhibitors of protein-nucleic acid and protein-protein interactions. ... > full story
Pigs Bred With Cystic Fibrosis Provide Model To Mimic Human Disease (September 26, 2008) -- Cystic fibrosis continues to be a lethal disease for humans despite the identification of the problematic gene two decades ago. Many humans born with CF -- the most common genetic disease in Caucasians -- often die because of a lung disease developed later. Scientists have been unable to develop an animal model that develops the fatal lung disease. Now, one researcher is producing pigs born with cystic fibrosis that mimic the exact symptoms of a newborn with CF. ... > full story
100-year-old Engineering Problem Solved: Insights On Fluid Flow Could Impact Fuel Efficiency (September 26, 2008) -- As a car accelerates up and down a hill then slows to follow a hairpin turn, the airflow around it cannot keep up and detaches from the vehicle. This aerodynamic separation creates additional drag that slows the car and forces the engine to work harder. The same phenomenon affects airplanes, boats, submarines, and even your golf ball. ... > full story
Oldest Known Rocks On Earth Discovered: 4.28 Billion Years Old (September 26, 2008) -- The discovery of rocks as old as 4.28 billion years pushes back age of most ancient remnant of Earth's crust by 300 million years. Researchers have discovered the oldest rocks on Earth -- a discovery which sheds more light on our planet's mysterious beginnings. These rocks, known as "faux-amphibolites," may be remnants of a portion of Earth's primordial crust -- the first crust that formed at the surface of our planet. ... > full story
Bats Pick Up Rustling Sounds Against Highway Background Noise (September 26, 2008) -- When bats go hunting by listening for faint rustling sounds made by their quarry on a quiet night they don't have any problems. But what happens when a bat goes foraging next to a noisy highway? Can they still hear the faint sounds? ... > full story
Differences Between People And Animals On Calorie Restriction (September 26, 2008) -- Calorie restriction, a diet that is low in calories and high in nutrition, may not be as effective at extending life in people as it is in rodents, according to scientists. ... > full story
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