ScienceDaily Top Science Headlines
for Saturday, July 26, 2008
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Cow Power Could Generate Electricity For Millions (July 25, 2008) -- Converting livestock manure into a domestic renewable fuel source could generate enough electricity to meet up to three percent of North America's entire consumption needs and lead to a significant reduction in greenhouse gas emissions, according to U.S. research. ... > full story
Why Cigarette Smoke Makes Flu, Other Viral Infections Worse (July 25, 2008) -- A new study could explain why the cold and flu virus symptoms that are often mild and transient in non-smokers can seriously sicken smokers. The study also identified the mechanism by which viruses and cigarette smoke interact to increase lung inflammation and damage. ... > full story
It Takes Nerves For Flies To Keep A Level Head (July 25, 2008) -- The nerve connections that keep a fly's gaze stable during complex aerial maneuvers, enabling it to respond quickly to obstacles in its flight path, have been revealed in new detail. ... > full story
Gene Responsible For Rare Childhood Disease Identified (July 25, 2008) -- The chromosomal abnormality that causes a rare, but often fatal, disorder that affects infants has been identified by researchers who happened to treat two young children with the disease in San Diego -- two of perhaps a dozen children in the entire country diagnosed with the disorder. ... > full story
Various Species' Genes Evolve To Minimize Protein Production Errors (July 25, 2008) -- Genetic evolution is strongly shaped by genes' efforts to prevent or tolerate errors in protein production. Previously unexplained patterns of evolution may aim to prevent or tolerate mistranslation. ... > full story
Energy Drinks Linked To Risk-taking Behaviors Among College Students (July 25, 2008) -- Over the last decade, energy drinks -- such as Red Bull, Monster and Rockstar -- have become nearly ubiquitous on college campuses. Now new research validates and expands upon existing concerns about energy drink consumption. ... > full story
Exoplanet Orbiting Sun-like Star Discovered (July 25, 2008) -- Astronomers have discovered an exoplanet orbiting a star slightly more massive than the Sun. After just 555 days in orbit, the COROT mission has now observed more than 50 000 stars and is adding significantly to our knowledge of the fundamental workings of stars. ... > full story
Older People May Need Less Sleep, Study Finds (July 25, 2008) -- Along with all the other changes that come with age, healthy older people also lose some capacity for sleep. When asked to stay in bed for 16 hours in the dark each day for several days, younger people get an average of 9 hours of shuteye compared to 7.5 for older people, the researchers report. ... > full story
Bacteria Fight Back: Biofilms Use Chemical Weapons To Neutralize Or Kill Attacking Amoebae (July 25, 2008) -- Biofilms develop on any surface that bacteria can attach themselves to. The dilemma we face is that neither disinfectants and antibiotics, nor phagocytes and our immune system can destroy these biofilms. Scientists have now identified one of the fundamental mechanisms used by the bacteria in biofilms to protect themselves against the attacking phagocytes. ... > full story
Broken DNA Must Find Right Partners Quickly Amid Repairs (July 25, 2008) -- Just as square dance partners join hands at a particular point in the music, so broken pieces of DNA in our cells reunite as they are repaired. Precisely and quickly, these DNA pieces identify each other and tether together. A tumor-suppressor gene called ATM choreographs this fast-paced, but reliable, reassembly operation. ... > full story
Tracking Down Origin Of Matter And Antimatter (July 25, 2008) -- In science fiction stories it is either the inexhaustible energy source of the future or a superweapon of galactic magnitude: antimatter. In fact, antimatter can neither be found naturally in any abundance on Earth nor in space, is extremely complex to produce and thus difficult to study. In order to track down the origin of matter and antimatter in the universe, scientists are measuring the power of the electrical dipole moment of neutrons, which represents a measure for the different physical properties of matter and antimatter. ... > full story
Frequent Family Meals Might Reduce Teen Substance Use (July 25, 2008) -- Parents who have regular meals with their adolescent children might help lessen the chances they will start drinking or smoking later in their teen years, according to new research. Researchers noted benefits in families that ate five or more meals together each week, and found that about 60 percent of the participants did so. ... > full story
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