ScienceDaily Top Science Headlines
for Saturday, November 1, 2008
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More Hidden Territory On Mercury Revealed By MESSENGER Spacecraft (October 31, 2008) -- A NASA spacecraft gliding over the battered surface of Mercury for the second time this year has revealed more previously unseen real estate on the innermost planet. The probe also has produced several science firsts and is returning hundreds of new photos and measurements of the planet's surface, atmosphere and magnetic field. ... > full story
Frequent Urination Protects Against Bladder Cancer, Study Finds (October 31, 2008) -- A new study has analyzed the effect of urinary frequency on the risk of bladder cancer. The research shows a direct association between the number of times people get up at night to urinate and protection against bladder cancer. ... > full story
Sniffing Out A Better Chemical Sensor (October 31, 2008) -- Marrying a sensitive detector technology capable of distinguishing hundreds of different chemical compounds with a pattern-recognition module that mimics the way animals recognize odors, researchers have created a new approach for 'electronic noses' that is more adept than conventional methodologies at recognizing molecular features even for chemicals it has not been trained to detect. ... > full story
Exercise Prevents Fatty Liver Disease, New Study Suggests (October 31, 2008) -- A new study indicates that the negative effects of skipping exercise can occur in a short period. The researchers found that a sudden transition to a sedentary lifestyle can quickly lead to symptoms of nonalcoholic fatty liver disease (hepatic steatosis), which affects at least 75 percent of obese people. ... > full story
New Model Predicts A Glacier's Life (October 31, 2008) -- Researchers have developed a numerical model that can re-create the state of Switzerland's Rhône Glacier as it was in 1874 and predict its evolution until the year 2100. This is the longest period of time ever modeled in the life of a glacier, involving complex data analysis and mathematical techniques. The work will serve as a benchmark study for those interested in the state of glaciers and their relation to climate change. ... > full story
Once Improbable James Bond Villains Now Close To Real Thing, Spy Researcher Says (October 31, 2008) -- Researchers say that the once improbable seeming villains in the Bond movies have become close to the real threats face faced by modern security services. One researcher said, "Remarkably, the Bond villains - including Dr No, Goldfinger and Blofeld - have always been post-Cold War figures. Bond's enemies are in fact very close the real enemies of the last two decades - part master criminal - part arms smuggler - part terrorist - part warlord." ... > full story
Extinct Sabertooth Cats Were Social, Found Strength In Numbers, Study Shows (October 31, 2008) -- The sabertooth cat, one of the most iconic extinct mammal species, was likely to be a social animal, living and hunting like lions today, according to new scientific research. The species is famous for its extremely long canine teeth, which reached up to seven inches in length and extended below the lower jaw of the cat. ... > full story
Gaining Too Much Weight During Pregnancy Nearly Doubles Risk Of Having A Heavy Baby (October 31, 2008) -- A study of over 40,000 women and their babies found that women who gained more than 40 pounds during their pregnancies were nearly twice as likely to have a heavy baby. The study found that more than one in five women gains excessive weight during pregnancy, doubling her chances of having a baby that weighs 9 pounds or more. ... > full story
Over-use Of Organic Fertilizers In Agriculture Could Poison Soils, Study Finds (October 31, 2008) -- Excessive doses of organic residues in agricultural fields could be dangerous for plants, invertebrates and micro-organisms living in the soil. This is the finding of a new study that shows that the use of appropriate levels of fertilizers would prevent this toxic impact on the soil biota. ... > full story
By Imaging Live Cells, Researchers Show How Hepatitis C Replicates (October 31, 2008) -- The hepatitis C virus is a prolific replicator, able to produce up to a trillion particles per day in an infected person by hijacking liver cells in which to build up its viral replication machinery. Now new research -- in which scientists have for the first time used fluorescent proteins to image hepatitis C virus replication in live cells -- shows that the microscopic viral factories are a diverse mix of big, immobile structures and tiny replication complexes that zip zanily around inside the cell. ... > full story
In Decision To Grow, Bacteria Follow The Crowd (October 31, 2008) -- When it comes to the decision to wake up and grow, bacterial spores "listen in" to find out what their neighbors are doing and then they follow the crowd, according to a new report. ... > full story
Three Effective Treatments For Childhood Anxiety Disorders (October 31, 2008) -- Treatment that combines a certain type of psychotherapy with an antidepressant medication is most likely to help children with anxiety disorders, but each of the treatments alone is also effective, according to a new study in the New England Journal of Medicine. ... > full story
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