ScienceDaily Top Science Headlines
for Sunday, July 24, 2011
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Fool's gold gives scientists priceless insight into Earth's evolution (July 23, 2011) -- Fool's gold is providing scientists with valuable insights into a turning point in the Earth's evolution, which took place billions of years ago. ... > full story
New target found for nitric oxide's attack on salmonella bacteria (July 23, 2011) -- A new target for nitric oxide has been revealed in studies of how it inhibits the growth of salmonella, a bacteria that is a common cause of food poisoning. Naturally produced in the nose and gut, nitric oxide interferes at various points in the Krebs cycle, the part of cellular respiration that turns fuel into energy. Knowing how nitric oxide restricts pathogen metabolism may lead to new antimicrobials or drugs that promote the body's own natural defenses. ... > full story
Shining a light on the elusive 'blackbody' of energy research: Designer material has potential applications for thermophotovoltaics (July 23, 2011) -- A designer metamaterial can engineer emitted "blackbody" radiation, a feat that transcends many of the limits governing natural materials and an advance that could potentially lead to the development of new thermophotovoltaic technologies, researchers report. ... > full story
Life scientists use novel technique to produce genetic map for African Americans (July 23, 2011) -- Scientists have produced one of the first high-resolution genetic maps for African-American populations. The new map will help disease geneticists who are working to map genetic diseases in African Americans. The map could help scientists learn the roots of diseases that occur in African Americans and to discover genes that play a key role in disease. ... > full story
Test for classifying force used in bottle stabbings: New study aids understanding of force required for creating injury (July 23, 2011) -- Engineers in the UK have for the first time created a way of measuring how much force is used during a stabbing using a broken bottle. The advance is expected to have significant implications for legal forensics. ... > full story
Positive teens become healthier adults: Adolescents with a sunny outlook on life may have better health in their adult years (July 23, 2011) -- Teenagers are known for their angst-ridden ways, but those who remain happy and positive during the tumultuous teenage years report better general health when they are adults, according to a new study. ... > full story
Inside the innards of a nuclear reactor: Tiny robots may monitor underground pipes for radioactive leaks (July 22, 2011) -- Scientists have develop robots equipped with cameras that can navigate the underground pipes of a nuclear reactor to check for corrosion by propelling themselves with internal networks of valves and pumps. ... > full story
How to combat hospital-acquired infections and life-threatening toxins (July 22, 2011) -- A team of scientists from Singapore has discovered the secret recipe for 'antidotes' that could neutralize the deadly plant toxin Ricin, widely feared for its bioterrorism potential, as well as the Pseudomonas exotoxin responsible for the tens of thousands of hospital-acquired infections in immune-compromised patients all over the world. ... > full story
Collaboration encourages equal sharing in children but not in chimpanzees (July 22, 2011) -- Children as young as three years of age share toy rewards equally with a peer, but only when both collaborated in order to gain them, according to new research. However, in a new study, chimpanzees did not show this connection between sharing resources and collaborative efforts. ... > full story
Quick test to diagnose bacterial or viral infection (July 22, 2011) -- Treating viral infections with antibiotics is ineffective and contributes to the development of antibiotic resistance, allergic reactions, toxicity and greater health care costs, researchers say. Currently tests take 24-48 hours and aren't always accurate enough for a clear-cut diagnosis. A new accurate and time-saving method has just been developed. ... > full story
Fingerprinting fugitive dust: Tracking soil microbes back to their source (July 22, 2011) -- Each community of soil microbes has a unique fingerprint that can potentially be used to track soil back to its source, right down to whether it came from dust from a rural road or from a farm field, according to a soil scientist. ... > full story
Can feeling too good be bad? Positive emotion in bipolar disorder (July 22, 2011) -- Positive emotions like joy and compassion are good for your mental and physical health, and help foster creativity and friendship. But people with bipolar disorder seem to have too much of a good thing. A new article explores how positive emotion may become negative in bipolar disorder. ... > full story
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