A bio patch that can regrow bone Potential uses for dental, from implants to craniofacial defects Researchers at the University of Iowa have created a bio patch to regenerate missing or damaged bone by putting DNA into a nano-sized particle that delivers bone-producing ...

Grandiose narcissism reflects US presidents' bright and dark sides Narcissus, the physically flawless character of Greek mythology who wound up falling in love with his own reflection, hardly seems like a good role model. For those dreaming of becoming president ...

Carnegie Mellon researchers use inkblots to improve security of online passwords GOTCHA scheme could foil growing problem of automated brute force attacks PITTSBURGH—Carnegie Mellon University computer scientists have developed a new password system that incorporates ...

Researchers regrow hair, cartilage, bone, soft tissues Enhancing cell metabolism was an unexpected key to tissue repair Young animals are known to repair their tissues effortlessly, but can this capacity be recaptured in adults? A new study from researchers ...

Calcium and vitamin D improve bone density in patients taking antiepileptic drugs A recent prospective, randomized, placebo-controlled clinical trial reports that calcium and vitamin D supplementation improves bone density in a group of male veterans with epilepsy who were treated ...

Obesity may limit overall function 2 years after shoulder replacement surgery Obesity does not significantly impact short-term complications, outcomes Rosemont, Ill. –Patients with obesity undergo a disproportionately higher number of elective ...

Blocking the active site of thiolase This news release is available in German. Scientists at the University of Oulu, Finland, and at the Helmholtz Center Berlin (HZB) have shown the way to new directions ...

Online course improves physicians skill level for detecting skin cancer DETROIT – Primary care physicians who took an online training course about skin cancer detection significantly improved their skill to properly diagnose and manage benign and malignant ...

Vitamin C could ease muscle fatigue in chronic obstructive pulmonary disease patients Bethesda, Md. (Nov. 7, 2013)—Chronic obstructive pulmonary disease—a health problem in which the lungs lose their inherent springiness, making it progressively harder to breathe—can ...

1 worm, 2 mouths A devious evolutionary path between genetics and environment Depending on the environment in which the worm grows, the larva of the roundworm Pristionchus pacificus develops into either a wide-mouthed predator or a narrow-mouthed bacteria ...

Crown of Venezuelan paramos: A new species from the daisy family, Coespeletia palustris A joint research led by the Smithsonian Institution (US), Saint Louis University (US) and Universidad de Los Andes (Venezuela) resulted in the discovery of an exciting new species from ...

For obese teen girls, aerobic exercise may trump resistance training in health benefits Bethesda, Md. (Nov. 7, 2013)—Obesity has more than doubled in children and tripled in adolescents in the United States in the past 30 years, according to the Centers for Disease Control ...

When is a comet not a comet? Hubble astronomers observe bizarre 6-tailed asteroid Astronomers using the NASA/ESA Hubble Space Telescope have observed a unique and baffling object in the asteroid belt that looks like a rotating lawn sprinkler or badminton ...

If a tree falls in Brazil…? Amazon deforestation could mean droughts for western US In research meant to highlight how the destruction of the Amazon rainforest could affect climate elsewhere, Princeton University-led researchers report that the total deforestation ...

Oxygen levels in tumors affect response to treatment The genetic make-up of a patient's tumor could be used to personalize their treatment, and help to decide whether they would benefit from receiving additional drugs as part of their radiotherapy ...

Alcohol-related aggression: Social and neurobiological factors One-third of all acts of violence are perpetrated under the influence of alcohol. They give rise not only to personal suffering, but also to socio-economic costs. What are the causes of alcohol-related ...

Potential for added medical benefits uncovered for widely used breast cancer drug Lab tests show it protects cells from UV radiation, inflammation and oxidative damage Exemestane, a synthetic steroid drug widely prescribed to fight breast cancers that thrive on estrogens, ...

'Diabetic flies' can speed up disease-fighting research Fruit flies make good stand-ins for humans in diabetes treatment tests, UMD study finds COLLEGE PARK, Md - In a finding that has the potential to significantly speed up diabetes research, scientists at the University ...

Children who have autism far more likely to have tummy troubles The gastrointestinal problems are linked to problem behaviors in children with autism, developmental delay Children with autism experience gastrointestinal (GI) ...

Speaking a second language may delay different dementias MINNEAPOLIS – In the largest study on the topic to date, research shows that speaking a second language may delay the onset of three types of dementias. The research is published in the November 6, 2013, ...

Floods didn't provide nitrogen 'fix' for earliest crops in frigid North Floods didn't make floodplains fertile during the dawn of human agriculture in the Earth's far north because the waters were virtually devoid of nitrogen, unlike other areas of the globe scientists ...

Monkeys use minds to move 2 virtual arms DURHAM, N.C. – In a study led by Duke researchers, monkeys have learned to control the movement of both arms on an avatar using just their brain activity. The findings, published Nov. 6, 2013, in the ...

X-rays reveal inner structure of the Earth's ancient magma ocean First look into molten basalt at deep mantle conditions This news release is available in German. Using the world's most brilliant X-ray source, scientists have for the first ...

Stress makes snails forgetful Snail study reveals that stress is bad for memory New research on pond snails has revealed that high levels of stress can block memory processes. Researchers from the University of Exeter and the University of Calgary trained snails ...

Annual car crash deaths in England and Wales have fallen 40 percent in 50 years But may still contribute to social class and gender differences in life expectancy The annual number of car crash deaths in England and Wales has plunged by 41% over the past ...