ScienceDaily Top Science Headlines
for Saturday, July 31, 2010
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Unexpected viral 'fossils' found in vertebrate genomes (July 30, 2010) -- Over millions of years, retroviruses, which insert their genetic material into the host genome as part of their replication, have left behind bits of their genetic material in vertebrate genomes. In a recent study, a team of researchers found that human and other vertebrate genomes also contain many ancient sequences from Ebola/Marburgviruses and Bornaviruses -- two deadly virus families. ... > full story
Plant compound resveratrol shown to suppresses inflammation, free radicals in humans (July 30, 2010) -- Resveratrol, a popular plant extract shown to prolong life in yeast and lower animals due to its anti-inflammatory and antioxidant properties, appears also to suppress inflammation in humans, based on results from the first prospective human trial of the extract. ... > full story
Snake venom studies yield insights for development of therapies for heart disease and cancer (July 30, 2010) -- Researchers seeking to learn more about stroke by studying how the body responds to toxins in snake venom are this week releasing new findings that they hope will aid in the development of therapies for heart disease and, surprisingly, cancer. ... > full story
Researchers find new translocation; weak spots in DNA lead to genetic disease (July 30, 2010) -- Pediatric researchers continue to discover recurrent translocations -- places in which two chromosomes exchange pieces of themselves, and can lead to genetic disease and disability. Originating in locations where DNA strands are prone to bending and breaking, this translocation between chromosomes 8 and 22 strengthens the possibility that unstable spots in the genome may reflect a general mechanism lurking in the structure of DNA. ... > full story
How not to blow up a molecule (July 30, 2010) -- Can single-shot imaging with femtosecond x-ray pulses from powerful new free electron lasers really work, or will the beam damage the sample too quickly? Pulse length is the key. A new study reveals that "frustrated absorption" explains why ultrashort pulses, even if their peak power is greater, do less damage to molecules than longer pulses. ... > full story
Brain potentials reveal spectator effect (July 30, 2010) -- The neurological responses caused by observing somebody else playing a game have been uncovered. Researchers found differing responses for neutral observers, compared to those who wished the player to fail and those who wanted to see the player succeed. ... > full story
Rocks on Mars may provide link to evidence of living organisms roughly 4 billion years ago (July 30, 2010) -- A new paper reveals groundbreaking research on the hydrothermal formation of Clay-Carbonate rocks in the Nili Fossae region of Mars. The findings may provide a link to evidence of living organisms on Mars, roughly 4 billion years ago in the Noachian period. ... > full story
Calcium supplements linked to increased risk of heart attack, study finds (July 30, 2010) -- Calcium supplements, commonly taken by older people for osteoporosis, are associated with an increased risk of a heart attack, a new study finds. ... > full story
Audubon's first engraving of a bird discovered (July 30, 2010) -- In 1824, John James Audubon (1785-1851), the eminent American artist, created a drawing of a running grouse for use in the design for a New Jersey bank note. Although the artist mentions the drawing and the resulting engraved paper money in two separate diary entries, no one has ever been able to locate or identify such an illustration. Until now. ... > full story
Resting brain activity associated with spontaneous fibromyalgia pain (July 30, 2010) -- A recent study provides the first direct evidence of linkage between elevated intrinsic (resting-state) brain connectivity and spontaneous pain intensity in patients with fibromyalgia. This research shows an interaction of multiple brain networks, offering greater understanding of how pain arises. ... > full story
Black carbon implicated in global warming (July 30, 2010) -- Increasing the ratio of black carbon to sulfate in the atmosphere increases climate warming, suggests a new study. ... > full story
Most youth hockey injuries caused by accidents, not checking, study shows (July 30, 2010) -- Hockey fans likely would assume that body-checking -- intentionally slamming an opponent against the boards -- causes the most injuries in youth ice hockey. But they would be wrong. ... > full story
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