A novel bacterium — trapped three kilometers under glacial ice for over 120,000 years — may hold clues as to what life forms might exist on other planets.

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It was long believed that conception does not involve equals. The egg is a relatively large biological factory compared with the tiny sperm, which delivers to the egg one copy of the father’s genes. However, a new study reveals that the father’s sperm delivers much more complex genetic material than previously thought. The findings could [...]

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admin on June 15th, 2009

Those pesky graying hairs that tend to crop up with age really are signs of stress, reveals a new report.

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A genetic analysis of data from three studies suggests that genetically elevated levels of lipoprotein(a) are associated with an increased risk of heart attack, according to a new study.

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Graphene’s electrical properties include electrons so mobile they travel at near light speed. But without a bandgap, graphene’s promise for electronics and photonics can’t be realized. Now researchers can precisely tune a bandgap in bilayer graphene from zero to 0.25 eV, in the infrared energy region.

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A new study connects abnormalities of the “stress” hormone cortisol with symptoms of depression in obese children, and confirms that obesity and depression often occur together, even in children.

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Astronomers have discovered new tidal debris stripped away from colliding galaxies. New debris images are of special interest since they show the full history of galaxy collisions and resultant starburst activities, which are important in ‘growing’ galaxies in the early Universe.

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admin on June 15th, 2009

Researchers may have found a chink in the armor of the human immunodeficiency virus type 1 (HIV-1), the microorganism which causes AIDS.

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A new study shows that introducing a new hybrid of the American chestnut tree would not only bring back the all-but-extinct species, but also put a dent in the amount of carbon in the Earth’s atmosphere.

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Recent clinical trials show that a new colon cancer screening technique has a high enough sensitivity that it could potentially be as or more successful than a colonoscopy in screening for colon cancer.

Continue reading about Colon Cancer Screening Technique Shows Continued Promise In New Study