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Science News for February 15, 2008


Does socializing make us smarter?

Research by Oscar Ybarra and colleagues found that social interaction enhances intellectual performance, suggesting that 'social interaction exercises' cognitive processes measured on tasks. People reap cognitive benefits from socializing, experiencing relatively immediate cognitive boosts.

SourceSAGE·JournalPersonality and Social Psychology Bulletin·DateFeb 15, 2008

Using HEPA filters may improve cardiovascular health

Researchers found that using HEPA filters for two days significantly improved microvascular function in healthy, non-smoking elderly individuals. The study suggests that indoor air filtration could be a feasible means of reducing cardiovascular risk by removing ultrafine, fine and coarse air particles.

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateFeb 15, 2008

Tumor-targeting viral therapy slows neuroblastoma, malignant peripheral nerve sheath tumors

Researchers developed a tumor-targeting viral therapy that slowed the growth of neuroblastoma and peripheral nerve sheath tumors by inhibiting tissue growth and reducing blood vessel formation. The treatment, called rQT3, showed promise in laboratory studies and improved life spans in mice with these types of tumors.

Mobile Neanderthals

A 40,000-year-old tooth reveals direct evidence of Neanderthal movement over lifetimes. The analysis of strontium isotope ratios in the enamel indicates that the individual lived in a different location than where the tooth was found.

SourceMax-Planck-Gesellschaft·JournalJournal of Archaeological Science·DateFeb 15, 2008