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Science News Archive April 2011 - Page 12


Page 12 of 26

People know when first impressions are accurate

Researchers found that people do reasonably well at judging their own first impressions, with accuracy tied to moderate levels of confidence. The study suggests that most people are like most people, and that recognizing this similarity leads to more accurate perceptions.

SourceSAGE·JournalSocial Psychological and Personality Science·DateApr 14, 2011

New DNA nanoforms take shape

Researchers at Arizona State University have developed a method to construct arbitrary, two and three-dimensional shapes using DNA origami. The new technique allows for the creation of complex curvature in 3D nanostructures, enabling potential applications in ultra-tiny computing components and nanomedical devices.

SourceArizona State University·JournalScience·DateApr 14, 2011

Hydrocarbons in the deep earth

Researchers used computational simulations to explore hydrocarbon formation from methane under high pressure and temperature conditions. They found that hydrocarbons with multiple carbon atoms can form from methane at temperatures greater than 1,500 K and pressures 50,000 times those at the Earth's surface.

SourceDOE/Lawrence Livermore National Laboratory·JournalProceedings of the National Academy of Sciences·DateApr 14, 2011

Genes that control 'aging' steroid identified

Researchers have uncovered 8 genes that control the main steroid produced by the adrenal gland, which is believed to play a role in aging and longevity. The study found that these genetic regions are also associated with common age-related diseases, providing the first genetic evidence for the ageing role of the steroid.

SourceKing's College London·JournalPLOS Genetics·DateApr 14, 2011

Taking blood from Fukushima radiation workers in order to prepare for future stem cell transplants in case they are accidently exposed to high doses of radiation

Experts recommend collecting peripheral blood stem cells from Fukushima radiation workers to prepare for potential future stem cell transplants. This technique has several advantages over allogeneic transplantation, including reducing the risk of graft-versus-host disease and immunosuppression.

SourceThe Lancet_DELETED·JournalThe Lancet·DateApr 14, 2011