A class of molecules called microRNAs may offer cancer patients two ways to combat their disease.
Researchers at Princeton University have found that microRNAs — small bits of genetic material capable of repressing the expression of certain genes — may serve as both therapeutic targets and predictors of metastasis, or a cancer’s spread from its initial site to other parts of the body. The research was published in the journal Cancer Cell. (more…)
PASADENA, Calif. — NASA’s Curiosity rover is revealing a great deal about Mars, from long-ago processes in its interior to the current interaction between the Martian surface and atmosphere.
Examination of loose rocks, sand and dust has provided new understanding of the local and global processes on Mars. Analysis of observations and measurements by the rover’s science instruments during the first four months after the August 2012 landing are detailed in five reports in the Sept. 27 edition of the journal Science. (more…)
The wide swings in debate performances by this year’s presidential candidates reflect the fact that in modern campaigns, a candidate’s image is the message, according to linguistic anthropologists who have studied presidential campaigns.
Candidates send important messages to voters through even their smallest gestures, the researchers say. For example, in this year’s first debate, President Barack Obama often looked down at the podium and was criticized for appearing disengaged. In subsequent debates Obama directly addressed his Republican opponent, former Massachusetts Gov. Mitt Romney, and increased the use of a hammering hand gesture sometimes called the “power grip.” (more…)
