Researchers find model system to study promising cancer drug - Researchers have found that the budding yeast is an acceptable model system to study KP1019, an anti-cancer drug that uses ruthenium, a rare metal, a new study found http://www.sciencedaily.com/releases/2012/12/121218143031.htm.

Magnesium oxide: From Earth to super-Earth - The mantles of Earth and other rocky planets are rich in magnesium and oxygen. Due to its simplicity, the mineral magnesium oxide is a good model for studying the nature of planetary interiors. New work from a team led by Carnegie's Stewart McWilliams studied how magnesium oxide behaves under the extreme conditions deep within planets and found evidence that alters our understanding of planetary evolution.(10.1126/science.1229450)

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