Ralph Rosen of the School of Arts and Sciences comments on admission committees interpreting the new GRE scoring system.
School of Arts & Sciences
Philip Tetlock of the Wharton School and the School of Arts and Sciences notes that intelligence agencies employ scientists to try to predict the behavior of foreign leaders and terrorists, and that their track record has been mixed.
PHILADELPHIA — Even in trace quantities, the radioactive gas radon is very dangerous; it is second only to cigarette smoking as a cause of lung cancer deaths in the United States.
PHILADELPHIA — Penn researchers have helped develop a nanotech device that combines carbon nanotubes with olfactory receptor proteins, the cell components in the nose that detect odors.
Because olfactory receptors belong to a larger class of proteins that are involved in passing signals through the cell membrane, these devices could have applications beyond odor sensing, such as pharmaceutical research.
Richard Ingersoll of the Graduate School of Education and the School of Arts and Sciences comments on the shortage of math and science teachers.
PHILADELPHIA — Renaissance architects demonstrated their understanding of geometry and physics when they built whispering galleries into their cathedrals. These circular chambers were designed to amplify and direct sound waves so that, when standing in the right spot, a whisper could be heard from across the room. Now, scientists at the University of Pennsylvania have applied the same principle on the nanoscale to drastically reduce emission lifetime, a key property of semiconductors, which can lead to the development of new ultrafast photonic devices.
Anthea Butler of the School of Arts and Sciences comments on the polarized reactions to Republican presidential candidate Michelle Bachmann.