Natural Science

7

Aggressive Invasive Plant Crowds Bucks Reservoir

August 9, 2011

Timothy Block of the Morris Arboretum comments on an invasive plant species.

The Ethics of Synthetic Biology: Guiding Principles for Emerging Technologies

August 1, 2011

President Amy Gutmann discusses the Presidential Commission for the Study of Bioethical Issues’ report on synthetic biology.

Article Source: Hastings Center Report

The Puzzle of Plant-Pollinator Interactions

July 28, 2011

Doctoral student Daniel Song of the School of Arts and Sciences blogs about how plants and pollinators form interaction networks.

Article Source: New York Times
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Media Contact:Evan Lerner | elerner@upenn.edu | 215-573-6604July 29, 2011

Penn Chemists Make First Molecular Binding Measurement of Radon

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.

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Media Contact:Evan Lerner | elerner@upenn.edu | 215-573-6604July 25, 2011

Penn Researchers Help Graft Olfactory Receptors onto Nanotubes

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.  

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Media Contact:Jill DiSanto-Haines | jdisanto@upenn.edu | 215-898-4820July 22, 2011

Penn Study Examines Safe Access to Clean Water in Low-Income Countries

PHILADELPHIA — Susan B. Sorenson, a professor at the University of Pennsylvania School of Social Policy & Practice, has teamed up with Philadelphia Global Water Initiative, along with the Penn School of Nursing, to study water fetching and the need for access to clean water in developing nations.

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Media Contact:Evan Lerner | elerner@upenn.edu | 215-573-6604July 22, 2011

Penn: Nanoplasmonic ‘Whispering Gallery’ Breaks Emission Time Record in Semiconductors

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.  

It’s a Stressful Job Being the Alpha Male Baboon

July 18, 2011

Robert Seyfarth of the School of Arts and Sciences comments on alpha male baboons.

Article Source: Philadelphia Inquirer

Pumpkin Pie: Provocative or Just Tasty?

July 13, 2011

Johan Lundstrom of the School of Arts and Sciences says, “In almost all species, it’s the female who is picking her partner.”

Article Source: New York Times

Baboon Study Shows Benefits for Nice Guys, Who Finish 2nd

July 14, 2011

Robert Seyfarth of the School of Arts and Sciences comments on study of alpha male baboons.

Article Source: New York Times