- About Us
- News & Events
- Faculty & Research
- Degrees & Programs
- Supporting SAS
Frontiers - Nature
Graduate student Peter Yunker sheds light on the mystery of aging glass.Priya Ratneshwar
Glasses have been used for thousands of years, but some of the fundamental properties of these common household and industrial materials still remain unexplained. One such puzzle is why glasses become more viscous and rigid over time without major changes to their structure—a phenomenon known as aging. A new study conducted by physics doctoral student Peter Yunker, James M.
College student Sourav Bose works to improve emergency response care in Guatemala.Priya Ratneshwar
Sourav Bose, C’11, W’11, has been working with emergency medical services since he was in high school. He volunteered with the local ambulance corps in his suburban New Jersey hometown, and at Penn he is a member of the Medical Emergency Response Team, a student-run service organization that provides emergency medical services to the University community.
Psychologists Peter DeScioli and Robert Kurzban propose a new theory of human friendship.B. Davin Stengel
If you’ve ever designated your “top friends” on MySpace, Facebook or another social networking website, you may have done more than give a nod to your favorite people on that particular platform.
Biologist Peter Petraitis and team discover rapid increases in shell size in the Atlantic dogwhelk.Priya Ratneshwar
Nucella lapillus, the Atlantic dogwhelk, is one of the best known and most widely studied organisms in the North Atlantic Ocean. Yet until now, no one had noticed that over the past century shell lengths of these sea snails have increased in size by an average of 22.6 percent.
Physicist Andrea Liu discusses research into how systems of particles transition to jammed states.B. Davin Stengel
In collaboration with her colleagues in the physics department and researchers at the University of Chicago, Andrea Liu is trying to understand how certain systems of particles come to behave like solids when they jam.
Penn psychologists identify neural correlates of visual and verbal cognitive styles.B. Davin Stengel
In the lab of Class of 1965 Endowed Term Professor of Psychology Sharon Thompson-Schill, the range of topics being studied is fairly broad, but one overarching theme, she explains, is an attempt to better understand differences between people.
Cosmologist Mark Devlin uses balloon-borne telescope to find the source of half the light in the universe.Peter Nichols
Just before Christmas in 2006, Mark Devlin, the Reese W. Flower Professor of Astronomy and Astrophysics, led a team of scientists to launch a telescope that would scrutinize the heavens in search of primeval galaxies at the far reaches of the universe.
Graduate student Annalise Paaby studies how natural selection affects lifespan in fruit flies.Priya Ratneshwar
Scientists have long known that genes play an important role in lifespan and longevity, and they have made significant progress in understanding the complex genetic mechanisms of aging. Evolutionary geneticists are now building on these discoveries to see if there is an adaptive component to life span.
Scientist Sarah Tishkoff pulls together a database of African populations—one DNA sample at a time.Peter Nichols
“Africa is one of the most genetically diverse regions of the world,” observes scientist Sarah Tishkoff. “It’s thought to be the site of origin of modern humans. So if we want to learn more about human evolution, we need to be looking amongst African populations.”
Undergraduate Benjamin Laitman looks at the microarchitecture of sleep with fear conditioning.B. Davin Stengel
While everyone may be personally familiar with the phenomenon of sleep, few of us understand what transpires in our own brains between lights out and the sound of the morning alarm. More than the absence of wakefulness or a period of rest, sleep is a complex brain state of great interest to scientists and medical practitioners working in a variety of fields.
School of Arts & Sciences Office of Advancement
If you would like to contact someone about this or any other issue of Frontiers, please email: