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.
Therese Richmond of the School of Nursing is cited for her research on predicting post-traumatic stress disorder and depression in injury patients.
Years after a single traumatic brain injury (TBI), survivors still show changes in their brains. In a new study, researchers from the Perelman School of Medicine at the University of Pennsylvania suggest that Alzheimer's disease-like neurodegeneration may be initiated or accelerated following a single traumatic brain injury, even in young adults.
New Global Model of Alzheimer’s Risk Suggests a 25 Percent Reduction in Presumed Risk Factors Could Lower Alzheimer’s Cases by 3 Million Worldwide
Susanne Steinberg of the Perelman School of Medicine is cited for her research on Alzheimer’s risk factors.
Arthur Caplan of the Perelman School of Medicine contributes his views on scientists being bullied by stem cell clinics.
Robert Seyfarth of the School of Arts and Sciences comments on study of alpha male baboons.
PHILADELPHIA — Almost everyone has experienced one memory triggering another, but explanations for that phenomenon have proved elusive. Now, University of Pennsylvania researchers have provided the first neurobiological evidence that memories formed in the same context become linked, the foundation of the theory of episodic memory.