The University of Pennsylvania (Penn) was founded in 1740 by Benjamin Franklin and is the oldest private university in the United States. Today, Penn has nearly 20,000 undergraduate and graduate students. Ben Franklin was influenced by the European model for a multi-discipline approach in higher education. Penn is noted for the Wharton School of Business, Annenberg School for Communication, School of Medicine, School of Veterinary Medicine, School of Design and School of Engineering and Applied Science. Penn is ranked alongside Cal Tech for its selective admissions and quality of undergraduate students.
Penn researchers discover new chiral property of silicon, with photonic applications
By encoding information in photons via their spin, "photonic" computers could be orders of magnitude faster and efficient than their current-day counterparts. Likewise, encoding information in the spin of electrons, rather ...
Team shows a protein modification determines enzyme's fate
The human genome encodes roughly 20,000 genes, only a few thousand more than fruit flies. The complexity of the human body, therefore, comes from far more than just the sequence of nucleotides that comprise our DNA, it arises ...
Blacklegged tick populations have expanded via migration, biologists show
Lyme disease cases are on the rise, with diagnoses occurring in areas that were historically Lyme-free. Scientists attribute the spread to the fact that populations of blacklegged ticks, which carry the bacteria that causes ...
Nature, nurture, or physics? Researchers answer question about nematode behavior
Nature versus nurture is an age-old question in biology, centering on whether a given trait is determined by an organism's genes or by its environment. Most times the answer is "both," but research at the University of Pennsylvania ...
Researchers develop a new type of gecko-like gripper
Picking things up and putting them down is a mainstay of any kind of manufacturing, but fingers, human or robotic, are not always best for the task at hand.
Evolution is unpredictable and irreversible, biologists show
Evolutionary theorist Stephen Jay Gould is famous for describing the evolution of humans and other conscious beings as a chance accident of history. If we could go back millions of years and "run the tape of life again," ...
In social networks, group boundaries promote the spread of ideas, study finds
Social networks affect every aspect of our lives, from the jobs we get and the technologies we adopt to the partners we choose and the healthiness of our lifestyles. But where do they come from?
Engineers show how 'perfect' materials begin to fail
Crystalline materials have atoms that are neatly lined up in a repeating pattern. When they break, that failure tends to start at a defect, or a place where the pattern is disrupted. But how do defect-free materials break?
Researchers show how cells solve biochemical challenges as they get bigger
In any textbook diagram, a group of red blood cells, skin cells or nerve cells will typically be identical in size. But, just as no two people are quite the same height and weight, in a population of real cells there are ...
Research simplifies recycling of rare-earth magnets
Despite their ubiquity in consumer electronics, rare-earth metals are, as their name suggests, hard to come by. Mining and purifying them is an expensive, labor-intensive and ecologically devastating process.