Science & Technology

Displaying 1 - 10 of 692 articles
Penn Chemists Develop Motion Capture-like Technology for Tracking Protein Shape
February 12, 2018
In many modern animated movies, the trick to achieving realistic movements for individual characters and objects lies in motion-capture technology. This process often involves someone wearing a tracking suit covered in small, colored balls while a camera captures the position of those colored balls, which is then used to represent how the person is moving.
Penn Researchers Prove That Precisely Timed Brain Stimulation Improves Memory
February 6, 2018
The Restoring Active Memory program, led by Michael Kahana of the School of Arts and Sciences, is one step closer to its goal of creating a fully implantable neural monitoring and stimulation system. The team, which includes researcher Youssef Ezzyat, has shown that precisely timed electrical stimulation to the left side of the brain can reliably and significantly enhance learning and memory performance by as much as 15 percent.
Penn Vet Study Uncovers Therapeutic Targets for Aggressive Triple-negative Breast Cancers
February 2, 2018
As part of a breast-cancer diagnosis, doctors analyze the tumor to determine which therapies might best attack the malignancy. But for patients whose cancer is triple-negative — that is, lacking receptors for estrogen, progesterone and Her2 — the options for treatment dwindle. Triple-negative cancers, or TNBC, also tend to be more aggressive than other cancer subtypes.
Penn Engineering Research Gives Optical Switches the ‘Contrast’ of Electronic Transistors
January 26, 2018
Current computer systems represent bits of information — the 1’s and 0’s of binary code — with electricity. Circuit elements, such as transistors, operate on these electric signals, producing outputs that are dependent on their inputs.
Penn Engineers Make First Full Network Model of the Musculoskeletal System
January 18, 2018
Network science examines how the actions of a system’s individual parts affect the behavior of the system as a whole. Some commonly studied networks include computer chip components and social media users, but University of Pennsylvania engineers are now applying network science to a much older system: the human body.
Improvements in Mortality Rates Are Slowed by Rise in Obesity in the United States
January 15, 2018
With countless medical advances and efforts to curb smoking, one might expect that life expectancy in the United States would improve. Yet according to recent studies, there’s been a reduction in the rate of improvement in American mortality during the past three decades. According to a new study published in the Proceedings of the National Academy of Sciences, a rise in obesity is to blame.
Penn-led Team Uncovers the Physiology Behind the Hour-long Mating Call of Midshipman Fish
January 12, 2018
According to the Guinness World Records, the longest any person has held a continuous vocal note is just shy of two minutes. That’s quite an achievement. Compared to the Pacific midshipman fish, however, the endurance of the human vocal cord is no match. Midshipman fish can generate a mating call that emits continuously from their bodies for a full hour.
By Altering Bone Marrow, ‘Training’ Can Prepare Innate Immune System for Future Challenges
January 11, 2018
When you receive a vaccine against a disease like polio or influenza, your immune system gears up to defend against that particular infection. If you wind up getting chickenpox instead, or even a slightly different strain of the flu, you would be out of luck. That’s because traditional vaccines enlist the adaptive immune system, the functions of which are carried out largely by hyperspecific T and B cells, each targeted to a particular threat.
With a $450,000 Air Force Grant, Penn Physicist Will Shed Light on an Emerging Field in Physics
January 5, 2018
Bo Zhen, an assistant professor of physics in the School of Arts and Sciences at the University of Pennsylvania, has been awarded a Young Investigator Grant from the Air Force Office of Scientific Research.