5/19
Science & Technology
Decoding a material’s ‘memory’
Decoding a material’s ‘memory’
A new study details the relationship between particle structure and flow in disordered materials, insights that can be used to understand systems ranging from mudslides to biofilms.
Rapid adaptation in fruit flies
Rapid adaptation in fruit flies
New findings from School of Arts & Sciences biologists show that evolution—normally considered to be a gradual process—can occur in a matter of weeks in fruit flies in response to natural environmental change.
Sophie Bowe: Engineering undergrad and future ’imagineer’
Sophie Bowe: Engineering undergrad and future ’imagineer’
The senior in the School of Engineering and Applied Science took a natural curiosity in the mechanics of a Disney ride as a child and applies it to her current work as a teaching assistant in mechanical design and lab assistant in Penn’s Precision Machining Laboratory.
Newly identified softshell turtle lived alongside T. rex and Triceratops
Newly identified softshell turtle lived alongside T. rex and Triceratops
Peter Dodson of the School of Veterinary Medicine and Steven Jasinski, who recently earned his doctorate from the School of Arts & Sciences, describe the find of a new softshell turtle from the end of the Cretaceous Period.
Cyberattacks, Russia, and the changing face of war in the 21st century
Cyberattacks, Russia, and the changing face of war in the 21st century
Heli Tiirmaa-Klaar, a visiting fellow of Perry World House, shares her expertise in cybersecurity and how cyber methods are being utilized during the Russian invasion of Ukraine.
Four takeaways from the IPCC’s report on climate adaptation and vulnerability
Four takeaways from the IPCC’s report on climate adaptation and vulnerability
The assessment gets explicit about the effect of climate change on people, places, and ecosystems. Experts from Penn weigh in on what it means.
One drink a day linked with reduced brain size
One drink a day linked with reduced brain size
The Penn-led research, using a dataset of more than 36,000 adults, revealed that going from one to two drinks a day was associated with changes in the brain equivalent to aging two years. Heavier drinking was linked with an even greater toll.
COVID in a cat
COVID in a cat
A new report led by Elizabeth Lennon of the School of Veterinary Medicine and colleagues has confirmed what is believed to be the first published account of the delta variant of SARS-CoV-2 in a house cat.
Interaction with lung cells transforms asbestos particles
Interaction with lung cells transforms asbestos particles
To better understand what happens once asbestos enters a human body, researchers in the School of Arts & Sciences took a nanoscale look at the mineral.
SARS-CoV-2 is moving between humans and wildlife around the U.S.
SARS-CoV-2 is moving between humans and wildlife around the U.S.
In humans the pandemic is showing signs of ebbing. In white-tailed deer and other wildlife, however, infections appear widespread.
In the News
NBC News
Triceratops tussle: ‘Big John’ skull shows signs of battle, scientists say
Julie Engiles of the School of Veterinary Medicine commented on new research regarding triceratops anatomy, calling the team’s methodology “elegant and thorough.”
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Scientific American
Where rising seas threaten drinking water, scientists look for affordable solutions
Research led by Allison Lassiter of the Stuart Weitzman School of Design aims to identify water systems along the Atlantic and Gulf coasts that are vulnerable to saltwater intrusion. “Besides being unpleasant to drink, salinized water can harm vulnerable populations, including people with hypertension and pregnant women,” she said.
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The New York Times
Ty Haney is doing things differently this time
Kevin Werbach of the Wharton School said “web3,” a block-chain-centered iteration of the internet, won’t be as democratized or utopian as some believe. “There’s a web3 that’s out there which is wonderful and trying to make the world a better place, but just by labeling something web3, it doesn’t mean power dynamics will magically reverse,” Werbach said.
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WHYY (Philadelphia)
Got an idea to address the impacts of climate change along the Delaware? You could win money to make it happen
The Penn Program in Environmental Humanities’ Ecotopian Toolkit competition is soliciting proposals for tools to help the greater Philadelphia region address impacts of climate change. “One of the things that the project is really keen to develop is helping Philadelphians, and people really across the whole watershed, understand the ways that the water really connects to them and to their lives,” said Bethany Wiggin.
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Scientific American
Why some fluids flow slower when pushed harder
Paulo Arratia of the School of Engineering and Applied Science commented on a study that explored how fluids flow under different pressures. “Visualizing flow inside a 3-D porous media literally gives a window into something that was impossible to see,” he said. “If you could actually see the molecules stretching and recoiling, that would be wonderful [to] connect the molecular point of view to the microscopic.”
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Popular Science
Even dinosaurs couldn’t escape the sniffles
Ali Nabavizadeh of the School of Veterinary Medicine commented on research that found evidence of respiratory infections in dinosaurs. “This paper provides yet another piece of evidence to show just how modern dinosaurs—the birds—are biologically so similar to their extinct non-avian dinosaurian relatives, even to the point of showing similar diseases,” he said.
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ABC News
Why the global chip shortage threatens the economy, national security and Americans’ ‘status quo’
Morris Cohen of the Wharton School spoke about the semiconductor shortage. "Most consumers didn't know and didn't care where their chips came from: 'You turn the car on, it should go, I don't really care who made the chip and what country it was built in,'" he said. "But now, all of a sudden, these issues become really important, and so I think we become more sensitized to how dependent we are, how interdependent we are, how things can be disrupted."
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BuzzFeed.com
Congress is trying to figure out what to do about crypto’s colossal carbon footprint
Zane Griffin Talley Cooper, a doctoral candidate in the Annenberg School for Communication, said “proof of work” algorithms used to mine and trade cryptocurrencies need to be “intensely regulated.”
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The Guardian
The inner lives of cats: what our feline friends really think about hugs, happiness and humans
Carlo Siracusa of the School of Veterinary Medicine said cats are capable of bonding with people, contrary to claims that they’re merely using their owners for food and shelter. “Humans hug and kiss. Dogs become very excited and jump around. Cats don’t do anything like that. They are much more elegant,” he said. “They approach us. They bump their heads. Then they have some contact with us and walk away.”
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Wired
Can a digital reality be jacked directly into your brain?
Researchers led by Daniel Yoshor of the Perelman School of Medicine are developing better electrode arrays, which are used to induce neural activity. Current arrays approved for human use are bulky and contain around 1,000 electrodes, whereas the arrays Yoshor and colleagues are working on would have 64,000 electrodes, and eventually 1,000,000 electrodes.
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