9.30
Science & Technology
The joys and trials of defending a dissertation virtually
The joys and trials of defending a dissertation virtually
When most aspects of university life moved online because of COVID-19, so, too, did the thesis defense for Ph.D. candidates. Despite some challenges, the shift had unexpected benefits.
Stimulating immune cleanup crew offers affordable possibility for treating rare genetic disorder
Stimulating immune cleanup crew offers affordable possibility for treating rare genetic disorder
Compounds that mimicked the process known as efferocytosis alleviated signs of leukocyte adhesion deficiency type-1 in an animal model, according to work led by the School of Dental Medicine’s George Hajishengallis
Understanding the ‘fundamental nature’ of atomic-scale defects
Understanding the ‘fundamental nature’ of atomic-scale defects
New research provides a deeper mathematical understanding of the dynamics of a material’s atomic-level defects, which could enable new ways to imbue substances with unique and desirable properties.
Life, death, and the Amazonian litter layer
Life, death, and the Amazonian litter layer
Kristina Lyons’ new book explores the Colombian world of litter layers, seeds, and soils; Amazonian farmers, narcos, and the War on Drugs
Using stress to shape microlevel structures
Using stress to shape microlevel structures
A new study describes how external forces drive the rearrangement of individual particles in disordered solids, enabling new ways to imbue materials with unique mechanical properties.
A shaky future for U.S. transit systems, and why we need to save them
A shaky future for U.S. transit systems, and why we need to save them
The pandemic lockdown in cities has impacted transit systems around the world. While the federal stimulus package includes transit agencies, experts at Kleinman Center for Energy Policy argue that the decrease from local and state sources could be substantial.
A new tool for cell biologists
A new tool for cell biologists
Researchers describe a new approach for creating realistic synthetic cells, providing a new tool that can be used to figure out how certain pathogens, such as SARS-CoV-2, infect hosts.
Cavity-causing bacteria assemble an army of protective microbes on human teeth
Cavity-causing bacteria assemble an army of protective microbes on human teeth
Examining bacteria growing on toddlers’ teeth, a team from the School of Dental Medicine and Georgia Tech found that the microbes’ spatial organization is crucial to how they cause tooth decay.
PEP winners connect patients with the medicines they need
PEP winners connect patients with the medicines they need
Aarogya, a social-enterprise nonprofit created by three President’s Engagement Prize winners and graduating seniors, will bring affordable medicines to low-income people living in India.
At home, but still engaged with STEM classes
At home, but still engaged with STEM classes
While instructional laboratories on campus are closed, students, faculty, and instructors are finding creative solutions for science, math, and engineering courses and projects.
In the News
CBS Philadelphia
University of Pennsylvania program training dogs to sniff out spotted lanternfly eggs
Jennifer Essler, a postdoc in the School of Veterinary Medicine, spoke about a new program that trains dogs to detect the presence of spotted lanternfly eggs. “For the dogs, it’s a game, it’s like anything else. They don’t know that they are saving the planet in any way,” she said.
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The Washington Post
Drone maker hurt by US-China rift, opening door to US rivals
Dean Vijay Kumar of the School of Engineering and Applied Science spoke about the challenges of using drones for commercial purposes and about American perceptions of DJI, a China-based drone manufacturer.
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The Hill
Pandemic exposes broadband divide
Christopher Yoo of the Law School spoke about the importance of expanding broadband infrastructure in the U.S. “Investing in infrastructure would be a terrific way to support the economy. It not only spends money but also lays the foundation for future growth and future jobs,” he said.
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CNN
What you need to know about coronavirus on Wednesday, September 2
Kenneth Foster of the School of Engineering and Applied Science debunked conspiracy theories that link 5G networks and radio frequencies to the spread of COVID-19. "There's nothing different in terms of exposure," he said.
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BBC News
Elon Musk to show off working brain-hacking device
Ari Benjamin, a doctoral student in the School of Engineering and Applied Science, said the biggest stumbling block for brain-to-machine interface technology is the complexity of the human brain. "Once they have the recordings, Neuralink will need to decode them and will someday hit the barrier that is our lack of basic understanding of how the brain works, no matter how many neurons they record from,” he said. "Decoding goals and movement plans is hard when you don't understand the neural code in which those things are communicated."
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Gizmodo
Does your cat actually hate you?
Carlo Siracusa of the School of Veterinary Medicine spoke about how cats interact with their owners. “Humans are very physical in their relationships—they want to hold their cat, hug their cat, etc. This can be terrible for any animal that doesn’t enjoy your presence, but it’s even worse for cats, because the way in which cats express their preferences is through proximity,” he said.
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Forbes
National Science Foundation invests $104 million to launch four new engineering research centers
Cherie Kagan of the School of Engineering and Applied Science spoke about the Penn-led IoT4Ag center’s work: “We need new technology to meet the challenges of a world with a growing population and changing climate. We simply need to produce more crops for every drop of water or Joule of energy we’re currently using to realize a food, energy and water-secure future.”
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STAT News
Boosting the promise—and reining in the peril—of COVID-19 preprints
PIK Professor Jonathan Moreno and an AAAS colleague wrote about scientific preprints, web-based publications of yet-to-be-peer-reviewed research findings. “Let’s revel in the knowledge that preprints today are helping researchers share—especially with each other—their latest advances with great ease and speed. At the same time, let’s impose some discipline on our own proclivities to celebrate prematurely or sink into despair,” they wrote.
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The Hill
Wealthy households have 25 percent higher carbon impacts than lower-income homes
Vincent Reina of the Stuart Weitzman School of Design spoke about how class affects access to sustainable energy alternatives. “For higher income individuals, it's a function of choice," he said. "For lower income individuals, it's a function of constraints.”
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The New York Times
Who’s a bot? Who’s not?
Sarah Jackson of the Annenberg School for Communication said it’s important to focus on where bots exist within social networks as well as with whom they actually interact. “Even if there are a lot of bots in a network, it is misleading to suggest they are leading the conversation or influencing real people who are tweeting in those same networks,” she said.
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