Science & Technology

Smart dental implants

Geelsu Hwang of the School of Dental Medicine and colleagues are developing a smart dental implant that resists bacterial growth and generates its own electricity through chewing and brushing to power a tissue-rejuvenating light.

Katherine Unger Baillie



In the News


The Scientist

Signaling dynamics fine-tune gene expressiong

Lukasz Bugaj of the School of Engineering & Applied Science comments on a systematic and quantitative look at how gene information is transmitted and what can influence the amount of expression.

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Philadelphia Business Journal

Penn spinout Cogwear gets funding to develop ‘anxiety thermometer’ headband

Cogwear, a startup based at the Penn Center for Innovation and founded by PIK Professor Michael Platt and former postdoc Arjun Ramakrishnan, is developing a wearable device that monitors mental health.

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Wired

Now that machines can learn, can they unlearn?

Aaron Roth of the School of Engineering and Applied Science spoke about his research on machine unlearning, which seeks to answer the question, “Can we remove all influence of someone’s data when they ask to delete it but avoid the full cost of retraining from scratch?”

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Forbes

COVID’s forgotten hero: The untold story of the scientist whose breakthrough made the vaccines possible

Vaccine technology developed by Drew Weissman and Katalin Karikó of the Perelman School of Medicine relies on a lipid delivery system created by Ian MacLachlan, a Canadian scientist.

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Philadelphia Inquirer

Prizewinning photo by Penn biologist called metaphor for ‘spiraling crisis’ in the ocean

Kristen Brown, a postdoc in the lab of Katie Barott at the School of Arts & Sciences, won a contest with a photo she took while researching coral reefs.

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Discover Magazine

We’re not alone: Animals suffer from mental health issues too

Carlo Siracusa of the School of Veterinary Medicine said, that while dogs certainly experience mental health issues like anxiety, their experiences differ from humans’ because they can’t plan for the future. “They’re not worrying if their buddies at the dog park are making fun of them,” he said. “Dogs aren’t obsessed in their thoughts like humans—as far as we know. They’re unlikely to be depressed in human terms.”

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Salon.com

Your dog has a rich interior life it's not telling you about

James Serpell of the School of Veterinary Medicine spoke about how dogs interact with and interpret the world around them, from barking to licking to sniffing. “While we derive most of the information about the world around us through our eyes and ears, dogs can access an additional layer of information via their noses that we are essentially ‘blind’ to,” he said.

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USA Today

Fact check: 62-mile-wide mega comet unlikely to hit Earth, will just pass by it in 2031

Pedro Bernardinelli and Gary Bernstein of the School of Arts & Sciences spoke about the giant comet they recently discovered. “There is no possibility of this thing getting any closer to Earth than Saturn gets,” said Bernstein.

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NPR

More retailers are using AI. What does this mean for privacy?

Joseph Turow of the Annenberg School for Communication weighed in on how machine learning and automation are shaping the job market and consumer privacy.

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Psychology Today

Hyenas inherit their moms’ social connections

Erol Akçay of the School of Arts & Sciences and former postdoc Amiyaal Ilany discussed their research on hyena’s social networks. “We show that a simple process—social inheritance—is important to understanding network structure and dynamics,” said Akçay.

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