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Exploring revolutions through writing
Students at a table in a class in the Lea Library

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Exploring revolutions through writing

A course taught by Professor of History Roger Chartier and Kislak Center curator John Pollack took students on a journey through revolutions as told through writing, tackling issues of both political and societal change.

3 min. read

How American English has evolved since the country’s founding
An open dictionary with a pair of glasses on an open page.

Image: orava via Getty Images

How American English has evolved since the country’s founding

In honor of the 250th anniversary of America, Penn Today spoke with linguist Gareth Roberts about some of the ways that accents have emerged and word meanings have shifted since colonial times.

3 min. read

Examining asthma with human lung-on-a-chip technology
A chip with asthma cells being held up in a dark, neon-colored laboratory environment

A bioengineered “asthma-on-a-chip” platform. (Image: Courtesy of Penn Engineering)

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Examining asthma with human lung-on-a-chip technology

Researchers at Penn Engineering developed an ‘asthma-on-a-chip’ system that mimics the mechanical stresses experienced by human airways during an asthma attack. The innovation enables scientists to probe how unhealthy lung tissue responds to compression in ways previously impossible to observe directly in patients.

Melissa Pappas , From Penn Engineering

2 min. read

What a ‘silenced’ chromosome can tell us about autoimmunity
female chromosomes

Image: Kateryna Kon/Science Photo Library

What a ‘silenced’ chromosome can tell us about autoimmunity

Systemic lupus erythematosus (SLE), the most common form of lupus, is an autoimmune disorder that occurs more frequently in women. Having multiple X chromosomes has been associated with an increased risk of developing lupus; however, the reason for this link is still not fully understood and may involve how X chromosomes are regulated in female immune cells.

3 min. read

Dean Mark Trodden on what’s next for Penn Arts & Sciences
Mark Trodden with folded arms in front of College Hall.

Mark Trodden, dean of the School of Arts & Sciences.

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Dean Mark Trodden on what’s next for Penn Arts & Sciences

Dean Trodden reflects on his first year on the job, how the School of Arts & Sciences is supporting students’ futures through curriculum innovation, the new Physical Sciences Complex, and other initiatives.

6 min. read

Social networks outsmart cognitive biases

Social networks outsmart cognitive biases

A new study from the Annenberg School for Communication shows how herding in networks makes populations more rational.

From Annenberg School for Communication

2 min. read