School of Arts & Sciences

By Erica AndersenCertain mosquitoes don’t get heartworm, and Barbara Biney was keen to find out why.

After losing her parents during her freshman year at the University of Pennsylvania, Anea Moore took steps toward her own healing through her connection with the children of Rwanda who were also coping with grief.Through Penn Hillel’s Moral Voices Fellowship, Moore spent 10 days at the

What can Twitter reveal about people with attention-deficit/hyperactivity disorder, or ADHD?

Alison Sweeney of the University of Pennsylvania has been studying giant clams since she was a postdoctoral fellow at the University of California, Santa Barbara.

Each of your cells contains two copies of 23 chromosomes, one inherited from your father and one from your mother. Theoretically, when you create a gamete — a sperm or an egg —  each copy has a 50-50 shot at being passed on. But the reality isn’t so clearcut.

When Lisa Tran set out to investigate patterns in liquid crystals, she didn’t know what to expect. When she first looked through the microscope, she saw dancing iridescent spheres with fingerprint-like patterns etched into them that spiraled and flattened as the solution they were floated in changed.

The Restoring Active Memory project run by the University of Pennsylvania has just released human intracranial brain recording and stimulation data for 102 new patients and a new spatial-navigation task developed by researchers at Columbia University.

Read a few lines of Chaucer or Shakespeare and you’ll get a sense of how the English language has changed during the past millennium. Linguists catalogue these changes and work to discern why they happened. Meanwhile, evolutionary biologists have been doing something similar with living things, exploring how and why certain genes have changed over generations.

Inspired by how geometry influences physical systems such as soft matter, researchers at the University of Pennsylvania have revealed surprising insights into how the physics of molecules within a cell affect how the cell behaves.

Masao Sako of the University of Pennsylvania was on vacation with his family when he got the news. The Laser Interferometer Gravitational-wave Observatory, or LIGO, had made a fifth detection of gravitational waves, which expand and contract space time.