News from

School of Arts & Sciences

Visit the School's Site
Reset All Filters
3734 Results
Understanding the social dynamics that cause cooperation to thrive, or fail
Akcay hyenas cooperation

Despite their reputation, spotted hyenas are often cooperative animals, dwelling in large groups and assisting one another during hunts. Penn biologist Erol Akçay modeled a theoretical social group to show how cooperation can arise or collapse. (Photo: Amiyaal Ilany)

Understanding the social dynamics that cause cooperation to thrive, or fail

Many examples of cooperation exist in nature, but it’s far from a universal characteristic of human or animal groups. Using a mathematical model, Erol Akçay showed that less randomly connected social networks make cooperation more likely, but those dynamics may ultimately lead to cooperation’s collapse.

Katherine Unger Baillie

Philly as lab, classroom, and collaborator
Sayre Health Clinic

Philly as lab, classroom, and collaborator

Philadelphia’s rich history and forward momentum make it ripe for scientific inquiry for a number of Penn schools and departments, from urban and population studies to medicine and anthropology.

Michele W. Berger

Penn One Health goes abroad
James Ferrara

James Ferrara will lead an interdisciplinary team of Penn students to Kathmandu, Nepal this summer to study a bacteria called Campylobacter.

Penn One Health goes abroad

In August, Penn Vet student James Ferrara will combine veterinary research and public health outreach in Nepal, where he will join a team of graduate students conducting research on Campylobacter, a bacteria found in unpasteurized milk, that is prone to cause infection.

Jacob Williamson-Rea

Academic ‘boot camp’
Warrior 3

From left to right: Jorge Pintado and Jahbril Jauregui participate in writing instruction during the Warrior-Scholar Project at Penn.

Academic ‘boot camp’

A group of 13 active-duty service members and veterans took part in the Warrior-Scholar Project, which introduces enlisted personnel toward an undergraduate program at a top-tier institution with a weeklong academic program.
Serving those who serve
Ryan Leone

Serving those who serve

In preparation for a career as a physician with the Military Health System, Ryan Leone is spending his summer in Falls Church, Va., interning with the Defense Health Agency.
Frigid polar oceans, not coral reefs, are hot spots for formations of fish species
Sallan.parrot fish

The bicolor parrotfish is a member of a group of fish that dwells in the tropics, which a new study found to be, counterintuitively, slower-evolving than fish in colder ocean waters. (Image: Richard Ling/Wikipedia)

Frigid polar oceans, not coral reefs, are hot spots for formations of fish species

Tropical waters contain a dazzling diversity of fish species compared to colder ocean areas. Yet a new study paradoxically indicates that the colder waters are home to the highest species formation rates.

Katherine Unger Baillie

A maverick among chemists
Madeleine Joullie Madeleine Joullie, professor of chemistry and the first woman to join Penn’s chemistry faculty

A maverick among chemists

Madeleine Joullie, the first woman to join Penn’s chemistry faculty, was also the University’s first affirmative action officer, which she says is the most important thing she’s done.

Ali Sundermier

On the ground in Washington, D.C.
Louis Lin in Washington, D.C.

On the ground in Washington, D.C.

Rising junior Louis Lin is pursuing his interest in policy making via an International Leadership Foundation Fellowship and an internship with the Federal Aviation Administration.
Brain stimulation decreases intent to commit assault
Roy Hamilton of Penn Medicine was part of a research team that looked at whether a minimally invasive brain stimulation can reduce someone's intent to commit a violent crime.

Roy Hamilton of Penn Medicine (left) was part of a research team that studied whether a minimally invasive brain stimulation, similar to what he’s demonstrating in this photo, can reduce someone’s intent to commit a violent crime.

Brain stimulation decreases intent to commit assault

Research from Penn Medicine and the Criminology department shows that using minimally invasive electrical currents on the prefrontal cortex can reduce the desire to carry out such violence and increase the perception that it’s morally wrong.

Michele W. Berger