How schools of ‘microswimmers’ can increase their cargo capacity Inspired by observations made at the Georgia Aquarium, a new study by Penn’s Arnold Mathijssen and colleagues at the Max Planck Institute found that when a school of microscopic, self-propelled droplets known as “microswimmers” moves in the same direction inside a narrow channel, they can increase the cargo capacity—the number of particles they can carry—by tenfold. How schools of ‘microswimmers’ can increase their cargo capacity Penn researchers describe how groups of microscopic, self-propelled droplets can transport more material through narrow channels using a process called collective hydrodynamic entrainment.
Student ambassadors ready to welcome new arrivals during Move-In The student coordinators went on a quick tour of College House locations, including the Quad, during their four-day training that started on Tuesday, led by Edwin Berrios (center), associate director of building operations at Penn. Student ambassadors ready to welcome new arrivals during Move-In Ready to welcome new arrivals to campus, 25 student coordinators are working as paid staff during Move-In to College Houses this coming week.
Daniel Morales-Armstrong’s ‘Inclusive City’ Participants and Inclusive City students facilitate charrette brainstorming sessions. (Image: OMNIA) Daniel Morales-Armstrong’s ‘Inclusive City’ The William Fontaine Fellow of Africana Studies and History helms a course designed to lead students in a collaborative engagement with a local Philadelphian community.
Response to the Cuban protest is ‘a unified feeling’ Protests in Havana against the government of Cuba on July 12, 2021. (Image: 14ymedio) Q&A Response to the Cuban protest is ‘a unified feeling’ In a Q&A, Romance languages professor Odette Casamayor-Cisneros discusses the Cuban protests, government response, and the “sense of unity” among the Cuban people
Artist and professor David Hartt is ‘of the moment’ Artist David Hartt with his installation “The Histories” (Crépuscule) at the Philadelphia Museum of Art in the exhibition “New Grit: Art & Philly Now.” (Image: July 2021 when masks were not required.) Artist and professor David Hartt is ‘of the moment’ This year alone four museums and two galleries are featuring work by artist David Hartt of the Stuart Weitzman School of Design, including currently at the Philadelphia Museum of Art.
Taliban takeover A view of Kabul, Afghanistan from May, 2012. (Image: Courtesy of Lucas Augustin) Taliban takeover Political scientist Nicholas Sambanis, an expert on conflict processes with a focus on civil wars, shares his thoughts on the challenges of nation building and what’s next for Afghanistan.
The story of immigration enforcement The story of immigration enforcement In an award-winning paper, criminologist Aaron Chalfin examines the public safety implications of labor market-based immigration enforcement.
People and Places at Penn People and Places at Penn In anticipation of the return to campus, undergraduates introduce their favorite spots.
Assessing the effectiveness of international organizations Assessing the effectiveness of international organizations Four PURM interns, led by Julia Gray, spent the summer researching the activity and effectiveness of international organizations.
Medical anthropologist Fran Barg reflects on three decades at Penn Fran Barg spent more than 30 years at Penn, conducting research that fell at the intersection of medicine and anthropology. Though she technically retired in June 2021, she plans to remain connected to Penn, to the mentoring and research that has enriched her career. Medical anthropologist Fran Barg reflects on three decades at Penn She spent her career studying the culture of medicine. Through collaborations with colleagues in medicine and anthropology, she’s pinpointed why it’s so crucial to see serious medical problems from both a scientific perspective and a patient one.