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Digging into the government report on UFOs
Digging into the government report on UFOs
In a Q&A, historian of science Kate Dorsch illuminates the history behind reporting and investigating UFO sightings and contextualizes the new government report on such phenomena.
Obscuring the truth can promote cooperation
Obscuring the truth can promote cooperation
People are more likely to cooperate if they think others are cooperating, too. New research by biologists in the School of Arts & Sciences shows that overstating the true level of cooperation in a society can increase cooperative behavior overall.
Protein’s ‘silent code’ affects how cells move
Protein’s ‘silent code’ affects how cells move
A School of Veterinary Medicine-led study shows how, despite having nearly identical amino acid sequences, two forms of the protein actin differ in function due their distinct nucleotide sequences.
With remarkable similarities to MS, a disease in dogs opens new avenues for study
With remarkable similarities to MS, a disease in dogs opens new avenues for study
Researchers at the School of Veterinary Medicine led by Jorge Iván Alvarez and Molly Church found that the canine disease granulomatous meningoencephalomyelitis shares many of the same pathological and immunological features as MS.
Designing public institutions that foster cooperation
Designing public institutions that foster cooperation
People are more likely to cooperate with those they see as “good.” Using a mathematical model, School of Arts & Sciences researchers found it’s possible to design systems that assess and broadcast participants’ reputations, leading to high levels of cooperation and adherence.
The use and misuse of race in health care
The use and misuse of race in health care
In a Q&A, PIK Professor Sarah Tishkoff, the Perelman School of Medicine’s Giorgio Sirugo, and Case Western Reserve University’s Scott Williams shed light on the “quagmire” of race, ethnicity, genetic ancestry, and environmental factors and their contribution to health disparities.
Pinpointing how cancer cells turn aggressive
Pinpointing how cancer cells turn aggressive
Penn scientists have developed a new method for tracing the lineage and gene expression patterns of metastatic cancer at the single-cell level.
For early amphibians, a new lifestyle meant a new spine
For early amphibians, a new lifestyle meant a new spine
Moving from water to land and back again corresponded with distinct changes in animals’ spinal morphology, according to a new study led by paleontologist Aja Carter.
How HIV infection shrinks the brain’s white matter
How HIV infection shrinks the brain’s white matter
Researchers from Penn and CHOP detail the mechanism by which HIV infection blocks the maturation process of brain cells that produce myelin, a fatty substance that insulates neurons.
Climate change-resistant corals could provide lifeline to battered reefs
Climate change-resistant corals could provide lifeline to battered reefs
Corals that withstood a severe bleaching event and were transplanted to a different reef maintained their resilient qualities, according to a new study led by Katie Barott of the School of Arts & Sciences.