
Visual prosthetic devices for the blind
Peter Schiller discusses a device that could one day restore sight to the blind by directly stimulating the visual cortex.
7 Juni 20195min

Call for papers: PNAS Plus
PNAS Editor-in-Chief Randy Schekman discusses the journal's new option to publish online-only research articles.
7 Juni 20191min

Nano-healing and the future of surgery
Rutledge Ellis-Behnke discusses his research in nano-healing, a technology that halts bleeding and helps the brain and body to recover from injury and disease.
7 Juni 20194min

Identifying the source of HIV infections in criminal cases
David Hillis explains how phylogenetics can be used to solve criminal cases involving the intentional transmission of HIV via unprotected sex.
7 Juni 20194min

Microexpressions and the science behind "Lie to Me"
Paul Ekman, the scientist whose research inspired the Fox television drama "Lie to Me," explains that almost everyone can learn to read the facial microexpressions that reveal concealed emotions, but ...
7 Juni 20195min

The "missing link" between fish and land animals
Neil Shubin researches the evolutionary origin of anatomical features. Dr. Shubin's most recent discovery, Tiktaalik roseae, has been dubbed the "missing link" between fish and land animals. Dr. Shubi...
7 Juni 20194min

Tracking the spread of flu-like diseases in schools
Marcel Salathé researches disease transmission and prevention, at the Penn State University Center for Infectious Disease Dynamics. To investigate how flu-like diseases spread through schools, Dr. Sal...
7 Juni 20191min

Pollution in indoor environments
Charles J. Weschler studies the chemistry of indoor pollutants, including airborne particles, volatile organic compounds, and inorganic gases such as ozone. Listen as Dr. Weschler discusses the conseq...
7 Juni 20196min

















