Pnas Science Sessions

George Church discusses the potential of synthetic biology.

Erin Hanlon and Jeanne Duffy introduce their research on sleep, in a recording of the PNAS "Science of Sleep" event held in Washington, DC on March 14, 2012.

Robert Langer and Steven Zeitels describe a polymer gel that could help patients regain lost voice.

Developmental biologist Cliff Tabin explains how genes shape the formation of organs.

Can stem cells help cure Type 1 diabetes? Douglas Melton hopes to find out.

Nancy Adler discusses the need for sex-specific scientific reporting and the role it has played in women's health over the last 20 years.

Psychology experts Daniel Pine and Mark Wiederhold answer fear-related questions from the audience, in second of two recordings from PNAS's "The Science of Fear!" event held in Washington, DC on October 12, 2011.

Psychology experts Daniel Pine and Mark Wiederhold introduce their research on fear, in the first of two recordings from PNAS' "The Science of Fear!" event held in Washington, DC on October 12, 2011.

Daniel Nocera discusses how efficient catalysts can help us store solar energy in the same way plants do.

Molecular biologist Stephen Liberles discusses how prey learn to recognize the scent of a predator.

Donald Ingber discusses the "microfabrication" of human biological systems as a means to replace animal testing during drug development.

Inder Verma discusses his new role at PNAS and his future plans for the journal.

Wendy Kellogg discusses her research into social computing and her boots-on-the-ground observations of how mobile phones can impact the developing world.

Stephen Quake discusses rapid DNA sequencing and treating medical patients based on their genomes.

Gregory Abowd discusses the clinical applications of capturing and recording the every day experiences of children with autism spectrum disorder.

George Whitesides discusses an inexpensive and easy-to-use medical diagnostic device that can be used in the developing world.

Jennifer Golbeck discusses the intersection of computer science, sociology, and social networking.

Physicist David Weitz discusses the material properties that make chocolate to-die-for.

Bo Begole discusses ubiquitous computing, behavioral modeling, and smart environments that can anticipate people's information needs.

Secretary of the Smithsonian Institution Wayne Clough discusses his goal to educate the public about the Smithsonian's groundbreaking scientific research projects.