PNAS Science Sessions

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.

Roger Beachy discusses the role of genetically modified crops in feeding the world's growing population.

Zvonimir Dogic discusses how viruses can be coaxed into forming self-assembling, polymer membranes.

Won-Yong Song and Jiyoung Park discuss the urgent problem of arsenic-tainted rice in Southeast Asia, and genetically engineered rice plants that would be safe to consume and could help remediate arsenic-contaminated groundwater.

Liza Moscovice discusses what her study on baboon behavior reveals about the evolution of cooperation in humans.

Robina Shaheen and Mark Thiemens discuss an oxygen isotope signature that reveals how carbonates on Mars form in the absence of life.

Cheryl Lyn Walker discusses the role of a cellular protein, called ATM, in offsetting oxidative damage.

Benjamin tenOever discusses his team's prize winning discovery that could be the key to developing a universal influenza A vaccine.

NIH Director Dr. Francis Collins discusses "personalized medicine," a novel approach in which doctors diagnose and treat patients using detailed information about each individual.