Pnas Science Sessions

Robin Ali describes efforts to transplant healthy rod and cone cells into afflicted retinas.

Hesham Sadek explains the regenerative capability of newborn mouse hearts.

Ambassador Deborah Birx discusses international efforts in the fight against HIV/AIDS.

Elaine Mardis discusses how next generation sequencing technology is helping the Pan-Cancer Initiative gain a molecular understanding of cancer.

David Schaffer describes how to culture human stem cells in a fully-defined, scalable 3D medium.

Brian Kaspar discusses the role of astrocyte cells in the motor neuron disease ALS.

Frank McCormick discusses a National Cancer Institute-led effort to turn a well-known cancer-causing protein into a viable drug target.

James Collins explains how researchers can rewire bacterial cells and control multiple genes simultaneously within a single cell.

Francesco Pennacchio explains how neonicotinoid insecticides can influence the immune response of honey bees.

Caroline Roullier and colleagues won the 2013 Cozzarelli Prize in Behavioral and Social Sciences for their work on the distribution of sweet potatoes in Oceania.

Yoel Sadovsky and Carolyn Coyne describe the placenta's role in protecting the fetus from infection by viruses.

Tad Patzek explains how natural gas production declines over time in hydrofractured wells.

Mimi Kao and Allison Doupe explore song learning in the male zebra finch.

Erik Petigura and Geoffrey Marcy discuss the number of Earth-like planets that may exist in our galaxy.

James "Jay" McClelland describes a parallel distributed processing approach to understanding human cognition.

Alvin Roth discusses how principles of economics can benefit people who need kidney transplants.

Inés Ibañez-Tallon discusses how nicotine and neurons conspire to hamper efforts to quit smoking.

Inder Verma and colleagues describe how a breast cancer-associated gene might be implicated in brain size control in mammals.

Paul Dunk discusses the chemistry of carbon in space following a supernova.

NAS member Gregory Petsko discusses efforts to assess the US postdoctoral workforce.