Science Sessions Podcasts
Welcome to Science Sessions, the PNAS podcast program. Listen to brief conversations with cutting-edge researchers, Academy members, and policy makers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in PNAS, plus a broad range of scientific news about discoveries that affect the world around us. Please scroll down for recent podcasts.
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Science Sessions
An overdependence on p-values
Veronica Vieland discusses a common disconnect between scientists and statisticians in evaluating scientific evidence.
November 17, 2014 | Running Time: 4:29
Retina cell transplantation
Robin Ali describes efforts to transplant healthy rod and cone cells into afflicted retinas.
November 3, 2014 | Running Time: 6:08
Heart regeneration
Hesham Sadek explains the regenerative capability of newborn mouse hearts.
October 20, 2014 | Running Time: 4:40
Global collaboration against HIV
Ambassador Deborah Birx discusses international efforts in the fight against HIV/AIDS.
October 6, 2014 | Running Time: 5:59
Molecular profiling of cancer
Elaine Mardis discusses how next generation sequencing technology is helping the Pan-Cancer Initiative gain a molecular understanding
of cancer.
September 15, 2014 | Running Time: 6:21
Growing stem cells in 3D
David Schaffer describes how to culture human stem cells in a fully-defined, scalable 3D medium.
September 2, 2014 | Running Time: 6:00
Astrocytes and ALS
Brian Kaspar discusses the role of astrocyte cells in the motor neuron disease ALS.
August 18, 2014 | Running Time: 6:01
Taming an unwieldy cancer target
Frank McCormick discusses a National Cancer Institute-led effort to turn a well-known cancer-causing protein into a viable
drug target.
August 4, 2014 | Running Time: 4:27
Genetic switchboards
James Collins explains how researchers can rewire bacterial cells and control multiple genes simultaneously within a single
cell.
July 21, 2014 | Running Time: 4:03
Modeling human cognition
James "Jay" McClelland describes a parallel distributed processing approach to understanding human cognition.
May 19, 2014 | Running Time: 5:37
2013 Cozzarelli Prize Winners
Interview with 2013 Cozzarelli Prize Winners Erik Petigura and Geoffrey Marcy
Erik Petigura and Geoffrey Marcy discuss the number of Earth-like planets that may exist in our galaxy.
June 9, 2014 | Running Time: 6:20See Also:"The prevalence of Earth-size planets orbiting Sun-like stars "by Erik A. Petigura, Andrew W. Howard, and Geoffrey W. Marcy
Interview with 2013 Cozzarelli Prize Winners Mimi Kao and Allison Doupe
Mimi Kao and Allison Doupe explore song learning in the male zebra finch.
June 9, 2014 | Running Time: 4:33See Also:"Task-related "cortical" bursting depends critically on basal ganglia input and is linked to vocal plasticity "by Satoshi Kojima, Mimi H. Kao, and Allison J. Doupe
Interview with 2013 Cozzarelli Prize Winner Tad Patzek
Tad Patzek explains how natural gas production declines over time in hydrofractured wells.
June 23, 2014 | Running Time: 6:20See Also:"Gas production in the Barnett Shale obeys a simple scaling theory "by Tad W. Patzek, Frank Male, and Michael Marder
Interview with 2013 Cozzarelli Prize Winners Yoel Sadovsky and Carolyn Coyne
Yoel Sadovsky and Carolyn Coyne describe the placenta's role in protecting the fetus from infection by viruses.
June 23, 2014 | Running Time: 6:22See Also:"Human placental trophoblasts confer viral resistance to recipient cells "by Elizabeth Delorme-Axford, Rogier B. Donker, Jean-Francois Mouillet, Tianjiao Chu, Avraham Bayer, Yingshi Ouyang, Tianyi Wang, Donna B. Stolz, Saumendra N. Sarkar, Adrian E. Morelli, Yoel Sadovsky, and Carolyn B. Coyne
Interview with 2013 Cozzarelli Prize Winner Caroline Roullier
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.
July 7, 2014 | Running Time: 6:15See Also:"Historical collections reveal patterns of diffusion of sweet potato in Oceania obscured by modern plant movements and recombination "by Caroline Roullier, Laure Benoit, Doyle B. McKey, and Vincent Lebot
Interview with 2013 Cozzarelli Prize Winner Francesco Pennacchio
Francesco Pennacchio explains how neonicotinoid insecticides can influence the immune response of honey bees.
July 7, 2014 | Running Time: 6:22See Also:"Neonicotinoid clothianidin adversely affects insect immunity and promotes replication of a viral pathogen in honey bees "by Gennaro Di Prisco, Valeria Cavaliere, Desiderato Annoscia, Paola Varricchio, Emilio Caprio, Francesco Nazzi, Giuseppe Gargiulo, and Francesco Pennacchio
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- Cluster analysis and display of genome-wide expression patterns
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