PNAS Science Sessions
Generative AI and scientific journals Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us. In this episode, Yi Bu explores how generative AI has changed academic publishing. In this episode, we cover: •[00:00] Introduction. •[00:50] Computational social scientist...
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Genomics of the Golden Horde Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us. In this episode, Ayken Askapuli explains genomic insights into the ancestors and descendants of the Golden Horde. In this episode, we cover: •[00:00] Introduction. •[00:56] Population...
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How much carbon dioxide concrete can absorb Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us. In this episode, Hessam Azarijafari explains the extent to which concrete can absorb carbon dioxide over its lifecycle. In this episode, we cover: •[00:00] Introduction....
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Determining how well extinct animals could smell Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us. In this episode, Quentin Martinez describes a reconstruction of olfactory capabilities in extinct mammals. In this episode, we cover: •[00:00] Introduction...
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Hidden sustainability costs of AI Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us. In this episode, researchers describe the sustainability impact of AI data centers. In this episode, we cover: •[00:00] Introduction •[01:20] Bronis de Supinski describes how the...
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Molecular regulation of mosquito biting timing Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us. In this episode, Laura Duvall introduces a potential pathway for disrupting the biting behavior of mosquitoes. In this episode, we cover: •[00:00] Introduction...
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How well flu vaccines protect public health Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us. In this episode, Lauren Meyers explains what the 2022-2023 influenza season taught us about the effectiveness of flu vaccines. In this episode, we cover: •[00:00]...
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Air quality and pet health Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us. In this episode, Sarah Shackleton shares climate lessons learned from 6 million-year-old ice. In this episode, we cover: •[00:00] Introduction •[01:02] Paleoclimate and ice scientist...
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China’s science leadership Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us. In this episode, James Evans explains how and why China's leadership in global science is rising. In this episode, we cover: •[00:00] Introduction •[00:56] Social and complex systems...
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Genetic history of dog domestication Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us. In this episode, researchers explore the impact of domestication on dog genetics and behavior. In this episode, we cover: •[00:00] Introduction •[01:00] Greger Larson explains...
info_outlineWater and the possibility of life on Mars
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, researchers explain what we know about the potential for water and life on Mars and what we might learn from analysis of returned samples.
In this episode, we cover:
•[00:00] Introduction
•[01:04] Mark Thiemens explains the importance of bringing samples from Mars back to Earth.
•[02:37] Arya Udry explains the current gaps and limitations in the geological record provided by Martian meteorites.
•[03:55] Bruce Jakosky explains what we currently know about the presence and history of water on Mars.
•[05:26] Monica Grady explains how analyzing volatile species in Martian samples could provide insight into the planet’s past climate.
•[06:58] Rachel Slank describes the potential presence of liquid brines on Mars.
•[08:27] Vashan Wright used recordings from a seismometer onboard NASA’s InSight lander to estimate the volumes of liquid water that might be contained in the Martian mid-crust.
•[10:14] Mark Sephton explains what biomarkers are and what kinds we might expect to find in Martian samples.
•[11:34] Caroline Freissinet describes the discovery of long-chain organic molecules on Mars and the difficulties of conclusively identifying organic molecules as biomarkers.
•[13:32] Thiemens explains the potentially far-reaching value of continuing to support the Mars Sample Return mission.
•[14:37] Final thoughts and conclusion.
About Our Guest:
Mark Thiemens
Distinguished Professor of Chemistry and Biochemistry
University of California at San Diego
Arya Udry
Associate Professor – Graduate coordinator
University of Nevada, Las Vegas
Bruce Jakosky
Professor Emeritus
University of Colorado Boulder
Monica Grady
Professor Emirita
Open University
Rachel Slank
Postdoctoral Fellow
Lunar and Planetary Institute
Vashan Wright
Assistant Professor
University of California, San Diego
Mark Sephton
Professor
Imperial College London
Caroline Freissinet
Researcher
Laboratory for Atmospheres, Observations, and Space
French National Centre for Scientific Research
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