Plumeworld ocean and snowball Earth
PNAS Science Sessions
How Snowball Earth melted 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, Shuhai Xiao explores how the Earth emerged from a planetwide glaciation called Snowball Earth. In this episode, we cover: •[00:00] Introduction •[00:48] Geobiologist...
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The curious case of the comb jelly
PNAS Science Sessions
Reverse development in a comb jelly 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, Joan Soto and Patel Burkhardt introduce us to a comb jelly with the ability to reverse its development to an earlier stage of life. In this episode, we cover:...
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Air pollution and economic mobility
PNAS Science Sessions
Air pollution and upward mobility 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, Luca Merlo and Francesca Dominici explore whether childhood exposure to air pollution can impact economic upward mobility as an adult. In this episode, we cover:...
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Long-term impact of wildfire smoke pollution
PNAS Science Sessions
Nationwide effects of smoke-related air pollution 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, Kai Chen explains the nationwide health effects of smoke-related fine particulate matter air pollution. In this episode, we cover: •[00:00]...
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Indigenous communities and subsistence whale hunting
PNAS Science Sessions
Indigenous hunting and beluga populations 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, Max Friesen, Eline Lorenzen, and Mikkel Skovrind explore beluga population dynamics in relation to subsistence hunting by Indigenous communities in northern...
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Perceiving musical boundaries
PNAS Science Sessions
The neuroscience of music perception 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, Petri Toiviainen, Ibi Burunat, and Daniel Levitin describe the neuroscience of how musicians and non-musicians perceive boundaries within pieces of music. In this...
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How python hearts grow and shrink
PNAS Science Sessions
How python hearts grow and shrink 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, Leslie Leinwand, of the University of Colorado in Boulder, and Claudia Crocini, of Charité – Berlin University of Medicine in Germany, describe how the hearts of...
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Neighborhood travel and racial segregation
PNAS Science Sessions
How people travel to racially different neighborhoods 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, Mario Small talks about patterns of people's travel to neighborhoods racially different than their home neighborhood. In this episode, we cover:...
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Ocean voyages and disease spread
PNAS Science Sessions
How pathogen stowaways traversed the oceans 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, Jamie Lloyd-Smith and Elizabeth Blackmore describe how they modeled the epidemiology of pathogens on ocean voyages. In this episode, we cover: •[00:00]...
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Why twisters target the United States
PNAS Science Sessions
Why “Tornado Alley” is unique to North America 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, Funing Li and Dan Chavas explain why North America produces many tornadoes each year and South America does not. In this episode, we cover:...
info_outlineSchool enrollment during COVID-19
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, Micah Baum describes how public school enrollments in the US changed during the COVID-19 pandemic.
In this episode, we cover:
• [00:00] Introduction
• [00:54] Micah Baum, an economist at the University of Michigan, introduces school districts’ three modes of learning in fall 2020: virtual, in-person, and hybrid.
• [01:31] Baum explains the reasons for studying public school enrollment changes between the 2019-2020 school year and the 2020-2021 school year.
• [02:51] Description of the data sources used in the study.
• [03:50] Explanation of the changes in enrollment numbers between the two school years.
• [06:00] Explanation of racial differences in enrollment changes.
• [06:46] Exploration of what these results suggest about parent choices.
• [08:24] Implications for school funding in future years.
• [09:18] Caveats and limitations of the study.
• [09:51] Conclusion.
About Our Guest:
Micah Baum
PhD Student
University of Michigan
View related content here: https://www.pnas.org/doi/full/10.1073/pnas.2307308120
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