Shows
PNAS Science SessionsGenomic history of the Golden HordeGenomics 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 geneticist Ayken Askapuli introduces the Golden Horde. •[02:01] He des...
2026-04-2010 minPNAS Science SessionsConcrete and carbon uptakeHow 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. •[00:56] Construction engineer Hessam Azarijafari introduces us to t...
2026-04-0610 min
未經審視【PNAS】美國國家科學院最新研究:每增加一個消耗你能量的煩人精，你的生物老化速度會提升1.5%？【單集說明】總覺得跟某些人相處特別心累？這不是心理作用，PNAS最新研究發現，這些「消耗型關係」不只影響心情，更會真實地加速你的表觀遺傳時鐘！本集《未經審視》帶你從科學數據看懂人際消耗的生理代價。如果關係像「環境污染」一樣會傷害身體，但我們又無法輕易逃離那些血緣綑綁的家人……那麼，這僅僅是「個人選擇」的問題嗎？還是我們作為一個社會，應該對這種關係健康負起責任？一起來審視這個沒有標準答案，卻值得深思的問題。精彩重點：什麼是 Hasslers？為什麼無意圖的消耗比 PUA 情感操控更難防範？表觀遺傳時鐘揭秘：每多一個煩人精，生物老化速度為何提升 1.5%？HPA軸與皮質醇：長期壓力如何從無形的感受，變成刻在細胞裡的發炎印記？跌破眼鏡的發現：配偶吵架不一定傷身，家人卻是最大的「情緒PM2.5」？(⚠️ 溫馨提醒：本節目內容僅供科學文獻探討與資訊分享，非醫療建議，請諮詢專業人士。節目不提供任何診斷、治療建議或保證療效。)【時間軸 / 章節】00:00（估）開場：那些讓你覺得心累的人，正在偷走你的能量02:30（估）定義 Hasslers：為什麼這種「消耗型關係」比 PUA 更難察覺？05:15（估）讀取表觀遺傳時鐘：DNA 甲基化如何記錄你的老化痕跡？08:00（估）驚人的 PNAS研究數據：生物老化速度提升 1.5% 的代價11:20（估）蘇格拉底時刻：健康不只是「個人行為」，更是「關係」的總和14:10（估）HPA軸的過載危機：皮質醇如何把壓力刻進你的生理系統？17:30（估）最傷人的關係：為何家人的殺傷力大於愛吵架的配偶？20:00（估）人際關係也是環境暴露：該如何面對社交裡的「情緒PM2.5」？22:10（估）結語與反思：無法輕易脫離的毒性關係，究竟是誰的責任？【參考文獻】Lee, B., Ciciurkaite, G., Peng, S., Mitchell, C., & Perry, B. L. (2026). Negative social ties as emerging risk factors for accelerated aging, inflammation, and multimorbidity. PNAS, 123(8), e2515331123.#未經審視 #PNAS研究 #Hasslers #表觀遺傳時鐘 #生物年齡 #情緒PM2.5 #消耗型關係 #皮質醇 #環境暴露 #自我成長
2026-03-2823 minPNAS Science SessionsReconstructing extinct species' sense of smellDetermining 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 •[01:14] Evolutionary biologist Quentin Martinez tell why we want to reconstruct olfa...
2026-03-2310 minPNAS Science SessionsThe hidden costs of AIHidden 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 energy demands of AI data centers have increased in r...
2026-02-2309 minPNAS Science SessionsHow mosquitoes time their bitesMolecular 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 •[00:57] Mosquito neuroscientist Laura Duvall introduces us to the normal biti...
2026-02-0909 minPNAS Science SessionsImpact of flu vaccines on hospital burdenHow 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] Introduction •[01:16] Computational epidemiologist Lauren Meyers introduces the...
2026-01-2610 minPNAS Science SessionsSecrets of Earth's climate in six-million-year-old iceAir 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 Sarah Shackleton introduces the information researchers can glean from ice core...
2026-01-1209 minPNAS Science SessionsChina, ascendentChina'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 scientist James Evans recounts the recent history of the...
2025-12-2910 minPNAS Science SessionsGenetic history of dog domesticationGenetic 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 how the history of gene flow between dogs and their wild rela...
2025-12-0815 minPNAS Science SessionsAir pollution and pet healthAir 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, Stephen Jarvis explores the health impacts of poor air quality on pets. In this episode, we cover: •[00:00] Introduction •[00:51] Environmental economist Stephen Jarvis explains how he became interested in the effe...
2025-11-2409 minPNAS Science SessionsProbing the die-off of Pacific oystersA giant virus associated with oyster aquaculture mortality 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, Curtis Suttle and Kevin Xu Zhong explain how a previously unidentified virus may be connected to mass die-offs of farmed Pacific oysters. In this episode, we cover:
2025-11-1010 minPNAS Science SessionsSwamp lights and bat sightSwamp lights and bat sight 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 two spooky mysteries: the source of will-o'-the-wisps and how bats integrate vision with echolocation. In this episode, we cover: •[00:00] Introduction •[00:58] Richard Zare's background and expertise. •[01:26] Richard, have y...
2025-10-2710 minPNAS Science SessionsEnzyme linked with brain evolutionImplications of a mutation in modern humans 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, Xiangchun Ju and Svante Pääbo explore the evolutionary implications of a mutation that separates modern humans from ancestral hominins. In this episode, we cover: •[00:00] •[01:22] Neurobiologist Xiangchun Ju intr...
2025-10-1310 minPNAS Science SessionsWhere primates evolvedWhere primates evolved 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, Jorge Avaria-Llautureo and Chris Venditti explain why the evolution of primates likely occurred in cold, dry climates rather than in tropical forests. In this episode, we cover: •[00:00] Introduction •[00:58] Evolutionary biologist Jorge Avar...
2025-09-2910 minPNAS Science SessionsHow climate change alters lake oxygen levelsClimate change and lake oxygenation 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, Joachim Jansen explains how climate change altered cycles of oxygenation in lakes. In this episode, we cover: •[00:00] Introduction. •[00:56] Limnologist Joachim Jansen introduces us to the cycles of oxygenation in lake...
2025-09-1510 minPNAS Science SessionsUnpacking the unreturnable squash nick shotThe physics of the squash nick shot 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, Roberto Zenit explains the physics behind the unanswerable nick shot in the game of squash. In this episode, we cover: •[00:00] Introduction. •[00:56] Engineer Roberto Zenit introduces the game of s...
2025-09-0110 minPNAS Science SessionsNorth America's oldest pterosaur fossilA pterosaur and its ecosystem at the end of the Triassic 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, Kay Behrensmeyer and Ben Kligman describe what a fossil bone bed in Arizona reveals about a 209-million-year-old pterosaur and its ecosystem. In this episode, we...
2025-08-1810 minPNAS Science SessionsExploring the origins of a glacial relict sealThe postglacial history of the Saimaa ringed seal 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, Jaakko Pohjoismäki, Jukka Jernvall, and Ari Löytynoja discuss the evolutionary history of the Saimaa ringed seal. In this episode, we cover: •[00:00] Introduction •[01:06] Molecular biologist Jaakko...
2025-08-0410 minPNAS Science SessionsConservation of the Eastern Black Rhinoceros Managing eastern black rhinoceros populations with genetic studies 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, Barbara Mable and Ronald Mellya show how allowing endangered rhinos to move between populations enhances genetic diversity. In this episode, we cover: •[00:00] Introduction •[01:00] Evolutionary geneticist Barb...
2025-07-2110 minPNAS Science SessionsRescuing the northern white rhinoA reference genome aids efforts to rescue the northern white rhinoceros 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, Franz-Josef Müller explains genomic tools to aid the functionally extinct northern white rhinoceros. In this episode, we cover: •[00:00] Introduction •[01:11] Multidisciplinary scientist Franz-Josef Mülle...
2025-07-0710 minPNAS Science SessionsWater and the possibility of life on MarsWater 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...
2025-06-1615 minPNAS Science SessionsMachine learning and climate risk adaptationUsing reinforcement learning to plan for an uncertain climate future 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, Ning Lin talks about how reinforcement learning methods plant to mitigate climate risk despite uncertainty in climate change risk forecasts. In this episode, we cover: •[00:00] In...
2025-06-0210 minPNAS Science SessionsParsing the Knowledge of London cabbiesInsights in route planning from London taxi drivers 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, Hugo Spiers, Pablo Fernández Velasco, and Eva-Marie Griesbauer share what they learned about human route planning from talking with London taxi drivers. In this episode, we cover:
2025-05-1911 minPNAS Science SessionsIndividual decision-making and collective animal behaviorIndividual decision-making and collective animal behavior 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 advances in the modeling of collective animal behaviors. In this episode, we cover: •[00:00] Introduction •[00:48] Conor Heins incorporated cognitive processes into a model of collective behavior. •[02:13] Eva Ka...
2025-04-2112 minPNAS Science SessionsModeling extreme heat wavesModeling extreme heat waves 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 Kornhuber explains how and why climate models struggle to reproduce extreme heat wave trends. In this episode, we cover: •[00:00] Introduction •[00:53] Extreme weather climatologist Kai Kornhuber explains why modeling heat wave...
2025-04-0710 minPNAS Science SessionsEstimating the social cost of carbonReconsidering the social cost of carbon 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, Frances Moore presents a re-analysis of how the social costs of carbon emissions are quantified. In this episode, we cover: •[00:00] Introduction •[00:50] Climate economist Frances Moore explains the "social cost...
2025-03-2409 minPNAS Science SessionsHow hula hoops stay aloftHow hula hoops stay aloft 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, Olivia Pomerenk reveals the physics of hula hooping. In this episode, we cover: •[00:00] Introduction •[00:49] Applied mathematician Olivia Pomerenk talks about the history of hula hooping. •[01:52] Pomerenk explains the fascin...
2025-03-1009 minPNAS Science SessionsClimate effects and shifting Arctic coastlinesErosion, subsidence, and sea level rise on Arctic coastlines 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, Roger Creel describes how compounding forces could reshape a thawing Arctic coastline. In this episode, we cover: •[00:00] Introduction •[00:57] Sea level geophysicist Roger Creel introduces the impo...
2025-02-1710 minPNAS Science SessionsMovies, neurons, and AIHow brains and AI systems process moving images 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, Hollis Cline describes how neuroscience informed development of an artificial intelligence movie recognition system. In this episode, we cover: •[00:00] Introduction •[00:55] Neuroscientist Hollis Cline introduces the background of t...
2025-02-0310 minPNAS Science SessionsSustainability of plant-based meat alternativesSustainability of plant-based meat alternatives 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 discuss the environmental, health, and economic tradeoffs that limit the potential benefits of plant-based meat alternatives. In this episode, we cover: •[00:00] Introduction •[01:19] Rodolphe Barrangou explains the potential opportunities and...
2025-01-0614 minPNAS Science SessionsPlumeworld ocean and snowball EarthHow 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 Shuhai Xiao introduces us to Snowball Earth. •[01:58] Xiao introd...
2024-12-2310 minPNAS Science SessionsThe curious case of the comb jellyReverse 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: •[00:00] In...
2024-12-0910 minPNAS Science SessionsAir pollution and economic mobilityAir 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: •[00:00] Introduction •[01:01] Statistician Luca Merlo talk...
2024-11-2510 minPNAS Science SessionsLong-term impact of wildfire smoke pollutionNationwide 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] Introduction •[01:07] Environmental epidemiologist Kai Chen introduces the health risks of f...
2024-11-1810 minPNAS Science SessionsIndigenous communities and subsistence whale huntingIndigenous 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 Canada. In this episode, we cover: •[00:00] Introduction •[01:01] Archaeologist Max...
2024-11-0410 minPNAS Science SessionsPerceiving musical boundariesThe 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 episode, we cover: •[00:00] Introduction •[01:04] Music neuroscientist Petri...
2024-10-2110 minPNAS Science SessionsHow python hearts grow and shrinkHow 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 constricting pythons change size after meals. I...
2024-10-0708 minPNAS Science SessionsNeighborhood travel and racial segregation 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: •[00:00] Introduction •[00:59] Sociologist Mario Small describes how...
2024-09-3010 minPNAS Science SessionsOcean voyages and disease spreadHow 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] Introduction •[01:04] Integrative scientist Jamie Lloyd-Smith and disease ecol...
2024-09-1610 minPNAS Science SessionsWhy twisters target the United StatesWhy "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: •[00:00] Introduction •[01:01] Weather and...
2024-09-0310 minPNAS Science SessionsCreating culturally inclusive schoolsCreating culturally inclusive school environments 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, Stephanie Fryberg, Hazel Markus, and Laura Brady explore how to create culturally inclusive environments in schools. In this episode, we cover: •[00:00] Introduction •[01:00] Social cultural psychologist Stephanie Fryberg introduces the valu...
2024-08-1910 minPNAS Science SessionsHow redlining affects biodiversityHow redlining affects biodiversity 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, Cesar Estien explores the legacy of mid-20th century redlining through the biodiversity of disadvantaged neighborhoods. In this episode, we cover: •[00:00] Introduction •[1:04] Cesar Estien, an urban ecologist at the University of W...
2024-08-0510 minPNAS Science SessionsAnimal's eye view of the oceanAnimal's eye view of the ocean 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 use animal-borne video cameras to explore foraging behaviors of animals in the open ocean. In this episode, we cover: •[00:00] Introduction •[00:46] Taiki Adachi, an ecologist at the National Inst...
2024-07-1508 minPNAS Science SessionsInequitable exposure to wildfire smokeInequitable wildfire smoke exposure in California 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 Casey shows that some California communities are disproportionately exposed to wildfire air pollution. In this episode, we cover: •[00:00] Introduction •[01:04] Joan Casey, an environmental epidemiologist at the University of W...
2024-07-0110 minPNAS Science SessionsGentrification and biodiversity Biodiversity and gentrification 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, Mason Fidino explores how gentrification changes biodiversity in urban areas. In this episode, we cover: •[00:00] Introduction •[01:02] Mason Fidino, a quantitative ecologist at the Lincoln Park Zoo in Chicago, defines gentrification and...
2024-06-1710 minPNAS Science SessionsSchool enrollment during the COVID-19 pandemicSchool 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, intr...
2024-06-0310 minPNAS Science SessionsEmotional power of live musicEmotional power of live music 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, Sascha Frühholz describes the emotional power of live music compared to recorded music. In this episode, we cover: • [00:00] Introduction • [00:59] Sascha Frühholz, a cognitive neuroscientist at the University of Osl...
2024-05-2009 minPNAS Science SessionsAdapting to poor air qualityAdapting to poor air quality 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, Rebecca Saari explores potential adaptations needed for worsening air quality due to climate change. In this episode, we cover: • [00:03] Introduction • [00:57] Rebecca Saari, an air quality engineer at the University of W...
2024-05-0610 minPNAS Science SessionsMeasuring PovertyScience 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, Christine Pu describes how commonly used measures of poverty don't agree, and why definitions of poverty matter. In this episode, we cover: · [00:00] Introduction · [00:59] Christine Pu, an interdisciplinary scientist from Stanford Univer...
2024-04-2209 minPNAS Science SessionsHow a small fish makes big soundsHow a small fish makes big sounds 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, Verity Cook from Charité – Berlin University of Medicine explains how a fish 12 millimeters in length produces sounds exceeding 140 decibels. In this episode, we cover: •[00:00] Introduction •[01:37] Can you tell us...
2024-04-0806 minPNAS Science SessionsHistory of flight in dinosaursDinosaur feathers hint at flight history 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, Jingmai O'Connor and Yosef Kiat share insights gleaned from modern birds' feathers that help understand the evolutionary history of flight in dinosaurs. In this episode, we cover: •[00:00] Introduction •[01:02] Jing...
2024-03-2510 minPNAS Science SessionsBee communication in a changing worldScience 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 potential impact of anthropogenic disturbances on bee communication. In this episode, we cover: [00:00] Introduction [00:45] Description of the waggle dance of honeybees. [01:59] Maggie Couvillon, an entomologist at Virginia Tech, explains what information researchers can glean...
2024-03-0416 minPNAS Science Sessions50 years of DNA cloningStanley Cohen reflects on the 50-year legacy of a classic PNAS paper on recombinant DNA.
2023-12-1812 min
Dr RR Baliga's "Got Knowledge Doc" PodkastAnthracyclines without Cardiotoxicity? PNAS 18 June 2020 | Dr RR Baliga's 'Got Knowledge Doc' Podkasts for Physicians Uncoupling DNA damage from chromatin damage to detoxify doxorubicin Xiaohang Qiao,......Jacques Neefjes Proceedings of the National Academy of Sciences Jun 2020, 117 (26) 15182-15192; DOI: 10.1073/pnas.1922072117https://www.pnas.org/content/117/26/15182 Jocelyn Kaiser. New forms of 'red devil' cancer drug could spare hearts https://www.sciencemag.org/news/2020/07/new-forms-red-devil-cancer-drug-could-spare-hearts Not Medical Advice or Opinion
2021-01-1909 minPNAS Science SessionsTransitions tied to early farmingClark Larsen describes the costs of urban life a Neolithic city.
2020-08-3117 minPNAS Science SessionsSoil bacterium that lives on airMette Svenning and Alexander Tveit describe a bacterium that can live on gases in the air.
2020-08-1714 minPNAS Science SessionsExploring bivalve shell designDerek Moulton explains the mathematics behind bivalve shell design.
2020-08-0315 minPNAS Science SessionsOrigins of the kinetochoreEelco Tromer and Jolien van Hooff explain the origins of the kinetochore in eukaryotic cells.
2020-07-2017 minPNAS Science SessionsBreaking the STEM ceilingFabiola Gianotti, Marcia McNutt, and Donna Shalala discuss the past, present, and future of women in STEM.
2020-07-0616 minPNAS Science SessionsSize limits of iceFrancesco Paesani, Thomas Zeuch, and Valeria Molinero discuss the size limits of ice crystals.
2020-06-2214 minPNAS Science SessionsHow marine reptiles moved from land to seaJulia Schwab and Steve Brusatte describe how marine reptiles made the evolutionary move from land to sea.
2020-06-0811 minPNAS Science SessionsNutrient dilution and grasshopper declineEllen Welti explains how grasshoppers in a Kansas prairie could be in decline even with abundant grass.
2020-05-2606 minPNAS Science SessionsProtein design and its applicationsNAS member David Baker describes how to design proteins from scratch and the products of his lab's own protein design efforts
2020-05-1118 minPNAS Science SessionsActive learning in STEMElli Theobald and Scott Freeman describe the benefits of active learning for underrepresented minority students.
2020-05-0405 minPNAS Science SessionsDesigning street networksAdam Millard-Ball and Chris Barrington-Leigh explain trends in urban street network design.
2020-04-2006 minPNAS Science SessionsEngineering T cells to fight diseaseNAS member and Nobel laureate David Baltimore describes efforts to enhance T cells' ability to fight cancer and HIV.
2020-04-0607 minPNAS Science SessionsDynamics of RNA frameshiftingChristine Dunham discusses RNA frameshifting and its potential applications in biotechnology.
2020-03-2305 minPNAS Science SessionsAlbatross patrolHenri Weimerskirch describes how albatrosses can help detect illegal fishing boats.
2020-03-0906 min
PNAS Science SessionsStardust predating the Solar SystemPhilipp Heck tells the story of interstellar stardust grains that predate the Solar System.
2020-02-2406 minPNAS Science SessionsThe Science of Science CommunicationBaruch Fischhoff, a decision scientist at Carnegie Mellon University, explains the ingredients necessary for effective science communication.
2020-02-1006 minPNAS Science SessionsImpact crater in southern LaosKerry Sieh recounts the hunt for a meteorite impact crater in Southeast Asia.
2020-01-2106 minPNAS Science SessionsHuman–clam cohistoryDana Lepofsky describes ancient sustainable clam gardening practices.
2019-12-3006 minPNAS Science SessionsArtificial intelligence in the laboratoryTheoretical physicists Hans Briegel and Hendrik Poulsen Nautrup describe an artificial intelligence that can design quantum experiments.
2019-12-1607 minPNAS Science SessionsRhetoric of the French RevolutionSimon DeDeo and Alexander Barron discuss the rhetoric that shaped the French Revolution.
2019-12-0208 minPNAS Science SessionsOcean eddies and shark foragingCam Braun explains how ocean eddies allow sharks to dive and forage in deep water.
2019-10-2807 minPNAS Science SessionsSigns of admixture in fossil recordShara Bailey explains the significance of a three-rooted lower molar in an archaic jaw.
2019-10-1506 minPNAS Science SessionsNucleic acid liquid crystalsNoel Clark and Tommaso Bellini describe how nucleic acids form double-helical liquid crystals, with implications for the origins of life.
2019-09-3007 minPNAS Science SessionsEye movement and visual perceptionBenjamin de Haas explains individual differences in eye movement patterns.
2019-09-1606 minPNAS Science SessionsSerotonin, platelets, and immunityEric Boilard explains the role of serotonin and platelets in immune responses.
2019-09-0407 minPNAS Science SessionsInterfaces and MixingA collection of research articles explores developments in interfacial transport and mixing, with wide-ranging practical applications.
2019-08-1913 minPNAS Science SessionsOrigin of sunflower familyJennifer Mandel outlines the evolutionary history of the sunflower family.
2019-08-0506 minPNAS Science SessionsNutrients and Chesapeake Bay recoveryJonathan Lefcheck and Robert Orth discuss nutrient pollution and recovery in the Chesapeake Bay.
2019-07-2208 minPNAS Science SessionsPhysics of chocolate-makingDaniel Hodgson explains the physics of chocolate-making.
2019-07-0806 minPNAS Science SessionsAdapting to climate changeChris Field discusses misconceptions about climate change and how humans can adapt to a warming planet.
2019-06-2406 min
PNAS Science SessionsClimate change and global economic inequalityNoah Diffenbaugh and Marshall Burke discuss how global warming impacts economies and income inequality.
2019-06-1105 minPNAS Science SessionsThe science of microbesJulie Segre and Liliana Losada discuss human-microbe interactions in a recording of a PNAS Science Cafe event held in Washington, DC on February 27, 2013.
2019-06-1005 minPNAS Science SessionsThe science of biodiversity - Part 2Merlin Hanauer and Chase Mendenhall discuss the science of biodiversity, in the second of two recordings of a PNAS Science Cafe event held in Washington, DC on October 17, 2012.
2019-06-1005 minPNAS Science SessionsThe science of biodiversity - Part 1Merlin Hanauer and Chase Mendenhall discuss the science of biodiversity, in the first of two recordings of a PNAS Science Cafe event held in Washington, DC on October 17, 2012.
2019-06-1005 minPNAS Science SessionsThe science of sleepErin Hanlon and Jeanne Duffy introduce their research on sleep, in a recording of the PNAS "Science of Sleep" event held in Washington, DC on March 14, 2012.
2019-06-1005 minPNAS Science SessionsThe science of fear - Part 2Psychology 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.
2019-06-1004 minPNAS Science SessionsThe science of fear - Part 1Psychology 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.
2019-06-1005 minPNAS Science SessionsNew Editor-in-Chief of PNASInder Verma discusses his new role at PNAS and his future plans for the journal.
2019-06-0703 minPNAS Science SessionsAircraft and Iceland's volcanic ash cloudSusan Stipp discusses her PNAS research article that reveals whether the ash cloud from the 2010 eruption of Iceland's Eyjafjallajökull volcano posed a threat to aircraft, and if the widespread airport closures in Europe were warranted.
2019-06-0702 minPNAS Science SessionsCall for papers: PNAS PlusPNAS Editor-in-Chief Randy Schekman discusses the journal's new option to publish online-only research articles.
2019-06-0701 minPNAS Science SessionsPrivacy and Social Security numbersAlessandro Acquisti is an Associate Professor of Information Technology and Public Policy at the Heinz College at Carnegie Mellon University in Pittsburgh, PA. Listen as Dr. Acquisti discusses his research in the economics of privacy and his 2009 PNAS research article on predicting Social Security numbers.
2019-06-0705 minPNAS Science SessionsHuman expansion out of AfricaRichard Klein served as editor for the PNAS Special Feature titled "Out of Africa". This collection of articles explores the historical expansion of Homo sapiens from Africa to Eurasia. The Special Feature, along with an editorial by Dr. Klein, will publish in the September 22 issue of PNAS.
2019-06-0705 minPNAS Science SessionsInterview with Randy SchekmanRandy Schekman, the PNAS Editor-in-Chief, discusses the selection process and history of the Cozzarelli Prize. The Cozzarelli Prize is given annually to six outstanding PNAS articles, each representing one of the major disciplines of the National Academy of Sciences.
2019-06-0704 minPNAS Science SessionsExamining ProceedingsPNAS is one of the world's most-cited multidisciplinary scientific journals and has been published by the National Academies since 1915. This podcast, part of the Sounds of Science produced by the National Academies, looks at the history and future of this publication with Ken Fulton, publisher of PNAS.
2019-06-0710 minPNAS Science SessionsInterview with Ran NathanRan Nathan organized the Movement Ecology Special Feature for PNAS. He is an associate professor and the chair of the department of Evolution, Systematics, and Ecology at the Hebrew University of Jerusalem, in Jerusalem, Israel.
2019-06-0704 min