Podcasts about Nature Communications

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Best podcasts about Nature Communications

Latest podcast episodes about Nature Communications

Dr. Chapa’s Clinical Pearls.
Pregnancy and the Brain

Dr. Chapa’s Clinical Pearls.

Play Episode Listen Later Feb 27, 2026 23:15


A study published in Nature Communications, published Feb 19, 2026, found that “pregnancy physically alters a woman's brain, with a second pregnancy bringing even more profound effects.” The researchers “performed brain scans on 110 women. Some were first-time mothers, others second-time moms, and some nulliparous women. Results showed that during a first pregnancy, the greatest changes occur in the structure and activity of the ‘default mode network' – the brain system responsible for self-reflection and mind wandering. Are these changes bad? Are they associated with long term hard? Are they adaptive? It's a complex question, with real answers. Listen in for details.1. Straathof, M., Halmans, S., Pouwels, P.J.W. et al. The effects of a second pregnancy on women's brain structure and function. Nat Commun 17, 1495 (2026). https://doi.org/10.1038/s41467-026-69370-82. de Lange AG, Kaufmann T, van der Meer D, et al. Population-Based Neuroimaging Reveals Traces of Childbirth in the Maternal Brain. Proceedings of the National Academy of Sciences of the United States of America. 2019.3. Aleknaviciute J, Evans TE, Aribas E, et al.)Long-Term Association of Pregnancy and Maternal Brain Structure: The Rotterdam Study. European Journal of Epidemiology. 2022.4. Jung JH, Lee GW, Lee JH, et al. Multiparity, Brain Atrophy, and Cognitive Decline. Frontiers in Aging Neuroscience. 2020.5. Hu A, Xiong L, Wei H, et al. Association of Menarche, Menopause, and Reproductive History With Cognitive Performance in Older US Women: A Cross-Sectional Study From NHANES 2011-2014. BMC Public Health. 2025.6. Orchard ER, Ward PGD, Sforazzini F, et al. Relationship Between Parenthood and Cortical Thickness in Late Adulthood. PloS One. 20207. Hoekzema E, Barba-Müller E, Pozzobon C, et al. Pregnancy Leads to Long-Lasting Changes in Human Brain Structure. Nature Neuroscience. 2017.8. de Lange AG, Barth C, Kaufmann T, et al. Women's Brain Aging: Effects of Sex-Hormone Exposure, Pregnancies, and Genetic Risk for Alzheimer's Disease. Human Brain Mapping. 2020.Visit our SPONSOR's LINK to learn more about the Hemorrhage view CS Drape: https://www.perspectivemedical.org/

Capital
H2 Intereconomía. European Hydrogen Energy Conference en Sevilla

Capital

Play Episode Listen Later Feb 24, 2026 21:59


Esta semana en H2 Intereconomía, las noticias sobre hidrógeno han mostrado un impulso significativo del sector en España. Iberdrola ha activado una nueva fase de su estrategia de hidrógeno verde, reforzando su papel en la descarbonización industrial mediante inversiones, contratos y consolidación de infraestructuras. Avalon Renovables ha elevado la inversión de su planta ‘La Joya H2' en Antequera hasta 1.200 millones de euros, buscando convertir la zona en un polo estratégico de hidrógeno verde. En Euskadi, ya se impulsan 65 proyectos con objetivos ambiciosos de potencia instalada y producción de combustibles sintéticos para 2030. Además, MASPV y Shanghai Shaanyao presentan proyectos conjuntos por más de 1.000 millones de euros, mientras que la fundación CIM UPC ha logrado producir hidrógeno verde mediante impresión 3D, abriendo nuevas vías en manufactura energética. Un estudio publicado en Nature Communications también ha revelado que el núcleo terrestre podría contener hasta 45 veces más hidrógeno que los océanos, reavivando el debate sobre el origen y la distribución del agua en el planeta. Javier Brey, presidente de la Asociación Española del Hidrógeno, ha explicado que el European Hydrogen Energy Conference (EHEC) es un congreso bianual de gran relevancia internacional, organizado desde 2005 para reunir a expertos, empresas e instituciones de más de 50 países. La próxima edición en Sevilla se celebrará en el Palacio de Congresos FIBES y contará con cerca de 2.000 asistentes, sesiones plenarias, paralelas y una amplia zona expositiva. El evento, como ha señalado Javier Brey, integra toda la cadena de valor del hidrógeno, desde la investigación y desarrollo hasta la industria y los reguladores, ofreciendo un foro único para la innovación y la colaboración internacional. Sobre la participación industrial, Brey resaltó que la presencia de empresas es fundamental, con 111 stands, pabellones nacionales e internacionales y exposición de vehículos y equipamiento de hidrógeno. Esta integración de industria y ciencia convierte al EHEC en un congreso que combina aspectos científicos, tecnológicos, industriales y políticos, reforzando la posición de España como líder en producción de hidrógeno verde y en desarrollo de tecnología asociada. Asimismo, el evento permite a empresas y académicos interactuar directamente y mostrar avances, proyectos y soluciones innovadoras en un entorno de colaboración abierto. Brey ha indicado que el sector del Hidrógeno se encuentra en un proceso de consolidación: aunque la cartera total de proyectos ha disminuido un 14% entre 2024 y 2025, los proyectos en operación, construcción o con cierre financiero son más maduros y viables. Destacó también el papel del apoyo institucional, especialmente de la Junta de Andalucía y del Ayuntamiento de Sevilla, que han respaldado la candidatura de la ciudad como sede del congreso, proporcionando apoyo financiero e institucional. Brey subrayó que lo que el sector necesita ahora es estabilidad regulatoria y seguridad jurídica, además de continuar fomentando la innovación y la colaboración a través de eventos como el EHEC.

Neuro-Oncology: The Podcast
Neuro-Oncology Nugget: Targeting CDK8 in MYC-Driven Medulloblastoma

Neuro-Oncology: The Podcast

Play Episode Listen Later Feb 23, 2026 2:52


Shahad Abdulsahib discusses the findings of a recent paper, entitled "Transcriptional regulation of protein synthesis by mediator kinase represents a therapeutic vulnerability in MYC-driven medulloblastoma", which was published in Nature Communications in December 2025.

Choses à Savoir SANTE
Quel aliment fait baisser le cholestérol en 48h ?

Choses à Savoir SANTE

Play Episode Listen Later Feb 19, 2026 1:42


L'excès de cholestérol, ou hypercholestérolémie, est un défi majeur pour la santé cardiovasculaire, augmentant les risques d'infarctus et d'AVC. Si l'on sait que l'alimentation est un levier clé sur le long terme, une étude récente relayée par le Journal des Femmes révèle qu'un aliment spécifique peut générer des résultats spectaculaires en un temps record : le flocon d'avoine.Une efficacité prouvée en 48 heuresL'étude, publiée dans la revue scientifique Nature Communications, s'est penchée sur des personnes souffrant de syndrome métabolique (associant obésité, hypertension et cholestérol). Les chercheurs ont testé un régime intensif de deux jours comprenant une consommation élevée d'avoine (environ 100g consommés trois fois par jour). Les résultats sont sans appel : en seulement 48 heures, une baisse significative du "mauvais" cholestérol (LDL) et du cholestérol total a été mesurée par rapport au groupe témoin.Le secret : l'interaction avec le microbiotePourquoi une telle rapidité ? L'explication ne réside pas uniquement dans l'avoine elle-même, mais dans la manière dont notre corps la transforme. Le flocon d'avoine est riche en fibres spécifiques qui, une fois ingérées, interagissent avec les bactéries de notre intestin.Le microbiote intestinal transforme ces fibres en molécules bénéfiques qui passent ensuite dans le sang. Parmi elles, l'acide férulique et l'acide dihydroférulique jouent un rôle protecteur crucial. L'étude démontre que plus l'apport en avoine est important, plus la production de ces substances par les bactéries intestinales est rapide et massive. Ce sont ces composés qui agissent comme des agents régulateurs, permettant de faire chuter les niveaux de lipides circulants de manière quasi immédiate.Comment l'intégrer au quotidien ?Au-delà de cette "cure" express de 48 heures, l'avoine reste un allié précieux sur la durée. L'avantage du flocon d'avoine est sa grande polyvalence. On peut le consommer :Au petit-déjeuner : sous forme de porridge, mélangé à un yaourt ou dans un smoothie.En cuisine salée : pour épaissir une soupe, lier des boulettes de viande ou confectionner des galettes végétales.En pâtisserie : en remplacement partiel de la farine dans des gâteaux ou des pains maison.En résumé, le flocon d'avoine n'est pas qu'un simple aliment santé ; c'est un véritable catalyseur biologique qui, grâce à l'action de notre microbiote, offre une solution naturelle, rapide et accessible pour protéger nos artères et notre cœur. Hébergé par Acast. Visitez acast.com/privacy pour plus d'informations.

The Gut Goddess Show with Kezia Hall
Intermittent Fasting for Women: Does It Actually Help You Lose Weight?

The Gut Goddess Show with Kezia Hall

Play Episode Listen Later Feb 18, 2026 29:43


Intermittent fasting is often promoted as a simple solution for weight loss, but most of the research behind it has been done in men. In this episode, I break down one of the few women-specific trials on time-restricted eating: Flexible time-restricted eating and aerobic exercise in middle-aged women (Nature Communications, 2025). You can read the paper here: https://www.nature.com/articles/s41467-025-65678-z This study looked at middle-aged women with overweight or obesity and found that an 8-hour eating window reduced fat mass, with the greatest improvements seen when time-restricted eating was combined with exercise. In this episode, we cover: Why skipping breakfast often backfires for stressed or cycling women Why cortisol, sleep, and total intake matter more than fasting longer Why I prefer time-restricted eating over strict 16-hour fasts How a 10–12 hour overnight fast may support fat metabolism A more sustainable, physiology-first approach to weight loss If you want a more sustainable, physiology-first approach to weight loss as a woman, this episode will help you rethink timing, stress, and structure. Notes: Join Flourish - my small group programme focused on weight loss here

Wissensnachrichten - Deutschlandfunk Nova
KI-Problem, Kurzsichtigkeit, Antarktis

Wissensnachrichten - Deutschlandfunk Nova

Play Episode Listen Later Feb 18, 2026 5:29


Die Themen in den Wissensnachrichten: +++ KI kann in Firmen zum Problem werden +++ Licht hilft wohl gegen Kurzsichtigkeit +++ Bohrkern hunderte Meter unterm Eis hervorgeholt +++**********Weiterführende Quellen zu dieser Folge:Fading Memories: The Role of Machine Learning in Organizational Knowledge Depreciation, Academy of Management, 3.2.2026Human accommodative visuomotor function is driven by contrast, Cell Reports, 17.2.2026Record-breaking sediment core provides unprecedented evidence of West Antarctic Ice Sheet retreat, SWAIS2C, 18.2.2026Quantifying tropical forest rainfall generation, Nature Communications, 17.2.2026SWR-Bericht über Plug-In-Hybridautos, 18.2.2026Alle Quellen findet ihr hier.**********Ihr könnt uns auch auf diesen Kanälen folgen: TikTok und Instagram .

SpaceTime with Stuart Gary | Astronomy, Space & Science News
Earth's Core Secrets and Solar Neutrinos: Unveiling the Mysteries of Our Planet and the Sun

SpaceTime with Stuart Gary | Astronomy, Space & Science News

Play Episode Listen Later Feb 17, 2026 32:14


In this episode of SpaceTime, we dive into groundbreaking research revealing the true composition of the Earth's core, explore new insights into solar neutrinos, and uncover the complexities of Martian volcanoes.Earth's Core Contains Vast Hydrogen ReservoirA recent study published in Nature Communications indicates that Earth's core may hold up to 45 oceans' worth of hydrogen, challenging the long-held belief that water on our planet primarily came from asteroids and comets. Utilizing advanced laboratory techniques, researchers simulated the extreme conditions of the core to uncover its surprising hydrogen content, suggesting a significant internal source of water far beyond previous estimates.Neutrinos from the Sun's CoreA new dark matter experiment has successfully detected neutrinos originating from the Sun's core, marking a significant milestone in our understanding of these elusive particles. The LZ experiment at the Sanford Underground Research Facility captured signals from Brian 8 solar neutrinos, providing valuable data on solar processes and setting new limits for dark matter research. This breakthrough highlights the potential of neutrino studies in unraveling the mysteries of both dark matter and stellar dynamics.Complexity of Martian VolcanoesNew findings published in Geology reveal that young Martian volcanoes are far more complex than previously thought. Researchers have discovered that these volcanoes were shaped by long-lasting and evolving magma systems rather than single eruptions. By analyzing surface features and mineral compositions from orbit, scientists have reconstructed the intricate eruptive history of these volcanic systems, shedding light on the Red Planet's geological past.www.spacetimewithstuartgary.com✍️ Episode ReferencesNature Communications, GeologyBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-with-stuart-gary--2458531/support.(00:00:00) New study reveals Earth's core may contain vast amounts of hydrogen(00:08:30) Breakthrough in solar neutrino detection from the Sun's core(00:16:45) Insights into the complex eruptive history of Martian volcanoes(00:25:00) Science report: The link between caffeine consumption and reduced dementia risk(00:32:15) Study on the frequency of passionate love experiences in humans

Irish Tech News Audio Articles
Scientists discover a new method for building DNA-damaging molecules with anticancer potential

Irish Tech News Audio Articles

Play Episode Listen Later Feb 13, 2026 4:57


Scientists at Dublin City University (DCU, Ireland), in collaboration with research teams in Chimie ParisTech – PSL (France), Chalmers University of Technology, Sahlgrenska University Hospital, Gothenburg (Sweden), and the University of Limerick (Ireland), have developed a new chemical strategy for designing metal-based compounds capable of damaging cancer cell DNA, offering a potential new direction for future anticancer drug development. Led by Professor Andrew Kellett, this European consortium has created a series of molecules that cut DNA through a distinct chemical mechanism compared with existing chemotherapy drugs. The research focuses on early-stage compounds that could form the basis of future therapies, particularly in cancers that become resistant to treatment. The scientists used click chemistry—a fast and reliable method for assembling molecular components—to create a family of compounds known as Tri-Click ligands. When combined with copper ions, these ligands form artificial metallo-nucleases, metal-containing agents designed to cleave DNA. Drug resistance remains one of the biggest challenges in cancer treatment. Tumours can adapt by repairing specific forms of DNA damage or by blocking the activity of conventional drugs. A key advantage of this new chemical strategy is that the compounds damage DNA via pathways that differ from those targeted by many current cancer treatments. This means they may avoid some of the typical mechanisms that cancers use to become resistant. Professor Andrew Kellett, Professor of Inorganic and Medicinal Chemistry at DCU, said: "Click chemistry has transformed how we build complex molecules, but its potential as a platform to assemble DNA-damaging chemotherapeutics is underexplored. One of the major challenges in cancer treatment is drug resistance. By developing compounds that damage DNA in a different way, we aim to open up new possibilities for overcoming some of the limitations of existing therapies. While this research is still at an early stage, it provides a valuable platform for future drug development." Professor Gilles Gasser, Professor of Bioinorganic Chemistry at Chimie ParisTech, said: "This work is clear evidence of the potential of metal-based compounds for anticancer research, going beyond the currently heavily used platinum-based drugs. While still in its infancy, this study is a first step towards new solutions for cancer treatment. On a completely different note, this work is another demonstration of the power of collaboration between European scientists and institutions." Professor Damien Thompson, Director of SSPC, the Research Ireland Centre for Pharmaceuticals & Professor of Molecular Modelling at UL, said: "This work exemplifies the value of systematic, deep screening of molecular properties in the development of more effective medicines. Support from SSPC, the Research Ireland Centre for Pharmaceuticals, enabled strong collaboration between our experimental and modelling teams, and this new design strategy marks a key milestone in developing sustainable, well-tolerated anticancer drugs." Professor Fredrik Westerlund, Professor of Molecular Bioscience at Chalmers University of Technology, said: "This study truly highlights how combined expertise across Europe can lead to innovative results in a research field of paramount importance. Novel treatments to resistant cancer tumours are highly desired in the clinics, and the metal compounds developed in this study have many of the properties that are eagerly sought for." The findings are published in the journal Nature Communications: https://www.nature.com/articles/s41467-026-68911-5 The researchers emphasise that the findings are preclinical, and further testing is required before any potential clinical application. More about Irish Tech News Irish Tech News are Ireland's No. 1 Online Tech Publication and often Ireland's No.1 Tech Podcast too. You can find hundreds of fantastic previous episodes and subscribe ...

Epigenetics Podcast
Decoding Cell Fate Through 3D Genome Organization and Chromatin Dynamics (Srinjan Basu)

Epigenetics Podcast

Play Episode Listen Later Feb 12, 2026 41:20


In this episode of the Epigenetics Podcast, we talked with Srinjan Basu from Imperial College London to talk about his work on how chromatin architecture and epigenetic mechanisms orchestrate developmental gene expression programs. We begin by exploring Dr. Basu's early work at Harvard which involved pioneering Raman-based label-free imaging, allowing the study of chromatin dynamics in live tissue. Here, he tackles technical challenges faced in visualizing DNA interactions, emphasizing the shift from 2D to 3D analysis and the importance of real-time observation of chromatin behavior under various conditions. This segues into his groundbreaking research on single transcription factors interacting with chromatin, revealing subtle but significant changes in the dynamics of gene regulation. We transition into the complexities of chromatin architecture as Dr. Basu recounts his efforts in mapping the entire mouse genome in single pluripotent cells, unearthing unexpected heterogeneity among cells. This heterogeneity raises intriguing questions about its impact on cellular function, prompting ongoing investigations into chromatin dynamics and the role of remodeling complexes like NuRD in cell fate transitions. Dr. Basu elucidates how recent studies have begun to bridge the gaps in understanding how transcription factors and chromatin dynamics interact during cellular decisions, particularly emphasizing the influence of mechanical signals and the intrinsic properties of cells. His research underscores the idea that stem cells undergo a preparatory phase for differentiation, highlighting the critical balance of intrinsic and extrinsic factors that govern genetic expression and cellular outcomes. We also talk about Dr. Basu's current research trajectory, focusing on enhancing imaging techniques to study gene dynamics in tissue contexts relevant to developmental biology and disease states. He illustrates a vision for future projects that integrate advanced imaging tools to investigate transcription factor dynamics and chromatin interactions in live cells and embryos, furthering the understanding of decision-making processes in cellular contexts. References Stevens TJ, Lando D, Basu S, et al. 3D structures of individual mammalian genomes studied by single-cell Hi-C. Nature. 2017 Apr;544(7648):59-64. DOI: 10.1038/nature21429. PMID: 28289288; PMCID: PMC5385134. Basu S, Needham LM, Lando D, et al. FRET-enhanced photostability allows improved single-molecule tracking of proteins and protein complexes in live mammalian cells. Nature Communications. 2018 Jun;9(1):2520. DOI: 10.1038/s41467-018-04486-0. PMID: 29955052; PMCID: PMC6023872. Related Episodes Advanced Optical Imaging in 3D Nuclear Organisation (Lothar Schermelleh) Analysis of 3D Chromatin Structure Using Super-Resolution Imaging (Alistair Boettiger) Single-Molecule Imaging of the Epigenome (Efrat Shema) Contact Epigenetics Podcast on Mastodon Epigenetics Podcast on Bluesky Dr. Stefan Dillinger on LinkedIn Active Motif on LinkedIn Active Motif on Bluesky Email: podcast@activemotif.com

Wissensnachrichten - Deutschlandfunk Nova
Nachnamen, Koffein, Mondmission

Wissensnachrichten - Deutschlandfunk Nova

Play Episode Listen Later Feb 11, 2026 5:35


Die Themen in den Wissensnachrichten: +++ Namen enthielten früher mehr Informationen +++ Beugt Koffein gegen Demenz vor? +++ Chinas Fortschritte auf dem Weg zum Mond +++**********Weiterführende Quellen zu dieser Folge:Cross-cultural structures of personal name systems reflect general communicative principles, Nature Communications, 19. Jan. 2026Coffee and Tea Intake, Dementia Risk, and Cognitive Function, Jama, 9. Feb. 2026The development of bribe-taking aversion in four societies, Proceedings B, Feb. 2026Inferring the strength of directional selection on armor plates in Lake Washington stickleback, Evolution, 16. dez 2025Using artificial intelligence-driven simulations to identify rules for an ancient board game, Antiquity, 11. Feb. 2026**********Ihr könnt uns auch auf diesen Kanälen folgen: TikTok und Instagram .

Astronomy Daily - The Podcast
Solar Fireworks, Crew-12 Countdown, and Venus Hides a Secret

Astronomy Daily - The Podcast

Play Episode Listen Later Feb 10, 2026 13:39 Transcription Available


In today's episode of Astronomy Daily, Anna and Avery cover five major stories from across the cosmos. SpaceX Crew-12 is targeting Thursday February 12th for launch to the International Space Station, after weather pushed back the Wednesday window. Meet the international crew of four and find out why this mission will run longer than usual. Our Sun has been active overnight, with sunspot region AR4366 firing off four M-class flares including an M2.8 that triggered a radio blackout over the Pacific. We look at what this means for space weather and aurora watchers. A stunning new study from Penn State, published in PNAS, has rewritten how scientists think amino acids formed in asteroid Bennu — and the implications for where life's ingredients can arise in the universe are profound. Italian scientists have confirmed the first lava tube on Venus, using 30-year-old radar data from NASA's Magellan mission. The structure is larger than any lava tube found on Earth, the Moon, or Mars. And finally — could coal be the key to finding advanced alien civilisations? A provocative new paper in the International Journal of Astrobiology makes the case. All stories sourced from NASA, Nature Communications, PNAS, and Phys.org. Links below. Source Links •       Crew-12 weather delay: nasa.gov/blogs/spacestation •       NSF launch preview: nasaspaceflight.com/2026/02/launch-preview-020926 •       Bennu amino acids (PNAS): doi.org/10.1073/pnas.2517723123 •       Venus lava tube (Nature Communications): doi.org/10.1038/s41467-026-68643-6 •       Aliens and coal: phys.org/news/2026-02-advanced-aliens-exoplanets-large-coal.html •       Solar activity: earthsky.org/sun/sun-news-activity-solar-flare-cme-aurora-updates Chapters / Timestamps (approximate) •       00:00 — Cold Open •       01:00 — Story 1: SpaceX Crew-12 Weather Delay •       05:00 — Story 2: Solar Flare Activity AR4366 •       07:30 — Story 3: Asteroid Bennu & Amino Acid Origins •       10:30 — Story 4: Venus Lava Tube Discovery •       13:30 — Story 5: Alien Civilisations & Coal Deposits •       17:00 — CloseBecome a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-space-news-updates--5648921/support.Sponsor Details:Ensure your online privacy by using NordVPN. To get our special listener deal and save a lot of money, visit www.bitesz.com/nordvpn. You'll be glad you did!Become a supporter of Astronomy Daily by joining our Supporters Club. Commercial free episodes daily are only a click way... Click HereThis episode includes AI-generated content.

ClinicalNews.Org
Lowering Cholesterol in 48 Hours? The Science of Oat Metabolites Ep. 1279 FEB 2026

ClinicalNews.Org

Play Episode Listen Later Feb 8, 2026 8:25


A 2026 randomized controlled trial published in Nature Communications (or similar) investigated the mechanisms behind the cholesterol-lowering effects of oats in patients with metabolic syndrome. While the role of beta-glucan fiber is well-known, this study identifies a secondary, potent pathway: the microbial production of phenolic metabolites. Researchers found that the gut microbiota ferments specific oat components into bioactive compounds that significantly reduce Total-C and LDL-cholesterol levels.The trial demonstrated that consistent oat consumption led to a distinct shift in the gut microbiome profile, favoring bacteria that produce heart-healthy phenolic acids. These metabolites work by regulating lipid metabolism and reducing systemic inflammation, offering a dual-action approach to managing metabolic syndrome. This research underscores the importance of the gut-heart axis and suggests that the benefits of oats are highly dependent on an individual's unique microbial environment.DisclaimersThis information is for educational purposes only and is not medical advice.The results were specifically observed in individuals with metabolic syndrome; effects may vary in healthy populations.Do not discontinue prescribed cholesterol medications without consulting a qualified healthcare professional.Nutritional interventions should be part of a comprehensive lifestyle plan managed by a doctor.#HeartHealth #CholesterolHacks #Oats #MetabolicSyndrome #GutMicrobiome #NutritionScience #HealthyLifestyle #LDL #NaturalRemedies #MicrobiomeDiet #Alchepharma #ScienceUpdate #GutHeartAxisWang Z, et al. Cholesterol-lowering effects of oats induced by microbially produced phenolic metabolites in metabolic syndrome: a randomized controlled trial. Nature Communications. 2026;17(1):6830. doi:10.1038/s41467-026-68303-9.oats cholesterol study 2026, gut bacteria lower ldl, metabolic syndrome diet science, phenolic metabolites oats, oat beta glucan vs polyphenols, natural cholesterol lowering 2026, gut microbiome heart health, clinical trial oats metabolic syndrome, how oats reduce ldl, bioavailable oat metabolites, diet for metabolic syndrome, lipid lowering functional foods, gut heart axis research

Dopolední host
Zastavit borelie hned, jak se dostanou do kůže. Jihočeský objev může zásadně zlepšit léčbu boreliózy

Dopolední host

Play Episode Listen Later Feb 3, 2026 23:52


Jak zastavit borelii poté, co váš kousne klíště a bakterie postupuje do cév? Tuto otázku si už delší dobu klade tým vědců z Biologického centra Akademie věd v Českých Budějovicích. V závěru minulého roku se jim podařilo objasnit, jak se borelie v první fázi svého působení v lidském těle chovají. Jde o úspěch na poli celosvětové vědy, který ocenil i prestižní vědecký časopis Nature Communications.Všechny díly podcastu Dopolední host můžete pohodlně poslouchat v mobilní aplikaci mujRozhlas pro Android a iOS nebo na webu mujRozhlas.cz.

CQFD - La 1ere
Une main robotisée , des bourdons optimistes, l'assistanat de terrain et de vieux chevaux

CQFD - La 1ere

Play Episode Listen Later Feb 1, 2026 55:49


1) Une main robotisée plus fonctionnelle que la nôtre Des chercheurs et des chercheuses de l'EPFL ont développé une main robotisée capable de dépasser certaines limites de la main humaine. Réversible, dotée de plusieurs doigts équivalents et pouvant même se détacher de son bras pour se déplacer seule, elle repense la manière de saisir et de manipuler des objets. Publiée dans Nature Communications, cette recherche ouvre de nouvelles pistes en robotique industrielle et de service, et interroge notre rapport aux technologies qui ne cherchent plus à imiter l'humain, mais à en dépasser les contraintes. Arditë Shabani reçoit Aude Billard, professeure au Laboratoire d'algorithmes et systèmes d'apprentissage de l'EPFL. 2) Chez les bourdons, la bonne humeur est contagieuse Les bourdons seraient capables de se transmettre un état émotionnel positif. Publiée en octobre dans Science, une étude montre que lorsqu'un bourdon en observe un autre "optimiste", il adopte à son tour une lecture plus positive de situations incertaines. Une découverte qui bouscule notre vision de la vie intérieure des insectes et relance le débat sur les émotions animales. Thibaud Gruber, professeur associé à l'Université de Genève, est l'invité d'Anne-Julie Ruz. 3) L'expertise des assistants de terrain sous-estimée Lʹétude du comportement des animaux sauvages bénéficie du travail des spécialistes locaux, notamment les assistants de terrain. En Ouganda, des assistants de terrain identifient les chimpanzés à lʹoreille avec une précision inégalée, surpassant les scientifiques internationaux. Leur expertise, cruciale pour la primatologie, reste pourtant méconnue. Une étude plaide pour leur reconnaissance et valorisation. Cécile Guérin s'entretient avec Adrian Soldati, primatologue, affilié à lʹUniversité de Zurich, collaborateur du Pôle de Recherche National Evolving Language et premier auteur de lʹarticle. 4) Les chevaux: des animaux plus récents qu'il n'y parait Les premiers chevaux seraient apparus bien plus tard quʹon ne le pensait. En effet, le fossile Hyracotherium, longtemps considéré comme le premier cheval, nʹen serait pas un. Selon Jérémy Tissier, paléontologue au Jurassica Museum, les vrais chevaux seraient apparus il y a 50 millions dʹannées,donc bien après. Une étude révèle une évolution complexe, marquée par des pré-chevaux et des impasses. Un sujet de Sarah Dirren.

The Sunday Session with Francesca Rudkin
Michelle Dickinson: nanotechnologist on the new research into jellyfish sleeping habits

The Sunday Session with Francesca Rudkin

Play Episode Listen Later Jan 31, 2026 4:56 Transcription Available


An upside-down jellyfish drifts gently in a shallow lagoon. At first glance, it looks like it's just floating, but scientists have discovered something quietly astonishing - around midday, the jellyfish takes a brief nap to recover from a disturbed night. The fact that jellyfish, which do not have a brain, are sleeping is amazing, and that discovery may completely reshape how we understand why all animals, including humans, need sleep. A new study published in Nature Communications tracked sleep-like behaviour in two simple sea creatures - the upside-down jellyfish (Cassiopea) and the starlet sea anemone (Nematostella). Both belong to an ancient lineage that dates back more than 500 million years, long before brains, backbones, or even eyes evolved. Despite their simplicity, these animals clearly cycle between periods of activity and rest. When they're resting, they respond more slowly to food or flashes of light, a key biological hallmark of sleep seen across the animal kingdom. For decades, scientists have debated what sleep is actually for. Is it about saving energy? Consolidating memories? Clearing out metabolic waste? In humans and other vertebrates, sleep is known to help repair damage in the brain. While we're awake, tiny breaks form in DNA inside our neurons, during sleep, repair mechanisms kick in and fix that damage. Until now, scientists thought this kind of 'neural housekeeping' required a complex brain, but the jellyfish just proved otherwise. The researchers found that while jellyfish and sea anemones are active, DNA damage builds up in their nerve cells -when they rest, that damage is repaired. When scientists deliberately kept the animals awake by altering water currents, the DNA damage increased and so did the amount of sleep the animals needed afterward, mirroring the 'sleep rebound' humans experience after a bad night. When researchers exposed the animals to UV light (which damages DNA), they slept more. Once they'd rested, the damage decreased and their normal rhythms returned. Even more surprising? Adding melatonin, the hormone many humans take for jet lag caused these brainless creatures to fall asleep at unusual times. That suggests melatonin's sleep-inducing role evolved far earlier than scientists thought. Put together, the findings point to a powerful idea: sleep may have started as a cellular defence mechanism. Being awake is stressful for nerve cells as sensory input, movement, and metabolism all create molecular wear and tear. Sleep creates a quiet window of reduced stimulation where essential repairs can happen safely. If even jellyfish need that repair time, then sleep likely evolved before brains, before complex nervous systems, and before animals even had left and right sides. This doesn't mean sleep has only one purpose. In animals with more complex brains, functions like memory consolidation and learning likely layered on top of this ancient repair role, but the study strengthens the idea that protecting DNA may be the most fundamental reason we sleep. The study offers a sobering perspective on modern life, as chronic sleep deprivation in humans has already been linked to neurodegeneration and increased DNA damage. If creatures as simple as jellyfish can't function without sleep, it's a reminder that rest isn't a luxury, it's a biological necessity baked into life itself. LISTEN ABOVESee omnystudio.com/listener for privacy information.

SGP2020
Phát Hiện Chấn Động 160.000 Năm Tuổi: Công Cụ Ghép Cán Đầu Tiên Tại Đông Á

SGP2020

Play Episode Listen Later Jan 28, 2026 13:19


Bạn có tin rằng công nghệ của người tiền sử ở phương Đông từng bị coi là "bảo thủ" và kém phát triển hơn so với phương Tây? Một khám phá khảo cổ học mới nhất vào tháng 1 năm 2026 đã đập tan định kiến này.Trong tập này, chúng ta sẽ cùng du hành về miền trung Trung Quốc, đến với di chỉ Xigou (Tây Câu) để khám phá những bí mật nằm sâu trong lớp trầm tích 160.000 năm tuổi,.Những điểm nổi bật trong tập này:• Phát hiện chấn động: Hơn 2.600 công cụ đá đã được khai quật, bao gồm bằng chứng sớm nhất về công cụ ghép cán (hafted tools) tại Đông Á—một kỹ thuật phức tạp đòi hỏi tư duy lập kế hoạch cao độ,.• Tác giả bí ẩn: Ai là người tạo ra chúng? Cùng tìm hiểu về các ứng viên tiềm năng như Homo juluensis, Homo longi và sự đa dạng của các loài người cổ đại cùng tồn tại trong khu vực,.• Ý nghĩa lịch sử: Tại sao phát hiện này lại lật ngược quan điểm cho rằng công nghệ đá ở Đông Á đơn giản hơn Châu Phi hay Châu Âu,?• Khả năng thích nghi: Cách tổ tiên chúng ta sử dụng những công cụ này để chế biến thực vật, tre nứa và sinh tồn qua những biến đổi môi trường khắc nghiệt suốt 90.000 năm,.Nghiên cứu được công bố trên tạp chí khoa học danh tiếng Nature Communications.

Wissensnachrichten - Deutschlandfunk Nova
Roboter-Blumen, Schmetterlings-Nahrung, KI-Schwärme

Wissensnachrichten - Deutschlandfunk Nova

Play Episode Listen Later Jan 26, 2026 6:03


Die Themen in den Wissensnachrichten: +++ Bürofenster beschatten mit Roboter-Blumen +++ Schmetterlings-Nahrung wird durch Klimawandel zuckerärmer +++ Neue KI-Schwärme fluten das Internet mit Falschinfos +++**********Weiterführende Quellen zu dieser Folge:Architectural swarms for responsive façades and creative expression, Science Robotics, 21.01.2026Warming-Mediated Decreases in Nectar Quality Translate Into Lower Energy Reserves of the Monarch Butterfly (Danaus plexippus), Global Change Biology Communications, 20.01.2026How malicious AI swarms can threaten democracy, Science, 22.01.2026Milano Cortina 2026: Warming Winter Olympics, Climate Central, 21.01.2026Cholesterol-lowering effects of oats induced by microbially produced phenolic metabolites in metabolic syndrome: a randomized controlled trial, Nature Communications, 14.01.2026Alle Quellen findet ihr hier.**********Ihr könnt uns auch auf diesen Kanälen folgen: TikTok und Instagram .

EN POCAS PALABRAS
¿Cómo funciona el lenguaje en el cerebro?

EN POCAS PALABRAS

Play Episode Listen Later Jan 23, 2026 4:35


Un estudio científico publicado en Nature Communications indicó que el cerebro humano comprende el lenguaje hablado mediante un proceso similar al que utilizan los sistemas de inteligencia artificial, en particular los modelos avanzados de procesamiento de texto. Se analizó la actividad cerebral de nueve personas mientras escuchaban un podcast de 30 minutos. Los resultados mostraron que las respuestas neuronales en etapas tardías coinciden con las capas más profundas de modelos tecnológicos diseñados para interpretar lenguaje.

#plugintodevin - Your Mark on the World with Devin Thorpe
From Space to StartEngine: Revolutionizing Diagnostics with Single-Drop Blood Testing

#plugintodevin - Your Mark on the World with Devin Thorpe

Play Episode Listen Later Jan 22, 2026 25:51


Superpowers for Good should not be considered investment advice. Seek counsel before making investment decisions. When you purchase an item, launch a campaign or create an investment account after clicking a link here, we may earn a fee. Engage to support our work.Watch the show on television by downloading the e360tv channel app to your Roku, LG or AmazonFireTV. You can also see it on YouTube.Devin: What is your superpower?Eugene: Staying focused on a North Star.Eugene Chan, CEO and founder of rHEALTH, has taken blood diagnostics to new heights—literally. His innovative technology, capable of analyzing dozens of biomarkers from a single drop of blood, was tested aboard the International Space Station (ISS). In today's episode, Eugene shared the remarkable journey of rHEALTH, from competing with top companies for a NASA partnership to launching its device into space.What sets rHEALTH apart is its proven reliability in extreme conditions, including the zero-gravity environment of space. Eugene explained, “We tested this technology on the International Space Station with astronaut Samantha Cristoforetti, who operated the device and obtained precise values from single drops of sample. They did the analysis using our device and got absolutely the right answers.” This achievement underlines the robustness and accuracy of rHEALTH's technology, qualities that distinguish it from other attempts at single-drop blood diagnostics.Unlike Theranos, which famously failed to deliver on similar promises, rHEALTH's technology has been rigorously vetted. Eugene highlighted the grueling process of earning NASA's trust. “To be the one company selected to demonstrate our novel technology on the ISS was a huge undertaking,” he said. He recounted the intense competition and NASA's exacting standards, which included testing the device's functionality during zero-gravity parabolic flights.Now, Eugene and his team are bringing this groundbreaking technology to the public with a regulated crowdfunding campaign on StartEngine. “You don't have to be a Silicon Valley elite or a Boston venture capitalist to participate,” I noted during the episode. With this campaign, everyday investors have the opportunity to support a proven technology poised to revolutionize healthcare.The implications of rHEALTH's success are profound. If it works in space, it can work in remote clinics, underserved communities, and even in people's homes. This technology has the potential to make diagnostics more accessible, empowering individuals to take control of their health.Eugene's vision, combined with rHEALTH's proven track record, makes this an exciting investment opportunity. Visit StartEngine to learn more and become part of this revolutionary journey.tl;dr:Eugene Chan shared how rHEALTH's diagnostic technology was tested and proven aboard the International Space Station.He explained the rigorous process of competing with other companies to secure NASA's trust.rHEALTH's crowdfunding campaign on StartEngine makes investing in this revolutionary technology accessible to all.Eugene highlighted the importance of his North Star: improving human health with innovative solutions.He shared advice on maintaining focus and using challenges as opportunities to achieve big goals.How to Develop Staying Focused on a North Star As a SuperpowerEugene's superpower is his ability to maintain a relentless focus on his “North Star”—the overarching goal of improving human health. As he explained, “The North Star has always been to improve the human condition and help us improve human health.” For Eugene, this guiding principle has driven his work through challenges, from competing for NASA's attention to developing groundbreaking diagnostic technology.One illustrative story of this superpower came during a pivotal moment in Eugene's career. While competing in the XPRIZE competition, he found himself grappling with a flawed prototype. It was during this time, sitting at his wife's bedside after the birth of their child, that the concept for rHEALTH's current device was born. Combining the pressure of the competition, the inspiration of his newborn daughter, and his unwavering focus on creating a robust solution, Eugene developed the technology that would later achieve success in space.Eugene also shared actionable tips for developing this superpower:Identify your personal North Star—a goal or mission that deeply resonates with you.Let that North Star guide your decisions, especially during challenging times.Stay committed to your mission, even when facing setbacks or obstacles.Use external pressures, like deadlines or competitions, to fuel innovation and progress.By following Eugene's example and advice, you can make staying focused on a North Star a skill. With practice and effort, you could make it a superpower that enables you to do more good in the world.Remember, however, that research into success suggests that building on your own superpowers is more important than creating new ones or overcoming weaknesses. You do you!Guest ProfileEugene Chan (he/him):CEO, Founder, rHEALTHAbout rHEALTH: rHEALTH has worked with NASA to develop a miniaturized diagnostic test system to keep astronauts healthy on the way to Mars. We have successfully tested this onboard the International Space Station and published the results in Nature Communications, demonstrating results from blood in minutes in extreme environments. The technology shrinks a central clinical lab and a team of doctors in a form suitable for everyday use. Comprehensive lab-quality analysis can be performed by anyone, fundamentally shifting diagnostics from centralized facilities to the point-of-care and homes. The focus is to usher in Diagnostics 2.0, allowing high-value multiplexed diagnostics.Website: rhealth.comOther URL: startengine.com/offering/rhealthBiographical Information: Dr. Chan is a physician-inventor. He is currently Founder, CEO of rHEALTH, and President, CSO of DNA Medicine Institute, a medical innovation laboratory. He has been honored as Esquire magazine's Best and Brightest, one of MIT Technology Review's Top 100 Innovators, and an XPRIZE winner. His work has contributed to the birth of next-generation sequencing, health monitoring in remote environments, and therapeutics. Dr. Chan holds over 60 patents and publications, with work funded by the NIH, NASA, and USAF. Dr. Chan received an A.B. in Biochemical Sciences from Harvard College summa cum laude in 1996, received an M.D. from Harvard Medical School with honors in 2007, and trained in medicine at the Brigham and Women's Hospital. He has been in zero gravity and led the team that demonstrated the rHEALTH ONE bioanalyzer onboard the International Space Station.LinkedIn Profile: linkedin.com/in/eugene-chan-4220045Personal Twitter Handle: @Dr_EugeneChanSupport Our SponsorsOur generous sponsors make our work possible, serving impact investors, social entrepreneurs, community builders and diverse founders. Today's advertisers include Crowdfunding Made Simple. Learn more about advertising with us here.Max-Impact Members(We're grateful for every one of these community champions who make this work possible.)Brian Christie, Brainsy | Cameron Neil, Lend For Good | Carol Fineagan, Independent Consultant | Hiten Sonpal, RISE Robotics | John Berlet, CORE Tax Deeds, LLC. | Justin Starbird, The Aebli Group | Lory Moore, Lory Moore Law | Mark Grimes, Networked Enterprise Development | Matthew Mead, Hempitecture | Michael Pratt, Qnetic | Mike Green, Envirosult | Dr. Nicole Paulk, Siren Biotechnology | Paul Lovejoy, Stakeholder Enterprise | Pearl Wright, Global Changemaker | Scott Thorpe, Philanthropist | Sharon Samjitsingh, Health Care Originals | Add Your Name HereUpcoming SuperCrowd Event CalendarIf a location is not noted, the events below are virtual.SuperGreen Live, January 22–24, 2026, livestreaming globally. Organized by Green2Gold and The Super Crowd, Inc., this three-day event will spotlight the intersection of impact crowdfunding, sustainable innovation, and climate solutions. Featuring expert-led panels, interactive workshops, and live pitch sessions, SuperGreen Live brings together entrepreneurs, investors, policymakers, and activists to explore how capital and climate action can work hand in hand. With global livestreaming, VIP networking opportunities, and exclusive content, this event will empower participants to turn bold ideas into real impact. Don't miss your chance to join tens of thousands of changemakers at the largest virtual sustainability event of the year. Learn more about sponsoring the event here. Interested in speaking? Apply here. Support our work with a tax-deductible donation here.SuperCrowd Impact Member Networking Session: Impact (and, of course, Max-Impact) Members of the SuperCrowd are invited to a private networking session on January 27th at 1:30 PM ET/10:30 AM PT. Mark your calendar. We'll send private emails to Impact Members with registration details.Community Event CalendarSuccessful Funding with Karl Dakin, Tuesdays at 10:00 AM ET - Click on Events.Join C-AR Annual Reporting: Requirements, Deadlines, and Lessons Learned from the Field on January 14, 2026, an informative online webinar designed to help crowdfunding issuers and professionals clearly understand C-AR annual reporting requirements, key deadlines, and real-world insights to stay compliant and prepared.Join UGLY TALK: Women Tech Founders in San Francisco on January 29, 2026, an energizing in-person gathering of 100 women founders focused on funding strategies and discovering SuperCrowd as a powerful alternative for raising capital.If you would like to submit an event for us to share with the 10,000+ changemakers, investors and entrepreneurs who are members of the SuperCrowd, click here.Manage the volume of emails you receive from us by clicking here.We use AI to help us write compelling recaps of each episode. Get full access to Superpowers for Good at www.superpowers4good.com/subscribe

MRS Bulletin Materials News Podcast
Episode 2: Ice formation tolerant to nanoscale defects

MRS Bulletin Materials News Podcast

Play Episode Listen Later Jan 12, 2026 4:17 Transcription Available


In this podcast episode, MRS Bulletin's Sophia Chen interviews Jingshan Du from Pacific Northwest National Laboratory about his group's high-resolution characterization of ice formation. Freezing liquid water between amorphous carbon membranes into single-crystalline ice enabled high-resolution transmission electron microscope imaging. The carbon membranes protected the ice from sublimation in the high vacuum. It was also a good electric conductor, which helped reduce charge buildup on the ice. Charge buildup can cause additional damage to the crystal. From the images they took, the researchers discovered how ice remains stable even with defects such as skewed crystal structure. This work was published in a recent issue of Nature Communications.

ice charge formation freezing bulletin tolerant defects materials science nature communications pacific northwest national laboratory nanoscale materials research sophia chen
Wissensnachrichten - Deutschlandfunk Nova
Gesichtsausdrücke, Meereserwärmung, Hunde

Wissensnachrichten - Deutschlandfunk Nova

Play Episode Listen Later Jan 9, 2026 5:55


Die Themen in den Wissensnachrichten: +++ Was im Hirn passiert, wenn wir das Gesicht verziehen +++ Ozeane haben 2025 Rekordmenge an Wärme aufgenommen +++ Manche Hunde können Wörter allein durchs Zuhören lernen +++**********Weiterführende Quellen zu dieser Folge:Facial gestures are enacted through a cortical hierarchy of dynamic and stable codes, Science, 08.01.2026Ocean Heat Content Sets Another Record in 2025, Advances in Atmospheric Sciences, 09.01.2025Dogs with a large vocabulary of object labels learn new labels by overhearing like 1.5-year-old infants, Science, 08.01.2026Prevalence of plastic waste as a household fuel in low-income communities of the Global South, Nature Communications, 08.01.2026Adaptive spread of a sexually selected syndrome eliminates an ancient color polymorphism in wall lizards, Science, 01.01.2026Alle Quellen findet ihr hier.**********Ihr könnt uns auch auf diesen Kanälen folgen: TikTok und Instagram .

Wissensnachrichten - Deutschlandfunk Nova
Klimaziel 2025, Fliegen und CO2, Ahrtal

Wissensnachrichten - Deutschlandfunk Nova

Play Episode Listen Later Jan 7, 2026 6:50


Die Themen in den Wissensnachrichten: +++ Klimaziel 2025 erreicht +++ effizienter Fliegen, weniger CO2 +++ Gefahr durch Sturzflut an der Ahr unterschätzt +++ **********Weiterführende Quellen zu dieser Folge:Deutschland verliert Tempo beim Klimaschutz – Wärmepumpen und E-Autos holen nur langsam auf, Agora Energiewende, 07.01.26.Large carbon dioxide emissions avoidance potential in improved commercial air transport efficiency, Nature Communications, 07.01.2026Fluvial deposits of the Ahr river (western Germany) reveal recurring high-magnitude flood events over the last 1,500 years, Earth Surface, Process and Landforms, 04.01.2026Biological signatures of history: Examination of composite biomes and Y chromosome analysis from da Vinci-associated cultural artifacts, bioRxiv (Preprint-Server), 06.01.2026The Real da Vinci Code, Science.org, Zugriff 07.01.2026Alle Quellen findet ihr hier.**********Ihr könnt uns auch auf diesen Kanälen folgen: TikTok und Instagram .

Science Salon
What Makes You "You" When Everything Is Just Atoms?

Science Salon

Play Episode Listen Later Jan 6, 2026 110:20


What is consciousness, really? Why does it not simply switch on at a single moment? Neuroscientist Niko Kukushkin explains how even single cells can show primitive forms of memory and agency, why the human mind is not a mysterious force floating above biology, and why reducing it to "just neurons" misses what actually matters. He also discusses the evolutionary gamble of complexity, why bacteria still dominate the planet, and how abstraction and memory together give rise to thought. At the center of the conversation is an unsettling question: Why does it feel so special to be you when science says that you are nothing but a chemical reaction—a collection of atoms and molecules, like rocks, paperclips, and everything else in the physical universe? Nikolay Kukushkin is a clinical associate professor at New York University and a research fellow at NYU's Center for Neural Science, where he studies how temporal patterns shape memory formation. He holds degrees from St. Petersburg State University and Oxford University, and completed postdoctoral training at Harvard Medical School. He is the author of a recent paper in Nature Communications demonstrating canonical memory in non-neural cells. His book is One Hand Clapping.

Wissensnachrichten - Deutschlandfunk Nova
Klimawandel, Musik im Auto, Hirsch-Pipi

Wissensnachrichten - Deutschlandfunk Nova

Play Episode Listen Later Dec 30, 2025 5:58


Die Themen in den Wissensnachrichten: +++ So hat der Klimawandel 2025 das Wetter beeinflusst +++ Das macht Musik beim Autofahren mit uns +++ Weißwedelhirsche markieren ihr Revier mit leuchtendem Pipi +++ **********Weiterführende Quellen zu dieser Folge:Unequal evidence and impacts, limits to adaptation: Extreme Weather in 2025, WWA, 29.12.2025Music can affect your driving – but not always how you'd expect, The Conversation, 28.12.2025White-tailed Deer Signpost Photoluminescence, Ecology and Evolution, 14.12.2025Testing the own-age bias in face recognition among younger and older adults via the Face Inversion Effect, Perception, 15.12.2025Ultrablack wool textiles inspired by hierarchical avian structure, Nature Communications, 26.11.25Alle Quellen findet ihr hier.**********Ihr könnt uns auch auf diesen Kanälen folgen: TikTok und Instagram .

The Neuro Experience
The Science of Vigorous Activity: Why 30 Minutes of This Exercise Is Worth 4 Hours of Walking

The Neuro Experience

Play Episode Listen Later Dec 23, 2025 39:02


What if thousands of steps of gentle walking aren't giving you the brain protection you think they are? In this solo episode, I break down one of the most important exercise studies published in Nature Communications and what it means for your brain, longevity, and Alzheimer's risk. Tracking over 73,000 people for eight years using wearables, the findings are shocking: one minute of vigorous exercise is worth up to 10 minutes of moderate activity — not the outdated 2-to-1 rule. For diabetes prevention, it's nearly 10-to-1. For cardiovascular mortality, it's 8-to-1. And here's what no one is saying: every outcome measured — heart disease, diabetes, metabolic dysfunction — is an independent risk factor for Alzheimer's and dementia. I explain why vigorous exercise is so powerful for your brain: shear stress that strengthens blood vessels, lactate that triggers BDNF, muscle fiber recruitment that protects against falls and cognitive decline, and glucose regulation that defends against insulin resistance — a driver of neurodegeneration. Think vigorous exercise is out of reach? Good news: the study defines it as brisk stairs, carrying groceries, or playing actively with your kids. No gym required — just effort. Just 3–4 minutes of vigorous bursts per day can reduce all-cause mortality by 40% and cardiovascular events by nearly 50%. For women over 40, this is critical. Two-thirds of Alzheimer's cases are women, and perimenopause is a vulnerability window for the brain. Vigorous exercise can partially compensate for declining estrogen by improving glucose regulation, reducing inflammation, and protecting the brain in ways gentle movement cannot. *** Reduce your risk of Alzheimer's with my science-backed protocol for women 30+: https://go.neuroathletics.com.au/brain-code-yt Subscribe to The Neuro Experience for more conversations at the intersection of brain science and performance. I'm committed to bringing you evidence-based insights that you can apply to your own health journey. *** A huge thank you to my sponsors for supporting this episode. Check them out and enjoy exclusive discounts: Rho NutritionYou can get 20% off with the code NEURO at https://rhonutrition.com Function HealthVisit https://functionhealth.com/louisa or use gift code NEURO100 at sign-up to own your health. AquaTruGo to https://AquaTru.com now for 20% off using promo code NEURO. TimelineHead to https://www.timeline.com/neuro to get 20% off. Cure HydrationGet 20% off your first order at https://curehydration.com/neuro with code NEURO. *** I'm Louisa Nicola — clinical neurophysiologist — Alzheimer's prevention specialist — founder of Neuro Athletics. My mission is to translate cutting-edge neuroscience into actionable strategies for cognitive longevity, peak performance, and brain disease prevention. If you're committed to optimizing your brain — reducing Alzheimer's risk — and staying mentally sharp for life, you're in the right place. Stay sharp. Stay informed. Join thousands who subscribe to the Neuro Athletics Newsletter → https://bit.ly/3ewI5P0 Instagram: https://www.instagram.com/louisanicola_/ Twitter : https://twitter.com/louisanicola_ Topics discussed:00:00:00 Introduction: The Exercise Intensity Revolution 00:01:02 The Study That Changes Everything 00:04:50 The Flawed Foundation: Why Guidelines Were Wrong 00:06:50 The Real Numbers: 4 to 10 Times More Powerful 00:08:53 The Brain Connection No One Is Talking About 00:15:32 Mechanism 1: Shear Stress and Cerebral Blood Flow 00:17:38 Mechanism 2: Lactate and BDNF Production 00:19:25 Mechanism 3: Type 2 Muscle Fibers and Myokines 00:24:30 Mechanism 4: Glucose Regulation and Mitochondrial Health 00:28:18 VILPA: The 3-Minute Daily Game Changer 00:32:16 Women and Menopause: The Critical Window 00:35:19 Practical Protocols: What to Do Starting Today Learn more about your ad choices. Visit megaphone.fm/adchoices

No es un día cualquiera
No es un día cualquiera - La noticia semanal de ciencia con Manuel Toharia

No es un día cualquiera

Play Episode Listen Later Dec 20, 2025 14:56


Manuel Toharia nos habla de dos avances sorprendentes:Un sistema creado en el MIT que permite obtener agua potable del aire en solo minutos, incluso en las regiones más secas del planeta. El estudio se ha publicado en Nature Communications.Las pruebas en China del tren de levitación magnética Maglev T‑Flight, que ya alcanza los 1.000 km/h y aspira a superar los 2.000. La tecnología está lista, pero el gran reto será su mantenimiento en trayectos muy largos.Escuchar audio

Intelligence Unshackled: a show for people with brains (a Brainjo Production)

Much of what we talk about on Better Brain Fitness resolves around the demand-driven decline model we published. Well...a new study just published in Nature Communications gave that model the best test to date, and the results are pretty darn exciting. So of course we had to do an episode about it! The study looks at the relationship between brain aging and creative activities like music, dance, art, and video gaming. Tommy walks through the study and explains why this matters for anyone thinking about their long-term cognitive health. What You'll Learn: A more sensitive way to measure brain aging than structural scans The connection between music, dance, art, and video gaming on brain aging The effect of 30 hours of video gaming on brain aging, the kinds of video games that have the greatest impact (and why traditional "brain games" haven't been as successful) What this research tells us about whether cognitive decline is reversible The dose-response relationship between complex activities and brain health   To submit a question for us to answer on the podcast, go to brainjo.academy/question. To subscribe to the free Better Brain Fitness newsletter, join us when we record live, and get our Guide and Checklist to essential blood tests and nutrients, go to: betterbrain.fitness. Click here to pre-order Dr. Wood's book, "The Stimulated Mind." Click here to grab Dr. Turknett's bestselling book, "Anyone Can Play Music" Intro and Outro music composed and produced by Julienne Ellen.   

Unbiased Science
What the Cluck Is Going On with Bird Flu?

Unbiased Science

Play Episode Listen Later Dec 17, 2025 34:20


In this episode, Jess and Sarah discuss the current state of bird flu, particularly H5N1, with expert Dr. Chad Costley. They explore the implications of recent CDC updates, the evolution of viruses, and the innovative development of intranasal vaccines. The conversation highlights the importance of addressing vaccine misinformation and the potential for a universal flu vaccine, emphasizing the need for continued public health efforts and the role of dedicated scientists in combating misinformation. Watch the conversation on YouTube: https://youtu.be/-Vlb14O_BeA (00:00) Intro & Public Health Update (03:07) What Is A News Item That Caught Your Attention And Why? (04:20) What Is Bird Flu? (07:11) How Could Bird Flu Become A Worst Case Scenario? (10:02) Exiting Research On A Possible Bird Flu Vaccine (13:38) Technology Behind The New Vaccine Candidate (17:43) Importance of Adjuvants (20:48) Where Does The New H5 Vaccine Stand In Development? (24:21) The Idea Of A Universal Flu Vaccine (29:25) What Is Giving Hope In Public Health? https://www.nature.com/articles/s41467-025-64686-3 https://www.globenewswire.com/news-release/2025/11/06/3182263/0/en/BlueWillow-Biologics-Intranasal-Bird-Flu-Vaccine-Shows-Signs-of-Broad-Immune-Response-in-Phase-I-Clinical-Trial-Published-in-Nature-Communications.html https://www.linkedin.com/in/chad-costley-a631a8164/ https://www.cidrap.umn.edu/avian-influenza-bird-flu/preliminary-human-bird-flu-case-reported-washington-state ----------------------------------------------------------------------------------------------------------------------- Interested in advertising with us? Please reach out to advertising@airwavemedia.com, with “Unbiased Science” in the subject line. PLEASE NOTE: The discussion and information provided in this podcast are for general educational, scientific, and informational purposes only and are not intended as, and should not be treated as, medical or other professional advice for any particular individual or individuals. Every person and medical issue is different, and diagnosis and treatment requires consideration of specific facts often unique to the individual. As such, the information contained in this podcast should not be used as a substitute for consultation with and/or treatment by a doctor or other medical professional. If you are experiencing any medical issue or have any medical concern, you should consult with a doctor or other medical professional. Further, due to the inherent limitations of a podcast such as this as well as ongoing scientific developments, we do not guarantee the completeness or accuracy of the information or analysis provided in this podcast, although, of course we always endeavor to provide comprehensive information and analysis. In no event may Unbiased Science or any of the participants in this podcast be held liable to the listener or anyone else for any decision allegedly made or action allegedly taken or not taken allegedly in reliance on the discussion or information in this podcast or for any damages allegedly resulting from such reliance. The information provided herein do not represent the views of our employers. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Unbiased Science
What the Cluck Is Going On with Bird Flu?

Unbiased Science

Play Episode Listen Later Dec 17, 2025 35:46


In this episode, Jess and Sarah discuss the current state of bird flu, particularly H5N1, with expert Dr. Chad Costley. They explore the implications of recent CDC updates, the evolution of viruses, and the innovative development of intranasal vaccines. The conversation highlights the importance of addressing vaccine misinformation and the potential for a universal flu vaccine, emphasizing the need for continued public health efforts and the role of dedicated scientists in combating misinformation. Watch the conversation on YouTube: https://youtu.be/-Vlb14O_BeA (00:00) Intro & Public Health Update (03:07) What Is A News Item That Caught Your Attention And Why? (04:20) What Is Bird Flu? (07:11) How Could Bird Flu Become A Worst Case Scenario? (10:02) Exiting Research On A Possible Bird Flu Vaccine (13:38) Technology Behind The New Vaccine Candidate (17:43) Importance of Adjuvants (20:48) Where Does The New H5 Vaccine Stand In Development? (24:21) The Idea Of A Universal Flu Vaccine (29:25) What Is Giving Hope In Public Health? https://www.nature.com/articles/s41467-025-64686-3 https://www.globenewswire.com/news-release/2025/11/06/3182263/0/en/BlueWillow-Biologics-Intranasal-Bird-Flu-Vaccine-Shows-Signs-of-Broad-Immune-Response-in-Phase-I-Clinical-Trial-Published-in-Nature-Communications.html https://www.linkedin.com/in/chad-costley-a631a8164/ https://www.cidrap.umn.edu/avian-influenza-bird-flu/preliminary-human-bird-flu-case-reported-washington-state ----------------------------------------------------------------------------------------------------------------------- Interested in advertising with us? Please reach out to advertising@airwavemedia.com, with “Unbiased Science” in the subject line. PLEASE NOTE: The discussion and information provided in this podcast are for general educational, scientific, and informational purposes only and are not intended as, and should not be treated as, medical or other professional advice for any particular individual or individuals. Every person and medical issue is different, and diagnosis and treatment requires consideration of specific facts often unique to the individual. As such, the information contained in this podcast should not be used as a substitute for consultation with and/or treatment by a doctor or other medical professional. If you are experiencing any medical issue or have any medical concern, you should consult with a doctor or other medical professional. Further, due to the inherent limitations of a podcast such as this as well as ongoing scientific developments, we do not guarantee the completeness or accuracy of the information or analysis provided in this podcast, although, of course we always endeavor to provide comprehensive information and analysis. In no event may Unbiased Science or any of the participants in this podcast be held liable to the listener or anyone else for any decision allegedly made or action allegedly taken or not taken allegedly in reliance on the discussion or information in this podcast or for any damages allegedly resulting from such reliance. The information provided herein do not represent the views of our employers. Learn more about your ad choices. Visit megaphone.fm/adchoices

Authentic Biochemistry
Mitochondrial/Gut Axis NAD+ VIII Authentic Biochemistry Podcast 15DECEMBER25 Dr Daniel J Guerra.

Authentic Biochemistry

Play Episode Listen Later Dec 16, 2025 51:33


ReferencesHepatology. 2023 Apr 17;77(5):1654–1669 Nature Communications 2023. v. 14, Article number: 2250 Comprehensive Gut Microbiota 2022, Pages 201-219Javits and Springer. 1953. Santa Baby, MMhttps://music.youtube.com/watch?v=j0oClr4S2oc&si=b_RkrBTm0za9GvoeLennon/McCartney 1969 Oh Darling. Beatleshttps://music.youtube.com/watch?v=erMgpfiOMSU&si=P9E8N1EVGyscakuR

Podcast Notes Playlist: Latest Episodes
#108 The Best Type of Exercise for Longevity

Podcast Notes Playlist: Latest Episodes

Play Episode Listen Later Dec 15, 2025


Found My Fitness - Rhonda Patrick: Read the notes at at podcastnotes.org. Don't forget to subscribe for free to our newsletter, the top 10 ideas of the week, every Monday --------- Get access to more than 200 episodes of my premium podcast (The Aliquot) when you sign up as a FoundMyFitness Premium Member Download my "How to Train According to the Experts" guide One minute of vigorous exercise may be worth up to ten minutes of "moderate" cardio for extending lifespan and preventing chronic disease. In this Journal Club episode, Rhonda Patrick, PhD and endurance athlete Brady Holmer dissect a new Nature Communications study of more than 70,000 adults showing that vigorous intensity is roughly 4–10x more potent than moderate activity for reducing all-cause mortality, cardiovascular events, type 2 diabetes, and cancer outcomes—far beyond the long-standing 1:2 rule embedded in global exercise guidelines. Timestamps: (00:00) Introduction (07:01) What exactly is the 1:2 rule for exercise intensity? (08:18) Calorie burn vs. longevity—origins of the 1:2 rule (11:15) What counts as 'vigorous' exercise, really? (13:35) Where the exercise guidelines fall short (14:19) Can your wearable predict disease risk years in advance? (20:11) Is vigorous activity easier to achieve than people think? (22:47) How researchers avoided the 'healthy user bias' (23:59) Health equivalence ratio—a better way to measure exercise benefits? (25:45) Is vigorous exercise truly 4–10x more effective? (29:55) Can one vigorous minute match an hour of gentle walking? (32:02) Why vigorous activity—not gentle—offers dose-dependent benefits (33:50) Is vigorous exercise 5x better at preventing heart attacks & strokes? (34:24) Why vigorous activity stands out for cancer prevention (34:59) Does zone 2 qualify as vigorous exercise? (36:11) Dose-response comparison—vigorous vs. moderate vs. light activity (37:22) Is vigorous exercise the secret to younger arteries? (43:15) Why aging hearts need intensity (46:09) Can vigorous exercise halt your VO₂ max decline? (47:26) Why moderate exercise alone might not improve VO₂ max (49:21) Is vigorous exercise 10x more powerful at preventing diabetes? (55:48) Mitochondrial biogenesis—why intensity is essential (58:40) Can you directly measure mitochondrial health? (1:00:57) Does vigorous exercise kill circulating tumor cells? (1:07:15) Why vigorous intensity triggers beneficial hormone changes (1:08:05) Can vigorous activity protect older adults from falls? (1:12:36) Does vigorous exercise combat inflammation? (1:14:29) Is high-intensity training the key to a younger brain? (1:16:01) Is vigorous exercise more powerful than we realized? (1:17:50) Can the benefits of vigorous exercise fit into a pill? (1:19:08) How small doses of intensity might extend your lifespan (1:23:15) Do short bursts of vigorous movement match full workouts? (1:27:26) Why your wearable might undervalue short vigorous bouts (1:30:06) Can planned micro-workouts replace traditional gym sessions? (1:35:10) Why exercise guidelines urgently need updating (1:46:35) Does light activity still offer real benefits? (1:49:04) Is vigorous exercise safe for older adults? (1:53:28) Are high-intensity workouts detrimental to female hormones? (1:58:02) Safe vigorous exercise options—even with chronic illness (1:59:05) The 80/20 rule for balancing intensity and recovery (2:01:30) Inside Brady's routine—how much vigorous exercise is optimal? (2:05:17) Can vigorous activity boost kids' brainpower (and grades)? (2:08:14) Are we significantly underestimating vigorous exercise benefits? (2:10:03) Why chasing steps isn't the answer Show notes are available by clicking here Watch this episode on YouTube

Reviewer 2 does geoengineering
Festive snowy forests - D'Souza

Reviewer 2 does geoengineering

Play Episode Listen Later Dec 13, 2025 72:58


What could be more festive than carbon storage in snowy evergreen forests?@geoengineering1 interviews Kevin Bradley D'Souza, a postdoctoral researcher at the University of Waterloo, about the real climate potential of reforesting Boreal forests. Kevin explains the crucial role these forests play in carbon storage, biodiversity, and permafrost protection, while noting that reforestation in the Boreal comes with important challenges. The conversation explores key factors such as albedo effects, wildfire risks, and the importance of Indigenous perspectives in forest management. Kevin also stresses the need for careful, multi-dimensional approaches to reforestation and urges caution around commercial forest-based carbon credits, given the scientific uncertainties that still remain.Papers discussed:Dsouza, K. B., Ofosu, E., Salkeld, J., Boudreault, R., Moreno-Cruz, J., & Leonenko, Y. (2025). Assessing the climate benefits of afforestation in the Canadian Northern Boreal and Southern Arctic. Nature Communications, 16(1), 1964. https://doi.org/10.1038/s41467-025-56699-9Dsouza, K. B., Ofosu, E., Boudreault, R., Moreno-Cruz, J., & Leonenko, Y. (2025). Substantial carbon removal capacity of Taiga reforestation and afforestation at Canada's boreal edge. Communications Earth & Environment, 6(1), 893. https://doi.org/10.1038/s43247-025-02822-zTo stay updated on all things CDR-related, subscribe to the Carbon Removal Updates Substack newsletter: https://carbonremovalupdates.substack.com/

ZOE Science & Nutrition
ZOE's best health tips of 2025 - Part 1.

ZOE Science & Nutrition

Play Episode Listen Later Dec 11, 2025 44:23


This special episode brings together the moments from 2025 that listeners told us had the biggest impact on how they eat, think, and feel. It's been a year full of surprising insights, practical shifts, and ideas that made healthy eating feel a little more doable. From gut health breakthroughs to simple food habits that spark real change, these clips highlight the advice that resonated most - that people returned to, shared, and said genuinely helped them feel better. Whether you're pausing to take stock of the year or simply looking for small ideas to weave into everyday life, this episode offers some science-backed inspiration you can carry forward in your own way. Unwrap the truth about your food

FoundMyFitness
#108 The Best Type of Exercise for Longevity

FoundMyFitness

Play Episode Listen Later Dec 7, 2025 138:49


Get access to more than 200 episodes of my premium podcast (The Aliquot) when you sign up as a FoundMyFitness Premium Member Download my "How to Train According to the Experts" guide One minute of vigorous exercise may be worth up to ten minutes of "moderate" cardio for extending lifespan and preventing chronic disease. In this Journal Club episode, Rhonda Patrick, PhD and endurance athlete Brady Holmer dissect a new Nature Communications study of more than 70,000 adults showing that vigorous intensity is roughly 4–10x more potent than moderate activity for reducing all-cause mortality, cardiovascular events, type 2 diabetes, and cancer outcomes—far beyond the long-standing 1:2 rule embedded in global exercise guidelines. Timestamps: (00:00) Introduction (07:01) What exactly is the 1:2 rule for exercise intensity? (08:18) Calorie burn vs. longevity—origins of the 1:2 rule (11:15) What counts as 'vigorous' exercise, really? (13:35) Where the exercise guidelines fall short (14:19) Can your wearable predict disease risk years in advance? (20:11) Is vigorous activity easier to achieve than people think? (22:47) How researchers avoided the 'healthy user bias' (23:59) Health equivalence ratio—a better way to measure exercise benefits? (25:45) Is vigorous exercise truly 4–10x more effective? (29:55) Can one vigorous minute match an hour of gentle walking? (32:02) Why vigorous activity—not gentle—offers dose-dependent benefits (33:50) Is vigorous exercise 5x better at preventing heart attacks & strokes? (34:24) Why vigorous activity stands out for cancer prevention (34:59) Does zone 2 qualify as vigorous exercise? (36:11) Dose-response comparison—vigorous vs. moderate vs. light activity (37:22) Is vigorous exercise the secret to younger arteries? (43:15) Why aging hearts need intensity (46:09) Can vigorous exercise halt your VO₂ max decline? (47:26) Why moderate exercise alone might not improve VO₂ max (49:21) Is vigorous exercise 10x more powerful at preventing diabetes? (55:48) Mitochondrial biogenesis—why intensity is essential (58:40) Can you directly measure mitochondrial health? (1:00:57) Does vigorous exercise kill circulating tumor cells? (1:07:15) Why vigorous intensity triggers beneficial hormone changes (1:08:05) Can vigorous activity protect older adults from falls? (1:12:36) Does vigorous exercise combat inflammation? (1:14:29) Is high-intensity training the key to a younger brain? (1:16:01) Is vigorous exercise more powerful than we realized? (1:17:50) Can the benefits of vigorous exercise fit into a pill? (1:19:08) How small doses of intensity might extend your lifespan (1:23:15) Do short bursts of vigorous movement match full workouts? (1:27:26) Why your wearable might undervalue short vigorous bouts (1:30:06) Can planned micro-workouts replace traditional gym sessions? (1:35:10) Why exercise guidelines urgently need updating (1:46:35) Does light activity still offer real benefits? (1:49:04) Is vigorous exercise safe for older adults? (1:53:28) Are high-intensity workouts detrimental to female hormones? (1:58:02) Safe vigorous exercise options—even with chronic illness (1:59:05) The 80/20 rule for balancing intensity and recovery (2:01:30) Inside Brady's routine—how much vigorous exercise is optimal? (2:05:17) Can vigorous activity boost kids' brainpower (and grades)? (2:08:14) Are we significantly underestimating vigorous exercise benefits? (2:10:03) Why chasing steps isn't the answer Show notes are available by clicking here Watch this episode on YouTube

Synapsen. Ein Wissenschaftspodcast von NDR Info
(139) Long Covid: Wo stehen wir?

Synapsen. Ein Wissenschaftspodcast von NDR Info

Play Episode Listen Later Dec 5, 2025 62:35


Auch in Jahr sechs nach Beginn der Corona-Pandemie leiden Hunderttausende an Long Covid. Welche Erklärungen und Therapien gibt es mittlerweile? 1,5 Millionen Menschen in Deutschland leiden einer Schätzung der ME/CFS Foundation zufolge an schwerem Long Covid oder ME/CFS. Doch noch immer mangelt es an wirksamen Therapien - und an ausreichender Versorgung. Viele Betroffene pilgern von einer Praxis zur nächsten, die meisten müssen die Behandlungen aus eigener Tasche bezahlen. Denn das Krankheitsbild ist divers, es gibt mehr als 200 Symptome. Und es sind ganz verschiedene Mechanismen, die die Menschen so krank machen. Was weiß man heute? Wie entsteht Long Covid? Welche Wege führen zu einer besseren Versorgung? Und welche erfolgversprechenden Therapieansätze gibt es? Darüber spricht Wissenschaftsredakteurin Korinna Hennig in einer Live-Podcastfolge aus dem Haus der Wissenschaft in Braunschweig mit Experten. Mit dabei: Der Infektionsbiologe Dieter Jahn (TU Braunschweig) und die Hausärztin Susanne Fröhlich aus Isernhagen. HINTERGRUNDINFORMATIONEN: Studie zu Immunadsorption: Stein, E. et al.: Efficacy of repeated immunoadsorption in patients with post-COVID myalgic encephalomyelitis/chronic fatigue syndrome and elevated β2-adrenergic receptor autoantibodies: a prospective cohort study-The Lancet Regional Health Europe 2024. https://pubmed.ncbi.nlm.nih.gov/39759581/#:~:text=Interpretation%3A%20Immunoadsorption%20may%20improve%20symptoms,function%20in%20the%20condition%27s%20pathophysiology Studie zu hyperbarer Sauerstofftherapie: Kjellberg, A. et al.: Ten sessions of hyperbaric oxygen versus sham treatment in patients with long covid (HOT-LoCO): a randomised, placebo-controlled, double-blind, phase II trial. BMJ Open 2025. https://pubmed.ncbi.nlm.nih.gov/40228859/ Studie zu HELP-Apherese/Blutwäsche: Espana-Cueto, Sergio et al: Plasma exchange therapy for the post COVID-19 condition: a phase II, double-blind, placebo-controlled, randomized trial. Nature Communications 2025. https://pmc.ncbi.nlm.nih.gov/articles/PMC11850642/ Links zu der Doppelfolge der "Science Cops" zu Long Covid: https://www.ardaudiothek.de/episode/urn:ard:episode:f2e192241785f729/ https://www.ardaudiothek.de/episode/urn:ard:episode:cee04aafe360636e/ Link zu "Deep Science" vom Deutschlandfunk: https://www.ardaudiothek.de/sendung/deep-science/urn:ard:show:498714386e4aad63/ Hier geht's zum Podcast ARD Klima Update: https://1.ard.de/ARD_Klima_Update?cp=synapsen Hier geht's zur Synapsenseite: https://www.ndr.de/nachrichten/podcastsynapsen100.html Hier geht's zu ARD Gesund: https://www.ndr.de/ratgeber/gesundheit Habt ihr Feedback oder einen Lifehack aus der Welt der Wissenschaft? Schreibt uns gerne an synapsen@ndr.de.

Choses à Savoir SCIENCES
Pourquoi nos ancêtres sont-ils restés bloqués pendant 300 000 ans ?

Choses à Savoir SCIENCES

Play Episode Listen Later Dec 1, 2025 2:58


Une découverte majeure publiée dans Nature Communications bouleverse notre manière de raconter l'histoire de l'humanité. Sur le site kényan de Nomorotukunan, les archéologues ont mis au jour un phénomène fascinant — et déroutant. Pendant près de 300 000 ans, des générations d'hominidés y ont façonné exactement les mêmes outils en pierre, sans la moindre innovation. Pas de progrès, pas de variation notable, pas d'amélioration technique. Une immobilité totale dans un monde pourtant en pleine mutation.Cette persistance dans la répétition interroge. On a longtemps imaginé la préhistoire comme une aventure continue d'inventions brillantes menant progressivement à l'Homo sapiens moderne. Mais Nomorotukunan raconte une autre histoire : celle d'une humanité qui, pendant une immense portion de son existence, a fait du conservatisme technologique la norme plutôt que l'exception.Les outils retrouvés ne sont pas n'importe quels objets : ce sont des artefacts appartenant à la tradition Oldowayenne, l'une des plus anciennes technologies humaines, apparue il y a environ 2,6 millions d'années. Ce sont des éclats simples, produits en frappant deux pierres l'une contre l'autre, utilisés pour couper, racler ou broyer. Leur fabrication, quasi immuable, suggère une maîtrise transmise, mais jamais réinventée. Cela implique des pratiques pédagogiques, une culture matérielle stable et, surtout, une absence totale de pression à innover.Comment expliquer cette stagnation ? D'abord, ces outils étaient probablement suffisants pour répondre aux besoins du quotidien. Quand une technologie fonctionne parfaitement pour chasser, découper ou dépecer, pourquoi en changer ? Ensuite, les hominidés de cette époque vivaient dans des environnements où la stabilité culturelle importait davantage que l'expérimentation individuelle. L'innovation, loin d'être une valeur universelle, est un concept moderne.Cette découverte nous oblige aussi à revoir notre définition du « progrès ». Ce que nous percevons aujourd'hui comme une évolution naturelle — l'amélioration continue des technologies — est en réalité une anomalie récente à l'échelle de notre histoire. Pendant des centaines de milliers d'années, le véritable pilier de la survie humaine n'était pas la créativité, mais la continuité.L'immobilité de Nomorotukunan n'est donc pas un signe d'infériorité intellectuelle. Au contraire, elle révèle que ces populations maîtrisaient déjà un savoir-faire optimisé, durable et parfaitement adapté à leur mode de vie. Le progrès n'était pas une priorité : la transmission fidèle d'un geste ancestral était la clé de la survie.En fin de compte, cette découverte bouleverse notre récit : l'humanité n'a pas toujours avancé grâce à l'innovation. Pendant la majorité de son histoire, elle a avancé grâce à la tradition. Hébergé par Acast. Visitez acast.com/privacy pour plus d'informations.

Historia de Aragón
Llega un material con una estructura inédita de cinco cristales; y Unizar renueva el sello de buenas prácticas científicas HRS4R

Historia de Aragón

Play Episode Listen Later Dec 1, 2025 29:55


Un equipo internacional de científicos con participación del Instituto de Nanociencia y Materiales de Aragón INMA (CSIC/Unizar) ha logrado un avance sin precedentes (Nature Communications) en el campo de los materiales: crear un polímero capaz de organizarse por sí solo formando una estructura interna con cinco tipos distintos de cristales. Hasta ahora solo se había llegado al límite de cuatro. Alejandro J. Müller, profesor Ikerbasque en el Instituto Polymat de la UPV/EHU, y Víctor Sebastián, catedrático de Ingeniería Química e investigador del INMA, explican con detalle este avance y sus aplicaciones. Por otro lado, Ágora conversa con la vicerrectora Pilar Pina y los investigadores Rebecca Pagliari y Henrique Ferraz de Arruda sobre la renovación del sello de excelencia en Recursos Humanos en Investigación (HRS4R) obtenida por la Universidad de Zaragoza.

Heart to Heart with Anna
Connecting Hearts: The Science and Stories of Congenital Heart Innovation

Heart to Heart with Anna

Play Episode Listen Later Dec 1, 2025 43:06 Transcription Available


Send us a textA month of movement—across states, across continents, and across ideas—shapes this episode of Heart to Heart with Anna, where personal connection meets the frontiers of heart medicine. We begin with gratitude, travel, and family updates, then explore two breakthroughs shaping the future of congenital heart care: a major open-access study using whole-genome sequencing to forecast outcomes after CHD surgery, and nanotechnology that turns everyday implants into infection-resistant, tissue-regenerating tools.CHD News Article Referenced: “Genome sequencing is critical for forecasting outcomes following congenital cardiac surgery,” published in Nature Communications (open-access).

Zināmais nezināmajā
Starptautiskais klimata samits radījis būtiskus jautājumus par cilvēku spēju sadarboties

Zināmais nezināmajā

Play Episode Listen Later Nov 24, 2025 47:00


Šogad Starptautiskais klimata samits (COP) radījis fundamentālus jautājumus par cilvēku spēju sadarboties - vai COP vēl ir kāda jēga? Vai šodien starpatutiskā klimata diplomātija vēl ir aktuāla, ja galveno emisiju ražotājvalstu vadītāji nav ieradušies uz ikgadējo klimata samitu? Vai diskusijas par atjaunīgajiem resursiem vairs ir aktuālas, ja lielvaru galvenais uzdevums ir ražot ekonomisku izaugsmi, neņemot vērā klimata pārmaiņas? Raidījumā Zināmais nezināmajā diskutē Pasaules dabas fonda Latvijā valdes priekšsēdētājs Jānis Rozīti, politologs un dezinformācijas pētnieks Mārtiņš Hiršs un Latvijas Universitātes pētnieks Jānis Brizga. "Līdztekus klimata pārmaiņu mazināšanai aizvien vairāk tiek runāts par pielāgošanos klimata pārmaiņām," norāda Jānis Rozītis. Viņš norāda, ka tas arī ir saistīts dezinformāciju, turklāt dažādiem dezinformācijas līmeņiem. "Šobrīd aizvien vairāk, bet tas varbūt arī ir virzīts no jaunattīstības valstīm, kuras šobrīd saskaras ar klimata ar pārmaiņām, visgraujošākā izpratnē. Sarunas sāk virzīties [par pielāgošanos], un tas ir bīstami. Pielāgoties bez pārmaiņu mazināšanas būs ārkārtīgi sarežģīti un noteikti vēl dārgāk. Līdz ar to jāstrādā abās frontēs. Bet šobrīd sarunas virzās uz to, ka arī trīsreiz jākāpina finanšu resursi, lai veicinātu pielāgošanos un noturību.  Ja Latvijā visu laiku uzskatījām, ka esam tādā paradīzes vietā, tad ir arī dažādi apskatnieki, kuri norāda, ka Eiropā Latvija arī kļūst par teritoriju, kuru diezgan būtiski klimata pārmaiņas jau ietekmē."   Zinātnieki atklājuši, ka derīgo izrakteņu ieguve okeāna gultnē izjauktu barbības ķēdes līdzsvaru okeāna krēslas zonā un potenciāli iznīcinātu okeāna gultnes organismus.  Jau vairākas desmitgades ir zināms par dziļjūras derīgajām ieguvēm, proti, dažādu minerālu un derīgo izrakteņu ieguvi no okeāna dzīlēm. Bet šobrīd saskaņā ar Havaju Universitātes Manoā jaunu pētījumu ir rasti pirmie tiešie pierādījumi tam, ka dziļjūras ieguves rezultātā radušies atkritumi varētu iznīcināt dzīvību okeāna krēslas zonā, konkrēti Klusā okeāna Klarjonas-Klipertona teritorijā. Tas ir viens no bagātākajiem dziļjūras reģioniem, jo tajā ir daudz mangāna konkrēciju, tas satur arī kobaltu, niķeli un varu, kas ir galvenās sastāvdaļas elektrotransportlīdzekļiem un atjaunojamās enerģijas tehnoloģijām. Zinātnieku komanda noteikusi, ka ieguves atkritumu izvadīšana ietekmētu 53% zooplanktona, 60% mikronektona, kas barojas ar zooplanktonu, un šādi traucējumi varētu skart barības ķēdi, galu galā ietekmējot arī lielākus plēsējus, piemēram, zivis, jūras putnus un jūras zīdītājus. Pētījuma rezultātus, kas novembra sākumā publicēti žurnālā “Nature Communications”, komentē Latvijas Hidroekoloģijas institūta vadošā pētniece, Latvijas Universitātes Medicīnas un dzīvības zinātņu fakultātes docente Ingrīda Andersone. Sākumā skaidrojam, kādas kopumā okeānā ir zonas un kas izceļ tieši krēslas zonu.

Choses à Savoir
La musique peut-elle modifier nos souvenirs ?

Choses à Savoir

Play Episode Listen Later Nov 22, 2025 2:16


Oui, la musique peut réellement modifier nos souvenirs — pas seulement les raviver, mais aussi les transformer. C'est ce que montre une étude menée par des chercheurs de l'Institut de Technologie de Géorgie (Georgia Institute of Technology), publiée en 2023 dans la revue Nature Communications.Les neuroscientifiques y ont observé comment la musique influence la consolidation et la précision des souvenirs. L'expérience reposait sur un protocole simple : des volontaires devaient mémoriser des images pendant qu'ils écoutaient différentes séquences sonores — certaines musicales, d'autres neutres ou discordantes. Les chercheurs ont ensuite évalué, plusieurs heures plus tard, la fidélité des souvenirs associés à ces images.Résultat : la musique émotionnellement marquante modifiait la trace mnésique. Lorsqu'un morceau suscitait une émotion positive ou nostalgique, le souvenir devenait plus vivace, plus riche en détails. En revanche, une musique triste ou dissonante pouvait brouiller la mémoire d'origine, en y introduisant une coloration émotionnelle différente. Autrement dit, le souvenir se “réécrivait” partiellement, sous l'influence du ressenti musical.L'équipe dirigée par le Dr Caitlin Mullins a utilisé l'imagerie cérébrale (IRM fonctionnelle) pour comprendre le mécanisme. Elle a observé une coopération accrue entre l'amygdale, qui traite les émotions, et l'hippocampe, le centre de la mémoire épisodique. Cette synchronisation neuronale, induite par la musique, favorise à la fois la réactivation et la “mise à jour” du souvenir. Le cerveau, en quelque sorte, reconsolide la mémoire en y intégrant l'émotion du moment présent.Les chercheurs comparent ce phénomène à un processus d'édition : chaque fois que l'on se remémore un événement accompagné de musique, on le réimprime avec une nouvelle encre émotionnelle. Cela explique pourquoi une chanson peut nous replonger dans un souvenir heureux, mais aussi pourquoi, avec le temps, ce souvenir peut se teinter d'une nuance différente selon notre état émotionnel.En conclusion, selon l'étude du Georgia Institute of Technology, la musique ne se contente pas d'être une bande sonore de nos souvenirs : elle en est aussi un outil de réécriture. À chaque écoute, le cerveau réactive, colore et modifie subtilement le passé, prouvant qu'en matière de mémoire, rien n'est jamais complètement figé. Hébergé par Acast. Visitez acast.com/privacy pour plus d'informations.

MRS Bulletin Materials News Podcast
Episode 23: Interfacial effects dominate 2D water structure until angstrom-level confinement

MRS Bulletin Materials News Podcast

Play Episode Listen Later Nov 17, 2025 6:46 Transcription Available


In this podcast episode, MRS Bulletin's Laura Leay interviews Mischa Bonn, director of the Max Planck Institute for Polymer Research in Germany and Dr. Yongkang Wang, group leader affiliated with the Max Planck Institute for Polymer Research as well as Southeast University in Nanjing, China about their research on nanoconfined water. The researchers determined that interfacial rather than nanoconfinement effects govern water structure at the eight Ångstrom level. At five Ångstroms, nanoconfinement effects start to appear with the water molecules starting to lie flat, parallel to the interfaces, and the hydrogen bonding network beginning to weaken. The results may lead to a better understanding of nanofluidic devices, and have implications for desalination, water purification, and hydrogen generation.This work was published in a recent issue of Nature Communications. 

Choses à Savoir
Pourquoi l'IA pleure pour vous attendrir ?

Choses à Savoir

Play Episode Listen Later Nov 13, 2025 3:20


Le scénario est souvent celui-ci : Il pleure. Sa voix tremble. On devine les sanglots étouffés d'un jeune homme en détresse. Il dit s'appeler Lucas, il dit avoir eu un accident. Il a besoin d'aide. Et vous, à l'autre bout du fil, vous n'avez aucun doute : c'est bien la voix de votre neveu. Vous la reconnaissez. Sauf que… Lucas n'a jamais décroché son téléphone. Ce n'est pas lui. C'est une IA.Autre scénario, et qui a vraiment eu lieu celui-ci, en 2023, Jennifer DeStefano, une mère de famille américaine, reçoit un appel paniqué : sa fille de 15 ans, Briana, pleure, supplie qu'on vienne la sauver. En arrière-plan, des voix masculines hurlent qu'ils vont lui faire du mal si elle ne paie pas une rançon. Jennifer est tétanisée : la voix est celle de sa fille, les intonations, les sanglots, tout y est. Mais la police découvrira plus tard qu'il s'agissait d'une copie vocale générée par IA à partir de quelques secondes de vidéos postées sur TikTok. L'arnaque n'a duré que quelques minutes, mais elle a suffi à plonger une famille entière dans la terreur. Depuis, les experts en cybersécurité tirent la sonnette d'alarme : les IA vocales émotionnelles savent désormais imiter non seulement la voix, mais aussi la peur, la douleur, la tendresse. Bref les émotions ! En moins d'une minute d'enregistrement, un logiciel peut ainsi créer une fausse conversation chargée émotionnellement et d'une authenticité glaçante.C'est ce qu'on appelle des “arnaques émotionnelles IA” et elles se multiplient : faux appels d'urgence, fausses vidéos de proches, voire faux amoureux numériques sur des sites de rencontre, capables de vous parler des heures avant de réclamer une aide financière.Le danger, vous l'avez compris, et c'est là toute la nouveauté, c'est l'émotion. Ces IA savent exactement où frapper : dans le réflexe humain de compassion. Pourquoi ? Parce que ace à une voix qui pleure, notre cerveau perd en rationalité. Il baisse la garde. Une étude neuro-cognitives publiée en 2024 dans Nature Communications montre ainsi que lorsqu'une voix émotive (pleurs, détresse) parvient à un auditeur, la réponse cérébrale de celui-ci priorise le signal affectif plutot que la rationnalité— ce qui réduit la vigilance et favorise une décision impulsive.La solution ? La protection numérique.Toujours vérifier, toujours rappeler via un autre canal. Et s'équiper d'outils capables de repérer les signaux d'alerte : comme les antivirus et les solutions de protection contre les arnaques d'Avast, qui soutient cet épisode. La version payante d'Avast identifie et bloque les appels frauduleux, permettant aux utilisateurs de choisir entre répondre, ou ignorer ses appels.D'ailleurs faites particulièrement attention aux arnaques liées aux achats de fin d'année. Une récente étude d'Avast révèle que 22 % des consommateurs français affirment en avoir été victimes pendant les fêtes l'année dernière. A cette période, nous avons tendance à baisser la garde en ligne et les escros le savent. Les arnaques vont donc se multiplier et seront toujours plus sophistiquées.Aussi je vous invite à tester l'Antivirus Gratuit d'Avast qui offre une protection complète contre les virus, les malwares et les escroqueries en ligne sur PC, Mac, et smartphones (iOS et Android). A télécharger depuis depuis Google Play et l'App Store d'Apple ou en cliquant directement sur le lien suivant:https://www.avast.com/fr-fr/lp-free-av?full_trSrc=mmm_ava_tst_008_470_g&utm_source=codesource&utm_medium=referral&utm_campaign=mid-funnel_mmm_ava_tst_008_470_g&utm_content=mid_audio Hébergé par Acast. Visitez acast.com/privacy pour plus d'informations.

Choses à Savoir SANTE
Les femmes sont-elles génétiquement plus vulnérables à la dépression ?

Choses à Savoir SANTE

Play Episode Listen Later Nov 12, 2025 2:08


Pourquoi les femmes sont-elles plus souvent touchées par la dépression ? Depuis des décennies, les chercheurs observent une réalité constante : les femmes présentent deux fois plus de risques que les hommes de souffrir d'un épisode dépressif au cours de leur vie. Longtemps, on a attribué cette disparité à des facteurs sociaux, hormonaux ou psychologiques. Mais une vaste étude internationale vient bouleverser notre compréhension du phénomène : la différence serait aussi génétique.Publiée en octobre dans la revue Nature Communications, cette recherche a été menée par le QIMR Berghofer Medical Research Institute en Australie. Elle a mobilisé les données génétiques de plus de 1,3 million de personnes, issues de plusieurs cohortes internationales, ce qui en fait l'une des plus grandes études jamais réalisées sur la dépression. Les scientifiques ont analysé les variations du génome pour identifier les régions associées au risque de développer la maladie.Résultat : les femmes porteraient un fardeau génétique plus lourd que les hommes face à la dépression. Concrètement, cela signifie que les gènes impliqués dans les troubles de l'humeur exercent chez elles une influence plus forte. Les chercheurs ont notamment découvert plus de 90 zones génétiques liées à la dépression, dont plusieurs présentent des effets marqués dans le génome féminin.Cette différence pourrait s'expliquer par des interactions complexes entre gènes et hormones. Les œstrogènes, par exemple, modulent la production de neurotransmetteurs tels que la sérotonine et la dopamine, qui jouent un rôle central dans la régulation de l'humeur. Lorsque l'équilibre hormonal est perturbé — comme après un accouchement, à la ménopause ou pendant le cycle menstruel —, les femmes génétiquement prédisposées deviennent plus vulnérables à un épisode dépressif.Les chercheurs du QIMR insistent cependant sur un point : cette vulnérabilité n'est pas une fatalité. Si la génétique explique une part du risque, l'environnement, le stress, les traumatismes et les facteurs sociaux restent déterminants. Mais cette découverte ouvre la voie à une médecine plus personnalisée : en identifiant les signatures génétiques spécifiques aux femmes, il sera peut-être possible de développer à terme des traitements mieux ciblés, adaptés à leur profil biologique.En somme, cette étude confirme que la dépression n'est pas une faiblesse mais une maladie à composante biologique complexe — et qu'en matière de génétique, les femmes portent effectivement un poids un peu plus lourd à combattre. Hébergé par Acast. Visitez acast.com/privacy pour plus d'informations.

Choses à Savoir SCIENCES
Pourquoi les TV ultra haute définition se servent-elles à rien ?

Choses à Savoir SCIENCES

Play Episode Listen Later Nov 11, 2025 2:45


Le 27 octobre 2025, une étude publiée dans la revue Nature Communications a remis en question l'utilité réelle des télévisions ultra haute définition. Des chercheurs de l'Université de Cambridge et du laboratoire Meta Reality Labs ont voulu répondre à une question simple : notre œil humain perçoit-il vraiment la différence entre une image en 4K, 8K ou une résolution plus basse ? Leur conclusion est sans appel : au-delà d'un certain point, notre vision ne peut tout simplement plus distinguer les détails supplémentaires.Les écrans ultra HD se vantent d'afficher des millions de pixels supplémentaires – 8 millions pour la 4K, plus de 33 millions pour la 8K. En théorie, plus il y a de pixels, plus l'image semble nette. Mais en pratique, notre œil a une limite de résolution, mesurée en « pixels par degré de vision » (PPD). Cela représente combien de détails l'œil peut discerner dans un angle d'un degré. Dans leurs expériences, les chercheurs ont exposé des volontaires à des images aux contrastes et couleurs variables, et ont mesuré le point où la netteté cessait d'être perçue comme améliorée. Résultat : le seuil moyen était d'environ 90 PPD. Au-delà, les différences deviennent imperceptibles, même si l'écran affiche beaucoup plus d'informations.Prenons un exemple concret. Dans un salon typique, si vous êtes assis à 2,5 mètres d'un téléviseur de 110 centimètres de diagonale (environ 44 pouces), vous ne ferez pas la différence entre une image en 4K et en 8K. L'œil humain ne peut pas discerner autant de détails à cette distance. Pour vraiment profiter de la 8K, il faudrait soit un écran gigantesque, soit s'asseoir à moins d'un mètre – ce qui est peu réaliste pour regarder un film confortablement.Ces résultats soulignent une réalité simple : les gains de résolution vendus par les fabricants dépassent désormais les capacités biologiques de notre vision. Autrement dit, nous avons atteint un plafond perceptif. Acheter une TV 8K pour remplacer une 4K revient un peu à utiliser une loupe pour lire un panneau routier à un mètre de distance : la différence existe techniquement, mais votre œil ne la voit pas.Les chercheurs estiment qu'il serait plus utile d'améliorer d'autres aspects de l'image, comme la luminosité, le contraste, la fidélité des couleurs ou la fluidité des mouvements. Ces paramètres influencent beaucoup plus notre perception de la qualité qu'une hausse du nombre de pixels. En clair, la course à la résolution touche à sa fin : la vraie révolution de l'image ne viendra plus du nombre de points, mais de la manière dont ils sont rendus. Hébergé par Acast. Visitez acast.com/privacy pour plus d'informations.

The Human Risk Podcast
Dr Nikolay Kukushkin on Memory

The Human Risk Podcast

Play Episode Listen Later Oct 25, 2025 66:34


What if your body is learning things your mind doesn't know? What if memory wasn't just something that our brain has?Episode Summary On this episode, I'm exploring a bold idea with neuroscientist Dr Nikolay Kukushkin: memory doesn't just live in the brain. It might be a basic property of life itself. We unpack how scientists define memory (behavioural change over time) versus how the rest of us use the word, and why that distinction matters—from sea slugs to kidney cells. I ask the “muscle memory” question we all carry, and we separate the metaphor from the biology: your basal ganglia automate behaviours, but your muscle cells do literally adapt to patterned use.We go deep on “patterns.” Nikolay's work shows that even non-neural cells can detect minute-scale timing differences—preferring spaced pulses over a single crammed dose. That has huge implications for learning, exercise, nutrition, and even medicine; it suggests timing might be as important as quantity. We also talk about sleep as essential “synaptic housekeeping,” why false memories are an adaptive feature (not a failure), and what it really means to “run out of memory” in our overstimulated world.Finally, we tilt at the big questions: how consciousness might have evolved, why Plato's model of perception eerily echoes today's top-down/bottom-up neuroscience, and what AI still lacks—learning patterns in time within an embodied world. If you've ever crammed for an exam, worried about forgetting your own name, or wondered what your cells are quietly learning from your daily routines, this one will rewire how you think about memory.Guest Biography — Dr Nikolay KukushkinDr Nikolay Kukushkin is a Clinical Associate Professor at NYU. His book One Hand Clapping: Unraveling the Mystery of the Human Mind  traces how consciousness emerged from the natural world; the original Russian edition won the Enlightener (Prosvetitel) Award and the Alexander Belyaev Medal.His recent research (Nature Communications, Nov 2024) showed that non-neural human cells display the classic “spacing effect,” suggesting memory-like temporal patterning beyond the brain.AI-Generated Timestamped Summary [00:00:00] Cold open: reframing memory as cellular, not just neural. [00:01:00] Scientists' definition of memory vs everyday usage. [00:03:00] From behaviour change to cellular change; beyond “plugging a muscle into a brain.” [00:05:00] All cells have experiences; “pattern matters.” [00:06:00] Muscle memory: basal ganglia automation vs literal muscle adaptation. [00:07:00] Shared molecular machinery: “use it or lose it” in brain and muscle. [00:08:00] Nikolay's path: from molecules to minds; bottom-up neuroscience. [00:09:00] Protein quality control: molecular barcodes and cellular “conversations.” [00:11:00] Why sea slugs: short path from molecules to behaviour. [00:13:00] Hypothesis leap: if single neurons learn from pulses, could kidney cells? [00:14:00] The experiment: four 3-min pulses vs one 12-min pulse (spacing wins). [00:16:00] What's uniquely neural: synapses and specific connectivity; where salience arises. [00:19:00] Memory without awareness; non-neural systems can store patterns. [00:20:00] Applications: exercise, diet, medicine; timing as a lever. [00:23:00] The dark mirror: life as obsessive optimisation if we over-pattern. [00:24:00] Personal practice: being mindful of inputs, attention as filter. [00:26:00] Debunking “10% of the brain” and the sleep–memory link. [00:28:00] Sleep weakens synapses; deprivation leads to saturation and hallucinations. [00:30:00] The social-media “soup” analogy for saturated memory. [00:32:00] Names, identity and rehearsal; de-naming as degradation. [00:33:00] Reconsolidation: why false memories are a feature we need. [00:34:00] 9/11/Challenger studies: how memories drift with time. [00:36:00] Ebbinghaus and the spacing effect across species and systems. [00:39:00] Cramming vs spacing: initial strength and decay rates. [00:41:00] The forgetting curve and why “more” can decay slower in memory. [00:42:00] “My whole life is one big experiment on my brain.” [00:43:00] Practical “tip”: fix attention first; follow interest, not force. [00:45:00] Attention economy and selective inputs as memory hygiene. [00:48:00] From smoking to scrolling: a future of information hygiene. [00:50:00] One Hand Clapping: why it feels special to be you. [00:54:00] Plato's “two fires”: ancient echoes of top-down/bottom-up perception. [00:58:00] Intuition as hidden associations; LLMs as an analogy. [01:00:00] AI: excitement, unease, and the risk of outsourcing humanness. [01:03:00] What AI lacks: learning patterns in time without a body. [01:05:00] Close and thanks. [01:06:00] Outro and calls to action.LinksNikolay's website - https://www.nikolaykukushkin.com/His NYC profile - https://liberalstudies.nyu.edu/about/faculty-listing/nikolay-kukushkin.htmlHis book 'One Hand Clapping' - https://www.nikolaykukushkin.com/press-1'Memory Takes Time': research into how wemory is not confined to a particular location or locations in the brain - https://www.cell.com/neuron/fulltext/S0896-62731730467-1Herman Ebbinghaus - https://en.wikipedia.org/wiki/Hermann_Ebbinghaus and The Ebbinghaus Illusion: https://en.wikipedia.org/wiki/Ebbinghaus_illusion

SpaceTime with Stuart Gary | Astronomy, Space & Science News
Dust Devils and Tectonic Tales: Unraveling Mars and Earth's Deep History

SpaceTime with Stuart Gary | Astronomy, Space & Science News

Play Episode Listen Later Oct 17, 2025 23:55


In this episode of SpaceTime, we uncover the latest findings in Martian meteorology, delve into Earth's ancient tectonic activity, and prepare for humanity's return to the Moon.Raging Winds on Mars: Unveiling Martian Weather PatternsA groundbreaking study published in the journal Science Advances reveals that wind speeds on Mars can reach up to 160 km/h, significantly higher than earlier estimates. Lead author Valentin U.H. Meckel from the University of Bern discusses how these powerful winds, along with dust devils, play a crucial role in shaping Mars' climate and dust distribution. This episode explores how the observations from the European Space Agency's Mars Express and ExoMars Trace Gas Orbiter have provided unprecedented insights into Martian atmospheric dynamics, which are essential for planning future manned missions to the Red Planet.Unlocking Earth's Deep Past: New Insights into SubductionIn a surprising twist to our understanding of early Earth, a new study published in Nature Communications suggests that subduction and continental crust formation occurred much earlier than previously believed. Researchers utilized advanced geochemical analysis of ancient olivine crystals to challenge the notion of a stagnant lid tectonic regime during the Hadean eon. This episode discusses the implications of these findings on our understanding of Earth's geological history and the processes that shaped our planet's surface.NASA's Artemis II: Preparing for Lunar ExplorationNASA is set to send astronauts back to the Moon with the Artemis II mission, slated for launch in early 2026. This episode provides an overview of the mission's objectives, including a ten-day crewed flyby of the Moon, which will test the Orion spacecraft and gather crucial scientific data. As the crew prepares to explore the lunar far side, we discuss the significance of this mission for future lunar habitation and potential manned missions to Mars.www.spacetimewithstuartgary.com✍️ Episode ReferencesScience Advanceshttps://www.science.org/journal/sciadvNature Communicationshttps://www.nature.com/ncomms/Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-your-guide-to-space-astronomy--2458531/support.Raging Winds on Mars: Unveiling Martian Weather PatternsUnlocking Earth's Deep Past: New Insights into SubductionNASA's Artemis II: Preparing for Lunar Exploration(00:00) Wind speeds on Mars and their implications(12:45) New findings on early Earth's tectonic activity(21:15) NASA's Artemis II mission overview(30:00) Science report: Octopus handedness and air pollution effects on sleep apnea

Learn French with daily podcasts
Listening Practice - Simples cellules de peau

Learn French with daily podcasts

Play Episode Listen Later Oct 4, 2025 2:00


Imaginez un peu : transformer de simples cellules de peau en ovule.Imagine that: transforming simple skin cells into egg cells.Ouais.Yeah.Et qu'ils puissent être fécondés.And that they can be fertilized.C'est la prouesse que des chercheurs expliquent dans Nature Communications.This is the feat that researchers explain in Nature Communications.C'est potentiellement énorme pour l'infertilité mais ça soulève de sacrées questions.It's potentially huge for infertility but it raises some serious questions.Alors, premier point : la science derrière tout ça.So, first point: the science behind all this.L'équipe de Paula Amato de l'Oregon Health and Science University, eh bien elle a réussi à créer ces ovocytes humains fonctionnels.The team of Paula Amato from the Oregon Health and Science University, well, they succeeded in creating these functional human egg cells.Ils ont même pu être fécondés par des spermatozoïdes.They could even be fertilized by sperm.Bon, ça a donné des embryons, mais ils avaient des anomalies, alors ils ont été détruits, hein.Well, it resulted in embryos, but they had abnormalities, so they were destroyed, you know.Les idées d'application, il y en a : traiter certaines infertilités, permettre aux couples de même sexe d'avoir des enfants génétiquement liés ou pallier le manque de don de gamètes, un vrai sujet en France par exemple.There are ideas for application: treating certain infertilities, allowing same-sex couples to have genetically related children or compensating for the lack of gamete donation, a real issue in France, for example.Mais, attention, hein, Paula Amato le répète, on parle de moins d'une décennie avant d'imaginer utiliser ça en clinique.But, be careful, Paula Amato repeats it, we're talking about less than a decade before considering using this in a clinical setting.On en est vraiment qu'au tout début.We are really only at the very beginning. Hébergé par Acast. Visitez acast.com/privacy pour plus d'informations.

Morning Announcements
Thursday, October 2nd, 2025 - Shutdown blame game; SCOTUS ruled Cook stays, for now; Pentagon polygraphs; Lab made eggs

Morning Announcements

Play Episode Listen Later Oct 2, 2025 5:47


Today's Headlines: The government is officially shut down, and OMB apparently spent its last working hours ordering at least 16 federal agencies to send out a pre-written email blaming Democrats for it—an illegal little parting gift to federal workers. With the shutdown, you can forget about getting jobs or inflation data for now (except from payroll firm ADP, which says companies shed 32,000 jobs in September—so, yeah, not great). Meanwhile, the Supreme Court told Trump he can't just boot Fed Governor Lisa Cook on the spot, kicking that fight to January. At the Pentagon, Pete Hegseth is rolling out strict NDAs and even random polygraphs for thousands of staffers, including top brass, in his ongoing war against leakers. And in actual science news, researchers in Nature Communications announced they've managed to create functional human eggs from skin cells in a lab—early proof-of-concept that could eventually transform fertility treatments, though no babies are being made from them anytime soon. Resources/Articles mentioned in this episode: The Handbasket: Trump mandates all federal agencies send email blaming Dems for potential gov't shutdown  Yahoo: While the government is closed, jobs and inflation data go unreported NBC News: U.S. companies shed 32,000 jobs in September in latest sign of labor market weakness NYT: Supreme Court Allows Lisa Cook to Remain at Fed, for Now WaPo: Pentagon plans widespread random polygraphs, NDAs to stanch leaks Wired: Scientists Made Human Eggs From Skin Cells and Used Them to Form Embryos Morning Announcements is produced by Sami Sage and edited by Grace Hernandez-Johnson Learn more about your ad choices. Visit megaphone.fm/adchoices

Quirks and Quarks Complete Show from CBC Radio
Understanding our inner light, and more...

Quirks and Quarks Complete Show from CBC Radio

Play Episode Listen Later Sep 19, 2025 54:09


Dust from car tires can be bad for fish — what might it do to us?As car tires wear, they shed billions of ultrafine particles of rubber that contain a complex mix of chemicals, including one called 6PPD-Quinone that's been linked to mass die-offs of migrating salmon. Now researchers are sounding the alarm that this chemical is accumulating in humans, and we have no clear understanding of its toxicity. An international team of scientists, including Rachel Scholes from the University of British Columbia, are calling for more scrutiny of the chemicals that go into car tires, since so much ends up in our environment. Their paper was published in the journal Environmental Science & Technology Letters.Fecal Transplants seem to have lasting metabolic effectsTransplanting the gut microbiome has been held out as a hope for a range of disorders, from obesity to mental health issues. A study that followed obese adolescents four years after receiving a fecal microbiota transplant from healthy individuals has shown positive impacts on the recipients' weight and metabolic health. Dr. Wayne Cutfield, a pediatrician and professor of pediatric endocrinology at the University of Auckland in New Zealand, said they also found after all this time that the donor bacteria have remained established in the recipients' gut microbiome. The study is in the journal Nature Communications. An ant queen clones sexual slaves of another species for her daughtersIn a truly bizarre tale from the animal world, researchers have discovered a species of ant where the queen gives birth to males of two totally different species. Somewhere along their evolutionary path, these Messor ibericus queen ants in southern Europe developed an ability to clone male Messor structor ants for her daughters to mate with and to produce a hybrid working class. Jonathan Romiguier, an evolutionary biologist from the University of Montpellier in France, said these M. ibericus ants essentially domesticated ants of another species. The study was published in the journal Nature. Why other apes can't walk a mile in our shoesA feature that distinguishes humans from other primates is the ability to walk upright. The major evolutionary change in the structure of our pelvis that allows for our bipedalism has now been traced genetically and developmentally. Human pelvic blades initially form in the embryo like other primates, but then flip their growth from vertical to horizontal, to give the human pelvis its unique basin shape. This new research led by Terence Capellini, Chair of the human evolutionary biology department at Harvard University and postdoctoral student Gayani Senevirathne, was published in the journal Nature.Women glow. So do men. Understanding our 'inner light'You might have been told by an admirer that you have a unique glow. In two groundbreaking studies, researchers have demonstrated the reality of that poetic compliment. Using ultra-sensitive instruments capable of detecting individual photons, Canadian researchers have imaged a biological source of incredibly faint light, known as Ultraweak Photon Emissions (UPE), that has potential as a future non-invasive diagnostic imaging tool. Daniel Oblak, an associate professor of physics and astronomy at the University of Calgary, oversaw a study where they unequivocally demonstrated that living things, like mice, give off an extremely faint glow that dims when they die. His study was published in The Journal of Physical Chemistry Letters. In a separate study, Nirosha Murugan, — an assistant professor of tissue biophysics at Wilfred Laurier University — discovered that these UPEs can also detect different mental states in the brain. That study was published in the journal iScience.

Dr. Joseph Mercola - Take Control of Your Health
Science Reveals Why Exercise Takes Longer to Pay Off as You Get Older

Dr. Joseph Mercola - Take Control of Your Health

Play Episode Listen Later Sep 12, 2025 7:43


Sarcopenia, the age-related loss of muscle mass and strength, begins subtly in midlife and accelerates with age, increasing your risk of frailty, falls, and fractures As your body ages, muscles become less responsive to training, and physical gains come more slowly, even when effort and consistency remain the same A 2025 study published in Nature Communications found that older muscles fail to activate key growth pathways and repair signals after exercise, explaining the reduced adaptation Despite slower gains, exercise remains essential not just for physical strength but also for brain function, heart health, immune regulation, and metabolic resilience across the aging process Longevity benefits peak at around 40 to 60 minutes of strength training per week; exceeding this reverses the gains and increases the risk of overtraining