Episódios

  • Behind the scenes of Nature News and Views in 2024
    Dec 20 2024
    02:54 The death star moon and a win for the little guys

    The shifting orbit of one of Saturn’s moons indicates that the satellite has a subsurface ocean, contradicting theories that its interior is entirely solid. The finding calls for a fresh take on what constitutes an ocean moon.

    Nature Podcast: 14 February 2024

    News and Views: Mimas’s surprise ocean prompts an update of the rule book for moons


    07:05 Could red mud make green steel?

    Millions of tonnes of ‘red mud’, a hazardous waste of aluminium production, are generated annually. A potentially sustainable process for treating this mud shows that it could become a source of iron for making steel.

    Nature Podcast: 24 Jan 2024

    News and Views: Iron extracted from hazardous waste of aluminium production


    12:09 A hierarchy of failure

    A design principle for buildings incorporates components that can control the propagation of failure by isolating parts of the structure as they fail — offering a way to prevent a partial collapse snowballing into complete destruction.

    Nature podcast: 15 May 2024

    Nature video: Controlled failure: The building designed to limit catastrophe

    News and Views: Strategic links save buildings from total collapse


    17:57 Programable enzyme for genpme editing

    RNA-guided recombinase enzymes have been discovered that herald a new chapter for genome editing — enabling the insertion, inversion or deletion of long DNA sequences at user-specified genome positions.

    News and Views: Programmable RNA-guided enzymes for next-generation genome editing


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    25 minutos
  • The Nature Podcast festive spectacular 2024
    Dec 18 2024
    01:11 “Ozempic you’re able”

    In the first of our annual festive songs celebrating the science of the past year, we pay homage to Ozempic, or Semaglutide, that's able to tackle obesity, diabetes and potentially a whole lot more.


    05:20 A very scientific quiz

    We gather an all-star cast and see how well they can remember some of the big science stories from 2024 in our annual festive quiz.


    21:31 “CAR T Cells”

    In the second of our festive songs, we look at CAR-T cells. These engineered immune cells have shown great promise at tackling cancer, but these treatments are not without their drawbacks.


    25:43 Nature’s 10

    Every year, Nature’s 10 highlights some of the people who have helped shape science over the past 12 months. We hear about a few of the people who made the 2024 list, including an economist who now needs to run a country, a Russian science-sleuth, a researcher who’s been sounding the alarm on Mpox, and a PhD student who won a salary bump for researchers in Canada.


    News Feature: Nature’s 10


    Subscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.


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    37 minutos
  • Should offensive species names be changed? The organisms that honour dictators, racists and criminals
    Dec 16 2024

    Categorizing things is central to science. And there are dozens of systems scientists have created to name everything from the trenches on the sea bed to the stars in the sky.


    But names have consequences — unintended or otherwise. In our new series What’s in a name we’ll explore naming in science and how names impact the world — whether that’s how the names of storms impact public safety, how the names of diseases impact patient care, or even how the names of scientific concepts can drive the direction of research itself.

    In this first episode we’re looking at species names. The modern system of species naming began in the 1700s and has played a vital role in standardizing academic communication, ensuring that scientists are on the same page when they talk about an organism. However, this system is not without its issues. For example, there has been much debate around whether species with names considered offensive — such as those named after historical racists — should be changed, and what rule changes need to be made to allow this to happen.

    We speak to researchers about the history of this naming system, how it’s applied and how it might evolve in the face of growing pressures.


    Sources

    For a full list of sources, please visit https://www.nature.com/articles/d41586-024-04200-9


    Music credits

    Premiumaudio/Pond5

    Alon Marcus/Pond5

    Groove Committee/Pond5

    Opcono/Pond5

    Erik Mcnerny/Pond5

    Earless Pierre/Pond5

    Richard Smithson/Triple Scoop Music/Getty Images

    ​​​​​​​Douglas Romayne/Triple Scoop Music/Getty Images


    Sound effects via Pond5


    Thick-billed Longspur/​​​​​​​Andrew Spencer via ​​​​​​​CC BY-NC-ND 2.5



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    53 minutos
  • Targeted mRNA therapy tackles deadly pregnancy condition in mice
    Dec 11 2024
    00:45 A potential treatment for pre-eclampsia

    Researchers have shown in mice experiments that an mRNA-based therapy can reverse the underlying causes of pre-eclampsia, a deadly complication of pregnancy for which treatment options are limited. Inspired by the success of mRNA vaccines, the team behind the work designed a method to deliver the genomic instructions for a blood-vessel growth factor directly into mouse placentas. This stimulated the production of extra blood vessels reducing the very high-blood pressure associated with the condition. Pre-eclampsia causes 15% of maternal deaths and 25% of foetal and newborn deaths worldwide and although the work is early and human trials will be required, the team hope that this work demonstrates the potential of using this approach to treat pre-eclampsia.


    Research Article: Swingle et al.


    11:00 Research Highlights

    Stacks of, mass-produced bowls suggest that people founded, but then abandoned an ancient Mesopotamian civilization, and analysis of Venus’s gases suggests that the planet was always dry.


    Research Highlight: Ancient stacks of dishes tell tale of society’s dissolution

    Research Highlight: Has Venus ever had an ocean? Its volcanoes hint at an answer


    13:29 Programmable cellular switches

    A team of scientists have created cellular switches on the surface of cells, allowing them to control their behaviour. Creating these switches has been a long-term goal for synthetic biologists — especially a group of proteins called G-protein-coupled receptors that already control many cellular processes. However, engineering these proteins has been challenging, as modifications can ruin their function. Instead, the team added another molecular component that blocked the receptors activity, but could be removed in response to specific signals. This allowed the researchers to activate these receptors on command, potentially opening up a myriad of new ways to control cell behaviour, such as controlling when neurons fire.

    Research Article: Kalogriopoulos et al.


    19:35 Google reaches a milestone in quantum computing

    A team at Google has shown it is possible to create a quantum computer that becomes more accurate as it scales up, a goal researchers have been trying to achieve for decades. Quantum computing could potentially open up applications beyond the capabilities of classical computers, but these systems are error-prone, making it difficult to scale them up without introducing errors into calculations. The team showed that by increasing the quality of all the components in a quantum computer they could create a system with fewer errors, and that this trend of improvement continued as the system became larger. This breakthrough could mean that quantum computers are getting very close to realising the useful applications that their proponents have long promised.


    Nature: ‘A truly remarkable breakthrough’: Google’s new quantum chip achieves accuracy milestone


    Subscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.


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    29 minutos
  • Will humans ever speak wolf? A scientist unravels the complexities of animal chatter
    Dec 9 2024

    Zoologist Arik Kershenbaum has spent his career studying animals and how they communicate in the wild. In his book Why Animals Talk: The New Science of Animal Communication, Arik takes a deep dive into the various forms of communication, from wolf howls to gibbon songs, to look at how different species get their points across, why they do it the way they do, and what insights they provide into our own use of language.


    Why Animals Talk: The New Science of Animal Communication Arik Kershenbaum Penguin (2024)


    Music supplied by SPD/Triple Scoop Music/Getty Images

    Wolf howl via NPS & MSU Acoustic Atlas/Jennifer Jerrett

    Slowed down dolphin whistle via Arik Kershenbaum

    Hyrax song via Arik Kershenbaum

    Pileated gibbon song via Rushenb CC BY-SA 4.0


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    28 minutos
  • Why breast cancer treatments might work best just after your period
    Dec 4 2024
    00:48 Chemotherapy efficacy varies with the menstrual cycle

    Breast cancer cells are more susceptible to chemotherapy at certain points in the menstrual cycle, new data in Nature suggests. Researchers studied the equivalent hormonal cycle in mice and found that during the oestrous phase, where progesterone levels are low, tumours are more susceptible to chemotherapy. The same effect was shown in humans in a small retrospective study. The team caution that a larger clinical trial would need to be conducted, but hope that this work could open up an, easy to implement, way to boost the effect of chemotherapy.


    Research Article: Bornes et al.

    News and Views: What is the best time of the month to treat breast cancer?


    09:22 Research Highlights

    How coffee changes your gut microbiota, and the first amber deposits found in Antarctica hint at an ancient rainforest.


    Research Highlight: Do you drink coffee? Ask your gut

    Research Highlight: Antarctica’s first known amber whispers of a vanished rainforest


    11:47 Is human-level artificial intelligence close?

    The latest AI system released by OpenAI, the makers of ChatGPT, is better able to break down problems into smaller chunks, making it closer to a human way of solving problems than other systems. This has reignited discussions about the likelihood of AIs achieving human-level intelligence. Although previously the realm of science fiction, researchers are now taking the idea of ‘artificial general intelligence’, or AGI, more seriously. Although this technology has the potential to help tackle humanity's biggest challenges, there are concerns about the safety of such technology if it were to become autonomous.


    News Feature: How close is AI to human-level intelligence?


    21:43 Briefing Chat

    How making a bank of centenarians’ stem cells could help unlock the secrets of healthy ageing, and what some 1.5 million year old footprints reveal about how ancient hominin species may have interacted.


    Nature: What’s the secret to living to 100? Centenarian stem cells could offer clues

    Nature: These two ancient human relatives crossed paths 1.5 million years ago


    Subscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.


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    30 minutos
  • Audio long read: AI has dreamt up a blizzard of new proteins. Do any of them actually work?
    Nov 29 2024

    AI tools that help researchers design new proteins have resulted in a boom in designer molecules. However, these proteins are being churned out faster than they can be made and tested in labs.


    To overcome this, multiple protein-design competitions have popped up, with the aim of sifting out the functional from the fantastical. But while contests have helped drive key scientific advances in the past, it's unclear how to identify which problems to tackle and how best to select winners objectively.

    This is an audio version of our Feature: AI has dreamt up a blizzard of new proteins. Do any of them actually work?


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    13 minutos
  • Fossilised faeces helps explain dinosaurs' rise to dominance
    Nov 27 2024
    00:50 Fossilised faeces give news insights into dinosaurs’ diets and rise

    A huge collection of fossilised digestive contents has provided clues as to how dinosaurs grew to become the dominant animals on the planet. Why these animals rose to dominance has been unclear, with one theory proposing that a chance event wiped out other species, whereas another suggests that dinosaurs had adaptations that better allowed them to thrive. By analysing over 500 vomit and faeces fossils, researchers have better identified what dinosaurs ate, and their interactions with other animals. The new work suggests both of these theories are correct, with dinosaurs benefiting from one or the other at different points in time. The researchers believe this work demonstrates how useful fossilised food contents are for understanding these ancient creatures.


    Research Article: Qvarnström et al.

    News and Views: Wastes of time — faeces and vomit track how dinosaurs rose to prominence

    News: Fossilized poo and vomit shows how dinosaurs rose to rule Earth


    10:05 Research Highlights

    Bacteria found on an asteroid actually came from Earth, and why play helps chimps to cooperate.


    Research Highlight: Bacteria found on a space rock turn out to be Earth-grown

    Research Highlight: Chimps tickle and wrestle in play to pave the way for teamwork


    12:46 A commensal fungus found in mouse guts

    By testing mice across the United States, researchers have identified a fungus that is well adapted to living in the gastrointestinal tracts of mice, an important step in modelling the role these microorganisms play in the body. Fungi are known to be a constituent of the gut microbiome, but very little is known about what they do. Now, a team has identified that the fungus Kazachstania pintolopesii is likely a long-term resident of mice guts, which they hope will allow them to study how these microbes interact with the immune system, and the role they play in host defence and allergies.


    Research Article: Liao et al.


    21:57 The key takeaways from COP29

    The United Nations annual climate change conference, COP29, finished last week. Largely the discussions revolved around climate finance — the idea that wealthier countries who have benefitted most from past carbon emissions should pay to help poorer, vulnerable countries adapt to the effects of climate change. Although a last minute agreement was hammered out at the conference, not everyone was happy with the text and promised actions. We discuss this and the other key outcomes of COP29.


    Nature: Is the COP29 climate deal a historic breakthrough or letdown? Researchers react


    Subscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.


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    32 minutos