The Conversation

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Canal • 20 programas

Física

Física

Cada semana
Comentarios de noticias

Comentarios de noticias

Cada semana
Naturaleza

Naturaleza

Cada semana
Noticias

Noticias

28/04/2020
Ciencias

Ciencias

31/07/2019
Ciencias

Ciencias

06/06/2023
Noticias

Noticias

18/08/2022

19/09/2024

A lonely ancient plant needs a female partner – researchers are using drones and AI to find it

A rare and ancient plant has been waiting for its long-lost mate. The only known specimens of Encephalartos woodii, a rare and ancient species of cycad, are male, all clones of the same plant found over 100 years ago deep in a South African forest. Now a team of researchers is on a mission to find an elusive female version of the plant with the help of drones and artificial intelligence. In this episode we speak to Laura Cinti, a research fellow at the University of Southampton in the UK, about her determined quest to save the species – called the world's "loneliest" plant. The story in this episode came out of our series Plant Curious, exploring scientific studies that challenge the way you view plantlife. The episode was written and produced by Mend Mariwany and Gemma Ware, with assistance from Katie Flood and sound design by Michelle Macklem. Our theme music is by Neeta Sarl. Full credits for this episode are available. Sign up here for a free daily newsletter from The Conversation. A transcript is also available. If you like the show, please consider donating to The Conversation, which is an independent, not-for-profit news organisation. And please do rate and review the show wherever you listen. Further reading:Searching for a female partner for the world’s ‘loneliest’ plantThe silent conversations of plantsClimate mapping can point to danger spots where new pest threatens Africa’s cycads Thirsty tomatoes emit ultrasonic sounds – and other plants may be listening

19/09/2024

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20 min
12/09/2024

Why mpox in Africa was ignored for too long and children are dying as a result

An epidemic of mpox in the eastern Democratic Republic of Congo, is spreading quickly, particularly among young children. Mpox is a serious, at times fatal, virus – and the world knows how to prevent it. There are effective vaccines stockpiled in many western countries. Yet, after an earlier global epidemic in 2022 was largely brought under control in Europe and North America, the ongoing battle to protect people in Africa from mpox was ignored. In this episode we ask a virologist and a paediatrician why Africa's mpox crisis was so neglected and what needs to happen now to save lives, particularly children's. Featuring Nadia Adjoa Sam-Agudu, professor of paediatric infectious diseases at the University of Minnesota in the US and Wolfgang Preiser, head of the division of medical virology at Stellenbosch University in South Africa, with an introduction from Nadine Dreyer, health and medicine editor at The Conversation Africa. This episode was written and produced by Mend Mariwany and Gemma Ware, with assistance from Katie Flood and sound design by Michelle Macklem. Our theme music is by Neeta Sarl. Full credits for this episode are available. Sign up here for a free daily newsletter from The Conversation. If you like the show, please consider donating to The Conversation, which is an independent, not-for-profit news organisation. And please do rate and review the show wherever you listen. Further reading:Mpox in the DRC: children are at high risk – health expert explains whyMpox outbreak in Africa was neglected – it could now turn into the next global pandemicMpox cases are soaring in Africa – what must be done to prevent a global pandemicAfrica desperately needs mpox vaccines. But donations from rich countries won’t fix this or the next health emergency

12/09/2024

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30 min
26/09/2024

Himpathy: the psychology of why some people side with perpetrators of sexual misconduct

What makes some people more likely to feel disproportionate sympathy to people facing accusations of sexual misconduct – a concept known as himpathy? In this episode, we speak to a human behaviour expert whose research seeks to understand the psychological factors behind it. Featuring Samantha Dodson, assistant professor of organizational behaviour and human resources at the University of Calgary in Canada, and an introduction form Eleni Vlahiotis, business and economy editor at The Conversation in Canada. This episode was written and produced by Katie Flood with assistance from Mend Mariwany and sound design by Michelle Macklem. Gemma Ware is the executive producer. Our theme music is by Neeta Sarl. Full credits for this episode are available. Sign up here for a free daily newsletter from The Conversation. If you like the show, please consider donating to The Conversation, which is an independent, not-for-profit news organisation. And please do rate and review the show wherever you listen. Further reading:How ‘himpathy’ helps shield perpetrators of sexual misconduct from repercussionsTrump found liable for assaulting, defaming E. Jean Carroll – after a trial where he relied on a discredited myth about how women should react to rapeKavanaugh is a reminder: Accused sexual harassers get promoted anyway

26/09/2024

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24 min
17/10/2024

MicroRNA: Victor Ambros on the discovery that won him the Nobel prize

Victor Ambros and Gary Ruvkun were awarded the 2024 Nobel prize in physiology or medicine for their discovery of microRNA, tiny biological molecules that tell the cells in our body what kind of cell to be by turning on and off certain genes. In this episode, we speak to Ambros, who is professor of natural sciences at UMass Chan Medical School in the US, about the discovery that led to his Nobel prize and find out what he’s researching now. And we hear from Justin Stebbing, professor of biomedical sciences at Anglia Ruskin University in the UK, about how a deeper understanding of microRNA is opening up new avenues for potential treatment of diseases such as cancer. This episode was produced by Gemma Ware, Katie Flood and Mend Mariwany. Sound design was by Michelle Macklem and our theme music is by Neeta Sarl. Full credits for this episode are available. Sign up here for a free daily newsletter from The Conversation. If you like the show, please consider donating to The Conversation, which is an independent, not-for-profit news organisation. And please do rate and review the show wherever you listen. Further reading:MicroRNA − a new Nobel laureate describes the scientific process of discovering these tiny molecules that turn genes on and offMicroRNA is the Nobel-winning master regulator of the genome – researchers are learning to treat disease by harnessing how it controls genesNobel prize in medicine awarded for discovery of microRNAs, the molecules that control our genesFull coverage of the 2024 Nobel prizes on The Conversation

17/10/2024

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25 min
05/09/2024

The emotional toll of dating apps and why they're no longer about finding love

Dating apps are having a rocky moment, with some of the biggest struggling to attract paying users. In this episode, we hear from researchers exploring how dating apps have changed modern dating and the expectations around it. And we find out why some dating app users aren’t actually there looking for love, but keep on swiping anyway. Featuring Treena Orchard, associate professor at the School of Health Studies at Western University in Canada, and Carolina Bandinelli associate professor in media and creative industries at the University of Warwick in the UK. This episode was written and produced by Mend Mariwany, with assistance from Katie Flood and sound design by Michelle Macklem. Our theme music is by Neeta Sarl. Gemma Ware is the executive producer. Full credits for this episode are available. Sign up here for a free daily newsletter from The Conversation. If you like the show, please consider donating to The Conversation, which is an independent, not-for-profit news organisation. And please do rate and review the show wherever you listen. If you listen on PocketCasts, they've just launched the ability to rate shows here. Further reading:Swipe right or left? How dating apps are impacting modern masculinityDating apps are accused of being ‘addictive’. What makes us keep swiping?The problems with dating apps and how they could be fixed – two relationship experts discussDating apps: Lack of regulation, oversight and competition affects quality, and millions stand to lose

05/09/2024

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29 min
29/03/2023

Cool beasts

Fear & Wonder is a new climate podcast, brought to you by The Conversation. It takes you inside the United Nations’ era-defining climate report via the hearts and minds of the scientists who wrote it. The show is sponsored by the Climate Council, an independent, evidence-based organisation working on climate science, impacts and solutions. The show is hosted by Joelle Gergis, a climate scientist and lead author for the UN’s Intergovernmental Panel on Climate Change (IPCC), and her friend Michael Green, an award-winning journalist. In the last episode, we heard about some older, natural and human records that show us how the climate is changing. In this episode, Michael and Joelle continue that trail to the present day, investigating some of the new ways that scientists are observing the changing climate, particularly sea level rise. Icelandic scientist Guðfinna ‘Tolly’ Aðalgeirsdóttir explains how she got into glaciology, what the advances are in the measurement of glacier and ice sheets, and takes listeners on a field trip to measure the summer snow melt on a glacier. We then hear from oceanographer Matt Palmer, who talks about advances in the measurement of ocean depth. If you liked this episode, you might also like to subscribe to The Conversation's new Science Wrap newsletter: https://bit.ly/406nQgk. And if you really like the show, please consider donating to The Conversation – we're a non-profit newsroom who rely on the support of our readers to fund our expert-led journalism: https://bit.ly/42ABoCi. If you'd like to support the Climate Council and receive your free copy of Joelle's book Humanity's Moment, click here: https://bit.ly/40sQ4BP. Hosted on Acast. See acast.com/privacy for more information.

29/03/2023

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44 min
10/10/2024

What Israel and its neighbours want now

The Middle East is perilously close to all-out war. In the year since the October 7 Hamas-led attacks on Israel, millions of people have been displaced from their homes in Gaza, Israel, the West Bank and now Lebanon, and tens of thousands killed. In this episode, we speak to two experts from the Middle East, Mireille Rebeiz and Amnon Aran, to get a sense of the strategic calculations being made by both Israel and its neighbours at this frightening moment for the region. Rebeiz is chair of Middle East Studies at Dickinson College in the US and Aran is professor of International Relations, City St George's, University of London in the UK. This episode was produced by Mend Mariwany and mixed by Michelle Macklem. Full credits for this episode are available. If you like the show, please consider donating to The Conversation, which is an independent, not-for-profit news organisation. And please do rate and review the show wherever you listen. Further reading and listening:Does Hezbollah represent Lebanon? And what impact will the death of longtime leader Hassan Nasrallah have? October 7 marks 12 months of escalation into the ‘forever war’ now engulfing the Middle EastA year of escalating conflict in the Middle East has ushered in a new era of regional displacement Inside the Oslo accords: a new podcast series marks 30 years since Israel-Palestine secret peace negotiations

10/10/2024

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36 min
30/08/2024

Geoengineering part 2: the case against reflecting sunlight to cool the Earth

In the second of two episodes on geoengineering, we hear the case against trying to reflect sunlight to cool the Earth. Solar radiation modification has attracted attention and investment in recent years as a way to potential reverse the effects of climate change, but it remains a controversial idea. We hear from researchers pushing a non-use agreement for solar geoengineering who explain why they believe these types of technologies are a dangerous distraction from what needs to be done to reduce fossil fuel emissions. Featuring Chukwumerije Okereke, professor in global governance and public policy at the University of Bristol, and Co-Director at the Center for Climate Change and Development at Alex Ekwueme Federal University in Nigeria and Aarti Gupta, professor of global environmental governance at Wageningen University in the Netherlands. And responses from Shaun Fitzgerald at the Centre for Climate Change at the University of Cambridge in the UK Listen to the first episode to hear scientists who argue modifying the climate can help buy the world time. This episode was written and produced by Mend Mariwany and Gemma Ware, with assistance from Katie Flood and sound design by Michelle Macklem. Our theme music is by Neeta Sarl. Full credits for this episode are available. Sign up here for a free daily newsletter from The Conversation. Further reading: Not such a bright idea: cooling the Earth by reflecting sunlight back to space is a dangerous distractionSolar geoengineering might work, but local temperatures could keep rising for yearsBlocking out the sun won’t fix climate change – but it could buy us timeThe overshoot myth: you can’t keep burning fossil fuels and expect scientists of the future to get us back to 1.5°CAfrica has vast gas reserves – here’s how to stop them adding to climate change

30/08/2024

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32 min
31/03/2020

Amazon, une marketplace pour assécher la concurrence

En offrant la possibilité à des vendeurs indépendants de faire connaître leurs produits, la plate-forme sélectionne les best sellers qu’il distribuera lui-même à l’avenir… en cassant les prix. Hébergé par Acast. Visitez acast.com/privacy pour plus d'informations.

31/03/2020

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4 min
08/10/2018

Potensi energi angin di Indonesia begitu besar, mengapa kincirnya harus kecil

ENERGY.GOV/WIKIMEDIA, CC BY-SA Angin punya posisi penting bagi sejarah panjang peradaban manusia. Sekitar 7000 tahun lalu, angin tercatat telah memutar baling-baling kapal di sepanjang Sungai Nil di Mesir. Di Cina, 200 tahun sebelum Masehi, hembusan angin telah memutar kincir sederhana dan membantu petani memompa air. Sejak abad ke-20, angin telah menggerakan turbin dan menghasilkan listrik untuk rumah di Eropa dan Amerika Utara. Selain lebih murah, tenaga angin juga terbukti jauh lebih ramah terhadap lingkungan. Tapi mengapa Indonesia sepertinya sulit melakukan hal yang sama? Apa kita kekurangan angin? Adi Surjosatyo, Guru Besar Departemen Teknik Mesin Universitas Indonesia, mengatakan potensi Indonesia sangat besar. Tapi, menurut dia, selama ini kita telah keliru dalam memandang tenaga angin. Di Eropa, daerah kontinental, turbin angin dibuat besar karena angin besar. Tapi di daerah Indonesia, turbin angin harus kecil karena kondisi udara dan kelembapan air laut membuat angin di Indonesia kecil. Rata-rata kecepatan angin di Indonesia dua kali lebih lemah dari angin di Eropa. Hanya sekitar 2,5 sampai 3 meter per detik. Kecepatan angin rendah, kincirnya pun harus kecil. Itulah yang dilakukan oleh Adi di Kampung Bungin, Muara Gembong, Bekasi. Dia bikin energi terbarukan dari angin untuk mengaliri listrik kampung nelayan tersebut. Satu kincir angin setinggi 11 meter hanya butuh Rp 50 juta. Setelah memasang beberapa kincir di pinggir pantai, biarkan angin yang bekerja sepanjang waktu. Edisi ke-29 Sains Sekitar Kita ini disiapkan oleh Ikhsan Raharjo dan narator Malika. Selamat mendengarkan!

08/10/2018

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6 min

Listen to experts explain the world around us and tell the stories behind brand new research. Podcasts from The Conversation, an independent source of news and views, sourced from the academic and research community. Shows in English, French and Bahasa Indonesia. Free to listen.