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Naked Scientists, In Short Special Editions Podcast — Life Sciences
Naked Scientists, In Short Special Editions Podcast

Probing the weird, wacky and spectacular, the Naked Scientists Special Editions are special one-off scientific reports, investigations and interviews on cutting-edge topics by the Naked Scientists team.

Copyright: © The Naked Scientists

Latest Episodes:

Wildfire smoke detected in stratosphere Mar 31, 2021

Show notes

Fires of any scale tend to produce a certain amount of smoke - a variety of different particles including small bits of unburnt fuel, which eventually disperse into the atmosphere. And looking at data from satellites out in space, scientists in Israel have shown that smoke from the late 2019 / early 2020 Australian wildfires actually travelled up beyond the lower atmosphere (known as the troposphere) and into the stratosphere - that's above where clouds gather and planes tend to fly. Up here, these smoke particles stick around for longer, where they can absorb or scatter incoming energy from... Like this podcast? Please help us by supporting the Naked Scientists

Cone snails seduce prey with pheromones Mar 17, 2021

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Cone snails are a group of highly venomous marine snails. Their shells are beautiful, but they pack a powerful neurotoxic punch: some members of this family are so poisonous that they can easily kill a person. But one species of cone snail, called Conus imperialis, produces a very different reaction in the worms they hunt. This snail has a venom cocktail that includes pheromones: it uses similar chemicals to the ones the worms give off when mating. Why make a worm aphrodisiac? Phil Sansom spoke to Joshua Torres from the University of Copenhagen about these strange creatures... Like this podcast? Please help us by supporting the Naked Scientists

Modelling concussion with eggs Mar 04, 2021

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In recent years we've realised quite how bad a knock on the head can be for us, because the brain bobs about suspended in fluid inside our skulls. And if you move, or stop, the head suddenly, the brain cannons into the inside of the skull and can be injured. It's especially important in sports, but it's hard to study - and to develop effective safety equipment - for obvious reasons. But scientists have now discovered that something you commonly find in fridge door behaves in an uncannily similar way to your brain. Adam Murphy found out more... Like this podcast? Please help us by supporting the Naked Scientists

Diabetes drug trialled to treat obesity Mar 03, 2021

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In the UK, about 1 in 4 adults are affected by obesity, which is linked to diabetes, heart disease and some cancers. But recently a new study has documented the effect of giving a drug called semaglutide to 2000 people over a 1 year period. The drug mimics a gut hormone called GLP-1 to boost insulin levels and it's already used to treat diabetes. The study subjects lost an average of 15kg on the drug, suggesting that it might be an effective way to support weight loss. Katie Haylor asked Cambridge University geneticist and obesity specialist Giles Yeo to take her through the results of the... Like this podcast? Please help us by supporting the Naked Scientists

Bile ducts grown in lab can repair livers Mar 02, 2021

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A new way to repair diseased livers has been unveiled by researchers at the University of Cambridge. They've found a way to grow the cells that line the branching system of pathways inside the liver - the bile ducts. It's a big step forward. Chris Smith heard from Kourosh Saeb-Parsy, who is part of the team behind the work... Like this podcast? Please help us by supporting the Naked Scientists

COVID: seeking herd immunity by vaccination Mar 01, 2021

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One thing we're all hoping for is that the new coronavirus vaccines will give us 'herd immunity' - this would mean that so many people are immune to the virus that it would start to die away as it can't find new hosts to infect. But how does herd immunity work in practice, and are the vaccines we have likely to put us in this fortunate position? Eva Higginbotham spoke with Peter English, a consultant in communicable disease control, to find out... Like this podcast? Please help us by supporting the Naked Scientists

Covid-19 latest and the flu surge in waiting Feb 28, 2021

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Virologist Dr Chris Smith catches up with RNZ's Kim Hill with an update on the Covid-19 latest news including encouraging data on the performance of the vaccines, but discouraging news on the stances of some prominent European leaders towards AstraZeneca's vaccine. Also, new Covid variants in America, and why scientists suspect flu might be waiting in the wings to make a dramatic comeback... Like this podcast? Please help us by supporting the Naked Scientists

Treating osteoarthritis with antidepressants Feb 23, 2021

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Osteoarthritis is a painful condition caused by wear and tear to the slippery cartilage that normally coats and lubricates the bone surfaces in our joints. This doesn't repair itself very well, so, when it wears out, joint replacement is usually the only option. But recently, scientists out of Penn State University in the US have shown that the antidepressant drug paroxetine has an interesting side-effect: it encourages the cells that make and build cartilage to grow. So, perhaps, in the future we'll be able to pop a pill, rather than have a hip replacement. Fadia Kamal told Katie Haylor what... Like this podcast? Please help us by supporting the Naked Scientists

An ancient freshwater Arctic ocean Feb 22, 2021

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About 70% of our planet is covered in water, and the vast majority of that water is in the salty oceans. But in a paper published recently, scientists from Germany propose that the Arctic Ocean was - at a relatively recent few points in Earth's history - actually entirely freshwater. Rivers and meltwater flushed out the salt, and lower sea levels worldwide at the time meant it couldn't come back, at least for a while. Getting to grips with how and exactly when this was happening is critical to our understanding of how climate change affects the Arctic, as Katie Haylor heard from Walter... Like this podcast? Please help us by supporting the Naked Scientists

Traffic noise makes crickets pick bad mates Feb 16, 2021

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Many of us may love driving, but nature certainly doesn't love us doing it! Alongside the pollution, there's the noise of traffic, which isn't just a nuisance for humans. Lots of research shows man-made noise affects nearby animals, and now another study shows that insects are also being impacted: female crickets get so confused by road noise that they struggle to pick the best potential suitor from the pack. Zoologist Adam Bent explained the situation to Phil Sansom... Like this podcast? Please help us by supporting the Naked Scientists

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