Science and environment

Expert feature: Mushrooms

This week's expert is all about fungi! Dr Mahajabeen Padmamsee from Manaaki Whenua Landcare Research joins Anna to talk about all things mushrooms. From foraging to the role they play in the ecosystem Dr Padmasee is covering all aspects of mushrooms and fungi, particularly in Aotearoa.

Expert feature: Mushrooms
0:00 / 35:00
Science and environment

Vinod Balachandran: mRNA vaccine to treat pancreatic cancer

New treatments for pancreatic cancer are urgently needed. One of the deadliest forms of the disease, even with surgery, chemotherapy and radiation, just 12% of patients are alive five years after diagnosis. Yet, results from a small study published recently suggest that bespoke messenger RNA (mRNA) vaccines that prime a patient's immune system to fight their cancer might be an effective future option. Half the patients showed a strong immune response to vaccination, and their tumours haven't reappeared after a median follow-up period of 18 months. Dr Vinod Balachandran, a surgical oncologist based at the Memorial Sloan Kettering Cancer Centre in New York heads the lab that ran the study.

Vinod Balachandran: mRNA vaccine to treat pancreatic cancer
0:00 / 21:16
Our Changing World

Digital twins and beating hearts

How do you throw a good birthday party? Have a nice big venue. Invite everyone. Fill it with music, lights, balloons, holographic displays of the respiratory system, computers you can control using your mind, interactive surgery games, giant inflatable colons. Okay, so maybe the Auckland Bioengineering Institute’s 20th birthday party is a little bit different to the usual. “The ABI turned 20 at the start of Covid. We wanted to celebrate – of course we couldn’t, so now we are putting on this event and inviting the public in,” says Professor Merryn Tawhai, deputy director of the Auckland Bioengineering Institute (ABI). Merryn explains that, although celebrations were pushed back a few years, they wanted to mark their two decades of research with style. So, they filled The Cloud on Auckland’s waterfront with displays, games and activities based on the work they do from 9 -14 May and opened it up to everyone. The ‘Bioengineering the future’ event was a celebration of what the institute has been working on, and what it is working towards. Their research is wide ranging – from fundamental research into how the body works, to developing instruments to improve diagnosis and treatment of disease, to biomimetics and biorobotics. One idea that they’ve been working on for some time is the concept of a ‘digital twin’. This would be an online model of a person, created using real data and tuned to exactly how that person’s body works.  This means you would be able to ‘test’ things in advance on this digital twin. For example, testing if certain drugs work to help an individual, or not. To create a digital twin – which models how all the body’s systems work together – you need fundamental understanding across molecular, cellular, tissue, organ and system scales. Working to understand the heart at cellular, tissue and organ level is Dr JC Han. JC is focused on how the heart muscle contracts to pump blood around the body, and specifically how much energy it uses to do this. Working with rat animal models and a specific instrument developed at the ABI, JC wants to understand the efficiency of the heart muscle system, and what happens when things go wrong. Listen to the episode to join the party, learn more about the concept of a digital twin, and hear JC explain the hidden physiology messages in some heart-related songs. Follow Our Changing World on Apple Podcasts, Spotify, Stitcher, iHeartRADIO, Google Podcasts, RadioPublic or wherever you listen to your podcasts

Digital twins and beating hearts
0:00 / 27:04
Science and environment

Papanui bush restoration project to commemorate King coronation

A community project in Christchurch to restore Papanui's bush is holding a special event to commemorate the coronation of King Charles III. Since 2017, the Papanui Rotary with support of the City Council has been planting thousands of native trees and shrubs at Bridgestone Reserve. On Saturday, the Christchurch Mayor, Phil Mauger will plant a rimu at the entrance of the reserve, which will be followed by a community day of action. Project lead, Denis McMurtie talks to Charlotte.

Papanui bush restoration project to commemorate King coronation
0:00 / 10:26
Science and environment

Another false start for Great Walks’ booking system

Hopes were high that dates for booking spots on the Great Walks would be released yesterday. But trampers and tourism businesses were disappointed, again. The Department of Conservation has had another false start with the bookings system. Tourism reporter Tess Brunton has more.

Another false start for Great Walks’ booking system
0:00 / 3:33
Science and environment

How much screen time should pre-schoolers be exposed to?

Many of us parents are guilty of putting on an episode of the Wiggles, maybe Bluey to entertain the kids...but how much screen time is too much in early childhood? New research has shown that higher levels of screen time in early childhood have been linked to poorer developmental outcomes for Kiwi kids. Dr Megan Gath from the University of Canterbury's Child Well-Being Research Institute is one of the researchers behind this study. She speaks to Jesse.

How much screen time should pre-schoolers be exposed to?
0:00 / 7:15
Science and environment

Kennedy Warne: Exploring humanity’s relationship with the sea

Kennedy Warne, the founding editor of New Zealand Geographic connects his lifelong exploration of the underwater world with a global story of humanity’s relationship with the sea in his new book Soundings.

Kennedy Warne: Exploring humanity’s relationship with the sea
0:00 / 27:51

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