Tag Archives: Science

Technologies: New Plant-Based Plastics & Waste Plastic Into Hydrogen

Plastic has become a malevolent symbol of our wasteful society. It’s also one of the most successful materials ever invented: it’s cheap, durable, flexible, waterproof, versatile, lightweight, protective and hygienic.

During the coronavirus pandemic, plastic visors, goggles, gloves and aprons have been fundamental for protecting healthcare workers from the virus. But what about the effects on the environment of throwing away huge numbers of single-use medical protection equipment? How are we to balance our need for plastic with protecting the environment?

Delayed as a result of the pandemic, the film is being released now because it considers how society might ‘reset the clock’ when it comes to living better with a vital material.

We hear how Cambridge University’s Cambridge Creative Circular Plastics Centre (CirPlas) aims to eliminate plastic waste by combining blue-sky thinking with practical measures – from turning waste plastic into hydrogen fuel, to manufacturing more sustainable materials, to driving innovations in plastic recycling in a circular economy.

“As a chemist I look at plastic and I see an extremely useful material that is rich in chemicals and energy – a material that shouldn’t end up in landfills and pollute the environment,” says Professor Erwin Reisner, who leads CirPlas, funded by UK Research and Innovation.

“Plastic is an example of how we must find ways to use resources without irreversibly changing the planet for future generations.”

Explore more: CirPlas: https://www.energy.cam.ac.uk/Plastic_…

 

Top New Science Podcasts: Higher Covid-19 Severity In Men, Bacteria Tracking

science-magazine-podcastsFirst up this week, Staff Writer Meredith Wadman talks with host Sarah Crespi about how male sex hormones may play a role in higher levels of severe coronavirus infections in men. New support for this idea comes from a study showing high levels of male pattern baldness in hospitalized COVID-19 patients.

Next, Jason Qian, a Ph.D. student in the systems biology department at Harvard Medical School, joins Sarah to talk about an object-tracking system that uses bacterial spores engineered with unique DNA barcodes. The inactivated spores can be sprayed on anything from lettuce, to wood, to sand and later be scraped off and read out using a CRISPR-based detection system. Spraying these DNA-based identifiers on such things as vegetables could help trace foodborne illnesses back to their source. Read a related commentary piece.

New Research Podcasts: “Human Brains Are Wired To Enjoy Musical Pitch”

The Scientist PodcastsIn this month’s episode, we learn that human brains differentiate musical pitch a way that macaque monkeys do not. In fact, speech and music shaped the human brain’s hearing circuits. Researchers are studying these circuits with an eye on developing treatments for neurological disorders. 

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Top New Science Podcasts: Covid-19 Inflammatory Response, Glacier Retreat

science-magazine-podcastsFirst up this week, Staff Writer Jennifer Couzin-Frankel talks with host Sarah Crespi about a rare inflammatory response in children that has appeared in a number of COVID-19 hot spots. 

Next, Julian Dowdeswell, director of the Scott Polar Research Institute and professor of physical geography at the University of Cambridge, talks with producer Meagan Cantwell about tracing the retreat of Antarctica’s glaciers by examining the ocean floor. Finally, Kiki Sanford interviews author Danny Dorling about his new book, Slowdown: The End of the Great Acceleration―and Why It’s Good for the Planet, the Economy, and Our Lives.

Top New Science Podcasts: Splitting Water With Light, Missing Matter And Working Memory (Nature)

nature-podcastsThis week, perfecting catalysts that split water using light, the mystery of missing matter in the Universe and how working memory ‘works’ in children.

In this episode:

00:44 Water splitting

After decades of research scientists have managed to achieve near perfect efficiency using a light-activated catalyst to separate hydrogen from water for fuel. Research Article: Takata et al.News and Views: An almost perfectly efficient light-activated catalyst for producing hydrogen from water

05:37 Research Highlights

The hidden water inside the earth’s core, and how working memory ‘works’ in children. Research Highlight: Our planet’s heart is wateryResearch Highlight: A child’s memory prowess is revealed by brain patterns

07:53 Measuring matter

Estimations of baryonic matter in the Universe have conflicted with observations, but now researchers have reconciled these differences. Research Article: Macquart et al.

13:42 Pick of the Briefing

We pick our highlights from the Nature Briefing, including the possibility of a black hole in our solar system, and the biting bees that force plants to bloom. Physics World: If ‘Planet Nine’ is a primordial black hole, could we detect it with a fleet of tiny spacecraft?; Scientific American: Bumblebees Bite Plants to Force Them to Flower (Seriously)

Top Science Podcasts: Latest Update On Covid-19 Vaccines, WHO Ultimatum

Coronapod ReportThe first results from vaccine trials are in and they are encouraging, but scientists are still urging caution. We hear the lowdown on the types of vaccines being developed and what hope there is of rolling them out any time soon. 

01:38 Trump vs the WHO

President Trump has given the WHO an ultimatum in a tweet, threatening to pull out of the organisation within 30 days unless unclear demands are met. We discuss what this means for the pandemic, the USA and the future of international health cooperation

12:06 Where are we with vaccines?

The first results from vaccine trials are in and they are encouraging, but scientists are still urging caution. We hear the lowdown on the types of vaccines being developed and what hope there is of rolling them out any time soon.

News: Coronavirus vaccine trials have delivered their first results — but their promise is still unclear

News: The race for coronavirus vaccines: a graphical guide

News: If a coronavirus vaccine arrives, can the world make enough?

25:20 One good thing

Our hosts pick out things that have made them smile in the last week, including hopeful antibody research, at-home sketch comedy and printable board games.

News: Potent human antibodies could inspire a vaccine

Video: Whiskers R we – SNL

Video:The wild affordable world of 1 Player Print’n’Play Games

Video:MORE of the Very Best Solitaire Print’n’Play Games

Video: Marble run league

Video: BBC goals at home (Only available in the UK)

30:04 The latest coronavirus research papers

Noah Baker takes a look through some of the key coronavirus papers of the last few weeks.

News: Coronavirus research updates

medRxivSaliva is more sensitive for SARS-CoV-2 detection in COVID-19 patients than nasopharangel swabs

Nature: Effect of non-pharmaceutical interventions to contain COVID-19 in China

Science: Changes in contact patterns shape the dynamics of the COVID-19 outbreak in China

New England Journal of Medicine:

Top New Science Podcasts: The Struggle To Reopen Labs After Covid-19 And Arsenic In Drinking Water

science-magazine-podcastsOnline News Editor David Grimm talks with producer Joel Goldberg about the unique challenges of reopening labs amid the coronavirus pandemic. Though the chance to resume research may instill a sense of hope, new policies around physical distancing and access to facilities threaten to derail studies—and even careers. 

Despite all the uncertainty, the crisis could result in new approaches that ultimately benefit the scientific community and the world. Also this week, Joel Podgorski, a senior scientist in the Water Resources and Drinking Water Department at the Swiss Federal Institute of Aquatic Science and Technology, joins host Sarah Crespi to discuss the global threat of arsenic in drinking water. Arsenic is basically present in all rocks in minute amounts. Under the right conditions it can leach into groundwater and poison drinking water. Without a noticeable taste or smell, arsenic contamination can go undetected for years. The paper, published in Science, estimates that more than 100 million people are at risk of drinking arsenic-contaminated water and provides a guide for the most important places to test.