What is the smallest particle of matter? How does radiation affect our bodies? And, how is particle physics useful in our everyday lives?
CrowdScience takes on particle physics questions from listeners all over the world. Marnie Chesterton and Anand Jagatia get help from particle physicists from the Large Hadron Collider at CERN and medical physicist Heather Williams.
Presented by Marnie Chesterton and Anand Jagatia
Produced by Cathy Edwards, Jen Whyntie and Louisa Field
Reports of so-called 'murder hornets' have been all over the news this week. (Even though they were first spotted in the United States late last year.) We talk with entomologist Samuel Ramsey who explains how much of a threat the Asian giant hornet could be to honeybees throughout the country. And, he shares his own encounter fighting these insects while researching bees in Thailand.
Research from New York examining the blood of people who have recovered from Covid – 19 shows the majority have produced antibodies against the disease, The researchers hope to soon be able to establish whether this confers long term immunity as with more common viral infections.
And Research in Berlin and London has identified biomarkers, minute signs of the disease which may help clinicians identify who is likely to develop severe symptoms and what kind of treatment they might need.
Mutations have been much in the headlines, these are a natural processes of evolution and not just in viruses, but the term is misunderstood, two studies focusing on different aspects shed some light on what mutation in SARS-CoV-2 really means.
(Image: People wear face masks as they cross a street in Times Square in New York City. Credit: Kena Betancur/AFP via Getty Images)
Political violence aside, the 20th century saw great progress. Looking at health progress, as one example, Princeton University economist Anne Case notes it was a century of expanding lifetimes.
“Just to take one particular group,” she tells interviewer David Edmonds in this Social Science Bites podcast, “if you look at people aged 45 to 54 in the U.S., back in 1900 the death rate was 1,500 per 100,000. By the end of the century, it was down below 400 per 100,000.
“The risk of dying just fell dramatically and fairly smoothly. There were a couple of spikes -- one was the 1918 flu epidemic -- and a little plateau in the 1960s when people were dying from having smoked heavily in their 20s and 30s and 40s. But people stopped smoking, there was a medical advance as antihypertensives came on the scene, and progress continued from 1970 through to the end of the century.”
Even stubborn health disparities – such as the life expectancy gaps between say whites and blacks, or between the rich and the poor - narrowed in the century’s second half.
“We thought that sort of progress should continue,” Case says. But as she and fellow Princeton economist Angus Deaton found as they sleuthed through the data, starting in the 1990s progress had reversed for a fairly large demographic in the U.S. population.
“[W]hat Angus and I found was that after literally a century of progress, among whites without a college degree – these would be people without a four-year degree in the U.S. – mortality rates stopped falling and actually started to rise.”
The trend was clear: looking at figures from the 1990s to the most recent data available from 2018, mortality among middle-aged, non-college-educated white Americans rose, stalled, then rose again.
“This was stunning news to us and we thought we must have done something wrong because this never happens, or if it had happened, it would have been reported,” Case admits. But it was news, and Case and Deaton’s findings and analysis – that controllable behaviors like drug addiction, suicide and alcohol addiction were driving the numbers – created a furor. Citing sociologist Emile Durkheim’s argument that suicide is more likely when social integration breaks down, Case explains, “We think of all of these as a form of suicide – not necessarily that a drug addict wants to take him or herself out, but that it leads to that eventually.”
Meanwhile, Case and Deaton’s shorthand expression ‘deaths of despair’ entered the common –not just the academic social science – lexicon. (It helped that they were speaking publicly about this “group that just wasn’t on anyone’s radar” at roughly the same time that a demographic both similar and similarly ‘unknown’ was seen as a surprise well of strength for the political maverick Donald Trump.)
Deaths of Despair and the Future of Capitalism is also the name of the new bestselling book that Case and Deaton, her husband, have written for Princeton University Press. (Deaton, a Nobel laureate in economics, has also appeared on Social Science Bites.) The book looks at the physical and mental causes of these deaths – Case and Deaton count 150,000 of them in 2018 alone – and how aspects of America’s unique medical and pharmaceutical system have resulted in this unique tragedy.
Case explains that these deaths of despair didn’t suddenly arise in the 1990s, but they had been obscured by advances made in treating heart disease (and obesity, despair, drugs, alcohol are all hard on the heart). “As deaths of despair got larger and larger, it would have taken more progress against heart disease for this to continue to fly under the radar. Instead what happened was we stopped making progress against heart disease.”
Also in the 1990s, prescription opioids became widely available in the United States – “a self-inflicted wound,” Case says that made the existing trend “horrifically” worse. “In the U.S. in the mid-1990s Oxycontin was allowed onto the streets. Any doctor with a script could prescribe it. It’s basically heroin in pill form with an FDA label on it, and they sprinkled it like jelly beans. It landed on very fertile soil.”
Between opioids and existing problems with America’s mostly private health care system, deaths from despair keep rising.
What might end this cycle? Something dramatic, Case says. And perhaps something already creating drama …
“We think something is going to have to break, and break badly, in order for us to see reform. Maybe, possibly, COVID-19 is breaking things really badly and this might be a time when enough people in the middle of the distribution start talking about reform, then it might be possible to see change.”
Anne Case is the Alexander Stewart 1886 Professor of Economics and Public Affairs, Emeritus at Princeton, where she directs the Research Program in Development Studies. She’s received numerous awards for her work on the nexus between economic health and physical health, including the Kenneth J. Arrow Prize in Health Economics from the International Health Economics Association and the Cozzarelli Prize from the Proceedings of the National Academy of Sciences. She is a research associate of the National Bureau of Economic Research, a fellow of the Econometric Society, and an affiliate of the Southern Africa Labour and Development Research Unit at the University of Cape Town. Case is a member of the National Academy of Medicine, the American Academy of Arts and Sciences, and the American Philosophical Society.
With a lot of us stuck at home, trying to physically distance from each other, one part of daily life has largely disappeared: bumping into strangers. On today's show, Maddie talks with Yowei Shaw, a reporter from NPR's Invisibilia, about the surprising benefits of stranger interactions. And Short Wave tries out QuarantineChat, a workaround to our current strangerless existence.
The Trump administration has advanced the theory the coronavirus began as a lab accident, but scientists who research bat-borne coronaviruses disagree. Speaking with NPR, ten virologists and epidemiologists say the far more likely culprit is zoonotic spillover—transmission of the virus between animals and humans in nature. We explain how zoonotic spillover works and why it's more plausible than a lab accident.
Dark energy makes up almost 70% of our universe and is believed to be the reason the universe is expanding. Yet very, very little is known about it. To figure out what we do know — and what it could tell us about the fate of the universe, we talked to astrophysicist Sarafina Nance. She studies cosmology, a field that looks at the origin and development of the universe.
The 1918 flu outbreak was one of the most devastating pandemics in world history, infecting one third of the world's population and killing an estimated 50 million people. While our understanding of infectious diseases and their spread has come a long way since then, 1918 was notably a time when the U.S. practiced widespread social distancing.
Remdesivir a drug eventually rejected as a treatment for Ebola seems to have aided recovery in a trial with more than a thousand Covid -19 patients. Researchers are cautious but hopeful; a leading health official in the US has made comparisons with the impact of game changing drugs used to treat HIV.
In contrast an organisation researching the mechanisms by which bat coronaviruses infect humans has had its funding cut following criticism from President Trump.
A scheme to help manufacture ventilators and protective equipment worldwide has seen some success with a simple ventilator they developed, now in use in hospitals.
And we look at climate change –with this year set for extreme weather
What’s the importance of zero, and how was it discovered? How do scientists calculate Pi’s infinite digits? Why do so many people find maths difficult – and what’s the most difficult thing in maths?
CrowdScience takes on a whole bunch of questions sent in by high school students in Spain. Like many children all over the world, their school is currently closed due to the coronavirus lockdown, but lessons continue at home. So how are their studies going, and can CrowdScience help out?
We attempt to answer some of their trickiest maths questions with the help of mathematics whizz Katie Steckles, Pi aficionado Matt Parker, and mathematical biologist Kit Yates.
What’s the importance of zero, and how was it discovered? How do scientists calculate Pi’s infinite digits? Why do so many people find maths difficult – and what’s the most difficult thing in maths?
CrowdScience takes on a whole bunch of questions sent in by high school students in Spain. Like many children all over the world, their school is currently closed due to the coronavirus lockdown, but lessons continue at home. So how are their studies going, and can CrowdScience help out?
We attempt to answer some of their trickiest maths questions, with the help of mathematicians Katie Steckles and Matt Parker, and mathematical biologist Kit Yates.
