Science Friday Folgen

California Accelerates Its Push For Electric Cars This week, air pollution regulators in California voted to phase out sales of new gasoline-powered vehicles, with a complete ban on gas car sales by 2035. The decision could have a larger impact on the automobile industry, however, as many states choose to follow California’s lead with regard to air quality and emissions decisions. Sophie Bushwick, technology editor at Scientific American, joins guest host Roxanne Khamsi to help unpack the decision. They also discuss some of the other science stories from this week, including a survey-based study showing that Americans really do care about climate change and support mitigation measures, a look at how sugar substitutes can change the microbiome, and an engineer’s advice for how to build the sturdiest sandcastles.   Meet Two Autistic Researchers Changing How Autism Research Is Done For many decades, autistic people have been defined by non-autistic people, including in science. Since the very beginning of research about autistic people, neurotypical scientists and institutions have been at the helm. The field has largely been defined by what neurotypical researchers are curious about learning, instead of prioritizing research that the autistic community asks for. Because of that, and the invisibility of autistic adults in our society, a large chunk of this research has neglected the needs of autistic people. In many cases, it’s caused harm to the very people the research aims to help. Until recently, there have been very few openly autistic researchers who study autism. But there is a growing body of openly autistic scientists who are using both their expertise and their own lived experiences to help shape the future of autism research. Guest host Roxanne Khamsi speaks with Dr. TC Waisman, a leadership coach and researcher studying autism and higher education, based in Vancouver, British Columbia, and Patrick Dwyer, a Ph.D. candidate studying sensory processing and attention in autism at the University of California, Davis. They talk about the history of autism research, why the inclusion of autistic people in research leads to more helpful outcomes, and how they see the future of autism research changing. Ira Kraemer consulted on this story.   Ecological Data From Deep In The Pantry Most people wouldn’t be excited by a call offering a basement full of canned salmon dating back to the 1970s. But for researchers trying to establish baselines for what’s normal and what’s not when it comes to aquatic parasite populations, the archive of fishy tins, maintained by the Seattle-area Seafood Products Association, was a valuable resource. Natalie Mastick and colleagues combed through the tins with tweezers, counting the numbers of parasitic anisakid worms they found. (Since the salmon was cooked, the worms—though gross—posed no risk to human eaters.) The team found that in their samples of chum and pink salmon, the incidence of parasitic infection increased over the 40 years covered by the salmon archive. The finding might be good news—an increase in the numbers of marine mammals in the area, key hosts for the parasites, could be responsible for the wormy increase. Natalie Mastick, a PhD candidate in the University of Washington’s School of Aquatic and Fishery Sciences, joins guest host Roxanne Khamsi to explain the study.   Medieval Friars’ Farming May Have Caused Tummy Troubles What was life like back in medieval England? You might think that the learned friars who lived in the town of Cambridge—scholars, with access to innovations like latrines and places to wash their hands—might have lived healthier lives than the common folk. But a recent study published in the International Journal of Paleopathology says that, at least when it comes to intestinal parasites, the friars may have been worse off. Dr. Piers Mitchell runs the Cambridge Ancient Parasites Laboratory and is a senior research associate in the McDonald Institute for Archaeological Research. Mitchell and colleagues excavated soil samples from around the pelvises of medieval skeletons in one Cambridge cemetery, then examined the soil microscopically looking for parasite eggs. They found that friars in the cemetery had almost twice the incidence of intestinal parasites as commoners in the town—a fact they speculate could be related to friars using human feces, from the friary latrine, to fertilize the gardens. Mitchell joins guest host Roxanne Khamsi to explain the study.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

Attracting Birds To Prime Habitat By Playing Recordings Of Their Calls How do you know a restaurant is good? If the parking lot is full of cars, that’s a pretty good indication. If it’s empty, you probably won’t bother stopping. In this case, the restaurant is a newly restored wetland in Michigan and the customers are rails. The birds migrate at night, so if they don’t hear other rail calls in an area, they’re not likely to stop. Researcher Dustin Brewer is broadcasting recorded rail calls to try to bring the secretive birds to prime habitat—to feed and mate. Rails are declining, mostly due to habitat loss. Experts say if rails are influenced by these recordings, it could help increase the bird’s population.   Collars, Cameras, And Carcasses: Studying Urban Wildlife When you hear the words “urban wildlife,” you might think of rats scampering across a street, pigeons plopped on railings, or crows fighting over a pizza crust. But urban wildlife are so much cooler and more diverse than they get credit for, and scientists have a lot to learn from them. In the blink of an evolutionary eye, urban wildlife have quickly adapted to changing landscapes and learned to take advantage of sprawling urban areas. Guest Roxanne Khamsi speaks with Dr. Chris Schell, an assistant professor studying urban ecology at the University of California, Berkeley. They chat about why urban wildlife is so cool, how scientists can study them, and what we can learn from our scrappy neighbors.   A New Lyme Disease Test In Development May Help Improve Treatment Roughly 476,000 people in the United States are diagnosed and treated for Lyme disease each year, according to Centers for Disease Control and Prevention (CDC) estimates. However, the CDC says that this number is likely an overcount because many patients receive treatment based on symptoms without a positive test result. On top of that, there are some limitations of the diagnostic tests available for Lyme disease. The FDA-approved Lyme disease tests can only determine if a patient has had Lyme disease in the past, not if they currently have an infection. The test cannot determine if antibiotic treatment was successful, or if a positive test result is due to a re-infection. Guest host Roxanne Khamsi talks with Pete Gwynne, a molecular and microbiologist at the Tufts Lyme Disease Initiative, who is working to solve some of these problems by developing a new diagnostic test for Lyme disease.   ‘I Will Not Be Vole Girl’—A Biologist Warms To Rodents The path to becoming a scientist is not unlike the scientific process itself: Filled with dead ends, detours, and bumps along the way. Danielle Lee started asking questions about animal behavior when she was a kid. She originally wanted to become a veterinarian. But after being rejected from veterinary school, she found a fulfilling career as a biologist, doing the type of work she always wanted to do—but never knew was possible for her. Science Friday producer Shoshannah Buxbaum talks with Dr. Danielle Lee, a biologist, outreach scientist, and assistant professor in biology at Southern Illinois University about what keeps her asking questions, what rodents can help us understand about humans, and the importance of increasing diversity in science. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

Teen Innovator’s New AI Tool Helps Create Affordable Drugs The U.S. has some of the highest prescription drug prices in the world, which can push patients into bankruptcy over medications they cannot afford. More than three in four American adults think the prices of prescription drugs are unaffordable, prompting the Senate to recently pass a bill intended to help lower prescription drug costs for seniors. One young innovator set out to find his own solution. 17 year-old Rishab Jain developed ICOR, a tool to improve the rapid production of drugs like COVID-19 vaccines. Ira talks with  Jain from Portland, Oregon, about his innovation and vision for the future.   When Trapping Invasive Bugs Is Science Homework The spotted lanternfly, an invasive species, was first introduced to the U.S. in Pennsylvania, around 2014. Since then, it has spread aggressively, and has now been spotted in 11 states. The bug is pretty—adult spotted lanternflies are about an inch long, and feature striking spotted forewings and a flashy red patch on the hindwings. But they are also very hungry, and pose a significant threat to agricultural crops, including grapevines. Many control efforts have focused on either stomping the insects on sight, or on spotting and destroying the egg masses that the lanternflies lay in the fall. However, researchers have been developing trapping techniques for the bugs as well. One, involving a sticky band looped around a tree, is effective—but can also snare other insects and even birds. Experts at the Penn State Extension have come up with a new style of circle trap for lanternflies, based upon an existing trap for pecan weevils. Now, STEM educators at Rutgers University are using that design as the starting point for an engineering design challenge, asking K-12 teachers and students to come up with improvements to the design. Read the rest at sciencefriday.com. Should Kids Get Vaccinated If They’ve Already Had COVID-19? It’s nearing the end of August, which means it’s back-to-school season. There’s a big difference between this school year and last: All children are now eligible for the COVID-19 vaccine. This means the risk of disease will likely be way down, compared to the past two autumns, according to vaccine researcher and pediatrician Paul Offit. But for kids who have already been infected by COVID-19, will the vaccine add meaningful immunity? “My answer to that question is yes,” Dr. Offit tells Ira. “Then you can be sure that they will then develop the kind of immunity that will likely lead to fairly long-lived protection against serious illness.” Ira and Dr. Offit also discuss the risk of monkeypox and polio spreading in schools, and how to best keep our kids safe against infectious disease this fall.   The Countdown Begins For Humanity’s Return To The Moon NASA’s largest and most powerful rocket ever began inching its way to Launch Pad 39B at Kennedy Space Center in Florida on Tuesday night. Over twelve years in the making, the long-delayed, over-budget Space Launch System rocket is finally nearing its first chance for liftoff at the end of this month. The August 29th targeted launch will mark the beginning of the Artemis program—NASA’s series of missions designed to send humans to the Moon and, eventually, Mars. The multi-billion dollar orange rocket now stands taller than the Statue of Liberty, resembling a colossal upside-down carrot. Its maiden uncrewed flight will carry a trio of mannequins equipped with radiation sensor vests in preparation for crewed flights slated for 2024. These future missions will be the first to return people to the Moon since Apollo 17 in 1972. Read the rest at sciencefriday.com.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.