Eat candy and fight tooth decay. What a sweet concept, right?
Well, microbiologists in Berlin are trying to make that dream a reality.
They've created a sugarless mint that's aimed at washing out cavity-causing bacteria from your mouth. And the candy works in a curious way: It's spiked with dead bacteria. It's like probiotics for your teeth.
The experimental mint is still in the early days of development — and far from reaching the shelves at Walgreens.
Originally published on Tue December 10, 2013 3:39 pm
We all know the story, or think we do.
Let me tell it the old way, then the new way. See which worries you most.
First version: Easter Island is a small 63-square-mile patch of land — more than a thousand miles from the next inhabited spot in the Pacific Ocean. In A.D. 1200 (or thereabouts), a small group of Polynesians — it might have been a single family — made their way there, settled in and began to farm. When they arrived, the place was covered with trees — as many as 16 million of them, some towering 100 feet high.
Israel, Jordan and the Palestinians have agreed to a water-sharing pact that would see the construction of a desalination plant on the Gulf of Aqaba on the Red Sea and bring "a long-awaited Red Sea-Dead Sea pipeline one step closer to completion," according to Reuters.
An advocacy group is calling to phase out segregated sheltered workshops for Alabamians with disabilities.
Leaders of the Alabama Disabilities Advocacy Program say taxpayer money now going to the workshops would be better used to move Alabamians with disabilities into regular jobs, where they are part of the community.
An animal's ranking on the food chain depends on where its meals place on the ladder. That puts plants on the bottom (they make all their food), polar bears on top and people somewhere between pigs and anchovies.
Northern shrimp are shoveled into a holding chamber on a trawler in the Gulf of Maine in 2012. Stocks of the shrimp have been declining for several years, leading regulators to cancel the New England shrimping season.
Credit Tom Porter / Maine Public Broadcasting
Chefs Andrew Taylor, left, and Mike Wiley, co-owners of two Portland, Maine, restaurants, say the moratorium is worth it if it helps sustain the shrimp population.
New England chefs like Andrew Taylor and Mike Wiley are still coming to terms with the news: No more shrimp until further notice.
This week, regulators shut down the New England fishery for Gulf of Maine shrimp for the first time in 35 years. The Atlantic States Marine Fisheries Commission judged the stocks of the popular shrimp, also known as northern shrimp, to be dangerously low.
In the latest smog-related health scare in China, officials in Shanghai on Friday ordered schoolchildren to stay indoors, halted all construction and even delayed flights in and out of the city, which has been enveloped in a thick blanket of haze, reducing visibility in places to less than 150 feet.
NPR's Frank Langfitt reports from Shanghai that the commercial capital's Air Quality Index soared above 500 for the first time ever, according to government sensors. He says officials described the readings as "beyond index" — in layman's terms, off-the-charts awful.
In "Bitter Pill: Why Medical Bills Are Killing Us," a 26,000-word investigative piece in TIME magazine, journalist and entrepreneur Steven Brill catalogues the myriad reasons for America's skyrocketing healthcare costs, from extravagantly paid administrators at nonprofit hospitals to bloated bills for hospital care. And Obamacare, he argues, won't do much to solve the problem.
Drawing from research presented at this year's Acoustical Society of America conference, psycholinguist Stefanie Shattuck-Hufnagel untangles tongue twisters to look at speech planning patterns, and professor Amalia Arvaniti discusses the "Valley Girl" dialect.
In 2008, Congress passed a law requiring most rail networks to install "positive train control" collision technology by 2015. Engineering professor Christopher Barkan discusses train safety systems, how "positive train control" might prevent accidents, and whether railroads will be able to meet the deadline.
For 25 seasons, The Simpsons writers have been smuggling math onto Americans' TV screens. Author Simon Singh helps Ira decode the show's numberplay, while former Simpsons writer David X. Cohen remembers how he helped Homer solve Fermat's Last Theorem (sort of).
This week China launched its Chang'e-3 lunar lander, with the Jade Rabbit moon rover on board. BBC science editor David Shukman, who got a behind-the-scenes glimpse of China's secretive space program during a recent trip there, talks about the motivations behind the country's moonshot.
Originally published on Fri December 6, 2013 12:15 pm
HIV has reappeared in the blood of two Boston patients who scientists had hoped had been cured of their infections.
This disappointing development, reported by The Boston Globe's Kay Lazar, is yet another cautionary tale of how researchers can never afford to underestimate the human immunodeficiency virus's ability to hide out in patients' bodies and overcome their most ingenious efforts to eliminate it.
This is an alarming story, not because it ends badly. It's alarming because it ends well. It shouldn't have, but it did, and biologists (and especially conservationists) now have a puzzle to ponder.
The story begins in central China, in an apple-growing region called Maoxian County, near the city of Chengdu. In the mid-1990s, the bees that regularly showed up there every spring suddenly didn't. Apple farmers, obviously, need bees. Bees dust their way through blossoms, moving from flower to flower, pollinating, which helps produce apples in September.