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Japanese invention could end tooth decay

Scientists in Japan have created a microscopically thin film that can coat individual teeth to prevent decay or to make them appear whiter, the chief researcher said. The “tooth patch” is a hard-wearing and ultra-flexible material made from hydroxyapatite, the main mineral in tooth enamel, that could also mean an…

Bee study reveals ‘hunter-gatherer’ and ‘nurturing’ roles in hives

Experiments on division of labour among honeybees reveal why some worker bees are foragers while others nurse their queens Experiments on the division of labour in honeybee hives have revealed why some bees do the waggle dance while others nurse their queens. The roles require drastically different behaviours, with nurses…

How artificial intelligence is changing our lives

How artificial intelligence is changing our lives In Silicon Valley, Nikolas Janin rises for his 40-minute commute to work just like everyone else. The shop manager and fleet technician at Google gets dressed and heads out to his Lexus RX 450h for the trip on California’s clotted freeways. That’s when…

Scientists plead for urgent action to tackle the growing dementia crisis

Urgent action needs to be taken across society to halt the spiralling numbers of dementia cases in the UK, doctors and scientists have warned. Measures should include boosting numbers of people who donate their brain to research banks, increasing dementia research funds and encouraging young researchers to work in the…

Slices of brain tissue can store patterns of activity for short periods of time: scientists

It sounds like the plot of a science fiction film, or like something from a transhumanist fantasy: researchers from Case Western Reserve University in Cleveland, Ohio, report that they can induce memory-like patterns of activity in slices of brain tissue, and that the slices can store these activity patterns for…

NASA finds two ‘hot Jupiters’ in star cluster

US scientists have for the first time found proof that planets can form and survive around sun-like stars within dense star clusters, NASA said Friday. Astronomers have spotted two Jupiter-like orbs in the Beehive Cluster, a collection of around 1,000 stars that appear to be swarming around a common center.…

Aging Mars rover discovers geological mystery

NASA’s Opportunity rover, older brother to the Curiosity rover that landed on Mars last month, has made a new discovery that geologists find both puzzling and exciting, the US space agency said Friday. Opportunity, which has been on the Red Planet since 2004, has come across an outcrop of tiny…

Government study: Climate change boosted ‘unprecedented’ drought

An Australian government study published Friday claims to establish a direct cause-and-effect relationship between man-made climate change and the country’s recently ended decade of “unprecedented” drought. While the study establishes a link between climate change and drought, authors of the South Eastern Australian Climate Initiative’s synthesis report (PDF) said the…

Researchers hope ‘bat cave’ will prevent deadly white-nose syndrome

One October evening, as an autumn chill descends with the darkening sky, a great cloud of bats will rise out of the woods at a pre-arranged signal and dive with their thousands of beating wings down a concrete shaft and into a secure underground bunker, AKA the bat cave. At…

French doctors: Half of all prescribed medicines are ‘useless or dangerous’

Half of all medicines being prescribed by doctors in France are either useless or potentially dangerous for patients, according to two eminent medical specialists. They blame the powerful pharmaceutical companies for keeping these drugs on sale at huge expense to the health system and the taxpayer. Professor Philippe Even, director…

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