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LEADING EDGE
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Leading Edge brings you the latest news from the world of science. Geoff Watts celebrates discoveries as soon as they're being talked about - on the internet, in coffee rooms and bars; often before they're published in journals. And he gets to grips with not just the science, but with the controversies and conversation that surround it.
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"If what interests you are new and exciting ideas, it's science you should be turning to. And whether it's the Human Genome Project or the origins of the Universe, Leading Edge is the place to hear about them."
Geoff Watts |
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This week on Leading Edge - ancient giants, trust and radar technology used for breast screening.
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Trust
How do you decide who to trust and who not to trust? It's one of the key issues that monitors our social interactions with our fellow human beings.
Now researchers at Baylor College of Medicine in Houston, Texas have revealed what is going on in our brain as we decide who is trustworthy and who is not.
Using brain imaging techniques they asked 100 participants to play a simple game that involved trusting or not trusting a complete stranger.
The results could help us understand the evolutionary basis for trust, and even how to treat conditions such as Autism and Schitzophrenia.
Ancient giants
Gareth Mitchell visits the Karoo region of South Africa, an area that has proved incredibly rich pickings for scientists studying some of the earliest species of dinosaurs and other reptiles.
He talks to Dr Bruce Rubidge about his work on Dinocephalians, a class of mammal-like reptiles that may have been pre-cursors to dinosaurs.
Gareth also comes face to face with Antetinitrus, forerunner of the brontosaurus, and talks to Dr Adam Yates about the extraordinary fossil he discovered of these great big lumbering herbivores, that were one of the most successful of all the dinosaurs.
Breast cancer screen using radar
Researchers at Bristol University are developing a new test to detect breast cancer at an early stage.
Using radar technology, commonly found at the front end of missiles to seek out a target, researchers hope to detect cancerous lumps with greater accuracy than x-ray mammography.
Leading Edge returns in a new series on Thursday听May 19th, 2005
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