Much of the brain damage suffered during a stroke is caused by the release of so-called "free radical" molecules.
Eliminating free radical production would involve completely redesigning aspects of our metabolism, especially the way we use oxygen to extract energy from food.
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What makes a free radical so reactive, however, is that unlike most molecules it has an odd number of electrons and electrons prefer to arrange themselves in pairs.
"In cancer, we create free radical damage to tumor cells with treatment, and we want that, but antioxidants quench this damage, " explains Dr. Brian Lawenda, the clinical director of radiation oncology at the Naval Medical Center, in San Diego, California.
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Rather than building huts in Costa Rica, a Free Radical invents cheaper building materials, improves the logistics of getting materials where they need to be, creates a market to discover the right prices for materials and labor, educates Costa Ricans, hires them to do twenty-first-century work well beyond the grueling labor in sweatshops of the Far East and in the end, they can afford to build their own homes.
Getting rid of wonky mitochondria would reduce free-radical production and might thus slow down ageing.
In the late 1980s Floyd injected gerbils with a free-radical-trapping compound called phenylbutyl nitrone just before inducing a stroke.
Previous studies have suggested that both inflammation and free-radical damage may play a role in the onset of Alzheimer's and Parkinson's disease.
But sipping a wine made by a free-thinking, radical American winemaker is definitely appropriate.
New Democracy (ND) wants to stick to the fiscal limits agreed with Brussels but unleash a radical, free-market reform onto the economy: privatising faster, possibly introducing a flat tax to free up small businesses.
He implemented a radical programme of free-market reforms, removing subsidies, privatising state-owned companies and reducing the role of the state in almost all spheres of the economy.
Here's a radical idea, free of charge. (If you don't like it, blame my pal Herb Allison, president and COO of Merrill Lynch.) It starts with a painful premise: Rich baby boomers are not buying GM cars.
Other authors in recent years have used Internet material without attribution, including Chris Anderson, whose 2009 book "Free: The Future of a Radical Price" contained passages taken verbatim from Wikipedia.
"Freemium is really a construct of the digital age because there's almost no marginal cost to digital goods, " said Chris Anderson, author of "Free: The Future of a Radical Price, " and editor in chief of Wired magazine.
Endy aims for similar standardization in the new field of synthetic biology, and embraces the radical approach of creating a free registry of building blocks.
They add: "We believe in the radical notion that information should be free".
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The FLAMING LIPS: (Singing "Free Radicals") You think you're so radical.
Thatcher responded with radical reforms, shaped by the ideas of free-market economists Friedrich Hayek and Milton Friedman on minimizing government control and allowing markets free rein in deciding the shape of the economy.
This has long been championed by radical right wingers as a way of introducing the free market into education.
Or at least that's the case with the loud and radical fringe that has declared John McCain unacceptable because he's a free thinker they can't control.
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But the Radical party leader is Raul Alfonsin, a former president who is more critical of free-market policies than is Mr de la Rua.
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