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.
On meeting a buckyball, a free radical grabs at the bounty of electrons smeared across the bucky's surface, but cannot break it so the radical stays stuck to it like a leech.
"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.
To call more attention to the issue of free scientific research, the Radical party is running Luca Coscioni for parliament.
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.
The Center for Security Policy finds itself in surprising company as it agrees with Vladimir Posner and Dmitri Simes -- two prominent Soviets with uneven records when it comes to their support for radical democratic and free market reform of the USSR -- that Gorbachev's day has passed .
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.
Just as proposals to privatise Social Security became less outlandish after Mr Bush mentioned it in 2000, so radical tax reform and free trade will get a big boost if Mr DeMint wins.
"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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Some of the reforms were cosmetic, but free elections in Iraq and Palestine did produce radical change, and in Lebanon a peaceful uprising succeeded in ending decades of Syrian tutelage.
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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.
The very notion of doing so, however, is considered so radical that supposedly moderate, pro-peace and free market friendly Palestinian Prime Minister Salaam Fayad rejected the economic peace plan put forward by Prime Minister Binyamin Netanyahu out of hand.
It calls on the Congress to take a close look at less problematic means including the use of existing institutions like the World Bank of promoting redevelopment in those East European nations that are committed to radical transformation of their political and economic systems and that have held free and fair national elections.
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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The reality is that we're in this mess because for eight years we were in the grip of a radical economic ideology that preached that all would be well if we just gave free rein to corporate greed and removed all constraints on it.
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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Mike Muendane of the radical Pan-Africanist Congress told the crowd that it was a dishonour to call South Africa a free country when children can be killed with impunity.
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