Declining the FTA would hamper the free movement of goods and damage the Colombian economy in a time of rebound.

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Much of the damage looks like the result of oxidation by free radicals (oxygen-rich compounds released during cellular energy production).

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Much of the brain damage suffered during a stroke is caused by the release of so-called "free radical" molecules.

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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.

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One common worry is that it may damage their chances of joining either the Schengen passport-free area, or the euro, or both.

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Ultimately, it is providing a free service, and recognizes no liability for damage done by the withdrawal of that service beyond the cost of the service.

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Professor Petot said it was possible that when fat was broken down by the body it released substances known as free radicals that can cause tissue damage, and might precipitate the development of Alzheimer's symptoms.

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While their handsets were scratch-free when they come out of the box, the handsets soon picked up significant damage on the back and sides from light usage.

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Drilling a few centimetres inside a rock provides a fresh sample that is free from the alteration that can occur at the surface as a result of weathering or radiation damage.

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As free radicals have the potential to cause genetic damage, they may be linked to the development of tumours, the scientists suggest.

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