"It means there is more light penetrating through the ice - that depends to a high degree on the snow cover but once it has melted the light can get through, " Dr Gerland said.

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Consider, for instance, the burgeoning phenomenon of sports teams that employ their own beat reporters to cover them, often with a high degree of independence.

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Dr Piekarski first became interested in AR when he was looking for a subject to cover in depth during the final year of his engineering degree.

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Private student loans are available to cover education costs at select schools offering undergraduate and graduate degree programs and are available to students with or without a cosigner.

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"To some degree, President Bush has blown Cheney's cover, " Palmieri said.

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The finance minister said that at this stage the scheme would not cover subsidies for food, fertiliser, diesel and kerosene because the government was proceeding with a "great degree of caution".

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