Polystyrene foam, sometimes sold under the brand name Styrofoam, has long been popular among restaurateurs for lightweight, heat-retaining containers, but environmentalists complain it takes years to break down in trash.
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This involves sealing a foam deep in an open wound under suction to help condition the base tissues to get them ready to receive a graft.
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To mimic the curved spine of the poet, who died in 1999, he designed a foam sphere that he put under his back.
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