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Gallium-nitride is manmade and not found in nature, and historically, LEDs are made by growing a gallium-nitride layer on top of a base material, which is typically sapphire or, more recently, silicon carbide.
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Though the labeling does not explain how the works are made, some reliefs appear to be molded, others incised, then painted by applying pigment directly onto the clay or on a base coat of lime or other material.
WSJ: Theater, Life, and the Afterlife | China Institute | A Dynasty Without the Hereafter? | By Lee Lawrence
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According to a report on Swedish television, Russian boats sailed out at night to dump barrels of radioactive material, from a military base in Latvia, into Swedish waters.
BBC: Sweden wants explanation on Baltic nuclear 'dumping'
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Toe protection: material, usually large boulders, placed at the base of a sea defence structure like a seawall to prevent wave scour.
UNESCO: L O S S A R Y
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Ms Junz's study, which is argued with impeccable logic, rests on an impressive base in tax records and other hitherto unused archival material in six countries in which a large number of the victims of Nazism had lived: Austria, France, Hungary, Germany, the Netherlands and Poland.
ECONOMIST: Victims of Nazism
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Perhaps the monetary base has traditionally been considered one of the monetary aggregates, but its importance has always been that it is the raw material from which money can be created.
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