946 resultados para 730109 Surgical methods and procedures
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Macrofossil series from mountainous and polar areas such as the Alps, the Scandes, and the Rocky Mountains provide useful information about the late Quaternary course of treelines. Reconstructions of past treeline positions and compositions after the Ice Age can be used to infer paleoclimatic information or to study treeline ecosystem responses to (rapid) climatic change. Both approaches are illustrated by study cases. In addition to these paleoclimatic and paleoecological issues, macrofossil records can be used to validate dynamic treeline vegetation models. An example from the Alps shows the high potential of such a procedure towards applying forest-succession models for assessing future vegetation dynamics at treeline.
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Texas Department of Transportation, Austin
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Issued Dec. 1979.
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Mode of access: Internet.
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Mode of access: Internet.
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Shipping list no.: 2001-0261-P.
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Mode of access: Internet.
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Running title : Practises and procedures of governmental control.
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National Highway Traffic Safety Administration, Washington, D.C.
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"CR807240."
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Cover title.
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Item 504
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Hearings held Apr. 19-June 13, 1977.
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Mode of access: Internet.
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Transportation Department, Office of Environment and Safety, Washington, D.C.