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Beech is subjected to devaluating bark damage by logging operations. It is shown experimentally that damage in the upper part of the trunk entails much higher risk of wood discoloration and decay by fungi than damage in the lower part. Cellular defense mechanisms in xylem are elucidated. During harvesting operations and more specifically processes of both(More)
All reagents for determination of thromboplastin time (Quick-test) tested so far are sensitive to non-carboxylated clotting factor X, and sensitivity varies, depending on the reagent. The thromboplastins of Behring and Thrombotest are very sensitive. The preparations of La-Roche and Boehringer are somewhat more sensitive than those of Dade and Goedecke.(More)
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