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Here, we describe the synthesis, bioactivity screening, and structure-activity relationships of various synthetic triterpenoids prepared from the cork processing byproducts friedelin (1) and 3-hydroxyfriedel-3-en-2-one (2) via oxidative procedures. The synthesis of compounds 2alpha-trimethylsiloxyfriedelan-3-one (17), friedelin-2,3-lactone (18),(More)
Performance analysis of the combined guard channels and Mobile assisted (M+G) handoff call admission control for two customer types is performed. A wireless cell which serves two types of calls; n-type (narrowband) and w-type (wideband) is considered. The total numbers of channels in the cell are divided into common and reserve channels. Originating(More)
BACKGROUND/AIMS In previous publications we were able to demonstrate the exposure of phosphatidylserine (PS) in the outer membrane leaflet after activation of red blood cells (RBCs) by lysophosphatidic acid (LPA), phorbol-12 myristate-13acetate (PMA), or 4-bromo-A23187 (A23187). It has been concluded that three different mechanisms are responsible for the(More)
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