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We investigated the possible role of platelet membrane vesicles on hemostatic function in vivo. Platelet membrane vesicles were prepared from rabbit platelets stored for up to 6 months at -65 degrees C and transfused into thrombocytopenic rabbits. Significant reductions in microvascular bleeding times were observed up to 24 hours after transfusion, with the… (More)
When humans classify of piece of text, what features do they use? To answer this question, we develop a technique that leverages an existing community that competitively classifies text in an online fashion: the collegiate trivia circuit. Individuals receive features (clues) in a continuous stream, halt the transmission of features once they have enough… (More)
By measuring the spectrum of the backscattered light from a short-pulse laser-produced plasma in a gas jet, a direct and highly accurate measurement of the local electron density can be obtained. The measurement is based on the density-dependent spectral shift of the backscattered Raman wave.