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A radio-controlled model boat obtained surface samples of plankton and of air over water; it was especially useful in obtaining samples of neuston in water less than 15 centimeters in depth. It can be used to sample highly rcdioactive areas. The boat functions best in calm water or where surface currents are less than 3 knots.
Methods are described for the preparation of [8,9-2H2]apomorphine and [1,3,8,9-2H4]apomorphine based on reaction of apomorphine in trifluoroacetic acid-d. The mass spectral properties of these compounds and of the O,O-bis(heptafluorobutyrate) ester and the O,O-bis(tert-butyldimethylsilyl) ethers of apomorphine, using electron impact and chemical ionization,… (More)
AIM To report and describe the technique of robot assisted prostatectomy (RAP) and retrieval of vesical stones. METHODS We describe the technique of RAP and retrieval of vesical stones under endoscopic guidance. The relevant published English literature (Pub Med™) was also searched for giant enlargement of prostate glands in order to ascertain their… (More)