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A method is described for the determination of urea in plasma and urine. The effects of variations in the experimental conditions are examined and the results of recovery experiments and other tests of precision and accuracy are reported. In comparison with other methods in current use, this method has distinct advantages in sensitivity, simplicity, and(More)
When the posture was changed from horizontal to vertical, or the reverse, the alteration in plasma volume and in the levels of haematocrit, haemoglobin, and plasma protein was much greater in patients with oedema or low plasma protein or albumin concentrations ("the pathological group") than in patients without these abnormalities ("the control group").(More)
any emerging information appliances assist motorists as they travel on today's congested roads: I Route planners give detailed instructions on the sequence of roads to follow to reach a particular destination. The information may be presented via a display mounted on the dashboard or as audio using the speakers attached to the vehicle's entertainment(More)
From 1997 through 2003, the UN Oil for Food Program allowed Iraq to export oil for humanitarian supplies. We hypothesize that Iraq deliberately set the price of its oil below market prices to solicit bribes from oil buyers. By comparing the price gap between Iraqi oil and its close substitutes during the Program to the gap prior to the Program, we find(More)
A specific method of estimating pyruvate, depending upon the oxidation of reduced nicotinamide-adenine dinucleotide in the presence of lactic dehydrogenase, has been modified to improve its accuracy. The precision of the modification, measured by duplicate analysis, was represented by a standard deviation of 0.03 mg./100 ml. The mean recovery of added(More)