This thesis presents the results of sampling experiments
investigating the properties of estimates of the
mean life of a radioactive source in the presence of a
constant unknown background.
An iterative estimation procedure is used where the
estimates are maximum liklihood estimates with asymptotic
variances. The estimation procedure was programmed...
In a search for new therapeutic agents, a series of Mannich bases
derived from the following 2-phenylindolizines were prepared: 2-phenylindolizine, 1, 2-diphenylindolizine, 3-methyl-2-phenylindolizine,
3-ethyl-2-phenylindolizine, and 1-(2-hydroxyethyl)-2-phenylindolizine.
The investigation was based on the speculation that indolizine
analogs of physiologically active indoles might be useful medicinally.
A certain group of indoles, all...