Absolute charge collection efficiencies of undamaged and radiation damaged MOS capacitors have been measured as a function of applied collection bias and related to device damage. The measurements were performed on devices irradiated to various particle fluences, under different bias conditions, and with both lightly and heavily damaging particles. The measurements allow characterization and separation of damage effects due to flatband voltage shifts and atomic displacements in the substrate, and are sensitive indicators of both kinds of damage. Using this technique in conjunction with a microbeam, possibilities exist for investigating damage at a highly localized level, ion per ion, as the damage occurs. This technique is not limited to MOS devices.

Serum acid phosphatase was measured in 155 people of whom 45 had prostate cancer and 110 were either normal or had other conditions. The assay did not discover early cases of prostate cancer but did reveal accurately patients with metastatic prostate cancer. The assay appears to be valuable for the purposes of staging the disease but as a method of discovering patients with early forms of prostate cancer.

The search for electron affinic compounds that exhibit the properties needed for a clinically useful hypoxic cell radiosensitizer has led to the setting up of clinical trials with misonidazole, which is a 2-nitroimidazole. Recently, MTDQ a new drug of novel design, a dihydroquinoline (6,6-methylene-bis-2,2,4-trimethyl-1,2-dihydroquinoline)has been synthesized and suggested as a radiosensitizer. The radiosensitizing and cytotoxic properties of misonidazole are compared with MTDQ and a second 2-nitroimadazole Ro-07-0741, which has warranted attention as a possible alternative to misonidazole for clinical use.

The angular distribution of several of the proton groups from the ${\mathrm{Na}}^{23}(d, p){\mathrm{Na}}^{24}$ reaction was studied using 3-Mev deuterons. The results were compared with the Butler theory of the angular distributions from ($d, p$) reactions.A value of ${l}_{n}=2$ is assigned to the orbital angular momentum of the neutron captured in the formation of the ground state of ${\mathrm{Na}}^{24}$ from ${\mathrm{Na}}^{23}$. Since the available evidence indicates that the parity of the ground state of ${\mathrm{Na}}^{24}$ is even, a value of ${l}_{n}=2$ implies that the ground state of ${\mathrm{Na}}^{23}$ also has even parity.The two proton groups resulting when ${\mathrm{Na}}^{24}$ is produced in the 0.472-Mev and 0.564-Mev excited states could not be resolved. The angular distribution of the sum of these two groups could not be uniquely interpreted. The author favors the interpretation that one of these levels is formed by capture of a neutron with ${l}_{n}=0$ and the other by capture of a neutron with ${l}_{n}=2$. Then both levels would have even parity, the possible spin values being 1 or 2 for one of the levels and 1, 2, 3, or 4 for the other level.The data on the 1.341-Mev level in ${\mathrm{Na}}^{24}$ indicate that it is formed by capture of a neutron with ${l}_{n}=0$. Hence this level has even parity and a spin of either 1 or 2.