[en] Radionuclide transport by groundwater flow is an important pathway in the assessment of the environmental impact of radioactive waste disposal to the biosphere. A numerical model was developed to simulate radionuclide transport by groundwater flow and predict the radionuclide discharge rate to the biosphere. A sensitivity analysis methodology was developed to address the sensitivity of the input parameters of the radionuclide transport equation to the specified response of interest

[en] In a magnetic field of order 10¹² gauss, characteristic of neutron star models for pulsars, the atomic, molecular and crystalline forms of matter are radically different than those encountered in the laboratory. Because of the very strong tendency of electrons to move along magnetic field lines, atoms will have greatly increased binding energies and cylindrical, rather than spherical, shapes. Molecules take the form of linear chains of atoms with the chains parallel to the magnetic field lines. A strong chain-chain interaction arises from the large atomic quadrupole moments; an approximately body-centered, cubic crystal lattice is formed from parallel chains. The physical properties of these atoms, molecules, and crystals are investigated in this thesis. It is found that an iron lattice will be bound by about 10 keV per atom and have a density about 10⁴ gm/cc. This kind of crystal may exist on neutron star surfaces and therefore may have a significant influence on the pulsar magnetospheric structure

[en] Monogalactosyldiacylglycerol was produced when membranes isolated from the cyanobacterium, Anabaena variabilis, and washed free of soluble endogenous constituents, were incubated with (¹⁴C)acyl-acyl carrier protein. This enzymatic synthesis of monogalactosyldiacylglycerol localized in the membranes was not dependent on any added cofactors, such as ATP, coenzyme A, and dithiothreitol. Palmitoyl-, stearoyl-, and oleoyl-acyl carrier proteins were approximately equally active as substrates with Km of 0.37, 0.36, and 0.23 μM, respectively. The (¹⁴C)acyl group was exclusively transferred to the sn-1 hydroxyl of the glycerol backbone of monogalactosyldiacylglycerol as demonstrated by hydrolysis of all incorporated acyl groups by the lipase from Rhizopus arrhizus delamar. Using a double labelled (¹⁴C)acyl-(¹⁴C)acyl carrier protein, this enzyme catalyzed the direct transfer of the acyl group from acyl-acyl carrier protein to an endogenous lysomonogalactosyldiacylglycerol to form monogalactosyldiacylglycerol. The transfer reaction mechanism was also confirmed by the increased activity with the addition of the lysomonogalactosyldiacylglycerol suspension. A specific galactolipid acyl hydrolase activity was released into the soluble protein fraction when the membranes of Anabaena variabilis were treated with 2% Triton X-100. The positional specificity of this acyl hydrolase was demonstrated to be similar to that of Rhizopus lipase, i.e. only the acyl group at the sn-1 position was hydrolyzed. The acyl hydrolase which was also localized in the membrane fraction of Anabaena variabilis was presumably responsible for producing endogenous lysomonogalactosyldiacylglycerol used by the acyltransferase

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[en] Contributions to the progress of understanding of laser-plasma interactions are summarized

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[en] Neutrino oscillation experiments at medium energy have been considered, e.g., BNL E704 and P764 using the AGS at 800 MeV, and many proposals at LAMPF. One reason for this is that since existing neutrino detectors are at a fixed L, one should go to lower neutrino energies to gain increased geometric sensitivity to delta m². Another reason for doing oscillations at lower energy is that the available proton current can be very high, e.g., LAMPF produces 1 mA at 800 MeV

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