Lamellar x-ray diffraction was studied from thin films of L-α-1,2-dipalmitoyl lecithin (DPL) and a 1:1 mixture (BrDPL) of L-α-l-palmitoyl-2-(9- bromopaimitoyl) lecithin and its 10-bromo analog. The specimens had high lamellar order, with an upper bound on the mosaicity of 6 mrad (0.4°) for DPL and BrDPL. With various water contents,...
The observed and calculated structural parameters of three systems
of phosphatidylcholine bilayers in fully-hydrated multilamellar
vesicles (MLVs) were determined using x-ray diffraction techniques.
The analysis used the x-ray reflections from the low-, intermediateand
wide-angle regions of the diffraction patterns in the subgel, gel,
rippled and fluid phases to determine the...
This thesis describes a Mossbauer effect and electron
paramagnetic resonance study of iron (III) tetraphenylporphyrinatobenzenethiolate
benzene thiol, an analog compound
for bacterial cytochrome P-450. The compound is unusual in
that it provides a model for the two ferric reaction states
of cytochrome P-450. The iron in the model compound exhibits...
The adsorption of uranium ions from seawater could be of importance
as reserves of uranium are depleted. The structure, chemical
state, and concentration of uranium in seawater have been previously
determined. Uranium exists as a charged ion, UO₂(CO₃)₃⁴⁻. The concentration
in seawater is 3.3 parts per billion.
Previous studies with...
Red Light Ladies presents a perspective on prostitution in North America, within the context of the western mining frontier. A biographical profile of the frontier
prostitutor is presented, along with an archaeological model of settlement patterns and material culture. Settlement patterns and demographic changes in the prostitutor
population are hypothetically...
The study examines the acculturation and environmental adaptation of nineteenth century Chinese miners in a portion of southwestern Oregon. The problem concerns the
varieties of culture change which resulted when this ethnic group found itself required to subsist in a new social and physical environment. The study focuses on the...
The purpose of this study was to test a proposed procedure for
providing seniors in small high schools of Oregon with information
in regard to the private colleges and universities of the state. It included
the development of an audio-visual technique and its trial on
a sample group.
Scope and...
Hyperspectral images consist of intensity measurements associated with a large number of EM wavelengths per pixel. When a pixel contains a single material, the measurements of the pixel match the spectral signature of the material. When multiple materials are present in a single pixel, spectral mixing occurs, and signatures of...