I wished to explore ways to introduce my futuristic symbols in my work that have a relevant universality, support a primordial mysticism, and maintain a personal spirituality. This would be achieved by utilizing imagery with both contemporary and futuristic connotations. This type of imagery would require specific sculptural techniques more refined than was previously present in my work. The sculpture would consist of solitary, tensely postured, monumental figures composed according to a classically proportioned totemic model.

The purpose of this study was to investigate the personal success of using photographs as source material for woodcuts or other relief prints, and to determine how my selectivity, editing, and execution would enhance the content of these works. I proposed to create a body of woodcuts whose subject matter would be based on photographs dealing with the scenes and legends of Texas.

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Free radicals, elemental and van der Waals clusters and transition state species for bimolecular chemical reactions are investigated using anion photoelectron spectroscopy. Several low-lying electronic states of ozone have been identified via photoelectron spectroscopy of O{sub 3}{sup {minus}}. A characterization of these states is important to models for atmospheric ozone reaction kinetics. The fluoroformyloxyl radical, FCO{sub 2}, has been investigated, providing vibrational frequencies and energies for two electronic states. The technique has also been employed to make the first direct observation and characterization of the NNO{sub 2} molecule. Several electronic states are observed for this species which is believed to play a role as a reactive intermediate in the N + NO{sub 2} reaction. The experimental results for all three of these radicals are supplemented by ab initio investigations of their molecular properties. The clusters investigations include studies of elemental carbon clusters (C{sub 2}{sup {minus}} {minus} C{sub 11}{sup {minus}}), and van der Waals clusters (X{sup {minus}}(CO{sub 2}){sub n}, X = I, Br, Cl; n {le} 13 and I{sup {minus}} (N{sub 2}O){sub n=1--11}). Primarily linear clusters are observed for the smaller carbon clusters, while the spectra of the larger clusters contain contribution from cyclic anion photodetachment. Very interesting ion-solvent interactions are …

A discrete variable representation (DVR) suitable for treating the quantum scattering of a low energy electron from a hydrogen atom is presented. The benefits of DVR techniques (e.g. the removal of the requirement of calculating multidimensional potential energy matrix elements and the availability of iterative sparse matrix diagonalization/inversion algorithms) have for many years been applied successfully to studies of quantum molecular scattering. Unfortunately, the presence of a Coulomb singularity at the electrically unshielded center of a hydrogen atom requires high radial grid point densities in this region of the scattering coordinate, while the presence of finite kinetic energy in the asymptotic scattering electron also requires a sufficiently large radial grid point density at moderate distances from the nucleus. The constraints imposed by these two length scales have made application of current DVR methods to this scattering event difficult.

The isotopic production cross sections and momenta of all residues with nuclear charge (Z) greater than 39 from the reaction of 26, 40, and 50 MeV/nucleon {sup 129}Xe + Be, C, and Al were measured. The isotopic cross sections, the momentum distribution for each isotope, and the cross section as a function of nuclear charge and momentum are presented here. The new cross sections are consistent with previous measurements of the cross sections from similar reaction systems. The shape of the cross section distribution, when considered as a function of Z and velocity, was found to be qualitatively consistent with that expected from an incomplete fusion reaction mechanism. An incomplete fusion model coupled to a statistical decay model is able to reproduce many features of these reactions: the shapes of the elemental cross section distributions, the emission velocity distributions for the intermediate mass fragments, and the Z versus velocity distributions. This model gives a less satisfactory prediction of the momentum distribution for each isotope. A very different model based on the Boltzman-Nordheim-Vlasov equation and which was also coupled to a statistical decay model reproduces many features of these reactions: the shapes of the elemental cross section distributions, the intermediate mass …

The bonding and electronics of several small carbon and semiconductor clusters containing less than ten atoms are probed using negative ion threshold photodetachment (zero electron kinetic energy, or ZEKE) spectroscopy. ZEKE spectroscopy is a particularly advantageous technique for small cluster study, as it combines mass selection with good spectroscopic resolution. The ground and low-lying electronic states of small clusters in general can be accessed by detaching an electron from the ground anion state. The clusters studied using this technique and described in this work are C{sub 6}{sup {minus}}/C{sub 6}, Si{sub n}{sup {minus}}/Si{sub n} (n = 2, 3, 4), Ge{sub 2}{sup {minus}}/Ge{sub 2}, In{sub 2}P{sup {minus}}/In{sub 2}P,InP{sub 2}{sup {minus}}/InP{sup 2}, and Ga{sub 2}As{sup {minus}}. The total photodetachment cross sections of several other small carbon clusters and the ZEKE spectrum of the I{sup {minus}}{center_dot}CH{sub 3}I S{sub N}2 reaction complex are also presented to illustrate the versatility of the experimental apparatus. Clusters with so few atoms do not exhibit bulk properties. However, each specie exhibits bonding properties that relate to the type of bonding found in the bulk. C{sub 6}, as has been predicted, exhibits a linear cumulenic structure, where double bonds connect all six carbon atoms. This double bonding reflects how important …

The Differential Microwave Radiometer (DMR) aboard the COBE satellite has detected anisotropies in the cosmic microwave background (CMB) radiation. A two-point correlation function analysis which helped lead to this discovery is presented in detail. The results of a correlation function analysis of the two year DMR data set is presented. The first and second year data sets are compared and found to be reasonably consistent. The positive correlation for separation angles less than {approximately}20{degree} is robust to Galactic latitude cuts and is very stable from year to year. The Galactic latitude cut independence of the correlation function is strong evidence that the signal is not Galactic in origin. The statistical significance of the structure seen in the correlation function of the first, second and two year maps is respectively > 9{sigma}, > 10{sigma} and > 18{sigma} above the noise. The noise in the DMR sky maps is correlated at a low level. The structure of the pixel temperature covariance matrix is given. The noise covariance matrix of a DMR sky map is diagonal to an accuracy of better than 1%. For a given sky pixel, the dominant noise covariance occurs with the ring of pixels at an angular separation of …

The Department of Energy`s program for disposing of nuclear High-Level Waste (HLW) and transuranic (TRU) waste has been impeded by overwhelming political opposition fueled by public perceptions of actual risk. Analysis of these perceptions shows them to be deeply rooted in images of fear and dread that have been present since the discovery of radioactivity. The development and use of nuclear weapons linked these images to reality and the mishandling of radioactive waste from the nations military weapons facilities has contributed toward creating a state of distrust that cannot be erased quickly or easily. In addition, the analysis indicates that even the highly educated technical community is not well informed on the latest technology involved with nuclear HLW and TRU waste disposal. It is not surprising then, that the general public feels uncomfortable with DOE`s management plans for with nuclear HLW and TRU waste disposal. Postponing the permanent geologic repository and use of Monitored Retrievable Storage (MRS) would provide the time necessary for difficult social and political issues to be resolved. It would also allow time for the public to become better educated if DOE chooses to become proactive.

The zone refining process was applied to Pu metal containing known amounts of impurities. Rod specimens of plutonium metal were melted into and contained in tantalum boats, each of which was passed horizontally through a three-turn, high-frequency coil in such a manner as to cause a narrow molten zone to pass through the Pu metal rod 10 times. The impurity elements Co, Cr, Fe, Ni, Np, U were found to move in the same direction as the molten zone as predicted by binary phase diagrams. The elements Al, Am, and Ga moved in the opposite direction of the molten zone as predicted by binary phase diagrams. As the impurity alloy was zone refined, {delta}-phase plutonium metal crystals were produced. The first few zone refining passes were more effective than each later pass because an oxide layer formed on the rod surface. There was no clear evidence of better impurity movement at the slower zone refining speed. Also, constant or variable coil power appeared to have no effect on impurity movement during a single run (10 passes). This experiment was the first step to developing a zone refining process for plutonium metal.

In the United States we generate greater than 500 million tons of toxic waste per year which pose a threat to human health and the environment. Some of the most toxic of these wastes are those that are radioactively contaminated. This thesis explores the need for permanent disposal facilities to isolate radioactive waste materials that are being stored temporarily, and therefore potentially unsafely, at generating facilities. Because of current controversies involving the interstate transfer of toxic waste, more states are restricting the flow of wastes into - their borders with the resultant outcome of requiring the management (storage and disposal) of wastes generated solely within a state`s boundary to remain there. The purpose of this project is to study nuclear waste storage issues and public perceptions of this important matter. Temporary storage at generating facilities is a cause for safety concerns and underscores, the need for the opening of permanent disposal sites. Political controversies and public concern are forcing states to look within their own borders to find solutions to this difficult problem. Permanent disposal or retrievable storage for radioactive waste may become a necessity in the near future in Colorado. Suitable areas that could support - a nuclear storage/disposal …

I has been almost four years since this change of perception from "belief" to "disbelief." Looking back I can say this shift can be characterized as "belief" standing for an idea of art which requires it to represent a singular closed reading, while "disbelief" stands for a realization of an art which corresponds more with the complexities of social interaction and produces work with an array of possible readings. Or more simply stated, "belief" requires the desire to destabilize meaning. Or even more simply stated, "belief" equals "truth," while "disbelief" equals the absence of "truth."

The goal of the work was to infect traditional ideas of beauty and authority with late Twentieth-Century culture and to thereby create an artifact that would reflect the multiplicity of our culture. My work, to date, has dealt with single works of a consistent media combining two and three-dimensional elements. I proposed to add to the complexity of my stated goal through a more varied use of medium; audio, photography, lighting, paint on canvas, reprocessed found objects as well as materials with which I presently work. Some of the work would extend off the wall or ceiling or floor into what might be called the "viewer's space." The end result would be a group of works which created a narrative and would culminate into a single work to be installed in a space as yet undetermined. Site possibilities I considered were my studio, the university gallery, and the critique room in Oak Street Hall.

This study examines the relationship between sonnet form and musical form in Benjamin Britten's sonnet cycles with a view toward identifying the musico-poetic form how the musical form interprets the poetry. Several issues come to the fore: 1) articulation of the large-scale divisions of the poetic form in the music; 2) potential of the musical setting to make connections between lines of the text ; 3) potential of the musical setting to follow or imitate the thought processes of the poem; and 4) placement of the departure and return.

Conductors are oftern associated with a specific body of work in their repertoy. Gustav Mahler's conducting repertory contained some major Wagnerian works, including Tristan und Isolde. Mahler's first performance of Tristan took place during his tenure at the Stadttheater in Hamburg (1891-1897). It remained an integral part of his repertory through his tenure at the Vienna Hofoper (1897-1907), and was one of eight works he conducted at New York's Metropolitan Opera (1907-1910). This study includes a brief history of Mahler's education and a description of his conducting style characteristics. It traces the reception of Mahler's production of Tristan from Hamburg to New York, and focuses on his performances at the Hofoper and at the Metropolitan Opera. Sources used to determine performance changes he made include letters, personal reminiscences of friends and critics, and newspaper and journal reviews.

A body of works titled 'capriccio' have existed for over four hundred years. Most of these works are characterized by a composers abandonment of expected stylistic norms. Guided only by the fanciful whim of the composer, a capriccio exhibits extreme contrasts in the various parameters of a musical composition including melody, harmony, counterpoint, mood and texture. The composition embedded in these compositional parameters as its point of departure and development.

An integrated exposure and carcinogenic risk assessment model for organic contamination in soil, SoilRisk, was developed and used for evaluating the risk implications of both site-specific and uniform-concentration approaches to setting soil remediation goals at hazardous-waste-contaminated sites. SoilRisk was applied to evaluate the uncertainty in the risk estimate due to uncertainty in site conditions at a representative site. It was also used to evaluate the variability in risk across a region of sites that can occur due to differences in site characteristics that affect contaminant transport and fate when a uniform concentration approach is used. In evaluating regional variability, Ross County, Ohio and the State of Ohio were used as examples. All analyses performed considered four contaminants (benzene, trichloroethylene (TCE), chlordane, and benzo[a]pyrene (BAP)) and four exposure scenarios (commercial, recreational and on- and offsite residential). Regardless of whether uncertainty in risk at a single site or variability in risk across sites was evaluated, the exposure scenario specified and the properties of the target contaminant had more influence than variance in site parameters on the resulting variance and magnitude of the risk estimate. In general, variance in risk was found to be greater for the relatively less degradable and more mobile …

Many granular materials, including sedimentary rocks and soils, contain clay particles in the pores, grain contacts, or matrix. The amount and location of the clays and fluids can influence the mechanical and hydraulic properties of the granular material. This research investigated the mechanical effects of clay at grain-to-grain contacts in the presence of different fluids. Laboratory seismic wave propagation tests were conducted at ultrasonic frequencies using spherical glass beads coated with Montmorillonite clay (SWy-1) onto which different fluids were adsorbed. For all bead samples, seismic velocity increased and attenuation decreased as the contact stiffnesses increased with increasing stress demonstrating that grain contacts control seismic transmission in poorly consolidated and unconsolidated granular material. Coating the beads with clay added stiffness and introduced viscosity to the mechanical contact properties that increased the velocity and attenuation of the propagating seismic wave. Clay-fluid interactions were studied by allowing the clay coating to absorb water, ethyl alcohol, and hexadecane. Increasing water amounts initially increased seismic attenuation due to clay swelling at the contacts. Attenuation decreased for higher water amounts where the clay exceeded the plastic limit and was forced from the contact areas into the surrounding open pore space during sample consolidation. This work investigates …

Vitrification has been declared by the Environmental Protection Agency (USEPA) as the Best Demonstrated Available Technology (BDAT) for the permanent disposal of high-level radioactive waste. Savannah River Site currently uses a sodium tetraphenylborate (NaTPB) precipitation process to remove Cs-137 from a wastewater solution created from the processing of nuclear fuel. This process has several disadvantages such as the formation of a benzene waste stream. It has been proposed to replace the precipitation process with an ion exchange process using a new resorcinol-formaldehyde resin developed by Savannah River Technical Center (SRTC). Preliminary tests, however, showed that problems such as crust formation and a reduced final glass wasteform exist when the resin is placed in the melter environment. The newly developed stirred melter could be capable of overcoming these problems. This research explored the operational feasibility of using the stirred tank melter to vitrify an organic ion exchange resin. Preliminary tests included crucible studies to determine the reducing potential of the resin and the extent of oxygen consuming reactions and oxygen transfer tests to approximate the extent of oxygen transfer into the molten glass using an impeller and a combination of the impeller and an external oxygen transfer system. These preliminary studies …

This study investigated significant influences including Hispanicness, traditionalism and demographic characteristics on Hispanic women's purchase behavior when selecting work and social activity apparel. A sample of 114 Hispanic women from a Hispanic professional organization or businesses in the Dallas and El Paso, Texas areas. Surveys were collected by mail or administered to subjects. Analyses included frequencies, percentages, t-tests, and Pearson's product-moment correlations. For both situations, mean scores indicated the most influential information sources were: clothing displays, friends, and female family members, while the most used acquisition sources were: department and specialty stores. In both situations, these women had very feminine appearance attributes and very feminine and fashionable clothing style. Hispanicness, traditionalism, and demographic characteristics made some difference when selecting work and social activity apparel.

The thesis begins with an introduction, followed by six short stories. The stories that follow span three or four regions of the American landscape and three or four decades of the twentieth century. What drives each story is the isolation of both narrator and main character (when these are not the same) from the world of the story. In each story, there is either a sense of wanting to belong or an urge to escape, or both. The paradox--also the writer's paradox--is that if one belongs, one has no need to escape; if one escapes, one can never belong.

This study analyzes activist behavior of Supreme Court justices in 132 decisions which struck down congressional statutes as unconstitutional in 1789-1990. Analysis of the justices' activist rates and liberalism scores demonstrate that these votes are ideologically based. Integrated models containing personal attribute and case factor variables are constructed to explore the votes as activist behavior. The same models are also tested with a new dependent variable constructed to measure the nullification votes as liberal votes. The models which explain the votes as ideological responses better explain the votes than the models which explain the votes as activism or restraint. The attribute variables offer better explanation in the late 20th century models and the case factors offer better explanation in the early period models.

This study examined to what extent the biological sex of the nurse-physician interactants affects the interpersonal communication satisfaction experienced by the nurse. Hypotheses One and Two predicted that communication satisfaction would differ significantly across various combinations of sex of nurse and sex of physician dyads. Hypothesis Three predicted that male nurses would experience higher levels of communication satisfaction than would female nurses. Interpersonal communication satisfaction was operationalized by two self-report instruments. The sample included 153 male and female nurses. Results indicated that same-sex interactions were more satisfying for female nurses, while mixed-sex interactions were more satisfying for male nurses. Nurses reported greater communication satisfaction when interacting with female physicians. Hypothesis three was not supported.