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2002

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The Study And Optimization Of The Enzyme Inhibition Bioassay 96 For The Detection Of Organophosphate And Carbamate Compounds, Stephen Christopher Twomey Jan 2002

The Study And Optimization Of The Enzyme Inhibition Bioassay 96 For The Detection Of Organophosphate And Carbamate Compounds, Stephen Christopher Twomey

UNLV Retrospective Theses & Dissertations

Faster, simpler, and more cost-effective held screening tools can increase the amount of information available concerning the location, source, and/or concentration of pollutants present in the environment. The Enzyme Inhibition Bioassay 96 (EIB 96) is one such field-screening tool; The EIB 96 is an assay that can detect the presence of organophosphate and carbamate compounds, providing scientists with valuable information to focus their future sampling efforts. The assay is based on the inhibition of the enzyme acetylcholinesterase by organophosphate and carbamate compounds. The organophosphate and carbamate compounds that were used in this project were the pesticides carbaryl, chlorpyrifos, diazinon, dichlorvos, …

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Power And Political Process: The Case Of The Ivanpah Airport, Amy Gayle Walker Jan 2002

Power And Political Process: The Case Of The Ivanpah Airport, Amy Gayle Walker

UNLV Retrospective Theses & Dissertations

This thesis examines power and political processes involved in the decision to construct a second commercial airport for Las Vegas, NV and the southern Nevada region. Using interview data and document analysis I argue that the organizational capacity of the state and its relative autonomy enabled state actors to dominate the airport's development process by defining the need and setting the agenda for the project. Additionally, state officials acquired the land for the project by circumventing established mechanisms for public participation and involvement. The findings support a state-centered approach to understanding who wields power and how in political processes. Ultimately, …

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The Effectiveness Of Reading Programs For The Intermediate Remedial Student, Hope Ann Walter Jan 2002

The Effectiveness Of Reading Programs For The Intermediate Remedial Student, Hope Ann Walter

UNLV Retrospective Theses & Dissertations

Research on remedial reading programs has a controversial history. Although extensive research has been conducted on pull-out programs, far less research has evaluated remedial reading programs within the regular classroom. This study investigated whether using the basal or a new program, Project STARS, would produce reading gains in intermediate remedial readers. It was hypothesized that Project STARS subjects would show a greater academic gain in three areas. To evaluate this hypothesis, 46 students were assessed in August and December to determine the amount of growth for each student after instruction in either the Project STARS method or the basal text. …

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From Equi-Graphical Sets To Graphical Permutations: A Problem Of Degrees In Graphs, Michael Lee Watson Jan 2002

From Equi-Graphical Sets To Graphical Permutations: A Problem Of Degrees In Graphs, Michael Lee Watson

UNLV Retrospective Theses & Dissertations

A set {a1, a2,.., an} of positive integers with a 1 < a2 < &cdots; < an is said to be equi-graphical if there exists a graph with exactly ai vertices of degree ai for each i with 1 ≤ i ≤ n. It is known that such a set is equi-graphical if and only if i=1nai is even and an≤i=1n-1 ai2 . This concept is now generalized to the following problem: Given a set S of positive integers and a permutation pi on S, determine when there exists a graph containing exactly ai vertices of degree pi(ai) for each i (1 ≤ i ≤ n). If such a graph exists, then pi is called a graphical permutation; In this paper, the graphical permutations on sets of size four are characterized and using a criterion of Fulkerson, Hoffman, and McAndrew, we show that a permutation pi of S = {a1, a2, .. , an}, where 1 ≤ a1 < a2 < &cdots; < an and such that pi(a n) = an, is graphical if and only if i=1naip ai is even and an≤i=1n-1 aipai .

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Modeling Image Databases Using Xml Schema, Min Xu Jan 2002

Modeling Image Databases Using Xml Schema, Min Xu

UNLV Retrospective Theses & Dissertations

This thesis presents a model for still images in order to support content-based querying and browsing by hierarchical tree structures and object relational graphs. We use the extensible markup language (XML) schema to illustrate and exemplify the proposed model because of its interoperability and flexibility advantages. Of primary interest is the notion of complex types and referential integrity to fully describe the physical and semantic properties of images. XQuery is used to support query processing. We further show how these complex types of XML schema can be used to overcome the shortcomings of reported image database descriptions in the literature.

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Identification Of Dynamic Properties Of Materials For The Nuclear Waste Package, Konstantin Grigoryevich Zabotkin Jan 2002

Identification Of Dynamic Properties Of Materials For The Nuclear Waste Package, Konstantin Grigoryevich Zabotkin

UNLV Retrospective Theses & Dissertations

The nuclear waste package must be designed to withstand structural deformation caused by static, thermal, and handling loads. In addition, it has to maintain its integrity in case of accidents, where it may be subjected to high loads over very short period of time. To simulate accident scenarios accurately, this thesis attempts to experimentally identify dynamic properties of materials for the nuclear waste container; The implementation of the project involves a number of steps. First, candidate materials for the nuclear waste package were identified. Literature review showed that the behavior of these materials under impact loading was not well documented. …

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The Establishment Of The Oligomeric Purity And Molecular Structure For N-Methylated Bis(8-Hydroxyquinoline) Zinc (N = 0, 2, 4, And 5), Anna Rose Falkowitz Jan 2002

The Establishment Of The Oligomeric Purity And Molecular Structure For N-Methylated Bis(8-Hydroxyquinoline) Zinc (N = 0, 2, 4, And 5), Anna Rose Falkowitz

UNLV Retrospective Theses & Dissertations

Znq2 has been studied as electroluminescent material. However, no correlation of the structure of Znq2 to resulting device properties has been established. Most reports of Znq2 as an electroluminescent material have not considered the impact of higher order molecular structures on the device properties. By utilization of size exclusion chromatography it has been determined that the dominant species of nMeq2Zn (n = 0, 4, 5) is tetrameric in crystalline form dissolved in chloroform, in thermally vapor deposited films, and in crystalline form dissolved in chloroform and DMSO. The 2Meq2Zn was determined to be solely monomeric under the previously mentioned condition. …

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Two Non-Specific Indicators Of Stress: Enamel Hypoplasia And Harris Lines, Marta Pilar Alfonso Durruty Jan 2002

Two Non-Specific Indicators Of Stress: Enamel Hypoplasia And Harris Lines, Marta Pilar Alfonso Durruty

UNLV Retrospective Theses & Dissertations

Harris lines (HL) and enamel hypoplasia (EH) are two non-specific indicators of stress, commonly used in the reconstruction of the health status in past and present populations. The aim of this study was to determine if there is a correlation between these two markers. To achieve this aim, a sample of 136 individuals from two archaeological sites (Az-71 and Az-l40) from northern Chile was analyzed. HL and EH showed no correlation in terms of presence absence at the individual level. In addition, HL and EH, by age of the individual at the time of the defect formation, showed a completely …

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Large-Scale Database Modeling: Extended Er Diagrams And Uml, Tong Feng Jan 2002

Large-Scale Database Modeling: Extended Er Diagrams And Uml, Tong Feng

UNLV Retrospective Theses & Dissertations

This thesis is concerned with the team efforts to develop a large database to track medical information. An Extended Entity Relationship diagram is developed using UML notation to describe the design of the database. Special attention was given for features of EER diagram which can not easily be represented by ER diagram.

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Self-Stabilizing Wormhole Routing, Anthony Brandon Kenitzki Jan 2002

Self-Stabilizing Wormhole Routing, Anthony Brandon Kenitzki

UNLV Retrospective Theses & Dissertations

Parallel and distributed systems are composed of individual processors that communicate with one another by exchanging messages through communication links. When the sender and the receiver of a message are not direct neighbors, intermediate processors must cooperate to ensure proper routing; Wormhole routing is most common in parallel architectures in which messages are sent in small fragments called flits. We assume that each processor will contain a single fixed-size flit buffer for each incoming link. A processor must forward the flit in a given link buffer to another processor before receiving another flit on that link. This permits messages to …

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Ecology And Growth Of Tamias Palmeri And Testing Of A Protocol To Monitor Habitat Relationships, Christopher Eric Lowrey Jan 2002

Ecology And Growth Of Tamias Palmeri And Testing Of A Protocol To Monitor Habitat Relationships, Christopher Eric Lowrey

UNLV Retrospective Theses & Dissertations

The ecology of Tamias palmeri is investigated. Presence-absence and relative abundance of T. palmeri are related to principle component scores of habitat variables using logistic regression and multiple linear regression, respectively. Relative abundance of Tamias palmeri estimated with live capture-recapture was positively correlated with shrub cover and negatively correlated with slope. Timing of emergence from dens by juveniles was earlier and weights of juveniles were greater in ravine areas as compared to upslope areas. Track plates were not correlated with trap captures. Track plate success was not correlated with habitat variables. The results of this study were used to build …

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Representation Of Special Polynomials By The Cycle Indicator, Jack Lund Schofield Jan 2002

Representation Of Special Polynomials By The Cycle Indicator, Jack Lund Schofield

UNLV Retrospective Theses & Dissertations

Certain classes of special functions have been shown to have Cycle Indicator representations as well as recurrence relations. Most remarkably, it is shown how the Cycle Indicator can be used to unify or generalize special functions. Methods of unifying special functions are elaborated on. It follows that classical special functions with simple logarithms of their generating functions can be classified in this way. Also, there are counter-examples where the Cycle Indicator doesn't represent the special functions given; This thesis represents a study of a journal article called "Cycle Indicators and Special Functions" by Leetsch C. Hsu and Peter Jau-Shyong Shiue …

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From Neglected Waste To Protected Space: An Administrative History Of Mojave National Preserve, Eric Charles Nystrom Jan 2002

From Neglected Waste To Protected Space: An Administrative History Of Mojave National Preserve, Eric Charles Nystrom

UNLV Retrospective Theses & Dissertations

The Mojave National Preserve, a unit of the National Park Service, was created in 1994 in southeastern California. Its 1.6 million acres were used historically for extractive industries such as mining and ranching, and its recent history was shaped by the land's proximity to urban Los Angeles. The preserve was the fruit of a long political battle between environmental activists and conservative opponents, and the park's final administrative form and subsequent management was indelibly altered by the compromises made during the legislative fight. The park's subsequent history, including innovative planning efforts, a 1995 attempt by opponents to eliminate the preserve's …

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Large-Scale Database Modeling: Discovering Attributes, Entities, And Relationships, Ying Yang Jan 2002

Large-Scale Database Modeling: Discovering Attributes, Entities, And Relationships, Ying Yang

UNLV Retrospective Theses & Dissertations

This thesis is concerned with the team efforts to develop a, large database to track medical information. Entity relational model approach is taken to study an extensive set of forms for structure discovery. This approach has led to thousands of attributes and hundreds of entities and relationships. A meta-database is used to manipulate this data for further design.

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Parental Perception Concerning The Use Of Peak Flow Meters In The Child With Asthma, Constance A Mcmenamin Jan 2002

Parental Perception Concerning The Use Of Peak Flow Meters In The Child With Asthma, Constance A Mcmenamin

UNLV Retrospective Theses & Dissertations

A descriptive, correlational research design was used to identify parental perceptions concerning the use of peak flow meters (PFM) in their children. The sample consisted of 20 parents who were accessed through outpatient asthma allergy clinics. The questionnaire and semi-structured interview were utilized as tools and analyzed using inferential statistics and content analysis. The revised Health Promotion Model by Dr. Nola Pender provided the theoretical framework; Content analysis provided a rich narrative as it described the perceived barriers and benefits of PFM use, prior related behavior for use or non-use of the PFM, and the nature of education that parents …

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The Sex Pistols: Punk Rock As Protest Rhetoric, Cari Elaine Byers Jan 2002

The Sex Pistols: Punk Rock As Protest Rhetoric, Cari Elaine Byers

UNLV Retrospective Theses & Dissertations

This thesis examines the punk music of the Sex Pistols as protest rhetoric. Seven of the songs on the album Never Mind the Bollocks Heres the Sex Pistols are analyzed for their content. The analysis utilizes the theory of symbolic convergence and its coinciding fantasy theme analysis along with ego-function of protest rhetoric. Through the analysis it is found that punk rock is in fact protest rhetoric as defined and explained by the theory of ego-function. The guides of this theory explain the emergence of punk music and the resulting culture. Symbolic convergence theory and fantasy theme analysis examines the …

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Steward's Southern Great Basin Research Validated Through Obsidian Artifact Sources, Lynn Ellen Haarklau Jan 2002

Steward's Southern Great Basin Research Validated Through Obsidian Artifact Sources, Lynn Ellen Haarklau

UNLV Retrospective Theses & Dissertations

Energy Dispersive X-Ray Fluorescence (EDXRF) analysis of obsidian artifacts collected from ethnohistoric sites in southern Nevada revealed patterns consistent with Julian Steward's documentation of Western Shoshone socioeconomics. Specific obsidian sources were predicted to be present in artifact samples collected from six sites in the study area. Predictions were based on Steward's documentation of Lida Vicinity, Kawich Mountains, and Beatty/Belted Mountains Shoshone subsistence travels and inter-district festival relationships. Using Steward's data, criteria were established for field identification of Shoshone winter camps. Data review and field reconnaissance resulted in identifying six camps. Samples of obsidian tool manufacturing/maintenance debris collected from the sites …

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Seismic Vulnerability Assessment Of Off-Ramp Structures Of The Las Vegas Downtown Viaduct, Mohammad Ohidul Hasan Jan 2002

Seismic Vulnerability Assessment Of Off-Ramp Structures Of The Las Vegas Downtown Viaduct, Mohammad Ohidul Hasan

UNLV Retrospective Theses & Dissertations

This thesis presents the results of analytical studies conducted on the off ramp structures of the Las Vegas downtown viaduct. In the first stage, the moment, shear and deformation capacities of the columns were determined by moment-curvature analysis. Then, the existing design of the bridge columns was compared to the requirements of the current bridge design codes. In the second stage, the moment, shear and deformation demands on the columns due to a strong earthquake were determined using the seismic provisions of the current bridge design codes. In the third stage, non-linear three dimensional finite element models of the off …

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Spatial And Temporal Patterns Of Visibility In Las Vegas, July 2000--July 2001, Arsineh Najjari Hecobian Jan 2002

Spatial And Temporal Patterns Of Visibility In Las Vegas, July 2000--July 2001, Arsineh Najjari Hecobian

UNLV Retrospective Theses & Dissertations

The Clark County Department of Air Quality Management and the Nevada Department of Motor Vehicles funded a one-year study of visibility trends in Las Vegas. The Desert Research Institute conducted this study from July 2000 to July 2001. The monitoring sites for this study were chosen to represent three areas in Las Vegas, urban, suburban and background/transport. Strong diurnal patterns were found at the urban and suburban sites. The background site had low levels of air pollution, and most of the haze at this site was due to light scattering by particles. The suburban site followed a well-defined diurnal pattern …

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The Nightingale Sings Anew: The Appropriation Of Antiquity In Virginia Woolf's "The Waves", Neta Luree Hoff Jan 2002

The Nightingale Sings Anew: The Appropriation Of Antiquity In Virginia Woolf's "The Waves", Neta Luree Hoff

UNLV Retrospective Theses & Dissertations

This thesis considers the impact of classical antiquity on the literary aesthetic of Virginia Woolf by focusing on the educational and theoretical assumptions that allowed Woolf to create her most experimental work, The Waves. Inspired by her brother Thoby Stephen and her tutor Janet Case, Woolf enjoyed a very strong and fertile relationship with the writers of antiquity, and she continued to return to them throughout her life for both conceptual and structural models. In her essays on the Greeks in particular, Woolf praises the ancients for achieving those things that she so longs to see accomplished in the works …

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Distributed Synchronizers In Network Simulator (Ns) Software, Wei Huang Jan 2002

Distributed Synchronizers In Network Simulator (Ns) Software, Wei Huang

UNLV Retrospective Theses & Dissertations

Distributed algorithms are designed for systems consisting of many interconnected processors that communicate with one another by exchanging messages through communication links. Distributed algorithms are used on a wide range of applications, from a VLSI chip to LAN, to the Internet. The advantages of distributed systems include information exchange, resource sharing, replication, parallelization, and modularization; NS (Network Simulator) is an object-oriented, discrete event driven network simulator developed at USC/ISI written in C++ and OTCL. NS is primarily useful for simulating local and wide area networks. It produces one or more text-based output files that contain detailed simulation data. The data …

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Confidence Intervals For Exposure Risk Assessment, Mark S Kirkham Jan 2002

Confidence Intervals For Exposure Risk Assessment, Mark S Kirkham

UNLV Retrospective Theses & Dissertations

The problem of estimating exposure to a pollutant involves estimation of chemical intake Q. Typically, Q has the form Q = q11q12&cdots;q 1r1/q211q22 &cdots;q2r2t where all thetaij's are unknown means of certain random variables. In assessing the risk to human health from exposure to the pollutant of concern, a confidence interval estimate of Q is needed. In the case of independent normal random variables, point estimates and certain types of interval estimates of a product of several parameters exist in the literature, but not for a ratio of products. In many situations, lot of prior knowledge is available regarding the …

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Domestic Violence Counseling Techniques: Indicators Of A Change In The Philosophy Of The Movement Against Domestic Violence, Loretta A Klem Jan 2002

Domestic Violence Counseling Techniques: Indicators Of A Change In The Philosophy Of The Movement Against Domestic Violence, Loretta A Klem

UNLV Retrospective Theses & Dissertations

The movement against domestic violence began as a grassroots effort to eliminate and to prevent the abuse of women. In the beginning, workers in the movement placed great emphasis on societal causes and solutions to the problem and great strides have been taken toward this end. However, over the last twenty years, the movement has placed greater and greater emphasis on individual counseling techniques based on a humanistic approach of individual accountability and responsibility, resulting in the placement of blame for the abuse on the victim; In group counseling sessions there is very little discussion of societal conditions, and no …

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Thermochronology And Geobarometry Of The Granite Mountains, Southeast California: Exhumation Of A Plutonic Complex During Collapse Of The Sevier Orogen, Joseph Louis Kula Jan 2002

Thermochronology And Geobarometry Of The Granite Mountains, Southeast California: Exhumation Of A Plutonic Complex During Collapse Of The Sevier Orogen, Joseph Louis Kula

UNLV Retrospective Theses & Dissertations

Thermochronologic data and geobarometry from the Granite Mountains indicate exhumation of mid-crustal plutons during Late Cretaceous extensional tectonics. U/Pb zircon and 40Ar/39Ar ornblende ages indicate intrusion, crystallization, and geologically instantaneous cooling through 500°C at ∼75 Ma. K-feldspar multi-diffusion domain modeling indicates a cooling rate gradient from SW to NE of 63, 32, and 16°C/Ma for three samples spanning a transect across the range. NE K-feldspar cooled through ∼252°C by 73 Ma while other samples remained >375°C suggesting a short lived down-to-the-east normal faulting event at ∼75 to 74 Ma. Faster cooling rates with later initial K-feldspar recording (∼71 Ma) suggest …

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Cerium And Rhodium Substitution In The Antiferromagnetic Superconductor Cerium Rhodium Indium(5), Brian Edward Light Jan 2002

Cerium And Rhodium Substitution In The Antiferromagnetic Superconductor Cerium Rhodium Indium(5), Brian Edward Light

UNLV Retrospective Theses & Dissertations

Among heavy fermion materials, a relationship between unconventional superconductivity and magnetism has been observed. The dependence of the magnetic transitions of CexLa1-xRhyIr1-y In5 with respect to temperature and magnetic field applied along the tetragonal c and a crystal axes is examined using heat capacity measurements. The magnetic phase diagram of CeRh yIrl-yIn5 for the applied transitions in the a direction shows the magnetic structure of CeRhIn5 is unchanged by Ir doping. Doping of Ir in small concentrations is shown to increase the antiferromagnetic transition temperature TN. La doping or higher concentration of Ir is shown to lower TN. This shows …

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Impacts Of Dust Suppressant Application In The Quality Of Urban Runoff In Arid Regions, Daniela Figueiredo Loreto Jan 2002

Impacts Of Dust Suppressant Application In The Quality Of Urban Runoff In Arid Regions, Daniela Figueiredo Loreto

UNLV Retrospective Theses & Dissertations

The main objectives of this thesis were to generate preliminary data on the potential impacts of major categories of dust suppressants on the quality of urban runoff and to evaluate changes in the chemical composition of soils to which suppressants were applied. Eleven individual plots were topically treated with petroleum-based products, ligninsulfonate, acrylic polymers, magnesium chloride, fiber mulch, and non-petroleum-based products and one plot did not receive treatment (control). Rainfall was simulated and the runoff emanating from each plot was collected and analyzed for several parameters. In addition, the top two inches of soil from each plot were sampled after …

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Framework For A System To Model Casino Development, Benjamin Harold Mammina Jan 2002

Framework For A System To Model Casino Development, Benjamin Harold Mammina

UNLV Retrospective Theses & Dissertations

The purpose of this study is to develop a system to model casino development without the user's need for information from architects, contractors or consultants. The target user would be a casino executive who had business experience, but minimal real estate development experience. Successful modeling would be based upon a favorable ratio of developmental costs to income projections known as Return on Investment (ROI). In this study factors used to calculate ROI for casino development projects were analyzed by examination of actual ROI calculations that were previously performed by experienced casino executives who had support from architect, contractors and consultants. …

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Demographics And Ecology Of An Isolated Population Of The Desert Pocket Mouse, Chaetodipus Penicillatus Sobrinus, In The Las Vegas Valley, Nevada, Kerstan Dawn Micone Jan 2002

Demographics And Ecology Of An Isolated Population Of The Desert Pocket Mouse, Chaetodipus Penicillatus Sobrinus, In The Las Vegas Valley, Nevada, Kerstan Dawn Micone

UNLV Retrospective Theses & Dissertations

A two-year mark recapture study was conducted on the desert pocket mouse, Chaetodipus penicillatus sobrinus on a relic population within the city of Las Vegas, NV. Demographic information and movement patterns were documented and microhabitat selection analyzed. Chaetodipus. p. sobrinus activity correlated with ambient temperatures, during colder months (Ta = 15°C) C. p. sobrinus became dormant. Sex ratio was 1:1 except during the early spring in which males were favored. Reproduction occurred between March and September each year. Male C. p. sobrinus has significantly larger home range estimates compared to females. The maximum dispersal distance was 133 meters and sex-biased …

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Parental Attitudes Towards Inclusion Of Students With Disabilities In A Private School Setting, April Ann Prado Jan 2002

Parental Attitudes Towards Inclusion Of Students With Disabilities In A Private School Setting, April Ann Prado

UNLV Retrospective Theses & Dissertations

Parental attitudes of children with and without disabilities concerning inclusion are essential factors in the implementation of inclusion programs. This study examines the attitudes of parents of children without disabilities in a private school setting, towards inclusion of children with disabilities. Forty-nine parents of children with no identified disabilities were surveyed. All of these children attended a private day school. A 20-item questionnaire was utilized to examine parents' perceptions of inclusion. The data suggest parents feel children with disabilities benefit academically and socially from inclusion in a private school setting. Results also indicate that parents of children without disabilities generally …

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Further Investigation Of Mental Tris-Quinolates Using Spectroscopy, Asanga Devinda Ranasinghe Jan 2002

Further Investigation Of Mental Tris-Quinolates Using Spectroscopy, Asanga Devinda Ranasinghe

UNLV Retrospective Theses & Dissertations

Structure of aluminum tris-8-hydroxyquinoline (Alq3) and other metal tris-quinolates (Mq3) in vapor deposited films in organic light emitting devices (OLEDs) is not well established due to the possibility of existing two geometric isomeric forms, meridianal and facial. We present a comparative analysis of 1H and 13C NMR of nMeq3M's (n = 0, 2, 4, 5) made from thermal sublimation, in a polar as well as a non-polar solvent to investigate possible evidences for the isomer distribution, stability of the metal chelate in the presence of a polar solvent and crystal structure determination for pure Inq 3 using single-crystal x-ray diffraction …

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