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Tectonic Denudation Of Mesozoic Contractile Structures By A Low-Angle Normal Fault And Associated Faults, Southern White Pine Range, Nevada, Holly Langrock

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Blackrock Canyon area in the southern White Pine Range, Nevada mostly consists of the highly extended upper plate of a low-angle normal fault, the Blackrock fault. The post-31.3 Ma Blackrock fault places upper Paleozoic sedimentary rocks and overlying Tertiary volcanic rocks of the Garret Ranch Group in its hangingwall against a 50 degrees E-dipping homocline of Cambrian through Mississippian rocks in its footwall. The 15 to 30 degrees W-dipping Blackrock fault is non-planar and consists of two fault segments and a pronounced corrugation, the Bull Spring corrugation. These geometric irregularities suggest the slip direction on the fault was east-southeast …

Mafic Volcanism In The Colorado Plateau: Basin And Range Transition Zone, Hurricane, Utah, Alexander Sanchez

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Hurricane volcanic field (HVF) is a small-volume (0.48 km³) mafic volcanic field in the Colorado Plateau/Basin & Range Transition Zone located in the eastern part of the St. George basin in southwestern Utah. Strombolian-Hawaiian style eruptions produced thin (10 m) a'a lava flows and cinder (scoria) cones composed of vesicular basalt, bombs and agglutinate. Radiometric dating and geologic relationships demonstrate that the HVF formed over a period of at least 100,000 years. In the upper crust, magma probably rose along joints in sedimentary rocks because chains of volcanic vents follow joint orientation maxima in sedimentary rocks.

Three …

Geology And Geochemistry Of Tertiary Volcanic Rocks In The Northern Reveille And Southern Pancake Ranges, Nye County, Nevada, Kelly Brian Rash

UNLV Theses, Dissertations, Professional Papers, and Capstones

The northern Reveille and southern Pancake Ranges, located in the south-central Great Basin, experienced a prolonged history of Tertiary volcanism. Volcanic activity in this area began with the eruption of large-volumes of ash-flow tuffs from calderas of the central Nevada caldera complex. The Reveille Range and the southernmost portion of the Pancake Range are the site of two calderas that are the sources for the tuff of Goblin Knobs and tuff of northern Reveille Range. The tuff of Goblin Knobs (70.4-75.3 wt.% SiO₂) erupted from the caldera of Goblin Knobs (25.6 Ma) and is the thickest (~1700 m) …

Geochemical Evolution Of A Mid-Miocene Synextensional Volcanic Complex: The Dolan Springs Volcanic Field, Northwestern Arizona, Scott Michael Mcdaniel

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Dolan Springs volcanic field (DSV), of northwestern Arizona, is dominated by andesite and basaltic-andesite flows and breccias, with minor amounts of basalt, rhyolite, and ash-flow tuff. Geochemistry is used here as a tool to evaluate the roles and contributions of the lithospheric and asthenospheric mantles to magmatism related to Miocene extension in the Colorado River extension corridor (CREC). The majority of synextensional volcanic rocks in the DSV are geochemically similar to regional trends, but rare tholeiitic basalts erupted near the end of extension. The tholeiites have trace element signatures similar to ocean island basalt (OIB), but have isotopic values …

Management Of Pesticide Related Soil Contamination In Tulare County, California: Remediation And Prevention Options, Nickolas Keoni Akana

UNLV Theses, Dissertations, Professional Papers, and Capstones

The case study chosen for research is the Remedial Action Plan (RAP) summary report of Remedial Investigations of the Harmon Field contaminated site located near the town of Pixley, in Tulare County, California. "These reports were prepared in accordance with a directive from the California Environmental Protection Agency (Cal-EPA), formerly the California Department of Health Services (DHS). (Canonie, 1996).

Harmon Field is a hundred acre field located at 1494 South Airport Road. The airfield has been in full operation since 1952. The uses of the airport are all agriculturally related. The primary use is for crop duster operations. (Canonie 1996). …

Housing Conditions & Demographical Survey: Housing Rehabilitation For The City Of North Las Vegas, Lisa M. Morris

UNLV Theses, Dissertations, Professional Papers, and Capstones

The basis of this research, is to evaluate the North Las Vegas area in order to develop knowledge of what areas are in critical need of rehabilitation. Improperly maintained affordable housing is one of the largest sources of wasted resources. The research was obtained through a windshield survey process, which included approximately 12,000 homes in the North Las Vegas area to determine their conditions. The findings of the windshield survey was used to correlate the results of the housing conditions, with demographics such as: Population, Age Distribution, Racial Distribution, Median Income, Poverty Levels, Age of Homes and Female Head of …

A Petrographic And Fluid Inclusion Study Of The Purple Vein And Post/Betze Orebodies, Carlin, Nevada, Jan B. Lamb

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Purple Vein (Meikle Mine) and Post/Betze orebodies, two Carlin-type, gold deposits, display important differences in size, alteration, silicification, pyritization, and gold grade. A core hole was examined from each deposit to gather petrographic and microthermometric data to determine the mineral paragenesis, to determine fluid pressure, temperature, and composition to compare of the two orebodies, and to determine depths of formation.

The parageneses determined were divided into three stages. (1) The Early Mineralization Stage contains quartz, pyrobitumen, barite, sphalerite, sulfosalts, quartz, and pyrite in the Purple Vein deposit and consists of calcite in the Post/Betze deposit. High salinity basinal brines, …

An Understanding Of Factors Controlling Isotopic Ratios Of Wine As A Potential Surrogate Of Past Precipitation, Eric Alan Caldwell

UNLV Theses, Dissertations, Professional Papers, and Capstones

Precipitation, vapor water, ground water, soil water, grape berry and grape leaf water, grape must, and vintage wines were collected from northern California for stable isotopic analysis. An understanding of factors controlling isotopic ratios of wine allows evaluation of wine as a surrogate of past precipitation. Stable isotopic compositions of grape berry waters collected at Charles Krug Winery in Napa Valley. CA range from -31 to -17 per mil in 8D and +7.2 to +15.3 per mil in 8180, and plot along a transpiration line of slope 2. 7. Grape leaf waters range from -25 to +5 per mil in …

The Study Of Yucca Mountain For A Possible Nuclear Storage Facility Science Vs. Politics, Anna Leske

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this paper is to determine whether scientific or political methods were used by the of the United States Congress in the study of the nuclear waste storage facility in Yucca Mountain, Nevada. The history nuclear power and the history of the Johnston compromise that lead to the elimination of Texas and Washington States as possible sites for the repository is explained. A review of the conflicts between Nevada politicians and the U.S. Congress over the designation of Yucca Mountain as the sole study for a permanent storage site of the nation's high-level nuclear waste is addressed along …

Limiting Growth In Las Vegas - A Necessary Growth Strategy For The Twenty-First Century, Cheryl Ann Frassa

UNLV Theses, Dissertations, Professional Papers, and Capstones

Land development in the Las Vegas Valley continues at an unprecedented rate and future growth will no doubt be strongly advocated. Yet, water resources in this desert area are finite, and in the near future, supply will fall short of demand. Plans are underway to supplement the existing supply, and proposals to secure additional sources are under investigation. But there are no guarantees these ambitious endeavors will materialize. In light of the pending water crisis, the pervasive "growth at all cost" policies now dominant in the valley must be abandoned and more realistic land-use policies developed; ones based on the …

Updating The Colorado River Compact, Jeffrey A. Freer

UNLV Theses, Dissertations, Professional Papers, and Capstones

Water is essential to life in the arid environment of the western United States. For centuries, humans have used the Colorado River to fulfill their needs and until the past 100 years, the use of the river was sustainable. Over the last 100 years, the Colorado River has been dammed and diverted to "reclaim" the arid west for man's use. In 1946, a Department of the Interior report stated that "Tomorrow the Colorado will be utilized to the very last drop. Its water will convert thousands of additional acres of sagebrush desert to flourishing farms and beautiful homes for servicemen, …

A Self-Stabilizing Distributed Maximum Flow Algorithm, Yan Zhou

UNLV Retrospective Theses & Dissertations

This thesis presents a self-stabilizing distributed maximum flow algorithm for a network G = (V, E), where V is a set of nodes in the network and E is a set of edges in the network. The algorithm has two phases: reset phase and preflow-push phase. Fault-tolerance is achieved by using a self-stabilizing paradigm that uses non-masking fault-tolerance embedded repetitions within the algorithm. Two techniques are used in the algorithm, Counter flushing is used to synchronize the network; both local checking and local correction are used to compute the maximum flow of the network. The algorithm handles catastrophic faults by …

Computer Generation And Rendering Of Terrain, Frederick John Haab

UNLV Retrospective Theses & Dissertations

Computer Generation and Rendering of Terrain explores different techniques that are currently used in computer science to generate terrain data. Also explored are some techniques for rendering the terrain on a computer display. A new three step technique for the generation of terrain that is based on geometric characteristics is presented, as is a hybrid rendering technique.

Family Court: An Analysis Of A Unified Judicial System To Serve The Administration Of Justice For All Juvenile And Family Matters, Lori Ann Higdon

UNLV Retrospective Theses & Dissertations

Several states have created family courts by coordinating juvenile and family law matters within one court in an effort to provide efficient and timely service delivery to children and families. This thesis will evaluate this court model by providing a literary review, including problems facing children and families. Ethical concerns regarding family preservation, the quality of justice, parent's rights vs states obligations, punishment vs rehabilitation and the social worker vs cop role conflict will be included. A survey which was conducted as a part of this thesis together with a previous survey provides current evidence supporting the premise that the …

A Review Of Computer Pedagogy In Selected Western Region Architecture Schools And Its Relevancy To Entry Level Employment In Las Vegas Firms, Shelly Ann Hayden

UNLV Retrospective Theses & Dissertations

This study investigated the integration of computer education into architectural curricula in the Southwestern U.S. and the extent to which this education affects the ability of graduates to obtain entry-level positions in architectural firms in the Las Vegas, Nevada area. The study had three goals: (1) to provide university administration, faculty, and students with an understanding of how electronic technology and software can benefit architectural education; (2) to investigate the Southwest architectural computer curriculum structuring and offer any possible suggestions for change; and (3) to research local Las Vegas architectural firms and improve the chances for graduates to become more …

Fault-Tolerance Embedding Of Rings And Arrays In Star And Pancake Graphs, Ramesh Reddy Gajjala

UNLV Retrospective Theses & Dissertations

The star and pancake graphs are useful interconnection networks for connecting processors in a parallel and distributed computing environment. The star network has been widely studied and is shown to possess attactive features like sublogarithmic diameter, node and edge symmetry and high resilience. The star/pancake interconnection graphs, {dollar}S\sb{n}/P\sb{n}{dollar} of dimension n have n! nodes connected by {dollar}{(n-1).n!\over2}{dollar} edges. Due to their large number of nodes and interconnections, they are prone to failure of one or more nodes/edges; In this thesis, we present methods to embed Hamiltonian paths (H-path) and Hamiltonian cycles (H-cycle) in a star graph {dollar}S\sb{n}{dollar} and pancake graph …

Experimental Study Of Heat Transfer And Fluid Flow In Unsaturated Porous Media, Abdullah Abdullatif Izzeldin

UNLV Retrospective Theses & Dissertations

A laboratory experiment was conducted to investigate thermal and fluid flow behavior in an unsaturated porous medium. The experiment consisted of a bed of homogeneous glass beads packed uniformly in a Lexan rectangular box. A cylindrical heat source was located horizontally in the middle region of the bed and the bed was heated to steady state conditions. Water was then introduced uniformly through square nozzles located over the fill material for short periods of time. The box was fitted with a screen at the bottom to keep the porous material intact while allowing the water to flow out. Below the …

The Accuracy Of The Denver Ii Screening Test For Children Under Two Years Of Age, Thomas Alan Kapusnak

UNLV Retrospective Theses & Dissertations

This archival study examined the accuracy of the Denver II Screening Test for children under two years of age. Accuracy was determined by comparing results from the records of eighty-two children on the Denver II Screening Test, to standards established by the American Psychological Association. These standards were: Specificity, sensitivity, and positive predictive value. Concurrent validity was established through the use of the Bayley Scales of Infant Development. The results indicated that the Denver II Screening Test was accurate for children under two years of age, especially when using the more sensitive approach in detecting children by combining questionable results …

Travel Demand Modeling For Developing Countries, Satyakala Jarugumilli

UNLV Retrospective Theses & Dissertations

The transportation planning process or travel demand forecasting process which is most commonly used at present, called the Urban Transportation Planning Process (UTPP), has its origins in studies performed about three decades ago in urban areas in the United States. This conventional planning process was designed primarily for the western/developed world where affordability and accessibility to a personal automobile is a common feature; The UTPP based models used in forecasting future travel demand rely heavily on socio-economic variables that are associated with an individual's propensity to travel. The socio-economic environments in the developing and the under-developed world are different from …

Experimental Determination Of Pressures And Velocities In Plant Xylem, Anand Kanjerla

UNLV Retrospective Theses & Dissertations

This study reports on the experimental modeling of fluid flow in plant xylem. Three experiments were conducted to determine pressures and velocities in the conducting vessels of the xylem portion of a plant using corn syrup as the working fluid and Plexiglas tubing as the test section. The first experiment was performed using a straight duct to model the flow in a xylem vessel without any obstructions. The second experiment was performed using a 5-pore perforation plate as an obstruction in a straight duct. This perforation plate was kept at an angle of 23 degrees relative to the vessel axis …

Periodic Complementary Binary Sequences, Maria Consuelo C Pickle

UNLV Retrospective Theses & Dissertations

Since man devised a way to count, patterns or sequences of numbers have held mathematicians' attention. However, it has only been recently that binary sequences have received so much attention due to their compatibility with computers. For the past 30 years the fields of Electrical Engineering, Computer Engineering and Mathematics have done some extensive research in this area because of its many applications in radar, sonar and the reliability and security of communication systems such as digital communications, faxes, telecommunications and electronic transfers especially in banking and finance. First discussed will be the Perfect Binary Sequence. Then the Golay Complementary …

A Classification Of Groups Satisfying The Converse Of Lagrange's Theorem, Laura Earl Laurent

UNLV Retrospective Theses & Dissertations

This paper is a classification of finite groups satisfying the converse of Lagrange's Theorem. We begin by showing a series of inclusions of classes of finite groups: p-groups {dollar}\subseteq{dollar} nilpotent {dollar}\subseteq{dollar} supersolvable {dollar}\subseteq{dollar} polycyclic {dollar}\subseteq{dollar} solvable. The crucial point of the paper consists of the proof that the class of supersolvable groups is contained in the class of converse Lagrange groups while the class of polycyclic groups is not. We also show that finite cyclic groups and finite abelian groups are included in the class of converse Lagrange groups. Finally, we give an example to show that the class of …

The Relationship Between Attitude Toward Economic Issues And Delivery Of Human Caring In Perioperative Nursing, Candice V King

UNLV Retrospective Theses & Dissertations

While human caring remains an important aspect of nursing, the financial pressures facing the healthcare economy calls for nurses to work more cost-effectively. Using Watson's model of Human Care as the conceptual framework, this study looked at the relationship between attitudes toward economic issues and human caring in perioperative nursing; The NCAS and BHNAS self-reporting scales consisted of a total of 80 items that measured nurses' attitudes regarding cost-effective practice and caring. The sample size was composed of both perioperative nurse managers and staff nurses (n = 34). Data was analyzed utilizing frequency distribution, the Pearson Product Moment Correlation technique, …

Dining Habits And Preferences Of Young Patrons Of Fast Food Restaurants In Singapore And Las Vegas, 1994, Gerry Eng Seng Koh

UNLV Retrospective Theses & Dissertations

The purpose of this study was to investigate and compare the dining habits, preferences, and expectations of 1,012 young patrons of fast food restaurants in Singapore and Las Vegas. The Singapore respondents were students from a Pre-university and SHATEC, a hospitality industry vocational institute. In Las Vegas, the respondents were from the William F. Harrah College of Hotel Administration, University of Nevada, Las Vegas (UNLV); Overall results indicated that there existed more similarities between Pre-university and UNLV students than between Pre-university and SHATEC students. This conclusion was unexpected given differences between Pre-university and UNLV students in terms of age, marital …

A Gradient Analysis Of Coleogyne Communities In Southern Nevada, Simon Adams Lei

UNLV Retrospective Theses & Dissertations

Species richness, density, and abundance in Coleogyne ramosissima (blackbrush) shrublands were compared on 15 elevational transects in the Spring and Sheep Mountain Ranges adjacent to the Las Vegas Valley. Coleogyne shrublands shared relatively broad upper and lower ecotones with Pinus-Juniperus and Larrea-Ambrosia vegetation, respectively. Lower Coleogyne ecotones generally had the highest species richness, and Pinus-Juniperus woodlands had the lowest species richness; Detrended correspondence analysis (DECORANA) suggested that elevation and soil depth were significantly associated with the distribution of stand and species groups identified from two-way indicator species analysis (TWINSPAN) in the Spring and Sheep Mountain Ranges. Precipitation and soil moisture …

Determination Of Soluble Mineral Content In Las Vegas Soils, Mark Alan Leonard

UNLV Retrospective Theses & Dissertations

Lower basin areas in the Las Vegas Valley contain soils with large amounts of soluble minerals. Dissolving and leaching processes due to water intrusion into foundation soils containing soluble minerals can cause a volume reduction of the soil which in turn causes structural stress. Soil improvement recommendations for soluble soils are based upon the amount of soluble minerals of a parent soil. This study reports the results of research to develop a correlation between the electrical conductivity and the concentration of soluble minerals in aqueous soil extracts. Correlations were developed by measuring the total dissolved solids and conductance of aqueous …

Comparative Study Of Advanced Heat Pumps, Craig M Moiola

UNLV Retrospective Theses & Dissertations

A numerical simulation study is reported on the thermodynamic performance of several non-CFC refrigeration devices. The study includes complex compound absorption, Brayton, Stirling, and thermoelectric devices. Comparisons are made to the more commonly applied vapor compression systems, including those using R-134a. The study examines the effect of thermal resistances between the device and the heat rejection or heat absorption space. A cool side temperature difference between 0 and 20{dollar}\sp\circ{dollar}C is investigated, and this temperature difference accounts for both thermal resistance and cooling load. An outside temperature ranging between 35{dollar}\sp\circ{dollar}C and 46{dollar}\sp\circ{dollar}C is considered in the calculations, with a cooled space …

To Defeat A Maverick: Foreign Policy, Barry Goldwater And The 1964 Presidential Election, Jeffreys J Matthews

UNLV Retrospective Theses & Dissertations

This paper examines Cold War influences on early post-World War II presidential elections, Barry M. Goldwater's rise to Republican presidential nominee, and the contribution of foreign policy issues to the Arizonan's defeat in the 1964 presidential election. World War II and the Cold War increased the importance of foreign policy considerations in presidential elections, and from 1948 through 1964, every major party nominee advocated the militant containment of communism. Goldwater was an ardent Cold Warrior, who had developed staunch convictions on domestic and foreign matters. As a senator, his unwavering conservatism cast him as a "maverick" among other Republicans; however, …

New Methods In Image Compression Using Multi-Level Transforms And Adaptive Statistical Encoding, Thomas William Pike

UNLV Retrospective Theses & Dissertations

The need to meet the demand for high quality digital images, with comparatively modest storage requirements, is driving the development of new image compression techniques. This demand has spurred new techniques based on time to frequency spatial transformation methods. At the core of these methods are a family of transformations built on basis sets called "wavelets." The wavelet transform permits an image to be represented in a substantially reduced space by transferring the energy of the image to a smaller set of coefficients. Although these techniques are lossy as the compression ratio rises, very adequate reconstructions can be made from …

High Frequency Surface Estimation, Sai Prasad V Pallati

UNLV Retrospective Theses & Dissertations

Mountain generation can be considered a part of the general theory of surface estimation; In this thesis, two methods have been presented to generate fractals--fast Fourier method and a new generalized stochastic subdivision method. Also, a new surface estimation method has been introduced that deals with points of unequal powers. The uniqueness of this method is the usage of splines to calculate the arc lengths between the points, as opposed to Euclidean distances used in Kriging. The fast Fourier technique has been used to generate mountains in particular; also, some extensions have been suggested, whereby different sets of mountains can …