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Relationships Between The Groundwaters Of Ash Meadows, Death Valley, Pahranagat Valley And The Nevada Test Site Based On Statistical Analysis And Modeling Of Trace Element Data, Sara Michelle Cox
UNLV Retrospective Theses & Dissertations
Relationships between the groundwaters of the Nevada Test Site, Ash Meadows, Pahranagat, and Death Valley have been studied by many people over many years. Using hydrogeochemical data from these areas (sampled and analyzed by the Harry Reid Center for Environmental Studies) hydrologic subbasins were classified on the basis of trace element concentrations and compare these to previous classification systems. In addition, previously suggested flow relationships were examined on the basis of trace element concentrations, in particular those elements which are thought to behave conservatively in oxidizing environments. These efforts were made with the aid of statistical analyses such as principal …
Life History And Population Dynamics Of Daphnia In Seven Ephemeral Pools In Red Rock Canyon, Nevada, Priscilla Kathleen Bowman
Life History And Population Dynamics Of Daphnia In Seven Ephemeral Pools In Red Rock Canyon, Nevada, Priscilla Kathleen Bowman
UNLV Retrospective Theses & Dissertations
Seven ephemeral rock pools in Red Rock Canyon, Nevada were visited bimonthly over twelve months and sampled for resident zooplankton species. Population dynamics and life history characteristics of two Daphnia species, D. pulex and D. obtusa were analyzed with incidental attention given to an additional cladoceran, Moina sp. Aspects of the physical, chemical and biological environment were measured and evaluated. The behavior of these daphnid populations appears to be driven by the extreme seasonality of rock pool ecosystems between episodic disturbances of drought and deluge. No causal relationships between Daphnia population size or patterns of temporal change and abiotic factors …
Solution Of Heat Transfer And Fluid Flow Problems Using Meshless Radial Basis Function Method, Nagamani Devi Kalla
Solution Of Heat Transfer And Fluid Flow Problems Using Meshless Radial Basis Function Method, Nagamani Devi Kalla
UNLV Retrospective Theses & Dissertations
In the past, the world of numerical solutions for Heat Transfer and Fluid Flow problems has been dominated by Finite Element Method, Finite Difference Method, Finite Volume Method, and more recently the Boundary Element Method. These methods revolve around using a mesh or grid to solve problems. However, problems with irregular boundaries and domains can be difficult to properly discretize; In this thesis, heat transfer and fluid flow problems are solved using Radial Basis Functions. This method is meshless, easy to understand, and even easier to implement. Radial Basis Functions are used to solve lid-driven cavity flow, natural convection in …
The Determinants Of Financial Structure: Evidence From Chinese Listed Hospitality Companies, Hong Jiang
The Determinants Of Financial Structure: Evidence From Chinese Listed Hospitality Companies, Hong Jiang
UNLV Retrospective Theses & Dissertations
Although financial structure is crucial to company's sustainable development, rarely any efforts have been made to investigate financial structure in a Chinese hospitality industry setting. This thesis first explores financial structure of Chinese hospitality firms by using panel-data analysis; All listed hospitality firms in China are included in the data sample. The study uses three methods to measure financial structure. They are total leverage ratio, long-term leverage ratio and short-term leverage ratio. Seven determinants, namely, firm size, growth, business risk, profitability, asset structure, listing years and state ownership structure are used to explain variations in leverage ratios. The result of …
Titanium Hydride Up To 90 Gpa: Synchrotron X-Ray Diffraction Studies, Patricia E Kalita
Titanium Hydride Up To 90 Gpa: Synchrotron X-Ray Diffraction Studies, Patricia E Kalita
UNLV Retrospective Theses & Dissertations
The structure and behavior of titanium hydride was studied on compression to about a megabar. Angle-dispersive as well as energy-dispersive synchrotron X-ray diffraction studies were carried out in situ, in diamond anvil cells, in several compression and decompression sequences. A phase transition from a cubic to a tetragonal structure was observed. The pressure evolution of the diffraction patterns revealed that the cubic (Fm-3m) to tetragonal ((4/mmm) phase transition occurs at about 0.6 GPa. The transition was found to be reversible on decompression from 34 GPa but irreversible on decompression from 90 GPa. The influence of the pressure transmitting medium on …
The Effect Of 5-Aminolevulinic Acid Based Photodynamic Therapy And Photochemical Internalization Of Bleomycin On The F98 Rat Glioma Cell Line, Khishigzaya Kharkhuu
The Effect Of 5-Aminolevulinic Acid Based Photodynamic Therapy And Photochemical Internalization Of Bleomycin On The F98 Rat Glioma Cell Line, Khishigzaya Kharkhuu
UNLV Retrospective Theses & Dissertations
The F98 rat glioma cell line, a model for human malignant glioma, was used to investigate the efficacy of 5-aminolevulinic acid (ALA)-mediated photodynamic therapy (PDT) under varying light irradiation conditions. Cells in monolayer were pre-incubated in ALA for 4 hours prior to 635 nm light exposure. Using clonogenic survival assays, it was found that F98 glioma cells were sensitive to ALA-PDT: survival was inversely proportional to light fluence. As evidenced from the LD50 (4 J cm-2 at a fluence rate of 35 mW cm-2), ALA-PDT was found to be more effective in F98 cells compared to that found in another …
Post-Modification Of Polysulfone Using Transition Metal Catalyzed C-H Activation And Suzuki-Miyaura Cross Coupling Reaction, Se Hye Kim
UNLV Retrospective Theses & Dissertations
Polysulfone is a widely used high-performance engineering plastic because of its good mechanical and chemical stabilities. Even though polysulfone has excellent overall properties, the hydrophobic nature of the polymer precludes its broader use in membrane application where hydrophilic character is desired. Until now four post-modification methods of polysulfone have been reported: electrophilic sulfonation, chloromethylation, phthalimidomethylation, and lithiation with n-butyl lithium. However, all these methods suffer serious side reactions, such as chain cleavage and crosslinking of polymer chains, which can alter mechanical properties of the resulting polymer. We have developed a new post-functionalization method of polysulfone that utilizes transition metal catalyzed …
Numerical Modeling Of High Temperature Shell And Tube Heat Exchanger And Chemical Decomposer For Hydrogen Production, Gayatri Kuchi
Numerical Modeling Of High Temperature Shell And Tube Heat Exchanger And Chemical Decomposer For Hydrogen Production, Gayatri Kuchi
UNLV Retrospective Theses & Dissertations
This thesis deals with the development of a three-dimensional numerical model of high temperature shell and tube heat exchanger and chemical decomposer to examine the percentage decomposition of a sulfur trioxide gaseous mixture for the production of hydrogen by the sulfur-iodine thermochemical water splitting cycle, a candidate cycle in the U.S. Department of Energy Nuclear Hydrogen Initiative. A counter flow type straight tube shell and heat exchanger concept is chosen for the analysis. The reacting fluid is a mixture of sulfur trioxide gas and water vapor inside the tubes of the heat exchanger and high temperature helium is the gas …
Neutron Cross-Section Sensitivity Studies In Higher Actinides For Criticality Safety In Reprocessing, Lawrence J Lakeotes
Neutron Cross-Section Sensitivity Studies In Higher Actinides For Criticality Safety In Reprocessing, Lawrence J Lakeotes
UNLV Retrospective Theses & Dissertations
During reprocessing, the spent fuel rod can be divided up into its component parts for separation into different waste streams. These radioactive streams are then directed appropriately toward low-level waste (LLW) storage, high-level waste (HLW) storage, or reuse into a recycled fuel pin. [1]; The issue that requires evaluation is the nuclear reaction of the higher actinides in reprocessing in an aqueous solution with regard to small temperature changes. This will need an analysis of neutron cross section, which is the measure of the probability that a nuclear reaction will occur; The isotopes' cross sections need to be temperature corrected. …
Chemical Synthesis And Characterization Of Aniline Based Palladium Composites And Complexes, Jade Lorrayne Morgan
Chemical Synthesis And Characterization Of Aniline Based Palladium Composites And Complexes, Jade Lorrayne Morgan
UNLV Retrospective Theses & Dissertations
The chemical synthesis of aniline based palladium materials was achieved by the use of the chemical oxidants, PdCl4 2- and PdCl62-. Complex formation was favored by using aniline and polymer formation was favored by the use of n-phenyl-1,4-phenylenediamine (NPPD). All materials were prepared with or without acid. Also, Characterization techniques such as FTIR spectroscopy, UV-Vis spectroscopy, Scanning Electron Microscopy, Thermogravimetric Analysis and X-ray Photoelectron Spectroscopy were used; Hydrogen sorption studies were carried out using a GC/Hydrogen Generator. The aniline complexes had sorption properties up to 1.5% and the NPPD composites showed sorption up to 0.7%. It was found that the …
Microbial-Mediated Removal Of Acrylamide From Canal Systems, Stephanie Kay Labahn
Microbial-Mediated Removal Of Acrylamide From Canal Systems, Stephanie Kay Labahn
UNLV Retrospective Theses & Dissertations
Acrylamide (AMD), a neurotoxin and suspected carcinogen, is present up to 0.05% in linear anionic polyacrylamide (PAM) which is being evaluated as a canal sealant across the western United States. The capacity of canal microorganisms to facilitate AMD degradation was examined to constrain risks of PAM applications. AMD degradation under simulated groundwater flow was determined with soil column tests (repacked and soil cores) and spiked bottle tests verified microbial degradation under in situ and ex situ conditions. Results of the repacked columns indicate AMD degradation in the presence of competing substrates with half-lives ranging from 0.9 to 3.12 hours. Soil …
Asian Massage Parlors In Clark County, Angela Meiwen Lok
Asian Massage Parlors In Clark County, Angela Meiwen Lok
UNLV Retrospective Theses & Dissertations
The U.S. Department of Justice has identified Las Vegas, Nevada as a hotspot for trafficking for sexual exploitation (Farley, 2007). The objective of this research is to determine whether Asian massage parlors are openly operating as unlicensed businesses in Las Vegas and consider the licensing issues faced in Las Vegas. Recent focus on the issues of human trafficking and high profile stings against Asian massage parlors has created a public debate about the licensing and enforcement against Asian massage parlors in Clark County. This research will consider a number of facets surrounding Asian massage parlors, from stereotypes associated with Asian …
The Lost Promise Of Heaven: An Examination Of Gender In Children's Literature, 1790--1830, Ea Nicole Madrigal
The Lost Promise Of Heaven: An Examination Of Gender In Children's Literature, 1790--1830, Ea Nicole Madrigal
UNLV Retrospective Theses & Dissertations
The United States republic can be defined by its cultural, social, and political change. Historians like Linda Kerber contend that this moment magnified gender difference. This was in fact a time that gender expectations were further defined. However, representations of gender in children's literature indicate that although some stories illustrated different roles and expectations for male and female readers, there were other stories that emphasized similarities between all children; Analogous to Susan Juster's findings from this period that men and women described religious conversion experiences similarly, religious children's literature detailed the spiritual commonalities of boys and girls. Gender was insignificant …
An Alternative Study Of Chinese History: Two Daoist Temples, Joan Lorraine Mann
An Alternative Study Of Chinese History: Two Daoist Temples, Joan Lorraine Mann
UNLV Retrospective Theses & Dissertations
The Daoist temple is a largely overlooked feature in the study of the history of China. The temple has been an important component of Chinese history since the Zhou dynasty, beginning in the Spring and Autumn period and continuing into the Warring States period.1 It is Daoism that made immortals of mortal Chinese war heroes, emperors, leaders, and ancestors. It is these celestials and immortals, found only in a Chinese Daoist temple that can so successfully relate the history of the common man in China. The Chinese have venerated these Daoist celestials and immortals to the status of "gods," and …
When News Breaks, "The Daily Show" Fixes It: Exposing Social Values Through Satire, Daniel Brandon Mccue
When News Breaks, "The Daily Show" Fixes It: Exposing Social Values Through Satire, Daniel Brandon Mccue
UNLV Retrospective Theses & Dissertations
This thesis asserts that news satires (The Daily Show, The Onion, Saturday Night Live, and others) expose the mythological function of news by revealing violations of social values expressed implicitly in news stories. By employing irony, a rhetorical trope, these news satires provide a social critique of people and institutional power. Using a combination of critical analysis, content analysis, and historiography, this thesis defines news, irony, satire, and parody, and explores news satires that have found a mass audience in the United States in the decades following the birth of television. A synthesis of these definitions and explorations will support …
Synthesis And Characterization Of Novel Asymmetrically Substituted Bisphenazines And Their Self Assembling Properties, Kelly Kathleen Mcgrath
Synthesis And Characterization Of Novel Asymmetrically Substituted Bisphenazines And Their Self Assembling Properties, Kelly Kathleen Mcgrath
UNLV Retrospective Theses & Dissertations
The self-assembly of pi-conjugated materials into one-dimensional (1-D) nanostructures via intermolecular pi-electron overlap is of particular interest for optoelectronic device miniaturization. There have been a number of pi-conjugated organic semiconductors reported with the ability to self-assemble to produce nanofibers, nanobelts, and nanotubes. However, the majority of these molecules are electron-rich (p-type) and thus the demand for electron-deficient (n-type) semiconductors is high since the availability of useful n-type semiconductors is limited; The design strategy and synthetic routes for novel n-type organic semiconductors based on bisphenazine are reported. The thermal, optical, and electrochemical properties studied by DSC, UV-visible and fluorescence spectroscopy, and …
A Relationship Analysis Of Restaurant Inspection Violations, Employee Behaviors, And Inspection Grades, Edward G Mckeown
A Relationship Analysis Of Restaurant Inspection Violations, Employee Behaviors, And Inspection Grades, Edward G Mckeown
UNLV Retrospective Theses & Dissertations
The purpose of the paper is to determine whether employee behaviors or non-employee behaviors have a more significant effect on health inspection grades given by the Southern Nevada Health District. As foodborne illness outbreaks continue to rise, discovering whether the violations stem from employee behaviors or from items not related to employee behavior is essential. The results will be useful for both industry and academics in helping to establish a means for understanding where violations occur within food establishments; 205 restaurant health inspections were collected with grades other than 'A'. Behavior based violations had a higher impact on the grade. …
Synthesis And Characterization Of Electrochemical Polyaniline/Palladium Composites, Nicole Martha Millick
Synthesis And Characterization Of Electrochemical Polyaniline/Palladium Composites, Nicole Martha Millick
UNLV Retrospective Theses & Dissertations
Polyaniline (PANI) is an acid doped conductive polymer. The electrochemical preparation of PANI allows the oxidation state, proton doping, and conductivity to be controlled. The high electron density can be utilized to reduce metal species into the polymer. The metal provides discrete reaction sites that can be exploited for catalysis and chemical sensing. The electrochemical reduction of PdCl62- or PdC142- into PANI was used to produce PANI/Pd composites. Characterization of the composites using Fourier-transform infrared analysis and scanning electron microscopy provides insight into the chemical properties, oxidation state of the polymer and metal, and the morphology of the composite. The …
The Male Homoerotics Of Shakespearean Drama: A Study Of "The Merchant Of Venice," "Twelfth Night," And "Othello", Anthony Guy Patricia
The Male Homoerotics Of Shakespearean Drama: A Study Of "The Merchant Of Venice," "Twelfth Night," And "Othello", Anthony Guy Patricia
UNLV Retrospective Theses & Dissertations
This study seeks to both challenge and complicate the assumed heteronormativity of Shakespeare's The Merchant of Venice, Twelfth Night, and Othello. Reading and analyzing these texts in such a manner provides the only means to access and interpret the homoerotics embedded deeply within them in a meaningful way that, in turn, enhances traditional understanding of Renaissance England.
The Evolution Of Dramatic Storylines In The Packaging, Selling And Legitimizing Of Ultimate Fighting Championship, Brian Scott O'Hara
The Evolution Of Dramatic Storylines In The Packaging, Selling And Legitimizing Of Ultimate Fighting Championship, Brian Scott O'Hara
UNLV Retrospective Theses & Dissertations
This thesis analyzes the phenomenon of the Ultimate Fighting Championship from a media perspective to illustrate the ability of contemporary television, especially with its emphasis on "reality" based themes, to take an activity, event, or group of people previously marginalized and to give them an elevated status in the eyes of the viewer. The goal of this thesis is to [1] provide an analysis regarding a historical representation of American prize-fighting in the media, [2] review the major areas of research related to this topic, [3] identify the evolution of production elements throughout the history of the Ultimate Fighting Championship, …
Direct Democracy And State Legislatures: Does Professionalism Matter?, Donald D Mirjanian
Direct Democracy And State Legislatures: Does Professionalism Matter?, Donald D Mirjanian
UNLV Retrospective Theses & Dissertations
This thesis seeks to improve our understanding of the relationship between state legislative professionalism and direct democracy. Using institutionalist theory as a framework, I employ negative binomial regression to measure frequency changes in statewide ballot initiatives (1990-2000) as a function of state legislative professionalism. I find that increased professionalism is associated with higher levels of ballot initiatives appearing on statewide ballots, after controlling for qualification difficulty, interest group strength, divided government, and demographic variables. While the conclusions may not provide insight as to the long-term (or short-term, for that matter) quality of the initiatives or referenda, they do provide insight …
An Implementation Of Active Objects In Java, George Oprean
An Implementation Of Active Objects In Java, George Oprean
UNLV Retrospective Theses & Dissertations
Active objects are a form of multitasking for computer systems. Active objects manipulate their own execution thread instead of using the execution thread of the object that created them. When a method is invoked on an active object, the call returns immediately and the caller continues execution. Thus, active objects can be utilized to develop parallel applications; Active object model can be implemented in a number of different ways: with patterns, external libraries or extending the language. The solution proposed by this thesis is to implement active objects by extending the Java language with new keywords. We have modified Sun's …
Romeo Bones, Ron Paul Salutsky
Romeo Bones, Ron Paul Salutsky
UNLV Retrospective Theses & Dissertations
Romeo Bones is a collection of verse exclusively composed while the poet was a graduate student in the Creative Writing International Master of Fine Arts (MFA) program at the University of Nevada, Las Vegas. The manuscript has three primary divisions---and two intercalary---which respectively confront otherness, subjectivity, and past/present self, each not to exclude the others' resonance.
Attrition Of Esl Foreign-Born Hispanic Students At Csn, Luis B Ortega
Attrition Of Esl Foreign-Born Hispanic Students At Csn, Luis B Ortega
UNLV Retrospective Theses & Dissertations
This qualitative naturalistic study examined the retention barriers for foreign-born Hispanic English as Second Language (ESL) students that dropped out of the College of Southern Nevada (CSN) ESL for-credit program and the need for services they perceived would have helped them succeed. The participants for this study were foreign-born Hispanics who were taking ESL 110B, ESL 111B and ESL 120B (levels 1, 2, and 3) during the 2005-2006 academic year and have since dropped out. The main focus of the study was on institutional and social factors that affected the retention rate of this population at CSN. Four in-depth interviews …
Brand Personality And Destination Image Of Istanbul: A Comparison Across Nationalities, Safak Sahin
Brand Personality And Destination Image Of Istanbul: A Comparison Across Nationalities, Safak Sahin
UNLV Retrospective Theses & Dissertations
This study is intended to measure brand personality and destination image of Istanbul (Istanbul, Turkey) and compare the perceived image and personality across different nationalities. A representative sample of 334 tourists was surveyed while visiting Istanbul and 272 usable surveys were analyzed in SPSS 15. The survey instrument included quantitative and qualitative (open ended) items to better grasp the visitors' individual perceptions. Respondents were grouped into four segments depending on the geographic and cultural proximity of their nationalities: USA, UK, Europe, and East Asia. Factor analysis was conducted to find underlying image and personality dimensions. Next ANOVA was conducted to …
Thermal Modeling Of A High Concentration Photovoltaic System, Aaron M Sahm
Thermal Modeling Of A High Concentration Photovoltaic System, Aaron M Sahm
UNLV Retrospective Theses & Dissertations
A two-dimensional numerical model was developed to simulate a single chamber with an array of cells for a high concentration photovoltaic system. Gambit was used to generate the computational mesh and Fluent was used to obtain the numerical simulation results. The cells were treated as heat sources with efficiencies that change as a function of temperature. Initially a simulation was run with an assumed cell efficiency of 25%. After the maximum temperature was determined, the cell efficiency was calculated and input into the model to recalculate the temperature solution. Radiation and convection modes of heat transfer were the primary focus …
Prototyping The New-Guard Portable Device For Radiation Detection, Aaron Ponzio
Prototyping The New-Guard Portable Device For Radiation Detection, Aaron Ponzio
UNLV Retrospective Theses & Dissertations
A novel and efficient radiation detection algorithm fused together with a new generation detection unit will produce an effective detector to battle field radiation measurement problems and reduce field surveyor work hazards. The SPRT (Sequential Probability Ratio Test) algorithm helps increase reliability and speed of radiation detection; the new generation detector improves the detector's flexibilities, applications, and functions. A prototype system of the New Generation User Adaptable Radiation Detector (New-GUARD) is developed and analyzed to determine the system feasibility of usage, development, and safety for radiation detection. Development stages include the implementation of the Graphical User Interface (GUI), building the …
Using Mortality Salience To Increase Procedural Fairness In The Penalty Phase Of Capital Trials, Jared A Shoemaker
Using Mortality Salience To Increase Procedural Fairness In The Penalty Phase Of Capital Trials, Jared A Shoemaker
UNLV Retrospective Theses & Dissertations
Previous research suggests that jurors are more likely to emphasize aggravating circumstances and disregard mitigating circumstances during the sentencing phase of capital cases. This is not only contrary to the ideals of procedural fairness espoused in most death penalty statutes, but it also increases a capital defendant's likelihood of receiving the death penalty; The current study explores whether mortality salience and worldview defense, key components of terror management theory, can increase procedural fairness in capital cases by increasing jurors' attention to mitigating circumstances. This is achieved through a factorial-design jury simulation in which mock jurors are exposed to varying levels …
The Reading Span Test And Its Predictive Power For Reading Comprehension Among Young And Old Adults, Paul James Schroeder
The Reading Span Test And Its Predictive Power For Reading Comprehension Among Young And Old Adults, Paul James Schroeder
UNLV Retrospective Theses & Dissertations
Although many researchers appear to agree on the usefulness of both simple and complex span tasks, many disagree on the specifics of how or why they measure working memory. The following paper considers competing theories of the relationship between working memory tasks and higher order cognitive function. Consideration is given to simple and complex measures of working memory, various theories about them, and theories based on research within the cognitive aging domain. Subsequent discussion reports the findings from a new study aimed at resolving disagreements about the relationship between lower and higher level cognitive abilities in college-age and older adults.
Veterinary Technology Graduates' Perception Of Preparedness And Utilization In The Workforce, Melissa Ann Schalles
Veterinary Technology Graduates' Perception Of Preparedness And Utilization In The Workforce, Melissa Ann Schalles
UNLV Retrospective Theses & Dissertations
This is a descriptive study to determine the perceptions of the Associate of Applied Science graduates of the Veterinary Technology program at the College of Southern Nevada on their preparedness for and utilization in the veterinary workforce. These graduates complete an accredited program which follows the guidelines on the essential and recommended skills list identified and approved by the American Veterinary Medical Association's Committee on Veterinary Technician Education and Activities (AVMA/CVTEA); This study allowed the researcher to review the current curriculum at the College of Southern Nevada by reporting data from annual graduate follow-up surveys to confirm the curriculum complements …