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2003

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Automated Analysis Of Aqueous Sulfide, Hina Pandey Jan 2003

Automated Analysis Of Aqueous Sulfide, Hina Pandey

Theses and Dissertations

No abstract provided.

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Legislative Voting Record Regarding Independent Pharmacy Ownership In North Dakota, Damian Schlinger Jan 2003

Legislative Voting Record Regarding Independent Pharmacy Ownership In North Dakota, Damian Schlinger

Theses and Dissertations

No abstract provided.

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Grand Forks Public Transportation Department Review And Recommendations, Carol Diamond Gierszewski Jan 2003

Grand Forks Public Transportation Department Review And Recommendations, Carol Diamond Gierszewski

Theses and Dissertations

No abstract provided.

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Improving Resolution Of Stiff Layers In Soil Profiles Through Multi-Step Inversion Of Sasw Data, Haiyan Liu Jan 2003

Improving Resolution Of Stiff Layers In Soil Profiles Through Multi-Step Inversion Of Sasw Data, Haiyan Liu

UNLV Retrospective Theses & Dissertations

Stiff, cemented layers commonly encountered in desert soil profiles significantly affect the soil load capacity and load distribution pattern. The purpose of this research is to develop algorithms for detecting stiff layers through inversion of seismic surface wave data to generate one-dimensional shear wave velocity (VS) profiles; The inversion algorithms begin with a starting model. Development of a high-quality starting model helps ensure good results; Two inversion methods, simulated annealing (SA) and linearized inversion (LI), are applied to the problem. The SA method includes a general approach (SA-G) and an approach developed specifically to investigate stiff-inclusion systems (SA-I). Algorithms for …

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Political Silence, The Feminine Style, And Aids: The Role Of Surrogate Speakers At The 1992 Presidential Nominating Conventions, Rebecca Ruth Moldenhauer Jan 2003

Political Silence, The Feminine Style, And Aids: The Role Of Surrogate Speakers At The 1992 Presidential Nominating Conventions, Rebecca Ruth Moldenhauer

UNLV Retrospective Theses & Dissertations

By the 1992 presidential campaign, AIDS had become a national health crisis and a highly publicized political issue that each party knew had to be addressed. Until this point, presidential candidates had remained relatively silent on the issue without consequence. Due to the nature of the subjects relating to AIDS (i.e. sex, homosexuality, drug use, etc.), the candidates, Bill Clinton and George Bush, felt it an unwise political decision to openly discuss it. Surrogate speakers, therefore, were chosen to address the AIDS issue at the 1992 national nominating conventions. Bob Hattoy, Elizabeth Glaser, and Mary Fisher delivered speeches about AIDS …

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Second Law Analysis Of The Transient Behavior Of Solid Media Thermal Storage Utilizing Finite Difference Computational Modeling, Jason Scott Mulvey Jan 2003

Second Law Analysis Of The Transient Behavior Of Solid Media Thermal Storage Utilizing Finite Difference Computational Modeling, Jason Scott Mulvey

UNLV Retrospective Theses & Dissertations

A computational model utilizing the finite difference method was developed to simulate the behavior of a simple storage system. The system analyzed utilizes the deposition of heat from a fluid to a solid matrix in the initial part of cycle followed by heat removal in the latter part. The storage system was divided into perpendicular slices with respect to the direction of the heat transfer fluid (HTF) flow. The symmetry of the design was then used to further reduce the area of the slice on which the calculations were performed. Two dimensional conduction and convection calculations were performed within the …

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Thermoregulatory Behavior Of The Crayfish Procambarus Clarkii In A Burrow Environment, Aaron Lawrence Payette Jan 2003

Thermoregulatory Behavior Of The Crayfish Procambarus Clarkii In A Burrow Environment, Aaron Lawrence Payette

UNLV Retrospective Theses & Dissertations

The behavioral thermoregulation of the red swamp crayfish, Procambarus clarkii, was investigated and the environmental parameters of crayfish burrows were measured in situ. Although temperatures within burrows fluctuated less than surface temperatures in the Mojave Desert, crayfish can experience sub-optimal temperatures inside the burrow. In the laboratory, P. clarkii heated and cooled more rapidly in water than in air, selected a water temperature of 22°C, and avoided water temperatures above 31°C and below 12°C. P. clarkii displayed three main shuttling behaviors between water and air and the relative amounts of these behaviors and the time spent in air were significantly …

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Factors Associated With The Bioaccumulation Of Mercury In Human Hair Following Consumption Of Fish From The Great Lakes Region, Anne M Rothweiler Jan 2003

Factors Associated With The Bioaccumulation Of Mercury In Human Hair Following Consumption Of Fish From The Great Lakes Region, Anne M Rothweiler

UNLV Retrospective Theses & Dissertations

Due to the ubiquitous nature of mercury in the environment, an increase in potential human health risks arises from exposure to different media. The Great Lakes region, for instance, is an area of known mercury pollution. This project examines the relationship between fish consumption of a sensitive human population and the concentration of mercury in humans using information obtained from the Ojibwa Health Study hair samples and questionnaires, this study focused on the species of fish, the amount of fish, the size of fish, and the geographic source of fish consumed. Also, human factors, such as years of eating Great …

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The Uses And Gratifications Of The World Wide Web At The University Of Nevada-Las Vegas, Peter P Testa Jan 2003

The Uses And Gratifications Of The World Wide Web At The University Of Nevada-Las Vegas, Peter P Testa

UNLV Retrospective Theses & Dissertations

This study extends the uses and gratifications theory to the World Wide Web. Studies like these examine what the Web is used for, and what needs are gratified by using the Web. One hundred thirty college students at the University of Nevada-Las Vegas were surveyed on media and Web usage and gratifications. This study introduces the factors of self-perception of residency and of traditional vs. non-traditional student as influences on Web usage and gratifications for college students; Loneliness was deemed a significant factor for students who did not consider themselves Las Vegas residents. Students who do not consider themselves to …

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Creating Community Through Symbolic Discourse: An Analysis Of Jesse Jackson's Rhetoric At The Democratic National Conventions, 1984--2000, Lance Michael Young Jan 2003

Creating Community Through Symbolic Discourse: An Analysis Of Jesse Jackson's Rhetoric At The Democratic National Conventions, 1984--2000, Lance Michael Young

UNLV Retrospective Theses & Dissertations

The Reverend Jesse Louis Jackson has addressed the Democratic National Convention through five consecutive election cycles. Jackson's political involvement works to challenge the majority value system. Each address aims to create a community consisting of minority voices in America by bringing them into the Democratic Party in hopes of changing national policy. Metaphorical strategy is used to symbolically create a community consisting of minority voices, the Democratic Party, and Jackson himself as the prophetic leader. Symbolically unifying the community against a common enemy strengthens Jackson's community.

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Differences In Television Use Between Adopted And Non-Adopted College-Aged Adults, Christopher Edward Yunker Jan 2003

Differences In Television Use Between Adopted And Non-Adopted College-Aged Adults, Christopher Edward Yunker

UNLV Retrospective Theses & Dissertations

This thesis is an original study that examines the media usage between adoptive and non-adoptive college-aged adults United States. The beginning of this thesis will focus primarily on television's ability to get a message across to a huge audience in the shortest amount of time. It will state the hypotheses and examine the research questions being sought. Simultaneously, it will examine the effect the media has on our youth. Hypothetically, adopted children have been more susceptible to the messages delivered. It will be the intent to analyze and discuss this susceptibility further in this thesis; The survey asked the subjects …

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Overcrowding And Its Effects On Inmate Violent Behavior In Prison, John C Devaney Jan 2003

Overcrowding And Its Effects On Inmate Violent Behavior In Prison, John C Devaney

UNLV Retrospective Theses & Dissertations

Prisons in the United States are overcrowded. The problem of overcrowding has worsened as the years have gone on, especially since the war on drugs and determinate sentencing, have become a part of the American Justice System. This overcrowding has led to concerns about what effects it might have on those that are incarcerated. This study looks at the effects this overcrowding has on inmate violent behavior. Prison administrators are charged with providing a safe and secure atmosphere for inmates to serve the time that they are sentenced to by the states and federal governments. If this overcrowding is creating …

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Identification Of Dynamic Properties Of Materials For The Spent Nuclear Fuel Package At Elevated Temperatures, Sirisha Dusi Jan 2003

Identification Of Dynamic Properties Of Materials For The Spent Nuclear Fuel Package At Elevated Temperatures, Sirisha Dusi

UNLV Retrospective Theses & Dissertations

This thesis attempts to experimentally identify the dynamic properties of materials for the spent nuclear fuel package at elevated temperatures. The implementation of the project involves a number of steps. First, candidate materials for the nuclear fuel package and the appropriate testing systems were identified [15]. Second, fixtures for tensile testing at elevated temperatures using two machines, namely MTS and Instron Dynatup testing machines were designed and manufactured to make them compatible with the room temperature fixture. Third, experimental procedures for elevated temperature testing of materials are proposed for the two testing machines. Finally, impact testing for the candidate materials …

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Development Of An Instrument For Accessing Quality Of A Convention And Visitors Bureau Web Site, Myounghee Ha Jan 2003

Development Of An Instrument For Accessing Quality Of A Convention And Visitors Bureau Web Site, Myounghee Ha

UNLV Retrospective Theses & Dissertations

The continuing growth of the Internet and its associated technology has created a new type of market for meeting managers and Convention and Visitors Bureaus (CVBs), and has become a viable alternative to traditional communication media and service delivery tools. As Internet and web site usage by meeting managers' increase, CVBs should enhance and upgrade their web sites to keep in step with customers' needs and expectations; The purpose of this study is to identify general usage and overall perceptions of CVB web sites and CVB web sites' content items and design attributes that are most important as perceived by …

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Structural Characterization Of Polyurethane Foam And Implications Of Aging, Gayani Chandima Kodippili Jan 2003

Structural Characterization Of Polyurethane Foam And Implications Of Aging, Gayani Chandima Kodippili

UNLV Retrospective Theses & Dissertations

Polyurethane (PU) foam is used as a shock mitigation material in the national stockpile, which degrades over time. A replacement foam, ReCrete was shown to exhibit acceptable mechanical properties after aging, but fractured with impact testing. Previously, processing ReCrete foam at elevated temperature resulted in a decrease of the modulus (stiffness), which was believed to be related to chemical changes during processing. In this thesis, chemical and structural analysis of ReCrete processed at 25°C and 85°C were performed using photoacoustic infrared spectroscopy, IR imaging, and thermal analysis. The change in modulus was related to thermal decomposition of uretoneimine linkages in …

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A Relational Post-Processing Approach For Forms Recognition, Zhenxing Mao Jan 2003

A Relational Post-Processing Approach For Forms Recognition, Zhenxing Mao

UNLV Retrospective Theses & Dissertations

Optical Character Recognition (OCR) is used to convert paper documents into electronic form. Unfortunately the technology is not perfect and the output can be erroneous. Conversion then is generally augmented by manual error detection and correction procedures which can be very costly; One approach to minimizing cost is to apply an OCR post processing system that will reduce the amount of manual correction required. The post processor takes advantage of knowledge associated with a particular project; In this thesis, we look into the feasibility of using integrity constraints to detect and correct errors in forms recognition. The general idea is …

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Study Of Geometry Effects On Local Corrosion Rates For Lbe Loop, Chao Wu Jan 2003

Study Of Geometry Effects On Local Corrosion Rates For Lbe Loop, Chao Wu

UNLV Retrospective Theses & Dissertations

Corrosion is an extremely important issue in nuclear cooling system applications. Many scientific and engineering efforts have contributed to the research of finding an ideal material, which has resistance to corrosive Lead Bismuth Eutectic (LBE). A Delta Loop was designed and constructed in Los Alamos National Lab (LANL) to obtain the experimental data. This loop is a multi-section closed system that differs in diameter from one part to another. As a result, an intensive study on the geometry effect is necessary and valuable. In this thesis, this problem was simulated by commercial software STAR-CD. Results provide a good prediction where …

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Improving Service Quality In Small Communities: The Bahamas As A Model, Kera Lonise Carey Jan 2003

Improving Service Quality In Small Communities: The Bahamas As A Model, Kera Lonise Carey

UNLV Retrospective Theses & Dissertations

Service quality is a topic that permeates every facet of the tourism industry. In small communities such as The Bahamas, where tourism is the driving factor for economic stability, service quality is paramount. In 2001, the Bahamian Ministry of Tourism set customer satisfaction goals for the country and is continually striving to improve the country's visitor satisfaction ratings through market research; This qualitative exploratory study investigates service quality in Bahamian hotels and was inspired by Ministry of Tourism customer service research. The project was tailored to identify service quality gaps within the Bahamian hotel industry by applying the Conceptual Gap …

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Emerging Identities: New Subjects Within Gay Adoption, Megan O Hartzell Jan 2003

Emerging Identities: New Subjects Within Gay Adoption, Megan O Hartzell

UNLV Retrospective Theses & Dissertations

This thesis explores the identity construction and subject positions of gay male foster and adoptive parents. Using late twentieth and early twenty-first century cultural texts, I apply a Foucaultian perspective to analyze how controversies over gay adoptions articulate shifts in contemporary American discourses of homosexuality and the family. Identities available to homosexuals have shifted since the nineteenth century; this thesis looks at the emergence of a new contested identity for homosexuals as adoptive parents at the turn of the twenty-first century by employing Foucaultian methodological techniques of archaeology. This work contributes to the sociological literature on gender, law, and the …

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Dose Coefficients For Radionuclides Produced In A Spallation Neutron Source, John Patrick Shanahan Jan 2003

Dose Coefficients For Radionuclides Produced In A Spallation Neutron Source, John Patrick Shanahan

UNLV Retrospective Theses & Dissertations

Internal and external dose coefficient values have been calculated for 14 anthropogenic radionuclides which are not currently presented in Federal Guidance Reports No. 11, 12, and 13 or Publications 68 and 72 of the International Commission on Radiological Protection. Internal dose coefficient values are reported for inhalation and ingestion of 1 mum and 5 mum particulates along with the f1 values and absorption types for the adult worker. Internal dose coefficient values are also reported for inhalation and ingestion of 1 mum particulates as well as the f 1 values and absorption types for members of the public. Additionally, external …

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Labor Violations And Discrimination In The Clark County Outcall Entertainment Industry, Candice Michelle Seppa Arroyo Jan 2003

Labor Violations And Discrimination In The Clark County Outcall Entertainment Industry, Candice Michelle Seppa Arroyo

UNLV Retrospective Theses & Dissertations

Researchers who insist that sexual exploitation is intrinsic to sex work have deflected attention from two key issues facing sex workers: labor violations and prejudice. The purpose of this study is to investigate unethical labor practices and institutional sexism, racism, and classism in the Clark County outcall entertainment ("escort") industry. To analyze these issues from a sex radical feminist perspective, I spent 820 hours engaged in covert participant observation while working as an appointment setter at two major outcall entertainment agencies in Clark County; Much of the abuse that outcall entertainers in Las Vegas encounter could be eliminated by enforcing …

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Rapid Screening Approach For Cavity Detection Using Surface-Based Seismic Measurements, Gennady Tsarev Jan 2003

Rapid Screening Approach For Cavity Detection Using Surface-Based Seismic Measurements, Gennady Tsarev

UNLV Retrospective Theses & Dissertations

A rapid screening method for detection of shallow cavities using surface-based seismic waves has been developed and documented. Emphasis is placed on seismic surface waves due to their ease of measurement and dispersive nature in heterogeneous media; The study includes a numerical experiment, field experiments, and an analytical study of data collected for buried voids. Multi-channel and two-channel data acquisition technology are explored. An alternative analysis of the data based on impulse response is investigated. The field experiments were conducted at sites with known natural caves, buried barrels, and earth fissures. Two historic data sets were used. The numerical experiment …

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The Design And Implementation Of An Input/Output Subsystem For A Farsi Language Search Engine, Ronald L Young Jan 2003

The Design And Implementation Of An Input/Output Subsystem For A Farsi Language Search Engine, Ronald L Young

UNLV Retrospective Theses & Dissertations

The question posed in this thesis is whether it is feasible to use commonly available computer hardware and software equipment found in the United States for querying a web-based native Farsi language search engine. A document conversion utility consisting of a C program called html2unicode was constructed to convert the native language web pages into a common format. A Javascript keyboard application and corresponding embeddable web server was developed to make native Farsi language input and output accessible to a search engine. Although there are some issues inherent in the conversion of Farsi web pages into a format suitable for …

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Numerical Modeling Of Multiphase Fluid Flow Through The Electrolytic Cell, Roald Rifkatovich Akberov Jan 2003

Numerical Modeling Of Multiphase Fluid Flow Through The Electrolytic Cell, Roald Rifkatovich Akberov

UNLV Retrospective Theses & Dissertations

Electrolytic cells are used to obtain sodium hypochlorite (NaOCl), an important industrial product, from seawater. The chemical reaction of the process (NaCl + H2O → NaOCl + H2) produces hydrogen gas bubbles near the cathode's surface inside a continuous liquid phase. In time, solid particles of calcium carbonate appear on the cell's anode due to the cell operation. Thus, the fluid flow process in the cell, in general, is a three-phase process that includes turbulence. Although hydrogen bubbles and calcium carbonate particles are usually small in size, they aggregate in the system over time and lead to the blockage of …

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Converging Behaviorist And Constructivist Theories In Classroom Settings, Lisa M Freitas Jan 2003

Converging Behaviorist And Constructivist Theories In Classroom Settings, Lisa M Freitas

UNLV Retrospective Theses & Dissertations

Educators attempts to meet the needs of all students become more difficult as school districts are forced to reduce spending which may result in increased class sizes, elimination of second language and enrichment programs, and a reduction in school personnel at school sites. With these budget cuts the demands placed on educators will be even greater. Teachers will be forced to implement new strategies to ensure that no child is left behind. The purpose of this study is to assess the effectiveness of converging behaviorist and constructvist theories into classroom management and instructional practices. Three groups of students were randomly …

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A Comparison Of Thermal Storage Models With A Solar Electric Generation System Using Trnsys, Jade Gaal Jan 2003

A Comparison Of Thermal Storage Models With A Solar Electric Generation System Using Trnsys, Jade Gaal

UNLV Retrospective Theses & Dissertations

Two new component types were developed for the transient simulation program TRNSYS with IISiBat that models three different types of sensible thermal storages for analysis with use in a solar electric generating system (SEGS) simulation. One component containing a fully mixed, stratified and a plug flow tank model has been developed such that the inputs and parameter specifications are similar so that all three models could be easily placed into one component type. A single, cylindrical direct storage tank with one inlet and one outlet that evaluates fluid properties as a function of temperature is representative for all three models. …

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The Creation Of A National Information Policy Combating Cyber Terrorism, Daniel A Nick Jan 2003

The Creation Of A National Information Policy Combating Cyber Terrorism, Daniel A Nick

UNLV Retrospective Theses & Dissertations

The infrastructures of the United States are dependent upon computers. This creates a new threat to the national security of the United States in the form of cyber terrorism; Cyber terrorism is the new type of warfare. It can take a cyber terrorist seconds to break into a computer network, download information, and leave without a trace. There needs to be a comprehensive policy to combat the cyber terrorism threat; The National Information Policy is a set of ideas brought together to combat the threat of a cyber terrorist attack against the infrastructures of the United States. These ideas include: …

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Evaluation Of Cracking And Localized Corrosion Behavior Of Cladding Materials, Subhas Pothana Jan 2003

Evaluation Of Cracking And Localized Corrosion Behavior Of Cladding Materials, Subhas Pothana

UNLV Retrospective Theses & Dissertations

This investigation is focused on the evaluation of stress corrosion cracking (SCC), hydrogen embrittlement (HE) and localized corrosion (pitting and crevice) susceptibility of zircaloy-2 and zircaloy-4 in neutral and acidic solutions at 30, 60, 90°C. Constant-load and slow-strain-rate (SSR) testing methods were used to evaluate the SCC and HE behavior of both alloys by use of smooth and notched tensile specimens. Controlled cathodic potentials were applied to evaluate the hydrogen effect on the cracking behavior. Cyclic potentiodynamic polarization technique was used to determine the localized corrosion susceptibility. The metallography and morphology of failure were analyzed by optical microscopy and scanning …

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Measurement Of Inorganic Arsenic And Chromium Species In Southern Nevada Groundwater Using Ion Chromatography-Inductively Coupled Plasma Mass Spectrometry, Julie A Bertoia Jan 2003

Measurement Of Inorganic Arsenic And Chromium Species In Southern Nevada Groundwater Using Ion Chromatography-Inductively Coupled Plasma Mass Spectrometry, Julie A Bertoia

UNLV Retrospective Theses & Dissertations

Two analytical methods employing an ion chromatograph-inductively coupled plasma mass spectrometer were used to separate inorganic arsenite from arsenate and trivalent from hexavalent chromium in southern Nevada groundwater. Method detection limits were found to be 0.011 ppb and 0.005 ppb for arsenite and arsenate respectively, and 0.015 ppb and 0.02 ppb for trivalent and hexavalent chromium respectively. Following an investigation of the stability of the oxidation states of arsenic and chromium in aqueous solution with time, the following procedures were adopted. Samples collected in the field for arsenic were filtered, stored at 4°C, and analyzed within 7 days; and those …

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Differences Of Year-Round And Traditional-Calendar Elementary Art Programs, Ashley J Forgey Jan 2003

Differences Of Year-Round And Traditional-Calendar Elementary Art Programs, Ashley J Forgey

UNLV Retrospective Theses & Dissertations

The purpose of this study was to investigate the differences of year-round and traditional-calendar elementary art programs due to scheduling. By examining three elementary art specialists in two opposing schedules, the goal of the current study was to discover how the art specialists implemented their programs in different schedules. The research questions were: Did the art specialists have different professional experience or development training? How were the two programs different in time and scheduling? Were the class characteristics different? Did the instructional methods differ?;The findings concluded that implementing an art program in a year-round setting was more complex than a …

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