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2006

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Self-Stabilizing Sorting On Linear Networks, Lakshmi Visvanathan Jan 2006

Self-Stabilizing Sorting On Linear Networks, Lakshmi Visvanathan

UNLV Retrospective Theses & Dissertations

A self-stabilizing system has the ability to recover from an arbitrary (possibly faulty) state to a normal state without any manual intervention. A self-stabilizing algorithm does not require any initialization. Starting from an arbitrary state, it is guaranteed to satisfy its specification in finite number of steps; We propose a self-stabilizing distributed sorting algorithm on an oriented linear network with n nodes. Each node holds some initial value(s) drawn from an arbitrary set. We assume that we start with at most k items in the network. Each node has a local memory whose space is restricted to O(k * L …

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Self-Stabilizing Cluster Routing In Manet Using Link-Cluster Architecture, Chakradhar R Jagganagari Jan 2006

Self-Stabilizing Cluster Routing In Manet Using Link-Cluster Architecture, Chakradhar R Jagganagari

UNLV Retrospective Theses & Dissertations

We design a self-stabilizing cluster routing algorithm based on the link-cluster architecture of wireless ad hoc networks. The network is divided into clusters. Each cluster has a single special node, called a clusterhead that contains the routing information about inter and intra-cluster communication. A cluster is comprised of all nodes that choose the corresponding clusterhead as their leader. The algorithm consists of two main tasks. First, the set of special nodes (clusterheads) is elected such that it models the link-cluster architecture: any node belongs to a single cluster, it is within two hops of the clusterhead, it knows the direct …

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Material Characterization And Parametric Studies Of Explosion-Proof Vessel, Jagadeep Thota Jan 2006

Material Characterization And Parametric Studies Of Explosion-Proof Vessel, Jagadeep Thota

UNLV Retrospective Theses & Dissertations

Light-weight explosion-proof vessels can be an important tool for the temporary storage and transportation of explosive materials. Design, analysis and testing of these types of vessels present many technical challenges. Several composite vessel designs have been developed by the Russian Nuclear Federal Center (RFNC-VNIIEF). This thesis characterizes the materials used in the manufacture of the explosion-proof vessel. The objective of the research also involves the determination of an efficient analysis procedure for the explosion-proof vessel that provides a combination of accuracy, computational speed and modeling simplicity in carrying out a parametric analysis. The explosion-proof vessel is finally optimized to reduce …

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Lead Contamination In Candies Imported From Latin America, Heather R Fels Jan 2006

Lead Contamination In Candies Imported From Latin America, Heather R Fels

UNLV Retrospective Theses & Dissertations

The problem of lead in candies imported from Latin America is an important health disparities issue as it particularly affects the health of children living in Latino Diasporas in the United States. Our research team at the University of Nevada Las Vegas was the first to employ the X-ray florescence (XRF) machine in the screening of candies for lead. The XRF is a novel instrument that can quickly, efficiently, and cost-effectively test for lead contamination. Once contaminated candies were identified, an exhaustive review of applicable laws and polices that can be utilized in the regulation of imported toxic candies was …

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Paleoepidemiology Of Bacterial Infections Among Prehistoric Human Populations In Northern Chile: An Ancient Dna Approach, Luz-Andrea Pfister Jan 2006

Paleoepidemiology Of Bacterial Infections Among Prehistoric Human Populations In Northern Chile: An Ancient Dna Approach, Luz-Andrea Pfister

UNLV Retrospective Theses & Dissertations

Bacterial pathogens not primarily affecting the skeleton but causing sepsis and death, have not been systematically studied in prehistoric human populations, although increasing evidence support our species long co-evolution with many of them. With molecular methods we can identify bacteria at the species level and distinguish pathogenic from environmental and soil bacteria. Bone marrow of ancient people may provide valuable information about ancient pathogens causing sepsis and death. To test the hypothesis that PCR amplification using universal bacterial primers will identify prehistoric bacterial pathogens in bone marrow, 30 samples were aseptically obtained from partially mummified remains of three archaeological sites …

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Photodynamic Therapy Induces Oxidation In Breast And Brain Cancer Cell Lines, Sarah Ann Ziegler Jan 2006

Photodynamic Therapy Induces Oxidation In Breast And Brain Cancer Cell Lines, Sarah Ann Ziegler

UNLV Retrospective Theses & Dissertations

Photodynamic Therapy (PDT) is a cancer treatment modality that utilizes both a photosensitizing drug and light irradiation. To better understand how PDT induces cell death, four human breast cancer (DC4, DB46, MCF7 and MDA-MB-435) and two rat glioma (BT4C and F98) cell lines were treated with 635 nm light from a diode laser following incubation with either PhotofrinRTM or aminoleuvilinic acid (ALA). Cellular responses were evaluated by: clonogenic survival, cell cycle distribution, fluorescent microscopy, protein oxidation and lipid oxidation assays. PDT was able to induce both apoptosis and necrosis as well as protein and lipid oxidation. Even though breast cancer …

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Computational Fluid Dynamics (Cfd) Analysis Of Decomposition Reaction Inside The Solar Fluid Wall Reactor, Vijaykaartik Kumar Jan 2006

Computational Fluid Dynamics (Cfd) Analysis Of Decomposition Reaction Inside The Solar Fluid Wall Reactor, Vijaykaartik Kumar

UNLV Retrospective Theses & Dissertations

A solar thermo-chemical reactor has been designed and modeled to study the flow of decomposition reactions. The reaction considered in this case is the thermal reduction of metal oxide, as part of a two-step water splitting cycle for hydrogen generation and methane decomposition, which directly generates hydrogen in a single step reaction. The reaction takes place at 2000 K to 2500 K using concentrated solar energy as the source. In this model, the reactor is comprised of two concentric cylinders, which are made of graphite. The input zinc oxide is assumed to be uniform in particle size during the simulation. …

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Analysis Of Determinant Factors Of A Convention And Visitors Bureau Website Service Quality: Perspectives Of Meeting Planners, Min Sook Kim Jan 2006

Analysis Of Determinant Factors Of A Convention And Visitors Bureau Website Service Quality: Perspectives Of Meeting Planners, Min Sook Kim

UNLV Retrospective Theses & Dissertations

Website service quality is widely accepted as one of the key determinants of online business success. Several studies identified key factors that determine the website service quality factors appropriate for online business environments (Kaynama & Black, 2000; Van Riel, Liljander, & Jurriens, 2001). A convention and visitors bureau (CVB) website is a service portal that delivers information online about a destination so users can develop an overall image of the location; CVBs struggle to deliver positive destination images because the competition among destinations to host conventions is intense. In spite of the important role of CVBs and the beneficial spillover …

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Maximize Our Missions Mui Tsai, Missionaries And Material Representation, Michelle A Lettieri Jan 2006

Maximize Our Missions Mui Tsai, Missionaries And Material Representation, Michelle A Lettieri

UNLV Retrospective Theses & Dissertations

This study sheds light on the contributions of American Protestant missionaries in parlaying their experiences gleaned from overseas Chinese assignments in establishing domestic mission programs in America aimed at "saving" Chinese girls. In doing so, female missionaries built institutions and launched social programs that used the mui tsai (Chinese domestic servants), their experiences, and their transformation from "heathen to Christian" as a material representation of the success and necessity of domestic and overseas Chinese missionary ventures. In doing so, missionary women constructed national and transnational networks armed with the goal of maximizing their missions and Christianizing China. Although this study …

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The Forgotten Chinese Cemetery Of Carlin Nevada: A Bioanthropological Assessment, Ryan William Schmidt Jan 2006

The Forgotten Chinese Cemetery Of Carlin Nevada: A Bioanthropological Assessment, Ryan William Schmidt

UNLV Retrospective Theses & Dissertations

The investigation of historical cemeteries enables direct assessment of biological variability, health and disease, and additional insights into populations that have gone relatively undocumented in North America and elsewhere. This thesis examines a historic cemetery located in northern Nevada, in the town of Carlin. A total of 13 well-preserved skeletal individuals were excavated in 1996, all buried within coffins and whose Chinese origin has been confirmed through historical documentation and associated artifacts (Chung et al. 2005). Although the sample size is small, it provides a number of important insights into the health and behavior of early Chinese-American communities, including dental …

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The Presidential Performance Of George W. Bush As A Visual Construct, Kristen Allen Stetzenbach Jan 2006

The Presidential Performance Of George W. Bush As A Visual Construct, Kristen Allen Stetzenbach

UNLV Retrospective Theses & Dissertations

The purpose of this study is to examine George W. Bush's performance as President of the United States through mediated visual messages. In this paper performance will be conceptualized using a content analysis method. This paper presents the notion that presidential performance and the job of being president are linked. The study is meant to watch President Bush and document his appearances as seen through mediated images. The New York Times' front pages from George W. Bush's first inauguration in January 2001 up to his re-election and second oath of office in 2005 were analyzed for six categories of visual …

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Alpha Particle Transport In Voxelized Trabecular Bone Images, George Tabatadze Jan 2006

Alpha Particle Transport In Voxelized Trabecular Bone Images, George Tabatadze

UNLV Retrospective Theses & Dissertations

Alpha particles are of current interest in radionuclide therapy due to their short range and high rates of energy transfer to target tissues. Published values of alpha-particle absorbed fractions in skeletal tissues do not vary with particle energy, cellularity or skeletal site. To correct for this, absorbed fractions are calculated using Monte Carlo techniques in 3D voxelized images. In this study absorbed fraction values are acquired for deep marrow (TAM), shallow marrow (TAMS), and trabecular bone volume (TBV) targets for a broad energy spectrum of alpha particles originating in the TAM, TAMs, and TBV of 33 voxelized images. Additionally the …

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Evaluating Educational Web Sites, Denber Rey S Cruz Jan 2006

Evaluating Educational Web Sites, Denber Rey S Cruz

UNLV Retrospective Theses & Dissertations

A rubric was created to compare and contrast Web sites based on four criteria: (a) technical aspect, (b) types of content available, (c) authority and, (d) accessibility. The rubric was designed to compare sites to one another. The sites were also grouped into categories: (a) higher education sites, (b) content sites, (c) commercial sites, (d) school districts. The categories were also compared to each other; To compare the sites to each other, a percentage score was given for each of the four criteria. A total percentage score was also given to each site. The score for all of the sites …

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Public College Students' Academic Experiences And Performance In Utah's Religious Enclave, Joe Peterson Jan 2006

Public College Students' Academic Experiences And Performance In Utah's Religious Enclave, Joe Peterson

UNLV Retrospective Theses & Dissertations

Many American colleges were established in "religious enclaves," regions dominated by somewhat homogeneous religious cultures that were formed when cobelievers experienced socially inhospitable conditions and removed themselves from the culturally diverse mainstream and gathered into more homogeneous cultural strongholds. Through modernization and urbanization, many former religious enclaves have evolved into pluralistic social settings; however, one large enclave remains. In Utah, students at public colleges and universities experience a cultural environment where the LDS (Mormon) religion has overwhelming demographic dominance (77 percent of Utah's population in 2000, Grammich, 2004, p. 20). This dissertation explores the influence of the enclave milieu on …

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Exploring The Effects Of Online Instructional Models On The Writing Achievement Of High School Students With And Without Disabilities, Bradley Jon Kaffar Jan 2006

Exploring The Effects Of Online Instructional Models On The Writing Achievement Of High School Students With And Without Disabilities, Bradley Jon Kaffar

UNLV Retrospective Theses & Dissertations

The purpose of the study was to investigate the effectiveness of three online models for teaching a paragraph writing strategy to students with and without disabilities. A learning strategist instructor implemented The Paragraph Writing Strategy (Schumaker & Lyerla, 1993) using three treatment groups that included the following online models: (a) Power Point media, (b) streaming video, and (c) multimedia (Power Point and video). Participants were 121 high school students in grades 9 through 12 enrolled in an online charter school program; there were 27 students with disabilities and 94 students without disabilities. Data were collected to answer five research questions …

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A Comprehensive Structural Model Of Factors Affecting Online Consumer Travel Purchasing, Hsing Wen Jan 2006

A Comprehensive Structural Model Of Factors Affecting Online Consumer Travel Purchasing, Hsing Wen

UNLV Retrospective Theses & Dissertations

The purpose of this research was to develop a comprehensive model to study consumers' online purchase intention of travel products. Related literature reviews suggested antecedents of consumers' online purchase intention including EC travel web site design, past purchase experience, consumer trust, consumer's attitudes toward online shopping of travel products; The model was developed by integrating one existing theoretical model (Shim's Online Pre-purchase Intentions Model) with several important factors which were guided by theories: (1) social cognitive theory, (2) self-efficacy theory, (3) theory of planned behavior (TPB), (4) attitude-behavior consistency theory, (5) theory of consumer trust, and (6) communication theory. As …

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Remembering The Pain: Psychosocial Factors Related To Endometriotic Pain And Its Recall, Sarah E Nunnink Jan 2006

Remembering The Pain: Psychosocial Factors Related To Endometriotic Pain And Its Recall, Sarah E Nunnink

UNLV Retrospective Theses & Dissertations

Endometriosis is a chronic and debilitating disease, affecting women of childbearing years in a variety of ways, including infertility, dyspareunia, dysmenorrhea, and chronic pelvic pain. Diagnosis and treatment planning are guided primarily by retrospective pain recall, regardless of the fact that (1) there is only a tenuous relationship between pain reports and physical pathology and (2) the accuracy of pain recall has never been assessed in this population. The current study investigated the accuracy of endometriotic pain recall over a 30-day period, as well as potential psychological mediators to pain recall accuracy, including general psychological wellbeing, distress specific to infertility, …

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Youth At Risk For Anxiety: Evaluation Of A Brief Panic Prevention Program, Kelly Lynn Drake Jan 2006

Youth At Risk For Anxiety: Evaluation Of A Brief Panic Prevention Program, Kelly Lynn Drake

UNLV Retrospective Theses & Dissertations

This was the first pilot study to examine the effectiveness of a single-session panic prevention workshop for youth. Participants were recruited using various forms of mass media, advertisements, flyer distribution, and personal contacts. Following a brief screening, participants were assigned to a single-session panic prevention workshop (n = 9) or a waitlist control condition (n = 10). Youth in the workshop group completed pre-workshop assessments including self-report measures of anxiety sensitivity, general anxiety, panic attack symptomatology, and depression. In addition, a semi-structured diagnostic interview was used to assess panic attacks, panic disorder, and agoraphobia Also, during pre-workshop assessment, parents completed …

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Violent Women In Film And The Sociological Relevance Of The Contemporary Action Heroine, Kathryn A Gilpatric Jan 2006

Violent Women In Film And The Sociological Relevance Of The Contemporary Action Heroine, Kathryn A Gilpatric

UNLV Retrospective Theses & Dissertations

This research examines mainstream representations and imagery of violent women in American cinema in a broad sense, and looks more specifically at the sociological relevance of the contemporary filmic action heroine. This research is not interpretive in nature but instead draws upon original data gained from an extensive content analysis spanning a 15-year period from 1991 to 2005. In addition, the research includes secondary source data gathered from movie industry statistics and industry reports in order to provide an empirically descriptive analysis of violent female action characters in contemporary American film; While many feminist film theorists argue that female action …

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Removal Of The Cyanobacterial Toxin Microcystin -Lr By Biofiltration: Identification Of Toxin-Degrading Bacteria And Effects Of Backwashing, Lazaro Eleuterio Jan 2006

Removal Of The Cyanobacterial Toxin Microcystin -Lr By Biofiltration: Identification Of Toxin-Degrading Bacteria And Effects Of Backwashing, Lazaro Eleuterio

UNLV Retrospective Theses & Dissertations

The removal of the cyanobacterial toxin microcystin-LR by slow and rapid drinking water biofilters, the presence of the microcystin-degrading bacteria in operating biofilters, the impact of backwashing on the removal of microcystin by biofiltration, and the prediction of microcystin-LR removal using a nonsteady-state biofilm model were investigated. A newly recognized microcystin-LR degrader, Morganella morganii, exists in Lake Mead and operating active biofilters. The results of the biodegradation tests indicated that addition of a carbon source, in the form of biodegradable NOM, significantly delayed the degradation of microcystin-LR. The biofiltration experiments demonstrated that at steady-state, biofiltration may be a potential technology …

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The Use Of Formative Evaluation With Online Courses By Teachers At The Secondary Level, David Alvin Garner Jan 2006

The Use Of Formative Evaluation With Online Courses By Teachers At The Secondary Level, David Alvin Garner

UNLV Retrospective Theses & Dissertations

This case study investigated the use of formative evaluation by three teachers who designed and delivered online courses at the secondary level. Formative evaluation involves collecting data that could be used to improve the effectiveness of the design and delivery of a course. Teachers were observed teaching the courses they designed for one quarter and then were given a workshop introducing them to formative evaluation techniques. They were observed for another quarter to determine if their delivery or design practices changed. Additional data were collected through interviews and through the analysis of course-related artifacts that included emails, journal entries by …

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Bomb-Pulse Chlorine-36 At The Proposed Yucca Mountain Repository Horizon: An Investigation Of Previous Conflicting Results And Collection Of New Data, James Cizdziel, Amy J. Smiecinski Jan 2006

Bomb-Pulse Chlorine-36 At The Proposed Yucca Mountain Repository Horizon: An Investigation Of Previous Conflicting Results And Collection Of New Data, James Cizdziel, Amy J. Smiecinski

Publications (YM)

Previous studies by scientists at Los Alamos National Laboratory (LANL) found elevated ratios of chlorine-36 to total chloride (36C1/C1) in samples of rock collected from the Exploratory Studies Facility (ESF) and the Enhanced Characterization of the Repository Block (ECRB) at Yucca Mountain as the tunnels were excavated. The data were interpreted as an indication that fluids containing "bomb-pulse" 36C1 reached the repository horizon in the -50 years since the peak period of above-ground nuclear testing. Moreover, the data support the concept that so-called fast pathways for infiltration not only exist but are active, possibly through a combination of porous media, …

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Blame Canada (And The Rest Of The World): The Twenty-Year War On Imported Prescription Drugs, Daniel L. Pollock Jan 2006

Blame Canada (And The Rest Of The World): The Twenty-Year War On Imported Prescription Drugs, Daniel L. Pollock

Seton Hall Journal of Legislation and Public Policy

No abstract provided.

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Spatiotemporal Variations Of Englacial Scattering Of Radar Within Bench Glacier A Temperate Glacier In Coastal Alaska, Joel M. Brown Jan 2006

Spatiotemporal Variations Of Englacial Scattering Of Radar Within Bench Glacier A Temperate Glacier In Coastal Alaska, Joel M. Brown

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

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The Effectiveness Of A Literature-Driven English Programme In Improving The English Language Skills Of Secondary One Students In Singapore, Mary Delfin Pereira Jan 2006

The Effectiveness Of A Literature-Driven English Programme In Improving The English Language Skills Of Secondary One Students In Singapore, Mary Delfin Pereira

Theses

The aim of the research was to discover whether an integrated Literature and English curriculum would be effective in enhancing the English language skills of students in schools. The curriculum initiative project was conducted as multiple site case studies in four secondary schools in Singapore over a span of five to six weeks during 2004. These schools included a girls’ only school, a boys’ only school and two co-educational schools. These schools were also of different types: independent, government-aided and government schools. The sample within and across the schools provided: different levels of performance in a graded situation; multiple teachers …

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Texas Silver-Haired Legislature Foundation, Jim Hine, Texas Silver Haired Legislature Foundation, Texas Silver-Haired Legislature, Jim Hine Jan 2006

Texas Silver-Haired Legislature Foundation, Jim Hine, Texas Silver Haired Legislature Foundation, Texas Silver-Haired Legislature, Jim Hine

Texas Silver-Haired Legislature

These documents are from the Texas Silver-Haired Legislation Foundation folder titled Jim Hine. Included are Financial Recommendations from September 8, 2006 for the TSHL Foundation and the TSHL; a letter from A. Campbell, TSHL Comptroller/Strategic Planning, to Members of the Texas Silver-Haired Executive Committee; and a proposal dated 15 July 2005 about the funding of the TSHL Resolution Book.

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Investigation Of The Interaction Of Streptococcus Pneumoniae With Apolactoferrin., Shaper Mirza Jan 2006

Investigation Of The Interaction Of Streptococcus Pneumoniae With Apolactoferrin., Shaper Mirza

All ETDs from UAB

No abstract provided.

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Sacred Swing: The Sacralization Of Jazz In The American Bahá'Í Community, E. Taylor Atkins Jan 2006

Sacred Swing: The Sacralization Of Jazz In The American Bahá'Í Community, E. Taylor Atkins

Faculty Articles, Papers, and Other Scholarship

Much modern jazz performance is imbued with religious significance or “sacred intentionality”, as revealed in the Bahá’í conceptions of jazz as a vehicle for worship and spiritual transcendence. Although earlier generations of believers objected to jazz because of its presumed moral and aesthetic poverty, jazz has become a staple in Bahá’í public culture and proclamation activities, partially due to the influence of prominent jazz musicians who became Bahá’ís, such as Dizzy Gillespie, James Moody, Flora Purim, and Tierney Sutton. Oral history and textual research are used to explore the dialectic between jazz and Bahá’í spiritual teachings and practices, the impact …

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Network And Data Security, Chintan Dalwadi Jan 2006

Network And Data Security, Chintan Dalwadi

All ETDs from UAB

With a growing number of users getting connected to the Internet and given their growing reliance on computers, it has become increasingly important to protect the confidential information stored locally or on the Internet. There are people who greatly under estimate the threats posed in the world of information technology and believe that their identities and information are safe, and of those people who are actually concerned about security, most are unaware of the areas where they can be targeted. It is not surprising that there are very few areas in information technology that have not been compromised. It is …

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The Virtual Dialectic: Rethinking The Matrix And Its Significance, David J. Gunkel Jan 2006

The Virtual Dialectic: Rethinking The Matrix And Its Significance, David J. Gunkel

Faculty Articles, Papers, and Other Scholarship

No abstract provided.

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