Digital Commons Network^™

Spatial Health Indicator Analysis Data Collection Unlv Study, Amelia Gulling, Jeff Greer, Tom Stewart

UNLV Theses, Dissertations, Professional Papers, and Capstones

Southern Nevada Strong (SNS) is a collaborative regional planning project between local public agencies and NGOs throughout the Las Vegas Valley. This project is headed by City of Henderson on behalf of the Southern Nevada Regional Planning Committee. SNS received a $3.5 million Sustainable Community (SC) grant from HUD which is set to expire in 2015. SNS member agencies receive preference for future HUD grants by participating in successful SC grant, which could be considered a motivating factor for participation for outside agencies.

Calibration Of Microscopic Traffic Flow Models Considering All Parameters Simultaneously, Victor Hugo Molano Paz

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study proposes a methodology to calibrate microscopic traffic flow simulation models. The proposed methodology has the capability to calibrate simultaneously all the calibration parameters as well as demand patterns for any network topology. These parameters include global and local parameters as well as driver behavior and vehicle performance parameters; all based on multiple performance measures, such as link counts and speeds. Demand patterns are included in the calibration framework in terms of turning volumes.

A Simultaneous Perturbation Stochastic Approximation (SPSA) algorithm is proposed to search for the vector of the model‟s parameters that minimizes the difference between actual and …

Phosphorus Removal From Ebpr Sludge Dewatering Liquors Using Lanthanum Chloride, Aluminum Sulfate And Ferric Chloride, Michael Strileski

UNLV Theses, Dissertations, Professional Papers, and Capstones

In wastewater treatment, enhanced biological phosphorus removal (EBPR) is becoming an increasingly popular alternative to chemical precipitation (CP) because of its lower costs and reduced sludge production. However, downstream solids handling processes such as digestion, sludge storage and dewatering promote an undesirable release (i.e. secondary release) of polyphosphate that was stored within EBPR sludge. Released phosphate is recycled to the head of the plant with the liquors of sludge dewatering processes. The concentration of phosphate in recycle streams from EBPR systems can be one to two orders of magnitude higher than the influent phosphorus concentration entering the EBPR system. Plants …

Coping With Pediatric Cancer: Conversational Methods Utilized By Parents And Children When Dealing With Pediatric Cancer, Chelsi Morgan Walls

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study analyzed how people perceived parents should communicate with their child regarding pediatric cancer treatments. When dealing with pediatric cancer, it is vital that parents and their child communicate about the illness in order to effectively cope with the cancer. Using Uncertainty Management Theory, appraisals, inferences, and illusions, are examined in this study to discover how much affect-management and buffering would be used to manage the illness. Under UMT, the coping mechanisms of affect-management (i.e., religious coping and behavioral disengagement), and buffering (avoidance and child distraction) depend upon how individuals appraise the uncertain situation (positive vs. negative), the inferences …

Weight Gain In Pregnancy And Pre-Menopausal Breast Cancer: A Population-Based Case-Control Study, Arash Ardalan

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background: The risk of breast cancer increases transiently after pregnancy and then falls to a lower level than for age-matched nulliparous women. Higher levels of estrogen are known as the primary reason. Several pregnancy characteristics are thought to be confounding the above link; however, except for the age at first pregnancy no other pregnancy-related factor has been proved to be significant. Specifically, it has not been established that an excessive weight gain in pregnancy is linked to the maternal risk of breast cancer.

Objectives: To identify independent influence of weight gain in pregnancy on the risk of pre-menopausal breast cancer …

Efficacy Of Gold Silica Nanoshells And Gold Nanorods For Photothermal Therapy Of Human Glioma Spheroids, Suyog Jung Chhetri

UNLV Theses, Dissertations, Professional Papers, and Capstones

Gold-based nanoparticles including gold-silica nano-spheres and gold nano-rods have been investigated for a number of therapeutic and diagnostic applications. The ability of these nanoparticles to convert light into heat energy makes them particularly appealing for photothermal therapy in which cancer cells are destroyed via light-induced heat generation. The overall objective of the study is to compare the efficacy of gold-silica nano-spheres and gold nano-rods in an in vitro system consisting of human brain tumor (glioma) spheroids.

Delivery of the nanoparticles to the spheroids was accomplished using murine macrophages. Nanoparticles (spheres or rods) were incubated with macrophages for 24 hours. Thereafter, …

3d Modeling And Design Optimization Of Rod Shaped Ionic Polymer Metal Composite Actuator, Siul A. Ruiz

UNLV Theses, Dissertations, Professional Papers, and Capstones

Ionic polymer-metal composites (IPMCs) are some of the most well-known electro-active polymers. This is due to their large deformation provided a relatively low voltage source. IPMCs have been acknowledged as a potential candidate for biomedical applications such as cardiac catheters and surgical probes; however, there is still no existing mass manufacturing of IPMCs. This study intends to provide a theoretical framework which could be used to design practical purpose IPMCs depending on the end users interest.

This study begins by investigating methodologies used to develop quantify the physical actuation of an IPMC in 3-dimensional space. This approach is taken in …

An End To End V.M.T Framework With Controlled V.M.T Tax Rate Using Optimal Feedback Control Technique, Pratik Verma

UNLV Theses, Dissertations, Professional Papers, and Capstones

Vehicle Mile Travel (VMT) is a study related to available alternatives for the road

revenue collection system. As per the demand, the existing Gas/Fuel tax based revenue

collection system is not found an appropriate option in the longer run. Due

to existing system constraints like: no eective tax process for vehicles based on alternative

fuel (e.g. electric vehicles), no eective changes in tax due to economical

ination, and more highway expenditure than generated revenue, an alternative revenue

collection mechanism is required. Hence, the objective is to study an alternative

option in detail, which can address the gaps between required revenue …

Estimation Of The Tax Rates Based On Vehicle Miles Traveled Using Stochastic Models, Pratik Verma

UNLV Theses, Dissertations, Professional Papers, and Capstones

In this thesis, we shall study the alternative revenue collection system which is based on the vehicle miles traveled (VMT). In various studies, it has been found that the existing revenue collection system based on gas/fuel tax is not an appropriate option in the longer run. The main reasons include no effective tax process for vehicles based on alternative fuel vehicle, no effective changes in tax due to economical inflation, and more highway expenditure than generated revenue. Our main objective is to estimate the VMT tax rates that should be charged in order to generate same amount of revenue generated …

Stability Aware Delaunay Refinement, Bishal Acharya

UNLV Theses, Dissertations, Professional Papers, and Capstones

Good quality meshes are extensively used for finding approximate solutions for partial differential equations for fluid flow in two dimensional surfaces. We present an overview of existing algorithms for refinement and generation of triangular meshes. We introduce the concept of node stability in the refinement of Delaunay triangulation. We present two algorithms for generating stable refinement of Delaunay triangulation. We also present an experimental investigation of a triangulation refinement algorithm based on the location of the center of gravity and the location of the center of circumcircle. The results show that the center of gravity based refinement is more effective …

Exploring The Relationships Between Rap And Hip-Hop Music Use And Objectified Body Consciousness, Body Dissatisfaction, And Gender Norms In Female Juvenile Delinquents, Nina Simone Brathwaite

UNLV Theses, Dissertations, Professional Papers, and Capstones

Various forms of portable media (e.g., television, movies, magazines, internet, music) are increasingly accessible to and used by the average adolescent in the U.S. (American Psychological Association [APA], 2007; Ward, 2003). Two of the most popular genres of adolescent entertainment, rap and hip-hop music are frequently criticized for their use of misogynistic images and lyrics that objectify women and glorify sex, drug use, and violence (Bretthauer, Zimmerman & Banning, 2006; Conrad, Dixon & Zhang, 2010; Ward, 2003). Although understudied, one could argue that increased accessibility to and use of such media that fosters sexually-explicit and -objectifying messages common in Western …

The Influence Of Person Familiarity On Children's Social Information Processing, Andrew J. Cummings

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study examined the influence person familiarity has on children's social information processing (SIP) choices and emotion recognition. Children in grades 2nd through 5th watch a videotaped expression of a familiar or unfamiliar individual while listening to a hypothetical social interaction. Following the video clip, children responded to open-ended questions and prompted questions designed to assess their strategies and goals in the social interaction. Children also selected from two choices (either `on purpose' or `by accident') for their attribution of the individual's intent. Last, children identified the emotion that they believed the individual in the video was experiencing the most. …

Implementation Of Integrated Project Delivery On Department Of Navy Military Construction Projects, Christopher S. Lee

UNLV Theses, Dissertations, Professional Papers, and Capstones

The concept of the project delivery system refers to the overall processes by which a project is designed, constructed, and/or maintained. There are many different types of project delivery systems to fit particular situations involving the owner and his intended project. The project delivery system is what establishes the framework that enables a construction project to be developed and ultimately executed.

The construction industry has observed that projects (both private and public) frequently suffer from factors such as adversarial relationships, low roductivity, high inefficiency and rework, frequent contractual disputes concerning who was at fault, and lack of innovation. Not only …

Examining The Inner Experience Of Left-Handers Using Descriptive Experience Sampling, Aadee Mizrachi

UNLV Theses, Dissertations, Professional Papers, and Capstones

Research suggests there are anatomical asymmetries of the human brain associated with right-hand or left-hand preference. In addition, left-handedness has been related to a wide range of psychological and physical problems. Despite these relationships, little is known about the inner experience of left-handers.

The present study, a replication of Mizrachi (2010) using a larger sample, used Descriptive Experience Sampling (DES) with three objectives: 1) examine the inner experience of left-handers; 2) compare the results of the present study to the results of Mizrachi (2010); and 3) compare the inner experience of left-handers to that of the general population as reported …

Increasing Choice-Making And Choice Awareness For Students With Intellectual Disability, Shannon Lynn Sparks

UNLV Theses, Dissertations, Professional Papers, and Capstones

A number of studies have suggested that when children with disabilities are presented with choice-making opportunities, they can make choices (Bambara, 2004; Carlson, Luiselli, Slyman, & Markowski, 2008; Dibley & Lim, 1999; Manhertz, 2006). Teaching choice-making to students with intellectual disability is an important skill. Students with intellectual disability, when exposed to choice-making, tend to display these skills in future settings as they grow older (Lee, Palmer, Turnbull, & Wehmeyer, 2006). Choice-making research has been limited for high school students with mild to moderate intellectual disability (Dibley & Lim, 1999; Manhertz, 2006; Shevin & Klein, 2004).

The purpose of this …

Exploring Heterosexist Bias And Oppressive Bullying In Anti-Bullying Prevention Programs, Shayna Yamashiro

UNLV Theses, Dissertations, Professional Papers, and Capstones

Children in the K-12 school environment who identify in the sexually underrepresented groups experience the effects of heterosexism, which is a manifestation of oppressive bullying. This work explores and analyzes the results of Anti-Bullying Prevention Pilot Program (ABPPP) which is a large-scale three-year evaluation. This study analyzed qualitative data (structured interviews) by utilizing a Consensual Qualitative Research (CQR) and Mixed Methods approach to find the emergent theme of heterosexism. Grounded Theory was then used to code that information. This work found thick descriptions which illustrated the presence of heterosexist bias in the qualitative data. Thus, this writer proposes a model …

Utilizing Big Data In Identification And Correction Of Ocr Errors, Shivam Agarwal

UNLV Theses, Dissertations, Professional Papers, and Capstones

In this thesis, we report on our experiments for detection and correction of OCR errors with web data. More specifically, we utilize Google search to access the big data resources available to identify possible candidates for correction. We then use a combination of the Longest Common Subsequences (LCS) and Bayesian estimates to automatically pick the proper candidate.

Our experimental results on a small set of historical newspaper data show a recall and precision of 51% and 100%, respectively. The work in this thesis further provides a detailed classification and analysis of all errors. In particular, we point out the shortcomings …

Dressing Indian: Appropriation, Identity, And American Design, 1940-1968, Alison Rose Bazylinski

UNLV Theses, Dissertations, Professional Papers, and Capstones

This thesis examines the ways the American fashion industry and fashion publications appropriated aspects of Indian cultures as marketing tools from 1940 to 1968 and the ways representations stereotypes created through fashion outlets denoted American and individual, rather than Native, identity. Representational stereotypes created at the turn of the twentieth century provided fashion merchandisers and sellers with a home-grown marketing scheme, while the development of an American fashion industry based on mass-produced, ready-to-wear sportswear led to nation-wide dissemination and use of "Indian" colors, patterns, and designs.

Study Of A Non-Equilibrium Plasma Pinch With Application For Microwave Generation, Ahmad Al Agry

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Non-Equilibrium Plasma Pinch (NEPP), also known as the Dense Plasma Focus (DPF) is well known as a source of energetic ions, relativistic electrons and neutrons as well as electromagnetic radiation extending from the infrared to X-ray. In this dissertation, the operation of a 15 kJ, Mather type, NEPP machine is studied in detail. A large number of experiments are carried out to tune the machine parameters for best performance using helium and hydrogen as filling gases. The NEPP machine is modified to be able to extract the copious number of electrons generated at the pinch. A hollow anode with …

Numerical Modeling Of Heat Pipe Radiator And Fin Size Optimization For Low And No Gravity Environments, Virginia Ruth Bieger

UNLV Theses, Dissertations, Professional Papers, and Capstones

A heat-pipe radiator element has been designed and modeled to study the efficiency of heat transfer for low and no gravity environments, like in lunar environments. The advantages of using heat pipe includes the significant weight reducing and heat transfer efficiency. The heat transfer can be enhanced by the use of condenser sections with attached fins.

A series of various geometries of solid fins and heat pipes with and without fins were modeled using FLUENT®. This was done to determine the validity of using a heat pipe in lieu of a solid fin projection. A heat pipe had a 25 …

Alternations Of Nmda And Gabab Receptor Function In Development: A Potential Animal Model Of Schizophrenia, Monica Bolton

UNLV Theses, Dissertations, Professional Papers, and Capstones

Schizophrenia is a debilitating mental disorder that affects up to 3% of the world population. The behavioral symptoms are categorized into positive and negative symptoms, which appear during late adolescence/early adulthood. Unfortunately, the underlying cellular and molecular mechanisms of the disease are poorly understood. Several hypotheses exist to explain mechanisms contributing to these behavioral alterations. One model proposes that a reduced function of the NMDA glutamate receptor on specific GABAergic interneurons may be responsible for deficits in schizophrenia. Post-mortem investigations provide evidence of reductions in both glutamate and GABA-related proteins in patients with schizophrenia. Further, GABAergic interneurons that are activated …

The Lived Experience Of The Novice Nursing Dean: Exploring The Meaning And Significance, Melissa Rae Bouws

UNLV Theses, Dissertations, Professional Papers, and Capstones

Deans of nursing hold a unique position for the future of the profession. Few others have the potential to bring about change within the academic setting, or hold such a strong influence on the future of nursing and on our students. Current statistics reveal multiple vacancies in nursing dean positions. Further understanding of how nursing deans begin their role, attain their identity as dean, and successfully execute this important position is needed to recruit and retain strong leaders who have the methods and skills to develop and support the advancement of the nursing profession. Understanding the process of becoming nursing …

Paleoecology Of Late Pleistocene Megaherbivores: Stable Isotope Reconstruction Of Environment, Climate, And Response, Aubrey Mae Bonde

UNLV Theses, Dissertations, Professional Papers, and Capstones

Late Pleistocene megaherbivore communities of the Pacific and Mountain West states of California and Nevada are under-analyzed in regard to ecological function (diet, mobility, niche partitioning, and range of ecological tolerance). Stable isotope analysis is a powerful tool that is known to recover primary paleodiet and paleoenvironmental information from biogenic materials, such as enamel and dentin. This dissertation explores the use of carbon and oxygen stable isotopes in Late Pleistocene (40-10 Ka) megaherbivore teeth to gain a better understanding of inter- and intra-specific behavior and reconstruct Late Pleistocene ecosystems of California and Nevada. Radiocarbon dates exist for most of the …

Can State And Local Revenue And Expenditure Enhance Economic Growth? A Cross-State Panel Study Of Fiscal Activity, Christopher Arthur Clarke

UNLV Theses, Dissertations, Professional Papers, and Capstones

The slow economic recovery since the 2008 financial crisis and Great Recession requires state and local governments to continue to make difficult decisions concerning which taxes to raise and which expenditures to decrease in order to maintain a balanced budget. As expenditures usually raise economic growth and taxes generally hinder it, seeking the optimum combination of tax structures and expenditure options is necessary to encourage prosperity in a state. In this paper I study the effects of various expenditures and revenue combinations on growth in state personal income from 1977-2010 for 49 states and the District of Columbia. I find …

The Role Of Body Surveillance, Body Shame, And Body Self-Consciousness During Sexual Activities In Women's Sexual Experience, Kimberly Claudat

UNLV Theses, Dissertations, Professional Papers, and Capstones

Objectification theory is a social constructivist framework that aims to explain how sociocultural and intrapersonal variables impact women's mental health. To date, however, few studies have used an objectification framework to examine the relationship between body image and sexual functioning in ethnically diverse samples of women. Consequently, the present study used the tenets of objectification theory to examine body image and sexuality in women. Specifically, this study investigated the relationships between body surveillance, body shame, body self-consciousness during sexual activities, and sexual satisfaction in American female college students. Participants completed self-report measures of demographic information, body shame, body surveillance, body …

The Impact Of Anti-Byod Policies On Generation Z Hospitality Employee's Engagement, Danny Crinson

UNLV Theses, Dissertations, Professional Papers, and Capstones

As an industry hospitality typically reacts to problems rather than tackling them proactively. One of the greatest problems currently faced by the industry is the low engagement rates across employees. These low levels have been linked to many issues including low morale, productivity and high turnover rates. One way to try to remedy this issue before it worsens would be to look at future hospitality employees and try to understand what will engage them. Doing so will allow human resource leaders to make changes to any polices which currently do not synchronize with these engaging factors. With research suggesting that …

A History And Analysis Of The Works Of Lynn Ahrens And Stephen Flaherty, Matthew Paul Fisher

UNLV Theses, Dissertations, Professional Papers, and Capstones

In the history of musical theatre there have been several celebrated composer-lyricist teams. For over thirty years in the modern era the talents of librettist-lyricist Lynn Ahrens and composer Stephen Flaherty have been heard on stage, in movies, and on television, both in collaboration with others and together. When they formed their professional partnership in 1983 they made a team that would give modern musical theatre its most unique pairing. Their work is not easy to identify. Their source materials vary greatly from show to show and the musical style is never the same. With their level of output, talents, …

Investigation Of Storage-Phosphor Autoradiography For The Rapid Quantitative Screening Of Air Filters For Emergency Response Purposes, Athena Marie Gallardo

UNLV Theses, Dissertations, Professional Papers, and Capstones

Past nuclear accidents, such as Chernobyl, resulted in a large release of radionuclides into the atmosphere. Radiological assessment of the vicinity of the site of the incident is vital to assess the exposure levels and dose received by the population and workers. Therefore, it is critical to thoroughly understand the situation and risks associated with a particular event in a timely manner in order to properly manage the event. Current atmospheric radiological assessments of alpha emitting radioisotopes include acquiring large quantities of air samples, chemical separation of radionuclides, sample mounting, counting through alpha spectrometry, and analysis of the data. The …

A Multiple Case Study Of Gay Teacher Identity Development: Negotiating And Enacting Identity To Interrupt Heteronormativity, Zaid Mashhour Haddad

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this multiple case study is to examine how the negotiation and enactment of gay teacher identity interrupts heteronormativity in school contexts. This study utilizes a conceptual framework that incorporates an understanding of teacher identity negotiation in terms of gay identity development (Cass, 1979) and the Multicultural Enactment-Transactional Model (Cross, 2012). This framework also examines a teacher's perceptions about the school context in terms of identity-based motivation (Oyserman & Destin, 2010) and a relational justice perspective (Poole, 2008).

This study theorizes that the heteronormative nature of schooling is a limiting factor for gay teachers abilities' to work and …

Testing A Reflection Education Intervention On Baccalaureate Nursing Students' Level Of Reflection During Online Clinical Post Conference, Jaime Alicia Hannans

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background

The majority of faculty-student interactions are at low cognitive levels during nursing clinical post conference (CPC), a time often utilized for reflective thinking. Strategies have been implemented to promote or even teach reflection, but the level of reflection or impact of the intervention in nursing, such as the relationship to student attributes or clinical reasoning, is often not evaluated.

Specific Aims

The specific aims of this study are to (a) test the effect of a reflection education intervention on the baccalaureate students' level of reflection during online CPC, (b) examine the relationship between student attributes and level of reflection, …