Digital Commons Network^™

Change Of Venue: An Exploratory, Multistage Evaluation That Examines The Impact Of Change Based On The Shared Experiences Of The Toe Tag Monologues, Lisa Ann Baaske

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study determined how Vision Theatrical Foundation addresses the needs of troubled and traumatized local youth. I wanted to see if their services and interventions had an impact and if that impact resulted in a change and/or an improved quality of their lives. In addition, I wanted to see if the impact improved mental health literacy. This is a mixed-method, convergent, multistage, process and impact evaluation. An exploratory process evaluation was conducted on the organization utilizing SAMHSA’s Process Evaluation to Monitor Program Implementation (SAMHSA, 2018), which assesses five key questions about the program. The strengths and weaknesses of the organization …

The Relationship Between Tree Canopy And Social Capital On Physical Activity In Unlv Students, Melissa Bartshe

UNLV Theses, Dissertations, Professional Papers, and Capstones

Despite the numerous health benefits, rates of physical activity are low, especially among the college student population. Neighborhood tree canopy is one aspect of the built environment that has been shown to positively impact physical activity. Social capital has also been correlated with higher rates of physical activity. The sprawling urban design and arid desert climate of Las Vegas pose unique challenges to both tree canopy and social capital. Additionally, the relationship between tree canopy, social capital, and physical activity is understudied in the college student population. The purpose of this study was to assess the relationship of tree canopy …

Assessing The Health And Financial Burden Of Neonatal Abstinence Syndrome Among All Payer Inpatient Pediatric Discharges In Nevada, Kavita Batra

UNLV Theses, Dissertations, Professional Papers, and Capstones

Neonatal abstinence syndrome (NAS) is a postnatal withdrawal syndrome among neonates born to drug-dependent mothers. NAS poses a significant health and fiscal challenge nationally, with its incidence increasing by a factor of six (1.20 to 6.7 per 1,000 hospital births/year) along with the concomitant rise in health care cost from 2000-2016. Besides national data, it is critical to quantify NAS at the state-level to identify the target areas for prevention. Given the higher opioid prescribing rates among pregnant women in Nevada, it is critical to assess the health and financial magnitude of NAS in the state. The objectives of this …

Oral Localization Of Scardovia Wiggsiae, Graydon Ramos Carr

UNLV Theses, Dissertations, Professional Papers, and Capstones

Early childhood caries is one of the most prevalent diseases in the United States among children. The formation of caries is a complex, multifactorial process that is still being studied. Researchers have thought for years that Streptococcus mutans was the primary causative agent of early childhood caries. The recent discovery of a novel cariogenic pathogen, Scardovia wiggsiae and its significant contribution to the etiology of early childhood caries has led oral health researchers to re-evaluate this microorganism and its link to this disease. While there have been several projects undertaken within the University of Nevada, Las Vegas School of Dental …

Utilizing Breathing Techniques To Maximize Training Performance, Peyton Cater

UNLV Theses, Dissertations, Professional Papers, and Capstones

Anaerobic exercise causes metabolic acidosis to occur in the muscle, which is unfavorable for sustaining high intensity activity, as fatigue starts to set in. In order to compensate for the onset of fatigue produced by an acidic environment, respiratory alkalosis, induced by hyperventilation, can be performed to mitigate these effects. In contrast, research has shown that slowing down the breath rate, such as a two second inhale and three second exhale, has led to an increase in performance outcomes. Purpose: To investigate power output and the physiological responses after implementation of different breathing techniques during the recovery periods of intermittent …

Transitioning For Success: A Pilot Program For New Nurse Graduates In A Pediatric Intensive Care Unit, Valerie Charisa Barboa

UNLV Theses, Dissertations, Professional Papers, and Capstones

Global nursing shortages, increasingly complex patients, and rapidly evolving medical knowledge and technology make it necessary for today’s new graduate nurse (NGN) to enter practice with an already well developed set of skills (clinical judgment, technical skills, and a sound knowledge base). The protracted nursing shortage has prompted health care organizations to hire NGN’s directly into intensive care units (ICU), a rare, and previously unheard-of occurrence. Many NGN’s are unprepared for the highly complex, critically unstable patient in the ICU or the fast paced, independent, yet simultaneously collaborative nature of the ICU workplace. These deficits can quickly compromise patient safety …

Machine Learning For Prediction Of Trabecular And Cortical Bone Mineral Density, Partha Chudal

UNLV Theses, Dissertations, Professional Papers, and Capstones

Osteoporosis becomes very common problem for people after a certain age, which results in fragility fractures without any previous symptoms. One of the primary predictors of osteoporosis is bone mineral density (BMD). BMD is the mineral content of bone, at the optimal levels, that makes the bone strong enough to bear the regular load and elastic enough to handle the irregular twisting load. Two of the major parts of the bone that help to acquire such property are trabecular and cortical bone. This thesis focuses on predicting the BMDs of trabecular and cortical bone for men. For this purpose we …

Assessing The Cost-Benefit Of Hiring A Deu-Prepared Rn Graduate: Does It Help Reduce Organizational Costs?, Tonya D. Bryant

UNLV Theses, Dissertations, Professional Papers, and Capstones

Costs associated with training new nurses from the time of hire to the time of independent practice can cost organizations nearly $100,000 per nurse (Acuna, Yoder, Madrigal-Gonzalez & Yoder-Wise, 2017; Silvestre, Ulrich, Johnson, Spector, & Blegan, 2017; Trepanier, Early, Ulrich & Cherry, 2012). New-hire costs for a dedicated education unit (DEU)-prepared newly qualified newly hired nurse (NQNHN) may be prohibitive for some hospitals when considering the cumulative amount of time and costs dedicated to training these specially prepared nurses who have previous clinical and organizational experience from their time as nursing students within the organization over the duration of their …

Do Compression Garments Work? The Effect Of Compression Garments On Biomechanical And Physiological Factors, Andrew Craig-Jones

UNLV Theses, Dissertations, Professional Papers, and Capstones

New and innovative technology is consistently being introduced to help runners gain an edge over their competition. One of the more popular ergogenic aids in running today is compression garments. It is estimated that the compression garment market will surpass $5 billion by the year 2022. Despite the popularity, there is no clear consensus as to if or why compression is effective as an ergogenic aid. Although there has been a large variety of variables tested, there is little agreement on any of them as to the effect compression has. It appears as if the rate at which compression is …

A Framework For Vector-Weighted Deep Neural Networks, Carter Chiu

UNLV Theses, Dissertations, Professional Papers, and Capstones

The vast majority of advances in deep neural network research operate on the basis of a real-valued weight space. Recent work in alternative spaces have challenged and complemented this idea; for instance, the use of complex- or binary-valued weights have yielded promising and fascinating results. We propose a framework for a novel weight space consisting of vector values which we christen VectorNet. We first develop the theoretical foundations of our proposed approach, including formalizing the requisite theory for forward and backpropagating values in a vector-weighted layer. We also introduce the concept of expansion and aggregation functions for conversion between real …

Investigating Attitudes And Beliefs Of University Students Aged 18 To 24 Years That Influence Their Decision To Take Pre-Exposure Prophylaxis Medication, Philip Danquah

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background: Contemporary research findings affirm that young adults aged 18 to 24 years have high prevalence of new HIV infections. Pre-Exposure Prophylaxis (PrEP) medication is the latest strategy in HIV prevention. Rates of PrEP uptake or use have been negligible among university students aged 18 to 24 years, especially among racial and ethnic minority students.

Objective: The objective of this study is to investigate the attitudes and beliefs that influence the uptake of PrEP medications and the HIV risk behaviors associated with the willingness to take PrEP medications among university students aged 18 to 24 years attending the University of …

Chemical And Electronic Surface Structure Of Chalcopyrite-Based Thin Films For Solar Water Splitting, James C. Carter

UNLV Theses, Dissertations, Professional Papers, and Capstones

In recent years, various thin film solar devices have reached markedly high efficiencies on both the laboratory and large area scale. To further evaluate their potential, and help drive device optimization of efficient solar devices, a detailed understanding of the chemical and electronic structure of the surfaces and interfaces is required. It is these interfaces that play a pivotal role in dictating aspects of device performance. Chalcopyrite-based materials, such as Cu(In,Ga)S2 (CIGS) are regarded as one of the most promising absorber materials for use in highly efficient solar devices. In the context of photoelectrochemical (PEC) hydrogen generation, the tunability of …

3d Upper Airway Analysis Of Skeletal Class I, Ii, And Iii Adults With High Or Low Risk For Excessive Daytime Sleepiness, Alexander Dao

UNLV Theses, Dissertations, Professional Papers, and Capstones

Objective: To investigate the differences in ethnicity, BMI, sex, total airway volume, minimum cross-sectional area, airway shape, and hyoid bone position in high risk for excessive daytime sleepiness vs low risk for excessive daytime sleepiness in skeletal class I, II, and III patients

Introduction: Obstructive Sleep Apnea (OSA) is an underdiagnosed medical condition with many negative consequences on a patient’s overall health (Dempsey, J.A., Veasey, S.C., Morgan, B.J., & O’Donnell, 2010). OSA is defined as the occurrence of at least 5 instances per hour of sleep during which breathing temporarily stops (Motamedi, McClary, & Amedee, 2009). Undiagnosed OSA could lead …

The Fabric Of Civil War Society: The Effect Of Uniforms, Badges, And Flags, 1861 To 1939, Shae Cox

UNLV Theses, Dissertations, Professional Papers, and Capstones

The story of the American Civil War is usually told though a chronological framework and the author typically selects an event or place for focus, but this dissertation uses the lens of uniforms, flags, and post-war badges to travel through chronology and highlight new negotiations of well-known stories. While uniforms might just seem to be articles of clothing to wear on the battlefield, both the Union and the Confederacy used uniforms and flags as specific representations of identity during and after the war to present their “true history.” Citizens and veterans from the former Union used the uniforms and the …

Can Desert Mosses Hide From Climate Change? The Ecophysiological Importance Of Habitat Buffering & Water Relations To A Keystone Biocrust Moss In The Mojave Desert, Theresa Ann Clark

UNLV Theses, Dissertations, Professional Papers, and Capstones

Empirical and observational studies suggest a keystone biocrust moss, Syntrichia caninervis, may be sensitive to future climate change in the American Southwest due to its uniquely sensitive water relations that appear particularly challenged during summer hydration-desiccation cycles. However, the potential mitigating roles of habitat buffering, acclimatization, and winter recovery on the vulnerability of this species remain largely unexplored. I investigated potential abiotic and biotic resiliency factors driving summer stress resistance and recovery in S. caninervis along present-day aridity gradients in the Mojave Desert to strengthen the climate change vulnerability assessment for this species common to biocrusts of North America, northern …

Uncertainty Quantification For Maxwell's Equations, Zhiwei Fang

UNLV Theses, Dissertations, Professional Papers, and Capstones

This dissertation study three different approaches for stochastic electromagnetic fields based on the time domain Maxwell's equations and Drude's model: stochastic Galerkin method, stochastic collocation method, and Monte Carlo class methods. For each method, we study its regularity, stability, and convergence rates. Numerical experiments have been presented to verify our theoretical results. For stochastic collocation method, we also simulate the backward wave propagation in metamaterial phenomenon. It turns out that the stochastic Galerkin method admits the best accuracy property but hugest computational workload as the resultant PDEs system is usually coupled. The Monte Carlo class methods are easy to implement …

Escaping Time: Messiaen’S Musical Language, Religious Symbolism, And Undermining Time In Quatour Pour La Fin Du Temps, Sarra Elizabeth Hey-Folick

UNLV Theses, Dissertations, Professional Papers, and Capstones

Scholars, including Robert Fallon and Wilfred Mellers, understand Olivier Messiaen’s Quatour pour la fin du Temps through the lens of war and captivity. Written during Messiaen’s imprisonment in the German prisoner of war camp Stalag VIII A during World War II, Quatour portrays the biblical “end of time” described in the book of Revelations. Messiaen drew connections between Quatour and the apocalypse with references to the angel of the apocalypse, the abyss, and the end of time. Messiaen, along with Étienne Pasquier, Jean Le Boulaire, and Henri Akoka premiered Quatour on January, 15th 1941, for their fellow prisoners and guards …

The Child Dreams: An Examination Of Gil Shohat’S Adaptation Of Hanoch Levin’S Play, Karin Hochman

UNLV Theses, Dissertations, Professional Papers, and Capstones

On January 18, 2010, Gil Shohat's operatic adaptation of Hanoch Levin's 1993 play, The Child Dreams, had its world premiere at the Israeli Opera. The opera was commissioned for the opening of that company's twenty-fifth season. Levin's play holds a central place in Israeli culture; given the play's stature, Shohat's musical work raises a number of essential questions about adaptations and their consequent reception. This document will examine the critical perception of the effort: did the critics reviewing the production understand Shohat's intentions and did they "read" the work in the same way that he did?

We possess a wealth …

Examining The Factor Structures Of The A-Des And Ptci To Identify Unique Predictors Of Ptsd Symptom Clusters In Maltreated Youth, Amanda Howard

UNLV Theses, Dissertations, Professional Papers, and Capstones

Research on childhood posttraumatic stress disorder (PTSD) has increased over the past decade. Youth who experience maltreatment are more likely to exhibit symptoms of PTSD. At present, the literature largely focuses on youth who have experienced general trauma or PTSD symptoms, while maltreated youth are understudied. To date, no studies have examined the psychometric properties of the Adolescent Dissociative Experiences Scale (A-DES) or the Posttraumatic Cognitions Inventory (PTCI) in a sample of maltreated youth. Predictors of childhood PTSD for maltreated youth remain unknown. The present study was the first research study to date to examine the factor structures of the …

The Implementation Of A Respiratory Syncytial Virus Prevention And Awareness Pamphlet In The Daycare Setting, Kaylie Marie Humphreys

UNLV Theses, Dissertations, Professional Papers, and Capstones

Respiratory Syncytial Virus (RSV) is the number one cause of bronchiolitis in children under five years of age and regretfully the number one cause of hospitalization in the first year of life. RSV leads to over three million hospitalizations, two million outpatient visits, and 200,000 deaths in the pediatric population globally each year. While no vaccine is currently available to prevent the spread of RSV, efforts must be shown in spreading awareness of strategies utilized in infection prevention such as hand hygiene and properly covering a cough or sneeze.

This project aimed to present this education to a target population …

Analysis Of Palatal And Upper Airway Dimensions In Patients With Excessive Daytime Sleepiness: A Retrospective Cone-Beam Computed Tomography Study, Daniel Jarrett

UNLV Theses, Dissertations, Professional Papers, and Capstones

Excessive Daytime Sleepiness (EDS) is the measure of ones propensity to fall asleep during normal daily activities. It has been reported in 20%-50% of adults in the United States and is the most frequent symptom of patients presenting to sleep clinics. EDS is the result of both primary hypersomnias such as narcolepsy and idiopathic hypersomnia and, more commonly, secondary hypersomnias such as sleep deprivation, psychiatric conditions, medications, illegal substances, and obstructive sleep apnea (OSA).

The etiology of OSA is multifactorial. Collapsibility of the upper airway is influenced by both neuromuscular tone and craniofacial anatomy. Common predisposing factors for small airways …

Creating A Structural Empowerment Culture: A Professional Development Module For The Novice Nurse Leader, Beth A. Hock

UNLV Theses, Dissertations, Professional Papers, and Capstones

Nursing leadership shoulders the responsibility for the performance of their nurses (McNeeseSmith, 1992). When a nurse leader creates a culture of structural empowerment, the work environment is more likely to produce higher quality patient outcomes and highly satisfied healthcare consumers. Novice nurse leaders are often ill-equipped early in their careers to forge a structural empowerment culture. Unfortunately, education programs to address the developmental needs related to structural empowerment do not seem to exist. Incorporating the theoretical underpinnings from Kanter theory (1977, 1993) and the Donabedian model (1966) to create an educational tool for the novice nurse leader in learning how …

An Investigation Of White-Collar Criminal Sentencing Disparities In Six Federal District Courts, Lauren Frances Elizabeth Galloway

UNLV Theses, Dissertations, Professional Papers, and Capstones

Since the turn of the century, sentencing research has consistently shown that certain aspects of the social context generally condition individual-level sentencing variations. I further explore this postulation in assessing how legal changes affect courtroom decisions; and in analyzing how extra-legal offender characteristics and judicial attributes influence the likelihood and length of white-collar incarceration sentences. The study hypothesized an emergent sociotemporal trend, largely driven by implementation of white-collar sentencing legislation and a return to judicial discretion, whereby white-collar offenders sentenced in the years post-Booker would receive more lenient punishments (i.e., less likely to be incarcerated and shorter incarceration sentences) than …

3-D Silk Fibroin Porous Particles Created By The Ouzo Effect For Biomedical Applications, Ashley Nicole Lamb

UNLV Theses, Dissertations, Professional Papers, and Capstones

Due to its high biocompatibility and biodegradability, silk fibroin – produced from

Bombyx mori (B. mori) cocoons – has been at the forefront of research for many

biomedical application formats: hydrogels, films, microspheres, and porous

sponges/scaffolding, to name a few. For drug delivery, in particular, porous particles are

desirable for their large surface area, uniform and tunable pore structure, and high

porosity. This thesis focuses on the fabrication of porous particles from silk fibroin by the

very interesting Ouzo effect. The Ouzo effect, so named because of the Greek

beverage ouzo, describes the phenomenon of an ethanol + anethole oil …

Remote Radiation Sensing Using Robotic Platforms, Monia Kazemeini

UNLV Theses, Dissertations, Professional Papers, and Capstones

Remote sensing of ionizing radiation has a significant role in waste management, nuclear material management and nonproliferation, radiation safety, and accident response in situations such as the Fukushima nuclear power plant accident. Robotic platforms are able to surpass the number of tasks that could be achieved by humans. With the use of robots, the operator’s radiation exposure can be considerably decreased. Remote sensing allows for the evaluation and monitoring of radiological contamination in hazardous and hard to reach areas and locating radiation sources. In this work, gamma-ray and neutron sensors were integrated onto the unmanned aerial systems (UAS) making it …

Physical Therapy Nontreatment Events With Primary Physical Therapist, Stephen Johnson

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background: Physical therapy improves prognosis reduces stay and is generally helpful in aiding recovery from a wide range of ailments. Nontreatment rates occur for multiple reasons and are also related to the personalities of physical therapists.

Methods: We used data from a research project involving physical therapy at an acute care facility in our community. Our study focused on the retrospectively determined primary physical therapist for each patient. We used the chi-squared tests to compare nontreatment rates between days of the week and disease type and the reasons for nontreatment events. Repeated-measure models were used to evaluate the effect of …

A Comparison Of Orthodontic Intraoral Scan Results Between Staff And Volunteers, Andrew Lee

UNLV Theses, Dissertations, Professional Papers, and Capstones

Objective: This pilot study is the first to assess and compare a trained staff’s intraoral scan to a clinical examination by comparing the overbite, overjet, Angle canine and molar classification, and gingival health. The second part of this study is to determine if the self-scan scan from a patient is as reliable to the staff’s scan. Introduction: Orthodontic treatment is usually provided over a sequence of appointments. During each appointment, the doctor clinically evaluates the patient, analyzes the progress and provides adjustments to continue with the treatment. The most common clinical criteria evaluated are overbite, overjet, upper and lower midlines, …

The Musical Style And The Cultural Connotation Of Bright Sheng's Opera 'Dream Of The Red Chamber', Xirui Huang

UNLV Theses, Dissertations, Professional Papers, and Capstones

When people speak about the book Dream of the Red Chamber, their hearts soften. This novel is one of the Four Great Classical Novels in China, and the best-known one. Commissioned by the former director of San Francisco Opera David Gockley, the composer Bright Sheng and the librettist David Henry Hwang adopted the novel into the opera version of Dream of the Red Chamber. Since it premiered at San Francisco Opera house in September of 2016, there is no doubt that the opera was aimed for the Western opera audiences. The original book Dream of the Red Chamber is a …

Partitioning The Mechanical Cost Of Human Walking: Unveiling Cost Asymmetries For Bionic Technologies, Michael Richard Isaacs

UNLV Theses, Dissertations, Professional Papers, and Capstones

Biomechanics studies over the past 150 years, suggest that animals, including humans, move at speeds that “optimize” their cost of transport. These optimizations can be metabolic, mechanical, or a mixture of the two; however, the consensus on the relationship between metabolic and mechanical cost has been muddied by our current conceptualizations of mechanical cost. Our prior considerations in assessing mechanical cost of transport for animal locomotion often rely upon the exchange of potential and kinetic energy for a rising and falling center of mass that is supported by rigid legs. As a result, our understanding of the mechanical costs associated …

The Relation Between Positive Stereotypes, Negative Stereotypes, And Discriminatory Behavior Toward Hispanic And White Populations, Aileen Ynez Lovitt

UNLV Theses, Dissertations, Professional Papers, and Capstones

Research examining positive stereotypes has suggested a possible connection between positive stereotype endorsement and prejudice. This literature, however, has not investigated the relation between positive and negative stereotypes endorsement. Additionally, the combined impact of positive and negative stereotype endorsement predicting prejudice or discrimination has not been considered. Two studies were conducted to address the limitations in past research and gain a better understanding of positive stereotypes relating to behaviors toward out-group racial groups using Hispanic and White participants. Positive stereotypes endorsement was hypothesized to be positively associated with negative stereotype endorsement and was expected to increase the predicted power of …