Digital Commons Network^™

Stone Bouquets, Angelo Santino Ligori

UNLV Theses, Dissertations, Professional Papers, and Capstones

The groundwork for Stone Bouquets was laid out in Donald Revell’s Poetry Forms: American Sublime course during the spring 2017 semester, resulting in a thirty-page chapbook exploring syllabic ecstasy through highly-compressed, experimental, and minimalist forms. Out of this work, the lines “stone / bouquets” prompted the questions: If a poem could be chiseled in––or out of––a block of stone, then how can that process––the work, diligence, and measurement put into each vowel, word, and line––be contextualized into a poem on the page? And if so, how can it be both seen and heard simultaneously? How are the fragments to be …

Utilization Of Remote Sensing Data For Estimation Of The Groundwater Storage Variation, Gaurang Mistry

UNLV Theses, Dissertations, Professional Papers, and Capstones

Groundwater is the most extracted raw material, with an average withdrawal rate of 982 km3 per year, where 70 percent of the total groundwater withdrawn is used for agriculture globally (Margat & van der Gun, 2013). With climate change and increased water demands in recent years, monitoring the changes in the groundwater storage is of the utmost importance. This thesis presents an analysis that determines the rates, trends, and directions where groundwater storage is going in Pakistan. It also correlates fluctuations in groundwater storage with variations in precipitation and agricultural productivity in the country. The overall objectives of this thesis …

Wearable Technology Devices: Heart Rate And Step Count Analysis, Jeffrey Montes

UNLV Theses, Dissertations, Professional Papers, and Capstones

The overarching purpose of this dissertation was to evaluate and analyze heart rate and/or step count measurements for six popular wearable technology devices: the Samsung Gear 2, FitBit Surge, Polar A360, Garmin Vivosmart HR+, Leaf Health Tracker, and the Scosche Rhythm+ in four separate conditions: free motion walking, free motion jogging, treadmill walking, and treadmill jogging. The four studies presented here utilized one test design and data collection protocol in which many measurements could be addressed simultaneously. Currently, there is no accepted standardized protocol to evaluate wearable technology devices. The test design utilized for this research series was introduced as …

Nonstate Actors And International Law: Just War Theory Or The Universal Declaration Of Human Rights?, Jason Lee Mitchell

UNLV Theses, Dissertations, Professional Papers, and Capstones

There is a debate taking place within the global war on terror (GWT), and its legal and moral parameters are established by two basic arguments. The first is that “Citizens who associate themselves with the military arm of the enemy government, and with its aid, guidance and direction enter this country bent on hostile acts are enemy belligerents within the meaning of the Hague Convention and the law of war” (Ex parte Quirin, 37). The second is that an “Enemy combatant” is a general category that subsumes two sub-categories: lawful and unlawful combatants. The conclusion as it currently stands is …

Opportunities And Challenges Of Modular Construction In A Hospitality Centric Environment, Shreyansh Paliwal

UNLV Theses, Dissertations, Professional Papers, and Capstones

Modular construction techniques can substantially decrease project schedules and costs, effectively maintaining or increasing the quality of an end product by shifting a percentage of site-based work to an off-site fabrication shop. Modular construction can also significantly contribute to sustainability by reducing site disruption, reducing waste generated, creating better relocatability and reusability, causing less dust and noise pollution, and reducing the probability of loss, theft, and damage to equipment. The primary goal of this research is to identify the opportunities and challenges of implementing modular construction techniques in a hospitality-centric environment, by investigating the current situation and characteristics of modular …

Benchmarking Permutation Flow Shop Problem: Adaptive And Enumerative Approaches Implementations Via Novel Threading Techniques, Hari Prasad Sapkota

UNLV Theses, Dissertations, Professional Papers, and Capstones

A large number of real-world planning problems are combinatorial optimization problems which are easy to state and have a finite but usually very large number of feasible solutions. The minimum spanning tree problem and the shortest path problem are some which are solvable through polynomial algorithms. Even though there are other problems such as crew scheduling, vehicle routing, production planning, and hotel room operations which have no properties such as to solve the problem with polynomial algorithms. All these problems are NP-hard. The permutation flow shop problem is also NP-hard problem and they require high computation. These problems are solvable …

A Group Development Program Based On Transformational Leadership To Improve Team Performance, Anne-Marie Schenk

UNLV Theses, Dissertations, Professional Papers, and Capstones

As reimbursement models move from volume-based to value-based, organizations increasingly depend on meeting patient outcome goals in order to achieve their budgetary targets. Leadership teams are a vital part of healthcare organizations and their performance is crucial to the overall organization’s performance. The organization of interest saw a group of strong individual leaders struggle with outcome production due, in part, to overall team dysfunction. To address this need, this DNP project is a group development program, based on the concepts of transformational leadership. As functional groups and transformational leaders are known to drive outcomes, when implemented, this program’s goal is …

Prevalence And Use Of High-Fidelity Simulation In Family Nurse Practitioner Programs, Christina Rosa Pendrak Pepin

UNLV Theses, Dissertations, Professional Papers, and Capstones

Family nurse practitioner (FNP) programs represent almost 60% of all accredited primary-care NP programs in the U.S. in 2015. Increased enrollments and creation of new NP programs has led to a shortage of appropriate clinical sites and the increased competition for quality clinical sites. FNP programs have turned towards utilizing innovative ways to address this shortage including the use of high-fidelity simulation. However, a lack of literature supports substituting traditional clinical hours with high-fidelity simulation. Only 45 articles were found over a 35-year period describing the use of high-fidelity simulation in an FNP program and of those published since 2014, …

Estimation Of Stage-Area-Storage Relationships In Reservoirs And Stage-Discharge Relationships In Rivers Using Remotely Sensed Data, Sailuj Shakya

UNLV Theses, Dissertations, Professional Papers, and Capstones

This thesis estimates the relationships between the water surface levels and quantities of water in reservoirs and rivers using remotely sensed data without any field measurements. However, the accuracies of the estimates were validated using the field measurements from ground stations. The relationships between the water surface levels and quantities are fundamental for monitoring water quantities for the operation of hydraulic structures, as well as analyzing variability and changes in hydrology. Accessibility and transparency are big issues in establishing a monitoring system that can provide field validation of efforts to model global climate systems. Remote sensing has a capability of …

Trends In The Rate Of Inpatient Pediatric Bipolar Disorder Diagnosis Between 1996 And 2015, Samantha Sherwood

UNLV Theses, Dissertations, Professional Papers, and Capstones

The rate of PBD in the U.S. increased dramatically between the mid-1990s and mid-2000s resulting in concern regarding the potential for misdiagnosis of PBD. However, given that the rate of PBD diagnosis had not been examined in the U.S. since 2004, the longitudinal trajectory of PBD diagnosis subsequent to the mid-2000s was unclear. Therefore, the present study utilized two datasets of administrative billing claims to assess whether longitudinal changes in the rate of inpatient PBD diagnosis continued to occur subsequent to 2004. Study 1 utilized a nationally representative dataset of inpatient psychiatric hospitalizations between 1996 and 2010. De-identified data were …

Elucidating The Lasting Influence Of Early Pubertal Timing On Disordered Eating Symptoms, Megan Marie Shope

UNLV Theses, Dissertations, Professional Papers, and Capstones

Objective: Extant data indicate that girls who mature earlier than their peers are at increased risk for disordered eating symptoms. Nonetheless, whether early pubertal timing exerts differential effects across key disordered eating symptoms (e.g., body weight/shape concerns vs. binge eating) and whether pubertal timing effects are present after the completion of puberty (i.e., in adulthood) remains relatively unclear. Additionally, leading theories posit that pubertal increases in adiposity and psychosocial factors (e.g., perceived pressures for thinness) likely underlie the predictive effects of earlier maturation on disordered eating risk, yet few studies have empirically tested this possibility. The current study aimed to …

Cesium Platinum Iodide Perovskite Synthesis, Development And Application In Photovoltaic Devices, Dakota Schwartz

UNLV Theses, Dissertations, Professional Papers, and Capstones

Third generation photovoltaics, including perovskites, are essential to improving solar technology for widespread future use. Perovskite solar cells have surpassed 23.7% power conversion efficiency, comparable to traditional silicon photovoltaic panels. However, these perovskites are fabricated using lead-based compounds, posing toxicity issues. Furthermore, existing perovskites have limited thermal and moisture stability in ambient environments. In order to address toxicity and stability concerns, as well as to maximize photon absorption in solar cells through bandgap optimization, this effort focuses on the development of novel leadfree perovskite materials. A cesium platinum iodide composition is selected as a model system due to the theoretical …

A Guide For Outcomes Evaluation And Sustainability Of A Dedicated Education Unit Within An Academic-Practice Partnership, Jennifer Pfannes

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Dedicated Education Unit (DEU) has emerged as an innovative approach to providing a positive, high-quality, collaborative clinical learning environment that fosters the growth and learning of undergraduate nursing students. Additionally, the DEU model has demonstrated success in beginning to bridge the education-practice gap, tackling the faculty shortage, and easing the new graduate transition from education to practice; however, developing, evaluating and sustaining an economically successful DEU takes thoughtful,

strategic planning. The challenging nature of developing and sustaining a DEU that mutually benefits both the academic and clinical partner over time, reveals the need for more guidance to secure long-term …

Multi-Resolution Spatio-Temporal Change Analyses Of Hydro-Climatological Variables In Association With Large-Scale Oceanic-Atmospheric Climate Signals, Kazi Ali Tamaddun

UNLV Theses, Dissertations, Professional Papers, and Capstones

The primary objective of the work presented in this dissertation was to evaluate the change patterns, i.e., a gradual change known as the trend, and an abrupt change known as the shift, of multiple hydro-climatological variables, namely, streamflow, snow water equivalent (SWE), temperature, precipitation, and potential evapotranspiration (PET), in association with the large-scale oceanic-atmospheric climate signals. Moreover, both observed datasets and modeled simulations were used to evaluate such change patterns to assess the efficacy of the modeled datasets in emulating the observed trends and shifts under the influence of uncertainties and inconsistencies. A secondary objective of this study was to …

Assessing Simulated Transmissivity In Numerical Flow Models Of Complex Hydrogeology, Afan Tarar

UNLV Theses, Dissertations, Professional Papers, and Capstones

Accurately extracting a meaningful transmissivity, a target value within one order of magnitude of field estimates, in numerical models poses a significant challenge when modeling complex groundwater systems. Aquifer transmissivity is directly proportional to the aquifer thickness and the estimated aquifer hydraulic conductivity. In complex geologic conditions (especially in fractured systems) with multiple heterogeneous and anisotropic hydrogeologic units, transmissivity can vary over several orders of magnitude.

To extract a meaningful value of transmissivity from a numerical model, a simple five-layer MODFLOW model was constructed. Each layer in the model was assigned a fixed hydraulic conductivity and thickness. The model simulates …

Optimizing Cycle Exercise Performance During Normobaric Hypoxia Exposure, Cierra Brittany Ugale

UNLV Theses, Dissertations, Professional Papers, and Capstones

Introduction: The purpose of the present study was to examine whether implementing factors of OPTIMAL Theory: Enhanced Expectancies (EE), Autonomy Support (AS), and External Focus (EF) during a cycle exercise bout at a simulated altitude of 21,000 feet elevation had an effect on exercise performance and EPOC response in comparison to a control condition.

Methods: Sixteen participants (n = 8 women, n = 8 men) completed resting oxygen measurements (resting metabolic rate) between 6:00 A.M. and 8:00 A.M. Cycle exercise to fatigue at a constant workload was performed (100 W) while breathing air with reduced oxygen content to simulate exercising …

Beyond Genetics: Addressing Activity In Microbial Ecology, Scott Christopher Thomas

UNLV Theses, Dissertations, Professional Papers, and Capstones

The field of microbial ecology is on the cusp of another revolution, one that uses synergy to address the limitations of previous studies. My dissertation is representative of the new era of research to come, through combining the latest technological advances with established classical methods to provide a more complete understanding of microbial ecosystems. In my first study, I evaluate the conservation of central carbon metabolic pathways and activity along a temperature and diversity gradient (60-95 ℃) through the use of 16S rRNA gene amplicon data, metagenome sequencing, and position-specific 13C-labeled metabolite probing. In my second study, I provide the …

The Ruins Of Doves, Mariah Tahera Yusofzei

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Ruins of Doves is a collection of 40 poems that attempts to access the conversational space for the poet’s encounters with her environment, and correspondingly, with the divine. Keeping with this sentiment, each poem embodies a little song or prayer, where the poem itself acts as a gateway in attempting to understand the divine. Amid the quietness in the space of the poem is where the poet explores her relationship with the divine. An understanding of community, domestic love, and intimacy share a point of arrival where many of the poems begin. Each poem is an accumulation and a …

Studies Of Inner-Shell Chemistry Of Mercury Based Compounds At Extreme Conditions, Sarah Schyck

UNLV Theses, Dissertations, Professional Papers, and Capstones

It has been theoretically predicted that when mercury difluoride (HgF2) is pressurized to above 50 GPa in the presence of molecular fluorine, it will most likely transform into mercury tetrafluoride (HgF4), thus mercury will behave as a transition element at high pressure. However, there is no experimental evidence verifying this prediction yet. To begin with, the crystalline properties of pure HgF2 at high pressure were not experimentally established. In this thesis, the high pressure structural properties of HgF2 are investigated by means of synchrotron X-ray powder diffraction. Our results reveal that the predicted, ambient cubic structure of HgF2 with the …

Scheduling Two Machines With Dissimilar Costs, Madhurupa Moitra

UNLV Theses, Dissertations, Professional Papers, and Capstones

We consider two devices, which has states ON and OFF. In the ON state, the devices use their full power whereas in the OFF state the devices consume no energy but a constant cost is associated with switching back to ON. Such two devices are configured with different run and power-up costs on which a sequence of jobs must be processed. The object is to minimize the cost. Such systems are widely used to conserve energy, for example, to speed scale CPUs, to control data centers, or to manage renewable energy.

The problems are studied in the framework of online …

The Influence Of Opponent Strategy And Psychopathic Traits On Point Gains And Cooperation In The Iterated Prisoner’S Dilemma, Mary Baggio

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Prisoner’s Dilemma game is a paradigm used to model and measure social cooperation. Uncooperative behavior may be one manifestation of the unstable interpersonal functioning in psychopathy. I investigated the effect of opponent strategy as well as psychopathic traits of fearless dominance (FD) and impulsive antisociality (IA) on cooperation rates and total and competitive point gains in a sample of 177 undergraduates playing long, finitely iterated Prisoner’s Dilemma games against computerized opponents who varied in their interpersonal styles from very harsh to very lenient. I analyzed rates of cooperation during each game, participants’ total points gained, and the difference in …

A Framework To Capture Dynamic Traffic Trends From Historical Sensor Data, Carlos Gaviria

UNLV Theses, Dissertations, Professional Papers, and Capstones

The typical approach of increasing infrastructure to alleviate traffic issues such as congestion is becoming unviable due to limited space, high cost, and associated externalities. Control and management strategies using Intelligent Transportation Systems (ITS) seek to maximize the use of existent infrastructure. Many ITS strategies, such as the deployment of information, require or benefit from knowledge about traffic patterns and trends. This study proposes a mathematical programming formulation and solution algorithm that considers multiple time intervals for the estimation of network-wide traffic states and calculation of the corresponding transition probabilities. The proposed solution enables the determination of sections of the …

Managing Data-Driven Change: A Model Of Unintended Deviation, Sang-Mun Ray Cho

UNLV Theses, Dissertations, Professional Papers, and Capstones

Data-driven change in hospitality gaming is desirable because of the opportunities to leverage untapped sources of rich and abundant marketing data. However, change has been difficult to implement as indicated by a lack of widespread adoption. Some have attributed these difficulties to cultural, structural, and other generic factors but these explanations fail to explain the root dynamics of data-driven change.

In this dissertation, it is theorized that data-driven change requires a particular form of social interaction, which are called analytical bonds (AB). The suggestion was that there is a sender of an analytic deliverable and a receiver that makes a …

Optimization Of Useful Hard X-Ray Photochemistry, David Lewis Goldberger

UNLV Theses, Dissertations, Professional Papers, and Capstones

X-ray induced damage is generally considered a nuisance, but in the field of Useful Hard X-ray Photochemistry we harness the highly ionizing and penetrating properties of hard X-rays (> 7 keV) to initiate novel photochemical decomposition and synthesis at ambient and extreme conditions. Preliminary experiments suggest that the energy of irradiating photons and the sample pressure play roles in determining the nature of X-ray induced damage. Here, we present the X-ray energy dependence of damage induced in strontium oxalate, strontium nitrate, and barium nitrate, as well as the pressure dependence of X-ray induced damage of strontium oxalate. Our results indicate …

Design And Preliminary Evaluation Of A Supercritical Carbon Dioxide Brayton Cycle For Solar Dish Concentrator Clean Energy Production, Danielle Nobles-Lookingbill

UNLV Theses, Dissertations, Professional Papers, and Capstones

As we move toward energy independence and more ambitious clean energy goals, solar energy research must push the efficiency limits of traditional energy generation systems. Increases in efficiency can be achieved by increasing the hot temperature of the power cycle. Recent research demonstrates the potential for increased efficiency and a vastly smaller component size when supercritical carbon dioxide Brayton power cycles are used. Concentrated solar and nuclear heat sources are capable of achieving the high working fluid temperatures needed for significant efficiency gains. This NSF EPSCoR funded, experimental research system is designed to exploit the uniquely immense solar irradiance of …

A Qualitative Study Of School Psychologists' Perception And Interpretation Of Their Professional Identity, Elizabeth A. Sanders

UNLV Theses, Dissertations, Professional Papers, and Capstones

The primary focus or aim of this qualitative multiple-case study was to increase understanding of how experienced school psychologists define themselves as professionals within the field, taking into consideration the profession’s collective or organizational identity, the parameters established by the organization, and the actual performance of the job within the educational setting. Specifically, this study examined how the individuals’ definitions had changed over time and what lived experiences led to development and change in professional identity. Six school psychologists with 10 or more years of experience from a large urban Southwestern school district’s school psychology department were invited to participate. …

Analysis And Design Of Analog Front-End Circuitry For Avalanche Photodiodes (Apd) And Silicon Photo-Multipliers (Sipm) In Time-Of-Flight Applications, Vikas Vinayaka

UNLV Theses, Dissertations, Professional Papers, and Capstones

This thesis reports the analysis and design of analog front-end circuitry for reading out signals from avalanche photodiodes (APD) or silicon photomultiplier (SiPM) in time-of-flight (ToF) applications. An integrated circuit was designed using AMS SiGe 0.35 um BiCMOS process. The chip measured 2 mm x 2 mm (2000 umx2000 um). The chip mainly contains the following circuits: an APD with photoactive area measuring 24 umx24 um, an SiPM with 8x8 APDs with 236 k ohm quench resistors, a transimpedance amplifier (TIA), a comparator and a R-2R digital to analog converter (DAC). The TIA is based on the shunt-shunt feedback topology. …

Effects Of Ambient Air Pollution On Asthma-Related Emergency Department Visits Within The Las Vegas Metropolitan Area, Loiren E. Monardes

UNLV Theses, Dissertations, Professional Papers, and Capstones

The objective of this research was to evaluate the risk for asthma-related Emergency Department visits and their association with ambient air pollution within the Las Vegas metropolitan area. All data were aggregated by date and ZIP Code. The association was analyzed by applying the distributed lag non-linear model in an attempt to identify elevated concentrations of specific air pollutants

as triggers and their delayed effects (lag days). Relative Risk (RR) and 95% confidence intervals were produced, while adjusting for socioeconomic status. This ecological population-based study analyzed daily asthma counts of Emergency Department visits from January 1st, 2009 to December 31st, …

“Need We Mention Our Fashions? “The Educational, Entertaining, And Nostalgic Uses Of Godey’S Lady’S Book Fashion Plates, 1830 To 1940, Maggie Bukowski

UNLV Theses, Dissertations, Professional Papers, and Capstones

This thesis focuses on the fashion plates in Godey’s Lady’s Book and the way the publisher of Godey’s, Louis Godey, and the editor, Sarah Hale, engaged with the fashion plates. The format of Godey’s combined fashion plates, domestic advice, and literature; it defined the genre of women’s magazines for almost half a century. Godey’s Lady’s Book was established by Louis Godey in 1830. In 1837 he hired Sarah Hale as literary editor. This partnership lasted for forty years until they both retired from the magazine in 1877. Throughout the forty years Louis Godey and Sarah Hale worked together, the fashion …

Literature In The World: A Critical Discourse Study Of World Literature Pedagogy, Elisa Cogbill-Seiders

UNLV Theses, Dissertations, Professional Papers, and Capstones

“Literature in the World” is a critical discourse analysis of world literature pedagogy in U.S. higher education. It investigates the ways discourse communities in higher education produce and shape the field of world literature. The dissertation begins by establishing and analyzing the generic conventions of university mission statements, finding they are primarily dominated by discourse on global learning. It follows with an analysis of world literature course descriptions from the same schools. World literature course descriptions alternatively replicate, resist, or subvert global learning discourses. The last chapter uses findings from the first two chapters to trace how university and instructor …