Digital Commons Network^™

How Long-Term, Non-Monogamous Romantic Relationships Maintain Sexual Satisfaction, Anna Kessler

UNLV Theses, Dissertations, Professional Papers, and Capstones

Eroticism is an important element of couple's relationships. Sexual intimacy has the power to bring couples closer together, as higher levels of sexual intimacy results in higher relationship satisfaction, or hinder relationships if either or both partners aren’t sexually satisfied in their relationship. The current study’s purpose is to understand how long-term, non-monogamous relationships have successfully maintained “eroticism” throughout the course of their relationship. In this study, 24 couples who are in a committed, romantic relationship of at least 7 years were interviewed. The interviews were conducted individually over a video call platform, and each was completed withing approximately 60 …

Improving Pedestrian Safety With The Implementation Of The Demand-Responsive Transverse Rumble Strip As A New Traffic Safety Countermeasure, Md Shakhawat Hossen

UNLV Theses, Dissertations, Professional Papers, and Capstones

The traditional TRS has been extensively used as a traffic calming device to provide cognitive alerts in the form of sound and vibration to drivers. However, TRS always remains fixed on the road and thus exerts cognitive alerts, irrespective of any potential downstream hazards. Moreover, the continuous exposure to rumble strips has been identified as a source of discomfort and annoyance for drivers, which limits its application to potentially useful scenarios. This study explores a rumble strip design with dynamic behavior named as Demand-Responsive Transverse Rumble Strip (DRTRS) in order to address the limitations of static TRS. The study incorporates …

Quaternary Ammonium Compounds As Precursors To Disinfection Byproducts, Padmanabhan Krishnaswamy

UNLV Theses, Dissertations, Professional Papers, and Capstones

Disinfection of drinking water is crucial for providing a safe potable water supply. Some of the most common disinfectants employed are chlorine, chloramines and ozone. While these disinfectants successfully inactivate pathogenic microorganisms, they simultaneously react with inorganic or organic precursors to form toxic byproducts, most commonly referred to as disinfection byproducts (DBPs). While there is a wide variety of organic matter and disinfection byproducts known, in this study we have looked into the potential of certain quaternary ammonium compounds (QACs) to act as precursors to form DBPs, namely trihalomethanes (THMs), haloacetonitriles (HANs) and nitrosamines.

The ubiquitous nature of QACs in …

A Human-Embodied Drone For Dexterous Aerial Manipulation, Dongbin Kim

UNLV Theses, Dissertations, Professional Papers, and Capstones

Current drones perform a wide variety of tasks in surveillance, photography, agriculture, package delivery, etc. However, these tasks are performed passively without the use of human interaction. Aerial manipulation shifts this paradigm and implements drones with robotic arms that allow interaction with the environment rather than simply sensing it. For example, in construction, aerial manipulation in conjunction with human interaction could allow operators to perform several tasks, such as hosing decks, drill into surfaces, and sealing cracks via a drone. This integration with drones will henceforth be known as dexterous aerial manipulation.

Our recent work integrated the worker’s experience into …

How Covid-19 Has Impacted Romantic Relationship Dynamics, Alexandria Jayci Lake

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study was to provide an exploration of impacts to romantic relationship dynamics attributed the COVID-19 pandemic. Though many attributes of COVID-19 classify it as a distinct, unique event in its own right, a literature review of past global health events and economic crises provided a foundational reference point from which to compare it to. Twelve participants who were in relationships with another person for at least four years at the time were interviewed, six of which who were parented individuals and six of which who had no children, to discover how COVID-19-related changes developed over the …

Calculating The Learning Rate Of A Neural Network Using A Genetic Algorithm, Eric Miller

UNLV Theses, Dissertations, Professional Papers, and Capstones

In the field of Computer Science, neural networks and genetic algorithms have become very popular tools in solving complex problems. Because of this growing popularity, there has been several attempts to combine the two concepts. Some of these attempts focused on using genetic algorithms to determine the best architecture, starting weights, or feature selection, to name of few of the applications. While a lot of the research that is available focuses on solving more than one element of the neural network design or is looking to use genetic algorithms to replace a part of the traditional neural network, such as …

The Influences Of Medicaid On Mental Health Practitioners, Matthew Mohan

UNLV Theses, Dissertations, Professional Papers, and Capstones

Medicaid is the largest publicly funded health insurance program which influences the mental health practitioners’ treatment of low income individuals (Altman & Frist, 2015; Rowland et al., 2003). To understand how Medicaid influences mental health practitioners, this study utilizes institutional theory by using the five propositions from Lammers and Barbour (2006) to analyze how Medicaid’s communicative practices influence mental health practitioners who treat those who are in poverty. Semi-structured interviews were conducted with 10 mental healthcare practitioners who accepted Medicaid: two psychologists, five social workers, one psychiatrist, and two psychiatric nurse practitioners. The results demonstrate how mental health practitioners respond …

Exploring The Latent Space Of Image Captioning Networks, Mikian J. Musser

UNLV Theses, Dissertations, Professional Papers, and Capstones

State-of-the-art image captioning models can successfully produce a diverse set of accurate captions. Previous research has focused on improving caption diversity while maintaining a high level of fidelity. We shift the focus from accuracy and diversity to controllability. We use a modified version of the traditional encoder-decoder network that allows the model to produce a meaningful and structured latent space. We then explore the latent space using several latent cartographic methods: lerp, slerp, analogy completion, attribute vector rotation, and interpolation graphs. Additionally, we discuss different categories of latent space and provide modifications for each of the cartographic methods. Finally, we …

Constructing The Perfect Girlfriend: Gender, Class, Race, & Performativity Of Paid Intimacy In Nevada Brothels, Christina Parreira

UNLV Theses, Dissertations, Professional Papers, and Capstones

While most research on commodified intimacy, especially in the sex industry, has explored gender dynamics, sex work researchers are beginning to also explore intersectional dynamics in the industry. But little research has examined whether or how workers may navigate these dynamics differently through the ways in which they understand and perform service labor. Much research has explored commodified intimacy in different settings, but very little attention has been paid to the different ways that workers in the same setting perform intimacy. In this dissertation I ask how do different performances of intimate service in the brothels- the girlfriend experience (GFE) …

Tinyml For Gait Stride Classification, Priyanka Rajendra

UNLV Theses, Dissertations, Professional Papers, and Capstones

Human gait classification and analysis become very important when a person has been diagnosed with a neurological disorder or has suffered an injury which has affected their ability to walk correctly. Gait strides are an important parameter to be studied as it helps the doctor to diagnose any underlying gait condition and evaluate what type of treatment suits the best for the patient’s recovery. Studying gait strides also helps athletes to improve their performance.In today’s world, machine learning has emerged as one of the most widely used technology for classification and analysis of gait characteristics. TinyML is a field of …

Turbulence Modeling Of Shock Boundary Layer Interaction In Hypersonic Flows, Sogol Pirbastami

UNLV Theses, Dissertations, Professional Papers, and Capstones

Over the past few years, renewed interest in hypersonic research has significantly increased. Some of the most challenging obstacles in hypersonic vehicles design are associated with the shock wave turbulent boundary layer interactions (STBLI). This can cause a severe jump in pressure along with aerothermodynamic loads, which might result in structural damages or engine unstarts of hypersonic vehicles. Understanding the complex characteristics of these flows requires comprehensive physical experiments and detailed CFD turbulence modeling. In this dissertation, CFD simulations of STBLI using different turbulent modeling based on a set of experiments of hypersonic flow over a large hollow cylinder flare …

Feasibility And Efficacy Of Virtual Darkness In Reducing Intra-Individual Sleep Variability Among Young Adults With Insomnia, Samantha Nicole Sherwood

UNLV Theses, Dissertations, Professional Papers, and Capstones

BackgroundInsomnia impacts 30% of people and is associated with increased risk for medical and psychiatric illness. However, pharmacological treatments for sleep yield mixed results and often result in undesirable side effects indicating a need for novel insomnia interventions. Sleep patterns also demonstrate high intra-individual variability which may be associated with greater daytime impairment, and sleep-wake cycles are strongly affected by the timing of exposure to blue-green wavelength light. Virtual darkness, a novel intervention, blocks blue wavelength light from reaching the eye to simulate actual darkness on retinal cells sensitive to light. Therefore, the purpose of the current study is to …

Modeling The Mechanical Behavior And Shock Propagation Of Metallic And Nanocomposite Materials, Pouya Shojaeishahmirzadi

UNLV Theses, Dissertations, Professional Papers, and Capstones

Evaluating the materials properties under different loading conditions is critical in various industries. Compared to quasi-static loading, predicting the behavior of structures under dynamic loads is more challenging. In this work, we will address multiple problems with strain rates varying from quasi-static to hypervelocity conditions. Computer simulation is increasingly used in the design and evaluation phases to improve the efficiency, cost-effectiveness, and flexibility. However, verification and validation of each simulation is necessary. Experiments are performed in all topics and the computational models are validated by comparing with the experiments. One of the most common types of connections in structures is …

Social Support Of Mexican Immigrant Women With Gestational Diabetes Mellitus: A Constructivist Grounded Theory Study, Angela Sojobi

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study was to explore the perception of social support among Mexican immigrant women with gestational diabetes mellitus (GDM) within the context of their culture and discern the process through which social support can influence their adherence to the GDM management protocols. The incidence of GDM is highest in low-income, ethnic minority communities such as the Mexican immigrant community. Adhering to the GDM management protocols may prove challenging for some women, especially if social support is lacking. If uncontrolled, GDM can result in adverse maternal-fetal outcomes. Among Mexican immigrant women, the incidence of poor glycemic control and …

Machine Learning Analysis Of Single Nucleotide Polymorphism (Snp) Data To Predict Bone Mineral Density In African American Women, Erick Githua Wakayu

UNLV Theses, Dissertations, Professional Papers, and Capstones

Osteoporosis is a debilitating disease in which an individual’s bones weaken, making bones fragile and more susceptible to fracture. While commonly found amongst postmenopausal Caucasian and Asian women based on previous studies, those of African descent (African American/Black) have largely been ignored when it comes to osteoporotic studies, especially when it comes to Genome Wide Association Studies (GWAS). From GWA studies, we gain access to single nucleotide poly-morphisms (SNPs) that may contribute to certain illnesses, such as osteoporosis. With low Bone Mineral Density (BMD) being one of the primary markers of potential osteoporosis, it is prudent that proper research is …

Hybridity, Ecocriticism, And Feminist Perspectives In She-Ra And The Princesses Of Power, Sarah Warso

UNLV Theses, Dissertations, Professional Papers, and Capstones

Children’s cartoons are growing increasingly nuanced in the twenty-first century. She-Ra and the Princesses of Power (2018) is an animated television series targeted towards young girls that includes themes of ecocriticism and feminism. The show does this by introducing cyborg, or hybrid, characters. My research explores how cyborg identities in children’s media and their feminist, ecocritical meanings in She-Ra and the Princesses of Power. The cyborg, as a feminist mythic hero, breaks down binaries and recodes communication between opposing forces. The She-Ra is filled with characters that inhabit multiple identities. The main character, Adora, identifies as both a former Evil …

Mobile Sports Betting Marketing Plan, Scott Flinn

UNLV Theses, Dissertations, Professional Papers, and Capstones

From day one, the hospitality industry in Las Vegas has been innovating and evolving to develop one-of-a-kind experiences for customers from all around the world. Over the decade's hospitality corporations have been shaped through mergers and acquisitions with the end goal of growing land-based assets, improving income statements and balance sheets for shareholders, and trying to own every dollar that a tourist spends while in the city (Bussman, 2021).

Customer Purchase Intention Towards The Us Airline, Ming-Chun Kuo

UNLV Theses, Dissertations, Professional Papers, and Capstones

The airline industry has become the main economic resource to the United States. The airline companies have had a very mature operating base towards their marketing standing point and their target customers. Yet, customer purchase behavior has changed consistently, especially after the whole year of lockdown of COVID-19 pandemic. Customers no longer only look for the service quality when they select an airline to fly. This paper aims to explore the possible aspects that may affect customer purchase intention to a US-based airline. Many studies have indicated that service quality is no longer the only reason to attract the purchase …

International Relations And Tourism: Geopolitical Tension In China-United States Relations And Implications In Tourism Development, Le Shen

UNLV Theses, Dissertations, Professional Papers, and Capstones

"Black cat or white cat, if it can catch mice, it's a good cat." As China's then Chief Secretary, and later the nation's "Paramount Leader" Deng Xiaoping made this now-famous metaphor in the 1960s for a planned economy versus that of a market economy (Zheng & Sun, 2018), little did anyone at the time anticipated the sheer level of influence this populous yet impoverished nation would have on the world's geopolitical and economic scene in the coming decades. Indeed, through a combination of economic reforms, diplomatic engagement, and political reorganization, the People's Republic of China rapidly elevated its international positioning …

Building Customer Loyalty With Millennials In The Gaming Entertainment Industry, Daysha Catchings

UNLV Theses, Dissertations, Professional Papers, and Capstones

This paper discusses how to build customer loyalty between Millennials and casinos. Although research has indicated that casinos are losing the interest of the Millennial consumer, it is recommended that casinos do not give up on this demographic. The Millennial generation is massive, accounting for a fourth of the U.S. population. Entering the workforce at rapid speed, this generation has a large amount of spending power and is willing to pay more for a product that is deemed valuable. This paper intends to lay the groundwork for an exploratory research study on customer loyalty and Millennials in the gambling and …

Factors Influencing Service Robot Adoption: A Comparative Analysis Of Hotel-Specific Service Robot Acceptance Models, Ying Dong

UNLV Theses, Dissertations, Professional Papers, and Capstones

The market for service robots is expected to expand significantly owing to the increasing relevance of service automation under the outbreak of the COVID-19 pandemic. Despite the growing managerial interest in robotic applications in the hotel industry, current robotic research has been mostly conceptual with limited robot data on hand. In light of this issue, this paper will conduct a comparative analysis of hotel-specific service robot acceptance models between the Service Robot Acceptance Model (sRAM) and the Service Robot Integration Willingness (SRIW) framework. By identifying key elements of each service robot acceptance model, this paper puts an emphasis on investigating …

Shaping Success For Mobile Applications Of Integrated Resorts, Krista Larsen

UNLV Theses, Dissertations, Professional Papers, and Capstones

As smartphones have become indispensable in society, it has become critical for integrated resorts to develop mobile applications ("apps") that serve as a marketing tool and an enhancement in the customer's travel journey. This research reviews the features of existing mobile travel apps, in addition to areas of opportunity for future innovations regarding this platform. Based on this research, this study recommends best practices for an integrated resort's mobile app. The findings of this study can be leveraged as a resource when developing and maintaining mobile apps within the hospitality industry to provide an optimal guest experience throughout the entire …

Data Analytics In Hotel And Integrated Resort Brands: An Evaluation Of Past Literature And Proposed Research For The Future, Luke Andrew Walocko

UNLV Theses, Dissertations, Professional Papers, and Capstones

Data analytics in hotel and integrated resort brands is a growing strategy implemented to support business decisions designed to generate revenue or save costs. This study utilizes a literature review of data analytics related publications to provide recommendations on future research topics to improve the quality of literature related to data analytics in hotel and integrated resort brands. The study is not limited to hospitality specific research and uses research from all industries to identify gaps in publications for hospitality scholars to explore. Three proposed research questions for future exploration were composed based on the comparison of literature written for …

Utilizing Gamification To Enhance Customer Engagement And Loytalty In The Hospitality Industry, Xiaoting He

UNLV Theses, Dissertations, Professional Papers, and Capstones

Gamification involves the engagement of game elements and designs in non-game contexts. There is a need to increase the effectiveness of the conventional loyalty program, and implementing gamification has become a popular concept. Gamified hotel loyalty programs differentiate hotels from their rivals by increasing customer engagement and, ultimately, customer loyalty. Despite prior research on the effectiveness and functions of gamification, under what conditions gamification can enhance enagement lacks further investigation. This study draws on the Self-Determination Theory (SDT) to develop a framework linking gamification elements with users' psychological needs, where customer engagement is enhanced when the game elements successfully satisfy …

Investigating Acculturation, Health-Promoting Lifestyle, And Health Status Among Nigerian Immigrants In The United States, Frank Uche Akpati

UNLV Theses, Dissertations, Professional Papers, and Capstones

The United States has a significant number of immigrants from Africa. More come from Nigeria than other African countries. Even though acculturation influences health behavior in other cultures, this relationship is understudied in the Nigerian immigrant community in the United States which can influence their health care. This study examined the relationship between acculturation, health-promoting lifestyle, and health status of Nigerian immigrants. Key constructs from Berry’s acculturation model guided the study. Acculturation was conceptualized as occurring through varying levels of ethnic society immersion (ESI) and dominant society immersion (DSI). The study also examined the influence of education on acculturation using …

Numerical Studies Of Regularized Navier-Stokes Equations And An Application Of A Run-To-Run Control Model For Membrane Filtration At A Large Urban Water Treatment Facility, Jeffrey Belding

UNLV Theses, Dissertations, Professional Papers, and Capstones

This dissertation consists of two parts. The first part consists of research on accurate and efficient turbulent fluid flow modeling via a family of regularizations of the Navier-Stokes equation which are known as Time Relaxation models. In the second part, we look into the modeling application for the filtration/backwash process at the River Mountains Water Treatment Facility in Henderson, NV.

In the first two chapters, we introduce the Time Relaxation models and their associated differential filter equations. In addition, we develop the regularization method which employs the Nth van Cittert deconvolution operator, which gives rise to the family of models. …

Racial/Ethnic Disparities In Mental Health Diagnosis Of Maltreated Youth, Shadie Burke

UNLV Theses, Dissertations, Professional Papers, and Capstones

Racial/ethnic marginalized youth are more likely to receive a misdiagnosis of a mental health disorder than their White peers. Misdiagnosis contributes to existing disparities for racial/ethnic marginalized groups by leading to longer durations of untreated and worsening mental health symptoms. For maltreated youth, receiving a misdiagnosis can lead to a failure to connect with appropriate mental health services, medication regimens, therapeutic foster homes, and academic and developmental resources. To date, very few empirical studies have identified disparities in mental health diagnosis among racial/ethnic marginalized maltreated youth. The present study examined two key research questions: (1) what racial/ethnic disparities in diagnoses …

From Language Comprehension Towards General Ai, Binay Dahal

UNLV Theses, Dissertations, Professional Papers, and Capstones

Language comprehension or more formally, natural language understanding is one of the major undertakings in Artificial Intelligence. In this work, we explore a few of the problems in language understanding using fixed deep learning models. Specifically, first, we look into question generation. Asking questions relates to the cognitive ability of language comprehension and context understanding. For that reason, making progress in question generation is significant. We introduce a novel task called “question generation with masked target answer” and propose various models and present the baseline result for the task. Next, we extend on the question generation task and develop a …

Factors Associated With Medication Decision Making In African American Families Of Children With Adhd: A Mixed Methods Study, Amy Glasofer

UNLV Theses, Dissertations, Professional Papers, and Capstones

Attention-deficit/hyperactivity disorder (ADHD) is the most common neurobehavioral pediatric disorder in the United States. Pharmacotherapy is a recommended component of treatment for ADHD. While medication treatment of ADHD is not optimized overall, minority groups experience medication treatment disparities. The persistently lower rates of medication treatment in minority groups may have culturally specific origins which cannot be generalized across minorities. The purpose of this dissertation was to assess and extend knowledge regarding medication decision making (MDM) in African American caregivers of children with ADHD. To assess the state of the science on ADHD disparities, a review of 41 descriptive studies exploring …

Determination Of The Presence Of Sars-Cov-2 In Environmental Surface And Air Samples From Public Areas In Las Vegas, Kristina Mihajlovski

UNLV Theses, Dissertations, Professional Papers, and Capstones

Contaminated surfaces and airborne spread are found to be among the main ways of coronavirus disease 2019 (COVID-19) transmission. Studies conducted in the hospital setting have shown that SARS-CoV-2 is found on frequently touched surfaces, personal protective equipment, and in air samples of patient isolation rooms. However, few environmental sampling studies have been done in public areas. Taking in consideration that COVID-19 cases may be symptomatic, presymptomatic, and asymptomatic, environmental monitoring may be essential for prompt detection of the virus. The objective of this study was to determine whether SARS-CoV-2 can be detected on environmental surfaces and from air samples …