Digital Commons Network^™

Geographic Access To Community Mental Healthcare And Adherence To Treatment Among Patients With Schizophrenia Spectrum Disorders, Marie Smith-East

Electronic Theses and Dissertations, 2020-2023

Disparities in access to mental health care for individuals with schizophrenia spectrum disorders continue to exist in the United States despite the creation of mental health policies seeking to improve access to care. As an integral element of healthcare system delivery, access is influenced by spatial (location) and non-spatial (sociodemographic) factors. Highlighting both spatial and non-spatial dimensions of access to mental healthcare, this study employed an innovative approach encompassing the geography of access and the integration of location analyses to bridge the gap between psychosocial dynamics and mental health services for improving cost-effective continuity of care. The aims were as …

Rethinking Burnout In Informal Caregivers: Development And Validation Of The Informal Caregiver Burnout Inventory - 10 Item Form, Nicholas James

Electronic Theses and Dissertations, 2020-2023

Measurement of informal caregiver burnout is typically achieved by re-purposing scales of occupational burnout. Such approaches have several methodological and theoretical weaknesses. This paper proposes a new tool for measuring caregiver burnout: The Informal Caregiver Burnout Inventory (ICBI). In the first portion of this study, focused feedback was collected from within-field experts and caregivers. Following item revision, an online sample of informal US caregivers of an individual with dementia was collected. Item Response Theory analysis was used to prune low-information or low-consistency items from the scale. The finalized ICBI contained 10 items and showed strong convergent validity, adequately differentiated burnout …

Additive Manufacturing Of Elastomeric Lung Phantoms In Radiation Oncology, Jonathan Sookdeo

Electronic Theses and Dissertations, 2020-2023

Cancer is a particularly difficult disease to manage and treat, with cancer of the lung being a notably complex disease to treat with radiation therapy. In this study, a stereolithography-based 3D printing process was developed to fabricate human lung phantoms with identical mechanical and physical properties of human lungs in order to assist with targeted radiation therapy. A highly flexible UV photopolymer material with an elastic modulus of approximately 350 KPa was formulated for use in a custom-built stereolithography-based 3D printing apparatus. The printer built for 3D printing of the photopolymer features a large build volume with off-shelf components with …

Hybrid Physics-Informed Neural Networks For Dynamical Systems, Renato Giorgiani Do Nascimento

Electronic Theses and Dissertations, 2020-2023

Ordinary differential equations can describe many dynamic systems. When physics is well understood, the time-dependent responses are easily obtained numerically. The particular numerical method used for integration depends on the application. Unfortunately, when physics is not fully understood, the discrepancies between predictions and observed responses can be large and unacceptable. In this thesis, we show how to directly implement integration of ordinary differential equations through recurrent neural networks using Python. We leveraged modern machine learning frameworks, such as TensorFlow and Keras. Besides offering basic models capabilities (such as multilayer perceptrons and recurrent neural networks) and optimization methods, these frameworks offer …

Identifying Diurnal Variability Of Brain Connectivity Patterns Using Graph Theory, Farzad Vasheghani Farahani

Electronic Theses and Dissertations, 2020-2023

Circadian rhythms are 24-hour fluctuations determining periodicity in a wide range of physiological processes, including neural activity and hormone secretion, which controls sleeping and feeding habits. Despite significant diurnal variation in human brain function, neuroscientists have rarely considered the effects of time-of-day on their studies. Moreover, there are interpersonal discrepancies in sleep-wake patterns, diurnal preferences, and daytime alertness (known as chronotypes), which can cause different diurnal profiles in human cognition and brain performance. The study of circadian typology differences has increased in recent years, however, examining the effects of both time-of-day and people's chronotype requires further elucidation. In the present …

The Effects Of Gesture Presentation In Video Games, Jack Oakley

Electronic Theses and Dissertations, 2020-2023

As everyday and commonplace technology continues to move toward touch devices and virtual reality devices, more and more video games are using gestures as forms of gameplay. While there is much research focused on gestures as user interface navigation methods, we wanted to look into how gestures affect gameplay when used as a gameplay mechanic. In particular, we set out to determine how different ways of presenting gestures might affect the game's difficulty and flow. We designed two versions of a zombie game where the zombies are killed by drawing gestures. The first version of the game is a touchscreen-based …

Seismocardiography - Genesis, And Utilization Of Machine Learning For Variability Reduction And Improved Cardiac Health Monitoring, Peshala Thibbotuwawa Gamage

Electronic Theses and Dissertations, 2020-2023

Seismocardiography (SCG) is the measured chest surface vibrations resulting from cardiac activity. Although SCG can contain information that correlate with cardiac health, its utility may be limited by lack of understanding of the signal genesis and a variability that can mask subtle SCG changes. The current research utilized medical imaging reconstruction and finite element method (FEM) to simulate SCG by modeling the propagation of myocardial movements to the chest surface. FEM analysis provided a link between myocardial movements and the SCG signals measured at the chest surface and suggested that myocardial movement is a primary source of SCG. Increased understanding …

Reducing Information Overload In Situated Visualization For Firefighting: A Human Factors Evaluation Of User Interface Prototypes For Pre-Incident Planning, Katelynn Kapalo

Electronic Theses and Dissertations, 2020-2023

High profile structure fires, like the Grenfell Tower tragedy, have demonstrated that the quality of the information provided to firefighters arriving on the scene of an emergency is a matter of life or death. It has been suggested that access to structural information such as electronic building plans or unmanned aerial vehicle footage may bridge the information gap to help first responders build situation awareness at the incident scene. However, these technologies have not been fully evaluated from a human performance perspective. The use of pre-incident plans (PIPs), information captured systematically about a facility prior to an emergency, provides a …

Prediction Of Pedestrians' Red Light Violations Using Deep Learning, Shile Zhang

Electronic Theses and Dissertations, 2020-2023

Pedestrians are regarded as Vulnerable Road Users (VRUs). Each year, thousands of pedestrians' deaths are caused by traffic crashes, which take up 16% of the total road fatalities and injuries in the U.S. (FHWA, 2018). Crashes can happen if there are interactions between VRUs and motorized transportation. And pedestrians' unexpected crossings, such as red-light violations at the signalized intersections, would expose them to motorized transportation and cause potential collisions. This thesis is intended to predict the pedestrians' red-light violation behaviors at the signalized crosswalks based on an LSTM (Long Short-term Memory) neural network. With video data collected from real traffic …

Optimization Studies For The Gas Atomization And Selective Laser Melting Processes Of Al10simg Alloy, Sharon Park

Electronic Theses and Dissertations, 2020-2023

Selective laser melting (SLM) is an additive manufacturing technology that can fabricate complex engineering components using a scanning laser beam to melt consecutive layers of powders with characteristics that significantly influence material properties. Present work investigates both the gas atomization and SLM processes for the Al10SiMg alloy with a focus on establishing the relationships among atomization parameters, powder characteristics, SLM parameters and materials properties. Al10SiMg alloy powders (Al-10wt.%Si-0.5wt.%Mg) were batch-produced through gas atomization by systematically varying the melt flow rate (0.012 - 0.037 kg/s), gas pressure (1.4 - 3.1 MPa), and melt temperature (850C -1000C). The highest yield of 80 …

Ultraviolet Irradiation Combined With Chlorine Dioxide Pre-Oxidation For Disinfection By-Product Control, Paula Campesino

Electronic Theses and Dissertations, 2020-2023

The use of ultraviolet (UV) light and chlorine dioxide (ClO2) as an advanced oxidation process (AOP) has been investigated at the bench-scale to understand the effects of their use on disinfection by-product (DBP) formation potential (FP) in chlorinated groundwater (GW) and surface water (SW) supplies. Two GWs and two SWs of varying qualities were subject to a series of AOP treatment sequences at the bench scale: sodium hypochlorite, to serve as a baseline; ClO2-Cl2, UV-Cl2, and UV-ClO2-Cl2. In these treatment sequences, Cl2 is used as a primary and secondary disinfectant. Several water quality parameters were measured throughout the experiments, including …

Pathological Tremor As A Mechanical System: Modeling And Control Of Artificial Muscle-Based Tremor Suppression, Christopher Kelley

Electronic Theses and Dissertations, 2020-2023

Central nervous system disorders produce the undesired, approximately rhythmic movement of body parts known as pathological tremor. This undesired motion inhibits the patient's ability to perform tasks of daily living and participate in society. Typical treatments are medications and deep brain stimulation surgery, both of which include risks, side effects, and varying efficacy. Since the pathophysiology of tremor is not well understood, empirical investigation drives tremor treatment development. This dissertation explores tremor from a mechanical systems perspective to work towards theory-driven treatment design. The primary negative outcome of pathological tremor is the undesired movement of body parts: mechanically suppressing this …

Creation And Analysis Of An Enhanced Rascal-Lvc Framework Capable Of Simulating Ionizing Radiation Damage To Emergency Responders During A Nuclear Power Plant Disaster: A Case Study In Unmanned Aerial Vehicle Electronic System Survivability, Buder Shageer

Electronic Theses and Dissertations, 2020-2023

This study developed and analyzed the use of a live virtual constructive (LVC) framework capable of simulating ionizing radiation damage to Unmanned Aerial Vehicles (UAV) during a nuclear power plant disaster. UAV response promises greater safety to humans over helicopters as well as provides longer survivability in the presence of irradiated environments. However, electronics in unmanned systems are subject to radiation damage and over time eventual failure. A LVC simulation framework may offer an independent and low-cost assessment of equipment life expectancy. Knowing life expectancy of equipment for operational scenarios is critical for emergency management planners. This research creates an …

The Gamification Framework Of Military Flight Simulator For Effective Learning And Training Environment, Daeho Noh

Electronic Theses and Dissertations, 2020-2023

The purpose of this thesis is to develop a framework for the gamification of flight simulators to provide an active learning and training environment for military jet pilots. Currently, with the development of visual displays and computer processing capabilities, the modern simulator has made great progress in visual and auditory terms that is incomparable to the past. In addition, functions that were previously implemented through supercomputers and complex hardware devices are now available through desktop computers at an affordable cost. Despite these advances, the simulators so far are thought to have been negligent in building an active learning and training …

Human Performance In Virtual Reality Environments And Its Exploration With Engineering Analytics, Fahad Alasim

Electronic Theses and Dissertations, 2020-2023

Engineering Analytics (EA) is a technique used to derive meaningful insight from gathered data. It is an approach that has arisen, and it includes the process of analyzing data using analytics tools from fields such as Big Data, Machine Learning (ML), traditional operations research, statistics, and numerical methods. Industrial Engineering is an engineering field concerned with how to design better, improve, and install integrated systems, uses EA to understand and continually improve, innovate, and build new processes. Therefore, EA and Virtual Reality (VR) technology can be used in combination with Electroencephalography (EEG), a physiological measurement, to investigate human areas. The …

The Impact Of Work Environment On Successful Implementation Of Lean Six Sigma In Emergency Department, Elaf Makkawi

Electronic Theses and Dissertations, 2020-2023

Continuous improvement (CI) is an initiative to improve the performance of processes in alignment with the customer needs and organizational strategy. Lean Six Sigma (LSS) is one of the most successful CI techniques in redesigning and improving significant processes to improve quality and eliminate waste. The healthcare sector has benefited from applying LSS due to its complicated work practices that face many challenges including increased expenditures and difficulties related to individual or community access to appropriate care. In particular, Emergency Departments (ED) have an important unit within healthcare organizations due to their essential role in providing urgent medical care services …

Assessing The Potential Of Implementing Blockchain In Supply Chains Using Agent-Based Simulation And Deep Learning, Mohammad Obeidat

Electronic Theses and Dissertations, 2020-2023

In this decade, with the rise of data science accompanying the growth of e-commerce, many technologies have been developed. An example of these technologies is Blockchain, which has appeared to overcome security problems potentially. This research assesses Blockchain's implementation in supply chains through a methodology that uses deep learning and agent-based simulation. A case study was utilized to observe and validate research developments. The unique method predicts intrusions by using deep learning, and agent-based modeling reproduces artificial but convincing agents (e.g., customers, companies, hackers, and cyber pirates) in a computer-generated market. Trust and other relationships are systematically captured to represent …

An Approach To Modeling Simulated Military Human-Agent Teaming, Maartje Hidalgo

Electronic Theses and Dissertations, 2020-2023

With the rise of human-agent teaming (HAT), a new cycle of scientific discovery commenced. Through scientific discovery, a number of theories of constructs in HAT were developed, however, an overarching model is lacking that elucidates the relative importance of these constructs in relation to human performance. The main objective of this research was to develop a model of simulated military HAT and to validate it against selected empirical data. Experimental data borrowed from four simulated military HAT studies were used to test the proposed Core model. The Core model was assumed to be directly affecting task performance and consisted of …

Pestilence And Poverty: The Great Influenza Pandemic And Underdevelopment In The New South, 1918-1919, Andrew Kishuni

Honors Undergraduate Theses

This study examines the "Spanish" influenza pandemic of 1918-1919 in the U.S. South, using case-studies of Jacksonville, Savannah, New Orleans, and Nashville to sculpt a "Southern flu" more identical to the Global South and the developing world than the rest of the U.S. I examine poverty and political and economic paralysis in the years between the end of Reconstruction and 1918, and the poor results of political indifference on public health and disease control. I also analyze the social and institutional racism against persons of color that defined high infectious disease mortality in Southern cities.

I argue that Southerners faced …

Addressing The Elephant On The Stage: Mental Health In Theatre Education, Alexandra M. Meridionale

Honors Undergraduate Theses

This thesis examined the ways in which present-day 6^th through 12^th grade theatre educators approach the topic of mental health, both implicitly and explicitly, in theatre education. Through a survey of existing literature, as well as interviews with 6^th through 12^th grade theatre educators, the researcher examined ways in which theatre educators were aware of the mental health needs of their students in any of the following capacities: explicit discussions regarding mental health, theatre curriculum, show selection, script analysis, and casting choices.

The reveal the educator perception that mental health issues are increasingly relevant to 6 …

Australian And New Zealand Army Corps (Anzacs) In World War One: The Making Of National Identity And Erasure Of Women And People Of Color, Simran Pawar

Honors Undergraduate Theses

My work seeks to understand the origins of national identity as it pertains to the Anzacs of Australia and New Zealand, their service at the Battle of Gallipoli, and its use in the establishment of a white, male creation myth in both nations following the end of World War One. I furthermore plan to examine how this Anzac myth excluded and even erased the place of marginalized communities in the birth of Australia and New Zealand as modern nations. In other words, my thesis explores both the insiders and the outsiders of the Anzac myth. My cutting-edge research aims to …

Gender Disparity Of Women In Theatre Design, Madison M. Valesky

Honors Undergraduate Theses

The question of why there is gender disparity in the field of theatre design continues to be an issue that has been widely debated in the field of theatre; scholars such as Tish Dace argue that workplace environments and family support are two of the main reason women leave the field of design. However, there are works, articles, arguments and perspectives that have not been adequately addressed regarding why the issue of why gender disparity in theatrical design still exists. My thesis addresses the issue of gender disparity in theatre design with special attention to the underlying issues that exists. …

A Transnational Look At The Modern Women, Isabella Hardesty

Honors Undergraduate Theses

Spanning forty years apart, the short story “Miss Sophia’s Diary” (1926) by Ding Ling and The Bell Jar (1963) by Sylvia Plath can speak to one another in revealing the position of women in a revolutionary new era. The two stories may be generationally and geographically distant, yet both hold a collective female consciousness in the context of the emerging modernist epoch. By examining these two pieces of literature in relation to one another, similar attitudes and stylistic trends emerge regarding the treatment of women. The common archetypes, for each respective time and country, imprinted onto women are at some …

Doctors And "Dopefiends": Perspectives On The U.S Opiate Crisis, 21st Century, John C. Foerster

Honors Undergraduate Theses

This article examines the socio-political intricacies of the United States Opiate Crisis. By first addressing the pharmaceutical origins of Oxycontin and its pain relief benefits within the United States, I construct a framework by which a conversation about substance abuse can move forward. Within the first chapter I provide background into the arguments for medicalization against personal responsibility as it relates to opiate withdrawal and seeking treatment for the prior. Furthermore, I include subheadings to further provide insight into Medically Assisted Treatment Centers and their function on the local level. I contrast these modern treatment models with the Reagan War …

Visual Rhetorics And Rally Signs: A Study Of Feminist Theory And Progression, Rachel Casey

Honors Undergraduate Theses

This research explores the current directions of the U.S. Women's Movement and the beliefs encompassed by 21^st century feminism through a study of participant rally signs displayed at the 2020 Women's March on Washington. Currently, there is much ambiguity surrounding the values for which feminism stands and further contestation about whether a U.S. Women's Movement exists at all. This study examines public feminist activism in an established social rally to extrapolate goals of the present women's agenda and underlying manifestations of feminist philosophy. Through analysis of personal messages and examination of feminist directions, further implications concerning rational dialogue and …

Macho Remixes: A Collection Of Writings, Daniel A. Hernandez

Honors Undergraduate Theses

Macho Remixes: A Collection of Writings is a thesis containing short stories, poetry, and a personal essay that discuss the matter of toxic masculinity through the representations of male and macho sexuality in the Latinx culture. It covers depictions of how Latinx men have been stereotyped in today’s society. The works included here are my own perspectives of what masculinity means to me as a young multicultural male navigating life. Throughout these texts, I—my speakers and narrators—grapple with understanding the conflicting and oppressive expectations drawn from my roots, particularly those based in Latinx culture. The purpose is considering the negative …

Color And Color Placement Effects On Purchase Intent Of Loot Boxes In Video Games, Mackenzie Bland

Honors Undergraduate Theses

Research on the effects of color associations in gambling situations has especially come to the forefront in recent times with the rise of casinos and other sales techniques in which consumers do not know the outcome of their purchases. Loot boxes are a unique form of micro-transactions in video games where players are uncertain about the objects they will receive with their monetary purchase. The aim of this study is to explore the effects of color and color placement in ads on loot box purchase intent. It will contribute to research about color perception in marketing and will, more specifically, …

"It’S Just A Bad Period" And Other Ways Of Dismissing Women's Pain: An Ethnographic Look Into The Experience Of Endometriosis, Selina Hays

Honors Undergraduate Theses

This thesis uses online ethnographic methods to analyze the impact of patriarchal values on the illness experiences of women with endometriosis. Current literature suggests that negative impact on patients with endometriosis with regard to cultural discourse surrounding menstruation and chronic illness. Utilizing a combination of critical discourse analysis and constructivist grounded theory, the results of this research demonstrate that patients engage in a form of performance that is reactive to normalization and dismissal of pain by doctors and wider social support due in part to cultural stigmas of menstruation and chronic pain, as well as the inherent power imbalance in …

Growing Up Puerto Rican: College Students' Reality Of Staying In Puerto Rico Post-Maria, Bianca M. Pizarro Vázquez

Honors Undergraduate Theses

Puerto Rico has been under influence and colonial rule by the United States since the Spanish-American War of 1898. This has led the island to have partial and limited control over the affairs inside it. The passing of Hurricane Maria on September 20^th of 2017 exposed problems even further. Puerto Rico remains under the control of a Financial Oversight and Management Board since the passing of the PROMESA act (The Puerto Rico Oversight, Management, and Economic Stability Act) signed by President Barack Obama in 2016. This had forced Puerto Rico to make drastic cuts to its public services. One …

Understanding Medical Error In Surgical Stapler Use: A Philosophical And Scientific Analysis, Jacob E. Howard

Honors Undergraduate Theses

Classified for decades as a “least risk medical device,” surgical staplers have been recently associated with at least 41,000 injuries and 360 deaths in the last ten years (FDA Letter to Healthcare Providers, 2019). This shocking development has generated calls for a broad investigation into the errors involved in surgical stapler use and reform of the regulatory protocol for medical devices. Current regulatory infrastructure and framework operate with understandings that combine risk inherent to the device and that which is born by the operator (FDA Classification Call, 2019). This thesis explores the aforementioned classification error and its adverse outcomes from …