Digital Commons Network^™

An Audio Data-Driven Roadway Digital Twin And Its Underlying Framework For A Digitized Transportation Construction Environment, Anisha Deria, Pedro J. Chacon Dominguez, Yong-Cheol Lee, Jin W. Choi

Michigan Tech Publications

The increasing need to build and maintain transportation systems has led project managers to manage multiple projects simultaneously. Roadway projects often entail several miles of job site, making it difficult to keep track of progress and maintenance activities. To improve the situation, this study proposes an audio data-driven roadway digital twin framework for real-time and remote monitoring of construction projects. The latent characteristics of a digital twin required for establishing a digitized work environment were investigated. As a primary method of seamlessly linking virtual and physical environments, audio data classified and analyzed by deep neural network (DNN) has been employed …

Burnout And Compassion Fatigue Within Dispatch, Emily A. Mcfarren

Electronic Theses, Projects, and Dissertations

Continual exposure to trauma coupled with a general lack of

administrative support contributes to greater occupational risk for burnout and

compassion fatigue among first responders, causing many to leave the

profession. As the first line of communication for emergencies, dispatchers,

specifically emergency call takers are no exception. Yet, few studies have

investigated the prevalence and impact of burnout and compassion fatigue on

dispatchers in comparison to other first responders such as police, fire, or

emergency medical services (EMS). This study aimed to extend this line of

inquiry by surveying a stratified random sample of dispatchers working in

California dispatch centers …

Definition Of The 3d Position And Motion Status Of The Moving Heart Based On 2d Projections, Lawrence D. Orijuela

Electronic Theses, Projects, and Dissertations

This thesis presents a novel application of deep learning to the estimation of pulmonary vein coordinates using X-ray image pairs from a FORBILD Thorax phantom derived motion dataset. A Siamese neural network was developed to predict the 3D coordinates of one pulmonary vein at a time, specifically the Right Superior Pulmonary Vein (RSPV), Left Superior Pulmonary Vein (LSPV), Left Inferior Pulmonary Vein (LIPV), or Right Inferior Pulmonary Vein (RIPV), based on two-dimensional projection images.

The input data consisted of over 1.6 million grayscale X-ray image pairs across 1331 virtual patients, each annotated with ground truth 3D coordinates. To manage memory …

East Antarctic Ice Sheet History At The Outback Nunataks Using Geographic Information Systems And Cosmogenic Dating, Jacob P. Baker

Electronic Theses, Projects, and Dissertations

This study investigates the history of ice sheet surface elevation at the Outback Nunataks in East Antarctica using exposure age dating and geomorphic mapping. We identified glacial landforms at Roberts Butte, Miller Butte, and Frontier Mountain, in the Outback Nunatak range, using 2023 Landsat Image Mosaic of Antarctica (LIMA) and 2022 Reference Elevation Model of Antarctica (REMA). We collected bedrock and glacial erratic samples for cosmogenic nuclide analysis from Roberts Butte and Miller Butte during the 2023-24 United States Antarctic Program field season. Analysis of glacial erratics reflect inherited cosmogenic nuclide concentrations, resulting in apparent exposure ages between 359 and …

Rethinking The Performance Evaluation, Jason C. Crowley

Electronic Theses, Projects, and Dissertations

This paper delves into the complexities of performance evaluations within community college settings, aiming to inform a more effective approach specific to the unique characteristics of staff attracted to this work. Grounded in the understanding of validity in psychometric measurement and management theories, it seeks to identify evaluation criteria that prioritize enhancing the working environment which is known to impact overall organizational performance over traditional results-driven metrics to measure individual staff performance. Key theoretical underpinnings include discussions on validity, highlighting that measuring validity against the underlying goal of the performance evaluation (i.e., increased organizational performance) has been largely ignored in …

Property Management System, Abbas Kurnool

Electronic Theses, Projects, and Dissertations

The real estate industry generates and manages large amounts of data, including tenant information, lease agreements, property maintenance schedules, and financial transactions. Reliance on traditional manual methods often results in inefficiencies, fragmented data, and delays in decision-making. To overcome these challenges, this project presents the design and implementation of a Real Estate Property Management System (REMS) for Future Properties, a company aiming to optimize its operations through digital transformation.

The proposed system is developed on Microsoft Dynamics 365 as the core platform, integrated with the Microsoft Power Platform tools (Power Apps, Power Automate, and Power Pages). This integrated framework provides …

Writing The Script: Shaping Korean National Identity, Media Imperialism And The Revolution Of K-Dramas, Isai J. Martinez

Electronic Theses, Projects, and Dissertations

This thesis explores the role of South Korean television dramas (K-dramas) as cultural artifacts that the Korean creators have created and become agents, which in turn has constructed and projected globally the modern South Korean national identity. Positioned at the crossroads of cultural imperialism, nationalism, resistance and appropriation, K-dramas have become extremely critical to reshaping South Korea’s place in the global media landscape. Through the lens of the Hallyu (The Korean Wave), this study analyzes how K-drama’s navigate an ambiguous cultural space which simultaneously resists Western media dominance while appropriating global forms including platform-based distribution, tailoring original content to …

Complementary Color Laser Illumination For Perceptual Contrast Enhancement In Structurally Colored Samples, Tomoshree Dash

All Theses

Structural color, a phenomenon arising from nanoscale interaction between light and materials, has the potential to unveil biological, chemical, physical, and mechanical characteristics of the sample. It enables direct visualization of the sample by human users with high spatiotemporal resolution. However, its impact is often constrained by challenges in the perceptual differentiation of subtle color variations. This thesis introduces complementary color laser illumination (C²LI) as an imaging technique that enhances color perception of the Human Visual System (HVS) by accessing the psychophysical non-linearities in chromatic color perception. C²LI offers a platform optimized for the HVS by …

Diabetes-Induced Mitral Valve Degeneration: Tissue-Engineered Solutions And Antioxidant Therapy, Samantha Hahn

All Theses

Mitral valve (MV) fibrosis is a progressive pathological condition characterized by leaflet thickening and stiffening, ultimately compromising valve function. This process is accelerated in diabetes, where chronic hyperglycemia elevates reactive oxygen species (ROS) and alters the mechanics of the extracellular matrix (ECM), collectively promoting the activation of valvular interstitial cells (VICs). Under healthy conditions, VICs maintain a quiescent, fibroblast-like phenotype responsible for sustaining ECM homeostasis. However, pathological biochemical cues or mechanical stress drive VICs toward a myofibroblast phenotype. While this transformation is essential for short-term repair, its persistence contributes to maladaptive MV remodeling and fibrosis. Diabetic stressors may be mitigated …

Mitral Annular Calcification In Diabetes: Valvular Interstitial Cells, Antioxidant Therapy, And Tissue Engineering Approaches, Raleigh J. Keenan

All Theses

Mitral annular calcification (MAC) is a chronic, progressive, and degenerative condition that impairs mitral valve function and increases the risk of cardiovascular disease. The mitral annulus is a saddle-shaped, fibrous structure that is primarily composed of collagen and elastin. The annulus also contains interspersed lipids that are involved in cellular metabolism, as well as inflammatory and osteogenic signaling. These lipids increase the annulus’ susceptibility to calcification, under conditions that increase mechanical stress (hypertension) and promote atherosclerosis (diabetes mellitus). These conditions intensify calcification by promoting the activation of valvular interstitial cells (VICs), increasing fibrosis, and inducing osteogenic differentiation. Although it is …

Conference Realignment And Coaching Perspectives: Examining Social Support From Coaches To Athletes In The Acc, Big 12, And Big Ten, Brannon H. Timms

All Theses

The purpose of this study is to understand, from a coach's point of view, their perspective on conference realignment and how, if at all, it has changed their relationship with their athletes as it pertains to social support. Findings indicate that coaches expressed awareness of social support needs for their student athletes; notable gaps remain in emotional, esteem, and informational support. Based on the participants' responses, tangible support emerged as the only form of social support provided by these coaches. Coaches also expressed a desire for further legislation regarding NIL to maintain competitive fairness among NCAA athletics. The results underscore …

Exploring Augmented Reality Non-Driving-Related-Task Locations To Enhance Driver Situation Awareness In Conditionally Automated Vehicles, Tyler Riley

All Theses

With the approval of conditionally automated vehicles, or SAE Level 3 automated vehicles, drivers can now engage in non-driving related tasks (NDRTs) during automation. However, conditionally automated vehicles require drivers to resume vehicle control when the system prompts them, and the decreased situation awareness due to NDRT engagement may impact drivers’ takeover performance. This thesis investigates the prospective use of wearable augmented reality (AR) glasses by conditionally automated vehicle drivers to engage in visual NDRT. Specifically, this study examined how NDRT display location affects drivers’ situation awareness in a driving simulation experiment with 60 participants. Three NDRT display locations were …

Generative Ai In South Carolina Government Agencies: Assessing Literacy, Usage, And Adoption Support, Dundy Vishnu Vardhan Kodela

All Theses

Generative Artificial Intelligence (AI) is rapidly transforming public-sector operations by improving efficiency, enhancing decision-making, and expanding the quality of citizen services. In South Carolina, state agencies are beginning to explore AI adoption under the South Carolina State Agencies Artificial Intelligence Strategy (2024), which prioritizes protecting citizen privacy, promoting responsible AI integration, and strengthening workforce AI literacy. However, successful implementation depends on the readiness, knowledge, and support available to government employees who interact with these technologies. This study evaluates the current level of AI literacy, usage patterns, institutional support, and employee attitudes toward generative AI across South Carolina government agencies.

Data …

The Development Of Tools For The Production Of Fusarium Oxysporum Race 4 Resistant Cotton Varieties, Thomas Rylands

All Theses

Fusarium oxysporum race 4 (FOV4) is a fungal pathogen that infects cotton (Gossypium spp.) plants, resulting in fusarium wilt (FW) disease that causes significant wilting, yield loss, and eventually death. Since cotton is such an important crop globally, with tens of millions of bales of fiber produced and sold worldwide each year, it is critical to develop effective strategies to combat this pathogen. This research aims to achieve that goal through two projects: (i) develop an efficient co-culture system to test fungal treatments in vitro, and (ii) develop a computer vision pipeline to more accurately assess plant resistance …

Barriers To Modernizing Aviation Maintenance Technician Education To Meet Emerging Industry Needs, Durwa Chavan

All Theses

Modernizing aviation maintenance education is essential to keep pace with emerging technologies, including electric propulsion systems and advanced avionics. As aircraft systems become more digitized and interconnected, there is a growing demand for qualified technicians who can conduct advanced diagnostics and maintenance. However, training programs have not kept pace with these technological shifts, creating a gap between workforce preparation and industry needs.

Using a qualitative research approach, this study conducted semi-structured interviews with industry professionals, educators, and regulatory personnel to identify gaps in existing training programs and Airman Certification Standards (ACS). This study addresses the disconnect between current aviation maintenance …

Learning To Be Trauma-Informed: An Examination Of Individual-Level Factors Predicting Perceptions Of And Response To Trauma-Informed Practice Trainings, Kelly Daniel

Electronic Theses and Dissertations

Trauma is a substantial threat to public health. As such, significant effort has been exerted into developing interventions which mitigate the consequences of trauma. Trauma-informed practice (TIP) aims to alleviate the effects of trauma by building policies and practices focused on safety, trust, transparency, support, collaboration, and empowerment. This study investigated how individual-level factors, including readiness for organizational change, perceived benefit of TIP training, and personal trauma history affect one’s ability to apply a TIP lens in a sample (n =100) of members of a graduate-level college. Further, it explored if one’s perceptions of and response to trauma-informed practice training …

Behavioral Manifestations Of Childhood Abandonment: African-American Men's Reflections And Strategies To Support Teenage Boys In K-12 Education, Jarmel Bell

Electronic Theses and Dissertations

The purpose of this study was to explore the behavioral manifestations of childhood abandonment as reflected in the lived experiences of African-American men and to identify strategies that may support African-American boys in K–12 educational settings. Although there has been limited documentation regarding the direct connection between childhood abandonment and behavioral challenges in school environments, this study seeks to address that gap by capturing the reflections of African-American men who experienced abandonment during their formative years. These reflections provide insight into how abandonment may shape behavior in educational spaces and what types of interventions or supports might have made a …

Assessing Post-Pandemic Engagement In The Supplemental Nutrition Program For Women, Infants, And Children (Wic) In Northeast Tennessee, Christen Minnick

Electronic Theses and Dissertations

Since 1974, the federal Supplemental Nutrition Program for Women, Infants, and Children (WIC) has provided healthy food resources, nutrition education, and provider referrals for families at risk for poor nutrition. Public health professionals have consistently presented evidence that WIC engagement reduces premature births and infant mortality, improves child health and development, and increases specialized care access for participants. While average monthly participation in WIC has increased since the program’s inception, trends indicate that only around half of eligible families have consistently engaged with the program since 2011. Research has linked declining WIC participation to administrative burden, citing learning, psychological, compliance, …

Educator Perceptions Of Mindfulness Education In Rural Elementary Schools In Tennessee, Mary C. Shepherd-Mcgown

Electronic Theses and Dissertations

The purpose of this phenomenological study was to examine educator perceptions of mindfulness instruction and the alignment of school policies in rural elementary schools in Tennessee. Despite growing interest in mindfulness in education, few studies have investigated how these practices are experienced and implemented within under-resourced, rural contexts.

Guided by Bandura’s Social Learning Theory (SLT) and framed conceptually by the Whole-School Mindfulness (WSM) model, the study explored how social, organizational, and policy factors influence the adoption of mindfulness practices. SLT provided a theoretical lens for understanding how educator behaviors are shaped through observation, modeling, and reinforcement, while the WSM framework …

Bud On The Ballot: A County-Level Analysis Of Citizen Support For Cannabis Legalization, Amelia G. Jennings

Electronic Theses and Dissertations

Cannabis research has often emphasized usage rates among certain groups of citizens, focusing mostly on demographic factors. A less studied topic within the cannabis literature pertains to the predictors of voting patterns of legalization referendums. Past research on this topic has examined states with similar characteristics, which calls into question the generalizability of results. The current study attempts to broaden the scope of knowledge in this area by partially replicating a previous study that explored county-level voting patterns, while also exploring the potential influence of the declining agricultural industry in predicting support for cannabis legalization. This was accomplished by analyzing …

Bias And The Writing Process In Adaptations And Retellings Of Mythology, Haley Sanderson

Electronic Theses and Dissertations

My thesis is an examination of how adaptations and retellings of mythology are written and affected by readership and reception of mythology. I compare American Gods by Neil Gaiman and The Penelopiad by Margaret Atwood and how they are written as adaptations and retellings of mythology. As seen in both novels, the presence of the mythological source material in adaptations and retellings of mythology is equally influenced by authors’ perception and the influence of readership. Approaching the ideological positions of Atwood and Gaiman through the similarities and differences of The Penelopiad and American Gods provides a deeper insight on the …

"That Was Something I Had To Get Used To”: Communication Challenges Of African Graduate Teaching Assistants, Mohammed Hafiz Nabila

Electronic Theses and Dissertations

This qualitative study examined the communication challenges and adaptive strategies of African Graduate Teaching Assistants (AGTAs) in U.S. higher education, focusing on East Tennessee State University. The study aimed to understand how AGTAs navigate linguistic, cultural, and institutional barriers in their teaching roles. Using semi-structured interviews with seven participants, data were analyzed through thematic analysis to identify key patterns and meanings. Findings revealed challenges related to accents, cultural adjustment, and limited institutional preparation. Faculty mentorship played a vital role in shaping AGTAs’ confidence, interpretation of challenges, and professional growth. However, lack of support often led to isolation and self-doubt. The …

A Leslie System For A Demographic Simulation: From An Actuarial Point Of View, David Kings

Electronic Theses and Dissertations

This thesis develops a discrete stochastic linear systems interpretation of age–stage demographic evolution grounded in Leslie operators and realized in a discrete-event simulation implemented with salabim. The central claim is that one annual cycle of the simulation constitutes a cone-preserving, stochastic affine transformation on a high- dimensional population state vector indexed by age, sex, marital status, household type, employment, and education, and that the composition of yearly operators yields a random matrix product whose top Lyapunov exponent is the stochastic counterpart of the Perron–Frobenius growth rate (Caswell, 2001; Tuljapurkar, 1997)[1, 2]. The actuarial bridge is constructed by mapping simulated survival …

Perceptions Of Choral Teachers On The Characteristics Of A Secondary Choral Program, Nathan Dale Rhea

Electronic Theses and Dissertations

The purpose of this study was to examine the perceptions of choral teachers on the characteristics of a successful secondary choral program. The study focused on the main characteristics of excellence, success, and sustainability. The literature showed that there was a significant amount of research on the music curriculum, standards, and various assessment strategies but minimal research on perceptions on the characteristics of excellence, success, and sustainability of a choral music program at the secondary level.

Data collection strategies included individual interviews of eight participants who were choral music educators. The analysis of data occurred through the lens of the …

Isolation, Chemical Characterization, And In-Vitro Cytotoxic Evaluation Of Novel Polar Flavonoids From Chromolaena Leivensis, Matthew Tohatsu Tetteh

Electronic Theses and Dissertations

This study focuses on isolation, chemical characterization, and in-vitro cytotoxic evaluation of novel polar flavonoids from chromolaena leivensis. A 95% ethanolic extract of c. leivensis shipped by Prof. Ruben Torrenegra from University of Applied and Environmental Sciences, Bogota, Colombia, was dissolved in 1:1 methanol/chloroform mixture and its purity analyzed by TLC. The sample was eluted with toluene/methanol in an increasing order of polarity on silica gel, resulting in 49 fractions labelled CLA1 to CLA49. Among these fractions, CLA10 (1) and CLA19 (2) obtained yellow and white crystals. They were analyzed by GCMS, IR, and …

Comparative Value Of Echocardiography Vs. Right Heart Catheterization In Heart Failure With Preserved Ejection Fraction, Nathanael Tran, Mohammad Shaar, Hussein Al-Sudani, Ramy Sedhom, Hamza Akhtar, Kevin Bryan Lo, Gregg S. Pressman

Einstein Health Papers

BACKGROUND: Echocardiography and right heart catheterization (RHC) are useful in the evaluation of heart failure with preserved ejection fraction (HFpEF). We compared the two among decompensated HFpEF patients to determine their relative value in predicting all-cause mortality and a composite of cardiovascular (CV) death and heart failure (HF) readmission at 1 year.

METHODS: One hundred seventy-eight decompensated HFpEF patients who underwent both procedures and survived to hospital discharge were retrospectively identified. Hospital records and the National Death Index were queried to determine outcomes. Echocardiographic and invasive parameters were tested for significant associations with each outcome. Additionally, three predictive models were …

Discharge Against Medical Advice Among Pediatric Patients: A Retrospective Study From A Saudi Tertiary Emergency Department, Elaf A. Alshammari, Atheer M. Aljeraibah, Haya M. Aldabas, Saad M. Alqahtani, Raseel S. Alghamdi, Abdulrahman M. Alsharif, Yahya K. Alyahya, Abdullah I. Almojali

Saudi Medical Journal

ABSTRACT Objectives: To investigate the incidence, parental reasons, and predictors of emergency room (ER) revisits following discharge against medical advice (DAMA) in a pediatric center in Saudi Arabia. Methods: This retrospective cohort study was conducted between January 2020 and December 2024 at a tertiary care hospital. Pediatric patients aged 0-14 years who signed the DAMA during ER visits were included. Medical records of patients with DAMA were reviewed to collect demographic data, diagnoses, reasons for DAMA, and outcomes. Results: Among 446,251 ER visits, 2,336 (0.52%, 95% CI: 0.50%–0.55%) involved caregiver-signed DAMA. These rates ranged from 0.45% (2020) to 0.69% (2023). …

Evaluation Of Simplified Arabic Matrix Test In Children With Normal Hearing, Medhat F. Yousef, Alia A. Asiri, Abdulmalik M. Marzuq, Abdulaziz A. Almalki, Mohammed N. Garrada, Manal A. Khoja, Ibrahim A. Busaad, Mahmoud M. Mahrous

Saudi Medical Journal

ABSTRACT Objectives: To evaluate the simplified version of the Arabic matrix test in individuals with normal hearing to derive reference ranges for future measurements with the test material. Methods The test was conducted in 80 native Arabic individuals (20 adults and 60 children across different age groups between 5-10 years) from November 2020 to Mar 2023. Evaluation measurements were conducted in adults and children to derive the reference psychometric functions and assess the training effect. The test list equivalence was verified only in the adults group. Results The reference ranges for speech-intelligibility in noise for 80% thresholds or speech-recognition threshold …

Metabolic Screening In Veterans On Antipsychotics Mood Stabilizer, Joy Nneka Eke

Walden Dissertations and Doctoral Studies

Summary This Doctor of Nursing Practice project was conducted to examine a quality improvement initiative that sought to address metabolic syndrome screening consistency for veterans on antipsychotic medications at a U.S. Department of Veterans Affairs health system located in the Midwest region of the United States. The project centered on whether the quality improvement program assessing compliance with the current metabolic syndrome screening process reflects increased early detection of metabolic syndrome to prevent cardiovascular complications. Data collection involved comprehensive chart reviews of 50 veterans’ records. The data collected were analyzed using a specially designed quality improvement initiative assessment form developed …

The Effect Of Gender, Race, And Age On 30-Day Readmission Rates Among Heart Failure Patients In Mississippi, Patricia Ann Mondy

Walden Dissertations and Doctoral Studies

A sizeable number of U.S. heart failure patients are readmitted within 30 days of hospital discharge. There was a need to explore ways to reduce this number and improve the care of heart failure patients when they are discharged home. The purpose of this quantitative correlational study was to determine if there is a relationship between age, gender, and race of heart failure patients and 30-day readmissions in the U.S. state of Mississippi in 2019. The dependent variable was heart failure 30-day readmissions, and the independent variables were age, gender, and race. Wagner’s chronic care model was the theoretical framework …