Digital Commons Network^™

Numerical Calculations Of The Electromagnetic And Gravitational Wave Signatures Of Unequal Mass Black Hole Binary Inspirals, Madeline Clyburn

All Dissertations

In 2015, the Laser Interferometer Gravitational-Wave Observatory (LIGO) measured the first gravitational waves (GWs) from the coalescence of two stellar-mass black holes. This detection marked a historic milestone in astrophysics, confirming general relativity and establishing the existence of gravitationally bound black holes. Since then, researchers have extended the search to even more massive black hole mergers. Recently, the International Pulsar Timing Array (IPTA), including the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), detected a nanohertz GW background from supermassive black hole binaries (SMBHBs), black holes with masses M ≃10^7−10^9 M⊙ orbiting throughout the universe. However, a single SMBHB has …

Drought, Worry, And Preparing For The Future: The Ethnopsychology Of Climate Distress In Kilifi County, Kenya, Edna Bosire, Syed Wahid, Linda Khakali, Benjamin Oestericher, Felix Agoi, Anthony Ngugi, Rosebella Iseme, Jasmit Shah, Zul Merali, Lukoye Atwoli

Brain and Mind Institute

The impacts of climate change in sub-Saharan Africa (SSA) presents a chronic and intensifying disaster, with drought, flooding, and extreme heat, presenting unique challenges and profound disruptions. Growing evidence links such events to ecological grief, ecological anxiety, and solastalgia – negative affective states that reflects responses to climate change related destruction of nature, species, culturally significant or sacred spaces, and other ways of life. While this literature is expanding in the Global North, little is known about how communities in SSA perceive and respond to deteriorating or depleting natural ecosystems. This article explores the ethnopsychology of distress precipitated by environmental …

Community Perspectives On Factors Contributing To Resilience For Healthy Aging In Kenya, Linda Khakali, Everline Onchari, Maureen Ondire, Catherine Onyancha, Chinedu Momoh, Edna Bosire

Brain and Mind Institute

Background: The global elderly population is increasing and expected to double in thenext decade. Aging increases the likelihood of adversities, with resilience becomingan important aspect of healthy aging. Understanding how individuals conceptualizeresilience offers an opportunity to create contextually relevant interventions forpromoting healthy aging. This study aimed to explore adults’ perspectives on factorsinfluencing resilience in Kenya.

Method: Using qualitative methods, 36 adults aged 35 years and above werepurposively recruited from various communities in Nairobi County to participate ininterviews. We asked questions about their understanding of aging, adversity andresiliency. We also provided them with case scenarios of two individuals respondingdifferently to the …

Dual-Model Approach For Accurate Chest Disease Detection Using Gvit And Swin Transformer V2, Kamal Ahmad, Hafeez Ur Rehman, Babar Shah, Farman Ali, Irfan Hussain

All Works

The precise detection and localization of abnormalities in radiological images are very crucial for clinical diagnosis and treatment planning. To build reliable models, large and annotated datasets are required that contain disease labels and abnormality locations. Most of the time, radiologists face challenges in identifying and segmenting thoracic diseases such as COVID-19, Pneumonia, Tuberculosis, and lung cancer due to overlapping visual patterns in X-ray images. This study proposes a dual-model approach: Gated Vision Transformers (GViT) for classification and Swin Transformer V2 for segmentation and localization. GViT successfully identifies thoracic diseases that exhibit similar radiographic features, while Swin Transformer V2 maps …

Pas De Deux, Emmalea Bellemare

LSU New Orleans Theses and Dissertations

In New York City, 2004, 20-year-old Michael Kurotori is a professional ballet dancer and instructor working for the prestigious Brigid Ballet Academy. Under the supervision of his mentor, Prima Ballerina Anya Vladislav, Michael is quickly approaching the top of his career - until a new student threatens to steal Anya’s attention away. Suddenly, Anya is missing. And Michael, hiding dark secrets behind his mask of perfectionism, is approached by mysterious stalker, Thomas Wolf with evidence of his involvement…

“Overture” is the first episode of PAS DE DEUX, an eight-hour story about honor, identity, and the effect of trauma and mental …

Coupled Machine Learning Models: Combining Observations And Numerical Analysis In A Physics-Regularized Approach, Austin B. Schmidt

LSU New Orleans Theses and Dissertations

This dissertation investigates surrogate modeling for fixed-location environmental forecasting using novel data-combination techniques. The work surveys the landscape of observational measurements and numerically generated data, identifying similar research and gaps in current methodologies. The ratio-coupled training framework is introduced to combine two data sources per predicted feature through a tunable parameter that weights training signal strength. An optimization scheme is developed to simultaneously tune surrogate weights and the coupled signal ratio, allowing relative influence between signals to act as an explicit regularizer. Three case studies demonstrate the methodology and approach in a variety of contexts. The first study is based …

A Quantitative Exploration Of Risk And Protective Factors Affecting The Mental Health Of Chitimacha Tribal Youth, Daphnie Vilcan-Tanner

LSU New Orleans Theses and Dissertations

This study examines the relationships between demographics, risk factors, and protective factors with mental distress among Chitimacha Tribal adolescents aged 12 to 18. Using a Positive Youth Development framework, the research aimed to identify the prevalence of mental distress, trauma, discrimination, and protective factors, as well as their collective and individual impacts on mental health. Data were collected through online surveys completed by 73 participants residing on or near the Chitimacha Tribal Reservation. Descriptive statistics and multiple linear regression analyses were conducted to analyze the data. Results revealed that while trauma and discrimination collectively predicted mental distress, family and community …

Effects Of Injectable Trace Mineral Timing On Calf Performance And Health Indicators, Marie E. Goulais

Graduate Theses and Dissertations

One hundred and fourteen calves (average BW= 224kg ± 89kg) were utilized to evaluate the effects of injectable trace mineral (ITM) administration on calf performance and health when administered pre-weaning and at weaning. Calves were blocked by sex, stratified by age, and randomly assigned to one of the following treatment groups: 1) no ITM injection (CON), 2) ITM administered 28 d before weaning (PW), or 3) ITM administration at weaning (WEAN). Calves were vaccinated against respiratory pathogens on D-28 and D0. At weaning, cattle were transported to a local auction market, held overnight and returned the following morning. Body weight …

Finding Utopia: An Examination Of Pedagogical Approaches To Teaching Utopianism In U.S. College Classrooms, Brittany Page Brake

Dissertations

This dissertation investigates how, and if, utopianism is being taught in college classrooms across the United States. Long considered impractical, overly idealistic, and/or politically dangerous, utopianism has been largely marginalized in political science and American culture. However, this project finds that there are instructors teaching utopianism and they are using the concept to challenge students to think differently about governance, justice, and institutional design. Drawing from political theory literature, course syllabi submitted by faculty from different U.S. universities, interviews with instructors, and personal case studies of my own courses at Central State University and Manchester University, I explore how utopian …

Three Funny Things: A Multicultural Validation, Jon Hook

Dissertations

This dissertation evaluated the efficacy of Three Funny Things, a humor-based positive psychology intervention (PPI) designed to enhance subjective well-being (SWB) and reduce depressive symptoms. Subjective well-being was operationalized through self-reported happiness, measured by the Authentic Happiness Inventory (AHI), and depressive symptomatology, measured by the Center for Epidemiologic Studies Depression Scale (CES-D). A repeated-measures design was employed across three time points: baseline (Time 1), post-intervention (Time 2), and one-month follow-up (Time 3). Participants (N = 126) represented a racially diverse community sample, including individuals identifying as White (61%), Black or African American (18%), Hispanic or Latino/a (11%), Asian (6%), and …

Development And Validation Of A Thermal Model For An Electric Vehicle Transmission, Ghazal Rajabikhorasani

Dissertations

This research investigates the thermal behavior of a high-speed electric vehicle (EV) helical gearbox with the goal of improving the prediction accuracy of component temperatures and total power losses under a range of operating conditions. The study focuses on developing a physics-based lumped-parameter thermal network model capable of capturing the main heat generation and dissipation mechanisms within the transmission. The model integrates experimentally validated loss correlations for gears, bearings, seals, and churning, as well as convective and radiative heat transfer paths.

The thermal network model was coded in MATLAB and validated through a series of controlled experiments performed on an …

Development Of The Hydrogeology Concept Inventory And Exploration Of Its Embedded Spatial Thinking Components, Oluwarotimi Akindele Popoola

Dissertations

Hydrogeology is a sub-discipline of geoscience that deals with the occurrence and movement of water and possible contaminants within the subsurface. Understanding basic principles of hydrogeology is important for applying practical solutions to hydrogeology problems. Hydrogeology is a visuospatial discipline in which spatial thinking skills play a significant role. To assess the hydrogeology knowledge of students, a valid and reliable assessment instrument with spatial components is required.

This research was conducted as a series of quantitative studies with three goals: (1) to develop the Hydrogeology Concept Inventory (HCI), a valid and reliable measure of upper-level undergraduate students’ hydrogeology knowledge, (2) …

Reliability Analysis Of In-Person And Virtual Goniometric Measurements For Select Shoulder And Forearm Motions, Autumn Whitson, Tracy Cook, Lisa Middleton, Casey E. Humphrey, Aaron D. Sciascia

EKU Faculty and Staff Scholarship

Background Previous research on upper extremity range of motion has compared in-person to virtual measures for sagittal plane motions (flexion/extension) showing good-excellent reliability. Since upper extremity evaluation includes motion in all planes, it is important to assess whether transverse plane motion (rotation, supination, pronation) can be reliably measured during a virtual assessment. Purpose To evaluate the reliability (test/re-test inter-rater and intra-rater) of goniometric measurements of shoulder internal rotation and forearm pronation/supination obtained in-person and virtually. Study Design Observational cohort, Reliability study Methods Subjects 18-60 years of age with no upper extremity injuries were recruited for range of motion (ROM) testing …

A Systematic Review Of Corporate Ethics Program Training Strategies To Improve Ethical Workplace Cultures, Robin Raye Altice

Educational Leadership & Workforce Development Theses & Dissertations

The demand for corporations to practice more ethically responsible conduct and decision making is growing with every news report of another corporate scandal, lawsuit, fine, or high-visibility C-suite firing. To develop an ethical workplace culture, organizations should implement a comprehensive ethics program that fosters and encourages ethical decision making, especially among current and future leaders. However, there is little research and few guidelines for how ethics program administrators should design corporate ethics training to effectively practice and master the skill of ethical decision-making in efforts to continually grow a more ethical work environment. This study aims to identify corporate ethics …

Relativistic Three Particle Scattering, Md Habib E Islam

Physics Theses & Dissertations

In this dissertation, we develop and apply a relativistic framework for studying three-body scattering amplitudes, their analytic structure, and the emergence of universal phenomena such as the Efimov effect. The work integrates three complementary components.

First, we introduce a systematically improvable numerical method for solving relativistic three-body integral equations in momentum space. By discretizing the continuum problem into finite matrix equations and extrapolating to the continuum limit, we obtain stable partial-wave amplitudes in the presence of a two-body bound state. Two complementary treatments of the pole contribution are implemented and shown to reproduce previous finite volume results, with controlled estimates …

Focal Engine: Filling A Gap Between Game Engines And Big-Data Scientific Visualization Packages, Kindrat Beregovyi

Doctoral Dissertations

This dissertation presents Focal Engine, a novel 3D visualization engine designed to bridge the gap between game engines and scientific visualization tools. Game engines offer accessible interfaces and high-performance rendering but struggle with large-scale scientific datasets, while tools like ParaView and VTK handle complex data structures effectively but lack intuitive editing capabilities and modern rendering features. Focal Engine combines the accessibility and rendering performance of game engines with the data handling capabilities and analytical tools of scientific visualization platforms. The engine's capabilities are validated through multiple applications and projects, for example: HabiCAT 3D performs 3D complexity measurements on ocean floor …

Evaluating The Impact Of Policy In Theatre: The Influence Of Public & Political Policy On The Theatrical World, John Q. Rhodes

Undergraduate Honors Theses

In the second half of the twentieth century, there is distinct evidence to exhibit a direct correlation between daily occurrences and matters of public policy. This paper serves to analyze the impact of U.S. public policy on theatrical practices. To provide a detailed and targeted analysis of the exponential impact public policy had upon the theatrical industry, this examination will look at theatre beginning in 1961 and will extend towards the current administration of President Donald Trump and is organized in ten-year segments. Each decade will be generalized for its direct or indirect changes that occurred within the period and …

Augmenting Large Language Models To Predict Social Determinants Of Mental Health In Opioid Use Disorder Using Patient Clinical Notes, Madhavi Pagare, Deva Sai Kumar Bheesetti, Inyene E. Essien-Aleksi, Mohammad Arif Ul Alam

Health Sciences Faculty Publications

Objective

Identifying social determinants of mental health (SDOMH) in patients with opioid use disorder (OUD) is crucial for estimating risk and enabling early intervention. Extracting such data from unstructured clinical notes is challenging due to annotation complexity and requires advanced natural language processing (NLP) techniques. We propose the Human-in-the-Loop Large Language Model Interaction for Annotation (HLLIA) framework, combined with a Multilevel Hierarchical Clinical-Longformer Embedding (MHCLE) algorithm, to annotate and predict SDOMH variables. Materials and Methods

We utilized 2636 annotated discharge summaries from the Medical Information Mart for Intensive Care (MIMIC-IV) dataset. High-quality annotations were ensured via a human-in-the-loop approach, refined …

(R2115) Analysis Of Single Server Queueing System With Differentiated Vacations And Differentiated Breakdowns, V. Karthick, V. Suvitha

Applications and Applied Mathematics: An International Journal (AAM)

This research work considers a single server queueing model with differentiated vacations. In addition there is a possibility of two types of failures when the server is in a busy period; namely hard failure and soft failure. In the time of soft failure server may work with a slow service rate. We analyzed as a Quasi-Birth-and-Death (QBD) process, using the matrix geometric method, the steady state probability vector of the number of customers in the queue and the stability conditions are produced. Busy period analysis of the proposed model in given. The effects of various parameters on the system performance …

(R2132) A Multi Server Markovian Working Vacation Queue With Randomly Varying Environment, A. Sundaramoorthy, R. Kalyanaraman

Applications and Applied Mathematics: An International Journal (AAM)

In this article, we consider a multi server Markovian queueing system with working vacation. During busy period, the arrival and service completion are generated by K distinct randomly varying environments. At a service completion epoch, if no customer in the system, the servers take vacation, the vacation policy is multiple vacation policy and the vacation period follows negative exponential distribution. In addition, during vacation period the servers serve customers if they arrive. Based on the vacation termination point we define two Models. For the two models, the steady state probability vector of number of customers in the queue, the stability …

(R2135) System Dynamical Analysis For Ann-Based Numerical Solutions Of A Compartmental Model: A Bio-Mathematical Model Of Drug Diffusion Through The Compartments Of Blood And Tissue, Rakesh Kumar, Sudarshan Dhua

Applications and Applied Mathematics: An International Journal (AAM)

This paper provides a considerably efficient numerical approach to acquire the solutions of a biomathematical model administrating oral and intravenous distribution of pharmaceuticals in the human body. The proposed numerical approach based on an artificial neural network is employed to extract numerical solutions for a detailed set of ordinary differential equations and analyze the change in concentration of drug diffusion via the compartments of blood and tissue medium. We primarily focus on analyzing three different models established on the diffusion process, exercising laws of mass action and Fick’s principle. In this work, the existing model is reformulated as an optimization …

(R2107) Analysis Of A Bivalent Vaccine Model With Peer Influence Effect On Testing, Manoj Kumar Singh, Anjali .

Applications and Applied Mathematics: An International Journal (AAM)

The coronavirus caused havoc around the world. There was a terrible situation in villages and cities, and no one knew how to deal with it. Although the governments of each country tried their best to save the common people, vaccination programs and testing centers were built everywhere. However, people were not utilizing it due to fear. Because of this, the infection spread rapidly. The qualitative study of the mathematical model here is in context with the situation when bivalent vaccination and testing are available for an epidemic. The mathematical model combines the exposed period and influenza model with vaccination included …

Daily Life Therapy: Daily Living Skills Training (Handwashing, Brushing Teeth, And Getting Dressed) For Parents Of Autistic Children, Christpher T. Fontecchio

Instructional Design Capstones Collection

The Boston Higashi School founded by Dr. Kiyo Kitahara in 1987 has been utilizing Daily Life Therapy to teach residential autistic children daily living skills. Parents, whose children attend the Boston Higashi school just in the day program, have expressed challenges in teaching daily living skills when their children are home and have asked for strategies to carry over what is being taught at school into their home. Utilizing the tenets of “Kimochi Zukuri,” to prepare the child’s mind for a task, the training proposed with this project is to bridge the gap in teaching daily living skills from Boston …

Exclusivity In Early Maya Monumentality, Scott R. Hutson, Mario Zimmermann, Iliana Ancona Aragón

Anthropology Faculty Publications

Datasets from around the world suggest that people completed early monumental construction projects without long-term structures of hierarchy or authority. In the Maya area, some of the first monuments produced by semisedentary societies, such as those at Yaxuna and Ceibal, were built in the absence of substantial social inequality. The focus of these monuments was a relatively inclusive plaza. This article presents evidence of an eighth-century BC monumental construction at Ucí, another site that was probably not fully sedentary. At Ucí, however, the first large architecture is not inclusive. Structure 14sub5 lacks a front stairway, separating people in the plaza …

Differences In Loading Rate In Shod And Unshod Treadmill Walking, David Austin Kropushek

Master's Theses

The purpose of this study was to compare the loading rates of shod and unshod conditions in treadmill walking. It was hypothesized that walking barefoot would demonstrate higher loading rates than walking with shoes. It was also hypothesized that walking barefoot on a treadmill would result in greater stride-to-stride variability than walking with shoes. Sixteen healthy adult females volunteered and provided their consent to participate in this study. Participants were given time to accommodate to the instrumented treadmill both while wearing shoes and without. Two 10-minute trials were collected with a rest period between. Data were analyzed using Vicon Nexus …

Moving Beyond The Tiktok Frame: Exploring Middle School Students' Understanding Of Dance Composition Through The Use Of Choreographic Exercises, Heather Barrett

Master's Theses

The purpose of this study was two-fold: (a) to measure student initial understanding of choreography against student final understanding of choreography and (b) to measure student dependency on social media for choreographic initiation. This study focused on the impact of choreographic exercises on participants’ abilities to create dance. This study also focused on the impact of using social media for inspiration on participants’ abilities to create dance. Participants were given a survey, choreographic exercises, reflections, an interview, and a rubric for a final performance project as metrics. These instruments measured participants’ responses in comparison to the beginning of the study …

Topic Modeling And Culturomic Analysis Of 30,000 Books Over 100 Years Using Gensim, Michael A. Freeman

Electronic Theses and Dissertations

This thesis explores the cultural influence of historical events on English-language fiction published between 1820 and 1929. Using a corpus of 30,256 digitized books from Project Gutenberg, Latent Dirichlet Allocation (LDA) topic modeling was applied to identify recurring themes across eleven decades. The study sought to determine whether historically significant events could be detected within fictional narratives. One clear instance emerged: Napoleon Bonaparte and the Napoleonic Wars appeared explicitly in the 1820s corpus. Beyond this, several thematic patterns were observed—such as maritime language in the 1840s, national identity in the 1880s, and youth-oriented dialogue in the early 20th century—that plausibly …

Improving Early Detection Of Suicidal Ideation Through Routine Screening In Adults With General Anxiety Disorder, Brittanie N. Bush

Doctor of Nursing Practice

Suicide is a leading cause of death in the United States, with anxiety and depression recognized as independent risk factors for suicidal ideation (Centers for Disease Control and Prevention, 2024 September 26; Grant et al., 2023; Li et al., 2022; Moon et al., 2025; Wiebengo et al., 2021). Incorporating valid screening tools like the General Anxiety Disorder-7 and the Columbia-Suicide Severity Rating Scale can help identify suicidal ideation early, enabling quicker provider intervention (Johnson et al., 2019; O’Connor et al., 2022). The purpose of this project was to implement the Columbia-Suicide Severity Rating Scale as a standardized screening tool for …

Enhancing Adherence To Veterans Affairs/Department Of Defense And American Psychiatric Association Clinical Guidelines For Alcohol Use Disorder, Corinna M. Trevino

Doctor of Nursing Practice

Alcohol use disorder continues to be significantly undertreated within outpatient behavioral health settings, particularly concerning pharmacological interventions. Despite the presence of robust national clinical guidelines recommending medications such as naltrexone for individuals with moderate to severe dependence, the rates of prescribing these medications remain modest owing to inconsistent screening procedures, limited referral practices, and provider follow-through barriers. This project was implemented at a substance use treatment center in a large metropolitan area to improve adherence to clinical practice guidelines. The purpose of this project was to increase prescribing of naltrexone and improve referral for patients with moderate to severe alcohol …

A Psychometric Evaluation Of The Pbss-20 Among Sexual And Non-Sexual Minority College Students, Alex Melville

Master's Theses

This study evaluated the psychometric properties of the Protective-Behavioral Strategies Scale-20 in a large national sample of college students containing sexual minority and non-sexual minority students. Specifically, confirmatory factor analysis was used to evaluate the model fit with this sample, invariance testing was used to compare the model among sexual and non-sexual minority students, and construct validity was evaluated. Participants included college students (N = 1,730; M_age = 19.41) from 12 universities across the United States, who were predominantly White non-Hispanic (63.6%), identified as female (70%), and as completely heterosexual (67.6%). Participants completed demographic information and measures of …