Digital Commons Network^™

Laplace Factor Models In High-Dimensional Data, Siqi Liu, Xuerong Meggie Wen, Akim Adekpedjou, Guangbao Guo

Mathematics and Statistics Faculty Research & Creative Works

Laplace factor models (LFMs) provide a heavy-tailed alternative to Gaussian factor models by representing high-dimensional observations through a low-rank common component and Laplace-distributed idiosyncratic errors. This paper develops an assumption-consistent finite-sample analysis of matrix concentration, covariance estimation, and Monte Carlo integration under this model. We first formulate the model with explicit dimensional, independence, covariance, and identifiability conditions. Standard matrix Laplace-transform and matrix Bernstein inequalities are then recalled with their precise applicability conditions. Because untruncated Laplace variables are neither almost surely bounded nor strongly log-concave, these standard results cannot be applied directly in the forms commonly used for bounded or Gaussian-like …

Modeling Mean And Variability Of Anxiety In Ecological Momentary Assessment Data Using Mixed-Effects Location–Scale Models, Trenzy Odero

Electronic Theses and Dissertations

Ecological Momentary Assessment is a method of collecting repeated measures of people in real time within natural environments. This results in hierarchical data that has a significant amount of variation at the person level. The traditional linear mixedeffects models assume that the residual variance is constant, which might not be true when the residual variance varies among individuals as well as in time. This thesis uses mixed-effects location-scale (MELS) models to model the mean and variance of an EMA outcome together. By introducing the possibility of variability in residual variance within and across individuals and with covariates, the MELS framework …

Reapplication And Credential Completion Among Non-Selected Community College Health Science Applicants: A Social Stratification Perspective, Donna G. Whitehouse

Electronic Theses and Dissertations

Reapplication and Credential Completion Among Non-Selected Community College Health Science Applicants: A Social Stratification Perspective by Donna Whitehouse Community colleges serve as primary access points for healthcare workforce preparation, yet thousands of qualified applicants are not selected for competitive admission health science programs each year. Research on what happens to these students following non-selection is limited, and existing studies focus almost exclusively on nursing, leaving allied health programs largely absent from the literature. This study addressed that gap by examining the reapplication behavior and credential completion outcomes among 2,604 applicants to three competitive admission health science programs, Nursing, Occupational Therapy …

Unruly Curly Hair: The Role Of Latina Hair Stylists In Disrupting Beauty Hierarchies, Katie Duarte

Latin American and Latino/a Studies: Faculty Publications

Women of color use aesthetics to challenge and reproduce racialized, classed, or gendered marginalization, yet few sociological studies have examined women of color service workers as agents who negotiate, reproduce, and resist racialized beauty norms for their clients. This study utilizes a transnational ethnography of a beauty school course and Latina-owned curly and natural hair salons, primarily serving Latinas and Afro-Latinas, in New York City and Santo Domingo, Dominican Republic. Through its analysis, this article identifies different forms of gendered labor that stylists perform to introduce “specialized body labor,” thereby disrupting racialized beauty norms that devalue natural and Afro-textured hair. …

Enabling Multi-Task Neural Network Inference On Heterogeneous Edge Devices, Redwanul Islam Arif

Master's Theses

Deep neural networks are increasingly required to run on the devices that generate the data. If such a device must perform more than one task, the standard practice is deploying one model per task, which makes memory grow linearly with task count, which is unacceptable when the entire budget is kilobytes. This thesis asks one question in three settings: how much capability can a network acquire without incurring deployment cost?

The first study takes an ImageNet-pretrained ResNet-18, sweeps the branch point across every residual stage and the classification-head depth across one, ten, and twenty layers, and deploys the resulting multi-head …

Spatial And Hydrologic Effects Of Climate Change And Urbanization On Freshwater Fish Communities In North Georgia Watersheds, Mayuko Mizutani

Master's Theses

Urbanization and climate change are altering streamflow and land cover across the southeastern United States, threatening freshwater biodiversity in rivers already burdened by impoundments and habitat loss. I investigated how changes in streamflow and land cover might affect fish community biodiversity in the Etowah River watershed of North Georgia. By combining a dataset of fish collections from 1999 through 2019 with contemporaneous land use and daily streamflow, I was able to model fish community responses to urbanization and climate-driven hydrologic changes and then forecast fish community structure under multiple CMIP6 global climate models and greenhouse gas emissions scenarios (SSP2-4.5 and …

Federated Learning For Early Medical Diagnosis: Enhanced Diabetic Retinopathy Detection In Smart Healthcare, Mohammad Nasajpour Esfahani

Master's Theses

This thesis investigates the role of federated learning as a privacy-preserving solution for modern healthcare challenges. In traditional machine learning, sensitive medical data must be centralized for model training, raising concerns about privacy, security, and regulatory compliance. Federated learning offers an alternative by allowing hospitals, clinics, and personal health devices to collaboratively train shared models without exchanging raw patient data. The study first explores how federated learning is being used across various healthcare domains, including cancer detection, medical imaging, and disease prediction— highlighting its potential to support secure collaboration across institutions. It addresses key benefits such as data privacy, scalability, …

Bridging The Gap: A Qualitative Case Study Of Pre-K Teachers' Literacy Professional Development Needs In The Context Of Georgia's Early Literacy Act (Hb 538), Deborah Lissimore

Dissertations

Abstract

The purpose of this qualitative case study was to explore how school-based pre-K teachers in Georgia perceived their literacy professional development needs within the context of the Georgia Early Literacy Act, House Bill 538, and to examine the role of teacher leadership in supporting their professional learning. Although the Act established evidence-based literacy requirements and professional learning expectations for kindergarten through third grade educators, comparable supports for school-based pre-K teachers were not clearly defined. Participants included five certified pre-K teachers employed in a Georgia public school district. Data were collected through semi-structured interviews and researcher field notes, with member …

Hope Kit Program, Monica Reuber

Capstone Experience: Master of Public Health

Suicide is a leading cause of death in adolescents and young adults, with a disproportionate burden of those deaths in rural areas such as Kansas. High rates of depressive symptoms, suicidal thoughts, and suicidal attempts, combined with a shortage of mental health providers, emphasize the need for community-based intervention.

This capstone is designed to develop a plan for Hope Kits, a proposed suicide prevention program, among youth in grades 7-12 in Sheridan County, Kansas to improve coping skills, promote help-seeking behavior, and reduce suicide risks.

A logic model guides the program development, which aligns with available literature and Social Cognitive …

Mono Gold: An Informal Account Of The Geology, Production, And History Of Mono County Gold And Silver Mining Districts, D. D. Trent

Eastern Sierra History Journal

Mono Gold explores the mining production, technology, and history of the Eastern Sierra, with a special focus on Mono County. Author Dee Trent, a geologist, spent decades visiting, researching, and photographing each of the mining operations discussed in this book-length monograph.

Tailoring The Stereotype Of Asian Femininity: Nancy Kwan, The Qipao, And 1960s Hollywood, Jing Yang

Film and Media Studies (MA) Theses

This article asks the following questions: First, whether or not Kwan, and her qipaos, created new stereotypes of Asian women, or whether they, in fact, customarily represented within restricted versions of Asian femininity already available within mainstream, dominant Western culture of early 1960s Hollywood films. That is, this article seeks to investigate why Kwan, and her qipaos, in fact, became so culturally productive at that moment of historical time. Second, this article further seeks to explore the ways in which the qipao continued to enable Nancy Kwan to represent to mainstream Western, Hollywood-based audiences, uniquely, greatly, or importantly different versions …

Rural/Urban Disparities In Utilization Of Diabetes Self-Management Training (Dsmt) To The Fee-For-Service Medicare Population, 2017–2024, Wanying Zhu, Aleksandr Taraskin, Jeffrerey Talbert

Rural & Underserved Health Research Center Publications

Key Report Highlights

• A significant rural DSMT access gap exists. Rural beneficiaries accounted for 20.1% of Medicare beneficiaries with diabetes but only 7.8% of DSMT participants.

• Geographic availability remains limited. Only 16.8% of counties with DSMT utilization were rural.

• Access, not demand, appears to be the primary challenge. Rural counties offering DSMT achieved utilization rates more than twice those observed in urban counties (6.0% vs. 2.5%).

• Expanding rural DSMT capacity may represent a high-impact opportunity to improve diabetes self-management support among underserved Medicare beneficiaries.

Online Group Neurobehavioral Therapy (Nbt) For Veterans With Epilepsy And Major Depressive Disorder (Mdd), Melissa F. Fadipe

Dissertations and Theses (Open Access)

Background: Veterans with epilepsy experience high rates of psychiatric comorbidity, most commonly major depressive disorder (MDD). Barriers to accessing mental health care—including geographic distance, transportation limitations related to seizure-related driving restrictions, and fragmented care between neurology and psychiatry, contribute to the underdiagnosis and undertreatment of MDD in this population. Neurobehavioral Therapy (NBT), a Cognitive Behavioral Therapy (CBT)-informed psychotherapy developed for individuals with seizures, has demonstrated benefits for psychological distress and quality of life. Internet-based interventions and short message service (SMS) text messaging offer promising strategies to address access barriers; however, limited research has examined the feasibility and acceptability of delivering …

Development And Testing Of A Computer Vision Pose Estimation System For Planar Mobile Robots, Andrew Jones

Master's Theses

This thesis details the development and testing of a computer vision-based real-time pose estimation system for differential drive robots. A single camera with a fisheye lens is used to locate ArUco markers placed at fixed locations and attached to robots. Using the OpenCV library, the Perspective-n-Point (PnP) problem is solved to facilitate the transformation of 2-D robot positions in an image to world-frame coordinates. An analytical solution is presented to estimate robot poses based on a single PnP solution, rather than solving the PnP problem for each pose estimate. Pose information is relayed to individual robots using a multi-microcontroller architecture …

Worldwide Innovative Network Consortium: Building A Common Global Cancer Database., Farhood Farahnak, Wafik S El-Deiry, Yves A Lussier, Razelle Kurzrock, Shai Magidi, Catherine Bresson, Shirin A Enger, Jia Liu, Jair Bar, Jeremy L Warner, Tobias Meissner, Eitan Rubin, Jens Rueter, Himabindu Gaddipati, Mandar Kulkarni, Zhen Chen, Sewanti Limaye, Rachel Elsey, Brenda M Rubenstein, Anthony M Joshua, Humaid O Al-Shamsi, Khaled M Musallam, Fanny Wunder, Jacques Raynaud, Guy Berchem, Manon Gantenbein, Amal Al Omari, Said Dermime, Hikmat Abdel-Razeq, Pierre Saintigny, Andrés Cervantes, Roger R Reddel, Adel T Aref, Juan Martin-Liberal, Conxi Lázaro, David Cordero Romera, Marina Sekacheva, Raanan Berger, C S Pramesh, Ioana Berindan-Neagoe, Eugenia Girda, Alejandro Piris-Gimenez, Carol J Farhangfar, Mohammed E Salem, Rodrigo Dienstmann, Ramon Salazar, Naftali Z Frankel, Zachary Batist, Yuri Quintana, Gerald Batist

Faculty Research 2026

This review shares the ongoing work of the global Worldwide Innovative Network (WIN) Consortium for Precision Medicine to synthesize emerging cancer treatment data and to define the requirements for a common global cancer database that can truly support precision oncology. We performed a narrative review of emerging cancer treatment data, molecular profiling technologies, and existing clinicogenomic databases, focusing on how tumors are characterized, how subgroups are defined, and how demographic, lifestyle, and environmental factors are captured. The growth in molecular profiling technologies and the development of new targeted therapies are transforming cancer care. Tumors, regardless of tissue origin, are increasingly …

The Nature Of Human Trafficking Enterprises: Analysis Of U.S. And International Prosecutions--And The Path Forward, Jay Albanese

Dignity: A Journal of Analysis of Exploitation and Violence

The primary objective of this research is to develop a description and typology of the nature of serious cases of human trafficking and how traffickers, their victims, and consumers (the demand) overlap and interact across locations. This study examines known human trafficking enterprises for which sufficient evidence has been obtained to result in prosecution. These are also serious cases because US federal and international prosecutions result when the offenses are interstate or international in scope. Using a sample of US cases prosecuted over three calendar years (2021-2024), combined with an international sample of cases, an effort is made to develop …

Sex Buying, Sex Trafficking, And Organized Crime: Introduction To A Special Issue, Marcel Van Der Watt, John A. Winterdyk

Dignity: A Journal of Analysis of Exploitation and Violence

No abstract provided.

Disrupting Transnational Human Trafficking Networks: A Practitioner's Perspective On Intelligence-Driven, Offender-Focused Strategies, Rochelle Keyhan

Dignity: A Journal of Analysis of Exploitation and Violence

This article examines human trafficking through the lens of organized crime and explores how this perspective can be applied to contemporary trafficking cases in the United States. While trafficking is often prosecuted as an isolated criminal act, many incidents are linked to larger transnational and domestic organized crime networks. The discussion highlights the activities of notorious syndicates, including international cartels, street gangs, and well-funded networks of sex buyers, demonstrating how these entities exploit vulnerable populations for profit. Reframing human trafficking as a sector within organized crime shifts investigative and prosecutorial strategies away from victim-dependent models, which often require survivors to …

A Thickness-Invariant Origami Robot With Integrated Actuation And Multimodel Locomotion, Larry L. Howell, Davis Wing, Nathan Usevitch, Sam Bridge, William Bowler

Faculty Publications

ABSTRACT Origami robots possess the potential for advanced reconfigurability in various contexts and environments. This paper describes and demonstrates the function of an origami robot following a thickness-invariant version of the Yoshimura tessellation. This thickness-invariance allows for the simple folding pattern to be expanded vertically, allowing all robotics components to be housed within the panels of the robot without impacting the functional relationships between folds of the pattern, or requiring other, more complex forms of thickness accommodation. The mathematics and engineering to create such a robot are presented to enable the use of these techniques in creating other origami-based robots. …

Polyphenol Diet And Exercise As Neuroprotection From Effects Of Alzheimer's Disease, Michelle Morgan

Loma Linda University Electronic Theses, Dissertations & Projects

Healthy non-pharmacological lifestyle factors, such as regular physical exercise and a dietary supplementation, have been shown to significantly improve cognitive outcomes over time compared to a more sedentary lifestyle and poor diet. Furthermore, exercise may serve as a potential protective factor in attenuating the effects associated with cognitive decline that are characteristic of neurodegenerative disorders, such as Alzheimer's disease (AD). Further, evidence indicates that certain diet interventions can also attenuate the effects of neurodegeneration and positively impact longevity. Supplementation of polyphenols, such as ellagic acid (EA), which are abundant in pomegranate juice, may help provide neuroprotective benefits and elicit a …

Comparison Of Lower-Extremity Coordination Patterns During Countermovement Jumps Between Dancers And Nondancers, Danielle Joseph

Honors Theses

Jumping is a skill essential to several different sports, including dance. For athletes in jump-dominant sports, jump strategies can vary with differences in task demands while jump performances are similar. The countermovement jump (CMJ) has been utilized to analyze jumps because of their reliable indications of power and neuromuscular function. Methods of describing jump strategies using CMJ, such as force plate metrics, vector coding analysis, and coordination phases, have been used to describe the jumps of athletes in jump dominant sports such as basketball and volleyball. However, less jump strategy research has been done on dancers, especially to describe the …

A Systematized Review Of Parent Experiences With Special Education Placement In Rural Communities, Madeline Bishop

Educational Specialist, 2020-current

Parents of children enrolled in special education programs often face unique challenges, particularly in rural settings where access to resources and communication with school personnel can be limited. This systematized review explores how rural school systems can best support parents during the special education process. A systematized review of articles published between 2005 and 2025 was conducted. A thematic analysis of 20 articles revealed 3 themes following the review: benefits and barriers to rural special education, professional relationships, and parents’ strain and appreciation. Overall findings highlight the importance of the experiences between parents and school personnel regarding special education. Limited …

Finding Balance: School-Based Yoga Interventions And Their Alignment Within Multi-Tiered Systems Of Support, Ursula Vogt

Educational Specialist, 2020-current

School-based interventions that support emotional regulation and student well-being are increasingly emphasized within Multi-Tiered Systems of Support (MTSS). Yoga has emerged as a potential school-based practice; however, its outcomes, alignment with MTSS frameworks, and implementation characteristics remain unclear. This systematized review examined (a) psychological, emotional, and behavioral outcomes associated with school-based yoga interventions, (b) their alignment with Tier 1 and Tier 2 supports, and (c) implementation characteristics that support feasibility in school settings. A systematic search identified 21 U.S.-based studies, which were analyzed using thematic analysis. Findings indicated that yoga interventions were associated with improvements in emotional regulation, stress and …

Supporting Every Student: Optimizing School-Based Mental Health Services For Students With Intellectual Disabilities, Sarah K. Eggleston

Educational Specialist, 2020-current

Youth with intellectual disabilities (ID) are at considerably greater risk of developing mental health problems compared with the general population; however, their needs are less likely to be identified, and they often face barriers to accessing quality mental health care. School-based mental health professionals (SBMHPs) are uniquely positioned to support students within their natural learning environments, where many common barriers to service provision have been removed. The present study examined the current state of practice among SBMHPs in Virginia in identifying and supporting the needs of students with ID, as well as SBMHPs’ training experiences. An online cross-sectional, mixed-methods survey …

Students With Borderline Intellectual Functioning: Dropping The Label And Reducing The ‘Line’, Samantha M. Sitzman

Educational Specialist, 2020-current

Students with Borderline Intellectual Functioning (BIF) often experience significant academic and social-emotional difficulties while remaining ineligible for many formal special education services, creating challenges in identifying and supporting this population within school settings. This convergent mixed methods study examined school psychologists’ perspectives regarding the challenges experienced by students with BIF, the interventions commonly used to support them, and the systemic barriers associated with service delivery. Twenty-two practicing school psychologists in Virginia completed a researcher-developed survey containing quantitative and qualitative items. Quantitative data were analyzed using descriptive statistics, and qualitative responses were analyzed using thematic analysis.

Findings indicated that school psychologists …

Predictors Of Pre-Service Teachers’ Strength-Based Teaching Practices With Els (English Learners), Stephany M. Panza

Electronic Theses and Dissertations

The increasing number of English learners (ELs) in U.S. school classrooms highlights the importance of utilizing pedagogical approaches that build upon their preexisting cultural and linguistic strengths. Strength-based teaching practices, grounded in positive psychology represent a systems-levels approach to promoting positive academic and socio-emotional outcomes for ELs. In this study, a sample of 21 pre-service teachers attending Northeastern teacher preparation programs completed a series of surveys identifying their EL teaching experience, EL coursework, multicultural attitudes, and intercultural self-efficacy. These predictors were examined to determine their cumulative impact and unique contributions to an adapted Strength-Based Practices Inventory (SBPI), which captured pre-service …

Trace Element Concentrations In Tissues And Otoliths Of Fishes From Artificial Reefs In The Northern Gulf Of Mexico: The Role Of Size, Age, And Trophic Position, Blaine Savoie

LSU New Orleans Theses and Dissertations

Nearshore artificial reefs and fishes relying on them to forage and refuge can be susceptible to trace element (TE) pollutants from anthropogenic sources. Although some TE are essential, higher concentrations can cause detrimental effects and concern regarding consumption. This study assesses TE accumulation in nearshore reef fishes in the northern Gulf of Mexico, a region influenced by coastal riverine discharge, where fishing has socioeconomic importance. Five fish species from six eco-reefs were collected and analyzed for TE. An inductively coupled plasma mass spectrometer was used to analyze the TE concentrations of muscle, liver, and otoliths. TE concentrations of tissues and …

Evaluating Fish Assemblages At An Early-Stage Living Shoreline Project In Lake Pontchartrain, Collin Glaser

LSU New Orleans Theses and Dissertations

Living shorelines are an increasingly popular restoration approach for reducing erosion while improving habitat quality. The Bucktown Living Shoreline Project is a large-scale restoration effort along the southern shore of Lake Pontchartrain aimed at enhancing coastal resilience and restoring historic marsh habitat. This thesis evaluated early fish assemblage response to the Bucktown Living Shoreline Project over one year and placed those assemblages within the broader historical context of Lake Pontchartrain. Monthly sampling was conducted at the living shoreline and an adjacent riprap control site using seines, cast nets, and minnow traps. Fish assemblage structure was not significantly different between sites. …

Continuous Authentication For Industrial System Access: Evaluating Bluetooth Low Energy Direction Finding And Channel Sounding For Tailgating And Relay Attacks, Mitchell Mennelle

LSU New Orleans Theses and Dissertations

In physical access control, authentication is often viewed as a one-time event, where, once an authorized user crosses a protected boundary, downstream systems assume the user remains physically present. Tailgating and relay attacks violate this assumption. In this thesis we propose a continuous authentication layer based on two Bluetooth Low Energy spatial signals. Angle of Arrival direction finding follows the trail of a worn credential to determine when an operator exits a work zone. Bluetooth Channel Sounding measures a physical property of the radio path and verifies distance during stationary periods. Limiting Relay Attacks with Event-Driven Distance Verification. A stream …

On The Paces Of Artaud: An Attempt To Examine An Afro-Futurism Template Through The Lens Of Theatre Of Cruelty, Nihal Hassan Abdulla

LSU New Orleans Theses and Dissertations

This thesis analyzes the scenic rationale of Baby Love, highlighting its poetic stage language and metaphoric choices. Referencing Artaud, it investigates how scenery challenges conventional theatre and demonstrates the feasibility of Afro-futurist aesthetics within the Theatre of Cruelty. The approach prioritizes sensory communication, following Artaud’s emphasis on stage techniques.

Referring to the influence of Artaud’s intense artistic milieu, which contributed to the crystallization of the concept of Cruelty, and identifying methodologies used in developing my design metaphor.

Tracing the emergence of the Afrocentric movement in America reveals that the literary roots of Afro-futurism were established in cyberculture a bit earlier …