Digital Commons Network^™

Behind The Screen: Exploring How Undergraduate Students Experience Sense Of Belonging In Online Learning Environments In The United States, Grace Ellen Kiersznowski

ETDs from 2020-2029

Enrollment in online courses in higher education has been rising rapidly over the past couple of decades and has accelerated since the COVID-19 pandemic. This has made higher learning more accessible for students who would otherwise have difficulty earning a degree. Online education poses many barriers to students’ development of a sense of belonging, something research has been found to be of great importance to student success and well-being. Relatively little was known about students’ sense of belonging in online learning environments prior to the pandemic. Since the pandemic, online education has undergone major changes, changing the landscape in a …

Bone Marrow Adiposity, Obesity, And Tumor Burden In Newly Diagnosed Multiple Myeloma, Ananya Deshpande

ETDs from 2020-2029

Multiple Myeloma (MM) is the second most common hematologic malignancy in the United States. It is characterized by the accumulation of clonally expanded plasma cells in the bone marrow, which leads to end organ damage and myeloma-defining events requiring treatment. The only modifiable risk factor for MM is obesity. However, associations between obesity, bone marrow adipocytes, and tumor burden at MM diagnosis remain unclear. We evaluated associations of bone marrow adipocytes, body mass index (BMI), and clinical features of tumor burden among 168 patients with histologically confirmed newly diagnosed multiple myeloma (NDMM) enrolled in the Integrative Molecular and Genetic Epidemiology …

The Guardian Order, Jennifer Jayden Foster

ETDs from 2020-2029

The Guardian Order is a young adult fantasy novel set in the sacred land of Enyimel, a sanctuary sustained by magic and ancestral guardianship. The narrative follows siblings Kairos and Verena Sepher as they confront both an ecological catastrophe and a deeply personal rupture within their family. When a blight corrupts the land and destabilizes its magic, they are forced into a reluctant alliance to save their people. However, the external crisis mirrors an internal one: a lifetime of unequal parental expectations has shaped them into ideological opposites. Kairos embraces the heroic destiny prepared for him, while Verena resists a …

Why Gentlemen Prefer Chi Omega: The Impact Of The Sorority Tier System On The Member Experience, Cameron Pannell

ETDs from 2020-2029

Sorority life is situated in a social hierarchy, in which the hierarchical tiers are determined by sorority women’s feminine worth. The hierarchical system in sorority life originates from women’s pursuit of hegemonic femininity. This study utilized semi-structured interviews of eight sorority women to fulfill the purpose of this study, which was to investigate how the sorority tier system shapes members’ experiences in Greek life and in college. Data was analyzed using thematic analysis. The findings of this study reveal that access to top-tier chapters is limited to elite women; women choose their chapter either for deep connections or for reputation …

Caring Through Cancer: The Role Of Stress And Social Support In The Lives Of Caregivers Diagnosed With Cancer, Antoinette Shantay Williams

ETDs from 2020-2029

Caregivers living with cancer face overlapping burdens that are often overlooked in research, policy, and practice, despite the profound implications for their mental health and the care they provide. The main objective of this dissertation is to examine how cancer status, gender, and social support intersect to influence the number of poor mental health days reported by caregivers in the United States and a U.S. territory. Specifically, this study assesses differences in poor mental health days between caregivers with and without cancer and examines whether gender and social support independently and jointly moderate this potential association. Using 2022-2023 data from …

Challenges Of Lutetium-177 Metastable Concentration In Radiopharmaceutical Waste, Cameron Robert Liggitt

ETDs from 2020-2029

Lutetium-177 (Lu-177) is an upcoming radiopharmaceutical with commercial use recently approved for cancer treatment by the Federal Drug Administration (FDA). During production, a contaminate, Lutetium-177 metastable (Lu-177m), can also be produced. The concentration of Lu-177m will vary greatly depending on the production method. One of the largest problems posed by this metastable contaminant is disposal challenges due to its longer half-life and more energetic decay process. This research models the potential for the decay in storage method to be used for disposal of Lu-177 waste based on the concentration of Lu-177m. Utilizing varying ratios of metastable per therapeutic dose, this …

Nazi Propaganda In The United States Prior To American Entry Into The Second World War, Trenton Alexander Bowen

ETDs from 2020-2029

This thesis examines the multifaceted nature of Nazi propaganda in the United States during the interwar years. I argue that these publications were not just a parade of familiar cliches about Jews or the wisdom of American neutrality. Rather, they and the organizations that disseminated them presented a jumbled patchwork of lies, hypocritical claims, contradictions, and distortions. In other words, I argue that Nazi propaganda was so dangerous in the United States because it relied on mixed and confusing messaging, and in turn, on the ignorance of Americans about the nature of the “new Germany.”

Shaping Fibroblast Fate To Drive Fibrotic Remodeling In Pulmonary Fibrosis: Decoding S100a4, Spring Li

ETDs from 2020-2029

Idiopathic pulmonary fibrosis (IPF) is a progressive interstitial lung disease characterized by persistent fibroblast activation, excessive extracellular matrix (ECM) deposition, and irreversible remodeling of lung architecture. A central feature of disease progression is the accumulation of fibroblasts that evade apoptosis and persist in a pathologically activated state. However, the molecular mechanisms that sustain this aberrant phenotype remain incompletely understood. The calcium-binding protein S100A4 has been implicated in fibrotic processes, but its role in orchestrating fibroblast fate and profibrotic behavior has not been fully defined, particularly with respect to its influence on fibroblast survival and activation in IPF. In the first …

Unintentional Gun Injury In Children: Firearm Safety Knowledge, Intention, And Behavior And Psychological Moderators That Predict Unsafe Firearm Use, Yixin Wang

ETDs from 2020-2029

In the United States, 4,752 children under age 19 died from firearm injuries in 2021. Among children younger than 14, 13% of firearm-related deaths were unintentional. In ad-dition, approximately 40% of children lived in households with firearms in 2021, and in many states, children may legally hunt without adult supervision after completing hunter education training. Although knowledge-based firearm safety education programs have been developed, existing interventions have shown limited effectiveness in improving chil-dren’s firearm safety behaviors. In response, the present study examined children’s firearm safety performance through the lens of the Theory of Planned Behavior and developmental factors relevant to …

The Medicalization Of Rapists In Psychiatry From 2000-2024, Lily Plowden

ETDs from 2020-2029

The process of human problems coming to be defined as medical conditions and thus under the purview of medical professionals is called medicalization. This study examines how psychiatrists medicalize perpetrators of sexual violence, looking particularly at debates around whether to include a new disorder, Paraphilic Coercive Disorder, in the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition. Using a content analysis of n=102 articles, it finds that discussions of the pathology of sexual violence perpetration were prevalent among psychiatric journals from 2000-2024. Psychiatrists medicalize rapists through three pathways: advocating for a new medical disorder; attributing the cause of sexual …

Investigation Of The Noise Reduction Performance Of A Commercial Active Noise Canceling (Anc) Device, Eli O'Connor

ETDs from 2020-2029

It is estimated that 22 million workers are exposed to potentially damaging noise at work each year. According to Occupational Safety and Health Administration (OSHA), active noise canceling (ANC) devices are generally not adequate to use for hearing protection in an occupation setting. This study examined the noise attenuation of AirPod Pros 3, to investigate how the device performs at different sound levels. AirPods Pros 3 and a CARL mannequin were used for this study. Two dosimeters were placed inside the mannequin’s right and left ear canals. A speaker played pink noise at external ear sound levels of 90, 95, …

Evaluating The Service Life Of A Respirator Cartridge When Exposed To Various Volatile Organic Compounds, Neha Murad Alwani

ETDs from 2020-2029

Inhalation is the most common exposure pathway. With the significant presence of respiratory exposure, respirator cartridges are widely used as personal protective equipment (PPE) to reduce exposure to gases, vapors, and volatile organic compounds (VOCs). This study evaluated the breakthrough time of respirator cartridges under various VOC environments commonly encountered in beauty salons and automotive repair shops. Breakthrough time is the duration a respirator cartridge can provide protection before contaminants can be inhaled and the respirator cartridge is no longer effective. The breakthrough time of three VOCs was examined: acetone, toluene, and m-xylene. Using a custom designed test chamber equipped …

Potential Noise Exposure During Post-Trip Inspection Among Commercial Freight Truck Operators, Makayla Ashley Baker

ETDs from 2020-2029

Noise exposure is one of the most common occupational hazards. Transportation and mate-rial moving occupations reported exposure to noise levels that ranged from moderate (81.4%), loud (15.9%), to very loud (< 0.5%). This study aimed to assess the working noise environment of freight truck operators while completing post-trip inspection. Area noise sampling was performed while freight truck engines were in idle states. A type 2 sound level meter (SLM) was utilized to record noise levels, positioned at rear of the truck cab with the microphone towards the source at a height of 5 feet. The SLM was set up for three noise metrics: Occupational Safety and Health Administration’s (OSHA) permissible exposure limit (PEL) and Hearing Conservation (HC) action level in addition to the American Conference of Governmental Industrial Hygienists (ACGIH) threshold limit value (TLV). 4 trucks were sampled and for each truck, recording duration lasted approximately 15 minutes, reflecting the time spent conducting post inspections. Data collection included the average sound level (Lavg), A-weighted equivalent continuous sound level (LAeq), and maximum A-weighted sound level (LASmax). The measurements were repeated 3 times for each truck and the data were averaged. Lavg was compared to the three respective occupa-tional exposure limits (OELs), assuming a worst-case scenario. Lavg values of each sampling round among four trucks obtained using the OSHA PEL values ranged from 45.1 to 51.4 dB(A), OSHA HC criteria ranged from 37.8 to 51.9 dB(A), and ACGIH TLV values ranged from 55.5 to 67.9 dB(A). The average LAeq of three sampling rounds of the four trucks ranged from 75.4 to 76.9 dB(A) with Truck 3 having the highest average level. The average LASmax of three sampling rounds ranged from 79.3 to 92.0 dB(A), with Truck 3 having the highest average level. Though none of Lavg averages exceeded the respective OELs, Truck 3 under the ACGIH TLV criterion had the highest Lavg at 51.6.9 dB(A), LAeq at 76.9 dB(A), as well as the highest LASmax at 92.0 dB(A). The elevated sound level may be attributed to engine turnover from automated shutoff in prolonged idle states. Further studies need be conducted to investigate other potential factors such as air-brake systems, engine/cab model and age.

Clinical Validation Of Tabpfn-2.5: Zero-Shot Performance, Data-Scarce Robustness, And Distilled Models For Real-Time Clinical Decision Support, Baraa Aljawawdeh

ETDs from 2020-2029

Accurate clinical risk prediction plays an important role in improving patient outcomes, particularly in perioperative settings where early intervention can influence care decisions. Although machine learning has shown promising results using electronic health record (EHR) data, its use in clinical practice is often limited by complex development processes, the need for hyperparameter tuning, and variability in performance across datasets. These challenges are especially relevant in data-scarce clinical settings. This thesis evaluates TabPFN-2.5, a transformer-based tabular foundation model designed to perform classification without dataset-specific training. The model was applied to two real-world perioperative prediction tasks: unplanned care escalation (UCE) following post-anesthesia …

Leadership In Parent Engagement: A Phenomenological Study Of School Principals’ Preparedness To Lead Parent Engagement, Aqila Malpass

ETDs from 2020-2029

Researchers consistently report a strong positive correlation between parent engagement and student achievement. When parents are engaged, students benefit in all grade levels and backgrounds (Auerbach, 2010; Epstein, 2011; Henderson & Mapp, 2002; Jeynes, 2005; Weiss et al., 2010). Policy-makers and educators acknowledge the influence of parent engagement on student outcomes (Mapp, 2012). Consequently, communities need effective parent engagement systems and structures within their schools. Principals should understand parent engagement and be equipped to lead its implementation in their schools. It is also necessary to identify key training and support conditions that help to equip principals to lead effective parent …

Learnable Structured Attention For Student-Aware Knowledge Distillation In Dense Prediction, Chen Liu

ETDs from 2020-2029

Dense prediction tasks, including object detection and semantic segmentation, require models to produce structured predictions and are widely used in real-world vision applications. Although deep networks have achieved strong performance on these tasks, their high computational cost limits deployment on resource-constrained systems such as autonomous-driving vehicles. Knowledge distillation (KD) addresses this issue by transferring knowledge from a large teacher model to a compact student model. However, existing distillation methods for dense prediction face greater challenges than those for classification due to the more complex task requirements. To overcome the challenges, this thesis presents a unified study of adaptive distillation for …

Flexible Load Communication Protocol Mapping Guide: Ieee 2030.5 To Ansi/Cta-2045, Joseph D'Ambrosia

Dissertations and Theses

As more variable renewable energy resources are connected to the grid, new challenges emerge for grid operators. Demand response programs can provide an additional degree of freedom to grid operators, by modulating the patterns of electricity consumption of residential, customer-owned, flexible loads. The success of demand response programs requires robust and reliable systems of communication between grid operators and flexible loads.

The ANSI/CTA-2045 communication protocol enables customer-owned devices to act as flexible loads. The SEP 2.0/IEEE 2030.5 communication protocol is used to manage distributed energy resources, including flexible loads. Interoperability can be realized by mapping ANSI/CTA-2045 and SEP 2.0/IEEE 2030.5 …

Beyond Predation: Invasive Green Crab (Carcinus Maenas) Alters Juvenile Pacific Oyster (Magallana Gigas) Function And Survival Across Environmental Gradients, Isabel Helena Mize

Dissertations and Theses

The establishment of the invasive green crab, Carcinus maenas, creates ecological and economic impacts in estuaries, particularly through predation on bivalves and alteration of species interactions. This thesis evaluates the direct predation, non-consumptive predator presence, and spatial management implications of C. maenas impacts on filtration rate of juvenile Pacific oysters, Magallana gigas, across laboratory, field, and GIS-based vulnerability mapping approaches. In laboratory conditions, clearance rates of M. gigas were measured over 72 hours across two temperatures (14°C and 18°C) and predator treatments including C. maenas, Pacific rock crab (Romaleon antennarium), both predators together, and a …

Low Cost Lightning Localization At Microwave Frequencies, Bradley Glaubitz

Dissertations and Theses

High precision lightning localization is essential for atmospheric research and public safety, yet the high cost of traditional VLF/LF systems restricts high resolution detection primarily to well funded agencies. Furthermore, conventional low frequency receivers often overlook microwave frequency emissions associated with lightning leader development. This thesis proposes a compact, low cost microwave frequency localization system operating in the 1.42 GHz band to provide an accessible alternative for high resolution mapping. The methodology utilizes an ARM Cortex M0+ microcontroller and a triggered 64 MHz 32 bit counter synchronized to a GPS Pulse Per Second (PPS) signal, achieving a temporal resolution of …

Kernelizing Protein Interaction Languages: Spectral Approximations And Random Fourier Features, Aishik Ghosh

Master’s Dissertations

Protein-peptide interactions play an important role in many biological phenomena, spanning adaptive immunity to disease pathology. In the Sliding Window Interaction Grammar (SWING) framework, interactions are represented as sequences of biochemical tokens embedded using Doc2Vec, allowing robust generalisation to unobserved MHC alleles. However, classification remains limited to a single Euclidean feature space that is incapable of resolving binding landscapes. This dissertation develops SWING for four distinct kernel types: Gaussian, Laplacian, anisotropic (ARD), and the Spectral Mixture (SM) kernel, each approximated using scalable Random Fourier Features. The SM kernel incorporates prior knowledge about secondary structure into its spectral density as biological …

Parental Perspectives On Their Children’S Mental Health Changes During And After The Covid-19 Pandemic In A Florida Community, Brianna Yumul

Walden Dissertations and Doctoral Studies

No abstract provided.

Burnout Reduction And Employee Engagement Strategies Used By Some Human Resources Outsourcing Leaders, Anthony Ramel Kilgore

Walden Dissertations and Doctoral Studies

No abstract provided.

College Teachers' And Students' Perceptions Of Consensual Sexual Relations, Thelene Adette Smith

Walden Dissertations and Doctoral Studies

No abstract provided.

The Lived Experience Of Black Women With Depression In New Jersey, Ngozi Grace Igwe

Walden Dissertations and Doctoral Studies

No abstract provided.

Psycho-Behavioral And Psychosocial Factors Influencing Childhood Obesity In The United States, Nadia Ntori Nkansah

Walden Dissertations and Doctoral Studies

No abstract provided.

Young Adults Describe Their Lived Experiences Of Adverse Childhood Experiences Through The Lens Of A Secure Attachment, Martin Weinberger

Walden Dissertations and Doctoral Studies

No abstract provided.

Hiv Preexposure Prophylaxis (Prep) Satisfaction Amongst Female Sex Workers And Men Who Have Sex With Men In Cameroon, Zacheaus Zeh Akiy

Walden Dissertations and Doctoral Studies

No abstract provided.

The Lived Experiences Of African American Male Baby Boomers Who Engaged In Teletherapy Post-Covid-19, Amber L. Dixon

Walden Dissertations and Doctoral Studies

No abstract provided.

Coming To The Table: How Black Mamas Resist And Reorganize The Racialized Educational Terrain In Community, Moriah Lynn Johnson

Dissertations

Black homeschooling has grown significantly among African American families, yet existing scholarship has not fully theorized how race, gender, and institutional power operate within homeschooling communities. My dissertation examines how Black mothers resist and reorganize a racialized educational terrain that extends beyond conventional schooling into homeschooling spaces. Drawing on Diamond’s (2006) racialized educational terrain framework, I introduce the Racialized Homeschooling Terrain (RHT) — an original conceptual framework that demonstrates how homeschooling spaces are racialized in similar and distinct ways. This framework centers Black maternal agency, as moms interpret, resist, and reorganize homeschooling spaces to construct communal homeplace. Using a qualitative, …

Fear Appeal Advertising As A Tool For Preventative Medicine And Chronic Disease Mitigation, Samuel J. Moore

Undergraduate Honors Theses

Chronic disease refers broadly to a group of diseases that develop and progress as individuals age, that last 1 or more years, and that require ongoing medical attention or limit activities of daily living, or both (“About chronic diseases,” 2026). Chronic disease is most often associated with years of compounding effects of poor nutrition and physical inactivity. Since negative emotion-based advertising, also known as “fear campaigns,” have been shown to be effective forms of communication for other health related topics (Huang et al, 2017), we sought to test a fear campaign’s potential to discourage unhealthy physical activity practices in young …