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An Exploration Of Providers’ Perspectives On The Impact Of Incarceration-Related Stigma On Formerly Incarcerated Women’S Mental Health, Megan A. Fields

Doctoral Dissertations

This dissertation explored mental health providers’ perspectives about how incarceration-related stigma impacts formerly incarcerated women’s mental health, and what interventions are being implemented to address these impacts. Previous studies about impacts of incarceration have focused mainly on the perspectives of justice-involved individuals, leaving a gap in understanding how mental health providers perceive and respond to these challenges from a clinical lens. Five participants qualified for inclusion in the study and participated in semi-structured interviews. The researcher analyzed these interviews using an interpretative phenomenological analysis (IPA) framework. Participants described noticing clients endorsing mental health symptoms aligned with anxiety and depression resulting …

Improving Adherence To The Ticket-To-Test C. Difficile Protocol In A Medical-Surgical Microsystem, Georgette Marie D. Lim

Master's Projects and Capstones

Problem: Poor adherence to the ticket-to-test protocol on the 3 South unit led to unnecessary C. difficile testing, inappropriate isolation, and workflow variation. These issues mirror national concerns about over-testing and misdiagnosis, which can inflate hospital‑onset C. difficile rates and increase costs.

Context: This project was implemented on a medical‑surgical unit, a team with a strong culture of collaboration, education, and engagement in quality improvement. The unit benefits from structured oversight through the C. difficile committee, which reports to the performance improvement team.

Interventions: The Institute for Healthcare Improvement Model for Improvement guided four PDSA cycles, with …

Knowledge, Attitudes, And Practices (Kap) Of Parents Regarding The Prevention And Control Of Childhood Iron Deficiency Anemia In Egypt: A Cross-Sectional Study, Omnia Soliman

Theses and Dissertations

Childhood Iron Deficiency Anemia (IDA) remains a major public health challenge in Egypt, where its persistently high and rising prevalence carries substantial consequences for child growth, cognitive development, immunity, and long-term health outcomes. Globally, approximately 40% of children aged 6–59 months are affected by anemia (World Health Organization, 2025), and Egypt mirrors this burden, with national data showing a worsening trend in recent years. In Egypt, national strategies have traditionally focused on biomedical interventions such as iron supplementation and food fortification, while less attention has been directed toward behavioral and household-level determinants, particularly parental knowledge, attitudes, and practices (KAP) related …

Impact Of Employment Status And Housing Stability On Tuberculosis Treatment Adherence In Virginia, Samuel Deapeh Worgee

Walden Dissertations and Doctoral Studies

Tuberculosis (TB) cases have resurged in Virginia, yet the structural determinants shaping treatment completion among socioeconomically marginalized populations remain unquantified locally, leaving public health programs without state-specific predictive evidence. Grounded in the World Health Organization's social determinants of health framework, this quantitative, ex post facto study examined how employment status, housing stability, and social risk factors predicted TB treatment completion. De-identified surveillance records for N = 898 adult TB cases reported from 2020 through 2024 were extracted from the Virginia Electronic Disease Surveillance System and analyzed using a multivariable binary logistic regression, controlling for age, sex, race/ethnicity, and radiographic severity …

Distribution Modeling Predicts Pacific Newt (Genus Taricha) Road Mortality Near Remote Lakes In Santa Clara County, California, Anna Petrosky

Master's Theses

The California newt (Taricha torosa) is listed as a State Species of Special Concern across its southern range due to habitat degradation and loss, and limited studies indicate it may be experiencing these threats in its northern range as well. This project assesses where the California newt may be encountering roads as migration barriers and experiencing high mortality in western Santa Clara County, California, in an effort to inform future conservation efforts. I conducted surveys of California newt roadkill on roads bordering two reservoirs used as breeding habitat and accessed roadkill data collected by the Lexington Reservoir Newt Patrol. Roadkill …

Quality Improvement Project: Improving Nursing Knowledge And Confidence Of Dysglycemia In Pediatric Oncology Patients, Lindley Abrams

Doctor of Nursing Practice Projects

Treatment-induced dysglycemia is a frequently underrecognized complication of pediatric cancer therapy. Pediatric oncology nurses play a critical role in recognizing and managing dysglycemia; however, limited exposure to specialized dysglycemia education may contribute to gaps in knowledge and confidence. A site needs assessment found that 53% of nurses reported discomfort with glycemia-related concepts, supporting the need for targeted education. The purpose of the project was to evaluate changes in pediatric oncology nurses’ knowledge and confidence in recognizing and responding to treatment-induced dysglycemia. The project aimed to provide a structured educational intervention and measure pre- and post-intervention changes. Newman’s Health as Expanding …

Impact Of Physical Disabilities On Daily Life, Mobility, And Public Health Outcomes Among Internally Displaced Children In Nigeria, Winnifred Obeya-Ekoja

Walden Dissertations and Doctoral Studies

The growing population of internally displaced persons (IDPs) in Nigeria presents significant public health challenges for children with physical disabilities. This study investigated how physical disabilities affect daily life, mobility, access to resources, and health outcomes among internally displaced children in IDP camps in Benue State, Nigeria. Guided by the ecological model of health behavior, the study examined caregivers’ experiences of children’s self-care, daily activities, environmental and interpersonal conditions, sanitation, and access to healthcare. A basic qualitative design used semi-structured interviews with parents and caregivers selected through purposive and snowball sampling. Data were analyzed using Braun and Clarke’s six-phase thematic …

Degree Assortativity And Estimation Of Degree Distribution In A Contact Network Of People Who Inject Drugs, Peter Geissert

Dissertations and Theses

This dissertation analyzes data from a respondent driven sampling (RDS) study of people who inject drugs in Portland, OR.  The objective was to assess assumptions for the use of weighted estimators to estimate a population physical contact (syringe sharing) network degree distribution.

Visualization of degree distribution for social and physical networks, Kolmogorov-Smirnov tests of difference, and kernel tests of equivalence were used for comparison of distributions. Spearman's rho and GAM non-parametric regression models were used to test for association and assess non-monotonic relationship. The validity of Markov chain assumptions for RDS was assessed using a transition matrix, Markov chain graphs, …

Enhancing Hiv Knowledge And Resource Awareness Among Chief Nursing Officers, Susan Louise Cooper Bailey

Walden Dissertations and Doctoral Studies

Human immunodeficiency virus (HIV) remains a significant public health concern in rural communities, where limited specialty care, geographic isolation, transportation barriers, and stigma may delay testing and entry into care. The Texas Panhandle is a geographically expansive rural region served by rural hospitals with limited resources. Although area HIV services are available, they are inconsistently utilized. Although chief nursing officers (CNOs) influence practice and care coordination, knowledge gaps regarding HIV guidelines, prevention strategies, and regional resources may limit identification, referral, and continuity of care. The purpose of this doctor of nursing practice (DNP) project was to determine whether a targeted …

Drug Court Graduation Rates Of African American Males Attending Habilitation Empowerment Accountability Therapy, Tierney President

Walden Dissertations and Doctoral Studies

African American males between the ages of 18 and 29 have lower rates of successful completion in drug court programs compared to other populations, increasing their risk of incarceration and recidivism. This study examined whether participation in the Habilitation Empowerment Accountability Therapy (HEAT) program, a culturally responsive intervention, was associated with improved drug court graduation outcomes among African American male participants. Guided by cognitive behavioral theory, a quantitative retrospective causal-comparative design was used to analyze archival data from 96 African American male participants enrolled in a drug treatment court program in Columbia, Missouri. A chi-square test of independence was conducted …

Healthcare System Barriers To Somali Refugees In Kenya, Zahra Sharif Hashim

Walden Dissertations and Doctoral Studies

Access to health care is a fundamental right of every refugee, yet gaps in implementing Kenya's Refugees Acts of 2006 and 2021 continue to limit access for Somali refugees in Dadaab camp. Existing research has documented resource constraints, movement restrictions, and other barriers to refugee health care, but how policy implementation gaps shape access in Dadaab has not been well explored. The purpose of this qualitative descriptive study was to understand barriers to health care access for Somali refugees resulting from gaps in implementing Kenya's refugee health policies. The narrative policy framework guided the study. Data from semistructured interviews with …

Alzheimer’S Disease And Related Dementias Risk Profiles And Health Literacy Among South Asian Seniors, Sandra A. Kennedy

Dissertations, Theses, and Capstone Projects

Alzheimer’s Disease and Related Dementias (ADRD) pose significant health challenges globally, with South Asian seniors in the United States facing elevated risks due to high rates of cardiovascular disease, diabetes, and limited health literacy. This study assessed dementia literacy and the prevalence of cardiovascular, psychosocial, and lifestyle risk factors among South Asian seniors in New York City, utilizing community-based participatory research (CBPR) principles in collaboration with India Home, a community-based organization. Fifty-six (N=56) South Asian seniors aged 55 and older (M = 69.05, SD = 6.36), primarily of Indian or Bangladeshi origin, participated in the study. Data collection involved a …

The Ramifications Of Covid-19 On Young Adults With Ocd, Clare E. Mcintosh

Dissertations

The coronavirus disease of 2019 (COVID-19) pandemic was a profound event in modern history, contributing to significant disruptions on a societal and individual level. This period of time was marked by elevated uncertainty and fear among individuals. COVID-19 contributed to deterioration in not only physical health but also psychological well-being. One mental health condition frequently under-examined and saturated with misconceptions is obsessive-compulsive disorder. Obsessive-compulsive disorder is a condition characterized by the presence of obsessions and/or compulsions. Intolerance of uncertainty is a core component of the condition, and the pandemic was riddled with unpredictability. The purpose of this study was to …

The Role Of External Factors In Shaping Carbohydrate Conformational Landscapes, Murat Yaman

Dissertations, Theses, and Capstone Projects

Carbohydrates (glycans) are among the most structurally diverse biomolecules and participate in a wide range of biological processes, including molecular recognition, cell adhesion, immune response, host-pathogen interactions, and cellular signaling. Their biological functions are governed by a complex interplay between sequence, stereochemistry, conformational flexibility, and environmental factors. However, the structural heterogeneity and dynamic nature of glycans present significant challenges for both experimental characterization and theoretical modeling. In particular, the relationships between glycan structure, conformational dynamics, and the resulting potential energy surfaces remain incomplete.

This dissertation investigates how external factors modulate the potential energy surfaces of carbohydrates through a combination of …

Data Curation And Integration For Cancer Cell Line Pharmacogenomics Analysis, Meric Kinali

Graduate Masters Theses

Cancer cell lines are essential resources for connecting genomic and molecular features with drug response and identifying biomarkers. Therefore, large-scale cancer cell line resources have been growing, but this introduces challenges such as data standardization, consistent annotation, matching identifiers, cross-database integration, and a reproducible computational framework. CellMiner Cross Database (CellMinerCDB) integrates pharmacogenomic datasets from multiple resources and provides a standardized analysis of cell lines across datasets. This thesis examines cancer cell line cross-databases and their importance in pharmacogenomics, with a particular focus on CellMinerCDB. As part of this work, I developed an R package for the gCSI (Genentech Cell Line …

Tracking Toward Zero: Implementing A Picc Team Tracker To Prevent Clabsis, Christian Justin Carreon

Master's Projects and Capstones

Problem: Central line-associated bloodstream infections (CLABSIs) remain a significant and preventable patient safety concern in acute care settings, contributing to increased morbidity, mortality, prolonged hospitalization, and substantial healthcare costs.

Context: At Hospital A, a tertiary referral center in Northern California, six adult CLABSIs were identified between June and December 2025 following an eight-month CLABSI-free period. Four events occurred in adult medical surgical telemetry. All peripherally inserted central catheter (PICC) line CLABSIs were attributed to gaps in maintenance bundle adherence and the lack of a standardized, real-time tracking mechanism for the PICC Team.

Interventions: A PICC Team Tracker was implemented as …

Dynamics Of Swimming Microorganisms At Structured Liquid Crystal Interfaces, Vajra Sabhapathy Badha

Graduate Doctoral Dissertations

Active matter systems are self-driven units that consume energy to generate motion and mechanical stresses, producing non-equilibrium states of broad physical significance. Examples include synthetic microswimmers and migrating cells. Motile bacteria are a widely studied biological example because their self-propelled motion, hydrodynamic interactions, and collective organization are strongly coupled to local environmental conditions. Their swimming is sensitive to interfacial viscoelasticity, ordering, confinement, and hydrodynamic boundary effects, making them useful for investigating how interfaces regulate active biological motion. Because bacterial accumulation and attachment at interfaces are central to colonization and biofilm formation, these interactions are relevant to both active matter physics …

Socioeconomic Determinants Of Malaria Infection Among Pregnant Women In Cameroon, Sub-Saharan Africa, Arnold Akosah Muluh

Walden Dissertations and Doctoral Studies

Malaria during pregnancy is a significant public health issue in Cameroon, affecting maternal health and birth outcomes. Despite preventive measures, disparities exist among socioeconomic groups and between urban and rural areas. The study was guided by the social-ecological model and explored how socioeconomic factors and geographic location influence malaria infection in pregnant women. Specifically, the impact of wealth index, maternal education, and healthcare access on infection rates, considering maternal age, parity, and residence, was examined. Quantitative data from the Cameroon DHS Phase 8 were used (N=1204). The sample included pregnant women with valid malaria test results. Chi-Square tests and binary …

Staff Education To Strengthen Patient Counseling For Recurrent Uti Prevention In Middle-Aged And Older Women In A Low-Income Community Clinic, Linda Osamede Isidienu

Walden Dissertations and Doctoral Studies

This doctor of nursing practice (DNP) project was a practice-focused quality improvement (QI) staff education initiative designed to address recurrent urinary tract infections (UTIs) among middle-aged and older women receiving care in a low-income community clinic. Recurrent UTIs are associated with increased antibiotic use, antimicrobial resistance, and reduced quality of life. The purpose of this project was to evaluate whether a structured staff education program could improve provider knowledge related to patient counseling on UTI prevention. Twenty nurses and medical assistants participated in the intervention, which included education on evidence-based prevention strategies, counseling techniques for low health literacy populations, and …

The Underlying Connections Between Drug Abuse And Criminal Involvement, Jessica Sedor

Master of Arts in Human Services

In this composition, an analysis about the relationship between substance abuse and criminal engagement within specific types of crimes is explored. While examining this relationship, the importance of forensic rehabilitation within the criminal justice system is approached through advocacy of identifying risk factors and intergenerational patterns amongst the youth to reduce the abusive cycle of crime and addiction. This paper reflects the evident significance that it is imperative that human services professionals are aware of this relationship and how it can influence and impact one’s judgment, personality, decision making, and other criminogenic behaviors and attitudes. It is critical that the …

Staff Education To Improve Staff Knowledge Regarding Candida Auris, Nkechinyere Ejelonu

Walden Dissertations and Doctoral Studies

This Doctor of Nursing Practice project was a staff education project regarding Candida auris, a multidrug-resistant fungus recognized by the Centers for Disease Control and Prevention (CDC) as an urgent global health threat due to its high mortality, environmental persistence, and resistance to common disinfectants. Staff play a crucial role in infection prevention; however, limited awareness and inconsistent knowledge of Candida auris contribute to potential transmission in skilled nursing home settings. The project question was as follows: Among staff members in a skilled nursing facility, does an evidence-based educational intervention improve knowledge of Candida auris infection prevention as compared pre- …

Exploring Foundations Of Animal Host-Microbe Interactions In A Freshwater Sponge, Jacob S. Pawley

Electronic Theses and Dissertations

The most ancient eukaryotic immune defense mechanisms evolved in unicellular species. Multicellular eukaryotes, however, expanded these mechanisms to meet challenges unique to multicellular life, including barrier formation, long-distance cell signaling, and coordinated responses that eliminate microbial threats while minimizing damage to the host. As such, animal immune signaling pathways are exceptionally intricate and diverse. Though, most of what is understood about animal host–microbe interactions stems from a small handful of model systems. Here, I evaluate host–microbe interactions and innate immunity in sponges using the highly tractable freshwater sponge, Ephydatia muelleri. I report the discovery of an external host-derived matrix …

The Association Of Age, Race, And Gender And Novel Interventions In The Prevention Of Catheter-Associated Urinary Tract Infection, In Washington State, Lamin Darboe

Walden Dissertations and Doctoral Studies

Delayed removal of indwelling urinary catheters (IUCs) contributes to catheter-associated urinary tract infections, a leading healthcare-associated infection. A dot/smart-phrase communication tool, guided by the Health Belief Model construct of cues to action, to promote timely IUC removal interventions was evaluated in this quantitative, cross-sectional study. Secondary data from N = 372 adult patients with acute urinary retention in acute and critical care settings in Washington State were analyzed using SPSS Version 30. Binary logistic regression examined relationships among demographic variables, intervention-related factors (adherence within 48 hours, cosignature within 24 hours, and secure chat communication), and clinical outcomes (IUC removal and/or …

Identification And Characterization Of Novel Immune Modulating Genes In Parkinson's Disease, Kathleen Chaundy Paul Murphy

Dartmouth College Ph.D Dissertations

Parkinson’s disease (PD) is a progressive age-related neurodegenerative disorder characterized by both motor and non-motor symptoms. The poorly understood prodromal period, decades-long progression, and disease-phenotype heterogeneity continue to impede the development of preventive and curative therapies. A growing appreciation of immune system changes during the progression of PD suggests that evaluating peripheral immune cells may help identify signatures relevant to disease etiology. We aimed to expand our understanding of the peripheral immune compartment in PD via two lines of investigation: (1) by employing single-cell RNA sequencing to profile the transcriptomes of peripheral blood mononuclear cells (PBMCs) from a cohort of …

Post-Pandemic Telebehavioral Health: Sustaining And Regulating Remote Mental Health Care As A Core Modality, Weiqiao Dong

Dartmouth College Master’s Theses

The United States continues to face a persistent mental health crisis after the COVID-19 pandemic, raising a policy question about the long-term role and regulation of telebehavioral health as a core modality of care. This thesis examines that question through a case study of New York State, an early center of the pandemic and a leader in telehealth policy reform.

Guided by the Health Policy Triangle framework, this thesis integrates longitudinal data from all 62 New York counties for 2010-2025 with a 2025 cross-sectional dataset covering 61 counties. Seventeen standardized indicators are organized into four dimensions: geographic, economic, demographic, and …

Clinical Practice Guideline For Sepsis In Skilled Nursing Facility, Chinyere Okoroh

Walden Dissertations and Doctoral Studies

Sepsis is a life-threatening condition that can rapidly lead to organ dysfunction, septic shock, and death if not recognized and treated early. Older adults in skilled nursing facilities (SNFs) are especially vulnerable because of age-related physiological changes, chronic conditions, weakened immunity, and increased exposure to infections. Consequently, sepsis remains a major cause of hospital readmissions, mortality, and healthcare utilization among SNF residents. The SNF serving as the site for this Doctor of Nursing Practice (DNP) project experienced increased hospital readmissions associated with recurrent sepsis, highlighting the need for a standardized, evidence-based approach to sepsis recognition and management. The practice-focused question …

Understanding Relapse And The Correlation With Group Counseling Accountability, Attendance, And Attitudes, Willie Sanders

Walden Dissertations and Doctoral Studies

Substance abuse continues to create significant personal, family, and legal challenges, yet limited research exists on mandated clients receiving counseling within rural municipal court systems. Studying factors associated with relapse allows counselors and counselor educators to develop interventions to prevent relapse and improve treatment outcomes. The purpose of this quantitative study was to investigate the relationship between group counseling attributes of attendance, accountability, attitudes and the level of relapse rates among rural municipal court clients in Columbus, Mississippi, as measured by the DEF, Subtle, Face Valid Alcohol, Face Valid Other Drugs, and the OAT Scales of the SASSI-4 Assessment. Theoretical …

Social Workers’ Perceptions Of Pediatric Hiv Disclosure Process, Colleen Myrie

Walden Dissertations and Doctoral Studies

Although the social problem of pediatric HIV disclosure has been studied by researchers internationally, there remains a gap in the experiences of social workers in facilitating this process. The purpose of this generic qualitative study was to explore the experiences and perceptions of social workers in the United States regarding the disclosure process for HIV positive children. This study was grounded in Rosenstock’s health belief model, which posits that an individual will take necessary action to prevent or manage a disease based on their perceptions of health. This model was effective in helping to identify what social workers think about …

The Cul-De-Sac Paradox: The Relationship Between Walkability, Playability, And Children’S Physical Activity, Lydia Reader

McKelvey School of Engineering Graduate Student Theses & Dissertations

Walkability and playability are two constructs on how the built environment can support physical activity, the former most relevant to adults and the latter designed with children in mind. There are concerns that walkability and playability are intrinsically in competition with one another, with urban forms supportive of physical activity for adults detrimental toward the physical activity of children and vice versa. This thesis explores this conflict using agent-based modeling as a tool for refining the theoretical constructs behind playability and children’s physical activity. We examine the state of the current evidence for the relationship between walkability and children’s physical …

Staff Education To Improve Hand Hygiene And Personal Protective Equipment Compliance, Suliat Oluwa

Walden Dissertations and Doctoral Studies

This doctoral project is a staff education initiative designed to strengthen hand hygiene and personal protective equipment (PPE) practices among interdisciplinary staff in a long-term care (LTC) facility. The practice problem addressed inconsistent hand hygiene and PPE use across shifts and departments, contributing to healthcare-associated infections (HAIs). Because LTC residents are highly vulnerable due to advanced age, multiple comorbidities, and shared living environments, improving adherence to infection prevention practices is essential for enhancing resident safety, reducing preventable infections, and supporting compliance with Centers for Disease Control and Prevention (CDC) and Centers for Medicare & Medicaid Services (CMS) infection prevention standards. …