Digital Commons Network^™

Resiliency And Positive Childhood Experiences: Implications For Black Youths' Mental And Behavioral Health And School Engagement, Sharnequa Nashay Hunter

Dissertations

Two independent studies were conducted to examine the buffering impact of positive childhood experiences on Black youths’ mental and behavioral health and school engagement outcomes. The purpose of Study 1 was to investigate the potential moderating effects of positive childhood experiences on the relationship between adverse childhood experiences and the occurrence of mental or behavioral health conditions (anxiety, depression, ADHD/ADD, and/or a behavioral/conduct problem) and school engagement, using secondary data from the 2020 National Survey of Children’s Health, a survey completed by primary caregivers. The study sample included 2,201 Black youth ages 6-17 across the United States. Logistic regression and …

Understanding Stress, Strengths, And Strategies To Support Immigrant Youth: A Bundled Dissertation, Sarah Jolie

Dissertations

In the study of child development and mental health of Latine and immigrant and refugee youth, it is necessary to understand their cultural experiences and stress experiences in the U.S. The present project aims to address culture, stress, and the development of internalizing outcomes among Latine, immigrant, and refugee youth across two important stages of development: middle childhood and adolescence. The first study provides a comprehensive review of Latine children’s immigration experiences, the effects of exposure to multiple stressors, cultural factors, and intervention implications. The second study provides a focused examination of the impact of two culturally relevant stressors among …

“I Really Like The Idea Of Being The Source Of Change”: The Perspectives Of Black And Latine Youth Experiencing Low Income About How Personal Change Occurs In Out-Of-School Group Programs, Kevin Miller

Dissertations

Structured out-of-school programs (OSPs) can be contexts in which youth can be producers of their own positive change (Eccles & Gootman, 2002). However, despite a considerable body of research documenting the benefits of participating in OSPs, there is a lack of knowledge about how youth of color in low-income communities define positive personal change in OSP settings. As a result, many OSPs and interventions designed for youth of color rely on adult practitioners’ or researchers’ perspectives of the change process, which may weaken program impact and fail to holistically meet youths’ developmental needs. This study uses a critical realist scientific …

Asian Americans’ Experiences Of Covid-Related Discrimination: Collective Identity, Critical Consciousness, And Intergroup Solidarity, Han Na Lee

Dissertations

The outbreak of the coronavirus disease (COVID-19) has stirred fear and panic with a surge of anti-Asian hate in the United States. Racial discrimination was exacerbated by labeling COVID19 as “the Chinese virus” and blaming Asians and Asian Americans as the source of the virus. Within the exacerbated xenophobic and racist rhetoric since the COVID outbreak in 2019, racial discrimination was amplified towards anyone who phenotypically presented as “Asian.” It is unclear how various Asian ethnic individuals identify with their Asian American identity while experiencing the intensified discrimination. Specifically, experiencing COVID-related racism and group-based rejection may increase or decrease Asian …

Can One-Party Dominant States Be Democratic? A Meso-Level Classification Of The Playing Field Of Hegemonic Party States., Adam Hii

Dissertations

This project seeks to fill a gap in the regime classification literature on how to approach one-party dominant states. Historically, these states have been difficult to classify with numerous scholars expressing struggles in approaching these cases. Using the level electoral playing field, this study proposes a new meso-level classification scheme to create clearer regime classification for one-party dominant states. It uses three cases studies of current one-party dominant states to see if any of these regimes can realistically be considered democratic. The case study of Botswana in comparison to the other two one-party dominant states (Tanzania and Azerbaijan) as well …

Child-Parent Psychotherapy In Child Welfare, Michelle Saulnier

Dissertations

Objective: Child-Parent Psychotherapy (CPP) is a therapeutic model that works within the caregiver relationship with children 0 – 6 years old who have experienced trauma or maltreatment. This study utilized a mixed methods design to evaluate how CPP was implemented within a child welfare waiver project in one Midwestern city. This study also looks at various factors impacts on CPP service delivery outcomes and examines how CPP impacts child welfare outcomes within the context of a larger evaluation. Methods: A sequential mixed methods design was completed with descriptive, and correlation statistical analysis completed. In addition, person-time fixed level analysis was …

Comparing Caregiver-Teacher-Adolescent Mental Health Reporting: Examining Changes Over Time And Related Outcomes Among Youth Involved In The Child Welfare System, Jennifer Osborne

Dissertations

The benefits of psychological assessment are particularly salient for children and youth in the child welfare system, as youth in contact with the system are more likely to experience mental health symptoms, disorders, and comorbidities as compared to youth in the general population. These assessments often utilize multiple reporters, as emerging evidence indicates that utilizing multiple more effectively captures the mental health experiences of children and youth. However, the extant literature has consistently observed only low-to-moderate (i.e., .2-to-.3) agreement across informants, including among dyads in contact with the child welfare system. Several factors are associated with level of agreement across …

Racializing Digital Campus Spaces: A Critical Phenomenological Approach To Understanding (Re)Production Of Whiteness In Digital Campus Ecology, Victoria Elizabeth Callais

Dissertations

The landscape of higher education campus environments continues to change as student populations diversify (Parsons, 2023; Renn & Reason, 2013) and campus spaces extend into the digital realm. This critical phenomenological study examined organizational features that racialize digital campus ecology by examining the phenomena of interest, racialized digital campus spaces (RDCS). Through semi-structured interviews and focus groups with undergraduate students that focused on their experiences with RDCS and semi-structured interviews with administrators that focused on the organizational infrastructure and campus digital culture, findings revealed a complex understanding of campus ecology when reflecting on issues around race. I introduce Augmented Reality …

The Experience Of Pregnant Adolescents Living In A Group Home, Mary Ellen Lasala

Dissertations

Adolescent pregnancy and parenthood have been identified as national public health problems and are topics of intense debate in the United States because of their impact on maternal and child health and on the social and economic well-being of the nation. While many types of parenting programs are available to the adolescent mother, not one approach has emerged as the most effective to decrease subsequent pregnancies and to improve mother and child health. Using Husserl's Phenomenology as a philosophical underpinning, what it means to be a pregnant adolescent living in a group home was explored.

Racialization’S Influence On African American Male University Attrition: Is It Culture Shock Or Is There More To The Story, Joseph M. Butler

Dissertations

This dissertation investigates the influence of racialization on the attrition rates of African American male students in predominantly white institutions (PWIs). The study examines whether these students experience cultural shock or face more profound systemic challenges. The research explores how African American men navigate and perceive their college environments by employing Critical Race Theory and DuBois' double consciousness. The research utilizes a mixed-methods approach, combining qualitative interviews, demographic surveys, and document analysis to view these students' experiences comprehensively. The study focuses on four religiously affiliated universities, highlighting the intersection of race, identity, and institutional culture and revealing patterns of isolation, …

Navigating Culture And Family In Post-Secondary Education As Nigerian American College Students, Funmilayo Ojikutu

Dissertations

The purpose of this dissertation is to examine how Nigerian Americans and their families understand academic success, identity, and family influence. This research study aims to understand these three areas by examining the experiences of five Nigerian American undergraduate students and their respective families. The data for this study was collected through individual interviews, focus groups, and an artifact analysis. Through using the Multidimensional Model of Racial Identity framework, findings demonstrated the importance of balancing identities, community, legacy, and shifts in generational mindsets. The findings in this dissertation offer larger discussions related to differences within the Nigerian community, the impact …

Assessing The Role Of Psychological Self-Sufficiency And Organizational Factors In Achieving Economic Self-Sufficiency Among Low-Income Populations, Alanna Jeeyoung Shin

Dissertations

Low-income populations in the United States face complex challenges amid persistent high levels of poverty, income inequality, and child poverty (OECD, 2023; OECD, 2024; Smeeding & Thévenot, 2016; U.S. Bureau of Labor Statistics, 2023b). Influenced by neoclassical economic theory and human capital theory, work-first initiatives like Temporary Assistance for Needy Families (TANF) focus on fostering individual change by enhancing employable skills (Kim, 2010). These programs predominantly emphasize personal responsibility as a strategy for reducing poverty. However, multilayered barriers remain that hinder the achievement of economic self-sufficiency (Hong et al., 2014). To challenge the prevailing approach focusing on the individual level, …

Clinical Social Workers, Telemental Health And The Covid-19 Pandemic, Juli Chaffee

Dissertations

As a result of the COVID-19 Pandemic, and due to the shelter in place order that most states required, licensed clinical social workers (CSW’s) were forced to switch from in person services to telemental health services almost overnight. Many did so without previous training, adequate technology, a confidential office, or professional support. While there is a growing body of research regarding the increased use of telemental health in the mental health field during COVID-19, there is minimal research which narrows in what it was like for the CSW’s who made this transition. The purpose of this study was to better …

Middle Class African Americans Diagnosed With Type 2 Diabetes Mellitus Self-Care Practices Related To Their Spirituality, Self-Efficacy, And Health Literacy, Jacqueline G. Moody

Dissertations

Diabetes mellitus continues to be one of the most commonly diagnosed medical conditions in the United States. More than 25 million children and adults are living with type 1 or type 2 DM (ADA, 2012). Even though 18 million patients have been diagnosed with diabetes, an additional 7 million are unaware they have the disease. An important factor in health outcomes for diabetes is self-care that includes proper glucose levels control. Self-care for diabetes mellitus is important to decrease an individual's risk factors. Self-care consists of the practice of activities that maturing and mature persons initiate and perform, within time …

Hospital-Associated Functional Status Decline In Pulmonary Patients, Amy C. Shay

Dissertations

Chronic obstructive pulmonary disease (COPD) is a significant worldwide cause of chronic illness and mortality and one of the most common admitting diagnoses in the United States. Persons with COPD are at increased risk for deconditioning during hospitalization, which can lead to decreased functional status at discharge. Disease-related factors and elements of the hospital environment make older adults with COPD vulnerable to hospital-associated functional status decline. The purpose of this dissertation was to identify activity factors that contribute to hospital-associated functional status decline in older adults with COPD by promoting functioning during hospitalization. This predictive correlational study is a secondary …

Addressing Gatekeeping Challenges In Counselor Education: A Grounded Theory, Vanessa Pauline Gill

Dissertations

This constructivist grounded theory study explored how counselor educators navigate remediation and gatekeeping challenges in CACREP-accredited programs. Fifteen counselor educators with at least one challenging gatekeeping experience participated in semi-structured interviews conducted via Zoom. All interviews were recorded and transcripts were completed. Data was analyzed using grounded theory methodology and analysis efforts were organized using the MAXQDA 2024 software. Data analysis involving constant comparison methods and memo-writing generated an emerging theory describing counselor educators’ journey from uncertainty to increased confidence in addressing remediation issues. The theory illuminates how experiential learning, reflective practice, and supportive professional relationships inform this developmental process. …

Infertility’S Impact On Couples’ Functioning, Elizabeth Sanders

Dissertations

Historically, infertility has been a taboo topic of discussion and is often avoided in conversation because of the stigmatization of the diagnosis. According to the World Health Organization (2022), infertility affects 186 million individuals globally. However, there seems to be a gap in the research as it pertains to the psychological well-being and treatment of men and women diagnosed with this condition. While it has become less of a feared topic, it still is not discussed or researched enough, thus further exacerbating the gap in research on mental health and treatment options. The following dissertation completed a critical review of …

Transformational Leadership Teams And Implementing Multi-Tiered Systems Of Support [Mtss] In The Context Of An Urban All-Male Catholic High School: Bridging The Gap To Academic Identity And Student Efficacy, Markeise R. Russell

Dissertations

This study explored the implementation of Multi-Tiered Systems of Support (MTSS) at Garfield High School, an urban all-male Catholic high school in Chicago. The study aimed to understand the perceptions and experiences of school leaders and stakeholders in facilitating MTSS implementation. Using Tony Wagner's 4C Framework of Context, Culture, Conditions, and Competencies, the researcher assessed the current state ("As-Is") of the MTSS and envisioned the desired future state ("To-Be"). A qualitative research design was employed, involving interviews, focus groups, and document analysis to gather in-depth insights from administrators, teachers, and support staff. The purpose of the study was to identify …

Reclaiming Healing Spaces: A Phenomenological Study On The Transformative Power Of Outdoor Therapy From The Lived Experiences Of Black Clinicians Working With Black Clients, Lynn Murphy

Dissertations

This phenomenological study involved assessing the experiences of Black therapists who engaged Black clients in outdoor therapeutic contexts. The study was founded on the existing literature that shows the quality of the therapeutic relationship is pivotal for client retention and the Western standards that have historically favored treatment within indoor environments. To contextualize this research, a comprehensive literature review was commenced, covering topics such as the decolonization of therapy, the historical and present-day relationship between Blacks and the outdoors in the United States, sedentary lifestyles, the psychological benefits of time spent in nature, various types of outdoor therapy, and the …

A Multifactorial Study Of Factors Influencing Self-Health Behaviors In Dementia, Elizabeth Malkin

Dissertations

The global increase in dementia cases presents a significant public health challenge, particularly given the absence of a cure and the rising healthcare burden on individuals and society. This study aims to examine the influence of knowledge, beliefs, and motivation on self-health behaviors to mitigate the risk of dementia among individuals residing in the United States. With the use of an online survey, the study utilized the U.S. normed MCLHB-DRR scale and supplemental questions about knowledge of risk factors and degree of closeness to family members with dementia to determine whether (1) more closely related relatives (first-degree relatives) and those …

Differences Are Not Deficits: Women Introverting While Black Through The Ascent To Executive Leadership In Higher Education, Jeri A. Bingham

Dissertations

Diversity of personality type in the workplace can lead to improved morale and productivity when organizations acknowledge and support the attributes and differences of employee behaviors and characteristics. Black women executives identifying as introverted who lead with their authentic personas and intersected marginalized identities, benefit employers, employees, students, and the institution’s brand and bottom line. Introversion and extroversion, ways to describe diversity of personality type, and each having different connotations in office culture, are relevant to this exploration as literature suggests that the population of both personality types is almost evenly distributed. The implications of judgement and the association to …

Investigating The Neurovascular Correlates Of Cognitive Function In Individuals With Spinal Cord Injury Using Functional Near-Infrared Spectroscopy, Donna Yali Chen

Dissertations

Individuals with spinal cord injury (SCI) have a 13 times greater risk of cognitive impairment than able-bodied individuals and commonly report symptoms of depression and anxiety. The reports of cognitive impairment in individuals with SCI are independent of concomitant brain injury. Although the direct cause of cognitive impairment in individuals with SCI is unknown, key contributors may include comorbid depression, chronic pain, anxiety, fatigue, brain injury, or cardiovascular dysfunction. Previous studies have focused on SCI at the level of the spinal cord but have under-investigated the supraspinal levels. Due to the lack of neuroimaging studies on SCI rehabilitation, it is …

Enhancing Community Flood Resilience By Incorporating Landscape Hydrological Sensitivity And Connectivity, Wenlong Feng

Dissertations

Rapid urban expansion and dramatic climate change have significantly increased the intensity and frequency of floods worldwide. With rising flood risks, conventional flood defense strategies that rely on structural measures become ineffective. The present designations for flood-prone areas, such as FEMA's flood maps, are becoming unreliable. Flood risk management is shifting toward enhancing community flood resilience, highlighting the importance of non-structural approaches. Landscape resilience has become a foundation of community flood resilience. However, past urban development typically undermined natural hydro-ecological functions and landscape resilience because of poor recognition of landscapes' ecological role, hydrological sensitivity, and hydrological connections. This study aims …

Federated Learning Systems For Mobile Sensing Data, Xiaopeng Jiang

Dissertations

Federated Learning (FL) has emerged as a new distributed Deep Learning (DL) paradigm that enables privacy-aware training and inference on mobile devices with help from the cloud. This dissertation presents a comprehensive exploration of FL with mobile sensing data, covering systems, applications, and optimizations.

First, a mobile-cloud FL system, FLSys, is designed to balance model performance with resource consumption, tolerate communication failures, and achieve scalability. In FLSys, different DL models with different FL aggregation methods can be trained and accessed concurrently by different apps. In addition, FLSys provides advanced privacy-preserving mechanisms and a common API for third-party app developers to …

Data Driven Decision Making For Sustainable Planning And Operations Of Large Scale Networks, Bahareh Kargar

Dissertations

This dissertation explores data-driven decision-making networks, focusing on sustainable planning and operations for large-scale systems such as healthcare supply chains and power systems. One significant application in healthcare is the optimization of vaccine supply chains. An agent-based simulation-optimization modeling framework is developed to enhance the efficiency and sustainability of vaccine distribution. First, an agent-based epidemiological model of COVID-19 is extended to capture disease transmission dynamics and forecast the number of susceptible individuals and infections. Then, a sustainable vaccine supply chain considering the impacts of greenhouse gases is developed and integrated with the simulation model to minimize total costs and environmental …

Electrified Membrane For Water Treatment And Resource Recovery: Advancing Multiscale Strategies In Gas-Involving Reactions, Jianan Gao

Dissertations

Multifunctional, modular, and scalable water treatment technologies that operate without chemical additives are crucial for addressing global water pollution challenges. While traditional membrane-based separation processes are crucial for ensuring clean water supplies, they primarily focus on pollutant removal rather than on the upcycling of pollutants into valuable resources. Electrified membrane filtration presents a robust alternative, utilizing minimal or no chemical additives and harnessing electrical power to directly reduce contaminants or produce reactive oxidants or reductants on-site.

This dissertation is dedicated to the development of innovative electrochemically reactive membranes designed to address three major challenges: (1) the engineering of electrocatalysts with …

A Methodological Framework For Ontology Development, Enrichment, And Application In Natural Language Processing Tasks, Navya Martin Kollapally

Dissertations

Electronic Health Records (EHRs) have been widely used in healthcare to record demographics, vital signs, test results, immunizations, medical imaging reports, differential diagnoses, etc. It is now accepted that non-clinical (e.g., social) factors have a substantial influence on health outcomes. Hence, it is desirable to record these Social and Commercial Determinants of Health (SDoH & CDoH) in an EHR. The "non-text parts" of EHR notes (e.g., data tables) rely on coded terms from underlying ontologies or terminologies to facilitate semantic interoperability. Ontologies help define concepts, the relationships between them, and instances that can be utilized in research.

The first accomplishment …

Microwave Catalysis-Enabled Membrane Processes For Microbial Inactivation, Fangzhou Liu

Dissertations

The COVID-19 pandemic has highlighted the urgent need for advanced technologies to combat virus transmission. Traditional membrane filtration technologies primarily serve as physical barriers, capturing pollutants but failing to inactivate microbial agents such as bacteria and viruses. These membranes typically target larger particles but are ineffective against sub-micrometer viral particles. Thus, there's a critical demand for membrane filtration processes that combine robust filtration with antifouling and reaction -enabled functions for efficient pathogen disinfection. This research explores a novel microwave-assisted membrane filtration process incorporating catalytic reactions to enhance microbial disinfection and prevent membrane fouling, offering a groundbreaking solution to global challenges …

Estimation Of Spo2 Levels And Heart Rate From Ppg Signals In The Presence Of Motion Artifacts, Chizhong Wang

Dissertations

In the rapidly advancing world of health technology, wearable devices are at the forefront, fundamentally changing how individuals monitor their health. The key to this transformation is photoplethysmography (PPG), a non-invasive optical method that measures blood flow variations through the skin by detecting changes in light absorption with each heartbeat. This capability makes PPG essential for monitoring vital signs such as heart rate and blood oxygen saturation(SpO₂). Furthermore, the utility of PPG signals has been extended beyond traditional health metrics to include human activity classification, offering a holistic perspective on an individual's physical health and activity levels, in …

Large Deviation Theory In Stochastic Processes: Applications To Biological Modeling, Moshe C. Silverstein

Dissertations

This dissertation delves into developing and applying stochastic models to analyze complex biological systems. It leverages Large Deviation Theory (LDT) to gain insights into these systems, focusing on two key examples: neural networks and calcium signaling dynamics. Traditional deterministic methods frequently fail to capture biological processes' randomness and inherent variability. Meanwhile, many stochastic approaches struggle to be mathematically tractable or provide accessible insights. The approach introduced in this study provides rigorous mathematical frameworks to enhance understanding of these stochastic behaviors while remaining tractable and insightful.

A stochastic model for a random biological neural network is constructed that addresses the dependencies …