Digital Commons Network^™

Regulatory, Structural And Functional Studies Of The Adp-Glucose Pyrophosphorylase From Photosynthetic And Heterotrophic Organisms, Gabriela Martinez-Ramirez

Dissertations

The production of biofuels like ethanol has increased with the transition to renewable energy. Starch can be converted into ethanol through chemical modification. Increasing the availability of starch is crucial to fight back climate change thus, researchers have focused on the biotechnological modification of plants. This modification is known as transgenics, where a plant is modified by the insertion of genes, to make it as productive as possible. The genes inserted code for enzymes that control pathways responsible for the synthesis of certain biomolecules, in this case starch. The synthesis of starch in plants (as glycogen in both photosynthetic and …

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 …

Warm Bodies, Strong Attachments, And The Search For Better Bonds: The Politics Of Human-Animal Entanglements In U.S. Fiction And Media, John Charles Hawkins

Dissertations

This dissertation describes human-animal relationships as sites of political longing and meaningful failure in the context of twentieth and twenty-first U.S. fiction and media. I locate three tendencies of imagination prevalent in writing about bonds between humans and other animals: collaboration in regional modernity, refamiliarization in consumer capitalism, and transformation in rationalist patriarchy. These expressions of desire for a different way of relating, I argue, open important windows into the places where current power structures generate suffering and distress. I also emphasize the compelling but imperfect nature of these expressions. The texts and images in this dissertation offer attempts to …

“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 …

A Womanist Narrative Ethics Of Survival: An Exploration In African American Meaning Making, Lashaunda Janeice Reese

Dissertations

This project creates a womanist narrative ethics of survival framework using literary analysis, sociological and theological comparisons, and reflections on moral dilemmas in fiction and history. Steeped in the African American woman’s experiential perspective, this framework provides an alternative viewpoint through which to examine and analyze ethical issues arising in the context of marginalized bodies. Integrating the Christian faith, the history of chattel slavery in the United States, and the expanding field of African American literature and literary theory, this work posits that fiction provides a rich platform to work through thick moral dilemmas, affording a concrete ethical framework to …

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 …

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 …

Exploring The Incumbent Early Childhood Workforce As Teachers Who Student And Students Who Teach: A Phenomenological Study, Kate Maxine Connor

Dissertations

The professionalization efforts within the early childhood workforce continue to push for current workforce members to return to college to earn associate or baccalaureate degrees. Leaders of these efforts have called for higher education institutions to be flexible and supportive. At the same time, there is little research on the experiences of teachers returning to college, particularly those attending community colleges where most early childhood higher education programs exist. This hermeneutic phenomenological study explored the lived experiences of early childhood teachers returning to school to earn their Associate of Applied Science degree in Early Childhood while working in classroom settings. …

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 …

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 …

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. …

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 …

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 …

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 …

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 …

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 …

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 …

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 …

Numerical Techniques For Improving Simulations Of Tropical Cyclones, Yassine Tissaoui

Dissertations

The increasing frequency and intensity of tropical cyclones (TCs) due to climate change pose significant challenges for forecasting and mitigating their impacts. Despite advancements, accurately predicting TC rapid intensification (RI) remains a challenge. Large eddy simulation (LES) allows for explicitly resolving the large eddies involved in TC turbulence, thus providing an avenue for studying the mechanisms behind their intensification and RI. LES of a full tropical cyclone is very computationally expensive and its accuracy will depend on both explicit and implicit dissipation within an atmospheric model. This dissertation presents two novel numerical methodologies with the potential to improve the efficiency …

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 …

An Autoethnography Of A Social Justice-Minded Teacher In Corrections, Graciela Rubalcaba-Munoz

Dissertations

ABSTRACT The incarceration of women has increased 93% in the last fifty years. This impacts marginalized communities at disproportionate rates. Although the provision of education in corrections became federal law in 1952 as a means to rehabilitate inmates, women’s facilities currently do not receive equitable resources to support education, which puts additional pressure on the educational staff. The legal requirement for education includes county jails, the transitory facilities that house inmates while they await court or transfer to prison. The jail educational system is volatile, making it difficult to engage students when there are constant interruptions, unexpected incidents, lockdowns, and …

Caregiver Support For Patients Diagnosed With Dementia, Michelle N. Kabakibi

Dissertations

Background: Current research indicates that caregivers of dementia patients often experience a great deal of stress related to caregiving. Most of these caregivers are informal caregivers without prior knowledge or training in dementia care. Previous studies indicate that informal caregivers often experience stress during this postdiagnosis period due to a lack of high-quality and available information, education, and support services tailored to meet the unique needs of families caring for a dementia patient. Currently published approaches to providing caregivers with information are largely centered on a one-size-fits-all approach.

Purpose: This descriptive qualitative study was conducted to examine the lived experience …

Using The Home Health Oasis To Promote Advance Care Planning Among Community-Dwelling, Frail Older Adults, Suzanne S. Sullivan

Dissertations

Despite an aging population with increasing proportions of frailty and decline, the rates of documented Advance care plans (ACP), meant to align goals for care with the level of treatment at end-of-life (EOL), are low (~30-40%). Patients expect clinicians to raise the question about serious illness goals for care when the time is right, however, there are a number of barriers to the initiation of these difficult conversations including provider bias and uncertainty. A review of the literature indicates that there are few prognostic indices available for use to identify the right time to initiate EOL conversations based on risk …

Impact Of An Open Access Appointment Scheduling System On No-Show Rates In An Urban Federally Qualified Health Center, Rosemary Ward

Dissertations

No-show medical appointments lead to health disparities and threaten the financial survival of Federally Qualified Health Centers (FQHCs). Open access scheduling eliminates long lead times, a common reason for no-show visits. Preventive health screenings and chronic disease management were drastically reduced during the COVID-19 pandemic, requiring innovative methods to increase access to care. The purpose of this quality improvement (QI) project was to measure the impact of an open access scheduling system on no-show rates in an urban FQHC. A pre-post observational design compared two days per week of no-show data for a span of 10 weeks between two family …

A Secondary Analysis To Inform A Clinical Decision Rule For Predicting Skull Fracture And Intracranial Injury In Children Under Age Two, Elizabeth L. Stone

Dissertations

The purpose of the current study was to identify the variables associated with the risk of closed head injury (CHI) in children under age two with suspected minor head injuries based on age-appropriate, or near age-appropriate, mental status on exam, as defined by a Glascow Coma Score (GCS) of 15 or 14, respectively. The goal was to propose a set of variables that, when considered together, have a high degree of predictive accuracy in identifying CHI in this population. This set of variables could eventually be used to inform a clinical decision rule which may help triage nurses make acuity …

Reading The Prologue Of John's Gospel As Midrash With A View To Examinging A Local Parting Of The Ways, Joseph Mukuna

Dissertations

This dissertation attempts to read the Prologue to John’s Gospel as midrash with the view to examining a local parting of the ways. It is argued that the midrash technique in the Prologue serves to persuade the audience to perceive itself as a religious other. Through John’s use of the midrash technique in the Prologue, there is an engaged effort to create boundaries and construct a new identity for his community. The choice of vocabulary and theological claims are essential markers of how the author intends to construct a new identity. Using rhetorical analysis, the dissertation claims that the Prologue …