Digital Commons Network^™

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 …

Order-Picking Strategies And Efficiency Models For The Fulfillment Of Multi-Line E-Commerce Grocery Orders, Zijia Wang

Dissertations

The fulfillment process for Buy Online Pickup from Store grocery orders (BOPS-Grocery) is particularly challenging, given the large item count per order and the low-profit margins. This research investigates the BOPS-Grocery model and pursues the following objectives: (i) Defining and specifying the BOPS-Grocery fulfillment process. Differentiating the process from classical warehouse order picking., identifying performance objectives, and characterizing design options and facility layout. (ii) Modelling and developing order picking algorithms specific to the straight aisle section. Formulated as an order hatching problem with picker movement minimization. No order splitting, and (iii) modeling and developing order picking algorithms specific to the …

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 …

Collision Dynamics Of Compound Droplets In Microchannels: A Combined Numerical And Data-Driven Study, S M Abdullah Al Mamun

Dissertations

Understanding and predicting the hydrodynamic interactions of micron-scale droplets is crucial in a wide range of industrial and real-life applications, including microfluidics, pharmaceutics, drug delivery, food science, and enhanced oil recovery. These multi-phase and multi-scale phenomena are further complicated by the presence of core droplets of an immiscible fluid within shell droplets, known as compound droplets. The collisions and interactions of droplets in emulsions are influenced by various physical and geometric parameters, leading to distinct rheological and dynamic responses. This research employs numerical methods for a systematic parametric study of both simple and compound droplet pair collisions under confined shear …

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 …

Efficient Numerical Methods For Monge-Ampere Type Equations, Jake S. Brusca

Dissertations

Current numerical methods for Monge-Ampere-type equations and Optimal Transport problems face challenges when handling higher dimensions and large-scale data. This dissertation aims to develop and analyze efficient, highly parallelizable numerical algorithms for solving the Monge-Ampere equation to address these issues. Two approaches are employed:

(1) The discretization method is enhanced by introducing an integral repre-sentation of the Monge-Ampere operator. This integral can be discretized using higher-order quadrature, yielding a more efficient, higher-order monotone scheme that allows for narrower stencils. An additional advantage of this discretization is its natural extension to arbitrary dimensions.

(2) The nonlinear solvers for this scheme are …

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 …

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 …

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 …

A Fundamental Cause Approach To Intimate Partner Violence In Marginalized Populations, Nicholas S. Metheny

Dissertations

Intimate Partner Violence (IPV) is a serious public health concern that transcends partnership types and societies, affecting approximately one-third of women worldwide. Men in same-sex relationships likely experience violence at similar rates. This dissertation takes a fundamental cause approach to social-ecological and minority stress theories, arguing that structural forces are the root causes of violence in two target populations: women residing in low- and middle-income countries (LMIC) and Indigenous men who have sex with men (MSM) in the United States. Consisting of eight chapters, four of which are empirical studies, this body of work creates new knowledge surrounding how social …

Exploratory Study Of Graduate Nursing Student Grit And Strategies Used By Their Faculty: A Mixed Methods Approach, Leanne T. Burke

Dissertations

Registered Nurse (RN) workforce projections continue to show a shortage of RNs, which will intensify as Baby Boomers age and large numbers of nurses reach retirement (AACN, 2017a). To meet workforce demands, increasing numbers of nurses prepared at the graduate level for advanced roles like nursing faculty, nurse researchers, and primary care providers are critical. With variable attrition rates in master's and doctoral programs, there is a need for research into the uniqueness of these populations. In particular, noncognitive predictors of success, such as grit, may be important. This explanatory sequential mixed methods study assessed grit levels (measured by Grit-S) …

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 …

A Daca Initiative: Transformative Organizational Change At The School Of Medicine, Cynthia Chaidez

Dissertations

The purpose of this revelatory case study is to explore how the DACA Initiative (DI) transformed the School of Medicine (SOM) beyond just changing student demographics. In this research, I specifically explored if, through the DI, SOM organizationally changed enough to be considered transformative change in its efforts to enhance the acceptance and support of DACA medical students. In addition, I looked at the evolution of the financial operations at SOM to support DACA medical students. The research questions that guided this study were: As a result of the DI, did the organizational changes implemented by SOM to accept and …

Resilience And Associated Factors In Pediatric Nurses, Benjamin M. White

Dissertations

The purpose of this dissertation was to explore pediatric nurse resilience and the contextual factors surrounding it, and propose a heuristic framework of pediatric nurse resilience. A convergent mixed-methods approach to secondary analysis was utilized and the resulting findings informed the heuristic framework.

A Comparison Between Unit-Based Education And Centralized Education Among Staff Nurses, Marilyn J. Campbell

Dissertations

Educating staff nurses is pivotal in the evolving healthcare environment. Two staff development models used in the healthcare setting are unit-based and centralized. Unit-based education is a staff development model that places educators on individual units. These educators direct the educational development of staff nurses on their assigned units. Centralized education meets generalized learning needs and provides nursing departments with scheduled education sessions or impromptu meetings regarding changes to policies and procedures. In addition, centralized educators are assigned to address the learning needs of the nurses on several units with universal orientation (Cummings & McCaskey, 1992), coordinate and implement intravenous …

Perceived Factors Impacting Teachers’ Pedagogical Decision-Making Pertaining To The Use Of Pbl In The Classroom: A Dissertation, Amanda Slaughter

Dissertations

There is a consistent body of research evidence citing the potential of Problem-Based Learning (PBL) as a viable instructional tool to raise student engagement with challenging content (Saye & Brush, 2017; Strutchens and Martin, 2017; Wynn, 2015). According to the National Council for the Social Studies, “The primary purpose of social studies is to help young people develop the ability to make informed and reasoned decisions for the public good as citizens of a culturally diverse, democratic society in an interdependent world” (NCSS, accessed 2023, March 1, para. 2). Scholars like Engle (1960) called for instructional strategies that raised the …

Elucidating Enterococcal Mechanisms Underlying Recurrent Urinary Tract Infections, Baylie Hochstedler-Kramer

Dissertations

Urinary tract infection (UTI) is one of the most common bacterial infections globally and can lead to life-threatening complications. UTI disproportionately affects females, with the majority of females being treated for at least one UTI in their lifetime. Of the females who develop UTI in their lifetime, almost one third will develop recurrence within six months after initial treatment and many will struggle with UTI recurrence for long spans of their lives. Although recurrent UTI has previously been attributed to persistence of Escherichia coli, recent studies utilizing more sensitive detection methods have shown Enterococcus faecalis is strongly associated with recurrent …

An Interpreted Journey Of Professional Growth Among Female Baccalaureate Nursing Students: A Hermeneutic Study Of Mindfulness Practices, Lorraine Santangelo

Dissertations

Nursing literature reveals that stress is a leading factor contributing to nursing student attrition, new nurses leaving the profession, and the reduction of positive formation of professional identity during prelicensure education and transition into professional practice, which jeopardizes the growth and replacement needs of the future nursing workforce. Despite extensive quantitative research suggesting mindfulness practices decreases stress and anxiety among college students, nursing students, and nurses, a paucity of qualitative studies exist to inform on the meaning of this experience from the nursing student perspective. Nursing literature also suggests that stress management techniques, cultivating awareness of personal values, and a …

Exploring Multilevel Factors Associated With Dual-Method Contraceptive Use Among Adolescent And Young Adult Women, Lauren Holt

Dissertations

Sexually transmitted infections (STIs) continue to rise in the US, and adolescent and young adult women (AYAW) between ages 18 and 24 have some of the highest STI rates in the country. Further, AYAW who use prescribed contraceptives (commonly referred to as birth control) are less likely to use condoms and more likely to be diagnosed with an STI than non-prescribed contraceptive users. The purpose of this dissertation is to understand multilevel factors contributing to condom use decision-making and STI risk perception analysis among AYAW who use prescribed contraceptives. Data was using qualitative research methods in two separate studies. In …

Con Respeto Y Dignidad: Transforming Educational Experiences For Students Of Color By Addressing Disproportionate Discipline Practices, Selene Munoz

Dissertations

Discipline practices wield significant influence over the social dynamics within educational settings and profoundly impact students’ ability to attain academic and social gains crucial for their success. The racialization of school discipline has been linked to negative effects on student’s academic trajectories and life outcomes. Consequently, school administrators can play a crucial role in effecting cultural change within their organizations to support disciplinary practices that uphold students’ educational dignity. This study looked at the strategies employed by secondary level administrators to shift their school cultures aimed at addressing disproportionate disciplinary practices. Using a mixed methods approach, this study draws upon …

Best Practices In Academic Nurse Educator Role Transition: A Multiple-Case Study, Joelle L. Wolf

Dissertations

Healthcare is facing a crisis related to a shortage of nurses. One of the most alarming factors regarding this shortage is the lack of academic nurse educators (ANE). The problem addressed in this study was the shortage of ANEs due to obstacles in the role transition process. The theoretical framework used was the nurse educator transition theory which connected well with this study as this theory focuses on stages of ANE role transition. Two research questions were used that identified perceptions of best practices in role transition of ANEs and best strategies in retention. Participants were early-career ANEs with 1 …

Sales Professional Preservation: Examining The Impact Of Incongruent Ideological Belief Systems On Intentions To Quit Among Sales Professionals, Brian Lee Morgan

Dissertations

Organizations that lead with ideologies of moral tradition, politics, and social economics are playing a losing game. The ideological belief system congruence within the organization between leaders and members creates a better atmosphere with less turnover and better recruitment. Sales professionals want an environment free of ideological incongruence. Without ideological alignment, they will defect from the organization. Leaders are miscalculating the negative impact on members’ intentions to quit when they are faced with leaders acting upon ideology changes that affect the member-customer ecosystem. In addition, leaders should be aware of the personal attributes that can exacerbate turnover and work to …

The Pedagogical Impact Of Injury Through The Experiences Of Three Professional Trombonists, Caleb Owenby

Dissertations

As the stigma surrounding performance-related injuries in the brass community is slowly lifting, more musicians are openly seeking assistance for injuries, more musicians are willing to share their experiences with injury, and the musical community is becoming more knowledgeable in the realm of musician health. This research is aimed at preventing future dysfunctions in brass players, offering avenues of recovery for musicians currently experiencing an injury, and examining the current state of trombone pedagogy through the experiences of three performing trombonists.

Megumi Kanda, Colin Williams, and David Vining are professional trombonists and educators who have experienced an embouchure dysfunction or …

Community Outreach: A Piano Concert Designed For Children, Hsin Shih Liu

Dissertations

Evidence exists that music community outreach has been practiced for at least around a century in Western countries. However, in Taiwan, the idea of music community outreach is relatively new and not as commonly seen as in the United States. This research provides mention of community outreach organizations and individuals in Taiwan and the United States. Additionally, it is aimed to assist in designing more successful programs in the future. Included in this dissertation are a methodology of designing an effective concert program for children and the concert feedback form provided to the participants. This project featured three piano concerts …

Factors Influencing Teacher Retention In K-12 Public Schools In Rural Hawai’I As Perceived By K-12 Public School Teachers, Celeste Akiu

Dissertations

Purpose. This qualitative study aimed to identify and describe the factors influencing teacher retention in K-12 public schools in rural Hawai’i, as perceived by K-12 public school teachers examined within the framework of Mason and Matas’ (2015) conceptualization of four capital factors: human, social, structural, and positive psychological. Methodology. This qualitative study intended to identify factors that influenced teachers in rural Hawai’ian communities to remain in the profession. Convenience purposeful sampling was used to identify the nine teachers who participated in this study. The Four Capital Framework for Teacher Retention was used to guide the questions used in the interviews, …

Faculty Attitudes Toward The Preparation Of Baccalaureate Nursing Students For Practice In Hospital And Non-Hospital Settings, Lisa Radley

Dissertations

The ongoing nursing shortage worsened in recent years following the COVID-19 pandemic, has resulted in increasing concerns about future deficits in the nursing workforce. Many nurses are approaching retirement age at a time when the overall demand for healthcare services is expected to increase. Changes in nursing education have been recommended to ensure that the next generation of nurses are willing and prepared to meet the needs of an ageing population. Nursing faculty will have important roles in the education and mentoring of students to prepare them to care for diverse populations in a variety of practice settings. Understanding faculty …

A Design Thinking Mixed Method Study On Social-Emotional Learning Lessons For Early Elementary Learners, Emily Woodall

Dissertations

Social emotional learning (SEL) had largely been absent from early elementary curriculum, despite research which indicated the need for specialized SEL curricula for unique groups, especially students identified as gifted and talented, exceptional students living in geographically isolated areas, and unidentified gifted students from historically disadvantaged minority groups, including African American, Latinx, and Native American. The researcher proposed an SEL pilot in early elementary grades, including pre-kindergarten and kindergarten, may create a scaffolded approach to SEL curricula throughout the students’ educational experiences with a focus on scaffolding to specific subgroups, such as gifted and talented students with unique SEL needs. …