Digital Commons Network^™

Learning Behaviors In Physics-Informed Deep Learning, Alex Glover

Electronic Theses and Dissertations

Physics-informed deep learning is a methodology in artificial intelligence aimed at combating the large training data requirement and the barrier of domain awareness that deep learning architectures commonly face in applications. Stochastic modeling integrated into the predictive models provides that domain knowledge. Variations of the Intelligent Driving Model impact the learning behaviors of the joint-training architecture. This thesis examines the effect of substituting the standard linear Intelligent Driving Model with a modified nonlinear version, as applied to real human driving behavior on the I-80 interstate. The experimentation also critically evaluates the complications that impede the viability of this architecture in …

Kinetic Analysis Of Hydrolysis And Hydrothermal Conversion Of Methyl Cellulose To Dodecane, Joseph Olembo Were

Electronic Theses and Dissertations

Environmental pollution due to emission of greenhouse gases and increasing global energy demand are some of the concerns associated Analysis with the use of fossil fuels. These concerns have triggered the exploration of sustainable and efficient methods for renewable energy production. One such method is the conversion of cellulosic biomass to hydrocarbon fuels using hydrogen bronze metals. Cellulose is the most abundant biomass globally, and thus its utilization can lead to more sustainable energy production. Previous studies have reported the conversion of cellulose to hydrocarbons at high temperatures and hydrogen pressure. This work focuses on the conversion of methyl cellulose …

A Kinetic Analysis On Hydrolysis And Hydrothermal Conversion Of Cellulose To Dodecane, Joel Nyangoka Onyancha

Electronic Theses and Dissertations

Cellulose, the most abundant biomass on Earth, offers a promising pathway for alternative energy through conversion into alkane hydrocarbons. Traditional methods rely on high temperatures and high-pressure hydrogen, often derived from petroleum. In this study, we investigated the conversion of Microcrystalline Cellulose using hydrogen metal oxides (bronzes) under milder conditions. Following ASTM E3417-24 hydrolysis protocols, we employed hydrogen bronzes with toluene for product extraction. This approach enabled conversion at lower temperatures without pressurized hydrogen. Products were analyzed using Gas Chromatography Mass Spectrometer for identification and Gas Chromatography Flame Ionization Detector for quantification. Our findings revealed the formation of a possible …

The Burden Of Care: A Phenomenological Inquiry Into The Lived Experiences Of Homeless Shelter Administrators Leading Through The Pandemic And Lasting Implications On Program Operations, Marie Adele Wilson

Doctoral Dissertations and Projects

The theories guiding this study are Maslow's Hierarchy of Needs, conflict theory, and complex systems theory, which explain the relationship between the theory and resource limitations and acquisition, systems, and nature of acquiring human needs. The purpose of this phenomenological study is to describe homeless shelter administrators'/directors' experiences delivering services during the COVID-19 pandemic on the Eastern Coast of the United States and Texas. It further seeks to unravel how the pandemic informed the delivery of services and program administration related to homeless shelters and its impacts. The research questions sought to understand the impact of COVID-19 on delivering services …

Exploring Teachers' Experiences Developing Adaptive Learning Systems With High-Stakes Testing Requirements: A Transcendental Phenomenological Study, Brian J. Le Fevre

Doctoral Dissertations and Projects

The theory that guided this study was Bandura’s self-efficacy theory, which was utilized to relate to teachers’ beliefs about engaging in behaviors influenced by high-stakes testing. A transcendental methodology was used for the study design as the study aimed to explore teachers’ shared experiences while bracketing my previous experiences. The sample population consisted of second- to sixth-grade teachers who instructed subjects who were assessed by high-stakes testing in the Southeastern United States. Data was collected using interviews, focus groups, and journal prompt responses. Following data collection, the data was coded and analyzed to develop the essence of the shared experiences …

High School Students’ Sense Of Belonging In Math, Marie Louise Stevenson

Electronic Theses, Projects, and Dissertations

A student’s sense of belonging in math describes the extent to which a student feels that they are a member of their math community. It is important to study math sense of belonging because it is believed that when a student feels that they are a valued and respected part of their math community, they are more likely to exhibit higher participation and performance in their math class and take more math courses in high school and college. They also have an increased chance of pursuing a STEM career. In this study, we investigated the math sense of belonging of …

Evaluating Trauma-Informed Care In Higher Education For Hispanics, Latino/A/X/E, And Afro-Latinos Impacted By Adverse Childhood Experiences, Daylene A. Medina, Lilian Grijalva

Electronic Theses, Projects, and Dissertations

Background: Henshaw (2022) discusses the importance of trauma-informed approaches in higher education institutes by implementing culturally responsive policy, research, and practice to support students impacted by trauma. However, less is known about how effective trauma-informed care is and its impact on the educational outcomes of racial and ethnic minority students, specifically Hispanics, Latino/a/x/e, and Afro-Latinos students in community colleges. Past studies have excluded Hispanics, Latino/a/x/e, and Afro-Latinos from research due to insignificant participation and risk re-traumatization. Objective: This evaluative study aims to determine effectiveness of trauma-informed care for adult (18 and older) Moreno Valley College students in their last academic …

Engineering An In Vitro Hipsc-Derived Cardiac Tissue Construct For Regenerative Medicine Applications, Larry Mendoza

Electronic Theses, Projects, and Dissertations

Cardiovascular disease is the leading cause of mortality across the world with invasive surgeries and pharmaceutical intervention commonly associated with urgent care. Moreover, congenital, progressive, and hereditary heart diseases rely on many forms of medical prevention and intervention (pharmaceuticals, x-rays, bloodwork, etc.). Developing a three-dimensional (3D) cardiac tissue engineered in vitro model to study human cardiac physiology can revolutionize biomedical research. The purpose of this research is to optimize natural & synthetic biomaterials to fuse cardiac stem cells and synthesize a 3D-printed in vitro model for disease modeling, drug delivery, and regenerative medicine. Natural biopolymers needed for such innovations are …

Numalyze: Numerical Analysis Web Application, Dev Kapupara

Electronic Theses, Projects, and Dissertations

Numalyze is an online platform that allows users to run and apply different numerical methods in real time. The application is built using Python and the Flask web framework. It provides an interface where users input mathematical functions and parameters to see the results for root-finding and integration methods, and to also perform reductions on matrices. By using a light-weight web framework and self-coded algorithms which removes dependency on massive external libraries—this application connects theoretical concepts to their practical implementation. It enables students and researchers to visualize the series of steps that each algorithm takes to compute results. Moreover, the …

Exploring The Factors That Influence Telehealth Usage Among Immigrants In The United States: A Mixed Methods Study, Jose M. Garcia-Castañeda

Electronic Theses, Projects, and Dissertations

Background: Immigrants in the United States continue to face barriers in accessing healthcare services which are rooted in systemic inequities, cultural disconnects, and language-related challenges. The growing presence of telehealth services has offered new opportunities to expand access, but it has also highlighted new barriers which are language proficiency and digital literacy which could increase the gap in services for already marginalized populations. These barriers are factors that influence outcomes such as delayed care, reduced preventative care, and overall poorer health outcomes. The Andersen Behavioral Model of Health Service Use (Andersen, 1995) provides a useful framework in understanding how predisposing, …

Effectiveness Of Mental Health Interventions Amongst Parents With Child Welfare Involvement, Clarisa Grano

Electronic Theses, Projects, and Dissertations

This study explores the effectiveness of mental health interventions provided by child welfare agencies to parents involved in the child welfare system. By employing a mixed-methods approach, the research aims to assess intervention outcomes, identify barriers to service utilization, and provide qualitative insights into parents' experiences with mental health services. The quantitative component will gather data on mental health outcomes through structured surveys, while the qualitative component will explore the lived experiences of parents through semi-structured interviews. Findings from this study will contribute to the development of culturally competent interventions and inform policy changes that address systemic inequities in mental …

Time Series Deep Learning Approach For The Intermittent Operational Performance Of A Wellhead Water Treatment And Desalination System, Michael G. Clement

Electronic Theses, Projects, and Dissertations

Distributed water treatment and desalination (DWTD) systems are becoming significant for serving disadvantaged communities that are geographically segregated from centralized water distribution networks. However, given the remote nature of the communities, these systems must operate autonomously adapting to intermittent operations due to varying water use patterns and unavailability of continuous manual labor support. Machine Learning models describing and forecasting system performance are critical, allowing for model-based control, performance forecasting, fault detection, and determination of causal relationships among process attributes. Accordingly, graph convolutional neural networks with an attention mechanism (GATConv) were developed to describe the intermittent operational profiles of a wellhead …

The Hodgepodge Creation: Amalgamated Adaptation In Video Games, Tom Chen, Tom Chen

Electronic Theses, Projects, and Dissertations

Amalgamated adaptation is a concept that involves blending multiple sources into a hodgepodge creation. This practice has become commonplace among game creators in recent years, yet it is neither readily covered nor explicitly mentioned in current video game scholarship. My previous research highlights the profound application of amalgamated adaptation to older texts, particularly myths and sacred texts from various cultures or communities. This method grants creators the autonomy to reinvent these texts in bold and extreme ways, achieved by melding borrowed ideas that complement and, at times, synergize with one another. I argue that single-source adaptations of myths, when reshaped …

On Bed Posture Recognition Using Deep Learning With Pressure Sensors, Farheen Akhter Ms

Electronic Theses, Projects, and Dissertations

In healthcare applications such as disease prevention, sleep quality evaluation, and patient monitoring, bed posture recognition is essential. Using pressure sensor arrays placed on top of or embedded in mattresses, this study investigates the application of deep learning models for non-invasive posture classification. Although they have been widely employed, traditional machine learning approaches like support vector machines (SVM) and k-nearest neighbors (KNN) sometimes struggle with feature extraction and real-time performance necessitating considerable processing resources. I implemented a model using conventional approaches to get over these restrictions, then fine-tuned it using the following deep learning architectures for bed posture recognition: ResNet-50, …

Effective Interventions For Women With Post-Traumatic Stress Disorder, Kathryn Antoinette Gonzales

Electronic Theses, Projects, and Dissertations

Women diagnosed with post-traumatic stress disorder (PTSD) often undergo powerless treatment interventions according to research. Institutionalized inequalities among service systems challenge women to receive access, begin, engage, and complete mental health services for PTSD. This mixed-methods systematic review sought to determine interventions that are effective for treating this client population. The preferred reporting items for systematic reviews and meta-analysis (PRISMA) tool was used to screen four different electronic databases: PsycINFO, Google Scholar, EBSCO, and OneSearch to identify peer-reviewed articles under a purposive sampling method strategy. Of the 159 studies screened, 15 met the inclusion criteria for this review (n =15). …

“I Have Returned Home”: Understanding The Re-Entry Experience Of Saudi Female Scholars After Completing Their Doctoral Studies In The United States, Hajer Asiri

Electronic Theses, Projects, and Dissertations

The experiences of Saudi female scholars returning from abroad remain underexplored. This study investigates how Saudi women in higher education institutions readjust and reintegrate into professional and cultural environments after completing doctoral studies in the United States. Using a narrative approach informed by transformational learning theory (TLT), it examines reverse culture shock and the coping mechanisms employed by these women. Five female participants from various Saudi institutions were interviewed in semi-structured sessions lasting 30 to 60 minutes. Thematic analysis revealed five key themes: Cultural Readjustment, Professional Reintegration, Family and Social Dynamics, Personal Transformation, and Coping Strategies. The findings underscore the …

Usage And Engagement Patterns Of Students In Online Learning Platforms, Sumalatha Panja

Electronic Theses, Projects, and Dissertations

Online leaning platforms play an important role in this modern education world by providing flexible and diverse learning opportunities. This study investigates the most engaged online learning platform and the pattern by which the students are mostly attracted to a particular platform by focusing on enrollments, duration, price and completion rate of each course across different platforms. The research questions asked in this paper are: (Q1) What are the most engaged online learning platforms by students? (Q2) What are emerging patterns of engagement of students in online learning platforms? The dataset which is used for answering these questions is being …

Functional Mocktails, Amber Barrer

Electronic Theses, Projects, and Dissertations

Background and Aims: Mocktails are alcohol-free beverages that emulate alcohol-containing cocktails. Americans are increasingly seeking these non-alcoholic beverage alternatives. As mocktails have increased in popularity, so have anecdotal health claims. Research has shown that the consumption of teas, herbs, roots, and juices provide health benefits. However, these have not been studied as a mocktail beverage. Functional mocktails may provide various health benefits due to their antioxidant properties, serving as an enjoyable alternative to alcoholic beverages.

Methods: A recipe book of 20 functional mocktails were created. The recipe book includes referenced research on the health benefits, antioxidative properties, recommended dosing, and …

Problematic Social Media Use And Its Effects On Adolescents’ Mental Health: A Longitudinal Study, Elaine Moreno

Electronic Theses, Projects, and Dissertations

Background: Problematic Social Media Use (PSMU) has been associated to increased levels of anxiety, depression, and disruptions in identity development among adolescents, who are especially vulnerable to the effects of excessive digital engagement (Keles et al., 2019). Even though there is increasing evidence to support these conclusions, many of the studies that are currently available employ cross-sectional designs, which makes it more difficult to identify the causal links between PSMU and mental health outcomes (Keles et al., 2019). This disparity raises concerns regarding the long-term effects of persistent overuse of social media as well as the directionality of these effects. …

What Is The Correlation Between 9-1-1 Emergency Psychiatric Calls In San Bernardino County And Mental Health Services, Lea M. Munoz

Electronic Theses, Projects, and Dissertations

It is important to address the mental health crisis in the United States to understand the effects it has on individuals, families, and communities and promote better access to mental health services. The mental health crisis has led to an increase in demand for mental health care and economically the U.S. has not been able to satisfy this demand. This paper raises awareness about the issue by emphasizing the need for better access to mental health, reducing the stigma in mental illness, building resilience in individuals, and connecting people to resources that will create a safer and more welcoming environment. …

Meta-Analysis Of Leadership Styles And Mental Health Management Strategies For University Leaders, Justin P. Mckinstry

Electronic Theses, Projects, and Dissertations

In this culminating project, a multiple-case study approach was used to investigate the impact of different leadership styles and their effects on mental health in the higher education sector. The research questions are: RQ1: What leadership styles in the past have positively affected employees' mental health at this higher education institution? RQ2: What leadership styles in the past have hurt employees' mental health at this higher education institution that caused a toxic work environment? Three real-world cases out of seventeen were selected and analyzed. The findings care RQ1: The transformational leader boosts and contributes to overall job satisfaction and well-being. …

Impact Of Water Quality On The Nutritional And Phytochemical Properties Of Culinary Herbs, Genesis Arroyo

Electronic Theses, Projects, and Dissertations

Water quality significantly affected food safety, especially since contaminated water impacted crop growth and the nutrient composition of foods. Nitrates occur naturally in vegetables. However, when introduced into the food supply through water contamination, excessive levels disrupted the natural physiological processes of vegetables and other agricultural plants. These excessive levels eventually led to nutrient imbalances, decreased phytochemical concentrations, and potential health risks such as the formation of carcinogenic N-nitroso compounds in humans. This study evaluated the effects of nitrates on the nutritional outcomes of food crops, focusing on commonly used culinary herbs. While synthesizing findings from relevant peer-reviewed articles, I …

The Benefits Of Hispanic Adult Children Caregiving For Their Older Adult Parents, Jesus Duarte, Jazmin Salazar

Electronic Theses, Projects, and Dissertations

This project proposal aims to explore the ways social workers can assist Hispanic adult children (AC) to find satisfaction with their role as caregivers for their older adult (OA) and family of their own, given the growth in the Hispanic population more services and interventions are needed to meet the needs of the Hispanic community. The primary objectives of this proposal are to identify social work interventions that align with Hispanic cultural values throughout different generations. And to explore the benefits and the positive aspects of caregiving for an older adult. A mixed-methods approach will be used, combining a demographic …

The Characteristics Of Students With Body Image Dissatisfaction In A Southern California School District, Isabelle Rose Labrie, Yaretxy Romo

Electronic Theses, Projects, and Dissertations

Body image dissatisfaction is an increasingly common issue among children and adolescents, often stemming from various factors such as peer influences, family dynamics, media exposure, and extracurricular activities. This dissatisfaction can have significant long-term effects on youths' mental health, including the development of depression, anxiety, low self-esteem, and eating disorders.

This proposed exploratory study aims to develop a new instrument by synthesizing insights from existing literature. A scoping literature review was chosen as the most appropriate method, as it allows for a comprehensive examination of available research on body image dissatisfaction. This research proposal seeks to fill a gap in …

The Impact Of Maternal Problematic Drinking On Daughter's Mental Health: A Systematic Review, Indianna Bouch, Alexzandria Haro

Electronic Theses, Projects, and Dissertations

Background: Parental alcohol use is a widespread issue and is known to have negative impacts on children's mental health. However, research on parent-child dyads concerning parental problematic alcohol use and child mental health outcomes has much less research. Objective: This systematic review aims to examine recent literature on the impact of mothers’ problematic drinking on daughter(s) mental health. Methods: The following databases were used: EBSCOhost Academic Search Premier, PsycINFO, and Google Scholar. The keywords included “mother”, “AUD”, “maternal AUD”, “impact on daughters”, “female COA”, “female ACOA”, “mothers with an AUD”, “problematic drinking”, “maternal alcoholic”, “impact on relationships”, …

Evaluation Of The Implementation Of Foster Youth Independent Living Programs In The State Of California, Ingrid Flores

Electronic Theses, Projects, and Dissertations

Foster youth transitioning into adulthood often confront a myriad of challenges stemming from limited social capital and unstable support systems. The transition out of foster care, particularly for Transitional Age Youth (TAY), is fraught with barriers including disconnection from familial ties, inadequate knowledge regarding higher education, financial instability, unemployment, and housing insecurity. In 2021, approximately 4,920 foster children aged out of the system, facing the option to participate in extended care programs designed to facilitate their transition into independent living. Despite these programs, many youths struggle to achieve self-sufficiency. Key legislation, including the Child Abuse Prevention and Treatment Act, and …

Unintended Consequences: How Direct Cash Payments To Families Experiencing Poverty Lowered Child Poverty Rates In The United States, Wayne Dunn

Electronic Theses, Projects, and Dissertations

Child poverty has adverse effects for the children who experience it and it has long term social and economic consequences into adulthood. This policy analysis looks at the policy choices America has made in addressing child poverty and what effects, if any, those policies have had. After reviewing traditional in-kind policy options for addressing child poverty, this article focuses on the decreases in the child poverty rate that occurred with the passage of pandemic era legislation that provided direct cash assistance to all Americans. Because the assistance programs only happened in two consecutive years and were terminated at the end …

The Role Of Medical-Legal Partnerships On Social Determinants Of Health For Vulnerable Populations In The Inland Empire, Sabrina C. Kinnally

Electronic Theses, Projects, and Dissertations

San Bernardino and Riverside counties face significant challenges in addressing the Social Determinants of Health (SDOH) for vulnerable populations, including housing instability, healthcare access, and food insecurity. This project examined the role of Medical-Legal Partnerships (MLPs) in providing services to vulnerable populations. Through a systematic review, the study explored the current state of MLPs and their effectiveness in addressing SDOH to reduce health disparities. The other purpose is to assist Agape Legal Service, Inc. (AGAPE), a non-profit organization, in completing their strategic plan, which aims to address the legal needs of vulnerable populations within the Inland Empire. The systematic review …

Ml Playground: Data Modification/Preprocessing And Model Simulation Tool, Marco D. Cerrato

Electronic Theses, Projects, and Dissertations

There is a heavy reliance on programming when it comes to learning machine learning (ML). This often creates barriers for students and newcomers unfamiliar with coding. While the lessons you learn in the classroom provide essential foundational understanding, some technical or practical aspects of ML—such as data preprocessing, feature engineering, and model tuning—are best learned through hands-on interaction. ML Playground was developed to act as a proof-of-concept application to address this gap by offering a browser-based, graphical user interface that lets users engage with core ML workflows without writing code. Designed with educational accessibility in mind, the application allows users …

From In-The-Head To In-The-World: Frameworks For Understanding And Applying Computational Thinking, Justin Olmanson, Gretchen K. Larsen, Azadeh Hassani

Department of Teaching, Learning, and Teacher Education: Faculty Publications

In the five decades since Papert coined the term Computational Thinking (CT), it has become a core framework for thinking about learning, problem-solving, design, and creativity. Although CT is most commonly, and initially, associated with the cognitive orientations involved in coding and learning to code, it also includes situated and critical processes related to computational problem solving. Herein we unpack ways researchers in different fields and points in time have organized CT. We include creative coding as a uniquely generative lens for rethinking CT, outlining its potential as an expressive, constructionist, and culturally situated practice. In doing so, we explore …