Digital Commons Network^™

Effect Of Material And Processing Lag Time On Radiant Energy Penetration And Modulus Of 3d-Printed Indirect Bonding Jig Materials, Megan Meyer, Kamal Awad, Baylie Subjeck, Joe C Ontiveros, Venu G Varanasi, F Kurtis Kasper

Faculty, Staff and Student Publications

Objective: To investigate the effect of the time between 3D printing and post-print processing (lag time) on the modulus and radiant energy penetration of 3D-printed indirect bonding jig materials.

Materials and methods: Three 3D-printed resins (Formlabs IBT Resin, SprintRay IDB 2, Pro3dure GR-18.1 IB) were tested for three lag times (0, 16 and 64 h; n = 10 per group). Radiant energy penetration was measured using a power meter, and Vickers hardness was assessed for composites cured through the samples. Mechanical properties were evaluated using uniaxial testing and three-point bending.

Results: Both the resin type and lag time significantly affected …

The Rider (2025-12-01), Daniela Martinez Salazar

The Rider Archives

Vol. 11, No. 13

Public Health Trade-Offs During A Pandemic: Mobility Decline And Hypertension Risk In India, Arpita Khanna, Tomoki Fujii

Research Collection School Of Economics

The Covid pandemic dramatically altered patterns of daily life, particularly through widespread declines in mobility due to lockdowns and social distancing measures. While the economic and epidemiological effects of these restrictions have been widely studied, their broader health implications remain underexplored. This paper investigates the relationship between mobility decline during the Covid pandemic and hypertension outcomes in India. Leveraging district-level variation in mobility from Google Community Mobility Reports and health data from the 2019–2021 Indian Demographic and Health Survey (DHS), we find that a 1 percentage point reduction in mobility over the 30 days prior to interview is associated with …

Evaluating Healthcare Professionals’ Perceptions Of The Ist Algorithm In Maternal-Fetal Health Clinic: Usability And Satisfaction, Terri Taylor

Doctor of Nursing Practice Projects

Background: Standardizing substance-use screening in perinatal care is essential for optimizing clinical decision-making and promoting equitable patient outcomes. To address gaps, the Integrated Screening Tool (IST) algorithm was introduced in a Maternal–Fetal Medicine (MFM) clinic. However, 2023 data revealed inconsistent utilization. Evaluation Question: This Doctor of Nursing Practice (DNP) project evaluated: (1) How do nurse practitioners, medical doctors, and registered nurses perceive the usability of the IST algorithm for standardized drug screening in pregnancy? (2) How do these providers rate their satisfaction with the IST algorithm in managing patients with positive drug screens? Methodology: A cross-sectional survey was conducted with …

Bilingualism Matters: A Critical Discourse Analysis Of California Language Policy, Benjamin V. Roath

Electronic Theses, Projects, and Dissertations

In June 1998, California voters passed Proposition 227, a ballot initiative mandating that all public school instruction be conducted in English, with over 61% approval. This policy imposed additional challenges on students with limited English proficiency (LEP), many of whom are immigrants or children of immigrants. At the margins of these political and educational agendas lies the issue of bilingual education. This study examines the role of bilingual education in multilingual contexts and critiques the continued reliance on monolingual frameworks that marginalize linguistic diversity. Focusing on Proposition 227 (1998) and its repeal through Proposition 58 (2016), the research explores shifting …

School-Based Mental Health Services For Students With Disabilities: Exploring Benefits, Barriers, And The Role Of A Multi-Tiered System Of Supports, Veronica R. S. Meiners Perez

Electronic Theses, Projects, and Dissertations

Schools play a significant role in the academic, behavioral, and social-emotional development of children. Students with disabilities have legal rights to all necessary support for their educational success, including mental health supports. School-based mental health and its implementation are a work in progress, facing many barriers, but the benefits speak for themselves. Research suggests that the use of a multi-tiered system of supports ensures equal and equitable interventions for all students, especially students with disabilities. This literature review analyzes 16 studies regarding school-based mental health, special education, students with disabilities, and the MTSS framework. Support students' mental health, regardless of …

A Grain Of Sand On The Beach : The Impact Of Sense Of Belonging On Black Community College Students, Michael D. Love

Electronic Theses, Projects, and Dissertations

This qualitative case study sought to examine the impact of the sense of belonging on Black community college students in the Umoja Program. Students who participated in this study were enrolled at a community college in Southern California. The students were interviewed using an online format. The data retrieved through interviews were transcribed, analyzed, and grouped into themes that illustrate the lived experiences of the student participants. This study explores the differences in a sense of belonging between Black men and Black women in the community college system.

There were three central themes that emerged from the analysis of the …

Echoes Of Isolation: A Phenomenological Study On The Impact Of School Closures On Incarcerated Students’ Academic Achievement, Arthur F. Kimball

Electronic Theses, Projects, and Dissertations

This study examined the impact of the COVID-19 pandemic on traditionally marginalized male students, mainly Latino and African American, who were incarcerated in three juvenile detention facilities in Riverside County. The study explored the challenges these youth faced in accessing educational support during the pandemic, assessed the academic effects of remote learning, and identified culturally responsive strategies to improve their educational outcomes and help with their reintegration into society. A qualitative phenomenological approach was used to explore the lived experiences of incarcerated youth, emphasizing the barriers they faced and the resilience they showed during remote learning. Data were gathered through …

Nene Leakes As A Modern Medea, Jazzlyn L. White

Electronic Theses, Projects, and Dissertations

This paper examines how The Real Housewives of Atlanta functions as a modern form of Greek tragedy through its portrayal of Nene Leakes, whose rise and fall within the Bravo franchise mirrors the tragic arc of Euripides’ Medea. Both Medea and Leakes represent women who defy the systems that once empowered them Medea through her rebellion against patriarchal and familial structures, and Leakes through her public confrontation with the television industry that made her a star. By analyzing these two figures through rhetorical, feminist, and media studies frameworks, this paper argues that reality television operates as a contemporary stage …

Parental Involvement In Bilingual Language Learning In Early School-Aged Children, Jennifer Y. Arroyo Morales

Electronic Theses, Projects, and Dissertations

This project examines the critical role of parental involvement in supporting bilingual language learning (BLL) among early school-aged children in kindergarten through third grade. Bilingualism offers extensive cognitive, social, cultural, and economic benefits, yet many families face barriers that limit their ability to foster bilingual development at home. Grounded in Vygotsky’s Social Interactionist Theory and Kuhl’s research on sensitive periods of language acquisition, this project developed the Parent Handbook for Supporting Bilingual Language Learning in Early School-Aged Children. The handbook provides parents with accessible, research-based strategies that transform everyday routines into opportunities for bilingual growth. Designed to address barriers such …

Housing Programs And Resources Available For Transitional Age Youth Population: A Scoping Review, Amanda N. Esquivel

Electronic Theses, Projects, and Dissertations

Transitional Age Youth (TAY), are defined as individuals aged 16 to 24 transitioning from adolescence to adulthood. TAY face unique challenges in securing stable housing and developing the life skills necessary for independent living. This population often encounters significant barriers such as a lack of affordable housing, limited access to supportive services, and the residual effects of childhood trauma, systemic inequities, or time spent in foster care or juvenile justice systems. Without adequate support, TAY are at a heightened risk of homelessness, unemployment, poor mental health outcomes, and continued cycles of instability. This research paper explores and identifies effective housing …

Potential Adverse Effects On Lifestyle And Food Intake Pattern In Night Shift Workers, Stacie L. Coleman

Electronic Theses, Projects, and Dissertations

Abstract

Night shift work is prevalent in healthcare and other industries, yet its effects on lifestyle factors such as food intake, sleep quality, and mental health remain underexplored. This study investigates the impact of night shift schedules on nurses’ wellness, focusing on eating patterns, sleep, physical activity, and mood. A sample of 13 nurses were divided into two shift groups: day (n=5) and night (n=8); and they completed a questionnaire to assess the variables related to their behavior, food choices, eating habits, sleep patterns.

The results of previous research studies indicate that night shift nurses are more likely to adopt …

Un-Imagining The Anglo Southwest And The Impossibility Of Trans-Scription, Lynnette M. Maphies

Art & Art History ETDs

This thesis is an interrogation of the Anglo Southwest as a problematic and persistent regional and national construct. I propose that the Anglo Southwest emerged at a pivotal moment in the late nineteenth century during which Americanist approaches to geography, anthropology, and the arts, were being shaped to define the region and determine the production and distribution of knowledge. This resulted in an Anglo view of the Southwest as uninhabited, silent, and imaginary, which omitted the actuality of silencing Native voices, cultural appropriation, and the taking of resources and land. Army surgeon and amateur ethnographer Washington Matthews (1843–1905) serves as …

A Joint Mindfulness And Growth Mindset Intervention For Reducing Math Anxiety For Pre-Service Elementary Teachers, Evan Czysz

Dissertations

Pre-service elementary teachers (PSTs) have often exhibited high levels of math anxiety, which can negatively influence their confidence, learning, and future teaching in mathematical settings. The purpose of this phenomenological case study was to understand the influences an intervention focused on growth mindset and mindfulness-based practices has on preservice elementary school teachers’ perceptions of mathematics at a mid-sized university in the Rocky Mountain Region of the United States, and sought to answer the following questions: Q1 Does a joint mindfulness-based and growth mindset intervention impact pre-service teachers’ levels of math anxiety? Q2 What were pre-service elementary teachers’ experiences with a …

Making Meaning Of The Dissertation Process: An Interpretative Phenomenological Analysis Study Exploring Counselor Education Students’ Experiences And Beliefs About The Traditional Dissertation Process, Brianne Dixon

Dissertations

The traditional dissertation is a cornerstone of doctoral education yet is a process that is surprisingly under-researched. The purpose of this interpretative phenomenological analysis (IPA) study was to explore the lived experiences of doctoral students in counselor education and supervision (CES) programs with the dissertation process. More specifically, this study sought to understand the meaning seven doctoral students made of the process and this study explored counselor educator doctoral students’ beliefs about the traditional dissertation process after they completed the dissertation This study explored three research questions. Q1 What were the lived experiences of Counselor Education and Supervision (CES) doctoral …

Preschool-To-Kindergarten Transition For Students With Autism Spectrum Disorder, Kristin Claire Duncan

Dissertations

The transition from preschool to kindergarten leads to changes for students and their families regarding services, providers, and environments. The purpose of this phenomenological study was to explore how primary caregivers of children with autism spectrum disorder (ASD) perceived the transition from preschool to inclusive kindergarten. This study focused on the concerns, barriers, and experiences caregivers encountered throughout the transition process. By understanding caregivers’ perspectives, the study aimed to identify ways to improve kindergarten transition practices for future families. Based on existing literature, areas in need of investigation included the following: (a) how success of preschool-to-kindergarten transition impacts changes to …

The Coping Of Special Education Directors In The Western United States, Emily Mrazek Jones

Dissertations

The special education director in a school district has a wide-reaching role. Directors rely on extensive knowledge of educational law, instruction, child development, employee supervision, school finance, and more to positively impact the education of students with disabilities. Due to the extensive nature of the role, the practice of special education administration has been found to be stressful, and many practitioners experience burnout. Thus far, research has explored the nature of the role, the reasons for special education director stress, and directors’ preferences on surveys of positive coping strategies, but has not stepped back to ask the directors how they …

Culturally Responsive Functional Communication Training For Asian Families: A Single-Subject Design Study, Guofeng Shen

Dissertations

Children with disabilities, such as autism spectrum disorder (ASD) and intellectual disability (ID), frequently experience challenges related to social communication and are at increased risk of exhibiting challenging behaviors (CBs), particularly when they lack effective means to express their needs and desires. Functional communication training (FCT) is an evidence-based intervention shown to reduce CBs by teaching functional communication skills. However, limited research has explored the use of culturally responsive adaptations of FCT (CRFCT), particularly in the context of training parents from culturally, linguistically, and economically diverse backgrounds. This study addressed this gap by examining the effects of culturally responsive FCT …

Exploring The Use Of Culturally And Linguistically Responsive Practices Within The Multi-Tiered System Of Support (Mtss) Framework When Supporting Students With Disabilities At A Dual Language Immersion School, Sylvia Simmons

Dissertations

The integration of culturally and linguistically responsive practices (CLRP) within the Multi-Tiered System of Support (MTSS) framework has been recognized as a promising method for improving learning opportunities for diverse students. However, little to no research has been conducted on the intersection of CLRP within the MTSS framework to support students with disabilities in dual language immersion schools (DLI). This lack of research has posed challenges for educators seeking effective strategies to support diverse learners with disabilities in such settings. Therefore, the purposes of this qualitative case study were to (a) explore how a dual language immersion school utilizes the …

Student Engagement In High School Mathematics Blended Learning Classrooms, Therese A. Rinehart

Dissertations

Engagement is a student’s interest, participation, and motivation in the learning process and is a cornerstone of success in the classroom. The COVID-19 Pandemic overturned the traditional classroom, making the task of fostering engagement nearly impossible. Although pandemic-related research has largely focused on mental health and academic achievement, less attention has been given to instructional models promoting engagement in remote learning environments. Self-directed learning (SDL) is one model offering students digital autonomy and access to teachers and peers. This study examined the longitudinal data of student perceptions of their engagement through the COVID-19 Pandemic at an alternative high school and …

Using The Time We Have: Exploring Collaborative Instructional Planning For 8th Grade Georgia Studies In A Title I School, Bambara Timmerman

Dissertations

Teacher collaboration in middle schools is often emphasized in educational research and policy, yet content-specific collaboration, specifically for Georgia Studies (GAS), remains underexplored. This participatory qualitative case study explored how middle school GAS teachers perceive the influence of collaborative planning on their self-efficacy, the obstacles they face when attempting to collaborate, and what they perceive would foster a culture that supports ongoing collaborative planning. Grounded in constructivist theory, including social learning theory, situated learning, and social constructivism, this study focused on teachers in a rural Title I middle school. Data collection included demographic questionnaires, interviews, observations, document analysis, and researcher …

Teacher Leadership And Specially Designed Instruction: A Phenomenological Study Of The Lived Experiences Of Teacher Leaders And Special Education Teachers In Elementary Settings, Tangie M. Rahming

Dissertations

This qualitative phenomenological study examined the lived experiences of teacher leaders and special education teachers as they implemented Specially Designed Instruction (SDI) in elementary school settings. Despite SDI being a federally mandated component of the Individuals with Disabilities Education Act (IDEA), research consistently shows wide variation in how teachers interpret, deliver, and sustain SDI in real classrooms. Limited professional development, inconsistent coaching structures, and varying understandings of SDI across schools contribute to persistent gaps in implementation fidelity. To address these challenges, this study explored how teacher leaders support SDI implementation and how special education teachers make meaning of their instructional …

Culturally Relevant Pedagogy In Teaching And Learning In High School Social Studies Curricula In Georgia: A Case Study, Sharon Ann Mcmeans-Lukiri

Dissertations

Despite increasing diversity within Georgia’s high school student population, it remains unclear to what extent social studies teachers incorporate Culturally Relevant Pedagogy (CRP) in the planning and implementation of their instruction. Recent research indicates that many educators continue to struggle with developing effective instructional practices that meet the learning needs of students from vulnerable communities (Liasidou & Symeou, 2018). Students from these communities often experience lower academic achievement (Ladson-Billings, 2009), and when the curriculum fails to reflect or respond to their cultural backgrounds, they are more likely to disengage from school (Ladson-Billings, 2009). This gap between students’ cultural needs and …

Civics Teachers’ Perceptions Of Disciplinary Literacy Strategies That Use Primary Sources: A Case Study, Whitney Williams

Dissertations

This study has been designed as a case study to examine teachers’ perceptions of document-based strategies when combined with primary sources as pedagogical tools. The participants were ninth grade civics teachers. Semi-structured interviews, focused observations, and artifact collection were the sources of collected data. As the researcher, my constructivism guided this study through the lens of Albert Bandura’s social cognitive theory (SCT). Therefore, the participants’ perception will be interpreted through SCT concepts such as personal influences, behavioral influences, and environmental influences. Findings show a handful of disciplinary literacy strategies that occurred most often across all participants. Teachers valued an emphasis …

Detection Of Phase-Binning And Interpolation Artifacts In 4-Dimensional Computed Tomography Imaging Using Deep Learning And Rule-Based Approaches, Jorge Cisneros, Nathan H. Feldt, Yevgeniy Vinogradskiy, Richard Castillo, Edward Castillo

Department of Radiation Oncology Faculty Papers

BACKGROUND: Four-dimensional computed tomography (4DCT) imaging is a crucial component to lung cancer radiotherapy planning and enables CT-ventilation-based functional avoidance planning to mitigate radiation toxicity. However, 4DCT scans are frequently impaired by acquisition artifacts that corrupt downstream analyses that depend on lung segmentation and deformable image registration, such as CT-ventilation and dose accumulation.

PURPOSE: This study develops 3D deep learning models to identify phase-binning artifacts at the voxel level and a heuristic, rule-based method to identify interpolation slices within 4DCT images.

METHODS: We introduce a generator that systematically inserts synthetic phase-binning and interpolation artifacts into any artifact-free breathing phase obtained …

(Wp 2025-06) Ramsey And Keynes...And Sraffa And Wittgenstein: Change In Interwar Cambridge Economics And Policy, John B. Davis

Economics Working Papers

The Ramsey-Keynes exchange regarding the nature of probability is investigated in connection with the development of interwar Cambridge economics and Ramsey and Sraffa’s influences on Keynes and Wittgenstein. First discussed are Ramsey’s criticisms of Keynes and Wittgenstein; then Sraffa’s criticisms of Marshall and Wittgenstein. Ramsey was influenced by Peirce and pragmatism and Sraffa by Gramsci and the theory of cultural hegemony. Ramsey died in 1930 but Sraffa continued to interact with both Keynes and Wittgenstein. After his critique of Marshall he participated in the ‘Cambridge circus’ and turned to recovering the Classical economics of Ricardo. Keynes’s General Theory statement of …

Introducing Statistical And Machine Learning-Based Methods Of Enhancing The Resiliency And Security Of Electrical-Based Critical Infrastructure, Joshua Tyler

Masters Theses and Doctoral Dissertations

Since its introduction into society in the late 1800’s, electricity has become a critical component in how society has functioned. High-voltage electricity provides power for appliances that have become integral to daily living, such as lights, refrigeration, and Heating, Ventilation, And Cooling (HVAC). Low-voltage electricity is used to process and transmit information on and between computers. This information may pertain to medical, financial, and defense-related activities. Over the past hundred years, significant research has been performed to improve electrical-based technology’s capability, scale, resiliency, and security. This study focuses solely on resiliency and security, both of which require efficient data collection, …

Engineered An Ultrasmall Curcumin Oral Nanoformulation Restores Intestinal Integrity And Gut Microbiota Dysbiosis, Vivek Sharma, Prateeksha Prateeksha, Balwant Paliya, Sateesh Gupta, Sarvendra Singh, Anand Anunay, Sushil Agrahari, Shailendra Singh, Chandana Rao, Saroj Barik, Brahma Singh

Department of Biochemistry and Molecular Biology Faculty Papers

Antibiotic therapy for bacterial infections often disrupts gut microbiota (GM) and intestinal integrity, inducing chronic inflammation and inflammatory bowel diseases. An effective therapeutic intervention is urgently needed to alleviate the aforementioned adverse effects of antibiotics. Curcumin (CUR) reveals great potential to restore intestinal integrity and GM dysbiosis due to its strong antiinflammatory and prebiotic effects. However, the weak solubility and stability of CUR result in limited bioavailability and a short half-life, which restricts its clinical uses. An ultra-small CUR oral nanoformulation was created using a carboxylated galactomannan (cGM), facilitated by hydrogen bonding between the phenolic hydroxyl groups of CUR and …

The Impact Of Social Media Use On Postpartum Depression, Jaila Randle

Capstone Experience: Master of Public Health

Postpartum depression (PPD) is a serious form of depression that affects one in eight women. Symptoms include feeling sad all the time, being anxious, and having trouble bonding with their child. As social media sites like Facebook and Twitter become more important for moms to find support and health information, it has become a public health concern to learn how they affect mental health after giving birth. This literature review explores the positive and negative impacts of social media use on postpartum depression among mothers. A systematic search identified peer-reviewed studies published between 2014 and 2025. Studies were selected using …

Creating Actionable, Culturally Appropriate Interventions From Survey Data: A Community-Driven Capstone Pilot Project, Nicole Placke

Capstone Experience: Master of Public Health

The Community-Driven Capstone Track is a pilot program designed as an alternative to the traditional capstone track. With this track, students are able to engage with community partners through an integrative learning experience. The goal is to address real organizational needs in a way that demonstrates the mastery of foundational and concentration competencies.

Unlike the traditional capstone track, the CDC offers flexibility in both project type and deliverables. Rather than one formal written report, students might produce a series of products or tools. Deliverables are decided collaboratively between the student, community partners, and the faculty committee to ensure they are …