Digital Commons Network^™

Unsupervised Transfer Learning And Its Applications In Human Pose Estimation, Qucheng Peng

Graduate Studies Theses and Dissertations 2026

This dissertation advances unsupervised transfer learning by addressing critical constraints in data privacy, intellectual property protection, and deployment in unseen environments. We propose novel frameworks for three progressively restrictive settings: Black-Box Domain Adaptation (BBDA), Source-Free Domain Adaptation (SFDA), Domain Generalization (DG), and Lifelong Domain Adaptation (LLDA) for 3D human pose estimation (HPE). To address BBDA, where only model outputs are accessible, we introduce RAIN (Regularization on Input and Network). This framework utilizes Phase MixUp for frequency-domain input regularization and Subnetwork Distillation to combat source overfitting.

Extending these privacy-preserving paradigms to spatial tasks, we present the first SFDA framework for HPE. …

Characterization And Antibacterial Assessment Of An Isoborneol-Loaded Nanoemulsion, Sharon M. Rodriguez Villacis

Graduate Studies Theses and Dissertations 2026

In the United States, about 35,000 fatalities occur annually due to antibiotic resistant infections. It is progressively becoming one of the largest challenges when treating hospital-acquired infections. This decline in effectiveness of commonly used antibiotics makes it essential to identify, synthesize, and formulate compounds that possess antimicrobial activity against these common pathogens. Isoborneol, a compound that is naturally occurring terpene that can be derived from the Camphor tree, Cinnamomum camphora, is known for its antimicrobial properties in traditional medicine and in prior literature. To assess this hypothesis, an oil-in-water (OW) nanoemulsion of isoborneol was synthesized, characterized, and assessed for …

Black Mothers' Experiences Of Birth Trauma: A Conceptual Analysis And Mixed-Methods Study To Advance Perinatal Mental Health Counseling, Lisa Rickman

Graduate Studies Theses and Dissertations 2026

This dissertation study follows the manuscript model and consists of two manuscripts, one conceptual manuscript and one empirical study, both focusing on the experiences of Black mothers following psychologically and physically traumatic childbirth. The conceptual manuscript centers birth trauma within the social, historical, and cultural contexts of perinatal mental health disparities and obstetric racism. This framework guides clinicians in centering Black mothers’ needs utilizing Relational Cultural Theory to promote equitable perinatal mental health practice. The empirical study employs a phenomenological sequential mixed methods approach prioritizing interview data collected from Black mothers who experienced birth trauma. This study also explores their …

A Frequency-Dependent Hydrodynamic Modeling Framework For Offshore Platforms With Optimization-Based Parameter Identification, Md. Rafid-Ul Haque Sakif

Graduate Studies Theses and Dissertations 2026

Accurate prediction of hydrodynamic loads on offshore platforms requires drag coefficients that adequately capture their dependence on wave frequency. However, conventional implementations of Morison’s equation generally assume constant drag coefficients across the entire frequency spectrum, which can lead to inaccuracies in predicting platform responses under complex sea-state conditions. To address this limitation, this study proposes a frequency-dependent hydrodynamic modeling framework in which the platform response is decomposed into distinct frequency regions, specifically low-frequency and high-frequency components. Separate drag coefficients are assigned to each region to better represent the underlying flow physics. The decomposition is achieved using filtering techniques in the …

Bond Behavior Of Uhpc-Nsc Interfaces For Bridge Deck Repair Under Flexural Loading, Larissa Santiago La Banca

Graduate Studies Theses and Dissertations 2026

The use of ultra-high performance concrete (UHPC) has increased due to its superior mechanical properties and strong bond with normal-strength concrete (NSC). It is widely used as a repair material, particularly in bridge decks, where maintenance remains a challenge. However, the interface between UHPC and NSC is often the weakest region of the composite system and requires careful evaluation.

This study investigates the bond behavior between UHPC and NSC using different surface preparations, test setups, and UHPC materials. The experimental program included unreinforced beams with vertical interfaces tested under three- and four-point flexural loading, and reinforced slabs with horizontal interfaces …

Tl;Dr (Too Long; Didn't Read): Examining The Assessment And Causes Of Careless Responding Within Experimental Vignette Studies, David L. Sexton Jr.

Graduate Studies Theses and Dissertations 2026

Careless responding occurs when participants answer survey items without considering their content and poses a serious threat to data quality. However, while past research has examined its deleterious effects on both survey and low-stakes cognitive ability measures, little research has focused on careless responding in experimental vignette methodology (EVM) research. EVM studies require participants to attend to one or more experimental vignettes, which are carefully crafted written scenarios designed to manipulate a focal variable across conditions. However, if participants are careless in attending to study vignettes, they may not be exposed to the researchers’ intended experimental manipulations, thereby precluding them …

Teoría Y Creatividad. La Literatura Como Herramienta Educativa En El Aprendizaje Moderno De Textos Clásicos En El Idioma Español, Isabel D. Simon

Graduate Studies Theses and Dissertations 2026

In the following master’s thesis, literature is studied as an educational tool in the modern learning of classical texts in the Spanish language from both theoretical and creative perspectives. The theoretical framework to be used is based on the hermeneutic theory of Jean Grondin. The study is divided into three chapters, each focusing on a different literary piece. First, the medieval period is examined through Poema de Mio Cid (Cantar de Mio Cid) of anonymous authorship. In the second chapter, the Golden Age is analyzed through Don Quijote de la Mancha by Miguel de Cervantes. In the closing …

The Middle Space: Redefining Collaborative Directing In Adaptive American Collegiate Theatre, Tyler J. Simons

Graduate Studies Theses and Dissertations 2026

This thesis examines collaborative directing as an adaptive, relational practice that exists between rigid hierarchical authorship and fully collectivized creation. Challenging dominant binaries in directing discourse that frame leadership as either singular or egalitarian, this study argues for a “middle space” in which authority, authorship, and responsibility are continually negotiated in response to institutional structures, pedagogical contexts, and interpersonal dynamics. Directing is framed not as a fixed methodology or ideological position, but as a responsive practice shaped by context. Grounded in a practice-as-research (PaR) methodology, the thesis analyzes four productions: Rhinoceros (Theatre UCF, 2024), The Tricks of Scapin (Freedom High …

Code-Switching, Identity-Shifting, And Identity Distress Among Black Undergraduate Women Attending Predominantly White Institutions, Erin Smith

Graduate Studies Theses and Dissertations 2026

Code-switching (altering language or speech) and identity-shifting (modifying appearance or behavior) are adaptive strategies often used by individuals from marginalized groups to navigate environments shaped by dominant cultural norms. Although these behaviors are commonly discussed in qualitative literature, relatively few quantitative studies have examined their psychological correlates among Black undergraduate women attending predominantly White institutions (PWIs). These behaviors may function as coping strategies in response to racialized and gendered expectations, yet the psychological implications of these strategies remain understudied. The present study examined the relationships among identity distress, code-switching, identity-shifting, and gendered racial identity centrality within a diverse sample of …

The Interaction Between Academic Self-Efficacy And Social Support: Exploring Moderation Effects On Academic Performance And Emotional Well-Being During The Transition To Secondary School, Luis Josué Ortiz Martes

Theses and Dissertations

The transition to secondary school can intensify academic demands and emotional strain, making it a critical context for examining students’ psychological and social resources. This applied dissertation examined whether perceived social support (SS) moderates the association among academic self-efficacy (ASE), academic performance (AP) and emotional well-being (EWB) among seventh-grade students at a private, multilingual school in Puerto Rico. Using a time-lagged, nonexperimental correlational design, 14 students completed the academic subscale of the Self-Efficacy Questionnaire for Children (SEQ-C) and the Social Support Appraisals Scale (SS-A) at the start of the academic year; EWB was assessed at midyear with the Negative and …

La Relación De La Estructura Organizacional Del Programa De Transición En La Efectividad De Los Servicios De La Secretaría Asociada De Educación Especial En Puerto Rico, Janet López De Jesús

Theses and Dissertations

Esta disertación aplicada examinó la relación entre la estructura organizacional del Programa de Transición y la efectividad de los servicios ofrecidos por la Secretaría Asociada de Educación Especial (SAEE) del Departamento de Educación de Puerto Rico. El estudio surgió ante la necesidad de comprender cómo los elementos estructurales del sistema educativo influían en la prestación de servicios dirigidos a estudiantes con discapacidades durante su proceso de transición hacia la vida adulta, particularmente en áreas como el empleo, la educación postsecundaria y la vida independiente. La investigación se desarrolló mediante un enfoque cuantitativo, con un diseño descriptivo correlacional. Los datos se …

Relación Entre El Liderazgo Situacional En Directores Escolares Y Nivel De Competencias Digitales Integrando Los Estándares Iste-El En Escuelas Ore Arecibo, Puerto Rico, Mayra Enid Rodríguez Romero

Theses and Dissertations

Esta investigación examinó la relación entre el liderazgo situacional en directores escolares y el nivel de competencias digitales, integrando los Estándares ISTE para Líderes Educativos (ISTE-EL) y la Teoría de Liderazgo Situacional, en escuelas del sistema público pertenecientes a la Oficina Regional Educativa de Arecibo, Puerto Rico, durante la pandemia del COVID-19. El estudio surgió ante la necesidad de comprender cómo los directores escolares respondieron a la transición abrupta de un modelo educativo presencial a uno virtual en un contexto caracterizado por limitaciones estructurales, tecnológicas y organizacionales. Se empleó un diseño cuantitativo de alcance descriptivo-correlacional, con una muestra de 30 …

Culturally Responsive Pedagogy: Its Role In Maximizing Students’ Performance On Standardized Tests, Keisha Ricketts-Martin

Theses and Dissertations

This applied dissertation was designed to highlight the importance of pedagogy for cultural responsiveness, and to explore the relationship between such pedagogy and middle school students’ performance on state or standardized tests. Therefore, this study explores the educational or academic values that students will gain from being engaged in a learning environment that recognizes their culture and uses it as a tool to maximizing their educational outcomes.

This research employed convergent parallel mixed method design. Therefore, it implemented the qualitative and quantitative approach at the same time and placed equivalent worth to the information collected by each approach. Therefore, the …

La Enseñanza En Línea Para Superar La Deficiencia En El Aprendizaje De La Biología En Estudiantes Del Primer Año De Una Universidad En Puerto Rico, Sergio Medina Ríos

Theses and Dissertations

Esta investigación aplicada se desarrolló a partir de una preocupación concreta observada por el investigador en su trayectoria como educador universitario en Puerto Rico: la dificultad persistente de los estudiantes de primer año para comprender conceptos fundamentales en biología. Muchos de estos jóvenes ingresan a la universidad con lagunas formativas que limitan su aprovechamiento académico, especialmente en disciplinas científicas que demandan razonamiento crítico y conceptualización abstracta.

Frente a esta realidad, el estudio propuso la implementación de estrategias de enseñanza en línea como respuesta pedagógica a dicha deficiencia. Con base en la experiencia adquirida en la impartición de cursos virtuales, se …

Percepción Del Liderazgo Para El Uso De Tic En Educación Secundaria Durante El Ambiente Vuca De La Cuarentena Por Covid-19, Josefina Fernández

Theses and Dissertations

La presente investigación tuvo como propósito analizar e interpretar la percepción de los docentes de educación secundaria respecto al proceso de liderazgo que facilitó la adopción de las tecnologías de la información y la comunicación (TIC) como único medio para dar continuidad al proceso educativo durante la cuarentena por COVID-19. El estudio partió del reconocimiento de que esta transición se desarrolló en un contexto volátil, incierto, complejo y ambiguo (VUCA), en el que los líderes escolares debieron afrontar ausentismo, resistencia al cambio, presión emocional y exigencias pedagógicas y tecnológicas sin precedentes.

Desde un enfoque cualitativo con orientación fenomenológica, la investigación …

Examining Language In Exclusionary Discipline Practices: A Mixed Methods Study Of A Medium Florida School District, Kathleen A. Wonnell

Theses and Dissertations

This applied dissertation examined office discipline referrals and the language used by teachers when describing disciplinary incidents. Additionally, it explored the coding assigned by administrators to these office discipline referrals and how those codes impacted the consequences assigned, possibly contributing to the use of exclusionary discipline. This mixed-methods study sought to contribute to the body of research on exclusionary discipline and disproportionate disciplinary outcomes. Office discipline referrals that resulted in exclusionary discipline in two comprehensive high schools were examined and administrators from the same schools who are responsible for coding disciplinary incidents were interviewed.

Themes that emerged from examining the …

Employee Perceptions On The Role Of Job Demands And Burnout On Employee Engagement In Nonprofit Sector: A Qualitative Descriptive Study, Tania P. Sierra

Theses and Dissertations

This applied dissertation was designed to explore how nonprofit employees perceive the role of job demands and burnout in shaping employee engagement. The study focused on nonprofit organizations in Southern Arizona and used a qualitative descriptive methodology to center employee voice and provide context-rich insights into workplace well-being. Semi-structured interviews were conducted with 15 participants representing diverse roles and career stages. The study aimed to inform nonprofit leaders and stakeholders about the relational and structural conditions that influence engagement, resilience, and emotional labor in mission-driven environments.

Thematic analysis revealed six interrelated themes, including role multiplicity, time pressure, emotional labor, and …

Estrategias Lúdicas Como Didáctica En La Formación Especializada De Licenciados En Educación Infantil, Fe Rosalía Alba Veloz

Theses and Dissertations

El propósito de este estudio fue explorar la percepción que poseen los docentes acerca del uso de estrategias lúdicas como recurso didáctico en la formación especializada de los estudiantes de la Licenciatura en Educación Infantil, y cómo dichas percepciones inciden en sus prácticas áulicas dentro de una universidad pública en República Dominicana. La investigación se fundamentó en teorías constructivistas, particularmente en el enfoque Histórico-Cultural de Vygotsky y en la noción de zona de desarrollo próximo, además de los aportes de diversos autores que han resaltado la importancia de vincular teoría y práctica, reconocer el papel de las emociones en el …

Efectividad De La Educación A Distancia Usando La Plataforma Del Microsoft Teams Entre Los Maestros De Las Escuelas Intermedias De Puerto Rico, Minelly Irizarry Echevarría

Theses and Dissertations

Este estudio examinó cómo los docentes de las escuelas intermedias de la zona sur de Puerto Rico aplicaron la educación a distancia utilizando la plataforma Microsoft Teams, implementada por el Departamento de Educación de Puerto Rico. A través del aprendizaje colaborativo, el aprendizaje significativo y las tecnologías de la información y comunicación, se identificaron las áreas de necesidad y oportunidad de los docentes al implementar dicha plataforma. El objetivo fue establecer la efectividad que presentó el educador al momento de lograr un proceso de enseñanza-aprendizaje efectivo en los educandos.

El soporte teórico de esta investigación se fundamentó en las teorías …

A Case Study Of Employees’ Perception Of Leadership Styles In Law Firms, Naylet M. Sanchez

Theses and Dissertations

This applied dissertation explored employees' perceptions of their supervisors’ leadership styles and how those perceptions shape their job performance and satisfaction within a mid-sized personal injury law firm operating across multiple offices in the Southeastern United States. The effectiveness of leadership styles in law firms significantly influences employee performance, productivity, and organizational success, yet the unique contextual factors of legal practice environments have remained substantially underexplored in the leadership literature. Much of the existing research has focused on general organizational settings rather than the knowledge-intensive, hierarchical, and high-pressure dynamics that characterize law firms. This applied dissertation was designed to address …

The Lived Experiences Of Hispanic Women In The Workforce: The Journey To Leadership And Leadership Styles, Ileana Sanchez

Theses and Dissertations

This qualitative study explored the lived experiences of Hispanic women in leadership positions within the United States workforce. Grounded in Interpretive Phenomenological Analysis (IPA), the study examined how Hispanic women interpreted the challenges and opportunities associated with their intersecting identities as both Hispanic and female leaders. Data were collected through semi-structured interviews with eight Hispanic women currently serving in leadership roles across diverse industries.

Findings revealed that participants encountered persistent systemic barriers, including underrepresentation, intersectional discrimination, limited access to mentorship and leadership networks, and pressures to conform to dominant workplace norms through code-switching. These challenges were cumulative and embedded within …

First-Year Academic Success Strategies For Student Veterans, Vincent Ciarla

Theses and Dissertations

This qualitative case study explored the perceptions and experiences of student veterans regarding academic success strategies during their first year of college. The study was guided by three research questions examining perceived difficulties, needed support systems, and overall transition experiences. Five student veterans who had successfully completed their first year at a community college participated in semi-structured interviews. Data were analyzed using multi-cycle coding procedures, including open coding, pattern coding, and cross-case analysis, resulting in the identification of recurring themes.

Findings indicated that participants experienced initial confusion related to institutional processes, challenges navigating educational benefits, and difficulty adjusting to differences …

Effects Of Mental Health Services On Adolescents’ Mental Health-Related Behavior Problems And Academic Performance, Marsha Bernard

Theses and Dissertations

The problem to be addressed in the research study was that students who are marginalized and racially profiled exhibit behavioral problems in school and lack the resources to understand and manage their emotional behaviors. The purpose of the study was to determine how mental health counselors in schools and in the community can assist marginalized families with adequate mental health services. The study sought an understanding of the underlying causes of disruptive behaviors and miscommunication between students and administrators. Overall, the study revealed that mental health has an impact and plays a critical role in the day-to-day experiences of marginalized …

El Estrés Laboral Como Factor De Riesgo En El Rendimiento De Los Docentes De Una Institución Privada De Educación Superior En Puerto Rico, Sarahi Alvarado Rivera

Theses and Dissertations

Los seres humanos en diferentes momentos de su vida han experimentado lo que es el estrés, y las organizaciones de una forma u otra han buscado disminuir o eliminarlo dentro del entorno laboral. El estrés laboral es un factor determinante en el desempeño laboral, las enfermedades y la estabilidad emocional de los recursos humanos en las organizaciones. Este trabajo se enmarca en un enfoque cualitativo a través de un estudio fenomenológico.

El propósito de este estudio fue valorar la incidencia del estrés laboral como factor de riesgo en el rendimiento de los Docentes de una Institución Privada de Educación Superior …

From Bias To Bottleneck: A Quantitative Analysis Of Gender Preferences In Tech Hiring, Uma Chidambaram

Theses and Dissertations

This applied dissertation examined whether gender preferences influence hiring decisions in the information technology (IT) sector, and whether such preferences contribute to the ongoing labor shortage in the field. Despite national and international initiatives to close the gender gap, women continue to represent only 28% of the United States IT workforce and remain significantly underrepresented in technical and leadership roles. Grounded in the Eagly and Karau (2002) Role Congruity Theory of Prejudice, this study investigated whether evaluator gender and candidate gender alignment affect interview selection outcomes at the résumé screening stage for both leadership and non-leadership IT positions.

A quantitative, …

Efectos Del Uso De La Tecnología En El Aprovechamiento Académico Y El Desarrollo De Habilidades Lingüísticas Y Escritas En Estudiantes De Tercero A Quinto Grado De Una Escuela Privada Del Área Este De Puerto Rico, Sonia I. Estrada Guzmán

Theses and Dissertations

El propósito de este estudio fue analizar los efectos del uso de la tecnología en el aprovechamiento académico y el desarrollo de habilidades lingüísticas y escritas de los estudiantes de tercero a quinto grado en una escuela privada del área este de Puerto Rico. La investigación buscó identificar cómo las herramientas tecnológicas influyeron en la comprensión lectora, el dominio de las reglas gramaticales, el conocimiento de las normas ortográficas y la capacidad de redacción escrita. El marco teórico utilizado fue la Teoría del Aprendizaje Móvil de Traxler. El diseño del estudio fue cuantitativo con un enfoque cuasiexperimental y el instrumento …

Teacher Perceptions Of Social-Emotional And Behavioral Factors That Impede Preschool Adjustment, Allease J. Glamore

Theses and Dissertations

Children with behavioral and social-emotional challenges struggle to adjust to the preschool environment which places increased demands on preschool teachers to implement effective strategies. The purpose of the study was to assess teachers’ perceptions regarding social-emotional and behavioral factors implicated for successful preschool adjustment. The theoretical framework guiding this study is grounded in the integration of Bronfenbrenner’s ecological systems theory, social-emotional learning theory, and behavior theory. A case study design was used to examine the perceptions and use of social-emotional and behavior interventions and supports by four early childhood teachers across two programs.

Data were collected using qualitative in-depth one-on-one …

Análisis De Las Competencias Digitales Docentes Aplicadas Al Modelo Educativo Híbrido En Una Universidad Privada De Puerto Rico, Ishwara Ayala Ortiz

Theses and Dissertations

El modelo educativo híbrido ha surgido como una alternativa que integra la educación tradicional con los avances alcanzados durante la pandemia, convirtiendo la competencia digital docente en un aspecto cada vez más relevante. Esta disertación aplicada analizó las competencias digitales de docentes universitarios en la implementación del modelo educativo híbrido en una universidad privada de Puerto Rico, enmarcada en el modelo TPACK y la teoría conectivista.

El estudio adoptó un enfoque cuantitativo con diseño no experimental de corte transversal exploratorio, utilizando el cuestionario HybridEduCom para medir dichas competencias. La muestra estuvo conformada por 40 docentes de una IES privada en …

Increasing Reading Comprehension Of Middle School Students With Hearing Disabilities, Abbis Bivins

Theses and Dissertations

In this study, the effectiveness of researcher-created training sessions for teachers designed to improve reading comprehension in class for students who are deaf or hard of hearing was examined. The training was focused on key instructional components, including morphology, syntax, vocabulary, phonology, explicit feedback, and activation of prior knowledge. Additionally, parent-focused strategies such as collaboration with professionals, reading routines, summarization, interactive reading, and the use of home language were taught. A qualitative research design was used to explore the perceptions for both teacher and parent groups following participation in six 1-hour training sessions.

Teachers’ findings indicated increased confidence, intentional instructional …

Manejo De Oportunidades En Tiempos De Crisis: Liderazgo Y Cambios En Una Organización -Estudio De Caso, Maria Valente

Theses and Dissertations

Esta disertación aplicada fue diseñada para proporcionar informaciones relevantes sobre situaciones de crisis que amenazan la supervivencia de las organizaciones. Además, busca comprender los fenómenos que desarrollan las crisis y explorar los resultados significativos del liderazgo en tiempos de crisis.

Se empleó un diseño de investigación cualitativa. Los elementos descritos en esta investigación cualitativa evalúan el impacto de las situaciones de crisis, describiendo cada etapa y factores intrínsecos y extrínsecos que son responsables por la desestabilidad en la organización.

En este estudio se identificaron las prácticas de liderazgo y los proyectos estratégicos que permiten planificar oportunidades de cambio en el …