Digital Commons Network^™

Algorithmic Optimization Of Filter Bank: Harnessing Rapid Convergence And Its Applications, Keerthana B Ms

Theses and Dissertations

A novel optimization framework is proposed for the design of both uniform and non-uniform filter banks, aimed at improving the accuracy and computational efficiency of biomedical signal classification tasks, with a particular emphasis on the detection of sleep disorders and Alzheimer’s disease.The proposed algorithm is grounded in multirate signal processing theory and aims to achieve Near Perfect Reconstruction (NPR) with minimal computational overhead. The process begins with the optimization of a uniform cosine-modulated filter bank (CMFB), achieved through iterative frequency-domain analysis and parameter tuning. This is followed by the derivation of a non-uniform filter bank via selective merging of bandpass …

Algorithmic Optimization Of Filter Bank: Harnessing Rapid Convergence And Its Applications, Keerthana B

Theses and Dissertations

A novel optimization framework is proposed for the design of both uniform and non-uniform filter banks, aimed at improving the accuracy and computational efficiency of biomedical signal classification tasks, with a particular emphasis on the detection of sleep disorders and Alzheimer’s disease. The proposed algorithm is grounded in multirate signal processing theory and aims to achieve Near Perfect Reconstruction (NPR) with minimal computational overhead. The process begins with the optimization of a uniform cosine-modulated filter bank (CMFB), achieved through iterative frequency-domain analysis and parameter tuning.

This is followed by the derivation of a non-uniform filter bank via selective merging of …

What Strategies Do People With Aphasia With High Basic Psychological Need Satisfaction Report Using? A Qualitative Exploration, Abigail Irene Jensen

Theses and Dissertations

This study explored patterns in the communication strategies reported by people with aphasia with high versus low basic psychological need satisfaction. Participants with aphasia (12 females and 11 males) completed an initial experimental session during which the Basic Psychological Need Satisfaction and Frustration Scale (BPNS/F) was administered. Following this session, participants completed a semi-structured interview in which they described strategies used during daily communication. Each interview was transcribed and analyzed through reflexive codebook analysis, with emphasis placed on the communication strategies they reported using. Participants were grouped according to whether their reported autonomy, competence, or relatedness on the BPNS/F were …

Granulocyte-Colony Stimulating Factor Effects On The Mesolimbic Dopamine Circuitry And Adaptations With Chronic Ethanol Exposure, Rachel Ji-Hyae Campbell

Theses and Dissertations

The mesolimbic dopamine (DA) system contributes to reward and reinforcement learning for ethanol (EtOH). The nucleus accumbens (NAc) receives DA input from the ventral tegmental area (VTA) encoding rewarding information. Acute EtOH increases NAc DA levels, and this DA response is attenuated with chronic EtOH exposure. Furthermore, chronic EtOH results in reduced DA release, increased DA clearance and presynaptic D2-type auto-receptor sensitization. Further research into EtOH-induced neural adaptations that modulate NAc DA release is explored herein, including changes in cholinergic interneurons (CIN), which are known regulators of DA transmission. One potential class of regulators are immune related cytokines, that can …

Personalized Emoji Prediction Framework Using Personality, Emotion, And User Preferences, Mariam Lotfy Gaafar

Theses and Dissertations

Emoji prediction plays a vital role in digital communication by enriching text with personality, individual style, and emotional tone. However, existing frameworks primarily rely on user-generated text combined with statistical or language models, often overlooking the importance of individual user traits and contextual information. Recent research highlights that integrating user-specific features, such as historical usage patterns and emotional context, can significantly improve emoji prediction accuracy. Building on these insights, we propose a comprehensive emoji prediction framework that incorporates user history, personality traits, and real-time emotional context. We leverage the Pan17 corpus, which contains a sufficient number of posts per user, …

A Predictive Framework For Early Detection And Personalised Monitoring Of Parkinson’S Disease Using Artificial Intelligence And Large Language Models, Priyadharshini S

Theses and Dissertations

Parkinson’s Disease (PD) is a multifaceted and progressive neurodegenerative disorder that presents a spectrum of motor and non-motor symptoms. Early and accurate diagnosis is essential for effective disease management and improved patient outcomes, yet remains clinically challenging due to symptom overlap and diagnostic limitations. This thesis proposes a comprehensive and interpretable artificial intelligence (AI)-driven diagnostic framework that aims to transform the early detection, personalised monitoring, and treatment recommendation process for PD. The proposed solution integrates deep learning, radiomics, evolutionary optimisation, and large language models (LLMs), ensuring a highly accurate and clinically adaptable system.

The research begins by analysing T2-weighted 3D …

Advancing Eye-Gaze Writing Systems With Computer Vision, And Dynamic Text Suggestions, Walid Abdallah Shobaki

Theses and Dissertations

Eye gaze writing, a novel interaction modality, has the potential to revolutionize communication for individuals with limited mobility. In our research, we investigated the deep learning algorithms efficiency for real-time eye gaze writing. We have compared many algorithms' performance in many computer vision areas, such as object detection in which we used first YOLOv8, the second algorithm SSD, and the third algorithm is Faster R-CNN, the second computer vision area is the image segmentation in which we used DeepLab and U-Net, and the last computer vision area is self-supervised learning we have used SimCLR algorithm. By evaluating these models on …

Design & Development Of Efficient Biometric Authentication And Key Agreement Schemes For Wireless Body Area Network, Aarthi S

Theses and Dissertations

Wireless Body Area Networks (WBANs) play a vital role in continuous health monitoring, where sensitive biometric and physiological data must be protected from privacy breaches and emerging quantum-based threats. Conventional security mechanisms are often inadequate due to resource constraints, scalability issues, and vulnerability to advanced attacks. To address these challenges, this research proposes a lightweight, scalable, and future-proof security framework tailored for WBAN applications, focusing on secure communication, privacy preservation, and quantum resilience.

An anonymous Certificate-Based Signcryption–Mutual Authentication and Key Agreement (CBS-MAKE) protocol is introduced to secure extra-body communications while ensuring patient anonymity. The protocol integrates Elliptic Curve Cryptography with …

Providing Instructional Literacy Videos Increases Literacy And Parent Engagement, Maryjoann Wilks

Theses and Dissertations

Abstract MaryJoAnn Wilks Providing Instructional Literacy Videos Increases Literacy and Parent Engagement 2023-2025 Thesis chair Susan Browne, Ed.D., Professor, Department Critical Literacy, Technology & Multilingual Education Master of Arts in Reading Education This qualitative research project explored the impact of a family literacy program designed to enhance third-grade students’ reading skills through the use of instructional videos and at-home literacy activities. Conducted in the town of Bridgeton, New Jersey, the study focused on themes of preparation, motivation, and participation to examine how families engaged with the program and supported their children's learning. Data were collected through observations, parent feedback, and …

Comunidades Y Vacunas: Findings On Vaccine Hesitancy In Latine Families With Autistic Children, Danica Leticia Limon-Mialkowski

Theses and Dissertations

Parent vaccine hesitancy (VH) and subsequent vaccine refusal for children has escalated in the U.S. over the past several years and is more common among parents with an autistic child compared to the general population (Zerbo et al., 2018). This is an important issue to address given that VH has led to a resurgence of vaccine-preventable diseases (DeStefano & Shimabukuro, 2019; Geoghegan, et al., 2020). Research shows that VH is affected by parent cultural background (Fombonne et al., 2020) and that minoritized groups are more likely to experience VH (48.1% in parents of color [POC] groups versus 22.9% in White …

High- Speed Wireless Interference Separation Based On Photonic Deep Learning Accelerators And Three-Dimensional Image Reconstruction For Medical Applications, Taichu Shi

Theses and Dissertations

This dissertation is centered on fast wideband interference management through advanced photonic signal processing and hybrid communication architectures. The core of this work is based on an optical pulse sampling technique proposed for photonic blind source separation (BSS) to recover wideband signals from their sub-Nyquist samples. With the use of ultra-short optical pulses to obtain statistically representative samples, this method retains important statistical properties of the signals while significantly reducing constraints imposed by analog to digital conversion and digital signal processing. Building on this foundation, we further apply the photonic BSS system within a hybrid free space optical (FSO) and …

Investigation Of The Isbr Method With A Quad Detector For The Measurement Of Turbine Rotor Inlet Temperature, A. Cole Cecil

Theses and Dissertations

Temperature measurements at the inlet of a gas turbine inlet have proven challenging due to the high flow velocities, limited space, and high temperatures. This work investigates the use of the Integrated Spectral Band Ratio (ISBR) method to measure temperature using a new set of gas bands and a new method for collecting, measuring m and converting raw signals to digital temperature data at low cost and high speed (4 Hz). The Pressurized Oxy-Coal (POC) reactor was refurbished and used in this work to simulate turbine inlet conditions. The POC was modified to produce a stable natural gas and air …

Enhancing Employment Readiness Of Information Technology (It) Professionals Of India - A Talent Refactoring Approach, Lakshminarayanan K.V

Theses and Dissertations

The Indian Information Technology (IT) sector is undergoing significant transformation due to the adoption of Industry 4.0 technologies such as Artificial Intelligence, Internet of Things, cloud computing, and cyber-physical systems. These changes have redefined workforce expectations, shifting employment readiness from mere technical competence to a holistic combination of adaptability, behavioral attributes, and continuous learning capabilities. In this context, the study proposes a Talent Refactoring Framework to address employability in a rapidly evolving VUCA–BANI environment by integrating organizational, career-oriented, and individual dimensions.

A review of existing literature reveals notable gaps in understanding employment readiness as an ecosystemic and psycho-social construct, particularly …

Impact Of Telehealth On Outcomes In Daily Practice, Shannon Stuebs

Theses and Dissertations

While telepsychology has existed in various forms for years and has been researched since the 1960s (Abrams, 2020), it was not until the COVID-19 pandemic that telepsychology started to be widely used. Prior to the COVID-19 pandemic, one study found that psychologists conducted only around 7% of their work via telepsychology, a number that jumped to over 85% in response to COVID-19 (Pierce, Perrin, Tyler, et al., 2020). While there has been a significant increase in the research exploring the efficacy of telehealth since the start of the pandemic (Lin et al., 2022), further research regarding long-term impacts and specific …

Exploring Sub-Protocols For Spectrum Cooperation And Transparency, Ashton Palacios

Theses and Dissertations

With the proliferation of terrestrial and space-based wireless radio frequency transmitters and receivers in recent years, there is a greater need for spectrum cooperation and transparency. Spectrum is a limited resource that is shared between all wireless devices, both active and passive. The spectrum needs of today and tomorrow demand new techniques to enable cooperation and device transparency. This dissertation explores an innovative field, wireless sub-protocols, that provides novel software solutions for spectrum cooperation and transparency. The first application is radio astronomy. Radio astronomy deploys highly sensitive, passive RF receivers to capture faint signals from distant celestial bodies. Because passive …

Non-Invasive Near-Field Microwave Sensors For Industrial Internet Of Things Applications, Abirami K

Theses and Dissertations

The industrial sector has been revolutionized by Industrial Revolution 4.0 with the advent of the Internet of Things (IoT) which integrates the physical environment using smart sensors and Artificial Intelligence (AI) mechanisms. This demands the design of smart sensors and actuators to improve the quality of services in Industrial IoT (IIoT). The sensor design using the microwave resonating principle has attracted the research and industrial community for portable, non-invasive, non-destructive and hygienic means to evaluate the quality of substances in the food and farming industry. The microwave planar sensor has advantages in terms of low footprint, low cost, and ease …

Seeding Science: Exploring Impacts From Interdisciplinary Project-Based Learning Experiences On Preservice Teachers Science Teaching Self-Efficacy, Kathryn Ruth Madden

Theses and Dissertations

Early childhood and elementary education preservice teachers often report having limited firsthand experiences in constructivist, inquiry-based science instruction. This can be a factor in contributing to nervous or anxious feelings about teaching science to young learners. To address this critical problem, this study explored the impact of interdisciplinary project-based learning (PBL) experiences on preservice teachers' selfefficacy. The study extended over six weeks of the preservice teachers' science methods courses. The early childhood participants engaged in interdisciplinary PBL by designing and exploring schoolyard gardens. The elementary participants investigated the local saltmarsh ecosystem focusing on the plants and animals. The PBL experiences …

Autism Care Continuum: Exploring Specialty Services Across The Lifespan Within U.S. Academic Medical Centers, Alexis Khuu

Theses and Dissertations

Autistic people—particularly adults—experience high rates of co-occurring mental health problems and often report unmet service needs. Although several barriers to accessing quality care are well-documented, the broader landscape of autism-specific services across the lifespan remains under-researched. This two-part thesis aimed to address this gap by examining the availability of autism-specific services, as well as patterns in service utilization and associated costs, among autistic children and adults. The first study employed a systematic web-scraping protocol and data extraction procedure to identify and characterize autism specialty services offered by U.S. academic medical centers. This work revealed a general lack of autism specialty …

The Digital Forum: A Pedagogical Approach To Teaching College English Composition, Thomas Edward Plichta

Theses and Dissertations

This action research study focused on the identification of ways to improve the curriculum of freshman Writing Intensive Seminars using an innovative multimodal pedagogical methodology, the Digital Forum, in addition to formal papers and in-class writing. The research examined a Writing Intensive Seminar with approximately 20 students; There were two Research Questions for the present study. RQ1: How does the incorporation of the Digital Forum as a pedagogical approach in college freshman writing classes influence students' levels of behavioral, cognitive, and emotional engagement? RQ2: How does the incorporation of Digital Forums in freshman English Composition courses affect the quality of …

A Call To Care: An Investigation Of Rhetorical Inquiry In First-Year Composition Educators, Madison Brooke Naimo

Theses and Dissertations

Throughout colleges and universities across the country, First-Year Composition is known to be a general education course requirement that commonly works to set students up for academic success throughout their postsecondary educational journey and pursuits. This general education course works to focus on developing composition-based skill sets that help students in various academic areas and disciplines of study throughout their undergraduate degree completion (Kinnevay, 1971; The Council of Writing Program Administrators, 2014). While much scholarship in First-Year Composition has focused on student growth and development, there have been minimal practical considerations and examinations of a large stakeholder in this education …

The Effect Of An Interdisciplinary Project On Students’ Understandings Of Mathematical Interdisciplinarity: A Qualitative Action Research Study, Jaime Krause

Theses and Dissertations

The siloed nature of education has likely caused some high school students to not recognize the interdisciplinary nature of mathematics, leading them to misunderstand its relationship to other subject areas. A misunderstanding of mathematical interdisciplinarity can cause issues when these students approach interdisciplinary problems later in life. The purpose of this study was to observe, investigate, and analyze the ways in which students understand mathematical interdisciplinarity following a collaborative and interdisciplinary project. I implemented a descriptive qualitative action research approach to determine how a collaborative interdisciplinary project on NASA technology in a high school mathematics course affects students’ understandings of …

Investigating The Ecology Of The Homeless Court: The Promise Of Quasi-Experimental And Statistical Learning Methods, Dylan Wong

Theses and Dissertations

Interactions with the legal system are a crucial factor in maintaining homelessness. Difficulties in addressing legal issues are barriers to accessing services and finding employment and housing. Across the United States, the homeless court is an emerging legal program that has been developed to break this cycle, but they appear to face numerous capacity and coordination problems. Few empirical and systematic investigations have been conducted on homeless court programs. Further, previous studies of homeless courts focus their process and outcome measures on the priorities of the legal system. An investigation into the ecology, or environmental context, of homeless persons would …

Increasing Professional School Counseling Advocacy Skills For The Practicing Secondary School Counselor, Beverly Denise Mccullough

Theses and Dissertations

This problem of practice addresses increasing Professional School Counselor (PSC) advocacy skills for the practicing secondary school counselor. Improvement science is the framework used to help solve this problem. The PSC improvement team consisted of a team of seven licensed professional school counselors, all with career experience in the secondary school setting. The team began their work with the goal of understanding the current system by participating in an initial empathy interview. Immediately after the empathy interview was concluded, each committee member completed an initial assessment of the School Counselor Self Advocacy Questionnaire (SCSAQ) to be used as an initial …

Investigating Individual Variability In Autistic Identity And Its Moderating Effects On Mental Health And Quality Of Life, Sydney Richelle Terroso

Theses and Dissertations

The autistic community has long voiced the mental health of autistic adults as a key clinical and research priority. Autistic identity, or the recognition and embrace of core autistic traits as integral to an individual's identity as a whole, may be a potential target for therapeutic approaches aimed at supporting well-being and quality of life. The current study investigates individual differences in self-reported autistic identity scores by demographic factors and by features of autism and health history using online survey data from N=225 autistic adults. Additionally, with a subset of the participants who completed an interconnected study of current mental …

From "Proletariat" To President:The Educational History Of Dr. Cleveland L. Sellers, Jr., Franklin J. Gause

Theses and Dissertations

The focus of my study is the life of Dr. Cleveland L. Sellers, Jr. as a Black activist educator. Using oral history interviews, autobiographical, and biographical resources, alongside a thorough examination of Sellers’ (1973) published works, speeches, and archival materials, I explore how his formative experiences and his experiences as a student activist during the 1954 - 1968 Civil Rights Movement shaped his understanding of education as a tool for liberation. Sellers was a prominent figure in the Civil Rights Movement in the United States. He later became a faculty member in the History department and the chair of the …

Esports Audience Segmentation: Means-End Chain Approach, Deokkyung Ock

Theses and Dissertations

As live-streaming platforms have fueled esports’ rapid growth, they have also diversified content from competitive matches to casual gameplay, creating a complex audience landscape. To capture this diversity, the present study applied means-end chain (MEC) theory to: (1) examine how esports audiences cognitively associate different content attributes with their expected consequences and underlying personal values; (2) segment esports audiences based on these unique MEC structures; and (3) compare consumption frequency of both watching and playing esports across the identified segments.

The current study adopted exploratory sequential mixed methods to achieve the study’s objectives. In Study One, in-depth interviews with 22 …

From Chalk Dust To Destiny: Race, Gender, Hair, And The Making Of My Stem Identity, Angela Gaines Hill

Theses and Dissertations

This critical autoethnography explored the evolving STEM identity of myself as a Black female student and educator and examined how race, gender, and hair politics intersected to shape experiences within predominantly white institutions. Guided by a two-fold framework of Critical Race Theory (CRT) and Transformative Leadership Theory (TLT) , I posed two research questions: 1) How has my STEM identity as a Black woman evolved over time through my experiences as a student and educator?; 2) In what ways does my current STEM identity as a Black woman, as understood through reflective practices, inform my pedagogical approaches and mentoring of …

Educational Technology In Peer-Led Academic Support In Higher Education: The Impact Of Technology-Focused Training On Peer Educators’ Session Plans, Christopher Gulino

Theses and Dissertations

Students interact with technology daily; whether that is in the classroom, engaging with classmates, or studying material. Although technology has been widely adopted across the field of higher education, it has not been widely utilized to engage with students through the peer-to-peer support model. The purpose of this action research was to evaluate the implementation of educational technology training and its effect on undergraduate peer educators’ confidence to utilize technology in their plans for their peer-to-peer support sessions at a university in the southeast of the United States of America. The research will address the following research questions: How confident …

Cultural Competency Of Teachers And Its Effect On Their Instructional Practices, Martin Sims

Theses and Dissertations

Core content teachers at S Middle School participate in a study that reveals how increased cultural competency levels among 7^th-grade core content teachers positively influences their instructional practices. The increased cultural competency led to a more inclusive and effective learning environment across all core content areas. Throughout the study, teachers reflected on their own cultural identities while also considering the diverse cultural backgrounds of their students in each class period. As a result, teachers gained a deeper understanding of how cultural factors shape students' learning experiences and needs. The participants adjusted their teaching strategies to better connect with …

Understanding Wildfire Risk Perception, Evacuation Readiness And Preparedness Information Awareness In The United States, Dominic Kyei

Theses and Dissertations

Wildfires disproportionately threaten lives, properties, and ecosystems within the U.S. states.Despite varying regional risks and demographic vulnerabilities, factors shaping public preparedness remain understudied. This study analyzes data from the 2023 Federal Emergency Management Agency (FEMA) National Household Survey (NHS), consisting of 507 participants, to identify key predictors of wildfire risk perception, evacuation readiness, and preparedness awareness across diverse demographic groups residing in high-risk states, including California, Arizona, and Florida. Using independent sampled t-test, ordered logistic regression analysis and correlation modeling, the study results indicate that past wildfire experience, preparedness efforts, geographic location, and perceived efficacy shape risk perception, with experienced …