Digital Commons Network^™

Uncertainty-Aware Estimation, Planning, And Control For Tracking Multiple Drifting Patches In Flow Fields, Daniel O. Akanji, Krishnanand N. Kaipa, Cong Wei

Mechanical & Aerospace Engineering Faculty Publications

In this study, we present a replay-based framework for uncertainty-aware persistent tracking of multiple advected surface patches using an autonomous marine vehicle operating in spatiotemporal-varying currents. The method combines three components: local flow estimation, covariance-aware patch-boundary propagation with intermittent boundary fusion, and mission-level scheduling over multiple patches. Each patch is represented by a polygonal boundary, whose vertices are propagated through the estimated flow field while carrying per-vertex covariance, thereby quantifying uncertainty growth during advection. A flow-aware gain-scheduled linear quadratic regulator (LQR) was designed to shape the desired surge speed to take advantage of favorable currents. When the vehicle services a …

Influence Of Motion Artifacts On Instantaneous Frequency Based Heart Rate Variability Of Arterial Pulse Signals Measured By A Tactile Sensor: An Analytical Study, Mamun Hasan, Zhili Hao

Mechanical & Aerospace Engineering Faculty Publications

Objective: Heart rate variability (HRV), quantified via the instantaneous frequency (IF) of arterial pulse signals, is a key indicator of cardiovascular (CV) regulation. This study presents a theoretical and experimental investigation of how motion artifacts (MA) influence IF-and thus HRVmeasured with a tactile sensor, emphasizing underlying mechanisms rather than population-level validation. Approach: Building on a previously developed single-degree-of-freedom (SDOF) model of the tissue-contact-sensor (TCS) stack between the sensor and the artery, MA is represented as low-frequency baseline drift and time-varying system parameters (TVSP) of the TCS stack. Analytical expressions quantify the effect of MA on the IF of each harmonic …

University Of Central Florida Graduate Catalog, 2025-2026, University Of Central Florida

UCF Catalogs

No abstract provided.

Reading Comprehension And Secondary Education, Noah W. Hillman

All Electronic Theses and Dissertations

This literature review is designed to look at how reading takes place in a classroom setting and how teachers might support students as they read - primarily in secondary education (middle and high schools). Students at all levels need scaffolding and support to be successful when interacting with challenge texts. The instructional role of the teacher as it pertains to reading comprehension impacts the success of students’ skills. The literature review examines teacher practices and instructional strategies that can be used to support students’ reading comprehension at the secondary level.

Ai-Supported Socratic Questioning And Instructional Scaffolding: Effects On Student Comprehension, Reshma John

All Electronic Theses and Dissertations

This literature review examines how the intentional use of artificial intelligence (AI) designed for Socratic questioning and instructional scaffolding affects students' comprehension of course content. The literature suggests that AI is most likely to support comprehension when it prompts students to explain their reasoning, respond to guided questions, reflect on their understanding, and receive support adapted to their needs. In contrast, systems that primarily provide direct answers may encourage overreliance and mask gaps in students' understanding. Overall, the educational value of AI depends less on its availability and more on how it is designed and implemented.

Implementing Gestures Into Vocabulary Instruction To Aid Recall And Retention, Emma Dilley

Masters Theses

This study highlighted the idea of incorporating gestures into vocabulary instruction to help the students recall and retain the new vocabulary words. The researcher predicted that with the incorporation of the strategy of gestures into instruction, kindergarten students will be able to retain more vocabulary words compared to vocabulary instruction that does not include gestures. A total of 22 students and one teacher from a rural town in central Illinois participated in the study. This study was a mixed methods study, which included quantitative data in the form of pretest and posttest and qualitative data in the form of a …

Crisis Communication Guidebook For Small And Medium-Sized Food Business: From Theory To Practice, Yixin Li

Masters Theses

This creative thesis aims to develop a practical crisis communication guidebook for small and medium-sized food businesses. Compared with larger businesses that have greater human and financial resources, small and medium-sized food businesses are often more vulnerable to the influences of crises on revenue and reputation. For this reason, they have a bigger need for practical and systematic crisis guidance. This project is grounded in crisis communication theory and analyzes existing literature in order to translate academic research and theoretical knowledge into an applied guidebook.

The guidebook is organized into three sections based on the timeline of crisis development: before …

Teachers' Perceptions And Professional Uses Of Artificial Intelligence In Education, Lexie Coartney

Masters Theses

This study explores Illinois teachers’ perceptions and professional uses of artificial intelligence (AI) in education. A mixed methods approach was implemented, including a survey completed by 137 Illinois teachers and four interviews. The research questions examined teachers' perceptions of AI, their professional use of AI, and their approach to students’ use of AI. Findings concluded that participants generally hold positive perceptions of AI, especially its time-saving abilities and being supportive, while also holding concerns including reliability, accuracy, and ethical issues. Results showed that 77% (n = 106) of teachers use AI tools mostly for lesson planning, creating assessments, differentiation, …

Integrating Military-Acquired Iso Quality Management Principles Into Civilian Employment: A Phenomenological Study Of Post-9/11 Veterans, Paul Encinias

Dissertations

Purpose: This qualitative phenomenological study explored how post-9/11 U.S. military veterans describe their lived experiences of understanding and applying four ISO 9001:2015 Quality Management Principles (leadership, engagement of people, process approach, and evidence-based decision making) during the transition to civilian employment. This study further sought to understand how veterans articulated these competencies across employment stages and how those competencies were recognized within civilian organizations.

Methodology: This qualitative phenomenological study used semistructured interviews with 10 post-9/11 U.S. military veterans residing in the United States who had separated from active duty and were engaged in the transition to civilian employment. Participants were …

Walking On A Tightrope: Women And Managers Navigating Maternity Leave And Return-To-Work, Rachel R. Kalvert

Dissertations

Purpose: This qualitative phenomenological study explored how professional women experience maternity leave and return-to-work, focusing on how managerial communication shapes perceptions of career, competence, belonging, and career progression. The study involved professional women who returned to the same organization full-time from 6 months to 3 years after maternity leave.Methodology: Fourteen professional women were recruited via snowball sampling and listservs. Data were collected through Zoom interviews. Participants completed a demographic questionnaire and received interview questions in advance. The interview guide aligned with the study's three questions. After the interview, participants reviewed AI-generated transcript summaries for accuracy; and participants were given a …

Tetralogy Of Fallot With Pulmonary Atresia And Major Aortopulmonary Collateral Arteries: A Case Report, Evelia Nakapaahu

Bachelor of Science in Diagnostic Ultrasound Projects

This case study describes a six-month old female with 22q11.2 deletion (DiGeorge Syndrome) presenting with low oxygen levels, pre diagnosed of a complex congenital pathology of Tetralogy of Fallot (TOF)/Pulmonary Atresia (PA)/Major Aortopulmonary Collateral Arteries (MAPCAS) in fetal echocardiogram and is scheduled for surgical repair. The transthoracic echocardiogram showed a ventricular septal defect, aortic override, right ventricular hypertrophy, hypoplastic branch pulmonary arteries with confluence, and flow from major aortopulmonary arteries. First, the patient went into catheterization for assessment of the patient’s hemodynamics and pulmonary vessels, which results showed no hemodynamic instability or arrythmias. Weeks later, surgery was performed resulting in …

The Role Of Academic Vocabulary Instruction In Supporting Secondary English Learners' Science Proficiency, Chue Seng Her

All Electronic Theses and Dissertations

This literature review examines the extent to which academic vocabulary instruction influences secondary English learners’ (ELs’) science proficiency. Science learning requires students to interpret complex texts, engage in academic discourse, and construct evidence-based explanations using discipline-specific language, which may present challenges for ELs. This review provides an overview of research on language demands in science and instructional approaches that support vocabulary development. Findings indicate that academic vocabulary plays a critical role in students’ ability to comprehend scientific content, participate in discourse, and communicate reasoning effectively. Instructional approaches such as explicit vocabulary instruction, scaffolding, discourse-based strategies, reciprocal teaching, cognitive strategy instruction, …

Regulatory History And Judicial Review, Todd Phillips, Anthony L. Moffa

Faculty Publications

The Administrative Procedure Act requires federal agencies to simply "incorporate in the rules adopted a concise general statement of their basis and purpose" after they receive comments from the public, and the Supreme Court ruled in Overton Park that courts are to adjudicate whether rules are arbitrary and capricious based on agencies' contemporaneous rationales. Judge-created doctrines incentivize agencies to rely on these "concise" statements to elucidate their rationales, and as a result, rulemaking preambles have ballooned in size as agencies seek to insulate themselves from critical courts.

This article contends that although the APA's statutory requirement is in tension with …

Suicide Stigma In A Cross-Cultural Context: Comparison Between Mexican And Mexican American Communities., Robin E. Gearing, Micki Washburn, Kathryne Brewer, Luis R. Torres-Hostos, Pedro Isnardo De La Cruz, Miao Yu, Natalia Giraldo-Santiago, Alberto Cabrera, Adelaido Garcia Andres

School of Social Work Faculty Publications

Suicide and suicide-related stigma are serious public health issues affecting Latine communities and often serve as a barrier to help-seeking Mexicans and Mexican Americans experiencing mental health concerns. Despite this, there are still gaps in our understanding of how suicide stigma specifically impacts Latines of Mexican heritage. While Mexicans and Mexican Americans share many familial, cultural, and religious values, their exposure to different societal norms may shape distinct perceptions of suicidal ideation and mental health. To better understand suicide-related stigma in these communities, we conducted a community-based survey with 248 Mexican Americans in Houston and 203 participants in Mexico City …

The Digital In The Library: Finding The Mutually Beneficial Synergy, James M. Donovan

Law Faculty Books and Chapters

With the value of access to digital resources abundantly demonstrated during the COVID-19 lockdown, enthusiasm for the format is reaching new heights. This chapter counsels restraint, rebutting the argument that skepticism concerning the wide adoption of digital materials into the library is due merely to nostalgia by anti-technologists for a now-bygone age. Despite their obvious usefulness in certain situations, patrons have not responded well when libraries propose to discard legacy print collections in favor of transient electronic formats.To explain this rejection, this chapter argues that libraries are built upon principles of collection development and organization of materials in order to …

The Relationship Between Obsessive-Compulsive Disorder Symptoms And Reading Abilities And The Moderating Roles Of Parent-Teacher Involvement And Family Emotional Expressiveness, Tatiana Lombana Mims

University of the Pacific Theses and Dissertations

The present study focuses on how obsessive-compulsive disorder (OCD) symptoms influence reading abilities and whether parent-teacher relationships and family emotional expressiveness moderate that relationship. This study provides further knowledge on the relationship between mental health struggles and academic performance and possible risk/protective factors. Structural equation modeling through AMOS 31 was used to construct path analysis models to analyze the significance of OCD symptoms on reading abilities with parent-teacher involvement and family emotional expressiveness, both positive and negative, as moderators. The relationship between OCD symptoms and reading abilities indicated a consistent negative association though not statistically significant. Parent-teacher involvement did indicate …

Virtualized And Distributed Neighborhood Data Centers, Benjamin T. Niccum

Computer Science and Engineering Theses

This thesis evaluates whether PCIe-fabric-based resource pooling can support a decentralized neighborhood micro-data-center model under real implementation constraints. The work combines architecture design, prototype deployment, performance benchmarking, and security assessment. Results show strong prototype-scale feasibility with low-latency and high-throughput behavior, while also identifying deployment-blocking security gaps and operational maturity requirements. The thesis contributes an evidence-traceable path from concept validation to deployment-grade roadmap planning.

Systematic Approaches To Characterizing Vulnerabilities And Enhancing Robustness Of Text And Vision-Language Models, Poojitha Thota

Computer Science and Engineering Dissertations

The proliferation of artificial intelligence (AI) across critical domains, including news summarization, privacy-policy analysis, and medical decision support, has raised growing concerns about the security and robustness of these systems against adversarial manipulation. This dissertation investigates adversarial robustness in generative AI by addressing three key research goals: (1) characterizing adversarial vulnerabilities across generative models, (2) developing systematic defenses to improve the robustness of generative models, and (3) designing deployment-time safeguards for securing LLM interactions.

Towards the first goal, we characterize adversarial vulnerabilities across text-based and multimodal systems. In abstractive text summarization, we show that inference-time perturbations can exploit lead bias …

Electrochemical Sensors Development For Bacterial Detection And Surveillance: Recent Advances And Future Directions, Baljit Singh, Kamna Ravi

Research Outputs: 2025-Present

In today’s environment, rapid, reliable, and accurate bacterial detection is essential for protecting public health while preserving and ensuring the safety of food, water, and agricultural and environmental systems. Over the years, electrochemical sensors have gained widespread attention as viable candidates due to their rapid response, high sensitivity and selectivity, adaptability and portability, and low manufacturing cost. This facilitates their integration into various sectors, including healthcare and diagnostic applications, food safety and agriculture, and water and environmental monitoring. While these achievements represent tremendous progress, some of the challenges that need to be overcome include stability, batch-to-batch reproducibility, manufacturability, performance reliability, …

Soil Respiration Drivers And Challenges In A Changing Environment, Olivia Rae Haas

Theses, Dissertations and Culminating Projects

This study aims to understand post agricultural forested soils (sandy loam, silt loam, and loam) and the influences that drive carbon sequestration and soil respiration flux. Duke Farms in Hillsborough NJ, has historically been utilized as an agricultural zone for farming a variety of crops. Currently the area is protected with a focus on environmental conservation and restoration of the land. This includes getting a better understanding of the forested portions of the property. Understanding the quality of forested areas is vital as they have the potential to act as a carbon sink which can mitigate the effects of climate …

Effect Of Mid-Range Ultraviolet Light On Avian Embryonic Development, Keelie Hughes

Biology Theses

While it is a known fact that specific environmental conditions must be met to ensure proper embryonic development, the impact of changes in this delicate balance is unclear. Ultraviolet (UV) light has a narrow range of effectiveness in mature tissue, where too little can hinder molecular signaling and too much can cause damage to genetic material. This study exposed in ovo chicken embryos in the preliminary stages of development to mid-range UV radiation to examine developing embryo and tissue morphology using anthropometric methods and comparing proliferative cells among embryos exposed to varying doses of UV light. Additionally, quantitative polymerase chain …

The Rise In Height And Curb Weight Of The Top-Selling Vehicles In The United States From 1991 - 2025: Implications For Engineering Design And Vulnerable Road Users, Samuel L. Steinman-Friedman

Civil Engineering Theses

Road fatalities are higher in the United States than in other high-income regions. In 2024, 39,254 people died on roads in the United States compared to 19,940 in the European Union. These two regions have comparable exposure metrics, such as population size, roadway network length, and fatalities per mile traveled. Light trucks dominate the U.S. market, whereas hatchbacks are prevalent in Europe. The trendline of the average height and curb weight of the top-selling vehicles in the United States has increased by 0.24 inches and 23.52 pounds per year since 1991. The average 2025 top-selling U.S. passenger vehicle is 7.5 …

Information Design And Mechanism Design: An Integrated Framework, Dirk Bergemann, Tibor Heumann, Stephen Morris

Cowles Foundation Discussion Papers

We develop an integrated framework for information design and mechanism design in screening environments with quasilinear utility. Using the tools of majorization theory and quantile functions, we show that both information design and mechanism design problems reduce to maximizing linear functionals subject to majorization constraints. For mechanism design, the designer chooses allocations weakly majorized by the exogenous inventory. For information design, the designer chooses information structures that are majorized by the prior distribution. When the designer can choose both the mechanism and the information structure simultaneously, then the joint optimization problem becomes bilinear with two majorization constraints. We show that …

Extreme Points And Majorization, Andreas Kleiner, Benny Moldovanu, Philipp Strack

Cowles Foundation Discussion Papers

Many seemingly different economic problems share a common mathematical structure: they involve the maximization of a functional over sets of monotonic functions that are either majorized by, or majorize, a given function. This paper presents new, simpler proofs for the main characterization results of the extreme points of sets defined by monotonicity and majorization constraints obtained by Kleiner, Moldovanu, and Strack (2021). It demonstrates how these characterizations can be applied to a broad range of economic applications, including auction and information design, contest design, optimal delegation, optimal stopping, and decision problems under risk. The paper concludes with an overview of …

Four Feedback Tips For A Fifth Year, Annika Nielson

The Utah English Journal

Over the past four years of teaching writing, I’ve picked up a few lessons. One is that students will wait until the very last minute to submit a piece, no matter how much in-class drafting time I build into the schedule. Another is that many students see writing as big, bad, and boring: they have been trained to think that their writing will be corrected with red pens and long lists of mistakes.

The Utah English Journal, Volume 54, 2026: Full Issue

The Utah English Journal

No abstract provided.

Fda After Loper Bright, Erika Lietzan

Faculty Publications

Loper Bright, which overruled the Chevron decision from 1984, tells us that a court should determine the meaning of all statutory provisions for itself, rather than deferring to the views of the federal agencies that implement those provisions. But the overruling of Chevron may have less of an impact on the U.S. Food and Drug Administration than conventional wisdom supposes. Most challenges to FDA action do not concern its statutory interpretations. And the agency prevailed in most cases involving statutory interpretation, before the Chevron doctrine took hold. After 1984, when the doctrine did apply, the agency often lost cases at …

Tools, Mats, And Methods For Cutting Materials, Barry Goldberg

College Partner Collection

The material that has been essential to many projects is cardboard. Lightweight, sturdy, inexpensive and easy to shape, cardboard is a remarkably versatile material. It can also be seen as difficult to cut. With the right tools and cutting surface, this need not be the case.

Do-It-Yourself Reparations, Martha M. Ertman

Faculty Scholarship

The magnitude of harms like white supremacy makes it difficult to precisely identify losses, let alone remedy them. Piecemeal approaches are essential, and private efforts may be the only option when public law and cultural norms deny or perpetuate the harms. This Article addresses one racial harm, the 10:1 racial wealth gap between white and black Americans, in the context of residential segregation over the past century. It contends that the equitable doctrine of restitution enables us to recognize and remedy the unjust enrichment enjoyed by white Baby Boomers caused by private law mechanisms such as racially restrictive covenants, all …

Protecting Those Who Protect Us: A Blueprint For Mandatory Mental Wellness Standards For First Responders, Joy Hutchinson

Faculty & Staff Scholarship

First responders, including firefighters, law enforcement officers, emergency medical technicians (EMTs), dispatchers/telecommunicators, and corrections officers, serve as the backbone of public safety in the United States. Their work requires rapid decision-making, repeated exposure to traumatic events, and sustained emotional regulation in high-stakes environments (Hoell et al., 2023; Vig et al., 2020). Despite their critical roles, mental health support across these professions remains inconsistent, optional, and largely reactive rather than preventative, with many systems relying on self-referral only after crisis onset (Burke, 2021; Johnston et al., 2025).

Between 2021 and 2025, U.S.-based research has documented alarming levels of burnout, depression, anxiety, …