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Evolution Of Bed Shear Stress In Open Channel Flow Over A Rough-To-Smooth Transition, Monika Kafle

Electronic Theses and Dissertations

The study of flow over roughness transition in an open channel is very important in the field of hydraulic engineering. Bed shear stress is the key factor in predicting sediment transport and determining the stability of hydraulic structures while flow depth, flow velocity, surface roughness are some hydraulic parameters that can affect the bed shear stress in an open channel flow. In this thesis, a detailed investigation into the development of bed shear stress in a rough-to-smooth transition is performed. Experiments were conducted on flow over a rough-to-smooth transition in an open channel flume with an M2 to S2 composite …

A Many-Objective Optimization Framework: Demonstrating Capabilities Through Suspension Design, Dylan Stephens

Electronic Theses and Dissertations

No abstract provided.

Lunar Payload Logistics: Advancing Autonomous Control For Lunar Surface Transporter Vehicles, Liam Murray

Electronic Theses and Dissertations

No abstract provided.

Large Scale Crop Damage Mapping Using Optical And Sar Satellite Data Fusion And Deep Learning, Santosh Subedi

Electronic Theses and Dissertations

No abstract provided.

Mechanisms Leading To Cell Survival Through Membrane Repair In Pyroptosis, Prafulla Shrestha

Electronic Theses and Dissertations

No abstract provided.

Exploring The Role Of Clinical And Social Factors In Predicting All-Cause Mortality In End-Stage Kidney Disease Patients: A Machine Learning Framework, Addy Smith

Electronic Theses and Dissertations

No abstract provided.

Molecular Dynamics Simulations Of Key Parameters On Thermal Properties Of Carbon Nanotube Modified Epoxy Composites, Lida Najmi

Electronic Theses and Dissertations

The application of carbon nanotube (CNT)-reinforced epoxy matrix composites (CRECs) has attracted extensive attention in various industrial sectors due to the significant improvement of material properties imparted by CNTs. The thermal behavior of these nanocomposites is governed by complex heat transfer mechanisms operating at different scales, resulting in a complex relationship between the effective thermal response and the microstructural characteristics of the composite. In this study, molecular dynamics (MD) simulations were used to investigate the thermal conductivity of CRECs, focusing on the effects of key parameters such as the length and volume fraction of CNTs, the degree of cross-linking within …

Management Strategies To Improve Gastrointestinal Health And Productivity Of Native And Dairy-Derived Steers Fed In Confinement, Becca B. Grimes Francis

Electronic Theses and Dissertations

The objective of this dissertation was to evaluate strategies to mitigate metabolic disorders in confinement fed steers. The first study was conducted on yearling beef steers to investigate the effect of a rumen buffer, calcium magnesium carbonate (CMC), when fed with or without tylosin phosphate (TYL), on growth performance, rumination activity and liver abscess prevalence. Supplementation of a rumen buffer was not an effective alternative to a feed-grade antimicrobial for the control of liver abscesses in beef steers. Supplementation of CMC reduced DMI, thus negatively influencing BW and ADG. No associative effects of CMC and TYL were observed for any …

Development Of Bio-Based Coating Materials For Environmentally Friendly Controlled-Release Nitrogen Fertilizer Applications, Anne Carolyne Mendonca Cidreira

Electronic Theses and Dissertations

No abstract provided.

Discovery Of Photosynthetic Oxic N2-Fixation In Cyanobacteria Using Wet Lab And Machine Learning Approaches, James A. Young Iii

Electronic Theses and Dissertations

No abstract provided.

Impact Of Natural Feed Additives And Monensin Sodium On Growth Performance In Feedlot Cattle, Thiago Lauro Maia Ribeiro

Electronic Theses and Dissertations

The objective of this dissertation was to investigate how phytogenic feed additives and a pulse feeding monensin sodium strategy would affect growth performance in the receiving and finishing feedlot phases. Three randomized complete block design feedlot experiments and one pooled analysis were conducted to determine the effects of the feed additives and management strategies used in newly weaned and finishing beef cattle. The objective of these experiments were 1) determine if a blend of capsicum oleoresin, clove essential oil, and garlic essential oil (CCG) influences cattle performance, sera metabolites or health outcomes during the feedlot receiving phase; 2) determine if …

In The Footsteps Of Moose: Using Non-Invasive Techniques To Identify Cause-Specific Calf Mortalities And Evaluate Moose (Alces Alces) Movements Pertaining To Mineral Lick Locations On Ancestral Lands Of The Grand Portage Ojibwe, Anna B. Weesies

Electronic Theses and Dissertations

Following a sharp moose (Alces alces; mooz, Anishinaabemowin, Ojibwe language) population decline in northeastern Minnesota during the early 2000s, the Grand Portage Band of Lake Superior Chippewa initiated a long-term moose collaring effort to assess survival and mortality causes. Moose are a culturally important species to the Band, with annual subsistence hunts held on the Reservation and adjacent 1854 Ceded Territory. Continued research guides culturally appropriate management decisions aimed at bolstering calf and adult survival, helping to preserve this moose in Minnesota today and for subsequent generations. Chapter 1 identifies cause-specific calf mortality rates in this multi-predator system using minimally …

Computation-Efficient Deep Learning Models For Computer Vision And Multimodal Vision-Language Tasks Via Network Pruning, Abir Mohammad Hadi

Electronic Theses and Dissertations

With the rapid evolution of deep neural networks over the past decade, the demand for efficient, generalizable, and task-adaptable models, especially in computer vision, has increased significantly. To address the computational and deployment challenges posed by overparameterized models, the research community has extensively explored model compression techniques such as pruning, quantization, and distillation. These approaches aim to enhance model efficiency without compromising performance, particularly when adapting to domain-specific tasks under limited resources. This dissertation investigates several underexplored yet critical aspects of task-aware deep learning model compression, spanning both convolutional and vision-language architectures. In the early part of this work, we …

Slum Area Detection In Dhaka City, Bangladesh, Using Satellite Remote Sensing And Deep Learning, Soubhoon Sadeq Shinjini

Electronic Theses and Dissertations

Dhaka City, a rapidly growing megacity and high-density developing area in Bangladesh, faces numerous urbanization challenges. Among these, informal settlements or slum areas pose serious concerns for authorities and policymakers striving to improve living conditions for slum dwellers. Dhaka City’s slums are characterized by high-density, one- or two-story structures made of low-cost materials, often located adjacent to natural water bodies and lacking basic public infrastructure (Ahmed 2014; Iqbal 2014; Jahan 2012). The need for accurate and up-to-date data on these settlements is crucial for researchers and policymakers, particularly for implementing slum upgradation and resettlement programs. However, traditional field surveys for …

Characterizing A Free-Roaming Cat Population To Predict Predation Of Threatened Species In An Island Ecosystem, Sarah Gheida

Electronic Theses and Dissertations

No abstract provided.

An Integrated Wetland Condition Index And Environmental Metric Framework For The Prairie Pothole Region, Mercedes L. Batalla

Electronic Theses and Dissertations

The USDA-NRCS Agricultural Conservation Easement Program (ACEP) assists landowners with protecting, restoring, and enhancing wetlands. Evaluating wetland conservation efforts is crucial for informing future management decisions. However, assessment frameworks vary across regions and among stakeholders. The Prairie Pothole Region is an ecologically unique landscape characterized by its abundance of wetlands that provide important ecosystem services. To evaluate wetlands enrolled in ACEP, I sampled forty-five semi-permanent wetlands in the Prairie Pothole Region from July – August 2023 and 2024. I selected and sampled twenty-six wetlands enrolled in ACEP. Nineteen additional wetlands not enrolled in ACEP were also sampled; these included nine …

The Formation And Degradation Of Carboxysomes During Heterocyst Development In Filamentous Cyanobacteria, Maxwell Anton Jakubiak

Electronic Theses and Dissertations

Photosynthetic carbon (CO2) fixation and solar-powered nitrogen (N2) fixation are foundational biochemical processes that introduce essential elements into the biosphere. While atmospheric dinitrogen gas (N2) is unusable to most organisms, diazotrophs utilize the nitrogenase enzyme to reduce N2 to ammonia. Because all known nitrogenases are highly susceptible to irreversible oxygen inactivation, N2 fixation is generally incompatible with oxygenic photosynthesis. However, several cyanobacteria are both photosynthetic and diazotrophic, balancing these opposing metabolisms by temporally or spatially separating the respective enzymes. Anabaena sp. PCC 7120 is a model multicellular cyanobacterium that grows in filaments of photosynthetic vegetative cells, which respond to nitrogen …

Simulating Positive Ion Distribution In The Protodune Single Phase Detector, Vishnu Pfeiffer

Electronic Theses and Dissertations

This work covers the validation and implementation of a model to solve for argon ion (Ar+) distribution in the ProtoDUNE-SP liquid argon time projection chamber (LArTPC). ProtoDUNE-SP undergoes a constant flux of cosmic ray muons due to surface operation. The performance of the ProtoDUNE-SP provided valuable insights into single-phase technology, membrane cryostat technology, and calibration of cryogenic instrumentation. Still, challenges in achieving precise measurements persist due to the space charge effect—the distortion of the electric field within the detector due to the accumulation of positive argon ions generated from constant cosmic muon flux. The overarching goal of this thesis is …

Effects Of Peel Angle And Strain Rate On The Bond Between Frcm Composite And Concrete Substrate, Lucas Robert Gervais

Electronic Theses and Dissertations

Fiber-reinforced cementitious matrix (FRCM) composites have gained increasing attention for the rehabilitation and strengthening of concrete and masonry structures due to their favorable mechanical properties, compatibility with existing substrates, and ease of application. The effectiveness of any strengthening procedure depends on the quality of the bond between the external reinforcement and the substrate, ensuring efficient stress transfer and enabling the system to reach its ultimate capacity without premature debonding. While research has focused on the bond performance of FRCM systems under pure shear loading and quasi-static, low strain rate conditions, the effects of mixed-mode loading and high strain rates representative …

Decision-Making Supports And Cognitive Decline, Rebekah Diller

Articles

For persons with a range of cognitive disabilities, supported decision-making, rooted in a human rights approach to disability, has emerged as a tool that permits them to make legally binding decisions and avoid guardianship. As supported decision-making policy has evolved in the United States, state statutes have primarily focused on formal agreements through which individuals can designate trusted supporters to assist in obtaining information, processing that information, and communicating a decision. This Article argues that supported decision-making has promise for preserving the autonomy of persons living with dementia, but that the model of a supported decisionmaking agreement embodied in the …

Decentering Property In Fourth Amendment Law, Michael C. Pollack, Matthew Tokson

Articles

For the past several decades, privacy has been the primary conceptual foundation for Fourth Amendment search law. The canonical test for Fourth Amendment searches accordingly looks to whether the government has violated a person’s reasonable expectation of privacy. Yet privacy is no longer the sole determinant of Fourth Amendment protection, as the Supreme Court has recently added a property-based test to address cases involving physical intrusions on land or chattel. Further, given the ambiguity of the reasonable expectation of privacy test, a variety of influential judges and scholars have proposed relying primarily, or even exclusively, on property in determining the …

An Alternate History Of Chevron, With A Lesson For Today, Michael E. Herz

Articles

It is a banal truism that judicial deference to agency decisionmaking enables the executive branch to pursue its agenda, whatever that agenda may be. That was obvious to all in the early years of the Chevron decision, which was greeted enthusiastically on the right and skeptically on the left. In Chevron itself, and for a while thereafter, deference advanced the Reagan deregulatory program. Over the years, a subtler conclusion gained consensus: overall and in the long haul, judicial deference is likely to have a net pro-regulatory impact. Hence the right’s hardened opposition to Chevron leading up to its demise. But …

Leadership And Management In Action Program (L-Map) Supplement: Case Studies For Humanities And Social Sciences, Giovanna Bonadonna Ph.D., Kevin Kadowaki Ph.D., A. Patricia Mendoza Ph.D., Matthew Thompson Ph.D., Shirl Yang Ph.D.

Office of Postdoctoral Affairs

The Leadership and Management in Action Program (L-MAP) Workbook and Facilitator Guide are authored by Erin Heckler, Ph.D., Jessica A. Hutchins, Ph.D., Molly Grisham, M.A., and Elizabeth Luckman, Ph.D., M.B.A. The L-MAP Project was supported by a Burroughs Wellcome Fund (BWF) Career Guidance for Trainees grant to Washington University in St. Louis, 2019-2021 (co-principal investigators: Erin Heckler, Ph.D., and Jessica Hutchins, Ph.D.).

This Supplement does not (nor does it intend to) replace the L-MAP curriculum. The case studies in this document are designed to accompany the theory in the L-MAP curriculum applying it to discipline-specific situations in the humanities and …

Perspectives Of Corporate Instructional Design Experts On Effectiveness, Personal Traits And Attributes, And Technology, Thomas A. Gant

Theses and Dissertations

This qualitative phenomenological descriptive study explored corporate instructional design experts' perspectives on effectiveness, personal traits and attributes, and technology that enhance their expertise. Three central themes emerged: "Mastering Instructional Design: The Journey of Continuous Learning and Skill Development," highlighting the importance of mentorship, lifelong learning, and professional development; "Accessing Instructional Design Expertise Through Individual Strengths," emphasizing adaptability, problem-solving, and empathy; and "Navigating Technological Integration and Innovation in Instructional Design," showcasing the transformative role of tools such as virtual reality, learning management systems, and authoring software. Semi-structured interviews conducted via Zoom with 10 corporate instructional designers with at least 10 years …

La Enseñanza Del Arte A Estudiantes Con Trastorno De Déficit De Atención: Una Aproximación Fenomenológica Desde La Perspectiva Docente, María Torres Guzmán

Theses and Dissertations

Esta disertación aplicada se diseñó con el propósito de explorar, describir y entender las experiencias fenomenológicas de los docentes en la enseñanza del arte a estudiantes diagnosticados con Trastornos de Déficit de Atención (TDAH). Se documentaron las vivencias, se explicaron las experiencias y se describieron los problemas que enfrentan los docentes en su proceso de enseñanza a los estudiantes con TDAH. El marco teórico empleado fue la Teoría de las Inteligencias Múltiples de Howard Gardner, que plantea la existencia de ocho inteligencias que son la musical, la corporal cinestésica, lingüística, lógico-matemática, espacial, interpersonal, intrapersonal y naturalista.

Esta investigación tuvo un …

Beyond The Brochure: Exploring The Reality Of Belonging In South Florida Private Schools, Jennifer Vigille

Theses and Dissertations

This applied dissertation was designed to explore Black parents’ perceptions of teachers and leadership in predominantly White private schools. The research drew on a rich body of literature on race, education, and social dynamics in diverse school settings. The study addressed the ongoing challenges Black families faced in navigating these environments, particularly in terms of communication and cultural competence. The central research questions investigated how Black parents experienced and interpreted teacher and leadership relationships and support in predominately White private schools.

The study hypothesized that Black parents perceived significant gaps in communication and cultural competence among educators and leaders, affecting …

Law Enforcement And The Need For Mental Health Collaboration, Jacquline Gillins-Hatcher

Theses and Dissertations

This study examined the ongoing challenges and the necessity of enhanced collaboration between law enforcement agencies and mental health professionals in responding to mental health crises in the United States. Using a constructivist grounded theory approach, qualitative data were collected through semistructured interviews with law enforcement officers and mental health professionals, along with an analysis of existing records and policies.

Findings highlighted that crisis intervention team training improved officers’ ability to manage crisis situations. However, barriers such as limited interagency coordination, funding constraints, leadership challenges, and systemic policy gaps continued to hinder effective collaboration. Data from this research indicated that …

Factors Contributing To Teacher Attrition From The Perspectives Of Teachers Who Left The Profession, Malik Padgett

Theses and Dissertations

This applied dissertation examined teacher attrition, a persistent challenge in K–12 education. Nearly 20% of teachers leave by their third year, with up to 50% departing by the fifth year. High turnover disrupts learning, strains resources, and diminishes educational quality, particularly in under-resourced communities. Addressing these issues is crucial for improving retention and fostering stability.

The study explored key factors driving attrition, including inadequate compensation, excessive workload, insufficient professional development, and limited administrative support, especially in the post-COVID era. Grounded in transformational leadership theory, the research highlighted the role of leadership in fostering morale and ethics rather than merely transactional …

Lived Experience Of Middle School Science Teachers During The Covid-19 Pandemic, David E. Abbott Jr.

Theses and Dissertations

The COVID-19 pandemic significantly disrupted education worldwide, compelling schools to adopt remote teaching and learning. This phenomenological study examined the lived experiences of six middle school science teachers in an Alabama school district during this period. Data were collected through interviews and reflective journals maintained for 2 weeks following the interview. The research investigated how teachers navigated shifting instruction to remote settings, engaged students, assessed and monitored their progress, and managed challenges. Guided by the technological pedagogical and content knowledge (TPACK) framework, findings revealed that teachers leveraged a combination of technological, pedagogical, and content knowledge to adapt their instruction. Despite …

Investigating The Impact Of Student Motivation And Self-Efficacy On Academic Performance In Advanced Placement Courses, Alicia Carroll

Theses and Dissertations

This mixed methods applied dissertation was designed to provide insight into the effects of student motivation and student self-efficacy on academic performance in Advanced Placement (AP) courses. Secondary educational institutions in the United States offer their students Advanced Placement courses, dual enrollment or dual credit courses, International Baccalaureate (IB) courses, and early college programs to encourage and promote the quest for outstanding student attainment. Although many students in the study school enroll in the Academy for Advanced Placement Studies, not all ninth through 12th graders achieve Advanced Placement credit in the Academy’s required courses.

Education has traditionally been viewed as …