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An Exploration Of Geomagnetically Induced Currents And The Accessibility Of Geomagnetic Data Collection, Richard Le

Physics Theses

Geomagnetically Induced Currents (GICs) are electrical currents induced in long grounded conductors during geomagnetic disturbances. They represent one of the primary space weather hazards to critical infrastructure, particularly high-voltage power transmission systems and other grounded conductor networks such as pipelines. As modern society becomes more dependent on these systems, understanding and mitigating the impacts of space weather has become increasingly important. This thesis examines the physical mechanisms that generate GICs, from the interaction of the solar wind with Earth’s Magnetosphere to Magnetosphere-Ionosphere-Thermosphere (MIT) coupling and the current systems that drive geomagnetic disturbances (GMDs). Case studies from Zimbabwe and Finland illustrate …

Computational Study Of Rotating Detonation Combustors, Aditya Balasubramaniam

Mechanical and Aerospace Engineering Theses

Rotating detonation combustors (RDCs) are pressure-gain combustion devices that sustain one or more continuously rotating detonation waves, offering potential thermodynamic and performance advantages over conventional deflagration-based systems. Their behavior depends strongly on combustor geometry and operating conditions. Understanding these effects is therefore essential for the design and optimization of practical RDCs. Accordingly, this thesis numerically investigates annular RDCs with two primary objectives: (1) to evaluate the effects of propellant mass flux and (2) to assess the influence of annular width on detonation-wave dynamics and combustor performance.

A finite-volume framework is used to solve the compressible reactive Euler equations with hydrogen–air …

Scalable Quantum Network Routing Through Reinforcement Learning And Resource Optimization, Tasdiqul Islam

Computer Science and Engineering Dissertations

Long-distance quantum communication depends on distributing high-delity entanglement across quantum repeaters. Entangled states are fragile: they decohere in memory, are consumed when used, and lose delity after each swap. Quantum routing therefore diers from classical routing: an algorithm must decide not only the path, but when to generate, store, swap, and consume entanglement before they lose their usefulness. This dissertation studies scalable resource allocation and routing for quantum networks under delity, memory, and concurrency constraints. It rst addresses re- peater deployment with heuristics that nd near-optimal locations while cutting com- putation from days to seconds versus integer linear programming (ILP). …

Early Detection And Objective Assessment Of Neonatal Hypoxic-Ischemic Encephalopathy Severity, Soheila Norasteh

Bioengineering Dissertations

Hypoxic–ischemic encephalopathy (HIE) is a neonatal brain injury caused by reduced oxygen and blood flow to the brain around the time of birth. It remains a major cause of neonatal mortality and long-term neurodevelopmental impairment worldwide. Therapeutic hypothermia is the standard treatment for moderate-to severe HIE and improves outcomes when initiated within the first six hours of life. Therefore, accurate assessment of injury severity during this period is essential. Cur rently, HIE severity is determined primarily through neurological examination and classified as mild, moderate, or severe. However, these examinations are subjective, cannot provide continuous monitoring of brain function, and may …

Reliable And Label-Efficient Learning For Open-World Visual Perception And Robot Learning Under Uncertainty, Zongyao Lyu

Computer Science and Engineering Dissertations

Modern learning systems deployed in open-world environments must make reliable decisions despite predictive uncertainty, previously unseen classes, limited annotations, and distribution shifts. This dissertation develops methods for reliable and label-efficient learning in visual perception and robot control.

First, this work studies uncertainty in object detection by representing semantic and spatial predictions probabilistically. A deep-ensemble framework aggregates detections into class-probability distributions and probabilistic bounding boxes, while a subsequent extension combines deep ensembles with Monte Carlo dropout to further investigate predictive uncertainty. Second, this dissertation addresses open-set recognition, where classes absent during training may appear at inference time. An empirical study shows …

Engaging Elementary Music Students Through Multisensory Teaching In A Kodály-Inspired Classroom, Chelsea Taylor

Graduate Theses/Dissertations

Multisensory teaching is an instructional approach that is increasingly implemented in general education classrooms. Although it has been widely studied in special education settings and in the teaching of reading skills, it has not been extensively examined within music education. The purpose of this study was to examine the impact of multisensory instruction on student engagement, comprehension, and retention of concepts in my elementary music classroom. Through Kodály-inspired lessons that challenged students to audiate pitches while kinesthetically building a pentatonic scale, notate music on textured surfaces, and play games that incorporated simultaneous sensory input, these lessons intentionally integrated visual, auditory, …

Advancing Hate Speech Detection: Binary And Multiclass Approaches From Traditional Methods To Parameter-Efficient And Ontology-Guided Language Models, Mahmoud Abusaqer

Graduate Theses/Dissertations

The widespread proliferation of hate speech on social media platforms poses significant challenges for content moderation and user safety, requiring automated systems that are simultaneously accurate, efficient, and capable of fine-grained distinctions. This thesis investigates hate speech detection through five published manuscripts organized into two complementary threads: binary detection (hateful vs. non-hateful) and multiclass detection across demographic targeting categories. The binary thread progresses from a broad 38-model baseline spanning traditional machine learning, deep learning, and transformer architectures (where RoBERTa reaches 91.48% accuracy and CatBoost remains competitive at 88.60%) to parameter-efficient adaptation, in which Low-Rank Adaptation (LoRA) of large language models …

Governance By Numbers And The Architecture Of Anxiety A Human-Capital Efficiency Analysis In Global Higher Education, Sukanya Kemp

Graduate Student Theses, Dissertations, & Professional Papers

There has been a movement of global university rankings from the margins to the center of higher education governance. These metrics are now treated as external performance indicators in institutional strategy formation. In this dissertation an Architecture of Anxiety created by these rankings was explored, specifically examining how ranking volatility functions as a signal of environmental uncertainty and resource risk. To bypass the Transparency Barrier inherent in global financial data, given the effects of internal political considerations on data reporting, a human-capital-centered approach was adopted. By utilizing academic staff full-time equivalents (FTE) as the primary analytical input, universities were reframed …

Dual Regulation Of Osteogenesis And Inflammation By Pomegranate (Punica Granatum L.) Extract In Periodontal Ligament-Derived Stem Cells: Implications For Regenerative Medicine, Mai Hafez

Dentistry

Objectives

This article aims to compare the osteogenic along with anti-inflammatory activity of different concentrations of pomegranate extract (PG) on human periodontal ligament-derived stem cells (hPDLSCs) in vitro.

Materials and Methods

hPDLSCs were acquired from the root surface of removed molars, cultured, and then distinguished by flow cytometry analysis and several lineage differentiation potentials. To identify the effect of PG on hPDLSCs' viability, an MTT assay was performed. hPDLSCs were maintained in osteogenic induction medium with varying concentrations of PG. At the end of the induction period, osteogenesis was assessed using Alizarin Red staining, ALP assay, and qRT-PCR to determine …

Cytocompatibility, Osteogenic Potential, Antibacterial And Antibiofilm Efficacy Of A Calcium-Silicate-Based Intracanal Medication, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

This study assessed the biological and antimicrobial properties of a calcium silicate-based material and calcium hydroxide (CH) when used as intracanal medications. MTT assay, osteogenic differentiation of human periodontal stem cells (hPDLSCs), cell mineralization-assay, and determination of ALP activity were assessed to investigate the biological properties. While the agar well diffusion, crystal violet (CRV) assay and LIVE/DEAD staining of dentin slices infected with a mature E. faecalis biofilm were used to assess the antimicrobial properties. Normally distributed data were analyzed using one and two-way ANOVA and post hoc Tukey test, while for non-normally distributed data Kruskal Wallis and Dunn's tests …

Automatic Teeth Segmentation In Panoramic Radiographs Using Attention U-Net, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

Aim: The aim of this study is to investigate the effectiveness of the Attention U-Net architecture for teeth segmentation in panoramic dental images. By exploring the potential of Attention U-Net, the study aims to contribute to the development of more precise and automated dental imaging analysis, which could enhance diagnosis, treatment planning, and computer-aided dental systems. Subjects and methods: The TUFTS University dataset consisting of 1000 de-identified panoramic radiographs was used for training and testing an Attention U-Net architecture with 10-fold cross-validation. These scores surpass those of all other networks implemented on the same dataset. using a newly available benchmark …

Enhancing Severely Compromised Premolar Strength: Role Of Cusp Reduction Design In Cad/Cam Composite Restorations, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

The objective of this study was to assess the effect of different designs and depths of cusp reduction on fracture resistance of maxillary permanent premolars restored with CAD/CAM composite restorations. A total of 42 sound maxillary premolars were used. Standardized MOD cavities were prepared in all specimens. Teeth were randomly divided according to form of cusp reduction into three main groups (n = 14); G1:MOD cavities restored with inlays with no cusp reduction, G2:MOD cavities restored with overlays with buccal and palatal anatomical cusps reduction, G3; MOD cavities restored with overlays with buccal and palatal flat cusps reduction. Groups 2 …

Effect Of Caries Removal Techniques On Micro-Tensile Bond Strength Of Cad/Cam Composite Blocks To Dentine (In-Vitro Study), Hend Sayed Ahmed, Mohamed Fouad Haridy, Hoda Fouda, Basma Khalifa, Youssef M. Haridy

Dentistry

No abstract provided.

Clinical Evaluation Of The Remineralizing Potential Of Biomimetic Scaffolds On Enamel White Spot Lesions: A 12-Month Randomized Controlled Trial, Eman Soliman, Wegdan Abdelfattah, Doaa Ragai M Ahmed, Dina Nagui, Ahmed Holiel

Dentistry

No abstract provided.

The Effects Of Cigarette Smoke And Heated-Tobacco Aerosol On Streptococcus Mutans Adhesion And Surface Topography Of Dental Hard Tissues In Vitro, Mahmoud Bakr, Mohamed Shamel, Mahmoud Al Ankily

Dentistry

No abstract provided.

The Effects Of Cigarette Smoke And Heated-Tobacco Aerosol On Streptococcus Mutans Adhesion And Surface Topography Of Dental Hard Tissues In Vitro, Mohamed Shamel, Mahmoud Al Ankily, Nourhan Taha

Dentistry

No abstract provided.

The Limits Of Economic Sanctions: Why Western Efforts Did Not Fully Economically Isolate Russia After 2022 Invasion Of Ukraine, Jonibek Oblokulov

Dissertations and Theses

No abstract provided.

Immigration And Nationality Law: Problems And Strategies | Third Edition (2026), Lenni Benson, Stepehn Yale-Loehr, Shoba Sivaprasad Wadhia

Books

The third edition of Immigration and Nationality Law: Problems and Strategies has been updated significantly to capture changing immigration law and policy. The text's overall size has been reduced, but it continues to have in-depth coverage, from expedited removal to constitutional analysis, from nonimmigrant visas to humanitarian relief.

This book uses the "problem method," allowing the reader to focus on a series of problems and to apply statutory, administrative, and case law materials. Ethical considerations are woven throughout the text as is the opportunity to consider policy implications. This book is designed for both law students and attorneys, covering statutory …

Examples & Explanations For Secured Transactions, Eighth Edition, Stephen M. Mcjohn, James Brook

Books

A favorite classroom prep tool of successful students that is often recommended by professors, the Examples & Explanations (E&E) series provides an alternative perspective to help you understand your casebook and in-class lectures. Each E&E offers hypothetical questions complemented by detailed explanations that allow you to test your knowledge of the topics in your courses and compare your own analysis.

New to the Eighth Edition: 

• Discussion of the new Article 12 of the UCC
• Coverage on the special priority for creditors who control the collateral over creditors who just file, especially for digital assets 
• New chapter on how the 2022–2023 …

The Use Of State Discipline To Sanction Attorneys General And Other High-Ranking Legal Officers, Leslie C. Levin

Faculty Articles and Papers

The United States Attorney  General, state attorneys general, and high-ranking officials in their offices, like all lawyers, are subject to rules of professional conduct.  Increasingly,  when they  push the  boundaries of  these  rules and other well-established  professional  norms,  individuals  and  organizations  are  filing state  lawyer  disciplinary  grievances  against  them.  While  some  see  troubling conduct  by  these  high-ranking  legal  officers,  others  view  these  disciplinary grievances  as  politically  motivated.  State  lawyer  disciplinary  authorities  often try to avoid addressing these grievances. This article  examines  why it is nonetheless  important  for  state  lawyer  disciplinary  authorities—which  are  arms  of state courts—to act on certain grievances. …

Portrait Des Services De Soutien Aux Synthèses De Connaissances (Sdc) Dans Les Universités, Les Hôpitaux Et Les Milieux Spécialisés Québécois, Monique Clar, Benedicte Nauche, Daniela Ziegler

Résumés de conférences

No abstract provided.

Améliorer La Découvrabilité De La Littérature Grise En Français D'Un Dépôt Institutionnel : Le Cas Pharesst, Catherine Dufresne, Samuel Hébert, Benedicte Nauche

Résumés de conférences

No abstract provided.

More Than Just Multiculturally Competent: Doctoral Student Competency And Preparedness To Work With Individuals With Disabilities, Kristen N. Dickens, Chantrelle Varnado-Johnson, Synthia Best

Georgia Educational Researcher

Phenomenological inquiry was used to interview counselor education doctoral students about their experiences and perceived competency and preparedness to counsel individuals with disabilities. Three overarching themes emerged: (1) continuous self-directed learning, (2) disability is multifaceted, misunderstood, and evolving, and (3) influential learning factors. Implications and recommendations for counselor educators and training programs are provided.

Examining The Multilevel Effects Of Instructional Leadership On Teachers’ Professional Commitment And Classroom Management, Nuruddin Ahmed Masud, San Su Su San, Kim Ki Bong, Mst Taherun Nesa Subarna

Georgia Educational Researcher

This study examined the multilevel effects of instructional leadership on teachers’ professional commitment and classroom management in secondary schools. Using a multilevel modeling (MLM) approach, data were collected from 250 teachers nested within 8 schools. The analysis assessed the influence of both school-level instructional leadership and teachers’ perceptions of leadership on professional commitment and classroom management outcomes.

Results indicated that instructional leadership at both levels significantly predicted teachers’ professional commitment (teacher-level: β = .32, p < .001; school-level: β = .45, p < .001). Similarly, instructional leadership demonstrated significant positive effects on classroom management (teacher-level: β = .28, p < .001; school-level: β = .41, p < .001). Furthermore, teacher professional commitment was positively associated with classroom management (β = .36, p < .001) and moderated the relationship between instructional leadership and classroom management, such that the effect was stronger under higher levels of leadership support.

These findings highlight the importance of instructional leadership in shaping teacher-related outcomes across organizational levels. The study contributes to the literature by providing empirical evidence …

Constraining The Tectono-Climatic Evolution Of The Northern Rocky Mountains: Insights From Volcanic Glass, Leaf Water, And Leaf Wax Hydrogen Isotopes, Rijumon Nandy

Earth & Environmental Sciences Dissertations

The Eocene-Oligocene period in the North American Cordillera represents a period of great intrigue with complex interactions among tectonics, climate, and surface processes. Although this period is generally associated with synorogenic extension associated with gravitational collapse of the Cordillera, the paleotopographic history remains debated. Existing studies offer conflicting interpretations, suggesting either sustained elevations or modest uplift during this time. Notably, recent reconstructions based on volcanic glass δD values have proposed renewed uplift during the early Oligocene, which needs to be tested with a more extensive and robust dataset. Concurrently, global cooling and aridification during this interval may have been amplified …

Considerations For The Analysis Of Urinary Environmental Chemical Concentrations During Pregnancy, Danielle R. Stevens, Kaleigh Hinton, Katie M. O'Brien, Jessie P. Buckley, Barrett M. Welch, Jason A. Watts, Antonia M. Calafat, Julianne C. Botelho, Elena Sinkovskaya, Ann Przybylska, George Saade, Alfred Abuhamad, Kelly K. Ferguson

Department of Obstetrics & Gynecology Faculty Publications

Background:

Pregnancy physiology may impact indicators of hydration, affecting exposure assessment in gestational studies with urinary chemical biomarkers.

Methods:

We aimed to characterize hydration and demonstrate the impact of different methods for standardizing urinary chemical biomarker concentrations on exposure descriptives in the Human Placenta and Phthalates Study (n = 303, 2017-2020), a prospective pregnancy cohort with eight study visits between 12 and 38 weeks of gestation. We assessed trajectories and predictors of hydration using urine flow rate (UFR) and specific gravity (SG). Likewise, we examined trajectories and predictors of mono-n-butyl phthalate (MBP), for which concentrations were unstandardized or standardized via …

The Critical Role Of Near-Surface Dynamics In Identifying Spawning Areas Of Atlantic Bluefin Tuna In The Gulf Of Mexico, Donald R. Johnson, William J. Teague, Harriet Perry, James S. Franks

Gulf and Caribbean Research

Atlantic Bluefin Tuna, Thunnus thynnus (ABFT), migrate long distances to broadcast spawn in the Gulf of Mexico (GOM) basin, the Mediterranean Sea and the Slope Sea (NW Atlantic). These areas have commonalities including a highly dynamic upper ocean eddy environment that draws nutrients from shallow thermoclines and adjacent continental shelves and can provide temporal sanctuaries from some larval predators. In the GOM basin, the Loop Current (LC) and its energetic spin—off eddies sweep weak swimming predators such as jellyfish (Pelagia noctiluca) into lines and aggregations, leaving relatively open areas as temporal sanctuaries for ABFT larvae during the vulnerable …

Oyster Drill (Stramonita Haemastoma Complex) Habitat Preferences In A Shallow Coastal Estuary, Coen Mcgarrah, Cynthia Lupton, Eric Sparks, Jennifer L. Debose

Gulf and Caribbean Research

Southern oyster drill snails (Stramonita haemastoma complex) are nuisance organisms within the Gulf of Mexico. This is due to their damaging impact on recovering and farmed oyster (Crassostrea virginica) populations, which are one of the drills’ main food sources. Oyster reef recovery and increased aquaculture production are priorities for Mississippi and the wider northern Gulf coast. The Grand Bay National Estuarine Research Reserve (NERR) hosts multiple oyster reef restoration sites within its boundaries, yet no comprehensive survey of oyster drill abundance has been conducted in this area to date. Additionally, knowledge of oyster drill preferences for sediment …

Relationships Between The Abundance Of Benthic Organisms And Near-Bottom Food Availability In Mesophotic Coral Habitats Off The Coast Of The Southern Usa, Megan C. Laufer, Kyler M. Sloan-Verkler, Joseph R. Pawlik

Gulf and Caribbean Research

Hard bottom coral habitats in the mesophotic zone are ecologically and economically important systems, yet questions remain about the relative abundances of benthic organisms and trophic resources available to them. As part of the Deepwater Horizon Natural Resource Damage Assessment Mesophotic and Deep Benthic Communities Habitat Assessment and Evaluation project, downward—facing imagery along ROV transects was used to estimate percentage cover of major benthic organism groups across the Mississippi—Alabama continental shelf (MS—AL shelf, 6 dives) and at 2 sites within the Flower Garden Banks National Marine Sanctuary on the Texas—Louisiana continental shelf (TX—LA shelf). Benthic cover was analyzed relative to …

First Photo-Identification Resighting Of A Male Sperm Whale (Physeter Macrocephalus) Between Guadeloupe, Lesser Antilles And Andøya, Northern Norway, Rocío Prieto González, Lisa Steiner, Zoë Morange, Tiu Similä, Marten Brill, Cédric Millon, Laurent Bouveret

Gulf and Caribbean Research

No abstract provided.