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Efficient Data Structures For Text Processing Applications, Paniz Abedin
Efficient Data Structures For Text Processing Applications, Paniz Abedin
Electronic Theses and Dissertations, 2020-
This thesis is devoted to designing and analyzing efficient text indexing data structures and associated algorithms for processing text data. The general problem is to preprocess a given text or a collection of texts into a space-efficient index to quickly answer various queries on this data. Basic queries such as counting/reporting a given pattern's occurrences as substrings of the original text are useful in modeling critical bioinformatics applications. This line of research has witnessed many breakthroughs, such as the suffix trees, suffix arrays, FM-index, etc. In this work, we revisit the following problems: 1. The Heaviest Induced Ancestors problem 2. …
Tailoring Of The Left Ventricular Assist Device Cannula Implantation Using Coupled Multi-Scale Multi-Objective Patient Specific Optimization., Abubakar Dankano
Tailoring Of The Left Ventricular Assist Device Cannula Implantation Using Coupled Multi-Scale Multi-Objective Patient Specific Optimization., Abubakar Dankano
Electronic Theses and Dissertations, 2020-
Despite advancements in device design and anti-coagulation treatments, there are numerous adverse events that may occur following implantation of LVADs. The most devastating involves the embolization of thrombus into the brain causing a stroke, with incidence of up to 14-47% over a 6–12-month period. This study aims to elucidate ways to reduce this risk by surgical maneuvers guided by a multi-scale computational fluid dynamics analysis wrapped around a multi-objective shape optimization scheme which optimizes the anastomosis location of the VAD outflow graft (OG) along the ascending aorta to minimize the incidence of thrombi reaching the cerebral vessels and reduce particle …
Using A Data Based Coaching Model To Support Novice Teachers In Inclusive Classrooms, Timara Davis
Using A Data Based Coaching Model To Support Novice Teachers In Inclusive Classrooms, Timara Davis
Electronic Theses and Dissertations, 2020-
The inclusion of students with disabilities in the general education classroom has changed over time. Teachers in inclusive classrooms need the skills to teach all students, including students with disabilities. The National Center for Learning Disabilities (NCLD; 2019) reported in a survey of over 1500 general education teachers, only 17% noted they were well prepared to teach students with disabilities. A gap of in content knowledge exists between general and special education teacher preparation (Fonte et al., 2017) and the outcomes of students depends on the knowledge of the teacher (Burroughs et al, 2019). Lack of preparation of general education …
Investigation Into Wedge Turbulator Effects In High Aspect Ratio Cooling Channels, Daniel Garcia
Investigation Into Wedge Turbulator Effects In High Aspect Ratio Cooling Channels, Daniel Garcia
Electronic Theses and Dissertations, 2020-
With reusability being a novel design parameter for liquid rocket engines (LRE), the need to lower internal wall temperatures for an increased engine longevity is a desired outcome. One of the mechanisms that has been effectively implemented is the use of high aspect ratio cooling channels (HARCC) to promote fin-like effects from internal cooling channel sidewalls. In the gas turbine industry, the use of wedge turbulators has gained recognition for its heat augmentation properties with relatively low pressure drop penalty. In an ideal case, LRE's could adopt the wedge turbulator cooling technique to enhance the benefits of HARCC with minimal …
Spectral Dependence Of Deep Subwavelength Metallic Apertures In The Mid-Wave Infrared, Heath Gemar
Spectral Dependence Of Deep Subwavelength Metallic Apertures In The Mid-Wave Infrared, Heath Gemar
Electronic Theses and Dissertations, 2020-
For two decades, extraordinary optical transmission (EOT) has amplified exploration into subwavelength systems. Researchers have previously suggested exploiting the spectrally selective electromagnetic field confinement of subwavelength cavities for multispectral detectors. Utilizing the finite-difference frequency domain (FDFD) method, we examine electromagnetic field confinement in both 2-dimensional and 3-dimensional scenarios from 2.5 to 6 microns (i.e., mid-wave infrared or MWIR). We explore the trade space of deep subwavelength cavities and its impact on resonant enhancement of the electromagnetic field. The studies provide fundamental understanding of the coupling mechanisms allowing for prediction of resonant spectral behavior based on cavity geometry and material properties. …
Inheritance, Kenneth Noguera
Inheritance, Kenneth Noguera
Electronic Theses and Dissertations, 2020-
Inheritance follows the journey of a boy finding himself through the discovery of family secrets and his own sexuality. This hybrid work, part poem, part essay, explores a boy transitioning to adulthood while unearthing secrets about himself and where he comes from. He finds solace in the retelling of stories passed down from within his family and encounters creatures which shift, morph, and lie. In this surreal world, people commune with spirits, the dead find a voice, and a boy breaks and remakes himself. The work divides into three parts, beginning with memoiresque poems from the speaker leading to an …
Data Driven Methods For Large Scale Network Level Traffic Modeling, Rezaur Rahman
Data Driven Methods For Large Scale Network Level Traffic Modeling, Rezaur Rahman
Electronic Theses and Dissertations, 2020-
Rapid growth in population along with urban-centric activities impose a massive demand on existing transportation systems, thus increasing traffic congestion and other mobility related challenges. To overcome such challenges, we need network-scale models to accurately predict real-time traffic demand and associated congestion. However, traditional network modeling approaches have shortcomings due to the complexity in traffic flow modeling, limited scope to incorporate real-time data available from emerging data sources and requiring excessive computation time to generate accurate estimation of traffic flows. Advancement in traffic sensing technologies with big data has created a new opportunity to overcome these challenges and implement deployable …
On Mode Transition Phenomenon And Operating Conditions In Rotating Detonation Rocket Engines, Taha Rezzag-Lebza
On Mode Transition Phenomenon And Operating Conditions In Rotating Detonation Rocket Engines, Taha Rezzag-Lebza
Electronic Theses and Dissertations, 2020-
The work presented herein consist of first studying the instantaneous properties of the detonation waves in a rotating detonation rocket engine by tracking each individual wave and recording its position, velocity, and peak intensity as it travels around the annulus. Results for a steady portion of a test performed on a rotating detonation rocket engine show that the wave properties exhibit oscillatory behavior. Results obtained from the rotating detonation rocket engine show that the properties are highly dependent on the azimuthal position. In an attempt to understanding the cause of such a behavior, similar investigations were performed on an air-breathing …
A Framework For The Design And Characterization Of Advanced Gaskets, Sannmit Shinde
A Framework For The Design And Characterization Of Advanced Gaskets, Sannmit Shinde
Electronic Theses and Dissertations, 2020-
Most industrial manufacturing or processing plants use bolted connections between pipes that transfer media from one location to another. Gaskets are often used to seal these systems as they offer elevated levels of leak mitigation; however, despite their nearly universal usage, the current understanding of gasket mechanics at the meso-scale is still limited. Contemporary gaskets feature viscoelastic materials, fillers, textures, and are fabricated at various thicknesses. They are used in a wide range of thermal, mechanical, chemical, and temporal conditions. The current work characterizes polytetrafluoroethylene (PTFE) gaskets made with several different filler materials and having vastly different geometries. The chemically …
An Analysis Of Performance-Based Funding Policies At An Open Access Institution, John Brady
An Analysis Of Performance-Based Funding Policies At An Open Access Institution, John Brady
Electronic Theses and Dissertations, 2020-
Performance-based funding policies have become popular among state legislators seeking ways to hold public higher education institutions accountable. Approximately 30 states currently use performance-based funding policies to tie state appropriations to institutional outcomes according to a defined set of metrics. Despite the popularity of the policy approach, very little empirical evidence exists to suggest that performance-based funding is effective in producing the often-intended outcomes of increased student retention and degree attainment rates. Numerous studies have indicated that these policies may produce unintended outcomes including the restriction of access, the gaming of performance-based funding systems, and the widening of equity gaps. …
Using Lidar To Locate Indigenous Mound Structures Along The St. Johns River In The Ocala National Forest, Taylor Collore
Using Lidar To Locate Indigenous Mound Structures Along The St. Johns River In The Ocala National Forest, Taylor Collore
Electronic Theses and Dissertations, 2020-
The Indigenous people of Florida terraformed the region's relatively flat landscape into monumental vantage points for residence, burial, and displays of regional power. Known as mound structures today, these long-abandoned sites are now obscured by dense vegetation and thick tree canopies making their rediscovery difficult. Using Light Detection and Ranging (LiDAR) technology these lost sites can be located remotely for protection and study. In this research, LiDAR is used to locate Indigenous mound sites along the St. Johns River within the Ocala National Forest. Using free an open source geographic information systems (GIS) and similar software, LiDAR point cloud data …
Understanding The Behavior Of The Covid-19 Pandemic Using Data Analytics, Mohammad Reza Davahli
Understanding The Behavior Of The Covid-19 Pandemic Using Data Analytics, Mohammad Reza Davahli
Electronic Theses and Dissertations, 2020-
In December 2019, China announced the breakout of a new virus identified as coronavirus SARS-CoV-2 (COVID-19), which soon grew exponentially and became a global pandemic. Despite strict actions to mitigate the spread of the virus in various countries, the COVID-19 pandemic resulted in a significant loss of human life in 2020 and 2021. To better understand the pandemic, this doctoral research incorporated data analytics to evaluate the behavior and impacts of the virus. The doctoral research contributed to the scientific body of the knowledge in different ways including (1) presenting a systematic literature review of current research and topics about …
Quantifiability: Concurrent Correctness From First Principles, Victor Cook
Quantifiability: Concurrent Correctness From First Principles, Victor Cook
Electronic Theses and Dissertations, 2020-
Architectural imperatives due to the slowing of Moore's Law, the broad acceptance of relaxed semantics and the O(n!) worst case verification complexity of sequential histories motivate a new approach to concurrent correctness. Desiderata for a new correctness condition are that it be independent of sequential histories, compositional over objects, flexible as to timing, modular as to semantics and free of inherent locking or waiting. This dissertation proposes Quantifiability, a novel correctness condition based on intuitive first principles. Quantifiablity is formally defined with its system model. Useful properties of quantifiability such as compositionality, measurablility and observational refinement are demonstrated. Quantifiability models …
Optimizing Mixed Reality Simulation To Support Stem Graduate Teaching Assistants In Developing Student-Centered Pedagogical Skills, Constance Doty
Optimizing Mixed Reality Simulation To Support Stem Graduate Teaching Assistants In Developing Student-Centered Pedagogical Skills, Constance Doty
Electronic Theses and Dissertations, 2020-
Physics graduate teaching assistants (GTA) often instruct student-centered lab and recitation sections at large universities, creating the opportunity to positively impact students. However, as STEM GTA professional development varies by institution and discipline, GTAs rarely receive feedback about their teaching. In K-12 teacher preparation, "microteaching", where a teacher teaches a lesson to peers acting as students, is used to provide feedback. Research has demonstrated benefits to microteaching in K-12 teacher and STEM GTA preparation, but practicing teachers find microteaching can lack authenticity. Recently, researchers have explored integrating technology, like simulation, in pedagogy training to provide a more authentic training experience. …
Capsule Networks For Video Understanding, Kevin Duarte
Capsule Networks For Video Understanding, Kevin Duarte
Electronic Theses and Dissertations, 2020-
With the increase of videos available online, it is more important than ever to learn how to process and understand video data. Although convolutional neural networks have revolutionized the representation learning from images and videos, they do not explicitly model entities within the given input. It would be useful for learned models to be able to represent part-to-whole relationships within a given image or video. To this end, a novel neural network architecture - capsule networks - has been proposed. Capsule networks add extra structure to allow for the modeling of entities and has shown great promise when applied to …
Secondary Teachers' Perceptions Of Teacher Authenticity, Robert Hovel
Secondary Teachers' Perceptions Of Teacher Authenticity, Robert Hovel
Electronic Theses and Dissertations, 2020-
Teachers are confronted with many obstacles when learning to be the best teacher they can for their students. Teachers face challenges such as working with introverted students, developing activities that are fruitful and sustainable for varying students, and keeping students all focused on the goal of learning (Tasgin & Tunc, 2018). However, the authenticity of an instructor, while being researched in college and counseling settings, has not been sufficiently examined in high school settings. The authenticity of the instructor is a motivating factor for students at the college level (Kreber & Klampfleitner, 2013; Kreber & Klampfleitner, 2012; Kreber et al., …
Using Expectation Violation Theory To Evaluate Dialectal Bias In Courtroom Contexts, Christina Joseph
Using Expectation Violation Theory To Evaluate Dialectal Bias In Courtroom Contexts, Christina Joseph
Electronic Theses and Dissertations, 2020-
There is much evidence to indicate the role of speaker accent expectations and its impacts on the subsequent rating of the speaker. Additionally, examples including the Central Park Five as well as Rachel Jeantel of the Trayvon Martin case indicate the impacts of this speaker rating particularly in the context of the courtroom. This necessitates the further evaluation of the impact of dialectal bias on speaker ratings especially in the context of a courtroom due to the severity of the impacts. Utilizing a 4x2 between subjects experimental design manipulating on the basis of both dialect and speaker expectation, this study …
Acoustoelectric Amplification In Piezoelectric-Silicon Micromachined Lamb Wave Devices, Hakhamanesh Mansoorzare
Acoustoelectric Amplification In Piezoelectric-Silicon Micromachined Lamb Wave Devices, Hakhamanesh Mansoorzare
Electronic Theses and Dissertations, 2020-
In this dissertation, heterostructured micro-acoustic devices are explored that leverage the interactions between acoustic phonons and electrons to enable radio frequency (RF) signal amplification or attenuation. Thin films of piezoelectric and semiconductor material are tailored into a heterostructure that allows for a strong acoustoelectric (AE) effect due to the combination of high electromechanical coupling and high electron drift velocity in said films respectively. In such devices, the relative electron drift and acoustic velocities could determine whether the RF signal undergoes AE gain or loss, rendering the device non-reciprocal. This is a highly sought-after property for building isolators and circulators which …
Framework Of Big Data Analytics In Real Time For Healthcare Enterprise Performance Measurements, Ahmed Mohamed
Framework Of Big Data Analytics In Real Time For Healthcare Enterprise Performance Measurements, Ahmed Mohamed
Electronic Theses and Dissertations, 2020-
Healthcare organizations (HCOs) currently have many information records about their patients. Yet, they cannot make proper, faster, and more thoughtful conclusions in many cases with their information. Much of the information is structured data such as medical records, historical data, and non-clinical information. This data is stored in a central repository called the Data Warehouse (DW). DW provides querying and reporting to different groups within the healthcare organization to support their future strategic initiatives. The generated reports create metrics to measure the organization's performance for post-action plans, not for real-time decisions. Additionally, healthcare organizations seek to benefit from the semi-structured …
A Linear Dynamical Perspective On Epidemiology: Interplay Between Early Covid-19 Outbreak And Human Mobility, Shakib Mustavee
A Linear Dynamical Perspective On Epidemiology: Interplay Between Early Covid-19 Outbreak And Human Mobility, Shakib Mustavee
Electronic Theses and Dissertations, 2020-
This research investigates the impact of human activity and mobility (HAM) in the spreading dynamics of an epidemic. Specifically, it explores the interconnections between HAM and its effect on the early spread of the COVID-19 virus. During the early stages of the pandemic, effective reproduction numbers exhibited a high correlation with human mobility patterns, leading to a hypothesis that the HAM system can be studied as a coupled system with disease spread dynamics. This study applies the generalized Koopman framework with control inputs to determine the nonlinear disease spread dynamics and the input-output characteristics as a locally linear controlled dynamical …
"Clothes Make Men": Clothing And The Embodiment Of Gender In Virginia, 1750-1775, Rhiannon O'Neil
"Clothes Make Men": Clothing And The Embodiment Of Gender In Virginia, 1750-1775, Rhiannon O'Neil
Electronic Theses and Dissertations, 2020-
This study explores how late colonial Virginians used clothing to control, enforce, and negotiate gender. Gender, both as a system of power and as a category of social identity, became linked with the material forms of clothing that Virginians wore in their everyday lives. The identification of clothing with the body enabled Virginians to actively make choices about how to perform themselves to the wider culture of observation and perception present in the colony. Dress was ubiquitous, but its meanings were variable, changing, and unstable. In eighteenth-century Virginia, Anglo-descended colonists imported ideals from Britain, which then produced Chesapeake-specific gender relationships, …
The Social And Behavioral Influences Of Interactions With Virtual Dogs As Embodied Agents In Augmented And Virtual Reality, Nahal Norouzi
The Social And Behavioral Influences Of Interactions With Virtual Dogs As Embodied Agents In Augmented And Virtual Reality, Nahal Norouzi
Electronic Theses and Dissertations, 2020-
Intelligent virtual agents (IVAs) have been researched for years and recently many of these IVAs have become commercialized and widely used by many individuals as intelligent personal assistants. The majority of these IVAs are anthropomorphic, and many are developed to resemble real humans entirely. However, real humans do not interact only with other humans in the real world, and many benefit from interactions with non-human entities. A prime example is human interactions with animals, such as dogs. Humans and dogs share a historical bond that goes back thousands of years. In the past 30 years, there has been a great …
Synthesis Methodologies For Robust And Reconfigurable Clock Networks, Necati Uysal
Synthesis Methodologies For Robust And Reconfigurable Clock Networks, Necati Uysal
Electronic Theses and Dissertations, 2020-
In today's aggressively scaled technology nodes, billions of transistors are packaged into a single integrated circuit. Electronic Design Automation (EDA) tools are needed to automatically assemble the transistors into a functioning system. One of the most important design steps in the physical synthesis is the design of the clock network. The clock network delivers a synchronizing clock signal to each sequential element. The clock signal is required to be delivered meeting timing constraints under variations and in multiple operating modes. Synthesizing such clock networks is becoming increasingly difficult with the complex power management methodologies and severe manufacturing variations. Clock network …
Human Behavior In Domestic Environments: Prediction And Applications, Sharare Zehtabian
Human Behavior In Domestic Environments: Prediction And Applications, Sharare Zehtabian
Electronic Theses and Dissertations, 2020-
A longstanding goal of human behavior science is to model and predict how humans interact with each other or with other systems. Such models are beneficial and have many applications, including designing and implementing assistive technologies, improving users' experiences and quality of life and making better decisions to create public policies. Behavior is highly complex due to uncertainties and a lack of scientific tools to measure it. Hence prediction of human behavior cannot be 100% accurate. However, prediction is also not hopeless because the biological needs, as well as cultural conventions (for instance, regarding meal times) set the general patterns …
Investigating The Role Of The Skeletal Muscle In Amyotrophic Lateral Sclerosis Neuromuscular Junction Dysfunction, Agnes Badu-Mensah
Investigating The Role Of The Skeletal Muscle In Amyotrophic Lateral Sclerosis Neuromuscular Junction Dysfunction, Agnes Badu-Mensah
Electronic Theses and Dissertations, 2020-
Neuromuscular junction (NMJ) dysfunction has been identified as one of the earliest events in Amyotrophic Lateral Sclerosis (ALS) pathology. However, which tissue type induces NMJ disruption; be it the motoneurons (hMN), Schwann cells or skeletal muscle (hSKM) remains unresolved. While mechanisms by which ALS hMN contribute to NMJ dysfunction are well-described in literature, limited information exist on how the other tissue types in the tripartite synapse (hSKM and Schwann cells) induce and/or contribute to ALS NMJ disruption. A fair understanding of the role of each tissue type in NMJ dysfunction would help shape the trajectory of future ALS research and …
"A Penny For Your Thoughts?": Development And Validation Of A Revised Measure Of Rumination, Jenna Beltramo
"A Penny For Your Thoughts?": Development And Validation Of A Revised Measure Of Rumination, Jenna Beltramo
Electronic Theses and Dissertations, 2020-
The present research sought to demonstrate the utility, validity, and reliability of a new measure of rumination assessing both the intentionality and valence of ruminative thought. The Intentionality and Valence of Work-Related Ruminations Questionnaire (IV-WRRQ) is developed based on Martin and Tesser's (1996) goal progress theory of rumination and existing approaches across various sub-disciplines in psychology. Specifically, it is designed to assess four distinct forms of rumination: deliberate-positive, deliberate-negative, intrusive-positive, and intrusive negative rumination. Initial expert ratings provided insight into the initial construct validity, face validity, and readability of the items. The measure was further refined in a study among …
Assessment Of Leadership Styles And Lean Six Sigma Critical Success Factors In The Aerospace And Defense Industry, Corey Gellis
Assessment Of Leadership Styles And Lean Six Sigma Critical Success Factors In The Aerospace And Defense Industry, Corey Gellis
Electronic Theses and Dissertations, 2020-
The Aerospace and Defense industry has shifted into a global competitive market that is prioritizing innovative advancements in technological capabilities. Corporations are now having to further develop customer focused strategies based in adding value while reducing costs. Large manufacturing corporations often embrace continuous improvement methodologies, such as Lean Six Sigma, for process improvement. Many organizations have received minimal benefit from the methodology which may link back to leadership and culture. This research examined which styles of leadership are most effective when trying to gain the most value from Lean Six Sigma within manufacturing. The research study surveyed 112 black belt …
Using Peptide Design To Engineer Polyelectrolyte Complex Biomaterials, Sara Tabandeh
Using Peptide Design To Engineer Polyelectrolyte Complex Biomaterials, Sara Tabandeh
Electronic Theses and Dissertations, 2020-
The self-assembly of oppositely charged polymers provides a versatile platform to design materials for diverse applications in biology and medicine. Electrostatically-driven phase separation of oppositely charged polymers in aqueous solution gives rise to the formation of a polymer-rich phase called a polyelectrolyte complex (PEC). PECs can be in the form of liquid droplets (complex coacervates) or amorphous solid precipitates. Unlike synthetic polymers, peptides are good candidates for developing tailor-made formulations and structure-property relationships due to their biocompatibility, precise control over sequences, and ability to program hydrogen bonding interactions. However, little is known about the effect of combining additional molecular interactions …
The 'Ideal Victim' Of Intimate Partner Violence Against Women: An Examination Of The Impact Of Victim/Offender Relationship Status, Victim Self-Identity, And Observer Gender On Constructing Victim Status, Kelli Dauphinais
Electronic Theses and Dissertations, 2020-
Guided by Nils Christie's (1986) Ideal Victim framework, the current study examines the effect that victim/offender relationship status (casual vs. serious), victim self-identity (as a "victim" or a "survivor"), and observer gender (woman vs. man) have on victim blame attributions. Data were collected from 329 adult students at a large public university in the Southwest United States using an online, experimental vignette design. Three separate one-way analysis of variances (ANOVAs) were conducted to test the study's three hypotheses. Results suggest that among the study sample, victim/offender relationship status (H1) and victim self-identity (H2) do not significantly affect victim blame attribution …
An Examination Of The Relationship Between Institutional Financial Aid Programs And Four-Year Graduation Rates, Dawn Herrod
An Examination Of The Relationship Between Institutional Financial Aid Programs And Four-Year Graduation Rates, Dawn Herrod
Electronic Theses and Dissertations, 2020-
Institutions are increasingly searching for strategies for using institutional financial aid awards to improve graduation in four years. The purpose of this study was to examine the relationship between institutional award programs with graduation in four years. Furthermore, there was investigation into any interaction that existed between ethnicity, Expected Family Contribution (EFC), and the type of award on graduation in four years. Covariates were tested from a theoretical framework that included elements from sociological and economic theories, academic components, and the concept of liquidity constraints. Data was queried from the student information system at the selected site for students who …