Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

Master's Theses (2009 -)

Discipline
Keyword
Publication Year
File Type

Articles 1 - 30 of 743

Full-Text Articles in Entire DC Network

Comprehensive Behavioral Intervention For Tics Specialty Clinic Outcomes, Brandon Xavier Pitts Apr 2024

Comprehensive Behavioral Intervention For Tics Specialty Clinic Outcomes, Brandon Xavier Pitts

Master's Theses (2009 -)

Tics are abrupt, repetitive, and non-rhythmic movements (motor tics) and vocalizations (vocal tics). Persistent (Chronic) Tic Disorders (PTDs), which include conditions such as Tourette Disorder (TD), are characterized by involuntary motor and vocal tics. PTDs are associated with a myriad of adverse social repercussions, reduced quality of life, and concurrent psychiatric diagnoses, and occur in approximately 1.1% to 4.8% of the global population. Comprehensive Behavioral Intervention for Tics (CBIT) stands as the primary nonpharmacological therapeutic approach for tics. Although the efficacy of CBIT has been established in multiple large-scale randomized control trials (RCTs), there is a paucity of research scrutinizing …


A Study Of The Effect Of Preparation Parameters On The Mechanical Properties Of Freeze-Dried Gelatin-Elastin-Hyaluronate Scaffolds, Mansour Qamash Apr 2024

A Study Of The Effect Of Preparation Parameters On The Mechanical Properties Of Freeze-Dried Gelatin-Elastin-Hyaluronate Scaffolds, Mansour Qamash

Master's Theses (2009 -)

This thesis is dedicated to a detailed study of changes in the properties of Gelatin-Elastin-Hyaluronate (GEH) tissue engineering scaffold resulting from changes in preparation parameters. More specifically, utilizing a combination of foaming and freeze-drying techniques, this research investigates the effects of different parameters, including agitation speed, duration time, and chilling temperature on the scaffold’s structural integrity, porosity, and mechanical properties. The methodology involves a carefully calibrated process in which the scaffold matrix is initially prepared by incorporating 8% gelatin, 2% elastin, and 0.5% hyaluronate (w/v) into a homogenous aqueous solution, followed by controlled agitation and subsequent freezing at designated temperatures. …


Development Of Coarctation Of The Aorta Software To Combat Hypertension (Coach), Shahd Sawalhi Apr 2024

Development Of Coarctation Of The Aorta Software To Combat Hypertension (Coach), Shahd Sawalhi

Master's Theses (2009 -)

Coarctation of the aorta (CoA) is a congenital cardiovascular defect characterized by narrowing of the proximal descending thoracic aorta and is often associated with long-term hypertension (HTN) even after treatment. The current threshold for intervention in CoA patients, defined by a >20 mmHg peak-to-peak blood pressure gradient (BPGpp), does not effectively prevent HTN post-treatment and depends on the approached used for BPGpp measurement. To address this, the objective of this study was to develop the Coarctation of the Aorta App to Combat Hypertension (CoACH), which integrates a new index, the continuous flow pressure gradient (CFPG). The CFPG provides a more …


Investigating The Impacts Of Bin Variability On Particle Size Distributions In Multiphase Eulerian-Eulerian Simulations, Wilbert Alexander Cruz Apr 2024

Investigating The Impacts Of Bin Variability On Particle Size Distributions In Multiphase Eulerian-Eulerian Simulations, Wilbert Alexander Cruz

Master's Theses (2009 -)

In this study, a 3D steady-state Eulerian-Eulerian simulation was developed to investigate flow performance in a dilute pneumatic conveying system. The investigation focused on two main objectives: (1) assessing the influence of bin selection on solution accuracy for representing the polydisperse mixture, and (2) exploring methods to simplify the modeling of polydisperse particles in the simulation by utilizing a mean diameter derived from the mixture’s particle size distribution. The system's geometry and initial boundary conditions featured a 10.6 m long, 150 mm diameter horizontal pipe with both gaseous and solid phases initially moving at 27 m/s . The steady-state simulation …


Kinematics Of Bowing The Re-Strung Violin, Sarah Hayden Apr 2024

Kinematics Of Bowing The Re-Strung Violin, Sarah Hayden

Master's Theses (2009 -)

Building upon existing research in motor learning and sensorimotor control, this thesis explores how the performance of a real-world task (playing a simple musical piece on the violin) is impacted by the spatial re-arrangement of the violin’s strings, and how performance recovers with practice (relearning). I recorded audio performances and bow kinematics as violinists with a wide range of prior skills played a familiar 2-octave G-Major arpeggio 50 times. Some subjects played all 50 arpeggios on a violin with the standard string arrangement (the control violin). Another set of subjects played the middle 30 arpeggios with a “similar” violin with …


Viscoelastic Properties Of Thoraco-Abdominal Tissue Under Dynamic Compressive Loading, Devin Matthew Wozniak Apr 2024

Viscoelastic Properties Of Thoraco-Abdominal Tissue Under Dynamic Compressive Loading, Devin Matthew Wozniak

Master's Theses (2009 -)

Finite element analysis is an effective tool for modeling the mechanical behavior of biologic structures, especially in scenarios where physical experimentation is impractical. The accuracy of these models depends on comprehensive mathematical formulations that describe tissue behavior using parameters derived from laboratory data. Currently there is a shortage of experimental data suitable for detailed parameter estimation. The goal of the current study was to generate a viscoelastic dataset using fresh harvested porcine tissue maintained under in vivo conditions, then provide a detailed constitutive model to capture the complex mechanical response. A sevohydraullic piston with a 5-mm spherical tip indenter was …


A Computational Fluid Dynamics Analysis Comparing Irrigation Within Complex Root Canal Anatomy, Madeleinne Fern Apr 2024

A Computational Fluid Dynamics Analysis Comparing Irrigation Within Complex Root Canal Anatomy, Madeleinne Fern

Master's Theses (2009 -)

Objectives: The aim of this study was to compare fluid dynamics in complex root canal systems shaped with minimally invasive versus progressively tapered file systems using single and double side-vented irrigation tips at different flowrates. Methods: Two identical, plastic mandibular molars were instrumented with minimally invasive and progressive file systems and scanned via micro-computed tomography. A computational fluid dynamics model was generated and enhanced with accessory canals and isthmus in the distal and mesial roots, respectively. The model replicated irrigation within complex canal anatomy using both a single and double side-vented, 30-gauge irrigation tip at four flowrates: 0.05, 0.10, 0.15 …


Impact Of Learning-Style-Based Education On Student Performance And Perception In Preclinical Endodontics: Part Ii, Rebecca Flaugher Apr 2024

Impact Of Learning-Style-Based Education On Student Performance And Perception In Preclinical Endodontics: Part Ii, Rebecca Flaugher

Master's Theses (2009 -)

Objectives: This study aimed to investigate if providing supplemental learning materials aligned to students’ learning modes is equally beneficial among all modes both subjectively and objectively. Methods: IRB approval was obtained (Approval #HR-3746). Second-year dental students (n=92) enrolled in Preclinical Endodontics took Kolb Experiential Learning Profile (KELP) questionnaire to determine their learning mode: Abstract Conceptualization (AC), Active Experimentation (AE), Reflective Observation (RO), or Concrete Experience (CE). Students were assigned into groups corresponding to their learning mode. Students performed non-surgical root canal treatment (NSRCT) on a #9 typodont tooth and were graded to determine baseline performance (Project 1). Students were then …


Performance And Preference Of Rotary Files By Pre-Doctoral Dental Students At Marquette School Of Dentistry, Morgan Elizabeth Mccall Apr 2024

Performance And Preference Of Rotary Files By Pre-Doctoral Dental Students At Marquette School Of Dentistry, Morgan Elizabeth Mccall

Master's Theses (2009 -)

Introduction: The aim of this study was twofold: 1) objectively evaluate root canal shaping and procedural mishaps using different NiTi rotary systems in the hands of unexperienced pre-doctoral dental students; 2) to gain an understanding of which rotary file system students subjectively prefer. Methods: Second year dental students (n=94) enrolled in preclinical endodontics received instructional videos and didactic lectures on the use of three different rotary filing systems: Vortex Blue, EndoSequence, and ProTaper Universal. Students completed root canal treatment using each file system on 3D printed premolars. The quantitative evaluation was completed after each project by two calibrated examiners using …


Development And Validation Of A Vehicle Front Profile Finite Element Model To Evaluate Pedestrian Impacts, James Wolf Apr 2024

Development And Validation Of A Vehicle Front Profile Finite Element Model To Evaluate Pedestrian Impacts, James Wolf

Master's Theses (2009 -)

In 2021, there were nearly 7500 pedestrians killed in traffic crashes in the U.S., the highest since 1981. Since the year 2000, Europe and Japan have adopted pedestrian crash protection programs for vehicles and have seen a decline in pedestrian fatalities; the U.S. has not yet adopted pedestrian crash protection and has seen an increase in pedestrian fatalities in that same time. European New Car Assessment Programme (Euro NCAP) outlines a detailed procedure for evaluations of new vehicles for pedestrian safety through headform, upper legform, and lower legform tests. Euro NCAP also uses generic finite element (FE) front-end vehicle models, …


In Vitro Comparison Of Cellular Cytoxicity Of Conventional Vs. Cad/Cam Denture Base Materials, Zainab Hill Albasry Apr 2024

In Vitro Comparison Of Cellular Cytoxicity Of Conventional Vs. Cad/Cam Denture Base Materials, Zainab Hill Albasry

Master's Theses (2009 -)

Aim: Adverse reactions and local irritation of the oral mucosa to prostheses constructed from PMMA include allergic response, erythema, and a burning sensation of the tongue and mucosal tissues. Evidence on the cytotoxic effects of digitally manufactured denture base materials remains scarce. The aim of this study was to evaluate and compare the cytotoxic effects of CAD/CAM fabricated denture bases versus conventionally heat-cured acrylic resin materials. Materials and Methods: In total, 75 disks of five different denture resin materials – 15 disks per group were prepared: Ivocap (group 1; control), Ivotion denture base (group 2), Lucitone 3D denture base (group …


Analysis Of Head Resultant Linear Acceleration Transformation To Head Center Of Gravity For Ear-Based Sensor Application, Jonathan Wilder Apr 2024

Analysis Of Head Resultant Linear Acceleration Transformation To Head Center Of Gravity For Ear-Based Sensor Application, Jonathan Wilder

Master's Theses (2009 -)

A wearable ear-based system, incorporating hearing protection, communications capabilities, and a head impact sensor, has been developed for military use. Enhancing computational efficiency is a pivotal goal for system sustainability. The first and second aims of this research were to assess tradeoffs in accuracy for two potential on-board computational processes: 1) rigid body transformations and 2) adjusting transformation dimensions for different head sizes. The third aim of this research study was to validate the performance of the system in the laboratory. For the first aim, ear-measured and transformed ear-to-head CG accelerations were compared to head CG-measured accelerations. For the second …


Global Challenges In Accessing Mental Health Services And Addressing The Impact Of Alzheimer's Disease And Depression, Padmapriya Velupillai Meikandan Apr 2024

Global Challenges In Accessing Mental Health Services And Addressing The Impact Of Alzheimer's Disease And Depression, Padmapriya Velupillai Meikandan

Master's Theses (2009 -)

This research project focuses on developing a quantum sensing system that can detect biomarkers associated with health disorders, like Alzheimer’s and depression. Our goal is to create a sensitive and highly selective quantum sensing device using a diamond nitrogen vacancy (NV) center. To train and test our quantum machine learning algorithms we will preprocess data from the available Human Connectome Project dataset. This dataset forms the basis of our quantum-based methods. The core of our project revolves around developing quantum machine learning algorithms that utilize techniques such as Support Vector Machines and neural networks to diagnose health disorders using data …


Explaining Heterogeneity: Identifying Subgroups Of Adult Attention-Deficit/Hyperactivity Disorder, Laura Mcguigan Apr 2024

Explaining Heterogeneity: Identifying Subgroups Of Adult Attention-Deficit/Hyperactivity Disorder, Laura Mcguigan

Master's Theses (2009 -)

Attention-deficit/hyperactivity disorder (ADHD) is a highly prevalent neurodevelopmental disorder that often persists into adulthood. Individuals with ADHD present with varied patterns of neurocognitive impairment, psychological comorbidities, and functional challenges. The current characterization of ADHD into three subgroups (primarily inattentive, primarily hyperactive/impulsive, combined inattentive-hyperactive/impulsive presentation) does not fully explain the heterogeneity of challenges experienced by this population. In this study, 259 adult patients [Mage= 25.94; SD=7.83; 78% Caucasian; 54% male] referred for an ADHD evaluation were investigated, and latent profile analysis was conducted. Self-reported ADHD symptoms, psychological functioning, and neuropsychological functioning were considered to identify subgroups. Results revealed four distinct classes: …


Bridging The Need-To-Access Gap: Examining Parents Who Perceive A Need For Their Youth To Receive Mental Health Services, Alexandra Bowling Apr 2024

Bridging The Need-To-Access Gap: Examining Parents Who Perceive A Need For Their Youth To Receive Mental Health Services, Alexandra Bowling

Master's Theses (2009 -)

Parents often act as gatekeepers to their children and adolescents receiving mental health services. Youth help-seeking models propose that three parent-focused factors (perceptions of their youth’s illness profile, predisposing characteristics, and enabling resources) impact each stage of the help-seeking process: problem recognition (i.e., perceived needers), decision to seek help (i.e., treatment intenders), and service selection and utilization (i.e., treatment utilizers). Research is needed that examines how the above factors relate to parents getting “stuck” in the help-seeking process (i.e., do not become treatment utilizers). The current study investigated whether predisposing characteristics (i.e., family and demographic characteristics, mental health attitudes and …


Integrating Drone And Satellite Imaging With Machine Learning For Green Stormwater Infrastructure Condition Assessments, Matthew Dupasquier Apr 2024

Integrating Drone And Satellite Imaging With Machine Learning For Green Stormwater Infrastructure Condition Assessments, Matthew Dupasquier

Master's Theses (2009 -)

Green Stormwater Infrastructure (GSI) has been increasingly utilized to improve urban stormwater management strategies. However, the performance and utility of GSI decrease over time if the infrastructure is not properly maintained. In recent history, the intrinsic operations and maintenance costs associated with the complex networks of new infrastructure have placed a burden on municipalities, ultimately prohibiting many from reaching the full extent of their stormwater management goals. One way for cities to achieve cost savings is through automated monitoring that can quickly assess the condition of GSI assets; however, existing cost-effective technologies are limited. Drones and satellites may be able …


Advanced Machine Learning Approaches For Predicting Mental Health Disorders Following Long Covid Diagnosis, Manoj Purohit Apr 2024

Advanced Machine Learning Approaches For Predicting Mental Health Disorders Following Long Covid Diagnosis, Manoj Purohit

Master's Theses (2009 -)

After the global spread of COVID-19, the enduring effects of Long COVID and its health implications have emerged as a significant global issue, affecting people worldwide. The lingering symptoms post a COVID-19 infection can significantly affect individuals who had previously contracted the virus, exerting considerable influence over their mental well-being. Prolonged recuperation associated with Long COVID has been connected with the emergence of symptoms such as depression and anxiety, all of which can have adverse effects on emotional health. This project delves into an in-depth analysis of healthcare data pertaining to Long COVID from the Froedtert Health (FH) Medical System …


Developing Continuous Predictive Controls For Ankle Angle And Moment Across Multiple Mobility Tasks, John Eganhouse Oct 2023

Developing Continuous Predictive Controls For Ankle Angle And Moment Across Multiple Mobility Tasks, John Eganhouse

Master's Theses (2009 -)

This thesis aimed to create a predictive model for controlling lower limb prostheses, using electrical activity from muscles in the residual limb to predict ankle angle and moment across mobility tasks including level ground walking, stair ascent, and descent (LW, SA, and SD). In aim 1, kinematic and kinetic ankle data, were used together with electromyographic (EMG) signals obtained from six healthy ambulators to train a nonlinear autoregressive (NARX) model to predict ankle angle and moment. Networks were trained with a delay of 58.33 ms, using a 120 ms sampling window and tested for their ability to predict ankle angle …


Internalizing Symptoms In Autistic Young Adults: Comparing The Cognitive And Physiological Components Of Emotion Regulation, Sarah Lehman Oct 2023

Internalizing Symptoms In Autistic Young Adults: Comparing The Cognitive And Physiological Components Of Emotion Regulation, Sarah Lehman

Master's Theses (2009 -)

Autistic people experience co-occurring mental illness at a substantially greater rate compared to their neurotypical counterparts. Of these comorbid psychopathologies, internalizing disorders (anxiety and depression) are among the most prevalent. Emotion dysregulation has been identified as a contributing factor to this phenomenon and potential treatment target. The current study employed cognitive (e.g., use of suppression and use of cognitive reappraisal) and physiological (e.g., respiratory sinus arrhythmia (RSA) and heart period) measures to more holistically capture the multifaceted construct of emotion regulation compared to prior research. In a sample of autistic young adults (N = 63) ages 17-29 (M = 20.14), …


Reduced Bias User Preference Methods For Determining The Pareto-Optimal Solution Point, Dylan Thomas Johnson Oct 2023

Reduced Bias User Preference Methods For Determining The Pareto-Optimal Solution Point, Dylan Thomas Johnson

Master's Theses (2009 -)

Engineering design is filled with tradeoffs between competing objectives such as performance, mass, cost, and schedule. A designer must navigate these complex multi-objective problems and deliver the right solution for their application. Multi-objective optimization techniques are powerful and widely used; however, a key drawback to these techniques is that they often output a set of equivalent solutions called the Pareto Front. The designer must perform an additional multi-objective down selection on the Pareto Front to determine a single Pareto-optimal solution point for their design. Existing Pareto Front processing techniques either use traditional infinitely adjustable weights, which can yield results that …


Design And Validation Of A Variable Stiffness Three Degree Of Freedom Planar Robot Arm, Andrew L. Bernhard Oct 2023

Design And Validation Of A Variable Stiffness Three Degree Of Freedom Planar Robot Arm, Andrew L. Bernhard

Master's Theses (2009 -)

The need exists for robotic manipulators that can interact with an environment having uncertain kinematic constraints. A robot has been designed and built for proof of concept of a passive variable compliance control strategy that can vary joint stiffness to achieve higher performance dexterous manipulation. This novel planar robot incorporating variable stiffness actuators and common industrial controls allows the robot to comply with its environment when needed but also have high stiffness for precise motion control in free space. To perform both functions well, a high stiffness ratio (max/min stiffness) is required. A stiffness ratio up to 492 was achieved. …


Improving Benign Paroxysmal Positional Vertigo Diagnosis, Sida Zhang Oct 2023

Improving Benign Paroxysmal Positional Vertigo Diagnosis, Sida Zhang

Master's Theses (2009 -)

Benign Paroxysmal Positional Vertigo (BPPV) is one of the most common causes of dizziness. Especially for people over 45, the risk of BPPV is substantial. On the other hand, BPPV is often misdiagnosed and may require expensive examinations. This thesis introduces a prediction model based on machine learning to quickly, inexpensively, and accurately diagnose BPPV. The thesis starts by introducing BPPV and the statistics of BPPV misdiagnosis. Then, a patient survey is introduced. The patient survey includes 50 BPPV-related questions, which are used as training data for the machine learning model. Logistic Regression, Decision Tree, and Naïve Bayes were compared …


Creep Resistance And Microstructure In Binary Aluminum Cerium Alloy Produced By Laser Powder Bed Fusion, Jillian Ann Stinehart Jul 2023

Creep Resistance And Microstructure In Binary Aluminum Cerium Alloy Produced By Laser Powder Bed Fusion, Jillian Ann Stinehart

Master's Theses (2009 -)

Currently, the only commercially available aluminum alloy for additive manufacturing (AM) is AlSi10Mg, which is not suitable for high temperature applications. Al-Ce based alloys have been shown to be highly printable, cost-efficient alloys. Compared to cast Al-Ce alloys, the eutectic features are refined (<1μm), which give AM Al-10Ce favorable strength and ductility at room temperature. The low diffusivity and solubility of cerium in aluminum improve the retention of mechanical properties at high temperatures. In order to quantify the effect of cerium on the thermal stability of AM aluminum and show its suitability for high-temperature applications, Al-10Ce was creep tested between 60-77% of its absolute melting temperature. The creep performance of AM Al-10Ce was favorable compared to that of cast binary Al-Ce and AM AlSi10Mg and was comparable to that of cast ternary Al-Ce alloys. The stress exponent, n, was approximately 1 in the low stress regime and 5-7 in the high stress regime. The activation energy was 231kJ/mol. In comparison, both cast binary Al-Ce and AM AlSi10Mg have higher stress exponents and lower activation energies, showing AM Al-10Ce to be more creep resistant. After creep testing, slight grain coarsening was observed, while grain orientation remained unchanged. The melt pool boundaries (MPBs) faded in appearance after creep testing, and the number of columnar grains decreased.


Ecumenical Traditions: Byzantine And Franciscan Theology In Dialogue, Gino G. Grivetti Jul 2023

Ecumenical Traditions: Byzantine And Franciscan Theology In Dialogue, Gino G. Grivetti

Master's Theses (2009 -)

This thesis investigates the convergences between the Byzantine and Franciscan traditions in the areas of hagiography, mysticism, and dogmatic theology. Historically marginalized in the neo-scholastic synthesis of the nineteenth century, the closeness of Patriarch Bartholomew (b. 1940) and Pope Francis (b. 1936) has symbolized the significance of this dialogue in the modern ecumenical movement. The anonymous bios of St. Nilus of Rossano (d. 1005) and the first vita of St. Francis of Assisi (d. 1226) by Thomas of Celano (d. 1260) are representative of the hagiographical traditions of the Italo-Byzantine monks and the early Franciscans. The traditions came into direct …


The Universality Of God In Amo’S Oracles And Creation: A Historical-Critical Approach Within A Catholic Context, Alexandra Bochte Jul 2023

The Universality Of God In Amo’S Oracles And Creation: A Historical-Critical Approach Within A Catholic Context, Alexandra Bochte

Master's Theses (2009 -)

In the Old Testament, the Israelite nation is identified as a chosen people of God and in a covenantal relationship with him. This thesis will argue that the Noahide covenantal relationship extends to more than just the Israelites such that all creation is in a covenant with the universal God. This is supported through an exploration of Ancient Near Eastern literature and its similarities with biblical stories. Exegetical analyses of Psalms and prophetic biblical literature will further demonstrate God’s universality and will elucidate what it means to be in a covenantal relationship with God. When there is relationship there must …


Maxillary And Mandibular Incisor And Molar Dentoalveolar Heights In Untreated Subjects Presenting Class I And Class Ii Malocclusion, Samantha Zavada Cardinal Jul 2023

Maxillary And Mandibular Incisor And Molar Dentoalveolar Heights In Untreated Subjects Presenting Class I And Class Ii Malocclusion, Samantha Zavada Cardinal

Master's Theses (2009 -)

Objective : Class II malocclusion has been extensively studied, however there are many unanswered questions. This study analyzed the difference in incisor and molar dentoalveolar heights of untreated subjects presenting with Class I and Class II malocclusion. Dentialveolar heights are an aspect of the craniofacial complex that changes with growth and development and are manipulated by orthodontists. These changes hold important clinical implications for the development, maintenance and treatment of malocclusions. Methods : A sample of 96 untreated Class I and Class II subjects, with a total of 611 cephalograms was drawn from the archives of the University of Michigan …


Alveolar Bone Remodeling In Response To Orthodontic Tooth Movement, Matthew Raymond Mcgrady Jul 2023

Alveolar Bone Remodeling In Response To Orthodontic Tooth Movement, Matthew Raymond Mcgrady

Master's Theses (2009 -)

Objective: Dental protrusion and retrusion are common malocclusions in clinical orthodontics. When teeth are moved orthodontically, the alveolar bone surrounding the teeth remodels. In the past, incisor retraction-associated alveolar bone remodeling has been studied. However, less is known about the alveolar bone remodeling after incisors are proclined. This study aimed to assess the changes in alveolar bone thickness after proclination of maxillary incisors. The null hypothesis was that there is no difference in the surrounding alveolar bone thickness after orthodontic tooth movement. Materials and Methods: Patients were selected under the inclusion criteria of moderate-to-severe bimaxillary dental retrusion (U1-SN < 97°, L1-MP < 88.0°), absence of craniofacial anomalies, non-extraction, absence of missing teeth, with quality pre-and post-treatment lateral cephalometric images. Nineteen patients (10 males, 9 females; mean age 14.7 years) were selected, and their pre-treatment and post-treatment lateral cephalograms were digitally traced using a customized cephalometric analysis to compare changes in labial and lingual alveolar bone thickness (ABT) after orthodontic treatment. A two-sample t-test with R statistical software version 4.1.2 was used to measure the differences between the pre- and post-treatment cephalometric measurements. A p value less than 0.05 was considered statistically significant. Results: According to the SN-7° measurement method, ABT increased at the labial(b) SN-7 (0.27mm ± 0.70; p<0.05) and U1 labial(c) SN-7 (0.79mm ± 1.56; p<0.05) levels; however, ABT decreased at the U1 lingual (c) SN-7 (1.13mm ± 1.35; p<0.05) level. According to the perpendicular of the long axis of U1 root measurement method, ABT increased at the U1 labial(c) ⊥U1 (0.55mm ± 1.35; p<0.05) level while ABT decreased at the U1 lingual (b) ⊥U1 (0.79mm ± 1.03; p<0.05) and U1 lingual (c) ⊥U1 (1.61mm ±1.39; p<0.05) levels. Statistically significant changes were also found in post-treatment incisor angulation U1-SN° (8.05° ± 8.25; p<0.05), U1 – NA° (7.44° ± 8.08; p < 0.05) and post-treatment incisor position U1 – NA (mm) (1.64mm ± 2.63; p<0.05). Conclusion:The null hypothesis was rejected based on our results. There are statistically significant changes to the labial and lingual alveolar bone (ABT) after proclination of the maxillary incisors. Our data support previous findings in orthodontics literature. Further studies should be conducted that can employ larger sample sizes with imaging methods that overcome the limitations of conventional two-dimensional imaging.


Deep Learning Classification Of Deep Ultraviolet Fluorescence Images For Margin Assessment During Breast Cancer Surgery, Tyrell To Jul 2023

Deep Learning Classification Of Deep Ultraviolet Fluorescence Images For Margin Assessment During Breast Cancer Surgery, Tyrell To

Master's Theses (2009 -)

Breast-conserving surgery (BCS) is a widely used treatment for breast cancer, but ensuring the complete removal of cancer cells from the surgical margins remains a challenge. Deep ultraviolet (DUV) fluorescence scanning microscopy offers a potential solution by providing real-time whole-surface imaging of resected tissues during BCS. However, interpreting DUV images for margin assessment requires an automated classification method. This dissertation addresses this need by proposing a deep learning-based classification approach for DUV fluorescence images in intra-operative margin assessment of breast cancer.To overcome the limited availability of DUV image datasets and potential over- fitting, the study combines patch-level classification using transfer …


Reducing Porosity In Lpbf Ti-6al-4v By Parameter Optimization And Low Temperature Hot Isostatic Pressing Cycle, Penn Rawn Jul 2023

Reducing Porosity In Lpbf Ti-6al-4v By Parameter Optimization And Low Temperature Hot Isostatic Pressing Cycle, Penn Rawn

Master's Theses (2009 -)

Powder bed based additive manufacturing has advantages in its ability to make specialized parts with complex geometries. Unfortunately, components made through such processes of suffer from manufacturing defects including porosity. To study pore formation and removal, specimens of Ti-6Al-4V were built at varied levels of laser power, travel speed, hatch spacing, and layer thickness to obtain a variety of initial defect populations. The specimens were then subjected to a hot isostatic pressure (HIP) at 850 °C and 200 MPa to evaluate the low temperature high pressure (LTHP) cycle’s ability to remove pores. Image analysis was used to estimate the relative …


Trinitarian Theology As A Resource For The Theology Of Education, Anne Bullock Jul 2023

Trinitarian Theology As A Resource For The Theology Of Education, Anne Bullock

Master's Theses (2009 -)

The character of Catholic education has been variously described but is often associated with educating the whole person, a statement that is usually inadequately explored. In the first place, this “holistic” approach is often reduced to character education, which is an insufficient explanation of what makes Catholic schools distinctive. Moreover, the approach relies on a dense theological account of the human person, which can make it difficult to integrate into the daily reality of school life. This thesis critiques some insufficient approaches to Catholic education in light of the Church’s vision for education, beginning with Vatican II and Gravissimis Educationis …