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2018

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Investigation Of Rotational Deviations On Single Fiducial Tumor Tracking With Simulated Respiratory Motion Using Synchrony® Respiratory Motion Tracking For Cyberknife® Treatment, Zachary A. Christ Jan 2018

Investigation Of Rotational Deviations On Single Fiducial Tumor Tracking With Simulated Respiratory Motion Using Synchrony® Respiratory Motion Tracking For Cyberknife® Treatment, Zachary A. Christ

Electronic Theses and Dissertations 2010 - 2019

It is hypothesized that the uncertainty of the Synchrony® model from the rotation of a geometrically asymmetrical single fiducial shall be non-zero during the motion tracking. To validate this hypothesis, the uncertainty was measured for a Synchrony® model built for a respiratory motion phantom oriented at different yaw angles on a Cyberknife® treatment table. A Mini-ball Cube with three cylindrical GoldMark™ (1mmx5mm Au) numbered fiducials was placed inside a respiratory phantom and used for all tests. The fiducial with the least artifact interference was selected for the motion tracking. A 2cm periodic, longitudinal, linear motion of the Mini-ball cube was …

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Mean Girls Or Bad Girls: Expressions Of Conflict And Aggression By Black And White Female Siblings On Family Sitcoms, Akilah Sharifa Somersall Jan 2018

Mean Girls Or Bad Girls: Expressions Of Conflict And Aggression By Black And White Female Siblings On Family Sitcoms, Akilah Sharifa Somersall

Electronic Theses and Dissertations 2010 - 2019

This thesis examines the expression of anger and aggression in interactions of 6 black and 4 white female siblings on family sitcoms from the 1980s, 1990s and the 2010s. The interactions were examined to determine whether black girls on TV sitcoms were depicted as more conflictual than their white counterparts, whether the content of the portrayals of black girls differed from white girls based on racialized gender stereotypes related to female anger and aggression, whether these depictions changed over three eras of television ranging from the 1980s-2010s, and finally, whether birth order and relationship to the girl (family vs. non …

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Myokine Cathepsin B Expression With Exercise Training In The 3xtg-Ad Murine Model Of Alzheimer’S Disease, Hector G. Paez Jan 2018

Myokine Cathepsin B Expression With Exercise Training In The 3xtg-Ad Murine Model Of Alzheimer’S Disease, Hector G. Paez

Electronic Theses and Dissertations 2010 - 2019

This research investigated the relationship between exercise training and cathepsin B expression in the 3xTg-AD murine model of Alzheimer’s disease. 3xTg-AD mice were assigned to control (Tg, n=10), aerobic training (Tg+AT, n=10), or resistance training (Tg+RT, n=10). RotaRod peak latency and grip strength were assessed as preand post-measurements. Skeletal muscle was collected after training and analyzed for cathepsin B protein. Tg+RT showed greater grip strength than Tg and Tg+AT at posttesting (p ≤ 0.05). Only Tg+AT showed an improvement in RotaRod peak latency (p ≤ 0.05). Gastrocnemius weight was greater in Tg+RT compared to Tg (p ≤ 0.05), and no …

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Movement And Habitat Use Of Whitespotted Eagle Rays, Aetobatus Narinari, Throughout Florida, Breanna Clarice Degroot Jan 2018

Movement And Habitat Use Of Whitespotted Eagle Rays, Aetobatus Narinari, Throughout Florida, Breanna Clarice Degroot

Electronic Theses and Dissertations 2010 - 2019

Elasmobranchs play ecologically important roles in coastal environments. Unfortunately, the basic distribution and movement patterns of these species, particularly rays, remain relatively unknown. This is especially true for the Whitespotted Eagle Ray (Aetobatus narinari), a protected species in Florida with poorly described migratory and habitat use patterns. I employed a combination of acoustic telemetry techniques to reveal multi-scale spatial patterns of A. narinari around Florida. Movement patterns between the east and west coast individuals were distinct; a majority of west coast tagged A. narinari exhibited migratory or transient behavior while most east coast tagged individuals remained resident in the Indian …

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On The Nature Of Neural Causality In Large-Scale Brain Networks: Foundations, Modeling And Nonlinear Neurodynamics, Michael Mannino Jan 2018

On The Nature Of Neural Causality In Large-Scale Brain Networks: Foundations, Modeling And Nonlinear Neurodynamics, Michael Mannino

Electronic Theses and Dissertations 2010 - 2019

We examine the nature of causality as it exists within large-scale brain networks by first providing a rigorous conceptual analysis of probabilistic causality as distinct from deterministic causality. We then use information-theoretic methods, including the linear autoregressive modeling technique of Wiener-Granger causality (WGC), and Shannonian transfer entropy (TE), to explore and recover causal relations between two neural masses. Time series data were generated by Stefanescu-Jirsa 3D model of two coupled network nodes in The Virtual Brain (TVB), a novel neuroinformatics platform used to model resting state large-scale networks with neural mass models. We then extended this analysis to three nodes …

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Morphologic Evolution And Alongshore Variability Of Two Nourishment Projects In Southeast Fl, Usa, Thomas A. Shahan Jan 2018

Morphologic Evolution And Alongshore Variability Of Two Nourishment Projects In Southeast Fl, Usa, Thomas A. Shahan

Electronic Theses and Dissertations 2010 - 2019

For the last several decades, beach nourishment has been a widely implemented erosion mitigation strategy along many developed coastlines. Measuring subsequent patterns of erosion and accretion can help elucidate local sediment transport trends, improve time scale predictions of profile equilibration, decrease renourishment intervals, and adjust future engineering design of nourishments. This study evaluates the morphologic evolution of two beach nourishment projects (e.g., characterized as a full and partial nourishment) at the same location in Boca Raton, Florida using time series beach profiles, surface sediment samples, and wave data. More than 85% of sediment volume was retained within the full nourishment …

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Non-Separable Superpositions Of Complex Phase Front And Polarization States In Classical-Singular And Quantum-Entangled Optics, Behzad Khajavi Jan 2018

Non-Separable Superpositions Of Complex Phase Front And Polarization States In Classical-Singular And Quantum-Entangled Optics, Behzad Khajavi

Electronic Theses and Dissertations 2010 - 2019

The angular momentum of light originates from two sources: one is the spin angular momentum (SAM) of individual photons, which is related to the polarization of light and the other is the orbital angular momentum (OAM) associated with helical wavefront of the light if it is helically phased (complex phase front). A beam of light that is composed of photons possessing both OAM and SAM states can be used in different areas of study such as rotating microscopic particles, interacting with nonlinear materials, investigating atom-light interactions, communication and medical imaging technologies, quantum information, quantum entanglement and etc. In this dissertation …

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Noncoding Rnas As Novel Pancreatic Cancer Targets, Amy Makler Jan 2018

Noncoding Rnas As Novel Pancreatic Cancer Targets, Amy Makler

Electronic Theses and Dissertations 2010 - 2019

Pancreatic cancer is an abhorrent malignancy with limited diagnostics and response to drug therapy. It is believed that noncoding RNAs (ncRNAs) will further the understanding behind the mechanisms of pancreatic cancer development and progression, providing a novel approach for drug development and biomarker discovery. Therefore, a database of pancreatic cancer ncRNAs was established using bioinformatics and text mining approaches. These ncRNAs were characterized for RNA expression, copy number variation, disease association, single nucleotide polymorphisms, secretome analysis, and identification of protein targets. Exosomal proteins and ncRNA identified through this study provide the basis for noninvasive diagnostic potential. Additionally, a secreted microRNA, …

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Operating Leverage’S Role In Stock Returns, The Value Premium, And The Profitability Premium: International Evidence, Benjamin A. Jansen Jan 2018

Operating Leverage’S Role In Stock Returns, The Value Premium, And The Profitability Premium: International Evidence, Benjamin A. Jansen

Electronic Theses and Dissertations 2010 - 2019

This dissertation investigates the association of operating leverage with stock returns, the value premium, and the profitability premium. Results in the first essay support the hypothesis that operating leverage is related to stock returns and the value premium across the sampled countries. Results are robust to cross-country differences, typical controls, multiple definitions of operating and financial leverage, and while controlling for the endogeneity of operating and financial leverage. This suggests that the rational explanation for the presence of the value premium lies in the underlying risk exposure of fixed asset risk of operating leverage which is expressed through the value …

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Parallel Distributed Deep Learning On Cluster Computers, Robert Kwan Lee Kennedy Jan 2018

Parallel Distributed Deep Learning On Cluster Computers, Robert Kwan Lee Kennedy

Electronic Theses and Dissertations 2010 - 2019

Deep Learning is an increasingly important subdomain of arti cial intelligence. Deep Learning architectures, arti cial neural networks characterized by having both a large breadth of neurons and a large depth of layers, bene ts from training on Big Data. The size and complexity of the model combined with the size of the training data makes the training procedure very computationally and temporally expensive. Accelerating the training procedure of Deep Learning using cluster computers faces many challenges ranging from distributed optimizers to the large communication overhead speci c to a system with o the shelf networking components. In this thesis, …

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Oral History As A Means Of Moral Repair: Jim Crow Racism And The Mexican Americans Of San Antonio, Texas, Rebecca Dominguez-Karimi Jan 2018

Oral History As A Means Of Moral Repair: Jim Crow Racism And The Mexican Americans Of San Antonio, Texas, Rebecca Dominguez-Karimi

Electronic Theses and Dissertations 2010 - 2019

Oral history’s purposes have metamorphosed from a record of lifeways and stories of the elite to a means of healing for minority communities oppressed by trauma. This dissertation focuses on the power of oral history to catalyze the restorative justice process of moral repair for victims—in this case the Mexican Americans of Texas—who were traumatized by the Jim Crow laws and practices prior to 1965. I researched the racial, socio-cultural history of Texas from its colonial days up to the Jim Crow historical era of 1876-1965 and utilized archival, legal, and historical sources for my study. Additionally, I explore theories …

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Numerical Investigation Of Finite Kuramoto Model With Time Dependent Coupling Strength, Dharma Raj Khatiwada Jan 2018

Numerical Investigation Of Finite Kuramoto Model With Time Dependent Coupling Strength, Dharma Raj Khatiwada

Electronic Theses and Dissertations 2010 - 2019

Synchronization of an ensemble of oscillators is a phenomenon present in systems of different fields, ranging from social and physical to biological and technological systems. The most successful approach to describe how synchrony emerges in these systems is given by the Kuramoto model. This model as it stands, however, assumes oscillators of fixed natural frequencies and a homogeneous all-to-all coupling strength. The Kuramoto model has been analytically discussed to address the synchronization phenomena of coupled oscillators in the thermodynamic limit (N --> ∞). However, there needs to be a modi cation to address the inevitable in uence of external fields …

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Potential Efficacy Of The Monte Carlo Dose Calculations Of 6mv Flattening Filter-Free Photon Beam Of M6™ Cyberknife® System, Taindra Neupane Jan 2018

Potential Efficacy Of The Monte Carlo Dose Calculations Of 6mv Flattening Filter-Free Photon Beam Of M6™ Cyberknife® System, Taindra Neupane

Electronic Theses and Dissertations 2010 - 2019

MapCheck measurements for 50 retrospective patient’s treatment plans suggested that MapCheck could be effectively employed in routine patient specific quality assurance in M6 Cyberknife with beams delivered at different treatment angles. However, these measurements also suggested that for highly intensity modulated MLC plans, field segments of width < 8 mm should further be analyzed with a modified (-4%) correction factor. Results of MC simulations of the M6 Cyberknife using the EGSnrc program for 2-5 millions of incident particles in BEAMnrc and 10-20 millions in DOSXYZnrc have shown dose uncertainties within 2% for open fields from 7.6 x 7.7 mm2 to 100 x 100 mm2. Energy and corresponding FWHM were optimized by comparing with water phantom measurements at 800 mm SAD resulting to E = 7 MeV and FWHM = 2.2 mm. Good agreement of dose profiles (within 2%) and outputs (within 3%) were found between the MC simulations and water phantom measurements for the open fields.

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Quantum-Resistant Key Agreement And Key Encapsulation, Angela Robinson Jan 2018

Quantum-Resistant Key Agreement And Key Encapsulation, Angela Robinson

Electronic Theses and Dissertations 2010 - 2019

We explore quantum-resistant key establishment and hybrid encryption. We nd that while the discrete logarithm problem is e ciently solved by a quantum computer using Shor's algorithm, some instances are insecure even using classical computers. The discrete logarithm problem based on a symmetric group Sn is e - ciently solved in polynomial time. We design a PUF-based 4-round group key establishment protocol, adjusting the model to include a physical channel capable of PUF transmission, and modify adversarial capabilities with respect to the PUFs. The result is a novel group key establishment protocol which avoids computational hardness assumptions and achieves key …

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Precursors Of Sexualization: Perspectives Of Mothers And Female Teachers Regarding The Influence Of The Media On 4-Year-Old Girls’ Gender Identity Development, Jennifer M. Malhoyt-Lee Jan 2018

Precursors Of Sexualization: Perspectives Of Mothers And Female Teachers Regarding The Influence Of The Media On 4-Year-Old Girls’ Gender Identity Development, Jennifer M. Malhoyt-Lee

Electronic Theses and Dissertations 2010 - 2019

The sexualization of girls is an ongoing issue that has garnered much attention in recent years, with one contributing factor, media, becoming an ever-increasing part of children’s lives. This study explored four questions: How do mothers and teachers perceive the media’s influence on young girls’ identity development? To what extent do these caregivers engage young girls in analyzing media messages? What observed behaviors of 4-year old girls indicate media’s influence? and What are caregivers interpretations and responses to these behaviors? Analyzing the perceptions of mothers and female teachers of 4-year old girls contributes to a better understanding of how girls …

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Predicting Undergraduate Student Course Success In A Lecture Capture Quantitative Methods Course, Jonathan A. Sweet Jan 2018

Predicting Undergraduate Student Course Success In A Lecture Capture Quantitative Methods Course, Jonathan A. Sweet

Electronic Theses and Dissertations 2010 - 2019

The purpose of this study was to develop a methodological approach using secondary data that researchers, faculty, and staff can utilize to assess student course performance and to identify the input and course environment factors that best predict student course success in an undergraduate lecture capture quantitative methods course. Using Astin and antonio (2012)’s Input Environment and Outcome (IEO) Model as a framework, this quantitative study examined both input variables that students bring to a course as well as the course environment factors that students experience in the course. Three secondary data sources were utilized and analyzed using descriptive and …

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Provoking Southern Christianity: Baptists, Methodists, Schisms And Slavery, Denario Kelly Jan 2018

Provoking Southern Christianity: Baptists, Methodists, Schisms And Slavery, Denario Kelly

Electronic Theses and Dissertations 2010 - 2019

This thesis examines the schisms in the antebellum Baptist and Methodist Churches regarding slavery. It was these internal ruptures in both denominations that helped influence life in the slave community. The slave narratives of Henry Bibb, William Wells Brown, Frederick Douglass and Harriet Jacobs reveal the impact the schisms had on master-slave relations and slave religious instruction. Moreover, the internal rupture in both denominations over the South‟s peculiar institution was instrumental in spawning a pro-slavery Christianity. This pro-slavery Christianity proved crucial in extending and strengthening white hegemony.

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Regionalization Of Scar Patterns On The Florida Manatee (Trichechus Manatus Latirostris) Observed At Harbor Branch Oceanographic Institute, Florida., Gomez Lauren Goldsworthy Jan 2018

Regionalization Of Scar Patterns On The Florida Manatee (Trichechus Manatus Latirostris) Observed At Harbor Branch Oceanographic Institute, Florida., Gomez Lauren Goldsworthy

Electronic Theses and Dissertations 2010 - 2019

The Florida manatee (Trichechus manatus latirostris) is native to Florida and the Indian River Lagoon. Harbor Branch Oceanographic Institute (HBOI) is located in Indian River Lagoon and is frequently visited by manatees. The Manatee Project was created in 2009 to document and photograph the manatees visiting HBOI. Analyzing photographs of 146 manatee that visited HBOI showed that a majority of the injuries sustained were caused by boats. 97% of the manatee had at least one propeller injury and 31% of the manatee had at least one skeg injury. Other non-boat related injuries seen in the images included cold stress and …

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Reproductive Development Of Female Bonefish (Albula Spp.) From The Bahamas, Cameron Alexander Luck Jan 2018

Reproductive Development Of Female Bonefish (Albula Spp.) From The Bahamas, Cameron Alexander Luck

Electronic Theses and Dissertations 2010 - 2019

Bonefish (Albula spp.) support an economically important sport fishery, yet little is known regarding the reproductive biology of this genus. Analysis of oocytes histology and sex hormone levels was conducted on wild female bonefish sampled during and outside the spawning season in Grand Bahama, Central Andros, and South Andros, The Bahamas to assess reproductive state. Bonefish are commonly found along shallow water flats, or in pre-spawn aggregations (PSA) during spawning months. 17β-estradiol levels suggest vitellogenic consistency between habitats. However, fish are more reproductively developed at PSA based on the occurrence of larger, more prevalent vitellogenic oocytes and evidence of final …

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Renascence, Roberto Rafael Navarrete Jan 2018

Renascence, Roberto Rafael Navarrete

Electronic Theses and Dissertations 2010 - 2019

My thesis body of work offers a bridge into the physical, emotional, and spiritual scarring caused by global intolerance towards the LGBTQIA+ community and oppression embedded by patriarchal power. This body of work is a collection of resurfaced history and experiences transformed physically by intentionally subverting hyper-masculine materials into knots. My objective is to deconstruct individual knotted cords that make up the fabric of my identity and reconstruct them into an installation. Renascence offers a visceral experience for the audience that aesthetically explores the body’s transformation as it heals. This thesis asserts a place within a reflective, fluid, transitional identity …

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Self-Esteem Mediates Over-Time Association From Parenting Practices To Adolescent Adjustment, Melissa J. Huey Jan 2018

Self-Esteem Mediates Over-Time Association From Parenting Practices To Adolescent Adjustment, Melissa J. Huey

Electronic Theses and Dissertations 2010 - 2019

Adverse parenting practices have adverse effects on child outcomes, ranging from lower academic success (Dornbusch, Ritter, Leiderman, Roberts, & Fraleigh, 1987) to delinquency behavior (Steinberg, Fletcher & Darling, 1994) to adjustment difficulties (Shumow & Lomax, 2009). There is considerable evidence linking poor parenting practices to increases in adolescent adjustment symptoms (e.g. Barnes, Reifman, Farrell, & Dintcheff, 2000). It is likely that there is an explanatory mechanism driving this relationship. The current study tests the hypotheses that associations between adverse parenting behaviors are both directly associated with adjustment problems, and indirectly associated with maladjustment via changes in self-views. A staggered cohort …

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Role And Regulation Of Methionine Sulfoxide Reductase (Msr) In A Model Of Oxidative Stress Tolerance: Trachemys Scripta, Melissa Reiterer Jan 2018

Role And Regulation Of Methionine Sulfoxide Reductase (Msr) In A Model Of Oxidative Stress Tolerance: Trachemys Scripta, Melissa Reiterer

Electronic Theses and Dissertations 2010 - 2019

The detrimental effects of oxidative stress caused by the accumulation of Reactive Oxygen Species (ROS) have been acknowledged as major factors in aging, senescence and several neurodegenerative diseases and conditions such as Parkinson’s disease and stroke (ischemia/reperfusion). Mammalian models are extremely susceptible to these stresses that follow the restoration of oxygen after anoxia; however, some organisms including the freshwater turtle Trachemys scripta can withstand several bouts of anoxia and repeated reoxygenation without any apparent pathology. T. scripta thus provides us with an alternate vertebrate model in which we can investigate physiological mechanisms of neuroprotection without the damaging effects that come …

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Salinity Simulation In Florida Bay With The Regional Oceanic Modeling System (Roms), Abu Bakar Siddke Jan 2018

Salinity Simulation In Florida Bay With The Regional Oceanic Modeling System (Roms), Abu Bakar Siddke

Electronic Theses and Dissertations 2010 - 2019

Understanding and resolving the water quality problems that Florida Bay has endured requires an understanding of its salinity drivers. Because salinity is the prime factor that drives estuarine ecosystem, Florida Bay’s ecosystem health depends on the correct salinity balance of the Bay. In this thesis, the Regional Oceanic Modeling System - a hydrodynamic prognostic model -was implemented on Florida Bay and it was tailored for shallow waters. Results show that the model captures most of the salinity spatial and temporal variability of Florida Bay. Furthermore, it establishes the role of the major drivers like evaporation, precipitation, and runoff on Florida …

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Seed Dispersal Of The Cocoplum (Chrysobalanus Icaco) By Gopher Tortoises (Gopherus Polyphemus) In Southeastern Florida, Carolyn J. Hanish Jan 2018

Seed Dispersal Of The Cocoplum (Chrysobalanus Icaco) By Gopher Tortoises (Gopherus Polyphemus) In Southeastern Florida, Carolyn J. Hanish

Electronic Theses and Dissertations 2010 - 2019

Gopher tortoises (Gopherus polyphemus) are keystone species mainly due to their burrow construction. Gopher tortoises can also impact the plants around them, but it is rarely quantifiable due to constraints in dispersal studies including time period and seasonality of fruit. The objective of this study was to measure the effect gut-passage has on a native Florida stone-pitted shrub, the cocoplum bush (Chrysobalanus icaco), as well as to attempt to model the relationship between the gopher tortoise and the plant using our unique field site. This study shows that gut-passage has a significant effect on the germination rate of the cocoplum, …

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Remote Labs: A Method To Implement A Portable Logic Design Laboratory Infrastructure And To Provide Access To Modern Test Equipment, Charles Perry Weinthal Jan 2018

Remote Labs: A Method To Implement A Portable Logic Design Laboratory Infrastructure And To Provide Access To Modern Test Equipment, Charles Perry Weinthal

Electronic Theses and Dissertations 2010 - 2019

This Thesis explores building low cost and reliable portable laboratory infrastructure platform for Logic Design, methods for allowing access to modern test equipment via the internet, and issues related to academic integrity. A comprehensive engineering education, per ABET, requires an equal emphasis on both lecture and laboratory components. The laboratory experience builds and establishes a foundation of skills and experiences that the student cannot obtain through any other means. The laboratory must use modern, pertinent methods and techniques including the use of appropriate tools. This is especially true when it comes to test equipment. Engineering students require and deserve training …

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Smart Adaptive Beaconing Schemes For Vanet, Mohammed Alhameed Jan 2018

Smart Adaptive Beaconing Schemes For Vanet, Mohammed Alhameed

Electronic Theses and Dissertations 2010 - 2019

Vehicular Ad hoc Networks (VANET) is a wireless ad-hoc network that includes two types of communications, Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I). In VANET there are two types of messages. The first type is the event-driven messages that are only triggered in case of emergency. The second type is the periodical messages named beacons that are exchanged frequently between vehicles. A beacon message contains basic information about the sending vehicle such as id, location and velocity. Beacons are frequently exchanged to increase the cooperative awareness between vehicles. Increasing beacon frequency helps increasing neighborhood awareness and improving information accuracy. However, this causes …

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Soft Robotics: Fiber Reinforced Soft Pneumatic Multidirectional Manipulators, Designing, Fabricating, And Testing, Mohammad Holdar Jan 2018

Soft Robotics: Fiber Reinforced Soft Pneumatic Multidirectional Manipulators, Designing, Fabricating, And Testing, Mohammad Holdar

Electronic Theses and Dissertations 2010 - 2019

Traditional robots are made from hard materials like hard plastic or metal and consist of regular rigid mechanical parts. Using those parts has some limitations, like limited dexterity and lack of flexibility. Some of these limitations could be avoided through using a compliant material, because it has higher flexibility and dexterity. It is also safer to be in direct contact with humans. This thesis studies soft pneumatic manipulators (SPMs) that move in multi degrees of freedom (MDOF), which makes them able to perform various functions. The study will include designing, fabricating, and testing three different SPMs with different taper angles …

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Spatiotemporal Patterns Of Neural Fields In A Spherical Cortex With General Connectivity, Vahid Tayefeh Jan 2018

Spatiotemporal Patterns Of Neural Fields In A Spherical Cortex With General Connectivity, Vahid Tayefeh

Electronic Theses and Dissertations 2010 - 2019

The human brain consists of billions of neurons and these neurons pool together in groups at different scales. On one hand, these neural entities tend to behave as single units and on the other hand show collective macroscopic patterns of activity. The neural units communicate with each other and process information over time. This communication is through small electrical impulses which at the macroscopic scale are measurable as brain waves. The electric field that is produced collectively by macroscopic groups of neurons within the brain can be measured on the surface of the skull via a brain imaging modality called …

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Skin Lesion Segmentation And Classification Using Deep Learning, John B. Burdick Jan 2018

Skin Lesion Segmentation And Classification Using Deep Learning, John B. Burdick

Electronic Theses and Dissertations 2010 - 2019

Melanoma, a severe and life-threatening skin cancer, is commonly misdiagnosed or left undiagnosed. Advances in artificial intelligence, particularly deep learning, have enabled the design and implementation of intelligent solutions to skin lesion detection and classification from visible light images, which are capable of performing early and accurate diagnosis of melanoma and other types of skin diseases. This work presents solutions to the problems of skin lesion segmentation and classification. The proposed classification approach leverages convolutional neural networks and transfer learning. Additionally, the impact of segmentation (i.e., isolating the lesion from the rest of the image) on the performance of the …

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Synthesis And Characterization Of Organotin Polyamine Esters From Diglycine, Paul Peter Slawek Jan 2018

Synthesis And Characterization Of Organotin Polyamine Esters From Diglycine, Paul Peter Slawek

Electronic Theses and Dissertations 2010 - 2019

This research is part of a long-term project aimed at elucidating important structural features, of both ligands and metals, that are needed to produce effective anti-cancer agents. The specific goal is the synthesis of organotin polymers containing amino acids, in this case the diamino acid diglycine. The desired materials were synthesized with percent yields ranging from 32-99%. The products were synthesized employing the interfacial polymerization technique. The polymers were then characterized utilizing the following physical characterization techniques: light scattering photometry (LS), Infrared spectroscopy (IR), nuclear magnetic resonance spectroscopy (NMR), and matrix assisted laser desorption mass spectroscopy (MALDI). Physical characterization showed …

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