Digital Commons Network^™

Puruhá Fashion As Aesthetic Sovereignty: Identity Making And Indigenous Dress In Ecuador, Anaïs M. Parada

Theses and Dissertations

Puruhá fashion designers, vendors, and sellers have used their cultural heritage to create an emerging dress market that is both locally productive and nationally disruptive. These entrepreneurs have combined traditional dress with contemporary elements to create a new style that is distinctly recognizable as Puruhá, and thus acts as both a cultural and an individual brand. In a nation-state that offers its Indigenous people tokenism and concessions that don’t otherwise challenge the status of existing governmental and legal systems, having control over one’s own narrative through branding is a revolutionary act. In fact, the fight for economic autonomy against state …

Advanced Geometric Analyses In Vascular Disease And Interventions, Dara Ahmadi Azar

Theses and Dissertations

The central function of the vascular system is the transportation and distribution of blood throughout the body. Occurrence of various forms of vascular disease, in which this central function is compromised, is associated with high mortality and morbidity rates. Vascular disease is an active and multifactorial process causing changes in local hemodynamics and blood vessel wall mechanics. The work presented here aims to advance the current knowledge on the role of local geometrical parameters in vascular disease and endovascular intervention modalities. In our first set of studies, we develop a computational framework to understand the role of aortic geometry in …

The Use Of Polymer-Coated Magnetic Nanoparticles For Amelioration Oil Toxicity And Enhancement Microbial Remediation, Amjed Alabresm

Theses and Dissertations

Oil spills from different sources such as natural seeps, waste waters, runoffs and accidental oil spills can have serious effects on the environment while also resulting in potentially major economic damage. Due to the harmful effects of crude oil components on ecosystems, a rapid response to sequestrate oil is required to minimize any resulting environmental impact. Currently used oil removal methods, in addition to their advantages, also have severe limitations. New techniques have been developed including nanotechnology to address these limitations. A new type of nanoparticle (NP), composed of polyvinylpyrrolidone (PVP) coated iron oxide (magnetite), has been successfully used to …

The Utility Of Using Virtue Locales To Explain Criminogenic Environments, Hunter Max Boehme

Theses and Dissertations

Place-based criminology has a long history of examining the potential causes and correlates of criminogenic environments. This line of scholarship has been able to establish that crime, levels of social guardianship, and racial/ethnic groups are unevenly distributed throughout space. Routine activity theory and environmental criminology are two prominent explanations of the causes of criminogenic environments. Specifically, the crime generator and crime attractor scholarship (Brantingham & Brantingham, 1995) has found recent success uncovering which certain land uses that may be “risky facilities” (e.g., pawn shops, payday lenders, bars). However, these paradigms have yet to discover which businesses are crime-reducing and an …

Motivating Critical Thinkers In Fourth Grade Science: Action Research Promoting 21st Century Skills Through Technology Integrated Project-Based Learning., Diane Lawson

Theses and Dissertations

The purpose of this action research was to evaluate the integration of technology with project-based learning to determine its effect on critical thinking, science content knowledge, and motivation for science learning for fourth grade students. There is increased motivation for student-centered learning environments that engage students in critical thinking, motivating students to learn in active ways that relate to the real-world applications. Project-based learning is based in constructivist learning theory, where students construct knowledge through active learning strategies. This research explored three questions related to increasing science content knowledge, critical thinking skills and motivation to learn science content through the …

Motor Competence And Quality Of Life In Youth With Cancer And Visual Impairments, Emily N. Gilbert

Theses and Dissertations

This dissertation is comprised of a systematic review of the literature and two descriptive analytic studies, for a total of three studies. The overall purpose of this dissertation was to examine the motor competence of youth with pediatric cancers, a visual impairment (VI), and VI sequela of cancer (VISC), and to explore if motor competence and other variables in the physical domain predict overall health-related quality of life (HRQoL).

The purpose of Study 1 systematic review of literature was to explore and describe the motor competence of pediatric cancer patients and survivors in comparison to peers without cancer and to …

Natural Reed Enhancement: Establishing The First Universal Reed Break-In Process Through Hydro-Stabilization, Steven Isaac Christ

Theses and Dissertations

Reed players know the favorable sound of their cane does not last. Furthermore, students and educators who lack the reed pedagogy necessary to achieve any longevity and consistency suffer financially. In this study, a hydro-stabilization methodology is tested to analyze the systematic compression of parenchymatic cells within clarinet reeds. By compressing the parenchymatic cells of the cane, this project proposes that saliva will saturate the reed at ineffective/inefficient rates compared to fresh, non-stabilized reeds. 1,836 data points, collected from 17 reeds, comprised the overall study; 324 data points, collected from three reeds, represented the control group; and the remaining 1,512 …

Dynamics Of The Loop Current System And Its Effects On Surface And Subsurface Properties In The Gulf Of Mexico, Richard James Brokaw

Theses and Dissertations

Surface circulation in the Gulf of Mexico is dominated by the Loop Current System (LCS), including the Loop Current (LC) and its associated eddies. The Gulf of Mexico (GoM) also displays long-term surface gradients of temperature and salinity due to climatological features including the intrusion of warm, saline waters from the Caribbean Sea and the seasonal deposition of freshwater from the Mississippi River System caused by seasonal increases in snow melt and precipitation over the watershed. This research aims to increase the understanding of the LCS through the investigation of its relationship with these surface gradients. A classification system of …

Development, Validation, And Application Of A Novel Method To Separate And Quantify Silver Intracellular Uptake In Pseudomonas Aeruginosa, Mohammed A. Othman

Theses and Dissertations

Silver nanoparticles (AgNPs) have attracted tremendous attention as a potential broadspectrum antimicrobial agent to overcome multidrug resistant (MDR) infections. However, a comprehensive understanding to AgNPs bactericidal mechanism of action and the relative role of particulate versus ionic Ag in AgNPs antibacterial activity is lacking but essential for their optimization for potential medical applications. Therefore, a novel method to separate and quantify Ag internalization in P. aeruginosa was developed and validated through multimethod approach. The methods used were optical density at 600 nm (OD600), LIVE/DEAD staining, transmission electron microscopy (TEM), and sorbed Ag liberation assays. After optimizing the method, it was …

An Overlay Architecture For Pattern Matching, Rasha Elham Karakchi

Theses and Dissertations

Deterministic and Non-deterministic Finite Automata (DFA and NFA) comprise the fundamental unit of work for many emerging big data applications, motivating recent efforts to develop Domain-Specific Architectures (DSAs) to exploit fine-grain parallelism available in automata workloads.

This dissertation presents NAPOLY (Non-Deterministic Automata Processor Over- LaY), an overlay architecture and associated software that attempt to maximally exploit on-chip memory parallelism for NFA evaluation. In order to avoid an upper bound in NFA size that commonly affects prior efforts, NAPOLY is optimized for runtime reconfiguration, allowing for full reconfiguration in 10s of microseconds. NAPOLY is also parameterizable, allowing for offline generation of …

Circulation Changes In The Arctic Ocean And Subarctic Seas And Their Connections To The Global Ocean And Climate, Rachel Elizabeth Nichols

Theses and Dissertations

Salinity and freshwater fluxes are important tools for monitoring the amount of freshwater entering and exiting the Arctic Ocean. Satellite-derived salinity provides a way to study surface advective freshwater fluxes; however, sea ice contamination, among others, remains an obstacle in the accuracy and reliability of these measurements. In this study, salinity and surface freshwater fluxes are calculated using NASA’s Soil Moisture Active Passive (SMAP) and the ESA’s Soil Moisture Ocean Salinity (SMOS), Argo, and the European Centre for Medium-Range Weather Forecast’s Ocean Reanalysis version 4 (ORAS4). ORAS4 compares well to Argo in the subarctic seas and is used for comparison …

Bacterial Water Quality Monitoring As Citizen Science In Congaree National Park, South Carolina, Shea Mccarthy

Theses and Dissertations

Congaree National Park aims to preserve its natural and cultural resources while protecting these benefits for current and future enjoyment. Hydrologic features make up a large portion of the park and attract visitor recreation. There are several known sources of pollution that enter these waterways, mainly from upstream sources of waste discharge. The national park and its surrounding areas hold great ecological significance, however, there are many threats to the surface water quality in this area. Water quality degradation can impact the ecosystem, wildlife, and visitor experience. This project specifically considers exposure to fecal contamination in surface waters from upstream …

New Approaches To Understanding Mjo Dynamics, Casey Shoup

Theses and Dissertations

The Madden-Julian Oscillation (MJO) is a highly air-sea coupled phenomenon and is the dominant mode of intraseasonal variability in the tropics. It is easily discernible in satellite-derived sea surface salinity (SSS), which varies as a direct result of MJO precipitation from the convectively active to suppressed phases. Negative (positive) SSS anomalies are associated with the active (suppressed) phase of the MJO. We find that all three available satellite salinity missions (ESA’s Soil Moisture Ocean Salinity (SMOS); NASA’s Aquarius/SAC-D, and NASA’s Soil Moisture Active Passive (SMAP)) are capable of capturing the MJO SSS signal and that the near-equatorial SSS response is …

Dysregulation Of The Integrated Stress Response In Early Onset Dystonia (Dyt16) Due To Mutations In Pact, Samuel B. Burnett

Theses and Dissertations

Early onset primary dystonia 16 (DYT16) is a subtype of the neuromuscular movement disorder, dystonia. The resultant phenotypes of DYT16 consist of both agonist and antagonist muscles firing simultaneously, compromised posture and gait, as well as chronic repetitive movements. DYT16 has been shown to result from mutations in the protein activator of PKR, PACT. Under conditions of viral infection, ER stress, oxidative stress, and serum starvation, PKR phosphorylates eIF2α resulting in the attenuation of general protein synthesis. Transient eIF2α phosphorylation is favorable for cell survival, however, when prolonged leads to apoptosis. In the absence of stress, both PACT and PKR …

Exploring The Experiences And Needs Of Faculty When Implementing Active Learning At A Public Southeastern Regional University: A Mixed-Methods Approach, Michael Lampe

Theses and Dissertations

The purpose of this action research was to identify participant experiences and needs of faculty when teaching in the active learning classrooms at a public regional southeastern university. This study aimed to determine what were the experiences of faculty members who have taught in the active learning classrooms, what were the experiences of students who have taken a course in the active learning classrooms, and what are the faculty development, classroom technology, and technical support needs of faculty members who have taught in such classrooms. With the five-year Federal grant cycle ending in 2019, the university needs to create a …

Chemistry Of A Biscarborane Dithiol And Its Nickel (Ii) Complex, Tyler Hemingway

Theses and Dissertations

Neutral biscarborane dithiol and its anionic dithiolate form were successfully synthesized and structurally characterized. The C–C intracluster bond lengths were found to be responsive to the electron density on the cluster. Introduction of two thiol groups on biscarborane led to the significant increase of intracluster C–C bond lengths compared to those of unsubstituted biscarborane. Furthermore, the anionic dithiolate form had even longer C–C cluster bonds. This comparison shows electronic effect of substituents attached to carbon atoms of biscarborane on the strength of its C–C bonds. Additionally, a novel Ni complex was obtained using this dithiolate as a ligand. This complex …

Lipoprotein Discordance: Associations With Diabetes, Metabolic Syndrome, And Response To Exercise, Jonathan Joseph Pulama Kupaianaha Ruiz-Ramie

Theses and Dissertations

Purpose: To compare baseline CVD risk factor profiles among groups of individuals with discordant levels of high- and low-density lipoprotein cholesterol (HDL-C and LDL-C respectively) compared to lipoprotein particle concentration (HDL-P and LDL-P respectively) and examine the associations between lipoprotein discordance and incident type 2 diabetes mellitus (T2D) and metabolic syndrome (MetS). Furthermore, to examine the association between lipoprotein discordance and exercise induced changes in CVD risk factors.

Methods: Standard lipid panels as well as lipoprotein subclass profiles via nuclear magnetic resonance spectroscopy were measured among three previously completed studies (CARDIA cohort, HERITAGE Family Study, and HART-D study) spanning over …

Piloting A Smartphone-Based Sedentary Behavior Reduction Intervention For Adults With Overweight Or Obesity: Take A Stand 4 Health, Chelsea Larsen

Theses and Dissertations

INTRODUCTION: Previous studies have shown a relationship between sedentary behavior as an independent and novel risk factor for high blood pressure. However, most of the evidence comes from cross-sectional and experimental studies, with only a few studies examining whether blood pressure is improved in individuals participating in a behavioral intervention. None of these studies utilized mHealth approaches, which hold potential for behavioral interventions, and none have focused on individuals with hypertension as a part of their target population. Therefore, the purpose of the dissertation was to 1) Examine the efficacy of a smartphone-mediated multi-component sedentary behavior reduction intervention for individuals …

The Effects Of Racialization On Skeletal Manifestations Of Disease Among Migrants In Historic St. Louis, Missouri, Kristina M. Zarenko

Theses and Dissertations

This research investigates the biological effects of racialization on migrants in late nineteenth and early twentieth century St. Louis, Missouri. Racialization is a form of structural violence in which real or perceived physical differences contribute to the creation of hierarchical racial categories along a continuum of whiteness. German and Irish immigrants and African American migrants from the South came to St. Louis in search of economic prosperity and in an attempt to escape poverty, famine, or conflict in their places of origin. However, racialization affected each migrant group’s access to housing and employment as well as their exposure to violence. …

Circulating Calcium, Phosphorus, And Parathyroid Hormone And Aggressive Prostate Cancer In The North Carolina-Louisiana Prostate Cancer Project, Brittany Crawford

Theses and Dissertations

Prostate cancer is the most commonly diagnosed cancer among men in the United States. Despite improvements in screening, diagnostic methods, and treatment, African-American men have an increased risk of total and aggressive prostate cancer. In recent years, a growing body of evidence linking biomarkers of calcium and parathyroid hormone (PTH) to prostate cancer development has emerged. Circulating calcium, phosphorus, and PTH are homeostatically related. Prior studies linking prostate cancer and circulating calcium and PTH have produced inconclusive results, and no studies have examined the association between serum phosphorus and prostate cancer. The present study examined the relationship between circulating calcium, …

Influences On Parents’ Food Shopping For Children’S Consumption In South Carolina, Nazratun Nayeem Monalisa

Theses and Dissertations

Background: The diets of children in the United States typically do not meet dietary guidelines. Energy-dense nutrient-poor (EDNP) foods dominate children’s diets, contributing excessive energy, sugar, sodium, and fat intake. Home is the major source of children’s energy intake. Parents oversee household food purchases including foods for children.

Objectives: This research aimed to 1) identify parents’ food and beverage purchases for their household and for 6-11-year old children; 2) understand how parents made food purchase decisions by adjudicating among different values; 3) understand children’s food choice construction, strategies to influence parents for desired items, and extent of children’s influence.

Methods: …

From Cellular To Holistic: Development Of Algorithms To Study Human Health And Diseases, Casey Anne Cole

Theses and Dissertations

The development of theoretical computational methods and their application has become widespread in the world today. In this dissertation, I present my work in the creation of models to detect and describe complex biological and health related problems. The first major part of my work centers around the creation and enhancement of methods to calculate protein structure and dynamics. To this end, substantial enhancement has been made to the software package REDCRAFT to better facilitate its usage in protein structure calculation. The enhancements have led to an overall increase in its ability to characterize proteins under difficult conditions such as …

Design Of Bio-Inspired Multifrequency Acoustic Sensors And Metamaterial Energy Harvesting Smart Structures, Mohammadsadegh Saadatzi

Theses and Dissertations

Due to the limited availability and high depletion rates of nonrenewable sources of energy as well as environmental concerns, the scientific community has started to explore many alternative clean sources of energies. It is identified that civil, mechanical and Aerospace structures are always subjected to acoustic noises and vibration which could potentially be used as renewable source of energy. Roads and Industrial noise barriers are used inside industrial facilities alongside the walls, around construction pillars, nearby machinery and other equipment to separate quite work zones, protect walls, deliver extra safety and precautions while diminish sound and vibrational pressure. We hypothesized …

Theraputic Strategies For Altering The Trajectory Of Neurocognitive Impairments In Hiv-1 Associated Neurocognitive Disorders In The Post-Cart Era, Kristen Addie Mclaurin

Theses and Dissertations

The marked increase in life expectancy for individuals with human immunodeficiency virus type 1 (HIV-1), following the great success of combination antiretroviral therapy (cART), necessitates an investigation of the progression of HIV-1 associated neurocognitive disorders (HAND), and associated neural mechanisms, across the functional lifespan. Furthermore, given the persistence of HAND in the post-cART era, there remains a critical need to develop adjunctive therapeutics targeting the neural mechanisms underlying HAND. Thus, the guiding hypothesis for the present study was threefold. First, that there will be a differential progression of NCI in HIV-1 Tg and control animals. Second, that synaptodendritic dysfunction will …

The Development Of Polymer Constructs For Adipose Tissue Engineering Applications, Kendall Murphy

Theses and Dissertations

The adipose tissue functions as the body’s main energy reservoir and plays a central role in maintaining whole body energy homeostasis. The ability to modulate this tissue’s inherent endocrine and metabolic functions has promising implications in treating disease associated with adipose tissue dysfunction. This work revolves around two diseases where adipose tissue inflammation and metabolic dysfunction drive the disease, obesity and cachexia. Both diseases impact a significant population of U.S. adults and substantially reduce patient quality of life.

In this study, we first demonstrate the use of novel therapeutic platforms engineered to specifically target adipose tissue inflammation and lipid catabolism …

Nitric Oxide Expression With Age And Diet In The Arterial Wall Of Apoe Knockout Mice, Kara Cooper

Theses and Dissertations

Background: Hypertension is a dangerous condition that precedes many cardiovascular events including myocardial infarction, stroke, transient cerebral ischemic attack and symptomatic aortoiliac occlusive disease. While it is universally accepted that arteries stiffen with age, the physiological reason for this is debated. In a previous study, by Dr. Shana Roach Watson it was shown that collagen fibers re-orient themselves in a circumferential direction, resulting in increased arterial stiffness. The study hypothesized that this collagen remodeling could be a result of decreased nitric oxide production.

Methods: This study measured nitric oxide in two different ways, indirectly via Immunoperoxidase staining for eNOS and …

Flexible Regression Models For Survival Data, Ennan Gu

Theses and Dissertations

Survival analysis is a branch of statistics to analyze the time-to-event data or survival data. One important feature of survival data is censoring, which means that not all the subjects’ survival time are observed directly. Among all the survival data, right-censored data are the most common type and consist of some exactly observed survival times and some right-censored observations. In this dissertation, we focus on studying flexible regression models for complicated right-censored survival data when the classical proportional hazards (PH) assumption is not satisfied. Flexible semiparametric regression models can largely avoid misspecification of parametric distributions and thus provide more modeling …

Does Our Relationship With Nature Influence Our Argumentation Skills About Biodiversity Conservation?, Iresha Nadeeshani Jayasinghe

Theses and Dissertations

Understanding human treatment towards nature provides insight into mitigating human induced environmental issues. This study determines whether individuals’ relationships with nature (NR), emotions experienced during evidence evaluation, and conservation concern drive evaluation of arguments made about biodiversity conservation. Although we predicted that participants with strong NR would exhibit motivated reasoning, resulting in strong argument-evaluation skills as they evaluate an anti-conservation argument, we found that participants’ emotions during evidence evaluation were more predictive of their argument-evaluation skills. Further, participants with either low or high conservation concern demonstrated better argumentation skills. These findings suggest that while fostering strong relationships with nature may …

The Role Of Floating Gardens To Alter The Water Quality Of The Chicago River: Chicago, Il, Emmett Andrew Spooner

Theses and Dissertations

The pollution of heavy metals within surface water is a rising global concern. As heavy metals are transported through rivers, they can bioaccumulate through the food web, leading to harmful concentrations within waterways. In urban areas such as the city of Chicago, Illinois, the use of road salts is a concern as elevated concentrations of chloride (Cl–) can reduce surface water quality. Since surface waters can carry heavy metals and Cl– salts over a large distance, methods of in-situ phytoremediation are of growing importance. Through a pilot project, a floating garden system has been installed along a portion of the …

Using Herbicide And Planting Techniques To Restore A Native Bunchgrass To Cheatgrass Invaded Systems, Tyson Jeffrey Terry

Theses and Dissertations

This thesis explores potential seeding techiniques to limit harmful effects of preemergent herbicide on a seeded species while simultaneously reducing abudance of annual invasive grasses. The first chapter examines the use of activated carbon seed coatings and furrows to limit herbicide effect on seeds of a perrenial bunchgrass. We found that both carbon coatings and furrows mitigated some of the herbicide effects, but that only when the two techniques were combined did we observe unaffected seedling emergence, plant density, and aboveground growth. Therefore, we suggest to management that use of carbon coatings and furrows after herbicide application can likely be …