Digital Commons Network^™

Evaluating The Use Of Suas-Derived Imagery For Monitoring Flood Protection Infrastructure, Eleanor Mei Dietz

Electronic Theses and Dissertations

In the US there are approximately 33,000 miles of levees. This includes 14,500 miles of levee systems associated with US Army Corps of Engineers programs and approximately 15,000 miles from other state and federal agencies. More than 14 million people live behind levees and associated flood prevention infrastructure. Monitoring and risk assessment are an on-going process, especially during times of flood conditions. The city of New Orleans was heavily impacted by Hurricane Katrina in 2005 by storm surges and intense rainfall. The impact of the hurricane was substantial enough to cause levee failure and I-wall toppling where many of the …

Formulation Development Of Natamycin Loaded Nanoemulsion For Ocular Drug Delivery, Kanika Goel

Electronic Theses and Dissertations

Natamycin (NT), also known as Pimaricin, is predominantly used as an anti-fungal medication for the treatment of fungal infections around the eye. The goal of the present study was to formulate and optimize NT loaded nanoemulsion (NT-NE) and examine its potential application in ophthalmic drug delivery. Placebos were evaluated with respect to particle size, PDI and ZP to identify the aqueous phase and lipid phase concentrations to be carried forward with NT-NE development. NT-NE were prepared by hot homogenization and ultra-probe sonication method, using Castor oil (CO) and Miglyol 812 as liquid lipids, Tween®80 and Poloxomer 188 as surfactants. NT-NE …

Formulation Strategies To Address Physiological And Anatomical Constraints For Improved Topical Ocular Drug Delivery, Karthik Yadav Janga

Electronic Theses and Dissertations

Delivery of therapeutic molecules to the eye has been a complicated task owing to its anatomical and physiological barriers. This dissertation delineates several formulation strategies to circumvent dynamic and static constraints hampering the ocular drug delivery. Advanced vesicular systems, bilosomes and transfersomes, were prepared to improve the ocular pharmacotherapy of natamycin (NT). NT bilosomes and transfersomes were further loaded into in situ gel systems which transformed immediately to hydrogel, in the simulated tear fluid, with good viscoelastic and mucoadhesive properties.In vitro corneal transport studies confirmed the superior permeability characteristics of NT from the optimized bilosome and transfersome in situ gel …

Empirical Support For Multidimensional Treatment Foster Care (Mtfc): A Critical Review, Jennifer Marie Ladner-Graham

Electronic Theses and Dissertations

Multidimensional Treatment Foster Care (MTFC), initially intended as a treatment for chronic juvenile offenders (adolescents having multiple contacts with the juvenile justice system), was designed as an alternative to placement within group facilities. MTFC allows the adolescent to remain in the community while receiving individual and family-based interventions. These interventions are dedicated to decreasing risk factors associated with offending (e.g., poor parental supervision, association with delinquent peers, poor academic performance) and increasing protective factors (e.g., effective parenting practices, healthy relationships with supportive peers, increased school involvement). MTFC has been utilized to meet the needs of a variety of populations (e.g., …

Investigative Study Of Poly(Ionic) Liquid Incorporation In Resin Wafer Electrodeionization For Improved Specific Energy Consumption, Angela Fasuyi

Electronic Theses and Dissertations

An electrokinetic separation method known as Resin Wafer Electrodeionization (RW-EDI) is recognized as a promising technology for energy efficient desalination of brackish water. However RW-EDI is limited by an inherent drawback of its ion exchange media that prevents the largescale deployment of this technology. This research was undertaken to optimize the conventional resin wafer used in RW-EDI through the incorporation of high conducting polyionic liquids (PILs). It was hypothesized that by the changing non-conducting polyethylene binder with a PIL binder in conventional resin wafer configurations ion conductivity within the resin bed would be enhanced and could lead to an improvement …

African American Students In Physical Therapy: Enhancing Diversity, Sherry T. Colson

Electronic Theses and Dissertations

African Americans are motivated by early exposure to the profession and future expectations for their personal career path including stability work-life balance and helping others. The elimination of barriers such as finances lack of support and cultural microaggressions influences their career path. Following statistical analysis of admissions data conclusions were made that the current admissions criteria does not successfully predict first year success for any students including African American students. Lastly African American physical therapy graduates from UMMC reported excitement upon admission concerns over quotas lack of African American faculty students and physical therapists and the presence of microaggressions while …

Molecular Dynamics Study Of Sintering Behavior Of Single-Crystal, Bimetallic Core/Shell Alloy, And Intermetallic Alloy Nanoparticles, Jungmin Jeon

Electronic Theses and Dissertations

There has been rapidly growing interest in the sintering process of nanoparticles (NPs) among academia and modern industry due to their promising applications in additive manufacturing (AM) based on the overall improved properties at nanoscale. In the past decade a lot of experimental and computational work has been conducted to study the sintering process of powder materials. However there is still a significant knowledge gap in a fundamental understanding of the thermodynamics and nanostructural evolution of NPs undergoing additive manufacturing. This thesis aims to gain fundamental insights into melting behavior of different materials including single-crystal bimetallic core/shell alloy and intermetallic …

On The Relationship Between Resilience, Meaning, And Hardiness: A Bi-Factor Exploratory And Confirmatory Analysis, Lauren Weathers

Electronic Theses and Dissertations

Meaning in life, resilience, and hardiness have been conceptualized in a variety of ways. Some researchers theorize that these constructs share significant overlap. The goal of the current study was to examine how much overlap exists between these concepts. Three thousand and ten participants from a university in the Midwest and a university in the South completed measures of meaning in life, resilience, and hardiness. It was hypothesized that some items from these measures would create a unidimensional model while some items would create multidimensionality. Hypotheses that incorporated both models were important as there is disagreement within the literature with …

Decolonial Resistance In Latinx Writings From Peru To The United States: A Portfolio, Isabel Norwood

Electronic Theses and Dissertations

This collection begins with the premise that colonial relationships manifest in ways beyond exploitation of one nation by another. It relies on the decolonial theory of Walter D. Mignolo in its assumption that imbalances of power in the realms of race gender sexuality and class are fundamentally colonial. With this more expansive understanding of coloniality in mind I examine resistance to colonial exploitation in a range of texts from across the Americas. The first essay in this collection explores the role of the guinea pig in Andean food culture arguing that the continued consumption of guinea pig represents a form …

African American Students In Physical Therapy: Enhancing Diversity, Melanie H. Lauderdale

Electronic Theses and Dissertations

African Americans are motivated by early exposure to the profession and future expectations for their personal career path including stability work-life balance and helping others. The elimination of barriers such as finances lack of support and cultural microaggressions influences their career path. Following statistical analysis of admissions data conclusions were made that the current admissions criteria does not successfully predict first year success for any students including African American students. Lastly African American physical therapy graduates from UMMC reported excitement upon admission concerns over quotas lack of African American faculty students and physical therapists and the presence of microaggressions while …

Moral Agency: A Philosophical Inquiry Into Its Scientific Foundations, Makensey Sanders

Electronic Theses and Dissertations

There is a longstanding discussion of what the criteria are to distinguish science from non-science. In section one of this paper, I will focus on four demarcating criteria of a scientific theory: (1) value neutrality; (2) verifiability; (3) falsifiability; and (4) reproducibility. Keeping these criteria in mind, I will turn to the notion of moral agency (focusing on psychopathy, autism, and personal identity) and the question of whether the current way we conceptualize and research it can be deemed as scientific according to the four criteria.

In section two, I will discuss the role psychopathy and autism play in understanding …

A Computational Approach To Predicting And Understanding New Psychoactive Substances (Nps) For Developing A Database For State And Federal Crime Laboratories, Caroline Amelia Spencer

Electronic Theses and Dissertations

The object of this dissertation was to use a computational approach to predict and understand new psychoactive substances (NPS) to develop a database for state and federal crime. The primary scope of the dissertation was to better understand the interactions that take place between new psychoactive substances and their corresponding receptors. Through analysis of the interactions between the amino acids within the receptors and the NPS an understanding into the pharmacology and toxicology of these drugs can be gained. NPS such as synthetic cannabinoids fentanyl and its analogs and kratom have become more problematic for both state and federal crime …

Subverting The Patriarchal Panopticon: Challenges To Eugenics Rhetoric In The Novels Of Mccullers And Welty, Regina Marie Young

Electronic Theses and Dissertations

My thesis takes into consideration the scope of eugenics ideologies and their influence on literature specifically two mid-twentieth century authors from the U.S. South Carson McCullers and Eudora Welty. I contend that both writers engage with eugenics rhetoric challenging and subverting the prevailing ideology of the day albeit in differing ways. McCullers and Welty address different facets of eugenics rhetoric in their novels— namely the nature of “defect” and the criteria for “fitness” for “citizenship.” This thesis interrogates the ways in which these writers develop rhetorical strategies for resisting eugenics ideologies in their respective novels Reflections in a Golden Eye …

Diversification In The Neotropics – Evolution And Population Genetics Of The Armored Catfish Hypancistrus Sp. From The Xingu River, Marcella Goncalves Santos

Electronic Theses and Dissertations

The Xingu River, one of the largest tributaries of the Amazon River, is currently in peril due to the recent construction of hydroelectric dams, but little is known about the numerous fish species it supports. This dissertation focuses on three pleco catfish species belonging to the genus Hypancistrus from the Xingu River with partially overlapping distributions: H. zebra, H. sp. (L174), and H. sp. (L66/333). Chapter 1 is a bibliographic review of Amazonian freshwater fish diversity, with the goal of discussing the hypotheses of speciation mechanisms that can be tested in this system, including the relative importance of ecological adaptation …

Implementing Mass Spectrometry For The Structural And Compositional Analysis Of Proteins, Mohammad Riaz

Electronic Theses and Dissertations

Lectins are sugar-binding proteins that perform various biological functions such as cellular recognition attachments etc. Pulses the dried edible seeds of certain plants are great sources of lectins and a proteomics approach directed at lectins identification would bring substantial improvement in the lectin identification process. Lectins from nine different plant species were analyzed through SDS-PAGE and proteomics analysis. After LC-MS/MS analysis proteins were identified with protein database searches using Uniprot. Functionally uncharacterized proteins were identified with database searches were annotated with the Pfam and NCBI-CCD databases. In-vitro pharmacological screening will be carried out to assess the pharmacological effects of these …

The Efficacy And Feasibility Of Neuropsychological Services In A Primary Care Setting, Danielle Herring

Electronic Theses and Dissertations

Integrated primary care assimilates psychologists into the primary care setting, thus improving health outcomes and physician satisfaction. Neuropsychology has also begun to assimilate into primary care, as neurocognitive impairment is a correlate of many medical disorders. Subjective cognitive decline (SCD), a common complaint among older adults, is an increasingly recognized warning sign of non-normative cognitive aging. These patients typically present first to their primary care providers who may play a critical role in the early detection of cognitive impairment. Given the growing awareness about cognitive health and disability, the importance of neuropsychological assessment as a standard component of integrated care …

Selenium Vs. Sulfur: Investigating The Substrate Specificity Of A Selenocysteine Lyase, Michael Johnstone

Electronic Theses and Dissertations

Selenium is a vital micronutrient in many organisms. While traces are required for survival, excess amounts are toxic; thus, selenium can be regarded as a biological "double-edged sword". Selenium is chemically similar to the essential element sulfur, but curiously, evolution has selected the former over the latter for a subset of oxidoreductases. Enzymes involved in sulfur metabolism are less discriminate in terms of preventing selenium incorporation; however, its specific incorporation into selenoproteins reveals a highly discriminate process that is not completely understood. In this work, we add knowledge to the mechanism for selenium-over-sulfur specificity in hopes of further understanding the …

Raising Roma Voices: An Insider Examination Of American Roma Realities, Resistance, And Revaluation, Sabrina Marks

Electronic Theses and Dissertations

A vast scholarship has been dedicated to examining the discrimination racial and ethnic minorities endure in the United States. Research has also shown racial and ethnic minorities work to resist discrimination via various social processes. One ethnic minority group absent from the literature is the American Roma, more commonly known as Gypsies. Therefore, this study aimed to gain insights into the situation of the American Roma, including the discrimination they endure and the resistance tactics they employ. In-depth semi-structured interviews were conducted with 31 native-born American Roma adults during the course of this insider study. Participants reported experiencing discrimination in …

The Ecology Of Central Florida's Thief Ants (Hymenoptera: Formicidae: Solenopsis), Leo Ohyama

Electronic Theses and Dissertations

Thief ants of the genus Solenopsis are a diverse group of ants that are found in ant communities throughout the world. They have long been purported to practice lestobiosis, an interaction between small and larger-bodied ants, where small ants cryptically tunnel into larger-bodied ant nests within the subterranean environment and steal brood or eggs for consumption. Thief ants are extremely small, measuring 1-2 mm in length and many of the species within this group practice a subterranean life history, where they live the entirety of their lives exclusively belowground. Due to these key characteristics, the ecology and natural history of …

Stories Of The 3%: Foster Care Alumni Narratives Of Resilience And Postsecondary Attainment, Molly Sarubbi

Electronic Theses and Dissertations

Although education continues to be a pathway for social mobility, disparities remain in post-secondary attainment for traditionally marginalized populations such as the half-million youth in foster care (Children's Bureau, 2016). Due to multiple personal, social, and system barriers, only 46% of foster youth will earn a high school or GED diploma, and less than 3% will enroll in postsecondary education (Naccarato, Brophy & Courtney, 2010; Sarubbi, Parker, & Sponsler, 2016). Barriers impacting foster care alumni (FCA) have been widely documented, yet their narratives of resilience receive less attention. This study employs a participatory action research design in which FCA participants …

Production And Storage Stability Of High Concentrated Micellar Casein And Its Effect On The Functional Properties Of Process Cheese Products, Ahmed Hammam

Electronic Theses and Dissertations

Micellar casein is a high-protein ingredient that can be used in process cheese products (PCP) formulations. PCP is a dairy food prepared by blending dairy ingredients (such as natural cheese, protein concentrates, butter, non-fat dry milk NFDM, whey powder, and permeate) with nondairy ingredients (such as sodium chloride, water, emulsifying salts, color, and flavors) and then heating the mixture with a continuous agitation to produce a homogeneous product with an extended shelf-life. The first objective of this study was to produce a highly concentrated micellar casein (HC-MC) and evaluate its storage stability. Skim milk was pasteurized at 76°C for 16 …

Variability Of E. Coli In Streambed Sediments And Its Implication For Water Quality, Sadia Salam

Electronic Theses and Dissertations

Fecal indicator bacteria (FIB), including E. coli, are the number one cause of water quality impairments in the United States according to the USEPA. FIB are used as a predictor to identify the possible presence of pathogens in waterbodies. E. coli is a useful indicator of gastrointestinal (GI) related illnesses from contact with fresh water. While surface water is routinely monitored for water quality, streambed sediments are rarely considered as a source of FIB to the overlying water column. This study focuses on understanding the variation of E. coli concentrations in streambed sediments and the potential impact of sediment sources …

A Bioinfomatic Analysis Of Luminal And Mucosal Ileal Bacteria Colonizing Nursery Pigs Fed Different Protein Sources, Jamie L. Ortman

Electronic Theses and Dissertations

Weaning is a critical time in a young pig’s life that will greatly impact its adult growth and development. The objective of this research was to evaluate the effects of various protein sources on the bacterial composition within luminal and mucosal populations in simple and complex diets to gain a better understanding of factors influencing gut health. Weaned pigs were fed 1 of 3 simple experimental diets: 1) basic diet containing corn and soybean meal (Negative Control - NEG), 2) basic diet + fishmeal (FM; Positive Control - POS), and 3) basic diet + microbially-enhanced soybean meal (MSBM). Phase I …

Investigating The Late Woodland Climate Of Old Tampa Bay, Florida, Jaime Rogers

Electronic Theses and Dissertations

Tampa Bay and the broader Central Gulf Coast region of Florida bear evidence of site reduction and population decline during the onset of the Late Woodland period (AD 500-1000). Concomitantly, Weeden Island culture flourished to the north, while climatic instability loomed to the south. It is unclear if the site abandonments in the area between the two are related to social or cultural change, an unstable climate, or a combination thereof. Interdisciplinary research has provided evidence for climate change and sea level regression during the sixth and seventh centuries in Southwest Florida, but these variables have yet to be investigated …

Business In The Estuary, Party In The Sea: Migration Patterns Of Striped Mullet (Mugil Cephalus) Within The Indian River Lagoon Complex, Olivia Myers

Electronic Theses and Dissertations

Commercial and recreational environmental enterprises in the Indian River Lagoon (IRL), Florida supply nearly 10,000 jobs and produce $1.6 billion dollars a year in revenue. These waters contain iconic species of sportfish, including red drum, snook, and sea trout, as well as their lower trophic level prey such as snapper and mullet. Striped mullet (Mugil cephalus) are both commercially valuable as well as an indicator species for overall ecosystem health. From September to December, mullet in the IRL undergo an annual migration from their inshore foraging habitats to oceanic spawning sites. However, their actual migratory pathways remain unknown. To address …

Hydrodynamic Limitations And The Effects Of Living Shoreline Stabilization On Mangrove Recruitment Along Florida Coastlines, Christian Pilato

Electronic Theses and Dissertations

The recruitment success of mangroves is influenced by a variety of factors, including propagule availability, desiccation, herbivory, and hydraulic habitat limitations. Hydrodynamic forces (waves and currents) act as obstacles to mangrove recruitment, restricting the successful colonization of mangrove species. We evaluated the biological and physical limitations to mangrove recruitment through monthly shoreline surveys and lateral pull-tests. Surveys followed mangroves from propagule release through recruitment along the shorelines of De Soto National Memorial (Bradenton, FL), capturing differences in propagule availability and recruitment along natural areas and across differing forms of shoreline stabilization ("living shorelines" and revetments). Propagule densities were highest along …

Analyzing Pre-Inhumation Breakage Ceramics At Lamanai, Belize: A Conjunctive Approach, Ryan Enger

Electronic Theses and Dissertations

During the Terminal Classic period (9th-10th centuries A.D.), the ancient Maya at Lamanai, Belize, began to practice pre-inhumation breakage of ceramics in mortuary contexts. Previously, the custom had been to bury whole vessels with the deceased. This conspicuous shift in behavior suggests important changes in beliefs regarding the role of ceramics in death and interment at a pivotal moment in ancient Maya culture history. Despite this significant change, there has been no published research conducted specifically on these vessels. In fact, there has been no clearly delineated set of characteristics for what qualifies as a pre-inhumation breakage vessel (PBV). This …

Fear And Loathing In The Super Organism: Foraging Strategy Doesn't Change Forager Response In A Landscape Of Fear., Philip Schadegg

Electronic Theses and Dissertations

Understanding how predators impact keystone species, like ants, is very important for our understanding of ecology because of ants' importance in shaping community dynamics and ecosystem functions. In this thesis I present research investigating the role of the ant-specialized spider Anasaitis canosa in influencing the foraging behavior of four ant species (Formica pallidefulva, Odontomachus ruginodis, Pheidole obscurithorax & Solenopsis invicta). Collectively, these four species use foraging strategies exhibited by most ants. I conducted two experiments to quantify the impacts of spider predation on ant prey. The first used forty colonies of four ant species to investigate how A. canosa changed …

Metastable-State Photoacids: Synthesis, Properties, And Applications, Parth Patel

Electronic Theses and Dissertations

Reversible photochromic compounds have the ability to reversibly change its color when it absorbs photons of a particular wavelength. This process of color change is a consequence of structural changes within the compound, such as cis-trans photo-isomerization. Some examples of photochromic compounds are spiropyrans, spirooxazines, diarylethenes and azobenzenes. These compounds have been extensively studied for decades, and are used in various applications such as biomedicine, chemical sensors and harvesting solar energy. However, majority of photochromic compounds are initially activated by ultraviolet (UV) light. The use of UV light is harmful for biological applications and photo-degrade the compound over repeated use. …

Acoustic Ecology And Sound Mapping The University Of Central Florida Main Campus, Robert Clarke

Electronic Theses and Dissertations

"Acoustic Ecology and Sound Mapping the University of Central Florida Main Campus" explores the intersection of place and space, sound studies and acoustic ecology, visualization, and archives. The end result consists of a collection of "soundwalk" and stationary recordings conducted from 2016-2019 at the University of Central Florida (UCF) main campus in Orlando presented as an online Sound Map. This archive previously did not exist and provides a snapshot of the various sounds heard throughout the campus as well as a starting point and context for future research into this still-emerging field of acoustic ecology and sound studies. While the …