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Water And Salt At The Lipid-Solvent Interface, James M. Kruczek

USF Tampa Graduate Theses and Dissertations

Lipid bilayers are important biological structures. The changes in bilayer properties are induced by the composition of the bilayer as well as the solvent. In this work, we study the effects of different molecular makeups of lipids and ionic solvents with molecular dynamics simulations to determine their effect on the bilayer interface. In particular, we look at how different carbon chain bindings affect water viscosity at the interface and allow for a less permeable bilayer. Additionally, we examine the changes to the bilayer due to the presence of the most biologically relevant salt ions. Lastly, we show how the pharmacological …

A Functional Approach To Bullying Prevention And Reduction: The Development And Evaluation Of The Functional Behavior Assessment For Bullying-Behavior In Schools (Fabb-S), Lindsey Slattery

USF Tampa Graduate Theses and Dissertations

Bullying is reported to be one of the most prevalent forms of violence in schools and has negative health, financial, and social outcomes. Researchers define bullying as (a) aggressive behavior that is (b) repeated over time and that involves (c) a real/ perceived imbalance of power. The literature on bullying is limited due to the absence of functional behavior assessment procedures and individualized interventions for bullying behaviors. Study 1 developed the Functional Assessment of Bullying Behaviors in Schools (FABB-S) tool. Following expert review 21 items were found to have content validity. Following revision, the items were reviewed by child work …

Palatable Shades Of Gender: Status Processes At The Intersections Of Race, Gender, And Team Formation, Jasmón L. Bailey

USF Tampa Graduate Theses and Dissertations

This dissertation addresses the importance of studying how race and gender influence partner selection processes of team formation. Stratified social systems influence the choice and decision-making behaviors that shape group and team formation (Hechter 1978). By testing Skvoretz’s and Bailey’s (2016) formal theory of team formation choice processes derived from expectation states theory, the dissertation aims to understand how race and gender influence a person’s choice and decision-making with respect to forming a group of problem-solving teammates. Through a quasi-experimental research design, subjects participate in simulated interactive environments in which they can select and personalize self-represented avatars and then choose …

Investigating The Proteinaceous Regulome Of The Acinetobacter Baumannii, Leila G. Casella

USF Tampa Graduate Theses and Dissertations

Acinetobacter baumannii is an opportunistic pathogen that overtime has evolved into one of the most problematic pathogens due to its ability to overcome antibiotic pressures and harshly environments in the host and hospital environments. In this context, its genomic evolution due to its capacity to acquire genes that contribute to its pathogenic and antibiotic resistance nature has been the subject of research in the last decades providing with the identification of several proteins aiding in the process of pathogenicity. Although these findings have contributed to our understanding of A. baumannii pathogenic traits, the regulatory network that control their expression are …

The Potential Of Marine Microbes, Flora And Fauna In Drug Discovery, Santana Alexa Lavonia Thomas

USF Tampa Graduate Theses and Dissertations

Natural products are chemical compounds synthesized by a living organism. These compounds have been utilized by humans from ancient times to the present for their pharmacological and biological activities. Terrestrial organisms are considered a lucrative source of bioactive compounds and chemical diversity. Within the past 60 years, the marine environment has presented its potential as a validated source for structural diversity and biologically active compounds. Technology has given access from shallow waters down to the abyssal plane for exploration and investigation of the inhabitants. Marine organisms have displayed their benefits in the pharmaceutical industry with the approval of several marine-derived …

Documenting Evolution: Comparing And Contrasting Late Mesozoic And Late Cenozoic Molluscan Patterns, Joshua Slattery

USF Tampa Graduate Theses and Dissertations

Despite major advances, evolutionary theory still has numerous shortcomings in terms of fully understanding the controls on speciation and diversification. A major factor limiting our knowledge is how biology and paleobiology view speciation from separate micro- and macro-evolutionary perspectives, respectively. Biologists typically examine microevolutionary changes within species from various biogeographic, behavioral, morphological, and genetic perspectives, which contrasts to the macroevolutionary approach of most paleobiologists, who have examined the same phenomena at larger scales but with the standpoint of time, have also concentrated on aspects of global or regional diversification (e.g., richness, origination rates, and extinction rates) over the long-term. Noticeably …

A Retrospective Study Of The Opioid Epidemic And Fentanyl Related Overdose Fatality Cases In A Florida West Coast Medical Examiner District Population, Anne Terese Powell

USF Tampa Graduate Theses and Dissertations

Opioids are scheduled by the propensity for misuse and abuse with a high rate of dependency and risk of fatal overdose. Opioids can be divided into different classes, including, natural, synthetic, and semi-synthetic. Opiates are naturally occurring and come directly from the opium poppy plant; whereas the semi synthetics opioids are chemical modifications of the poppy plant. Synthetic opioids attach to the opioid receptor but contain no part of the poppy plant. The increased variety and frequency in opioid prescriptions contributed to an opioid epidemic in the United States which is still on going.

According to the CDC, the opioid …

The Modified Synchronization Modulation Technique Revealed Mechanisms Of Na,K-Atpase, Pengfei Liang

USF Tampa Graduate Theses and Dissertations

The Na/K pumps are essential for living system and widely expressed in all eukaryotic cell membranes. By actively transporting sodium ions out of and potassium ions into the plasma membrane, Na/K pumps creates both an electrical and a chemical gradient across the plasma membrane, which are crucial for maintaining membrane potential, cell volume, and secondary active transporting of other solutes, etc.

Previously, oscillating electric field with a frequency close to the mean physiological turnover rate was used to synchronize and modulate the Na/K pump molecules. Results showed that the turnover rate of Na/K pumps can be accelerated by folds. However, …

How The Heart Became Muscle: From René Descartes To Nicholas Steno, Alex Benjamin Shillito

USF Tampa Graduate Theses and Dissertations

This dissertation addresses the heartbeat and the systems of natural philosophy that were used to explain it in the 17th century. Thus, I work in two domains of explanation. The first domain is physiology, in which William Harvey correctly ordered the heart’s systolic and diastolic motions, while René Descartes incorrectly reversed them. By looking at Harvey and Descartes’ more complete physiological models I reconsider the controversy that spun out of their divergent accounts. The second domain is the junction of physics and metaphysics, representing the frameworks of natural philosophy behind physiology. I argue that Harvey’s physiology was correct while his …

Effects Of A Spanish Phonological Awareness Intervention On Latino Preschoolers' Dual Language Emergent Literacy Skills, Xigrid T. Soto

USF Tampa Graduate Theses and Dissertations

Young children’s emergent literacy skills, particularly phonological awareness (PA) and alphabet knowledge (AK), are two of the strongest predictors of future reading skill. There is limited research evaluating the effectiveness of emergent literacy interventions on the dual language PA and AK skills of at-risk Latino preschoolers who are Dual Language Learners (DLLs). The bulk of existing interventions are conducted only in English. There is preliminary evidence supporting that DLL Latino children benefit from Spanish PA and AK instruction; however, few studies include preschool-aged children.

This study applied a multiple probe design across units of instruction to evaluate the effects of …

Autism And Inclusion In England’S Multi Academy Trust: A Case Study Of A Senior Leadership Team, Danielle Lane

USF Tampa Graduate Theses and Dissertations

In this study, I explore how the senior leadership team at an Academy Trust in England understands and operationalizes inclusion, particularly for pupils whose learning profile includes autism. England’s policies regarding inclusion appear to focus on the placement of pupils with disabilities in the mainstream provision; however, the Academy Trust, a specialist provision, suggests their school is inclusive. Gaining insight into the senior leadership team’s understandings and operationalization of inclusion will provide further understandings of inclusion in Multi Academy Trusts that are specialist provisions. In this study, I examine the understandings of eight members of a senior leadership team at …

Exploring Variations In Diet And Migration From Late Antiquity To The Early Medieval Period In The Veneto, Italy: A Biochemical Analysis, Ashley B. Maxwell

USF Tampa Graduate Theses and Dissertations

This project tests the hypothesis that the Langobard migration into the Roman/Byzantine Veneto (northeastern Italy) resulted in significant dietary changes from Late Antiquity (4-5th centuries AD) to the Early Medieval period (6-8th centuries AD). At the end of the Great Germanic Migrations in AD 568, Langobards from Pannonia entered and occupied two-thirds of the Italian peninsula. It is unclear how large these migrations were, as historical documents exaggerate mass movements; however, conservative estimates suggest they made up 8% of the areas they occupied. The degree to which the Langobards influenced economic change and subsistence in this area is poorly understood. …

Robotic Motion Generation By Using Spatial-Temporal Patterns From Human Demonstrations, Yongqiang Huang

USF Tampa Graduate Theses and Dissertations

Robots excel in manufacturing facilities because the tasks are repetitive and do not change. However, when the tasks change, which happens in almost all tasks that humans perform daily, such as cutting, pouring, and grasping, etc., robots perform much worse. We aim at teaching robots to perform tasks that are subject to change using demonstrations collected from humans, a problem referred to as learning from demonstration (LfD).

LfD consists of two parts: the data of human demonstrations, and the algorithm that extracts knowledge from the data to perform the same motions. Similarly, this thesis is divided into two parts. The …

Advanced Proteomic And Epigenetic Characterization Of Ethanol-Induced Microglial Activation, Jennifer Guergues Guergues

USF Tampa Graduate Theses and Dissertations

Microglia, the resident immune cells of the brain, can exhibit a broad range of activation phenotypes and have been implicated in several diseases and disorders of the central nervous system. Here, we described a method optimized for sensitive and rapid quantitative proteomic analysis of microglia that involves suspension trapping (S-Trap) for efficient and reproducible protein extraction from a microglial cell count expected from an individual mouse brain (~300K) while also simultaneously providing the first comprehensive proteomic characterization of a novel adult-derived mouse microglial cell line. This enhanced method was used throughout all subsequent works and was especially necessary when we …

Because My Garmin Told Me To: A New Materialist Study Of Agency And Wearable Technology, Michael Repici

USF Tampa Graduate Theses and Dissertations

Wearable technologies are being adopted in increasing numbers and the market space appears poised for continued growth in virtually all areas, from medicine, to self-quantification, to sports. While the overwhelming majority of work on wearables has been done on their medical applications and their role in shaping identity, this dissertation examines the roles that wearable technologies play on the decision-making processes in athletic contexts. Using new materialism and Actor Network Theory as lenses, I attempt to break from the Cartesian model that places human subjectivity and intentionality at the center of a rhetorical situation and, rather, allow that non-human actants …

Design Of Shape-Morphing Structures Consisting Of Bistable Compliant Mechanisms, Rami Alfattani

USF Tampa Graduate Theses and Dissertations

This dissertation presents a design concept for shape-morphing structures that have two stable configurations. The design concept defines the methodology of transforming a planar structural shape into spatial structural shape using bistable compliant mechanisms. Bistable complaint mechanisms are used to achieve structural stable configurations. The dissertation incorporating geometrical relationships for the mechanisms that form the primary structure described in step-by-step process. This dissertation implements the design layouts for designer to creating shape-morphing structures including origami. The novel contribution of the work is classified in three models. The first model presents a methodology to induce bistability behavior into an origami reverse …

Animal-Assisted Therapy To Increase Independent Reading Forchildren With Autism Spectrum Disorder, Taylor L. Butts

USF Tampa Graduate Theses and Dissertations

Animal Assisted Therapy (AAT) has become a popular intervention for the health and behavioral community as evidenced by media attention. The research that has been done on AAT has been mostly qualitative and anecdotal. The current study adds to the literature on AAT by collecting quantitative data on AAT. A multiple baseline design across three participants was used to evaluate the independent reading duration under a baseline condition (no dog present) and a non-contingent access to dog condition (which simulated how dog therapy is typically conducted). If reading did not increase during the non-contingent dog condition, a contingent access to …

Zooplankton Community Structure In The Ne Gulf Of Mexico: Impacts Of Environmental Variability And The Deepwater Horizon Oil Spill, Kate M. Dubickas

USF Tampa Graduate Theses and Dissertations

In the northeastern Gulf of Mexico, relating changes in zooplankton communities to environmental factors is crucial to understanding the marine ecosystem and impacts of perturbations such as oil spills on marine ecosystems. Zooplankton samples were collected each year between 2005–2014 in spring and summer in the vicinity of the oil spill (Deepwater Horizon) that occurred in spring 2010. Zooplankton assemblages and environmental conditions significantly differed seasonally, driven by strong variations in zooplankton at continental shelf stations, and by environmental factors including Mississippi River discharge, wind direction, temperature, and chlorophyll concentrations. Total zooplankton abundances were greatest at shelf stations, intermediate at …

“Living Creatures Of Every Kind:” An Ecofeminist Reading Of Genesis 1-3, T. G. Barkasy

USF Tampa Graduate Theses and Dissertations

This work will examine the Genesis creation narratives through an ecofeminist critical lens to illuminate the ambivalence regarding both the ecological and feminist concerns pertinent to ecofeminist criticism. While ecology and feminism are major issues in today’s social and political climates, ecofeminism and its presence in biblical scholarship is not as prevalent as one might think. When it is discussed, authors come to varying conclusions on the Bible’s stance about either nature or gender, and discussions that consciously espouse ecofeminist methodology are so far insufficient. This work utilizes the documentary hypothesis in order to examine the parallel narratives of creation …

Species Abundance, Spatial And Vertical Distributionsof Large Heteropods (Pterotracheidae And Carinariidae)In The Northern Gulf Of Mexico, Kristine A. Clark

USF Tampa Graduate Theses and Dissertations

A description of species abundance, richness and distribution, and eye size of heteropod molluscs from the families Pterotracheidae and Carinariidae in the oligotrophic ecosystem of the northern Gulf of Mexico (GOM) is described based on discrete-depth sampling protocols. The collections were comprised from two midwater sampling programs conducted sequentially after the 2010 Deepwater Horizon oil spill (DWHOS): the Offshore Nekton Sampling and Analysis Program (ONSAP, 2011) and the Deep Pelagic Nekton Dynamics of the Gulf of Mexico (DEEPEND, 2015-2018). Study materials from DEEPEND were collected during the initial five cruises of 2015-2017. These programs collected over 3,495 heteropods in two …

Weaponizing Ordinary Objects: Women, Masculine Performance, And The Anxieties Of Men In Medieval Iceland, Steven T. Dunn

USF Tampa Graduate Theses and Dissertations

This thesis unravels the deeper meanings attributed to ordinary objects, such as clothing and food, in thirteenth-century Icelandic literature and legal records. I argue that women weaponized these ordinary objects to circumvent their social and legal disadvantages by performing acts that medieval Icelandic society deemed masculine. By comparing various literary sources, however, I show that medieval Icelandic society gradually redefined and questioned the acceptability of that behavior, especially during the thirteenth-century. This is particularly evident in the late thirteenth-century Njal’s Saga, wherein a woman named Hallgerd has been villainized for stealing cheese from a troublesome neighbor. If Hallgerd were a …

Genome Size And Host Specialization In Parasites, Nicholas Theodore Ogburn

USF Tampa Graduate Theses and Dissertations

In parasites, there are several examples of changes in genome size linked to a parasitic lifestyle—with some species having greatly reduced or expanded genome sizes relative to free-living non-parasitic relatives. What is unknown is whether there is correlated evolution between genome size and host specialization, and whether there is a generalizable framework in predicting genome size evolution in parasites using their genetic architecture and host use ecology. Here, I tested whether genome size of 96 eukaryotic parasites across a wide variety of taxa correlates with host specialization, quantified by the number and phylogenetic relatedness of host species they parasitize. I …

The Effects Of A Daily Behavior Report Card Intervention: Inclusion Of A Peer Mediator Component, Deanna Canfield

USF Tampa Graduate Theses and Dissertations

Research shows that children with disabilities are more likely engage in problem behaviors and have behavioral, social, and academic deficits in a school classroom than those children without disabilities (e.g., Owens et al., 2012; Pierce, Reid, & Epstein, 2004). Daily Behavior Report Cards (DBRCs) have been found to improve disruptive behaviors, such as task refusal or calling out in class, of children with attention-deficit/hyperactivity disorder, intellectual and developmental disorders and typically developing students; however, research evaluating the efficacy of DBRCs with students with emotional and behavioral disorders (EBD) is lacking. Studies also indicate that DBRCs can be effectively implemented by …

Dna Barcoding Of Fish Eggs In The Gulf Of Mexico, Makenzie Burrows

USF Tampa Graduate Theses and Dissertations

DNA barcoding of fish eggs is a relatively new technique that enables more accurate identification of early life stages of ecologically and economically important fish species. Using DNA barcoding of individual planktonic percomorph eggs, this thesis determines putative spawning locations of neritic and oceanic fish species in the Gulf of Mexico (GoM). Surveys at 40 stations in the Gulf of Mexico showed a clear delineation of spawning sites, with neritic fish eggs generally found on continental shelves, and oceanic fish eggs found at the surface of deeper waters. However, samples collected between Florida and Cuba revealed exceptions to this trend …

Investigating Student Conceptual Understanding Of Structure And Function By Using Formative Assessment And Automated Scoring Models, Kelli Patrice Carter

USF Tampa Graduate Theses and Dissertations

There has been a call from the national community of biologists and biology educators to increase biological literacy of undergraduate students, including understanding and application of core concepts. The structure and function relationship is a core concept identified by the wider biology community and by physiology faculty. Understanding of the core concept structure and function across multiple levels of organization may promote biological literacy. My research focused on the development of formative written assessment tools to provide insight into student understanding of structure and function in anatomy and physiology.

In chapter two I developed automated scoring tools to facilitate the …

“The Most Muscular Woman I Have Ever Seen”: Bev Francisperformance Of Gender In Pumping Iron Ii: The Women, Cera R. Shain

USF Tampa Graduate Theses and Dissertations

The question of what constitutes femininity has been widely debated, not only in gender studies, but also in the broader social world. A venue for this debate is the 1985 documentary, Pumping Iron II: The Women, in which gender and femininity in particular become part of the central plot of the film when Bev Francis, a woman bodybuilder more muscular than any other competitor, enters the competition. While feminist scholars have analyzed gender and sport from a variety of interdisciplinary perspectives, little attention has been paid to female bodybuilding in particular. To fill this gap, this thesis will examine the …

Mass Shootings And Gun Sales: A Study On The Influence Of Red And Blue Power, Maria Jose Rozo Osuna

USF Tampa Graduate Theses and Dissertations

Mass shootings are one of the most discussed issues in American society. While it is evident who the main victims are, the impact of such an event reaches far beyond the lives that were directly impacted. One of the main effects mass shootings have been found to have is a spike in gun sales (Wallace, 2015; Studert et. al., 2017 ; Turchan et. al., 2017). This finding has been found time and time again by academic and non-academic researchers, and it is one of the most commonly believed ideas regarding the effects of mass shootings (Aish & Keller, 2016). The …

Model Of A Sulfur-Based Cyclic Denitrification Filter For Marine Recirculating Aquaculture Systems, Zhang Cheng

USF Tampa Graduate Theses and Dissertations

Recirculating aquaculture systems (RAS) are a type of near zero-discharge fish production system that is used to treat and recirculate aquaculture wastewater and increase the biomass stocking density in the fish tank. The RAS presented in this thesis was a marine system which was operated with two temporally independent cycles, Loop 1, a continuous loop, and Loop 2, an intermittent loop. Flow in the RAS was switched between the two loops by a solenoid valve. During the operation of Loop 1, components involved in the cycle were successively the fish tank for fish production, solids filters for solids removal and …

Estimation Of Number Of People Living In Developing Countries That Received Water From A Spring Source, Prapti Shinde

USF Tampa Graduate Theses and Dissertations

In the year 2000, 170 countries decided to stand together and solve some primary and common global problems like poor health, water, and sanitation. Obtaining access to safe drinking water is every individual’s right. The UN defines safe drinking water as “the water required for each personal or domestic use must be safe, therefore free from micro-organisms, chemical substances and radiological hazards that constitute a threat to a person's health” (UNDESA, 2014). This thesis focuses on identifying the number of people who potentially receive spring water from a piped source in rural mountainous areas. There are three significant steps and …

"I Think Of The Future": The Long 1850s And The Origins Of The Americanization Of The World, Joshua Taylor

USF Tampa Graduate Theses and Dissertations

While historians often point to the rise of the United States as a major global player and technological leader on the world stage in the 1890s and early 1900s, this study argues it was the 1850s, not the 1890s, that this transition occurred. It utilizes transnational methodologies to analyze European perceptions of the United States, American international businessmen, and new ways Americans thought and talked about their place in the world. During the 1850s, European travelers to the United States began to recognize the young nation was taking the lead in technological innovation, while American businessmen like Samuel Colt began …