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The Role Of Pulmonary Stretch Receptor Afferents In Swallow-Breathing Coordination: A Comparison Of Central Respiratory Rhythm Versus Mechanical Ventilation On Swallow In A Decerebrate Feline Model, Kofi-Kermit A. Horton

USF Tampa Graduate Theses and Dissertations

Swallowing is an essential motor act that coordinates the movement of food or saliva from the mouth through the pharynx and into the esophagus while protecting the upper airways from aspiration of those materials. Disordered swallowing, or dysphagia, results when bolus movement from the oropharyngeal phase into the esophageal phase is uncoordinated. Dysphagia directly causes or increases the risk of aspiration during swallowing in many clinical pathologies including Parkinson’s disease, Alzheimer’s disease, cerebrovascular incidents (stroke) in addition to being prevalent among the elderly population. The coordination between breathing and swallowing is mediated through the interaction of the swallow and respiratory …

Decreased Visibility: A Narrative Analysis Of Episodic Disability And Contested Illness, Melissa Jane Welch

USF Tampa Graduate Theses and Dissertations

In the United States alone, disability touches the lives of a tremendous amount of people. An increased prevalence of chronic illness, coupled with an aging population means it is likely and perhaps inevitable that everyone will experience disability in one way or another over the course of their lifetime. However not everyone who is disabled is recognized as such. Culturally, the narrative of “the healthy disabled person,” – or someone who is healthy, permanently, predictably, and visibly disabled renders many people with chronic and episodic pain, fatigue, and illness as unrecognizable as disabled. Even though increasing numbers of disability scholars …

Impact Of Recirculating Nitrified Effluent On The Performance Of Passive Onsite Hybrid Adsorption And Biological Treatment Systems, Amulya Miriyala

USF Tampa Graduate Theses and Dissertations

Approximately 25% of households in the U.S. treat their wastewater onsite using conventional onsite wastewater treatment systems (OWTS). These systems typically include a septic tank or a series of septic tanks followed by a soil absorption system. They effectively remove biochemical oxygen demand (BOD), total suspended solids (TSS), fats and grease but are not designed to remove significant amounts of nitrogen. High nitrogen loading to coastal and ground waters can be dangerous to aquatic life and public health. Hence, there is a need for advanced onsite wastewater treatment systems that can effectively remove nitrogen. Making enhanced nitrogen removal for OWTS …

Elemental Analyses Of Archaeological Bone Using Pxrf, Icp-Ms, And A Newly Developed Calibration To Assess Andean Paleodiets, Christine L. Bergmann

USF Tampa Graduate Theses and Dissertations

As a result of the quick rise of pXRF technology in archaeology, there are concerns regarding the reliability and validity of data output acquired from pXRF. In this study, I test the hypothesis that portable X-ray fluorescence (pXRF) spectrometry can provide reliable and valid results, using newly developed calibration curves, for the analysis of archaeological animal and human skeletal materials in prehistoric Peru to address hypotheses about ancient diet and trade. While pXRF systems may come with calibration software, the few if any standards and reference materials provided with the instrument rarely correspond to the vast array of archaeological materials …

Effects Of Motivation On Prospective Memory Performance In Huntington's Disease, Emily Jane Kellogg

USF Tampa Graduate Theses and Dissertations

Prospective memory (PM) refers to memory for future intentions and involves several cognitive processes including memory, executive functions, and attention. PM has been studied extensively in clinical populations in which these cognitive processes are impaired but has only recently been studied in Huntington’s disease (HD), a neurodegenerative disease of the basal ganglia that is associated with neuropsychiatric, movement, and cognitive changes. The purpose of the present study was to further examine PM in HD, as well as investigate the influence of impulsivity on PM performance and whether a monetary incentive (either reward or loss) would improve PM performance. Results of …

Early Literacy Abilities In Spanish-English Emergent Bilingual Children From Varied Dialectal Backgrounds, Antonietta Mastrota

USF Tampa Graduate Theses and Dissertations

The Hispanic population within the United States has grown to a considerable amount. The state of Florida’s population is 25% Hispanic, with projected estimates of this population continuing to grow in the coming years (Ortman & Shin, 2011). Statistics show that 28.3% of the state’s population, over the age of five, speak a language other than English at home. With this considerable number of Spanish-speakers comes the responsibility to adjust certain educational practices to best meet their needs. Literacy is an essential part of learning, and therefore assessing early literacy is an essential part to any child’s academic development.

Phonological …

Assessing Bald Cypress (Taxodium Distichum) Tree Dynamic Change In Usf Forest Preserve Area Using Mixture-Tuned Matched Filtering And Multitemporal Satellite Imagery, Yujia Wang

USF Tampa Graduate Theses and Dissertations

Wetlands are the most important and valuable ecosystems on Earth. They are called “kidneys of the Earth”. Vegetation change detection is necessary to understand the condition of a wetland and to support ecosystem sustainable management and utilization. It has been a great challenge to estimate vegetation (including bald cypress trees) coverage of the wetland because it is difficult to access directly. Satellite remote sensing technology can be one important feasible method to map and monitor changes of wetland forest vegetation and land cover over large areas. Remote sensing mapping techniques have been applied to detect and map vegetation changes in …

Validity Of A Dynamic Spanish Assessment Of Phonological Awareness In Emergent Bilingual Children, Kelsey R. Wyman Chin

USF Tampa Graduate Theses and Dissertations

Within the current decade, the number of Hispanic students has doubled so that about 16% of the total student population within the United States are Spanish-speakers (U.S. Census Bureau, 2017). With this growing population comes a responsibility to understand and implement best practices for educating these students. Because literacy is a building-block for learning, one integral part of this responsibility consists of developing valid and reliable means of assessing pre-reading skills that are predictive of later reading abilities (Lonigan, Burgess, & Anthony, 2000; Wagner, Torgesen, & Rashotte, 1994).

English-language learning children are being identified for having reading difficulties and disabilities …

Particles In Welding Fumes, Rebecca T. Williams

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to investigate whether or not differing base metals and filler wires used during welding processes contributed to differing amounts of ultrafine particles (UFP) and nanoparticles being emitted during the welding procedure. The study was also conducted to determine UFP and nanoparticle exposure in the breathing zones of the welders as well as the breathing zones of pipefitters and fire watchers, who commonly sit 6ft behind the welding arc. In order to determine if UFP and NP exposures differed with base metal and filler wire, all welding processes utilized the same welding machine for metal …

A Quantitative Analysis Of Shape Characteristics Of Marine Snow Particles With Interactive Visualization: Validation Of Assumptions In Coagulation Models, Palak P. Dave

USF Tampa Graduate Theses and Dissertations

The Deepwater Horizon oil spill that started on April 20, 2010, in the Gulf of Mexico was the largest marine oil spill in the history of the petroleum industry. There was an unexpected and prolonged sedimentation event of oil-associated marine snow to the seafloor due to the oil spill. The sedimentation event occurred because of the coagulation process among oil associated marine particles. Marine scientists are developing models for the coagulation process of marine particles and oil, in order to estimate the amount of oil that may reach the seafloor along with marine particles. These models, used certain assumptions regarding …

Diversity Of Ssdna Phages Related To The Family Microviridae Within The Ciona Robusta Gut, Alexandria Creasy

USF Tampa Graduate Theses and Dissertations

The gut microbiome is a complex ecosystem of bacteria, viruses, and fungi that strongly influences animal health. The bacterial component, for example, contributes orders of magnitude more gene products to host physiology than the host genome; thus, changes to the composition of these bacterial communities can have profound influences on the health of the animal. By infecting and lysing their hosts, viruses (particularly viruses infecting bacteria or phages) can affect critical functions in these environments, yet the consequences of these infections remain to be fully described. Most studies investigating gut viromes to date have focused on double-stranded DNA (dsDNA) phages …

Therapeutic Modulation Of Alzheimer’S Disease With Biological (Hucbs) And Pharmacological (Lispro) Approaches, Md Ahsan Habib

USF Tampa Graduate Theses and Dissertations

Dementia is the top global public health threat of the twenty first century. Within the dementia spectrum, Alzheimer’s disease (AD) is the most common type of dementia that occurs with aging and accounts for about 60% - 80% of diagnosed cases. But currently available discoveries failed to develop disease-modifying therapies for all patients living with AD. Recent discoveries can only partially slow down cognitive decline in a small subset of patients with limited effectiveness. The heterogeneity and complexity of the pathophysiology of AD indicate that a single drug approach may not be sufficient to prevent disease onset and progression. Human …

The Nutrition Transition Among The Andean Kichwas Of Ecuador, Vanessa Alicia Chee

USF Tampa Graduate Theses and Dissertations

The nutrition transition is a global phenomenon in which diets have become increasingly westernized and processed while lifestyles have shifted from labor intensive to sedentary, largely on account of the advent of technology, globalization n and urbanization. Despite the prevalence of this phenomenon, very little is known regarding how the nutrition transition has affected the risk of comorbid chronic diseases among indigenous Kichwas communities in Ecuador. Aims of this study are : 1) Identify specific health outcomes (such as diabetes, hypertension, and high cholesterol) associated with the lifestyle risk factors of the nutrition transition among the Andean Kichwas indigenous population; …

Chemical Investigation Of Bioactive Marine Extracts, Selam Hagos

USF Tampa Graduate Theses and Dissertations

Natural products have been a fundamental source of medicinal scaffolds for decades; with sixty percent of marketed drugs. Many synthetic chemists are focused on synthesizing potent and nontoxic compounds for pharmaceutical targets, however, nature is still proving to be a source of new bioactive compounds. Produced by the host organism for defense, reproduction and communication, secondary metabolites also demonstrate promising bioactivity against human pathogens. Hence, natural product chemists continue their quest for new leads.

As a continuation of these efforts, this thesis attempts to explore fungi and sponges for new chemistry, and ultimately, new drug candidates. Antarctica is largely untapped; …

Hybridizers And The Hybridized: Orchid Growing As Hybrid "Nature?", Kellie Petersen

USF Tampa Graduate Theses and Dissertations

Orchid growing is a hobby that includes not only acquiring and caring for orchids, but also learning about the diverse care requirements of various orchids, attending meetings of orchid groups, having one’s orchids evaluated by American Orchid Society judges or being a judge, or even creating hybrids. In this way, orchid hobbyists compose a distinctive subculture (Hansen 2000). Yet the activity of orchid growing also forms a nexus between the non-human and the human, two categories that are often constructed as an opposing binary. This thesis focuses on how orchid growing represents both the embedded, institutionalized characteristic of the binary …

Evaluating Video Modeling To Teach Job Seeking Skills: Composing A Professional Email, Scott A. Fontechia Ii

USF Tampa Graduate Theses and Dissertations

Within the disabilities community, individuals with an Autism Spectrum Disorder (ASD) diagnosis consistently have some of the most detrimental employment related statistics. To address this issue, this study evaluated video modeling, an evidence-based procedure, in teaching professional emailing skills to individuals diagnosed with ASD when applying for a job. Results of the study support video modeling research as an effective teaching tool. Significant skill acquisition, in composing a professional email, occurred across all participants. Seventy-five percent of participants concluded the study at mastery level. Implications of this study are immediately impactful on the ASD community as a new evidence-based transition …

Raptors And Humans: Exploring Alternative Therapies In Non-Clinical Environments Using Birds Of Prey, Kaleigh Hoyt

USF Tampa Graduate Theses and Dissertations

This study aims to deconstruct current conceptions about animal-assisted interventions by investigating relationships between human beings and birds of prey. Interactions between birds of prey, or “raptors,” provide novel cases from which to reexamine failed attempts to provide empirical data in support of alternative therapies. Previous research addressing the efficacy of animal-assisted interventions is simply not robust enough to be considered a feasible treatment option by medical professionals. By extension, models of self-regulation in psychology are often presented using reductionist models and oversimplified therapeutic outcomes. Taken together, raptor-human relationships help to highlight the shortcomings of each, as well as potential …

Pre-Service Teacher Micro-Hegemonic Construction Of Literacy Teacher Identity, Brian M. Flores

USF Tampa Graduate Theses and Dissertations

This dissertation presents findings from a qualitative discourse analysis study of three pre-service teachers enrolled in the Urban Teacher Residency Partnership Program (UTRPP); a clinical teacher preparation setting at a major southeastern university. UTRPP is a full-time teacher preparation program that focuses on university student achievement through embedded coursework and provides preservice teachers (PSTs) with the opportunity to work with a content coach. Through coaching cycles, these PSTs work one-on-one with a literacy content coaches to enrich their teaching experiences and connect theory to practice through content coaching cycles. A content coaching cycle consists of a pre-conference, video-recorded observation of …

Evaluation Of A Hierarchal Training Model For Group Home Staff, Elizabeth Marie Lynch

USF Tampa Graduate Theses and Dissertations

Direct-care staff working with individuals with developmental disabilities (DD) are frequently exposed to challenging behavior from residents and expected to respond correctly to challenging resident behavior, but often receive insufficient training due to lack of resources and high staff turnover (e.g., Collins, 2012; Collins, Higbee, & Salzberg, 2009; Haberlin, Beauchamp, Agnew, & O’Brien, 2009; Pelletier, McNamara, Braga-Kenyon, & Ahearn, 2010). Training methods such as Behavioral Skills Training (BST) are highly intrusive and require high amounts of resources (e.g., Parsens, Rollyson, & Reid, 2012). Research suggests technological based alternatives are more cost effective, decreases training time and response effort from management, …

Effects Of Body Temperature And General Anesthetics On Intraocular Pressure In Rats, Aditi Pillai

USF Tampa Graduate Theses and Dissertations

Ocular hypertension has been identified as the fundamental risk factor in glaucoma which is the leading cause for irreversible blindness in the world. Understanding the different factors that affect IOP is of utmost importance in clinical management as IOP is considered as the fundamental factor in assessing the efficiency of glaucoma medications. Several studies have attempted to assess factors that could affect IOP including age, body position, blood pressure, anesthetics commonly used during eye operations, etc. However, in most of these studies IOP is measured under anesthesia using rodent models and these anesthetics could affect the IOP measurements directly or …

Sustainable Production Of Bio-Based Succinic Acid From Plant Biomass, Enlin Lo

USF Tampa Graduate Theses and Dissertations

Succinic acid is a compound used for manufacturing lacquers, resins, and other coating chemicals. It is also used in the food and beverage industry as a flavor additive. It is predominantly manufactured from petrochemicals, but it can also be produced more sustainably by fermentation of sugars from renewable feedstocks (biomass). Bio-based succinic acid has excellent potential for becoming a platform chemical (building block) for commodity and high-value chemicals.

In this study, we focused on the production of bio-based succinic acid from the fiber of sweet sorghum (SS), which has a high fermentable sugar content and can be cultivated in a …

Ecophysiology Of Oxygen Supply In Cephalopods, Matthew A. Birk

USF Tampa Graduate Theses and Dissertations

Cephalopods are an important component of many marine ecosystems and support large fisheries. Their active lifestyles and complex behaviors are thought to be driven in large part by competition with fishes. Although cephalopods appear to compete successfully with fishes, a number of their important physiological traits are arguably inferior, such as an inefficient mode of locomotion via jet propulsion and a phylogenetically limited means of blood-borne gas transport. In active shallow-water cephalopods, these traits result in an interesting combination of very high oxygen demand and limited oxygen supply. The ability to maintain active lifestyles despite these metabolic constraints makes cephalopods …

"I'Ve Never Had That": An Exploration Of How Children Construct Belonging And Inclusion Within A Foodscape, Olivia M. Fleming

USF Tampa Graduate Theses and Dissertations

American consumer culture is often depicted as competitive and based on the acquisition of capital and status through goods or experiences. To date, researchers commonly exclude children from this conversation and therefore fail to wholly assess the impact consumer culture has on one’s choices or behavior. This study adds to a growing body of literature exploring the experiences and agency of children within the broader consumer culture by examining how marginalized children from a lower socioeconomic background use food as a resource for belonging among peers. Observation and interview data collected during designated lunch and snack times at a summer …

Ripple Effects Of The Belo Monte Dam: A Syndemic Approach To Addressing Health Impacts For The Downstream Community Of Gurupá, Cynthia A. Pace

USF Tampa Graduate Theses and Dissertations

This dissertation examines the public health impacts of a large dam project on a downstream community using the framework of Syndemic Theory. The particular focus is the Belo Monte Dam, located in the Brazilian Amazon, and its impact on the community of Gurupá, Pará. At the present time the Belo Monte Dam, which is nearing completion, stands out in scale as being the world’s third largest dam complex. Gurupá is a community well known (and well-studied) in the social science literature as Amazon Town. The aims of this study are to assess the pre-existing public health of Gurupá, as well …

Behavior Change For Children Participating In Parent-Child Interaction Therapy: A Growth Curve Analysis, Kayla Larosa

USF Tampa Graduate Theses and Dissertations

Disruptive behavior disorders including Attention-Deficit/Hyperactivity Disorder (ADHD), Conduct Disorder (CD), and Oppositional Defiant Disorder (ODD), are listed among the most common reasons youth are referred for mental health services (Centers for Disease Control & Prevention [CDC], 2016b; Kazdin, Mazurick, Siegel, & 1994). Parent-Child Interaction Therapy (PCIT) is one intervention that has been found to reduce clinically significant levels of disruptive behavior. The purpose of the current study was to determine the form of change, typical change trajectory, and individual variation in change for disruptive behavior across the two phases of PCIT; the Child-Directed Interaction (CDI) and Parent-Directed Interaction (PDI) phases. …

Synthesis, Oxidation, And Distribution Of Polyphenols In Strawberry Fruit During Cold Storage, Katrina E. Kelly

USF Tampa Graduate Theses and Dissertations

Plants inherently produce polyphenols (i.e., antioxidants) as a response to reduce oxidative stress caused by abusive environmental pre- and postharvest conditions. These antioxidants, as well as vitamin C, are present in considerable levels in strawberries; however, excessive oxidative stress brought on by improper postharvest handling conditions can reduce the levels of antioxidants in the fruit and shorten the shelf-life of strawberries. Nevertheless, it may be possible to utilize strawberry’s naturally occurring polyphenols to reduce postharvest stress and extend their shelf life. The polyphenolic profile has been previously investigated in several strawberry cultivars, however no studies have determined the unique polyphenolic …

Caregiver Perception And The Role Of Seasonality In Under-Five Childhood Diarrhea Incidence In Svay Rieng Province, Cambodia, Brian S. Wells

USF Tampa Graduate Theses and Dissertations

Diarrheal disease has long been known to be a burden to children worldwide. Although child mortality rates as a result of diarrhea have decreased over the past two decades, overall diarrhea incidence has remained relatively stable. In Cambodia, diarrhea was the third most prevalent outpatient diagnosis for children under five in 2012, with a reported incidence rate of 12 per 100 children, up from 7 per 100 children in 2008 (Ministry of Planning Cambodia, 2012). Cambodia is an agricultural country with 80% of the population living in rural areas (National Institute of Statistics Ministry of Planning, 2013). Many are also …

Regulatory Methodology And Unmitigated Wetland Loss In Southwest Florida, Kathleen B. Castor

USF Tampa Graduate Theses and Dissertations

This research used Geographical Information System (GIS) data to estimate the acreage of wetland loss due to small-scale activities (taking into account exempt, permitted, and unauthorized activities) in the Southwest District of the Department of Environmental Protection (DEP) between 2006 and 2011 and compared that net loss with the unmitigated wetland net loss that DEP documented during that time for authorized activities and violations that were discovered. The comparison allowed an estimation of the extent of undocumented small-scale unmitigated wetland loss that occurred during those six years. DEP records show that 88% of non-compliance cases remain unresolved, and the net …

Understanding Agricultural-Land Conservation From The Perspective Of Landowners In Franklin County, Massachusetts, Rocio Lalanda

USF Tampa Graduate Theses and Dissertations

What motivates agricultural-land owners to use conservation easements? As these legal tools have become a popular strategy for private land conservation in the U.S., a growing body of literature is examining how and why landowners conserve their properties through conservation easements. This research project expands upon environmental, geographical and rural land development literature through a qualitative fieldwork study of 34 private, conservation landowners associated with the Franklin Land Trust, a nonprofit conservation organization in western Massachusetts. The study identifies a broad range of environmental, social, spiritual and financial motivations for agricultural-land owners to conserve their properties, and indicates that for …

Framework Integrating Climate Model, Hydrology, And Water Footprint To Measure The Impact Of Climate Change On Water Scarcity In Lesotho, Africa, John W. Pryor

USF Tampa Graduate Theses and Dissertations

Water scarcity is a problem that will be exacerbated by climate change. Being able to model the effect of climate change on water scarcity is important to effectively plan the use of future water resources. This research integrated the Soil and Water Assessment Tool (SWAT), climate model, and water footprint analysis to measure the impact of climate change on future water scarcity. This was achieved through two objectives. The first objective was to create a modeling framework that links the output from climate model to SWAT and combined streamflow outputs from SWAT with water footprint analysis to measure how climate …