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Late Holocene Climate Variability From Northern Gulf Of Mexico Sediments: Merging Inorganic And Molecular Organic Geochemical Proxies, Julie N. Richey

USF Tampa Graduate Theses and Dissertations

Accurate reconstruction of natural climate variability over the past millennium is critical for predicting responses to future climate change. In order to improve on current understanding of climate variability in the sub-tropical North Atlantic region over the past millennium, a rigorous study of Gulf of Mexico (GOM) sea surface temperature (SST) variability was conducted using both inorganic (foraminiferal Mg/Ca) and molecular organic (TEX86) geochemical proxies. In addition to generating multiple high-resolution climate records, the uncertainties of the SST proxies are rigorously assessed.

There are 3 major research questions addressed: (1) What was the magnitude of GOM SST variability during the …

Evaluating The Effectiveness Of The Travel Assistance Device On The Bus Riding Behavior Of Individuals With Disabilities, Arica J. Bolechala

USF Tampa Graduate Theses and Dissertations

Independence for individuals with disabilities can be facilitated through the use of devices that have been created and adapted for these individuals. Research regarding the use of technology to afford independence to those with disabilities is growing as new devices are being created. One such device is the Travel Assistance Device (TAD) which has undergone conceptual tests to assess if the individual components of the device work as intended. The purpose of this research study was to determine whether the prompts given by the TAD would exhibit stimulus control over the participant's behavior of pulling the cord to stop the …

Characterization Of Unidentified Viruses From Florida, Jessie L. Dyer

USF Tampa Graduate Theses and Dissertations

Public Health and clinical laboratories occasionally obtain viral isolates that cannot be typed by routine methods. Therefore, the sequence-independent, single primer amplification (SISPA) technique was adapted to rapidly identify and characterize viral isolates of unknown etiology. A panel of known (West Nile virus and St. Louis encephalitis virus) and unknown viral isolates (environmental samples collected in Florida) were used to develop and refine the SISPA technique. Selectivity for viral genomic sequences was obtained through enriching viral particles by centrifugation, removal of cellular debris by filtration and removal of host genomic material by benzonase application. The SISPA method successfully amplified the …

Visionary Of Control: The Efficiency, Expertise, And Exclusion Of Alexander James Inglis, Heidi Tilney Kramer

USF Tampa Graduate Theses and Dissertations

Alexander James Inglis was the key contributor to changes enacted in education during the Progressive era. He instituted an administrative and curricular hierarchy in order to create social organization during a chaotic time in American history, thus advancing professionalism in teaching and systematizing a future workforce - teaching previously had no standards, and throngs of immigrants overwhelmed the school system. While necessary at the time, this system of centralization, homogenization, and sorting continues to result in exclusion in secondary education and middle schools. Categorization is Inglis' hallmark in his work in education, following Frederick W. Taylor's managerial practices, and he …

The Role Of Rater Motivation In Personnel Selection Validation Studies, Dan Ispas

USF Tampa Graduate Theses and Dissertations

Personnel selection validation studies are routinely conducted in contemporary organizations for selecting and placing employees. Although numerous studies have been conducted with the goal of identifying new predictors, less research was focused on the criterion side. In the current paper, across three studies and five samples, I examined the role played by rater motivation in validation studies. I proposed that rater motivation would impact criterion-related validity of various predictors, the reliability, and the variance of performance ratings. In Study 1, these hypotheses were tested in two samples with varied operationalizations of predictors and of rater motivation. In Study 2, I …

The Positive- And Negative-Right Conceptions Of Freedom Of Speech And The Specter Of Reimposing The Broadcast Fairness Doctrine ... Or Something Like It, Adam Fowler

USF Tampa Graduate Theses and Dissertations

A key theoretical debate underlying the now defunct Federal Communications Commission (FCC) regulation known as the Fairness Doctrine is conflict over what constitutes the right to freedom of speech: a positive or negative conception. Similarly, since repeal of the Doctrine, other FCC measures to uphold the “public-interest” standard in broadcasting have relied on a positive conception of speech. This thesis demonstrates the history of this debate through court cases, news reports, scholarly articles and historical documents. It then is argued that the positive-right nature of these regulations is problematic philosophically, constitutionally and practically. The positive-right conception lends itself to an …

Trials And Verdicts: Narratives Of Recollection In The Good Soldier And Lolita, Constance Elizabeth Holmes

USF Tampa Graduate Theses and Dissertations

This dissertation will apply the structure of a legal trial’s procedures to two Modernist novels: Ford Madox Ford’s The Good Soldier (1915) and Vladimir Nabokov’s Lolita (1955). These novels position themselves as renderings of legal proceedings, the written memoriam of metaphorical trials conducted by first person narrators who alternatively and simultaneously function as Plaintiff’s counsel, Defense Counsel and finally as witnesses to the events of the story. All of these personae reveal evidence and testimony presented in the forum of a trial of the central characters who recollect legal events and whose narrations develop moral questions. Thus these narrations are …

How Does Mobility Change Over Time For Older Adults, And How Are Changes Influenced By Cognitive Functioning?, Melissa Lunsman O'Connor

USF Tampa Graduate Theses and Dissertations

Mobility, which includes life space and driving behaviors, is an important functional domain for older adults (e.g., Webber, Porter, & Menec, in press). Low mobility is associated with sensory, physical, and cognitive deficits (e.g., Anstey, Wood, Lord, & Walker, 2005). However, few studies have investigated how mobility changes over time. This dissertation contains three longitudinal articles that explored mobility changes, with an emphasis on driving and cognition, among community-dwelling older adults.

The first paper investigated patterns of driving self-regulation (i.e., adjustment of driving behaviors) among control-group participants from the Advanced Cognitive Training for Independent and Vital Elderly (ACTIVE) study (N=548). …

Modeling And Analysis Of Cooperative Search Systems, Carlos A. Portilla

USF Tampa Graduate Theses and Dissertations

The analysis of performance gains arising from cueing in cooperative search

systems with autonomous vehicles has been studied using Continuous Time Markov

Chains; where the search time distributions are assumed to follow the exponential

distributions. This work proposes the use of Petri Nets to model and analyze these

systems. The Petri Net model considers two types of autonomous vehicles: a search-only

vehicle and n search-engage vehicles. Specific performance metrics are defined to

measure system’s performance. Through simulation, it is shown that the search time with

stationary targets and cues that provide exact target location follows a triangular

distribution. A methodology …

Self-Potential Response To Rainfall Changes Over Plugged And Unplugged Sinkholes In A Covered-Karst Terrain, Peter B. Bumpus

USF Tampa Graduate Theses and Dissertations

For the protection of wetland and water resources it would be beneficial to understand when collapse conduits function as recharge points to the underlying aquifer. Inexpensive, noninvasive methods to detect recharge are desirable. Previous studies show negative self-potential (SP) anomalies over sinkholes that correspond to the expected electrokinetic effects of groundwater flowing downward through a conduit. SP surveys are less labor-intensive than high-resolution 3D GPR and resistivity, and continuous long-term monitoring is possible. However, before SP surveys can be reliable indicators of flow, SP contributions from ET, conductivity changes, redox reactions, thermoelectric effects, cultural noise, and lateral flow must be …

Influence Of Misperceptions About Gay Affluence On Support For Pro-Gay Legal Reform, Vanessa E. Hettinger

USF Tampa Graduate Theses and Dissertations

The deleterious impact of negative stereotypes toward gays has been established, but less thoroughly examined are the potentially harmful effects that positive stereotypes may carry. Gay Americans lack multiple legal rights enjoyed by heterosexual citizens, yet many people do not see gays as a genuinely disadvantaged group. One possible reason for this is the popular misconception that gays are wealthier than the average American. Drawing on previous research regarding popular support for underdogs, it was predicted that, to the extent people endorsed the conception of gay affluence, they would be less likely to support legal reform benefiting gays. This hypothesis …

Modeling And Experimentation Of Micro-Scale Self-Assembly Processes, Gary Hendrick

USF Tampa Graduate Theses and Dissertations

Self-Assembly in the context of micro-scale integration refers to a developing set of techniques which exploit phenomena resulting in the spontaneous integration of micro-scale components into designed systems. Self-Assembly may be leveraged most effectively in parallel assembly processes. This thesis studies the modeling of micro-scale self-assembly processes as stochastic processes. The researchers propose that self-assembly processes may be modeled as Markov chains. In order to develop these models a Self-Assembly test system was created and trials were conducted using this system. Initial tests into the hypothesis that variables contributing to the transition probabilities include the kinetic energy of the assembly …

Fluorescence Molecular Tomography: A New Volume Reconstruction Method, Stephen Joseph Shamp

USF Tampa Graduate Theses and Dissertations

Medical imaging is critical for the detection and diagnosis of disease, guided biopsies, assessment of therapies, and administration of treatment. While computerized tomography (CT), magnetic resonance imaging (MRI), positron emission tomography (PET), and ultra-sound (US) are the more familiar modalities, interest in yet other modalities continues to grow. Among the motivations are reduction of cost, avoidance of ionizing radiation, and the search for new information, including biochemical and molecular processes. Fluorescence Molecular Tomography (FMT) is one such emerging technique and, like other techniques, has its advantages and limitations. FMT can reconstruct the distribution of fluorescent molecules in vivo using near-infrared …

A Survey Of The Development Of Daubechies Scaling Functions, Amber E. Age

USF Tampa Graduate Theses and Dissertations

Wavelets are functions used to approximate data and can be traced back to several different areas, including seismic geology and quantum mechanics. Wavelets are applicable in many areas, including fingerprint and data compression, earthquake prediction, speech discrimination, and human vision. In this paper, we first give a brief history on the origins of wavelet theory. We will then discuss the work of Daubechies, whose construction of continuous, compactly supported scaling functions resulted in an explosion in the study of wavelets in the 1990's. These scaling functions allow for the construction of Daubechies' wavelets. Next, we shall use the algorithm to …

Low-Level Programming Of A 9-Degree-Of-Freedom Wheelchair-Mounted Robotic Arm With The Application Of Different User Interfaces, Punya A. Basnayaka

USF Tampa Graduate Theses and Dissertations

Implementation of C++ and Matlab based control of University of South Florida's latest wheelchair-mounted robotic arm (USF WMRA-II), which has 9 degrees-of-freedom, was carried out under this Master's thesis research. First, the rotational displacements about the 7 joints of the robotic arm were calibrated. It was followed by setting the control gains of the motors. Then existing high-level programs developed using C++ and Matlab for USF WMRA-I were modified for WMRA-II. The required low-level programs to provide complete kinematics of the joint movements to the controller board of WMRA-II (Galil DMC-2183) were developed using C++. A test GUI was developed …

School-Based Mental Health Services: A National Survey Of School Psychologists’ Practices And Perceptions, Allison Friedrich

USF Tampa Graduate Theses and Dissertations

This study explored the current role of school psychologists in the provision of school-based mental health services, including factors that relate to their provision of such services, by surveying a national sample of practicing school psychologists. Despite an extensive knowledge base regarding which professional services school psychologists provide in general, few studies have focused exclusively on specific modalities of mental health services. Previous lines of research also have not fully identified why school psychologists do not spend as much of their professional time in the provision of mental health services as they would desire. Therefore, a central purpose of this …

The Novel Use Of Recombinant Granulocyte-Macrophage Colony-Stimulating Factor (Gm-Csf) To Reverse Cerebral Amyloidosis And Cognitive Impairment In Alzheimer’S Disease Mouse Models: Insights From The Investigation Of Rheumatoid Arthritis As A Negative Risk Factor For Alzheimer’S Disease, Timothy David Boyd

USF Tampa Graduate Theses and Dissertations

For many years, it has been known that Rheumatoid arthritis (RA) is a negative risk factor for the development of Alzheimer’s disease (AD). It has been commonly assumed that RA patients’ usage of non-steroidal anti-inflammatory drugs (NSAIDs) have helped prevent the onset and progression of AD pathogenesis. Furthermore, experiments in animal models of Alzheimer’s disease have looked to inhibit inflammation, and have demonstrated some efficacy against AD-like pathology in these models. Thus many NSAID clinical trials have been performed over the years, but all have proven unsuccessful in AD patients. This suggests that intrinsic factors within RA pathogenesis itself may …

School-Based Mental Health Services: A National Survey Of School Psychologists’ Practices And Perceptions, Allison Friedrich

USF Tampa Graduate Theses and Dissertations

This study explored the current role of school psychologists in the provision of school-based mental health services, including factors that relate to their provision of such services, by surveying a national sample of practicing school psychologists. Despite an extensive knowledge base regarding which professional services school psychologists provide in general, few studies have focused exclusively on specific modalities of mental health services. Previous lines of research also have not fully identified why school psychologists do not spend as much of their professional time in the provision of mental health services as they would desire. Therefore, a central purpose of this …

Microexpression Spotting In Video Using Optical Strain, Sridhar Godavarthy

USF Tampa Graduate Theses and Dissertations

Microexpression detection plays a vital role in applications such as lie detection and psychological consultations. Current research is progressing in the direction of automating microexpression recognition by aiming at classifying the microexpressions in terms of FACS Action Units. Although high detection rates are being achieved, the datasets used for evaluation of these systems are highly restricted. They are limited in size - usually still pictures or extremely short videos; motion constrained; containing only a single microexpression and do not contain negative cases where microexpressions are absent. Only a few of these systems run in real time and even fewer have …

Teaching Social Skills To Children With Asperger’S And High Functioning Autism: An Evaluation Of Video Self-Modeling And Behavior Skills Training, Krystal M. Mcfee

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to evaluate the effects of video self-modeling and behavior skills training to teach social skills to children with Asperger’s and high functioning autism. The targeted social skills were social initiations and social responses. The video self-modeling alone condition was implemented first using a video feedforward approach. A behavior skills training (BST) procedure was implemented following the video self-modeling alone condition for each participant. BST consisted of instructions, modeling, rehearsal, and feedback. The frequency of each target behavior was scored from videotapes using 10-second frequency within interval recording. After the video self-modeling was introduced, a …

Effects Of Reading Comprehension And Fluency Abilities On The N400 Event-Related Potential, Annie Hirt Nelson

USF Tampa Graduate Theses and Dissertations

The purpose of this study is to add to the knowledge of reading development by investigating reading processes from a neurocognitive and educational perspective. This study seeks to provide some insight about reading development for the neuroscience field. The goals of this study are to attain a clearer picture of reading development by using both behavioral assessments and event-related potentials (ERPs), and to begin to bridge the gap between both fields of study. Children between the ages of 7 and 13 were placed in one of two groups depending on their reading comprehension levels for the first analyses, and reading …

An Ecology Of Performance: Gregory Bateson's Cybernetic Performance, Daniel Matthew Blaeuer

USF Tampa Graduate Theses and Dissertations

This dissertation is a case study of the public performances of Gregory Bateson at The Esalen Institute. The case study is a reconsideration of the work of Gregory Bateson from the perspective of performance studies. The author brings together performativity, cybernetics, and the sacred to argue that Gregory Bateson, in his public performances, was striving for grace in encounters with others. The author has conducted archival research into Bateson’s presentations and has spoken with several close to Bateson to get a sense of how his process of public presentation paralleled his ideas—a process of continually working through ideas in conversation …

The Relationship Between Fam5c Snp (Rs10920501) Variability, Metabolic Syndrome, And Inflammation, In Women With Coronary Heart Disease, Jennifer L. Cline

USF Tampa Graduate Theses and Dissertations

The leading cause of death among women is coronary heart disease (CHD), a multifactorial disease with polygenic heritability estimated at 50%. Polymorphisms in the family with sequence similarity 5, member C' (FAM5C) gene have been associated with myocardial infarction (MI), and one single-nucleotide polymorphism (SNP) has partially accounted for linkage in an acute coronary syndrome subset. The linkage peak on FAM5C corresponds directly with a quantitative trait locus for the inflammatory biomarker monocyte chemoattractant protein 1, as well as a linkage peak to metabolic syndrome (MetS). Metabolic syndrome increases the risk of developing CHD, and MI has been …

The Effects Of Aging On Temporal Masking, Susan E. Fulton

USF Tampa Graduate Theses and Dissertations

The ability to resolve rapid intensity and frequency fluctuations in sound is important for understanding speech, especially in real-world environments that include background noise and reverberation. Older listeners often complain of difficulties understanding speech in such real-world environments. One factor thought to influence speech understanding in noisy and reverberant environments is temporal resolution, the ability to follow rapid acoustic changes over time. Temporal resolution is thought to help listeners resolve rapid acoustic changes in speech as well as use small glimpses of speech available in the dips or gaps in the background sounds. Temporal resolution is an ability that is …

Perspective Taking And Relative Clause Comprehension: A Cross-Modal Picture Priming Study, Nicola C. Jones

USF Tampa Graduate Theses and Dissertations

Fourteen young adults participated in a cross-modal picture priming study. Perspective shift processing, in four types of relative clause sentences and in control sentences, was assessed using reaction times. Predictions were: 1) the easier the perspective shifts, the faster the reaction times and 2) subject relative clauses would reveal a priming effect versus attenuated or no priming in object relative clauses due to difficulty following perspective. A priming effect was observed for 1- switch relative clause sentences and for control sentences, while no priming effect was observed for 0 switch, 1+ switch, or 2 switch sentences. Results suggest that variations …

The Relationship Between Fam5c Snp (Rs10920501) Variability, Metabolic Syndrome, And Inflammation, In Women With Coronary Heart Disease, Jennifer L. Cline

USF Tampa Graduate Theses and Dissertations

The leading cause of death among women is coronary heart disease (CHD), a multifactorial disease with polygenic heritability estimated at 50%. Polymorphisms in the family with sequence similarity 5, member C’ (

FAM5C) gene have been associated with myocardial infarction (MI), and one single-nucleotide polymorphism (SNP) has partially accounted for linkage in an acute coronary syndrome subset. The linkage peak on FAM5C corresponds directly with a quantitative trait locus for the inflammatory biomarker monocyte chemoattractant protein 1, as well as a linkage peak to metabolic syndrome (MetS). Metabolic syndrome increases the risk of developing CHD, and MI has been positively …

Electrospinning Protein Nanofibers To Control Cell Adhesion, Cynthia Chinwe Nwachukwu

USF Tampa Graduate Theses and Dissertations

The structural and mechanical properties of a surface often play an integral part in the determination of the cell adhesion strength and design parameters for creating a biodegradable electrospun scaffold. Nanofibers composed of the globular proteins bovine serum albumin (BSA) and fibronectin were produced by electrospinning with the electrospun protein scaffold serving as an extracellular matrix to which adhesion interaction will exist with cells via cell surface integrin. This interaction is vital in regulation cell differentiation, growth and migration and cell adhesion.

We will demonstrate the ability to manipulate ligand-receptor interaction, the properties of the electrospun fibers, control and the …

Synthesis, Characterization, And Self-Assembly Of Gold Nanorods And Nanoprisms, Kristina L. Tran

USF Tampa Graduate Theses and Dissertations

The unique properties of gold nanoparticles make them excellent candidates for applications in electronics, sensing, imaging, and photothermal therapy. Though abundant literature exists for isotropic gold nanoparticles, work on nanoparticles of different shapes has been gaining interest recently. Anisotropic gold nanoparticles, such as nanorods and nanoprisms, have tunable optical properties in the visible and near-infrared regions. Through synthesis and surface modification, the production of various shapes of these gold nanoparticles can be controlled to meet different applications.

Two different types of gold nanorods were used in this thesis. The first type was stabilized with cetyltrimethylammonium bromide (CTAB) and had aspect …

Beyond Survival: An Exploration Of Narrative Healing And Forgiveness In Healing From Rape, Heather Curry

USF Tampa Graduate Theses and Dissertations

This work explores: liberatory possibilities and limitations of narrative in healing from rape; the work and meanings of forgiveness, specifically seeking a complex definition of forgiveness drawing on spiritual, feminist, complexity, and phenomenological philosophies; and the relationships between narrative processes and forgiveness. I use an autoethnographic approach, offering my story of rape and healing in the aftermath. I attend to the physicality of the narrative, and to the way in which memory resides in the body, thus creating an embodied text. I examine current models of rape recovery, and the terms used by organizations, practitioners, and authors of rape narratives …

A Comparative Study Of Knowledge Of Pain Management In Certified And Non-Certified Oncology Nurses, Sherrie A. Lalande

USF Tampa Graduate Theses and Dissertations

Over 1.4 million people are diagnosed with cancer annually. Of those people, 70-90% experience some form of pain. Numerous efforts have been made to educate nurses in the management of pain, yet 30-50% of cancer patients report that their pain is poorly managed. It is not clear whether nurses who obtain certification in Oncology are better equipped to manage this patient population regarding their pain issues. This study compared the knowledge of Oncology Certified Nurses (OCN) and Non-Certified Oncology Nurses (NCON) regarding pain management.

The sample of 41 oncology nurses included 19 who were certified in oncology and 22 who …