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Biomechanical Testing On Cadaveric Spines For Different Treatments That Affect Lumbar Stability, Sabrina Alejandra Gonzalez Blohm

USF Tampa Graduate Theses and Dissertations

Stenosis is one of the most common causes for spinal surgery. Laminectomy decompression and fusion are surgical procedures prescribed for this condition. The intention of this work was to investigate the effects of a laminectomy decompression, followed by fusion, on a lumbar functional spinal unit (FSU) through in vitro dynamic (±8Nm at 0.125Hz) and quasi-static (±7.5Nm at 0.1Hz) biomechanical tests, for flexion, extension, bending and rotation motions.

Six FSUs where disarticulated from four human cadaveric lumbar spines (63 ± 12 years) and were tested under the following sequence: (1) intact, (2) laminectomy decompression, and (3) Pedicle Screw System (PSS), using …

A Framework For Participatory Sensing Systems, Diego Mendez Chaves

USF Tampa Graduate Theses and Dissertations

Participatory sensing (PS) systems are a new emerging sensing paradigm based on the participation of cellular users in a cooperative way. Due to the spatio-temporal granularity that a PS system can provide, it is now possible to detect and analyze events that occur at different scales, at a low cost. While PS systems present interesting characteristics, they also create new problems. Since the measuring devices are cheaper and they are in the hands of the users, PS systems face several design challenges related to the poor accuracy and high failure rate of the sensors, the possibility of malicious users tampering …

Disaster Vulnerability Of University Student Populations, Jamie Lynn Auletta

USF Tampa Graduate Theses and Dissertations

Student populations at Gulf Coast universities and colleges are subjected to multiple forces working together making them an especially vulnerable sub-group to hazards. Research has suggested that college students represent a segment of the population that hazards research has frequently overlooked and maybe not fully appreciated in university emergency planning. Most prior research has focused on university disaster experiences, highlighting what went wrong, and what should be done but little research focuses on what is actually taking place. The primary intent of this research was to gain better insight into university emergency planning and identify areas universities have neglected with …

On Algorithmic Fractional Packings Of Hypergraphs, Jill Dizona

USF Tampa Graduate Theses and Dissertations

Let F₀ be a fixed k-uniform hypergraph, and let H be a given k-uniform hypergraph on n vertices. An F₀-packing of H is a family F of edge-disjoint copies of F₀ which are subhypergraphs in H. Let n_F0(H) denote the maximum size |F| of an F₀-packing F of H. It is well-known that computing n_F0(H) is NP-hard for nearly any choice of F₀.

In this thesis, we consider the special case when F₀ is a linear hypergraph, that is, when no two edges …

Surface Mass Transfer In Large Eddy Simulation (Les) Of Langmuir Turbulence, Cigdem Akan

USF Tampa Graduate Theses and Dissertations

Over the past century the study of gas exchange rates between the atmosphere and the ocean has received increased attention because of concern about the fate of greenhouse gases such as CO₂ released into the atmosphere. Of interest is the oceanic uptake of CO₂ in shallow water coastal regions as biological productivity in these regions is on average about three times larger than in the open ocean. It is well-known that in the absence of breaking surface waves, the water side turbulence controls gas transfer of sparingly soluble gases such as CO₂ from the air to the …

Perceived Firm Transparency: Scale And Model Development, Jennifer Dapko

USF Tampa Graduate Theses and Dissertations

In the last few years alone, calls for transparency by consumers have grown louder. No longer are consumers willing to sit back and allow firms to make `closed door' decisions that benefit the company (and its executives) at the expense of consumers and society. This dissertation begins to answer the call for a greater understanding of transparency from both practitioner and academic perspectives. In particular, this dissertation focuses on systematically developing a succinct definition of perceived firm transparency, developing a valid measure of transparency, and empirically testing antecedents and consequences of transparency.

Two studies were conducted to develop the transparency …

Program Evaluation: An Ngo's Attempt To Use Volunteerism To Promote Community Development, Adrienne Sage Mael

USF Tampa Graduate Theses and Dissertations

This thesis provides an ethnographic account of a NGOs effort to recruit and retain volunteers. Specifically, this project is a program evaluation of a community-based grant designed as a bottom-up approach to empower community residents to make changes in their community. The study details the many efforts - and obstacles - involved in this process. It is presented as a contribution to the anthropology of policy, to evaluation theory, and to applied anthropological methods. The investigator used participant-observation fieldwork and ethnographic interviews of both volunteer and non-volunteers to evaluate the program's successes and failures.

Expatriates' Acculturation Strategies: Going Beyond "How Adjusted Are You?" To "How Do You Adjust?", Matthew Lineberry

USF Tampa Graduate Theses and Dissertations

Expatriates' degree of adjustment to living and working in a foreign country is well-accepted as an important outcome variable in expatriate management research. However, measures of degree of adjustment do not capture the breadth of strategies expatriates may use to achieve such adjustment, which may be critical for understanding whether expatriates have achieved a healthy and productive orientation to life abroad. Borrowing from research on immigrant populations, this study examines the construct of expatriate acculturation strategies, which characterize expatriates' mode of adjustment along two independent dimensions reflecting maintenance of one's home culture and engagement of the host culture, respectively. One …

Paleobiological Assessment Of Controls Underlying Long-Term Diversity Dynamics, Andrés L. Cárdenas

USF Tampa Graduate Theses and Dissertations

Deciphering the factors underlying both long-term patterns of diversity and taxonomic turnover rates (i.e., extinction, and origination) has been one of Paleobiology's major foci for the past three decades. The importance of documenting these components is that they will expand our ability to interpret and model the evolutionary processes underlying those trends, highlight the evolutionary impact of historical events, and contribute to the formulation of robust predictions about the future of global diversity in response to the current anthropologically driven environmental changes. Accordingly, the first part of this study examines the possible occurrence of global marine evolutionary environmental controls into …

The Role Of Dysregulation In Pediatric Obsessive Compulsive Disorder: An Examination Of Symptom Severity, Impairment And Treatment Outcome, Joseph F. Mcguire

USF Tampa Graduate Theses and Dissertations

Pediatric OCD is frequently complicated by co-occurrences with ADHD, mood and anxiety disorders. Although each of these disorders is associated with impaired self-regulation, there has been little examination of impaired self-regulation (i.e., dysregulation) in youth with OCD. Dysregulation is characterized by affective, behavioral and cognitive problems, and can be assessed using the Child Behavior Checklist-Dysregulation Profile (CBCL-DP). Dysregulation may help account for the varied yet related findings identified for symptom severity, impairment and treatment outcome in pediatric OCD. This study examined the role of dysregulation on symptom severity, impairment and treatment outcome in a large sample of youth with OCD. …

The Dark Circle: Spiritualism In Victorian And Neo-Victorian Fiction, Joseph Good

USF Tampa Graduate Theses and Dissertations

This dissertation offers critical and theoretical approaches for understanding depictions of Spiritualism in Victorian and Neo-Victorian fiction. Spiritualism has fascinated and repelled writers since the movement's inception in Hydesville, New York, in 1848, and continues to haunt writers even today. The conclusion of this dissertation follows Spiritualist fiction as it carries over into the Neo-Victorian genre, by discussing how themes and images of Victorian Spiritualism find "life after death" in contemporary work. Spiritualism, once confined to the realm of the arcane and academically obscure, has begun to attract critical attention as more scholars exhume the body of literature left behind …

A Spatially Explicit Agent Based Model Of Muscovy Duck Home Range Behavior, James Howard Anderson

USF Tampa Graduate Theses and Dissertations

ABSTRACT

Research in GIScience has identified agent-based simulation methodologies as effective in the study of complex adaptive spatial systems (CASS). CASS are characterized by the emergent nature of their spatial expressions and by the changing relationships between their constituent variables and how those variables act on the system's spatial expression over time. Here, emergence refers to a CASS property where small-scale, individual action results in macroscopic or system-level patterns over time. This research develops and executes a spatially-explicit agent based model of Muscovy Duck home range behavior. Muscovy duck home range behavior is regarded as a complex adaptive spatial system …

From Immortal To Mortal: Objectification And Perceptions Of A Woman's Soul, Nathan A. Heflick

USF Tampa Graduate Theses and Dissertations

Abstract

Objectification most literally refers to perceiving a person as an object. Research shows that when people focus on a woman's appearance, compared to her personality, she is perceived of as more of an object (e.g., lower in human nature traits). These objectification effects, however, rarely occur for male targets. Moreover, humans, unlike objects, are typically believed to have a soul, that is, some part of the self that outlasts the death of the physical body and extends into a post-mortem existence (e.g., Heaven). In turn, I hypothesized that women, but not men, would be perceived as having less soul …

Team-Teaching Experiences Of A Mathematician And A Mathematics Teacher Educator: An Interpretative Phenomenological Case Study, Sarah K. Bleiler

USF Tampa Graduate Theses and Dissertations

In recent years, experts and organizations involved in mathematics education have emphasized the importance of collaboration between mathematicians and mathematics teacher educators as a means of improving the professional preparation of mathematics teachers. While several such collaborative endeavors have been documented in the extant literature, most research reports have focused on the products, rather than the process, of collaboration. The purpose of this interpretative phenomenological case study is to gain an understanding of the lived experiences of a mathematician and a mathematics teacher educator as they engaged in a team-teaching collaboration within the context of prospective secondary mathematics teacher preparation. …

Shaping Identity: Male And Female Interactions In Cinema, Jonette Lauren Lagamba

USF Tampa Graduate Theses and Dissertations

ABSTRACT

Since the inception of cinema, women have been portrayed with the typical identities of emotionally and physically weak characters; this portrayal led to their subsequent dependence on men. Men were usually the protagonists and/or the heroes, following their archetypal journey. Thus, women's position in early cinema was to exemplify what men were not, placing the former in the diminutive position of the Other. One may conclude that men were often defined by what women lacked, and the women were defined by their relationships with these heroic men. As time progressed in the history of cinema, women's images retained part …

Algorithms For Visual Maritime Surveillance With Rapidly Moving Camera, Sergiy Fefilatyev

USF Tampa Graduate Theses and Dissertations

Visual surveillance in the maritime domain has been explored for more than a decade. Although it has produced a number of working systems and resulted in a mature technology, surveillance has been restricted to the port facilities or areas close to the coastline assuming a fixed-camera scenario. This dissertation presents several contributions in the domain of maritime surveillance. First, a novel algorithm for open-sea visual maritime surveillance is introduced. We explore a challenging situation with a camera mounted on a buoy or other floating platform. The developed algorithm detects, localizes, and tracks ships in the field of view of the …

Failed Heroes: Hypermasculinity In The Contemporary American Novel, Josef D. Benson

USF Tampa Graduate Theses and Dissertations

My study highlights a link of U.S. American hypermasculinity running through Cormac McCarthy's two novels Blood Meridian (1985) and All the Pretty Horses (1992), Toni Morrison's Song of Solomon (1977), and James Baldwin's Another Country (1960). My literary interpretations of these texts suggest that U.S. American hypermasculine man originated in the American frontier and transformed into a definition of hegemonic masculinity embraced by many southern rural American men. These southern rural American men then concocted the myth of the black rapist in order to justify the mass murder of African American men after Reconstruction, inadvertently creating a figure more hypermasculine …

Electronic Peer Feedback In A Collaborative Classroom, Cassandra A. Branham

USF Tampa Graduate Theses and Dissertations

This study examines the ways in which frequency and reflexivity affect student engagement with the peer feedback process. I study the peer e-feedback sessions conducted via My Reviewers in a pilot model of Composition 2 at a large research university in the southeast in order to determine if an increased focus on the peer feedback activity might enhance the effectiveness of the process. Through textual analysis and survey results, I determine that an increased focus on electronic peer feedback along with an increase in frequency and reflexivity helps to minimize some common criticisms of the peer feedback process. In this …

Low Level Exposure To Air Pollution And Risk Of Adverse Birth Outcomes In Hillsborough County, Florida, Maria B. Mainolfi

USF Tampa Graduate Theses and Dissertations

In this retrospective cohort from 2002 through 2007, 104,003 singleton live births in Hillsborough County, Florida were analyzed to elucidate the relationship between feto-infant morbidity outcomes and prenatal exposure to six criteria air pollutants. This study is based on three linked databases: The Florida Hospital Discharge database; The vital statistics records of singleton live births; Air Pollution meteorological data from the Environmental Protection Agency. There are six common air pollutants, particulate matter 2.5 (PM2.5), particulate matter 10 (PM10), ground-level ozone (O3), carbon monoxide (CO), nitrogen (NOx), and lead (Pb). These pollutants are harmful to human health and the environment. The …

Valanced Voices: Student Experiences With Learning Disabilities & Differences, Zoe Dupree Fine

USF Tampa Graduate Theses and Dissertations

This feminist oral history project located at the intersections of disability, feminist, body politics, and educational theory presents an analysis of three individual student narratives about their experiences with learning disabilities and learning differences (LD/Ds) at the high school and university levels. This thesis introduces students' accounts of their daily lives, pasts, personal views, experiences, and memories about having learning disabilities and learning differences into the existing scholarship on LDs and reveals how students' narrated experiences might shed light on the ways in which education might be reformed to better meet the needs of students like them. In response to …

Detecting Surface Oil Using Unsupervised Learning Techniques On Modis Satellite Data, Joshua Kidd

USF Tampa Graduate Theses and Dissertations

The release of crude oil or other petroleum based products into marine habitats can have a devastating impact on the environment as well as the local economies that rely on these waters for commercial fishing and tourism. The Deepwater Horizon catastrophe that started on April 20th 2010 leaked an estimated 4.4 million barrels of crude oil into the Gulf of Mexico over a 3 month period threatening thousands of species and crippling the gulf coast. The National Oceanic and Atmospheric Administration (NOAA) used several satellite remote sensing technologies to manually track and predict the extent and location of oil on …

More Than Words: Rhetorical Devices In American Political Cartoons, Lawrence Ray Bush

USF Tampa Graduate Theses and Dissertations

This thesis argues that literary theory applied to political cartoons shows that cartoons are reasoned arguments. The rhetorical devices used in the cartoons mimic verbal devices used by essayists. These devices, in turn, make cartoons influential in that they have the power to persuade readers while making them laugh or smile. It also gives examples of literary theorists whose works can be applied to political cartooning, including Frederick Saussure, Mikhail Bakhtin, and Wolfgang Iser. Not only do those theorists' arguments apply to text, they also apply to pictorial representations.

This thesis also discusses changes in the cartoon art form over …

Assessing The Link Between Coastal Development And The Quality Of Fish Habitat In Mangrove Tidal Tributaries, Justin Micheal Krebs

USF Tampa Graduate Theses and Dissertations

To assess the potential influence of coastal development on the quality of estuarine habitat for nekton, we characterized land use and the intensity of land development surrounding small tidal tributaries of Tampa Bay. Based on this characterization, we classified tributaries as undeveloped, industrial, urban or man-made (i.e., mosquito-control ditches). Over one-third (37%) of tributaries were determined to be heavily developed, while fewer than one-third (28%) remain relatively undeveloped. We then examined the nekton community from eleven tributaries in watersheds representing the defined land-use classes. Whereas mean nekton density and species richness were both independent of land use, nekton-community structure differed …

Development And Application Of An F/M Based Anaerobic Digestion Model And The Rt-Ribosyn Molecular Biology Method, Matthew Raymond Cutter

USF Tampa Graduate Theses and Dissertations

A simple anaerobic digestion model has been developed for a continuously-stirred tank reactor (CSTR), which links the specific biogas production rate to the food/microorganism ratio (F/M). The model treats the various microbial populations involved in the sequential biological processes involved in anaerobic digestion as a composite and links the entire biomass specific growth rate directly to the specific biogas production rate. The model was calibrated by determining the specific gas production rate for a range of F/M values using a municipal wastewater seed sludge. The model predictions for steady-state biogas production rates were compared to observed biogas production and volatile …

Self-Assembly Of Self-Similar Structures By Active Tiles, Daria Karpenko

USF Tampa Graduate Theses and Dissertations

The natural capacity of DNA for molecular self-assembly has already been exploited to create DNA based tiles which can self-assemble into nano-scale arrays and carry out nano-scale computation. Thus far, however, all such self-assembly has been passive, in the sense that the binding capacities of a tile are never altered throughout the assembly. The idea of active tiles, tiles that can send signals to each other and activate latent binding sites, has been proposed but never incorporated into a formal model. Here, I present an extension of the existent abstract tile assembly model by defining an active tile assembly and …

Don't Blame It On My Ovaries: Exploring The Lived Experience Of Women With Polycystic Ovarian Syndrome And The Creation Of Discourse, Jennifer Lynn Ellerman

USF Tampa Graduate Theses and Dissertations

Polycystic Ovarian Syndrome (PCOS) is the most common endocrine disorder among females of childbearing age, affecting between 6-8% of the population. It is also the most common cause of infertility. Females with PCOS may have two or more of a constellation of symptoms that can potentially leave them at odds in terms of normative ideals of femininity. This study examines how feminist theory interrogates and analyzes knowledge about the body and PCOS, integrating the lived experiences of women to provide a deeper, more meaningful understanding of what it means to be a woman with PCOS.

Investigation And Synthesis Of Novel Graphene-Based Nanocomposites For Hydrogen Storage, Anthony Joseph D'Angelo

USF Tampa Graduate Theses and Dissertations

It is of great interest to develop and utilize a high surface area material with optimized hydrogen sorption properties. The need for a renewable energy source to replace automobile gasoline has become more critical in the past decade. Hydrogen is a viable fuel source for automobile usage; however, the question of how hydrogen will be safely and efficiently stored still remains. Critical factors for optimum hydrogen storage include ambient conditions and low activation temperature for adsorption and desorption phenomena. In order for optimum hydrogen adsorption to be achieved, the properties of (1) high surface area, (2) optimum hydrogen adsorption energy, …

Goal Attainment As A Function Of Depressive Status In Women: The Role Of Problem-Solving, Lindsay Brauer

USF Tampa Graduate Theses and Dissertations

Despite the theoretical importance of goal-related deficits in individuals with Major Depressive Disorder (MDD), relatively empirical research has examined goal generation and perceived goal attainment in depression vulnerable individuals. The

current project sought to examine the impact of depressive status on perceived goal attainment in currently depressed, remitted depressed, and never-depressed women. In addition, perceived problem-solving skills, a construct thought to be critical for goal

striving and in goal attainment was also examined. Unexpectedly, no effects of depressive status on perceived goal attainment or overall perceived problem-solving skills were observed. Results did however reveal group differences in perceived control in …

Multidimensional Spectroscopy Of Semiconductor Quantum Dots, Jason Michael Bylsma

USF Tampa Graduate Theses and Dissertations

The coherent properties of semiconductor nanostructures are inherently difficult to measure and one-dimensional spectroscopies are often unable to separate inhomogeneous and homogeneous linewidths. We have refined and improved a method of performing multidimensional Fourier transform spectroscopy based on four-wave

mixing (FWM) experiments in the box geometry. We have modified our system with broadband beamsplitters in all interferometer arms, high-resolution translation stages and the ability to work in reflection geometry. By improving the phase-stability of our setup and scanning pulse delays with sub-optical cycle precision, we are able to

reproduce 2DFT spectra of GaAs multiple quantum wells. With the FWM signal …

An Examination Of Self-Directed Learning Readiness In Executive-Level Fire Officers, Steven G. Knight

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to examine the self-directed learning readiness in executive fire officers in relation to the independent variables of personality type, educational attainment, and professional designation. This research utilized a quantitative design.

This study utilized the Myers-Briggs Type Indicator (MBTI) and the Self-Directed Learning Readiness Scale (SDLRS) with a sample of 250 professional firefighters. The total sample was divided equally between executive-level fire officers and firefighters at 125 each from professional departments in the Southeastern United States. Results were that the mean SDLRS score for the executive-level fire officers was 233.7 and significantly higher than the …