Digital Commons Network^™

A Smoking Cessation Program Using Vouchers With Individuals With Traumatic Brain Injury, Thomas Karl Erickson

USF Tampa Graduate Theses and Dissertations

This study examined the effects of a smoking cessation program using vouchers as reinforcers with individuals with traumatic brain injury and a history of substance abuse. The intervention was conducted at a residential facility that houses individuals with Traumatic Brain Injury (TBI). Vouchers were delivered contingent on reductions of carbon monoxide (CO) samples of 5 ppm or less across a shaping phase, and an abstinence induction phase. A standard pay phase was added at the end of the study to examine the effects of a standardized reinforcement scale with the abstinence criterion set at 8 ppm or less. Reductions in …

An Evaluation Of Reactivity To Observer Presence While Self-Monitoring To Improve Swimming Performance, Sara Wendi Schonwetter

USF Tampa Graduate Theses and Dissertations

The current study evaluated the effects of self-monitoring by swimmers to improve their performance at practice and assessed the effects of reactivity to observer presence on their performance. Additionally, it investigated the accuracy of the swimmers' self-reports. Seven public high school swim team members used program boards to self-monitor in order to increase the number of assigned laps completed at practice. Reactivity to observer presence was assessed by having a confederate record the number of laps completed during observer absent conditions. A series of AB replications and an ABAB reversal design were used. The percentage of assigned laps completed increased …

Model And Validation Of Static And Dynamic Behavior Of Passive Diamagnetic Levitation For Energy Harvesting, Chamila Shyamalee Siyambalapitiya

USF Tampa Graduate Theses and Dissertations

This dissertation reports the investigation conducted on the static and dynamic behavior of the passive diamagnetic levitation systems.

Attachment of a device to a substrate hinders the optimum performance ability of vibrating devices by altering the dynamic behavior of the moving part whilst introducing higher overall stiffness. The significance of this effect is prominent especially in vibration based energy harvesters as higher stiffness elevates the resonance frequency of the system, making it difficult to tune into ambient low frequencies. Other advantages of the proposed method are given by the removal of mechanical bending elements, which are often the source of …

Evaluation Of Video Modeling And In Situ Training To Teach Gun Safety Skills To Individuals With Autism Spectrum Disorder, Kelsey Lynn Morgan

USF Tampa Graduate Theses and Dissertations

Currently, there is no known research on teaching gun safety skills to individuals with developmental disabilities. Research has shown that children typically engage in gunplay behaviors if they find a firearm. These behaviors can lead to unintentional firearm injuries and even death, especially for young children. Previous research has shown the success of video modeling for teaching various skills to individuals with autism. This study examined the effectiveness of video modeling for teaching gun safety skills to three children with autism spectrum disorder, and found that video modeling was effective for one participant, but in situ training was needed to …

Influence Of Stress And Cytokinic Profiles On Cognitive Performance In Older Adults, Kerri S. Rawson

USF Tampa Graduate Theses and Dissertations

ABSTRACT

With aging, changes in the immune system, makes cognitive performance, and the prevalence of stressors can lead to poorer overall functioning. Within the immune system, a balance should exist between cytokines regulating Th1 and Th2 immune responses; however, age-related declines in the endocrine and immune systems can disrupt this equilibrium. Several studies report higher levels of Th1 associated cytokines in inflammatory conditions of the brain, whereas fewer studies remark on Th2 associated cytokines and cognitive functioning. Declining cognitive abilities are a common concern that accompanies advancing age and some research has suggested the prevalence and impact of stressors lead …

Development Of A Bi-Directional Electronics Platform For Advanced Neural Applications, Luca Abbati

USF Tampa Graduate Theses and Dissertations

This work presents a high-voltage, high-precision bi-directional multi-channel system capable of stimulating neural activity through bi-phasic pulses of amplitude up to ∓50 V while recording very low-voltage responses as low as tens of microvolts. Most of the systems reported from the scientific community possess at least one of the following common limitations: low stimulation voltages, low gain capabilities, or insufficient bandwidth to acquire a wide range of different neural activities.

While systems can be found that present remarkable capabilities in one or more specific areas, a versatile system that performs over all these aspects is missing. Moreover, as many novel …

Improving The Throughput And Reliability Of Wireless Sensor Networks With Application To Wireless Body Area Networks, Gabriel Arrobo

USF Tampa Graduate Theses and Dissertations

This dissertation will present several novel techniques that use cooperation and diversity to improve the performance of multihop Wireless Sensor Networks, as measured by throughput, delay, and reliability, beyond what is achievable with conventional error control technology.

We will investigate the applicability of these new technologies to Wireless Body Area Networks (WBANs) an important emerging class of wireless sensor networks. WBANs, which promise significant improvement in the reliability of monitoring and treating people's health, comprise a number of sensors and actuators that may either be implanted in vivo or mounted on the surface of the human body, and which are …

Bereavement Outcomes Among Spousal Hospice Caregivers: The Role Of Rumination, Feelings Of Relief, And Perceived Suffering, Jessica Y. Allen

USF Tampa Graduate Theses and Dissertations

Background: The death of a spouse is among the most distressing life events faced by older adults and frequently follows long periods of providing extensive care and support. Although many spouses are resilient following loss, a number of bereaved spousal caregivers have poor psychological well-being and may benefit from clinical services. However, it can be difficult to determine who may most benefit from bereavement services and why some individuals are at greater risk for poor bereavement; thus, there is a need for greater understanding of the process of bereavement. Therefore, the purpose of this dissertation was to investigate a number …

Wetland And Lake Destruction, Development And Mental/Emotional Distress Among Residents Of Tampa Bay, Florida, Gina Larsen

USF Tampa Graduate Theses and Dissertations

The purpose of this research project is to understand how local environmental destruction in Tampa Bay, Florida, including changes in water resources and development activities, affects local Tampa Bay residents mentally and emotionally. The study also examines residents' personal connections with their landscape and documents the degree of stress that may be caused by experiencing environmental destruction through the use of interviews, freelists, and two psychometric stress scales (Hopkins Symptom Checklist-10 and the Environmental Distress Scale). The topic of emotional distress and environmental change has rarely been studied in social science research, particularly in the United States and with regards …

Linear Mixed-Effects Models: Applications To The Behavioral Sciences And Adolescent Community Health, Lizmarie Gabriela Maldonado

USF Tampa Graduate Theses and Dissertations

Linear mixed-effects (LME) modeling is a widely used statistical method for analyzing repeated measures or longitudinal data. Such longitudinal studies typically aim to investigate and describe the trajectory of a desired outcome. Longitudinal data have the advantage over cross-sectional data by providing more accuracy for the model. LME models allow researchers to account for random variation among individuals and between individuals.

In this project, adolescent health was chosen as a topic of research due to the many changes that occur during this crucial time period as a precursor to overall well-being in adult life. Understanding the factors that influence how …

Altering A Secondary Tier Intervention To Examine The Effects Of Negative Reinforcement Contingencies On Elementary School Students, Stevie-Marie Swift

USF Tampa Graduate Theses and Dissertations

Problem behaviors in the school setting have become more frequent as well as challenging for teachers and faculty to decrease while attempting to help their students attain their academic goals. Within the last decade, school-wide positive behavior support (SWPBS) has become more widespread as an evidence-based practice within the school system. SWPBS uses a multi-tiered support structure in order to affect behavior change across an entire school population. Several common secondary interventions have been utilized with high success rates. However, the research conducted thus far using the Check-In/Check-Out (CICO) program, a secondary intervention, has shown a lesser degree of success …

A Deadly Way Of Doing Business: A Case Study Of Corporate Crime In The Coal Mining Industry, Charles Nickolas Stickeler

USF Tampa Graduate Theses and Dissertations

To this point, research on corporate crime has been, for the most part, overlooked by mainstream criminology. In particular, corporate violations of safety regulations in the coal mining industry have yet to be studied within the field of criminology. The purpose of this thesis is to examine the crimes of a coal mining corporation, a corporation whose business decisions led to the worst coal mining disaster in forty years, along with the deaths of twenty-nine men. This thesis will utilize a case study format in order to illustrate the crimes committed by this corporation. Previous literature covering the history of …

Using A Goal-Setting And Feedback Procedure To Increase Running Distance, Stephanie Wack

USF Tampa Graduate Theses and Dissertations

Goal-setting procedures have been employed in many different sports, and have been shown to be a beneficial component for enhancing sports performance. For this study, a changing-criterion within multiple-baseline design was used to evaluate a multi-component intervention for increasing running distance for five healthy adults. The intervention consisted of goal setting with performance feedback. Participants set a short-term goal each week and a long-term goal to achieve upon completion of the study. The study incorporated the use of the Nike^TM + SportKit for automated recording of the distance of each run. Results of the current study demonstrated for all …

Inter-Rater Reliability Of The Anxiety Disorders Interview Schedule For Dsm-Iv In High Functioning Children And Adolescents With Autism Spectrum Disorder, Danielle Ung

USF Tampa Graduate Theses and Dissertations

The present study examined inter-rater agreement on the Anxiety Disorder Interview Schedule DSM-IV Child and Parent Interview (ADIS-IV-C/P) in youth with autism spectrum disorder and if age and ASD diagnosis moderated agreement. Diagnoses established for 70 7-16-year-old youth with ASD during a live administration of the ADIS-IV-C/P were compared to diagnoses identified by a second rater after listening to audiotaped recordings of the interviews. Inter-rater agreement on parent and child reports was excellent (k=1.00). Inter-rater agreement on principal diagnoses (k=0.91), individual anxiety diagnoses (k=0.85-0.97), and other comorbid diagnoses (i.e., major depressive disorder, dysthymia, oppositional defiant disorder, attention deficit hyperactivity disorder-Inattention/Hyperactivity/Combined …

Understanding Involuntary Job Loss Among Former Newspaper Staff Photographers, Ryan K. Morris

USF Tampa Graduate Theses and Dissertations

This study examines former newspaper photographers' experience with being laid-off from their staff positions. The purpose was to identify emerging themes within the context of involuntary job loss, job satisfaction, and occupational identity via interviews with 8 photojournalists who experienced the phenomenon of being laid-off. The newspaper industry has long been considered both the starting point for young and aspiring photojournalism careers and the most consistent and stable venue for an income. Yet recent changes in the media landscape, particularly economic stress on traditional business models and rapid adoption of digital technology sway the occupational future of photojournalism within newsrooms. …

Characterization Of The Lone Extracytoplasmic Function Sigma Factor, Ós, And Its Role In The Staphylococcus Aureus Virulence And Stress Responses, Halie Kay Miller

USF Tampa Graduate Theses and Dissertations

Previously our laboratory had identified a novel component of the Staphylococcus aureus regulatory network, an extracytoplasmic function ó factor, óS, involved in stress response and disease causation. Here we present additional characterization of óS, demonstrating a role for it in protection against DNA damage, cell wall disruption and interaction with components of the innate immune system. Promoter mapping reveals the existence of four unique sigS start sites, one of which appears to be subject to auto-regulation. Transcriptional profiling revealed that sigS expression remains low in a number of S. aureus wild-types, but is upregulated in the highly mutated strain RN4220. …

Neuron To Microglia Communication; A Study Of Cx3cl1 Signaling Implications In Cognitive Function, Inflammation, And Neurodegeneration, Joshua M. Morganti

USF Tampa Graduate Theses and Dissertations

As a consequence of aging, the brain is subject to chronic neuroinflammatory conditions. The resident immune cells of the brain, microglia, act similarly to peripheral macrophages to protect the brain from insults, infection, and physical trauma. However, without proper regulation of their respective host defense mechanisms, these actions can become neurotoxic. In the healthy brain neurons have several signaling systems that directly interact with microglia in order to maintain a calming influence upon their actions, one of particular interest is the chemokine CX3CL1. This chemokine is found predominantly on neurons, while its cognate receptor CX3CR1 is found exclusively on microglia. …

Understanding Social Integration And Student Involvement As Factors Of Self-Reported Gains For African American Undergraduate Women, Edna Jones Miller

USF Tampa Graduate Theses and Dissertations

Diversity of student populations within higher education has considerably increased, particularly for women and minority populations, which is indicative of greater access to education toward a college degree. However, increased diversity of student populations has introduced a new set of challenges for higher education administrators in that it is becoming increasingly difficult for administrators to maintain current educational methods when considering the changing needs of matriculating students. As a result, higher education institutions are compelled to strategize beyond the "one-size-fits all" approach in the way teaching and support services are delivered in order to provide a more holistic approach to …

Hospice Nurses- Attitudes And Knowledge About Pain Management, Amie Jacqueline Miller

USF Tampa Graduate Theses and Dissertations

It has been well established that many people will suffer with pain at the end of life, and untreated pain contributes to reduced quality of life. Many barriers contribute to this issue including a lack of knowledge in nurses who care for dying patients. Many nurses in general practice settings do not possess adequate knowledge about basic pain management principles; and the same may be true about hospice nurses despite the assumption that hospice nurses are more adept at pain management. Contributing to this problem may be the attitudes that nurses, including hospice nurses, have regarding pain and its management. …

Examining The Relationship Between Participatory Democracy And Nonwhite Domestic Workers In Porto Alegre, Brazil: Issues Of Race, Class And Privilege, Alexis Nicole Mootoo

USF Tampa Graduate Theses and Dissertations

Brazil is a nation that has professed to be a `racial democracy' such that race categories are not recognized. This implies that every citizen experiences equal access from a political, social and economic point of view, irrespective of skin color. Nevertheless, palpable racial inequalities exist in Brazil such that there is a primarily white elite class while Brazilians of African descent are typically poor. Male dominance is a worldwide phenomenon. When racial inequities are coupled with male dominance, Brazilian women of African origins suffer as they occupy the lowest socio-economic strata, which often remand them to work as domestics. Some …

Beyond Practice And Constraint: Toward Situating Female Sexual Agency On St. Croix, Usvi, Jamae F. Morris

USF Tampa Graduate Theses and Dissertations

Women are shaped by the social structure, but they are not simply passive products. They act. They respond. They pursue. This holds true for many aspects of women's complex and dynamic lives, including their sexual health. Daily, women negotiate social expectations, individual proclivities and desires, and the need to provide for themselves and their families. Through the use of ethnographic methodology, focusing on three major social pillars--the regulation of the female body, the organization of social space, and the structuring of gender--this investigation, based on the island of St. Croix, USVI, seeks to offer an ethnographic assessment of women's attempts …

Modification Of Trophic Links Between An Omnivore And Macroinfaunal Prey From Sandy Beaches Of Differing Physical Regimes, Kristina Joan Morrow

USF Tampa Graduate Theses and Dissertations

Sandy beach ecosystems have been studied worldwide; however, ecological data are sparse for the extensive barrier islands of Florida. Accordingly, I investigated the feeding patterns of the ghost crab (Ocypode quadrata), a dominant omnivore inhabiting beaches along the Floridian coast. Density data was collected for ghost crabs and swash macroinfaunal prey. In addition, I utilized stable isotopes in conjunction with the mixing models IsoSource and SIAR to characterize diets of ghost crabs across three barrier islands in spring and summer 2011. Results showed that ghost crabs at Cayo Costa feed primarily on swash macroinfauna, while those from Anclote Key shifted …

Occurrence, Toxicity, And Diversity Of Pseudo-Nitzschia In Florida Coastal Waters, Sheila O'Dea

USF Tampa Graduate Theses and Dissertations

Domoic acid (DA), a potent neurotoxin that has the potential to cause amnesic shellfish poisoning (ASP), is produced by members of the marine diatom genus Pseudo-nitzschia. Outbreaks of ASP in humans and of DA poisoning in birds and marine mammals have been reported across the United States and Canada since the late 1980's. Pseudo-nitzschia species can be extremely abundant in Florida waters, with densities often exceeding 10⁶ cells/L, and sometimes exceeding 10⁷ cells/L. Based on preliminary data, it is evident that at least nine species of Pseudo-nitzschia are found in Florida coastal waters. At least six of …

Training Deictic Relational Responding In People With Schizophrenia, John O'Neill

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to replicate and extend recent findings in the functional contextual literature by 1) establishing complex deictic relational responding skills in 3 persons diagnosed with Schizophrenia and mild-moderate Mental Retardation and 2) assessing generalization through pre and post-instructional measures of Social Anhedonia and Theory of Mind functioning. Results suggest that increasingly complex levels of deictic relational responses were acquired and mastered by all 3 participants and that generalization extended to the Deceptive Container Task (ToM levels 4 & 5) and Hinting Task. Support is provided for the notion that perspective taking skills might be shaped …

Global Csr And Photographic Credibility: Exploring How International Companies Portray Efforts Through Photographs In Csr Reports, Janel Lynn Norton

USF Tampa Graduate Theses and Dissertations

We are living in the age of the visual. Imagery is an important element in constructing and deriving meaning through symbols, colors, and context. Images may hold persuasive power, be used as evidence, or simply provide a moment of beauty. Organizations rely on photographs to help them convey an image to their stakeholders within annual reports. Telling an organizations' story through photographs has become an intrinsic part of their efforts to convey sustainability. We live in the age of transparency, and organizations that construct an image that is not truthful will face consequences in today's socially connected and conscious world. …

Live Versus Recorded: Exploring Television Sales Presentations, Christopher Craig Novak

USF Tampa Graduate Theses and Dissertations

Abstract

This is an exploratory study that poses the questions and discussion regarding live and recorded sales presentations via television. With its rich history, it appears that live television has more types of appeal that will get the shopper buying products. However, the recorded and edited presentation played back on television has had its share to grab the shopper's attention. Research questions are presented to determine which broadcasting method is stronger by examining factors related to home shopping such as credibility, authenticity, involvement, urgency, informativeness, entertaining value, sense of real time, spontaneity and interactivity. Additional questions will look at the …

The Yellow Flag Of Quarantine: An Analysis Of The Historical And Prospective Impacts Of Socio-Legal Controls Over Contagion, Peter Oliver Okin

USF Tampa Graduate Theses and Dissertations

Under the ancient threat of morbidity and mortality from infectious diseases, human societies have responded for thousands of years by imposing social containment measures. Even before theorists and laymen recognized the existence of pathogenic organisms, or fully understood the principles of contagion, many societies and individuals did empirically infer that such diseases were transmissible from human to human (as well as sometimes between animals and humans). Having few effective technological measures to prevent or treat contagions, they did devise a variety of socio-behavioral procedures for separating overtly ill persons or suspected disease-carriers from nominally uninfected people. These methods included various …

Maternal Immune Dysregulation In The Pathogenesis Of Neurodevelopmental Disorders: Interleukin-6 As A Central Mechanism And Therapeutic Target Of Flavonoids, Ellisa Carla Parker-Athill

USF Tampa Graduate Theses and Dissertations

Activation of the maternal immune system and resultant maternal cytokine expression due to prenatal infection has been implicated as a significant contributor to the pathology of neuropsychiatric and neurodevelopmental disorders such as schizophrenia and Autism Spectrum Disorder (ASD). Increased maternal interleukin-6 (IL-6) expression, observed clinically and in animal models of prenatal infection, and resultant activation of key signaling pathways, has been shown to be a biological indicator of pathology, and a central component of the pathological mechanism. In animal models of prenatal infection and clinically in pregnancy disorders hallmarked by immunological irregularities and increased IL-6 expression, inhibition of IL-6 has …

Field And Laboratory Comparison Of The Hydraulic Performance Of Two Ceramic Pot Water Filters, Duncan Peabody

USF Tampa Graduate Theses and Dissertations

Currently 884 million people worldwide are living without access to an improved source of drinking water (WHO/UNICEF, 2011). Piped-water on premises is the ultimate goal of World Health Organization (WHO) due to the ability to treat all of the water and distribute it safely in pressurized pipes. However, Household Water Treatment and Safe Storage (HWTS) is an option for improving the quality of drinking water where that infrastructure is not yet developed, especially where there is a risk of recontamination between point of collection and point of use (Clasen, 2006).

This study analyzed one such HWTS, the ceramic pot water …

Nature's Classroom: An Ethnographic Case Study Of Environmental Education, Dorothea Jody Owens

USF Tampa Graduate Theses and Dissertations

NATURE'S CLASSROOM: AN ETHNOGRAPHIC CASE STUDY OF ENVIRONMENTAL EDUCATION

DOROTHEA JODY OWENS

ABSTRACT

This ethnographic case study examines the dynamic relationship between culture and environmental education within the context of a specific Florida-based public education program. The School District of Hillsborough County (SDHC) offers the program through a three-day field trip to the study site, Nature's Classroom, and accompanying classroom curriculum. The site is located in Thonotosassa on the Hillsborough River, and serves approximately 13,500 to 15,000 sixth grade students annually. The key purpose of the research was to explore public education in a local setting as a vehicle for …