Digital Commons Network^™

Composition Of Atomic-Obligation Security Policies, Yan Cao Albright

USF Tampa Graduate Theses and Dissertations

Existing security-policy specification languages allow users to specify obligations, but open challenges remain in the composition of complex obligations, including effective approaches for resolving conflicts between policies and obligations and allowing policies to react to the obligations of other policies.

An atomic obligation requires that either all or none of the included actions are executed. Atomicity can be extended to include the decision to permit or deny an event after the obligation executes. For many practical policies, obligation atomicity is necessary for correctness. Executing only the parts of such an obligation violates its atomicity which can lead to an undesirable …

A Comparison Of Verbal Feedback And Video Feedback To Improve Dance Skills, Shreeya Sudhir Deshmukh

USF Tampa Graduate Theses and Dissertations

Research has shown that video feedback and verbal feedback can improve a variety of skills related to several sports. The purpose of this study was to compare the effectiveness of these two forms of feedback for improving dance skills. In this study, the dance skills of three participants were assessed. Verbal feedback and video feedback were implemented using a multiple baseline across participants with an embedded alternating treatments design to allow for a direct comparison of the interventions. The results indicated that verbal feedback was more effective for one participant and video feedback was more effective for one participant. More …

Implementation Of Large-Scale Anaerobic Digestion Of Food Waste At The University Of South Florida, Karamjit Panesar

USF Tampa Graduate Theses and Dissertations

Food waste represents a major sustainability issue in the United States. Food waste represents 18% of landfill space and is the largest contributor of landfill methane emissions. US EPA’s Food Recovery Hierarchy recommends alternatives to landfilling food waste, including source reduction, food donation and anaerobic digestion.

The Student Green Energy Fund (SGEF) Food Recovery Project aims to follow suggestions outlined by the US EPA Food Recovery Hierarchy to encourage the University of South Florida (USF) to become a zero-waste campus. A multi-disciplinary approach aims to source reduce wasted food, look for opportunities for source reduction and anaerobically digest any remaining …

The Design And Development Of A Wrist-Hand Orthosis, Amber Gatto

USF Tampa Graduate Theses and Dissertations

Individuals with an incomplete C5-C7 spinal cord injury (SCI) lose grasping abilities but wrist function is almost universally retained. Most rehabilitation techniques apply the tenodesis effect, however, current tenodesis wrist-hand orthoses (WHOs) engage only the thumb and index finger, meaning that only 20% of activities of daily living (ADLs) can be completed.

This study tested the feasibility of a student-designed powered WHO by testing the device on healthy subjects to see if they could complete a variety of ADLs. A simulation software was then used to analyze wrist, thumb, and index finger joint angles. Additionally, an Assistive Technology Survey was …

Van Hiele Problem Solving Logic Levels Applied To Force Concept Inventory Problems Using The Resources Framework, Charles Mason Hemphill

USF Tampa Graduate Theses and Dissertations

Students bring their logical reasoning and previous knowledge to the study of physics. Previous studies have examined types and levels of students’ reasoning as applied to answering conceptual physics questions. This study compared the van Hiele theory of levels of logic in two different disciplines: school geometry and conceptual physics. Two research approaches were employed: quantitative and qualitative analysis. In a quantitative approach, the van Hiele geometry test’s correlation to gains in conceptual physics understanding, as measured by the Force Concept Inventory (FCI), was compared to Lawson’s Classroom Test of Scientific Reasoning (CTSR), SAT, ACT, and a general algebra facility …

Evaluating The Use Of Alternative Seating With Children At Risk For Emotional Behavioral Disabilities, Corinne E. Bloom Williams

USF Tampa Graduate Theses and Dissertations

Characteristics of emotional and behavioral disabilities (EBD) include learning difficulties that cannot be explained by intellectual, sensory, or health factors and an inability to build or maintain satisfactory interpersonal relationships with peers and teachers. Often, children with EBD have a tendency to have negative experiences in school and engage in challenging behavior in the classroom. This could stem from their lack of desire or motivation to succeed, which is often found in individuals with EBD. One possible antecedent manipulation, alternative seating, may reduce problem behavior and involves exchanging the typical seating and tables in classrooms for different types of seating …

Pre-Class Physical Activity: Does Choice Expand Its Effect On Disruptive Behavior?, Olivia Mulligan

USF Tampa Graduate Theses and Dissertations

Disruptive behaviors in the classroom have a negative impact on academic engagement and are related to teacher burnout (Abel & Sewell, 1999). Antecedent-based interventions have been shown to be effective in reducing disruptive behaviors (Watson, Timperio, Brown, Best, & Hesketh, 2017) without the need to interrupt academic instruction (Rosenthal-Malek & Mitchell, 1997). Physical activity is an example of an effective antecedent intervention (Lang, et al., 2010), however its efficacy may be related to the type of physical activity (Kern, Koegel, & Dunlap, 1984). The purpose of this study was to evaluate the effect of pre-class physical activity on disruptive classroom …

Use Of Pyramidal Training In A Juvenile Residential Facility: Teaching Staff To Self-Monitor Use Of Behavior Specific Praise, Zoe I. Hay

USF Tampa Graduate Theses and Dissertations

Juvenile residential facilities are punitive and restrictive limiting youth opportunity to learn and engage in adaptive behavior. Staff training is necessary to reduce the punishment-based behavior management practices that are often in place and to increase reinforcement of appropriate behavior. Pyramidal training is a cost-effective and efficient strategy to train multiple levels of staff of behavior analytic skills. In this study a pyramidal training approach was used to train juvenile residential level 1 staff to deliver training to level 2 staff, using behavioral skills training (BST) procedures and to implement self-monitoring procedures to improve their practices. A multiple baseline across …

In A Dilemma: How Did Moscow Make The Decision Of The Soviet Air Force To Enter The Korean War?, Shiyao Zhang

USF Tampa Graduate Theses and Dissertations

When China sent troops into North Korea to fight the UN forces in 1950, the Soviet Union's secret air cover for Chinese troops became critical support. However, the Soviet Union's determination to provide support was not easy. China and the Soviet Union's decision on this issue changed many times, and it was not resolved until the Chinese leader decided to send troops to North Korea on October 13, 1950. At the same time, the United States was aware of the secret involvement of the Soviet Union and made corresponding choices.

The Effects Of Feudalism On Medieval English Mobility: A Biological Distance Study Using Nonmetric Cranial Traits., Jonathan H. Barkmeier

USF Tampa Graduate Theses and Dissertations

Social and environmental factors play a key role in determining biocultural phenomena that can be observed on skeletal populations. Genetic markers in the form of nonmetric traits can help understand underlying questions about population movement and subsequent gene flow. During the medieval period in England, feudalism may have limited migration and created sedentary lifestyles for the peasant class who lived and worked on land owned by the nobility. By using a biological distance model, questions about the interactions between rural and urban populations, as well as the restrictive economic system that was in place during the Middle Ages, can be …

9/11 Then And Now: How The Performance Of Memorial Rhetoric By Presidents Changes To Construct Heroes, Kristen M. Grafton

USF Tampa Graduate Theses and Dissertations

This study is concerned with American presidential rhetoric at the cross-section of hero rhetoric and memorial address. It analyzes presidential memorialization of the terrorist attacks on September 11, 2001. 9/11 is arguably the most significant tragedy in recent American history. The purpose of this study is to identify the type of hero each president since 9/11 has attempted to construct of himself for the public and discuss the rationale behind that hero construction. To complete this objective, I analyze the second 9/11 memorial speech from the presidencies of Bush, Obama, and Trump for hero construction. A close reading examining the …

Toward Culturally Relevant Emotion Detection Using Physiological Signals, Khadija Zanna

USF Tampa Graduate Theses and Dissertations

Research shows that emotional distress has a statistically significant impact on a student’s grade point average and intent to drop out of college. Because students of different races have varying college experiences, it is important to understand the emotional experiences of different racial groups to better support students’ needs and academic success. In this work, we explore several physiological responses to ten different emotional stimuli captured from 140 students. We employ unsupervised learning via the Density-Based Spatial Clustering of Applications with Noise (DBSCAN) algorithm and supervised learning via Random Forests and Support Vector machines to analyze clustering partitions and classification …

Evaluating Effects Of Cancer Genetic Counseling On Several Brief Patient Impact Measures, Alyson Kneusel

USF Tampa Graduate Theses and Dissertations

Many outcomes for assessing cancer genetic counseling (GC) utility have been proposed, with few studies evaluating multiple, theory-based, brief patient-reported experience and outcome measures simultaneously as part of a single study. We conducted a pilot study in which patients seen for pre-test cancer GC took a survey before and after their GC session to evaluate the session’s impact on multiple patient impact measures and assess the relationship between these measures. Measures based on the self-determination theory (SDT) assessed three basic needs including: 1) perceived autonomy support, 2) relatedness to the provider, and 3) competence to make a decision. SDT posits …

Instrumentalization Theory: An Analytical Heuristic For A Heightened Social Awareness Of Machine Learning Algorithms In Social Media, Andrew R. Miller

USF Tampa Graduate Theses and Dissertations

New innovations in information management and communication technologies have produced technological assemblages which have radically altered the way people socialize and interact with the world. The most significant and ubiquitous of these technologies is what is colloquially referred to as ‘machine learning.’ Like most, if not all, technologies, machine learning models are neither wholly good nor bad. Their functional ethics are largely determined by the context in which they are employed. However, their ubiquity demands that we develop a heightened social consciousness of the way machine learning simultaneous constrains, manipulates and democratizes social processes. In order to develop better social …

The Development And Testing Of The Genetic Counseling Communication Checklist (Gcc): A Novel Process Measure, Katherine N. Hehmeyer

USF Tampa Graduate Theses and Dissertations

Given that genetic counseling (GC) is a discipline that relies on communication to help people understand and adapt to the genetic contribution of disease, a practical method of comprehensively documenting GC communication strategies is needed to better understand the communication strategies utilized by genetic counselors and the variability that exists within the process. To this end, we created a novel process measure called the Genetic Counseling Communication Checklist (GCC), utilizing previously validated measures, communication/counseling theories, and research findings. Two researchers independently coded six video-taped mock GC sessions using the GCC. Following each session, the GCC was further modified to improve …

Developing And Facilitating Socioscientific Issues Based Science Lessons: Elementary Preservice Teachers’ Experiences, Melanie Kinskey

USF Tampa Graduate Theses and Dissertations

Instruction focused around socioscientific issues (SSI) has been found to improve skills for scientific literacy among K – 12 students. Unfortunately, teachers and preservice teachers are reluctant to implement SSI during science instruction due to a lack of self-efficacy or fear of the nature of controversial issues. In response to this obstacle, many researchers have begun work with helping preservice teachers become prepared to facilitate SSI. While there are findings from existing research that contribute to the overall state of preparing preservice teachers to facilitate SSI, perhaps the most influential is the assertion that preservice teachers need formal SSI training …

Investigation Of Retention Versus Export Of Planktonic Fish Eggs In The Northeastern Gulf Of Mexico, Bich Vi Viviane Nguyen

USF Tampa Graduate Theses and Dissertations

Planktonic fish eggs can be reliably identified with DNA barcoding, and their distribution and abundance can be monitored. Passive drifting fish eggs can be advected by ocean currents and as a result, can either be locally retained or exported away from the West Florida Shelf (WFS). Investigating their retention or export helps in the interpretation of egg abundance trends and in understanding their distribution in long-term surveys. The present investigation was performed in two steps using a combination of biological and physical oceanographic methods. First, fish fecundity of three species (Red Snapper, Vermilion Snapper, and Sand Perch) was assessed, first, …

Asking Why: Analyzing Students' Explanations Of Organic Chemistry Reaction Mechanisms Using Lexical Analysis And Predictive Logistic Regression Models, Amber J. Dood

USF Tampa Graduate Theses and Dissertations

In order to evaluate student understanding of chemical reactions and reaction mechanisms, it is necessary to ask students to construct written or oral explanations of mechanistic representations. Studies have shown that students can reproduce pictorial representations of organic chemistry mechanisms without understanding the meaning of the representations. Grading written assessments is time-consuming, which limits their use in large-lecture courses. To address this limitation, lexical analysis and logistic regression techniques can be used to develop models that predict human scoring for constructed-response items. In this dissertation, students’ responses to constructed-response items about what is happening and why in organic chemistry reaction …

The Role Of Financial Insecurity And Expectations On Perspectives Of Mental Health Services Among Refugees, Jacqueline M. Siven

USF Tampa Graduate Theses and Dissertations

This dissertation examines how perspectives of mental health among refugees are situated within the realities of the refugee resettlement system, a population for which information on this issue is quite limited. Through in-depth interviews and participant observation with Congolese refugees and non-Congolese refugee-serving professionals in a major Florida city, this dissertation examines how perceptions of mental health and mental health services among refugees were affected by financial insecurity and disparities in expectations. Local Congolese refugees expected the American Dream; they believed that once they arrived they would find prosperity through hard work. Instead they experienced frustration and distress because the …

Kinesthetically Speaking: Human And Animal Communication In British Literature Of The Long Eighteenth Century, Dana Jolene Laitinen

USF Tampa Graduate Theses and Dissertations

While scholars have studied talking animals in British children’s literature of the long eighteenth century, little attention has been given to cross-species conversations. Thus, my research starts with the following questions: what does it mean when humans talk to animals in literary texts? What do representations of interspecific communication in eighteenth-century British literature accomplish? Interspecific communication in the literary works of this study may be understood in the context of the philosophy of sensibility’s debt to French Renaissance humanist Michel de Montaigne, particularly his arguments about animal semiosis in An Apology for Raymond Sebond. I argue that interspecific conversations challenge …

Mechanisms Of Carbon Movement And Stabilization In Mangrove Wetlands, Carey Schafer

USF Tampa Graduate Theses and Dissertations

Mangrove forests have higher rates of carbon storage per unit area than any other coastal or terrestrial habitat, largely due to their significant soil stocks. More effort has been placed on quantifying mangrove soil carbon stock, the amount of carbon stored in the upper meter of mangrove soils, than identifying the processes governing in situ soil organic carbon (SOC) cycling and stabilization. An understanding of the mechanisms related to carbon transport and stability is necessary to constrain current wetland carbon stocks and to determine how sea level rise will impact future carbon stores. This study uses a variety of radiometric …

Algorithms To Profile Driver Behavior From Zero-Permission Embedded Sensors, Bharti Goel

USF Tampa Graduate Theses and Dissertations

In this dissertation, we design algorithms to profile driver behavior from zero-permission sensors embedded in modern smartphones and wearables. These sensors are typically the accelerometer, gyroscope, magnetometer, pressure sensor and a few more than are now available in most modern smartphones and wearables. In order to profile driving behavior, we devised algorithms for detecting distraction while driving due to the use of modern-day smartphones (e.g., calling, texting and reading while driving) in real-time.

To do so, we conduct an experiment with 16 subjects on a realistic driving simulator, where each subject, where each subject carries a smartphone and a wearable …

Differential Reinforcement Without Extinction: An Assessment Of Sensitivity To And Effects Of Reinforcer Parameter Manipulations, Hannah Lynn Macnaul

USF Tampa Graduate Theses and Dissertations

Individuals with an Autism Spectrum Disorder (ASD) often engage in problem behavior (e.g., aggression, property destruction, self-injurious behavior; Horner, Carr, Strain et al., 2002) that may limit access to traditional social and education settings, impact their health, and pose a risk to their safety and the safety of others. One of the most common interventions used to treat problem behavior is differential reinforcement of alternative behavior (DRA; Cooper, Heron, & Heward, 2007), which are often used in combination with other interventions such as extinction (Shirley, Iwata, Kahng, Mazaleski, & Lerman, 1997). However, implementation of extinction may pose an ethical dilemma …

Assessment Of Land Cover Change In St. Martin’S Marsh Aquatic Preserve, Florida, Usa, Katie Wagner

USF Tampa Graduate Theses and Dissertations

St. Martin’s Marsh Aquatic Preserve (SMMAP) is a 28,461 acre (115.18 km2) preserve located on the coast of Citrus County, Florida, USA. There has been no published research that focused on coastal change on this unique coast. This thesis research focuses on coastal land cover change that has occurred within the preserve from 1988 to 2018. Multitemporal Landsat images were classified using a support vector machine (SVM) classification, while changes in vegetation were evaluated using the normalized difference vegetation index (NDVI). Field research was conducted to examine nineteen sites for classification training and test data and notes on habitat composition. …

Towards Safe Power Oversubscription And Energy Efficiency Of Data Centers, Sulav Malla

USF Tampa Graduate Theses and Dissertations

Data centers contribute to approximately 1% of the global electricity consumption, and billions of dollars are spent annually worldwide in construction of new data centers to meet the rising demand for cloud-based services. Given the high cost of construction, the power infrastructure in a data center is typically oversubscribed. Power oversubscription leads to efficient use of data center power hierarchy while simultaneously reducing the power provisioning cost. Power overload situations can occur in oversubscribed data centers. Power overload can lead to power capping of servers or even power outages – both of which degrade the performance of the services offered …

Algorithms And Framework For Computing 2-Body Statistics On Graphics Processing Units, Napath Pitaksirianan

USF Tampa Graduate Theses and Dissertations

Various types of two-body statistics (2-BS) are regarded as essential components of low-level data analysis in scientific database systems. In relational algebraic terms, a 2-BS is essentially a Cartesian product between two datasets (or two instances of the same dataset) followed by a user-defined aggregate. The quadratic complexity of these computations hinders the timely processing of data. Thus using modern parallel hardware has become an obvious solution to meet such challenges. This dissertation presents our recent work in designing and optimizing parallel algorithms for 2-BS computation on Graphics Processing Units (GPUs). The unique architecture, however, provides abundant opportunities for optimizing …

Orders Of Normativity: Nietzsche, Science And Agency, Shane C. Callahan

USF Tampa Graduate Theses and Dissertations

In this dissertation I set out to address the “scope problem” in Nietzsche scholarship. In the secondary literature, the scope problem is characterized as a problem for Nietzsche, who seems deeply skeptical about nearly every item of his inherited western metaphysical toolkit. If his skepticism about western metaphysics penetrates all dimensions of his thought, how can he motivate a reader to also reject western metaphysics without himself committing to some of it? I stipulate that answering the scope problem means explicating what Nietzsche views as the general source of normativity—it is there that we can understand the resources Nietzsche is …

Isotope-Based Methods For Evaluating Fish Trophic Geographies, Julie L. Vecchio

USF Tampa Graduate Theses and Dissertations

Data on the movement and diets of fish during a variety of life stages are important inputs to fisheries stock assessments and marine ecosystem models. Stable isotopes may provide previously inaccessible information on movement and diet of a variety of managed and forage fish species. Here I used several novel means of interpretation for stable isotope data to infer diets and movements of several important fisheries species over both short (weeks to months) and long (lifetime) timescales. To calculate a constant partitioning offset (CPO) between the δ¹⁵N of muscle and of liver tissue, I conducted a literature search …

Stable Adaptive Control Systems In The Presence Of Unmodeled And Actuator Dynamics, Kadriye Merve Dogan

USF Tampa Graduate Theses and Dissertations

In adaptive control of physical systems, it is well-known that the presence of actuator and/or unmodeled dynamics in feedback loops can yield to unstable closed-loop system trajectories. Motivated by this standpoint, this dissertation presents novel model reference and distributed adaptive control architectures with stability and performance guarantees for uncertain sole and multiagent dynamical systems with unmodeled and/or actuator dynamics.

Specifically, model reference and distributed adaptive control architectures are powerful theoretical tools for both sole and multiagent systems, where they have the capability to suppress the effect of exogenous disturbances and system uncertainties for achieving a desired level of closed-loop system …

The Concept Of Freedom In American Literature At The Dawn Of The Nation, Mykhailo Pylynskyi

USF Tampa Graduate Theses and Dissertations

This thesis analyzes American literature dedicated to the American Revolutionary War (1775-1783) and the events which led to it. The overarching goal of the analysis is to lay out a coherent account of the concept of freedom in American literature of that time period. To reach this goal I will use The Second Treatise of Government by John Locke as a main philosophical text, which outlines the key elements of political freedom. As the main literature pieces of the selected time period, Common Sense by Thomas Paine and The Liberty Song were chosen. I will also use multiple songs by …