Digital Commons Network^™

Attentional Window And Global/Local Processing, Steven Peter Schultz

USF Tampa Graduate Theses and Dissertations

How does the focus of attention influence the encoding of information? Research has shown that size and allocation of the attentional window has an influence on what information is attended to or missed. The size-scale of features also effects processing of visual information. Previous research involving hierarchical stimuli suggests precedence for global features. In the present experiment, I investigated the influence of attentional window size on accuracy of encoding hierarchical stimuli at the global and local level. Here I introduce a new method for manipulating the size of the attentional window and for collecting unconstrained responses. At the start of …

The Restrictive Deterrent Effect Of Warning Banners In A Compromised Computer System, Christian Jordan-Michael Howell

USF Tampa Graduate Theses and Dissertations

System trespassing, which refers to the unauthorized access of computer systems, has rapidly become a worldwide phenomenon. Despite growing concern, criminological literature has paid system trespassing little attention. The current study utilizes data gathered from a Chinese computer network to examine system trespasser behavior after exposure to one of three warning messages: an altruistic message used for moral persuasion (warning 1), a legal sanction threat (warning 2), and an ambiguous threat (warning 3). More specifically, the current study examines the temporal order of various keystroke commands to determine if some keystroke commands are used as a tactical skill to avoid …

Two Essays On Lottery-Type Stocks, Yun Meng

USF Tampa Graduate Theses and Dissertations

In the first essay titled “Monthly Cyclicality in Retail Investors’ Liquidity and Lottery-type Stocks at the Turn of the Month”, we find that the well-documented underperformance of lottery stocks masks a within-month cyclical pattern. Demand for lottery stocks increases at the turn of the month especially in areas whose demographic profile resembles that of the typical lottery-ticket buyers (i.e., gamblers) driving their prices higher at the turn of the month. This effect is particularly pronounced among firms located in areas whose demographic profile resembles that of the typical lottery-ticket buyer and propelled by the within-month cyclicality of local investors’ personal …

Association Of Known And Unknown Oncoviruses With External Genital Lesion (Egl) Manifestations In A Multinational Cohort Of Men, Shams Ur Rahman

USF Tampa Graduate Theses and Dissertations

Human papillomaviruses (HPV) are double-stranded, DNA, epitheliotropic viruses that infect skin and mucosal membranes. Over 200 types of HPV have been identified and classified into alpha (α), beta (β), gamma (γ), mu (µ), and nu (ν) genera. HPV in the genus α mainly infect mucosal membranes, cause the majority of the ano-genital cancers, and are widely studied. However, epidemiology of HPV in the other genera, which mainly infect skin, is poorly understood. Few studies have reported the seroprevalence of cutaneous HPV among healthy individuals, and to date, no study has prospectively examined the association between cutaneous HPV seropositivity and development …

Alumni Narratives On Computational Geology (Spring 1997 – Fall 2013), Victor J. Ricchezza

USF Tampa Graduate Theses and Dissertations

Recent meetings and publications have discussed what geoscience undergraduates should learn for professional success, and among other items, have identified several quantitative skills and habits of mind as being necessary for geoscience students; many of these items are commonly associated with Quantitative Literacy (QL). The Computational Geology course in the geology department has been evolving at USF for 20 years. The course teaches QL in a geologic setting independent of specific core geology topics. This course has long preceded the national acknowledgment of the need for what it teaches within the field. As the first of a series of related …

Determining The Effectiveness Of Soil Treatment On Plant Stress Using Smart-Phone Cameras, Anurag Panwar

USF Tampa Graduate Theses and Dissertations

Plants are vital to the health of our biosphere, and effectively sustaining their growth is fundamental to the existence of life on this planet. A critical aspect, which decides the sustainability of plant growth is the quality of soil. All other things being fixed, the quality of soil greatly impacts the plant stress, which in turn impacts overall health. Although plant stress manifests in many ways, one of the clearest indicators are colors of the leaves. In this thesis, we conducted an experimental study in a greenhouse for detecting plant stress caused by nutrient deficienceies in soil using smartphone cameras, …

The Effects Of Cognitive Training Among Individuals With Neurodegenerative Diseases, Elise Gabriela Valdes

USF Tampa Graduate Theses and Dissertations

With the growing older adult population, neurodegenerative diseases common in old age such as mild cognitive impairment (MCI) or Parkinson’s disease (PD) are becoming increasingly germane areas of research. Pharmacological treatments have thus far been unsuccessful in treating cognitive decline associated with these neurodegenerative disorders. Alternative interventions, such as cognitive training programs, have shown promise. The current dissertation contains three papers examining cognitive interventions in neurodegenerative diseases. The first paper examined the longitudinal effects of cognitive speed of processing training (SPT) among those with PD. Results showed that training gains seen at initial post-test were maintained three months later. The …

The Design And Testing Of A Novel Batch Photocatalytic Reactor And Photocatalyst, Shawn Sasser

USF Tampa Graduate Theses and Dissertations

With an ever-increasing human population, the importance in having sustainable energy resources is becoming increasingly evident, as the current energy habits have brought about massive atmospheric pollution in the form of CO₂ emissions, resulting in a rise in the average global temperature. To battle the effects of climate change, many alternative energy resources have been investigated. Among these, photocatalytic conversion of CO₂ to renewable hydrocarbon fuels such as methane and methanol is one of the most desirable, as it provides the opportunity to utilize the sun’s energy to convert CO₂ to renewable fuels. The work in this …

Applications Of Satellite Geodesy In Environmental And Climate Change, Qian Yang

USF Tampa Graduate Theses and Dissertations

Satellite geodesy plays an important role in earth observation. This dissertation presents three applications of satellite geodesy in environmental and climate change. Three satellite geodesy techniques are used: high-precision Global Positioning System (GPS), the Gravity Recovery and Climate Experiment (GRACE) and Interferometric Synthetic Aperture Radar (InSAR). In the first study, I use coastal uplift observed by GPS to study the annual changes in mass loss of the Greenland ice sheet. The data show both spatial and temporal variations of coastal ice mass loss and suggest that a combination of warm atmospheric and oceanic condition drove these variations. In the second …

Understanding The Complexity Of Product Returns Management: A Complex Adaptive Systems Theory Perspective, Jennifer Anne Espinosa

USF Tampa Graduate Theses and Dissertations

The core essence of a marketing transaction is the exchange of value between two parties. Quite often, the exchange of value describes a customer purchasing a product from a company. When purchasing products, the exchange of value can often fail due to product defects or customer dissatisfaction. When the marketing exchange fails, customers often desire an avenue for recourse to right the exchange imbalance. Accepting and quickly processing product returns represents a strategic tool companies can leverage to maintain healthy relationships with customers, despite an exchange failure. Effectively managing product returns also benefits companies financially, by reducing inventory levels, costs, …

Time Dependent Kernel Density Estimation: A New Parameter Estimation Algorithm, Applications In Time Series Classification And Clustering, Xing Wang

USF Tampa Graduate Theses and Dissertations

The Time Dependent Kernel Density Estimation (TDKDE) developed by Harvey & Oryshchenko (2012) is a kernel density estimation adjusted by the Exponentially Weighted Moving Average (EWMA) weighting scheme. The Maximum Likelihood Estimation (MLE) procedure for estimating the parameters proposed by Harvey & Oryshchenko (2012) is easy to apply but has two inherent problems. In this study, we evaluate the performances of the probability density estimation in terms of the uniformity of Probability Integral Transforms (PITs) on various kernel functions combined with different preset numbers. Furthermore, we develop a new estimation algorithm which can be conducted using Artificial Neural Networks to …

Growth, And Development Of Care For Leprosy Sufferers Provided By Religious Institutions From The First Century Ad To The Middle Ages, Philippa Juliet Meek

USF Tampa Graduate Theses and Dissertations

This thesis aims to outline the causes, symptoms, and treatments related to leprosy, and how it can be diagnosed in patients and identified in human remains. The thesis also aims to demonstrate the ways in which care for leprosy sufferers developed as the disease became more prevalent and more commonly, and correctly identified. It analyses the social stigmas inflicted upon sufferers, and the medical care and attention provided for them by religious institutions when other groups or organisations shunned those suffering from leprosy. The rationale for this study is to identify trends surrounding the social stigmas attached to leprosy and …

An Exploratory Study Of Test Anxiety As It Relates To The National Clinical Mental Health Counseling Examination, Alyson Carr

USF Tampa Graduate Theses and Dissertations

Test anxiety involves a variety of physiological, cognitive, and emotional components. Those suffering from high test anxiety seem to perform poorly on examinations because test anxiety can contribute to information processing challenges both while studying for tests and during evaluative situations. Current research indicates that when a training program is applied that incorporates cognitive behavioral techniques as well as study skills training, highly test anxious individuals can overcome information processing challenges, increase their academic performance, and earn higher scores on tests.

In this study, a training program (Counseling Exam Test Anxiety Intervention) combining cognitive behavioral techniques and study skills training …

Beauty, Sex, And Death: The Role Of Mortality Salience In Objectification Processes, Kasey Lynn Morris

USF Tampa Graduate Theses and Dissertations

Although much attention has been paid to the consequences of objectification, relatively little research has focused on the question of why women are objectified. From a terror management theory perspective, the association of women with (literal) objects strips them of the qualities that are threatening (on account of mortality concerns). Sexualization, however, underscores women’s animal nature, and this association is problematic in the management of existential anxiety. The current research builds on a distinction between sexual and appearance-focused objectification to identify the existential mechanisms in the motivation to dehumanize, and subsequently harm, women. Consistent with the hypothesis, participants primed with …

An Integrative Model Of Situation Awareness, Andrew Thurston

USF Tampa Graduate Theses and Dissertations

In aviation safety incident reports, lack of situation awareness (SA) is often attributed as the cause of negative safety outcomes, such as accidents. While the predominant model of SA has identified three components of SA, perception, comprehension, and projection, assumptions of their relationships with each other and external criteria are yet tested empirically. Specifically, SA theory suggests comprehension SA fully mediates the relationship between perception and projection SA. Additionally, research on the relationships between individual differences and SA is lacking. The purpose of the current study is to test a comprehensive model of SA which simultaneously examines the described mediation, …

An Exploration Of Adolescent Obesity Determinants, Anastasia King Smith

USF Tampa Graduate Theses and Dissertations

In 2010, approximately two-thirds of adults and one-fifth of the adolescent population in the United States were considered either overweight or obese, resulting in the United States having the highest per capita obesity rate among all OECD countries. A considerable body of literature regarding health behavior, health outcomes, and public policy exists on what the Centers for Disease Control and Prevention considers an obesity epidemic. In response to the growing problem of childhood obesity, the Child Nutrition and WIC Reauthorization Act of 2004 (CNRA), which required that schools participating in the National School Lunch Program and/or School Breakfast Program have …

The Relative Effects Of Processing Instruction And Traditional Output Instruction On The Acquisition Of The Arabic Subjunctive., Youness Mountaki

USF Tampa Graduate Theses and Dissertations

The role of input and output in the acquisition of language has been a source of controversy in Second Language Acquisition (SLA) research. This present study aimed to investigate the relative effects of processing instruction (PI) as a type of input-based instruction and traditional instruction (TI) as a type of output-based instruction. Specifically, this experiment examined whether PI and TI bring about any improvement in comprehension and production of the Arabic subjunctive by beginner-level learners of Arabic. The PI instructional technique was based on the principles of input processing suggested by VanPatten (1993, 2002, 2004). It has three main elements: …

Gait And Tremor Monitoring System For Patients With Parkinson’S Disease Using Wearable Sensors, Shyam Vignesh Perumal

USF Tampa Graduate Theses and Dissertations

Typically, a Parkinson’s disease (PD) patient would display instances of tremor and bradykinesia (slowness of movement) at an early stage of the disease and later develop gait disturbances and postural instability. So, it is important to measure the tremor occurrences in subjects to detect the onset of PD. Also, it is equally essential to monitor the gait impairments that the patient displays, as the order at which the PD symptoms appear in subjects vary from one to another.

The primary goal of this thesis is to develop a monitoring system for PD patients using wearable sensors. To achieve that objective, …

Stoicism In Descartes, Pascal, And Spinoza: Examining Neostoicism’S Influence In The Seventeenth Century, Daniel Collette

USF Tampa Graduate Theses and Dissertations

My dissertation focuses on the moral philosophy of Descartes, Pascal, and Spinoza in the context of the revival of Stoicism within the seventeenth century. There are many misinterpretations about early modern ethical theories due to a lack of proper awareness of Stoicism in the early modern period. My project rectifies this by highlighting understated Stoic themes in these early modern texts that offer new clarity to their morality. Although these three philosophers hold very different metaphysical commitments, each embraces a different aspect of Stoicism, letting it influence but not define his work. By addressing the Stoic themes on the morality …

Predictors Of Adult Community College Students' Intent To Transfer From The Community College With The Associate In Science, Associate In Applied Science, Or Associate In Arts Degree To A Public University In Florida, Anthony Gemart Hill

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to examine the predictors and pre-transfer navigation experiences of community college students enrolled in Associate of Arts (AA), Associate in Science (AS), or Associate in Applied Science (AAS) degrees with transfer intent to Florida’s public universities. The population included adult students aged 26 and above enrolled in Florida state/community college AA, AS, or AAS programs. One hundred and seventy-five students from two community colleges participated in this study with a response rate of 10%. The valid data set included 101 respondents, AA (n =17), AS (n =76), AAS (n =4), other …

Foreign Language College Achievement And The Infusion Of Three Selected Web 2.0 Technologies: A Mixed Method Case Study, Eulises Avellaneda

USF Tampa Graduate Theses and Dissertations

Web 2.0 technologies such as blogs, Google Docs, and YouTube have become ubiquitous in today’s world of second and foreign language learning and have been the object of study (Wang & Vásquez, 2012), yet there is still a need to examine quantitatively and qualitatively how these tools impact the proficiency achievement levels of learners who use them. The purpose of this study was to explore the impact that blogs, Google Docs, and YouTube had on the achievement of college learners of Spanish as a foreign language. A mixed methods design was adopted.

The quantitative data were collected from students (N=75) …

When Maps Ignore The Territory: An Examination Of Gendered Language In Cancer Patient Literature, Joanna Bartell

USF Tampa Graduate Theses and Dissertations

Cancer patients report having a high need for cancer information. Several studies show that the majority of patients surveyed report preferring information from the American Cancer Society (ACS). Ranging up to 129 pages, the ACS’ Detailed Guides (DG) are widely distributed throughout the United States, and offer patients an authoritative guide to help patients navigate the difficult terrain of the cancer journey. This dissertation examines the ACS’ cervical, endometrial, ovarian, penile, prostate, testicular, and vaginal cancer guides. Through a rhetorical analysis of the 7 guides, it was shown that the ACS DGs in question foster gendered narratives that strictly limit …

Genetic Moderators Of Cognitive Decline In The Health And Retirement Study, Shannon K. Runge

USF Tampa Graduate Theses and Dissertations

The current dissertation used a gene x environment (G x E) approach to examine the independent and interactive effects of specific genetic variants and participation in physical and cognitive/social activities (PA and CSA) on cognitive performance in 4,764 participants of the Health and Retirement Study. Using three-wave data, three sets of multi-level growth models were conducted to examine baseline, longitudinal, and interactive effects of genotype (i.e., ApoE, COMT, and BDNF) and CSA/PA on performance across five cognitive measures: immediate, delayed and total word recall, and serial 7s and backwards counting.

At baseline, the ApoE ε4 allele predicted …

The Statue That Houses The Temple: A Phenomenological Investigation Of Western Embodiment Towards The Making Of Heidegger's Missing Connection With The Greeks, Michael Arvanitopoulos

USF Tampa Graduate Theses and Dissertations

Much of the criticism Heidegger has drawn from realism, from postmodernism and even existentialism, as well from the anti-Nazi protests on his philosophy, could be diluted if a defaulted connection was made between Heidegger's metaphysics and the Greeks. Being and Time drafted the blueprint of the origin of predication and world-disclosure from the primordial intuition of the limitations of action in the face of human finitude. This existential reprioritization forced a radical reversal of primacy from nature to culture, having assumed the absolute objectivity of some original world determinacy, the phenomenological structure of which, nevertheless, was never produced in Heidegger’s …

From Misdiagnosis To Prognosis: Autoethnographic Layered Accounts Of Life With Mastocytosis, Gianina Shamarr Hayes

USF Tampa Graduate Theses and Dissertations

This study was an autoethnography authored in the form of layered accounts. It was based on my journey toward a correct diagnosis with the rare, orphan disease known as mastocytosis. The purpose of the study was to utilize my experiences to investigate mastocytosis from the perspective of an individual diagnosed with the disease. Furthermore, I investigated what ways and how much adult education philosophies and principles (e.g., humanistic, behaviorist, and adults’ involvement in learning) may have been salient in my being correctly diagnosed to examine not only the disparities, but also the similarities in the way each physician I encountered …

“It’S Not Pixie Dust”: An Exploratory Qualitative Case Study Of A School-Based Multimodal Tablet Initiative, Erin Elizabeth Margarella

USF Tampa Graduate Theses and Dissertations

This dissertation presents findings from a qualitative case study of three English teachers representing varying levels of comfort with technology and years of teaching experience at St. Patrick Catholic High School. This research was motivated by two questions: (1) What are three literacy educators’ perceptions of a multimodal tablet initiative at a Catholic High School? (2) How is information regarding the use of iPad technology for literacy disseminated to three High School English teachers within a Catholic School system? Data was collected over a twelve-week period during the first academic year of implementation of a school-based multimodal tablet (iPad) initiative. …

Investigation Of Respiratory Syncytial Virus Structural Determinants And Exploitation Of The Host Ubiquitin System, Jillian Nicole Whelan

USF Tampa Graduate Theses and Dissertations

Respiratory syncytial virus (RSV) is a globally circulating, non-segmented, negative sense (NNS) RNA virus that causes severe lower respiratory infections. This study explored several avenues to ultimately expand upon our understanding of RSV pathogenesis at the protein level. Evaluation of RSV intrinsic protein disorder increased the relatively limited description of the RSV structure-function relationship. Global proteomics analysis provided direction for further hypothesis-driven investigation of host pathways altered by RSV infection, specifically the interaction between the RSV NS2 protein and the host ubiquitin system. NS2 primarily acts to antagonize the innate immune system by targeting STAT2 for proteasomal degradation. The goal …

Divine Temporality: Bonhoeffer's Theological Appropriation Of Heidegger's Existential Analytic Of Dasein, Nicholas Byle

USF Tampa Graduate Theses and Dissertations

This dissertation’s guiding question is: What was the impact of Martin Heidegger’s early philosophy on Dietrich Bonhoeffer’s theology? I argue that Heidegger’s analysis of Dasein, his technical term for human existence, provides Bonhoeffer with important conceptual tools for developing his Christology, from which the rest of his theology follows.

Part of recognizing Heidegger’s importance to Bonhoeffer involves understanding the latter’s critiques of previous notable philosophers such as Kant, Hegel, Husserl, and Scheler. As Bonhoeffer evaluates these philosophers, they lead to theologically unacceptable positions. Heidegger, in contrast, has come to a theologically profitable understanding of human existence and epistemology. Though there …

Cultivating Philanthropy In Community Colleges: A Dual-Model Approach, Rachel Faith Pleasant

USF Tampa Graduate Theses and Dissertations

This study tests a model that combines relationship management theory and the theory of reasoned action. Through the collection of quantitative and qualitative data, this study provides deeper understanding of the relationship between community college students and the institution, and identifies aspects of the relationship that most influence behavioral intention to give to the institution. Using this information, public relations practitioners will be able to strategically improve areas of deficiency in the community college-student relationship, thereby increasing the likelihood that today’s students will become tomorrow’s philanthropic alumni.

Microfluidically Reconfigurable Frequency-Agile Rf Filters With Wide Frequency Tuning Range And High Power Handling Capability, Timothy Joseph Palomo

USF Tampa Graduate Theses and Dissertations

Radio Frequency (RF) filters are among the key components of today’s multifunctional devices and test equipment. However, the multifuctionality need significantly drives the required filter number and causes large areas to be allocated for filters. To alleviate this issue, over the recent years, reconfigurable filters have been proposed as an attractive alternative. Nevertheless, existing reconfigurable filter technologies demonstrate degraded performances in terms of loss, frequency tunability bandwidth, and power handling capability. This work investigates, for the first time, microfluidic based reconfiguration techniques for implementation of RF bandpass filters. Specifically, microfluidics is shown to provide mechanisms for achieving compact RF bandpass …