Digital Commons Network^™

A Study On The Adaptability Of Immune System Principles To Wireless Sensor Network And Iot Security, Vishwa Alaparthy

USF Tampa Graduate Theses and Dissertations

Network security has always been an area of priority and extensive research. Recent years have seen a considerable growth in experimentation with biologically inspired techniques. This is a consequence of our increased understanding of living systems and the application of that understanding to machines and software. The mounting complexity of telecommunications networks and the need for increasing levels of security have been the driving factor. The human body can act as a great role model for its unique abilities in protecting itself from external, foreign entities. Many abnormalities in the human body are similar to that of the attacks in …

Exploring The ‘Spaces Between’: Teachers’ Perceptions Of Teacher Leadership Within Professional Networks, Cynthia B. Bauman

USF Tampa Graduate Theses and Dissertations

The enactment of teacher leadership can be challenged by both policy initiatives and school contexts (Anderson & Cohen, 2015; Hargreaves & Fullan, 2012). However, teachers can have a positive influence on each other and their broader school community by building capacity for leadership, innovation, and student achievement through the relationships, or networks, they develop and maintain (Baker-Doyle, 2015; Hovardas, 2016; Hunzicker, 2012; Moolenaar, Sleegers, & Daly, 2012). This single exploratory case study takes place in a Title I elementary school and uses a combination of Social Network Analysis and content analysis to uncover patterns in teacher professional networks, the context …

Moffitt Cancer Center: Leadership, Culture And Transformation, W. James Wilson

USF Tampa Graduate Theses and Dissertations

Purpose – The purpose of this project was to extrapolate knowledge of successful leadership practices, determine what led to and nurtured what became an integrated organizational culture and identify any decisions and/or transformational events that re-defined Moffitt Cancer Center’s (MCC) course or helped propel it to levels far beyond what was originally imagined. The aims of this study were discovery of the foundational factors and events that significantly impacted the creation, growth and evolution of the center, making MCC an institution of transformational change that had achieved state and national prominence.

Design – This was an exploratory study guided by …

Flowgraph Models For Clustered Multistate Time To Event Data, Kristin Hall

USF Tampa Graduate Theses and Dissertations

Healthcare systems have multistate processes. Such processes may be modeled using flowgraphs, which are directed graphs. Flowgraph models support a variety of transition time distributions, easily handle reversibility between states and allow alternate paths to the event or state of interest to be taken. However, estimation of flowgraph and first passage time distribution parameters can lead to incorrect inferences when interdependent data are treated as independent.

In this dissertation, we expand the flowgraph model to accommodate nested and correlated data structures. We develop a framework to incorporate random effects into transition probability and transition time components of a flowgraph model. …

Behavioral Thermoregulation And Thermal Mismatches Influence Disease Dynamics In Amphibians, Erin Louise Sauer

USF Tampa Graduate Theses and Dissertations

Amphibians are currently the most threatened vertebra taxa on the planet. Hundreds of species are thought to have gone extinct while thousands more have been listed as threatened or endangered over the past few decades. Habitat loss, invasive species, climate change, and disease are all thought to have partially contributed to these declines. Two pathogens in particular, infectious viruses in the genus Ranavirus (simply referred to as ranavirus) and the fungus Batrachochytrium dendrobatidis (Bd), have been associated with global mass mortality events of amphibians. Virulent pathogens such as these tend to impose strong selective pressures on their hosts driving the …

Optical Remote Sensing Of Oil Spills In The Gulf Of Mexico, Shaojie Sun

USF Tampa Graduate Theses and Dissertations

Assessment of oil spills in the ocean using passive remote sensing (i.e., reflected sun light) faces two challenges: detect oil presence/absence and quantify oil volume. While the optical properties of oil allow it to be differentiated from the surrounding marine environment, sun glint can facilitate oil presence/absence detection because the oil-water spatial contrast is enhanced due to wave dampening. However, sun glint also modulates the magnitude and shape of the spectral reflectance of surface oil. In addition to this difficulty, the most critical challenge is how to quantify oil volume (or thickness) through remote sensing. To date, such quantifications have …

Ay 2018/2019 Sec Meeting Minutes, 2018-11-14, Faculty Senate

Faculty Senate Archives

No abstract provided.

Early Identification Of Students In Accelerated Curricula With Signs Of Academic And Emotional Risk: Working With Teachers To Identify At-Risk Students, Elizabeth D. Storey

USF Tampa Graduate Theses and Dissertations

As part of a comprehensive, multi-tiered system of support for students’ emotional, academic, and behavioral success, effective universal screenings are essential to identify students who may benefit from early intervention and targeted prevention services (Strein, Kuhn-McKearin, & Finney, 2014). Although many screening procedures and methods have been developed and evaluated for general education populations, more research is needed on screening procedures designed for one traditionally underserved population in school-based mental health services—students in accelerated curricula (namely, students in Advanced Placement classes or in the International Baccalaureate program; AP/IB). When teachers are involved in universal screening procedures, regardless of student population …

Wastewater In Context: Systems-Based Approaches To Improving Wastewater Infrastructure Transitions, Christine Prouty

USF Tampa Graduate Theses and Dissertations

Coastal communities and ecosystems around the world are some of those most vulnerable to the impacts of climate change. In particular, the wastewater treatment systems in these areas are on the forefront of the effects of increasing frequency, duration, and intensity associated with extreme weather events. As such, decision making about adopting new wastewater technologies or transitioning to an improved treatment portfolio is an important area of research for coastal communities because they are critically linked to the health of the nearby aquatic ecosystems (i.e. tourism, fishing, cultural heritage, climate protection).

The decision making process about technology adoption and transitions …

Crow's Nest, November 13, 2018, Crow's Nest Staff

Crow's Nest

The November 13, 2018, issue of the Crow's Nest.

Aqueous Humor Dynamics And The Constant-Pressure Perfusion Model Of Experimental Glaucoma In Brown-Norway Rats, Kayla R. Ficarrotta

USF Tampa Graduate Theses and Dissertations

Glaucoma affects tens of millions of people and is the leading cause of irreversible blindness worldwide. Virtually all current glaucoma therapies target elevated intraocular pressure (IOP); however, the contribution of intracranial pressure (ICP) to glaucoma has recently garnered interest. Strain at the optic nerve head is now known to depend on the translaminar pressure difference (TLPD), which is the difference between IOP and ICP, rather than IOP alone. A better understanding of how IOP and ICP relate to glaucoma development and progression is essential for developing improved therapies and diagnostic tests. Glaucoma is commonly modeled in rats, yet aqueous humor …

Composition And Method To Reduce Sediment And Bacterial Contamination From Water, Norma A. Alcantar, Babu Joseph, Kevin A. Young, Audrey Lynn Buttice

USF Patents

In recent years, a great deal of attention has been drawn to the issue of water contamination, particularly in developing countries, where an inexpensive, effective method of reducing waterborne pathogens and contaminants is needed. Experiments performed with mucilage extracted from the Opuntia ficus-indica cactus show that this mucilage is an effective tool for clearing contaminants from water supplies, including the removal of Escherichia coli and Bacillus cereus bacteria, and the reduction of arsenic concentrations with very low mucilage concentrations (5 mg/L and 10 mg/L). Results for Bacillus and E. coli show settling to be complete in approximately five to ten …

Effects Of Interspersing Recall Versus Recognition Questions With Response Cards During Lectures On Students' Academic And Participation Behaviors In A College Classroom, Leslie S. Singer

USF Tampa Graduate Theses and Dissertations

Instructional design and delivery may be one tool available to teachers to increase the academic and social behaviors of all students in the classroom. Effective instruction is an evidence-based teaching strategy that can be used to efficiently educate our youth across all learning environments. One effective instructional strategy includes increasing students’ opportunities to respond to instructor-posed questions during lectures. Students may respond to questions using a response card system as a way to promote active engagement. This study examined the most common form of instructor-posed questions presented during lecture, recall and recognition questions, to determine the differential effects on students’ …

Analysis Of Printed Electronic Adhesion, Electrical, Mechanical, And Thermal Performance For Resilient Hybrid Electronics, Clayton Neff

USF Tampa Graduate Theses and Dissertations

Today’s state of the art additive manufacturing (AM) systems have the ability to fabricate multi-material devices with novel capabilities that were previously constrained by traditional manufacturing. AM machines fuse or deposit material in an additive fashion only where necessary, thus unlocking advantages of mass customization, no part-specific tooling, near arbitrary geometric complexity, and reduced lead times and cost. The combination of conductive ink micro-dispensing AM process with hybrid manufacturing processes including: laser machining, CNC machining, and pick & place enables the fabrication of printed electronics. Printed electronics exploit the integration of AM with hybrid processes and allow embedded and/or conformal …

Investigating The Role Of The Rna Binding Protein Lin28 In The Human Placenta: Implications For Preeclampsia, John Canfield

USF Tampa Graduate Theses and Dissertations

An essential event during early pregnancy is the invasion of trophoblasts into the maternal decidua, which is necessary for proper implantation and establishment of maternal-fetal interface and ultimately allows for proper nutrient exchange and immunological tolerance of the growing fetus. For this invasion to occur, cells originating from the trophectoderm undergo an epithelial to mesenchymal transition to become invasive extravillous trophoblasts and begin invading the uterine decidual tissue. Through the secretion of matrix metalloproteinases and through interactions with many cytokines and cell-adhesion molecules, this well-orchestrated process of trophoblast invasion results in extensive remodeling of the maternal spiral vasculature by the …

Investigation Of Anemarrhena Asphodeloides And Its Constituent Timosaponin-Aiii As Novel, Naturally Derived Adjunctive Therapeutics For The Treatment Of Advanced Pancreatic Cancer, Catherine B. Marelia

USF Tampa Graduate Theses and Dissertations

Pancreatic adenocarcinoma (PDAC) remains one of the most lethal cancer types, with 92% of patients succumbing to the disease within five years. One of the hallmarks of this intractable disease is its nearly universal resistance to chemotherapeutic intervention. The deoxycytidine analog gemcitabine persists as the primary chemotherapy for advanced PDAC patients despite little improvement to its toxicity and tenuous efficacy over the past two decades. Plant-based drug discovery has a longstanding history and has led to some of the most significant drugs of the modern era, including some chemotherapeutic agents like paclitaxel and camptothecin. Our study analyzed the potential inhibitory …

The Role Of Migration-Related Stress In Depression Among Haitian Immigrants In Florida: A Mixed Method Sequential Explanatory Approach, Dany Amanda C. Fanfan

USF Tampa Graduate Theses and Dissertations

Recognizing, appropriately treating depression, and meeting the mental health needs of the growing number of Haitian immigrants in the United States (US), continue to pose a challenge because of differences in culture, beliefs, idiom of distress, expression of depression as well as specific stressors associated with the migration process. Previous studies, while limited, document high levels of depression among Haitian migrants, and postulated that migration-related stress (MRS) may play a significant role. Aspects of the migration process, more specifically stressors endured during settlement in the US may negatively precipitate the development of depression.

This study used a mixed method sequential …

Patient Experiences And Satisfaction With Homeopathic Treatment In Pune, India, Asmita R. Mhaskar

USF Tampa Graduate Theses and Dissertations

Introduction: Global populations are increasingly pursuing Complementary and Alternative Medicines (CAM) as safe, holistic options to attain health and wellness. Homeopathy is one such system of medicine whose demand is growing across the world, with maximum users in India. Yet, patient satisfaction and experiences with Homeopathy have not been addressed comprehensively in India.

Methods: A two-phase, mixed-methods study was designed to assess patient satisfaction and patient experiences with Homeopathic medicines and clinics in Pune, India. Phase I included the design and validation of a survey on Homeopathy specific experiences in English and Marathi for collecting data. Phase II employed a …

The Spectacle Of The Bomb: Rhetorical Analysis Of Risk Of The Nevada Test Site In Technical Communication, Popular Press, And Pop Culture, Tiffany Wilgar

USF Tampa Graduate Theses and Dissertations

This dissertation is a rhetorical analysis of presentations of risk across three different sites of inquiry: technical communication, the popular press, and pop culture. This dissertation focuses on The Nevada Test Site (NTS), a nuclear testing facility near Las Vegas, Nevada, and analyzes presentations of risk in language of the technical report following an NTS accident in December 1970. Project Baneberry, a routine underground nuclear test, became the accident known as "The Baneberry Vent" when it cracked through the earth and vented into the atmosphere, exposing NTS employees and nearby communities to radiation. Presentations of risk in the technical document …

Demonstration Of Monolithic-Silicon Carbide (Sic) Neural Devices, Evans K. Bernardin

USF Tampa Graduate Theses and Dissertations

Brain Machine Interfaces (BMI) provide a communication pathway between the electrical conducting units of the brain (neurons) and external devices. BMI technology may provide improved neurological and physiological functions to patients suffering from disabilities due to damaged nervous systems. Unfortunately, microelectrodes used in Intracortical Neural Interfaces (INI), a subset of the BMI device family, have yet to demonstrate long-term in vivo performance due to material, mechanical and electrical failures. Many state-of-the-art INI devices are constructed using stacks of multiple materials, such as silicon (Si), titanium (Ti), platinum (Pt), parylene C, and polyimide. Not only must each material tolerate the biological …

A Secure Computing Platform For Building Automation Using Microkernel-Based Operating Systems, Xiaolong Wang

USF Tampa Graduate Theses and Dissertations

Building Automation System (BAS) is a complex distributed control system that is widely deployed in commercial, residential, industrial buildings for monitoring and controlling mechanical/electrical equipment. Through increasing industrial and technological advances, the control components of BAS are becoming increasingly interconnected. Along with potential benefits, integration also introduces new attack vectors, which tremendous increases safety and security risks in the control system. Historically, BAS lacks security design and relies on physical isolation and "security through obscurity". These methods are unacceptable with the "smart building" technologies. The industry needs to reevaluate the safety and security of the current building automation system, and …

Structure-Based Design, Synthesis And Applications Of A New Class Of Peptidomimetics: 'Y-Aa Peptides And Their Derivatives, Ma Su

USF Tampa Graduate Theses and Dissertations

Peptidomimetics can mimic hierarchical structures of peptides and proteins. Thus, they are extensively studied for therapeutic applications. To break the limitation of backbones and frameworks and expand the peptidomimetics family, a new class of peptidomimetics - “γ-AApeptides” was developed. Design of γ-AApeptides is based on the chiral peptide nucleic acids (PNAs) backbone.

The World Health Organization estimates that one -third of all deaths in the world are on account of infectious diseases. AMPs are important because of their high activity against broad spectrum microbes, less susceptible to grow resistance and selectivity in binding to bacterial cells over human cells. γ-AApeptides …

Agenda And Reports, Juvenile Welfare Board Regular Board Meeting November 8, 2018, Juvenile Welfare Board Of Pinellas County

Juvenile Welfare Board Agendas, Minutes, and Historical Audits

Agenda and reports for the November 8, 2018, meeting of the Juvenile Welfare Board of Pinellas Country's regular board.

The Weekly Challenger, November 8, 2018, The Weekly Challenger, Et Al

Weekly Challenger Newspaper Collection

The November 8, 2018, issue of The Weekly Challenger.

The Impact Of Prior-Prior Year On Federal Student Aid Eligibility, Valerie A. Mockus

USF Tampa Graduate Theses and Dissertations

Each year, millions of Americans complete the Free Application for Federal Student Aid (FAFSA) in hopes of securing federal, state, and institutional funding to support their educational goals. The FAFSA recently changed the age of tax data used to determine eligibility for aid, including the Federal Pell Grant—eligibility for which is often used as a proxy for students with the highest need. This study includes a comprehensive review of the extant literature on the subject of prior-prior year. It is also the first look into the actual impact of the recent shift from Prior Year (PY) tax information to Prior-Prior …

Heart Rate Variability Analysis As A Means Of Real-Time Hypercapnia Detection, Joseph Dituri

USF Tampa Graduate Theses and Dissertations

The motivation for this research is the high prevalence experienced by divers of carbon dioxide (CO₂) issues and concerns throughout their lives. Additionally, CO₂ is naturally occurring, the product of oxidative metabolism, and is undetectable to human senses. Current CO₂ sensor or detection technology is limited to high-cost machines such as arterial blood gas monitors and end tidal CO₂ monitors, or more modern technology relying upon bright lights which measure blood flow. The light technology is notoriously unreliable and does not produce a very effective heart beat allowing a user to detect minimal changes. Heart …

Negotiating My Rainbow: A Self-Study Exploring The Relationship Between Beliefs About Identity And Classroom Practice, Amanda Colborne

USF Tampa Graduate Theses and Dissertations

Teachers bring parts of themselves, among them, gender, age, and race into the classroom. In addition to the routine stress of teaching, lesbian, gay, bisexual and transgender (LGBT) people have the added stress of managing the expression of their sexual orientation in the classroom. This study explores the ways in which my own identity as a lesbian influenced my beliefs about teaching, my “pre-active” curricular-instructional decision-making, and my “interactive” curricular-instructional decision-making (Jackson, 1966). A self-study methodology is used to explore these relationships. Data sources include journaling, lesson plan artifacts, student work samples, photographs of my classroom, an observation and critical …

The Icarus Floating Membrane Photobioreactor For Microalgae Cultivation In Wastewater: Advancing Technology From Lab To Field Prototype, Melanie Pickett

USF Tampa Graduate Theses and Dissertations

The ICARUS membrane photobioreactor, conceptualized and preliminarily tested at the University of South Florida, provides a viable platform for algae cultivation using wastewater as a growth medium. Progression of the technology is tracked using NASA’s Technology Readiness Level scale, and is herein described. Through the work described in this manuscript, the technology has evolved from TRL 3 to TRL 5. Completing the suggested future work will readily move the technology to TRL 6 and beyond.

The first study investigated the co-location of algal cultivation with wastewater treatment. This coupling provides a steady source of water and nutrients for algal growth. …

Message Received? The Relationship Between Graphic Warning Labels, Message Framing, And Psychological Responses Among Smokers, John B. Correa

USF Tampa Graduate Theses and Dissertations

Introduction: This study was designed to evaluate the effects of graphic components and message content on daily smokers’ responses to cigarette pack warning labels. It was hypothesized that graphic warning labels (GWLs) would produce increases in state psychological reactance, that loss-framed messages would generate increases in risk perception and psychological reactance, and that GWLs and gain-framed messages would interact to generate increases in motivation to quit smoking when compared to the GWL/loss-framed condition. It was also hypothesized that trait reactance, smoking behavior, and baseline motivation to quit smoking would moderate effects of the warning label exposures.

Method: In a within-subjects …

Minutes, College Of Arts & Sciences Department Chairs Meeting, November 7, 2018, Bridget Nickens

Department Chairs Meetings

Minutes from the November 7, 2018, meeting of the department chairs from the University of South Florida St. Petersburg's College of Arts and Sciences.