Digital Commons Network^™

Evaluating The Effects Of Different Frequencies On Retention, Bethany Owings Greene

USF Tampa Graduate Theses and Dissertations

Traditional teaching methods use accuracy-only criterion when teaching students a specific skill, but more and more students are being left behind in classrooms because they are not mastering the skill. Using fluency, a combination of speed and accuracy, as a mastery criterion has shown to improve both retention and mastery. Previous research suggested that frequency scores closer to the predicted frequency aim produced greater retention. It is unclear at what frequency aim a decay in retention begins to occur. The purpose of the present study was to examine the differential effects of retention on preschool participants’ reading first grade Dolch …

Digital Integration, Jacob C. Boccio

USF Tampa Graduate Theses and Dissertations

Artificial intelligence is an emerging technology; something far beyond smartphones, cloud integration, or surgical microchip implantation. Utilizing the work of Ray Kurzweil, Nick Bostrom, and Steven Shaviro, this thesis investigates technology and artificial intelligence through the lens of the cinema. It does this by mapping contemporary concepts and the imagined worlds in film as an intersection of reality and fiction that examines issues of individual identity and alienation. I look at a non-linear timeline of films involving machine advancement, machine intelligence, and stages of post-human development; Elysium (2013) and Surrogates (2009) are about technology as an extension of the self, …

Ohm … Pardon The Interruption! An Exploration Of Mindfulness As A Buffer Against The Effects Of Intrusions, Keaton Allen Fletcher

USF Tampa Graduate Theses and Dissertations

Previous research has provided a helpful, albeit narrow, understanding of task interruptions as related to outcomes such as wellness and performance (e.g., Eyrolle & Cellier, 2000). Building on this foundation by viewing interruptions through the broader theoretical context of the theory of mental workload, this study sought to explain the cognitive processes underlying the negative performance effects often associated with interruptions and to apply an intervention aimed at mitigating these effects. Specifically, mindfulness has emerged as a promising method for reducing the cognitive burden of interruptions. This study examined the effects of intrusions (a type of interruption) on psychological strain …

Blue-Collar Scholars: Bridging Academic And Working-Class Worlds, Nathan Lee Hodges

USF Tampa Graduate Theses and Dissertations

This dissertation explores one white working-class family’s hopes, fears, illusions, and tensions related to social mobility. I tell stories from my experiences as a first-generation college student, including: ethnographic fieldwork; interviews with my family, community members, and former teachers; and narratives from other working-class academics to provide an in-depth, evocative, and relational look at mobility. I explore the roots of vulnerability in my family and how I was socialized into understanding belonging and worthiness in particular ways, and how this socialization influences my feelings of belonging and worthiness in the academy. The goal of this research is bridging – past …

Decision Support Systems For Water Management: Investigating Stakeholder Perceptions Of System Use, Gabriella Balsam

USF Tampa Graduate Theses and Dissertations

Water resources are becoming increasingly important to protect, but doing so has proven challenging due to the complex nature of resource management. Many researchers have been trying to develop “usable science” to aid in this endeavor, and one method of this is the development of decision support systems. This has led to the employment of this method as a potential tool for decision makers, scientists, and the interested public to use; yet little literature is available on the success of their implementation. This study attempted to fill the gaps by gathering data through surveys and interviews from stakeholders who are …

An Evaluation Of An Assessment Of Check-In/Check-Out With Children Who Are Homeless In An After School Care Program, Ana Paula Camacho

USF Tampa Graduate Theses and Dissertations

Schoolwide Positive Behavior Interventions and Support (SWPBIS) is an approach designed to improve the correct implementation, consistent use, and maintenance of evidence-based practices related to behavior, classroom management and school discipline systems. Check-in/Check-out (CICO) is often recognized as a successful intervention in SWPBIS. However, most of the research on the use of CICO has focused on the school setting. This study provided an extension to the literature by examining the effects of the CICO program with homeless children attending an afterschool program. A non-concurrent multiple baseline across participants design was used to evaluate the CICO program effects. Students were exposed …

Sialylation And Cardiomyocyte Complex N -Glycosylation Protect Against Dilated Cardiomyopathy And Heart Failure, Wei Deng

USF Tampa Graduate Theses and Dissertations

Dilated cardiomyopathy (DCM) is the third most common cause of heart failure, often associated with arrhythmias and sudden cardiac death if not controlled. Metabolic and/or environmental factors, such as alcohol abuse, obesity, diabetes and Chagas disease, alter glycoprotein glycosylation, can lead to DCM. Inherited genetic disease, such as the human congenital disorders of glycosylation (CDG), causes multi-system manifestations including DCM. Non-congenital changes in glycosylation are also occurred in humans with and in animal models of DCM and heart failure. However, mechanisms responsible for glyco-dependent DCM are not understood. Here we sought to investigate the impact of sialylation and N-glycosylation …

Secure Communication Scheme In Smart Home Environment, Hari Krishna Jonnalagadda

USF Tampa Graduate Theses and Dissertations

Internet of Things, has started to mark its existence from past few years. Right from its inception with a coke machine at Carnegie Mellon University, it has come a long way, connecting billions of devices to internet. This journey is well supported by the advancements in networking, hardware miniaturization and sensing capabilities. Diverse nature of applications of Internet of Things, has cut the communication barriers between the varieties of fields ranging from manufacturing industry to health-care industry. Smart Home is one such application of Internet of Things. Connectivity of home appliances, to achieve automation in living, defines Smart Home. Out …

Rule-Based Risk Monitoring Systems For Complex Datasets, Mona Haghighi

USF Tampa Graduate Theses and Dissertations

In this dissertation we present rule-based machine learning methods for solving problems with high-dimensional or complex datasets. We are applying decision tree methods on blood-based biomarkers and neuropsychological tests to predict Alzheimer’s disease in its early stages. We are also using tree-based methods to identify disparity in dementia related biomarkers among three female ethnic groups. In another part of this research, we tried to use rule-based methods to identify homogeneous subgroups of subjects who share the same risk patterns out of a heterogeneous population. Finally, we applied a network-based method to reduce the dimensionality of a clinical dataset, while capturing …

A Feminist Contestation Of Ableist Assumptions: Implications For Biomedical Ethics, Disability Theory, And Phenomenology, Christine Marie Wieseler

USF Tampa Graduate Theses and Dissertations

This dissertation contributes to the development of philosophy of disability by drawing on disability studies, feminist philosophy, phenomenology, and philosophy of biology in order to contest epistemic and ontological assumptions about disability within biomedical ethics as well as within philosophical work on the body, demonstrating how philosophical inquiry is radically transformed when experiences of disability are taken seriously.

In the first two chapters, I focus on epistemological and ontological concerns surrounding disability within biomedical ethics. Although disabled people and their advocates have been quite vocal regarding their views on disability and in critiquing bioethicists’ approaches to issues that affect them, …

Tunable Nano-Delivery System For Cancer Treatment: A New Approach For Targeted Localized Drug Delivery, Rana Falahat

USF Tampa Graduate Theses and Dissertations

Localized drug delivery systems have been widely studied as potential replacements for conventional chemotherapy with the capability of providing sustained and controlled drug release in specific targeted sites. They offer numerous benefits over conventional chemotherapy such as enhancing the stability of embedded drugs and preserving their anticancer activity, providing sustained and controlled drug release in the tumor site, reducing toxicity and diminishing subsequent side effects, minimizing the drug loss, averting the need for frequent administrations, and minimizing the cost of therapy.

The aim of this study is to develop a localized drug delivery system with niosomes embedded in a chitosan …

Video Data Collection For Continuous Identity Assurance, Janani Venkatesan

USF Tampa Graduate Theses and Dissertations

Frequently monitoring the identity of a person connected to a secure system is an important component in a cyber-security system. Identity Assurance (IA) mechanisms which continuously confirm and verify users’ identity after the initial authentication process ensure integrity and security. Such systems prevent unauthorized access and eliminate the need of an authorized user to present credentials repeatedly for verification. Very few cyber-security systems deploy such IA modules. These IA modules are typically based on computer vision and machine learning algorithms. These algorithms work effectively when trained with representative datasets. This thesis describes our effort at collecting a small dataset of …

The Development Of A Prosthetic Training Software For Upper Limb Amputees, Tyler Kayne Sullins

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to develop an intuitive software that aids in the field of prosthetic training and rehabilitation by creating an individualized visualization of joint angles. This software is titled “the prosthetic training software (PTS) for individualized joint angle representation”, and it enables the individualized portrayal of predicted or pre-recorded joint angles. The PTS is an intuitive program for clinicians and prosthesis users that produces an animation of a virtual avatar reflecting the user’s segment lengths and amputation for rehabilitation and training purposes.

The PTS consists of a graphical user interface (GUI) and a 3D visualization of …

Intrinsic Disorder Where You Least Expect It: The Incidence And Functional Relevance Of Intrinsic Disorder In Enzymes And The Protein Data Bank, Shelly Deforte

USF Tampa Graduate Theses and Dissertations

Intrinsically disordered proteins (IDPs) and intrinsically disordered protein regions (IDPRs) exist as interconverting conformational ensembles, without a single fixed three-dimensional structure in vivo. The focus in the literature up to this point has been primarily on IDPs that are mostly or entirely disordered. Therefore, we have an incomplete understanding of the incidence and functional relevance of IDPRs in proteins that have regions of both order and disorder. This work explores these populations, by examining IDPRs in the Protein Data Bank (PDB) and in enzymes. By applying disorder prediction methods combined with an analysis of missing regions in crystal structure data, …

Blind And Visually Impaired Users Adaptation To Web Environments: A Qualitative Study, Raneem Saqr

USF Tampa Graduate Theses and Dissertations

Although much research exists on human behavior in online environments, research on users with disabilities is still rare. To draw more attention to this population, this dissertation explored browsing patterns and adaptive behaviors of people with visual disability across different online environments common in daily activities: social network, e-commerce, online information, and search engines’ websites. The main objective of this study is to propose a conceptual framework of how blind and visually impaired users browse and adapt to different web environments. We achieve this objective using a qualitative approach through three studies. In the first study, the researchers collect data …

Spatially Directional Resorcin[4]Arene Cavitand Glycoconjugates For Organic Catalysis In Aqueous Media, Ali Husain Husain

USF Tampa Graduate Theses and Dissertations

Resorcin[4]arenes and their rigid structures “cavitands” offer a unique molecular structure scaffolds suitable for attaching and orienting multi-ligands on their upper rims. Their remarkable structure properties, the relative ease of chemical modification on their either rims or through the multiple phenolic hydroxyl (-OH) groups, manipulating their cavity size and the role of spatial directionality provided by their cores, led synthetic chemist to explore their utilities in the synthesis of valuable resorcin[4]arene/cavitand assemblies with wide range of applications in many research areas such as supramolecular chemistry, host-guest chemistry, glycoconjugates, polymer chemistry, host-guest chemistry, micro-reactors in chemical catalysis and others. In particular, …

The Effects Of Visual Arts On Expressive Language In Participants With Dementia, Shannon Valentine Daly

USF Tampa Graduate Theses and Dissertations

Visual aids such as memory books have been shown to help increase recall of information and facilitate improved communication in people with dementia (Bourgeois, 2014). Because of the effectiveness of visual aids for people with dementia, this study aimed to determine if the type of visual stimulus would produce differences in the quality of language expressed. It was hypothesized that a more realistic picture in full color would elicit more descriptive language than a black and white line drawing. Verbal descriptions of Norman Rockwell’s realistic painting, Coming and Going and descriptions of a black and white line drawing of the …

Assessing Excessive Noise Exposure Of Music-Oriented Nightclub Employees, Aiyanna Fitzgerald

USF Tampa Graduate Theses and Dissertations

Much research has gone into noise-induced hearing loss (NIHL) and the effects of high intensity noise levels on the hearing mechanism of individuals. A study by the National Institutes of Health has established that high intensity sounds can cause hearing damage of either a temporary, or worse, a permanent nature; regardless of the age of the person. While sound levels below 75 decibels are considered comparatively harmless and have been found not to cause any kind of permanent hearing loss; sound levels greater than 85 decibels and regular exposure of approximately 8 hours per day, on an average, has been …

A Cross-Methodological Investigation Of Emotional Reactivity In Major Depression, Vanessa Panaite

USF Tampa Graduate Theses and Dissertations

Major depressive disorder (MDD) is primarily characterized by prevalent sadness and anhedonia. Laboratory studies find that depression is characterized by reduced reactivity across emotional contexts, while a few studies using naturalistic designs find that depressed people show normative reactivity to negative life events and mood brightening in response to positive events. The current study was an investigation of emotional reactivity in depression through the use of experimental and naturalistic designs. This allowed for an investigation of sources of lab-life discrepancies in emotional functioning in depression, including negative affect (NA) regulation. We examined experiential reactivity across contexts and types of stimuli …

Statistical Analysis Of A Risk Factor In Finance And Environmental Models For Belize, Sherlene Enriquez-Savery

USF Tampa Graduate Theses and Dissertations

The objectives of the study are to review and evaluate four basic risk models that are commonly used in investment science; statistically investigate the risk factor in Capital Asset Pricing Model (CAPM) that is used to reflect the safety of an investment decision in stocks; explore the statistical distribution of monthly precipitation in Belize and to forecast tourist arrivals using statistical time series modelling techniques.

The risk models are the Capital Asset Pricing Model (Sharpe-Linter Version), Capital Asset Pricing Model (Conditional Version), Arbitrage Pricing Theory, and Fama–French three-factor model adopted in empirical investigations of asset pricing. The underlying assumptions of …

Assessing Occupational Noise Exposure Of Service Members In Aerospace Ground Equipment (Age) Maintenance, Brandon Dewayne Lavender

USF Tampa Graduate Theses and Dissertations

Noise exposure is one of the most common hazards in the work force. There are multiple occupations that experience large amounts of noise exposure to its employees on a regular basis. Flight ground crews and flight maintenance personnel are among the nosiest jobs that exist. Despite the mandatory hearing protection requirements for a job of this caliber, there still remains a chance of an over exposure to noise. Most of the exposure comes from the different types of loud repair equipment and tools, but the greatest exposure comes from a jet engine that can reach 140 decibels. Flight maintenance personnel …

Inquiry Of Lipid Membranes Interacting With Functional Peptides And Polyphenol Drug Molecules, Chian Sing Ho

USF Tampa Graduate Theses and Dissertations

Cellular membranes are important targets for many membrane-active peptides and drug compounds. Here we are interested in deciphering how lipid membranes are perturbed by several membrane-active molecules, including the transmembrane domain of the influenza M2 protein (M2TM), aggregates formed by a synthetic polyglutamine peptide, and three polyphenol compounds (i.e., tamoxifen, genistein, and verapamil). We employ phase-separated ternary lipid model membranes in the form of giant unilamellar vesicles (GUVs) to simulate raft-like structures that have been proposed to govern many important processes in plasma membranes (e.g., intracellular singling and trafficking). Specifically, we use fluorescent microscopy to interrogate how those membrane additives …

An Analysis Of The Formal And Informal Professional Learning Practices Of Middle And High School Mathematics Teachers, Kelly Elizabeth Mccarthy

USF Tampa Graduate Theses and Dissertations

Although there has been a substantial amount of research on the topic of teacher professional development, few studies adequately captured the types and frequency of formal and informal professional learning teachers undertake to improve as educators. The purpose of this study was to examine the types of activities middle and high school mathematics teachers engaged in to improve their abilities as educators, analyzed by the participants’ school setting, years of teaching experience, level of education, degree major, certificate type, and their school’s Title I status.

Teachers from two large school districts in Florida participated. The Teachers’ Opportunity to Learn (TOTL) …

Use Of A Game-Based App As A Learning Tool For Students With Mathematics Learning Disabilities To Increase Fraction Knowledge/Skill, Orhan Simsek

USF Tampa Graduate Theses and Dissertations

The aim of this study was to investigate the effectiveness of a game-based app (Motion Math: Fraction) to help students with Mathematics Learning Disabilities (MLD) to gain fraction skills including comparison, estimation, and word problem solving in an after school program. The researcher used multiple baseline design by extending with follow-up phase to determine whether students retained the knowledge they learned while engaging with the app. Even though six students participated to the study, the researcher withdrew two of them and analyzed data came from four students. The result o the study showed that all of the students …

Evaluating Prevent-Teach-Reinforce (Ptr) In A High School Setting, Kaitlin Sullivan Sullivan

USF Tampa Graduate Theses and Dissertations

Current research shows that school’s behavior intervention plans are lacking in key components, indicating a need for a standardized model of assessment that sustains teacher adherence, acceptance, and feasibility. Prevent-Teach-Reinforce (PTR) is a model that combines the principles of applied behavior analysis and positive behavior support to provide a standardized approach to conducting a functional assessment and creating a behavior plan. Studies have indicated that PTR is effective in improving student behavior and academic engagement. The current study evaluated the use of PTR for three high school students classified as emotional behavioral disorder (EBD). Results indicated that teacher-implemented functional assessment …

Longitudinal Study Of Adjustable Workstations, Megan Elizabeth Sandy

USF Tampa Graduate Theses and Dissertations

Workplace interventions to reduce discomfort and sedentary time have been studied in a variety of settings. Adjustable workstations are one type of ergonomic intervention that is used to potentially reduce occupational sitting time, negative health impacts, and to increase productivity. This investigation compared two types of ergonomic interventions, as well as contrasting behavioral interventions among workers with and without adjustable workstations. Seventy-two sedentary office workers were selected to participate in a longitudinal study to evaluate interventions for a reduction in occupational sitting time, to understand the effect on productivity and to evaluate musculoskeletal pain and behaviors. Workers were randomly placed …

The Effects Of Racial Bias On Perceptions Of Intimate Partner Violence Scenarios, Batya Yisraela Rubenstein

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to explore how racial bias affects perceptions of intimate partner violence (IPV). Public perceptions of IPV have been studied under numerous contexts to ascertain how characteristics of victim and the offender can affect these attitudes. A portion of this body of research has been dedicated to understanding the role of race in perceptions of IPV and a large portion of the findings have been mixed due to the interaction of biases and attitudes about race and IPV. Very few studies have looked at multiple forms of IPV in comparison with one another while also …

Development And Validation Of A Remote Sensing Model To Identify Anthropogenic Boreholes That Provide Dry Season, Refuge Habitat For Anopheles Vector Mosquitoes In Sub-Saharan Africa, James Pkemoi Kukat

USF Tampa Graduate Theses and Dissertations

A lack of surveillance systems is an impediment to public health intervention for perennial vector-borne disease transmission in northern tropical savanna region of Kenya. The population in this area are mostly poor nomadic pastoralists with little acquired functional immunity to Plasmodium falciparum, due to infrequent challenges with the parasite. A common characteristic in tropical savanna climatic zone is the availability of riverbeds that have anthropogenic boreholes that provide malaria vector mosquitoes, such as Anopheles gambiae s.l and Anopheles funestus, with aquatic refuge habitats for proliferation and endemic transmission to proximity human households during the dry-season. Unfortunately, currently there …

The Impact Of Latency Jitter On The Interpretation Of P300 In The Assessment Of Cognitive Function, Xiaoqian Yu

USF Tampa Graduate Theses and Dissertations

When stimuli processing time varies in an oddball paradigm, the latency of the P300 will vary across trials. In an oddball task requiring difficult response selections, as the variation of stimuli processing time increases, so does the variation of the P300 latency, causing latency jitters in the measurement. Averaging the P300 across different trials without adjusting this latency jitter will lead to diminished P300 amplitude, resulting in inaccurate conclusions from the data. Verleger et al. (2014) reported a diminished P300 amplitude in a difficult oddball task that required subjects to make response selections among stimuli that are difficult to distinguish, …

Subtext Of Decisions: Literacy Practices In The Context Of Coding, Julia Hagge

USF Tampa Graduate Theses and Dissertations

In this dissertation I present findings from a qualitative case study of five early adolescents engaged in an online programming community. As a researcher, I was interested in how early adolescents designed digital media as they learned how to code within an online programming community known as Scratch. My research was guided by two questions: (1) What are the literacy practices and processes embedded in the design and collaboration of products created within an online programming community? (2) In what ways do participants make decisions in the design of their projects created in Scratch? The data collected for …