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Solving The Challenges Of Concept Drift In Data Stream Classification., Hanqing Hu
Solving The Challenges Of Concept Drift In Data Stream Classification., Hanqing Hu
Electronic Theses and Dissertations
The rise of network connected devices and applications leads to a significant increase in the volume of data that are continuously generated overtime time, called data streams. In real world applications, storing the entirety of a data stream for analyzing later is often not practical, due to the data stream’s potentially infinite volume. Data stream mining techniques and frameworks are therefore created to analyze streaming data as they arrive. However, compared to traditional data mining techniques, challenges unique to data stream mining also emerge, due to the high arrival rate of data streams and their dynamic nature. In this dissertation, …
Occupational Health Assessment Of Tomato Farmworkers In East Tennessee, Mercy E. Aula
Occupational Health Assessment Of Tomato Farmworkers In East Tennessee, Mercy E. Aula
Electronic Theses and Dissertations
Farmworkers play an integral role in the production and availability of tomato fruit for consumption. Yet the work activities of farmworkers present risk factors for musculoskeletal disorders. Tasks involving stake pounding, picking, bucket toss, and trellising entail risk factors such as repetitive motions, lifting/carrying of heavy loads, and working in flexed trunk postures. These physically demanding activities are typically associated with musculoskeletal disorders (MSDs). Presently, quantitative assessments of these jobs and health risks to the workers are rare. Access to the workers who are often migrant and seasonal can pose an impediment to such investigations. This research examines three tasks …
Additive Manufacturing Of Aluminum Alloy By Metal Fused Filament Fabrication (Mf3)., Luke J. Malone
Additive Manufacturing Of Aluminum Alloy By Metal Fused Filament Fabrication (Mf3)., Luke J. Malone
Electronic Theses and Dissertations
This research studies metal-fused filament fabrication (MF3) for manufacturing aluminum alloy parts. An aluminum alloy powder-based feedstock with a polymer-binder system was extruded via capillary rheometry to form a filament. The filament was used to print green parts that were involved in a two-step debinding process combining solvent and thermal extraction of the polymer binder, then sintered in a partial vacuum. Resulting grain structure, sintered density, and mechanical properties will be characterized and compared to metal injection molded (MIM) specimens. The main objective is to gain an understanding of the MF3 process characteristics and the ensuing material properties and microstructure …
Computer Aided Diagnosis System For Breast Cancer Using Deep Learning., Asma Baccouche
Computer Aided Diagnosis System For Breast Cancer Using Deep Learning., Asma Baccouche
Electronic Theses and Dissertations
The recent rise of big data technology surrounding the electronic systems and developed toolkits gave birth to new promises for Artificial Intelligence (AI). With the continuous use of data-centric systems and machines in our lives, such as social media, surveys, emails, reports, etc., there is no doubt that data has gained the center of attention by scientists and motivated them to provide more decision-making and operational support systems across multiple domains. With the recent breakthroughs in artificial intelligence, the use of machine learning and deep learning models have achieved remarkable advances in computer vision, ecommerce, cybersecurity, and healthcare. Particularly, numerous …
Role Of Deep Learning Techniques In Non-Invasive Diagnosis Of Human Diseases., Hisham Abouelseoud Elsayem Abdeltawab
Role Of Deep Learning Techniques In Non-Invasive Diagnosis Of Human Diseases., Hisham Abouelseoud Elsayem Abdeltawab
Electronic Theses and Dissertations
Machine learning, a sub-discipline in the domain of artificial intelligence, concentrates on algorithms able to learn and/or adapt their structure (e.g., parameters) based on a set of observed data. The adaptation is performed by optimizing over a cost function. Machine learning obtained a great attention in the biomedical community because it offers a promise for improving sensitivity and/or specificity of detection and diagnosis of diseases. It also can increase objectivity of the decision making, decrease the time and effort on health care professionals during the process of disease detection and diagnosis. The potential impact of machine learning is greater than …
Dimension And Ramsey Results In Partially Ordered Sets., Sida Wan
Dimension And Ramsey Results In Partially Ordered Sets., Sida Wan
Electronic Theses and Dissertations
In this dissertation, there are two major parts. One is the dimension results on different classes of partially ordered sets. We developed new tools and theorems to solve the bounds on interval orders using different number of lengths. We also discussed the dimension of interval orders that have a representation with interval lengths in a certain range. We further discussed the interval dimension and semi dimension for posets. In the second part, we discussed several related results on the Ramsey theory of grids, the results involve the application of Product Ramsey Theorem and Partition Ramsey Theorem
Environmental Noise Exposure And Its Association With Elementary Standardized Testing Scores And Adult Mental Ill-Health In Louisville, Kentucky., Lindsey Adelle Wood
Environmental Noise Exposure And Its Association With Elementary Standardized Testing Scores And Adult Mental Ill-Health In Louisville, Kentucky., Lindsey Adelle Wood
Electronic Theses and Dissertations
Background and Aim: The current body of literature on the associations of environmental noise exposure with varying psychological outcomes is inconclusive, with many conflicting findings. Limitations include exposure measurement error and lack of investigation of effect modification by important factors. This dissertation aims to expand on the current understanding of these relationships by limiting exposure measurement error and by assessing effect modification. Methods: We estimated the distribution of total environmental noise in Louisville, Kentucky for several time-periods using land use regression (LUR) methodologies. Additionally, through multiple regression models, we estimated the association of environmental noise during relevant time-periods with childhood …
Role Of Machine Learning In Early Diagnosis Of Kidney Diseases., Mohamed Nazih Mohamed Ibrahim Shehata
Role Of Machine Learning In Early Diagnosis Of Kidney Diseases., Mohamed Nazih Mohamed Ibrahim Shehata
Electronic Theses and Dissertations
Machine learning (ML) and deep learning (DL) approaches have been used as indispensable tools in modern artificial intelligence-based computer-aided diagnostic (AIbased CAD) systems that can provide non-invasive, early, and accurate diagnosis of a given medical condition. These AI-based CAD systems have proven themselves to be reproducible and have the generalization ability to diagnose new unseen cases with several diseases and medical conditions in different organs (e.g., kidneys, prostate, brain, liver, lung, breast, and bladder). In this dissertation, we will focus on the role of such AI-based CAD systems in early diagnosis of two kidney diseases, namely: acute rejection (AR) post …
Cultivating The Human Narrative: On Nietzsche, Science Fiction, And The Aesthetics Of Life., Derek Carpenter
Cultivating The Human Narrative: On Nietzsche, Science Fiction, And The Aesthetics Of Life., Derek Carpenter
Electronic Theses and Dissertations
In this dissertation, I will argue that there is a specific model of morality which can account for the intuition about moral features that we take to be intrinsic to the human type. This model of morality is that of Virtue Ethics, but not a conventional kind of Virtue Ethics. Instead, I will argue that the moral philosophy of Friedrich Nietzsche presents a model of cultivating narrative types that we take to be grounded in the kinds of beings we are, without resorting to any problematic metaphysical systems. This will require that I defend a novel interpretation of Nietzsche’s ethics …
Development And Applications Of A Sensor For Measurement Of Different Modes Of Heat Transfer On Foods In A Residential Oven., Kervins Petit-Bois
Development And Applications Of A Sensor For Measurement Of Different Modes Of Heat Transfer On Foods In A Residential Oven., Kervins Petit-Bois
Electronic Theses and Dissertations
Thermal characterization of an oven is an important part of designing an oven. Understanding how changes in cooking algorithm, oven construction, and oven materials affect cooking performance is critical in ensuring that an oven is properly designed. Often temperature data is used to characterize oven behavior, but this neglects the mode of heat transfer used to achieve these temperatures. Several studies have compared the different modes of heat transfer and cooking performance and have shown that cooking performance in radiation dominated modes are different than in convection dominated modes. The goal of this study is to develop a heat flux …
Effect Of Dorsal Quadrant Or Ventral Quadrant Spinal Cord Injury On Gait Features During Locomotion., Anya Nicole Trell
Effect Of Dorsal Quadrant Or Ventral Quadrant Spinal Cord Injury On Gait Features During Locomotion., Anya Nicole Trell
Electronic Theses and Dissertations
In the Unites States, approximately 1.5 million people currently have a spinal cord injury and suffer permanent sensory and motor loss due to the disruption of the spinal cord. Due to the significant morbidity, it is vital to understand the functional impact of disrupting neural descending pathways that modulate spinal neurons involved in intermuscular coordination critical for gait behaviors. Tasks that are more difficult require additional input from these neural pathways; therefore, fourteen feline subjects were familiarized with level overground locomotion and stair descent gait tasks. After collection of baseline kinematic data, the subjects received either a dorsal or ventral …
Experimental Evaluation Of Heat Leak From Anti-Sweat Components Into Fresh Food And Freezer Compartments Of A Household Refrigerator., Delva Felissaint
Experimental Evaluation Of Heat Leak From Anti-Sweat Components Into Fresh Food And Freezer Compartments Of A Household Refrigerator., Delva Felissaint
Electronic Theses and Dissertations
Condensation beads forming on outside surfaces around a refrigerator is an undesirable byproduct driven by the cold temperature exhibited throughout the unit. To combat this issue, anti-sweat components usually in the form of electrical heaters or tubes carrying hot refrigerant, bring heat to the cold surfaces to ensure their temperatures do not drop below the dew point. Some heat produced by the anti-sweat components may transfer to the interior refrigerated compartment. The purpose of this study is to quantify how much heat from the anti-sweat components are entering the fresh food and freezer compartments and what impact that has on …
Optimal Scheduling Of Connected And Autonomous Vehicles At A Reservation-Based Intersection., Muting Ma
Optimal Scheduling Of Connected And Autonomous Vehicles At A Reservation-Based Intersection., Muting Ma
Electronic Theses and Dissertations
Reservation-based intersection control has been evaluated with better performance over traditional signal controls in terms of intersection safety, efficiency, and emission. Controlling connected and autonomous vehicles (CAVs) at a reservation-based intersection in terms of improving intersection efficiency is performed via two factors: trajectory (speed profile) and arrival time of CAVs at the intersection. In an early stage of the reservation-based intersection control, an intersection controller at the intersection may fail to find a feasible solution for both the trajectory and arrival time for a CAV at a certain planning horizon. Leveraging a deeper understanding of the control problem, reservation-based intersection …
Meeting The Mental Health Needs Of College-Aged Young Adults: Evaluating The Value And Impact Of Digital Mental Health Interventions., Sara Atherton Choate
Meeting The Mental Health Needs Of College-Aged Young Adults: Evaluating The Value And Impact Of Digital Mental Health Interventions., Sara Atherton Choate
Electronic Theses and Dissertations
BACKGROUND: The growing prevalence of common mental health problems poses a serious hindrance to young adults, and the majority of those in need of mental health support do not seek professional psychological services. Digital mental health interventions (DMHIs) that allow for self-management of mental health symptoms could provide a useful adjunctiveto traditional one-on-one counseling or therapy and offer a useful prevention tool for students at risk for experiencing mental health crises. This dissertation explored the efficacy of self-guided DMHIs targeting college students, the factors associated with help-seeking in young adults, and the impact of implementing an evidence-based DMHI at a …
Female Motivation In Engineering, Manufacturing, And Stem-Related Trades, Leaann Nichole Manz, Leaann Nichole Manz-Young, Leaann Nichole Young
Female Motivation In Engineering, Manufacturing, And Stem-Related Trades, Leaann Nichole Manz, Leaann Nichole Manz-Young, Leaann Nichole Young
Electronic Theses and Dissertations
Historically, female representation in engineering and manufacturing trades has been underrepresented compared to their male counterparts. Given this trend, the scope of this paper is to analyze the motivational factors among females who are currently working in Engineering and Manufacturing related trades in the surrounding lower East Appalachian area. Literature research will support an analysis of the following focus: Females in Engineering and Manufacturing Trades. The study focuses on analyzing questionaries from thirty-two females based on the Social Cognitive Career Theory and its three components: “outcome expectations, career interest, and career self-efficacy”. The major findings of this study …
Implementing A Screening Tool For Social Determinants Of Health In A Rural Primary Care Clinic, Kimberly S. Roberts
Implementing A Screening Tool For Social Determinants Of Health In A Rural Primary Care Clinic, Kimberly S. Roberts
Electronic Theses and Dissertations
Abstract The environment and conditions in which people are born, live, learn, work, play, worship, and age are social determinants of health (SDOH). Specifically, SDOH are categorized into five domains: (a) economic stability, (b) education access and quality, (c) health care access and quality, (d) neighborhood and built environment, and (e) social and context communities. Inequities in these domains are associated with health disparities that lead to poorer health and quality of life. The aim of this quality improvement project was to implement the Protocol for Responding to and Assessing Patient Assets, Risks, and Experiences (PRAPARE) to screen patients’ SDOH …
Portraits Of Leadership In Higher Education: Directors Of Centers For Teaching And Learning Leadership Styles And Dei Practices At Four-Year Universities In The U.S., Angela K. Johnson
Portraits Of Leadership In Higher Education: Directors Of Centers For Teaching And Learning Leadership Styles And Dei Practices At Four-Year Universities In The U.S., Angela K. Johnson
Electronic Theses and Dissertations
This study aimed to examine Directors of Centers for Teaching and Learning DEI practices and understanding of leadership style within their 4-year universities in the United States. Information indicates that student enrollment of students identifying as members of historically marginalized groups is increasing and that persistent descriptions of experiences related to educational barriers negatively impact learning experiences. Integrating this information into this narrative life span study and considerations of the components of leadership identity development provided themes regarding the critical practices among higher education institutional leaders. The study presented findings that described the impact of the life span factor on …
For-Profit Business Leaders’ Perceptions Of Technology And Conflict Resolution In The Workplace, Sherry Hamilton Latten
For-Profit Business Leaders’ Perceptions Of Technology And Conflict Resolution In The Workplace, Sherry Hamilton Latten
Electronic Theses and Dissertations
This dissertation explored for-profit business leaders’ experiences with technology and conflict resolution. With the rise of technology in communications in the workplace and the risk of miscommunications leading to negative impacts on organizational and individual performance, understanding leader experiences is vital to organizational success. The purpose of this basic qualitative study was to understand for-profit business leaders’ (1) perceptions of technology and conflict resolution in the virtual workplace and (2) perceptions of their leadership styles and the impact on conflict resolution in the virtual workplace. Prior literature regarding the impact of technology on communications revealed mixed results with some studies …
A Bioaffinity Self-Assembling Gel For Localized Delivery Of Immunotherapeutics, Ngoc Pham
A Bioaffinity Self-Assembling Gel For Localized Delivery Of Immunotherapeutics, Ngoc Pham
Electronic Theses and Dissertations
Renal cell carcinoma (RCC) is a type of cancer in which malignant cells develop in the kidney tubules. Immune checkpoint inhibitors (ICI), including anti-PD-1 antibodies (aPD1), as monotherapies or in combination settings have advanced to the front-line treatment for patients diagnosed with RCC. Systemic infusion of ICI may render subtherapeutic concentrations in the lesions and increase risks of immune-related adverse events. To overcome these limitations, locoregional drug delivery has gained substantial interests as a modality in immuno-oncology. However, conventional intratumoral injections may be ineffective because the high interstitial fluid pressure in tumors resists drug retention and results in rapid local …
Aerodynamics And Turbulent Wake-Flow Characteristics Of Owls During Flapping Flight, Krishnamoorthy Krishnan
Aerodynamics And Turbulent Wake-Flow Characteristics Of Owls During Flapping Flight, Krishnamoorthy Krishnan
Electronic Theses and Dissertations
Owls exhibit unique flight capabilities in the low Reynolds number flow regime which is prone to complex viscous flow phenomena. They possess unique feather features and flexible wing structures which are postulated to help them fly nearly silently and stably at low speeds in a complex flow setting. Understanding the aerodynamics of owls could pave the way to enhance the future designs of small flying vehicles. Though it has been a focus of research over multiple decades, no conclusive agreement has been attained on the aerodynamic mechanisms associated with owl flight. Particularly, the aerodynamics of flapping owl flight is severely …
Enzootic Trends Of Crassostrea Virginica And Perkinsus Marinus In North Inlet Estuary, South Carolina, Nico Martin D'Amico
Enzootic Trends Of Crassostrea Virginica And Perkinsus Marinus In North Inlet Estuary, South Carolina, Nico Martin D'Amico
Electronic Theses and Dissertations
The Eastern oyster (Crassostrea virginica) co-occurs with the protozoan parasite Perkinsus marinus (the causative agent for "Dermo") in US Atlantic and Gulf of Mexico estuaries. Oyster host functions as an ecological engineer and agent for benthic-pelagic coupling are compromised when P. marinus infections are common in populations (prevalence) and high in individuals (intensity). P. marinus infections in oysters from North Inlet estuary, South Carolina were quantified in relation to shell height (60-76 mm, ≥76 mm), sex (functional female, male, indeterminate), water temperature, and salinity. Three fringing reefs on a longitudinal transect from the inlet mouth into the watershed were sampled …
On Your Marks, Handset, Go: An Illustrative Case Study Of A Professional Development Initiative About Mobile Learning, Nichole A. Scarlett
On Your Marks, Handset, Go: An Illustrative Case Study Of A Professional Development Initiative About Mobile Learning, Nichole A. Scarlett
Electronic Theses and Dissertations
Technology is shaping our personal and professional lives every day, yet many educators struggle with its implementation and therefore are not using it to the fullest potential. The purpose of this single-case study was to analyze how a teacher’s participation in a Professional Development (PD) initiative influenced the implementation of mobile technology in teaching and learning mathematics. Using the Teaching for Robust Understanding (TRU) framework (Schoenfeld et al., 2016a) and the Substitution, Augmentation, Modification, Redefinition (SAMR) model (Puentedura, 2006) in this qualitative research, I employed a case study approach to understand the challenges faced by a teacher and ways of …
Investigating Student Self-Beliefs And Learning Metrics In Online Courseware: A Quantitative Inquiry, Rachel Van Campenhout
Investigating Student Self-Beliefs And Learning Metrics In Online Courseware: A Quantitative Inquiry, Rachel Van Campenhout
Electronic Theses and Dissertations
Online courseware is an emerging educational technology that has the potential to reach students at scale. Designed with cognitive and learning science principles, courseware utilizes effective methods to maximize learning outcomes for students. Mindset (implicit theories of ability) and self-efficacy are two widely researched self-belief topics which have been shown to influence student learning outcomes and self-concepts. These self-belief theories are not specific to a domain and therefore could be measured and analyzed in relation to student learning metrics from any subject. The purpose of this nonexperimental correlational research study is to investigate the relationships between student self-beliefs and key …
A Program Evaluation Of Teacher And Administrator Perceptions Of Technology Integration At The K-6 Level In The Seneca Valley School District And The Impact Of Covid-19, Bria Koch
Electronic Theses and Dissertations
Education and learning were upended in 2020 due to the COVID-19 pandemic. Approximately 1.6 billion learners in more than 190 countries were impacted by the pandemic with 90 percent of countries adopting digital or remote learning policies (United States Department of Education, 2021). This program evaluation of teachers’ and administrators’ perspectives examined how well technology integration was taking place in K-6 grade classrooms in the Seneca Valley School District. Due to the interruption of traditional learning because of the COVID-19 pandemic, it was an opportune time to examine both teachers’ and administrators’ perceptions about the district’s level of success at …
Analysis Of Water Quality And Fish Communities Of Crooked Creek, Tributary To The Allegheny River In Southwestern Pennsylvania, Katherine Stupar
Analysis Of Water Quality And Fish Communities Of Crooked Creek, Tributary To The Allegheny River In Southwestern Pennsylvania, Katherine Stupar
Electronic Theses and Dissertations
Crooked Creek is a tributary of the Allegheny River with a drainage area of 292 square miles. It has been historically affected by mine drainage pollution. Extensive cleanup and monitoring efforts by the Commonwealth of Pennsylvania and the U.S. Army Corps of Engineers (USACE) have taken place over the last four decades. Unconventional oil extraction, or fracking, presents an emerging threat to the water quality of this stream and the health of its fish communities. Here we perform an analysis of the Crooked Creek watershed utilizing backpack electrofishing, eDNA metabarcoding, and various methods of water quality analysis. Seven sites on …
The Contribution Of Ethical Governance Of Artificial Intelligence & Machine Learning In Healthcare, Tina Nguyen
The Contribution Of Ethical Governance Of Artificial Intelligence & Machine Learning In Healthcare, Tina Nguyen
Electronic Theses and Dissertations
With the Internet Age and technology progressively advancing every year, the usage of Artificial Intelligence (AI) along with Machine Learning (ML) algorithms has only increased since its introduction to society. Specifically, in the healthcare field, AI/ML has proven to its end-users how beneficial its assistance has been. However, despite its effectiveness and efficiencies, AI/ML has also been under scrutiny due to its unethical outcomes. As a result of this, two polarizing views are typically debated when discussing AI/ML. One side believes that AI/ML usage should continue regardless of its unsureness, while the other side argues that this technology is too …
Biomaterials: From Scaffold Design To Implant Optimization, Jennifer Marie Armen
Biomaterials: From Scaffold Design To Implant Optimization, Jennifer Marie Armen
Electronic Theses and Dissertations
This work encompasses three individual projects concerning biomaterials and their modifications. Chemically-Induced Cross-Linking of Peptidic Fibrils for Scaffolding Polymeric Particles and Macrophages EAK16-II (EAK) is a self-assembling peptide (SAP) that forms β-sheets and βfibrils through ionic-complementary interactions at physiological ionic strengths. The soft materials can be injected in vivo, creating depots of drugs and cells for rendering pharmacological and biological actions. The scope of the applications of EAK is sought to extend to tissues through which the flow of extracellular fluid tends to be limited. In such anatomical locales the rate and extent of the fibrilization are limited insofar as …
Turbulent Transport Of Dissolved Oxygen In Natural Channels, Alanna Bachtlin
Turbulent Transport Of Dissolved Oxygen In Natural Channels, Alanna Bachtlin
Electronic Theses and Dissertations
The transport and mixing of dissolved oxygen (DO) is important to replenish the oxygen depleted by natural processes; gas transfer in general has implications for ecosystem metabolism and greenhouse gas transfer. Currently, reaeration coefficients can be found through gas tracer methods, which estimates one-way gas transfer. For this project, a net oxygen consumption rate, , was developed using the similarity equations, which provides a value from DO and velocity profiles specific to a stream site. Additionally, three models to calculate friction velocity, which is required for oxygen consumption rate, were compared. Reynolds stresses, mathematically developed in the Reynolds-Averaged Navier-Stokes Equations, …
Investigating The Effect Of Dissolved Oxygen-Assisted Corneal Cross-Linking (Cxl) On Porcine Corneas, Julianni Dar
Investigating The Effect Of Dissolved Oxygen-Assisted Corneal Cross-Linking (Cxl) On Porcine Corneas, Julianni Dar
Electronic Theses and Dissertations
Corneal cross-linking is a clinical procedure that is known to stop the progression of keratoconus, an eye disease that affects the cornea’s structure, ultimately leading to vision loss in its advanced stages. The typical treatment plan includes riboflavin and UV-A exposure in the hope to increase the mechanical properties of the cornea. There are two types of CXL pathways, with Type-II CXL requiring oxygen. Naturally, the dissolved oxygen is limited in the cornea; therefore, limiting the effect of Type-II CXL. This study proposes to improve the Type-II CXL contribution by integrating dissolved oxygen during the standard CXL treatment used in …
A Microfluidic Assay For Single Cell Bacterial Adhesion Studies Under Shear Stress, Amanda Trusiak
A Microfluidic Assay For Single Cell Bacterial Adhesion Studies Under Shear Stress, Amanda Trusiak
Electronic Theses and Dissertations
The study of bacterial adhesion to host cells is important in understanding bacterial pathogenesis and developing new therapeutic approaches. Here, we studied bacterial adhesion under shear stress using a novel microfluidic method. Specifically, the adhesion of a uropathogenic E. coli strain (FimHOn, ATCC 700928/CFT073) to mannose-modified substrates was studied under flow conditions. The FimHOn E. coli strain expresses FimH which is a mannose-specific adhesin found on the fimbriae that binds to glycoproteins on the epithelium. We developed a microfluidic method that mimics bacterial adhesion to urothelial cells. First, the microfluidic channels were modified by sequentially adsorbing BSA-mannose and BSA onto …