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Full-Text Articles in Entire DC Network
Machine Learning Classification Of Drones, Birds, And Bird-Like Drones Using Radar Micro-Doppler, Camera Imagery, And Radar-Camera Fusion, Kester Magalong Nucum
Machine Learning Classification Of Drones, Birds, And Bird-Like Drones Using Radar Micro-Doppler, Camera Imagery, And Radar-Camera Fusion, Kester Magalong Nucum
Theses and Dissertations
Counter-drone systems employ sensors such as radars and cameras to detect, track, and identify drones. These systems can confuse birds with drones, and the advent of bird-like drones exacerbates this problem. This thesis explores radar micro-Doppler, camera imagery, and their fusion for drone and bird classification. First, micro-Doppler models of quadcopters, birds, and bird-like drones were developed to generate a dataset of synthetic spectrograms for training support vector machine, k-nearest neighbors, Naïve Bayes, and convolutional neural network (CNN) classifiers. Second, transfer learning was applied on YOLOv10, a recently developed You Only Look Once object detector model, to detect and classify …
Earth Analogue Analysis Of Volcanic/Tectonic Interactions With Applications To Venusian Stresses, Michael Ortigoza
Earth Analogue Analysis Of Volcanic/Tectonic Interactions With Applications To Venusian Stresses, Michael Ortigoza
Theses and Dissertations
Venus shares many geological similarities with Earth, yet its tectonic processes and magma injection mechanisms remain poorly understood. A key question in planetary geology is how effusive volcanism persists despite the intense horizontal compression terrestrial bodies experience over time. To explore these issues, we examine the Spanish Peaks dike swarm in Colorado which serves as an ideal site for investigating magma intrusion under compressive stress conditions. Through field mapping, orientation measurements, and structural analysis, we identify a strong relationship between pre-existing joints and dike orientations, suggesting that these fractures serve as critical magma pathways in compressive regimes. Additionally, evidence of …
Utilizing Novel Application Methods To Mitigate Antagonism With Combinations Of Auxin And Grass Control Herbicides, Jake Patterson
Utilizing Novel Application Methods To Mitigate Antagonism With Combinations Of Auxin And Grass Control Herbicides, Jake Patterson
Theses and Dissertations
Auxin and grass control herbicides are often applied in tank mixtures to provide multiple modes of action and to achieve broad-spectrum weed control. Literature indicates that auxin herbicides, when mixed in solution, may antagonize grass control herbicides, resulting in decreased grass weed control compared to the grass herbicide applied alone. Field and laboratory experiments were conducted in 2022, 2023, and 2024 at multiple locations in Mississippi. These experiments had three objectives: 1) evaluate grass weed control with glyphosate and clethodim in response to the simultaneous application with either dicamba or 2,4-D, using a commercially available direct-injection system compared to tank-mix …
Enhancing Chemical Synthesis For Sustainability And Process Monitoring Utilizing Group Ten Metal Catalysis, Amanda M. Perkins
Enhancing Chemical Synthesis For Sustainability And Process Monitoring Utilizing Group Ten Metal Catalysis, Amanda M. Perkins
Theses and Dissertations
This thesis explores two sustainable methodologies by modifying established catalytic processes using group ten metal complexes from nickel and palladium. Efforts were made to provide alternatives for processes that often do not follow the principles of green chemistry. In the first project, a nickel(II) N-heterocyclic carbene complex was used to perform catalytic hydrogenation of 2-acetylpyridine under mild conditions. The complex was synthesized and characterized with techniques including mass spectrometry and 1H-NMR. Following this, the reactions were carried out to optimize conditions and yield moderate conversions. For the second project, the Suzuki-Miyaura cross coupling of 7-chlorotryptophan occurred utilizing a palladium complex …
Stakeholder Opinions On Design And Management Strategies At The Pharr Mounds Site, Lauryn Elizabeth Polito
Stakeholder Opinions On Design And Management Strategies At The Pharr Mounds Site, Lauryn Elizabeth Polito
Theses and Dissertations
The Pharr Mounds site along the Natchez Trace Parkway is a culturally significant burial location that is visited by thousands each year. This site is home to the remains of an ancient group of individuals that the current Chickasaw Nation are descended. To provide culturally sensitive management strategies, enhance visitor experience, and to analyze the perspectives of others on design solutions, a mixed-method approach including individual interviews and online surveys were used for three main stakeholder groups including members from the Chickasaw Nation, employees from the National Park service, and public site visitors. Questions addressed mound significance, site accessibility, interpretation, …
Faculty Perceptions And Use Of Open Educational Resources In Postsecondary Stem Classrooms, Gabriel Posadas
Faculty Perceptions And Use Of Open Educational Resources In Postsecondary Stem Classrooms, Gabriel Posadas
Theses and Dissertations
This study examined how faculty in Science, Technology, Engineering, and Mathematics (STEM) or STEM-related fields perceive and utilize open educational resources (OER) in their classrooms and how faculty characteristics (e.g., age, teaching experience, OER experience) influence their adoption. A quantitative survey was administered to 48 STEM faculty across 8 colleges at a large, southeastern university. Findings revealed that faculty generally acknowledged OER’s benefits, particularly its cost-saving potential, and all faculty without prior OER experience and 86.5% of faculty with OER experience expressed neutral to positive perceptions regarding OER’s ability to reduce financial burdens. Faculty with OER experience also recognized its …
Design And Evaluation Of Hollow Cross-Laminated Timber With Corrugated Cores: A Structural Perspective, Suman Pradhan
Design And Evaluation Of Hollow Cross-Laminated Timber With Corrugated Cores: A Structural Perspective, Suman Pradhan
Theses and Dissertations
This study investigates the integration of small-diameter trees (SDT) into cross-laminated timber by developing cellular cross-laminated timber (CCLT) with corrugated panels in the transverse mid-layer. This innovation addresses sustainable building material demands while mitigating forest fire risks associated with SDT. The research progressed through three phases. First, parametric linear finite element modelling (FEM) examined corrugated geometry's influence on CCLT flexural stiffness. Based on these findings and manufacturing constraints, an optimal geometry was designed and fabricated. Experimental testing validated the FEM predictions and demonstrated CCLT's superior normalized modulus of elasticity by density compared to conventional cross-laminated timber (CLT). Second, using modified …
Removal Of Harmful Algal Bloom Toxin, Microcystin-Lr Via Graphene Coated Polymers, Justin Douglas Puhnaty
Removal Of Harmful Algal Bloom Toxin, Microcystin-Lr Via Graphene Coated Polymers, Justin Douglas Puhnaty
Theses and Dissertations
This study investigates a novel 3D-printed graphene-coated polymer (GCP) for the removal of Microcystin-LR (MC-LR), a harmful cyanotoxin produced during harmful algal blooms (HABs). While graphene nanoplatelets (GnPs) exhibit high adsorption capacity, their powdered form limits practical application. To address this, GnPs were coated onto 3D-printed poly(lactic acid) (PLA) substrates, enabling enhanced handling for field deployment. Surface characterization using laser confocal microscopy, Raman spectroscopy, and thermogravimetric analysis confirmed GnP distribution and coating uniformity. Batch adsorption experiments revealed pseudo-second-order kinetics, a maximum adsorption capacity (qmax) of 596 μg/g, and adsorption behavior best described by the Langmuir isotherm. Statistical analysis and comparison …
“Sometimes The World Don’T Give You What You Need”: Black Motherhood And Kinship As Resistance To Necropolitics In Jesmyn Ward’S Bois Sauvage, Hailey N. Reeder
“Sometimes The World Don’T Give You What You Need”: Black Motherhood And Kinship As Resistance To Necropolitics In Jesmyn Ward’S Bois Sauvage, Hailey N. Reeder
Theses and Dissertations
This thesis explores how Black motherhood and kinship serve as subversive forces within necropolitical landscapes in Jesmyn Ward’s Where the Line Bleeds, Salvage the Bones, and Sing, Unburied, Sing. Drawing on Achille Mbembe’s theory of necropolitics, this study examines how the economic and social constraints of these environments disrupt Black family structures, emphasizing the necessity of kinship for survival. In Where the Line Bleeds, Cille’s absence disrupts traditional family roles, yet kinship networks allow the family to endure. In Salvage the Bones, Esch’s journey redefines the “bad” Black teen mother stereotype, highlighting how kinship offers support amidst stigma. In Sing, …
The Importance Of Community: An Investigation Of Stress, Coping, And The Value Of Social Support For First Responders, Brian Reid
Theses and Dissertations
People are designed to be in community with others, to work together and share the load and weight of life. First responders are a community that has not emphasized the importance of social support to mitigate and buffer against the stress inherent in their jobs. This study investigates the sources of stress, coping methods, and social support of first responders. Results from the first study show the impact of workplace and family stress on the first responder is impactful from the beginning. The secondary study finds that adaptive coping methods are the preferred method to cope with stress and that …
Movement, Microhabitat, And Metapopulations: Improving Our Understanding Of Gopher Frog (Rana [Lithobates] Capito) Ecology In Alabama, Krista Michelle Ruppert
Movement, Microhabitat, And Metapopulations: Improving Our Understanding Of Gopher Frog (Rana [Lithobates] Capito) Ecology In Alabama, Krista Michelle Ruppert
Theses and Dissertations
Gopher frogs (Rana [Lithobates] capito) are a species in decline in the southeastern United States. In Alabama, gopher frogs are a species of greatest conservation need, only known to consistently breed in two ponds in the south of the state; however, efforts to restore breeding ponds and to reintroduce metamorphs throughout their historic range are ongoing. The objectives of this dissertation were to assess trends in gopher frog ecology in Alabama to inform conservation plans. In chapter 2, I used radiotelemetry to assess the post-breeding movements of gopher frogs in 2021 and 2022. I found that frogs in Alabama moved …
Raad-Llm: Adaptive Anomaly Detection Using Llms And Rag Integration, Alicia Russell-Gilbert
Raad-Llm: Adaptive Anomaly Detection Using Llms And Rag Integration, Alicia Russell-Gilbert
Theses and Dissertations
Anomaly detection in complex industrial environments poses unique challenges, particularly in contexts characterized by data sparsity and evolving operational conditions. Predictive maintenance (PdM) in such settings demands methodologies that are adaptive, transferable, and capable of integrating domain-specific knowledge. This work presents RAAD-LLM, a novel framework for adaptive anomaly detection, leveraging large language models (LLMs) integrated with Retrieval-Augmented Generation (RAG). This approach addresses the aforementioned PdM challenges. By effectively utilizing domain-specific knowledge, RAAD-LLM enhances the detection of anomalies in time-series data without requiring fine-tuning on specific datasets. The framework's adaptability mechanism enables it to adjust its understanding of normal operating conditions …
Integrating Case Studies With Meteorologists’ Insight: Assessing Meteorologists’ Perception And Utilization Of Composite Indices, Brianna Marie Salazar
Integrating Case Studies With Meteorologists’ Insight: Assessing Meteorologists’ Perception And Utilization Of Composite Indices, Brianna Marie Salazar
Theses and Dissertations
Meteorologists from sectors, including broadcast, academia, and operations, use derived composite indices such as 0-1km and 0-3km energy helicity index (EHI), effective-layer supercell composite parameter (SCP), fixed-layer and effective layer significant tornado parameter (STP), in addition to other resources, when developing severe local storm forecasts. This study utilizes the Weather Research and Forecasting (WRF) model to create simulations of composite indices for two tornado-producing events: 31 March 2023 and 3 May 1999. With modifications to geographical location, these simulated scenarios are then utilized in the survey to gauge how meteorologists assess where tornado potential is highest. Additionally, a combination of …
Application Of Pu Learning In Detection Of Ddos Attacks, Gagana Sathya Narayana Prasad
Application Of Pu Learning In Detection Of Ddos Attacks, Gagana Sathya Narayana Prasad
Theses and Dissertations
The gcore radar 2024 says, the number of DDoS attacks has been increased by 46% in 12 months. Supervised and unsupervised techniques struggle detecting DDoS attacks due to the scarcity of labeled attack samples and an overwhelming presence of benign traffic. In contrast PU- Learning offers a promising solutions by dividing the data into positive and unlabeled data. This study explores the effectiveness of PU-learning in detecting DDoS attacks by comparing it with unsupervised methods. This method employs PU Bagging, Two Step method and auto-encoder based models to extract meaningful patters from network traffic data, utilizing CICDDoS2017 dataset for evaluation. …
Ecology And Management Of Alligatorweed (Alternanthera Philoxeroides) And An Associated Thrips Biological Control Agent (Amynothrips Andersoni), Samuel Alec Schmid
Ecology And Management Of Alligatorweed (Alternanthera Philoxeroides) And An Associated Thrips Biological Control Agent (Amynothrips Andersoni), Samuel Alec Schmid
Theses and Dissertations
Alligatorweed (Alternanthera philoxeroides), native to South America, is a highly invasive aquatic macrophyte that is globally distributed and particularly problematic in the southeastern United States. In the United States, alligatorweed management has a long history, particularly of chemical and biological control. Alligatorweed management saw early success with a South American flea beetle (Agasicles hygrophila), but this agent’s utility has waned. Despite the long history of alligatorweed invasion, several important research questions remain, and the research in this dissertation seeks to answer some of these questions. This research focuses on multiple and diverse aspects of alligatorweed biology, ecology, and management: (1) …
Assessing The Kinematics And Kinetics About The Knee With An Isokinetic Dynamometer And Force Plates During Field-Based And Lab-Based Trials., Samantha Ann Searles
Assessing The Kinematics And Kinetics About The Knee With An Isokinetic Dynamometer And Force Plates During Field-Based And Lab-Based Trials., Samantha Ann Searles
Theses and Dissertations
The incidence rate in knee injuries has increased over the last 20 years, with women at a 2-8 times higher incidence rate compared to men. This is likely a result of lower neuromuscular control of the trunk, generating less hip muscle activation, and more reliance on the quadriceps, alongside reduced hip, knee, and dorsiflexion angles, paired with increased knee valgus angles, ground reaction forces (GRF), hip adduction, and knee rotation upon landing from jumps. The focus of this study is to determine if knee kinetics and kinematics during field- and lab-based trials are associated with knee injury predictors. Theoretically, if …
Measuring What Matters: A Policy Analysis Of Statewide Accountability Systems Through The Lens Of College And Career Readiness, Steven Deandre Shadwick
Measuring What Matters: A Policy Analysis Of Statewide Accountability Systems Through The Lens Of College And Career Readiness, Steven Deandre Shadwick
Theses and Dissertations
A disconnect exists between statewide accountability systems and college and career readiness (CCR) outcomes measured by the ACT and SAT. The goal of a statewide accountability system is to enable, implement, and support success for all students in areas that demonstrate high academic achievement through federal- and state-mandated metrics. Under the Every Student Succeeds Act (2015), states have been granted flexibility in how to measure CCR via a number of School Quality and Student Success (SQSS) indicators. Through a quantitative correlational design, data were collected from 44 states with ACT and SAT participation rates ≥ 90%, ≤ 10% or closest …
Projected Future Reservoir Impairment In The Conterminous United States Following Three Climate Change Scenarios, Darren James Shoemaker
Projected Future Reservoir Impairment In The Conterminous United States Following Three Climate Change Scenarios, Darren James Shoemaker
Theses and Dissertations
Anthropogenic climate change has been associated with reservoir aging and reduced ecosystem function. Communities throughout the world depend on reservoirs for services such as hydropower, drinking water, flood mitigation, and recreational opportunities. Though reservoirs were typically constructed to meet human needs, they are now also acknowledged as supporting biodiverse aquatic communities. Reservoir managers are expected to maintain services and biodiversity demanded by diverse users despite high uncertainty surrounding how climate will influence reservoirs through time. Additionally, data describing reservoir function at broad spatial extents are often either unavailable, incompatible between agencies, or prohibitively resource-intensive to obtain. Expert opinion surveys are …
Enhancing Profitability In The Air Transport Industry Through Improved Air Passenger Forecasting: A Comparative Analysis Of Arima, Holt-Winters And Lstm Time Series Forecasting Techniques, Megan Skowronek
Theses and Dissertations
Predicting air passenger volumes is crucial for airports and airlines seeking to reduce costs and enhance profitability. Accurate forecasting enables better planning and efficiency improvements within the air transport industry. This study applies LSTM, ARIMA and HW to U.S. air passenger datasets. Each analysis shows a methodology for predicting air passenger volumes across airports, airlines and across airports and airlines simultaneously. ARIMA was found to have limited applicability, since only a subset of the datasets was stationary. LSTM and HW were applicable to all airlines and ARIMA was applicable to no airlines. LSTM had less error compared to HW at …
Does An Adapted Swimming Program Improve Self-Efficacy In Individuals With Intellectual Disability?, Georgia Grace Starr
Does An Adapted Swimming Program Improve Self-Efficacy In Individuals With Intellectual Disability?, Georgia Grace Starr
Theses and Dissertations
BACKGROUND: Short-term adapted swimming programs may improve self-efficacy in individuals with intellectual disability (ID). PURPOSE: We investigated if self-efficacy was improved from the perspectives of swimmers, their parents, and volunteering staff. METHODS: A 5-day program (60 min∙day-1) focused on swim skill development and independence, with each participant supported by a volunteer without disability. Semi-structured interviews were conducted with 5 swimmers (14–35 years, 4 females), 5 parents (40–70 years, all mothers), and 5 volunteers (17–64 years, 4 females). Analysis, using open, structured, and focused coding, highlighted themes aligning with Bandura’s Self-Efficacy Theory (SET)—previous experience, vicarious experience, social persuasion, and feedback—and Self-determination …
An Exploratory Mixed-Methods Investigation Of Previous Sexual Health Communication Between Lesbian, Gay, Bisexual, Or Queer Young Adults And Their Parents, Haley Elizabeth Solace
An Exploratory Mixed-Methods Investigation Of Previous Sexual Health Communication Between Lesbian, Gay, Bisexual, Or Queer Young Adults And Their Parents, Haley Elizabeth Solace
Theses and Dissertations
Research suggests parent-child communication about sexual health can promote positive sexual health outcomes (e.g., Estrada-Martinez et al., 2020; Jayne et al., 2021); however, parent-child sexual health conversations are often infrequent and heteronormative (Estes, 2017). Few studies explore sexual health communication between LGBQ youth and their parents. This study explores previous experiences with parent-child sexual health communication between seven LGBQ young adults, aged 18 to 26, and four of their heterosexual mothers, to better understand parent-child sexual health communication and differences between parental-child reflections. Findings suggest LGBQ young adults and parents recall similar experiences, however, perceived discomfort and parental competency differently. …
Zeroizing Trust In A Naïve Federated Zero Trust Environment, Keith E. Strandell
Zeroizing Trust In A Naïve Federated Zero Trust Environment, Keith E. Strandell
Theses and Dissertations
The position of the United States on the global stage is predicated on information dominance and the ability to project power through cooperative engagements with mission partners in both wartime and peacetime. Recent cyber-attacks highlighted the need for a more robust cybersecurity posture. As the United States progresses toward the adoption of Zero Trust, it is incumbent on the Department of Defense to assess the impact to the ability to share data across strategic partnerships while securing the data of both the United States and its partners. This paper proposes research into ensuring an environment rooted in Zero Trust and …
Effects Of Environmental Stress And Antimicrobials On The Health, Microbiome, And Product Shelf-Life Of Channel And Hybrid Catfish, Guyue Tang
Theses and Dissertations
Two studies investigated various aspects of channel and hybrid catfish production and processing. The first study examined the effects of ammonia stress (15 mg/L vs. 1 mg/L control) on growth performance and fillet quality. While channel catfish demonstrated superior growth, ammonia stress minimally impacted the sensory profiles of both species. Gut microbiota analysis revealed species-specific differences, with Lactococcus lactis dominating hybrid catfish communities. The second study evaluated buffered vinegar treatment (1.5%) on fillet shelf life during refrigerated storage. Vinegar-treated fillets maintained better microbiological quality, with aerobic plate counts remaining below 7 log cfu/g through day 6, while untreated fillets exceeded …
Synthetic Data Augmentation For Retinoblastoma Using Diffusion, Andrew Thompson
Synthetic Data Augmentation For Retinoblastoma Using Diffusion, Andrew Thompson
Theses and Dissertations
Many AI models rely on large and high quality datasets for optimal training. In certain cases, data can be difficult or expensive to obtain, making training difficult. Rare medical conditions are one of these cases. Datasets for retinoblastoma are severely lacking in quantity. Diffusion has been used to create synthetic data in the industrial, medical, and financial domains. By applying the latest Diffusion methods to retinoblastoma, this work seeks to improve predictive model performance on identifying retinoblastoma.
Estimation Of Soybean Root Traits Using Computer Vision And Deep Learning, Muhammad Usman
Estimation Of Soybean Root Traits Using Computer Vision And Deep Learning, Muhammad Usman
Theses and Dissertations
Root phenotyping provides insights into root structure, function, and response to environmental stimuli, aiding researchers in improving crop yields, developing new plant varieties, and enhancing plant health. Traditionally, measuring root traits, such as length and area, is manual, time-consuming, and resource intensive. This study introduces a deep learning-based computer vision method for soybean root segmentation and traits estimation using RGB (red, green, blue) images captured under controlled illumination. A separate web-based application was also developed that can extract the root length and area using RGB images. A diverse set of 3,363 soybean root images was collected using an in-house root …
The Role Of K-12 Educators In Shaping Stem Pathways: Examining Social Capital And Self-Efficacy In Stem Education, Holly Trisch
The Role Of K-12 Educators In Shaping Stem Pathways: Examining Social Capital And Self-Efficacy In Stem Education, Holly Trisch
Theses and Dissertations
This dissertation examines the impact of K-12 educators on students’ pathways in STEM (Science, Technology, Engineering, and Mathematics) by focusing on two main factors: the social capital of K-12 and elementary school teachers and the self-efficacy of preservice teachers in STEM education instruction. The first study investigates the social capital of first year engineering students, emphasizing the relationships and resources they gained during their K-12 education that influenced their decision to major in engineering. A quantitative study using survey data collected from first-year undergraduate engineering students indicates that K-12 educators play a crucial role by providing mentorship and resources that …
Shifting Sands: Moving From Reality To Unreality, Aaron Waterson
Shifting Sands: Moving From Reality To Unreality, Aaron Waterson
Theses and Dissertations
This is a series of stories that shifts from literary fiction to science fiction, each with their own inspiration and message. Inspirations include The Twilight Zone, Benjamin Percy, Da-Lin, Gabriel Garcia Marquez, The Sandman, and Endymion. Each of these stories is conversant with norms and traditions of storytelling and the connections between these and their inspirations are elaborated on in the Introduction that accompanies the collection as a whole.
Work-Life Balance And The Impact Of Covid-19 On Faculty At Historically Black Community Colleges (Hbccs), Taneshia Turner Winston
Work-Life Balance And The Impact Of Covid-19 On Faculty At Historically Black Community Colleges (Hbccs), Taneshia Turner Winston
Theses and Dissertations
This research study was conducted to determine how the COVID-19 pandemic affected the work-life balance of faculty at HBCCs based on their race, gender, age, marital status, and tenure status. The study employed a quantitative research design utilizing Exploratory Factor Analysis (EFA) to conduct time-based activities separately and group perception-based response variables into meaningful categories to uncover patterns. To analyze the differences in race, gender, age, marital status, and tenure status, Regression and Chi-square test analyses were used to evaluate the collected data. Regression analysis explored relationships between time spent on activities and perceptions of stress, productivity, and satisfaction. Chi-square …
An Investigation Into The Inclusivity, Methodology, And Education Of Severe Weather In K-12 Schools, Stephen Holden Wooten
An Investigation Into The Inclusivity, Methodology, And Education Of Severe Weather In K-12 Schools, Stephen Holden Wooten
Theses and Dissertations
Schools are a focal point in the lives of everyone in the community, especially teachers, parents, and students. Investigating the connection between these individuals and tornadoes by identifying shortcomings in education, training, and emergency procedures can induce more effective and informed decision-making for future encounters. This study evaluated the inclusivity of tornado protocols for students with disabilities, uncovered where parents prefer their child to shelter in early dismissal situations and clarified how extensively natural hazard education and tornado drills are covered in schools. Two surveys and semi-structured interviews were used to obtain responses from earth science teachers, K-12 guardians, and …
Myxozoan Diversity And Life Cycles In Catfish Production Ponds In Mississippi, Usa, Ethan Woodyard
Myxozoan Diversity And Life Cycles In Catfish Production Ponds In Mississippi, Usa, Ethan Woodyard
Theses and Dissertations
Catfish aquaculture is a critical industry in the United States and Mississippi in particular. The industry is beset by depredation, rising feed costs, competition with imports, and loss to disease. Chief among these is the myxozoan parasite and causative agent of proliferative gill disease, Henneguya ictaluri. In chapter 2, novel molecular markers for greater resolution in species identification of these parasites are provided, allowing more robust life cycle inference, species-level identifications, and inference of evolutionary relationships through molecular phylogenetic analyses. Chapters 3–5 apply the approaches developed in Chapter 2 to a broad array of taxa beyond catfish-infecting Henneguya spp. These …