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Derivations On Smooth Hensel-Steinitz Algebras, Shelley David Hebert May 2024

Derivations On Smooth Hensel-Steinitz Algebras, Shelley David Hebert

Theses and Dissertations

I define and analyze the Hensel-Steinitz algebra ����(��), a crossed product C∗-algebra associated with multiplication maps on continuous functions on the ring of ��-adic integers. In ����(��), I define an ideal and identify it with a known algebra. From this, I construct a short exact sequence conveying the structure of the algebras. I further identify smooth subalgebras within both ����(��) and its ideal, classify derivations on those algebras, and compare the classification with derivations on other smooth algebras. I also analyze the algebras associated with multiplication maps based on the multiplier being a root of unity, not a root of …

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Evaluating The Effects Of Poultry Litter Amendments On Escherichia Coli Populations, Virulence Genes, And Antimicrobial-Resistance Genes In Poultry Litter During A Live Grow-Out., Faith Henson May 2024

Evaluating The Effects Of Poultry Litter Amendments On Escherichia Coli Populations, Virulence Genes, And Antimicrobial-Resistance Genes In Poultry Litter During A Live Grow-Out., Faith Henson

Theses and Dissertations

Poultry litter can harbor pathogenic bacteria, including avian pathogenic Escherichia coli (APEC). Applying litter amendments is one strategy to improve bird health and potentially reduce pathogens. Biochar and PLT were applied as litter amendments in a live bird trial to study their effects on E. coli populations, APEC virulence genes (VAG), and antimicrobial resistance (AMR) genes. Samples were collected at days 0, 17, 29, and 41 to enumerate E. coli and store bacterial isolates for antimicrobial-resistance gene analysis. Data analysis showed litter amendments did not significantly affect overall E. coli populations. Grow-out time impacted E. coli populations, with reductions occurring …

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Insect Management Strategies Using Insect Growth Regulators In Mississippi Soybean, Sawyer Clayton Hopkins May 2024

Insect Management Strategies Using Insect Growth Regulators In Mississippi Soybean, Sawyer Clayton Hopkins

Theses and Dissertations

Soybean looper and corn earworm are economically damaging pests in Mississippi soybeans. Chemical control plays a large role in the control of these pests. Some producers have started applying an automatic co-application of insecticide and fungicide at the R3 growth stage. Insect growth regulators are a commonly used insecticide for this management strategy. The purpose of this research was to evaluate the impact of insect growth regulators on soybean looper and corn earworm mortality when applied with an automatic fungicide application at the R3 growth stage in soybean. Insecticide treatments included methoxyfenozide, diflubenzuron, and novaluron. These insect growth regulators showed …

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Producing College And Career Ready Graduates In Rural High Poverty School Districts, Hilute Hudson Iii May 2024

Producing College And Career Ready Graduates In Rural High Poverty School Districts, Hilute Hudson Iii

Theses and Dissertations

This capstone project addresses the crucial task of equipping students from rural and poverty-stricken school districts for success beyond high school. While conventional markers of academic achievement often center around standardized testing, this study takes a wider perspective, emphasizing comprehensive approaches to education. By conducting a quantitative analysis that includes surveys of staff and faculty, this research explores the effectiveness of different strategies aimed at nurturing college and career readiness among students in these districts. The findings demonstrate a powerful narrative: educators can greatly improve graduation rates and post-graduation success by going beyond traditional test preparation methods. Key strategies include …

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The Influence Of Cotton Technology On Plant Based Scouting Methods And Performance Of Commonly Used Insecticides For Tarnished Plant Bug (Hemiptera: Miridae)Prior To Bloom In Mississippi Cotton, James Michael Huoni Jr. May 2024

The Influence Of Cotton Technology On Plant Based Scouting Methods And Performance Of Commonly Used Insecticides For Tarnished Plant Bug (Hemiptera: Miridae)Prior To Bloom In Mississippi Cotton, James Michael Huoni Jr.

Theses and Dissertations

The focus of this research was to evaluate commonly used insecticides and plant based scouting practices in cotton, Gossypium hirsutum (L.), prior to bloom for tarnished plant bug, Lygus lineolaris (Palisot de Beauvois), management. As well as determine the influence of ThryvOn technology on these research objectives. Data indicate that imidacloprid may have a limited fit in non-ThryvOn cotton, while the additional mode of action afforded by ThryvOn technology could extend imidacloprid and other insecticide’s effective use prior to bloom. Additionally, sulfoxaflor and acephate remain the best products for pre-bloom management. When evaluating differences between plant based scouting methods prior …

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Catalytic Upgrading Of Rice Straw Bio-Oil With Alcohols Using Different Bimetallic Magnetic Nano-Catalysts, Alhassan Ibrahim May 2024

Catalytic Upgrading Of Rice Straw Bio-Oil With Alcohols Using Different Bimetallic Magnetic Nano-Catalysts, Alhassan Ibrahim

Theses and Dissertations

This dissertation addresses the surging global demand for sustainable energy alternatives and biobased products, driven by population growth and the imperative to shift away from finite fossil fuels amidst climate change. The research centers on the catalytic upgrading of rice straw bio-oil, employing bimetallic magnetic nano-catalysts on rice straw-derived biochar to align with the imperative for environmentally conscious energy solutions. In the initial phase, the study systematically explores upgrading processes using varied alcohols, specifically ethanol, and butanol, under mild conditions to enhance bio-oil quality. The detailed evaluation of catalyst composition reveals a notable reduction in oxygen content, coupled with a …

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Evaluating The Vertical Transmission Potential Of Salmonella Reading In Broiler Breeders, Abubakar Shitu Isah May 2024

Evaluating The Vertical Transmission Potential Of Salmonella Reading In Broiler Breeders, Abubakar Shitu Isah

Theses and Dissertations

Salmonellosis, a significant foodborne illness in humans, is caused by Salmonella, with poultry and poultry products acting as significant reservoirs and sources of human infection. Salmonella enterica subspecies enterica serotype Reading has recently emerged as a notable foodborne pathogen responsible for extensive multistate human outbreaks in North America. This study focused on evaluating the capacity of the emerged serotype to colonize broiler breeder reproductive tissues and potentially contaminate eggs, indicating the potential for vertical transmission. For this investigation, two Salmonella Reading strains were utilized, one associated with outbreaks and another non-outbreak strain. Both strains were initially modified with bioluminescent marker …

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Effect Of Pressure On Viscoplasticity And Its Usefulness In Designing Impact Devices, Marouane Jarachi May 2024

Effect Of Pressure On Viscoplasticity And Its Usefulness In Designing Impact Devices, Marouane Jarachi

Theses and Dissertations

This work investigates the interactions between impact devices and material response in the realm of solid mechanics, utilizing explicit finite element analysis and experimental methods based on the split-hopkinson pressure bar. It focuses on understanding how tools like jackhammers use hammer strikes to generate pressure waves, then the wave is transferred through a chisel to materials such as rocks to cause fracture. The interaction between the wave and the rock is complex. Under dynamic loading the mechanical response of materials changes and significant losses occur due to reflections and inefficient pressure states. This research explores how chisel geometry can be …

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An Examination Of Middle School And High School Special Education Students In Inclusion Classrooms Employing Co-Teaching Model, Antwaunette Jones-Taylor May 2024

An Examination Of Middle School And High School Special Education Students In Inclusion Classrooms Employing Co-Teaching Model, Antwaunette Jones-Taylor

Theses and Dissertations

The Individuals with Disabilities Education Act mandates that all school districts provide a free appropriate public education to students with Individualized Education Plans in their least restrictive environment. Co-teaching in inclusion classrooms is a collaborative effort, with a general education teacher and a special education teacher, to provide academic and behavioral support to students with disabilities with their non-disabled peers. A review of the literature identified several studies conducted over the years that document the effects of employing co-teaching models in inclusion classrooms for middle school special education students and high school special education students. The purpose of this qualitative …

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Improving Cultural Safety: A Thematic Analysis Of Older Rural African Americans’ Experiences With The U.S. Healthcare System, Sarah Marie Israel May 2024

Improving Cultural Safety: A Thematic Analysis Of Older Rural African Americans’ Experiences With The U.S. Healthcare System, Sarah Marie Israel

Theses and Dissertations

Despite an increase in research regarding the healthcare outcomes and experiences of diverse groups, some significant gaps in the literature remain. Among the most understudied and underserved groups are those with intersectional identities. Although researchers have made significant efforts to increase research regarding health care experiences of people of color, older adults, and rural populations, less is known about the health care experiences of older rural African Americans. Due to the lack of research focusing on the unique experiences of this intersectional group, qualitative research was an important first step towards broadening this research base. This study utilized a cultural …

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Spatiotemporal Characteristics Of Instrument Meteorological Conditions (Imc) In The Southern Appalachian Mountains, Holley Kamba May 2024

Spatiotemporal Characteristics Of Instrument Meteorological Conditions (Imc) In The Southern Appalachian Mountains, Holley Kamba

Theses and Dissertations

This research aims to analyze the spatial and temporal characteristics of instrument meteorological conditions (IMC) over the Southern Appalachian Region from 2008 to 2023, utilizing Meteorological Terminal Aerodrome Report (METAR) stations across six USGS-defined physiographical provinces. IMC is defined as visibility less than three statute miles and/or cloud ceiling heights less than 1,000 feet above ground. Percentage of hours reporting IMC are considered on an annual, seasonal, and hourly basis. The greatest increase in IMC over the period occurs in the Piedmont province, and the greatest decrease in the Interior Low Plateaus province. All provinces experience the greatest amount of …

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Identifying Potential Antibiotic Uptake Mechanisms Of Streptococcus Pneumoniae, Yuri Laguna Terai May 2024

Identifying Potential Antibiotic Uptake Mechanisms Of Streptococcus Pneumoniae, Yuri Laguna Terai

Theses and Dissertations

Streptococcus pneumoniae (pneumococcus) is a commensal gram-positive colonizer of the human nasopharynx capable of causing diseases including otitis media, pneumonia, bacteremia, and meningitis. Although it is often a harmless colonizer, there is a high rate of mortality and morbidity among the immunocompromised, elderly, and young children. While these infections can often be treated with antibiotics, resistance to numerous antibiotics is increasing. Antibiotic resistance is a well-studied dilemma; however, little information is known of how bacteria take up certain antibiotics. Because most antibiotics cannot diffuse freely across the bacterial cell wall, we hypothesize that metabolite transport proteins participate in the uptake …

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Socioeconomic Status And Rural Community College Students’ Academic Outcomes, Robert Jason Kelly May 2024

Socioeconomic Status And Rural Community College Students’ Academic Outcomes, Robert Jason Kelly

Theses and Dissertations

The purpose of this quantitative research study was to determine if differences exist in academic achievement based on student SES as measured by grade point average (GPA), credit hours earned, and completion of the academic year for rural community college students enrolled during the 2018-19 academic year. The study used existing data from a multi-campus rural community college located in the Southeastern region of the United States. To answer the research questions, existing data were collected from this community college. The independent variable collected was SES, as measured by Pell grant eligibility. The dependent variables collected included GPA, credit hours, …

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Multi-Cloud Architecture Attacks Through Application Programming Interfaces, Theodore Edward Lander Jr. May 2024

Multi-Cloud Architecture Attacks Through Application Programming Interfaces, Theodore Edward Lander Jr.

Theses and Dissertations

Multi-cloud applications are becoming a universal way for organizations to build and deploy systems. Multi-cloud systems are deployed across several different service providers, whether this is due to company mergers, budget concerns, or services provided with each provider. With the growing concerns of potential cyber attacks, security of multi-cloud is an important subject, especially within the communications between systems through Application Programming Interfaces (APIs). This thesis presents an in depth analysis of multi-cloud, looking at APIs and security, creates a mock architecture for a multi-cloud system, and executes a cyber attack on this architecture to demonstrate the catastrophic effects that …

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Adolescent Black Girls Anger And Aggression: What We Can Learn, Dawn Michelle Latiker May 2024

Adolescent Black Girls Anger And Aggression: What We Can Learn, Dawn Michelle Latiker

Theses and Dissertations

This case study aimed to understand adolescent Black girls’ response when becoming angry as related to verbal and physical aggression. The study focused on the triggers for anger of 7 Black girls, current strategies in place at the school to help manage their anger and aggression, and it sought to determine if the girls were able to recognize when they became angry. This information is of importance because the school suspension rate has increased for Black girls (Morris, 2013), and there are limited studies to help them manage their anger in order to feel accepted in schools, develop relationships in …

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Disruptors And Resilience Capabilities Of Pharmaceutical Supply Chains Exposed To Rare Catastrophic Disasters: Case Studies Of One Localized And One Global Disaster, Jeanne-Marie Elizabeth Lawrence May 2024

Disruptors And Resilience Capabilities Of Pharmaceutical Supply Chains Exposed To Rare Catastrophic Disasters: Case Studies Of One Localized And One Global Disaster, Jeanne-Marie Elizabeth Lawrence

Theses and Dissertations

In recent years, rare catastrophic disasters have triggered pharmaceutical supply chain disruptions, resulting in product shortages and other problems that have negatively impacted healthcare delivery. Since the health sector is part of many nations’ critical infrastructure, ensuring minimal disruption in the supporting supply chains is an essential aspect of national security. While traditional risk management approaches have proven adequate for handling independent routine operational risks, these methods are inadequate for infrequent disruptive risks that propagate further risks, producing a domino effect in complex systems. Since today’s pharmaceutical supply chains have many characteristics of complex systems, elucidating the disruptive risks and …

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Common Mode Electromagnetic Interference Attenuation For Dc/Ac Inverters Using Enhanced Sinusoidal Frequency Modulation Technique, Dinh Le May 2024

Common Mode Electromagnetic Interference Attenuation For Dc/Ac Inverters Using Enhanced Sinusoidal Frequency Modulation Technique, Dinh Le

Theses and Dissertations

Common mode (CM) electromagnetic interference (EMI) can compromise electronics systems, interfere with communication systems, and degrade mechanical systems. Multiple inverters can also generate excessive CM EMI that often exceeds individual inverter EMI standards. Due to their weight, volume, cost, and suboptimal performance, active and passive filters and chokes are inefficient as EMI mitigation options. By utilizing frequency modulation (FM) or spread spectrum frequency modulation (SSFM), EMI energy is dispersed. In spite of not requiring expensive, bulky, and heavy filters, these techniques produce significant ripples in output voltages and currents. This dissertation uses enhanced sinusoidal frequency modulation to reduce CM EMI …

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Abundance And Control Of Nuisance Watershield (Brasenia Schreberi) Populations In Mississippi, Mackenzie M. Lee May 2024

Abundance And Control Of Nuisance Watershield (Brasenia Schreberi) Populations In Mississippi, Mackenzie M. Lee

Theses and Dissertations

Aquatic nuisance plants (ANS), like watershield (Brasenia schreberi), negatively affect water chemistry, ecosystem ecology, and human uses of waterbodies if not properly managed. Understanding ecological predictors as well as efficient control strategies is needed for successful control of ANS. This research assessed 1) potential environmental and ecological predictors of watershield prevalence along with 2) submersed injections of flumioxazin herbicide for watershield control. Twenty-one lakes in the state of Mississippi were surveyed for watershield presence. Watershield prevalence was not correlated to water clarity or plant diversity suggesting these are not drivers of watershield prevalence. A series of mesocosm and field trials …

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Determine The Composition Of Spoilage Bacteria And Their Dynamic Changes In Fresh Broiler Breast Meat During Refrigerated Storage, Dylan Joseph Lesak May 2024

Determine The Composition Of Spoilage Bacteria And Their Dynamic Changes In Fresh Broiler Breast Meat During Refrigerated Storage, Dylan Joseph Lesak

Theses and Dissertations

Traditional plating methods for bacterial enumeration can be limited, but the development of high-throughput DNA sequencing, such as Oxford Nanopore Technologies (ONT), can provide rapid and highly specific alternative for species-level identification. In this study, ONT amplicon sequencing was applied to fresh broiler breast meat to identify their bacterial composition and monitor their dynamic changes. The sequencing data were complemented by sensory panels, physicochemical analysis, and traditional plating methods. Over time, the bacterial diversity decreased within and across samples. By the end of shelf-life, Pseudomonas fragi, Pseudomonas lundesis, and Brochothrix thermosphacta became the most prevalent species. These bacteria were associated …

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The Analysis And Comparison Of Cardiac Time Intervals Via Seismocardiography., Aysha Jenea Mann May 2024

The Analysis And Comparison Of Cardiac Time Intervals Via Seismocardiography., Aysha Jenea Mann

Theses and Dissertations

Cardiac time intervals (CTIs) are vital indicators of cardiac health and can be estimated using a combination of electrocardiography (ECG) and seismocardiography (SCG). This study investigates the impact of SCG sensor location across the sternum on CTI estimations and heart rate variability parameters. Signal processing algorithms were developed to detect the opening and closure of heart valves on SCG for CTI calculation. A novel ECG-independent method was also developed based on template matching to determine similar parameters solely based on SCG. Comparative analysis with gold-standard methods were conducted on the SCG fiducial points, evaluating accuracy and performance. Results indicate a …

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Effectiveness Of Omeka Virtual Collections For Engaging Dunn-Seiler Museum’S Middle School Audiences, Amanda Mayo May 2024

Effectiveness Of Omeka Virtual Collections For Engaging Dunn-Seiler Museum’S Middle School Audiences, Amanda Mayo

Theses and Dissertations

This study assessed effectiveness of the Dunn-Seiler Museum's Omeka Virtual Platform by comparing student learning after virtual and hands-on informal outreach activities. The research, conducted in two Mississippi middle schools, focused on students’ (N=99) content gains and affective responses when engaging with fossil specimens that illustrate shifts in sea levels in Mississippi’s geological past. Data were categorized into three sections: content, affective response, and drawing portion. This mixed-methods research encompassed scoring student tests, coding student drawings, and identifying stable themes through teacher interviews. Analysis of pre-and post-tests for Control (hands-on) and Experimental (virtual specimens) groups revealed no significant differences in …

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The Impact Of Financial Aid Awards On Alabama Community College Student Success, Theresa V. Mays May 2024

The Impact Of Financial Aid Awards On Alabama Community College Student Success, Theresa V. Mays

Theses and Dissertations

Financial pressures, encompassing factors such as tuition, fees, books, and work-life balance, consistently substantially influence student success in higher education. Existing research highlights finances' significant role in a student's withdrawal decision. This study aimed to assess the impact of financial aid awards on the retention, persistence, and completion of students enrolled in two community colleges in Alabama, primarily those residing in rural or urban areas. The research focused on the retention and completion outcomes of first-time, full-time students who began their enrollment at two community colleges, UCC and RCC, in the fall of 2017 and received financial aid. Utilizing a …

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Topical Ropivacaine Hydrochloride 0.5% And Lidocaine Hydrochloride 2% Significantly Reduce Corneal Sensitivity Without Short-Term Negative Side Effects In Horses, Michael Minaldi May 2024

Topical Ropivacaine Hydrochloride 0.5% And Lidocaine Hydrochloride 2% Significantly Reduce Corneal Sensitivity Without Short-Term Negative Side Effects In Horses, Michael Minaldi

Theses and Dissertations

Local anesthesia is critical for performing corneal procedures in horses. Studying non- ophthalmic local anesthetics for corneal use is necessary because the efficacy and availability of ophthalmic preparations may be limited. This study aimed to evaluate the effects and potential adverse consequences of ropivacaine hydrochloride 0.5% and lidocaine hydrochloride 2% when applied topically to the corneas of eight healthy equids compared to an eyewash control. Data collection occurred over one week. Corneal touch threshold (CTT) was assessed via Cochet-Bonnet esthesiometry before and at pre-determined times after medication application. Ocular toxicity was assessed immediately following each trial and prior to the …

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Uncertainty Analysis For Runoff, Crop Yield, Sediment, And Nutrient Loads In The Mississippi Delta Region Using Apex, Javier Fernando Méndez Monroy May 2024

Uncertainty Analysis For Runoff, Crop Yield, Sediment, And Nutrient Loads In The Mississippi Delta Region Using Apex, Javier Fernando Méndez Monroy

Theses and Dissertations

Understanding the dynamics of agricultural basins has been difficult for decision-makers when developing cost-effective plans. An uncertainty analysis evaluates the impact of information gaps on hydrologic model’s output and performance. The Agricultural Policy/Environmental Extender (APEX v1501) was used to predict runoff, crop yield, sediment load, total phosphorus, and total nitrogen from agricultural fields in the Mississippi Delta to investigate the impact of using different input variables (climate, soils, and management practices) on mechanistic models. Results indicated that the use of surrogate information such as weather data from close weather stations, a predominant soil series, and simulated irrigation schedules, could be …

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Exploring Homeschool Parents’ Willingness To Incorporate Agriculture Into Curriculum: Parental Perceptions Of Teaching Agricultural Education., Allyson Moore May 2024

Exploring Homeschool Parents’ Willingness To Incorporate Agriculture Into Curriculum: Parental Perceptions Of Teaching Agricultural Education., Allyson Moore

Theses and Dissertations

Students in public and private schools have a greater opportunity to receive access to agriculture education, yet there is a group of students who are being left behind in the opportunity to receive agriculture literacy. Many students do not have access to agriculture education, yet there is a strong urge for graduates with agricultural degrees. There is a lack of research in homeschooled students receiving agriculture curriculum in their studies. As the population continues to steadily grow, the need for agriculturally literate consumers has increased. Promoting students' ability to receive agriculture curriculum will build agriculture literacy within the education system. …

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Uncertainty-Aware Path Planning On Aerial Imagery And Unknown Environments, Charles Alan Moore May 2024

Uncertainty-Aware Path Planning On Aerial Imagery And Unknown Environments, Charles Alan Moore

Theses and Dissertations

Off-road autonomous navigation faces a significant challenge due to the lack of maps or road markings for planning paths. Classical path planning methods assume a perfectly known envi- ronment, neglecting the inherent perception and sensing uncertainty from detecting terrain and obstacles in off-road environments. This research proposes an uncertainty-aware path planning method, URA*, using aerial images for autonomous navigation in off-road environments. An ensemble convolutional neural network model is used to perform pixel-level traversability estima- tion from aerial images of the region of interest. Traversability predictions are represented as a grid of traversal probability values. An uncertainty-aware planner is applied …

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Continuum And Discrete Models For Particle-Based Heat Exchangers In Thermal And Thermochemical Energy Storage, Ashreet Mishra May 2024

Continuum And Discrete Models For Particle-Based Heat Exchangers In Thermal And Thermochemical Energy Storage, Ashreet Mishra

Theses and Dissertations

Thermal energy storage (TES) systems based on renewable energy sources (concentrated solar, wind, and photovoltaic etc.) are crucial to reducing dependence on conventional energy generation systems and reducing renewable energy’s intermittent nature. TES can be utilized in conjunction with concentrated solar power (CSP) in particle-based power cycles where the particles can be charged (heat addition) using solar energy and then discharged (heat extraction) using particle-based heat exchangers (HX). Efficient particle based HXs are vital in coupling heat transfer fluid (HTF) from thermal receivers to power cycle working fluid (WF). Heat transfer enhancement is essential for adopting particle-based moving packed-bed heat …

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Submissive Natures, Subversive Acts: Power, Prescriptive Literature, And The Female Voice In Shakespeare’S Comedies, Joseph N. Newell May 2024

Submissive Natures, Subversive Acts: Power, Prescriptive Literature, And The Female Voice In Shakespeare’S Comedies, Joseph N. Newell

Theses and Dissertations

This thesis explores prescriptive literature and conduct books, specifically The Book of Homilies, and how these prescriptions manifest in Shakespeare’s work. This text examines the depictions of marital relationships and argues that the actions of husbands in two of Shakespeare’s comedies, The Taming of the Shrew and The Merchant of Venice, deviate from prescriptive ideals that homilies deem proper for the husband-and-wife relationship. Through the combination of new historicism and gender criticism, this thesis suggests that Katherine and Portia use submission to gain agency in moments when they seem to have none while showing that the men do not fulfill …

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Waste Separation And Perceptions Of Environmental Health In A College Student Population, Anna Foster Nickels May 2024

Waste Separation And Perceptions Of Environmental Health In A College Student Population, Anna Foster Nickels

Theses and Dissertations

Florists must analyze business practices to become environmentally savvy. This study investigated whether the introduction of sustainable waste practices into a college floral design course influenced the student’s perception of environmental health. Two groups of students enrolled in the basic floral design course at Mississippi State University completed a survey on environmental health at the start and end of the semester. One group sorted their lab wastes into compostable and landfill material. Results indicated students who separated their floral waste maintained the same level of environmental concern throughout the testing period while the environmental health scores of those who did …

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Deep Learning Based Soil Moisture Retrieval Using Gnss-R Observations From Cygnss, M M Nabi May 2024

Deep Learning Based Soil Moisture Retrieval Using Gnss-R Observations From Cygnss, M M Nabi

Theses and Dissertations

The National Aeronautics and Space Administration’s (NASA) Cyclone Global Navigation Satellite System (CYGNSS) mission has grown substantial attention within the land remote sensing community for estimating soil moisture (SM), wind speed, flood extent, and precipitation by using the Global Navigation Satellite System-Reflectometry (GNSS-R) technique. CYGNSS constellation generates important earth surface information called Delay-Doppler Maps (DDMs) from GNSS reflection measurements. Many previous findings considered only designed features from CYGNSS DDMs, such as the peak value of DDMs, whereas the whole DDMs are affected by SM, topography, inundation, and overlying vegetation. This dissertation explores a deep learning approach for estimating SM by …

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