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Feasibility Of Earthships As Sustainable Homes In Brookings County, South Dakota, Whitney Sunkwah Yeboah
Feasibility Of Earthships As Sustainable Homes In Brookings County, South Dakota, Whitney Sunkwah Yeboah
Electronic Theses and Dissertations
Addressing the issue of housing deficit while providing affordable and sustainable homes is a significant problem in the United States today. This has prompted architects to design homes with less adverse environmental impacts despite their affordability, hence the birth of sustainable housing. Earthships are sustainable homes built from recycled materials, utilize solar or wind energy, and function as self-sufficient units. The study's main aim is to assess residents' perceptions of earthships and their willingness to adopt earthships in Brookings County, South Dakota. The research employs online surveys to garner data from residents, and data are analyzed using mixed methods. Results …
Firm-Level Political Risk And Corporate R&D Investment, Emmanuel Boah
Firm-Level Political Risk And Corporate R&D Investment, Emmanuel Boah
Electronic Theses and Dissertations
I examine how firms make R&D investment decisions during periods of political uncertainty. To minimize stickiness and overly generalized assumptions, I employ quarterly data. I find that firms invest more in R&D when facing high levels of political risk. The results suggest that this positive relationship between political risk and R&D investment is more pronounced for competitive and politically sensitive firms. Additionally, the positive association is evident among firms with higher growth opportunities and more liquid assets. The results are robust to the test for correlation, addressing endogeneity, and alternative proxies adopted for the variables of interest. Overall, the findings …
Assessing How Long-Term Conservation Agricultural Practices Impact Soil Properties And Soil, Water, And Nutrient Dynamics Through Soil Profile, Ajoy Kumar Saha
Assessing How Long-Term Conservation Agricultural Practices Impact Soil Properties And Soil, Water, And Nutrient Dynamics Through Soil Profile, Ajoy Kumar Saha
Electronic Theses and Dissertations
No abstract provided.
Performance And Durability Assessment Of Concrete Bridge Deck Sealants, Bipin Adhikari
Performance And Durability Assessment Of Concrete Bridge Deck Sealants, Bipin Adhikari
Electronic Theses and Dissertations
No abstract provided.
Electronic Waste As Synthetic Aggregate For Portland Cement Concrete, Md Shafaul Islam
Electronic Waste As Synthetic Aggregate For Portland Cement Concrete, Md Shafaul Islam
Electronic Theses and Dissertations
Lightweight concrete has grown in popularity in the building industry in recent years. Due to its environmental and economic benefits, the construction sector favors using lightweight concrete in applications allowed by the technical specifications. On the other hand, electronics waste (e-waste) is the world’s most rapidly growing waste problem. Given the scale and the volume of global concrete construction, incorporating e-waste as a lightweight concrete construction material can potentially reduce sending electronic waste to landfills, which is an environmental benefit. Additionally, it will help with saving the consumption of virgin aggregates. This study was undertaken to determine the feasibility of …
Expanding The Use Of High-Performance Liquid Chromatography For Varietal Identification Or Verification Of Selected Cereal Crops, Johnna Jorgensen
Expanding The Use Of High-Performance Liquid Chromatography For Varietal Identification Or Verification Of Selected Cereal Crops, Johnna Jorgensen
Electronic Theses and Dissertations
High-performance liquid chromatography (HPLC) is a form of analytical chemistry where adsorption is a key factor in which the purpose is to separate, identify and quantify each component in a mixture. It is the optimal separation technique of chemical and biological compounds that are non-volatile including proteins and natural products (i.e., plant extracts). As each sample component interacts differently with the absorbent material within the column, the flow rates change leading to the separation of peaks, which are plotted via computer software. Most commonly HPLC analysis has been used for chemical manufacturing and pharmaceutical purposes. When using HPLC for crop …
Genomics-Assisted Approaches To Improve Grain Yield And End-Use Quality In Hard Winter Wheat (Triticum Aestivum L.), Harsimardeep Singh Gill
Genomics-Assisted Approaches To Improve Grain Yield And End-Use Quality In Hard Winter Wheat (Triticum Aestivum L.), Harsimardeep Singh Gill
Electronic Theses and Dissertations
Global wheat production needs to be increased by 60% to meet the future demand of feeding nine billion people by 2050. Simultaneously, it is important to improve the enduse quality to meet the requirements of producers, grain markets, processors, and consumers. Thus, the development of more productive wheat varieties with better enduse quality remains the primary focus for all wheat breeding programs. However, direct phenotypic selection for improving grain yield and end-use quality is difficult as it is highly influenced by environmental factors. This dissertation focuses on harnessing advancements in genomics applications, including genome-wide association studies (GWAS), for the genetic …
Probing Signal-Based Data-Driven Modeling Of Power Electronics Smart Converter Dynamics Using Power Hardware-In-The-Loop, Nischal Guruwacharya
Probing Signal-Based Data-Driven Modeling Of Power Electronics Smart Converter Dynamics Using Power Hardware-In-The-Loop, Nischal Guruwacharya
Electronic Theses and Dissertations
The main objective of this dissertation is to develop a generalized simulation and modeling framework for extracting dynamics of power electronic converters (PECs) with grid support functions (GSFs) and validate model accuracy through experimental comparison with physical measurements. The dynamic models obtained from this modeling framework aim to facilitate accurate dynamic analysis of a highly integrated power system comprising inverter-based resources (IBRs), specifically for stability assessment. These dynamic models helped in reducing simulation time and computational complexity, thereby enhancing efficiency. Moreover, it provides valuable insights for utilities and grid operators involved in effective system planning, operation, and dispatch. The dynamics …
Application Of Crispr/Cas9 Whole Genome Screens To Advance Macrophage Biology, Kevin Wanniarachchi
Application Of Crispr/Cas9 Whole Genome Screens To Advance Macrophage Biology, Kevin Wanniarachchi
Electronic Theses and Dissertations
Advances in CRISPR/Cas9 gene editing technologies present opportunities to better understand the contribution of individual genes to complex eukaryotic cellular processes. I have applied CRISPR whole genome screen technologies to inform further mechanistic understanding of macrophage fitness and neutral lipid metabolism. This work is important because macrophages play critical roles in immune function and are implicated as causative agents in disease states. Chapter One of this dissertation provides insights into how CRISPR genome screening technologies have improved biological discovery and key findings from their application and discusses how this technology can be implemented to advance the discovery of novel macrophage …
Strategies To Optimize Confinement Fed Beef Cattle In The Northern Plains, Erin R. Gubbels
Strategies To Optimize Confinement Fed Beef Cattle In The Northern Plains, Erin R. Gubbels
Electronic Theses and Dissertations
The goal of this dissertation was to understand the strategies needed to optimize performance of confinement fed beef cattle in the Northern Plains. This was accomplished through three objectives: 1) evaluate health, growth performance, and antibody titers in previously vaccinated, newly weaned calves administered a respiratory and clostridia vaccine upon arrival compared to no vaccination; 2) determine the influence of manger space restriction on program-fed feedlot heifers during the growing phase; and 3) to evaluate growth performance and carcass traits following transit of feedlot heifers sourced and finished in different regions of the United States. For objective 1, single-sourced, newly …
Walleye Feeding, Movements, And Energetics Reveal The Importance Of Connected Wetlands In Glacial Lakes, Logan M. Cutler
Walleye Feeding, Movements, And Energetics Reveal The Importance Of Connected Wetlands In Glacial Lakes, Logan M. Cutler
Electronic Theses and Dissertations
Fish require a variety of resources including prey, thermal refugia, and different physical habitat characteristics to grow and reproduce. All necessary resources are rarely provided by a single habitat, resulting in tradeoffs between occupying different habitats; therefore, the ability to move among heterogenous habitats is critical. These tradeoffs may occur in lakes with connected wetlands where the main lake habitats tend to be more thermally stable, but wetlands often provide more diverse and abundant prey. For my second chapter, I compared prey diversity and abundance as well as Walleye (Sander vitreus) diets and condition in a large glacial lake (Lake …
Enhancing Nitrogen Use Efficiency Through Ai-Powered Image Analysis And Innovative N-Rich Spot Method, Bobby Azad
Enhancing Nitrogen Use Efficiency Through Ai-Powered Image Analysis And Innovative N-Rich Spot Method, Bobby Azad
Electronic Theses and Dissertations
This study conducted in 2023 aimed to enhance nitrogen use efficiency (NUE) in wheat and corn grown in South Dakota. Based on dynamic weather conditions and other factor interactions, conventional nitrogen (N) recommendations need to be improved. Soil properties information, including electrical conductivity, was used to create management zones. In each zone, three N-rich spots were established as biosensors. Drones and satellites collected imagery data, and an AI-driven approach assessed the crop response to applied N. A dynamic N application approach, integrating aerial data with historical records, was developed and evaluated. Our methodology, at a 95% confidence level, resulted in …
Pedagogical Content Knowledge (Pck) Change And Professional Development For Educators: An Assessment Of A Master’S In Chemistry Program For High School Science Teachers, Mary Charlotte Bautista
Pedagogical Content Knowledge (Pck) Change And Professional Development For Educators: An Assessment Of A Master’S In Chemistry Program For High School Science Teachers, Mary Charlotte Bautista
Electronic Theses and Dissertations
The M.S. Chemistry – Chemical Education Specialization program at South Dakota State University provides in-depth general chemistry coursework to in-service high school science teachers in a virtual format. The goal of the program is for the teachers enrolled to become more effective teachers while gaining content knowledge in chemistry; in essence, to increase their pedagogical content knowledge (PCK). The aim of this study is to follow participants through their experience in this program in order to understand how the program’s requirements enhance its participants’ teaching and learning. A narrative framework follows one participant through their two-year experience in the program, …
An Analysis Of The Effect Of Temperature On Asphalt Paving In South Dakota, S M Rahat Rashedi
An Analysis Of The Effect Of Temperature On Asphalt Paving In South Dakota, S M Rahat Rashedi
Electronic Theses and Dissertations
Temperature is an important parameter to consider for asphalt paving since this work is generally susceptible to weather due to outdoor construction. The South Dakota Department of Transportation (SDDOT) developed working day weather charts in 1998 to address the expected adverse weather days. This thesis investigated the effect of temperature on adverse weather days for asphalt paving and compared them to the value reported in the 1998 SDDOT study. Moreover, the thesis also examined how closely the maximum temperature data from project sites' weekly progress reports (WPR) matched the data from the closest weather stations. When the maximum temperature (TMAX) …
Teachers’ Perceptions About The Transition To English (T2e) Program In Bridging The Literacy Gap At The Elementary Level, Hilda Sarfo
Electronic Theses and Dissertations
This study delves into the perceptions of Ghanaian teachers regarding the effectiveness of the bilingual literacy program – Transition to English (T2E) – in addressing the literacy gap at the elementary level. Recognizing the significance of second language acquisition for early-grade learners in multilingual communities, the research focuses on investigating the expectations and sustainability of the program. The study involved in-depth interviews with 11 Ghanaian teachers from three public basic schools who have experience with the T2E and one private school who has no experience. The findings of the study confirmed the pivotal role of the T2E in supporting young …
Exploring Disparities In Prenatal Smoking And The Role Of Adverse Childhood Experiences, Patricia Da Rosa
Exploring Disparities In Prenatal Smoking And The Role Of Adverse Childhood Experiences, Patricia Da Rosa
Electronic Theses and Dissertations
Cigarette smoking is the most common cause of premature death, killing half of its users. During pregnancy, smoking continues to be the leading cause of premature death for both mothers and newborns. Research has consistently demonstrated smoking is not randomly distributed across populations; it is, instead, socially patterned. Women from lower socioeconomic backgrounds, those experiencing mental health issues, and rural area residents are disproportionately affected. The life course framework emphasizes the impact of exposures in early life on shaping health inequities. Eliminating health inequities, including risky behaviors such as smoking, requires an understanding of the pathways that generate these inequities. …
Investigating Dormancy And Germination Characteristics To Promote Restoration Success In The Northern Great Plains, Gregory A. Cooper
Investigating Dormancy And Germination Characteristics To Promote Restoration Success In The Northern Great Plains, Gregory A. Cooper
Electronic Theses and Dissertations
Failures in seed-based restoration can be partially attributed to a lack of knowledge on seed dormancy. Dormancy is beneficial for plant establishment in unpredictable environmental conditions, but a lack of uniform germination can hinder restoration efforts. The purpose of this research was to gain a better understanding of dormancy displayed by select forbs of the northern Great Plains. The first data chapter attempted to identify and break dormancy class. Seeds were treated with scarification, smoke, and fertilizer pretreatments in an attempt to break seed dormancy. Seeds were also placed in spring and summer temperatures to identify how seasonal phenology influenced …
Effect Of Lighter (273 Kg) And Heavier (356 Kg) Initial Weight On Growth Performance Of Single-Source, Pre-Conditioned Beef Steers Fed A Single Growing-Finishing Diet, Thomas C. Norman
Electronic Theses and Dissertations
The objective of the study was to determine the influence that initial BW has on growth performance responses, efficiency of dietary net energy (NE) utilization, and carcass traits in feedlot steers. Light- and heavy-weight Charolais×Red Angus steers (n = 70) selected from a larger single-source group were used in a 209-d growing-finishing feedlot experiment at the Ruminant Nutrition Center, in Brookings, SD. On d-0 and d-1 weight and hip height (HH) measurements were collected for allotment purposes; the initial experimental weight was the average between d 0 and d 1 BW. Steers were assigned to two groups based on initial …
Cytotoxicity Profiling And Apoptotic Potential Of Carboxylic Acids-Based Deep Eutectic Solvents On Mammalian Cell Lines, Mavis Korankye
Cytotoxicity Profiling And Apoptotic Potential Of Carboxylic Acids-Based Deep Eutectic Solvents On Mammalian Cell Lines, Mavis Korankye
Electronic Theses and Dissertations
In the past few years, there has been a notable surge in demand for high-purity medicines due to the prevalence of chronic diseases such as cancer, hypertension, diabetes, cardiovascular diseases, and neurological disorders. Considerable efforts have been dedicated to discovering new solvents that are environmentally friendly and cost-effective that are well-suited for industrial applications. Deep eutectic solvents have gained recognition as a highly promising alternative to organic solvents and ionic liquids due to their easily sourced raw materials, simple and cheap preparation methods, high tunability, low volatility, low toxicity, and biodegradability. The industrial utilization of deep eutectic solvents (DESs) is …
Nio Nanoparticles-Decorated Carbon Fiber Cloth As Lithiophilic Host Material For Stable Lithium Metal Batteries, Sarwar Ahmed
Nio Nanoparticles-Decorated Carbon Fiber Cloth As Lithiophilic Host Material For Stable Lithium Metal Batteries, Sarwar Ahmed
Electronic Theses and Dissertations
Lithium metal is considered the Holy Grail for the anode for next-generation rechargeable batteries. Lithium metal has the highest theoretical capacity and lowest anode potential with respect to the standard hydrogen electrode (SHE). However, its commercialization is hindered by uncontrolled dendrite growth, weak solid electrolyte interphase (SEI), and low coulombic efficiency. The dendrite formation leads to a short circuit between the anode and cathode, which creates a dangerous safety issue. Several host materials and artificial SEI layers have been developed to suppress these issues. However, the effectiveness of these solutions is limited. More research is needed to develop more efficient …
Diet And Management Strategies To Mitigate Decreased Feed Intake Associated With Terminal Implant Administration In Finishing Beef Steers, Alexandria M. Kelly
Diet And Management Strategies To Mitigate Decreased Feed Intake Associated With Terminal Implant Administration In Finishing Beef Steers, Alexandria M. Kelly
Electronic Theses and Dissertations
Terminal implant administration in beef steers often leads to decreased feed intake, leading to less growth. Our objective was to identify diet and management changes that can mitigate this decrease in feed intake. Single-sourced Angus x Simmental steers (n=27, initial BW= 385.1 ± 30.8 kg) were utilized in a completely randomized trial to assess the effects of animal movement and increased forage inclusion on rumination and feed intake after re-implanting. Steers were initially implanted with Synovex Choice (100 mg trenbolone acetate and 14 mg estradiol benzoate; Zoetis, Parsippany, NJ), then reimplanted 88 d later with Synovex Plus (200 mg trenbolone …
Control Of Persistent Environmental Listeria Monocytogenes Using Phenotypic And Genomic Approaches, Bhaswati Chowdhury
Control Of Persistent Environmental Listeria Monocytogenes Using Phenotypic And Genomic Approaches, Bhaswati Chowdhury
Electronic Theses and Dissertations
No abstract provided.
Indigenous Toxin Affects Cell Viability, While An Artificial Proteolytic Queueing Causes The Upregulation Of Specific Genes, Mohammed Salahuddin
Indigenous Toxin Affects Cell Viability, While An Artificial Proteolytic Queueing Causes The Upregulation Of Specific Genes, Mohammed Salahuddin
Electronic Theses and Dissertations
Studying bacterial physiology is crucial to understand the fundamental mechanisms that govern bacterial growth, survival, and adaptation. This thesis combines two chapters investigating bacterial physiology by studying important cellular processes like bacterial toxin-antitoxin systems and proteolytic pathways. The first chapter involves studying bacterial toxin-antitoxin systems to understand the regulation and function of hypothetical toxin-antitoxin (TA) systems of bacteria and the effects of these TA systems on bacterial growth and survival. The emergence of these genetic modules in bacterial research and the unrevealing of some of their important roles in cell physiology in recent years has drawn much attention in scientific …
Evaluating Precision Supplementation Technology And Mathematical Nutrition Models For The Development Of Heifers Grazing Dormant Rangeland In Western South Dakota, Anna Katherine Dagel
Evaluating Precision Supplementation Technology And Mathematical Nutrition Models For The Development Of Heifers Grazing Dormant Rangeland In Western South Dakota, Anna Katherine Dagel
Electronic Theses and Dissertations
The Great Plains supports about 40-50% of beef cattle production in the United States. Consequently, the beef cow-calf sector provides a large economic impact for states located within the Northern Great Plains (South Dakota Department of Agriculture, 2021). Producing profitable rangeland beef cattle through an economically efficient cowcalf operation presents several challenges. These challenges include providing adequate nutrition to meet the needs of growing heifers on rangelands, which requires additional labor and feed/supplement to achieve desired rates of gain and reach a target body weight, resulting in reproductive success. Implementation of precision livestock technology (PLT) and the use of precision …
Evaluation Of Welded And Polished Stainless-Steel Surfaces In Supporting Sporeformer Biofilms In Dairy Plants, Taghreed Almalki
Evaluation Of Welded And Polished Stainless-Steel Surfaces In Supporting Sporeformer Biofilms In Dairy Plants, Taghreed Almalki
Electronic Theses and Dissertations
No abstract provided.
Nitrogen Plasma Treatment On Triple Cation Mixed Halide Perovskite Surface For High Efficiency Perovskite Solar Cells, Buddhi Sagar Lamsal
Nitrogen Plasma Treatment On Triple Cation Mixed Halide Perovskite Surface For High Efficiency Perovskite Solar Cells, Buddhi Sagar Lamsal
Electronic Theses and Dissertations
No abstract provided.
Impact Of Covid-19 Relief Packages On U.S. Household Food Security And Food Expenditure, Bridget Yeboah Bafowaa
Impact Of Covid-19 Relief Packages On U.S. Household Food Security And Food Expenditure, Bridget Yeboah Bafowaa
Electronic Theses and Dissertations
The COVID-19 pandemic led to changes in consumer shopping habits, including food expenditures. The pandemic induced changes in food expenditure patterns, food accessibility, and declining household income contributed to increased food insecurity during the pandemic. The objective of this study is to examine the impact of COVID-19- related relief packages on food security and food expenditures. The effect of Economic Impact Payments, P-EBT, SNAP, and free food will be considered. Using data from the Household Pulse Survey (HPS), a total sample of 1,899,929 households were analyzed in this study. The HPS is a nationally representative survey structured to produce data …
Automatic Data-Driven Partitioned Modeling Of Power System Dynamics With Smart Power Electronic Inverters, Sunil Subedi
Automatic Data-Driven Partitioned Modeling Of Power System Dynamics With Smart Power Electronic Inverters, Sunil Subedi
Electronic Theses and Dissertations
The primary aim of this dissertation is to provide an efficient statistical modeling and simulation technique for extracting the dynamics of converter-dominated power systems (CDPS) with the device level details using the least amount of computation time while maintaining a reasonable level of accuracy. These test cases are intended for use by power system researchers that need to develop test cases that can perform accurate dynamic analysis on a high integration of inverter-based resources (IBRs) for stability analysis while speeding up simulation time and reducing computational complexity. Additionally, utilities/grid operators must properly plan, operate, and dispatch. Case studies that can …
Rumen-Protected Methionine Supplementation Improves Lactation, Oxidative Status, And Immune Response During A Subclinical Mastitis Challenge In Lactating Dairy Cows., Anita Paz Lopez
Electronic Theses and Dissertations
Mastitis is a significant problem in the dairy industry, posing numerous challenges for dairy farmers worldwide. Mastitis refers to the inflammation of the mammary gland, primarily caused by bacterial infections. This condition affects the health and well-being of dairy cows and has severe economic implications for farmers and overall dairy production. The prevalence of mastitis substantially threatens milk quality, productivity, and profitability, making it a top concern in the dairy industry. Preventing mastitis in cows is crucial for maintaining the herd's health and ensuring highquality milk production. Nutritional strategies have recently gained greater attention due to a direct impact on …
Simulating The Impact Of Emissions Control On Economic Productivity Using Particle Systems And Puff Dispersion Model, Najam Khan
Electronic Theses and Dissertations
A simulation platform is developed for quantifying the change in productivity of an economy under passive and active emission control mechanisms. The program uses object-oriented programming to code a collection of objects resembling typical stakeholders in an economy. These objects include firms, markets, transportation hubs, and boids which are distributed over a 2D surface. Firms are connected using a modified Prim’s Minimum spanning tree algorithm, followed by implementation of an all-pair shortest path Floyd Warshall algorithm for navigation purposes. Firms use a non-linear production function for transformation of land, labor, and capital inputs to finished product. A GA-Vehicle Routing Problem …