Digital Commons Network^™

On Developing A Behavioral Paradigm To Measure Intolerance Of Uncertainty: The Ambiguous Approach Index, Heather Clark

Electronic Theses and Dissertations

Research in clinical psychology over the last 40 years has solidified intolerance of uncertainty (IU) as an important transdiagnostic etiological and maintenance factor of affective psychopathology. Theoretically, IU is the dispositional cognitive tendency underlying anxiety related avoidance behaviors, such as worry, checking, and hypervigilance which lead to increased functional impairment. IU is associated with increased severity of numerous psychological concerns including anxiety, depression, and other commonly comorbid conditions. Further, higher levels of IU are found in clinical than non-clinical samples, emphasizing its role in mental health outcomes. However, behavioral paradigms used to differentiate between individuals of different diagnostic groups or …

Toward A Comprehensive Understanding Of The Interrelationships Between Valued Living, Veteran Acculturation, And Mental Health: First Steps Paving The Way For A Novel Valued Living Intervention For Veterans, With Challenges Encountered, Solutions Sought, And Lessons Learned, Victoria Elizabeth Mccutcheon

Electronic Theses and Dissertations

As part of a growing program of research, the present study builds upon previous findings that revealed meaning in life as a significant protective factor for Veteran psychological adaptation to civilian life (BPAS-MV). This next phase involves examining the utility of a novel EMA/EMI daily valued living intervention in fostering meaning through valued living (VLQ) in order to mitigate psychological distress and promote positive Veteran acculturation outcomes. Though the study is ongoing, small-scale pilot data from the pre-intervention baseline survey examining relationships among the variables targeted in the intervention are reported at this time and methodological challenges in the current …

Sentiment Driven Deep Learning Approach In Stock Market Prediction, Zhiqi Niu

Electronic Theses and Dissertations

With the rapid development of Artificial Intelligence (AI) technology, its application in the financial field has moved from theoretical exploration to practical deployment. Especially in stock market forecasting, machine learning (ML) and deep learning (DL) have significantly improved the performance of traditional statistical methods by analyzing massive historical data. However, the stock market is affected by multiple dynamic factors, including macroeconomic indicators (e.g., GDP, interest rates), company fundamentals (e.g., earnings reports, management changes), technical indicators (e.g., moving averages, trading volume), and unforeseen black swan events (e.g., political unrest, natural disasters). These nonlinear interactions of these factors makes stock price prediction …

Educating Students Suffering From Social Emotional Trauma, Terry Peeples

Electronic Theses and Dissertations

The purpose of this applied research was to prepare teachers with proper professional development so that teachers can be equipped with the skills and strategies to educate students who suffer from social-emotional trauma. Students are faced with many challenges outside of school. Sometimes these challenges come from the neighborhoods in which they live, their household and living conditions, the amount of violence that students have witnessed, and many more emotionally scarring situations. I have witnessed students miss out on the opportunity of student learning because of the emotional state they were in at that moment. Many times, students do not …

The History Of The Delta State University Music Department, Steven Gregory Hugley

Electronic Theses and Dissertations

This dissertation explores the history of Delta State University's music department from its inception in 1925 as Delta Teachers College to the closure of the department in May 2024, just shy of the University’s centennial. The study examines the ensembles offered, student and faculty participation, and degree programs throughout the years. It also considers the department's development and the factors leading to its closure, with insights into future plans. The research provides a comprehensive overview of the music department’s evolution and impact over nearly a century.

Investigating Changes In Gait, Impact Force And Fatigue While Running At Same Relative Intensity On A Lower Body Positive Pressure Treadmill, Julia Phillilps

Electronic Theses and Dissertations

Running is one of the most popular forms of physical activity in the world providing many health benefits but also leads to an increase in overuse and tendinopathy injuries. Lower body positive pressure treadmills (LBPPT) reduce body-weight (BW) impact, benefiting individuals with musculoskeletal conditions or undergoing rehabilitation. Previous research indicates LBPPT could be a potential training alternative or reintroducing exercise sooner in rehabilitation process. The purpose of this study was to examine average impact force and accumulated impact force over the course of a 5-km run at 60% of VO2peak at various % BW to examine if there is a …

"Keep Coming Back!": How Recovering Addicts Use Narcotics Anonymous For Social Rehabilitation., Taylor Leigh Ransom

Electronic Theses and Dissertations

This study examines the role of Narcotics Anonymous (NA) in shaping identity transformation and social reintegration among individuals in recovery. Using an ethnographic approach, including participant observation at NA meetings and semi-structured interviews with members, along with textual analysis of Narcotics Anonymous literature, this research explores how NA fosters social recovery by providing a structured yet flexible space for identity reconstruction. Through shared narratives, rituals, and peer support, members navigate the transition from an “addict” identity to one centered on personal accountability, community, and long-term abstinence from drugs.

By situating NA within broader sociological discussions of addiction recovery, social capital, …

High-Resolution And Time-Efficient Infiltration Rate Estimating Technique Using Geophysical Emi And Hydrogeological Modeling, Md Abdus Samad

Electronic Theses and Dissertations

Information on infiltration rates is crucial for developing climate-resilient infrastructure, optimizing irrigation in agricultural management, and tackling stormwater-related hazards. However, rapid urbanization and climate change are expected to exacerbate these risks. Therefore, proper assessment and understanding of infiltration capacity is essential for designing effective soil conservation strategies aimed at enhancing infiltration, reducing erosion, and supporting sustainable land and water management. Despite the importance, traditional methods such as single ring and double ring infiltrometer (DRI) test are limited by spatial resolution and time inefficiency, often fail to capture spatial heterogeneity across large areas.

To address these limitations, this research developed a …

Deep Learning Approaches For Predicting Strain Energy In Heterogeneous Materials, Junesh Gautam

Electronic Theses and Dissertations

Finite Element Analysis (FEA) faces computational challenges when analyzing nonlinear and heterogeneous materials. Utilizing the Mechanical MNIST dataset, comprising 60,000 simulated samples of 28x28 pixel domains under large deformation, the study evaluates classical regression methods (Linear Regression, Random Forest, Gradient Boosting) and advanced deep learning architectures (Convolutional Neural Networks (CNN) and Residual Networks (ResNet)). CNN models achieved superior performance, with a Mean Squared Error (MSE) of 4.21 and an R2 value of approximately 0.982, outperforming classical regression models and slightly surpassing ResNet architectures. These deep learning methods automatically learn spatial relationships from pixel-based representations, eliminating the need for manual feature …

Satellite And Uas Synergy For Large-Scale Crop Canopy Cover Mapping With Deep Learning, Muhammad Ali Irshad

Electronic Theses and Dissertations

No abstract provided.

Effects Of Essential Oils Alone Or In Combination With Monensin In An In Vitro Model Of Ruminal Acidosis, Jorge L. Bonilla Urbina

Electronic Theses and Dissertations

The objective of this study was to evaluate the effect of essential oils and/or monensin on the concentration of volatile fatty acids (VFA), ammonia, and pH in a ruminal acidosis in vitro model. Red Angus steers (n = 4; BW = 435 ± 9 kg) with ruminal and duodenal cannulas were allocated in a 4 × 4 Latin square design. Treatments were 1) Fed no essential oils (RB) or monensin sodium (MON:CON); 2) Fed RB at a rate of 14 g daily with no Mon (RB+); 3) Fed no RB and fed Mon at 400 mg daily (MON+); 4) Fed …

Improving Reduced Tillage Vegetable Systems For The Northern Great Plains: How Does Early Season Soil Tarping (Solarization And Occultation) Reduce Weeds, Affect Soil Health, And Protect Yield?, Hannah Voye

Electronic Theses and Dissertations

Soil tarping (solarization and occultation) is a no-till weed management practice gaining popularity in the United States for small scale vegetable growers. While many studies have been conducted using variations of this tool in the Northeast United States, minimal research has been done in the windier, sunnier, Midwest climate. Our research explored the effectiveness of early spring solarization and occultation to manage weeds and produce viable onion yield in Eastern South Dakota. Occultation tarps placed in early spring included double sided black and white silage tarps with tarps placed black side up or white side up, each placed 6-, 4-, …

Prospective Use Of Detection Dogs As A Screening Tool For Mycoplasma Ovipneumoniae In Bighorn Sheep (Ovis Canadensis), Michele C. Lovara

Electronic Theses and Dissertations

Mycoplasma ovipneumoniae is a bacterium that can spill over from domestic sheep (Ovis aries) to bighorn sheep (Ovis canadensis), with effects in bighorn sheep ranging from low to no lamb recruitment to whole-herd all-age die-offs from resulting pneumonia. Fast and reliable pathogen or disease detection is essential for managing outbreaks in bighorn sheep and emergences in affected populations. Detection dogs are increasingly being enlisted to close gaps and further complement various disease, pathogen and virus research and response efforts. This thesis explores the use of conservation detection dogs as a potential tool for M. ovipneumoniae surveillance in bighorn sheep through …

Development Of Food Preservative Hydrogel Using Bioactive Compounds Extracted From Canola Meal, Kayla Christopherson

Electronic Theses and Dissertations

With an ever-growing population comes the need for a greater food supply. Yet land and other agricultural resources put a limit on the availability of food production. As farmers strive to optimize higher produce yields, society must turn to greener, more sustainable food preservation techniques to reduce food spoilage. The inclusion of extracted bioactive compounds found in canola meal into a food preservative hydrogel is such a solution for food spoilage reduction. In this thesis, extraction parameters of glucosinolates were examined along with their inhibition of E. coli DH5αZ1 when incorporated into 2 developed hydrogels: gelatin A Schiff-base and agar-agar. …

Remote Sensing - Based Mapping And Analysis Of Winter Cover Crop Adoption For Sustainable Agriculture, Minnehaha County, Belinda Buechler

Electronic Theses and Dissertations

Winter cover crops planted by farmers such as cereal rye, crimson clover, radishes, hairy vetch, and winter wheat are used to conserve and protect the soil during winter. These crops offer numerous benefits such as improving soil health, reducing erosion, fixing nitrogen, increasing carbon sequestration, and weed suppression. Over time, winter cover cropping has been recognized as a sustainable agricultural practice and has gained attention from Federal and State conservation programs, farmers, and non-governmental organizations. Due to their vital benefits, agencies such as the United States Department of Agriculture (USDA), Natural Resources Conversation Services (NRCS) have partnered with cost-share programs …

Understanding Relationships Among Fish And Environmental Conditions To Guide Adaptive Fisheries Management, Madalyn K. Siller

Electronic Theses and Dissertations

No abstract provided.

Phytogenic Feed Additives Pre- And Post-Calving And Effects Of Substituting Ddgs With Soybean Meal On Protein Metabolism In Beef Cattle, Grace H. Jardon

Electronic Theses and Dissertations

The objective of these studies was to evaluate nutritional strategies to improve beef cattle productivity through targeted supplementation and protein source manipulation. The first study investigated the effects of a phytogenic supplement (PHYT; a blend of turmeric, capsicum, and black pepper oleoresin) on colostrum yield and composition, calf passive immunity, and cow–calf performance. Twenty-three Angus-based cows were assigned to either a control group or received 250 or 500 mg/head/day of PHYT from 30 days pre-calving to 60 days post-calving. Supplementation with PHYT linearly increased colostrum fat and calf serum IgA concentrations. Milk fat, calf serum IgG, and colostrum IgM tended …

Effect Of Six-Day Germination On Chemical Composition, Functional, And Nutritional Properties Of Pea Varieties, Hojjat Abdollahikhamene

Electronic Theses and Dissertations

Pulses, particularly peas, have long been a crucial source of protein in vegetarian and cost-effective diets worldwide. They have gained popularity in Western diets as more people turn to plant-based proteins as alternatives to animal products. Peas are known for their high protein content; however, their use in food products has been limited due to factors like poor solubility and digestibility. Germination improves the nutritional profile of peas by enhancing protein content and digestibility. The objective of this study was to determine the effects of six days of germination on the nutritional composition and functional properties of different varieties of …

Biopolymer-Induced Soil Ductility Enhancement: Mitigating The Effects Of Desiccation Cracks, Rabindra Prasad Bohara

Electronic Theses and Dissertations

This study addresses the formidable challenges of expansive clayey soils, notorious for their swelling-shrinkage characteristics, which often lead to ground instability and structural damage. While effective in mitigating soil swell-shrink potential and enhancing strength, traditional calcium-based stabilizers can react with higher sulfate content to form ettringite, causing volumetric changes and infrastructure distress. To assess the impact of stabilizing sulfate-rich soils and determining the various engineering properties, samples of both control and stabilized soils were prepared using lime, biopolymer (guar gum), and lime with guar gum at concentrations of 2% and 4% lime only, 0.5%, 1% and 1.5% guar gum only, …

Evaluation Of Strip-Tillage And Banded Phosphorus And Potassium Fertilizer For Corn Production In Eastern South Dakota, Charles N. Tesch

Electronic Theses and Dissertations

In South Dakota, the adoption of no-till and other conservation tillage practices has grown in recent years. However, conventional tillage is still a common practice in the eastern third of the state, negatively affecting soil health and the environment. Strip-tillage has gained interest in this region as a way to transition to conservation tillage while retaining some benefits of conventional tillage. Strip-tillage also provides the ability to subsurface band nutrients, particularly phosphorus (P) and potassium (K) fertilizers within the tillage strip, potentially improving nutrient accessibility and recovery while reducing environmental risks. This study aimed to investigate (i) the effects of …

Investigating The Ruminal Metagenome Of Grass And Forage-Fed Bison To Uncover Metabolic Activities That Impact The Efficiency Of Plant Fiber Utilization, Anlly Fresno Rueda

Electronic Theses and Dissertations

This dissertation investigates the ruminal microbiome of American plains bison (Bison bison) to uncover the metabolic activities that enable efficient utilization of plant fiber, with a particular focus on bacterial composition and functional capabilities in response to forage quality. Using both 16S rRNA gene sequencing and metagenomic approaches, this research provides a comprehensive view of microbial diversity and metabolic potential in the rumen of bison, offering insights into their ecological resilience and efficiency in nutrient extraction. Chapter 2 focuses on the metabolic potential of bacterial communities in the rumen of bison fed a grass-based diet. Using high-throughput sequencing and metagenomic …

Identification Of Gut Bacterial Symbionts From Atlantic Salmon That Are Involved In Metabolizing Feed Ingredients Derived From Soybean Meal, Emily Fowler

Electronic Theses and Dissertations

In the aquaculture industry, plant-based protein sources have emerged as an economically and environmentally sustainable replacement for traditional animal protein sources. Yet, due to reduced digestibility, the presence of anti-nutritional factors, as well as an increased risk of inflammation of the digestive system, the inclusion of plant-based protein ingredients must be limited, especially in the diets of carnivorous fishes. To gain further insight on how to adapt the fish digestive tract to more effectively utilize or tolerate plant-based protein ingredients, slurry from cultured Atlantic Salmon (Salmo salar) was used as a proxy in an in vitro model system to identify …

Development Of A Collagen-Based Bioink For 3d Printing Biomimetic Tendon-To-Bone Tissue Grafts For Rotator Cuff Repair, Samiul Nibir

Electronic Theses and Dissertations

This study presents the development of a collagen-based bioink for 3D printing tendon-to-bone tissue grafts, specifically designed for rotator cuff repair applications. Three different bioink formulations were developed: (i) 5.1% (w/v) collagen I, (ii) 5% (w/v) collagen I and collagen II, and (iii) 4.5% (w/v) collagen I combined with β-TCP. The bioink containing collagen I and collagen II was prepared by mixing the two components in a 1:1 ratio, while the collagen I plus β-TCP formulation was made by incorporating 20 wt % β-TCP into the collagen I solution. These formulations were developed to replicate the natural tendon-to-bone complex interface …

White Coats And Scrubs: Bridging The Gaps In Accommodation, Tristan Stauffacher

Electronic Theses and Dissertations

Effective communication between nurses and physicians is critical for patient safety, yet these interactions often occur within hierarchical structures that can hinder open dialogue and collaboration. This study explores nurse-physician communication through the lens of Communication Accommodation Theory (CAT), specifically focusing on how nurses accommodate their communication using the framework’s strategies. Drawing on qualitative data from semi-structured interviews with registered nurses, this study identifies key themes including convergence, organizational silence, and maintenance as strategies that nurses engage in. The findings of this study reveal that accommodation choices are not solely motivated by intrinsic goals but can be motivated by external …

Shifting Waters: A 41-Year Time-Series Analysis Of Surface Water Change In The Prairie Pothole Region, Madison Dejarlais

Electronic Theses and Dissertations

The Prairie Pothole Region (PRR) is a landscape defined by a dynamic surface water system, with wetlands, lakes, and rivers playing critical roles in supporting biodiversity, regulating floods, and maintaining hydrological balance. This study conducts a time-series analysis of surface water change in the PPR from 1984 to 2024, using remote sensing tools including Google Earth Engine, ArcGIS Pro, and ENVI. 41 annual surface water presence rasters were compiled into a cumulative dataset, allowing for both year-to-year comparisons and broader trend analysis. Results indicate that the presence of surface water in the PPR has not followed a simple linear trend. …

Synchronization Protocols Utilizing Progesterone Implants Associated With Estrus Expression, Vaginal Microbiome, And Immune Response In Beef Cattle, Riley James Puck

Electronic Theses and Dissertations

This thesis aims to provide a deep understanding of presynchronization strategies and the varying factors affecting their efficacy. Beginning with a literature review of the estrous cycle and the endocrinology driving it. Building on this foundation, the physiological basis for estrous synchronization is described, followed by the advancement of pre-synchronization protocols designed to increase estrus and conception. Further, we will focus on the influence of estrus expression on insemination time and conception rates. Finally, how the immune system interacts with the conception process. In addition, the review goes beyond exogenous endocrine manipulation and dives into the emerging role of the …

Determining The Susceptibility Status Of Red Sunflower Seed Weevil, Smicronyx Fulvus (Coleoptera: Curculionidae) To Pyrethroid Insecticides, Aaron Lee Hargens

Electronic Theses and Dissertations

Although sunflowers are native to North America, the early breeding efforts to improve sunflowers occurred outside of the continent. These hybrids were reintroduced to North America around 1875. In the early 1900’s, efforts to increase oil content were achieved by selective breeding of the reintroduced hybrids. Although this resulted in the development of improved sunflowers, many of the traits that conferred resistance to native insect pests were lost. One insect pest, the red sunflower seed weevil was noted as having caused sunflower production to rapidly decline and eventually end in Illinois and Missouri. Unfortunately, red sunflower seed weevils are still …

Generative Ai In The Workplace: Adoption Patterns, Innovation Attributes, And Equity Implications At Bhssc, Andrew Ley

Electronic Theses and Dissertations

This case study explores generative artificial intelligence (GenAI) adoption patterns, innovation attributes, and equity implications within a diverse educational cooperative in western South Dakota. A mixed methods approach was employed to analyze adoption trends, perceived productivity differentials, and the significance of key innovation characteristics to 40 employees representing a range of divisions, roles, and levels of digital competence. Employees with lower self-reported digital competence and higher average age reported disproportionately higher perceived productivity gains from GenAI tools. This may suggest GenAI may level the playing field for aging individuals who have previously felt marginalized by rapid technological change in the …

Fungal Biotransformation Of Thin Stillage And Soybean Hulls And Bacterial Production Of Lysine In Ethanol Industry Co-Products, Bhawana Khadka

Electronic Theses and Dissertations

Thin stillage (TS) and whole stillage (WS) are major by-products of the corn ethanol industry. These by-products are generated in large quantities and contain nutrients that remain after yeast fermentation. Current industrial utilization of these by-products involves a series of downstream processing steps such as centrifugation and evaporation, which are energy-intensive and often result in nutrient losses. Traditionally, these by-products are dried to produce distillers dried grains with solubles. In this study, microbial fermentation was investigated as an alternative bioprocessing tool to expand the utilization of these by-products. The first objective was to explore the upcycling of TS, both alone …

Evaluation Of Soil Microbiome And Edaphic Factors In Response To Nitrogen Fertilizer Application In Western South Dakota Croplands, Riya Jain

Electronic Theses and Dissertations

No abstract provided.