Digital Commons Network^™

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 …

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 …

The Feminomenon Of Athletic Band Directing: A Multiple Case Study, Sydney Leigh Rush

Electronic Theses and Dissertations

Women represent a small fraction of leadership within two traditionally male-dominated fields: collegiate band directing and the marching arts (Foley, 2019; Gould, 2001; Rush, 2023). In 2015, approximately 21% of high school band directors were female and 79% were male (Yoder, 2015). Further, the CMS Directory of Music Faculties (2017 – 2018) revealed women held only 11.3 percent of all collegiate band director positions in the United States (Shaker, 2020). In 2023, women accounted for less than 6% of Directors of Athletic Bands for Football Bowl Subdivision (FBS)- Division 1, four-year universities (Rush, 2023). Although research has been done regarding …

An Integrated Data-Driven Framework For Coupling Upland Process Models And In-Stream Hydraulic Geometry Estimation, Ahmet Nazim Sahin

Electronic Theses and Dissertations

Large-scale watershed simulation platforms, such as the Agricultural Integrated Management System (AIMS), are essential for water resource management but are often limited by a critical lack of detailed in-stream channel data required for comprehensive river analysis. This study addresses this gap by developing and validating an integrated, data-driven framework that couples upland process models with in-stream hydraulic geometry estimation at a national scale. The research was executed through two complementary thrusts founded on the National Hydrography Dataset Plus (NHDPlus).

First, a geospatial workflow was developed to create NHDPlus-driven input files for the Annualized Agricultural Non-Point Source (AnnAGNPS) model—a tool for …

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 …

Beyond Guns Vs. Butter: Gendered Dynamics In Security Policy Preferences, Elaine Elizabeth Tagert

Electronic Theses and Dissertations

This dissertation challenges the foundational assumptions of the “guns versus butter” debate by recentering gender, insecurity, and state legitimacy in the analysis of public opinion. Drawing on over 300,000 individual responses across 80 countries, and original survey data from post-conflict Colombia, it demonstrates that the commonly held belief that women are more likely to prioritize welfare over security is both context-dependent and empirically unstable. Rather than reflecting innate preferences, gendered policy attitudes emerge from lived experiences of violence, inequality, and institutional trust.

The first empirical chapter reveals a striking reversal of conventional expectations in the Global South: in regions where …

Measurement Of Forces In Standing Wave Ultrasonic Fields, Milan Rai

Electronic Theses and Dissertations

The acoustic radiation force provides the physical mechanism for the non-contact levitation and manipulation of particles in ultrasonic standing wave fields. This thesis presents a study on the measurement, simulation, and validation of acoustic radiation forces acting on spherical particles levitated in air. The motivation for this work is to provide high-precision measurements of acoustic radiation forces in trapping systems, which are of particular interest in biomedical manipulation, materials science, and contactless assembly.

The study employs a three-part methodology: theoretical analysis, experimental observation, and numerical simulation. Theoretically, the acoustic radiation force was derived from Gor’kov’s potential (valid for ka « …

Effect Of Vibration Isolation During Transportation On Beef Sirloin Subprimal And Steak Quality, Kylie Nevada Krueger

Electronic Theses and Dissertations

The objective of this study was to determine the influence of vibration during transportation on beef sirloin water holding capacity, color, and tenderness. USDA Choice center-cut sirloin top butts (n = 45 cases) were collected at a commercial processing facility and randomly allocated to one of three treatments 1) regular pallet driven 241 km (Reg241), 2) regular pallet driven 644 km (Reg644), and 3) vibration isolation pallet driven 644 km (Iso644). All subprimals were transported at -2.2 °C (d0) and stored for 10 days to mimic industry practices for product aging. Following storage (d11), one subprimal per case was evaluated …

Strategies For Success: Developing The Hero Within To Increase Persistence Of Community College Students Returning From Academic Dismissal, Angela Cavazos

Electronic Theses and Dissertations

Students are enrolling in college at a higher rate than ever before, yet retention rates continue to be problematic for higher education institutions across the United States. Many students fail to persist beyond their first year and are often forced out due to academic difficulties. Students who return from academic dismissal are likely to be dismissed again. This quasi-experimental quantitative action research study aimed to evaluate the impact that a student success intervention course designed through an asset-based positive self-leadership framework and focused on the development of psychological capital constructs of hope, efficacy, resilience, and self-efficacy (HERO) had on the …

A Higher Calling: How Christian Student Affairs Administrators Integrate Their Faith While Working At Public Community Colleges, Danielle J. Ward

Electronic Theses and Dissertations

Abstract

The cornerstone of the student affairs field was the intentional focus on holistic student development, their mind and spirit. The problem addressed was that many student affairs professionals felt ill-equipped and uncomfortable discussing and expressing their personal faith at some institutions of higher education. As a result, some were hesitant about integrating faith at work, personally and professionally. The study sought to identify faith's role in Christian student affairs administrators who worked at public open-admission community colleges and the administrators’ perceptions of how their personal faith integration at work impacted their relationships with students and colleagues. The paradigm for …

The Lived Experiences Of African American Women In Predominantly White Higher Education Institutions In Texas And Their Journey To Advancement To Tenure, Wanda Yvonne Carter-Dyer

Electronic Theses and Dissertations

Abstract

African American women are underrepresented in predominantly White higher education institutions in Texas. Inconsistent treatment and policies have contributed to the disparate numbers of African American women in predominately White institutions. African American women are subjected to discrimination based on race, sex, and color. The problem investigated in this study was the barriers to African American tenure-seeking women in predominately White institutions. Barriers discussed in those interviews were discrimination, equity, inclusion, lack of support systems, organizational culture and relationships, and mentors. Six African American women in PWIs in Texas were interviewed to give a voice to the barriers experienced …

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-, …

Climate Variability Study For Arid Regions, Faisal Almutairi

Electronic Theses and Dissertations

Water is the primary source for all living species to thrive, and water scarcity has been a primary concern for biological species and plants in arid regions due to urban planning, population growth, poor water management, and overgrazing. The objective of this research was to study the climate variability in precipitation and temperature for an arid region. This research encompasses two distinct studies. The first study examined the impact of climate variability on precipitation in Phoenix. Precipitation data were acquired from NOAA from 1948 to 2023 and the study was broken down into three time scales: annually, seasonally, and monthly. …

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 …

Design And Optimization Of The Injection Molding Process Of Glass Fiber Reinforced Polymeric Car Fender Using Computational Simulation, Synthia Ferdouse

Electronic Theses and Dissertations

The increasing demand for lightweight and energy-efficient materials in the automotive industry has accelerated the adoption of fiber-reinforced polymer composites. This research presents the design and optimization of the injection molding process for glass fiber-reinforced polymer (GFRP) car fenders using computational simulation. The effects of various gate types and locations on key process parameters, including fiber orientation, volumetric shrinkage, shear rate, and fill time, were investigated using Finite Element Analysis (FEA), Autodesk Moldflow Insight 2024, and MATLAB-based Multi-Criteria Decision-Making (MCMD) techniques. Simulations were conducted across multiple configurations involving three, four, and five gates, with several variations in location. Among all, …

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 …

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 …

Modern Feminist Social Movements In Rural America: A Three- Part Study, Susan Kroger

Electronic Theses and Dissertations

Modern feminist social movement can be characterized by several distinctive features. The use of social media, the incorporation of intersectionality, and the injection of policy into modern social movements requires a broad approach to these movements that allows for examination from multiple angles. The proposed project allows for a nuanced and thorough look into an existing social movement in rural America as it unfolds and examines that movement through several lenses. Additionally, the project incorporates current social movement and feminist theory and notes the importance of examining these theoretical perspectives through an applied lens: in order for change to occur, …

Modeling Fluid Flow In Complex Biological Systems: Implications For Dense Tumor Microenvironments, Metastasis, And Bone Cancer, Mohammad Mehedi Hasan Akash

Electronic Theses and Dissertations

The transport of biofluids in physiological systems plays a critical role in understanding and optimizing therapeutic interventions for diseases such as cancer and respiratory infections. This dissertation focuses on developing and validating a comprehensive computational framework for studying multiphase transport in complex biological environments. The research emphasizes the use of Computational Fluid Dynamics (CFD) to simulate and analyze plasma perfusion in solid tumors, particle deposition in respiratory airways, and fluid transport in cancer metastasis and bone cancer systems. By addressing the challenges of modeling biological transport phenomena, this work provides valuable insights into therapeutic planning and experimental validation. The study …

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. …

One Rung At A Time: Climbing The Ladder Toward Aquatic Connectivity In Eastern South Dakota, Evan Spencer

Electronic Theses and Dissertations

Roads and streams are synonymous with their connection to movement, the acquisition of resources, and as pathways to new opportunities. However, the factors that define good roads and ecologically connected streams are rarely without conflict. Road infrastructure at stream-road crossings has the potential to fragment stream networks. Tube culverts, where streams pass under the road through metal pipes, are particularly concerning for stream connectivity. Undersized, aging, or inappropriately installed culverts can develop vertical drops at the outflow due to high velocities and stream bed scouring. The outlet drop can function as a barrier, preventing the upstream movement of fish. Due …

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 …