Digital Commons Network^™

Energy-Absorbing Helmet For Safer Football, Aidan Laudeman

Honors Theses

Football-related injuries are a common occurrence and are often detrimental to the player’s health. Force impacts frequently occur at the front, back, and sides of a player’s helmet, resulting in head injuries like concussions. The goal of this project is to reduce recurrent head injuries by designing a solution involving the use of energy-absorbing metallic materials that are inserted into a football helmet. These energy-absorbing materials are configured in target zones inside the helmet to reduce the acceleration of the head based on impact locations. The chosen materials are nitinol and spring steel, which display energy-absorbing properties. Various energy-absorbing material …

Electric Ducted Fan Lander, Maggie Waechter

Honors Theses

This report, and corresponding project, addresses the fact that there are not many student experiments with controlling real spacecrafts due to the scarceness of the craft, cost, risk, and finite fuel supply. This project demonstrates the possibility of a classroom substitute for students to understand how landers would operate on planetary bodies. In order to achieve flight from the drone, there were two separate designs produced, the electrical and structural system, that were integrated together to form a full prototype. The performance of the electric ducted fans (EDFs) as well as the batteries were tested to ensure that the components …

1st Person Ev With Electronic Differential, Tessa Biondo

Honors Theses

The First Person EV with Electronic Differential for Vehicle Dynamics Analysis project makes a significant leap forward in the exploration of electric vehicle (EV) stability and performance enhancement. Lead by a team of skilled electrical engineering students under the guidance of WMU’s associate Professor Dr. Sandun Kuruppu, this project aims to improve EV stability by optimizing power and torque distribution between wheels using an electronic differential system. The project encompasses the design and assembly of a 1/7^th scale custom electric vehicle, capable of remote control via a first-person view (FPV) camera and modified USB wheel and pedal assembly. The …

Kalamazoo Nature Center Mobile Application, Jacob Tebben

Honors Theses

This project aimed to address the challenge of enhancing visitor engagement and information dissemination at the Kalamazoo Nature Center (KNC) through the development of an integrated mobile and desktop application system. This initiative arose due to the limitations posed by traditional mobile applications which often become outdated and need to be updated by a dedicated software team. This project was designed for any user of the KNC desktop app to be able to update content on the mobile app, without the need of a dedicated software team.

The mobile application was designed for visitor use, enabling them to access up-to-date …

Dollarization In Latin America, Chloe Wieber

Honors Theses

Dollarization occurs when a country uses the US dollar or other foreign currency alongside or in place of the country’s domestic currency. This research seeks to understand the reasons countries dollarize and analyzes the extent that formal dollarization affects the economic wellbeing of dollarized countries in Latin America. The use of the US dollar is considerable in Latin America with Panama, Ecuador, and El Salvador being formally dollarized, and with Argentina currently considering formally adopting the US dollar. Using difference-in-difference techniques, I analyze the impact of dollarization on economic agents’ perceptions of the economy, on economic growth, and on inflation …

Adolescent Perceptions Of Weighted Blankets And Quality Of Sleep: A Mixed Method Design, Tara D. S. Summers

The Open Journal of Occupational Therapy

Background: The purpose of this mixed methods case study was to describe the perceived sleep quality experience of an adolescent, without a pre-identified sleep need, when they used a weighted blanket during sleep.

Method: Adolescents (n = 5) 11 to 16 years of age completed a sleep diary for 7 days, sleeping with a self-selected weighted blanket for at least 3 days. A semi-structured individual interview was held after Day 7.

Results: The majority of the participants would like to continue using a weighted blanket for sleep. Eighty percent of the adolescents choose to sleep with a …

Factors Influencing Driving Confidence In Older Adults, Jill Linder, Beth Ann Walker, Elizabeth Moore, Anne Hegberg

The Open Journal of Occupational Therapy

Background: It has been determined that both confidence and cognition impact driving performance and self-regulation. While it is known that cognitive decline impacts driving safety and that decreases in driving confidence can lead to self-driving regulation, further research is needed to determine whether cognition, demographics, and driving routines are associated with driving confidence.

Method: A non-experimental, cross-sectional design study using a convenience sample of 100 older adults was conducted to determine if individual factors are related to daytime and nighttime driving confidence.

Results: Multiple regression indicated that four variables predicted daytime driving confidence, including cognition, driving at …

Artificial Intelligence: Analysis And Guidelines For Scholarly Writing, Diane Powers Dirette

The Open Journal of Occupational Therapy

No abstract provided.

Development Of A Discrete Element Model For Artificial Turf, Justin Rittenhouse

Dissertations

NFL data exhibits a distinct correlation between an elevated lower extremity injury rate and synthetic surfaces. These ubiquitous injuries frequently relate to excessive foot traction (i.e., failure to release causing fracture or soft tissue damage). Consequently, a discrete element model was developed using open-source software to analyze stud traction. First, laboratory data was collected via bench level experiments covering seventeen different testing scenarios. A minimum of twenty-five samples were collected per scenario. Total work, average torque, and maximum torque were used as indicators of stud grip. And the latter two were statistically analyzed for outliers and significant differences. Next, an …

Research Day 2024 Program, Western Michigan University Homer Stryker M.D. School Of Medicine

Research Day

No abstract provided.

A Petrological Characterization Of The Iutzi Member Of Lucas Formation, Michigan Basin, Moira Burns

Honors Theses

It is thought that most Phanerozoic dolomites form via the replacement of precursor calcium carbonate [CaCO₃] with dolomite [CaMg(CO₃)₂] through a dissolution-precipitation reaction with a Mg-bearing fluid. Although this may be widely accepted, the timing, conditions, settings, and mechanisms associated with the dolomitization process are still strongly debated, resulting in the proposal of various dolomitization models. The association between evaporite minerals and dolomite in the rock record is common and has led many to propose a model genetically associating evaporative fluids and dolomitization. The evaporative model posits as marine fluids evaporate and become more …

Impact Of Snap On Food Insecurity: A Michigan And Indiana Case Study, Cecelia Chapleau

Honors Theses

Food insecurity is one of the most pervasive and concerning problems in the United States. Approximately 1 in every 13 households within the United States was food insecure at some point during 2022 (Rabbitt et al., 2023) Food insecurity occurs when households have a limited ability to access nutritious foods, there is a limited supply of safe, healthy foods, or they are unable to obtain food in socially acceptable ways (Anderson, 1990). Low food security is associated with adverse health outcomes like type 2 diabetes, cardiovascular disease, and poor mental health, which contributes to the severity of the problem (Thomas …

Lee Honors College - Assessing College-Wide Student Learning Outcomes, Anthony Helms, Ajani Wilson

Assessment Grants

The goal of this project is to review the LHC SLOS and accompanying assessment plan and to launch the first data collection from LHC alumni. The Lee Honors College (LHC) created college-wide student learning outcomes (SLO) for the first time in 2019. Due to unforeseen changes in college staffing, the assessment plan for the SLOS has never been implemented. Funding for this proposal would allow the LHC to provide compensation for a WMU graduate student to make the implementation of our assessment plan their sole focus to ensure a smooth transition from design to data collection, storage system and analysis. …

Refining The Fashion Merchandising And Design Program Assessment Components, Mary Simpson, Chitra Singh, Zee-Sun Yun

Assessment Grants

To establish a strong and consistent assessment foundation, a program level assessment plan needs to be reevaluated periodically. The overarching goal of this project is to refine the current assessment plan of the Fashion Merchandising and Design program, which includes three components: curriculum evaluation, student learning outcomes, and student exit survey. Particularly, this proposal addresses two main assessment focus areas: i) alignment of the capstone course outcomes and assessments to the program-level outcomes and ii) refining the student exit survey as a tool for program-level assessment. In addition, this project aligns with assessment goals of the program accreditation Textile and …

Unblocked Re-Imagining Incarceration By Restructuring The Cell Block, Carlee Castle

Interior Design Capstones

Prison cell blocks, often overlooked as monolithic structures of confinement, conceal a rich tapestry of complex social environments. This study delves into the interplay between the architectural and interior design of cell blocks and the individuals who reside within them, highlighting the profound impact of built elements on the promotion of privacy, independence, and collaboration among cellmates.

Incarceration, by its nature, places inmates in close proximity, fostering interactions that range from cooperation to conflict. However, the prison environment is not equivalent in different countries, and the layout of cell blocks varies widely. By examining these variations, it becomes evident that …

An Examination Of Specific Learning Disability Identification Post Participation In The Michigan Department Of Education Transformation Zone, Erin E. Senkowski

Dissertations

The identification of students with specific learning disabilities has evolved since the reauthorization of the Individuals with Disabilities Education Improvement Act (IDEIA) in 2004. This reauthorization gave state agencies parameters that disallowed using the severe discrepancy model for identification as a stand-alone method. In response to this change, Michigan provided Intermediate and local school districts with further guidance that disallowed the use of the severe discrepancy model for identifying children with Specific Learning Disabilities (SLDs) and instead required Intermediate School Districts, on behalf of their local districts, to choose one of three models, including Patterns of Strengths and Weakness (PSW), …

Speech Language Pathologists’ Confidence And Preparedness Working With Clients With Hearing Loss, Katherine Rosa Giustino

Masters Theses

Speech language pathologists (SLP) are professionals who may work with clients with hearing loss. With hearing loss, there are many devices, such as hearing aids, that must be functioning to provide effective speech and language therapy. Therefore, SLPs must be familiar with how to check and maintain these devices to provide optimal therapy. However, it is unknown how confident SLPs are with working with such devices. Data from a Qualtrics survey with questions that assess SLPs’ confidence in working with hearing assistive devices and communicating effectively with individuals with hearing loss was analyzed.

Overall, this study found confidence across all …

Reconnect: The Importance Of Beauty Within Architecture, Rebekah Lueck

Interior Design Capstones

In a world where secular design has become the norm, this project addresses the profound disconnect individuals experience in modern spaces. This research investigates the impact of contemporary design principles on user well-being and the built environment. It explores how secularism and modern design have contributed to this disconnect and alienation, and further how reforming a classical view and approach of architecture and design contribute to its remedy.

The integration of classical architecture not only offers an aesthetic and functional solution but also serves as a powerful response to the negative impacts of the fragmented view that has been embraced …

Teaching Classification Of Environmental Events In Narrative Abc Data Using Video-Based Behavioral Skills Training, Grace E. Sylvester

Masters Theses

Behavior analysts often conduct ABC assessments as part of a functional behavior assessment to develop a hypothesis about the function of behavior and to help guide further treatment decisions. Antecedent-Behavior-Consequence (ABC) assessment is a descriptive assessment technique used to gather information about environmental events surrounding a specific behavioral event (i.e., antecedents and consequences). ABC assessment involves several analytical skills, including classifying antecedents and consequences. There is little to no research available on how to effectively train individuals how to classify environmental events within narrative ABC assessment. It is important that behavior analysts correctly classify events in ABC assessments to increase …

Spatiotemporal Changes Of Urban Growth And Particulate Matter2.5 Concentrations: A Regional Study Using Gis-Remote Sensing Techniques, Mizanur Rahman

Masters Theses

Rapid urbanization and its environmental repercussions present profound challenges for developing countries. This study investigates the spatiotemporal relationship between urban growth and airborne particulate matter (PM_2.5) concentrations in four upazilas of Bangladesh from 2001 to 2019. Utilizing GIS and remote sensing techniques, this research explores the transitions in land cover and their impact on air quality, focusing on the escalating levels of PM_2.5 — a critical pollutant associated with numerous health risks. The study delineated land cover changes using satellite imagery; PM_2.5 concentration levels were derived from NASA's Socioeconomic Data and Applications Center while ground-truthing validated …

Longitudinal Evaluation Of Vitamin D Concentrations In Relation To The Onset Of Type 2 Diabetes In American Adults: A Secondary Data Analysis, Kathryn Michelle Schurr

Dissertations

Background: Prior research has suggested that low levels of Vitamin D may have negative effects on various biological functions, including Type 2 diabetes. The relationship between Vitamin D and the risk of Type 2 Diabetes has not yet been fully investigated. The objective of this research is to examine patients’ laboratory test data longitudinally to determine how vitamin D and other covariates of interest affect Type 2 diabetes status over time.

Methods: This study used retrospective data review from Quest Diagnostics from January 1, 2010, through December 31, 2022. Patients included in the study were required to have consecutive test …

Establishing Practical Equivalence Of Factor Loadings In Multigroup Confirmatory Factor Analysis, Christopher Edward Shank

Dissertations

This dissertation compares the performance of equivalence test (EQT) and null hypothesis test (NHT) procedures for identifying invariant and noninvariant factor loadings under a range of experimental manipulations. EQT is the statistically appropriate approach when the research goal is to find evidence of group similarity rather than group difference; despite this, the conventional approach to measurement invariance analysis relies upon NHT. EQT has proved effective for invariance detection using global model-data fit statistics in simulated and real-world data (Counsell et al., 2020) but its use in partial measurement invariance (PMI) analysis for evaluation of factor loading differences between groups has …

Shigella Flexneri Diguanylate Cyclases Regulate Pathogenesis, Ruchi Ojha

Dissertations

The intracellular human pathogen Shigella invades the colonic epithelium to cause disease. Prior to colon invasion, this bacterium navigates through different environments within the human body, including acidic conditions in the stomach and the small intestine which contains antimicrobial molecules including bile acids. To adapt to changing environments, Shigella uses the bacterial second messenger c-di-GMP signaling system. C-di-GMP is synthesized by diguanylate cyclases (DGCs) encoding GGDEF domains. Shigella encodes 10 DGCs in its genome, but 6 of these genes have acquired mutations that presumably inactivated the c-di-GMP synthesis activity of these enzymes. In this study, we first expressed VCA0956, a …

Identity And Alterity In A Comedy Series From Santa Cruz, Bolivia, During The Presidency Of Evo Morales, Anita L. Zandstra,

Dissertations

This dissertation explores the construction of social identity and social difference in and through Neo/Los Mismos, a Bolivian comedy series produced during the presidency of Evo Morales (2006-2019), the country’s first president to claim an Indigenous identity. These years were characterized by profound divisions between the Bolivian highlands, home to Morales’s base of support, and the opposition based in the lowlands department of Santa Cruz. This qualitative study takes an interdisciplinary approach to social identity and social difference during the Morales era, drawing on concepts from linguistic anthropology, literary criticism, and humor studies, and tracing connections between Neo/Los Mismos and …

Hydrophobic Deep Eutectic Solvents: Liquid-Liquid Extraction Of Organic Water Pollutants, Abigail Louise Maletta

Masters Theses

Pollution is a topic of significant research within the scientific community. The massive demand for industrial processes to deliver the technology and resources we rely on has opened numerous avenues for pollutants to enter the environment, affecting air, water, soil, and the food chain. Oftentimes, these pathways are intertwined, and the interplay between water and air currents spreads pollution globally, creating a cascade of environmental impacts. Water, a vital resource for all forms of life, is particularly susceptible to industrial pollution. Among the most prevalent water pollutants are heavy metals, such as lead and mercury, and organic compounds, often released …

Obliquely Impinging Jet Heat Transfer Fields: Effects Of Mach Number On Nozzle-To-Plate Distance, Thinnesh Ragupathy

Masters Theses

This study investigates the consistent features of heat flux patterns on surfaces impacted by jets at various Mach numbers, ranging from 0.1 to 1.0. It utilizes temperature-sensitive paint (TSP) analysis to examine how these patterns change. The research also explores the presence of self-similarity in both the fluctuation of heat flux and skin friction patterns, which are derived from temperature and heat flux data. A semi-empirical model is proposed to explain this self-similarity, suggesting that Mach number primarily affects heat flux patterns through the recovery temperature at the impact site.

Understanding the self-similarity of heat flux patterns across different Mach …

Bringing About Modernity: A Comparative Study Of Urban Development In Korea That Connects East Germany And The Two Koreas, Junghyun Kim

Masters Theses

This study builds upon the theories of architectural modernism advocated by the International Congress of Modern Architects (CIAM) and Le Corbusier as well as previous studies regarding East German experts being sent abroad to assist in urban development and modernizing schemes of non-European countries. This study examines the East German assistance in the reconstruction of the North Korean city of Hamhung and how North Korea absorbed the ideas of urban modernization advocated by the Soviet Bloc architects. Then the study will shift in focus to look across the border in South Korea which was influenced by a similar idea which …

Maize Production In Ghana: A Case Study Of Asante Akim North Municipality, Vincent Osei

Masters Theses

In spite of the numerous benefits of maize production in Ghana, its production is faced with a lot of challenges leading to production losses. Asante Akim North Municipality is one of the largest maize-producing areas in Ghana. However, studies on maize and its production in this municipality are under-researched, hence the need for this study. The main objective of the study is to analyze a 10-year (2013-2022) production trend of maize in Asante Akim North Municipality to identify factors affecting maize production in the municipality, so as to seek pragmatic measures to help improve maize yields in the municipality and …

Diagnosing Discharge Events Within A Novel Miniature Simplified Coaxial Ion Trap Mass Analyzer, David Virgil Sirbescu-Stanley

Masters Theses

Mass spectrometry is a technique that organizes material samples by mass to reveal their chemical composition by forming a spectrum. Since their invention, ion trap mass spectrometers have undergone significant enhancements. This work, funded by the National Science Foundation and in collaboration with Brigham Young University, the Simplified Coaxial Ion Trap (SCIT), attempts to simplify ion trap geometry and combine three ion traps into one device. Successful demonstration of the SCIT functionality could reduce costs, reduce manufacturing complexity, and shrink total instrument volume. At the same time, trapping capacity and analytical efficiency will be increased. However, as discussed within, challenges …

Development Of Occupation-Based And Trauma-Informed Care Resources To Promote Successful Reentry Following Release From Prison, Anna Burch

Capstone Projects

This 14-week capstone project focused on program development and education to establish occupational therapy-based resources into the Region 4 OS Reentry program through Michigan Department of correction (MDOC). The project was based out of Kent County Parole Office with the target population focusing on people who are actively on parole. Region 4 OS Reentry provides those on parole with many resources including bus cards, transitional housing, food vouchers, clothing/self-care assistance, trauma counseling and more. The purpose of this project was to utilize an occupational therapy lens to create resources revolving around ADL/IADLs, mental health, connecting the program with other community …