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A Journey To The Midwest For Migrant Farmwork: Women's Testimonies Examining Their Lived Experiences Using Autoethnography And Plática Research Methodologies, Yesenia G. Alcalá

Theses & Dissertations

A JOURNEY TO THE MIDWEST FOR MIGRANT FARMWORK: WOMEN’S TESTIMONIES EXAMINING THEIR LIVED EXPERIENCES USING AUTOETHNOGRAPHY AND PLÁTICA

RESEARCH METHODOLOGIES

Yesenia Garza Alcalá, Master of Business Administration

University of the Incarnate Word 2026

The purpose of my research was to share the stories of five women who experienced a yearly migratory routine from Del Rio, Texas, to work in farms and factories in the Midwest, and how that annual journey shaped and educated us. The women are four of my older sisters and me, all of whom traveled and worked in the Princeville, Illinois, migrant camp, where we experienced the …

Coastal Land Uplift And Intensified Land-Use Influence Seagrass Carbon And Nitrogen Sink Capacity Over Millennial Timescales, Martin Dahl, Sara Braun, Maria E. Asplund, Mats Björk, Joeri Kaal, Hans W. Linderholm, Elinor Andrén, Thomas Andrén, Žilvinas Ežerinskis, Madhavu Vidya Faizal, Sara C. Forsberg, Andrius Garbaras, Malin E. Kylander, Pere Masqué, Miguel A. Mateo, Justina Šapolaitė, Oscar Serrano, J. Robin Svensson, Olena Vinogradova, Martin Gullström

Research outputs 2022 to 2026

Seagrass meadows store sedimentary carbon and nitrogen and thus play an important role in climate change mitigation and nutrient retention globally. Here we reconstruct the impact of land-use and coastal land uplift on millennial–scale seagrass (Zostera marina) blue carbon and nitrogen accumulation in the Baltic Sea based on a multiproxy paleoreconstruction approach. We show that increased landscape clearance resulted in higher terrestrial runoff and increased accumulation of carbon and nitrogen, whereas land uplift led to hydrodynamically sheltered environments facilitating seagrass colonization, occurring 1700 and > 4000 years ago. The establishment of the seagrass meadows resulted in enhancement of the quality of …

From Post-Hoc To Pre-Assessment Evaluation: Llms As Collaborative Partners For Simulating Student Performance, Siaw Ling Lo, Ping Fan Ke, Yi Meng Lau

Research Collection School Of Computing and Information Systems

Ensuring the quality of multiple-choice questions (MCQs) remains a complex challenge in higher education, as traditional post-hoc psychometric analyses often identify flaws only after students have been negatively impacted. While Large Language Models (LLMs) offer potential for simulating student performance to validate items before delivery, they are frequently hindered by a “high-accuracy bias” that prevents larger models from realistically mimicking student errors. This paper proposes the Triadic Pedagogical Fit (TPF) framework, which triangulates Model Scale, Task Complexity via Revised Bloom’s Taxonomy, and Instructional Persona to optimize pre-assessment evaluation. Through two studies, we demonstrate that while Mid-scale (12B) models effectively mirror …

A Critical Review Of Pharmaceutical Pollutants In Soil And Air: Ecotoxicological Impacts On Animal, Plant And Microbial Communities - Health Hazards And Waste Management, Md Faisal Amin, Md. Saydur Rahman

School of Integrative Biological & Chemical Sciences Faculty Publications

Pharmaceutical contamination in soil and air has become a critical environmental concern due to its widespread sources, complex behavior, and long-lasting ecological impacts. This review comprehensively explores the presence, fate, and effects of pharmaceutical compounds in soil, highlighting their entry routes, environmental persistence, and biological consequences. Pharmaceuticals infiltrate terrestrial and aquatic environments through various pathways, including agricultural application, pharmaceutical manufacturing waste, sewage sludge, hospital and household discharges, irrigation with contaminated water, and atmospheric deposition. A wide range of drug classes, such as antibiotics, analgesics, non-steroidal anti-inflammatory drugs, antidepressants, anticancer drugs, and hormones, have been identified in both soil and air …

Primary Breast Sarcoma In Pediatric, Adolescent, And Young Adult Patients: A Single-Institution Retrospective Review, Amelie D. Perrier

Summer Research Program Abstracts

No abstract provided.

Horizontal Regulatory Barriers In International Trade: Evidence From Electric Plugs, Yuan Mei, Mingzhi (Jimmy) Xu

Research Collection School Of Economics

Domestic policies regulating the horizontal dimensions of product differentiation can impede international trade and have become a major concern in contemporary trade negotiations. We estimate trade frictions associated with incompatible designs of electric plugs, a well-known example of a horizontal regulatory barrier. Our findings indicate that fewer electronic devices are exported to destinations with incompatible electric plugs, and this effect operates through both the extensive margin and the intensive margin of exports. These results are further corroborated by an online survey of Chinese electronics exporters. Moreover, incompatible plugs are associated with lower average quality of exported electronic devices, suggesting that …

Rad Dudes, Rude ‘Tude, And The Family, Too: How Nintendo And Sega Advertisements Shaped The Image Of Gaming In The 1990s, Megan Condis, Jess Morrissette

Political Science Faculty Research

The tale of the console wars of the 1990s, the stodgy, conservative, family-friendly Nintendo consoles waging an advertising war against the rebellious upstarts behind the Sega Genesis, has been told many times over. These histories are “typically a mix between summaries of factual data and interviews of the key actors who were part of the events” (Arsenault 2017, p. 9). However, there has been relatively little research taking a systematic approach to measuring the veracity of these narratives. This article aims to supplement those histories by examining an archive of 2,875 print video game advertisements spanning from 1989 to 1995. …

Recent Canadian Immigration Reforms And Their Consequences For Migrant Children And Families’ Health: The “Globalization Of Indifference”?, Rachel Kronick, Marianne Côté-Olijnyk, Efrat Arbel

All Faculty Publications

Despite its reputation as a welcoming nation to refugees, Canada has enforced increasing restrictions on asylum, even in the face of evidence from the United States and around the world of the profound harm such restrictions cause. In this paper, we outline recent Canadian legal and policy reforms and their potential impacts on refugee health equity. Following Farmer's approach of ethnographic case narratives that aim to portray how current policy and legislation are embodied and felt in migrants' lives, we document avoidable harms to migrant children and families. Our data come from qualitative research with inadmissible asylum seekers and narrative …

Correctional Officer Suicide: A Theory-Driven Investigation Of Acquired Capability And Suicide Behavior, Abigail R. Andersen

All-Inclusive List of Electronic Theses and Dissertations

A growing body of research suggests that correctional officers (COs) die by suicide at a significantly higher rate compared to the general population and some other public safety personnel. Despite what is known about this phenomenon, an understanding of the risk factors driving the high rate of suicide among this population remains unclear. Specifically, little attention has been paid to specific risk factors for suicide among this population and there is an overall absence of theory-driven research investigating CO suicide. The present study sought to address the gap in this area of research by investigating potential risk factors for suicide …

Medication Management And Caregiving Stress Or Benefit In Children With Medical Complexity., Casey O'Hare, Nicole Werner, Makenzie Morgen, Sophie Kooiman, James Feinstein, Michelle A. Chui, Gemma Warner, Anna Jolliff, Brittany Storhoff, Kristan Sondegren, Danielle Gerber, Jens Eickhoff, Ryan J. Coller

Manuscripts, Articles, Book Chapters and Other Papers

This study quantified medication management experiences for children with medical complexity and associations with caregiver stress or benefit. Using data from the MedS@HOME trial, involvement of professional caregivers was associated with increased caregiver benefit, and greater network collective efficacy was associated with increased caregiver benefit and decreased caregiver stress.

TRIAL REGISTRATION: ClinicalTrials.gov, ID NCT05816590.

Harnessing Insect-Derived Oils For Enhanced Efficacy Of Plant-Based Repellents Against Disease-Transmitting Mosquitoes, John Bwire Ochola, Cynthia M. Mudalungu, Hosea O. Mokaya, Xavier Cheseto, Gilvian N. Onsomu, Subramanian Sevgan, Segenet Kelemu, Baldwyn Torto, Chrysantus M. Tanga

All Peer-Reviewed Publications

Mosquito-borne diseases such as malaria, dengue, chikungunya, Zika, and yellow fever pose a growing global health threat, worsened by resistance to synthetic pesticides. This study evaluated insect oils from Schistocerca gregaria, Ruspolia differens, and Macrotermes spp. as adjuvants in plant-based mosquito repellents. The formulations were tested for complete protection time (CPT) against Anopheles gambiae, Aedes aegypti, and Culex quinquefasciatus, and volatile organic compounds (VOCs) emitted from treated volunteers were analyzed. Incorporating insect oils doubled CPT compared to essential oils alone. The most effective blend of Macrotermes oil with Cymbopogon nardus (1:1) achieved CPTs of 3.50 h for An. gambiae, 2.56 …

Harnessing Digital Twin (Dt) Technology For Food Security And Climate Resilience In Sub-Saharan Africa (Ssa), Henri E.Z. Tonnang, Francis Chianu, Siyabusa Mkuhlani, Francis Muthoni, John Michael Humphries Choptiany, Franck B.N. Tonle, Bonoukpoe M. Sokame, Mercy Lung’Aho

All Peer-Reviewed Publications

Sub-Saharan Africa (SSA) faces chronic food insecurity despite possessing approximately 60% of the world’s uncultivated arable land. Field trials generate evidence but are costly and insufficiently scaled to address accelerating climate and demographic pressures. Digital twin (DT) technology, defined as the continuous, bidirectional virtual replication of physical systems using real-time data, supports monitoring, modelling, and optimisation of agrifood systems. To our knowledge, however, no published synthesis has examined DT agriculture research through the lens of SSA food systems or smallholder farming realities. A PRISMA-compliant systematic review was conducted across bibliographic databases using a pre-defined Boolean search and adapted PICOS eligibility …

Coupling Intensified Push–Pull Technology With Insect Frass Biofertilization Improves Land Productivity, Protein Yield And Carbon Stocks, Evanson R. Omuse, Honest Machekano, Daniel M. Mutyambai, Samwel O. Ogaji, Chrysantus M. Tanga, Thomas Dubois, Johnson O. Nyasani, Patrick Mudavadi, Sevgan Subramanian, Frank Chidawanyika

All Peer-Reviewed Publications

We evaluated agricultural innovations such as push-pull (PP), vegetable-integrated push-pull (VIPP), and black soldier fly frass fertilizer (BSFFF) for their transformative potential in rural smallholder agriculture. Using 12 cropping systems comprising two crops (maize and cowpea), BSFFF and diversified systems (PP and VIPP), we conducted a 2-year multilocation trial to evaluate impacts on crop productivity, economic benefits, and carbon stocks. Diversified cropping increased above-ground biomass, carbon stocks, and total crop yield by 4.7–11.2-fold with significant increments upon addition of BSFFF. Diverse cropping and BSFFF increased maize grain yield by more than 2-fold. Cowpea yield responded positively to BSFFF. High total …

Space-Time Dynamics Of Rainfed Wheat Yield In Ethiopia: Insights From Remote Sensing, Habtamu S. Gelagay, Louise Leroux, Lulseged Tamene, Zewdu Abro, Siyabusa Mkuhlani, Kindie Tesfaye, Wuletawu Abera, João Vasco Silva, Marc Corbeels

All Peer-Reviewed Publications

Ethiopia is the largest wheat producer in sub-Saharan Africa, yet national food security efforts are constrained by coarse administrative level yield data that lack spatial and temporal detail. To bridge this gap, we present a spatio-temporally explicit assessment of rainfed wheat productivity, stability, and trends across Ethiopia from 2016 to 2023 using a multi-scale, data-driven framework. We integrated Sentinel-1-and Sentinel-2-derived biophysical, biochemical, physiological, phenological, and structural metrics as proxies for the integrated effects of genotype, environmental, and management factors (G × E × M) on wheat yield. These metrics were modeled using an ensemble machine learning approach to estimate wheat …

Beyond Legacy Indices: A Critical Review Of The Modified Nemerow, Mean Enrichment Quotient, And Aggregated Multivariate Environmental Risk (Amer) Indices For Heavy Metal Pollution In Sediments, Md Shahnul Islam, Anjuman Ara

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

Background: Heavy metal pollution in sediments poses persistent ecological risks due to metal toxicity, bioaccumulation, and potential for remobilization. Legacy indices have been widely used for decades but suffer from fundamental flaws, including arbitrary background dependence, lack of grain-size normalization, and poor ecological relevance.

Objective: This review critically evaluates three emerging sediment pollution indices, the Modified Nemerow, Mean Enrichment Quotient (MEQ), and Aggregated Multivariate Environmental Risk (AMER) index, to assess their methodological advances and potential to replace legacy approaches.

Methods: A structured literature search was conducted in Web of Science, Scopus, and Google Scholar (2010–2026). Using an adapted Birch framework, …

Characterization Of Regulation Of Ace2 And Morphogenesis (Ram) Pathway Components In Aspergillus Fumigatus, Devi Naga Jyothi Bale

Theses and Dissertations (ETD)

Aspergillus fumigatus CotA is a conserved protein kinase and predicted orthologue of Cbk1, a terminal kinase of the Regulation of Ace2 and Morphogenesis (RAM) network. In our previous study, disruption of CotA resulted in carbon source dependent invasive growth with the mutant exhibiting preferential growth on glucose but severely impaired growth on alternate carbon sources. This pathway in other fungi has been implicated in the regulation of morphogenesis, stress responses, and virulence, but this study is the first one to characterize it in the pathogenic filamentous fungus.  In yeast, the RAM network includes the CotA ortholog, Cbk1, and associated proteins, …

Extending Geometric Acoustic Ray Tracing To Multi-Room Environments: A Case Study On Gunshot Sound Transmission Between Adjacent Rooms, Tyler Ton

Theses and Dissertations

Accurate localization of gunshots in multi-room building environments remains a challenging problem in acoustic forensics and public safety applications. Existing approaches model sound propagation within a single room, neglecting the transmission of acoustic energy through walls and other building materials. This thesis presents a study on modeling multi-room gunshot acoustic transmission, combining geometric ray tracing with structural acoustic transmission-loss modeling to generate impulse responses for two horizontally adjacent rooms separated by a shared wall, providing a foundation for future inter-room gunshot localization work. The proposed system uses GSound-SIR, a geometric acoustics engine, to simulate sound propagation in both of the …

A Data-Driven Koopman Framework For Station-Keeping On Near Rectilinear Halo Orbit, Anusha Sharma Malladi

Theses and Dissertations

Cislunar missions have gained significant attention in recent decades, motivating the need for efficient modeling and reliable control. In this work a Koopman operator based framework is developed for approximating the error dynamics around a reference Near Rectilinear Halo Orbit (NRHO) in the Earth-Moon Circular Restricted Three-Body Problem (CR3BP). A decoder free neural network is used to learn a lifted linear representation of the nonlinear CR3BP dynamics and a residual based approach is used to identify the corresponding control input matrix. The model is then implemented in a receding-horizon target point controller and compared with uncontrolled propagation and a State …

Comparative Performance Of Physiological Vital-Sign Forecasting Under Random And Patient-Wise Splitting Using Deep Learning, Lavanya Vasavi Chittem Reddy

Theses and Dissertations

Physiological vital-sign forecasting estimates future measurements based on recent temporal patterns and can support analysis of continuously recorded monitoring data. This study comparatively evaluated deep feedforward, recurrent, bidirectional recurrent, long short-term memory, and bidirectional long short-term memory architectures for one-step-ahead forecasting of peripheral oxygen saturation, heart rate, and pulse rate. Each model received consecutive observations of peripheral oxygen saturation, heart rate, pulse rate, respiratory rate, and age, while separate single-output models predicted the next value of the selected target.

Random and patient-wise data splitting were compared using identical input definitions, preprocessing procedures, model architectures, and training hyperparameters. The strongest architecture …

Developing Imitation Learning Policies By Exploring Diffusion Framework For Quadcopters, Likith Swamireddy

Theses and Dissertations

Imitation learning offers a promising approach in developing near-optimal onboard policies for nonlinear systems, by learning from computationally expensive trajectory planners during offline training. Existing State-of-the-art methods commonly learn deterministic mappings from observations to actions by training fast neural networks to mimic the expert demonstrations, which can limit their ability to capture the action distribution, when the policy is trained on multiple possible expert commands to reach the same target, and this may lead to unsafe scenarios in the obstacle environments. To address these challenges, this study explores Diffusion Models (DMs) as a feedback controller for quadcopters that learns the …

In-Process Large Language Model Requesting Through Knowledge Graphs For Interfacing With Manufacturing Digital Twins, Reiki Tanaya Karuka, Vinh Nguyen

Michigan Tech Publications

Digital twins (DTs) have potential to improve manufacturing processes by providing in-process monitoring and reducing trial-and-error while improving process prediction and performance. However, identifying anomalies or defects in a DT environment remains a very time intensive process that requires multidisciplinary expertise and significant manual effort in analyzing the system. Large language models (LLMs) offer potential capabilities to interpret system-level information and support user-driven querying, but their effectiveness is limited by hallucinations when reasoning over large and dynamic manufacturing datasets inherent to process monitoring DTs. Knowledge graphs (KGs) have emerged as efficient tools in the industrial domain to efficiently represent data …

Evaluating The Pulse Of Exercise Programs: Developing And Validating The Intervention Usability Scale For Exercise (Iuse) To Enhance Implementation And Adherence, Anne Inger Mørtvedt, Eva Ageberg, Steven Elmer, Kevin Trewartha, Erich Petushek

Michigan Tech Publications

Background: Adherence to exercise interventions is often suboptimal, despite numerous studies documenting barriers and facilitators. Usability may be a critical yet underexplored determinant of adherence. This study aimed to develop and assess the psychometric properties of the Intervention Usability Scale for Exercise (IUSE). Methods: Item generation and content validation involved cognitive interviews and feedback from eight exercise intervention stakeholders and ten target users from the general public. Subsequently, 526 target users from University, Qualtrics and Prolific participant panels assessed exercise programs through an online survey. Dimensionality was assessed using Principal Component Analysis (PCA), Exploratory Factor Analysis (EFA), and bifactor models. …

Examination Of Cleveland State Community College's Employee Professional Development Program: Leveraging Employee Learning And Relationship Building Amidst Significant Institutional Change, Ashley T. Raburn

Masters Theses and Doctoral Dissertations

Within the last decade, Cleveland State Community College has gone through many changes, including transitioning between five different administrations from 2021 to 2025. With this change in administration, there have been many different philosophies of how professional development should be handled at the college. The priority of professional development has shifted between very high and very low, and the ownership of active initiatives was unclear. Recently, college administrators have implemented a program intended to allow PD at the college to have more structure and visibility within the employee community. Literature in both Higher education and other industries discusses the importance …

The Effect Of Organizational Change On Performance-Based Funding And Decision-Making At A State-Funded Historically Black College And University, Valerie G. Williams

Masters Theses and Doctoral Dissertations

Performance-based funding (PBF) has become an increasingly common mechanism for allocating state resources to public higher education institutions; however, questions remain regarding its effectiveness and potential unintended consequences for historically underfunded institutions, particularly Historically Black Colleges and Universities (HBCUs). This study examined the effect of organizational change on institutional performance and decision-making at a publicly funded land-grant HBCU in the southeastern United States operating within a PBF environment. Specifically, the study examined institutional changes associated with the implementation of the Complete College Tennessee Act (CCTA) and the Focus on College and University Success (FOCUS) Act and their relationship to student …

Linking Sustainability Performance To Stock Resilience During And After Covid-19 Crisis: Evidence From Southeast Asia, Khalilul Rahman, Retnosari Retnosari, Sanda Patrisia Komalasari, Muhammad Wafiq

Jurnal Akuntansi dan Keuangan Indonesia

Background: The COVID-19 pandemic severely disrupted markets. While sustainability performance measured by ESG scores theoretically buffers against shocks, its efficacy in emerging markets with nascent sustainability frameworks remains underexplored. Method: We analyze a balanced panel of 1,395 observations from 279 non-financial Southeast Asian firms (2020–2024). Using OLS, lagged, and fixed effects models, we compare the impact of sustainability performance on stock resilience during the 2020–2022 and post-pandemic (2023–2024) periods. Findings: Sustainability performance (ESG scores) significantly enhanced stock resilience during the pandemic. However, this protective effect dissipated post-pandemic. Results confirm a statistically significant improvement in overall resilience following the crisis, as …

The Future Of Nature-Based Recreation In Warming Tropical Cities, Perrine Hamel, Emma E. Ramsay, Shawnda A. Morrison, Su Li Heng, Winston T. L. Chow, Beatrice H. Ho, Pearl Min Sze Tan, Moshe Mandelmilch, Lancy Sim, Jason Kai Wei Lee

Research Collection College of Integrative Studies

Nature-based recreation promotes health in tropical cities but is increasingly threatened by rising heat. This review presents recent evidence on the issue of humid heat stress and outdoor recreation in tropical cities and outlines key adaptation strategies – addressing hazard, exposure, and vulnerability – to enable ‘heat-smart’ nature-based activities. Despite existing solutions, critical research gaps remain, especially in integrating social, physiological, and technological insights to better address humid heat stress in tropical urban environments.

Arithmetic And Necessity: A Quasi-Concrete Modal Structuralist Account, Benjamin Faltesek

Mathematics, Philosophy and Physics (D.Sc.) Dissertations

This dissertation addresses the necessity of arithmetic by distinguishing two tasks that are often run together: the derivation task, which seeks to prove that mathematical truths are necessary, and the characterization task, which asks what kind of necessity arithmetic has and what grounds it. Setting the former aside for now, I focus on the latter, arguing that an adequate explanation of arithmetical necessity requires two sources: logical necessity and the necessary possibility that the right kind of structure exists. The second source makes mathematical modality distinctively mathematical, and the dissertation’s positive contribution emerges chiefly in that area. I survey and …

A Projector-Rank Partition Theorem For Exact Degrees Of Freedom In Experimental Design, K. G. Nagananda

Mathematics and Statistics Faculty Publications and Presentations

In many experimental designs—split-plots, blocked or nested layouts, fractional factorials, and studies with missing or unequal replication—standard ANOVA procedures no longer tell us exactly how many independent pieces of information each effect truly contributes. We provide a general degrees of freedom (df) partition theorem that resolves this ambiguity. For N observations, we show that the total information in the data (i.e., N −1 df) can be split exactly across experimental effects and randomization strata by projecting the data onto each stratum and counting the df each effect contributes there. This yields integer df—not approximations—for any mix of fixed and random …

Green Waste Biochar And Plant Growth-Promoting Bacteria Enhance Tomato Growth Under Combined Nutrient Deficiency And Salinity Stress, Soumaya Tounsi-Hammami, Munawwar Ali Khan, Mahra Alqemzi, Salama Ali Almehairi, Aneesa Rasheed Anwar

All Works

This study characterized a green-waste-derived biochar from date palms and ghaf trees and investigated its potential as a soil amendment with halotolerant Bacillus spp. to improve tomato seedling quality under dual stress of salinity and nutrient deficiency. Biochar was produced through pyrolysis at 450 °C and then characterized for yield, pH, electrical conductivity, proximate analysis, surface morphology, energy-dispersive X-ray spectroscopy, and heavy-metal content. Its effectiveness was tested both alone and in combination with a Bacillus sp. mix, using a completely randomized design with varying NPK fertilizer levels and saline irrigation. Tomato seedlings were evaluated 45 days after planting for various …

Towards Promoting Innovation In Inclusive Education: Behavioural Intention Of Teachers Towards Adopting Ai To Teach Students With Learning Disabilities In The Uae, Fatima Zraydi, Maxwell Peprah Opoku, Bernadette M. Guirguis, Laurent Gabriel Ndijuye, Ebenezer Mensah Gyimah

All Works

The integration of artificial intelligence (AI) in education offers significant potential for identifying and supporting all students, including those with learning difficulties. Although discussions on the potential of AI to advance the learning of students are ongoing, AI usage among teachers to leverage it in the teaching of students with learning disabilities in nonwestern contexts, such as the United Arab Emirates, is unresearched. The study was guided by a unified theory of acceptance and use of technology to examine teachers’ intentions toward adopting AI tools to enhance educational outcomes for students with learning disabilities in the UAE. Using a quantitative …