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A Study Of Glyphosate, Pesticide Mixtures, And Metabolic Health Outcomes: Integrating Epidemiologic, Mechanistic, And Ecological Evidence On Environmental Drivers Of Metabolic Health, Sarah Otaru

Electronic Theses & Dissertations (2024 - present)

Glyphosate, the most extensively used herbicide worldwide, has become a ubiquitous environmental contaminant. Although initially considered safe due to its specific biochemical target in plants, emerging evidence suggests that chronic, low-level human exposure may disrupt metabolic processes. Simultaneously, the global rise in metabolic disorders such as metabolic syndrome (MetS), obesity, and type 2 diabetes, has created a pressing need to identify novel, potentially modifiable environmental contributors. This dissertation investigates the relationship between glyphosate and metabolic health through a triangulated framework that integrates individual-level epidemiological analysis, systematic synthesis of mechanistic evidence, and ecological evaluation of pesticide mixtures.

The first study employed …

Characterization Of Novel Hantaviruses In Paraguay, Ifebuche Nnamani

Theses and Dissertations (ETD)

The genus Orthohantavirus, is a group of tripartite, negative-sense RNA viruses of which some members are the etiologic agents for hemorrhagic fever with renal syndrome (HFRS) or orthohantavirus cardiopulmonary syndrome (HCPS) in the Old and New Worlds, respectively. Sampling of wild rodents for these viruses has increased our knowledge of their host range and continues to lead to the discovery of new orthohantaviruses species and strains. HFRS and HPS have case fatality rates of up to 15% and 40%, respectively. And in some years, morbidity rates of up to 100,000 cases can be reached, globally. The epidemiological evidence of human-to-human …

Machine Learning And Uass For Managing Autumn Olive (Elaeagnus Umbellata) On Reclaimed Surface Mines, Sean Michael Keane

Graduate Theses, Dissertations, and Problem Reports (ETD)

This research introduces an innovative approach for managing autumn olive (Elaeagnus umbellata) on reclaimed surface mines through the integration of machine learning algorithms and unmanned aerial systems. The proliferation of autumn olive presents significant ecological challenges on disturbed landscapes, necessitating more efficient detection and control methods. This study evaluated Random Forest classification and deep learning approaches using the U-Net architecture for identifying autumn olive across four phenological stages using high-resolution imagery. The RGB U-Net model achieved F1-scores of 0.927, 0.912, and 0.871 for autumn olive detection during peak, late, and senescence stages respectively, outperforming both multispectral and vegetation …

How Does Restoration Affect Food Web Dynamics Within Quail Populations In The Mckinleyville Land Trust Dow’S Prairie Educational Wetland?, Taylor Shaw, Jesika Gonzalez, Lorilynn Acosta, Logan Blank, Zen Godinez, Amir Malikyar, Nanette Durbin, Nievita Bueno Watts

IdeaFest 2025

The McKinleyville Land Trust’s Dow’s Prairie Educational Wetland is a 2.55-acre endangered coastal prairie wetland in California, conserved in 2009. Restoration efforts with the Wiyot Tribe and U.S. Fish & Wildlife removed invasives and reintroduced native plants, but coincided with declining California quail (Callipepla californica) populations. This study establishes the first baseline conditions, using wildlife cameras and botanical surveys to assess quail habitat suitability, examining invasive removal, predation, and fragmentation impacts. Findings will guide adaptive management to balance biodiversity and restoration, while honoring the Baduwa’t Wiyot’s ancestral homeland.

How Fog Shapes Foraging: Quantifying The Behavioral Impacts Of Fog Exposure On Western Thatching Ants (Formica Obscuripes), Lucky Ng

IdeaFest 2025

This project investigates how fog influences the foraging behavior and activity levels of ants (Hymenoptera: Formicidae) in coastal northern California. By observing changes in foraging intensity and specific behaviors during foggy versus non-foggy conditions, this research aims to better understand how microclimatic factors like fog affect ant ecology. Findings may inform broader ecological studies on climate adaptation and the role of fog in shaping invertebrate behavior.

Firelog: An Open-Source, Low-Cost System For Temperature Logging During Wildland Fires With High Spatial And Temporal Resolution, Nipuna Chamara, Yufeng Ge, Sabrina E. Russo

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Measuring flame, air, and soil temperatures during wildland fires, including wildfires and controlled burns in land management contexts, is crucial for research and applications in fire ecology, safety, and management in a wide array of ecosystems, from grasslands to forests. However, open-source and commercial systems are needed for measuring and logging flame and air temperatures that are user-friendly, economical, modular, and customizable. This paper details the design, development, and validation of the FireLog system. Laboratory validation experiments demonstrated high measurement accuracy, with a minimum coefficient of determination (R2) of 0.98 and the highest observed root mean square error (RMSE) of …

Lichen It: Optimizing Post-Fire Caribou Lichen Transplantation And Assessment, Elise Brown-Dussault

Theses and Dissertations (Comprehensive)

Caribou lichen species are common in mid- to late-seral boreal forests, serving as an important winter diet staple for boreal woodland caribou. However, as climate change causes boreal wildfires to increase in size, severity, and frequency, available tracts of mature forest are decreasing, diminishing the extent of mature caribou lichen stands. Caribou lichens reproduce vegetatively, so bigger and more severe fires could exacerbate their dispersal limitations, potentially extending the timeline for caribou lichen stand recovery beyond 80 years. Trials have shown that “transplanting” caribou lichen fragments into disturbed areas can lead to the establishment of caribou lichen mats; as such, …

Using Landscape Ecology And Spatial Statistics To Examine The Impacts Of Proposed Removals To Natural Heritage System And The Agricultural System Of Ontario’S Greenbelt, Brianna Downey

Theses and Dissertations (Comprehensive)

The 2022 proposed removals from the Greater Toronto Area (GTA), Southern Ontario’s Greenbelt would have resulted in negative impacts including, reductions to the size and functionality of the Agricultural System and Natural Heritage System, which are components of protected Greenbelt area. Several removal sites were located either on or in close proximity to corridor areas of the NHS, reducing connectivity and negatively impacting the surrounding ecological area. The removal of Agricultural land primarily consisted of corn and soybeans, as well as large removals of woodland, wetland, and shrubland class areas. The removal sites on local Agricultural composition and configuration were …

Carbon Dynamics Across The Mangrove-Tidal Flat Ecotone In A Tropical Seascape, E. S. Yando, I. J.B. Alemu, L. Kiah Eng, T. M. Sloey, M. Van Breugel, Bhatia N. Friess

Biological Sciences Faculty Publications

Mangroves and other blue carbon ecosystems are important for climate through the storage and sequestration of carbon. Most research estimates carbon dynamics by subsampling central portions of the ecosystem and are then upscales using habitat maps to patch, landscape, or regional levels. However, heterogeneity is rarely accounted for - particularly at edges. Further, adjacent tidal flat ecosystems have only recently been considered for carbon storage, but may be undervalued if areas where they transition with vegetated systems are not accounted for. To address the lack of information at coastal ecotones, we examined both soil carbon storage and carbon dioxide flux …

Enhancing Dengue Forecasting With Remotely Sensing-Derived Vector Proxies And Random Forest Models: A Case Study For Sri Lanka, Shuyu Ye

Public Health Theses

Dengue fever is a growing global public health threat, especially in tropical and subtropical regions such as Sri Lanka, where seasonal outbreaks impose recurring burdens on health systems. Accurate and timely forecasting of dengue incidence is essential for public health preparedness, yet most existing models suffer from key limitations: they rely on historical case trends without accounting for real-time ecological dynamics, and often require entomological surveillance data that is not consistently available. This thesis addresses these gaps by proposing a machine learning forecasting framework that integrates remote sensing-derived environmental proxies to estimate latent mosquito vector abundance.Using Principal Component Analysis (PCA), …

Prevalence And Correlates Of Antipsychotic Use Without An Indicated Diagnosis Among Long-Stay Residents In Nursing Facilities In Massachusetts, Hongyi (Sophie) Liu

Public Health Theses

Background: In 2012, the Centers for Medicare & Medicaid Services (CMS) implemented initiatives to reduce unnecessary antipsychotic medication use in elderly nursing home residents to ensure quality of care. While antipsychotic use among long-stay nursing home residents has decreased nationwide, Massachusetts still exceeds the national average and ranks 6th in the U.S. This study aims to evaluate and identify both facility-level characteristics and resident-level correlates of antipsychotic use without an indicated diagnosis among long-stay residents in Massachusetts nursing homes. Methods: The study examined 30,857 long-stay residents across 345 nursing facilities in CY2023, using data from the Minimum Data Set (MDS), …

Under-Five Malaria And Malnutrition Syndemic In Rajasthan, Nandini Sinha

Public Health Theses

Background: The syndemic of severe acute malnutrition (SAM) and malaria in under-five children in Rajasthan presents a critical public health challenge. Current SAM and malaria programs are implemented as siloed interventions despite the potential benefits of integrated approaches. A better understanding of the interactions between these factors is important to strengthen the delivery of integrated services.

Objective: This study investigates the relationship between under-five SAM and malaria infections at the block level in Rajasthan to inform targeted, integrated interventions. By running regression analysis, we will identify associations between these co-occurring health threats to guide state-level policy integration. To the best …

Tomatoes, Sea Cucumbers, And Ai. Conceptualizing A Casual Loop Diagram For Assessing Challenges And Opportunities Of The Urban Ocean, Elisa Fernández Ramos, Andrés Jaque Ovejero, Eva Hurtado Torán, Oz Sahin

Capítulos de libros

Could the combination of tomatoes, sea cucumbers, and AI be the glocal recipe for sustainable urban development systems? In this text, we review some of the implications of oceanic expansion, proposing an experiment to extract these and other conclusions that may help us realize its importance and the role of architects and urban designers in it. This research assumes that the coastline is fictitious, just like the boundary of cities that usually coincides with it. The city is part of the marine ecosystem and sprawls over it, primarily for productive purposes. Productivity models have shaped our cities since the beginning …

Assessing Ecological And Food Web Responses To Small-Scale Stream Restorations In Urban And Agricultural Streams, Sydney Mcandrews

Masters Theses

Urban and agricultural streams across the Midwestern United States are vulnerable to elevated pollution, eutrophication, habitat simplification, and losses of sensitive species. Instream habitat restoration is increasingly used to mitigate the impacts of rapid land-use change. This study synthesizes habitat and biological responses from a 2020 urban stream restoration in the Saline Branch (Urbana, Illinois) and evaluates food web responses from both the Saline Branch and a 2010 restoration in Kickapoo Creek (Charleston, Illinois), an agricultural stream. In the Saline Branch, four years of fish and three years of habitat and macroinvertebrate pre-restoration surveys were compared to three years of …

Impact Of Tobacco Control Policies On Socioeconomic Inequalities In Smoking Prevalence And Quit Ratios: An Ecological Study In The European Union (2009–2020), Ariadna Feliu, Esteve Fernandez, Irene Tamí-Maury, Cristina Martinez

Faculty, Staff and Student Publications

Background: Tobacco control efforts have succeeded in reducing smoking prevalence and increasing smoking cessation rates in the European Union Member States (EU27). However, the impact of these policies has been unequal across different income groups.

Methods: Ecological study with the country as unit of analysis. We used the Tobacco Control Scale (TCS) in EU27 in 2010 and the prevalence of smoking and quit ratios from the Eurobarometer surveys (2009, n=27 788; and 2020, n=28 288). We analysed the relationship between the TCS scores (2010) and smoking indicators and their relative changes (between 2009 and 2020) using scatter plots and multiple …

Beneath The Roots: Becoming Native Through Mangrove Teachings And Wisdom, Shima Aeinehdar

Theses and Dissertations

Beneath the Roots uses the wisdom of mangroves to investigate the naturalization of humans through science, spirituality, and storytelling. The seeds of Avicennia marina, the gray mangrove, drifted to Qatar at some point in history and took root, like so many other people here. The mangrove survives in a harsh saline environment through a unique salt excretion process. As a Qatar-born expat, I relate to this struggle to survive and nativize in a land that is both my own and foreign to me, in a cyclical conversation. I explore this nativization process through a ritual of salt extraction, creating botanical …

Developing Bioinformatics Expertise Through The Annotation Of The Gut Microbiome Of Odontotaenius Disjunctus, Keidra E. Carter

Theses and Dissertations

Next-generation sequencing (NGS) technologies have revolutionized biological research by generating unprecedented volumes of genomic data, necessitating advanced bioinformatics tools and specialized expertise to fully interpret complex microbial communities. This study outlines an integrated workflow to characterize the gut microbiome of the wood-feeding beetle Odontotaenius disjunctus. Prokka is employed for functional annotation to identify protein-coding genes and other genomic features, while Kaiju is used for taxonomic classification. DIAMOND is then applied to locate and validate the taxonomic assignments generated by Kaiju by aligning sequences within the contigs to a comprehensive protein database, proGenomes. Functional analysis revealed that the contigs encode proteins …

Mysteries Of The Bryozoans, Judith E. Winston

Gulf and Caribbean Research

Marine bryozoans have about 6,000 living species and many fossil species going back to the early Ordovician. As suspension feeders they can be an important part of keeping the ocean healthy. Yet, as colonial organisms, even though present in habitats from estuaries and continental shelves to the deep sea, they are often treated as background for mobile organisms. There is still much to learn about their lives and relationships. This Ocean Reflection describes my career as a museum scientist from the 1970s to today, beginning at a time when it was often difficult as a woman to find a way …

Evolving Perceptions Of Self And Others: The Effects Of Communing With Nature While Thru Hiking The Florida National Scenic Trail, Stella P. Arbeláez Tascón

Graduate Thesis and Dissertation post-2024

This body of artwork comprises a thesis that documents and exposes the artist’s inner workings as she regained balance after experiencing deep emotional trauma. This individual’s healing transformation was prompted by her immersion in nature while walking the Florida National Scenic Trail in its entirety, 1,130 miles (or 1,818 km), from the Everglades to the panhandle, in three and a half months. The artistic research conducted, and autobiographical body of work created from it, aims to help others reconnect with their own strengths and to seek wellness in the restorative properties of Nature, while advocating for an empathetic approach to …

Organization Of Lithic Technology At 48ye240 Yellowstone National Park, Wyoming: Bifaces As Indicators Of Environmental Predictability, Hunter Alan Watry

Graduate Student Theses, Dissertations, & Professional Papers

48YE240 within the Hayden Valley of Yellowstone National Park is a pre-contact hunter-gatherer site recorded on two separate terraces along the Yellowstone River. This site and the two terraces are divided by the Grand Loop Road. The higher terrace is west of the road, while the lower terrace is east of the road, adjacent to the Yellowstone River. The lower terrace was excavated in 1999 and included a hearth feature dating to the Middle Archaic. The higher terrace was excavated in 2020 and contained intact cultural deposits. This thesis presents a lithic analysis of the assemblage recovered from the higher …

Binoculars To Bytes: Development And Field Validation Of An Ai-Driven System For Avian Monitoring, Christian J. Dupree

Graduate Student Theses, Dissertations, & Professional Papers

Autonomous camera-trap arrays coupled with artificial-intelligence (AI) vision can lift bird monitoring beyond the spatial, temporal, and labor limits of traditional field surveys. We present Binoculars to Bytes (B2B), an open-source pipeline that turns 180–360° time-lapse imagery into analysis-ready avian data. At Freezout Lake Wildlife Management Area (Montana, USA) the system ran four-hour morning deployments during spring and fall migrations (2023–2024). A YOLO-NAS detector, incrementally refined with a “Specialized Localized Iterative Model” workflow, quadrupled local accuracy and, after confidence-based species-binning, cut false-positive rates in half. Daily AI species lists were benchmarked against contemporaneous eBird citizen-science checklists and recovered ≥ …

Health Risk Assessment Of Copper Exposure Through Hand-To-Mouth Activities In The Lithium-Ion Battery Manufacturing Industry, Adisorn Phungkum, Worawat Meevasana, Khanidtha Marungrueang

Applied Environmental Research

This study aims to evaluate the occupational exposure levels of copper (Cu) among workers in a battery manufacturing facility by analyzing the Cu concentrations on hand surfaces at three distinct time periods: before work (BW), before lunch (BL), and after work (AW). A total of 30 workers involved in 13 different workstations or tasks—such as battery cell preparation, spot welding, soldering, and labeling—were included in the study to reflect diverse exposure scenarios. Surface wipe sampling was conducted according to NIOSH Method 9102, and the Cu concentrations were quantified via inductively coupled plasma‒mass spectrometry (ICP‒MS). Additionally, the hazard quotient (HQ) was …

Investigation And Health Risk Assessment Of Indoor And Outdoor Nitrogen Dioxide At Preschools In Haze Areas Of Lampang Province And Industrial Areas Of Rayong Province, Thailand, Susira Bootdee, Sawaeng Kawichai, Suganya Phantu, Sopittaporn Sillapapiromsuk

Applied Environmental Research

Nitrogen dioxide (NO2) is a major indoor air pollutant and a significant ambient air contaminant associated with health effects, especially for students and teachers who attend schools in the areas of traffic, roads and industry. This study aims to assess the impacts of NO2 exposure on the health of students in haze and industrial areas from November 2023 to March 2024. Researchers utilized tube-type passive samplers to collect indoor and outdoor NO2 samples, which were subsequently analyzed via spectrophotometry. The results revealed that the weekly mean indoor and outdoor NO2 concentrations in the haze areas (HA1–HA5) ranged between 4.4–29.0 and …

Environmental Exposure To Metals In Children And Their Effects On Autism Spectrum Disorder, Oludesola Ogunesan

All ETDs from UAB

ABSTRACT As scientific understanding of environmental determinants of health advances, growing attention has turned to the role of toxic metal exposures in exacerbating neurodevelopmental outcomes, particularly in vulnerable populations such as children with autism spectrum disorder (ASD). This dissertation investigates the intersection of environmental metal exposure, biomonitoring innovation, and social factors shaping ASD severity in Alabama. Using a multidisciplinary framework, four interrelated studies explore biological, environmental, and participatory dimensions of ASD research and public health. The first study evaluates the utility of Volumetric Absorptive Microsampling (VAMS) for measuring exposure to cadmium (Cd), chromium (Cr), lead (Pb), manganese (Mn), and mercury …

The Influence Of Student Personality Traits On Satisfaction And Success In Online Education In Higher Education: A Systematic Review, Elizabeth G. Hunter, Jayna Niblock, Samantha Barefoot, Jackson Miller, Jason Hughes, Lydia Kite, Edith Scarletto

Journal of Occupational Therapy Education

Online learning is a growing area in occupational therapy education. It is important for faculty to use the modality of online learning to understand the influence of student personality traits, defined as relatively stable characteristics that influence thinking and behavior, on student satisfaction and success in graduate level programs. By understanding the influence of personality traits, faculty can better develop online materials that are flexible enough to support individuals who may have a higher risk of low satisfaction and success. There has been plentiful research in the areas of education and psychology assessing the influence of personality on the online …

Support Needs Of Agrarian Women To Build Household Livelihood Resilience: A Case Study Of The Mekong River Delta, Tran Thi Ngoc Tran

Dissertations

Problem

Rural livelihood faces significant challenges due to the increasing frequency and severity of climate change impacts. However, the development of women’s livelihood resilience remains constrained by gender-blind policies, limited sex-disaggregated data, and a lack of integration of gender-specific needs and priorities in resilience-building interventions. This study aims to address these critical gaps. This study aims at exploring the perceived support needs of rural agrarian women in building household livelihood resilience to climate change. Specifically, it seeks to (1) understand how household livelihood resilience is perceived by rural agrarian women, and (2) identify the support they require to effectively adapt …

They Forgot We Were Seeds: Critical Counter-Narratives Supporting Culturally Informed Community Seed Work, Florentina Rodriguez

Antioch University Dissertations & Theses

This Professional Innovation dissertation utilizes Critical Counter-Narrative both as research methodology to generate narrative reflections and as praxis for liberatory transformation. Through research vignettes adapted from the author’s experience with critical collaborative autoethnographic seed work, this study produced critical counter-narratives aimed at addressing inequities in small-scale seed systems. These counter-narratives were incorporated into curriculum materials synthesized as an educational toolkit for a professional research

sister-project: the new Culturally Informed Community Seed Pledge and Code of Ethics (CICSP/COE). This project seeks to address disparity and extractive practices; outline relational pathways for reciprocity and respecting communities of origin; and provide evaluation metrics …

Practical Application Of Artificial Intelligence For Ecological Image Analysis: Trialling Different Levels Of Taxonomic Classification To Promote Convolutional Neural Network Performance, Amelia E.H. Bridges, Eleanor Cross, Kyran P. Graves, Nils Piechaud, Antony Raymont, Kerry L. Howell

School of Biological and Marine Sciences

The integration of artificial intelligence (AI), particularly convolutional neural networks (CNNs), into ecological research presents new opportunities for the automated analysis of image-based data. This study explores the practical application of CNNs for ecological image analysis by trialling annotation to different levels of taxonomic classification to determine their impact on model performance. We systematically compare various annotation strategies, evaluating their effects on the accuracy of CNNs in ecological contexts; as well as considering the feasibility of manually annotating training data to different levels. We demonstrate that variation in annotations groupings (animal, phylum or morphology) has little impact on model performance, …

Changes In The Spatiotemporal Patterns Of Covid-19 In Japan From 2020 Through 2023, Atsuna Tokumoto, Kazuaki Jindai, Tomoki Nakaya, Mayuko Saito, Clive E Sabel, Hitoshi Oshitani

School of Geography, Earth and Environmental Sciences

BACKGROUND: The spread of coronavirus disease 2019 (COVID-19) varied among countries. The spatiotemporal trends of COVID-19 in Japan remain understudied. Therefore, this study aimed to conduct a detailed investigation of the spatiotemporal evolution of infections/deaths across prefectures in Japan, to analyze the changing patterns of COVID-19 circulation in metropolitan and nonmetropolitan areas.

METHODS: We extracted data from nationally represented open-source data from January 15, 2020, to May 9, 2023, and we calculated the incidence rate of infection and the mortality. Further the ratios were obtained by dividing those rates in prefectural level by those in national level to make them …

Assessing Arbuscular Mycorrhizal Fungal Community Composition And Diversity Across A Land-Use Gradient In Eastern Washington Prairies, Katherine I. Cole

EWU Masters Thesis Collection

Arbuscular mycorrhizal fungi (AMF) are key to healthy, functioning terrestrial ecosystems worldwide. Associating with over 80% of all extant land plants, they play a pivotal role in nutrient cycling, and contribute to overall plant health. Given their significance to terrestrial ecosystems, AMF have a crucial role to play in the successful restoration of Eastern Washington’s native prairies. However, AMF community composition is significantly altered by the commercial agricultural practices used extensively in this region for over 100 years. The Eastern Washington University (EWU) Prairie Restoration Project aims to restore ~120 acres of farmland to native prairie. This research provides insight …