Digital Commons Network^™

Carceral Geographies Of Disinvestment: Mapping Police Surveillance And Food Insecurity In Tennessee, Lina Habba, Ridha Nazir, Natalie E. Freeman Phd

DO Research Day

Research Aims: •Examine the association between county-level jail incarceration (a proxy for police surveillance) and food insecurity, limited access to healthy foods, and overall food environment quality across Tennessee counties.   •Determine whether this association persists after adjustment for median household income, high school completion, and racial composition.

Impact Of Environmental Stressors On Pinniped Tags: Progress Toward Standardized Testing Protocol, Brodie Lyons, Deeksha Garige, Nathan Vasquez, Sean Shermer, Dr. Frank E. Cappuccio, Dr. Lonny Grafman, Dr. Dawn Goley

IdeaFest 2026

No abstract provided.

Exploring The Significance Of Kenya's Indigenous And Emerging Blue Foods For Sustainable Aquaculture Development. A Review, Jonathan Munguti, Mavindu Muthoka, Domitila Kyule, Esther Magondu, Kevin Obiero, Jimmy Mboya, Menaga Meenakshisundaram, Tanga M. Chrysantus, Gerald Kwikiriza, Francis K. Njonge

All Peer-Reviewed Publications

Kenya's aquaculture sector is at a pivotal stage, transitioning from a historical reliance on Nile tilapia and African catfish toward a more diversified production portfolio that integrates indigenous and emerging freshwater and marine species. This shift is increasingly recognized as essential to enhance climate resilience, food security, and ecosystem health. This systematic review synthesizes more than two decades (2000 to 31st January, 2026) of peer-reviewed literature to evaluate the biological suitability, culture performance, and socio-ecological roles of underutilized native taxa, including Ningu (Labeo victorianus), Jipe tilapia (Oreochromis jipe), freshwater prawns (Macrobrachium spp.), rabbitfish (Siganus sutor), marine-acclimatized Nile tilapia, mud crab …

Covid-19, Politicization, And Vaccine Hesitancy: A Spatiotemporal Analysis Of Non-Medical Exemptions In Minnesota, 2014-2024, Benjamin Arnold

Geography Honors Projects

Vaccination rates have declined due to the growing hesitancy by many parents to vaccinate their children, signified by an increasing amount of non-medical exemptions. While there has been previous spatial analysis of exemption patterns as a threat to herd immunity, there has not been much post-COVID. This analysis provides a modern analysis of changing exemption clustering in Minnesota, while also considering the impact of public health being increasingly politicized. We used kindergarten vaccination data for 1475 elementary schools to analyze the evolution of clustering and predictors of NMEs across space and time in Minnesota, from 2014 to 2024.

Early Immune Dysregulation In Mtb/Siv Co-Infection Resists Cart Treatment At The Single-Cell Level, Riti Sharan, Yi Zou, Zhao Lai, Korri Weldon, Todd Bradley, Xi Luo, Hulin Wu, Shabaana A Khader, Deepak Kaushal

Faculty, Staff and Student Publications

Using single-cell transcriptomics of bronchoalveolar lavage cells from Mtb/SIV co-infected rhesus macaques on cART, we reveal profound immune dysregulation during early SIV co-infection of latent tuberculosis. SIV induces a sharp decline in CD4+ T cells, NK, and NKT cells, with incomplete recovery of Mtb-specific TH1 effector responses despite viral suppression. Instead, a persistent TH17-skewed environment emerges, alongside sustained myeloid inflammation driven by Type I interferon signaling and pro-inflammatory regulators such as KLF6 and NFKB1. Ligand-receptor network analyses demonstrate expanded CD4+ T cell-macrophage crosstalk and loss of immune homeostasis that cART fails to fully restore. These findings expose …

Is Hanpp A Stressor Of Bird Species Richness?, Kaeli Mueller, Gustavo Ovando-Montejo, Christopher Lant

Environment and Society Student Research

One of the leading drivers of biodiversity loss is land use change due to the ever-increasing demand for food, livestock feed, biofiber, and biofuel. The concept of human appropriation of net primary production (HANPP) was developed to measure the impact that humans have on the environment by accounting for biomass removed from the environment in the form of crops, timber, and grazing. The species–energy hypothesis is an established ecological hypothesis postulating that greater species diversity is correlated with higher levels of energy from plant productivity; this can be measured as net primary production minus harvested HANPP or NPP_ecological. …

Integrating Georeferencing And Fire Anatomy Modeling In Canyon Fire Experiments Using Thermal Uav Remote Sensing, Xiangyu Ren, Bo Yang, Alexander I. Filkov, Katherine M. Wilkin, C. David Benterou, Owen Hussey, Craig B. Clements

Faculty Research, Scholarly, and Creative Activity

Background: Wildfires profoundly impact ecosystems and human health, making them a critical research focus. Drone-mounted Thermal Infrared (TIR) sensors are widely used for active fire monitoring due to their ability to penetrate smoke and capture real-time fire dynamics. Aims: This study addresses the challenges of georeferencing TIR data accurately, caused by limited fire anatomy modeling, imprecise georeferencing, the coarse resolution of TIR imagery and the dynamic nature of fire behavior. Methods: We collected a one-hour TIR dataset capturing a fast-moving controlled fire in a California canyon, US, alongside auxiliary data of multispectral and in situ meteorological observations. We developed an …

Olli Fall 2026 Catalog, Toniann Leavitt

Osher Lifelong Learning Institute

No abstract provided.

Herbaceous Plants In Forest Ecosystems: One Hundred Fundamental And Applied Questions, Harikrishnan Venugopalan Nair Radhamoni, Michelle Elise Spicer, Marlyse C. Duguid, Liza S. Comita, Emilio Bruna, Andrew J. Andrade, Julia I. Burton

Michigan Tech Publications

Aims: Herbaceous plants (herbs) found in the understory of forests contribute substantially to the biodiversity of these ecosystems, as well as being important socio-culturally, economically, and for advancing ecological theory. However, the ecology of herbs is less well understood compared with woody plants, despite evidence that herbs are physiologically and ecologically different. Similarly, herb research has focused on north temperate forests, with less information from forests in the tropics and Global South. Understanding this knowledge gap, and recognizing the critical importance of expanding and streamlining the scope of research on forest herbs, we set out to identify 100 fundamental and …

Just Opt For Caesarean Section And Pick The Birthdate': A Qualitative Study Exploring Women's Delivery Preferences After Caesarean Section In Urban Tanzania, Daudi Gidion, Columba Mbekenga, Miriam Mgonja, Marleen Temmerman, Muzdalfat Abeid

Obstetrics and Gynaecology, East Africa

Objectives To explore perspectives, preferences and decision-making regarding mode of delivery after a previous caesarean section among women in urban Tanzania.

Design A descriptive qualitative study using semi-structured in-depth interviews. Data were analysed using thematic analysis.

Setting A private tertiary hospital in Dar es Salaam, Tanzania.

Participants 11 women with one previous caesarean section who delivered at the study site were interviewed on the third day after delivery. Participants were purposively sampled to include both modes of delivery: five women underwent repeat caesarean section and six attempted a trial of labour after caesarean (TOLAC).

Results Thematic analysis identified four key …

Antioxidant Therapy Reverses Hepatotoxicity Induced By Microcystin-Lr In A Cellular Model Of Metabolic Dysfunction-Associated Steatotic Liver Disease (Masld), Apurva Lad, Jason Kindle, Prajwal Hegde, Gabriel G. Kleer, Andrew L. Kleinhenz, Johnna A. Birbeck, Judy Westrick, Nicholas J. Peraino, Terry D. Hinds, Neeraja Purandare, Andrew M. Fribley, Steven T. Haller, David J. Kennedy

Markey Cancer Center Faculty Publications

Microcystin-LR (MC-LR) is a potent hepatotoxin that has been shown to cause liver damage even at doses lower than the established Low Observable Adverse Effect Level (LOAEL) of 200 μg/kg in animal models. We have previously observed that low-dose exposure to MC-LR in animals with diet-induced Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) and subsequent treatment with antioxidants like N-acetylcysteine (NAC) and the Na⁺/K⁺ ATPase-Src kinase inhibitor pNaKtide significantly alleviated hepatic infiltration of immune cells, downregulated markers of inflammation and hepatotoxicity, increased the breakdown of the toxin molecule, and restored phase I and II drug metabolism pathways, including …

Exploring Racial And Ethnic Diversity Trajectories And Diabetes Prevalence In The United States, Jiue-An Yang, Calvin P Tribby, Anna Dmowska, Qian Xiao, Marta M Jankowska

Faculty, Staff and Student Publications

This study investigates whether long-term changes in neighborhood racial and ethnic diversity are associated with adult diabetes prevalence across the contiguous United States. We calculated diversity indexes for US census tracts (n = 72,033) using decennial census data from 1990 to 2020. Five diversity trajectory clusters were identified using K-means clustering. Diabetes prevalence in 2019 was obtained from the CDC's PLACES dataset. Linear mixed models (LMMs) assessed global associations between diversity trajectories and diabetes prevalence, adjusting for age, sex, poverty, marital status, and public insurance. Geographically weighted regression (GWR) examined local variations in these associations. Compared to the reference group …

Climate-Driven Stochastic Modelling Of Crimean-Congo Haemorrhagic Fever Transmission In Uganda, P. G. Kpatchana, J. Aduda, K. M. Agboka

All Peer-Reviewed Publications

Crimean-Congo haemorrhagic fever (CCHF) is a climate-sensitive tick-borne zoonosis that remains a significant public health concern in Uganda, where temperature and vapour pressure deficit influence tick ecology and consequently disease transmission. This study aimed to develop and analyse a climate-driven stochastic model for CCHF transmission among ticks, livestock, and humans under environmental variability in Uganda. A compartmental transmission model was formulated and extended into a stochastic differential equation framework by incorporating multiplicative environmental noise. Climate-dependent tick recruitment, development, and mortality were parameterized using district-level temperature and vapour pressure deficit data to capture spatial heterogeneity in transmission risk. Theoretical analyses based …

Geographic Range And Body Size Influence Abundance Patterns In Reef Fishes, M. F. Maxwell, D. R. Barneche, R. Divieso, S. R. Floeter, O. J. Luiz, A. L. Luza, M. R. Pie, A. C. Siqueira, M. G. Bender

Research outputs 2022 to 2026

Aim: Understanding how body size and geographic range size influence species abundance is central to macroecology. Here, we characterized these relationships for reef fishes, the world's most diverse vertebrate group, across global and regional scales. Location: Global tropical and subtropical reefs. Time Period: Current. Major Taxa Studied: Reef-associated fishes. Methods: We compiled a comprehensive dataset on abundance, body size and geographic range size for 828 reef fish species. Abundance was measured as density (ind/m²) using transect-based observational data. To analyse global-scale patterns, we applied Bayesian quantile regressions and Bayesian phylogenetic regressions to account for phylogenetic relatedness. We also …

Pediatric Trauma Trends Before And After Recreational Cannabis Legalization In Nevada: A Retrospective Repeated Cross-Sectional Study, Jenna Serr, Vidhani Goel, Roberto Sagaribay, Kavita Batra, Ami P. Shah

School of Medicine Faculty Research

Background: Cannabis legalization has raised concerns regarding its potential influence on injury patterns, particularly among children. However, evidence on pediatric trauma remains limited. Objective: To examine trends in pediatric trauma incidence, injury mechanisms, healthcare utilization, and socioeconomic characteristics before and after recreational cannabis legalization in Nevada. Methods: A retrospective repeated cross-sectional study of trauma registry data was conducted using pediatric trauma activations recorded between 2013 and 2023. Incidence rates per 100,000 population were calculated using census data. Pre-legalization (2013–2016) and post-legalization (2017–2023) periods were compared using incidence rate ratios (IRRs) and bivariate tests. Socioeconomic status was assessed using the Distressed …

Bio 340 Final Project: Rural Population Structure And Food Production Interact To Shape Global Undernourishment, Ava Ripanti

Biology Student Scholarship

Ava Ripanti - Environmental Biology '27

Undernourishment remains a major global public health challenge, reflecting the proportion of a population lacking sufficient dietary energy intake. While food availability is central to food security, undernourishment is also shaped by structural and socioeconomic factors such as population distribution and access to resources. Although rural populations are closely tied to agriculture, they often experience higher food insecurity due to limited infrastructure, market access, and healthcare. Prior research emphasizes that broader determinants, particularly inequality and development, are stronger predictors of undernourishment than agricultural output alone, that food insecurity exists in both rural and urban …

Great Graminoids! Quantifying Vegetation On Roan’S Western Balds Over The Last 80 Years (1936, 1956, 2016), James T. Donaldson

Faculty Open Access Works

PowerPoint originally presented at Friends of Roan Mountain Winter Naturalists' Rally 11 Feb. 2017.

Grant funding from Friends of Roan Mountain for resampling historic transects from Carvers Gap to Grassy Ridge. Revised 2021, 2022, & 2023 (technical features and diversity); edited for clarity 2026 (for written rather than oral presentation & added references slide).

Gaining Mussel: Evaluating Reintroduction Success Of Native Freshwater Mussels In Nebraska And Eastern Wyoming, Travis A. Moore

School of Natural Resources: Dissertations, Theses, and Student Research

Freshwater mussels are one of the most imperiled groups of organisms in North America, with over two-thirds of species considered threatened, endangered, or of special concern. These long-lived bivalves are essential to stream ecosystems, acting as filter feeders that improve water quality and as indicators of aquatic health. In Nebraska and Wyoming, native mussel populations have declined sharply due to habitat modification, pollution, and reduced connectivity. Two species of particular concern are the Plain Pocketbook Lampsilis cardium, listed as Tier I at-risk in Nebraska, and the Fatmucket Lampsilis siliquoidea, a Tier II at-risk species. In response, state agencies …

Validation Of A Real-Time Pcr Laboratory Developed Test For The Detection Of Pneumocystis Jirovecii In Bronchoalveolar Lavage Samples, Caitlyn Moon

Honors Scholar Theses

Pneumocystis jirovecii is an opportunistic, host-obligate fungal pathogen responsible for causing P. jirovecii pneumonia (PJP) in humans. PJP is treated with trimethoprim-sulfamethoxazole (TMP-SMX), a strong broad-spectrum antibiotic that carries risk of renal and hepatotoxicity. Therefore, rapid diagnosis or exclusion of PJP is crucial to ensure PJP-positive patients receive effective treatment and PJP-negative patients avoid unnecessary antibiotics. Unlike most microorganisms, P. jirovecii cannot be cultured, presenting complications for the typical methods of diagnosing fungal pathogens. Historically, the gold standard for diagnosis was direct microscopic examination with stains such as methenamine silver and calcofluor white, but this diagnostic technique requires highly skilled …

Ecological Insights And Management Implications Of The Global Migratory Connectivity Of Green Turtles, Jaime Restrepo, Dina Nisthar, Harris Wei-Khang Heng, Lily K. Bentley, Corrie Curtice, Sarah Deland, Ei Fujioka, Patrick N. Halpin, Sarah K. Poulin, Roldán A. Valverde

School of Earth, Environmental, & Marine Sciences Faculty Publications

Aim

Green turtles are a widely distributed and highly migratory species; despite extensive data on their movement, there is no species-specific global synthesis on the subject. Based on three decades of published literature and building on previous global analyses, we developed a global network model of migratory connectivity for green turtles to better understand their spatial biology.

Location

Global.

Time Period

1990–2022.

Major Taxa Studied

Green Sea Turtle (Chelonia mydas).

Methods

We conducted a structured literature review extracting georeferenced information on the movement of green turtles from 1990 to 2022, aggregating this information into a single connectivity model, …

Man In The Medium: A Historical Examination Of The Life And Work Of Roger Ailes In The American Political Arena, Korey A. Bowles

Doctoral Dissertations and Projects

Roger Ailes is one of the most prolific figures in American politics and media of the last 60 or so years. Despite his many contributions and achievements, he remains relatively unknown among the public and underrepresented in the field of communication research. This study uses a critical historical approach to examine the life and influence of Ailes on the American political and media landscapes through his work with Presidents Nixon, Reagan, Bush, and numerous other key political figures, as well as the founding of Fox News Channel. In doing so, this study provides insight into Ailes’ perspective on the ecology …

Swosu Research And Scholarly Activity Fair 2026, Swosu Office Of Sponsored Programs

SWOSU Research and Scholarly Activity Fair Programs

On behalf of the University Research and Scholarly Activity Committee (URSAC) and the Office of Sponsored Programs (OSP) at Southwestern Oklahoma State University, we are pleased to welcome you to the Thirty-Fourth SWOSU Research and Scholarly Activity Fair.

Coral Reef Hydrodynamics: A Critical Review Of Roughness Indices And Their Characteristic Complexity, Faisal Karim, N. A. K. Nandasena, Lujain Kuruvachalil, Mohamed M. Mohamed, James P. Terry

All Works

This study provides a systematic review of hydrodynamic roughness in coral reef systems, focusing on drag coefficient (Cd), Manning's roughness coefficient (n), friction factor, and rugosity metrics. A structured bibliometric analysis was conducted using Scopus and Web of Science databases, including field measurements, laboratory flume experiments, and numerical studies validated with physical data. Results show substantial variability in roughness parameters across scales and environments. Reported drag coefficients range from 0.002 for smooth sandy beds to values exceeding 7.0 in complex mangrove-reef systems, with typical reef crest values between 0.05 and 0.30. Manning's n varies from 0.01 in smooth channels to …

Identifying And Prioritizing Habitat For Ring-Necked Pheasants (Phasianus Colchicus) Conservation In Nebraska, Allison Joy Barg

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

As competing demands grow on agricultural landscapes, optimizing land use for economic and environmental benefit is crucial. A key way to improve conservation outcomes on working lands is to strategically target conservation efforts to land that is likely to provide the maximum benefit; however, this approach requires sufficient data to predict the outcomes of varying management decisions. Ring-necked pheasants are a recreationally and economically valuable species that were historically abundant in the agricultural regions of North America. The intensification and simplification of farm systems over the last half century have caused pheasant populations to decline, and while conservation programs such …

The Experiences Of Systemic Invalidation In Chronic Pain Care Among Socioeconomically Disadvantaged Individuals: An Interpretative Phenomenological Study, Claira Moro, Stuart Spicer, Charley Hobson-Merrett

Peninsula Medical School

This study explored the lived experiences of individuals from socioeconomically disadvantaged communities living with chronic pain and prescribed pain-relief medication. Using Interpretative Phenomenological Analysis, eight participants were recruited from a single primary care network in England. Two Group Experiential Themes were developed. This paper reports one: From Dismissed to Disengaged: the trauma of seeking help, with three sub-themes: (1) “Being fobbed off” – dismissal across healthcare and benefit systems; (2) “It just seemed horrible to me, to take it off me” – pain relief as withdrawn, stigmatised, or conditional; and (3) “Do I want to poke the bear?” – disengagement …

Geographic Variation In Adrd Prevalence And Mortality And Their Association With Social Vulnerability Across Us Counties: A Spatial Epidemiological Analysis Using Norc And Cdc Svi Data, Dean Kyne

Sociology Faculty Publications

Introduction: Geographic disparities in Alzheimer’s disease and related dementias (ADRDs) remain insufficiently understood at the national scale, limiting efforts to address inequities in dementia burden across USA communities. This study examined county-level variation in ADRD prevalence and mortality and evaluates the association between social vulnerability and these outcomes.

Methods: This cross-sectional ecological study analyzes 2020 county-level ADRD prevalence and all-cause mortality among Medicare beneficiaries from the NORC Dementia DataHub. The analytic sample included 3,108 USA counties in the contiguous USA and the District of Columbia. ADRD outcomes included (1) prevalence of highly likely ADRD and (2) prevalence of all determinations, …

Space-Time Analysis Of Burgeoning Us Atrial Septal Defect Rates Driven By Cannabis, Albert Stuart Reece, Kenneth Hulse

Research outputs 2022 to 2026

Atrial septal defect (ASD) has become increasingly common in the USA and now affects 1 in 11.3 children in some places, but space–time analysis has not been applied to this emerging trend. ASD rate (ASDR) data were obtained from the National Birth Defects Prevention Network 2003–2020. Substance (cigarettes, alcohol, cannabis, analgesics, cocaine) use data were obtained from the National Survey of Drug Use and Health. Income data were obtained from the US Census. Analysis was limited to the Non-Hispanic White population by technical factors. Time-sequential univariate and bivariate maps were prepared for both covariates and outcomes and their combinations. Spatial …

Impact Of Cannabis And Cannabis Legalization On Us Atrial Septal Defect Rates, Albert Stuart Reece, Hulse

Research outputs 2022 to 2026

Atrial septal defect (ASD) affects 1:11.3 children in some US states; however, the antecedents of these trends are yet to be identified. A total of 1882 ASD rates (ASDRs) for 2003–2020 were sourced from the National Birth Defects Prevention Network reports. A total of 406,893 ASDs are reported. Substance (cigarettes, binge alcohol, cannabis, cannabinoids, analgesics, cocaine) exposure data were taken from the National Survey of Drug Use and Health. Income and ethnicity data were derived from the US Census. Adjustment was performed by mixed effects, survey and generalized additive regression. Causal analysis was by inverse probability weighting and E-values. Data …

Advancing Environmental Justice Through Chemical Education: Perspective From New Orleans’ Water And Air Quality Challenges, Ja’Lynn Keller, Sita Aggarwal, Rami A. Al-Horani, Morewell Gasseller, Navneet Goyal

Faculty and Staff Publications

New Orleans, Louisiana, faces profound environmental vulnerabilities arising from the convergence of industrial pollution, urban runoff, and climate change–driven weather events. This paper examines systemic challenges affecting water and air quality in the region, with particular focus on low-income and marginalized communities disproportionately burdened by environmental degradation. Drawing on educational and community-based monitoring initiatives at Xavier University of Louisiana and Southeastern Louisiana University, we highlight the integration of student learning with real-time data collection of contaminants such as fecal coliforms, heavy metals, hydrocarbons, and polycyclic aromatic hydrocarbons (PAHs). The aftermath of Hurricane Katrina revealed significant fecal contamination in sediment layers, …

Fare-Free Public Transportation: A Systematic Review Of Outcomes, Joseph S. Lightner, Nancy Ziegler, Tyler Prochnow, Sammi Ford, Jordan A. Carlson, Mallory Moon, Jannette Berkley-Patton, Steven Chesnut, Amanda Grimes

Manuscripts, Articles, Book Chapters and Other Papers

Introduction

Methods