Digital Commons Network^™

The Industrial Hemp Supply Chain Solution, Honovi C. Trudell Sir

Sustainable Supply Chain Management

Realistically solving the United Nations Sustainable Development Goals utilizing an Industrial Hemp supply chain with economy to scale to replace petroleum based plastics and permanently offset carbon emissions produced from other continuously produced hazardous waste.

Stress-Related Phenotypic Differentiation Identified By Motivational Behaviors In Male Mice, Renee A. Brummels

Honors Thesis

Social stress substantially contributes to psychological disorders, including anxiety, depression, and post-traumatic stress disorder. Recognizing these disorders affect millions, it is essential to understand social stress’s impacts on behavior and how these behaviors vary among affected populations. We address these questions through a social defeat/avoidance paradigm, the Stress-Alternatives Model (SAM), which demonstrates defeat (Stay) and avoidance (Escape) responses across species, including fish, rats, hamsters, and mice. Avoidance of social conflict in the SAM is possible by utilizing escape routes for smaller test mice during aggressive interactions. Additionally, measurements of SAM motivational behaviors, like time near and nose pokes into escape …

Examining Components Of The Interpersonal Psychological Theory Of Suicide In A Clinical Sample Of Children With Suicidal Thoughts And Behaviors, Alana Brixner Nunes

Theses and Dissertations

Suicide is the second leading cause of death among 10- to 14-year-olds. Despite a need to identify risk factors for suicide among children, there is limited research on suicidal thoughts and behaviors (STBs) in childhood. The interpersonal psychological theory of suicide (IPTS) suggests that the desire for suicide emerges from perceived burdensomeness and thwarted belongingness and that the transition from suicide ideation (SI) to a suicide attempt (SA) results from an acquired capability for suicide. However, no research has examined whether the IPTS applies to suicidal thoughts and behaviors among children. The present research examined components of the IPTS in …

Heartache In The Heartland: Unraveling The Social Roots Of Deaths Of Despair In Kentucky, Lyndsey K. Blair, Madeline M. Tomlinson, Michele Abee-Biskis, Jessica Hume, Gabri Warren

Journal of Appalachian Health

Introduction: Deaths of despair (DoD), encompassing suicides, drug overdoses, and alcohol-related liver diseases, have emerged as a critical public health crisis in the United States, with their rise particularly pronounced from 1995 to 2013 and exacerbated by the COVID-19 pandemic. Kentucky, grappling with high rates of substance use disorder, poor mental health, and economic hardship, is at the forefront of this issue, particularly in its rural and Appalachian regions.

Purpose: This study explores the social determinants contributing to DoD in Kentucky, focusing on economic and social factors that influence rising rates of suicide, drug overdose, and alcohol-related liver disease. The …

Psychological Interventions For Addressing Suicidal Behaviours Among Lgbtq+ Adolescents Who Experienced Cyberbullying: A Systematic Review, Catherine Galvan

Electronic Theses, Projects, and Dissertations

Background: Suicide is a leading cause of death in the United States, and cyberbullying is often a major reason behind it. Understanding how these two are connected is important for finding ways to help. This chapter will look at how cyberbullying leads to suicide, who is most at risk, and what can be done to prevent it. Objective: The main objective of this research is to synthesize the evidence on the effectiveness of intervention programs for reducing suicidal thoughts and behaviors in adolescents, especially LGBTQ+ adolescents, who have experienced cyberbullying. Method: In this systematic review, we plan to extract information …

Maggot Mass Effect On The Development And Survival Of Forensic Blow Flies, Akomavo Fabrice Gbenonsi

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

Forensic entomology scientists use blow flies' developing patterns to estimate the postmortem interval (PMI). However, larval aggregations produce metabolic heat, resulting in complex microclimates that may change growth timetables. This study investigates how larval density and associated temperature changes affect the development and survival of two forensically essential blow fly species, Lucilia sericata and Calliphora vicina.

This study examined how larval density and associated thermal profiles affect the development of both blow fly species. Using a split-plot design, we tested four larval densities at 25°C and 30°C, with temperature gradients measured via thermocouple at four mass positions three times …

Environmental Influences Of Zero-Sum Thinking And Its Outcome, Edison Sora Tan

Dissertations and Theses Collection (Open Access)

Zero-sum thinking refers to a generalized mentality or a belief that one person’s gain can only come at the expense of another person’s loss. In this research, I argue that people’s zero-sum thinking is, at least in part, influenced by the interacting characteristics of the environment, namely, resource scarcity and population density. This is because resource scarcity highlights people’s resource insecurity, particularly when population density accentuates potential competition for finite resources. Consequently, zero-sum thinking reduces trust and cooperation as people reduce their commitment to potentially risky social investments. Analysis with data from a large-scale field study and ecological data provided …

Investigating The Spatial Distribution Of Food Insecurity And Its Associated Factors Across Mississippi Counties, Elizabeth C. Swindell, Riley Morgan, Dylan Barker, Ruaa Al Juboori

Journal of Public Health in the Deep South

Background: Mississippi has one of the highest rates of food insecurity in the United States, with many counties experiencing significant disparities in access to healthy food. Therefore, understanding the spatial distribution of these disparities is essential for developing targeted interventions.

Purpose: This study aims to investigate the spatial distribution of food insecurity and its associated social and health factors across Mississippi counties to identify areas in need of intervention.

Methods: Cross sectional study was conducted using publicly available datasets to examine food insecurity and its associated factors at the county level. Pearson correlations and bivariate Moran’s I were used to …

Prenatal Exposure To Pm2.5 Concentration And Risk Of Preterm Birth In New Mexico; A Seasonal Pattern And Spatio-Temporal Modeling., Onyedikachi J. Okeke

Mathematics & Statistics ETDs

This study investigates the association between prenatal PM2.5 exposure and preterm birth risk in New Mexico (2014–2021). Using descriptive statistics, time series models, and spatial analyses, findings show an average preterm birth rate of 14.87 per 1,000 live births, with moderate correlation (r = 0.727) between PM2.5 levels and very preterm births. While traditional models revealed no significant global effect, spatial methods such as Geographically Weighted Regression (GWR) and Multiscale GWR uncovered strong spatial heterogeneity. PM2.5 effects varied by county (coefficients: -0.00154 to 0.00150), with clustering evident in 2018–2019 (Moran’s I = 0.155–0.174). Results highlight the limitations of global models …

Comparative Analyses Of Neurorehabilitation Regulations And Health Equity In The U.S., Switzerland, And China: Implications For Universal Health Coverage, Linyue Lu

Switzerland: Global Health and Development Policy

Introduction: As populations age and the burden of neurological conditions rises, equitable access to neurorehabilitation has emerged as a critical yet under-addressed component of Universal Health Coverage (UHC). This comparative study examines how healthcare structures in the United States, Switzerland, and China shape neurorehabilitation equity. Methods: This analysis combines semi-structured interviews with seven healthcare experts (neurorehabilitation clinicians, health economists, and scholars) and a systematic review of peer-reviewed literature, policy documents, and demographic data. Results: In the U.S., fragmented insurance models and high out-of-pocket costs disproportionately limit access for low-income and rural populations. Switzerland’s universal coverage masks the inequities driven by …

Urban Beavers At The Crossroads: How Ecological Knowledge, Sociodemographic, And Spatial Context Shape Public Perception And Coexistence Preferences, Matthew Guziejka

Dissertations and Theses

Urban beavers demonstrate synurbization by adapting to urban environments, offering ecological benefits such as biodiversity enhancement and flood mitigation, while also occasionally conflicting with infrastructure. This study examines how ecological knowledge, sociodemographics, and spatial context influence public perceptions and management preferences for urban beavers in the Tualatin River watershed, Oregon.

A voluntary survey of 176 participants from peri-urban areas assessed demographic characteristics, ecological knowledge, and attitudes toward management approaches. Spatial factors, such as proximity to watercourses and green spaces, were also analyzed. Logistic regression analyses were used to explore relationships between these factors and management preferences. Political orientation was significantly …

Volume 29-2 Complete Issue, C. Nicholas Raphael

The Geographical Bulletin

Volume 29-2 Complete Issue

Variation In Grassland Biomass: A Spatial And Temporal Perspective, Stephen J. Walsh

The Geographical Bulletin

During a sampling period extending from May 07 through August 13, 1985, plant biomass, soil temperature, soil moisture, and other selected biophysical variables were collected on a weekly basis at 12 sample sites distributed along a 200 km east-west trending transect in west-central Oklahoma. Correlation coefficients showed temporal and spatial relationships between dry mean biomass and the relative location of sample sites along the transect, Universal Transverse Mercator coordinate location of each sample site, sample site elevation, and sample week (-0.43, +0.43, -0.54, and +0.42, respectively). A multiple regression analysis showed that 84.5 percent of the variation in plant biomass …

Farm Chemicals As Indicators Of Sediment Sources In Iowa Rivers, Edward N. Nealson, George P. Malanson

The Geographical Bulletin

Determination of the source of sediment in rivers and streams is important in order to effectively implement a program to reduce its concentration. This project uses agricultural chemicals as indicators of current sources of sediment from farm fields in the Cedar River, Iowa watershed. We hypothesized that the relations of sediment, nitrogen, and phosphorous yields to precipitation would indicate whether sediment originated from erosion of fields or from channel bank erosion of floodplains. The changes in sediment, nitrate, and phosphorus in the channel in response to rainfall events were determined. In simple regressions, all three variables have similar slopes when …

Use Of E-Cigarettes And Other Substances And Related Psychiatric Symptoms In Undergraduate Students, Grant L. Saba

Senior Honors Theses and Projects

This study evaluated the role that use of alcohol and e-cigarettes had in the development of dependence and demand of each other, along with symptoms of depression and anxiety in undergraduate college students. It tested four hypotheses: (1) that these symptoms are related to more frequent e-cigarette use, (2) they are related to problematic alcohol dependence, (3) alcohol demand will be higher in e-cigarette users, and (4) e-cigarette demand will be higher in problematic drinkers. 173 undergraduate students completed self-report inventories describing their alcohol dependence, e-cigarette dependence, depression, and anxiety, along with completing two hypothetical purchase tasks where they were …

Mucking Up Public Health: A Geospatial Analysis Of Agricultural Sludge Application And Cancer Prevalence In Maine, Sarah A. Bassett

Honors Theses

This study investigates the impact of per- and polyfluoroalkyl substances (PFAS) on cancer prevalence throughout Maine. The main contribution of this project is the database constructed to examine cancer rates at a novel aggregation area: watersheds. By using a watershed as the aggregation area, this study gains insight into the threat that spreading sludge as fertilizer on agricultural fields poses to human health through groundwater pathways. Using geospatial analysis and an ordinary least squares regression model, this study estimates the effect of the presence of PFAS in a watershed from 2017 to 2021, in addition to estimating the impact of …

Anthropogenic Prairies Of The Southern Salish Sea: Ethnographic And Archaeological Landscapes, South Puget Sound, Washington., Jamey D. Taylor Ms.

All Graduate Projects

This project report has been completed to fulfill requirements of the Master of Applied Science of Cultural and Environmental Resource Management (MAS-CERM) at Central Washington University. The project models the cultural landscapes of the southern Salish Sea. These landscapes include anthropogenic prairies, travel routes (trails and roads), salmon runs, and archaeological sites. This study maps the historic boundaries of prairies and recent data sets for key plant species. The locations of prairies and indicator species are overlaid with ethnohistoric settlements, archaeological site locations, and trail systems. The spatial correlations of these data are used to interpret the prominence of anthropogenic …

The Legacy Of Housing Discrimination: Asthma Disparities In California Cities, Taylor Daetz

CMC Senior Theses

This thesis examines the effect of discriminatory housing policy on current asthma rates in California cities. This study uses boundary design and propensity score methodologies to analyze asthma-related emergency department visits in census tracts with corresponding appraisal grades from the Home Owners’ Loan Corporation maps. The results indicate significantly higher asthma burdens in grade D (redlined) census tracts compared to grade C tracts, even when controlling for present-day pollution concentrations, with historically redlined tracts experiencing an average of 26.88 additional emergency department visits per 10,000 residents. The analysis further reveals disparities between grade C and B neighborhoods, suggesting that even …

The New Urbanism In New York City: A Case Study Comparing Battery Park City And Alphabet City, Lena Farley

Pomona Senior Theses

This thesis examines two Manhattan neighborhoods, Battery Park City and Alphabet City, through the lens of New Urbanism—an urban planning approach developed in the 1990s. New Urbanist principles prioritize walkability, connectivity, mixed-use development, diversity, varied housing options, architectural quality, green transportation, sustainability, and accessible green spaces. While Battery Park City represents a top-down, master-planned New Urbanist neighborhood based on a 1979 plan, Alphabet City emerged from the 1811 Manhattan grid with significant community-driven design, notably through community gardens and grassroots initiatives. Using a mixed-methods approach including residential surveys, qualitative, and quantitative analyses, this research investigates how these neighborhoods embody New …

Scientific Writing: A Guide From Data To Draft, Kristin M. Klucevsek

Open Education Materials

Textbook for ENGL302W (Scientific Writing)

CC BY-NC-SA (2025)

Remote Education And Well-Being In Academia During (Post) Pandemic Times: Insights From Business Schools In V4 Countries, Agnieszka Brzozowska, Jana Kajanová, Michał Ludek, Kamila Matysová, Magdaléna Musilová, Norbert Sipos, Brigitta Szabó-Bálint, Aleksandra Wąsowska, Timea Venczel-Szakó, Jitka Volfová

Studia i Materiały Wydział Zarządzania Uniwersytet Warszawski

Purpose: The study aims to explore the dynamics shaping online education processes in the Visegrad countries (Poland, Czech Republic, Slovakia, and Hungary) during the transition to remote learning.

Design/methodology/approach: A qualitative study was conducted among 40 university students and 40 academic teachers from the four countries. The data analysis focused on identifying recurring patterns and challenges in online teaching and learning experiences.

Findings: The research revealed two negative cycles influencing online education. The first, called the cycle of declining engagement, shows how decreasing student engagement led to lower lecturer involvement, which in turn further reduced students’ motivation. The …

Donald Griffin, Cognitive Ethology, And Animal Life Histories, Walter Veit

Animal Sentience

Carolyn Ristau offers a stellar investigative biography of Donald Redfield Griffin and his influence on the science and philosophy of animal minds. This commentary focuses on his aim to study animal minds through an ethological lens—that is, by examining the evolved, adaptive functions of mental capacities and consciousness in natural environments, rather than confining research to controlled laboratory settings. I argue that, far from being romantic, this approach can be firmly grounded in modern life history theory.

Impacts Of Southern Pine Beetle (Dendroctonus Frontalis Zimmerman) On Loblolly Pine (Pinus Taeda L.) Canopy And Water Use In The Homochitto National Forest, Mississippi, Usa, Sasha Goodnow, Yun Yang, Hui Liu, Ashley Schulz

Endeavors: Mississippi State Undergraduate Research Journal

Abiotic and biotic forest disturbances can have many impacts to forest ecosystem services, including to forest water use. Studies on impacts to forest evapotranspiration have been conducted on the mountain pine beetle (Dendroctonus ponderosae) in western North America, but not on the southern pine beetle (Dendroctonus frontalis), which is a native pest of loblolly pine (Pinus taeda) and shortleaf pine (Pinus echinata), in the southeastern United States. Stressed pine trees produce pheromones that attract southern pine beetles and, with enough stressed trees, beetle populations can quickly grow to epidemic levels and attack healthy trees, which results in widespread tree mortality. …

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 …

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 …

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 …

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 …

Pygoscelis Penguins Prefer Different Oceanographic And Terrestrial Habitats During The Austral Summer, Katherine L. Gallagher, Rachel Herman, Katherine Walton, Michael S. Dinniman, Heather J. Lynch

OES Faculty Publications

Pygoscelis penguins interact with both terrestrial and marine environments, especially during the austral summer when they raise their chicks. Accessible ice-free ground spaces serve as locations for penguins to build colonies and successfully raise chicks while the surrounding marine environment serves as the foraging grounds for adult birds. Penguins must be able to navigate through the waters around their colonies to forage for Antarctic krill (Euphausia superba), their primary prey during the austral summer. Krill, whose distributions are driven partially by the surrounding physics and partially by their behaviors, must also be plentiful in the waters near the …