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The Mundo I Imagine, Angeliky Castrellon Jan 2026

The Mundo I Imagine, Angeliky Castrellon

Theses and Dissertations

My work investigates the human experience of belonging and how the force of displacement alters the perception of one's present and enables dissociation. After leaving my home and starting a new life overseas, coming back never felt the same; I couldn’t find peace and comfort anywhere. This made me create an imaginary world called “Mundo.” Shelters for the souls of the displaced, looking for comfort. As I became a graduate student in the Craft/Materials Studies department, my perspective widened, and my work itself answered a question for me: I want to be comfortable everywhere; how can my home be everywhere …


Optimizing Markov Chain Monte Carlo Algorithms For Fairness, Scalability, And Interpretability In Electoral Redistricting, Madhukara Kekulandara Jan 2026

Optimizing Markov Chain Monte Carlo Algorithms For Fairness, Scalability, And Interpretability In Electoral Redistricting, Madhukara Kekulandara

Open Access Dissertations

Gerrymandering undermines democratic representation by manipulating electoral district boundaries to dilute the political influence of targeted communities. While Markov Chain Monte Carlo (MCMC) based redistricting algorithms have become a standard computational tool for detecting partisan gerrymandering, their effectiveness in addressing racial gerrymandering and their scalability on modern computing systems remain limited. This dissertation advances the theory and practice of algorithmic redistricting by optimizing MCMC-based approaches across three dimensions: racial fairness, computational efficiency, and interpretability.

First, this work introduces the Partial Map MCMC algorithm, a novel redistricting method designed specifically to address racial gerrymandering under the legal framework of Section 2 …


Firearms And Fora: Constructing Public Carry Doctrine, Timothy Zick Jan 2026

Firearms And Fora: Constructing Public Carry Doctrine, Timothy Zick

Faculty Publications

Where can a person lawfully carry firearms in public? Under what conditions can they do so? Now that the Supreme Court has formally recognized a Second Amendment right to public carry, these are among the most important unresolved questions regarding the right to bear arms. The Second Amendment’s public carry doctrine is in its infancy. How the doctrine develops will have a profound impact on the exercise of Second Amendment rights in public places and on the public square. Integrating a new constitutional right into the public square is not a novel problem. After the Supreme Court recognized First Amendment …


Tulsa V. O’Brien: A City Adds To The Battle Over Jurisdiction In Indian Country, Fatima D. Jaime Jan 2026

Tulsa V. O’Brien: A City Adds To The Battle Over Jurisdiction In Indian Country, Fatima D. Jaime

American Indian Law Review

No abstract provided.


The Backside Of The Pond, Wendy Murphy Jan 2026

The Backside Of The Pond, Wendy Murphy

Dartmouth College Master’s Theses

The Backside of the Pond is a collection of personal essays that braid lived experiences with academic inquiry, exploring a variety of themes and the transformative power of reflective writing. Anchored in the geography of Occom Pond, on the northside of the Dartmouth College campus, the collection uses this familiar landscape as both refuge and metaphor.

The thesis also examines the ethics and craft of writing creative nonfiction, considering the tensions between emotional truth and the fallibility of memory. The essays trace moments of clarity, frustration, humor, grief, and renewal. Together, they offer an inquiry into how humans create meaning: …


Attribution Post ‘Aura’ Loss: A Qualitative Discourse Analysis Of The Nigerian Scam Label And Fraud Attribution, Emaediong Akpan Jan 2026

Attribution Post ‘Aura’ Loss: A Qualitative Discourse Analysis Of The Nigerian Scam Label And Fraud Attribution, Emaediong Akpan

International Journal of Cybersecurity Intelligence & Cybercrime

In this essay, I employ qualitative discourse analysis of eleven purposively selected literature to examine how “Nigerian scam” became an established yet detached signifier of advance-fee fraud in global discourse. I do not treat this association as a reflection of offender identity or national inclination. Instead, the analysis traces how attribution is produced through representational repetition, institu tional uptake, and the circulation of familiar narrative cues. Using qualitative discourse analysis and an interpretive approach, this paper distinguishes among the socio-technical conditions that enable fraud, the institutional processes that stabilize attribution, and the semiotic dynamics through which national categories acquire durability. …


Full Issue Jan 2026

Full Issue

Digressions: Literary & Art Journal

No abstract provided.


Food Delivery Services For Enhancing Participation In The Special Supplemental Nutrition Program For Women, Infants, And Children (Wic) In The United States: Bridging The Wic-Eligible Access Gap, Jingjing Gao, Muinat Abolore Idris, Lilian O Ademu, Bryan Colby Griffin, Yue Zhang, Yun Hang, Gabriela A Gallegos Jan 2026

Food Delivery Services For Enhancing Participation In The Special Supplemental Nutrition Program For Women, Infants, And Children (Wic) In The United States: Bridging The Wic-Eligible Access Gap, Jingjing Gao, Muinat Abolore Idris, Lilian O Ademu, Bryan Colby Griffin, Yue Zhang, Yun Hang, Gabriela A Gallegos

Faculty, Staff and Student Publications

Background: Diet-related health disparities among U.S. children persist despite the availability of the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) benefits to eligible women, infants, and children. Participation remains suboptimal: only 51.2% of eligible individuals were enrolled in 2021. Transportation and food-environment constraints pose salient barriers, especially for caregivers of infants in food deserts. Emerging online ordering and delivery options may reduce access frictions, but grocery delivery coverage is limited, and fees are often not covered by benefits.

Methods: We linked USDA Food and Nutrition Service state-level WIC participation data (November 2024 vs. September 2025) with demographic, …


Building The Infection Prevention Workforce: Development, Implementation And Evaluation Of Texas Epidemic Public Health Institute Infection Prevention And Control 300 Series, Kayla E Ruch, Janelle Rios Jan 2026

Building The Infection Prevention Workforce: Development, Implementation And Evaluation Of Texas Epidemic Public Health Institute Infection Prevention And Control 300 Series, Kayla E Ruch, Janelle Rios

Faculty, Staff and Student Publications

Background: The Texas Epidemic Public Health Institute (TEPHI) was established to strengthen infectious disease preparedness across Texas. The Infection Prevention and Control (IPC) 300 Series represents the third year of a multi-tiered educational initiative designed to provide free, accessible, evidence-based IPC training and continuing education credits for the healthcare workforce.

Methods: Registration and attendance data were collected through Zoom™ and Microsoft Teams™. Knowledge assessments, post-module surveys, and mid- and end-of-series evaluations were administered through QuestionPro™. Module content was informed by guidance from APIC, CDC, CMS, and OSHA. Descriptive statistics and the Kirkpatrick Model of Training Evaluation were used to assess …


Feasibility And Preliminary Outcomes Of A Remotely-Delivered Exercise Training Intervention For English-Speaking Hispanics/Latinos With Multiple Sclerosis: Results From The Ferla Ms Study, Victoria A Flores, Stephanie L Silveira, David X Marquez, Dominique Kinnett-Hopkins, Augusto Miravalle, Fabian Sierra-Morales, Robert W Motl Jan 2026

Feasibility And Preliminary Outcomes Of A Remotely-Delivered Exercise Training Intervention For English-Speaking Hispanics/Latinos With Multiple Sclerosis: Results From The Ferla Ms Study, Victoria A Flores, Stephanie L Silveira, David X Marquez, Dominique Kinnett-Hopkins, Augusto Miravalle, Fabian Sierra-Morales, Robert W Motl

Faculty, Staff and Student Publications

Background: There is limited evidence on the feasibility of remotely delivered exercise interventions for English-speaking Hispanics/Latinos with MS.

Objectives: To evaluate the feasibility and exploratory efficacy of a remotely-delivered, home-based exercise program for English-speaking Hispanics/Latinos with MS and to explore associations among feasibility metrics, outcomes, and social determinants of health (SDOH).

Results: Of 340 individuals contacted, 112 were eligible (33%), 33 enrolled (9.7%), 30 randomized, and 26 completed (87% retention). Adherence averaged 81% (exercise) and 89% (control). No serious adverse events occurred. Exploratory within-group improvements were observed in the exercise group for physical activity (p = 0.03, d = …


Tourism And Local Access On The Public Beaches Of Paros, Greece, Maria Kouidi Jan 2026

Tourism And Local Access On The Public Beaches Of Paros, Greece, Maria Kouidi

Graduate Student Theses, Dissertations, & Professional Papers

This thesis examines how tourism development affects public beach access on the island of Paros, Greece. In recent years, Paros has experienced significant tourism growth, which has contributed to economic development while also placing pressure on natural resources, infrastructure, and coastal spaces. Beaches are protected as public goods under the Greek constitution; however, there are concerns regarding commercialization, overcrowding, and the illegal privatization of these public spaces. This thesis uses a qualitative research approach to explore how these changes are experienced and understood by different stakeholder groups. Data were collected through semi-structured interviews conducted in Paros in July 2025. Participants …


How Well Does Humboldt County Incorporate Indigenous Values Within Conservation Tourism?, Ula Simonsen-Webb Jan 2026

How Well Does Humboldt County Incorporate Indigenous Values Within Conservation Tourism?, Ula Simonsen-Webb

IdeaFest 2026

In what ways and how well does Humboldt County incorporate Indigenous values within conservation tourism? Through this project I applied the term of conservation tourism as a methodology for creating better tourism management strategies. Indigenous knowledge, values and perspectives are at the forefront of this project.


“An Extremely Dangerous Institution:” The Cultures And Controversy Of Public Social Dances In Montana, 1900-1930, Danielle Allison Brown Jan 2026

“An Extremely Dangerous Institution:” The Cultures And Controversy Of Public Social Dances In Montana, 1900-1930, Danielle Allison Brown

Graduate Student Theses, Dissertations, & Professional Papers

This paper explores public social dances east of the Continental Divide in Montana from 1900 to 1930. Rural social dances in schoolhouses and urban dances in dance halls created two different dance cultures. The relaxed nature of rural dances preserved the traditional values of nineteenth-century social dances, which reinforced community and family ties. Urban dances reflected the modern fads of the roaring twenties and challenged traditional values with sexual suggestiveness. Progressive Era moral reformers concerned about the possibility that social dance promoted illicit sexuality participated in an anti-dance movement and pushed for regulations of social dances. The anti-dance movement in …


Establishing A Nonmedical Cannabis Market In Virginia: Implications For Equity, Craig Dearield Phd, Anna Grace Causey, Rowan Baylosis, Nakeina E. Douglas-Glenn Phd Jan 2026

Establishing A Nonmedical Cannabis Market In Virginia: Implications For Equity, Craig Dearield Phd, Anna Grace Causey, Rowan Baylosis, Nakeina E. Douglas-Glenn Phd

Research Institute for Social Equity

Virginia passed an adult-use (recreational; non-medical) cannabis law that went into effect on July 1, 2021. Allowing adult possession of cannabis requires the passage of laws and regulations that govern this market (often similar to tobacco or alcohol) due to the intoxicating nature of cannabis and to ensuring the safety of the production processes. Establishing a formal retail market can also address harms related to public health and criminal justice, and benefit state agencies and residents. In order to maximize benefits, Virginia must implement the market with an equity perspective to ensure just treatment for all residents and organizations.


An Investigation Of The Perceived Effects Of, And Preparedness For, Climate Change On Tourism Stakeholders In The North Devon Unesco Biosphere, Mai Albaek Jan 2026

An Investigation Of The Perceived Effects Of, And Preparedness For, Climate Change On Tourism Stakeholders In The North Devon Unesco Biosphere, Mai Albaek

Plymouth Business School Theses

This thesis investigates the perceived effects of climate change and the level of preparedness among tourism stakeholders and local residents in the North Devon UNESCO Biosphere (NDUB), a protected area in southwest England. Using a mixed-methods approach, the study draws on quantitative surveys and qualitative interviews with residents, tourism-related business owners, and industry professionals to explore how climate change is understood, experienced, and addressed at the local level. The research is underpinned by stakeholder theory and collaboration theory, which are operationalised to examine the dynamics of climate perception, adaptation, and collective action. Findings reveal that while concern about climate change …


A Sustainable & Universal Redesign Of Hickory Hill Park In Richmond, Virginia, Ren Hollis, Cynthia Lin, Kira Miller, Jackson Nivera, Patrick O’Shea, Corinne Tsou, Hayston Wines Jan 2026

A Sustainable & Universal Redesign Of Hickory Hill Park In Richmond, Virginia, Ren Hollis, Cynthia Lin, Kira Miller, Jackson Nivera, Patrick O’Shea, Corinne Tsou, Hayston Wines

UROP Posters

Urban green spaces provide essential environmental, psychological, and physical benefits, yet access to these resources is often inequitable. Cities are increasingly vulnerable to climate change, highlighting the need for adaptive design. This study focuses on the redesign of Hickory Hill Park in Southside Richmond, selected through a combination of site suitability analysis and qualitative survey. The guiding research question is: How can a park in Richmond be designed to optimize environmental resilience, accessibility, and community benefits?

The selection of a research location and scope used a mixed-methods approach integrating spatial analysis, environmental assessment, and community engagement. A site suitability analysis …


The Limits Of Daca: Affordability- And Access-Related Barriers To Health Professions Education, Nicole Perez, Laura Hirshfield Jan 2026

The Limits Of Daca: Affordability- And Access-Related Barriers To Health Professions Education, Nicole Perez, Laura Hirshfield

Journal of College Access

The U.S. is currently facing a shortage of health professionals from underrepresented backgrounds. One potential pathway to decrease this shortage is through the Deferred Action for Childhood Arrivals (DACA) program, a policy that provides temporary relief from deportation for individuals who migrated to the U.S. before age 16. This study, using 15 life-history narrative interviews, investigates the experiences of Latinx young adults who were pursuing health professions education or working as health professionals. Nine of the participants were DACA recipients, while the remaining six were second-generation (i.e., children of immigrants). An iterative, inductive approach to data analysis was used to …


Eng 2100 - Writing 1 - Writing As Being, Jonathan Toro Jan 2026

Eng 2100 - Writing 1 - Writing As Being, Jonathan Toro

Open Educational Resources

This is an Open Educational Resources (OER) syllabus for ENG 2100 - Writing 1 - Writing as Being. In this course, students will examine how their identities and communities shape their understanding of themselves and the world around them—how it affects the way they move and think in the spaces they occupy. Through the usage of personal narrative and critical writing, the students will study how language, culture, community, and socio-historical contexts influence their ways of knowing and being. Then, they will utilize these influences—the very systems that affect them in tremendous ways—to write themselves into being.  All course materials, …


Trends In Pharmaceutical Patent Settlements Since Actavis And Private Plaintiffs' Causation Requirement, Kelly Lear Nordby Jan 2026

Trends In Pharmaceutical Patent Settlements Since Actavis And Private Plaintiffs' Causation Requirement, Kelly Lear Nordby

Minnesota Journal of Law, Science & Technology

In January 2025, the U.S. Federal Trade Commission (FTC) reported that a new form of “possible compensation” from brand drug manufacturers to generic (or biosimilar) manufacturers, specifically “quantity restrictions,” has become “increasingly prevalent” in pharmaceutical patent settlement agreements filed with FTC under the Medicare Prescription Drug, Improvement, and Modernization Act of 2003. As the FTC noted, “quantity restrictions” may reduce the settling firm’s incentives to compete, resulting in supracompetitive prices for the brand and generic drug. This article summarizes trends in pharmaceutical patent settlement agreements and reverse-payment antitrust litigation since the Supreme Court’s landmark decision in FTC v. Actavis. Focusing …


Occupational Exposure To Pesticides Increases The Risk Of Amyotrophyc Lateral Sclerosis: A Systematic Review And Meta-Analysis, France Labrèche, Pamela Prudhomme, Maryse Gagnon, Nicolas Dupré, Sabrina Gravel Jan 2026

Occupational Exposure To Pesticides Increases The Risk Of Amyotrophyc Lateral Sclerosis: A Systematic Review And Meta-Analysis, France Labrèche, Pamela Prudhomme, Maryse Gagnon, Nicolas Dupré, Sabrina Gravel

Études primaires

Objective To systematically review the evidence on the association between occupational exposure to pesticides and the risk of amyotrophic lateral sclerosis (ALS).

Methods A systematic search, conducted in eight bibliographic databases for publications between 1990 and 2025, identified observational studies estimating the risk of ALS after occupational pesticide exposure. Study quality was assessed using the WHO Risk of Bias (RoB) assessment instrument for systematic reviews, with the ROBINS-E (RoB in non-randomised studies of exposure) tool domains of bias. Pooled risk estimates were produced using random-effects models with restricted maximum likelihood, heterogeneity was assessed with I² statistics, and meta-regressions and publication …


Revisiting The Rural Folk Devil: Rural 'Othering' And The Connections Between Media Stereotypes And Rural Issues, Brooke Baker, Ida L. Oesteraas, Stephen T. Young, Elizabeth Monk-Turner Jan 2026

Revisiting The Rural Folk Devil: Rural 'Othering' And The Connections Between Media Stereotypes And Rural Issues, Brooke Baker, Ida L. Oesteraas, Stephen T. Young, Elizabeth Monk-Turner

Sociology & Criminal Justice Faculty Publications

The current study is a discourse analysis investigating anti-idyllic cinematic representations, specifically in the horror genre, of rural people, places, and cultures. Findings reveal that anti-idyllic images and discourses are prominent within recently released horror films, which rely heavily on framing rural people as the deviant “other.” Special attention is given to the cultural work of these stereotypical depictions and the associated social harms for rural communities. Specifically, we argue that (1) corporations, particularly film companies, contribute to social harm in rural areas by disseminating negative and anti-idyllic representations; (2) these portrayals have tangible and detrimental effects on both people …


Land Use And Land Cover Simulation Via Integrated Modelling With Gis Techniques For Sustainable Land Utilization Development In The Northeast Khong Subwatershed Of Thailand, ฺBanchongsak Faksomboon, Thipphaphone Keoviyavong Jan 2026

Land Use And Land Cover Simulation Via Integrated Modelling With Gis Techniques For Sustainable Land Utilization Development In The Northeast Khong Subwatershed Of Thailand, ฺBanchongsak Faksomboon, Thipphaphone Keoviyavong

Applied Environmental Research

Land utilization is an important indicator of socioeconomic and environmental changes caused by both natural and man-made factors. Land use and land cover (LULC) simulation is a critical tool for monitoring and predicting LULC and is essential for sustainable development, land resource management and planning. The cellular automata (CA) Markov model is the basis for the current study’s prediction of LULC changes in the Northeast Khong Sub Watershed (NKSW). Landsat data from 2013 to 2023 were used to investigate LULC classification and determine the spatiotemporal distributions of LULC. In addition, LULC data from 2013 and 2023 were used to generate …


Spatial Modeling Of Natural Disaster Risk By Integrating Hazard, Vulnerability, And Exposure Factors Using Geospatial Techniques : Evidence From Mueang Tak District, Thailand, Suphatphong Ruthamnong Jan 2026

Spatial Modeling Of Natural Disaster Risk By Integrating Hazard, Vulnerability, And Exposure Factors Using Geospatial Techniques : Evidence From Mueang Tak District, Thailand, Suphatphong Ruthamnong

Applied Environmental Research

This study presents a comprehensive multihazard risk assessment for Mueang Tak District, Thailand, that integrates hazard, vulnerability, and exposure (H-V-E) dimensions. By utilizing geographic information systems (GIS) and remote sensing, the analytic hierarchy process (AHP) was employed to prioritize critical risk factors. GIS analysis integrated multisource spatial data, including Landsat 9 and Sentinel-2 imagery, CHIRPS precipitation, and SRTM-derived topography, while AHP weights were established on the basis of expert judgment and socioeconomic indices such as the relative wealth index (RWI) and population statistics. The results delineate distinct spatial risk clusters: high landslide potential is concentrated in the steep terrain of …


Agglomeration Dynamics And Firm Typologies In African Port-Industrial Clusters: Evidence From The Port Of Tema, Ghana, George Kobina Vandyck, Jonas Aryee, George Acheampong, Annette Skovsted Hansen Jan 2026

Agglomeration Dynamics And Firm Typologies In African Port-Industrial Clusters: Evidence From The Port Of Tema, Ghana, George Kobina Vandyck, Jonas Aryee, George Acheampong, Annette Skovsted Hansen

Plymouth Business School

Firm-level behaviour within port-industrial clusters shapes regional competitiveness, yet empirical evidence from Sub-Saharan Africa remains scarce. This study analyses how firms within the Port of Tema industrial cluster in Ghana engage with collaboration, resource access, and innovation dynamics, applying evolutionary, institutional, and network-relational perspectives. A cross-sectional survey of 278 firms within a 10-km radius of the port was analysed using K-means clustering and validated through ANOVA and Chi-square tests. Four firm typologies were identified: Collaborative Integrators, who leverage cooperation to achieve superior market and financial access; Dynamic Coopetitors, balancing competitive and cooperative ties; Competitive Innovators, maintaining selective engagement; and Isolated …


Governing Agroecological Transitions: Landscape Legacies, Participation, And Socioecological Change In The Northeastern United States, Kristen Jovanelly Jan 2026

Governing Agroecological Transitions: Landscape Legacies, Participation, And Socioecological Change In The Northeastern United States, Kristen Jovanelly

Dartmouth College Ph.D Dissertations

Agroecological transitions are often presented as purposeful shifts toward more resilient, equitable, and ecologically sustainable landscapes. In practice, these transitions unfold through histories, ecological feedback, institutional arrangements, and contested forms of participation. This dissertation examines how these forces shape what agroecological transitions become, for whom, and with what socioecological consequences across urban and working landscapes in the northeastern United States.

Drawing on historical and critical analysis, ecological modeling, greenhouse experimentation, ethnographic fieldwork, and institutional analysis, I trace transition through urban forests, community-garden seed banks and soils, temperate agroforestry systems, and a participatory tree nursery. Analyses of urban greening and agroforestry …


Geospatial Analysis Of Wildfire Ignitions And Proximity To Electric Transmission Lines In Arizona’S National Forests, Shane Ishmael, Ronny Schroeder Jan 2026

Geospatial Analysis Of Wildfire Ignitions And Proximity To Electric Transmission Lines In Arizona’S National Forests, Shane Ishmael, Ronny Schroeder

Student Works

The number of wildfires in Arizona rose by 18% from 2023 to 2024. Wildfires hit the Western United States hard, especially in states like Arizona and California, where vast national forests often fall victim to the biggest blazes. According to the Western Fire Chiefs Association, 19% of wildfires from 2016 to 2020 were sparked by electrical transmission lines.

This study explores whether wildfire start-location hotspots line up with power transmission routes running through Arizona’s Coconino and Tonto National Forests. The main hypothesis is that areas near power lines are more likely to become wildfire hotspots than other regions.

We used …


Addressing Geoai Governance: An Automated Gatekeeper For Building Outlines In Openstreetmap, Lasith Niroshan, James D. Carswell Jan 2026

Addressing Geoai Governance: An Automated Gatekeeper For Building Outlines In Openstreetmap, Lasith Niroshan, James D. Carswell

Research Outputs: 2025-Present

Geospatial Artificial Intelligence (GeoAI) enables the automated generation of built environment map features, such as building outlines/footprints, on a global scale. However, the integration of these AI-generated datasets into Volunteered Geographic Information (VGI) platforms like OpenStreetMap (OSM) risks incorporating ‘AI slop’, consisting of geometrically inconsistent/unreliable data, into the online map. While the OSM “Code of Conduct for Automated Edits” provides a policy framework for data ingestion, it lacks a machine-enforceable mechanism for real-time quality gating. This paper proposes a GeoAI-Gatekeeper to perform this task—an automated process that applies empirical Acceptable Quality Thresholds (AQT) to address the GeoAI data governance problem. …


Between A Rockpile And A Hard Place: Mapping The Folk-Hydronymy Of Southern New England, Amanda Gilmore Jan 2026

Between A Rockpile And A Hard Place: Mapping The Folk-Hydronymy Of Southern New England, Amanda Gilmore

Open Access Master's Theses

Fishermen in Southern New England (SNE) utilize a wide variety of placenames to delineate areas of significance on the open ocean. This information provides new revelations not just about the way fishermen navigate the ocean, but also insight about overlaps between Local Ecological Knowledge (LEK) and Fishermen’s Ecological Knowledge in the historically prolific fishing sector of Southern New England. Prior to this study, this collection of vernacular place names on the water, or folk-hydronymy, had never been documented or analyzed, as it was held almost entirely in cognitive maps and proliferated through communication with other fishermen. This project’s goal was …


Seasonal Variations In Co2 Emission From Poultry Manure-Amended Soils In Two Contrasting Tropical Agroecosystems, Gladys M. Akande, Adebayo J. Adeyemo, Chidozie J. Oraegbunam, Iduh J.J. Otene, Ezekiel C. Are, Babatunde S. Ewulo, Chioma M. Ahukaemere, Samuel O. Kolawole, Sunday E. Obalum Jan 2026

Seasonal Variations In Co2 Emission From Poultry Manure-Amended Soils In Two Contrasting Tropical Agroecosystems, Gladys M. Akande, Adebayo J. Adeyemo, Chidozie J. Oraegbunam, Iduh J.J. Otene, Ezekiel C. Are, Babatunde S. Ewulo, Chioma M. Ahukaemere, Samuel O. Kolawole, Sunday E. Obalum

Applied Environmental Research

The soil remains the largest carbon sink, the capacity of which varies spatiotemporally and with anthropogenic activities, with implications for carbon dioxide (CO2) emissions and associated global warming. Despite the increasing popularity of organic amendments in the ecologically and anthropoculturally diverse farming systems of tropical Africa, manure-induced CO2 emissions in this region with high soil-carbon-sequestration potential are poorly documented. This study assessed seasonal CO2 emissions from poultry manure-amended sandy-clay-loam and sandy-loam soils in the Rainforest-Savannah and Southern Guinea Savannah zones, respectively, of Nigeria. Following manure application at 3 rates (0, 10, and 15 t ha-1), soil samples were collected during …


Assessing Forest Fragmentation And Edge Expansion In Nan Province, Thailand, Using Landsat Data (2014–2022), Kasidit Rison, Marut Fuangarworn, Chatchawan Chaisuekul Jan 2026

Assessing Forest Fragmentation And Edge Expansion In Nan Province, Thailand, Using Landsat Data (2014–2022), Kasidit Rison, Marut Fuangarworn, Chatchawan Chaisuekul

Applied Environmental Research

The increasing pressure from land-use change and agricultural expansion in Nan Province, northern Thailand, has accelerated forest fragmentation and reduced the ecosystem service value (ESV) of the landscape. This study aims to: assess land use and forest fragmentation change in Nan Province between 2014 and 2022, and evaluate the impact of land use change on ESV. Landsat 8 OLI satellite imagery from 2014 and 2022 was used to classify land cover into five types: forest, agriculture, settlements, exposed soil, and others. Forest fragmentation was evaluated using landscape metrics such as patch number, mean patch size, edge length, and core area. …