Digital Commons Network^™

Infinitely Many Hidden Attractors In A Simple Six-Term Chaotic 2-Torus Snap System With A Line Of Equilibria, Sarbast Hussein Mikaeel, Irfan Ahmad, Rizgar H. Salih

Baghdad Science Journal

Chaotic systems with simple structures and controllable dynamics are highly desirable for practical applications, including secure communications, signal processing, and nonlinear control. However, most existing systems are too complex or lack flexibility in controlling signal amplitude and polarity. In this study, a simple chaotic snap system is considered that has a line of equilibria and is composed of six algebraic terms, with a single quadratic nonlinearity. In some regions of parameter space, a chaotic attractor coexists with a line equilibrium or with a limit cycle of period-2. The basin boundary of a limit cycle and chaotic attractor is smooth. Additionally, …

Ideologi Gender Dibalik Definisi Legal Formal Analisis Sosiologis Terhadap Definisi Perkosaan Di Dalam Hukum, Liza Hadiz

Jurnal Hukum & Pembangunan

Abstract

Peninjauan Kembali Pemanfaatan Selat Malaka, Usmahadi Usmahadi

Jurnal Hukum & Pembangunan

Abstract

Africa’S Digital Knowledge Economy: Building And Boosting Access To Quality Research From Africa, Hyeladzirra Banu

Howard University Journal of African Studies (HUJAS)

Africa has built its knowledge economy since the rise of its ancient civilizations. The turn of the new millennium marked the rise of Africa’s digital knowledge economy, as it did for the rest of the world. This article analyses Africa’s knowledge systems, linking the foundational sources of original research to ancient knowledge systems and tracing these systems into the current digital era within which the article locates Africa’s knowledge economy. What are the epistemological and ontological bases of African knowledge systems, and how do they relate to Africa’s modern digital knowledge economy? This study has two parts: The first traces …

Evaluating The Impact Of Residential Landscape Audits Using 5-Second Water Use Data, Mahmud Aveek, Camilo J. Bastidas Pacheco, David E. Rosenberg, Jeffery S. Horsburgh, Kelly Kopp, Belize A. Lane

Civil and Environmental Engineering Student Research

We used 5-s water use data to evaluate the effectiveness of residential landscape water audits in summer 2022. Fifty-nine households in two northern Utah cities were monitored for 2–5 weeks before and 3–10 weeks after an audit. We found that the distribution of weekly irrigation volumes postaudit was statistically less than the distribution preaudit (significant at the 1.9E10-5 level). Collectively, the participants reduced their landscape irrigation water use by approximately 379,000 L per week (100,300 gal per week; 0.3 acre-feet per week). We also analyzed changes in irrigation event volume, duration, frequency, and the number of days between events at …

Fairhiveframes-1k: A Public Fair Dataset Of 1265 Annotated Hive Frame Images With Preliminary Yolov8 And Yolov11 Baselines, Vladimir Kulyukin, Reagan Hill, Aleksey Kulyukin

Computer Science Faculty and Staff Publications

In precision apiculture, the portable digital camera is a cost-effective sensor for capturing hive images or videos used to quantify different colony variables. Openly accessible, well-annotated, interoperable cell-level image datasets are still the exception rather than the norm. This shortage constitutes a major barrier to AI-driven approaches aimed at automating image-based comb analysis. In this article, we present FAIRHiveFrames-1K, a publicly available dataset of 1265 annotated hive frame images (1920 × 1080 PNG) designed to facilitate research in AI-intensive image-based comb analysis automation. The dataset, derived from a 2013–2022 U.S. Department of Agriculture–Agricultural Research Service multi-sensor research reservoir, includes 124,669 …

From Tradition To Transition: Evaluating Culinary Medicine As A Tool For Metabolic Health Among Nigerian Immigrants In The United States And The United Kingdom, Simi Oduwole M.S.

Department of Nutrition Student Projects

This scoping review examines existing publications to evaluate whether Culinary Medicine can be used as a tool for metabolic health among Nigerian immigrants in the United States and the United Kingdom. Nigeria is one of the fastest-growing populations globally, with increasing migration to high-income countries such as the United States and the United Kingdom. Evidence suggests that Nigerian immigrants experience a rise in diet-related chronic diseases, including obesity, diabetes, and cardiovascular disease, as duration of residence increases. This phenomenon is often attributed to dietary acculturation and shifts toward Westernized eating patterns. This scoping review evaluates whether culinary medicine can mitigate …

Sex Differences In Proteomic Response To Ischemic Stroke, Christopher J. Mclouth, Hunter S. Hazelwood, Jacqueline A. Frank, Jordan P. Harp, David Dornbos Iii, Justin F. Fraser, Keith R. Pennypacker

University Faculty Publications and Creative Works

Background: Women often experience greater disability after ischemic stroke than men, but the biological mechanisms underlying these differences remain unclear. Proteomic analysis may identify sex-specific molecular pathways that contribute to stroke rehabilitation and recovery.

Methods: We analyzed plasma samples from 141 patients enrolled in the Blood and Clot Thrombectomy Registry and Collaboration (BACTRAC). Expression of 184 inflammatory and cardiometabolic proteins, measured proximal and distal to the clot, was quantified using Olink panels. Associations between protein expression and discharge outcomes – including the National Institutes of Health Stroke Scale (NIHSS) and modified Rankin Scale (mRS), and Montreal Cognitive Assessment …

Sex Differences In Proteomic Response To Ischemic Stroke, Christopher J. Mclouth, Hunter S. Hazelwood, Jacqueline A. Frank, Jordan P. Harp, David Dornbos, Justin F. Fraser, Keith R. Pennypacker

University Faculty Publications and Creative Works

Background: Women often experience greater disability after ischemic stroke than men, but the biological mechanisms underlying these differences remain unclear. Proteomic analysis may identify sex-specific molecular pathways that contribute to stroke rehabilitation and recovery.

Methods: We analyzed plasma samples from 141 patients enrolled in the Blood and Clot Thrombectomy Registry and Collaboration (BACTRAC). Expression of 184 inflammatory and cardiometabolic proteins, measured proximal and distal to the clot, was quantified using Olink panels. Associations between protein expression and discharge outcomes – including the National Institutes of Health Stroke Scale (NIHSS) and modified Rankin Scale (mRS), and Montreal Cognitive Assessment (MoCA) – …

Development Of Resources To Support Independence In And Access To Nature-Based Activities, Riley Carpender

Capstone Projects

This capstone paper discusses the need for resources that support independence in and access to nature-based activities that support health and wellbeing. Occupational therapists (OTs) have expertise in recommending and implementing adaptations to increase individuals’ engagement in nature-based activities. There is currently a gap in the literature regarding access to nature-based activities, and a lack of understanding of how these activities may be implemented, either by caregivers, educators or healthcare professionals. During my capstone I created a guide with modifications for gardening activities for children, wrote an article on how to adapt nature journaling to be more accessible, coded and …

The Digital Neuron: Neural Cellular Automata For Neural–Symbolic Translation, Nicole Assenza

SMU Data Science Review

A neural cellular automata (NCA) architecture, referred to as Pluto’s NCA, was developed to characterize bilateral communication and semantic reciprocity between symbolic representations and a spatially distributed update field. The architecture employs an encoder–automata–decoder pipeline that maps symbolic inputs into a multichannel state field and reconstructs them through agreement-driven attractor convergence within a stable semantic attractor landscape. System behavior was evaluated under controlled perturbations, including rhythmic desynchronization, graded ablations, correlated and independent noise, and percolation-based structural degradation. Quantities such as Agreement(t), internal coherence Aᵢ(t), the recovery time constant τ, and the critical percolation threshold pc were measured to assess stability, …

Perbedaan Hasil Belajar Ips Model Project-Based Learning Berbasis Outdoor Study Dengan Konvensional Siswa Smp, Ratna Danarti

Jurnal Pendidikan Humaniora

Penelitian ini bertujuan untuk mengetahui perbedaan hasil belajar siswa sebelum dan sesudah penerapan model Project-Based Learning (PBL) berbasis Outdoor Study serta mengetahui perbedaan hasil belajar siswa antara kelas model PBL berbasis Outdoor Study dengan konvensional pada siswa kelas VII. Penelitian ini menggunakan rancangan penelitian kuasi eksperimen dengan menggunakan teknik pretes-posttest nonequivalent control group design. Subjek penelitian adalah kelas VII A dan VII B SMP Negeri 2 Ponorogo. Instrumen penelitian yang digunakan berupa silabus, RPP, dan tes hasil belajar. Hasil penelitian menunjukkan bahwa pembelajaran model PBL berbasis Outdoor Study dapat berjalan dengan sangat baik sesuai dengan sintak-sintaknya dan respon siswa menunjukkan …

Hormetic Ethanol Effects On Fitness And Attraction In Irradiated Aedes Aegypti, Kayden Robey, Gabriel Borg, Immo Hansen

The Agora

Sterile insect technique (SIT) is an increasingly important strategy for controlling mosquito populations while reducing reliance on chemical insecticides and genetically modified organisms. A major limitation of SIT is the reduced fitness and competitiveness of irradiated male mosquitoes, which can compromise population suppression efforts. This study investigates whether hormetic ethanol exposure improves post-irradiation fitness in Aedes aegypti males, a primary vector of dengue, chikungunya, and yellow fever. Adult male mosquitoes were fed either a standard sugar solution or a sugar solution supplemented with 5% ethanol prior to irradiation. Males were sterilized using X-ray irradiation at 50 Gy and assessed for …

Organic Synthesis Of A Hydrazine Functionalized Ammonium Compound For Improved Capture Of Aldehyde Metabolites From Exhaled Breath, Po'iu N. Burgo

Undergraduate Theses

Breath analysis has emerged as a non-invasive and inexpensive way to screen for respiratory diseases. This technique involves measuring concentrations of specific metabolites found in exhaled breath that serve as a biomarkers for disease. A subclass of volatile organic compounds called α,β-Unsaturated aldehydes, products of the lipid peroxidation mechanism, are underrepresented as biomarkers of lung cancer. These have been found to have relatively increased concentrations in the exhaled breath of lung cancer patients compared to a healthy patient. One of the reasons that these metabolites have been underreported is that the techniques used to measure and characterized exhaled metabolites do …

Uncovering Endometriosis, Gabriella Viana Wilson

Honors Capstone Projects and Theses

No abstract provided.

Maternal Inflammation Alters Nuclear And Mitochondrial Dna Methylation Patterns In Neonatal Brain Monocytes, Andrew Ebenezer, Jonathan Hicks, Brooke Hollander, Alexander Hone, Mona Batish, Robert Akins, Adam Marsh, Elizabeth Wright-Jin

Department of Medicine Faculty Papers

Neonatal hypoxic ischemic encephalopathy (HIE) is a common birth complication that can cause death or lifelong disabling conditions like cerebral palsy, epilepsy, and autism. It is well established that maternal infection and inflammation are significant risk factors for HIE but reasons for this increase in neurological risk to the offspring remain unknown. Inflammation or infection are associated with epigenetic changes and may contribute to the increased risk of neurodevelopmental disability in exposed offspring. Here, we analyzed and compared DNA methylation patterns in brain monocytes isolated from control, maternal immune activation (MIA), and an inflammation sensitized HIE (IS-HIE) CF-1 mouse model …

Prompt Engineering For Lawyers: We Will Add Your Distinctiveness To Our Own: Iterative Refinement And Prompt Chaining, Cliff Mckinney

Arkansas Law Notes

In the last edition, we explored two advanced prompt engineering techniques, chunking and few-shot prompting. In this edition, we will examine two more useful techniques: iterative prompt refinement and prompt chaining. Iterative prompt refinement involves repeatedly rephrasing and refining questions to lead to a better response. Prompt chaining involves guiding the artificial intelligence through related multi-step reasoning.

At first glance, iterative prompt refinement and prompt chaining may seem like the same concept, but the key difference lies in their approach. Refinement improves a single prompt through repeated adjustments, whereas chaining links a series of prompts together to tackle different stages …

A Rare Presentation Of Extra-Appendiceal Mucinous Neoplasm Of The Anus, Pincus Joshua, Marianne Estrada, Lance Horner University Of Nevada, Las Vegas

School of Medicine Research Poster Showcase

Introduction: Mucinous neoplasm of the anus is an uncommon malignancy, representing less than 3% of all anal cancers. Even more rare is extra-appendiceal mucinous neoplasm. As a result, limited literature exists to define diagnostic strategies and optimal management. Our case report details the presentation and management of a patient with recurrent mucinous neoplasm of the anus. Methods: A retrospective chart review was performed which includes clinic documentation., operative notes, pathology reports. Results: The patient is a 76-year-old male with a history of T3N0M0 anal mucinous carcinoma diagnosed in 2015 and treated with neoadjuvant chemoradiation with complete pathological response. In 2024, …

Starting With Story, Not Symptom: Narrative Collapse And Cultural Repair In Appalachia, Wayne Coombs Ph.D.

Journal of Appalachian Health

Appalachia’s opioid crisis reflects uneven burdens, especially in distressed coalfield counties, and it cannot be solved by symptom tracking alone. This commentary argues for a narrative shift, starting with story and cultural repair alongside clinical care. Narrative collapse is defined here as the loss of shared, dependable public meaning across groups, not the absence of storytelling in families, churches, and recovery circles. Trauma science suggests that chronic threat reshapes nervous systems across generations, making safety a prerequisite for renewed trust. Drawing on narrative identity research, the piece proposes peer story work as infrastructure that can reduce shame, support treatment engagement, …

Perbedaan Hasil Belajar Ips Model Project-Based Learning Berbasis Outdoor Study Dengan Konvensional Siswa Smp, Ratna Danarti

Jurnal Pendidikan Humaniora

Penelitian ini bertujuan untuk mengetahui perbedaan hasil belajar siswa sebelum dan sesudah penerapan model Project-Based Learning (PBL) berbasis Outdoor Study serta mengetahui perbedaan hasil belajar siswa antara kelas model PBL berbasis Outdoor Study dengan konvensional pada siswa kelas VII. Penelitian ini menggunakan rancangan penelitian kuasi eksperimen dengan menggunakan teknik pretes-posttest nonequivalent control group design. Subjek penelitian adalah kelas VII A dan VII B SMP Negeri 2 Ponorogo. Instrumen penelitian yang digunakan berupa silabus, RPP, dan tes hasil belajar. Hasil penelitian menunjukkan bahwa pembelajaran model PBL berbasis Outdoor Study dapat berjalan dengan sangat baik sesuai dengan sintak-sintaknya dan respon siswa menunjukkan …

Perceptions And Meta Perceptions Of Bison In The West, Riley Comstock

University of Montana Conference on Undergraduate Research (UMCUR)

Effective coexistence between wildlife populations and the people that live with them requires an understanding of how people feel toward the species and their management. Bison occupy a unique place in conservation history and management. Once extirpated across nearly all of their range and only recently introduced to areas outside of large tracts of federal land, they are now a jurisdictionally challenged species, with varying management paradigms across a patchwork of landowners and managers. Recent research has shown how activating different social identities can distort people’s attitudes toward species. Here, I explore whether activating urban and rural identities distorts people’s …

Unraveling Roadless Protections: Implications Of Rescinding The 2001 Roadless Rule For Esa-Listed Species, Blixen B. Hofmann

University of Montana Conference on Undergraduate Research (UMCUR)

In June of 2025 the Trump Administration proposed to rescind the 2001 Roadless Rule: a landmark conservation rule from the Clinton era that prevents roadbuilding and logging on roughly 58 million acres of federal forest and wildlands. The proposed rescission follows orders from President Trump to increase logging and thinning of forests and economic development in the wake of an “energy emergency”. More than 65% of all Forest Service sensitive species are directly or indirectly affected by inventoried roadless areas. For example, 220 species that are listed as threatened, endangered, or proposed for listing under the Endangered Species Act rely …

Wildlife Use Of Prairie Streams Relative To Beaver Dams And Water, Ethaniel D. Marshall

University of Montana Conference on Undergraduate Research (UMCUR)

Human activities and climate change continue to impact wildlife populations and ecosystem integrity. In Montana’s semi-arid prairie ecosystems, the North American beaver (Castor canadensis) may increase the resistance and resilience of water-limited ecosystems and promote wildlife activity for both aquatic and terrestrial species. However, there is still limited understanding regarding the influence of beaver dams on wildlife use in these semi-arid, prairie ecosystems. Through a camera-trap study, we sought to examine how wildlife use, across taxa, is associated with beaver dams and water availability during the summer on small prairie streams in eastern Montana. We deployed motion-activated cameras that recorded …

How Do Individual And Environmental Covariates Impact The Immune Response Of Deer Mice In Western Montana, Rachel A. Throckmorton

University of Montana Conference on Undergraduate Research (UMCUR)

Sin Nombre Virus (SNV) is an exceptional model system for studying wildlife disease because of how simple it is to capture, take samples, and obtain disease status from the primary host. Immune response is an important factor to consider when testing for SNV because it can affect susceptibility of the host as well as transmission of the virus. We examined individual and environmental conditions that may influence immune response and therefore possibly SNV transmission in wild populations. We investigated whether SNV infection status, reproductive status, sex, and season influenced immune response through examining total white blood cell (WBC) counts and …

Microfluidics For Live Imaging Of C. Elegans Germline Stem Cells, Camille K. Spencer

University of Montana Conference on Undergraduate Research (UMCUR)

Live imaging of the C. elegans germline in situ enables direct observation of dynamic developmental processes as they occur, which has particular relevance in the study of protein expression and germline stem cell dynamics.

Traditional methods of immobilization are often physiologically taxing on C. elegans. Chemical immobilization via paralytics often compromise worm viability, disrupting the cellular processes we aim to study by sickening them, inducing stress responses. Starvation in particular is a significant limitation as stress signaling is known to directly inhibit GSC division rapidly upon food cessation.

In the Voronina lab, we set out to develop two microfluidics based …

Combating Overdose: Production And Analysis Of Fentanyl Specific Antibodies, Elizabeth J. Florian

University of Montana Conference on Undergraduate Research (UMCUR)

Fentanyl overdose deaths are on the rise from both intentional use and accidental exposure. Our work focuses on identifying additional treatment options to Narcan, an opioid receptor antagonist which reverses overdose effects by receptor competition. One alternative method, that has been approved by the FDA, is the development of monoclonal antibodies (mAbs). This therapeutic method works by antibodies binding fentanyl in the bloodstream and preventing it from crossing the blood-brain barrier. Our group has begun identifying mAbs by vaccinating mice with a fentanyl hapten (F1) vaccine adjuvanted with a TLR 7/8 agonist. Vaccination leads to the production of antibodies that …

Crystallographic Insights Into The Biological Roles Of Α,Α- Trehalose, Sydney Mcgrath, Ashley Freeman, Asia Marie S. Riel, Daniel Adam Decato

University of Montana Conference on Undergraduate Research (UMCUR)

α,α-trehalose is a naturally occurring molecule comprised of two glucose molecules linked together, is biologically active. Immunomodulatory compounds have used α,α-trehalose as a core structure to activate an immune response in proteins such as the Macrophate-Inducible C-type Lectin receptor. Activation of this receptor is hypothesized to occur through ligand-induced oligomerization, driven by small-molecule (pathogen-derived or endogenous) aggregation and self-assembly. However, this has not been fully investigated. This work set out to evaluate reported α,α-trehalose crystal structures from the Cambridge Crystal Structure Database. We evaluated 41 different α,α-trehalose supramolecular structures, understanding their application and categorizing their self-assembly through hydrogen bonding and …

Quantity Vs Quality Tradeoffs In Black Brant Geese: What Is The Relationship Between Clutch Size And Egg Volume?, Bella Adams

University of Montana Conference on Undergraduate Research (UMCUR)

Trade-offs between offspring quantity and quality are fundamental to life-history variation among species and may lead to fitness variation within populations of organisms. The purpose of this research is to explore the relationship between clutch size and egg volume in black brant (Branta bernicla nigricans) geese while controlling for age and quality of the parents to accurately gauge this relationship. Research on a brant population breeding at the Tutakoke River, Alaska, began in 1984, resulting in a dataset spanning >40 years. In 2025, I spent three months in Alaska contributing to the data collection for this long-term study. I assisted …

Recency Vs. Frequency: Contrasting Controls On Soil Carbon Cycling After Wildfire In Subalpine Lodgepole Pine Forests, Declan Clark, Kimberley T. Davis, Dalton Brantley, Jacob Baldner, Meredith Zettlemoyer

University of Montana Conference on Undergraduate Research (UMCUR)

Wildfires in western United States conifer forests have increased in both frequency and severity due to human-caused climate change, with important but poorly constrained implications for carbon (C) cycling in these ecosystems. The largest pool of ecosystem C in forests is belowground, though much of it is insulated against direct combustion from fire. Therefore, understanding how changing wildfire regimes influence ecosystem C requires not only quantifying soil C pools to capture direct effects but also evaluate the indirect and legacy effects of fire on C cycling, including changes in microbial C processing.

To evaluate the direct and indirect fire effects, …

Gαi Megabodies As A Structural Scaffold: Complexing Megabody Ca15960 And Δn31g⍺I, Sylvie-Aganoti T. Tower

University of Montana Conference on Undergraduate Research (UMCUR)

G protein coupled receptors (GPCRs), a major and diverse group of membrane receptors, are responsible for transducing extracellular signals (ligands) to activate intracellular metabolic pathways. In fact, over a third of FDA approved drugs target GPCRs. Research on GPCR activity contributes significantly to pharmacology and medicine. Signal transduction results in a conformational change activating guanine nucleotide binding proteins (G proteins) by exchanging GDP for GTP. G proteins form heterotrimers consisting of alpha (𝜶), beta (β), and gamma (γ) subunits. From a Gαi specific nanobody (~15 kDa), we have derived 3 megabody constructs ranging in molecular weight from ~55-100 kDa. Megabodies …