Digital Commons Network^™

The Topology Of Simple Games, Leah Valentiner, Ismar Volić

The Mathematics Enthusiast

We initiate the study of simple games from the point of view of combinatorial topology. The starting premise is that the losing coalitions of a simple game can be identified with a simplicial complex. Various topological constructions and results from the theory of simplicial complexes then carry over to the setting of simple games. Examples are cone, join, and the Alexander dual which have interpretations as familiar game-theoretic notions and objects such as the arithmetic of games and dual games. We also provide some new topological results about simple games, most notably in applications of homology of simplicial complexes to …

Redistributing Votes When Candidates Drop Out Of An Election, Stanley R. Huddy, Michael A. Jones, Jennifer M. Wilson

The Mathematics Enthusiast

The U.S. Presidential Primary is a series of statewide primaries and caucuses used by the Democratic and Republican parties to winnow a pool of candidates to arrive at their nominees. As unsuccessful candidates leave the race, there is a question as to how voters who planned to vote for the candidate reassign their votes in the upcoming primaries/caucuses. When a profile of voters’ preferences is independent of elimination under plurality, then voters whose first-place candidate has dropped out of the race have their votes distributed to the remaining candidates in the same proportion of the remaining candidates’ first-place votes. For …

Quantitative Analysis Of Blue 1 Dye In Commercial Sports Drinks By Uv -Vis Spectroscopy And Hplc-Dad, Mikayla Bush

Forensic Science Master's Projects

Food dyes are natural or synthetic substances added to foods, beverages, and cosmetics to enhance color and visual appeal. Although they provide no nutritional value, they are widely used to attract consumers, particularly children. Concerns have been raised about the potential health effects of synthetic dyes, including links to hyperactivity in children, tumor formation at high doses, and possible impacts on gut and brain function. In response, regulatory efforts are ongoing. In April 2025, the U.S. Department of Health and Human Services (HHS) and the Food and Drug Administration (FDA) announced an initiative to phase out petroleum-based food dyes, including …

A History Of University Of Rhode Island Partnerships In The Philippines With Marine Resources And Fisheries Management As Primary Drivers, Michael A. Rice, Donald D. Robadue, Brian Crawford

Fisheries, Animal and Veterinary Sciences Faculty Publications

No abstract provided.

Effects Of Magnesium Supplementation On Selected Strength And Speed Performance Tests In Elite Soccer Players, Dalshad Mohammed Abdulrahman

Modern Sport

Magnesium supports energy metabolism, neuromuscular regulation, and muscle contraction, yet direct evidence for its supplementation benefits on explosive strength and sprint performance in elite soccer players remains limited. This study examined the effect of eight weeks of magnesium supplementation, combined with regular training, on vertical jump height and 30-m sprint performance in elite soccer players. This exploratory, open-label, randomized controlled trial used a parallel pretest–post-test design. Twenty-four first-team players from Duhok Sports Club were randomly allocated (1:1) to receive either 350 mg/day elemental magnesium (as magnesium citrate) for 8 weeks or regular training alone. Primary outcomes were vertical jump height …

Pengembangan Media Komik Untuk Meningkatkan Pengetahuan Tentang Menggambar Komik Pada Peserta Didik Kelas Viii Smpn 15 Kota Malang, Khairani Indah Damayanti, Abdul Rahman Prasetyo

Journal of Innovation and Teacher Professionalism

This study was motivated by students’ limited understanding of comic drawing concepts and the need for learning media to support art education. It aimed to analyze learning needs, develop comic-based learning media, and examine its feasibility, practicality, and effectiveness. The study employed a Research and Development (R&D) approach using the ADDIE model, comprising analysis, design, development, implementation, and evaluation. The implementation involved 29 eighth-grade students at SMPN 15 Malang, Indonesia. Media feasibility was assessed by subject-matter and media experts, practicality was evaluated based on student and teacher responses, and effectiveness was analyzed using pre-test, post-test, and N-gain scores. The validation …

Capacity Development Priorities For Enduring Biodiversity Conservation: A New Methodology And Evidence From Peru, Katia Nakamura, Jennifer Zavaleta Cheek, Johanna Eklund, Jenny Brooks, Daniel C. Miller

Natural Resource Management Faculty Publications

Capacity development is essential for long-term biodiversity conservation. Yet knowledge of conservation capacity development needs and priorities remains limited, particularly in low- and middle-income countries with high biodiversity and limited institutional capacity. This study addresses this gap by identifying and analyzing the priorities highlighted by conservation professionals in Peru. Using Q-methodology and open-ended surveys, we found three distinct perspectives from 27 conservation professionals working in Peru: strengthening legal enforcement and financing, shifting power to Indigenous Peoples and local communities, and embedding conservation values in public norms. These perspectives reflect fundamentally different theories of change, yet converge in their call for …

Individualized Bayesian Inference Identifies Novel Genetic Variants For Parkinson's Disease, Jin Ren, Yasaman J. Soofi, Md Asad Rahman, Qing Lu, Jinling Liu

Engineering Management and Systems Engineering Faculty Research & Creative Works

Parkinson's disease (PD) is a complex neurodegenerative disorder with a significant genetic component. While genome-wide association studies (GWAS) have been instrumental in identifying genetic variants associated with PD, the reliance on large sample sizes and population-level analyses may overlook variants with lower minor allele frequencies or individual-specific relevance. Individualized Bayesian Inference (IBI) offers a promising method to complement GWAS by identifying and prioritizing candidate genetic markers at both the individual and patients-like-me subgroup levels. This study evaluates the application of IBI to PD genetics, using GWAS as a baseline for comparison. We analyzed genetic data from the Fox Insight online …

Building Wellbeing Through Nature And Adventure For Justice-Involved Youth, Lewis Kogan, Meagan Ricks, Janna Coulter, Miranda Margetts, Lori Butterfield, Ben Ukoh-Eke

Outcomes and Impact Quarterly

Justice-involved youth often experience elevated levels of stress, mental health challenges, and reduced access to positive developmental opportunities. A nature- and adventure-based youth development program designed to strengthen resilience, self-efficacy, nature-connectedness, and well-being among justice-involved youth was piloted in 2025 to address these challenges. Pilot findings indicated improvements in resilience, self-efficacy, hopefulness, and connectedness to nature.

Prediction Of Decline In Ovarian Function In Turner Syndrome., Roopa Kanakatti Shankar, Tazim Dowlut-Mcelroy

Manuscripts, Articles, Book Chapters and Other Papers

Comment on

• The role of hormonal markers in predicting reproductive lifespan in girls with Turner syndrome-a retrospective study. van der Coelen S, Sas T, Richter-Unruh A, Braat D, Fleischer K, Nadesapillai S, IntHout J, van der Velden J.J Endocr Soc. 2026 Jun 5;10(7):bvag122. doi: 10.1210/jendso/bvag122. eCollection 2026 Jul.PMID: 42272567 Free PMC article.

Catalytic Synthesis Of Protoberberine Alkaloids And Their Evaluation As Selective Dopamine Receptor Ligands, Ashok Reddy Gudipally

Dissertations, Theses, and Capstone Projects

Dopamine regulates motor control, cognition, reward, motivation, and neuroendocrine signaling. Disruption of dopaminergic neurotransmission is closely linked to central nervous system disorders, including Parkinson’s disease, schizophrenia, addiction, and related neuropsychiatric conditions. Because these functions are mediated by multiple dopamine receptor subtypes with distinct roles in physiology and disease, the discovery of subtype-selective ligands remains an important goal in neuropharmacology. Within this context, protoberberine alkaloids, particularly tetrahydroprotoberberines (THPBs), are attractive molecular frameworks because they combine structural complexity with broad biological relevance, including measurable activity in CNS-related diseases. Prior work from our laboratory and others established (–)-stepholidine (1.60) as an important lead …

Cognitive-Affective And Somatic Depressive Symptom Domains Related To Psychological Mechanisms And Sociodemographic Factors, Danielle B. Hazeltine

Dissertations, Theses, and Capstone Projects

Major depressive disorder is prevalent, chronic, and heterogeneous, including cognitive- affective (e.g., maladaptive beliefs or thinking patterns and sad mood) and somatic (e.g., fatigue, appetite, or sleep changes) symptom domains. While depression domains have been long theorized, research examining psychological mechanisms underlying this distinction is limited. Preliminary research suggests cognitive-affective symptoms relate more strongly to cognitive mechanisms (cognitive bias, perseverative thought), somatic symptoms relate more strongly to behavioral mechanisms (behavioral inhibition/activation), and gender, race, and ethnicity moderate these relationships. This study examined whether cognitive-affective and somatic symptom domains differentially relate to cognitive and behavioral mechanisms, and whether these relationships are …

Alzheimer’S Disease And Related Dementias Risk Profiles And Health Literacy Among South Asian Seniors, Sandra A. Kennedy

Dissertations, Theses, and Capstone Projects

Alzheimer’s Disease and Related Dementias (ADRD) pose significant health challenges globally, with South Asian seniors in the United States facing elevated risks due to high rates of cardiovascular disease, diabetes, and limited health literacy. This study assessed dementia literacy and the prevalence of cardiovascular, psychosocial, and lifestyle risk factors among South Asian seniors in New York City, utilizing community-based participatory research (CBPR) principles in collaboration with India Home, a community-based organization. Fifty-six (N=56) South Asian seniors aged 55 and older (M = 69.05, SD = 6.36), primarily of Indian or Bangladeshi origin, participated in the study. Data collection involved a …

Intimate Partner Violence And Emotion Regulation Among Emerging Adults: Investigating The Roles Of Dispositional Mindfulness And Executive Function In The Context Of A Laboratory-Induced Stress Paradigm, Mikell Bursky

Dissertations, Theses, and Capstone Projects

Intimate Partner Violence (IPV) is a major public health concern that impacts an estimated 10 million men and women in the United States annually. IPV refers to a range of physical, sexual or psychological forms of aggression committed against a current or former romantic partner in the context of a relationship. The highest rates of IPV are observed in emerging adulthood, a developmental period between the ages of 18 to 25 that is significant for the transition from adolescence into adulthood, and the establishment of first meaningful intimate relationships. Although distal risk factors for IPV such as violence in the …

Sec-Saxs And Sans Analyses Of The Talin•Vinculin Complex, Gilbert Reyes

Dissertations, Theses, and Capstone Projects

Focal adhesions (FA) are integrin-based cell-matrix adhesion sites composed of adaptor proteins that facilitate the generation of traction forces important for biological functions such as cell migration, embryo development, wound healing, tissue organization and stability, and immune responses. Mature FA are observed when both autoinhibited multi-domain scaffolding protein talin and membrane-cytoskeletal protein vinculin are activated and interact thus promoting the assembly and function of FA. While research has resolved truncated sections of autoinhibited talin and recruitment of vinculin due to mechanotransduction that exposes cryptic vinculin binding sites (VBS), little is known about the global modifications of full length talin in …

Bridging Data Gaps In Retinal Imaging: From Structural Domain Adaptation To Topology-Aware Synthesis, Gözde Merve Demirci

Dissertations, Theses, and Capstone Projects

Comprehensive visualization of the retina is essential for diagnosing and monitoring blinding diseases such as Diabetic Retinopathy and Retinopathy of Prematurity (ROP), where pathological changes often extend beyond a single field of view. Despite significant advances in automated retinal image analysis, clinical deployment remains limited by two fundamental data gaps: a structural learning gap, arising from scarce expert annotations and poor generalization across imaging domains, and a spatial coverage gap, caused by the difficulty of acquiring multi-view retinal images in fragile populations. Although these challenges are often addressed independently, this dissertation argues that they are tightly coupled: accurate, …

Mapping The Water Quality Of Jamaica Bay, New York (1996-2024): Principal Component Analysis And K-Means Clustering, Sneha Srivastava

Dissertations, Theses, and Capstone Projects

Jamaica Bay, located along the southeastern coast of New York City, acts as a biodiverse estuary of wetlands, meadows, and salt marsh islands. The purpose of this study is to analyze the water quality conditions of the region over time, comparing locations around the bay to identify hyperlocal features that influence larger trends in the hydrological system. Ten variables were used as water quality indicators, including total Kjeldahl nitrogen, salinity, pH, Secchi disk depth, and total phosphorus, among others, across five stations in the bay, between 1994 and 2024. After data cleaning and standardization methods were applied, principal component analysis …

Investigating The Role Of Striatal Cholinergic Interneuron D2 Receptors In Behavioral Flexibility, Janyn J. Alfred

Dissertations, Theses, and Capstone Projects

Dopamine (DA) and acetylcholine (ACh) interact within the striatum to shape reward-based learning and choice behavior. DA D2 receptors on cholinergic interneurons (CIN D2Rs) were genetically knocked out to investigate their role in choice allocation using a two-lever matching paradigm. Behaviorally, both knockout (KO) and wild-type (WT) mice learned the initial task equally well. When shifted to asymmetric matching schedules (VI-90 vs. VI-180), ideal matching predicts that mice should allocate exactly 67% of their total responses to the rich lever. Neither group matched as predicted by the matching law. Instead, the KO mice showed a pattern where the higher rate …

Fluorescence-Based Methods For The Determination Of Selected Β-Lactam Antibiotics (Amoxicillin, Cefixime, And Cephalexin): A Review, Kardos Musheer Khorsheed, Tara Fuad Tahir, Ahmad F. Hama Sdiq

Polytechnic Journal

β-Lactam antibiotics constitute one of the most extensively prescribed classes of antimicrobial agents in human and veterinary medicine. However, their widespread use has raised growing concerns regarding antibiotic resistance, drug safety, and the presence of residual antibiotics in pharmaceutical products, biological fluids, foodstuffs, and environmental samples. As a result, the development of sensitive, selective, and rapid analytical methods for the determination of β-lactam antibiotics has become critically important. Among the available analytical techniques, fluorescence-based methods have gained increasing attention due to their high sensitivity, operational simplicity, low cost, and suitability for trace-level detection. This review presents a comprehensive overview of …

Cerebellar Atrophy In Pediatric-Onset Opsoclonus-Myoclonus-Ataxia Syndrome: A Large International Cohort Study, Rebecca Macrae, Kierstin Hederstedt, Christopher Cortina, Kumaran Deiva, Andrea Klein, Ming Lim, Thomas Rossor, Elizabeth A Sokol, Yasmin Khakoo, Nikita Malani Shukla, Timothy E Lotze, Wendy G Mitchell, Sarah Hopkins, Bo Zhang, Mark P Gorman

Faculty, Staff and Students Publications

Background and objectives: Pediatric-onset opsoclonus-myoclonus-ataxia syndrome (POOMAS) is a rare, neuroinflammatory syndrome that targets the cerebellum and can cause irreversible cerebellar structural changes, namely cerebellar atrophy. We investigated the frequency of cerebellar atrophy, as well as associated risk factors and functional outcome measures, using the largest active POOMAS registry.

Methods: This was a retrospective observational study of participants with POOMAS with disease onset from 1995 to 2025 using data from the multinational, multicenter POOMAS registry. Variables were compared between the cerebellar atrophy subgroups using the Fisher exact test or Wilcoxon rank-sum test.

Results: Of participants with follow-up imaging, cerebellar atrophy …

Inflammatory And Immunological Basis Of Periodontal Diseases, Thomas Van Dyke Dds, Phd

Metro Denver Dental Society Articulator Magazine

This review examines periodontitis as a chronic immune-mediated inflammatory disease shaped by interactions between the host response and oral microbiome. It explores how immune cells, inflammatory mediators and impaired resolution pathways contribute to connective tissue destruction and alveolar bone loss, while also considering links between periodontal and systemic inflammation. The authors highlight emerging research that may support more precise diagnostic and immune-based treatment strategies.

Volume 32, Issue 3

Metro Denver Dental Society Articulator Magazine

The 3rd Quarter 2026 issue of the Articulator explores the evolving clinical, professional and personal challenges shaping dentistry today, from emerging aligner technology and periodontal science to leadership and professional well-being. Articles include:

• MDDS President Dr. J.R. Franco reflects on family history, justice, patient advocacy and the responsibility of dentists to create meaningful change through organized dentistry.
• Dr. Amisha Singh examines how service and achievement can become tied to professional identity, and encourages dental professionals to find purpose and worth beyond accomplishment.
• Ms. Laura Ramsey explores advances in clear aligner therapy, including digital workflows, artificial intelligence and 3D printing, while …

Aligner Technology Today:, Laura Ramsey

Metro Denver Dental Society Articulator Magazine

Clear aligner therapy continues to advance through digital scanning, AI, treatment-planning software and emerging 3D-printing technologies. This article explores how these innovations are improving efficiency and expanding treatment options while emphasizing that successful outcomes still depend on sound diagnosis, biomechanics and clinical judgment.

Odontogenic Myxoma In Maxilla: A Case Report, Deepak Gupta, Ravinder Singh, Nazrana Maqbool B.D.S., Rakashree Chakraborty B.D.S., M.D.S.

The New York State Dental Journal

Odontogenic myxoma (OM) is a rare, benign but locally invasive intraosseous neoplasm. It is known to arise from the mesenchymal portion of the tooth germ. Although it is a slow-growing tumor, maxillary odontogenic myxomas can lead to increased morbidity caused by invasion into the maxillary sinus and middle cranial fossa. Further, it is also important to delineate the margins of OM to achieve a better treatment outcome. Here we present a case of a maxillary odontogenic myxoma in a 26-year-old female patient. The patient presented with swelling on the upper right side of the face. Computed tomography scan revealed a …

Um Dean's Report - Meeting The Challenge Of Educating Dentists In A Constantly Evolving Profession, Jacques E. Nör

The Journal of the Michigan Dental Association

University of Michigan School of Dentistry Dean Jacques Nör highlights the school's historical legacy during its 150th anniversary and details recent academic, clinical, and research progress. Key developments include the establishment of the state-of-the-art Digital Dentistry Center for in-house digital workflows, a pediatric certificate program in Social Epidemiology funded by a $2.1 million federal grant, the transition to Epic electronic health records (integrated with MyChart), and the community-based collaborative care rotation program in Marquette. The report also highlights national faculty leadership roles and $24.1 million in research funding.

An Observational Study Of The Effect Of Concomitant Levetiracetam On Apixaban Concentrations In A Hospital Cohort, Chazmyn Riley, Kevin Lam, Cristina Micale, Lynda Thomson, Douglas F. Stickle, Walter K. Kraft

Department of Pharmacology, Physiology, and Cancer Biology Faculty Papers

Despite the lack of evidence of a mechanism-based drug interaction, some professional organizations have advised caution coadministering apixaban and levetiracetam. Eligible patients taking apixaban with or without levetiracetam for any indication for at least 72 h were screened from the electronic medical records. Plasma samples from 77 patients were retrieved from salvaged clinical blood collections. Apixaban minimum and maximum concentrations (Cmin and Cmax) were compared using descriptive statistics in R. While the median Cmin and Cmax appear to be marginally elevated, there were no apparent differences relative to apixaban alone. These findings suggest no apparent interaction of levetiracetam and support …

Single Immunoglobulin Interleukin1-Related Receptor-Twist1 Axis Regulates Barrier Function In Neonatal Intestine., Aparna Venkatraman, Wei Yu, Heather Menden, Sherry M. Mabry, Joshua Wheatley, Shahid Umar, Susana Chavez-Bueno, Venkatesh Sampath

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND & AIMS: The genetic basis of impaired intestinal barrier function in preterm infants is poorly understood. Variants in single immunoglobulin interleukin1-related receptor, a negative regulator of Toll-like receptor signaling, have been identified in preterm infants with necrotizing enterocolitis. We hypothesized that single immunoglobulin interleukin1-related receptor variants associated with necrotizing enterocolitis impair gut barrier function to pathobionts. The aim of this study was to determine how single immunoglobulin interleukin1-related receptor genetic variants disrupt neonatal intestinal barrier integrity and promote susceptibility to Gram-negative bacteria implicated in sepsis and necrotizing enterocolitis pathogenesis.

METHODS: Transgenic mice and preterm infant-derived enteroids expressing SIGIRR variants …

Prediction Model For Children With Anaphylaxis Who May Not Require Emergency Department Care: A Multicenter Retrospective Cohort Study., Timothy E. Dribin, David Schnadower, Hugh A. Sampson, Yin Zhang, Nanhua Zhang, Stephen B. Freedman, Mark I. Neuman, David C. Brousseau, Rakesh D. Mistry, Stephanie Boyd, Yonatan Wolnerman, Patrick S. Walsh, Craig Vander Wyst, Vandana Thapar, Jonathan Strutt, Geetanjali Srivastava, Nidhi V. Singh, Christopher J. Russo, Christian D. Pulcini, Thuy L. Ngo, Jo-Ann O. Nesiama, Matthew M. Moake, Ashley M. Metcalf, Tamar R. Lubell, Juhee Lee, Chari D. Larsen, Karen Y. Kwan, Curtis L. Knoles, Kajal Khanna, Julia F. Freeman, Justin R. Davis, Alicia Daggett, Joanna S. Cohen, Ari R. Cohen, Wee-Jhong Chua, Sri S. Chinta, Brittany Boswell, Kelly R. Bergmann, Paul L. Aronson, Kenneth A. Michelson

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: The 2023 US Anaphylaxis Practice Parameter indicated that some patients receiving epinephrine in the community might avoid emergency department (ED) visits; however, the criteria and safety of this approach remain unproven.

OBJECTIVE: To derive and validate a clinical prediction model for identifying children at risk of receiving epinephrine after arriving at the ED.

METHODS: We conducted a 31-center retrospective cohort study of children aged 6 months to less than 18 years who received 1 prehospital dose of epinephrine for allergic reactions between 2016 and 2019. The outcome was receipt of epinephrine after ED arrival. We used least absolute shrinkage …

Skin Carotenoid Scores Are A Valid Approximation Of Fruit And Vegetable Intake Among Adults With Obesity, Stephanie B Jilcott Pitts, Qiang Wu, Elizabeth Gates, Melissa N Laska, Andrew R Dinardo, Nancy E Moran

Children’s Nutrition Research Center Staff Publications

Skin carotenoid score (SCS) as measured using pressure-mediated reflection spectroscopy has been validated among adults with normal and overweight body mass index, with little validation research among adults with obesity. Therefore, the purpose of this exploratory study was to examine the validity of SCS as an approximation of fruit and vegetable intake among adults with obesity. We used samples from adults with obesity from three prior studies: The first study examined the validity of SCS among 213 adults, 34 with obesity; the second, examined sensitivity of SCS to a β-carotene-rich juice intervention among 162 adults, 14 with obesity; the third …

Prevalence Of Acute Periapical Abscesses In Cannabis Users, Ilan Rotstein D.D.S., Joseph Katz D.M.D.

The New York State Dental Journal

Background: Cannabis use and cannabis-related disorders have increased significantly worldwide. The aim of this study was to assess the prevalence of acute periapical abscesses (PAs) in cannabis users.

Methods: Data from 1,799,122 patients were analyzed and the odd ratio (OR) of acute PAs and their association with cannabis use were statistically compared.

Results: Patients using cannabis showed significantly more PAs than nonusers. The difference was statistically significant. Following adjustment for diabetes and smoking comorbidities, the statistical difference remained significant.

Conclusion: The risk for acute PAs is significantly higher in cannabis users as compared to nonusers.