Digital Commons Network^™

Twim #261: Overwhelming Microbial Greatness, Jenny Stoval, Briana Lanzarotta, Luke Boseman, Nicole L. Podnecky, Angela Wilson

School of Medical Diagnostics & Translational Sciences Publications

Podcast annotation TWiM #261: Overwhelming Microbial Greatness from the weekly podcast series "This Week in Microbiology" (TWiM), a podcast where experts in microbiology discuss academic papers in their field in an informal way.

“Starlight Suite”: A Compositional Exploration Of The Argo Navis Constellations In Three Movements, Adam Miller

Student Publications

This thesis explores a compositional technique in which stellar constellations are arranged upon musical staves in a variety of iterations to create a basis from which to draw melodic, harmonic, and rhythmic material. These raw extrapolations of unaltered notes are then arranged and orchestrated into thematic music for full orchestra, centered around elements from the mythological background behind the constellations used. An accompanying analysis explains the specific applications of this technique within each movement of the work, the significance of each, and the variety of ways in which musical inspiration was drawn from the raw materials. The objective of this …

Dielectric Properties Of Surface-Doped Partially Stabilised Zirconia With Ceramic Nanomaterials, Lara Al-Hakeem, Shihab Zaidan, Wafaa Khalef

Journal of Applied Sciences and Nanotechnology

The microstructural and dielectric properties of Yttria-partially stabilized zirconia (Y-PSZ) were studied before and after sintering with BaTiO3 and WO3 doping. After sintering, FE-SEM analysis revealed increased grain coalescence and growth, with BaTiO3 causing 300 nm grain expansion and WO3 promoting uniform grain distribution without significant grain size increase (~200 nm). These microstructural changes dramatically altered dielectric behavior. All sintered samples had higher dielectric constants than pre-sintered ones between 100–1000 kHz due to reduced porosity and enhanced homogeneity. Dielectric constant was highest in BaTiO3-doped Y-PSZ at lower frequencies, while WO-doped showed superior frequency stability and lower dielectric loss across the …

Impacts Of Nutrient Addition And Disturbance On Coastal Dune Arthropod Communities And Trophic Interactions, Kayla Beitzel

Graduate Theses and Dissertations (2019 - present)

Coastal dune ecosystems face ongoing threats from human-mediated disturbance and altered resource availability. Because these dunes provide critical habitat for many organisms, including shorebirds, beach mice, and arthropods, changes in disturbance regimes or resource availability can impact plant communities and higher trophic levels by altering plant richness and productivity, which in turn influence arthropod abundance and diversity. To examine how disturbance and nutrient addition affect arthropod communities, we established twenty 5×5 m plots on Dauphin Island, crossing mechanical disturbance with a 10 g m⁻² addition of nitrogen, phosphorus, and potassium, replicated across five experimental blocks. Arthropods were sampled using three …

Exploring Synthetic Data Generation For Machine Learning And Statistical Analysis, Aditi S. Gajjar

Master's Theses

In the data-driven machine learning and statistical analysis world, real-world data availability is often constrained by privacy concerns, access restrictions, or resource limitations. To address these challenges, synthetic data provides a groundbreaking solution, enabling academics and data scientists to generate artificial datasets that mimic real-world data for model development and testing in a controlled, privacy-preserving environment. The syntheticDatasets package represents an R-based counterpart to Python's widely-used Scikit-learn dataset generators, adapted to meet the needs of statisticians, educators, and data scientists primarily working in the R programming ecosystem.

This thesis explores the design and implementation of the syntheticDatasets package, focusing on …

Performance Enhancement For Rufa: Rapid Urban Forest Assessment, Nicholas Tan

Master's Theses

Urban forests are crucial to the livability and resilience of cities, offering critical ecosystem benefits such as air quality enhancement, temperature regulation, and biodiversity. Managing said urban forests is essential to ensure their sustainability and adaptability to rapidly changing environmental and climate conditions. The Rapid Urban Forest Assessment (RUFA) tool was developed to address the need for a standardized approach to evaluating and comparing urban and community forestry programs. By analyzing and aggregating tree-specific data across California, such as canopy cover, tree counts, and diversity scores, RUFA assigns a comprehensive urban forestry score for each city. This score allows for …

An Analysis Of Neuroidal Memory Formation Within D. Melanogaster, Jerry Chang

Master's Theses

The Neuroidal model poses a neurobiologically plausible theory for modeling the brain. This symbolic network has been shown to capture realistic memorization behaviors using the JOIN algorithm. The model has also been recently improved by incorporating Watts-Strogatz small-worlds within its base structure. From the efforts of neuroscience researchers, we have access to the Drosophila melanogaster (D. melanogaster) fruit fly’s connectome, which has been found to also contain small-worlds in this thesis. By synthesizing the Ocellar Ganglion (OCG) region of Drosophila, we compare a digitized version of a real-world brain with an instance of the Neuroidal model. In this thesis, we …

Abiotic Stress Impacts On Macrophomina Root Rot And Nano-Encapsulated Citrus Oils To Control Fruit And Foliar Pathogens Of Strawberry, Marina J. Gutierrez

Master's Theses

Disease remains one of the major constraints to the productivity and economic success of the California strawberry industry. The most important soilborne pathogen is Macrophomina phaseolina, causing Macrophomina root rot (MRR). The most economically significant airborne pathogens include Botrytis cinerea, causing Botrytis fruit rot (BFR), and Podosphaera aphanis, causing powdery mildew (PM).

Disease severity of MRR is highly dependent on environmental factors. Therefore, understanding which abiotic stressors contribute most to disease development is crucial for effective management. A two-year field experiment at Cal Poly, SLO (2024 and 2025) evaluated the effects of drought stress, two elevated chloride …

Using Scenario-Based Design Activities To Explore Sociotechnical Thinking In Engineering Professionals, James M. Whealan

Master's Theses

Sociotechnical thinking is the ability to recognize the interconnectedness of both technical and non-technical dimensions such as environmental, economic, social, cultural, and political factors. Although traditional engineering curriculum often emphasizes technical knowledge and skills, research suggests that engineering work is inherently sociotechnical. While sociotechnical thinking is a critical engineering skill, relatively little is understood about the nature of it or the different aspects comprised within it. To that end, this study addresses the following research question: What sociotechnical factors do engineering professionals consider in a collaborative scenario-based design activity? To answer this question, we conducted a qualitative study of engineering …

Knowledge-Informed Deep Learning To Mitigate Bias In Joint Air Pollutant Prediction, Lianfa Li, Roxana Khalili, Frederick Lurmann, Nathan Pavlovic, Jun Wu, Yan Xu, Yisi Liu, Karl O’Sharkey, Beate Ritz, Luke Oman, Meredith Franklin, Theresa Bastain, Shohreh F. Farzan, Carrie Breton, Rima Habre

Epidemiology and Environmental Health Faculty Publications

Accurate prediction of atmospheric air pollutants is critical for public health protection and environmental management. Traditional machine learning (ML) methods achieve high spatial resolution but lack physicochemical constraints, leading to systematic biases that compromise exposure estimates for epidemiological studies. Chemical transport models incorporate atmospheric physics but require expensive parameterization and often fail to capture local-scale variability crucial for health impact assessment. This gap between data-driven accuracy and physical realism presents a major obstacle to advancing air quality science. We address this challenge through a novel physics-informed deep learning framework that integrates advection–diffusion equations and fluid dynamics constraints directly into neural …

The Food Truck: A Multi-Product Newsvendor With Expectile Risk, Sekyiwaah Nuamah

Electronic Theses and Dissertations

The Newsvendor Problem is a fundamental model in Operation Research and Supply Chain Management used to determine the optimal order quantity under uncertain demand to minimize expected costs.
This research extends the classical Newsvendor problem to a multi--product setting, addressing the risk of asymmetric cost structures faced by a food truck. This thesis introduces expectile risk measures to quantify and manage uncertainty in demand, moving beyond traditional risk metrics. To evaluate the impact of expectile-based decision-making, we analyze three types of demand distributions--simple, symmetric, and skewed. For skewed distributions, we apply linear spline inverse interpolation to derive expectile values from …

Spatial–Temporal Evolution Of The Box Springs Plutonic Complex, Riverside, Ca, Mateo Ospino Díaz

Loma Linda University Electronic Theses, Dissertations & Projects

The mechanisms of pluton emplacement into continental crust have long been debated in igneous geology, with early models emphasizing forceful processes such as ballooning, later contrasted by alternative emplacement mechanisms including diapirism, incremental assembly, stoping and, emplacement by sheets and dikes. These contrasting perspectives highlight the complexity of the construction of mid-crustal intrusions and the need for case studies that integrate multiple datasets. The Box Springs Plutonic Complex (BSPC) in the northern Peninsular Ranges Batholith (PRB) preserves structural, textural, and compositional features that record its emplacement and internal construction. Although its lithology, structure, and geochemistry have been described, an integrated …

(R2137) Smarandache Curved Ruled Surfaces And Their Characterizations According To Modified Orthogonal Frame In E^3, Gülnur Şaffak Atalay

Applications and Applied Mathematics: An International Journal (AAM)

In this study, the ruled surfaces generated by Smarandache curves are expressed according to the modified orthogonal frame defined according to both curvature and torsion of the given unit speed curve in 3-dimensional Euclidean space; some special characterizations of these surfaces such as developability, striction curves, distribution parameters are given. In addition, some examples of these surfaces are given in graphical form. We use Maple to draw the graphs of the examples.

(R2130) Cusum-Test For Unconditional Variance Change Detection In Bilinear Garch Models, Edoh Katchekpele, Abdou Kâ Diongue, Ben Célestin Kouassi

Applications and Applied Mathematics: An International Journal (AAM)

We examine CUSUM-type test for detecting changes in unconditional variance within Bilinear GARCH models. We derive the asymptotic distribution of the test statistic under both null and alternative hypotheses and assess test effectiveness in identifying single structural breaks. Simulation studies support our theoretical results and demonstrate the practical utility of the test.

Advancements In Visualization, Post-Processing And Ai-Enhanced Modeling Of Multi-Scale Micromechanics For Composite Materials, Joao Guilherme Brites Rei

Masters Theses

This study addresses some of the primary deficits of a localization/homogenization workflow for composite materials by focusing on the visualization and enhancement of models based on GMC and HFGMC, with emphasis on their implementation within the NASMAT ecosystem.

This thesis details the development of two dynamic, ParaView-based plugins that convert large hierarchical simulation outputs into interactive insights. While NASMATDiscreteElement systematizes RUC creation with transparent parametrization in a reproducible GUI, NASMATExplorerRUC enables the inspection of deeply nested datasets through accurate cell picking and synchronizes comparisons between parent and child views. Additionally, a shallow U-Net neural network is optimized on HFGMC data …

Sleep-Disordered Breathing Subtypes And Future Diet Quality In The Multi-Ethnic Study Of Atherosclerosis, Kaitlin S Potts, Cecilia Castro-Diehl, Tianyi Huang, Alexis C Wood, Jerome I Rotter, Stephen S Rich, Tamar Sofer, Susan Redline, Heming Wang

Children’s Nutrition Research Center Staff Publications

Objectives: Sleep-disordered breathing (SDB) and diet quality impact cardiometabolic disease, but few studies have examined if SDB influences diet quality. This study estimated the association between SDB subtypes (with and without sleepiness) and future diet quality in the Multi-Ethnic Study of Atherosclerosis.

Methods: Probable SDB was characterized by self-reported physician-diagnosed sleep apnea (PDSA) or habitual snoring and subtyped by presence or absence of sleepiness. A food frequency questionnaire measured diet 1.6 years before, and 7.8 years after SDB assessment. Diet quality was measured with the Alternate Healthy Eating Index-2010 (AHEI). Mean differences in AHEI at follow-up by SDB subtypes were …

Integration Of Oral Health Assessment In Medicare Visits: A Survey Of Primary Care Physicians In Montana And Their Role In Patients Aged 65+, Cheyenne R. Smith

Dental Hygiene ETDs

The integration of oral health assessments into primary care settings has been strongly advocated to enhance access to care for elderly individuals. Medical and dental professionals recognize the critical connection between oral health and systemic health. Physicians can play a key role in enhancing oral health care by incorporating an oral health assessment into routine general health appointments, such as the Medicare Annual Wellness Visit (AWV). Physicians in Montana were invited to participate in an anonymous study to gather their opinions on conducting oral health assessments in primary care settings, identify barriers to providing these assessments, and evaluate their knowledge …

Examination Of Differences Of Similar-Sized Martian Craters At The Simple-Complex Transition As Revealed By High-Resolution Imaging And Stereo-Derived Topography, Lindsey Dorn

Geosciences

Impact craters on Mars have a wide range of morphologies, and the relationship between the mechanics of their formation and their eventual morphologies is still not completely understood. By examining craters within a narrow diameter range, impact energies are constrained to similar values - enabling focused investigation of target properties and their influence on crater excavation and modification. There is a transition from simple bowl-shaped depressions to complex craters with terraced walls and central floor structures with increasing crater diameter. We analyzed target influences on morphology by examining eleven well-preserved craters of varying morphologies in the 7 to 9 km …

Multi-Scale Insar Investigations Of Anthropogenic And Natural Processes In The American Southwest, Emily Jo Graves

Geosciences

Arid regions in the American Southwest undergo measurable surface deformation driven by variations in subsurface fluid pressure, and other natural and anthropogenic processes. These processes range from regional scale aquifer dynamics to local oil and gas wellsite activities. This dissertation produces and then utilizes InSAR-derived average velocity fields and displacement time series to reveal and understand these multi-scale processes, their interactions, and impacts for a portion of the American Southwest. Chapter 1 discusses the climate and natural and anthropogenic processes present in our study area. In Chapter 2, we generate detailed large scale average velocity maps that reveal deformation associated …

Evaluating Utilidor Performance And Ground Temperature Variability In UtqiaġVik, Tate Rachow

Geosciences

Permafrost degradation in Arctic regions poses increasing risks to infrastructure as climate warming accelerates thaw processes, alters hydrology, and deepens the active layer. In Utqiaġvik, Alaska, utilidors— utility conduits—play a vital role in protecting water and wastewater services, yet their thermal performance under changing conditions remains poorly constrained. This thesis evaluates the thermal behavior of the Site U-1 direct buried pipes on Stevenson Street using historical thermistor resistance data converted to temperature, combined with calibrated two- dimensional TEMP/W numerical models. The models incorporate layered backfill materials and polyurethane insulation, while also simulating operational influences of water and wastewater temperatures. Calibration …

Bridging The Gut And The Heart-Exploring Pathophysiology, Risk Factors, And Therapeutic Implications Of Cardiovascular Disease In Inflammatory Bowel Disease, Diana Othon-Martinez, Sylvia Valeria Peña-Muñoz, Margarita Riojas-Barrett, Genesis Vidales-López, Josué Moisés Sánchez Guzmán, Lukasz Kwapisz

School of Medicine Publications

Inflammatory bowel disease (IBD), including Crohn’s disease and ulcerative colitis, is a chronic systemic immune dysregulated disorder affecting the gastrointestinal tract that often has extraintestinal manifestations. Limited data exist on the cardiovascular (CV) implications of IBD, but a higher prevalence of CV disease (CVD) has been observed compared to the general population, resulting in increased mortality risk. This review examines the pathophysiology and risk factors linking IBD to CVD, highlighting several key mechanisms: The “lipid paradox” in active IBD, arterial stiffness and endothelial dysfunction, proinflammatory cytokine activity, gut microbiota dysbiosis, and drug-induced myocardiopathy. The main findings include information about IBD …

A Narrative Review Of Dual Loyalty Conflicts In Custodial Settings And Implications For Community Practice, Michelle Suh, Marc David Robinson, Holland Kaplan

Center for Medical Ethics and Health Policy Staff Publications

Dual loyalty dilemmas are conflicts between health care professionals' obligations toward their patients and third-party interests. These conflicts are more common and starker in custodial settings, such as jails and prisons, military detention facilities, immigration detention centers, and involuntary psychiatric institutions. Despite encountering patients in custody, health care professionals (HCPs) in community settings have limited knowledge and training. In this narrative review, we examined dual loyalty conflicts faced by HCPs working in custodial settings and then applied the identified themes to community-based hospitals where HCPs care for patients in custody. We searched databases for original papers relating to patients in …

Survey Of U.S. Reproductive Medicine Clinicians’ Attitudes On Polygenic Embryo Screening, Rémy A Furrer, Dorit Barlevy, Aayushi Gandhi, Shai Carmi, Todd Lencz, Stacey Pereira, Gabriel Lázaro-Muñoz

Center for Medical Ethics and Health Policy Staff Publications

Polygenic embryo screening (PES) is used to screen embryos for their genetic likelihood of developing complex conditions and traits. We surveyed 152 U.S. reproductive endocrinology and infertility specialists (REIs) on their views of PES. While most respondents (97%) were at least slightly familiar with PES, general approval of PES was low (12%), with the majority expressing disapproval (46%) or uncertainty (42%). A majority (58%) believed risks outweigh benefits, while only 16% felt benefits outweigh risks. Most clinicians (85-77%) were very or extremely concerned about low accuracy, confusion over results, false expectations, and eugenics. Nonetheless, when asked to vote on whether …

The Effect Of An English Mother Tongue On Spanish Language Acquisition, Erin Wallace

Honors Theses

This study investigates how English influences the Spanish acquisition of English-speaking learners by analyzing written errors, background factors, and interview data. Using two linguistic classification frameworks, it identifies both the types and underlying causes of errors, revealing that gender and plural agreement issues, verb forms, word order problems, and subjunctive misuse are the most frequent difficulties. These errors primarily stem from first-language transfer, overgeneralization, and instructional gaps. The findings highlight the need for targeted practice, contrastive analysis, and greater exposure to authentic Spanish input. Despite limitations such as small sample size and incomplete interview participation, the study offers direction for …

An Assessment Of The Relationship Between Stress And Glucose Levels In Medical Laboratory Science Students, Jayla Edwards

Honors Theses

Stress is prevalent among college students. Prolonged, unmanaged stress can affect physiological processes such as glucose metabolism. This study aimed to examine the effects of stress on glucose levels of medical laboratory science (MLS) students at the University of Southern Mississippi (USM). To achieve this, the participants’ perceived stress levels and glucose levels were measured at the beginning of the semester and during finals week, a period when college students typically experience the most stress. There were nineteen MLS students that participated. Data was collected at two phases: phase 1 at the beginning of the semester and phase 2 during …

Beyond The Classroom: The Role Of Cultural Capital In College-To-Career Transitions, Keynijah Sullivan

Honors Theses

For many college students, the transition into the workforce is shaped not only by academic knowledge, but also by access to less visible resources, often referred to as cultural capital. Research has been done in the past that discusses how cultural capital is transferred through families, its role in academic settings, and its impact on employability. However, there is a gap in research focusing on the role of cultural capital in college-to-career transitions. This study uses qualitative methods, specifically semi-structured interviews with junior and senior undergraduates at the University of Southern Mississippi. The purpose of this study is to better …

A Story Of Life Through Death: An Osteobiography Of Two Individuals From The Late Saxon Period, Isabella Ragazzi

Honors Theses

The Anglo-Saxons were the most influential inhabitants of the British Isles in the years AD 450-1066, reigning during a time marked by much warfare, pestilence, and famine. Their impact on British history is still seen through archival materials as well as the archeological and bioarchaeological records. A recent development in the field of bioarchaeology is the osteobiography, which places skeletal analysis in context of the overall culture to create the most complete interpretation of the individual and their life history. Involving both traditional bioarchaeological evaluation and isotopic analysis, this method was applied to two Anglo-Saxon skulls donated to the University …

Nursing Students’ Attitudes Regarding Technical Standards For Entrance Into A Bachelor Of Science In Nursing Program, Jordyn Cook

Honors Theses

Admission into a Bachelor of Science in Nursing program requires students to meet specific criteria including a non-negotiable set of technical standards. Technical standards encompass physical abilities including twisting, bending, and handling objects of varying weights (Good Samaritan College of Nursing and Health Science, n.d.). While physical capabilities may hold significance in bedside nursing, the American Nurses Association does not establish specific physical qualifications (American Nurses Association, 2010). Due to admission criteria and technical standards, individuals with disabilities are rarely found among career nurses and nursing students (Leslie & Miller, 2020).

This study aims to determine nursing students’ attitudes towards …

A Case Of Monocular Diplopia In The Setting Of High-Grade Urothelial Bladder Carcinoma Treated With Pembrolizumab, Leanne Dumeny, Joana Nuraj, Roshni Bisoondial, Nicole Moscoso, Arvinder Singh, Lorena Bonilla Md

Nursing & Health Sciences Research Journal

Case Presentation: We present the case of a 70-year-old male with a history of highgrade urothelial carcinoma who had been treated with multiple cycles of immune checkpoint treatment, pembrolizumab, presenting to the emergency department with worsening bone pain, abdominal discomfort, and hematuria.

Clinical Course: He reported blurry vision and monocular diplopia in the right eye for the past month. Physical examination revealed an inability to fully track with the right eye along with fatigue-induced diplopia, raising concerns for metastatic or immunotherapy-related ocular involvement. Imaging primarily revealed metastatic disease in the right orbital apex involving the rectus muscles, intraconal fat, and …

Beyond Baseball: A Case Study On The Multipurpose Venue Management Practices Of Giants Enterprises, Collette Grace Madden

Experience Industry Management

The success of sports organizations no longer relies on team performance and game attendance. Giants Enterprises utilizes many guest engagement and destination development strategies to expand the brand reach of the San Francisco Giants. The purpose of this study was to examine how Giants Enterprises has positioned Oracle Park and Mission Rock as premier event destinations beyond baseball, with a focus on best practices in event diversification, experience design, and placemaking. A case study was conducted on Giants Enterprises to analyze what event diversification, experience design, and placemaking tactics were utilized as well as their effectiveness. The results of this …