Digital Commons Network^™

Autonomous Terrain-Mapping Robot For Search And Rescue, Soumil Joshi, Seann Calub

Electrical Engineering

This report documents the design, modular testing, and challenges faced while developing an autonomous terrain-mapping robot intended to navigate to a destination waypoint and deliver a small payload for search-and-rescue applications. The system combines a LiDAR sensor, an IMU sensor, and a Raspberry Pi 3B as the onboard processor, and an ESP32 microcontroller interfacing with motor drivers over a four-wheel chassis. A companion mobile application was developed to enable remote control and monitoring of the robot over a WiFi hotspot connection. A lithium-ion battery pack supplies power to all onboard components, with power budgets verified against component datasheets. Testing progresses …

Transoral Endoscopic Stapled Diverticulotomy For Pediatric Esophageal Diverticulum: A Case Report, Nadeen Alturki, Huma Quraishi, Keith A. Kuenzler

Manuscripts, Articles, Book Chapters and Other Papers

Introduction

Case presentation

Loss Of Palmitoylation Impacts The Interaction Between The Organic Anion Transporting Polypeptide (Oatp) 1b1 And Oatp1b3., Cecilia E. Villanueva, Whitney M. Nolte, Priscilla Flores-Ascencio, Bruno Hagenbuch

Manuscripts, Articles, Book Chapters and Other Papers

The organic anion transporting polypeptide (OATP) 1B1 and OATP1B3 are hepatic transporters that mediate the uptake of numerous therapeutics like antibiotics and statins. Various post-translational modifications, eg, phosphorylation and glycosylation, have been shown to impact OATP1B1 and OATP1B3 function and localization. S-palmitoylation (also known as S-acylation or palmitoylation) is a reversible post-translational modification that adds palmitic acid (C16:0) to cysteine residues and can influence a protein's function, localization, and protein-protein interactions. In this study, we investigated and characterized palmitoylation in OATP1B1 and OATP1B3. Using site-directed mutagenesis and acyl-resin-assisted capture assays, residue Cys24 was identified as the palmitoylation site for both …

How To Assess Ventricular Function By Fetal Echocardiography: Expert Guidance From The Fetal Heart Society., S R Patel, Nitin Madan, L Eckersley, Z Roytman, M Perez, L Gindes, L K Hornberger

Manuscripts, Articles, Book Chapters and Other Papers

No abstract provided.

Functional Assessment Of A Convergent Gene Network Underlying Allergic Diseases And Ige., Pradeep Eranti, Raphaël Vernet, Christophe Linhard, Bing Ge, Laura Beaumier, Anne-Marie Madore, Sébastien Chanoine, Bénédicte L. Tremblay, Xiaojian Shao, Isabelle Pin, Mark Lathrop, Elin Grundberg, Valérie Siroux, Tomi Pastinen, Catherine Laprise, Emmanuelle Bouzigon, Florence Demenais

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: The relationships between allergic diseases (AD) and IgE levels are complex.

OBJECTIVE: We sought to identify genes associated with AD and IgE having close proximity in the interactome and to elucidate the associated biological mechanisms.

METHODS: We integrated a comprehensive interactome with data from genome-wide (GWAS) and epigenome-wide (EWAS) association studies of AD and IgE levels, respectively. We used the SigMod algorithm to identify gene modules enriched in AD- and IgE-associated signals. We performed a connectivity analysis of these two modules to characterize direct cross-trait connections. Finally, we conducted an in-depth functional analysis of the directly-connected AD and IgE …

How To Tell A True Food Allergy From An Intolerance, Sarah Gubara, Aarti Pandya

Pediatrics in Practice: A CME Podcast

This episode explains the key history elements and symptom timeline that differentiate an IgE-mediated food allergy from an intolerance or sensitivity, so clinicians and parents can make safer, evidence-based decisions. Aarti Pandya, MD, Medical Director of the Food Allergy Center at Children’s Mercy, reviews symptom patterns, timing and red flags for anaphylaxis. Learn about food allergy testing, IgE-mediated food allergy, anaphylaxis action plan, epinephrine auto-injector, food intolerance and when testing is truly warranted.

Click here to stream the podcast episode.

A Framework For Top-K Queries With Constrained Preferences, Kyriakos Mouratidis, Nikolaos Chaloulakos, Bo Tang

Research Collection School Of Computing and Information Systems

Traditional rank-aware processing assumes a dataset that contains available options to cover a specific need (e.g., restaurants, hotels, etc) and users who browse that dataset via top-k queries with linear scoring functions, i.e., by ranking the options according to the weighted sum of their attributes, for a set of given weights. In practice, however, user preferences (weights) may only be estimated with bounded accuracy, or may be inherently imprecise due to the inability of a human user to specify exact weight values with absolute accuracy. Motivated by this, we define the constrained-preference top-k (CT) query. Given an approximate description of …

Income Tax Over-Withholding And Household Investment Decisions, Xi Novia Chen, Jungbae Kim, Ben Lourie, Chenqi Zhu

Research Collection School Of Accountancy

Over three-quarters of U.S. taxpayers over-withhold taxes, leading to tax refunds. This study explores how over-withholding impacts stock investments by comparing individuals' investment patterns from wages and tax refunds. We find that while some portion of tax refunds are promptly invested, the investment rate is lower than that of wages. This suggests that over-withholding, which alters the label and timing of wages into refunds, influences investment behavior. Our cross-sectional analysis indicates that the differential propensity to invest wages versus tax refunds are more pronounced for individuals with automatic investment setups and lower financial sophistication. These findings underscore the importance of …

Analisis Environmental Kuznets Curve Dan Foreign Direct Investment Di Sulawesi, Fadel Firmansyah, Meity Ferdiana Paskual, Laendatu Paembonan, Musdayati Musdayati, Muhammad Ichsan

Jurnal Ekonomi dan Pembangunan Indonesia

This study examines the relationship between economic growth, foreign direct investment (FDI), and environmental quality across the six provinces of Sulawesi within the Environmental Kuznets Curve (EKC) framework. Using panel data for 2015–2024, the study applies the Panel Autoregressive Distributed Lag (Panel-ARDL) model with the Pooled Mean Group (PMG) estimator. The results confirm a long-run EKC relationship, indicating that environmental quality initially deteriorates and subsequently improves as income increases. Meanwhile, FDI has a negative but statistically insignificant effect, while short-run dynamics remain heterogeneous across provinces due to differences in economic structures, investment characteristics, and environmental management

Procedural Drift: How Judicial Restraint Enables Legalized Backsliding, Dessie Otachliska

Washington and Lee Law Review

This Article introduces Procedural Drift, a new theory of constitutional erosion in which legality itself enables democratic decline. Legal forms remain intact, but their constraining force quietly recedes as procedural doctrines withdraw courts from sites of contestation. Executive power expands not by defying law, but by strategically complying with it—exploiting judicial restraint to evade review.

Building on Bruce Ackerman’s theory of constitutional moments and Kim Lane Scheppele’s concept of autocratic legalism, this Article develops a U.S.-specific account of democratic backsliding that is lawful, gradual, and institutionally embedded. It traces how judicial restraint—operating amid partisan alignment and epistemic fragmentation—erodes legal checks …

Reimagining International Investment Law For The Age Of Minerals, Taylor Nchako

Washington and Lee Law Review

New technologies––from artificial intelligence (AI) and electric vehicles to medical devices and consumer electronics––demand an ever-increasing amount of minerals like lithium, cobalt, and copper. The United States requires these aptly named “critical” minerals to develop AI infrastructure, advance the clean energy transition, and remain economically competitive. As technology continues to advance at an astonishing pace, the U.S. has grown increasingly interested in securing critical minerals from sources in Africa. To obtain critical minerals, the U.S. must utilize investment treaties in its business dealings with African countries. At the same time, international investment law has garnered increased attention due to a …

Litigating The Youth Mental Health Crisis: Mechanisms To Regulate Addictive Social Media Design, Talia Elliott

Washington and Lee Law Review

While social media offers real benefits to users, such as providing access to information and facilitating the free exchange of ideas, excessive social media use is associated with increases in anxiety, depression, and other serious mental-health harms. Social media platforms are designed to maximize profit by capturing user attention, resulting in interfaces that are dangerously addictive and prone to exposing users to harmful content. Currently, social media users alone bear the burden of navigating the dangers of social media. This is untenable. Young users, whose less developed brains leave them more vulnerable to addictive design features, find self-regulation especially challenging. …

Classification Of Aircraft Checklist Usability Problems Using Natural Language Processing, Borvorn Kasemtanakul

Doctoral Dissertations and Master's Theses

The use of checklists has been identified as a recurring issue in aviation accident investigations, highlighting the need for continued improvement in aircraft checklist design. However, existing aviation safety taxonomies do not systematically address checklist usability problems. Therefore, a systematic classification of these problems is needed to support the extension of existing aviation safety taxonomies and to facilitate safety data analysis for checklist design improvements. Furthermore, applications of Natural Language Processing (NLP) techniques in aircraft checklist research remain underexplored, despite their potential to identify meaningful patterns in textual safety data.

This exploratory research aimed to develop a data-driven classification of …

Compact Cislunar Orbital Representation For Efficient Tracking In Cislunar Space, Mauro Palomo

Doctoral Dissertations and Master's Theses

Expanding lunar missions require efficient, interoperable orbital tracking where existing methods fail to scale. Two-Line Elements (TLEs) lack applicability beyond geocentric regimes, while high-accuracy Orbit Ephemeris Messages (OEMs) require excessive data volumes and bandwidth to communicate. To support increased lunar traffic, this paper proposes the Compact Cislunar Orbital Representation (CCOR), providing a novel framework that strikes a balance between TLE level efficiency and OEM-level fidelity, ensuring multi-actor communication for missions in the cislunar region. By evaluating the framework across six diverse cislunar trajectories, this study demonstrates the CCOR’s robustness and ability to compress thousands of OEM state vectors into a …

Experimental-Motion-Driven Cfd Investigation Of Slosh Dynamics In Propellant Tanks Of Spacecraft And Launch Vehicles, Priyanshu Savaliya

Doctoral Dissertations and Master's Theses

Liquid sloshing in partially filled propellant tanks can generate transient forces and moments that affect spacecraft and launch vehicle stability, guidance, and control. This research develops a one-way experimental-to-Computational Fluid Dynamics (CFD) integration framework to investigate free-surface slosh behavior under realistic excitation conditions.

The overarching goal of this thesis is to develop and evaluate a one-way experimental-motion-driven computational framework for predicting liquid slosh response in a partially filled cylindrical tank. Rather than relying on idealized sinusoidal inputs, this work uses experimentally measured actuator-feedback motion as the prescribed excitation for high-fidelity CFD. The central objective is to establish the experimental and …

A Machine-Learning-Based Systematic Framework For Modeling Compression And Recompression Indices For Florida Soils, Michael Morales

Doctoral Dissertations and Master's Theses

This thesis develops a machine-learning framework for estimating the compression index and the recompression index of Florida soils from routinely measured index properties, and reports two studies that build it. Consolidation settlement design requires both indices, and both are obtained from the incremental-loading oedometer test, which occupies a specimen for one to two weeks; the index tests that accompany it are complete within hours. Empirical correlations have filled that interval since the 1950s, but their coefficients are calibrated on specific soil populations and transfer poorly between regions. The first study analyzes 376 consolidation tests compiled for the Florida Department of …

Enhancing Virtual Reality Cockpit Procedure Training With Haptic Feedback, Christian K. Jaedicke

Doctoral Dissertations and Master's Theses

Pilot training is time-consuming and costly, and not all phases require full-flight simulators or actual aircraft. Virtual reality (VR) offers a potential means to reduce cost and duration while supporting practical cockpit procedure training. While prior research in the VR domain suggests that providing haptic feedback can support training of muscular control and increase perceived immersion, it remains unclear whether haptic feedback improves spatial cognition in an unfamiliar VR environment. This study examined whether haptic feedback and cockpit complexity affected response time and position error under limited-visibility, time-constrained conditions in a VR cockpit environment (i.e., a quasi-blindfold cockpit check).

Grounded …

Evaluating The Safety Efficiency Of U.S. Air Traffic Control Tower Operations Using Data Envelopment Analysis, Kenneth James Gilbert Ii

Doctoral Dissertations and Master's Theses

Air traffic control (ATC) tower safety efficiency remains inadequately measured despite critical workforce challenges, including staffing shortages, training pipeline constraints, and geographic retention difficulties. This mixed-methods study developed and validated a comprehensive framework for measuring tower safety efficiency by integrating subject-matter expert insights with multi-model data envelopment analysis (DEA) across 66 Federal Aviation Administration (FAA) tower facilities from 2016 to 2024. Six focus group interviews with experienced professionals (100% with > 20 years of experience), averaging 96.4 minutes, identified critical efficiency factors through systematic coding, achieving substantial inter-rater reliability (Cohen's kappa 𝜅 = .68). Qualitative findings showed that staffing shortages don't …

Optimal Integrated Cfd-Gnc Model For Drag-Based Reentry Dynamics, Sebastian Lopez

Doctoral Dissertations and Master's Theses

This research focuses on optimizing the control of a drag-maneuvering, Starship-class re-entry vehicle by closely integrating high-fidelity aerodynamic data derived from Computational Fluid Dynamics (CFD) simulations, specifically using StarCCM+. The aerodynamic models, tailored to the unique geometry of a drag-maneuvering body, are seamlessly incorporated into a guidance, navigation, and control (GNC) framework. This integration enables closed-loop CFD simulations with real-time control feedback, allowing for direct analysis and optimization of vehicle stability, trajectory, and control demands throughout the re-entry process.

Building upon the work of Gaglio and Bevilacqua, this advanced CFD-GNC model introduces high-order aerodynamic effects, such as aerodynamic moments and …

Comparative Analysis Of Task Scheduling In Multi-Tier Fog-Cloud Computing: From Classical Approaches To Greedy Multi-Objective Optimization, Zafril Rizal M. Azmi, Najmul Haque, Saydul Akbar Murad

Faculty Publications

Fog computing extends cloud services to the network edge, enabling low-latency processing for time-sensitive applications. However, scheduling complexity significantly increases due to heterogeneous resources, dynamic workloads, and strict Quality-of-Service (QoS) constraints. Although numerous scheduling techniques have been proposed, existing studies often assess only a narrow subset of algorithms or rely on offline metaheuristics unsuitable for real-time environments. This paper presents a comprehensive comparative evaluation of twelve scheduling algorithms, including five classical, one heuristic, and six metaheuristic-inspired approaches, within a realistic 20-node multi-tier fog-cloud topology. Across 1,365 experiments spanning seven utilization levels, we analyze each algorithm’s deadline adherence, load distribution, and …

Taking The Thumb Off The Scale: Rebalancing Parental And Children’S Rights To Empower Child Protective Services, Sebastian Wagner

Utah Law Review

This Note provides background on the current legal framework of state prevention of child maltreatment in the United States. It discusses parental rights and the Parental Rights Doctrine, child rights in the United States, and how states prevent child maltreatment through child protective service agencies.

This Note also explores the legal landscape surrounding the balance of parental rights and children’s rights in child welfare cases. One of the central issues in the current framework is how the Parental Rights Doctrine can significantly limit the state’s ability to intervene in cases where children are at risk. State intervention, governed by vague …

Pathologic Misclassification Of Renal Cell Carcinoma In Adolescents And Young Adults, Megan Stout, Derek B. Allison, Leslie Peard, Will Cranford, Yana B. Feygin, Kara Mcabee, Christopher J. Mclouth, Patrick J. Hensley, Jason R. Bylund, Amanda F. Buchanan

Biostatistics Faculty Publications

Background and Objective: Diagnosis of TFE3-rearranged RCC (tRCC) requires a pathologist’s expertise and a high index of suspicion. The objectives of this study were to determine the rate of misclassification of RCC in the adolescent and young adult (AYA) patient population, identify any clinically significant impact associated with misclassification, and compare oncologic outcomes between patients with tRCC vs. other RCC subtypes. Methods: All patients < 50 years who underwent renal surgery and were diagnosed with renal cell carcinoma at a single institution from 2004 to 2019 were identified retrospectively. Pathology specimens were reviewed by a genitourinary pathologist. Changes in a pathologic diagnosis were denoted as “misclassified.” Clinical and oncologic data were analyzed comparing misclassified and non-misclassified groups as well as tRCC and other RCC diagnoses. A survival analysis was used to compare oncologic outcomes. Results: In total, 169 patients were identified, and 20/169 (11.8%) patients were misclassified after pathologic review, with 50% (n = 84) of this cohort < 40 years of age at diagnosis. There were significant differences between misclassified and non-misclassified groups with respect to race (p = 0.002), Appalachian county status (p = 0.035), and initial RCC subtype (p = 0.004). There were no significant differences in clinical or oncologic outcomes between tRCC and other RCC groups. There were no significant differences in time to death or recurrence in misclassified vs. non-misclassified patients (p = 0.83 and 0.68, respectively) or between patients with tRCC and other RCC subtypes (p = 0.45 and 0.062, respectively). Conclusions: >10% of patients with RCC were misclassified on the original pathologic diagnosis; however, there was no significant impact on oncologic outcomes. This identifies diagnostic blind spots for tRCC diagnosis in a young cohort. Perhaps reflex IHC …

Assessing Hpv And Hpv Vaccine Awareness And Perception Amongst Undergraduate Students, Maura Hawkins

Honors Theses

Human Papillomavirus (HPV) is one of the most common sexually transmitted infections in the United States. Vaccination rates remain low among college-aged students despite an effective vaccine being available. This study investigates HPV and HPV vaccination-related knowledge, beliefs, and perceptions among undergraduate students to inform targeted intervention strategies. Participants included undergraduate students (n = 19) who attended one of three focus groups conducted in April 2025 at the University of South Alabama. Structured interview guides explored HPV knowledge, perceived risk and severity, attitudes towards vaccination, autonomy in health decision-making, trust in health information sources, and preferred educational strategies. Discussions were …

Religiosity And Female Autonomy In Indonesia, Milda Irhamni

Economics and Finance in Indonesia

This study estimates the effect of religiosity on married women’s autonomy within households in Indonesia using panel data from the 2007 and 2014 rounds of the Indonesia Family Life Survey (IFLS4 and IFLS5). Women’s autonomy is measured by the wife’s decision-making power relative to her husband across eighteen household decisions, complemented by indirect proxies such as asset ownership and contraceptive use. Applying household fixed-effect and IV estimation to control for endogeneity, the analysis finds little robust evidence that religiosity systematically reduces female autonomy, suggesting that any negative association is weak and sensitive to specification.

Has Plant Domestication Compromised Plant Defensive Chemistry? Aphid Induced Stress In Tomatoes, Nhi Do, Satinderpal Kaur, Minxing Zhu, Esther N. Ngumbi

MICRO-CCS student projects

Tomato plants have natural defensive mechanisms.

Direct: Phenolics are secondary metabolites that can protect the plant by intoxicating the herbivores and/or producing strong repulsive odors.

Indirect: VOCs, Volatile Organic Chemicals, are gas phase signals that attract the predators of the attacking herbivore to the plant.

Domestication of plants may chemically alter these defenses by prioritizing fruit production over defensive traits.

We hypothesize that wild/ancient tomato plants would have a greater quantity of volatiles and increased concentration of leaf total phenolics compared to cultivated tomatoes during aphid herbivory.

What We Know About Accounting Ratios: Methodological Considerations, Wojciech Kuryłek, Oskar Kowalewski

Studia i Materiały Wydział Zarządzania Uniwersytet Warszawski

Purpose: This paper provides a comprehensive literature review of the methodological aspects of financial ratio analysis, consolidating dispersed knowledge on the computation, statistical properties, and appropriate usage of accounting ratios.

Design/Methodology/Approach: The study adopts a narrative literature review methodology, systematically surveying published research on financial ratio distributions, normality testing, data transformations, outlier handling, the proportionality assumption, dimensionality reduction techniques, compositional data analysis, and recommended ratio sets for corporate financial research.

Findings: Financial ratios predominantly deviate from normal distributions, exhibiting skewness, excess kurtosis, and sensitivity to outliers. Transformation techniques such as logarithmic, square root, and Box‑Cox methods yield mixed results in …

Studia I Materiały 1/2026 (44)

Studia i Materiały Wydział Zarządzania Uniwersytet Warszawski

Entire Volume Studia i Materiały 1/2026 (44)

Mengukur Capaian Dan Identifikasi Konvergensi Pembangunan Infrastruktur Antarprovinsi Di Indonesia, Ressa Isnaini Arumnisaa', Aisyah Fitri Yuniasih

Jurnal Ekonomi dan Pembangunan Indonesia

Indonesia’s economic challenges are characterized by stagnant economic growth and regional development disparities. This study analyzes the achievement and convergence of infrastructure development across provinces in Indonesia during 2011–2021 through the construction of an Infrastructure Development Index (IPI). The study employs panel data from 33 provinces, using factor analysis to construct the IPI and the First Difference Generalized Method of Moments (FD-GMM) to examine convergence and its determinants. The results show that many provinces still have IDI scores below the national average. Furthermore, the FD-GMM model shows that σ-convergence and β-convergence occur in Indonesia. In addition, GRDP per capita, inflation, …

Ethical Visual Truth: An Analysis On Vietnam War Photojournalism, Anna Lauryn Carmichael

Theses

This thesis examines the ethical dimensions of Vietnam War photojournalism through close analysis of four iconic photographs: Nick Ut's The Terror of War (Napalm Girl) , Eddie Adams's Saigon Execution , Catherine Leroy's Vietnam, February 1967 , and Gilles Caron's Untitled (Who's the Enemy Here?) . Rather than treating these images as transparent documentation, this thesis argues that Vietnam War photojournalism functioned as a contested medium of narrative construction, one whose most celebrated images achieved iconic status by conforming to Western visual conventions and institutional demands, rather than by capturing some unmediated truth. Drawing on the interconnected frameworks of visual …

What Is Media Authenticity?: A Guide To Detecting Authentic Media Literacy, Kawan Yarbrough

Theses

This project seeks to answer the question of what media authenticity is, as it relates to different forms of popular media such as social media and content creators, content consumers that also actively post on social media, Reality Television and also touching base on how Artificial Intelligence has infiltrated the lives of many. Aside from discussing academia that has been published on this topic prior, my project will additionally include a quick guideline for being able to detect inauthentic media, and give quick points and recommendations for people that have no active media literacy training of any kind that can …