Digital Commons Network^™

Volatility Spillover Among Geopolitical Risk, Oil Prices And Global Stock Returns In Advanced Economies, Chinmaya Behera, Pradiptarathi Panda, Purna Chandra Padhan

American Business Review

This study examines the volatility spillover effects among geopolitical risk, crude oil prices, and global stock returns across 39 developed economies.  Employing the model-free connectedness approach on data spanning the time period from 24 March 2014 to 15 December 2023, the analysis exhibits significant volatility transmission among the three variables. For instance, 72.9% of a shock to one asset class spills over to all other assets within advanced markets. The study identifies Austria, Belgium, Finland, France, Ireland, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and Taiwan as key transmitters of shocks, while countries such as Chile, Cyprus, Iceland, Latvia, Qatar and …

Tapestry Of Cross-Border Expansion Strategy By Navigating Ecological Risks: Joint Ventures Versus Acquisitions In India’S Textile Industry, Soumyatanu Mukherjee, Sidhartha S. Padhi, Ranit Sinha, Faisal M. Ahsan

American Business Review

We study how host-country ecological risk and carbon emissions shape Indian textile firms’ choice between cross-border acquisitions (CBAs) and cross-border joint ventures (CBJVs). We extend institutional theory by introducing ecological performance and sustainability disclosure shocks into entry-mode choice. The Environmental Outsourcing Hypothesis (EOH) posits that firms facing environmental liabilities prefer full acquisitions in jurisdictions with poorer ecological performance, effectively “outsourcing” environmental exposure to the host setting. Using 171 cross-border transactions (39 countries; 2004–2020) and Tobit/Logit/OLS models plus difference-in-differences and Heckman selection, we find: (i) higher ecological risk and higher direct (Scope 1) emissions in the host are associated with a …

Peer Effect On Payout Decisions: The Moderating Role Of Institutional Shareholdings And Agency Problems, Neeraj Jain, Smita Kashiramka, Neeru Chaudhry

American Business Review

This study examines the impact of institutional shareholders (ISH) and agency problems on firms' mimicking behavior in corporate payout policies. Using data from all companies listed on the Bombay Stock Exchange (BSE) and National Stock Exchange (NSE) between 1996 and 2020, we employ a two-stage least squares regression approach to address endogeneity bias. The study reveals non-linear, inverted U-shaped effects of ISH on firms' mimicking behavior. At low levels of institutional holdings, firms mimic to retain the ISH. However, beyond a certain level, the active role of institutional investors in firms' decision-making reduces firms' incentives to mimic their peers' payout …

Tmt Human Capital And Industry Dynamism In The Adoption Of Digital Transformation: Evidence From The S&P 500, Tushar Shah, George Benson, Sridhar Nerur, Mahmut Yasar

American Business Review

This study investigates the determinants of digital transformation (DT) in S&P 500 firms, examining how the human capital breadth and depth of top management teams (TMTs) influence strategic change. Drawing primarily on Upper Echelons Theory (UET), we theorize that a team’s collective resource portfolio serves as a critical antecedent to digital adoption. Our results demonstrate that TMT role heterogeneity (breadth) exhibits a consistent, linear positive influence on DT. In contrast, TMT tenure (depth) follows a non-monotonic, cubic life cycle. We identify three distinct phases: an “initial liability of newness” (coordination-driven trough), a mid-term “adeptness step” (absorptive capacity-driven peak), and a …

Do Political Connections Pay For Pledging Of Shares: Evidence From India, Kousik Ganguly, Ajay Kumar Mishra, Bhavik Parikh

American Business Review

This study examines the stock-pledging behavior of promoters in politically connected Indian firms, using NSE-listed companies from 2009 to 2019. We investigate how capital raised through stock pledging affects investment in high-risk projects and assess the impact of margin call pressure. Results show that higher stock pledging reduces corporate investment; however, promoters with political ties are more inclined to pursue riskier projects. Moreover, politically connected firms exhibit lower stock return volatility, suggesting that political connections help shield these firms from both investment risk and return fluctuations.

Adaptive And Maladaptive Behaviours And Their Cognitive Correlates In Aging Adults With Down Syndrome, Yingying Yang, Sonia Conde, Romal Bhullar

Department of Psychology Faculty Scholarship and Creative Works

Background Longer life expectancy in Down syndrome (DS) has shifted concern to age-related declines in everyday functioning. Adaptive and maladaptive behaviours are pivotal to quality of life, yet little is known about their patterns in older adults with DS.Method Data from 259 cognitively stable adults (25-72 year) in the Alzheimer's Biomarkers Consortium-DS were analysed. Adaptive behaviour (Vineland-3) and maladaptive behaviour (Reiss Screen) were analysed and then regressed on age, intellectual disability level, and cognitive tests.Results Higher age and greater disability predicted poorer adaptive functioning, but effects waned after cognition was included. General cognition, cued-recall memory, and inhibitory control independently predicted …

Cognition In Multiple Sclerosis Within The Modern Diagnostic And Treatment Era, James F. Sumowski, Sarah Levy, Ilana Katz Sand, Rachel Brandstadter, Emily Dvorak, Jordyn Anderson, Michelle T. Fabian, Robin A. Graney, Fred D. Lublin, Aaron E. Miller, Joshua Sandry

Department of Psychology Faculty Scholarship and Creative Works

Slowed information processing speed has long been considered the principal cognitive deficit in multiple sclerosis, with slowed cognitive speed presumed responsible for downstream deficits in other functions, including memory. This speed-centric model was established over three decades ago before disease-modifying therapies were available, and contrasts with our current clinical experience, but nonetheless remains dominant and unquestioned. We re-evaluated this model among current patients with multiple sclerosis diagnosed and cared for within the modern diagnostic and treatment era (2001-25).Within a case-control cohort, persons with early relapsing-remitting disease (<= 5.0 years since diagnosis, n = 170) performed worse than neurologically-healthy controls (n = 45) on memory but not cognitive speed, and cognitive speed among patients remained normal and stable over the next 6 years despite subtle memory decline. Relative to four historical studies of early relapsing-remitting disease (diagnosed using older criteria), effect sizes for case-control differences in our cohort were much lower for cognitive speed, but comparable for memory.An independent clinical cohort of 1004 consecutive patients aged 18-65 years with relapse-onset multiple sclerosis completed standard-of-care cognitive screenings between 2018 and 2025. We captured data from three independent periods. During the first period (n = 642), rates of poor performance (<= 7.5th percentile) did not differ from normative expectations for cognitive speed (8.4%) or attention (9.0%), but were nonetheless elevated for verbal memory (23.8%) and visuospatial memory (14.8%). Patients during the second (n = 123) and third (n = 239) periods demonstrated memory deficits despite normal cognitive speed on co-normed tasks. Objective cognitive speed among current patients was remarkably similar to healthy normative expectations [z-score: mean (standard deviation), 0.03 (1.14); median (interquartile range), 0.00 (-0.67, 0.67)], and was much better than across several historical comparisons from 20-25 years ago. Self-reported cognitive deficits within the total clinical cohort versus control respondents indicated worst disease-related difficulties in expressive language (e.g. word-finding), followed by working memory and episodic memory, with a small difference in executive/speed that was fully explained by mood in relapsing-remitting disease. Current patient-reported attention/executive deficits were lower than 35 years ago, despite comparable memory difficulties. As an exception, attention/executive and cognitive speed deficits were observed in secondary-progressive disease.The speed-centric model of cognitive dysfunction in multiple sclerosis is inaccurate within the modern diagnostic and treatment era. Memory deficits remain prevalent, and we highlight working memory maintenance as an important target for further investigation. The field requires testable models of memory dysfunction informed by contemporary cognitive neuroscience, with the goal of developing heretofore elusive treatments for memory deficits. Sumowski et al. show that, in contrast to historical cohorts, contemporary patients with MS more often exhibit memory and word-finding difficulties than cognitive slowing. Because cognitive speed now appears largely preserved, the speed-centric model of cognitive dysfunction in MS may no longer reflect current disease patterns.

Reward-Based Prioritization And Perceptual Feature Effects On Attentional Flexibility In Working Memory, Allison N. Marino, Kelly Cotton, Timothy J. Ricker, Joshua Sandry

Department of Psychology Faculty Scholarship and Creative Works

The focus of attention (FoA) is a resource within working memory (WM) assumed to hold limited information in a highly accessible state. Recent evidence suggests the FoA can flexibly adjust to hold early, middle, or terminal memory representations in a highly active state with adequate motivation. When a high-reward item is present, the FoA can be redirected to flexibly adjust and select prioritized items, leading to improved performance. This has been termed the prioritization effect. This finding has been demonstrated across prior investigations that have consistently used the color red to indicate the high-reward stimulus. The salience of the stimulus …

From Invisible Injury To Measurable Impact: Exploring Associations Between Peripheral Biomarkers Of Neuroinflammation And Mental Health Outcomes After Mtbi, Lauren Leggett Smith

Psychology Theses & Dissertations

Mild traumatic brain injury (mTBI), often referred to as a “silent epidemic,” accounts for the majority of traumatic brain injuries worldwide and is increasingly linked to persistent psychiatric outcomes. Despite its prevalence, mTBI remains understudied due to diagnostic challenges, underreporting, and misperceptions of its clinical significance. The present study examined whether peripheral biomarkers of neuroinflammation and astroglial injury—tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), and glial fibrillary acidic protein (GFAP)— mediate associations between mTBI history and psychiatric symptom severity, including depression, anxiety, and posttraumatic stress disorder (PTSD). Participants were 138 traumaexposed adults recruited from an urban university and surrounding community, with …

Moodify: A Mood-Based Music Recommendation System, Meghana Kagitha

Theses and Dissertations

Music has long been recognised as a powerful tool for emotional regulation, yet existing music streaming platforms often fail to align song recommendations with a user's current emotional state. Moodify is a mood-based music recommendation system designed to bridge this gap by delivering personalised playlists that reflect how a user feels in real time.

This project presents the design, development, and evaluation of Moodify, a mobile application that leverages the Circumplex Model of Emotion to capture user mood through an intuitive two-dimensional valence-arousal interface. Rather than relying on text input or manual search, users plot their emotional state directly onto …

Low-Vision Students’ Experiences With And Suggestions To Improve Desktop Virtual Reality: A Qualitative Study, Tanveer Mansur Syed

Theses and Dissertations

Visually impaired students have faced challenges in the field of education, particularly in science education. Not surprisingly, the unemployment rate for working-age visually impaired people has been above 70%. This persists despite federal laws to support the education and employment of visually impaired people,

Virtual Reality (VR) technology has evolved for several decades. Its use has proliferated in areas that include education. Today, VR science lab simulations are presented as a cost-effective alternative to traditional science labs. Research shows these to be viable substitutes to traditional science labs without a significant drop in learning outcomes. However, this researcher was unable …

An Experimental Study On Turbine-Based Energy Harvesters For Thermal Underwater Gliders, Stephen Edward Coster

Theses and Dissertations

Buoyancy-driven underwater gliders have been optimized for long-duration missions primarily for continual monitoring of the ocean’s water column. However, longer missions and higher-powered sensors have increased the energy requirements of gliders. While current solutions aim to increase battery capacity, the development of energy-harvesting systems (EHMs) could greatly improve mission capabilities in both ability and duration. This thesis discusses the experimental testing of an underwater glider with an EHM as detailed in the theoretical study, “Development of a Turbine-Based Ocean Thermal Energy Harvesting Mechanism Applied to the Underwater Glider” by Hongbo Hou, PhD. The rear-mounted turbine captures energy using the kinetic …

Employee Perspectives Of Addiction: Effects On Workplace Dynamics, Alex Silverman

Theses and Dissertations

This study examined how employees perceive and respond to coworkers experiencing substance use disorders (SUDs) and behavioral addictions in workplace settings. Integrating attribution theory, stigma frameworks, and Quality of Work Life (QWL) perspectives, a controlled vignette-based design was administered to 130 employed adults who evaluated hypothetical coworkers across addiction conditions. Multilevel modeling revealed that SUDs were perceived as more severe than behavioral addictions, and higher perceived addiction severity was associated with greater stigmatizing attitudes. Stigmatizing attitudes, in turn, were differentially associated with workplace behavioral responses: stigma was strongly associated with increased distancing and reporting behaviors but was not significantly associated …

Manned Exploration Of Satellites Of The Outer Planets: An Analysis Of Current Technologies And A Discussion Of Advancements Required, Joshua Carson Meador

Theses and Dissertations

The Solar System’s outer planets have many satellites, some of which are known to be the most likely places to find extraterrestrial life in our celestial backyard. Multiple scientific missions have been sent to glean information from these satellites, yet the possibility of a manned expedition has long been exclusive to science fiction stories. This paper intends to collect and analyze the current state of space travel technology to explore the feasibility of such a mission with modern technology and to discuss which future advancements should be the focal point for making such missions a reality. To begin, data on …

Hdra-Fusion: Hybrid Detection With Routed Architecture For Manipulation-Aware Ai Face Forgery Detection, Omar Ebeid

Theses and Dissertations

With the rapid advancements in artificial intelligence-based image generation and manipulation tools, it is extremely difficult to detect if an image is genuine or artificially crafted. Despite extensive research in this area, existing image detection systems suffer from three major problems: suboptimal cross-dataset generalization due to shortcut learning of dataset-specific patterns, unreliable probability estimates due to domain shift, particularly in cross-manipulation evaluation settings, and an inability to detect images manipulated by multiple types of manipulations within a single detection framework. To address these limitations, we propose HDRA-Fusion (Hybrid Detection with Routed Architecture), a framework built on the conclusion that different …

Quantifying Noise In Monte Carlo Simulations Of Cosmic Rays In A Shock, Abhro Rahman

Theses and Dissertations

Cosmic rays are a phenomenon known to humankind from the early 1900s, and yet today the details of their physical behavior are not fully settled. While the observed spectral fluxes of cosmic rays follow a power-law trend when plotted against particle energy, the exact mechanisms under which they get to such high energies are still under study. This thesis will undertake a subsection of that task, where the Monte Carlo simulation of particle accelerations is described in Warren (2015), and we aim to identify and quantify the noise inherent in such simulations. This document takes a long path through particle …

Unlocking Innovation: The Impact Of Psychological Safety, Organizational Structure, And Rigidity On The Pursuit Of Innovation Within The Firm, Robert Kyle Rudd

Theses and Dissertations

Innovation is often a competitive advantage generator, growth, and organizational success. However, there is relatively little empirical literature that describes how organizations may be designed such that employees also feel significant freedom to innovate. This dissertation investigates the role of psychological safety and organizational design conditions, perceived organizational structure and perceived organizational rigidity as joint predictors of perceived freedom to innovate (PFTI) of employees.

The quantitative, cross-sectional survey design was used to gather data of 425 full-time U.S.-based employees who were recruited through CloudResearch. Respondents undertook validated scales of psychological safety, perceived organizational structure, perceived organizational rigidity and perceived freedom …

Hybrid Machine Learning For Zero-Day Malware Detection: An Adaptive Static-Dynamic Analysis Approach, Garrett Farmer

Theses and Dissertations

In an era of swiftly evolving cyber threats, zero-day malware continues to be one of the most challenging classes of attacks to detect and mitigate. Traditional signature-based methods often fail to detect novel malicious code, leaving institutions vulnerable to unknown exploits. This thesis proposes a machine learning (ML)-based framework that is designed to detect unknown malware variants. By combining both static and dynamic techniques, such as file structure exam ination and sandbox-based runtime analysis, this approach aims to successfully capture malicious characteristics. The proposed custom pipeline addresses the computational overhead that is associ ated with deep inspections, outlining a staged …

Exploring Servingness Through Pedagogy: A Critical Case Study Of An Hispanic Serving Institution, Yemin Sánchez

Theses and Dissertations

This critical ethnographic case study advances current understandings of what it means to teach at an Hispanic Serving Institution (HSI) and how faculty enact servingness within an HSI enrolling high indices of Latin@/Hispanic students. Drawing on decolonial, culturally sustaining and liberatory pedagogical frameworks, this study interrogates how constructs such as Hispanic, Latin@/Latinx, or coloniality shape the pedagogical conditions under which faculty operate. Using pláticas with ten faculty members, this research study demonstrates servingness is not a technique or an institutional designation, instead, it is a fluid and deeply humanizing ecology with five mutually reinforcing dimensions: Servingness as Relational Praxis, Servingness …

Modeling Causal Interactions Across Brain Functional Systems For Population-Specific Disease Analysis, Alissen Moreno

Theses and Dissertations

Functional brain connectivity provides critical insight into neural mechanisms underlying neurodegenerative and affective disorders. Traditional neuroimaging studies rely on undirected or region-specific connectivity measures developed predominantly using racially homogeneous cohorts, limiting fairness and generalizability across diverse populations.

We propose a population-aware framework modeling directed causal interactions across large-scale brain functional subnetworks. Resting-state fMRI data from the HABS-HD cohort were used to construct subject-level causal connectivity matrices via ICA-LiNGAM, aggregated into interpretable system-level hyper-connectomes representing interactions among eleven canonical brain subsystems. These features trained nonlinear models for Alzheimer’s disease stage classification and trait worry prediction.

Results demonstrate that MLP models outperform …

Investigating Pre-Service Teachers’ Readiness For Early Reading Instruction: A Mixed Methods Study Of Quantified Knowledge In Phonemic Awareness And Lived Experiences, Kristin Morgan

Theses and Dissertations

This dissertation examines the lived experiences of pre-service teachers as they develop their knowledge and instruction skills during a three-week module within their first literacy course in a teacher preparation program. Literacy courses play an important role in equipping pre-service teachers with the knowledge and skills necessary to promote reading development. Research suggests that phonemic awareness is a crucial skill that predicts later reading achievement; however, many teachers lack the necessary experience and knowledge. This gap raises concerns about teacher preparation programs and how pre-service teachers learn. Guided by Vygotsky’s sociocultural theory, this sequential explanatory mixed-methods study sought to understand …

Evaluation Of Palm Oil As An Ingredient In Finishing Beef Cattle Diets On Performance, Carcass Characteristics, And Meat Quality, And The Composition Of Spayed Heifers To Intact Heifers Fed Melengestrol Acetate On Feedlot Performance And Carcass Characteristics, Tate S. Johnson

Department of Animal Science: Dissertations, Theses, and Student Research

Heifers represent a large proportion of cattle placed in feedlots, making pregnancy management an important consideration for maintaining performance and carcass value. Melengestrol acetate (MGA) is commonly included in feedlot diets to suppress estrus and prevent pregnancy in intact heifers during the finishing period. Alternatively, spaying has historically been utilized as a management practice to allow heifers to graze alongside breeding cattle without the risk of pregnancy. Despite its historical use, there is limited contemporary research comparing the growth performance and carcass characteristics of spayed heifers with intact heifers managed with MGA under modern feedlot conditions. Therefore, a commercial study …

Assessment Of Mississippi Landfill Capacity In Relation To Waste Generation And Land-Use Constraints, Jason C. Anderson

Master's Theses

Municipal solid waste (MSW) management presents a growing challenge in Mississippi as population trends, socioeconomic change and regional development continue to place pressure on existing landfill capacity. This thesis examines waste generation and disposal patterns from 2000 through 2022 across Mississippi counties, with projections extending to 2050. Historical landfill tonnage data was gathered and compiled from the Mississippi Department of Environmental Quality (MDEQ) and analyzed using regression models in Excel and RStudio, with forecasts generated for both in-state and out-of-state waste flow. Results highlight significant variations among landfills, including differing closure timelines, changing county service areas and notable shifts in …

Quantifying Discard Mortality Of Undersized And Ovigerous Crabs In The Gulf Of Mexico Blue Crab Fishery, Micayla Cochran

Master's Theses

Blue crabs support a valuable commercial fishery in the Gulf of Mexico. Most states require the release of undersized and ovigerous blue crabs, yet mortality of these discarded crabs is an understudied component of total mortality. The first objective of this project was to quantify discard mortality of non-target crabs using bycatch surveys across the Lake Pontchartrain–Mississippi Sound coastal system. Ovigerous crabs were most common at high salinities and temperatures, whereas undersized crab presence was inversely correlated with soak time, temperature, and the number of crabs per trap, and also varied among geographic locations. A reflex action mortality prediction assessment …

Investigating Racial And Ethnic Differences In Help-Seeking Recommendations And Intentions For Posttraumatic Stress Symptoms And Symptom Clusters, Josselyn Yanisbeth Telule

Master's Theses

Racially and ethnically minoritized (REM) communities experience disproportionate exposure to adverse events, including discrimination, socioeconomic disparities, justice system involvement, and limited access to healthcare. These inequities increase the likelihood of experiencing potentially traumatic events (PTEs) and developing trauma-related mental health concerns such as posttraumatic stress symptoms (PTSS). Despite this elevated risk, REM populations consistently underutilize mental health services. Although several explanations have been proposed—including differences in symptom recognition, perceived need for care, cultural values, mental health literacy, and preferred sources of support—less research has examined racial and ethnic differences in help-seeking intentions (HSI) and help-seeking recommendations (HSR), particularly in response …

Simulated Battles, Real Lessons: Analyzing The Impact Of The U.S. Navy’S Fleet Problems On Battle In The Pacific War, Jackson T. Volkert

Master's Theses

The historiography of the Pacific Theater of World War II is thorough in regard to its coverage of the war itself. The technology, doctrine, and personnel practices of both the Imperial Japanese Navy and the United States Navy are well understood by historians in the field. In addition to this, a less thorough but still healthy understanding exists as to how the belligerents in question adopted the methods and tactics they used on the battlefields of the Pacific. What currently exists in this field of study places more analytical emphasis on the cultural and strategic level impacts of the interwar …

Examining The Interactive Effects Of Time Perspective And Life History On Decision-Making Patterns Among College Students: A Modified Replication Of Griskevicius Et Al. (2011b), Cameron M. Robins

Master's Theses

Griskevicius and colleagues (2011b) demonstrated decision-making patterns consistent with life history theory, called life history strategies, using an experimental design in which they randomly assigned college students to read one of two texts. The experimental condition was designed to trigger a feeling of heightened awareness of one’s own mortality, called mortality salience. Participants in this condition exhibited patterns of risk-taking and delay discounting on the outcome measures that were related to their childhood socioeconomic status (SES), one of the first demonstrations of life history strategies in an experimental setting.

However, multiple attempts at replication have failed to show similar results. …

Modeling The Effects Of Low-Pressure Atmospheric Fronts On Sediment Transport Through Mississippi Sound Barrier Island Inlets, Nicholas J. Gagliano

Master's Theses

Coastal sediment dynamics in the Mississippi Sound are strongly influenced by tropical cyclones and the more frequent passage of low-pressure atmospheric fronts. While hurricanes are well recognized for reshaping barrier islands and altering sediment budgets, the cumulative role of recurrent fronts remains poorly quantified. This thesis investigates the impacts of six low-pressure atmospheric fronts (2015–2017) on sediment flux through six barrier island inlets in the Mississippi Sound.

A high-resolution application of the Regional Ocean Modeling System with the Community Sediment Transport Modeling System was developed to simulate tidal circulation, wind-driven currents, and sediment dynamics. Waves were excluded from the simulations. …

The Illusion Of Absence, Abraham K. Ali

Department of English: Dissertations, Theses, and Student Research

The Illusion of Absence is a collection of thirty poems with a critical introduction that examines the poetic legacy of paternal absence and the reconfiguration of family in Africa and diasporic narratives. I grew up in Nigeria without my father. His absence has shaped my understanding of love, silence, manhood, and home. This manuscript is an exploration of the lasting legacy of my father’s absence and its place within an exploration of masculinity within the broader context of the African and diasporic experience. My mother became the focal point within the home as she brought cohesion and unity within the …

Redefining The Mother Wound: Marianism, The Church, And Communal Mothering In Las Madres: Latinas In The Heartland Who Led Their Family To Success, Maria R. Loya-Pérez

Department of English: Dissertations, Theses, and Student Research

This thesis reconsiders the restrictive role assigned to Mexican mothers that is perpetuated by the Church and Marianism, and how those restrictions are liberated by communal mothering. In examining how a Mexican mother is expected to act based on cultural expectations, I analyze the stories of three real mothers from the familial autobiography Las Madres: Latinas in the Heartland Who Led Their Family to Success. I analyze three mothers, the matriarch Candelaria, her daughter Rafaela, and her daughter Irene to better understand how the Church and Marianism has restricted them based on the experiences of Candelaria. These restrictions when placed …