Digital Commons Network^™

The Nexus Between Energy Efficiency And Cost Of Debt: Evidence From The Indian High And Low Energy Efficient Firms, Pranith Kumar Roy

American Business Review

Globally, businesses are implementing energy-efficient strategies that align with market sustainability to enhance their performance. While the environmental and operational benefits of energy efficiency are well understood, its financial implications, particularly in debt financing, remain less clear. To achieve the objective, we examine the relationship between energy efficiency and the cost of debt in the context of emerging economies, with a focus on India, and explore the nature of this relationship. We utilize an unbalanced panel dataset comprising 4,856 Indian firms listed on the Bombay Stock Exchange between 2011 and 2022. We estimate firm-year fixed effects, a Tobit regression, and …

Does Greater Economic Freedom Lower The Nominal Interest Rate Yield And Help Offset The Interest Rate Impact Of The Primary Budget Deficit? An Ardl Analysis Of The 7-Year Treasury Yield, Richard J. Cebula

American Business Review

This study seeks to gain insight into the impact of economic freedom on the nominal interest rate yield on 7-year U.S. Treasury notes, an interest rate yield that has received effectively no attention in the scholarly literature during the 21st century to date. It is hypothesized that greater economic freedom acts to reduce the nominal interest rate yield on 7-year Treasury issues. Additionally, this study seeks to investigate the interest rate impact of federal government overspending. To reflect the latter, this study adopts the primary budget deficit rather than the much more commonly studied total budget deficit. The primary deficit …

Avoiding Desk Rejection In The Age Of Ai: Make The Contribution Clear, Subroto Roy, Kamal Upadhyaya

American Business Review

The rapid adoption of artificial intelligence tools has changed the way scholarly manuscripts are prepared. Many authors now use AI-assisted tools to improve grammar, style, organization, and readability. Used responsibly, such tools can help authors communicate their ideas more clearly. However, a well-written manuscript is not necessarily a publishable manuscript. For the American Business Review (ABR), the central question remains unchanged: What does the manuscript contribute, and why should that contribution matter to ABR’s readership? Authors remain responsible for the intellectual content, integrity, and contribution of their work (Gatrell et al., 2024; Carobene et al., 2024).

Creative Roots, Strategic Outcomes: Ceo Childhood Imprints And The Pursuit Of Innovation, Puya Kahhali, Alexandru Roman, Haibo Liu

American Business Review

This study examines how CEOs’ early-life experiences shape strategic decision-making, focusing on the influence of parental creativity. Drawing on imprinting and upper echelons theories, we argue that CEOs with creatively employed parents develop an exploratory mindset that promotes greater investment in firm R&D. Crucially, we propose that this learning stems from behavioral modeling of exploratory mindsets through creative problem-solving—rather than the transmission of socioeconomic capital. Using a proprietary dataset of Fortune 100 CEOs and their parents’ occupations, we find robust support for this relationship. The effect is amplified under strong firm performance, while CEO age does not consistently weaken the …

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 …

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 …

Threat-Related Mental Imagery Reduces Endogenous Pain Modulation In Healthy Individuals, Julie L. Ji, Meghan Whitehouse, Sam Mugglestone, Sam W. Hughes

School of Psychology

Mental imagery-based simulations of threat can evoke “as-if-real” emotional and motivational responses, which may alter top-down pain processing. This study investigated the impact of mental imagery simulations of threat on endogenous pain modulation in n = 71 healthy participants using a cuff-pressure algometry protocol. In block one, participants were assessed on their baseline pain detection threshold (PDT), pressure pain tolerance (PTT), and their conditioned pain modulation (CPM) responses. In the second block, participants underwent the same procedures again but were randomly allocated to imagine the dominant leg cuff as being made of bubble-wrap (benign imagery condition; n = 36) or …

Aircraft Fault Detection Via Weight And Bias Analysis Of A Custom First Neural Network Layer, George Harrison Chen

Theses and Dissertations

Fault detection in aircraft is traditionally handled through redundant hardware and comparison algorithms to detect failures. Alternatives like model-based residual generation and data-driven approaches such as supervised fault classification and unsupervised anomaly detection have been explored, but they suffer from practical limitations; model-based methods require accurate system models, and data-driven methods have large constraints on the data limiting scalability and adaptability. This work presents a purely data-driven neural network architecture featuring a custom first layer designed for real-time fault detection where the weights and biases of this layer are used to detect faults. The network requires zero supervision and complements …

Design And Simulation Of Anti-Resonant Hollow-Core Fiber For Sensing Applications, Pravallika Kante

Theses and Dissertations

This thesis presents the design and simulation of an 8-tube single-ring anti-resonant hollow-core fiber for sensing applications, with particular emphasis on methane gas detection at the fundamental absorption wavelength of 3.3 µm. Conventional solid-core silica optical fibers exhibit strong multi-phonon material absorption beyond 2.5 µm, rendering them fundamentally unsuitable for efficient light guidance and direct gas sensing at mid-infrared wavelengths. Anti-resonant hollow-core fibers overcome this limitation by guiding light predominantly through an air-filled hollow core via the anti-resonant reflecting optical waveguide mechanism, in which the thin silica glass walls of the cladding tubes act as Fabry-Pérot etalons that confine the …

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 …

Shifting The Gaze: What Do High School Ela Teachers Mean When They Talk About Literacy For Students In Their On-Level Classes?, Yvonne Ceynow

Theses and Dissertations

This critical narrative inquiry explored how six high school English Language Arts (ELA) teachers defined literacy for students sitting in their on-level classes. By shifting the focus from student performance to teacher meaning-making, this research sought to understand how foundational beliefs about literacy shaped instructional and pedagogical decisions. Data was collected through digital journal entries, semi-structured interviews, and instructional artifacts. Using a thematic analysis approach, five interconnected themes emerged: the pervasive use of deficit-based language to describe on-level students; the perception of this group as high-need, requiring extensive scaffolding; the belief that socioeconomic status and parental support were key differentiating …

Teacher Narratives Of Curriculum Implementation In Bilingual Education: A Vygotskian Analysis, Jose F. Orozco

Theses and Dissertations

This narrative inquiry explores bilingual educators' experiences implementing the Amplify Reading curriculum in a diverse, Title I-funded urban district. As schools adopt standardized curricula, tensions emerge between monolingual standards and the needs of bilingual students. Using a Vygotskian framework with Cultural-Historical Activity Theory (CHAT) and Knowledge Structures (KS), the study examines how teachers navigate systemic contradictions and how these tensions influence their professional identities.

Using an interpretivist approach, data were collected via semi-structured interviews, a focus group, and a researcher’s journal from six experienced bilingual educators. Thematic analysis reveals profound structural fractures within the activity system: a primary contradiction between …

Beyond Moving Hands: Narratives Around Deaf Education, Sara Simpson

Theses and Dissertations

This qualitative narrative study explored the experiences and perspectives of deaf educators and educational interpreters working in high school settings. Participants shared narratives about their professional experiences, training, and roles in deaf education. By considering their professional histories, backgrounds, and cultural perspectives, this study examined how these experiences shaped participants’ perceptions of the current state of deaf education.

Using a qualitative narrative research design, three participants with experience working in high school deaf education settings were interviewed individually and later participated in a focus group discussion. The interviews and focus group centered on participants’ perspectives regarding key issues in deaf …

Voices From The Classroom: Elementary Teachers’ Perspectives On Teaching And Learning During The Covid-19 Pandemic – A Case Study And Autoethnography, Alicia Lopez-Hernandez

Theses and Dissertations

Guided by constructivist learning theory and sociocultural theory, this qualitative case study and autoethnography examines how bilingual educators constructed knowledge, adapted instructional practices, and utilized mediational tools within face-to-face, online and hybrid learning environments. These frameworks informed the study’s design, data analysis, and interpretation of findings related to pedagogy, technology integration, and student engagement. Data was collected through semi-structured interviews, naturalistic observations, and autoethnographic reflective journaling.

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 …

Use Of Complementizer That Among English-Spanish Bilinguals, Aziz Abraham Quenun

Theses and Dissertations

Languages vary in how they signal the presence of an embedded clause. Both English and Spanish use what are termed complementizers—that in English and que in Spanish—but in English, the complementizer is often optional while in Spanish, it is generally required. This thesis tested if the presence of que in a Spanish sentence could induce a bilingual speaker to insert a previously omitted that into an English sentence using a syntactic priming task. The results of these trials showed that this was the case, finding a statistically significant priming effect, supporting the idea that syntax is cognitively shared across languages …

Academic Anxiety, Anxiety Sensitivity, And General Mental Health In Collegiate Student-Athletes, Finley Gabrielle Elkins Sims

Theses and Dissertations

Collegiate athletes’ mental health is on the decline, and they have unique experiences that can influence the prevalence of mental health struggles. This study examined academic anxiety, comorbid forms of anxiety, and predicting factors in 187 collegiate student-athletes across 29 U.S. colleges. Athletes had significantly higher levels of academic anxiety and general anxiety compared to a college nonathlete population. There were significant gender differences in athletes, with females having greater levels of anxiety sensitivity, academic anxiety, sport anxiety, general anxiety, depression, and a history of depression than male athletes. Gender, history of depression, anxiety sensitivity, and depression were significant predictors …

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 …

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 …

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 …

Aligning Care To Cognitive Style: A 4-Question Framework For Patient-Centered Dermatology Visits, Elise Lau, Jeremy Haskins, Vishnu Palaniappan, Kumar Nadhan

Student Publications

Objective: To improve patient-centered dermatology care by identifying how patients prefer to approach medical decision-making and structuring their visit, using a brief 4-question intake survey focused on cognitive style.

Methods: New patients at 2 dermatology clinics within the California Skin Institute completed a multiple-choice intake questionnaire before their first visit. The survey asked patients how many concerns they wanted to address, how much guidance they preferred in selecting treatment, whether they prioritized diagnosis or treatment during the visit, and their expected timeline for results. Associations between patient responses and demographics (sex, age, chief complaint) were analyzed using χ2 tests.

Results: …

Understanding Roma Oppression In Europe Through Humantarian Forensic Analysis, Christal L. Quinn

Department of Anthropology: Theses and Student Research

This thesis examines the marginalization of Roma people in Europe, and how humanitarian forensic practices may help Roma communities in their quest for justice and recognition. The study draws exclusively on secondary information to examine the social, political, and legal issues affecting the Roma communities, who have endured centuries of institutional discrimination, marginalization, and violence. This thesis identifies ways in which systematic oppression continues to limit Roma communities’ access to education, housing, healthcare, and legal protection through a review of relevant literature and applicable theoretical frameworks. The study also examines the relevance of forensic science, particularly its humanitarian applications, in …

Evaluating The Impact Of Intercropping Vegetables And Cut Flowers On Yield And Conservation Biological Control, Alliance Igiraneza

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Specialty crops such as vegetables are some of the most susceptible to yield losses and increased management difficulty over time due to pests. One of the potential solutions to this problem, which aims at ensuring the sustainability of the sector, is using conservation biological control practices such as intercropping to increase diversity, while maintaining the economic feasibility and profitability of the system. This study was conducted to evaluate the impact of this management practice using Bell pepper (Capsicum annuum var. King Arthur) as the main crop, intercropped with flowers including zinnia (Zinnia elegans var. Benary’s Giant), sunflower ( …

Cis-Variant Gene-Expression Association Analysis: A Targeted Approach To Identify Functional Cis-Regulatory Variation, Sofiya Arora

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Phenotypic diversity in plants is largely driven by changes in gene function arising from mutations in both the coding and regulatory regions. Regulatory variation is particularly pervasive because it can fine-tune gene expression without disrupting protein function and is therefore less likely to be strongly selected against in natural populations. As a result, it has played a central role in evolution and domestication. In our previous genome-wide eQTL mapping study in maize, nearly two-thirds of the expressed genes were found to harbor detectable cis-expression quantitative trait loci (cis-eQTLs) with strong local effects on gene expression. Though these cis-variants are widespread, …

The Harvey Pittel Saxophone Quartet: Its History And Legacy In American Saxophone Quartet Performance, James M. Lawhn

Glenn Korff School of Music: Dissertations, Theses, Student Creative Work, and Performances

The saxophone quartet has emerged as a legitimate chamber ensemble in the United States through the sustained efforts of a small number of pioneering professional groups. Despite the central role these ensembles have played in shaping repertoire, performance standards, and public perception, their histories have often gone undocumented. Among the most influential of these groups is the Harvey Pittel Saxophone Quartet, an ensemble that maintained an unusually active national and international touring career for nearly four decades and helped establish the saxophone quartet as a viable professional model.

This document addresses a significant gap in the scholarly literature by presenting …

Detecting Doubt In Reflective Learning: A Learning Analytics Study With Large And Small Language Models, Eng Lieh Ouh, Kar Way Tan, Siaw Ling Lo, Yuhao Zhang

Research Collection School Of Computing and Information Systems

Reflective learning enhances understanding, especially when instructors promptly address difficulties raised in student reflections. Automated doubt detection can reduce time for instructors, yet existing classification approaches take substantial time for manual annotation and model training. This paper investigates whether large and small language models (LLMs, SLMs) can automate doubt detection without time-consuming training. Using a dataset of anonymized student reflections, we evaluate zeroshot, few-shot prompting, and multi-step reasoning against prior supervised classification baselines. We show that LLMs (GPT-4o, Claude-4, Gemini-2.5) surpass earlier F1 scores without prompting, while prompting further improves their performance. However, using proprietary LLMs can raise cost and …

The Influence Of Composition On Porosity And Strength In Planetary Analog Saline Ices, Tara C. Tomlinson

Dartmouth College Ph.D Dissertations

This thesis investigates how composition influences the physical structure and mechanical behavior of saline ice, with implications for both terrestrial sea ice and the ice shells of ocean worlds such as Europa and Enceladus. This is done through a multi-pronged approach of both numerical modeling and laboratory experiments. Modeling results re- veal that small-scale parameter variations in porosity, permeability, and permeability fac- tor may produce large discrepancies when extrapolated to planetary scales, underscoring the need for improved experimental constraints on pore connectivity and thermochemical conditions. Laboratory analyses show that while total porosity is relatively uniform with depth, it varies strongly …

The Legal Framework For Direct Ocean Carbon Capture And Storage (Volume 2: The United States), Korey Silverman-Roati, Romany M. Webb

Sabin Center for Climate Change Law

This paper, the second in a series of two, focuses on the U.S. legal framework for the marine carbon dioxide removal (mCDR) approach of direct ocean carbon capture and storage (DOCCS). The first explores DOCCS governance under international law and is available here: https://scholarship.law.columbia.edu/sabin_climate_change/271/.

DOCCS aims to remove some of the carbon currently stored in the ocean and thereby enable it to uptake additional carbon dioxide from the atmosphere. DOCCS is still undergoing research, but early studies suggest it could have significant carbon dioxide removal potential. However, DOCCS could also present environmental and other risks, including from the construction …

The Effects Of Geography, Forage Sources And Seasonality On Microbial Communities In Honey Bees, Adam Pachl

Theses and Dissertations

There has been growing research examining the effects on honey bee nutrition through their gut microbial communities. While there is some consensus about the core composition of the honey bee gut, there has been very little work to examine if regional or seasonal differences affect the microbiome. To examine if seasonal or regional differences have any impact on the composition of the gut microbiomes on North Dakota honey bees, worker bees were sampled from commercial honey bee colonies both pre and post honey flow in 2022 in six different regions of North Dakota. The gut bacteria from the bees were …

Technology-Supported Literacy Instruction In Elementary Classrooms (K-5): Perspectives Of Student Teachers In Western Kentucky, Ila B. Shirrell

Honors College Theses

The use of technology in elementary classrooms (kindergarten–fifth grade) has increased significantly with the goal of enhancing instruction. Additionally, educational technology is being used to improve literacy skills, reading recovery, and comprehension. This study examined how technology supports literacy development and instruction in elementary classrooms by drawing upon the perspectives of current student teachers. Student teachers from Murray State University, placed in third through fifth grade classrooms in Western Kentucky, were interviewed. The interviews assessed how technology was used for literacy instruction, including the extent of its effectiveness and potential challenges. Responses were transcribed and analyzed. The themes of evidence-based …