Digital Commons Network^™

Refractive Error And Axial Length (Real) Study: Feasibility Of A Population Study In The United States, Sarah E. Singh Dr, Lisa A. Ostrin, Kristen Kerber Dr, Concepcion Cayle, Celia Gong Dr, Lal Barsha Dr, Ian Flitcroft, Síofra Harrington, James Loughman, Kathryn Saunders Prof, Fuensanta Vera-Diaz Dr

Articles

Myopia is the most common eye disease and a leading cause of blindness. A contemporary, large, and ethnically and geographically diverse study of ocular biometry and refractive error in children in the United States is needed to help better describe differences between myopic and nonmyopic eyes.

This is an initial cross-sectional report from the Refractive Error and Axial Length Growth Curve Study that includes ocular component data as a function of age, gender, and geographic location. This feasibility report will inform a planned larger longitudinal ocular growth study in children in the United States.

Cross-sectional data on children, ages 3 …

Randomized Controlled Trial Of "Bounce Back Now," A Mobile App To Reduce Post-Disaster Symptoms Of Posttraumatic Stress, Depressed Mood, And Sleep Disturbance, Kenneth J Ruggiero, Arthur Andrews, Tatiana M Davidson, Yulia Gavrilova, Brian E Bunnell, Jennifer Dahne, Matthew Price, Zoe M F Brier, Gregory Cohen, Dean Kilpatrick, Ron Acierno, Sandro Galea

Faculty, Staff and Student Publications

Objective: There is tremendous public health interest in cost-efficient, scalable interventions to improve post-disaster mental health. The authors examined the efficacy of Bounce Back Now (BBN), a mobile application, versus an enhanced usual care app (EUC).

Methods: A population-based trial was conducted with a diverse sample of 1,357 adults affected by Hurricane Harvey, Irma, Maria, Florence, or Michael in 2017 and 2018. Participants were eligible if they were ≥18 years of age, had access to an Internet-accessible device, were English speaking, and lived in a hurricane-affected area. BBN is designed to address symptoms of posttraumatic stress, depression, and sleep disturbance …

Adherence To Life’S Essential 8 Is Associated With Delayed White Matter Aging, Li Feng, Zhenyao Ye, Yezhi Pan, Rozalina G Mccoy, Braxton D Mitchell, Peter Kochunov, Paul M Thompson, Jie Chen, Menglu Liang, Thu T Nguyen, Edmond Shenassa, Yan Li, Travis Canida, Hongjie Ke, Hwiyoung Lee, Song Liu, L Elliot Hong, Chixiang Chen, David K Y Lei, Shuo Chen, Tianzhou Ma

Faculty, Staff and Student Publications

Background: The American Heart Association introduced Life's Essential 8 (LE8) to promote cardiovascular health and longevity. However, its impact on brain ageing and interactions with genetic risk factors of dementia, such as APOE4, remains unclear. This study investigates the relationship between LE8 and white matter brain ageing and evaluates the moderating effects of the APOE4 allele.

Methods: This cross-sectional study utilized data from the UK Biobank, including genetic, neuroimaging, and health-related data from touchscreen questionnaires, physical examinations, and biological samples. Participants were non-pregnant whites with LE8 variables, diffusion tensor imaging (DTI) data, and APOE4 genetic information available, excluding those with …

Balancing Tradition And Tourism: Crafting An Effective Marketing Strategy For Belize's National Parks, Kyler Marie King

Marketing Undergraduate Honors Theses

This thesis reflects on a summer internship in the small town of Dangriga, Belize. The author interned at Mayflower Bocawina National Park, a role made possible through Dr. Amy Farmer and Mr. Steve Darr. While tourism plays a significant role in Belize’s economic development, communities like Dangriga remain underdeveloped in their tourism strategies. The author and her partner collaborated to design a targeted marketing plan for Mayflower Bocawina National Park, aimed at increasing visitor engagement and boosting local tourism revenue.

Under The Eyes Of The Oppressors: Exploring The Spatial Oppression Of African Nova Scotians, Lorenze L. Cromwell

Dalhousie Law Journal

Spatialization is a theoretical understanding of how space is used to enforce and replicate hierarchical power structures. Nova Scotia has used spatialized processes, such as enslavement, segregation, and panoptical power, to subjugate, oppress, and control African Nova Scotians for over 400 years. These practices of spatialization have been established and perpetuated by the law and legal mechanisms, creating a complex spatialized system of oppression against African Nova Scotians. This article defines spatialization, explores the historical and contemporary uses of spatialization, and analyzes the actuarial and symbolic effects created by spatialization. The author concludes by proposing remedial and reparative action that …

Divine Condemnation And Psychological Flexibility: Viewing Psychological Distress Through A Religious Lens, Abby Chittenden

Honors Theses

Recent research has shown the widespread prevalence of psychological distress. Religion can operate both as a resource as well as a problem or barrier to good mental health. Given that some individuals attribute mental distress to religious or spiritual causes, such as punishment from God or demonic involvement, this research examines how these beliefs influence emotional regulation and mental health outcomes. The study surveyed 1,304 participants, including 686 undergraduate students and 618 online participants, to assess their religious attributions, psychological flexibility, and level of distress. The results indicated that those in the general sample who viewed their mental health struggles …

The Interplay Between Attribution Bias And Psychotic-Like Experiences: The Role Of Social Media, Jordan Leggett

Honors Theses

Psychotic-like experiences (PLEs) are perceptions, thoughts, or beliefs that resemble symptoms of psychosis but are less severe and not necessarily related to a mental disorder. A plethora of research has found associations between PLEs and hostile attribution bias, the tendency to over-interpret situations as hostile, aggressive, or intentional. Some work suggests viewing certain types of content online may be linked to hostile attribution bias. Yet, limited research has examined hostile attribution bias and PLEs through the lens of social media. This study aimed to explore these relationships by modifying a measure of hostile attribution bias using social media vignettes. This …

Judgement And Doom: Apocalyptic Anxiety And Rhetoric In Anglo-Saxon England, Lauren Coghlan

Honors Theses

Comparable to the “Y2K” phenomenon at the turn of the twentieth century, many historians posit that there was a similar concern a thousand years prior at the turn of the first millennium. This rested on the belief that Christ would return and initiate the world’s end—the apocalypse. In ninth and tenth-century England, Vikings raids were instilling terror into the hearts and minds of those who experienced them, and the clergy often observed these calamities in an apocalyptic light. This thesis will examine the rhetorical and theological expressions of apocalyptic concern in Anglo-Saxon writing from the ninth century into the tenth …

Mocking Birds: Investigation And Performance Of Selected Works Featuring Birdsong By Messiaen And Westerlinck, Sarah Hinchey

Honors Theses

This thesis is a creative project that includes a study of the lives and compositional techniques of Olivier Messiaen and Wilfried Westerlinck. Investigation of the composers’ techniques explains aural similarities between the two pieces. The research informed a live performance of Messiaen’s Le merle noir and a recording project of Westerlinck’s Meeting a Mockingbird in Texas.

Unraveling The Causal Influences Of Drought And Crop Production On Groundwater Levels Across The Contiguous United States, Nitin K. Singh, Sheila M. Saia, Ruchi Bhattacharya, Hoori Ajami, David M. Borrok

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Groundwater depletion in agricultural-dominated regions is attributed to climate and irrigation withdrawals that support crop production. However, despite decades of effort, knowledge gaps remain in understanding the relative influence of drought and crop production on groundwater levels at the continental scale. Here, utilizing empirical observations, we simultaneously track how long-term trajectories of groundwater levels, crop production of seven crops, and drought have evolved over time, and then integrate these observations with a causality-based attribution framework to unravel the relative impact of drought and crop production on groundwater levels across the contiguous United States (CONUS). We find a dominant pattern of …

Navigating Challenges In Palliative Care: A Survey On Asco Guideline Adherence Among Health Care Providers In Low- And Middle-Income Countries., Cristiane Decat Bergerot, Enrique Soto-Perez-De-Celis, Chadane Thompson, Rushil Patel, Jafar Al-Mondhiry, Tingting Zhang, Nathasha Dhawan, Darcy Burbage, Joseph Mccollom Do, Mazie Tsang, Ramy Sedhom, William E Rosa

PCI Publications and Projects

PURPOSE: Integrating palliative care into oncology is essential, yet disparities in access and quality persist, particularly in low- and middle-income countries (LMICs). The ASCO guidelines advocate for early, routine, interdisciplinary palliative care for patients with advanced cancer. Barriers to implementing these recommendations include resource limitations, inadequate training, and cultural perceptions. Recognizing these challenges is essential for improving equitable access to palliative care worldwide.

METHODS: This prospective survey assessed adherence to ASCO recommendations for palliative care integration among LMIC health care providers (HCPs). Participants were recruited via e-mail, social media, and a list of members involved in the ASCO Palliative Care …

Life After Leaving College: A Phenomenological Exploration Of Senior-Year Transition And Future Self Ideation For Cisgender Women In A Post-Dobbs Sociopolitical Context, Abigail Lukens

LSU New Orleans Theses and Dissertations

The Senior-Year Transition, first named by Gardner and Van der Veer (1995), is defined as the final period of the undergraduate experience before transitioning into graduate school or the workplace. Few studies have investigated gender differences in this transition, and additional research is needed on women’s Senior-Year Transition experiences and the impact of context on experience. This is especially relevant as women and other pregnancy capable people navigate a new, post-Dobbs sociopolitical context in the United States with implications for their reproductive health and future family or life planning. Using a qualitative, interpretive phenomenological research design with a modified …

Echovore, Gabby Beury

A Midwestern Review: A Magazine of the Arts and Issues at DePauw University

"Gabby Beury is a Senior English Writing major with minors in Film and Italian Cultural Studies at DePauw University. She enjoys reading and writing comedic and absurdist works."

Fourth Of July, Eliana Jolanda Alzate

A Midwestern Review: A Magazine of the Arts and Issues at DePauw University

Eliana Alzate is a Junior English Writing and Computer Science major at DePauw University. Her works explore the intersections of diasporic identity, political chaos, and artistic discovery. When she isn’t writing stories and poems, you can find Eliana filming vlogs and singing karaoke.

Credentials, Audrey Ickes

A Midwestern Review: A Magazine of the Arts and Issues at DePauw University

Audrey Ickes is a Senior English-Writing major and History and Communications double minor. Flip to page 31 to see the rest of her credentials or page 23 to find out why she writes whether she likes to or not.

Gender-Sexuality Alliance Advisors’ Covid-19 Strategies Inform Future Responses To Sociopolitical Crises, Robert Marx, Michael O'Brien, Megan Yang, Diana Smith, Paul Poteat

Journal of Youth Development

In the spring of 2020, the COVID-19 pandemic necessitated a sudden shift to remote learning in schools across the United States, profoundly impacting marginalized communities, including LGBTQ+ students. This qualitative study explores the experiences of Gender and Sexuality Alliance (GSA) advisors during this period. Drawing on interviews with 10 GSA advisors, the research highlights the structural and logistical challenges faced, such as limited access to technology and virtual-meeting fatigue, as well as the innovative solutions and adaptations made to continue supporting LGBTQ+ youth. The study reveals how GSAs leveraged existing resources, maintained group cohesion, and adjusted meeting structures to navigate …

Utilization And Perception Of Individual Performance Assessments Among Instrumental Music Educators In Northeastern Pennsylvania, Thomas Bassett

Doctoral Dissertations and Projects

This qualitative grounded theory study aimed to develop a theory explaining how secondary instrumental music educators in Northeastern Pennsylvania select, implement, and perceive performance assessments. Teachers need actionable data to determine the next steps in the learning process. The study design included twelve semi-structured interviews of Pennsylvania-certified music educators and a content analysis of any scoring tools or rubrics that they provided. The analysis process included open, axial, and thematic coding with the development of the core category and theory. Despite some prior research into performance assessments in music education, the literature lacked research with explanatory power over teachers’ assessment …

Comprehensive Global Data Set Of Uniformly Processed Shear-Wave Splitting Measurements, Jonathan Wolf, Thorsten W. Becker, Edward Garnero, Kelly H. Liu, John D. West

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Seismic anisotropy can inform us about convective flow in the mantle. Shear waves traveling through azimuthally anisotropic regions split into fast and slow pulses, and measuring the resulting shear-wave splitting provides some of the most direct insights into Earth's interior dynamics. Shear-wave splitting is a constraint for path-averaged azimuthal anisotropy and is often studied regionally. Global compilations of these measurements also exist. Such compilations include measurements obtained using different data processing methodologies (e.g., filtering), which do not necessarily yield identical results, and reproducing a number of studies can be challenging given that not all provide the required information, for example, …

The Inclusion Of Goal Setting In Promoting Exercise Adherence In Adolescent Athletes Who Sustained A Concussion: A Critically Appraised Topic, Caitlin Culhane

All Student Scholarship

Introduction/clinical scenario: Almost 2 million youth in the US sustain a concussion every year with several of them experiencing persistent post concussive symptoms. Past intervention has suggested that rest until symptom free is the best approach, while current findings suggest this approach is outdated and early exercise can help with a faster recovery. Several studies have researched the effects of goal setting strategies in different populations however there is a need for study in adolescent athletes. Focused clinical question: Is goal setting beneficial in promoting exercise adherence for adolescent athletes who sustained a sports related concussion? Summary of key findings: …

In Competitive Athletes, Does Adding Psychological Rest Compared To Regular Training Reduce Burnout: A Critically Appraised Topic, Amy A. Umutoni

All Student Scholarship

Burnout among competitive athletes is a multifaceted syndrome characterized by emotional and physical exhaustion, a diminished sense of accomplishment, and sport devaluation. 1 The rigorous demands of training and competition can lead to chronic stress, potentially culminating in burnout. While physical rest is a well-established component of athletic recovery, the role of psychological rest in mitigating burnout is gaining attention. 2 Psychological rest encompasses mental breaks and activities that promote cognitive relaxation, potentially aiding in recovery and performance. Emerging evidence also suggests that structured psychological interventions can enhance emotional well-being and resilience among athletes, particularly those coping with injuries. In …

Full-Stack Web Applications: Industry Standard Frameworks, Libraries & Technologies, Yassine Chahid, Patrick Slattery

Publications and Research

This research explores emerging full-stack web development technologies across front-end, back-end, and DevSecOps domains. It evaluates modern tools including Django, React, and TypeScript—focusing on their key features such as compile-time error checking—through to the development of a web application. By examining documentation for the frameworks Node.js, Next.js, Tailwind CSS, and others, along with the deployment tools Docker and Git for version/release control, the study analyzes how these innovations speed up development, improve existing practices, and have often replaced older technologies. Cloud solutions for tasks such as authentication and deployment will also be evaluated, along with various web-application technology stacks and …

Functional Consequences Of Lysine Acetylation Of Phosphofructokinase Isozymes, Xinyu Lin, Nour Fatema, Qinglei Gan, Chenguang Fan

Chemistry & Biochemistry Faculty Publications and Presentations

Phosphofructokinase (Pfk) catalyzes the phosphorylation of fructose 6-phosphate and is a key regulatory point in the glycolysis pathway. Multiple lysine residues in both Pfk isozymes, PfkA and PfkB, have been identified to be acetylated in Escherichia coli by proteomic studies, but no studies have been implemented to further characterize these acetylation events. To investigate the role of Pfk acetylation, the genetic code expansion strategy was used to generate homogeneously acetylated Pfk variants at target lysine sites that have been reported to be acetylated in nature. We found that acetylation of K309 of PfkA and K27 of PfkB decreased PfK enzyme …

The Challenges Small And Medium-Sized Businesses Face Adopting Digital Supply Chain Technologies: A Case Study Of Firms In Traditional Industries In The United States, Michael S. Stevens

Doctoral Dissertations and Projects

This research examined the digital transformation of supply chains within small and medium-sized businesses (SMBs), focusing on the challenges firms in traditional industries in the United States face in adopting these technologies to improve performance. Through a single case study qualitative approach, the study examined why some SMBs face these challenges, digital supply chain technologies affect business performance, and which technologies they contemplate to achieve their desired outcomes. Key findings indicate that most SMBs are between the digitization and digitalization phases of the digital transformation journey and are driven to adopt digital technologies that enable operational performance for scalable profitability. …

Determinants Of Trading Prices In State-Owned Asset And Equity Transactions: An Empirical Analysis From China, Lixiao Chen

Dissertations and Theses Collection (Open Access)

This thesis examines the determinants of pricing outcomes in state-owned asset transactions using a comprehensive dataset of 3,638 transactions from a major transitional economy. Contrary to conventional expectations, we find that fixed assets consistently receive less favorable pricing compared to equity assets, with significantly lower odds of trading above professional valuation and higher odds of trading below valuation. This pattern persists across multiple specifications and remains robust to propensity score matching approaches that address selection concerns. I further demonstrate that state-owned buyers secure significant advantages in transaction pricing, with dramatically lower odds of paying premiums over valuation or listing prices …

Felt Obligation, Knowledge Sharing And Innovation Performance: The Role Of Team Performance Goal Orientation, Zenan Wen

Dissertations and Theses Collection (Open Access)

In today’s dynamic work environment, individual innovation is vital for organizational success. While knowledge sharing is a recognized driver of innovation, less is known about the internal motivational forces that compel employees to share knowledge. Drawing on the role identity theory, this research examines how felt obligation—a normative motivation, whereby individuals, based on their perceived role identities, believe they should care about organizational goals and contribute to them—encourages knowledge sharing and subsequently enhances innovation performance. Furthermore, I theorize that this relationship is strengthened in teams with higher performance goal orientation (TPGO), where norms and expectations regarding performance excellence amplify the …

The Dynamics Of Power Transfer In Organizations: Examining Downward Deference And Its Workplace Consequences, Hoang Bao My Nguyen

Dissertations and Theses Collection (Open Access)

This dissertation examines managerial power transfer as a core mechanism through which less-hierarchical management unfolds in organizations. While traditional management research has emphasized formal authority and top-down control, emerging organizational forms increasingly call on managers to share power with subordinates. Despite growing interest in constructs like empowerment, delegation, and participative leadership, the phenomenon of power transfer remains conceptually fragmented and undertheorized.

To address this, the dissertation defines power transfer as the intentional redistribution of authority, control, or resources by powerholders to lower-power individuals. Chapter 1 develops a typology of power transfer behaviors, organized along two key dimensions: extent of control …

Optimizing Fulfillment Operations For Online Retailing, Yujie Sun

Dissertations and Theses Collection (Open Access)

This thesis investigates order fulfillment operations for online retailing. Order fulfillment encompasses the entire process of receiving, processing, and delivering customer orders. The rapid growth of e-commerce has heightened the demand for efficient fulfillment operations. This thesis explores strategies for optimizing order fulfillment in three scenarios. The first scenario studies cellular bucket brigade, a method for coordinating workers in an assembly line or order-picking environment to improve workflow efficiency. The second scenario investigates zone picking, serial bucket brigades and cellular bucket brigades with hand-off times. The third scenario focuses on autonomous robotic systems within package sortation centers.

Chapter 2 investigates …

Government Guidance Funds And Corporate Innovation: An Empirical Examination Based On Hangzhou, Huaping Wang

Dissertations and Theses Collection (Open Access)

Since the establishment of China's first market-oriented government guidance fund in 2002, these funds have actively played a supportive role in addressing market failures and promoting the innovative development of technology enterprises by reducing information asymmetry in the primary equity market, releasing positive signals, and alleviating financing constraints. With the establishment and development of China's multi-tiered government guidance fund system, related research has gradually emerged. However, current studies primarily explore whether government guidance funds have fulfilled their role in fostering innovation from a macro perspective, with limited in-depth discussion from a micro-level on how these funds should conduct their investment …

Research On The Structural Antecedents And Contingencies Of Fluid Team Performance, Xiaodong Zhang

Dissertations and Theses Collection (Open Access)

In response to rapidly evolving markets and the pursuit of organizational agility, fluid teams—characterized by dynamic membership and flexible structures—have become prevalent as a key organizational form for addressing complex tasks and uncertainty. However, inherent challenges such as frequent member mobility and multiple project participation pose significant management difficulties and performance risks, including project delays and cost overruns, particularly evident in China's fintech sector. While existing research has begun examining fluid teams, systematic investigation into their structural antecedents and performance mechanisms—especially their contingencies across contexts—remains limited.

The study examines structural antecedents and contingencies of fluid team performance through a mixed-methods …

Environmental Influences Of Zero-Sum Thinking And Its Outcome, Edison Sora Tan

Dissertations and Theses Collection (Open Access)

Zero-sum thinking refers to a generalized mentality or a belief that one person’s gain can only come at the expense of another person’s loss. In this research, I argue that people’s zero-sum thinking is, at least in part, influenced by the interacting characteristics of the environment, namely, resource scarcity and population density. This is because resource scarcity highlights people’s resource insecurity, particularly when population density accentuates potential competition for finite resources. Consequently, zero-sum thinking reduces trust and cooperation as people reduce their commitment to potentially risky social investments. Analysis with data from a large-scale field study and ecological data provided …