Digital Commons Network^™

Opiophobia In Postsurgical Adults With Cancer, Karen E. Alsbrook, Valerie Shelton, Bryan M. Fellman, Eduardo Bruera, Eileen D. Hacker

Sigma Foundation for Nursing Research Grant Reports

The purpose of this study is to explore the occurrence of opiophobia among postsurgical adults with cancer and hypothesized associations among opiophobia, anxiety, depression, pain intensity, pain interference, and opioid medication adherence during the first week following hospital discharge for surgical treatment of a malignancy.

Uinta Basin Snow Shadow: Impact Of Snow-Depth Variation On Winter Ozone Formation, Michael J. Davies, John R. Lawson, Trevor O’Neil, Seth N. Lyman, Karlee Zager, Tristan D. Coxson

Bingham Research Center

After heavy snowfall in the Uinta Basin, Utah, elevated surface ozone occurs if a cold-air pool persists and traps emissions from oil and gas industry operations. Sunlight and actinic flux from a high-albedo snowpack drive ozone buildup via photolysis. Snow coverage is paramount in initiating the cold pool and driving ozone generation. Its depth is critical for predicting ozone concentrations. The Basin’s location leeward of the Wasatch Mountains provides conditions for a precipitation shadow, where sinking air suppresses snowfall. We analyzed multiple years of ground-based snow depth measurements, surface ozone data, and meteorological observations; we found that ozone levels track …

The Global Phase Space Of The Three-Vortex Interaction System And Its Application To Vortex-Dipole Scattering, Atul Anurag

Dissertations

This dissertation presents a global reduction of the classical three-vortex problem that is free from coordinate singularities, enabling a comprehensive analysis of the system's dynamics across all circulation regimes.

To achieve this, a two-step symplectic reduction procedure is developed. The first step introduces Jacobi coordinates adapted to the symplectic structure of the vortex system, and the second applies a Lie-Poisson reduction to the resulting system. This formulation eliminates the non-physical singularities associated with collinear vortex configurations and facilitates a global phase space analysis, including a detailed and novel investigation of bifurcations.

Within this reduced framework, all relative fixed points are …

Robust Ai Solutions For Financial Markets Through Generative Modeling, Dynamic Graph Learning, And Reinforcement-Based Portfolio Optimization, Jingyi Gu

Dissertations

Financial markets are inherently uncertain and dynamic, driven by complex factors such as macroeconomic signals, investor sentiment, and evolving inter-asset relationships. While machine learning has advanced financial modeling, existing approaches often fall short in addressing the real-world intricacies of finance. This dissertation confronts two critical challenges, human-driven stochasticity and risk-intensive decision-making under real-world trading constraints, while seizing a pivotal opportunity, the structural dynamics of evolving financial systems. These elements are foundational to advancing robust and practical financial intelligence.

To this end, this dissertation develops a unified framework for robust financial modeling and decision-making. The framework is architected as a progressive, …

Large-Scale Graph Algorithms And Applications With An Emphasis On Fintech Data, Fuhuan Li

Dissertations

Graph algorithms are essential analytical tools with applications spanning cybersecurity, biology, social media, and increasingly, financial technology (FinTech). The complex and interconnected nature of financial data, particularly in cryptocurrency networks, presents unique opportunities for graph-based analysis in fraud detection and anomaly identification.

This dissertation presents the design and implementation of scalable graph algorithms tailored for large-scale networks, with particular emphasis on FinTech applications. The primary contributions include: (1) novel cover-edge based triangle counting algorithms that significantly reduce computational overhead through breadth-first search preprocessing, achieving substantial speedups over traditional methods and dramatic communication reduction in distributed settings, (2) optimized parallel implementations …

Bodipy-Based Photocages For The Controlled Release Of Hydrogen Sulfide And Persulfides, Yanmei Li

Dissertations

Reactive sulfur species (RSS) such as hydrogen sulfide (H2S) and hydropersulfides (RSSH) are crucial mediators in a variety of physiological and pathological processes. Their regulatory roles span from maintaining cellular redox balance to influencing signaling pathways critical for homeostasis and stress responses. This dissertation investigates H2S and RSSH as biologically important molecules and explores the development of boron-dipyrromethene (BODIPY)-based photocages for its controlled, light-triggered release. Given H2S and RSSH's critical role in redox regulation and cellular protection, achieving spatiotemporal control over its delivery is essential for both therapeutic and research applications. BODIPY scaffolds offer favorable photophysical properties, including visible-light activation …

Reduced Order Models Of Hydrodynamically Interacting Flapping Wings, Jose Pabon

Dissertations

Fish schools exhibit a collective behavior and self-organization that is mediated by hydrodynamic interactions between individual fish. However, the long-time evolution of hydrodynamically interacting collectives is challenging to investigate due to the persistent influence of long-lived vortical structures, and the high-resolution requirements of direct numerical simulation at large Reynolds numbers. Reduced-order models have therefore played an important role in theoretical investigations of collectives of swimming bodies. The main results detailed herein are several new reduced-order models of swimmers that self-propel by flapping, i.e., by executing a prescribed periodic rigid body motion. The models are extensions of a discrete-time dynamical system …

Harnessing Graphs For Knowledge Representation In Natural Language Processing, Uras Varolgunes

Dissertations

This work proposes innovative methods for integrating domain-specific knowledge into natural language processing tasks through the use of graphs, aiming to enhance the performance of models across various domains, including finance and healthcare. Several novel approaches are proposed that fuse graph structures with modern deep learning techniques, addressing the challenges of missing word embeddings, label prediction, and graph representation learning for large language models.

First, a powerful embedding method built on top of the recent advances in latent graph learning is introduced to address the critical problem of word embedding imputation. Second, a graph-enhanced label attention model designed for medical …

Optimizing Hip And Knee Assistance For Walking And Sit-To-Stand Transitions: An Intrinsic Muscle Mechanics Based Predictive Approach, Neethan Ratnakumar

Dissertations

As the global population ages, the demand for wearable assistive technologies continues to rise, driven by their potential to enhance mobility and independence in older adults. Effectively designed controllers for lower-limb exoskeletons to assist sit-to-stand (STS) and walking are crucial for delivering efficient, safe, and comfortable assistance during daily activities. Traditionally, controller optimization involves biomechanical modeling and user-specific customization. Musculoskeletal simulations play a central role in this process by providing insights into human-exoskeleton interaction dynamics, thereby informing and refining control strategies.

This work presents a simulation-driven approach for developing exoskeleton controllers for walking and STS using two distinct methods: optimal …

Development And Implementation Of Novel Mass Spectrometric Methods For Metabolism Studies In Drug Discoveries, Huifang Yao

Dissertations

The field of drug discovery has evolved significantly over the past few decades, with a growing emphasis on understanding the metabolic pathways and biotransformation processes that influence the pharmacokinetics and pharmacodynamics of drug candidates. Novel mass spectrometric methods have emerged as powerful tools in this domain, facilitating the comprehensive analysis of metabolic profiles and enabling the identification of metabolites with implications for safety, efficacy, and overall drug development. However, challenges remain in quantifying metabolic flux—an essential aspect of understanding drug action—particularly due to the limitations of traditional isotope kinetic assays, which often involve lengthy sample preparation and the use of …

Multi-Messenger Diagnostics Of The Origin And Transport Of Solar Energetic Particles, Meiqi Wang

Dissertations

Impulsive solar energetic electron events (SEEs) are a common phenomenon originating from the Sun. They are characterized by rapid onset and brief duration, and are commonly associated with solar flares. Solar radio bursts, which offer a rich variety of diagnostic tools for solar activities, exhibits a close relationship with impulsive solar energetic electron events. Such diagnostics are particularly powerful when combined with multi-wavelength remote sensing and in situ observations. The dissertation focuses on combining state-of-the-art microwave imaging spectroscopy data obtained by the Expanded Owens Valley Solar Array (EOVSA) with other multi-messenger observations to investigate the origin of impulsive solar energetic …

Characterizing Fish Communities Using Traditional And Emerging Monitoring Approaches In San Diego County Estuaries, Natalie Katherine De Wet

Theses

Fish communities are essential to estuarine health, playing key roles in food webs, nutrient cycling, and ecosystem functioning. However, the persistence of native fish populations is increasingly threatened by the cumulative impacts of coastal development, pollution, and climate change. Rapid, effective monitoring of species distributions is a priority, enabling timely conservation and management. However, the study of any ecosystem is limited by time, resources, and the consideration that research of a system can damage the ecosystem under study.

This research aimed to characterize fish species richness and evaluate the benefits and limitations of different estuary monitoring approaches. Specifically, this study …

The Inevitability Of Local Environmental Law, Keith H. Hirokawa, Cinnamon Carlarne Hirokawa, Lauren A. Vanwagoner

Fordham Environmental Law Review

The United States is entering a new era of environmental law. Within the first few months of President Trump’s second term in office, the administration issued a mass of executive orders, memoranda and policy changes that seek to peel back environmental protections, in many cases, to the point of erasure. The administration shuttered entire agencies, such as USAID, dissolved the Environmental Protection Agency’s research arm, terminated life-saving programs like the National Weather Service’s translation service, cut funding to housing and public health initiatives, and eliminated diversity, equity, and inclusion programs across the country. Given the reality of these large-scale drawbacks, …

Methodological Insights From Evaluating A Family Member's Voice Reorientation Programme: An Interpretive Descriptive Approach., Johnson U. Gideon, Towell-Barnard Amanda, Mclean Christopher, Robert Glenn, Ewens Beverley

Research outputs 2022 to 2026

Background: Delirium is a prevalent acute brain dysfunction in patients within intensive care units. Delirium is marked by a fluctuating mental state, inattention, and altered consciousness. This condition affects a substantial proportion of patients in intensive care units, and which leads to increased mortality, severe physiological and psychological consequences, and a significant economic burden on healthcare systems. Despite the evidence that supports the use of non-pharmacological interventions to prevent or minimise the impact of delirium such as orientation, sensory stimulation, early mobilisation, and family involvement, their implementation in intensive care units remains inconsistent. The involvement of family members in the …

Manjón, Llobet, And Barrios In Chile: Concerts And Reception In The Newspaper Record, Pablo Soto Hurtado

Soundboard Scholar

Based on an investigation of newspaper articles, this article presents a first look at the activities of Antonio Jiménez Manjón, Miguel Llobet, and Agustín Barrios in Chile between 1893 and 1918. Manjón’s concerts were well received, clashing with some of the discourse in the local media, which considered the guitar vulgar and expressionless. Llobet introduced the Tárrega school in Chile in 1912, which is in itself a milestone in the study of Tárrega’s pedagogical philosophy in that country. Furthermore, his technique was praised and, like Manjón’s, led to the challenging of prejudices against the guitar. The case of Agustín Barrios, …

The Association Between Irregular Sleep Patterns And Learning Outcomes: Implications For Students’ Health In Iraq, Hazhmat Ali, Dildar Haji Musa, Ary Habeeb Mohammed, Hiwa Abdulraheem, Sherzad Salahadeen, Alind Mustafa

Makara Journal of Health Research

Background: Students often exhibit irregular sleep patterns due to rigorous academic workloads, which exert a considerable negative impact on their mental health. The present study aims to investigate the influence of irregular sleep on academic performance.

Methods: This study recruited a cohort of 409 medical students of both genders. Upon their consent, participants filled out a closed-ended questionnaire on various sleep parameters, including sleep habits, duration, and environment.

Results: Students with irregular sleep patterns reported higher rates of sleep deprivation, late sleep onset, and troubled sleep. Moreover, they spent a longer duration using smart devices before bedtime …

The Association Between Pain Catastrophizing, Somatization, Psychological Distress And Low Back Pain Severity Among Academics In Malaysia, Noordiyana Izyanti Mohamad Saufi, Eva Nabiha Zamri

Makara Journal of Health Research

Background: Psychological factors may influence the severity of low back pain (LBP), especially in high-stress professions such as academia. This study aimed to identify the relationship between psychological factors and LBP severity among Malaysian public university academics.

Methods: This cross-sectional study aimed to assess the relationship between psychological factors and LBP among academics at four public universities located in the northern region of West Malaysia. A self-administered questionnaire was used to collect information on sociodemographic characteristics, work information, lifestyle factors, LBP presence and intensity, and psychological factors. Data were analyzed using ordinal logistic regression and reported in terms …

Academic Burnout And Its Association With Sleep Quality, Physical Activity, And Social Media Addiction Among University Students In Perak, Malaysia: A Cross-Sectional Study, Kai Eng Joanne Lim, Khang Jin Cheah, Farzana Athirah Abdul Latif, Fatin Izzaty Mohd Shahrin

Makara Journal of Health Research

Background: Academic burnout among Malaysian undergraduates is a rising concern, driven by academic pressure and compounded by lifestyle and behavioural factors. This study aimed to examine the associations between academic burnout, sleep quality, physical activity, and social media addiction.

Methods: A cross-sectional study involving 382 undergraduate students was conducted using an online survey to collect the data. The chi-square test was used to assess bivariate associations, and multivariable logistic regression was employed to identify independent predictors of academic burnout.

Results: The majority of respondents were aged 21 to 23 years (59.7%) and female (60.7%). Overall, 56.0% of …

Psychometric Properties Of The Turkish Version Of The Palliative Care Attitude Scale (T-Pcas-9) In Cancer Patients, Sevgi Demir Çam, Neşe İşcan Ayyildiz, Hasan Evcimen, Timüçin Çil, Berna Bozkurt Duman

Makara Journal of Health Research

Background: A reliable, validated Turkish measurement tool will allow researchers to measure the impact of attitudes towards palliative care on other health outcomes in individuals with chronic and critical illness. This study aimed to examine the Turkish psychometric properties of the Palliative Care Attitude Scale (PCAS-9) for individuals with cancer.

Methods: The Turkish adaptation of the PCAS-9 (T-PCAS-9) included 505 cancer patients, who were aged >18 years, had a diagnosis of cancer, and no mental problems. The factor structure of the T-PCAS-9 was examined using exploratory factor analysis, confirmatory factor analysis, convergent-divergent validity, and measurement invariance analysis.

Results: The three-factor …

A Study On Nutritional Status Among Regular Gym Goers In And Around Chennai, India, Ettiyappan Thirumurugan, Kalpana Devi Venkatesan, Pavithra Tamilmani, Devika Preetha, Joyce Albert Princy Mariya Selvanathan, Dhanyasree Mohandas, Ameer Basha Sathik, Santhosh Kumar Manjunathan, Ashika Kannadhas Sheeba

Makara Journal of Health Research

Background: The increasing sales of sports supplements indicate a concerning trend, as many gym-goers may misuse these products owing to misinformation and insufficient knowledge, potentially impacting their performance. This issue is further compounded by specific gym trainers who may lack comprehensive information and inadvertently influence their clients' choices. To address this concern, the present study evaluated dietary supplement practices and sports nutrition knowledge among regular gym-goers at fitness centers in Chennai, India.

Methods: A cross-sectional survey was conducted from November 2023 to May 2024 using a validated questionnaire distributed across Chennai, India. A total of 450 participants were …

Raising Provider Awareness Of Fluid Status In Women Undergoing Elective Cesarean Section Through The Use Of A Preoperative Checklist To Assess Fluid Status: A Quality Improvement Project, Marcus Miller, Michael Sorge

Doctor of Nurse Anesthesia Practice (DNAP) Manuscripts

Abstract

Maternal hypotension following neuraxial anesthesia during cesarean section is a common and potentially harmful complication. While vasopressors are often used for this issue, they carry risks to fetal well-being. Goal-directed fluid therapy (GDFT) provides an individualized approach that may improve outcomes by optimizing fluid status perioperatively. This quality improvement project aimed to increase provider awareness of fluid status through the implementation of a preoperative checklist that assessed fluid status in women undergoing cesarean section. A preoperative fluid assessment checklist was developed using evidence-based predictors of fluid status and integrated into anesthesia workflow. The project followed the Plan-Do-Study-Act cycle and …

I Do, And I Will: Effectual Religiosity May Strengthen The Triad Chord Of Commitment For Women Of Faith, Tamara M. Chamberlain, Loren Marks, David C. Dollahite, Ashley Lebaron-Black, Elizabeth Kay Madsen, Christina N. Cooper

Faculty Publications

Although religiosity is commonly linked to marital satisfaction in sociological research, few studies have examined how it strengthens marital commitment among women of faith. This study explored the perspectives of religious, heterosexual married women using interviews in the United States from 196 highly religious couples with successful marriages. Three core themes emerged: (1) personal commitment—including the decision to marry, religious beliefs and practices, and the need for effort and sacrifice; (2) moral commitment—highlighting sexual relations before marriage, promises made before God, family, and friends, and views on fidelity and divorce; and (3) structural commitment— emphasizing the role of a religious …

Initial Coin Offerings As An Alternative Method For Raising Capital: Legal Considerations And Regulatory Solutions In Indonesia, Juwita Patty Pasaribu, Febby Mutiara Nelson, Topo Santoso, Fransiska Ari

Indonesia Law Review

Blockchain technology has been used in various sectors, notably in facilitating crypto asset transactions, specifically for processing an Initial Coin Offering (ICO) or token sales that were first introduced in 2013. In Indonesia, it can be observed that there are several legal issues in the execution that expose them to potential misuse in the ICO transaction, leading to criminal activities. Additionally, Indonesia was ranked as the second-highest country in the world to experience crypto asset fraud schemes in 2019. To address legal issues related to ICO, this study aims to provide a comprehensive legal assessment of ICO as a modern …

Optimizing The Role Of Notaries In Digital Property Inheritance: A Comparative Legal Analysis, Tjhong Sendrawan, Rosa Agustina, Edmon Makarim, Arman Nefi, Josephine Rus Indra Sapti Ipfelkofer

Indonesia Law Review

One of the provisions in inheritance laws regarding the transfer of digital property after someone's death is a relatively new and evolving area of legal consideration. Inheritance laws were developed long before the widespread adoption of digital property, such as cryptocurrencies, non-fungible tokens (NFTs), online accounts, and other forms of digital property. As a result, existing inheritance laws often lack clear guidance on how to control the legal transfer of these digital assets upon the owner's death. This article aims to analyze the legal concept of digital property to be inherited and to provide solutions for current digital property inheritance …

Low-Cost Cutaneous Protoporphyrin Ix (Ppix) Detection (Cpd) Device For Follow-Up Monitoring Of Patients After Photodynamic Therapy, Md Asaduzzaman Rasel

Graduate Masters Theses

Background: Photodynamic Therapy (PDT) utilizes specific wavelengths of light to activate photosensitizing chemical compounds, known as photosensitizers, which induce the generation of cytotoxic reactive oxygen species (ROS) for the targeted destruction of cancer cells. Among various photosensitizers for PDT, Protoporphyrin IX (PpIX) is widely employed in oncology and dermatology due to its natural in situ generation via the metabolic conversion of 5- aminolevulinic acid (ALA), a non-phototoxic prodrug. Systemic administration of ALA after 3-6 hr drug delay leads to peak PpIX accumulation in tissues, facilitating therapeutic and diagnostic applications. However, PpIX can persist in the skin for 24–48 hours post-treatment, …

Exploring Potential Impacts Of Polyethylene Mesh And Polypropylene Rope Leachate On Bay Scallop (Argopecten Irradians) Survival And Growth, Katherine R. Johnson

Graduate Masters Theses

The bay scallop (Argopecten irradians), a commercially and ecologically significant bivalve along the Eastern coast of the United States, has faced severe population declines due to various anthropogenic impacts. At the same time, the proliferation of plastics, particularly in maritime industries, has introduced new threats to marine environments through both physical pollution and chemical leaching. This study aimed to assess the acute toxicological effects of leachates from two commonly used plastic products, polyethylene Netron and polypropylene rope, on A. irradians larvae. Experiments were conducted in June–July 2023 at the Nantucket Shellfish Hatchery. Leachates were prepared by incubating 0.5, …

Sugar: A Sequence Unfolding Based Transformer Model For Group Activity Recognition, Yash U. Gondkar

Graduate Masters Theses

Large Language Models have improved significantly in the past couple of years due to the adoption of transformers. However, transformers still find it challenging to process videos due to limited context size caused by their quadratic computing cost. Therefore, we studied a booming field in machine learning which powers applications like social scene analysis and video surveillance systems called Group Activity Recognition (GAR). We found that recent models were able to achieve more than 90% accuracy on popular datasets like the Volleyball dataset, however, it turned out that even they relied on transformers.

Therefore, in this work, we developed a …

The Role Of Intolerance Of Uncertainty In Prenatal Anxiety: Exploring Meta-Cognitive And Psychosocial Moderators, Jenna A. Macri

Graduate Masters Theses

Prenatal anxiety is common and has been linked to myriad adverse psychological and physical health outcomes for both the pregnant individual and the child. While research on factors contributing to the etiology and maintenance of prenatal anxiety is limited, intolerance of uncertainty has been identified as a key factor related to anxiety during pregnancy. The current study aimed to substantiate the role of intolerance of uncertainty in prenatal anxiety and explore meta-cognitive and psychosocial constructs as potential moderators of the relation between intolerance of uncertainty and prenatal anxiety. Additionally, due to inconsistencies in the operationalization of prenatal anxiety in the …

Valoración De La Composición Corporal, Por Antropometría, En Atleta Paralímpico, Eliana Patricia Cuellar Carvajal, Juan Sebastián Torres Quijano

Ciencias del Deporte y la Educación Física

La evaluación de la composición corporal es de suma importancia en la preparación del paratleta, pues se ha convertido en un aspecto de interés, gracias a las investigaciones en las ciencias del deporte. Es posible determinar un perfil de la composición corporal para una modalidad deportiva, que contribuya al éxito competitivo y es importante considerar el impacto y tipo de discapacidad en el deportista, a fin de garantizar un asesoramiento en el paratleta que oriente de modo adecuado su plan de entrenamiento deportivo que genere un impacto positivo en su rendimiento.

The Effect Of Maternal Diet On Neonatal Jaundice: A Case-Control Study, Marzieh Mahdipoor, Alireza J. Motlagh, Hamid S. Baghbanan, Mahmood Bakhtiyari, Zohreh Khodaii, Sara E. Saeieh

Sultan Qaboos University Medical Journal

Objectives: This study aims to investigate the influence of dietary heat intensity in maternal diets on the incidence of neonatal jaundice. Specifically, we examine whether maternal consumption of "dietary heat intensity" foods affects neonatal bilirubin levels, while controlling for potential demographic and obstetric confounding factors. Methods: This retrospective case-control study was conducted between October 2023 and September 2024. The study population consisted of mothers and their newborns attending healthcare centers in Alborz Province, Iran. Based on predefined inclusion and exclusion criteria, 152 newborns were enrolled, comprising 75 non-jaundiced and 77 jaundiced infants. Data were collected using an information-gathering form and …