Digital Commons Network^™

Automated Sponge Segmentation With Mask R-Cnn On Arms Plate Images For Reef Monitoring, Mrunali Abhijit Thokadiwala

Master's Projects

Climate change-driven ocean warming and acidification are disrupting the ecological balance of coral reefs. Notably, these oceanic conditions are undermining coral health and accelerating their decline which is favoring some sponge species in outcompeting them for dominance. Although functional, these altered reefs destabilize the reef architecture, hinder nutrient cycling, and support fewer marine species. Thus, monitoring the growth and abundance of various sponges and understanding their roles at different stages of ecological succession in coral reefs is vital. Autonomous reef monitoring structures (ARMS) are often used for this purpose, but manual taxonomic analysis using their images is time-consuming, inconsistent and …

Improving Contextual Retrieval For Long Documents In Q & A Systems, Sakshi Garg

Master's Projects

With the vast amount of information available on the internet distributed across several lengthy documents, finding relevant information has become more important and challenging. The goal of this project is to develop advanced techniques to retrieve information from long texts in order to deliver accurate and relevant results while ensuring speed and efficiency. As part of this work, we employ techniques to address unique difficulties posed by large and complex documents. This paper presents a custom Retrieval-Augmented Generation (RAG) framework designed to improve contextual retrieval in long and multi-document settings. In this paper, we employ several techniques like summarization, semantic …

Comparative Analysis Of Embedding Techniques With Clustering Algorithms For Malware Opcodes, Ayush Koul

Master's Projects

Malware detection and classification remain critical challenges in cybersecurity, especially as malicious software becomes increasingly sophisticated and prevalent. While much of the work involving embeddings has traditionally relied on supervised learning approaches, there is significant potential in leveraging unsupervised learning techniques to discern hidden structures in malware data. By employing embedding techniques to convert malware samples into high-dimensional vector representations, we can capture the subtle and complex patterns inherent in malicious code without relying on pre-labeled data. This unsupervised approach helps categorize malware into predefined malware families, greatly aiding in developing cybersecurity solutions. In contrast to traditional supervised models that …

Gen Ai For Malicious Network Data, Aneesh Maturu

Master's Projects

Though botnet attacks are on the rise, they also have become sophisticated and difficult to detect. Such a rising threat demands more and more sophisticated cybersecurity that leverages machine learning technology. Nevertheless, one of the biggest bottlenecks remains the unavailability of large and well-balanced datasets, particularly for malicious traffic, which hampers the efficacy of detection models. In an attempt to address this issue, our research utilizes Generative Adversarial Networks (GANs) to produce synthetic samples of botnet traffic from the CTU-13 dataset. While the majority of generative models have been targeting image data, we use GANs for a new application: generating …

"Acoustical Bedlam": A Contextualization Of Beethoven's Christus, Leanna R. York

The Beethoven Journal

The premiere of Beethoven’s Christus am Ölberge at the Theater an der Wien on April 5, 1803, marked the composer’s first and only contribution to the complex tradition of the German oratorio. Since the genre’s inception at the turn of the eighteenth century, it reflected artistic, literary, and theological controversies of its day. Beethoven’s chosen theme, the passion of Christ, came with its own set of ever-shifting compositional and textual expectations, influenced by older traditions of sepolcri and staged oratorios (common in Vienna and at the court of the elector of Cologne after mid-century) and lyric works such as Graun’s …

Second Thoughts? Czerny, Beethoven, And The Ninth Symphony’S Choral Finale, Mark Evan Bonds

The Beethoven Journal

Sometime after the premiere of the Ninth Symphony, according to Carl Czerny, Beethoven told a small circle of friends that he had made a “wrong choice” in writing a choral finale, that he was resolved to write a purely instrumental finale in its place, and that he already had an idea in his head for the new finale. Czerny never committed this report to writing, but he did transmit it orally to three others who did: Leopold von Sonnleithner, Otto Jahn, and Gustav Nottebohm. Anton Schindler would later deny the report, but the available evidence strongly supports the veracity of …

Comparing E-Mosaics Predictions Of High-Redshift Proto-Globular Clusters With Jwst Observations In Lensed Galaxies, Joel Pfeffer, Duncan A. Forbes, Aaron J. Romanowsky, Nate Bastian, Robert A. Crain, J. M.Diederik Kruijssen, Kenji Bekki, Jean P. Brodie, Mélanie Chevance, Warrick J. Couch, Jonah S. Gannon

Faculty Research, Scholarly, and Creative Activity

High-resolution imaging and strong gravitational lensing of high-redshift galaxies have enabled the detection of compact sources with properties similar to nearby massive star clusters. Often found to be very young, these sources may be globular clusters detected in their earliest stages. In this work, we compare predictions of high-redshift (-10) star cluster properties from the E-MOSAICS simulation of galaxy and star cluster formation with those of the star cluster candidates in strongly lensed galaxies from JWST and Hubble Space Telescope (HST) imaging. We select galaxies in the simulation that match the luminosities of the majority of lensed galaxies with star …

A Privacy-Preserving Federated Learning Approach For Airline Upgrade Optimization, Sien Chen, Yinghua Huang

Faculty Research, Scholarly, and Creative Activity

Purpose: A key issue of making upgrade decisions is to match the most relevant upgrade offers to the right customers at the right time. To optimize upgrade strategies and profitability, companies seek to break “data silos” between themselves and other business partners for a more holistic view of customers' consumption experiences. However, multi-source data fusion may lead to potential privacy leakage. To overcome these two challenges in data silos and privacy protection, this study introduced a privacy-preserving federated learning (FL) approach and explained the process of using FL in modeling airline passengers’ willingness to pay for upgrade offers. Design/methodology/approach: Federated …

Realities Of Nutrition, Judi S. Morrill

Open Educational Resources

What Is Nutrition Reality? Is it in the advertising claims that a food is natural or supplies instant energy? Is it in the myriad of dietary supplements? Is it in the diet plans for instant weight loss and glowing health? The only way to find out is to learn the basic principles of nutrition science, so you can be your own nutrition expert. Here is the true introduction to nutrition that you will read with pleasure and real understanding. It will free you from dependence on popular sources of information - often misinformation - so you can distinguish illusion from …

Words And Stardom: Modernist Poetic Responses To Asta Nielsen, Karl E. Toepfer

Open Educational Resources

This essay discusses how four modernist poets portrayed the Danish movie star Asta Nilesen (1881-1972). German Hans Schiebelhuth (1895-1944) describes the "demonic" power of Nielsen's image to awaken dark aspects of his adolscent personality. For the Flemish poet Paul van Ostaijen (1896-1928), Nielsen's cinematic image provokes a radical shattering of language into extravagant "word-images." Danish writer Rudolf Broby-Johansen (1900-1987) linked Nielsen's image to a radical (Marxist) critique of oppressive sexual politics within a capitalist society. German Franz Behrens (1895-1977) composed a lengthy, expressionist ode to Nielsen from the perspective of one who actually worked as a screenwriter in the German …

Generating Synthetic Malware Samples Using Generative Ai, Tiffany Bao, Kylie Trousil, Quang Duy Tran, Fabio Di Troia, Younghee Park

Faculty Research, Scholarly, and Creative Activity

Malware attacks have a significant negative impact on organizations of varied scales in the field of cybersecurity. Recently, malware researchers have increasingly turned to machine learning techniques to combat sophisticated obfuscation methods used in malware. However, collecting a diverse set of malware samples with various obfuscation techniques is challenging and often takes years, especially for newly developed malware. This issue is further compounded by a well-known limitation of machine learning models: their poor performance when training data is scarce. In this paper, we propose a new system for generating synthetic malware samples to augment imbalanced malware dataset. Our approach decomposes …

Physiological Effects Of Research Handling On The Northern Elephant Seal (Mirounga Angustirostris), Lauren A. Cooley, Allyson G. Hindle, Cassondra L. Williams, Paul J. Ponganis, Shawn M. Hannah, Holger Klinck, Markus Horning, Daniel P. Costa, Rachel R. Holser, Daniel E. Crocker, Birgitte I. Mcdonald

Faculty Research, Scholarly, and Creative Activity

Wildlife researchers must balance the need to safely capture and handle their study animals to sample tissues, collect morphological measurements, and attach dataloggers while ensuring their results are not confounded by stress artifacts caused by handling. To determine the physiological effects of research activities including chemical immobilization, transport, instrumentation with biologgers, and overnight holding on a model marine mammal species, we collected hormone, blood chemistry, hematology, and heart rate data from 19 juvenile northern elephant seals (Mirounga angustirostris) throughout a translocation experiment. Across our six sampling timepoints, cortisol and aldosterone data revealed a moderate hormonal stress response to handling accompanied …

On Modeling Agent Behavior Change Through Multi-Typed Information Diffusion In Online Social Networks, Masaaki Miyashita, Norihiko Shinomiya, Daisuke Kasamatsu, Genya Ishigaki

Faculty Research, Scholarly, and Creative Activity

The rapid spread of information on online social networks (OSNs) has had both beneficial and detrimental societal impacts. Notably, the propagation of misinformation during events such as the COVID-19 pandemic has driven collective behavioral responses, sometimes exacerbating crises such as panic buying and bank runs. The toilet paper shortage in Japan in 2020 caused by people's selfish behavior owing to the diffusion of information to correct misinformation, which is considered a general phenomenon based on three sociological characteristics: a collective action problem, a self-fulfilling prophecy, and pluralistic ignorance. Understanding what kind and how information can inhibit selfish behavior to mitigate …

“I Bet Being Trans In The Netherlands Is Like Living In The Future”: Could The Netherlands Serve As An Imperfect “Gold Standard” Comparator For Transgender Youth Research In The United States?, Anna I.R. Van Der Miesen, Sharanya Rao, Abigail L. Fischbach, Alex C. Bakker, Marjolein Van Den Brink, Renata A. Sanders, Caitlin Ryan, Stephen M. Rosenthal, Joep Roeffen, Asaf Orr Esq, Heather Newby, Kathie Moehlig, Richard Mocarski, Kim Horsnell, Thijs De Greeff, Annelou L.C. De Vries, Aisa Burgwal, Owen Wilson, Annika Kooke

Faculty Research, Scholarly, and Creative Activity

Background: In available comparative studies, Dutch transgender youth have consistently shown better psychosocial well-being compared to those in other countries. Therefore, the Netherlands (N.L.) could be considered a gold-standard—though imperfect—comparator for transgender youth research. The United States (U.S.) is heterogeneous in its policies and practices impacting transgender youth, and policies are in flux. This study examines similarities and differences between U.S. and Dutch policies, practices, and contexts relevant to the well-being of transgender adolescents. Methods: A three-stage Delphi procedure was conducted with expert panels in the N.L. and U.S. Results: This process identified candidate mechanisms driving differences in outcomes for …

Empowering Customer Service With Generative Ai: Enhancing Agent Performance While Navigating Challenges, Charles Costa, Souvick Ghosh

Faculty Research, Scholarly, and Creative Activity

Introduction. As large language models (LLMs), such as GPTs, become more intelligent, a key area of exploration is how these technologies can improve the customer experience. Contrary to common belief, many consumers, including Gen Z, prefer human-provided customer service, illustrating the importance of human-AI collaboration in the space. Method. By leveraging the author’s real-world knowledge of enterprise knowledge management and customer service delivery, we reviewed numerous literature about AI, knowledge management, and service design and synthesised practical insights for industry professionals to build a successful AI strategy. Analysis. We examined the gap between academic research on generative AI and how …

Label-Free Visualization And Segmentation Of Endothelial Cell Mitochondria Using Holotomographic Microscopy And U-Net, Raul Michael, Tallah Modirzadeh, Tahir Bachar Issa, Patrick Jurney

Faculty Research, Scholarly, and Creative Activity

Understanding the physiological processes underlying cardiovascular disease (CVD) requires examination of endothelial cell (EC) mitochondrial networks, because mitochondrial function and adenosine triphosphate production are crucial in EC metabolism, and consequently influence CVD progression. Although current biochemical assays and immunofluorescence microscopy can reveal how mitochondrial function influences cellular metabolism, they cannot achieve live observation and tracking changes in mitochondrial networks through fusion and fission events. Holotomographic microscopy (HTM) has emerged as a promising technique for real-time, label-free visualization of ECs and their organelles, such as mitochondria. This nondestructive, noninterfering live cell imaging method offers unprecedented opportunities to observe mitochondrial network dynamics. …

Layover Start Timing Predicts Layover Sleep Quantity And Timing On Long-Range And Ultra-Long-Range Trips, Michael J. Rempe, Ian Rasmussen, Kevin Gregory, Cheyenne Johnson, Matthew Hsin, Erin Flynn-Evans, Amanda Lamp, Cassie J. Hilditch

Faculty Research, Scholarly, and Creative Activity

Study Objectives: Airline transport pilot sleep during layover is an important factor for alertness on subsequent flights. Assessing pilots' sleep on layover is an important first step in helping them obtain the most recuperative sleep possible on layover. Here, we investigate the quantity and timing of sleep during layovers and determine predictors for layover sleep. Methods: Sleep was assessed in 256 pilots flying a total of 473 long-range (LR; flight time 12-16 hours) or ultra-long-range (ULR; flight time > 16 hours) trips. Sleep was assessed using actigraphy. We employed linear mixed-effects models with layover sleep characteristics as the outcomes. The predictor …

The Chatgpt Fact-Check: Exploiting The Limitations Of Generative Ai To Develop Evidence-Based Reasoning Skills In College Science Courses, Ursula Holzmann, Sulekha Anand, Alexander Y. Payumo

Faculty Research, Scholarly, and Creative Activity

Generative large language models (LLMs) like ChatGPT can quickly produce informative essays on various topics. However, the information generated cannot be fully trusted, as artificial intelligence (AI) can make factual mistakes. This poses challenges for using such tools in college classrooms. To address this, an adaptable assignment called the ChatGPT Fact-Check was developed to teach students in college science courses the benefits of using LLMs for topic exploration while emphasizing the importance of validating their claims based on evidence. The assignment requires students to use ChatGPT to generate essays, evaluate AI-generated sources, and assess the validity of AI-generated scientific claims …

Using A Sober Curious Framework To Explore Barriers And Facilitators To Helping Sexual Minority Women Reduce Alcohol-Related Harms: Protocol For A Descriptive Study, Tonda L. Hughes, Lauren Bochicchio, Laurie A. Drabble, Belinda Lunnay, David Whiteley, Jillian R. Scheer, Beth Meadows, Paul Ward, Carol Emslie

Faculty Research, Scholarly, and Creative Activity

Background: Globally, women consume less alcohol than men, but alcohol consumption among women has declined less in recent years than among men. Drinking rates and alcohol-related harms vary substantially across population groups of women, and sexual minority women (eg, lesbian, bisexual, and queer) are at notably high risk. An emerging body of literature suggests that in addition to minority stress (eg, stigma, discrimination), drinking norms and drinking cultures likely influence sexual minority women’s drinking. Almost no research has explored these factors as possible targets of interventions. Sober curiosity is a rapidly growing wellness movement that may be particularly salient for …

Managing Compliance: The Role Of Leadership Styles In Information Security Practices In Nigerian Public University Libraries” Insights From North-East Nigeria, Musa Giade Ya'u Musagiade, Gaberial O. Alegbeleye, Madukoma Ezinwanyi

Library Philosophy and Practice (e-journal)

Background: Information security compliance comprises adhering to established policies, protocols and to ensure absolute security. Despite the importance of security compliance in academic libraries, evidence from previous studies reported a low level of information security compliance among personnel in public university libraries in North-East Nigeria. However, proper leadership styles influence information security compliance leading to absolute protection of information systems. So, this study explored the influences of leadership styles in security compliance in public university libraries in North-East, Nigeria.

Method: This study adopted a survey research design. The population consisted of 618 library personnel from the 14 public university libraries …

The Influence Of Maternal Size/Age Effects On The Physiological Responses Of Adult Female Gopher Rockfish (Sebastes Carnatus) To Ocean Acidification And Hypoxia, Dylan H. Sarish

Master's Theses

Climate change is rapidly reshaping the chemistry of the ocean. Fishes living in California coastal waters are experiencing increased ocean acidification and hypoxia (OAH) due to more frequent and intense upwelling. Nearshore rockfish may be particularly threatened by these conditions due to their long generational times. However, it is unknown how OAH may impact maternal physiology and reproduction in these viviparous fish. To understand the physiological effects of OAH during gestation, adult female gopher rockfish, Sebastes carnatus, were exposed to a variety of combined OAH stress treatments during different gestational stages. Routine metabolic rate (RMR), maximum metabolic rate (MMR), blood …

A Review Of Social, Behavioral, And Ethical Considerations For Smart Life Engineering, John Murray

Faculty Research, Scholarly, and Creative Activity

Smart Life (SL) systems do not exist in a technological vacuum; they are embedded in a social ecosystem and have rich and complex interactions with their surroundings. It is important to recognize that their design and implementation will have an impact on the individuals and communities around them. This chapter examines the social, behavioral, and ethical issues to be considered in a holistic systems approach to SL engineering, to help practitioners and stakeholders to design the strategies needed for successful SL deployments. It addresses these topics from several disciplinary viewpoints and provides a comprehensive set of references for those requiring …

Japanese Incarceration Memorial As Trauma Portfolio Play, A. J. Faas, Alyssa Singh, Cibella Gamma

Faculty Research, Scholarly, and Creative Activity

In collaboration with the Japanese American Museum of San José, California, we examined their exhibit of WWII-era incarceration of Japanese Americans to understand how the presentation of different positionalities (e.g., Japanese/American, loyal/disloyal) engage with and contest the terms of incarceration and internal politics within the Japanese American community. In our analysis, we focus on the reproduction and contestation of particular narratives of power and identity and treat the memorial exhibit as a variety of community-based “trauma portfolio” that unsettles state bureaucratic constructions of suffering and (in)justice. We conclude by identifying transformative possibilities for engaging with the different positionalities of incarcerated …

Ai-Generated Text Detection And Source Identification, Anjana Priyatham Tatavarthi, Faranak Abri, Nada Attar

Faculty Research, Scholarly, and Creative Activity

The use of advanced machine learning techniques to detect AI-generated text is a very practical application. The ability to distinguish human-written content from machine-generated text while identifying the source generative model helps address growing concerns about authenticity and accountability in digital communication. The differentiation of human-generated and AI-generated text is highly relevant to several applications, from news media to academic integrity, and is key to ensuring transparency and trust in content-driven environments. However, existing models are often insufficient to accurately detect AI-generated text and determine the specific AI source due to the complex nature of machine-generated content. To address this, …

Resilience Practices In Health Science And Medical Libraries During The Early Stages Of The Covid-19 Pandemic, Justin F. Gaynor

Faculty Research, Scholarly, and Creative Activity

This paper uses the concept of resilience engineering as an organizing principle to discuss best practices that evolved within health science/medical libraries in the United States during COVID-19 crisis, focusing on the period March–August 2020. Protection of library staff, assistance to medical staff, reducing the circulation of misinformation and public health consumerism all required substantial changes to standard processes. These process changes had to arise in the context of both physical isolation and information overload. Some practices became widespread due to their utility, and these are the focus of this report.

Evidence-Based Strategies For Novice Teachers: Increasing The Participation Of Students With Autism Spectrum Disorder In Integrated Physical Education, Kristina K. Vargo, Jihyun Lee

Faculty Research, Scholarly, and Creative Activity

Autism spectrum disorder (ASD) is a pervasive developmental disorder that impacts approximately 1 in 36 students. Because of its high prevalence, it is likely that all physical education teachers will serve students with ASD during their careers. Although physical education leads to many improvements in students’ physical and social skills, students with ASD may experience challenges in the integrated physical education setting due to various factors, including motivation, skill proficiency, challenging behaviors, and sensory stimulation. The purpose of this article is to describe the challenges faced by some students with ASD in integrated physical education and to provide novice teachers …

Reliability And Severity Levels Of The Voice-Related Experiences Of Nonbinary Individuals, Grace Shefcik, Pei Tzu Tsai, Satveer Kler

Faculty Research, Scholarly, and Creative Activity

Objectives: Clinicians providing gender-affirming communication services to nonbinary individuals often utilize client questionnaires. The Voice-related Experiences of Nonbinary Individuals (VENI) is the only published questionnaire exclusively for nonbinary clients. This questionnaire consists of 17 items that gain insight into the client's self-perception of voice and voice-related concerns. According to Shefcik and Tsai (2023), the VENI's content validity is good to excellent. This study evaluated the measure's reliability through internal consistency and test-retest reliability analyses and created impact ratings to support interpretation of scores. Study Design: This study utilized an online survey-based design with test-retest administration. The initial survey was administered …

Pain For Pain: The Benefits And Challenges Of Bdsm Participation For People With Chronic Pain–An Exploratory Study, Reni Forer, Bryce Westlake

Faculty Research, Scholarly, and Creative Activity

Research is beginning to find that many BDSM (bondage/discipline, domination/submission, sadism/masochism) practitioners experience benefits beyond sexual pleasure. Additionally, given the relationship between pain and pleasure common in BDSM, there may be certain unanticipated benefits for practitioners reporting chronic pain (PRCP). We conducted an online survey of an international convenience sample of BDSM practitioners (N = 525). Participants were asked about self-perceived benefits and challenges related to participating in BDSM with CP. Using chi-square, independent sample t-test, logistic regression, and linear-by-linear association, responses were combined with demographics, participation timelines, co-participants, motivations, and frequency of activities to identify differences between PRCP and …

Young Audience And Vod Platforms Of Linear Television. Perceptions About Playz, Mtmad And Flooxer, Belén Moreno Albarracín, Tania Blanco Sánchez

Faculty Research, Scholarly, and Creative Activity

Introduction: The new audiovisual paradigm, marked by flexible consumption, a wide catalog and a participatory audience, increases the interest of linear television in connecting with young people. To that end, the channels manage specialized content platforms. This research aims to analyze Mtmad, Playz and Flooxer, and the perceptions about them. The specific objectives are to examine the catalogs; evaluate identification with management chains; analyze youth-content identification and study their consumption habits. Methodology: A content analysis based on web structures and catalogs is proposed; and a survey of 160 young people about their knowledge, identification and consumption patterns. Results: Mtmad leads …

Validation Of A Self-Fitting Over-The-Counter Hearing Aid Intervention Compared With A Clinician-Fitted Hearing Aid Intervention: A Within-Subjects Crossover Design Using The Same Device, Lucas S. Baltzell, Kosta Kokkinakis, Amy Li, Anusha Yellamsetty, Katherine Teece, Peggy B. Nelson

Faculty Research, Scholarly, and Creative Activity

In October of 2022, the US Food and Drug Administration finalized regulations establishing the category of self-fitting over-the-counter (OTC) hearing aids, intended to reduce barriers to hearing aid adoption for individuals with self-perceived mild to moderate hearing loss. Since then a number of self-fitting OTC hearing aids have entered the market, and a small number of published studies have demonstrated the effectiveness of a self-fitted OTC intervention against a traditional clinician-fitted intervention. Given the variety of self-fitting approaches available, and the small number of studies demonstrating effectiveness, the goal of the present study was to evaluate the effectiveness of a …