Digital Commons Network^™

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 …

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 …

Stream Response To A Dam Removal: Mill Creek, Davenport, Ca, Jessica J. Williamson

Master's Theses

Dams have many effects on stream morphology and ecology, including a loss of sediment supply downstream, reduced access to the entire stream for aquatic fauna, and a flooded area upstream of the dam. Dams are a hurdle for migrating organisms such as anadromous fish, which is a group of concern. An over 100-year-old dam on Mill Creek, a stream draining a coastal watershed in central California, was removed in the fall of 2021. The site is in the Santa Cruz Mountains, where endangered salmonids such as steelhead, Oncorhynchus mykiss, have historically lived. To study the change in the stream from …

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 …

Improving Equity, Diversity, And Inclusion In Lis Education: Insights For Curriculum Development And Professional Preparation, Lili Luo

Faculty Research, Scholarly, and Creative Activity

Objective – To explore how the graduate-level Library and Information Studies (LIS) curriculum can be redesigned to be more socially justice focused and thus better prepare graduates to address equity, diversity, and inclusion (EDI) issues in their workplace. Design – A cross-sectional, descriptive online survey study. Setting – MA/PG Diploma program in LIS at University College, London (UCL). Subjects – 59 recent graduates from the MA/PG Diploma program in LIS at University College, London (UCL). Methods – Using the descriptive survey methodology, a 13-item online questionnaire was sent to a purposive sample of 733 alumni from the MA/PG Diploma program …

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 …

Moral Intensity Dimensions Of Information Security Policy Compliance: Perspectives Of Construal Level Theory And Ethical Theories, Dailin Zheng, Zhiping Walter

Faculty Research, Scholarly, and Creative Activity

Sanctions are often ineffective in promoting employee compliance with information systems security policies (ISSPs) and may lead to undesired outcomes. We establish that ISSP compliance is an ethical decision and examine it through the lens of ethical decision-making using scenario-based surveys. Guided by normative ethical theories and the construal level theory, we find that both the opinions of co-workers and perceived negative consequences of noncompliance to the organization influence employee ISSP compliance intention. Additionally, perceived social distance affects employees' assessment of when damages to the organization can occur. Both the assessed timing of damage and the perceived social distance from …

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 …

Self-Disclosure And Social Support In A Web-Based Opioid Recovery Community: Machine Learning Analysis, Yu Chi, Huai Yu Chen, Khushboo Thaker

Faculty Research, Scholarly, and Creative Activity

Background: The opioid crisis remains a critical public health challenge, with opioid use disorder (OUD) imposing significant societal and health care burdens. Web-based communities, such as the Reddit community r/OpiatesRecovery, provide an anonymous and accessible platform for individuals in recovery. Despite the increasing use of Reddit for substance use research, limited studies have explored the content and interactions of self-disclosure and social support within these communities. Objective: This study aims to address the following research questions: (1) What content do users disclose in the community?; (2) What types of social support do users receive?; and (3) How does the content …

Why Do Some Ultra Diffuse Galaxies Have Rich Globular Cluster Systems?, Duncan A. Forbes, Maria Luisa Buzzo, Anna Ferre-Mateu, Aaron J. Romanowsky, Jonah Gannon, Jean P. Brodie, Michelle L.M. Collins

Faculty Research, Scholarly, and Creative Activity

Some ultra diffuse galaxies (UDGs) reveal many more globular clusters (GCs) than classical dwarf galaxies of the same stellar mass. These UDGs, with a mass in their GC system () approaching 10 per cent of their host galaxy stellar mass (), are also inferred to have high halo mass to stellar mass ratios (). They have been dubbed Failed Galaxies. It is unknown what role high GC formation efficiencies and/or low destruction rates play in determining the high ratios of some UDGs. Here we present a simple model, which is informed by recent JWST observations of lensed galaxies and by …

“They're Like Slash”: Multimodality And Embodied Agency In Students' Critical Engagements With Texts, María José Aragón, Meghan Corella, Nora W. Lang

Faculty Research, Scholarly, and Creative Activity

Despite recent calls to more fully incorporate multimodal perspectives into literacies research, there is still limited scholarship examining how students critically engage in reading activities by drawing on embodied practices. Racially and linguistically minoritized students are particularly disadvantaged by dominant logocentric and developmentalist approaches, which privilege oral and written discourse and often position these students as less capable of performing complex literacy practices. Drawing from three independent ethnographic studies, our multimodal interactional analysis examines how students of a range of ages and raciolinguistic backgrounds use embodied actions and other semiotic resources to agentively navigate text, task, and ideological constraints in …

Assessing Total Mortality Following Seabird Wrecks Given Variable Data Quantity And Quality: The Cassin’S Auklet Die-Off, Timothy Jones, Julia K. Parrish, Parker Maccready, Lisa T. Ballance, David W. Bradley, Hillary K. Burgess, Jane E. Dolliver, James T. Harvey, Trevor Joyce, Kirsten Lindquist, Jacqueline Lindsey, Hannahrose M. Nevins, Jan Roletto, Laurie Wilson, Charlie Wright

Faculty Research, Scholarly, and Creative Activity

Mass mortality events (MMEs) of seabirds are becoming more frequent as the global climate warms. Often documented via beached bird surveys, methods for estimating event-wide mortality are needed that can accommodate regional differences in carcass deposition and data quality/quantity. We develop a framework for estimating mortality from beached bird counts, extending existing approaches through the novel application of ocean circulation modeling to assess beaching likelihood. We applied our framework to the 2014/15 Cassin’s auklet (Ptychoramphus aleuticus) MME, which spread across three regions (central California, northern California-through-Washington, British Columbia) with varying data quality/quantity. Our best mortality estimate of ∼400 000 (estimates …

Early Electronic Journals: A Preservation Survey, Nick Szydlowski, Rosa Salangsang, Daniella Kate Corpuz

Faculty Research, Scholarly, and Creative Activity

In 1994, the Association of Research Libraries (ARL) published a print directory containing information on every electronic journal that could be identified, anywhere in the world. Thirty years later, this study surveys the current availability and preservation status of those 443 journals. While a significant number of these journals are no longer available, the results indicate that independent preservation efforts by individuals and small groups were a major factor in preserving many of the remaining publications. This study uses the preservation survey method to assess the preservation environment for these journals, and also to build an online directory of the …

The Multiple Classes Of Ultra-Diffuse Galaxies: Can We Tell Them Apart?, Maria Luisa Buzzo, Duncan A. Forbes, Thomas H. Jarrett, Francine R. Marleau, Pierre Alain Duc, Jean P. Brodie, Aaron J. Romanowsky, Anna Ferré-Mateu, Michael Hilker, Jonah S. Gannon, Joel Pfeffer, Lydia Haacke

Faculty Research, Scholarly, and Creative Activity

This study compiles stellar populations and internal properties of ultra-diffuse galaxies (UDGs) to highlight correlations with their local environment, globular cluster (GC) richness, and star formation histories. Complementing our sample of 88 UDGs, we include 36 low surface brightness dwarf galaxies with UDG-like properties, referred to as NUDGes (nearly UDGs). All galaxies were studied using the same spectral energy distribution fitting methodology to explore what sets UDGs apart from other galaxies. We show that NUDGes are similar to UDGs in all properties except for being, by definition, smaller and having higher surface brightness. We find that UDGs and NUDGes show …

Can Household Water Sharing Advance Water Security? An Integrative Review Of Water Entitlements And Entitlement Failures, Melissa Beresford, Ellis Adams, Jessica Budds, Leila M. Harris, Wendy Jepson, Tennille Marley, Chloe Nguyen, Amber Pearson, Anaís Delilah Roque, Asher Y. Rosinger, Sameer H. Shah, Matthew Stellbauer, Amber Wutich

Faculty Research, Scholarly, and Creative Activity

An increasing number of studies find that water sharing—the non-market transfer of privately held water between households—is a ubiquitous informal practice around the world and a primary way that households respond to water insecurity. Yet, a key question about household water sharing remains: is water sharing a viable path that can help advance household water security? Or should water sharing be understood as a symptom of water insecurity in wait for more formalized solutions? Here, we address this question by applying Sen’s entitlement framework in an integrative review of empirical scholarship on household water sharing. Our review shows that when …

Smithian Merchant Towns And Good Government In The Wealth Of Nations, John B. Estill

Faculty Research, Scholarly, and Creative Activity

Commentators on Adam Smith’s Inquiry into the Nature and Causes of the Wealth of Nations often characterize Smith as a proponent of government in multiple areas, including security in person, property, contract, and some public goods. However, Smith understood government more expansively than people today. In volume I, book III, chapters I–IV, Smith describes the evolution of merchant towns in England that led to “good governance” that dismantled the feudal system. This limited government not only included the security provided by the formal laws and institutions. It also aligned the informal elements of individual civic ethics and self-reliance with the …

Avatars And Digital Identity: Branding In The Metaverse, Gema Bonales-Daimiel, Belén Moreno-Albarracín

Faculty Research, Scholarly, and Creative Activity

Considering avatars as virtual identities in digital universes, and according to the scarcity of previous research on the impact generated by them, this study delves into avatars’ emergence as personal brands within metaverses, assessing the mediation of AI in the design process and evaluating the impact of avatars on user experience and advertising. After carrying out a mixed methodology based on a survey to users, interviews to active companies in metaverses and avatars design specialists; and a content analysis of metaverse platforms, it’s been proved that avatars are revolutionizing digital communications, allowing immersive interactions and the implementation of virtual experiences …

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

Faculty Research, Scholarly, and Creative Activity

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 …

Grand Challenges For Human Factors And Ergonomics, Waldemar Karwowski, Gavriel Salvendy, Mica Endsley, William Rouse, Paul Salmon, Kay Stanney, Andrew Thatcher, Tony Andre, Jessie Yang, Hasan Ayaz, Ahmet Cakir, Vince Duffy, Colin Drury, Qin Gao, Yinni Guo, Peter Hancock, William S. Marras, Patrick Rau

Faculty Research, Scholarly, and Creative Activity

Contemporary society faces a growing set of complex global issues representing significant human health, well-being, and sustainability threats. Human Factors and Ergonomics (HFE) has a critical role to play in responding to these issues; however, there remain a set of grand challenges that require resolution. This paper presents and discusses six grand challenges for HFE and related key research thrust areas for each of the challenges. The grand challenges are (1) Evolution in Societal Thinking; (2) Future of Human Work in Industry 5.0; (3) Climate Change and Sustainability; (4) Future of Education and Training; (5) Future of Personalized Health, and …

Editorial: Enhancing Nutrient Profile, Safety, And Sustainability With Fermentation Technology, Oluwafemi Ayodeji Adebo, John Gieng, Xi Feng

Faculty Research, Scholarly, and Creative Activity

No abstract provided.

Inspection Technologies For Construction And Maintenance Of Highway Infrastructure – Review And Analysis, Manideep Tummalapudi, Prem Raj Timilsena

Mineta Transportation Institute

The Federal Highway Administration (FHWA) and state Departments of Transportation (DOTs) seek to provide high quality infrastructure that meets or exceeds the desired quality standards crucial for ensuring safety and efficiency in our nation's transportation systems. Efficient inspection practices—which enable conformance with plans, specifications, and quality standards—are an essential part of this effort. In this digital age, state DOTs are relying on emerging technologies to improve inspection practices. However, there is limited knowledge available regarding various emerging technologies used for highway infrastructure construction and maintenance inspection. This study identifies various emerging technologies that are implemented at the state DOTs and …

Bridging Sql Mastery And Career Confidence For Undergraduate Students Through Simulated Job Interviews, Dailin Zheng, Yu Chen, Leslie J. Albert

Faculty Research, Scholarly, and Creative Activity

Employers increasingly prioritize candidates who can solve real-world Structured Query Language (SQL) problems, particularly during technical interviews. However, many undergraduate students feel underprepared for these interviews because they have not engaged in the deep learning needed to apply SQL concepts confidently. Additionally, students often fail to recognize the career relevance of SQL skills. This Teaching Tip introduces an immersive SQL lesson designed to bridge the gap between conceptual learning and practical application. The lesson includes a mock SQL technical interview, where students apply their knowledge to solve real-world business problems, class discussions on SQL-related careers, and a post-interview debrief to …

Could Password Sharing Entitle You To Monitor Your Partner's Social Media Accounts?, Irum Saeed Abbasi, David Khabaz, Maryam Abbasi, Greg Feist

Faculty Research, Scholarly, and Creative Activity

Social media offers a plethora of strangers cum friends whose photo shopped images seem idealistic and more appealing than one's primary partner. Due to the physical absence and lack of non-verbal cues, online communications can quickly become aggressive and emotionally intimate. Emotional intimacy between online friends is considered a betrayal in a dyadic relationship. To protect mates from external relationship threats, romantic partners may request and/or coerce their significant other for social media account passwords. In a sample of 299 adults (women = 246) between18 and 72 years (M = 21.12, SD = 5.39), we explored the participants’ attitudes toward …

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. …

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 …

Poster: Synthetic Malware Generation Using Generative Models, Tiffany Bao, Kylie Trousil, Quang Duy Tran, Fabio Di Troia, Younghee Park

Faculty Research, Scholarly, and Creative Activity

Malware poses significant challenges to cybersecurity, exacerbated by the scarcity of high-quality datasets. This paper explores the use of Diffusion and Wasserstein Generative Adversarial Networks with Gradient Penalty (WGAN-GP) to generate synthetic malware samples as opcode sequences. The synthetic data, validated through classification metrics, demonstrates improved malware detection accuracy across families, particularly in addressing zero-day attacks. Results show that Diffusion achieves up to 99.6% accuracy in multi-class classification, outperforming WGAN-GP, which reaches up to 96.1%. Incorporating synthetic samples improves detection accuracy for rare malware families by up to 100%, underscoring the potential of generative models in enhancing malware detection.

Development Of Physics-Based Deterioration Models For Reinforced Soil Retaining Structures, Amr Morsy, Islam Ebo

Mineta Transportation Institute

Reinforced soil walls are key earth retention features in the transportation infrastructure. They are used to support and retain soil in a wide variety of crucial structures, such as highways, bridges, and railways, to ensure stability. They also provide solutions for constructing embankments and slopes in constrained spaces, allowing for efficient land use and improved infrastructure planning. This study used advanced numerical modeling to improve the understanding of the behavior and long-term performance of the aging reinforced soil walls from the 1970s for asset management purposes. An asset-scale model was created to simulate the effects of weather on these walls. …

Survey Of Building Information Modeling For Infrastructure (Bim4i), Maria Calahorra-Jimenez, Nigel Blampied, Elhami Nasr, Tariq Shehab

Mineta Transportation Institute

The rapid development of information technologies is transforming how data and information are produced, shared, exchanged, and managed. This transformation is accelerating in state departments of transportation (DOTs) across the country due to the pressing need for efficient means of delivering transportation projects and an enhanced need for internal and external collaboration. A key driver for this transformation is the implementation of Building Information Modeling for Infrastructures (BIM4I). The primary objective of this research was to develop actionable recommendations for DOTs to facilitate the effective adoption of BIM4I, based on national and international lessons learned and best practices. A four-step …

Understanding Mobility-Related Challenges For Aapi Older Adults: A Preliminary Study In Southern California, Yongping Zhang, Priscila Salgado Inzunza, Carol Kachadoorian, Wen Cheng, Calvin Wong

Mineta Transportation Institute

The Federal Highway Administration (FHWA) and state Departments of Transportation (DOTs) Nationwide, the Asian American Pacific Islander (AAPI) community is projected to constitute 11 percent of people 65 years and older in the United States by 2050 (He et al., 2005). The challenges limiting the transportation and mobility of AAPI older adults include, but are not limited to, language barriers, cultural barriers, anti-Asian hate, accessibility to public transit, traffic safety and public security concerns, and changes to mobility due to the COVID-19 pandemic. This project conducted an extensive literature review and a preliminary multi-language survey in Southern California to better …