Digital Commons Network^™

A Neural Network-Based Sliding Mode Adaptive Control System For Unmanned Surface Vehicles, Sun Qiaomei, An Liang, Jiang Linglin

Journal of Marine Science and Technology–Taiwan

Over the past decades, numerous studies have explored the use of autonomous unmanned surface vehicles (USVs). Successful USV operation requires a robust tracking control system to perform a range of tasks. However, USV dynamics are uncertain, time-varying, and nonlinear. This paper presents a neural network-based sliding mode adaptive control (NNSMAC) system to enhance USV tracking performance. Trajectories were generated using spline and polynomial interpolation based on a set of N predefined waypoints. Simulation results show that the proposed method outperforms traditional sliding mode control in error reduction, enabling more effective tracking.

The Biomechanics Of Braking Squat And Split Braking Squat: An Experimental Approach, Ariel Atias

Theses and Dissertations

An experimental study was undertaken to investigate the biomechanics of braking and split braking squat among NCAA jumpers under three incremental loading conditions (BW, BW+50%, BW+100%). Fifteen males (age 20.6±2.61years, weight 80.36±10.52kg, height 183.06±5.22cm) performed both exercises. One-way RMANOVA, Bonferroni post-Hoc tests were conducted independently on each exercise. Braking squat showed 38% reduction in peak vertical ground reaction force from BW to BW+50%, 53% from BW to BW+100% (all p≤0.001); split braking squat, 34% reduction from BW to BW+50%, 63% from BW to BW+100%, 29% from BW+50% to BW+100% (all p≤0.001). Braking squat showed 53% increase in ground contact time …

More Than Players, More Than Coaches: Institutional Agents And Youth Development In Urban And Suburban Minority-Majority Neighborhoods, Rainah N. Folk

Theses and Dissertations

Institutional agents play a crucial role in shaping youth development. While the institutional agent framework is well established in postsecondary research, less is known about its role during mid-adolescence. Using relational ethnography and responsive interviewing, this study compares an urban and a suburban high school in minority-majority neighborhoods in Cook County, Illinois, to explore how development is influenced through relationships between sport coaches and high school athletes. Athletes in both contexts face significant challenges tied to neighborhood conditions and socioeconomic status. In response, coaches form deeply caring and supportive relationships, though their roles diverge in ways shaped by their urban …

The Development Of A One Pot, Two Reaction Synthetic Preparation Of 1,2,4-Oxadiazole, And Synthesis Of Ataluren, A Novel Drug In The Fight Against Duchenne Muscular Dystrophy. Efforts Towards The Synthesis Of A Potential Protease Inhibitor Against The Main Protease (3clpro) Of Covid-19, Austin J. Carter

Theses and Dissertations

1,2,4-Oxadiazoles are five-membered heterocyclic structures first synthesized by Tiemann and Krüger in 1884. Recent discoveries suggest an array of useful biological properties.In preparation of 1,2,4-oxadiazoles, the most prevalent precursors are amidoximes, which can be created via the reaction of nitriles with hydroxylamine hydrochloride and a base. The amidoximes are reacted with an activated carboxylic acid to yield an acylated intermediate. This intermediate can be exposed to a base to cyclize into the 1,2,4-oxadiazole. This thesis describes the efforts in combining these three steps into a unified one-pot synthesis.

Currently, there are a significant number of commercially available FDA approved and …

The Path From Acceptance To Adoption For Linguistic Innovations Dealing With Gender In The Language Classroom, Juan Carlos Acevedo Fontecha

Theses and Dissertations

This dissertation investigates the factors influencing the acceptance, rejection, or adoption of gender inclusive and gender-non-identifying forms among language users. The study draws on responses from 25 students in a linguistic class to evaluate innovations in English and from 23 instructors of Spanish to evaluate innovations in Spanish. Participants took part in a survey designed to evaluate existing forms endorsed by the United Nations, and gender-non-identifying forms, such as the -e morpheme in Spanish or singular they in English, promoted by community-generated guides. Quantitative and qualitative data were analyzed side by side to better understand the participants’ reasoning regarding these …

Site-Specific Modification Of Antibodies Utilizing Microbial Transglutaminase For Improved Immunoassay Performance, Emily Beitello

Theses and Dissertations

Immobilization strategies used for fixing antibodies to solid phase surfaces significantly contribute to the antigen capture capacity and influences the performance and sensitivity of immunoassays. Traditional methodologies result in the random orientation and/or the weak attachment of immobilized antibodies. Different formats of immunoassays scope in applicability to many fields of research and everyday use. Improving the efficiency of immobilizing antibodies in immunoassays is a beneficial endeavor to increase assay sensitivity. Here, we investigated the use of enzyme-mediated conjugation of antibodies to facilitate a highly oriented immobilization. Microbial transglutaminase (mTG) catalyzes the covalent bond formation between a plethora of primary amine …

At The Mercy Of All Things: Nurturing Experimental Queer Writing On Embodied Mothering, Charley Koenig

Theses and Dissertations

This dissertation is an exploration of the ability of experimental queer writing to grow and transform expressions of mothering and care. The moves made here—both in the scholarship and anchor texts examined herein and in my own contributions to this effort—work to dethatch those toxic dominating narratives on motherhood, enforced and reinforced by our current Western society and culture, that contaminate and restrict our constructions of what it means to be and do mother. The collective work of experimental queer writers makes possible more nuanced, realistic, messy, complex, varied, embodied, liberating, and literally and figuratively dirty renditions of mothering and …

Savior To Ally: Exploring White Students' Decisions To Major In Social Work Through The Lens Of White Saviorism, Amy S. Dennison

Theses and Dissertations

This qualitative study explored how white students chose social work as a major and how white savior ideology reinforced or challenged students’ choices. The study contributes to a gap in the literature regarding white saviorism and social work education. Using a phenomenological approach, data were collected through semi-structured interviews from five undergraduate social work students at one Midwestern state university. Transcripts were analyzed thematically using Moustakas’ data analysis for phenomenology framework. The findings revealed that participants chose social work because of an intent to help others, as well as a desire for their work to have a meaningful impact. White …

Weighted Suffixation And Symbiosis In Morphology: The Suffixes -Meister And -O, Zachary Dukic

Theses and Dissertations

This dissertation focuses on derivational morphology, specifically the historical development and current status of the suffixes -meister and -o in Present-day English. I approach this research from the perspective of language as a complex adaptive system and apply a network model of linguistic storage and processing. I identify semantic domains for each suffix via exemplars which demonstrate the semantic range and variability of -meister and -o. I propose definitions for weight and delexicalization as they pertain to the evolution of these suffixes. Both have gained lexical weight via cumulative semantic associations determined via the network …

Loma Linda Nurse - Vol. 33, Loma Linda University School Of Nursing

Loma Linda Nurse

FEATURES

4 | The Strategic Pillars of LLUSN

6 | Building Campaign Update

8 | Scholarship Opportunities

10 | Andreia Lofthouse: Assistant Dean of Student & Alumni Relations

LLUSN HIGHLIGHTS

12-17 | ALUMNI NEWS

18-27 | ACADEMICS

28-32 | HOMECOMING

33-35 | FACULTY UPDATES

Characterizing The Photochemistry And Photophysics Of Benzoylbenzoate And Formylbenzoate Anions Using Cryogenic Ion Spectroscopy, Olivia Caroline Moss

Yale Graduate School of Arts and Sciences Dissertations

Marine chromophoric dissolved organic matter (mCDOM) is a large and complex class of material predominantly found at the air-water interface in bodies of water. While it is known to generate radicals and unwanted byproducts, such as HONO· and ·OH, the mechanism of formation for these products currently is unknown. In this dissertation, a bottom-up approach is utilized to investigate possible reaction pathways by scaling down to small-molecule models of mCDOM. Namely, this dissertation investigates the photochemistry and photophysics of benzoylbenzoates (BBA¯). Analysis of the UV spectrum of the deprotonated species reveals two dominant processes upon photoexcitation of 4BBA¯, tag loss …

Cultural Identity In Mental Health Services And Helpseeking Behaviours Among African International Students, Mark Ofosu Asirifi

Theses and Dissertations

Acculturation stress impacts international students’ psychological well-being and academic success, yet research on African students remains limited. For African international students, this stress is intensified by cultural stigma surrounding mental health services, deterring help-seeking due to fears of judgment and ostracization. This identity negotiation complicates their willingness to access support, reinforcing cultural barriers to mental health care. This study explores how cultural identity shapes the mental health perceptions and help-seeking behaviors of African international students in the United States. Grounded in the Communication Theory of Identity (CTI) and the Health Belief Model (HBM), the research examines how acculturative stress, stigma, …

Barriers To Mental Health Among International Students: Identifying Challenges And Developing Support Strategies For Depressive Symptoms, Esi Tb Afful

Theses and Dissertations

Objective: The purpose of this study was to examine barriers to mental health service utilization among international students, with a specific focus on challenges related to depressive symptoms and their coping mechanisms. The study also sought to identify factors that influence international students’ engagement with mental health resources.

Method: A total of 30 international students enrolled at a midwestern university participated in this mixed-methods study. Data were collected through an online survey, which included both closed- and open-ended questions. The quantitative portion of the survey assessed demographics, cultural and immigration challenges, mental health service utilization, and social support. Hierarchical multiple …

Marks Of Heritage: Chicana Tattoo Artists Navigating Gender, Culture, And Artistic Expression In "Men's Work", Ryleigh Hickman

Theses and Dissertations

Art, and tattoos especially, have been fundamental in creating and articulating an identity for Chicanos within the United States. Yet, for much of the history of Chicano style tattoos, Chicana/xs were not free to engage with them in the same way that Chicanos were. In many regards, their entrance into these spaces was restricted (Santos 2009). However, recently with the growing interest in tattoo art and career opportunities, the industry has expanded significantly, creating more opportunities for a broader range of individuals. This research aims to explore how young Chicana/x and Latina tattoo artists now accessing these spaces navigate and …

Listening To The Body: Attunement And Advocacy In Women's Experiences Of Endometriosis, Rebekah E. Greenslaugh

Theses and Dissertations

Endometriosis is a chronic, inflammatory condition in which tissue similar to the endometrial lining grows outside the uterus, leading to severe pain, fatigue, and other debilitating symptoms. Despite its significant impact on daily life, many women with endometriosis report that their symptoms are dismissed in medical encounters, as their pain is minimized or normalized as an inherent aspect of womanhood. This medical dismissal, combined with a lack of definitive diagnostic tools and effective treatments, leads many to turn to online support communities to make sense of their symptoms, share experiences, and develop ways to cope with the condition. Drawing on …

Ole Rna Is A Component Of A Large Particle That Promotes Bacterial Growth Under Diverse Stresses, Seth Eugene Lyon

Yale Graduate School of Arts and Sciences Dissertations

Prior to the 1980s, RNA macromolecules were largely viewed as a transient carrier of the genetic code used for protein synthesis, with little chemical versatility beyond Watson-Crick-Franklin base-pairing. The discovery of catalytic RNAs in 1982, however, upended this view and established that RNA was a chemically capable biopolymer. Since then, several classes of RNA with functions independent from protein synthesis have been discovered in all domains of life. Excluding those that have functions relevant to protein translation, noncoding RNAs that are large (> 200 nt) and have a conserved, complex structure are rare in bacteria. However, as more bacteria were …

Utilizing Graph Theory Algorithms For The Modeling And Analysis Of Covid-19 Infection Dynamics, Ioannis Adamopoulos, Antonios Valamontes, Niki Syrou, Jovanna Adamopoulou, Antonios Bardavouras

Mesopotamian Journal of Artificial Intelligence in Healthcare

The COVID-19 outbreak has shown how urgently good models are needed to understand and project the dissemination of infectious diseases. Graph theory's excellent basis for presenting and analyzing complex networks helps one to grasp COVID-19 transmission dynamics. This work investigates the simulation and evaluation of the COVID-19 spread using multiple graph theory approaches. We utilize algorithms, including centrality assessments, community detection, and epidemic spreading models, to identify significant transmission channels and viable intervention sites; we also study the usage of network-building strategies to show relationships between individuals and communities. By incorporating real-world data with graph-based models, we demonstrate how these …

Social Justice Unionism: Intersectionality In The Twenty-First Century Workplace, Shirley Lin

Faculty Scholarship

No abstract provided.

Generational Exposures To Cerium Oxide Nanoparticles And Perfluorooctanesulfonic Acid Affect The Performance Of Daughter Plants, Preston Clubb

Graduate Theses/Dissertations

The effects of parental stress on the performance of next generation exposed to another contaminant were investigated. Wheat was exposed to cerium oxide nanoparticles (CeO2-NPs) in first and second generations and exposed to perfluorooctanesulfonic acid (PFOS) in the third generation. Phenotypic or metabolic responses were assessed at 21-day (short-term exposure) or 90-day (long-term exposure) exposure periods. Biomass production, chlorophyll content, enzyme activity, and membrane damage were measured at short-term exposure, while elemental and PFOS concentrations, and grain metabolites were analyzed in long-term exposure. Results showed that continued exposures to CeO2-NPs and PFOS enhanced chlorophyll content but reduced concentrations of important …

Advancing Natural Resource Management Through Artificial Intelligence, Jonathan Fisk

Graduate Theses/Dissertations

Natural aquatic systems are characterized by complex ecological processes and interactions occurring across multiple scales, and quantifying them is essential for proper management. However, managers often face decreasing budgets, increasing responsibilities, and limited staffing, resulting in challenges related to data prioritization, digitization, and management. While modern analytical technologies offer powerful tools, their effectiveness relies heavily on timely and accurate data input from diverse sources, including written, audio, and visual formats. Traditional data management practices are time-consuming, particularly due to the need for manual data verification. To address these challenges, innovative technologies leveraging artificial intelligence (AI)—including deep learning, machine learning, and …

Civilian Manufacturing And National Defense: Strategic Planning For Globalization's Challenges, Izeck Kohler

Graduate Theses/Dissertations

This thesis examines the interconnection between civilian manufacturing and national defense within the context of globalization. The study aims to identify the challenges faced by the United States in maintaining its manufacturing capabilities and to propose strategic solutions to address these challenges. Through a comprehensive analysis of historical data, case studies, and policy recommendations, the research highlights the critical role of specialized and process manufacturing sectors towards national defense. The findings suggest that the creation of a federal executive department, strategic investment, diversification, policy re-evaluation, and collaborating with allies are essential for sustaining national defense capabilities. The study concludes with …

The Role Of Sptbn1 Protein In Microglia Cells Actin Structure And Hiv-1 Infection, Rachel Pecka

Graduate Theses/Dissertations

Human immunodeficiency virus (HIV) directly attacks the host immune system by infecting and replicating in CD4-presenting immune cells. Like most viral pathogens, HIV utilizes cellular machinery to assist in viral entry, transport, and export. One of the components HIV is known to utilize for replication is the actin cytoskeleton. By directly binding to actin or actin-binding proteins, HIV can manipulate structural dynamics within the cell. The way HIV hijacks actin for replication post-viral fusion isn’t fully understood, especially during viral transport to the nucleus. A 2013 study conducted by Dai et al. found that lowering the expression of the cellular …

Tricolored Bat (Perimyotis Subflavus) Population Genetic Structure In The Southeastern United States, Laura Henderson

Master's Theses

Tricolored bats (Perimyotis subflavus) have experienced substantial population losses from white-nose syndrome (WNS), a disease caused by the pathogenic fungus Pseudogymnoascus destructans (Pd) which infects hibernating bats. Determining population genetic structure helps assess genetic diversity and the impacts of wildlife threats to populations. Pre-WNS data shows weak-to-negligible structure and panmictic P. subflavus populations at core portions of their range. However, current genetic data from their southeastern U.S. range is lacking. I sought to determine whether recent genetic data help resolve genetic structure among southeastern populations and assess genetic differences at two stages of impact: post-WNS and …

2025-2026 Course Catalog, University Of Montana--Missoula. Office Of The Registrar

University of Montana Course Catalogs, 1895-2024

An annual catalog of courses and course descriptions offered at the University of Montana.

University Faculty Association Collective Bargaining Agreement, 2025-2029, University Of Montana--Missoula. University Faculty Association

University Faculty Association Collective Bargaining Agreements, 1978-2025

Collective bargaining agreement between the University of Montana University Faculty Association [UFA] and the Montana University System.

Parafamily, Christina Mulligan

Faculty Scholarship

No abstract provided.

The First Iucn Red List Of Cold-Water Corals Highlights Global Declines, Julia D. Sigwart, A. Louise Allcock, Renata Carolina Mikosz Arantes, Kelsey Archer Barnhill, Narissa Bax, Julia S. Beneti, Saskia Brix, Gudmundur Gudmundsson, Catherine S. Mcfadden, Severin A. Korfhage, Christi Linardich, Declan Morrissey, Pedro De Oliveira Nascimento, Bárbara De Moura Neves, Steinunn H. Ólafsdóttir, Stefán Ragnarsson, Kaveh Samimi-Namin, Íris Sampaio, Mark E. De Wilt

Biological Sciences Faculty Publications

The most well-known species-based conservation tool is the International Union for the Conservation of Nature (IUCN) Red List of Threatened Species. The current coverage of species in the Red List is known to under-represent benthic marine species. Cold-water corals (CWCs) are increasingly recognised as key to deep-water biodiversity and integral to protected vulnerable marine ecosystems (VMEs), but no deep-sea coral species were previously included in the Red List. We selected 22 cold-water coral species in the Northeast Atlantic, including 4 reef-forming stony corals and 18 octocorals including sea pens and gorgonians, and completed the first IUCN Red List global assessments …

A Blueprint To Greener Shorelines: Advancing The Effectiveness, Sustainability, And Widespread Adoption Of Coastal Nature-Based Solutions Through Transdisciplinary Research, Taylor M. Sloey, Sierra Hildebrandt, Rebecca L. Morris, Matthew V. Bilskie, Aaron Bland, David Bushek, Gabriella Dipetto, Daniel Elefant, Vincent Encomio, Ramin Familkhalili, Christine Hladik, Danielle Kreeger, Avery B. Paxton, Cindy M. Palinkas, Latina Steele, Andrew Scheld, Daisuke Taira, Jason D. Toft, Armando J. Ubeda, Christine Whitcraft, Donna Marie Bilkovic

Biological Sciences Faculty Publications

Coastal nature-based solutions (NbS) have emerged as powerful tools to enhance sustainable development and ecological restoration goals. As a rapidly growing field spanning across social, political, ecological, economic, and engineering disciplines, it is critical that researchers working in coastal NbS regularly attempt to identify emerging focal areas for scientific inquiry. Following the 27th Biennial meeting of the Coastal and Estuarine Research Federation, we provide a transdisciplinary perspective (including biologists, engineers, oceanographers, geoscientists, economists, and facilitators of workforce training programs) of pertinent research questions that, if answered, will advance the effectiveness, sustainability, and widespread adoption of coastal NbS. These suggestions for …

Thermal Tolerance Limits Of Mesophotic Corals In American Samoa, Daniel Barshis, Veronica Z. Radice, Katherine E. Parker, Nicholas Evensen

Biological Sciences Faculty Publications

We analyzed the thermal tolerances of multiple coral species from an upper mesophotic (38–40m) and a shallow reef (5–10m) with our portable Coral Bleaching Automated Stress System (CBASS). Depth generalist Montipora grisea (deep and shallow) and depth specialists Pachyseris speciosa and Leptoseris sp. (deep only) were assayed from Leone, located on the western coast of Tutuila in American Samoa. Fragments from 10 genotypes of each species were exposed to a 17-hour thermal stress assay reaching four maximum temperatures ranging from 30–38°C under in situ light conditions (150 μmol photons m⁻² s⁻¹ under a Lee Filters “deep …

Form And Function In Mobulids: A Comparative Analysis Of Filter Morphology With Bioinspiration Applications, J. B. Teeple, S. R. Kahane-Rapport, K. E. Cohen, L. Hamann, J. A. Strother, E. W. M. Paig-Tran

Biological Sciences Faculty Publications

Mobulas (manta and devil rays) are large-scale ram filter feeders that separate planktonic food particles from large volumes of water with minimal clogging. This contrasts with most human-made filters that can suffer from problematic clogging requiring additional mechanisms for clearing blocked surfaces and maintaining performance. Prior studies have shown that mobulas employ a unique mechanism referred to as ricochet separation to filter feed, whereby captive vortices in filter pores cause particles to bounce off the filter surfaces and away from the filter pores. This mechanism enables the filtration of particles smaller than the pore size and reduced clogging. However, few …