Digital Commons Network^™

Machine Learning-Enabled Safety-Critical Model Predictive Control For Uncertain Dynamical Systems, Hossein Nejatbakhsh Esfahani

All Dissertations

This dissertation explores the interactions between Model Predictive Control (MPC), Safety-critical Control, and Artificial Intelligence (AI)/Machine Learning (ML) methods, with a particular focus on Reinforcement Learning (RL) and Bayesian Optimization (BO). We then leverage AI/ML to address several challenges in the control design and safe operation of uncertain dynamical systems. In many applications, ranging from autonomous vehicles and robotics to energy systems and industrial processes, ensuring safety is as essential as satisfying control objectives. The use of Control Barrier Functions (CBFs) within the MPC framework recently has emerged as a powerful tool to guarantee safety by enforcing constraints in optimal …

Secondary Special Education Teachers: Perceptions On Burnout Since The Start Of Covid-19, Regina Perez

Electronic Theses and Dissertations

This study examined burnout among secondary special education (SPED) teachers following the COVID-19 pandemic, which significantly disrupted education and intensified teacher stress. Burnout, defined by emotional exhaustion, depersonalization, and reduced personal accomplishment, has been linked to teacher attrition and decreased student achievement. The problem addressed was the increased levels of burnout and stress among SPED teachers and the lack of sufficient administrative support to mitigate these effects. The purpose was to explore SPED teachers’ perceptions of burnout since the pandemic and identify the supports needed to reduce it. Using a qualitative case study design grounded in Maslach’s burnout theory, the …

Penambahan Jumlah Kementerian Negara: Analisis Terhadap Efektivitas Dan Efisiensi Pemerintahan, Bayu Saputro, Alfi Syahri Lubis, Renaldy Wijaksana Wibowo, M. Fariz Al-Qindi

Jurnal Hukum & Pembangunan

The revision of Law 39/2008 on State Ministries, which removes the maximum limit of 34 ministries, has become a polemic issue in society. Analysis shows that increasing the number of ministries is not urgent and runs counter to the spirit of bureaucratic reform. This policy also does not improve the effectiveness of government administration, because the main issue affecting the effectiveness of ministries lies in the quality of ministers, not the number of ministries. The addition of ministries has the potential to cause overlapping authorities, regulatory disharmony, and sectoral egos. From an efficiency perspective, this policy places a heavy burden …

Ogallala Fall Field Days, Janis Paseka

Nebraska Bird Review

The 2025 NOU Fall Field Days were held in Ogallala on September 26–28, with about 80 in attendance. The programs were held at the Quality Inn, and the meeting was planned by Boni Edwards, Dave Cunningham, and Paul Pearson. Field trips were led by Tobin and Keegan Brown, Jacob Cooper and UNK ornithology students, Joel Jorgensen and Stephen Brenner, T. J. Walker, and Thane Dinsdale. Destinations included various sites around Lake McConaughy, Lake Ogallala, Cedar Point Biological Station, Sutherland Reservoir SRA, Ash Hollow State Historical Park, Crescent Lake NWR, Arthur Co and various Sandhills lakes. The total species count was …

Running The Race Twice As Hard: A Phenomenological Study On The Academic And Athletic Experiences Of Black Female College Student-Athletes At Predominantly White Institutions (Pwi), Jazmin Dunham

Education Doctoral

This qualitative transcendental phenomenological study explored the lived experiences of Black female college student-athletes at Division III predominantly White institutions (PWIs). Although Title IX and NCAA reforms expanded access to athletics, Black female student athletes continued to face unique challenges related to race, gender, and representation. These athletes often struggled with social isolation, microaggressions, and a lack of institutional and cultural support, which affected both academic performance and athletic participation. The study applied the theoretical framework of intersectionality to analyze how overlapping identities shaped these women’s experiences and contributed to broader patterns of marginalization in higher education and intercollegiate athletics. …

Cerebellar Purkinje Cell Stripe Patterns Reveal A Differential Vulnerability And Resistance To Cell Loss During Normal Aging In Mice, Sarah G Donofrio, Cheryl Brandenburg, Amanda M Brown, Tao Lin, Hsiang-Chih Lu, Roy V Sillitoe

Faculty, Staff and Students Publications

Age-related neurodegenerative diseases involve reduced cell numbers and impaired behavioral capacity. Neurodegeneration and behavioral deficits also occur during aging, and notably in the absence of disease. The cerebellum, which modulates movement and cognition, is susceptible to cell loss in both aging and disease. Here, we demonstrate that cerebellar Purkinje cell loss in aged mice is not spatially random but rather occurs in a pattern of parasagittal stripes. We also find that aged mice exhibit impaired motor coordination and more severe tremor compared to younger mice. However, the relationship between patterned Purkinje cell loss and motor dysfunction is not straightforward. Examination …

Existence, Difference, And The Nigerian Woman: A Feminist Praxis Beyond Patriarchy, Hannah Yemisi Ajewole

Dissertations

This dissertation investigates the postcolonial condition of Nigerian woman through a critical philosophical engagement with feminist theory, focusing particularly on Simone de Beauvoir’s existentialism and Irigaray’s ethics of sexual difference. It interrogates the historical processes through which gender became the basis of hierarchy in the Nigerian society, arguing that colonial and patriarchal override precolonial forms of relationality—marked by dual-sex relationship and age-based hierarchies—into rigid, male-dominated structures of authority and representation. Drawing also on Oyèrónkẹ́ Oyěwùmí’s critique of western gender epistemologies, the work contextualizes the Nigerian woman’s experience within a broader matrix of colonial imposition, cultural displacement, and epistemic violence. This …

Ukrainian Women In The Russo-Ukrainian War: Between Survival And Resistance, Jelena Nikolic Khatatbeh

Dissertations

This dissertation explores how the Russo-Ukrainian war has transformed the lives, identities, and resistance strategies of Ukrainian women. Drawing on in-depth, semi-structured interviews with forty-five Ukrainian women conducted between March 2022 and February 2023, it analyzes how everyday survival, political thought, and civic activism have changed during the war. Using a modified grounded theory approach and a feminist lens, this study examines women’s psychosocial experiences, their evolving political consciousness, and their active roles in humanitarian, cultural, and cyber resistance.Findings reveal that the war simultaneously reinforced and disrupted traditional gender expectations. While Ukrainian women dealt with increased domestic and caregiving burdens …

الدفاع عن الديمقراطية: ريادة النساء في منع وتخفيف حدة عنف الانتخابات, Briana Mawby, Arenne Taylor Flanders

Kroc IPJ Research and Resources

عتمد بشكل مبارش عىل توصيات وأولويات صانعات السالم حول العالم. ً � لصانعي السياسات والممولني ر يعترب تقرير Peace Waging Women دليًال أعمار والميول الجنسية ومستويات التعليم وا إإلعاقة وحاالت الهجرة وقد قامت صانعات السالم بتقديم هذه االستنتاجات المستقاة من كافة البلدان واأل ن االعتبار. واستند هذا التقرير إىل وجهات نظر وتجارب 106 من صانعات السالم من 43 أ � عمال بناء السالم بعني أنواع المختلفة أل مع أخذ سياقات ال زنزاع واأل ن عىل ي ر تساعد الرش � كاء الدوليني بلدًاً لتحديد أولويات بناء السالم لعام ،2025 والنظر يفي تحديات وإنجازات عام ،2024 وتوفرير � التوصيات التالية للطريقة …

Defender La Democracia: El Liderazgo De Las Mujeres En La Prevención Y Mitigación De La Violencia Electoral (Resumen Ejecutivo), Briana Mawby, Arenne Taylor Flanders

Kroc IPJ Research and Resources

Desde 1999, las integrantes de Women Waging Peace han sido cuidadosamente seleccionadas para formar parte de una red mundial única en su género que trabaja para poner fin a los ciclos de violencia. Con más de 1000 mujeres promotoras de paz de más de 56 países y más de 30 áreas de especialización en la construcción de la paz, la red impulsa enfoques basados en datos empíricos para construir sociedades más inclusivas y pacíficas. La red está auspiciada por el Instituto Kroc para la Paz y la Justicia.

El informe anual Women Waging Peace sirve de guía para los responsables …

Défendre La Démocratie : Le Leadership Des Femmes Dans La Prévention Et L’Atténuation De La Violence Électorale, Briana Mawby, Arenne Taylor Flanders

Kroc IPJ Research and Resources

Depuis 1999, les membres de Women Waging Peace sont soigneusement sélectionnées pour rejoindre ce réseau mondial unique, qui s’efforce de mettre fin aux cycles de violence. Avec plus de 1 000 membres issues de plus de 56 pays et expertes dans plus de 30 domaines de la consolidation de la paix, ce réseau favorise des approches empiriques visant à construire des sociétés plus inclusives et plus pacifiques. Le réseau est hébergé par le Kroc Institute for Peace and Justice.

Les décideurs politiques et les bailleurs de fonds utilisent le rapport annuel de Women Waging Peace comme guide en s’inspirant directement …

Sediment Burial Negatively Impacts The Growth Of Seagrass Posidonia Sinuosa, Chanelle Webster, Nicole Said, Natasha Dunham, Simone Strydom, Kathryn Mcmahon

Research outputs 2022 to 2026

Burial disturbances affect foundation plant species in marine ecosystems. Deposition of dredge spoil can bury seagrass meadows yet we have limited threshold information to predict the trajectory of impact from burial or possible recovery. To investigate the response to burial by dredge spoil, established seagrass ramets of Posidonia sinuosa were collected from a population in Western Australia and exposed to cutter suction dredge spoil sediment. Plant responses were measured during a burial phase after 2, 4 and 8 weeks to assess the influence of duration to burial depths (0, 1, 4, 8 and 16 cm). Sediments were then removed, and …

A National Survey Of Osteopaths’ Conceptions Of Practice In France: Structural Validity Of The Osteo-Taqfr And The Tendency Toward Technical Rationality, Oliver P. Thomson, Loïc Treffel, Agathe Wagner, Erwann Jacquot, Jerry Draper-Rodi, Chantal Morin, Brett Vaughan

Research outputs 2022 to 2026

Background: Despite the growing popularity of osteopathy in France, little is known about how French osteopaths conceptualise key aspects of their practice, including skills, knowledge, and decision-making. This study aimed to adapt and validate the Osteopaths' Therapeutic Approaches Questionnaire (Osteo-TAQ) for use in a French osteopathic population (Osteo-TAQfr) and to examine the professional profile and core elements of clinical practice among French osteopaths. The first objective was to establish the psychometric properties of the Osteo-TAQfr within a French osteopathic population. The second aim was to explore French osteopaths’ conceptions of practice and their approach to patient care, thereby contributing to …

Wacsaw: An Adaptive, Statistical Method To Classify Movement Into Sleep And Wakefulness States, Austin Vandegriffe, V. A. Samaranayake, Matthew S. Thimgan

Mathematics and Statistics Faculty Research & Creative Works

Wearable actimeters can improve our understanding of sleep in the natural environments. Current algorithms may produce inaccuracies in specific individuals and circumstances, such as quiet wakefulness. New hardware allows data collection at higher frequencies enabling sophisticated analytical methods. We have developed a novel statistical algorithm, the Wasserstein Algorithm for Classifying Sleep and Wakefulness (WACSAW), to identify behavioral states from recordings of everyday movement. WACSAW employs optimal transport techniques to identify segments with differing activity variability. Functions characterizing the segments' movement distributions were clustered into two groups using a k-nearest neighbors and labeled as sleep or wake based on their proximity …

Shale Investment Dashboard In Ohio Q3 And Q4 2024, Andrew R. Thomas, Mark Henning

All Maxine Goodman Levin School of Urban Affairs Publications

This report presents findings from an investigation into shale-related investment in Ohio, looking at up, mid, and downstream activities. The investment estimates are for July through December of 2024. The report also includes an estimate of cumulative investment into shale in Ohio from 2012 through December 2024. Prior biannual investments are included in previously posted reports that are available from Cleveland State University.

Government Learning Visit—Prep Ring Meeting Summary, Ipm South Africa

Dapivirine Vaginal Ring (PrEP Ring)

No abstract provided.

Child Development: A Developmentally Appropriate Practices Approach, Second Edition, D.R. Meece

Open Textbooks

The book follows a topical approach and covers children from prenatal to late childhood/early adolescence. The book follows a Developmentally Appropriate Practices approach, emphasizing that development results from the interaction of age-related expectations, culture and context, and individual child characteristics. The text is written for education majors, as well as others who will work with children and families in a variety of fields, including psychology, social work, nursing, and others.

Unlocking Literacy: A Structured, Systemic, And Multisensory Phonics Intervention For Struggling 5th-Grade Readers, Kimberly Driskell

Curriculum and Instruction (Ed.D.) Dissertations

A significant number of students missed essential foundational skills in the first grade when schools closed due to the global pandemic in 2020. When students returned to school for second grade, they were expected to start with grade-level standards rather than relearning the skills they had missed. This discrepancy caused gaps to grow larger in reading, and a larger percentage of students moved to the upper-grade levels, struggling to read. This study examined the effects of a structured, systematic, multisensory phonics intervention on struggling fifth-grade readers in the Early Intervention Program (EIP). Using implementation research, this study presented a quantitative …

Experimental Measurement Demonstration Of Initial And Steady-State Heights Of A Co2 Vertical Jet Fountain In Still Air, Brock Mcrae

Chemical Engineering Undergraduate Honors Theses

Atmospheric releases of heavier-than-air gases pose acute near-field hazards in low wind, yet the near-source behavior of vertical dense-gas jets in still air is sparsely documented. This thesis demonstrates a repeatable laboratory method for measuring the initial and steady-state rise heights of a carbon dioxide (CO₂) jet issued vertically from a floor nozzle in the CHRC ultra-low-speed wind tunnel under still-air conditions. Controlled mixtures (pure CO₂, 50/50 CO₂-air, 25/75 CO₂-air) were released at four flow rates (75, 100, 125, 150 LPM) with five repeats per condition. A fixed camera and tape-measure scale enabled video extraction of jet height using Kinovea …

Optimization In The Synthesis Of Dual Ionic-Liquid-Functionalized Cellulosic Materials, Megan L. Franke

Honors College Theses

There is a growing urgency to develop sustainable alternatives to petroleum-based materials as concerns about environmental impact and resource depletion intensify. Among renewable biopolymers, cellulose stands out as one of the most abundant and versatile organic compounds on Earth. As the structural backbone of plant cell walls, it provides rigidity and mechanical strength, while its abundance, biodegradability, and tunable chemistry make it an attractive candidate for sustainable materials. Beyond its traditional uses in textiles, paper, and food additives, cellulose has been increasingly investigated in polymer chemistry for advanced

applications. The present study aims to optimize synthetic routes to dual ionic …

Maria Gaetana Agnesi And The Proto-Feminist Movement, Katherine D. Wahnsiedler

Honors College Theses

Maria Gaetana Agnesi, a mathematician and scholar from the 18 th century, is an important historical figure who received a position at the University of Bologna. She is the second woman ever to be appointed to a University professorship, laying the foundation for other women in academia later to come. Many historians interpret Agnesi’s life to be representative of early feminist ideas and would therefore be an example of a proto-feminist. However, this is not accurate, nor is it an ideology Agnesi likely would have subscribed to. Analyzing primary sources written by Agnesi and her contemporaries helps provide insight into …

Adaptive Deep Learning In Physical Layer Applications, Ali Owfi

All Dissertations

Traditionally, signal processing models in communication systems have been designed based on solid foundations in statistics and information theory, often assuming linearity and optimizing for simplified models. However, real-world communication systems exhibit numerous imperfections and non-linearities that traditional linear models struggle to capture accurately. Deep Learning (DL)-based approaches, unconstrained by rigid mathematical models, have shown promise in optimizing system performance by accommodating specific hardware configurations and dynamic channel conditions as an alternative to the traditional methods. Despite all the recent research efforts on DL-based methods for physical layer applications, DL models have still not been widely applied to physical layer …

From Houston To Hamilton: A Cultural Comparison Of Texas And New Zealand, Kaela Towry, Cain Camarillo, Julian Moore, Melvin Melly, John-Luke Chidgey

Sociology and Anthropology Student Research - Archive

As a group we were tasked with creating a digitally formatted zine that draws comparisons between our own culture living in Texas and the culture of our peers at the University of Waikato in Hamilton, New Zealand. Our group chose to illustrate the similarities of the livestock industries that are prevalent in our respective home locations. For Texas, we explored the cattle industry and the cowboy lifestyle. For New Zealand, we explored the sheep farming industry and the native Maori culture of the nation. We also highlighted the ways in which media has altered or projected these cultural images (i.e. …

Interview With Orca Award Winner Karen Kunc, Unl Art; Abstract Print Artist, Mark Griep, Karen Kunc

UNL ORCA Interview Series

Emeritus Prof. Karen Kunc the Outstanding Research and Creative Activities Award in 1998. She was born in Ralston, Nebraska, in the Omaha Metro Area. Something in her youth must have sparked an interest in art because she earned her bachelor of fine arts degree from the University of Nebraska-Lincoln in 1975. Next, she ventured 800 miles east to Ohio State University in Columbus, where she earned a master of fine arts. For the next six years, she enhanced her teaching credentials as a printmaking instructor at the Columbus College of Art & Design. From there, she joined the University of …

Lend Me A Soprano, Lynn University

Drama Programs

Sponsored by: Al Zucaro

It's 1934, and the clever and combustible Lucille Wiley, manager of the Cleveland Grand Opera Company, is ready to welcome world-class soprano Elena Firenzi for her one-night-only starring role in Carmen. Alas, Elena arrives late, her impassioned husband Pasquale has a fit of jealousy, and it remains to be seen whether Mrs. Wiley's mousy but determined assistant Jo can save the day. Based on Ken Ludwig's Tony Award-winning Lend Me A Tenor, this madcap screwball comedy features ladies in the leading roles and is guaranteed to leave audiences teary-eyed with laughter.

By: Ken Ludwig …

How Do Server-Based Architectures Compare To Serverless Architectures In Terms Of Development, Deployment Process, Scalability, And Cost-Effectiveness?, Natalio Fernandes Gomes

Honors Program Theses and Projects

Applications are tested in developers’ machines before deployment, since this is the standard practice that ensures the software is functioning as it should before deploying it to a standard practice that ensures the software is functioning as it should before deploying it to a specific environment. The deployment process consists of setting up the environmental requirements, infrastructure configuration on cloud or on-premises servers. Consequently, developers often run into the infamous "It works on my machine" problem. This issue is defined by the fact that applications function correctly in development environments but fail during deployment to production. Furthermore, scalability concerns and …

European-Islamic Ceramics From The Eighteenth Century Onward, Katherine Collins

Honors Program Theses and Projects

The foundation for this examination rests upon prior research analyzing ceramic traditions and trade routes across East Asia and the Islamic Empires from the eighth to the sixteenth centuries. This knowledge establishes how East Asian innovations, such as porcelain and underglaze techniques, flowed westward through the Middle East via silk trade routes, profoundly influencing South Asian, Middle Eastern, and Ottoman ceramic production and aesthetics. They were able to trace how crucial Islamic technical traditions, including lusterware and tin-glazing, were subsequently transmitted to the Mediterranean basin through conquest and trade. This provided the technical vocabulary necessary for European precursors such as …

Self-Efficacy In Juvenile Probation Officers: An Examination Of Training, Eva K. Ott Hill

Master's Theses

The role of juvenile probation officers (JPO) has significantly changed in the past two decades. Rather than a focus on compliance, juvenile probation officers are tasked with using evidence-based practices focused on rehabilitation. Training is a key tool as it equips juvenile probation officers with the skills they need to implement new evidence-based practices and programs. Juvenile probation officers’ confidence in their ability to complete their changing job tasks should increase when they receive training. The current study examines how training impacts perceived self-efficacy among juvenile probation officers in Connecticut. The study seeks to understand what aspects of training impact …

Friction And Texture Evaluation Of Asphalt-Based Binders As Alternatives To Epoxy-Based High-Friction Surface Treatments, Alireza Roshan, Magdy Abdelrahman

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

High-friction surface treatment (HFST) is a safety-focused pavement treatment that restores and maintains pavement friction to reduce road accidents. Traditional epoxy-based HFSTs, while widely used, face challenges such as high costs, potential compatibility issues with the substrate pavement, and long-term durability under specific conditions. This study investigates asphalt-based alternative HFST, which is compatible with various pavement types and cost-effective and versatile solutions for a wider range of pavement applications. Performance and friction testing, including the British pendulum test, British wheel test, and dynamic friction test, were performed to examine the coefficient of friction (COF) before and after polishing with a …

Vol. 8, No. 2 Cover

Southern African Journal of Policy and Development

No abstract provided.