Digital Commons Network^™

Cyclone Intensity Prediction In The Bay Of Bengal Using Deep Learning Methods, Senthil Kumar J

Theses and Dissertations

The Bay of Bengal region's coastlines have been badly devastated by tropical cyclones, as the region experiences an average of five to six cyclones per year, with about two to three of these intensifying into tropical storms or severe cyclones. Thus it necessitates to study the accurate and efficient forecasting of their intensity to improve preparedness and response to natural disasters. The present study compares and examines three distinct approaches to cyclone intensity prediction using historical datasets from 1998 to 2020: hybrid optimisation, deep learning-based, and empirical approaches.The predicted accuracy, computational effectiveness, and feasibility for real-time scenarios of each model …

Development Of Powder Activator From Agro-Industrial Waste And Its Application In The Preparation Of One-Part Alkali Activated Concrete, Anoop Kn

Theses and Dissertations

The environmental concerns associated with the traditional ordinary Portland cement (OPC) such as CO2 emission and high energy demand along with resource depletion as binder has led to the development of alkali activated binders (AABs). Even with the reduction in environmental issues, the implementation of AAB in practice is hindered by the handling issues of liquid activators. Hence, it is required to develop AAB with powdered activators to address the handling issues and to further reduce the environmental issues related to the production of activators. This research investigates the development of one-part alkali-activated concrete (OAAC) system utilising wastederived materials as …

Design Of An Integrated Lightweight Cryptographic Algorithm For Device Level Security And Fraternal Cryptographic Algorithm For Communication Security In Medical Cyber Physical Systems, Vimala Devi P

Theses and Dissertations

Healthcare involves detecting symptoms, diagnosing conditions and giving treatment to patients. It is one of the fundamental human rights, and it might be difficult to provide healthcare to those with chronic illnesses, elderly people with disabilities and those under distant observation. The World Health Organisation (WHO) states that Cardio Vascular Disease (CVD) is the leading cause of death worldwide.

According to the prediction, CVD-related causes such as heart attacks and strokes, could result in 23.3 million deaths by 2030. In addition, the number of people with diabetes will reach 246 million; thereby, the prevalence of CVD patients and diabetics will …

Investigations Of Secure Memory For Vlsi Based Crypto System, Vijay Sai R Mr

Theses and Dissertations

Semiconductor technology is growing very rapidly in their architectural developments, involving the usage of processor and memory. Presence of memory, in general is a vital commodity in various devices which are almost embedded into human activity, from robust work stations to handy mobile phones. Security of data stored in memory is very important, and hence, observation must be made that these valuable data should not be thwarted by malicious means. Security in cache memory is a major issue in memory related applications such as smart cards and bio-metric implementations.

Cache, is a small and limited memory located between central processing …

Benthic Community Composition And Ecosystem Function In Southern Kachemak Bay, Alaska, Jonah Jossart

Marine Biology

The benthic environment in southern Kachemak Bay, Alaska provides critical ecosystem services, processing organic matter from the land and the sea, and returning nutrients to the food web. In Kachemak Bay, concerns have arisen that marine agriculture (mariculture) operations in the form of salmon hatcheries and oyster farms may have negative impacts on the local environment. This thesis investigates the seafloor sediment environment to assess these potential impacts under salmon hatchery net pens in Tutka Bay Lagoon, and under an oyster farm in Jakolof Bay. We found that beneath the net pens, high waste inputs of fish food, feces and …

Dissolved And Particulate Nutrient Dynamics In The Northern Gulf Of Alaska: A Productive Subarctic Shelf Ecosystem, Emily Ortega

Oceanography

The Northern Gulf of Alaska (NGA) is a biologically productive system, culturally and economically sustaining Alaska’s coastal communities, with inorganic nutrients as an important foundation of this important food web. Nonetheless, seasonal cycles, interannual variability, and nutrient chemistry all influence nutrient dynamics, creating challenges in the overall understanding of the NGA ecosystem and the resources it provides. Therefore, this work examines nutrient sources, sinks, and trends over time and location to identify and explain key nutrient dynamics within the NGA. One key process is the exchange between dissolved (potentially bioavailable) and particulate nutrients that is examined in Chapters Two and …

Post-Fire Riverscapes: Exploring The Ecological And Behavioral Responses Of Stream Communities To Wildfire In Boreal Streams, Elizabeth Geraldine Hinkle

Fisheries

Wildfire is the dominant disturbance in boreal forest ecosystems, and its frequency and severity are increasing with climate change. This dissertation examines how wildfire affects boreal stream habitats, food webs, and fish movement across spatial and temporal scales in interior Alaska. In Chapter 2, I compared burned and unburned streams 10 to 15 years post-fire using habitat survey, water chemistry, and aquatic community composition data. Burned sites had marginally significant lower canopy cover (-19.6%, p = 0.095), coarser substrate (+23.7 mm, p = 0.102), and higher macroinvertebrate abundance (626 ± 361 vs. 331 ± 349 individuals/m2, p = 0.03); fish …

Geol 12 Natural Disasters Syllabus, Anestoria Shalkowski

Open Educational Resources

Hazards are events which have the capabilities to damage property and or life. Understanding natural hazards and how these can become disasters are important in reducing the impacts of such events. This syllabus provides a description of the material to be examined and the expected student outcomes upon completion of the course.

Factors Affecting Nest And Brood Survival Of Rock Ptarmigan (Lagopus Muta) In Interior Alaska, Robert Wiltzen

Biological Sciences

Rock ptarmigan (Lagopus muta) are a circumpolar species endemic to high elevations and latitudes of North America and are common throughout Alaska. The r- selected life history of ptarmigan indicates that reproduction and specifically nest and brood survival is the most important component of population growth. However, factors affecting these population parameters have not been studied extensively or intensively, since there have only been three studies done in Alaska. Rock ptarmigan exhibit population fluctuations, which may be caused by changes in reproduction and survival due to predation and weather events. Warming climatic patterns and shifts in the range of their …

Exploring Longitudinal Stability Of Spatiotemporal Sequential Patterns By Means Of Autoencoder Schemes For Eeg Based Personal Identification, Muhammed E. Oztemel

LSU Doctoral Dissertations

Robust personal identification remains a critical and challenging task in the digital era. Electroencephalography (EEG) offers a unique biometric modality that captures individual brain dynamics through complex neural signals. This dissertation proposes autoencoder (AE) based feature extraction and subject identification through these features. EEG recordings are first transformed into topographic maps to represent spatial brain activity. Consecutive topomaps are then concatenated to capture temporal transitions across frames. Convolutional autoencoders (CAEs) are used to learn spatial and temporal patterns, while domain-adaptive AEs are designed to model evoked potential based responses. Additionally, self-attention mechanism is incorporated to enhance feature representation. To analyze …

Development Of Low-Profile Wideband Microstrip Antennas For Cubesat Phased-Array Applications, Mitchell R. Hay

Engineering

CubeSat missions rely heavily on effective communication systems in order to transmit and receive large amounts of data quickly and efficiently. The total throughput is limited by the capacity of the channel - a quantity dependent upon the signal quality and bandwidth of the link. Volume and power constraints on a CubeSat impede overall capacity in a fixed bandwidth channel. Phased-array antennas provide a more power efficient solution to improving signal quality by optimizing the spatial properties of the link, rather than broadcasting higher signal power over a broader area through power amplification alone. In order to take advantage of …

Hazard Identification And Analysis For Equipment-Related Fatal Incidents In The Us Underground Coal Mining, Ebenezer Kofi Anthony

Engineering

This study investigates equipment-related fatal incidents in U.S. underground coal mining from 1993 to 2023, analyzing trends, causes, and the effectiveness of safety measures. Using data from the Mine Safety and Health Administration (MSHA), this study examined 205 fatalities linked to continuous miners, shuttle cars, roof bolters, load-haul-dump (LHD) vehicles, longwall systems, and hoisting equipment. A mixed-methods approach combines the quantitative analysis of accident trends with qualitative models, such as Failure Mode and Effects Analysis (FMEA) and Bowtie Analysis. The findings revealed that powered haulage and machinery accidents were the leading causes of fatalities, with mechanical failures (40%), human errors …

An Investigation Of Ichthyophonus Infection Related In-River Mortality In Yukon River Chinook Salmon From Multiple Knowledge Systems: Indigenous, Local, And Western Science, Keith D. Herron

Fisheries

The recent historic low salmon returns in the Yukon River contribute to an ongoing humanitarian crisis for subsistence users and Indigenous Peoples with cultural and well-being ties to salmon. After over a decade of relative calm, the marine parasite Ichthyophonus has undergone a resurgence and is once again infecting Yukon River Chinook salmon (Oncorhynchus tshawytscha; king; Taryaqvak; Ggaal; Gath; Łuk choo, hereafter referred to as king salmon) at high rates, with currently unknown consequences for survival of migrating adults. This thesis pairs multiple knowledge systems to assess the prevalence, severity, and impact of Ichthyophonus on adult Yukon River king salmon …

Navigating The Psychosocial Landscape Of Ehlers–Danlos Syndrome: An Autobiographic Case Study, Jessica D. Locke, Jason T. Eastman

Sociology

Living with a rare disorder, such as Ehlers–Danlos Syndrome (EDS), presents unique psychosocial challenges. This autobiographical case study explores the psychological, social, and professional impacts of navigating life with hypermobile EDS (hEDS), a condition marked by chronic pain, joint instability, and diagnostic uncertainty. Placing personal experiences into the context of clinical findings and research, this study highlights both the physical and emotional toll of the syndrome, including stigma, isolation, and medical gaslighting often accompanying rare conditions. The first-person case study of the first author extracted by the second author experienced in qualitative interviewing provides a first-hand account of the importance …

Seasonal Predictability Of Sea Ice And Boreal Fire In Alaska, Cecilia Borries-Strigle

Atmospheric Sciences

Attribution studies have shown that warming Arctic temperatures have led to a substantial loss of sea ice and an increase in large wildfire seasons. With wildfire and sea ice decline impacting everyday life by disrupting transportation or damaging infrastructure, for example, a clear need for skillful forecasts at seasonal timescales has emerged. This dissertation addresses critical challenges in seasonal prediction for wildfire and sea ice in Alaska. The first study evaluates outlooks of Buildup Index derived from three seasonal forecasts to assess their skill in predicting fire conditions. Forecast skill is greatest during the wind (April 1-June 10) and drought …

Social Thought From The Ruins: Quixote’S Dinner Party, David A. Westbrook

Books

Through stories, conversations, and essays, this book pursues interwoven critical and philosophical inquiries into the nature of the contemporary in the North Atlantic, asking how are we to live as intellectuals, individually and in community? Social Thought From the Ruins: Quixote’s Dinner Party is the product of informal discussion and academic work done over the last two decades among an international group of social scientists. An extended critique of academic life today and the context of our own thinking, this book interrogates aspects of our modernity, with its pervasive sense of crisis and uncertainty, and the difficulty of thinking clearly …

Differences In Fitness Between Cadet And General Population Firefighter Academy Recruits, Scott D. Brau, David Cornell, Benjamin J. Mendelson, Rudi A. Marciniak, Kyle Ebersole

International Journal of Exercise Science

International Journal of Exercise Science 18(8): 774-793, 2025. This longitudinal study explored entry route- and age-related fitness differences between cadet (CR) and general population (GR) firefighter recruits. Fitness data were collected from eight separate firefighter recruit academy cohorts (N = 317; 122 CR, 195 GR; 27.17 ± 7.58 yrs, 177.30 ± 8.72 cm, 88.65 ± 17.78 kg). In the first week of the academy, recruits completed an assessment battery including: body composition via skinfold measures to estimate body fat (BF, %) and fat-free mass (FFM, kg); aerobic fitness (VO_2peak, mL· kg^-1· min^-1) and …

Performance Analysis Of Pem Fuel Cells Via Puma Optimizer With The Aid Of Practical Verifications, Hossamm Ashraf, Sameh O. Abdellatif, Mahmoud M. Elkholy \, Attia A. El-Fergany

Electrical Engineering

This manuscript presents a novel application of the recently developed Puma Optimizer (PO) for identifying the unknown parameters in Mann’s model, which is widely used for characterizing the behavior of Polymer Electrolyte Membrane Fuel Cells (PEMFCs). The proposed PO-based methodology is rigorously evaluated using three test cases. One test case involves experimental I–V measurements under various operating conditions from a commercial PEMFC stack, the Horizon H-100 (100 W), which was assembled and tested in the laboratory. The other two cases are established benchmark PEMFC systems, the Ballard Mark V 5 kW and BCS 500 W units. Comprehensive statistical analyses over …

An Integrated Literature Review Examining Nurse Burnout Interventions, Wislande Joseph

DNP Qualifying Manuscripts

Nurse burnout has detrimental consequences for patients, nurses, and organizations and can negatively impact patient outcomes, nurse quality of life, and organizational costs. This integrated literature review aimed to examine interventions for nurse burnout in order to identify what characterizes effective interventions, whether evidence supports implementing such interventions, and how the most commonly-implemented intervention type (mindfulness-based) in particular impacts signs and symptoms of nurse burnout. A two-part search was conducted of CINAHL, PubMed, Google Scholar, and APA PsychInfo. Part one investigated burnout interventions broadly using the primary search terms nurse burnout and interventions; part two focused specifically on mindfulness-based interventions …

Uncovering The Hidden High School Experiences Of Asian American Young Adults: A Mixed Methods Approach, Julia Shin

Educational Specialist, 2020-current

Most research regarding Asian American adolescents’ high school experiences have been quantitative in nature, leaving out the nuances of their lived experiences. While quantitative data is important to gather measurable, objective data from a larger sample of people, qualitative data is also important to add depth and humanness to participant responses. Thirty-two Asian American young adults participated in a mixed methods study that consisted of a survey and optional focus group, aiming to explore the impact of the internalization of the model minority stereotype (MMS), ethnic identity, and representation of racially and ethnically minoritized teachers on their high school experiences. …

Considering Climate Contexts: Examining Promotive And Punitive School Characteristics Among Diverse High School Students, Ashley Bazin, Maryse Richards, Akila Raoul, Allison Lloyd, Elizabeth Rovegno, Yael Granot

Psychology: Faculty Publications

Schools are a critical developmental context for adolescents that can, depending on certain characteristics, do a better or worse job at promoting student resilience and well- being. In working to meet student needs and respond to student behaviors, schools can exhibit more punitive characteristics, like exclusionary discipline practices, or more promotive characteristics, including restorative practices and marshaling of mental health resources. While punitive factors have been associated with more negative outcomes, especially for marginalized students, and promotive factors have been associated with more positive outcomes for students, these factors have rarely been considered together. We conducted an online survey of …

Testing An In-Person Segmentation Approach To Enhance Conservation Partnerships Between Agencies And Private Landowners, Jared Messick, Christopher Serenari Dr., Jenn L. Idema, Kristy L. Daniel

Journal of Extension

Creating partnerships with private landowners will require agencies to identify and remove barriers to solidarity through targeted approaches to social interactions. This study provides a heuristic to segment landowners according to the decision-making the level of shared responsibility they associate with conservation outcomes on private lands. I segmented landowners at Texas Parks and Wildlife Department workshops and conducted interviews with participants to better understand the outcomes of the segmentation event. The results of the case study revealed that the segmentation heuristic effectively distinguishes between landowner types and that value alignment with landowners can supplement perceptions of interdependence.

The Future Intensification Of Hydrological Extremes And Whiplashes In The Contiguous United States Increase Community Vulnerability, Surendra Maharjan, Wenzhao Li, John D. Bolten, Hesham El-Askary

Mathematics, Physics, and Computer Science Faculty Articles and Research

Hydroclimatic whiplash rapid shifts between drought and flood poses growing risks to U.S. communities. Here, we assess historical extremes and future projections using a normalized streamflow metric: the annual mean flow’s deviation from the 1981–2020 average, expressed as a fraction of that average. This metric is applied to United States Geological Survey records and Localized Constructed Analogs downscaled projections under Representative Concentration Pathways 4.5 and 8.5. Results reveal sharp regional disparities, with drought deficits exceeding 300% of normal flow during multi-year droughts. By linking hydrologic outcomes with the Federal Emergency Management Agency’s National Risk Index, we find that counties facing …

Master Of Social Work Portfolio, Kyla Wright

Graduate Student Portfolios, Professional Papers, and Capstone Projects

Identifying all learned ten competencies of social work incorporated into educational settings. Utilizing theoretical practices and an integrated, justified intervention for mental health success.

Master Of Social Work Professional Portfolio, Allison H. Deaver

Graduate Student Portfolios, Professional Papers, and Capstone Projects

This MSW Portfolio encapsulates my learning journey throughout my MSW program, and includes selected projects which demonstrate critical steps in this journey.

Msw Portfolio, Keri Tallis

Graduate Student Portfolios, Professional Papers, and Capstone Projects

No abstract provided.

A Qualitative Exploration Of Sibling Relationships Impacted By Autism: “We’Ll Be Brothers Forever”, Julia M. Linger

Dissertations, 2020-current

The current study used a desire-based research framework to explore the lived experiences of siblinghood in families in which one child is autistic and one child is neurotypical. Their experiences were investigated through semi-structured interviews with eight children (four sibling pairs) between the ages of 11 and 18. Interpretative phenomenological analysis (IPA) was used to analyze and interpret the data. Seven shared experiential themes were constructed that helped describe the experiences of siblinghood for the participants: 1) Siblinghood includes both enjoyment and annoyance, 2) Shared activities and quality time facilitate sibling connectedness, 3) Siblings celebrate differences and use their different …

The Influence Of Artists And Artworks On Identity Development: The Student Perspective, Celeste M. Boseman

Masters Theses, 2020-current

This study investigates the ways in which the artists and artworks depicted throughout their K-12 art education influence students’ personal sociocultural identity development. By utilizing a self-reporting survey and individual interviews, this study explores the perspectives of current university students; their exposure to diversity in their K-12 art education; and the curricular perspectives that influence their identity. The artists and the artwork that art educators show in the classroom are only one aspect of what makes up a student’s art curriculum; this research project demonstrates the impact those artists can have on students’ identity development. The results of this study …

The Silent Epidemic: Equipment Maintenance Failures And Patient Outcomes In Ghana's Healthcare System, Ramseyer Adekorang Asamoah, Celene Dzreke, Evans Dzreke, David Kanzin

Health & Biomedical Sciences Faculty Publications

Broken tools indicate a broken system. This new study reveals how medical equipment failures destroy Ghana's public hospitals, turning life-saving technologies into silent murderers that disproportionately affect rural areas. Moving beyond technical diagnostics, we study the cascading systemic failures, chronic underfunding, critical staff shortages, and fragmented supply chains that leave 40% of vital equipment, such as ventilators, MRI scanners, and dialysis machines, inoperable at any given time. We quantify the devastating human toll through rigorous mixed-methods analysis of equipment downtime records across ten regional hospitals (2018-2023) and profound narratives from 50 frontline stakeholders, doctors forced to improvise without working incubators, …

Receiver Function Imaging Of The Mantle Transition Zone Beneath The East Sayan Mountains And Adjacent Area In Central Asia: Implications For Lithospheric Drip And Intraplate Cenozoic Volcanism, Yangyang Liao, Kelly H. Liu, Stephen S. Gao

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

To provide constraints on the formation mechanisms of intracontinental volcanisms and intriguing lithospheric thickness variations in the East Sayan Mountains and surrounding areas, we stack P-to-s receiver functions to image the 410-km and 660-km discontinuities. Mantle transition zone (MTZ) thickening observed in a continuous area is attributable to ancient slab remnants, and Cenozoic volcanisms in the peripheral area can be explained by slab dehydration. The thinning of the MTZ in the Tuva-Mongolian Massif can be explained by mantle upwelling branches induced by slab subduction. Our results reveal an approximately circular area in the MTZ that is significantly thicker than usual, …