Digital Commons Network^™

Fabrication Of Dye-Sensitized Solar Cell Using Cuo Nanoparticles As A Photo Anode, Ahmed Mahdi Rheima, Athra G. Sager, Mahdi A. Mohammed, Ali Jafer Mahdi

Baghdad Science Journal

Nanoparticles of copper oxide (CuO) are synthesized using a photolysis process. x -ray diffraction (XRD]) is utilized to investigate CuO nanoparticle's crystal structure, and transmission electron microscopy (TEM) is employed to analyze the morphology and the average nanoparticle diameters. Results indicated that the CuO nanoparticles have a monoclinic shape with a mean size of 14 nm. The UV -- Visible measurement is shown that the bandgap of CuO nanoparticles is 1.61 eV. The CuO nanoparticles were applied in a photoanode section to fabricate photo organic sensitizer solar cells. The 4,4'-((3,3'-dimethyl-[1,1'-biphenyl]-4,4'-diyl)bis(azaneylylidene))bis (methaneylylidene)) bis (2-methoxy-phenol) was synthesized via the Microwave irradiation method …

A Chat Room In A City Of Missouri's Public Safety Answering Point, Rochele Wynee' Young

Walden Dissertations and Doctoral Studies

Despite new and emerging communications technologies to improve access to 911 emergency services for people with speech, hearing, and cognitive disabilities, there continue to be access barriers for those who may require silent communications due to the nature of the emergency. Chat rooms in 911 communications present a promising solution to this challenge. However, the current literature has inadequately examined the use of chat rooms in 911 communications, mainly due to the nascent nature of this technology. This study aimed to fill that gap by providing valuable insights to enhance access to 911 emergency services for individuals who may require …

Identification Of Functional Non-Coding Variants Associated With Orofacial Cleft, Priyanka Kumari, Ryan Z Friedman, Michael A White, Barak A Cohen, Et Al.

2020-Current year OA Pubs

Oral facial cleft (OFC) comprises cleft lip with or without cleft palate (CL/P) or cleft palate only. Genome wide association studies (GWAS) of isolated OFC have identified common single nucleotide polymorphisms (SNPs) in many genomic loci where the presumed effector gene (for example, IRF6 in the 1q32 locus) is expressed in embryonic oral epithelium. To identify candidates for functional SNPs at eight such loci we conduct a massively parallel reporter assay in a fetal oral epithelial cell line, revealing SNPs with allele-specific effects on enhancer activity. We filter these SNPs against chromatin-mark evidence of enhancers and test a subset in …

Retrospective Study And Predictive Modeling Of The Impact Of Social Determinants Of Health On Sepsis Outcomes, Mwembezi Aaron Nyelele

LSU Doctoral Dissertations

Sepsis, a life-threatening organ failure caused by the body’s abnormal and harmful response to an infection, remains a major global and national health challenge. In the United States, it contributes significantly to hospital mortality and imposes a substantial economic burden, with billions spent annually on treatment. Early diagnosis is difficult due to the nonspecific nature of sepsis symptoms, often leading to delays in care and poorer outcomes. As the incidence and severity of sepsis rise, identifying factors that influence outcomes is increasingly critical. Emerging research has shown that Social Determinants of Health (SDOH), including economic stability, education, neighborhood and built …

Quasistatic Peridynamics, Existence Of Unique Solution In The Presence Of Damage, Nuwanthi N. Samarawickrama

LSU Doctoral Dissertations

A mathematical model for damage propagation based on nonlocal potentials is developed within the framework of peridynamics. This model is applied to simulate damage evolution in cyclically loaded structures. By neglecting inertial effects, a well-posed quasistatic formulation for cyclic loading is obtained.\\ The resulting equation is expressed as a nonlocal and nonlinear integral operator that couples damage evolution to the deformation field.\\ This coupling occurs through the product of a damage factor and the derivative of a force potential. The damage factor ranges between zero and one, where one represents undamaged material and zero indicates complete damage.\\ It serves to …

Digital Forensics And Ai: Artifact Analysis And Using Ai In The Forensics Domain, Clinton Joel Walker

LSU Doctoral Dissertations

Digital Forensics (DF) is a field of forensic science focusing on the acquisition, authentication, and analysis of digital evidence while maintaining integrity of that data. DF analysts use forensic tools to parse large volumes of data for investigations and depend on them for identification of pertinent digital evidence in vast amounts of data. Keeping up with innovations and ever-expanding data volumes is a constant challenge for these investigators. The prevalence of Artificial Intelligence (AI) in everyday computing is rapidly expanding, with the use of Machine Learning (ML) and Large Language Models (LLM)s becoming increasingly commonplace. Innovations in technology bring new …

Towards Leveraging Social Media Data For Fostering Collaborations Among Non-Profits, Monazil Chowdhury

LSU Doctoral Dissertations

Nonprofit organizations serve a crucial role in tackling a wide range of significant social, environmental, and economic issues. But it is often hard to get a clear picture of their work because their information is spread out and it is difficult to see how they are collaborating. To address this issue we developed a web-based tool to collect scattered data—from a variety of sources, such as the IRS, social media, and the Census, into one easy-to-use resource. The tool begins by taking IRS records and geocoding each nonprofit’s physical address With its coordinates. It then retrieves census tract information from …

Specialty Grand Challenge: Existing Issues And Emerging Frontiers In Renal Endocrinology, A. T. M. Emdadul Haque, Mohammed S. Razzaque

School of Medicine Publications

We are currently in an exciting time to advance the field of renal endocrinology. There has never been a more favorable time to study the molecular and cellular mechanisms underlying renal hormone functions in physiology, pharmacology, and pathophysiology. The availability of advanced research tools provides unique opportunities to dissect the complex regulatory roles of renal hormones. The kidneys are vital organs in the human body; each one is composed of approximately one million functional nephrons. Understanding the precise roles and regulation of kidney-derived hormones and hormones that exert endocrine effects on the kidneys will help in preventing or delaying various …

Enhancing Winter Climate Simulations Of The Great Lakes: Insights From A New Coupled Lake–Ice–Atmosphere (Cliav1) System On The Importance Of Integrating 3d Hydrodynamics With A Regional Climate Model, Pengfei Xue, Chenfu Huang, Yafang Zhong, Michael Notaro, Miraj Kayastha, Xing Zhou, Chuyan Zhao, Christa Peters-Lidard, Carlos Cruz, Eric Kemp

Michigan Tech Publications

The Laurentian Great Lakes significantly influence the climate of the Midwest and Northeast United States due to their vast thermal inertia, moisture source potential, and complex heat and moisture flux dynamics. This study presents a newly developed coupled lake–ice–atmosphere (CLIAv1) modeling system for the Great Lakes by coupling the National Aeronautics and Space Administration (NASA) Unified Weather Research and Forecasting (NU-WRF) regional climate model (RCM) with the three-dimensional (3D) Finite Volume Community Ocean Model (FVCOM) and investigates the impact of coupled dynamics on simulations of the Great Lakes’ winter climate. By integrating 3D lake hydrodynamics, CLIAv1 demonstrates superior performance in …

Mental Health Services Utilization And Health Insurance Status Among Firefighters, Yvette Evans

Walden Dissertations and Doctoral Studies

Firefighting exposes individuals to significant psychological dangers, leading to mental health issues like anxiety, depression, and posttraumatic stress disorder. This study investigated the underuse of mental health services among firefighters, focusing on the relationship between health insurance status and service utilization while considering age, gender, race, and ethnicity. Data from the National Health Interview Survey within the Integrated Public Use Microdata Series were analyzed using a quantitative approach. The study employed logistic regression to examine the likelihood of mental health service utilization based on health insurance status, adjusting for demographic factors. The sample included 1,526 firefighters, predominantly male (78.9%) and …

Digital Twins For Circular Economy Optimization: A Framework For Sustainable Engineering Systems, Shubham Gupta

Harrisburg University Other Works

This paper introduces sustainable engineering systems built using digital twin technology and circular economy principles. This research presents a framework for monitoring, modeling, and making decisions in real timusing virtual replicas of physical products, processes, and systems in product lifecycles. A digital twin was used to show that through a digital twin, waste was reduced by 27%, energy consumption was reduced by 32%, and the resource recovery rate increased to 45%. The proposed approach under the framework employs various machine learning algorithms, IoT sensor networks, and advanced data analytics to support closed-loop flows of materials. The results show how digital …

Spase: Spatially Resolved Pathology Scores Using Optimal Transport On Spatial Transcriptomics Data, James F Martin, M Saifur Rahman, Md Abul Hassan Samee

Faculty, Staff and Students Publications

Pathological events often impact tissue regions in a spatial variable manner, making it challenging to identify therapeutic targets. Spatial transcriptomics (ST) is a powerful technology to map spatially variable molecular mechanisms, yet suitable analytical methods have been lacking. We introduce SPaSE (Spatially-resolved Pathology ScorE), an optimal transport-based algorithm to compare ST data from diseased and control tissues. SPaSE computes a “pathology score” for each spot in the diseased sample, quantifying the pathological impact at that spot. In post-MI (myocardial infarction) mouse hearts, these scores delineated zones that matched independent expert annotations. Modeling pathology scores from gene expression revealed signatures predictive …

Mathematical Modelling Of Green Energy Storage Capacities With Different Demand Scenarios, Muhammad Anas Maqbool, Pablo Borja Rosales, Md Jahir Rizvi, Yeaw Chu Lee

School of Engineering, Computing and Mathematics

The climate crisis has necessitated immediate and extensive research into sustainable, reliable, and cost-effective energy sources. The global energy shift has accelerated the integration of renewables with various industries and energy storage systems to address the challenges posed by the intermittent nature of renewable energy sources. The UK's hydrogen strategy and zero-emission shipping mission demonstrate promising progress, including the development of green hydrogen and green ammonia production and storage. However, renewable-hydrogen or ammonia storage systems present challenges, including determining effective storage capacity and meeting extensive energy requirements. The authors of this study have previously explored the prospects and feasibility of …

The People's Rivers: Early Environmental Regulation And The Oregon State Sanitary Authority, Avery Morgan Fischer

Dissertations and Theses

The environmental movement in Oregon can trace its origins to the turn of the twentieth century, where citizen activism and initiative led to the creation of an early environmental regulatory agency, the Oregon State Sanitary Authority. This creation established that the State of Oregon had a duty to preserve, not just the navigability or usability of rivers and waterways, but the quality and purity of its water. The Oregon State Sanitary Authority played an active role in maintaining and protecting the environment as a mandate of the people, and throughout its thirty-year existence battling industrial polluters, reluctant municipalities, and disinterested …

Aeroponic System Optimization For Butterhead Lettuce Growth And Future Sustainability Using Flow Blurring Atomization: An Overview, Taylor J. Johnson

Beyond: Undergraduate Research Journal

The global population has grown by 6 billion people over the last century and is trending toward 9.7 billion people by the year 2050. Agriculture accounts for 70% of global fresh water usage. Technology must be developed to accommodate the increase of food production demanded by the growing global population and the subsequent increase in water usage. Aeroponic technology is a water-efficient vertical farming technology that can reduce water usage by 90% by suspending plant roots in air within a controlled chamber and supplying atomized droplets of a water-nutrient solution directly to the roots.

This study simultaneously tests six droplet …

Book Review: The Architecture Of The Playing Field, Eddie G. Walker Ii

Global Sport Business Journal

Athletic fields, facilities, golf courses, stadiums, and arenas are at the heart of the sport management industry. Physical activity has been “an essential component” of mankind’s life on Earth since the beginning of time (Elgammal & Abdel-Razek, 2022; p. 26). Throughout history, the methods of hosting athletic events have undergone significant evolution. Dr. Richard Cleary provides a concise yet thorough resource on how the structure of these spaces influences the experience for both participants and spectators. The Architecture of the Playing Field: Shaping Space in Sport comprises four chapters and an Epilogue that utilize architectural design and sociocultural theories to …

Flow-Nalytics: A Monitoring, Evaluation And Learning Capacity Assessment Of A Menstrual Health Education Organization, Chanel Jimenez

Capstone Collection

This capstone project explored the monitoring, evaluation and learning (MEL) capacities of an organization in Colombia that promotes comprehensive menstrual education. The current contexts surrounding menstrual health and hygiene management (MHHM) globally and in Colombia, the relevant policy environment and the MEL context of MHHM were featured prominently in the literature review. Concepts such as feminist pedagogy theory and the term “empowerment” were also explored.

The project methodology consisted of a desk review, facilitated discussions and observed workshops with the organization founder, which used the pseudonym, Tenara. In collaboration with the organization’s founder, the author identified various findings, challenges and …

Let Us Break Bread Together: A Historical Analysis Of African American Chefs’ Influence On American Gastronomy, Danielle S. King

Capstone Collection

This Capstone project examines the historical impact of African American chefs on American gastronomy, highlighting their substantial contributions to the nation's culinary heritage from 1619 to 2024. By employing Jessica B. Harris's book High on the Hog as a foundation, the research identifies a critical gap in existing study abroad programs: the Black diaspora within the United States. The proposed four-week educational program aims to immerse participants in African American culinary heritage across four culturally rich cities: Charleston, South Carolina; New Orleans, Louisiana; Chicago, Illinois, and Oakland, California. With a community cultural wealth framework, the program integrates historical research, hands-on …

Combat Motivation And Swift Trust In Canada’S Battle Of Hong Kong, 1941, Robert C. Engen, Maxwell Putnam

Canadian Military History

Abstract: In December 1941, the British Crown Colony of Hong Kong was the site of a doomed last stand, when the Imperial Japanese Army assaulted the British enclave near-simultaneously with the strike on Pearl Harbor. Among Hong Kong’s multinational defenders were two battalions of Canadian infantry, designated “C Force.” They held out for a significant period and inflicted heavy casualties upon the Japanese, despite the fact that the Canadians were under-trained, under-equipped and fighting a battle that could not be won. This article is the first major study of combat motivation in the Battle of Hong Kong, taking the Canadian …

“Border Line Pilots”: Rcaf Aircrew, Crash Investigations And No. 22 Otu, Wes Cross

Canadian Military History

Abstract : In 1941, RAF Bomber Command Operational Training Units (OTU) in the United Kingdom were created to produce crews for the bomber offensive from graduates of the British Commonwealth Air Training Plan. Of the 4,000 RCAF deaths attributed to non-operational accidents, 1,498 occurred in this OTU phase. A study of No. 22 OTU accident reports, where the largest number of RCAF training fatalities occurred, provides insight into the stated official causes and underlying issues of the high accident rate. Of more recent interest is how one No. 22 OTU 1944 aircraft crash site decades later became a center of …

A Hybrid Ai-Powered Voice-Enabled Medical Practice Assistant With Dynamic Triage Routing And Multi-Modal Patient Interaction, Patrick Proctor

Defensive Publications Series

We present a novel implementation of a voice-enabled medical practice virtual assistant that combines real-time speech processing, intelligent medical triage routing, and multi-modal patient interaction capabilities. Our system employs a hybrid AI architecture that dynamically selects between different language models based on query complexity classification, reducing operational costs while maintaining high-quality responses for complex medical inquiries. The system incorporates a deterministic medical triage decision tree based on established nursing protocols, enabling automated routing of urgent cases while maintaining HIPAA compliance. Additionally, we introduce an innovative multi-step interaction pattern for location-aware services, seamlessly transitioning between voice input, location detection, and turn-by-turn …

Review Of Averting The Digital Dark Age: The Future Of Digital Literary Heritage, Rebecca L. Hastings

Journal of Contemporary Archival Studies

In Averting the Digital Dark Age: How Archivists, Librarians, and Technologists Built the Web a Memory, Ian Milligan explores the efforts of technologists and information professionals to develop means of preserving information shared on the World Wide Web. The web lacks a built-in archiving function, raising fears of a “digital dark age,” an unprecedented gap in the historical record as information sharing via the web increases. Milligan tracks the development of web preservation debates and activities from the anxiety and turmoil of the early to mid-1990s to the coming of age of web preservation in the wake of the …

Assessing The Lgbtq+ Beliefs, Behaviors, And Competency Of Nutrition Professionals: A Mixed-Methods Study, Anthony Dissen, Christina Riccardo, Liam Oliver Lair

Journal of Dietetic Education

Lesbian, gay, bisexual, transgender, and queer/questioning (LGBTQ+) individuals often experience disproportionate levels of physical and mental health issues including nutrition-specific issues such as eating disorders, body dysmorphia, and food insecurity related to psychological distress from discrimination and stigmatization. This study sought to understand nutrition professionals’ LGBTQ+ competence, beliefs, and behaviors. Researchers distributed 2 data collection tools to registered dietitian nutritionists (RDNs): the Gay Affirmative Practice Scale (GAP-Scale) and the LGBT Competency Assessment Tool (LGBT-CAT). Data from the GAP-Scale were numerically scored using a 5-point Likert scale, and data from LGBT-CAT were scored on a scale of 0 to 3 points. …

Reviews: The Quickening: Antarctica, Motherhood, And Cultivating Hope In A Warming World, Rachel T. Buxton, Eric J. Woehler

Marine Ornithology

No abstract provided.

Confirmed Record Of Red-Footed Booby Sula Sula From Lakshadweep Sea, Northern Indian Ocean, Chullikad Lalan Vishnulal, Harichandran Prasitha Nisanth, Raveendhiran Ravinesh, Narayanane Saravanane

Marine Ornithology

The Red-footed Booby Sula sula occurs across tropical and subtropical oceans, nesting on islands and coastal areas. It is identified by its distinctive red feet, long wings, and sharp bill. However, confirmed reports are rare. Here we report, with photographs, the presence of a Red-footed Booby from the Union Territory of Lakshadweep, northern Indian Ocean. This record adds to the collective understanding of the species’ presence and distribution in the region.

Status Of Craveri’S Murrelet Synthliboramphus Craveri In The Midriff Islands, Gulf Of California, Mexico, Francisco Jaime Martínez Reyes, Lauren A. Dolinski, Lorayne R. Meltzer, Paulina De L. Camarena Gomez, Noah L. Oas

Marine Ornithology

The Craveri's Murrelet Synthliboramphus craveri is an endangered seabird (family Alcidae) endemic to northwestern Mexico, where it breeds on rocky islands throughout the Gulf of California (GOC). Nesting records are scarce for most of these islands, and much of the available information relies on historical data collected more than 50 years ago. Beginning in 2009 through to 2023, we performed intermittent nest searches on five islands in the Midriff Islands of the GOC. Starting in 2018 on Alcatraz Island and starting in 2022 on San Pedro Mártir Island, we monitored nests to determine average clutch size and hatching success. We …

Nape Coloration Varies With Sex, Not Age, Among Great Shearwaters Ardenna Gravis, Ewan D. Wakefield, Anna R. Robuck, Kevin D. Powers, Robert A. Ronconi, Peter G. Ryan, David N. Wiley

Marine Ornithology

Most petrels (family Procellariidae) exhibit little or no obvious variation in plumage with age or sex, either because plumage performs no sexual function or does so in a way poorly perceptible to humans. This limits the inferences that can be made from visual observations of petrels at sea. However, it has been suggested that nape coloration of Great Shearwaters Ardenna gravis whitens with age. Here we test this supposition using observations of known-age-class individuals. We necropsied birds bycaught around Gough Island, a major breeding colony in the South Atlantic Ocean, and in Massachusetts Bay, a wintering area off the northeastern …

Spatial And Temporal Variation Of Beached Birds In Northern Argentine Patagonia, Victoria Magdalena Pizá, Patricio Javier Pereyra, Juan Pablo Seco Pon

Marine Ornithology

Beached birds on marine coastal beaches, along with other megafauna, are a valuable source of biological information, offering insights into species occurrence and factors that negatively affect their populations. The main objective of this study was to evaluate the spatial and temporal variation, and species composition, of coastal and marine birds found on sandy beaches in the Bahía de San Antonio Protected Natural Area (Río Negro Province, Argentina), and to relate resulting species abundance and richness to oceanographic and environmental variables. A biweekly survey was carried out over two years (2020-2022), during which 672 beached birds were recorded. The overall …

Wire Ingestion By A Red-Billed Tropicbird Phaethon Aethereus Chick On San Pedro Mártir Island, Mexico, Alberto Piña-Ortiz, Vladislav Marcuk, Salvador Gómez-Hernández, José Alfredo Castillo-Guerrero, Petra Quillfeldt

Marine Ornithology

We report the ingestion of wire by a Red-billed Tropicbird Phaethon aethereus chick at San Pedro Mártir Island, Gulf of California, Mexico. A scat sample collected from a four- to five-week-old chick contained a copper wire ~5.0 mm in length. Biologging revealed the previous foraging trips by one of the parents, and we ascertained the diet of birds in this colony through a molecular approach. From these data, we suggest why this individual was fed wire.

Technological Evolution Generates New Answers And New Ways Forward: A Progress Report From The First Decade At The Karlsö Auk Lab, Jonas Hentati-Sundberg, Per-Arvid Berglund, Agnes B. Olin, Aron Hejdström, Henrik Österblom, Astrid A. Carlsen, Quentin Queiros, Olof Olsson

Marine Ornithology

In 2008, we built an artificial nesting construction for Common Murres Uria aalge, the Karlsö Auk Lab, on an island in the Baltic Sea (Hentati-Sundberg et al., 2012). The aim was to create an environment in which the birds could be readily monitored and accessed, and technological equipment easily installed. In this current paper, we report on murre recruitment to the Auk Lab over the first decade, assess the performance of the birds living on the lab compared to natural cliff ledges, and revisit the original research questions. We conclude that the tremendous developments in sensor technology (video surveillance, automated …