Digital Commons Network^™

Assessment Of Inquiry-Based Learning Practice In Response To The Science Achievement Gap Of City Schools, Lexus K. Baxendale,

Masters Theses

Over the past few decades, many city schools have seen a decline in graduation rates, attendance, rates, and standardized test scores. Once high achieving schools, are now struggling to get students to attend school let alone graduate. One specific area that has experienced this decline is K-12 science education. As a secondary science educator working within a city district, I have witnessed firsthand the substantial gaps in knowledge that many students exhibit even as they transition into high school. These gaps are often profound and can be traced back to the early stages of their education, where foundational scientific concepts …

A Design Thinking Mixed Method Study On Social-Emotional Learning Lessons For Early Elementary Learners, Emily Woodall

Dissertations

Social emotional learning (SEL) had largely been absent from early elementary curriculum, despite research which indicated the need for specialized SEL curricula for unique groups, especially students identified as gifted and talented, exceptional students living in geographically isolated areas, and unidentified gifted students from historically disadvantaged minority groups, including African American, Latinx, and Native American. The researcher proposed an SEL pilot in early elementary grades, including pre-kindergarten and kindergarten, may create a scaffolded approach to SEL curricula throughout the students’ educational experiences with a focus on scaffolding to specific subgroups, such as gifted and talented students with unique SEL needs. …

Reinforcement Learning Assisted Communication Resources Optimization In Advanced Air Mobility., Ruixuan Han

Electronic Theses and Dissertations

Advanced air mobility (AAM), which envisages a safe and efficient aviation transportation system, has drawn significant attention to support the increasing mobility demand in metropolitan areas. Communication services for AAM aerial vehicles (AVs) are crucial for ensuring flight safety. This dissertation explores three research topics on communication resource allocation problems in AAM applications. The first topic, addressed in Chapter II, investigates the joint velocity selection and spectrum allocation problem for AAM applications to enhance spectrum utilization efficiency (SUE). In the AAM scenario, multiple AVs travel along predefined paths for passenger and cargo deliveries. Given that AAM aims to provide fast …

Interpretation Models For Prostate Lesion: Detecting, Explaining, And Understanding., Mehmet Akif Gulum

Electronic Theses and Dissertations

Prostate cancer is a major public health concern, affecting millions of men worldwide. While early detection and treatment of prostate cancer is critical for improving patient outcomes, the detection of prostate lesions is even more important for timely intervention and management of the disease. Prostate lesions are abnormal growths or lumps within the prostate gland, which may or may not be cancerous. The timely detection and accurate diagnosis of prostate lesions is crucial for effective treatment and management of the disease. In recent years, deep learning models have shown promise in accurately detecting and characterizing prostate lesions using advanced imaging …

Deep Reinforcement Learning-Based Dynamic Routing And Spectrum Access In Aeronautical Networks., Zhe Wang

Electronic Theses and Dissertations

As the airspace is experiencing an increasing number of aircraft, spectrum sharing among Air Vehicles (AVs) and Terrestrial Users (TUs) emerges as a compelling solution to improve spectrum utilization efficiency. I investigated three types of aeronautical communication including the single-hop Air-Air Communication Network (AACN), the multi-hop Air-Air Ad-hoc Network (AAAN), and the Aerial and Terrestrial Hybrid Network (ATHN). I assume a spectrum-limited scenario through all communication networks. Thus, the number of communication pairs is greater than that of the available channels, resulting in co-channel interference due to the reuse of the same channel among communication links. In a single-hop AACN, …

Molecular Mechanisms Of Exercise-Stimulated Resolution Of Inflammation And Its Dietary Dependence., Ernesto H. Pena Calderin

Electronic Theses and Dissertations

Diet-induced obesity and adipose tissue (AT) inflammation that ensues sets the stage for systemic metabolic inflammation, disrupted insulin signaling, and eventual type 2 diabetes (T2D) development. At the center of this pathology lies a disruption in endogenous inflammation resolution pathways characterized by an imbalance in lipid mediator production (greater abundance of pro-inflammatory to pro-resolving lipids). Additionally, obese states are characterized by adrenergic deficiency, especially in response to physical activity. Inflammatory processes have been experimentally mitigated by either the pharmacological inhibition of pro-inflammatory signals (i.e., Leukotriene B₄ (LTB₄) and its receptor BLT1, which establishes a potent chemotactic stimulus …

Effects Of A Protection Zone In A Reaction-Diffusion Model With Shifting Bounded Habitat And Allee Effect., Davis Henderson

Electronic Theses and Dissertations

We consider a reaction-diffusion equation that models a population in a shifting bounded habitat with a protection zone and the Allee effect. We assume that the population growth function exhibits the strong Allee effect and has a positive integral within the protection zone (indicating population persistence) and a negative integral in the surrounding patches (indicating population decay). We prove that the existence of steady-state solutions to this system depends on the length of the protection zone. It is demonstrated that there exists some value H* such that, for a protection zone of size H*, there exists a solution and, for …

Adaptive Robot Collaboration Using Robotic Skin And Motion Similarity., Jordan Dowdy

Electronic Theses and Dissertations

An essential part of robotics research is human-robot collaboration, which enables the use of current and new robots in everyday life and the workforce. This research applies to both parts of human-robot collaboration: physical human-robot interaction (pHRI), as well as non-physical human-robot interaction. The physical interaction uses tactile sensors and a Neuroadaptive Controller (NAC) to allow for the guidance of a robotic arm and its end-effector. The non-physical interaction uses a novel motion similarity metric, the Cartesian Segment Online Dynamic Time-Warping (SODTW), to allow a robot to better adapt to the speed of the user performing the motion during imitation …

A Study Of Post-Quantum Cryptographic Schemes., Max Cartor

Electronic Theses and Dissertations

As the world edges closer to widespread quantum computing, cryptosystems need to be able to withstand attacks from new adversaries. Classical public key cryptosystems that currently protect the digital world will no longer be secure in the post-quantum setting. Two of the leading options for public key post-quantum cryptography are multivariate and lattice-based cryptography. One goal of this work is to introduce and classify the security of the multivariate cryptosystems from the C∗ and Oil and Vinegar families, and attacks that have proven successful against them. We begin by outlining the growth of multivariate cryptography from C∗ and its linage. …

Transformation Of Organic To Inorganic Nitrogen In Nh4 +-Illite-Bearing And Ga-Al-Ree-Rich Bituminous Coals: Evidence From Nitrogen Isotopes And Functionalities, Qian Wang, Shifeng Dai, Victor P. Nechaev, David French, Ian Graham, Lei Zhao, Shaowei Zhang, Yang Liang, James C. Hower

Earth and Environmental Sciences Faculty Publications

Nitrogen is one of the most important elements and mainly occurs as organic forms in coal, and in a few cases, in an inorganic form. Organic nitrogen in coal is mainly derived from the proteins of plants and micro-organisms but sources of inorganic nitrogen remain controversial. One hypothesis for the source of inorganic nitrogen is the organic matter of coal, but this lacks strong evidence. In the Daqingshan Coalfield of Inner Mongolia, northern China, an igneous intrusion in the east of the coalfield led to a coal rank increase from the Hailiushu through the Datanhao mines to the Adaohai mine …

Fine-Scale Mangrove Species Classification Based On Uav Multispectral And Hyperspectral Remote Sensing Using Machine Learning, Yuanzheng Yang, Zhouju Meng, Jiaxing Zu, Wenhua Cai, Jiali Wang, Hongxin Su, Jian Yang

Earth and Environmental Sciences Faculty Publications

Mangrove ecosystems play an irreplaceable role in coastal environments by providing essential ecosystem services. Diverse mangrove species have different functions due to their morpho- logical and physiological characteristics. A precise spatial distribution map of mangrove species is therefore crucial for biodiversity maintenance and environmental conservation of coastal ecosystems. Traditional satellite data are limited in fine-scale mangrove species classification due to low spatial resolution and less spectral information. This study employed unmanned aerial vehicle (UAV) technology to acquire high-resolution multispectral and hyperspectral mangrove forest imagery in Guangxi, China. We leveraged advanced algorithms, including RFE-RF for feature selection and machine learning models …

When Hedge Funds Move In: Socioeconomic Consequences Of Single-Family Rentals, Hannah Misurati

All Theses

In this thesis I explore the effect of increased investment in the single-family rental sector on inequality and housing affordability. I measure the effect of the single family rental (SFR) share on Gini indices and median rental prices across the largest U.S. cities. I construct three non lagged and three lagged models for each of the two dependent variables. In my analysis of the relationship between SFR shares and inequality, I do not find a significant relationship after accounting for potential reverse causality. However, the relationship between SFR shares and rent prices is shown to be negative and significant once …

Artificial Intelligence, Work, And The Future Of Education, Daniel Brown

Library Presentations

No abstract provided.

Land-Use Change As A Major Driver For Mid-20th-Century Flood Intensity Reduction In The Southeastern Us, Zhixiong Shen, Nicholas Conway, Shaowu Bao, Samuel Muñoz, Andreas Lang

Marine Science

Land-use changes affect hydrologic processes, but their impact on flooding remains obscure amid increasingly heavy precipitation. Instrumental records are short relative to land-use change history and inadequate for flood attribution studies. Here we integrate a high-resolution paleodischarge record spanning the past ∼200 years from the largest basin in the Southeastern United States with instrumental data and hydrological modeling. We find that the 100 yr flood magnitude for large regional rivers exhibits 50%–75% reductions in the mid-20th century. We attribute at least 50% of the reductions to a regional shift from widespread agricultural land to conservation and reforestation and the rest …

Coal Creek Carbon Capture, University Of North Dakota. Energy And Environmental Research Center

EERC Brochures and Fact Sheets

Fact sheet about Coal Creek Carbon Capture project, a CarbonSAFE initiative. The Coal Creek Carbon Capture project is investigating the feasibility of developing safe, permanent geologic storage of CO₂ captured from Coal Creek Station.

Speech-Language Pathologists’ Perceptions When Supporting Students With Dyslexia, Heather Campbell-Meyer Tellier

Dissertations

This study explored the rationale and significance of integrating speech-language pathologists (SLPs) into the assessment and remediation of dyslexia, traditionally the domain of general and special education teachers. Drawing on their unique qualifications in languagerelated areas, such as phonology, syntax, and semantics, SLPs have emerged as valuable assets in supporting students with dyslexia. American Speech-Language and Hearing Association (ASHA) has recognized the value of SLPs working with students with dyslexia and has set specific guidelines for working with them. Despite these guidelines, recent data have indicated a gap between policy and practice, with only a fraction of SLPs (36%) actively …

2024 Annual Report Of The Nominating Committee, University Of Northern Iowa. Faculty Senate.

Documents - Faculty Senate

University Nominating Committee report including committee memberships, produced by the Faculty Senate of the University of Northern Iowa.

Iowa Waste Reduction Center Newsletter, August 2024 [Special Edition], University Of Northern Iowa. Iowa Waste Reduction Center.

Iowa Waste Reduction Center Newsletter

Contents:

--- Fraud Alert

Language Ideologies And Use Among Latine Children In A Dual Language Program In Southern California: A Qualitative Approach, Xochitl Morales

Education (PhD) Dissertations

Through a critical race and LatCrit framework, this research examined the language ideologies of young Latine children enrolled in Spanish dual-language programs. Specifically, I examined how and why the children chose to speak English and Spanish at home and school. A qualitative approach was used to understand the participants in their natural environment. The participants were five third-grade students (two males and three females), and their parents, five females and one male, and a the student’s third-grade teacher. The data collected included participant observations at home and at school as well as both formal interviews and informal conversations with students, …

Teaching To The Heart: A Grounded Theory Exploration Of Elementary Educators’ Journey Toward Teaching Mathematics For Social Justice, Breána Victoria-Delgado

Education (PhD) Dissertations

The current sociopolitical context of the United States has created a divide among the nation which has transpired into Kindergarten-12th grade public school settings. Throughout the United States school boards of education have banned books and Critical Race Theory while attacking social justice teaching pedagogies. Presently, there is growing empirical research on teaching mathematics for social justice in public elementary schools. This study explored the ways in which public elementary educators experience teaching mathematics for social justice in their classrooms across Southern California. Through qualitative research, this study utilized constructivist grounded theory methodology and methods to gain insight of the …

2024 August - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Monthly Reports

No abstract provided.

Perceptions Of The Differing Preparatory Needs Of Teacher Leaders And Educational Leaders, Kimberly Green

Dissertations

This dissertation explores the differing preparatory needs of teacher leaders and educational leaders through a phenomenographic approach, identifying unique and overlapping elements of these two leadership domains. Grounded in Adult Learning Theory, the study emphasizes self-directed learning and practical knowledge for professional development. Thematic findings reveal that Teacher Leadership Preparation Programs are primarily research-based on the practitioner’s perspective, offering insights grounded in classroom experience, while Educational Leadership Preparation Programs focus on developing supervisory skills for school and district leadership roles. This highlights the different focal points in leadership training, with teacher leadership prioritizing mentorship and educational leadership focusing on supervision. …

Changes In Near-Field Perception And Reaching Behavior In Virtual Environments Over Time, Kristopher C. Kohm

All Dissertations

Near-field perception and reaching capabilities are fundamental for most interactions in immersive virtual environments (IVEs). To perform actions in IVEs accurately and efficiently, virtual reality (VR) users need to be able to adapt to changes in their perception. Some of these perceptual differences may be inherent to virtual environments, such as the difference in depth perception between the virtual and non-virtual worlds. Others may be deliberate alterations to the user's action capabilities or to their surroundings to make interactions easier. Both the alterations and the user's ability to adjust to them may change over time as they gain experience in …

Two New Baseball Performance Statistics, Charles H. Smith

Faculty/Staff Personal Papers

Ever since I was a small child I have been interested in both statistics and baseball, so I guess it was inevitable I would eventually find a way to put the two together. In this short note I'd like to suggest a pair of measures that I feel might be useful in interpreting quality of play: one focusing more on hitting, the other on pitching. Let's start with the one concerning hitting.

Learning Abstract Chemistry Concepts With Virtual Reality: An Experimental Study Using A Vr Chemistry Lab And Molecule Simulation, Elliot Hu-Au

School of Computing Faculty Scholarship and Creative Works

In this 2 × 2 between-subject experimental study, a virtual reality (VR) laboratory simulation is paired with a VR molecular world intervention to teach chemistry concepts. The independent variables are the implementation timing of the molecular world intervention (Pre-lab vs. Integrated) and the level of embodiment (Traditional vs. VR). Eighty students (N = 80), ages 11–18 years old, from a community center in New York City participated, completing a pretest, a laboratory simulation, a molecular intervention, and a post-test. The pre- and post-test measures included multiple-choice, free-response, and drawing questions. A key finding was that integrating the intervention within the …

Graduate List - August 2024, University Of Nebraska At Omaha

Commencement Lists

No abstract provided.

Contemplating Existence: Ai And The Meaning Of Life, Emily Barnes, James Hutson

Faculty Scholarship

This article explores the intersection of artificial intelligence (AI) with existential philosophy, examining how AI technologies influence human conceptualizations of purpose and meaning. Despite rapid advancements in AI, the domain's implications for existential thought remain underexplored. By integrating interdisciplinary perspectives from psychology, philosophy, and AI ethics, this study elucidates how AI can shape, challenge, or enhance our understanding of life's purpose. It investigates theoretical frameworks and practical implementations of AI engaging in existential questions, analyzing both the capabilities and limitations of AI systems such as ChatGPT in simulating human existential thought. The ethical implications of AI's role in existential inquiries …

School Culture And Teacher Retention, Verley Lanns-Isaac

All-Inclusive List of Electronic Theses and Dissertations

The purpose of this qualitative, single case study was to gain insight into the culture construct in relation to whether it contributes to teachers’ decisions to either leave or stay in a school for the long haul. The research questions of the study were the following: What is the influence of school culture on teacher retention? What aspects of school cultures inform teachers’ decisions to stay or leave the school or teaching profession? What measures instituted by school leaders help to sway teachers’ decisions to either stay or leave the school or teaching profession? Why do some school cultures tend …

A Mixed Methods Comparative Analysis Of Missouri Public Charter Schools’ Performance Vs Traditional Public Schools Of Similar Demographics And The Correlation Between Their Performance And Funding, Dearon M. Mckinney

Dissertations

This dissertation presents a comprehensive investigation into the performance of public charter schools in Missouri compared to traditional public schools with similar demographic profiles. The study employs a mixed-methods research design, incorporating both quantitative and qualitative approaches to gather and analyze data. The primary objectives include assessing academic outcomes, examining demographic characteristics, and exploring the relationship between school performance and funding allocation.

The quantitative phase involves a large-scale statistical analysis of academic achievement data, such as standardized test scores and other relevant metrics obtained from both charter and traditional public schools. A careful matching process ensures that demographic factors such …

Pinn-Chk: Physics-Informed Neural Network For High-Fidelity Prediction Of Early-Age Cement Hydration Kinetics, Md Asif Rahman, Tianjie Zhang, Yang Lu

Civil Engineering Faculty Publications and Presentations

Cement hydration kinetics, characterized by heat generation in early-age concrete, poses a modeling challenge. This work proposes a physics-informed neural network (PINN) named PINN-CHK designed for cement hydration kinetics, to predict early-age temperature rises in cement paste. PINN-CHK leverages data-driven solutions to craft a high-fidelity prediction model, encompassing material properties and maturity functions in cement hydration. Trained on heated cement paste data, it simultaneously fits experimental results and underlying physics, yielding a mesh-free simulation. Incorporating governing partial differential equations (PDEs), and initial and boundary conditions into its loss function, PINN-CHK architecture undergoes rigorous benchmark testing, demonstrating unparalleled predictive accuracy compared …