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U-Glide Program Fall 2024, Unf Office Of Undergraduate Research, Unf Graduate School

Undergraduate – Graduate Learning, Inquiry, and Distinctive Experimentation (U-GLIDE) Symposium Programs

No abstract provided.

(R2097) Impact Of Inclined Magnetic Field On Two Immiscible Viscous Fluids Flow In A Porous Channel With Variable Permeability: A Finite Difference Technique, Angad Prasad, P. K. Singh

Applications and Applied Mathematics: An International Journal (AAM)

This paper is concerned with the flow of two immiscible, viscous, incompressible, and electrically conducting fluids in a horizontal channel containing a porous material under an inclined magnetic field. The flow is propelled by a consistent pressure gradient. These two fluids have different viscosities in two separate layers of equal width. The fluid in the upper layer has a lower viscosity compared to the fluid in the lower layer. The Permeability of a porous medium is variable with the transverse direction. The Brinkman equation is employed to describe fluid flow within a porous medium. Numerical solutions for velocity and volumetric …

(R2117) Cost Optimization Of Queueing System With Differentiated Vacations And Reneging Of Customers, Poonam Gupta, Rajni Gupta

Applications and Applied Mathematics: An International Journal (AAM)

This manuscript deals with an infinite-capacity queueing system under multiple differentiated working vacations and customers’ impatience. The first vacation is assumed to be a working vacation where the server, instead of being idle, serves the customers at a lower rate. In contrast, the second one is considered a non-working vacation of a different duration. The customers may leave the system at any time due to long delays in service during vacations but, via some convincing mechanisms, they are retained in the system. The operating characteristics of the system are obtained in a steady state. The results obtained are illustrated numerically …

Feasibility Analysis On Bluff Body Wake Detection Via Cost-Effective Sensors And State And Parameter Estimation Techniques, Patrick Michael Close

Master's Theses and Capstones

This thesis investigates the feasibility of using Uncrewed Aerial Vehicles (UAVs) and existing state estimation techniques for detecting aerodynamic wakes around bluff bodies. Aerodynamic wakes are complex, turbulent flow regions created by obstacles. Accurately measuring these wakes is crucial for applications such as optimizing wind energy production, improving aircraft safety, and enhancing atmospheric research. Traditional measurement methods, such as ground-based sensors or piloted aircraft, have significant limitations, including restricted spatial coverage and high operational costs. UAVs, with their versatility and cost-effectiveness, present an alternative approach to measuring wakes in challenging environments.

This research focuses on three state estimation techniques: the …

Timigp: A Computational Framework To Determine The Tumor Immune Microenvironment Associated With Prognosis And Immunotherapy Response, Chenyang Li

Dissertations and Theses (Open Access)

Accumulating evidence has suggested that the tumor immune microenvironment (TIME) drastically impacts cancer patients’ clinical outcomes, including prognosis and immunotherapy response. However, understanding TIME remains challenging due to its complexity and heterogeneity. In this dissertation, we introduce TimiGP (Tumor Immune Microenvironment Illustration based on Gene Pairs), a computational framework designed to address this challenge. Leveraging single-cell RNA-seq (scRNA-seq) and bulk gene expression data alongside clinical information, TimiGP constructs a cell-cell interaction network that elucidates the relationship between immune cell function and relevant clinical outcomes, such as prognosis and treatment response. With immunological insights, these cell-cell interactions also facilitate the development …

The Role Of Wt1 In Müllerian Duct Development, Jace Aloway

Dissertations and Theses (Open Access)

WT1 is a zinc finger transcription factor widely expressed in the urogenital system. Human mutations of WT1 lead to pediatric nephroblastoma as well as frequent differences of sex development (DSDs). Previous studies have suggested that WT1 acts as an activator for Amhr2, a necessary component of typical male differentiation. We used the mouse as a model to investigate the role of WT1 in sex development, where we deleted Wt1 in the Müllerian duct (MD) mesenchyme using a novel conditional null reporter allele, Wt1 flox-RFP. This allele utilizes the Cre-lox system to delete exons 8 and 9 of Wt1 …

When Is It Convenient For Indigenous Women To Influence State Policies?, Alaide Vences Estudillo, Norma Don Juan Pérez, Patricia Torres Sandoval, Fabiola Del Jurado Mendoza

Peace and Conflict Studies

This paper examines the difficulties that a network of Indigenous women in Mexico deal with when they seek peace for their people under a hybrid political structure. This paper discusses some distinctive aspects of the politics that these women engage in, how they conceive their political ideas, and how they use these ideas to structurally transform the colonial relationship that the liberal state maintains toward their people. They devise various strategies to influence state policies and to withstand the discrimination they face whenever they participate in democratic affairs.

Don't Waste Heat! Innovations In Energy Conversion And Conservation From The London Tube, Noah Hamaoui

The Synapse: Intercollegiate science magazine

No abstract provided.

Ai Or Student Writing? Analyzing The Situational And Linguistic Characteristics Of Undergraduate Student Writing And Ai-Generated Assignments, Larissa Goulart, Marine Laísa Matte, Alanna Mendoza, Lee Alvarado, Ingrid Veloso

Department of Linguistics Faculty Scholarship and Creative Works

Since the release of OpenAI's ChatGPT, universities have faced the issue of whether there is still a place for written assignments in higher education. ChatGPT's capacity to mimic various written forms raises questions about the necessity of traditional assessments. Given this background, this study explores to what extent AI-generated assignments can replicate the situational and linguistic features of student-authored assignments. Using a corpus of undergraduate assignments from an English as a Foreign Language (EFL) context, we compare student responses with ChatGPT's outputs. Employing a register approach, we analyze the situational and linguistic characteristics of texts across three different registers—essays, critiques, …

Machinability Characteristics Study On Hibiscus Rosa-Sinensis Reinforced Polymer Composites Using Soft Computing Techniques, Sawan Shetty, Raviraj Shetty, Rajesh Nayak, J. P. Supriya

Open Access archive

Understanding the drilling behaviour of composite materials is crucial for optimizing their manufacturing processes and enhancing their applicability across various industries. In this study, the drilling process of Hibiscus Rosa-Sinensis Polymer matrix composites is investigated due to the significance of investigating such advanced and sustainable composite materials for their potential applications. Hibiscus Rosa-Sinensis Fibers are extracted and processed from the outer bark of the hibiscus plant, are incorporated into polymer matrices in varying weight percentages (0 Wt%, 10 Wt%, 20 Wt%) to form discontinuously reinforced polymer composites. Samples with uniform dimensions of 150 × 75 × 15 mm, are used …

Iot And Smart Sensors For Remote Sensing Healthcare And Agriculture Applications, Vijayalaxmi Kadrolli, Gauri Kalnoor

Open Access archive

In order to better serve patients and make better decisions, the healthcare industry is always adapting to incorporate new technology. In this in-depth analysis, we look at how geographic information systems (GIS) and remote sensing (RS) have revolutionised contemporary medicine. Improving healthcare planning, illness management, and environmental health evaluation are just a few of the many potential outcomes of integrating remote sensing and GIS, two technologies that can gather data from great distances and then analyze it spatially. We explore the many facets of SR and GIS in health care in this paper. To guarantee the inclusion and relevance of …

Enhancing Urban Sustainability: A Study On Lightweight And Pervious Concrete Incorporating Recycled Plastic, S. Sathvik, Pathapati Rohithkumar, Pshtiwan Shakor, Shahaji

Open Access archive

Increasing of plastic waste threatening ecosystems globally, this experimental work investigates recycled plastics as sustainable aggregate replacements in pervious concrete. Pervious concrete allows water passage but has installation/maintenance difficulty due to high weight. This research addresses the lack of eco-friendly lightweight pervious solutions by assessing physical and mechanical performance of mixes with 100% recycled plastic and traditional aggregate percentages. Density reduced 12% using a 100% plastic aggregate mix, achieving 1358 kg/m³ with compressive strength of 3.92 MPa, adequate for non-structural applications. A 7.8% decrease in water absorption versus conventional pervious concrete signifies retained porosity and permeability despite the plastic …

Optical, Thermal, And Structural Properties Of Er3+ Incorporated Double Perovskite Ca2mgwo6 Phosphors, Kiran R, Princy A, S. Masilla Moses Kennedy, M. I. Sayyed

Open Access archive

Novel Ca2MgWO6 phosphors doped with xEr³⁺ (x = 0.5, 1, 2, 3, and 4 mol%) were synthesized using the solid-state reaction method. Using XRD and FTIR analyses, successful product formation was confirmed. Subsequently, the phosphor was optimized by focusing on the characteristic emission peak at 529 nm, arising from the transition ²H11/2 → ⁴I15/2. The optimal concentration of Er³⁺ for the given host system was determined to be 2 mol%. Meticulous analyses revealed that the optimized phosphor possessed a direct optical band gap of 3.68 eV and the bonding parameter confirmed that the nature of bonding was …

An Assessment Of Workability, Mechanical And Durability Properties Of High-Strength Concrete Incorporating Nano-Silica And Recycled E-Waste Materials, Pawan Hinge, Tushar Shende, Rahul Ralegaonkar, Bhupesh Nandurkar

Open Access archive

Background: Presently, the proper disposal of E-waste is a major challenge for all nations. Portland cement and aggregates continue to play a major role in the construction industry's operations. Meanwhile, natural resources like gravel (aggregates) are becoming scarce. Thus, E-waste is now offering the building industry a chance to replace traditional aggregates. The main goal of the current study is to determine the highest amount of E-waste that may be replaced with 10-mm coarse aggregates with a nano-silica associated ternary blend in M-60 grade high-strength concrete while still maintaining the designed concrete's mechanical, durability, microstructural and workability characteristics. Results: When …

Feasibility Study On Microwave Glucose Level Monitoring, Ricardo Cepeda

Theses and Dissertations

Diabetes management heavily relies on regular blood glucose monitoring, which traditionally involves invasive techniques. In recent years, significant research has been directed towards developing non-invasive glucose monitoring methods, particularly using electromagnetic waves. This study explores the feasibility of detecting blood glucose levels non-invasively by measuring the resonant frequency shifts of an antenna, influenced by the dielectric properties of blood. Microwave measurement techniques have garnered attention due to their ability to safely penetrate human tissue and detect biochemical markers like glucose. While previous studies have established a link between glucose concentration and dielectric properties, many techniques suffer from poor sensitivity or …

Tanzania Design Build 2024, Elli S. Berger, Samantha M. Maher, Victoria J. Maestas

Architectural Engineering

In 2007 David Lambert, a Cal Poly ARCE alumnus, was inspired to build a school in Tanzania after spending time in Kenya completing his senior project. With the support of multiple Cal Poly faculty members, he assembled a team to launch what would become his master’s program project. Since no existing organizations could support their efforts, the team founded their own initiative, the Mbeses Initiative for Sustainable Design (MISD). The Cal Poly team shared their design ideas with multiple volunteer groups in Tanzania and eventually connected with Fr. Setonga who helped the initiative gain traction. A few years later, the …

Analyzing Tms 402 -22 : Design Of Special Reinforced Masonry Shear Walls, Tristan D. Aranda

Architectural Engineering

This experiment examines possible inconsistencies in the TMS 402-22 masonry code between Section 7.3.2.5 and Section 9.3.5.6.2, regarding the requirements for special boundary elements in Special Reinforced Masonry Shear Walls. By investigating the two sections, it can be determined whether the two sections are in accordance with each other regarding aspect ratio. Tensile forces and strains are calculated respectively for each wall and block type and are compared to the respective tensile yield forces and ductile strains. This determines which respective boundary elements go past yield and become ductile. Based on this determination, recommendations can be made to the …

Universal Shape Replication Via Self-Assembly With Signal-Passing Tiles, Andrew Alseth, Daniel Hader, Matthew J. Patitz

Computer Science and Computer Engineering Faculty Publications and Presentations

In this paper, we investigate shape-assembling power of a tile-based model of self-assembly called the Signal-Passing Tile Assembly Model (STAM). In this model, the glues that bind tiles together can be turned on and off by the binding actions of other glues via “signals”. Specifically, the problem we investigate is “shape replication” wherein, given a set of input assemblies of arbitrary shape, a system must construct an arbitrary number of assemblies with the same shapes and, with the exception of size-bounded junk assemblies that result from the process, no others. We provide the first fully universal shape replication result, namely …

Enhancing Webtas: From An Atam Simulator To A Developmental Environment, Elizabeth G. Schmidt

Electrical Engineering and Computer Science Undergraduate Honors Theses

As interest in a niche research area, like the abstract Tile Assembly Model (aTAM), grows it is crucial to ensure that simulation tools are accessible and user-friendly for a broad audience. Existing resources can pose challenges for less experienced users, highlighting the need for enhancements that improve usability and functionality. To address these issues, key upgrades to the current online simulation platform, WebTAS, were implemented, including breakpoint functionality and nondeterminism checks, alongside features such as XML file integration, image capturing, and simulation view resets. These enhancements collectively elevate the platform from a basic learning tool to a comprehensive environment for …

Leveraging P4 Programmable-Hardware Switches For In-Network Pmu Packet Recovery, Evan Michael Bonar

Electrical Engineering and Computer Science Undergraduate Honors Theses

Phasor Measurement Unit (PMU) systems are essential for real-time power grid monitor- ing but often face data loss due to network delays, equipment malfunctions, or transmis- sion errors. Traditional centralized recovery solutions introduce significant latency and scalability challenges. This thesis presents a P4-based in-network recovery mechanism that embeds detection and recovery directly into the data plane of P4-enabled programmable switches, significantly reducing recovery time and infrastructure complexity. Using the Aurora 610 switch, the system detects missing packets via sequence number analysis and recovers magnitudes with an efficient register-based algorithm.

Evaluation demonstrates high accuracy and low latency, achieving a mean absolute …

21st Century Community Learning Centers: Program Evaluation Evidence From Texas, Rosilyn Jackson

Electronic Theses and Dissertations

Texas afterschool programs strive to enhance academic performance and meet students' needs, yet gaps in program quality persist. This study evaluated 21st Century Community Learning Centers’ performance in reading, math, GPA, attendance, in-school suspension, and engagement, both within these categories and against program goals and demographics. Theoretical frameworks used in this study include the logic model, social justice theory, and cultural relevance theory. This quantitative study utilized a nonexperimental and secondary data research design which utilized five statistical tests: the Pearson Product-Moment Correlation, One-Way repeated ANOVA, Spearman Correlation, the Independent Samples t-Test, and the Mann-Whitney U Test. Results showed that …

Bioindicators Of Mercury In Riverine Systems, Kathryn Mudica

All-Inclusive List of Electronic Theses and Dissertations

This study focuses on the bioaccumulation and biomagnification of mercury in freshwater food webs, with emphasis on bioindicators, such as macroinvertebrates, crayfish, and river otters. Despite regulatory efforts and advancements in monitoring, significant gaps remain in understanding mercury dynamics in freshwater systems—especially regarding its transport, methylation, and bioavailability across different ecosystems. To address these knowledge gaps, this study adopts a biocentric approach, emphasizing the role of living organisms in their environment. By utilizing macroinvertebrates, crayfish, and river otters as bioindicators, we aim to assess mercury bioavailability and distribution. These organisms provide varying temporal and spatial scales of mercury accumulation, offering …

An Exploration Of Adverse Childhood Experiences In K-12 Teachers, Michelle E. Marciniak

Doctorate in Education

“Trauma during childhood has the potential to adversely affect one’s physical, cognitive, emotional, and social development across the lifespan” (Champine et al., 2021). Given the epidemic of trauma across the United States, it is statistically probable that teachers who serve in the trenches to provide safe, engaging, and nurturing environments for students are still suffering from the impacts of Adverse Childhood Experiences (Dunn, 2022). This qualitative grounded theory study sought to capture and highlight the experiences of 12 K-12 teachers who have experienced past childhood trauma and shed light on their experiences in the classroom day to day. Participants were …

Assessing Reproducibility Challenges In Clinical Metabolics, Darcy Lin Cochran

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

Current metabolomics research is expanding to be multiplatform and interdisciplinary. Metabolomic analysis has the potential to provide detailed insight into any biological system of interest to analyze the underlying molecular mechanisms of variables like environment, disease, and genetics. Human clinical metabolomics is a major research area that is often focused on finding biomarkers or panels of biomarkers for different diseases. However, results are difficult to compare across different laboratories since the field of metabolomics has yet to widely adopt best practices for sample preparation, data acquisition and data processing, results are difficult to compare across different laboratories.

This thesis focuses …

Controller Software: Evolution, Identification, And Implementation, Balaji Balasubramaniam

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

In the annals of automation history and advancement, one can find control technology is at the core. Modern-day controllers rely heavily on software capability to provide stability and improve the system's performance. In particular, drone flight controllers use autopilot control software to accomplish autonomous navigation from take-off to landing. However, we know very little about how the controller code modifications and its impact, particularly at the software level. No general framework has been developed to identify the control code changes and observe the real values of software control loops at the kernel layer.

In this thesis, we lay the foundation …

Mining Work Items To Streamline Software Maintenance Tasks, Salomé Perez-Rosero

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

Software engineering maintenance tasks often require associating code changes into groupings of related units of work to have as much information as possible about the developments toward addressing a specific code task. A comprehensive understanding of how a code task has evolved helps developers make better decisions about changes in the overall codebase, where a commit represents the set of code changes made to the codebase at a specific time. While the concept of work items as logically related code changes has been primarily theoretical, its impact on software maintenance tasks, such as tracing the origins of bugs or fixes …

Social Patterns In Physical Infrastructure: Associations Between Socioeconomic Status And Walkability, Kaylee Coursey

Honors Theses

Studies analyzing the relationship between socioeconomic status and physical infrastructure of a city are inconsistent in findings but agree on racial and class disparities. Utilizing walkability (Walk Score) as a measurement for physical infrastructure, this thesis aims to understand the relationship between socioeconomic status and the walkability of a city. The Socio-Ecological framework suggests that environmental experiences are correlated with the social functioning of a community. Thus, socioeconomic status has a significant impact on the quality of one’s built environment.

Using housing data from the 2021 American Community Survey (ACS) and Walk Score, a series of quantitative analyses were conducted …

Neodymium Doped Zinc Oxide Based Advanced Flexible Piezoelectric Energy Harvester And Self-Powered Biomotion Sensor, Muhtasim Ul Karim Sadaf, Abu Musa Abdullah, Haimanti Majumder, Sk Shamim Hasan Abir, Mariana Torres, Karen Lozano, Md. Wasikur Rahman, M. Jasim Uddin

Mechanical Engineering Faculty Publications

Flexible piezoelectric devices have garnered a lot of attention for their potential as energy harvesters and transducers. In this work, Neodymium (Nd) doped Zinc Oxide (ZnO) based flexible piezoelectric energy harvester and sensory device has been developed. Nd-doped ZnO has been synthesized using wet chemical co-precipitation and incorporated in Polyvinylidene Difluoride (PVDF) polymer matrix along with Multiwalled Carbon Nanotubes (MWCNT) to produce flexible piezoelectric films. The piezoelectric output of the device is tested at variable tapping frequency (60 to 240 BPM) and pressure (10 to 40 psi). The device has also been tested with conventional electronics like bridge rectifiers, capacitors, …

Exploring The Pathway Of Far-Right Radicalization In The Age Of Neoliberalism, Biko Koenig

Kroc IPJ Research and Resources

This paper examines the complex relationship between young white men and the rise of far-right extremism in contemporary American politics, particularly in the context of the MAGA movement and its implications for political violence. The January 6th riot serves as a stark example of how mainstream political affiliations can rapidly devolve into radicalization, as evidenced by the profiles of participants who often lacked formal ties to extremist groups yet shared a commitment to conspiracy-laden narratives and grievances. By framing these shifts within the broader socio-economic landscape marked by neoliberal decay, I explore how feelings of inequality, alienation, and powerlessness serve …

The New Frontier Of Guidance Reviewability, Tomás Rios

Michigan Law Review

In the administrative context, agency actions must be “final” to trigger judicial review. The Supreme Court’s opinions in Sackett v. Environmental Protection Agency and U.S. Army Corps of Engineers v. Hawkes Co. marked an important shift in finality doctrine by emphasizing that the calculus of whether agency guidance is “final” may turn on its practical effects. For decades, agency guidance rarely warranted judicial review because it is not legally binding and, thus, not final. But the advent of the Sackett-Hawkes pragmatic analysis has changed the landscape, raising particular concerns for agencies relying on promulgating guidance documents to “softly” regulate. This …