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Cas Connections- 2024 Spring Term - July, Dean's Office College Of Arts And Science

CAS Connections

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Dual Light Emission Of Cssni3-Based Powders Synthesized Via A Mechanochemical Process, Xuan Huang, Xiaobing Tang, Xiyu Wen, Yuebin Charles Lu, Fuqian Yang

Chemical and Materials Engineering Faculty Publications

Lead toxicity has hindered the wide applications of lead halide perovskites in optoelec- tronics and bioimaging. A significant amount of effort has been made to synthesize lead-free halide perovskites as alternatives to lead halide perovskites. In this work, we demonstrate the feasibility of synthesizing CsSnI3-based powders mechanochemically with dual light emissions under ambi- ent conditions from CsI and SnI2 powders. The formed CsSnI3-based powders are divided into CsSnI3-dominated powders and CsSnI3-contained powders. Under the excitation of ultraviolet light of 365 nm in wavelength, the CsSnI3-dominated powders emit green light with a wavelength centered at 540 nm, and the CsSnI3-contained powders …

Pressure Dependence Of The Rate Coefficient Of Ozone Using Master Equation Simulations Of Recombination Kinetics, Adil Yermek

Master's Theses (2009 -)

The ozone layer in Earth’s atmosphere is distinctive and crucial for the evolution of life. Investigating the process of ozone formation aids in comprehending the evolution of our planet’s atmosphere. The reaction that forms ozone is O + O2 → O3. One can describe ozone forming reaction approximately using Lindeman mechanism, which is very handy. However, its limitation arises from assuming a steady-state approximation, which neglects transient dynamics and complexities that could impact reaction kinetics under non-equilibrium conditions. For this reason, Master Equation simulations can be seen as an enhancement or extension of the Lindemann mechanism, providing a thorough understanding …

Design And Verification Of A Planar, Programmable, Compliant Hand For Use In General Open-Loop Constrained Manipulation, Jacob Frye

Master's Theses (2009 -)

Conventional robots are adept at performing tasks where the desired absolute position of the robot's end effector is well defined. However, these robots will struggle with tasks in which the desired position is poorly defined, subject to variation, or determined by contact with a constraint with positional uncertainty. This problem can be solved by introducing compliance to the system, either active or passive. Active compliance uses force feedback to make corrective motions, but is limited in speed and experiences higher contact forces than passive systems. Passively compliant systems are capable of realizing the necessary compliance for a given task but …

Investigation Of Fluid Flow During Flow Boiling Inside A Horizontal Rectangular Channel With Single-Sided Heating Using Particle Image Velocimetry, Chinmay Shingote, Farshad Barghi Golezani, Chirag R. Kharangate

Faculty Scholarship

Subcooled flow boiling is a highly efficient cooling systems for thermal management systems. This study explores the intricate dynamics of subcooled flow boiling within a horizontal channel, investigating the impact of vapor generation on liquid-phase velocity using Particle Image Velocimetry (PIV) and advanced image processing techniques. Four mass flow rates ranging from 5–20 g/s with subcooled inlet conditions are investigated in a rectangular channel with single-sided heating. Three regions of interest along the heated channel are investigated for instantaneous PIV analysis. The PIV system captures detailed velocity profiles, illustrating the impact of varying mass flow rates and heat flux levels …

Parental Political Engagement And Self-Efficacy: An Exploratory Study, Christina Randolph, Robert Needlman, Ellen Hutchinson

Faculty Scholarship

Political engagement (PE) is associated with a sense of empowerment. PE by parents affects children's lives. This study explored parents' attitudes about inclusion of political engagement discussion in well-child care. Because voting is an expression of empowerment, we hypothesized that voting would be related to higher parenting self-efficacy. We administered a brief questionnaire to a convenience sample of parents/guardians at well-child visits at an urban hospital. The questionnaire included 10 Likert scale questions touching on parenting efficacy; beliefs about political engagement; voting behaviors; and demographics. Analysis included descriptive statistics, correlations, and factor analysis. Among the 70 respondents 84% were mothers; …

Theoretical And Experimental Evaluation Of The Electronic Relaxation Mechanisms Of 2-Pyrimidinone: The Primary Uva Absorbing Moiety Of The Dna And Rna (6–4) Photolesion, Sean J. Hoehn, Sarah E. Krul, Carlos E. Crespo-Hernández

Faculty Scholarship

The (6–4) photolesion is a key photodamage that occurs when two adjacent pyrimidine bases in a DNA strand bond together. To better understand how the absorption of UVB and UVA radiation by the 2-pyrimidinone moiety in a (6–4) lesion can damage DNA, it is important to study the electronic deactivation mechanism of its 2-pyrimidinone chromophore. This study employs theoretical (MS-CASPT2/cc-pVDZ level) and experimental (steady state and femtosecond broadband spectroscopic) methods to elucidate the photochemical relaxation mechanisms of 2-(1H)-pyrimidinone and 1-methyl-2-(1H)-pyrimidinone in aqueous solution (pH 7.4). In short, excitation at 320 nm leads to the population of the S1¹(ππ*) …

Marketplace Summer 2024, Southern Adventist University

MarketPlace - School of Business Newsletter

The Summer 2023 issue of MarketPlace features information on Business department events, Alumni features, and a research competition.

Improving Asphalt Binder Durability Using Sustainable Materials: A Rheological And Chemical Analysis Of Polymer-, Rubber-, And Epoxy-Modified Asphalt Binders, Anas Abualia, Moses Akentuna, Louay N. Mohammad, Samuel B. Cooper, Samuel B. Cooper

Faculty Publications

When exposed to sun radiation and heat, asphalt binders age, resulting in reduced flexibility, cracking, and pavement failure. Given the increasing demands of traffic, environmental concerns, and resource scarcity, highway agencies and researchers are actively seeking solutions that meet performance requirements and demonstrate awareness of using non-renewable resources. Epoxy asphalt (EA) promotes sustainability concepts due to its production at significantly lower mixing and compaction temperatures, enhanced durability, improved serviceability, reduced maintenance needs, and successful recycling and reuse in hot asphalt mixtures. Crumb rubber, a widely recognized recycled waste tire material, is considered a viable option for promoting sustainability and enhancing …

A Review Of The Rheological Consistency Of Materials, Alan Gurt, Michael Khonsari

Faculty Publications

Despite the ubiquity and prevalence of rheological consistency across a wide range of industries, there is no clear consensus on its meaning or on one particular technique for quantifying it. Instead, there exist various definitions of “consistency” that are each specific to a given context, and each industry has its own procedure for measuring it. This paper organizes the many subjects and terminologies associated with consistency, providing a comprehensive guide of fundamental mechanics, fundamental properties, modeling techniques, and standardized tests that describe consistency. This includes outlining the rheological models that describe the behavior of viscoelastic and non-Newtonian materials as well …

A Facile And Sustainable Integrated Fabrication Strategy For Multi-Performance 316l Stainless Steel, Yang Yang, Yi Zhu, Michael M. Khonsari, Sai Wang, Wei Song, Huayong Yang, Yu Zhang

Faculty Publications

Additive manufacturing enables innovative design and integrated manufacturing of complex components. Metallic components with multi-performance and high reliability are always desirable for a broad range of high-end industries. Multi-material additive manufacturing is a promising way to provide multiple performances, yet there exist several persistent challenges on multi-material sustainability and recycling, interfacial defects and strength, dimensional accuracy and fineness, and manufacturing efficiency and cost, prohibiting its widespread practical applications. In this study, we introduce an additive/modification integrated manufacturing (AMIM) strategy for fabricating highly reliable multi-performance metals using only a single material with a one-step process. We demonstrate that, through a unique …

Breaking Silence: The Historiography Of The Bear River Massacre, Logan C. Romney

GLI MA in American History Student Works

This paper explores the historiography of the Bear River Massacre, analyzing its progression from historical silence and mischaracterization to recognition and nuanced interpretation. By addressing biases, evolving narratives, and modern efforts to commemorate the tragedy, this paper underscores the importance of preserving this complex and overlooked chapter of American history.

Historiographical Interpretations Of The Diplomatic Career Of John Quincy Adams, Nicholas E. Zilempe

GLI MA in American History Student Works

This historiography paper seeks to determine how historians have interpreted the diplomatic career of John Quincy Adams over the last one hundred and seventy-five years. As sixth President of the United States and son of second President and Founding Father John Adams, John Quincy Adams has been the subject of significant historical interpretation since his 1848 death. Though the demand for writing about his life was strong in the immediate wake of his death, the subsequent body of work that permeated throughout the nineteenth century ultimately fell short of addressing the monumental diplomatic career Adams held before his Presidential and …

Maternal Sacrifice And Resilience: The Legacy Of Harriet Jacobs And Enslaved Black Motherhood, Beverly A. Duran

GLI MA in American History Student Works

This paper explores the unique role of enslaved Black women in preserving family and cultural identity during the American slavery era, focusing on the life and writings of Harriet Jacobs. Through her autobiography, Incidents in the Life of a Slave Girl, Jacobs exemplifies the extraordinary sacrifices and resilience of enslaved mothers, who navigated the dual burdens of racial and gender oppression. The study delves into Jacobs’s years-long confinement in an attic to avoid separation from her children and her use of storytelling, education, and cultural practices to resist dehumanization. It highlights how enslaved women, despite systemic constraints, developed strategies to …

Deep Learning-Based Geomorphic Feature Identification In Dredge Pit Marine Environment, Wenqiang Zhang, Xiaobing Chen, Xiangwei Zhou, Jianhua Chen, Jianguo Yuan, Taibiao Zhao, Kehui Xu

Faculty Publications

Deep learning methods paired with sidescan sonar (SSS) are commonly used in underwater search-and-rescue operations for drowning victims, wrecks, and airplanes. However, these techniques are primarily used to detect mine-like objects and are rarely applied to identifying features in dynamic dredge pit environments. In this study, we present a Sandy Point dredge pit (SPDP) dataset, in which high-resolution SSS data were collected from the west flank of the Mississippi bird-foot delta on the Louisiana inner shelf. This dataset contains a total of 385 SSS images. We then introduce a new Effective Geomorphology Classification model (EGC). Through ablation studies, we analyze …

A Step In A New Direction: Nvidia Gpu Kernel Driver Memory Forensics, Christopher J. Bowen, Andrew Case, Ibrahim Baggili, Golden G. Richard

Faculty Publications

In the ever-expanding landscape of computation, graphics processing units have become one of the most essential types of devices for personal and commercial needs. Nearly all modern computers have one or more dedicated GPUs due to advancements in artificial intelligence, high-performance computing, 3D graphics rendering, and the growing demand for enhanced gaming experiences. As the GPU industry continues to grow, forensic investigations will need to incorporate these devices, given that they have large amounts of VRAM, computing power, and are used to process highly sensitive data. Past research has also shown that malware can hide its payloads within these devices …

On Enhancing Memory Forensics With Fame: Framework For Advanced Monitoring And Execution, Taha Gharaibeh, Ibrahim Baggili, Anas Mahmoud

Faculty Publications

Memory Forensics (MF) is an essential aspect of digital investigations, but practitioners often face time-consuming challenges when using popular tools like the Volatility Framework (VF). VF, a widely-adopted Python-based memory forensics tool, presents difficulties for practitioners due to its slow performance. Thus, in this study, we evaluated methods to accelerate VF without modifying its code by testing four alternative Python Just In Time (JIT) interpreters - CPython, Pyston, PyPy, and Pyjion - using CPython as our baseline. Tests were conducted on 14 memory samples, totaling 173 GB, using a search-intensive VF plugin for Windows hosts. Employing our custom Framework for …

Mars: The First Line Of Defense For Iot Incident Response, Karley M. Waguespack, Kaitlyn J. Smith, Olame A. Muliri, Ramyapandian Vijayakanthan, Aisha Ali-Gombe

Faculty Publications

The proliferation of Internet of Things (IoT) devices across homes, businesses, and industrial landscapes has significantly increased our capability to gather data and automate tasks. Despite their ubiquity, these devices are notably resource-constrained and frequently lack robust security defenses, presenting a substantial risk of intrusion and cyber threats. To address these concerns, we propose a novel anomaly-based host intrusion detection system specifically designed for IoT devices, titled MARS (Memory Anomaly Recognition System). MARS is designed to function as a crucial component in the incident response framework, acting as an early detection system for potential security breaches within an organization's network …

Computational Models As Tools For Supporting Responsive Teaching, Hillary Swanson, Luettamae Lawrence, Jared Arnell, Bonni Jones, Bruce Sherin, Uri Wilensky

Instructional Technology and Learning Sciences Faculty Publications

It is widely agreed that science instruction should help students build new knowledge on the foundation of their prior knowledge. Responsive teaching refers to a family of teaching strategies that pursue and build on student ideas. We introduce a particular approach to responsive teaching and examine how it can be supported by the use of computational models. We analyze an 8^th grade science teacher's facilitation of a class discussion near the end of a lesson on sound. We present a moment-by-moment characterization of her responsive teaching moves, highlighting the ways she used a computational model to help students articulate …

Parent And Community Involvement In Schools, Katie Freking

Master's Theses & Capstone Projects

This school improvement plan at Carlisle Elementary focuses on enhancing parent and community involvement through structured strategies and collaborative efforts. Despite the existing engagement frameworks, the school recognizes the need for more effective integration of caregivers and local stakeholders in educational processes. The plan proposes forming committees, increasing communication, providing inclusive training sessions, and fostering an environment that respects diverse backgrounds. Utilizing the Positive Behavior Intervention System (PBIS) and Tiered Fidelity Inventory (TFI), the project aims to systematically improve family and community participation. Initial data suggest areas such as household communication and caregiver training need significant enhancement. The anticipated implementation …

Multisensory System For Probing Scattering Media, Muralidhar Madabhushi Balaji

Electrical Engineering Theses and Dissertations

There are numerous problems in the physical sciences wherein the scattering of light fundamentally limits our ability to perceive and reason about objects within the visual field. Examples include navigation in foggy weather, detecting hidden contraband/explosives, detecting diseased regions in agricultural produce, and detecting tumors within tissue. In all these scenarios, the scrambling of light paths due to scattering reduces the ability to locate embedded objects and identify their spatial or spectral features.

Existing approaches address the challenge by augmenting optical sensing modalities with complementary techniques that do not rely on optical phenomenology, such as Magnetic Resonance Imaging (MRI) or …

Exploring Aspiring K-12 School Leaders' Understanding Of Culturally Responsive School Leadership, Muhammad S. Uddin, Thurman Bridges

Journal of Educational Leadership in Action

This qualitative document analysis study analyzed 13 aspiring school leaders’ assignments to explore their understanding of Culturally Responsive School Leadership (CRSL). A thematic analysis approach was used to analyze their papers, and five themes emerged. These were (1) leading by example, (2) showing care and support, (3) enhancing teachers’ capacity, (4) ensuring culturally responsive curriculum and instruction, and (5) building teacher-student relationships. The findings of this study showed that aspiring school leaders need more research-based strategies to lead their future schools using CRSL approaches. This study suggested that leadership preparation programs implement praxis-based learning and simulation to prepare future school …

Cte Can Be For Me: Middle School Counselors’ Perception Of Their Knowledge And Abilities To Guide Students In Career And Technical Education In The State Of Texas, Justin W. Hooten, Ronald S. Rhone, Lesley F. Leach, Juanita M. Reyes

Journal of Educational Leadership in Action

A renewed emphasis on career and technical education has guided the transformation of high school education to support alternatives to college achievement. Research shows that career identity development begins in middle school or earlier, though the literature is scarce when discussing career guidance at the middle school level. Through phenomenological interviews, this research attempted to understand the processes and perceptions of middle school counselors when discussing career and technology education with their students. This study revealed recommendations for district officials and those in academia to assist in creating more robust career development programs at the middle school level.

Leading With Hope: A Grounded Theory Exploration Of Trauma Informed Leadership For School Principals, Christopher Bottoms, Robert J. Lynch, Shawn Ricks, Julie Hasson

Journal of Educational Leadership in Action

Before the age of 18, 60% of U.S. youth are estimated to have experienced at least one adverse childhood experience (ACE), with 1 in 6 experiencing four or more ACEs. This study sought to uncover the ways in which school principals understand and enacted ways to support students that have experienced trauma. Using grounded theory methods (n=15), we explored how school principals utilize trauma-informed leadership as a means to support students. The impact of this study may help in the revision of how school principals are evaluated, professional development for school principals, and the academic preparation for school administration candidates.

Leading Participatory Action Research For Teacher Agency, Kimberly Hellerich

Journal of Educational Leadership in Action

Participatory Action Research (PAR) can benefit teachers and students. Based on student-led PAR projects utilized within the author's secondary classroom, student researchers provided instructional strategy recommendations based on student researchers' analysis of peers' survey responses. Yet without a transformative leadership approach, allowing for teacher agency and empowerment, PAR projects will not be successfully implemented. The author describes a set of teacher and leader dispositions that are expected to allow PAR projects to be successful.

Unveiling The Socioeconomic Impact Of The Covid-19 Pandemic On Academic Staff: A Qualitative Analysis Of Financial Perspectives And Job Satisfaction, Saheed Oluwaseun Lawal, Habibat Bolanle Abdulkareem, Omoniyi Adeyemi Rasaq, Tajudeen Ade Jamiu

Journal of Educational Leadership in Action

The study investigated how the Covid-19 pandemic affected lecturers' views on income and satisfaction in private Nigerian universities in Kwara State. It aimed to understand this impact as an opportunity for growth and resilience in the education system. Researchers asked four main questions and involved faculty members from various universities using purposive and convenient sampling methods. Results showed lecturers were generally satisfied with consistent salary payments and associated benefits, but the pandemic had diverse impacts on private universities: decreased spending, staff layoffs, reduced fee payments, and lower student enrollment. To enhance lecturer satisfaction, the study recommended exploring alternative income sources, …

Preparing Teachers For The Rise Of Challenging Behaviors, Abbie Chesling

Master's Theses & Capstone Projects

Previous research indicates the increase of challenging behaviors observed and how those behaviors impact the classroom. Findings from the research show the lifelong effects of adverse childhood experiences, trauma manifestations, and educational impacts. Other studies acknowledged educators and their experiences with negative behaviors in the classroom. Those same studies recognized a lack of teacher readiness to manage challenging behaviors in the classroom. A school improvement plan was designed to provide all school staff with targeted professional development to help mitigate challenging behaviors and the lasting impact in the school setting.

Effective Classroom Instruction For Ell Students, Kyle Johnson

Master's Theses & Capstone Projects

Research shows that English Language Learners (ELL) consistently perform worse than their peers on standardized exams. Studies have also shown that teachers are not prepared to teach English language learners effectively. This school improvement plan was created with the goal of improving the performance of struggling students. Through increasing teacher efficacy, students will succeed more. This plan includes a professional development strategy, opportunities for peer learning, and coaching for teachers.

Teaching Practices To Prevent And Support Challenging Behaviors In Early Childhood Classrooms, Abigail Koster

Master's Theses & Capstone Projects

search is finding that challenging behaviors are occurring in classrooms more and more. Challenging behaviors are one of the main reasons that teachers are leaving the profession along with large workloads, and lack of administration and community support. Research shows that teachers need to have a strong classroom management plan and high consistence expectations to diminish challenging behaviors from occurring in the classroom. With research in mind, a school improvement plan was created to provide professional development for teachers in the fall to support them in creating strong classroom management plans for the following school year. Teachers will using the …

Adopting Trauma-Invested Practices, Strategies, And Interventions, Tara F.K. Lynn

Master's Theses & Capstone Projects

The aim of this school improvement plan is to implement professional development by raising trauma awareness, developing a trauma-invested lens, and implementing trauma-invested practices, strategies, and interventions across all elementary school environments. Existing literature emphasizes the prevalence of trauma among children and its adverse effects on their well-being and academic performance. National, State of Iowa, and Iowa County, Iowa data indicates a rise in traumatic childhood experiences, proving the need for increased professional development. Many educators and administrators do not understand the effects of trauma on the emotional well-being, brain growth, and learning of students with trauma and how to …