Digital Commons Network^™

Rapid Kinetic Fluorogenic Quantification Of Malondialdehyde In Ground Beef, Keshav Raj Bhandari

Theses and Dissertations

Presented herein is rapid kinetic fluorogenic method to quantify malondialdehyde (MDA) in ground beef, utilizing 2-thiobarbituric acid (TBA) as the fluorogenic probe. This assay significantly shortens the total analysis time, from sample preparation to data acquisition, to just six minutes presenting a major advancement over traditional methods that typically require two hours and multiple instruments. The assay’s robustness against matrix interferences was validated using sample volume variation and standard addition calibration methods. Additionally, the effects of ambient exposure to air, washing, and cooking on MDA content in raw ground beef were quantified. While both ambient exposure to air and cooking …

Examining Relationships Among Teachers’ Perceptions Of School Climate And Culture And Their Sense Of School Belonging, Kimberly D. Lathan

Theses and Dissertations

The purpose of the study was to examine the relationships among teachers’ views of school climate and culture and their sense of belonging within a Mississippi school district. Using a quantitative survey research design, data were collected from 99 teachers during the 2024–2025 school year through the School Climate Survey and the School Belonging Scale Survey. The researcher sought to determine whether differences in the teachers' perceptions of their schools’ climate and culture and their sense of belonging existed by gender and grade span, as well as whether significant relationships existed among the constructs of their schools’ climate and culture …

Design, Development, And Validation Of An Automated Hole-Punching System For Precision Irrigation In Lay-Flat Poly Pipe Tubing, Micah James Foster

Theses and Dissertations

Increasing pressure on water resources in agricultural regions, particularly the Mississippi Delta, demands innovative irrigation technologies to optimize water usage while maintaining crop productivity. This research presents the design, development, and validation of an automated hole-punching system for lay-flat poly pipe tubing used in precision irrigation applications. The system ensures accurate and consistent hole placement through an integrated rotary cutting die, a PLC-based control architecture, stepper motor actuation, and distance-sensing and position-synchronization. The software logic maintains precise hole spacing despite variations in tubing speed. System performance was evaluated through extensive testing and statistical analysis of hole-spacing accuracy, repeatability, and sagitta-based …

Advancing Equity In Adolescent Mental Health: A Literature Review And Telehealth Program Design For School-Based Access, Renatta Lindsey

Theses and Dissertations

Adolescents in the United States (U.S.) are experiencing a mental health crisis, with disproportionately high prevalence rates among marginalized youth. Approximately 1 in 5 adolescents are diagnosed with a mental, emotional, or behavioral condition (Panchal, 2024; Sappenfield et al., 2024). Yet, an estimated 40% (1.8 million) of adolescents aged 12-17 who experience a major depressive episode did not receive treatment (Substance Abuse and Mental Health Service Administration, 2024). This project examines existing barriers that hinder access to care for this population. While schools are the most common settings for adolescent mental health supports, more than half report difficulties with meeting …

Complex-Valued Structured Parameterized Learnable Filter Banks For Time-Frequency Domain Based Classification, Sabyasachi Biswas

Theses and Dissertations

Most conventional radar-based classification methods, including human activity recognition (HAR) and modulation recognition, rely on computationally intensive two-stage processes involving time-frequency (TF) transformations, such as the short-time Fourier transform (STFT), to generate micro-Doppler signature (��-Ds). These ��-Ds are then classified using deep neural network (DNN), a method introducing significant temporal latency and limiting real-time applicability. To overcome these limitations, this dissertation proposes a novel complex-valued Deep learning (DL) framework employing structured parameterized learnable filter (PLF) banks, enabling direct classification from raw radar data. The research first introduces high-resolution spectrogram network (HRSpecNet), a deep learning model designed to reconstruct high-resolution ��-Ds …

Improvement Of Spot Spraying Treatments Using Precision Application Technologies, Steffen Telgmann

Theses and Dissertations

Chemical plant protection is widely adopted in agriculture and plays a crucial role in maximizing plant production. Several developments for site-specific applications have been implemented in chemical plant protection, driven by economic, social, and environmental considerations. Spot spraying technology, which utilizes single nozzles or a limited number of nozzles to treat specific areas, is now available and gaining market penetration. However, its performance depends on carefully optimized application parameters to ensure consistent coverage and efficacy, thereby mitigating both under- and overdosing. To address concerns including reduced efficacy, resistance evolution, and environmental impacts, this work researches the effects of nozzle selection …

The Social In The Spiritual: Non-Theistic Spirituality In 12-Step Addiction Recovery, Steph Jacobs

Theses and Dissertations

To investigate whether Western-raised Narcotics Anonymous (NA) members engage in non-theistic spirituality and non-humanist modes of sociality with non-human beings, I conducted six qualitative interviews and a small-scale survey within a Vancouver NA community. The majority of participants practice non-theist spirituality, and three interviewees relate to non-humans in ways not accounted for by Western humanism. Findings suggest that connection and sociality are intrinsically woven into recovery and well-being. This research opens conversations about non-theistic spirituality in NA recovery, non-human sociality and healing, processes of ontological negotiation, and the entanglement of spirituality, sociality, and well-being. Through daily practices of exploration and …

A Case Study On Redesigning Classroom Activities And Assessments For Generation Z Students, Sushma Shrinivasan

Theses and Dissertations

This dissertation investigates the dynamic interplay between pedagogical strategies, learner diversity, and emerging educational technologies through three interconnected studies. Study 1 compares Traditional instruction, Problem-Based Learning (PBL), and Simulation-Based Learning (SBL), revealing that while PBL and SBL enhance student performance—particularly PBL—their impact on perceived learning varies. Notably, SBL reduced perceived learning despite strong outcomes, underscoring the affective and metacognitive complexities of active learning. Study 2 examines the role of demographic factors such as gender, ethnicity, employment, and first-generation status, finding no significant main effects but identifying a key two-way and three-way interactions, suggesting that instructional effectiveness is influenced by the …

Understanding Outer Membrane Vesicle Biogenesis In Bacteroides Thetaiotaomicron, Evan J. Pardue

Arts & Sciences Graduate Student Theses and Dissertations

Outer membrane vesicles (OMVs) are small proteoliposomes generated by active protrusion of the outer membrane (OM) in Gram-negative bacteria during growth. Over 60 years of experimentation has ascribed numerous functions to OMVs produced by different bacteria. However, the mechanism(s) by which OMVs are produced is poorly understood. Due to this, the field remains controversial because many regard OMVs as byproducts of cell lysis and question their physiological relevance. Previous studies in Pseudomonas aeruginosa and related species confirmed that these microbes undergo programmed cell death that results in the stochastic release of vesicles and cellular contents. On the contrary, Bacteroides spp. …

Implementation Factors For Wearable Fall Injury Mitigation Technology: A Framework For Technology Adoption, Richard G. Stefanacci, Rebecca J. Tarbert, Nicole Hemenover

College of Population Health Faculty Papers

OBJECTIVES: To identify implementation factors influencing the adoption of wearable fall injury mitigation technology in long-term care (LTC) settings and develop a practical framework for technology implementation success.

DESIGN: Mixed-methods assessment of a multicenter evaluation examining organizational, staff, and resident factors affecting technology adoption.

SETTING AND PARTICIPANTS: Ten LTC facilities implementing the Tango Belt, a wearable airbag device for hip protection during falls. Analysis included 134 intervention participants (mean age 87.3 years, 76% female, 93% with fall history in past year) and comprehensive stakeholder feedback from staff, leadership, residents, and families.

METHODS: Quantitative measures included device adherence rates, training attendance, …

Relationship Between Working Memory And Reading Comprehension: A Secondary Meta-Analysis, Gennadi Mikhailik

Doctoral Dissertations

Although working memory (WM) capacity has been highlighted in many theories of first-language (L1) and second-language (L2) reading comprehension, some scholars argue that its importance may be overstated and that existing findings are still inconclusive. Even with extensive research since 1995, the literature has lacked a thorough quantitative review of these results. This study shows that WM capacity is positively related to reading comprehension. The current secondary meta-analysis examined the relationship between WM capacity and reading comprehension in both L1 and L2, using two authoritative meta-analytic datasets: Daneman and Merikle’s (1996) for L1 and Jeon and Yamashita’s (2022) for L2. …

Fort Hays State University Tiger Weekly, December 12, 2025, University Relations

Tiger Weekly Newsletters

No abstract provided.

A Trigger For The Autonomous Decommissioning Of Smart Devices, Ravindra Mangar, Jared Chandler, Jingyu Qian, Carl A. Gunter, Timothy J. Pierson, David Kotz

Dartmouth Scholarship

Smart devices are ubiquitous in modern environments, yet their decommissioning phase remains poorly studied and often overlooked in system design. We define secure decommissioning as the process by which a smart device securely disconnects from its environment and makes sensitive data inaccessible. If not decommissioned, devices may retain sensitive information – such as security credentials or user-behavior data that could be recovered by an adversary. Unfortunately, some users may forget to decommission a device when they dispose or sell it, and cannot decommission a device that is lost or stolen. This paper investigates a trigger mechanism for individual wireless smart …

More Than Just A Criminal: Talking Back As A Critical Autoethnographic Journey, Anakin Rivera Ramirez

Psychology Faculty Publications and Presentations

This article explores the experiences of doctoral students with criminal records navigating higher education, using a critical theoretical framework to highlight the unique challenges and triumphs I faced. Drawing upon decoloniality and critical race theory perspectives and activism, I define my critical scholarship as challenging the dominant oppression through thoughts and actions. Through autoethnographic and self-reflective narratives, I reflect on how my lived experiences as a Latino who has experienced criminalization. I have shaped my academic pursuits and critical consciousness. The autoethnography discusses systemic barriers such as stigma, discrimination, and institutional biases, showing how these obstacles have informed the author’s …

Stakeholder Criteria For Trust In Artificial Intelligence-Based Computer Perception Tools In Health Care: Qualitative Interview Study, Ansh Rai, Meghan E Hurley, John Herrington, Eric A Storch, Casey J Zampella, Julia Parrish-Morris, Anika Sonig, Gabriel Lázaro-Muñoz, Kristin Kostick-Quenet

Faculty, Staff and Students Publications

Background: Computer perception (CP) technologies hold significant promise for advancing precision mental health care systems, given their ability to leverage algorithmic analysis of continuous, passive sensing data from wearables and smartphones (eg, behavioral activity, geolocation, vocal features, and ambient environmental data) to infer clinically meaningful behavioral and physiological states. However, successful implementation critically depends on cultivating well-founded stakeholder trust.

Objective: This study aims to investigate, across adolescents, caregivers, clinicians, and developers, the contingencies under which CP technologies are deemed trustworthy in health care.

Methods: We conducted 80 semistructured interviews with a purposive sample of adolescents (n=20) diagnosed with autism, Tourette …

Building From The Ground Up: Informing Inclusive Curriculum Design Through Qualitative Inquiry: Development Of An Early Childhood Curriculum For Children In Mississippi, Alicia Deaver

Theses and Dissertations

Curriculum is a vital component of high-quality early care and education programs. Barriers such as cost, limited education and training, and restricted access to materials often make it difficult for many programs to adopt or implement developmentally appropriate curricula. Effective curriculum implementation relies on individualization and cultural responsiveness to be fully inclusive of children of all abilities. This study addressed the formative and summative processes of the My Mississippi Adventures project, a curriculum developed for use by early childhood educators throughout the state. The curriculum was designed with direct input from early childhood educators to address the unique challenges faced …

Improving Artificial Intelligence Literacy Among Middle School Students Using Tangible Objects, Sayantani Dutta

Theses and Dissertations

Given the rapid advancement of Computer Science (CS) and Artificial Intelligence (AI), introducing these disciplines early and effectively in education is essential. Many middle school students, however, struggle to understand these subjects when taught with traditional, abstract, and screen-based methods, which often fail to engage students or build deep conceptual understanding. This study argues that tangible, hands-on learning tools and interactive activities make AI and CS concepts more accessible, concrete, and engaging for students. The findings show that, compared to traditional lectures, hands-on activities lead to substantially improved comprehension, retention, and enjoyment. While the sample size poses limitations, the evidence …

Toward A Unified Network Flow Framework: From Conservation Principles To Fluid Dynamics Models, Zonghan Zhang

Theses and Dissertations

Network flows govern a wide range of critical systems, from tangible infrastructures like transportation and power grids to replicable processes such as information spread and epidemics. While tangible flows obey conservation laws and physical constraints, replicable flows, like rumors or viruses, can grow, decay, or vanish unpredictably. Despite their increasing interaction in real-world settings, these flow types are typically modeled in isolation, using disconnected mathematical frameworks. This dissertation presents a unified modeling approach that bridges the gap between conserved and replicable flows by embedding principles from fluid dynamics into graph-based propagation models. I introduce physically informed extensions to classical models, …

Early Genetic Evolution Of Driver Mutations In Uveal Melanoma, James J Dollar, Kisha D Piggott, Et Al.

2020-Current year OA Pubs

Uveal melanoma (UM) is an aggressive eye cancer that frequently results in metastatic death despite successful primary tumor treatment. Subclinical micrometastasis is thought to occur early, when tumors are small and difficult to distinguish from benign nevi. However, the early genetic evolution of UM is poorly understood, and biomarkers for malignant transformation are lacking. Here, we perform integrated genetic profiling of 1140 primary UMs, including 131 small tumors. A clinically available 15-gene expression profile (15-GEP) prospectively validated by our group is more accurate than driver mutations for predicting patient survival. Small tumors are significantly more likely to be in earlier …

In The Mouth Or In The Gut? Innovation Through Implementing Oral And Gastrointestinal Health Science In Chronic Pain Management, Jo Nijs, Burel R Goodin, Et Al.

2020-Current year OA Pubs

Recent scientific advances point towards an important role for oral and gastrointestinal health in people with chronic pain. Poor oral health (e.g., periodontitis, tooth loss) is observed in subgroups of the chronic pain population, including abdominal pain, low back pain, fibromyalgia, and rheumatoid arthritis. In addition to poor oral health, studies have also revealed altered intestinal microbiota compositions in various types of chronic pain, including people with chronic low back pain, knee osteoarthritis, visceral pain, fibromyalgia, tinnitus, and migraine. While overweight/obesity contributes to the likelihood of gut dysbiosis, normal-weight individuals with chronic pain also more often present with poor gut …

Distributed 48 V Energy Nodes (D48en), Hieu Nguyen

Defensive Publications Series

This document introduces the Distributed 48 V Energy Node (D48EN) architecture, a modular approach to home and community-scale energy storage and power distribution. Unlike conventional DC microgrids that rely on a continuous shared bus, this architecture places independent 48 V battery nodes throughout a structure, each with its own point-of-load photovoltaic (PV) input and short-run DC distribution to nearby loads. Nodes are normally isolated electrically and do not form a high-power backbone. Instead, low-current redistribution links allow controlled, schedulable energy sharing between nodes. This configuration reduces wiring cost, improves safety, simplifies retrofits, and enables modular growth for both developed residential …

User-Customized Application Settings Using Customized Application Environments, Alexander Haubold, Clément Julliard

Defensive Publications Series

Software applications on user devices can be launched only in their default state or in a single user-configured state. This requires users to change the application state for individual use cases each time they launch an application. For example, a camera application may have multiple modes such as default, portrait, panorama, video, etc. and the user needs to switch from the default mode to other modes before using the application. This disclosure describes application containerization techniques that enable users to launch an application in any of a set of custom initial states associated with separate custom-labeled icons. Users can thus …

Satellite Service Provisioning Via Premium Pass Purchase, Thomas Nguyen, Sooraj Sasindran

Defensive Publications Series

This document describes techniques for selective satellite service provisioning. Users can opt for satellite services based on their specific requirements by purchasing a satellite service premium pass via advance purchase or on-demand purchase. Advance purchase happens when the mobile device is connected to the internet. The device is registered, and the satellite network acts as a roaming network. On-demand purchase is available when the device is out of cellular or Wi-Fi range and a non-terrestrial network (NTN) is found. Temporary satellite data is provided for completing payment during on-demand purchase. The service is suspended if the pass limits are exceeded …

Context-Aware Standby State And Context-Aware Boot With Low-Cost Hardware, Subrata Banik, Noga Smith

Defensive Publications Series

Avoiding latency in booting or waking a device requires keeping it on and connected at all times, resulting in poor battery life, frequent recharging, limited mobility because of the need for a connection, and higher costs. Sensor-based functionality for automatically triggering device start or wake by sensing human presence requires expensive sensors, does not identify specific users, generates many false positives, and lacks uniformity across devices. This disclosure describes implementation of a context-aware standby state and context-aware boot process with low-cost hardware integrated within a device. A device in the shutdown or suspended state can be switched to the context-aware …

Motion Gesture And Near-Field Communication Field Detection For Initiating Wearable Payments, Malcolm Kemeny, Sergio Alves, Michael Angermann, Andrew Chen, Annie Tran, Brian Julian

Defensive Publications Series

Some methods for making payments with a wearable computing device, such as a smart watch, can involve manual steps like waking the device and opening a payment application, which may introduce latency into the transaction process. The disclosed technology provides an approach for initiating payments by using sensor data to detect an indication of a user's intent to pay. For example, a system can analyze data from a sensor, such as an accelerometer, to detect a predefined motion gesture. The detection of this gesture, in combination with the contemporaneous presence of a near-field communication (NFC) field from a payment terminal, …

Unpacking Identity Work Mechanisms For A Person-Centered Approach To Business And Management Education, Carla Campana, Pablo Leao

International Journal of Teaching and Learning in Higher Education

We explore identity work among undergraduate business students who resist the identity prevailing in traditional business schools. The study investigates an educational program that fosters identity work, allowing students to add facets to their emergent identity. Through in-depth interviews, the researchers uncovered a process in which students resist the hegemonic identity of business administrators, seeking alternative experiences that redefine their identity. Our research contribution is two-fold. First, we extend the concept of identity workspaces by introducing three mechanisms: autonomy, a psychological safe space, and group embeddedness. These mechanisms enable students to engage in an identity work process and reidentify with …

2023u_Approved_Sm07_Nc_Math-4373-Financial-Mathematics, Undergraduate Curriculum Council

All Approved Curriculum

No abstract provided.

2023u_Approved_Sm08_Pm_Bs-Actuarial-Science-Curriculum-Update, Undergraduate Curriculum Council

All Approved Curriculum

No abstract provided.

2023u_Approved_Sm05_Cm_Bio-4373-4371-Animal-Ecology-And-Lab-Rev1, Undergraduate Curriculum Council

All Approved Curriculum

No abstract provided.

2023u_Approved_Sm06_Pm_Bs-Biological-Sciences-Emphasis-Pre-Professional-Studies-Rev1, Undergraduate Curriculum Council

All Approved Curriculum

No abstract provided.