Digital Commons Network^™

Guiding Wildlife: Evaluating Wildlife Exit Designs And Sensor Lights For Safer Highways In South Texas, Rupesh Maharjan

Theses and Dissertations

Roadside exclusionary fencing is more prevalent on highways to prevent wildlife-vehicle collisions. Although it can mitigate wildlife road mortality by limiting their access to the road, it can also create a barrier for wildlife stranded within the right-of-way. In State Highway 100 of Texas, the Texas Department of Transportation installed ten wildlife exits to allow wildlife to escape the fenced roadway, and a pair of sensor lights on 13 wildlife guards (WGs) to scare off target species (bobcats and coyotes) from crossing the guards and accessing the roadway. In this study, the effectiveness of three wildlife exit (WE) designs were …

Implementing Organic Fertilization Practices To Improve Aloe Vera Growth And Soil Health In The Lower Rio Grande Valley, Isaiah Edward Jaramillo

Theses and Dissertations

Aloe vera (L.) (Aloe) Burm. f., is valued for its applications across the cosmetic, medicinal, and food industries due to its leaf gel. In the aloe industry, the extraction of gel from leaves generates significant quantities of organic waste, which presents an opportunity to repurpose this material as an amendment in aloe cultivation. While Aloe is renowned for its resilience, understanding the feasibility of using these organic shavings as a soil fertility amendment in aloe production is critical. This research aims to identify sustainable fertilization methods for Aloe that can maintain and/or improve crop yield while enhancing soil health. This …

Proof Of Concept: Simulating Drone Tracking In A Border Security Context, Jose Ruben Espinoza

Theses and Dissertations

Worldwide availability of drone technology has risen to unprecedented levels within the past century due to its commercial availability. While there has been various positive applications of such technology, it has additionally found usage within security critical contexts. Specifically, there have been reports of illegal drug smuggling along the Mexico-United States border in which quadrocopter based drones have been used. Within our research we aim to showcase, as a proof of concept, that autonomous drone technology can be leveraged within a defensive approach via the usage of reinforcement learning and object detection for security critical contexts. To promote the importance …

Evaluation Of Polymerization Condition Reactions Of Methyl Vinyl Ketone For Hydrogen Storage, Rituborna Ghosh

Theses and Dissertations

Hydrogen is widely regarded as one of the most promising clean alternative fuel sources; however, its widespread adoption has been hindered by significant challenges related to storage and transportation. Various storage methods have been proposed and developed, with continuous advancements being made to address these issues. Among the most effective solutions is the utilization of polymers, which serve as safe and efficient hydrogen storage media. This work investigated the polymerization of methyl vinyl ketone using different ratio of monomer: initiator and monomer: crosslinker using N,N′-methylenebisacrylamide (MBA) as crosslinker and ammonium persulfate (APS) as initiator in a free radical polymerization mechanism. …

Thank You For Your Service, Dwayne Vega

Theses and Dissertations

This thesis offers an intimate exploration of my experiences as a soldier during two deployments to Iraq, describing everyday realities of military life. Rather than glorifying the battlefield with warrior myths, I focus on the emotional toll, survival, and the complex relationships among soldiers. My narrative traces the gradual development of PTSD and my eventual reliance on drugs and alcohol as a coping mechanism. Through this personal lens, the thesis seeks to challenge common misconceptions about the soldier's life, offering a raw and authentic portrayal of service, trauma, and the lasting effects it had on my life.

Theoretical Insights And Analysis Into Luneburg Lens, Aram Flores

Theses and Dissertations

Advancements in wireless communications necessitate innovative antenna designs for radar systems and satellite communications. The Luneburg lens, theorized by Rudolf Luneburg in 1944, is a gradient-index lens capable of focusing electromagnetic waves onto a point on its surface, offering potential improvements in antenna gain and performance. Access to the lenses, courtesy of Assured Space Access Incorporated, enabled me to research the lenses response, and specific design details remain confidential. Practical assessments of 3D-printed Luneburg lenses of varying sizes are limited, including factors such as lens alignment and focal point offset. This study investigates the performance of 6-inch and 13.25-inch Luneburg …

Examining The Impact Of Body Esteem And Cyberbullying Victimization On Mental Health Outcomes In College-Aged Women, Lorena Victoria Houghton

Theses and Dissertations

This study investigated the role of cyberbullying victimization, body image constructs, and social anxiety on depression and suicidal ideation among 396 college-aged women. The researcher hypothesized there would be an indirect relationship between various body image-related constructs and depression/ suicidality through cyberbullying victimization and that the relationship between cyberbullying victimization and depression/ suicidal ideation would be moderated by social anxiety. Moderated mediation analyses via bootstrapping revealed cyberbullying victimization significantly mediated the relationship between various body image-related constructs (appearance-related social media consciousness, body esteem, and internalization of body ideals) and suicidal ideation while social anxiety served as a moderator between cyberbullying …

Study Of Temperature Effects Of Glucose And Microwave Dielectric Dispersion Model, Ethan Grant Boone

Theses and Dissertations

In this study, the temperature effect of dielectric properties in various aqueous solutions containing glucose are examined. A design for a new testing chamber is introduced to provide improved conditions for testing to ensure accurate and precise measurements. A N-SMA Adaptor is used when obtaining dielectric characteristics of glucose solutions ranging 100-300mg/dl. Dielectric parameters are obtained adopting a modified Debye dispersion model. MATLAB is used to confirm coaxial dimensions are suitable fabrication designs using fixed dielectric parameters of air and water. Simulations and design models were implemented utilizing ANSYS High Frequency Structure Simulator and 3-D Modeler software to develop the …

Bayesian Lasso Regularized Quantile Regression And Its Applications, Priscilla Kissi-Appiah

Theses and Dissertations

Since the pioneering work of (Koenker and Bassett Jr 1978), quantile regression has been a popular regression technique that helps researchers investigate a whole distribution of the response variable. In addition, due to the quantile check loss function, it is robust against outliers and heavy-tailed distributions of the response variable and can provide a more comprehensive picture of modeling via exploring the conditional quantiles of the response variable. In this research, we study the lasso regularized quantile regression from a Bayesian perspective. We develop an efficient sampling algorithm to generate posterior samplings for making posterior inference by using a location-scale …

Examining Hispanic Beginning Farmers And Ranchers In The Rio Grande Valley Through A Community Capitals Framework, Perla Kimberly Schrock

Theses and Dissertations

While existing literature addresses the experiences of beginning farmers and ranchers (BFR), there is a notable gap in research focused on Hispanic beginning farmers and ranchers (HBFR). This study aimed at exploring the unique experiences of HBFR in a predominantly Hispanic region, the Rio Grande Valley (RGV), employed the Community Capitals Framework (Flora et al., 2016). I conducted 16 semi-structured interviews with HBFR and local nonprofit organizations and federal employees, complemented by participant observations. Through thematic and content analysis of the interview transcripts, findings revealed valuable insights into the livelihoods of HBFR. Despite HBFR facing significant challenges, this study demonstrated …

Leveraging A Community Of Practice To Advance Stem Education Reform And Promote Teacher And Student Self-Efficacy, Ruth Renee Colyer

Theses and Dissertations

This dissertation examined the impact of the CREST-MECIS community of practice on K-12 STEM teachers and undergraduate and graduate students, addressing the urgent need for innovative approaches in science education to meet the challenges of the 21st century. The study was grounded in response to three primary problem statements: 1) the significant learning losses and socio-emotional challenges stemming from the COVID-19 pandemic, 2) the inadequacy of traditional instructional methods in post-pandemic classrooms, and 3) the need for culturally relevant and inclusive teaching practices that acknowledge students’ lived experiences. Data were collected through pre- and post-interviews, survey analyses, and qualitative feedback …

Community Reintegration Of Previously Incarcerated Individuals From A Virtue Perspective, Cindy Noemi Hernandez

Theses and Dissertations

Community reintegration is one of the most important indicators that determine the success of previously incarcerated individuals’ rehabilitation. It is influenced by several factors such as support, attitudes, strengths, and virtues. One emerging area of study that can be related to community reintegration is virtue. The concept of virtue has received increasing attention in rehabilitation research, focused on how one’s virtuous pursuit of excellence improves well-being and adaptation (Kim et al., 2016). In that community reintegration is a type of life adjustment, virtue can be related to community reintegration. The present study examined community reintegration and perceived support of previously …

Challenges And Strategies In Science Learning: A Thematic Review And Meta-Analysis, Angelica A. Guanzon

Theses and Dissertations

This study thoroughly explores the relationships between the challenges faced by students and the alternative problem-solving strategies employed. By analyzing these connections, the research aims to offer a comprehensive understanding of how students address difficulties in science learning and the adaptive strategies they apply. Through this research, teachers can gain valuable understanding in adapting learning resources that successfully address diverse needs of students. By identifying specific challenges and correlating effective strategies, targeted interventions are designed to enhance the overall science learning experience. The study emphasizes the importance of a dynamic and adaptable teaching approach that caters to the evolving landscape …

The Role Of Hope In Recovery From Sexual Assault For Hispanic Women, Esmeralda Rivera

Theses and Dissertations

Despite a growing amount of academic literature, there is a lack of research examining the levels of hope in Hispanic women recovering from sexual assault trauma. This quantitative survey investigates hope in Hispanic women healing from sexual assault trauma. The Miller Hope Scale (MHS) examines the variations and correlations between degrees of hope and demographic, personal, and self-advocacy factors. The research employs the Trauma Symptom Checklist—40 to investigate the correlation between levels of hope and trauma among women who have undergone sexual assault. Ninety-one Hispanic women from a crisis center in the U.S. were recruited for the study. Descriptive statistics, …

Assessing Cover Crop Adoption Factors In The Rio Grande Valley Through A Social-Ecological Perspective, Mackenzie Feldman

Theses and Dissertations

Reducing agriculture’s negative environmental impacts is crucial for mitigating climate change (White, 2021). Cover crops– non-cash crops grown to benefit subsequent cash crops– can slow erosion, improve soil health, enhance water availability, control pests, and increase biodiversity. Despite these benefits, adoption rates remain low, prompting the USDA and other organizations to fund research on increasing their use. Most studies focus on the Midwest and Northeast, and emphasize individual factors over the relationship between structural factors and individual factors that impact farmers’ decisions to adopt cover crops. This USDA-funded study begins to fill this gap by exploring social-ecological factors and how …

Emotion Regulation From A Virtue Perspective: Applications For Individuals With Adverse Childhood Experiences, Maria Eugenia Palomo

Theses and Dissertations

The purpose of this study is to explore the contributory effect of Virtues in differentiating one’s ability to regulate emotion. Convenience sampling will be utilized to obtain a total of 102 participants who had adverse childhood experiences. Participants will be recruited via collaboration with local behavioral counseling agencies. Two behavioral health counseling agencies located in Hidalgo County, including Corazon Consulting, Inc. and A Better Tomorrow, LLC, have agreed to be part of the present study. The research packets used in this study consisted of two parts: 1) a demographic information form, and 2) a research questionnaire that includes three instruments …

Resonances Of Electrostatically Actuated Non-Uniform Mems Cantilever Resonator Of Constant Width And Linearly Varying Thickness, Rigoberto Flores

Theses and Dissertations

In this investigation the behavior of an electrostatically actuated non-uniform microelectromechanical (MEMS) cantilever resonator of constant width and linearly varying thickness is investigated. The cantilever resonator vibrates using soft AC voltage at near half the first natural frequency of the cantilever and near the first natural frequency of the cantilever, known as primary and parametric resonances, respectively. Bifurcation diagrams for the amplitude-frequency and amplitude-voltage response are obtained for both resonances. Two methods are used in this investigation, namely the Method of Multiple Scales (MMS) and Reduced Order Model (ROM) using up to 6 modes of vibration.

These methods are used …

Sustainability Of Military Values Post Military Service: A Quantitative Study, Jennifer Ann Jazinski

Theses and Dissertations

Military-to-civilian transitioning represents a multidimensional process of adjustment, encompassing mental and physical health, basic physiological needs, practical (e.g., employment), and cultural domains. The intent of this study is to examine the sustainability of military values (e.g., duty, integrity, ethics, honor, courage, and loyalty) post-military service and to identify whether reported levels of sustained military values impact veterans’ reported level of Quality of Life (QoL). This study will assess the impacts demographic variables (e.g., gender, ethnicity, relationship status, age, number of children, highest level of education, student status, employment status, comfort with finances, living status, county of residence). and military service …

Comparison Of The Effect Of Heavy Pulls Vs Light Powers On A Subsequent Clean In Trained Athletes, Luke Devirgiliis

Electronic Theses and Dissertations

The sport of weightlifting has been competed since the first modern Olympiad. Competition in weightlifting consists of 3 attempts the snatch and clean and jerk declared by the athlete and their coach prior to the starting of the lift. While waiting for the athlete’s lift, waiting periods can change and warm up attempts may need to be adjusted. Often, coaches prescribe either a complete “light power” or partial “heavy pull” repetition of the competed movement during a long wait. Previous literature indicates that a heavier stimulus may cause a “post-activation potentiation”, or “post-activation performance enhancement” effect on the subsequent lift. …

Detecting Anomalies In Dynamic Attributed Graphs: An Unsupervised Learning Approach, Austin Hamilton

Electronic Theses and Dissertations

Dynamic attributed graphs, which evolve over time and hold node-specific attributes, are essential in fields like social network analysis, where anomalous node detection is a growing area. Vehicular social networks (VSNs), a subset of these graphs, are ad hoc networks in which vehicles exchange data with one another and with infrastructure. In this dynamic context, identifying anomalous nodes is challenging but crucial for maintaining trust within the network. This work presents an unsupervised deep learning approach for anomalous node detection in VSNs. This model achieved an accuracy of 71% while detecting synthetic anomalies in a simulated network based on real-world …

Oh, But If I Had The Stars From The Darkest Night…, Kendra Jean Keefer

Theses

This paper explores how memory and loss interact with a yearning for home in the installation, Oh, but if I Had the Stars from the Darkest Night. Through sound, moving image, photography, mark-making, and poetry this thesis work explores universal themes of exile and migration, alongside the impact the current high stakes political climate had on one LGBTQIA+ teen and their mother, as they leave a home and extended family in North Texas to find sanctuary in Carbondale, Illinois. The natural world of Southern Illinois, with a focus on the lives of local white-tailed deer, becomes a mirror and a …

Enhancing Warning Signs Of Mental Health Literacy: Evaluating A Digital Base Intervention For Health Profession Students, Nashwa Ibrahim

Nursing

Background: Despite its importance, Mental health literacy (MHL) among nursing and other health profession students often remains inadequate, potentially impacting their future roles as healthcare providers. This inadequacy can lead to delayed or inappropriate care for individuals with mental health concerns, perpetuating adverse outcomes and increasing the burden on healthcare systems. Aim: To evaluate a digital-based intervention designed to enhance the warning signs of mental health literacy among health profession students. Design: A quasi-experimental, one-group pretest-posttest study design was used to conduct the current study. Methods: A non-randomized trial was conducted using digital mental health literacy intervention about the warning …

Relationship Between Nursing Care Provided For Children On Mechanical Ventilation And Their Clinical Outcomes, Marwa G. Abouheiba, Nehad S. Basiouny

Nursing

Background: Indication of mechanical ventilation are variable and diverse. It is required whenever the child is unable to maintain adequate alveolar oxygenation or ventilation. Objective: To assess the relationship between provided nursing care for children on mechanical ventilation and their clinical outcomes. Setting: The Pediatric Intensive Care Unit (PICU) of Alexandria University Children’s Hospital (AUCH)at El-Shatby. Subjects: Study subjects were included both nurses and children. The first part of the study are all nurses (30) worked at the previously mentioned setting were included this inclusion was regardless of their level of education and years of experience. The second part is …

Perceptions Of School Readiness Through The Lens Of Sel, Lisa Goncalves

Seton Hall University Dissertations and Theses (ETDs)

School readiness includes a range of competencies and is influenced by both parental beliefs and teacher perceptions. Despite its significance, only a small number of states have an established definition of school readiness, which raises questions about how well stakeholder understandings align and the effectiveness of parental activities in promoting school readiness. In New Jersey, significant investments are being made to expand early educational opportunities, emphasizing the critical nature of this topic. With no standardized definition of school readiness and given the gaps in existing research, it is essential to explore the alignment between parent and teacher perceptions of school …

Exploring The Contribution Of Mobile Money To The Well-Being Of Rural Tanzanian Villagers And Assessing Their Readiness To Adopt A Similar Model To Advance Their Healthcare Access An Exploratory Study, Sr. Magdalena P. Chubwa

Seton Hall University Dissertations and Theses (ETDs)

Background: Healthcare for rural villages in Tanzania has always been rudimentary. Lack of the infrastructure and poverty are among the many obstacles facing this population’s access to healthcare. While, the rise of telehealth has improved access to healthcare in many parts of the world, its use in rural Tanzania has been extremely limited to poor internet access. However, given the availability of non-internet connected mobile phones in rural Tanzania, the potential to use this devise to improve healthcare access exists. Individuals using mobile phones for financial transactions may be motivated to access healthcare via telehealth by using their non-internet connected …

Removing Methane Via Soil Amendments: The Legal Framework, Korey Silverman-Roati, Romany M. Webb

Sabin Center for Climate Change Law

Rapid and sustained reductions in human-driven methane emissions are critical to limiting warming in line with the 2015 Paris Agreement. Reductions in certain methane emissions, particularly from the fossil fuel sector, can be implemented cheaply and efficiently. Other forms of methane emissions, like those from agricultural sources, are more difficult to control. This fact, coupled with concerns that climate change could unlock significant additional natural emissions from tropical wetlands and melting permafrost, has increased interest in atmospheric methane removal (“AMR”).

AMR refers to human interventions to accelerate the conversion of methane in the atmosphere to a form that causes less …

Evaluation Of A Non-Metallic Dual-Port Expander For Intensity Modulated Proton Therapy, Kristen Mcconnell, Zachary Fellows, James Kraus, Mauricio Acosta, Joseph Panoff, Eduardo Pons, Alonso Gutierrez, Andrew Wroe

All Publications

Purpose: To provide a methodology for characterization of the technical properties of a newly developed non-metallic tissue expander for intensity modulated proton therapy.

Methods: Three tissue expanders (AlloX2-Pro: plastic-dual port, AlloX2: metal-dual port, and Dermaspan: metal-single port) were deconstructed, CT-scanned, and modeled in RayStation12A. A 165 MeV single spot was used to create RayStation dose planes, and the integrated depth dose profiles were calculated and the DR90 extracted to predict water equivalent thickness (WET). These predictions were compared to measurements taken with an IBA Giraffe MLIC. Native, water, and fully modelled overrides were compared for the AlloX2 Pro to quantify …

Making Social Interactions Accessible For The Blind And Low-Vision People By Detecting Emotions Through Vocal Tone, Facial Expressions, And Body Language, Gautham Krishna

Theses

Despite the thriving research in the field of accessibility, there are several niche area where there is a need for specific solutions. One such area is social interaction. Blind and Low-Vision people (BLV) are limited in identifying emotions through verbal communication alone, which is often biased and unreliable in certain environments. Prior research illustrates the importance of body language in expressions and articulates the mechanism behind human emotions. Drawing inspiratoin from such research and various studies that were focused on emotion recognition systems, our research focused on identifying a portable accessible solution for BLV that classified emotion based on multi-modal …

Design Of A Custom Embedded Replay Control Board For A Vintage Porsche, Christopher Heltz

Theses

Many industries rely on decades old software and electronics to run machines that are essential for America’s industry. These companies operate on the sentiment of “if it’s broke, don’t fix it”. This works great until something breaks, then these same companies are faced with a tough decision. Either replace the old software and electronics with modern solutions or fix the original electronics. Both options have their challenges, the first costs much more in the short term and will require many man hours to design a new solution however the latter will require finding the original documentation or having trained individuals …

Recast, Reform, Reshape: Surreal Figurative Painting, Keely Wu

Theses

This thesis explores the use of surreal imagery and the reimagining of historical subjects as a means to discuss complex ideas of identity. In this exploration, I chose to use the human figure as a vessel for expressing my own intimate viewpoints and experiences. Through a series of paintings, I investigate how the juxtaposition of human forms with non-human elements challenges conventional notions of gender and sexuality to empower marginalized perspectives. My Master’s degree started with my transition from commercial illustration to fine art. The study examines my evolution of thematic and stylistic choices, emphasizing the creation of new works …