Digital Commons Network^™

Ionic Nanomaterials And Doped Carbon Materials: Synthesis, Characterization, And Application In Cancer, Energy, And Environment, Samantha Paige Macchi

Theses and Dissertations

Materials is a crucial area of science which encompasses the design, synthesis, and application of various chemicals or other materials. Determining the relationship between materials’ physical, chemical, and photophysical properties on their performance is crucial to design the most optimal materials. This dissertation is focused on two types of materials: ionic liquids and heteroatom doped carbons as well as their various applications. Part A of this dissertation is focused on the development of various frozen ionic liquids (ionic materials, IMs) and nanoparticles derived from IMs as cancer therapeutics. The effect of various counterions on the photophysical and cytotoxic properties of …

Biopolymer-Coated Magnetite Nanoparticles For The Removal Of Emerging Contaminants From Aqueous Solutions, Hebatullah Farghal

Theses and Dissertations

Abstract

Biopolymers are gaining interest as promising materials for water purification due to their functionality, biodegradability, abundance, and safe use. In this work, three biopolymer-based systems were developed as adsorbents for removing emerging contaminants from water. The first system of biopolymeric nanocomposites was synthesized by coating chitosan/xylan biopolymeric nanocomposites on magnetite nanoparticles (CsXM) to facilitate their separation from water via a magnetic field. The prepared mesoporous CsXM nanocomposite was thermally stable and possessed a particle size of 11 nm and a neutral to slightly negative charge over the studied pH range of about 3 to 10. The nanocomposite efficiently removed …

Transfer Of Learning In Perception With Haptic Sensory Substitution Devices, Tyler Joseph Duffrin

Theses and Dissertations

Studies have shown that perceiving a given property of a wielded object requires task-specific sensitivity to the patterns of mechanical stimulation that support perceiving that property. The same is true for perceiving properties of the environment by means of a wielded object. Recently, studies using the Enactive Torch—a novel vibrotactile sensory-substitution device—have shown that these mechanical stimulation patterns are invariant across medium (Favela et al., 2018; 2021). The current study used a transfer of recalibration paradigm to the invariant patterns of mechanical stimulation that support perceiving surface distance by means of a wooden rod and by means of the Enactive …

A Machine Learning Model To Predict The Asd Traits And Challenging Behaviors In Children, Biswaranjan Senapati

Theses and Dissertations

A neurological disorder, along with several behavioral issues, may be to blame for a child's subpar performance in the academic journey (such as anxiety, depression, learning disorders, and irritability). These symptoms can be used to diagnose children with ASD, and supervised machine learning models can help differentiate between ASD traits and other behavioral traits in children, so that a correct diagnosis can be made. Autism usually shows up in a child within the first two years of life, but it can happen at any time. This research aims to create a model for predicting ASD traits and challenging behaviors in …

Morphogenetic Engineering Of Synthetic Protocell Systems, Qinyu Zhu

Theses and Dissertations

Observing and studying how life forms behave, i.e., their movement, adaptability, and so on, have enabled human beings to develop new technologies or optimize existing ones. One of the more noticeable phenomena in Nature is morphogenesis. Morphogenetic processes exist in different stages of biological development, from cellular division to tissue and organ formation. It is easy to observe shape development during mophogenesis due to emerging imaging techniques. However, it is hard to understand this process due to its complex organization, and the morphogenetic responses can be induced by a variety of chemicals or mechanical stresses and are subject to the …

Selection-Based Convolution For Irregular Images And Graph Data, David Marvin Hart

Theses and Dissertations

The field of Computer Vision continues to be revolutionized by advances in Convolutional Neural Networks. These networks are well suited for the regular grid structure of image data. However, there are many irregular image types that do not fit within such a framework, such as multi-view images, spherical images, superpixel representations, and texture maps for 3D meshes. These kinds of representations usually have specially designed networks that only operate and train on that unique form of data, thus requiring large datasets for each data domain. This dissertation aims to bridge the gap between standard convolutional networks and specialized ones. It …

Methods For Designing Compact And Deployable Origami-Inspired Flat-Foldable Spacecraft Antennas And Other Systems, Collin Ryan Ynchausti

Theses and Dissertations

There are times when it is desirable for devices to be stowed compactly, ``transported'' to the location of their desired use, and then deployed to another stable shape or configuration to perform their designed function. Origami-based mechanisms are beneficial in these cases due to their compact, folded nature and large deployments. Unlike traditional mechanical design, compliant mechanism and origami-based design approaches inherently have coupled characteristics, creating complex design problems. The research presented here discusses metrics, methods, and designs to aid in the design of origami-adapted and compliant mechanisms, focusing on the design case of deployable space systems. First, the hexagonal …

Investigating Speech Perception In Children With Speech Delay, Dyslexia, And Speech Delay And Dyslexia, Lauren Marie Spencer

Theses and Dissertations

Perceptual deficits related to phonology in children with speech delay (SD) and children with dyslexia have been identified in separate lines of research. However, there has only been a small number of studies that have investigated the perceptual deficits of children with SD and/or dyslexia in the same study to better understand the overlap of their speech perception abilities. Children with SD have previously shown deficits perceiving speech stimuli that is acoustically sparse, particularly when stimuli contain speech sounds they do not produce correctly. Yet in contrast to children with dyslexia, children with SD are better able to recover linguistic …

Black Autistic Men And Law Enforcement Interaction: Building Understanding Through Communication Training, Veronica Tess Myers

Theses and Dissertations

The primary focus of my project was to develop an autism-specific training to provide the LRPD Crisis Intervention Training (CIT) an understanding about autism and its associated behaviors including sensory processing disorder and temper tantrums versus meltdowns. This was done by way of a two-part exploratory pilot study. This first part is a needs-assessment to discover the experiences Black autistic men have had encountering law enforcement. The second part, my Autism 101 training plan which is based on the needs assessment determined by survey participants (caregivers of black autistic men) and interviews (more specifically community partner interview with Mallory Visser, …

Campus Safety And The Impact Of Emergency Alert Systems, Madelyn Elliott

Theses and Dissertations

The purpose of this quantitative study is to understand the impact emergency alert systems have on campus safety for Rowan University members using a quantitative survey. With a need to examine how universities and campus communities react to emergency scenarios, this study will focus on the reactions of those at Rowan University in Glassboro, New Jersey and how they respond to emergency alerts. Through the research completed, we will look into how community members of Rowan University view their safety on the Glassboro campus, the effectiveness of Rowan’s emergency alert systems, when Rowan sends out the emergency alerts, and how …

Contingency Management For Opioid Use Disorder: Early Treatment Adherence And Mood, Shelby Renee Goodwin

Theses and Dissertations

Opioid use results in potentially devastating consequences, but medications for opioid use disorder, such as buprenorphine, serve as effective ways to curb cravings and withdrawal, helping an individual reduce their use. Unfortunately, around half of patients discontinue buprenorphine treatment within 30 days and co-occurring conditions such as mood symptoms may serve as additional barriers and decrease engagement. This study sought to examine contingency management (CM; incentives for meeting behavioral goals) as a potential intervention to increase early treatment engagement, as well as the role of total depression, anxiety, and stress (mood) severity in the efficacy of contingency management. New patients …

Development Of A Modular Agricultural Robotic Sprayer, Paolo Rommel P. Sanchez

Theses and Dissertations

Precision Agriculture (PA) increases farm productivity, reduces pollution, and minimizes input costs. However, the wide adoption of existing PA technologies for complex field operations, such as spraying, is slow due to high acquisition costs, low adaptability, and slow operating speed. In this study, we designed, built, optimized, and tested a Modular Agrochemical Precision Sprayer (MAPS), a robotic sprayer with an intelligent machine vision system (MVS). Our work focused on identifying and spraying on the targeted plants with low cost, high speed, and high accuracy in a remote, dynamic, and rugged environment. We first researched and benchmarked combinations of one-stage convolutional …

Artemisinin And Its Derivatives Reactions: Characterization Of The Reaction Products Using Lc/Tof Ms, Kogila Vijayan

Theses and Dissertations

Artemisinin (ART) is a sesquiterpene lactone and a popular malaria drug with potential anticancer properties. In this work, LC/TOF MS was used to investigate the reaction of ART with DNA bases and estradiol. ART-deoxyadenosine and ART-deoxycytidine interactions were studied in the presence of Fe (II) ions. ART-deoxyadenosine and ART-deoxycytidine reaction mixtures gave chromatographic signatures that remained unchanged at room temperature but grew after incubation at 37°C. The change in temperature from room temperature to 37°C was the main driver of adduct formation in these reactions. ART was found to react with Fe (II) ions as observed from several new chromatographic …

Computational Study Of Foldamer-Based Water Channels, Shadi Houshyar Azar

Theses and Dissertations

One of the most serious global challenges of this century is water scarcity, stemming primarily from the growing demand for freshwater and the depletion of freshwater resources. Water desalination has the potential to address this problem, but current technologies are expensive and inadequate. Here, we present novel, computationally designed channels with high water permeability and selectivity against ions, inspired by natural water channels, aquaporins. Aquaporin's unique property of transporting water while rejecting protons and other ions has led to numerous studies on incorporating such channels into different membranes for water purification applications. However, use of an aquaporin-incorporated membrane is limited …

Algorithmic Fidelity And The Use Of Large Language Models In Social Science Research, Christopher Michael Rytting

Theses and Dissertations

In this dissertation, we argue that large language models (LLMs) exhibit a considerable amount of \textit{algorithmic fidelity}, a property where they have modeled ideas, behaviors, and attitudes of the population who generated their training data. This has important implications for social science, as this fidelity theoretically allows for the use of LLMs as effective proxies for human beings in experiments and research. We demonstrate this empirically in various social science domains (political partisanship, demographic surveying, voting behavior, hot-button policy issues, news media, populism, congressional summaries), in various applications (replicating social science survey findings, assisting in coding of text datasets, inferring …

The Impact Of The Tobacco-Free Policy On The Auc New Cairo Campus, Fatimah Badawy

Theses and Dissertations

In 2019, the American University in Cairo (AUC) conducted a research study on campus attitudes towards tobacco use and smoking behaviors within their community, in light of the then newly enforced tobacco-free policy. They found most campus members in support of the policy, with higher rates of disapproval from the smoking community. In 2021, this research aimed to follow-up on changes in attitudes towards the policy as well was smoking behaviors. It hypothesized that over time, levels of support to the policy would increase, smoking habits would be positively impacted and that positive health behaviors would correlate with policy support. …

Extracting Narrative Using Gpt-3 From Youtube Videos And Its Visualization, Mayor Inna Gurung

Theses and Dissertations

YouTube, the leading video-sharing social media platform, is home to a vast number of videos, with over one billion hours of content consumed daily. However, with 500 hours of fresh content added to the platform every day, ensuring the quality of the content has become a daunting task, making it challenging to prevent the spread of low-quality information. The manual review of malicious content by moderators is time-consuming and highlights the need for faster analysis and processing tools. This paper proposes a novel approach that utilizes Generative Pre-Trained Transfer-3 (GPT-3), with 175 billion parameters, to extract narratives from YouTube videos. …

Towards Optimal Operation And Control Of Emerging Electric Distribution Networks, Jimiao Zhang

Theses and Dissertations

The growing integration of power-electronics converters enabled components causes low inertia in the evolving electric distribution networks, which also suffer from uncertainties due to renewable energy sources, electric demands, and anomalies caused by physical or cyber attacks, etc. These issues are addressed in this dissertation. First, a virtual synchronous generator (VSG) solution is provided for solar photovoltaics (PVs) to address the issues of low inertia and system uncertainties. Furthermore, for a campus AC microgrid, coordinated control of the PV-VSG and a combined heat and power (CHP) unit is proposed and validated. Second, for islanded AC microgrids composed of SGs and …

Multicultural Mentor Texts In 2nd Grade Writer’S Workshop, Ellen R. Carbonaro

Theses and Dissertations

The purpose of this study is to investigate the effects of the utilization of relevant multicultural mentor texts during writer’s workshop instruction in the second-grade classroom. The specific aim is to understand how students relate these diverse texts to their development of literacy skills. This study is grounded in the theoretical frameworks of culturally relevant education and reader response theory. Upon data triangulation analysis, the following themes were identified: 1. Multicultural Literature Promoted Engagement with Literacy, 2. Multicultural Mentor Texts as a Guide for Writing, and 3. Writing as a Social Practice within the Writer’s Workshop Model. Implications regarding the …

High-Speed Photonic Signal Processing For Free Space Optical Stealth Communication And Interference Management, Yang Qi

Theses and Dissertations

This dissertation focuses on free space optical stealth communication and wideband interference management techniques. The coexistence of multiple high-speed wireless communication systems generates wideband interference, which poses a challenge to the contemporary framework of signal processing. To protect the security and privacy of users' communications, stealth communication techniques that hide and recover private information against eavesdropping attacks are necessary. The main challenge in stealth information recovery and interference management is to separate the signal of interest from noise and wideband interference [1]. This dissertation proposes and experimentally demonstrates various techniques for stealth communication and wideband interference management using photonic signal …

Leading Department Causes Of Acculturative Stress Among International Students At A South Jersey Public Institution, Meagan Kathleen Mcferren

Theses and Dissertations

The study in this paper was conducted at Rowan University, a South Jersey public institution founded in 1923. The purpose of this study was to collect data regarding various university departments that might cause and affect acculturative stress in international students and determine which area has the greatest impact on the students’ stress levels at the university. During the 2022-23 academic year, I distributed an anonymous online survey to the majority of Rowan international and domestic students, both undergraduate and graduate, to better understand their perspectives of specific campus resources and departments. In this paper, I state my questions as …

Importance Of Prioritization Of Health Care Data Quality In Managed Care Leadership, Grace V. Crossette-Thambiah

Theses and Dissertations

As we progress towards the fourth industrial revolution, where emerging technologies such as artificial intelligence, machine learning, and the Internet of Things (IoT) are becoming more dominant, the quality of data becomes even more crucial. These technologies rely immensely on data to generate insights and make accurate predictions. Poor quality data can lead to incorrect or incomplete insights, resulting in erroneous decision-making that can have significant consequences. It is essential that data quality is addressed early in the development of these technologies to ensure that they operate successfully and provide accurate insights that can lead to positive outcomes. As such, …

Development Of New Chemical Probes To Delineate The Polyamine Regulation & Molecular Strategies To Unravel Protein Polyamination, Vennela Tulluri

Theses and Dissertations

Polyamines such as putrescine, spermidine, and spermine modulate critical cellular processes, including gene expression and cell proliferation. Cellular polyamine regulation is a complex mechanism controlled by three different proteins: Ornithine decarboxylase (ODC), Antizyme (OAZ), and Antizyme Inhibitor (AZIN). While ODC is directly involved in polyamine biosynthesis, OAZ, and AZIN regulate the ODC activity via protein-protein interactions. The dysregulation of ODC, OAZ, and AZIN leads to elevated polyamines in numerous pathologies, making them attractive targets for controlling polyamine levels. Besides regulating polyamine synthesis, OAZ modulates polyamine transport. However, the precise mechanism remains elusive. In this research, we discuss our approach to …

Flexural Wave Manipulation By Non-Hermitian Planar Elastic Metasurface, Katerina Stojanoska

Theses and Dissertations

It has been demonstrated that metasurfaces with spatially asymmetric inner geometry exhibit unidirectional scattering effects, which can be used to control waves in a directional fashion. In this thesis, a planar Non-Hermitian elastic metasurface exhibiting unidirectional focusing of flexural waves is proposed. Asymmetrically loaded piezoelectric disks and metallic blocks comprise the unit cells. By using a negative capacitance shunting, a tunable material loss is embedded into the system. With suitable engineering of the induced loss profile, resonating building blocks are designed, which are capable of independently accessing unidirectional zero reflection. A planar metasurface is then created so that constructive interference …

Enhanced Throughput Of Aligned Polyacrylonitrile Nanofiber Manufacturing Via High-Speed Centrifugal Spinning, Jason Glen Ippolito

Theses and Dissertations

Centrifugal spinning is noteworthy due to its high fiber throughput rate compared to other nanofiber manufacturing platforms. It is capable of producing fibers in the nanoscale diameter range from a multitude of polymers, such as polyacrylonitrile (PAN). With a traditional centrifugal spinner, fiber can be rapidly spun and collected on static posts. However, the use of static posts inevitably forms a dense ring of fiber after a short period of time, and this fiber build up can halt the spinning process. In this work, the factors that influence the throughput and scalability of highly aligned centrifugally spun PAN fibers are …

The Intolerance Of Uncertainty: Transdiagnostic Connections Across Schizophrenia And Mood Spectrums, Obsessive Beliefs, And Physical Health, Sharanjit D. Pujji

Theses and Dissertations

The ways in which we classify mental health symptoms are closely tied to etiological understandings and interventions. While prominent diagnostic systems are categorical in nature, dimensional and transdiagnostic conceptualizations may provide increased precision and specificity that are more representative of “real-world” symptom presentations. The intolerance of uncertainty (IOU), an aversive state formed in reaction to the fear of the unknown, may have transdiagnostic value across mental and physical health. The current study sought to examine dimensionality across traditionally distinct symptoms and the transdiagnostic role of IOU across physical and mental health through the lens of the schizophrenia spectrum with an …

Integrating Data Science With Reliability Engineering: A Study Of Crucial Knowledge And Skills, Altricia Jordan

Theses and Dissertations

Data science, as a discipline can be used in any area. However, in order to utilize data science techniques, data scientist must be taught domain knowledge, referred to as a partner discipline, in the area with which the techniques are to be utilized. Using a quantitative analysis of publicly available information and survey methodology, this research developed recommendations for training data scientist in the partner discipline of reliability engineering. A text analysis was performed on reliability engineering job requisitions resulting in a set of knowledge and skills topics that organizations desire in reliability engineering hires. Using the results of the …

A Graph-Based Approach For Adaptive Serious Games, Nidhi G. Patel

Theses and Dissertations

Traditional education systems are based on the one-size-fits-all approach, which lacks personalization, engagement, and flexibility necessary to meet the diverse needs and learning styles of students. This encouraged researchers to focus on exploring automated, personalized instructional systems to enhance students’ learning experiences. Motivated by this remark, this thesis proposes a personalized instructional system using a graph method to enhance a player’s learning process by preventing frustration and avoiding a monotonous experience. Our system uses a directional graph, called an action graph, for representing solutions to in-game problems based on possible player actions. Through our proposed algorithm, a serious game integrated …

Representation In Higher Education: Does Representation Matter To Black And Hispanic Students, James Wright

Theses and Dissertations

The goal of this study was to investigate if there is a correlation between minority students retention and encountering, whether through teaching a course or having an advisor, minority faculty. Moreover, the study investigated how the minority students felt on a predominantly white campus. The subjects included were freshmen, sophomore, junior, and senior students who resided on-campus at Rowan University. The students data and information will be collected via an online survey. The findings of the data will consider the attitudes of minority students and if they feel that their experience would be different if they had more minority faculty …

Using Dual-Language Texts To Support Literacy For Emergent Bilingual Students, Amanda Dranchak

Theses and Dissertations

This paper provides a qualitative account of how linguistically inclusive curriculums can enhance literacy instruction. The specific aim of this study is to explore the impact on literacy instruction of emergent bilingual students when the curriculum includes dual-language texts. Methods of data collection include student interviews, text discussions, student work, and student self-assessments. The findings show that the dual language literature positively affected the emergent bilingual students. Students enjoyed increased levels of engagement and a high level of confidence in their reading abilities. The research demonstrates the value of a culturally and linguistically inclusive instructional environment. With the inclusion of …