Digital Commons Network^™

Numerical Studies Of Semiclassical Light Storage Using The Coherent Atomic Transfer Function, Zachary T. Johnson

Theses and Dissertations

Quantum communication through photons relies on photonic storage to preserve quantum states. However, when photons interact with matter, quantum information becomes distorted. A recently developed semi-classical analytical model predicts output light pulses from an electromagnetically induced transparency (EIT) system. Using the predictions, the model known as the Coherent Atomic Transfer (CAT) Function, is capable of predicting the stored pulse or reconstructing the original pulse. Using numerical convolution and deconvolution with the CAT function as an analog of the point spread function of Fourier optics can provide insights on the effects of EIT storage on the retrieved pulse. Blind deconvolution is …

What Counselors Say Matters For Supporting High School Newcomer Multilingual Learners As They Work Toward Graduation, Sonia Lucrecia Molina Openshaw

Theses and Dissertations

This thesis explores how high school (HS) counselors describe their work with newcomer multilingual learners (MLs). Using the lens of Yosso’s (2005) Community Cultural Wealth (CCW) framework to identify asset perspectives in their work with these students. They suggest specific supports and barriers impacting these students' academic and social success in school. Findings reveal that counselors often focus on addressing the immediate needs of HS newcomer MLs, such as language acquisition and academic readiness, but less frequently recognize the cultural, linguistic, and social assets students bring to their educational journey. Counselors highlight the importance of systemic supports, including onboarding processes, …

Post-Irradiation Fault Injection For Complex Fpga Designs, Nathan G. Baker

Theses and Dissertations

Fault injection is a common technique for estimating the impact of single-event upsets (SEUs) within the configuration memory (CRAM) of an FPGA design. Fault injection is typically conducted prior to a radiation test to evaluate the effectiveness of SEU mitigation techniques, estimate the FPGA design's behavior at the radiation test, and prepare the radiation test infrastructure. This thesis explores how fault injection can be used after radiation testing to reveal additional insight into an FPGA's behavior during a radiation test. A unique methodology, referred to as post-irradiation fault injection (PIRFI), was developed in which the locations and timestamps of CRAM …

Arabizi (Franco) In Egypt: A Study Of Features, Reasons, Attitudes, And Educational Influence Among Youth In Online Communication, Muhammad Wafa

Theses and Dissertations

This study explores the phenomenon of Arabizi (Franco) as it is employed by Egyptian youth in online communication, focusing on the sociolinguistic factors that influence language choice, particularly educational background. Through a mixed-methods approach, including quantitative analysis of an online questionnaire using inferential statistics and qualitative examination of text samples, this study investigates the most common language varieties used by Egyptian youth, the underlying reasons for Arabizi's adoption, attitudes towards its usage, and the salient features of this variety of online communication. The findings reveal that Arabizi is widely used among Egyptian youth from all educational backgrounds. It is especially …

A Multi-Model And Multi-Agency Approach To Expand The Flood Inundation Mapping Capacity Of The Us National Water Center, Samuel Jay Oldham

Theses and Dissertations

The most accurate numerical model for simulating flood extents of rivers has long been a subject of debate. While specialized models exist for specific hydraulic features, we advocate for the principle that the best model is the one the user is familiar with, has adequate data to support input requirements and limitations, and will consistently employ. To support this approach, we have developed a database schema optimized to store riverine flood inundation model output files. This schema is designed to assist U.S. cities, counties, states, and other flood management agencies in leveraging their existing model-generated flood maps, regardless of the …

Microfabrication Of Sic Using Femtosecond Lasers, Jared Eldon Payne

Theses and Dissertations

Silicon carbide (SiC) is a desirable material in a wide variety of semiconductor fields. The impressive thermal, chemical, and mechanical properties that make SiC an attractive material also make it very difficult to machine. New fabrication techniques are required to take full advantage of the potential of SiC. First, a new 3-dimensional (3D) non-line-of-sight (NLOS) fabrication technique using two-photon absorption is demonstrated in SiC. NLOS microchannels are shown with aspect ratios higher than 100:1. The process is the only method known, at this time, that can create truly 3D subsurface structures in SiC without direct line of sight to the …

Filipino American Parents' Experiences With The United States Special Education System: A Qualitative Study, Greyagail Custodio Surio

Theses and Dissertations

While there have been studies on Asian American (AA) parents' experiences with the U.S. special education (SPED) system, there have been no studies on Filipino American (FA) parents' experiences with the SPED system. As FAs are the third largest Asian group in the United States., there is a need for special education research to be conducted with this population. Interpretative phenomenological analysis (IPA) interviews were conducted over Zoom with FA parents of children receiving SPED services. Participants resided in various states in the United States (n = 10). Participants reported varied and nuanced experiences related to advocacy, working with the …

A Randomized Controlled Study Of Heart Rate Variability Biofeedback In An Older Adult Sample, Whitney D. Allen

Theses and Dissertations

Heart rate variability biofeedback (HRVB) is a controlled breathing treatment designed to increase the variation in consecutive heartbeats leading to improved regulation of one's autonomic nervous system thereby improving one's ability to self-regulate and maintain homeostasis. Changes in heart rate variability (HRV) are seen in those of increased age and lower HRV is associated with poorer outcomes (e.g., increased mortality, worse emotional functioning, cardiovascular risk factors). As such, older adults are a group that stands to benefit from HRVB principles. The current randomized control trial was designed to understand the impact of HRVB in an older adult population on resting …

Molecular Mechanisms Of Niemann-Pick Type C: Investigating Gene Expression, Lipid Metabolism, And Mitochondrial Dysfunction In Fibroblasts, Sarah Kim

Theses and Dissertations

Niemann-Pick Disease Type C (NPC) is a progressive lysosomal storage disorder characterized by the accumulation of lipids, particularly cholesterol, within cells, leading to severe neurological manifestations and developmental issues. This study employs RNA-seq to compare gene expression profiles between fibroblasts derived from a healthy individual and a patient with the NPC1 mutation. A total of 12,978 genes were analyzed, revealing 191 differentially expressed genes. Functional enrichment analysis disclosed significant associations with biological processes related to development, lipid metabolism, embryonic organ development, vascularization, and neuroinflammation. Additionally, the connection between mitochondrial function and lysosomal impairment was explored, revealing that NPC1 mutant fibroblasts …

Navigating Trauma: A Linguistic Exploration Of Bilingual Trauma Expressions, Amira Mahmoud Othman

Theses and Dissertations

This study explores the relationship between language, trauma, and emotional expression among bilingual Arabic-English speakers, focusing on code-switching patterns and euphemisms, and more broadly the emotional roles of native and non-native languages in trauma narratives. Through qualitative interviews with 20 Egyptian participants, the research reveals that code-switching serves as both a linguistic and emotional tool, allowing speakers to navigate trauma by creating distance or engaging more intimately. Such codeswitching patterns include the integration of English content words within Arabic structures, morphosyntactic innovations, and gender agreement applications, reflecting the creative adaptability of bilingual speakers in emotionally charged contexts, in line with …

The Legal Framework Of Foster Care In Egypt: A Gender Analysis Of Alternative Families And Patrilineal Structures, Amira Fadel

Theses and Dissertations

The thesis explores women’s legal representation and agency over their non-biological children, and how the foster care system in Egypt either reinforces or deconstructs existing gender roles. Hence from a sociological perspective, it accounts for foster and alternative care laws in Egypt and the amendments thereof, to examine social relationships against the backdrop of more conventional, biological families, and kinship relations. In simple terms, studying foster and alternative care laws in Egypt is crucial to grasp how non-biological families are shaped in comparison to the more conventional bonds within biological families and traditional kinship relations, while accounting for the Christian …

Like A Fish Outside The Sea: An Ethnographic Exploration Of Why And How Young Lebanese From El-Mina Migrate To Europe, Lea Farida Studer

Theses and Dissertations

Following the Thawra in 2019, Lebanon’s initial optimism for political change has given way to a harsh reality. The country, troubled by hyperinflation, deteriorating state services, and worsening living conditions, coupled with corruption and sectarianism, is seeing an increasing number of Lebanese seeking alternative futures abroad, including in Europe. Be it via regular or irregular pathways, young Lebanese adults have been leaving the country, their families, their friends – their homes.

This ethnographic Master’s thesis, which was conducted during the Summer of 2023 in El-Mina, a port city in northern Lebanon, delves into the aspirations and capabilities that drive young …

Cervical Cancer Screening And Hpv Vaccine Intentions: An Egyptian Population Assessment Through University Channels, Rita Hany Ebeid

Theses and Dissertations

Background: Cervical cancer remains a significant global health burden, disproportionately affecting low- and middle-income countries. While HPV vaccination and cervical cancer screening programs have shown promise in reducing incidence and mortality, access to these interventions remains limited in Egypt. The purpose of this study was to analyze female and male beliefs, knowledge of, and perceptions related to cervical cancer screening and HPV vaccination, and how these factors influence women and men’s intentions to respectively undergo or promote these behaviors in Egypt. This study also aimed to develop recommendations for more effective cervical cancer prevention measures that promote greater uptake among …

Mir-125a-3p And Its Targets: Promising Biomarkers For Ovarian, Liver, And Breast Cancers, Offering A Beacon Of Hope For More Effective Diagnosis And Treatment Strategies, Eman Kamaleldien Anwer

Theses and Dissertations

Cancer is a worldwide health problem with various genetic and epigenetic alterations, resulting in disease heterogeneity. Effective diagnostic, therapeutic, and monitoring markers have been determined recently; however, new diagnostic, prognostic, and therapeutic markers are needed. MicroRNAs (miRNA), short non-coding RNAs, have a highlighted role in cancer progression, migration, and programmed cell death. Our study aims to investigate the significance of miR-125a-3p and its downstream targets in breast (BRCA), hepatocellular (HCC), and ovarian (OVCA) malignancies and their possibility as diagnostic biomarkers and targets for therapeutic agents. Bioinformatics and online tools were used to determine the miRNA-predicted downstream targets, analyze GEO datasets, …

The Shift To Visual News Consumption: Exploring Egyptian Users' Motivations, Behaviors, And Perceptions Of News Values, Credibility, And Recognition On Instagram As A News Source., Hussein Battah

Theses and Dissertations

With the evolution of visual social media such as Instagram, news consumption and dissemination became different, focusing on Visual and Graphic content. With the current political and social-economic challenges in Egypt and the Region, such as The war in Gaza and the Egyptian economic crisis, the need for simple and immediate news updates became essential. Instagram has now satisfied that need among various users, specifically youth. This paper explores how consuming news over "Instagram" has influenced Egyptian users' perception of News Values and their definition of what to consider news. The paper also studies how several sources on Instagram have …

Locked Gates: Japan’S Immigration Quandary In The Face Of Economic And Demographic Realities, Merna Karam Emara

Theses and Dissertations

This study explores Japan's reluctance to accept labor immigrants in the post-World War II era through the analytical lenses of identity politics and historical institutionalism. It examines how Japan’s national identity, emphasizing ethnic homogeneity and cultural preservation, has shaped restrictive immigration policies despite its economic need. Historical institutionalism provides a framework for understanding the persistence of these policies, which are rooted in the institutional legacies of Japan's post-war reconstruction. The research investigates the interplay between identity-based motivations and the institutional structures that constrain policy changes, highlighting how these dynamics have led to the exclusion of foreign labor despite the country’s …

Rural Entrepreneurship In Upper Egyptian Communities: Exploring The Intervention Of Agri-Tech Startups, Marwa Wael Abohamda Hulail

Theses and Dissertations

Climate change and economic disturbance have changed the state of the world and increased the dependence on digitization in running people's daily life. In Egypt, the economic instability and climate change have affected people’s standard of living, making it challenging to sustain their life, especially in the agriculture sector. Farmers have been affected by the risks of climate change, economic shocks, and trends of digitization, which have impacted their profit, employability, and livelihood.

Several Egyptian Agri-tech startups were launched to support the farmers in the digital revolution that came to agriculture, attempting to make a change in the Egyptian farming …

Navigating Structural Barriers; Syrians In Cairo, Farah Hamdy Said Abdelghaffar

Theses and Dissertations

This research aims to study the strategies of refugees when they face structural challenges and barriers that hinder them from accessing their rights. The research shall analyze the relationship between the structure and agency of refugees and migrants in order to see how they act in the countries of asylum. The strategies and efforts of refugees will be analyzed in hosting communities that fill in the structural gap that refugees face. The study will focus on the Syrian population in Egypt and how they navigate their daily lives in the Egyptian context despite the lack of an asylum policy in …

The Role Of Non-Coding Rnas As An Innovative Therapeutic Tool For Hepatocellular Carcinoma, Nabila Mohamed Hosni El Kramani

Theses and Dissertations

Hepatocellular carcinoma (HCC) is the second lethal cancer worldwide, with over 60 million new patients added annually. Hepatitis B infection and toxins, e.g., aflatoxin, contribute to the incidence of HCC. Egypt and China show the highest prevalence of viral hepatitis and HCC in the world.

Long non-coding RNAs (lncRNAs) are non-protein-coding transcripts larger than 200 nucleotides. These transcripts work at the transcriptional, post-transcriptional, and epigenetic levels to regulate gene expression by interacting with various biomolecules, such as RNA, DNA, and proteins. They serve essential functions in chromatin remodeling and cell survival, differentiation, and proliferation. The role and biological interactions of …

Social Media’S Influence On Anti-Sexual Harassment Policies In Egypt (2014-2024)900, Yasmine Elleithy

Theses and Dissertations

The study examined the role of social media and women’s online activism in the development of anti-sexual harassment policies in Egypt, specifically from 2014 to 2024. Through employing a qualitative research method involving semi-structured, in-depth interviews, the study engaged different actors, including members of the parliament, the National Council for Women, female online activists, and women’s rights specialists. During this time frame, there has been a remarkable shift in the political, social, and legislative landscape, marked by significant restrictions on traditional activism and the enactment of laws addressing sexual harassment. Throughout this period of unprecedented changes, social media has emerged …

Internet Penetration And Firm Innovation In The Digital Era: A Sectoral Analysis Of U.S. Firms, Mariam Elgarf

Theses and Dissertations

This paper studies the effect of macro-level internet penetration on firm-level innovation in the United States, proxied by research and development expenditure. The IV approach is used to address the problem of potential endogeneity, covering data from 2000 to 2022 across five super industries: consumer goods and retail, energy and electricity, media and entertainment, financial services, and technology and telecommunications. The results show that internet penetration has a positive effect on the innovative performance of all sectors; however, this effect is more pronounced in the financial service and media sectors. Firm-specific characteristics also influence this relationship, such as debt-to-assets ratio, …

Interfacial Phenomena In Molten Salt Systems And Wetting Transitions In Microcavities, Aaron Essilfie

Theses and Dissertations

Interfacial phenomena are the processes that occur at the interface between two phases of matter: solid-liquid, solid-gas, liquid-liquid, and liquid-gas. Wetting, spreading, adsorption, and capillarity are some features of interfacial phenomena. This research explores two areas of interfacial phenomena: the interfacial tension between a liquid and gas, and wetting transitions in microcavities. Surface tension has been a widely studied topic in surface chemistry. Many techniques have been employed to study the surface tension of liquids in various studies and research areas, but the interfacial tension between a liquid and gas has not been extensively researched. For this reason, part of …

Tailor-Designed Oxalic Acid-Crosslinked Poly(Vinyl Alcohol)/Chitosan Biodegradable Films For Active Food Packaging Applications, Reem Hazem Fathy Anwar Elaasar

Theses and Dissertations

Food packaging plastic waste is posing great threats to ecosystems, human health, and the planet's overall sustainability; therefore, research has been directed towards the fabrication of biodegradable food packaging materials. In this study, active and biodegradable oxalic acid (OA) crosslinked poly(vinyl alcohol) (PVA)/chitosan (CS) composite films of different weight ratios were synthesized via the solvent casting technique and their food packaging properties were investigated. Owing to its water resistance and antibacterial superiority, the composite film with the ratio of OA chemically crosslinked PVA/CS 80:20 was elected to be coated with green tea extract (GTE) to ameliorate its antibacterial and antioxidant …

Copyright Law And Metaverse: A Comparative Study Of Challenges And Opportunities Of The Egyptian Copyright Law Entering The Virtual Era, Ayat Khalaf

Theses and Dissertations

Metaverse invokes legal challenges of Intellectual Property Rights in a limitless world of imagination for both entertainment and business aspects. The virtual world requires special devices and technologies to be accessed such as VR (virtual reality) and AR (augmented reality) appliances. The creation and protection of these devices cannot operate without patents. Besides, the protection of their software and platforms goes through copyright protection. Moreover, this imposes a non-traditional sense of trademark protection for new categories of goods and services. The peculiarities of copyright in the metaverse lie in two main challenges: firstly, copyright in the virtual world is usually …

Adapting Biological Mechanisms Into Machine Learning Structures And Gradient Propagation, Hao Yu

Theses and Dissertations

As neuromorphic computing gains traction, researchers look for learning schemes that are more suitable for brain-like structures. Although many algorithms have been discovered, such as surrogate gradient or Spike Timing Dependent Plasticity, those algorithms are either unsuitable for on-chip training or not biologically aligned. The goal of this thesis is to discover a learning algorithm which is biologically aligned and suitable for on-chip training. Through the discoveries of our two papers, we are able to introduce the concepts of synaptic clefts and neurotransmitters into a common spiking neuron network. We also designed an error propagation method aligning with biology. With …

A Collective History On Arkansas Regional Organ Recovery Agency (Arora) And Their Adaptation To Donation Culture, Tara Jones

Theses and Dissertations

Arkansas Regional Organ Recovery Agency (ARORA) is continually addressing the organ shortage in Arkansas by increasing organ and tissue donation rates in Arkansas. Hospitals, Funeral Homes, and other referral partners collaborated with ARORA in their efforts to increase organ and tissue donation. Interviews from former and current ARORA employees, along with data analysis, highlight how ARORA worked to honor Arkansans decision to be a registered donor while also improving the procurement of organs. The findings reveal how ARORA adapted to donation culture related to public, cooperation with referral partners, among other barriers to create ARORA’s mission of “Restoring Lives” This …

Bridging The Gap: Analyzing Volunteerism Barriers To The International Humanitarian Ngos In Egypt, Heba Fouad

Theses and Dissertations

In Egypt, volunteerism, within international humanitarian non-governmental organizations (NGOs), functions in distinctive characteristics influenced by, among other things, cultural, educational, and economic factors. NGOs face challenges and obstacles in attracting motivated volunteers, engaging and training volunteers, as well as managing the staff-volunteers relationship, and implementing adequate human resources (HR) policies and strategies. In this context, this thesis seeks to bridge the knowledge gap of volunteerism challenges in Egypt, delving deep into understanding the barriers existing within the international humanitarian NGOs that directly and indirectly influence its volunteer engagement levels. The thesis also aims to understand the successful implementation of policies …

Using Unmanned Aerial Vehicles To Facilitate Traffic Incident Management, Adam William Hill

Theses and Dissertations

Incident management teams (IMTs) minimize crash impacts and create a safer highway network for people and communities. Research has shown that optimizing the IMT fleet has strong benefits to the roadway network, but future models indicate that increasing IMT presence may have diminishing returns after excessive roadway saturation. The Utah Department of Transportation (UDOT) would like to improve situational awareness in areas of poor or limited camera coverage, where situational awareness is typically poor. UDOT is considering the use of unmanned aerial systems (UAS) to provide live camera coverage of traffic conditions in these instances. This thesis synthesizes practice from …

A Qualitative Program Evaluation Of A Community College Mentoring And Advising Initiative For First-Time, Full-Time African American Men, Duane Westley Reid

Theses and Dissertations

Duane W. Reid A QUALATATIVE PROGRAM EVALUATION OF A COMMUNITY COLLEGE MENTORING AND ADVISING INITIATIVE FOR FIRST-TIME, FULL-TIME AFRICAN AMERICAN MEN 2024-2025 Monica Reid Kerrigan, Ed.D. Doctor of Education This study examines the experiences of African American male students within the Operation Achievement initiative at Unique College, a community college in New Jersey with an enrollment of over 8,000 students across its four campuses, located in both urban and suburban settings. The educational challenges faced by African American male students have been widely researched, with many studies highlighting the risk factors that hinder their academic achievement. Variables such as race …

Investigating The Risk And Protective Factors Of Internet Addiction Among Adolescents Through The Lens Of Cognitive Behavioral Theory: A Cross-Sectional Study, Noura Shaltout

Theses and Dissertations

—Introduction: The Internet has become a central part of modern life, enhancing education, providing means of global communication, and facilitating access to information and entertainment. However, an attendant risk of excessive Internet use is becoming unconsciously addicted to virtual online activities, especially when large tech companies design their products in a way that makes them addictive to users. These companies have the tools and knowledge that allow them to manipulate and transform the behavior of their target audience. Thus, this study aimed to investigate the potential risk and protective factors for Internet addiction among adolescents. Methodology: This cross-sectional study employed …