Digital Commons Network^™

Sensing Using Angular Momentum Of Light: From Polarization To Optical Vortices, Mahdi Eshaghi

Graduate Thesis and Dissertation 2023-2024

Light is a powerful tool for probing a variety of physical phenomena. This dissertation explores some of the complex properties of light, with a particular emphasis on its angular momentum, encompassing the concepts of polarization and optical vortices that illustrate how light spins and orbits, respectively. The study includes a detailed examination of light polarization and introduces a number of innovative measurement techniques. It also extends the research on optical vortices by analyzing their interaction behavior with various types of inhomogeneous media. The comprehensive investigations are aimed at applications in sensing and communications.

Regarding light polarization, this dissertation presents a …

The Use Of Graphic Organizers On The Reading Comprehension Of High School Students, Beckylee Ramos Lorenzo

Graduate Thesis and Dissertation 2023-2024

This study seeks to identify correlation in the use of graphic organizers in reading comprehension of twelfth grade English language arts students. Specifically, this study seeks to determine if the use of graphic organizers in the teaching of reading has impacts on the reading comprehension of 12th grade English language arts students. The study intends to contribute to closing an information gap surrounding the effects of using instructional strategies such as graphic organizers in reading comprehension in a twelfth-grade English class. The research questions helped to guide this study in identifying descriptive statistics within PSAT reading comprehension scores during the …

Comprehensive Analysis Of The Intersection Between Cryptocurrency And Infrastructure Security, Ayodeji Adeniran

Graduate Thesis and Dissertation 2023-2024

Cryptocurrencies are experiencing a significant surge, with the total valuation surpassing two trillion US dollars at specific points. This remarkable growth is underscored by the existence of over 23,000 different cryptocurrencies as of 2024, according to CoinMarketCap. These digital assets aim to break down borders and enhance access to financial services, fostering a more inclusive global economy.

However, the swift ascent and widespread adoption of cryptocurrencies come with considerable risks. The growing popularity and promise of these digital assets have opened up new avenues for malicious actors. Cybercriminals are exploiting public infrastructures, the cloud, the metaverse, and various websites to …

What's In A Frame? Exploring State Policymakers' Conceptualization Of Human Trafficking., Alexis P. Tsoukalas

Graduate Thesis and Dissertation 2023-2024

Human trafficking within and across nations is a pervasive, insidious global criminal enterprise that endangers human rights and impedes social justice. Sex and labor are two fundamental types of human trafficking, but media and policies prioritize the former. Social work calls for empowering marginalized groups, and labor trafficking survivors—who are more likely women and immigrants of color—certainly fall into this category. Since 2003, every U.S. state has criminalized human trafficking, yet the issue persists. Most human trafficking analyses focus on federal or international, not state, policies.

Thus, this critical analysis aimed to explore how human trafficking is conceptualized at the …

A Causal-Comparative Study Of The Relationship Between School Shooter Typologies, Warning Signs, And Targeted School Violence, German R. Taveras

Graduate Thesis and Dissertation 2023-2024

This research explores the relationship between school shooter typologies, warning signs, and targeted school violence. The study's independent variables are school shooter typologies and warning signs, while the dependent variable is targeted school violence. The research wants to investigate whether a relationship exists between these variables. The null hypothesis states no relationship exists, while the alternative hypothesis suggests that a relationship exists. The research framework is based on Bronfenbrenner's Ecological System Theory, which helps understand how the environment and social interaction influence a child's development. The theory was influenced by Vygotsky's sociocultural theory—which focuses on the roles of human interactions …

Connecting In Crisis: Exploring Online Informal Communications In Florida’S Unemployment Struggle, Anna V. Eskamani

Graduate Thesis and Dissertation 2023-2024

The COVID-19 pandemic led to widespread unemployment, significantly impacting Floridians who faced delays and systemic issues with the state's unemployment system. This study examines crisis communication within a Reddit community, focusing on how individuals used informal communications to navigate the unemployment benefits crisis. Guided by Rhetorical Arena Theory (RAT) and Uses and Gratification Theory (U&G), the research addresses: (1) How did individuals in the active audience discuss challenges faced when trying to access Florida’s unemployment system? (2) What lessons can be drawn from the analysis of informal communications on social media for improving crisis communication strategies during future crises? A …

Examining How Pejorative Stereotypes About Black Women Shape Their Experiences In Physics Ph.D. Programs, Camille A. Coffie

Graduate Thesis and Dissertation 2023-2024

This research study is part of a larger study that examines the experiences of Black women in physics graduate programs to identify priorities for departmental change initiatives to remove structures that keep out and/or push out Black women. This research also reinforces the ongoing necessity to raise awareness about the impact of stereotypes on how Black women are perceived and how stereotypes affect the matriculation of Black women in physics graduate programs. Black women represent the lowest percentage of students in physics graduate programs and often contend with stressors like microaggressions, bias, and stereotype threats that impede their success and …

Sexual Assault Victimization In Virtual Worlds, Narim Lee

Graduate Thesis and Dissertation 2023-2024

The current dissertation investigated sexual assault victimization in virtual worlds – environments, where individuals engage through avatars, offering a deep level of immersion and interactivity. As the usage of these virtual spaces grows, so does the concern for negative experiences that mirror the sexual assault encountered in the physical world. Despite this, there is a notable gap in the quantitative analysis of virtual sexual assault (VSA) victimization. This research aimed to fill this void by exploring the prevalence of VSA victimization over the previous year and identifying potential predictors of VSA victimization through the lens of cyberlifestyle-routine activity theory. To …

Optical Seed Development For Yb-Fiber Laser, James G. Brutus

Graduate Thesis and Dissertation 2023-2024

Master Oscillator Power Amplifiers (MOPA) are laser systems that utilize a seed and pump amplification system to boost the output power of high-quality lower power seeding signals. MOPAs can generate high gain while avoiding many of the nonlinearities that negatively affect resonance-based lasers that are known to feature higher internal intensities. Additionally, MOPAs provide an easy alternative to the construction of novel laser technologies for higher output power as they can be easily combined with existing laser sources to amplify their output power.

This thesis outlines the design of an ytterbium-doped fiber laser (YDFL), featuring a MOPA architecture. The YDFL …

Three Good Things To Improve Dementia Caregiver Outcomes: Feasibility, Nicole V. Mcclure

Graduate Thesis and Dissertation 2023-2024

The current study investigated the feasibility of utilizing a positive psychology strategy, Three Good Things, for dementia caregivers who at times may be limited in their ability to access resources due to caregiving role demands. The experimental task asked participants to list three things that went well for the day and their role in these events. Participants were randomized into a control or experimental group. The study was conducted on a sample of self-identified dementia caregivers (N = 45) to help reduce negative outcomes such as depression, burden, burnout, and negative affect. Further, variables thought to be influenced by increases …

Effect Of Acetate And Cell Density On External Proton Supply For Chlamydomonas Reinhardtii Biohydrogen Production, Keval V. Patel

Graduate Thesis and Dissertation 2023-2024

Green microalgae can naturally produce renewable hydrogen gas (H₂) in anaerobic environments by expressing hydrogenase enzymes (HydA). However, H₂ production from microalgae remains low and challenging because HydA are only active in low O₂ conditions. One practical strategy for creating an anaerobic environment is by adding acetate which can disrupt the oxygen evolving complex (OEC) causing the microalgae to switch to respiration of acetate until O₂ is completely depleted. However, by disrupting the OEC, a rich source of protons (H⁺) from water splitting is lost. This may make H⁺ into a limiting …

A Paradoxical Tale: Sodium Taurocholate Counteracts Bactericidal Potency Of Silver-Modified Cerium Oxide Nanoparticle (Agcnp), A Sporicidal Disinfectant Against C. Difficile On Abiotic Surfaces, Deepa Shah

Graduate Thesis and Dissertation 2023-2024

The nosocomial pathogen Clostridioides difficile colonizes the gut leading to antibiotic-associated diarrhea, and severe inflammation. C. difficile spores—the main agent of transmission—survive for months on contaminated surfaces. Common disinfecting agents such as bleach and peroxides are used to prevent this; however, these chemicals are highly corrosive, toxic and pose serious health concerns. Seeking to address the challenges posed by conventional disinfectants, our research tested the feasibility of redox-active, silver-modified cerium oxide nanoparticles (AgCNP) formulations as a safer alternative. We tested the efficacy of AgCNP in rich culture media on C. difficile NAP1, a known hypervirulent strain associated with hospital endemics, …

Examining The Impact Of A Video Review Guide On Robotic Surgical Skill Improvement, Mary Mansour Soliman

Graduate Thesis and Dissertation 2023-2024

Surgical education has the arduous task of providing effective and efficient methods of surgical skill acquisition and clinical judgment while staying abreast with the latest surgical technologies within an ever-changing field. Robotic surgery is one such technology. Many surgeons in practice today were either never taught or were not effectively taught robotic surgery during training, leaving them to navigate the robotic learning curve and reach mastery independently. This dissertation examines the impact of a video review guide on improving robotic surgical skills. Using Kolb’s Experiential Learning Theory as a framework, the literature review argues that video review can be used …

Youth Mental Health First Aid Training: Exploring Implementation Factors Of Delivering Training In Florida Schools, Lakaysia Smith

Graduate Thesis and Dissertation 2023-2024

To address the concern of school violence and mental health, the state of Florida implemented a statewide mandate requiring school personnel to be trained in strategies to identify and respond to the mental health needs of students. Existing research supports the effectiveness of Youth Mental Health First Aid (YMHFA), the training program selected by the Florida Department of Education to implement in public schools. To date, limited research has explored the implementation experiences of YMHFA trainers. This qualitative descriptive study explored trainers’ experiences implementing YMHFA within school settings. Semi-structured interviews were conducted with 18 YMHFA trainers employed in Florida public …

The Role Of Medical Cannabis Use In Pain, Sleep, And Mental Health Outcomes Among Older Adults, Madison H. Maynard

Graduate Thesis and Dissertation 2023-2024

Older adults represent the fastest growing demographic of cannabis users, and they endorse cannabis use for a variety of reasons including modulation of chronic pain, mental health symptoms, and sleep concerns. Despite escalating patterns of use, current evidence leaves questions of efficacy unanswered among these groups of users. Goals of the present study were to examine the role of medicinal cannabis within subjects at the daily level on the interrelated symptoms of depression, anxiety, sleep, and pain. A final sample of 106 medical cannabis users were recruited nationwide, ranging from 55 to 74 years of age (66.67% female, 82.86% white). …

The Effects Of Sexual Assault On Identity And Interpersonal Relationships Among Male And Female Victims, Ishara Jean-Francois

Graduate Thesis and Dissertation 2023-2024

The current study aimed to examine the effect of sexual assault on identity and interpersonal relationships. Although previous studies have examined the connection between sexual assault and interpersonal relationships following assault, there is a lack of research that examines possible gender differences. Further, the effect of sexual assault on identity has been understudied. Male victims are less likely to report their assault for various reasons. Therefore, it is important to focus on this demographic so their stories and experience do not go untold, and they can get the proper help and resources. College students (N= 505) completed an anonymous online …

Adapting Models For Florida’S Public Secondary Schools: A Case Study Of Collegiate Writing Centers, Erin M. Shorthill

Graduate Thesis and Dissertation 2023-2024

While working for four years in a college writing center, often with dual enrolled high school students, I began asking myself why our local high schools do not have writing centers of their own. The effectiveness of writing centers in helping students advance their critical thinking and written communication skills is well documented, and yet students of diverse geographical locations and socio-economic status often arrive at college under-prepared for the rigor of academic written discourse. Employing a combination of institutional analysis and constructivist grounded theory, I conducted case studies on three Florida college writing centers, focusing on staffing models, training …

One Click From Conflict: Some Legal Considerations Related To Technology Companies Providing Digital Services In Situations Of Armed Conflict, Jonathan Horowitz

Chicago Journal of International Law

Private technology companies (tech companies) are increasingly providing their digital goods and services to clients living and working in situations of armed conflict. Tech companies may own, operate, or maintain significant portions of the digital infrastructure that allow day-to-day essentials—such as water, medical care, and electricity—to reach civilians living in places affected by armed conflict. They may own communications platforms that people use to call emergency services. They may own social media outlets that organizations rely on to inform communities in need about access to humanitarian services or that families use to maintain contact with each other. Those fighting today’s …

Reconceptualizing Presidents' Clemency Power Under The Framework Of Human Rights: The Right To Seek Capital Clemency In Taiwan, Mao-Hong Lin

Fordham International Law Journal

The incorporation of the International Covenant on Civil and Political Rights into Taiwan’s domestic law provided death row inmates with the legal basis to submit requests for the President’s mercy. However, Presidents have persistently ignored these requests without any response to the inmates, and the judiciary regularly dismissed the cases of the inmates by rendering decisions in support of the Presidents’ inaction. The court justifications for these decisions were that the clemency power falls under the executive prerogative, and that it is a political question in nature and therefore not subject to judicial oversight. This Article argues against these justifications. …

The International Trade Law Implications Of Regulating E-Cigarettes: Lessons From Tobacco Litigation, Genevieve Wilkinson And Elizabeth Sheargold

Fordham International Law Journal

No abstract provided.

The Stupa Amaravati Of India: Where British Common Law Controls The Repatriation Of Cultural Property, Francesca Zepeda

Loyola University Chicago International Law Review

Repatriation of cultural property currently in the hands of the British Museum has been the topic of intense debate for decades. Activists argue for the return of the cultural art to its country of origin and to abide by international law for the protection of art antiquities. The British Museum and their supporters argue to maintain the status quo. The Amaravati Stupa, an Indian antiquity made of hundreds of pieces from a Buddhist temple excavated by British colonists, is one of the pieces the British Museum continues to possess and own. The Indian government has requested its repatriation. In the …

Deadly Journeys: Climate Change, U.S. Border Enforcement, And Human Rights, Julia Neusner

Case Western Reserve Journal of International Law

Extreme weather events and slow onset disasters, exacerbated by climate change, are increasingly driving global displacement. As displaced people seek cross-border protection in unprecedented numbers, the United States has responded by tightening border controls and restricting asylum access. These policies have exposed migrants and asylum seekers in transit to greater risks of injury and death due to the impacts of climate change and climate-related disasters. Drawing on legal analysis, historical context, and firsthand interviews with people seeking U.S. asylum, this Article examines the implications of U.S. policies that limit freedom of movement and asylum access. The Article raises critical legal …

Climate Rights In Brazil And The United States: A Convergence In Contrasts, James R. May, Marcelo Buzaglo Dantas, Luciana Bauer

Case Western Reserve Journal of International Law

This Article offers three quick takeaways. First is the utility of rights-based approaches to climate change. As evidence of climate change grows, international and domestic law are rushing to keep pace. ...

Second is the value of borrowing. Courts look and listen to other courts. As the political processes at both domestic and international levels have failed to protect against climate change, whether by action or inaction, a growing number of courts—led by those in Brazil, the United States, and elsewhere—have tried to catalyze more robust and effective government responses. ...

Last is implementation. Without a strategy for operationalizing these …

The North Of Ireland During The Interregnum: A Gramcian Analysis Of Power And Crisis, Chris Ó'Rálaigh

Articles

The North of Ireland was induced in to existence over a century ago, yet the polity lacked societal-wide legitimacy. The outbreak of conflict in 1968 signalled the beginning of an interregnal period in which the old order was substantially challenged. Whilst the Good Friday Agreement was idealised as an end to this interregnum, Brexit has re-opened the battle for politico-ideological supremacy. This paper traces the contours of the hegemony-seeking strategies of the various political actors from 1968-present and assesses whether we are in the crucial and final phase of the organic crisis of the North of Ireland.

Ghazizadeh V. Coursera, Northern District Of California

Historical and Topical Legal Documents

No abstract provided.

Students' Perceptions Of Hospitality And Tourism Internships On Career Pathways: Transformational Versus Transactional Internships, Jessica L. Wickey

Graduate Thesis and Dissertation 2023-2024

Internships provide a platform for students to apply theoretical knowledge in a practical setting and to gain hands-on experience (Simons et al., 2012). Moreover, internships can help students build networks and connections within their chosen industry, which can later prove valuable in their career development. This qualitative exploratory study investigated students' perceptions of their hospitality and tourism internships on how they perceive their career pathways after completing an internship in a four-year degree program. For this study, a group of Junior and Senior hospitality and tourism university students from a major university were interviewed. The researcher utilized a phenomenological approach …

Cultivating Green Public Spaces And Backyard Gardens Amid Covid-19: An Anthropological Study Of Metro-Orlando Gardeners, Chelsea N. Daws

Graduate Thesis and Dissertation 2023-2024

This dissertation critically analyzes home and community gardens within Metro-Orlando by considering the ways that the COVID-19 pandemic impacts residents' garden participation and access to green public spaces. The study utilizes an ethnographic approach to produce informed understandings of participants' experiences within local gardens, alternative food networks, and community supported agriculture analyzed using Marxian theoretical frameworks. Findings are primarily grounded in qualitative information derived from interviews, participant observation, and photovoice. Data were collected both prior to the global COVID-19 outbreak and over subsequent months of lockdown and public health mitigation measures. Primarily focusing on local community garden organizers, community garden …

A Meta-Analysis Of Cannabis Research: Is There Evidence Of Lasting Neurocognitive Effects?, Mark J. Crisafulli

Graduate Thesis and Dissertation 2023-2024

Cannabis use in the United States has generally increased over the past decade as more States have legalized recreational use. In conjunction with changes to the chemical makeup, which has made available cannabis more potent, the long-term effects experienced by cannabis users may have changed, and more individuals may be effected. The current study replicated the methods used in Schreiner & Dunn (2012) and Grant et al. (2003) to conduct a meta-analysis examining the neurocognitive effects of cannabis after abstinence lasting a period of at least 25 days. Previous research has found mixed results, with some studies finding significant differences …

Giving Voice To The Voiceless: Health Communication And Female Fieldworkers In Central Florida, Sofia Salazar

Graduate Thesis and Dissertation 2023-2024

This qualitative research project examined health experiences of female agricultural workers in central Florida. Specifically, this study identified the most common physical and mental health illnesses and issues reported by female agricultural workers, their health-related decision-making processes, methods used to access health-related information, and the challenges they encounter when attempting to access health-related information, support, and services. In total, 21 interviews were conducted with women who had worked for at least one year as an agricultural worker in central Florida. The data was analyzed for emergent themes based on a codebook developed using the IDEA model as a theoretical framework. …

Internet-Of-Things Privacy In Wifi Networks: Side-Channel Leakage And Mitigations, Mnassar Alyami

Graduate Thesis and Dissertation 2023-2024

WiFi networks are susceptible to statistical traffic analysis attacks. Despite encryption, the metadata of encrypted traffic, such as packet inter-arrival time and size, remains visible. This visibility allows potential eavesdroppers to infer private information in the Internet of Things (IoT) environment. For example, it allows for the identification of sleep monitors and the inference of whether a user is awake or asleep.

WiFi eavesdropping theoretically enables the identification of IoT devices without the need to join the victim's network. This attack scenario is more realistic and much harder to defend against, thus posing a real threat to user privacy. However, …