Digital Commons Network^™

اﺳﺘﻌﻤﺎل اﻟﻌﻘﻮد اﻟﺬﻛﯿﺔ ﻓﻲ ﺳﻮق اﻷوراق اﻟﻤﺎﻟﯿﺔ: دراﺳﺔ تحليلية, ﻣﺤﻤﺪ ﺧﺎﻟﺪ إﺑﺮاھﯿﻢ

Theses

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Using Smart Contracts in Financial Stock Market: An Analytical Study

Smart contracts are considered one of the latest technologies that have obtained attention from many Legalists and Engineers. Smart contracts are a set of arrangements written via programming languages through computer programs or by programmers without the need for an intermediary. Smart contracts are self-executing. It executes once the terms and conditions agreed between the parties happen.

Perspectives differ among legalists about the legality of smart contracts. Some legalists consider these contracts as binding legal contracts, while others believe that a smart contract might be just a part of …

Faithful Representation Of Free Groups And Congruent Subgroups Of Sl3(Z), Julius Kurian

Theses

This thesis is concerned with the matrix representation of a free nonabelian group by matrices of size ≥ 3. We proceed from defining an equivalence class and then transitioning to free groups.We discuss in details the group G_n(k) which is the group generated by the matrices filled with first, (second, etc.) column, except for the intersection with the diagonal, and we have ones on the diagonal and zeros at the other places. The filled places are occupied by the same parameter k. An alternative proof for the known fact that G_n(3) is not …

Design Analysis Of The Structural System Of Alainsat-1 Cubesat By Simulation And Experimental Validation, Abdalla Saad Elshaal

Theses

This thesis presents the process of conducting the structural analysis of AlAinSat-1 CubeSat through a numerical solution using Siemens NX. AlAinSat-1 is a 3U remote-sensing CubeSat carrying two earth observation payloads. The CubeSat is scheduled for launch on SpaceX's Falcon 9 rocket. To ensure the success of the mission and its ability to withstand the launch environment, several scenarios should be analyzed. For the AlAinSat-1 model, the Finite Element Analysis (FEA) method is used, and four types of structural analyses are considered: modal, quasi-static, buckling, and random vibration analyses. The steps followed include idealizing, meshing, assembling, applying connections and boundary …

Increasing The Phytoremediation Efficiency Of Heavy Metal-Contaminated Soils In The Uae Using Endophytic Actinobacteria For Sustainable Agriculture, Archana Mathew Mathai

Theses

Pollution caused by heavy metals (HMs) is a major environmental concern worldwide. Human actions, agriculture practices and industrial activities can cause the release of HMs into the environment. Soil contamination with HMs may have negative effects on crops, thus disrupting the food chain and posing risks to human health. Lead (Pb) is a common pollutant found in the soil when at high concentrations. Conventional land remediation techniques depending on chemical and mechanical methods are quite expensive and would lead to long-term deterioration of the ecosystems, while phytoremediation can serve as an alternative, eco-friendly approach to restore the lands for agricultural …

Catherine Opie And Sally Mann’S Exploration Of Motherhood And The Domestic Sphere, Krista Rose Frohling

Theses

This paper analyzes the work of Catherine Opie and Sally Mann, white, contemporary artist mothers. Using the narrative and auto-ethnographic research methodologies and applying feminist theory, queer theory, and mother studies, this paper will investigate how contemporary photography is confronted with the work of artist mothers that utilize their mothering roles and status of mothers as a muse into their photographic work. The concept of truth in photography is explored in its role of playing into the visualization of the discomforts of representation within the work of the unseen mother in Sally Mann’s Immediate Family series and dismantling of stereotyped …

Menossance ™: Post-Maternity Strategies, Elizabeth Pursell

Theses

Inside the private lives of middle-aged women, significant suffering unfolds in silence. The universal “change” is shrouded in shame. The obstacles particular to women during midlife include physical, emotional, financial, professional, familial, and societal. Many suffer through the indignities of menopause while adjusting to an “empty-nest” (Gullette, 2002, p.554). Droves of middle-aged women are also part of the so-called “Sandwich Generation” (Hong, 2002, p. 358). They are sandwiched between the responsibilities of their children and their elders, all while tenuously balancing careers and menopause. As described in Umma’s Table, “The sandwichgeneration [is] impossibly caught between multigenerational responsibilities, navigating labyrinthine sociomedical …

The Invasive Bank Vole (Clethrionomys Glareolus); A Longitudinal Investigation Into Rodents And Their Pathogen Communities, Using The Irish Rodent Invasion As A Model System., Andrew Mcmanus

Theses

The recent emergence of zoonotic pathogens such as, SARS-CoV-2, Ebola and Mpox, have emphasised the necessity to study wildlife and their pathogens. A knowledge gap currently exists in longitudinal studies of biological invasions, which are needed to understand the change in pathogen communities caused as the invader becomes more established. The invasion of Clethrionomys glareolus in Ireland provides a unique model system to study these changes at different stages of the bio-invasion. This is due to the depauperate small mammal community in Ireland, identifiable source population, introduction point, and ongoing expansion of C. glareolus in Ireland. Extensive work has been …

Enhancing Pharmaceutical Waste Management: Insights From Pharmacists' Perspectives On The Drug Take-Back Program, Mona Daher

Theses

Pharmaceutical waste management is essential for mitigating environmental risks associated with improper medication disposal, with pharmacists playing a pivotal role in drug take-back programs (DTBPs). However, there is limited understanding of pharmacists' engagement, perceptions, and challenges within these initiatives. This study aimed to address this gap by investigating these aspects among licensed pharmacists in the United States. A mixed-methods survey was distributed to 2200 pharmacists, yielding 81 responses (3.7% response rate). The findings revealed that familiarity with DTBPs did not significantly differ by state or practice setting, but positively correlated with experience and perceived effectiveness. Interestingly, on-the-job learning emerged as …

The Optimisation Of A Customised Methodology For The Determination Of The Lime Requirement Of Irish Soils, Fionan Mackessy

Theses

Soil pH plays a pivotal role in agricultural productivity and environmental sustainability, influencing various soil processes crucial for plant growth and ecosystem functions. It is a master variable that affects the biological, chemical and physical properties of soil. Maintaining a correct soil pH – generally through the addition of a liming product - is central to sustainable and productive agriculture and therefore accurate determination of soil pH is a vital piece of information that is central to any soil lab test. However, the accuracy of any soil pH test will be dictated by a number of soil properties such as …

The Impact Of Reflective Writing On Instructional Strategies Development: A Mixed Method Study On Prospective English Language Teachers, Fatema Naser Alshehhi

Theses

Reflective writing is a process in which individuals critically examine their experiences, thoughts, and actions to gain understanding and improve their performance. This thesis investigates the impact of reflective writing on the development of instructional strategies among prospective English language teachers in the United Arab Emirates. The study also explores their perceptions of using reflective writing as a tool for teacher development. The study employed a mixed-methods approach and was conducted in two phases. The first phase involved collecting qualitative data, including document analysis of reflective writings and semi-structured interviews with three prospective teachers. In the second phase, a questionnaire …

Marketing Video Games To Aging Demographics: A Generational Profile Analysis, Brinna Louise Ball

Theses

Marketing video games to aging demographics like Baby Boomers, Generation X, and Millennials requires a unique approach by video game studios and consumer products divisions alike. The strategies employed for younger generations such as Generation Z and Generation Alpha differ from conventional methods, requiring a fresh outlook and a need for more innovative and inventive approaches. To comprehend the current aging audience more effectively, it's essential to examine four crucial factors: accessibility, exposure, media habits, and motivations to play video games. Examining these factors by generation, we can better grasp how to effectively market video games to these demographics. It's …

Paulus Potter’S Punishment Of A Hunter: A Study In Cultural Shifts, Moderation And Class, Taylor Brown

Theses

This paper proposes a new reading of the painting Punishment of a Hunter (1647-1652) by Dutch painter Paulus Potter through the lens of its unique position in seventeenth-century Dutch art with regards to allegory, human and animal caricature, human nature, class, and the influence of economic growth and complexity of class in Amsterdam. The painting consists of fourteen individual vignettes on one panel of wood. Utilizing socio-economic, political, historical and formal analysis, this thesis proposes a reading of the painting. A total of five chapters, each addressing key themes of the painting, will contribute to my main thesis asserting that …

Future-Proofing The Past: Artificial Intelligence In The Restoration Of Andalusian Architectural Heritage: A Case Study Of The Alhambra Palace, Granada, Spain, Kholoud Bader Hasan Ghaith

Theses

This thesis explains the contribution of artificial intelligence in heritage restoration as an icon of Andalusian architecture by using the Alhambra as an example. The task of sustaining heritage is increasing dramatically due to the accumulation of heritage assets and the need for modern and innovative operations to cope with preservation tasks. Therefore, this thesis reviews the role of artificial intelligence in improving the restoration operation to improve accuracy and efficiency. I applied the case study as a scientific methodology to explain this work to overcome scientific and subjective obstacles, such as scarce data and software integration while explaining the …

On The Use Of Gauge Functions To Obtain Convergent Power Series Solutions To Nonlinear Odes, Nastaran Naghshineh

Theses

This dissertation examines the power series solutions---and their analytic continuation via gauge transformations---of three classical nonlinear ordinary differential equations arising in fluid mechanics that are mathematically related by their large-distance asymptotic behaviors in semi-infinite domains. The first problem examines the influence of surface tension and gravitational forces to form a static air--liquid interface that intersects a flat wall at a given contact angle and limits to a flat pool away from the wall. The second problem considers the related configuration of an axisymmetric air--liquid interface formed when the flat wall is replaced with a right circular cylinder. In both problems, …

Frequency Multiplication Of Microwave Signals Via The Photonic Domain, Mohamed R. Maafa

Theses

Microwave signals play key roles in modern communication systems and frequency multiplication provide a way to create higher microwave-signal frequencies. Using the photonics domain to perform frequency multiplication can, in principle, take advantage of the low loss and high bandwidth features of the photonic domain. However, most research to date is limited by photonic system having too many active components, complicated means of frequency selectibility, and reliance on filters. I explore, model, and experimentally demonstrate new techniques of microwave signal multiplication, leveraging the notions of polarization diversity and multiplexing in the photonic domain. For doubling and quadrupling techniques, I demonstrate …

Advancing Cell Segmentation Methods Through An Innovative Technique And Systematic Evaluation, Yuxing Wang

Theses

In the biomedical field, downstream cell-level analysis is a crucial step for comprehensively characterizing cells' location, function, morphology, and phenotype, relying on the accurate identification of individual cells. Consequently, there is increasing interest in the high quality of identified cell boundaries for biologists or researchers. Currently, cell segmentation methods are categorized into two types: Image-based and RNA-based cell segmentation. However, these methods face significant challenges. For example, most image-based methods tend to identify cell nuclear boundaries rather than entire cell boundaries when only nuclear staining images are available, and their performance is affected by noise in images and training labels. …

An Integrated Framework For Video-Based Deepfake Forensic Analysis, Bashaer Mohamed Alsalami

Theses

Deepfakes are AI-generated synthetic media that use AI algorithms to mimic human faces, voices, and actions with high levels of realism. They utilize advanced machine learning and deep learning techniques to generate realistic synthetic media, making the distinction between real and fake content increasingly difficult. Deepfakes were initially developed for entertainment and creative applications. However, they are currently being misused in various domains, posing significant security and ethical challenges. These risks necessitate effective deepfake detection systems to mitigate potential harm and preserve the integrity of digital communication. Nonetheless, the existing detection methods are inadequate and lack a holistic detection mechanism, …

Methodology, Deployment, And Performance Of Pico Balloons In Antarctica, Todd Mckinney

Theses

During the 2022/2023 Antarctic summer, eight pico balloon flights from Neumayer Station III unveiled insights into Antarctic troposphere/stratospheric winds (9 - 15 km AMSL). The most impressive flight lasted an astounding 98 days, completing eight circumnavigations of the Southern Hemisphere. Flight data indicated zonal velocities from -50 to 250 km/hr and meridional velocities of ±100 km/hr, with total wind speeds from 2.0 to 270 km/hr. Pico balloons can ascend due to convection, altering their float density. They also drift further south than larger stratospheric balloons, reaching latitudes close to the south pole. This study showcases the transformation of budget-friendly party …

Enhanced Suppression Of Stimulated Brillouin Scattering In High Energy Fiber Lasers Through Novel Chaotic Phase Modulation, Zachary Helton

Theses

Stimulated Brillouin scattering (SBS) poses a significant challenge in the development of high-power, single-mode continuous-wave fiber lasers. SBS occurs when the laser intensity is sufficient to generate acoustic vibrations in the fiber, leading to the reflection of light and limiting the maximum achievable power. Spectral broadening of the laser linewidth is a common SBS suppression technique. This thesis presents a novel approach using sine waves phase-modulated by chaotically generated noise to achieve improved SBS suppression. Experimental results demonstrate that this method achieves flatter and broader optical linewidths compared to traditional white noise modulation, even at lower power levels. This approach …

Complexity, Grouping, And Similarity: Effects On Numerosity Estimations, Keighly Harris

Theses

This study looked at the effects of visual features like complexity, grouping, and similarity on numerosity estimations. I hypothesized that complex visual stimuli would be more difficult to accurately estimate than simple visual stimuli. Additionally, I hypothesized that stimuli that were visually similar or displayed in spread out, distributed patterns would have more accurate estimations compared to visually random or closely grouped stimuli. Lastly, this study was designed to assess the combined effects of these visual features on numerosity estimation accuracy. Participants were asked to briefly look at images displaying groups of items containing these visual features, estimate the number …

Application Of A Scale Resolving Turbulence Model To A Jet In Supersonic Crossflow, Noah Schwalb

Theses

The Partially-Averaged Navier-Stokes (PANS) methodology is applied to variable-density flow to derive the Blended PANS (BPANS) model. A supersonic jet-in-crossflow problem is numerically simulated using the BPANS model to show its capabilities in a variable-density flow with complex physics. The shock systems and vortex structures of this problem observed during experiments are numerically reproduced. The time-averaged Mach number and streamwise velocity contours show good agreement compared to LES and experimental data. The streamwise and wall-normal velocity profiles, wall pressure distribution along the flat plate, and trajectory of the jet are compared to LES and experimental data to show that BPANS …

Interlacing Unstructured Data With Deep Neural Nets For Predicting Pervious And Impervious Land Cover Types, Srivani Athmakur

Theses

This research delves into the intricate task of delineating land cover types in Tallahassee-Leon County and emphasizes the need for detailed granularity beyond existing classification systems. Utilizing cutting-edge GIS data, the study harnesses the power of deep learning algorithms, including U-net, UNetPlusPlus, FPNnet, and DeepLabV3Plus. A unique approach, ”Interlacing Unstructured Data with Deep Neural Nets,” integrates shapefiles and Tiff images to enhance classification metrics such as mean intersection over union, pixel accuracy, and loss functions. The research aspires to significantly improve the precision of land cover classification, holding implications for urban planning and environmental management. By innovatively integrating unstructured data, …

Modeling The Impacts Of Land Use/Land Cover Change On Hydrological Dynamics In The Belize River Watershed Using The Soil And Water Assessment Tool, Nina Copeland

Theses

Forest cover loss from land cover/land use (LCLU) change (LCLUC) can alter watershed hydrology. The primary goal of this study was to understand how LCLUC in the Belize River Watershed (BRW) impacted streamflow and related hydrological dynamics from 2000 to 2020 using the Soil and Water Assessment Tool (SWAT). The main objectives were to (1) calibrate and improve the accuracy of the SWAT model using in-situ streamflow data, (2) investigate the predominant LCLUCs leading to forest cover loss in the BRW, and (3) examine changes in streamflow and related hydrological dynamics in the BRW comparing four LCLU scenarios. Findings showed …

An Assessment Of Eastern Box Turtles (Terrapene Carolina Carolina) In North Alabama With A Focus On Ranavirus Prevalence And Urbanization, Emma M. Jordan

Theses

Eastern Box Turtles (Terrapene carolina carolina) are susceptible to many threats, including development, urbanization, and disease. A novel Ranavirus has been attributed to mortality in both captive and wild box turtles, including one known occurrence in a captive box turtle in Alabama, but no further assessment has been made. The aims of this study were to assess if Frog Virus 3-like Ranavirus infects wild box turtles and if its prevalence is related to urbanization in North Alabama, USA. I conducted visual encounter surveys in eight survey areas in North Alabama that occur across a gradient of urbanization and development. Twenty-six …

The Thought Of Getting Lost In Space, James Keffer

Theses

"The Thought of Getting Lost in Space" is a poetry collection that explores nostalgic memories and connections of relationships, whether they are new or old and forgotten, and attempts to weave them together in hopes of forming constellations. There are hesitations and fears, such as rejection, failing, or even doubting oneself, when reaching out to other people. Sometimes we even get lost within ourselves and forget how to self-love our own bodies. Constellations are these amazing and beautiful wonders in the night sky that depict stories of old, yet stories that still teach lessons. The most influential people are storytellers. …

Uncovering The Link Between Diabetes And Pulmonary Hypertension, Nishant Nundlall

Theses

Background

Diabetes is a common disorder in the general population with most studies focusing on its role on the left ventricle and coronary artery disease, however it effects on pulmonary hypertension (PH) have not been fully studied. There is a pressing need to more completely explore the cardiovascular impacts of diabetes. The impact of diabetes might vary according to the various forms of PH, their predominant contribution is likely to be in PH due to left heart disease (group II, the most common form of PH).

Thus far, most studies have offered a focussed perspective with data from specialised referral …

Challenging The Myth Of Consensus: Irish Australian Voices In Perth During The Great War Conscription Referendums, Alexander Mcclure

Theses

The controversial conscription referendums of 1916 and 1917 in Australia saw a resurgence of religious sectarianism and a perceived entanglement with the aftermath of political violence in Ireland. Examining the voting outcomes in all the Australian states for the referendums may suggest that Western Australia stood against the nationwide trend of rejecting Prime Minister William Hughes’s proposals for compulsory military service. Analysis over the last thirty years has challenged this idea, which is that Western Australia showed a unique, widespread consensus during the Great War period. A greater understanding has developed with the increasing digital accessibility of wartime primary sources, …

Optimising Care For Musculoskeletal Conditions To Reduce Burden On Hospital Emergency Department And Orthopaedic Services, Piers Truter

Theses

Worldwide health care systems are under increasing pressure due to aging amongst ever growing populations with increasing co-morbidity and treatment options (WA DoH, 2019). Furthermore, how people choose to engage with health care and access and literacy for health information is also changing, as is understanding of the factors associated with good health outcomes. These changes are driving evolution in health care delivery. There is a need for high quality and sustainable models of care accompanied by judicious evaluation of impact in terms of health services deliverables and the consumer experience of care. This thesis explores the feasibility and applicability …

Summer Critical Reading Initiative Helping Talent Search Students Redefine Their College Potential Through Literature, Tania Dominguez

Theses

Despite efforts to improve college access and develop college readiness skills, students are graduating high school unprepared for college. Each year, fewer students choose to enroll or drop out within their first semester of a post-secondary institution after high school graduation. The figures are even more dire for students who are from low-income and first-generation backgrounds. Furthermore, data shows that college-bound participants from federal pre-college TRIO programs are underserved in the most critical time of their high school journey. There is an educational gap in the services that pre-college programs, such as Talent Search, provide students. Educators and college counselors …

The Impact Of Rosenwald Schools On Black Communities In The Southern United States From 1912 - 1932, Kimberly Chapman

Theses

This is a story of Black people who transitioned from slavery to freedom, rising early in the mornings to work in the fields but also to get their children ready to walk miles to school. Many adults took night classes to learn the basics of reading, writing, and arithmetic. These simple things, such as knowing how to spell their names, had great meaning for formerly enslaved people, who wanted the opportunity to be identified by their names rather than a number or simply “boy” or “gal.” Some parents felt it was too late for them, but they were determined for …