Digital Commons Network^™

A Blockchain Based Policy Framework For The Management Of Electronic Health Record (Ehrs), Aysha Ali Mohammed Murad Qambar

Theses

The rapid development of information technology during the last decade has greatly influenced all aspects of society, including individuals and enterprise organizations. Adopting new technologies by individuals and organizations depends on several factors, such as usability, available resources, support needed for adoption benefits, and return on investment, to mention a few. When it comes to the adoption of new technologies, one of the main challenges faced by organizations is the ability to effectively incorporate such technologies into their enterprise solutions to maximize the expected benefits. For the last several years, Blockchain technology has become a popular trend in a variety …

Sludge-Based Activated Carbon: Characterization And Performance For Removal Of Methylene Blue From Aqueous Solution, Ahmad Anwar Al Madhoon

Theses

Domestic wastewater treatment plants in the United Arab Emirates (UAE) produce 122 thousand tons of dried sludge annually. About 70% of this sludge is dumped in landfills, creating water and soil contamination. Sludge is an energy-rich organic material that could be converted into activated carbon by thermal or chemical processes. Potassium hydroxide has shown great potential as an activating agent for producing high-quality sludge based activated carbon (SBAC). However, its use adds to the cost of the production process. Thus, there is a need for an alternative activating agent that is not costly. One possible chemical is carbide lime which …

Screening For Endophytic Actinobacteria To Enhance Growth And Salinity Tolerance Of Tomato Plants In The United Arab, Amira Hamdy Hassan

Theses

Salinity is one of the most decisive environmental factors limiting the productivity of crop plants, mainly in arid and semi-arid regions. An eco-friendly technology can be used to boost crop production in saline areas by using plant growth-bacteria. Endophytic actinobacteria that produce the enzyme 1-Aminocyclopropane-1-Carboxylic acid (ACC) Deaminase (ACCD) can modulate the levels of Ethylene (ET) in plants to reduce the effect of abiotic stresses including high salt stress. The main objectives of this study were to: (1) Evaluate endophytic actinobacterial isolates from healthy tomato plants cultivated in the UAE that are capable of producing ACCD in vitro; (2) …

Numerical Methods For Locating Zeros Of Polynomial Systems Using Resultant, Ayade Salah Abdelmalk

Theses

In this thesis, we modify two methods for locating zeros of polynomial systems which are one dimensional path following and Lanczos method. Both approaches are based on calculating the resultant matrix corresponding to each variable in the system. These methods are stable and preserving the spareness of these matrices. These methods are developed to avoid using the zeros of the multiresultant of each variable which are condition problems. Theoretical and numerical results will be given to show the efficiency of these methods. Finally, algorithms for the Mathematica codes are given.

Disturbance-Observer Based Control For Pwm Rectifiers Without Dc Voltage Oscillations Under Unbalanced Grid Conditions, Mohammed Samer Al-Razehi

Theses

A three-phase controlled rectifier is a power electronic converter that employs the grid voltages as an input to produce a constant dc voltage at its output through the use of a capacitor, known as dc-link capacitor. However, the switching devices of power converters can create harmonics in the grid current, which mandates the need for filters to ensure high-quality grid current. This explains why the power converter is normally connected to the grid using passive filters such as L filter or LCL filter. The L filter is normally preferred over LCL filter to reduce harmonic distortions in grid currents as …

Distribution Of Erm Proteins In The Stomach Mucosa Of Normal And Diabetic Rats, Asmaa Salem Al Sereidi

Theses

Diabetes mellitus (DM), or simply diabetes, refers to a group of metabolic disorders that include a variety of diseases that disrupt our body's metabolism. The long-term uncontrolled disease can lead to stomach complications such as gastroparesis, as well as disruption in several proteins, such as ERM (Ezrin, radixin, moesin) proteins. ERM proteins are three proteins that are structurally and functionally related. ERM proteins have molecular masses of 82, 80, and 75 kDa, respectively. Ezrin is highly expressed in the stomach, especially in parietal cells that secrete gastric acid. ERM proteins function as scaffolding proteins in lipid rafts and granule trafficking …

The Status Of Homogeneous Grouping Implication In English Language Classrooms In The United Arab Emirates, Eman Mohamed Abdelwahab

Theses

This thesis is concerned with the status of homogeneous grouping implication in English language classrooms in the United Arab Emirates public schools. The study aims at exploring students’ and teachers’ perceptions toward homogeneous learning in English language classrooms, encountered challenges and possible suggestions of improvement. The Mixed method was used for data collection and analysis, by using both qualitative (Interview and short-essay questions) and quantitative (Likert-scale questionnaires) data as main sources of data.

The Study sample included 645 participants, consisting of 30 English language teachers and 615 high school students from 13 public schools in the United Arab Emirates. The …

A Data Driven Model To Promote Preparedness And Respond Intelligently To Pandemic Outbreaks, Safea Mohammed Al Senani

Theses

The COVID-19 pandemic has had a major effect on various vital sectors of the economy, including education healthcare, and the industry. Governments have imposed strict regulations to reduce the spread of this global disease outbreak. Consequently, working from home, online learning, social distancing and various control measures were enforced. In response, many schools shifted to distance learning, although most of these schools were neither technically ready nor administratively prepared for the online transition. Despite recent progress, countries are still experiencing daunting challenges to control the infection rate and magnitude, stabilize the economy, and relax socialization and public life activities. Decision-makers …

Orbit Propagation And Determination Algorithms For Satellite Ground Stations, Shamma Esmaeel Jamali

Theses

The satellite orbital parameters are essential for satellite operations. With these parameters, it is possible to estimate the satellite position in the recent past and near future, which is essential to effectively plan satellite operations and associate satellite telemetry with geographical locations.
However, for small or medium satellite operators who do not possess the infrastructure required to track their satellites, the problem of determining the satellite orbit is problematic. To access the orbit for their satellites, these organizations have to rely on third parties such as Celestrak. These entities provide the service free of charge but do not provide orbital …

مبدأ سمو الدستور وآلیة الحفاظ علیه في دولة الإمارات العربیة المتحدة (دراسة تحليلية), أحمد علي محمد مسعود البلوشي

Theses

The study concluded that the constitution, which is the basis of all legal activities practiced by the state, is superior to all legal rules that make up the legal system in the United Arab Emirates. The manifestations of the supremacy of the constitution are represented in two aspects: The objective transcendence that proves for all constitutions, both flexible and rigid, and does not have legal effect, and the formal transcendence that prove only for rigid constitutions, which require special procedures to be followed to amend them, so that the legislative authority is not able to manipulate the constitutional rules and …

The Design Of A Point Of Care Fet Biosensor To Detect And Screen Covid-19, Nisreen Amer Mohammad Alnaji

Theses

This work proposes and demonstrates a biosensor with reduced Graphene Oxide (rGO) based Field Effect Transistor (FET) for rapid and selective detection of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2). The main objective of this thesis is to detect the SARS-CoV-2 spike protein antigen on spot selectively and rapidly. The rGO channel is coated with the spike protein antibodies to achieve selectivity. Moreover, the biosensing performance and specificity are governed by decorating the sensor’s channel with Metal Nanoparticles (MNPs) such as, copper, and silver. The designed sensor successfully detects the SARS-CoV-2 spike protein and shows singular electrical behavior for detection. …

Valuation Of Options In A High Volatile Regime Switching Market, Tasnim Mazen Sharif Alhamad

Theses

Financial modeling by Stochastic Differential Equations-SDEs with regime-switching has been utilized to allow moving from one economic state to another. The aim of this thesis is to tackle the pricing of European options under a regime-switching model where the volatility is augmented. Regime-switching models are more realistic since they encompass the effect of an external event on the underlying asset prices. But they are challenging, considering in addition increased volatility in the model will for sure make the option pricing problem more complicated and its solution may not exist analytically. Numerical methods for finance could be very helpful in this …

المسؤولیة المدنیة عن الاضرار الناشئة عن استخدام الذكاء الإصطناعي في مھنة الطبیب الآلي, سلمى غابش سالم الخمیسي

Theses

The civil liability arising from the use of Artificial Intelligence (AI) in the robotic doctor profession has recently become an innovative topic of discussion in the UAE, as it aims to to employ modern technologies to serve humanity in various fields. This study sheds light on the issue of the role of artificial intelligence in the practice of robotic doctors and the position of the UAE Civil Law, the Federal Medical Liability Law No. (4) of 2016, and the Executive Regulations No. (40) of 2019 and reviewing the report of the European Union Legal Affairs Committeem and the European Parliaments …

Biodegradable Heat Insulation Composites Based On Poly(Β-Hydroxybutyrate) And Date Palm Wood, Amal Ibrahim Mlhem

Theses

Residential buildings contribute the most to energy consumption. It was found that energy savings of 20% can be achieved through the thermal insulation of residential buildings in the United Arab Emirates. For this reason, research has been conducted in the field of sustainable thermal insulation materials. Wood-Plastic Composites (WPC) are a relatively new generation of biocomposites and are particularly suitable for construction and building applications, which offers high thermal and acoustic insulation properties., reducing carbon emissions and decreasing negative impacts on the environment due to their biodegradability, sustainability, renewability, and recyclability. The first part of this study investigated the thermal …

The Impact Of Stem-Based Curriculum On The Development Of Creative Thinking Of High School Students In The United Arab Emirates, Rana Yousef Khalil

Theses

STEM-based curriculum is an integrated structure for teaching science, technology, engineering, and mathematics using project- and inquiry-based learning to produce creative outcomes. This study aims to assess the impact of STEM-based curriculum on the development of creative thinking of high school students while studying physics. Further, this study aims to assess the impact of students’ gender and grade level on the development of creative thinking after implementing a STEM-based curriculum. For this purpose, a quasi-experimental design was used to collect data using the Torrance Test of Creative Thinking (TTCT) and its metrics (fluency, elaboration, flexibility, and originality). In one of …

Process And Play: Investigating Connections And Form, Mary Catherine Fruehan

Theses

This project focuses on the body of sculptural work I created and the influences and outcomes surrounding it. Throughout this project, I focused on making both physical and conceptual connections and working with materials in playful and novel ways. Process, play, and experimentation all came together to create improvisational works of collage and sculpture. These works, often made from repurposed, discarded or mundane materials, have formal references to functional or recognizable objects, but the focus is on the relationships and connections between pieces. An ethos of resourcefulness and “making do” permeates the work, much of which is built with tenuous …

‘Meet New Vcd’ Immersive Art Gallery, Wenting Toby Xue

Theses

Students of the Visual Communication Design (VCD) program may have a relatively distressing question about how to explain some details of this program to others. Someone will always ask how to define and explain the VCD. Therefore, in the spirit of redefining the VCD program and creating a platform to more intuitively demonstrate the current success of VCD students in visual design. The curriculum of this program and related student works are mainly user-centered design as the primary starting point. Innovation and forward-looking are necessary. To better communicate the VCD project and expand its influence. According to the questionnaire and …

Building Community Through Urban Renovation On Pittsburgh's Riverfront, Shian Wu

Theses

Every city has its most important place for citizens to promote informal sociability and urban connection with humans. The riverside is the most important urban connection in Pittsburgh. Each side of the bridge has a different development level. The design of the riverside pedestrian path can build a connection between both sides of the bridge and help urban development in the north side of Pittsburgh. The aim of the study is to analyze the connection between architectural open space, pedestrian trails, and riverway trails and to propose methods that are suitable for developing a mixed-use building that will help improve …

Water Microbial Pollution Risk Simulation And Prediction Using Ml, Dania Al Safadi

Theses

Water quality has been a global concern due to its scarcity as well as it is direct effects on wellbeing and food production. Therefore, many studies have been addressing this matter in order to address the consequences left behind. Consider the harmful effects of polluted water moving uninterrupted over vast distances and through countless homes. The water we drink, cook with, and bathe in would not be safe requiring an immediate response in order to reduce the damage as a direct result of the pollution. The aim of this study was to develop models that could evaluate the microbial water …

Fraudulent Insurance Claims Detection Using Machine Learning, Arif Ismail Alrais

Theses

As the different countries around the world evolve into a more economical-based and stimulating their economy is the goal. The main purpose of most of these countries is to fight off money launderers and fraudsters for better economic growth. A popular fraud topic in this regard is insurance fraud since it costs the companies and the public billions. Applying data analysis and machine learning are great ways used to address many problems regarding any automated system. To address this problem, first extensive research should be made to check out what has been applied and what the most promising solution using …

The Effect Of Specimen Thickness On The Lüders Phenomena In Aisi 1524 Steel Alloy, Joost H. Van Der Heijde

Theses

At certain temperatures, strain rates and slender geometries, low carbon steels, as well as some aluminum, magnesium and nickel-based alloys, exhibit plastic flow instability at the onset of their respective yield points, known as the Lüders phenomena. Such phenomenon is recognized by a distinct yield point and subsequent plateau on the stress-strain curve. This thesis aims to investigate the effect of the sample’s thickness on the Lüders phenomena in AISI 1524 hot-rolled steel alloy. Sixteen samples were machined from hot-rolled plates and uniaxial testing in conjunction with digital image correlation were performed to gain insight and quantify the Lüders band’s …

A Hybrid Time-Series Pv Power Forecasting Model Implementing Facebook Prophet And Neural Prophet Algorithms, Afra Nasser Al Mansoori, Fatima Ahmed Al Ajami, Maha Ali Mousa

Theses

Globally, countries are limiting their dependency on conventional energy as their primary energy source. From this perspective, the ongoing integration of renewable energy sources with existing systems is the focus of researchers and power utilities. Photovoltaics (PV) is one of the leading solar technologies driving substantial growth in renewable energy applications. Consequently, power utilities are faced with large penetration of PV systems within the existing electrical grid. This ongoing integration introduces new electricity generation profiles, which raises technical challenges affecting grid reliability. Therefore, this work proposes building a PV power short-term forecasting model, which can avoid adverse outcomes of large …

Determining Suitable Green Biorefinery Locations In Ireland For Irish Agriculture Using Co-Design, Economic And Geographical Information Systems, Alice Hand

Theses

The aim of this thesis is to investigate potential locations for a suitable green biorefinery model in Ireland, which would offer an opportunity for sustainable diversification to grassland farmers. A mixed method approach was used to collect data to support the design and analyse a green biorefinery model. A three phased methodology was applied representing the Co-design, Economic and the Geographical Information Systems analysis phase. Key stakeholders identified in the co-design phase included farmers, cooperatives, market partners as having a direct impact on a biorefinery. This provided insight to the farmers preferred model. Using these findings, an economic assessment was …

دراسة أسالیب الحوكمة والإدارة للحصول على شھادات التميز المؤسسي في الھیئة الاتحادیة للھویة والجنسیة والجمارك وأمن المنافذ, مریم محمد عبید كنيش الھاملي

Theses

Governance is one of the most recent global trends for the control of the management of government organizations, which contributes to reducing the misuse of the entrusted powers. The importance of governance stems from its role in protecting the rights of all stakeholders. In the United Arab Emirates, the Federal Authority for Identity, Citizenship, Customs and Ports Security has succeeded in obtaining many awards for organization excellence over the past years at the national and international levels.

In view of the preceding, the purpose of this study was to investigate the impact of governance and management techniques on the Federal …

Quality-Of-Service Provisioning For Smart City Applications Using Software-Defined Networking, Basima Kurungadan

Theses

In the current world, most cities have WiFi Access Points (AP) in every nook and corner. Hence upraising these cities to the status of a smart city is a more easily achievable task than before. Internet-of-Things (IoT) connections primarily use WiFi standards to form the veins of a smart city. Unfortunately, this vast potential of WiFi technology in the genesis of smart cities is somehow compromised due to its failure in meeting unique Quality-of-Service (QoS) demands of smart city applications. Out of the following QoS factors; transmission link bandwidth, packet transmission delay, jitter, and packet loss rate, not all applications …

Traffic Accidents Analysis & Prediction In Uae, Majid Alhosani

Theses

UAE has state-of-the-art roads and traffic infrastructure, and yet there has been a rapid increase in the number of traffic accidents. As per National Agenda 2021, the UAE traffic departments are working to minimize the rate of road traffic death per 100 thousand people. The Traffic and Patrols Directorate in Abu Dhabi launched a road safety management plan. This aims at decreasing the fatalities from traffic accidents to 3 per 100,000 inhabitants by 2021. According to police, distracted driving, sudden swerving, entering a road without ensuring that it is clear, tailgating and speeding without considering the road conditions has caused …

Associated Risk Of Blastocystis Infection In Colorectal Cancer, Lena Abdulbaset Labania

Theses

Blastocystis species is an anaerobic intestinal protozoan seen in humans and a wide range of animals. Only nine Blastocystis subtypes are seen in humans. The pathogenicity of Blastocystis spp. has long been controversial. Recently, a subtype-dependent association between Blastocystis spp. and colorectal cancer (CRC) is being debated. Thus, this thesis aims to assess the possible association between Blastocystis spp. infection and CRC condition compared to cancer outside the gastrointestinal tract (COGT) and a cancer-free control (CF) group. This study is the first of its kind in the UAE. Participants were divided into two groups; cancer patients and CF participants. The …

Correlation Of Gut Alteration With The Progression Of Experimental Autoimmune Encephalomyelitis (Eae) In C57bl/6 Mice, Al Anood Ahmed Al Naqbi

Theses

Background: Experimental autoimmune encephalomyelitis (EAE) is the mouse disease model of multiple sclerosis (MS), a chronic autoimmune disease targeting the central nervous system (CNS) resulting in neuroinflammation, neuroaxonal degeneration, and demyelination. Autoreactive CD4⁺ T cells are known for their role in the pathogenesis of MS. CD8⁺ T cells and NK cells were also found to be associated with the disease.

Aim: There is a limited number of studies investigating the link between gut alterations and immune cells in the gut influencing the outcome of the disease since the vast majority of MS patients experience gastrointestinal (GI) problems. Here, …

Mitigating Progressive Collapse Resistance Of Reinforced Concrete Framed Structures With Innovative Reinforcing Scheme, Ahmad Zaki Abdelkarim

Theses

The objective of this thesis is to numerically investigate the performance and efficiency of a novel proposed mitigating method to improve the resistance of reinforced concrete (RC) floor systems to progressive collapse as a result of a potential column failure. The proposed mitigating method applies to RC floor systems in framed structures, and it is based on a concept of developing self-generated “post-tensioning” axial compressive forces within segments of the floor beams that bridge over the potential failed column. To achieve this goal, the proposed method is comprised of adding diagonal top and bottom steel bars within the floor slab …

Investigating The Role Of Natural Killer (Nk) Cells In Ozanimod-Mediated Remission In Experimental Autoimmune Encephalomyelitis (Eae) In C57bl/6 Mice, Doua Youssef Kamyan

Theses

Experimental autoimmune encephalomyelitis (EAE) is an important model of multiple sclerosis (MS) in rodents. The disease is characterized by axonal damages mediated by activated autoreactive T lymphocytes, microglia, and macrophages. Ozanimod (RPC1063) is an immunomodulator that has been recently approved by the FDA for the treatment of relapsing-remitting multiple sclerosis (2020) and ulcerative colitis (2021). It is a selective agonist of the sphingosine1-phophate receptors (1 and 5) involved in lymphocyte trafficking and expressed on naïve and central memory T and B cells as well as NK cells. Ozanimod acts by inducing internalization and degradation of the S1PR which in turn …