Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Theses

Discipline
Institution
Keyword
Publication Year
Publication Type

Articles 571 - 600 of 4535

Full-Text Articles in Entire DC Network

An Examination Of The Associations Between Eating Competence, Physical Activity, Mealtime Activities And School Behavior In Adolescents, Nicole Watson Jun 2023

An Examination Of The Associations Between Eating Competence, Physical Activity, Mealtime Activities And School Behavior In Adolescents, Nicole Watson

Theses

Background: An association between eating competence (EC) and physical activity, diet quality, less stress, greater weight satisfaction and many other outcomes has been identified in adult populations. However, limited research has been conducted into EC and associations in the adolescent population. Specifically, the associations between eating competence and physical activity, mealtime activities, and school behavior in adolescents has not been examined. Purpose: To examine the congruence between eating competence and physical activity, mealtime activities, and school behavior in adolescents (ages 11-16) who had participated in the Fuel for Fun study as 4th graders. Methods: Secondary data analysis of collected data …


Enhancing User Learning Experience Of A New Therapeutic Approach For Scleroderma Using Vr, Joanne Park Jun 2023

Enhancing User Learning Experience Of A New Therapeutic Approach For Scleroderma Using Vr, Joanne Park

Theses

The transient receptor potential cation 6 (TRPC6) channel is an integral membrane protein that alters the intracellular calcium (Ca2+) concentration and is also responsible for a variety of tissue expression, physiological functions and channel properties (Ong et al., 2016). Recently, researchers at RIT have discovered a new therapeutic approach for scleroderma, also known as skin fibrosis, that involves the inhibition of the TRPC6 channel. To help spread awareness of their research and to enhance the user learning experience, an interactive virtual reality (IVR) experience was created, as well as supplemental 3D animations, that will be available through the researcher’s website. …


Anti-Pancreatic Cancer Activity Of Rhus Coriaria (Sumac), Yassine Elmahi Jun 2023

Anti-Pancreatic Cancer Activity Of Rhus Coriaria (Sumac), Yassine Elmahi

Theses

Cancer is a major health problem and is considered a chronic disease globally. Pancreatic cancer is one of the deadliest types of cancer. That is because symptoms increase until the cancer is spread to other parts of the body in late stages. Among the many different therapeutic approaches to treat cancer, it appears that many plants have promising treatment effects, and one of these plants is Rhus coriaria, commonly known as Sumac. Previous studies have indicated that the Sumac plant, which is used in cooking, possesses various therapeutic values, including antioxidant and antibiotic activities. This study investigates the effect …


Screening And Genomic Characterization Of Multi-Drug Resistant (Mdr) Bacteria From Hospital Wastewater, Showq Abdelaziz Abdelaziz Jun 2023

Screening And Genomic Characterization Of Multi-Drug Resistant (Mdr) Bacteria From Hospital Wastewater, Showq Abdelaziz Abdelaziz

Theses

Antimicrobial resistance poses an imminent global threat to public health, with multidrug-resistant (MDR) bacteria being particularly worrisome due to their resistance to multiple antibiotics. Hospital wastewater has been identified as a potential source of MDR bacteria and antibiotic-resistant genes (ARGs). This study aimed to investigate MDR bacteria's prevalence, diversity, and genomic potential in hospital wastewater samples collected from three different hospitals in the UAE. Samples were processed for culturing antibiotic-resistant bacteria using different HiCrome™ chromogenic media to screen for ESBL-producing, Vancomycin, Carbapenem, colistin, and Methicillin-resistant bacteria. The isolates were characterized using VITEk2 antibiotic profiling and identified using 16S rRNA sequencing …


Standardizing Sustainable Aquaponic Production Of Leafy Greens And Fish: A Comparison With Conventional Systems In The United Arab Emirates, Drishya Nishanth Jun 2023

Standardizing Sustainable Aquaponic Production Of Leafy Greens And Fish: A Comparison With Conventional Systems In The United Arab Emirates, Drishya Nishanth

Theses

The production of leafy green vegetables through aquaponics is established worldwide, but the production of herbs which are used in day-to-day life in the United Arab Emirates is not yet explored in this system in terms of production efficiency, water usage and the nutrient parameters. In the current study, basil (Ocimum basilicum L.) and coriander (Coriandrum sativum L.), the two commonly used herbs, were grown in a traditional aquaponics system using tilapia fish and catfish effluent water (soil-less agriculture) and an irrigation-based greenhouse cultivation system (soil cultivation). The study's major goal is to evaluate several growth techniques for …


Biochemical Characterization Of Date Palm (Phoniex Dactylifera L) Seeds Maintained At Microgravity In Outer Space Iss, Shamma Khalid Aldhaheri Jun 2023

Biochemical Characterization Of Date Palm (Phoniex Dactylifera L) Seeds Maintained At Microgravity In Outer Space Iss, Shamma Khalid Aldhaheri

Theses

The UAE’s vision to reach space dates to 1976 when Sheikh Zayed Bin Sultan Al Nahyan met with the National Aeronautics and Space Administration (NASA) Apollo group; this meeting marked the first attempt of UAE to enter the field of space science. The UAE is currently one of the top countries executing space missions and research. This research focuses on the biochemical characterization of date palm seeds that are sent to the International Space Station (ISS) in outer space. The research methodology involves biochemical analysis of seeds maintained under two different environmental conditions-microgravity and standard gravity. In total, 30–45 seeds …


Understanding The Intracellular Positive Regulatory Interactions In The Metabolic Network, Sultana Mohammed Al Zubaidi Jun 2023

Understanding The Intracellular Positive Regulatory Interactions In The Metabolic Network, Sultana Mohammed Al Zubaidi

Theses

Metabolism is an essential cellular process that produces essential components such as energy molecules and cellular building blocks. It is regulated by intracellular metabolite-enzyme interactions, which can increase or decrease enzyme efficiency. Each metabolic process is not evolved in nature and may not contribute to the optimal efficiency of the organism's metabolism. However, this study aims to clarify the relationship between cellular positive regulatory interactions and the cell's metabolic network, especially how these relationships regulate metabolism and how it evolved in nature. To obtain that, for each enzyme, the activation molecules from the BRENDA database were downloaded, mapped data to …


Using The Hirota Method To Investigate The Integrability And New Exact Solutions Of The Non-Autonomous Nonlinear Schrodinger Equation, Islam Majed Albazlamit Jun 2023

Using The Hirota Method To Investigate The Integrability And New Exact Solutions Of The Non-Autonomous Nonlinear Schrodinger Equation, Islam Majed Albazlamit

Theses

In this thesis research, we investigate the existence of Hirota bilinear systems for the non-autonomous nonlinear Schrodinger equation (NLSE) with position- and time-dependent coefficients and external potentials. To that end, we employ a semi-analytical systematic method that employs some exact solutions. The Hirota bilinear system is then employed to derive new solutions to the same nonlinear differential equation. We have applied this approach to a number of different versions of NLSEs to find that each family of solutions shares the same Hirota bilinear system. Furthermore, properties of solutions such as stability are investigated.


Fabrication, Characterization And Analytical Applications Of Planar Solid Metal And Planar Cavity Electrodes, Fatima Salmeen Alnuaimi Jun 2023

Fabrication, Characterization And Analytical Applications Of Planar Solid Metal And Planar Cavity Electrodes, Fatima Salmeen Alnuaimi

Theses

The present thesis describes the design, construction, and applications of a versatile flow cell (VFC) for used with different types of planar working electrodes. These included the commercially available planar 3-electrode screen-printed electrode chips (SPECs), custom planar metallic electrodes (PMEs), and cavity-type electrodes (CTEs). The PMEs are fabricated from platinum, titanium, stainless steel and copper rods inserted in a rectangular-PEEK housing, respectively. The dimensions of the PEEK blocks were 13.5 mm width x 39 mm length x 12.5 mm height. The VFC was constructed from a cell cover and base machined from acrylic sheets. The cover incorporated a built-in Ag/AgCl/Cl …


Preparation Of Copper Oxide Nano-Architectures For Fog Harvesting Applications, Ola M. Abu Draz Jun 2023

Preparation Of Copper Oxide Nano-Architectures For Fog Harvesting Applications, Ola M. Abu Draz

Theses

The issue of limited freshwater resources is a significant problem for humans, especially in desert areas where water scarcity poses a serious risk to human survival. In nature, there are several species that harvest fog based on their tuned surface structure, e.g.., Cactus, desert beetles, etc. In addition to surface hydrophilic/hydrophobic architecture, another key factor in effective water collection is the porosity of the surface, which helps droplets to form, grow, and be removed. To address the challenge of water scarcity, we inspired, from nature, to design surfaces that have features that favor water collection. In this aspect, we introduced …


Assessment Of Microplastics Consumed By Fishes In The United Arab Emirates Waters Of The Arabian Gulf, Maisan Mhd Al Wattar Jun 2023

Assessment Of Microplastics Consumed By Fishes In The United Arab Emirates Waters Of The Arabian Gulf, Maisan Mhd Al Wattar

Theses

Microplastics are plastic particles that are between 1 μm to 5 mm in size. Microplastics are currently threatening the marine ecosystems, including the water, sediments, and biota. Due to microplastics being relatively mobile, evidence of microplastic pollution is found in all water bodies, even in remote places such as the Antarctica. Although the Arabian Gulf is subjected to a number of anthropogenic stressors, to date, only few studies on the presence of microplastics have been carried out. This study assesses the microplastic presence in 60 fish samples from the emirates Abu Dhabi, Sharjah, and Ras Al Khaimah. The 5 fish …


Heavy Metal Bioaccumulation In Benthic Flatfishes From Territorial Waters Of Fujairah, United Arab Emirates, Shima Mohammed Albadi Jun 2023

Heavy Metal Bioaccumulation In Benthic Flatfishes From Territorial Waters Of Fujairah, United Arab Emirates, Shima Mohammed Albadi

Theses

Marine pollution from anthropogenic sources is a major threat to many coastal and offshore species. A variety of potentially harmful elements are released from wastewater runoff, leached from landfills or industrial effluents. I measured trace metal concentrations in the liver, gills, and muscles of two benthic flatfish species, the halibut (Hippoglossus hippoglossus), and the Dover sole (Solea solea). The primary objective of this thesis was to evaluate the status of the benthic fish species in the Fujairah waters to understand the pollution status of regional waters and assess their effects on human consumption. Inductively Coupled Plasma …


Fog Harvesting Using Chemically Functionalized Porous Membranes, Afra Saif Alhumaidi Jun 2023

Fog Harvesting Using Chemically Functionalized Porous Membranes, Afra Saif Alhumaidi

Theses

This work explores the use of chemically functionalized porous membranes for fog harvesting. Fog water has emerged as a valuable alternative water source in regions where traditional freshwater resources are scarce. However, conventional fog harvesting techniques often suffer from low collection efficiency and limited scalability. To address these challenges, this research investigates the potential of chemically functionalized porous membranes for enhanced fog water collection. The study focuses on the development and characterization of specialized membranes with surface properties optimized for efficient fog droplet capture.
/="/">The current study proposes the use of aluminum mesh for fog collection, as it stands …


The Role Of Trees In Reducing The Urban Heat Island Effect On The New Jersey Institute Of Technology Campus, Newark, Nj, Dahlia Mansour May 2023

The Role Of Trees In Reducing The Urban Heat Island Effect On The New Jersey Institute Of Technology Campus, Newark, Nj, Dahlia Mansour

Theses

Every year, an estimated 12.3 million tons of glass are generated in the United States. Of all glass generated, only 3.1 million tons are recycled. Despite the near endless recyclability of glass waste, recycling rates in the United States remain low. This is primarily due to the lack of color separation and presence of non-recyclable materials associated with single-stream curbside collection used in many municipalities throughout the country. These factors make recycled glass unusable for many glass bottle manufacturers, causing the majority of glass placed in a recycling bin to eventually be landfilled. The purpose of this research is to …


Bright Light Therapy And Depression: Assessing Suitability Using Entrainment Maps, Charles A. Mainwaring May 2023

Bright Light Therapy And Depression: Assessing Suitability Using Entrainment Maps, Charles A. Mainwaring

Theses

Bright Light Therapy has been shown to be efficacious to mood disorders including Major Depression. Researchers use the Jewett-Forger-Kronauer model of the circadian rhythm with the Unified Model of melatonin including a mathematical term implementing feedback from the melatonin system into the circadian system to quantify the effects of bright light. Early investigations into intrinsic period, light sensitivity, and the circadian pacemaker's sensitivity to blood melatonin concentration may be indicators of subsets of patients with long intrinsic periods exhibiting symptoms of depression.


The Evaluation Of Carbon Benefits Produced By Urban Street Trees, Hanyu Wang May 2023

The Evaluation Of Carbon Benefits Produced By Urban Street Trees, Hanyu Wang

Theses

Urban tree service and urban forestry are important fields that focus on the care and management of trees in urban areas. Urban trees provide numerous benefits around all aspect, including carbon storage, improving air and water qualities. Carbon storage refers to the process of removing carbon dioxide (CO2) from the atmosphere and storing it in various reservoirs, and in this case, in trees and forests.

i-Tree is a suite of software tools developed by the United States Forest Service that provides a range of resources for assessing and managing forests. i-Tree Eco is one of the more used tools from …


A Novel Approach To The Treatment Of Degenerative Disc Disease, Alexandra Mckillop May 2023

A Novel Approach To The Treatment Of Degenerative Disc Disease, Alexandra Mckillop

Theses

Low back pain is estimated to affect 80% of the population at some point in their lives. It places a high economic burden on society, as individuals suffering from low back pain are often less productive and miss more work days, resulting in lost wages (Freburger et al., 2015; Katz, 2006; Taher et al., 2012). Degenerative Disc Disease (DDD) is among the most common causes of low back pain. It is a pathological process where the intervertebral disc (IVD) undergoes structural changes and is characterized by increased inflammation within the disc, in combination with nerve ingrowth causing pain. Structural changes …


3-D Printed Microstructures With Zno Nanoflower For Antimicrobial Applications, Henry Yuqing May 2023

3-D Printed Microstructures With Zno Nanoflower For Antimicrobial Applications, Henry Yuqing

Theses

Many studies have been conducted to combat the bacterial infections problem by creating antimicrobial surfaces. However, the majority of them require complex manufacturing processes and expensive equipment. In this study, a cheaper and easy to be fabricated antimicrobial surface has been developed. First, a micropatterned 3D printed structure was fabricated. Then it was coated with zinc oxide (ZnO) nanoflower. The study demonstrated that micropatterned structure served as an “armor” to the nanostructure from plastic scraper and finger abrasion. To test the antimicrobial performance of the surface, the chip was immersed in 2E8 CFU/mL Escherichia coli (E. coli) suspension and incubated …


Emergent Properties Of Cells And Tissues In Health And Disease, Pancy T. Lwin May 2023

Emergent Properties Of Cells And Tissues In Health And Disease, Pancy T. Lwin

Theses

This dissertation uses statistical physics based mathematical models to investigate and predict the emergent properties of biological systems in both healthy and diseased states. Three projects are presented, each exploring a different aspect of biological systems. The first project focuses on modeling cartilage-like tissue systems as a double network consisting of two interconnected networks. By using rigidity percolation theory, we study the tunable mechanics and fracture resistance of such biological tissues in healthy and degraded states. Our findings show that the secondary network density can be tuned to facilitate stress relaxation, leading to robust tissue properties when the primary network …


Customised Investment Optimization Using Genetic Algorithms, Maythaa Al Ali, Shaikha Al Dossari May 2023

Customised Investment Optimization Using Genetic Algorithms, Maythaa Al Ali, Shaikha Al Dossari

Theses

Portfolio selection is an important part of fund management as it contributes to investors’ economic growth. Investing is investing money to obtain an additional or specific advantage over money. Investment involves not only profit (return), but also risk that the investor bears. The higher the return an investor expects, the higher the risk the investor takes. Proper portfolio construction can minimize the level of risk to the expected value of an individual stock portfolio. Equity portfolio optimization, therefore, plays an important role in setting an investor’s investment portfolio strategy. In recent decades, there have been great advances in financial mathematics. …


The Inspector: Removing Barriers To Efficient Specimen Analysis By Reduced Specimen Repositioning, Josef Mayo May 2023

The Inspector: Removing Barriers To Efficient Specimen Analysis By Reduced Specimen Repositioning, Josef Mayo

Theses

Entomology is the scientific field dedicated to the research and study of insects. In the last several decades, many journals and scientific papers have addressed the decline in insect populations worldwide and the increased need to understand the reasons for this. Many have called this decline an indicator that we have entered a “Sixth Extinction” which would lead to a mass extinction of life on Earth. How can we as designers provide assistance to the scientific community who are working to understand and provide solutions to this natural crisis? As an Entomologist's primary tool for observation, microscopes and other optical …


Measuring Diffusion Through Carbon Nanotube Arrays With Fluorescent Spectroscopy, Michael Machold May 2023

Measuring Diffusion Through Carbon Nanotube Arrays With Fluorescent Spectroscopy, Michael Machold

Theses

Carbon nanotube (CNT) arrays are emerging as versatile nanostructures that can be used in many applications including gene transfection technology. To understand the transport of molecules through an array of CNTs, diffusion of molecules was studied experimentally and analytically. A procedure using fluorescent spectroscopy was developed to measure the concentration change of fluorescein salt in a two-reservoir system separated by a CNT array. Experiments were conducted to measure how changing the initial concentration gradient and reservoir volume size impacted the diffusivity of the system. For 2 mL reservoirs, diffusivities were measured between 2.56*10^(-11) m^2/s and 3.51*10^(-11) m^2/s. Diffusivities were measured …


Characterization Of Microbial Communities On Post-Consumer Polymers In Water Bodies Of The Lake Ontario Watershed: Environment Determines Community Structure On Post-Consumer Plastic, Carmella M. Bangkong May 2023

Characterization Of Microbial Communities On Post-Consumer Polymers In Water Bodies Of The Lake Ontario Watershed: Environment Determines Community Structure On Post-Consumer Plastic, Carmella M. Bangkong

Theses

Plastic debris has been found across the spectrum of freshwater ecosystems, including stormwater retention ponds, tributaries, rivers, and large lakes. The ubiquity of plastic debris in the valuable freshwater ecosystems that we rely on for our water supply and natural resources raises a number of environmental and human health concerns. Little is known about how the composition of plastic-associated microbial biofilms varies across the many types of plastic polymers or how these biofilms vary in microbial composition across freshwater environments. These interactions raise the potential for the selection of unique communities of organisms that shift ecosystem function, or harbor pathogenic …


Glass, Danielle Tonnessen May 2023

Glass, Danielle Tonnessen

Theses

This project is a full walking simulator video game and includes a demonstration of a variety of game design and development skills, including pre-development documentation, narration, game design audio, graphics, post-processing, UI elements and animation. Additionally, the project promotes the author’s ability in creative writing, and involves mental health subject matter with a focus on trauma processing, hypnosis, and survivor’s guilt.


Optimizing Voronoi Tessellation Façade’S Capability For Pollution Removal And Interior Daylighting In An Urban Environment, Simon Bai May 2023

Optimizing Voronoi Tessellation Façade’S Capability For Pollution Removal And Interior Daylighting In An Urban Environment, Simon Bai

Theses

Air pollutants are a major health concern in urban zones worldwide, and these unnoticeable air particulates and gases are detrimental to the individuals’ respiratory and cardiovascular wellbeing. Since buildings are the most abundant structure within these built environments, this study focuses on how to utilize the façade of these structures in an attempt to solve the escalating air pollution problem. In this case, titanium dioxide (TiO2) is introduced to give building façades the capability to deal with air pollution in addition to being inexpensive and chemically stable. A TiO2 surface makes use of photocatalysis under ultraviolet (UV) light to decompose …


End-To-End Network Slicing Using Hypergraph Theory, Omar Abdul-Latif May 2023

End-To-End Network Slicing Using Hypergraph Theory, Omar Abdul-Latif

Theses

Network slicing is the practice of implementing multiple virtualized and independent architectures on a single physical network infrastructure, in a way that allows for multiplexing and efficient use of resources. Network slicing is based on the concept of network virtualization and, when it reaches maturity, is expected to result in complete softwarization of 5G, Beyond-5G (B5G) and 6G networks. This means that future networks will only need minimal physical infrastructure upgrades (mostly in the frontend of the network). Network slicing is identified as one of the key enablers of next generation wireless mobile networks due to its ability to multiplex …


Improved Grover’S Implementation Of Quantum Binary Neural Networks, Brody A. Wrighter May 2023

Improved Grover’S Implementation Of Quantum Binary Neural Networks, Brody A. Wrighter

Theses

Binary Neural Networks (BNNs) are the result of a simplification of network parameters in Artificial Neural Networks (ANNs). The computational complexity of training ANNs increases significantly as the size of the network increases. This complexity can be greatly reduced if the parameters of the network are binarized. Binarization, which is a one bit quantization, can also come with complications including quantization error and information loss. The implementation of BNNs on quantum hardware could potentially provide a computational advantage over its classical counterpart. This is due to the fact that binarized parameters fit nicely to the nature of quantum hardware. Quantum …


Curio-Stereo: A Vr Application For The Viewing Of Stereograph Cards, Paige Sandheinrich May 2023

Curio-Stereo: A Vr Application For The Viewing Of Stereograph Cards, Paige Sandheinrich

Theses

This project discusses the historical significance of stereograph cards as a tool for constructing a shared visual culture in the late 19th and early 20th centuries in the United States and the United Kingdom. Stereographs were widely popularized as an entertainment and educational tool, offering an immersive experience for the viewers. The stereoscopic nature of the images allowed the viewers to immerse themselves in a non-physical reality through visual stimulation, creating a haptic involvement that was unique to the medium. The project of creating a VR application to view stereographs is presented as a potential solution to the problem of …


Reconsidering Gender And Social Constructs In Prehistoric Cave Art: The Role Of Women In Creating Art, Amanda Mooney May 2023

Reconsidering Gender And Social Constructs In Prehistoric Cave Art: The Role Of Women In Creating Art, Amanda Mooney

Theses

This thesis reviews the importance of Prehistoric Cave Art and the partial basis of its creation, including some ways in which gender and society of the time influenced and led to the creation of said art, with a considerable focus on the devaluation that women have faced as artists in prehistory. The timeframe under consideration follows the Upper Paleolithic period, which covers 50,000 years ago to 10,000 years ago. Reviewing images from certain cave art in this time period of 50,000 years ago to 10,000 years ago, and recent scholarship allows for a specific look into the assumptions of who …


Lead Scoring Using Low Code Ml Library, Ayad Aziz May 2023

Lead Scoring Using Low Code Ml Library, Ayad Aziz

Theses

Scoring leads manually can be time-consuming and ineffective because it relies on subjective criteria and human biases. On the other hand, automated lead scoring uses advanced algorithms to analyse large datasets and accurately predict a lead's potential value to the business. It provides valuable insights into customer behaviour and preferences that inform marketing and sales strategies. Machine learning algorithms are trained on historical sales data to identify patterns and correlations that indicate a lead's likelihood to convert. They consider variables like demographic information, web behaviour, and marketing engagement to generate a lead score that reflects the probability of converting into …