Digital Commons Network^™

Organic-Based Nutrient Solutions For Sustainable Vegetable Production In A Zero -Runoff Soilless Growing System, Maitha Salem Almheiri

Theses

As the adoption of soilless production systems escalates to meet the rising demand for safe and healthy fresh produce, the growing environmental awareness and consumer’s preference for sustainable production systems are stimulating the reduction of synthetic inputs. A greenhouse study using an auto-pot zero-runoff hydroponic system and lettuce (Lactuca sativa L.) as a model vegetable crop was conducted to evaluate the potential of substituting synthetic fertilizer Nutrient Solutions (NS) with organic-based NS. The use of organic NS resulted in lettuce plants with fewer leaves and a smaller leaf area, plant height, stem diameter, and fresh biomass compared to those …

Optimization Of In-Vitro Regeneration And Agrobacterium-Mediated Transformation Of Lactuca Sativa, Mohamed Omer Elsiddig

Theses

Lettuce (Lactuca sativa L.) is a leafy vegetable consumed worldwide, mainly as a green salad. It is an herbaceous, self-pollinated annual plant of the family Asteraceae. Lettuce is low in calories, fat, and sodium. It is a good source of fiber, iron, folate, and vitamin C. Improving existing lettuce varieties for water use efficiency, photosynthesis efficiency, salt tolerance, increased nutritional content, etc., is the need of the hour, considering that lettuce is a crop ideal for vertical farming in the UAE.

This study aimed to develop a highly efficient in vitro regeneration and Agrobacterium- mediated transformation protocol for a popular …

Locally Tailored Knowledge, Attitude And Practice Towards Diet Sustainability Questionnaire: Validation Among Uaeu Adults, Asma Bahaaldeen Numan

Theses

Food production is a major contributor to global environmental change and sustainability. Sustainable diets can be defined as “diets with low environmental impacts which contribute to food and nutrition security and healthy life for present and future generations”. The United Arab Emirates (UAE) aims to enhance its food security to meet the current local demand and future needs of an increasing population. Before determining a sustainable diet pattern for the UAE population, it is foremost more important to understand the perception of sustainable diet production and consumption. A thorough comprehension of the knowledge, attitudes, and practices of the United Arab …

Transformer-Based Deep Learning Model For Sign Language Recognition, Ganzorig Batnasan

Theses

Sign language recognition research aims to develop systems and tools that can interpret and translate sign language into text or spoken language. During the past two decades, the challenges faced in this domain are multifaceted. The first and foremost challenge is the complexity of sign language, which includes intricate hand gestures, facial expressions, and body movements. Recognizing and interpreting these components accurately is challenging. The second challenge is variability among different regions and communities, leading to variations in signs and gestures. This variability poses a challenge for developing universal recognition systems.
Limited data is another challenge which makes it difficult …

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 …

Pea And Hemp Protein-Polyphenol Complexes For Improved Curcumin Delivery Via Emulsion System, Muhammed Suhail Ashraf

Theses

This study focuses on producing and characterizing protein-polyphenol complexes derived from pea and hemp proteins, paired with a variety of polyphenols including 2,4-Dihydroxybenzoic acid, Ferulic acid, and Rutin. The complexes were characterized using various techniques: UV-visible spectroscopy, fluorescence spectroscopy, total phenolic content analysis, and radical scavenging activities. Further, oil-in-water emulsions stabilised using these protein-polyphenol complexes and starch were explored as delivery systems for curcumin respectively. The formation of complexes was revealed by UV-visible spectroscopy, which indicated significant changes in the spectra of hemp and pea proteins upon complexation with polyphenols. The findings from UV-visible spectroscopy were supported by data from …

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 …

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 …

Advanced Nanostructured Materials For Water Harvesting And Energy Storage, Ahmed Elsir Ali

Theses

This thesis presents the work done developing nanotechnology-based compositions contributing to the advancement of two main sectors: Water and Energy. For they present vital impact and correspondence for sustainability and development worldwide. Composites constituted following the most recent trends in material science and nanotechnology while revolving around Manganese Oxide as the material of investigation. Water security is one of the most important challenges in our current times. Moreover, reports warn of the predicted restricted access to clean water by 2050, which is expected to impact more than half the population. Thus, many scientists and societies are exerting efforts to develop …

Utilizing Hyperspectral Remote Sensing For Saline Soil Assessment In The Emirate Of Abu Dhabi, United Arab Emirates, Alya Hassan Aldhaheri

Theses

This study presents the application of hyperspectral remote sensing techniques to measure soil salinity. Soil salinity is a major concern in many arid and semi-arid regions, affecting crop productivity and ecosystem health. In most arid and semi-arid areas various levels of salinity can be encountered including sabkhas. Sabkha (salt flat) is a geological feature composed of saline and salt marshes that typically occur in shallow or coastal environments within arid and semi-arid climates. Traditional methods of measuring soil salinity are time-consuming and labor-intensive, making remote sensing techniques an attractive alternative. This study employed a hyperspectral sensor specifically the SVC-XHR-1024i to …

Ellagic Acid Inhibits Α-Synuclein Propagation And Alleviates The Neurotoxicity By Enhancing Autophagic Flux In Animal Model Of Parkinson’S Disease, Nada Akram Abdellatif

Theses

Parkinson’s Disease (PD) is the second most common neurological disorder pathologically characterized by loss of dopaminergic neurons in the Substantia Nigra pars compacta (SNc) as well as the formation of Lewy bodies composed mainly of α-synuclein (α-syn) aggregates. It has been documented that abnormal aggregation of α-syn is one of the major causes of developing PD. Ellagic Acid (EA) is a widely known dietary supplement found in pomegranates as well as a plethora of berries and nuts. EA has been shown to prevent α-syn aggregates’ toxicity in cellular model of PD. In the current study we aim to evaluate whether …

Metaphors, Yibo Liu

Theses

Based on the student's growth background, the thesis paper compares the historical development of Shanghai and Rochester and explores their social status, as it may be defined within discarded objects in the urban landscape. The student believes that the traces contained by those abandoned objects bear witness to the transformations in the city as time has evolved. Inspired by the expressive mode of the "Internet Celebrity Exhibition," a popular artistic form in recent years, the student created three sculptures as a complete thesis show: "Cyber-revelry," "Dumpster," and "Waltz" These sculptures have an interactive relationship through the use of mechanical operations …

What Are Munster Technological University Students’ Experiences Of Menstruation And Reusable Period Products?, Kate Dolan Crowley

Theses

This study examines the attitudes of students in Munster Technological University (MTU) towards menstruation and period products. It is estimated that in Ireland, between 53,000 and 85,000 Irish menstruators may be at risk of period poverty (Government of Ireland, 2021). There is also evidence to suggest that some students have experienced period poverty (Ministry of Education, 2023; Brinkley and Niebuhr, 2022; Munro et. al., 2021). Period poverty has an impact on the physical, mental, and social well-being of menstruators, ultimately affecting their quality of life.

A mixed-method study was undertaken, consisting of questionnaires (n=319) and one-toone semi-structured interviews (n=10) to …

Screening And Analysis Of The Urobiome For The Production Of Antimicrobial Peptides To Target Uropathogenic Escherichia Coli, Jennifer Jones

Theses

Urobiome research is currently at a nascent stage, due to a previously incorrect assumption that the bladder is a sterile environment. Improvements in bacterial culturing and DNA sequencing techniques have revealed a diverse resident bacterial community within the urinary tract (urobiome). As global incidences of multidrug- resistant urinary tract infections (UTIs) continue to increase, so too does the demand for novel antimicrobial therapies. Due to its relatively understudied nature, the urobiome represents a reservoir that could be mined as a potential source of novel antimicrobial compounds (e.g., bacteriocins). The aim of this thesis was to identify urobiome bacteriocins that could …

Strategic Use Of Once-A-Day Milking For Pasture-Based Dairy Cows In Ireland, John Paul Murphy

Theses

The current perception of dairy farming in Ireland is one of long hours, physically demanding work and poor remuneration, especially when compared to that of a modern, high-tech industry with career opportunities and advancement possibilities at many levels (Teagasc, 2018). One of the biggest factors in attracting and retaining people to work on Irish dairy farms is that they must be desirable places to work (Teagasc, 2018). Milking is the most labour demanding task on Irish dairy farms (Deming et al., 2018) and one, which necessitates farmers being present on the farm twice daily if milking twice-a-day (TAD). Altering milking …

The Impact Of Data Quality On Beef Genetics, Shauna Walsh

Theses

Efficiency and profitability in the beef industry are driven by cattle live-weight, therefore, to optimise live-weight data it is essential to maintain consistency across data collection methods. Data for this thesis was collected from 97,780 Irish suckler herds across the years 2019 to 2022, inclusive, with a total of 1,311,870 calf and dam live-weight records available. Live-weight data originated from five different sources including: professionally-recorded, producer recorded using either owned, borrowed or hired weighing scales, or from an unknown recording source. The objectives of this thesis were to: i) identify anomalies within cattle live-weight data for both calf and dam, …

Characterisation Of Asymptomatic Bacteriuria (Abu) Isolates And Their Antimicrobial Activity Against Uropathogenic Escherichia Coli (Upec), Ciara Kenneally

Theses

Uropathogenic Escherichia coli (UPEC) is the most common aetiological agent of community and hospital-acquired urinary tract infections (UTIs). UTIs caused by E. coli result in considerable morbidity, mortality, and economic loss worldwide due to increasing resistance to antibiotics. Substantial efforts are being made to develop novel alternatives to conventional antibiotic therapies. One approach is the principle of bacterial interference; using low-virulence, or commensal, bacteria to prevent colonisation of pathogens by competing for nutrients, or producing antimicrobial compounds such as bacteriocins. E. coli isolates inducing asymptomatic bacteriuria (ABU) have been proposed as a therapeutic alternative for UPEC infection. ABU is a …

The Exploitation Of Genomic Information For Dairy And Beef Cattle Breeding, Cliona Ryan

Theses

Genotype information is now available for over 4 million Irish dairy and beef cattle, and is primarily used for parent verification and genomic evaluations. Additional benefits that can be generated from genomic data should be explored to maximise the respective return-on- investment. This thesis investigated novel approaches that leverage genome-wide genomic information in cattle, focusing on using the genotype data to accurately determine breed composition, to quantify the association between major genes and performance traits, and to identify karyotype abnormalities. Furthermore, the value of genotyping for the purpose of identifying genetically superior animals depends largely on the accuracy of the …

Development Of A Simulation Tool For Assessing Electrical Short Risks From Metallic Whiskers On Printed Circuit Boards Using Unity, Joseph Eric Black

Theses

Tin whiskers are metal strands that spontaneously form on tin surfaces and can grow up to a centimeter long. These whiskers can cause electrical shorts by breaking off and landing on circuit boards, yet there is limited simulation and analysis data regarding their shorting probability. This thesis presents a software tool developed using Unity, Blender, and FreeCAD to simulate the behavior of tin whiskers on PCBs. The tool accurately represents PCBs and whiskers, applying various forces to predict whisker landing positions and the impacted metal faces. By importing STEP files of PCBs, the software automatically sets up the simulation in …

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 …

Phylogeography, Speciation, And Cryptic Diversity In The Cave Springtail Pseudosinella Spinosa (Entomobryomorpha: Entomobryidae) From The Interior Low Plateau And Appalachian Valley & Ridge Karst Regions, Brendan Cramphorn

Theses

Caves offer a unique opportunity to study the ecology and evolution of life in extreme environments, particularly with respect to understanding patterns of diversity. Most cave-obligate species are dispersal limited and have restricted ranges, often endemic to a single or a few cave systems. However, a few species have particularly broad distributions suggesting that they either are not dispersal limited or perhaps represent a species complex of morphological similar but genetically distinct species. In this thesis, I explore morphological variation, phylogeography, and possibly cryptic diversity in Pseudosinella spinosa, a cave collembolan (springtail) that inhabits the Interior Low Plateau and Appalachian …

Potential Mechanisms Maintaining A Conspicuous Polymorphism In Eastern Mosquitofish (Gambusia Holbrooki), Katelyn Giltner

Theses

Genetic variation often precedes adaptation, so the mechanisms that maintain this variation are a central topic in evolutionary biology. Gambusia holbrooki, or eastern mosquitofish, possesses a rare polymorphism for melanistic coloration. Melanics and typical silver males were examined for differences in behavioral and physiological traits that may impact the persistence of the melanism trait. No differences in standard metabolic rate were found via closed-chamber respirometry, but a detour task indicated that melanic males possess greater cognitive flexibility. Effects of the social environment on stress and reproductive traits were also evaluated by pairing males and comparing cortisol levels and sperm quality …

Characterization And Analytical Prediction Of The Effective Elastic Modulus In Additively Manufactured Body-Centered Cubic Lattice Structures, Peyton Hall

Theses

Advancements in metal additive manufacturing have enabled the production of metal lattice structures. The customizability of the lattice topology offers the potential to yield lightweight materials with highly tailored thermal and mechanical properties. By building on well-established models of other cellular solids such as metal foams, the intricate structural behavior of these lattices is simplified to effective values for key mechanical properties which are given as a function of the relative density of the lattice as well as certain material and lattice parameters. It is intended that these effective values will be used to represent the lattice at a macroscopic …

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 …

Emerging Treatment And Prevention Options In Diet Through The Gut-Brain Axis, And Its Impact On Patients With Alzheimer’S Disease, Jewel Amrich

Theses

Objectives:

To outline the most recent data regarding diet in the role in moderating prevention and progression of Alzheimer’s disease using the relationship between the gut microbiome and central nervous system. In addition, the Mediterranean diet and the components that make up the diet, and those alike will be thoroughly discussed.

Evidence Acquisition:

Using key terms “Alzheimer’s Disease” and “Diet”, Web of Science searched for papers that were published between 2012 and 2023, which yielded 807 results. Refining the search to “Neurodegenerative Diseases” returned 292 results. Adding “Gut-brain axis”, “gut microbiome”, and “Mediterranean diet” to separate search inputs yielded 25 …

Reconstruct, Jenna Deal

Theses

This thesis explores how construction materials can be used in sculpture, pushing artistic boundaries and challenging traditional perceptions. It examines the potential of materials like mortar, PVC, HVAC duct, carpet, and asphalt roofing, aiming to redefine the relationship between labor, materials, and artistic expression. By breaking free from construction norms and engaging with materials in unexpected ways, the study aims to foster a deeper understanding of the value and creative possibilities inherent in the materials of our built environment.

Across The Pond, Lisa Larrabee

Theses

"A collection of stories inspired by the author's father; from his earlier childhood in Italy, to his emigration to the US around age 10 and to his adjustment in finding a balance as an Italian-American teen in the 50s, it includes his meeting / falling in love with the author's American mother and the ensuing circumstances of the culture clash from their relationship. This collection includes 5 historical fiction stories that are based heavily on factual stories, which are chronologically connected by 9 non-fiction pieces."