Digital Commons Network^™

Polytetrafluoroethylene (Ptfe) Vs. Ptfe-Free Coatings On Paper Label: Analysis Of Label Mechanical And Performance Properties, Chuqi Su

Theses

Post-printed water-based (WB) coatings, commonly known as aqueous coatings, have gained popularity for paper-based label manufacturing because of their environmentally friendly characteristics. Polytetrafluoroethylene (PTFE) is one of the common additives added to the WB coatings to achieve heat resistance and rub resistance properties for the final product. PTFE is a synthetic fluoropolymer of tetrafluoroethylene, and is a category of Polyfluorinated Substances (PFAS). As of January 2024, the sale of food packaging containing PFAS is prohibited in the state of Minnesota, with expectations that this regulation will extend to other states because of the proven harm of PFAS to both humans …

Effects Of Urban Borders On Synanthropic Mesopredator Movement And Risk Of Toxoplasma Gondii Infection In The Protected Lands Of Key Largo, Florida Usa, Kelly A. Crandall

Theses

Protected lands are an important source of food, shelter, and reproductive opportunities for wildlife, especially in urbanizing landscapes. When urban development abuts the edges of protected lands, synanthropic species can alter their foraging behaviors and movement to utilize human-supplemented resources throughout the urban-wild interface. Therefore, urban edges on protected lands can have pronounced effects on animal movement and ecosystem function. There is also increased risk of disease transmission where high densities of wild animals exist, or where domestic animals and wild species are interacting. In particular, members of the family Felidae, including domestic cats (Felis catus), can transmit the pathogenic …

The Role Of Food Ordering Systems In The Efficiency Of Food Distribution Through Food Banks: A Case Study, Turner Kamm

Theses

Introduction: Food banks face pressure to support an increasing number of food-insecure individuals, and to increase operational efficiency. This study reviewed the role of ordering systems in a food bank through a literature review and analysis of past ordering data. Methods: A literature review was conducted on the role of food ordering systems on efficient food delivery. Order data were categorized by month, county, and product category to assess transaction patterns. Analyses involved total pounds of food received by each county and a formula to calculate the percent of food insecure individuals served by county. Additional analyses compared items that …

An Investigation Of The Sub-Lethal Impacts To Pollinators From Pesticides, Emily Beahm

Theses

In order to feed a growing global population, agricultural practices must utilize pesticides to maintain high yields. Responsible use of pesticides should be based on literature confirming their efficacy and safety. When pesticides are not adequately investigated prior to their release, there can be severe consequences. Many highly effective pesticides, such as the class neonicotinoids, were allowed to be used commercially prior to thorough assessment of their environmental risks, resulting in consequences that largely have fallen to the exposed pollinator populations. To avoid similar outcomes, I tested the popular biopesticide Botanigard which contains Beauveria bassiana, an entomopathogenic fungus previously exposed …

Integrative Approaches To Evaluate Challenges Faced By Songbirds During Migration And Associated Physiological Trade-Offs, Gabriella L. Orfanides

Theses

Migration is a demanding time for birds, and birds face numerous physiological, behavioral, and environmental challenges. As migratory birds balance the costs of numerous stressors during migration, this could result in detrimental physiological trade-offs. Understanding the trials and trade-offs that birds encounter during migration has important conservation implications. I utilized two component studies to better understand challenges encountered by migratory songbirds as well as to identify physiological metrics that may provide insight into these challenges. For the first study, I used nested PCR and DNA sequencing to determine parasite prevalence and diversity of avian haemosporidians in Canada Warblers (Cardellina canadensis) …

Exploring The Functional Significance Of A Yap1 Missense Variant Of Uncertain Significance In Caenorhabditis Elegans, Nathan Jones

Theses

Polycystic ovary syndrome (PCOS) is a complex disorder with various implications, such as polycystic ovaries, visceral obesity, and increased risk of cancer. YAP1 was recently identified as a gene of interest in the development of PCOS. Researchers have established that single nucleotide variants in YAP1 are likely to play a role in PCOS development. This project aims to provide insight into the potential impact of a YAP1 variant of uncertain significance (VUS). Studies in C. elegans have established yap-1 as a nematode ortholog for human YAP1. A YAP1 VUS was identified through ClinVar, YAP1 c.1015A>G (p.Asn339Asp). Evolutionary conservation …

Effects Of Simulated Climate Change On Native Southeastern Grassland Vegetation Using Open Top Chambers, Makaila Carpenter

Theses

The southeastern United States is a critical biodiversity hotspot once covered in prairie grassland ecosystems and now facing significant threats due to urbanization, habitat destruction, over-exploitation, biological invasions, pollution, and climate change. This study analyzes the response of Alabama’s native prairie ecosystem to climate change. We used open top chambers (OTCs) to simulate climate change-induced warming. We assessed the response of ecosystem function and structure to higher temperatures (1-3^oC). The indicators of ecosystem function included phenology, leaf surface area (LSA), specific leaf area (SLA), and aboveground and below net primary productivity (ANPP and BNPP respectively). Ecosystem structure was …

Effects Of Vitis Vinifera L. Seed Extract On Short-Term Memory Of Amyloid-Beta-Mediated Neurodegeneration In Transgenic Caenorhabditis Elegans, Elise Patrick

Theses

Alzheimer's disease (AD) is a neurodegenerative condition that is a common cause of dementia and a growing concern worldwide with no effective treatment or cure. Two pathological AD hallmarks include buildup of amyloid beta (Aβ) plaques and neurofibrillary tangles in the brain. Recent attention has turned to exploring natural products and compounds for AD symptom relief and treatment. Vitis vinifera grape seed extract (GSE) contains many beneficial substances. GSE has been tested in several animal models and has shown to improve memory and is even being examined in an AD treatment human clinical trial. In this study, the aim was …

Music Education In The Urban Classroom: Issues Of Equity And Access, Lakeisha Walker

Theses

Music education in urban classrooms plays a crucial role in shaping students' overall development and academic success. The field of music education is not immune to the challenges of equity and access that exist in urban settings. It is essential to address these issues to ensure that all students have equal opportunities to participate in music programs and reap the countless benefits that come with them.

The importance of this topic in the field of music education cannot be overstated. Research has shown that students who participate in music programs demonstrate improved academic performance, enhanced cognitive skills, and increased creativity. …

Elucidation Of Potential Antimicrobial Properties Of Chalcones, Caleb Howell

Theses

The rise of antibiotic-resistant bacteria is a growing concern for the medical and biological community. Increased use of antibiotics has led to increased development of bacterial tolerances. This phenomenon, driven by the principles of evolution, has been exacerbated by the improper antibiotic use of these antibiotics. Often, individuals stop taking antibiotics once symptoms subside, mistakenly believing the infection is cured. This practice allows bacteria or fungi to develop resistance.

These antibiotics have been developed from secondary metabolites. While we have many effective antibiotics we are facing new threats. Chalcones are being looked at for their potential in addressing this issue. …

The Effect Of Angiogenesis On Thermal Properties Of In-Vivo Human Tissue, Shriya Musuku

Theses

Bioheat transfer is the study of heat transfer in biology. There are several sources of heat in biology including external ones such as surgical applications of heat, or internal ones like cancer tissue. Blood flow networks affect both types of processes and are often generated during disease phenomenon through a process called angiogenesis. This affects the properties of the tissue. Several attempts were made to model flow and heat transfer within various tissues through physical measurements or computer simulations. Both types of models used bioheat transfer models do not consider the geometry of vasculature at its most fundamental level. The …

Sustainable Energy Access And Irrigation Planning In Sub Saharan Africa, Fhazhil Wamalwa

Theses

Sub-Saharan Africa (SSA) is the least developed and most vulnerable region to climate change globally, with electricity access and irrigation rates at 45% and 5%, respectively. The region's high reliance on rain-fed farming results in significant yield gaps, increasing dependence on food imports and aid. Projected declines in rainfed agricultural productivity due to climate-induced rainfall variability, coupled with a rapid population growth rate of 2.8% per year, will likely exacerbate food insufficiency. SSA is largely rural, with an urbanization rate of 42%. Much of its population lives in sparsely populated settlements characterized by low electricity demand, which poses a significant …

Salivary Microbiome Signature In Pediatric Inflammatory Bowel Disease, Ghaidaa Mohammed Mesto

Theses

Inflammatory bowel disease (IBD) is a complex disorder characterized by chronic inflammation of the gastrointestinal tract (GIT). IBD mainly includes two distinct diseases, namely Crohn’s disease (CD) and ulcerative colitis (UC). To date, the precise etiology of these conditions is not fully elucidated, although a strong relationship between microbial dysbiosis in the GIT and IBD has been proposed. In general, limited data is available on the oral microbiome of IBD patients, despite its recognizable role in impacting gut health. There is a paucity of research on IBD in the pediatric population, although this disease is becoming more prevalent than in …

Pharmacogenomic Biomarkers Of Angiotensin Converting Enzyme Inhibitors (Aceis) Induced Cough Among Healthy Emiratis And Multi-Ethnic Hypertensive Patients, Sahar Mohammad Altoum

Theses

Pharmacogenomics (PGx) is an emerging field that merges genetics with pharmacology. It focuses on how an individual's genetic makeup influences their response to specific medications. This relatively new area of medicine seeks to understand the genetic factors that affect drug efficacy and safety. One practical application of PGx is in the context of treatment with angiotensin-converting enzyme inhibitors (ACEIs), which are widely used medications for managing hypertension. However, ACEIs are often associated with cough as a side effect, leading to drug discontinuation and the adoption of alternative medications like Angiotensin II receptor blockers (ARBs). The prevalence of ACEIs-induced cough varies …

Functional Characterization Of Potato Arp1 Gene Encoding Auxin-Repressed Protein, Sara Ali Alneyadi

Theses

Auxin-repressed proteins (ARPs) are conserved in higher plants and are involved in plant growth and development by controlling gene expression. ARP1 has been studied for its role in biotic stress response, but its role in abiotic stress response remains unclear. In this study, transgenic Arabidopsis plants expressing potato (S. tuberosum) ARP1 were evaluated for their salinity stress response. By gradually increasing NaCl concentrations from 0 to 200mM, plants were subjected to high salinity stress. As compared to wild-type (WT) control plants under stressed conditions, the ARP1 transgenic plants demonstrated improved height and root length and higher chlorophyll content. Under …

Characteristics Of Lactobacillus Helveticus Fermentation Of Camel And Bovine Milks, Kobika Chelladhurai

Theses

In this study, the fermentation of low-fat camel milk (CM) and bovine milk (BM) with Lactobacillus helveticus was compared to fermentation with L. delbrueckii subsp. bulgaricus, and S. thermophilus at 28°C, 35°C, and 42°C. The fermentation activities were followed by measuring bacterial counts, titratable acidity, pH, and changes in lactose, organic acids, and proteolysis for 96 hours. Although bacterial growth was comparable in CM and BM, the fermented milks showed differences in acidification and proteolysis. Negative correlations between TA (%) and pH were consistent in both CM and BM suggesting similar buffering capacities. In both milks, L. helveticus …

Relationship Between Parents’ Feeding Styles, Nutrition Practices And Risk Of Obesity Among 3-5 Years Old Children In The United Arab Emirates, Reem Mohamed Alkarbi

Theses

Previous studies suggest that parental feeding practices shape preschool eating and physical activity habits, ultimately influencing children's weight status. Despite the high obesity rate in UAE youth, preschoolers’ nutrition habits and their links to parental feeding styles are explored. This study aims to describe parental feeding styles: Emotional (E), Instrumental (I), Prompting and Encouragement (PE), Control Over Eating (COE)), and their associations with nutrition practices, socio-demographic factors, and obesity in UAE preschoolers. Using an online questionnaire, a cross-sectional study surveyed Emirati families with 3-5-year-old children. Data was analyzed using SPSS v.29. 70 preschool Emirati children living in Abu Dhabi participated. …

Strawberry Nectar Preservation Through Innovative Techniques And Energy Evaluation For High-Pressure Processing, Caterina Scaioli

Theses

Strawberries are universally adored by people of all ages, owing to their richness in vitamins, nutrients, and antioxidants, offering myriad health benefits, including combating free radicals. However, despite their popularity, strawberry juices or nectars are not commonly found in markets due to their delicate structure, which makes them prone to rapid deterioration of their prized qualities and vibrant red color. In the food industry, preventing browning and nutrient deterioration are often the primary challenges faced when processing red juices. Traditional preservation methods, such as pasteurization, are inadequate in maintaining their freshness. The focus of this study is to explore alternative …

Selenate-Mediated Impacts On Mercury Methylation By Pseudodesulfovibrio Mercurii With Dissolved And Nanoparticulate Mercuric Nitrate, Md Sayeduzzaman Sarker

Theses

Inorganic mercury (Hg) is converted to potential neurotoxic methylmercury (MeHg) by a natural process called Hg methylation. MeHg can be biomagnified in the food chain, thus the consumption of Hg-contaminated fish contributes to harmful human health issues. Selenium (Se) inhibits the Hg bioavailability to the methylating bacteria by forming mercuric selenide (HgSe). Pseudodesulfovibrio mercurii, a type of sulfate-reducing bacteria (SRB) cultures were grown in anaerobic environments using an estuarine sulfate lactate growth medium to evaluate the effects of Hg concentrations, bacterial growth phase, and sodium selenate in the Hg methylation process. Bacterial cultures contained two types of mercuric (II) nitrate, …

Effect Of Strategic Blending Of Food Industry By-Products With Protein Supplements On Performance Of Growing And Finishing Beef Cattle, Richard Augustine Atedi Bien

Theses

The objective of this research was to evaluate the impact of strategical blending of by-products of pea protein extraction such as pea molasses (PMS) and pea starch and fiber (PSF) with canola meal (CM) or distillers dried grains (DDGS) on the growth performance, rumen fermentation, and total tract nutrient digestibility of beef cattle. Preliminary evaluation (study 1) involved 4 runs of in vitro and two runs of in situ to evaluate the rumen fermentation and nutrient degradation of strategically blended CM. The treatments included regular CM (CM), CM blends containing PMS and PSF at 5% (CM5) and 10% (CM10) levels …

Supercook: Design Interactive Culinary Experiences With Ai Technology, Yize Peng

Theses

The project 'SuperCook' is a groundbreaking design project that explores the integration of AI with culinary apps. It aims to revolutionize the kitchen experience by connecting users to new and accessible culinary adventures through personalized recipe recommendations, real-time cooking guidance, and interactive meal planning. By leveraging AI technology, 'SuperCook' not only enhances user convenience and efficiency but also fosters a deeper engagement with cooking and promotes healthier eating habits. This thesis delves into the design process, user testing, and iterative improvements that culminated in a user-centered, intuitive, and visually appealing UI/UX solution for modern cooking enthusiasts. In designing 'SuperCook,' attention …

Exploring The Potential Pathogenicity Of A Type 2 Diabetes Mellitus Associated Insr Missense Variant Of Uncertain Significance Through Daf-2 In The Caenorhabditis Elegans Model, Brittany White

Theses

Type 2 diabetes mellitus (T2DM) is hallmarked by insulin resistance, with the INSR gene identified as a key player in this condition in humans. This gene is known to harbor genetic variants with a wide range of clinical significance from pathogenic to variants of uncertain significance (VUS) to benign. This project investigates a VUS associated with T2DM identified through ClinVar. A gene mutational analysis, predictive amino acid substitution analysis, and protein modeling predict INSR c.1628C>T (p. Thr543Met) to be likely pathogenic or damaging. PolyPhen-2 predicts this variant to be probably damaging (HumDiv score of 1.000).

Evolutionary conservation of the …

Investigating Essential Oils, Natural Compounds, And Marine Based Rumen Buffers As Feed Additives For Enteric Methane Mitigation And Improved Ruminant Productivity, Ian Hodge

Theses

Ruminant dietary additives were investigated for enteric methane (CH4) mitigation and their effects on rumen fermentation characteristics during both in vitro and in vivo supplementation trials. A meta-analysis of the peer reviewed published literature was initially performed to establish the state of the art in the field and allowed benchmarking of the performance of the dietary additives screened during the project. Investigated feed additives included garlic oil (GO), nitrate, Ascophyllum nodosum (AN), Asparagopsis (ASP), Lactobacillus plantarum (LAB), calcareous marine algae (CMA), chitosan (CHI), essential oils (EO) and 3-nitrooxypropanol (3-NOP). The development of an in vitro screening method to evaluate the …

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 …

Enhancing Cybersecurity Awareness In The United Arab Emirates: An Assessment Of Current Practices And The Development Of An Ai-Enhanced Mobile Application, Meera Humaid Alalawi

Theses

In today's interconnected world, individuals, private corporations, public institutions, and governments face increasingly sophisticated cyber threats and attacks, highlighting the critical need for individuals and organizations to understand cybersecurity comprehensively. Cyberattacks have affected many countries and infrastructures in different sectors worldwide, including the United Arab Emirates (UAE), which has become a main target for cybercrime due to its booming economy and tourism. The UAE considers cybersecurity an increasingly critical issue in our digital world, and increasing cybersecurity awareness among residents is essential to protect themselves and their organizations from cyberattacks. The primary objectives of this study are to identify key …

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 …

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 …

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 …