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Modeling The Egyptian Goose (Alopochen Aegyptiaca) Invasion; And Future Concerns, Percival Matzinger Marshall Aug 2023

Modeling The Egyptian Goose (Alopochen Aegyptiaca) Invasion; And Future Concerns, Percival Matzinger Marshall

Graduate Theses and Dissertations

In an increasingly interconnected world, the ecological and financial cost of invasive species is expected to continue to climb through the movement of exotic biota. Understanding the driving forces behind how a species invades, what environments promote their establishment, and what impacts they are likely to have on the invaded environment are all critical for management. Waterfowl, order Anseriformes, are one such category of invasive species of concern due to their popularity of accidental introduction, ease of movement, and propensity to affect both terrestrial and aquatic ecosystems. The Egyptian Goose (Alopochen aegyptiaca) is a native to the African continent that …


Shedding In The Timber Rattlesnake: Natural Patterns, Endocrinological Underpinnings, Temporal And Energetic Effort, And Integration As A Reptilian Life History Trait, Maxwell D. Carnes-Mason Aug 2023

Shedding In The Timber Rattlesnake: Natural Patterns, Endocrinological Underpinnings, Temporal And Energetic Effort, And Integration As A Reptilian Life History Trait, Maxwell D. Carnes-Mason

Graduate Theses and Dissertations

The semi-frequent replacement of the epidermis (ecdysis) is a characteristic trait of reptiles. Whereas all reptiles regularly engage in some degree of skin shedding, skin morphology in snakes necessitates the synchronous replacement of the entire epidermis and facilitates the subsequent removal of the old layer as a single sheet. To date, the ubiquitous process has garnered little attention from researchers because snakes shed with unpredictable timing and frequency and are exceedingly cryptic during ecdytic cycles; previously impeding detailed physiological or ecological investigations of the process in the clade. Because of the lack of study, ecdysis is often viewed as a …


Non-Energy Circular Economy Potential Of Rice Husks: A Techno-Eco-Environmental Assessment, Winfred Oppong Yeboah Aug 2023

Non-Energy Circular Economy Potential Of Rice Husks: A Techno-Eco-Environmental Assessment, Winfred Oppong Yeboah

Graduate Theses and Dissertations

The non-energy circular bioeconomy potential of rice husks was examined via sustainability assessments, namely life cycle assessment (LCA), life cycle impact cost assessment (LCICA), and techno-economic assessment (TEA). The study was conducted with three objectives. The first objective was to review previous studies on the non-energy utilization potential of rice husks by the method of meta-analysis. This review followed a systematic approach where research papers were collected following a defined set of criteria. The study revealed 16 key utilization pathways, all of which showed promising results. However, a comprehensive sustainability assessment was lacking in all of the pathways. The second …


Runoff Water Quality And Crop Growth As Affected By Wastewater-Derived Struvite, Machaela Morrison Aug 2023

Runoff Water Quality And Crop Growth As Affected By Wastewater-Derived Struvite, Machaela Morrison

Graduate Theses and Dissertations

Mined phosphate rock, used to produce phosphorus (P) fertilizers, is a finite resource. Struvite (MgNH4PO4 • 6H2O) that has been synthetically produced from a stock solution of known P and nitrogen (N) concentrations has been shown to be an effective, alternative fertilizer-P source for various crops. However, little is known about the runoff-water-quality implications from and the crop response to soil application of struvite created from an actual municipal wastewater source. This study consisted of two objectives: i) to evaluate the effects of soil [i.e., Creldon (Oxyaquic Fragiudalf), Dapue (Fluventic Hapludoll), Roxana (Typic Udifluvent), and Calloway (Aquic Fraglossudalf) series], fertilizer-P …


Investigation Of Consumer Freezing Practices, Condition And Duration On Palatability Of Beef, Elizabeth Sue Neal Aug 2023

Investigation Of Consumer Freezing Practices, Condition And Duration On Palatability Of Beef, Elizabeth Sue Neal

Graduate Theses and Dissertations

The objective of these studies was to determine: the impact of extended periods of frozen storage duration and packaging type on palatability traits of cooked beef steaks from two muscles and the impact of freezing type and storage duration on objective and subjective measures of ground beef palatability traits. In study 1, no differences were elicited from any of the possible interactions (P= 0.95) for SSF or CL: package × muscle × freezing duration, package × muscle, package × duration or muscle × duration. However, freezing duration did impact both SSF (P < 0.01) and CL (P < 0.001). Generally, for both SSF and CL steaks that were frozen for 9-months elicited both the highest SSF values as well as the greatest percentage of CL among all treatments. In comparison, EM was impacted by the interaction (P = 0.059) of packaging type  muscle  freezing duration. Samples from OW GM stored for 9-months elicited the highest percentage of EM while fresh OW LL samples resulted in the lowest. Additionally, expressible moisture was impacted by the interaction (P = 0.047) of muscle  freezing duration. Among all treatments, GM steaks that were frozen for 9-months elicited the highest EM values and fresh LL samples the lowest EM values. Contrastingly, there was no significant difference observed in expressible moisture for the interaction (P  0.18) of package type  freezing duration or for the interaction (P = 0.70) of package type  muscle. Generally, fresh OW GM steaks resulted in the greatest concentration of lipid derived volatile compounds such as aldehydes, hydrocarbons and alcohols which contrasted sensory ratings of trained panelists that indicated oxidized and refrigerator-stale ratings increased as storage time increased for OW steaks. In study 2, The interaction of freezer treatment × storage duration impacted gumminess (P = 0.05), a TPA attribute. In greater detail, samples stored in RF for 6-months resulted in the greatest gumminess values (P < 0.001), while those stored in the CF for 12-months elicited the lowest (P < 0.001). Similarly, flavor development was also impacted by the interaction (P = 0.05) of freezer treatment × storage duration. Three lipid derived compounds were of greatest concentration among RF patties stored for 1-month. In contrast, the interaction of freezer treatment × storage duration elicited no impact on consumer ratings, SF or TBARS. Nonetheless, frozen storage duration impacted TPA, flavor development, consumer ratings, SF and TBARS as a main effect (P < 0.05), especially in regard to tenderness and juiciness. Moreover, beef flavor development, tenderness and juiciness are impacted by freezing duration, muscle, freezer type and packaging, however these factors are not necessarily independent of one another. Furthermore, the retail display period is a critical period for fresh beef steaks, especially when packaged in aerobic conditions. For optimal eating experience, beef products should be stored for extended periods in a vacuum packaging, in a designated freezer that is not opened frequently to allow for optimal air flow regulation and minimize freezer burn to improve tenderness and juiciness.


Securing Rice Safety Through Innovative Radiative Heat Treatment And Proper Storage, Faith Achieng Ouma Aug 2023

Securing Rice Safety Through Innovative Radiative Heat Treatment And Proper Storage, Faith Achieng Ouma

Graduate Theses and Dissertations

Securing the microbial safety of rice is a rising priority within the food industry, especially when used as an ingredient to manufacture ready-to-eat, minimally-processed products. Mold contamination is typically the most problematic for rice because certain species of Aspergillus produce toxic secondary metabolites known as aflatoxins, rendering the grain unfit for human and animal consumption. The objectives of this study are to: (1) investigate the effectiveness of using high-power (915 MHz frequency), short-duration microwaves (MWs) to inactivate microbes on rough rice; (2) use a three-level screening design to determine which storage factors, such as temperature, relative humidity (RH), storage duration, …


Presentation Matters: Effects Of Presentation Order Of Personality Feedback And Need For Structure On Participant Response To Feedback, Alita Marie Mobley Tu Aug 2023

Presentation Matters: Effects Of Presentation Order Of Personality Feedback And Need For Structure On Participant Response To Feedback, Alita Marie Mobley Tu

Graduate Theses and Dissertations

Psychological assessment plays a vital role in differential diagnosis, treatment planning, and measurement of treatment effectiveness. Insufficient or ineffective feedback to the client can limit the utility of psychological assessment. Finn and Tonsager (1997) advise that assessment feedback will be best received when the feedback content is ordered to start with information that is most consistent with the client’s existing self-concept to information that is the most discrepant from their self-concept. There is minimal empirical support for this practice recommendation. The current study investigates the relationship between presentation order of personality feedback and participant response to feedback (i.e., feedback evaluations, …


Live Music Venue Marketing In A Post-Covid Northwest Arkansas, Griffen Walden Aug 2023

Live Music Venue Marketing In A Post-Covid Northwest Arkansas, Griffen Walden

Graduate Theses and Dissertations

What does a medium sized music venue, nearing its centennial in a college town, do when its doors have closed for the first time since a short 2004 renovation, due to the novel Coronavirus Pandemic? George’s Majestic Lounge, the historic live music venue located in the heart of downtown Fayetteville, Arkansas, ceased operation for 134 days, its longest ever closure, and emerged into a climate massively different from what it had entered the pandemic in (Drury, et al. 2021). This venue has stood the test of time; opened in 1927 by George Pappas, it has remained in its railroad-adjacent position …


Commonalities In Evidence-Based Instructional Strategies For Autism Spectrum Disorder And English Language Learners, Kimberly Michelle O'Mara Aug 2023

Commonalities In Evidence-Based Instructional Strategies For Autism Spectrum Disorder And English Language Learners, Kimberly Michelle O'Mara

Graduate Theses and Dissertations

Many English language learners experience life on the Autism spectrum. These students will spend much of their day in the general education setting, and teachers will need effective and proven strategies to support them. The data show that Autism Spectrum Disorder is increasing among all populations (CDC, 2023). Current understandings and influences on these learners will be explored. This review examines evidence-based practices presented by premier sources in the fields of Autism Spectrum Disorder and English language learning, seeking commonalities in strategies. Using the findings from the National Standards Report and the National Clearinghouse for Autism Evidence & Practice cross-referenced …


Cultural Competence Among Child Life Professionals, Rachel Burger Aug 2023

Cultural Competence Among Child Life Professionals, Rachel Burger

Graduate Theses and Dissertations

There is an ever-growing need for individuals to work towards cultural competence, especially when those individuals work in healthcare. As healthcare professionals with backgrounds in child development and who provide emotional and psychological support to diverse pediatric patient populations in a variety of different sectors, child life specialists (CLS) and Certified Child Life Specialists (CCLSs) have an even greater need for understanding cultural competence (Thompson, 2009). The purpose of the current study was to examine the cultural competency levels of CCLSs, the type of cultural competence professional development units (PDUs) they participate in, and their perspectives on cultural competence in …


Investigating And Characterizing Septin Cellular Regulators During Infection Related Development In M. Oryzae, Rinalda Proko Aug 2023

Investigating And Characterizing Septin Cellular Regulators During Infection Related Development In M. Oryzae, Rinalda Proko

Graduate Theses and Dissertations

The fungus Magnaporthe oryzae causes a devastating disease of rice and wheat, called blast, which poses a major threat to food security across the planet. To enter plant tissue, M. oryzae produces a remarkable pressure-generating infection cell called an appressorium, which mechanically ruptures the tough cuticle of host leaves through the application of enormous physical force directed onto a narrow penetration structure emerging from its base. Importantly, appressorium form and functionality depends on the regulated assembly of a toroidal ring-like structure, composed of septins, which forms within its base. Septins are a family of membrane-associated GTP-binding proteins that polymerize into …


Who Sings And Who Falls Silent? A Spatial And Social Analysis Of Virgilian Graffiti In Pompeii, Rachel Murray Aug 2023

Who Sings And Who Falls Silent? A Spatial And Social Analysis Of Virgilian Graffiti In Pompeii, Rachel Murray

Graduate Theses and Dissertations

This study analyzes Pompeian domestic spaces in which graffiti that quote the works of Virgil have been found. This is particularly compelling because of the Aeneid’s status as a ‘national epic,’ simultaneously ‘high’ culture and seemingly part of the ‘common’ imagination. In the past scholars have argued that the presence of Virgilian graffiti was not indicative of widespread interaction with Virgil, and that a select few individuals were responsible for these quotations. Drawing from ideas proposed by modern graffiti studies and spatial theorists and employing the methodology developed by the Virtual Pompeii Project, this study uses network analysis measures to …


Screening A Set Of Tomato Genotypes For Resistance To Bacterial Wilt And A Genomic Wide Association Study And Genomic Prediction For Yield-Related Traits In ‘Lcp 85-384’. I. Sugarcane, Theresa Makawa Phiri Aug 2023

Screening A Set Of Tomato Genotypes For Resistance To Bacterial Wilt And A Genomic Wide Association Study And Genomic Prediction For Yield-Related Traits In ‘Lcp 85-384’. I. Sugarcane, Theresa Makawa Phiri

Graduate Theses and Dissertations

This thesis comprises two studies that focused on screening tomato genotypes for bacterial wilt resistance and a genome-wide association study and genomic prediction for yield-related traits in sugarcane with the aim of contributing to the breeding programs. In the first chapter, 40 tomato accessions from the USDA collection were evaluated for their resistance to Ralstonia solanacearum isolate P822 under controlled greenhouse conditions. The plants were inoculated, and disease symptoms were visually assessed. Disease severity was rated on a scale of 0 to 4, where 0 represented no wilting and 4 indicated complete leaf wilting. Among the tested accessions, five (PI …


Consumer Valuation Of Rice Quality In Colombia, Juliann Phillips Aug 2023

Consumer Valuation Of Rice Quality In Colombia, Juliann Phillips

Graduate Theses and Dissertations

Rice is a crucial contributor to global food security and is an important staple for over half the world’s population. In Colombia, total rice consumption has grown by 25% in the last decade (2011-2021), reaching 1.9 MMT in 2021, yet in 2021 around 15.5 million Colombians were classified as food insecure. Colombia is the third largest rice producer in Latin America, producing 1.8 million metric tons (milled basis) in 2021. Increasing rice consumption coupled with high levels of food insecurity highlights the necessity that rice markets effectively price rice according to consumer preferences. Therefore, the goal of this study focuses …


Unraveling The Biogenesis And Roles Of Iron-Sulfur Proteins During Nitrogen Fixation By Methanosarcina Acetivorans, Jasleen Saini Aug 2023

Unraveling The Biogenesis And Roles Of Iron-Sulfur Proteins During Nitrogen Fixation By Methanosarcina Acetivorans, Jasleen Saini

Graduate Theses and Dissertations

Iron-sulfur (Fe-S) clusters, the ancient cofactors found in proteins across all life forms, play vital roles in numerous cellular processes. Fe-S clusters exhibit structural diversity, ranging from simple to complex forms. Methanogens are anaerobic archaea that produce methane as a metabolic by-product through methanogenesis, a process dependent on numerous Fe-S proteins. Notably, methanogens are capable of fixing nitrogen (diazotrophy) facilitated by the enzyme complex called nitrogenase, which contains both simple and complex Fe-S clusters. While methanogens possess the largest number of Fe-S proteins, the factors involved in Fe-S cluster biogenesis remain largely unknown. Bacteria possess three distinct and well-characterized Fe-S …


Liquid Crystalline Coacervates Composed Of Chromonic Mesogens And Polyelectrolytes, Elizabeth Adeogun Aug 2023

Liquid Crystalline Coacervates Composed Of Chromonic Mesogens And Polyelectrolytes, Elizabeth Adeogun

Graduate Theses and Dissertations

Complex coacervates are formed by liquid-liquid phase separation of an aqueous solution of oppositely charged ions. Although several mixtures of molecules of natural and synthetic macro-ion have been shown to form complex coacervates, the formation of liquid crystalline (LC) coacervates are sparsely reported. LC coacervates have a unique property in that they can change their shape and optical property in response to external stimuli such as changes in temperature, pH, or the presence of specific molecules. This property makes LC coacervates useful as a sensor, as they can be engineered to respond to specific stimuli and generate a measurable signal …


Understanding Peripheral Blood Pressure Signals: A Statistical Learning Approach, Md Abul Hayat Aug 2023

Understanding Peripheral Blood Pressure Signals: A Statistical Learning Approach, Md Abul Hayat

Graduate Theses and Dissertations

Proper estimation of body fluid status for human or animal subjects has always been a challenging problem. Accurate and timely estimate of body fluid can prevent life threatening conditions under trauma and severe dehydration. The main objective of this research is the estimation, classification and detection of dehydration in human and animal subjects using peripheral blood pressure (PBP) signals. Peripheral venous pressure (PVP) and peripheral arterial pressure (PAP) signals have been investigated in this research. Both PVP and PAP signals are PBP signals. A dataset of PVP signals was collected using standard peripheral intravenous catheters from human subjects suffering from …


Poly(Ionic Liquid)S For Magnetic, Ionic, And Electrical Stimuli-Responsive Applications, Kayla Ann Foley Aug 2023

Poly(Ionic Liquid)S For Magnetic, Ionic, And Electrical Stimuli-Responsive Applications, Kayla Ann Foley

Graduate Theses and Dissertations

Poly(ionic liquid)s (PILs) are a fascinating subclass of strong polyelectrolytes formed from polymerizable ionic liquids. As a result of their unique properties and counterion exchangeability, PILs can exhibit conformation structure or material property changes in response to external stimuli such as changes in pH/ionic environment, magnetic fields, and electric potentials. In Chapter 1, a comprehensive review of PILs design as well as their stimuli-responsive behavior is provided. Additional motivation for each dissertation chapter is also discussed. In Chapter 2, magnetically responsive PILs (MPILs) are developed from complexing paramagnetic salts with a random PIL copolymer containing a metal-coordinating co-monomer, acrylamide. A …


A Pilot Study Of Students’ Ethical Decision Making And Emotional Intelligence, Casandra K. Cox Aug 2023

A Pilot Study Of Students’ Ethical Decision Making And Emotional Intelligence, Casandra K. Cox

Graduate Theses and Dissertations

Demand for ethical leaders in agriculture is high to meet 21st century goals, while ethics course offerings in land-grant institutions are limited. The purpose of this case study was to establish a baseline of current University of Arkansas Bumpers College of Agriculture, Food and Life Science (Bumpers College) agriculture and natural resource program students’ ethical decision making (EDM), as measured by the DIT-2, and emotional intelligence (EI), as measured by STEM-B and STEU-B, determine if EI mean scores predict EDM, and identify relationships between EDM or EI and demographic characteristics or lifespan experiences. An online survey design with probability sampling …


Sharing Economy Last Mile Delivery: Three Essays Addressing Operational Challenges, Customer Expectations, And Supply Uncertainty, Nicolò Masorgo Aug 2023

Sharing Economy Last Mile Delivery: Three Essays Addressing Operational Challenges, Customer Expectations, And Supply Uncertainty, Nicolò Masorgo

Graduate Theses and Dissertations

Last mile delivery has become a critical competitive dimension facing retail supply chains. At the same time, the emergence of sharing economy platforms has introduced unique operational challenges and benefits that enable and inhibit retailers’ last mile delivery goals. This dissertation investigates key challenges faced by crowdshipping platforms used in last mile delivery related to crowdsourced delivery drivers, driver-customer interaction, and customer expectations. We investigate the research questions of this dissertation through a multi-method design approach, complementing a rich archival dataset comprised of several million orders retrieved from a Fortune 100 retail crowdshipping platform, with scenario-based experiments. Specifically, the first …


Do Fas Large Export Sales Reports Move Commodity Futures Markets?, William Johnson Aug 2023

Do Fas Large Export Sales Reports Move Commodity Futures Markets?, William Johnson

Graduate Theses and Dissertations

This study sought to determine if the Large Export Reports from the USDA Foreign Agriculture Service have any discernible market-moving impact on particular commodity futures markets. The effect of the reports on futures markets is investigated using four different methods: the average return event study approach, the multiple regression with binary variables model, the autoregressive time series model, and the event spline model. The average returns showed that the FAS's Large Export Sales Reports had no influence on the pricing of wheat futures, but did have a considerable impact on the returns from days before and after the release of …


Chip- And System-Level Reliability On Sic-Based Power Modules, Pengyu Lai Aug 2023

Chip- And System-Level Reliability On Sic-Based Power Modules, Pengyu Lai

Graduate Theses and Dissertations

The blocking voltage, switching frequency and temperature tolerance of power devices have been greatly improved due to the revolution of wide bandgap (WBG) materials, such as silicon carbide (SiC) and gallium nitride (GaN). Owing to the development of SiC-based power devices, the power rating, operating voltage, and power density of power modules have been significantly improved. However, the reliability of SiC-based power modules has not been fully explored yet. Thus, this dissertation focuses on the chip- and system-level reliability on SiC-based power modules. For chip-level reliability, this work focuses on on-chip SiC ESD protection devices for SiC-based integrated circuits (ICs). …


Market Outlet Choices Of Small-Scale Fruits And Vegetables Producers In Arkansas, Grace Sivilondire Mahamba Aug 2023

Market Outlet Choices Of Small-Scale Fruits And Vegetables Producers In Arkansas, Grace Sivilondire Mahamba

Graduate Theses and Dissertations

This thesis comprises two studies investigating the market outlet choices of small-scale fruit and vegetable producers in Arkansas. By examining the marketing decisions of producers in the region, the objective was to profile producers based on their utilization of different available outlets and identify the factors influencing their decisions regarding where to sell their products. Data from a survey conducted in the Ozark Mountain Region (comprising Arkansas, Southern Missouri and Eastern Oklahoma) during Fall of 2022 were analyzed using k-means clustering to classify producers based on their characteristics, thus establishing distinct producer profiles. Multinomial logit regression was employed to determine …


Non-Physical Abuse In Sports: Organizational Culture’S Role, Ian O'Rourke Aug 2023

Non-Physical Abuse In Sports: Organizational Culture’S Role, Ian O'Rourke

Graduate Theses and Dissertations

The purpose of this study was to explore the perceptions of sport professionals who worked in organizations that tolerated non-physical abuse. This qualitative study used active interviewing and grounded-theory design to guide the data collection and coding efforts. The data identified emerging themes to generate essential theory. The research collected data through interviews with 10 sport professionals. This phenomenological study looked at sport professionals’ experiences who worked at private sport organizations and those that worked within a university athletic department. Interview responses illustrated that all participants experienced comparable treatment and felt similarly to the non-physical abuse taking place. An interesting …


Seeking And Providing Social Support In Online Forums For Individuals Experiencing Depression, Anna Gentry Aug 2023

Seeking And Providing Social Support In Online Forums For Individuals Experiencing Depression, Anna Gentry

Graduate Theses and Dissertations

This thesis project investigates how individuals suffering from depression seek support, provide support, and describe experiences of stigma in an online support platform. A phronetic-iterative and constant comparative approach guided an in-depth analysis of 37 posts on a discussion board designed for individuals with depression. The findings demonstrated that individuals use online discussion forums to request support both implicitly and explicitly. In response to sought support, individuals provided informational, emotional, and network support. Finally, discussion board participants discussed social and self stigma. Despite the limitations of the study, the findings indicate the utility of online social support platforms for individuals …


Understanding The Environmental And Genetic Influence On Fluctuating Asymmetry And Developmental Instability In Primates, Ashly N. Romero Aug 2023

Understanding The Environmental And Genetic Influence On Fluctuating Asymmetry And Developmental Instability In Primates, Ashly N. Romero

Graduate Theses and Dissertations

This dissertation explored the impact of environmental factors on the development and perpetuation of fluctuating asymmetry (FA) and sought to understand the role evolution may play in the FA exhibited in two primate populations: the free-ranging Cayo Santiago rhesus macaques (Macaca mulatta) and the Southwest National Primate Research Center olive baboons (Papio hamadryas anubis). Demographic, ontogenetic, secular, external, and genetic factors were examined. Specifically, this dissertation investigated FA over all ontogenetic stages, across decades, between sexes, in association with ecological catastrophes, and with tooth pathology to try and tease apart factors that may influence FA and developmental instability. This dissertation …


A Phenomenographic Analysis Of Elementary Student Teachers’ Reflections Using Tiktok As A Resource For Classroom Management, Stefanie Lynn Mckoy Aug 2023

A Phenomenographic Analysis Of Elementary Student Teachers’ Reflections Using Tiktok As A Resource For Classroom Management, Stefanie Lynn Mckoy

Graduate Theses and Dissertations

This phenomenographic study investigates how student teachers use TikTok to discover, analyze, evaluate, and adopt classroom management information and strategies. Student teachers often struggle with classroom management regarding student behavior, classroom environment, and instruction. To address these concerns, they turn to traditional print, digital, and human resources. Fifteen student teachers during the 2022-2023 school year were interviewed using a semi-structured guide. Transcripts were analyzed following a second order approach whereas the research examines student teachers’ perceptions. Four themes, resource discovery, TikTok analysis, evaluating credibility, and strategy adoption. Findings support the need for teacher preparation programs to incorporate exemplar examples of …


Use Of Microorganisms For The Enrichment Of Zn And Se By Using Solid-State Fermentation, Rashmi Rangaswamaiah Aug 2023

Use Of Microorganisms For The Enrichment Of Zn And Se By Using Solid-State Fermentation, Rashmi Rangaswamaiah

Graduate Theses and Dissertations

Zinc (Zn) and selenium (Se) are essential minerals for human health and naturally found in many food sources. However, the risk of Zn and Se deficiency has been recognized in several countries. As most people throughout the world consume rice, grains, and cereals as staple foods in their daily diet, which contain a certain amount of phytic acid (antinutrients), the phytic acid content inhibits mineral absorption (Zn and Se) by the human body. Moreover, the low levels of Zn and Se content found in the crop's soil also reduce the amount of minerals in the food sources. Therefore, it is …


Molecular Characterization Of Compartment Boundary Formation During Epithelial Remodeling In Drosophila Melanogaster, Samia Parveen Aug 2023

Molecular Characterization Of Compartment Boundary Formation During Epithelial Remodeling In Drosophila Melanogaster, Samia Parveen

Graduate Theses and Dissertations

The ability of epithelial cells to self-organize is crucial for the development of proper tissue structures and organs in multi-cellular organisms. Epithelia consist of inter-connected cells that form flat sheets, and specific groups of cells within these sheets are partitioned into distinct compartments via compartment boundaries (CBs). These CBs are specialized interfaces between cells characterized by stable, high-tension actomyosin cables, which act as fences to prevent movements between adjacent compartments during tissue reorganization. In the early Drosophila embryo, CBs are established in response to the asymmetrical localization of two cell-surface proteins the Leucine-Rich Repeat (LRR) protein Tartan and the Teneurin …


The Hidden Role Of Religiosity In Contemporary Public Education In The United States Of America, Marilyn Anderson Rhames Aug 2023

The Hidden Role Of Religiosity In Contemporary Public Education In The United States Of America, Marilyn Anderson Rhames

Graduate Theses and Dissertations

The ‘separation of church and state’ is a fundamental precept of the United States, yet the phrase itself is not written in the Constitution and even Supreme Court justices disagree on how it should be defined. The ambiguity surrounding religious liberty is perhaps most felt in K-12 public education, where the fear of inflicting faith formation on impressionable students has inspired the vision of a secular, God-neutral, government-run school system. As such, federal and state laws dictate that public school educators who coerce students by promoting or inhibiting religious devotion risk losing their jobs. Yet, the reality is that the …