Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (1698)
- Social and Behavioral Sciences (710)
- Animal Sciences (617)
- Plant Sciences (546)
- Agriculture (436)
-
- Medicine and Health Sciences (436)
- Food Science (415)
- Agronomy and Crop Sciences (402)
- Nutrition (394)
- Business (292)
- Agricultural Economics (287)
- Horticulture (269)
- Education (260)
- Poultry or Avian Science (255)
- Agribusiness (215)
- Botany (206)
- Law (204)
- Entomology (201)
- Agricultural Education (195)
- Physical Sciences and Mathematics (192)
- Food and Drug Law (185)
- Communication (183)
- Environmental Studies (155)
- Family and Consumer Sciences (150)
- Animal Studies (117)
- Human and Clinical Nutrition (110)
- Engineering (108)
- Agricultural Science (102)
- Agricultural and Resource Economics (100)
- Nursing (97)
- Keyword
-
- University of Arkansas (253)
- Biological sciences (198)
- Arkansas (86)
- Nutrition (77)
- Rice (68)
-
- Poultry (63)
- Health and environmental sciences (62)
- Social sciences (61)
- Poultry--Research--Arkansas--Periodicals (42)
- Broiler (41)
- Fayetteville. Department of Animal Sciences--Periodicals (40)
- Soybean (38)
- Sustainability (38)
- Broilers (35)
- Fayetteville--Catalogs (34)
- Obesity (34)
- Food (33)
- Agriculture (32)
- Food insecurity (32)
- Poultry industry--Arkansas--Periodicals (30)
- And Life Sciences (University of Arkansas (28)
- Dale Bumpers College of Agricultural (28)
- Education (28)
- Fayetteville) -- Periodicals (27)
- Breastfeeding (26)
- Food security (24)
- Protein (23)
- Nitrogen (21)
- Food safety (20)
- Health (20)
- Publication Year
- Publication
-
- Graduate Theses and Dissertations (995)
- Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences (218)
- Journal of Food Law & Policy (217)
- Journal of the Arkansas Academy of Science (126)
- The Eleanor Mann School of Nursing Undergraduate Honors Theses (93)
-
- Poultry Science Faculty Publications and Presentations (70)
- Arkansas Agricultural Experiment Station Research Series (67)
- Proceedings of the Arkansas Nutrition Conference (47)
- Animal Science Undergraduate Honors Theses (45)
- Health, Human Performance and Recreation Undergraduate Honors Theses (42)
- Partners (42)
- Human Nutrition and Hospitality Management Undergraduate Honors Theses (40)
- Biological Sciences Undergraduate Honors Theses (38)
- Diet, Food, Exercise, and Nutrition (D-FEND) (38)
- Food Science Faculty Publications and Presentations (35)
- Crop, Soil and Environmental Sciences Faculty Publications and Presentations (31)
- Avian Advice (30)
- Graduate (27)
- Horticulture Faculty Publications and Presentations (26)
- Undergraduate Catalog of Studies (26)
- Agricultural Economics and Agribusiness Faculty Publications and Presentations (24)
- Animal Science Faculty Publications and Presentations (23)
- Animal Science e-Newsletter (23)
- Inquiry: The University of Arkansas Undergraduate Research Journal (20)
- Health, Human Performance and Recreation Faculty Publications and Presentations (19)
- Agricultural Economics and Agribusiness Undergraduate Honors Theses (18)
- Animal Science Newsletter (17)
- Biological and Agricultural Engineering Department Annual Report (17)
- Biological and Agricultural Engineering Undergraduate Honors Theses (16)
- Entomology and Plant Pathology Faculty Publications and Presentations (15)
- Publication Type
Articles 31 - 60 of 3018
Full-Text Articles in Entire DC Network
Reducing Textile Waste Through 3d Body Scanning Technology: A Comparative Study Of Traditional And Digital Apparel Design Methods, Anna Delap
Apparel Merchandising and Product Development Undergraduate Honors Theses
The fashion industry generates a substantial amount of textile waste each year, highlighting the need to incorporate more sustainable methods in the design and production of apparel garments. Emerging technologies such as three-dimensional (3D) body scanning and digital design software present the potential to reduce the amount of waste generated during product development while also improving fit and customer satisfaction. The purpose of this study was to investigate the potential of 3D body scanning to reduce waste in the apparel industry by comparing garment development using 3D digital design and traditional flat pattern design methods.
In this study, 3D body …
The Role Of Advertising In Shaping Eating Habits, Mary J. Landrum
The Role Of Advertising In Shaping Eating Habits, Mary J. Landrum
Journalism Undergraduate Honors Theses
Today, more individuals worldwide are classified as overweight than underweight (World Health Organization, n.d.-a.). Over the past several decades, obesity rates have increased dramatically, particularly in the United States. Since the 1960s, the prevalence of obesity in the U.S. has risen from 13% to 43%, reflecting a significant shift in population health. Even more striking, less than 1% of Americans were considered morbidly obese in 1960, compared to nearly 10% today (USAFacts, 2023). This trend is not limited to the United States. Globally, the percentage of adults living with obesity more than doubled between 1990 and 2022, increasing from 7% …
Effect Of 1,25(Oh)₂D₃ Glycoside Supplementation Duration On Bacterial Chondronecrosis With Osteomyelitis (Bco) Lameness In Broilers, Zoe R. Zeman
Animal Science Undergraduate Honors Theses
Bacterial chondronecrosis with osteomyelitis (BCO) is a significant cause of lameness in commercial broilers, resulting in substantial animal welfare concerns and economic losses. This study evaluated the effect of 1,25(OH)₂D₃ glycoside supplementation duration on the incidence of BCO-related lameness in broilers. Cobb surplus male broiler chicks were assigned to four treatment groups: a wire-flooring positive control, a litter-flooring negative control, and two treatment groups on litter flooring receiving 1 μg 1,25(OH)₂D₃ as glycosides supplementation per kg diet for either 14 or 28 days. Lameness incidence was recorded from day 22 through day 56, and all lame birds were evaluated for …
The Impact Of Increased Beef Intake On Cardiometabolic Health In Postmenopausal Women: A 16-Week Randomized Controlled Trial, Leen Samman
Biological Sciences Undergraduate Honors Theses
By 2030, it is projected that the number of post-menopausal women globally will reach 1.2 billion. Moreover, because of increases in life expectancy, women will spend a greater proportion of their later years at elevated risk of chronic disease associated with the hormonal changes of the menopausal transition. Dietary interventions, specifically high-protein diets have shown potential mitigating effects; however, most interventions have focused on total protein intake or protein supplements, not whole foods like lean beef. This randomized controlled trial aimed to assess the effects of daily lean beef consumption as part of a higher protein diet on cardiometabolic markers …
Effect Of A Probiotic Microbial Gel Jointly With Two Versions Of Supplemental Direct-Fed Microbials In Receiving Cattle Diets On Growth Performance And Health, John Mitchell
Biological Sciences Undergraduate Honors Theses
The objective was to assess the effect of a probiotic microbial gel (BIOFRESH® Microbial Gel, Agrarian Solutions) administered on arrival in combination with feeding one of two different direct-fed microbials (DFM 365a or DFM 365b, Agrarian Solutions) on the health and growth performance of stocker calves at high risk for bovine respiratory disease (BRD). Beef heifer calves (n = 292, BW = 476 ± 5 lb) arriving on 3 separate receiving dates were used in the 42-day receiving study. On arrival (d -1), heifers were processed, stratified by d -1 body weight, and then assigned randomly to 9 pens (10 …
Prevalence Of Disordered Eating Behaviors In Junior And Senior Human Nutrition And Dietetics Students At The University Of Arkansas, Grace P. Carroum, Mallori Roberts
Prevalence Of Disordered Eating Behaviors In Junior And Senior Human Nutrition And Dietetics Students At The University Of Arkansas, Grace P. Carroum, Mallori Roberts
General Human Environmental Sciences Undergraduate Honors Theses
Disordered eating (DE) is a prevalent concern among college students and may be particularly relevant among nutrition and dietetics students due to their academic focus on food, weight, and health. This study aimed to assess the prevalence and frequency of disordered eating behaviors among junior and senior Human Nutrition and Dietetics students at the University of Arkansas using item-level responses from the Eating Disorder Examination Questionnaire Short Form (EDE-QS). A quantitative, cross-sectional design was employed, and data were collected via an anonymous online survey (n = 11). Descriptive statistics were used to examine the frequency of specific behaviors. Overall, most …
The Effects Of Heat Stress On White Blood Cell Profiles And Antibody Concentrations In Broilers Genetically Selected For Low Water Conversion Ratio Compared To The Modern Random Bred Broiler, Luke B. Janski
Poultry Science Undergraduate Honors Theses
Heat stress (HS) is one of the most significant environmental stressors impacting poultry production worldwide, reducing growth, feed efficiency, welfare, and immune competence. With global temperatures rising, understanding physiological and immunological adaptations to HS is essential for sustainable production. Broiler chickens selectively bred for low water conversion ratio (LWCR) have shown potential for reduced water consumption under environmental challenges; however, their immune resilience under HS conditions compared with modern random-bred (MRB) broilers remains unclear. This study investigated the effects of cyclic HS on red- (RBC) and white- (WBC) blood cells and humoral immunity in LWCR and MRB broilers. Birds were …
Exploring Google Trends In Assessing Personal Finance Needs For Cooperative Extension Service Programming, Megan Wells
Exploring Google Trends In Assessing Personal Finance Needs For Cooperative Extension Service Programming, Megan Wells
Graduate Theses and Dissertations
The Cooperative Extension Service (CES) relies on systematic needs assessments to guide program development; yet, traditional approaches often depend heavily on stakeholder input and professional judgment, offering limited insight into consumer level needs. This mixed methods study explored Google Trends as a complementary, consumer driven data source for assessing Family Resource Management (FRM) needs within the Arkansas CES. Grounded in Witkin and Altschuld’s three level needs assessment framework and Uses and Gratifications Theory, the study integrated three data sources representing stakeholders, service providers, and consumers: (1) Family and Consumer Sciences (FCS) advisory committee reports, (2) survey of Family Consumer Science …
Developing A Decision-Making Tool For Breast-Feeding Mothers Whose Babies Have A Cow's Milk Protein Allergy, Rachel M. Griffith
Developing A Decision-Making Tool For Breast-Feeding Mothers Whose Babies Have A Cow's Milk Protein Allergy, Rachel M. Griffith
Human Nutrition and Hospitality Management Undergraduate Honors Theses
Cow’s milk protein allergy (CMPA) is one of the most common food allergies in infancy, affecting an estimated 2–3% of infants, including those who are breastfed. Many symptoms of CMPA overlap with gastrointestinal disorders and lactose intolerance, leading to frequent misdiagnosis and unnecessary maternal dietary restriction. Breastfeeding mothers who eliminate dairy to manage suspected CMPA often face nutritional deficiencies, emotional strain, and financial burden, while infants risk poor growth if symptoms are not properly addressed. Breastfeeding is viewed as the optimal source of nutrition for infants providing many cognitive benefits and positive maternal effects like decreased stress and risks of …
Faculty And Academic Advisor Perspectives On Embedded Certifications Supporting Neurodivergent Learners, Katherine B. Watkins
Faculty And Academic Advisor Perspectives On Embedded Certifications Supporting Neurodivergent Learners, Katherine B. Watkins
Human Nutrition and Hospitality Management Undergraduate Honors Theses
This study explores the experiences, strengths, and challenges of neurodivergent individuals within educational and social environments, with a focus on promoting inclusivity and understanding. Neurodivergence, encompassing conditions such as autism, ADHD, dyslexia, and other cognitive variations, is increasingly recognized not as a deficit but as a natural form of human diversity. The research examines how traditional systems often fail to accommodate diverse cognitive styles, leading to barriers in learning, communication, and self-expression. Using a mixed-methods approach, the study combines quantitative survey data with qualitative interviews to capture both broad trends and personal narratives. Participants reported that rigid structures, sensory overload, …
Enhancing Food Security In Stann Creek. Belize Using Meat Rabbits, Lindsey Garretson
Enhancing Food Security In Stann Creek. Belize Using Meat Rabbits, Lindsey Garretson
Crop, Soil and Environmental Sciences Undergraduate Honors Theses
In recent years, food insecurity and the prevalence of hunger have rapidly grown throughout the world, but especially within Latin America and the Caribbean. Along with growing rates of food insecurity and hunger there are increases in medical conditions including negative impacts the functioning of every major organ system, increased rates of mental illness, both overweight and underweight children, wasting in both children and adults, and anemia. Availability and access to healthy, nutritional food options can help lower the risk of these conditions. With these considerations, the goal of this project was to create an all-encompassing manual and construction guide …
The Effects Of Cannabidiol (Cbd) On The Social, Cognitive, And Physical Facets Of Anxiety Sensitivity, Ezri Rathbun
The Effects Of Cannabidiol (Cbd) On The Social, Cognitive, And Physical Facets Of Anxiety Sensitivity, Ezri Rathbun
Psychological Science Undergraduate Honors Theses
The current study investigated how repeated administration of 300mg of cannabidiol (CBD), when compared to a placebo, affects the social, cognitive, and physical facets of anxiety sensitivity (AS), a characteristic that reflects fear of the consequences of anxious arousal. Prior work suggests CBD may have anxiolytic effects that may be specific to the social aspects of anxiety. Thus, it was hypothesized that, that, relative to placebo, CBD would reduce self-reported AS-social concerns, but not AS-cognitive or AS-physical concerns, compared to baseline. Participants (N= 79; 52 women; Mage = 22.06) with elevated perceived stress were randomly assigned to 14 …
Not Just A Drink: The Cultural Evolution Of A Beverage Turned Lifestyle And Its Adaption To Spain, Ava Axtell
Not Just A Drink: The Cultural Evolution Of A Beverage Turned Lifestyle And Its Adaption To Spain, Ava Axtell
Marketing Undergraduate Honors Theses
This research explores the rise of dirty soda in the United States and how a simple customizable beverage evolved into a cultural ritual shaped by social media, treat culture, and the lifestyle norms of the LDS community. It analyzes the cultural meaning behind Swig’s popularity, including how influencers and online aesthetics transformed the drink into a status symbol and daily indulgence. This study also compares U.S. and Spanish cultural values, including individualism, indulgence, and social rituals, to determine how Swig must adapt its product, branding, and store model for successful expansion into Spain. Findings reveal that while dirty soda thrives …
The Prevalence Of Amenorrhea In Relation To Red-S Syndrome Among Various Sports In Collegiate Female Athletes, Ruby S. Holland, Marilou D. Shreve
The Prevalence Of Amenorrhea In Relation To Red-S Syndrome Among Various Sports In Collegiate Female Athletes, Ruby S. Holland, Marilou D. Shreve
The Eleanor Mann School of Nursing Undergraduate Honors Theses
Background: RED-S is a common risk factor for amenorrhea in female athletes. Athletes that compete in high-intensity sports or without adequate caloric intake, are at risk for low energy expenditure which may disrupt hormonal balance. As development of RED-S is a well-established risk factor for amenorrhea, early detection and correction is crucial to prevent long term health consequences.
Purpose: The purpose of this research is to explore if there is a correlation between RED-S score and amenorrhea in female athletes.
Methods: An online survey was distributed to approximately 220 female athletes at the University of Arkansas using Qualtrics. The 69-question …
Grazed Pasture Effects On Greenhouse Gas Emissions In The Ozark Highlands, Tyler Buchanan
Grazed Pasture Effects On Greenhouse Gas Emissions In The Ozark Highlands, Tyler Buchanan
Graduate Theses and Dissertations
In the United States (US), grazinglands serve as the main foundation for the livestock industry, and, in Arkansas specifically, pastures are essential for rotational grazing and dairy operations. Climate change is increasingly becoming a concern in the agriculture industry, largely caused by anthropogenic activities increasing greenhouse gas (GHG) concentrations in the atmosphere, at least partly due to the nutrient recycling that occurs from animal manure additions in grazinglands. Therefore, quantifying GHG emissions from pastures is essential to better understanding the impacts of grazing on the environment. The objective of this study was to quantify and evaluate the potential effects of …
Dissecting The Complex Genomic Landscape Underlying Oxidative Stress Resistance Using Natural Variation In Yeast, Sonali Lakshika Anne Lenaduwe
Dissecting The Complex Genomic Landscape Underlying Oxidative Stress Resistance Using Natural Variation In Yeast, Sonali Lakshika Anne Lenaduwe
Graduate Theses and Dissertations
Stress is experienced across the tree of life. Survival in fluctuating environments depends on a robust genetic architecture. This dissertation examines the genetic and metabolic determinants underlying one such adaptive response: cross-protection. Leveraging natural variation in the stress responses of budding yeast, Saccharomyces cerevisiae, I examine the genetic variation contributing to ethanol-induced cross-protection against oxidative stress. Acquired stress resistance, in which mild pre-exposure improves survival to subsequent stresses, is prevalent across diverse organisms and can involve both same-stress and cross-protection. Using high-throughput bulk segregant analysis (BSA-seq) and advanced intercross mapping populations derived from natural yeast isolates, I identify quantitative trait …
Impacts Of Climate-Smart Agriculture On Greenhouse Gas Emissions In Southeast Arkansas Cotton, Cassandra Seuferling
Impacts Of Climate-Smart Agriculture On Greenhouse Gas Emissions In Southeast Arkansas Cotton, Cassandra Seuferling
Graduate Theses and Dissertations
Increasing concerns of climate change have led to the evaluation of greenhouse gas (GHG) emissions [i.e., carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O)] from agroecosystems, particularly cotton (Gossypium hirsutum) production. Technology improvement and conservation agriculture methods [i.e., reduced-tillage (RT) instead of conventional tillage (CT) and the use of cover crops (CC)] require further evaluation regarding GHG emissions from Arkansas cotton production. The first objective of the study was to evaluate four gas-flux-determination methods [i.e., linear or exponential regression models, with negative fluxes (WNF) included in the dataset or replacing negative fluxes (RNF)] on CO2, CH4, and N2O fluxes …
The Effect Of Including A Yeast Culture Containing Essential Oils In Receiving Cattle Diets On Growth Performance And Health, Taylor Deanna Foster
The Effect Of Including A Yeast Culture Containing Essential Oils In Receiving Cattle Diets On Growth Performance And Health, Taylor Deanna Foster
Animal Science Undergraduate Honors Theses
Due to the increased risk of bacterial populations developing resistance to current antibiotics, consumer perceptions surrounding the utilization of antibiotics use in cattle, and the endemic incidence of bovine respiratory disease (BRD) among growing and finishing cattle, alternative management strategies to improve the health of cattle must be developed. The objective of this study was to evaluate the use of a supplement containing a yeast culture and an essential oils blend (YEO) on the health and growth performance of stocker calves at high-risk for BRD. Crossbred male beef calves (n = 185) received on two separate dates were used in …
Influence Of Increased Supplementation Of Organic-Complexed Zinc To Beef Cows During Gestation: Effects On Preweaning Health Of Offspring, Naija N. Sharpley
Influence Of Increased Supplementation Of Organic-Complexed Zinc To Beef Cows During Gestation: Effects On Preweaning Health Of Offspring, Naija N. Sharpley
Animal Science Undergraduate Honors Theses
The objective of this study was to determine the effect of increasing zinc supplementation from organic-complexed sources to beef cows during gestation on calf performance. In May 2025, during gestation, Angus crossbred cows were confirmed pregnant with female sexed semen (n = 83) and enrolled in the current study. Cows (4.7 ± 2 years of age and 531 ± 84.4 kg body weight, mean ± standard deviation) were allotted to 4 groups (20 to 21 cows/group) based on, sire of heifer calf, cow age, and cow body weights taken at weaning. Assigned groups received 1 of 2 treatments (2 groups/treatment): …
Tiny Tusks Internship: Factors That Affect Breastfeeding In Public, Caroline E. Bene
Tiny Tusks Internship: Factors That Affect Breastfeeding In Public, Caroline E. Bene
The Eleanor Mann School of Nursing Undergraduate Honors Theses
The purpose of this review was to explore factors that impact women’s decision to breastfeed in public or not. The PICOT question used was: ‘What Factors Affect Women’s Decision to Breastfeed in Public or Not?’ Two platforms, EBSCOhost and The National Library of Medicine, were used to identify 15 peer-reviewed journal articles on factors affecting women’s decision to breastfeed in public or not. The factors that impact a women’s decision on whether it is acceptable to breastfeed in public stems from the media stigmatizing that breastfeeding should be a private action. Research done yielded results of both positive and negative …
Tiny Tusk Internship: Gut Instincts: A Review Of Literature On The Impact Of Breastfeeding On The Infant Gut Microbiome, Rayla Payne
The Eleanor Mann School of Nursing Undergraduate Honors Theses
The purpose of this systematic review was to investigate both the short- and long-term benefits that breastfeeding has on the infant gut microbiome. The PICOT question was: In full-term infants, how does exclusive breastfeeding compared to mixed or formula feeding influence the diversity and composition of the gut microbiome throughout the first 12 months of life? For this research, EBSCOhost, CINAHL, and the National Library of Medicine databases were searched to find relevant studies and systematic reviews. Terms such as “breastfeeding and infant gut microbiome” were used to conduct the search. Other terms used included “breastfeeding OR formula feeding”, “human …
Parental Monitoring And Approval As Moderators Of Peer And Parental Influences On Adolescent Drinking, Clara Pool
Parental Monitoring And Approval As Moderators Of Peer And Parental Influences On Adolescent Drinking, Clara Pool
Biological Sciences Undergraduate Honors Theses
Adolescence (i.e., ages 12 to 18) is a developmental period marked by exploration and risk-taking behavior, which is often associated with increased risk for alcohol use. Adolescents’ perceptions of what is typical or approved behavior within their social environments (e.g., peers, parents) may be associated with their drinking behaviors. Parental monitoring is related to reduced substance use risk, though peer and parental influences can interact. For example, adolescents who perceive their parents do not approve of adolescent alcohol use may be less susceptible to alcohol-approving peers. Therefore, this study examined how adolescents’ perceptions of peer approval, parental approval, and parental …
Exploring Exercise Motivation And Mental Well-Being In College Students, Elaine M. Lindesmith, Anqi Deng Dr
Exploring Exercise Motivation And Mental Well-Being In College Students, Elaine M. Lindesmith, Anqi Deng Dr
Health, Human Performance and Recreation Undergraduate Honors Theses
This study examined the relationship between physical activity, exercise motivation, and mental well-being among 48 undergraduate students at the University of Arkansas. Guided by Self-Determination Theory, the study used survey data to measure depression, anxiety, physical activity, and open-ended exercise motivation responses. Motivation responses were coded as autonomous or controlled.
Results showed that physical activity was weakly and negatively related to depression and anxiety, but these relationships were not statistically significant. There were also no significant differences in mental health between autonomous and controlled motivation groups, and motivation did not significantly predict mental health outcomes in regression analyses. Overall, the …
Developing Transparent Sustainability Data Systems In A Poultry And Pet Food Company: An Internship Case Study, Catherine L. Warren
Developing Transparent Sustainability Data Systems In A Poultry And Pet Food Company: An Internship Case Study, Catherine L. Warren
Biological and Agricultural Engineering Undergraduate Honors Theses
My honors thesis examined my internship experiences and its implications on sustainability data gathering and reporting in poultry and pet food companies. It highlighted my internship projects, the skills I developed, and the connections to sustainability data transparency and reliability in a corporate environment.
In my thesis, I shared details about my internship. I described what projects I worked on, the places I visited, the hands-on experience I gained, and the different teams I worked with throughout the internship duration. I discussed the analytic and professional skills I developed through conducting a waste audit, developing Tableau dashboards, and helping to …
Cross-Facility Reliable Deep Learning Based Beef Marbling Assessment Via Unsupervised Domain Adaptation Regression, Samuel Vinson
Cross-Facility Reliable Deep Learning Based Beef Marbling Assessment Via Unsupervised Domain Adaptation Regression, Samuel Vinson
Biological and Agricultural Engineering Undergraduate Honors Theses
Inconsistent quality grading in beef production leads to inefficiencies, economic disparity, and consumer mistrust. While USDA meat grading traditionally relies on skilled visual inspectors, these human evaluations suffer from cross-facility variability and subjectivity. This paper introduces the first known application of unsupervised domain adaptation regression for cross-facility beef marbling score prediction—an innovation that improves generalization across diverse environments in the beef supply chain. Utilizing numerical scores ranging from 100-900, the research employed convolutional neural networks (CNNs), including ResNet, VGG, and AlexNet architectures. The study specifically introduced and validated a unified unsupervised domain adaptation regression method using the ResNet-50 architecture to …
Validation Of Rice Tissue Sampling For In-Season Nutrient Management Of Nitrogen, Phosphorus, And Potassium, Tanner Smith
Validation Of Rice Tissue Sampling For In-Season Nutrient Management Of Nitrogen, Phosphorus, And Potassium, Tanner Smith
Graduate Theses and Dissertations
Nitrogen (N), phosphorus (P), and potassium (K) are the 3 most important nutrients involved in rice (Oryza sativa L.) growth and development. Tissue sampling has been proven to be a potential tool to provide inseason information about plant nutrient concentrations at specified timings and growth stages. With increased interest in tissue sampling and improving nutrient management effectiveness, more information is needed to validate plant tissue concentrations at which additional fertilizer inputs may be warranted. Experiments were conducted in 2024 and 2025 at the Rice Research and Extension Center (RREC) near Stuttgart, Ark.; Pine Tree Research Station (PTRS) near Colt, Ark.; …
Sensing Rna’S Conformation With A Solid-State Nanopore Device At Various Ph And Temperature, Haopeng Li
Sensing Rna’S Conformation With A Solid-State Nanopore Device At Various Ph And Temperature, Haopeng Li
Graduate Theses and Dissertations
This study uses solid-state nanopore technology to investigate the stability and dynamics of RNA molecules under thermal stress and pH fluctuations. Two distinct mRNA samples were analyzed: (1) heat shock protein (HSP)-encoding mRNA extracted from Sulfolobus solfataricus P2, a thermophilic archaeon inhabiting extreme environments such as geothermal sulfuric hot springs (pH < 4, temperature range: 65–90°C), and (2) total RNA extracted from White Leghorn chickens, which thrive under standard physiological conditions. ΦX174 virion single-stranded DNA (ssDNA) were included as a comparative reference. Nanopores, fabricated in silicon nitride membranes, were used to electrically characterize the structural properties of individual RNA molecules in solution, close to their native environments. The nanopore membrane separates two chambers containing salt buffer solution, where ionic current is the primary measurement parameter. When a voltage bias is applied across the membrane, ion flow and an ionic current can be measured. Charged RNA molecules driven translocation through the nanopore induces pore resistance changes, resulting in detectable current blockade events. Variations in these events provide insights into RNA secondary structure and conformational dynamics. By systematically altering pH and temperature, this study elucidates the effects of environmental stressors on RNA stability and structural integrity. The findings reveal distinct responses between thermophilic HSP-encoding mRNA and mesophilic RNA, underscoring the adaptive mechanisms of thermophilic RNA under extreme conditions. These results contribute to a better understanding of RNA behavior under stress and establish a foundation for future applications in RNA-based diagnostics and biotechnology development.
Consumer Perceptions Of Fda Front-Of-Package Nutrition Labeling, Madison Price
Consumer Perceptions Of Fda Front-Of-Package Nutrition Labeling, Madison Price
Graduate Theses and Dissertations
The U.S. Food and Drug Administration (FDA) proposed a front-of-package nutrition labeling (FOPL) rule in early 2025 to help consumers more quickly and easily compare the nutritional quality of packaged foods (U.S. Food and Drug Administration, 2025). FOPL is gaining attention as a way to encourage healthier eating habits and consumer choices, but there is still debate over which label format works best. The objective of this study was to examine consumer perceptions, understanding, and trust of FDA FOPL, and to determine how these labels impact purchasing behavior and nutritional decision-making. Data were collected via an online Qualtrics survey distributed …
Enhancing Food Security In Stann Creek, Belize Using Meat Rabbits: Engineering Perspective, Lindsey Garretson
Enhancing Food Security In Stann Creek, Belize Using Meat Rabbits: Engineering Perspective, Lindsey Garretson
Biological and Agricultural Engineering Undergraduate Honors Theses
The purpose of this paper is to discuss the engineering perspective within the overall project of using meat rabbits to enhance food security and nutrition within Stann Creek, Belize. From the engineering perspective, the overarching goals were like the overarching project goals including the construction and materials required guide within the manual, designing potential upgrades to the design including a solar and battery system and an automatic watering system, and to design the system to be “practically sustainable” where possible. The constraints for this project included cost, the size of land dedicated for the rabbitry, and the operational and environmental …
From Kernel To Carbon Footprint: Using Life Cycle Analysis To Teach Sustainability In Chemical Engineering, Neal Z. Kinney
From Kernel To Carbon Footprint: Using Life Cycle Analysis To Teach Sustainability In Chemical Engineering, Neal Z. Kinney
Chemical Engineering Undergraduate Honors Theses
Many chemical engineering departments in the United States are currently lacking developed sustainability coursework, leaving many students without a developed understanding of topics such as life cycle analysis (LCA). [1] Therefore, there is a need for engaging and flexible educational tools that can be easily incorporated into course frameworks. This study develops an interactive learning module, expanding upon the work from Pollution Prevention Through Popcorn, a study developed by Rowan University. [2] The module combines experimental analysis of popcorn popping methods with life cycle assessment using OpenLCA to evaluate the environmental impacts of common types of popcorn packaging. Results of …