Life Sciences Commons^™

Use Of A Capsule Suspension Formulation Of S-Metolachlor In Fenclorim-Treated Rice, Jason K. Norsworthy, Samuel C. Noe, Thomas R. Butts, Trenton L. Roberts

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

As herbicide resistance continues to render commonly used rice herbicides ineffective, alternative sites of action are paramount to maintaining yield and producer profitability. Combining a slow-release formulation and a fenclorim seed treatment might allow the safe use of S-metolachlor in rice. Experiments were initiated in 2022 and 2023 near Colt, AR, on a silt loam soil to evaluate crop safety using a capsule suspension (CS) formulation of S-metolachlor and a fenclorim seed treatment in rice. The first experiment assessed the tolerance of two cultivars (‘Diamond’ and ‘DG263L’) to three rates (0.42, 0.84, and 1.68 kg ai ha^{−1 …}

Advancing Molecular Tools For The Study Of Rubus Viruses, Andrea Sierra-Mejia

Graduate Theses and Dissertations

Since blackberry yellow vein disease (BYVD) was first described, the blackberry virome has expanded significantly. BYVD is a complex disease associated with over ten viruses, yet the role of each virus in its etiology remains understudied. Studying the effect of each virus in disease development requires the identification of single infections; however, this task has been difficult for BYVD, with all field collected material over the past two decades consistently found infected by multiple viruses. Given the diversity of viruses associated with the disease and their different modes of transmission, obtaining pure virus cultures necessitate transmission of individual viruses via …

Effects Of Fast And Slow-Wilting Soybean Genotypes On Plant-Herbivore Interactions, Jessica Ayala

Graduate Theses and Dissertations

Soybean [Glycine max (L.) Merr.] is one of the most important food crops in the world due to its multiple uses in agriculture sector. A major limiting factor in soybean production system is drought stress, causing up to 80% reduction in yield. Due to climate change and associated rise in ambient temperatures, water scarcity is a major concern in crop production, and consequently researchers are turning to soybean accessions that demonstrate better water use efficiency (WUE) traits. However, field grown soybean is also under severe pressure from insect herbivores, often accounting for a 30% reduction in yield. Among these, …

Acute Alpha-Glycerylphosphorylcholine Supplementation Enhances Cognitive Performance In Healthy Men, Chad M. Kerksick

Faculty Scholarship

Background: Choline is an essential nutrient required for proper cell functioning. Due to its status as a precursor to acetylcholine, an important neurotransmitter connected to cognition and neuromuscular function, maintaining or enhancing choline levels is of interest. Supplementation with alpha-glycerylphosphorycholine (A-GPC) can maintain choline levels, but its ability to offer support towards cognition remains an area of ongoing research. Methods: Using a randomized, double-blind, placebo-controlled, crossover approach, 20 resistance-trained males (31.3 ± 11.0 years, 178.6 ± 7.3 cm, 84.6 ± 11.4 kg, 15.4 ± 5.6% body fat) consumed either a placebo (PL), 630 mg A-GPC (HD), or 315 mg (LD) …

Effects Of Acacia Catechu And Scutellaria Baicalensis Extract On Cognitive Function In A Healthy Adult Population: A Double-Blind, Randomized, Placebo-Controlled Trial, Anthony M. Hagele, Petey Mumford, Diego De Gregorio, Connor J. Gaige, Ethan R. Hoffman, Kristen N. Gross, Kevin F. Holley, Leah E. Allen, Chad M. Kerksick

Faculty Scholarship

Flavonoids, known for their neuroprotective properties, are abundant in Acacia catechu and Scutellaria baicalensis. Yet, human studies on their combined effects are limited.

Objective

This study evaluated the cognitive effects of combined Acacia catechu and Scutellaria baicalensis supplementation in healthy adults.

Methods

In a randomized, double-blind, placebo-controlled trial, 26 males and 59 females (N = 85; 43 ± 8 yrs) consumed the test product (TP) containing 240 mg stem extract of Scutellaria baicalensis and 51 mg heartwood extract of Acacia catechu (UP326, Unigen, Tacoma, WA USA) or placebo (PLA) for four weeks. Cognitive function and biomarkers were assessed throughout …

International Society Of Sports Nutrition Position Stand: Β-Hydroxy-Β-Methylbutyrate (Hmb), John A. Rathmacher, Lisa M. Pitchford, Jeffrey R. Stout, Jeremy R. Townsend, Ralf Jägerg, Richard B. Kreider, Bill I. Campbell, Chad M. Kerksick, Patrick S. Harty, Darren G. Candow, Brandon M. Roberts, Shawn M. Arent, Douglas S. Kalman, Jose Antonio

Faculty Scholarship

Position Statement: The International Society of Sports Nutrition (ISSN) bases the following position stand on an analysis of the literature regarding the effects of β-Hydroxy-β-Methylbutyrate (HMB). The following 12 points have been approved by the Research Committee of the Society: 1. HMB is a metabolite of the amino acid leucine that is naturally produced in both humans and other animals. Two forms of HMB have been studied: Calcium HMB (HMB-Ca) and a free acid form of HMB (HMB-FA). HMB-FA appears to lead to increased appearance of HMB in the bloodstream when compared to HMB-Ca, though recent results are mixed. 2. …

Dileucine Ingestion, But Not Leucine, Increases Lower Body Strength And Performance Following Resistance Training: A Double-Blind, Randomized, Placebo-Controlled Trial, Anthony M. Hagele, Joesi M. Krieger, Connor J. Gaige, Kevin F. Holley, Kristen N. Gross, Joshua M. Ianotti, Leah E. Allen, Paige J. Sutton, Logan S. Orr, Petey W. Mumford, Martin Pupura, Ralf Jager, Chad M. Kerksick

Faculty Scholarship

Background

The essential amino acid leucine (LEU) plays a crucial role in promoting resistance-training adaptations. Dileucine (DILEU), a LEU-LEU dipeptide, increases MPS rates, however its impact on resistance training outcomes remains unexplored. This study assessed the effects of DILEU supplementation on resistance training adaptations.

Methods

Using a randomized, double-blind, placebo-controlled approach, 34 resistance-trained males (age: 28.3 ± 5.9 years) consumed 2 grams of either DILEU monohydrate (RAMPS™, Ingenious Ingredients, L.P.), LEU, or placebo (PLA) while following a 4-day per week resistance training program for 10 weeks. Changes in body composition, 1-repetition maximum (1RM) and repetitions to failure (RTF) for leg …

Part Ii. Common Questions And Misconceptions About Creatine Supplementation: What Does The Scientific Evidence Really Show?, Jose Antonio, Ann F. Brown, Darren G. Candow, Philip D. Chilibeck, Stacey J. Ellery, Scott C. Forbes, Bruno Gualano, Andrew R. Jagim, Chad Kerksick, Richard B. Kreider, Sergej M. Ostojic, Eric S. Rawson, Michael D. Roberts, Hamilton Roschel, Abbie E. Smith-Ryan, Jeffrey R. Stout, Mark A. Tarnopolsky, Trisha A. Vandusseldorp, Darryn S. Willoughby, Tim N. Ziegenfuss

Faculty Scholarship

Creatine monohydrate supplementation (CrM) is a safe and effective intervention for improving certain aspects of sport, exercise performance, and health across the lifespan. Despite its evidence-based pedigree, several questions and misconceptions about CrM remain. To initially address some of these concerns, our group published a narrative review in 2021 discussing the scientific evidence as to whether CrM leads to water retention and fat accumulation, is a steroid, causes hair loss, dehydration or muscle cramping, adversely affects renal and liver function, and if CrM is safe and/or effective for children, adolescents, biological females, and older adults. As a follow-up, the purpose …

Common Questions And Misconceptions About Energy Drinks: What Does The Scientific Evidence Really Show?, Jose Antonio, Brandi Antonio, Shawn M. Arent, Darren G. Candow, Guillermo Escalante, Cassandra Evans, Scott Forbes, David Fukuda, Maureen Gibbons, Patrick Harty, Andrew R. Jagim, Douglas S. Kalman, Chad Kerksick, Jennifer A. Kurtz, Joseph Lillis, Lonnie Lowery, Gianna F. Mastrofini, Scotty Mills, Michael Nelson, Flavia Pereira, Justin Roberts, Michael Sagner, Jeffrey Stout, Jaime Tartar, Adam Wells

Faculty Scholarship

Energy drinks are a commonly consumed beverage, and studies suggest a possible performance-enhancing effect. A Google Scholar search using the keywords “energy drinks” and “exercise” yields numerous results, underscoring the voluminous research on this topic. However, there are questions regarding the effectiveness and safety of energy drinks. These questions include, but are not limited to: (1) What are the main active ingredients in energy drinks? (2) Do energy drinks assist in weight management? (3) Do energy drinks enhance aerobic performance? (4) Do energy drinks enhance athletic speed? (5) Do energy drinks improve reaction time? (6) Do energy drinks enhance lean …

(Featured Artist) The Aromatic Herb Garden, Sophia Samra

The Synapse: Intercollegiate science magazine

No abstract provided.

Evaluating Corn, Tall Fescue And Canola Growth On Sediments Dredged From The Lorain Harbor, Maureen E. Roddy, Emily Kalhert, Corry T. Platt, Ashley N. Julian, Megan A. Rúa

Biological Sciences Faculty Publications

Soil degradation is a worldwide problem, causing the declining performance of many plant species. Recently, the application of sediments dredged from aquatic waterways has received attention for their potential as an organic amendment to revive degraded agricultural soils. In Ohio, dredged sediment research has largely focused on the success of corn (Zea mays) or soybean (Glycine max) following the application of dredged sediments from the Toledo Harbor, neglecting the potential for dredged sediments from the other eight harbors and waterways to change plant performance as well as failing to quantify benefits for other commonly grown crops in the region. In …

Phytoplankton Responses To Changing Irradiance And Carbon Fertilization, Alison Siersma

Graduate Theses and Dissertations (2019 - present)

Phytoplankton play a crucial role in marine ecosystems due to their innate ability to fix carbon. As atmospheric CO2 levels continue to rise from fossil fuel combustion, the resulting increase in dissolved CO2 and the concurrent decrease in ocean pH are likely to impact the phytoplankton community. The response of phytoplankton to elevated CO2 can vary significantly among species and environmental conditions (e.g. light, temperature, nutrient availability). To address these variations, an experiment was conducted using a controlled photobioreactor system, maintaining high and low light, constant temperature, nutrient levels, and two pCO2 concentrations. This study focused on two regionally relevant …

Quantifying Temperature Effects On Development Rate And Plant Quality Of Compact Container-Grown Tomato, Morgan Humphrey, Ryan W. Dickson, Sonali Padhye

Horticulture Faculty Publications and Presentations

Mean daily temperature effects on plant development rates and quality were evaluated for compact container-grown tomato (Solanum lycopersicum). Compact tomato varieties ‘Siam’ and ‘Red Velvet’ were grown in greenhouses at 18 to 26 °C (Expt. 1) and 20 to 30 °C (Expt. 2) under supplemental high-pressure sodium lighting and 16-h photoperiod. The number of days to first open flower, first ripe fruit and from flower to ripe fruit were measured and development rates calculated by taking the reciprocal (e.g., 1/d). Temperature effects were predicted by fitting a linear (for first open flower) and a nonlinear exponential function (for …

Predicting Agricultural Sciences Students’ Media Literacy In A Post-Truth Era, Abigail Durheim, Kasey Harmon, Taylor Ruth, Cara Lawson

Journal of Human Sciences and Extension

As more individuals turn to various forms of online media to seek information, misinformation and skepticism are on the rise when considering news media. Media literacy, or how individuals evaluate information they see in the news media, is critical to addressing this growing problem. This study aimed to explore the predictors of agricultural sciences students’ perceived news media literacy to gather preliminary data around this topic. Through an online survey, students enrolled in an agricultural communication class at the University of Nebraska-Lincoln completed a literacy reflection assignment. Students were asked to answer questions about their news media use, perceived media …

Exploring Diet Quality, Food Insecurity, And Health Status Among Utah Residents, Palak Gupta, Lendel Narine

Journal of Human Sciences and Extension

A lower-quality diet is a significant contributor to preventable mortality worldwide. This study investigated the intricate relationships between diet quality, food insecurity, and health status among residents in Utah. Using a cross-sectional survey design with a sample size of 1,522 participants, data were collected through an online survey focusing on household characteristics, diet quality, health status, and food security. The primary exposure, household food insecurity, was assessed using a validated 6-item scale, while diet quality was measured through a modified Rapid Eating Assessment for Participants– Shortened Version (REAP-S). The findings revealed an association between very low food security and poor …

Personal Protective Equipment For Minoritized U.S. Agricultural Farmworkers: Community-Based Efforts During The Pandemic & Implications For Extension, Helen Trejo

Journal of Human Sciences and Extension

There are an estimated 2 million farmworkers who are essential to the food system in the United States; however, they are exposed to hazardous environmental conditions with limited access and/or use of Personal Protective Equipment (PPE). The primary purpose of this research is to evaluate community-based organizational efforts to provide farmworkers with apparel-textile basic needs, such as face masks. A primary goal is to address the research gap regarding common environmental factors that impact farmworkers, including pesticides and the pandemic, their use of available PPE, and community-based efforts to improve access to face masks as basic PPE. We consider the …

Extension Partnerships For Innovative Programming: A Community-Based Training On Artificial Intelligence For Workforce Development, Paul A. Hill, Lendel K. Narine, Jordan L. Rushton, Clint J. Reid

Journal of Human Sciences and Extension

The AI Training Series was Washington County, Utah’s first community education offering on the topic of generative AI (GenAI). The training provided community members with an overview of the capabilities and advantages of GenAI and assisted them in making informed technology adoption decisions. Utah State University Extension partnered with Dixie Technical College and Zonos, a software company, to evaluate the effectiveness of the learning experience based on anticipated outcomes. Results showed the training was effective for disseminating information and advancing knowledge on the topic of GenAI. However, students’ intentions to adopt AI were lower than expected due to perceived barriers …

What’S The Beef? Current Trends Of The Florida Beef Cattle Industry As Perceived By Florida Beef Cattle Industry Leaders, Micah Gallagher, Matt Benge, Lauri Baker

Journal of Human Sciences and Extension

Agriculture plays a vital role in Florida’s economy, as it is the second largest industry behind tourism. Additionally, Florida is a leading cow-calf production state in the United States which is impacted by numerous factors internal and external to the industry itself. The Theory of Reasoned Action was used to explore current trends of the Florida beef cattle industry as perceived by Florida cattle industry leaders. Thirteen themes emerged from the data, such as environmental protection and alternative proteins. Florida ranchers need support from government entities to continue participation in conservation, education, and improvement of the cattle industry in Florida. …

Synthesis Of Novel Chromenone Esters For Biochemical Assays, Andrew Dean Helmerich

Undergraduate Honors Thesis Collection

This project details the synthesis of a variety of novel chromenone esters to be used as enzymatic probes. A robust, initial library of 22 chromenone esters was successfully synthesized with differences in chain length, branching, and the incorporation of cyclic and heteroatomic moieties. These new chromenones were fully characterized by 1HNMR, 13CNMR, DEPT HRMS, 19FNMR, and HSQC. The utility of these compounds comes from the fact that they will fluoresce upon cleavage of the ester; thus, this property makes them ideal candidates to be used in the monitoring of enzymatic activity of esterases. Elucidating the enzyme-substrate structure activity relationship (SAR) …

73 | ‘Akko Iii: The 1991–1998 Excavations: The Late Periods Part 2: The Knights’ Hotel Site, The Messika Plot And Miscellaneous Studies, Danny Syon, Ayelet Tatcher

IAA Reports—Monograph Series of the Israel Antiquities Authority

Akko III: The Late Periods comprises two parts (IAA Reports 72 and 73), the third and fourth volumes in a series publishing the results of four excavations that took place within and just outside of the Old City of ‘Akko between 1991 and 1998. These two volumes present the archaeological finds from the Early Islamic to Ottoman periods, concentrating on the architecture and small finds from the Crusader period.

The present volume (Part 2; IAA Reports 73) presents the excavations in the Knights’ Hotel Site, which yielded a wealth of small items of daily use, including glass finds, lead ampullae, …

Evaluating The Success Of A Relocated Mussel Community In The Lower Sulphur River, Texas, Rachel M. Leicher

Biology Theses

Conservation efforts to preserve freshwater mussel communities have become more common as these animals become increasingly threatened by their changing habitats. As humans continue to shape and change the world around them, aquatic species living in modified and disturbed water systems can be negatively impacted leading to decline of the ecosystem. During disturbance events involving a stream, river, or pond, the relocation of affected mussel beds is becoming more widespread. Although there are few of these studies, many of those that have been conducted are seen as successful in relocating and conserving their mussel communities. This study focuses on detection …

Condition And Management Futures In A Quaking Aspen Recreation Area. Final Report To Snyderville Basin Special Recreation District, Paul C. Rogers, Georgie Corkery, Anna B. Miller

Aspen Bibliography

In partnership with Snyderville Basin Special Recreation District (SBSRD), we undertook a study of ecological conditions and user preferences within a quaking aspen recreational destination forest. The location, in two sections know as Run-A-Muk and Right Turn Sage (RAM/RTS), has experienced some forest die-off in the principally aspen dominated forest dissected by ski, bike, and hiking trails. Graduate student Georgie Corkery led the study and successfully completed a Master's degree, in addition to providing needed information to SBSRD regarding the status, uses, and preferred actions at this facility. Key outcomes regarding aspen conditions include assigning causal factors—ungulate browsing and elevated …

Napa Valley Certified Organic Viticulture Napa Valley Vineyards Go Green: Transitioning To Organic Cultivation, Eric E. Tapia

Undergraduate Honors Theses

The shift to sustainable agriculture in Napa Valley necessitates certified organic vineyards among wine industry stakeholders to facilitate systemic change. Nonetheless, numerous impediments—such as fiscal constraints, inadequate access to information, and agricultural education—are intended to address these barriers for fostering an environmental stewardship program focused on innovation and sustainability. The methods employed to investigate the transition to organic vineyards include qualitative and quantitative approaches, such as interviews with vintners and data analysis of annual crop yields and the economic impact of certified organic vineyards in Napa Valley. The investigation reveals that vineyard proprietors face significant early challenges, including a steep …

High Yield Of Congenital Hypothyroidism Among Infants Attending Children Hospital, Nairobi, Kenya. Facility Based Study In The Absence Of Newborn Screening, Menbere Kahssay, Thomas Ngwiri

Paediatrics and Child Health, East Africa

Objectives: Congenital hypothyroidism (CHT) is a treatable cause of intellectual disability. Late diagnosis and delayed initiation of treatment leads to irreversible neurodevelopmental and intellectual disability. Thus, newborn screening is crucial. However, 71 % of babies are born in an area with no established newborn screening program and Kenya is not an exception. We aimed to determine the incidence of CHT, developmental outcomes of patients in the absence of newborn screening.

Methods: A retrospective data of subjects who met the inclusion criteria, newborn and infants from 3 days to 2 years whose thyroid function test (TFT) was undertaken during well baby …

Assessment Of Drought Tolerance In Mung Bean [Vigna Radiata (L.) Wilczek] Through Phenology, Growth, Protein Yield, And Cluster Heatmap Analysis, Rafiqul Islam, Jamil Hossain, Shamsul Huda, Mohammad Golam Azam, Faruk Hossain, Aktar Uz Zaman, Safiqul Moula, Nasir Uddin Ahmed, Jamal Hossain, Ayman El Sabagh, Mohammad Sohidul Islum

The Philippine Agricultural Scientist

Mung bean [Vigna radiata (L.) Wilczek] cultivation is challenging under the changing climate as less precipitation during the summer season, which is becoming increasingly common, results in soil moisture deficiency and affects production especially at the early growth stages. Hence, this study was conducted to assess the phenology, growth, and protein yield traits of mung bean related to drought tolerance. Eight mung bean genotypes were grown in pots inside a rain-out shelter under well-watered (WW) and water-deficit (WD) conditions. These genotypes included four water stress-tolerant genotypes: G-1 (BARI Mung-8), G-2 (BMX-010015), G-3 (BMX-08010-2), and G-4 (BMX-08009-7), as well as four …

Comparing Conventional And Modified Cage Wheel Performance In Lowland Conditions, Rosalinda Abad, Michael Duldulao, Arthur Fajardo

The Philippine Agricultural Scientist

In agricultural production, significant cost consumption from tillage due to high energy input and low work performance may be reduced by improving the design of hand tractor components, specifically tractive devices. This study aimed to compare the field performance of conventional and modified cage wheels for hand tractors in terms of field efficiency (FE), wheel slip, and fuel consumption (FC). Using the Philippine standard methods of testing for walking-type tractors and a two-tailed t-test to analyze the data, results showed that the modified cage wheel had an FE of 90.09%, wheel slip of 7.78%, FC of 0.22 L/h, and FC …

Rehydration Kinetics Of Green Pea Grains Dried At Different Microwave Powers, Serap Kayisoglu

The Philippine Agricultural Scientist

In this study, both untreated and pre-treated green pea grain samples dried at different microwave output powers (90, 180, and 360 W) were rehydrated at three different temperatures (30ºC, 50ºC, and 70ºC). The rehydration kinetics of dried peas were analyzed using both the Peleg and the first-order kinetic models. Observations revealed that the Peleg model exhibited better agreement with the experimental data. As both microwave power and rehydration temperature increased, the rehydration capacity also increased in both pre-treated and untreated peas. The highest moisture content was observed after rehydration in pre-treated peas dried at 360 W microwave power (2.80 g …

Supplementation Of Commercial Probiotic Lactobacillus Casei In Rearing Early-Stage Silver Therapon (Leiopotherapon Plumbeus) Larvae: Effects On Growth, Body Composition, And Stress Tolerance, Frolan A. Aya, Reylan C. Gutierrez, Mark Joseph Reyes, Luis Maria B. Garcia

The Philippine Agricultural Scientist

Supplementation of probiotics in live feeds and rearing water may improve the growth, survival, and resistance of fish larvae. This study examined the beneficial effect of a commercial probiotic bacteria Lactobacillus casei on the growth, body composition, and stress resistance in early-stage silver therapon (Leiopotherapon plumbeus) larvae. Larvae at 12 d post-hatch (DPH) (9.76 ± 1.32 mm total length [TL] and 13.48 ± 4.80 mg body weight [BW]) were reared in triplicate groups of 15 larvae per tank from 12 – 40 DPH (Phase 1) and 41 – 96 DPH (Phase 2). From 12 – 40 DPH, larvae were fed …

Production Objectives And Trait Preferences Of Smallholder Farmers In The Philippines: Implications For Designing Breeding Schemes Utilizing Indigenous Swine Genetics, Joy Banayo, Kathlyn Louise Manese, Kaito Furusho, Madeline Kingan, Justine Ayomen, Marcelino Saliw-An, Karina Marie Nicolas, Kayvin Joel Petipit, Dorothy Pagbilao, Vea Roven Arellano, Rene Santiago, Flomella Caguicla, Arnolfo Monleon, Giselle Perlas, Giselle Perlas, Rea Palma Ortego, Sharon Singzon, Agapita Salces, Takahiro Yamagata

The Philippine Agricultural Scientist

Profit maximization is not the only production objective in farming. For smallholder farms worldwide, family sustenance often takes priority, with production being viewed more as savings-oriented than market-oriented. Furthermore, market pressures can lead to the mismanagement of indigenous livestock resources, increasing their risk of genetic erosion. To ensure the long-term conservation of the Philippine native pig, this study aimed to determine the various types of native pig farmers and define the intervention strategies for each type. A total of 432 native pig farmers representing seven provinces in the Philippines (Benguet, Kalinga, Isabela, Nueva Vizcaya, Quezon, Marinduque, and Eastern Samar; n …

Metagenomic Sequencing For Early Detection Of Future Engineered Pandemics: Foreshadowing The Privacy Challenge, Nir Eyal, Bridget Williams, Kevin M. Esvelt, Jane R. Bambauer

UF Law Faculty Publications

In this commentary, we imagine how a global system of metagenomic sequencing could be governed in order to reap the benefits and manage the risks. Global institutional engineers and their academic partners would need to develop a new governance model to ensure that all partners involved in a global metagenomic surveillance system cooperate as needed.