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Articles 481 - 510 of 3021
Full-Text Articles in Entire DC Network
Antimicrobial Tolerance In Salmonella: Contributions To Survival And Persistence In Processing Environments, Tomi Obe, Aaron S. Kiess, Ramakrishna Nannapaneni
Antimicrobial Tolerance In Salmonella: Contributions To Survival And Persistence In Processing Environments, Tomi Obe, Aaron S. Kiess, Ramakrishna Nannapaneni
Poultry Science Faculty Publications and Presentations
Salmonella remains a top bacterial pathogen implicated in several food-borne outbreaks, despite the use of antimicrobials and sanitizers during production and processing. While these chemicals have been effective, Salmonella has shown the ability to survive and persist in poultry processing environments. This can be credited to its microbial ability to adapt and develop/acquire tolerance and/or resistance to different antimicrobial agents including oxidizers, acids (organic and inorganic), phenols, and surfactants. Moreover, there are several factors in processing environments that can limit the efficacy of these antimicrobials, thus allowing survival and persistence. This mini-review examines the antimicrobial activity of common disinfectants/sanitizers used …
Effects Of Environmental Enrichments On Welfare And Hepatic Metabolic Regulation Of Broiler Chickens, Seong W. Kang, Karen D. Christensen, Michael T. Kidd, Sara K. Orlowski
Effects Of Environmental Enrichments On Welfare And Hepatic Metabolic Regulation Of Broiler Chickens, Seong W. Kang, Karen D. Christensen, Michael T. Kidd, Sara K. Orlowski
Poultry Science Faculty Publications and Presentations
The aims of this study were to find suitable environmental enrichment (EE) and evaluate the combined effect of two EEs, variable light intensity (VL) lighting program and EH, on mental health and hepatic metabolic regulation in commercial broilers. To find the advantageous EEs for broilers, three different EEs (board, hut, and ramp) were tested in trial 1. EEs were placed and the engagement of birds to EEs, dustbathing behavior, and daily physical activity were observed. Birds treated with huts showed higher engagement than the board- or ramp-treated birds (p < 0.05). The results of dustbathing behavior and daily physical activity indicated that the environmental hut (EH) is the most favorable enrichment for broilers. In the second trial, to test the effect of EHs on mental health and hepatic metabolic conditions, the brain and liver were sampled from the four treatment birds (20 lx_Con, 20 lx_Hut, VL_Con and VL_Hut) on day 42. The lower expression of TPH2 (tryptophan hydroxylase 2) of VL_Hut birds than those of VL_Con and 20 lx_Hut treated birds suggests the combining effect of EHs with the VL lighting program on the central serotonergic homeostasis of broilers. Reduced expressions of TH (tyrosine hydroxylase), GR (glucocorticoid receptor), BDNF (brain-derived neurotrophic factor) of VL_Hut treated birds compared to those of VL_Con and 20 lx_Hut birds suggest lower stress, stress susceptibility, and chronic social stress in VL_Hut treated birds. The expression of CPT1A (carnitine palmitoyl transferase 1) increased over three-fold in the liver of VL_Con birds compared to 20 lx_Con birds (p < 0.05). EHs treatment in VL birds (VL_Hut) significantly decreased CPT1A but not in 20 lx birds (20 lx_Hut). The expression of ACCα (acetyl-CoA carboxylase alpha) was significantly decreased in VL_Con birds compared to 20 lx_Con birds. There was no significant difference in the hepatic FBPase (fructose-1,6-bisphosphatase), GR, and 11β-HSD1 (11 β-hydroxysteroid dehydrogenease-1) expression between 20 lx_Con and VL_Con birds, but EHs significantly stimulated GR in 20 lx_Hut birds, and stimulated FBPase and 11β-HSD1 expression in the VL_Hut birds compared to 20 lx_Con birds, suggesting that the VL lighting program reduced fatty acid synthesis and increased fatty acid β-oxidation in the broilers’ liver and VL_Hut improved the hepatic de novo glucose production. Taken together, the results suggest that the stimulated voluntary activity by EHs in the light-enriched broiler house improved mental health and hepatic metabolic function of broilers and may indicate that the improved hepatic metabolic function contributes to efficient nutritional support for broilers.
An Evaluation Of Bacterial Wilt (Ralstonia Solanacearum) Resistance In A Set Of Tomato Germplasm From The United States Department Of Agriculture, Theresa M. Phiri, Gehendra Bhattarai, Kenani Edward Chiwina, Qiurong Fan, Haizheng Xiong, Ibtisam Alatawi, Ryan Dickson, Neelendra K. Joshi, Alejandro Rojas, Kai-Shu Ling, Ainong Shi
An Evaluation Of Bacterial Wilt (Ralstonia Solanacearum) Resistance In A Set Of Tomato Germplasm From The United States Department Of Agriculture, Theresa M. Phiri, Gehendra Bhattarai, Kenani Edward Chiwina, Qiurong Fan, Haizheng Xiong, Ibtisam Alatawi, Ryan Dickson, Neelendra K. Joshi, Alejandro Rojas, Kai-Shu Ling, Ainong Shi
Horticulture Faculty Publications and Presentations
Bacterial wilt (BW), caused by Ralstonia solanacearum, is one of the devastating diseases in tomatoes (Solanum lycopersicum L.). The use of resistant cultivars and breeding for genetic resistance is the most effective, economical, and environmentally friendly management strategy for this disease. It is necessary to screen diverse germplasm and cultivated genotypes to identify resistant resources and to develop resistant cultivars in tomatoes to combat the changing pathogen isolates. This study evaluated 40 United States Department of Agriculture (USDA) tomato accessions for their BW resistance to the R. solanacearum isolate P822 under greenhouse conditions. The tomato plants were inoculated …
Clostridium Butyricum And Carbohydrate Active Enzymes Contribute To The Reduced Fat Deposition In Pigs, Lingyan Ma, Shiyu Tao, Tongxing Song, Wentao Lyu, Ying Li, Wen Wang, Qicheng Shen, Yan Ni, Jiang Zhu, Jiangchao Zhao, Hua Yang, Yingping Xiao
Clostridium Butyricum And Carbohydrate Active Enzymes Contribute To The Reduced Fat Deposition In Pigs, Lingyan Ma, Shiyu Tao, Tongxing Song, Wentao Lyu, Ying Li, Wen Wang, Qicheng Shen, Yan Ni, Jiang Zhu, Jiangchao Zhao, Hua Yang, Yingping Xiao
Animal Science Faculty Publications and Presentations
Pig gastrointestinal tracts harbor a heterogeneous and dynamic ecosystem populated with trillions of microbes, enhancing the ability of the host to harvest energy from dietary carbohydrates and contributing to host adipogenesis and fatness. However, the microbial community structure and related mechanisms responsible for the differences between the fatty phenotypes and the lean phenotypes of the pigs remained to be comprehensively elucidated. Herein, we first found significant differences in microbial composition and potential functional capacity among different gut locations in Jinhua pigs with distinct fatness phenotypes. Second, we identified that Jinhua pigs with lower fatness exhibited higher levels of short-chain fatty …
Wanted: A Prudential Framework For Crypto Assets, Lee Reiners, Sangita Gazi
Wanted: A Prudential Framework For Crypto Assets, Lee Reiners, Sangita Gazi
Arkansas Law Review
This Article summarizes the limited publicly available data on banks’ exposure to crypto assets and offers several specific examples of how U.S. banks engage in crypto-related businesses. It then examines past guidance issued by U.S. bank regulators and explains why this guidance lacks sufficient detail to clarify the prudential requirements associated with the various crypto-related activities in which banks are engaged. The Article then assesses the adequacy of the Basel Committee on Banking Supervision’s final prudential standard for crypto-asset exposures, issued in December 2022, and finds that the measure fails to adequately address the unique risks various crypto-asset activities pose …
Just Because They Say It: Does The U.S. Really Have The “First-Ever Comprehensive Framework” For Digital Assets?, Carol R. Goforth
Just Because They Say It: Does The U.S. Really Have The “First-Ever Comprehensive Framework” For Digital Assets?, Carol R. Goforth
Arkansas Law Review
On March 9, 2022, President Biden made history by signing an Executive Order on Ensuring Responsible Development of Digital Assets. On September 16, 2022, the White House released a fact sheet proclaiming that it had produced the “First Ever Comprehensive Framework for Responsible Development of Digital Assets,” based on nine reports stemming from the Executive Order. This Article is divided into two main parts. Part one reviews the reports received by the White House, explaining what they address while pointing out open issues for which no particular direction is established. Part two assesses regulatory gaps in the crypto space in …
Irrigation Of Sand-Based Creeping Bentgrass Putting Greens With Nanobubble-Oxygenated Water, Eric J. Deboer, Michael J. Richardson, John Mccalla
Irrigation Of Sand-Based Creeping Bentgrass Putting Greens With Nanobubble-Oxygenated Water, Eric J. Deboer, Michael J. Richardson, John Mccalla
Horticulture Faculty Publications and Presentations
ultural and environmental factors can place creeping bentgrass (Agrostis stolonifera) under extreme stress during the summer months. This stress, coupled with the growth adaptation of creeping bentgrass, can result in shallow, poorly rooted stands of turf. To enhance root zone oxygen and rooting of creeping bentgrass, golf courses use methods such as core and solid-tine aerification, and sand topdressing. An additional method of delivering oxygen to the soil could be irrigation with nanobubble-oxygenated water. The properties of nanobubbles (NBs) allow for high gas dissolution rates in water. Irrigating with NB-oxygenated water sources may promote increased rooting of creeping …
Graduate Catalog Of Studies, 2023-2024, University Of Arkansas, Fayetteville
Graduate Catalog Of Studies, 2023-2024, University Of Arkansas, Fayetteville
Graduate School Catalog of Studies
No abstract provided.
Undergraduate Catalog Of Studies, 2023-2024, University Of Arkansas, Fayetteville
Undergraduate Catalog Of Studies, 2023-2024, University Of Arkansas, Fayetteville
Undergraduate Catalog of Studies
No abstract provided.
Women's Golf Record Book, 2023-2024, University Of Arkansas, Fayetteville. Athletics Media Relations
Women's Golf Record Book, 2023-2024, University Of Arkansas, Fayetteville. Athletics Media Relations
Arkansas Women's Golf
No abstract provided.
Arkansas Football Media Guide, 2024, University Of Arkansas, Fayetteville. Athletics Media Relations
Arkansas Football Media Guide, 2024, University Of Arkansas, Fayetteville. Athletics Media Relations
Arkansas Football
No abstract provided.
Arkansas Women's Basketball Record Book, 2023-2024, University Of Arkansas, Fayetteville. Athletics Media Relations
Arkansas Women's Basketball Record Book, 2023-2024, University Of Arkansas, Fayetteville. Athletics Media Relations
Arkansas Women's Basketball
No abstract provided.
Arkansas Men's Basketball Media Guide, 2023-2024, University Of Arkansas, Fayetteville. Athletics Media Relations
Arkansas Men's Basketball Media Guide, 2023-2024, University Of Arkansas, Fayetteville. Athletics Media Relations
Arkansas Men’s Basketball
No abstract provided.
Exploring The Metabolic And Mitogenic Potential Of A Hyper-Stable Variant Of Fgf1, Emma Starr, Oshadi Edirisinghe, Thallapuranam Krishnaswamy Suresh Kumar
Exploring The Metabolic And Mitogenic Potential Of A Hyper-Stable Variant Of Fgf1, Emma Starr, Oshadi Edirisinghe, Thallapuranam Krishnaswamy Suresh Kumar
Inquiry: The University of Arkansas Undergraduate Research Journal
Fibroblast growth factors (FGFs) are a family of 22 human cytokines involved in critical cellular processes, such as proliferation, differentiation, metabolism, angiogenesis, tumor metastasis, and wound healing. Among these, fibroblast growth factor 1 (FGF1) possesses a powerful mitogenic potential as it can nonspecifically bind to all four FGF receptors. However, the therapeutic applications of FGF1 are hindered by its inherent thermal and proteolytic instability, especially at physiological temperatures. This is believed to be attributed to the heparin-binding pocket at the C-terminus, which contains numerous positively charged residues that repel each other. To combat this instability, FGF1 binds to a negatively …
Law Catalog Of Studies, 2023-2024, University Of Arkansas, Fayetteville
Law Catalog Of Studies, 2023-2024, University Of Arkansas, Fayetteville
School of Law Catalog of Studies
No abstract provided.
Understanding The Impact Of Food Insecurity Among First-Generation College Students On The University Of Arkansas Campus, Madison Price, Jennie S. Popp Ph.D., Nathan Paul Kemper, Louise Michelle Hancox
Understanding The Impact Of Food Insecurity Among First-Generation College Students On The University Of Arkansas Campus, Madison Price, Jennie S. Popp Ph.D., Nathan Paul Kemper, Louise Michelle Hancox
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
The purpose of this study was to: 1) better understand food insecurity among first-generation college students and how it might differ from that of other college students, and 2) gather opinions from students that may serve as solutions to alleviate food insecurity. This study was conducted with a mixed-methods survey that included both open-ended and closed-ended questions. This survey had 670 responses. Nearly 10% of respondents stated that they were experiencing food insecurity. Almost 18% stated they were first-generation college students. A greater percentage of African American (P = 0.0022) and Hispanic Latino (P < 0.0001) students were first-generation compared to all other students, while a lower percentage (P < 0.0001) of Caucasian students were first-generation compared to other students. The results suggested that first-generation students were more likely to experience nine food insecurity impacts than non first-generation students. Further, both first-generation and non first-generation students indicated low levels of knowledge and/or use of existing resources on the University of Arkansas campus that can help address food insecurity needs. Finally, both first-generation and non first-generation respondents overwhelmingly favored food insecurity solutions centered around expanding access to campus food programs through lower costs and increased awareness of existing campus resources via improved advertising.
Stream Restoration Effectiveness In Mullins Creek In Fayetteville, Arkansas, Amadeo Scott, Shannon Speir
Stream Restoration Effectiveness In Mullins Creek In Fayetteville, Arkansas, Amadeo Scott, Shannon Speir
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
Lotic waterways are vital for habitat, food, water, and flood protection, but urbanization poses a major threat to their integrity. Runoff from urban surfaces leads to pollution, flashiness, loss of biodiversity, and other symptoms, also known as Urban Stream Syndrome (USS). Streams can be restored in order to combat USS, but most restorations are not monitored, so their long-term effectiveness is unknown. This study quantitatively evaluated a decade-old stream restoration in Fayetteville, Arkansas, to assess its effectiveness in combating USS and achieving set restoration goals, and to gain insights for future restoration projects. Restoration goals included decreasing erosion and sedimentation, …
Evaluating Efficiency And Accuracy Of Three Texture Analysis Methods For Blackberry Fruit, Rhys M. Brock, Carmen Johns, Katelyn Lust-Moore, Margaret Worthington
Evaluating Efficiency And Accuracy Of Three Texture Analysis Methods For Blackberry Fruit, Rhys M. Brock, Carmen Johns, Katelyn Lust-Moore, Margaret Worthington
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
A major objective of the University of Arkansas System Division of Agriculture (UADA) Fruit Breeding program is to improve the texture of blackberry (Rubus subgenus Rubus Watson). Blackberry varieties with improved fruit firmness transport and store well and may maintain superior quality under challenging postharvest conditions than softer varieties. Increased firmness may also make cultivars less susceptible to red drupelet reversion (RDR), a postharvest disorder of blackberries in which fully black drupelets revert to red after harvest. This research project aims to assess the efficiency and accuracy of three methods applied in evaluating blackberry firmness. The study compares instrumental analysis …
Featured Faculty Mentor/Student Team, Austin Jones, Ashley Dowling, Baylie Day
Featured Faculty Mentor/Student Team, Austin Jones, Ashley Dowling, Baylie Day
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
A Simple, Inexpensive Alkaline Method For Bacterial Dna Extraction From Environmental Samples For Pcr Surveillance And Microbiome Analyses, Abdulkarim Shwani, Bin Zuo, Adnan Alrubaye, Jiangchao Zhao, Douglas D. Rhoads
A Simple, Inexpensive Alkaline Method For Bacterial Dna Extraction From Environmental Samples For Pcr Surveillance And Microbiome Analyses, Abdulkarim Shwani, Bin Zuo, Adnan Alrubaye, Jiangchao Zhao, Douglas D. Rhoads
Poultry Science Faculty Publications and Presentations
DNA extraction for downstream molecular diagnostic applications can be an expensive, time-consuming process. We devised a method to quickly extract total bacterial DNA from environmental samples based on the sodium hydroxide lysis of cells with or without capture by magnetic beads for subsequent PCR or quantitative PCR. The final DNA extraction method using NaOH is extremely low-cost and can be completed in as little as 10 min at room temperature with dilution, or the DNA can be further purified using silica-coated paramagnetic beads. NaOH extraction was effective for Gram-negative and Gram-positive bacteria in samples from air, soil, sewage, food, laboratory …
Letter From The Dean, Jeff Edwards
Letter From The Dean, Jeff Edwards
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 25 2024, Several Authors
Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 25 2024, Several Authors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Letter From The Faculty Editor, Beth Kegley
Letter From The Faculty Editor, Beth Kegley
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Energy Content Of Acorns Of Shinnery Oak (Quercus Havardii) In The Diet Of Scaled Quail (Callipepla Squamata) In Southeastern New Mexico, J.L. Hunt, M.E. Grilliot, T.L. Best, D. Lozano-Lopez, E.R. Neilson, I.C. Castillo
Energy Content Of Acorns Of Shinnery Oak (Quercus Havardii) In The Diet Of Scaled Quail (Callipepla Squamata) In Southeastern New Mexico, J.L. Hunt, M.E. Grilliot, T.L. Best, D. Lozano-Lopez, E.R. Neilson, I.C. Castillo
Journal of the Arkansas Academy of Science
Shinnery oak (Quercus havardii) is a deciduous, low-growing shrubby tree that is a dominant plant in large areas of grassland in western Oklahoma, the Texas Panhandle, and eastern New Mexico. Acorns of the plant are important food items for many wildlife species, including scaled quail (Callipepla squamata), mourning doves (Zenaida macroura), and endangered lesser prairie-chickens (Tympanuchus pallidicinctus). We analyzed the energy content of acorns of shinnery oak obtained from the crops of scaled quail collected from plains-mesa sand-scrub in Lea and Eddy counties, New Mexico. Acorns were removed from crops and dried for 48 hours at 60°C to remove moisture …
A Survey Of Strongyle Nematodes In New England Dairy Goats, D.J. Richardson, E.M. Wray, D. Watters, U. Hanif, E. Jalbert, E. Thompson, G. Trajkovic, A.R. Sirois, N. Pilotte
A Survey Of Strongyle Nematodes In New England Dairy Goats, D.J. Richardson, E.M. Wray, D. Watters, U. Hanif, E. Jalbert, E. Thompson, G. Trajkovic, A.R. Sirois, N. Pilotte
Journal of the Arkansas Academy of Science
The paucity of information concerning the occurrence of strongyle nematodes in New England dairy goats prompted a survey of 241 dairy goats from throughout New England. Of the 241 goats examined using the McMaster technique, 104 (42.7%) were infected with strongyles with a mean intensity (+ SE) of 369.7 + 45.8 eggs per gram. Subsequent molecular examination of 50 random samples from these goats revealed a prevalence of 88% infection specifically with Haemonchus contortus. Haemonchus contortus is the most important internal parasite of sheep and goats, exerting a crushing economic burden on the livestock industry worldwide due to lowered milk …
Upcycling Imperfect Broccoli And Carrots Into Healthy Snacks Using An Innovative 3d Food Printing Approach, Safoura Ahmadzadeh, Taylor Clary, Alex Rosales, Ali Ubeyitogullari
Upcycling Imperfect Broccoli And Carrots Into Healthy Snacks Using An Innovative 3d Food Printing Approach, Safoura Ahmadzadeh, Taylor Clary, Alex Rosales, Ali Ubeyitogullari
Food Science Faculty Publications and Presentations
Vegetables are healthy foods with nutritional benefits; however, nearly one-third of the world's vegetables are lost each year, and some of the losses happen due to the imperfect shape of the vegetables. In this study, imperfect vegetables (i.e., broccoli and carrots) were upcycled into freeze-dried powders to improve their shelf-life before they were formed into food inks for 3D printing. The rheology of the food inks, color analysis of the uncooked and cooked designs, and texture analysis of the cooked designs were determined. The inks with 50% and 75% vegetables provided the best printability and shape fidelity. 3D printing at …
Instructions For Authors, Discovery Editors
Instructions For Authors, Discovery Editors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Contents, Discovery Editors
Contents, Discovery Editors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Enhancing Microwave Disinfection: Impact Of Sodium Chloride On Microbial Inactivation, Saleh A. Alfawaz, Ibrahim Nasser I. Alquaydheb, Amirreza Ghadimi Avval, Sara Ghayouraneh, Samir M. El-Ghazaly, Jianhong Zhou
Enhancing Microwave Disinfection: Impact Of Sodium Chloride On Microbial Inactivation, Saleh A. Alfawaz, Ibrahim Nasser I. Alquaydheb, Amirreza Ghadimi Avval, Sara Ghayouraneh, Samir M. El-Ghazaly, Jianhong Zhou
Electrical Engineering and Computer Science Faculty Publications and Presentations
This study explores the role of sodium chloride (NaCl) in enhancing the efficiency of microbial inactivation using microwave energy with two distinct methods: temperature-controlled treatment and predefined cycle. The primary objective is to maintain a stable temperature within the biological samples during treatment. Detailed descriptions of the treatment system’s design and the function of each element are provided. Simulations are conducted to illustrate the heating behavior of liquids with and without NaCl, revealing significant differences in temperature profiles between the two media. The experimental design and the objective behind each iteration are discussed. The experimental design includes three different power …
Mitochondrial Dna Variation In Honey Bee (Apis Mellifera) Colonies From Arkansas, U.S., Allen Szalanski
Mitochondrial Dna Variation In Honey Bee (Apis Mellifera) Colonies From Arkansas, U.S., Allen Szalanski
Entomology and Plant Pathology Faculty Publications and Presentations
This study characterized the mitochondrial DNA (mtDNA) genetic variation in Arkansas honey bee, Apis mellifera L., by sequencing a portion of the mitochondrial cytochrome oxidase (COI-COII) intergenic region). The samples were primarily of hobbyist-managed origin (n=180), as well as 32 feral colonies and two swarms. Of the 214 honey bee colonies and swarms sampled, 23 haplotypes were observed. The haplotypes were from the: A (African) (1.87%); C (South eastern European) (92.52%); M (Northern and Western European) (3.27%); and O (Near East and Middle East) lineages (2.34%). Six C lineage haplotypes were predominantly detected (n=189, 88.31%), all of which are common …