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Instructions To Authors, Academy Editors Jan 2022

Instructions To Authors, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.

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Resequencing Worldwide Spinach Germplasm For Identification Of Field Resistance Qtls To Downy Mildew And Assessment Of Genomic Selection Methods, Gehendra Bhattarai, Ainong Shi, Beiquan Mou, James C. Correll Jan 2022

Resequencing Worldwide Spinach Germplasm For Identification Of Field Resistance Qtls To Downy Mildew And Assessment Of Genomic Selection Methods, Gehendra Bhattarai, Ainong Shi, Beiquan Mou, James C. Correll

Horticulture Faculty Publications and Presentations

Downy mildew, commercially the most important disease of spinach, is caused by the obligate oomycete Peronospora effusa. In the past two decades, new pathogen races have repeatedly overcome the resistance used in newly released cultivars, urging the need for more durable resistance. Commercial spinach cultivars are bred with major R genes to impart resistance to downy mildew pathogens and are effective against some pathogen races/isolates. This work aimed to evaluate the worldwide USDA spinach germplasm collections and commercial cultivars for resistance to downy mildew pathogen in the field condition under natural inoculum pressure and conduct genome wide association analysis …

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Tick (Acarina: Ixodidae) Species And Life Stages Collected From Arkansas Wild Pigs, Allen Szalanski Jan 2022

Tick (Acarina: Ixodidae) Species And Life Stages Collected From Arkansas Wild Pigs, Allen Szalanski

Entomology and Plant Pathology Faculty Publications and Presentations

Wild pigs (Sus scrofa L.; Artiodactyla: Suidae) are found in every Arkansas county and are spreading throughout the southeastern USA. This is a public and animal health concern because wild pigs occupy the same geographical areas as humans and livestock, and can harbor over 45 animal pathogens and parasites. Little research has been conducted on the tick species parasitizing Arkansas wild pigs. Tick collections for this study were taken from feral S. scrofa trapped for control purposes by Arkansas Game and Fish Commission, USDA APHIS Wildlife Services, and University of Arkansas Cooperative Extension Service personnel. Between Feb 2019 and Jan …

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"Rerum Vel Dictu Obscenarum" De Subventione Pauperum And The Ambivalence Of The Humanitarian Narratives Of Early Modernity, Luis Fernando Restrepo Jan 2022

"Rerum Vel Dictu Obscenarum" De Subventione Pauperum And The Ambivalence Of The Humanitarian Narratives Of Early Modernity, Luis Fernando Restrepo

World Languages, Literatures and Cultures Faculty Publications and Presentations

This essay examines the De Subventione Pauperum treatise (On Assistance to the Poor, 1526) by the humanist Juan Luis Vives as a humanitarian narrative of early modernity. Contradictorily, the plan to help the indigent population presents a derogatory view of poverty that reflects the inconsistencies of the civilizing project of Renaissance Christian humanism and reveals the biopolitics of the nascent modern state and humanitarian imperial reasoning. The first section analyzes the treatise as a humanitarian narrative, with special focus on the role of emotions in the interpellation of the reader, especially the ambivalent presence of the discourse on disgust …

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Raman Spectroscopy Reveals Phenotype Switches In Breast Cancer Metastasis, Santosh Kumar Paidi, Joel Rodriguez Troncoso, Mason G. Harper, Zhenhui Liu, Khue G. Nguyen, Sruthi Ravindranathan, Lisa Rebello, David E. Lee, Jesse D. Ivers, David A. Zaharoff, Narasimhan Rajaram, Ishan Barman Jan 2022

Raman Spectroscopy Reveals Phenotype Switches In Breast Cancer Metastasis, Santosh Kumar Paidi, Joel Rodriguez Troncoso, Mason G. Harper, Zhenhui Liu, Khue G. Nguyen, Sruthi Ravindranathan, Lisa Rebello, David E. Lee, Jesse D. Ivers, David A. Zaharoff, Narasimhan Rajaram, Ishan Barman

Biomedical Engineering Faculty Publications and Presentations

The accurate analytical characterization of metastatic phenotype at primary tumor diagnosis and its evolution with time are critical for controlling metastatic progression of cancer. Here, we report a label-free optical strategy using Raman spectroscopy and machine learning to identify distinct metastatic phenotypes observed in tumors formed by isogenic murine breast cancer cell lines of progressively increasing metastatic propensities. Methods: We employed the 4T1 isogenic panel of murine breast cancer cells to grow tumors of varying metastatic potential and acquired label-free spectra using a fiber probe-based portable Raman spectroscopy system. We used MCR-ALS and random forests classifiers to identify putative spectral …

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Kalea, Brian Nicholson Dec 2021

Kalea, Brian Nicholson

Diamond Line Undergraduate Literary Magazine

Brian Nicholson is currently a Sophomore here at the University of Arkansas. He has a deep love for writing, fantasy, and storytelling in all its colors, which has largely been fed by my huge passion for Dungeons and Dragons. He is from Houston, Texas, and is a Political Science and English Major with a minor in Pre-Law, but I’m likely going to drop the Poli Sci and Pre Law and add on Literature and Creative Writing next semester!

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Garage Door, Jordan Looper Dec 2021

Garage Door, Jordan Looper

Diamond Line Undergraduate Literary Magazine

Jordan Looper is a junior Animal Science and Spanish major at the University of Arkansas. Having lived in Arkansas her entire life, she uses the nature around her as inspiration for her writings, especially in poetry and fiction. When not writing, Jordan can be found baking cupcakes or attempting a new fudge recipe (that tends to not go so well).

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Diamond Line - Fall 2021, Diamond Line Editors Dec 2021

Diamond Line - Fall 2021, Diamond Line Editors

Diamond Line Undergraduate Literary Magazine

No abstract provided.

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The Arkansas Code And Georgia V. Public.Resource.Org, Daniel Bell Dec 2021

The Arkansas Code And Georgia V. Public.Resource.Org, Daniel Bell

Arkansas Law Notes

The United States Supreme Court decided Georgia v. Public.Resource.Org, Inc. (“PRO”) in late April, 2020, a case with major implications for those who rely on the Arkansas statutes. The case addressed whether extra materials Georgia includes in its official statutes, the annotations, can be copyrighted, or if they are in the public domain and can be freely distributed without permission. The case pitted two important competing interests against each other: the ability of citizens to freely access the official versions of laws of their state, versus the interests of a third-party publisher in being compensated for its work. Arkansas produces …

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"Blazing The Trail" For The Future: Bipoc Students' Experiences With Colleges Of Agriculture, Logan Moss Dec 2021

"Blazing The Trail" For The Future: Bipoc Students' Experiences With Colleges Of Agriculture, Logan Moss

Agricultural Education, Communications and Technology Undergraduate Honors Theses

Since its founding, the United States has faced a constant turmoil surrounding the equitable treatment of people from non-Caucasian backgrounds, especially regarding education. This study sought to examine BIPOC (Black, Indigenous and People of Color) students experiences prior to entry and during their studies in colleges of agriculture within the State of Arkansas. Research has shown that across the country there are discrepancies between the percentage of BIPOC students in the State, university, and colleges of agriculture. This study used a qualitative interview method to determine the factors influencing minority students to enter and stay within a program of study …

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Evaluation Of Essential Oil Products On Performance, Intestinal Permeability, Bone Mineralization, And Oxidative Stress Parameters On Broiler Chickens Under Heat Stress Conditions, Jared Ruff Dec 2021

Evaluation Of Essential Oil Products On Performance, Intestinal Permeability, Bone Mineralization, And Oxidative Stress Parameters On Broiler Chickens Under Heat Stress Conditions, Jared Ruff

Poultry Science Undergraduate Honors Theses

The goal of this study was to show how dietary supplementation of three different formulations of essential oils (EO) affected the performance of broiler chickens during heat stress (HS). Day-of-hatch Cobb 500 chicks (n = 500) were randomly divided into four groups: 1. HS control + control diets; 2. HS + control meals supplemented with 37 ppm EO of Lippia origanoides (LO); 3. HS + control diets supplemented with 45 ppm LO + 45 ppm EO of Rosmarinus officinalis (RO) + 300 ppm red beetroot; 4. HS + 45 ppm LO + 45 ppm RO + 300 ppm natural betaine. …

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Studies Of Avian Nasal Mites (Acari: Rhinonyssidae And Ereynetidae) And Their Interaction With The Brood Parasite Brown-Headed Cowbird (Molothrus Ater: Icteridae) And Phylogenetic Inferences Of The Genus Ptilonyssus (Rhinonyssidae) On Different Passerine Hosts Associated To Three States In The Us, Alexis D. Hilario Perez Dec 2021

Studies Of Avian Nasal Mites (Acari: Rhinonyssidae And Ereynetidae) And Their Interaction With The Brood Parasite Brown-Headed Cowbird (Molothrus Ater: Icteridae) And Phylogenetic Inferences Of The Genus Ptilonyssus (Rhinonyssidae) On Different Passerine Hosts Associated To Three States In The Us, Alexis D. Hilario Perez

Graduate Theses and Dissertations

Nasal mites are endoparasites that spend their entire life cycle inside the nasal cavities and respiratory passages of birds. The Brown-Headed cowbird (Molothrus ater) (BHCO) is an icterid bird that uses brood parasitism as a reproductive strategy in which it lays an egg in the nest of a different bird species and allows the host to raise its young. Interestingly, nasal mites reported from cowbirds represent the same species found infesting other icterids and other common host groups. In the first study, I examined how diversity and host prevalence might change in a large sample size of BHCO associated with …

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Examining Risks To Honey Bee Pollinators Foraging In Agricultural Landscapes, Jon Zawislak Dec 2021

Examining Risks To Honey Bee Pollinators Foraging In Agricultural Landscapes, Jon Zawislak

Graduate Theses and Dissertations

Bee pollinators provide essential ecological services to wild plant communities, and addtremendous economic value to agriculture by improving both the quality and quantity of crop yield. Beekeepers are often contracted by growers to provide colonies of honey bees for pollination of high-value produce (fruits, vegetables and nuts). Many of the major commodity crops produced in the central and mid-southern United States are wind-pollinated (rice, corn, grain sorghum, wheat), or are sufficiently self-fertile (soybeans, cotton), and so do not require bee pollination in order to produce yield. Beekeepers still rely on these agricultural landscapes to support honey bee colonies when not …

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Thermometry Via Diffusion In Ferrous Core-Shell Nanoparticles For Induction Heating Applications, Hayden Carlton Dec 2021

Thermometry Via Diffusion In Ferrous Core-Shell Nanoparticles For Induction Heating Applications, Hayden Carlton

Graduate Theses and Dissertations

Induction heating causes the release of enormous amounts of heat from dispersed magnetic nanoparticles. While the rate of heat transfer can be easily quantified calorimetrically, measuring the temperature of the nanoparticles on the nanoscale presents experimental challenges. Fully characterizing the temperature and thermal output of these magnetic particles is necessary to gauge overall heating efficiency and to provide a more holistic understanding of heat transfer on the nanoscale. Herein, this dissertation seeks to develop a novel nanoparticle thermometry technique, which correlates diffusion behavior in core-shell nanoparticles to local temperature. Initial measurements suggested that heating silica capped ferrous nanoparticles (SCNPs) via …

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Habitat Assessment Of Ozark Glades Using Selected Epigeal Predatory Arthropods, Austin Key Jones Dec 2021

Habitat Assessment Of Ozark Glades Using Selected Epigeal Predatory Arthropods, Austin Key Jones

Graduate Theses and Dissertations

Epigeal predatory arthropods were collected with pitfall-style traps in nine sandstone glades of varying ecological stages, and management histories, in the Ozarks of Northern Arkansas over three years. These sites were categorized into three Site Types; Intact, high quality glades; Degraded, forest-encroached glades, and Restored glades which had received woody vegetation removal and burning. Collections of ground spiders (Gnaphosidae), predatory ground beetles (Carabidae), and the sole species of scorpion present in the Ozarks, Centruroides vittatus, were reported on as well as the applicability of arthropod collection methods for glade habitat assessment. Habitat characteristics were recorded for each site and analyzed …

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Respiratory Compensated Robot For Liver Cancer Treatment: Design, Fabrication, And Benchtop Characterization, Mishek Jair Musa Dec 2021

Respiratory Compensated Robot For Liver Cancer Treatment: Design, Fabrication, And Benchtop Characterization, Mishek Jair Musa

Graduate Theses and Dissertations

Hepatocellular carcinoma (HCC) is one of the leading causes of cancer-related death in the world. Radiofrequency ablation (RFA) is an effective method for treating tumors less than 5 cm. However, manually placing the RFA needle at the site of the tumor is challenging due to the complicated respiratory induced motion of the liver. This paper presents the design, fabrication, and benchtop characterization of a patient mounted, respiratory compensated robotic needle insertion platform to perform percutaneous needle interventions. The robotic platform consists of a 4-DoF dual-stage cartesian platform used to control the pose of a 1-DoF needle insertion module. The active …

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Formation Of Reactive Nitrogen Species During Dichloramine Decay And Their Impact On N Nitrosodimethylamine Formation Under Drinking Water Conditions, Huong Thu Pham Dec 2021

Formation Of Reactive Nitrogen Species During Dichloramine Decay And Their Impact On N Nitrosodimethylamine Formation Under Drinking Water Conditions, Huong Thu Pham

Graduate Theses and Dissertations

NDMA occurrence and formation pathways in drinking water systems are reviewed and NDMA yields are compared on the basis of disinfectant type, water chemistry, and precursor category. In chloramination, despite monochloramine being the predominant species between pH 7-9, evidence suggests that dichloramine is the primary species involved in NDMA formation. This is somewhat confounding as NDMA yields are maximal at pH 9, yet at pH 9 dichloramine decays faster than it forms and hence is present at trace levels; additionally, the proposed mechanism involves a spin-forbidden incorporation of dissolved oxygen as a triplet, which is presumably kinetically slow. This review …

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Field Evaluation Of Struvite As A Phosphorus Source, Niyi Sunday Omidire Dec 2021

Field Evaluation Of Struvite As A Phosphorus Source, Niyi Sunday Omidire

Graduate Theses and Dissertations

Phosphorus (P) is an element that is crucial in many biological processes in all forms of life and is not substitutable. Excess P in wastewaters leading to the degradation of receiving waters or eutrophication once released is a major environmental concern. Removal of excess P from wastewater as the mineral struvite (MgNH4PO4·6H2O) could be a promising solution to reduce P discharge into receiving waters and can potentially provide a valuable fertilizer-P source for agricultural production. The objectives of this project were to evaluate the effects of: 1) chemically precipitated struvite (CPST), compared to triple superphosphate (TSP) and an unamended control …

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I Want You To Panic: Leveraging The Rhetoric Of Fear And Rage For The Future Of Food, Iselin Gambert Dec 2021

I Want You To Panic: Leveraging The Rhetoric Of Fear And Rage For The Future Of Food, Iselin Gambert

Journal of Food Law & Policy

"Humanity Is About to Kill 1 Million Species in a Globe-Spanning Murder-Suicide. Only 11 Years Left to Prevent Irreversible Damage from Climate Change." Doomsday headlines like these are terrifying. But are they enough to make us act? The causes of the current climate crisis are many, but the science is clear that the meat and dairy industry shoulders much of the blame. Given the role the animal agriculture industry plays in perpetuating the climate crisis, combined with the harms the industry imposes on the animals and workers within it, politicians and governments—given their degree of power and influence—should ostensibly be …

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The Right To Food Comes To America, Wendy Heipt Dec 2021

The Right To Food Comes To America, Wendy Heipt

Journal of Food Law & Policy

The people of Maine recently exercised an opportunity no citizen of this country has ever had before: the ability to vote on whether to enshrine a right to food in their state constitution. This Essay provides an overview of Maine’s experience with food rights in order to explain how the state came to occupy this unique position.

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France's Organisme De Défense Et De Gestion: A Model For Farmer Collective Action Through Standard Development And Brand Management, Christopher J. Bardenhagen, Philip H. Howard, Marie-Odile Noziéres-Petit Dec 2021

France's Organisme De Défense Et De Gestion: A Model For Farmer Collective Action Through Standard Development And Brand Management, Christopher J. Bardenhagen, Philip H. Howard, Marie-Odile Noziéres-Petit

Journal of Food Law & Policy

Quality-based food production, often with a regional dimension, can provide farmers with new, value added markets. It can also provide consumers with access to place based high-quality products, and may benefit local economies through increased commerce. French Organismes de Défense et de Gestion (ODGs) illustrate a mode of quality-based agri-food business organization. ODGs focus on the development of production standards, as well as management of the intellectual property related to those standards. This mode, which is commonly used in Europe, has not often been used in the United States, despite its potential for regional food system development. The ODG mode …

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China's Food Pagodas: Looking Forward By Looking Back?, Yifei Li, Dale Jamieson Dec 2021

China's Food Pagodas: Looking Forward By Looking Back?, Yifei Li, Dale Jamieson

Journal of Food Law & Policy

In this Article we provide a close analysis of the Chinese Dietary Guidelines – the Food Pagoda. Our focus on the dietary guidelines is motivated by two main considerations. First, the guidelines represent the most comprehensive, nationwide, state sponsored effort to educate the people of China about food. Like citizens in most countries, Chinese people are presented with numerous, often competing, messages from scientists, food gurus and online influencers. The dietary guidelines are different in that they are backed by an entire suite of governmental resources for nationwide dissemination through hospitals, schools, public billboards, TV and radio ads, among others. …

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Dance In Public Space, Rachel Cruzan Dec 2021

Dance In Public Space, Rachel Cruzan

Architecture Undergraduate Honors Theses

Dance is a universal cultural phenomenon that provides physical, emotional, and social benefits. Public Space, when well-utilized, provides people with opportunities to meet various needs. In this way, Dance and Public Space have the potential for a mutually beneficial relationship, Public Space providing a way for people to meet certain needs through Dance, while Dance improves the quality of Public Space. This relationship is already in existence worldwide. This paper explores seven case studies globally where Dance occurs in Public Space. Written research is combined with diagrams developed to study key aspects of these spaces. The diagrams study Dance and …

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Journal Of Food Law & Policy - Fall 2021, Journal Editors Dec 2021

Journal Of Food Law & Policy - Fall 2021, Journal Editors

Journal of Food Law & Policy

No abstract provided.

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Tissue Engineering And The Effect Of Volumetric Muscle Loss On Muscle Performance, Alex Pemberton Dec 2021

Tissue Engineering And The Effect Of Volumetric Muscle Loss On Muscle Performance, Alex Pemberton

Biomedical Engineering Undergraduate Honors Theses

Trauma, for so many people, creates life altering injuries. One of the major injuries that results from trauma is volumetric muscle loss (VML), which is the loss of muscle tissue that cannot be naturally regenerated and results in chronic loss of function. When a small amount of damage is done to a muscle, but the underlying extracellular matrix of the cell is still intact, the muscle can regenerate much of its volume and function. If the injury damages the extracellular matrix, the injury site is instead filled with scar tissue, which cannot regenerate muscle mass or function. Seen widely in …

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Population Connectivity In Voles (Microtus Sp.) As A Gauge For Tall Grass Prairie Restoration In Midwestern North America, Marlis R. Douglas, Steven M. Mussmann, Tyler Chafin, Whitney J.B. Anthonysamy, Mark A. Davis, Matthew P. Mulligan, Robert L. Schooley, Wade Louis, Michael E. Douglas Dec 2021

Population Connectivity In Voles (Microtus Sp.) As A Gauge For Tall Grass Prairie Restoration In Midwestern North America, Marlis R. Douglas, Steven M. Mussmann, Tyler Chafin, Whitney J.B. Anthonysamy, Mark A. Davis, Matthew P. Mulligan, Robert L. Schooley, Wade Louis, Michael E. Douglas

Biological Sciences Faculty Publications and Presentations

Ecological restoration can promote biodiversity conservation in anthropogenically fragmented habitats, but effectiveness of these management efforts need to be statistically validated to determine ’success.’ One such approach is to gauge the extent of recolonization as a measure of landscape permeability and, in turn, population connectivity. In this context, we estimated dispersal and population connectivity in prairie vole (Microtus ochrogaster; N = 231) and meadow vole (M. pennsylvanicus; N = 83) within five tall-grass prairie restoration sites embedded within the agricultural matrix of midwestern North America. We predicted that vole dispersal would be constrained by the …

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Cnidarian Hair Cell Development Illuminates An Ancient Role For The Class Iv Pou Transcription Factor In Defining Mechanoreceptor Identity, Ethan Ozment, Arianna N. Tamvacakis, Jianhong Zhou, Pablo Yamild Rosiles-Loeza, Estaban Elias Escobar-Hernandez, Selene L. Fernandez-Valverde, Nagayasu Nakanishi Dec 2021

Cnidarian Hair Cell Development Illuminates An Ancient Role For The Class Iv Pou Transcription Factor In Defining Mechanoreceptor Identity, Ethan Ozment, Arianna N. Tamvacakis, Jianhong Zhou, Pablo Yamild Rosiles-Loeza, Estaban Elias Escobar-Hernandez, Selene L. Fernandez-Valverde, Nagayasu Nakanishi

Biological Sciences Faculty Publications and Presentations

Although specialized mechanosensory cells are found across animal phylogeny, early evolutionary histories of mechanoreceptor development remain enigmatic. Cnidaria (e.g. sea anemones and jellyfishes) is the sister group to well-studied Bilateria (e.g. flies and vertebrates), and has two mechanosensory cell types - a lineage-specific sensory effector known as the cnidocyte, and a classical mechanosensory neuron referred to as the hair cell. While developmental genetics of cnidocytes is increasingly understood, genes essential for cnidarian hair cell development are unknown. Here, we show that the class IV POU homeodomain transcription factor (POU-IV) - an indispensable regulator of mechanosensory cell differentiation in Bilateria and …

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Effect Of Cyclic Heat Stress On Feeding-Related Hypothalamic Neuropeptides Of Three Broiler Populations And Their Ancestor Jungle Fowl, Giorgio Brugaletta, Elizabeth S. Greene, Travis Tabler, Sara K. Orlowski, Federico Sirri, Sami Dridi Dec 2021

Effect Of Cyclic Heat Stress On Feeding-Related Hypothalamic Neuropeptides Of Three Broiler Populations And Their Ancestor Jungle Fowl, Giorgio Brugaletta, Elizabeth S. Greene, Travis Tabler, Sara K. Orlowski, Federico Sirri, Sami Dridi

Poultry Science Faculty Publications and Presentations

Heat stress (HS) has been increasingly jeopardizing the sustainability of the poultry production. Moreover, modern high-performing chickens are far less able to withstand HS than their predecessors due to higher growth rate and metabolic rates. Performance losses caused by HS are mainly ascribed to decreases in feed consumption. Since feed intake is tightly controlled by the hypothalamic centers of hunger and satiety, we sought to determine the effect of chronic cyclic HS on the expression of feeding-related hypothalamic neuropeptides (FRHN) in unselected chickens (i.e., the ancestor junglefowl—JF) and three broiler lines from diverse stages of genetic selection (i.e., the slow …

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Data Analytics For Sustainable Food And Agriculture Systems, Megan Lord Reavis Dec 2021

Data Analytics For Sustainable Food And Agriculture Systems, Megan Lord Reavis

Graduate Theses and Dissertations

The increasing concentration of anthropogenic greenhouse gases in the atmosphere is altering the climate, posing a serious threat to global agriculture and food security. Agriculture and food production contribute a quarter of all GHG emissions produced, so there is a critical need to limit emissions in this area while increasing food production to feed the anticipated 10 billion people by 2050. To address the needs of the future, data-driven solutions are needed to guide decision-making and provide support for actionable climate mitigation and survival strategies. Research efforts must be focused on analyzing problems on multiple scales, identifying new ways to …

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Engineering Fluorescently Labeled Human Fibroblast Growth Factor One Mutants And Characterizing Their Photophysics Properties Towards Designing Fret Assays, Mamello Mohale Dec 2021

Engineering Fluorescently Labeled Human Fibroblast Growth Factor One Mutants And Characterizing Their Photophysics Properties Towards Designing Fret Assays, Mamello Mohale

Graduate Theses and Dissertations

Human fibroblast growth factor one (hFGF1) belongs to a family of 22 FGF members produced by fibroblast cells. Cell signaling during physiological processes of angiogenesis and wound healing occurs when hFGF1 binds to its receptor (FGFR). However, when heterogenous homeostasis is not maintained, fibroblast cells exhibit excessive proliferation which can lead to a myriad of cancers. smFRET is an ultrasensitive distant dependent (1-10 nm) technique capable of resolving such heterogeneity in structural dynamics and binding affinities (Kd). Therefore, we successfully designed and characterized fluorescently labeled hFGF1 tracers which span the visible light region of the electromagnetic spectrum for use in …

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