Digital Commons Network^™

Innate Immunity In Chickens: In Vivo Responses To Different Pathogen Associated Molecular Patterns, Kristen Alicia Byrne

Graduate Theses and Dissertations

Pattern recognition receptors (PRRs) on host cells recognize motifs known as pathogen associated molecular patterns (PAMPs) that are common to groups of microbes. Examples include LPS on Gram-negative bacteria, the structural motif PGN common to all bacteria, MDP the smallest immunostimulatory unit of PGN, and poly I:C the dsRNA analog. PAMP recognition by and stimulation of the innate immune system is crucial to an individual’s ability to quickly limit microbial growth and stimulate the adaptive immune system. Characterization of the in vivo immune responses initiated by PAMPs has not been directly addressed. Using growing feathers (GF) as a novel intradermal …

An Investigation Of Short-Term Plasticity In Human Motor Cortex, Matthew Alan Gannon

Graduate Theses and Dissertations

Transcranial magnetic stimulation (TMS) produces a transient magnetic field that activates underlying cortical tissue by eliciting an electrical discharge of the neurons in the targeted area. Repetitive TMS (rTMS) uses patterns of repetitive TMS pulses and has been reliably shown to produce changes in the state of cortical excitability outlasting the time of stimulation. One such protocol that has demonstrated states of increased excitability is intermittent theta burst stimulation (iTBS). This method applies high-frequency bursts (50Hz) of pulses every 200 ms in trains of ten bursts. The effects of and differences between rTMS protocols have been investigated since gaining popularity …

Characterization Of Broiler Lines Divergently Selected For Breast Muscle Color, Sara Katherine Orlowski

Graduate Theses and Dissertations

An increase in the consumption of poultry has generated an increase in demand for higher yielding broilers. This has led to an increase in atypical meat and issues with appearance. Color is a direct result of a pH decline as meat goes through rigor mortis with meat generally becoming lighter. If the pH declines too rapidly or too slowly, meat quality can suffer. Physical properties of meat can be altered by pH. A fast pH decline results in pale meat with decreased tenderness. A slow pH decline can result in darker meat with a reduced shelf-life. With a known relationship …

Revision And Re-Writing As Adaptation: Using Adaptation Theory To Encourage Student Recognition Of Rhetorical Situations, Alicia Claire Troby

Graduate Theses and Dissertations

Many students don’t want to revise their writing, or do so in small, surface-level ways. This has been an issue many composition instructors have faced over the years, and there is a large body of scholarship about revision and the writing process by many in writing studies. From Nancy Sommers, Janet Emig, Donald Murray, and others, to more recent publications “post-process,” composition instructors and writing studies scholars are concerned about revision and the role it plays in students’ learning to write. As a strategy for teaching bigger-level revision, I implemented the use of adaptation theory (reading/watching and doing adaptation) as …

Evaluation Of Long-Acting Eprinomectin Compared To Conventional Anthelmintics In Cow/Calf Production, Elizabeth Ann Backes

Graduate Theses and Dissertations

Experiment 1, 83, newly weaned, fall-born crossbred heifer calves were allocated randomly to 1 of 3 anthelmintic treatments: 1) control (CON); 2) combination pour-on moxidectin and oxfendazole (MO); and 3) long-acting eprinomectin (LAE). Two preplanned orthogonal contrast statements were used: 1) to compare CON to treated cattle; and 2) to compare OXF to LAE. Heifer BW and BCS were greater (P≤0.02) from MO and LAE on d 112, 140, 154, 168, 182 compared to CON. Heifer cyclicity, estrous detection, natural service and overall pregnancy rates were greater (P≤0.02) for MO and LAE compared to CON. Cattle fecal egg counts (FEC) …

Do Limestone Quarries Act As “Engineered Sinkholes”? Analysis Of Exfiltration Of Groundwater From Limestone Quarries In The Boone Formation, Ozark Physiographic Province, Arkansas, Usa, Noel Turner

Graduate Theses and Dissertations

Limestone quarries are a source of construction materials that are utilized in our everyday lives. Karst landscapes cover up to 15 percent of the Earth’s surface, and limestone quarries are found in these environmentally sensitive regions where groundwater and surface-water interactions are dynamic and complex. Several studies have provided conceptual models of groundwater flow to and out of quarries. The goal of this research was to describe the geochemistry of water exfiltration from limestone quarries in karst regions via joints, fractures, faulting, or karst features and to determine if limestone quarries are “engineered sinkholes”; that is to say: did quarries, …

The Juvenile Addiction Risk Rating For Use In Vocational Rehabilitation, Paul Tyler Hickerson

Graduate Theses and Dissertations

The prevalence of substance use among adolescents warrants considerable concern since it often has detrimental effects on an individual’s physical and mental health, and correlates with worsened Social, physical, and employment outcomes. Research shows that adolescents with disabilities are especially susceptible to the development of substance use disorders. To address this concern and to ensure accurate rehabilitation service planning, effective screening for substance use risk is necessary. Unfortunately, the most common screening instruments for adolescent substance use rely on information obtained solely from self-report. This type of data, although useful, is also susceptible to inaccuracies due to such factors as …

The Life And Work Of George Dombek, Jeffrey Scott Ramsey

Graduate Theses and Dissertations

George Dombek is an accomplished artist who graduated from the University of Arkansas with degrees in Architecture and Painting. His career as both professor and painter has taken him around the world and produced a substantial body of work. This work seeks to examine his art in a larger art historical context and consider the development of the subjects and style of his paintings over the span of his career.

Studies In The Asymmetric Synthesis Of The C21-C34 Fragment Of The Natural Product, Antascomicin B, Brian Lee Walker

Graduate Theses and Dissertations

This dissertation describes studies in the asymmetric synthesis of the C21 – C34 fragment of the natural product, antascomicin B. Antascomicin B is structurally related to FK506, binds strongly to FKBP12, yet does not shown immunosuppressive activity. Small ligand FKBP12 binding complexes were shown to have potent neuroprotective and neuroregenerative properties in mouse models of Parkinson’s disease. The highlighted chemical reactions include an asymmetric transfer hydrogenation (ATH), Ireland-Claisen rearrangement (ICR), directed hydrogenation and allylic diazene rearrangement.

Children’S Peer Relationship Quality And Changes In Peer Victimization: The Search For Viable Intervention Targets, James Thomas Craig

Graduate Theses and Dissertations

Stable peer victimization during childhood and adolescence has been linked to both concurrent and future Social and psychological maladjustment (e.g., Hawker & Boulton, 2000; Juvonen, Graham, & Schuster, 2003; Kaltiala-Heino, Rimpela, Rantanen, & Rimpela, 2000; Reijntjes, Kamphuis, Prinzie, & Telch, 2010). Currently, there is evidence to suggest the quality of children’s peer relationships is associated with the level and course of their victimization experiences (e.g., Fox & Boulton, 2006; Schwartz, McFayden-Ketchum, Dodge, Petit, & Bates, 1999; Wolke, Woods, & Samara, 2009). Although the link between peer relationship quality and victimization has been well-documented in the literature; lacking is a thorough …

Associations Of Single Nucleotide Polymorphisms In The Bovine Prolactin, Melatonin Receptor 1a, And Dopamine Receptor D2 Genes With Hair Coat Shedding Scores And Productivity Traits In Beef Cattle, Laura R. Meyer

Graduate Theses and Dissertations

Calving rate is a qualitative trait regulated by several genes and is strongly affected by the environment. With the development of biotechnology and gene identification, scientists are able to determine which genes affect these productivity traits to improve accurate selection decisions. Prolactin (PRL) has been associated with reproductive traits, melatonin receptor 1a (MTNR1A) has been associated with meat quality traits, and the dopamine receptor D2 (DRD2) gene has been associated with hair coat score (HCS) in cattle. Our objective was to determine associations between mutations in the PRL, MTNR1A, and DRD2 genes and cow-calf profitability traits. Genomic DNA was extracted …

The Effect Of Face-To-Face Versus Computer-Mediated Communication On Interpersonal Outcomes In Getting-Acquainted Situations, Nicole Rae Brandon

Graduate Theses and Dissertations

People use technology more today than ever before to self-disclose and form new relationships with others. Successful relationship development is often marked by the presence of positive interpersonal outcomes (i.e., closeness and liking). However, there is contention regarding whether computer-mediated communication (CMC) is as effective at developing positive interpersonal outcomes compared to face-to-face (FtF) communication. CMC is often considered subpar due to the lack of nonverbal cues that can be expressed. Two studies were designed to 1) compare the effect of FtF and CMC platform self-disclosures on closeness and liking in zero-acquaintance situations and 2) explore mediators that might explain …

"Everyone Has Thought About Killing Someone - One Way Or Another": Cannibalism And The Question Of Morality In Bryan Fuller's Hannibal, Kristi Michelle Pierse

Graduate Theses and Dissertations

Popular criticism insists that violence in the media perpetuates violence in the real world. This is an especially relevant argument today as we witness on a daily basis the violence that is occurring in the United States through mass shootings, police brutality, and countless other forms of aggressive actions. While studies do show a correlation between violent media and real-world violence, there is no absolute conclusion that proves such. My thesis addresses the moral lessons that can be learned through violence on television, particularly through the creative adaptation of Thomas Harris’ Hannibal Lecter series as reimagined by Bryan Fuller in …

Cross Validation Of The Caregiving Helplessness Questionnaire: Associations With Maternal History Of Maltreatment And Intimate Partner Violence, Maegan Calvert

Graduate Theses and Dissertations

Disorganized caregiving has been associated with both maternal childhood history and current experiences of trauma. However, the methods by which disorganized caregiving has been studied have been time intensive and costly. The current study aimed to extend previous research with the Caregiving Helplessness Questionnaire (CHQ; George & Solomon, 2011), which is a self-report measure designed to assess aspects of disorganized caregiving such as caregiving helplessness, role reversal, and frightened/frightening caregiving experiences. Participants (N = 156) were a community sample of mothers of children ages 5 to 10 who were primarily white and who reported a range of traumatic experiences. It …

High Throughput Phenotypic Evaluation Of Drought-Related Traits In Soybean, Hua Bai

Graduate Theses and Dissertations

Drought limits crop growth and yield in soybean. Rapid and effective methods of screening large numbers of soybean lines for drought tolerance are urgently needed. Two experiments were conducted to evaluate the effects of drought in soybean during reproductive stages. In the first experiment five genotypes from maturity groups 2 through 5 were tested under well-irrigated and drought conditions. Beginning at R5, leaf samples were taken for nitrogen concentration analysis. Pictures were taken across the top of each plot to determine the intensity of greenness using the Dark Green Color Index (DGCI). Aerial photographs were also taken to determine aerial …

Age End-Point Effects On Performance, Carcass Measurements, And Tenderness In Goats, Kelsey Lynn Basinger

Graduate Theses and Dissertations

Goat meat is consumed all across the world, especially in developing countries. Moreover, the meat goat industry is growing in popularity in the United States due to ethnic demand of an increasing immigrant population. The objective of this study was to measure age end-point effects on performance, carcass measurements, and tenderness in goats. Intact Kiko × Boer F1 male (n = 46) kids were born on pasture in the spring of 2014 and 2015, weaned at approximately 100 d of age, and weighed monthly. Creep feed was offered to kids from birth to weaning and a high concentrate diet was …

An Inquiry Into The Distinction Between Belief And Imagination, Maxwell M. Gatyas

Graduate Theses and Dissertations

Theories of mind typically see belief and imagination as distinct cognitive attitudes. While most admit that imagination is belief-like in many ways—e.g. in its capacity to guide action, cause emotional responses, and aid in decision-making processes—the popular view is to separate the two attitudes when constructing a theory of mental architecture. The similarities are not enough for theorists to admit that the two attitudes are indistinct. Imagination, then, is construed as an “analogue” of belief, similar in many ways, but nevertheless fundamentally different. In what follows I examine these methods of distinguishing between belief and imagination. My method of examination …

Heparin-Peptide Interactions, Jacqueline Anastasia Morris

Graduate Theses and Dissertations

Heparin is a polydispersed sulfated molecule that is part of the family called glycosaminoglycans found in the extracellular matrix and cell surfaces. This molecule is extremely important for the activation of proteins and protein-receptor interactions that are responsible for downstream cell signaling pathways. Heparin has been isolated from porcine intestine and used as an anticoagulant for the prevention of embolisms, heart thrombosis, and clotting during heart surgeries. This so-called miracle drug was in use until 2008, when isolated batches were found to be contaminated with other glycosaminoglycans similar to heparin. From 2008, there has been a dire need for a …

Animal Science E-Newsletter, July 2016, University Of Arkansas, Fayetteville. Department Of Animal Sciences

Animal Science e-Newsletter

No abstract provided.

Annual Financial Report Supporting Schedules, 2015-2016, University Of Arkansas, Fayetteville

Annual Financial Report

No abstract provided.

Sequencing Terrorists' Precursor Behaviors: A Crime Specific Analysis, Brent L. Smith, Jeff Gruenewald, Kelly R. Damphousse, Paxton Roberts, Katie Ratcliff, Brent R. Klein, Ian Brecht

Research Projects

Recently completed research (Smith et al., 2016) suggests that radicalization toward violence is best viewed as a process – a journey that begins with a less-radical identity and moves toward a more radical identity and corresponding orientation. Efforts to test this theoretical assertion revealed that the process of identity construction involves a variety of behaviors that David Snow has referred to as “identify work” (Snow and Machalek, 1983; Snow and McAdam, 2000; Snow, 2004; Cross and Snow, 2011). One type of identity work –demonstration events – appeared to be particularly relevant to our ability to predict radicalization toward violence and …

Animal Science E-Newsletter, June 2016, University Of Arkansas, Fayetteville. Department Of Animal Sciences

Animal Science e-Newsletter

No abstract provided.

Outcomes In Language And Social Skills As Seen In Children With Autism And Developmental Disabilities Participating In Equine Assisted Activities, Megan Koenigseder

Rehabilitation, Human Resources and Communication Disorders Undergraduate Honors Theses

Individuals with developmental disabilities commonly present characteristics that include deficits in social and communicative abilities. A number of intervention strategies have been implemented, but none have proven to be most effective. A somewhat novel approach known as equine assisted activities and therapies (EAAT) involves the utilization of horses during intervention and has shown to be effective in areas concerning quality of life, social functioning, self-regulation, adaptive behaviors, motor control, and motivation.

The purpose of the current study is to examine the effects of EAA on social skills and expressive language in 2-4 children diagnosed with developmental disability. Participants engaged in …

History And Current Status Of The Northern Saw-Whet Owl (Aegolius Acadicus) In Arkansas, Mitchell L. Pruitt

Crop, Soil and Environmental Sciences Undergraduate Honors Theses

The secretive Northern Saw-whet Owl (Aegolius acadicus) is believed to be much more widespread during fall and winter than previously thought. Of the few places in the southern United States conducting research on this species, all have been successful at capturing birds. A total of 12 historic records existed for Arkansas until my work began in fall of 2014. The first confirmed record was in 1959 and the most recent was in 2010. Over the course of two field seasons, I captured and banded 24 saw-whet owls in rural Madison County. All birds were mist-netted along a trail, in …

Evaluation Of Protein Source At Breakfast On Energy Metabolism, Metabolic Health, And Food Intake: A Pilot Study, Lauren A. Cambias

Human Nutrition and Hospitality Management Undergraduate Honors Theses

Abstract

Over 30% of adults in the US are obese. A primary contributor to obesity is an unhealthy diet related to imbalanced macronutrients. Diets higher in protein (PRO) are associated with increased energy expenditure (EE) and reduced food intake. The objective of this pilot study was to determine if protein source at breakfast influences EE in young men (n=4; ages 18-35). Participants consumed three isocaloric (whey (WP), pea (PP), beef (BP); 275 kcal, 62% PRO, 23% CHO, 15% Fat) drinks in randomized, crossover design with a one-week washout period. Each test day EE, appetite, and cravings were assessed at 0, …

The Production And Exportation Of Arkansas Non Gmo Vs Gmo Soybeans To China, Weston Cartwright

Supply Chain Management Undergraduate Honors Theses

In recent years, the increase and shift in China’s population combined with a reduction in useable farmland due to soil contamination has prompted a significant increase in food imports. Soybeans, in particular, have become a significant import, and the United States is one of their prime suppliers. Chinese soybean imports have increased from 18 million bushels in 1996 to 1.171 billion bushels in 2015. Soybeans are used in food products like tofu and cooking oils and also as a base for animal feed. In the United States, soybeans are the second largest field crop, ranking just behind corn. Close to …

Tableau Vivant [Living Picture], G J Christopher Drobnock

Graduate Theses and Dissertations

With an overwhelming concern for functionality, the design world and industrial production have moved far beyond the pure necessity of the handmade object. With the paper coffee cup, disposable utility is the primary goal; afterwards the service is performed and the thing is discarded. On the other hand, the clay object can be used and reused allowing a personal relationship to form between the user and the object, the maker and the user. My work is meant to reconnect us with the haptic; the tacit knowledge of the physical. I want the user to think of a place beyond the …

Fragmentality, Elena Volkova

Graduate Theses and Dissertations

Contemporary art is dedicated to the conversation between the past and the present, the established and the experimental; it becomes more and more trans-border, as life itself. Nowadays, people live in the world, where their beliefs, ideas, politics, and religion are constantly colliding. The more people expand boundaries and develop connections, the more complex and tangled our society becomes as a system.

FRAGmentality presents a set of mixed media pieces incorporating painting, weaving, embroidery and three-dimensional elements dedicated to these contradictions in the modern society. It deals with structures within Social relations and human nature.

Being a representative of a …

Void Loop ( ) {, Jonathan Barrett Cromer

Graduate Theses and Dissertations

Void loop is an exhibition that addresses the dynamics of survival through an investigation of power, predation, migration, destruction, and renewal. As an installation of sculpture, video, and sound, the work on display explores associations between the human and natural worlds that inform who we are as individual, Social and biological beings. The repeated code surrounding the “void loop” title is a basic call and response serial communication between the microcontroller and the sensors. It commands the microcontroller to infinitely loop all code following the function, mimicking the repetitions of a pulsing heart. For the exhibition each piece is based …

In Rift, Aimee Marie Odum

Graduate Theses and Dissertations

In Rift is an exhibition of object, video, and sound installations investigating the process of embodying ambience from the natural world. As a whole, this work questions the distinct differences in experiencing a place psychologically, through the circulation of digital media, and holistically, in actual, present time. In Rift is comprised of two distinct works: Loose Liquids and Gorge. The first piece, Loose Liquids, contains specific imagery of water, rock, plant life, and digital blobs, combined with human cadence such as breathing, shivering, and rolling. This explores how a location’s details accumulatively contribute to an overall experience as we strive …