Digital Commons Network^™

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 …

Black Male Emerging Adults: Investigating Inequalities In Adult Transitions, Social Learning, And Criminality, De Andre' Terrell Beadle

Graduate Theses and Dissertations

Emerging adulthood is a life stage that developed as a result of numerous macro-structural changes in recent decades (Arnett 2015), and which has implications for life course criminality and identity formation (Massoglia & Uggen 2010). Much research has been done in the area of the new life stage known as “emerging adulthood,” however little to no research has been done on how emerging adulthood relates to or changes classic findings in criminology, especially about the importance of disadvantages embedded in racial inequalities. This mixed method study analyzes data from the National Study of Youth and Religion (NSYR) to examine Social …

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 …

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 …

Algal Wastewater Treatment And Biofuel Production: An Assessment Of Measurement Methods, And Impact Of Nutrient Availability And Species Composition, John F. Chamberlin

Graduate Theses and Dissertations

In order to move towards a more sustainable future, human civilization will need to decrease its impacts on air and water quality and minimize consumption of fossil fuels. Using algae for wastewater treatment and biofuel production offers one approach to progress towards these goals simultaneously. Algae are capable of removing nutrients from wastewater and carbon dioxide from the air, and the biomass formed in that process can be used to generate a wide-range of products including fertilizer or fuels that could power combustion engines, power plants, or zero-emission fuel cell vehicles. Using wastewater for biofuel production has the potential to …

Place(Ment), Ashley Lynn Byers

Graduate Theses and Dissertations

Throughout her time at the University of Arkansas Master of Fine Arts program, Ashley Byers has been creating work about the folklore, landscape, and people of the Ozarks. Though she continues to create work with the Ozarks in mind, it became a motif used for a broader conversation about the ad hoc, holiness, painting, landscape, the figure, and intimacy.

In many ways, the concepts within her work are born out of the Ozarks.

When can remnants come together to become more than the sum of their parts? Derelict, easily dismissed objects, when set in the right context or viewed through …

Nanofiltration Rejection Of Contaminants Of Emerging Concern From Municipal Water Resource Recovery Facility Secondary Effluents For Potable Reuse Applications, Steven Michael Jones

Graduate Theses and Dissertations

As reuse of municipal water resource recovery facility (WRRF) effluent becomes vital to augment diminishing fresh drinking water resources, concern exists that conventional barriers may prove deficient and the upcycling of contaminants of emerging concern (CECs) could prove harmful to human health and aquatic species if more effective and robust treatment barriers are not in place.

There are no federal Safe Drinking Water Act (SDWA) regulations in place specifically for direct potable reuse (DPR) of WRRF effluent. Out of necessity, some states are developing their own DPR reuse regulations. Currently, reverse osmosis (RO) is the default full advanced treatment (FAT) …

Portrayal, Kathryn A. Wilson

Graduate Theses and Dissertations

This thesis is in addition to my thesis series, Portrayal, a group of selected photographs. In this essay I outline the contents and developments of the series of photographs by the same name. It includes information on the artistic techniques employed, concepts and considerations taken into account when making the photographs including the relationship with and presentation of the subject, the exhibition of the photographs, and influences on the specific composition and tone of the photographs.

The images in Portrayal are not candid or objective views. Each is constructed based upon the negotiations with the subject and represent an edited …

Dissemination And Persistence Of Plasmid Located, Integron Associated Antibiotic Resistant Genes In Wastewater Treatment Plant Effluent And Stream Water Bacteria, _ Suhartono

Graduate Theses and Dissertations

Transmissible plasmid-mediated integrons play important role in the persistence and dissemination of antibiotic resistance throughout the environment. Plasmids from 139 multi-antibiotic resistant Escherichia coli recovered from wastewater treatment plant effluent and upstream and downstream receiving stream water in Northwest Arkansas were extracted and profiled. Genes of class 1 and class 2 integrase (intI), mobilization (mob), sulfamethoxazole resistance (sul), and trimethoprim resistance (dfr) were detected using PCR and confirmed through DNA sequencing. Plasmids from almost half of the isolates (47%) were transmissible with mobF12 gene as the most frequently detected mobilization gene. Plasmid-borne class 1 with and without class 2 integrons …

Walking In American History: How Long Distance Foot Travel Shaped Views Of Nature And Society In Early Modern America, Brian Christopher Hurley

Graduate Theses and Dissertations

The industrialization of transportation, first with railroads, and then with automobiles, took Americans away from foot transport, changing how Americans interacted with one another and viewed their surroundings. The dissertation traces the walking trips of five central figures in this era of mechanized transport, the personal impact of their experiences while walking through a land they were accustomed to skimming across, and the ways in which these personal revelations led to changes in the national consciousness. Walking upright was central to the development of homo sapiens as a species, and shaped the way they interacted with their environment. Certain aspects …

A Method Comparison And Stressor-Response Experimental Study Of Nitrogen And Phosphorus Impacts To Periphyton In Ozark Streams, Ashley Renee Rodman

Graduate Theses and Dissertations

Stream bioassessment is important for understanding algal-nutrient relationships and the development of scientifically defensible numeric nutrient criteria. However, multiple methods of periphyton data collection are currently used, and little is known about the comparability of resulting datasets. Literature also suggests other factors besides nutrients (i.e. variable grazing, light, and flow) can confound algal-nutrient relationships. A one-year method comparison study and 31-day algal biomass-nutrient manipulative experiment were conducted in the southern Ozarks of Arkansas. The method comparison study was implemented using two common bioassessment procedures (whole-surface and delimiter-reduced periphyton removal) to assess the potential for combining datasets. During the manipulative experiment, …

Evaluation And Selection Of A Bacillus Based Direct-Fed Microbial Candidate For In Situ Enzyme Production To Improve Gut Health Integrity, Bone Quality And Growth Performance In Poultry, Juan David Latorre Cardenas

Graduate Theses and Dissertations

During the last decade, the increasing interest in renewable energy sources has been changing the distribution of corn utilization from human and animal consumption to biofuel production, leading to a continuous rise in feed costs of livestock diets. Therefore, alternative feed ingredients such as distillers dried grains with solubles (DDGS), as well as cereals like wheat, barley, and sorghum have become part of the feed matrix to maintain or reduce production costs. However, these raw materials often contain a higher concentration of antinutritional factors in comparison to corn, including non-starch polysaccharides (NSP) which increase digesta viscosity and reduce nutrient absorption …

Development Of A Biofilm Model For Evaluating Poultry Drinking Water Sanitation Procedures, Pramir Maharjan

Graduate Theses and Dissertations

Enclosed water system has created a minimal sanitation focus leading to biofilm issues which are a source of flock health challenges. A series of in vitro tests were conducted to evaluate biofilm growth on polyvinylchloride (PVC) surfaces when exposed to treated/untreated water sources (test water) that are typically supplied in commercial barns. PVC test coupons (15.16 cm2) were immersed in test water in beakers to grow biofilm. Test water supplies were characterized for microbial, mineral and pH content. Temperature of test water was set at 90 °F (32.2 ᵒC) on d1 and then dropping 1°F each day over 7-day period …

Dietary Effects On The Stoichiometry Of Growth, Regulation, And Wastes Of Ozark Stream Insect Detritivores, Halvor Matthew Halvorson

Graduate Theses and Dissertations

A widespread stressor, anthropogenic nitrogen (N) and phosphorus (P) pollution can increase resource nutrient content and alter animal community composition in freshwater ecosystems. In this dissertation, I used ecological stoichiometry theory to examine effects of diet nutrient content and leaf litter type on growth, regulation, and wastes of aquatic invertebrate detritivores. I tested effects of leaf litter diet carbon:phosphorus (C:P) on growth and stoichiometric regulation of the detritivorous caddisfly Pycnopsyche lepida and used results to determine a threshold elemental ratio of oak litter C:P=1620 that confers peak growth of this species. This empirical, growth-based approach provided a more accurate estimate …

Divining The Southwest: Liminality, Pragmatism, And Regionalism In "Death Comes For The Archbishop", Alex C. Blomstedt

Graduate Theses and Dissertations

This work aims to explore the themes of pragmatism and liminality, particularly as they pertain to spirituality, in Willa Cather’s Death Comes for the Archbishop. By taking an interdisciplinary critical approach to the novel, I will synthesize its spiritual affect into a sensibility called “pragmatic liminality.” Finally, I will connect this sensibility to other works in the Southwestern literary canon and elucidate the foundational importance that pragmatic liminality has to the Southwestern “sense of place” and its role in the larger narratives of regionalism in American literature.

[Re]Visiting The Rime: A Case Study Of Adaptation As Process And Product With The Rime Of The Ancient Mariner, Sally Ferguson

Graduate Theses and Dissertations

This thesis combines adaptation theory with ecology to examine Samuel Taylor Coleridge's Rime of the Ancient Mariner (1798) and its adaptations; it argues further combinations of adaptation with evolutionary theory and ecological ideas could allow for a better interpretation of many texts. The adaptation Rime of the Modern Mariner (2011) by Nick Hayes and the appropriation Perelandra (1943) by C.S. Lewis will also be present in individual chapters to examine the texts' interactions with each other as they evolve and how each work represents the combined theory.

Use Of A Blunt Version Of Meullenet-Owens Razor Shear To Analyze Meat Qualities Of Broilers With Woody Breast Myopathy And Reared To Various Ages, Famous Lue Yang

Graduate Theses and Dissertations

Broiler breast meat tenderness is an important meat quality attribute. There has been an increase in incidences of woody breast along with white striping as meat quality defects. These defects have been found to negatively impact meat qualities of broiler breast fillets. Woody breast can be classified by the degree of hardness into normal (NORM) and severe (SEV). The Meullenet-Owens Razor Shear (MORS) method was developed to assess broiler meat tenderness and a blunt version (BMORS) has been reported to be more sensitive at higher degrees of toughness. The present study was intended to determine the effect of age, debone …

Evaluation Of Rusle 2 To Estimate Soil Loss From Pastures, Stasha Katrina Balkissoon

Graduate Theses and Dissertations

The accurate estimation of soil erosion by the Revised Universal Soil Loss Equation version 2 (RUSLE2) is critical for several conservation assessments, least of which is its use in the Phosphorus Index (PI) to identify and rank the vulnerability of agricultural fields to phosphorus (P) runoff. Earlier versions of RUSLE reported a soil loss overestimation, which were revised to give RUSLE2, where biomass production in different climatic regions was more accurately represented. RUSLE version 2.0, which contains the new vegetative biomass production routine, was evaluated using two performance indices, the Nash Sutcliffe Efficiency Index (NSE) and Index of Agreement (D) …

Meat Quality And Sensory Analysis Of Broiler Breast Fillets With Woody Breast Muscle Myopathy, Jessica Solo

Graduate Theses and Dissertations

Recently, the poultry industry has encountered an emerging muscle myopathy known as woody breast (WB), which is characterized by hardness throughout the Pectoralis major muscle. Two experiments were performed to assess sensory characteristics and acceptability of WB meat and to determine the effect of broiler age on meat quality factors in varying severities of WB. Fillets were categorized as normal (NORM), moderate (MOD), or severe (SEV) WB. In Experiment 1 (Exp. 1), descriptive (n=9 trained panelists) and consumer (n=74 panelists) sensory analysis was conducted with NORM and SEV fillets at hot and cold serving temperatures (HOTNORM, COLDNORM, HOTSEV, COLDSEV). In …

Why Everything Is A Whole Lot Of Nothing Worth Losing Or Getting Back, David Kinzer

Graduate Theses and Dissertations

In these three stories, David Kinzer answers the collection’s title with the precision of the hard sciences. In “The Humanist,” the strained relationship between a father and son becomes even more complicated when the son marries. In “Château Royale,” a young woman moves into a new home with a dark history. The final piece, “Starting After Midnight,” follows two young people in the aftermath of a one-night stand. All of everything is inside: Gatling guns and The Birth of Tragedy, Anne Rice and Taco Bell, kit foxes and sex tips. The answer is waiting. All you need to do is …

Influence Of Fatty Acids And Their Derivatives On Aphid Resistance In Arabidopsis And Tomato, Jiamei Li

Graduate Theses and Dissertations

Fatty acid desaturases (FADs) are enzymes that act in the chloroplast or the endoplasmic reticulum (ER) to incorporate double bonds into the acyl chains of fatty acids, and recent evidence indicates that at least one of these enzymes, FAD7, also influences plant resistance to aphids. FAD7 is an enzyme in the chloroplast that is found throughout the plant kingdom and that desaturates 16- and 18-carbon fatty acids (FAs) with two double bonds (dienoic acids) to generate FAs with three double bonds (trienoic acids). In tomato (Solanum lycopersicum) and the model plant Arabidopsis thaliana, mutants with impaired FAD7 function are more …

A Gnawing Problem: Does Rodent Incisor Microwear Record Diet Or Habitat?, Salvatore Samuel Caporale

Graduate Theses and Dissertations

Dental microwear has been shown to reflect food preferences and habitat in extant vertebrates, and its analysis has been applied to fossil assemblages to infer paleodiet and paleoenvironment. Such reconstructions are, of course, only as good as the extant baseline used to infer relationships between wear pattern and diet/habitat. This study tests, through dental microwear texture analysis, the potential of modern rodent lower incisors to reveal those relationships, and evaluates the extent to which effects of diet and habitat can be parsed from the signal. Microwear texture profiles were created for individual lower rodent incisors (n=430) using confocal profilometry and …

Consumer Willingness To Pay For Genetically Engineered Edamame, Elijah John Wolfe

Graduate Theses and Dissertations

This study examined the effect of GM labeling on consumer willingness to pay (WTP) for edamame. It also investigated how people reacted to different messages and whether the order of receiving positive or negative information about GM technology impacted their willingness to pay (WTP). The study had three components: (1) a sensory test of GM and non-GM labeled products; (2) a non-hypothetical experimental auction to assess WTP for GM, non-GM and unlabeled products; and (3) a questionnaire to collect demographics and other information from the participants. Results of the sensory evaluation revealed no statistically significant difference between GM and non-GM …

Assessment Of Microbial And Growth Response Of Broilers Fed A Commercial Prebiotic, Sang In Lee

Graduate Theses and Dissertations

Prebiotic refers to nondigestible food ingredients that enhance the health of the host by selectively promoting one or more number of beneficial bacteria. Gibson and Roberfroid (1995) initially described prebiotics as compounds that neither hydrolyzed nor absorbed in upper part of the gastrointestinal tract, selectively stimulates growth of beneficial bacteria, enhance health of the host and able to amend microorganism population to healthier states. Prebiotics are particularly attractive supplements in animal production due to their variety of effects including production of short chain fatty acids, pH amendments and suppression of pathogen colonization. In addition, prebiotics were emphasized as antibiotic alternatives …

Nutritional Deficiencies During The Harvest Season According To Household Consumption And Level Of Nutritional Knowledge: A Case Study Of Northern Mozambique, Maggie Jo Hansen

Graduate Theses and Dissertations

Mozambique is classified as a low income country, the lowest development classification defined by the World Bank. It is underdeveloped in food security, agricultural production, and nutritional status, and research shows its residents are not foreign to poverty and malnutrition. Low protein, starchy foods (maize, rice, wheat, cassava) comprise the majority of the Mozambican diet; these starchy foods are the most available for consumption. Although availability impacts diet, educational barriers may also threaten the knowledge of nutrition and perceptions of healthy foods. Illiteracy and lack of education are extreme challenges to disseminating nutritional education efforts in the rural Nampula region. …