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Importance Of Grass-Legume Choices On Cattle Grazing Behavior And Performance, Brody Todd Maughan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Livestock production systems have emphasized low diversity of high-producing forage species dependent upon costly fossil-fuel inputs. However, diversity of plants in natural systems is common, and diverse plant communities enable herbivores to meet needs for nutrition and health. Plants provide herbivores with nutrients and bioactive compounds – plant secondary compounds (SCs), which at appropriate concentrations can reduce internal parasites and greenhouse gas emissions, improve nutrient utilization and enhance meat quality in ruminants. In addition, SCs confer plants more resistance to environmental challenges such as drought or pests.

With my MS program, I sought to explore foraging behavior in cattle grazing …

Comparison Of Stated Iron Concentrations Between Name Brand And Generic Children's Multivitamins, Ashlea Nicole Pettengill

Master's Theses

The mineral iron is one of the most common minerals on Earth; not only is iron found in the atmosphere, water, and plants, it is an essential mineral needed for the human body. Children need iron at a young age to ensure proper growth and development of myelin, to promote oxygen transportation within red blood cells, and to assist in Deoxyribonucleic acid (DNA) and Ribonucleic acid (RNA). With iron readily available in children's multivitamins, iron toxicity can become an issue when taking too many tablets. With two types of brands, generic and name brand, parents should be aware of the …

Interactions Between Protozoan Prey (Phylum Protista) And Their Mosquito Predators (Order Diptera, Family Cuclicidae) Prey Size And Predator Behavior Effects, Jeffrey Jay Skiff

Master's Theses

Mosquitoes (Diptera. Culicidae) are insects that are medically important as adults as they vector numerous diseases. Yet, understanding the ecology of the larval stage can lead to surveillance and control of adult populations. Aedes albopictus, Aedes triseriatus, Cu/ex corona/or, and Culex quinquefasciatus are four species of mosquito that co-occur in discarded automobile tires. Mosqui-to larvae feed on microorganisms (including protozoans) and particulate organic matter Most larval feeding experiments. howt:ver, have dealt exclusively with bacteria, fungi , and particulate organic matter Although bactena and fungi are important sources of nitrogen and lipids, they may be 111sufficient sources of carbon, which may …

Fruit And Vegetable Consumption At Bear River Charter School; A Demand Curve Analysis, Mckelle Tobey

Undergraduate Honors Capstone Projects

Many variables contribute to the rising prevalence of children being overweight and obese, one being poor nutrition and the lack of a balanced diet. Proper nutrition helps children to grow and develop normally, as well as lowers the risk of developing chronic problems such as cardiovascular disease, coronary heart disease, and certain cancers later in life. Conducted alongside an applied behavioral intervention to increase consumption of fruits and vegetables, a behavioral economic evaluation of demand curves was administered to students in the fifth through eighth grades. Findings suggest that the intervention had no significant effect on the elasticity of the …

Ebt At Farmer's Markets Is A Snap, Amanda Spackman

Undergraduate Honors Capstone Projects

Research Question: How can farmers' markets best implement the Supplemental Nutrition Assistance Program (SNAP) to increase sales and provide low income individuals with access to fresh, local produce?

This paper will discuss the use of SNAP benefits (formerly known as food stamps) at farmers' markets, with particular emphasis on the Cache Valley Gardener's Market as an example. Lack of access to adequate food is a major issue in the US. When farmers' markets work in conjunction with the federal SNAP program they can help individuals who struggle with food security to gain access to local food. There are many benefits …

Patient Perspectives Of Nutrition In Healthcare: An Exploratory Study, Matthew Gary Petersen

Undergraduate Honors Capstone Projects

Healthcare is one of the most debated and controversial issues facing our nation and the world today. From availability to affordability, healthcare influences the lives of millions of people daily. For more than a decade the World Health Organization has called for an integrated approach to improve global health by improving patient adherence to prescribed treatments. Despite this, very little improvement has been made in adherence trends since the 1980's. Some current research has focused on improved adherence through an understanding of the patient's perspective of healthcare. By understanding how the patient sees healthcare, physicians are able to provide more …

A Quantitative Comparison Of Energy Expenditure Between Exergames And Physical Activity Recommendations, Dalton A. Newell

Honors Theses

The purpose of this study was to analyze the energy expenditure associated with two commercially available exergames (Dance Dance Revolution 2 (DDR2) and Wii Sports 1: Tennis) and evaluate whether or not this type of activity could be used as a means to obtain the recommended amount of physical activity. Thirty individuals (15 males, 15 females) participated in the study. Each participant attended 3 sessions: a 30-min familiarization session and 2, 45-min testing sessions. During each testing session, participants played one of the exergames for 30 min while continuously being measured for oxygen consumption (VO₂), respiratory exchange ratio …

Tennessee Farm Bureau News - May 2013, Tennessee Farm Bureau Federation

Tennessee Farm Bureau News

No abstract provided.

Forage Yield And Quality Of Binary Grass-Legume Mixtures Of Tall Fescue, Orchardgrass, Meadow Brome, Alfalfa, Birdsfoot Trefoil, And Cicer Milkvetch, Steven R. Cox

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Managed pasture forms the foundation for much of the U.S. livestock iv production. Increased forage yield and quality can be achieved with nitrogen (N) fertilizer but increases the cost of pasture production. Rising prices of N have led to a return to the use of grass-legume pastures to reduce or replace commercial N fertilizer. There is a need to identify viable grass-legume mixtures and species planting ratios for the region of the Intermountain Western United States The purpose of this study was to identify grass-legume combinations and planting ratios that maximize forage production and forage quality in irrigated pastures. The …

The Effects Of Arch Taping On Shock Attenuation During Landing, Shun Jinnouchi

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study was to investigate the effects of two different arch taping techniques on shock attenuation during landing. Each subject (n=12, age 25.5 ± 3.37 years, height 1.73 ± 0.04 m, mass 82.06 ± 16.23) was instrumented with accelerometers at the leg and forehead (sample rate = 1000 Hz). Subjects performed landings from a 30 cm box under three taping conditions: no tape, Low Dye, and Weave. For each condition, subjects completed 5 landing trials. Rest was provided between each trial and order of conditions was counterbalanced. During each landing, accelerations were recorded at 1000 Hz for …

Biomechanical Comparison Of A Rounded Outsole Shoe And Traditional Outsole Shoe, Sarah Horsch

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of the study was to determine the effects of shoe outsole design on maximum vertical acceleration and select kinematic parameters during level and uphill walking across phases of stance. Twelve participants, 7 males (75.1±9.3 kg, 173.6±3.6 cm, 22.9±3.5 yrs) and 5 females (56.5±5.1 kg, 158.3±4.5 cm, 25.4±11.1 yrs) granted written consent and preferred walking speed was determined. An accelerometer (480 Hz) was attached to the distal leg to measure maximum leg acceleration (Aleg) and an electrogoniometer (480 Hz) was placed on the back to measure sagittal lumbar motion (LumbarROM). Sagittal video capture (60 Hz) included thigh range of …

Chronologies Of Pain And Power: Violence, Inequality, And Social Control Among Ancestral Pueblo Populations (Ad 850-1300), Ryan Patrick Harrod

UNLV Theses, Dissertations, Professional Papers, and Capstones

Analysis of human remains in the Greater Southwest offers important insights into mechanisms underlying cultural processes, human adaptability as well as behavioral flexibility and resilience in the face of change. Data collected from human remains from several sites throughout the Four Corners region of the Greater Southwest provides information on the ways that violence and social inequality were used to maintain a regional complex between AD 850 to AD 1300. Human remains were used to provide empirical data on biological (age, sex, stature, and robusticity) and cultural (mortuary context, burial practice, and site layout) identity. Skeletal remains provided information on …

Design Of An Experimental Approach To Study The Growth Of Biofilm On Polymethylmethacrylate, Eireen S. Escalona

Biomedical Engineering

Biofilms are present in virtually every solid-liquid contact surface and are partially responsible for some diseases and water cleaning. They are a community of a variety of organisms that live symbiotically and are bound together by extracellular polymeric substances, or EPS. Biofilms go through five stages of development. These include initial and irreversible attachments, maturations I and II, and dispersion. In the dental world, biofilms are often associated with mouth infections including dental caries, gingivitis and periodontitis. Elderly denture wearers are susceptible to the pathogen-causing bacteria associated with these diseases, particularly those who have Alzheimer's disease or other forms of …

Proprietary Research To Determine Feasibility Of Commercializing The Pink Oyster Mushroom, Evan P. Bumann

Department of Environmental Studies: Undergraduate Student Theses

This project serves as a feasibility experiment to bring the Pink Oyster mushroom(Pleurotus flabellatus) into constant domestic cultivation for the purposes of commercialization. Important data acquired from growth trials were growth timelines and yields. This information was used to generate interactive spreadsheets with which one can determine possible cost and profit in a variety of scenarios. The first portion of the experiment involved constructing a growth chamber, which can achieve and maintain stable environmental conditions. This portion was successful. Secondly, the numbers obtained from the experimental growth trials were used to determine future projections from the perspective of …

Beef Production & Consumption: Sustainable Alternatives, Jennifer W. Macadam, Roslynn Brain

Environment and Society Faculty Publications

Sustainable living involves choosing a lifestyle with minimal environmental impacts. The ultimate goal is to leave future generations with a healthier environment than the one we were born into. How can we do that with beef consumption? Beef is part of American culture, so is there a way to make wiser choices when it comes to purchasing beef ? The short answer is, yes!

Myelin Is Not Required For Maintenance Of The Axon Initial Segment, Anna Josephson

Theses and Dissertations

Axonal pathology is a major contributor to impaired motor, sensory and cognitive dysfunction associated with multiple sclerosis particularly with the progressive forms of the disease. However, the early pathologic events responsible for axonal deterioration remain unclear. It is well recognized that maintaining proper axonal function is intimately related to proper establishment and maintenance of axonal domains such as the node of Ranvier and the axon initial segment (AIS). Numerous laboratories, including ours, have investigated the mechanisms that regulate node of Ranvier formation and maintenance. These studies have shown that node of Ranvier formation and maintenance require myelin contact. Interestingly, many …

Groundcover Management System And Nutrient Source Impact Physical Soil Quality Indicators In An Organically Managed Apple Orchard, Neal Mays

Graduate Theses and Dissertations

In March 2006, four groundcover management systems (GMS) and two nutrient sources (NS) were implemented for their ability to alter the soil physical condition of a newly established, organically managed apple (Malus x domestica Borkh.) orchard. Annual applications of municipal green compost (GC), shredded office paper (SP), wood chips (WC), and mow-blow (MB) grass mulch were utilized as GMS, and NS supplied to trees were from composted poultry litter (PL), a commercial organic fertilizer (CF), or an untreated control (NF) in a 4x3 factorial study. An established, conventionally-managed orchard was located adjacent to the organic research orchard on the same …

Predicting Complex Phenotype-Genotype Relationships In Grasses: A Systems Genetics Approach, Stephen Ficklin

All Dissertations

It is becoming increasingly urgent to identify and understand the mechanisms underlying complex traits. Expected increases in the human population coupled with climate change make this especially urgent for grasses in the Poaceae family because these serve as major staples of the human and livestock diets worldwide. In particular, Oryza sativa (rice), Triticum spp. (wheat), Zea mays (maize), and Saccharum spp. (sugarcane) are among the top agricultural commodities. Molecular marker tools such as linkage-based Quantitative Trait Loci (QTL) mapping, Genome-Wide Association Studies (GWAS), Multiple Marker Assisted Selection (MMAS), and Genome Selection (GS) techniques offer promise for understanding the mechanisms behind …

Attaining Sustainable Behavior Among Non-Environmentally-Motivated Individuals: A Formative Experiment, Brooklynn Wynveen

All Dissertations

Experts agree that overconsumption is a major problem in Western culture today, particularly in the United States. Thus, it is important to promote sustainable behavior among the general public. And yet, existing educational programming geared toward promoting such behavior changes remains appealing largely to environmentally-motivated audiences, as opposed to individuals with alternative (i.e., social and economic) motivations. In response to this discrepancy, I conducted a formative experiment with the goals of: 1) fostering participation among non-environmentally-motivated individuals in sustainable living educational programming; and 2) obtaining behavior change commitments, in the direction of more sustainable lifestyles, from those participants.
As part …

Integrating Biomechanics And Cell Physiology To Understanding Ivd Nutrition And Cell Homeostasis, Yongren Wu

All Dissertations

Back pain associated with degeneration of the intervertebral disc (IVD) is a major public health problem in Western industrialized societies. Degeneration of the IVD changes the osmotic and nutrient environment in the extracellular matrix (ECM) which affects cell behaviors, including: cell proliferation, cell energy metabolism, and matrix synthesis. In addition, a thin layer of hyaline cartilaginous end-plate (CEP) at the superior/inferior disc-vertebral interface was found to play an important role in nutrient supply as well as load distribution in the IVD. Therefore, our general hypothesis is that the CEP regulates the ECM osmotic and nutrient environment which further affects IVD …

The Effect Of Non-Marine Vs. Marine Sources Of The Omega-3 Fatty Acids, Dha And Epa, On Serum Lipoproteins, Mary C. Rodavich

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background: Fish oil (FO) is a marine source of n-3 fatty acids, eicosapentaenoic acid (EPA) and docosahexanaenoic acid (DHA), and has been shown to improve heart health.;Objective: The purpose of this study was to determine the cardiovascular effects of non-marine sources of n-3 fatty acids, algae oil (AO) and yeast oil (YO), as compared to fish oil (FO).;Methods: Male ICR mice (8 wk old, n=100) were randomly assigned to dietary treatment groups: soy oil (SO; 0 g/kg DHA or EPA), FO (7.03 g/kg DHA + 12.64 g/kg EPA), AO (7.03 g/kg DHA + 0.13 g/kg EPA), YO (0.018 g/kg DHA …

The Effects Of Feeding Growing Female Rats Different Sources Of Omega-3 Polyunsaturated Fatty Acids On Lipogenic Gene Expression And Lipid Metabolism In Liver And Adipose Tissues, Kaitlin Mock

Graduate Theses, Dissertations, and Problem Reports (ETD)

Omega-3 polyunsaturated fatty acid (n-3 PUFA) consumption has increased through diet and supplementation due to reports of health benefits. The objective of this study was to determine whether different n-3 PUFA sources play a role in lipid metabolism by altering lipogenic gene expression, serum lipids and lipoproteins, and inflammation. Young (aged 28 days) female Sprague-Dawley rats were assigned to one of six diets: corn oil (CO, control), flaxseed oil (FO), krill oil (KO), menhaden oil (MO), salmon oil (SO), or tuna oil (TO). qPCR was used to analyze relative gene expression. Only MO-fed rats had down-regulated gene expression of the …

The Effect Of Organic Acids On Compositional Characteristic Of Protein And Lipid Recovered During Isoelectric Solubilization/Precipitation Processing Of Silver Carp And The Effectiveness Of These Organic Acids On The Reduction Of Staphylococcus Aureus, Maryam Ronaghi

Graduate Theses, Dissertations, and Problem Reports (ETD)

An effective method to recover protein, called ISP processing, uses extreme pH shifts to solubilize protein and then recover it by precipitation and centrifugation. The objective of this study was to determine the proximate composition of the recovered materials from ISP after processing with different acid concentrations and the bactericidal effectiveness of these acids in comparison with hydrochloric acid (HCl) and acetic acid against Staphylococcus aureus during isoelectric solubilization and precipitation (ISP) processing. Headed and gutted silver carp were homogenized and brought to the protein solubilization pH (2.5, 3.0, 11.5, or 12.5) using the acids (glacial L-lactic acid and formic …

Spatial Relationship Between The Trichloroethylene Degrading Bacteria Dehalococcoides Sp., Sulfate Reducers And Archaea During Reductive Dechlorination, Pujya Wagle Gautam

Graduate Theses, Dissertations, and Problem Reports (ETD)

Trichloroethylene (TCE) released to the environment is of great concern due to its toxicity and carcinogencity. The microorganisms involved in bioremediation of TCE such as methanogens (organisms within the domain Archaea), sulfate reducing bacteria (SRB) and Dehalococcoides sp. (DHC) are of particular interest in this study. Three different types of bench scale reactors were constructed to model different aquifer types such as sandy, silty and fractured bedrock aquifers (hereafter type 1, 2 or 3 reactors, respectively). This study evaluated the effect of TCE concentration in different types of reactors on the distribution of selected microorganisms with distance from the source …

The Moderating Effect Of Skin Conductance Level On The Relationship Between Family Conflict And Disordered Eating Behaviors, Laura B. Kenneally

Psychology

The purpose of this study was to examine the moderating effect of the sympathetic nervous system (SNS) on the relation between family conflict and disordered eating behaviors. Participants were 67 undergraduate students at the University at Albany, SUNY, ages 17 to 40. Researchers used a retrospective measure of harsh parenting and interparental aggression experienced during childhood and adolescence to determine how sympathetic activation interacts with family conflict in predicting disordered eating behaviors in a sample of university students. SNS activation was measured by baseline skin conductance level (SCL). Results indicated that SCL moderated the relationship between harsh parenting experienced during …

For Want Of Sloops, Water Casks, And Rum: The Difficulties Of Logistics In The Canadian Theater Of The Seven Years War, Daniel Bazan

Masters Theses

The thesis examines the various difficulties with logistics the British needed to overcome in Canada during the Seven Years War and those who helped . Without the necessary supplies and provisions for frontier campaigning, Britain would have lost the war. The thesis provides primary accounts of the geography during the war, various logistical factors, and the men that helped provide the necessary materials for the successful outcome of the British offensive in Canada.

Forage Quality Of Andropogon Gerardii Across A Precipitation Gradient, Juliette Donatelli

Theses

This study focused on the ecotypic variation in forage quality of Andropogon gerardii Vitman, a dominant C4 grass in North American grasslands and an important forage grass for native and introduced grazers. Ecotypes are genetic variations of a plant species adapted to local environmental conditions. Andropogon gerardii is represented by many local ecotypes across its range. Forage quality analyses quantify digestibility and nutrition of a plant sample and allow an assessment of nutritional value for grazers. The variability in forage quality among A. gerardii ecotypes is unknown. This study aimed to quantify variation in forage quality of A. gerardii collected …

Cleft Palate And Early Intervention: Beginning The Treatment Process, Hayley Kennard

Research Papers

No abstract provided.

The Role Of The Speech Language Pathologist In The Neonatal Intensive Care Unit, Kristin Grabowski

Research Papers

No abstract provided.

Implications Of Tanzanian Culture On Nutrition And Their Effects In People Living With Hiv/Aids, Jennifer Pollard

Anthropology

Many Africans living with HIV/AIDS also suffer from malnutrition. Together, HIV and malnutrition greatly compromise the immune system of an individual, with each condition increasing the effects of the other. This field study examines Maasai in the Arusha region of Tanzania where approximately 5.6% of the population is infected with HIV/AIDS and 45% of children exhibit stunted growth, indicating chronic malnutrition within the population. Cultural factors including gender inequality, knowledge levels, and traditions associated with Maasai (the predominant tribe in the Arusha region) were analyzed in their contributions to malnutrition and HIV. The study was conducted over three months in …