Digital Commons Network^™

Assessing The Effectiveness Of Student Oriented Learning Outlines (Solos) In An Equine Classroom, Kathleen S. Jogan

Graduate Theses and Dissertations

This study determined if the use of the student oriented learning outline (SOLO) in a University of Arkansas equine production classroom had a positive influence in three areas: mastery of material taught, retention of material taught and voluntary positive student behaviors related to the use of course material. Thirty-one students who were enrolled in 2012 were in the non-SOLO group (control), and 25 students who were enrolled in 2013 were the SOLO group (treatment). Three separate units were taught to the treatment and control groups with only one difference: the treatment group was given a SOLO one week in advance …

An Observation Of Apparent Teaching Behavior In The Pallid Bat, Antrozous Pallidus, Jessie P. Bunkley, Jesse R. Barber

Biology Faculty Publications and Presentations

During a laboratory study of pallid bat (Antrozous pallidus) hunting behavior, we observed an interaction wherein an adult female appeared to aid a juvenile male in learning a novel foraging task. This single observation adheres to the 3 requirements of teaching outlined by Caro and Hauser (1992). A female bat experienced with a hunting task modified her behavior in the presence of a naïve observing male, resulting in a cost of reduced food availability to the female when she was hungry, while directing the male to food resources and accelerating his learning of a foraging task. …

Effects Of Glycerol And Sire Breed On Growth And Carcass Traits Of Finishing Wether Lambs, R.M. Beck, A.E. Wertz-Lutz, C.L. Wright, J.E. Held

South Dakota State University Sheep Research Report, 2014

Objectives: To evaluate crude glycerin as an energy source for finishing lambs and to determine the effect of sire breed on finishing lamb growth performance and carcass characteristics. In light of previous research, the hypothesis for this experiment was that glycerol would have an energy value similar to that of corn when fed in high concentrate diets to finishing lambs.

Effects Of Increasing Dietary Energy Density By Replacing Hay With Soyhulls (Sh) And Dried Distillers Grains With Solubles (Ddgs) On Nutrient Digestibility And Rumen Physiology, R.D. Zelinsky, A.E. Wertz-Lutz, J.E. Held

South Dakota State University Sheep Research Report, 2014

Objectives: To determine the effects of increasing dietary energy density in lamb diets from soybean hulls (SH) and dried distillers grain with solubles (DDGS) on nutrient digestibility and rumen physiology.

Dry Matter Intake, Feed Efficiency And Animal Growth Response To Treated Corn Stover Inclusion In Lamb Finishing Diets, P.L. Reading, A. Kolthoff, J.E. Held, K. Bruns

South Dakota State University Sheep Research Report, 2014

To evaluate the effect of varying levels of treated corn stover on the dry matter intake and growth performance of growing lambs.

Effects Of Increasing The Energy Density Of A Lactating Ewe Diet By Replacing Hay With Soyhulls (Sh) And Dried Distillers Grains With Solubles (Ddgs), R.D. Zelinsky, A.E. Wertz-Lutz, J.E. Held

South Dakota State University Sheep Research Report, 2014

Objectives: To evaluate the effects of increasing the ewe’s dietary energy by replacing hay with SH and DDGS on milk production, nutrient composition, lamb growth, and changes in ewe body weight and body condition score (BCS).

Presence Of Mycoplasma Sp. In Lambs With Lung Lesions, J.A. Daniel, J.E. Held, L. Holler

South Dakota State University Sheep Research Report, 2014

Objectives: To test the impact of NPCoat administration on the prevalence of lung lesions in lambs.

Effect Of Level Of Soyhulls On Finishing Lamb Growth Efficiency And Carcass Merit, J.E. Held, R.D. Zelinsky, R. Beck, K. Bruns

South Dakota State University Sheep Research Report, 2014

Objectives: To determine the effects of soyhull (SH) based diets on finishing lamb growth performance, feed efficiency and carcass merit.

Calcium Transport Inhibition, Stimulation, And Light Dependent Modulation Of The Skeletal Calcium Release Channel (Ryr1) By The Prototropic Forms Of Pelargonidin, Thomas Joseph Dornan

Dissertations and Theses

The principle calcium regulator in the muscle cell is the calcium ion release channel (RyR). Improper calcium homeostasis in the muscle cell is the foundation of many pathological states and has been targeted as a contributing factor to ventricular tachycardia, which is known to precede sudden cardiac arrest.

Numerous endogenous and exogenous compounds can affect the way RyR regulates calcium. In this study the anthocyanidin Pelargonidin (Pg), an important natural colorant and dietary antioxidant, is evaluated for its effect on regulating the transport of calcium through the RyR1 of skeletal muscle sarcoplasmic reticulum. Pelargonidin undergoes time dependent structural changes in …

Effect Of Supplemental Trace Mineral (Zinc, Copper, And Manganese) Source On Growth Performance, Morbidity, And Trace Mineral Status In Beef Cattle, Anthony Ryan

Graduate Theses and Dissertations

A series of studies were conducted to determine the effect of supplemental trace mineral source on growth performance, morbidity, and trace mineral status in growing beef cattle. The first experiment evaluated supplemental trace minerals from sulfate, organic, or hydroxy sources on growth performance and morbidity. Crossbreed beef calves were assigned to 1 of 3 treatments consisting of supplemental zinc (360 mg/d), copper (125 mg/d), and manganese (200 mg/d) from inorganic, organic, or hydroxy sources fed daily over a 42 to 45-d backgrounding phase. After removal of chronic and dead calves from the data set, trace mineral source had no effect …

Parent Management Training In Primary Care: Feasibility, Acceptability, And Preliminary Results, Debbie Gomez

Graduate Theses and Dissertations

This study explores the notion that brief interventions delivered in primary care can lead to positive outcomes in children with externalizing behavior problems. Study aims explored behavioral problem prevalence, whether caregivers found it acceptable to receive brief behavioral interventions following routine pediatric visits for identified behavioral problems, and whether it was feasible to deliver same-day services in a primary care setting. Additionally, preliminary data were provided regarding a small N randomized control trial conducted in a primary care setting. The trial utilized either a one-session intervention comprised of evidence-based Parent Management Training components or a supportive therapy intervention for children …

Influence Of Steroids And Gonadotropins On Reproduction In Beef Cattle, Thomas L. Devine

Graduate Theses and Dissertations

The objective of this thesis was to evaluate the influence of steroids and gonadotropins on reproduction in beef cattle. In experiment 1, beef heifers were used to determine the influence of growth-promoting implants on growth, reproductive development, estrous behavior, and pregnancy rate. Heifers were assigned to 1 of 4 implant treatment groups: control (CON); trenbolone acetate (TBA); trenbolone acetate plus estradiol (TBA+E2) or zeranol (ZER). Heifers were implanted once, A.I. and exposed to bull during this experiment. Body weight, BCS, HH, RTS, estrous behavior and pregnancy data were collected throughout this experiment. Average daily gain of heifers was greater for …

Balance And Power In Older Adults With And Without A History Of Falls, Stephanie Michelle Gray

Graduate Theses and Dissertations

The purpose of this study was to observe the differences between power and balance in older adults over the age of 65 with and without falls. A total of 62 community dwelling older adults between the ages of 65 and 92 participated in the study. Two groups consisted of 25 fallers and 37 non-fallers. No statistical differences were found between groups on age, height, weight, or BMI. Testing included the Berg Balance Scale (BBS) to test balance, the Tendo Weightlifting Analyzer (TWA) during a sit-to-stand to test lower body power, and the Physical Activity Scale for the Elderly (PASE) to …

Evaluating Green Stink Bug Damage And Insect Abundance In Edamame, Benjamin Carroll Thrash

Graduate Theses and Dissertations

Edamame are an emerging crop in Arkansas, with 2013 planting estimates at 680 hectares. Although edamame are the same species as conventional soybeans grown in Arkansas, differences in use, maturity, and harvest may require creation and implementation of insect pest management approaches that differ from those used in conventional soybean production systems in order for a quality crop to be produced. Studies were conducted to determine a green stink bug damage-density relationship for edamame. Cages were used to confine green stink bugs on field-planted edamame at densities of 0, 2, 6, or 12 green stink bugs per cage (0, 0.55, …

The Effect Of Leucine Supplementation On Biomarkers Of Mitochondrial Biogenesis And Protein Synthesis In Soleus Muscle Of Rats Fed A High-Fat Diet, Gina Davis

Graduate Theses and Dissertations

Mitochondrial dysfunction is a contributing factor to the advancement of various diseases including obesity, diabetes, and cardiovascular disease. Impairment in mitochondria brings about a diminished mitochondrial number and oxidative capacity. Leucine is known to stimulate muscle protein synthesis through transcription and translation of nuclear DNA leading to increases in mitochondrial biogenesis and fatty acid oxidation. However, the effects of leucine on anabolic factors of the mitochondrial genome, during catabolic conditions are not known. PURPOSE: To determine if leucine supplementation alters the negative effects of a high fat (60%) diet (HFD) on the mitochondrial genome by measuring the gene expression of …

Tall Tales: Editing Autobiographical Memories, Holly Elizabeth Cole

Graduate Theses and Dissertations

The impact of exaggerating when sharing an autobiographical memory with another person was investigated. Literature indicates that sharing an autobiographical memory serves a social function. However no research has investigated the impact that exaggerating when sharing specific memories has on this function. Research on lying suggests that deviating from the truth would cause the listener to like the speaker less. Research on what makes a good story indicates deviating from the truth could enhance the social benefits of sharing specific autobiographical memories by increasing the quality of the story. In Study 1, participants read scenarios of a person telling a …

Correlated Response To Selection And Effects Of Pre-Slaughter Environment On Meat Quality In Broilers Divergently Selected For Muscle Color, Isaac David Harford

Graduate Theses and Dissertations

Two broiler lines divergently selected for high (HMC) and low (LMC) muscle lightness (L*) were formed from a random bred control line (RBC). After eight generations of selection, three experimental trials were conducted to investigate the correlated response to selection and effects of pre-slaughter environment on meat quality in all three lines.

In the first experiment, a total of 100 birds from each line were bled for blood chemistry analysis and were evaluated for meat quality the following day. The HMC line had higher fillet drip loss (DL), L*, heterophil to lymphocyte ratio (H:L), and platelet count (Plt), and lower …

Paws In Prison: A Second Chance, Tiffany King

Graduate Theses and Dissertations

The documentary film Paws in Prison: A Second Chance takes an in-depth look at a program that has been incorporated in seven Arkansas prisons since 2011. Select inmates housed in these prisons are chosen to learn how to become dog trainers during their sentences. They spend 24 hours a day with dogs that were rescued from shelters where they may have been euthanized. This project incorporates interviews with inmates in the Paws in Prison program, wardens at the Maximum Security Unit and the Tucker Unit, and volunteers who spend time teaching inmates how to train and socialize their dogs. The …

Effects Of Large Scale Growing Season Prescribed Burns On Movement, Habitat Use, Productivity, And Survival Of Female Wild Turkey On The White Rock Ecosystem Restoration Project Of The Ozark-St. Francis National Forest, Henry Tyler Pittman

Graduate Theses and Dissertations

Restoration of woodland and savanna ecosystems has become a common management strategy in the Central Hardwoods region. Over the past two decades forest managers have implemented woodland and savanna restoration at the landscape level (≥10,000 ha), especially using early growing season prescribed fire. The implementation of the restoration strategy has coincided with declines of Eastern Wild Turkey (Meleagris gallopavo silvestris) in many treated areas causing concern that early growing season prescribed fire was impacting wild turkey. We initiated our study to examine the effect of woodland and savanna restoration on the ecology and habitat of wild turkey in the Ozark …

Time-Space Analysis Of Terrorist Planning Cycles, Michael Stephen Gerald Eastham

Graduate Theses and Dissertations

Terrorism is among the largest threats to national and international security in today's global community. Acts of terrorism have resulted economic and societal impacts throughout the world. Improvements in technology have increased the capacity of terrorists to maximize the impact of their actions. The increasing influence and prevalence of terrorist activity has demanded research focused on the prevention of terrorist acts. A known method of terrorism prevention is uncovering a plot during its planning and preparation phase. Terrorist planning can be evaluated based on how actors move through space and time prior to the execution of their attack. General patterns …

Essays In Pro-Social Behavior, Joshua R. Foster

Graduate Theses and Dissertations

This dissertation examines individuals' actions to improve social outcomes when unrecoverable investments are necessary. Situations involving non-pecuniary and pecuniary investments are considered. In the former, the prerequisite of real effort - a non-pecuniary, unrecoverable investment - is examined when said effort determines an individual's ability to procure their preferred social outcome. Theoretical predictions over an individual's effort provision are based on their revealed preferences for the social distribution of wealth according to the general axiom of revealed preference (GARP). Laboratory experiments reveal that individuals' effort provisions do not support the assumption of stable preferences (transitivity) of wealth distribution. Specifically, individuals …

Identification Of Quantitative Trait Loci / Genes For Low-Stachyose And High-Sucrose Content In Soybean Seeds, Sandra Liliana Florez Palacios

Graduate Theses and Dissertations

Seed carbohydrate content is an important aspect in breeding for food-grade soybeans commercialized in the soyfood market. Sucrose and stachyose are the primary carbohydrates in soybean seed. Sucrose affects the quality and taste of various soyfoods such as tofu, soymilk, and natto; however, consumption of soy-based products with high stachyose concentrations can cause diarrhea and flatulence. A mutant line (V99-5089) with high-sucrose and low-stachyose has been identified. The objectives of this research were: 1) to identify sucrose QTLs in a F2-derived mapping population; 2) to investigate the genetic relationship between two low-stachyose sources, V99-5089 and the germplasm line PI200508; and …

Resting Site Characteristics Of American Marten In The Northern Lower Peninsula Of Michigan, Robert L. Sanders

Masters Theses

American marten are usually associated with forests that are characteristically late successional, closed canopy, and diverse in structure; attributes that meet habitat requirements and provide resting site structures. Resting site structures are required habitat components that are used daily and provide protection from predation and inclement weather. I identified resting site characteristics of American marten in the Manistee National Forest in Michigan’s Lower Peninsula from May 2011 to December 2013. Twenty five marten (15 male and 10 female) were monitored using radio telemetry to identify what types of resting sites structures were used. I identified 522 unique resting site structures; …

The Initial Effects Of Community Variables On Sand Prairie Restoration: Species Establishment And Community Responses, Robert Christopher Roos

Masters Theses

We established a sand prairie restoration experiment in northern Lower Michigan’s pine-oak barrens to analyze the effect of different community variables (vegetative cover, species richness, biomass, diversity, and floristic quality) when comparing: (1) how our restoration efforts (seeded treatments) compare to natural community succession (control plots), (2) how different seeding treatments affect these community variables, specifically when evaluating (2a) the effect of grass seeding densities; and (2b) the effect of different forb guilds (early flowering, late flowering, and legumes) during the initial two growing seasons of restoration establishment. In general, a comparison between seeded treatments and non-seeded control treatments indicates …

Spatial And Temporal Variation Of Macroinvertebrate Communities In The Muskegon River And Bigelow Creek, Michigan, Travis Hauri Foster

Masters Theses

The first objective of this study was to determine the relationship between zebra mussel densities/biomass and benthic macroinvertebrate composition and density in the Muskegon River at a site near Croton Dam, Thirteen benthic quadrat samples were taken along a range of zebra mussel and macroinvertebrate densities at a single sample location. Turbellaria was the only taxa to have a significant positive relationship with zebra mussel density and biomass, Simuliidae had a positive, non-significant relationship with both. No macroinvertebrate taxa decreased because of zebra mussel density/biomasss. The other objectives of this study were to compare current macroinvertebrate communities in the Muskegon …

Postmodern And Posthuman Literature, John P. Gallagher

Theses and Dissertations - UTB/UTPA

The thesis is an analysis and application of Posthuman theory. Beginning with a debate on societal progress between Slavoj Zizek and Francis Fukuyama, the thesis explores the possibility of a Posthuman ethics. The main theoretical contributors are Carey Wolfe, Corey Anton, and Benedict Anderson. The primary texts analyzed are Eric Blair's (George Orwell) 1984, Aldous Huxley's Brave New World, and William Gibson's Neuromancer.

Alcohol Promotes Mammary Tumor Growth Through Activation Of Vegf-Dependent Tumor Angiogenesis, Yanmin Lu, Fang Ni, Mei Xu, Jinlian Yang, Ji Chen, Zhuo Chen, Xinyi Wang, Jia Luo, Siying Wang

Internal Medicine Faculty Publications

Alcohol consumption has been recognized as a risk factor for breast cancer. Experimental studies demonstrate that alcohol exposure promotes the progression of existing mammary tumors. However, the mechanisms underlying this effect remain unclear. In the present study, the role of vascular endothelial growth factor (VEGF) in alcohol promotion of breast cancer development was investigated using a mouse xenograft model of mammary tumors and a three-dimensional (3D) tumor/endothelial cell co-culture system. For the mouse xenograft model, mouse E0771 breast cancer cells were implanted into the mammary fat pad of C57BL6 mice. These mice were exposed to alcohol in their drinking water. …

Novel Synergistic Protective Efficacy Of Atovaquone And Diclazuril On Fetal-Maternal Toxoplasmosis, Helieh S. Oz

Internal Medicine Faculty Publications

Over 1 billion people globally are estimated to be infected with Toxoplasma gondii with severe or unknown consequences and no safe and effective therapies are available against congenital or persistent chronic infection. We propose that atovaquone and diclazuril synergistically protect against fetal-maternal toxoplasmosis.

METHODS: Programmed pregnant mice were treated with atovaquone and diclazuril monotherapy, or combined (atovaquone + diclazuril) therapy and infected with tachyzoites (0, 300, 600) and the course of infection was studied.

RESULTS: Infected dams with low dose (300) developed moderate toxoplasmosis complications and treatments were similarly effective with minor differences between monotherapies. In contrast, major differences were …

Cardioprotection By Controlling Hyperamylinemia In A "Humanized" Diabetic Rat Model, Sanda Despa, Savita Sharma, Todd R. Harris, Hua Dong, Ning Li, Nipavan Chiamvimonvat, Heinrich Taegtmeyer, Kenneth B. Margulies, Bruce D. Hammock, Florin Despa

Pharmacology and Nutritional Sciences Faculty Publications

BACKGROUND: Chronic hypersecretion of the pancreatic hormone amylin is common in humans with obesity or prediabetic insulin resistance and induces amylin aggregation and proteotoxicity in the pancreas. We recently showed that hyperamylinemia also affects the cardiovascular system. Here, we investigated whether amylin aggregates interact directly with cardiac myocytes and whether controlling hyperamylinemia protects the heart.

METHODS AND RESULTS: By Western blot, we found abundant amylin aggregates in lysates of cardiac myocytes from obese patients, but not in controls. Aggregated amylin was elevated in failing hearts, suggesting a role in myocyte injury. Using rats overexpressing human amylin in the pancreas (HIP …

Neptune’S Trident: An Interpretation Of German Mercenaries In The Service Of The Dutch West-India Company, 1623-1645, David Beeler

Traversea: The Journal of Transatlantic History

No abstract provided.