Digital Commons Network^™

Exertional Rhabdomyolysis In A 21-Year-Old, Healthy Female After Performing Three Sets Of The Biceps Curl Exercise To Failure With 30% 1rm: A Case Report, Noelle M. Yeo, Brianna D. Mckay, Amelia A. Miramonti, Nathaniel D. M. Jenkins, Joel T. Cramer

UCARE: Research Products

Background: The optimal resistance training program to elicit muscle hypertrophy has been consistently debated and researched. Although 3 sets of 10 repetitions at 70-80% of the 1-repetition maximum (1RM) is widely recommended, recent studies have shown that low-load (~30% 1RM), high-repetition (3 sets of 30-40 repetitions) resistance training can elicit similar muscular hypertrophy. Therefore, this type of resistance training has gained popularity, perhaps because less weight is lifted for a longer duration. In the process of testing this hypothesis in a research study in our laboratory, a subject diagnosed with exertional rhabdomyolysis after completing a single resistance training session …

Effect Of Breathing Apparatus On The Patterns Of Response For Physiological Variables During An Incremental Test To Exhaustion, Rachel Lechtenberger, Kristen C. Cochrane, Terry J. Housh

UCARE: Research Products

During running exercise, trained runners will utilize both nasal and oral breathing mechanisms. However, during most clinical running tests, the breathing apparatus blocks the nasal pathway, therefore only allowing oral breathing. It has been suggested that a breathing apparatus that allows both nasal and oral breathing may provide an environment that is more similar to running outside of a lab setting. PURPOSE: The purpose of this study was to examine the patterns of responses for physiological variables during an incremental treadmill running exercise test to exhaustion utilizing both a traditional mouth piece (MP) and breathing mask (MSK) apparatus. METHODS: …

Time Course Of Changes In Neuromuscular Parameters During Fatiguing High-Load And Low-Load Concentric Dynamic Constant External Resistance Leg Extension Muscle Actions, Cory M. Smith

Department of Nutrition and Health Sciences: Dissertations, Theses, and Student Research

The purpose of this study was to simultaneously assess electromyographic (EMG) and mechanomyographic (MMG) signals to examine the time course of changes in EMG amplitude, EMG frequency, MMG amplitude, and MMG frequency from the vastus lateralis (VL), vastus medialis (VM), and rectus femoris (RF) muscles during high-load (70%1 repetitions maximum; 1-RM) and low-load (30% 1-RM) concentric, dynamic constant external resistance (DCER) leg extension muscle actions to failure. Twelve men performed two randomized visits consisting of either 30 or 70% 1-RM DCER leg extension muscle actions to failure. Maximal voluntary isometric contractions (MVIC) and 1-RM measurements were performed before and after …

Using Interactive Engagement Strategies To Enhance Learning In College Science Courses, Bailey Z. Kreager, Leilani Arthurs

Discipline-Based Education Research Group Speaker Series

The number of decreasing science majors in U.S. institutions of higher education is connected to the quality of science instruction (Seymour, 1994; Daempfle, 2003) and resulted in nation-wide efforts to improve the quality of college-level science education (National Committee on Science Education Standards and Assessment et al., 1996; NGSS Lead States, 2013). This talk presents historical trends in the adoption of interactive engagement (IE) strategies in college-level science courses and presents one such IE strategy, lecture tutorials (LTs), in the context of sedimentology and stratigraphy.

To determine historical trends in the adoption of IE strategies, peer-reviewed journal articles accessible via …

Gamma Sigma Delta, Nebraska Chapter Newsletter, Issue #52 Spring 2016

Gamma Sigma Delta, Nebraska Chapter: Newsletters

President’s Message — Dana W. R. Boden, President, Nebraska Chapter

GAMMA SIGMA DELTA NEW MEMBERS

2015 Gamma Sigma Delta Awards
Award of Merit for Service, Recipient: Steven Waller
Award of Merit for Service, Recipient: Paul Hay
Excellence in Research Award, Recipient: Andrea Cupp
Excellence in Teaching Award, Recipient: Merlyn Nielsen
Excellence in Extension Award, Recipient: Cheryl Burkhart-Kriesel
Lauren Skrabal –Outstanding Undergraduate
Kevin Sargent –Outstanding Graduate Student
Hillary Fischer -Arthur von Bergen Memorial Award
Elizabeth Carreiro –Outstanding Undergraduate Finalist

In Memoriam:
Charles Robert Fenster, 96, of Gering
Walter Thaine Bagley, 88, of Lincoln

Gamma Sigma Delta Committees 2016

Rural Civic Action Project Poster, Heartland Center For Leadership Development

Heartland Center for Leadership Development Materials

The final project for the Rural Civic Action Project is to create a poster that includes the Community Capital Mapping activity (CCMA; Keith & Kinsey, 2013). The Community Capital Maps provide an opportunity to evaluate the impact of the projects from the participants’ perspective. Fellows should include one map on their poster: the center of the map should be “Engaging in the Rural Civic Action Program. Also included on the poster is a narrative describing the map.

How Microbial Communities Differ In Ruminants On A Glycerin Vs Common Diet, Makala Muller, Nirosh D. Aluthge, Allison L. Knoell, Morgan Kaiser, Samodha C. Fernando

UCARE: Research Products

Can we reduce methane by using dietary interventions to reduce carbon footprint and increase feed efficiency? Ruminant livestock account for a significant amount of the anthropogenic methane produced in the U.S. All ruminant livestock produce 28% of the earth’s methane emissions. The methane within ruminants is produced by a microbial fermentation, especially by a group of bacteria known as the methanogens. However, the different species of methanogens and their pathways of methane production within ruminants are not fully understood. Cattle are considered one of the main producers of methane. They produce 20% of the U.S. methane emissions. Methane absorbs more …

Examining Maternal Obesity Effects On Oogenesis, Follicular Development, And Embryonic Myogenesis, Chris Lindeman, Jennifer Wood

UCARE: Research Products

The CDC estimates that more than one-third of U.S. adults (approximately 78.6 million) are obese. Despite national efforts to combat this with diet and exercise, the number of obese adults and children continues to climb. It is critical to emphasize that obesity can lead to lifelong, chronic complications and health risks including hypertension, heart disease, and diabetes.

Diet and obesity also have important impacts on the reproductive health of female including the ability to become pregnant (fertility) and risk for complications during pregnancy. Furthermore, for women who do become pregnant, obesity can affect the development of the embryo and fetus, …

Beef Systems Management Strategies: Calving Date Selection, Estrus Synchronization, And Post-Weaning Management, Benjamin T. Tibbitts

Department of Animal Science: Dissertations, Theses, and Student Research

The objective of an invited review and four experiments was to evaluate production implications and economic efficiencies of beef systems strategies involving calving date selection, utilization of reproductive technology, and post-weaning management of heifers and steers. The invited review in chapter II considers factors that influence a producer’s decision on when to calve beef females. The calving date decision impacts the entire beef production cycle and must take into account any environmental conditions, available resources, and cite specific advantages and/or disadvantages. Understanding the importance of varying physiological state and nutrient demands associated with lactation and gestation is critical to optimizing …

The Effect Of Diet On The Bovine Rumen Microbial Community Structure And Composition And Its Effects On Methane Production In Growing And Finishing Cattle, Allison L. Knoell

Department of Animal Science: Dissertations, Theses, and Student Research

Methane is a potent greenhouse gas (GHG) that contributes to global warming. A natural by-product of ruminant fermentation is the production and eructation of methane. Methane is produced by a small unique group of microorganism’s called methanogens that belong to the domain Archaea. Enteric methane represents 2-12% energy loss in ruminants. It is well established that diet affects the microbial community structure and composition. Fermentative products of the mixed microbial population (bacteria, fungi, and protozoa) become the substrates for methanogens. These substrates influence which microorganisms will thrive. However, the effect of diet on the microbial community while simultaneously calculating …

Growing A Healthy Future, Spring 2016

Institute of Agriculture and Natural Resources: Institute Publications

Food Science and Technology; Healthier Choices; Mycotoxins; International Students; Education Abroad; Conservation Agriculture; Food Security; Project SENSE; Fighting Wildfires; Faces to Watch; Alumni Feature

Droughtscape, Spring 2016, National Drought Mitigation Center

DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)

Contents

Director’s report

First quarter drought summary

First quarter drought impacts

Drought Risk Management Research Center

Kenyan official visits

DrIVER eyes forecasting

Drought scenario exercise

Student projects

Drought tournament

Response and recovery guide

Drought Portal

Network of drought observers

Caribbean “writeshops”

Communications staff grows

Regeneration And Transformation Of Common Bean (Phaseolus Vulgaris L.), Iqbal Singh

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Common bean is the most important grain legume for direct human consumption and serves as main source of dietary protein for millions of people in developing world. Genetic transformation methods can serve as an important tool to complement traditional plant breeding methods for common bean improvement. Low transformation frequencies and unstable genetic integration associated with biolistic methods limits its use for routine transformation of common bean. In an attempt to develop Agrobacterium tumefaciens mediated transformation protocol for common bean, potential of primary leaves as an explant was analyzed following unsuccessful results with other tissues. Primary leaf explants were prepared from …

Characterization Of Extraction Methods To Recover Phenolic-Rich Extracts From Pinto Beans (Baja) That Inhibit Alpha-Amylase And Alpha-Glucosidase Using Response Surface Approaches, Mohammed Alrugaibah

Department of Food Science and Technology: Dissertations, Theses, and Student Research

Pinto beans contain high levels of diverse phenols, known mainly for their potent antioxidative properties. However, reports have shown that phenols can inhibit the carbohydrate–hydrolysis enzymes, alpha-amylase and alpha-glucosidase, thereby retarding glucose absorption. Still, a severe gap in knowledge exists on the ability of pinto beans to inhibit these enzymes. Therefore, the objective of this project was to determine the ability of phenolic rich extracts obtained from pinto beans (BaJa) to inhibit alpha-amylase and alpha-glucosidase. The hypothesis was that pinto beans would be able to inhibit these enzymes due to the presence of high levels of chemically diverse phenols. Response …

Studies Of Debaryomyces Hansenii Killer Toxin And Its Effect On Pathogenic Bloodstream Candida Isolates, Rhaisa A. Crespo Ramírez

Department of Food Science and Technology: Dissertations, Theses, and Student Research

Candida species are normal commensal organisms found in the skin, mouth, and gastrointestinal and genitourinary tracts of humans. Candida albicans is a normal component of the gut flora, and the oral and genital cavities. However, this organism is an opportunistic pathogen and it is one of the most frequently isolated species from patients with nosocomial fungal infections. Candida infections have grown in recent years due to antimycotics resistance and the extensive use of antibiotics. This has pushed scientists to look for alternative therapeutic agents to treat fungal infections.

Yeasts can produce toxic proteins called “mycocins” or “killer toxins” that can …

Relationships Between Parental Energy Balance-Related Behaviors And Their Child’S Weight Status And Performance On Fitnessgram® In-School Assessment, Kathryn M. Painter

Department of Nutrition and Health Sciences: Dissertations, Theses, and Student Research

BACKGROUND

In general, children learn habits by observing the behavior of family members, especially their parents. This study investigates the impact parental modeling of moderate-to-vigorous physical activity (MVPA) and sedentary behavior (SB) has on their child’s risk of obesity and physical fitness (PF). It was hypothesized that children whose parents were more physically active and less sedentary would perform to a higher standard on their in-school PF assessment and would also have a lower risk of obesity.

OBJECTIVES

To develop successful childhood obesity interventions, more research is needed to clearly understand the impact of parents’ MVPA and SB on the …

Micronutrient Foliar Analysis And Supplementation In Nutrient Management For High Yield Maize (Zea Mays L.), Zachary P. Stewart

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Micronutrient supplementation in maize production is of growing interest to producers and agronomists as means to further increase yield as other crop needs are increasingly met. Plant tissue and soil sampling for micronutrient concentrations have been used to determine likely responses to micronutrient supplementation. Nebraska soils are generally micronutrient sufficient and usually do not have soil or plant tissue micronutrient concentrations below critical levels, however, during precise periods where specific micronutrients are in greatest need due to physiological demands, there may be opportunity for micronutrient supplementation to increase grain yield. The compiled chapters indicate that in most scenarios in Nebraska, …

Role Of Acetyl-Coa Synthetase 2 And Acetyl-Coa Precursors, Acetate And Ethanol, On Hepatocyte Gene Expression, Noel Bruner, Anjeza Erickson, Mengna Xia, Bo He, Regis Moreau

UCARE: Research Products

Abnormally high blood and tissue lipid levels observed in metabolic disorders and cardiovascular diseases are associated with extensive gene expression changes. Gene expression is modulated by epigenetic mechanisms, which include modifications of DNA-bound protein histones without alteration of DNA sequence. Histone hyperacetylation is observed in the setting of metabolic disorders but the causes have not been described in any detail. We know that histone acetylation is positively correlated with the abundance of acetyl-coenzyme A. This study tests the hypothesis that acetyl-coenzyme A metabolizing enzyme acetyl-coenzyme A synthetase 2 (ACSS2, cytoplasmic, aka AceCS1) impacts liver function through histone acetylation, and that …

Effects Of Nutrition On Female Leopard Geckos, Lisa Keys, Dennis M. Ferraro

UCARE: Research Products

Nutrition has a dramatic effect on animal’s bodies and behaviors as they go through their lives. Looking at the effects of nutrition on captive animals is crucial to providing future animals with better lives. Since captive animals don’t get the variety of food items that they would get in the wild, supplementation is often used to meet the minimum dietary requirements. Looking at how supplementation affects female leopard geckos at breeding size, there were both positive and negative correlations with different supplementations used. After taking body measurements on females over several months on one kind of additional supplement, the control …

Utilizing Pinterest To Promote The Learning Child Curriculum, Alexis Noeldner, Dipti A. Dev, Emma Thomas

UCARE: Research Products

•Research initiatives and strategies to expand engagement on Pinterest and to increase following on The Learning Child Pinterest account. •Produce and develop authentic content to post on Pinterest channels, including quality image, descriptions, and titles. •Receive feedback to improve and revise the developed curriculum on Pinterest

The Impact Of Depleting Dietary Microrna In A High-Fat Diet, Briley Moates, Sonia Manca, Janos Zempleni

UCARE: Research Products

We tested the hypothesis that a highfat diet would increase the difference in body weight between C57BL/6J mice provided dietary microRNA (Exo +) and mice which were fed the same diet depleted of microRNA (Exo-).

• The data demonstrate that depleting miRNAs from a high-fat diet does not impact the difference in body weight between Exo+ and Exo- subjects. • Depleting dietary miRNAs from normal low-fat diets do result in differences in body weight, fat, fecundity, purine metabolism, and gut microbiome.

The Relationship Between Physical Activity And Diet And Young Children's Cognitive Development: A Systematic Review, Pooja S. Tandon, Alison Tovar, Avanthi T. Jayasuriya, Emily Welker, Daniel J. Schober, Kristen Copeland, Dipti A. Dev, Ashleigh L. Murriel, Dima Amso, Dianne S. Ward

Department of Child, Youth, and Family Studies: Faculty Publications

Objective. Given the high prevalence of suboptimal nutrition and low activity levels in children, we systematically reviewed the literature on the relationship between physical activity and dietary patterns and cognitive development in early childhood (six months to five years).

Methods. In February 2016, we conducted two different searches of MEDLINE, PsycINFO, and ERIC. Each search included either physical activity (including gross motor skills) or diet terms, and neurocognitive development outcome terms. Included studies were in English, published since 2005, and of any study design in which the physical activity or diet measure occurred prior to age five.

Results. For physical …

A Relationship With Urban Farming, Tracey Adams

Department of Environmental Studies: Undergraduate Student Theses

As the world’s population grows and cities expand into mega cities, so does poverty and the need for better food security. Barthel and Isendhal “define food security broadly as the situation when people have physical and economic access to sufficient, safe, and nutritious food to meet their dietary needs." (2013) Along with this growth, urban farming is gaining more and more interest. The drive behind the interest is a desire to know where food comes from as well as, a way to rekindle a relationship with our history, the land, and our health. “A consumer base is building for local …

Current And Past Menstrual Status Is An Important Determinant Of Femoral Neck Geometry In Exercising Women, Rebecca J. Mallinson, Nancy I. Williams, Jenna C. Gibbs, Karsten Koehler, Heather C.M. Allaway, Emily Southmayd, M. J. De Souza

Department of Nutrition and Health Sciences: Faculty Publications

Menstrual status, both past and current, has been established as an important determinant of bone mineral density (BMD) in young exercising women. However, little is known regarding the association between the cumulative effect of menstrual status and indices of bone health beyond BMD, such as bone geometry and estimated bone strength.

Purpose: This study explores the association between cumulative menstrual status and indices of bone health assessed using dualenergy x-ray absorptiometry (DXA), including femoral neck geometry and strength and areal BMD (aBMD), in exercising women.

Methods: 101 exercising women (22.0 ± 0.4 years, BMI 21.0 ± 0.2 kg/m2, 520±40 min/week …

Intrauterine Growth-Restricted Sheep Fetuses Exhibit Smaller Hindlimb Muscle Fibers And Lower Proportions Of Insulin-Sensitive Type I Fibers Near Term, Dustin T. Yates, Caitlin N. Cadaret, Kristin A. Beede, Hannah E. Riley, Antoni R. Macko, Miranda J. Anderson, Leticia E. Camacho, Sean W. Limesand

Department of Animal Science: Faculty Publications

Intrauterine growthrestricted sheep fetuses exhibit smaller hindlimb muscle fibers and lower proportions of insulin-sensitive Type I fibers near term. Am J Physiol Regul Integr Comp Physiol 310: R1020–R1029, 2016. First published April 6, 2016; doi:10.1152/ajpregu.00528.2015.—Intrauterine growth restriction (IUGR) reduces muscle mass and insulin sensitivity in offspring. Insulin sensitivity varies among muscle fiber types, with Type I fibers being most sensitive. Differences in fibertype ratios are associated with insulin resistance in adults, and thus we hypothesized that near-term IUGR sheep fetuses exhibit reduced size and proportions of Type I fibers. Placental insufficiency-induced IUGR fetuses were 54% smaller (P < 0.05) than controls and exhibited hypoxemia and hypoglycemia, which contributed to 6.9- fold greater (P < 0.05) plasma norepinephrine and 53% lower (P < 0.05) plasma insulin concentrations. IUGR semitendinosus muscles contained less (P < 0.05) myosin heavy chain-I protein (MyHC-I) and proportionally fewer (P < 0.05) Type I and Type I/IIa fibers than controls, but MyHC-II protein concentrations, Type II fibers, and Type IIx fibers were not different. IUGR biceps femoris muscles exhibited similar albeit less dramatic differences in fiber type proportions. Type I and IIa fibers are more responsive to adrenergic and insulin regulation than Type IIx and may be more profoundly impaired by the high catecholamines and low insulin in our IUGR fetuses, leading to their proportional reduction. In both muscles, fibers of each type were uniformly smaller (P < 0.05) in IUGR fetuses than controls, which indicates that fiber hypertrophy is not dependent on type but rather on other factors such as myoblast differentiation or protein synthesis. Together, our findings show that IUGR fetal muscles develop smaller fibers and have proportionally fewer Type I fibers, which is indicative of developmental adaptations that may help explain the link between IUGR and adulthood insulin resistance

Turnaround Elementary Principals In Rural Missouri, Julie C. Delaney

Department of Educational Administration: Dissertations, Theses, and Student Research

Rural high poverty schools can often be invisible to those not living in rural areas. The number of students in rural areas is not far below the number of urban students, yet there has been little attention or research about rural school student achievement (Arnold et al., 2006; Pitchford 2011; Richard, 2005). The state of Missouri has established a program entitled Top Ten By Twenty. This initiative has been an impetus for change in rural high poverty schools. The program has led to increased student achievement in more than 60 rural high poverty schools. In this study, these schools were …

Low-Intensity, Stocker-Based Channel Catfish Culture, Bartholomew W. Green, Carole R. Engle, Rebecca Lochmann, Harold Phillips

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Low-intensity production of Channel Catfish Ictalurus punctatus is characterized by low stocking rates, low installed aeration capacity, and no automated dissolved oxygen monitoring. Two studies conducted in nine 0.25-acre ponds quantified production characteristics of stocker Channel Catfish stocked for low-intensity food-fish production in single- or multiple-batch culture. In the multiple-batch study, 0.5-lb stockers (carryover fish) were stocked at 4,500 fish/acre and 0.044-lb fingerlings at 6,000 fish/acre. Stockers were grown to mean individual weights of 1.25, 1.75, or 2.25 lb. In the single-batch study, 0.5-lb stockers were stocked at 3,500, 4,500, and 5,500 fish/acre. All fish were fed a feed containing …

Hexapod Herald - Vol. 28, No. 1, March 2016

Hexapod Herald and Other Entomology Department Newsletters

Content: Welcome - Congratulations - Publications - Strategic Pest Control Theme Runs Strong at UPM Conference - Grants - Faculty News - Meet an Off-Campus Student - Travel - Student News - Students Swarm to UNL Entomologist for Class Project - Bruner Club's International Dinner

Most Frequently Downloaded Items In February 2016, Unl Digital Commons, Paul Royster

Institutional Repository Information

Taking advantage of a 29th day this leap year, the UNL Digital Commons supplied 580,677 downloads for the month. The 250 most frequently downloaded are listed below.

Overall, the repository supplied 123,646 downloads of those 250 items, plus another 457,031 downloads of 46,975 other items not among the top 250. There were 23,017 items that were not downloaded during the month. This represents an average of 8.3 downloads per available item; and 67.5% of available items were downloaded at least once.

February's total was an increase of 15.9% over February 2015 and a 26.2% increase over February 2014 (helped in …

Proceedings Of The 43rd Annual Meeting, Southern Soybean Disease Workers (March 9-10, 2016, Pensacola Beach, Florida), Trey Price, Tom Allen, Travis Faske, Eduardo Chagas Da Silva

Southern Soybean Disease Workers: Conference Proceedings

Contents

Schedule

Southern United States Soybean Disease Loss Estimates for 2015. TW Allen, CA Bradley, JP Damicone, NS Dufault, TR Faske, CA Hollier, T Isakeit, RC Kemerait, NM Kleczewski, SR Koenning, HL Mehl, JD Mueller, C Overstreet, PP Price, EJ Sikora, TN Spurlock, and H Young

Soilborne Disease Symposium (Tom Allen, moderator)

Integrated management of sudden death syndrome. D Mueller, L Leandro, Y Kandel, C Bradley, M Chilvers, A Tenuta, and K Wise

Field screening for stem canker: an outdated exercise or a necessary service for soybean growers? K Rowe and T Kirkpatrick

Nematode associated diseases in soybean. C Overstreet, …