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Advancing Heart, Lung, Blood, And Sleep Research (January 2020)

United States Natonal Institutes of Health: Materials

Advancing Heart, Lung, Blood, and Sleep Research is a brochure that highlights major NHLBI programs, partnership activities, as well as recent advances in science.

The Arts Of Urgency: Textile Practices And Truth-Telling, Catherine Dormor

Textile Society of America: Symposium Proceedings

To think of the arts of urgency is to think about tactics for making public realities and ‘truths’. It is to ask how art and artists can express horror, suffering, collective and individual trauma with intelligence, rigour, truthfulness, integrity and ethics? In this paper I explore the role of textile as a set of practices deployed as acts of resistance, focusing on the work of Chinese artist Lin Tianmiao and the US artist collective behind the Pussyhat Project (Jayna Zweimann, Krista Suh and Kat Doyle). Both deploy a tactics of spatiality and collaborative action to produce discourse around female disempowerment …

Ashfall Fossil Beds: From Waterhole To Rhino Barn, Sandy Mosel

University of Nebraska State Museum: Programs Information

Twelve million years ago a volcanic super-eruption in what is now southwestern Idaho created an enormous ashfall that blanketed the Great Plains with several inches of volcanic ash, devastating the local wildlife. Evidence of this geologic event lies within the hills of the Niobrara River Valley in northeast Nebraska, at a place aptly named the Ashfall Fossil Beds State Historical Park. Located near the tiny village of Royal, the Ashfall Park has been developed around a waterhole where animals succumbed after breathing in the volcanic dust. Buried deeply by windblown volcanic ash in the weeks following the eruption, the skeletons …

Low- And High-Drag Intermittencies In Turbulent Channel Flows, Rishav Agrawal, Henry C.-H. Ng, Ethan A. Davis, Jae Sung Park, Michael D. Graham, David J.C. Dennis, Robert J. Poole

Department of Mechanical and Materials Engineering: Faculty Publications

Recent direct numerical simulations (DNS) and experiments in turbulent channel flow have found intermittent low- and high-drag events in Newtonian fluid flows, at Reτ = uτh/ν between 70 and 100, where uτ, h and ν are the friction velocity, channel half-height and kinematic viscosity, respectively. These intervals of low-drag and high-drag have been termed “hibernating” and “hyperactive”, respectively, and in this paper, a further investigation of these intermittent events is conducted using experimental and numerical techniques. For experiments, simultaneous measurements of wall shear stress and velocity are carried out in a channel flow facility using hot-film anemometry (HFA) and laser …

Does Masting Scale With Plant Size? High Reproductive Variability And Low Synchrony In Small And Unproductive Individuals, Michał Bogdziewicz, Jakub Szymkowiak, Rafael Calama, Elizabeth E. Crone, Josep M. Espelta, Peter Lesica, Shealyn Marino, Michael A. Steele, Brigitte Tenhumberg, Andrew Tyre, Magdalena Żywiec, Dave Kelly

Brigitte Tenhumberg Papers

Background and Aims In a range of plant species, the distribution of individual mean fecundity is skewed and dominated by a few highly fecund individuals. Larger plants produce greater seed crops, but the exact nature of the relationship between size and reproductive patterns is poorly understood. This is especially clear in plants that reproduce by exhibiting synchronized quasi-periodic variation in fruit production, a process called masting.

Methods We investigated covariation of plant size and fecundity with individual-plant-level masting patterns and seed predation in 12 mast-seeding species: Pinus pinea, Astragalus scaphoides, Sorbus aucuparia, Quercus ilex, Q. humilis …

High‐ And Low‐Molecular‐Weight Chitosan Act As Adjuvants During Single‐Dose Influenza A Virus Protein Vaccination Through Distinct Mechanisms, Anna T. Lampe, Eric Farris, Deborah M. Brown, Angela K. Pannier

Department of Agricultural and Biological Systems Engineering: Faculty Publications

The investigation of new adjuvants is essential for the development of efficacious vaccines. Chitosan (CS), a derivative of chitin, has been shown to act as an adjuvant, improving vaccine‐induced immune responses. However, the effect of CS molecular weight (MW) on this adjuvanticity has not been investigated, despite MW having been shown to impact CS biological properties. Here, two MW variants of CS were in- vestigated for their ability to enhance vaccine‐elicited immune responses in vitro and in vivo, using a single‐dose influenza A virus (IAV) protein vaccine model. Both low‐ molecular‐weight (LMW) and high‐molecular‐weight (HMW) CS‐induced interferon regulatory factor pathway …

Genome-Wide Association Study To Identify Genetic Loci Associated With Gastrointestinal Nematode Resistance In Katahdin Sheep, G. M. Becker, K. M. Davenport, Joan M. Burke, Ronald M. Lewis, J. E. Miller, J. L.M. Morgan, D. R. Notter, B. M. Murdoch

Department of Animal Science: Faculty Publications

Resistance to gastrointestinal nematodes has previously been shown to be a moderately heritable trait in some breeds of sheep, but the mechanisms of resistance are not well understood. Selection for resistance currently relies upon faecal egg counts (FEC), blood packed cell volumes and FAMACHA visual indicator scores of anaemia. Identifying genomic markers associated with disease resistance would potentially improve the selection process and provide a more reliable means of classifying and understanding the biology behind resistant and susceptible sheep. A GWAS was conducted to identify possible genetic loci associated with resistance to Haemonchus contortus in Katahdin sheep. Forty animals were …

Genetic Structure And Admixture In Sheep From Terminal Breeds In The United States, Kimberly M. Davenport, C. Heimke, S. D. Mc Kay, J. W. Thorne, Ronald M. Lewis, Todd Taylor, B. M. Murdoch

Department of Animal Science: Faculty Publications

Selection for performance in diverse production settings has resulted in variation across sheep breeds worldwide. Although sheep are an important species to the United States, the current genetic relationship among many terminal sire breeds is not well characterized. Suffolk, Hampshire, Shropshire and Oxford (terminal) and Rambouillet (dual purpose) sheep (n = 248) sampled from different flocks were genotyped using the Applied Biosystems Axiom Ovine Genotyping Array (50K), and additional Shropshire sheep (n = 26) using the Illumina Ovine SNP50 BeadChip. Relationships were investigated by calculating observed heterozygosity, inbreeding coefficients, eigenvalues, pairwise Wright’s FST estimates and an identity by state matrix. …

A Model Of Icewedge Polygon Drainage In Changing Arctic Terrain, Vitaly Zlotnik, Dylan R. Harp, Elchin E. Jafarov, Charles J. Abolt

Department of Earth and Atmospheric Sciences: Faculty Publications

As ice wedge degradation and the inundation of polygonal troughs become increasingly common processes across the Arctic, lateral export of water from polygonal soils may represent an important mechanism for the mobilization of dissolved organic carbon and other solutes. However, drainage from ice wedge polygons is poorly understood. We constructed a model which uses cross-sectional flow nets to define flow paths of meltwater through the active layer of an inundated low-centered polygon towards the trough. The model includes the eects of evaporation and simulates the depletion of ponded water in the polygon center during the thaw season. In most simulations, …

Single-Arm, Non-Randomized, Time Series, Single-Subject Study Of Fecal Microbiota Transplantation In Multiple Sclerosis, Phillip A. Engen, Antonia Zaferiou, Heather Rasmussen, Ankur Ankub, Stefan J. Green, Louis F. Fogg, Christopher B. Forsyth, Shohreh Raeisi, Bruce Hamaker, Ali Keshavarzian

Department of Nutrition and Health Sciences: Faculty Publications

Emerging evidence suggests intestinal microbiota as a central contributing factor to the pathogenesis of Relapsing-Remitting-Multiple-Sclerosis (RRMS). This novel RRMS study evaluated the impact of fecal-microbiota-transplantation (FMT) on a broad array of physiological/clinical outcomes using deep metagenome sequencing of fecal microbiome. FMT interventions were associated with increased abundances of putative beneficial stool bacteria and short-chain-fatty-acid metabolites, which were associated with increased/improved serum brain-derived-neurotrophic-factor levels and gait/walking metrics. This proof-of-concept single-subject longitudinal study provides evidence of potential importance of intestinal microbiota in the pathogenesis of MS, and scientific rationale to help design future randomized controlled trials assessing FMT in RRMS patients.

Aphid-Responsive Defense Networks In Hybrid Switchgrass, Kyle Koch, Nathan A. Palmer, Teresa Donze-Reiner, Erin D. Scully, Javier Seravalli, Keenan Amundsen, Paul Twigg, Joe Louis, Jeffery D. Bradshaw, Tiffany Heng-Moss, Gautam Sarath

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

Aphid herbivory elicits plant defense-related networks that are influenced by host genetics. Plants of the upland switchgrass (Panicum virgatum) cultivar Summer can be a suitable host for greenbug aphids (Schizaphis graminum; GB), and yellow sugarcane aphids (Sipha flava, YSA), whereas the lowland cultivar Kanlow exhibited multi-species resistance that curtails aphid reproduction. However, stabilized hybrids of Summer (♀) x Kanlow (♂) (SxK) with improved agronomics can be damaged by both aphids. Here, hormone and metabolite analyses, coupled with RNA-Seq analysis of plant transcriptomes, were utilized to delineate defense networks induced by aphid feeding in SxK switchgrass and pinpoint plant transcription factors …

Genome-Wide Transcriptome And Physiological Analyses Provide New Insights Into Peanut Drought Response Mechanisms, Sailaja Bhogireddy, Abishek Xavier, International Crops Research Institute For The Semi-Arid Tropics (Icrisat), Hyderabad, India, Nancy Layland, Renee Arias, Paxton Payton, Spurthi N. Nayak, Manish K. Pandey, Naveen Puppala, Rajeev K. Varshney

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

Drought is one of the main constraints in peanut production in West Texas and eastern New Mexico regions due to the depletion of groundwater. A multi-seasonal phenotypic analysis of 10 peanut genotypes revealed C76-16 (C-76) and Valencia-C (Val-C) as the best and poor performers under deficit irrigation (DI) in West Texas, respectively. In order to decipher transcriptome changes under DI, RNAseq was performed in C-76 and Val-C. Approximately 369 million raw reads were generated from 12 different libraries of two genotypes subjected to fully irrigated (FI) and DI conditions, of which ~329 million (90.2%) filtered reads were mapped to the …

Note: First Records Of Alcathoe Carolinensis Engelhardt And Synanthedon Alleri (Engelhardt) In South Carolina, U.S.A., Juang Horng Chong, James D. Young

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

Clearwing moths (Lepidoptera: Sesiidae) are day-flying hornet and wasp mimics that can be found visiting flowers for nectar. Larvae bore in the roots, branches and trunks of woody and some herbaceous plants. Some of these larvae are pests in orchards, nurseries and commercial forestry operations. For example, Synanthedon exitiosa (Say) and Synanthedon pictipes (Grote & Robinson) are major pests of peach [Prunus persica (L.) Batsch; Rosaceae] (Johnson et al. 2005), and Synanthedon scitula (Harris) is a major pest of apple (Malus domestica Borkh.; Rosaceae) (Bergh & Leskey 2003). These species, and Podosesia syringae (Harris), Podosesia aureocincta Purrington & …

Analysis Of Small Rna Populations Generated In Peanut Leaves After Exogenous Application Of Dsrna And Dsdna Targeting Aflatoxin Synthesis Genes, Imana L. Power, P. C. Faustinelli, Valerie Orner, Victor S. Sobolev, Renee S. Aria

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

Previously, we have shown that RNA interference (RNAi) can prevent aflatoxin accumulation in transformed peanuts. To explore aflatoxin control by exogenous delivery of double-strand RNA (dsRNA) it is necessary to understand the generation of small RNA (sRNA) populations. We sequenced 12 duplicate sRNA libraries of in-vitro-grown peanut plants, 24 and 48 h after exogenous application of five gene fragments (RNAi-5x) related to aflatoxin biosynthesis in Aspergillus flavus. RNAi-5x was applied either as double-stranded RNA (dsRNA) or RNAi plasmid DNA (dsDNA). Small interfering RNAs (siRNAs) derived from RNAi-5x were significantly more abundant at 48 h than at 24 h, and the …

Genetic Diversity Of Puccinia Kuehnii, The Causal Agent Of Orange Rust Of Sugarcane, From Brazil, Alfredo Seiiti Urashima, Tatiane De Mistura, Lis Natali Rodrigues Porto, Paige Dariel Austin, Renee Silvia Arias

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

The use of resistant genotypes is the preferred method to control orange rust of sug- arcane (Saccharum spp) caused by Puccinia kuehnii. This approach has been adopted in Brazil but outbreaks of the disease on previously resistant varieties showed that the efficacy of this method is limited and requires a better understanding of pathogen diversity. Nevertheless, adequate molecular markers for examining pathogen diversity at population level are not available, which limits the success of orange rust control by genetic resistance. Therefore, two independent investigations were conducted to examine genetic diversity of P. kuehnii from São Paulo state, the most important …

Influence Of The Sources Of Science Teaching Self-Efficacy In Preservice Elementary Teachers’ Identity Development, Deepika Menon

Department of Teaching, Learning, and Teacher Education: Faculty Publications

The purpose of this mixed-methods research was to investigate changes in preservice elementary teachers’ science teacher identities and self-efficacy beliefs as they participate in a field-based science methods course. A total of 121 preservice teachers participated, four of which were purposefully selected who held varied initial levels of science content preparedness and confidence to teach. Data sources included pre- and post-course administrations of the Science Teaching Efficacy Belief Instrument-B, an open-ended questionnaire, two semi-structured interviews with selected participants, written teaching reflections, classroom observations, and artifacts. Data analyses included a pre-post repeated measures analysis of variance (ANOVA) design, and the case …

Effects Of Relative Humidity On Meat Quality In Dry Aged Beef, Felipe A. Ribeiro, Soon K. Lau, Morgan L. Henriott, Nicolas J. Herrera, Nicolas A. Bland, Jeyamkondan Subbiah, Chris Calkins

Nebraska Beef Cattle Reports

During dry- aging, water is transferred from the interior to the meat surface and is subsequently evaporated to the surrounding environment. Th ere is a common belief in the meat industry that rapid drying creates a hard crust on the meat surface, which would act as a protective barrier against moisture loss, holding moisture on the inside of the product. Th is phenomenon is called case hardening. If this hypothesis is correct, drying at low relative humidity would be recommended in order to get case hardening and avoid excessive yield loss. Th is study was conducted to evaluate the effects …

Effect Of Urea And Distillers Inclusion In Dry- Rolled Corn Based Diets On Heifer Performance And Carcass Characteristics, Bradley M. Boyd, Kristin E. Hales, Andrew P. Foote, Galen E. Erickson

Nebraska Beef Cattle Reports

Crossbred heifers (n=96, BW = 810 ± 20) were utilized to evaluate the effects of increasing wet distillers grains plus solubles and urea inclusion in a dry rolled corn based finishing diet on performance and carcass characteristics. Heifers were individually fed using a calan gate system with a 2 × 2 factorial arrangement of treatments. Factors included distillers inclusion at either 10 or 20% of diet DM and urea inclusion at either 0.2 or 1.4% of diet DM. Th ere was no difference for final body weight, average daily gain, and feed conversion on a live or carcass adjusted basis …

One Hand Washes The Other: Designing Mutually Beneficial Honors Contracts, Antonina Bambina

National Collegiate Honors Council Monographs: Chapters

At their best, honors contracts can be creative, challenging, exceptional learning opportunities for students and faculty. At their worst, they promote busywork that fails to deliver enhanced educational experiences. While I am proud of the many contracts that allowed honors students at my former institution, the University of Southern Indiana, to collaborate on customized learning and deeper relationships with course material and faculty, I also found myself on occasion having to apologize to students or faculty for the stunted, lackluster projects that one party or the other proposed. These conflicting sentiments illustrate why Richard Badenhausen urges the honors community to …

An Undeserved Reputation: How Contract Courses Can Work For A Small Honors Program, Jon Hageman

National Collegiate Honors Council Monographs: Chapters

In the first chapter of this volume, Richard Badenhausen argues that contract courses have often suffered from ambiguous or homogenous expectations, compromising honors pedagogy and learning. Anecdotally, not many positive attributes have been ascribed to contract courses in the honors community. Contracts often require more work than courses to establish and administer to completion. Given the shortcomings and the amount of work required to implement contract courses successfully, why are they used at all? I argue that, in some cases, contract courses—or non-honors courses that move beyond regular course requirements with agreed-upon independent study work mentored by the professor—are the …

Honors Contracts: A Scaffolding To Independent Inquiry, Cindy S. Ticknor, Shamim Khan

National Collegiate Honors Council Monographs: Chapters

Honors contracts can be valuable curricular assets if aligned with institutional goals and properly supported to overcome the challenges they sometimes present. At Columbus State University (CSU), honors contracts allow students to achieve one of our primary learning outcomes: honors graduates will demonstrate the ability to design independent inquiry projects that require critical and creative thinking. We believe graduate schools value this ability, and we know that employers in our community seek honors graduates who can work independently on extended projects, communicate effectively, and solve problems analytically and creatively. We achieve this important learning outcome by requiring a senior project …

Facilitating Feedback: The Benefits Of Automation In Monitoring Completion Of Honors Contracts, Erin E. Edgington

National Collegiate Honors Council Monographs: Chapters

As we have seen in this volume so far, contract courses are an increasingly valuable pedagogical strategy for maintaining access to and demand for honors education. Administered with the “[i]ntentionality, transparency, [and] consistency” that Richard Badenhausen proposes in his opening essay (17), they can even, as Margaret Walsh suggests, help “shift [students’] focus from getting out of course requirements to getting into new and different courses to advance their capacity to learn” (40). While good reasons to offer contracts clearly exist, administering them nevertheless presents challenges. This essay considers process and pedagogy, with the aim of empowering both students and …

Predicting Escherichia Coli Loads In Cascading Dams With Machine Learning: An Integration Of Hydrometeorology, Animal Density And Grazing Pattern, Olufemi P. Abimbola, Aaron R. Mittelstet, Tiffany Messer, Elaine D. Berry, Shannon L. Bartelt-Hunt, Samuel Hansen

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Accurate prediction of Escherichia coli contamination in surface waters is challenging due to considerable uncertainty in the physical, chemical and biological variables that control E. coli occurrence and sources in surface waters. This study proposes a novel approach by integrating hydro-climatic variables as well as animal density and grazing pattern in the feature selection modeling phase to increase E. coli prediction accuracy for two cascading dams at the US Meat Animal Research Center (USMARC), Nebraska. Predictive models were developed using regression techniques and an artificial neural network (ANN). Two adaptive neuro-fuzzy inference system (ANFIS) structures including subtractive clustering and fuzzy …

Using Visual And Digital Imagery To Quantify Horn Fly (Diptera: Muscidae) Densities, Brandon Smythe, David J. Boxler, Gary Brewer, Eric T. Psota, D. Wes Watson

Department of Entomology: Faculty Publications

The horn fly, Haematobia irritans L. (Diptera: Muscidae), is a persistent pest of cattle globally. A threshold of 200 flies per animal is considered the standard management goal; however, determining when that threshold has been exceeded is difficult using visual estimates that tend to overestimate the actual fly densities and are, at best, subjective. As a result, a more reliable and durable method of determining horn fly densities is needed. Here, we describe the methods commonly used to quantify horn fly densities including visual estimates and digital photography, and provide examples of quantification software and the prospect for computer automation …

Music In The Holocaust As An Honors Colloquium, Galit Gertsenzon

Honors in Practice Online Archive

Forbidden Sounds: The Music of the Holocaust considers the historical events of the Holocaust in the context of music. The honors course explores diverse roles that music played during the years 1933–1945, including the Nazi use of music as a means for censorship and discrimination; music performance and creation in various Jewish ghettos and concentration camps in Europe; and ways that composers, performers, and audiences used music for emotional and physical survival and for spiritual resistance during World War II and after. The author provides a rich and varied curriculum, culminating with student performances and a series of public concerts, …

Engaging And Contributing Professionally In A Global Sustainability Honors Course, Jeffrey Lamp, John Korstad

Honors in Practice Online Archive

Science and Global Sustainability provides honors students with opportunities to engage with field professionals working toward sustainability and to participate in the production of various academic publications across disciplines. Interconnected concerns of social, environmental, and economic factors are considered when assessing the sustainability of any plan of action in the world. Opportunities for mentorship in multiple professional contexts are discussed.

Humanities-Driven Stem— Using History As A Foundation For Stem Education In Honors, John Carrell, Hannah Keaty, Aliza Wong

Honors in Practice Online Archive

Humanities have traditionally played a limited role in STEM education, yet their natural connections may be used to enrich academic understanding and student experience. Authors explore their mutuality by presenting an interdisciplinary curriculum, Humanities-Driven STEM (HDSTEM). Unlike other iterations of blended disciplines, HDSTEM provides students with abilities and knowledge to go beyond the acquisition of soft skills toward humanistic, often artistic, creative problem-solving and innovative thinking. A pilot HDSTEM course offered through the first-year experience program is described. Authors outline its development, implementation, outcomes, and evaluation, positing humanities at the forefront as the impetus and lens for contextualizing STEM research …

Honors In Practice, Volume 16 (Complete)

Honors in Practice Online Archive

2019 PRESIDENTIAL ADDRESS-- Radical Honors: Pedagogical Troublemaking as a Model for Institutional Change Richard Badenhausen

ESSAYS-- Music in the Holocaust as an Honors Colloquium Galit Gertsenzon

Brave New Worlds: Transcending the Humanities/STEM Divide through Creative Writing Adam Watkins and Zahra Tehrani

Humanities-Driven STEM—Using History as a Foundation for STEM Education in Honors John Carrell, Hannah Keaty, and Aliza Wong

Best Practices in Honors Pedagogy: Teaching Innovation and Community Engagement through Design Thinking Beth H. Chaney, Tim W. Christensen, Alleah Crawford, Katherine Ford, W. Wayne Godwin, Gerald Weckesser, Todd Fraley, and Phoenix Little

Teaching Critical University Studies: A First-Year Seminar to …

Honors In Practice, Volume 16, Editorial Matter

Honors in Practice Online Archive

indexing statement

editorial board

contents

Editorial Policy, Deadline, and Submission Guidelines

Dedication to Steven T. Engel

Editor’s Introduction -- Ada Long

About the Authors

NCHC Publication Descriptions and Order Form

Sheep & Goat Research Journal, Volume 35, 2020

Sheep and Goat Research Journal

Sheep & Goat Research Journal, Volume 35, 2020