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Changes In Corn Residue Quality Throughout The Grazing Period And Effect Of Supplementation Of Calves Grazing Corn Residue, Amanda J. Burken

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

Corn residue is an abundant feed source in Nebraska that can be utilized as an alternative winter feed. Calves were backgrounded on corn residue in order to determine gain and estimate forage intake when supplemented with distillers grains (DGS). Calves grazing the non-irrigated field gained more (1.03 kg/calf daily) when compared to those grazing the irrigated field (0.90 kg/calf daily; P < 0.01). In year 1, a quadratic effect for intake of DGS was present (P < 0.01) while year 2 observed a linear effect for increasing level of DGS (P < 0.01). The nutritional quality of corn residue was evaluated over time in order to determine changes in blade/sheath, cob, husk/shank and stem. Minimal changes in DM of the forage components occurred was grain reached 15.5% moisture. Digestibility of the blade/sheath declined linearly over time (P < 0.01) while the husk remained constant (P = 0.40). Cob digestibility decreased quadratically (P < 0.01) throughout the sampling period with few changes once grain reached 15.5% moisture. Differences observed in the digestibility of the blade/sheath were attributed to the effects of weathering. A third set of trials was conducted to evaluate the effects of by-product supplementation of calves grazing irrigated corn residue and supplemented with DGS or continuous access to lick tubs. The DGS treatment gained more (0.62 kg/calf daily) than the lick tub treatment (0.38 kg/calf daily; P < 0.01). Calves offered DGS consumed more supplement as a percentage of BW (0.52%) when compared with calves offered lick tubs (0.36%; P < 0.01) on a DM basis. Calves supplemented with DGS had a higher supplement efficiency (46.3% to 42.9%, DM basis) although no differences were present between treatments (P = 0.49). When analyzed on an OM basis, however, calves offered lick tubs had a numerically higher supplement efficiency (50.4%) in comparison to calves …

Feedlot Manure Management Considerations Including Anaerobic Digestion Potential And Mineral Retention, Andrea K. Watson

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

Three anaerobic digestion trials were conducted to evaluate methane production from feedlot manure. As organic matter content of manure decreased, degradation of manure and methane production also linearly decreased (P ≤ 0.02). Quality, or organic matter content of manure, had a greater impact on anaerobic digestion than diet (with and without distillers grains) fed to cattle. Minerals are concentrated in effluent removed from anaerobic digesters.

Knowing mineral retention within cattle allows for more accurate calculation of mineral excretion in manure. Three serial slaughter trials measured mineral retention in growing and finishing cattle. During a growing phase, beef cattle gaining …

Suppression Of Invasion And Metastasis Of Triple-Negative Breast Cancer Lines By Pharmacological Or Genetic Inhibition Of Slug Activity., Giovanna Ferrari-Amorotti, Claudia Chiodoni, Fei Shen, Sara Cattelani, Angela Rachele Soliera, Gloria Manzotti, Giulia Grisendi, Massimo Dominici, Francesco Rivasi, Mario Paolo Colombo, Alessandro Fatatis, Bruno Calabretta

Department of Cancer Biology Faculty Papers

Most triple-negative breast cancers (TNBCs) exhibit gene expression patterns associated with epithelial-to-mesenchymal transition (EMT), a feature that correlates with a propensity for metastatic spread. Overexpression of the EMT regulator Slug is detected in basal and mesenchymal-type TNBCs and is associated with reduced E-cadherin expression and aggressive disease. The effects of Slug depend, in part, on the interaction of its N-terminal SNAG repressor domain with the chromatin-modifying protein lysine demethylase 1 (LSD1); thus, we investigated whether tranylcypromine [also known as trans-2-phenylcyclopropylamine hydrochloride (PCPA) or Parnate], an inhibitor of LSD1 that blocks its interaction with Slug, suppresses the migration, invasion, and metastatic …

Forage News [2014-12], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Kentuckians at AFGC
• Forages at KCA
• Select Forage Varieties Wisely
• How Good is Your Hay?
• 35th Kentucky Alfalfa Conference
• Vegetative Identification of Small Grains
• 2014 UK Robinson Center Mountain Ag Week a Success
• Transgenic Reduced-Lignin Alfalfa Gains Deregulation

De La Reina-Madre De La Nación A La Tarasca: Para Un Análisis De Los Discursos De Juramentación Las Presidentas Electas Latinoamericanas, Yanira B. Paz

Hispanic Studies Faculty Publications

El propósito de este trabajo es estudiar desde la perspectiva del análisis crítico del discurso (ACD), los discursos de juramentación al cargo de las presidentas electas latinoamericanas. Se parte de la idea de que estos discursos constituyen la plataforma filosófica-política que, basada sobre las expectativas que llevaron al poder a estas líderes, constituirá el motor de acción del gobierno, así como también un criterio para valorar su implementación y efectividad. Desde la perspectiva de los estudios de género constituyen un proceso para la construcción de la identidad de la imagen de la líder.

This is a study from the perspective …

The Miscommunication Of Standardized Education, Eliott James Walker

Communication Studies

No abstract provided.

Listening To Shells And Discovering A Lost World; Epiphanic Experiences At The Museum, Catherine M.C. Closet-Crane

Proceedings from the Document Academy

This paper aims to entertain the possibilities for analysis, interpretation, and learning offered by evocative autoethnographic texts for LAM and LIS user studies. The focus in this paper is on storytelling as autoethnographic writing. To illustrate facets of a particular cultural experience and start a conversation about the transformative power of museum objects as documents, the story told in this paper recounts a series of events and experiences from the life of two visitors after their museum encounter with an engraved shell artifact from the archeological site of Spiro Mounds in Oklahoma.

Ospreys (Pandion Haliaetus) In The 21st Century: Populations, Migration, Management, And Research Priorities, Richard O. Bierregaard, Alan F. Poole, Brian E. Washburn

United States Department of Agriculture Wildlife Services: Staff Publications

Ospreys (Pandion haliaetus) are remarkable raptors. Their choice of conspicuous nest sites and surprising tolerance for nesting in nearly intimate association with humans render them an iconic piece of aquatic ecosystems in both marine and freshwater habitats across the northern hemisphere and much of Australasia (Australia to Indonesia). Wintering in Central and South America and Africa as well, they are among the few truly cosmopolitan birds of prey. Ecologically, they might be termed generalized specialists. They are, with exceptions so rare that they can safely be ignored, obligate fish eaters. From their talons to the tip of their …

Proposal For A Media Effects Study: What Preschoolers And Kindergartners Retain From Animated Children's Films With Intricate Storylines, Samantha Lynne Tanner

Communication Studies

No abstract provided.

Fall Field Report, August–November 2014, W. Ross Silcock

Nebraska Bird Review

My first paragraph from last year's fall report read as follows: "In most ways, this was a routine fall season. Most interesting from an ongoing point of view were quite a large number of sightings of passerines at rather late dates, notably among Empidonax flycatchers, wood warblers, native sparrows, tanagers, towhees, grosbeaks, and buntings." This fall was no different; the trend seems to be that final sighting dates for many species are pushing against their latest expected dates.

There were several tidbits of interest, more or less unrelated, but perhaps most notable takeaways for the season were the number of …

Holdrege Fall Field Days, Janis Paseka

Nebraska Bird Review

The 2014 NOU Fall Field Days took place in Holdrege at the Super 8 Motel on Sept. 19–21. There were about 35 in attendance at the meeting, which was organized by Dave Heidt and Betty Grenon.

On Friday evening Dave Heidt led a humor-filled discussion on bird songs and calls and ways to remember them, as audience members suggested their own mnemonic devices. On Saturday evening, T. J. Walker gave a presentation on the Nebraska Game and Parks' program of habitat rehabilitation to benefit Ring-necked Pheasants and other species. Field trip destinations on Saturday and on Sunday morning included Harlan …

Index To Volume 82

Nebraska Bird Review

Abegglen, Jeff 192
Abraham, K. F. 85
Aderman, T. 80
Addy, Darren 47
Adrian, Brad 47
Ahlschwede, Carla 40
Akers, Danny 100
Alberts: Byron 143; Deb 143
Alisaukis, R. T. 85
Allen: Edward 3, 48, 143, 153; Jan 48
Allison, Scott 49
American Ornithologists' Union 192

. . .

Wright, Rick 49
Wylie, Bruce 41

Yantachka, Jennifer 143
Yellowlegs: Greater 55, 88, 108, 160, 183; Lesser 56, 88, 108, 160, 183
Yellowtbroat, Common 26, 67, 91, 117, 175, 184

Zahurones, Penny 41
Ziolkowski, D. J. 80

Subscription And Organization Information [December 2014]

Nebraska Bird Review

The Nebraska Bird Review is published quarterly by the Nebraska Ornithologists' Union, Inc., as its official journal, and is sent to members not in arrears of dues. Annual subscription rates (on a calendar-year basis only): $25 in the United States and $35 in all other countries, payable in advance. Single copies are $7 each, postpaid, in the United States and $9 elsewhere. Send orders for back issues to Anita Breckbill, NOU Librarian, c/o Music Library, WMB 30, University of Nebraska, Lincoln, NE 68588-0101.

Memberships in the NOU (on a calendar-year basis only): Active Household (one or more people) $25; Sustaining …

Taming Pitchf/X Data With Xml2r And Pitchrx, Carson Sievert

The R Journal

XML2R is a framework that reduces the effort required to transform XML content into tables in a way that preserves parent to child relationships. pitchRx applies XML2R’s grammar for XML manipulation to Major League Baseball Advanced Media (MLBAM)’s Gameday data. With pitchRx, one can easily obtain and store Gameday data in a remote database. The Gameday website hosts a wealth of XML data, but perhaps most interesting is PITCHf/x. Among other things, PITCHf/x data can be used to recreate a baseball’s flight path from a pitcher’s hand to home plate. With pitchRx, one can easily create animations …

In Memory Of Margaret Triplett

Nebraska Bird Review

The NOU lost a longtime member in Kearney on August 7, 2014, when Margaret Sealing Triplett died.

Summary Of Raptor Banding Efforts At Hitchcock Nature Center, Fall 2014, Jerry Toll

Nebraska Bird Review

The 2014 season was by far the most unusual and frustrating season since the inception of raptor banding and hawk watch at the Hitchcock Nature Center in Pottawatomie County, Iowa, just north of Crescent. Banding diurnal raptors commenced on September 7th on schedule. The month of September was typical as far as capture rates and weather systems, although we were stymied somewhat by the lack of availability of European Starlings for lure birds. House Sparrows proved a nearly adequate substitute.

During the peak period of October, weather systems that drive diurnal raptor migration worked against monitoring efforts by forcing migration …

First Documented Nest Of Northern Saw-Whet Owl In Nebraska, Wayne J. Mollhoff

Nebraska Bird Review

Northern Saw-whet Owl was added to our avifauna with a list prepared by Taylor and Van Vleet (1889). The first suggestion of breeding was a second-hand report included in a paper presented at the first meeting of the Nebraska Ornithologists' Union in 1899 by M. A. Carriker, Jr., who "was told of a set of five eggs collected near Nebraska City about seven years ago" (1900), but which included no other details. At the next meeting, Bruner (1901) cited that report to include the species on a list of birds that breed in the state. Bruner, Swenk, and Walcott later …

Nebraska Bird Review (December 2014) 82(4), Whole Issue

Nebraska Bird Review

Fall Field Report, August–November 2014 ... 150

Holdrege Fall Field Days … 181

Summary of Raptor Banding Efforts at Hitchcock Nature Center, Fall 2014 ... 186

First Documented Nest of Northern Saw-whet Owl in Nebraska ... 189

In Memory of Margaret Triplett … 194

Index to Volume 82 … 195

Subscription and Organization Information ... 207

The Role Of Ceramides In Mediating Endotoxin-Induced Mitochondrial Disruption, Melissa Ellen Hansen

Theses and Dissertations

Ceramides are sphingolipids that serve as important second messengers in an increasing number of stress-induced pathways. Ceramide has long been known to affect the mitochondria, altering both morphology and physiology. Lipopolysaccharide (LPS) is a prevalent circulating inflammatory agent in obesity, potentially mediating some of the pathologies associated with weight gain. Given previous findings of TLR4-mediated ceramide accrual and ceramide-mediated mitochondrial disruption, we questioned whether ceramide is necessary for LPS-induced mitochondrial disruption. We found that LPS treatment increased gene transcript levels of ceramide synthesis enzymes and mitochondrial fission proteins and increased ceramide content in cultured myotubes and in mouse tissue. Mitochondrial …

Cheatgrass Die-Off Phenomena: What Are The Short And Long Term Recovery Factors Of Bromus Tectorum Stand Failure?, Joshua Alan Nicholson

Theses and Dissertations

Observations of Bromus tectorum L. (cheatgrass or downy brome) monocultures have shown that populations are susceptible to stand die-off or replacement failures. Die-offs, where the seed bank from the previous year fails to emerge, occurs in cheatgrass stands and it is unclear the trigger or cause. The fungus Fusarium has been identified in plant and seed samples from die-offs and may drive die-off activity through pathogenicity. Die-off recovery may take several years but cheatgrass populations eventually reestablish. The purpose of our study was to determine whether Fusarium is a potential player in a die-off, and understand how die-offs recover after …

Conscience And Context In Eastman Johnson's The Lord Is My Shepherd, Amanda Melanie Slater

Theses and Dissertations

This thesis considers the experiences that motivated the creation of an 1863 painting by American artist Eastman Johnson entitled The Lord is My Shepherd. An examination of the painting—which depicts a black man reading a Bible—reveals multiple artistic, social, political, and spiritual influences. Created in the midst of the American Civil War, the painting's inspiration derived from Johnson's New England childhood, training in Europe, encounters with the Transcendentalist movement, and his abolitionist views. As a result, The Lord is My Shepherd is a culminating work in Johnson's oeuvre that was prompted by years of experience and observations in an age …

Determining The Reliability Of An Early Expository Comprehension Assessment, Tammie Harding

Theses and Dissertations

This study investigated the reliability of the revised Early Expository Comprehension Assessment (EECA), a measure that looked at preschoolers' comprehension of expository text. Thirty-seven preschool children between the ages of four and five were administered two comparable versions of the measure by two examiners. Scoring procedures were created and the protocols were scored and compared for reliability. The data was analyzed using a mixed models Analysis of Variance for repeated measures and a maximum likelihood estimate of variance components. Results from the analysis showed that version and order had no significant effect on three of the response task scores (Purpose …

Fuel Response To Mechanical Mastication Of Pinyon-Juniper Woodlands In Utah, Alan Wyatt Shakespear

Theses and Dissertations

Pinyon-juniper woodland encroachment threatens ecosystem function and diversity on sagebrush steppe. Decreased fire frequency likely favors proliferation of pinyon-juniper woodlands and subsequent decline in desirable understory species. Increased tree cover produces hazardous canopy fuel loads that contribute to severe crown fires and threaten life and property at the wildland-urban-interface. Mechanical mastication converts large canopy fuels into small woody debris, altering wildfire dynamics from a potential crown fire to a more controllable surface fire. We measured fuel loading and cover on untreated, masticated, and masticated + burned treatments on 30-m transects within 30 X 33-m subplots, representing 45 different sites throughout …

Fire And Ungulate Herbivory Differentially Affect The Sexual Reproduction Of Generalist And Specialist Pollinated Plants, Andrew Hollis Lybbert

Theses and Dissertations

Currently the size and frequency of wildfires are increasing at a global scale, including arid ecosystems that exhibit great sensitivity to disturbance. Fire effects on plant pollination and reproductive success in deserts are largely unknown. Plant dependence on animal pollinators for reproduction can increase the risk of reproductive failure if pollination services are hindered or lost. Species that depend on few taxonomically related pollinator species are expected to be most negatively affected by disturbances that disrupt pollination interactions. To assess fire and isolation effects on reproductive success in desert plant communities, and how wildfire influences the pollination success of generalist …

Crash Prediction Modeling For Curved Segments Of Rural Two-Lane Two-Way Highways In Utah, Casey Scott Knecht

Theses and Dissertations

This thesis contains the results of the development of crash prediction models for curved segments of rural two-lane two-way highways in the state of Utah. The modeling effort included the calibration of the predictive model found in the Highway Safety Manual (HSM) as well as the development of Utah-specific models developed using negative binomial regression. The data for these models came from randomly sampled curved segments in Utah, with crash data coming from years 2008-2012. The total number of randomly sampled curved segments was 1,495. The HSM predictive model for rural two-lane two-way highways consists of a safety performance function …

Inheriting The Library: The Archon And The Archive In George Macdonald's Lilith, Lauran Ray Fuller

Theses and Dissertations

George MacDonald's novel Lilith relates the story of a young man inheriting his deceased father's estate and coming in contact with its remarkable library and mysterious librarian. The protagonist's subsequent adventures in a fantastical world prepare the young Mr. Vane to assume authority over his inherited archive and become an archon. Jacques Derrida's exposition of the responsibilities of the archon including archival authority, domiciliation, and consignation illuminate the mentoring role of the elusive librarian Mr. Raven in Vane's adventures. By using Derrida's deconstruction of archives to unpack the intricacies of knowledge transfer in MacDonald's novel, the lasting impact of the …

Pets In The City: Managing Surplus Dogs In Syracuse, New York, Kristin A. Cutler

Theses - ALL

This thesis contributes to the growing interest in animals in geography. Specifically, it situates pets within the geographic literature and addresses the causes and consequences of pet love in the United States. Using Syracuse, New York as a case study, this thesis illuminates the critical yet understudied existence of pets in the city, paying particular attention to the historical and contemporary foundations, management, and geographies of surplus dogs. Further, it explores major shifts in Americans' attitudes toward pets over the last two centuries, details the necessity for and establishment of animal management in the city, and explains the consequences (namely, …

Sing A Song Of Sixpence: The Birds We Found In The Web-Scale Discovery Pie, Sarah Fabian, Susann Devries, Sara Memmott

LOEX Conference Proceedings 2012

The use of the web-scale discovery product Summon has changed the ways in which EMU librarians provide research instruction to students, from beginner to graduate. Librarians were pleasantly surprised to realize that they could spend more time focusing on making sense of academic sources and less time teaching database-specific searching tips. This has strengthened instruction librarians’ emphasis on evaluation of sources in all instruction sessions, regardless of whether they involve the use of Summon. Presenters will also discuss user feedback and the other benefits and challenges of using a web-scale discovery product.

Retrograde Ngf Signaling In Pain, Tanvir Khan

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Nerve growth factor (NGF) is a member of the nerurotrophin family that plays a crucial role during development. Although NGF was discovered because of its actions during development, it is now known to function throughout the life of the animal. NGF plays a profound role in nociception because its high affinity receptor, TrkA, is expressed in nociceptors. In mammals, NGF causes thermal hyperalgesia that develops within minutes (acute hyperalgesia) and lasts for several days (chronic hyperalgesia). While NGF-induced acute peripheral sensitization/hyperalgesia occurs via TRPV1 receptor activation, chronic hyperalgesia is thought to take place with a delay, caused by upregulation of …

Graphene Nanoribbons Elicit Cell Specific Uptake And Drug Delivery Via Activation Of Epidermal Growth Factor Receptors, Sayan Mullick Chowdhury

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Ligands such as peptides, antibodies or other epitopes bind and activate specific cell receptors, and can be employed for targeted cellular delivery of pharmaceuticals such as drugs, genes and imaging agents. In this dissertation, I investigate the in vitro and hematological compatibility of oxidized graphene nanoribbons, non-covalently functionalized with PEG-DSPE (1, 2-distearoyl-sn-glycero-3-phosphoethanolamine-N[amino(polyethyleneglycol)]) (O-GNR-PEG-DSPE) and evaluate its potential as a drug delivery agent. Although, O-GNR-PEG-DSPE was found to interact with RBC membrane and induce structural changes in them, they did not affect other hematological parameters. In vitro studies showed that these particles activate epidermal growth factor receptors (EGFRs) and elicit cell …