Digital Commons Network^™

Bolivian Ectoparasites: A Survey Of The Fleas Of Ctenomys (Rodentia: Ctenomyidae), Elisa Pucu De Araujo, Marcela Lareschi, Scott Lyell Gardner

Harold W. Manter Laboratory of Parasitology: Faculty Publications

We present the results of a multiyear survey of the fleas from ctenomyid rodents across many different habitats from throughout Bolivia. New species records for Bolivia include Tiamastus palpalis and Ectinorus (Panallius) galeanus. New records of fleas from Ctenomys in Bolivia include Gephyropsylla klagesi, Sphinctopsylla inca, and Tetrapsyllus tristis.

States And Nomads: Hegel's World And Nietzsche Earth, Gary Shapiro

Philosophy Faculty Publications

What is Nietzsche's concept of the earth? While "earth" is often taken in a general way to refer to embodied life, to this world rather than to an imaginary and disastrous other world, I propose that the term and concept also have a significant political dimension-a geophilosophical dimension—which is closely related to the radical immanence so central to Nietzsche's thought. I shall argue that he often and pointedly replaces the very term "world" (Welt) with "earth" (Erde) because "world" is tied too closely to ideas of unity, eternity, and transcendence. "World" is a concept with theological …

Assessing Provider Knowledge And Attitude Towards Animal-Assisted Therapy As A Complementary Treatment For Children, Shannon Leigh Million

DNP Projects

Objective: The purpose of this project was to determine knowledge and attitudes of pediatric primary care providers working in a university outpatient clinic settings towards the use of animal-assisted therapy as a complementary treatment for children. This report also includes an integrative review of animal-assisted therapy in pediatric populations and a clinical practice guideline analysis regarding the use of equine facilitated learning with high risk children and adolescents in residential psychiatric treatment.

Methods: A survey tool was administered to the Department of Pediatrics at UK Healthcare.

Results: There were 41 respondents to the survey, 36 of which …

Further Characterization Of A Secreted Lipase From The Human Pathogen Leishmania Donovani By Determining The Effect Of Various Metal Ions On Its Enzymatic Activity., Lana Hoertz

Pell Scholars and Senior Theses

Leishmania donovani, a protozoan parasite, is the causative agent of the often fatal disease visceral leishmaniasis. The current treatments available are minimal and toxic to the patient. It has been shown that these organisms exhibit lipolytic activity during their growth in vitro. Lipases are enzymes that are known to aid in the development and virulence of several pathogenic organisms such as Candida albicans and Staphylococcus warneri. Little information is known, however, about the role of lipases in Leishmania species. We hypothesize that lipase may play a part in Leishmania's ability to survive within the human host as well as its …

The Judge’S Hold: A Struggle For Voice In Cormac Mccarthy’S Blood Meridian, Daniel R. Johnson

Pell Scholars and Senior Theses

Cormac McCarthy's Blood Meridian is a novel that provides a clear critique on the ways in which the American west was acquired. The text is awash with gratuitous violence, symbolism and storytelling, together creating a piece that offers a modern interpretation of American identity. This analysis will approach the novel by examining a struggle for voice between the two main characters Judge Holden and The Kid in the narration. In doing so, it will be shown that Blood Meridian uses Holden's voice to suppress all other worldviews within the text in order to show the invulnerability of the political rhetoric …

Tall Fescue Ergovaline Concentration Based On Sample Handling And Storage Method, Krista La Moen Lea

Theses and Dissertations--Plant and Soil Sciences

Ergovaline is produced by the endophyte Neotyphodium coenophialum (Morgan-Jones and Gams) in tall fescue (Schedonorus arundinacea (Schreb.) Dumort. = Festuca arundinacea Schreb.) and is blamed for a multitude of costly livestock disorders. Testing of pastures is common in both research and on farm situations. Since ergovaline is known to be unstable and affected by many variables, the objective of this study was to determine the effect of sample handling and storage on the stability of this compound. Homogeneous milled tall fescue sub-samples were analyzed for ergovaline concentration using HPLC after a range of sample handling procedures or storage. Ergovaline …

Field-Scale Water And Solute Transport, Yang Yang

Theses and Dissertations--Plant and Soil Sciences

Spatial variability of soil properties complicates the understanding of water and solute transport at the field scale. This study evaluated the impact of land use, soil surface roughness, and rainfall characteristics on water transport and Br^- leaching under field conditions by means of a new experimental design employing scale-dependent treatment distribution. On a transect with two land use systems, i.e., cropland and grassland, rainfall intensity and the time delay between Br^- application and subsequent rainfall were arranged in a periodically repetitive pattern at two different scales. Both scales were distinct from the scale of surface roughness as described …

Fusarium Head Blight Resistance And Agronomic Performance In Soft Red Winter Wheat Populations, Daniela Sarti Dvorjak

Theses and Dissertations--Plant and Soil Sciences

Fusarium head blight (FHB), caused by Fusarium graminearum Schwabe [telomorph: Gibberella zeae Schwein.(Petch)], is recognized as one of the most destructive diseases of wheat (Triticum aestivum L. and T. durum L.) and barley (Hordeum vulgare L.) worldwide. Breeding for FHB resistance must be accompanied by selection for desirable agronomic traits. Donor parents with two FHB resistance quantitative trait loci (QTL) Fhb1 (chromosome 3BS) and QFhs.nau-2DL (chromosome 2DL) were crossed to four adapted SRW wheat lines to generate backcross and forward cross progeny. F₂ individuals were genotyped and assigned to 4 different groups according to presence/ absence of …

Switchgrass Yield And Quality With Multiple Fertilizer Applications And Harvest Dates, Thomas Clarkson Keene

Theses and Dissertations--Plant and Soil Sciences

Switchgrass (Panicum virgatum L.) is an important native warm-season grass for biomass and forage production in the U.S. This research determined the effect of fertilizer type (conventional, manure, and biosolids) and rate on switchgrass biomass yield and forage quality. Fertilizers were added at 0, 33, 67, 100, and 134 kg N ha^-1 on established stands of ‘Kanlow’ switchgrass in three northeastern Kentucky counties. Soils across sites ranged from recently cleared forestland (low pH, P, and K) to productive cropland (high pH, P and K). Stands were sampled for forage nutritive value in June, simulating a hay harvest. Nutritive …

C And N Cycling Dynamics And Microbial Community Composition In High Tunnel Production Systems, Kavita Lakshmi Mizin

Theses and Dissertations--Plant and Soil Sciences

Across the United States, high tunnels are used as a means of season extension and control over climatic variability in fruit and vegetable production. However, high tunnel systems are an intensive form of agricultural production which may compromise soil and crop quality over time. This study examined the effects of the varying environmental conditions, created in two types of tunnel system, movable and stationary, on the flow of nitrogen from amendment to plant and impact on crop and soil quality parameters. The way nutrients cycled through these systems was different and the nutrient treatments had no consistent effects on soil …

Evaluating The Effect Maturity On The Intake And Digestibility Of Switchgrass Hay Consumed By Beef Steers, David H. Davis

Theses and Dissertations--Plant and Soil Sciences

There has been increased interest in utilizing switchgrass (Panicum virgatum) as biomass. There are several challenges to developing this industry, and these have led to the potential use of switchgrass as hay for feeding beef cattle in Kentucky. The effect of increasing maturity on crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF) and nutritive values of switchgrass hay has been well documented, but few in vivo intake and digestibility trials have been conducted to assess this effect on animal performance when feeding beef cattle. Two in vivo intake and digestibility trials were conducted in 2011 …

The Influence Of Tall Fescue Cultivar And Endophyte Status On Root Exudate Chemistry And Rhizosphere Processes, Jingqi Guo

Theses and Dissertations--Plant and Soil Sciences

Tall fescue (Lolium arundinaceum (Schreb.) Darbysh.) is a cool-season perennial grass used in pastures throughout the Southeastern United States. The grass can harbor a fungal endophyte (Epichloë coenophiala) thought to provide the plant with enhanced resistance to biotic and abiotic stress. However, the alkaloids produced by the common variety of the endophyte cause severe animal health issues resulting in a considerable amount of research focused on eliminating the toxic class of alkaloids while retaining the positive abiotic and biotic stress tolerance attributes of the other alkaloids. In doing so, very little attention has been paid to the …

Bacteria In Bioethanol Fermentations, Qing Li

Theses and Dissertations--Plant and Soil Sciences

To gain a better understanding of contaminating bacteria in bioethanol industry, we profiled the bacterial community structure in corn-based bioethanol fermentations and evaluated its correlation to environmental variables. Twenty-three batches of corn-mash sample were collected from six bioethanol facilities. The V4 region of the collective bacterial 16S rRNA genes was analyzed by Illumina Miseq sequencing to investigate the bacterial community structure. Non-metric multidimensional scaling (NMDS) ordination plots were constructed to visualize bacterial community structure groupings among different samples, as well as the effects of multiple environmental variables on community structure variation. Our results suggest that bacterial community structure is facility-specific, …

Rebalancing Pay-For-Delay: Why No-Authorized Generic Agreements Should Be Subject To Higher Antitrust Scrutiny, David C. Kurlander

Cardozo Arts & Entertainment Law Journal

No abstract provided.

Borrowed Fiction And The Rightful Copyright Position, Viva R. Moffat

Cardozo Arts & Entertainment Law Journal

Works of "borrowed fiction"-unauthorized sequels or retellings of literary works-have long prompted legal, cultural, and social backlash. With respect to copyright disputes, this is because borrowed fiction entails a range of legitimate but conflicting interests. Copyright law has historically elevated the interests of the "original" author over those of other writers and the reading public. Scholars have offered a range of proposals to counter this tendency, but these reforms have focused on the infringement analysis and the fair use doctrine. Each of those, however, involves a binary decision, one that is not amenable to accommodating the conflicting interests at stake. …

Sphingosine 1-Phosphate Receptor Signaling In Mesenchymal Stromal Cells, Sarah Tucker Marrison

MUSC Theses and Dissertations

Mesenchymal stromal cells (MSCs) are a multipotent cell population acquired most prominently from bone marrow with the capacity to differentiate into osteoblasts, chondrocytes, adipocytes, cardiomyoctes, fibroblasts and other cell types. The immunoprivileged nature of these cells combined with their ability to home to sites of injury enhances therapeutic interest in this stem cell population. Phase I‐III clinical trials are being conducted evaluating the therapeutic potential of MSCs in graft vs. host disease, following acute myocardial infarction, multiple sclerosis, and bone and cartilage diseases. Sphingosine 1‐phosphate (S1P) is a biologically active sphingolipid impacting proliferation, apoptosis, inflammation, and angiogenesis. Interactions with 5 …

Cosee Ocean Inquiry Group Report: Opportunities For Creating Lifelong Ocean Science Literacy, Paul Boyle, Vince Breslin, Lisa Craig Brisson, John Fraser, Alan J. Friedman, Katie Gardner, Sarah Schoedinger, Jerry Schubel, Steve Uzzo, Steven Yalowitz

School for the Environment General Publications

This Inquiry Group Report for the Centers for Ocean Sciences Education Excellence Ocean Communities in Education And Social Networks (COSEE OCEAN) provides a fresh look at how broader ocean science literacy can be developed, especially through less-recognized channels such as opportunistic learning, the private and “third” sectors, and the enormously varied activities under the heading of informal science education. The 10 authors of this report (see Contributors section) have been working together for two years to find and review a range of issues and resources for current and potential ocean science literacy providers, both professional and volunteer.

Several chapters provide …

Analyzing Commercial Video Game Instruction Through The Lens Of Instructional Design, Susan E. Copp, Rebecca L. Fischer, Tian Luo, David R. Moore, Seann Dikkers

STEMPS Faculty Publications

This paper will examine how Gagne’s Nine Events of Instruction (1992) may appear, perhaps inadvertently, within commercial games that guide the user from novice to expert player. By employing a qualitative artifact analysis methodology, we examine a popular action adventure video game to determine if game designers encourage players to build game expertise by employing similar events to Gagne’s instructional design model. We demonstrate that our artifact of analysis does consistently employ Gagne’s events, though often in a manner unique to a digitally mediated space. We conclude that an experiential game setting has the potential to be a platform for …

House To House: Mergers, Annexations, & The Racial Implications Of City-County Politics In St. Louis, Anders Walker

All Faculty Scholarship

According to most scholars, Jim Crow's death elevated African Americans even as white departures depressed them, condemning blacks to isolated neighborhoods, segregated schools, and crumbling urban cores. To counter such reversals, liberals endorsed the consolidation of urban and suburban zones, hoping that such moves might thwart flight, promote integration, and ameliorate the effects of what scholars began in the 1970s to term “institutional” or “structural” racism. Initially such efforts focused primarily on schools, but quickly expanded to include other types of consolidation as well, including the consolidation, or merger, of major metropolitan areas and surrounding counties. While the rubric of …

Lymphoproliferative And Gamma Interferon Responses To Stress- Regulated Mycobacterium Avium Subsp. Gurungparatuberculosis Recombinant Proteins, Ratna B. Gurung, Douglas J. Begg, Auriol C. Purdie, Kumudika De Silva, John Bannantine, Richard J. Whittington

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

Johne’s disease in ruminants is a chronic infection of the intestines caused by Mycobacterium avium subsp. paratuberculosis. An important strategy to control disease is early detection, and a potentially efficient method for early detection is measurement of cell-mediated immune responses developed by the host in response to exposure or infection. One method is to measure lym- phoproliferation and cytokine release from the host cells when exposed to the organism or parts of the organism. In this study, 10 recombinant M. avium subsp. paratuberculosis proteins known to be upregulated under in vitro stress conditions were evalu- ated by examining their ability …

Screening Of Mycobacterium Avium Subsp. Paratuberculosis Mutants For Attenuation In A Bovine Monocyte-Derived Macrophage Model, Elise A. Lamont, Adel M. Talaat, Paul M. Coussens, John Bannantine, Yrjo T. Grohn, Robab Katani, Ling-Ling Li, Vivek Kapur, Srinand Sreevatsan

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

Vaccination remains a major tool for prevention and progression of Johne’s disease, a chronic enteritis of ruminants worldwide. Currently there is only one licensed vaccine within the United States and two vaccines licensed internationally against Johne’s disease. All licensed vaccines reduce fecal shedding of Mycobacterium avium subsp. paratuberculosis (MAP) and delay disease progression. However, there are no available vaccines that prevent disease onset. A joint effort by the Johne’s Disease Integrated Program (JDIP), a USDA-funded consortium, and USDA—APHIS/VS sought to identify transposon insertion mutant strains as vaccine candidates in part of a three phase study. The focus of the Phase …

Crop Residues, Douglas L. Karlen, David R. Huggins

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

Crop residues (e.g., corn stover and small grain straw) are sometimes excluded when discussing cellulosic energy crops per se, but because of the vast area upon which they are grown and their current role in the development of cellulosic energy systems, this chapter will review several important attributes of this “herbaceous” feedstock. Crop residues are potential feedstock sources for second-generation biofuel production. These materials, along with dedicated energy crops (e.g., switchgrass [Panicum virgatum L.], Miscanthus [Miscanthus × giganteus]), are considered to have greater potential for biofuel production than current first-generation feedstock (i.e., corn grain) [1–3]. Production of ethanol and other …

Beef Species Symposium: An Assessment Of The 1996 Beef Nrc: Metabolizable Protein Supply And Demand And Effectiveness Of Model Performance Prediction Of Beef Females Within Extensive Grazing Systems, R.C. Waterman, J. S. Caton, C. A. Loest, M. K. Petersen, A. J. Roberts

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

Interannual variation of forage quantity and quality driven by precipitation events influence beef livestock production systems within the Southern and Northern Plains and Pacific West, which combined represent 60% (approximately 17.5 million) of the total beef cows in the United States. The beef cattle requirements published by the NRC are an important tool and excellent resource for both professionals and producers to use when implementing feeding practices and nutritional programs within the various production systems. The objectives of this paper include evaluation of the 1996 Beef NRC model in terms of effectiveness in predicting extensive range beef cow performance within …

Sorghum Flour Characterization And Evaluation In Gluten-Free Flour Tortilla, M. Winger, H. Khouryieh, F. Aramouni, T. Herald

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

Four sorghum hybrids (Fontanelle-625 [F-625]), Fontanelle-1000 [F-1,000], ATx631xRTx2907 [NE#20] and 5,040C) were characterized and evaluated for kernel characteristics, proximate analysis, flour characterization (particle size distributions, starch damage, amylose content and starch pasting properties) and end product in gluten-free tortilla. A commercial sorghum flour (TVM) was used as a control. Significant differences were found (P < 0.05) among hybrids for kernel and flour composition except total starch (P > 0.05). NE#20 had the largest particle diameter for both flour and starch. F-1000 had significantly higher starch damage compared with the other hybrids. Flours with smaller particle size and higher starch damage contributed to softer and more extensible tortilla. Amylose content ranged from 20.2 (NE#20) to …

Grazing Management, Season, And Drought Contributions To Near-Surface Soil Property Dynamics In Semiarid Rangeland, M. A. Liebig, S. L. Kronberg, J. R. Hendrickson, J. R. Gross

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

Grazing management effects on soil property dynamics are poorly understood. A study was conducted to assess effects of grazing management and season on soil property dynamics and greenhouse gas flux within semiarid rangeland. Grazing management treatments evaluated in the study included two permanent pastures differing in stocking rate (moderately and heavily grazed pastures) and a fertilized, heavily grazed crested wheatgrass (Agropyron desertorum [Fisch. ex. Link] Schult.) pasture near Mandan, North Dakota. Over a period of 3 yr, soil properties were measured in the spring, summer, and fall at 0–5 cm and 5–10 cm. Concurrent to soil-based measurements, fluxes of carbon …

Modeling Weather And Stocking Rate Effects On Forage And Steer Production In Northern Mixed-Grass Prairie, Q. X. Fang, A. A. Andales, J. D. Derner, L. R. Ahuja, L. Ma, P. N. S. Bartling, J. L. Reeves, Z. Qi

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

Stocking rate (SR) is the primary management factor that influences livestock gains, plant community changes and forage production, as well as economic returns for livestock producers. More effective stocking decision making by ranchers in the semi-arid northern mixed-grass prairie requires clearly understanding forage production and yearling steer weight gain (SWG) responses to SR and high weather variability. The objectives of this study were to: (1) test the Great Plains Framework for Agricultural Resource Management-Range (GPFARM-Range) model for predicting forage production and SWG under three experimental SR treatments and long-term weather conditions on semiarid northern mixed-grass prairie in southeast Wyoming, USA; …

The Use Of Electromagnetic Induction Techniques In Soils Studies, James A. Doolittle, Eric C. Brevik

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

Electromagnetic induction (EMI) has been used to characterize the spatial variability of soil properties since the late 1970s. Initially used to assess soil salinity, the use of EMI in soil studies has expanded to include:mapping soil types; characterizing soil water content and flow patterns; assessing variations in soil texture, compaction, organicmatter content, and pH; and determining the depth to subsurface horizons, stratigraphic layers or bedrock, among other uses. In all cases the soil property being investigatedmust influence soil apparent electrical conductivity (EC_a) either directly or indirectly for EMI techniques to be effective. An increasing number and diversity of …

Northern Great Plains Research Laboratory Integrator February 2014

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

Tannins in the soil -1

Message from Matt - 2

New Faces - 2

Quantifying the value of soil organic matter - 3

Research Results Conference - 4

Livestock weather relationships - 5

Jet fuel from Brassica - 6

Grazing for conservation - 7

Kentucky bluegrass impact - 7

Water use efficiency of grasses - 9

Glomalin and aggregation - 10

NDSU Energy Beet research - 11

Seasonal Weather Influences On Yearling Beef Steer Productionin C3-Dominated Northern Great Plains Rangeland, Justin L. Reeves, Justin D. Derner, Matt A. Sanderson, John R. Hendrickson, Scott L. Kronberg, Mark P. Petersen, Lance T. Vermeire

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

In the face of an increasingly variable climate, long-term cattle weight gain datasets are rare, yet invalu-able, for determining site-specific influences of seasonal weather patterns on cattle production. Here,we present a long-term (1936–2005) yearling Hereford steer dataset collected at the Northern GreatPlains Research Laboratory (NPGRL) near Mandan, ND, USA. Data were analyzed using weighted AICcmodel averaging to examine the effects of spring (April–June) and summer (July–September) temper-ature and precipitation, as well as prior growing season (prior April–September) and prior fall/winter(prior October–March) precipitation on cattle production (kg/ha) under light (37.4 ± 5.3 SD Animal UnitDays [AUD]/ha across all study years) and …

Monitoring Runoff From Cattle-Grazed Pastures For A Phosphorus Loss Quantification Tool, Peter A. Vadas, Dennis L. Busch, J. Mark Powell, Geoff E. Brink

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

Nitrogen (N) and phosphorus (P) loss from agriculture persists as a water quality impairment issue. For dairy farms, nutrients can be lost from cropland, pastures, barnyards, and outdoor cattle lots. We monitored N and P loss in runoff from dairy and beef grazed pastures for two years in southwest Wisconsin, USA and tested the accuracy of the Annual P Loss Estimator (APLE) model to predict runoff P from pastures using study and literature data. About 3–10% of annual precipitation became runoff from the pastures, and sediment loss was very low due to well-established vegetation. Measured annual nutrient loss in runoff …