Digital Commons Network^™

Effect Of Beef Heifer Development Systems Utilizing Corn Residue And Late Summer Planted Cover Crops On Growth, Reproductive Performance, And Economics, Hannah F. Speer, Robert A. Cushman, Harvey Freetly, Jay Parsons, Jessica Windh, M. E. Drewnoski

Department of Agricultural Economics: Faculty Publications

The objective of this study was to evaluate growth and reproductive performance of heifers developed using 3 different winter systems in the midwestern U.S. Spring-born heifers (n = 1,156; 214 d of age; SD ± 17 d) were used in a 3-yr study to evaluate performance in winter development systems, which utilized cover crop (CC) and corn residue grazing. Heifers were assigned to 1 of 3 treatments: grazing corn residue with 0.77 kg/d dried distillers grains (CD) or 1.69 kg/d wheat midds (CW) supplementation followed by a grower ration in the drylot, or grazing late summer planted oat-brassica CC followed …

Cover Crop Utilization, Implications For Cropland Lease Arrangements In 2024, Jim Jansen, Jeff Stokes

Center for Agricultural Profitability

When planting a cover crop across Nebraska, the motivation of the landowner or operator may vary depending on the needs of the region or management requirements. Increased interest in cover crops in recent years has come from the perceived benefits to the land and mitigation of environmental issues. Cover crops reduce soil degradation (i.e. erosion) and enhance soil quality (i.e. organic matter and nutrient content). These effects may take multiple years to fully materialize but tend to persist for several years into the future. Grazing the cover crops or harvesting for forage are perceived as viable options for generating benefits …

Students’ Knowledge And Attitude Towards Plagiarism: A Case Of Lusaka Apex Medical University Students, Dalitso Mvula, Treasure Chisakula

Library Philosophy and Practice (e-journal)

Laws guide societies in the world. These laws are meant to create an environment that ensures citizens’ rights are respected. The same happens in academia. There are guidelines that students follow in the execution of their assignments, examinations and research in higher institutions. These guidelines are meant to ensure that there is no any form of academic dishonesty being perpetuated by the students. This paper investigated Lusaka Apex Medical University students’ knowledge and attitude towards plagiarism. The study sought to assess the knowledge of LAMU students towards plagiarism, examine the attitude of LAMU students towards plagiarism, assess factors that foster …

Records Of The Red-Bellied Snake (Storeria Occipitomaculata) In Central And Northeastern Nebraska, Taylor Lowe, Sarah M. Bailey, Dan D. Fogell, Keith Geluso

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Red-bellied Snakes (Storeria occipitomaculata) are a distinctive, small species that live in moist woodlands throughout much of eastern North America. In the Great Plains, isolated populations exist in South Dakota, Wyoming, and Nebraska. In Nebraska, the only known extant population occurs in wooded riparian habitats along the Big Bend Reach of the Platte River in southcentral parts of the state. Herein, we report on new county records of Red-bellied Snakes in Nebraska, with two observations from Merrick County along the Platte River adjacent to known populations and two observations of a new population in the extreme northeastern part …

Annual Forage Insurance Program Performance, Jay Parsons

Cornhusker Economics

In 2014, the Annual Forage Insurance Program (AFIP) was offered for the first time by the USDA – Risk Management Agency (RMA) as a pilot program for the states of Nebraska, North Dakota, South Dakota, Kansas, Oklahoma, and Texas. It was expanded to include Colorado in 2016 and New Mexico in 2017. This year marks the 10-year anniversary of the program, and the goal of this article is to provide a summary of where the program is and how it is being used. We will focus specific attention on Nebraska but also provide an overview of the national picture.

The …

Library Services And Resource Provision To Prison Inmates In Enugu Maximum Prison Library, Enugu State, Nigeria, Andrew Ifeanyi Ifeabor, Godwin Sunday Ezeh, Comfort Ometere Alabi, Margaret N. Ngwuchukwu

Library Philosophy and Practice (e-journal)

The study focused on library services and resource provision to prison inmates in Enugu Maximum Prison Library Enugu State Nigeria. Four (4) research questions were formulated to guide the study. The objectives of the study were to find out the extent of library services provision to the prison inmates, extent of provision of library resources to the inmates, agencies that provide resources and services to the Prison Library, and the problems associated with the provision of library services and resources to meet the inmates’ information needs. Eighty-three (83) respondents comprising eighty prison inmates and three library staff were used as …

Development And Evaluation Of An Expedited System For Creation Of Single Walled Carbon Nanotube Platforms, Ivon Acosta Ramirez, Omer Sadak, Wali Sohail, Xi Huang, Yongfeng Lu, Nicole M. Iverson

Department of Electrical and Computer Engineering: Faculty Publications

Single-walled carbon nanotubes (SWNT) have a strong and stable near-infrared (nIR) fluorescence that can be used to selectively detect target analytes, even at the single molecule level, through changes in either their fluorescence intensity or emission peak wavelength. SWNTs have been employed as NIR optical sensors for detecting a variety of analytes. However, high costs, long fabrication times, and poor distributions limit the current methods for immobilizing SWNT sensors on solid substrates. Recently, our group reported a protocol for SWNT immobilization with high fluorescence yield, longevity, fluorescence distribution, and sensor response, unfortunately this process takes 5 days to complete. Herein …

Ideas For Estate And Transition Planning: Gifting Ownership, Jessica J. Groskopf

Center for Agricultural Profitability

For many farm and ranch families, bringing children or grandchildren into the operation is the ultimate goal. Successfully bringing additional family members into the operation may require some creativity as all parties need to maintain a viable standard of living. This article is part of a series that will highlight ideas and tactics for bringing another family member into the operation.

A strategy that is gaining popularity is the gifting of shares or a percentage of the business from the owner to their heirs. In this article, the person gifting shares, or ownership is called the donor, and the person …

Assessment Of Genetic Diversity And Population Structure Of U.S. Polypay Sheep From Breed Origins To Future Genomic Selection, Carrie S. Wilson, Jessica Lynn Petersen, Luiz F. Brito, Brad A. Freking, Sara M. Nilson, J. Bret Taylor, Thomas W. Murphy, Ronald M. Lewis

Department of Animal Science: Faculty Publications

Knowledge of past and present genetic diversity within a breed is critical for the design and optimization of breeding programs as well as the development of strategies for the conservation of genetic resources. The Polypay sheep breed was developed at the U.S. Sheep Experiment Station (USSES) in 1968 with the goal of improving productivity in Western U.S. range flocks. It has since flourished in the more intensively managed production systems throughout the U.S. The genetic diversity of the breed has yet to be documented. Therefore, the primary objective of this study was to perform a comprehensive evaluation of the genetic …

Segundo Congreso Internacional De Iconografía Precolombina, 2023. Actas, Victòria Solanilla Demestre

Zea E-Books Collection

El objetivo de este II Congreso fue, como en el anterior, abrir un espacio de reflexión propositiva y multidisciplinaria para que, a partir de análisis de objetos plásticos u otras manifestaciones concretas, así como de documentos escritos, se pudiera replantear la importancia de la imagen y de la interpretación iconográfica como fuente de conocimiento de las culturas precolombinas. Es el momento de seguir aceptando nuevos enfoques pluridisciplinares o si se quiere más “humanísticos” que nos den una visión lo más completa posible, a través de la iconografía, del pasado precolombino tan rico en imágenes y símbolos.

Contribuciones de Luz Adriana …

Optimized Gadolinium-Do3a Loading In Raftpolymerized Copolymers For Superior Mr Imaging Of Aging Blood–Brain Barrier, Hunter A. Miller, Aaron Priester, Evan T. Curtis, Krista Hilmas, Ashleigh Abbott, Forrest Kievit, Anthony J. Covertine

Department of Biological Systems Engineering: Papers and Publications

The development of gadolinium-based contrast agents (GBCAs) has been pivotal in advancing magnetic resonance imaging (MRI), offering enhanced soft tissue contrast without ionizing radiation exposure. Despite their widespread clinical use, the need for improved GBCAs has led to innovations in ligand chemistry and polymer science. We report a novel approach using methacrylate-functionalized DO3A ligands to synthesize a series of copolymers through direct reversible addition-fragmentation chain transfer (RAFT) polymerization. This technique enables precise control over the gadolinium content within the polymers, circumventing the need for subsequent conjugation and purification steps, and facilitates the addition of other components such as targeting ligands. …

Lymphoid Tissues Contribute To Plasma Viral Clonotypes Early After Antiretroviral Therapy Interruption In Siv-Infected Rhesus Macaques, Antonio Solis-Leal, Nongthombam Boby, Suvadip Mallick, Yilun Cheng, Fei Wu, Grey De La Torre, Jason Dufour, Xavier Alvarez, Vinay Shivanna, Yaozhong Liu, Christine M. Fennessey, Jeffrey D. Lifson, Qingsheng Li, Brandon F. Keele, Binhua Ling

School of Biological Sciences: Faculty Publications

The rebound-competent viral reservoir, composed of a virus that is able to persist during antiretroviral therapy (ART) and mediate reactivation of systemic viral replication and rebound viremia after ART interruption (ATI), remains the biggest obstacle to treating HIV infection. A better understanding of the cellular and tissue origins and the dynamics of viral populations that initiate rebound upon ATI could help develop therapeutic strategies for reducing the rebound-competent viral reservoir. In this study, barcoded simian immunodeficiency virus (SIV), SIVmac239M, was used to infect rhesus macaques to enable monitoring of viral barcode clonotypes contributing to virus detectable in plasma after ATI. …

Scholarly Contributions And Web Visibility Of Library And Information Science Educators In Nigeria, Manir Abdullahi Kamba, Sani Mohammed Gwarzo

Library Philosophy and Practice (e-journal)

Abstract

This study aims to investigate the scholarly contributions and web visibility of LIS educators in Nigeria through citation analysis using Google Scholar. The study analyzed the scholarly contributions of LIS educators and ranks them according to their performance. The study confined its scope to present LIS educators working in LIS schools in Nigeria. Scholarly contributions and web visibility of LIS educators was carried out by counting the number of articles published, number of citations received, h-index, and i10 index. Data was collected using Google Scholar database because of its comprehensiveness in scholarly literature. The collected data were analyzed and …

The Growth Of Ethanol In Brazil: Sugarcane, Corn, And A Few Other Things, Fabio Mattos

Cornhusker Economics

Although we can expect more ethanol produced from corn in the coming years, it is unclear whether it will keep expanding at the same pace as in recent years or how much it will contribute to total ethanol production.

One point to keep an eye on is the typical dynamics of markets. If supply and demand conditions and price movements make corn-ethanol more profitable, ethanol plants in Brazil will keep increasing their production. If it makes more economic sense to produce corn-ethanol (as it happened recently), they will use more corn to produce ethanol.

Supply and demand conditions for ethanol, …

A Systematic Review Of Academic Writing Services In Low- And Middle-Income Countries, Augustine N. Gitonga, Peter M. Gatiti, Prisila Everisty Mlingi

Library Philosophy and Practice (e-journal)

Libraries are the key research and scholarly communication centres of any university. The information literacy skills offered to library users enable scientific communication. As new roles for librarians emerge to meet changing user needs and match fluid technological trends, academic libraries must combine their rich resources with cutting-edge skills to further impact the scientific world. There is a need for a sound, evidence-based appreciation of the factors that influence or hinder the establishment of academic writing centres and academic writing services in Low- and Middle-income Countries (LMIC). This article aims to synthesise qualitative and mixed methods research on academic writing …

Research Productivity And Publication Trends Of ‘Law Library Journal’ (1989-2021): A Scientometric Study, Madhukar Bapu Togam

Library Philosophy and Practice (e-journal)

Structured Abstract:

Purpose:

The researcher has conducted a quantitative analysis of literature published in the Law Library Journal (LLJ) during the period of 1989 to 2021 (thirty-two years) using a series of scientometrics indicators. Such as annual scientific production, year-wise distribution of articles, and their average citations. i.e. most locally cited authors and most frequent word occurrences, the frequency distribution of scientific productivity by Lotka’s law, top-five most cited documents, most relevant affiliations, and top twenty prolific authors engaged in Law Library Journal. Addition to that the co-authorship pattern author-wise, organization-wise and country-wise, and country-wise scientific production, institution’s collaboration network …

Proficiency In Utilizing Web Resources And Applications To Support Researchers: A Gender Wise Analysis Of Engineering College Library Professionals In Kerala, Usman Koya P T, Dr. Gopakumar V

Library Philosophy and Practice (e-journal)

The study aims to assess the proficiency of engineering college library professionals in Kerala in utilizing web resources and applications to support researchers. The focus is on the familiarity of library professionals with software essential for research scholars, access to Internet-based resources, and research and publishing tools. The study is limited to engineering college library professionals affiliated with APJ Abdul Kalam Technological University, Kerala (KTU). Proficiency in commonly used software and tools in modern libraries, such as search engines, reference management software, and plagiarism detection software, is evaluated. Gender-based analysis is applied to the data gathered from 210 respondents out …

Nebraska Monthly Economic Indicators: July 3, 2024, Eric Thompson

Leading Economic Indicator Reports

The Leading Economic Indicator-Nebraska rose by 0.26% in May 2024. The increase in the leading indicator, designed to predict economic growth six months into the future, implies that the Nebraska economy will grow through the end of 2024. There was an increase in manufacturing hours worked in May, as Nebraska continues to benefit from strong demand for food products. Business expectations remained positive. Respondents to the May Survey of Nebraska Business reported plans to increase sales and employment over the next six months.

Librarians’ Use Of Ict, Work Ethics And Library Users’ Satisfaction In Public Universities In Edo State, Nigeria, Anthony Solomon

Library Philosophy and Practice (e-journal)

This study investigated the influence of ICT use and work ethics by librarians on library users’ satisfaction in public universities in Edo State; the descriptive survey research design was adopted; and the study population was 12,400 library users, with a sample size was 388, while the simple random sampling technique was adopted. The instrument for data collection was the structured questionnaire, and data collected was analysed using inferential statistics. Findings showed that ICT use had a strong influence on library users’ satisfaction (R2 = 0.448; F = 250.565; p = 0.001); work ethics had a weak influence on library users’ …

Multi-Case Study Of Left-Flank Boundaries Within Supercells, Peyton B. Stevenson

Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research

This study investigates the prevalence and significance of forward-flank convergence boundaries (FFCBs) and left-flank convergence boundaries (LFCBs) in shaping the structure and intensity of supercells, using observational data from various field projects. Unlike previous research focusing on individual cases, this study examines a diverse range of cases to provide comprehensive insights into the relationship between these boundaries and supercell characteristics such as intensity, longevity, and tornadogenesis. By analyzing high-resolution surface data, the research addresses the frequency, location, and intensity of these boundaries, and their impact on pseudo vertical vorticity, pseudo convergence, and density gradients. A total of 228 boundary identifications …

Biostratigraphic Revision Of Esthonyx (Tillidontia, Mammalia) In The Contect Of Climate Change In The Lower Eocene Of The Bighorn Basin, Wyoming, John Colter Johnson

Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research

Esthonyx is an early Eocene tillodont found in North America, Europe, and India. The genus was named by Edward Drinker (E. D.) Cope in 1874 based on specimens from the San Jose Formation in New Mexico. Since then, several species of Esthonyx have been described from North America alone. The best record of Esthonyx comes from the central Bighorn Basin (BHB) in Wyoming, where it appears in 220 localities in a 640 m-thick stratigraphic succession. Since the last summary of Esthonyx in the BHB, several hundred new specimens have been collected and curated at the Denver Museum of Nature and …

Phylogeny And Disparity Of Ammonoid Family Acanthoceratidae Over Ocean Anoxic Event 2, Lindsey Howard

Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research

The widespread use of genera as proxies for species in paleobiological studies might affect the results of these studies. Although most attention has been given to taxonomic diversity studies, this could also be true of disparity and phylogenetic studies. In particular, the assumption that particular character states truly diagnose all members of a genus might distort results. This study examines the disparity of Acanthoceratid ammonoids at both the generic and species level. 149 species from 42 genera were examined with 52 characters measured. Following the measurements, an inverse modeling simulation was run 100 times to generate a simulated phylogeny with …

Design And Evaluation Of An Esa-Based Method Of Ensemble Subsetting For A Wofs (Warn On Forecast-Like System), Daniel J. Butler

Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research

Forecasting severe thunderstorm environments in the southeastern United States can be challenging due to mesoscale heterogeneities such as shortwave troughs, pre-existing airmass boundaries, cold fronts aloft, low-level jets, dry air intrusions, and mesoscale lows. To combat these challenges, ensemble sensitivity analysis (ESA) may be applied to a Warn-on-Forecast (WOF)-like ensemble to improve forecasts of severe convection through ensemble weighting and subsetting. Ensemble-based weighting and subsetting uses ensemble members that most accurately represent the thunderstorm environment in areas of mesoscale heterogeneity. This study creates and evaluates the ensemble-based weighting and subsetting in four cases of severe thunderstorm occurrence. The open parameter …

Assessing Soil Properties For Optimized Irrigation Development In Sudan, Northern Africa, Suhib Hamid, Derek M. Heeren, Aaron R. Mittelstet, Saleh Taghvaeian, Randall S. Ritzema

Department of Biological Systems Engineering: Conference Presentations and White Papers

Sustainable irrigation methods maximize agricultural productivity in Northern African countries like Sudan. This project evaluates soil properties to develop optimized irrigation strategies for Sudan's arid and semi-arid climate. Assessing soil characteristics such as texture, infiltration rates, and nutrient content informs the selection of modern irrigation systems. Data from 3,192 locations, collected using GPS and ring infiltrometers for infiltration rates, alongside laboratory analyses for soil properties, were employed. A ranking system determined suitable irrigation systems for specific soil classes, considering factors like slope, wind, crop tolerance, available water capacity (AWC), drainage, germination, capital cost, labor cost, maintenance, and evapotranspiration (ET). The …

Triticale As A Source Of Resistance To Wheat Streak Mosaic Virus And Triticum Mosaic Virus, Marcos Winicius Goncalves De Souza

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

Wheat streak mosaic virus (WSMV) and Triticum mosaic virus (TriMV) present a great threat to wheat production in the Great Plains area of the United States due to the loss of photosynthetic area causing reductions in crop yields. Effective control of these viruses is limited to a few available strategies including controlling volunteer wheat and using currently identified resistant genes to both the vector and viruses. While effective, these genes show temperature sensitivity and yield drag, and evidence that the vectors and viruses can overcome them has been found. Thus, new methods of genetic resistance are urgently needed. Field observations …

Hybridization Between The Rare Gray-Headed Chickadee And The Abundant Boreal Chickadee In The Midst Of Shifting Climate, Matthew R. Armstrong

School of Natural Resources: Dissertations, Theses, and Student Research

As species respond to changing climate, distributions and abundances may shift and alter species interactions. Hybridization, a relatively widespread phenomenon becoming more common with climate change, can have beneficial and detrimental effects on population growth rates and genetic integrity. Beneficial effects due to the introduction of advantageous alleles and increased genetic diversity may result from hybridization. Species may also accrue fitness costs associated with changing climates if mismatches occur between environmental variables and phenotypes. The gray-headed chickadee, Poecile cinctus lathami, is an extremely rare songbird that has experienced marked declines in recent decades within its restricted distribution in Alaska …

Population Demography, Occupancy, And Connectivity Of Invasive Bigheaded Carp In The Platte River, Nebraska And Its Tributaries, Blake W. Logan

School of Natural Resources: Dissertations, Theses, and Student Research

Silver Carp Hypophthalmichthys molitrix and Bighead Carp H. nobilis, collectively referred to as bigheaded carp, are invasive species in the United States of America that have expanded their range throughout the Missouri River basin in the last three decades. It may be desirable to develop management plans directed at the monitoring, control, or removal of bigheaded carp within the Missouri River basin. However, a knowledge gap exists regarding bigheaded carp ecology in Missouri River tributaries, which may be important for the development of management plans. As such, this study characterized bigheaded carp population demographics, occupancy, and connectivity in …

Virtual Fencing In Livestock Management: Effects On Beef Cattle Stress And Enhancing Wildlife Conservation, Kaitlyn E. Dozler

School of Natural Resources: Dissertations, Theses, and Student Research

I examined the effects of virtual fencing on beef cattle stress and how implementing the technology can aid wildlife habitat conservation at the University of Nebraska Gudmundsen Sandhills laboratory (GSL) near Whitman, NE. First, I examined how virtual fencing influences acute heart rate changes in beef cattle fitted with the virtual fencing collars. No significant difference in the average heart rate of a cow (P > 0.05) was observed between the 30 min control and virtual fenced periods for both trial dates. Second, I examined the influence of topography on wildlife species richness and presence at GSL using wildlife camera …

Spatial Ecology Of Mountain Lions Throughout Their Distribution In California, Kyle D. Dougherty

School of Natural Resources: Dissertations, Theses, and Student Research

Mountain lions (Puma concolor) have been studied extensively throughout their wide geographic distribution in the Western Hemisphere, but most research has been conducted at relatively small spatial scales. We used GPS telemetry data contributed by researchers in 16 study areas throughout California to advance understanding of mountain lion spatial ecology. First, we investigated multi-scale resource selection of mountain lions relative to spatially varying risk of intentional human-caused mortality associated with livestock depredation management. We show that individuals that proactively avoided mortality risk when selecting home ranges were able to relax their avoidance of risk when making resource selection …

Party Over Democracy? When Do Americans Stand By Democratic Principles, Zenat Ahmed

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

Studies show that people support their party’s representatives even when their behavior violates fundamental democratic principles for partisan gain. We test the effects of two interventions- each randomly and independently assigned—to investigate the conditions under which people will prioritize democracy over party goals. In the first intervention, we explicitly point out how an in-party politician’s behavior (e.g., banning public gatherings of their opponents) violates a core democratic principle (e.g., free assembly). The second intervention is a question-order manipulation to test if participants are less tolerant of politicians’ antidemocratic behavior when support for democratic principles is reported first. We find that …