Digital Commons Network^™

Developing Alternatives To Protect Domestic Sheep From Predation In South Africa, David L. Bergman, Nico L. Avenant, Michael J. Bodenchuk, Eddie Steenkamp

United States Department of Agriculture Wildlife Services: Staff Publications

South Africa has approximately 8,000 commercial small livestock farms and 5,800 communal/subsistence farmers throughout the country. Reported rates of small livestock loss to predation range from 3-13% and 0.5-19% from communal farming areas. A range of predators exist on the African continent, but in southern Africa major livestock losses are primarily due to black-backed jackal and caracal. South Africans have been managing caracals and jackals for over 300 years with no elimination of predation. During the aforementioned time frame, producers have used and/or developed a number of techniques including lethal, nonlethal, and integrated predator damage management to address predation losses. …

First Association Of Scale Insects (Hemiptera: Diaspididae) With Salacia Crassifolia (Mart. Ex Schult.) G. Don. (Celastraceae), Marcelo Tavares De Castro, Sandro Coelho Linhares Montalvão, Vera R. S. Wolff, Rose Gomes Monnerat

Insecta Mundi

Salacia crassifolia (Mart. ex Schult.) G.Don., (Celastraceae) is a native species of shrub/tree highly ap­preciated in Brazil for its fruits and medicinal properties. Scale insects have never been reported associated with S. crassifolia; nevertheless, this paper describes the occurrence of two diaspidids on S. crassifolia leaves in Brazil. Three mature trees were inspected in February and March 2018 and scale insect samples were collected and pre­served in 70% alcohol, then mounted and identified under an optical microscope. Two species of scale insects were found associated with this plant, Pseudoparlatoria argentata Hempel and Melanaspis aristotelesi Lepage and Gi­annotti, both from …

Subsequent Spelling Cavolinii For Scarabaeus Cavolini Petagna, 1792 (Currently Copris Hispanus Cavolinii) To Be Maintained As Prevailing Usage (Coleoptera: Scarabaeoidea: Scarabaeidae: Coprini), Stefano Ziani

Insecta Mundi

The specific name in Scarabaeus cavolinii Petagna, 1792 (currently Copris hispanus ssp. cavolinii) (Coleoptera: Scarabaeidae: Coprini) is an incorrect subsequent spelling—the original spelling is cavolini—but, because of its prevailing usage here documented, is to be preserved.

In 1792, Petagna described Scarabaeus cavolini (Coleoptera: Scarabaeidae) as a tribute to the famous Italian biologist Filippo Cavolini (1756–1810), whose Latinized name was Philippus Cavolinus (Petagna 1785; Smith 1804). To dedicate the new species to him, Petagna (1792) declined the name to the genitive singular case of the second Latin declension, which is Cavolini.

The original spelling “cavolini” was …

Psychological And Neurobiological Mechanisms Underlying The Decline Of Maternal Behavior, Ming Li

Department of Psychology: Faculty Publications

The maternal behavior decline is important for the normal development of the young and the wellbeing of the mother. This paper reviews limited research on the factors and mechanisms involved in the rat maternal behavior decline and proposes a multi-level model. Framed in the parent-offspring conflict theory (an ultimate cause) and the approach-withdrawal model (a proximate cause), the maternal behavior decline is viewed as an active and effortful process, reflecting the dynamic interplay between the mother and her offspring. It is instigated by the waning of maternal motivation, coupled with the increased maternal aversion by the mother in responding to …

Insights Into The Adsorption Of Pb(Ii) Over Trimercapto-S-Triazine Trisodium Salt-Modified Lignin In A Wide Ph Range, Qiaorui Wang, Chunli Zheng, Fei He, Yuan Yao, Tian C. Zhang, Chi He

Department of Civil and Environmental Engineering: Faculty Publications

A novel fabrication method for modifying alkaline lignin (AL) was reported, in which trimercapto-s-triazine trisodium salt was used as a modifier to tune surface properties of AL. Molecular structure of modified AL (FAL) was determined by 3D-EEM, synchronous fluorescence, FTIR, 13C MAS NMR and XPS. Two-dimensional correlation spectroscopy and electron localization function demonstrated that both of electrostatic and coordinate bonds formed between these functional groups and Pb(II) at higher pH of 3.0 to 6.0 while only coordinate bond at lower pH of 0.2 to 1.2. The higher the solution pH was, the stronger the adsorption capacity of FAL had. The …

Aspects Of Character: Quantitative Evidence And Fictional People, Jonathan Cheng

Department of English: Dissertations, Theses, and Student Research

“Aspects of Character” uses quantitative evidence to trace new timelines in the literary history of characterization. The guiding premise of this work is that digital libraries and mathematical perspectives can shed new light on the practices used to configure fictional people. Using texts from the nineteenth to twenty-first century, this dissertation analyzes how different aspects of characters have transformed throughout history, coordinating quantitative experiments with the critical perspectives of literary scholars. This project begins by analyzing the characterization used in works of fiction that were reviewed by prestigious publications. This first experiment pushes back on a historical truism about “well-crafted” …

Vegetation And Large Carnivore Responses In An Encroached Landscape, Hugh Ellerman

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

The Great Plains biome supports biodiverse plant and animal communities, provides a wide array of ecosystem services, and is depended upon by agricultural economies. Despite these advantages, however, Great Plains grasslands are becoming increasingly degraded by landcover changes due to agriculture and urbanization, fragmentation, loss of biodiversity and invasion by woody species. Woody encroachment is a biome-wide threat to Great Plains plant and wildlife communities and is therefore managed, though with variable success. I investigated the efficacy of invasive tree management projects in restoring tallgrass prairies in southeast Nebraska and regenerating oak gallery forests along the Niobrara River. I measured …

Climate Change Impacts The Subsurface Transport Of Atrazine And Estrone Originating From Agricultural Production Activities, Renys Enrique Barrios, Simin Akbariyeh, Chuyang Liu, Khalid Muzamil Gani, Margarita T. Kovalchuk, Xu Li, Yusong Li, Daniel D. Snow, Zhenghong Tang, John Gates, Shannon L. Bartelt-Hunt

Nebraska Water Center: Faculty Publications

Climate change will impact soil properties such as soil moisture, organic carbon and temperature and changes in these properties will influence the sorption, biodegradation and leaching of trace organic contaminants to groundwater. In this study, we conducted a modeling case study to evaluate atrazine and estrone transport in the subsurface under current and future climate conditions at a field site in central Nebraska. According to the modeling results, in the future, enhanced evapotranspiration and increased average air temperature may cause drier soil conditions, which consequently reduces the biodegradation of atrazine and estrone in the water phase. On the other hand, …

Retention Of Swine Slurry Constituents In Soil And Crop Residue As Affected By Setback Distance, John E. Gilley, Shannon L. Bartelt-Hunt, Kent M. Eskridge, Xu Li, Amy M. Schmidt, Daniel D. Snow

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Setbacks are prescribed distances from surface waters within which manure application is not allowed. Little information is available concerning the retention of swine slurry constituents in soil and crop residue materials within setback areas. This study was conducted to measure the retention of selected constituents within a setback area following the upslope application of swine slurry and the introduction of simulated rainfall. The no-till cropland site had a slope gradient of 4.9% and a mean winter wheat residue cover of 7.73 Mg ha−1 . Soil and vegetative samples were collected on 3.7 m wide by 23.2 m long plots with …

Vertebrates On The Brink As Indicators Of Biological Annihilation And The Sixth Mass Extinction, Gerardo Ceballos, Paul R. Ehrlich, Peter H. Raven

Harold W. Manter Laboratory of Parasitology: Library Materials

The ongoing sixth mass species extinction is the result of the destruction of component populations leading to eventual extirpation of entire species. Populations and species extinctions have severe implications for society through the degradation of ecosystem services. Here we assess the extinction crisis from a different perspective. We examine 29,400 species of terrestrial vertebrates, and determine which are on the brink of extinction because they have fewer than 1,000 individuals. There are 515 species on the brink (1.7% of the evaluated vertebrates). Around 94% of the populations of 77 mammal and bird species on the brink have been lost in …

Rfia: An R Package For Estimation Of Forest Attributes With The Us Forest Inventory And Analysis Database, Hunter Stanke, Andrew O. Finley, Aaron S. Weed, Brian F. Walters, Grant M. Domke

United States National Park Service: Publications

Forest Inventory and Analysis (FIA) is a US Department of Agriculture Forest Service program that aims to monitor changes in forests across the US. FIA hosts one of the largest ecological datasets in the world, though its complexity limits access for many potential users. rFIA is an R package designed to simplify the estimation of forest attributes using data collected by the FIA Program. Specifically, rFIA improves access to the spatiotemporal estimation capacity of the FIA Database via space–time indexed summaries of forest variables within user-defined population boundaries (e.g., geographic, temporal, biophysical). The package implements multiple design-based estimators, and has …

Changing Grid Premiums And Discounts Due To Underlying Changes In The Fed Cattle Industry, Elliott James Dennis

Extension Farm and Ranch Management News

First paragraph:

In recent weeks there has been increased attention given to the role of Alternative Marketing Arrangements, commonly referred to as AMA's, in the fed cattle market. The use of these AMA’s varies greatly by region and some of the more common AMA’s used include grid and formula pricing. AMA’s pay producers premiums and discounts from a ‘base price’ based on a combination of the yield grade, quality grade, and weight of dressed cattle. It is common for the negotiated cash price to serve as the ‘base price’ for AMA’s using the either the geographical region or the 5-market …

Precolumbian Textile Conference Viii / Jornadas De Textiles Precolombinos Viii, Lena Bjerregaard, Ann H. Peters

Zea E-Books Collection

Contents: Preface — Lena Bjerregaard & Ann Hudson Peters

Archaeological textiles – Textiles arqueológicos – Textiles archéologiques: • 1, Recontextualizando el patrimonio arqueológico: los textiles paracas descubiertos por Engel en Cabezas Largas — Jessica Lévy Contreras • 2, Two-headed serpents and rayed heads: Precedents and reinterpretations in Paracas Necropolis imagery — Ann H. Peters • 3, Representaciones textiles en los iconos de la litoescultura Tiwanaku: significado y distribución — Carolina Agüero & Arturo Martínez • 4, Middle Horizon textiles from Chimu Capac, Supe Valley, Peru — Amy Oakland • 5, Una prenda triangular con plumas en la colección del museo …

Biomedcentral (Bmc) 2019 – 2020, Anqi Shi, Heather Morrison

Copyright, Fair Use, Scholarly Communication, etc.

Key points

• Open access commercial publishing pioneer BMC is now wholly owned by a private company with a portfolio including lines of business that derive revenue from journal subscriptions, book sales, and textbook sales and rentals
• Two former BMC fully OA journals, listed in DOAJ from 2014 – 2018 as having CC-BY licenses, are now hybrid and listed on the Springer website and have disappeared from the BMC website
• 67% of BMC journals with APCs in 2019 and 2020 increased in price and 11% decreased in price.
• Journals with price increases had a higher average APC in 2019, i.e. more …

Impact Of Covid-19 On Demand For Distillers Grains From Livestock Operations, Daniel Gertner, Elliott James Dennis

Cornhusker Economics

Government and industry responses to COVID-19 cases have created a variety of unique situations in the agriculture industry. "Stay-at-home" orders forced consumers to be homebound, increasing the demand for food in grocery stores while reducing the need for food in restaurants. These caused a series of rapidly changing supply and demand conditions along the livestock supply chain. Meat destined for restaurants need to be repacked and reprocessed to make it compatible to sell in grocery stores. Meat packing plants continued to try to process harvest-ready animals, but a growing number of positive cases among plant workers forced idling, reduced plant …

Assessing Outcomes Of Genetic Selection Panels To Predict Marbling In Crossbred Beef Cattle, Tanya M. Weber, B J. Buseman, James A. Nasados, Jessica M. Lancaster, Jessie B. Van Buren, Jaxon H. Smart, Phillip D. Bass, Gordon K. Murdoch, Kizkitza Insausti, Michael J. Colle

Department of Animal Science: Faculty Publications

The objective of this study was to evaluate the effectiveness of genetic panel marbling indexes [Igenity (IT) and PredicGEN (PG)] to predict marbling and tenderness of crossbred cattle. Steers (n = 23) were harvested at the University of Idaho Meat Science Laboratory, and blood samples were submitted to Neogen and Zoetis for genetic panel analysis. Forty-eight hours postharvest, one boneless strip loin was collected from each carcass, and six 2.54-cm thick steaks were cut from each strip loin. Steaks were aged for 14 and 21 d and assigned to consumer sensory evaluation or Warner–Bratzler Shear Force (WBSF) analysis. Results were …

La Momia De Marburg: Su Recontextualización A Través Del Ajuar Y Ofrenda Textil, Isabel Martínez Armijo, Anna-Maria Begerock, Mercedes González

PreColumbian Textile Conference VIII / Jornadas de Textiles PreColombinos VIII (2019)

El análisis textil es un aporte fundamental para la recontextualización de individuos momificados y dentro de este contexto un caso interesante es el de la momia exhibida en el Museo del Instituto de Anatomía de la Universidad de Philipps, Marburg, Alemania. Este individuo, de sexo masculino, confirmado por la tomografía computarizada realizada en el año 2018, y acompañado de un ajuar textil y diversas ofrendas, se encuentra en relativas buenas condiciones de conservación y, de acuerdo a la escasa información disponible, habría ingresado a dicha institución alrededor de 1892-1893 procedente de la ciudad de Arica. En este trabajo se presentan …

Las Relaciones Interculturales Vistas A Través De Los Textiles Del Cerro La Horca, Durante El Periodo Intermedio Tardío Y Horizonte Tardío, Valle Del Fortaleza – Perú, Arabel Fernández L., Luis Valle A.

PreColumbian Textile Conference VIII / Jornadas de Textiles PreColombinos VIII (2019)

A raíz de la ejecución del Proyecto de Rescate Arqueológico Parcial en Cerro la Horca, fue posible el registro de diversas evidencias materiales las cuales han puesto de manifiesto nuevas interpretaciones sobre la ocupación del sitio. La recuperación de material textil y su respectivo análisis ha permitido identificar y definir diversos estilos textiles, entre los que podemos citar: Lambayeque, Huarmey, Chancay, Serrano, Chimú e Inca los mismos que revelan la compleja y variada interacción socio-cultural de los diversos grupos étnicos que convivieron en esta parte baja del valle del Fortaleza, durante el Periodo Intermedio Tardío y Horizonte Tardío.

During the …

Two-Headed Serpents And Rayed Heads: Precedents And Reinterpretations In Paracas Necropolis Imagery, Ann H. Peters

PreColumbian Textile Conference VIII / Jornadas de Textiles PreColombinos VIII (2019)

The Necropolis of Wari Kayan and other tombs of the Paracas Necropolis mortuary tradition present an astonishing diversity of textile styles, and an even greater diversity of imagery. More than 100 different motifs can be distinguished and tracked among the documented mortuary contexts. While is it not likely that our sample of 45 mummy bundles includes all important variants of any particular motif, in many cases it is possible to propose a sequence of reinterpretations of a key icon. By documenting the known assemblage of images and artifacts we can perceive what icons and styles are predominant, recurrent or unusual. …

Ancient Peruvian Textiles In The Vatican Museums And Their Link To The Musée Du Trocadéro Collections, Jean-François Genotte

PreColumbian Textile Conference VIII / Jornadas de Textiles PreColombinos VIII (2019)

The Vatican Museums keep a small collection of about sixty textile fragments mostly Lambayeque, Chimu and Chancay dating back to Late Intermediate Period. Unfortunately, the archaeological provenance of these items is not known. This paper offers a first overview of the history of the collection, describing its contents and, in more details, its most interesting fabrics. We will then suggest that some fragments of the Vatican collection might have been part of textiles once kept in the Musée du Trocadéro, and nowadays preserved in the Quai Branly Museum in Paris.

Los Museos del Vaticano conservan una pequeña colección de unos …

Colorantes Presentes En Mochilas Ika De La Colección Etnográfica Del Världskulturmuseet (Antiguo Museo Etnografico) En Gotemburgo, Suecia, Realizada Por Gustav Bolinder, Beatriz Devia, Marianne Cardale De Schrimpff

PreColumbian Textile Conference VIII / Jornadas de Textiles PreColombinos VIII (2019)

El etnólogo sueco, Gustav Bolinder en los años 1914-1921 realizó una colección extensa de objetos elaborados por grupos indígenas del norte de Colombia, incluyendo a los Ika y otras etnias de la Sierra Nevada de Santa Marta. La colección incluye numerosas mochilas Ika. Estas son en fique, algodón y lana, para diferentes usos. Tanto los motivos de los diseños como los colorantes y las fibras utilizadas expresan cierto grado de sincretismo. Aunque la mayoría de los diseños son tradicionales, se observa algunos animales domésticos y la cruz, al parecer resultado de la influencia de la misión de padres capuchinos establecida …

Recontextualizando El Patrimonio Arqueológico: Los Textiles Paracas Descubiertos Por Engel En Cabezas Largas, Jessica Lévy Contreras

PreColumbian Textile Conference VIII / Jornadas de Textiles PreColombinos VIII (2019)

Resumen El archivo de Frédéric Engel, arqueólogo suizo quien trabajó en la costa sur del Perú entre los años 1950 y 1960, representa un patrimonio documental importante conservado en el Museo Nacional de Antropología, Biodiversidad, Agricultura y Alimentación (MUNABA) de la Universidad Nacional Agraria La Molina en Lima. Gracias a la revisión de los registros gráficos y fotográficos de las excavaciones realizadas en Cabezas Largas, sitio ubicado en la Península de Paracas, y particularmente de los materiales hallados en la tumba T.27, este artículo presenta los principales textiles asociados a la parafernalia ritual de siete fardos funerarios para tratar de …

El Tapiz Colonial Con Tocapus Del Museo Nacional De Arqueología, Antropología E Historia Del Perú, Mónica Solórzano Gonzales

PreColumbian Textile Conference VIII / Jornadas de Textiles PreColombinos VIII (2019)

Se estudia en este texto un extraordinario tapiz que resalta por una decoración que combina símbolos incaicos, con aspecto de tocapus, con una cruz cristiana. Forma parte de una investigación mayor dedicada al tapiz andino colonial próxima a divulgarse. Actualmente, no se conoce otro ejemplar semejante en el Perú ni en el extranjero y probablemente se trata de uno de los tapices coloniales más antiguos. Tuvimos la fortuna de darlo a conocer en los seminarios del Doctorado del Programa de Estudios Andinos de la Pontificia Universidad Católica del Perú y en otros eventos desde el año 2014. Se halla en …

The Pre-Columbian Textile Collection Of The German Textile Museum Krefeld, Katalin Nagy

PreColumbian Textile Conference VIII / Jornadas de Textiles PreColombinos VIII (2019)

The German Textile Museum in Krefeld houses a considerable collection of pre-Columbian textiles. Most originate from graves in the narrow arid area of the Peruvian coast. The original aim was to build an assemblage with the pedagogical and methodological intention of presenting a broad range of very different textile techniques in the education for the future textile workers of the industry in said region. With this intention in mind samples were gathered, and soon a few samples turned into an impressive collection in which almost all established pre-Columbian cultures and periods of the area of the Central Andes are represented. …

Colecciones Textiles Etnográficas Del Gran Chaco Sudamericano Del Museo Etnográfico “J. B. Ambrosetti” Y El Estudio De Su Materialidad: Un Desafío A La Mirada Occidental Sobre Los Otros No-Occidentales, Mariana Alfonsina Elías

PreColumbian Textile Conference VIII / Jornadas de Textiles PreColombinos VIII (2019)

El Museo Etnográfico “J. B. Ambrosetti” (Facultad de Filosofía y Letras, Universidad de Buenos Aires) guarda en su acervo un conjunto amplio, diverso y poco conocido de producciones textiles de distintos pueblos originarios del Gran Chaco Sudamericano. Las mismas han ingresado a la institución entre fines del siglo XIX y las primeras cuatro décadas del siglo XX. El estudio que vengo desarrollando de varios aspectos de la materialidad de los objetos textiles que conforman dichas colecciones- materia prima, técnicas/ estructuras textiles, diseños, colores, evidencias de uso, etc.- ha implicado la necesaria problematización de nuestra mirada occidental y de nuestras representaciones …

Middle Horizon Textiles From Chimu Capac, Supe Valley, Peru, Amy Oakland

PreColumbian Textile Conference VIII / Jornadas de Textiles PreColombinos VIII (2019)

This article presents an overview of the textiles Max Uhle collected between November 4 and December 3, 1904 in the Middle Horizon cemetery at Chimu Capac in the Supe Valley, Peru. The total collection of objects numbers over 830 with 278 textiles including woven fragments, complete garments, woven and painted pouches, and over 155 painted textiles. The article discusses a sample of Chimu Capac textiles included in Uhle’s Supe field Notebook 67, in his hand-written Supe report, and textiles listed in the Supe Berkeley catalog. The Chimu Capac textiles compare with collections of Middle Horizon funerary objects made in coastal …

Ari: The Automated R Instructor, Sean Kross, Jeffrey T. Leek, John Muschelli

The R Journal

We present the ari package for automatically generating technology-focused educational videos. The goal of the package is to create reproducible videos, with the ability to change and update video content seamlessly. We present several examples of generating videos including using R Markdown slide decks, PowerPoint slides, or simple images as source material. We also discuss how ari can help instructors reach new audiences through programmatically translating materials into other languages.

Nebline, June/July 2020

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Top 5 Ag Topics From 5 Years

7 Tips for Successfully Baking as a Family

Recipe of the Month

Timing Your Fruit Harvesting Apples, Pears & Plums

Paper Wasps and Yellow Jackets

Severe Weather Preparedness and COVID-19

Time to Look for Bagworms

Garden Guide: What to Do This Month

5 Tips for Working Remotely from Home and Caring for Children During COVID-19

HEART OF 4-H VOLUNTEER AWARD: Grace Kim

HEART OF 4-H VOLUNTEER AWARD: Greater Lincoln Obedience Club

4-H/FFA Livestock Booster Club Scholarships Due July 6

Video Companion Animal (and Cat and Pet Rabbit) Showmanship Entries Due Aug. 10

Horse …

Precolumbian Textile Conference Viii / Jornadas De Textiles Precolombinos Viii, Lena Bjerregaard, Ann H. Peters

PreColumbian Textile Conference VIII / Jornadas de Textiles PreColombinos VIII (2019)

Contents: Preface — Lena Bjerregaard & Ann Hudson Peters

Archaeological textiles – Textiles arqueológicos – Textiles archéologiques: • 1, Recontextualizando el patrimonio arqueológico: los textiles paracas descubiertos por Engel en Cabezas Largas — Jessica Lévy Contreras • 2, Two-headed serpents and rayed heads: Precedents and reinterpretations in Paracas Necropolis imagery — Ann H. Peters • 3, Representaciones textiles en los iconos de la litoescultura Tiwanaku: significado y distribución — Carolina Agüero & Arturo Martínez • 4, Middle Horizon textiles from Chimu Capac, Supe Valley, Peru — Amy Oakland • 5, Una prenda triangular con plumas en la colección del …

Signos Comunes En Los Textiles Andinos Y Los Mesoamericanos, Victòria Solanilla

PreColumbian Textile Conference VIII / Jornadas de Textiles PreColombinos VIII (2019)

Entre los recientes estudios sobre textiles Andinos, comienza a ser frecuente encontrar quienes se dedican a describir además de las técnicas, sus iconografías. Como eran sociedades ágrafas, nos hace pensar que con aquellas imágenes nos quisieron dejar su historia y pensamiento. En el caso de Mesoamérica, se podría decir lo mismo de las técnicas e imágenes, pero en este caso, las sociedades que los tejieron sí tenían manera de comunicarse a través de sus lenguajes escritos. No se han conservado tantos tejidos a causa del clima por las condiciones no favorables para la conservación de materiales orgánicos, pero tenemos muchos …