Digital Commons Network^™

Resource Selection At Homesites By Wolves And Eastern Coyotes In A Canis Hybrid Zone, Teresa Oliveira, John F. Benson, Connor Thompson, Brent R. Patterson

School of Natural Resources: Faculty Publications

We modeled resource selection by wolves (Canis spp.), eastern coyotes (C. latrans), and admixed canids during the pup-rearing season at den and rendezvous sites (collectively, homesites) within a largely unprotected landscape proposed as the recovery zone for federally and provincially threatened eastern wolves (C. lycaon) in Ontario, Canada. Overall, canids selected wetlands, while avoiding secondary roads and open-structure rock-grass habitat patches. Packs with greater wolf ancestry selected wetlands and tertiary roads more strongly, while avoiding mixed conifer-hardwood forests. Contrary to our prediction, canids with greater coyote ancestry did not establish homesites closer to roads, which likely mitigated their risk of …

Developing A Model Of Graduate Teaching Assistant Teacher Efficacy: How Do High And Low Teacher Efficacy Teaching Assistants Compare?, Cody R. Smith, Cesar Delgado

School of Natural Resources: Faculty Publications

Graduate teaching assistants (TAs) are often responsible for teaching introductory courses to undergraduate science, technology, engineering, and mathematics students. The TAs are usually novices at teaching, and an important factor in their resilience and persistence in the face of inevitable challenges is self-efficacy. Little is known about what affects TA teacher efficacy or whether and how high- and low-efficacy TAs differ in their development as teachers. Bridging these gaps in the literature will inform best practices in developing and implementing professional development (PD) for TAs. Using a mixed-methods sequential exploratory research design, this study found differences in high- and low-efficacy …

A New Cryptic Species Of Metallic Chrysina Kirby (Coleoptera: Scarabaeidae: Rutelinae) From Western Honduras, José Monzón Sierra, David C. Hawks

Insecta Mundi

A new species of Chrysina Kirby (Coleoptera: Scarabaeidae: Rutelinae), Chrysina porioni Monzón and Hawks, is described from the Sierra del Merendón west of San Pedro Sula, Honduras. This species is very similar to C. ericsmithi (Monzón and Cano), with which it has long been confused.

Resumen. Se describe una nueva especie de Chrysina Kirby (Coleoptera: Scarabaeidae: Rutelinae), Chrysina porioni Monzón y Hawks, de la Sierra del Merendón al oeste de San Pedro Sula, Honduras. Esta especies es muy parecida a C. ericsmithi (Monzón y Cano), con la cuál se ha confundido por mucho tiempo.

Effect Of Method Of Drying Piglets At Birth On Rectal Temperature Over The First 24 H After Birth, Katherine D. Vande Pol, Andres F. Tolosa, Caleb M. Shull, Catherine B. Brown, Stephan A.S. Alencar, Michael Ellis

Roman L. Hruska U.S. Meat Animal Research Center: Reports

Piglets are born wet, and evaporation of that moisture decreases body temperature, increasing the risk of mortality. The objective of this study was to compare the effect of two commercially applicable methods for drying piglets at birth on piglet rectal temperature over 24 h after birth. The study was carried out in standard commercial farrowing facilities with 52 litters, using a completely randomized design with three Drying Treatments: Control (not dried); Desiccant (dried at birth using a cellulose-based desiccant); Paper Towel (dried at birth using paper towels). Litters were randomly allotted to treatments at the birth of the first piglet. …

Effect Of Drying And/Or Warming Piglets At Birth On Rectal Temperature Over The First 24 H After Birth, Katherine D. Vande Pol, Andres F. Tolosa, Caleb M. Shull, Catherine B. Brown, Stephan A. S. Alencar, Michael Ellis

Roman L. Hruska U.S. Meat Animal Research Center: Reports

Piglets experience a rapid decrease in body temperature immediately after birth, increasing the risk of mortality. The objective of this study was to determine the effect of drying and/or warming piglets at birth on rectal temperature over the first 24 h after birth. The study was carried out at a commercial sow facility using a completely randomized design with four treatments (applied to piglets at birth): Control (no drying or warming), Desiccant (dried using a desiccant), Warming Box (placed in a box under a heat lamp for 30 min), and Desiccant + Warming Box (both dried and warmed as above). …

Center For Grassland Studies, Volume 26, Issue 3, Fall 2020

Center for Grassland Studies: Newsletters

Nebraska Grazing Conference Review

Director’s Column

Screening for Rangeland Transitions

Grassland Listening Sessions

Cow Milk Production Influence on Behavioral and Grazing Factors Affecting Calf Performance

PGA Golf Management “Launches” a New Podcast

2020 Leu Lecturer: Sam Fuhlendorf Speaks Nov. 9

Managing Pasture Production Risk

2020 Nebraska Section of the Society for Range Management Annual Meeting Goes Virtual

Asymmetric Benefits Of A Heterospecific Breeding Association Vary With Habitat, Conspecific Abundance And Breeding Stage, Rose J. Swift, Michael J. Anteau, Erin A. Roche, Mark H. Sherfy, Dustin L. Toy, Megan M. Ring

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Heterospecific breeding associations may benefit individuals by mitigating predation risk but may also create costs if they increase competition for resources or are more easily detectable by predators. Our understanding of the interactions among hetero- and conspecifics is often lacking in mixed species colonies. Here, we test how the presence of hetero- and conspecifics influence nest and chick survival for two listed (under the U.S. Endangered Species Act) migratory species breeding on the Missouri River, USA. We monitored 2507 piping plover Charadrius melodus nests and 3245 chicks as well as 1060 least tern Sternula antillarum nests and 1374 chicks on …

A Moment Of Science Club, Alexis Gravagna, Dawson Eccles

Honors Program: Expanded Learning Clubs

A Moment of Science Club allows the youth to learn about science concepts through engaging in interesting science experiments.

Tools, Techniques And Teamwork: Transferring New Technologies For Wildlife Management, Conservation And Economic Development, John Eisemann, Gail Keirn

United States Department of Agriculture Wildlife Services: Staff Publications

Did you ever wonder who invented radio telemetry? Or breakaway snares? What about the bird repellent methyl anthranilate or the livestock protection collar? These and many other tools used in wildlife damage management resulted from creative thinking by biologists, technicians, researchers and managers working to solve complex wildlife issues. Over the past 90 years, these “aha moments” within the U.S. Department of Agriculture’s Wildlife Services program have ranged from developing novel scare devices, traps and vaccines to exploiting an animal’s visual capabilities to stop unwanted behaviors. Once discovered, these unique ideas may lead to practical, feasible and cost-effective wildlife damage …

The Dynamic Changes In Cytokine Responses In Covid-19: A Snapshot Of The Current State Of Knowledge, Maja Buszko, Jung Hyun Park, Daniela Verthelyi, Ranjan Sen, Howard A. Young, Amy S. Rosenberg

United States Public Health Resources

The role of cytokines in COVID-19” online symposium was presented on 18 June 2020 by the NIH/FDA Immunology and Cytokine Interest Groups and was purposed to discuss our rapidly changing understanding of COVID-19-related cytokine responses in different stages of infection, including the etiologies, downstream consequences and possible mitigation strategies.

The symposium was opened by Anthony Fauci, Director of the National Institute of Allergy and Infectious Diseases at the US National Institutes of Health (NIAID, NIH), and Janet Woodcock, Director of the Center of Drug Evaluation and Research, Food and Drug Administration (CDER, FDA) and currently leading the therapeutics component of …

Perforin-Deficient Car T Cells Recapitulate Late-Onset Inflammatory Toxicities Observed In Patients, Kazusa Ishii, Marie Pouzolles, Christopher D. Chien, Rebecca A. Erwin-Cohen, M. Eric Kohler, Haiying Qin, Haiyan Lei, Skyler Kuhn, Amanda K. Ombrello, Alina Dulau-Florea, Michael A. Eckhaus, Haneen Shalabi, Bonnie Yates, Daniel A. Lichtenstein, Valérie S. Zimmermann, Taisuke Kondo, Jack F. Shern, Howard A. Young, Naomi Taylor, Nirali N. Shah, Terry J. Fry

United States Public Health Resources

Late-onset inflammatory toxicities resembling hemophagocytic lymphohistiocytosis (HLH) or macrophage activation syndrome (MAS) occur after chimeric antigen receptor T cell (CAR T cell) infusion and represent a therapeutic challenge. Given the established link between perforin deficiency and primary HLH, we investigated the role of perforin in anti-CD19 CAR T cell efficacy and HLH-like toxicities in a syngeneic murine model. Perforin contributed to both CD8+ and CD4+ CAR T cell cytotoxicity but was not required for in vitro or in vivo leukemia clearance. Upon CAR-mediated in vitro activation, perforin-deficient CAR T cells produced higher amounts of proinflammatory cytokines compared with WT CAR …

Dynamics Of Genomic And Immune Responses During Primary Immunotherapy Resistance In Mismatch Repair–Deficient Tumors, Nobuyuki Takahashi, Vinodh N. Rajapakse, Lorinc Pongor, Suresh Kumar, Camille Tlemsani, Rebecca Erwin-Cohen, Howard A. Young, Stephen Hewitt, Jun S. Wei, Javed Khan, Alejandro V. Villarino, Jane B. Trepel, Anish Thomas

United States Public Health Resources

Mismatch repair–deficient (dMMR) cancers generate a substantial number of immunogenic neoantigens, rendering them sensitive to immunotherapy. Yet, there is considerable variability in responses, and roughly one-half of dMMR cancers are refractory to immunotherapy. Here we study a patient with dMMR lung cancer refractory to immunotherapy. The tumor exhibited typical dMMR molecular features, including exceptionally high frameshift insertions and deletions (indels). Despite the treatment inducing abundant intratumoral T-cell infiltrates, it failed to elicit tumor regression, pointing to the T cells lacking cytotoxic activity. A post-treatment tumor demonstrated compound heterozygous frameshift deletions located upstream of the kinase domain in the gene encoding …

Glitched Metaphors: Dysfunction In Hand-Woven Digital Jacquard, Gabe Duggan

Textile Society of America: Symposium Proceedings

This presentation demonstrates various ways in which the TC1 has supported my work’s exploration of tension, balance, and precarity. By embracing and pushing expectations of traditional fiber work, these weavings question inequalities within contemporary performances of gender and exhibitions of power. My work on the TC1/TC2 digital jacquard loom has been primarily tethered to one specific machine with which I have shared a personal past and future for just over a decade. Through this technology I have built and negated tension, challenging a broad range of power dynamics. My work with this TC1 seeks to exploit and balance this technology …

Teaching Certificate Redesign: Making A Flexible Program For Future Faculty, Kate Z. Williams, Lauren E. Margulieux, G. David Lawrence

To Improve the Academy: A Journal of Educational Development

Higher education teaching certificate programs can improve graduate students’ and postdoctoral scholars’ teaching while preparing them for their future roles as faculty, providing a multi-tiered benefit to universities’ teaching goals. This article documents the decision points and initial success of a redesign of one such teaching certificate program.” As part of the redesign process, 10 universities’ programs were reviewed and used as a benchmark. The programs’ learning objectives and assessments, along with their connections to the literature, are discussed in detail. A new flexible pathway through the certificate program emerged, tapping into courses, workshops, and online resources for content delivery, …

New Records Document Cystiphora Sonchi (Vallot) (Diptera: Cecidomyiidae) And Associated Parasitoids (Hymenoptera) In The Continental United States, Louis S. Hesler, Michael W. Gates, Eric A. Beckendorf

Insecta Mundi

A gall midge, Cystiphora sonchi (Vallot, 1827) (Diptera: Cecidomyiidae), is reported for the first time in the continental United States of America from the states of Minnesota, North Dakota, and South Dakota. The gall midge is an obligate parasite of Sonchus L., including perennial sowthistle, Sonchus arvensis L., a weed that was the impetus for earlier releases of C. sonchi as a biological control in Canada. Patches of S. arvensis were commonly infested with C. sonchi, and often leaves were densely galled. Dissections of galled leaves led to the novel finding of multiple C. sonchi larvae in some individual …

Development Of A Faculty Appreciation Of Pedagogy Scale, Carol A. Hurney, Jordan D. Troisi, Lori H. Leaman

To Improve the Academy: A Journal of Educational Development

Evidencing the value of programs and services challenges educational developers to measure a range of outcomes. While direct measures of faculty use of effective teaching behaviors and student learning are desirable, these methods are time consuming and resource intensive. We provide a scale that is easy to deploy and can be adapted to different programs. Our psychometrically sound scale measures one facet of faculty learning about teaching—appreciation of pedagogy. The scale measures awareness, knowledge integration, emotions, beliefs, and self-reported behaviors related to the appreciation of pedagogy. We also examine scale correlates, including teaching identity, confidence, and control.

Tell Me More About Alex: Helping Instructors Uncover And Mitigate Their Implicit Biases, Cait S. Kirby, Heather N. Fedesco

To Improve the Academy: A Journal of Educational Development

All instructors bring a set of unconscious or implicit biases to the classroom. These biases can negatively impact the way they interact with students, thus affecting important student outcomes (for example, grades, sense of belonging). Facilitators leading programming on inclusive teaching may struggle to identify strategies they should include in sessions to help unearth and address these biases in others. We have created an activity that can be tailored to fit a variety of teaching contexts and audiences and that helps unveil implicit biases while potentially mitigating some challenges associated with participant responses to such conversations.

Coal Char Affects Soil Ph To Reduce Ammonia Volatilization From Sandy Loam Soil, Dinesh Panday, Maysoon M. Mikha, Bijesh Maharjan

Department of Agronomy and Horticulture: Faculty Publications

Ammonia (NH₃) volatilization loss adversely affects N availability in soil-plant systems, reduces crop yield, and negatively impacts environment. Char (coal combustion residue), which contains up to 293 g kg⁻¹ total C by weight, has been shown to reduce NH₃ volatilization due to its considerably high surface area and cation exchange capacity. The NH₃ loss can be greatly affected by a shift in soil pH or urea hydrolysis. A 21-d laboratory study was conducted to evaluate the effects of char on soil pH, N transformations, and subsequent NH₃ volatilization in sandy loam soil. Two …

Water Current, Volume 52, No. 3, Fall 2020

Water Current Newsletter

NWC Convenes August 3 Mini-Conference

Water and Public Safety

University Receives $5 million Gift to Create Program on Water, Climate and Health

Instability Of Glucocorticoid Metabolites In Coyote Scats: Implications For Field Sampling, Erika T. Stevenson, Eric M. Gese, Lorin A. Neuman-Lee, Susannah S. French

United States Department of Agriculture Wildlife Services: Staff Publications

Studying physiologic stress responses can assist in understanding the welfare of animals. One method of measuring the physiologic stress response is evaluating concentrations of glucocorticoid metabolites in feces. Previously, using an adrenocorticotropic hormone challenge, we found fecal glucocorticoid metabolite levels were a reliable indicator of physiologic stress response in coyotes (Canis latrans). We determine whether glucocorticoid metabolite concentrations remain stable when collecting feces over a 2-week period, a timeframe commonly used in scat surveys for wild canids. We collected feces from 6 captive coyotes maintained at the U.S. Department of Agriculture, Wildlife Services, National Wildlife Research Center, Predator …

Interplay Of Phytohormones Facilitate Sorghum Tolerance To Aphids, Sajjan Grover, Earl Agpawa, Gautam Sarath, Scott E. Sattler, Joe Louis

Department of Entomology: Faculty Publications

Key message -- Interactions among phytohormones are essential for providing tolerance of sorghum plants to aphids.

Plant’s encounter with insect herbivores trigger defense signaling networks that fine-tune plant resistance to insect pests. Although it is well established that phytohormones contribute to antixenotic- and antibiotic-mediated resistance to insect pests, their role in conditioning plant tolerance, the most durable and promising category of host plant resistance, is largely unknown. Here, we screened a panel of sorghum (Sorghum bicolor) inbred lines to identify and characterize sorghum tolerance to sugarcane aphids (SCA; Melanaphis sacchari Zehntner), a relatively new and devastating pest of sorghum in …

Economics Of Herbicide Programs For Weed Control In Conventional, Glufosinate, And Dicamba/Glyphosate-Resistant Soybean Across Nebraska, Adam M. Striegel, Kent M. Eskridge, Nevin C. Lawrence, Stevan Knezevic, Greg R. Kruger, Christopher A. Proctor, Gary Hein, Amit J. Jhala

Department of Agronomy and Horticulture: Faculty Publications

Despite widespread adoption of dicamba/glyphosate-resistant (DGR) soybean [Glycine max (L.) Merr.] in Nebraska and across the United States in recent years, economic information comparing herbicide programs with glufosinate-resistant (GLU-R) and conventional soybean is not available. The objectives of this study were to evaluate weed control efficacy, crop safety, gross profit margin, and benefit/cost ratios of herbicide programs with multiple sites of action in DGR, GLUR, and conventional soybean. Field experiments were conducted in 2018 and 2019 at three irrigated and two rain-fed locations across Nebraska, for a total of 10 site-years. Herbicides applied pre-emergence (PRE) that included herbicides with …

Changes In Lipid Profiles Of Epileptic Mouse Mode, Alicia Johnson, Ryan A. Grove, Deepak Madhavan, Cory H.T. Boone, Camila Pereira Braga, Hannah Kyllo, Kaeli K. Samson, Kristina A. Simeone, Timothy A. Simeone, Tomáš Helikar, Corrine K. Hanson, Jiri Adamec

Department of Biochemistry: Faculty Publications

Introduction Approximately 1% of the world’s population is impacted by epilepsy, a chronic neurological disorder characterized by seizures. One-third of epileptic patients are resistant to AEDs, or have medically refractory epilepsy (MRE). One non-invasive treatment that exists for MRE includes the ketogenic diet (KD), a high-fat, low-carbohydrate diet. Despite the KD’s success in seizure attenuation, it has a few risks and its mechanisms remain poorly understood. The KD has been shown to improve metabolism and mitochondrial function in epileptic phenotypes. Potassium channels have implications in epileptic conditions as they have dual roles as metabolic sensors and control neuronal excitation.

Objectives …

Introduction To Special Issue Of Irrigation Science: Improving Irrigation Management Across The Ogallala Aquifer, Usa, Allan A. Andales, Daran Rudnick, José L. Chávez

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Groundwater stored in aquifers is a major source of irrigation water for many agricultural regions that receive insufficient precipitation for crop production. In the U.S.A., the High Plains aquifer (HPA) that underlies parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming supplies irrigation water for agricultural production. The HPA underlies around 450,658 km² (174,000 mi²) of which the Ogallala aquifer is the principal geologic formation underlying 347,059 km² (134,000 mi²) (Gutentag et al. 1984). The Ogallala aquifer is primarily a water table (unconfined) aquifer with saturated thickness ranging from 0 …

The State Of Altmetrics: A Tenth Anniversary Celebration, Kathy Christian, Euan Adie, Gemma Derrick, Fereshteh Didegah, Paul Groth, Cameron Neylon, Jason Priem, Shenmeng Xu, Zohreh Zahedi, Yin-Leng Theng, Saeed-Ul Hassan, Naif R. Aljohani, Timothy D. Bowen, Vanesh M. Patel, Robin Haunschild, Lutz Bornmann, Mike Taylor, Liesa Ross, Stacy Konkiel

Copyright, Fair Use, Scholarly Communication, etc.

Altmetric’s mission is to help others understand the influence of research online.We collate what people are saying about published research in sources such as the mainstream media, policy documents, social networks, blogs, and other scholarly and non-scholarly forums to provide a more robust picture of the influence and reach of scholarly work. Altmetric works with some of the biggest publishers, funders, businesses and institutions around the world to deliver this data in an accessible and reliable format.

Contents

Altmetrics, Ten Years Later, Euan Adie (Altmetric (founder) & Overton)

Reflections on Altmetrics, Gemma Derrick (University of Lancaster), Fereshteh Didegah (Karolinska Institutet …

Two New Species Of Corynellus Bates, 1885 (Coleoptera: Cerambycidae: Cerambycinae), Antonio Santos-Silva, James E. Wappes

Insecta Mundi

Two new species of Corynellus (Coleoptera: Cerambycidae: Cerambycinae) are described: C. rebeccae Santos-Silva and Wappes, from Bolivia; and C. elianae Santos-Silva and Wappes, from Panama. A key to species of Corynellus is provided.

The Matsucoccus Cockerell, 1909 Of Florida (Hemiptera: Coccomorpha: Matsucoccidae): Potential Pests Of Florida Pines, Muhammad Z. Ahmed, Charles H. Ray, Matthew R. Moore, Douglass R. Miller

Insecta Mundi

Matsucoccus krystalae Ahmed and Miller, new species, (Hemiptera: Coccomorpha: Matsucoccidae) is described based on morphological characters of adult females and third-instar males. We designate the lectotype of Matsucoccus alabamae Morrison. Matsucoccus alabamae Morrison and M. gallicolus Morrison are redescribed, also based on adult females and third-instar males. Detailed illustrations and descriptions are presented for each species and an identification key for the five species occurring in the eastern U.S. is provided. Analysis of 18S, 28S D2/D3, and 28S D10 loci were performed to support morphological determination. Barcodes using 5′ COI of M. alabamae and M. krystalae were generated, the …

A Functional K+ Channel From Tetraselmis Virus 1, A Member Of The Mimiviridae, Kerri Kukovetz, Brigitte Hertel, Christopher R. Schvarcz, Andrea Saponaro, Mirja Manthey, Ulrike Burk, Timo Greiner, Grieg F. Steward, James L. Van Etten, Anna Moroni, Gerhard Thiel, Oliver Rauh

Nebraska Center for Virology: Faculty Publications

Potassium ion (K+) channels have been observed in diverse viruses that infect eukaryotic marine and freshwater algae. However, experimental evidence for functional K+ channels among these alga-infecting viruses has thus far been restricted to members of the family Phycodnaviridae, which are large, double-stranded DNA viruses within the phylum Nucleocytoviricota. Recent sequencing projects revealed that alga-infecting members of Mimiviridae, another family within this phylum, may also contain genes encoding K+ channels. Here we examine the structural features and the functional properties of putative K+ channels from four cultivated members of Mimiviridae. While all four proteins contain variations …

New State And Island Records Of Coccinellidae (Coleoptera) In Hawai‘I, Usa, Louis S. Hesler, William D. Perreira, Dana Anne Yee, Joshua H.S. Silva

Insecta Mundi

Three new records of Coccinellidae (Coleoptera) are recorded within the state of Hawai‘i, USA. Diomus roseicollis (Mulsant, 1853) is newly recorded from the state based on four specimens collected on the island of O‘ahu. Cycloneda sanguinea sanguinea (Linnaeus, 1763) and Brumoides suturalis (Fabricius, 1789), both already established in the state, are newly recorded from the island of Hawai‘i. Additional sampling is recommended to determine the distribution of D. roseicollis within the island of O‘ahu. Further surveys are warranted to determine particular habitats and prey for D. roseicollis, C. sanguinea sanguinea, and B. suturalis in …

A New Species Of Cymatodera Gray (Coleoptera: Cleridae: Tillinae) From Baja California, Mexico, Jacques Rifkind

Insecta Mundi

The Cymatodera Gray fauna of Baja California (the Mexican states of Baja California and Baja California Sur) comprises fifteen species, of which six (C. minacis Barr, C. intermedia Barr, C. fascifera LeConte, C. santarosae Schaeffer, C. cephalica Schaeffer, and C. purpuricollis Horn) are endemic to the peninsula. Three of these endem­ics (C. intermedia, C. cephalica, and C. purpuricollis) are apterous. The remaining nine species are more broadly distributed, with ranges that extend north into the U.S. border states. This paper describes a new species of fully winged, endemic Baja Cymatodera. The new species is …