Digital Commons Network^™

Modified Tracer Gas Injection For Measuring Stream Gas Exchange Velocity In The Presence Of Significant Temperature Variation, C. R. Jensen, D. P. Genereux, T. E. Gilmore, D. K. Solomon

School of Natural Resources: Documents and Reviews

No abstract provided.

Proton Reconstruction With The Cms-Totem Precision Proton Spectrometer, A. Tumasyan

Department of Physics and Astronomy: Faculty Publications

The Precision Proton Spectrometer (PPS) of the CMS and TOTEM experiments collected 107.7 fb⁻¹ in proton-proton (pp) collisions at the LHC at 13 TeV (Run 2). This paper describes the key features of the PPS alignment and optics calibrations, the proton reconstruction procedure, as well as the detector efficiency and the performance of the PPS simulation. The reconstruction and simulation are validated using a sample of (semi)exclusive dilepton events. The performance of PPS has proven the feasibility of continuously operating a near-beam proton spectrometer at a high luminosity hadron collider.

Pioneers, Parricides, And The Spectre Of Violence In Settler-Colonial Homes And Histories, Katrina Jagodinsky

Department of History: Faculty Publications

Americans are grappling with everyday political and personal violence on a variety of fronts. Escalating frustrations with alternating police inaction and violence, failed explanations of gender- and racially motivated mass-shootings, and the heartbreaking centrality of children in this violence—as both victims and perpetrators—leave many onlookers desperate to understand how these acts have come to be so distinctly American. A cadre of scholars are focused on this problem: criminologists, lawyers, political scientists, psychologists, sociologists, and, applying their own unique set of tools and methodologies, historians. Among the historians concerned with the peculiarities of American violence are those who specialize in the …

Pre–Post Intervention Exploring Cognitive Function And Relationships With Weight Loss, Intervention Adherence And Dropout, Amanda N. Szabo-Reed, Laura E. Martin, Cary R. Savage, Richard A. Washburn, Joseph E. Donnelley

Center for Brain, Biology, and Behavior: Faculty Publications

Objective: To evaluate the association between baseline cognitive function, intervention dropout, adherence and 3-month weight loss (WL) when controlling for confounding demographic variables.

Methods: 107 (Mage = 40.9 yrs.), BMI in the overweight and obese range (BMI = 35.6 kg/m2), men (N = 17) and women (N = 90) completed a 3-month WL intervention. Participants attended weekly behavioral sessions, comply with a reduced calorie diet, and complete 100 min of physical activity (PA)/wk. Cognitive function tasks at baseline included Flanker (attention), Stroop (executive control) and working memory, demographics, body weight and cardiovascular fitness were assessed at baseline. Session attendance, adherence …

Concussion-Related Disruptions To Hub Connectivity In The Default Mode Network Are Related To Symptoms And Cognition, Heather C. Bouchard, Kate L. Higgins, Grace Amadon, Julia M. Laing-Young, Arthur C. Maerlender, Seima Al-Momani, Maital Neta, Cary R. Savage, Douglas H. Schultz

Center for Brain, Biology, and Behavior: Faculty Publications

Concussions present with a myriad of symptomatic and cognitive concerns; however, the relationship between these functional disruptions and the underlying changes in the brain are not yet well understood. Hubs, or brain regions that are connected to many different functional networks, may be specifically disrupted after concussion. Given the implications in concussion research, we quantified hub disruption within the default mode network (DMN) and between the DMN and other brain networks. We collected resting-state functional magnetic resonance imaging data from collegiate student-athletes (n = 44) at three timepoints: baseline (prior to beginning their athletic season), acute post-injury (approximately 48 hours …

Face Coverings Differentially Alter Valence Judgments Of Emotional Expressions, Nicholas R. Harp, Andrew T. Langbehn, Jeff T. Larsen, Paula M. Niedenthal, Maital Neta

Department of Psychology: Faculty Publications

Face masks that prevent disease transmission obscure facial expressions, impairing nonverbal communication. We assessed the impact of lower (masks) and upper (sunglasses) face coverings on emotional valence judgments of clearly valenced (fearful, happy) and ambiguously valenced (surprised) expressions, the latter of which have both positive and negative meanings. Masks, but not sunglasses, impaired judgments of clearly valenced expressions compared to faces without coverings. Drift diffusion models revealed that lower, but not upper, face coverings slowed evidence accumulation and affected differences in non-judgment processes (i.e., stimulus encoding, response execution time) for all expressions. Our results confirm mask-interference effects in nonverbal communication. …

Card Game Club, Abigail Klapp, Isabel Pillai

Honors Program: Expanded Learning Clubs

No abstract provided.

The Future Of Extension Programming Post-Pandemic: The Need For Diverse Approaches, Andrew Zimbroff

Department of Textiles, Merchandising and Fashion Design: Faculty Publications

The Covid-19 pandemic has been highly disruptive to Extension programming. Online programming has emerged as one of the primary approaches for maintaining engagement with the communities and populations Extension serves. Some have even suggested that it might become the default programming method, even after it is safe to return to in-person programming. In this commentary, I discuss some of the current limitations and challenges inherent in online-only programming—ones that are often overlooked by Extension personnel. Further, I discuss key factors that Extension personnel should take into account when considering online programming for any future professional efforts.

Appreciating And Promoting Resilience In Families, John W. Eagle, Susan M. Sheridan

Nebraska Center for Research on Children, Youth, Families, and Schools: Faculty Publications

Families comprise the primary context for a child’s development. As the composition of the family system continues to change, the adult caregivers’ role has become increasingly important in fostering healthy developmental trajectories for their children. Family relationships and interaction styles are central to developing competence and promoting adaptive educational, social, emotional, and behavioral functioning. Families give children an informal education (Turnbull et al., 2015), which is a prerequisite to successful experiences in the classroom (Adams & Christenson, 2000). Whereas the school environment sets up developmental tasks for students, the family serves as an important resource for the acquisition of these …

Nebline, January/February 2023

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

2022 Extension Highlights

Thank You Volunteers! Valued at $711,217

From the Unit Leader: Global Connections

4-H Programs Engaged 32,332 Youth

Setting Sustainable, Healthy New Year’s Resolutions by Alyssa Havlovic

Recipe of the Month: Berry Good Pancakes by Aylssa Havlovic

Garden Guide: Thing to Do This Month

Extension’s 2023 Master Gardener Volunteer Training Begins Soon

Upcoming Green Industry Conferences

ProHort Lawn & Landscape Update

2023 Pesticide Applicator Trainings

Crop Production Clinics

Upcoming Ag Workshops

Minimizing the Impact of Winter Weather on Water & Wastewater Systems by Becky Schuerman

Bringing Motor Play Indoors for Young Children by Hayley Jackson

Tiny Bugs in …

Intelligence, United States Army

United States Army: Field Manuals

Intelligence, United States Army Field Manual FM 2-0

Of Game Keepers, Opportunism, And Conservation, Raymond Hames

Department of Anthropology: Faculty Publications

In this collection, gamekeepers are supernatural entities that regulate wildlife hunting in a wide variety of ways. They assist the hunters in pursuit of their prey, ritual respect for the game, and the reincarnation of slain animals. In addition, broader considerations are described, such as the mutual moral obligations between hunters and the supernatural. Gamekeepers seem to be nearly universal in those societies that depend on game animals as an important part of their diet, making the topic interesting from a ideological perspective. Some of the chapters argue that gamekeepers play a role in the conservation of prey types. The …

Combined Air Emissions Reporting System (Caers), Gamas

United States Environmental Protection Agency: Publications

No abstract provided.

A Complex Record Of Last Interglacial Sea-Level History And Paleozoogeography, Santa Rosa Island, Channel Islands National Park, California, Usa, Daniel R. Muhs, Lindsey T. Groves, Kathleen R. Simmons, R. Randall Schumann, Scott A. Minor

United States Geological Survey: Staff Publications

Studies of marine terraces and their fossils can yield important information about sea level history, tectonic uplift rates, and paleozoogeography, but some aspects of terrace history, particularly with regard to their fossil record, are not clearly understood. Marine terraces are well preserved on Santa Rosa Island, California, and the island is situated near a major marine faunal boundary. Two prominent low-elevation terraces record the ~80 ka (marine isotope stage [MIS] 5a) and ~120 ka (MIS 5e) high-sea stands, based on U-series dating of fossil corals and aminostratigraphic correlation to dated localities elsewhere in California and Baja California. Low uplift rates …

Selected Anthropogenic Contaminants In Groundwater, Papio-Missouri River Natural Resources District, Eastern Nebraska, 1992–2020, Brent M. Hall, Cory L. Kavan, Amanda Flynn, Mikaela L. Cherry

United States Geological Survey: Water Reports and Publications

A study in cooperation with the Papio-Missouri River Natural Resources District was completed in 2019 to determine the concentration of contaminants of emerging concern (CEC) in groundwater in the Papio-Missouri River Natural Resources District, eastern Nebraska. Each well was sampled twice (in June and October or November) in 2019, totaling 34 samples. Samples were analyzed for 132 CECs, which include pharmaceutical, steroid hormone, and other organic chemicals. Seven of the 132 CEC analytes were detected in samples collected during this study. The most commonly detected CEC in this study was the antibiotic sulfamethoxazole. Other CECs detected in this study were …

Beyond The Letterhead: A Tactical Toolbox For Transitioning From Program To College, Sarah Hottinger, Megan Mcilreavy, Clay Motley, Louis E. Keiner

National Collegiate Honors Council Monographs: Chapters

As institutions of higher education evolve to better meet the needs of highly motivated students, conversations have focused on the role of an honors education in the undergraduate collegiate experience. Specifically, administrators have been evaluating the value and merits of maintaining an honors program or deciding to make a transition to a new honors college. This chapter clarifies the essential differences between these two approaches to honors education. Additionally, it provides some guiding principles that can generate widespread support and facilitate the development of impactful student experiences that are generally applicable to a broad range of institutions. Overall, honors colleges …

From The Top Down: Implications Of Honors College Deans’ Race And Gender, Malin Pereira, Jacqueline Smith-Mason, Karoline Summerville, Scott Linneman

National Collegiate Honors Council Monographs: Chapters

Most honors college deans are White males, yet most students enrolled in honors colleges are women; more often than not, there is glaring underrepresentation of diverse races and ethnicities among student populations in honors colleges. Considering these data, the authors ask whether honors colleges perpetuate the “Oxford College Don” model of White male privilege and power. Black, Indigenous, Hispanic, and other students of color often look at the leaders of honors colleges and rarely see themselves, and White honors students lack the opportunity to see diverse leadership models. This chapter explains how and why faculty of color and women face …

Evaluation Of Roost Culling As A Management Strategy For Reducing Invasive Rose‑Ringed Parakeet (Psittacula Krameri) Populations, C. Janes Anderson, Leonard A. Brennan, William P. Bukoski, Steven C. Hess, Clayton D. Hilton, Aaron B. Shiels, Shane Siers, Bryan M. Kluever, Page E. Klug

United States Department of Agriculture Wildlife Services: Staff Publications

Rose-ringed parakeets (Psittacula krameri) are one of the most widespread invasive avian species worldwide. This species was introduced to the island of Kaua‘i, Hawai‘i, USA, in the 1960s. The rapidly increasing population has caused substantial economic losses in the agricultural and tourism industries. We evaluated the efficacy of a roost culling program conducted by an independent contractor from March 2020 to March 2021. We estimated island-wide minimum abundance was 10,512 parakeets in January 2020 and 7,372 in April 2021. Over 30 nights of culling at four roost sites, approximately 6,030 parakeets were removed via air rifles with 4,415 …

Social Network Analysis Of White-Tailed Deer Scraping Behavior: Implications For Disease Transmission, Michael E. Egan, Kim M. Pepin, Justin Fischer, Scott R. Hygnstrom, Kurt C. Vercauteren, Guillaume Bastille-Rousseau

United States Department of Agriculture Wildlife Services: Staff Publications

Host contact structure affects pathogen transmission in host populations, but many measures of host contact do not distinguish contacts that are relevant to pathogen transmission from those that are not. Scrapes are sites for chemical communication by white-tailed deer (Odocoileus virginianus) during the breeding season and potential sites of transmission of prions, the causative agent of chronic wasting disease (CWD). Scrape-related behaviors vary in their probability of transmitting prions to or from the environment, suggesting that behavior be combined with contact structure to better reflect potential heterogeneity in prion transmission at scrapes. We recorded visits and behaviors by …

Disease Progression And Serological Assay Performance In Heritage Breed Pigs Following Brucella Suis Experimental Challenge As A Model For Naturally Infected Feral Swine, Vienna R. Brown, Ryan S. Miller, Courtney F. Bowden, Timothy J. Smyser, Nicholas A. Ledesma, Aim E. Hartwig, Paul Gordy, Aaron M. Anderson, Stephanie M. Porter, Kate Alexander, Zane Gouker, Tom Gidlewski, Richard A. Bowen, Angela M. Bosco-Lauth

United States Department of Agriculture Wildlife Services: Staff Publications

Invasive feral swine (Sus scrofa) are one of the most important wildlife species for disease surveillance in the United States, serving as a reservoir for various diseases of concern for the health of humans and domestic animals. Brucella suis, the causative agent of swine brucellosis, is one such pathogen carried and transmitted by feral swine. Serology assays are the preferred field diagnostic for B. suis infection, as whole blood can be readily collected and antibodies are highly stable. However, serological assays frequently have lower sensitivity and specificity, and few studies have validated serological assays for B. suis in feral swine. …

Drought Influences Annual Survival Of Painted Turtles In Western Nebraska, Allyson N. Beard, Larkin Powell

School of Natural Resources: Faculty Publications

Aquatic habitats in the Great Plains of North America have increased risk of droughts under climate forecasts. Droughts have the potential to influence the population dynamics of pond turtles, and long-term studies are useful to assess the impact of climatic variation on turtles. We compiled twelve years of mark-recapture data for painted turtles (Chrysemys picta) captured in a pond in Keith County, Nebraska during 2005–2016 that included two periods of drought. We used a robust design analysis to investigate influences on population size, annual survival, temporary immigration, and capture probability. Estimates of the annual population size ranged from 92 (CI: …

20 Years Of Change In Tundra Ndvi From Coupled Field And Satellite Observations, F. K. Huemmrich, J. Gamon, P. Campbell, M. Mora, S. Vargas, B. Almanza, C. Tweedie

School of Natural Resources: Faculty Publications

No abstract provided.

Confounding Effects Of Snow Cover On Remotely Sensed Vegetation Indices Of Evergreen And Deciduous Trees: An Experimental Study, R. Wang, K. R. Springer, John A. Gamon

School of Natural Resources: Faculty Publications

No abstract provided.

Orb-Web Spider Argiope (Araneidae) As Indigenous Arrow Poison Of G/Ui And G//Ana San Hunters In The Kalahari, Tharina L. Bird, Smith Moeti, Robert K. Hitchcock, Melinda C. Kelly, Lefang L. Chobolo, Nonofo Gotcha, Kgosi K. Moatlhodi, Leungo D. Mukoka, Emmanuel K. Sekopo, Caroline Simmrita Chaboo

University of Nebraska State Museum: Staff and Affiliates, Publications

Hunting has been crucial in early human evolution. Some San (Bushmen) of southern Africa still practice their indigenous hunting. The use of poisons is one remarkable aspect of their bow-and-arrow hunting but the sources, taxonomic identifications of species used, and recipes, are not well documented. This study reports on fieldwork to investigate recent indigenous hunting practices of G/ui and G//ana San communities in the Central Kalahari Game Reserve (CKGR), Botswana. Here we discuss their use of spider poison. The hunters use the contents of the opisthosoma (‘abdomen’) of a spider as sole ingredient of the arrow poison and discard the …

Potential Effect Of The Proposed R-Project Transmission Line On The Aransas-Wood Buffalo Whooping Crane Population, Jeb A. Barzen, J. Michael Engels, Lisa H. Elliott, Douglas H. Johnson

Proceedings of the North American Crane Workshop

Whooping cranes (Grus americana) frequently encounter electrical transmission or distribution lines located throughout most of their range. We estimated the probability of at least 1 whooping crane being killed by colliding with a proposed transmission line (the R-project) planned to cross the primary whooping crane migration corridor in Nebraska. We also estimated the number of individuals that might be killed by the line. We used telemetry data provided by the U.S. Geological Survey and its partners, collected from 2009 to 2018, as well as published data, to estimate: 1) the probability that a migrating whooping crane would stop within the …

Thirteen-Year Status Of The Louisiana Nonmigratory Whooping Crane Reintroduction, Eva K. Szyszkoski, Sara E. Zimorski, Hillary L. Thompson

Proceedings of the North American Crane Workshop

During 2011–2023, 167 captive-reared whooping cranes (Grus americana) were released in the Louisiana Nonmigratory Population: 157 were costume-reared and 10 were parent-reared. There were 5 additional whooping cranes translocated to Louisiana from the Florida Nonmigratory Population. Approximately 68.7% of released cranes survived 1 year post-release and 51.3% survived 3 years following release. During 2011–2017, large cohorts of captive-reared cranes were released and the population size increased rapidly. The population grew more slowly during 2018–2023 when cohort sizes were smaller but there were more wild-hatched cranes that fledged. There were 114 mortalities, and of the 85 where remains were recovered, the …

Lead And Mercury Exposure In Eastern Whooping Cranes: Cause For Concern?, Barry K. Hartup, Anne E. Lacy, Hillary L. Thompson

Proceedings of the North American Crane Workshop

The dietary uptake of lead (Pb) and mercury (Hg) risks limiting population growth of reintroduced whooping cranes (Grus americana) in the Eastern Migratory Population (EMP). We evaluated these potentially toxic trace elements in blood and marginal covert feathers of wild-hatched juvenile and adult cranes sampled in the Wisconsin breeding range between 2016 and 2023. Samples were obtained at live capture events, and analyzed using inductively coupled plasma/mass spectrometry for Pb and Total Hg (THg). Blood Pb concentrations from adults were greater than those of juveniles, but feather Pb concentrations were similar between age classes. Blood and feather THg concentrations were …

Correlates Of Sandhill Crane Off-Channel Roosting Behavior In The Platte Valley, Bethany L. Pstrom, Andrew J. Caven

Proceedings of the North American Crane Workshop

During spring migration, more than 1 million sandhill cranes stage along the Platte River in central Nebraska. Appropriate river flows can support ideal depths for roosting and provide protection from terrestrial predators. Cranes and other waterbirds occasionally roost outside of the river channel or reduce diurnal activity therein but conditions under which this occurs remain poorly defined. Despite the ability to influence flows in this highly managed river system, many hydrological factors remain outside of managers’ control. We examine the proportion of sandhill cranes detected in nonriverine habitat during weekly aerial surveys from mid-February to mid-April from 2016 to 2023. …

Nocturnal Winter Roost Site Use By Whooping Cranes In The Aransas-Wood Buffalo Population, Matti R. Bradshaw, Carter G. Crouch, Katrina M. Fernald, Andrew J. Caven, Dorn M. Moore, Sundas Rehman

Proceedings of the North American Crane Workshop

Evaluating site use and fidelity is vital to understanding roosting area needs for individual birds. We used data from wintering Aransas-Wood Buffalo population whooping cranes tracked with Platform Transmitting Terminals to identify roost sites in Texas. We analyzed 86 unique winters across 42 individuals and used a hierarchical clustering approach to group roost locations that were within 100 m of each other to identify unique roost sites by individual (n = 2,608). We found that on average, whooping cranes used 30.3 ± 1.71 SE roost sites per winter (range 8–70; 30 September and 2 May) and spent on average 4.4 …

Mapping Accuracy Of Close-Range Terrestrial Digital Photogrammetry, Y. Zhou, C. B. Weerasekara, A, Y, Sheshukov

School of Natural Resources: Documents and Reviews

No abstract provided.