Digital Commons Network^™

Amphiphala, A New Genus And Its Three New Species From Eastern North America (Lepidoptera: Tortricidae: Cochylina), Michael A. Roberts, Michael Sabourin, John W. Brown

Insecta Mundi

Amphiphala Roberts and Sabourin, new genus (Lepidoptera: Tortricidae), is proposed for three new species: A. liatriana Roberts and Sabourin, new species; A. landryana Brown, new species; and A. carolana Sabourin, new species. The genus is recorded from the eastern part of North America from Ontario, Canada south to South Carolina, and west to Manitoba and Mississippi. Owing to its superficial similarity to the banded sunflower moth, Cochylichroa hospes (Walsingham, 1884), Amphiphala remained hidden in North American Lepidoptera collections. Amphiphala liatriana has been reared from northern blazing star, Liatris scariosa (L.) Willd. (Asteraceae), in Maine.

Association Mapping Of Important Agronomic Traits In Mucuna Pruriens (L.) Dc., Patrush Lepcha, Mahesh Shekhar, Leelambika Murugesan, Mahammad Jaheer, Ratan Chopra, Vikas Belamkar, Narayana Sathyanarayana

Department of Agronomy and Horticulture: Faculty Publications

Background The tropical legume Mucuna pruriens (L.) DC. can meet three agricultural needs: low-cost protein, highvalue medicines, and green manure or cover crops. But like other underutilized crops, it needs more modern breeding resources. Identifying marker-trait associations (MTAs) can facilitate marker-assisted breeding and crop improvement. Recent studies have demonstrated the feasibility of identifying MTAs using a small number of accessions (< 100). We have characterized a panel of 70 M. pruriens accessions across two consecutive years and performed association analysis for 16 phenotypic traits related to seed (seed length, seed width, seed thickness, seed yield per plant, hundred seed weight); pod (pod length, pod width, number of pods …

Challenges In Assessing Repellency Via The Behavioral Response By The Global Pest Tribolium Castaneum To Protect Stored Grains, Leslie Catherine Rault, William R. Morrison Iii, Alison R. Gerken, Georgina Bingham

Department of Entomology: Faculty Publications

Background: Food security is an increasingly pressing global issue, and by 2050, food production will not be sufficient to feed the growing population. Part of global food insecurity can be attributed to post-harvest losses, including quantity and quality losses caused by stored-product pests like insects. It is thus timely to find management strategies to mitigate these losses and counteract food insecurity. The red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae), a global stored-product pest with a wide range of food sources, was used in this study to assess repellency to a selection of essential oils. Methods: Multiple behaviorally relevant methods …

Wildcat Hills Rare Plant Survey Final Report, Steven B. Rolfsmeier

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

This survey report summarizes fifteen days of field work in eleven sites scattered across the Wildcat Ridge that were completed between May and August of 1996. Forty-five occurrences of 15 plant species on the Nebraska Natural Heritage element list were found. Ten tracts of high quality (or otherwise noteworthy) native communities were identified. Included in the report are site descriptions and element occurrences.

Knockdown Of Gonadotropin-Releasing Hormone Ii Receptor Impairs Ovulation Rate, Corpus Luteum Development, And Progesterone Production In Gilts, Amy T. Desaulniers, Rebecca Cederberg, Clay A. Lents, Brett White

Department of Animal Science: Faculty Publications

Reproduction is classically controlled by gonadotropin-releasing hormone (GnRH-I) and its receptor (GnRHR-I) within the brain. In pigs, a second form (GnRH-II) and its specific receptor (GnRHR-II) are also produced, with greater abundance in peripheral vs. central reproductive tissues. The binding of GnRH-II to GnRHR-II has been implicated in the autocrine/paracrine regulation of gonadal steroidogenesis rather than gonadotropin secretion. Blood samples were collected from transgenic gilts, with the ubiquitous knockdown of GnRHR-II (GnRHR-II KD; n = 8) and littermate controls (n = 7) at the onset of estrus (follicular) and 10 days later (luteal); serum concentrations of 16 steroid hormones …

Working Capital And Cash Flow Tools To Improve Farm Business Performance, Matthew Stockton

Cornhusker Economics

The point of this short essay is to briefly review the need and purpose of both tools, hoping that such a review will help farm managers and operators use them to reach their higher potential and improve their businesses and lives. Working capital represents the businesses’ ability to deal with short-term conditions and its resilience conferred upon it as a result of past performance in accumulating liquid assets. The cash flow document provides the ebb and flow of liquid assets during the normal cycle of doing business, providing recognizable events, plans that can be scrutinized, and identifiable challenges. These tools, …

Molecular Detection Of Pathogenic Bacteria In American Dog Ticks (Dermacentor Variabilis) In Brown County, Nebraska, Nicole Messbarger, Darby Carlson, Keith Geluso, Julie Shaffer

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Ticks carry and transmit disease pathogens that cause many human illnesses. Many of these diseases in humans are accompanied by a wide variety of symptoms making tick-borne illnesses often difficult to diagnose. The rate of reported tick-borne illnesses in humans has increased during the past decades in the United States, alongside a rise in concern for public health and safety. In northern Nebraska, the American dog tick (Dermacentor variabilis) is the primary tick encountered by humans and domestic animals in the region. This species is a known vector for spotted fever group (SFG) rickettsioses and tularemia (Francisella …

Impact Of Partial Oil Removal On Energy Content Of Distillers Grains Plus Solubles For Finishing Cattle, Jordan E. Burhoop, J. L. Sperber, Curt J. Bittner, F. Henry Hilscher, J. C. Macdonald, Galen E. Erickson

Department of Animal Science: Faculty Publications

Two experiments evaluated the impact of the reduction in the percentage of corn oil remaining in distillers grains plus solubles (DGS) after the ethanol plant de-oiling process or by adding corn oil back to DGS following de-oiling on finishing cattle performance and nutrient digestion. Experiment 1 utilized 320 yearling steers (initial BW = 413 kg; SD = 25 kg) fed in 32 pens (10 steers/pen) and assigned to one of four treatments (n = 8 pens/treatment). The four treatments consisted of a blended DRC:HMC corn control diet (CON), de-oiled modified distillers grains plus solubles included at 40% of diet DM …

Groundwater Modeling Of The Ogallala Aquifer: Use Of Machine Learning For Model Parameterization And Sustainability Assessment, Tewodros Aboret Tilahun

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

Addressing groundwater depletion problems in heterogeneous aquifer systems is a challenge. The heterogeneous Ogallala Aquifer, a critical source of groundwater in the central United States, has undergone decades of decline in water levels due to pumping. This project aims to build a robust groundwater model to evaluate optimal scenarios for sustainable use of the groundwater resource within a section of the Ogallala aquifer located in the Middle Republican Natural Resources District (MRNRD). This study follows a comprehensive approach involving parameterization, construction, and optimization. The model is parametrized using hydraulic conductivity and recharge values obtained from a random forest-based machine learning …

The Feasibility Of Utilizing The Open Dynamic Interaction Network (Odin) App To Assess Rema Data Across 30 Days Among Those Recovering From Alcoholism, Dennis E. Mcchargue, Bilal Khan, Jesscia Phelps, Patrick Duryea, Kimberly A. Tyler, Arthur Andrews, Ellie Reznicek, Lucy Napper, Mohamed Saad, Hsuan-Wee Lee

Department of Psychology: Faculty Publications

About ~4 million people with an alcohol use disorder receive treatment annually, and frequent relapse has produced a rapid revolving door between recovery and use. This paper presents preliminary data from a prospective micro-longitudinal study (30 days) that examines co-evolution of relapse risk processes of people with alcohol use disorders who entered a short-term residential substance use treatment. The primary goal of the current data was to assess the feasibility of using the open dynamic interaction network (ODIN) responsive ecological momentary assessment (rEMA). rEMA collected daily estimates on affect, urges, sober-support engagement, and use. The ODIN app administered twelve questions …

Development Of A Multidimensional Measure Of Wellbeing For Emerging Adults Utilizing A Convergent Parallel Mixed Method Design, Kelley Marie Wick

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

Attempting to conceptualize wellbeing is difficult, and the current research literature does not offer a standard definition that encapsulates the complexity of this construct, nor has there been a thorough consideration the impact of culture and societal standards of behavior on wellbeing. Additionally, the emergence of a new developmental period between adolescence and true adulthood (emerging adulthood) offers an additional layer of nuance, as many of the traditional scales currently used to measure wellbeing are inappropriate for emerging adults. A major gap in the current research literature is the reluctance in developing measures with the help of the target population. …

Conservation Decision Making And Agricultural Land Leasing - An Experimental Investigation Of The Role Of Gender, Diya Ganguly, Simanti Banerjee, Christopher Gustafson

Cornhusker Economics

This research investigated the impact of landowner gender and of the different types of contract leases offered by them to a male tenant, on the conservation (or non-conservation) choice made by the tenant. Specifically, we investigate if a) female and male landowners offer different rental contracts and b) whether tenants choose different actions based on the landowner’s gender. For this purpose, we implemented a controlled, gender-context-loaded economic experiment with university students, in which we tested contract and land use choice under different treatments for three types of rental contracts – fixed rent, fixed rent with penalty, and fixed rent with …

Fourier Transform Ion Cyclotron Resonance Mass Spectrometry Applications For Metabolomics, Darcy Cochran, Robert Powers

Robert Powers Publications

Metabolomics is an interdisciplinary field that aims to study all metabolites < 1500 Da that are ubiquitously found within all organisms. Metabolomics is experiencing exponential growth and commonly relies on high-resolution mass spectrometry (HRMS). Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) is a form of HRMS that is particularly well suited for metabolomics research due to its exceptionally high resolution (10⁵–10⁶) and sensitivity with a mass accuracy in parts per billion (ppb). In this regard, FT-ICR-MS can provide valuable insights into the metabolomics analysis of complex biological systems due to unique capabilities such as the easy separation of isobaric and isomeric species, isotopic fine structure analysis, spatial resolution of metabolites in cells and tissues, and a high confidence (error) in metabolite identification. Alternatively, the large and complex data sets, long acquisition times, high cost, and limited access mainly through national mass spectrometry facilities may impede the …

Immunological Feedback Loops Generate Parasite Persistence Thresholds That Explain Variation In Infection Duration, Clayton E. Cressler, Daniel C.G. Metz, David A. Chang Van Oordt, Andrea L. Graham

School of Biological Sciences: Faculty Publications

Infection duration affects individual host fitness and between-host transmission. Whether an infection is cleared or becomes chronic depends on the complex interaction between host immune responses and parasite growth. Empirical and theoretical studies have suggested that there are critical thresholds of parasite dose that can determine clearance versus chronicity, driven by the ability of the parasite to manipulate host immunity. However, the mammalian immune response is characterized by strong positive and negative feedback loops that could generate duration thresholds even in the absence of direct immunomodulation. Here, we derive and analyse a simple model for the interaction between T-cell subpopulations …

A New Species Of Acmaeodera Eschscholtz, 1829 (Coleoptera: Buprestidae) From The State Of Michoacán, Mexico, Jason A. Hansen, Richard L. Westcott

Insecta Mundi

Acmaeodera parasuperba Hansen and Westcott, new species (Coleoptera: Buprestidae), from Michoacán, is described, imaged, and its relationship discussed.

Homocopris Burmeister, 1846 (Coleoptera: Scarabaeidae): Lectotype Designation For Copris Torulosus Eschscholtz, 1822, And Correction On The Geographic Distribution Of The Two Chilean Species, José Mondaca, Fernando Z. Vaz-De-Mello

Insecta Mundi

Homocopris Burmeister, 1846 (Coleoptera: Scarabaeidae) is a small genus of South American dung beetles composed of four species distributed in Argentina, Brazil, and Chile. Recently, a neotype was designated for Copris torulosus Eschscholtz, 1822 (currently H. torulosus) based on the assumption that the original type series had been lost. However, this designation is invalid for failing to comply with articles 75.2, 75.3, 75.3.1, and 75.3.4. of the International Code of Zoological Nomenclature. Furthermore, even if it had been nomenclaturally valid, the neotype now loses its type status because we found a syntype in the material of the Johann …

New Species, New Combinations, Synonymies, And Nomenclatural Discussion For Hispaniolan Longhorned Beetles (Coleoptera: Disteniidae, Cerambycidae), Steven W. Lingafelter, Norman E. Woodley

Insecta Mundi

Fifteen new species of longhorned beetles (Coleoptera: Cerambycidae, Disteniidae) from Hispaniola (the Dominican Republic and Haiti) are diagnosed, described, and illustrated: Novantinoe pilithorax Lingafelter, new species (Disteniini); Eburiola ciferrii Lingafelter, new species (Eburiini), Eburiola konstantinovi Lingafelter, new species (Eburiini), Elaphidion jaragua Lingafelter, new species (Elaphidiini), Linsleyonides guerreroi Lingafelter, new species (Elaphidiini), Compsibidion iviei Lingafelter, new species (Tropidini: Subtribe Neoibidionina), Hormathus albisetosus Lingafelter, new species (Tropidini: Subtribe Compsina), Trichrous eryphoides Lingafelter, new species (Dichophyiini), Plectrocerum woodruffi Lingafelter, new species (Dichophyiini), Oreodera nearnsi Lingafelter, new species (Acrocinini/Acanthoderini), Acrepidopterum fuscum Lingafelter, new species (Apomecynini), Acrepidopterum giesberti Lingafelter, new species (Apomecynini), Estola touroulti Lingafelter, …

Additions To The Knowledge Of The Vietnamese Tiger Beetle Species (Coleoptera: Cicindelidae), Jürgen Wiesner, Christian Kerkering, Miroslav Klícha

Insecta Mundi

Therates tuberosus Fleutiaux, 1893 and Calochroa octogramma octogramma (Chaudoir, 1852) (Coleoptera: Cicindelidae) are newly recorded for Vietnam. Ten additional species are reported to have new provincial records in Vietnam.

Range Extension For Pulchriphyllium Anangu Cumming Et Al., 2023 (Phasmatodea: Phylliidae) And First Record From Maharashtra, Gaurang Tawde, Amol Patwardhan, Royce Cumming

Insecta Mundi

Pulchriphyllium anangu Cumming et al., 2023 is here reported for the first time from Maharashtra state, India. Also, this is the first record of a leaf insect (Phasmatodea: Phylliidae) for Phansad Wildlife Sanctuary, District Raigad, Maharashtra. This sighting represents the northernmost distribution in the Western Ghats for Pulchriphyllium anangu.

A Measurement Of The Differential Drell-Yan Cross Section As A Function Of Invariant Mass In Proton–Proton Collisions At √ S = 13 Tev, William Robert Tabb

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

The Drell-Yan process, a crucial mechanism for producing lepton pairs in highenergy hadron collisions, serves as an essential probe for testing the Standard Model of particle physics. This dissertation presents a comprehensive measurement of the differential cross section with respect to the invariant mass of the lepton pairs, utilizing data collected by the CMS experiment at CERN from 2016 to 2018. Cross sections are essential for refining our understanding of parton distribution functions and the underlying quantum chromodynamics processes, thereby providing constraints on theoretical predictions. In this analysis, the cross sections are compared to theoretical models and simulations, offering new …

Psychosocial Well-Being Facilitation Of Leader Identity Transitions For Retirees, Brooke Wells

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

Leadership scholars have worked to advance the knowledge of leader identity—how one views oneself as a leader—across many age groups. However, there is still little known about leader identity in older adults. This study explored how older adults identified as leaders after exiting the workforce and in retirement. The retirement process often indicates a transition in which one plans to navigate life post-workforce. For some, retirement may be a signal of growing older. Social identity theory scholars argue that retirees do not always embrace this aging identity. Individuals’ thoughts regarding aging are complex. For those able to embrace and navigate …

Research Report: Well-Being, Heather Akin, Cheryl A. Burkhart-Kriesel, Mary Emery, Katelyn Larson, Bradley Lubben, L. J. Mcelravy, Rebecca J. Vogt

Nebraska Rural Poll

This year, rural Nebraskans are more pessimistic about their current situation than they’ve been since this study began. The proportion believing they are worse off than they were five years ago was 33 percent, up from 27 percent last year and 21 percent in 2022. This is the highest level across all years of the study. This increase in pessimism was matched with a sharp decrease in optimism. This year, just over one-third (36%) of rural Nebraskans believe they are better off compared to five years ago, down from 45 percent last year.

This trend continued when looking to the …

Nebline, August/September 2024

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Preserving the Harvest: Canning, Freezing and Drying Tips, Kayla Colgrove

How Savvy are YOU with Home Canning?

Recipe of the Month: Freezing Onions, Kayla Colgrove

Deep, Infrequent Irrigation Makes Lawns and Trees Healthier, Sarah Browning

Garden Guide: Things to Do This Month, Mary Jane Frogge

Get the Jump on Jumping Worms, Kait Jumpman

Preparing Water for Use in an Emergency, Becky Schuerman

Heart of 4-H Volunteer Award: Nicole Miller and Cole Meador

4-H Teen Council Invites New Members

4-H Announcements

Lancaster County Super Fair, August 1-10, 2024

4-H Premiere Communication Event Top Results

4-H Clover College: 55 Hands-on Workshops

4-H …

Sexual Surveillance: Morality Policing Of Greeks And Italians In The Early 20th Century, Isabella Ferrell

Digital Legal Research Lab

The Petitioning for Freedom Project under Dr. Jagodinsky is a database of habeas corpus use in the West. It examines legal action by marginalized individuals. This project focuses on how Greek and Italian petitioners used habeas to challenge sexual policing in a xenophobic context.

Research poster titled Sexual Surveillance: Morality Policing of Greeks and Italians in the Early 20th Century; presented via the Digital Legal Research Lab NSF REU Site, University of Nebraska–Lincoln, August 2024.

Advisors: Katrina Jagodinsky and William Thomas

The Harding Brothers And Underage Enlistment In The Age Of American Expansion, 1851–1857, Ryan Minton

Digital Legal Research Lab

The Petitioning for Freedom Project is an NSF funded database project that seeks to collect and encode carceral, institutional, and interpersonal habeas corpus petitions from county, state, and federal courts all throughout the American West.

This research project explores and analyzes the twenty-four habeas corpus petitions that were submitted between 1851 and 1857 to the Saint Louis County Law Commissioners Office to challenge the enlistment of underage recruits stationed at Jefferson Barracks.

Research poster titled The Harding Brothers and Underage Enlistment in the Age of American Expansion, 1851–1857; presented via the Digital Legal Research Lab NSF REU Site, University of …

Maternal Chains: Black Women's Legal Battles For Freedom In Pre-Emancipation America, Roshawnna Brinkley

Digital Legal Research Lab

This research examines the use of habeas corpus petitions by Black Women in antebellum America to secure freedom for themselves and their children. Given that slave status was inherited matrilineally, these legal actions had implications for generational freedom. In Dr. Jagodinsky’s Petitioning for Freedom project there are numerous cases of Black Women utilizing Habeas Corpus. This study focuses on these Women's agency in navigating a hostile legal system.

Research poster titled Maternal Chains: Black Women's Legal Battles for Freedom in Pre-Emancipation America; via the Digital Legal Research Lab NSF REU Site, University of Nebraska–Lincoln, August 2024.

Advisors: Katrina Jagodinsky and …

To Have And To Hold: Habeas Corpus And The Mobilization Of Female Petitioners, 1832–1924, Miranda Martinez

Digital Legal Research Lab

Dr. Jagodinsky’s Petitioning For Freedom (PFF) is an open-access database of habeas corpus petitions from the American West. It aims to further our understanding of the United States legal landscape in the 19th and 20th centuries.

Research poster titled To Have and To Hold: Habeas Corpus & the Mobilization of Female Petitioners, 1832–1924; presented via the Digital Legal Research Lab NSF REU Site, University of Nebraska–Lincoln, August 2024.

Advisors: Katrina Jagodinsky and William Thomas

Profiled Pickpockets: Seattle's Black Community & 1890s Habeas Mobilization, Zoë Williams

Digital Legal Research Lab

The Petitioning for Freedom project examines habeas corpus in the American West, 1812–1924 to highlight the legal mobilization of marginalized people. This study uses habeas petitions to identify Black people's response to racial profiling in Seattle.

Research poster titled Profiled Pickpockets: Seattle's Black Community & 1890s Habeas Mobilization; presented via the Digital Legal Research Lab NSF REU Site, University of Nebraska–Lincoln, August 2024.

Advisors: Katrina Jagodinsky and William Thomas

Assessing Soil Properties & Suitability For Optimized Irrigation Development In Sudan, Northern Africa, Suhib O. Hamid

Department of Agricultural and Biological Systems Engineering: Masters Project Reports

In Chapter 1, soil properties essential for efficient irrigation are thoroughly assessed. Factors such as soil texture, infiltration rates, and nutrient content are analyzed to provide insights into the selection of modern irrigation systems. Utilizing data collected from 3,192 locations through GPS and laboratory analyses, alongside sophisticated ranking systems, the research determines the most suitable irrigation methods for specific soil series. Findings highlight the remarkable efficiency of drip irrigation across various soil types, contrasting with the consistently lower performance of surface irrigation. The chapter emphasizes the significance of considering soil variability, evapotranspiration, and investment factors in selecting irrigation methods for …

Leavers And Movers: Turnover Of Music Teachers In Nebraska, Christian G. Schuerman

Glenn Korff School of Music: Dissertations, Theses, Student Creative Work, and Performances

The purpose of this study was to determine if the rates of music teachers leaving the teaching profession and changing schools were significantly different than those of teachers of other content areas in the state of Nebraska. This study used data from the previous nine years of the Nebraska Department of Education’s Education Directory in order to find results for the entire population. Results indicated that music teachers leave the profession at similar rates as teachers of other content areas, but move schools at significantly higher rates.

Advisor: Robert H. Woody