Digital Commons Network^™

Impact Of Dietary Phytase On Tilapia Performance And Biofloc Water Quality, Bartholomew W. Green, Steven D. Rawles, Kevin K. Schrader, Matthew E. Mcentire, Jason Abernathy, Candis L. Ray, T. Gibson Gaylord, Miles D. Lange, Carl D. Webster

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

We tested the hypothesis that the fate of dietary phosphorus will not differ among a dicalcium phosphate-free practical diet treated with 6-phytase (3000 FTU/kg; Quantum Blue™; P-F + Phy), and positive (C) and negative (P-F) control practical diets when fed to hybrid tilapia (Oreochromis aureus x O. niloticus; 29.8 g initial weight) stocked at 29 fish/m³ and grown for 5 months to market size (454 g/fish) in outdoor biofloc production system tanks (16.6 m³). The ideal protein diets were formulated to contain 27.7% digestible protein and 4% lipid from practical ingredients and were extruded …

Preperitoneal Insufflation Pressure Of The Abdominal Wall In A Porcine Model, Riley E. Reynolds, Benjamin Wankum, Sean J. Crimmins, Mark A. Carlson, Benjamin S. Terry

Department of Mechanical and Materials Engineering: Faculty Publications

Background Most complications and adverse events during laparoscopic surgery occur during initial entry into the peritoneal cavity. Among them, preperitoneal insufflation occurs when the insufflation needle is incorrectly placed, and the abdominal wall is insufflated. The objective of this study was to find a range for static pressure which is low enough to allow placement of a Veress needle into the peritoneal space without causing preperitoneal insufflation, yet high enough to separate abdominal viscera from the parietal peritoneum.

Methods A pressure test was performed on twelve fresh porcine carcasses to determine the minimum preperitoneal insufflation pressure and the minimum initial …

High Plains Wheat Mosaic Virus: An Enigmatic Disease Of Wheat And Corn Causing The High Plains Disease, Satyanarayana Tatineni, Gary Hein

Department of Entomology: Faculty Publications

Brief history: In 1993, severe mosaic and necrosis symptoms were observed on corn (maize) and wheat from several Great Plains states of the USA. Based on the geographical location of infections, the disease was named High Plains disease and the causal agent was tentatively named High Plains virus. Subsequently, researchers renamed this virus as maize red stripe virus and wheat mosaic virus to represent the host and symptom phenotype of the virus. After sequencing the genome of the pathogen, the causal agent of High Plains disease was officially named as High Plains wheat mosaic virus. Hence, High Plains virus, …

Masthead & Table Of Contents, Vol.99, No.4

Nebraska Law Review

No abstract provided.

Covid-19, Constitutions, And A Connected World: Assessing The Constitutionality Of Remote Voting In Legislatures, Joseph R. Quinn

Nebraska Law Review

I. Introduction

II. Background ... A. A Brief History of the COVID-19 Outbreak and Its Effects ... B. The Legislative Response to the Outbreak

III. Federal Level: There Are No Constitutional Barriers to Remote Voting in Congress ... A. Members of Congress Lobby for Remote Voting in Response to the COVID-19 Outbreak ... B. Congress’s Rulemaking Power in the Context of Remote Voting ... C. The Political Question Doctrine Would Likely Lead the Court To Reject a Challenge to the Rulemaking Power ... D. The Quorum Requirement as a Potential Express Limitation to Congress’s Rulemaking Power in the Remote Voting …

Anth 110: Introduction To Anthropology: A Peer Review Of Teaching Benchmark Memo, Taylor A. Livingston

UNL Faculty Course Portfolios

This portfolio examines the extent to which the learning outcomes for Introduction to Anthropology (ANTH 110) were met through course assessments. The primary goal of this course is for students to engage with anthropological content, by introducing students to an anthropological perspective, which requires looking at issues from multiple contexts (holism), and having students add this to their “tool kit” to help them make sense of what they believe, why they believe it, and how to make sense of the world around them and their place in it. The alignment of outcomes and assessment was analyzed through an examination of …

Impacts Of Extreme Environmental Disturbances On Piping Plover Survival Are Partially Moderated By Migratory Connectivity, Kristen S. Ellis, Michael J. Anteau, Francesca J. Cuthbert, Cheri L. Gratto-Trevor, Joel G. Jorgensen, David J. Newstead, Larkin Powell, Megan M. Ring, Mark H. Sherfy, Rose J. Swift, Dustin L. Toy, David N. Koons

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Effective conservation for listed migratory species requires an understanding of how drivers of population decline vary spatially and temporally, as well as knowledge of range-wide connectivity between breeding and nonbreeding areas. Environmental conditions distant from breeding areas can have lasting effects on the demography of migratory species, yet these consequences are often the least understood. Our objectives were to 1) evaluate associations between survival and extreme environmental disturbances at nonbreeding areas, including hurricanes, harmful algal blooms, and oil spills, and 2) estimate migratory connectivity between breeding and nonbreeding areas of midcontinental piping plovers (Charadrius melodus). We used capture …

Place, Self, Community: City As Text™ In The Twenty-First Century, Bernice Braid, Sara Quay

National Collegiate Honors Council Monographs

Acknowledgments

Introduction — Place, Self, Community: City as Text™ in the Twenty-First Century by Bernice Braid

PART 1: Theory and Practice of City as Text™ — Brain Activity and Experiential Learning by Paul Witkovsky • Lost in Learning: Mapping the Position of Teacher in the Classroom and Beyond by Susan M. Cannata, Jesse Peters, Alix Dowling Fink, Edward L. Kinman, JoEllen Pederson, Phillip L. Poplin, and Jessi B. Znosko • Learning from the Land: Creating Authentic Experience-Based Learning that Fosters Sustained Civic Engagement by Ted Martinez and Kevin Gustafson • Integrating Dynamic Systems Theory and City as …

Brain Activity And Experiential Learning, Paul Witkovsky

National Collegiate Honors Council Monographs: Chapters

The chapters in this book deal primarily with students’ learning experiences as documented through self-awareness, knowledge acquisition, and behavior. Language makes it possible to communicate these changes to others. This essay, in contrast, will examine learning from the perspective of brain function. The current framework of thinking among neuroscientists, psychologists, and philosophers is that the brain is fully responsible for our minds, and thus studying how the brain functions in molecular, cellular, and systems terms sheds light on all mental processes, including those that are the substrate of learning. A scientific understanding of brain function thus helps to explain the …

Éloge De La Fuite, Stéphane Bikialo

French Language and Literature Papers

[Ce texte a paru dans Lydie Salvayre, éd. Stéphane Bikialo, Classiques Garnier, 2020.]

« Si on y allait ? »

(fin de BW )

Je pars.

Toujours il dit Je pars, je me tire.

Il aime le mouvement de partir. Il se fout de l’endroit à atteindre, ce qu’il aime c’est partir, c’est déclarer qu’il part. Il dit qu’il va écrire, un jour, l’éloge de la fuite. (BW )

C’est BW qui le dit, et c’est Lydie Salvayre qui l’écrit, inaugurant avec cet ouvrage, paru en 2009, une série qu’elle décrira ainsi dans Hymne (2011) : « le temps presse …

Influence Of Science Experiences On Preservice Elementary Teachers’ Beliefs, Saiqa Azam, Deepika Menon

Department of Teaching, Learning, and Teacher Education: Faculty Publications

teachers’ science teaching beliefs and explain how these beliefs influence the way these teachers interpret their science teaching and learning experiences. Supported by the theoretical underpinnings of teacher beliefs and drawings as a tool to investigate teacher beliefs, this research utilized qualitative (written science autobiographies and reflections) and quantitative (Draw-a-Science-Teacher-Test-Checklist as a pre and post measure) data collection techniques. A total of 55 preservice elementary teachers participated from two public universities located in the United States and Canada. Quantitative analysis revealed positive shifts in science teaching beliefs of preservice elementary teachers largely in two ways: A small shift representing small …

Alceste: Tragédia-Opéra En Trois Actes, A Revisitation, Randall Snyder

Glenn Korff School of Music: Faculty Publications

The history of opera constantly swings from emphasis on drama to that of music. In developing opera based on their interpretation of Greek drama, the Florentine Camarata stressed the dramatic element. The idea that words must have dramatic purpose and clearly understood were impulses moving music away from the polyphony of the late Renaissance to the monodic writing of the early Baroque. During the subsequent century the theatrical and virtuosic elements were emphasized at the expense of their dramatic relevance. . With Gluck’s reform operas the focus once more shifts to the dramatic.

The opera Alceste, with music by …

Cooperative Feeding In Common Dolphins As Suggested By Ontogenetic Patterns In Δ15N Bulk And Amino Acids, Rocio I. Ruiz-Cooley, Tim Gerrodette, Susan Chivers, Kerri Danil

United States Department of Commerce: Staff Publications

1. Understanding the effect of stage-specific traits on species feeding habits can reveal how natural selection shapes life strategies. Amino acid (AA) nitrogen stable isotopes (δ¹⁵N) provide multiple proxies of habitat baseline values and diet that can improve our understanding of species feeding strategies relative to their animal metabolism. We evaluated the effect of body length as a proxy for life stage and sex on the feeding habits of the common dolphin Delphinus delphis delphis using δ¹³C and δ¹⁵N in bulk tissue and AAs δ¹⁵N from skin samples collected for almost two …

Female And Male-Controlled Livestock Holdings Impact Pastoralist Food Security And Women’S Dietary Diversity, Henriette Gitungwa, Christopher Gustafson, E.Y. Jimenez, E. Wesley F. Peterson, M. Mwanzalila, Asha Makweta, E. Komba, R.R. Kazwala, J.A.K. Mazet, Elizabeth Vanwormer

School of Veterinary and Biomedical Sciences: Faculty Publications

Background: Food insecurity is a global problem that requires a One Health approach. As many households in low- and middle-income nations rely on crops and livestock that they produce to meet their household’s needs, food security and nutrition are closely linked to the health of animals and the environment. Resources controlled by women are more often allocated to uses that benefit the entire household, such as food, health, and educating children, than men’s resources. However, studies of gender control of resources among pastoralist societies are scant. We examined the effect of female and male control of livestock resources on food …

Pesticide Occurrence And Persistence Entering Recreational Lakes In Watersheds Of Varying Land Uses, Jessica Satiroff, Tiffany Messer, Aaron R. Mittelstet, Daniel D. Snow

Nebraska Water Center: Faculty Publications

Currently little is known of newer pesticide classes and their occurrence and persistence in recreational lakes. Therefore, the objectives of this study were to (1) assess average pesticide concentrations and loadings entering recreational lakes in three mixed land use watersheds throughout the growing season, (2) evaluate pesticide persistence longitudinally within the lakes, and (3) perform an ecotoxicity assessment. Six sampling campaigns were conducted at three lakes from April through October 2018 to measure the occurrence and persistence during pre, middle, and post growing season. Polar organic chemical integrative samplers (POCIS) were placed in streams near lake inlets and monthly samples …

Diversification Of Angiosperms During The Cretaceous Period, Sakia Fields

Department of Environmental Studies: Undergraduate Student Theses

The topic of the Angiosperms relatively sudden appearance and diversification is a topic that has puzzled plenty of biologists and is even referred to as an “abominable mystery” by Charles Darwin. Up to date, many hypotheses have been proposed using various forms of data to form them. The available knowledge used to evaluate this topic has changed over the years, which has created some theme shifts. Some of the best supported of these hypotheses are more recent, but this does not make older articles unworthy of being evaluated, as they still often have relevant information. In the past, their appearance …

The Effect Of Agkistrodon Contortrix And Crotalus Horridus Venom Toxicity On Strike Locations With Live Prey, Chase Giese

Department of Environmental Studies: Undergraduate Student Theses

This paper aims to uncover if there is a significant difference in the strike location of snake species that have different values of LD50% venom. It is thought that most snakes strike their prey in the anterior (head) area in order for their venom to work quicker in killing them. Venom toxicity is measured by its LD50% value, which is the amount of venom, in mg/kg, to kill 50% of a test population. The Copperhead has an LD50% value of 10.9 mg/kg, and the Timber Rattlesnake has an LD50% value of 1.64 mg/kg. The hypothesis was that if venom toxicity …

Temporal And Spatial Interactions Between Coyotes And Red Foxes Along The Urban–Rural Interface, Adam Mortensen

Department of Environmental Studies: Undergraduate Student Theses

Intraguild competition between predators may cause one predator to alter their temporal activity patterns or occupancy to reduce competition or avoid aggressive encounters. I conducted a temporal activity pattern and occupancy study of coyotes (Canis latrans) and red foxes (Vulpes vulpes) in and around Lincoln, Nebraska using camera traps deployed from September of 2020 to May of 2021. I evaluated the activity patterns of coyotes, red foxes, and humans in urban and rural settings along with the activity patterns of red foxes when sympatric or allopatric with coyotes and determined the coefficient of overlap (Δ) between …

Relationship Of Land Use Categories And Water Quality For Low Order Streams, Jake Mcenaney

Department of Environmental Studies: Undergraduate Student Theses

The relationship of land use categories and water quality was explored in three different streams in the tri-state area of Nebraska, Iowa, and Missouri. These streams included: a fourth order stream, Salt Creek, near Waverly, NE, a third order stream, Maple Creek, near Nickerson, NE, and a sixth order stream, Nodaway River, near Graham, MO. Stream order was to be kept relatively low due to the impact tributary rivers have on a given stream's nitrate concentration. Nearby land use is expected to impact nutrient concentrations to a greater extent for smaller rivers than on larger rivers with more tributaries. First, …

Sparking Awareness In Lincoln Electronic Waste Trends And Habits: A Student Behavioral Analysis, Zowie Vincent

Department of Environmental Studies: Undergraduate Student Theses

Nebraska is recognized as one of the few states that have not established any laws or practices managing electronic waste. Along with no e-waste management laws, there is also a lack of studies discussing the behavioral trends and habits towards electronic devices and how to dispose of them once they are unable to function. Continuing to ignore the choice of recycling electronics results in further damage towards the environment, human and animal health, as well as an economic opportunity of a growing market. This study focuses on the trends and habits of electronic consumption, usage, and disposal amongst students at …

Using The Theory Of Planned Behavior To Understand The Behavioral Use Of Single-Use Plastic Bags By Students At The University Of Nebraska–Lincoln, Josephine Stoessel

Department of Environmental Studies: Undergraduate Student Theses

Reduction in the use of single-use plastic bags is a necessary sustainability step as it will reduce pollution of air, soil, waterways, and ingestion by marine animals. The Theory of Planned Behavior is used in this study to determine which components are the influencing factors for why students at the University of Nebraska-Lincoln use single-use plastic bags. An understanding of these factors allows for suggestions and recommendations for actions that can be taken by the university to combat this environmental issue. EcoCoin is an incentive-based program created by Penn State, and is the focus of this study. The literature review …

The Relationship Between Time And Plant Diversity In Prairie Restorations Within The Prairie Corridor On Haines Branch, Elizabeth Park

Department of Environmental Studies: Undergraduate Student Theses

This study focuses on better understanding the relationship between the age of prairie restorations and their plant diversity. The study looks specifically at the prairie restorations within the Prairie Corridor on Haines Branch, located west of Lincoln, Nebraska. The data gathered from these restorations show a positive correlation between age and native plant diversity. This diversity indicates that the restorations are fulfilling their purpose by bringing native prairie plants back to the area. From the data I came to these four conclusions, 1) Because the study only included two restorations greater than 10 years old, it is unclear if the …

Effects Of Land Use In Nebraska On Insect Biodiversity And Eastern Monarch Populations, Carina Olivetti

Department of Environmental Studies: Undergraduate Student Theses

How are Nebraska land use decisions affecting eastern monarch butterfly decline? What are the driving factors causing monarch decline? What are the challenges of insect monitoring and data organizing? The purpose of this exploratory research project was to investigate these questions and simultaneously illustrate the importance of insect biodiversity, focusing largely on the monarch butterfly. The eastern population of the monarch butterfly has declined 80% over the past two decades. The state of Nebraska lies within their migratory path and is therefore critical to their survival. The hypothesis is that monarch populations are declining because of the combined impacts of …

Droughtscape, Winter 2021, National Drought Mitigation Center

DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)

DroughtScape, Winter 2021

Cultural And Linguistic Experiences Of Immigrant Youth: Voices Of African Immigrant Youth In United States Urban Schools, Lydiah Kananu Kiramba, Alex Kumi-Yeboah, Patriann Smith, Anthony Mawuli Sallard

Department of Teaching, Learning, and Teacher Education: Faculty Publications

This study explores experiences of 50 culturally and linguistically diverse African immigrant students attending public urban middle and high schools in the US. Drawing on in-depth interviews, and through constant comparison analysis, emerging findings highlight pedagogical, linguistic, and curricular variation struggles in the classroom; transitional contextual challenges; cultural mismatch; miscommunication, and stereotypes. In light of these experiences, African immigrant urban youth draw on familial, navigational and aspirational capital to resist stereotypical assumptions and to develop resilient skills necessary to navigate the inherent challenges. Findings underscore the importance of appreciating ways of knowing that deviate from the host country knowledges as …

A Comprehensive Study To Delineate The Role Of An Extracellular Vesicle-Associated Microrna-29a In Chronic Methamphetamine Use Disorder, Subhash Chand, Austin Gowen, Mason Savine, Dalia Moore, Alexander Clark, Wendy Huynh, Niming Wu, Katherine Odegaard, Lucas Weyrich, Rick A. Bevins, Howard S. Fox, Gurudutt Pendyala, Sowmya V. Yelamanchili

Department of Psychology: Faculty Publications

Extracellular vesicles (EVs), which express a repertoire of cargo molecules (cf. proteins, microRNA, lipids, etc.), have been garnering a prominent role in the modulation of several cellular processes. Here, using both non-human primate and rodent model systems, we provide evidence that brain-derived EV (BDE) miRNA, miR- 29a-3p (mir-29a), is significantly increased during chronic methamphetamine (MA) exposure. Further, miR-29a levels show significant increase both with drug-seeking and reinstatement in a rat MA self-administration model. We also show that EVassociated miR-29a is enriched in EV pool comprising of small EVs and exomeres and further plays a critical role in MA-induced inflammation and …

Reconstruction Of Ancient Microbial Genomes From The Human Gut, M. C. Wibowo, Z. Yang, M. Borry, A. Hubner, K. D. Huang, B. T. Tierney, S. Zimmerman, F. Barajas-Olmos, C. Contreras-Cubas, H. Garcia-Ortiz, A. Martinez-Hernandez, J. M. Luber, K. Reinhard Et Al.

School of Natural Resources: Faculty Publications

No abstract provided.

Individual Differences In Social Responsiveness, Social Experiences, And Oxytocin System Genetic Variation In Depression Symptom Severity, Grace Sullivan

Department of Psychology: Dissertations, Theses, and Student Research

Social experiences including discrimination, low social support, and interpersonal conflict are reliable predictors of depression symptom severity (Costello, 1982; Monroe, Rohde, Seeley, & Lewinsohn, 1999; Phifer & Murrell, 1986). However, individual differences may buffer against or exacerbate risk (Pluess & Belsky, 2015). A more holistic and dimensional approach, in line with modern perspectives on mental health (Kircanski, LeMoult, Ordaz, & Gotlib, 2017), requires an investigation of individual differences that moderate associations of positive and negative social experiences with depression symptom severity. This dissertation assesses relative contributions of social experiences (low social support, discrimination, childhood trauma, and sexual objectification) to variation …

Spatiotemporal Interactions Between Deer And Cattle, Sydney Brewer

Honors Program: Senior Projects (Public)

Mule deer, white-tailed deer, and cattle are sympatric on the landscape throughout many portions of Nebraska and encounter each other in time and space. By considering variation in daily activity patterns and non-random patterns in the timing of passage through specific locations, we can better understand whether animals may be avoiding each other temporally when sharing space. I investigated temporal activity patterns and avoidance/attraction ratios to investigate if deer altered their activity patterns in the presence of cattle and if they exhibited avoidance at a study site near McCook, Nebraska, USA. We collected data from 19 game cameras that were …

Two-Dimensional & Three-Dimensional Microarray Cell Culture Using Elastomeric Assembly Substrates, Angel Olivera-Torres

Honors Program: Senior Projects (Public)

Tissue engineering and regenerative medicine represent the collection of all engineering disciplines brought together for the common goal of developing novel ways of growing tissues and organs in the laboratory. Efforts have made it possible to replicate or induce growth of 2D structures in the human body like skin, but the clinical need for on-demand solid organs has yet to be met due to lack of understanding of the variables responsible for organogenesis. Cell-colony heterogeneity, 3D-cellular architecture, bioactive molecules, and crosstalk communication between parenchymal cell populations need to be further investigated, and high-throughput technologies can rapidly increase the rate at …