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First Portfolio: Introduction To Psychology (Psych 181), Chelsea A. Witt

UNL Faculty Course Portfolios

This course portfolio analyzed student learning in Introduction to Psychology, Psych 181 at the University of Nebraska- Lincoln. This course is often taken by first year students of various backgrounds and majors; this course is a pre-requisite for many other psychology courses. In general, the course covers basic psychological concepts in the realm of biopsychology, developmental psychology, social and personality psychology, cognitive psychology, and clinical psychology. Student enrollment for this section is capped at 200. This portfolio outlines my course goal, objectives, and assessments of those goals. There is also a reflection throughout regarding how well students feel supported and …

Benchmark Portfolio For Asci 451/851: Livestock On Range And Pasture, Fall 2021, Kacie L. Mccarthy

UNL Faculty Course Portfolios

The aim of this portfolio is twofold: first, the portfolio serves to provide a means for the author to reflect on and improve their approach to teaching an ACE 10 course. The Livestock on Range and Pasture course (ASCI 451/851) serves seniors and graduate students with a major and/or minor in Animal Science, Grazing Livestock Systems, Agronomy and Horticulture, or Range. Since taking over the course, the last two semesters have included students primarily from Animal Science or Agribusiness with a major or minor in Grazing Livestock Systems, respectively. This Peer Review of Teaching project evaluated student feedback from the …

Fdst 132- Practical Applications In Food Science — A Peer Review Of Teaching Project: Benchmark Portfolio, Rossana Villa-Rojas

UNL Faculty Course Portfolios

The aim of this course portfolio was to assess improvement of students’ literature research skills and scientific writing after embedding communication lectures, activities and assignments in FDST 132 Practical Applications in Food Science. This is a terminal laboratory course for first year Food Science majors with basic science knowledge. The goal of the course is to allow students to put in practice some basic food science principles and work with their cohort. This portfolio outlines the changes made to this course, the rationale for embedding lectures and assessments in scientific communication. The specific skills and topics I aimed to teach …

The Impact Of Plant Cell Wall Lignin On Energy Utilization In Lactating Jersey Cows, Jason D. Stypinski

Department of Animal Science: Dissertations, Theses, and Student Research

Fiber from forages comprises a significant proportion of dairy cattle rations and by extension, it contributes largely to the energy concentration of the diet. While the proportion of fiber in the diet is important, the composition of fiber is probably more important as the different constituents of this fraction vary in their contributions to the nutritive value of the feed. Lignin has been described as an important factor limiting the digestion of NDF, reducing intake, and compromising milk production. Although lignin’s effects on these responses have been well characterized, the literature lacks data on the use of indirect calorimetry to …

Annotating Gene Expression And Regulatory Elements In Tissues From Healthy Thoroughbred Horses And Identifying Candidate Mutations Associated With Perosomus Elumbis In An Angus Calf, Alexa Mckenna Barber

Department of Animal Science: Dissertations, Theses, and Student Research

Genome annotation has a direct impact on the success of genomic studies. Transcriptome analyses and chromatin immunoprecipitation and sequencing (ChIP-seq) have been used to functionally annotate genomes. These methods can identify protein-coding genes, non-coding transcripts, and cis-regulatory elements across the genome. The primary objective of the first study was to functionally annotate the equine genome through the assessment of nine tissues: adipose, brain, heart, lamina, liver, lung, skeletal, muscle, testis, and ovary. In the first project, 150 bp, paired-end RNA sequencing (RNA-seq) libraries were generated in stallion tissues and compared to previously generated mare RNA-seq libraries to quantify variation in …

The Ghosts Shed Tears, Sarah Jentsch

School of Art, Art History, and Design: Theses and Student Creative Work

Before I was taught what made us different, I thought my brother and I were the same. The only difference between a doe and a buck was the antlers. As I grew, I noticed differences—in the way people spoke to us, in what was expected of us, in the questions we were asked. In what our futures were supposed to look like. The difference between the doe and the buck was still the antlers, but those antlers made one a trophy and the other venison.

Many of my formative experiences I came to understand through animals. My family home, cradled …

First Record Of Agrilus Cliftoni Knull And Anthaxia Viridifrons Gory (Coleoptera: Buprestidae) In Wisconsin, Lawrence Barringer

Insecta Mundi

Two species of Coleoptera: Buprestidae are reported from Wisconsin for the first time: Agrilus cliftoni Knull and Anthaxia viridifrons Gory. Trapping, distribution information, and additional records are also discussed.

Jewel beetles such as emerald ash borer (EAB) (Agrilus planipennis Fairmaire), continue to be of interest as estab­lished pests (USDA APHIS 2021). Survey programs allow for the detection of EAB as it continues to spread across North America while monitoring for other taxa not yet present in the eastern United States such as the goldspot­ted oak borer (Agrilus. auroguttatus Schaeffer) and oak splendor beetle Agrilus biguttatus Fabricius (CERIS …

Seabem: An Artificial Intelligence Powered Web Application To Predict Cover Crop Biomass, Aime Christian Tuyishime, Andrea Basche

Honors Program: Senior Projects (Public)

SEABEM, the Stacked Ensemble Algorithms Biomass Estimator Model, is a web application with a stacked ensemble of Machine Learning (ML) algorithms running on the backend to predict cover crop biomass for locations in Sub-Saharan. The SEABEM model was developed using a previously developed database of crop growth and yield that included site characteristics such as latitude, longitude, soil texture (sand, silt, and clay percentages), temperature, and precipitation. The goal of SEABEM is to provide global farmers, mainly small-scale African farmers, the knowledge they need before practicing and benefiting from cover crops while avoiding the expensive and time-consuming operations that come …

Stepping-Stones And Mediators Of Pandemic Expansion: A Context For Humans As Ecological Super-Spreaders, Eric P. Hoberg, Walter A. Boeger, Daniel R. Brooks, Valeria Trivellone, Salvatore J. Agosta

MANTER: Journal of Parasite Biodiversity

Humans represent ecological super-spreaders in the dissemination and introduction of pathogens. These processes, consistent with the dynamics of the Stockholm paradigm, are exemplified in the origin and globalized distributions of SARS-CoV-2 since initial recognition in central Asia during 2019 and 2020. SARS-like viruses are not widespread in mammals but appear widespread in chiropterans. Bats are isolated ecologically from most other assemblages of mammals in terrestrial systems. Humans may be the stepping-stone hosts for broad global dissemination and wider infection (given the opportunity) among diverse assemblages of mammals in which host and viral capacity are compatible. Human globalization mediated insertion in …

Spatiotemporal Variability In Swedish Lake Ecosystems, Tarsha Eason, Ahjond Garmestani, David G. Angeler

School of Natural Resources: Faculty Publications

Studying ecosystem dynamics is critical to monitoring and managing linked systems of humans and nature. Due to the growth of tools and techniques for collecting data, information on the condition of these systems is more widely available. While there are a variety of approaches for mining and assessing data, there is a need for methods to detect latent characteristics in ecosystems linked to temporal and spatial patterns of change. Resiliencebased approaches have been effective at not only identifying environmental change but also providing warning in advance of critical transitions in social-ecological systems (SES). In this study, we examine the usefulness …

Ecological And Social Strategies For Managing Fisheries Using The Resist-Accept- Direct (Rad) Framework, Abigail J. Lynch, Frank J. Rahel, Doug Limpinsel, Suresh A. Sethi, Augustin C. Engman, David J. Lawrence, Katherine E. Mills, Wendy Morrison, Jay Jay Peterson, Mark T. Porath

United States Fish and Wildlife Service: Publications

Fisheries management is a complex task made even more challenging by rapid and unprecedented socioecological transformations associated with climate change. The Resist-Accept- Direct (RAD) framework can be a useful tool to support fisheries management in facing the high uncertainty and variability associated with aquatic ecosystem transformations. Here, RAD strategies are presented to address ecological goals for aquatic ecosystems and social goals for fisheries. These strategies are mapped on a controllability matrix which explores the ability to guide a system's behaviour towards a desired state based on ecological responsiveness and societal receptivity to change. Understanding and improving the controllability of aquatic …

Investigation Of Students’ Understanding Of Light Matter Interactions In A Chemistry Context, Archer Harrold

Honors Program: Senior Projects (Public)

Students’ have varying levels of understanding of light matter interactions in chemistry contexts. This study investigated students’ understanding through the use of semi-structured interviews and PhEt simulations of both the single slit and double slit experiments. Coding qualitative analysis and construct maps were used to assign students to specific levels of sophistication. It was found that students’ carry differing levels of understanding of light and light matter interactions where low level learners struggled to connect ideas in their explanations while high level learners had strong connections between their knowledge and explanations.

A Farm-To-Fork Quantitative Microbial Exposure Assessment Of Β-Lactam-Resistant Escherichia Coli Among U.S. Beef Consumers, Yangjunna Zhang, John W. Schmidt, Terrance M. Arthur, Tommy L. Wheeler, Qi Zhang, Bing Wang

Department of Food Science and Technology: Faculty Publications

Integrated quantitative descriptions of the transmission of β-lactam-resistant Escherichia coli (BR-EC) from commercial beef products to consumers are not available. Here, a quantitative microbial exposure assessment model was established to simulate the fate of BR-EC in a farm-to-fork continuum and provide an estimate of BR-EC exposure among beef consumers in the U.S. The model compared the per-serving exposures from the consumption of intact beef cuts, non-intact beef cuts, and ground beef. Additionally, scenario analysis was performed to evaluate the relative contribution of antibiotic use during beef cattle production to the level of human exposure to BR-EC. The model predicted mean …

Queueing Theory Model Of Pentose Phosphate Pathway, Sylwester M. Kloska, Krzysztof Pałczyński, Tomasz Marciniak, Tomasz Talaśka, Marissa Miller, Beata J. Wysocki, Paul H. Davis, Tadeusz A. Wysocki

Department of Electrical and Computer Engineering: Faculty Publications

Due to its role in maintaining the proper functioning of the cell, the pentose phosphate pathway (PPP) is one of the most important metabolic pathways. It is responsible for regulating the concentration of simple sugars and provides precursors for the synthesis of amino acids and nucleotides. In addition, it plays a critical role in maintaining an adequate level of NADPH, which is necessary for the cell to fight oxidative stress. These reasons prompted the authors to develop a computational model, based on queueing theory, capable of simulating changes in PPP metabolites’ concentrations. The model has been validated with empirical data …

An Evaluation Of Tractors Tested At The Nebraska Tractor Test Lab And The Effect Of Epa Emission Standards Based Upon Average Pto Horsepower And Fuel Efficiency, Dalton Erickson

Honors Program: Senior Projects (Public)

Newly released tractor models are tested to ensure they meet advertising claims. This thesis utilizes tractor test data to analyze performance trends in tractors based upon their power take off (PTO) horsepower and fuel efficiency and it evaluates how the average fuel efficiency of tractors was affected by the introduction of emission standards by the United States Environmental Protection Agencies. In conclusion, tractors have shown continuous improvement and growth in both fuel efficiency and PTO horsepower, and emission standards have had a small, positive effect on tractors’ average fuel efficiency.

Livestock Performance In Response To High Intensity Rotational Grazing System, Austin Kennedy

Honors Program: Senior Projects (Public)

The production of livestock is composed of a variety of factors all effecting the outcome. For grazing livestock, a key factor in production is the grazing management system. Two of the most common grazing management systems are continuous grazing and rotational grazing. There has been evidence found proving benefits of rotational grazing in regard to vegetation productivity, and prevention and restoration of degraded rangeland. However, there is a lack of clear evidence on the relationship between grazing system and production metrics of livestock. Understanding this relationship can provide the necessary information for livestock producers in order to increase their production …

American Foreign Direct Investment In Morocco: How Can We Help?, Dylan Patrick

Honors Program: Senior Projects (Public)

As the flurry of modern-day threats begins to take their toll on the world, it has never been more crucial to examine interstate relationships. In this pursuit, this paper investigates contemporary American foreign direct investment efforts in Morocco by asking the following questions: (1) what areas of the Moroccan economy are in the most trouble; (2) how has the presence of American foreign direct investment impacted Morocco; and (3) how can these American-led efforts be improved? By answering these questions using case studies, this paper provides policy recommendations that can begin to alleviate some of the problems facing the Northwest …

Greater Numbers Of Antral Follicles In The Ovary Are Associated With Increased Concentrations Of Glucose In Uterine Luminal Fluid Of Beef Heifers, Alexandria P. Snider, Matthew S. Crouse, Shelby L. Rosasco, Kaitlin M. Epperson, Emmalee J. Northrop-Albrecht, Jerica J.J. Rich, Chadwick C. Chase Jr., Jeremy R. Miles, George A. Perry, Adam F. Summers, Robert A. Cushman

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

Increased antral follicles are associated with greater fertility and a uterine environment that is more supportive of early embryonic development in beef heifers. Glucose is a primary energy source for embryos, and glucose concentrations are elevated in uterine luminal fluid (ULF) of pregnant heifers. We hypothesized that ULF glucose concentrations and endometrial transcript abundance for glucose transporters on d16 after insemination would be greater in heifers with increased numbers of antral follicles. Heifers classified with either increased or diminished antral follicle counts were artificially inseminated following the CO-Synch protocol (d0). On d16 after insemination, reproductive tracts of heifers were collected …

A Guide To Common Nutrition, Troy Scheer

Honors Program: Senior Projects (Public)

The purpose of this project was to use the knowledge I have gained through my undergraduate courses and apply it in a format that would be beneficial for the average consumer. This project was researched, written, and designed to be accessible by someone without a background in science or nutrition with the goal of educating the reader of some basic nutrition principles. With this knowledge, it is my hope that the reader will be able to make better nutritional choices and liver a longer and healthier lifestyle by first learning how to choose the right foods. While putting this project …

Creation Of An Influenza A Virus Neuraminidase Consensus Vaccine In An Adenoviral Vector, Leigh Jahnke

Honors Program: Senior Projects (Public)

In the last decade, the estimated annual burden of the flu includes 12,000-52,000 deaths, 140,000-710,000 hospitalizations, and 9 million – 41 million illnesses (Centers for Disease Control and Prevention: Disease burden of the flu). Influenza A virus can mutate and infect a variety of different hosts, which results in frequent antigenic changes and even pandemics. This has led to increased attention on the creation of a universal Influenza A vaccine containing broader immunogenic coverage than current vaccines. Our research involved detailing the steps of the cloning process utilizing a consensus neuraminidase antigen. We utilized the pAdEasy Adenoviral Vector …

Assessment Of Diversity Of Antimicrobial Resistance Phenotypes And Genotypes Of Mannheimia Haemolytica Isolates From Bovine Nasopharyngeal Swabs, Hannah F. Carter, Robert W. Wills, Matthew A. Scott, Alexis C. Thompson, Randall S. Singer, John Dustin Loy, Brandi B. Karisch, William B. Epperson, Amelia R. Woolums

School of Veterinary and Biomedical Sciences: Faculty Publications

The threat of bovine respiratory disease (BRD) for cattle operations is exacerbated by increasing prevalence of antimicrobial resistance (AMR) in Mannheimia haemolytica, a leading cause of BRD. Characterization of AMR in M. haemolytica by culture and susceptibility testing is complicated by uncertainty regarding the number of colonies that must be selected to accurately characterize AMR phenotypes (antibiograms) and genotypes in a culture. The study objective was to assess phenotypic and genotypic diversity of M. haemolytica isolates on nasopharyngeal swabs (NPS) from 28 cattle at risk for BRD or with BRD. NPS were swabbed onto five consecutive blood agar plates; …

Reduction Of Stabilin-2 Contributes To A Protection Against Atherosclerosisstabilin, Yukako Kayashima1*,, Conner A. Clanton, Amanda M. Lewis, Xinghui Sun, Sylvia Hiller, Phillip Huynh, Jennifer Wilder, John Hagaman, Feng Li, Nobuyo Maeda-Smithies, Edward N. Harris

Department of Biochemistry: Faculty Publications

We have previously identified a novel atherosclerosis quantitative trait locus (QTL), Arch atherosclerosis 5 (Aath5), on mouse chromosome 10 by three-way QTL analyses between Apoe^−/− mice on a DBA/2J, 129S6 and C57BL/6J background. The DBA/2J haplotype at the Aath5 locus was associated with smaller plaque size. One of the candidate genes underlying Aath5 was Stabilin-2 (Stab2), which encodes a clearance receptor for hyaluronan (HA) predominantly expressed in liver sinusoidal endothelial cells (LSECs). However, the role of Stab2 in atherosclerosis is unknown. A congenic line of Apoe^−/− mice carrying Aath5 covering the Stab2^DBA allele …

Reduction Of Stabilin-2 Contributes To A Protection Against Atherosclerosis, Yukako Kayashima, Connor A. Clanton, Amanda M. Lewis, Xinghui Sun, Sylvia Hiller, Phillip Huynh, Jennifer Wilder, John Hagaman, Feng Li, Nobuyo Maeda-Smithies, Ed Harris

Department of Biochemistry: Faculty Publications

We have previously identified a novel atherosclerosis quantitative trait locus (QTL), Arch atherosclerosis 5 (Aath5), on mouse chromosome 10 by three-way QTL analyses between Apoe^−/− mice on a DBA/2J, 129S6 and C57BL/6J background. The DBA/2J haplotype at the Aath5 locus was associated with smaller plaque size. One of the candidate genes underlying Aath5 was Stabilin-2 (Stab2), which encodes a clearance receptor for hyaluronan (HA) predominantly expressed in liver sinusoidal endothelial cells (LSECs). However, the role of Stab2 in atherosclerosis is unknown. A congenic line of Apoe^−/− mice carrying Aath5 covering the Stab2 …

Variants Within Genes Edil3 And Adgrb3 Are Associated With Divergent Fecal Egg Counts In Katahdin Sheep At Weaning, Gabrielle M. Becker, Joan M. Burke, Ronald M. Lewis, James E. Miller, James L.M. Morgan, Benjamin D. Rosen, Curtis P. Van Tassell, David R. Notter, Brenda M. Murdoch

Department of Animal Science: Faculty Publications

Gastrointestinal nematodes (GIN) pose a severe threat to sheep production worldwide. Anthelmintic drug resistance coupled with growing concern regarding potential environmental effects of drug use have demonstrated the necessity of implementing other methods of GIN control. The aim of this study was to test for genetic variants associated with resistance or susceptibility to GIN in Katahdin sheep to improve the current understanding of the genetic mechanisms responsible for host response to GIN. Linear regression and casecontrol genome-wide association studies were conducted with high-density genotype data and cube-root transformed weaning fecal egg counts (tFEC) of 583 Katahdin sheep. The casecontrol GWAS …

Developing Activities On Uncharismatic Animals Found At Omaha's Henry Doorly Zoo And Aquarium, Justin Hultquist

Honors Program: Senior Projects (Public)

The Education Department at Omaha’s Henry Doorly Zoo and Aquarium has a number of educational activities based on charismatic species found there. I wished to develop activities the department may use for less charismatic or misunderstood species at the zoo. I began by surveying the exhibits at the zoo and taking note of what species or groups didn’t receive as much visitor engagement, or what comments were made on species that were incorrect. I then began to brainstorm and narrow down potential species that I could develop an educational activity around. As I began to develop and create activities, a …

Starvation Diets: The History And Moral Implications Of Prolonging The Lives Of Juvenile Diabetics Before The Discovery Of Insulin, Olivia Thompson

Honors Program: Senior Projects (Public)

This study explores the state of diabetology before Frederick Banting’s discovery of insulin in 1921, when juvenile diabetes was a terminal diagnosis. The widespread misunderstanding of the disease at the hands of physicians and scientists culminated in improper treatments and erroneous anatomical literature about diabetes until the age of discovery in the late 19th and early 20th centuries. More extensively, I examine the controversial work of 20th-century physician Frederick Madison Allen, who attempted to prolong the lives of juvenile diabetics by subjecting them to a rigid starvation diet by way of experimental trials lasting from 1915 to 1922. This diet …

Dancing And Poetry: A Study Of The Whirling Dervish Dance Through Rumi’S Poetry, Tasneem Huq

Honors Program: Senior Projects (Public)

This exploration investigates the influence of Rumi’s book of poetry, Mathnawi, upon the Sufi practice of the Whirling Dervish dances. It argues that Rumi’s Mathnawi underlies the choreography of the Whirling Dervish dances. Each step of the dance expresses, manifests or embodies themes found in Rumi’s poetry: separation from Unity, ascension, annihilation, and a return to Unity. The thesis introduces this argument, and then discusses historical, theological, and linguistic themes related to Rumi, Sufism, and the Whirling Dervish dances. Following this, the thesis provides a framework that begins with the Neoplatonic theory of emanation grounding Rumi’s poetic thought, followed by …

Comparison Of Transcervical Insemination Versus Surgical Insemination Methods In Dogs At A Veterinary Clinic In Lincoln, Nebraska, Lauren Ahlers

Honors Program: Senior Projects (Public)

Artificial insemination paved the way for many advancements in reproductive technology. Two common artificial insemination methods recommended for use with frozen semen are transcervical insemination and surgical insemination. To better understand the conception rates of dogs for each method, data was collected from Hillcrest Animal Clinic. The data suggested that neither transcervical insemination nor surgical insemination was significantly better than the other. 50% of the dogs conceived when inseminated using the transcervical method, and 54.5% of the dogs conceived when inseminated using the surgical method. Based on the results, more data needs to be collected on both insemination procedures to …

Nasty Woman: An Analysis Of Women's Rage In Popular Culture, Sarah Kee

Honors Program: Senior Projects (Public)

The goal of this senior project was to analyze the underlying cause for why certain female characters in popular culture were villainized for their behavior and generally deemed to be “nasty woman.” After reading numerous books and viewing films that contained “nasty woman”, there was a common denominator that linked their behavior and influenced their decision to enact their often-bloody retribution: the patriarchy. These women were a victim of some aspect of the patriarchy, commonly sexual assault, and could not receive the support they needed, so they decided to take matters into their own hands. The “nasty women” analyzed in …

Resource Selection Of Deer Hunters In Georgia's Appalachian Mountains, Jacalyn P. Rosenberger, Andrew R. Little, Adam C. Edge, Cheyenne J. Yates, David A. Osborn, Charlie H. Killmaster, Kristina L. Johannsen, Karl V. Miller, Gino J. D'Angelo

School of Natural Resources: Faculty Publications

White‐tailed deer (Odocoileus virginianus) and hunters on 2 Wildlife Management Areas (WMAs) within the Chattahoochee National Forest of northern Georgia, USA, significantly declined in number from the 1980s to 2018. Managers were interested in understanding how they could manipulate hunter distribution according to deer management goals. To understand the spatial distribution of hunting pressure and factors driving hunter resource selection, we analyzed GPS tracking data from 58 deer hunters over the 2018–2019 and 2019–2020 hunting seasons. We evaluated hunter selection on 3 spatial scales relative to elevation, slope, and distance from roads, trails, wildlife openings, deciduous forest, mixed …