Digital Commons Network^™

Wiley Journal Package: Unl Download Activity By Subject, David C. Tyler, Casey Hoeve, David Macaulay, Robin Mcclanahan

University of Nebraska-Lincoln Libraries: White Papers

Because the field of librarianship has been reconsidering its relationship to commercial academic publishers and their 'Big Deal' journal packages, the authors decided to review the University of Nebraska-Lincoln's usage of Wiley's package. In this report, the authors looked into whether UNL's downloads by subject were such that subscribing to a number of hypothetical smaller, subject-specific packages, rather than to the entire Wiley package, might be a viable strategy.

Math Basics Afterschool Club, Lexi Soukup, Meg Williams

Honors Program: Expanded Learning Clubs

This is a compilation of Lexi Soukup and Meg Williams’ work as Club Leaders in an Afterschool Club run through the University of Nebraska- Lincoln and YMCA Afterschool Programs titled Math Basics. Our club is an interactive, hands-on math exploration where students are challenged to change their perspective of math, and it is meant to occur once weekly. During this club, we try to challenge their current views of math and expand their knowledge on math concepts they learn in class through activities and games. This is meant to make math FUN! Our compilation of lesson plans are sure to …

The Role Of Risk In Farmland Contract Choices, Chelsea Arnold, Jisang Yu, Mykel Taylor, Leah H. Palm-Forster, Simanti Banerjee

Department of Agricultural Economics: Faculty Publications

Understanding the role of risk in farmland leasing contract choices is important to assess the welfare consequences of farm policies or environmental changes that affect production risk. We use a unique dataset of landowners and tenants in Kansas to examine the role of risk in their farmland leasing contract choices. We find that greater production risk and more risk-averse landowners encourage fixed cash rent contracts. As many variables can potentially affect contract choices, we use a penalized regression to show that the inclusion of relationship variables leads to little change in the main results.

Reflection Types And Students’ Viewing Of Feedback In A First-Year Engineering Course Using Standards-Based Grading, Heidi A. Diefes-Dux, Laura M. Cruz Castro

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Background: Feedback is one of the most powerful and essential tools for learning and assessment, particularly when it provides the information necessary to close an existing gap between actual and reference levels of performance. The literature on feedback has primarily focused on addressing strategies for providing effective feedback rather than aspects of students’ readiness to engage with feedback. Purpose/Hypothesis: This study investigated whether reflection, as a routine pedagogical intervention grounded in self-regulated learning theory, promotes the frequency with which students view feedback. Design/Method: A quasi-experimental design was employed to examine the relationship between the use of four different reflection types, …

Alternative Pathway To Photorespiration Protects Growth And Productivity At Elevated Temperatures In A Model Crop, Amanda P. Cavanagh, Paul F. South, Carl J. Bernacchi, Donald R. Ort

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

Adapting crops to warmer growing season temperatures is a major challenge in mitigating the impacts of climate change on crop production. Warming temperatures drive greater evaporative demand and can directly interfere with both reproductive and vegetative physiological processes. Most of the world’s crop species have C3 photosynthetic metabolism for which increasing temperature means higher rates of photorespiration, wherein the enzyme responsible for fixing CO2 fixes O2 instead followed by an energetically costly recycling pathway that spans several cell compartments. In C3 crops like wheat, rice and soybean, photorespiration translates into large yield losses that are predicted to increase as global …

Building Resilience In Ctls: Reflections On Practice, Lisa J. Hatfield, Julie Maxson, Jennifer Marshall Shinaberger, Hanna E. Norton, Cynthia (Cia) H. Demartino, Annette Finley-Crosswhite, Gigi Gokcek

To Improve the Academy: A Journal of Educational Development

What are the qualities of the “now” that make teaching and learning an urgent, if not a moral, imperative? A group of faculty, administrators, and educational developers respond to this question with individual narratives bound together by a common theme of reflective practice in times of crises to help faculty become more resilient in preparing for ongoing upheavals and unexpected crises while pursuing more inclusive communities. Our personal narratives reflect on the subjects of flexibility in the face of crises, technology and ethics, study abroad exposure to ethical challenges, students’ growing anxiety and mental health, modeling metacognition with peers and …

Processing Seismic, Gravity And Magnetic Data Over Diebold Knoll On Juan De Fuca Plate, Md Ariful Islam, Irina Filina

UNL Student Research Days Posters, Graduate

The Juan de Fuca plate is subducting beneath the North American plate along the Cascadia Subduction Zone. The CSZ is associated with multiple earthquakes, although compared to other subduction zones, it is less active. Many studies suggest that subduction will cause major mega thrust earthquake in near future, while others oppose this view. This project is focused on the Diebold Knoll on the JdF plate Various geophysical methods will be integrated to determine its origin and tectonic history.

Using Field Scale Electrical Data To Understand Real-Time Agricultural Water Delivery, Bradley Dowell

Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research

Areas across the High Plains (Ogallala) Aquifer region are experiencing unsustainable groundwater level declines and impacts to streamflow due to increasing human influence, posing challenges for sustaining future agricultural economies and groundwater resources. State and local agencies manage water using groundwater models, which are not at the same temporal and spatial scale as water management on farms. Well-informed agricultural water usage cannot be achieved without reliable and cost-effective water use at farm scale. Water meters are expensive and rarely installed unless required by the state or other regulatory agency; however, most center pivots have their own power supply, which reports …

Integrated Honey Bee Education And Research Aids For Promoting Pollinator Conservation, Courtney Brummel

Department of Entomology: Dissertations, Theses, and Student Research

Extension and outreach programs combine University instruction and research, with off-campus outreach and service to the community. Successful public education requires training in which colleges and their education services provide programs relevant to today’s needs. To better engage with the public, institutions and Extension professionals often partner with private and not-for-profit organizations to provide training opportunities. The following thesis reviews one such partnership with the University of Nebraska-Lincoln and Kimmel Orchard & Vineyard that provides science-focused, on-farm experiences and agriculture production training programming. Chapter 1 reviews their partnership since it began in 2005 and highlights examples of current farm-to-table education …

Remotely Close: An Investigation Of The Student Experience In First-Year Mathematics Courses During The Covid-19 Pandemic, Sawyer Smith

Honors Program: Senior Projects (Public)

The realm of education was shaken by the onset of the COVID-19 pandemic in 2020. It had drastic effects on the way that courses were delivered to students, and the way that students were getting their education at the collegiate level. At the University of Nebraska – Lincoln, the pandemic dramatically changed the way that first-year mathematics courses looked for students. By Spring 2021, students had the opportunity to take their first-year math courses either in-person or virtually. This project sought to identify differences between the two methods of course delivery during the Spring 2021 semester, regarding interaction with peers …

An In-Depth Review Of Alec 480: Senior Capstone In Agricultural & Environmental Sciences Communication (Aesc), Laura E. Young

UNL Faculty Course Portfolios

This portfolio reviews ALEC 480, the undergraduate senior capstone course for Agricultural and Environmental Sciences Communication (AESC) majors in the Department of Agricultural Leadership, Education, and Communication (ALEC). The goal of ALEC 480 is to provide a culminating experience for AESC majors that incorporates all learning outcomes for the AESC program. During this course, students investigate topics identified by the Institute of Agriculture and Natural Resources (IANR) as critical to the state of Nebraska. Once identified, students then conduct interviews with researchers and Nebraska Extension educators and write, edit, design, and assist in the production of print and multimedia versions …

Comparing Outcomes For In-Person And Online Instruction For Jomc 130: Introduction To Design Thinking, Katie Krcmarik

UNL Faculty Course Portfolios

The portfolio analyzes two sections of the JOMC 130: Introduction to Design Thinking course that serves as the first course in a five course sequence about Communication Design in the College of Journalism and Mass Communications at the University of Nebraska–Lincoln. The portfolio explores the student outcomes from the course in general as well as compares the student success between in-person and online delivery for the course during the Fall 2021 semester. The course focuses on three main topics—technology, design thinking or problem solving, and storytelling. These three topics are foundational to all majors in the college. The course is …

Course Portfolio — Hrtm 489: Advanced Event Operations, Kristin Malek

UNL Faculty Course Portfolios

No abstract provided.

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 …

Investigating Student Learning And Assessment Through Group Projects In Cyaf 382: Working With Parents, Patty Kuo

UNL Faculty Course Portfolios

This course portfolio for CYAF 382: Working with Parents systematically documents its course structure, assessments, and grading. The documentation and reflection process occurred across two consecutive semesters of teaching this course. I analyzed student class performance as a function of peer evaluations and attendance. Students who had fewer unexcused absences had higher exam scores and overall course grades. Interestingly, group project grades were higher when group members had greater variance among individual effort ratings – reflecting an imbalance of group effort. I conclude the portfolio with my reflections derived from both the portfolio process and student evaluations.

Course Portfolio For Cive 361 – Highway Engineering, Libby Jones

UNL Faculty Course Portfolios

CIVE 361-Highway Engineering is a required course for all civil engineering majors at the University of Nebraska-Lincoln. The course is an introduction to transportation engineering covering vehicle and driver characteristics, geometric design, traffic operations, and transportation planning. The contents of this published course portfolio are for the Spring 2022 semester offering of CIVE 361. This course is used for formative assessment of ABET student outcomes 1, 2, 3 and 7. The alignment of the assessments used in the course and the ABET SOs were examined. Open educational resources (OERs) have been developed for this course. Data collected in 2020 was …

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 …

Biomechanical Analysis Of Athletes Sprinting With Varying Degrees Of Resistance, Michaela Ott

Honors Program: Senior Projects (Public)

Utilizing resistance methods for sprinters is a common approach to their training. In this study, six athletes from the University of Nebraska-Lincoln Women’s Track and Field Team ran a series of sprints using a resistance machine to collect data regarding the change in power output, stride length, level of trunk tilt with respect to the ground, and acceleration throughout a distance of ten meters when different amounts of resistant forces were applied to the athlete. It was hypothesized that as resistance increased, power output would increase, stride length would decrease, the runners would become more horizontal resulting in a larger …

Reimagine Descriptive Workflows: A Community-Informed Agenda For Reparative And Inclusive Descriptive Practice, Rachel L. Frick, Merrilee Proffitt

Copyright, Fair Use, Scholarly Communication, etc.

Executive Summary

The Reimagine Descriptive Workflows project convened a group of experts, practitioners, and community members to determine ways of improving descriptive practices, tools, infrastructure, and workflows in libraries and archives. The result, this community agenda, is offered to the broad library and archives community of practice. The agenda draws together insights from the convening, related research, and operational work that is ongoing in the field. All institutions hold power to make meaningful changes in this space, and all share collective responsibility.

The agenda is not a “how-to guide,” but it is constructed to instruct and chart a path toward …

“Any Lady Can Now Learn To Cut Perfect Fitting Dresses”: The Role Of Pattern Drafting Systems In The Production Of Women’S Dress, 1880–1900, Alyssa Smith

Department of Textiles, Merchandising and Fashion Design: Dissertations, Theses, and Student Research

This research conveys findings from my MA thesis research focused on pattern drafting systems for women’s garments developed between 1880 and 1900. The study builds on the seminal work of Claudia Kidwell, who divided these systems into three categories: proportional, hybrid, and direct measure. To date, the study of this textile technology and how it positioned women and sewing in both domestic and professional spheres has received little scholarly attention, but pattern drafting technology transformed the possibilities for pattern creation and proportionate measurements, especially for home sewers. It also aided in the paper pattern and ready-made clothing industries. This research, …

Migration And Trauma: Memory And The Myths Of El Otro Lado, Elva Moreno Del Rio

Department of English: Dissertations, Theses, and Student Research

This thesis is composed of two parts that scrutinize the myth of the United States

and el cuento of El Otro Lado. The first part titled, “The Illness Rooted in the American Myth” connects the U.S. myth to J. Hector St. John de Crevecoeur’s piece Letters from an American Farmer, published in 1782. In analyzing the writings of Toni Morrison, James Baldwin, and Eden E. Torres, I indentify the impact that Crevecoeur’s myth had on Black, Indigenous and other people of color. This research illustrates the physical and psychological effects that these ideologies have on the mind and body of …

A Low Jitter And Low Power Electronic Interface For Time-Of-Flight Positron Emission Tomography Silicon Photomultiplier Detectors, Matthew Romer

Department of Electrical and Computer Engineering: Dissertations, Theses, and Student Research

A time-of-flight (TOF) detection system for a silicon photomultiplier (SiPM) is designed for the purpose of improving on existing technology for applications in positron emission tomography, with an emphasis on low power and low timing jitter. A reconstruction algorithm is implemented in Matlab to demonstrate the effect of TOF on the image quality per number of source events, as compared to systems restricted to line-of-response (LOR) data only. A case study is performed on SiPM functionality, behavioral modeling, and contemporary front-end amplification designs for a SiPM detector. A charge sensitive amplifier (CSA) circuit is modified for simultaneous collection of timing …

Learning Domain Invariant Information To Enhance Presentation Attack Detection In Visible Face Recognition Systems, Jennifer Hamblin

Department of Electrical and Computer Engineering: Dissertations, Theses, and Student Research

Face signatures, including size, shape, texture, skin tone, eye color, appearance, and scars/marks, are widely used as discriminative, biometric information for access control. Despite recent advancements in facial recognition systems, presentation attacks on facial recognition systems have become increasingly sophisticated. The ability to detect presentation attacks or spoofing attempts is a pressing concern for the integrity, security, and trust of facial recognition systems. Multi-spectral imaging has been previously introduced as a way to improve presentation attack detection by utilizing sensors that are sensitive to different regions of the electromagnetic spectrum (e.g., visible, near infrared, long-wave infrared). Although multi-spectral presentation attack …

Microbiome Variation Across Populations Of Desert Halophyte Zygophyllum Qatarensis, Abdul Latif Khan, Lucas Dantas Lopes, Saqib Bilal, Sajjad Asaf, Kerri M. Crawford, Venkatesh Balan, Ahmed Al-Rawahi, Ahmed Al-Harrasi, Daniel P. Schachtman

Department of Agronomy and Horticulture: Faculty Publications

Microbial symbionts play a significant role in plant health and stress tolerance. However, few studies exist that address rare species of core-microbiome function during abiotic stress. In the current study, we compared the microbiome composition of succulent dwarf shrub halophyte Zygophyllum qatarensis Hadidi across desert populations. The results showed that rhizospheric and endosphere microbiome greatly varied due to soil texture (sandy and gravel). No specific bacterial amplicon sequence variants were observed in the core-microbiome of bulk soil and rhizosphere, however, bacterial genus Alcaligenes and fungal genus Acidea were abundantly distributed across root and shoot endospheres. We also analyzed major nutrients …

Microbiome Variation Across Populations Of Desert Halophyte Zygophyllum Qatarensis, Abdul Latif Khan, Lucas Dantas Lopes, Saqib Bilal, Sajjad Asaf, Kerri M. Crawford, Venkatesh Balan, Ahmed Al-Rawahi, Ahmed Al-Harrasi, Daniel P. Schachtman

Department of Agronomy and Horticulture: Faculty Publications

Microbial symbionts play a significant role in plant health and stress tolerance. However, few studies exist that address rare species of core-microbiome function during abiotic stress. In the current study, we compared the microbiome composition of succulent dwarf shrub halophyte Zygophyllum qatarensis Hadidi across desert populations. The results showed that rhizospheric and endosphere microbiome greatly varied due to soil texture (sandy and gravel). No specific bacterial amplicon sequence variants were observed in the core-microbiome of bulk soil and rhizosphere, however, bacterial genus Alcaligenes and fungal genus Acidea were abundantly distributed across root and shoot endospheres. We also analyzed major nutrients …

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 …

Using Quantitative Imaging For Personalized Medicine In Pancreatic Cancer: A Review Of Radiomics And Deep Learning Applications, Kiersten Preuss, Nate Thach, Xiaoying Liang, Michael Baine, Justin Chen, Chi Zhang, Huijing Du, Hongfeng Yu, Chi Lin, Michael A. Hollingsworth, Dandan Zheng

School of Biological Sciences: Faculty Publications

As the most lethal major cancer, pancreatic cancer is a global healthcare challenge. Personalized medicine utilizing cutting-edge multi-omics data holds potential for major breakthroughs in tackling this critical problem. Radiomics and deep learning, two trendy quantitative imaging methods that take advantage of data science and modern medical imaging, have shown increasing promise in advancing the precision management of pancreatic cancer via diagnosing of precursor diseases, early detection, accurate diagnosis, and treatment personalization and optimization. Radiomics employs manually-crafted features, while deep learning applies computer-generated automatic features. These two methods aim to mine hidden information in medical images that is missed by …

Recommendations For Discipline-Specific Fairness Evaluation Derived From Applying An Ensemble Of Evaluation Tools, Karsten Peters-Von Gehlen, Heinke Höck, Andrej Fast, Daniel Heydebreck, Andrea Lammert, Hannes Thiemann

Copyright, Fair Use, Scholarly Communication, etc.

From a research data repositories’ perspective, offering research data management services in line with the FAIR principles is becoming increasingly important. However, there exists no globally established and trusted approach to evaluate FAIRness to date. Here, we apply five different available FAIRness evaluation approaches to selected data archived in the World Data Center for Climate (WDCC). Two approaches are purely automatic, two approaches are purely manual and one approach applies a hybrid method (manual and automatic combined).

The results of our evaluation show an overall mean FAIR score of WDCC-archived (meta) data of 0.67 of 1, with a range of …