Digital Commons Network^™

Species Differences In The Biotransformation Of Aflatoxin B1: Primary Determinants Of Relative Carcinogenic Potency In Different Animal Species, David L. Eaton, David E. Williams, Roger A. Coulombe

Animal, Dairy, and Veterinary Science Faculty Publications

It has been known since the early days of the discovery of aflatoxin B1 (AFB1) that there were large species differences in susceptibility to AFB1. It was also evident early on that AFB1 itself was not toxic but required bioactivation to a reactive form. Over the past 60 years there have been thousands of studies to delineate the role of ~10 specific biotransformation pathways of AFB1, both phase I (oxidation, reduction) and phase II (hydrolysis, conjugation, secondary oxidations, and reductions of phase I metabolites). This review provides a historical context and substantive analysis of each of these pathways as contributors …

Key Virulence Factors Responsible For Differences In Pathogenicity Between Clinically Proven Live-Attenuated Japanese Encephalitis Vaccine Sa14-14-2 And Its Pre-Attenuated Highly Virulent Parent Sa14, Byung-Hak Song, Sang-Im Yun, Joseph L. Goldhardt, Jiyoun Kim, Young-Min Lee

Animal, Dairy, and Veterinary Science Student Research

Japanese encephalitis virus (JEV), a neuroinvasive and neurovirulent orthoflavivirus, can be prevented in humans with the SA₁₄-14-2 vaccine, a live-attenuated version derived from the wild-type SA₁₄ strain. To determine the viral factors responsible for the differences in pathogenicity between SA₁₄ and SA₁₄-14-2, we initially established a reverse genetics system that includes a pair of full-length infectious cDNAs for both strains. Using this cDNA pair, we then systematically exchanged genomic regions between SA14 and SA₁₄-14-2 to generate 20 chimeric viruses and evaluated their replication capability in cell culture and their pathogenic potential in …

Impact Of Arctic And Antarctic Sudden Stratospheric Warmings On Thermospheric Composition, Jiarong Zhang, Jens Oberheide, Nicholas M. Pedatella, Guiping Liu

All Physics Faculty Publications

Using the Global‐scale Observations of the Limb and Disk (GOLD) and the Global Ultraviolet Imager (GUVI), we examine the impact of sudden stratospheric warmings (SSWs) on the changes of thermospheric composition during the 2018–2019 and 2020–2021 Arctic SSWs and the 2019 Antarctic SSW. Contributions of planetary waves, gravity waves, and migrating tides are assessed by performing numerical experiments with the NSF National Center for Atmospheric Research (NCAR) vertically extended version of the Whole Atmosphere Community Climate Model (WACCM‐X). The variations in the column integrated O and N2 density ratio (∑ O/N₂) are generally similar among WACCM‐X, GOLD, …

We Need Deep Theories Of Virtues: Four Principles For Advancing Research On Virtues In Positive Social Science, David S. Bright, Jason M. Stansbury, Bradley A. Winn

Marketing and Strategy Faculty Publications

This article aims to help Positive Social Science (PSS) researchers develop theories of virtues, whether of single, discrete virtues, or several virtues considered together. We argue that a weak virtue theory assumes a virtue consists of single constructs, whereas a deep virtue theory assumes a virtue is an integrated system of constructs. We briefly review indicators of weak theory in the PSS literature: definitional divergence, valence confusion, and conceptual incommensurability. Drawing from the field of Virtue Ethics, we suggest four essential attributes of a virtue that should guide the development of deep virtue theory. Any virtue is (1) holistic, in …

The Continuing Search For A Better Mouse Trap: Two Tests Of A Practical, Low-Cost Camera Trap For Detecting And Observing Small Mammals, Raymond D. Dueser, John H. Porter, Nancy D. Moncrief

Wildland Resources Faculty Publications

The advent of digital wildlife cameras has led to a dramatic increase in the use of camera traps for mammalian biodiversity surveys, ecological studies and occupancy analyses. For cryptic mammals such as mice and shrews, whose small sizes pose many challenges for unconstrained digital photography, use of camera traps remains relatively infrequent. Here we use a practical, low-cost small mammal camera platform (the “MouseCam”) that is easy and inexpensive to fabricate and deploy and requires little maintenance beyond camera service. We tested the MouseCam in two applications: a study of small mammal species composition on two transects across a barrier …

Faculty Senate Agenda January 6, 2025, Utah State University

Faculty Senate & Faculty Senate Executive Committee

• 3:00 Call to Order
• Approval of Minutes
• 3:05 University Business
• 3:20 New Business
• Policy 1001 | Executive Summary | Procedures for Policy
• 3:50 Faculty Senate Business
• State Statute 53B
• 4:00 Information
• EPC Report
• Policy 301 - Employee Position Types
• Policy 368 - Phased Retirement Program
• 4:15 Reports
• Council on Teacher Education Annual Report
• Scholarship Annual Report
• 4:25 Old Business
• Adjourn: 4:30 pm

The Utah Statesman, January 6, 2025, Utah State University

The Utah Statesman

Weekly student newspaper of Utah State University in Logan.

Selectivity Of Invasive Species Suppression Efforts Influences Control Efficacy, Rae Fadlovich, Kevin Landom, Timothy E. Walsworth

Watershed Sciences Student Research

1. Highly fecund invaders and size-selective suppression efforts often limit the effectiveness of invasive species control programs, as compensatory processes can allow suppressed populations to recover. While population models have long explored how demographic characteristics impact management feasibility, there is a growing need to evaluate how the selectivity of suppression efforts might impact the long-term feasibility of control.
2. We use a simulation framework that integrates age-based selectivity to evaluate the effect of increasing the range of ages selected for during harvest-based invasive species control. We applied this approach to common carp in Utah Lake, the location of one of the world's …

Spatiotemporal Synchrony Of Climate And Fire Occurrence Across North American Forests (1750–1880), Ellis Margolis, Andreas Wion, John Abatzoglou, Lori Daniels, Donald Falk, Chris Guiterman, James Johnston, Kurt Kipfmueller, Charles Lafon, Rachel Loehman, Maggie Lonergan, Cameron Naficy, Marc-André Parisien, Sean Parks, Jeanne Portier, Michael Stambaugh, Ellen Whitman, A. Park Williams, Larissa Yocom

Wildland Resources Faculty Publications

Aim: Increasing aridity has driven widespread synchronous fire occurrence in recent decades across North America. The lack of historical (pre-1880) fire records limits our ability to understand long-term continental fire-climate dynamics. The goal of this study is to use tree-ring reconstructions to determine the relationships between spatiotemporal patterns in historical climate and widespread fire occurrence in North American forests, and whether they are stable through time. This information will address a major knowledge gap required to inform projections of future fire.

Location: North American Forests.

Time Period: 1750–1880 CE.

Major Taxa Studied: Trees.

Methods: We applied regionalisation methods to tree-ring …

Evaluation Of Stability And Controllability Of The Multiple Trim Solutions For A Bio-Inspired Rotating Empennage Fighter Aircraft, Benjamin C. Moulton, Christian R. Bolander, Douglas F. Hunsaker

Mechanical and Aerospace Engineering Student Publications and Presentations

Aircraft with non-traditional actuators tend to have multiple or infinite trim solutions for a single flight condition. For a given flight condition the bio-inspired rotating empennage fighter aircraft has multiple distinct trim solutions with varying tail rotation angles. In the present work these trim solutions are evaluated from various perspectives including: minimum drag, dynamic stability, controllability, and degree of controllability. The results of these analyses can be used to further constrain a trim solver routine such that a trim solution is found meeting a desired criterion. The purpose of the present paper is to evaluate the multiple trim solutions for …

Development Of Interface-Specific Two-Dimensional Vibrational-Electronic (I2d-Ve) Spectroscopy For Vibronic Couplings At Interfaces, Yuqin Qian, Zhi-Chao Huang-Fu, Jesse B. Brown, Yi Rao

Chemistry and Biochemistry Faculty Publications

Bulk 2D electronic–vibrational (2D-EV) and 2D vibrational–electronic spectroscopies (2D-VE) were previously developed to correlate the electronic and vibrational degrees of freedom simultaneously, which allow for the study of couplings between electronic and vibrational transitions in photo-chemical systems. Such bulk-dominated methods have been used to extensively study molecular systems, providing unique information such as coherence sensitivity, molecular configurations, enhanced resolution, and correlated states and their dynamics. However, the analogy of interfacial 2D spectroscopy has fallen behind. Our recent work presented interface-specific 2D-EV spectroscopy (i2D-EV). In this work, we develop interface-specific two-dimensional vibrational–electronic spectroscopy (i2D-VE). The fourth-order spectroscopy is based on a …

Education Policy Committee Agenda January 2, 2025, Utah State University

Educational Policies Committee

• Approval of Minutes
• Subcommittee Reports
• Other Business
• Adjourn: 4:00pm

Curriculum Subcommittee Agenda January 02, 2025, Utah State University

Educational Policies Committee

• Approval of Minutes
• Program Proposals
• Semester Course Approval Reviews
• Other Business
• Adjourn

Effect Of Ph And Iron Chelate On The Growth Of Basil And Soybean In Soilless Media, Christian Baker, Bruce Bugbee

Nutrients

Iron (Fe) deficiencies are common in alkaline root zones and can cause chlorosis and reduce growth. The most common approach to prevent deficiency is using synthetic chelates that keep iron in solution at high pH. Here we report the effects of pH and chelate type on the development of chlorosis and biomass in soybeans and basil. We grew the plants at a pH ranging from 6.0-7.8. Fe was chelated with either a less expensive EDTA chelate or a more expensive EDDHA chelate. There was no significant difference between chelates at pH 6.0 in either soybeans or basil. In soybeans, there …

Idioms Are Indeed The Yellow Of The Egg: A Lesson Plan For Introducing German Idioms, Janelle Carter

World Languages and Cultures Activities and Assignments

Objectives:

• Introduce the linguistics of idioms.
• Assist students in identifying the appropriate situation to use a given idiom, contributing to students’ social linguistic and social competence (Parks, p. 82).
• Assist students in crossing the threshold of being an observer of the language and associated cultures, into being a participant. They will be able to “press their thumbs” for luck and understand more than just train station.

Comparison Of Co-Located Mid-Latitude Sporadic E And Simone Wind Observations, Ivana Molina, Kenneth Obenberger, Jorge Chau, Matthias Clahsen

Space Dynamics Laboratory Publications

Sporadic E are localized layers of enhanced metallic ionization that form in the E region of the ionosphere (Mathews, 1998). They are usually observed between 95 and 120 km altitude with a thickness in altitude ranging from ~100 m to a few kilometers. Studying these layers is important, as their characteristics and variability impact the propagation of HF radio waves. At mid-latitudes, the generation of sporadic E is most often explained by the wind shear theory, where these layers form due to the convergence of ions generated by vertical shears in the horizontal components of the neutral wind. The primary …

Atms And Cris Geolocation, Mark Esplin, Kris Robinson, Ben Esplin, Nephi Grant, Deron Scott, Likun Wang

Space Dynamics Laboratory Publications

Contents

• Summary of Suomi NPP sensors CrIS, ATMS, and VIIRS 
• Geolocation methods 
• Software optimization
• CrIS geolocation results
• ATMS geolocation results
• Conclusions

3. A Scholarly Approach To Excellence In Teaching: Identifying, Framing, And Planning Faculty Work For Success, Letizia Guglielmo

Documenting Teaching Excellence

The scholarly conversation surrounding excellence in teaching, including defining and documenting excellence, is both robust and ongoing in the academic literature across disciplines. My own experience as a teacher-scholar, program director, department chair, and faculty developer has demonstrated that often, one of the most significant challenges instructors face during required reviews is making their teaching—and, in particular, their excellence in teaching—visible and tangible to colleagues outside of their classroom spaces, including fully articulating and demonstrating the why and how of that teaching. Although some institutions or individual units (i.e., departments or programs) may provide explicit descriptions of and expectations for …

F-Layer Parameters Derived By Airglow Emissions At Pituffik Sb, Greenland, Jessica Norrell, Ivana Molina, Michael Negale, Jeffrey Holmes

Space Dynamics Laboratory Publications

Atomic oxygen airglow has long been used as tracer for the peak height and electron density of the F-layer (e.g. Sahai et al., 1981). Tinsley and Bittencourt (1975) described a method by which OI airglow is used to determine F-layer parameters. They found that the square root of the column emission rate of an optically thin layer created by radiative recombination emission was proportional to the peak electron density of the F-layer.

An all-sky imager (ASI) was recently installed at Pituffik, Greenland (76.51˚N, 68.74˚W), with four filters relevant to this study: 5725, 6300, 7715 and 7774 Å. We have used …

Command & Data Handling, Firmware & Software, Utah State University Space Dynamics Laboratory

Space Dynamics Laboratory Publications

UNP Presentation on Command & Data Handling, Firmware & Software

Arctic Over-The-Horizon-Radar Ontic (Arothron): A Model Definition For The Support Of Radio Frequency Radars, J. Vincent Eccles, John Retterer, Jeffrey M. Holmes

Space Dynamics Laboratory Publications

The high-latitude and subauroral ionosphere regions are organized and disorganized by a number of competing processes of ionization, convective transport, and plasma instabilities. The complexity makes it difficult for physics-based models or data-assimilation methodologies to specify the ionosphere with sufficient resolution and accuracy to adequately support radio signal technologies during space weather disturbance events. External drivers of ionospheric ionization include solar EUV and X-ray irradiance, medium and energetic particle precipitation, and solar proton events. External drivers of plasma transport include convective electric fields for high density plasma at mid-latitudes (e.g., storm enhanced densities or SEDs) and parallel plasma motion driven …

Requirements And C&Dh Design, Space Dynamics Laboratory

Space Dynamics Laboratory Publications

• What is it?
• Processor Selection
• CDH Hardware
• OS Selection
• Memory - Radiation
• Memory - Radiation Mitigation
• Memory - Partitions
• Memory - File System
• System Startup
• Startup Stages
• Software Start-up
• Serial Protocol
• I2C / One Wire Communication Tips
• Fault Handling: Watchdog Timer
• CDH Watchdog (Simple)
• CDH Watchdog (Use Case)
• Watchdog Timer Tips
• Synchronizing and Managing Time

Documenting Teaching Excellence, Karin Dejonge-Kannan, Travis N. Thurston, Amanda Deliman, Amanda Morris, Anna Kuthy, Anne Cook, Beth Buyserie, Bethany B. Stone, Caroline Wienhold, Casandra E. Harper, Chris Kilgore, Cynthia Korpan, Elisabeth Schussler, Ferlin Mcgaskey, Gabrielle Stecher Woodward, Hannah Mae Lewis, James Agutter, Janette R. Hill, Jeff Spears, Jim Lamuth, Jordan Shipley, Kate Tregloan, Kim Hales, Letizia Guglielmo, Melissa E. Ko, Micael Morrone, Miranda Yaggi Rodak, Peggy Brickman, Raoul A. Mulder, Shannon M. Sipes, Sharon Lyman, Shihua Brazill, Stephen A. Klien, T. Adam Halstrom, Terri A. Dunbar, Victoria Mondelli, Vijay R. Kannan, Virginia Stormer

Documenting Teaching Excellence

Before we embark on a brief overview of how the book is structured and what it contains, we wish to draw readers’ attention to the sculpture on the cover of this book, and to the word “vital” in the subtitle of this book.

Open Educational Resources For And As Assessment, Eliana Elkhoury, Jako Olivier, Travis N. Thurston, Morgan Barker, Steven Clontz, Will Cross, Michael Tadeusz Dabrowski, Teresa Focarile, Hillary Fox, Angela George, Sharona Krinsky, Drew Lewis, Erin Mckenney, Lauren Mcmillan, Nalanda Roy, Zoë Soon, James Thibeault, David Tully, Lydia Watson, Sam Winemiller

Open Educational Resources For and As Assessment

The need to rethink assessment in higher education has become increasingly urgent due to the shift to remote teaching during the COVID-19 pandemic and the recent introduction of various generative artificial intelligence (GenAI) tools. Globally, instructors are called to redesign their assessment practices to make them more innovative, authentic, and empowering.

Phase Change Cells, T. Shane Topham, Gail Bingham, Harry Latvakoski, Mike Watson

Space Dynamics Laboratory Publications

Outline

• Phase Change Cell Introduction
• Summary of ISS Phase Change Cell Experiments
• Ground Cell Design Improvements and Test Results

Feasibility Of Producing Non-Structural Wood Products Using Trembling Aspen Lumber, Mengyuan Zhang

Aspen Bibliography

Trembling aspen (Populus tremuloides) is abundant in Canada but underutilized in non-structural solid wood products.This study was aimed at evaluating the feasibility of using aspen lumber to produce flooring, moulding, and siding. The shrinkage, surface roughness, and wettability of aspen wood were tested. The surface hardness, screw withdrawal resistance, colour change, and dimensional stability of there products fabricated were examined. The wood yield of each product was analyzed. It was found that aspen showed superior machinability and wettability to silver maple and yellow poplar. Aspen flooring had a Brinell hardness of 13.47 MPa, 60% lower than silver maple. …

13. Mentorship Matters: Documenting The Unseen Impact Of Instructor-Student Relationships, Jeff Spears, Amanda Deliman, Hannah Mae Lewis, Jim Lamuth, Kim Hales

Documenting Teaching Excellence

This chapter explores the critical yet often unrecognized role of documenting instructor mentorship as a core component of teaching excellence in higher education. Mentorship encompasses a range of instructor-to-student interactions, including academic guidance, psychosocial support, research support (graduate and undergraduate), and career exploration for students (DeAngelo, Mason, & Winters, 2016; Thiry & Laursen, 2011). Despite its importance, mentorship is rarely documented comprehensively in teaching documentation portfolios (Ocobock et al., 2022). By systematically capturing the multifaceted impacts of mentorship, instructors enhance their teaching portfolio and contribute to the broader discourse on teaching excellence. This chapter aims to empower instructors to demonstrate …

14. Loops, Badges, And Remixes: How Ctls Support Documenting Scholarly Teaching, Travis N. Thurston

Documenting Teaching Excellence

College instructors today face mounting pressure to document and demonstrate teaching excellence, but too often they confront ambiguous requirements disconnected from teaching values. However, what if the future of scholarly teaching depended on making instructors feel visible, validated, and valued in how their teaching is documented and shared? In the current climate, where burnout and disconnection run high, instructors need more than compliance checklists, they need structures of support that affirm their professional identity and invite them into a community of inquiry to support scholarly teaching.

15. Documenting Teaching Excellence: Applying Universal Design For Learning (Udl) In Communication Courses, Shihua Brazill

Documenting Teaching Excellence

As a professor in communications, I know firsthand the challenges and rewards of teaching diverse students in courses such as Presenting Technical Information, Public Speaking, Interpersonal Communication, and Intercultural Communication. These courses demand not only mastery of content but also the ability of students at varying levels of comfort and expertise to communicate effectively using a variety of media. My approach to teaching has been heavily influenced by the Universal Design for Learning (UDL) framework, which I have found to be an invaluable tool for creating inclusive, engaging, and dynamic learning environments. UDL has become essential to my pedagogy because …

16. Confronting "I Just Don't Have Time": An Argument For Seeking And Documenting Professional Learning, Sharon Lyman, Karin Dejonge-Kannan

Documenting Teaching Excellence

We confess our teaching is not always exemplary and our students often struggle to learn. We argue that intentionally pursuing professional learning is the only way to improve our teaching, and that documenting this learning is imperative when we make the case for teaching excellence. This chapter will examine the common lament of “I just don’t have time” for professional learning, followed by a discussion of how to exchange this self-sabotaging notion for a self-sustaining alternative, and a description of the benefits of documenting professional growth. The aim of this chapter is three-fold: to argue that “I just don’t have …