Digital Commons Network^™

High-Performance Small Satellites For Demanding Missions, Lance Fife

Space Dynamics Laboratory Publications

SDL Presentation on High Performance Small Satellites

Thermal Infrared Earth Resource Monitoring Instrument (Thermi) Swap Reduction, Trent Newswander, Scott Hansen, Jed Hancock, Darrel Williams

Space Dynamics Laboratory Publications

SDL Presentation on THERMI SWaP reduction

Optical Coating Characterization System (Occs), Scott Hansen, Kendall Johnson, Dean Wada, Alan Thurgood

Space Dynamics Laboratory Publications

SDL Presentation on OCCS

Structural Design & Analysis, Poti G. Doukas

Space Dynamics Laboratory Publications

Agenda

• Structural Requirements
• Deployers
• Engineering Drawings
• Verification Testing

Software Management, Space Dynamics Laboratory

Space Dynamics Laboratory Publications

Agenda

1. Software Organization Methods
2. Example Software Workflow
3. Small Sat Specific Tips

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

Radiation Hardness Drivers For Mission Success – What We Have Learned, Space Dynamics Laboratory

Space Dynamics Laboratory Publications

RHA consists of all activities undertaken to ensure that the electronics and materials of a space system perform to their design specifications throughout exposure to the mission space environment

Smallsat Pcb Engineering, Space Dynamics Laboratory

Space Dynamics Laboratory Publications

• Concept
• Design
• Build
• Lessons Learned

Calibration And Systems Engineering Collaboration, John Wilson

Space Dynamics Laboratory Publications

Introduction – Why Am I Here?

• I am a systems engineer with nearly 40 years experience in the DoD world.

• Opinions offered during tabletop discussions at CalCon 2024 showed a lack of coordination between calibration engineering and system engineering.

•Sorry, where this happens systems engineers are to blame.

• Calibration: “Calibration is configuring and verifying a measuring instrument's accuracy to ensure its readings match a known standard.” (What Is Calibration?, n.d.)

•Is this really what y’all do? I am here to learn!

• Systems Engineering: “SE is an integrative approach to help teams collaborate to understand and manage …

Preventing Mission-Ending Failure: Lessons From And Changes To The Iris Radio, Tom Russell, Dana Sorensen, Tim Nielsen

Space Dynamics Laboratory Publications

Iris Radio (v2)

– Full-duplex, X-band deep space radio

– Build for the harsh environments of deep space

• High radiation tolerance
• Cislunar/solar/Martian orbits
• Planetary surface assets

– Highly configurable

• Communications
• Ranging
• Timing
• Encryption
• Upgradeable

– Almost every delivered radio has included custom features

Atmospheric Waves Experiment (Awe) Mission Overview, Pedro Sevilla

Space Dynamics Laboratory Publications

The AWE instrument images atmospheric gravity waves from the ISS, quantifying energy and momentum fluxes into the ionosphere-thermosphere system to better understand how tropospheric weather influences space weather

Use Of Scat Dna To Estimate Coyote Abundance On A Newly Colonized Barrier Island, Sonia M. Hernandez, Michael J. Yabsley, Sarah C. Webster, Elizabeth M. Kierepka, Rochelle R. Beasley, Carly L. Landa, Heather W. Barron, Kelly Sloan, Holly Milbrandt, James C. Beasley

Human–Wildlife Interactions

Coyotes (Canis latrans) have expanded in mainland eastern North America and are known to have successfully colonized numerous islands. However, there are scarce data on the densities of coyotes in these ecosystems, in which coyotes can have substantive negative impacts. Coyotes first colonized Sanibel Island, a barrier island off the western coast of Florida, USA, in 2011, and their presence has been linked to declines in several sensitive species. However, the population size of coyotes has only been estimated from anecdotal reports and camera traps. Our goal was to estimate the size of the coyote population on Sanibel …

Rethinking Behavior - Winter 2025, Midwest Symposium For Leadership In Behavior Disorders

ReThinking Behavior Magazine

A magazine for professionals serving children and youth with behavioral needs.

Winter 2025, Volume 8, Issue 2

Implementing Reading Mastery As A Component Of Tiered Literacy Instruction, Kristen R. Rolf, Peter Ehlen, Teresa Buttars

Special Education and Rehabilitation Counseling Faculty Publications

Despite attempts at reform over the decades, many students with and without disabilities in the United States struggle to learn to read. Bear River Charter School is a K-6 public charter school in Utah that has effectively used Reading Mastery Signature Edition to teach most students to read at grade-level by the end of third grade. Data from the 2022-2023 school year show that over 80% of students in kindergarten, over 70% of students in Grades 1 and 2, and over 90% of students in Grade 3 met grade-level reading benchmarks by the end of the year. This chapter describes …

Hearing From Working Nurses: Incorporating Real-World Knowledge Practices Into The Framework To Better Instruct Tomorrow’S Healthcare Professionals, Anne R. Diekema, Elizabeth (Betsy) S. Hopkins, Britt Fagerheim, Brandon Patterson, Nena Schvaneveldt

Library Faculty & Staff Publications

There is a certain duality to the role of librarians in higher education as the job requires preparing students for their current academic work, such as doing research for writing papers, while at the same time preparing students for their future professional information work.¹ Librarians seeking guidance on teaching information literacy more comprehensively are left to study the professional standards of the targeted professional group,² and find or carry out research on these practitioners.³ Synthesizing and translating these findings into instructional approaches while staying true to existing information literacy standards, however, can be challenging.⁴ In this …

2025 Finance Calendar, Amanda Christensen, Melanie Jewkes, Andrea Schmutz, Vincenza Vicari-Bentley, Kelan Combe, Rochelle Allen, Lauren Olsen, Jenny Weller

All Current Publications

The 2025 Financial Calendar outlines small monthly steps to improve your finances over the year.

Identifying The Types Of Collective Engagement Structures That Manifest In Middle Grade Mathematics Classrooms, Tye G. Campbell, Michael A. Lawson, Erin Rich, Sheunghyun Yeo, W. Boden Robertson

Teacher Education and Leadership Faculty Publications

While the potential of collaborative problem solving in mathematics is well known, facilitating effective group work is often challenging. One reason for this persistent difficulty educators face with collaborative problem solving can be traced to research and practice models that are not well-equipped to attend to the complexity of group work. The emerging construct of “collective engagement structures” represents one novel framework designed to attend to the complexity and variation of individual and group experience in collaborative problem solving. This study extends initial theorizing on collective engagement by offering descriptive accounts of the different types of collective engagement structures that …

Function Over Form: The Benefits Of Aspen As Surrogate Brood-Rearing Habitat For Greater Sage-Grouse, Michel T. Kohl, Charles P. Sandford, Paul C. Rogers, Renee Chi, Terry A. Messmer, David K. Dahlgren

Aspen Bibliography

Species of conservation concern are often habitat specialists, posing significant risk to those species when specific plant communities are threatened. As a result, practitioners habitually focus conservation efforts on these communities while ignoring ecological mechanisms that explain the wildlife–plant relationships. In doing so, practitioners may overlook alternative vegetation communities that could maintain wildlife populations under alternative conditions (e.g., climate change). Here, we term these areas surrogate habitat, defined as vegetation communities or resource sites that provide similar critical resources as conventional sites, and assess their potential for conservation using a case study of greater sage-grouse (Centrocercus urophasianus) on …

Changes In Climate And Their Implications For Cattle Nutrition And Management, Bashiri Iddy Muzzo, R. Douglas Ramsey, Juan J. Villalba

Wildland Resources Faculty Publications

Climate change is a global challenge that impacts rangeland and pastureland landscapes by inducing shifts in temperature variability, precipitation patterns, and extreme weather events. These changes alter soil and plant conditions, reducing forage availability and chemical composition and leading to nutritional stress in cattle. This stress occurs when animals lack adequate water and feed sources or when these resources are insufficient in quantity, composition, or nutrient balance. Several strategies are essential to address these impacts. Genetic selection, epigenetic biomarkers, and exploration of epigenetic memories present promising avenues for enhancing the resilience of cattle populations and improving adaptation to environmental stresses. …

Thriving Hives: Cleaning And Sterilizing Beekeeping Equipment, Brynn Meredith, Bailey Parkinson, Andree' Walker Bravo

All Current Publications

Honeybees are susceptible to many types of diseases and parasites, most of which can spread easily through equipment. Your hives' health and safety depend on your attention to detail and efforts to keep your equipment clean and sterile. This fact sheet lists several methods for sterilizing beekeeping equipment. The list is not exhaustive but includes some of the most cost-effective options.

Early Detection Of Pediatric Permanent Hearing Loss: A Population-Based Retrospective Cohort Study, Janet Olds, Elizabeth M Fitzpatrick, Stuart G. Nicholls, Laura C. Rosella, Sarah G. Spruin, Marie M. Pigeon, Joanne M. Whittingam, James Macdougall, David M. Schramm, Eric I. Benchimol

Journal of Early Hearing Detection and Intervention

Evidence has indicated that Early Hearing Detection and Intervention (EHDI) programs have lowered the age of identifying permanent hearing loss (PHL) in childhood, a first step to intervention. However, limited research has compared the age of diagnosis before and after implementation in one jurisdiction across the full range of PHL.

Methods: Children diagnosed with PHL in Ottawa, Canada were identified from the Child Hearing Lab database at the Children’s Hospital of Eastern Ontario and linked to Ontario health administrative data. Age of identification of PHL of children born in the pre-infant hearing program (IHP) era (1991-2002) was compared to those …

Knowledge And Attitude About New Born Hearing Screening Among Gynaecologists: Pre And Post Awareness Session Analysis, Khadija S. Jamnagarwala Miss

Journal of Early Hearing Detection and Intervention

Background: The knowledge and attitudes of healthcare professionals, particularly gynaecologists, significantly impact the success of newborn hearing screening (NHS) programs. Aim: Aim of the study was to explore knowledge and attitudes related to NHS among gynaecologists and factors related to it. Method: It was conducted in two phases. The first phase involved the development of the awareness material and questionnaires assessing knowledge & attitude about NHS during the pre & post-awareness sessions. In the second phase, 45 gynaecologists filled out the questionnaire after attending the awareness session on NHS. Results and Conclusion: The gynaecologists displayed low to moderate awareness of …

Supporting Entry-Level Speech-Language Pathologists Who Serve Children Who Are Deaf Or Hard-Of-Hearing In Early Intervention, Kristina Blaiser, Hannah Daw, Blair Richlin, Jenn Gallup

Journal of Early Hearing Detection and Intervention

The aim of this study was to increase understanding of what is considered key information for entry-level speech-language pathologists (SLPs) serving children who are DHH. Specifically, this study explored skills and strategies that could be integrated into SLP graduate curriculum to increase entry-level provider confidence and knowledge. An online survey was distributed to providers of the DHH within the United States and included a) key skills and strategies recommended for entry-level providers serving children who are DHH b) barriers experienced by entry-level providers and c) demographics. The skills and strategies that emerged as most important according to participants (n …

Hyperbilirubinemia Requiring Exchange Transfusion As A Risk Factor For Later-Onset Hearing Loss, Susan Wiley, Vivian Kaul, Oliver F. Adunka, Lynn Iwamoto, Robert C. Nutt, Kirsten R. Coverstone, Patricia Burk

Journal of Early Hearing Detection and Intervention

Background: Previous position statements by the Joint Committee on Infant Hearing have recommended the presence of hyperbilirubinemia requiring exchange transfusion as a risk factor for childhood hearing loss. This article examines the strength of the evidence to support this recommendation.

Methods: A PubMed® query using the keywords hyperbilirubinemia and hearing loss identified 77 original papers. All abstracts were reviewed for consideration of full article review and 44 articles were reviewed for consideration of inclusion and grading with 21 articles graded using structured evidence-grading forms. Nineteen articles were included to provide supporting rationale for recommendations. Evidence grading was completed by recommendation. …

Journal Of Early Hearing Detection And Intervention: Volume 9, Issue 2, Pages 1-55

Journal of Early Hearing Detection and Intervention

No abstract provided.

Act For Ocd: An Example Of Act And Values-Based Exposures, Leila K. Capel, Michael P. Twohig

Psychology Faculty Publications

Exposure exercises as seen in cognitive behavioral therapy (CBT) and exposure and response prevention (ERP) are standard in the treatment of obsessive-compulsive disorder (OCD). In the last two decades, additional research has been conducted on acceptance and commitment therapy (ACT) and the ways that exposure exercises are conducted from an ACT model. Empirical support for conducting exposures from an ACT model exists. Group level statistics suggest that ACT with ACT-based exposures is as effective as traditional ERP or CBT. A key component of ACT and values-based exposures is the focus on teaching psychological flexibility to allow for engagement with values-based …

Geographical And Methodological Trends In Esm And Jrme From 2014–2023, Tye Campbell, Sandra Miles, Sindura Kularajan

Teacher Education and Leadership Faculty Publications

The mathematics education research landscape has changed significantly over the last decade. Not only have research topics within mathematics education changed, but there have also been changes in geographic representation of research, methodologies used, and characteristics of research samples. It is important to monitor these changing trends to understand past contributions to mathematics education research and evaluate the current trajectory. In this study, we explored how the field is evolving in relation to geographic representation of research and method by analyzing articles published in Educational Studies in Mathematics (ESM) and Journal for Research in Mathematics Education (JRME) over the last …

Characterizing Teacher Support Of Debugging With Physical Computing: Debugging Pedagogies In Practice, Colin Hennessy Elliott, Jessie Nixon, Alexandra Gendrau Chakarov, Jeffrey B. Bush, Michael J. Schneider, Mimi Recker

Publications

Objectives. Physical computing systems are increasingly being integrated into secondary school science and STEM instruction, yet little is known about how teachers, especially those with little background and experience in computing, help students during the inevitable debugging moments that arise. In this article, we describe a framework, comprising two dimensions, for characterizing how teachers support students as they debug a physical computing system called the Data Sensor Hub (DASH). The DASH enables students to program sensors to measure, analyze, and visualize data as they engage in science inquiry activities

Participants. Five secondary school teachers implemented an inquiry-oriented instructional …

Safety, Immunogenicity, And Efficacy Of A Recombinant Vesicular Stomatitis Virus Vectored Vaccine Against Severe Fever With Thrombocytopenia Syndrome Virus And Heartland Bandavirus, Philip Hicks, Tomaz B. Manzoni, Jonna B. Westover, Raegan J. Petch, Brianne Roper, Brian B. Gowen, Paul Bates

Animal, Dairy, and Veterinary Science Faculty Publications

Background: Severe fever with thrombocytopenia syndrome virus (STSV) is a recently emerged tickborne virus in east Asia with over 18,000 confirmed cases. With a high case fatality ratio, SFTSV has been designated a high priority pathogen by the WHO and the NIAID. Despite this, there are currently no approved therapies or vaccines to treat or prevent SFTS. Vesicular stomatitis virus (VSV) represents an FDA-approved vaccine platform that has been considered for numerous viruses due to its low sero-prevalence in humans, ease in genetic manipulation, and promiscuity in incorporating foreign glycoproteins into its virions. Methods: In this study, we developed a …

Constructing And Testing Of Photomultiplier Tubes For Coincidence Experiments, Christepher Zamora

Physics Capstone Projects

Muons are particles that can be created by the collision and decay of cosmic rays with the upper atmosphere. Many detectors have been manufactured to detect these particles. This paper describes how muons can be detected. It details the process of constructing and testing of scintillation photomultiplier tubes. This paper also details what was observed during the construction and what was done by the experimenter to correct perceived issues.