Digital Commons Network^™

Responses Of Medical Cannabis To Daily Light Integrals Higher Than Summer Sunlight: Yield, Morphology, And Quality, James D. Nielson

All Graduate Theses and Dissertations, Fall 2023 to Present

Cannabis sativa L. is a crop with growing medical and commercial significance. However, cannabis is not as well studied or understood as many of the most common crops. A novel area of research surrounds how much light the plant can tolerate or use to keep increasing flower yield. In agriculture, light intensity is often measured by how many light particles interact with a given area in a second, referred to as photosynthetic photon flux density (PPFD). For example, at Utah State University in Logan, Utah, during the peak of summer, the sun's light intensity can reach about 2000 μmol·m^{-2 …}

Dual Mechanisms Of Salinity Tolerance In Wheat Germplasm Lines W4909 And W4910, Richard R.-C. Wang, Steven S. Xu, Thomas A. Monaco, Matthew D. Robbins

Forage and Range Research Laboratory Publications

Soil salinity adversely affects plant growth and development, reducing the yield of most crops, including wheat. The highly salt-tolerant wheat germplasm lines W4909 and W4910 were derived from a cross between two moderately salt-tolerant lines, the Chinese Spring (CS)/Thinopyrum junceum disomic addition line AJDAj5 (AJ) and the Ph-inhibitor line (Ph-I) derived from CS/Aegilops speltoides. Molecular markers for gene introgressions in W4909 and W4910 were not reported. Four sequence-tagged site (STS) molecular markers of Ph-I were developed and tested in the above-mentioned lines and the F₂ progenies of the two crosses, Anza (AZ) x 4740 (sib of …

The Utah Statesman, November 25, 2024, Utah State University

The Utah Statesman

Weekly student newspaper of Utah State University in Logan.

Establishing A Baseline To Assess Impact Of Restoration Actions Reconnecting Bear Lake Tributaries To Increase Resilience And Abundance Of Native Fishes, Timothy E. Walsworth, Tyler Coleman, James Derito, Phaedra Budy

Watershed Sciences Faculty Publications

Stream fragmentation due to the construction of dams, diversions, and road crossing culverts have limited the ability of native migratory fishes to access the distinct habitats required to complete their life history, contributing to widespread declines in abundance and distribution. The Bear Lake Cutthroat Trout (Oncorhynchus virginalis spp., recently reclassified from O. clarkii), represent a unique adfluvial life history variant, living in the lake and migrating up tributary streams to spawn. However, development of water resources and construction of roads in the valley surrounding Bear Lake reduced their ability to access their historic spawning grounds, leading to …

Practitioners' Needs For Addressing The Challenges Of Sea-Level Rise—A Qualitative Assessment, D. Hirschfeld, K. M. Archie, E. Mateo, J. C. Arnott, J. A. Vano

Landscape Architecture and Environmental Planning Faculty Publications

Practitioners at the local and regional scale are under increased pressure to reduce risks to people and property posed by the threats of sea‐level rise (SLR) and associated impacts. To achieve this, a dialog between practitioners and scientists is imperative. Current research documents impacts of SLR, evaluates local SLR adaptation activities, identifies barriers to action, and works to assess local adaptive capacity. Despite this work, there has been little qualitative assessment of practitioners' needs when it comes to translating SLR science into local changes. To fill this gap, we used a combination of semi‐structured interviews and surveys. The interviews revealed …

Understanding The Teen Brain And Building Strong Relationships: A Foundation For Supporting Healthy Decisions, Josie Hatch, Ashley Yaugher, Christina Pay, Cris Meier

All Current Publications

This fact sheet overviews the importance of strong caregiver relationships with youth to support healthy decision-making.

Revisiting Charles Perrault’S Iconic “Bluebeard” Serial Killer In Modern French Variants, Christa Catherine Jones

World Languages and Cultures Faculty Publications

“Bluebeard” (ATU 321: Maiden-Killer), a fairy tale about a wealthy noble man and serial killer, is the most gruesome of Charles Perrault’s fairy tales. Bluebeard epitomizes evil and horror. In Perrault’s tale, Bluebeard’s evilness is linked to patriarchy and power, as symbolized by the villain’s iconic blue beard. Historically linked to Henry VIII (1491–1547), King of England, Bluebeard has also been associated with Breton commander Gilles de Rais who was hanged for sorcery and satanic abuse. This article examines how contemporary francophone “Bluebeard” variants refashion and redefine evil and whether they contain any new morals linked to evilness. Do …

Fact Sheet For Parents: What You Need To Know About Adderall, Aaron Hunt, Gabriela Murza, Alyssa Ferrin

All Current Publications

This fact sheet provides information about what Adderall is used for, how it can be misused, and what parents can do to talk to their kids about appropriate use.

Quasi-Static Indentation Characteristics Of Foam-Filled Sandwich Composite Structures With Additively Manufactured Cfrp And Gfrp Corrugated Cores, S.Z.H. Shah, Juhyeong Lee, Khurram Altaf, M. Mohammad, M.Z. Hussain, R.S. Choudhry

Mechanical and Aerospace Engineering Faculty Publications

This paper presents an experimental investigation on the quasi-static indentation performance of polyurethane (PU) foam-filled carbon fibre-reinforced polymer (CFRP) and glass fibre-reinforced polymer (GFRP) corrugated sandwich composite structures (SCSs) under different indenter tip geometries (conical, trapezoidal, hemispherical, pyramidal, and cylindrical shapes). The SCSs were produced using hybrid manufacturing methods: (1) the facesheets were fabricated using the vacuum-assisted resin infusion (VARI) process, (2) the CFRP and GFRP corrugated cores were additively manufactured using the fused filament fabrication (FFF) process, and (3) the self-expanding PU foam-filled the open spaces in the core. The results elucidated that the indenter tip geometry and core …

Body Condition Scoring For Sheep, Abigail Johnson, Reganne K. Briggs, Chad Page

All Current Publications

Body condition scoring is a helpful tool for sheep producers to use to evaluate the status of their flock. This fact sheet illustrates how to condition score sheep and the importance of condition scoring on production.

The Utah Statesman, November 18, 2024, Utah State University

The Utah Statesman

Weekly student newspaper of Utah State University in Logan.

Unlocking Stem Pathways: Revealing Stem Choices And Science Teachers Empowering Black Queer Students, Arsene Frederic Jr., Madison Fitzgerald-Russell, William Shelton, Mario I. Suárez, Jason C. Garvey

Teacher Education and Leadership Faculty Publications

Despite efforts to address racial disparities in STEM fields, little attention has been paid to the experiences and aspirations of queer and trans Black (QT Black) students in grades K-12. This study explored whether there were any significant differences in the choice of STEM majors between QT Black students and non-QT Black students. We found that Black QT students are less likely to choose STEM majors. Additionally, we found significant differences in science teachers’ perceptions of teaching, comparing between QT Black and non-QT Black students. Finally, we found that several factors predicted science-teacher perception of collective responsibility, perceptions of content …

Chasing A Little-Known Fairy Bee (Perdita Meconis) In A Dynamic Desert Landscape, Sarit Chanprame, Colleen Meidt, Terry Griswold, Joseph S. Wilson, Kelsey K. Graham

Biology Student Research

The Mojave poppy bee, Perdita meconis Griswold, is a small fairy bee endemic to the eastern Mojave Desert, known to be associated with the Las Vegas Bearpoppy, Arctomecon californica. Because of the reported decline in populations of P. meconis, it has been targeted for protection under the Endangered Species Act. Here, we present the results of a 3-year study investigating the current distribution and floral preferences of P. meconis in Clark County, Nevada. We found that populations of P. meconis fluctuated dramatically from 2020 to 2022. This area experienced extreme drought conditions during these years, which consequentially affected …

Hacker, Their Actions, And Fear Appeal: A First Look Through The Lens Of Children, Rizu Paudel, Mahdi Nasrullah Al-Ameen

Computer Science Student Research

With the increasing use of computers and smartphones by children, their online safety has become a major concern due to the lack of security awareness. Prior studies pointed to children's poor password habit and vague perceptions on the significance of passwords. While users must be sufficiently motivated to perform a target behavior, a little study to date, focused on understanding how we can encourage children towards strong password creation. As we begin to address this gap, we examined children's perceptions of adversary's actions that instill fear in the context of password compromise. Our semi-structured interviews with 20 children (aged between …

The Effects Of Intersectional Identity Affirmation On The Relationship Between Racist Or Heterosexist Microaggressions And Mental Health For Lgbtq+ People Of Color, Kevin J. Chi, Joshua G. Parmenter, Renee V. Galliher

Psychology Student Research

Lesbian, gay, bisexual, transgender, and queer (LGBTQ+) people of colour (POC) live at the intersection of multiple marginalised statuses. While previous literature has linked positive, affirmed identity with better mental health for LGBTQ+ individuals, identity affirmation may be compromised by intersecting systems of oppression. This study 1) investigated how multiple intersecting forms of oppression (i.e. racism within LGBTQ+ communities and heterosexism within ethnoracial communities) relate to anxiety and depression for LGBTQ+ POC, and 2) examined the indirect effects of intersectional microaggressions on mental health through identity cohesion. A subsample of participants who identified as both a member of the LGBTQ+ …

The Utah Statesman, November 11, 2024, Utah State University

The Utah Statesman

Weekly student newspaper of Utah State University in Logan.

The Importance Of Monitoring Beef Cattle Body Condition, David Secrist

All Current Publications

A body condition scoring system commonly used in the U.S. is an objective effort to quantify a cow’s body condition with ratings from 1 (severely emaciated and weak) to 9 (excessively obese), resulting in a body condition score (BCS). Optimal BCS in commercial cow/calf operation is from 5 to 7, depending on the production stage, feed resources, and the animal’s age. Reproductive efficiency is critical to operational success and is closely tied to BCS. This fact sheet discusses why BCS is important and how to apply BCS to a herd effectively.

Relationships Matter: Unpacking Personal And Professional Grief In Archival Labor, Caroline Kinsley, Molly Stothert-Maurer

Journal of Western Archives

Archival donations are often triggered by critical transitions in donors' lives, like the end of a career, the selling of a family home, or the death of a loved one. Because donors approach archives during these transitions, archivists often find themselves in the middle of emotionally charged relationships with donors working through feelings of grief and loss. However, archivists are often unprepared and untrained for this emotionally demanding labor. A literature review reveals that while this is a common experience among archivists, there is very little guidance on how to approach this aspect of donor relations. Other fields that provide …

Physiological, Behavioral, And Self-Report Outcomes Of Acceptance- And Regulation-Based Exposure For Intrusive Thoughts, Brooke M. Smith, Jennifer L. Barney, Clarissa W. Ong, Tyson S. Barrett, Michael E. Levin, Michael P. Twohig

Psychology Faculty Publications

Leading theories regarding the mechanisms of exposure for OCD focus on Pavlovian fear reduction more than operant processes. Acceptance-based exposure directly targets operant behavior. Integrating these perspectives could lead to a more robust understanding of mechanisms of change in exposure and more effective and enduring treatments. The current study investigated acceptance and regulation of distress during exposure. Participants with intrusive thoughts were randomized into three groups, Acceptance (n = 23), Regulation (n = 20), and Control (n = 21), and completed two behavioral avoidance tests (BATs) 1 week apart. Active conditions completed a 30-minute exposure plus 6 days of 10-minute …

A Probabilistic Kp And Hp Driven Auroral Boundary Model Using 28 Years Of Dmsp Data, Riley N. Troyer, Russell Landry, Michael David, Vincent Eccles, Adrian E. Acosta

Space Dynamics Laboratory Publications

This paper uses energy flux data from the DMSP F6 thru F19 satellites to construct a new equatorward auroral boundary model. This method of processing the data allows one to easily extend boundary detections to different instrument generations because it is based on a standard deviation value instead of hard thresholds. Using this method, the paper provides statistics from just under 1 million auroral boundaries between 1986 and 2014. These statistics are based on normal distribution fits for each Kp/Hp and MLT bin, which allows one to specify the boundary for an arbitrary distribution percentile. The paper compares …

Faculty Senate Minutes November 4, 2024, Utah State University

Faculty Senate & Faculty Senate Executive Committee

• Call to Order
• Approval of Minutes
• University Business
• Faculty Senate Business
• Information
• EPC Report
• Report
• Academic Freedom and Tenure Annual Report
• Athletic Council Annual Report
• Library Advisory Council Annual Report
• Old Business
• New Business
• Adjourn: 3:55 pm

The Utah Statesman, November 4, 2024, Utah State University

The Utah Statesman

Weekly student newspaper of Utah State University in Logan.

Faculty Senate Agenda November 4, 2024, Utah State University

Faculty Senate & Faculty Senate Executive Committee

• 3:00 Call to Order
• Approval of Minutes
• 3:05 University Business
• 3:20 Faculty Senate Business
• 3:35 Information
• EPC Report
• 3:40 Report
• Academic Freedom and Tenure Annual Report
• Athletic Council Annual Report
• Library Advisory Council Annual Report
• 4:00 Old Business
• 4:05 New Business
• Adjourn: 4:30 pm

Imitasd: Imitation Assessment Model For Children With Autism Based On Human Pose Estimation, Hany Said, Khaled Mahar, Shaymaa E. Sorour, Ahmed Elsheshai, Ramy Shaaban, Mohamed Hesham, Mustafa Khadr, Youssef A. Mehanna, Ammar Basha, Fahima A. Maghraby

Instructional Technology and Learning Sciences Faculty Publications

Autism is a challenging brain disorder affecting children at global and national scales. Applied behavior analysis is commonly conducted as an efficient medical therapy for children. This paper focused on one paradigm of applied behavior analysis, imitation, where children mimic certain lessons to enhance children’s social behavior and play skills. This paper introduces IMITASD, a practical monitoring assessment model designed to evaluate autistic children’s behaviors efficiently. The proposed model provides an efficient solution for clinics and homes equipped with mid-specification computers attached to webcams. IMITASD automates the scoring of autistic children’s videos while they imitate a series of lessons. The …

Prediction Of Turfgrass Quality Using Multispectral Uav Imagery And Ordinal Forests: Validation Using A Fuzzy Approach, Alexander Hernandez, Shaun Bushman, Paul Johnson, Matthew D. Robbins, Kaden Patten

Plants, Soils, and Climate Faculty Publications

Protocols to evaluate turfgrass quality rely on visual ratings that, depending on the rater’s expertise, can be subjective and susceptible to positive and negative drifts. We developed seasonal (spring, summer and fall) as well as inter-seasonal machine learning predictive models of turfgrass quality using multispectral and thermal imagery collected using unmanned aerial vehicles for two years as a proof-of-concept. We chose ordinal regression to develop the models instead of conventional classification to account for the ranked nature of the turfgrass quality assessments. We implemented a fuzzy correction of the resulting confusion matrices to ameliorate the probable drift of the field-based …

Tremblings November 2024, Western Aspen Alliance

Tremblings

Aspen Stewardship With PBR

Paul C. Rogers, Director, Western Aspen Alliance, Adjunct Professor (Environment & Society), Associate (Ecology Center), Utah State University

How do we effectively piece together aspen science for better management? This question has been the nexus of the Western Aspen Alliance's (WAA) mission since our 2008 inception. If you participated in one of more than 40 WAA field-based workshops you can attest that evolving research findings from numerous interlacing disciplines makes for a challenging science-management landscape. However, this clear departure from historical and linear 'command and control' approaches, though demanding, incorporates vital multi-dimensionality (e.g., social, cultural, institutional …

When Connecting With Lgbtq+ Communities Helps And Why It Does: A Meta-Analysis Of The Relationship Between Connectedness And Health-Related Outcomes, G. Tyler Lefevor, Sydney A. Sorrell, Samuel J. Skidmore, Kiet D. Huynh, Rachel M, Golightly, Elanor Standifird, Kyrstin Searle, Madelyn Call

Psychology Faculty Publications

We conducted a multilevel meta-analysis of 390 effect sizes from 167 studies with 157,923 participants examining the relationship between connectedness with lesbian, gay, bisexual, transgender, and queer/questioning (LGBTQ+) communities and health-related outcomes, following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. We conducted our initial search in January 2023 in APA PsycInfo, ERIC, Medline, and Open Dissertations, selecting studies that (a) measured LGBTQ+ community connectedness, (b) measured health, and (c) provided an estimate of the relationship between LGBTQ+ community connectedness and health. We found that connectedness with LGBTQ+ communities promotes mental health (r = .11), well-being (r …

Socio-Demographic Disparities In Diet Quality Among Utah Residents, Palak Gupta, Lendel K. Narine

Transforming Communities

Diet quality significantly influences health outcomes, with socio-demographic factors playing a crucial role in shaping dietary behaviors. This study aims to investigate the dietary behaviors and socio-demographic characteristics of Utah residents, highlighting disparities in diet quality and the underlying factors contributing to these differences. Using a sample of 1,522 adults, data on socio-demographic characteristics, diet quality, and food expenditure were collected via an online survey in April and May 2023. The modified Rapid Eating Assessment for Participants-Shortened Version (REAP-S) was used to assess diet quality. Results indicate that respondents spent about 30% of their monthly income on food, reflecting a …

Development And Testing Of A Fast-Acting, 8-Bit, Digital Throttle For Hybrid Rocket Motors, Stephen A. Whitmore

Mechanical and Aerospace Engineering Faculty Publications

The potential for throttle control of hybrid rocket systems has long been known as a potential advantage for a variety of applications. Because only a single flow path is controlled, theoretically, hybrids should be significantly easier to throttle than bipropellant systems. Unfortunately, the slow response times and nonlinearity of traditional position-control valves have limited practical applications of hybrid throttling. This paper presents an alternative throttling system where the oxidizer flow path is broken into multiple streams, with each flow path controlled by a solenoid-operated on/off valve. The parallel paths allow significantly faster and more precise control than can be achieved …

Zoographics In The Journal Of The Experimental Analysis Of Behavior: Increasing Inclusion Of Female Animals, Amy L. Odum, Kiernan T. Callister, Mariah E. Willis-Moore, Daniel S. Da Silva, David N. Legaspi, Lucy N. Scribner, Josephine N. Hannah

Psychology Faculty Publications

We examined the zoographics, or the characteristics of nonhuman animal subjects, reported for the entirety of the Journal of the Experimental Analysis of Behavior (JEAB) through the most recent complete year (1958–2023). Animal sex in particular was evaluated to determine whether the lack of inclusion of female subjects in other disciplines extends to JEAB. Through systematic coding of all nonhuman empirical articles, we found consistent underreporting of most zoographics and a disproportionate use of male subjects relative to female subjects. Additionally, animal sex was commonly unreported and the inclusion of both male and female subjects was sparse. …