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The Utah Statesman, July 5, 2022, Utah State University

The Utah Statesman

Weekly student newspaper of Utah State University in Logan.

A Tale Of Two Levels: Analyzing The Discoverability And Impact Of Item-Level Description In Ead Finding Aids, Paul Daybell, Andrea Payant, Liz Woolcott, Becky Skeen, Anna-Maria Arnljots, Kurt Alan Meyer

Library Faculty & Staff Publications

As part of a multi-faceted research project examining user engagement with various types of descriptive metadata, Utah State University Libraries Cataloging and Metadata Services unit (CMS) investigated the discoverability of local Encoded Archival Description (EAD) finding aids. The research team put two versions of the same finding aid online with one described at the file (box or folder) level and the other at the item level. Over a year later, the team pulled the analytics for each guide and assessed which descriptive level was most frequently accessed. The research team also looked at the type of search terms patrons utilized …

Nash Bargaining In A General Equilibrium Framework: The Case Of A Shared Surface Water Supply, Arpita Nehra, Arthur J. Caplan

Applied Economics Faculty Publications

We extend the axiomatic Nash bargaining approach to the context of interregional water sharing in order to assess the approach’s normative implications in a general equilibrium (GE) framework. The GE model is applied to a water development project proposed for the Wasatch Front and Cache Valley regions of Utah — the Bear River Development Project (BRDP). We demonstrate conceptually how an allocation rule and attendant net regional welfare measures are endogenously determined as equilibrium solutions to the bargaining problem. Numerical analysis, based upon a simulation model calibrated to current data, reveals that Nash bargaining is generally infeasible as a solution …

Helping Utah Landowners Reduce Pesticide Use Through A Statewide Ipm Program, Nick Volesky, Mair Murray

Outcomes and Impact Quarterly

The Utah Integrated Pest Management (IPM) program provides outreach and education to Utahns to reduce pesticide use and ultimately protect human and environmental health. In 2022, the IPM program responded to stakeholders’ needs by partnering with county Extension offices to deliver eight (8) in-person workshops across the state. The workshops connected Extension specialists and county faculty with managers of home landscapes and farms. The objective of the workshops was to provide participants with IPM skills to identify, monitor, and manage pest problems in preparation for the upcoming growing season.

Preparing Rural Youth For The Future Of Work Through Remote Work Education, Andrea T. Schmutz, Alison Campbell, Abbey Bean, Amanda D. Ali, Paul Hill, Emy Swadley

Outcomes and Impact Quarterly

With population migration out of Utah's rural communities threatening the future workforce in small towns, Utah State University Extension recognized an opportunity to provide remote work education to rural youth to empower them to remain in their communities and seek remote employment. Teaming up with Utah's Rural Online Initiative program, Utah State University Extension created the virtual 4-H Remote Skills Camp: For College and Career Readiness.

Developing And Piloting A Design Guide For Outdoor Classrooms In Utah, Derek Jenson, Jake Powell, David T. Anderson, Rose Judd-Murray

Outcomes and Impact Quarterly

The outdoor classroom design guide can help applicants successfully apply for the Utah Outdoor Classroom Grant introduced by the Office of Outdoor Recreation (OOR) in 2021. The design guide includes case studies, design resources, and critical information for community involvement from statewide locations and will serve as a free public resource.

Uncertainties Of The Pulsed Electroacoustic Method: Peak Positions Of Embedded Charge Distributions, Zachary Gibson, J. R. Dennison

Physics Student Research

The pulsed electroacoustic (PEA) method allows for nondestructive measurements of internal charge distributions in dielectric materials. These measurements have been paramount in understanding and mitigating charge accumulation, aging, and electrostatic discharge in materials for various applications. This study aims to examine more closely the uncertainties of pulsed electroacoustic measurements. The first few moments of a charge distribution are directly related to the magnitude, peak position, full-width-at-half-maximum, and skewness. The uncertainty in the magnitude of the charge distribution is often quite large, but the peak position can be determined with a precision of <1 μm. This has been demonstrated in our lab with repeated PEA measurements of polyether-etherketone (PEEK) with internal charge present. This precision is further validated with measurements of PEEK irradiated with differing doses of 50 keV incident electrons, resulting in peak positions that differ by only a few μm. A final test is given by measurements monitoring the slow migration of the charge distributions in these irradiated samples over several months. The measured shifts in the peak position of the charge distributions are ≤1 μm. Though the spatial resolutions of PEA measurements are typically ~10 μm, as defined by the full- width-at-half-maximum of the leading interfacial peak, the precision of the peak position can be more than an order of magnitude greater. The statistical analysis of the repeated measurements to determine uncertainties, as well as the validation measurements, demonstrate the high precision determination of the peak position of embedded charge distributions.

Longitudinal Impacts Of Pandemic-Induced Disruptions On Adolescent Siblings' And Parents' Alcohol Use: A Family Life Course Perspective, Shawn D. Whiteman

Funded Research Records

No abstract provided.

Forecasting And Adapting To Drought: Integrating Federal, State, And Local Perspectives On Drought At The Spring Runoff Conference, Erin N. Rivers, Hope Braithwaite

Outcomes and Impact Quarterly

In response to an urgent need to connect stakeholders and the public to information about the impacts of the drought in Utah, USU Extension organized the 2022 Spring Runoff Conference. The conference was attended by 135 state and federal agency professionals, local water managers, and USU faculty and students. A majority of participants reported knowledge gain and intentions to adopt water conservation practices.

Fatherhood Education During The Pandemic, Joshua J. Turner, Brian J. Higginbotham, Kay Bradford

Outcomes and Impact Quarterly

This article highlights the transition of Healthy Relationships Utah from in-person to virtual fatherhood education workshops during the COVID-19 pandemic. Overall, evaluation results showed no differences in program outcomes between in-person and virtual formats. Qualitative data from virtual participants illustrates the benefits and challenges of virtual program delivery.

Performance Evaluation Of Deep Transfer Learning On Multi-Class Identification Of Common Weed Species In Cotton Production Systems, Dong Chen, Yuzhen Lu, Zhaojian Li, Sierra N. Young

Civil and Environmental Engineering Faculty Publications

Precision weed management offers a promising solution for sustainable cropping systems through the use of chemical-reduced/non-chemical robotic weeding techniques, which apply suitable control tactics to individual weeds or small clusters. Therefore, accurate identification of weed species plays a crucial role in such systems to enable precise, individualized weed treatment. Despite recent progress, the development of a robust weed identification and localization system in the presence of unstructured field environments remains a serious challenge, requiring supervised modeling using large volumes of annotated data. This paper makes a first comprehensive evaluation of deep transfer learning (DTL) for identifying common weed species specific …

Trauma Exposure And Trauma Symptoms As Predictors Of Police Perceptions In Latinx Youths, Amanda Venta, Germán Cadenas, Alfonso Mercado, Luz M. Garcini, Melanie M. Domenech Rodríguez

Psychology Faculty Publications

Objective: The Latinx immigrant youth population composes nearly a quarter of all children in the U.S. and are a high-risk group for police encounters. Based on perceptions of Latinxs as criminals, increased enforcement actions against Latinxs in the U.S., and failures of policing and police brutality in immigrants’ home countries, we expected that immigrants who reported increased trauma exposure and symptoms would have more negative perceptions of police. Method: This study utilized data from 107 recently immigrated Latinx youth to examine how trauma exposure (Child Trauma Screen) and symptoms (Child PTSD Symptoms Scale) related to perceptions of police (Criminal Sentiments …

Growing Space Management In Boreal Mixedwood Forests: 22 Year Results, Richard Kabzems, George Harper, Che Elkin

Aspen Bibliography

Boreal mixed forests of trembling aspen (Populus tremuloides) and white spruce (Picea glauca) can provide higher outputs of many ecosystem goods and services, combined with resilience for changing environmental conditions. In this study, we examine the growth of white spruce and aspen over a range of stand compositions created by spot and broadcast treatments of broadleaves using manual and chemical means, aspen spacing, and untreated control. Twenty-two growing seasons postharvest, treatment responses created a range of broadleaf densities and spatial arrangements, reflected in significant differences in heights and diameters of the spruce mixedwood component. At this …

Bioelectrical Impedance Changes Of The Trunk Are Opposite The Limbs Following Acute Hydration Change, Dale R. Wagner

Kinesiology and Health Science Faculty Publications

This study aimed to evaluate the changes in impedance and estimates of body composition variables obtained from segmental multi-frequency bioelectrical impedance analysis (SMFBIA) following acute hydration change. All participants (N = 11 active adults) had SMFBIA measurements at baseline (euhydration), post-dehydration, and post-hyperhydration in an experimental repeated-measures design. Dehydration and hyperhydration trials were randomized with the opposite treatment given 24 h later. Dehydration was achieved via a heat chamber of 40 °C and 60% relative humidity. Hyperhydration was achieved by drinking lightly-salted water (30 mmol·L^-1 NaCl; 1.76 g NaCl·L^-1) within 30 min. Post-measurements were taken 30 min …

Schlieren Techniques For Observations Of Long Positive Sparks: Review And Application, Junjia He, Xiankang Wang, Xiangen Zhao, Juhyeong Lee, Yaping Du, Xiaopeng Liu, Quan Gan, Yang Liu, Yuqin Liao

Mechanical and Aerospace Engineering Faculty Publications

Understanding the mechanism of positive leader discharge is important in lightning protection engineering and the external insulation design in high voltage power transmission systems. During the propagation of a positive leader, some processes without light-emitting, for example, the insulation recovery process after the breakdown, cannot be observed by optical photography techniques. With the combination of the digital high-speed imaging system, the conventional Schlieren techniques offer new vistas in the long air gap discharge observation. The important features of high spatial resolution, high sensitivity, and easy arrangement make Schlieren techniques powerful and effective tools for characterising the discharge processes without light-emitting. …

High Tunnel Construction Cost Calculation Workbook, Shannon Rauter, Melanie Stock, Brent Black, Dan Drost

All Current Publications

The cost of building a high tunnel fluctuates over time with supply prices. This Excel workbook accompanies the USU Extension fact sheet, "Constructing a Low-cost High Tunnel" by Black, Drost, Rowley, and Heflebower (2011) and allows users to input local supply costs. The workbook then calculates the cost to build a USU low-cost high tunnel with several design options according to high tunnel length and door structure. It also provides an example calculation based on April 2022 pricing for reference.

Infusing Indigenous Knowledge Systems (Iks) Into Teaching Integrated Stem Disciplines: An Empirical Project, Iman C. Chahine

Journal of Indigenous Research

More recently, archaeological evidence collected from different cultures has unearthed numerous indigenous technologies that inherently embody specific scientific and mathematical structures, such as number systems, folk games and puzzles, kinship relations, divination systems, and symmetric strip architecture (Chahine, 2011). Building on the ingenuity of numerous indigenous cultures, such as Southeast Asian and African cultures, research has provided some opportunities to various uses of materials, which represent invaluable clues to cultural connections and continuities through space and time. While ample evidence in the literature supports the assertion that culturally relevant pedagogy can provide meaningful context for learning, there is shortage in …

Space Bioprocess Engineering On The Horizon, Aaron J. Berliner, Isaac Lipsky, Davian Ho, Jacob M. Hilzinger, Gretchen Vengerova, Georgios Makrygiorgos, Matthew J. Mcnulty, Kevin Yates, Nils J. H. Averesch, Charles S. Cockell, Tyler Wallentine, Lance C. Seefeldt, Craig S. Criddle, Somen Nandi, Karen A. Mcdonald, Amor A. Menezes, Ali Mesbah, Adam P. Arkin

Chemistry and Biochemistry Faculty Publications

Space bioprocess engineering (SBE) is an emerging multi-disciplinary field to design, realize, and manage biologically-driven technologies specifically with the goal of supporting life on long term space missions. SBE considers synthetic biology and bioprocess engineering under the extreme constraints of the conditions of space. A coherent strategy for the long term development of this field is lacking. In this Perspective, we describe the need for an expanded mandate to explore biotechnological needs of the future missions. We then identify several key parameters—metrics, deployment, and training—which together form a pathway towards the successful development and implementation of SBE technologies of the …

Market Animal Feed Efficiency: A Tool For Evaluating Feed Conversion, Cody Zesiger, Jessie Hadfield, Jacob Hadfield, Joshua Dallin

All Current Publications

The market animal feed efficiency calculator is designed to help youth livestock producers become more profitable and improve market animal feed efficiency.

A Colorimetric Method To Measure In Vitro Nitrogenase Functionality For Engineering Nitrogen Fixation, Lucía Payá-Tormo, Diana Coroian, Silvia Martín-Muñoz, Artavazd Badalyan, Robert T. Green, Marcel Veldhuizen, Xi Jiang, Gema López-Torrejón, Janneke Balk, Lance C. Seefeldt, Stefan Burén, Luis M. Rubio

Chemistry and Biochemistry Faculty Publications

Biological nitrogen fixation (BNF) is the reduction of N2 into NH3 in a group of prokaryotes by an extremely O2-sensitive protein complex called nitrogenase. Transfer of the BNF pathway directly into plants, rather than by association with microorganisms, could generate crops that are less dependent on synthetic nitrogen fertilizers and increase agricultural productivity and sustainability. In the laboratory, nitrogenase activity is commonly determined by measuring ethylene produced from the nitrogenase-dependent reduction of acetylene (ARA) using a gas chromatograph. The ARA is not well suited for analysis of large sample sets nor easily adapted to automated robotic determination of nitrogenase activities. …

Water Availability Dictates How Plant Traits Predict Demographic Rates, Alice E. Stears, Peter B. Adler, Dana M. Blumenthal, Julie A. Kray, Kevin E. Mueller, Troy W. Ocheltree, Kevin R. Wilcox, Daniel C. Laughlin

Wildland Resources Faculty Publications

A major goal in ecology is to make generalizable predictions of organism responses to environmental variation based on their traits. However, straightforward relationships between traits and fitness are rare and likely to vary with environmental context. Characterizing how traits mediate demographic responses to the environment may enhance the predictions of organism responses to global change. We synthesized 15 years of demographic data and species-level traits in a shortgrass steppe to determine whether the effects of leaf and root traits on growth and survival depended on seasonal water availability. We predicted that (1) species with drought-tolerant traits, such as lower leaf …

Recovery Of Trembling Aspen, Tamarack, And White Spruce Seedlings From Nacl Stress Following Winter Dormancy: Implications For Increased Foliar Potassium, Necrosis, And Sodium Management As Stress Resistance Mechanisms, Nathan T. Lauer

Aspen Bibliography

Revegetation of boreal forest lands disturbed by surface mining for bitumen can be challenging due to fluctuating levels of soil NaCl and harsh winter temperatures. These stressors may hinder the growth and survival of planted tree seedlings. Two experiments were carried out to examine the processes of recovery from NaCl stress and overwintering in trembling aspen, tamarack, and white spruce seedlings. In the recovery experiment, seedlings were treated with 0, 50, or 100 mM NaCl for 60 days and then allowed to recover for 60 days. Most of the examined physiological variables (total dry weight, chlorophyll concentration, photosynthesis, and transpiration) …

Sexual Complexity: A Comparison Between Men And Women In A Sexual Minority Sample Of Members Of The Church Of Jesus Christ Of Latter-Day Saints, William S. Bradshaw, John P. Dehlin, Renee V. Galliher

Psychology Faculty Publications

We report here some of the results from an online survey of 1612 LGBTQ members and former members of the Church of Jesus Christ of Latter-day Saints (CJCLDS, Mormon). The data permitted an exploration of diversity—individual similarities and differences within and between the sexes. Men and women were compared with respect to sexual identity self-labeling and behavior (i.e., identity development, disclosure, activity), orientation change efforts, marital relationships, and psychosocial health—these variables in the context of their religious lives. More women than men self-identified in the bisexual range of the sexual attraction continuum. Both men and women had engaged in extensive …

What Is A Photon? Foundations Of Quantum Field Theory, Charles G. Torre

All Physics Faculty Publications

This is a brief, informal, and relatively low-level course on the foundations of quantum field theory. The prerequisites are undergraduate courses in quantum mechanics and electromagnetism.

The Status Of Utah Hispanic Or Latina Women, Jessica C. Hill, Marin Christensen, Susan R. Madsen

Marketing and Strategy Faculty Publications

In 2021, the Kem C. Gardner Policy Institute published a databook on race, ethnicity, and sex, and since that time related dialogues have become more common. According to these data, Utah is becoming increasingly diverse, which has brought wide disparities between most minority groups and the White population in terms of education, housing, and health outcomes.¹ To continue this important conversation, the Utah Women & Leadership Project (UWLP) is expanding and deepening this research by publishing a series of research snapshots on Utah women of color. Often, research entities publish data on gender and race separately, leaving a gap …

Intermediate Help With Using Digital Devices And Online Accounts: Understanding The Needs, Expectations, And Vulnerabilities Of Young Adults, Hanieh Atashpanjeh, Arezou Behfar, Cassity Haverkamp, Maryellen Mcclain Verdoes, Mahdi Nasrullah Al-Ameen

Computer Science Student Research

With the revolution in digital technologies, users face challenges to learn, understand, and use modern devices and online services. Thus, they seek intermediate help, i.e., assistance from others to avail the benefits of technological advancement. The prior studies showed that people with special needs, including the users with visual impairments, and older adults ask for help from their caregivers as they encounter problems with technology use. However, there is a gap in existing literature to systematically investigate the expectations, and challenges of users in availing help from others with using digital devices (e.g., computers, mobile phones) and online accounts. We …

Evidence For Multiple Potential Drivers Of Increased Phosphorus In High-Elevation Lakes, J. Scholz, Janice Brahney

Watershed Sciences Faculty Publications

Total phosphorus (TP) concentrations have increased in many remote mountain waterbodies across the western United States, and reports of algal blooms in these systems have increased in frequency. Explanations for observed TP increases are uncertain, and typical landscape drivers, such as agricultural/urban runoff, are implausible. We investigated multiple atmospheric and terrestrial-P loading mechanisms to explain the observed decadal increase in TP, including a novel hypothesis that warming soils may lead to elevated P fluxes to receiving water bodies. Using northern Utah mountains ranges as a case study, we measured prospective inputs of total and bioavailable P via dust deposition. Terrestrial …

Autonomy And Privilege In Doctoral Education: An Analysis Of Stem Students' Academic And Professional Trajectories, Jennifer M. Blaney, Annie M. Wofford, Soojeong Jeong, Jina Kang, David F. Feldon

Instructional Technology and Learning Sciences Faculty Publications

Guided by theories of socialization and possible selves, this study examines how STEM doctoral students perceive their academic and professional trajectories. More specifically, we rely on four years of interview data from 66 doctoral students in the biological sciences to explore students' perceived trajectories, focusing on the salient identities and experiences that shape the way students identify and describe their graduate experiences over time. Findings reveal wide variation in terms of how students described their trajectories, with some students describing linear trajectories and/or unchanging career interests, while others described their developmental trajectories as highly turbulent and non-linear. These perceived trajectories …

Short-Term Effects Of Experimental Goose Grazing And Warming Differ In Three Low-Arctic Coastal Wetland Plant Communities, Ryan T. Choi, Matteo Petit Bon, A. Joshua Leffler, Katharine C. Kelsey, Jeffrey M. Welker, Karen H. Beard

Wildland Resources Faculty Publications

Question: Understanding the sensitivity and magnitude of plant community responses in tundra wetlands to herbivory and warming is pressing as these ecosystems are increasingly threatened by changes in grazing pressure and higher temperatures. Here, we ask to what extent different low-Arctic coastal wetland plant communities are affected by short-term goose grazing and warming, and whether these communities differ in their responses.

Location: Yukon–Kuskokwim Delta, Alaska.

Methods: We conducted an experiment where we simulated goose grazing by clipping the vegetation and summer warming by using open-top chambers in three plant communities along a 6-km coastal–inland gradient. We assessed plant community compositional …

Compensatory Phenolic Induction Dynamics In Aspen After Aphid Infestation, Rajarshi Kumar Gaur, Ilka Nacif De Abreu, Benedicte Riber Albrectsen

Aspen Bibliography

Condensed tannins (CTs) are polyphenolics and part of the total phenolic (TP) pool that shape resistance in aspen (Populus tremula). CTs are negatively associated with pathogens, but their resistance properties against herbivores are less understood. CTs shape resistance to pathogens and chewing herbivores and could also shape resistance to aphids. Being chemical pools that are highly variable it can further be questioned whether CT-shaped resistance is better described by constitutive levels, by the induced response potential, or by both. Here, aspen genotypes were propagated and selected to represent a range of inherent abilities to produce and store foliar …