Digital Commons Network^™

Dahlia Cut Flower Production In Utah, Melanie Stock, Amanda Pratt, Claudia Nischwitz, Eli Oliver, Katie Wagner, Nick Volesky

All Current Publications

Dahlias are tuberous, herbaceous plants that are frost sensitive and therefore grown as a warm-season annual for cut flower production in Utah. Dahlias bloom in summer to fall, with peak production in late summer to early fall, and the season ending with first frost. Plants benefit from pinching to encourage branching and horizontal trellising or staking to promote straight stems and avoid toppling. High tunnels or extended low tunnels with shade, as well as optimum nitrogen and irrigation rates, improve production. As showstoppers in arrangements, dahlia cut flowers are highly desired on local markets and profitable to produce, particularly those …

Energy Dissipation Of Highly Convergent Chutes In Stilling Basins Of Concrete Dams, Rafael Morán, Miguel Ángel Toledo, Jaime I. Masides

Protections Conference

This article presents the results of a combination of experimental and numerical research on the performance of stilling basins of spillways with highly convergent chutes (HCC). The comparison between the energy dissipation of the stilling basins with flat slab and baffle blocks shows that the latest are more efficient. Because of that, the cost savings of using such blocks can be significant. The results obtained could be applied in different cases such as increasing the capacity of existing spillways and protecting dams against overtopping. The application of HCC spillways in new dams could lead to a reduction in the cost …

A Novel Computational Method To Compute Rock Scour Due To Dam Overtopping, Erik F. R. Bollaert

Protections Conference

Flood events generating potential risk for dam overtopping may become more frequently in the future, especially because of increasing climate change. Crest overflows at arch dams generally impact the downstream rock mass very close to the dam foundation. As such, any scour of the rock mass generated by this phenomenon may potentially endanger the stability of the dam and its appurtenant structures. Hence, pertinent assessment of this scour formation through space and time is becoming increasingly relevant to dam safety. This paper presents a novel computational method for detachment of prismatic rock blocks from their mass when impacted by high-velocity …

Bedrock Erosion In Swedish Spillways - A Methodology For Assessing Design Pore Pressures Aimed For Design Of Erosion Mitigation Via Reinforcement Of The Rock Mass, Per Eriksson, Jonas Persson, Carol-Oscar Nilsson

Protections Conference

This article presents a collection of literature and data that enables calculations of hydraulic pressures inside a structurally simplified rock mass. The causation between the pressure in the rock mass and the near plane-parallel turbulently flowing waters on natural surfaces of igneous rock is expressed. The article is mainly aimed at rock reinforcement calculations given magmatic rock types with high durability and large block size.

Erodibility Evaluation Of An Unlined Rock Spillway: Comparison Between The Erodibility Index Method And A New Method Based On Block Theory, Michael George, Cole Christiansen, Ariel Rickel, Benjamin Israel, George W. Annandale

Protections Conference

Following the 2017 events at the Oroville Dam spillways that prompted evacuation of nearly 200,000 downstream residents and resulted in over $1B USD repair costs, there is highlighted focus on evaluation of spillways (both lined and unlined) at dams across the USA. In the case of unlined channels, flow conditions are often complex which presents several challenges for erodibility evaluation given methods are often based on idealized circumstances. High-resolution data available for the site (both in terms of 3D point cloud geometry data for the rock mass and 3D CFD model simulations of flow conditions) permitted a more detailed analysis …

Hydro-Geotechnical Rock Scour Assessment At Petit-Saut Dam, Seven E. Pells, Fanar Al-Qassab, Felicia Weir, Anaïs Faivre, Thierry Leturcq, Benoit Blancher

Protections Conference

This paper presents a recommended design procedure for assessment of rock scour which is illustrated for the case study of Petit-Saut Dam in French Guiana. The methodology, referred to as a “hydro-geotechnical scour assessment”, promotes a multi-discipline approach, applying expertise in both rock mechanics and hydraulics, and guides the diagnosis of scour and response to risk by application of currently available scour assessment techniques.

Failure Thresholds For Rcc Crest Caps, Tony L. Wahl, Bryan J. Heiner, Jacob F. Kepler

Protections Conference

Overtopping protection using roller-compacted concrete (RCC) overlays is a common improvement made to address hydrologic deficiencies at existing small- to medium-height embankment dams. Overlays allow floods to pass over the dam while preventing erosion of the original embankment. The United States has many examples of such projects on both private and public dams, including many associated with federal agencies of the Departments of the Interior and Agriculture. For one project modified with an overlay in 1993, deterioration of the RCC and poor bonding between lifts has caused concern for stability of the 0.3-m (1-ft) thick RCC lifts that cap the …

First Application Of Articulated Concrete Block Armoring With A Stabilized Stone Drainage Layer, Jeremy R. Young, Jim Nadeau

Protections Conference

Results from recent hydraulic testing of Articulated Concrete Block (ACB) systems have shown variations in the level of the ACB surface is attributed to the movement of an unconfined stone drainage layer. This movement appears to be exacerbated by thicker drainage layers, higher overtopping depths, and longer test flumes. While the apparent movement did not constitute “threshold of performance” as currently defined by ASTM D7276 and D7277, there was a desire to mitigate movement of the stone drainage layer and maintain conservatism in ACB design and construction. This paper will review the findings of Nadeau and Wedin’s paper from Protections …

Applying The Submerged Jet Erosion Test To Embankment Dam Breach Modeling, Tony L. Wahl, Blake Armstrong

Protections Conference

The submerged jet erosion test (JET) is one of several methods available for quantifying erodibility of cohesive soils, a crucial input for modeling erosion and breach of embankment dams with models such as WinDAM, EMBREA (Morris 2011), and DL BREACH (Wu 2013; 2016a; 2016b). The JET was initially developed in the late 1980s as a relatively large-scale device with a 13-mm diameter nozzle creating an impinging jet that erodes a soil sample submerged in a 61-cm diameter tank. This first device was documented in an ASTM standard (D5852-1995), but the standard was withdrawn in 2016. In the last 15 to …

Structural Failure Of The Cohesive Core Of Rockfill Dams: An Experimental Research Using Sand-Bentonite Mixtures, Ricardo Monteiro-Alves, Rafael Moran, Miguel Á. Toledo, Javier Peraita

Protections Conference

This article presents experimental research focusing on the structural failure of the central core of a rockfill dam using sand-bentonite mixtures. It comprised an extensive geotechnical characterization of soil materials and mixtures, including compaction and strength tests, as well as the construction of 1 m high and 1.5 m wide physical models. The displacements of the cohesive cores were recorded using a tailored measuring system, based on a laser pointer and a mirror, designed to amplify the real displacements. The cohesive cores were extremely sensitive to small oscillations and behaved as rigid bodies, similar to concrete slabs with three fixed …

Overtopping Erodibility Analysis For A Steep-Sloped Rockfill Embankment Dam, Ariel Rickel, Michael F. George, Rob Millar

Protections Conference

Erosion of embankment material during an overtopping event is one of the major mechanisms of failure for earthfill dams. The ability to analyze the progression of overtopping failure can prove useful in assessing the breakthrough risk of the dam, which involves understanding the behavior of the material that the dam is comprised of. While there have been studies on the behavior of smaller-grained materials such as clays and sands (e.g. Hahn et al 2000; Coleman et al. 2002; Hanson et al. 2005; Hanson et al. 2011), few have focused on erosion of larger-grained rockfill embankments.

This paper presents the erosion …

What Tooele County Leaders And Residents Can Do To Strengthen The Impact Of Girls And Women In Their Area, Angie Kleven, Susan R. Madsen

Marketing and Strategy Faculty Publications

This idea sheet is based on a 2022 gathering of 30 leaders in Tooele County. Girls and women face challenges unique to the area in which they live, and the goal of this gathering was to identify those barriers and determine strategies and initiatives that local leaders and residents can implement to address them. This document includes recommendations in the following areas: education, home and family, health & wellbeing, business & economics, and culture & community engagement.

Changes In Obstacles To Learning During The Covid-19 Pandemic For University Students And Recommended Solutions, Becky Williams, Sunshine L. Brosi

Journal on Empowering Teaching Excellence

Access the online Pressbooks version of this article here.

The COVID-19 pandemic caused disruptions to student learning from K–12 to universities and continues to manifest negative effects on students. To better understand the challenges our students face and how those obstacles have changed since the COVID-19 pandemic began, we surveyed our undergraduate ecology students who ranked obstacles to learning they experience in technology, learning environment, and economic security. The majority of respondents report conditions have worsened since the onset of the pandemic. Surveys identified the largest challenges on average were being unfamiliar with technology, using a smartphone or tablet for …

Examining Math Instructors’ Knowledge, Beliefs, And Attitudes Of Student Learning Strategies In A Faculty Development Workshop, Roxanne Brinkerhoff, Becky Connelly, Sam Gedeborg

Journal on Empowering Teaching Excellence

Access the online Pressbooks version of this article here.

A faculty development workshop, focused on incorporating universal learning strategies into developmental mathematics courses, was created and utilized in a developmental mathematics department at an open-enrollment, mid-western university to ascertain the best methods for dissemination of essential learning strategies to developmental math students. Successful faculty development programs were studied and utilized in the design of the workshop. The attributes of the workshop were discussed. Faculty were surveyed and qualitative data was analyzed to determine the workshop’s efficacy. The research aimed to understand if participation in the workshop changed faculty knowledge, beliefs, …

Student Stories Of Online Learning, Carrie Lewis Miller, Michael Manderfeld

Journal on Empowering Teaching Excellence

Access the online Pressbooks version of this article here.

Instructional designers at a Midwest university piloted a survey based on the Quality Matters general standards asking students about their online course experience prior to the COVID-19 pandemic. Students were asked to indicate whether they experienced a specific course design element and whether they considered that element to be important to their learning experience. Follow-up interviews with some participants were also held. Data from the survey indicated students perceive their online course experience to be good based on course design elements they encountered. Implications for providing additional faculty development programming based …

Documenting Your Teaching: A Guide To Promote Reflective And Responsive Instruction, María Luisa Spicer-Escalante, Sylvia Read

Journal on Empowering Teaching Excellence

Access the online Pressbooks version of this article here.

Why is teaching documentation so important right now in the educational context? In the United States, teaching, along with research and service, is a crucial component of someone’s professional profile in academia. As part of the review process for faculty reappointment or promotion, most institutions require evidence of effective teaching. This article provides key guidelines for how faculty can collect, explain, and showcase their impact and potential as effective instructors in their teaching dossiers or portfolios. Teaching dossiers are based on three main components: materials from oneself, materials from others, and …

Reflection Impacts Preservice Teachers Instruction And Planning, Joanna C. Weaver, Cynthia Bertelsen, Kaylani Othman

Journal on Empowering Teaching Excellence

Access the online Pressbooks version of this article here.

Creating a habit of reflective practice promotes ongoing and sustainable instructional improvement for preservice teachers. Furthermore, reflection enables teachers to strengthen their instruction through critical analysis of student learning and engagement. While reflection may be intuitive for an in-service teacher, preservice teachers need this experience to develop intentional and automatic reflective practice. Adopted from the field of medicine, Subjective, Observation, Assessment, Planning (SOAP) Notes is a reflective strategy that allows educators to critically reflect on the lessons they have taught. SOAP Notes promote critical reflection on planning and student learning and …

Jete Fall 2022 Introduction, Jason Olsen

Journal on Empowering Teaching Excellence

Access the online Pressbooks version of this introduction here.

An introduction to the Fall 2022 issue of the Journal on Empowering Teaching Excellence.

Full Issue: Journal On Empowering Teaching Excellence, Volume 6, Issue 2, Fall 2022

Journal on Empowering Teaching Excellence

The full-length Fall 2022 issue (Volume 6, Issue 2) of the Journal on Empowering Teaching Excellence

Access the online Pressbooks version (with downloadable EPUB format) here.

The Fall 2022 issue presents research and guidance on topics related to reflective practice and learning. The first article examines the impact of the SOAP Notes tool on teaching, learning, and instructor reflection. The second article provides guidance for faculty on how to collect, explain, and showcase their efforts in a teaching portfolio. Article three shares the findings of a student survey to identify students' experience with the design elements found in the Quality …

Portal: Portal Widget For Remote Target Acquisition And Control In Immersive Virtual Environments, Donguyn Han, Donghoon Kim, Isaac Cho

Computer Science Student Research

This paper introduces PORTAL (POrtal widget for Remote Target Acquisition and controL) that allows the user to interact with out-of-reach objects in a virtual environment. We describe the PORTAL interaction technique for placing a portal widget and interacting with target objects through the portal. We conduct two formal user studies to evaluate PORTAL for selection and manipulation functionalities. The results show PORTAL supports participants to interact with remote objects successfully and precisely. Following that, we discuss its potential and limitations, and future works.

The Utah Statesman, November 28, 2022, Utah State University

The Utah Statesman

Weekly student newspaper of Utah State University in Logan.

An Assessment Of 50 State Early Hearing Detection And Intervention Websites: Is Needed Information Being Provided For Parent Decision Making?, Nichole Westin, Donna Sorkin

Journal of Early Hearing Detection and Intervention

Growth of the Internet as an information resource has provided expanded opportunities for families to easily gather information on a range of topics, including health related topics. State Early Hearing Detection and Intervention (EHDI) websites and other electronic data sources are an important opportunity to support families seeking information on options for their children who have been identified as deaf or hard of hearing. A review was undertaken between August and September 2021 of the 51 US EHDI (state and DC) websites and related information (such as links to others’ sites) to determine if information that is specifcally discussed in …

“It’S About Walking Alongside A Family”: Practitioner Perspectives On Caregiver Coaching With Families Of Children Who Are Deaf Or Hard Of Hearing, Dorie Noll, Sheila Moodie, Ian D. Graham, Beth Potter, Elizabeth M. Fitzpatrick

Journal of Early Hearing Detection and Intervention

Practitioners utilize caregiver coaching in early intervention services, but coaching principles and practices are not well understood in the context of listening and spoken language (LSL) services with families of children who are deaf or hard of hearing. The purpose of this study was to examine practitioners’ experiences with coaching, including definitions, training, and practices they utilize in their work with families. Using semi-structured, qualitative interviews and video observation discussions, this study examined the perspectives of 14 practitioners providing LSL services to families at three intervention sites in the US and Canada. Results indicate that practitioners’ underlying beliefs about their …

Application Of Intervention Mapping To Address Lost To Intervention In Early Hearing Detection And Intervention, Torri Ann Woodruff-Gautherin, Kathleen Cienkowski

Journal of Early Hearing Detection and Intervention

Abstract

Purpose: Detail the application of intervention mapping as a protocol for developing a novel way to address lost to intervention within the early hearing detection and intervention systems.

Design: Intervention mapping (IM) is an approach to behavior change that is typically utilized in public health initiatives. This six-step process walks health program developers, researchers, and policy makers through a rigorous research and community-based approach to understanding why a health concern or problem is present in a community. While using IM to address lost to intervention in Early Hearing Detection and Intervention programs, the focus is on why families, after …

A Systematic Review Of The Effects Of Lena-Based Feedback On Parent-Child Language Interactions In Families With Young Children, Beula M. Magimairaj, Naveen K. Nagaraj, Ana Caballero, Karen F. Munoz, Karl R. White

Journal of Early Hearing Detection and Intervention

Enhancing parent language interactions with children beginning in infancy is important because it results in better language abilities, social skills, and academic outcomes in children. A number of researchers have suggested that parent language interactions with children could be enhanced by giving parents feedback about their language interactions using the Language Environment Analysis (LENA) system. The LENA system records communication exchanges between a child and the adult caregiver and provides an automated analysis of adult word count, child vocalization count, and conversational turn count. We did a systematic review of the studies that investigated the use of LENA-based feedback to …

Nurses’ Perceptions Of The Universal Newborn Hearing Screening Program, Aaron Michael Roman, Michelle O'Connor Kensey

Journal of Early Hearing Detection and Intervention

This study explores the knowledge and perceptions of the newborn hearing screening (NBHS) program from the perspective of nurses and nursing support staff. Registered nurses and nursing support staff (n = 84) completed a digitally administered survey that queried their understanding of JCIH guidelines, perceptions around NBHS administration, and parental anxiety. The results demonstrated that while most respondents felt comfortable and confident about NBHS administration, there was a significant difference in their understanding of appropriate screening milestones compared to JCIH recommendations. Participants further demonstrated an interest in additional learning opportunities related to the NBHS.

Impact Of Social Determinants Of Health On Early Hearing Detection And Intervention Screening/Diagnosis Outcomes, Nannette Nicholson, Ellen A. Rhoades, Rachel E. Glade, Laura Smith-Olinde

Journal of Early Hearing Detection and Intervention

Purpose

We reviewed how Social Determinants of Health relate to health inequities and disparities for Early Hearing Detection and Intervention (EHDI) programs. Then, we examine links between specific sociodemographic factors (maternal age, maternal education, ‘race’/ethnicity) and hearing screening and diagnostic audiology follow-up for newborns in the U.S. and its territories.

Methods

Maternal demographic, hearing screening and diagnostic data extracted from publicly available Centers for Disease Control and Prevention (CDC) records were reported to CDC by personnel responsible for EHDI programs. Data were subjected to statistical analysis using analysis of variance and multiple regression techniques.

Results

Results showed no significant differences …

Assessing Impact Of Covid-19 Pandemic On Receipt And Timeliness Of Newborn Hearing Screening And Diagnostic Services Among Infants Born In Four States, Suhana Ema, Sana Charania, Xidong Deng, Charles Rose, Craig A. Mason, Marcus Gaffney, Brandt Culpepper, Michael Lo, Tri Tran, Marcia Fort

Journal of Early Hearing Detection and Intervention

The study compares receipt and timeliness of newborn hearing screening and follow-up diagnostic services between the pre-pandemic birth cohort and the pandemic birth cohort in four participating states. Findings from this study will help inform state Early Hearing Detection and Intervention (EHDI) programs in the future should major public health event occur again.

Likely Impact Of The Covid-19 Pandemic On Newborn Hearing Screening And Follow-Up Services In The United States In 2020, Kelly Dundon, Suhana Alam, Xidong Deng, Mia Morrison, Treeby Brown, Karl R. White, Linda Hazard, Macia Fort, Kirsten R. Coverstone, Craig Mason, Marcus Gaffney

Journal of Early Hearing Detection and Intervention

This perspective aims to highlight aspects of the Early Hearing Detection and Intervention (EHDI) newborn hearing screening and follow-up processes that were impacted by the COVID-19 pandemic and considers factors that likely impacted follow-up after newborn hearing screening among infants born in the United States during 2020. Efforts to minimize the potential impact of missed or delayed identification of hearing loss in infants and young children will also be discussed to help guide future program improvement activities.

The Journal Of Early Hearing Detection And Intervention: Volume 7 Issue 3, Pages 1-98

Journal of Early Hearing Detection and Intervention

No abstract provided.