Digital Commons Network^™

The Challenges Of Evaluating The Usability Of Augmented Reality (Ar), Jessyca L. Derby, Barbara S. Chaparro

Publications

Augmented reality (AR) is a new and emerging technology that could benefit from evaluating its usability to better the user’s experience with the device or application. This is often done through usability testing and heuristic evaluations. However, AR technology presents some challenges when completing these usability evaluations. Practitioners need to keep in mind the hardware limitations of AR devices that may not be present with other computerized technology, consistency of the users’ environment plays a larger role in the AR experience, recognize that a novelty effect may occur and affect subjective scores, and choose heuristic sets that will best evaluate …

Effect Of Driver Distraction On Vehicle Speed Control, Emily Parcell, Shivani Patel, Cameron Severin, Yoona Cho, Alex Chaparro

Publications

Performing a secondary task while driving impairs various performance measures, including speed control. Distraction is associated with reductions in driving speed; however, this is often based on global measures of performance, such as course completion time or mean speed. This study investigated how a secondary task affected granular speed variation. Participants (N=16, ages 18-43) performed a secondary task of mentally subtracting pairs of numbers while negotiating a simulated road course. Various driving performance measures were obtained but only results for longitudinal velocity are reported. The results reveal that drivers exhibited significant increases and decreases (>2+/- SD) in vehicle speed …

Best Practices For Reducing Interface Errors In Electronic Medical Records, Paige Lawton, Janel M. Ingraham, Beth Blickensderfer

Publications

As Electronic Medical Records (EMR) become increasingly prevalent, the application of human factors principles is essential to facilitate efficiency and usability of these systems and, in turn, to reduce adverse patient outcomes due to user errors relating to the EMR. This paper describes five “best practices” found in the literature which aim to prevent error in the use of Electronic Medical Records. These practices are: Watermarking, Information Control and Management, Hybrid Systems, Cross-Checking Methodology, and Interface Modification. The paper describes each practice and examines the research underlying each approach. Although some practices may be easier to apply than others, they …

Improving Peer Review Of Systematic Reviews By Involving Librarians And Information Specialists: Protocol For A Randomized Controlled Trial, Melissa L. Rethlefsen, Sara Schroter, Lex M. Bouter, David Moher, Ana Patricia Ayala, Jamie J. Kirkham, Maurice P. Zeegers

Publications

BACKGROUND: Problems continue to exist with the reporting quality and risk of bias in search methods and strategies in systematic reviews and related review types. Peer reviewers who are not familiar with what is required to transparently and fully report a search may not be prepared to review the search components of systematic reviews, nor may they know what is likely to introduce bias into a search. Librarians and information specialists, who have expertise in searching, may offer specialized knowledge that would help improve systematic review search reporting and lessen risk of bias, but they are underutilized as methodological peer …

Moisture Affinity Of Hdpe/Phase-Change Material Composites For Thermal Energy Storage Applications, Sandra K. Boetcher, Thomas B. Freeman, Rafael M. Rodriguez, Kashif Nawaz

Publications

Moisture adsorption can degrade the structural integrity of thermal energy storage devices and can negatively impact the capacity and charging/discharging behavior. Steady-state and transient experiments are conducted at various operating temperatures to evaluate the moisture affinity of organic phase-change material (PCM) shape stabilized with high-density polyethylene (HDPE).

Prediction Of Heterosis In The Recent Rapeseed (Brassica Napus) Polyploid By Pairing Parental Nucleotide Sequences, Qian Wang, Tao Yan, Zhengbiao Long, Luna Yue Huang, Yang Zhu, Ying Xu, Xiaoyang Chen, Haksong Pak, Jiqiang Li, Dezhi Wu, Yang Xu, Shuijin Hua, Lixi Jiang

Publications

The utilization of heterosis is a successful strategy in increasing yield for many crops. However, it consumes tremendous manpower to test the combining ability of the parents in fields. Here, we applied the genomic-selection (GS) strategy and developed models that significantly increase the predictability of heterosis by introducing the concept of a regional parental genetic-similarity index (PGSI) and reducing dimension in the calculation matrix in a machine-learning approach. Overall, PGSI negatively affected grain yield and several other traits but positively influenced the thousand-seed weight of the hybrids. It was found that the C subgenome of rapeseed had a greater impact …

Hepatitis C Virus Care Cascade In Persons Experiencing Homelessness In The United States In The Era Of Direct-Acting Antiviral Agents: A Scoping Review, Aubrey Del Rosario, Jonathan Eldredge, Sara Doorley, Shiraz I. Mishra, Denece Kesler, Kimberly Page

Publications

The hepatitis C virus (HCV) care cascade has been well characterized in the general United States population and other subpopulations since curative medications have been available. However, information is limited on care cascade outcomes in persons experiencing homelessness. The main objective of this study was to map the available evidence on HCV care cascade outcomes in people experiencing homelessness in the U.S. in the era of direct-acting antiviral agents (DAAs). Primary and secondary outcomes included linkage to care (evaluation by a provider that can treat HCV) and sustained virologic response (SVR) or cure. Exploratory outcomes included other cascade data, like …

Digital Technology And Disease Surveillance In The Covid-19 Pandemic: A Scoping Review Protocol, Lorie Donelle Phd, Rn, Fcan, Jodi Hall, Brad Hiebert, Jacob J. Shelley, Maxwell J. Smith, Jason Gilliland, Saverio Stranges, Anita Kothari, Jacquelyn Burkell, Tommy Cooke, Jed Long, James M. Shelley, Deanna Befus, Leigha Comer, Marionette Ngole, Meagan Stanley

Publications

INTRODUCTION: Infectious diseases pose a risk to public health, requiring efficient strategies for disease prevention. Digital health surveillance technologies provide new opportunities to enhance disease prevention, detection, tracking, reporting and analysis. However, in addition to concerns regarding the effectiveness of these technologies in meeting public health goals, there are also concerns regarding the ethics, legality, safety and sustainability of digital surveillance technologies. This scoping review examines the literature on digital surveillance for public health purposes during the COVID-19 pandemic to identify health-related applications of digital surveillance technologies, and to highlight discussions of the implications of these technologies. METHODS AND ANALYSIS: …

Women In Aviation: A Phenomenological Study Exploring The Needs And Wants Necessary For Graduation, Eugene Kim, Jorge L. Albelo

Publications

Despite the increased awareness of gender and race equality movements, today's population of minority women in aviation is still underrepresented. This research focused on underrepresented minority women who want to pursue a career in the aviation field and what factors affect their level of success in a specialized aviation higher education institution. There is not enough data and research surrounding the topic of minority women in aviation and their paths to success in these institutions. This qualitative research aimed to bridge the existing gap in the literature related to minority women in aviation and their needs and wants to complete …

How Faculty’S Academic Support Influence First-Year Female Students In Aviation: A Qualitative Case Study, Eugene Kim, Jorge L. Albelo

Publications

An increasing number of female students are enrolling in aviation education institutions to pursue their dreams. To combat the issue of the underrepresentation of females, this case study explored the significance of faculty’s academic support to first-year females in aviation. There is scant research surrounding the topic of faculty in higher education and their perspectives on academic support. This case study aimed to bridge the existing literature gap related to faculty’s academic support and teaching styles to first-year female students. This qualitative case study’s objective was to increase awareness of the importance of faculty’s academic support and better understand how …

Student Engagement In Aviation Massive Open Online Courses (Moocs), Jennifer M. Edwards, Haydee M. Cuevas, Felix Brito, Mark Friend, Maryjo O. Smith

Publications

As online training in the aviation industry continues to expand, understanding how learners engage in open online courses may help inform course design. Currently little is known about student engagement in aviation Massive Open Online Courses (MOOCs) and more information is needed about those who utilize, but do not complete them. Datasets from two aviation MOOCs were cluster-analyzed to determine subpopulations based on activity (discussions, videos, quizzes). Differences were examined for days of activity and completion. Survey data revealed differences in demographics and learning goals. Three significantly different subgroups were found for each MOOC. Engagement patterns were similar between corresponding …

Analyzing The Effect Of Delta Airlines' Fleet Upgrade On Operations At Atlanta-Hartsfield Jackson International Airport, Carlos Alberto Castro, Shlok Misra

Publications

Commercial aviation has seen a growth in terms of passengers traveled and flights operated in the past decade (BTS, 2020). To cope up with this growth, airlines adopt various strategies such as network expansion and fleet upgrades. Airlines adopt fleet upgrade strategies to modernize their fleet, reduce costs, expand network coverage, and improve customer loyalty and experience. Research suggests that change in wake turbulence categorization and aircraft performance can directly impact the movements and delays at an airport. For this study, Delta Airline's fleet upgrade program and its effect on operating parameters at Atlanta-Hartsfield Jackson International Airport were analyzed. The …

Predicting A Consumer’S Willingness To Fly With Covid-19 Passport: Domestic And International Models, Sean R. Crouse, Elizabeth K. Combs, Katherine Bell

Publications

COVID-19 has created a problematic situation for the aviation industry. As vaccines are developed and deployed, more individuals will be vaccinated. A COVID-19 passport has been proposed to ensure those flying into different areas will not increase the risk of spread. Method: This study used a multi-model analysis to develop two regression equations to determine predictive factors for a consumer’s willingness to fly with a COVID-19 passport, domestically or internationally. Participants answered demographics, universal emotions, perceived COVID-19 threat, personality traits, pre-pandemic flight habits, and their willingness to obtain the COVID-19 vaccine. A two-stage approach was used to conduct the data …

Zero-Bias Deep Neural Network For Quickest Rf Signal Surveillance, Yongxin Liu, Jian Wang, Dahai Liu, Houbing Song, Yingjie Chen, Shuteng Niu

Publications

The Internet of Things (IoT) is reshaping modern society by allowing a decent number of RF devices to connect and share information through RF channels. However, such an open nature also brings obstacles to surveillance. For alleviation, a surveillance oracle, or a cognitive communication entity needs to identify and confirm the appearance of known or unknown signal sources in real-time. In this paper, we provide a deep learning framework for RF signal surveillance. Specifically, we jointly integrate the Deep Neural Networks (DNNs) and Quickest Detection (QD) to form a sequential signal surveillance scheme. We first analyze the latent space characteristic …

Mosaic: A Satellite Constellation To Enable Groundbreaking Mars Climate System Science And Prepare For Human Exploration, Robert J. Lillis, David Mitchell, Luca Montabone, Nicholas Heavens, Tanya Harrison, Cassie Stuurman, Et. Al.

Publications

The Martian climate system has been revealed to rival the complexity of Earth's. Over the last 20 yr, a fragmented and incomplete picture has emerged of its structure and variability; we remain largely ignorant of many of the physical processes driving matter and energy flow between and within Mars' diverse climate domains. Mars Orbiters for Surface, Atmosphere, and Ionosphere Connections (MOSAIC) is a constellation of ten platforms focused on understanding these climate connections, with orbits and instruments tailored to observe the Martian climate system from three complementary perspectives. First, low-circular near-polar Sun-synchronous orbits (a large mothership and three smallsats spaced …

Is Executive Dysfunction A Potential Contributor To The Comorbidity Between Basic Reading Disability And Attention-Deficit/Hyperactivity Disorder?, Michelle Y Kibby, Genni Newsham, Zsofia Imre, Jennifer E Schlak

Publications

Our study is one of the few to analyze executive functioning (EF) in a

Water Requirements For Growth And Survival Of Swietenia Macrophylla And Tabebuia Heterophylla Juvenile Trees In Relation To Water Production Capacity Of Dew Condensers1, Jodelin Seldon, Victor A. Snyder, Eric Harmsen, Skip Van Bloem

Publications

Drought mortality of juvenile trees is a major cause for failure of reforestation projects. Portable devices such as passive radiative dew condensers can often provide 0.15 L/day of water in situ, possibly sufficient for tree survival until roots can access groundwater, allowing self-sustainability. To evaluate growth and survivability of juvenile trees of Tabebuia heterophylla Britton and Swietenia macrophylla King under such low water amounts, juvenile trees received approximately 0.033, 0.067, 0.134, 0.201 and 0.268 L/tree/day, representing fractions (relative evapotranspiration or RET) of 0.125, 0.25, 0.50, 0.75 and 1.00 of the evapotranspiration demand (ETo). The experiment lasted 60 days for S. …

Systematic Review And Regression Modeling Of The Effects Of Age, Body Size, And Exercise On Cardiovascular Parameters In Healthy Adults, Aseem Pradhan, John Scaringi, Patrick Gerard, Ross Arena, Jonathan Myers, Leonard A. Kaminsky, Ethan Kung

Publications

Purpose

Blood pressure, cardiac output, and ventricular volumes correlate to various subject features such as age, body size, and exercise intensity. The purpose of this study is to quantify this correlation through regression modeling.

Methods

We conducted a systematic review to compile reference data of healthy subjects for several cardiovascular parameters and subject features. Regression algorithms used these aggregate data to formulate predictive models for the outputs—systolic and diastolic blood pressure, ventricular volumes, cardiac output, and heart rate—against the features—age, height, weight, and exercise intensity. A simulation-based procedure generated data of virtual subjects to test whether these regression models built …

Plaque Contact Surface Area And Flow Lumen Volume Predict Stroke Risk In Extracranial Carotid Artery Stenosis, Ryan Gendey, Ethan Kung, Veena Mehta, Adam Brown, Matthew Bridges, Ravi Veeraswamy

Publications

The standard indication for intervention in asymptomatic disease is currently percent stenosis in the internal carotid artery as measured by the NASCET method, which remains limited in discriminating power. CT angiography (CTA) is widely used to calculate NASCET stenosis but also offers the opportunity to analyze carotid artery plaques from a morphological perspective that has not been widely utilized. We aim to improve stroke risk stratification of patients with carotid artery stenosis using plaque 3D modeling and image analysis. Patients with CTAs appropriate for 3D reconstruction were identified from an NIH designated stroke center database, and carotid arteries were segmented …

Undergraduate Research In A Fully Online Engineering Program: Building The Framework Of Support, Emily Faulconer, Robert Deters, Brent Terwilliger

Publications

Undergraduate engineering programs often face low persistence and retention.

• Females and ethnic minorities are underrepresented and show lower persistence
• Certain minorities may be less likely to enroll in online programs
• Lower persistence and retention in online students across disciplines

Undergraduate research may increase persistence and retention.

• Online students likely underrepresented due to access limitations

Aessa Young Professionals Forum Webinar “Technologies And Skills That Will Gearup The Aerospace Industry Post Pandemic” - A Global Perspective With An Emphasis On South Africa October 2021, Linda Vee Weiland

Publications

A webinar presentation for AeSSA Young Professionals.

General Aviation Flight Safety During The Covid-19 Pandemic, Douglas D. Boyd

Publications

BACKGROUND/OBJECTIVE: The COVID-19 virus has caused over 582,000 deaths in the United States to date. However, the pandemic has also afflicted the mental health of the population at large in the domains of anxiety and sleep disruption, potentially interfering with cognitive function. From an aviation perspective, safely operating an aircraft requires an airmans cognitive engagement for: 1) situational awareness, 2) spatial orientation, and 3) avionics programming. Since impaired cognitive function could interfere with such tasks, the current study was undertaken to determine if flight safety for a cohort of single engine, piston-powered light airplanes was adversely affected during a period …

Piloting A Diversity, Equity, And Inclusion Needs Assessment To Explore Patron Perceptions At A University Health Science Library, Jane Morgan-Daniel, Lauren E. Adkins, Michele R. Tennant, Hannah F. Norton, Chloe Hough, Mary E. Edwards, Matthew Daley, Melissa L. Rethlefsen

Publications

Objective: A diversity, equity, and inclusion (DEI) needs assessment was conducted at a health sciences library. The objectives were to (1) quantitatively assess patrons’ attitudes towards the existing DEI climate in the library and (2) qualitatively identify contextual factors influencing patrons’ perceptions. The purpose was to better understand patrons’ views of the DEI climate in order to identify potential gaps, strengths, and areas of improvement within the library.

Population: The assessment was led by a DEI Team at the University of Florida’s Health Science Center Libraries (HSCL). HSCL serves the university’s six health science colleges from two sites, Gainesville and …

Identifying Sources Of Anxiety In An Introductory Online Undergraduate Chemistry Course, Emily Faulconer, John C. Griffith

Publications

Learning chemistry in an online environment may have multiple sources of anxiety for students, including chemistry anxiety, math anxiety, computer anxiety, and trait anxiety (personality attribute of proneness to experience anxiety). While previous research has explored relationships between math and chemistry anxiety in a traditional setting, no studies have explored these anxieties in the online modality. Survey data were collected using existing scales (some with minor modifications), with a response rate of 31%. The scales used in this study demonstrated strong reliability. Highest sources of anxiety for each scale were presented. The perceived ease of use scale score was used …

No Bones About Art, Lydia Lytal, Brooke A. Whitworth, Gail Morton

Publications

No abstract provided.

In-Person Prehealth Advising: Impact Analysis Spring 2017 To Fall 2020, Alasdair Ekpenyong, Mykel Beorchia

Publications

At Utah State University, some of the advising department’s efforts specifically focus on preparing students for study in health professions graduate school. Students considering a career in the health sciences meet with an advisor who has been trained on the nuances of preparing for health professions graduate school.

This report explored the association between in-person prehealth advising participation and student persistence to the next term.

Multifunctional Corrosion Control System As A Sustainable Approach For Reinforced Concrete Elements, Homero Castaneda, Miladin Radovic, Brendy Rincon, Oladis Troconis, Arturo Montoya, Changkyu Kim, Loreto Dacio

Publications

Corrosion inhibitors can be utilized to decrease the corrosion kinetics and therefore increase the durability of reinforced concrete structures. Recently, a green synthesized organic compound, 1-benzyl-4-phenyl-1H-1,2,3-triazole (BPT), was shown to be a successful green organic corrosion inhibitor for mild steel. Studies suggested that the BPT adsorbs chemically onto the steel and acts as a mixed inhibitor, suppressing both the anodic and cathodic corrosion kinetics of steel. In addition, microcapsules have shown to be an efficient way for a controlled inhibitor release in reinforced concrete structures. On the other hand, geopolymers (GPs) comprised of a long range of covalently bonded alumino-silicates, …

Catching Lightning In A Bottle: Surveying Plagiarism Futures, Zachary Dixon, Kelly Whealan George, Tyler Carr

Publications

The digitization of higher education is evolving academic misconduct, posing both new challenges to and opportunities for academic integrity and its research. The digital evidence inherent to online-based academic misconduct produces new avenues of replicable, aggregate, and data-driven (RAD) research not previously available. In a digital mutation of the misuse of unoriginal material, students are increasingly leveraging online learning platforms like CourseHero.com to exchange completed coursework. This study leverages a novel dataset recorded by the upload of academic materials on CourseHero.com to measure how at-risk sample courses are to potential academic misconduct. This study’s survey of exchanged coursework reveals that …

Add Me As A Friend: Face To Face Vs. Online Friendships And Implications For Happiness, Andrew Griggs, Emily Rickel, Elizabeth Lazzara, Christina Frederick

Publications

Friendships are beneficial to individual happiness. Studies have examined virtual relationships; however, the quality and utility of adult, online gaming friendships and their relationship with happiness is still not well understood. Respondents were surveyed about friendship quality with their closest friends across two modalities (face-to-face or online via gaming), as well as other relationship characteristics including communication frequency and friendship length. We identified a statistically significant difference between the modalities in friendship quality. We also identified a relationship between friendship quality and happiness. We discuss these results in terms of practical implications concerning friendship quality in face-to-face and online gaming …

Mammalian And Invertebrate Models As Complementary Tools For Gaining Mechanistic Insight On Muscle Responses To Spaceflight, Amber M. Paul, Thomas Cahill, Henry Cope, Joseph J. Bass, Eliah G. Overbey, Rachel Gilbert

Publications

Bioinformatics approaches have proven useful in understanding biological responses to spaceflight. Spaceflight experiments remain resource intensive and rare. One outstanding issue is how to maximize scientific output from a limited number of omics datasets from traditional animal models including nematodes, fruit fly, and rodents. The utility of omics data from invertebrate models in anticipating mammalian responses to spaceflight has not been fully explored. Hence, we performed comparative analyses of transcriptomes of soleus and extensor digitorum longus (EDL) in mice that underwent 37 days of spaceflight. Results indicate shared stress responses and altered circadian rhythm. EDL showed more robust growth signals …