Digital Commons Network^™

Material Quantities And Estimated Construction Costs For New Elevated Irc 2015-Compliant Single-Family Home Foundations, Yamini Kodavatiganti, Md Adilur Rahim, Carol J. Friedland, Rubayet Bin Mostafiz, Arash Taghinezhad, Shandy Heil

Faculty Publications

Residential foundation selection is critical for the lifetime performance of the project, but the type of foundation selected can depend on cost. This study aims to compare the new construction costs of residential slab-on-fill and four types of crawl space foundations for residential projects by quantifying the material quantities for each and exploring the effect of building characteristics on material quantities and total costs. The building characteristics selected are size (139 m2, 186 m2, and 232 m2), footprint aspect ratio (1:1, 1:2.5, and 1:5) and first floor elevation (0 m–1.2 m in 0.3 m increments). We find that material quantities …

Homeowner Flood Risk And Risk Reduction From Home Elevation Between The Limits Of The 100- And 500-Year Floodplains, Ayat Al Assi, Rubayet Bin Mostafiz, Carol J. Friedland, Robert V. Rohli, Md Adilur Rahim

Faculty Publications

Floods inflict significant damage even outside the 100-year floodplain. Thus, restricting flood risk analysis to the 100-year floodplain (Special Flood Hazard Area (SFHA) in the United States of America) is misleading. Flood risk outside the SFHA is often underestimated because of minimal flood-related insurance requirements and regulations and sparse flood depth data. This study proposes a systematic approach to predict flood risk for a single-family home using average annual loss (AAL) in the shaded X Zone–the area immediately outside the SFHA (i.e., the 500-year floodplain), which lies between the limits of the 1.0- and 0.2-percent annual flood probability. To further …

Feasible Delivery System Based On Poly(Lactictide-Co-Glycolide) Nanoparticles Loaded With Antimicrobial Mupirocin For Possible Wound Healing, Ludmila Košarišťanová, Tomáš Komprda, Vendula Popelková, Tatiana Fialová, Pavla Vymazalová, Carlos E. Astete

Faculty Publications

The objective of the study was to assess cytotoxicity (based on the dimethylthiazol– diphenyltetrazolium bromide cell viability assay) and antimicrobial effects of poly(lactictide-co-glycolide) nanoparticles with entrapped mupirocin (PLGA/MUP NPs) on Staphylococcus aureus and methicillin-resistant S. aureus (MRSA) strains using a disk-diffusion method, cryo-scanning electron microscopy (cryo-SEM) and fluorescence microscopy. Based on the evaluation of the growth curve, PLGA/MUP NPs inhibited growth of the both tested strains already at a concentration of 0.29 µg/ml, and their inhibitory effect at concentrations from 0.29 to 1.17 µg/ml was comparable with free MUP using the disk-diffusion method. PLGA/MUP NPs also tended to increase the …

Gcs Site Selection In Saline Miocene Formations In South Louisiana, Muhammad Zulqarnain, Stephen O. Sears, Mehdi Zeidouni, Richard G. Hughes, Douglas Carlson, Carlos F. Rivera

Faculty Publications

One of the key requirements of a commercial scale geologic carbon sequestration (GCS) site selection process is identifying injection sites to safely inject and retain injected CO2 over extended time scales. This requires thorough evaluation of site-specific surface and subsurface features. A site screening and selection framework was developed and used to identify potential sites in South Louisiana, incorporating surface data including site proximity to large CO2 stationary sources, vicinity of large population centres and state lands, land usage, legacy oil and gas wells, and local/regional geologic trends. Regionally the Miocene sediments thicken and dip towards the south, reflecting a …

International Society Of Sports Nutrition Position Stand: Ketogenic Diets, Arny A. Ferrando, Robert R. Wolfe, Katie R. Hirsch Phd,Ep-C, Cissn, David D. Church, Shiloah A. Kviatkovsky, Michael D. Roberts, Jeffrey R. Stout, Drew E. Gonzalez, Ryan J. Sowinski, Richard B. Kreider, Chad M. Kerksick, Nicholas A. Burd, Stefan M. Pasiakos, Michael J. Ormsbee, Shawn M. Arent Ph.D., Cscs*D, Fissn, Facsm, Fnak, Paul J. Arciero, Bill I. Campbell, Trisha A. Vandusseldorp, Ralf Jager, Darryn S. Willoughby, Douglas S. Kalman, Jose Antonio

Faculty Publications

Position Statement: The International Society of Sports Nutrition (ISSN) presents this position based on a critical examination of literature surrounding the effects of essential amino acid (EAA) supplementation on skeletal muscle maintenance and performance. This position stand is intended to provide a scientific foundation to athletes, dietitians, trainers, and other practitioners as to the benefits of supplemental EAA in both healthy and resistant (aging/clinical) populations. EAAs are crucial components of protein intake in humans, as the body cannot synthesize them. The daily recommended intake (DRI) for protein was established to prevent deficiencies due to inadequate EAA consumption. The following conclusions …

International Society Of Sports Nutrition Position Stand: Energy Drinks And Energy Shots, Andrew R. Jagim, Patrick S. Harty, Grant M. Tinsley, Chad M. Kerksick, Adam M. Gonzalez, Richard B. Kreider, Shawn M. Arent Ph.D., Cscs*D, Fissn, Facsm, Fnak, Ralf Jager, Abbie E. Smith-Ryan, Jeffrey R. Stout, Bill I. Campbell, Trisha Vandusseldorp, Jose Antonio

Faculty Publications

Position Statement: The International Society of Sports Nutrition (ISSN) bases the following position stand on a critical analysis of the literature regarding the effects of energy drink (ED) or energy shot (ES) consumption on acute exercise performance, metabolism, and cognition, along with synergistic exercise-related performance outcomes and training adaptations. The following 13 points constitute the consensus of the Society and have been approved by the Research Committee of the Society: Energy drinks (ED) commonly contain caffeine, taurine, ginseng, guarana, carnitine, choline, B vitamins (vitamins B1, B2, B3, B5, B6, B9, and B12), vitamin C, vitamin A (beta carotene), vitamin D, …

Empowering L2 Learners: The Role Of Relational Empathy In L2 Learning, Gabriela Olivares-Cuhat, Giovanni Zimotti

Faculty Publications

In this article, we explore the relevance of the concept of relational empathy to L2 learning. To this end, we first provide a short overview of the notion of empathy in second language acquisition (SLA). Then, we present ideas that gave rise to the introduction of relational empathy in the field of intercultural communication, along with potential benefits of taking this perspective in SLA. Next, we describe the post-method framework for L2 teaching as a strategy that is both well-suited for the fostering of relational empathy and is facilitated by the exercise of this approach. Following this lead, we explain …

Alcohol Misuse And Gun Violence: An Evidence-Based Approach For State Policy, Silvia Villarreal, Amy Bornhorst, Richard Bonnie, Kami Chavis, Ari Davis, Shannon Frattaroli, Kelly Roskam, Jeffrey Swanson, Joshua Horwitz

Faculty Publications

During the COVID-19 pandemic, excessive drinking increased by 21% and alcohol-related deaths increased approximately 25%.6 At the same time, gun sales increased by 40%, gun homicides by 35%, and gun suicides had the largest one-year increase ever recorded.

These alarming trends urge us to think about alcohol misuse as a risk factor for gun violence. To better understand this connection, the Consortium, in partnership with the Center for Gun Violence Solutions, developed this report to highlight the available research to inform policy. As detailed in this report, alcohol misuse is associated with a risk of dangerous firearm behaviors, interpersonal firearm …

Machine Learning Prediction Of Dod Personal Property Shipment Costs, Tiffany Tucker, Torrey J. Wagner, Paul Auclair, Brent T. Langhals

Faculty Publications

U.S. Department of Defense (DoD) personal property moves account for 15% of all domestic and international moves - accurate prediction of their cost could draw attention to outlier shipments and improve budget planning. In this work 136,140 shipments between 13 personal property shipment hubs from April 2022 through March 2023 with a total cost of $1.6B were analyzed. Shipment cost was predicted using recursive feature elimination on linear regression and XGBoost algorithms, as well as through neural network hyperparameter sweeps. Modeling was repeated after removing 28 features related to shipment hub location and branch of service to examine their influence …

Live-Sky Gnss Signal Processing Using A Dual-Polarized Antenna Array For Multipath Mitigation, Eric Hahn, Sanjeev Gunawardena, Chris Bartone

Faculty Publications

Excerpt: Multipath results from reflections of Global navigation satellite signals (GNSS) signals arriving at a receiver that are delayed with respect to the desired line-of-sight (LOS) signals. The delayed signals distort the received LOS signals, thereby causing pseudorange and carrier phase measurement errors. Traditional multipath mitigation techniques include antenna gain pattern shaping (primarily to reduce ground multipath) and correlator gating techniques (such as narrow correlator and double-delta correlator [1]).

Accelerating A Software Defined Satnav Receiver Using Multiple Parallel Processing Schemes, Logan Reich, Sanjeev Gunawardena, Michael Braasch

Faculty Publications

Excerpt: Satnav SDRs present many benefits in terms of flexibility and configurability. However, due to the high bandwidth signals involved in satnav SDR processing, the software must be highly optimized for the host platform in order to achieve acceptable runtimes. Modules such as sample decoding, carrier replica generation, carrier wipeoff, and correlation are computationally intensive components that benefit from accelerations.

The Behavior Of Partially Coherent Twisted Space-Time Beams In Atmospheric Turbulence, Milo W. Hyde Iv

Faculty Publications

We study how atmospheric turbulence affects twisted space-time beams, which are non-stationary random optical fields whose space and time dimensions are coupled with a stochastic twist. Applying the extended Huygens–Fresnel principle, we derive the mutual coherence function of a twisted space-time beam after propagating a distance z through atmospheric turbulence of arbitrary strength. We specialize the result to derive the ensemble-averaged irradiance and discuss how turbulence affects the beam’s spatial size, pulse width, and space-time twist. Lastly, we generate, in simulation, twisted space-time beam field realizations and propagate them through atmospheric phase screens to validate our analysis.

Initial Public Offerings And The Local Economy: Evidence Of Crowding Out, Jess Cornaggia, Matthew Gustafson, Jason Kotter, Kevin Pisciotta

Faculty Publications

We test the effect of going public on economic growth in the areas surrounding IPO firms. We focus on IPO-filing firms, thus ensuring that both treatment and control firms are at similar life cycle stages, and use post-filing stock market fluctuations as an instrument for IPO completion. We show that IPOs that are large relative to the size of their counties lead to a 1.1 percentage point relative reduction in annual county-level establishment growth, with similar effects for employment and population growth. There are no corresponding effects for relatively small IPOs. These negative effects appear to be driven by a …

Climate Change Risk Perception And Pro-Environmental Behavior: The Moderating Role Of Environmental Values And Psychological Contract Breach, Badar Latif, James Gaskin, Nuwan Gunarathne, Robert Sroufe, Arshian Sharif, Abdul Hanan

Faculty Publications

Purpose – Debates regarding climate change risk perception (CCRP), particularly its scale and impact on social and environmental sustainability, have continued for decades. CCRP is experiencing a renaissance with an increased focus on environmentally relevant behaviors to mitigate the effects of climate change. However, CCRP lacks investigation from the employee perspective. Supported by the social exchange and value–belief–norm theories, this study aims to address the impact of employees’ CCRP on their proenvironmental behavior (PEB) via the moderating roles of environmental values and psychological contract breach.

Design/methodology/approach – The nonprobability convenience sampling technique was used to collect survey data froma sample …

The Impact Of Weibo Features On User’S Information Comprehension: The Mediating Role Of Cognitive Load, Ying Xu, Jia-Qiong Xie, Fu-Xing Wang, Rebecca L. Monk, James Gaskin, Jin-Liang Wang

Faculty Publications

Social media, such as Microblogs, have become an important source for people to obtain information. However, we know little about how this would influence our comprehension over online information. Based on the cognitive load theory, this research explores whether and how two important features of Weibo, which are the feedback function and information fragmentation, would increase cognitive load and may in turn hinder users’ information comprehension in Weibo. A 2 (feedback or non-feedback) × 2 (strong-interference or weak-interference information) between-participants experimental design was conducted. Our results revealed that the Weibo feedback function and interference information exerted a negative impact over …

Charting A Course To The Top: Insights From The Fortune 500 Cios And How They Differ From Other C-Suite Executives, Benjamin Richardson, Degan Kettles, Daniel Mazzola

Faculty Publications

No abstract provided.

Discussion Of "Why Can’T I Trade? Exchange Discretion In Calling Halts", Michael S. Drake

Faculty Publications

Liquidity is an important feature of well-functioning capital markets. While many market frictions exist that constrain liquidity, none are as dramatic as trading halts when trading is suspended altogether. Trading halts became a common feature of US securities markets in the aftermath of Black Monday (October 19, 1987). The hope of regulators was that system-wide trading halts, so-called market circuit breakers, would decrease the likelihood of dramatic sell-offs by allowing markets to cool off. Regulators further argued that security-specific trading halts implemented in advance of a material news release could also reduce volatility and help level the playing field between …

Ethnic Minority Analysts’ Participation In Public Earnings Conference Calls, Rachel W. Flam, Jeremiah Green, Joshua A. Lee, Nathan Y. Sharp

Faculty Publications

We investigate ethnic minority and non-minority sell-side analysts’ participation in public earnings conference calls. We find that minority analysts are underrepresented in conference call Q&A sessions, and minority analysts who do participate on the calls experience lower levels of prioritization than do nonminority analysts. Minority analysts’ lower participation rates are partially but not fully mediated by characteristics such as experience, work environment, and stock rating favorability. Additionally, firm and conference call fixed effects mediate approximately half the magnitude of lower minority participation rates. Extroverted minority analysts participate at higher rates, but the negative association between minority status and conference call …

Managers’ Use Of Humor On Public Earnings Conference Calls, Andrew C. Call, Rachel W> Flam, Joshua A. Lee, Nathan Y. Sharp

Faculty Publications

Despite the prevalence and importance of humor in interpersonal communication, the disclosure literature is silent on the use of humor in the context of corporate communication. Using a sophisticated machine learning algorithm, we identify managers’ successful uses of humor during public earnings conference calls. When managers use humor on an earnings call, stock market returns and analyst forecast revisions following the call are more positive, primarily because of a muted response to negative earnings news. Consistent with managers’ successful use of humor being a favorable signal of future firm performance, we find no evidence of a return reversal over the …

“Someone In Their Corner”: Parental Support In Online Secondary Education, Courtney N. Hanny, Charles R. Graham, Richard E. West, Jered Borup

Faculty Publications

Despite increased interest in K–12 online education, student engagement deficits and the resulting student attrition remain widespread issues. The Academic Communities of Engagement (ACE) framework theorizes that two groups support online student engagement: the personal community of support and the course community of support. However, more evidence is needed to understand how members of these communities, especially parents, support students in various contexts. Using insights gleaned from 14 semi-structured interviews of parents with students enrolled in online secondary school, this study adds support to the roles identified in the ACE framework by presenting real examples of parents supporting their online …

The Audit Quality Effects Of Small Audit Firm Mergers In The United States, Brant E. Christensen, Kecia Williams Smith, Dechun Wang, Devin Williams

Faculty Publications

Increased audit regulation, coupled with reports of frequent mergers among smaller audit firms, creates a dynamic environment in which to assess changes in the U.S. audit market. We examine the audit quality consequences of audit firm mergers between small audit firms that audit public clients, a topic about which little is known. Using a sample of small audit firms each involved in a single merger during 2004-2016, we find consistent evidence that post-merger audit quality decreases when PCAOB-identified audit deficiencies and audit fees are used as proxies for audit quality. In addition, we find weak evidence of lower post-merger audit …

A Multi-Measure Approach For Lexical Diversity In Writing Assessments: Considerations In Measurement And Timing, Kelly Woods, Brett James Hashimoto, Earl K. Brown

Faculty Publications

Several researchers (e.g., Gebril & Plakans, 2016; Crossley & McNamara, 2012) have noted a relationship between lexical diversity (LD) and writing proficiency. Previous research has indicated that typical LD measures can account for as much as 44 % of variability in writing proficiency (Crossley et al., 2011). However, it remains unclear which of the numerous LD measures (or combination of measures) that exist best predict writing proficiency (e.g., McCarthy & Jarvis, 2010). The present study addresses these issues using scored writing assessment samples from 911 ESL students. LD was assessed with a battery of ten measures through the Python lexical-diversity …

Boomer Peak Or Gen X Cliff? From Svs To Lbms In Georgia English, Margaret E. L. Renwick, Joseph A. Stanley, Jon Forrest, Lelia Glass

Faculty Publications

The late twentieth century in the United States marks the decline of regional vowel systems like the Northern Cities Shift and the Southern Vowel Shift, replaced by supralocal systems like the Low-Back-Merger Shift.We chart such change in acoustic data from seven generations of White speakers (n = 135) in the Southeastern state of Georgia. We analyze front vowels affected by both the SVS and LBMS (DRESS, TRAP), plus PRICE and FACE, known respectively to monophthongize and centralize in the SVS, and LBMS-implicated LOT/ THOUGHT. The SVS is most advanced among Georgians born in the mid-twentieth century, particularly in FACE-centralization. In …

Uncertainty, Sensory Processing, And Stress In Autistic Children During The Covid-19 Pandemic, Garrett Cardon, Mollie Bradley

Faculty Publications

Background: COVID-19 increased uncertainty for most and was especially disruptive to autistic people and their families, due in part to tendencies toward intolerance for uncertainty across this population. As such, COVID presented a natural experiment of uncertainty and its correlates in autism. Previous reports have shown associations between intolerance of uncertainty, sensory difficulty, and stress. Aims: We investigated changes in sensory difficulties and stress associated with COVID-related increases in uncertainty. Methods and procedures: Primary caregivers of 47 autistic children (ages 6–15) completed online surveys containing questions about demographics, experiences, and supports received during the pandemic. Additionally, caregivers filled out measures …

A Preliminary Investigation Of A Brief Tier 1 Classroom Management Measure, Allison F. Gilmour, Joseph H. Wehby, Jessica Boyle, Howard P. Wills, Paul Caldarella

Faculty Publications

Multitiered systems for supporting students’ behavior in schools rely on teachers using generally effective classroom management strategies, such as Tier 1 practices. However, few tools exist to easily assess classwide Tier 1 practices. In this brief report, we describe one potential tool, the Classroom Atmosphere Rating Scale–Brief (CARS-B) and assess the properties of the tool using item response theory and multilevel models. We found that most items on the CARS-B had acceptable discriminations and difficulty estimates. Teachers’ CARS-B latent scores were positively associated with student group on-task. We discuss potential changes to the CARS-B and its use in research and …

Genomic Data From Paquimé: Understanding The Cultural And Genetic Ties Of The Site, Meradeth Snow, Michael Seary, Jakob Sedig, Jose Luis Punzo-Diaz

Faculty Publications

Paquimé, located in the Casas Grandes region of Northern Mexico, presents a rich cultural tradition with ties to populations to the South and North. Ancient mitochondrial DNA from Paquime’s occupants has not provided evidence of large-scale in-migration that led to the fluorescence of the site, as some scholars have hypothesized. This paper focuses on nuclear genomes that have been sequenced for 20+ Paquimé individuals, further demonstrating the complexity of the region and of the city. The emerging data (collected with approval from the Mexican Consejo de Arqueología) presents a clearer view both of the population’s genetic relationships with those to …

Corticosteroid-Laba Inhalers Increase Phonation Threshold Pressure (Ptp) And Flow (Ptf) In Rabbits, Christopher Dromey, Kristine Tanner, Heidi J. Robison, Maya Elena Stevens, Ray M. Merrill, Julie Barkmeier-Kraemer, Ben Christensen

Faculty Publications

Objectives: This study examined the effects of a combination corticosteroid plus long-acting beta2-adrenergic agonist inhaler (IC) on rabbit phonation. Methods: White New Zealand male rabbits were assigned randomly to experimental and control groups (n = 11 per group). The experimental group received twice-daily doses of Advair HFA™ (fluticasone propionate 45 mcg and salmeterol 21 mcg) via a veterinary facemask with 1-way valve and spacer; the control group received aerosolized saline. After 8 weeks, animals were euthanized, larynges excised, frozen, and subsequently thawed and mounted on a standard bench apparatus. Phonation was elicited during 15 successive trials, and phonation threshold pressure …

Triangular Fin Array Passively Actuated By Bimetallic Coils For Cubesat Thermal Control, Josh Cannon, Rydge B. Mulford, Brian D. Iverson

Faculty Publications

CubeSat thermal control can be especially demanding due to volume and size constraints, high power dissipation per unit surface area, and highly variable internal and external heat loads. As such, CubeSat developers must rely on thermal control systems that meet the specific requirements of their mission and environmental conditions. Deployable radiators enable satellites to increase their radiative surface area and to reveal highly emissive surfaces during times when increased heat rejection is desired. In colder conditions, when decreased heat loss is preferable, the radiators can be stowed. Passive thermal control systems are unpowered and can increase system reliability by not …

Innovations In Ipo Deal Structure: Do Up-C Ipos Harm Public Shareholders?, Mary Brooke Billings, Kevin Hsueh, Melissa F. Lewis-Western, Gladriel Shobe

Faculty Publications

This paper examines an innovation in capital formation that has spurred contentious debate: the Umbrella Partnership Corporation (“Up-C”) IPO. Advisors and underwriters argue that the Up-C deal structure is a driver of post-IPO value and, thus, is a value-enhancing means of raising capital that may be one solution to concerns regarding the drop in the number of publicly traded companies. Consistent with these claims, recent research suggests that organizing soon-to-be public businesses as pass-through entities (as is the case for Up-Cs) leads to superior future performance. Yet, broadening the analysis to consider abnormal stock performance and post-IPO litigation of a …

Multiple-Choice Reading Behaviors Of Esl Students: An Eye-Tracking Study, Juan Escalante, Grant Eckstein, Troy L. Cox, Steven Luke

Faculty Publications

Only recently has eye-tracking been used to investigate test-taker reading behavior, and results have been primarily used to confirm a range of cognitive tasks elicited by test items. This study explores test taker reading behavior for its own sake by describing how ESL readers of different proficiency levels behaviorally view multiple-choice passages and test items at different difficulty levels. Data were gathered from 51 students at three proficiency levels attending a university-sponsored intensive English program (IEP). Participants read eight validated reading comprehension items at varying difficulty levels while their eye movements were recorded on the passage, multiple-choice stem, correct answer, …