Digital Commons Network^™

Study On Soft Robotic Pinniped Locomotion, Dimuthu D.K. Arachchige, Tanmay Varshney, Umer Huzaifa, Iyad Kanj, Thrishantha Nanayakkara, Yue Chen, Hunter B. Gilbert, Isuru S. Godage

Faculty Publications

Legged locomotion is a highly promising but under-researched subfield within the field of soft robotics. The compliant limbs of soft-limbed robots offer numerous benefits, including the ability to regulate impacts, tolerate falls, and navigate through tight spaces. These robots have the potential to be used for various applications, such as search and rescue, inspection, surveillance, and more. The state-of-the-art still faces many challenges, including limited degrees of freedom, a lack of diversity in gait trajectories, insufficient limb dexterity, and limited payload capabilities. To address these challenges, we develop a modular soft-limbed robot that can mimic the locomotion of pinnipeds. By …

Dynamic Modeling And Validation Of Soft Robotic Snake Locomotion, Dimuthu D.K. Arachchige, Sanjaya Mallikarachchi, Iyad Kanj, Dulanjana M. Perera, Yue Chen, Hunter B. Gilbert, Isuru S. Godage

Faculty Publications

Soft robotic snakes made of compliant materials can continuously deform their bodies and, therefore, mimic the biological snakes' flexible and agile locomotion gaits better than their rigid-bodied counterparts. Without wheel support, to date, soft robotic snakes are limited to emulating planar locomotion gaits, which are derived via kinematic modeling and tested on robotic prototypes. Given that the snake locomotion results from the reaction forces due to the distributed contact between their skin and the ground, it is essential to investigate the locomotion gaits through efficient dynamic models capable of accommodating distributed contact forces. We present a complete spatial dynamic model …

Show Us The Data: Global Covid-19 Wastewater Monitoring Efforts, Equity, And Gaps, Colleen C. Naughton, Fernando A. Roman, Ana Grace F. Alvarado, Arianna Q. Tariqi, Matthew A. Deeming, Krystin F. Kadonsky, Kyle Bibby, Aaron Bivins, Gertjan Medema, Warish Ahmed, Panagis Katsivelis, Vajra Allan, Ryan Sinclair, Joan B. Rose

Faculty Publications

A year since the declaration of the global coronavirus disease 2019 (COVID-19) pandemic, there were over 110 million cases and 2.5 million deaths. Learning from methods to track community spread of other viruses such as poliovirus, environmental virologists and those in the wastewater-based epidemiology (WBE) field quickly adapted their existing methods to detect SARS-CoV-2 RNA in wastewater. Unlike COVID-19 case and mortality data, there was not a global dashboard to track wastewater monitoring of SARS-CoV-2 RNA worldwide. This study provides a 1-year review of the “COVIDPoops19” global dashboard of universities, sites, and countries monitoring SARS-CoV-2 RNA in wastewater. Methods to …

Event-Triggered Control Under Unknown Input And Unknown Measurement Delays Using Interval Observers, Michael Malisoff, Frederic Mazenc, Corina Barbalata

Faculty Publications

We provide a new input-to-state stabilizing event-triggered feedback design for linear systems with unknown input delays, unknown measurement delays, and unknown additive disturbances. Our trigger times are computed using only the matrices defining the system and time-lagged sampled state values. We use the theory of positive systems, interval observers, and a vector version of Halanay's inequality. We illustrate our method using a marine robotic model.

Historical Global And Regional Spatiotemporal Patterns In Daily Temperature, Md Adilur Rahim, Robert V. Rohli, Rubayet Bin Mostafiz, Nazla Bushra, Carol J. Friedland

Faculty Publications

The abrupt increase in surface air temperature over the last few decades has received abundant scholarly and popular attention. However, less attention has focused on the specific nature of the warming spatially and seasonally, using high-resolution reanalysis output based on historical temperature observations. This research uses the European Centre for Medium-range Weather Forecasts (ECMWF) Reanalysis Version 5 (ERA5) output to identify spatiotemporal features of daily mean surface air temperature, defined both as the mean of the maximum and minimum temperatures over the calendar day (“meanmaxmin”) and as the mean of the 24 hourly observations per day (“meanhourly”), across the terrestrial …

Analytical Advances In Homeowner Flood Risk Quantification Considering Insurance, Building Replacement Value, And Freeboard, Md Adilur Rahim, Rubayet Bin Mostafiz, Carol J. Friedland, Robert V. Rohli, Nazla Bushra

Faculty Publications

An accurate economic loss assessment for natural hazards is vital for planning, mitigation, and actuarial purposes. The widespread and costly nature of flood hazards, with the economically disadvantaged disproportionately victimized population, makes flood risk assessment particularly important. Here, flood risk is assessed as incurred by the homeowner vs. the flood insurer for insured U.S. properties through the derivation of average annual loss (AAL). AAL is estimated and partitioned using Monte Carlo simulation at the individual home scale, considering insurance coverage and deductible, and the first-floor height (i.e., height of the first floor above the ground), to determine the AAL proportion …

Freeboard Life-Cycle Benefit-Cost Analysis Of A Rental Single-Family Residence For Landlord, Tenant, And Insurer, Ehab Gnan, Rubayet Bin Mostafiz, Md Adilur Rahim, Carol J. Friedland, Robert V. Rohli, Arash Taghinezhad, Ayat Al Assi

Faculty Publications

Flood risk to single-family rental housing remains poorly understood, leaving a large and increasing population underinformed to protect themselves, including regarding insurance. This research introduces a life-cycle benefit-cost analysis for the landlord, tenant, and insurer [i.e., (U.S.) National Flood Insurance Program (NFIP)] to optimize freeboard [i.e., additional first-floor height above the base flood elevation (BFE)] selection for a rental single-family home. Flood insurance premium; apportioned flood risk among the landlord, tenant, and NFIP by insurance coverage and deductible; rental loss; moving and displacement costs; freeboard construction cost; and rent increase upon freeboard implementation are considered in estimating net benefit (NB) …

Flood Damage And Shutdown Times For Industrial Process Facilities: A Vulnerability Assessment Process Framework, Carol J. Friedland, Fatemeh Orooji, Ayat Al Assi, Matthew L. Flynn, Rubayet Bin Mostafiz

Faculty Publications

Much of the U.S. petrochemical infrastructure is heavily concentrated along the western coast of the Gulf of Mexico within the impact zone of major tropical cyclone events. Flood impacts of recent tropical disturbances have been exacerbated by an overall lack of recognition of the vulnerabilities to process systems from water intrusion, as well as insufficient disaster mitigation planning. Vulnerability assessment methods currently call for the aggregation of qualitative data to survey the susceptibility of industrial systems to floodwater damage. A means to quantify these consequences is less often employed, resulting in a poor translation of the threat of flood hazards …

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 …

In Search Of Founding Era Registers: Automatic Modeling Of Registers From The Corpus Of Founding Era American English, Liina Repo, Brett James Hashimoto, Veronika Laippala

Faculty Publications

Registers are situationally defined text varieties, such as letters, essays, or news articles, that are considered to be one of the most important predictors of linguistic variation. Often historical databases of language lack register information, which could greatly enhance their usability (e.g. Early English Books Online). This article examines register variation in Late Modern English and automatic register identification in historical corpora. We model register variation in the corpus of Founding Era American English (COFEA) and develop machine-learning methods for automatic register identification in COFEA. We also extract and analyze the most significant grammatical characteristics estimated by the classifier for …

Get Out: Structural Racism And Academic Terror, Renee Nicole Allen

Faculty Publications

Released in 2017, Jordan Peele’s critically acclaimed film Get Out explores the horrors of racism. The film’s plot involves the murder and appropriation of Black bodies for the benefit of wealthy, white people. After luring Black people to their country home, a white family uses hypnosis to paralyze victims and send them to the Sunken Place where screams go unheard. Black bodies are auctioned off to the highest bidder; the winner’s brain is transplanted into the prized Black body. Black victims are rendered passengers in their own bodies so that white inhabitants can obtain physical advantages and immortality.

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Persistence And Quality Of Vegetation Cover In Expired Conservation Reserve Program Fields, Mark W. Vandever, Kenneth Elgersma, Sarah K. Carter, Ai Wen, Justin L. Welty, Robert S. Arkle, Timothy J. Assal, David S. Pilliod, David M. Mushet, Rich Iovanna

Faculty Publications

For nearly 40 years, the Conservation Reserve Program (CRP) has implemented practices to reduce soil erosion, improve water quality, and provide habitat for wildlife and pollinators on highly erodible cropland in the United States. However, an approximately 40,470 ha (10 million acres) decline in enrolled CRP land over the last decade has greatly reduced the program's environmental benefits. We sought to assess the program's enduring benefits in the central and western United States by (1) determining the proportion of fields that persist in CRP cover after contracts expired, (2) identifying the type of agricultural production that CRP fields shift to …

How Perspectives On Food Safety Of Vendors And Consumers Translate Into Food-Choice Behaviors In 6 African And Asian Countries, Sejla Isanovic, Shilpa V. Constantinides, Edward A. Frongillo Ph.D., Shiva Bhandari, Sharraf Samin, Emma Kenney, Sigrid Wertheim-Heck, Stella Nordhagen, Michelle Holdsworth, Paula Dominguez-Salas, Ramya Ambikapathi, Amos Laar, Crystal L. Patil, Bharati Kulkarni, Salome A. Bukachi, Mariah Ngutu, Christine E. Blake Ph.D., Rd

Faculty Publications

Background: Consumption of unsafe foods increases morbidity and mortality and is currently an issue, particularly in low- and middle-income countries. Policy actions to ensure food safety are dominated by mitigation of biological and chemical hazards through supply-side risk management, lessening the degree to which consumer perspectives of food safety are considered. Objectives: This study aimed to provide an in-depth understanding, from vendor and consumer perspectives, of how food-safety concerns of consumers translate into their subsequent food-choice behaviors in 6 diverse low- and middle-income countries. Methods: Six Drivers of Food Choice projects (2016–2022) provided transcripts from 17 focus group discussions and …

Local Observations Of Climate Change And Impacts On Livelihoods In Kamchatka, Russia, Victoria N. Sharakhmatova, Drew Gerkey

Faculty Publications

Indigenous communities throughout the Arctic are confronting unprecedented challenges arising from anthropogenic climate change. The inextricable connections between their livelihoods and social and environmental systems, combined with a rich foundation of individual and inter-generational collective experience and knowledge, make Indigenous communities particularly adept at observing changes in climate and understanding their impacts. In this chapter, we apply the protocol from the Local Indicators of Climate Change Impacts project to document observations and impacts of climate change in Khailino, an Indigenous community on the northern part of the Kamchatka Peninsula in Northeast Siberia, Russia. We use individual interviews to identify what …

The Right To A Public Trial, Conditional Courtroom Entry And Tiers Of Constitutional Scrutiny, Stephen Smith

Faculty Publications

The constitutional test the SupremeCourt has prescribed to review courtroom closures for compliance with the Sixth Amendment’s right to a public trial is in the nature ofstrictscrutiny. The Courtrequires an “overriding interest” to justify the closure, and a narrow, minimally restrictive scope to the closure. Many lower courts have imposed a less demanding test for “partial” closures, which admit to the courtroom some, but not all, of the public. These courts require a less demanding justification before closing the courtroom to certain individuals—the justification need be only “substantial,” ratherthan “overriding.” Thisstandard is in the nature of intermediate scrutiny, as applied …

Political Advertising In Virtual Reality, Scott P. Bloomberg

Faculty Publications

This Article is about how biometric data collected through VR technologies will greatly exacerbate existing problems with political ad microtargeting. Commercially available VR devices can—and in some cases, must—be integrated with sensors that track users’ eyes, faces, hands, and bodies. Political campaigns will be able to leverage this data to target ads with extraordinary precision. Indeed, targeting ads with biometric data may well be the next step in the evolution of microtargeted political messaging—a practice that has contributed to a rise in disinformation, filter-bubbles, and privacy invasions. If this sounds like science fiction, it is closer than you may think. …

The Utility Of Participatory Family Diagramming In Qualitative Research: Multidisciplinary Applications And Practical Advice, Melissa D. Day, Tyler B. Jamison

Faculty Publications

Graphic elicitation and diagramming are useful for qualitative researchers. Diagrams of families have been used in clinical, education, and other applied settings as tools for description and analysis of family relationships since the 1950s. Despite the potential utility of family diagrams to qualitative researchers who seek to understand and theorize the complexities of family structures and relationships, participatory family diagramming, where diagrams of family relationships are co-created by researcher(s) and participant(s) and used as a foundation for interviewing, has largely remained an untapped resource. We describe how we used participatory family diagrams as design elements of multidisciplinary qualitative interview study …

Mental Health Experiences In 2021 For Adults With Disabilities Who Are Lgbt, Debra Brucker, Chris Surfus, Megan Henly

Faculty Publications

Using data from the U.S. Census Bureau’s weekly Household Pulse Survey conducted during the COVID-19 pandemic (July 21, 2021 – October 11, 2021), this study examines the prevalence of anxiety, worry, loss of interest and depression, receipt of mental health treatment, and self-reported unmet need for mental health treatment among adults with and without disabilities by lesbian, gay, bisexual, or transgender (LGBT) status. Controlling for age, educational attainment, employment, health insurance coverage, and race/ethnicity, adults with disabilities, regardless of LGBT status, had statistically significantly increased odds of anxiety, worry, loss of interest and depression, receipt of mental health treatment, and …

Human Connection: A Crucial Ingredient In Vacation Experience, Ondrej Mitas, Moji Shahvali, Peter Ward, Mat Duerden, Marcel Bastiaansen

Faculty Publications

The past decade (2012–2022) has seen a blossoming of research on tourists’ quality of life. Frameworks such as subjective well-being (Diener & Seligman, 2002), the PERMA wellbeing theory (Seligman, 2012) and eudaimonia (Filep & Deery, 2010) have been used to document the numerous positive psychological effects of tourist experiences. One of the most robust findings from this literature is that engaging in tourism triggers emotions. Ranging from the excitement of hobby-focused competitions and tours (Mitas et al., 2012a) to the relaxation of a spa (Strauss-Blasche et al., 2004a), dozens of studies have now documented salubrious emotional profiles over the course …

Challenges Of Depression: Biblical Background And Impact On The Dynamics Of Family Relationships, Anna Galeniece, Eriks Galenieks

Faculty Publications

Today we are witnessing a global epidemic of rapidly spreading mental health problems among all age groups. However, a growing mental health crisis among youth is of particular concern. According to the World Health Organization, “1 in every eight people in the world live with a mental disorder.”1 The informative data are more than impressive. For many reasons, the accurate picture of various mental health disorders is much more widespread than the latest accessible information indicates. The fundamental question revolves not only around the mental health challenges of the afflicted but especially around its practical aspect: How can ordinary people …

Faux Advocacy In Amicus Practice, James G. Dwyer

Faculty Publications

Amicus brief filing has reached “avalanche” volume. Supreme Court Justices and lower court judges look to these briefs particularly for non-case-specific factual information––“legislative facts”—relevant to a case. This Article calls attention to a recurrent yet unrecognized problem with amicus filings offering up legislative facts in the many cases centrally involving the most vulnerable members of society—namely, non-autonomous persons, including both adults incapacitated by mental illness, intellectual disability, or other condition, and children. Some amici present themselves as advocates for such persons but use the amicus platform to serve other constituencies and causes, making false or misleading factual presentations about the …

How Certain Robot Attributes Influence Human-To-Robot Social And Emotional Bonds, James Gaskin, P. Thomas Fife, Warren Rosengren

Faculty Publications

A growing population of humans are feeling lonely and isolated and may therefore benefit from social and emotional companionship. However, other humans cannot always be available to fulfill these needs, and such in-need individuals often cannot care for pets. Therefore, we explore how robot companions may be designed to facilitate bonds with humans. Our preliminary examination of 115 participants in a scenario based quasi-experimental study suggests that humans are more likely to develop social and emotional bonds with robots when those robots are good at communicating and conveying emotions. However, robots’ anthropomorphic attributes and responsiveness to external cues were found …

Ecological-Niche Modeling Reveals Current Opportunities For Agave Dryland Farming In Sonora, Mexico And Arizona, Usa, Hector G. Ortiz-Cano, Robert Hadfield, Teresa Gomez, Kevin Hultine, Ricardo Mata-Gonzalez, Steven L. Petersen, Neil C. Hansen, Michael T. Searcy, Jason Stetler, Teodoro Cervantes-Mendivil, David Burchfield, Pilman Park, J. Ryan Stewart

Faculty Publications

For centuries, humans occupying arid regions of North America have maintained an intricate relationship with Agave (Agavoideae, Asparagaceae). Today Agave cultivation, primarily for beverage production, provides an economic engine for rural communities throughout Mexico. Among known dryland-farming methods, the use of rock piles and cattle-grazed areas stand out as promising approaches for Agave cultivation. Identifying new cultivation areas to apply these approaches in Arizona, USA and Sonora, Mexico warrants a geographic assessment of areas outside the known ranges of rock piles and grasslands. The objective of this study was to predict areas for dryland-farming of Agave and develop models to …

Survival In Common Snapping Turtles, Chelydra Serpentina (Testudines: Chelydridae), In Western Nebraska, John B. Iverson, Geoffrey R. Smith

Faculty Publications

Annual estimates of survival for Common Snapping Turtles (Chelydra serpentina) in western Nebraska USA were generated from mark-recapture data from nesting females encountered in 2005–2017. Our population models suggested no annual variation in either adult annual survival (0.947 ± 0.017 SE) or annual capture probability (0.294 ± 0.027 SE). However, there was a tendency toward higher survival in larger females. High annual survival (e.g. > 90%) characterises populations of Chelydra from Ontario to Texas.

The Gender Of Gideon, Kathryn A. Sabbeth, Jessica Steinberg

Faculty Publications

This Article makes a simple claim that has been overlooked for decades and yet has enormous theoretical and practical significance: the constitutional guarantee of counsel adopted by the U.S. Supreme Court in Gideon v. Wainwright accrues largely to the benefit of men. In this Article, we present original data analysis demonstrating that millions of women face compulsory and highly punitive encounters with the justice system but do so largely in the civil courts, where no right to counsel attaches. The demographic picture that emerges is one in which the right to counsel skews heavily against women’s interests. As this Article …

The Nightmare Of Dream Advertising, Dustin Marlan

Faculty Publications

Advertisers are attempting to market to us while we dream. This is not science fiction, but rather a troubling new reality. Using a technique dubbed “targeted dream incubation” (TDI), companies have begun inserting commercial messages into people’s dreams. Roughly, TDI works by: (1) creating an association during waking life using sensory cues (for example, a pairing of sounds, visuals, or scents); and (2) as the subject is drifting off to sleep, the association is again introduced with the goal of triggering related dreams with related subject matter. Based on a 2021 American Marketing Association survey, 77 percent of 400 companies …

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 …

Sociophonetics And Dialectology, Dominic Watt, Margaret E. L. Renwick, Joseph A. Stanley

Faculty Publications

In this chapter we explore how the investigation of phonetic detail in speech seen through a sociolinguistic lens can inform and enhance our understanding of dialectal variation in languages. We begin by examining how sociophonetics can be considered an offshoot of dialectology, later to mature into a free- standing discipline during the late twentieth century. We next discuss the reconvergence of sociophonetics and dialectology as it became clearer that the two approaches to the study of language variation are, in combination, greater than the sum of their parts, even if their agendas may place different emphases on what should be …