Digital Commons Network^™

Rise Of The Metaverse's Immersive Virtual Reality Malware And The Man-In-The-Room Attack & Defenses, Martin Vondráček, Ibrahim Baggili, Peter Casey, Mehdi Mekni

Faculty Publications

The allure of the metaverse along with Virtual Reality (VR) technologies and speed at which they are deployed may shift focus away from security and privacy fundamentals. In this work we employ classic exploitation techniques against cutting edge devices to obtain equally novel results. The unique features of the Virtual Reality landscape set the stage for our primary account of a new attack, the Man-in-the-Room (MitR). This attack, realized from a vulnerable social networking application led to both worming and botnet capabilities being adapted for VR with potential critical impacts affecting millions of users. Our work improves the state-of-the-art in …

Covid-19 Lockdown: Impact On College Students’ Lives, Wendy C. Birmingham, Lori L. Wadsworth, Jane H. Lassetter

Faculty Publications

Objective: In light of COVID-19, leaders issued stay-at-home orders, including closure of higher-education schools. Most students left campus, likely impacting their employment and social network. Leaders are making decisions about opening universities and modality of instruction. Understanding students' psychological, physiological, academic, and financial responses to the shut-down and reopening of campuses can help leaders make informed decisions. Participants: 654 students from a large western university enrolled during the pandemic shutdown. Methods: Students were invited via email to complete an online survey. Results: Students reported stress, depression, loneliness, lack of motivation, difficulty focusing on schoolwork, restless sleep, appetite changes, job loss …

Trading Nonenforcement, Ryan Snyder

Faculty Publications

In recent years, federal agencies have increasingly used nonenforcement as a bargaining chip—promising not to enforce a legal requirement in exchange for a regulated party’s promise to do something else that the law doesn’t require. This Article takes an in-depth look at how these nonenforcement trades work, why agencies and regulated parties make them, and the effects they have on social policy. The Article argues that these trades pose serious risks: Agencies often use trading to evade procedural and substantive limits on their power. The trades themselves present fairness problems, both because they tend to reward large, well-connected firms and …

Health Of Nations: Preventing A Post-Pandemic Emerging Markets Debt Crisis, Lev E. Breydo

Faculty Publications

Sixty percent of low-income countries are currently at “high-risk” of insolvency, necessitating debt relief, according to the International Monetary Fund. The enormity of the problem cannot be overstated; a prospective sovereign debt crisis and economic collapse threatens hundreds of millions of people around the world.

At the same time, the tools to address these challenges are wholly inadequate. Typically, debt reduction is effectuated through statutory systems; sovereign debt is a critical exception, as there is no bankruptcy court for countries. Historically, this void was filled through a complex architecture based on custom, ‘soft law,’ and contractual mechanisms. However, that construct …

Menstrual Justice In Theoretical Context, Vivian E. Hamilton

Faculty Publications

This Essay reviews and places into theoretical contexts Bridget Crawford and Emily Waldman’s invaluable book Menstruation Matters. Although the authors themselves do not explicitly label the theoretical approach that undergirds their work, much of Menstruation Matters: Challenging the Law’s Silence on Periods falls within the liberal feminist legal tradition typical of post-civil rights second-wave feminism. Their work also embodies aspects of critical feminist approaches to law. Crawford & Waldman expose the discriminatory effects of facially neutral laws, the limits of formal equality, and the pitfalls of essentializing or making universal claims about categories of individuals—including women and menstruators. In …

Legal Order At The Border, Evan J. Criddle

Faculty Publications

For generations, the United States has grappled with high levels of illegal immigration across the U.S.-Mexico border. This Article offers a novel theoretical framework to explain why legal order remains elusive at the border. Drawing inspiration from Lon Fuller’s “interactional view of law,” I argue that immigration law cannot attract compliance unless it is general, public, prospective, clear, consistent, and stable; obedience with its rules is feasible; and the law’s enforcement is congruent with the rules as enacted. The flagrant violation of any one of these principles could frustrate the development of a functional legal order. Remarkably, U.S. immigration law …

Adoption Of Model-Based Systems Engineering In Traditional Dod Systems, Patrick E. Assef, Jeremy R. Geiger

Faculty Publications

The transition to digital engineering has become a major objective within the Department of Defense (DoD). One such method is Model-Based Systems Engineering (MBSE), or the use of models to facilitate systems engineering. Most new DoD programs are being built from the ground up using MBSE. However, the question of whether MBSE should be incorporated into existing systems still lingers. Little research currently exists on the efforts required to transition existing systems to MBSE. In this article, the authors measure the effort required to transition an existing system of systems (SoS), which primarily relied on document-centric methods, to MBSE. Time …

Large Eddy Simulation For Empirical Modeling Of The Wake Of Three Urban Air Mobility Vehicles, Denis-Gabriel Caprace, Andrew Ning

Faculty Publications

Recent advances in urban air mobility have driven the development of many new VTOL concepts. These vehicles often feature original designs departing from the conventional helicopter configuration. Due to their novelty, the characteristics of the super-vortices forming in the wake of such aircraft are unknown. However, these vortices may endanger any other vehicle evolving in their close proximity, owing to potentially large induced velocities. Therefore, improved knowledge about the wakes of VTOL vehicles is needed to guarantee safe urban air mobility operations. In this work, we study the wake of three VTOL aircraft in cruise by means of large eddy …

A Survey Of South Carolina Pharmacists' Readiness To Prescribe Human Immunodeficiency Virus Pre-Exposure Prophylaxis, Charles M. Burns, Kyle Endres, Caroline Derrick, Alexandra Cooper, Patricia Fabel, Nwora Lance Okeke, Divya Ahuja, Amy Corneli, Mehri S. Mckellar

Faculty Publications

Introduction: Human immunodeficiency virus (HIV) pre-exposure prophylaxis (PrEP) is largely underutilized in the Southern United States. Given their community presence, pharmacists are well positioned to provide PrEP within rural, Southern regions. However, pharmacists' readiness to prescribe PrEP in these communities remains unknown. Objective: To determine the perceived feasibility and acceptability of prescribing PrEP by pharmacists in South Carolina (SC). Methods: We distributed a 43-question online descriptive survey through the University of South Carolina Kennedy Pharmacy Innovation Center's listserv of licensed SC pharmacists. We assessed pharmacists' comfort, knowledge, and readiness to provide PrEP. Results: A total of 150 pharmacists responded to …

Utilizing The System Engineering Trade Study Analysis Method To Analyze Patient Aeromedical Evacuation, Sara Shaghaghi, Jeremy M. Slagley, Michael E. Miller, Gaiven Varshney

Faculty Publications

The US Air Force has gone through many aeromedical patient isolation transport system designs. The first designs were developed in response to the Ebola outbreak in 2014 and, more recently, the COVID-19 pandemic. The trade study analysis part of the system engineering design method was used to analyze the historic and current aeromedical patient contamination control transport systems. A trade study is a process that evaluates alternatives based upon various “-ilities”, such as reconfigurability, flexibility, durability, cost, and more, and performs a systematic analysis to aid designers in producing a ‘good’ design alternative given the large set of possible solutions. …

Retraction, N. Kinoshita, M. Paul, Y. Kashiv, P. Collon, C. M. Deibel, B. Digiovine, J. P. Greene, C. L. Jiang, S. T. Marley, R. C. Pardo, K. E. Rehm, D. Robertson, R. Scott, C. Schmitt, X. D. Tang, R. Vondrasek, A. Yokoyama

Faculty Publications

No abstract provided.

Traffic Lights For Catalysis: Stimuli-Responsive Molecular And Extended Catalytic Systems, Grace C. Thaggard, Johanna Haimeri, Roland A. Fischer Prof. Dr., Kyoung Chul Park, Natalia B. Shustova Prof. Dr.

Faculty Publications

The advances made in the field of stimuli-responsive catalysis during the last five years with a focus on the novel recently-emerged directions and applications have been surveyed. Metal-free catalysts and organometallic complexes, as well as biomimetic systems and extended structures, which display switchable catalytic activity for a variety of organic transformations, are discussed. Light-activated systems comprised of photochromic molecules capable of modulating reaction rate, yield, or enantioselectivity based on geometric and electronic changes associated with photoisomerization are the focus of the detailed discussion. Alternative stimuli, including pH and temperature, which could be applied either alone or in combination with light, …

A 33 Year Old Native Seed System In The Upper Midwest: Public Policy And Investment Contribute To A Diverse Commercial Native Seed Market [Slideshow], Laura L. Jackson, Kristine Nemec, Laura Fischer Walter

Faculty Publications

PURPOSE AND HISTORY

The Tallgrass Prairie Center (TPC) Plant Materials Program at the University of Northern Iowa (UNI) aims to increase the availability and affordability of regionally appropriate, Source Identified (SI) native seed for roadsides and other restorations. We serve a linking role within the native seed system in our region by:

1) developing SI foundation stock seed that is regionally adapted and genetically diverse for the native seed industry.

2) fostering communication across the native seed supply chain.

A plant materials program, originally named the Iowa Ecotype Project (IEP), was initiated in 1990 at UNI, in partnership with several …

A 33 Year Old Native Seed System In The Upper Midwest: The Evolving Role Of Stock Seed Production And Stakeholder Communication [Poster], Laura Fischer Walter, Laura L. Jackson

Faculty Publications

PURPOSE AND HISTORY

The Tallgrass Prairie Center (TPC) Plant Materials Program at the University of Northern Iowa (UNI) aims to increase the availability and affordability of regionally appropriate, Source Identified (SI) native seed for roadsides and other restorations. We serve a linking role within the native seed system in our region by:

1) developing SI foundation stock seed that is regionally adapted and genetically diverse for the native seed industry.

2) fostering communication across the native seed supply chain.

A plant materials program, originally named the Iowa Ecotype Project (IEP), was initiated in 1990 at UNI, in partnership with several …

Toward A Simulation Model Complexity Measure, J. Scott Thompson, Douglas D. Hodson, Michael R. Grimaila, Nicholas Hanlon, Richard Dill

Faculty Publications

Is it possible to develop a meaningful measure for the complexity of a simulation model? Algorithmic information theory provides concepts that have been applied in other areas of research for the practical measurement of object complexity. This article offers an overview of the complexity from a variety of perspectives and provides a body of knowledge with respect to the complexity of simulation models. The key terms model detail, resolution, and scope are defined. An important concept from algorithmic information theory, Kolmogorov complexity, and an application of this concept, normalized compression distance, are used to indicate the possibility of measuring changes …

Simulations Of Morphology Control Of Self-Assembled Amphiphilic Surfactants, Qinyu Zhu, Douglas R. Tree

Faculty Publications

One of the grand challenges of amphiphilic self-assembly is the design of ordered structures whose morphology or shape can be explicitly and dynamically controlled by adjusting the properties of the amphiphiles or their surroundings. Such a capacity would enable researchers to create synthetic systems with functionality that meets or exceeds biological cells, and provide a robust platform for a broad range of engineering applications such as artificial tissues, drug delivery, and separation membranes. Despite significant progress, important fundamental questions remain unanswered, due in part to the limited resolution and the restricted parameter spaces that are readily accessible in experiments. Computational …

Simulations Of Morphology Control Of Self-Assembled Amphiphilic Surfactants, Qinyu Zhu, Douglas R. Tree

Faculty Publications

One of the grand challenges of amphiphilic self-assembly is the design of ordered structures whose morphology or shape can be explicitly and dynamically controlled by adjusting the properties of the amphiphiles or their surroundings. Such a capacity would enable researchers to create synthetic systems with functionality that meets or exceeds biological cells, and provide a robust platform for a broad range of engineering applications such as artificial tissues, drug delivery, and separation membranes. Despite significant progress, important fundamental questions remain unanswered, due in part to the limited resolution and the restricted parameter spaces that are readily accessible in experiments. Computational …

Control Education For Societal-Scale Challenges: A Community Roadmap, John Anthony Rossiter, Christos G. Cassandras, João Hespanha, Sebastian Dormido, Luis De La Torre, Gireeja Ranade, Antonio Visioli, John Hedengren, Richard M. Murray, Panos Antsaklis, Francoise Lamnabhi-Lagarrigue, Thomas Parisini

Faculty Publications

This article focuses on extending, disseminating and interpreting the findings of an IEEE Control Systems Society working group looking at the role of control theory and engineering in solving some of the many current and future societal challenges. The findings are interpreted in a manner designed to give focus and direction to both future education and research work in the general control theory and engineering arena, interpreted in the broadest sense. The paper is intended to promote discussion in the community and also provide a useful starting point for colleagues wishing to re-imagine the design and delivery of control-related topics …

Data Literacy In The Social Sciences: Findings From A Local Study On Teaching With Quantitative Data In Undergraduate Courses, Patricia B. Condon, Eleta Exline, Louise Buckley

Faculty Publications

Objective – The University of New Hampshire (UNH) Library conducted an exploratory study of the pedagogical practices of social science instructors at UNH who teach using quantitative data in undergraduate courses. This study is connected to a suite of parallel studies at other higher education institutions that was designed and coordinated by Ithaka S+R.

The four aims of this study were to explore the ways in which instructors teach and engage undergraduates in the social sciences using quantitative data; understand the support needs of these instructors; develop actionable recommendations for campus stakeholders; and identify opportunities for the development of resources, …

Collection Due Process At Twenty-Five: A Still Important And Needed Check On Irs Collection, Leslie Book

Faculty Publications

No abstract provided.

Student Preferences For Active Learning And Their Beliefs, Experiences, And Knowledge, Tammy Shilling, Jerome Thayer, Anneris Coria-Navia, Heather Ferguson

Faculty Publications

Active teaching methods are believed to facilitate higher-order thinking skills and prepare allied health students for independent clinical decision-making. This quantitative, correlational study aimed to explain the relationships between student preferences for active over traditional methods and their beliefs, the frequency and positiveness of their experiences, and the extent of knowledge they have received regarding active and traditional teaching methods. Two hundred and thirty students completed a 53-item online survey. Students were enrolled in a Doctor of Physical Therapy, Masters in Speech-language Pathology, or Bachelor of Science Nursing program in one of seventeen participating institutions across a ten-state Midwest region. …

A Diversity, Equity, And Inclusion Audit Of The American Families Of Faith Project: Exploring Lifespan Spiritual Development In Religiously And Racially Diverse Families, David C. Dollahite, Justin J. Hendricks, Loren D. Marks

Faculty Publications

Social science and religious studies scholars should endeavor to broaden theories, methods, and samples to be more inclusive. Therefore, we have conducted an “equity audit” of the American Families of Faith (AFF) project. We evaluated the diversity, equity, and inclusion of the AFF project’s (a) research team, (b) products, and (c) samples. We then discuss the reasoning behind the decisions that resulted in the existing strengths and limitations of the project, the fruits of this and previous evaluations (including a presentation of some narrative accounts from parents and youths across several religious-ethnic communities across the US), opportunities for growth, and …

Large Deflection Analysis Of General Beams In Contact-Aided Compliant Mechanisms Using Chained Pseudo-Rigid-Body Model, Mohui Jin, Collin Ynchausti, Xianmin Zhang, Zhou Yang, Benliang Zhu, Larry L. Howell

Faculty Publications

The nonlinear analysis and design of contact-aided compliant mechanisms (CCMs) are challenging. This paper presents a nonlinear method for analyzing the deformation of general beams that contact rigid surfaces in CCMs. The large deflection of the general beam is modeled by using the chained pseudo-rigid-body model. A geometry constraint from the contact surface is developed to constrain the beam’s deformed configuration. The contact analysis problem is formulated based on the principle of minimum potential energy and solved using an optimization algorithm. Besides, a novel technique based on the principle of work and energy is proposed calculate the reaction force/moment of …

Practices And Perceptions Of Family-Centered Care: A Cross-Sectional Survey Of Secondary School Athletic Trainers, Zachary K. Winkelmann, Nancy A. Uriegas, James M. Mensch, Conner E. Montgomery, Toni M. Torres-Mcgehee

Faculty Publications

Family-centered care (FCC) includes collaboration between families and healthcare providers, the creation of flexible policies, and the family taking an active role in the delivery of care. Secondary school athletic trainers provide care for underage patients in school-based health systems, making them responsible for maintaining communication with parents, guardians, and/or caregivers. This cross-sectional survey investigated the extent to which athletic trainers (n = 205) include aspects of FCC in their daily secondary school clinical practice (current practices = CP) and whether they believe that aspect of care is necessary for FCC to be provided in athletic training (perceived necessary = …

Deployable Convex Generalized Cylindrical Surfaces Using Torsional Joints, Todd G. Nelson, Jared T. Burton, Curtis G. Nelson, Luis M. Baldelomar Pinto, Zhicheng Deng, Larry L. Howell

Faculty Publications

The ability to deploy a planar surface to a desired convex profile with a simple actuation can enhance foldable or morphing airfoils, deployable antennae and reflectors, and other applications where a specific profile geometry is desired from a planar sheet. A model using a system of rigid links joined by torsional springs of tailorable stiffness is employed to create an approximate curved surface when two opposing tip loads are applied. A system of equations describing the shape of the surface during deployment is developed. The physical implementation of the model uses compliant torsion bars as the torsion springs. A multidimensional …

A Cprbm-Based Method For Large-Deflection Analysis Of Contact-Aided Compliant Mechanisms Considering Beam-To-Beam Contacts, Mohui Jin, Benliang Zhu, Jiasi Mo, Zhou Yang, Xianmin Zhang, Larry L. Howell

Faculty Publications

Contact-aided compliant mechanisms (CCMs) utilize contact to achieve enhanced functionality. The contact phenomenon of CCMs increases the difficulties of their analysis and design, especially when they exhibit beam-to-beam contact. Considering the particularity of CCMs analysis, which is more about the mechanisms’ deformation, this paper presents a numerical method to analyze the large deflection and stress of the CCMs considering beam-to-beam contacts. Based on our previous work on beam-to-rigid contact, the large deformation of general beams in CCMs is modeled by using the chained pseudo-rigid-body model (CPRBM). An approximation based on the geometric information of CPRBM is proposed in this paper …

“Are These People Real?”: Designing And Playtesting An Alternative Reality, Educational Simulation, Jason K. Mcdonald, Jonathan Balzotti, Melissa Franklin, Jessica Haws, Jamin Rowan

Faculty Publications

In this design case, we report our design and playtest of a form of alternative reality, educational simulation that we call a playable case study (PCS). One of the features that make our simulations unique is how they are designed to implement a principle called This Is Not a Game, or TINAG, meaning that the affordances we design into the simulation suggest to students that the experience they are having is real, in contrast to the way the artificial nature of the experience is highlighted in many computer games. In this case, we describe some challenges we encountered in designing …

Autonomous Single-Molecule Manipulation Based On Reinforcement Learning, Bernhard Ramsauer, Grant J. Simpson, Johannes J. Cartus, Andreas Jeindl, Victor García-López, James M. Tour, Leonhard Grill, Oliver T. Hofmann

Faculty Publications

Building nanostructures one-by-one requires precise control of single molecules over many manipulation steps. The ideal scenario for machine learning algorithms is complex, repetitive, and time-consuming. Here, we show a reinforcement learning algorithm that learns how to control a single dipolar molecule in the electric field of a scanning tunneling microscope. Using about 2250 iterations to train, the algorithm learned to manipulate the molecule toward specific positions on the surface. Simultaneously, it generates physical insights into the movement as well as orientation of the molecule, based on the position where the electric field is applied relative to the molecule. This reveals …

Attochemistry Regulation Of Charge Migration, Aderonke S. Folorunso, François Mauger, Kyle A. Hamer, Denawakage D. Jayasinghe, Imam S. Wahyutama, Justin R. Ragains, Robert R. Jones, Louis F. Dimauro, Mette B. Gaarde, Kenneth J. Schafer, Kenneth Lopata

Faculty Publications

Charge migration (CM) is a coherent attosecond process that involves the movement of localized holes across a molecule. To determine the relationship between a molecule's structure and the CM dynamics it exhibits, we perform systematic studies of para-functionalized bromobenzene molecules (X-C6H4-R) using real-time time-dependent density functional theory. We initiate valence-electron dynamics by emulating rapid strong-field ionization leading to a localized hole on the bromine atom. The resulting CM, which takes on the order of 1 fs, occurs via an X localized → C6H4delocalized → R localized mechanism. Interestingly, the hole contrast on the acceptor functional group increases with increasing electron-donating …

What Are The Most Effective Proxies In Identifying Storm-Surge Deposits In Paleotempestology? A Quantitative Evaluation From The Sand-Limited, Peat-Dominated Environment Of The Florida Coastal Everglades, Qiang Yao, Kam Biu Liu, Zhenqing Zhang, Erika Rodrigues, Marcelo Cohen, Kanchan Maiti, Yang Yang

Faculty Publications

Although many studies have attempted to reconstruct millennial-scale hurricane patterns using various proxy-based methods, it is still unclear what the most effective proxies are to identify storm surge deposits in different environmental settings. This study quantitatively compares the application of grain-size, loss-on-ignition, stable isotopes, X-ray fluorescence, and palynological proxies in paleotempestology from an organic-rich environment in the Florida Everglades. The nonparametric tests indicate that only 9 among the 27 parameters (mean diameter, %water, %organic, %carbonate, Ca, Sr, Ca/Ti, Cl/Br, and marine microfossils) exhibited significant differences between storm-surge and in situ deposits. The principal component analysis shows that five marine indicators …