Digital Commons Network^™

Best-Practices For Trauma-Informed Preaching, Rodney A. Palmer

Faculty Publications

No abstract provided.

Reporting Of Concussion Symptoms By A Nationwide Survey Of United States Parents Of Middle School Children, Zachary Y. Kerr, Brittany M. Ingram, Christine E. Callahan, Aliza K. Nedimyer, Avinash Chandran, Melissa K. Kossman, Julia Hoang, Paula Gildner, Johna K. Register-Mihalik

Faculty Publications

This cross-sectional study assessed concussion symptom knowledge of parents of middle school (MS) children (aged 10–15 years) through a free-response item that solicited concussion symptoms and compared findings to a pre-validated scale-based measure. A self-administered online questionnaire was sent to a panel of randomly selected United States residents who were recruited by a third-party company, aged ≥ 18 years, and identified as parents of MS children. Via a free-response item, parents listed what they believed were concussion symptoms. Multiple sections later, parents identified potential concussion symptoms via a scale measure, which featured 25 items (22 actual symptoms, three distractor symptoms) …

Event-Triggered Control Using A Positive Systems Approach, Frédéric Mazenc, Michael Malisoff, Corina Barbalata, Zhong Ping Jiang

Faculty Publications

We provide a new event-triggered control strategy that relies on the notion of positive systems. Our results cover output feedback, and robustness with respect to uncertain dynamics. Our proofs are based on interval observers. Our examples show potential advantages of our approach over earlier event-triggered methods.

Virtual Traffic Signals: Safe, Rapid, Efficient And Autonomous Driving Without Traffic Control, Zhao Zhang, Feng Liu, Brian Wolshon, Yu Sheng

Faculty Publications

Connected and autonomous vehicles (CAV) will open the future to vast possibilities in transportation, most of which have yet to be imagined. As these new technologies emerge, they also have the potential to render many of today's most common transportation control methods irrelevant. In this paper, concepts of connected and autonomous are applied to coordinate and synchronize the arrival and departure of vehicles at intersections; effectively ending the need for traffic signals. Under a set of 'autonomous rules of operation', vehicles can be kept in near-continuous motion while also maintaining safe separation, creating a system of 'virtual traffic signal' (VTS). …

Blockchain Applications: Sme Interviews And Financial & Banking Use Case, Van Tran, Matt Barton, Dan Bumblauskas, Arti Mann

Faculty Publications

Blockchain is an emerging technology that is believed to be “the next internet.” In this paper, we try to answer the questions- What is blockchain? How does blockchain work? and what are its uses across different industries? We also explore blockchain from a theoretical perspective and discusses its various applications. We analyze the drawbacks of this technology and also explore the uses of this technology in banking security and risk management.

Leading Through Paradox In A Covid-19 World: Human Resources Comes Of Age, David G. Collings, Anthony J. Nyberg, Patrick M. Wright, John Mcmackin

Faculty Publications

The impact of the coronavirus disease (COVID-19) pandemic is unprecedented. At an organisational level, the crisis has been hugely disruptive, complex and fraught with ambiguity for leaders. The crisis is fundamentally a human one, making human resource (HR) leaders central in enabling organisations to manage through and ultimately exit the crisis successfully. We apply a paradox lens to understand the HR leadership challenges posed by the COVID-19 crisis. We argue that how the HR function responds to the challenges of the crisis and its role in mapping the exit route from the crisis are likely to shape the trajectory of …

Low Light Intensity Delays Vegetative Phase Change, Mingli Xu, Tieqiang Hu, R Scott Poethig

Faculty Publications

Plants that develop under low light (LL) intensity often display a phenotype known as the “shade tolerance syndrome (STS)”. This syndrome is similar to the phenotype of plants in the juvenile phase of shoot development, but the basis for this similarity is unknown. We tested the hypothesis that the STS is regulated by the same mechanism that regulates the juvenile vegetative phase by examining the effect of LL on rosette development in Arabidopsis (Arabidopsis thaliana). We found that LL prolonged the juvenile vegetative phase and that this was associated with an increase in the expression of the master …

Towards Herd Humanity: Covid-19 Vaccination Reluctance In Bangladesh, Mohammad Ali, Dan Bumblauskas

Faculty Publications

Researchers have considered different types of vaccines and monitored their efficacy during crisis, but few have considered the readiness of society to inoculate against COVID-19. Among mass populace areas, there remains reluctance although the endorsed vaccines have generally been shown to be highly effective. Bangladesh is aiming to move forward to actualization of an immunization rate to reach herd immunity using a diverse methodology and program to overcome vaccine reluctance. This reluctance to receive the vaccine is potentially leading to a worldwide risk of not reaching herd immunity in a timely fashion. The well-being of numerous nations is dependent on …

An Approach To Preventing Conflict: Unpacking The Standing Neutral, Dan Bumblauskas,, Kate Vitasek, Jim Groton

Faculty Publications

Contractual relationships are vulnerable to the damage caused by friction in relationships, particularly when this turns into a formal dispute. If negotiations fail, the next step is calling in a mediator, and perhaps ending up in arbitration or the court system. This paper argues for the proactive use of a “Standing Neutral” – a trusted, independent expert advisor (or a panel of three advisors) chosen by the contracting parties to help during their contractual relationship. Rather than being reactive to disputes, an organization can be proactive by a standing neutral as chosen by the contracting parties to help during their …

A Work/Life Teeter Totter: Using Demand Based Principles For Spiritual Operations Management, Dan Bumblauskas, Paul Bumblauskas

Faculty Publications

The purpose of this article is to detail how spirituality is a critical component to work/life balance and how individual and organizational spirituality impact operations management. Balancing key areas of work and professional life become an important part of creating happy and mutually satisfying relationships. We have identified six critical elements of life balance that lead towards optimized productivity (in no order of significance): Career, Family, Community, Spiritual, Health (includes sleep), Pleasure. Spirituality is one of the six components that must be defined, with a corresponding work and personal development plan, at an individual and organizational and operations management level.

Development And Validation Of Subject Librarian Consultation Competencies, Holt Zaugg

Faculty Publications

This study seeks to identify and validate competencies which subject librarians may use in their consultations with students. For the purposes of this study, subject librarians are defined as any library employee who has one-on-one consultations with students. It may include liaison librarians, curators, and others within an academic library. Using a literature review, we identified 22 competencies that may be used to guide subject librarian consultations. Validation efforts included reviews and ratings by subject librarians and students. The article also indicates limitations, future steps, and potential uses of these competencies.

Sexual Dimorphism In Titi Monkeys’ Digit (2d:4d) Ratio Is Associated With Maternal Urinary Sex Hormones During Pregnancy, Alexander Baxter, Elizabeth K. Wood, Lynea R. Witczak, Karen L. Bales, James Dee Higley

Faculty Publications

The second-to-fourth digit (2D:4D) ratio is a sexually-dimorphic biomarker for prenatal sex hormone exposure. We investigated whether titi monkeys (Plecturocebus cupreus) exhibit sexually-dimorphic 2D:4D ratio, and whether variation in 2D:4D ratio correlates with maternal testosterone and estrogen levels during early pregnancy. Subjects were 61 adult titi monkeys (32 males, 29 females). For 26 subjects, maternal urine samples were collected approximately 15–20 weeks before birth and assayed for testosterone and estrone conjugate (E1C). Titi monkeys exhibited a human-like pattern of sexual dimorphism in right-hand 2D:4D ratio, with females exhibiting higher 2D:4D ratio than males (β = −0.29, p = .023). For …

Very Young Child Survivors’ Perceptions Of Their Father’S Suicide: Exploring Bibliotherapy As Postvention Support, Cortland L. Watson, Elizabeth Cutrer, Melissa A. Heath, Erica E. Miller, Terrell A. Young, Suzanne Wilson

Faculty Publications

Each year in the United States, 7000 to 30,000 children experience their parent’s suicide. Due to the stigma associated with suicide, feelings of guilt, and intense grief, surviving family members avoid talking about suicide. Over time, children struggle with confusion and intense emotions associated with their parent’s suicide. In this study, seven adults, who reported being younger than six years old at the time of their father’s suicide, participated in individual semi-structured interviews. Participants’ responses highlight the challenges that young children face due to limited memories of their deceased parent. Interviews concluded with an opportunity for participants to review and …

A Comparison Of Bayesian Spatial Models For Hiv Mapping In South Africa, Kassahun Abere Ayalew, Samuel Manda, Bo Cai Ph.D.

Faculty Publications

Despite making significant progress in tackling its HIV epidemic, South Africa, with 7.7 million people living with HIV, still has the biggest HIV epidemic in the world. The Government, in collaboration with developmental partners and agencies, has been strengthening its responses to the HIV epidemic to better target the delivery of HIV care, treatment strategies and prevention services. Population-based household HIV surveys have, over time, contributed to the country’s efforts in monitoring and understanding the magnitude and heterogeneity of the HIV epidemic. Local-level monitoring of progress made against HIV and AIDS is increasingly needed for decision making. Previous studies have …

The Fmr1 Premutation Phenotype And Mother-Youth Synchrony In Fragile X Syndrome, Carly Moser, Laura Mattie, Leonard Abbeduto, Jessica Klusek

Faculty Publications

A subset of mothers who carry the FMR1 premutation may express a unique phenotype. The relationship between the FMR1 phenotype and mother-child interaction in families with fragile X-associated disorders has not been well characterized, despite the importance of high-quality mother-child interaction for child development. This study examined the association between the FMR1 phenotype and the quality of interactions between mothers and their adolescent/young adult sons with fragile X syndrome. Mother-youth synchrony was coded from a dyadic interaction. Maternal anxiety and depression symptoms, executive function deficits, and pragmatic language difficulties were evaluated. Results indicated that pragmatic language was associated with mother-youth …

Deciding For Others, Thomas Simmons

Faculty Publications

No abstract provided.

Diverse Sediment Microbiota Shape Methane Emission Temperature Sensitivity In Arctic Lakes, Joanne B. Emerson, Ruth Varner, Martin Wik, Donovan H. Parks, Rebecca B. Neumann, Joel E. Johnson, Caitlin M. Singleton, Ben J. Woodcroft, Rodney Tollerson Ii, Akosua Owusu-Dommey, Morgan Binder, Nancy L. Freitas, Patrick M. Crill, Scott R. Saleska, Gene W. Tyson, Virginia I. Rich

Faculty Publications

Northern post-glacial lakes are significant, increasing sources of atmospheric carbon through ebullition (bubbling) of microbially-produced methane (CH₄) from sediments. Ebullitive CH₄ flux correlates strongly with temperature, reflecting that solar radiation drives emissions. However, here we show that the slope of the temperature-CH₄ flux relationship differs spatially across two post-glacial lakes in Sweden. We compared these CH₄ emission patterns with sediment microbial (metagenomic and amplicon), isotopic, and geochemical data. The temperature-associated increase in CH₄ emissions was greater in lake middles—where methanogens were more abundant—than edges, and sediment communities were distinct between edges and middles. Microbial …

A Contextualization Of Editorial Misconduct In The Library And Information Science Academic Information Ecosystem, Lucy Santos Green, Melissa P. Johnston

Faculty Publications

In the last decade, one of the most effective tools applied in combating the erosion of public trust in academic research has been an increased level of transparency in the peer review and editorial process. Publicly available publication ethics guidelines and policies are vital in creating a transparent process that prevents unethical research, publication misconduct, manipulation of the communication of research to practitioners, and the erosion of public trust. This study investigated how these unethical practices, specifically those coded as editorial misconduct, bring the authenticity and integrity of the library and information science academic research digital record into question. Employing …

Parameter Estimation And Application Of Anisotropic Yield Criteria For Cylindrical Aluminum Extrusions: Theoretical Developments And Stereodic Measurements, Farzana Yasmeen, Michael A. Sutton, Xiaomin Deng, Megan Ryan, Anthony P. Reynolds

Faculty Publications

Theoretical and experimental studies are presented to characterize the anisotropic plastic response under torsion loading of two nominally identical aluminum Al6061-T6 extruded round bars. Theoretical models are developed using isotropic (Von Mises 1913) and anisotropic (Barlat 1991) yield criteria, along with isotropic strain hardening formulae, to model post-yield behavior under simple torsion loading. For the case of simple shear loading, incremental plasticity theory is used to determine the theoretical elastic, plastic, and total shear strains. A set of experiments are performed to calibrate Barlat’s 1991 yield function. Several specimens are extracted at different orientations to the longitudinal direction of each …

Smoking Behaviors, Mental Health, And Risk Perceptions During The Beginning Of The Covid-19 Pandemic Among Mexican Adult Smokers, Emily E. Loud, Katia Gallegos-Carrillo, Inti Barrientos-Gutiérrez, Edna Arillo-Santillán, Victoria C. Lambert, Luis Zavala-Arciniega, Jim F. Thrasher Ph.D., Ma, Ms

Faculty Publications

Mexico is one of the countries most affected by COVID-19. Studies have found that smoking behaviors have been impacted by the pandemic as well; however, results have varied across studies, and it remains unclear what is causing the changes. This study of an open cohort of smokers recruited from a consumer panel (n = 2753) examined changes in cigarettes per day (CPD), daily vs. non-daily smoking, recent quit attempts, perceived stress, depression, and perceived severity of COVID-19 at two points during the pandemic: March and July 2020. Differences in CPD between waves were estimated with Poisson regression using generalized estimating …

Novel Optimal Multisensor Placement For Indoor Rectilinear Line-Of-Sight Coverage, Prasanga Neupane, Guannan Liu, Hsiao Chun Wu, Shih Yu Chang, Jinwei Ye

Faculty Publications

Optimal multisensor placement/deployment for an arbitrary indoor geometry still remains very challenging nowadays. It is preferable to minimize the number of sensors which can still cover the entire indoor space with a balanced load. However, this multi-objective problem is quite complex in practice. In this work, we will study this critical multisensor placement problem mathematically and algorithmically and propose a systematic approach to tackle this problem. In this paper, we focus on the line-of-sight (LoS) coverage within a rectilinear indoor environment and the sensors' locations are restricted on the perimeter. Our proposed new approach consists of two stages. First, a …

Towards Collaborative And Intelligent Learning Environments Based On Eye Tracking Data And Learning Analytics: A Survey, Yuehua Wang, Shulan Lu, Derek Harter

Faculty Publications

The current pandemic has significantly impacted educational practices, modifying many aspects of how and when we learn. In particular, remote learning and the use of digital platforms have greatly increased in importance. Online teaching and e-learning provide many benefits for information retention and schedule flexibility in our on-demand world while breaking down barriers caused by geographic location, physical facilities, transportation issues, or physical impediments. However, educators and researchers have noticed that students face a learning and performance decline as a result of this sudden shift to online teaching and e-learning from classrooms around the world. In this paper, we focus …

Finding Lgbtq+ Materials At The Unh Library And Beyond, Jay L. Colbert

Faculty Publications

No abstract provided.

Simplifying The Development Of Portable, Scalable, And Reproducible Workflows, Stephen Piccolo, Zachary E. Ence, Elizabeth C. Anderson, Jeffrey T. Chang, Andrea H. Bild

Faculty Publications

Command-line software plays a critical role in biology research. However, processes for installing and executing software differ widely. The Common Workflow Language (CWL) is a community standard that addresses this problem. Using CWL, tool developers can formally describe a tool’s inputs, outputs, and other execution details. CWL documents can include instructions for executing tools inside software containers. Accordingly, CWL tools are portable—they can be executed on diverse computers—including personal workstations, high-performance clusters, or the cloud. CWL also supports workflows, which describe dependencies among tools and using outputs from one tool as inputs to others. To date, CWL has been used …

Diffusional Fractionation Of Helium Isotopes In Silicate Melts, Haiyang Luo, Bijaya Karki, Dipta B. Ghosh, Huiming Bao

Faculty Publications

Estimating Helium (He) concentration and isotope composition of the mantle requires quantifying He loss during magma degassing. The knowledge of diffusional He isotope fractionation in silicate melts may be essential to constrain the He loss. Isotopic mass dependence of He diffusion can be empirically expressed as D3He/D4He = (4/3)^β, where D is the diffusivity of a He isotope. However, no studies have reported any β values for He in silicate melts due to technical challenges in both experiments and computations. Here, molecular dynamics simulations based on deep neural network potentials trained by ab initio data …

Together In The Same Zoom Room, Carl Hess, Ashley Roach-Freiman, Paula Hayes, Heather Kenny

Faculty Publications

First-year students—particularly first-generation, in underrepresented groups, or are socioeconomically-disadvantaged—often struggle to transition from high school level writing and researching to college level. Representatives from the University of Memphis Libraries, English Department, Center for Writing and Communication, and TRiO Student Success Programs collaborated with colleagues in academic and student support across campus on improving the success of first-year writers and researchers. This presentation describes how, using design thinking to identify topics to address with curricular and resource development, participants proposed solutions and interventions that enabled students to understand how writing and research will help them achieve their academic, career, and personal …

Voice-Activated Virtual Home Assistant Use And Social Isolation And Loneliness Among Older Adults: Mini Review, Cynthia F. Corbett, Pamela J. Wright Phd, Ms, Med, Rn, Cen, Kate Jones, Michael Parmer

Faculty Publications

A lack of social connectedness is common among older adults due to living alone, loss of loved ones, reduced mobility, and, more recently, social distancing created by the global Covid-19 pandemic. Older adults are vulnerable to social isolation and loneliness, which pose significant health risks comparable to those of smoking, obesity, physical inactivity, and high blood pressure. A lack of social connectedness is also correlated with higher mortality rates even when controlling for other factors such as age and comorbid conditions. The purpose of this mini review was to explore the emerging concepts of older adults' use of commercially available …

Revealing Public Opinion Towards Covid-19 Vaccines With Twitter Data In The United States: Spatiotemporal Perspective, Tao Hu, Siqin Wang, Wei Luo, Mengxi Zhang, Xiao Huang, Yingwei Yan, Regina Liu, Kelly Ly, Viraj Kacker, Bing She, Zhenlong Li

Faculty Publications

Background: The COVID-19 pandemic has imposed a large, initially uncontrollable, public health crisis both in the United States and across the world, with experts looking to vaccines as the ultimate mechanism of defense. The development and deployment of COVID-19 vaccines have been rapidly advancing via global efforts. Hence, it is crucial for governments, public health officials, and policy makers to understand public attitudes and opinions towards vaccines, such that effective interventions and educational campaigns can be designed to promote vaccine acceptance.

Objective:The aim of this study was to investigate public opinion and perception on COVID-19 vaccines in the United …

Framing Of And Attention To Covid-19 On Twitter: Thematic Analysis Of Hashtags, Iman Tahamtan, Devendra Potnis, Ehsan Mohammadi, Laura E. Miller, Vandana Singh

Faculty Publications

Background: Although past research has focused on COVID-19–related frames in the news media, such research may not accurately capture and represent the perspectives of people from diverse backgrounds. Additionally, research on the public attention to COVID-19 as reflected through frames on social media is scarce.

Objective: This study identified the frames about the COVID-19 pandemic in the public discourse on Twitter, which voices diverse opinions. This study also investigated the amount of public attention to those frames on Twitter.

Methods: We collected 22 trending hashtags related to COVID-19 in the United States and 694,582 tweets written in English containing these …

Trajectories Of Heart Activity Across Infancy To Early Childhood Differentially Predict Autism And Anxiety Symptoms In Fragile X Syndrome, Abigail Hogan Ph.D., Erin Hunt, Kayla Smith, Conner Black, Katherine Bangert, Jessica Klusek Ph.D., Ccc-Slp, Jane Roberts

Faculty Publications

Fragile X syndrome (FXS) is a monogenic disorder characterized by high rates of autism spectrum disorder (ASD) and anxiety. A longstanding "hyperarousal hypothesis" in FXS has argued that ANS dysfunction underpins many symptoms of FXS. However, the developmental onset and trajectory of ANS dysfunction, as well as the consequences of ANS dysfunction on later psychiatric symptoms, remain poorly understood in FXS. Insight into the emergence, trajectory, and consequences of ANS dysfunction across early development in FXS has critical implications for prevention, intervention, and optimal outcomes in both typical and atypical development. This longitudinal study investigated whether and when males with …