Digital Commons Network^™

Calcium Acetate: An Alternative To Gypsum For Brine Impacted Soils, Annalie Peterson

Soil Science

With North Dakota being ranked as a leading producer of oil and natural gas in the United States, the possibility of accidental produced water (aka “brine” or “salt water”) spills is a continuous concern. Brine water poses numerous threats to soil properties as it has the potential of causing soil dispersion by increased concentrations of sodium. The goal of this research was to compare the effectiveness of several calcium amendments: calcium acetate, flue gas desulphurization gypsum and pelletized gypsum, on improving the saturated hydraulic conductivity (Ks) and removing sodium of three brine impacted soils. Ultimately, increasing rates of calcium acetate …

Interview: Coronation 加冕, Wei-Wei Ai 艾未未

Zhou Documents

"Coronation" is a documentary film that records the lockdown of Wuhan, China, during the outbreak of COVID-19 in the spring of 2020. This document includes the poster for "Coronation", as well as an email Q&A about the film with Kate Taylor, a reporter from The Globe and Mail in Chinese. (Zhuocheng Jiang '26)

Intergenerational Transmission Of Alexithymia As A Predictor Of Child Posttraumatic Stress Outcomes During Covid-19, Casey Burton

Theses and Dissertations

The objective of this study was to test the role of parent alexithymia in explaining why some children are functioning relatively well during the COVID-19 pandemic while others are experiencing poor mental health. Participants were 88 U.S. children (M_age = 9.94 years; 54.5% female; 59.1% White) and their parents/caregivers (68.2% female; 59.1% White). Two models were tested: a path model in which the association between parent alexithymia symptoms and child COVID-19-related posttraumatic stress symptoms (PTSS) was mediated by child alexithymia symptoms, and a moderator model in which the association between parent alexithymia symptoms and child PTSS was moderated …

The Value Of Educating Teachers, Coaches, And Athletic Trainers On The Management Of Dental Trauma., Laura Satoski

Theses and Dissertations

Purpose: The aim of this study is to investigate the baseline knowledge and assess the benefit of educating teachers, coaches, and athletic trainers about the management of sports-related dental injuries.

Methods: Teachers, coaches, and athletic trainers working in youth sports activities across the city of Richmond and the Greater Richmond Region were recruited via email. Participants answered a pre-seminar survey to evaluate their baseline knowledge and determine whether they experienced dental trauma with their athletes previously. The survey also indicated whether they participated in a public or private sports facility. The participants watched a pre-recorded virtual seminar educating them on …

Estimating The Statistics Of Operational Loss Through The Analyzation Of A Time Series, Maurice L. Brown

Theses and Dissertations

In the world of finance, appropriately understanding risk is key to success or failure because it is a fundamental driver for institutional behavior. Here we focus on risk as it relates to the operations of financial institutions, namely operational risk. Quantifying operational risk begins with data in the form of a time series of realized losses, which can occur for a number of reasons, can vary over different time intervals, and can pose a challenge that is exacerbated by having to account for both frequency and severity of losses. We introduce a stochastic point process model for the frequency distribution …

The Silent Rage Of Being Loved, Michelle R. Albertson

Theses and Dissertations

The Silent Rage of Being Loved is a multimedia installation working primarily with photography, video, and sculpture. It explores the nuanced ways in which memory, grief, and veneration manifest physically in my life through objects and my body. My proposed thesis installation is intended as a place of refuge for my audience amongst a shrine-like space and for us, collectively, to reexamine and widen the ways in which we experience mourning and grief.

Dregs / Lessons From The Things Around Us, Juan-Manuel Pinzon

Theses and Dissertations

The writing in Lessons From the Things Around Us is in support of the work in my MFA thesis show, dregs. I detail the progression of my making and thinking over the last two years. I expand on the material and personal relationships that have manifested themselves in the work and influenced my approach to the things that surround me. Finally, I point to a more expansive definition of Craft, rooted in its material sensibilities, and the possibilities already present in the field that this definition creates.

What "You" And "We" Say About Me: How Small Shifts In Language Reveal And Empower Fundamental Shifts In Perspective, Ariana Orvell, Susan A. Gelman, Ethan Kross

Psychology Faculty Research and Scholarship

One of the most fundamental, yet often overlooked, compo-nents of language is the personal pronoun system. Pronouns reveal and empower different perspectives, providing insight into and even altering how a person is conceptualiz-ing the self. Here, we illustrate how the pronouns “I,” “you,” and “we” can enable shifts in perspective that bring a person further from, or closer to, others. We additionally highlight the implications of these pronoun shifts on the address-ee(s). We review a growing body of research that focuses on how these words can function as both windows—provid-ing insight into the thoughts and emotions of a speaker, and …

Emotional Experiences In Technology-Mediated And In-Person Interactions: An Experience-Sampling Study, Kate Petrova, Marc S. Schulz

Psychology Faculty Research and Scholarship

No abstract provided.

Satisfaction And Effectiveness Of Opioid Pain Management Among Adults With Cystic Fibrosis: A Mixed Methods Study, Sarah Allgood, Jessica L. Zemlak, Elisabeth Dellon, Siddhartha G. Kapnadak, Jessica Goggin, Noah Lechtzin

College of Nursing Faculty Research and Publications

Background

Chronic pain is common among people living with cystic fibrosis (CF) and associated with worse clinical outcomes. Despite this, little is known about how pain is managed and how opioids are used to treat pain. The purpose of this convergent mixed methods study was to examine self-reported satisfaction and effectiveness of pain management strategies among a sample of adults with CF who are prescribed opioids.

Methods

We developed an online survey querying 4 domains - demographics, pain characteristics, pain communication, and management strategies. This was distributed nationally to adults with CF (n=48) via various online platforms. We obtained quantitative …

Unseen, Unheard: A Qualitative Analysis Of Women’S Experiences Of Exclusively Expressing Breast Milk, Lisa A. Anders, Karen Marie Robinson, Jennifer M. Ohlendorf, Lisa Hanson

College of Nursing Faculty Research and Publications

Background

Breast milk feeding has numerous benefits for women and infants. Positive maternal experiences with breast milk feeding impacts exclusivity, duration, and maternal mental health. Most research focuses on women feeding directly at the breast. Some women elect to feed exclusively expressed milk to their healthy, term infants rather than feed directly at the breast. Little is known about what constitutes a positive experience among this population. Therefore, the aim of this study was to explore women’s experiences of exclusive expression (EE).

Methods

Interviews were conducted via Microsoft Teams to collect qualitative data from a purposive sample of 21 women …

A Qualitative Study Of Emergency Department Delirium Prevention Initiatives, Anita Chary, Shan W Liu, Ilianna Santangelo, Kyler M Godwin, Christopher R Carpenter, Aanand D Naik, Maura Kennedy

Faculty, Staff and Students Publications

BACKGROUND: Delirium is a serious but preventable syndrome of acute brain failure. It affects 15% of patients presenting to emergency care and up to half of hospitalized patients. The emergency department (ED) often represents the entry point for hospital care for older adults and as such is an important site for delirium prevention.

OBJECTIVE: We sought to characterize delirium prevention initiatives in EDs in the United States and Canada.

METHODS: We conducted qualitative interviews with 16 ED administrators representing 14 EDs with delirium prevention initiatives. We used a combined deductive-inductive approach to code responses about involved staff, target patient population, …

Turning Data Into Better Mental Health: Past, Present, And Future, Nidal Moukaddam, Akane Sano, Ramiro Salas, Zakia Hammal, Ashutosh Sabharwal

Staff and Researcher Publications

In this mini-review, we discuss the fundamentals of using technology in mental health diagnosis and tracking. We highlight those principles using two clinical concepts: (1) cravings and relapse in the context of addictive disorders and (2) anhedonia in the context of depression. This manuscript is useful for both clinicians wanting to understand the scope of technology use in psychiatry and for computer scientists and engineers wishing to assess psychiatric frameworks useful for diagnosis and treatment. The increase in smartphone ownership and internet connectivity, as well as the accelerated development of wearable devices, have made the observation and analysis of human …

Functional Studies Of Genetic Variants Associated With Human Diseases In Notch Signaling-Related Genes Using Drosophila, Sheng-An Yang, Jose L Salazar, David Li-Kroeger, Shinya Yamamoto

Duncan NRI Faculty and Staff Publications

Rare variants in the many genes related to Notch signaling cause diverse Mendelian diseases that affect myriad organ systems. In addition, genome- and exome-wide association studies have linked common and rare variants in Notch-related genes to common diseases and phenotypic traits. Moreover, somatic mutations in these genes have been observed in many types of cancer, some of which are classified as oncogenic and others as tumor suppressive. While functional characterization of some of these variants has been performed through experimental studies, the number of ‘variants of unknown significance’ identified in patients with diverse conditions keeps increasing as high-throughput sequencing technologies …

Adult Memory T Cell Responses To The Respiratory Syncytial Virus Fusion Protein During A Single Rsv Season (2018-2019), Brittani N Blunck, Laura S Angelo, David Henke, Vasanthi Avadhanula, Matthew Cusick, Laura Ferlic-Stark, Lynn Zechiedrich, Brian E Gilbert, Pedro A Piedra

Faculty, Staff and Students Publications

Respiratory Syncytial Virus (RSV) is ubiquitous and re-infection with both subtypes (RSV/A and RSV/B) is common. The fusion (F) protein of RSV is antigenically conserved, induces neutralizing antibodies, and is a primary target of vaccine development. Insight into the breadth and durability of RSV-specific adaptive immune response, particularly to the F protein, may shed light on susceptibility to re-infection. We prospectively enrolled healthy adult subjects (n = 19) and collected serum and peripheral blood mononuclear cells (PBMCs) during the 2018–2019 RSV season. Previously, we described their RSV-specific antibody responses and identified three distinct antibody kinetic profiles associated with infection …

Creating A Collaborative Trauma-Informed Interdisciplinary Citywide Victim Services Model Focused On Health Care For Survivors Of Human Trafficking, Juhi Jain, Mackenzie Bennett, Mark D Bailey, Daniel Liaou, Sheri-Ann O Kaltiso, Jordan Greenbaum, Kimberly Williams, Mollie R Gordon, Melissa I M Torres, Phuong T Nguyen, John H Coverdale, Victor Williams, Cayla Hari, Samantha Rodriguez, Temilola Salami, Jonell E Potter

Center for Medical Ethics and Health Policy Staff Publications

Although human trafficking is recognized as a public health issue, research on the health effects of human trafficking and best intervention practices is limited. We describe 2 citywide collaborative victim services models, the THRIVE (Trafficking, Healthcare, Resources, and Interdisciplinary Victim Services and Education) Clinic at the University of Miami and Jackson Health System in Miami, Florida, and the Greater Houston Area Pathways for Advocacy-based, Trauma-Informed Healthcare (PATH) Collaborative at Baylor College of Medicine, CommonSpirit Health, and San Jose Clinic in Houston, Texas, funded in part by the Office for Victims of Crime, which focus on trauma-informed health care delivery for …

A Channel State Information Based Virtual Mac Spoofing Detector, Peng Jiang, Hongyi Wu, Chunsheng Xin

Electrical & Computer Engineering Faculty Publications

Physical layer security has attracted lots of attention with the expansion of wireless devices to the edge networks in recent years. Due to limited authentication mechanisms, MAC spoofing attack, also known as the identity attack, threatens wireless systems. In this paper, we study a new type of MAC spoofing attack, the virtual MAC spoofing attack, in a tight environment with strong spatial similarities, which can create multiple counterfeits entities powered by the virtualization technologies to interrupt regular services. We develop a system to effectively detect such virtual MAC spoofing attacks via the deep learning method as a countermeasure. …

Broadband Dielectric Spectroscopic Detection Of Ethanol: A Side-By-Side Comparison Of Zno And Hkust-1 Mofs As Sensing Media, Papa K. Amoah, Zeinab Mohammed Hassan, Pengtao Lin, Engelbert Redel, Helmut Baumgart, Yaw S. Obeng

Electrical & Computer Engineering Faculty Publications

The most common gas sensors are based on chemically induced changes in electrical resistivity and necessarily involve making imperfect electrical contacts to the sensing materials, which introduce errors into the measurements. We leverage thermal- and chemical-induced changes in microwave propagation characteristics (i.e., S-parameters) to compare ZnO and surface-anchored metal-organic-framework (HKUST-1 MOF) thin films as sensing materials for detecting ethanol vapor, a typical volatile organic compound (VOC), at low temperatures. We show that the microwave propagation technique can detect ethanol at relatively low temperatures (<100 >°C), and afford new mechanistic insights that are inaccessible with the traditional dc-resistance-based measurements. In addition, …

Broadband Dielectric Spectroscopic Detection Of Aliphatic Alcohol Vapors With Surface-Mounted Hkust-1 Mofs As Sensing Media, Papa K. Amoah, Zeinab Mohammed Hassan, Rhonda R. Franklin, Helmut Baumgart, Engelbert Redel, Yaw S. Obeng

Electrical & Computer Engineering Faculty Publications

We leveraged chemical-induced changes to microwave signal propagation characteristics (i.e., S-parameters) to characterize the detection of aliphatic alcohol (methanol, ethanol, and 2-propanol) vapors using TCNQ-doped HKUST-1 metal-organic-framework films as the sensing material, at temperatures under 100 °C. We show that the sensitivity of aliphatic alcohol detection depends on the oxidation potential of the analyte, and the impedance of the detection setup depends on the analyte-loading of the sensing medium. The microwaves-based detection technique can also afford new mechanistic insights into VOC detection, with surface-anchored metal-organic frameworks (SURMOFs), which is inaccessible with the traditional coulometric (i.e., resistance-based) measurements.

A Primer On Software Defined Radios, Dimitrie C. Popescu, Rolland Vida

Electrical & Computer Engineering Faculty Publications

The commercial success of cellular phone systems during the late 1980s and early 1990 years heralded the wireless revolution that became apparent at the turn of the 21st century and has led the modern society to a highly interconnected world where ubiquitous connectivity and mobility are enabled by powerful wireless terminals. Software defined radio (SDR) technology has played a major role in accelerating the pace at which wireless capabilities have advanced, in particular over the past 15 years, and SDRs are now at the core of modern wireless communication systems. In this paper we give an overview of SDRs that …

Load Sharing Assessment Of Osseoligamentous Structures Within A Thoracic Spine Segment During Surgical Release, Michael Polanco, James Bennett, Austin Tapp, Michel Audette, Stacie Ringleb, Sebastian Bawab

Electrical & Computer Engineering Faculty Publications

Spinal surgical procedures often require release of intervertebral discs and ligaments to optimally achieve postural correction on a patient-specific basis. In this paper, a T7-T8 Finite Element (FE) model is utilized to examine internal load sharing during resection steps performed in a Ponte osteotomy. The FE model was rotated bidirectionally along three anatomical planes using an externally applied moment. In each step, the Ranges of Motion (RoM), Instantaneous Centers of Rotation (ICR), and forces from ligaments, discs, facet, and costovertebral joints were calculated. The product of each component’s force and the distance between the ICR and their position were used …

Targeting Current And Future Threats: Recent Methodological Trends In Environmental Antimicrobial Resistance Research And Their Relationships To Risk Assessment, Tucker R. Burch, Ryan J. Newton, Lee K. Kimbell, Emily Lou Lamartina, Kassidy N. O'Malley, San Marie Victoria Thomson, Christopher Marshall, Patrick J. Mcnamara

Civil and Environmental Engineering Faculty Research and Publications

Antimicrobial resistance (AMR) is a growing public health threat. Improved surveillance of AMR's genetic indicators in environmental reservoirs should lead to a more comprehensive understanding of the problem at a global scale, as with SARS-CoV-2 monitoring in sewage. However, the “best” monitoring approach is unclear. Some scientific works have emphasized monitoring for the abundance of already-known antimicrobial resistance genes (ARGs); others have emphasized monitoring for the potential of new ARGs to arise. The goal of this study was to examine which methods were employed by highly-cited papers studying AMR in environmental engineering and agricultural systems, thus providing insight into current …

Effect Of Joint Rotation On Curling Responses In Airfield Rigid Pavements, Jaime Hernandez, Imad L. Al-Qadi

Civil and Environmental Engineering Faculty Research and Publications

This paper quantifies the relevance of restriction to joint rotation of an airfield concrete pavement when calculating critical curling stresses and deflections using a validated finite element model. The validation uses strains measured at the John F. Kennedy International Airport. To calculate critical curling stresses and deflections, the pavement was subjected to 5263 h of temperature variation determined by utilising the enhanced integrated climate model and thermocouple readings. The profiles include a wide range of average temperatures, temperature gradients, and temperature nonlinearity. Three conditions were included: (1) joints free to displace and rotate; (2) joints free to rotate, but partially …

Towards Advanced Data Skills For Information Systems Graduates, Ashraf Shirani

Faculty Research, Scholarly, and Creative Activity

This study aims to explore advanced data skills -in particular technical skills expected of a data engineering (DE) professional. Descriptions and requirements for the DE jobs, one each from 50 US companies, were collected from three job sites. An automated text analysis was performed on the job descriptions to extract a list of technical skills and competencies required for the DE job in the industry. The extracted information was then manually synthesized and categorized by the author. Findings of the study are intended to be of use by information systems graduates looking to pursue advanced data education and for curricula …

Can Continuing Legal Education Pass The Test? Empirical Lessons From The Medical World., Rima Sirota

Georgetown Law Faculty Publications and Other Works

Mandatory continuing legal education (CLE) takes millions of hours and hundreds of millions of dollars from American lawyers every year, with the burden landing in disproportionate fashion on new lawyers, public interest lawyers, and solo practitioners. CLE proponents insist that the system protects the public by maintaining lawyer competence. In the forty-five years since the first jurisdictions began requiring CLE, no evidence has emerged in support of this claim.

This Article argues that mandatory CLE is indefensible in its current state. Either the legal profession and the CLE industry must commit to study and change, or it is time to …

Soft Law, Risk Cultures, And Law Abidingness: The Caremark Connection, Donald C. Langevoort

Georgetown Law Faculty Publications and Other Works

As Vice Chancellor, Chancellor, Chief Justice, and recidivist law review author, Leo Strine has had much to say about the often-frustrating effort at corporate behavior modification. One point he makes very insistently is that pursuant to their state-granted charters, corporations are authorized to take part only in lawful business, not any profitable business. Respect for life-giving law is thus a necessary corollary of good corporate citizenship. But good citizenship is so hard to instill, which irks him. An angry display of this is Strine’s Delaware Supreme Court dissenting opinion in City of Birmingham Retirement System v. Good, involving Duke …

Diversifying And Transforming A Public University’S Children’S Book Collection: Librarian And Teacher Education Faculty Collaboration On Grants, Research, And Collection Development, Alison Lehner-Quam

Publications and Research

An education librarian and faculty member collaborated on research grants to study teacher education student’s experiences with diverse books and to develop library collections. This study explores the development of internally grant-funded linguistically and culturally sustaining children’s book collections and assesses the impact of the grants with a model that analyzes research guide use, library instruction sessions, and reflection on grant-funded research, among other components. Intentional collection practices, including grant-funded collection development; faculty partnership; nontraditional bibliographic tools; and alternative forms of access, discovery, and shelving led to a vital and linguistically and culturally sustaining collection which reflects education student’s diverse …

Worth The Time: Exploring The Faculty Experience Of Oer Initiatives, Stacy Katz, Shawna M. Brandle

Publications and Research

Open Educational Resources (OER) initiatives, organized efforts to facilitate the adoption of OER, are increasing in popularity throughout the United States as a means of encouraging faculty to teach with these materials. Faculty participate in these initiatives despite other demands on their time and the lack of recognition for OER usage in the tenure and promotion process. To better understand this phenomenon, the authors conducted in-depth interviews with full-time faculty at senior colleges of the City University of New York (CUNY) and thematically analyzed the transcripts. Faculty were interviewed across colleges, teaching disciplines, and tenure status, yet their experiences with …

Gender Disparities In Covid Deaths, Lisamarie Bennett

Student Publications and Presentations

The public health response to the breakout of COVID-19 requires fundamental changes in individual behavior, such as isolation at home or social distancing. However, the difference in COVID mortality rates between men and women could indicate gender differences in COVID-19 attitudes and behavior. In this study, we used a sample of 512 participants to examine whether there were relationships between gender and degree of adherence to social distancing and quarantining protocols. An independent samples t-Test was conducted to evaluate the hypothesis that men spend fewer days social distancing than women. The test was not significant. Another independent samples t-Test was …

Tyrosine Phosphatase Ptpro Deficiency In Erbb2-Positive Breast Cancer Contributes To Poor Prognosis And Lapatinib Resistance., Hongmei Dong, Liang Du, Songwang Cai, Wan Lin, Chaoying Chen, Matthew Still, Zhimeng Yao, Robert P Coppes, Yunlong Pan, Dianzheng Zhang, Shegan Gao, Hao Zhang

PCOM Scholarly Works

Despite the initial benefit from treating ERBB2-positive breast cancer with tyrosine kinase inhibitor lapatinib, resistance develops inevitably. Since the expression of protein tyrosine phosphatase receptor-type O (PTPRO), a member of the R3 subfamily of receptor protein tyrosine phosphatases (PTPs), is inversely correlated with the aggressiveness of multiple malignancies, we decided to explore the correlation between PTPRO and lapatinib resistance in ERBB2-positive breast cancer. Results of immunohistochemical (IHC) staining and the correlation analysis between the expression levels of PTPRO and the clinicopathological parameters indicate that PTPRO is downregulated in cancer tissues as compared with normal tissues and negatively associated with differentiation, …