Digital Commons Network^™

Pecarn Prediction Rule For Cervical Spine Imaging Of Children Presenting To The Emergency Department With Blunt Trauma: A Multicentre Prospective Observational Study, Julie C Leonard, Monica Harding, Lawrence J Cook, Jeffrey R Leonard, Kathleen M Adelgais, Fahd A Ahmad, Lorin R Browne, Rebecca K Burger, Pradip P Chaudhari, Daniel J Corwin, Nicolaus W Glomb, Lois K Lee, Sylvia Owusu-Ansah, Lauren C Riney, Alexander J Rogers, Daniel M Rubalcava, Robert E Sapien, Matthew A Szadkowski, Leah Tzimenatos, Caleb E Ward, Kenneth Yen, Nathan Kuppermann

Faculty, Staff and Students Publications

Background: Cervical spine injuries in children are uncommon but potentially devastating; however, indiscriminate neck imaging after trauma unnecessarily exposes children to ionising radiation. The aim of this study was to derive and validate a paediatric clinical prediction rule that can be incorporated into an algorithm to guide radiographic screening for cervical spine injury among children in the emergency department.

Methods: In this prospective observational cohort study, we screened children aged 0-17 years presenting with known or suspected blunt trauma at 18 specialised children's emergency departments in hospitals in the USA affiliated with the Pediatric Emergency Care Applied Research Network (PECARN). …

Practical Tips For Paediatricians: Precordial Catch Syndrome, Karina Kofman, Lisa C A D'Alessandro, Betul Yilmaz Furtun

Faculty, Staff and Students Publications

No abstract provided.

Perinatal Mental Healthcare Utilization Among Patients With Placenta Accreta Spectrum, Sarah R Casey, Alison N Goulding, Christina C Reed, Amir A Shamshirsaz, Hennie A Lombaard, Michael A Belfort, Lisa M Noll, Karin A Fox

Faculty, Staff and Students Publications

No abstract provided.

Should The Incretin Hype Be The Same For Older Adults: Promise + Cautions, John A Batsis, Kathryn N Porter Starr, Dennis T Villareal

Faculty, Staff and Students Publications

No abstract provided.

On Angles In Higher Order Brillouin Tessellations And Related Tilings In The Plane, Herbert Edelsbrunner, Alexey Garber, Mohadese Ghafari, Teresa Heiss, Morteza Saghafian

School of Mathematical & Statistical Sciences Faculty Publications

For a locally finite set in R 2 , the order-k Brillouin tessellations form an infinite sequence of convex face-to-face tilings of the plane. If the set is coarsely dense and generic, then the corresponding infinite sequences of minimum and maximum angles are both monotonic in k. As an example, a stationary Poisson point process in R 2 is locally finite, coarsely dense, and generic with probability one. For such a set, the distributions of angles in the Voronoi tessellations, Delaunay mosaics, and Brillouin tessellations are independent of the order and can be derived from the formula for angles in …

Parker Solar Probe Observations Of Energetic Particles In The Flank Of A Coronal Mass Ejection Close To The Sun, Nathan A. Schwadron, Stuart D. Bale, J Bonnell, A Case, M Shen, E R. Christian, C M S Cohen, A J. Davis, M I. Desai, K Goetz, J Giacalone, M E. Hill, J C. Kasper, K Korreck, D Larson, R Livi, T Lim, R A. Leske, O Malandraki, D Malaspina, W H. Matthaeus, D J. Mccomas, R L. Mcnutt, R A. Mewaldt, D G. Mitchell

Faculty Publications

We present an event observed by Parker Solar Probe (PSP) at ∼0.2 au on 2022 March 2 in which imaging and in situ measurements coincide. During this event, PSP passed through structures on the flank of a streamer blowout coronal mass ejection (CME) including an isolated flux tube in front of the CME, a turbulent sheath, and the CME itself. Imaging observations and in situ helicity and principal variance signatures consistently show the presence of flux ropes internal to the CME. In both the sheath and the CME interval, the distributions are more isotropic, the spectra are softer, and the …

Interstellar Neutral Hydrogen In The Heliosphere: New Horizons Observations In The Context Of Models, P Swaczyna, M Bzowski, K Dialynas, L Dyke, F Fraternale, A Galli, J Heerikhuisen, M Z. Kornbleuth, D Koutroumpa, I Kowalska-Leszczyńska, M A. Kubiak, A T. Michael, H -R Müller, M Opher, Fatemeh Rahmanifard

Faculty Publications

Interstellar neutral (ISN) hydrogen is the most abundant species in the outer heliosheath and the very local interstellar medium (VLISM). Charge-exchange collisions in the outer heliosheath result in filtration, reducing the ISN hydrogen density inside the heliosphere. Additionally, these atoms are intensively ionized close to the Sun, resulting in a substantial reduction of their density within a few astronomical units from the Sun. The products of this ionization—pickup ions (PUIs)—are detected by charged particle detectors. The Solar Wind Around Pluto instrument on New Horizons provides, for the first time, PUI observations from the distant heliosphere. We analyze the observations collected …

Persistent Behavior In Solar Energetic Particle Time Series, N V. Sarlis, G Livadiotis, D J. Mccomas, M E. Cuesta, L Y. Khoo, C M S Cohen, D G. Mitchell, Nathan A. Schwadron

Faculty Publications

We investigate the long-term persistence of solar energetic particle (SEP) time series by means of four different methods: Hurst rescaled range R/S analysis, detrended fluctuation analysis, centered moving average analysis, and the fluctuation of natural time under the time reversal method. For these analyses, we use data sets from the Integrated Science Investigation of the Sun instrument suite on board NASA's Parker Solar Probe. Background systematic noise is modeled using cross-correlation analysis between different SEP energy channels and subtracted from the original data. The use of these four methods for deriving the time-series persistence allows us to (i) differentiate between …

An Examination Of The Lived Experiences Of Black Women In Senior Leadership Roles At Cccu Member Institutions, Tuccoa Polk

Electronic Theses and Dissertations

This narrative inquiry qualitative research study explored the lived experiences of Black women in senior leadership roles at Council for Christian Colleges & Universities (CCCU) member institutions. Using Black feminist thought as the theoretical framework, this research study centered on the voices of 10 current or recently retired Black female senior-level leaders at CCCU campuses. The research study focused on one central research question and three subquestions that examined the challenges and barriers experienced by the participants, the role of mentorship in their leadership journey, and the impact of the participants’ Christian faith in their career trajectory to senior leadership …

Exploring Principal Turnover In Oklahoma, Brett Bradley

Electronic Theses and Dissertations

Schools that maintain the same principal for 5 or more years report increased student achievement, increased teacher retention, and a positive school culture. The problem is that over 70% of principals will not remain in the same school for 5 years and the average principal turnover rate in the United States is 22%. The purpose of this quantitative study was to explore

principal turnover in Oklahoma from 2011–2024 by answering the following research questions: What is the average principal turnover rate for principals in Oklahoma? Is there a significant difference in elementary and secondary principal turnover rates? Is there a …

Impact Of Workplace Spirituality On Turnover Intention, Employee Engagement, And Job Satisfaction: An Empirical Study On Allied Health Care Professionals In The United States, Kerene A. Hoilett

Electronic Theses and Dissertations

Healthcare organizations may experience high expenses, turnover costs, and low morale, which may limit their ability to keep allied healthcare employees engaged and satisfied, resulting in high turnover. Yet, little is understood concerning the impact workplace spirituality may have on job outcomes such as turnover intention, job satisfaction, and employee engagement among allied healthcare workers in the United States. Job embeddedness and social exchange theories guided this study. An online survey incorporating workplace spirituality, turnover intentions, job satisfaction, and employee engagement was administered to 133 United States allied healthcare employees. Descriptive and inferential analyses were used to describe the data …

Multi-Link Prediction For Mmwave Wireless Communication Systems Using Liquid Time-Constant Networks, Long Short- Term Memory, And Interpretation Using Symbolic Regression, Vishnu S. Pendyala, Milind Patil

Faculty Research, Scholarly, and Creative Activity

A significant challenge encountered in mmWave and sub-terahertz systems used in 5G and the upcoming 6G networks is the rapid fluctuation in signal quality across various beam directions. Extremely high-frequency waves are highly vulnerable to obstruction, making even slight adjustments in device orientation or the presence of blockers capable of causing substantial fluctuations in link quality along a designated path. This issue poses a major obstacle because numerous applications with low-latency requirements necessitate the precise forecasting of network quality from many directions and cells. The method proposed in this research demonstrates an avant-garde approach for assessing the quality of multi-directional …

A Serial Mediation Model Of Depression And Drinking Motives Underlying Problem Drinking Among Hispanic College Women Following Rape, Michiyo Hirai, Laura L. Vernon, Andrew E. Dials

Psychological Science Faculty Publications

Problem drinking and depression are common following sexual assault. The current study applied a coping motives model of drinking and examined the association between rape experiences and problem drinking serially mediated by depression symptoms and coping-depression drinking motives among Hispanic college women. A total of 330 college women were classified into a single rape experience (SGL) group (n = 44), a multiple rape experiences (MLT) group (n = 70), and a no sexual assault experience group (n = 221). Participants completed self-report measures online. Serial mediation analyses with multi-categorical predictors found that significantly increased alcohol consumptions in …

Brome Grass And Its Management In Crops, Department Of Primary Industries And Regional Development, Western Australia

Grains and other field crops factsheets

Brome grass (Bromus spp.) is one of the most competitive grass weeds in wheat. Over the last 10 years, brome grass has increased in importance to a greater extent than any other weed species in Australia.

Recent changes in crop production systems, increased conservation tillage, a lack of available selective herbicides, and a decline in system diversity have seen an increase in the importance of this weed in Western Australia (WA).

Seed is the main source of brome grass infestation and, as few seeds remain dormant, the most important aspect of management is to reduce its seed bank.

The Impact Of Teachers' Emotional Labor On Teachers And Students: A Literature Review, Jingjing Yu

Educational Theory and Practice Faculty Scholarship

Abstract: Emotional labor (EL) is a significant component of teachers' daily work. Duringtheir daily teaching activities, teachers experience various emotional responses. However,they do not always express their genuine emotions, but rather adopt different strategies toregulate their feelings. This process is referred to as emotional labor. Previous studies onteachers' EL have typically focused on a single aspect concerning either teachers or students.Therefore, this study synthesizes the effects of various EL strategies on both the cognitiveand emotional well-being of teachers, as well as on students' academic and emotionaldevelopment. By reviewing prior research on teachers' EL, we summarize the impact of ELon both …

Black Radio’S Contribution To Collective And Cultural Memory: Personnel Perspectives Of Black Radio History In The United States, Kim Fox

Faculty Journal Articles

This interdisciplinary research investigates the significance of the community connection between Black radio personnel and their audiences through the lens of collective and cultural memory narratives. The study addresses two key research questions. First, how do Black radio personnel’s collective and cultural memories contribute to the Black public sphere? Second, what are the defining characteristics in developing parasocial relationships and interactions between Black radio personalities and their audiences? The qualitative research employs an autoethnographic methodology and a questionnaire, utilizing insights gained from the author’s experiences working at a Black-owned radio network and station. The questionnaire, distributed to key informants in …

Soxb1 Transcription Factors Are Essential For Initiating And Maintaining Neural Plate Border Gene Expression, Elizabeth Schock, Joshua R. York, Austin P. Li, Ashlyn Y. Tu, Carole Labonne

Markey Cancer Center Faculty Publications

SoxB1 transcription factors (Sox2/3) are well known for their role in early neural fate specification in the embryo, but little is known about functional roles for SoxB1 factors in non-neural ectodermal cell types, such as the neural plate border (NPB). Using Xenopus laevis, we set out to determine whether SoxB1 transcription factors have a regulatory function in NPB formation. Here, we show that SoxB1 factors are necessary for NPB formation, and that prolonged SoxB1 factor activity blocks the transition from a NPB to a neural crest state. Using ChIP-seq, we demonstrate that Sox3 is enriched upstream of NPB genes in …

Discussions Of Cancer Survivorship Care Needs: Are There Rural Versus Urban Inequities?, Tyrone F. Borders, Lindsey R. Hammerslag

Markey Cancer Center Faculty Publications

Background: Rural cancer survivors may face greater challenges receiving survivorship care than urban cancer survivors.

Purpose: To test for rural versus urban inequities and identify other correlates of discussions about cancer survivorship care with healthcare professionals.

Methods: Data are from the 2017 Medical Expenditure Panel Survey (MEPS), which included a cancer survivorship supplement. Adult survivors were asked if they discussed with a healthcare professional 5 components of survivorship care: need for follow-up services, lifestyle/health recommendations, emotional/social needs, long-term side effects, and a summary of treatments received. The Behavioral Model of Health Services guided the inclusion of predisposing, enabling, and need …

Diffuse Reflectance Spectroscopy For Optical Characterizations Of Orthotopic Head And Neck Cancer Models In Vivo, Pranto Soumik Saha, Jing Yan, Caigang Zhu

Markey Cancer Center Faculty Publications

We demonstrated an easy-to-build, portable diffuse reflectance spectroscopy device along with a Monte Carlo inverse model to quantify tissue absorption and scattering-based parameters of orthotopic head and neck cancer models in vivo. Both tissue-mimicking phantom studies and animal studies were conducted to verify the optical spectroscopy system and Monte Carlo inverse model for the accurate extraction of tissue optical properties. For the first time, we reported the tissue absorption and scattering coefficients of mouse normal tongue tissues and tongue tumor tissues. Our in vivo animal studies showed reduced total hemoglobin concentration, lower tissue vascular oxygen saturation, and increased tissue scattering …

A Probabilistic Approach To Estimate The Temporal Order Of Pathway Mutations Accounting For Intra-Tumor Heterogeneity, Menghan Wang, Yanqi Xie, Jinpeng Liu, Austin Li, Li Chen, Arnold Stromberg, Susanne Arnold, Chunming Liu, Chi Wang

Markey Cancer Center Faculty Publications

The development of cancer involves the accumulation of somatic mutations in several essential biological pathways. Delineating the temporal order of pathway mutations during tumori- genesis is crucial for comprehending the biological mechanisms underlying cancer development and identifying potential targets for therapeutic intervention. Several computational and statistical methods have been introduced for estimating the order of somatic mutations based on mutation profile data from a cohort of patients. However, one major issue of current methods is that they do not take into account intra-tumor heterogeneity (ITH), which limits their ability to accurately discern the order of pathway mutations. To address this …

Response To Replication Stress And Maintenance Of Genome Stability By Wrn, The Werner Syndrome Protein, David K. Orren, Amrita Machwe

Markey Cancer Center Faculty Publications

Werner syndrome (WS) is an autosomal recessive disease caused by loss of function of WRN. WS is a segmental progeroid disease and shows early onset or increased frequency of many characteristics of normal aging. WRN possesses helicase, annealing, strand exchange, and exonuclease activities and acts on a variety of DNA substrates, even complex replication and re- combination intermediates. Here, we review the genetics, biochemistry, and probably physiological functions of the WRN protein. Although its precise role is unclear, evidence suggests WRN plays a role in pathways that respond to replication stress and maintain genome stability particularly in telomeric regions.

Reading Colonial Transitions: Archival Evidence And The Archaeology Of Indigenous Action In Nineteenth-Century California, Lee M. Panich, Gustavo Flores, Michael Wilcox, Monica V. Arellano

Faculty Publications

Archaeologists in North America and elsewhere are increasingly examining long-term Indigenous presence across multiple colonial systems, despite lingering conceptual and methodological challenges. We examine this issue in California, where archaeologists and others have traditionally overlooked Native persistence in the years between the official closing of the region's Franciscan missions in the 1830s and the onset of US settler colonialism in the late 1840s. In particular, we advocate for the judicious use of the documentary record to ask new questions of Indigenous life during this short but critical period, when many Native Californians were freed from the missions and sought new …

Assessing Soil Properties For Optimized Irrigation Development In Sudan, Northern Africa, Suhib Hamid, Derek M. Heeren, Aaron R. Mittelstet, Saleh Taghvaeian, Randall S. Ritzema

Department of Agricultural and Biological Systems Engineering: Presentations and White Papers

Sustainable irrigation methods maximize agricultural productivity in Northern African countries like Sudan. This project evaluates soil properties to develop optimized irrigation strategies for Sudan's arid and semi-arid climate. Assessing soil characteristics such as texture, infiltration rates, and nutrient content informs the selection of modern irrigation systems. Data from 3,192 locations, collected using GPS and ring infiltrometers for infiltration rates, alongside laboratory analyses for soil properties, were employed. A ranking system determined suitable irrigation systems for specific soil classes, considering factors like slope, wind, crop tolerance, available water capacity (AWC), drainage, germination, capital cost, labor cost, maintenance, and evapotranspiration (ET). The …

A Cross-Sectional Analysis Of Preterm Birth Incidence And Survival In Al Kharj, Saudi Arabia, Mshari Alghadier, Muneera Alasraj, Ragab Elnaggar, Mashael Alazmi, Asma Aldawsari, Saud Alnadah, Faisal Alqahtani, Donia Zaghamir

Saudi Medical Journal

Objectives: To understand the prevalence and survival rates of preterm birth (PTB) is of utmost importance in informing healthcare planning, improving neonatal care, enhancing maternal and infant health, monitoring long-term outcomes, and guiding policy and advocacy efforts. Methods: The medical records of preterm infants admitted to the Neonatal Intensive Care Unit (NICU) with a diagnosis of prematurity at the Maternity and Children’s Hospital (MCH), Al Kharj, Saudi Arabia, were reviewed between January 2018 and December 2022. Data were collected on birth weight (BW), gender, number of live births, gestational age, mortality, nationality, APGAR score, length of stay in the NICU, …

Decision Making For People Living With Hiv/Aids Using The Theory Of Innovation Diffusion Model At The Western Provident Association Turen Foundation, Tri N. Sasono, Esti Yunitasari, Ninuk D. Kurniawati, Nusalam Nursalam, Ainun Hurrotaini, Makhfudli Makhfudli, Ferry Efendi

Saudi Medical Journal

Objectives: To describe how people living with HIV/AIDS (PLWHA) make decisions using the diffusion of innovation theory model. Decisions occur when individual decision makers engage in activities that guide choices to adopt or reject a particular innovation. Methods: This is a descriptive analysis research using a survey method. Data collection was carried out using a decision making questionnaire. The subjects in this research were HIV/AIDS sufferers (PLWHA) who lived in Turen, Indonesia. The number of research subjects was 36 respondents obtained using the purposive sampling technique on January 2023. Results: The research design used the correlation method with a cross …

Borderplex Business Barometer, Volume 8, Number 7, Thomas M. Fullerton Jr., Steven L. Fullerton

Border Region Modeling Project

No abstract provided.

Incorporating Intrinsic Structures Into Entity Matching And Representation Learning, Ween Jiann Lee

Dissertations and Theses Collection (Open Access)

The proliferation of internet-connected devices and online services has generated vast amounts of user-generated content in various formats, such as text, visual, and spatial information. Despite the potential of advanced deep learning techniques, challenges such as fragmentation, lack of cohesive structure, and the inability to capture intrinsic data structures persist, affecting data amalgamation and quality. Our research addresses these challenges by enhancing entity matching and representation learning across graph, semi-ordered, and spatial data. These advancements have significant implications for applications in transportation, recommendation systems, and urban planning.

In entity matching, we introduce Robust BiPoly-Matching and Semi-Ordered Bidirectional Poly-Matching. Matching records …

Creating And Delivering Audio Descriptions For Videos, Rosiana Natalie

Dissertations and Theses Collection (Open Access)

Despite anti-discrimination regulations mandating the provision of audio descriptions (ADs), the majority of online video content remains inaccessible to blind and low-vision (BLV) individuals. This is because these ADs are either absent or fail to adequately address the diverse and unique needs of the audience. Traditionally, content creators have relied on professionals to author ADs. However, this gold standard may not be accessible for some content creators because this method is still costly and has a long turnaround time. Moreover, when ADs are available, they tend to be static and unalterable, failing to cater to the unique preferences of BLV …

Essays On Artificial Intelligence (Ai) In Management, Bowen Zhou

Dissertations and Theses Collection (Open Access)

This dissertation comprises three essays that investigate the transformative potential of Artificial Intelligence (AI) in business.

Chapter 1 investigates the fundamental issue of how integrating AI within R&D activities influences a firm’s market value. We developed an "AI Index" using patent data and textual analysis. Interestingly, empirical results indicate a negative correlation between AI integration and market value. However, this does not suggest that AI is an unviable avenue for exploration. Further analysis of the boundary conditions reveals that complementary assets are crucial for successful commercialisation, highlighting that while AI adoption is costly, these assets significantly enhance its market value. …

Examining A Regulatory Flexibility Framework Of Psychological Distress: Integrating Distress Tolerance, Emotion Differentiation, And Emotion Regulation Flexibility, Germaine Yue Qi Tng

Dissertations and Theses Collection (Open Access)

Several theoretical accounts identify emotion regulation (ER) difficulties, including poor abilities to withstand or distinguish negative emotions, as a transdiagnostic risk factor for symptoms of psychological distress. Considering this, nascent evidence hints that ER flexibility may be a mediating mechanism that explains the relationship between specific ER abilities (i.e., distress tolerance, negative emotion differentiation) and distress symptoms. Across time-lagged (Study 1) and three-wave longitudinal (Study 2) investigations of college-aged adults, a regulatory flexibility framework of distress was examined in which ER flexibility mediates the respective pathways from distress tolerance and negative emotion differentiation to psychological distress symptoms. Furthermore, we explored …