Digital Commons Network^™

Retraction: A Database Of Teleseismic Shear-Wave Splitting Measurements For The Ordos Block And Adjacent Areas(Seismological Research Letters (2022), 93, 5, (2731–2739), 10.1785/0220210310), Lin Liu, Stephen S. Gao, Kelly H. Liu, Tu Xue, Yan Jia, Sanzhong Li

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

An earlier version of this article (Liu et al., 2022) included private data from the Himalayan-III program which should not have been made public. The authors acknowledge and regret their negligence during the selection of the measurements. The impacted data represent only 2.7% of the total data published in this article, and after review, the authors and the editors agree that this unintentional error has no bearing on the work's scientific conclusions. Therefore, we are retracting the impacted data and have made corrections to remove any Himalayan-III program data from the article's text, figures, and supplemental tables.

Analyzing Google Maps As A Data Source For Urban Research In Dhaka, Xinyi Du

Dissertations and Theses Collection (Open Access)

This paper investigates how mass transit infrastructure shapes urban economic activity by examining the impact of Dhaka's first metro line using novel Google Maps data. Leveraging the opening of Metro Line 6 on December 2022, we employ a difference-in-differences framework to analyze changes in business establishment density around metro stations. Our estimates show that every 1% reduction in distance to the nearest metro station adds, on average, about 0.092–0.111 establishments per 40 m × 40 m grid cell—that is, roughly 57 – 69 additional businesses per square kilometer. The effect is even more pronounced for dining: about 1 – 4 …

Machine Learning For Digital Biomarker-Based Detection Of Cognitive Decline, Seng Khoon The

Dissertations and Theses Collection (Open Access)

Dementia is a neurodegenerative disease with a prevalence rate expected to triple by 2050, posing a significant challenge for health services. To impede the increasing prevalence, medical professionals and scientists are actively investigating technology to detect cognitive decline at a reversible stage known as Mild Cognitive Impairment (MCI). Digital biomarker technology is an emerging pragmatic approach to permit objective, ecologically valid, and long-term continuous measurement of cognitive health status, rendering it as one of the promising technologies for early MCI detection. Despite its potential, it is nontrivial to encode, extract and combine predictive information from these digital biomarker technologies; advanced …

Advanced Biodegradable Antimicrobial Coatings By Combining Biopolymers And Natural Antimicrobials For The Active Packaging And Extending The Shelf-Life Of Fish And Other Seafood Products: A Review, Hariharan S. Melarcode, Onur Ertugrul, Paola C. Alzate Calderon, Joseph P. Kerry, Michael A. Morris

Research Outputs: 2025-Present

Fish and other seafood products are an integral and valuable part of human diets. In advanced nations, the transportation of fish and other seafood products to customers requires packaging and display. Due to their intrinsic physicochemical properties, seafood products are particularly susceptible to microbial growth, resulting in shorter shelf lives and higher spoilage rates compared to other animal-derived proteins, such as meat. To prevent microbial spoilage and preserve the freshness and quality of fish and other seafood products, petroleum-based plastic materials are commonly used in combination with packaging technologies, such as vacuum packaging and modified atmosphere packaging. However, as these …

Ultra-Low Dosages Of Novel Graphene Types Enhance The Rheological Properties And Buildability Of 3d Printed Binders, Sahil Surehali, Akshay Venkatachalam, Ranjith Divigalpitiya, Aditya Kumar, Narayanan Neithalath

Materials Science and Engineering Faculty Research & Creative Works

The use of graphene as a high-performance concrete additive is attractive; but, its cost and concerns about production scalability and dispersion efficiency in concrete are impediments to widespread use. This study explores the impact of ultra-low dosages (≤0.02 % by mass of binder) of two novel graphene types—fractal graphene (FG) and reactive graphene (RG)—produced through a cost-effective, environmentally friendly, and scalable process, on the rheological properties of 3D-printable concrete. Both FG and RG significantly enhance the dynamic and static yield stresses and viscoelastic properties of the binder, with RG-modified mixtures exhibiting slightly more pronounced enhancements due to the presence of …

Identification Of Authentic Gnss Signals In Time-Differenced Carrier-Phase Measurements With A Software-Defined Radio Receiver, Zhen Zhu, Sanjeev Gunawardena, Eric Vinande, Jason Pontious

Faculty Publications

The time-differenced carrier phase can be computed from measurements recorded by a multi-global navigation satellite system software-defined radio receiver such as PyChips, from which the user displacement and receiver clock drift can be solved. PyChips is able to simultaneously track authentic and inauthentic signals in separate channels, which makes it possible to observe both types of measurements with corresponding navigation data. A random sample consensus algorithm has been introduced to assess the consistency between the measurements and data. This algorithm successfully separated authentic channels from inauthentic channels when they are broadcast simultaneously.

Novel Respirometry Measurement And Comparison Of Monod Kinetic Constants And Methanogen Concentrations For 27 Full-Scale Anaerobic Bioreactors, Nicholas Benn, Antonio Martins, Daniel H. Zitomer

Civil and Environmental Engineering Faculty Research and Publications

Monod kinetic coefficient values (km and Ks) as well as methanogen concentrations (Xac and Xh2) for various anaerobic bioreactors are required to gain a deeper understanding of anaerobic biotechnology. However, there are no existing, practical methods to measure or estimate these parameters or variables in typical anaerobic digester biomass that contains mixed cultures with inert organic solids. Current measurement methods rely on pure cultures developed in the laboratory. In this work, a novel respirometric method was developed and used to determine methanogen Monod parameters and active biomass concentration for samples from 27 full-scale anaerobic reactors. Differences (one to three orders …

Journal 2, Russell Anderson

Distinguished Student Scholarship Collection

This journal documents an exercise science field experience in a multidisciplinary sports management workplace, highlighting observations across chiropractic medicine, physical therapy, and occupational therapy. The author reflects on professional behaviors, therapeutic interventions, and the impact of healthcare policies—particularly insurance constraints—on patient care. The journal also outlines personal goals for improving medical terminology and interdisciplinary communication, emphasizing the importance of precise language for clinical proficiency and professional development. [Abstract generated by AI.]

Researched Argument Paper Against Capital Punishment, Savannah Gross

Distinguished Student Scholarship Collection

This paper presents a researched argument against the use of capital punishment for homicide perpetrators. It critiques the death penalty on grounds of impracticality, high costs, risk of wrongful execution, lack of deterrent effect, and collateral harm to families and society. Drawing on empirical studies and ethical reasoning, the author argues that life imprisonment and rehabilitative alternatives are more just and effective responses to homicide. The work highlights the moral and systemic flaws of capital punishment and advocates for its abolition in favor of humane sentencing practices. [Abstract generated by AI.]

Development Of Nanopocket Membranes For The Isolation And Purification Of Extracellular Vesicles, Munther Alsudais

Theses

Extracellular vesicles (EVs) play a crucial role in intercellular communication and serve as significant biomarkers for various diseases. EVs carry biomolecules such as lipids, proteins, DNA, and RNA, which reflect the physiological state of their cells of origin, making them promising tools for non-invasive diagnostics and therapeutic applications. Effective isolation of EVs is essential for advancing scientific understanding of their biological roles and unlocking their clinical potential. Porous membranes have been widely used for the purification of various biological species from biological fluids. While membranes have prove highly effective for general size-based separation, recent innovations have focused on structurally refined …

Network And Tree-Based Approaches To Data-Driven Modeling Of Complex Climate Systems, Adam M. Giammarese

Theses

The guiding thread throughout this thesis work is data-driven modeling of Earth's climate. We investigate a variety of settings within the field of complex climate systems, such as gridded, high-resolution reanalysis data, lower-resolution climate indices, and incomplete paleoclimate records with missing values. We begin with reanalysis data of high spatial and temporal resolution, and use climate network analysis to uncover hidden trends in the data in regards to the Amazon rainforest and its changing role in the global climate system. We introduce a novel formulation of k-nearest neighbors climate networks to study changing trends at a local level, and apply …

Characterizing Tcap Set-Ups For Effective Separation On Hydrogen Isotope Species, James R. Hanby

Theses

Hydrogen isotope separation was investigated using a series of thermal cycling absorption process (TCAP) experiments. Pulse tests were conducted using deuterium injected into a protium flow over a range of superficial velocities, temperatures, particle sizes, and column diameters to quantify the efficiency of this process for a palladium on kieselguhr catalyst. The resulting response curves, obtained from residual gas analysis, were used to calculate the height equivalent to a theoretical plate (HETP) in each case. These values were then fit with van Deemter curves to illustrate the change in HETP over gas velocity. A strong positive correlation with temperature was …

Sequencing-Based Detection Of Measles In Wastewater: Texas, January 2025, Sara Javornik Cregeen, Michael J Tisza, Blake Hanson, Marissa Cook, Anil Surathu, Rebecca Schneider, Jingjing Wu, Kirstin Short, Kaavya Domakonda, Loren Hopkins, Matthew C Ross, Joseph F Petrosino, Jennifer Deegan, Lauren B Stadler, Eric Boerwinkle, Anthony Maresso

Center for Medical Ethics and Health Policy Staff Publications

Measles is a potentially deadly viral infection spread via respiratory droplets from infected individuals. Outbreaks occur when vaccine coverage drops below the threshold of herd, or community, immunity. Using a sequencing-based approach, we report the prospective (January 7, 2025) detection of measles in nucleic acid extracts from 2 wastewater treatment plants in Houston, Texas, with a population of more than 218 000 residents. The sequencing data from 2 samples contained 53 unique reads mapping to 11 different regions of the measles virus genome with a 99.4% match to genotype B3. Importantly, no detections were observed from 821 previous samples from …

Functional Assays In Drosophila Facilitate Classification Of Variants Of Uncertain Significance Associated With Rare Diseases, Shinya Yamamoto

Faculty, Staff and Students Publications

Individuals living with rare diseases often undergo a frustrating and expensive diagnostic odyssey. Clinical geneticists who analyze exome or genome sequencing data from rare disease patients often encounter a list of variants of uncertain significance (VUS) in known disease-causing genes or rare variants in genes of uncertain significance (GUS) that are difficult to interpret, even with the integration of the latest bioinformatic tools. In this Perspective, we review how studies using the fruit fly Drosophila melanogaster have facilitated rare disease diagnosis by uncovering the clinical relevance of GUS and classifying rare variants into specific allelic categories (loss-of-function or gain-of-function, Muller's …

Endothelium- And Fibroblast-Derived C-Type Natriuretic Peptide Prevents The Development And Progression Of Aortic Aneurysm, Reshma S Baliga, Jaspinder Singh Sanghera, M Taaha Syed, Kareemah Jaigirdar, Anmolpreet K Panesar, Janice C Tsui, Yanming Li, Hernan G Vasquez, Ying H Shen, Scott A Lemaire, Juliette Raffort, Ziad Mallat, Hong S Lu, Alan Daugherty, Adrian J Hobbs

Faculty, Staff and Students Publications

Background: Thoracic (TAA) and abdominal (AAA) aortic aneurysm are life-threatening diseases characterized by dilation, inflammation, and structural weakness; development of pharmacological therapies is desperately needed. CNP (C-type natriuretic peptide) plays a key role in vascular homeostasis, mediating vasodilator, anti-inflammatory, and antiatherogenic actions. Since such processes drive AA, we determined the role of endogenous CNP in offsetting pathogenesis.

Methods: Tissue from patients with AA was analyzed to determine the consequences on CNP signaling. Ascending and suprarenal aortic diameters were assessed at baseline and following Ang II (angiotensin II; 1.44 mg/kg per day) infusion in wild-type, endothelium-restricted (ecCNP-/-), fibroblast-restricted (fbCNP-/-), global CNP …

Chapter 3. Moroccan Arabic-Spanish Bilinguals’ Linguistic Profile And Their Perspectives And Experiences On Learning Standard Arabic, Ramsés Ortín, Pilar Garrido

Writing and Language Studies Faculty Publications

We surveyed a group of Moroccan Arabic-Spanish speakers in the Region of Murcia, Spain, to examine their linguistic profiles, their attitudes towards their native Arabic dialect, their motivations to learn Standard Arabic and their learning experience with Standard Arabic. We found varying degrees of dominance in this group along with fluctuating patterns of dominance, proficiency and language use according to age and onset of acquisition of Spanish. This group displayed generally positive attitudes towards their own dialect and their motivation to learn Arabic was related to their religious and cultural connections. Most of them indicated that they had engaged in …

Fall Prevention In Long-Term Care, Steven Zissler

All Doctor of Nursing Practice (DNP) Scholarly Projects

Problem: Falls among older adults residing in long-term care facilities continue to rise, resulting in injuries that contribute to adverse outcomes, a reduced quality of life, and increased healthcare costs. Despite existing safety interventions, falls persist, indicating a gap in effective, sustainable fall prevention strategies. Repeated failures to reduce falls among adults aged 65 years and older highlight the need for a structured, evidence-based approach aimed at addressing this critical patient safety issue.

Aim of the Project: The aim of this project was to reduce falls and fall-related injuries by 25% for older adults residing in a long-term care facility …

Improving Provider Documentation For Procedure Authorizations: A Nursing Perspective On Enhancing Outcomes And Compliance, Juli Legg

All Doctor of Nursing Practice (DNP) Scholarly Projects

Insurance denials resulting from non-standardized documentation and communication gaps in the prior authorization process adversely impacted financial performance and patient care within the electrophysiology (EP) department of a large Midwest academic medical center. High denial rates for costly procedures revealed a need for improved alignment with payer medical necessity criteria. This quality improvement (QI) project aimed to enhance provider documentation, reduce denials, improve care delivery, and increase revenue by implementing standardized documentation templates. A review of the literature supports that standardized documentation and clinical decision support tools enhance consistency, reduce errors, and improve prior authorization success rates. Guided by the …

Implementing An Evidence-Based Transitional Care Toolkit To Reduce Postpartum Readmissions In Women With Chronic Conditions, Cassidy La Fleur

All Doctor of Nursing Practice (DNP) Scholarly Projects

Problem: Postpartum women with preexisting chronic conditions are at increased risk of hospital readmissions due to fragmented care transitions and poor follow-up adherence. At the project site, the 30-day postpartum readmission rate was 10%, exceeding the national benchmark of 7.15%. Gaps in standardized discharge planning and limited patient engagement were identified as contributing factors.

Aim of the Project: The aim of this quality improvement (QI) project was to reduce 30-day postpartum readmissions in women with chronic health conditions by implementing an evidence-based transitional care toolkit within a women’s outpatient clinic.

Review of the Evidence: Evidence supports the use of structured, …

Improving Depression Screening For Young Adults In Outpatient Settings, Addie Smith

All Doctor of Nursing Practice (DNP) Scholarly Projects

Problem: Depression among young adults aged 25 to 35 years in the United States has been among the second highest at 19.9%. Depression underdiagnosis stems from many patient-level causes, including a lack of standardized screening, inadequate provider education, and stigma of mental illness. Untreated depression results in low quality of life, comorbidities, suicidality, and socioeconomic issues.

Aim of the Project: The aim of this project was to address the gap in practice by implementing a standardized screening process for young adults to enhance diagnoses and increase screening rates.

Review of the Evidence: A comprehensive review of the evidence …

Improving Colorectal Cancer Screening Referrals In A Rural Health Clinic, Kysha Mcbee

All Doctor of Nursing Practice (DNP) Scholarly Projects

Problem: Colorectal cancer is the second leading cause of cancer death in the United States. Preventive screening for colorectal cancer has been associated with early detection and improved 5-year survival rates. The referral rates for colorectal cancer screening at the practicum site were 17.7%, well below the national benchmarks of 71.8%.

Aim of the Project: The aim of this project was to increase the screening referral rates in adults aged 45 to 75 years by 50% over a ten-week period by implementing an evidence-based toolkit.

Review of the Evidence: Literature review highlighted barriers to colorectal cancer screening, such as knowledge …

Optimizing Pressure Injury Prevention: Implementation Of The Sskin Bundle In Acute Care, Joycelyn Mccall

All Doctor of Nursing Practice (DNP) Scholarly Projects

Problem: Hospital-acquired pressure injuries (HAPIs) contribute to increased morbidity, extended hospitals stay, and significant healthcare costs. At the project site in northwest, Indiana, HAPI rates averaged 6.29%, which significantly higher than the national benchmark of 2.24%. Inconsistencies in documentation, a lack of standardized preventive practices, and variable staff engagement contributed to these increased rates. Despite the use of the Braden Scale, staff inconsistently implemented preventive interventions.

Aim of the Project: The aim of the project is to reduce HAPI incidence by 30% over 10 weeks by implementing the surface, skin inspection, keep moving, incontinence/moisture management, and nutrition (SSKIN) bundle and …

Implementing The Patient Health Questionnaire-2 To Improve Referral Rates To Mental Healthcare Through Routine Depression Screening, Kelly Murakata

All Doctor of Nursing Practice (DNP) Scholarly Projects

Problem: Primary care settings often encounter patients with depression symptoms, characterized by feelings of sadness, lack of interest in activities, and functional impairment, impacting quality of life. At the project site, the PHQ-9 was only used during annual or new patient visits, resulting in low screening rates of 12% and a 33% referral rate. The lack of routine screening led to missed opportunities for mental health referrals and detection of depression.

Aim of the Project: The aim of the project was to increase mental health referral rates through early identification of depression symptoms by implementing routine PHQ-2 screens.

Review of …

Evidence-Based Pain Management Bundle For Pediatric Postoperative Orthopedic Patients, Samantha Firmstone

All Doctor of Nursing Practice (DNP) Scholarly Projects

Problem: Postoperative pain management in pediatric orthopedic patients is often inconsistent due to variability in provider practices and a lack of standardized protocols. At a Central Texas pediatric orthopedic clinic, all patients received opioid prescriptions post-knee surgery regardless of procedure severity, leading to frequent caregiver calls for clarification. This practice revealed a critical gap in preoperative education and multimodal pain management strategies, contributing to patient safety concerns and increased clinic workload.

Aim of the Project: The primary aim of the project was to improve pain control, reduce opioid reliance, and decrease postoperative pain-related follow-up calls by implementing a standardized, evidence-based …

Reducing Emergency Department Length Of Stay, Chelsea Zigan

All Doctor of Nursing Practice (DNP) Scholarly Projects

Problem: Rising Emergency Department (ED) volumes and Registered Nurse (RN) shortages have led to overcrowding, delayed care, and inefficiencies. In 2023, patient visits exceeded budget projections by 14% for six months. From July to December 2024, discharged patients’ average ED length of stay (LOS) exceeded the three-hour target by over one hour, left without being seen (LWOBS) rates surpassed the 1% benchmark for five months, and diversion hours increased, restricting ambulance admissions. These issues strained nursing resources, reduced care quality, and heightened risks of complications and financial losses, emphasizing the need for a redesigned care model to optimize staff roles …

Improving Hospital Throughput Through Flash Rounds And Standardized Discharge Readiness Assessments, Erin D. Dobda

All Doctor of Nursing Practice (DNP) Scholarly Projects

• Problem: The target hospital faced serious throughput challenges, with emergency department overcrowding and discharge inefficiencies impacting patient outcomes and organizational performance. Discharge order to depart times exceeded the 90-minute benchmark, averaging 154 minutes, while 41.2% of patients exceeded the geometric mean length of stay (GMLOS) target of 40.17%. Gaps included inconsistent discharge planning, poor communication, and limited follow-through on barriers.
• Aim of the Project: The project aimed to improve hospital throughput by reducing GMLOS and discharge order to depart times on Unit A. This was achieved through implementation of proactive, evidence-based interventions to streamline discharges, reduce delays, and support safe …

Improving Medication Nonadherence In Clients With Attention Deficit Hyperactivity Disorder Using Medication Reminder Applications, Christian Durand

All Doctor of Nursing Practice (DNP) Scholarly Projects

At an outpatient clinic in Southern California, a 77% medication adherence rate was observed in August 2024 among clients with ADHD. Medication nonadherence in ADHD clients may result in difficulty reaching therapeutic levels, leading to adverse outcomes, such as family disruptions, substance addiction, injuries, criminal occurrences, and even suicide. The project aims to reduce the number of ADHD clients who are noncompliant with their medications and surpass the national benchmark of 80% medication adherence. Evidence has suggested that MRAs may improve medication nonadherence among ADHD clients. Current research has supported the use of MRAs for various chronic diseases including diabetes …

Reducing Catheter-Associated Urinary Tract Infections In The Intensive Care Unit, Rosa Shiffman

All Doctor of Nursing Practice (DNP) Scholarly Projects

Problem: Catheter-associated urinary tract infections (CAUTIs) remain among the most common healthcare-associated infections in intensive care units (ICUs), contributing to increased morbidity, prolonged hospital stays, and elevated healthcare costs. Despite established prevention guidelines, inconsistent practices in catheter removal and gaps in daily necessity reviews persist. At the project site’s 24-bed ICU, the CAUTI rate was 1.9 per 1000 catheter days, which exceeds the national benchmark of 1.0. Gaps in consistent assessment of necessity and delays in removal contributed to an elevated infection risk.

Aim of the Project: This project aimed to reduce CAUTI rates in the ICU through evidence-based interventions …

Patient-Centered Approach To Decrease Length Of Stay, Erika Beck

All Doctor of Nursing Practice (DNP) Scholarly Projects

Problem: Unmet social needs contribute to hospital readmissions and extended inpatient stays, placing strain on care coordination and hospital throughput. Social Determinants of Health (SDOH), such as housing instability, lack of transportation, or food insecurity, are often unaddressed in clinical workflows. At the project site, a gap in effectively integrating SDOH into the discharge planning process led to delayed discharges and increased length of stay (LOS). Additionally, 41.20% exceeded the Geometric Mean Length of Stay (GMLOS), surpassing the organizational benchmark of 40.17%. Gaps in standardized assessment and communication of SDOH data limited the ability to plan timely discharges and connect …

Enhancing Diabetes Care In Adult Patients With Type 2 Diabetes In An Outpatient Setting, Osayanmo Ojo

All Doctor of Nursing Practice (DNP) Scholarly Projects

Type 2 diabetes mellitus (T2DM) is a prevalent chronic condition associated with significant morbidity, particularly among underserved populations. This Doctor of Nursing Practice (DNP) quality improvement (QI) project aimed to improve diabetes care among adult patients with poorly controlled T2DM (A1C > 9%) in an outpatient primary care clinic by increasing referrals to the Diabetes Self-Management Education (DSME) program. Guided by the Plan-Do-Study-Act (PDSA) cycle and the OhioHealth Change Management (OHCM) model, the project implemented structured interventions including standardized DSME referral workflows, electronic health record (EHR) prompts, provider education, and culturally tailored communication strategies.

The 12-week initiative targeted 68 eligible patients. …