Digital Commons Network^™

Characterization Of Aerosols Produced By Common Orthodontic Procedures, Anna R. Schoettger

Theses & Dissertations

Introduction: Aerosols can harbor active viruses, including SARS-CoV-2, making it vital that clinical protocols implemented in the orthodontic office be based on which procedures produce aerosols. Research shows that various procedures in the field of orthodontics generate aerosols, however, there is a lack of consensus as to which procedures should be deemed aerosol-generating procedures (AGPs). The current study aimed to better understand aerosol production of various orthodontic procedures. Methods: Orthodontic procedures were performed in a closed-room dental operatory on acrylic teeth mounted onto a dental manikin. Procedures performed included: debonding, bonding, and repositioning of one bracket. Variations introduced included: high-speed …

Alignment Of Cervical Vertebrae And Reliability Of Cephalometric Measurements, Ece Agirgol

Theses & Dissertations

Cervical vertebrae are in close relationship with dentofacial structures due to their anatomical position. In previous studies, the inclination of cervical vertebrae was measured by mostly Nasion-Sella line as the reference plane to evaluate the relationship with dentofacial structures.

The aim of this study is to observe the correlation between cervical vertebrae inclination and lateral cephalometric measurements. 124 lateral cephalograms taken in Natural Head Position of subjects over 18 years of age were traced with Dolphin Imaging Software 11.95 Premium. Cervical vertebrae inclination was measured by using the lines passing from landmarks on second, third and forth cervical vertebrae. Correlation …

Evaluation Of Stratified Antibiograms For Use In Laboratory And Antimicrobial Stewardship, Linsey Donner

Theses & Dissertations

Antibiograms are critical for choosing empiric antimicrobial therapy. Cumulative antibiograms, which aggregate susceptibility data, can mask differences within specific patient subsets or clinical syndromes. This dissertation was done to determine if antibiotic susceptibilities showed substantial differences when comparing stratified antibiograms to cumulative antibiograms.

Antibiotic susceptibility data was retrospectively obtained from Nebraska Medicine January 1, 2017 – December 31, 2019 for Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, Staphylococcus aureus, and Enterococcus faecalis. The University of Nebraska Medical Center’s web antibiogram clinical decision support tool was used to export the data. Bacteria-antibiotic susceptibility rates of stratified antibiograms …

Post-Transplant Hepatic Graft Fibrosis In Pediatric Liver-Inclusive Transplant Recipients, Hanh D. Vo

Theses & Dissertations

Hepatic graft fibrosis is a common histologic finding following pediatric liver transplant (LT) that may affect the long-term graft outcome. Hence, it is essential to identify hepatic graft fibrosis at a stage where fibrosis is not yet clinically apparent but has the potential for progression to initiate appropriate intervention and prevent its progression. Liver biopsy is the gold standard for fibrosis staging, but it is invasive, requires general anesthesia in children, and has potential complications. Our long-term goal is to implement non-invasive tests to assess and monitor the progression of hepatic graft fibrosis in liver-inclusive transplant children. The work presented …

Delivery Of Sirna With Drugs Targeting Polyamine Metabolism As Combinational Cancer Treatment, Ao Yu

Theses & Dissertations

Cancer has been a major public health issue worldwide for years and is the second leading cause of death in the United States. Important barrier must be broken to extend the life expectancy in every country. The standard care for cancer causes severe side effects which affects patients’ physical health and quality of life. Polyamines are highly related with the cell proliferation and apoptosis. Dysregulated polyamine metabolism in cancer leads to increased polyamine concentration in neoplastic cells. Thus, polyamine metabolism for cancer therapy can be an intriguing target. However, the heterogeneity affecting key cancer pathways poses significant challenges for effective …

Utility Of S100a12 As An Early Biomarker In Patients With St-Segment Elevation Myocardial Infarction, Xiaolin Zhang, Minghui Cheng, Naijing Gao, Yi Li, Chenghui Yan, Xiaoxiang Tian, Dan Liu, Miaohan Qiu, Xiaozeng Wang, Bo Luan, Jie Deng, Shouli Wang, Hongyan Tian, Geng Wang, Xin-Liang Ma, Gregg W Stone, Yaling Han

Department of Emergency Medicine Faculty Papers

Importance: S100A12 is a calcium binding protein which is involved in inflammation and progression of atherosclerosis.

Objective: We sought to investigate the utility of S100A12 as a biomarker for the early diagnosis and prognostication of patients presenting with ST-segment elevation myocardial infarction (STEMI).

Design, Setting, and Participants: S100A12 was measured in 1023 patients presenting to the emergency department with acute chest pain between June 2012 and November 2015. An independent cohort of 398 patients enrolled at 3 different hospitals served as a validation cohort.

Main Outcomes and Measures: The primary clinical endpoint of interest was major adverse cardiac and cerebral …

Surgical Site Infections And Hand Hygiene Discharge Teaching, Jesus A. Rodriguez Hernandez

Master's Projects and Capstones

Problem: During the span of a nine-month period, the PACU of a perioperative unit in an acute care hospital in the East Bay Area saw an incidence of 13 surgical site infections (SSIs). SSIs have been associated with negative patient health outcomes, diminished quality of life, and increasing healthcare costs.

Context: The PACU consisted of 20 beds and a competent staff of registered nurses, medical assistants, patient care technicians (PCTs), and management staff. It served mostly adults from diverse backgrounds receiving elective and emergent surgeries.

Intervention: A Standardized 3-Step Hand Hygiene Discharge Teaching model with nurse self-audits for every surgical …

Mobility Matters: Improving Average Maximum Mobility (Amm) Scores In A Medical-Surgical Telemetry Unit, Marlon Macalanda De Vera

Master's Projects and Capstones

Problem: There has been a national crisis of immobility in hospitalized patients. Of the 1 in 3 hospitalized patients who develop a new onset of physical disability, 50% of them will not return to normal function (Holroyd-Leduc et al., 2019). The impact of immobility could result in increased hospital costs, longer lengths of stay, higher events related to hospital-acquired pneumonia (HAP), falls, and readmission rates (Growdon et al., 2017; Larsen et al., 2019).

Context: Microsystem assessment was conducted to identify a quality performance gap. When compared to the regional Average Maximum Mobility (AMM) benchmark score, the patients’ mobility scores …

Preventing Maternal Falls, Blair Burkhart

Master's Projects and Capstones

Patient falls are unfortunate events in healthcare that are an essential quality improvement focus during patients’ hospital stays. At Hospital X, a private institution located in the suburbs of a large city, there had been 23 maternal falls within the last three years. This increase in maternal fall rate puts this hospital’s maternity unit above the average of other hospital’s fall rates according to the National Database of Nursing Quality Indicators. This quality improvement project aimed to reduce the rate of maternal falls on postpartum units through various forms of staff education. Education included Morse Fall Scale scoring, Sara Stedy …

Reducing Postpartum Maternal Falls: A Quality Improvement Project, Sarah L. Iroz

Master's Projects and Capstones

Falls are an unfortunate, common occurrence in the healthcare system and are often not thought to be a problem in the obstetrics population. Key stakeholders in a Northern California hospital brought the issue of maternal falls to leaders of the quality improvement team on the maternity unit. In the last three years, there have been 23 falls on the maternity floor, making their fall rate above the national average. It is the purpose of this project to aid the quality improvement team in reducing postpartum maternal falls over the next three years. After conducting a unit assessment, performing a literature …

Variedades. Second Edition. Intermediate/ Advanced Spanish Conversation, Carmela V. Mattza

Faculty Publications

VARIEDADES. Second Edition. Intermediate/ Advanced Spanish Conversation is a textbook for the student at the intermediate / advanced intermediate level. Through audiovisual activities, the student is expected to put their previous knowledge into practice and improve their ability to understand, write, listen, and speak in Spanish. VARIEDADES offers communicative activities that can be easily adapted into courses of different levels. In addition, it offers an appendix of activities with films and a Spanish grammar section that by subject directs the student to electronic databases that are freely accessible or are part of the Open Access platform.

Relationships Between Dress And Gender Identity: Lgbtqia+, Alyssa Dana Adomaitis, Diana Saiki, Kim K. P. Johnson, Rafi Sahanoor, Arsha Attique

Publications and Research

No abstract provided.

The Importance Of Social Support Networks On Mental Health Status Of Custodial Grandparents, Deborah Whitley, Youjung Lee, Yanfeng Xu Ph.D.

Faculty and Staff Publications

This symposium presents a collection of papers that examine the concept of social support and its effect on custodial grandparents’ (CG) mental health state. Each paper explores a different perspective about grandparents’ access to and/or use of social support networks and mental health outcomes; several papers view social support within the context of the COVID-19 pandemic. Nadorff and colleagues explore social support by middle-generation family members and its effects on grandparents’ stress and depressive symptoms. Musil and colleagues report on psychosocial and social support predictors of self-appraised healthcare and financial security by CG during the Covid-19 pandemic. Whitley and Kelley …

The Ecology Of Mental Health And The Impact Of Barriers On Mental Health Service Utilization, Alisha Aggarwal

Theses & Dissertations

Mental health has emerged as a major public health concern in recent times with several disparities and barriers related to adequate health service utilization. Different age groups experience diverse symptoms and face distinct barriers in accessing and utilizing healthcare. Policies like Mental Health Parity and Addiction Equity Act and the Patient Protection and Affordable Care Act were launched to improve insurance coverage and delivery of mental health services. However, a large gap of unmet needs exists for adequate mental health service utilization in the country. This dissertation aims to describe the financial and non-financial barriers to mental health service utilization …

Factors Associated With Omani’S Schoolteachers’ Reporting Behavior Of Suspected Cases Of Child Abuse And Neglect, Zeinab N. Alazri

Theses & Dissertations

Child abuse and neglect is a global problem that can result in severe negative consequences for victims and their societies. Numerous initiatives have been launched by the United Nations Children's Fund (UNICEF) to combat this problem. Recently, Sultanate Oman, an Arab country, has mandated schoolteachers to report suspected abuse and neglect cases to comply with UNICEF's recommendations. As schoolteachers spend a great deal of their time with children, they are in a good position to recognize and report suspected abuse and neglect cases so the victims can get the needed help and treatment. There is a dearth of information about …

Development Of A Muc16-Targeted Near-Infrared Antibody Probe For Fluorescence-Guided Surgery Of Pancreatic Cancer, Madeline T. Olson

Theses & Dissertations

Pancreatic cancer (PDAC) is an extremely lethal disease with an overall survival rate of 10%. Surgery remains the only potentially curative treatment option, but resections are complicated by infiltrative disease, proximity of critical vasculature, peritumoral inflammation, and dense stroma. Surgeons are limited to tactile and visual cues to differentiate cancerous tissue from normal tissue. Furthermore, translating preoperative images to the intraoperative setting poses additional challenges for tumor detection, and can result in undetected and unresected lesions. Thus, PDAC has high rates of incomplete resections, and subsequently, disease recurrence. Fluorescence-guided surgery (FGS) has emerged as a method to improve intraoperative detection …

The Rotator Cuff Tendon-To-Bone Interface: Maturation, Aging, And 3d Bioprinting For Regeneration, Xiping Jiang

Theses & Dissertations

Rotator cuff tendon injuries often occur at the tendon-to-bone interface (i.e., enthesis) area with a high prevalence for the elderly population. In addition, regeneration of the gradient structure of the enthesis is still a significant clinical challenge. Our studies aim to identify the histological, molecular, and biomechanical alterations of the rotator cuff enthesis with maturation and aging, and develop a novel therapeutic method using three-dimensional (3D) bioprinting technique to regenerate a functional enthesis. Striking variations of the entheses were observed both histologically and biomechanically during the maturation process. The histological features did not show many differences at the insertion site …

Glad To Be Out. I Was Running Out Of Womb: A Study Of Omega-6 And Omega-3 Fatty Acid Metabolites At Delivery And Their Relationship To Infant Growth, Prematurity, And Admission To The Neonatal Intensive Care Unit, Maranda Thompson

Theses & Dissertations

Normal pregnancy relies on inflammation for implantation, placentation, and parturition, but uncontrolled it can lead to poor infant outcomes. Maternal diet is one modifiable factor that can impact inflammation. Omega-3 and omega-6 fatty acids have been shown to be metabolized into bioactive metabolites that effect inflammation. The presence and importance of these metabolites at the time of delivery are not well understood. Therefore, the purpose of this dissertation was to first quantify omega-3 and omega-6 metabolites in maternal plasma, cord plasma, and placental tissue. Then the relationships between metabolites and infant outcomes, including birth weight percentile, length percentile, head circumferences …

Integrative Analysis Of Multi-Omics Kinome Data And Virtual Screening Of Identified Targets With Pan-Cancer Application, Siddesh Southekal

Theses & Dissertations

Cancer is a heterogeneous disease characterized by the uncontrolled growth and dissemination of abnormal cells. Unfortunately, it is also challenging to treat due to the heterogeneous nature of the tumors and the lack of known drugs that are effective against all tumor subpopulations.

The human protein kinases represent an essential and diverse family of enzymes and are often dysregulated in cancer. The human kinome comprises only around 2% of all coding genes of the human genome but phosphorylates about 30% of cellular proteins critical for regulating various biological processes such as cell proliferation, cell cycle progression, apoptosis, motility, growth, differentiation, …

Understanding The Impact Of Chlamydia Trachomatis Infection On Host Vesicular Trafficking, Lisa M. Jorgenson

Theses & Dissertations

Chlamydia trachomatis is a highly evolved obligate intracellular bacterial pathogen. During infection, organisms reside within a host epithelial cell in a membrane-bound vacuole called the inclusion. The inclusion membrane contains both pathogen and host components, including unique chlamydial type III effector proteins called Incs and host lipids like cholesterol and sphingomyelin. The inclusion membrane serves as the main barrier between the bacteria and the host cytosol, and thus, functions as the platform supporting host-chlamydial interactions. Via the inclusion membrane, C. trachomatis intercepts components of host vesicular traffic including many host SNARE proteins, which are a conserved family of eukaryotic proteins …

Molecular Investigation Into The Biologic And Prognostic Elements Of Peripheral T-Cell Lymphoma With Regulators Of Tumor Microenvironment Signaling Explored In Model Systems, Tyler Herek

Theses & Dissertations

Peripheral T-cell lymphoma (PTCL) is heterogenous group of mature T-cell neoplasms characterized by distinctive transcriptional and genetic lesions. Herein, we investigated DNMT3A mutations in angioimmunoblastic T-cell lymphoma (AITL, n = 176) and novel molecular subtypes (i.e., PTCL-GATA3, n = 61 and PTCL-TBX21, n = 80) within PTCL- NOS and observed significant biological and prognostic differences associated with DNMT3A mutations. DNMT3A-mutated PTCL-TBX21 cases showed inferior overall survival (OS; p < 0.005), with DNMT3A mutations (DNMT3A-MT) skewed toward the methyltransferase domain and in the dimerization domain (S881-R887). Transcriptional profiling demonstrated significant enrichment of activated CD8⁺ T-cell cytotoxic gene signatures in the tumor microenvironment of DNMT3A-MT PTCL-TBX21 cases. Genome-wide methylation analysis of DNMT3A-R882/Q886 versus wild-type in PTCL-TBX21 cases demonstrated hypomethylation in target genes regulating T-cytotoxic genes, TCR …

Humanized Mice For Brain Infection Of Emerging Viruses, Edward Makarov

Theses & Dissertations

Studies on the pathogenesis of emerging viruses that present a global threat are critical for pathogen classification and therapeutic development. Humanized mice enable investigation of viral pathogens, including Human immunodeficiency virus (HIV-1), Zika virus (ZIKV), Coronavirus 2 (SARS-CoV-2), and Dengue virus (DENV), offering an advanced understanding into the mechanisms of viral perseverance in its natural human host cells and for therapeutic discovery. Realizing the diverse dynamics of various viral infections with the capacity to establish an innovative acuity for therapeutics and mechanics when utilizing humanized mice contributes a formerly inaccessible insight into human-specific viral pathogenesis and treatment. We recently developed …

Immunological Factors Associated With Siv/ Shiv Persistence In Diverse Tissue Niches, Omalla A. Olwenyi

Theses & Dissertations

The significant challenge towards a successful HIV cure lies in eradicating persistent viral reservoirs across diverse tissue niches. As a result, HIV-infected individuals have to resort to lifelong antiretroviral therapy. Recent news of supposed HIV eradication in a second patient has further re-invigorated the fields of HIV cure. However, a few barriers remain, such as the lack of currently available assays to accurately quantify viral reservoirs, limited information on cellular factors associated with persistence, and varied dynamics of the viral reservoir in various body compartments. Lastly, HIV-infected individuals live different lifestyles stemming from comorbid substance abuse including consumption of morphine, …

The Contribution Of Bioethics To Home Healthcare (Hhc) In Saudi Arabia, Saeed Alghamdi

Electronic Theses and Dissertations

This dissertation examines the contribution of bioethics to Home Healthcare (HHC) In Saudi Arabia (SA). Through exploring the critical bioethical issues that have influenced the implementation of home health care, the dissertation highlights the significance of incorporating bioethics in home health care. Organizational ethics has led to the regulation of healthcare professionals, patients, and the stakeholders within clinical care settings. Healthcare organizations and other stakeholders, such as global health bodies, should formulate laws and policies that promote bioethics in contemporary healthcare. The Kingdom of Saudi Arabia, through the Ministry of Health, should promote the adoption of home health care services …

Ud In The News Dec. 10-17, University Of Dayton

News Releases

The Baltimore Sun, Law360 and Jewish News of Northern California interviewed Charles Russo, director of the program in educational leadership and research professor of law, about a variety of legal topics facing schools. Slate talked to Vince Miller for its story "Santa Claus: Why do Italian priests have a vendetta against Father Christmas?" Associate Professor of Accounting Sarah Webber contributed a piece to The CPA Journal about the Cohan rule, which addresses the situation when a taxpayer lacks documentation to support items on a tax return.

Does Speech-To-Text Assistive Technology Paired With Graphic Organizers Improve The Written Expression Of Students With Traumatic Brain Injuries?, Kayla Cuifolo

Electronic Theses and Dissertations

A traumatic brain injury (TBI) can range from mild to severe and can cause debilitating outcomes that require children to need specialized medical or educational services post-injury. Outcomes vary and are dependent on the location of injury, age, severity, and environmental factors. Some common deficits that happen as a result of a brain injury are fine motor and executive functioning skill difficulties. Fine motor and executive functioning skills are an important component of written expression. Therefore, this current study utilized a brief experimental analysis in order to determine the effects that speech-to-text assistive technology along with a graphic organizer has …

The Lived Experiences Of Self-Concealment Among Lgbq+ Counselors In The Workplace, Richard Charette Ii

Electronic Theses and Dissertations

This study sought to unearth the narratives of LGBQ+ counselors’ experiences of self-concealment in the workplace. Self-concealment was an identity management strategy that was defined as an active, and sometimes persistent effort to conceal LGBQ+ identity. Self-concealment of affectional identity was well researched in workplace contexts, however only one study existing study examined self-concealment among LGBQ+ counselors. In that previous qualitative inquiry, Jeffery and Tweed (2014) called for further exploration of self-concealment among LGBQ+ counselors when self-concealment emerged as a surprising finding.

The phenomenon of self-concealment was under-researched in counseling but has been extensively conceptualized as both a developmental stage …

Loneliness, Interpersonal Goals, Life Satisfaction, And Subjective Well-Being In Older Adults, Francesca C. Ezeokonkwo

Electronic Theses and Dissertations

Background: Loneliness is detrimental to health and is linked to numerous physiological and psychological problems. People across the age spectrum can be affected by loneliness at one point or another in their lives; however, older adults are disproportionally affected.

Aims: This study investigated the effect of interpersonal goals (compassionate and self-image goals), life satisfaction, and subjective well-being on loneliness in older adults and the influence of demographics and social support. The Ecosystem-Egosystem Theory of Social Motivation served as the theoretical framework.

Design and Method: This descriptive cross-sectional correlational study used the 2016 Health and Retirement Study. Participants were 65 years …

Identifying And Knocking Out Non-Visual Opsins In The Optic Tectum Of Zebrafish Larvae, Sarah Jarrett

Undergraduate Honors Theses

Deep brain photoreceptors (DBPs) are non-visual photoreceptors found in the brains of non-mammalian vertebrates like zebrafish. While using optogenetic techniques in our lab to photo-activate the ear (by expressing the light-gated channel: channelrhodopsin) in efforts of identifying optic tectum (OT) neurons that respond to and integrate auditory and visual stimuli, we found that violet light was able to elicit OT neuronal activity. OT activity was also detected in cases when visual and auditory stimulation was not possible due to removal of the eyes and absence of the exogenously expressed channelrhodopsin, respectively. Analyzing OT single-cell sequencing data of 7day post fertilization …

Motivated2move: Icu Liberation And Early Progressive Mobility In Ventilated Patients, Leslie S. Bigler

Master's Projects and Capstones

The Motivated2Move: ICU Liberation and Early Progressive Mobility in Ventilated Patients project was implemented in a 24-bed intensive care unit (ICU) in a 241-bed general care, stroke certified not-for-profit community hospital in northern California. The primary purpose of this project was to educate the nurses on the structure and implementation of the Society of Critical Care Medicine’s evidence-based ICU Liberation (ABCDEF) Bundle (Society of Critical Care Medicine, n.d.). A secondary purpose of this project was to coordinate an early progressive exercise and mobility protocol for all ventilated patients. The primary goal of the project is 100% compliance with the ICU …