Digital Commons Network^™

Spatial Hearing In Simulated Reverberant Classroom Environments, Gabriel Seth Evan Weeldreyer

Durham School of Architectural Engineering and Construction: Dissertations, Theses, and Student Research

Spatial hearing provides access to auditory spatial cues that promote speech perception in noisy listening situations. However, reverberation degrades auditory spatial cues and limits listeners’ ability to utilize these cues for segregating target speech from competing babble. Hence, spatial unmasking—an intelligibility benefit from a spatial separation between a target and masker—is reduced in reverberant environments as compared to free field. This work tests the hypothesis that interaural decorrelation, the result of increasing reverberation, will broaden the perceived auditory source width with a cascading effect of reduced auditory spatial acuity and subsequently poorer spatial unmasking. To understand the perceptual consequences of …

Breaking The Rule Of Silence: Childbirth And Gendered Power In Efuru And The Joys Of Motherhood, Sunday Elliott Uguru

Department of English: Dissertations, Theses, and Student Research

This study examines the thematic preoccupation of childbirth in the formative period of feminist discourse in African literature through a critical study of selected novels of Igbo women of southeastern Nigeria. The novels studied represent the earliest published African texts in English by women. The period under focus falls within the emerging stage of Nigerian literary tradition in its written form with a dominant presence of men. This study investigates the women novelists' perspective toward the failure of male authored works to represent women's childbirth experience. Through a critical reading of Flora Nwapa's Efuru and Buchi Emecheta's The Joys of …

Reframing Addiction As A Coping Response: A Needed Shift In Modern Public Health Paradigms, Anthony King

UNLV Theses, Dissertations, Professional Papers, and Capstones

What are the primary risk factors that compel one person towards addiction and not another? After decades of research, there is still no clear consensus. Some experts say addiction is a brain disease; others say it is a willful act, or even an outright crime. Nevertheless, the three research studies contained within this dissertation suggest an alternative, more parsimonious public-health-centered framework for viewing addictive behavioral patterns: as a biopsychosocial coping strategy for past and present stressors. In Study 1, this idea was examined by evaluating how symptoms of posttraumatic stress disorder (PTSD) were associated with problem gambling severity, different gambling …

Effect Of Asynchronous Virtual Interviews On Ethnic Minority Matriculation Into A Doctor Of Physical Therapy Program, Conner Clark, Nanea Lagasca, Gladys Miller, Jasmine Puspos

UNLV Theses, Dissertations, Professional Papers, and Capstones

Purpose/Methods: This study examines the impact of the use of asynchronous virtual interviews (AVIs) in the admissions process of the Doctor of Physical Therapy (DPT) program at the University of Nevada, Las Vegas (UNLV). This research aims to examine racial and ethnic subgroup differences in AVI scores, evaluate the influence of AVIs on applicant scores in the admissions process, and assess the AVI inter-rater reliability among faculty evaluators using data from the 2019-2022 admissions cycles.

Results: Significant differences were found in AVI scores among racial and ethnic groups, with Black applicants scoring highest and Asian applicants scoring lowest. Additionally, inclusion …

Cost Saving And Resource Limited Public Health Interventions In Southeast Asia, Amanda Blackwelder

Electronic Theses and Dissertations

Background: Public health interventions are any activity with the objective of improving human health such as preventing or curing disease, reducing the severity or duration of a disease, or assisting in regaining function after a disease or injury. These interventions are known to be impactful; however, those living with the highest burden of disease such as individuals in low- and middle-income countries have limited money and resources to successfully implement these interventions. Southeast Asian countries are among some of the middle-income countries effected by the lack of affordable interventions. The aims of this study were to assess cost saving and …

Reproducibility Of Maine Ongoing Outreach Simulation Education (Moose) Program In Level I Rural Delivery Hospitals, Allison Zanno, Jeffrey Holmes, Micheline Chipman, Anya K. Cutler, Leah M. Seften, Mary Ottolini, Alexa Craig, Leah Mallory, Misty Melendi

Costas T. Lambrew Research Retreat 2024

Introduction

• Simulation provides an opportunity to practice neonatal resuscitation program (NRP®) guidelines with high acuity, low occurrence events

• Rural hospitals with low birth volumes have infrequent opportunities to maintain skills needed to adequately perform neonatal resuscitation

• With limited clinical opportunities, it is essential to provide ongoing training and education that allow teams to practice these skills

• Training environment includes a facilitated debrief allowing for feedback on performance and areas of improvement

Vol 4 May '24 Full Issue, Donna L. Williams

Journal of the Louisiana Public Health Association

No abstract provided.

Assessing Covid-19 Deaths By Occupation And Race: Louisiana 2020-2021, Anna Reilly, Brittany Babin, Rashanda Littles, Susanne Straif-Bourgeois

Journal of the Louisiana Public Health Association

Background: The COVID-19 pandemic underscored significant health disparities, with social determinants such as living conditions and occupation amplifying the risk for severe outcomes in Black residents. This study examines the intersection of occupation, race, and COVID-19 mortality among Louisiana workers in 2020 and 2021, emphasizing the importance of integrating work-related information into public health surveillance. Methods: Occupation and race were collected from the death certificates of Louisiana resident workforce participants aged 18-70 years with COVID-19 listed as a cause of death for 2020 and 2021. COVID-19 mortality rates per 100,000 workers were calculated and compared using rate ratios for occupational …

Development Of A National Core Indicators Dashboard Of Long-Term Services And Supports Outcomes For Individuals With Intellectual And Developmental Disabilities, Rhonda Haitz

Capstone Experience: Master of Public Health

The National Core Indicators (NCI) surveys are conducted annually across the United States, including Nebraska. Individuals with intellectual and developmental disabilities and/or their guardians are surveyed to learn more about their experiences and the quality of their services and lives (National Core Indicators- IDD, 2023). However, the data is only useful when understood and applied to make informed decisions to improve the lives of those with intellectual and developmental disabilities (McDonald et al., 2013). This project designed and developed two data dashboards for the state of Nebraska that publicly track, analyze and display the NCI survey results. The In-Person Survey …

Key Variants Via The Alzheimer's Disease Sequencing Project Whole Genome Sequence Data, Yanbing Wang, Chloé Sarnowski, Honghuang Lin, Achilleas N Pitsillides, Nancy L Heard-Costa, Seung Hoan Choi, Dongyu Wang, Joshua C Bis, Elizabeth E Blue, Eric Boerwinkle, Philip L De Jager, Myriam Fornage, Ellen M Wijsman, Sudha Seshadri, Josée Dupuis, Gina M Peloso, Anita L Destefano

Faculty, Staff and Student Publications

INTRODUCTION: Genome-wide association studies (GWAS) have identified loci associated with Alzheimer's disease (AD) but did not identify specific causal genes or variants within those loci. Analysis of whole genome sequence (WGS) data, which interrogates the entire genome and captures rare variations, may identify causal variants within GWAS loci.

METHODS: We performed single common variant association analysis and rare variant aggregate analyses in the pooled population (N cases = 2184, N controls = 2383) and targeted analyses in subpopulations using WGS data from the Alzheimer's Disease Sequencing Project (ADSP). The analyses were restricted to variants within 100 kb of 83 previously …

An Assessment Of The Current State Of Nursing Homes In The United States, Southern Region, And Tennessee, Nicole Galler

Electronic Theses and Dissertations

Introduction: Nursing homes throughout the U.S. have faced unprecedented challenges in recent years because of staffing shortages, and under-investment, especially since the COVID-19 pandemic. To gain insight into the current state of nursing homes, this study examined nursing home characteristics, quality, and accessibility from a national, regional and state perspective.

Methods: This cross-sectional study used secondary data from the Centers for Medicare and Medicaid Services, American Community Survey, Medicare Beneficiary, and the Tennessee Department of Health. Nursing home characteristics and quality were assessed through bivariate and multivariate regression in the U.S. Assessment of HHS Region 4 nursing home characteristics and …

Exploring The Correlates And Predictors Of Covid-19 Vaccine Hesitancy And Uptake Among People Living With Hiv/Aids In Tennessee, Charles Olomofe

Electronic Theses and Dissertations

Background

The administration of the COVID-19 vaccines has met with resistance and hesitance from different population groups including people living with HIV/AIDS (PLWHA). It is concerning to know that PLWHAs are showing a higher rate of COVID-19 vaccine hesitancy than the general population. The objective of this study is to synthesize the literature and determine the correlates and predictors of COVID-19 vaccine hesitancy among PLWHA using primary and secondary data.

Methods

A scoping review was conducted to identify and summarize studies on COVID-19 vaccine hesitancy among PLWHA using the Preferred Reporting Items for Systematic Review and Meta-analysis (PRISMA) Extension for …

Travel-Time Disparities In Access To Proton Beam Therapy For Cancer Treatment, Todd Burus, Alexander Vanhelene, Michael Rooney, Krystle Lang Kuhs, W. Jay Christian, Christopher Mcnair, Sanjay Mishra, Arnold Paulino, Grace Smith, Steven Frank, Jeremy Warner

Department of Pharmacology, Physiology, and Cancer Biology Faculty Papers

IMPORTANCE: Proton beam therapy is an emerging radiotherapy treatment for patients with cancer that may produce similar outcomes as traditional photon-based therapy for many cancers while delivering lower amounts of toxic radiation to surrounding tissue. Geographic proximity to a proton facility is a critical component of ensuring equitable access both for indicated diagnoses and ongoing clinical trials.

OBJECTIVE: To characterize the distribution of proton facilities in the US, quantify drive-time access for the population, and investigate the likelihood of long commutes for certain population subgroups.

DESIGN, SETTING, AND PARTICIPANTS: This population-based cross-sectional study analyzed travel times to proton facilities in …

Patterns Of Undertreatment And Overtreatment In Adjuvant Radiotherapy For Early-Stage Endometrial Cancer Based On Molecular Classification, Otilia Ciobanu, Yixuan He, Alicia R Martin, Jill S Remick, Joseph W Shelton, Tony Y Eng, David C Qian

Faculty, Staff and Student Publications

The quality improvement study examines the use of risk-adaptive adjuvant radiotherapy in women with non–mismatch repair deficiency endometrial cancer.

Translating Motivational Interviewing For The Hpv Vaccine Into A Computable Ontology Model For Automated Ai Conversational Interaction, Nicole Moore, Muhammad Amith, Ana C Neumann, Jane Hamilton, Lu Tang, Lara S Savas, Cui Tao

Faculty, Staff and Student Publications

Human papillomavirus (HPV) vaccinations are lower than expected. To protect the onset of head and neck cancers, innovative strategies to improve the rates are needed. Artificial intelligence may offer some solutions, specifically conversational agents to perform counseling methods. We present our efforts in developing a dialogue model for automating motivational interviewing (MI) to encourage HPV vaccination. We developed a formalized dialogue model for MI using an existing ontology-based framework to manifest a computable representation using OWL2. New utterance classifications were identified along with the ontology that encodes the dialogue model. Our work is available on GitHub under the GPL v.3. …

Patient Understanding Of Fetal Sex Versus Gender In The Context Of Routine Cell-Free Dna Screening, Mindy Kolodziejski

Dissertations and Theses (Open Access)

Non-invasive prenatal testing (NIPT) is the current standard of care to screen for fetal aneuploidy using cell-free DNA (cfDNA). NIPT screens for sex chromosome aneuploidies (SCAs) and in doing so, can predict fetal chromosomal sex. Despite sex and gender being distinct concepts, many patients refer to NIPT as “the gender test” and elect testing in order to find out predicted fetal sex and assume gender. Our study aimed to evaluate and describe patient understanding of sex and gender in the context of receiving routine prenatal genetics education (PGE) on NIPT. A survey was developed with the goal of assessing patient …

Ictal Central Apnea Is Predictive Of Mesial Temporal Seizure Onset: An Intracranial Investigation, Nuria Lacuey, Blanca Talavera, Oman Magana-Tellez, Oscar Mancera-Páez, Norma Hupp, Xi Luo, Johnson P Hampson, Jaison Hampson, M R Sandhya Rani, Manuela Ochoa-Urrea, Omar A Alamoudi, Stephen Melius, Sandipan Pati, Jay Gavvala, Nitin Tandon, John C Mosher, Samden D Lhatoo

Faculty, Staff and Student Publications

Objective: Ictal central apnea (ICA) is a semiological sign of focal epilepsy, associated with temporal and frontal lobe seizures. In this study, using qualitative and quantitative approaches, we aimed to assess the localizational value of ICA. We also aimed to compare ICA clinical utility in relation to other seizure semiological features of focal epilepsy.

Methods: We analyzed seizures in patients with medically refractory focal epilepsy undergoing intracranial stereotactic electroencephalographic (SEEG) evaluations with simultaneous multimodal cardiorespiratory monitoring. A total of 179 seizures in 72 patients with reliable artifact-free respiratory signal were analyzed.

Results: ICA was seen in 55 of 179 (30.7%) …

The Importance Of Framing The Context Of Black/African Americans' Livelihood To Enhance Health Outcomes And Mitigate Health Inequalities, Elvis Gyan

Theses, Dissertations and Culminating Projects

This study investigates the portrayal of Black/African Americans in Health Marriage and Relationship Education (HMRE) programs, which predominantly follow Eurocentric models while examining how social and structural determinants (e.g., community context) influence stress levels, general health, and relationship satisfaction through two main objectives. Firstly, it aims to scrutinize the acknowledgment of biases towards non-Eurocentric communities in published Administration of Children and Families HMRE programs, analyzing 39 research studies. Secondly, it examines the interplay between perceived community context, stress as a mediator, general health, and relationship satisfaction among Black/African Americans across three distinct articles by testing hypothesized process models. Results for …

The Role Of Cosmopolitan Orientation In Covid-19-Related Attitudes: Perceived Threats And Opportunities, Vaccination Willingness, And Support For Collective Containment Efforts, Angela K. Y. Leung, Brandon Koh, Verity Yu Qing Lua, James H. Liu, Sarah Y. Choi, I-Ching Lee, Michelle Lee, Mei-Hua Lin, Darrin Hodgetts, Sylvia X. Chen

Research Collection School of Social Sciences

Cosmopolitan individuals identify themselves as "citizens of the world." In the present research, we tested the idea that endorsing a cosmopolitan orientation (CO) is adaptive in the COVID-19 crisis. Cosmopolitan individuals more readily transcend national parochialism, show greater concern for all humanity, and prioritize collective interests. In a two-wave multi-region investigation with six samples from China, Hong Kong, Taiwan, Malaysia, Singapore, and the U.S., we first established longitudinal and cross-cultural measurement invariance of the CO scale. Next, we found that people with a higher CO tended to perceive over time a greater threat posed by COVID-19, take more safety measures, …

Well-Being Behaviors And Outcomes In Arkansas Teachers: A Qualitative Analysis Of Teachers In Arkansas During The Covid-19 Pandemic, Ashton Elizabeth Human

Graduate Theses and Dissertations

Introduction: The COVID-19 pandemic introduced new challenges to teachers and emphasized those already existing in the education system. The increased reliance upon technology and lack of administrative support perceived during distance learning led to lower levels of commitment to teaching and increased levels of teacher burnout. Burnout risk is associated with an increased workload, exhaustion from job demands, cynicism toward the professional community and has been shown to have a negative relationship with well-being. Teachers experiencing burnout are unable to establish positive relationships with students, understand students’ needs, stay in contact with trends in the education field, or provide pedagogically …

The Naked Truth: Policy On Tackling The Std Crisis Among Young Adults In Louisiana, Chijindu Eke, Matthew Kelley, Madeline Barclay

Journal of the Louisiana Public Health Association

No abstract provided.

Adolescent Development Unconsidered - Facts Related To Youth In The Adult Criminl Legal System, Stephen Phillippi

Journal of the Louisiana Public Health Association

After three administrations, including republican and democrat leadership, and over two-decades of bi-partisan justice reform, Louisiana has elected to likely return to a time when we were known as the incarceration capital of the world. There were numerous reasons for the reforms that happened, including federal lawsuits, supreme court rulings, new evidence of what works in juvenile justice, and a renewed focus on community programs to support youth and families (both victims and delinquent youth). These reforms focused on increasing public safety, improving outcomes, being more developmentally responsive, and responsibly lowering reliance on incarceration. The commentary that follows is solely …

Targeted Accurate Rna Consensus Sequencing (Tarc-Seq) Reveals Mechanisms Of Replication Error Affecting Sars-Cov-2 Divergence, Catherine C Bradley, Chen Wang, Alasdair J E Gordon, Alice X Wen, Pamela N Luna, Matthew B Cooke, Brendan F Kohrn, Scott R Kennedy, Vasanthi Avadhanula, Pedro A Piedra, Olivier Lichtarge, Chad A Shaw, Shannon E Ronca, Christophe Herman

Duncan NRI Faculty and Staff Publications

RNA viruses, like SARS-CoV-2, depend on their RNA-dependent RNA polymerases (RdRp) for replication, which is error-prone. Monitoring replication errors is crucial for understanding the virus’s evolution. Current methods lack the precision to detect rare de novo RNA mutations, particularly in low-input samples such as those from patients. Here, we introduce a new targeted Accurate RNA Consensus sequencing method (tARC-seq) to accurately determine the mutation frequency and types in SARS-CoV-2, both in cell culture and clinical samples. Our findings show an average of 2.68×10−5 new errors per cycle with a C>T bias that cannot be solely attributed to APOBEC …

Proteomic Biomarkers Of Quantitative Interstitial Abnormalities In Copdgene And Cardia Lung Study, Bina Choi, Gabrielle Y Liu, Quanhu Sheng, Kaushik Amancherla, Andrew Perry, Xiaoning Huang, Ruben San José Estépar, Samuel Y Ash, Weihua Guan, David R Jacobs, Fernando J Martinez, Ivan O Rosas, Russell P Bowler, Jonathan A Kropski, Nicholas E Banovich, Sadiya S Khan, Raúl San José Estépar, Ravi Shah, Bharat Thyagarajan, Ravi Kalhan, George R Washko

Faculty, Staff and Students Publications

Rationale: Quantitative interstitial abnormalities (QIAs) are early measures of lung injury automatically detected on chest computed tomography scans. QIAs are associated with impaired respiratory health and share features with advanced lung diseases, but their biological underpinnings are not well understood. Objectives: To identify novel protein biomarkers of QIAs using high-throughput plasma proteomic panels within two multicenter cohorts.

Methods: We measured the plasma proteomics of 4,383 participants in an older, ever-smoker cohort (COPDGene [Genetic Epidemiology of Chronic Obstructive Pulmonary Disease]) and 2,925 participants in a younger population cohort (CARDIA [Coronary Artery Disease Risk in Young Adults]) using the SomaLogic SomaScan assays. …

Mechanisms Driving Fasting-Induced Protection From Genotoxic Injury In The Small Intestine, Kali Deans-Fielder, Timothy Wu, Thanh Nguyen, Sarah To, Yang-Zhe Huang, Steven J Bark, Jason C Mills, Noah F Shroyer

Faculty, Staff and Students Publications

Genotoxic agents such as doxorubicin (DXR) can cause damage to the intestines that can be ameliorated by fasting. How fasting is protective and the optimal timing of fasting and refeeding remain unclear. Here, our analysis of fasting/refeeding-induced global intestinal transcriptional changes revealed metabolic shifts and implicated the cellular energetic hub mechanistic target of rapamycin complex 1 (mTORC1) in protecting from DXR-induced DNA damage. Our analysis of specific transcripts and proteins in intestinal tissue and tissue extracts showed that fasting followed by refeeding at the time of DXR administration reduced damage and caused a spike in mTORC1 activity. However, continued fasting …

Immune Cell Pair Ratio Captured By Imaging Mass Cytometry Has Superior Predictive Value For Prognosis Of Non-Small Cell Lung Cancer Than Cell Fraction And Density, Jian-Rong Li, Chao Cheng

Faculty, Staff and Students Publications

No abstract provided.

Robotic-Assisted Single-Site Abdominal Cerclage In The Bicornuate Uterus Patient With Cervical Insufficiency, Nurul Farhanah Binte Abdul Latif, Zhenkun Guan, Sylvia Asare, Xiaoming Guan

Faculty, Staff and Students Publications

Objective: To demonstrate the surgical techniques for improving safety in robotic-assisted abdominal cerclage in patients with bicornuate uteri complicated by recurrent pregnancy loss and cervical insufficiency.

Design: Stepwise demonstration with narrated video footage.

Setting: An academic tertiary care hospital.

Patients: Our patient is a 22-year-old G2P0020 with a history of recurrent pregnancy loss. During her first pregnancy, she was asymptomatic until 19 weeks and delivered because of a preterm premature rupture of membranes. A transvaginal cerclage was performed for her second pregnancy at 14 weeks, which ended at 16 weeks because of preterm premature rupture of membranes. The final magnetic …

A Radiotherapy Community Data-Driven Approach To Determine Which Complexity Metrics Best Predict The Impact Of Atypical Tps Beam Modeling On Clinical Dose Calculation Accuracy, Fre'etta Mae Dayo Brooks, Mallory Carson Glenn, Victor Hernandez, Jordi Saez, Hunter Mehrens, Julianne Marie Pollard-Larkin, Rebecca Maureen Howell, Christine Burns Peterson, Christopher Lee Nelson, Catharine Helen Clark, Stephen Frasier Kry

Faculty, Staff and Student Publications

PURPOSE: To quantify the impact of treatment planning system beam model parameters, based on the actual spread in radiotherapy community data, on clinical treatment plans and determine which complexity metrics best describe the impact beam modeling errors have on dose accuracy.

METHODS: Ten beam modeling parameters for a Varian accelerator were modified in RayStation to match radiotherapy community data at the 2.5, 25, 50, 75, and 97.5 percentile levels. These modifications were evaluated on 25 patient cases, including prostate, non-small cell lung, H&N, brain, and mesothelioma, generating 1,000 plan perturbations. Differences in the mean planned dose to clinical target volumes …

Examining The Risks And Resilience Of Older Adults Living With Hiv/Aids: Qualitative Community-Based Participatory Research Studies In Southern Nevada, Brandon Ranuschio

UNLV Theses, Dissertations, Professional Papers, and Capstones

Since the height of the HIV pandemic in the 1980s, medical interventions have significantly increased the life expectancy of people living with HIV/AIDS (PLWH) and made HIV/AIDS a livable, chronic health condition. Because of this, PLWH have been living longer lives and thriving with the help of HIV sector healthcare and service providers. However, with their longer life expectancy, older PLWH have been experiencing other health challenges. One such challenge is the risk of developing HIV-Associated Neurocognitive Disorder (HAND), which is a condition that affects up to 50% of PLWH at some point in their lifetime, with middle-aged and older …

Investigating Nursing Students’ Levels Of Knowledge About Alzheimer’S Disease, Dilek Doruk Kondakci, Aliye Mandiracioğlu

Makara Journal of Health Research

Background: Given that Alzheimer’s disease (AD) has become a major public health problem, this study aimed to investigate the AD knowledge level of nursing students who are health professional candidates.

Methods: The population of this cross-sectional study consisted of 346 nursing students taking up a 4-year program. They were asked to fill out a sociodemographic information form and answer questions from the Alzheimer’s Disease Knowledge Scale (ADKS).

Results: Among the participants, 67.6% were female and 98.8% were single. The mean age of the students was 20.55 ± 2.05 years. Their general knowledge about AD was low, with …