Digital Commons Network^™

Effect Of Coarse Aggregate On The Stability And Mechanical Performance Of Ultra-High Performance Concrete (Uhpc), Rui Zhong, Mingyan Pan, Hongyu Wu, Zhao Cheng, Jianzhong Liu, Jingquan Wang, Yiming Yao, Hongyan Ma

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The effect of coarse aggregate (CA) on the stability and mechanical performance of ultra-high-performance concrete (UHPC) was investigated. To assess UHPC stability, a unique approach was developed that utilizes specially fabricated large specimens with a depth of 400 mm. It overcomes the drawback of limited CA migration distance using small specimens, which may not replicate conditions relevant to structural applications. The spatial distributions of various constituents along the vertical casting direction were quantified through image processing technology. Results showed an approximately 12 % reduction in CA content in the top layer, while the bottom layer exhibited 12 % more CA …

Instability-Driven Phase Separation For Quantum Structure Formation In Iii-V Semiconductors, Leonid Miroshnik

Chemical and Biological Engineering ETDs

High temperature phase instability limits the performance of III-V zinc blende semiconductor devices. A technique using an encapsulant and sacrificial layer is developed to reduce thermal degradation by group V sublimation during thermal processing of InGaAs/GaAs structures. This technique is successful in preventing As sublimation and preserving an atomically smooth surface required for surface-sensitive characterization. The degradation of the GaAsSb/InP interface by phase separation is studied. Significant interdiffusion and intermixing occurs due to the formation of a molten InSb at the interface. The intermixing is driven by phase separation and melting of the InSb interfacial layer that enhances atomic mobility. …

An Exploration Of Holistic Admissions Protocol In Graduate School: Implications For Access And Equity, Kelly Doherty

Dissertations and Theses

Historically, graduate admissions policies at higher education institutions have heavily relied on standardized testing, which limits access to graduate and professional degrees for underrepresented demographic and gender groups. Recently, movements toward holistic graduate admissions processes and strengths-based evaluations of applicants have shown promise in equitably recruiting and admitting candidates. However, the field currently lacks common best practices and strategies for enhancing equity in the evaluation of applicant credentials. Furthermore, recent federal challenges to campus diversity and inclusion efforts have complicated these initiatives. To address these issues, this qualitative comparative case study examined five university graduate schools that are implementing holistic …

From Silence To Clarity: Enhancing Surgical Icu Communication Through Personalized Whiteboards, Braeden R. Woods

Master's Projects and Capstones

Objective: Critically ill patients in the intensive care unit (ICU) are at heightened risk of dehumanization due to sedation, mechanical ventilation, and prolonged hospitalization. This quality improvement (QI) initiative aimed to enhance patient-centered communication in the Surgical Intensive Care Unit (SICU) at a Northern California academic quaternary care hospital through the implementation of personalized communication whiteboards. Aim: To develop a personalized communication board that, once implemented, would achieve at least 75% utilization in patient rooms by May 2025. Methods: Guided by a Plan-Do-Study-Act (PDSA) framework, surveys were conducted with SICU patients, families, and staff to gather stakeholder input and inform …

The Role-Space Of Italian Sign Language Educational Interpreters: An Ethnographic Case Study Of Interpreters At The Istituto Comprensivo Di Cossato, Martin A. Crudo

Language, Literacy, and Sociocultural Studies ETDs

This dissertation explores the role-space of educational interpreters at IC Cossato, an Italian public school known for its Bilingualism Project promoting LIS-Italian bilingualism and biliteracy (Rivisto, 2016; Teruggi, 2003). Role-space theory (Lee, 2023; Llewellyn-Jones & Lee, 2013, 2014) conceptualizes interpreters’ roles as dynamic and co-constructed with interlocutors along three axes: Presentation of Self, Interaction Management, and Participant Alignment. Through ethnographic interviews (Spradley, 2016), observations and field notes (Emerson et al. 2011; Glesne, 2016), and policy artifacts (Hornberger & Johnson, 2011), I investigate how three interpreters in IC Cossato’s elementary school perceive and enact their roles, often diverging from their …

The Lived Experiences Of Covid-19 Grief, Loss, And Coping Strategies For Black Family Caregivers Of Covid Orphans, Allison Dalrymple-Mason

Walden Dissertations and Doctoral Studies

Black family caregivers in the United States experienced disproportionately high mortality rates due to COVID-19, resulting in many Black children becoming orphans. The unexpected loss placed a burden on these family caregivers, who navigated their grief while taking on new caregiving responsibilities. Limited studies explored how Black family caregivers experienced the meaning of COVID grief, loss, and coping strategies. The purpose of this qualitative phenomenological study was to gain an understanding of the meaning of grief, loss, and coping strategies for Black family caregivers of COVID orphans, guided by Worden’s task-based approach to supporting people bereaved by COVID-19 and Folkman’s …

Community Health Workers’ Lived Experience Of Using Videoconferencing With Community Members, Valdora Lejune Avery

Walden Dissertations and Doctoral Studies

Community health workers in the United States faced significant challenges in conducting in-person community practice during the COVID-19 pandemic, which adversely affected their communication, training, and service delivery outcomes. Videoconferencing enabled workers to connect with underserved populations for individual and community crisis response. The purpose of this study was to describe the lived experiences of community health workers in the Rural Community Health Worker Network (RCHWN) regarding the use of videoconferencing among community members in practice and how members in RCHWN perceive the availability of videoconferencing devices to communicate in the community. Transcendental phenomenology provided the conceptual framework and research …

Zen Body, Zen Mind: Can A Law Student Learn Mediation In Law School?, Vanessa Kubota

Arbitration Law Review (2009 - Present)

No abstract provided.

Presence Of The Past: The Translation Of Traditional Culture Into Contemporary Form Among The Igbo Peoples Of Southeastern Nigeria, Nelson Agalaba

Bachelor of Architecture Theses - 5th Year

Architecture serves as the physical embodiment of a group’s cultural values, history, and social dynamics- or identity. The arrival of European colonialism and modernism brought about a paradigm shift, prioritizing a universal European aesthetic and “international style”, displacing indigenous architectural traditions and severing the deep connections between culture and the natural and built environments. The global south has experienced the brunt of this process, especially the African continent. For example, the Igbo peoples of southeastern Nigeria have lost nearly all examples of their building traditions and have been in a constant struggle to create an architecture that captures their rich …

Developing An Evidence-Based Continuing Education Program For Physical Therapists Working With Individuals With Down Syndrome, Luis Azpeitia, Chantel Montayre, Rebecca Peterson, Alyssa Pociernicki

UNLV Theses, Dissertations, Professional Papers, and Capstones

Despite the abundance of resources available for physical therapists (PTs) treating children with Ds, the resources are limited for PTs working with teens and adults. This suggests that this population is underserved within the healthcare community. This project aimed to bridge this knowledge gap by developing a comprehensive continuing education program for physical therapists, focused on the treatment and care of teens and adults with Ds. This education program will give physical therapists a resource for treating teens and adults with Ds, an under-resourced population. Two modules focusing on musculoskeletal (MSK)/gait and communication strategies were developed, and then pilot tested …

Fostering Intergenerational Connection Through The Implementation Of Bingocize: A Community-Based Fall-Prevention Program, Dejeigh Herrera, Shelby Humphreys, Kayla Lee, Danielle Platt

UNLV Theses, Dissertations, Professional Papers, and Capstones

Falling is an experience that can be traumatic and detrimental to the overall health of those aged 65 and older. As this portion of the population in the United States continues to grow, so does the importance of understanding the general health concerns of these individuals and the way they contribute to their risk of falling and impact their ability to live independently. One program to help address these risks is Bingocize, an evidence-based program designed by Jason Crandall, a professor of exercise science at Western Kentucky University in 2011. Bingocize is a 10-week fall prevention program designed to educate …

Effects Of Different Cannabis Compounds On Balance, Freezing Of Gait, And Bradykinesia In Parkinson’S Disease: Cross-Sectional Analysis Of Self-Report Data From The Fox Insight Study, Alexandria Dockery, Adan Hernandez, Cody Miyashiro

UNLV Theses, Dissertations, Professional Papers, and Capstones

Objective: To explore the effects of delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD)) on self-reported balance problems, freezing of gait (FOG), and bradykinesia in Parkinson’s disease (PD).

Background: Recent research has indicated that a high proportion of people with PD are interested in using cannabis for symptom management. Given the known intoxicating and motor impairing properties of THC, it may negatively affect postural instability and increase fall risk in people with PD.

Methods: Data from the Fox Insight online clinical study were analyzed in February 2024. The analysis only included participants with PD who answered questions about cannabis use (n=2754). Responses were …

Does Student Interest In Rural Or Underserved Practice Change Following Exposure To A Full Time Rural Or Underserved Clinical Experience?, Hans D. Capistrano, Maxwell D. Giedlin, Kayla A. Houston

UNLV Theses, Dissertations, Professional Papers, and Capstones

Access to healthcare in rural areas remains a significant challenge, with rural communities facing unique barriers such as limited healthcare providers, increased travel distances, and lower insurance coverage rates. Nevada exemplifies this issue, ranking 45th in the United States in access to physical therapy services, with particularly low provider availability in its rural regions. Research suggests that clinical education experiences in rural and underserved areas may encourage healthcare professionals to practice in these communities post-graduation. This study examined the relationship between clinical experiences in rural and underserved settings amongst University of Nevada, Las Vegas Physical Therapy (UNLVPT) students’ interest in …

Unlv Admissions: Effect Of The In-Person Interview On The Holistic Admissions Of Minority Applicants Into The University Of Nevada, Las Vegas Doctor Of Physical Therapy Program, Jonathan Madamba, Walker Riley, Isaiah Taylor

UNLV Theses, Dissertations, Professional Papers, and Capstones

Purpose/Methods: The goal of this study is to analyze the effect of an in-person interview on the admission of minority applicants into the Doctor of Physical Therapy (DPT) program at the University of Nevada, Las Vegas (UNLV). Using data from the 2014-2022 admissions cycles we assessed inter-rater reliability of the interviewer’s, differences in average in-person interview score between racial groups, and compared the difference in pre-interview scores between racial groups.

Results: We found that students identifying as Black scored higher on interviews than their White counterparts. However, a smaller proportion of them matriculated into the program due to the difference …

Correlation Between Atnr Retention And Sensory Processing Difficulties In A Pediatric Occupational Therapy Population, Cassaundra H. Abernathy

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study aimed to examine the correlation between retained Asymmetric Tonic Neck Reflex (ATNR) and sensory processing difficulties in children. A review of the literature available contributed to understanding the relationship between these; however, the limited research indicated a need for further examination to provide practitioners with evidence-based research for comprehensive care and improved occupational performance in children. A small correlational study was conducted using the snowball method with convenience sampling. The study yielded six participants from an occupational therapy outpatient clinic, A Clubhouse for Kids. Caregivers completed the Sensory Profile 2 in hard copy to assess their child's sensory …

Core Temperature While Swimming In Warm Open Water With And Without A Wetsuit, Katsiaryna Afanasyeva

UNLV Theses, Dissertations, Professional Papers, and Capstones

Triathlon is a popular sport which attract participants from all over the world. In general, triathlon is a safe sport with risk of death being about 1.74 deaths per 100,000 participants (Harris et al., 2017). The swimming portion of the race can be dangerous, posing particular risks due to open water conditions and the physical demands of the event. This study investigated the effects of wetsuit use on core temperature in warm open-water swimming (27.9–28.3°C). Four experienced triathletes (2 males, 2 females; age 49.50 ± 7.83 years) completed two 700-meter open-water swims at a submaximal pace—once wearing their personal full-sleeve …

Pre-Service Teacher Self-Efficacy For Classroom Management And Evidence Based Practices For Managing Classroom And Challenging Behaviors, Mathew Benthin

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study investigated the relationship between pre-service teachers' self-efficacy (TSE) and their knowledge of evidence-based practices. Teacher self-efficacy, defined as the belief in one's ability to achieve specific teaching goals, plays a pivotal role in shaping teaching behaviors and student outcomes. Evidence-based practices, grounded in scientific research, are essential for effective teaching and problem-solving in diverse classroom settings. This study highlighted the importance of the two specific resources of self-efficacy and knowledge of evidence-based practices for managing classrooms and challenging behaviors. By exploring pre-service teacher resources, this study aimed to contribute to the body of literature exploring the challenges facing …

New Teachers’ Mentoring Expectations And Experiences: A Qualitative Multiple Case Study, Preston Maurice Blakely

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this qualitative multiple case study was to explore how the expectations of new teachers, about their mentoring program and their mentoring experiences can be used to improve the structural design and procedures of mentoring programs to better support new teachers. Socio-historical and sociocultural theories were used to guide the study and purposive sampling strategy was used to recruit five participants who were in the first years of teaching. Based on a rich set of data sources which included a pre-interview and a post- interview, the findings revealed that despite the existence of mentoring programs in the participants’ …

Kealaikahiki By Michael-Thomas Foumai: A Transcription For Wind Orchestra With Accompanying Historical Context, Cultural Significance, And A Discussion Of The Transcription Process, Ocean Kupono Akaka

UNLV Theses, Dissertations, Professional Papers, and Capstones

This document includes a transcription of the three movements of Michael-Thomas Foumai’s suite for orchestra, Kealaikahiki. An overview of the historical context of the work; including biographical information about the composer, and the history surrounding the inspiration of the work is included. A detailed explanation of the techniques used in transcribing the work for wind orchestra is also included.

'We Owe, You Know, The World Our Perfection': How The Neurodiversity Paradigm Informs Autistic Women's Self-Perceptions, Katybeth Adamo

UNLV Theses, Dissertations, Professional Papers, and Capstones

This qualitative, phenomenological study examines how autistic women characterize and interpret their experiences, beliefs, and self-perceptions within the framework of the neurodiversity paradigm. Guided by a social constructivist epistemology, this study explores the complex intersections between autistic women’s experiences of diagnostic processes, gendered socialization, and identity formation in autistic women. Through semi-structured interviews with ten autistic women, themes emerged around gender differences between autistic men and women, external versus internal self-perception, diagnostic age and self-perception, sensory overload and its consequences, and the journey from feeling othered to finding one’s place socially. Findings suggest that delayed diagnosis and persistent societal pressures …

The Science Behind Free Rebound, Ryan Nash Bond

UNLV Theses, Dissertations, Professional Papers, and Capstones

This document examines a history of the the percussion stroke used throughout history leading to Free Rebound. It focuses on how grip, technique, and pedagogy have evolved over time through various pedagogues. The concept and stroke motion in Free Rebound was first advocated by George Lawrence Stone, Billy Gladstone, Fred Hinger, Buster Bailey, Ed Soph, and Joe Morello, it was implemented in playing and teaching by Gary Cook, and furthered by Dean Gronemeier. This discussion aims to support professionals', students', and teachers' interests by discussing the pedagogies of different approaches over time. The health and wellness section helps to discuss …

The Roles Of Oprf In Pseudomonas Aeruginosa Biofilms, Erin K. Cassin

UNLV Theses, Dissertations, Professional Papers, and Capstones

Many bacteria form multicellular communities known as biofilms. Biofilms contain bacterial cells and a protective extracellular biofilm matrix. This matrix contains exopolysaccharides, extracellular DNA (eDNA), membrane vesicles, and proteins. The matrix proteins are far less characterized than other extracellular biofilm components. In biofilms formed by the model organism Pseudomonas aeruginosa, the protein OprF is abundant in the cellular outer membrane and the extracellular matrix. In my dissertation research, I have presented data supporting the hypothesis that the OprF protein significantly affects P. aeruginosa biofilms. By examining various strain backgrounds and the nutrient-dependent effects of glucose and sodium chloride, I demonstrate …

The Effects Of Blood Flow Restriction And Body Weight Support Treadmill Walking On Electromyographic Activity In Lower Limb Muscles, Cyanea Davies

UNLV Theses, Dissertations, Professional Papers, and Capstones

Blood flow restriction (BFR) is an emerging rehabilitation modality shown to enhance muscle activation and elicit strength gains comparable to high-intensity training at lower loads (Cognetti et al.,2019). Body weight support (BWS) treadmill walking is another modality that has gained popularity due to the effect it has on lowering muscle activation with increasing support levels (Jensen et al.,2016). However, to date no research has looked at electromyographic (EMG) activity utilizing both modalities concurrently. This study investigated if stride frequency (SF) and muscle activity of the rectus femoris (RF), biceps femoris (BF), tibialis anterior (TA) and gastrocnemius (GA) would be influenced …

Efficient Wattle Design For High-Level Nuclear Waste Tanks, Jasmine B. Clarke

UNLV Theses, Dissertations, Professional Papers, and Capstones

At the Hanford Site in Washington state and the Savannah River Site in South Carolina, there are underground steel tanks that hold high-level nuclear waste (HLW) and nearly 450 million curies of radioactivity. At these sites, some leaks have been detected in HLW tanks. While detecting these leaks allows for identification of the issue, it does not solve the problem or prevent the leakage of HLW contaminants into collection pans and secondary containment. Repairing these leaks poses potential threats to workers for exposure risk. To address this issue, the present research seeks to create and utilize an active barrier in …

Bridging The Gap Between Vocal Performance Degrees And Opera Apprentice Programs: A Comparative Study Of Pedagogical Methods, Emily Marie Dirks

UNLV Theses, Dissertations, Professional Papers, and Capstones

While operatic apprentice programs seek singers with strong vocal potential, they rarely define the specific technical skills necessary for success. This study bridges the gap between vocal performance degrees and the opera industry by identifying the vocal techniques that may improve a singer’s likelihood of acceptance into an apprentice program. To achieve this, the research draws from two primary sources: pedagogical texts and interviews with industry experts who actively teach, coach, or perform alongside apprentice artists at elite opera houses. These experts include voice teachers Darrell Babidge and Jack LiVigni, vocal coaches Beatrice Benzi and John Parr, and internationally acclaimed …

Musical Language And Communication: Students Connect Music Streams To Literacy, Mathematics, Science, And Movement, Kelly Collier

UNLV Theses, Dissertations, Professional Papers, and Capstones

This dissertation discusses how music and literacy claim many of the same skills, ways music may be used as a motivational tool to help promote strategies for skill development, and how teachers working in teams have the innovation to generate strategic learning. By combining music symbolism with the literacy curriculum, one can create a set of elementary school lessons that integrate musical melody with the facets of literacy, mathematics, science, and movement to formulate beneficial opportunities for student engagement and learning. Students cultivate learning by using the elements of rhythmic literacy, such as identifying beat values in conjunction with their …

Bridging The Gap: A Quality Improvement Initiative To Enhance Interoception Resources For Pediatric Oncology Ots, Dana Louise Lomotan Doolittle

UNLV Theses, Dissertations, Professional Papers, and Capstones

Chemotherapy administered to children and youth diagnosed with pediatric cancers may induce side effects such as pain, fatigue, anxiety, and other distressing symptoms that could impact the ability to meet occupational needs and desires in daily functioning. The occupational therapy discipline incorporates mindfulness strategies to target these symptoms for increased body awareness in children with cancer, though interoception’s role within the pediatric oncology population is obscure. Furthermore, there are implicated demands described in the literature for more established pediatric oncology rehabilitation programs to attend to the specific needs of the population and to advocate for occupational therapy’s role in the …

Plagiocephaly In Premature Infants: Enhancing Nicu Caregiver Education, Hailee Efferson

UNLV Theses, Dissertations, Professional Papers, and Capstones

Objective: To improve NICU nurses’ confidence in preventing and managing plagiocephaly in premature infants through a one-on-one educational session.Design: One-group post-test design for a quality improvement initiative. Setting: Neonatal Intensive Care Unit (NICU) at Summerlin Hospital Medical Center. Participants: 20 NICU Nurses. Measures: Post-session questionnaire including close-ended Likert scale and open-ended questions. Results: Mean scores ranged from 3.5 to 4.0, with the highest rating for the helpfulness of the session format (mean = 4.0) and the lowest for confidence in alternating infant positioning (mean = 3.5). Standard deviations ranged from 0 to 0.59, indicating strong agreement regarding the session format …

Expanding Anatomy Academy In The Las Vegas Metropolitan Area: A Service Learning Project To Improve Childhood Health Through Supplemental Educational Sessions, Alekzander Hall, Brandon Paige, Marlee Parkin, David Sanchez

UNLV Theses, Dissertations, Professional Papers, and Capstones

Childhood obesity is a growing epidemic in the United States, with approximately 18.5% of US children presenting with obesity. High levels of obesity are less common in higher income communities, but increasingly more prevalent in lower income communities. Currently in Clark County, Nevada, more specifically in lower socioeconomic communities and Title I schools within the Las Vegas area, there is an opportunity to educate students about the components of a healthier lifestyle to provide children with the tools to improve their health. Anatomy Academy (AA) is an eight-week health education program that was created to teach fourth and fifth grade …

Chronic Exposure To Porphyromonas Gingivalis Disrupts Macrophage Innate Immune Responses, Corey Allen Foulk

UNLV Theses, Dissertations, Professional Papers, and Capstones

Introduction: Porphyromonas gingivalis (Pg) is a pathogenic, “red-complex” bacteria found in higher concentrations in advanced gingivitis and periodontitis. Macrophages are capable of adopting numerous phenotypes depending on the surrounding environment. Classic M1 macrophages are the result of inflammatory signals including IFNγ. This study investigated whether naïve M0 macrophages can transition into classic M1 macrophages following stimulation with traditional agonists after cells have been exposed to formalin killed P. gingivalis.Methods: The THP-1 monocytes were differentiated into naïve macrophages (M0) using PMA treatment. The M0 cells were challenged with formalin killed P. gingivalis for 24 hours. After prolonged exposure to P. gingivalis, …