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Articles 901 - 930 of 17653
Full-Text Articles in Entire DC Network
Severe Polyarticular Gout Flare Inducing Diabetic Ketoacidosis: A Case Report, John Rovig, Jose Lazarte Loayza, Sana Gurz, Jessica Chung, Winn Chatham
Severe Polyarticular Gout Flare Inducing Diabetic Ketoacidosis: A Case Report, John Rovig, Jose Lazarte Loayza, Sana Gurz, Jessica Chung, Winn Chatham
School of Medicine Faculty Research
Diabetic ketoacidosis (DKA) is a serious condition that is triggered by multiple stressors, including processes linked to inflammation. Gout is an inflammatory process that has not been directly linked to DKA, but it affects similar pathways, affecting glycemic control. This case illustrates the link between DKA and gout flares with emphasis on the nuanced management of gout in the setting of DKA.
Comparing Virtual Reality Vs. Augmented Reality In Promoting Covid-19 Self-Testing, Vaccination, And Preventive Behaviors, Zhan Xu, Lisa Dam
Comparing Virtual Reality Vs. Augmented Reality In Promoting Covid-19 Self-Testing, Vaccination, And Preventive Behaviors, Zhan Xu, Lisa Dam
Hank Greenspun School of Journalism and Media Studies Faculty Research
Objective: Virtual Reality (VR) and Augmented Reality (AR) are innovative technologies that can serve as effective tools for creating health interventions by altering psychological distance. Based on construal level theory and the reality-virtuality continuum, we designed, tested, and compared VR and AR campaigns to encourage proactive measures against COVID-19. Methods: 143 participants were randomly assigned to one of three messages: VR, AR, and a CDC video, and completed surveys before, immediately, and one week following message exposure. Results: VR and AR increased preventive intentions and behaviors against COVID-19 both in the short and long run. VR was particularly effective as …
Canine Parasites In Southern Nevada Urban Dog Parks: Paravec Study, Miklo Azrael A. Alcala
Canine Parasites In Southern Nevada Urban Dog Parks: Paravec Study, Miklo Azrael A. Alcala
UNLV Theses, Dissertations, Professional Papers, and Capstones
While dogs are one of humans’ greatest companions, they also serve as hosts for a multitude of parasites. Urban dog parks serve as environments where the transmission of diseases is likely to occur. Exposure to infective agents, contained within the soil, intermediate hosts (e.g., rodents, rabbits), and feces, can directly affect the health of dogs and their owners. Other factors that can further influence canine health include age, previous diagnoses of parasites/diseases, and migration. Many dog owners visit dog parks to encourage socialization and exercise. Such activities are meant to improve health, but unawareness of microbiological organisms can lead to …
The Impact Of The Covid-19 Pandemic On Device-Associated Healthcare-Associated Infections In Nevada, Gabriela Bran
The Impact Of The Covid-19 Pandemic On Device-Associated Healthcare-Associated Infections In Nevada, Gabriela Bran
UNLV Theses, Dissertations, Professional Papers, and Capstones
Healthcare-associated infections or hospital-acquired infections (HAIs) have remained prevalent despite the growth of infection control programs in healthcare facilities and are a large cause of morbidity and mortality. Device-associated HAIs (DA-HAIs) make up a large portion of HAIs. The devices include central line-associated bloodstream infections (CLABSIs), catheter-associated urinary tract infections (CAUTIs), and ventilator-associated events (VAEs). DA-HAIs became a large concern during the COVID-19 pandemic as many healthcare facilities became overwhelmed by the influx of COVID-19 cases, illuminating the importance of studies to examine these changes. Therefore, this study aimed to evaluate how DA-HAI rates have changed during and after the …
Institutional Design Of Intergovernmental Organizations: Cooperation, Vitality, And Evolution, Darrell James Carter
Institutional Design Of Intergovernmental Organizations: Cooperation, Vitality, And Evolution, Darrell James Carter
UNLV Theses, Dissertations, Professional Papers, and Capstones
Intergovernmental organizations (IGOs) are critical institutions in the international system through which states cooperate and compete. Much scholarship has examined the role and operation of IGOs, but many questions about how they facilitate cooperation, their vitality, and their evolution remain. The functions of IGOs are impacted by their institutional design, which then affects operation and vitality. IGO’s perform their roles through multiple mechanisms that facilitate state interaction. IGOs enable states to overcome credibility issues and cooperate. The institutional design of IGOs, their membership, their resources, and their institutionalization, all impact the functioning of the IGO. I examine empirically how joint …
Impact Of Placement Disruption On School Outcomes In Maltreated Youth, Mallory Constantine
Impact Of Placement Disruption On School Outcomes In Maltreated Youth, Mallory Constantine
UNLV Theses, Dissertations, Professional Papers, and Capstones
School attendance is a crucial component of a youth’s ability to access resources and attain educational success. Maltreated youth are at increased risk for school absences, poor school performance, impairment in cognitive processes, and development of psychopathology. Disruption from their known systems (i.e., family, social, school) as a result of removal from home creates unique and substantial barriers for maltreated youth in attending and engaging in school. The present study used a sample of maltreated youth and binomial logistic regression analyses to determine if the number of lifetime placements impacts school outcome variables of school attendance, classroom behavior, and academic …
Harnessing Nlp And Large Language Models For Pattern Discovery And Information Extraction In Electric Health Reports, Mina Esmail Zadeh Nojoo Kambar
Harnessing Nlp And Large Language Models For Pattern Discovery And Information Extraction In Electric Health Reports, Mina Esmail Zadeh Nojoo Kambar
UNLV Theses, Dissertations, Professional Papers, and Capstones
In this work, we report on a series of natural language processing tools and models to improve the efficiency and accuracy of information discovery from clinical trials and pharmacological studies. Our main contributions are: 1. The development of an open-source platform Tri-AL that • Enables dynamic tracking of clinical trials information over time, • Excels in data visualization and user interaction with a particular emphasis on enhancing the analysis and representation of race and ethnicity data to foster equity in clinical research, and • Includes a predictive model utilizing machine learning to decipher drug mechanisms of action. 2. Heterogeneous Graph …
Gender Stereotyping In An Agricultural Sample, Andrea Fink-Armold
Gender Stereotyping In An Agricultural Sample, Andrea Fink-Armold
UNLV Theses, Dissertations, Professional Papers, and Capstones
A vast wealth of social psychological research conducted over half a century has demonstrated the consequences of gender stereotypes. However, this research has significant limitations. Namely, generalizability outside of academia and the effects of social change. This study examined a non-academic population that has recently experienced significant gender role redistribution to overcome these limitations. Utilizing a full-cycle research approach consisting of both ethnographic and experimental methods, I examined three research questions: 1) how do gender stereotypes manifest within rural agricultural communities? 2) how is women’s increased participation in agriculture related to changes in gender stereotype use? and 3) how do …
The Transformative Power Of Traditional Spirituals In "Spiritual Sketches" By Damien Sneed: A Study Of Musical Influence And Cultural Heritage, Haylee Glenn
UNLV Theses, Dissertations, Professional Papers, and Capstones
This doctoral project aims to comprehensively study Damien Sneed's life, work, and legacy by examining his musical career, the themes and inspirations that inform his art, and the impact he has had on classical music. Through a detailed analysis of compositions “Every Time I Feel the Spirit,” “Deep River,” and “Sometimes I Feel Like a Motherless Child” from Damien Sneed's "Spiritual Sketches," this study will shed light on how Sneed incorporates this important cultural and musical tradition into his compositions in an innovative way. This dissertation will explore the roots of the traditional spiritual, examine its significance during the Black …
The Influence Of The Covid-19 Pandemic On Binge Eating In A Demographically Diverse Us Community Sample, Jessica H. Habashy
The Influence Of The Covid-19 Pandemic On Binge Eating In A Demographically Diverse Us Community Sample, Jessica H. Habashy
UNLV Theses, Dissertations, Professional Papers, and Capstones
The novel coronavirus pandemic (COVID-19) has had profound effects among many individuals with or at risk for eating disorders. The most common primary eating disorder is binge eating disorder which has uniquely reflected more similarities than differences among diverse populations compared to other eating disorder classifications. Considering the upsurge of prevalence rates of eating disorders during the pandemic, it is important to assess the rate of binge eating across the demographic strata to gain a better understanding of who is impacted and provide healing to those who are suffering. Screening for binge eating features across the United States (US) using …
Leveling The Playing Field: An Ethnographic Study Of Latinx Youth Soccer Leagues In Las Vegas, Jeannette Hernández
Leveling The Playing Field: An Ethnographic Study Of Latinx Youth Soccer Leagues In Las Vegas, Jeannette Hernández
UNLV Theses, Dissertations, Professional Papers, and Capstones
This study examines how youth sports privatization, family dynamics, coaching, and team organization affect Latinx youth’s opportunities and interests in playing competitive soccer. It also examines the role that soccer plays in identity-making for Latinx people in Las Vegas, if and how they use these soccer spaces to develop kinship ties and build community, and it documents how these soccer spaces are developed as counter-spaces. I employ Critical Ethnography paired with 36 interviews with youth and adults. I observed two club soccer teams and one soccer league in Las Vegas (the league was a public community league that primarily caters …
Image Processing Techniques For Water Droplet Penetration Time And Contact Angle Estimation, Sai Balaji Jai Kumar
Image Processing Techniques For Water Droplet Penetration Time And Contact Angle Estimation, Sai Balaji Jai Kumar
UNLV Theses, Dissertations, Professional Papers, and Capstones
Water droplet behavior on soil surfaces plays a critical role in numerous environmental processes, including soil erosion, hydrological dynamics, and ecosystem health. Accurate characterization of soil water repellency, quantified by parameters such as water droplet penetration time (WDPT) and contact angles (WDCA), is essential for informed decision-making in agricultural management, forestry practices, and land-use planning. Despite the significance of these parameters, challenges exist in reliably estimating them due to the complex and dynamic nature of soil-water interactions. This thesis address challenges in estimating WDPT and WDCA, by leveraging state-of-the-art image processing techniques and machine learning algorithms. The research focuses on …
Scoring Single-Sample Pathway Expression Level Using Graph Autoencoder, Eunyoung Jang
Scoring Single-Sample Pathway Expression Level Using Graph Autoencoder, Eunyoung Jang
UNLV Theses, Dissertations, Professional Papers, and Capstones
Single-sample pathway analysis (ssPA) is a bioinformatics technique used to assess the activity of biological pathways in individual samples, rather than relying on aggregated data from multiple samples. This approach allows for the detection of pathway activation or suppression in single samples, making it a valuable approach in research and clinical applications where individual variability is critical. In this paper, we propose a deep-learning method that scores individual pathway expression levels using a graph autoencoder. The proposed method provides insights into the biological processes and leverages the high dimensionality of gene expression data by setting the nodes in the neural …
A Culturally Responsive Approach To Mindfulness And Mental Health Informal Education, Anastasia Jerbic-Gonzalez
A Culturally Responsive Approach To Mindfulness And Mental Health Informal Education, Anastasia Jerbic-Gonzalez
UNLV Theses, Dissertations, Professional Papers, and Capstones
The qualitative study examined the mental health aspects of marginalized elementary school students in addition to constructing and implementing a culturally responsive and sustaining mindfulness program to observe if there were improvements regarding emotional regulation and awareness. To achieve this, I constructed a culturally responsive and sustaining mindfulness program, implemented this program, and studied the responses from students. The research questions that fueled this study include: (1) What types of negative emotions do marginalized elementary students experience? What is the root cause for marginalized students experiencing negative emotions during their elementary school years? (2) How can incorporating mindfulness techniques embedded …
An Analysis Of The Propagation Of Gravitational Radiation Under A Graviton Of Nonzero Mass And Its Implications For Cosmological Measurements, Margaret Johnston
An Analysis Of The Propagation Of Gravitational Radiation Under A Graviton Of Nonzero Mass And Its Implications For Cosmological Measurements, Margaret Johnston
UNLV Theses, Dissertations, Professional Papers, and Capstones
Under the assumptions of General Relativity (GR), gravitational waves propagate at the speed of light and their mediation can be represented as a particle through a massless graviton. We investigate the impact and observability of the presence of a massive graviton, how such a modification to GR would also modify the observed gravitational waves from astrophysical sources, and how this effect can be used as an independent measurement of cosmmological parameters, including the Hubble parameter H0. We simulate the impact of a massive graviton on compact binary coalescence observation in a near-future LIGO-Virgo-KAGRA interferometer network through a modification to the …
Preparing Anti-Racist Teachers: A Case Study Of Preservice Teachers’ Perceptions Of Racism And Program Coherence In Equity-Centered Teacher Preparation, Mildred Joyner
UNLV Theses, Dissertations, Professional Papers, and Capstones
This case study explored the perceptions preservice teachers had regarding racism in educational contexts, how those perceptions were shaped by their teacher education program, and to what extent their teacher education program had coherence in preparing anti-racist teachers. Within the context of a large, minority serving institution in the Southwest preparing teachers for one of the most racially, linguistically, and socioeconomically diverse districts in the country, the need to prepare anti-racist teachers who are able to recognize and remedy opportunity gaps for multi-marginalized students is evident. Because little research has focused on the perceptions and lived experiences preservice teachers have …
Evaluation Of Electrochemical Corrosion, Electrodeposition, And Other Electroanalytical Methods As Investigative Forensic Techniques For Advancing Metal Substrate Analysis, Crystal C. Kitanovski
Evaluation Of Electrochemical Corrosion, Electrodeposition, And Other Electroanalytical Methods As Investigative Forensic Techniques For Advancing Metal Substrate Analysis, Crystal C. Kitanovski
UNLV Theses, Dissertations, Professional Papers, and Capstones
Friction ridge skin, bearing unique patterns of epidermal ridges commonly known as fingerprints, has served as a crucial tool for identification since ancient times, with its utilization dating back to Chinese culture around 221 B.C. Today, friction ridge skin impressions remain vital evidence in forensic investigations, aiding in the identification of suspects. While fingerprints, palm prints, and footprints can all serve as identifying markers, this dissertation focuses specifically on fingerprints, broadly classified as visible or latent. Latent fingerprints, though invisible to the naked eye, constitute the majority of prints collected from crime scenes, necessitating physical, chemical, or physicochemical processing for …
Interpretable And Evidential Deep Learning For Medical Image Analysis, Sai Chandra Kosaraju
Interpretable And Evidential Deep Learning For Medical Image Analysis, Sai Chandra Kosaraju
UNLV Theses, Dissertations, Professional Papers, and Capstones
Automatic histopathological Whole Slide Image (WSI) analysis has been highlighted along with the advancements in microscopic imaging techniques, but manual examination and diagnosis of WSIs are time-consuming and tiresome. Recently, deep convolutional neural networks have succeeded in histopathological image analysis. Especially, Convolutional Neural Networks CNN models such as Inception and DenseNet have achieved effective performance. However, automatic histopathological WSI analysis still has significant drawbacks such as considering deep learning as black-box models, predicting disease independently on a small part of images (patch images) extracted from WSIs, limitations in predicting a single slide-based score for a patient, and capturing disease-specific morphology …
Psychopathy And Moral Decision Making, Dimitra Kourtesi
Psychopathy And Moral Decision Making, Dimitra Kourtesi
UNLV Theses, Dissertations, Professional Papers, and Capstones
Since the 1800s, psychopathy has been regarded as the absence of morality. The goal of our study was to explore whether psychopathic traits can affect the moral decision-making process in sacrificial moral dilemmas. Participants completed multiple self-report measures of psychopathic traits, utilitarian tendencies, and 16 sacrificial moral dilemma vignettes. After each hypothetical vignette, participants decided whether they believed it was morally right, permissible, and whether they behaviorally intended to sacrifice one person to save five people. Positive correlations emerged among all variables, which allowed us to perform a mediation analysis. Instrumental Harm – the idea of sacrificing one individual to …
The Development Of Environmental Dna (Edna) Sampling For Arbovirus Vector Surveillance In Southern Nevada, Katharine Brooke Major
The Development Of Environmental Dna (Edna) Sampling For Arbovirus Vector Surveillance In Southern Nevada, Katharine Brooke Major
UNLV Theses, Dissertations, Professional Papers, and Capstones
Vector-borne diseases account for 17% of all infectious diseases worldwide and are responsible for more than 700,000 deaths annually. Two-thirds of the global population are at risk of arthropod-borne RNA viruses (arboviruses), spread by mosquitoes, ticks, and sandflies, with these pathogens accounting for 37% of all emerging human diseases. Arboviruses are becoming increasingly important causes of neurological disease in the United States, presenting a significant public health problem. In the absence of available vaccines and efficacious treatment options, accurate, rapid, and cost-effective surveillance of arbovirus vectors is critical for monitoring species distribution and mitigating disease transmission risk. Currently, mosquito vector …
A Transcription For Piccolo Trumpet With Historical Context And Methodology: Oboe Quartet Kv 370/368b By Wolfgang Amadeus Mozart, Christopher Massa
A Transcription For Piccolo Trumpet With Historical Context And Methodology: Oboe Quartet Kv 370/368b By Wolfgang Amadeus Mozart, Christopher Massa
UNLV Theses, Dissertations, Professional Papers, and Capstones
This document explores the challenges of transcribing Mozart's Oboe Quartet for piccolo trumpet, emphasizing performance practices. Both oboe and trumpet navigate mid-high to high ranges with fluidity, underscoring the importance of mastering flexibility through study and practice. This document examines the process of transcription by comparing other successful transcriptions.Achieving balance among instruments is crucial due to the piccolo trumpet's volume compared to the oboe or violin. Careful dynamics adjustment ensures harmonious blending within the ensemble, allowing each instrument to shine without overpowering the others. Breath management poses another significant challenge, and while similarities between oboe and piccolo trumpet breath control …
Application Of Machine Learning Algorithms In Healthcare, Dwaipayan Mukhopadhyay
Application Of Machine Learning Algorithms In Healthcare, Dwaipayan Mukhopadhyay
UNLV Theses, Dissertations, Professional Papers, and Capstones
Machine Learning (ML) is a subset of artificial intelligence that has made substantial strides in predicting and identifying health emergencies, disease populations, and disease state and immune response, amongst a few fields of healthcare. Here we provide a brief overview of machine learning-based approaches and learning algorithms. Second, we discuss a general procedure of ML and review some studies presented in ML application for several healthcare fields. We also briefly discuss the risks and challenges of ML application to healthcare.This dissertation also consists of four different cases in healthcare where we have applied ML techniques on real life data sets. …
Implementing Radformation At Personalized Radiation Oncology: Enhancing Efficiency And Precision, Devin J. Peart
Implementing Radformation At Personalized Radiation Oncology: Enhancing Efficiency And Precision, Devin J. Peart
UNLV Theses, Dissertations, Professional Papers, and Capstones
RadMachine is a data quality management application implemented at Personalized Radiation Oncology (PRO) to streamline quality assurance (QA) tests. It offers various functions assisting medical physicists in a radiation oncology clinic, including inputting, analyzing, managing, exporting, and monitoring QA data. Physicists create test lists following the recommendations provided by the American Association of Medical Physics (AAPM). These lists track results for units such as the Varian Edge, Varian BRAVOS, and Siemens SOMATOM go.Open Pro CT scanner. Ancillary equipment used for testing also has assigned test lists to store calibration factors and receive calibration expiration reminders. The primary goal of utilizing …
Case Trial Evaluations Of An Optimization Approach To Mental Health And Sport Performance For Adolescent Athletes, Dereck Davy Phrathep
Case Trial Evaluations Of An Optimization Approach To Mental Health And Sport Performance For Adolescent Athletes, Dereck Davy Phrathep
UNLV Theses, Dissertations, Professional Papers, and Capstones
This dissertation will consist of five chapters – an introduction (Chapter 1), three original empirical studies (Chapters 2-4), and a conclusion (Chapter 5). Chapter 2 was accepted for publication by the Sport Social Work Journal (Phrathep et al., 2022a). Chapter 3 was accepted for publication by Clinical Case Studies (Phrathep et al., 2022b). Chapter 4 was accepted for publication by Frontiers in Sports and Active Living (Phrathep et al., 2023). These three manuscripts are linked by a primary interest in the evaluation of an optimization approach as an efficacious intervention for optimizing mental health and sport performance among adolescent athletes …
Mining Gambling Data For Modeling Gambling Behavior Patterns, Piyush Aniruddha Puranik
Mining Gambling Data For Modeling Gambling Behavior Patterns, Piyush Aniruddha Puranik
UNLV Theses, Dissertations, Professional Papers, and Capstones
Understanding player behavior for responsible gambling research is a difficult task due to the lack of data on players’ activities. Past studies in this area are largely limited to publicly available behavioral data or aggregated players data. Problem gambling in gamblers is typically identified only after they have already been addicted or have already been engaging in problematic gambling behavior. Furthermore, “risky” gambling behavior has historically been difficult to define due to the varying patterns of gambling activity that could potentially be attributed to it.In this dissertation we illustrate the methodology and algorithms used to engineer financial data for further …
Under The Neon Lights: Examining The Memories Of Las Vegas' Route 91 Harvest Music Festival, William B. Ridgway
Under The Neon Lights: Examining The Memories Of Las Vegas' Route 91 Harvest Music Festival, William B. Ridgway
UNLV Theses, Dissertations, Professional Papers, and Capstones
The aim of the current study was to identify patterns of meaning in the trauma narratives of Route 91 Harvest survivors. We undertook a thematic analysis to examine survivors’ narratives collected shortly after the event (i.e., within one month), allowing for a more in-depth understanding of what survivors tended to emphasize or gravitate toward when recalling the episode of mass violence that resulted in the deadliest mass shooting in modern American history. From the rich thematic content emerged a dominant theme of memory for contextual details—specifically, sensory-perceptual features, time, and space. Specifically, Route 91 Harvest survivors reported vivid sensory experiences, …
The Role Of Cognitive Dysfunction In Late-Life Depression, Matthew Schurr
The Role Of Cognitive Dysfunction In Late-Life Depression, Matthew Schurr
UNLV Theses, Dissertations, Professional Papers, and Capstones
Depression is one of the most common psychiatric concerns in older adults. Because of the intersection of biological, emotional, social, and cognitive factors that are at play in depression, symptoms are often heterogeneous in presence and severity. In combination with the expected changes in cognitive abilities as one ages, late-life depression can be additive to these changes. The higher risks of neurodegenerative processes and vascular events in later life can cause, magnify, or accelerate cognitive decline. As such, individuals with late-life depression often present with a complex array of problems that can impact cognition and functioning, and thus complicate the …
Dynamic Model Of An Overhead Crane, Leonard Ruesga
Dynamic Model Of An Overhead Crane, Leonard Ruesga
UNLV Theses, Dissertations, Professional Papers, and Capstones
In this thesis a novel spatial model of an overhead crane was developed. The model includes: bridge, trolley, driving and follower wheels for the bridge and trolley, drum, cable, and the payload. The model accounts for the winding/unwinding of the cable around the drum as the payload is raised/lowered. The cable and the payload were considered as rigid bodies with uniformly distributed mass. First, the kinematic equations of the model were developed by using constraint equations. Second, the dynamic equations were derived through use of Newton’s Laws. Developing the rotational dynamic equations required the determination of the angular momentum vectors …
A Heuristic Approach To Operations And Control Of Btm-Ders For Bill Management And Grid Services, Md Arshad Rashid Shaon
A Heuristic Approach To Operations And Control Of Btm-Ders For Bill Management And Grid Services, Md Arshad Rashid Shaon
UNLV Theses, Dissertations, Professional Papers, and Capstones
Behind-The-Meter (BTM) distributed energy resources (DERs) have emerged as a critical and transformative force within the energy sector. These decentralized energy assets, which include solar photovoltaic (PV) systems, battery energy storage systems (BESS), and thermostatically controlled loads (TCLs), are increasingly essential for empowering customers by granting them greater control over their energy production and consumption, thereby reducing reliance on centralized power sources. Additionally, they have the potential to play a pivotal role in enhancing grid resilience by providing grid services. This study investigates the management of customer electricity bills and grid services through the integration of various BTM-DERs, particularly solar …
Uvc And Planetary Habitability: Insights From Desert Lichens And Cyanobacteria, Tejinder Singh
Uvc And Planetary Habitability: Insights From Desert Lichens And Cyanobacteria, Tejinder Singh
UNLV Theses, Dissertations, Professional Papers, and Capstones
An important question in astrobiology is whether life can exist under the levels of UVC radiation found on Archean Earth, Mars, and exoplanets. We investigated this question by studying the UVC survival of colonial cyanobacterium and lichens that grow in harsh desert environments and possess natural sunscreens. We irradiated them nonstop in a desiccated state with a UVC flux closely representing the upper limit on those planets: 55-60 W/m². After irradiation, we rehydrated and assessed their survival using chlorophyll fluorometry and by counting the number of viable colonies that formed on agar plates. All three study organisms survived two to …