Digital Commons Network^™

Genomic Analysis Of Paenibacillus Larvae Bacteriophages, Casey Stamereilers

UNLV Theses, Dissertations, Professional Papers, and Capstones

American Foulbrood is the most destructive bacterial infection of the honeybee (Apis mellifera) and is caused by the Gram-positive, spore forming bacterium Paenibacillus larvae. Current treatment methods rely on antibiotics, but antibiotics treatments are experiencing a reduction in efficacy due to the recent rise in antibiotic resistant strains of P. larvae. This has been a major catalyst for exploration of alternative treatment methods. Phage therapy is an alternative treatment method that uses viruses that exclusively infect bacteria, known as bacteriophages (phages), to combat bacterial infections. Several experimental studies have shown that phages P. larvae phages are effective at lysing P. …

An Intervention To Improve Nurses’ Knowledge, Perceived Safety, And Confidence In Identifying And Managing Workplace Violence: A Translation Of Evidence Into Practice, Kayla Sullivan

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Occupational Safety and Health Administration (OSHA) reports that over two million workers are victims of workplace violence (WPV) (Papa, 2013). Registered nurses are subjected to high risk for workplace violence from patients and visitors, with 25.5% reporting at least one victimization incident (Gillespie et al., 2013). Research indicates that WPV has a significant impact on nurses' quality of working life, job satisfaction levels, turnover rates and has also been shown to negatively impact efficiency and productivity (Gacki-Smith et al., 2009). ED nurses are at substantial occupational risk for workplace violence. Emergency departments have been identified as areas within the …

An Evaluation Of Care Coordination In Reducing Depression Symptoms And Emergency Room Visits, Stacy Sumpter

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background: Individuals living with multiple chronic conditions (MCC) account for 26% of the population; however, they consume 84% of healthcare resources, are three times more likely to have depression than healthy individuals, and have increase emergency room (ER) visits and healthcare resource use. This population requires coordinated health care to reduce unnecessary spending and the misappropriation of healthcare resources. The purpose of this project was to evaluate the efficacy of care coordination (CC) and the support system it provides in lowering depression symptoms and ER visit frequency as a viable measure to reduce overall healthcare costs.

Methods: The healthcare providers, …

Scardovia Wiggsiae And Streptococcus Sobrinus Prevalence Among Orthodontic And Non-Orthodontic Patients, Melissa Trumbo

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background: Dental cavities or caries have been identified as among the most prevalent of preventable oral conditions. However, studies are discovering new information regarding the incidence and prevalence of several cariogenic organisms, including Streptococcus mutans (SM), the recently discovered Scardovia wiggsiae (SW), as well as Streptococcus sobrinus (SS). These studies have revealed varying prevalence among different populations, such as those undergoing orthodontic treatment. Based upon this information, the main goal of the current study was to assess the prevalence of specific cariogenic organisms (SS and SW) within saliva samples originally obtained from a dental school-based clinic.

Methods: The protocol for …

Examining The Experiences Of Lgbtq Dpt Students: A Critical Ethnography, Catherine Turner

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study was to examine the experiences of LGBTQ Doctor of Physical Therapy (DPT) students at a large public university in the south-western United States, as it relates to the culture and climate of the program and campus. The LGBTQ community faces its own unique health disparities. Research in medicine suggests improving the diversity of the healthcare profession is a vital component in improving access to care, and this requires the creation of inclusive and supportive educational environments for LGBTQ identifying healthcare students. However, minimal research exists examining the experiences of LGBTQ physical therapy students.

The study …

Assessment Of The Infrazygomatic Crest And Distal Infrazygomatic Crest For Bone Depth And Miniscrew Insertion, Kyle C. Tuttle

UNLV Theses, Dissertations, Professional Papers, and Capstones

The aim of this study was to analyze and compare the bone depth at various postulated miniscrew insertion angles in both the Infrazygomatic Crest (IZC) and Distal Infrazygomatic Crest (DIZC) regions. Furthermore, root morphologies of the maxillary 1st and 2nd molars and their effect on bone depth and the various miniscrew insertion angles were analyzed.

A total of 69 CBCT images were collected from pre-orthodontic adult patients at the UNLV orthodontic residency clinic. Bone depth measurements were made at 8 postulated miniscrew insertion angles starting at 40° up to 75°. All measurements were recorded from the buccal bone at the …

Food Insecurity And Adiposity Among Children And Adults Nhanes 2015-2016, Denise Vidal

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background: Obesity is a preventable disease that has been associated with many adverse health outcomes. A possible factor that may influence adiposity development is food insecurity. Although several epidemiological studies have been conducted examining the association between food insecurity and adiposity among children and adults, results have been inconsistent. Objective: This cross-sectional study investigates the relationship between food insecurity and adiposity among children and adults using recent data from a representative sample of the US population. Methods: We examined 3,391 adults and 2,837 children from the National Health and Nutrition Examination Survey (NHANES) 2015-2016. Household food insecurity was assessed using …

Opioid And Naloxone Training In A Rural School District, Allyson C. Waldron

UNLV Theses, Dissertations, Professional Papers, and Capstones

The opioid epidemic is a national health emergency in the United States, with over 128 people dying each day due to an opioid overdose. It is estimated that 4.3 million people over the age of 12 use opioids without a medical need, and 1.3 million youth ages 12-17 use opioids inappropriately. Drug overdose deaths have become the leading cause of accidental death in the United States, prompting the U.S. Surgeon General and the World Health Organization to advise that more Americans have access to naloxone and understand how to use this life-saving drug correctly. Naloxone is an opioid antagonist, used …

The Karen Genre: Digital Memes As An Influencer Of Political And Social Discourse, Marc Wardle

UNLV Theses, Dissertations, Professional Papers, and Capstones

Social Media platforms are a source of transformation within the democratic process. Digital memes, seemingly facile and frivolous, contain a collection of dense and broad meanings that have become creative forms of political and social expression. Many complex messages can be communicated to mass audiences through mediated interpersonal communication platforms on social media through the usage of memes. This phenomenon creates what Limor Shifman refers to as a memeplexe. The focus of this study is to explore the transformative nature of the democratic process within digital and internet culture and the formation of an emergent genre of memes called ‘Karen.’ …

Bystanders’ Willingness To Report Crimes And Cooperate With Legal Authorities: The Role Of Individual And Contextual Differences, Matthew P. West

UNLV Theses, Dissertations, Professional Papers, and Capstones

Studies and victimization surveys suggest that many, if not most, crimes are not reported to legal authorities. The overarching aim of this project was to examine the roles of individual and contextual differences in bystanders’ willingness to report crimes to, and cooperate with, legal authorities. A sample of 1,434 adults in the U.S. completed a survey in which they read and responded to crime vignettes and responded to items theoretically measuring individual differences in legal socialization, perceived legitimacy, the need for cognitive closure, right-wing authoritarianism, social dominance orientation, and the general willingness to cooperate. Bystanders’ relationship to the victim, relationship …

Distributions And Habitat Associations Of Blue Point Pyrgulopsis And Blue Point Tryonia, Chenoa Janine Wilcox

UNLV Theses, Dissertations, Professional Papers, and Capstones

Springsnails and other crenophilic species are often of conservation concern due to endemism, narrow habitat requirements, and susceptibility to habitat degradation. Because there is a distinct lack of natural history information for many of these organisms, management of species that are of concern is often based on data from non-target species related to the species of interest. In this thesis, I provide background information regarding springsnails in western North America (Chapter 1), describe a study investigating the distribution and habitat associations of two springsnails endemic to a single spring (Chapter 2), and provide supplemental information on habitat characteristics associated with …

Understanding Visual Language And Visual Literacy: A Case Study Of Young Children’S Meaning Making Of Complex Wordless Picturebooks, Yunying Xu

UNLV Theses, Dissertations, Professional Papers, and Capstones

The world is quickly evolving and young children interact with technology more often and may have more interactions with technology than print materials. Incorporating wordless picturebooks into literacy instruction, specifically complex books that include multiple storylines, unconventional structures, figurative visual language, etc., provides a perfect medium for teachers to address the demands of this increasingly multimodal world and also the Common Core State Standards. This dissertation is a qualitative case study (Yin, 2017) that aimed to investigate how young children aged 3 to 6 made meaning of complex wordless picturebooks. This dissertation attempted to answer the following four research questions: …

Gambling Behaviors Among Vip Hosts In Macao, Tiange Xu

UNLV Theses, Dissertations, Professional Papers, and Capstones

Many studies have shown that casino employees are at-risk gamblers, but limited research on this topic has been conducted in Asia. Given the unique gambling setting of Macao, it would be meaningful to investigate the gambling behaviors among VIP Hosts, who play an important role in the gaming market. Specifically, the present study examined the relationship between problem gambling, cognitive distortions, and potential risk and protective factors. The author used a snowball technique to recruit participants and an online survey to collect data. A total of 41 responses were included in the data analysis. The results showed that VIP Hosts …

Do You Need A Break From Environmental Duties? Apply The Norm Activation Theory To Examine Pro Environmental Behaviors, Yanjia Yang

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study aimed at examining how social environmental norms affect tourists’ pro-environmental behaviors (PEBs) in the destination and home contexts by employing the focus theory of normative conduct and norm activation theory. It also tested the moderating effects of the belief of a vacation break from environmental duties and the mediating effect of personal norms in the relationships between social-environmental norms and PEBs. A total of 400 usable surveys was collected through an online survey. Both t-test and regression analysis techniques were employed to analyze the data. There were two major findings from this study. First, PEBs became weaker when …

Acoustic And Semantic Processing Of Speech And Non-Speech Sounds In Children With Autism Spectrum Disorders, Breanne D. Yerkes

UNLV Theses, Dissertations, Professional Papers, and Capstones

The processing of semantically meaningful non-speech and speech sounds requires the use of acoustic and higher-order information, such as categorical knowledge and semantic context. Individuals with an autism spectrum disorder (ASD) have been theorized to show enhanced processing of acoustic features and impaired processing of contextual information. The current study investigated how children with and without ASD use acoustic and semantic information during an auditory change detection task and semantic context during a speech-in-noise task. Furthermore, relationships among IQ, the presence of ASD symptoms and the use of acoustic and semantic information across the two tasks were examined among typically …

Degradation Of Antibiotics In Aqueous Phase Using Pms Catalytic Decomposition With Zero-Valent Iron Nanoparticles Immobilized In Sba-15, Ahdee Bluma Zeidman

UNLV Theses, Dissertations, Professional Papers, and Capstones

Zero-valent iron nanoparticles (nZVI) have been studied as an option for soil remediation and water treatment for many years. The capability of nZVI to produce oxidation/reduction processes, depending on the reaction conditions, has attracted great interest with their major drawback being reactivity loss through agglomeration. The loss in nZVI surface area has been reported to be prevented through immobilization onto a porous media (e.g., SBA-15, MCM-41, or zeolites). In this work, a mesoporous silica structure (SBA-15) is used as an nZVI supporting material to enhance its reactivity and promote peroxymonosulfate (PMS) catalytic decomposition for the degradation of antibiotics in aqueous …

The Bridge From Etude To Repertoire: Hermann Six Concert Studies, Op. 18, Yuxin Zhao

UNLV Theses, Dissertations, Professional Papers, and Capstones

Scales and etudes are considered essential steps in developing an advanced technique on any instrument. The viola, as a member of the string family, was not nearly as popular or recognized as the violin or cello before the twentieth century. It is the same situation with the viola’s repertory and etudes: there are many pieces transposed from the cello or clarinet, for example, and many etudes are borrowed from the violin. However, even though the viola has a similar shape and playing posture to the violin, they are still different instruments with a significantly different technique. Violists should therefore avoid …

Kaleidoscope Of Urban Evapotranspiration: Exploring The Science And Modeling Approaches, Rubab Saher

UNLV Theses, Dissertations, Professional Papers, and Capstones

Urban evapotranspiration is a complex physical process. It depends on various critical drivers, including the land surface temperature (LST), surface albedo, landscape types, and building orientations. All of these factors create difficulties in the estimation of evapotranspiration (ET) by changing the microclimate conditions. The literature has oversimplified microclimate conditions by considering temperature difference as the only variable defining climate. The physical process depends on land-use changes, building proximities, and landscape types. This study devised three objectives to understand the microclimate effects on ET.

In the first objective, land-use change effects on LST, surface albedo, and ET were analyzed over a …

Does Social Support Moderate The Association Between Income And Food Security Status Among Seniors Living In Southern Nevada?, Adugna Teka Siweya

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background: Income is the strongest predictor of food insecurity among seniors, and social support also an essential factor to help mitigate the effects of food insecurity. However, little is known about the potential role that social support may play as a moderator of the association between income and food insecurity. Thus, we aim to examine social support as a moderator for the relationship between income and food insecurity among seniors. Methods: Logistic regression models were used to analyze data collected in 2019 from seniors residing in Southern Nevada. Predictors of food insecurity, sociodemographic factors, social support variables, and income and …

A Study On Mukbang User’S Consuming Behavior, Hyo Geun Song

UNLV Theses, Dissertations, Professional Papers, and Capstones

The main focus of this study is to examines what factors influence the tendency towards the Mukbang, and to understand the effectiveness of Mukbang. The specific purpose of this research is to examines how do the motivation of watching Mukbang affect the gratification obtained after watching Mukbang and what is the impact of the Mukbang on the utilitarian/ hedonic shopping values among Mukbang users and how do the perceived utilitarian and hedonic shopping values influence the user’s purchase intention. To find motivations of watching Mukbang, interview was performed. Five factors were developed from a interview of the responses to the …

Predictors Of Violent And Non-Violent Institutional Infractions Of Death Row Prisoners, Tereza Trejbalová

UNLV Theses, Dissertations, Professional Papers, and Capstones

Institutional misconduct has been widely researched in the criminological literature for more than 50 years, leading to an extensive knowledge about how and why different prisoners misbehave while incarcerated. Nevertheless, one correctional population has been mostly left out of these research pursuits – death row prisoners (DRPs). Although DRPs form a small fraction of the overall number of incarcerated individuals in the US, they tend to spend more than 20 years in maximum security facilities and require a considerable amount of resources. As such, it is imperative for the safety of the facility, the staff, and the prisoners themselves to …

Prograde Metamorphism And Upper-Crustal Cooling In The Northern Panamint Range, California: New Insights Into The Jurassic And Mid-Cretaceous Evolution Of The Southern Sevier Fold-Thrust Belt, Elijah A. Turner

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Jurassic-Cretaceous southern Sevier fold-thrust belt, which experiences changes in orientation and structural style as it approaches intersection with the Mesozoic continental arc, has been pervasively overprinted by Neogene-Quaternary faulting, rendering its evolution enigmatic. Raman spectroscopy of carbonaceous material (RSCM) thermometry data from 14 samples and zircon (U-Th)/He (ZHe) thermochronology data from 23 samples collected in the northern Panamint Range illuminate the history of metamorphism and upper-crustal cooling associated with this belt of shortening structures. Best estimate peak temperatures derived from RSCM thermometry increase from 166 ± 19°C at 2.5 km structural depth (measured from the top of the exposed …

Juvenile Conifer Growth And Regeneration Across Diverse Climatic And Environmental Conditions In The Southwestern United States, Nikki L. Pirtel

UNLV Theses, Dissertations, Professional Papers, and Capstones

Juvenile conifer germination, growth, and survival will play important roles in the persistence of coniferous forests and woodlands in the southwestern United States (SWUS), yet it is unclear how juvenile conifers allocate aboveground and belowground early growth and if growth differs between conifer and ecosystem types. Descriptions of growth characteristics may allude to the types of stress juveniles experience in their environments, how they morphologically respond to stress, and how they may be able to survive stress to persist in their current locations or expand into new areas. In Chapter 1, I described the growth characteristics of 4 juvenile conifer …

Blue Lives Matter: Identity And The Internet, Jennifer M. Stevens

UNLV Theses, Dissertations, Professional Papers, and Capstones

Social movements scholars have long studied the role of identity, both individual and collective, in regard to social movement formation, mobilization, and persistence (Snow et al. 1986, Kellner 1995, Darnovsly, Epstein, and Flacks 1995, Jasper 1997, Cerulo 1997, Bernstein 1997; 2002, and Futrell, Simi, and Gottschalk 2006). Advances in technology have made the Internet, and particularly social media, a powerful piece in the activist’s toolkit. While scholars have researched what the Internet means for different social movement organizations, there are many questions to address. I examine the social media platforms (Facebook and Instagram) of the pro-policing social movement organization Blue …

Assessing The Validity And Reliability Of Several Heart Rate Monitors In Wearable Technology While Mountain Biking, Bryson Carrier

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study sought to assess the validity and reliability of several heart rate (HR) monitors during mountain biking (MTB), compared to the Polar H7® HR monitor, used as the criterion device. Methods: A total of 20 participants completed two MTB trials wearing 6 HR monitors (1 criterion, 5 test devices). HR was recorded on a second-by-second basis for all devices analyzed. After data processing, validity measures were calculated, including 1. Error analysis: mean absolute percentage errors (MAPE), mean absolute error (MAE), and mean error (ME), and 2. Correlation analysis: Lin’s concordance correlation coefficient (CCC) and Pearson’s correlation coefficient ®. Validity …

Cognitive Autonomy Supportive Teaching Behaviors: Perceptions Of Four Groups Of Educators, Fatmana Kara Deniz

UNLV Theses, Dissertations, Professional Papers, and Capstones

Cognitive autonomy skills are essential for all students to further their academic performance, prepare for adulthood, and gain better employment opportunities (Beckert, 2007; Beckert et al., 2012; Benlahcene et al., 2019; Harris & Beckert, 2018; Kim et al., 2019; Lee et al., 2010; Michael & Attias, 2016). These skills involve the ability to evaluate thinking, voice opinions, make decisions, self-assess, and comparatively validate oneself (Beckert, 2005, 2007). Autonomy, as a broader construct of cognitive autonomy, is not an innate ability and learners must be provided opportunities to experience, develop, and achieve these skills in the classroom (Berry et al., 2012; …

The Frontier Of The Labor Movement: Latinas And The Longest Strike In Twentieth-Century Las Vegas, Maribel Estrada Calderón

UNLV Theses, Dissertations, Professional Papers, and Capstones

After the mid-twentieth century, the American labor movement began to decline. Across the U.S., Union memberships and the rate of work stoppages decreased. In the hospitality-industry-driven city of Las Vegas, Nevada, however, the Culinary Workers Union Local 226 more than doubled its membership. In 1989, the Elardi family purchased the Frontier Hotel and Casino and began to eliminate workers’ benefits. Led by the Culinary Union, workers went on strike on September 21, 1991, beginning one of the longest strikes in twentieth-century Las Vegas. Latina workers played critical roles in organizing and maintaining this successful, six-year-long battle against the Elardis. Positioning …

Infants' Facial Emotion Recognition, Umme Fatema

UNLV Theses, Dissertations, Professional Papers, and Capstones

Facial Emotion Recognition (FER) has become a popular computer vision topic and attracted a lot of researchers. However, these researches mostly focus on adult facial emotion. Infants’ facial structure and expression of emotions differ from adults’. That is why our target is to create a model that particularly focuses on infants’ facial emotions. In this work, we classify three types of emotions: positive, negative, and neutral. Two datasets are used in this work. One is an image-based dataset named ‘The City’ that consists of 154 images of infants aged 0-12 months. Another is the Rebel Dataset from the Department of …

Monumentalizing A Political Candidacy: Robert Lowell And Eugene Mccarthy’S History, Jeremy Freeman

UNLV Theses, Dissertations, Professional Papers, and Capstones

History (1973) remains Robert Lowell’s most criticized collection of poetry. This was largely because of the critical consensus that Lowell, the most well-known confessional poet, had moved too far away from the elements of the genre in his later works. This reception, coupled with his public mental health episodes, highly publicized divorce from Elizabeth Hardwick in 1972, and personal politics, had a negative impact on the legacy of the author. In revisiting this work, I argue that Lowell’s History is just as confessional as his earlier collections but presents the confessional mode in a different way. In doing so, Lowell …

Nonprofit Data Management: A Stage Model, Ashley M. Hernandez-Hall

UNLV Theses, Dissertations, Professional Papers, and Capstones

Managing nonprofit data is both complicated and essential. Nonprofits, while struggling to manage and utilize data to its fullest potential, are increasingly required to do so for funding purposes. Despite the increased pressure on nonprofit managers to report more outcomes to grant funders, little research is available to guide the data management process in nonprofits. Research that does exist is primarily focused on the for-profit or business sector, which is operationally and fundamentally different than nonprofits. For example, for-profit entities typically do not have the same restrictions on how to use funds, such as a percentage cap on spending for …