Digital Commons Network^™

Motivation And Gesture In Foreign And Second Language Development: A Sociocultural Study Of Chinese Learners Of English, Lixian Tian

UNLV Theses, Dissertations, Professional Papers, and Capstones

This dissertation study investigated motivation as related to goal-directed activity and gesture awareness as well as their interplay in second and foreign language development in different English as a foreign language (EFL) and English as a second language (ESL) contexts. This study included four groups of Chinese learners of English. The first EFL group consisted of college students in China learning English without intention of studying abroad (G1) and the second EFL group in China included Chinese learners of English who were learning English to prepare to study abroad (G2). Participants in the first ESL group were living and studying …

The Affective Perceptual Model: Enhancing Communication Quality For Persons With Pimd, Jadin Tredup

UNLV Theses, Dissertations, Professional Papers, and Capstones

Methods for prolonged compassionate care for persons with Profound Intellectual and Multiple Disabilities (PIMD) require a rotating cast of import people in the subjects life in order to facilitate interaction with the external environment. As subjects continue to age, dependency on these people increases with complexity of communications while the quality of communication decreases. It is theorized that a machine learning (ML) system could replicate the attuning process and replace these people to promote independence. This thesis extends this idea to develop a conceptual and formal model and system prototype.

The main contributions of this thesis are: (1) proposal of …

Forget Me Not & Other Stories, Zach Wilson

UNLV Theses, Dissertations, Professional Papers, and Capstones

My thesis manuscript Forget Me Not & Other Stories is composed of several short stories and the first section of a novel. The first drafts of these stories were written during my first and second years in the program while my primary focus this semester has been the novel. I believe this thesis reflects my growth as both a writer and critical reader of fiction as a result of my time here. Much of the work included here began as assignments for a creative class, including an imitation of Marilyn Robinson’s’ Gilead written for Professor Doug Unger’s Forms of Fiction. …

Leadership Development In Nursing: Planning From The Bedside To The Executive Suite, Janet C. Wright

UNLV Theses, Dissertations, Professional Papers, and Capstones

Nurses comprise the largest portion of the healthcare sector workforce over 4 million professional nurses licensed in the United States (National Council of State Boards of Nursing, 2019). Leading within a vast workforce such as nursing requires the nurse leader to have the expertise of the nursing profession along with leadership and business skills to maintain competitiveness in the complex healthcare industry. Consequences of effective leadership include improved patient outcomes, decreased staff turnover, and decreased costs to the organization related to patient outcomes and turnover costs. These results suggest the importance for organizations to ensure their leaders are properly trained …

Changes In Hippocampal-Anterior Cingulate Cortex Interactions During Remote Memory Recall, Ryan A. Wirt

UNLV Theses, Dissertations, Professional Papers, and Capstones

Spatial memory is an important cognitive process that relies on extensive neural networks throughout the brain. The hippocampus (HC) is important for the formation of these memories but over time, in a process referred to as consolidation, recall becomes increasingly reliant on other brain areas. The anterior cingulate cortex (ACC), a region within the medial prefrontal cortex, is important for spatial learning, spatial working memory, and remote memory recall, but the mechanisms underlying recall processes are still unknown. To better understand the role of the ACC and HC during memory recall, we introduced rodents into a series of spatially and …

Chromium(Vi) And Oxyanion Remediation Of Vadose Zone Soils With Zero Valent Iron (Zvi) And Biological Reduction, Nicolas Kim Wong

UNLV Theses, Dissertations, Professional Papers, and Capstones

In areas with high industrial development, soil and groundwater are often heavily contaminated with hexavalent chromium [ Cr(VI) ], which commonly occurs as the oxyanions chromate ( CrO42- ) and dichromate ( Cr2O72- ). By itself, Cr(VI) is a common contaminant in various industrial wastes, but other oxyanions such as nitrate [ NO3- ], chlorate [ ClO3- ], and perchlorate [ ClO4- ] can appear with Cr(VI) as co-contaminants based on the type of industrial waste. Cr(VI) and ClO3- occur as co-contaminants in areas where sodium chlorate is manufactured as a bleaching agent for the pulp and paper industry (ERCO …

Exploring The Utility Of Mindfulness In The Elementary School Classroom, Sarah M. Wells

UNLV Theses, Dissertations, Professional Papers, and Capstones

Current evidence supporting the efficacy of mindfulness training in the K-12 setting is quite limited. In addition there is a lack of theory that is committed explicitly to explaining how a direct mindfulness-achievement effect might appear. This study builds a promising foundation for helping address this gap in the existing literature. Framed within the context of a limited source model of self-regulation, academic achievement and perceptions of third, fourth, and, fifth graders participating in a 3-week mindfulness training program were examined across variables of executive control, and emotional regulation. Mindfulness training produced observed emotional and cognitive benefits, including increased executive …

Beyond Suffrage: Intermarriage, Land, And Meanings Of Citizenship And Marital Naturalization/Expatriation In The United States, Shiori Yamamoto

UNLV Theses, Dissertations, Professional Papers, and Capstones

This dissertation investigates how the laws of marital naturalization/expatriation, namely the Citizenship Act of 1855, the Expatriation Act of 1907, and the Cable Act of 1922 and its amendments throughout the 1930s, impacted the lives of women who married foreigners, especially in the American West, and demonstrates how women directly and indirectly challenged the practice of marital naturalization/expatriation. Those laws demanded women who married foreigners take the nationality of their husbands depending on the race of women and their husbands, making married women’s citizenship dependent on that of their husbands. Particularly under the Expatriation Act of 1907, all American women …

Tree To Grass Water Use Ratios; Assessing Turfgrass’ High Water Use In The Urban Landscape, Tamara Wynne

UNLV Theses, Dissertations, Professional Papers, and Capstones

Water demand in the southwestern United States continues to rise. The population of the Las Vegas Valley doubled from 2000-2010 and now more than two million people call it home. The residential sector uses 60% of all water consumed in the valley. Outdoor urban landscape irrigation is responsible for 70% of all residential use. These landscapes are dominated by trees and turf grass. Although the water use of turf grass species is well studied, there are few published results about the water use of landscape trees in the desert southwest USA. To obtain a more complete picture of the tradeoffs …

Generalized And Higher Dimensional Apollonian Packings, Daniel Lautzenheiser

UNLV Theses, Dissertations, Professional Papers, and Capstones

In this thesis, we show that circle, sphere, and higher dimensional sphere packings may

be realized as subsets of the boundary of hyperbolic space, subject to certain symmetry

conditions based on a discrete group of motions of the hyperbolic space. This leads to

developing and applying counting methods which admit rigorous upper and lower bounds on

the Hausdorff (or Besikovitch) dimension of the residual set of several generalized Apollonian

circle packings. We find that this dimension (which also coincides with the critical exponent

of a zeta-type function) of each packing is strictly greater than that of the Apollonian

packing, supporting …

George Gershwin's Concerto In F: A Wind Orchestra Transcription With Historical Context And Transcription Techniques, Andrew Smouse

UNLV Theses, Dissertations, Professional Papers, and Capstones

This document discusses the transcription process of creating a wind orchestra transcription of George Gershwin’s Concerto in F. Following a brief biography of George Gershwin and historical context of the work, the transcription methodology and precise instrument substitution are provided. The resulting transcription adds a new Gershwin work to the wind band repertoire.

Focusing on three key principles, (1) maintaining the original key, expressive, and technical markings; (2) preserving the original instrumental parts of the orchestral score; and (3) continuing to use the consort and soloistic styles of composition, the document describes the transcription methodology through specific examples. These examples …

Exploring The Pristine Inner Experience Of Individuals In Psychotherapy, Alek Emily Krumm

UNLV Theses, Dissertations, Professional Papers, and Capstones

Inner experience is a frequent topic in psychotherapy and in psychology more broadly, yet very little research has carefully and systematically observed the naturally-occurring experience of psychotherapy clients. The current study begins to fill that gap by using descriptive experience sampling (DES) to survey the inner experience of a small sample of individuals seeking psychotherapy. DES is a method that uses a random-interval beeper to signal participants to pay attention to their pristine inner experiences—the thoughts, feelings, sensations, and so on that are directly apprehendable ‘before the footlights of consciousness’—and describe them in high fidelity. We used about eight days …

Virtually Healthy: Using Virtual Ethnography To Survey Healthcare Seeking Practices Of Transgender Individuals Online, Rogelio Arenas

UNLV Theses, Dissertations, Professional Papers, and Capstones

The use of digital spaces becomes more prevalent as technologies improve and more individuals become connected online. For many, the virtual world may become the primary means by which they engage socially and commercially with larger society. For individuals who identify as transgender or gender nonconforming, the virtual world serves as an environment where the fluidity of identity construction, the security of anonymity, and the physical separation provided by using a digital medium allows for the creation of a secure space for social engagements that may otherwise be discriminatory or infeasible in physical interactions. The stigma, discrimination, and prejudice experienced …

Floating Head Touching Earth, Carrieann Cahall

UNLV Theses, Dissertations, Professional Papers, and Capstones

Floating Head Touching Earth is a collection of short stories centered on themes of identity, historical and intergenerational trauma, familial duty, and self-discovery delivered through prose that is often tinged with surreal or strange elements. Inspired by the craft of writers like Flannery O’Connor and Aimee Bender, my work seeks to explore the power that seemingly small or forgotten experiences can have on one’s psyche in ways that ripple throughout a lifetime. The stories are organized in a manner that track an unraveling of the body, history, relationships and the minds of its various protagonists. The Buddhist mudra, or gesture, …

Machine Learning Prediction Of Primary Tissue Origin Of Cancer From Gene Expression Read Counts, Lohitha Chintham Reddy

UNLV Theses, Dissertations, Professional Papers, and Capstones

Cancer is a group of diseases characterized by the uncontrolled growth and spread of abnormal cells. Generally, manufacturing of proteins by cells is controlled by genes. Each gene must have the correct instructions for making its protein, so that it allows the protein to perform the correct function for the cell. When one or more genes in a cell mutate and create an abnormal protein, that is when cancer begins. An abnormal protein provides different information compared to a normal protein. This can cause cells to multiply uncontrollably and cause cancer.

RNA sequencing (RNA-seq) can be used to figure out …

My Voice Matters: A Telling Case Study Of Student Voice In Institutional Governance, Eboni Monique Caridine

UNLV Theses, Dissertations, Professional Papers, and Capstones

Higher education institutions are complex institutions that are often difficult to navigate. Additionally, the policies and procedures that govern these institutions have the potential to exclude the student's voice. Understanding the power relations and hierarchical structures that exist within the institutions presents another difficult avenue to navigate for students. It is imperative that institutions understand their role in educating students to be civic-minded individuals with the cognitive ability to assist in making informed decisions.

Several scholars (Brubacher & Rudy, 1968; Vaccaro & Covert, 1969; Crane, 1969; McGrath, 1970; Morison, 1970; Baldridge, 1971; May, 2010) describe a time where student input …

The Development Of A Viscoelastic Ellipsoidal Model For Use In Measuring Plantar Tissue Material Properties During Walking, Jessica Lee Deberardinis

UNLV Theses, Dissertations, Professional Papers, and Capstones

Introduction: The mechanical characteristics of the plantar tissues during walking is not well understood as most of the current research focuses on testing specific plantar regions in cadavers or while the feet of the participants are raised. In this work, it is hypothesized that a viscoelastic geometric ellipsoid model used to assess multiple structures of the foot would be accurate and robust. This model would be participant-specific and applicable to the entire stance phase of gait.

Methods: The proposed viscoelastic ellipsoid model would represent several key anatomical areas: Heel, Posterior Midfoot, Anterior Midfoot, Metatarsals 1-2, Metatarsals 3-5, Toe 1, Toe …

Machine Learning Classification Of Primary Tissue Origin Of Cancer From Dna Methylation Markers, Sravani Gannavarapu Surya Naga

UNLV Theses, Dissertations, Professional Papers, and Capstones

Cancer is one of the leading causes of death globally and was responsible for approximately 9.6 million deaths in 2018. One of the main reason for deaths from cancer is late-stage presentation and inaccessible diagnosis and treatment. Cancer often spreads from the part of the body where it started (primary site) to a different part of the body (metastatic site). Identifying the primary site of cancer plays a key role as it directs the appropriate treatment. Cancer which spreads needs the same treatment as its origin. Having this knowledge can help doctors to decide the type of treatment.

All cancers …

Analysis Of Bitcoin Cryptocurrency And Its Mining Techniques, Suman Ghimire

UNLV Theses, Dissertations, Professional Papers, and Capstones

Bitcoin is a peer-to-peer digital, decentralized cryptocurrency created by an individual under pseudonym Satoshi Nakamoto. In fact, it is the first digital, decentralized currency. Several developers and organizations have explored the importance of digital cryptocurrency and the concept of the blockchain. Bitcoin is assumed to be one of the secure and comfortable payment methods that can be used in the upcoming days. The backbone of Bitcoin mining is the concept of the blockchain, which is assumed to beone of the ingenious invention of this century. The blockchain is the collection of blocks that are linked together in such a way …

Equation Of State Of H2o Ice Using Melt-Recrystallization, Zachary Michael Grande

UNLV Theses, Dissertations, Professional Papers, and Capstones

The recent surge in exoplanet discoveries due to advancements in astrophysical technology and analysis has brought the reliability of early equation of state measurements into question as they are the limiting factor when modeling composition of these planets. H2O content is among the most important for the search of habitable planets as well as in understanding planetary dynamics and atmosphere formation. Over the last three decades the equation of state of H2O has been investigated with various techniques but, has suffered from anisotropic strain and poor powder statistics resulting in a large discrepancy in equation of state fits. At pressures …

Assessing The Long-Term Effects Of A Cultural Immersion Experience On Nursing Practice, Karen H. De La Cruz

UNLV Theses, Dissertations, Professional Papers, and Capstones

Cultural immersion has been identified as a preferred method of teaching cultural competence in undergraduate nursing education. Multiple qualitative and quantitative studies have shown that baccalaureate nursing students enjoy international learning experiences and, based on self-efficacy evaluations, feel they have increased cultural competency following immersion experiences. However, there is little evidence to indicate concepts learned during undergraduate cultural competency course work is retained or integrated into nursing practice after leaving the milieu of academia.

To inform future cultural competency educational efforts, I conducted a qualitative phenomenological study to provide a baseline of evidence regarding the impact of a cultural immersion …

Health Disparities Among Sexual And Gender Minorities, Jennifer Keeley

UNLV Theses, Dissertations, Professional Papers, and Capstones

Decades of research has shown that sexual and gender minorities (SGMs) experience adverse health and mental health outcomes to a greater extent than their heterosexual peers. The need to better understand and eliminate health disparities in the SGM population was recognized by the National Institute on Minority Health and Health Disparities (NIMHD) at NIH. The Secretary of Health at the Department of Health and Human Services approved the designation of the SGM population as a health disparities population in 2016 and called for SGM studies to examine the health needs of the SGM population across SGM subgroups via large representative …

Prevalence Of Aggregatibacter Actinomycetemcomitans And Fusobacterium Nucleatum Among Clinical Orthodontic Saliva Samples, Jason Robert Klingler

UNLV Theses, Dissertations, Professional Papers, and Capstones

Changes to the oral microflora occur when there are shifts in the levels of the numerous bacterial species. Changes in bacterial load occur in health, disease, and dental treatments such as orthodontics and can be detected through saliva. Many studies dealing with saliva have centered around detecting bacteria known for correlation with chronic periodontitis and caries. Fewer have focused on bacterial species that contribute to microbial shifts not strictly correlated with disease. Measuring the degree of disease progression or future susceptibility is not always possible with traditional clinical parameters alone.

Aggregatibacter actinomycetemcomitans (AA) is a bacterial strain that serves as …

Petrogenesis Of The El Rechuelos Rhyolite, Jemez Mountains Volcanic Field, New Mexico, Usa, Kelsy Jo Konkright

UNLV Theses, Dissertations, Professional Papers, and Capstones

The El Rechuelos Rhyolite represents volcanic activity preceding the multiple caldera collapse events of the Jemez Mountains volcanic field (JMVF) in northern New Mexico. This study focuses on seven rhyolitic units clustered north of the Valles caldera. These units have been studied in order to interpret their relationships to one another and the eruptive history of the JMVF. Additionally, this study adds to the research on the relationships between effusive and explosive rhyolitic volcanism, and understanding how caldera-forming eruptions develop from silicic systems.

Limited previous research includes K/Ar dates and a few inconsistent 40Ar/39Ar dates, in addition to whole rock …

Examining The Role Of Business Intelligence And Analytics In Hospitality Revenue Management, Anna I. Kharitonova

UNLV Theses, Dissertations, Professional Papers, and Capstones

Most hospitality revenue management forecasting systems were built prior to the business intelligence and analytics movement. Only recently these systems have been enhanced to offer contemporary business intelligence and analytics functionalities. In addition, revenue management professionals are receiving support from standalone, supplementary business intelligence and analytics platforms. The purpose of this dissertation was to produce a holistic review of and establish the role of business intelligence and analytics within hospitality revenue management. Data was collected from twenty-three interviews; all participants were employed by hospitality organizations in revenue management specific positions. Grounded theory methodology was utilized. The results show that nearly …

Florence B. Price's Compositional Style To Song Settings Of Paul Laurence Dunbar's Dialect Poetry: A Performance Guide, Daniel Joseph Hunter Jr

UNLV Theses, Dissertations, Professional Papers, and Capstones

Florence B. Price (1887-1953) was an African-American composer from Little Rock, Arkansas. Ms. Price, who was a mixed-race female, was able to achieve unprecedented success during her lifetime. Price, a composer of instrumental, orchestral, and vocal music,

acknowledged the challenges of being a woman of color, trying to break into a world dominated by white men. Through her perseverance, she found success in 1933 when the Chicago Symphony Orchestra performed her Symphony in E Minor, making her the first African-American woman to have a work performed by a major orchestra in the United States. Marian Anderson, William Grant Still and …

Attitudes Toward Marijuana Legalization: Temporal And Thematic Trends, Daniel James Krystosek

UNLV Theses, Dissertations, Professional Papers, and Capstones

This dissertation examines historical changes in marijuana legalization attitudes between 1974 – 2018, using a qualitative study of pro-legalization social movements in marijuana culture and quantitative analyses of measures from the General Social Survey (GSS). The main research question asks what themes have been prevalent in pro-legalization social movements (e.g., libertarianism, anti-establishment and anti-drug-war, medical/cancer patient advocacy, market incentives), how these themes have changed over the past several decades, and whether they connect to trends in legalization attitudes in the (GSS).

The first part of this study is qualitative, employing thematic content analysis of the most prominent national pro-marijuana publication. …

Reconsolidation: Unique Cognitive Process Or State Dependent Learning?, Chris Kiley

UNLV Theses, Dissertations, Professional Papers, and Capstones

Accessing a previously consolidated memory trace brings it back into a labile state where it must then undergo a re-stabilization process known as reconsolidation. During this process memories are susceptible to interference and may be updated with new information. Reconsolidation has been demonstrated in animals as well as in the procedural and episodic human memory systems. However, it is still unclear when the effect will occur. Some studies suggest that reconsolidation is only necessary when new information is presented in the same spatial context or when prediction error occurs. More recent work has provided evidence that reconsolidation could be due …

Specific Heat, Magnetic Susceptibility, And The Effect Of Pressure On Structural Properties And Valence Of Eumn2si2, Euco2si2, And Eu5in2sb6, Brian Edward Light

UNLV Theses, Dissertations, Professional Papers, and Capstones

Many intermetallic solids containing elements from the rare earth series show interesting and unusual behavior associated with 4f electrons. This behavior includes unusual magnetic order, strongly correlated electrons, intermediate valence, heavy fermions, the Kondo effect, superconductivity, and non-Fermi liquid (NFL) to name a few. When long range magnetic order is suppressed to T = 0 K by the application of an external tuning parameter such as pressure, magnetic field, or chemical doping, a quantum critical point (QCP) appears in which strong quantum fluctuations give rise to many of the mentioned unusual properties.

Most of the past studies on unusual 4f …

Potential Fossil Yield Classification (Pfyc) Survey Of Nevada Surficial Geology, And A Multi-Sensor, Remote Sensing, Change-Detection Study Of Land-Use/Land-Cover Urbanization Impacting The Las Vegas Formation Located In Northwestern Las Vegas Valley, John Jayson Medema

UNLV Theses, Dissertations, Professional Papers, and Capstones

This thesis is a combination of two separate but related projects. The first project is a Potential Fossil Yield Classification (PYFC) survey. The PFYC is a Bureau of Land Management funded survey designed to synthesize paleontologic information into a geographic information system (GIS) as a distributable geodatabase. The database is designed to represent surficial geologic deposits contained in a polygon shapefile. Throughout the State of Nevada each polygon represents a mapped geologic unit at a scale of at least 1:250 k. Each mapped geologic unit is then assigned a “potential fossil yield classification”, a numerical ranking value of 1-5 based …