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A Controlled Examination Of Motivational Strategies: Reviewing Positive Consequences For Goal Achievement, Negative Consequences For Undesired Behavior, And A Relaxation Exercise, Yulia Gavrilova

UNLV Theses, Dissertations, Professional Papers, and Capstones

Introduction: Motivation is an integral part of human life and one of the most fundamental aspects of behavior change. Of interest to the present study are two motivational approaches, Negative Consequences Review (NCR) and Positive Consequences Review (PCR). NCR is an intervention component originally designed as part of Family Behavior Therapy (FBT) to motivate individuals with their goals through a discussion of negative consequences associated with undesired behaviors. PCR was developed as an auxiliary component of FBT to inspire individuals’ motivation to achieve their goals through a discussion about positive consequences of reaching goals. Purpose: The purpose of this study …

Processj: The Jvmcsp Code Generator, Oswaldo Benjamin Cisneros Merino

UNLV Theses, Dissertations, Professional Papers, and Capstones

We as a society have achieved greatness because we work together. There is power in numbers. However, when it comes to programming we have not been able to achieve the same level of symbiosis. This is because concurrent programming has been stigmatized as an advance and ab- stract subject allegedly harder than sequential programming. Additionally, traditional approaches to solving concurrent problems using sequential programming become unnecessarily difficult be- cause most of what newcomers are taught when it comes to concurrent programming (e.g., message passing and threads), while being technically correct, is completely irrelevant to the problems at hand. Rather than …

Exploring Preservice Teacher Agency Influencing Power Relationships With Teacher Educators: A Multiple Case Study, Steve Hayden

UNLV Theses, Dissertations, Professional Papers, and Capstones

Teacher agency is the temporal and ecological understanding of a teacher’s capacity to make choices, take principled action, and enact positive change. A teacher’s agency relies on context and is measured on a continuum, with agency contingent on the reciprocal relationship between the individual and the structural environment. Structure influences teachers’ professional practice, but teachers must reciprocally influence power relationships within the structural school context to be successful and active contributors to the education process. Teacher agency is an essential dimension of effective professional practice because of its ability to highlight the required skillset of successful teachers. Because preservice teachers …

How To Break Your Own Heart, Ryan Molloy

UNLV Theses, Dissertations, Professional Papers, and Capstones

The following collection represents three years of creative work in the Masters of Fine ArtsFiction program at the University of Nevada Las Vegas. These stories attempt to be equal parts humorous, tragic, and mundane.

The Effects Of Ventilation On Trihalomethanes Removal By Spray Aeration, Alicia Qiu Cheung

UNLV Theses, Dissertations, Professional Papers, and Capstones

Chlorination has been a vital and common step employed as a primary and/or secondary disinfectant to avoid outbreaks of waterborne diseases in drinking water supplies. Besides the desired effect of inactivating pathogens, chlorine also reacts with natural organic matter and precursors in raw water to form various carcinogenic disinfection by-products (DBPs), such as trihalomethanes (THMs), four of which are (represented as total trihalomethanes or TTHM) chloroform (CHCl3), dichlorobromomethane (CHCl2Br), chlorodibromomethane (CHClBr2), and bromoform (CHBr3). Spray aeration is an effective, economical, and suitable post-treatment method commonly employed in distribution systems (e.g., storage tanks) to remove these volatile organic compounds from the …

Investigation Of Efficiency Loss Of Distributed Solar Power Due To Soiling And Efficiency Recovery By Rainfall, Amanda Mayumi Tanaka

UNLV Theses, Dissertations, Professional Papers, and Capstones

As the concern with global warming increases causing the need for CO2 reduction, renewable energy is of great interest as it has lower carbon footprint when compared to conventional sources (natural gas, coal, oil and nuclear). Solar energy has been drawing worldwide attention since it can transform sunlight directly into electricity with the use of photovoltaic (PV) cells. However, this technology has some drawbacks that need to be addressed including dust deposition on solar panels, also known as soiling. Soiling can decrease PV panel’s efficiency thereby resulting in less energy production. The soiling rates are very site specific and depend …

In Pursuit Of Social Justice At The Postmodern Turn: Intersectional Activism Through The Lens Of The Ecosexual Movement, Jennifer Jean Reed

UNLV Theses, Dissertations, Professional Papers, and Capstones

In this study, I examine the development of the ecosexual movement, a social movement that begins at the intersection of environmental and sexual struggles, from its inception in the late 1990s/early 2000s. Previous research suggests intersectionality in social movements often ends up being divisive because it emphasizes difference. Using a mixed qualitative methods design including ethnographic field work, interviews, and content analysis of related web and print materials, I analyze how the ecosexual movement negotiates intersectionality. I found the ecosexual movement links processual notions of environmental justice and sexual justice through a dominant collective action frame of queer, erotic, “irreverent …

Multimethod Investigation Of Pristine Inner Experience, Leiszle Rae Lapping-Carr

UNLV Theses, Dissertations, Professional Papers, and Capstones

Introspection can be defined as any effort to observe and report on internal experiences. As such, introspection continues to be a commonly used research method, including self-report questionnaires, experience sampling, and qualitative interviews. However, in these modern applications of introspection, the challenges of such endeavors are often not readily acknowledged or addressed. This study compared three introspective methods using a pre-test, post-test design: descriptive experience sampling (DES), the experience sampling method (ESM), and daily questionnaires (DR). Those who participated in DES, a beeper-based method designed to produce high fidelity understandings of random moments of inner experience, had lower average frequencies …

Multi-Polygenic Risk Score Prediction Model For Bipolar Disorder, Travis Mize

UNLV Theses, Dissertations, Professional Papers, and Capstones

Bipolar disorder (BP), a severe mental disorder characterized by recurring manic and depressive episodes, has been shown to have a strong genetic underpinning. Current theory suggests that it is the summation of risk alleles, spread across the entirety of the genome, which contributes to the development of BP, as well as other polygenic traits. The comorbid nature of these polygenic traits are often problematic for diagnosticians as the symptomology of the disorders may vary substantially between individuals and can create diagnostic confusion. To alleviate issues such as these, a more objective measure, to be used alongside current diagnostic procedures, is …

The Effect Of The Minimum Server Wage On Restaurant Guest Tipping Behavior And Perceptions, Jason Tang

UNLV Theses, Dissertations, Professional Papers, and Capstones

Restaurant server income is predominantly composed of tips received from guests and the minimum server wage received from restaurants. Grounded in equity theory, this dissertation investigated the effect of the minimum server wage, in combination with established antecedents of voluntary tipping, on tipping rate and examined guest perceptions of fairness of the minimum server wage and three prevalent tipping policies (voluntary tipping, automatic service charge, and service inclusive pricing). Two experiments were conducted, a 2 (minimum server wage) x 2 (service quality) experimental design, and a 2 (minimum server wage) x 3 (tipping policy) experimental design. The results revealed that …

The Post-Soviet Voter: Evidence From The Caucasus, Rafael Oganesyan

UNLV Theses, Dissertations, Professional Papers, and Capstones

In western liberal democracies, voting behavior is often times characterized by sociological and psychological indicators. Party identification and issues such as the economy dominant the vote function of the electorate. In the post-Soviet space, party volatility and the competitive authoritarian nature of regimes may result in voters failing to act as agents of accountability. In this dissertation, I argue that the socio-psychological theory of voting behavior applies to post-Soviet electorate in the Caucasus. I demonstrate that Armenian and Georgian voters rely on partisanship as well as perceptions of the economy when casting electoral judgment on the incumbent party. This research …

Effects Of Creativity Instruction In Science On Creative Thinking And Science Achievement In Chinese Students, Yun Peng

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study investigated the effectiveness of the 3eT instructional model designed by Hong (Hong, 2012a; Hong, O'Neil, Drobick, & Beisel, 2013) that focused on increasing students' creative-thinking ability. 120 seventh-graders in China participated in the study. Participants were randomly assigned to the experimental or the control group. They learned a segment of a science curriculum unit with instructional materials developed based on the 3eT model which aimed to encourage students to use creative thinking techniques.

Patterns of students' perceptions of a creative person were compared between the experimental group and the control group. Content analyses of students' narrative responses elicited …

The Effects Of Problems Attributed To Culture On The Mental Health Of Athletes, Corey Rae Kuhn

UNLV Theses, Dissertations, Professional Papers, and Capstones

Demographic changes in the United States during the past century and recognition of the importance of diversity have increased interest in research involving ethno-cultural factors that impact mental health. For example, important psychological constructs, such as self-concept and ethnic identity, have been indicated to develop within cultural context and impact psychological wellbeing (Brittian et al., 2013). The field of psychology, as a whole, is evaluating the merits of etic and emic approaches to research and clinical practice while exploring the importance and application of multicultural counseling/therapy (MCT; Sue & Sue, 2013). In contrast, within sport psychology, the influence of ethnic …

Impact Of Clinician Experience And Positive Language On Subject Expectation Of Cervical Spine Manipulation Effects, Joshua Wood, Jonah Mawae, Stephen Elmer

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background and Purpose: Acute neck pain is a worldwide epidemic that physical therapists treat with cervical spine manipulation (CSM). While the mechanical and neurological effects of CSM are important, it is possible that the patient’s perception of the therapist’s skill level may also play a role in patient outcomes. Along with the patient’s perception of the practitioner, evidence suggests that patient expectation for intervention efficacy may also alter patient outcomes. The implication is that special consideration must be taken when practitioners choose their words when describing both themselves and their interventions. The purpose of this study is to examine if …

Modulation Of Corticospinal Excitability Using Cathodal Transcranial Direct Current Stimulation To Improve Walking In Individuals With Chronic Post Stroke Hemiparesis, Neil Drobitch, Kylie Henry, Sage Lyons, James Schomig

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background and Purpose: Individuals who have experienced a pyramidal cerebrovascular accident (pCVA) often exhibit impairments to volitional control of corresponding motor tasks. Promising effects in motor response, post-application of transcranial direct current stimulation (tDCS), have been reported in studies on individuals with the ability to achieve independent gait for 20 minutes. These studies mainly examined the effects of combined tDCS with locomotor training on lower extremity function among higher functioning individuals post-stroke. The purpose of this study was to determine the effect of tDCS among individuals post-stroke who may not have independent ambulatory capabilities, focusing on motor response and less …

The Moderation Effect Of Bdnf Genotype And Self-Reported Lifetime Physical Activity Habits On Postural Instability In Parkinson’S Disease, Samantha Johnson, Tyler Ormsby

UNLV Theses, Dissertations, Professional Papers, and Capstones

Brain-derived neurotrophic factor (BDNF) levels play an important role in neuroplasticity in normal and neurologically compromised individuals. Studies suggest that BDNF levels increase in response to physical activity and are also affected by genotype. In individuals with Parkinson’s Disease (PD), it is not known if physical activity habits and BDNF genotype modulate this neuroprotective response. The purpose of this study was to determine if BDNF genotype interacts with lifetime self-reported physical activity levels to affect age of disease onset and severity of PD symptoms, specifically gait, balance, and motor dysfunction

Lumbopelvic Muscle Performance And Morphology Differences: Implications For Low Back Pain In Individuals With Unilateral Above-The-Knee Amputation, Melissa Damele, Rachel Gross, Ronauldo Robina

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background and Purpose: The number of people living with an amputation in the United States is rising at a rate of almost 200,000 cases a year [1]. The incidence of low back pain (LBP) in individuals with lower limb amputation (LLA) has been shown to be much greater than in the general population at 52%- 72% [2-4]. High amputation level, disuse, and abnormal movement patterns associated with prosthetic gait have been theorized to lead to decreased lower back muscle performance, contributing to the high prevalence of LBP in individuals with LLA [5-7]. However, lumbar muscle morphology and performance have not …

Rural Or Underserved Practice Interest Among Doctor Of Physical Therapy Students. Do Clinical Education Experiences Change Opinions?, Brandon Godin, Trenton Poulson, Mac Neil Moresca, Tyler Satoshige

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background and Purpose: People living in rural and underserved areas are poorly served by our country's healthcare system. The Federal Office of Rural Health Policy reports that approximately 18% of people in the United States live in rural areas. Within the physician and nursing literature the largest reported predictor of rural practice is having a rural background. Mandated rural medical rotations during training have been shown to positively alter interest in rural practice and employment. While nursing and medical students have been thus studied, limited evidence exists for physical therapists. The objective of this study was to determine how rural …

Intra- And Inter-Rater Reliability Of A Ballet-Based Dance Technique Screening Instrument, Jessie Lesar, Zachary Shaver, Ivetta Lassey

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background: To execute the aesthetic demands of dance while utilizing proper biomechanical body position, a dancer needs the ability to maintain lumbopelvic stability, external rotation of the femur, and alignment of the knee, foot, and ankle. The ability to identify technique deficits can guide preventative programs that may reduce injury risk and frequency. Purpose: The purpose of this study was to investigate intra- and inter-rater reliability of the ballet-based Dance Technique Screening Instrument by physical therapists (PTs) and student PTs (SPTs) with prior dance medicine or dance experience. Subjects: Twenty-eight adult subjects served as raters which included licensed PTs and …

Neurodynamics Under Different Walking Speeds In Individuals With Chronic Post-Stroke Hemiparesis, Corey Ackley, Kiley Aki, Joshua Arias, Jassie Trinh

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background and Purpose: Stroke is the leading cause of long-term disability in adults worldwide. The ability to return to walking is often a main goal of rehabilitation in individuals with chronic post-stroke hemiparesis. To increase walking speed, non-neurologically impaired individuals produce greater ankle propulsion force at push-off with greater ankle dorsiflexion angles in swing phase with no change in ankle muscle co-contraction index in the swing phase. It remains unclear if individuals post-stroke would adopt similar neuromuscular strategies. Therefore, our aim was to examine the effect of altered walking speeds on propulsion force at push-off, ankle dorsiflexion angle during swing, …

The Effect Of Physical Therapy On Patient Self-Reported Outcomes And Perceptions Of Mobility After Lower Extremity Amputations, Gregory Amaya, Rosman Gante, Zachary Meinzer, Abbas Sadrossadat

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background and Purpose: The number of people with limb loss is rapidly growing, partly due to an aging society and the prevalence of diabetes. Physical Therapy (PT) has been shown to improve perceived functional outcomes and quality of life in older adults and individuals with diabetes, but it is unclear why certain patients do not receive PT after amputation and whether the beneficial outcomes shown in other populations translate to individuals with limb loss. The purpose of this study was to determine whether receiving PT among patients with limb loss correlates with an improved quality of life, better mobility, and …

Patellar Tendon Morphology In Trans-Tibial Amputees Utilizing A Prosthesis With A Patellar-Tendon-Bearing Feature, Jessica Kellogg, Kelly Teter, Michelle Evers

UNLV Theses, Dissertations, Professional Papers, and Capstones

Purpose/Hypothesis: A patellar-tendon-bearing (PTB) bar is a common prosthetic design feature used in individuals with trans-tibial amputations. As the patellar tendon in the knee of residual limb is subjected to the perpendicular compressive force not commonly seen in normal tendon loading, it is possible for tendon remodeling and degeneration to occur over time; however, there is limited data to support this idea. The primary purpose of this study was to use ultrasound imaging to compare the morphological differences between tendons of the residual and intact limb in unilateral trans-tibial amputees who utilize a prosthesis with a PTB feature. We hypothesized …

Physiotherapy Is Associated With Improvements In Gait And Balance In Individuals With Cognitive Impairment: A Retrospective Analysis, Steven Jackson, Elbert Chen, Jason Phan

UNLV Theses, Dissertations, Professional Papers, and Capstones

BACKGROUND: Evidence suggests that individuals with cognitive impairment (CI) exhibit significant motor impairments; however, these motor impairments receive little treatment attention compared to more prominent CI. Moreover, there is a lack of evidence about physiotherapy (PT) in individuals with CI. OBJECTIVE: The purpose of this study was to determine if PT was effective at improving gait and balance in individuals with Alzheimer disease (AD), vascular dementia (VaD), dementia with Lewy bodies (DLB), and mild cognitive impairment (MCI). METHODS: Retrospective data of 173 individuals with CI conditions and an initial evaluation for PT were extracted from electronic records from January 2016 …

Health Care-Associated Infection Prevention Outcomes: Evaluating The Link Between Infection Prevention Practices In Healthcare Facilities And Their Health Care-Associated Infection Rates, Chidinma Veronica Njoku

UNLV Theses, Dissertations, Professional Papers, and Capstones

Healthcare-associated infections (HAI) are a pressing problem affecting vulnerable individuals who come to the hospital to receive care for one condition only to find that they have contracted another during their stay. Studies point to the importance of training and educating staff in order to implement and comply with recommended infection control and prevention control and prevention practices as lack of training and knowledge about infection control and prevention has been perceived to bring about a limited ability for direct care staff to adhere to recommended processes and activities. Although there are prior studies on the effects of assessments, infection …

Identifying Risk Factors For Youth Hospitalization In Crisis Settings: A Classification And Regression Tree Analysis, Yen-Ling Chen

UNLV Theses, Dissertations, Professional Papers, and Capstones

Traditionally, treatment option for psychiatric crises was limited to psychiatric hospitalization. However, psychiatric hospitals are expensive and little evidence supports their utility. Youth returning from psychiatric hospitalizations often have difficulties readjusting to everyday life which can increase risk for negative outcomes. Alternative treatment options such as mobile crisis services might be useful for stabilizing youth in the community and garnering better long-term outcomes. For alternative treatment options to work, clinicians must be able to efficiently and accurately distinguish youth in need of psychiatric hospitalization and youth who could be served via an alternative service. Therefore, the purpose of the present …

Public Exposure To Outdoor Bioaerosols In Particulate Matter In Las Vegas: Daily And Seasonal Variations, Karey Renee Fortier

UNLV Theses, Dissertations, Professional Papers, and Capstones

Bioaerosols are airborne particles of biological origin including viruses, bacteria, pollen, fungi, and fragments of their metabolic products. Bioaerosol exposure may represent a health risk, in particular for risk groups such as immunosuppressed persons, and those suffering from allergies or respiratory diseases. Bioaerosols of sizes

This study seeks to assess outdoor bioaerosol number concentrations and size distributions in Las Vegas, NV, as the first step in understanding their health risks. PM2.5 and PM10 were collected on black polycarbonate filters for 24-hour duration using MiniVol air samplers on UNLV campus in the spring and fall of 2017. Bioaerosols in these samples …

Super Rapid Crystal Growth And Quench Of Monoclinic Bi-Ii* During Dynamic Compression, Zachary Allen Fussell

UNLV Theses, Dissertations, Professional Papers, and Capstones

We show that monoclinic Bi-II* forms during a dynamic compression regime with crystal growth rates from melt of ≈ 70 m/s. This extreme quench rate implies crystallization by non-diffusive processes and indicates that the liquid had a high degree of pre-ordering. Using ambient condition single crystal structure analysis we show for the first time that the monoclinic distorted phase of Bi (Bi-II) exists at ambient pressure, albeit bound to formation under dynamic compression. We review the pressure, temperature, and time conditions for formation and growth of this structure.

High-Pressure High-Temperature Exploration Of Phase Boundaries Using Raman Spectroscopy, Jasmine Kashmir Hinton

UNLV Theses, Dissertations, Professional Papers, and Capstones

Metastability of states can provide interesting properties that may not be readily accessible in a material’s ground state. Many materials show high levels of polymorphism, indicating a rich energy landscape and a potential for metastable states. Melt crystallization techniques provide a potential route to these states. We use a resistively heated diamond anvil cell (DAC) with fine control of a system’s pressure and temperature to explore these systems. Raman spectroscopy is used to track subtle structural changes across phase boundaries. Organic systems, such as glycine and aspirin, were our initial interest due to their high polymorphism and reported low melting …

Illuminating Unsung Americans Sung As A Musical Staple Within American Culture, Richard Leon Hodges

UNLV Theses, Dissertations, Professional Papers, and Capstones

The book Unsung Americans Sung was first published in 1944 by the Handy Brothers Publishing Company. With over 30 contributors and edited by William C. Handy, this book explores the great abolitionists of the eighteenth century and the climate of Negro culture during that moment in time. The book includes poetry, illustrations, children’s songs, choral works, scenes from major works, and art songs. Handy was not only offering his opinion of the Negro of the time, but he was creating a book that would add these freedom fighters and generational torchbearers into the archives of every American. Sadly, this glimpse …

Literal Dope, Frank Johnson

UNLV Theses, Dissertations, Professional Papers, and Capstones

Literal Dope draws from the rich literary traditions of hip-hop and the broader umbrella of Black American art traditions. It seems to me that perhaps the best way to honor the language which raised me, taught me, and literally saved my life is to explore it, praise it, weaponize it when necessary, and deploy it as a tool for Black liberation. The work’s theory is deeply informed by bell hooks, Audre Lorde, Lucille Clifton, and a number of Black feminist artists. The world needs Black folks—especially Black men—who know love; who know how to love each other and know they …