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Screening For The Novel Cariogenic Pathogen Scardovia Wiggsiae Among Orthodontic Patients, Adam Whiteley

UNLV Theses, Dissertations, Professional Papers, and Capstones

Screening for the Novel Cariogenic Pathogen Scardovia wiggsiae among Orthodontic Patients

by

Adam Whiteley

Dr. Karl Kingsley, Examination Committee Chair Professor of Biomedical Sciences University of Nevada, Las Vegas School of Dental Medicine

The recent discovery of a novel cariogenic pathogen Scardovia wiggsiae has led many scientists and oral health researchers to re-evaluate and re-examine existing saliva repositories to determine the prevalence among patient populations. Recent efforts at this institution have used existing saliva samples to determine the prevalence among both adults and pediatric patients. These studies have revealed this organism may be found in approximately one-quarter of all samples …

Cosmic Valentine, Gabrielle Faith Williams

UNLV Theses, Dissertations, Professional Papers, and Capstones

Narrativization can empower us to reach beyond our loss and act as a trauma healer. This collection uses myth and spirituality to interrogate that suffering. Concerned with both physical and mystic bodies, the characters in these poems are reborn into new paradigms, attempting to diffuse loss (of dignity, hope, identity), and transform that injury into empowerment.

These poems explore those painful experiences through dreams and nonlinear magical visions, drawing from Surrealists painters like Salvador Dali and Rene Magritte, whose dreamlike style informs the images in this collection.

Mysticism is essential to this work. The poems are meditations on death, love, …

A Middle Pueblo Ii Production Zone For Shivwits Ware Ceramics: Implications For Understanding Settlement Patterns And Socio-Environmental Responses On The Shivwits Plateau, William Morrow Willis

UNLV Theses, Dissertations, Professional Papers, and Capstones

The distribution of ceramics from upland regions in Northern Arizona into Southern Nevada is one of the many curiosities concerning the Virgin Branch Puebloan culture. From the Shivwits Plateau, it is more than 100 kilometers to the Moapa Valley, yet Shivwits Wares make up a sizeable proportion of sherds found at many lowland sites. These networks appear to reach their height in the Middle Pueblo II period and then collapse sometime around AD 1150. The reason for this is not yet fully understood; however, research performed on the southern end of the Shivwits Plateau concerning landscape usage and settlement placement …

Investigating The Use Of An Emotional Intelligence Intervention With Young Elementary Students Receiving Services In A Self-Contained Setting For Students With Emotional Disturbance, Kristin Lian Withey

UNLV Theses, Dissertations, Professional Papers, and Capstones

While there is a longstanding call for all students to succeed, students receiving special education services under the label of emotional disturbance (ED) are at an increased risk for minimal school and life outcomes, ranging from poor classroom grades and increased expulsion to high rates of incarceration and drug use. Although there are extant interventions, these often rely on extrinsic motivation or are begun after research suggests behaviors have become habit. Because of this, there is a call for earlier intervention that teaches students requisite skills. One such developmentally appropriate practice that has yet to be explored with students receiving …

Design & Delivery Of Automated Winston-Lutz Test For Isocentric & Off-Axis Delivery Stability Utilizing Truebeam Developer Mode & Electronic Portal Imaging Device, Mahmoud Mohammad Yaqoub

UNLV Theses, Dissertations, Professional Papers, and Capstones

The uncertainties in treatment delivery cannot be ignored in radiation therapy. Thus, the quality assurance QA tests are very important task of the medical physicist in clinical practice. Assuring the coincidence between the mechanical isocenter of the Linear Accelerator (LINAC) and its radiation beams isocenter is one of the most important qualities need to be tested, and the Winston Lust (WL) test is the

most popular technique to perform this task, especially for the treatment modalities which need high precision in beam delivery such as the stereotactic radiosurgery/stereotactic body radiotherapy (SRS/SBRT). The linear accelerator-based SRS/SBRT is a well-established method in …

Design On High Performance Nanoscale Cmos Circuits With Low Temperature Sensitivity, Ming Zhu

UNLV Theses, Dissertations, Professional Papers, and Capstones

With the rapid development of integrated circuit (IC) design and manufacturing technology, the transistor size now can be shrunk into only couple of nanometers whereas billions of transistors can be squeezed into a square millimeter, providing unprecedented computation power. However, accompanied with continuous device miniaturization and increased integration density is the explosive growth of on-chip power dissipation and a wide range of temperature fluctuation, which can heavily and negatively affect the delay performance of the circuit, or in the worst case, the circuit may malfunction and the system can be unreliable. Therefore, improved performance resilience against temperature variations has become …

Patellofemoral Joint Stress During Uphill And Downhill Running In Healthy, Theresa French, Brooks Klein, Young Lee

UNLV Theses, Dissertations, Professional Papers, and Capstones

Subjects: Twenty recreational runners participated (mean age of 24.9 years). Methods: Kinematics and kinetics of the trunk and lower extremity were obtained at 3 conditions: level, 6° uphill, and 6° downhill, at a speed of 2.3 m/s. PFJ stress was determined using a biomechanical model that incorporates knee flexion angle and knee extensor moment as subject-specific input variables. The model output consisted of PFJ reaction force, PFJ stress, and PFJ contact area. One-way ANOVAs with repeated measures and post-hoc t-tests with a Bonferroni adjustment were used to compare outcome variables across the 3 conditions. Results: Peak PFJ stress during downhill …

Reliability And Validity Of Using A Mobile Application To Asses Knee Valgus In Healthy And Post-Anterior Cruciate Ligament Reconstruction Participants, Brenda Benson Deaver, Tyrel Nelson

UNLV Theses, Dissertations, Professional Papers, and Capstones

Objective: To examine the reliability and validity of using a movement analysis application (MAA) to measure knee valgus angle during three functional activities used to assess return-to-sport after ACL reconstruction (ACLR). Design: Reliability and validity study Setting: University laboratory Participants: Twelve ACLR participants with a non-contact mechanism of injury and 20 healthy individuals. Independent Variables: Each subject performed single-leg drop landing, single-leg hop, and 90º cut with simultaneous 3-dimensional (3D) motion capture and video recording in the frontal plane on an iPad. Main Outcome Measures: Peak knee valgus angle during the landing phase of each task was measured using a …

Immediate Effects Of Cervical Spine Thrust Joint Manipulation On Gait Parameters In Individuals With Neck Pain, Marc Anthony D. Albano, Emily Blok, Beau Gronert, Ryan Masuda

UNLV Theses, Dissertations, Professional Papers, and Capstones

Purpose/Hypotheses: 1. To investigate for any change in gait parameters in individuals with neck pain while walking with different functional neck conditions immediately following cervical thrust joint manipulation (TJM) versus a sham intervention. 2. To investigate any association between Global Rating of Change (GROC) scores and gait parameters immediately following cervical thrust joint manipulation versus a sham intervention. The hypotheses were that, a) cervical TJM would have an immediate effect on gait parameters during walking with the neck in at least one of three conditions (neutral, flexion/extension and rotation) among individuals with neck pain; and b) higher scores on the …

Investigation Of The Cardiovascular Endurance Of Dance Majors, Arnold Huang, Ali Ross, Kelsey Taelour, Geneva Winters

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background: College dancers have demonstrated low levels of cardiovascular endurance compared to other athletes, which could be one of the factors that leads to more fatigue and injuries during performance. The effects of an education session on cardiovascular endurance and on college dancers’ attitudes towards cardiovascular exercise outside of dance class have not been previously studied. Purpose: The purpose of this study was to use the accelerated three-minute step test to compare lower level and upper level college dancers’ cardiovascular endurance before and 2 months after an education session emphasizing fitness and exercise. Additionally, assessed were the dancers’ attitudes towards …

Successful Patient Participation In Acute Hospital Physical Therapy, Jesse Kim, Joseph Fertitta, Patrick Williams

UNLV Theses, Dissertations, Professional Papers, and Capstones

Purpose/Hypothesis: Research has demonstrated that physical therapy plays a crucial role in patient recovery in the acute hospital setting. Despite known benefits, scheduled sessions do not always occur and are called nontreatment (NT) events. Reported NT ranges from 15% to 26% of scheduled sessions. Previous studies have found an association between NT and patient diagnosis as well as between NT and day of the week on which treatment was scheduled. Identifying additional factors that affect NT is important if therapists and administrators are to make improvements. The purpose of this study is to determine if an association exists between physical …

The Influence Of Socioeconomic Factors On Fear Of Falling And Mobility Outcomes After Lower Limb Loss: A Preliminary Study, Tyler Chin, Heather Fox, Juan Gutierrez Jr.

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background and Purpose: Current research has revealed that as much as 52.4% of individuals with lower limb loss report falling at least once in the past year. Previous research has also indicated that rehabilitation, including physical therapy (PT), generally improves patient outcomes after definitive amputation. Socioeconomic status has been shown to be an important factor in accessing healthcare but has yet to be investigated in this population. The purpose of this study was to investigate the effects of socioeconomic status and access to PT, and how limb loss affects mobility and fear of falling perception. We hypothesized: [1] individuals with …

The Effect Of Standardized Photodocumentation On Coding Of Pressure Injuries, Brandon Bales, Alex Preciado, Angela Sandoval

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background and Purpose: Pressure injuries (PI) are prevalent and costly for hospitals. Hospitals implement different practices to accurately document PIs ranging from pen and paper to photodocumentation in electronic medical records (EMRs). In some instances, PIs that have been documented are not coded for billing and reporting. The purpose of this study is to determine if different documentation practices affect the number of coded PIs. Methods: Counts of coded PIs were collected from 2011- 2017 from two hospitals: a 500-bed acute care hospital (ACH) and a 42-bed acute rehabilitation hospital (ARH). A series of PI documentation practices were implemented over …

Individuals With Recurrent Low Back Pain Exhibit Significant Changes Of Paraspinal Muscle Performance After Lumbar Multifidus Intramuscular Fine Wire Electrode Insertion, Anthony Duong, Vincent Dinglasan, Russell Totten

UNLV Theses, Dissertations, Professional Papers, and Capstones

STUDY DESIGN: Case control study. BACKGROUND: Recurrent low back pain (RLBP) is associated with paraspinal muscle dysfunction. Intramuscular electromyography (EMG) is a common tool for studying activation of the deep lumbar paraspinal muscles such as multifidi muscles, but it is currently currently unclear how muscle performance and activation are affected by the pain and micro-injury associated with intramuscular fine-wire electrode (IFWE) insertion and how it interacts with the presence of RLBP. OBJECTIVES: The purpose of this study was to examine how IFWE insertion into the lumbar multifidus affects paraspinal muscle strength and endurance in subjects with and without RLBP. METHODS: …

Neuromuscular Adaptations Following Slope Walking In Individuals Post-Stroke, Eric Akoopie, Brooke Conway Kleven, Trisha Koch

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background: The excitability of the H-reflex pathway in the non-impaired nervous system can be augmented by altering the different parameters of a walking task, specifically slope. We sought to examine the adaptations in soleus H-reflex excitability and foot force control following an acute bout of upslope or downslope treadmill walking in people post-stroke compared to those who are non- impaired. Methods: We recruited 12 individuals with chronic post-stroke hemiparesis and 9 age-similar non- neurologically impaired individuals. Each subject was tested over 2 sessions separated by at least 7 days. For each session, subjects walked at a self-selected walking speed on …

The Moderation Effect Of Bdnf Genotype And Self-Reported Habitual Physical Activity Levels On Age Of Onset, Disease Progression, And Postural Instability In Parkinson's, Kyle Johnson, Danielle Salgo, Jessica Zorn

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background and Purpose: Brain-derived neurotrophic factor (BDNF) levels have been reported to play an important role in driving neuroprotection in people with neurologic disorders, and levels of BDNF are known to increase in response to physical activity. Moreover, the level of BDNF produced is also affected by BDNF genotype. It is not known, however, whether one’s BDNF genotype interacts with physical activity throughout life to affect a neuroprotective response in people with Parkinson’s disease (PD). Therefore, the purpose of this study was to determine if BDNF genotype interacts with lifetime self-reported physical activity levels to affect disease severity and progression …

Acculturative Stress, English Proficiency, Social Support, And Coping Strategies Among Chinese International Students, Jiabao Zhang

UNLV Theses, Dissertations, Professional Papers, and Capstones

Drawing on data from 137 Chinese students who enrolled in a large research university in the Southwest of the United States, this quantitative study examined the relationships between Chinese students’ acculturative stress, English proficiency, social support, and coping strategies. This study utilized a survey method and employed four previously established questionnaires; moreover, the use of these questionnaires was to examine students’ acculturative stress, as it is the dependent variable of this study.

In data analysis, t-test and one-way analysis of variance (ANOVA) were used to compare means and standard deviations of Chinese students’ acculturative stress through students’ demographics and characteristics. …

The Future Of Construction As It Applies To The Colonization Of The Moon And Mars, Julian Prestia

UNLV Theses, Dissertations, Professional Papers, and Capstones

The goals of this research are:

1. To compile a comprehensive list of all the viable known solutions (and early stage potential solutions) to the issues related to constructing permanent, sustainable, and safe structures for human colonies on our moon and Mars,

2. Determine the most effective potential solutions, and

3. Further develop these ideas as to assist in further space endeavors.

This proposed paper will assist space experts in determining the best next steps in the development of deep-space travel and colonization technologies. Preliminary research has identified several key problems associated with establishing space colonies. They are as follows: …

A Potential Solution To A Poopy Problem: Bile Salt Analogs As Prophylactics Against Clostridium Difficile Infection, Jacqueline Renee Phan

UNLV Theses, Dissertations, Professional Papers, and Capstones

Clostridium difficile infection (CDI) is a major cause of antibiotic-associated diarrhea. In 2011, over 500,000 patients were diagnosed with CDI in the United States and over 29,000 people died of CDI-related complications. With an average of $35,000 to treat a single case of inpatient CDI, cost burden to the healthcare system can reach up to $3.2 billion annually. As both hospital- and community-acquired CDI incidences rise due to the emergence of hypervirulent strains and CDI reoccurrences of up to 25%, standard treatments are rendered less effective and new methods of prevention are critical.

CDI is caused by bacteria called Clostridium …

Exterior Giant Planet Effects On Terrestrial Architecture, Anna Corinne Childs

UNLV Theses, Dissertations, Professional Papers, and Capstones

Terrestrial planet formation is a chaotic and violent process which is not fully understood. Prior to Kepler, Solar System observations were the basis for planet formation models. How- ever, Kepler observations have shown that exoplanet systems are very different from our solar system, thus requiring a more complete planet formation model. With advancements in com- putational ability, N-body integrators, and collision models, we can explore planet formation by experimenting with simulations in different parameter space. Our Solar System has shown us that exterior giant planets can play a vital role in the shaping of the final terrestrial planet system. Our …

The Impact Of Economic Recession On The Health Of Adult Nevadans, Ariana Goertz

UNLV Theses, Dissertations, Professional Papers, and Capstones

Recessions are generally considered to cause negative consequences, but recent studies have provided evidence that some health outcomes improve as the economy deteriorates. The relationship between economic downfalls and health is not straightforward; it is important to look at how health has been impacted in one of the areas hit hardest by the recession. Las Vegas, Nevada was previously considered recession-proof, seemingly unaffected by previous economic downturns exhibited by the rest of the country. However, during the Great Recession of 2007-2009, Las Vegas led the country in highest rates of unemployment and foreclosures. This was quite a collapse for a …

Using Two Simulation Tools To Teach Concepts In Introductory Astronomy: A Design-Based Research Approach, Pamela A. Maher

UNLV Theses, Dissertations, Professional Papers, and Capstones

Technology in college classrooms has gone from being an enhancement to the learning experience to being something expected by both instructors and students. This design-based research investigation takes technology one step further, putting the tools used to teach directly in the hands of students. The study examined the affordances and constraints of two simulation tools for use in introductory astronomy courses. The variety of experiences participants had using two tools; a virtual reality headset and fulldome immersive planetarium simulation, to manipulate a lunar surface flyby were identified using a multi-method research approach with N = 67 participants. Participants were recruited …

Cost Comparison Of Cement Concrete And Polymer Concrete Manholes In Sewer Systems, Sayan Sakhakarmi

UNLV Theses, Dissertations, Professional Papers, and Capstones

Cement concrete manholes are generally used in sewer networks in the United States. However, these concrete manholes are highly vulnerable to chemical corrosion and require frequent maintenance and replacement. Polymer concrete manholes as a substitute to the cement concrete manholes in water and wastewater pipelines have proved to have longer service life and more resistance to various chemical corrosions than normal concrete manholes. Despite the benefits that polymer concrete manholes offer, the higher initial installation cost has been a barrier to its wide application in public works. This study has been conducted to compare the cost of cement concrete manholes …

Probing Broad Line Regions Of Active Galactic Nuclei, Champika Sandamali Weerasooriya

UNLV Theses, Dissertations, Professional Papers, and Capstones

The broad line regions (BLR) of Type I Active galactic nuclei (AGN) are too small to be spatially resolved even with the most powerful telescopes available. Observations suggest that BLR gas is moving under the influence of the gravitational potential of the central supermassive black-hole (SMBH) and responds to the variations in the ionizing continuum flux of the accretion disk, giving rise to broad emission line variations with a time delay. Reverberation mapping campaigns seek to use this time variability to resolve the BLRs in the time domain instead of spatial domain, providing a way to infer geometry and kinematics …

The Effects Of Exhaust Vent Location On Thermal Comfort Inside The Residential Buildings Equipped With An Evaporative Cooling System, Armin Saraei

UNLV Theses, Dissertations, Professional Papers, and Capstones

Inlet and outlet conditions, Including size and location, have significant effects on the air distribution, temperature, humidity and thermal comfort in the buildings. In the current study, various strategies are presented for exhaust air vents and the effects of inlet and outlet vents locations are evaluated on providing thermal comfort in the residential and industrial buildings. To provide thermal comfort, three key factors need to be investigated based on ASHRAE standard 55- 2013 as follows: Comfort Zone, Thermal Sensation and Draft Rate. Flow distribution is studied as well in order to investigate the strategies, which make more vorticity in the …

Exercise, Learning And Emotional Health: Interdisciplinary Approaches To Translational Action, Tessa L. Koschel

UNLV Theses, Dissertations, Professional Papers, and Capstones

Exercise positively effects physical, psychological and neurological wellbeing. Though the population at large is becoming increasingly aware of the multi-faceted benefits of exercise, the majority of people fail to meet daily exercise recommendations. Largely, demands of everyday life such as work, school and family take priority over fitness. The issue therefore becomes a matter of time. In a world of media multi-tasking and immediate gratification, the challenge to health professionals becomes incorporation and manipulation of these consistencies to improve exercise uptake and adherence. Focus must shift from the idea of making additional time for exercise, to adding exercise to time …

Latino Lgbq Young Adults' Coming-Out Experiences, Monica Munoz

UNLV Theses, Dissertations, Professional Papers, and Capstones

There is limited research on Latino LGBQ individuals and their coming-out experiences. To understand the coming out process of Latino LGBQ individuals, interviews were conducted with 10 Latino LGBQ young adults between the ages of 18 and 30 years old. Using Moustakas (1994) phenomenological approach, six themes derived from the study: (a) The disclosure process impacts family closeness and distance, (b) Latino LGBQ individuals’ family members enter a state of disbelief about their sexual orientation, (c) control of disclosure influences Latino LGBQ young adults’ perception of their coming-out experience, (d) the experience of coming-out for Latino LGBQ individuals is influenced …

Simulating Distributed Battery And Solar Array Placement For Voltage Regulation, Michael Misch

UNLV Theses, Dissertations, Professional Papers, and Capstones

Energy storage has been around for many years in the US, mainly in the form of pumped hydro. However, in recent years, other storage technologies have developed quickly, with lithium ion batteries receiving significant investment and delivering technological and price improvements. Electricity storage has the potential to assist the US in transitioning to a smarter grid, as well as enabling increasing amounts of renewable generation to connect to the grid, without costly reinforcement works. Electricity storage can be co-located with power generation assets, installed along distribution systems for network services, or placed behind the meter, i.e., on the customer’s premises. …

Phase Equilibria, Compressibility, And Thermal Analysis Of Bastnaesite-(La), Richard Lee Rowland

UNLV Theses, Dissertations, Professional Papers, and Capstones

Understanding basic material properties of rare earth element (REE) bearing minerals such as the temperatures and pressures at which different phases are thermodynamically stable and how they respond to changes in temperature and pressure can assist in understanding how economically viable deposits might form, thereby potentially leading to the discovery of new deposits. Bastnaesite is the most common REE bearing mineral mined. The lanthanum-fluoride end member, bastnaesite-(La), was synthesized. Synthetic bastnaesite-(La) and lanthanum oxyfluoride was investigated using thermal analysis at ambient pressure and high temperature through the methods of thermogravimetric analysis, differential scanning calorimetry, and heated stage powder X-ray diffraction. …

The Balance Between Privacy And Safety In Police Uav Use: The Power Of Threat And Its Effect On People’S Receptivity, Mari Sakiyama

UNLV Theses, Dissertations, Professional Papers, and Capstones

Unmanned aerial vehicles (UAVs), also known as drones, are an innovative technology that has received significant interest from the law enforcement community. The size and ability, technological capability, and cost effectiveness of UAVs make them an attractive tool for law enforcement agencies to utilize in the course of operations, including domestic surveillance. Despite the potential benefits to the society, public perception of police UAV use is mixed, and “Not Over My Backyard (NOMBY)” attitudes relevant to Fourth Amendment privacy concerns are consistently demonstrated across studies related to public perceptions on this emerging technology.

The present study focuses on the relative …