Digital Commons Network^™

Dietary Intake And Energy Expenditure Of Pararescuemen During Routine Training, Andrea Woita

UNLV Theses, Dissertations, Professional Papers, and Capstones

Pararescuemen are one group of Air Force Special Operations Forces (SOF) who engage in vigorous physical training to achieve mission readiness. This type of training requires high energy expenditures and matching dietary intake to support basic physiological needs and to meet performance demands. However, few studies have investigated the energy expenditure and dietary intake of SOF and none have specifically examined these behaviors in Pararescuemen. The goal of this investigation was to determine the energy expenditure and dietary intake of Pararescuemen during routine training - a period when these operators receive supervision and guidance for performance improvements, recovery, and career …

Eye Repair In Xenopus Laevis, Cindy Xuan-Mai Kha

UNLV Theses, Dissertations, Professional Papers, and Capstones

Eye development in vertebrates of complex steps that include specific interactions of the neuroectoderm and overlying head ectoderm. The African clawed frog, Xenopus laevis (X. laevis), has a well-characterize eye developmental pathway and is an established model for eye regeneration research. Additionally, Xenopus frogs have high regenerative abilities to regenerate individual eye tissues such as the retina, lens, and cornea. However, it was previously shown that the removal of the specified eye field during the neurulation stage or an eye during the swimming tadpole stage does not permit an eye to regenerate. Here we will describe a model for investigating …

Meshless Method For Simulation Of Compressible Flow, Ebrahim Nabizadeh Shahrebabak

UNLV Theses, Dissertations, Professional Papers, and Capstones

In the present age, rapid development in computing technology and high speed supercomputers has made numerical analysis and computational simulation more practical than ever before for large and complex cases. Numerical simulations have also become an essential means for analyzing the engineering problems and the cases that experimental analysis is not practical. There are so many sophisticated and accurate numerical schemes, which do these simulations. The finite difference method (FDM) has been used to solve differential equation systems for decades. Additional numerical methods based on finite volume and finite element techniques are widely used in solving problems with complex geometry. …

Secular Resonances During Main-Sequence And Post-Main-Sequence Planetary System Dynamics, Jeremy L. Smallwood

UNLV Theses, Dissertations, Professional Papers, and Capstones

We investigate gravitational perturbations of an asteroid belt by secular resonances. We ap- ply analytic and numerical models to main–sequence and post–main–sequence planetary systems. First, we investigate how the asteroid impact rate on the Earth is affected by the architecture of the planetary system. We find that the nu6 resonance plays an important role in the asteroid collision rate with the Earth. Compared to exoplanetary systems, the solar system is somewhat special in its lack of a super–Earth mass planet in the inner solar system. We therefore consider the effects of the presence of a super–Earth in the terrestrial planet …

A Program Evaluation Of The State Of Nevada's Certified Public Manager Program, Carolyn Faircloth, Pat La Putt, Diana Ritter, Shawntay Tyler

UNLV Theses, Dissertations, Professional Papers, and Capstones

The State of Nevada Certified Public Manager (NVCPM) Program is a nationally accredited leadership development program that has been designed to prepare managers and supervisors in the public sector. A program evaluation of the NVCPM Program was conducted to determine the effectiveness of the services delivered to program participants in terms of development of leadership skills and career advancement. In addition, this evaluation examined the value that the NVCPM provides to the agencies that the participant worked for related to the implementation of the participant’s Capstone Project. This evaluation also sought to compare the NVCPM Program with other accredited programs …

Program Evaluation For The Nevada School Of The Arts, Cherie Garrity, Lisa Levine, Angela Phillips, Izack Tenorio

UNLV Theses, Dissertations, Professional Papers, and Capstones

A program analysis and evaluation of the Nevada School of the Arts (NSA), a forty-year-old non-profit organization that provides musical education and advocates for the arts in Southern Nevada, was conducted. This paper serves as the completed report for the Nevada School of the Arts program evaluation and provides thorough analysis, findings from the graduate students’ research, observations, and recommendations for the organization to voluntarily accept.

[Community Oriented Policing (Cop) Evaluation], Kaci Kerfeld, Taylor Glaser, James Koloskie

UNLV Theses, Dissertations, Professional Papers, and Capstones

An in-depth review of the use of force policies and practices used by the Las Vegas Metropolitan Police Department (LVMPD) was conducted after the alarming rate of officer involved shootings was publicized by the Las Vegas Review Journal (RJ) in 2011. The 75 recommendations handed down to LVMPD after the review not only helped guide the agency towards procedural and reporting changes, but also paved a way for the agency to begin rebuilding trust in police within the community. This program evaluation focuses on the community engagement efforts put forth by the Bolden Area Command (BAC) community oriented policing (COP) …

Policy Analysys And Program Evaluation: Real Talk Youth Impact Program, Carlton Monroe, Liam Maccaul, Natalie Lorenzano, Vincentiu Anghel

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study was to evaluate Real Talk’s effectiveness on having a positive impact with at-risk youth here in Southern Nevada. Using data collected by Real Talk, the goal was to find new strategies for the program to further expand its outreach based on the impact they have made on the students that have successfully completed the program.

Development And Psychometric Evaluation Of The Unfinished Business In Bereavement Scale, Kara Klingspon

UNLV Theses, Dissertations, Professional Papers, and Capstones

Bereavement is one of life's greatest challenges, but most grievers recover within approximately six months after the loss. Prolonged Grief Disorder or Complicated Grief describes the 10-20% who continue to struggle with chronic and severe symptoms such as yearning and/or longing for the deceased. Those with prolonged grief are at elevated risk for a number of detrimental physical and mental health outcomes. Unfinished business, which refers to a subjective perception that something was left undone, unsaid, or unresolved with the deceased, is one marker indicating greater risk for such symptomology. Although a common target for intervention, no empirically validated tool …

Consumer Attitudes And Purchase Intentions Of Cruises In China, Wenjia Han

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study examined the impact of consumers’ attitudes towards cruises on their purchase intention of cruises. A sample of 229 past outbound travelers in China were surveyed via an online self-administered survey sent by a Chinese online survey platform named ’So Jump’. The survey used a two-part statement evaluation format to measure cruise purchase intentions and the factors that impact the intentions. Respondents were asked to rate their level of agreement, the important of the sub-factors, and the likelihood to participate in certain activities on a seven-point Likert scale. Use the theory of planned behavior as the base, the three …

Optimization Of Prosthetic Hands: Utilizing Modularity To Improve Grip Force, Grasp, And Versatility, Jordan William Harris

UNLV Theses, Dissertations, Professional Papers, and Capstones

It has been demonstrated that although many varieties of upper limb prosthetics exist, commercially available prosthetics are outdated and unsatisfactory. Ineffectiveness and limitations have led to some prosthesis wearers having to own multiple devices, whereas others have given up on them entirely. Even though ample research has been conducted to design and test new hand designs, the industry appears to rest in an overall stagnated state.

It was proposed here, that one problem with prosthetic research is an excess of variables involved in testing, and therefore the improper application of the scientific method. It seems that each time a research …

Automated Quantification Of White Blood Cells In Light Microscopic Images Of Injured Skeletal Muscle, Yang Jiao

UNLV Theses, Dissertations, Professional Papers, and Capstones

Muscle regeneration process tracking and analysis aim to monitor the injured muscle tissue section over time and analyze the muscle healing procedure. In this procedure, as one of the most diverse cell types observed, white blood cells (WBCs) exhibit dynamic cellular response and undergo multiple protein expression changes. The characteristics, amount, location, and distribution compose the action of cells which may change over time. Their actions and relationships over the whole healing procedure can be analyzed by processing the microscopic images taken at different time points after injury. The previous studies of muscle regeneration usually employ manual approach or basic …

An Evaluation Of The Effects Of The Coach-Athlete Relationship On Athlete Mental Health, Corey Rae Phillips

UNLV Theses, Dissertations, Professional Papers, and Capstones

There is a demand to target the mental health needs of collegiate athletes, who are

considered to be at-risk for physiological injuries, psychological disturbances, and

academic problems. Due to the dynamic nature of the coach-athlete relationship,

assessing the impact coaches have on athletes’ psychological wellbeing is imperative to

shift the way mental health is addressed within this population. The current study aims to

address the relationship between perceived problems in the coach-athlete relationship and

mental health of college students who participate in organized sport. I hypothesize that

problems in the relationship have serious implications for athletes and mental health

providers …

Sparse Mri And Ct Reconstruction, Ali Pouryazdanpanah Kermani

UNLV Theses, Dissertations, Professional Papers, and Capstones

Sparse signal reconstruction is of the utmost importance for efficient medical imaging, conducting accurate screening for security and inspection, and for non-destructive testing. The sparsity of the signal is dictated by either feasibility, or the cost and the screening time constraints of the system. In this work, two major sparse signal reconstruction systems such as compressed sensing magnetic resonance imaging (MRI) and sparse-view computed tomography (CT) are investigated.

For medical CT, a limited number of views (sparse-view) is an option for whether reducing the amount of ionizing radiation or the screening time and the cost of the procedure. In applications …

Self-Monitoring: A Behavioral Intervention For Children Attending Head Start, Samantha Riggleman

UNLV Theses, Dissertations, Professional Papers, and Capstones

Addressing the needs of preschoolers with behavioral problems is important, as these issues often have long-term impacts on the outcomes of students (Fox et al., 2002). Self- monitoring strategies and techniques have the potential to improve the outcomes of this population of children. Self-monitoring requires students to pay attention to a specific aspect of their behavior and record whether the behavior being monitored has occurred or not occurred (Amato-Zech et at., 2006). Although preschoolers are capable of self-monitoring (Otero & Haut, YEAR), it is not widely used in early childhood education settings for increasing compliance or appropriate behaviors. A component …

Vertical Transfer And Baccalaureate Completion For Adult Community College Students: Milestones And Momentum Points That Matter, Laura Yavitz

UNLV Theses, Dissertations, Professional Papers, and Capstones

Adult community college students, age 25 and older, have been understudied in the extensive college transfer literature, which otherwise focuses on traditional-age college students age 18 through 24, or on students of unspecified age. According to the theoretical framework of academic momentum articulated by Clifford Adelman (2006), enrollment patterns during college can speed up or slow down students’ progress. The limited transfer research on adult students suggests that adults respond differently than traditional-age students to certain academic momentum variables that can impact vertical transfer and baccalaureate outcomes.

This quantitative longitudinal study examined 1,712 student records using sequential logistic regression to …

Defining Problematic School Absenteeism Using Nonparametric Modeling, Kyleigh Kay Skedgell

UNLV Theses, Dissertations, Professional Papers, and Capstones

Contemporary classification models of school absenteeism often employ a multitier approach for organizing assessment and treatment strategies. Researchers have yet to agree, however, on how to objectively define problematic school absenteeism and identify demarcation points for each tier. The present study aimed to inform a multitier approach by determining the most relevant risk factors for problematic school absenteeism. The most useful targets of assessment for problematic school absenteeism are also addressed. The present study examined problematic school absenteeism defined at three distinct cutoffs: 1%, 10%, and 15% of full school days missed. The present study evaluated interactions among several youth- …

Specification Of Mixed Logit Models Using An Optimization Approach, Cristian David Arteaga Sanchez

UNLV Theses, Dissertations, Professional Papers, and Capstones

Mixed logit models are a widely-used tool for studying discrete outcome problems. Modeling development entails answering three important questions that highly affect the quality of the specification: (i) what variables are considered in the analysis? (ii) what are going to be the coefficients for these variables? and (iii) what density function these coefficients will follow? The literature provides guidance; however, a strong statistical background and an ad hoc search process are required to obtain the best model specification. Knowledge of the problem context and data is required. Given a dataset including discrete outcomes and associated characteristics the problem to be …

Analysis Of Human Movement Patterns During Endurance Running, Joshua Paul Bailey

UNLV Theses, Dissertations, Professional Papers, and Capstones

Endurance running and participation in racing events has flourished over the last decade. Recreational runners enter the training period for an upcoming race at differing levels of fitness and training. As individuals sign-up for the race, they typically follow the commitment with an increase in training load. The increases in training load are accomplished through a combination of increasing mileage, or duration of running, and running intensity through increase velocity. These increases are theoretically being applied in a progressive overload principle, where the musculoskeletal system has time to adapt to the breakdown provided from the previous training session. Progressive overload …

Instrumentation And Measurement Of Thermoelectric And Structural Properties Of Binary Chalcogenides And Half-Heusler Alloys At Extreme Conditions Using A Paris-Edinburgh Press, Jason Lee Baker

UNLV Theses, Dissertations, Professional Papers, and Capstones

Understanding the high-pressure behavior of transport properties has been a driving force in the study of materials under extreme conditions for well over a century being pioneered by P.W. Bridgman in the early 20th century. Research dedicated to the study of these properties leads to a variety of important applications: exploration of insulator to semi-conductor to metal, structural, and electronic phase transitions, correlation of pressure-induced structural phase transitions and the electronic properties along phase boundaries, identifying electronic topological transitions, testing the validity of theoretical models and providing input parameters for calculations at high-pressure and high-temperature conditions, exploration of sample synthesis …

Object Language/On Defining Sculpture, Thaddeus Barak Moore Celia-Zoellner

UNLV Theses, Dissertations, Professional Papers, and Capstones

Object Language

In the current era we in the Western, developed world, have almost universal free and uninhibited access to almost every piece of information in existence. Increasingly, regardless of the source, material presented to us as fact has become increasingly suspect. Together, these two things mean this endless stream of data is useless. The question is how to combat this decline, how to reverse the process of a meaningless, constant data-dump. The answer lies in the language used to communicate information. Language is the means by which we communicate complex ideas and knowledge from person to person. Language is …

A Study Of Strengthening Secondary Mathematics Teachers’ Knowledge Of Statistics And Probability Via Professional Development, Lina Devaul

UNLV Theses, Dissertations, Professional Papers, and Capstones

A professional development program (PSPD) was implemented to improve in-service secondary mathematics teachers’ content knowledge, pedagogical knowledge, and self-efficacy in teaching secondary school statistics and probability. Participants generated a teaching resource website at the conclusion of the PSPD program. Participants’ content knowledge change and self-efficacy change were measured. After PSPD, three participants were selected to represent three types of change. Teachers’ classroom instructions were video-taped and analyzed to explore the enactment of PSPD components, such as activities and concepts. Interviews were conducted to assess factors that facilitated teachers’ change and the enactment of PSPD components. Preservice teachers who majored in …

The Impact Of Supportive Parenting On Career Confidence Of Young Adults, Salma Ettefagh

UNLV Theses, Dissertations, Professional Papers, and Capstones

Despite freedoms for women in modern economies, there remains a large disparity between female graduation rates and women achieving high-ranking positions in the business world. Confidence may be one factor why women are underrepresented in the executive class.This

exploratory research investigated if supportive parenting has an effect on self-reported career confidence among undergraduates. A quantitative ANOVA analysis found that instrumental support factors (for example, money and tuition) overall were significant in predicting performance-based confidence, particularly for males. However, qualitative results showed that supportive parenting and confidence are not always correlated.

Remote Sensing Of The Environmental Impacts Of Utility-Scale Solar Energy Plants, Mohammad Masih Edalat

UNLV Theses, Dissertations, Professional Papers, and Capstones

Solar energy has many environmental benefits compared with fossil fuels but solar farming can have environmental impacts especially during construction and development. Thus, in order to enhance environmental sustainability, it is imperative to understand the environmental impacts of utility-scale solar energy (USSE) plants. During recent decades, remote sensing techniques and geographic information systems have become standard techniques in environmental applications. In this study, the environmental impacts of USSE plants are investigated by analyzing changes to land surface characteristics using remote sensing. The surface characteristics studied include land cover, land surface temperature, and hydrological response whereas changes are mapped by comparing …

Cyclist Detection, Tracking, And Trajectory Analysis In Urban Traffic Video Data, Farideh Foroozandeh Shahraki

UNLV Theses, Dissertations, Professional Papers, and Capstones

The major objective of this thesis work is examining computer vision and machine learning detection methods, tracking algorithms and trajectory analysis for cyclists in traffic video data and developing an efficient system for cyclist counting. Due to the growing number of cyclist accidents on urban roads, methods for collecting information on cyclists are of significant importance to the Department of Transportation. The collected information provides insights into solving critical problems related to transportation planning, implementing safety countermeasures, and managing traffic flow efficiently. Intelligent Transportation System (ITS) employs automated tools to collect traffic information from traffic video data. In comparison to …

Biomechanical Adjustments During Landing In Response To Task Perturbations, John Robert Harry

UNLV Theses, Dissertations, Professional Papers, and Capstones

Landing strategies are evaluated to determine a performer’s favored neuromusculo-skeletal solution for the performance of the task. Depending on the strategy employed, a performer might increase his or her musculoskeletal injury potential, as defined by increased impact forces and/or demands on the involved joints. In recent history, the manner in which a performer modifies his or her strategy has been evaluated following the application of an added external mass during the impact phase of landings performed from atop an elevated platforms or a hanging position from a raised bar. Furthermore, the strategies evaluated in contemporary research are quantified using biomechanical …

Evaluation Of The Properties Of Rubberized Asphalt Binders And Mixtures, Kazem Jadidirendi

UNLV Theses, Dissertations, Professional Papers, and Capstones

Rubber modified binder samples are tested and evaluated based on SHRP requirements. Best rubber content is suggested for modifying binder. Rubber modified asphalt mixtures were manufactured and tested. Based on Hveem stability and volumetric properties of asphalt mixtures, optimum binder content is evaluated and reported. Performance properties of asphalt mixtures made with various rubber size and method were analyzed and compared. An ultrasound measurement performed on asphalt mixture samples and the results were analyzed. It is discovered that rubber improves asphalt viscosity and resistance to rutting deformation. Rubber also increases asphalt’s dynamic modulus.

Same-Sex Focus In The Visual Attention Of Heterosexual Women: An Investigation Of Potential Explanations, Sarah C. Jones

UNLV Theses, Dissertations, Professional Papers, and Capstones

When simultaneously presented with male and female erotic visual stimuli, heterosexual women have a significantly less category-specific pattern of visual attention, wherein they spend much more time viewing same sex stimuli than do men. Heterosexual men, on the other hand, have a much more category-specific pattern of visual attention, allocating nearly all of their visual attention to the female stimuli. The present study investigated several proposed explanations for women’s more diffuse visual attention patterns: that heterosexual women may find some arousal value in viewing erotic female images given their greater sexual fluidity/erotic plasticity in comparison to men, that women may …

Impact Of Ingredient Branding On The Hotel Brand: Spillover Effect Of Branded Amenities, Eun Joo Kim

UNLV Theses, Dissertations, Professional Papers, and Capstones

Ingredient branding is a popular marketing strategy, in which a brand uses a different branded product as a component in the main one. Utilizing ingredient branding, a host brand can benefit from the positive evaluation of a component brand that customers are already aware of. Although the hotel industry has applied a substantial number of other brands as internal factors, there has been little awareness or research on ingredient branding. The main purpose of the study was to investigate 1) whether ingredient branding has a positive impact on a hotel brand equity and 2) whether the effect varies for different …

Hip Adduction: Abduction Ratio Differences Between Collegiate Male And Female Soccer Players, Addie Lucci

UNLV Theses, Dissertations, Professional Papers, and Capstones

Context: Soccer is a high-intensity sport resulting in injuries. Strength ratios have been used to identify areas of weakness and help prevent further injuries. Objective: The purpose of this study was to determine if there was a difference in hip adduction: abduction ratios in collegiate male and female soccer players. The hypothesis was that males will have a lower ratio than females. Design: Cohort Study. Setting: Research Center. Participants: Five male and nine female NCAA Division 1 soccer players were recruited for this study. Intervention: Independent variable is gender. Biodex Isokinetic Dynamometer was used for data collection. The subjects performed …