Digital Commons Network^™

Global Climate Change: The Political Impact Of Global Warming On Developing Countries. The Case Studies Of Egypt And Oman, Eugene Thomas O'Neal

UNLV Theses, Dissertations, Professional Papers, and Capstones

The discourse of climate change has become important in the field of political science, as well as in the policy-making community. Climate change has become a political phenomenon that has and will greatly impact political stability regionally and globally. Using the ecological security theory as a framework, I explored the relationship between climate change and political stability in developing countries.

This study utilizes both qualitative and quantitative analyses to investigate the relationship between climate change and its effects on political volatility in developing countries. Using regression models, the author examined all non-OECD countries (140 countries) and their relationship to political …

New Early Miocene 40ar/39ar Ages For Nakwai, Northwest Kenya, Africa, And Paleontological Analysis Of Meroehyrax Kyongoi Dentition, Dawn Elena Reynoso

UNLV Theses, Dissertations, Professional Papers, and Capstones

Nakwai is a fossiliferous region in the Turkana Basin of northwestern Kenya. Until recently the only ages for the Nakwai formation were based on biostratigraphic correlation with Losodok; a late Oligocene site located to the north of Nakwai. The new 40Ar/39Ar ages in this study range from 23 Ma to 15 Ma and constrain the upper portions of the Nakwai section to the early Miocene. These ages make it the only securely dated fossil locality in the region that represents the earliest Miocene; all of the other early Miocene fossil localities date back to ~20 Ma or younger. The time …

Subalklaine Volcanism In The Eastern Basin And Range Province: Examples From The Miocene Mccullough Range Volcanic Field And The Pliocene To Holocene Black Rock Desert Volcanic Field, Racheal Leighann Johnsen

UNLV Theses, Dissertations, Professional Papers, and Capstones

This dissertation is composed of three papers that apply geologic mapping, whole rock geochemical and isotopic analysis, and mineral chemistry to describe two large, long-lived (~6 million years), and compositionally heterogeneous volcanic fields and posit sources of the rock types present in each. These fields are the McCullough Range in southern Nevada, which was a locus of volcanic activity from ~19 - 12 Ma and the Black Rock Desert volcanic field in west-central Utah, which began forming at ~6 Ma and is still active today, with the most recent eruption occurring ~720 years ago.

Chapter Two is composed of a …

Exploring The Inner Experience Of Veterans With Posttraumatic Stress Disorder, Stacy Reger

UNLV Theses, Dissertations, Professional Papers, and Capstones

Military veterans have returned from combat changed by exposure to trauma for as long as history has been recorded. The field of psychology contains a vast literature describing and attempting to understand Posttraumatic Stress Disorder (PTSD) and its detrimental effects on the lives of individuals with the disorder. Despite the volume of study dedicated to PTSD in the literature, in-depth accounts of the lived experience of individuals with PTSD are rare. The current study utilized Descriptive Experience Sampling (DES), a method based on apprehending high-fidelity accounts of momentary inner experience, to explore the inner experience of eight Operation Iraqi Freedom …

A Survey Of Ekeland's Variational Principle And Related Theorems And Applications, Jessica Robinson

UNLV Theses, Dissertations, Professional Papers, and Capstones

Ekeland's Variational Principle has been a key result used in various areas of analysis such as fixed point analysis, optimization, and optimal control theory. In this paper, the application of Ekeland's Variational Principle to Caristi's Fixed Point Theorem, Clarke's Fixed Point Theorem, and Takahashi's Minimization theorem is the focus. In addition, Ekeland produced a version of the classical Pontryagin Mini- mum Principle where his variational principle can be applied. A further look at this proof and discussion of his approach will be contrasted with the classical method of Pontryagin. With an understanding of how Ekeland's Variational Princple is used in …

Corrugated Ware Function And Use As Identity Markers At The Harris Site, Danielle Romero

UNLV Theses, Dissertations, Professional Papers, and Capstones

This thesis examines the function of corrugated vessels and addresses pithouse and group identity through the differences in technological and design style at the Harris site (LA 1867), a Late Pithouse period (550-1000 CE) Mimbres Mogollon pithouse village. Corrugated wares have long been defined as utilitarian cooking vessels. The goal of this research is to shed more light on corrugated wares as a ceramic type that served a variety of functions outside of cooking, including a presence in ritual spheres. This research also explores the use of technological and design styles of corrugated wares to discuss individual and group identity. …

Hemispheric Asymmetry In The Perception Of Musical Pitch Structure, Matthew Adam Rosenthal

UNLV Theses, Dissertations, Professional Papers, and Capstones

Both the left and right hemispheres contribute to the perception of pitch structure

in music. Music researchers have attempted to explain the observed asymmetries in the perception of musical pitch structure by characterizing the dominant processing style of each hemisphere. However, no existing characterizations have been able to account for all of the empirical findings. To better explain existing empirical findings, this dissertation characterizes the left hemisphere as dominant in temporal pitch processing (i.e. with respect to the sequential ordering of pitches) and the right hemisphere as dominant in non-temporal pitch processing (i.e. without respect to the sequential ordering of …

Identification Of Long Term Changes And Evaluation Of The Relationships Among Streamflow Variability And Oceanic-Atmospheric Indices, Soumya Sagarika

UNLV Theses, Dissertations, Professional Papers, and Capstones

To examine the effects of climate variability on streamflow, this thesis presents a comprehensive analysis of the streamflow variability of the continental United States and its association with oceanic-atmospheric indices. First, the presence of trends with consideration of short term and long term persistence followed by shifts over the past years in the continental U.S. streamflow were analyzed by using the non-parametric tests: Mann Kendall and Pettitt. Second, the spatio-temporal relationships between seasonal streamflow variability of continental U.S. and sea surface temperatures (SST) and 500 mbar geopotential height (Z500) of the Pacific and Atlantic were established using the singular valued …

Modeling Pavement Distress Rates Within U.S. Air Force Airfields, Lauren Sahagun

UNLV Theses, Dissertations, Professional Papers, and Capstones

Through the review of Pavement Condition Index (PCI) surveys completed at Air Force installations scattered across the continental United States, pavement engineers at the Air Force Civil Engineer Center propose that the predominant factor contributing to pavement distress development is climate. They suggest that within each pavement distress type (i.e. alligator cracking, rutting, spalling, etc.) a geographic pattern exists that is strongly correlated to the conventional climate zones within the US. Knowledge of these geographic patterns would equip pavement engineers and asset managers with a powerful tool to develop purposeful maintenance strategies specific to each distress type.

The following approach …

Remote Sensing Based On Hyperspectral Data Analysis, Ershad Sharifahmadian

UNLV Theses, Dissertations, Professional Papers, and Capstones

In remote sensing, accurate identification of far objects, especially concealed objects is difficult. In this study, to improve object detection from a distance, the hyperspecral imaging and wideband technology are employed with the emphasis on wideband radar. As the wideband data includes a broad range of frequencies, it can reveal information about both the surface of the object and its content. Two main contributions are made in this study:

1) Developing concept of return loss for target detection: Unlike typical radar detection methods which uses radar cross section to detect an object, it is possible to enhance the process of …

Designing A Biomimetic Testing Platform For Actuators In A Series-Elastic Co-Contraction System, Ryan Tyler Schroeder

UNLV Theses, Dissertations, Professional Papers, and Capstones

Actuators determine the performance of robotic systems at the most intimate of levels. As a result, much work has been done to assess the performance of different actuator systems. However, biomimetics has not previously been utilized as a pretext for tuning a series elastic actuator system with the purpose of designing an empirical testing platform. Thus, an artificial muscle tendon system has been developed in order to assess the performance of two distinct actuator types: (1) direct current electromagnetic motors and (2) ultrasonic rotary piezoelectric motors. Because the design of the system takes advantage of biomimetic operating principles such as …

Client Selected Music Based Effects On Marital And Couples Therapy, Kevin Matthew Smith

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study was designed to examine the interaction of music-based interventions in the therapeutic process of Martial and Couples Therapy. The use of pre-recorded music was found to be under researched within the literature and created a void within the knowledge that clinicians have about how music might enhance effectiveness of treatment. The inclusion of music in this process is not currently known, which led to this study being conducted. Through a phenomenological lens, the awareness and understanding of how clients react and experience pre-recorded music during the therapeutic process, while still having a selection of options to preserve autonomy, …

Influence Of Social Media In Stages Of Democratization, Ira David Sternberg

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Internet and social media have become a pervasive part of our global environment over the last few decades, utilized primarily for commerce, communication, and entertainment. The last several years, however, have seen an increase in the application of social media in political discourse and activities, primarily in developed democracies and autocracies. Does that mean social media can influence democratic transition and consolidation in the 21st century? Are the examples of the Green Movement in 2009 and the Arab Spring in 2011 a validation of social media in service to democracy, or is social media also a tool for surveillance …

Empirical Studies On Interest Rate Derivatives, Xudong Sun

UNLV Theses, Dissertations, Professional Papers, and Capstones

Interest rate models are the building blocks of financial market and the interest rate derivatives market is the largest derivatives market in the world. In this dissertation, we shall focus on numerical pricing of interest rate derivatives, estimating model parameters by Kalman filter, and studying various models empirically. We shall propose a front-fixing finite element method to price the American put option under the quadratic term structure framework and compare it with a trinomial tree method and common finite element method. Numerical test results show the superiority of our front-fixing finite element method in the aspects of computing the option …

The Effects Of Disbursement Of Foreign Aid To African Countries: A Case Study Of Ghana And Ivory Coast (Cote D'Ivoire), Jemilat Kike Thompson-Odoom

UNLV Theses, Dissertations, Professional Papers, and Capstones

The African continent has received aid from developed countries for decades. This thesis seeks to examine the impact of foreign aid to developing countries using Ghana and Ivory Coast (Cote D'Ivoire) as case studies. The study will contribute to the existing body of knowledge by examining the effectiveness of foreign aid. The study is based on data gathered primarily from development partners and donor countries. Indicators such as mortality rate, tuberculosis and access to sanitation facilities were used to test the failure or success of foreign aid in Ghana and Ivory Coast. Corruption perceptions from both countries were also analyzed …

A Study Of Graphical Permutations, Jessica Thune

UNLV Theses, Dissertations, Professional Papers, and Capstones

A permutation π on a set of positive integers {a_1,a_2,...,a_n} is said to be graphical if there exists a graph containing exactly a_i vertices of degree (a_i) for each i. It has been shown that for positive integers with a_1

Estimating Aquifer Characteristics And Identification Of A Sub-Basin For Artificial Storage And Recovery, Northeastern Ivanpah Valley, Nevada, Nikolas James Taranik

UNLV Theses, Dissertations, Professional Papers, and Capstones

The identification of a structurally controlled sub-basin with impediments to groundwater flow within Southern Nevada could provide a favorable area for artificial recharge and storage of native or imported water, extending the water supply of Southern Nevada. For this purpose, the area of northeastern Ivanpah Valley was investigated to determine the ability of the aquifer to accept and recover stored water, if acceptable water quality existed in the potential sub-basin storage area, and if structural controls impeded and isolated groundwater flow. The results found evidence the proposed sub-basin is structurally isolated by the McCullough, Roach, and Stateline Faults, which was …

Factor Structure Of The Cpt-Ii, Mary Vertinski

UNLV Theses, Dissertations, Professional Papers, and Capstones

The current study investigates the factor structure of the Conners' Continuous Performance Test-II (CPT-II) in four pediatric samples of participants: (a) patients with traumatic brain injury, (b) healthy controls, (c) patients with various clinical diagnoses, and (d) all of the previously mentioned subjects combined. Confirmatory factor analyses (CFA) were used to investigate a one-, three- and four-factor model fit of the data. None of the models examined were an adequate fit for the data; however, it appears that the four-factor model seemed to be the best fitting of the models examined. Failure to find reasonably adequate fit precluded further analyses.

Predicted Performance Of A Skytherm North, A Highly Insulated Building Envelope System And A Frost Protected Shallow Foundation, Kitrina Ann Stratton

UNLV Theses, Dissertations, Professional Papers, and Capstones

How do you design a durable, sustainable, and financeable Net Zero Energy house for a cold weather climate using little or no external energy that is also affordable? Reviewing all of the factors that would influence the design and materials selection of an appropriate response to the issues, the perfect system for housing people, whether it is in response to affordability, durability, comfort, cultural sensitivity, appearance or being locally appropriate, is using some kind of straw bale construction system with an integrated frost protected shallow foundation and a SkyTherm North design.

The focus and intention of this research is to …

Analysis Of Lithic Assemblages From Virgin Branch Puebloan Sites On The Shivwits Plateau, Thomas Carl Wambach

UNLV Theses, Dissertations, Professional Papers, and Capstones

Flaked stone technology, as with any utilitarian technology, is studied by archaeologists for a number of reasons. Often lithics are studied to understand the activities of a prehistoric group. Everything from the final product to the waste material can, when recovered in suitable amounts, reflect the conscious decisions of its creator. Understanding this helps to embed all stages of stone tool (lithic) use into aspects of human behavior and in understanding the organization of technology.

The Virgin Branch Puebloans are the westernmost sub-branch of the Ancestral Puebloan culture of the American Southwest. While some of their expanse has been studied …

The Untold History Of Nevada's Shield Statute, Matthew Travis Ward

UNLV Theses, Dissertations, Professional Papers, and Capstones

The history of American journalism is replete with anecdotes about news reporters enduring jail and other penalties to protect the identities of confidential sources of information. Since as early as the American Revolution journalists have often found themselves at odds with established authority. In the political cauldron of the late 1960s and early 1970s, U.S. government intrusion into the news gathering process was widespread. The notion the First Amendment protected journalists from revealing sources was invalidated by the Supreme Court's 1972 decision in Branzburg v. Hayes. Many states throughout the nation reacted by codifying a reporter's privilege. Nevada did so …

Decontamination Protocols For Watercraft And Wildland Firefighting Equipment In Preventing The Spread Of Invasive Quagga (Dreissena Rostriformis Bugensis) And Zebra (Dreissena Polymorpha) Mussels, Ashlie Watters

UNLV Theses, Dissertations, Professional Papers, and Capstones

Quagga and zebra mussels (Dreissena rostriformis bugensis and Dreissena polymorpha) are two invasive species introduced via ballast water discharged by large oceanic cargo ships to the North American Great Lakes in the late 1980s. Once established, the mussels spread quickly. In January 2007, D. rostriformis bugensis was discovered in Lake Mead, NV-AZ, and in that same year, mussels were confirmed further south on the Colorado River in Lakes Mojave and Havasu. Dreissenids clog water intake pipes, water filtration systems, and electric generating plants. The mussels also ruin boat motors, damage recreational equipment, and once established in the reservoir, routine maintenance …

Application Of The Transtheoretical Model: Assessing Exercise Behavior In African Americans In A Church-Based Setting, Robin Marie White

UNLV Theses, Dissertations, Professional Papers, and Capstones

Sedentary behavior rates are higher among African-American men and women than in other American races and ethnicities, placing them at greater risk for chronic illness. Routine physical activity reduces the risk of chronic health problems such as: (a) overweight and obesity, (b) type 2 diabetes, (c) hypertension, (d) coronary artery disease, (e) stroke, (f) congestive heart failure, and (g) cancers. Assessment of African-Americans' exercise attitudes in a church-based setting may provide information with which to develop effective interventions to improve physical activity. This descriptive, cross-sectional study used components of the Transtheoretical Model (TTM) to assess whether any associations exist between …

Chinese Outbound Tourists Food Consumption In The U.S.: An Extension Of The Theory Of Planned Behavior, Kaiyang Wu

UNLV Theses, Dissertations, Professional Papers, and Capstones

Although Chinese outbound tourists made enormous economic contribution to the U.S. restaurant industry, they seem to have the tendency to consume Chinese cuisine solely during their international trips. This study applies structural equation modeling (SEM) to evaluate different behavioral beliefs' impact on the intentions of Chinese outbound tourist unfamiliar ethnic food consumption in the U.S. Additionally, this research combines the Theory of Planned Behavior (TPB) and food neophobia, a food-related personality trait to better explain Chinese outbound tourists' food rejection behavior in the U.S.

Results of this study showed safety concern, acceptance of table manners, perceived communication gap and food …

Physical Therapy Non-Treatment Of The Acute Hospital Inpatient, Daniel Lee Young

UNLV Theses, Dissertations, Professional Papers, and Capstones

The detrimental effects of inactivity and mobility extend to the most ill and injured patients in the acute hospital setting. Facilitating the activity and exercise of these most critical patients often requires the skill and expertise of a physical therapist. When physical therapists are involved in the care of hospital inpatients they experience significant benefits; patients experience fewer secondary complications related to their primary illness or injury, they spend less time in critical care units and less time in the hospital overall, and when they leave they go to less restrictive environments and more comfortable care settings. These known benefits …

Gilded Age Visual Media As The Impetus For Social Change: Jacob Riis's Reform Photography And The Antecedents Of Documentary Film, Denitsa Yotova

UNLV Theses, Dissertations, Professional Papers, and Capstones

This thesis examines the birth and evolution of the social documentary genre in visual media. It proposes that a mixture of ideology, technology, and social awareness are necessary for a successful social reform. Its review and study of related primary and secondary sources determines that despite the limitations of technology during the nineteenth century, social documentaries were produced long before they were part of the genres of photography and film. By focusing on the work of Danish photographer Jacob Riis and tracing the emergence of the film medium through time, this thesis demonstrates a strong connection between documentary film and …

Exact Controllability Of The Lazer-Mckenna Suspension Bridge Equation, Lanxuan Yu

UNLV Theses, Dissertations, Professional Papers, and Capstones

It is well known that suspension bridges may display certain oscillations under external aerodynamic forces. Since the collapse of the Tacoma Narrows suspension bridge in 1940, suspension bridge models have been studied by many researchers. Based upon the fundamental nonlinearity in suspension bridges that the stays connecting the supporting cables and the roadbed resist expansion, but do not resist compression, new models describing oscillations in suspension bridges have been developed by Lazer and McKenna [Lazer and McKenna (1990)]. Except for a paper by Leiva [Leiva (2005)], there have been very few work on controls of the Lazer-McKenna suspension bridge models …

Jack Kerouac's Artistic Apprenticeship And The Discovery Of His Authentic Voice, Nathaniel Botsis

UNLV Theses, Dissertations, Professional Papers, and Capstones

Few novels so clearly dramatize an artist's discovery of his authentic voice as does Kerouac's On the Road. The publication of the writing that Kerouac did before On the Road, and particularly the writing he did before The Town and the City, offers almost unprecedented opportunity to study his artistic apprenticeship and trace his development as an artist. To study Kerouac's apprenticeship is to witness him learning how to liberate himself in order to be that which he would become. In addition to shedding light on this unexamined aspect of Kerouac's career, I hope this study might inspire similar breakthroughs …

No Prejudice Here: Racism, Resistance, And The Struggle For Equality In Denver, 1947-1994, Summer Marie Cherland

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study chronicles a story of civil rights that has been left untold until now. Recent scholarship contributing to the history of the "long civil rights movement" has reframed our understanding of civil rights beyond the years of the late 1950s and early 1960s. In addition, it has also demonstrated that civil rights activity occurred in regions other than the South. However, most work on the long civil rights movement demonstrates that activism among blacks began much earlier than the Brown v. Board Supreme Court case and instead, was a part of a longer freedom struggle that, in many ways, …

Chronic Conditions In Elders In Assisted Living Facilities: Associations With Daily Functioning, Self-Assessed Health, And Depressive Symptoms, Abir K. Bekhet, Jaclene A. Zauszniewski

College of Nursing Faculty Research and Publications

Background

The increasing life expectancy of older adults has prompted an increase in chronic conditions that may interfere with their daily living and impact physical and mental health.

Objectives

This study examined associations between commonly reported chronic conditions, daily functioning, self-assessed health, and depressive symptoms of elders.

Methods/Design

A secondary analysis of existing data from 314 elderly residents of 29 facilities was conducted.

Results

The most frequently reported conditions were arthritis (64%), hypertension (47%), and heart problems (35%). Elders who reported having all three of these most frequently reported conditions differed significantly from those who reported none or one of …