Digital Commons Network^™

School Reform: Where Does Policy Come From? Where Should It Go?, Kim Karman Friel

UNLV Theses, Dissertations, Professional Papers, and Capstones

Policy analysis helps to develop a greater understanding of societal problems and provide possible solutions for elected and non-elected government decision makers. Ultimately, the product of analysis is advice relating to public decisions and informed by social values. In light of the pressures placed on education by policy-makers concerning implementation of educational reform there are surprisingly few studies concerning the changing role of the federal government from a historical perspective. Looking at the past, with the present in mind, reminds us that the current shape of education was not inevitable.

This qualitative dissertation study analyzes the evolution of the intentions …

Characterization Of Beryllium As A Novel Agent To Study Cell Cycle Arrest And Cellular Senescence, Priyatham Gorjala

UNLV Theses, Dissertations, Professional Papers, and Capstones

Cancer cells evade senescence, apoptosis, and other constraints on proliferation, often via mutation of the p53 tumor suppressor gene (TP53). Normal human lung fibroblasts have been shown to enter premature senescence upon exposure to beryllium. In these cells, BeSO₄ stabilizes p53 protein, increases p21 gene expression, induces senescence-associated β-galactosidase activity and causes cell proliferation arrest. In the present study, we have investigated whether BeSO₄ is able to induce similar effects in cancer cells that have wildtype p53. We have demonstrated that beryllium salt at low concentration can induce molecular changes in the p53 signaling pathway leading to cell …

Community Perspectives On Black Parent Engagement In West Las Vegas Before And After Desegregation: A Case Study, Tonia Faye Holmes-Sutton

UNLV Theses, Dissertations, Professional Papers, and Capstones

According to research on parent engagement in K-12 schools, disconnects often exist between parent involvement as defined by school leaders and the African American families and communities they serve (Delgado-Gaitan, 1991; Tillman, 2009). Unfortunately, these competing definitions and conceptions of parent involvement often result in school leaders and administrators perceiving that Black students do not achieve as well as their White peers because Black parents are not involved or engaged in the education of their children (Cooper, 2010; Cooper, 2009; Fields-Smith, 2005). This perception undermines the development of positive home-school relations between school leaders, educators, and Black parents, and in …

The Motivating Language Of Principals: A Sequential Transformative Strategy, William Tobias Holmes

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study implemented a Sequential Transformative Mixed Methods design with teachers (as recipients) and principals (to give voice) in the examination of principal talk in two different school accountability contexts (Continuously Improving and Continuously Zigzag) using the conceptual framework of Motivating Language Theory. In phase one, teachers were surveyed using the ML Toolbox. The survey was administered using the Dillman Tailored Design Method, and the return rate was 67.48%. The major findings that emerged were: (a) significant differences in Motivating Language (ML), Direction-Giving Language (DG), Empathetic Language (E), and Communication Competence (CC) variables between the Continuously Improving and Zigzag Clusters; …

Anti-Germinants As A New Strategy To Prevent Clostridium Difficile Infections, Amber Janece Howerton

UNLV Theses, Dissertations, Professional Papers, and Capstones

Clostridium difficileinfections (CDI) have emerged as a leading cause of hospital-associated complications. CDI is the major cause of antibiotic-related cases of diarrhea and nearly all cases of pseudomembranous colitis. The infective form of C. difficileis the spore, a dormant and hardy structure that forms under stress. Germination of C. difficile spores into toxin producing bacteria in the GI tract of susceptible patients is the first step in CDI establishment. Patient susceptibility occurs with a disruption of the natural gut microbiota by broad-spectrum antibiotics. Antibiotic treatments usually resolve CDI but refractory cases are on the rise. Of great concern is the …

An Estimate Of Groundwater Recharge In The Nabogo River Basin, Ghana Using Water Table Fluctuation Method And Chloride Mass Balance, Melanie Lynn Krautstrunk

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Cambrian-Precambrian fractured sandstone aquifer in the Nabogo River Basin in the Sahelian Northern Region in Ghana is one of the most important sources for fresh water supply for the local rural communities there. Recent population growth and commercial agricultural interests in this region could have an impact on this critical water resource. Groundwater recharge estimates are determined in this study using the Water Table Fluctuation Method and Chloride Mass Balance and can be applied to future sustainability studies of the region's water resources. Recharge estimates of the Water Table Fluctuation Method are in a range of 10-143 mm/yr or …

Exploring Reasons Why Men And Women Refrain From Sex Despite Desire, Alessandra Lanti

UNLV Theses, Dissertations, Professional Papers, and Capstones

Sexual behavior has been found to be an unreliable referent for sexual desire. Numerous studies have found that sexual activity is motivated by a range of non-desire related factors, from the promotion of intimacy to the seeking of new experiences. Sexual desire may also be an unreliable predictor of sexual activity. There is a dearth of research, however, on the reasons why individuals choose not to have sex despite the presence of desire for a willing partner. The main aim of this study is to qualitatively investigate the reasons why people refrain from sex when they feel desire for a …

Dreissena Rostiformis Bugensis: Desiccation Of Adult Quagga Mussels Found In Lake Mead As A Preventive Measure Against Overland Dispersal In The Western United States, Matthew Kappel

UNLV Theses, Dissertations, Professional Papers, and Capstones

The expansion of civilization across all borders of the world has proven to affect major components of ecosystems. Since the introduction and establishment of the aquatic invasive species (AIS),Dreissena rostiformis bugensis, commonly known as the quagga mussel, into the United States there has been an extensive amount of time and money spent on controlling and preventing their expansion across the United States. The quagga mussel is of major concern because of its ability to disrupt the ecological communities in previously non-infested bodies of water, which may cause a loss in biodiversity and effect environmental health. The quagga mussel has spread …

Novel Production Techniques Of Radioisotopes Using Electron Accelerators, Daniel Robert Lowe

UNLV Theses, Dissertations, Professional Papers, and Capstones

Non-traditional radioisotope production techniques using a compact, high power linear electron accelerator have been demonstrated and characterized for the production of 18F, 47Sc, 147Pm, and 99mTc from a variety of target candidates. These isotopes are used extensively in the medical field as diagnostic and therapy radioisotopes, as well as the space industry as RTG's. Primary focus was placed on 99mTc as it constitutes approximately 80% of all diagnostic procedures in the medical community that use radioactive tracers. It was also the prime focus due to recent events at the Chalk River nuclear reactor, which caused global shortages of this isotope …

Archiving Joyce & Joyce's Archive: Ulysses, Finnegans Wake, And Copyright, Jessica Michelle Lucero

UNLV Theses, Dissertations, Professional Papers, and Capstones

"Archiving Joyce and Joyce's Archive: Ulysses, Finnegans Wake, and Copyright" investigates the ways in which James Joyce's Ulysses and Finnegans Wake incorporate archival institutions and archival modes such as gossip into its composition. For example, this work explores how both works, at times, present institutions such as the National Library of Ireland, and, at other times, enact archiving in its collection and preservation of historical personages relevant to Irish literature and history. Additionally, Joyce was involved in the construction of his own archive, and thereby becomes the curator of his own history as well as that of Ireland.

Importantly, this …

A Case Study Using Principal-Agent Theory To Explore How A Public, Four Year University Interacts With A System Office, Annie Macias

UNLV Theses, Dissertations, Professional Papers, and Capstones

The focus of this research was to examine the funding relationship between a single public institution of higher education and its accompanying system office. Such a study is important in order to obtain insight into the relationship between a System Office and an institution, and thus how institutions carry out their fiscal responsibilities, not directly to the state but to the System Office they serve. The study provides insight into how the System Office communicates and transacts with an institution regarding financial allocations. Also important is whether that institution receives effective communication and whether the institution's perceived expectations are as …

Post Processing Of Optically Recognized Text Using First Order Hidden Markov Model, Spandana Malreddy

UNLV Theses, Dissertations, Professional Papers, and Capstones

In this thesis, we report on our design and implementation of a post processing system for Optically Recognized text. The system is based on first order Hidden Markov Model (HMM). The Maximum Likelihood algorithm is used to train the system with over 150 thousand characters. The system is also tested on a file containing 5688 characters. The percentage of errors detected and corrected is 11.76% with a recall of 10.16% and precision of 100%

Hardware Implementation Of Processor Allocator For Mesh Connected Chip Multiprocessors, Rana Sangram Reddy Marri

UNLV Theses, Dissertations, Professional Papers, and Capstones

The advancements in the semiconductor process technology and the current demand for highly parallel computing has led to the advent of Chip Multiprocessors (CMPs). CMP is the integration of two or more independent processor cores, which can read and execute program instructions, on to a single integrated circuit die. CMPs are the main computing platforms for research and development in parallel and high performance computing environments. They offer minimum inter-core communication latencies as the processor cores are present on a single chip.

The Operating System (OS) plays a key role in using a CMP effectively. The OS should support a …

Antecedent Influences: Factors That Guide African American Men To The Field Of Education, Michael James Maxwell

UNLV Theses, Dissertations, Professional Papers, and Capstones

Over the last four decades black men have become increasingly underrepresented in all aspects of the teaching profession. Identifying the factors that influence African American men to enter or avoid the education field can help increase the recruitment of black men into the field of education. The dearth of black men in our classrooms can be reduced by collecting data as to the reasons that influence their decisions about the education field.

This qualitative study examined the experiences and perspectives of African American men serving as classroom teachers to identify common factors that may influence African Americans, in general, to …

Response To Intervention Data In Grade Retention Decisions: How Is It Used?, Cheryl Anne Mayfield

UNLV Theses, Dissertations, Professional Papers, and Capstones

For over 100 years, retention has been an intervention used with students who are not performing at expected levels. Despite the lack of evidence that retention is an effective means of improving academic outcomes, retention continues to be used today. Response to Intervention (RTI) is a strategy to provide support to struggling students in an effort to increase their academic performance, with the caveat that students who do not respond to interventions are candidates for special education evaluation. With RTI, data are generated. The impetus for the creation of the RTI model was its use for identifying students who may …

A Study Of District Leadership Practices In The Principal Professional Learning Community, Danielle Grace Miller

UNLV Theses, Dissertations, Professional Papers, and Capstones

This qualitative study was implemented in an urban, Title I school district in the southern portion of the United States. The problem the study addressed was that the various phenomena pertaining to the implementation of the principal professional learning community (PPLC), as perceived by the 14 participating elementary school principals, had not been examined to determine their influence. Qualitative data were acquired from the principals through personal interviews.

Findings suggested that, with the regular opportunities for principals to share ideas and thoughts with their colleagues, PPLC participants perceived improved performance involving (a) the attributes of high skillfulness and high participation …

Facing The Music: Student Power Relations In Student Leadership Within High School Band Programs, Curtis James Melton

UNLV Theses, Dissertations, Professional Papers, and Capstones

Bullying among children in our nation's schools has gripped the nation's collective interest, leading to grief, anger, and inquisition. Recent headlines suggest that the public is asking why bullying is taking place among our youth, so much so that it is costing children their lives. Recent teen deaths have swept the airwaves and headlines in the last two to three years, and it appears to be a problem that is starting to become a national epidemic.

The purpose of this study was to examine bullying within student-sanctioned programs within a school, specifically, whether or not student leaders in those programs …

Evaluating The Impact Of A New Casino Loyalty Program On Gaming Volume, Ji Hye Min

UNLV Theses, Dissertations, Professional Papers, and Capstones

Using two years secondary data gathered from a Las Vegas hotel and casino, the effectiveness of a new casino loyalty program is examined on both daily slot coin-in and table game drop. Based on a theoretical model advanced to estimate the effects of a new loyalty program, simultaneous multiple regression analysis with Autoregressive Moving Average (ARMA) terms is used to analyze the data. The results indicate that the loyalty variable significantly increases slot coin-in at a rate of $302,455 per day, while table game drop is not significantly affected by the introduction of the new loyalty program. The coin-in increase …

A Forensic Identification Utility To Create Facial Approximations Using Cone-Beam Computed Tomography Of 100 Hispanic Females: A Pilot Study, Behzad Nejat

UNLV Theses, Dissertations, Professional Papers, and Capstones

Introduction:Estimation of facial soft tissue appearance from human skeletal remains is often necessary in forensic identification. This process has been referred to as facial reconstruction or facial approximation and is a branch of forensic facial anthropology. Original methods for facial approximation originated in nineteenth century Europe and consisted of artists shaping clay over skull models using average soft tissue depths measured in cadavers. The last two decades have introduced numerous computerized techniques that have digitized this process while attempting to accurately and objectively define the relationship between a skull and its overlying soft tissue. This pilot study describes a method …

The Impact Of Advanced Wastewater Treatment Technologies And Wastewater Strength On The Energy Consumption Of Large Wastewater Treatment Plants, Timothy Stephen Newell

UNLV Theses, Dissertations, Professional Papers, and Capstones

Wastewater treatment is an energy intensive process often requiring the use of advanced treatment technologies. Stricter effluent standards have resulted in an increase in the number of wastewater treatment plants (WWTPs) with advanced treatment over time. Accordingly, associated energy consumption has also increased. Concerns about lowering operating costs for WWTPs and reducing associated greenhouse gas generation present an incentive to investigate energy use in WWTPs. This research investigated the impact of wastewater strength and the introduction of advanced treatment technologies, to replace traditional technologies on energy use to treat wastewater in WWTPs. Major unit processes were designed for a 100 …

Safety First -In Search Of Justice -School & Law Enforcement Agency Partnerships, Michael Anthony Pickett

UNLV Theses, Dissertations, Professional Papers, and Capstones

ABSTRACT

Educational problems are many and varied. At-risk students, achievement gaps and poor student outcomes are hot topics that beg for improvement in equity across the board and stand in the way of achieving excellence. These educative, albeit, social justice issues are not new, but rather, are old problems revisited (Kaestle, 1983; Morrison, 2003). Additionally, the issue of violence in schools is also recognized as not only a social justice problem but also a public health problem (Mercy & O'Carroll, 1988) and is perhaps the most pressing societal issue related to children and youth today. "Safe schools are the concern …

Recycling And Reuse Of Radioactive Materials, Thomas Joseph O'Dou

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Radiochemistry Program at the University of Nevada, Las Vegas (UNLV) has a Radiation Protection Program that was designed to provide students with the ability to safely work with radioactive materials in quantities that are not available in other academic environments. Requirements for continuous training and supervision make this unique program capable of turning out graduates that have an understanding of contamination and dose control techniques that complement their knowledge of the elements that they work with. The Program has also adopted a radionuclide recovery and reuse program that has provided materials from other universities, government agencies, and private companies …

2000 Year Moisture Source Record From A Central Nevada Speleothem, Paul Pribyl

UNLV Theses, Dissertations, Professional Papers, and Capstones

The goal of this study was to determine the moisture source of winter precipitation in the central Great Basin for the past 2000 years, and to elucidate the role of Pacific Ocean and North American climate variability modes in driving observed droughts of the region around the Medieval Climatic Anomaly (MCA, ~900-1300 CE). Here a high resolution (~2-4 year) precisely dated moisture source reconstruction is presented from the δ18O values of speleothem LC-1 collected from Leviathan Cave in central Nevada, which reveals significant δ18O variability. I attribute the δ18O variability to changes in winter-season moisture circulation over the past 2000 …

Image Segmentation For Quantification Of Air-Water Interface In Micro-Ct Soil Images, Kranthi Kumar Potteti

UNLV Theses, Dissertations, Professional Papers, and Capstones

Soils are complex environments comprising various biological (roots, water, air etc) and physical constituents (minerals, aggregates, etc). Synchrotron radiation based X-ray microtomography (XMT) is widely used in extracting qualitative and quantitative information regarding spatial distribution of biological and physical soil constituents. Segmentation of these micro-CT soil images is of interest to geologists, hydrologists, civil and petroleum engineers and soil scientists. In this present work, we study and implement segmentation algorithms for microhydrology studies, specifically for soil water conductivity. Three well-known image segmentation algorithms are studied for evaluating their performance for the task. We demonstrate the problems and ways to segment …

The Abundance And Distribution Pattern Of Quagga Mussels In The Las Vegas Bay Of Lake Mead, Nevada And Potential Correlation With Environmental Parameters, Scott Rainville

UNLV Theses, Dissertations, Professional Papers, and Capstones

The non-native quagga mussel [Dreissena bugensis (Andrusov, 1897)] was initially discovered in Boulder Basin of Lake Mead, Nevada-Arizona on January 6, 2007. This occurrence marked the first biological invasion of dreissenid mussels in the Western U.S., following a significant North American range expansion of invasive quagga mussels from populations that invaded and colonized the Great Lakes Region in the Northeastern U.S. during 1991. This nonindigenous mollusk species quickly spread from Boulder Basin and became established throughout the entire reservoir by the end of 2007, with the exception of the inner Las Vegas Bay. There was an apparent absence of settled …

A Critical Edition Of Gustave Vogt's 4eme Solo De Concert, Mark Runkles

UNLV Theses, Dissertations, Professional Papers, and Capstones

As oboe professeur titulaire at the Paris Conservatory from 1816-53, Gustave Vogt established his importance as a pedagogue by teaching many leading nineteenth century European oboists, and his influence can be traced to numerous living oboists. Additionally, Vogt played a seminal role in developing a virtuosic Romantic oboe style that paralleled the virtuosic styles developed for the more prevalent Romantic solo instruments, the piano and violin. His music is rarely played today, and Vogt remains a largely unknown figure even within the oboe community. The purpose of this study is to develop a critical edition of Gustave Vogt's 4ème Solo …

The Non-Gaming Business Of The Gaming Industry: Evaluating The Contribution Of Non-Gaming Amenities At A Casino-Resort Property, Elena Shampaner-Ghiassi

UNLV Theses, Dissertations, Professional Papers, and Capstones

Previous studies on this topic show that all non-gaming amenities at a casino-resort property generate revenue in two ways. First, an amenity directly contributes to companies' overall profits when consumers spend on a particular amenity more than it costs the company to provide that amenity (Roehl, 2006). Second, these amenities can make an indirect contribution defined as the profit impact of an amenity on another profit center at the property (Dandurand & Ralenkotter, 1985); however, this contribution does not show directly on the amenity's financial statements (Roehl, 1996).

The purpose of this paper is to estimate the indirect gaming (both …

Credentialing Success In Respiratory Therapy Education: Revisiting Bourdieu's Concepts Of Field And Capital, Karen Lightbody Shaw

UNLV Theses, Dissertations, Professional Papers, and Capstones

The field of Respiratory Therapy (RT) is expected to experience a workforce shortfall over the next decade. The numbers of both program applicants and graduates have declined in recent years, necessitating strategies to improve board exam pass rates for future graduates. In response to the pending employment crisis, the Commission on Accreditation for Respiratory Care has published Programmatic Outcomes Data detailing individual program statistics. A theoretical framework adapted from Pierre Bourdieu's Concepts of Field and Capital was proposed to explain a possible re-stratification of RT programs. It states, in part, that a modification of position-takings within the RT educational field …

Csa Survivors: What Heals And What Hurts In A Couple Relationship, Laura S. Smedley

UNLV Theses, Dissertations, Professional Papers, and Capstones

Childhood sexual abuse (CSA) is a significant trauma that affects a person's self-concept and the ability to form healthy intimate relationships later in adulthood. Approximately 20% of adults who experience childhood sexual abuse go on to evidence serious psychopathology in adulthood (Harway & Faulk, 2005). Besides individual disturbances, CSA survivors struggle with many relational difficulties. These difficulties are usually most pronounced among their intimate partners (Reid, et al., 1995). According to attachment theory, attachment injuries are best healed in the context of a healthy, intimate relationship (Kochka & Carolan, 2002) (MacIntosh & Johnson, 2008). Conversely, the couple relationship may be …

Couples' Process Of Healing From Infidelity While In Therapy, Jordan Mark Staples

UNLV Theses, Dissertations, Professional Papers, and Capstones

Infidelity is one of the most common presenting problems for couples and marriage therapists. It is widely acknowledged to be a destructive phenomenon for a couple's relationship and is one of the most difficult presenting problems to treat. Treatment models for infidelity vary and have little empirical testing. The purpose of the proposed study was to investigate the client's perspective of the process for healing from infidelity. Additionally, the proposed study looked to qualitatively assess and amalgamate participants' experience of the healing process for infidelity. Themes and relationships among these themes were identified using open, axial, and selective coding processes. …