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Development Of A Gis-Based Safety Analysis System, Vidhya Kumaresan
Development Of A Gis-Based Safety Analysis System, Vidhya Kumaresan
UNLV Retrospective Theses & Dissertations
The objective of this study is to develop a safety analysis system that integrates crash data and roadway related information. This system is developed in a Geographic Information System (GIS) environment. It includes customized user interfaces to support queries to analyze data and to display results either in graphical or tabular formats. The system also affords the capabilities to export such results. The system permits analyses to be performed either at individual locations such as intersections, or for roadway segments. These analyses are based on data fields included in the crash database. The queries may be based on individual attributes …
The Conceptualization And Development Of Specifications For A Doctoral Program In Security Studies: A Delphi Study, Barent Nelson Mccool
The Conceptualization And Development Of Specifications For A Doctoral Program In Security Studies: A Delphi Study, Barent Nelson Mccool
UNLV Retrospective Theses & Dissertations
In 1994 there were only four formal "Emergency Management/Security" college degree programs being offered in academic America, of which only one was offered at the baccalaureate level, the others being certificate programs (Federal Emergency Management Agency, 2007). This study focused on the following research questions. (1) Is there a current need for a doctoral program in security studies? (2) If so, how should such a program be structured academically? (3) If so, should such a program be offered as a PhD, EdD or an Executive Doctoral degree program?;A review of the literature indicated that a gap exists between current programs …
The Development And Evaluation Of A Child Maltreatment Reporting Training Program For Mandated Mental Health Professionals, Krisann Marie Alvarez
The Development And Evaluation Of A Child Maltreatment Reporting Training Program For Mandated Mental Health Professionals, Krisann Marie Alvarez
UNLV Retrospective Theses & Dissertations
Despite a legal mandate to report suspected child maltreatment, the literature has consistently reported a failure by mandated professionals to report suspected maltreatment. Lack of knowledge regarding child maltreatment, reporting requirements and possible consequences of reporting have been cited as impediments to reporting. Previous research has recommended the development of training programs to address these hindrances. However, empirically validated training programs specific to the reporting of child maltreatment in mental health professionals have yet to be developed. Therefore, this study is the first to examine the efficacy of a child maltreatment reporting training program which addresses knowledge of child maltreatment …
Development And Empirical Analysis Of A Self-Advocacy Readiness Scale With A University Sample, Katrina R Harris
Development And Empirical Analysis Of A Self-Advocacy Readiness Scale With A University Sample, Katrina R Harris
UNLV Retrospective Theses & Dissertations
Counseling as a profession has been criticized for disregarding the social and political issues facing clients and students (Bemak & Chung, 2005). Many students in urban environments are faced with difficulties such as poverty, racism, and oppression that impact their emotional, social, and academic growth (Bemak & Siroskey-Sabdo, 2005). Further, students in urban schools feel they have little power in a school culture dominated by the majority group in which differences in culture, class and language are often perceived as deficits (Bryan, 2005); The No Child Left Behind Act calls for increasing achievement rates for all students and bridging the …
The Development Of A Replicable Model For Implementation Of A High School Minimum Competency Program, Nils Golden Bayles
The Development Of A Replicable Model For Implementation Of A High School Minimum Competency Program, Nils Golden Bayles
UNLV Retrospective Theses & Dissertations
Problem. A twenty year decline on college entrance examination test scores achieved by high school students and two massive national studies of education in the United States, the Coleman Report and the National Assessment of Educational Progress, highlighted a nationwide concern about student.
The Development Of A Consensus Management By Objectives Model And A Comparison To The Clark County School District Management And Accountability System For Secondary Schools, Agustin A Orci
UNLV Retrospective Theses & Dissertations
The purpose of the study was to examine selected business and education management by objectives (MBO) models and identify the common elements. These elements resulted in a consensus MBO model which was compared to determine agreement with the Clark County School District's Management and Accountability System for Secondary Schools. Educational accountability, the theoretical bases for MBO and MBO models in business and education were treated in the review of the literature. Graphic models developed in the study included the Clark County District's Management and Accountability System for Secondary Schools and a consensus MBO model; A management process based on the …
Development Of Passenger Car Equivalents For Freeway Merging Sections, Amanpreet Singh Ahuja
Development Of Passenger Car Equivalents For Freeway Merging Sections, Amanpreet Singh Ahuja
UNLV Retrospective Theses & Dissertations
The Highway capacity manual (HCM, 2000) uses the Passenger Car Equivalents (PCE) to estimate the impact of trucks on freeways. PCE values for trucks recommended by HCM 2000 for level terrain are same under different truck percentages and different freeway conditions such as merging, diverging, weaving section etc. Several studies have shown that the PCE values vary for different traffic conditions such as for weaving, over-saturated conditions, etc. The objective of this thesis is to develop the PCE values for freeway merging sections using simulation software CORSIM. The equal density methodology is used to compute the PCE values. For this …
Development And Validation Of The Facial Affect Learning And Memory Test (Falmt) And Facial Identification Of Affect Task (Fiat), Christina Marie Armstrong
Development And Validation Of The Facial Affect Learning And Memory Test (Falmt) And Facial Identification Of Affect Task (Fiat), Christina Marie Armstrong
UNLV Retrospective Theses & Dissertations
The neurocognitive assessment of visuospatial memory has begun to receive attention and has been recognized as being important in the understanding of overall memory processing. Additionally, there has been an increased emphasis on emotion processing, particularly affect discrimination and attention bias. However, little information is currently available on learning and memory for emotional information. Because emotion is expressed to a large extent through nonverbal means, a nonverbal test of emotion learning would be valuable, although no such test currently exists. The aim of the current study was to establish normative performance characteristics, convergent and divergent validity for two newly developed …
The Relationship Between Project Characteristics And The Expert Estimation Of Software Development And Maintenance, John Farrish
The Relationship Between Project Characteristics And The Expert Estimation Of Software Development And Maintenance, John Farrish
UNLV Retrospective Theses & Dissertations
Accurately estimating the amount of time and effort required to complete a software development or maintenance project has proven problematic for business. A wealth of literature exists exploring each of the methods for estimating software development, but very little is devoted to understanding how project characteristics relate to estimation accuracy. This research examines expert estimation, the most widely used estimation technique, to determine the relationship between software project characteristics and estimation accuracy. Implications of the findings for research and practice are discussed.
The Effect Of Temperature On Development And Behavior Of Relict Leopard Frog Tadpoles (Rana Onca), Jeffrey Abraham Goldstein
The Effect Of Temperature On Development And Behavior Of Relict Leopard Frog Tadpoles (Rana Onca), Jeffrey Abraham Goldstein
UNLV Retrospective Theses & Dissertations
Relict Leopard frogs (Rana onca) are found in thermal springs with water temperatures in excess of 30°C at the source but it's unknown whether tadpoles require reintroduction sites with specific thermal conditions for development. Tadpole survivorship at 20, 25 and 30°C was 84, 93.8, and 66%, respectively, while none survived at 35°C. Time to metamorphosis was significantly shorter for 25°C acclimation group (62+/-8 days) followed by the 30° (106+/-51 days) and 20°C (260+/-47 days) acclimation groups. Development was arrested in the 15°C acclimated group and survivorship declined to 63.8% after 191 days. However, 80% of the surviving larvae completed metamorphosis …
Characteristics And Success Of Information Systems Development Efforts In Public School Systems, Kim R Syverson
Characteristics And Success Of Information Systems Development Efforts In Public School Systems, Kim R Syverson
UNLV Retrospective Theses & Dissertations
This thesis discusses the differences between traditional businesses and schools regarding information system project management, by analyzing several project characteristics and how they affect educational end-user perceptions of system successes. While many other businesses have mastered the project management processes, school districts are just now beginning to see that such processes and techniques are even necessary; Here we use survey data from school teachers and administrators, along with two case studies to investigate factors that impact the success of information system development projects among Nevada public schools. The results highlight areas that are either currently lacking, or need to be …
Development Of A Flood Forecasting Model For Flamingo Tropicana Watershed In The Las Vegas Valley, Satya Prakash Chataut
Development Of A Flood Forecasting Model For Flamingo Tropicana Watershed In The Las Vegas Valley, Satya Prakash Chataut
UNLV Retrospective Theses & Dissertations
Floods are among the most frequent natural phenomenon that occur due to excessive precipitation. Accurate and current forecasting of floods is necessary to avoid social and economic losses. Forecasting floods in an event of intense rain allows the concerned agencies to adopt appropriate measures such as warnings and evacuations and to initiate corrective and remedial efforts before disaster strikes (Chapman and Canaan, 2001); Las Vegas has experienced rapid population growth since the 1990s. This has brought large-scale increase in impervious land surface due to the expansion of residential, commercial, and industrial area in the valley. The increase in impervious area …
Development Of In-Cylinder Injection For A Hydrogen-Fueled Internal Combustion Engine, Ronald L Fifield
Development Of In-Cylinder Injection For A Hydrogen-Fueled Internal Combustion Engine, Ronald L Fifield
UNLV Retrospective Theses & Dissertations
Traditional means for converting an engine to operate on hydrogen fuel incorporates port injection. The typical method for controlling emissions on a port injection engine is to operate the engine lean (typical AFR of 70:1) and/or incorporate an EGR system. The result of utilizing these methods is an appreciable reduction in power output. In-cylinder injection of an internal combustion engine provides a reliable method for delivering hydrogen fuel whereby fuel efficiency, power output and emissions levels are improved. Injection of hydrogen directly into the combustion chamber allows control of various factors such as burn rate and combustion timing which influence …
Development Of A Safety Analysis And An Intersection Infrastructure System, Ancila V Kaiparambil
Development Of A Safety Analysis And An Intersection Infrastructure System, Ancila V Kaiparambil
UNLV Retrospective Theses & Dissertations
GIS and GPS technologies have found immense applications in the field of transportation engineering. Different features related to transportation safety are inventoried using these technologies. The databases so created serve as main source for safety analyses, decision making and reporting. Many different analyses tools are available to assist engineers, planners and policy makers in the process of improving transportation safety. GIS-based analyses tools provide tabular and graphic display, thereby expediting the analyses process and improving the spatial understanDing The advantages of such tools increase if they can be provided on the World Wide Web. One such software system that offers …
Development And Testing Of An Advanced Photovoltaic Receiver, Marc A Newmarker
Development And Testing Of An Advanced Photovoltaic Receiver, Marc A Newmarker
UNLV Retrospective Theses & Dissertations
In August of 2004, the SAIC solar concentrator located at UNLV was retrofitted with a 24 module photovoltaic aperture in hopes of producing a new type of solar electric concentrator. Alter the initial solar testing began, it became very apparent that the receiver design did not supply adequate cooling of the silicone cells, leading to module deformation and eventual failure. Through investigative studies of the failure and the possible solutions to the problem put forth at NREL and UNLV, a second phase array of mechanically sealed photovoltaic modules was constructed and tested. With a new methodology implemented in phase two, …
Presidential Transitions During Capital Campaigns: Perspectives Of Chief Development Officers, Kimberly Kay Nehls
Presidential Transitions During Capital Campaigns: Perspectives Of Chief Development Officers, Kimberly Kay Nehls
UNLV Retrospective Theses & Dissertations
In the past few decades, capital campaigns at institutions of higher education have increased in duration, while collegiate presidential tenures have been doing just the opposite. Turnover in the top post was frequent, even during major fundraising campaigns. Prior to this study, presidential transitions during campaigns had not been previously analyzed. Therefore, the objective of this exploratory study was to better understand presidential transitions during capital campaigns from the perspective of the chief development officer (CDO) who maintained continuity. Nine CDOs who experienced presidential transitions during campaigns were interviewed to better understand their experience. The institutions represented were Florida State …
Development Of Seat Shock Isolation Systems, Erik Wolf
Development Of Seat Shock Isolation Systems, Erik Wolf
UNLV Retrospective Theses & Dissertations
A numerical model has been created to predict the behavior of seat shock isolation systems exposed to mine blast loaDing The model is a two dimensional, five degree-of-freedom, rigid body, mass-spring-damper approximation of the seat system and human occupant. The outputs of the model are the positions, velocities, and accelerations of the system masses, the forces of the connecting elements, such as the seat cushion force, the load limiter force, the spinal force, and the Dynamic Response Index (DRI) based on the pelvic z-axis acceleration. The model has been calibrated with drop tower test data collected by the Army Research …
A Model Of The Interplay Of Culture And Immigration Stress In The Development And Maintenance Of Alcohol-Related Disorders In Hispanic/Latino Immigrants, Marilyn J Strada
A Model Of The Interplay Of Culture And Immigration Stress In The Development And Maintenance Of Alcohol-Related Disorders In Hispanic/Latino Immigrants, Marilyn J Strada
UNLV Retrospective Theses & Dissertations
The Hispanic/Latino population represents the largest ethnic minority group in the United States, with immigrants comprising a substantial portion of this population. For both U.S.-born and immigrant Hispanic/Latinos, alcohol abuse and dependence is of particular concern given their reported high prevalence rates, the severe alcohol-related consequences that they experience, and the various barriers to obtain treatment that they encounter. In comparison to members of other ethnic groups, Hispanics/Latinos have the lowest rates of perceived need for treatment, the lowest past and current rates of participation in treatment and the highest dropout rates after attending just one counseling session. Although there …
Exploring Relationships Between Configurations Of Technology Use And Professional Development Among Ces Teachers, Andrew Hyrum Mcarthur
Exploring Relationships Between Configurations Of Technology Use And Professional Development Among Ces Teachers, Andrew Hyrum Mcarthur
UNLV Retrospective Theses & Dissertations
The purpose of this study was to determine the effect recent technology integration was having on teaching in the Church Education System (CES). Specifically, this study sought to identify (a) different configurations of technology use; (b) different forms and processes of support; and (c) examine the relationships between the two. Education change theory, particularly the Concerns-Based Adoption Model, was used to guide the research. An Innovation Configuration (IC) Map was developed and used to collect data. Three configurations of use were identified: Independent---teachers who proactively learned technology on their own and implement it well; Interdependent---teachers who are fairly new to …
Vigilante Justice And Civic Development In 1850s San Francisco, Nancy S Papin
Vigilante Justice And Civic Development In 1850s San Francisco, Nancy S Papin
UNLV Retrospective Theses & Dissertations
The years between the American Revolution and the Civil War witnessed the prevalence of public disorder and social violence, especially in the expanding American West. In many instances, crowds took the law into their own hands and dealt summary vengeance on suspected criminals. This study delves into the political and legal climate of San Francisco in the 1850s to examine perhaps the most famous episodes of vigilantism in antebellum America; the San Francisco Vigilante Committees of 1851 and 1856. Through a careful contextualization and comparison of these committees, the thesis argues that the leaders of the respective committees believed that …
Parental Substance Abuse And Child Neglect: Development Of A Treatment Manual, Valeria I Romero
Parental Substance Abuse And Child Neglect: Development Of A Treatment Manual, Valeria I Romero
UNLV Retrospective Theses & Dissertations
The maltreatment of children is a devastating social problem in the United States. Many researchers and child welfare workers believe the recent increase in child neglect is directly correlated to an increase in parental substance abuse. There is a strong relationship between child neglect and parental substance abuse, however there are limited treatments that address both issues simultaneously. The present study developed a Family Behavior Therapy treatment manual and preliminarily evaluated the credibility and client satisfaction of the interventions with a family referred by Clark County Family Services. The manual is based on existing published manuals, one of which is …
Macau Tourism Development In Cooperation With Its Neighbors, Qin Yu
Macau Tourism Development In Cooperation With Its Neighbors, Qin Yu
UNLV Retrospective Theses & Dissertations
This study assesses the importance of cooperative tourism development in the Hong Kong, Macau and Zhuhai region. In particular, it analyzes the necessity and strategies for Macau to develop its casino gaming-centered tourism in collaboration with its two neighbor cities. Data were collected via face-to-face and email interviews with open-ended questions. Educators, executives, and government officials in the tourism industries in Hong Kong, Macau and Zhuhai were invited to participate in the interviews via a convenience sampling process. The results indicate that developing tourism in a closely cooperative manner is highly desirable for the three destinations. Especially, Macau's collaborations with …
Development Of An Integrated Process Simulation System Model For Spent Fuel Treatment Facility (Sftf) Design, Matthew S Hodges
Development Of An Integrated Process Simulation System Model For Spent Fuel Treatment Facility (Sftf) Design, Matthew S Hodges
UNLV Retrospective Theses & Dissertations
Major issues concerning nuclear waste storage at Yucca Mountain are that of safety and long term disposal. Approximately one percent of the content of spent nuclear fuel is that which is responsible for nearly all the long-term associated health risks. The removal and transmutation of this content will render the toxicity of the remaining waste to that of natural uranium within a few hundred years. The research contained in this thesis details several simulations that are involved in the overall removal process. The first objective was to test the feasibility of the design of a distillation column that will separate …
The Development Of Children's Orthographic Knowledge: A Microgenetic Perspective, Ann C Sharp
The Development Of Children's Orthographic Knowledge: A Microgenetic Perspective, Ann C Sharp
UNLV Retrospective Theses & Dissertations
Literacy scholars traditionally described spelling development as a stage-like progression of increasing orthographic understanding measured by orthographic feature errors children used but confused (Henderson, 1980; Ehri, 1992). Overlapping Wave theorists defined spelling development as a series of adaptive choices between sophisticated and unsophisticated spelling strategies measured by the type and amount of strategies children used (Siegler, 1996). To disentangle discrepancies found between the alternative viewpoints, the current study: replicated and extended a previous investigation that described spelling development as overlapping waves (Riffle-Johnson & Sieger, 1999); investigated differential feedback conditions as a source of spelling growth; and examined correlates between orthographic …
The Principal's Role In Promoting Standards-Based Professional Development, Barbara Jill Presler
The Principal's Role In Promoting Standards-Based Professional Development, Barbara Jill Presler
UNLV Retrospective Theses & Dissertations
The purpose of this study was to describe principals' and teachers' knowledge of recommended professional development practice as defined by The National Staff Development Council (2001). In addition, the study described teachers' and principals' perceptions of professional development practices in their schools; This study was guided by three research questions: (1) how do principals perceive their own behaviors and activities relative to professional development; (2) how do teachers perceive administrator's behavior and actions relative to professional development; and (3) to what extent did principals base the professional development activities and practices within their schools on the National Staff Development Standards?;This …
The Development Of Domain-Specific And Domain-General Metacognitive Monitoring, Brett Douglas Campbell
The Development Of Domain-Specific And Domain-General Metacognitive Monitoring, Brett Douglas Campbell
UNLV Retrospective Theses & Dissertations
Metacognitive monitoring may be a critical element in self-regulated learning. Two types of metacognitive monitoring have been identified: domain-specific and domain-general. Domain-specific metacognitive monitoring occurs when an individual is monitoring content-specific knowledge. Domain-general metacognitive monitoring occurs in situations when content-specific knowledge is not available. Currently no research is available that examines the developmental differences between domain-specific and domain-general metacognitive monitoring in children. This study attempted to address this issue by asking children in first, fourth, and seventh grade to make item-by-item confidence judgments while providing answers in two domain-specific tasks and two domain-general tasks. Two working memory spans tasks were …
The Silver Spring And Blackrock Faults, East-Central Nevada: Kinematics, Timing, And Role Of Low-Angle Normal Faulting In The Development Of Railroad Valley, Tyler R Knudsen
UNLV Retrospective Theses & Dissertations
The structural development of Railroad Valley, a large and economically important Tertiary basin in east-central Nevada, has been the focus of much debate. This study addresses many of the points of controversy through a detailed geologic study of structures in the southwestern White Pine Range; Detailed geologic mapping and construction of cross-sections reveal both low- and high-angle normal faults. The low-angle faults consist of three bedding-parallel faults, two top-to-the-southwest and one top-to-the-south, and two large displacement (>8 km heave) (26,000 ft) top-to-the-west detachments that denude a range-scale Mesozoic fold. Two spatially distinct groups of high-angle normal faults are present: …
Vissim Model Development Of A Mid-Block Pedestrian Crossing Between Signalized Intersections, John Christopher Merrill
Vissim Model Development Of A Mid-Block Pedestrian Crossing Between Signalized Intersections, John Christopher Merrill
UNLV Retrospective Theses & Dissertations
Pedestrian mid-block crossings through arterial roadways have significant impacts on vehicular level of service and safety. Past research has been conducted to simulate these crossings. However, a practical, realistic model and methodology have not been established for analysis and planning of mid-block pedestrian crossings. The objective of this study was to create a practical traffic microsimulation methodology for mid-block pedestrian crossings through a case study using a versatile transportation software package. VISSIM v3.70 was selected because of its ability to model individual vehicle and pedestrian interactions. The developed methodology provided a framework for model development at any pedestrian mid-block crossing …
Development Of An Instrument Designed To Measure Student Perception Of School Connectedness, Nicole Jennifer Smith
Development Of An Instrument Designed To Measure Student Perception Of School Connectedness, Nicole Jennifer Smith
UNLV Retrospective Theses & Dissertations
The purpose of this study was to design and validate an instrument to measure student perception of school connectedness. The intended use for this instrument was to evaluate school-based health interventions such as "Planned Approach to Healthier Schools" (PATHS; Lounsbery, Gast, & Smith, 2005), and to potentially examine other important correlates of student perception of school connectedness, such as attendance in school, referral rates, as well as school drop out and graduation. The development of the instrument included a series of steps which comprised (a) identification of a purpose, (b) specification of an underlying theory, (c) item development, (d) content …
Development And Implementation Of A Multilevel High-Pressure Gas Model, Penio Delev Penev
Development And Implementation Of A Multilevel High-Pressure Gas Model, Penio Delev Penev
UNLV Retrospective Theses & Dissertations
The development of an accurate hydraulic model of a complex natural gas system is a great challenge for the engineers working to improve an existing system, determining a long-term system expansion or just performing every-day operational studies; This thesis reviews the fundamental concepts of network analysis, equations, solution techniques, model types, and their applicability; Further, the process of developing a multilevel model of a high-pressure natural gas system is described. Emphasis is given on the innovative concepts employed in the model development such as GIS integration, use of actual parameters for more accurate modeling of valves, regulators and compressors, derivation …