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2002

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Neutron Multiplicity Measurements Of Target/Blanket Materials, Carter D. Hull, William H. Johnson Jan 2002

Neutron Multiplicity Measurements Of Target/Blanket Materials, Carter D. Hull, William H. Johnson

Transmutation Sciences Physics (TRP)

To begin developing the database necessary for the validation and benchmarking of the LAHET component of the MCNPX code suite, the UNLV research program has set forth the following objectives. First, the current MCNPX suite will be used to develop models of multi-element neutron detector systems. These models of the detector systems will be incorporated into the design of detailed models for the entire detector-target system. These models will first be used to help design the irradiation experiments, and then will be used to model the behavior of the system. Irradiation experiments corresponding to the detector-target system models will be …

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Development Of Dose Conversion Coefficients For Radionuclides Produced In Spallation Neutron Sources, Phillip W. Patton, Mark Rudin Jan 2002

Development Of Dose Conversion Coefficients For Radionuclides Produced In Spallation Neutron Sources, Phillip W. Patton, Mark Rudin

Transmutation Sciences Physics (TRP)

For the first year of this effort, the UNLV research team set out four objectives. First, the university and laboratory consortium had to be established. This consortium was tasked with helping to determine the methodology for determining the dose coefficients, and to ensure that the resulting DCs will be of use to the national programs developing accelerator-driven nuclear systems (such as the SNS or an accelerator-driven transmutation system) and to the health physics community as a whole. The second goal of this program was to determine a methodology and then prioritize the radionuclides so that the research effort would address …

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Development Of Dose Coefficients For Radionulides Produced In Spallation Neutron Sources: Annual Report, Phillip W. Patton, Mark Rudin Jan 2002

Development Of Dose Coefficients For Radionulides Produced In Spallation Neutron Sources: Annual Report, Phillip W. Patton, Mark Rudin

Transmutation Sciences Physics (TRP)

The University of Nevada, Las Vegas (UNLV) Transmutation Research Program has been tasked to support U.S. Department of Energy (DOE) efforts to assess the health risks associated with the operation of each of their accelerator-driven nuclear facilities for both NEPA and PSAR development. Quantifying the radiological risks to workers will have to be addressed during the design and siting of each of these facilities. U.S. Environmental Protection Agency (EPA) Federal Guidance Report No. 11 “Limiting Values of Intake and Air Concentration and Dose Conversion Factors for Inhalation, Submersion, and Ingestion”, developed two derived guides, Annual Limit on Intake (ALI) and …

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An Interdatabase Comparison Of Nuclear Decay And Structure Data Utilized In The Calculation Of Dose Coefficients For Radionuclides Produced In A Spallation Neutron Source, John P. Shanahan, K. Eckerman, A. Arndt, C. Gold, Phillip W. Patton, Mark Rudin, R. Brey, T. Gesell, V. Rusetski, S. Pagava Jan 2002

An Interdatabase Comparison Of Nuclear Decay And Structure Data Utilized In The Calculation Of Dose Coefficients For Radionuclides Produced In A Spallation Neutron Source, John P. Shanahan, K. Eckerman, A. Arndt, C. Gold, Phillip W. Patton, Mark Rudin, R. Brey, T. Gesell, V. Rusetski, S. Pagava

Transmutation Sciences Physics (TRP)

Internal and external dose coefficient values have been calculated for 14 anthropogenic radionuclides which are not currently presented in Federal Guidance Reports Nos. 11, 12, and 13 or Publications 68 and 72 of the International Commission on Radiological Protection. Internal dose coefficient values are reported for inhalation and ingestion of 1 μm and 5 μm AMAD particulates along with the f1 values and absorption types for the adult worker. Internal dose coefficient values are also reported for inhalation and ingestion of 1 μm AMAD particulates as well as the f1 values and absorption types for members of the …

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Nuclear Criticality, Shielding, And Thermal Analyses Of Separations Processes For The Transmutation Fuel Cycle, William Culbreth, Denis Beller Jan 2002

Nuclear Criticality, Shielding, And Thermal Analyses Of Separations Processes For The Transmutation Fuel Cycle, William Culbreth, Denis Beller

Separations Campaign (TRP)

The remediation of nuclear waste created by conventional fission reactors will rely upon the separation of the waste products for further treatment. The UREX+ process now under review will involve the use of an aqueous chemical process to separate out depleted uranium resulting in a product containing minor actinides, fission products, cesium, strontium, technetium, and iodine. The radioactive decay of strontium and cesium produces roughly half of the thermal and gamma production in spent fuel and the relatively short halflife of isotopes of both of these elements requires storage for about 300 years before heat and radiation decreases to safe …

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Nuclear Criticality Analyses Of Separations Processes For The Transmutation Fuel Cycle, William Culbreth, Pang Tao, Denis Beller Jan 2002

Nuclear Criticality Analyses Of Separations Processes For The Transmutation Fuel Cycle, William Culbreth, Pang Tao, Denis Beller

Separations Campaign (TRP)

The separation and partitioning of used commercial reactor fuel is a vital component of any reprocessing or transmutation strategy. To process the high actinide fuels required for a transmutation effort, the Chemical Technology Division (CMT) at Argonne National Laboratory (ANL) is developing a pyrochemical separations process. Currently, this work is being done via small experiments. While this is more than sufficient to develop the technologies required to process actinide-bearing fuels, it does not allow for the direct investigation of criticality concerns that would be present in larger systems. As the volume of waste to be treated increases, a higher probability …

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Inside Unlv, Diane Russell, Richard Jensen, Andy Grossman, Kevin Force Jan 2002

Inside Unlv, Diane Russell, Richard Jensen, Andy Grossman, Kevin Force

Inside UNLV

No abstract provided.

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Preservice Teachers' Beliefs About Classroom Management Before And After Student Teaching, Bonnie Gayle Ballard Jan 2002

Preservice Teachers' Beliefs About Classroom Management Before And After Student Teaching, Bonnie Gayle Ballard

UNLV Retrospective Theses & Dissertations

Preservice Teachers Beliefs About Classroom Management Before and After Student Teaching describes a qualitative research study that explored student teachers' beliefs about effective classroom management before they began their student teaching and then again at the end of their internship. This study examines the differences in these student teachers' beliefs about effective management techniques after they have had actual classroom experiences with their cooperating classroom teachers; Four student teachers and their nine cooperating teachers identified their management styles through the use of two surveys. The Inventory of Classroom Management Styles (ICMS) determined responses based on a continuum of control from …

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Dual -Enrolled Student Success In An Open Enrollment Community College, Frank James Dipuma Jan 2002

Dual -Enrolled Student Success In An Open Enrollment Community College, Frank James Dipuma

UNLV Retrospective Theses & Dissertations

The study investigated student success in a dual enrollment program at an open enrollment community college. The objective of the analysis was to determine the success of dual enrolled students compared with regularly enrolled community college students. Indicators of student success, including GPA, retention, and remediation, were examined for dual enrolled students; Results of the study indicated that high school students concurrently enrolled at a community college were similar in many respects to the general college population. Overall, there was a significant difference in the GPA performance between Community College High School (CCHS) students and regularly enrolled college students, with …

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From Sin To Sickness: A Sociological History Of The Problem Gambler, Bo Jason Bernhard Jan 2002

From Sin To Sickness: A Sociological History Of The Problem Gambler, Bo Jason Bernhard

UNLV Retrospective Theses & Dissertations

Long before medical and psychological experts determined that problem gambling qualified as a mental illness, moral experts determined that this problem could be "diagnosed" as a sin. This research examines pre-1915 gambling literature to determine the ways in which people who gambled too much were identified, named, and "treated" socially. Interestingly, virtually all of our current diagnostic criteria were identified by moral thinkers hundreds of years ago. Implications for the sociological history of problem gambling, the sociology of mental illness, and the sociology of religion and morality are discussed.

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The Solo Songs Of Richard Faith: A General Survey Of Style, Lori Tarisa Lovell Laux Jan 2002

The Solo Songs Of Richard Faith: A General Survey Of Style, Lori Tarisa Lovell Laux

UNLV Retrospective Theses & Dissertations

The Solo Songs of Richard Faith: A General Survey of Style presents the roles of both the voice and piano in the art songs of American composer, Richard Faith. Included is a short biography of the composer. His keen sensitivity to the imagery, thoughts, and emotions of the poetry are discussed in selected songs. Within these songs, the romantic lyricism of the voice and the lush harmonies of the piano depict the underlying thoughts, moods, and emotions of the poem.

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An Equal Educational Opportunity For Language Minority Students: A Legal Analysis Of Language Education After Lau, Roger J Gonzalez Jan 2002

An Equal Educational Opportunity For Language Minority Students: A Legal Analysis Of Language Education After Lau, Roger J Gonzalez

UNLV Retrospective Theses & Dissertations

An Equal Educational Opportunity for Language Minority Students: A Legal Analysis of Language Education After Lau is a legal/historical study that examined the current legal standards applicable to the education of language minority students in the United States. This was achieved by analyzing the jurisprudence emerging from the interpretation and application of the Lau v. Nichols Supreme Court decision; Several questions were considered during the research of this dissertation. These included: How has the legal precedent established in Lau v. Nichols been interpreted and applied by subsequent law cases involving the education of language minority students? What role has the …

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The Practices Of Principals In Implementing Inclusion In Their Schools, Wendi Charlene Hawk Jan 2002

The Practices Of Principals In Implementing Inclusion In Their Schools, Wendi Charlene Hawk

UNLV Retrospective Theses & Dissertations

Court cases and federal mandates are telling schools to move toward including students with disabilities into the general education setting. This has created an increased hardship for school site administrators as they take on the burden of preparing their schools for a conducive learning environment for all of the students at their schools; This case study was designed to gather data about the practices of the high school principal in the implementation of inclusion. The principal's role in the change process was analyzed through classroom observations, document analysis, and interviews with various staff members; The study included one high school …

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Traditional And Nontraditional Teacher Perceptions And Applications Of Dap, Connie Lynn Malin Jan 2002

Traditional And Nontraditional Teacher Perceptions And Applications Of Dap, Connie Lynn Malin

UNLV Retrospective Theses & Dissertations

This study was conducted to ascertain the perceptions of developmentally appropriate practices in teachers trained through traditional teacher preparation programs and a nontraditional teacher preparation program conducted in a Professional Development School. The secondary purpose was to determine whether the teachers' perceptions were applied as instructional practices; In Phase One of the study, 60, first year teachers were asked to complete The Primary Teacher Questionnaire to determine their perceptions of developmental appropriateness. A total of 12 subjects were stratified, randomly selected to advance to Phase Two and were observed teaching a 60 minute literacy lesson for applications of developmentally appropriate …

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Vegetation Effects On Airborne Particles And Soil Gradation Near Mesquite Dunes, Ann Marleau Pitchford Jan 2002

Vegetation Effects On Airborne Particles And Soil Gradation Near Mesquite Dunes, Ann Marleau Pitchford

UNLV Retrospective Theses & Dissertations

This study investigated the effect of vegetation on gradation of surficial soils and airborne concentrations of particulate matter at a site in the mesquite sand dunes within the Jornada Experimental Range, a research ranch near Las Cruces, New Mexico. Particles less than 10 microns in diameter were of particular interest. This study site was chosen because it had been in used in previous studies, and meteorological instruments and dust collectors were already installed. Aerodynamic size distributions for soil and airborne particulate matter samples collected at different positions near and on the dunes were determined using a laboratory settling tube apparatus. …

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A Phenomenological Study: Mid-Career Changer Transitions Through Levels Of Expertise, Merrie Lynne Schroeder Jan 2002

A Phenomenological Study: Mid-Career Changer Transitions Through Levels Of Expertise, Merrie Lynne Schroeder

UNLV Retrospective Theses & Dissertations

The purpose of this phenomenological study was to understand how two midlife adult men experienced different levels of expertise as they transitioned between non-teaching and teaching professions. Of further interest were the unique qualities that these mid career changers brought to secondary education and their recommendations for improving preparation, induction, and retention of midlife career changers in teaching; The study examined the transition experiences through three dimensions: (1) the levels of creativity in the context of environments; (2) the physical, social, and emotional development of the individuals; and (3) the theoretical framework of expertise. Semistructured interviews were conducted, and analyses …

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Assessing Faculty Perspectives On Implementing The Boyer Model, Delilah Anne Schwaner Jan 2002

Assessing Faculty Perspectives On Implementing The Boyer Model, Delilah Anne Schwaner

UNLV Retrospective Theses & Dissertations

The Boyer model is a well-recognized format chosen by many universities as a guide for leave, rank and tenure criteria, and for rewarding activities by faculty. Given a past, brief association with this model by faculty and administration at Southern Utah University, and the continuing need for a comprehensive review of scholarly effort in the institution, this study was undertaken to gauge the level of understanding of Boyer's model and his four scholarships, satisfaction with present policies, and attitudes toward change. The aim was to explore the use of a questionnaire as an instrument to measure knowledge and attitudes, to …

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An H -Adaptive Finite Element Compressible Flow Solver Applied To Light -Gas Gun Design, Timothy Todd De Bues Jan 2002

An H -Adaptive Finite Element Compressible Flow Solver Applied To Light -Gas Gun Design, Timothy Todd De Bues

UNLV Retrospective Theses & Dissertations

The Joint Actinide Shock Physics Experimental Research (JASPER) facility utilizes a two-stage light gas gun to conduct equation of state experiments. The gun has a launch tube bore diameter of 28 mm, and is capable of launching projectiles at a velocity of 7.4 km/s using compressed hydrogen as a propellant. A numerical study is conducted to determine what effects, if any, launch tube exit geometry changes have on attitude of the projectile in flight. A comparison of two launch tube exit geometries is considered. The first case is standard muzzle geometry where the wall of the bore and the outer …

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Cognitive Rehabilitation: A Method For Improving Sustained And Selective Attention In Adolescents With Attentional Deficits, Glinda Rae Bullock Jan 2002

Cognitive Rehabilitation: A Method For Improving Sustained And Selective Attention In Adolescents With Attentional Deficits, Glinda Rae Bullock

UNLV Retrospective Theses & Dissertations

Attention Deficit Disorder (ADD) is an inherited neuropsychological disorder affecting 3% to 5% of the school-aged population of the United States and having no identified single cause. The primary treatment recommended for those suffering from attentional deficits is multimodal, which includes psychostimulant medication in the form of methylphenidate (Ritalin) and behavioral/educational interventions. However, there is a subset of sufferers who, though taking psychostimulant medications and undergoing behavioral and educational interventions, continue to suffer the symptoms of attentional deficits: distractibility, impulsiveness and aggressive behavior; Those affected by acquired brain injuries as the result of some external trauma or neurological disorder suffer …

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A History Of Public School Finance And Educational Trends Within The State Of Nevada: Summary And Conclusions, Daniel Thomas Bittman Jan 2002

A History Of Public School Finance And Educational Trends Within The State Of Nevada: Summary And Conclusions, Daniel Thomas Bittman

UNLV Retrospective Theses & Dissertations

Funding public education has long been debated by policymakers and educators throughout history. This dissertation presents a systematic, structured, historical analysis of Nevada school funding and educational trends; This study provides a foundation for assessing the funding of public schools in Nevada. In addition, this work examines the social, economic, and legislative events influencing the funding of public education in Nevada. The social, economic, and legislative events were chosen because of their importance to Nevada Governors and Superintendents of Public Instruction, as described in Biennial Reports and Legislative Addresses, from statehood to present times. This study also provides information for …

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Tadpole Shrimp (Triops Longicaudatus) Responses To Acute And Developmental Hypoxic Exposure, Stacey Lynn Harper Jan 2002

Tadpole Shrimp (Triops Longicaudatus) Responses To Acute And Developmental Hypoxic Exposure, Stacey Lynn Harper

UNLV Retrospective Theses & Dissertations

Tadpole shrimp Triops longicaudatus (Crustacea: Branchiopoda: Notostraca) were reared under normoxic (19--21 kPa O2), moderate (10--13 kPa O2) or severe (1--3 kPa O2) hypoxic conditions to investigate the effects of developmental Po2 (partial pressure of oxygen) on adult metabolic, respiratory and cardiovascular physiology. Growth rates were independent of developmental Po2, although adult body size was significantly smaller in tadpole shrimp reared under severe hypoxic conditions relative to those reared under normoxic conditions. Most organisms increase respiratory surface area in response to hypoxic exposure. Yet growth of the epipodites (proposed respiratory structure) relative to mass (Y = aMb) was significantly reduced …

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Narrative Desire And Historical Reparations: Three Contemporary British Authors, Timothy S Gauthier Jan 2002

Narrative Desire And Historical Reparations: Three Contemporary British Authors, Timothy S Gauthier

UNLV Retrospective Theses & Dissertations

British novelists since Walter Scott have exhibited an interest in history, but this discursive affinity has transformed itself into a veritable obsession in the fiction of the last two decades. Indeed, a concern with and distrust of history and historiographic projects is often hailed as a defining characteristic of postmodernism. And while writers of "new historical novels" cannot be said to form a movement as such, the predominance of such texts reveals the presence of communal concerns, and a readily identifiable strain of literary production that addresses the circulation of mutual symptoms, beliefs, and anxieties as a response to living …

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Community College Faculty Attitudes On Professional Development Attendance And Incentives, Patricia T Laflamme Jan 2002

Community College Faculty Attitudes On Professional Development Attendance And Incentives, Patricia T Laflamme

UNLV Retrospective Theses & Dissertations

The full-time teaching faculty of the Community College of Southern Nevada responded to a survey designed to gather their views on internal professional development activities coordinated by the Faculty Center for Learning & Teaching (FCLT). The survey items elicited what types of activities or attitudes interfered with faculty attendance at such activities and what potential incentives or rewards were attractive to them in return for their participation in the activities; Significant findings for reasons that faculty do not participate in professional development primarily revolved around the faculty demographic characteristics of gender or teaching area (vocational or academic). This was true …

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Examining Democratic Ideals: A Case Study Of Dialogic Interactions Of Fifth -Grade Citizens, Jeanne Ann Klockow Jan 2002

Examining Democratic Ideals: A Case Study Of Dialogic Interactions Of Fifth -Grade Citizens, Jeanne Ann Klockow

UNLV Retrospective Theses & Dissertations

Four overarching questions guided the purpose of this study: (1) to examine the role of dialogic and social interactions in the classroom setting when constructing a democratic classroom, (2) to explore whether the dialogic co-construction of a democratic classroom community supported student learning and student ownership of learning in the classroom, (3) to investigate how the use of classroom dialogue facilitated meaning about classroom community membership and citizenship for students in a democratic classroom community, and (4) evaluate the effects and influences a democratic classroom community had on students; The study was a qualitative case study utilizing a cultural model …

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Teaching And Assessment Practices Of Instructors In Two Public Community Colleges In Nevada, Simon A Lei Jan 2002

Teaching And Assessment Practices Of Instructors In Two Public Community Colleges In Nevada, Simon A Lei

UNLV Retrospective Theses & Dissertations

The purpose of this dissertation was to examine variations of teaching and assessment strategies based on status and education level of faculty members at the Community College of Southern Nevada (CCSN) and the Truckee Meadows Community College (TMCC). To facilitate this study, a survey instrument was developed and distributed to 400 randomly selected faculty members employed at CCSN and TMCC, with an overall response rate of 45.8%; Adjunct and nondoctorate instructors focused significantly more on lectures than their full-time and doctorate colleagues. Full-time instructors, however, placed significantly more emphasis on class discussion, slide/powerpoint presentation, lab teaching, and distance learning compared …

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The Impact Of Freshman Success Courses On Freshman-To-Sophomore Persistence And Academic Achievement At A Wiche Urban University And College, Velicia Mcmillan-Haron Jan 2002

The Impact Of Freshman Success Courses On Freshman-To-Sophomore Persistence And Academic Achievement At A Wiche Urban University And College, Velicia Mcmillan-Haron

UNLV Retrospective Theses & Dissertations

This research investigated whether or not freshman success courses have an effect on persistence and/or academic achievement of freshman attending two large, urban, less selective WICHE (Western Interstate Commission for Higher Education) institutions, Metropolitan State College of Denver, and the University of Nevada, Las Vegas. More specifically, this study set out to analyze the participation in a freshman success course with persistence and academic achievement of nor-traditional freshmen at these WICHE Urban Universities. Finally, the study was also designed to identify the type or types of freshman success course(s) specifically offered at the WICHE Institutions participating in the study; The …

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Characteristics And Profiles Of Teachers Of Severely And /Or Multiply Disabled Students, Samira Risheg Jan 2002

Characteristics And Profiles Of Teachers Of Severely And /Or Multiply Disabled Students, Samira Risheg

UNLV Retrospective Theses & Dissertations

The purpose of this study was to gain a better understanding of the demographic variables and to investigate in an explanatory fashion an array of factors and variables that may well influence career decisions of teachers working with students of multiple impairments. It was specifically focused on factors that are linked with perceptions of administrative support or lack of it, commitment to special education, work related stress, emotional stress, burnout, desire to change career and commitment to Clark County School District. It specially focused on teachers of students with multiple impairments who are working in regular and special schools; Because …

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The Effects Of Socialization Through The Arts: Teaching Life Skills Strategies To Youth In West Las Vegas, Marcia Raquel Robinson Jan 2002

The Effects Of Socialization Through The Arts: Teaching Life Skills Strategies To Youth In West Las Vegas, Marcia Raquel Robinson

UNLV Retrospective Theses & Dissertations

There are at least 200 gangs in Southern Nevada with more than 7,700 identified members. "Gang bangers" do not anticipate a future or invest in "dreams," most do not expect to live beyond their 20's. Las Vegas is more the rule than the exception; the West Las Vegas community is the epicenter needing attention. The planning and development of this pilot program "The Performing and Visual Arts Camp for Kids" focused on teaching life skills and character development, such as getting along with others, respect for oneself and others, initiative, the ability to communicate, problem solving, perseverance, and goal setting …

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Relationship Of Selected Student Characteristics To Student Ratings Of Importance And Levels Of Satisfaction, Michael L Sauer Jan 2002

Relationship Of Selected Student Characteristics To Student Ratings Of Importance And Levels Of Satisfaction, Michael L Sauer

UNLV Retrospective Theses & Dissertations

Low graduation and retention rates are problems that many universities and colleges across the country face. Students often leave an institution prematurely, not because of academic difficulties but because of other obstacles that they believe impede their progress. Studying student satisfaction can help to understand what some of these difficulties might be. In order to address this issue, this study examined the relationship between student ratings of importance and student satisfaction with elements of the university environment and student characteristics; There were 1,208 subjects in this study. All subjects were given the Noel-Levitz Student Satisfaction Inventory during the Spring 2002 …

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Rage In The City Of Angels: The Historical Development Of The Skinhead Subculture In Los Angeles, Pete George Simi Jan 2002

Rage In The City Of Angels: The Historical Development Of The Skinhead Subculture In Los Angeles, Pete George Simi

UNLV Retrospective Theses & Dissertations

This study examines the historical development of the racist skinhead subculture in Los Angeles. The skinhead subculture is a highly diverse network of gangs that has experienced significant changes over the last twenty-five years. I use an in-depth case study approach that relies upon extensive observation of and interviews with current and former skinheads to explain how and why L.A. skinhead gangs have changed over time. I argue that the Los Angeles skinhead subculture has moved through three phases of organizational emphasis which I characterize respectively as social, political, and economic oriented gangs. My aim is to analyze how skinheads …

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