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Self-* Distributed Query Region Covering In Wireless Sensor Networks, Preethi Linga Jan 2002

Self-* Distributed Query Region Covering In Wireless Sensor Networks, Preethi Linga

UNLV Retrospective Theses & Dissertations

The connected sensor cover problem: Given a query over a sensor network, select a minimum or nearly minimum set of sensors, called connected sensor cover, such that the selected sensors cover the query region, and form a connected network among themselves. In its general form, this problem is known to be NP-hard; In this thesis research, we design the first, fully distributed, strictly localized, scalable, and self-* solution to the connected sensor cover problem. The Self-* concept has been used to include many fault-tolerant properties like self-configuring , self-reconfiguring/self-healing, etc. We will present a self-stabilizing solution and show that this …

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Using Religious Discourse To Construct Reality: President George W Bush And Osama Bin Laden, Lisa Menegatos Jan 2002

Using Religious Discourse To Construct Reality: President George W Bush And Osama Bin Laden, Lisa Menegatos

UNLV Retrospective Theses & Dissertations

This thesis examines and compares the religious discourse used by President George W. Bush in his September 20, 2001, address to a join session of Congress and by Osama bin Laden in his taped statement that aired on Al Jazeera television on October 7, 2001. As leaders of societies who both believe they are God's chosen people with a mission, both men relied on the religions of their respective nations to create a reality whereby one was good and the other evil. To illustrate how Bush and bin Laden achieve this, I apply the social construction of reality theory as …

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The Oxford Guide To Style, Priscilla Finley Jan 2002

The Oxford Guide To Style, Priscilla Finley

Library Faculty Research

Oxford's style manual will be essential to users previously dependent on Hart's Rules for Compositors and Readers (39th ed., 1986)--those preparing manuscripts for Oxford University Press and other British publishers--which Ritter revises and enlarges. Chapters cover general publication topics such as front matter and preparation of copy and proofs; editorial issues like punctuation, numbers, and capitalization; special conventions regarding science and mathematics; and "specialist subjects" including British and EU law, music, poetry, drama, and sacred works.

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Design And Analysis Of A Process For Melt Casting Metallic Fuel Pins Incorporating Volatile Actinides, Yitung Chen, Darrell Pepper, Randy Clarksean Jan 2002

Design And Analysis Of A Process For Melt Casting Metallic Fuel Pins Incorporating Volatile Actinides, Yitung Chen, Darrell Pepper, Randy Clarksean

Fuels Campaign (TRP)

The Transmutation Research Program requires the incorporation of non-fertile actinides into the fuel matrix for the transmuter blanket. One of three currently proposed candidate matrices for the transmuter blanket is a metallic alloy fuel matrix. Metallic fuels are an outstanding candidate for a transmutation fuel due to excellent irradiation performance and ease of fabrication. However, including a volatile constituent during fabrication of these fuel pins presents a challenge. High vapor pressure actinides, particularly americium, are susceptible to rapid vaporization and transport using traditional metal fuel casting processes. As a result, only a fraction of the desired charge is incorporated into …

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Design And Evaluation Of Processes For Fuel Fabrication, Georg F. Mauer Jan 2002

Design And Evaluation Of Processes For Fuel Fabrication, Georg F. Mauer

Fuels Campaign (TRP)

One of the primary concerns in selecting a fuel matrix for actinide-bearing fuels, such as those for transmutation systems, is fuel fabrication. Fuel fabrication technologies for the fabrication and re-fabrication processes must meet several technical considerations, such as minimizing secondary radioactive waste streams, economic viability, reasonable capital outlay, and must be easy to maintain over the transmuter core life cycle. Additionally, the fuel type chosen must be easily manufactured in a remote environment. The volatile behavior of americium during thermal processing further complicates these goals. Currently, the national program is investigating a number of candidate fuel matrices: metallic, ceramic, dispersion, …

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Biological Reduction Of Perchlorate In Ion Exchange Regenerant Solutions Containing High Salinity And Ammonium Levels, Tina M. Gingras, Jacimaria R. Batista Jan 2002

Biological Reduction Of Perchlorate In Ion Exchange Regenerant Solutions Containing High Salinity And Ammonium Levels, Tina M. Gingras, Jacimaria R. Batista

Civil and Environmental Engineering and Construction Faculty Research

The most promising technologies to remove perchlorate from water are ion exchange and biological reduction. Although successful, ion exchange only separates perchlorate from water; it does not eliminate it from the environment. The waste streams from these systems contain the caustic or saline regenerant solutions used in the process as well as high levels of perchlorate. Biological reduction could be used to treat the regenerant waste solutions from the ion exchange process. A treatment scheme, combining ion exchange and biodegradation, is proposed to completely remove perchlorate from the environment. Perchlorate-laden resins generate brines containing salt concentrations up to 6% or …

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‘Sworn’ Versus ‘Civilian’ Career Development Paths In The Fire Service In Nevada, Kelly Blackmon Jan 2002

‘Sworn’ Versus ‘Civilian’ Career Development Paths In The Fire Service In Nevada, Kelly Blackmon

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Clark County Fire Department has no formal career development path for fire prevention (civilian) personnel as it does for suppression (sworn) personnel. The purpose of this paper is to compare the career paths developed for suppression personnel and prevention personnel in five fire departments throughout the State of Nevada. Each department was chosen because they have over 100 total employees. Three dimensions relevant to the extent to which a career development path exists were identified and each department was assessed terms of these dimensions. The results illustrated the need to enhance the career development path in prevention to more …

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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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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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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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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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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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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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A Spectroscopic Analysis Of The Starburst Galaxies Ngc 3395 And Ngc 3396, Kenneth Plaks Jan 2002

A Spectroscopic Analysis Of The Starburst Galaxies Ngc 3395 And Ngc 3396, Kenneth Plaks

UNLV Retrospective Theses & Dissertations

We have obtained ultraviolet and visible wavelength spectra of 31 bright star forming knots in the interacting galaxies NGC 3395 and NGC 3396 using the Space Telescope Imaging Spectrograph (STIS) on the Hubble Space Telescope. The knots are possible super star clusters on the order of ∼100 pc diameter with measured metallicities on the order of 0.5--0.6 Z⊙ . The spectra are consistent with a massive production of hot young stars in a starburst; Ages of the starburst knots were calculated using several diagnostics from the Leitherer et al. Starburst 99 code (SB99) using an Initial Mass Function (IMF) with …

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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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Modeling, Fabrication, And Optimization Of Niobium Cavities: Phase Ii Second Quarterly Report, Robert A. Schill Jr., Mohamed Trabia Jan 2002

Modeling, Fabrication, And Optimization Of Niobium Cavities: Phase Ii Second Quarterly Report, Robert A. Schill Jr., Mohamed Trabia

Transmutation Sciences Materials (TRP)

Niobium cavities are important parts of the integrated NC/SC high-power linacs. Over the years, researchers in several countries have tested various cavity shapes. They concluded that elliptically shaped cells are the most appropriate shape for superconducting cavities. The need for very clean surfaces lead to the use of a buffered chemical polishing produce for surface cleaning to get good performance of the cavities. Up to this point, the second phase has resulted in the design of an experimental setup for the fluid flow experiment. Other experimental activities include the evaluation of a vacuum system are underway. Little reportable progress has …

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Exploring The Limits Of The Dipole Approximation With Angle-Resolved Electron Time-Of-Flight Spectrometry, Sierra Laidman, Monica Pangilinan, Renaud Guillemin, Sung Woo Yu, Gunnar Ohrwall, Dennis W. Lindle, Oliver Hemmers Jan 2002

Exploring The Limits Of The Dipole Approximation With Angle-Resolved Electron Time-Of-Flight Spectrometry, Sierra Laidman, Monica Pangilinan, Renaud Guillemin, Sung Woo Yu, Gunnar Ohrwall, Dennis W. Lindle, Oliver Hemmers

Environmental Studies Faculty Publications

Understanding the electronic structure of atoms and molecules is fundamental in determining their basic properties as well as the interactions that occur with different particles such as light. One such interaction is single photoionization; a process in which a photon collides with an atom or molecule and an electron with a certain kinetic energy is emitted, leaving behind a residual ion. Theoretical models of electronic structures use the dipole approximation to simplify x-ray interactions by assuming that the electromagnetic field of the radiation, expressed as a Taylor-series expansion, can be simplified by using only the first term. It has been …

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Using Diffuse Idiopathic Skeletal Hyperostosis To Determine Age At Death, Jennifer Elizabeth Riddle Jan 2002

Using Diffuse Idiopathic Skeletal Hyperostosis To Determine Age At Death, Jennifer Elizabeth Riddle

UNLV Retrospective Theses & Dissertations

This research took an age-related condition, diffuse idiopathic skeletal hyperostosis (DISH) and used it to create a new technique for estimating the age at death of older human skeletal remains (age ≥40). Diffuse idiopathic skeletal hyperostosis is a condition characterized spinally by ossification of the anterior longitudinal ligament resulting in fusion of vertebrae; and extraspinally by enthesopathies, ossification at sites of ligament or muscle attachments. Using the Terry Collection, housed at the Smithsonian Institution, National Museum of Natural History, 1728 human skeletons of known age at death were analyzed looking for evidence of spinal DISH. Found in 94 individuals, the …

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Analysis Of Two Methods Of Isometric Muscle Contractions During The Anti-G Straining Maneuver, Lance Lorenzo Annicelli Jan 2002

Analysis Of Two Methods Of Isometric Muscle Contractions During The Anti-G Straining Maneuver, Lance Lorenzo Annicelli

UNLV Retrospective Theses & Dissertations

This study investigated the difference in Mean Arterial Pressure (MAP) and Cardiac Output (CO) between two methods of isometric muscle contractions during the Anti-G Straining Maneuver (AGSM). 12 subjects (ages 18 to 38 yrs, height 176.8 +/- 7.4 cm, body mass 78.8 +/- 15.6 kg, percent body fat 14.3 +/- 6.6%) participated in the study. The study was a one-way within-subject design with test conditions counterbalanced. Two methods of isometric muscle contractions lasting 30 seconds each were assessed; an isometric push contraction and an isometric muscle tensing contraction. The dependent parameters were MAP and CO. The average MAP during the …

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The Effect Of Mechanical Vibration On Acute Power Output In The Bench Press, Brach John Poston Jan 2002

The Effect Of Mechanical Vibration On Acute Power Output In The Bench Press, Brach John Poston

UNLV Retrospective Theses & Dissertations

The purpose of this study was to investigate the effect of mechanical vibration on acute power output in the bench press. A total of 10 male subjects performed 3 sets of 3 reps of bench presses using a load equal to 70% one repetition maximum (1RM) on two occasions separated by 3 days. One occasion served as the experimental (vibration) condition while the other occasion served as the control (non-vibration) condition. The conditions differed due to a 30 second vibration stimulation period between bench press sets 2 and 3 in the experimental condition. The control condition incorporated a 30 second …

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The Day-To-Day Reliability Of Resting Metabolic Rate, Amy Elizabeth Thompson Jan 2002

The Day-To-Day Reliability Of Resting Metabolic Rate, Amy Elizabeth Thompson

UNLV Retrospective Theses & Dissertations

This purpose of this study was to determine the day-to-day reliability of resting metabolic rate. 18 college students, (mean age 22 +/- 3.6 yrs, height 65.78 +/- 22.0 in., body mass 68.05 +/- 10.34 kg, percent body fat 23 +/- 6.5%) gave informed consent to participate in the study. RMR was measured on four separate days over a period of 14 days. Height, weight, and resting heart rate were also recorded on each testing day. Body composition was assessed on the first day. Energy intake, energy expenditure, and caffeine intake were controlled between days. Each test was done between 7 …

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Token Economy Used To Increase Performance In Solving Algebra Problems For High School Students, Kari Mankes Maes Jan 2002

Token Economy Used To Increase Performance In Solving Algebra Problems For High School Students, Kari Mankes Maes

UNLV Retrospective Theses & Dissertations

The purpose of this investigation was to evaluate the effects of using a token economy approach to increase the performance in solving algebra homework quizzes for two high school boys. The program included tokens that could be redeemed for candy or extra credit points to encourage the students to try harder to check over their answers on homework quizzes before handing them in to be graded. Permanent product was used to record the scores of the homework quizzes and a comparison of baseline data and intervention data was done with a reversal design. The results showed that the students did …

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Investigation Of Clay Smear Formation In Laboratory-Prepared Layered Soil Specimens, Glen Edwin Maxwell Jan 2002

Investigation Of Clay Smear Formation In Laboratory-Prepared Layered Soil Specimens, Glen Edwin Maxwell

UNLV Retrospective Theses & Dissertations

The purpose of this study was to investigate the impact of layering geometry on the formation of clay smears in laboratory prepared soil specimens. Digitized video clips of specimen deformation under vertical shear were reviewed. New conventions and definitions were developed to describe and measure the onset of clay smear. Measurements for a variety of sample layering geometries were taken. Specimen geometry was compared with its respective smear development properties to derive general relationships; The study showed that as the sand thickness within a specimen increased, the required amount of vertical displacement and sand layer displacement prior to smear also …

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An Alternative Approach To Measuring Consumer Discrimination In The Market For Baseball Cards, Adam Neil Rabinowitz Jan 2002

An Alternative Approach To Measuring Consumer Discrimination In The Market For Baseball Cards, Adam Neil Rabinowitz

UNLV Retrospective Theses & Dissertations

The effect of consumer racial discrimination in the market for baseball cards has previously been examined (Nardinelli and Simon, 1990; Andersen and La Croix, 1991; Gabriel, et al., 1995; Gabriel, et al., 1999; McGarrity, et al., 1999; and Fort and Gill, 2000). Significant differences in the model specification and data are found throughout the literature, resulting in very mixed findings. The following study attempts to improve on these specifications by replicating the existing work and adding important missing variables. I find specification matters and consumer discrimination exists in this market. In addition, auction data are used to explore an alternative …

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Gis For Source Water Assessment And Nonpoint Source Modeling In The Las Vegas Valley, Marcelo Reginato Jan 2002

Gis For Source Water Assessment And Nonpoint Source Modeling In The Las Vegas Valley, Marcelo Reginato

UNLV Retrospective Theses & Dissertations

This thesis develops a better understanding of issues related to surface water contamination and protection of drinking water sources in the Las Vegas Valley. A Geographic Information System (GIS) was used to identify source water protection zones and to estimate nonpoint source loads for the entire watershed; The extent of the source water protection zones is represented by the valley's dry weather flows. After source water protection zones were defined, field work and GIS defined the potential contaminant sources and land uses within the protection zones; The GIS nonpoint source model shows that roads account for approximately 25% of the …

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Reading Anxiety's Effects On Incidental Vocabulary Acquisition: Are Culturally Relevant Texts Exempt?, Midena Maria Sas Jan 2002

Reading Anxiety's Effects On Incidental Vocabulary Acquisition: Are Culturally Relevant Texts Exempt?, Midena Maria Sas

UNLV Retrospective Theses & Dissertations

This study explored the relationships among reading anxiety, incidental vocabulary acquisition and culturally relevant texts. Thirty adult ESL students, 16 of Mexican origin and 14 of Chinese origin, completed modified forms of the Foreign Language Reading Anxiety Survey, vocabulary tests assessed on the Vocabulary Knowledge Scale, and an interview that solicited their opinions regarding reading anxiety remedies and the importance of cultural relevance in reaDing Results revealed a significant negative correlation between reading anxiety and performance on vocabulary tests, but not achievement, i.e. vocabulary gain. Out of six variables considered, reading anxiety was the primary predictor of performance, and cultural …

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