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Relationships Between The Groundwaters Of Ash Meadows, Death Valley, Pahranagat Valley And The Nevada Test Site Based On Statistical Analysis And Modeling Of Trace Element Data, Sara Michelle Cox
UNLV Retrospective Theses & Dissertations
Relationships between the groundwaters of the Nevada Test Site, Ash Meadows, Pahranagat, and Death Valley have been studied by many people over many years. Using hydrogeochemical data from these areas (sampled and analyzed by the Harry Reid Center for Environmental Studies) hydrologic subbasins were classified on the basis of trace element concentrations and compare these to previous classification systems. In addition, previously suggested flow relationships were examined on the basis of trace element concentrations, in particular those elements which are thought to behave conservatively in oxidizing environments. These efforts were made with the aid of statistical analyses such as principal …
The Reading Span Test And Its Predictive Power For Reading Comprehension Among Young And Old Adults, Paul James Schroeder
The Reading Span Test And Its Predictive Power For Reading Comprehension Among Young And Old Adults, Paul James Schroeder
UNLV Retrospective Theses & Dissertations
Although many researchers appear to agree on the usefulness of both simple and complex span tasks, many disagree on the specifics of how or why they measure working memory. The following paper considers competing theories of the relationship between working memory tasks and higher order cognitive function. Consideration is given to simple and complex measures of working memory, various theories about them, and theories based on research within the cognitive aging domain. Subsequent discussion reports the findings from a new study aimed at resolving disagreements about the relationship between lower and higher level cognitive abilities in college-age and older adults.
Test Suite Prioritization Techniques Applied To Web-Based Applications, Vani Kandimalla
Test Suite Prioritization Techniques Applied To Web-Based Applications, Vani Kandimalla
UNLV Retrospective Theses & Dissertations
Web applications have rapidly gained importance in many businesses. The increased usage of web applications has created a challenging need for efficient and effective web application testing strategies. This thesis examines one aspect of web testing, that of test suite prioritization. We examine new test suite prioritization strategies that may improve the rate of fault detection for user-session based test suites. These techniques consider test-lengths and systematic coverage of parameter-values and their interactions. Experimental results show that some of these prioritization strategies often improve the rate of fault detection of test suites when compared to random ordering of the test …
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 …
Scenic America: This Is A Test Poems, Rachael Sullivan
Scenic America: This Is A Test Poems, Rachael Sullivan
UNLV Retrospective Theses & Dissertations
The stilled moment of a photograph is a type of promise---which we believe because we see---that time cannot be stopped. In this series of poems, I have tried to confront a stilled moment, discarded object, or fragment of a past, and I have found this confrontation readily sparked in an ekphrasis of photography. Etymologically, "ekphrasis" means to call out (or describe) an object, traditionally an art object. However, ekphrasis as a literary genre has attracted much critical interest, complicating the term's definition. I employ an ekphrasis of dialogue, hoping to reach beyond both the poem and ekphrastic object. Given this …
Conservation Of Charge In Secondary Electron Emission Test Stand, Shaoru Garner
Conservation Of Charge In Secondary Electron Emission Test Stand, Shaoru Garner
UNLV Retrospective Theses & Dissertations
This Thesis reports theoretical and experimental evaluations of the critical components of the UNLV secondary electron emissions test stand. These components include: (1) a source of electrons, an electron gun, (2)methods and instrumentation to obtain a direct measure of electron current supplied by the electron gun, and (3) a position sensitive particle detector that is capable of detecting single electrons and that provides the spatial and temporal distribution of secondary electrons. The overall objective of this project is to study the properties of secondary electron emission and the conservation of charge in the secondary electron emission test stand. Secondary electron …
Validation Of The Load Collector Ratio (Lcr) Method For Predicting The Thermal Performance From Five Passive Solar Test Rooms Using Measured Data, Daniel James Overbey
Validation Of The Load Collector Ratio (Lcr) Method For Predicting The Thermal Performance From Five Passive Solar Test Rooms Using Measured Data, Daniel James Overbey
UNLV Retrospective Theses & Dissertations
The standard procedure used to analyze buildings that feature passive solar heating strategies is the load collector ratio (LCR) method. This procedure was developed by the Los Alamos National Laboratory between 1977 and 1984. As a result of the LCR method, one will obtain the solar savings fraction (SSF) of the input passive solar builDing The SSF is the most widely accepted metric used to evaluate the effectiveness of passive solar heated buildings. The SSF may be defined as the extent to which a building's passive solar feature(s) reduces a building's auxiliary heat requirement relative to a comparable building devoid …
Study Of Gas Density Profile About A Plastic Test Piece Under Vacuum, Hari Krishnan
Study Of Gas Density Profile About A Plastic Test Piece Under Vacuum, Hari Krishnan
UNLV Retrospective Theses & Dissertations
Nevada Shocker is a 540KV, 7O, 50ns, pulsed power device based on Marx Bank and Blumlein technologies. When this machine fires, the energy is funneled to a plastic insulator supported by two circular electrodes. The purpose is to study the surface breakdown properties of the plastic. It is hypothesized that a thin layer of gas exists between hard vacuum and the solid. The goal is to determine change in the gas profile and suggest how it may contribute to surface flashover; Stimulated desorption techniques such as photon stimulated desorption and thermal stimulated desorption are employed in characterizing the gas profile. …
Lead Contamination Risks From Imported Candies: Developing A Protocol To Test For Lead In Candy Products Using The X-Ray Flouresence Instrument, Tracy L Donnelly
Lead Contamination Risks From Imported Candies: Developing A Protocol To Test For Lead In Candy Products Using The X-Ray Flouresence Instrument, Tracy L Donnelly
UNLV Retrospective Theses & Dissertations
The problem of lead in candies imported from Latin America and or Thailand is an important public health issue. These candies come from a number of sources, with lead often being present when tamarind or chili pepper is used as an ingredient. Currently, it is expensive and time consuming for heath protection agencies to test candy that has entered the consumer market in the United States. Hence children may potentially be exposed to lead contamination. If community health agencies had access to XRF technology, health agencies could quickly determine if specific candies contain lead. To date, there has not been …
Analysis And Evaluation Of Field Retroreflectivity Performance Of Pavement Marking Materials At Various Test Deck Locations In The Us, Siddharth David
Analysis And Evaluation Of Field Retroreflectivity Performance Of Pavement Marking Materials At Various Test Deck Locations In The Us, Siddharth David
UNLV Retrospective Theses & Dissertations
Pavement markings are one of the most important elements of traffic control on roadways. They are lines used on a roadway to warn and direct drivers and to control traffic operations on highways and streets. Pavement markings are typically white and yellow in color depending on usage. Different types of materials are used in the manufacture of pavement markings, including paint, tape, epoxy, thermoplastic, and preformed thermoplastics. Performance measures used to evaluate pavement markings include retroreflectivity, color, and durability; In the US, the National Transportation Product Evaluation Program (NTPEP), administered by the American Association of State Highway and Transportation Officials …
Effects Of Test -Taking Strategy Instruction On High -Functioning Adolescents With Autism Spectrum Disorder, Dal Hee Songlee
Effects Of Test -Taking Strategy Instruction On High -Functioning Adolescents With Autism Spectrum Disorder, Dal Hee Songlee
UNLV Retrospective Theses & Dissertations
Students with autism spectrum disorder (ASD) are expected to take various forms of tests in general education classrooms, therefore test-taking skills are very important and a necessary tool for students with ASD as they strive for academic success. The Test-Taking Strategy (Hughes, Schumaker, Deshler, & Mercer, 2002) has been found to be useful for students with learning disabilities and emotional behavioral disorders (EBD), but not yet with students with ASD; The purpose of this multiple-probe design study was to investigate the effects of test-taking strategy instruction on high-functioning adolescents with ASD. Specifically, the Test-Taking Strategy (Hughes et al.) was taught …
Seat Shock Test Stand Development, Christopher Ransel
Seat Shock Test Stand Development, Christopher Ransel
UNLV Retrospective Theses & Dissertations
The UNLV CMEST (The Center for Mechanical & Environment Systems Technology) lab and Army Research Labs have undertaken a research project to develop a seat system that will reduce the level of shock introduced into the bottom of a seat when a vehicle trips a land mine. In order to develop the seat system, a test stand was designed using an air cannon to fire a 5 pound steel slug at an impact plate, creating a high acceleration impulse or shock. The shock from the slug impact is redirected from the horizontal plane to the vertical plane through a pinned …
Test Preparation Strategies And Test Taking Strategies Use In Chinese High School Students, Yun Peng
Test Preparation Strategies And Test Taking Strategies Use In Chinese High School Students, Yun Peng
UNLV Retrospective Theses & Dissertations
This study investigated the use of test-preparation and test-taking strategies of 429 tenth graders from a key high school in Guangzhou, China. Differences in strategy uses among low-, medium-, and high-achieving groups were determined in two subject-matter areas (Chinese language and mathematics); Instruments used for data collection were the Test Preparation Strategies Questionnaire (TPSQ) and Test Taking Strategies Questionnaire (TTSQ), which examined students' strategy use in cognitive/metacognitive, motivational/emotional, environmental management areas; Results indicated that Chinese tenth graders memorized contents more often than other strategies while preparing for tests. Students planned their course of action for test preparation and selected study …
Sequential Procedure For Test Of Uniformity In Multinomial Models, Hai Zhen
Sequential Procedure For Test Of Uniformity In Multinomial Models, Hai Zhen
UNLV Retrospective Theses & Dissertations
In this thesis we deal with a sequential procedure for testing uniformity in a given multinomial distribution using inverse sampling. From a decision theoretic point of view, we devise an efficient stopping rule that satisfies a pre-determined P*-condition. Dirichlet distribution Type II will be primarily used for developing the inverse-type sequential procedure based on the decision theoretic point of view. We assume a non-zero cell probability (parameter) for given multinomial models. In particular, we will be focusing on the equal cell probability configuration (EPC) among all feasible cell configurations. One of the main goals is to find optimal sample sizes …
The Influence Of Instruction Set And Test Format On The Detection Of Malingering, Teri Jean Forrest
The Influence Of Instruction Set And Test Format On The Detection Of Malingering, Teri Jean Forrest
UNLV Retrospective Theses & Dissertations
It is increasingly common for individuals involved in civil litigation to undergo neuropsychological evaluation. This trend increases the possibility that individuals receive trade-secret test information from their attorneys before evaluation in order to maximize their ability to appear injured. However, no known research has examined what effect this knowledge may have on an individual's ability to successfully evade detection as a malingerer. The current investigation examined the performance of archival brain-damaged individuals, normal controls, and individuals in three malingering groups on both previously and newly developed malingering indices for the Wisconsin Card Sorting Test (WCST) and the Halstead Category Test …
The Effects Of An Elevated Pre-Test Heart Rate On A Cardiovascular Test, Jeffrey Allen Dolgan
The Effects Of An Elevated Pre-Test Heart Rate On A Cardiovascular Test, Jeffrey Allen Dolgan
UNLV Retrospective Theses & Dissertations
This study investigated the effects of an elevated Pre-Test Heart Rate (PTHR) on the results of the Physical Working Capacity Maximum (PWC max) test and Steady State Heart Rates (SSHR) during the two workloads that are used to predict PWC max. Fifteen subjects (ages 18-33 yrs, height 169.38 +/- 9.77 cm, body mass 68.43 +/- 12.53 kg, percent body fat 22.27 +/- 7.40 %) participated in the study. PTHR was elevated using three methods prior to the administration of the PWC max test and the results compared to a criterion PWC max test that was completed after the subject was …
Capitalism And Violence: A Test And Critique Of The Alienation Proposition, Roger Isaac Roots
Capitalism And Violence: A Test And Critique Of The Alienation Proposition, Roger Isaac Roots
UNLV Retrospective Theses & Dissertations
The belief that primitive societies are more harmonious than modern ones is "deeply engrained in scholarly discourse" (Edgerton 1992, 2). Durkheim, Weber, and Marx all believed in the notion (Edgerton 1992, 3). Since at least the nineteenth century, social scientists have proposed that capitalism and industrialism represent artificial phenomena, alien to human nature, and that the growth and spread of capitalism in recent generations has spawned an increasing degree of angst, frustration, conflict, and stress on human societies. This concept, known as alienation, has been especially popular among sociologists of Marxist orientation who perceive human misery to be a product …
Prediction Of Performance Time On A Treadmill Stress Test Following A Bruce Protocol, Helena Nadine Boersma
Prediction Of Performance Time On A Treadmill Stress Test Following A Bruce Protocol, Helena Nadine Boersma
UNLV Retrospective Theses & Dissertations
The purpose of this study was to determine if screening tools from a self-reporting questionnaire, comprised of work-capacity questions, and physiological data, could be developed to predict treadmill test time when following a Bruce protocol. One hundred and eight subjects completed the questionnaire and performed treadmill tests. A stepwise regression analysis was used to develop equations from the research parameters established on the questionnaire, and resulted in two useful predictive equations, one for males and one for females. Results indicated 52 males and 33 females had actual treadmill times of six minutes or greater. The prediction equations predicted 59 males …
Diagnostic Test And Analytical Methods For Resolving Fan/Motor Vibration Problems In Air-Conditioning Units, Qin Liu
UNLV Retrospective Theses & Dissertations
The objective of this thesis is to develop test and analysis procedures to revise ASHRAE Standard 87.1 Standard for small (<36 in. diameter) propeller fans. Test and analysis procedures also need to be used to convert AHRAE Standard 87.1 - 1992 test results where the fan hub mobility is zero to corresponding results that will exist with a finite (nonzero) hub mobility; In this project, the vibration modes of a fan with three cambered blades were investigated. Experimental and Finite Element Analysis (FEA) was performed on the fan blade and the fan-motor unit. The project compared the results obtained from the FEA and experimental modal analysis of the fan assembly. A very good correlation between FEA and the experimental modal analysis was found.
The Effect Of Feedback At Test On Source Memory Performance, Shelby Kainani Morita
The Effect Of Feedback At Test On Source Memory Performance, Shelby Kainani Morita
UNLV Retrospective Theses & Dissertations
Previous research has demonstrated that witnesses can come to believe they saw details that were only suggested to them after the witnessed event. For both theoretical and practical reasons, there is interest in developing techniques that reduce the effect of misleading post-event information. The present study examined the effect of receiving feedback at the time of retrieval on eyewitness suggestibility. All participants watched a videotaped crime of a home burglary and then answered questions that contained misleading information. On a final source memory test, participants that were provided with feedback as to the accuracy of their attributions during the first …
Interpretation Of Cone Penetration Test Data For Underconsolidated Clay, Jeffrey Alec Moss
Interpretation Of Cone Penetration Test Data For Underconsolidated Clay, Jeffrey Alec Moss
UNLV Retrospective Theses & Dissertations
In this study, cone penetration test data is correlated to vane shear and triaxial undrained shear strength test data for a saturated and underconsolidated marine clay. It is shown that cone penetration test data not corrected for pore pressures underestimates undrained shear strength. Additionally, small increases in the degree of consolidation of the underconsolidated clay increases the undrained shear strengths.
Modeling The Diffusion Of Reactive And Nonreactive Solutes In Cores From The Cannikin Test Site, Amchitka Island, Alaska, Nicole Ann Brown
Modeling The Diffusion Of Reactive And Nonreactive Solutes In Cores From The Cannikin Test Site, Amchitka Island, Alaska, Nicole Ann Brown
UNLV Retrospective Theses & Dissertations
The migration and distribution of contaminants in the subsurface environment are controlled by groundwater movement and the extent of interaction between the contaminants and surrounding rock matrix. Studies have shown that diffusion through the rock matrix may serve as a prominent contaminant retardation mechanism in crystalline igneous rocks; The diffusion of reactive and nonreactive solutes through basalt and breccia cores from the Cannikin Test Site, Amchitka Island, Alaska has been studied. Lead (Pb(II)) and cesium (Cs(I)) were chosen as reactive solutes and bromide (Br-) was chosen as the nonreactive solute. Because retardation due to sorption is expected to affect the …
Basic Skills Teacher Licensure Test Scores As College Of Education Admission Criteria, Audrey Lawrence
Basic Skills Teacher Licensure Test Scores As College Of Education Admission Criteria, Audrey Lawrence
UNLV Retrospective Theses & Dissertations
The objective of this paper is to analyze the criterion-related validity of the Pre-Professional Skills Test (PPST) cut-scores as teacher education program admission criteria. PPST and American College Test (ACT) scores of 372 graduates, and PPST scores and other academic characteristics of 1,062 graduates of a Nevada teacher education program were examined. Findings of this study support that PPST and ACT subtests measure similar constructs, PPST scores do not predict success in student teaching, nor do they predict teacher candidates' college GPAs over and above ACT scores. In addition, over 99 percent of students who received scores of 22 or …
Test Result Use In The Elementary Classroom, Kevan Eileen Ommen
Test Result Use In The Elementary Classroom, Kevan Eileen Ommen
UNLV Retrospective Theses & Dissertations
This study examines elementary teacher use of district curriculum-based test results in making instructional decisions. A questionnaire was developed and distributed to elementary teachers asking about their routine practices when using test results, their comfort level in doing so, and training they have received. Returns from 944 teachers were analyzed, and it was determined some concerns exist related to the interpretation and use of test information by elementary teachers. It was concluded that teachers may need training to improve their skills in test result interpretation, and the formats used by school districts to distribute test results may need modification. In …
An Augustinian Analysis Of The Comprehensive Test Ban Treaty, Jon Mcclendon White
An Augustinian Analysis Of The Comprehensive Test Ban Treaty, Jon Mcclendon White
UNLV Retrospective Theses & Dissertations
Applying the Christian principles of depraved human nature, expectation of detrimental behavior from irrational actors, and rational attempts to limit the destructiveness of war, Augustine would conclude that the declared nuclear weapons states have a moral obligation to prevent proliferation of nuclear weapons. Laws suitable to the needs of the times are the appropriate method for accomplishing this. The pending Comprehensive Test Ban Treaty (CTBT) is one such law. Because the CTBT bans all nuclear explosions and establishes an intrusive inspection scheme, it will have an impact on the U. S. Department of Energy (DoE). DoE should respond by participating …
Modeling The Rates Of Lead And Strontium Uptake By Zeolitized Tuff From Rainier Mesa, Nevada Test Site, Nevada, Patricia Ann Bernot
Modeling The Rates Of Lead And Strontium Uptake By Zeolitized Tuff From Rainier Mesa, Nevada Test Site, Nevada, Patricia Ann Bernot
UNLV Retrospective Theses & Dissertations
The fate and transport of contaminants released during nuclear testing at the NTS are partly controlled by interactions of their aqueous species with mineral surfaces. It has been shown that retardation of contaminants in the subsurface may be controlled by intraparticle mass transfer rather than equilibrium partitioning. For this reason, the rate of lead (Pb) and Strontium (Sr) uptake by zeolitized tuff from Rainier Mesa, NTS, was studied as a function of pH, ionic strength, and metal concentration; To test the hypothesis that sorption of Pb occurs through surface precipitation and Sr sorbs through diffusion, the data were modeled by …
Summary Fading Knowledge Of Results (Kr): Test For The Dynamic Acquisition Protocols, Changjiang (River) Sun
Summary Fading Knowledge Of Results (Kr): Test For The Dynamic Acquisition Protocols, Changjiang (River) Sun
UNLV Retrospective Theses & Dissertations
The primary purpose of this study was to examine the effects of dynamic acquisition protocols by comparing dynamic and static KR schedules in a single experiment. Five groups of participants (n = 13 per group) completed 90 acquisition trials of a force production task. The analysis of delayed no-KR retention test revealed that the participants in the summary fading KR group performed better than the three static KR groups, indicating that the dynamic acquisition protocols produces more efficient learning than static acquisition protocols. This finding is interpreted as support for Adams' theory (1971) that the most appropriate acquisition protocol would …
Seismic Evaluation Of The U3ax/Bl Landfill In The Area 3 Rwms, Nevada Test Site, Nevada, Maximilian Kemnitz
Seismic Evaluation Of The U3ax/Bl Landfill In The Area 3 Rwms, Nevada Test Site, Nevada, Maximilian Kemnitz
UNLV Retrospective Theses & Dissertations
A site evaluation, a seismic hazard analysis and a site response analysis were performed for the U3ax/b1 landfill which is located within the Area 3 Radioactive Waste Management Site of the Nevada Test Site. The site evaluation included application of the Spectral-Analysis-of-Surface-Waves method to determine the low-strain shear modulus for the alluvium and landfill waste. The seismic hazard analysis included evaluation of potential ground motions from earthquakes and underground nuclear explosions. The worst-case seismic hazard was defined in terms of the controlling earthquake, produced by rupture of the Yucca Fault. The controlling earthquake was modeled in the site response analysis …
The Development Of A Job-Related Non-Discriminatory Physical Abilities Test For The Firefighters At The Nevada Test Site, Nickele A'Lise Miller
The Development Of A Job-Related Non-Discriminatory Physical Abilities Test For The Firefighters At The Nevada Test Site, Nickele A'Lise Miller
UNLV Retrospective Theses & Dissertations
A job-related, non-discriminatory Physical Abilities Test (PAT) was developed for the Nevada Test Site (NTS) firefighters. The PAT was developed through firefighter interviews and tabulated call responses between 1990 and 1995. The interviews and task history yielded a job analysis from which six routine, physically demanding tasks were identified and developed into a test battery. Eleven NTS firefighters tested the proposed PAT for reliability. Subjects were timed on the six tasks. The total time for completion, including the change from bunker gear to wildland gear, was also recorded. An Intra-class Reliability coefficient was calculated for each task and total time. …
Prediction Of Maximum Oxygen Uptake From A Modified Ymca 3-Minute Step Test, Antonio Saraiva Santo
Prediction Of Maximum Oxygen Uptake From A Modified Ymca 3-Minute Step Test, Antonio Saraiva Santo
UNLV Retrospective Theses & Dissertations
The relationship between post exercise recovery heart rate (PERHR) and maximum oxygen uptake using a height specific bench with a modified Young Men's Christian Association (YMCA) 3-Minute Step Test was investigated. Sixty apparently healthy males and females between the ages of 18 and 55 years stepped on a height specific bench for 3 minutes in order to obtain their 1-minute and 15-second post exercise recovery heart rates. An EKG monitored post exercise recovery heart rates. Maximum oxygen uptake was measured by open circuit spirometry on a motor-driven treadmill. Correlation and regression statistics were used to analyze the data. Results indicate …