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2001

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A Comparison Of The Functional Efficacy Of Osteoarthritic Knee Joints Following Viscosupplementation Treatment, Stephanie Beasley Buford Jan 2001

A Comparison Of The Functional Efficacy Of Osteoarthritic Knee Joints Following Viscosupplementation Treatment, Stephanie Beasley Buford

UNLV Retrospective Theses & Dissertations

The purpose of this study was to compare two viscosupplementation products, Hyalgan and Synvisc, that may be used to treat osteoarthritis (OA) of the knee. Hyalgan and Synvisc, have both been studied extensively against NSAIDS and placebos and have both yielded significantly greater improvements in reducing the symptoms associated with OA. Forty-one patients diagnosed with OA of the knee volunteered to participate in this study. Each patient received the standard protocol of lateral injections with extended knee of 2 ml of either Hyalgan or Synvisc using a 20 gauge needle. Product efficacy and functional outcome were assessed using the Western …


Human Capital In The Hospitality Industry: Its Components, Role And Importance In Achieving Corporate Goals, Deborah Canale Jan 2001

Human Capital In The Hospitality Industry: Its Components, Role And Importance In Achieving Corporate Goals, Deborah Canale

UNLV Retrospective Theses & Dissertations

Since "value in this economy is increasingly being driven by employees and their ideas, as opposed to hard assets" (Zimmerman, p. 32), I sought to obtain knowledge about the components, role, and importance of human capital in the hospitality industry. Data were collected by interviewing 19 hospitality human resources professionals. The findings revealed three main components of human capital: service-oriented employees, empowered employees, and committed employees. Specifically, respondents identified specific managerial activities and roles that influence the profitability of their companies and the three cornerstones of their companies' missions: (1) treat employees well; (2) provide extraordinary service; and (3) provide …


Exploring Family Values, Jaime Lynn Carr Jan 2001

Exploring Family Values, Jaime Lynn Carr

UNLV Retrospective Theses & Dissertations

This exploratory study sought to develop an empirically based scale to measure family values (Family Values Scale), and to then begin to establish the validity of this instrument. This scale consists of two major subscales, Family Priority and Traditionality. Results indicate that these two subscales have acceptable internal consistency and temporal stability. Subject were students from the University of Nevada, Las Vegas (N = 380). Scores on the Family Values Scale were compared to scales measuring social desirability, selfism, satisfaction with life, perceived stress, social support, and psychological symptomotology. Results indicated that the Family Priority subscale is significantly related to …


Testing The Potential Of System Dynamics Models For Improving Public Participation In Resource Management, Sarah Williams Cloud Jan 2001

Testing The Potential Of System Dynamics Models For Improving Public Participation In Resource Management, Sarah Williams Cloud

UNLV Retrospective Theses & Dissertations

This thesis describes and discusses research which proposes that a system dynamics based-workshop can promote meaningful public participation in the resource management decision making process. The research tested the effectiveness of a system dynamics computer model for: (1) improving communication about technical data and stakeholder views; (2) increasing learning and insight into resource management issues; and (3) enhancing public trust in the decision making process. Seven research workshops were conducted to test the effectiveness of the model-based workshop for facilitating public participation in the management of the Las Vegas, NV water system. Workshop analysis showed that the system dynamics-based approach …


Jurors' Perceptions Of Child Witnesses With Disabilities, Darla Jean Cooper Jan 2001

Jurors' Perceptions Of Child Witnesses With Disabilities, Darla Jean Cooper

UNLV Retrospective Theses & Dissertations

Research has shown that children with disabilities are much more likely to be abused than their non-disabled peers. Moreover, it has been suggested that 50% of child victims of abuse possess a learning and/or emotional disability (NIH, 1999). Although legal professionals rely heavily on the victim to aid in the investigative and judicial process, studies have shown that jurors find children less credible witnesses than adults (Goodman & Bottoms, 1993). It has also been suggested that prosecutors are less likely to prosecute a case that involves a child with a disability (Perry & Wrightsman, 1991). The purpose of the present …


Photofragmentation Of Carbonyl Sulfide (Ocs) Following Core-Shell Photoexcitation And Photoionization, Lan Thi Ngoc Dang Jan 2001

Photofragmentation Of Carbonyl Sulfide (Ocs) Following Core-Shell Photoexcitation And Photoionization, Lan Thi Ngoc Dang

UNLV Retrospective Theses & Dissertations

Mass spectroscopy is used to study the formation of cations and anions after photoexcitation and photoionization of OCS in the vicinity of the S 2p, C 1s and O 1s thresholds. Singly charged cations are produced predominantly at the pi* and Rydberg resonances while dications are major products of dissociative channels above the thresholds. At the S 2p threshold, broad Franck-Condon regions observed for Rydberg excited states manifests an apparent change in molecular bond lengths upon the excitation of S 2p electrons to Rydberg orbitals. Neutral dissociation of the pi*3/2, pi*1/2 and 4S 3/2 excited states is found to compete …


Radiometric Evaluation Of The Prehistoric Mortuary Practices Of The Chinchorro Culture In Northern Chile, Matthew Ray Doubrava Jan 2001

Radiometric Evaluation Of The Prehistoric Mortuary Practices Of The Chinchorro Culture In Northern Chile, Matthew Ray Doubrava

UNLV Retrospective Theses & Dissertations

The Chinchorros were the aboriginal, pre-ceramic peoples of the northern Chilean and southern Peruvian coastline. The Chinchorro culture used four types of mummification techniques (red, black, natural and mud-coated). Each of these types may be distinct to the chronological time period in which it was used and, therefore, the typology would be used to define the Chinchorro chronology. Also, if the mummification styles are unique to a particular time period it would support the idea that this was an egalitarian group that did not recognize individual social rank in mortuary practices. To test these hypotheses 16 samples from 15 Chinchorro …


Job Characteristics And Self-Efficacy As Predictors Of Organizational Commitment, Min Fang Jan 2001

Job Characteristics And Self-Efficacy As Predictors Of Organizational Commitment, Min Fang

UNLV Retrospective Theses & Dissertations

Employee turnover could be ameliorated by controlling the antecedents of organizational commitment. The purpose of this study is to examine how job characteristics (skill variety, task identity, task significance, autonomy, self-efficacy and overall job characteristics) and self-efficacy may independently and interactively influence organizational commitment. Specifically, different combinations of job characteristics and self-efficacy are proposed to have different effects on organizational commitment. Data were collected from 177 hospitality employees at four hospitality companies. Predictive effects were found between job characteristics (overall and two of the dimensions) and organizational commitment. The hypothesized directional outcomes of the interaction of job characteristics and self-efficacy …


Determination Of Static Contraction Times To Exhaustion For Given Percentages Of A 1 Rm In The Bench Press, Leg Press, And Pulldown Exercises, Jeremy C Fransen Jan 2001

Determination Of Static Contraction Times To Exhaustion For Given Percentages Of A 1 Rm In The Bench Press, Leg Press, And Pulldown Exercises, Jeremy C Fransen

UNLV Retrospective Theses & Dissertations

The purpose of this study was to determine the time to exhaustion based on percentages of the 1 RM in the bench press, leg press, and pulldown exercises. Eleven healthy males, age 27.7 +/- 5.5 years, volunteered for the study to compare the strength differences between their maximum isotonic strength and isometric strength (a static contraction hold) in the pulldown, bench press, and leg press exercises. Five randomized static contractions sets were performed 5 cm below the lockout position in the bench press and leg press exercises. The static contraction position for the pulldown was when the forearm was at …


Determinants Of The Earnings Gap Between Blacks And Whites: A Human Capital Approach, James Michael Goldenberg Jan 2001

Determinants Of The Earnings Gap Between Blacks And Whites: A Human Capital Approach, James Michael Goldenberg

UNLV Retrospective Theses & Dissertations

The persistence of wage differences between blacks and whites has provided economists a perplexing topic for debate. It has been proposed that this gap can be attributed in great part to a disparity in educational attainment between the two groups. This study looks specifically at whether a college degree diminishes the wage differential. The empirical findings suggest that although a higher level of education increases the average wage for both blacks and whites it does not diminish the wage differential between the two groups. The results also reveal the possibility that the wage gap is in part due to the …


Electrical Characterization Of Plasma-Enhanced Cvd Silicon Nitride Dielectric On Copper, Amudha Regina Irudayam Jan 2001

Electrical Characterization Of Plasma-Enhanced Cvd Silicon Nitride Dielectric On Copper, Amudha Regina Irudayam

UNLV Retrospective Theses & Dissertations

In this work, a novel metal-insulator-metal (MIM) capacitor process is introduced and integrated in a Copper Interconnect technology, whose smallest feature size is 0.18mum process, which has good yield, reliability and repeatability. The MIM uses a one-photomask process and hence is termed as the Low-cost-integration (LCI) MIM. The LCI MIM uses copper as the bottom electrode, plasma enhanced silicon nitride as the dielectric, and Tantalum nitride as the top electrode. The target capacitance density is 1.5fF/mum2. The target leakage current is 1e-7A/cm2 at 3.3V at 125°C. The maximum operating voltages that the MIM is designed for is 5V. The voltage …


Paleoindian Technological Provisioning In The Western Great Basin, Kelly Elizabeth Graf Jan 2001

Paleoindian Technological Provisioning In The Western Great Basin, Kelly Elizabeth Graf

UNLV Retrospective Theses & Dissertations

North American archaeologists researching Paleoindian adaptations have suggested that Paleoindians, represented by Clovis, Folsom, and Plano traditions, were highly mobile foragers. By contrast, "Paleoarchaic" hunter-gatherers of the Great Basin are thought to have become increasingly sedentary through time, specially adapted and tethered to diverse lacustrine/marsh resources; My research project aims to understand human adaptation during the early Holocene through characterization of the lithic assemblages from two stemmed point sites in western Nevada, the Sadmat and Coleman sites. These sites are located in the Lahontan basin and possess data sets unique and compelling in addressing the research objectives proposed in this …


Evaluation Of Factors Affecting The Performance Of Biological Phosphorus Removal In A Full-Scale Wastewater Treatment Plant, Cesar Rossas Mota Filho Jan 2001

Evaluation Of Factors Affecting The Performance Of Biological Phosphorus Removal In A Full-Scale Wastewater Treatment Plant, Cesar Rossas Mota Filho

UNLV Retrospective Theses & Dissertations

Parameters bearing on the performance of a full-scale 88-MGD enhanced biological phosphorus removal (EBPR) system were examined. Samples were collected for a 10-month period in a basin and in a secondary clarifier of the plant. Samples were analyzed for nitrate, total and ortho-phosphorus, COD, acetic acid, polyhydroxybutyrate, glycogen, calcium, magnesium, potassium, ammonia, alkalinity, TSS, ORP, pH, and DO. Profiles of the aerobic and anaerobic zones, and secondary clarifier showed that the plant is operating as an actual EBPR system, with sporadic phosphorus excursions. Low BOD input to the system, high phosphorus from return streams of the sludge handling process, high …


Assessing Learning Outcomes In College Introductory Economics Courses: A Case Study, John Richards Mundy Jan 2001

Assessing Learning Outcomes In College Introductory Economics Courses: A Case Study, John Richards Mundy

UNLV Retrospective Theses & Dissertations

Many issues affecting economic education remain unresolved within the profession. Much scholarly attention in recent years relates to the teaching of college introductory economics principles in courses. This thesis analyzes the learning outcomes of students taking introductory college economics principles courses. Little basic research has been performed on the assessment of how students actually learn the concepts of economics. This thesis takes a unique approach to the assessment of learning outcomes. Following a pre- and post-test survey, students were scored on the basis of both their economic attitude sophistication, and their knowledge of content. The results were regressed against a …


Differentiating Educational Needs Of North American And Non-North American Tradeshow Exhibitors, Hyunsoo Park Jan 2001

Differentiating Educational Needs Of North American And Non-North American Tradeshow Exhibitors, Hyunsoo Park

UNLV Retrospective Theses & Dissertations

The purpose of this study is to determine what educational demands exhibitors have to ensure a successful trade show and how these demands are different among North American and Non-North American trade show exhibitors. In addition, the educational topics, the educational format, and the timing of education provided by show management for exhibitors, will be identified. The data collection method for this study was a structured, self-administered survey questionnaire; This study was also designed to measure the overall perceived importance score of educational information for North American and Non-North American exhibitors and compare different perceptions toward the information among the …


Mock Juror Perceptions Of Juvenile Defendants In Adult Court, Jennifer Lynne Personius Jan 2001

Mock Juror Perceptions Of Juvenile Defendants In Adult Court, Jennifer Lynne Personius

UNLV Retrospective Theses & Dissertations

The focus of this study is on individual juror's perceptions of juveniles that have been remanded to the adult court system for trial. Jurors are expected to be harsher on juveniles tried in adult court than they would be on adults who committed the same crime. Participants recruited from students in UNLV's criminal justice classes were given a short vignette of a crime where the defendant's age and severity of the crime were manipulated. Participants were also given a short packet of personality questionnaires. Participants were asked to make verdict recommendations and sentence the offender when a guilty verdict was …


The Effects Of Thymic Hormones On The Proliferation Of Human Myelogenous Leukemia Cells, Melissa Pompilius Jan 2001

The Effects Of Thymic Hormones On The Proliferation Of Human Myelogenous Leukemia Cells, Melissa Pompilius

UNLV Retrospective Theses & Dissertations

Thymosin fraction 5 (TF5), comprised of an array of small molecular weight peptides, partially purified from the adult bovine thymus gland, contains multiple biologically active humoral factors. TF5 influences T cell differentiation, lymphokine production and restores immune deficiencies in a variety of animal models in vitro and in vivo. Because TF5 generally enhances immune reactivity, we examined the effects of TF5 on the proliferation of HL-60 human promyelocytic leukemia cells. Direct viable dye cell counting, the MTT reaction, and the clonogenic potential of HL-60 cells were used to determine cell proliferation. The potency and efficacy of TF5 for the inhibition …


Alternative Perspectives Of Projectile Point Variability During The Levantine Neolithic, Doss F. Powell Jan 2001

Alternative Perspectives Of Projectile Point Variability During The Levantine Neolithic, Doss F. Powell

UNLV Retrospective Theses & Dissertations

Ghwair I, a Pre-Pottery Neolithic B community in southern Jordan, has an abundant projectile point assemblage that facilitates a thorough characterization and detailed techno-typological analysis of the projectile points recovered. It is concluded that current typologies tend to mask significant morphological aspects of the projectile points. To explore these aspects, other perspectives such as raw material selection and manufacture are considered; The low amounts of cortex, minimum retouch, and the frequency tertiary blades are shown to be reflections of a conscientious effort to secure fine quality chert for lithic production. The presence of the "miniature" points represents a deliberate effort …


The Acute Effects Of Transdermal Testosterone Precursor Administration On Serum Steroid Hormone Levels In Females, Mark Anthony Rasmussen Jan 2001

The Acute Effects Of Transdermal Testosterone Precursor Administration On Serum Steroid Hormone Levels In Females, Mark Anthony Rasmussen

UNLV Retrospective Theses & Dissertations

Most governing sports authorities have banned the use of anabolic steroids as ergogenic aids. Recently, a transdermal testosterone precursor dietary supplement (AndrosteDERMRTM) has become available; athletes can apply the cream to their skin with the belief that it will increase serum testosterone levels, muscle mass, and strength. The purpose of this study was to measure the effects of one milliliter of AndrosteDERMRTM) applied to the inner surface of the upper arm on the serum levels of androstenedione, and free and total testosterone in female subjects. Serum levels were measured before application and every 45 minutes thereafter for six hours. Serum …


Variables That Affect The Amount Of The Consent That Clinical Research Subjects Read, Joanne Hembree Robinson Jan 2001

Variables That Affect The Amount Of The Consent That Clinical Research Subjects Read, Joanne Hembree Robinson

UNLV Retrospective Theses & Dissertations

Various codes, regulations and guidelines have been established that outline what information must be provided to human subjects to insure that their participation in clinical drug studies is informed as well as voluntary. Recently questions have been raised as to whether written consent forms guarantee participants are making autonomous, informed decisions. The purpose of this study was to determine how much of the consent research subjects read in relation to selected variables. Seventy-seven percent of the participants reported that they read the entire consent form, but results suggest that 30--40% may not understand the study they are in. A question …


Cyclic Irrigation Of Turfgrass Using A Shallow Saline Aquifer, Christopher M Schaan Jan 2001

Cyclic Irrigation Of Turfgrass Using A Shallow Saline Aquifer, Christopher M Schaan

UNLV Retrospective Theses & Dissertations

Utilization of poor quality waters in the urban landscape has the potential of saving large quantities of good quality water for higher priority uses. Bernudagrass in particular is well suited to be irrigated with poorer quality water. A two-year field study was conducted to determine the long-term effects of applying shallow saline aquifer water to two turfgrass sports fields. The water (0.69-- 3.4 dSm-1) was applied using cyclic irrigation during peak demand months (May--Oct). Treatments consisted of cycling saline water through the existing irrigation systems. Saline substitution of fresh water was set at 1, 2, 3 and 4 times per …


Craniofacial Morphology And The Consequences Of Intentional Cranial Deformation Among Prehistoric Andean Populations, Matthew Paul Rhode Jan 2001

Craniofacial Morphology And The Consequences Of Intentional Cranial Deformation Among Prehistoric Andean Populations, Matthew Paul Rhode

UNLV Retrospective Theses & Dissertations

This research examined the cultural practice of cranial deformation (annular and anteroposterior), and its effects on 27 craniometric measurements and biodistances among 350 prehistoric crania from the Azapa valley of northern Chile. Included among these 27 measurements were nine facial measurements previously considered to be unaffected by deformation. One-way ANOVA, Bonferroni multiple comparisons, and discriminant function analyses indicated that out of the 27 measurements were seven centrally located facial and basilar measurements unaffected by deformation: orbital breadth, palate (maxillo-alveolar) breadth, nasal breadth, basion-prosthion length, cranial base length, foramen magnum length, and foramen magnum breath. Included among these seven measurements were …


Terrorism In The News: A Constructionist Approach, Lisa Linn Sharp Jan 2001

Terrorism In The News: A Constructionist Approach, Lisa Linn Sharp

UNLV Retrospective Theses & Dissertations

This thesis examines portrayals of terrorism in the New York Times during the 1990s. Using ethnographic content analysis, I analyze several dimensions of coverage including the emphasis given in articles to violence, the characterizations used to describe terrorists and their actions, the sources of information used in the reports, whether the cause of the terrorists are addressed, and the character of coverage for men and women terrorists. I argue that the portrayals focus on the most sensational and dramatic aspects of terrorism and authority's interpretations of the groups; they fail to provide readers an analysis of causes, contexts, and structural …


The 2000 Presidential Election: A Content Analysis Of Newspaper Media Coverage, Jennifer Barbara Stein Jan 2001

The 2000 Presidential Election: A Content Analysis Of Newspaper Media Coverage, Jennifer Barbara Stein

UNLV Retrospective Theses & Dissertations

Following the guidelines of journalistic integrity, media coverage of presidential elections should be fair and unbiased. This study examined the newspaper media coverage of George W. Bush and Al Gore, the two major presidential candidates in the 2000 election. This study examined all issues of the Las Vegas Review-Journal, Las Vegas Sun and the Reno Gazette-Journal during the 65-day time frame from Labor Day to Election Day 2000. This study tested three research questions and one hypothesis. The research questions asked if the overall amounts of newspaper coverage of George W. Bush and Al Gore were equal and neutral and …


An Application Of The Kuleshov Experiment On Generation X: Testing Viewer Reactions To Editing, Giselle Touzard Jan 2001

An Application Of The Kuleshov Experiment On Generation X: Testing Viewer Reactions To Editing, Giselle Touzard

UNLV Retrospective Theses & Dissertations

The Kuleshov Experiment, conducted in Russia in 1919, concluded that audiences find meaning in the juxtaposition of unrelated shots. This discovery was one of the earliest observations used to formulate the theory of montage. This study combines historical information related to the original experiment, editing techniques, and theories in visual literacy. This is a quasi-experiment applied to a new generation of viewers; A video that replicates the original experiment is used as a stimulus, and an instrument observes audience's reactions to editing. The assumption made is that a new generation of viewers will be capable of recognizing the lack of …


Characterization Of Perillyl Alcohol As A Cell Migration-Inhibiting Compound, Johanna Elizabeth Wagner Jan 2001

Characterization Of Perillyl Alcohol As A Cell Migration-Inhibiting Compound, Johanna Elizabeth Wagner

UNLV Retrospective Theses & Dissertations

Inhibiting cancer cell migration could greatly improve the prognosis of cancer patients. Prior to commercialization of the Plopper laboratory designed a 96-well plate, we optimized our in vitro migration and cell viability assays to meet the standards set by the National Cancer Institute for use in a large-scale drug screen for anti-migration compounds. Using these assays, we measured the cytotoxicity and migration-inhibiting effect of dimethyl sulfuoxide, a drug solvent, in three cancer and one non-cancer cell lines. Next, we investigated plant-derived compounds called monoterpenes, known chemopreventive/chemotherapeutic agents, for non-cytotoxic, migration-inhibiting properties in MCF-10A normal and MDA-MB 435 cancerous breast cells. …


Clare Boothe Luce And The 1953--1954 Trieste Crisis, Jelena Velisavljevic Jan 2001

Clare Boothe Luce And The 1953--1954 Trieste Crisis, Jelena Velisavljevic

UNLV Retrospective Theses & Dissertations

My paper argues that Clare Boothe Luce, American ambassador to Italy, greatly influenced the Trieste crisis and negotiations of 1953--1954. Luce's understanding of the Cold War in terms of aggressive anti-Communism against the Soviet Union in general and against Yugoslavia in particular, determined her actions during the Trieste negotiations. As a very powerful woman in the Eisenhower administration, Luce managed to make her voice heard on the highest levels and to direct the settlement in ways she thought best for the United States and its ally Italy. Although forceful reports she sent to the State Department and the major policymakers …


The Impact Of Being Dignified By One's Manager On Leader-Member Exchange And Psychological Empowerment, Loren Brett Wender Jan 2001

The Impact Of Being Dignified By One's Manager On Leader-Member Exchange And Psychological Empowerment, Loren Brett Wender

UNLV Retrospective Theses & Dissertations

This research tested whether being dignified by one's manger had a relationship with LMX and psychological empowerment. Specifically, did being dignified or derogated by one's manager lead to LMX and psychological empowerment's three dimensions: meaning, influence, and self-efficacy?;In order to examine the relationships mentioned above, survey data were collected from 325 employees of service firms located in Las Vegas, Nevada. A majority of the employees (255) were students who attended University of Nevada, Las Vegas, while the others were from other service organizations in Las Vegas and Boston. The data was examined using a path analysis to test the hypotheses …


Evaluation Of In Situ Biodegradation Of Perchlorate In A Contaminated Site, Zhong Zhang Jan 2001

Evaluation Of In Situ Biodegradation Of Perchlorate In A Contaminated Site, Zhong Zhang

UNLV Retrospective Theses & Dissertations

This thesis investigated parameters affecting perchlorate biodegradation in the Las Vegas Wash area in Las Vegas, NV. Perchlorate is known to interfere with the functioning of the thyroid gland of humans. Perchlorate concentrations along the Las Vegas Wash were found to range from zero to 1000 ppb, while perchlorate concentrations in the contaminated seepage were approximately 100 ppm. Microbial counts in 30 water samples from the Las Vegas Wash and the contaminated seepage indicated that indigenous perchlorate-reducing microbes are ubiquitous and present in reasonable numbers. In the contaminated area, natural perchlorate biodegradation seems to be limited by at least three …


The Presence Of Adverse Selection In The Las Vegas Resale Housing Market, Ryan Matthew Bledsoe Jan 2001

The Presence Of Adverse Selection In The Las Vegas Resale Housing Market, Ryan Matthew Bledsoe

UNLV Retrospective Theses & Dissertations

Adverse selection may affect the resale housing market. Sellers hold valuable information concerning the quality of their homes that is not directly available to buyers. If buyers are unable to identify quality, the relocation decision is different for owners of low and high-quality houses. Since information is asymmetric owners of low-quality houses are more likely to relocate than owners of high-quality houses, other things constant. Thus, I suggest that quality is decreasing in the number of times a house has been resold. The presence of a relationship between price and the number of times a house has been resold is …