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2000

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Fear As A Predictor Of Firearm Ownership And Concealed Weapons Permits In Clark County, Nevada, Becky Beckstead Harris Jan 2000

Fear As A Predictor Of Firearm Ownership And Concealed Weapons Permits In Clark County, Nevada, Becky Beckstead Harris

UNLV Retrospective Theses & Dissertations

This study is specific to Clark County, Nevada. Two relationships, the relationship between fear and gun possession [defined in terms of firearms registration] and the relationship between fear and the issuance of concealed weapons permits, were posited. Data for the number of registered firearms and issued concealed weapons permits were obtained from the Las Vegas Metropolitan Police Department Firearms Detail and CCW Detail. Criminal incidents involving firearms in public areas that appeared to be random in nature [stranger to stranger violence] were gathered through an archive search of Nevada's largest newspaper servicing Clark County, the Las Vegas Review-Journal; Statistical analysis …

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Evolution Of The Kingman Arch, Southern Nevada, Juliana Marie Herrington Jan 2000

Evolution Of The Kingman Arch, Southern Nevada, Juliana Marie Herrington

UNLV Retrospective Theses & Dissertations

The Kingman Arch is a structurally high area in southern Nevada and northwestern Arizona that lies partially within the Colorado River Extensional Corridor. Apatite fission track and 40Ar/39Ar thermochronological analyses were conducted for granite samples collected from a 4.5 kilometer thick Precambrian section in the central McCullough Range. 40Ar/ 39Ar data suggest slow cooling of the Kingman Arch between 1000 to about 560 Ma. Cessation of cooling is coincident with deposition of the Cambrian Tapeats Sandstone. Paleozoic and Mesozoic strata are absent on the Kingman Arch, but are present in areas adjacent to it. Thermal modeling suggests differential cooling of …

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A Study Of The Effect Of Music Genre And Intensity On Ethnic Menu Item Selection In A Military Dining Facility, Tammy S Hinskton Jan 2000

A Study Of The Effect Of Music Genre And Intensity On Ethnic Menu Item Selection In A Military Dining Facility, Tammy S Hinskton

UNLV Retrospective Theses & Dissertations

Restaurateurs spend millions of dollars yearly in the design, building, and renovations to their establishments. In many cases, atmosphere has a greater influence over consumers' purchase decisions than the product itself. One of the most easily and inexpensively adjusted element of the atmosphere is music; The purpose of this study is to determine the effects of music genre and intensity on patrons' ethnic menu item selection of a military dining facility in the Southwestern United States. The extent to which ethnic music could influence associated ethnic menu items was examined; Three research questions were formulated to address this issue. The …

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Two New Algorithms For Classical Problems In Computer Science, John Gerard Howe Jan 2000

Two New Algorithms For Classical Problems In Computer Science, John Gerard Howe

UNLV Retrospective Theses & Dissertations

This thesis presents two algorithms dealing with problems in two classic algorithm areas in computer science. The first algorithm presents a simple solution to the selection problem. The sequential computing model form of this selection algorithm is presented first followed by a general parallel computing model version; The second algorithm is a relatively simple bookkeeping approximation solution to the Steiner tree problem in graphs. The problem presented deals with determining the shortest tree connecting Steiner nodes in a graph that has no direct connections between the Steiner nodes. Both algorithms are described and analyzed in detail with an appropriate running …

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The Gamma Distribution As An Alternative To The Lognormal Distribution In Environmental Applications, Ross Joseph Iaci Jan 2000

The Gamma Distribution As An Alternative To The Lognormal Distribution In Environmental Applications, Ross Joseph Iaci

UNLV Retrospective Theses & Dissertations

In environmental applications dealing with data from contaminated sites the positively skewed lognormal distribution has been the most commonly used model. The upper confidence limit (UCL) of the arithmetic mean of a lognormal population is computed by using the H-statistics. Recent concerns have arisen to the effectiveness of the H-Statistic based UCL for the mean of the lognormal distribution in instances of moderately to highly skewed data sets. In this paper the positively skewed Gamma distribution is considered as an alternative to the lognormal distribution and is shown to produce more reasonable UCL's for the mean.

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Foliar Response Of Woody Ornamentals To Sprinkler Irrigation With Reuse Water, Lea Anne Guthrie Jordan Jan 2000

Foliar Response Of Woody Ornamentals To Sprinkler Irrigation With Reuse Water, Lea Anne Guthrie Jordan

UNLV Retrospective Theses & Dissertations

This experiment examined foliar damage associated with sprinkle irrigation of reuse water. Reuse water, municipal water and a synthesized saline water were applied via sprinkler irrigation to 20 ornamental tree species. A visual damage index was created based on canopy and leaf level characteristics to assess damage. The index rated species tolerance to reuse water applied directly to the foliage. After 15 months of treatment, most species had higher index values (greater stress) when sprinkle irrigated with reuse or saline water. Six species even showed significant damage when spray irrigated with municipal water. Internal normalized tissue Na concentration (reuse-municipal) was …

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The Geology And Geochemistry Of Volcanic Rocks In The Lava Mountains, California: Implications For Miocene Development Of The Garlock Fault, Deborah L Keenan Jan 2000

The Geology And Geochemistry Of Volcanic Rocks In The Lava Mountains, California: Implications For Miocene Development Of The Garlock Fault, Deborah L Keenan

UNLV Retrospective Theses & Dissertations

The Lava Mountains are located in the Mojave Desert, southern California along the Garlock Fault, a major continental strike-slip fault that separates the southwestern Basin and Range to the north from the Mojave block to the south. Chemical similar dacitic lava and pyroclastic flows erupted from the 9-km diameter Western Lava Mountains volcano. Dacites with limited chemical variability reflect interaction of mantle derived basalt with both metabasalt and graywacke of the Mesozoic Rand Schist and Cretaceous "Atolia-type" granitoids. Geophysical data suggests a low angle contact between these lithologies at a depth of about 20 km. This boundary may have served …

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Progressive Transmission Of Digital Images, Joseph V Kraft Jan 2000

Progressive Transmission Of Digital Images, Joseph V Kraft

UNLV Retrospective Theses & Dissertations

New high-resolution sensors produce very large data sets and associated images requiring large bandwidths or extended times to transmit. Other techniques have been proposed to compress and sort an image to send the most significant portions of the image first, allowing the user to choose the amount of compression applied based on transmission time; but they transmit the image as a whole; Many users are interested in only portions of the image. This case is better served by a transmission method with capabilities to browse the image at low resolution to first pick the portion of interest, followed by transmission …

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Oncology Nurses' Perceived Knowledge, Assessment, And Recommendation Of Alternative Therapies, Gudrun Kristofersdottir Jan 2000

Oncology Nurses' Perceived Knowledge, Assessment, And Recommendation Of Alternative Therapies, Gudrun Kristofersdottir

UNLV Retrospective Theses & Dissertations

Cancer patients use alternative therapies (ATs) frequently and often without the knowledge of their health care providers. The purpose of this study was to investigate oncology nurses' perceived knowledge of ATs, their level of assessment of the use of ATs by cancer patients, and what ATs they recommend to patients. The framework used to guide this study is the Neuman System Model. A descriptive survey design using a questionnaire listing 24 ATs was used to survey a random sample of nurses certified by the Oncology Nurses Certification Corporation in the Western region of the U.S. Results of the survey (n …

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Selection Of Exercise Intensity Using Perceptual Cues During Television Distraction, Wendee Ellen Kukuwich Jan 2000

Selection Of Exercise Intensity Using Perceptual Cues During Television Distraction, Wendee Ellen Kukuwich

UNLV Retrospective Theses & Dissertations

The selection of exercise intensity during television distraction was studied in 20 highly-fit males (VO2peak: 63.2 +/- 10.7 ml·kg -1·min-1) between the ages of 28 and 45 years. It was hypothesized that the perception of exercise intensity during cardiovascular exercise would be influenced by an environmental distraction, such as watching television (TV). A within-subjects design was used to compare heart rate (HR), stride frequency (SF), and MET level responses recorded during 15 minutes of exercise performed with and without distraction. Seventeen of the 20 subjects had a change in HR of greater than 5 bpm between conditions, with 9 subjects …

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The Relationships Between Selected Strategic Alliance Factors And The Success Of Strategic Alliances Between United States Casino Hotels And Restaurants, Hyunjung Kwon Jan 2000

The Relationships Between Selected Strategic Alliance Factors And The Success Of Strategic Alliances Between United States Casino Hotels And Restaurants, Hyunjung Kwon

UNLV Retrospective Theses & Dissertations

Strategic alliances between hotels and restaurants have existed in one form or another for many years. Hotels and restaurant companies will form more strategic alliances in the future as hotel and restaurant operators see strategic alliances as offering attractive benefits. Such a partnership can enhance their competitive edge, improve hotels' revenues and boost their reputation; The purpose of this study was to investigate the implementation of strategic alliances between U.S. casino hotels and restaurants by examining the relationships between the perceived success of strategic alliances and their partner selection, shared control structure and subtle-issues management. An exploratory study was conducted …

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Average Cayley Genus For Cayley Maps With Dihedral Groups, Jamie Keith Langille Jan 2000

Average Cayley Genus For Cayley Maps With Dihedral Groups, Jamie Keith Langille

UNLV Retrospective Theses & Dissertations

Let Gamma be a finite group and let Delta be a generating set for Gamma. A Cayley map associated with Gamma and Delta is an oriented 2-cell embedding of the Cayley graph GDelta (Gamma) such that the rotation of arcs emanating from each vertex is determined by a unique cyclic permutation of generators and their inverses. A formula for the average Cayley genus is known for the dihedral group with generating set consisting of all the reflections. However, the known formula involves sums of certain coefficients of a generating function and its format does not specifically indicate the Cayley genus …

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Basic Skills Teacher Licensure Test Scores As College Of Education Admission Criteria, Audrey Lawrence Jan 2000

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 …

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An Outcomes Study Of Diabetes Education, Tara Lynn Mcgill Jan 2000

An Outcomes Study Of Diabetes Education, Tara Lynn Mcgill

UNLV Retrospective Theses & Dissertations

The purpose of this study was to evaluate the effect of a twelve-hour diabetic education program on self-care behaviors and level of integration of diabetes in patients with type 1 & type 2 diabetes. Using the Theory of Integration (Hernandez, 1995) as the study's conceptual framework, an outcomes study was conducted. Thirty-five questionnaires were distributed to subjects at the initial class of the diabetes education program, with 22 being able to be utilized for analysis; The results of this study showed that there was a significant increase in the level of integration of diabetes (t(21) = 2.998, p < .005). When individual statements of integration were assessed, three areas were found to have a significant increase. These included, understanding how diabetes affects one's body by living with diabetes (t(21) = 2.890, p < .005), being aware of bodily cues that distinguish blood glucose levels (t(21) = 2.822, p < .005), and knowing more about taking care of one's diabetes more than anyone (t(21) = 3.044, p < .005); Analysis of individual statements of self-care behavior included significant changes in eating the foods according to a diabetes meal plan (t(22) = 2.802, p < .005), eating snacks at the right time of day (t(21) = 3.049, p < .005), knowing how to treat a hypoglycemic reaction (t(22) 3.323, p < .005) and carrying a sugar source to treat those hypoglycemic reactions (t(22) = 3.045, p < .005). Significant increases were also noted in the logging of blood glucose results (t(22) = 3.239, p < .005), and in obtaining the amount of exercise needed for diabetes (t(22) = 3.023, p < .005). This study is an important initial evaluation of the effects of a diabetes education program on diabetes patients' selfcare behaviors and level of integration.

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The Removal Of Perchlorate From Waters By A Membrane-Immobilized Biofilm, Jian Liu Jan 2000

The Removal Of Perchlorate From Waters By A Membrane-Immobilized Biofilm, Jian Liu

UNLV Retrospective Theses & Dissertations

This thesis investigated the feasibility of using a membrane-immobilized biofilm reactor to remove perchlorate from waters. Perchlorate (ClO4 -) is easily reduced under anaerobic conditions to harmless chloride (Cl-). In this system, the perchlorate-contaminated water is physically separated from the biofilm by the membrane. Perchlorate diffuses, without the need of external energy, to the degrading biofilm, thereby minimizing the contamination of the product water by microbes. A mixed microbial culture capable biologically of reducing perchlorate was enriched and attached to the membrane surface. The results demonstrated the feasibility of using a membrane-immobilized biofilm reactor to remove perchlorate from waters. In …

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Modelling Land Subsidence Due To Groundwater Pumping/Recharging In The Las Vegas Valley, Mehmet Necmi Okuyan Jan 2000

Modelling Land Subsidence Due To Groundwater Pumping/Recharging In The Las Vegas Valley, Mehmet Necmi Okuyan

UNLV Retrospective Theses & Dissertations

A model for ground settlement and swelling occurring in Las Vegas Spring Preserve due to groundwater level changes has been developed. A FORTRAN code that uses the finite element method has been prepared. The computer code calculates the hydraulic head in the aquifer resulting from pumping and recharging of the Wells The settlement or swelling of the ground level at each node point is calculated based on hydraulic conditions. The computed hydraulic head and settlement resulted between January 1990 and December 1999 have been compared to the observed static heads and the measured settlement; The sensitivity of the settlement to …

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Hybrid Electric Vehicle Regenerative-Braking Using Ultracapacitors, Steven L Pay Jan 2000

Hybrid Electric Vehicle Regenerative-Braking Using Ultracapacitors, Steven L Pay

UNLV Retrospective Theses & Dissertations

The concept and application of ultracapacitors for electric load leveling and regenerative braking is presented. Proposed sizing of an ultracapacitor system is presented and discussed based on the available energy and the nominal operating voltage from a hybrid electric vehicle transit bus; A control scheme is required to effectively control the charge and discharge of the ultracapacitor system. This system is required to provide for electric load leveling, effective control and maximization of the regenerative-braking system. In order to optimally control the ultracapacitor system a DC/DC converter is required. Alternatively, direct connection of the ultracapacitor system across the battery bank …

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Eskdale, A Religious Commune And The Order Of Aaron, Katherine Jones Peek Jan 2000

Eskdale, A Religious Commune And The Order Of Aaron, Katherine Jones Peek

UNLV Retrospective Theses & Dissertations

The focus of this thesis will be a narrative overview of the religious commune at EskDale, Utah and its affiliated religious sect, the Order of Aaron. This study includes field research utilizing participant observation, informal interview and formal interview methods. Historical background information was gathered with a literature review and from newspaper clippings, letters and other documents supplied to me by the community at EskDale and the Order of Aaron; Through this study I will review the founding of the religion and the community. I will also identify changes, previously undocumented, that have occurred during the last ten years. Descriptions …

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Hyper-Rayleigh Scattering Measurements Of Hyperpolarizabilities For Tetrahedral Molecules, Robby D Pyatt Jan 2000

Hyper-Rayleigh Scattering Measurements Of Hyperpolarizabilities For Tetrahedral Molecules, Robby D Pyatt

UNLV Retrospective Theses & Dissertations

First hyperpolarizabilities beta of carbon tetrachloride, carbon tetrafluoride, deuterated methane, and methane have been measured by hyper-Rayleigh scattering in gas and liquid phases. The gas-phase results for the coefficient beta xyz (atomic units) are 11.0 +/- 0.9 (CC14), 5.4 +/- 0.4 (CF4), 7.0 +/- 0.6 (CD4), 7.1 +/- 0.7 (CH4). Ab initio calculations are consistent with the measured values for CCl4 and CF4. A discrepancy between theory and experiment remains for CH 4, and is likely due to higher-order vibrational effects not accounted for in calculations. While the effective, liquid-phase beta for CCl 4 is 200% higher than in the …

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Evolution Of A Small Silicic System: The Mccullough Pass Caldera, Clark County, Nevada, Aaron Lee Sanford Jan 2000

Evolution Of A Small Silicic System: The Mccullough Pass Caldera, Clark County, Nevada, Aaron Lee Sanford

UNLV Retrospective Theses & Dissertations

The McCullough Pass Caldera is a small caldera in southern Nevada formed by the eruption of the McCullough Pass rhyolites. The McCullough Pass rhyolites erupted as three successive rhyolitic magma batches from 14.12 to 13.98 Ma and produced the McCullough Pass caldera. Each magma batch was chemically zoned by sidewall crystallization prior to erupting. The first magma batch erupted to produce the McCullough Pass tuff and caused collapse of the Jean Lake caldera along a ring fracture identified by the pattern of Jean Lake domes. The second magma batch produced the Ramhead rhyolite and resulted in collapse of the Ramhead …

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The Effect Of Self-Generated Information On The Plausibility Of Unlikely Autobiographical Events, Michele Dawn Sheremeta Jan 2000

The Effect Of Self-Generated Information On The Plausibility Of Unlikely Autobiographical Events, Michele Dawn Sheremeta

UNLV Retrospective Theses & Dissertations

Plausibility of unlikely events was investigated using a pre-test and post-test of the Life Events Inventory (Garry, et al, 1996). Students (N = 55) at the University of Nevada, Las Vegas completed two sessions, including a plausibility scenario phase in which they were asked to describe four events chosen by the researcher from the pre-test on the basis of reported plausibility. Two of the events were rated low in plausibility and two were rated high in plausibility. Results indicate that plausibility ratings increase more for low rated items when participants are asked to describe those items than for control items …

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Determination Of Chlorine By Fluorescence Quenching, Yixin Wei Jan 2000

Determination Of Chlorine By Fluorescence Quenching, Yixin Wei

UNLV Retrospective Theses & Dissertations

Chlorine is used extensively in the chemical industry and for disinfection of drinking water. Many methods have been reported for the determination of chlorine species. Fluorescence quenching to determine chlorine is a promising method because of its high sensitivity and selectivity. This study focuses on development of a sulfonamide-based collection system for low levels of chlorine in air. Quantitation of chlorine is based on the quenching of the fluorescence signal observed when chlorine reacts with the fluorescent sulfonamide compound. Both a direct fluorimetric and a fluorescence-HPLC method have been established. Linear relationships are found between the fluorescence intensity or HPLC …

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Development Of A Gis-Based Framework For Evaluating Space And Parking Utilization, Jyothi S Tallapragada Jan 2000

Development Of A Gis-Based Framework For Evaluating Space And Parking Utilization, Jyothi S Tallapragada

UNLV Retrospective Theses & Dissertations

Large organizations such as corporations and universities typically occupy many buildings. A typical university space includes classrooms, laboratories, offices, and parKing The cost of adding additional space is significant. Therefore, effective management and utilization of the space is critical, especially to organizations that are growing. Growth may be measured in terms of the number of employees or students. As the number of employees and students increase, the number of trips to the campus also increase. This poses a growing pressure on the parking supply at the campus; The main objective of this thesis is to develop a framework for evaluating …

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Physiological Effects Of Progressive Relaxation In Trained Runners During Submaximal Treadmill Exercise, Thomas James Westendorf Jan 2000

Physiological Effects Of Progressive Relaxation In Trained Runners During Submaximal Treadmill Exercise, Thomas James Westendorf

UNLV Retrospective Theses & Dissertations

To determine the physiological effects of a one-week progressive relaxation protocol on exercise efficiency, five trained, male runners volunteered to participate in this study. The results of this study show that it is possible to reduce heart rate during progressive relaxation at rest, after one week of training. In addition, the results of this study indicate that although there was a significant reduction in minute ventilation during exercise, VO 2 did not change. These results suggests that there was no carry-over effect while exercising, therefore one week of progressive relaxation may not be long enough or an effective technique to …

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A Web-Based Finite Element Model For Heat Transfer, Trevor Allen Wilcox Jan 2000

A Web-Based Finite Element Model For Heat Transfer, Trevor Allen Wilcox

UNLV Retrospective Theses & Dissertations

A web based Java program has been developed to solve 2-D transient or steady state heat transfer problems. The numerical solver is based on the finite element method. The program is designed to work with both triangle and quadrilateral elements. In this thesis the development of the finite element method, using the Galerkin weighted residuals method, is reviewed and the technique applied to the advection-diffusion equation for the transport of temperature. The Java code and graphical interface used to implement the solver for use on the Internet is discussed.

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The Contribution Of Construction Materials To The Airborne Radon Concentrations In An Underground Facility, Robert Arthur Brounstein Jan 2000

The Contribution Of Construction Materials To The Airborne Radon Concentrations In An Underground Facility, Robert Arthur Brounstein

UNLV Retrospective Theses & Dissertations

The radon concentrations within fiber crete and the native material from the U1a Complex at the Nevada Tests Site, Nye County, Nevada, were quantified and compared to each other. Gamma spectroscopy measurements resulted in an average 222Rn concentration to be 0.038 +/- 0.0011 and 0.014 +/- 0.001 Bq g-1 for the native material and fiber crete, respectively. The emanation of 222Rn from the host material was measured via lucas cell scintillation. The average emanation coefficients were significantly higher for the cured fiber crete at 0.07 than for the native material at 0.005. While the cured fiber crete emanation coefficients matched …

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Cobalt Silicide Characterization, Donovan Alldredge Jan 2000

Cobalt Silicide Characterization, Donovan Alldredge

UNLV Retrospective Theses & Dissertations

Decreasing feature sizes of advanced ULSI (Ultra large-scale integrated) devices are driven by a desire for improve device performance and an increase in the number of devices on a single wafer. Small feature sizes cause increased resistance, which leads to degraded device performances. Silicides can reduce sheet resistance on poly-silicon lines and shallow junctions. The mostly widely accepted silicide process, Titanium Silicide (TiSi2), was adopted because of its low resistivity. Major limitations of TiSi2 include an inability to form on narrow poly-lines and gate shorting. Cobalt silicide is an alternative to TiSi2 due to its scalability (down to 0.065 mum …

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Participatory Resources And African American Voter Turnout: A Comparative Analysis Of The 1992 And 1996 Presidential Elections, Wesley Lavelle Barton Jan 2000

Participatory Resources And African American Voter Turnout: A Comparative Analysis Of The 1992 And 1996 Presidential Elections, Wesley Lavelle Barton

UNLV Retrospective Theses & Dissertations

This thesis examines differences between African American and White political participation. Drawing from the theoretical assumptions of pluralism and structural functionalism, the thesis conceptualizes that voter turnout can be evaluated by comparing socioeconomic, socioreligious, and political variables. In analyzing data from the 1992 and 1996 National Election Studies, the thesis reveals that Whites disproportionately have a higher rate of voter turnout as compared to African Americans. The data further suggest that socioreligious variables, such as church attendance, are powerful explanatory variables for encouraging voter participation by African Americans.

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Returns To Education In The Nevada Hotel Industry: Incentives For Education In Nevada, Alan Lee Beard Jan 2000

Returns To Education In The Nevada Hotel Industry: Incentives For Education In Nevada, Alan Lee Beard

UNLV Retrospective Theses & Dissertations

The present study estimates returns to education in Nevada based on ideas found in human capital theory to provide insight into the incentives facing students or potential students in Nevada. Four industry/location categories were constructed using data from the Current Population Survey: the Las Vegas hotel industry, the hotel industry elsewhere in Nevada, all other industries in Las Vegas, and all other industries elsewhere in Nevada. Results indicate that there is a lack of a significant wage penalty for less educated workers in the hotel industry, this effect seems further compounded in Las Vegas. Furthermore, there appear to be clearer …

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Comparison Of In-Place Versus Laboratory Binder Properties Of Asphalt, Maqdoom Mohiuddin Bukhari Jan 2000

Comparison Of In-Place Versus Laboratory Binder Properties Of Asphalt, Maqdoom Mohiuddin Bukhari

UNLV Retrospective Theses & Dissertations

In this study Hot Mix Asphalt binder properties from laboratory aged specimens were compared to binder extracted from field specimens. The properties were Absolute Viscosity, Penetration, Bending Beam Rheometer creep stiffness, Bending Beam Rheometer m-value and Direct Tension failure strain. The data for the study were collected from Clark County Public Works project files. The comparisons showed that: (1) there was no difference between the field and laboratory specimens for absolute viscosity, (2) there was a significant difference between the field and laboratory specimens for penetration, and (3) there was no conclusive evidence that the other three properties were the …

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