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2000

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A Comparison Of Ground Reaction Forces During Running And Form Skipping, Samuel Thomas Johnson Jan 2000

A Comparison Of Ground Reaction Forces During Running And Form Skipping, Samuel Thomas Johnson

UNLV Retrospective Theses & Dissertations

Following lower extremity injury an athlete may be able to walk within days, however they may not be capable of running for weeks or even months. During this time, the athletic trainer provides the athlete with progressions to running. One activity that has been used successfully in this progression is the form skip. It remains unknown why the athlete is capable of successfully performing the form skip before they can run; The purpose of this study was to investigate the ground reaction forces (GRF) during form skipping and running. Healthy subjects (N = 9) ran and skipped across the force …

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Pedogenic Gypsum Of Southern New Mexico: Genesis, Morphology, And Stable Isotopic Signature, John Grant Van Hoesen Jan 2000

Pedogenic Gypsum Of Southern New Mexico: Genesis, Morphology, And Stable Isotopic Signature, John Grant Van Hoesen

UNLV Retrospective Theses & Dissertations

Recent work in Canada and Iran (Dowuona et al., 1992 and Khademi et al., 1997a; 1997b) suggested a correlation exists between the delta18 O and deltaD ratios of the hydration water of pedogenic gypsum and the delta18O/deltaD ratios of meteoric water. However, a pedogenic origin for the sampled gypsum was not clearly supported and the results from this procedure were not compared to other paleoclimatic indicators. Therefore, the goals of this study were, (1) evaluate the genesis and soil morphology of pedogenic gypsum in and to semi-arid regions and (2) determine the applicability of pedogenic gypsum as a paleoclimatic indicator; …

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How Can The Experience Of The United States Casino Industry Be Adopted To South Korea?, Jongbo Kim Jan 2000

How Can The Experience Of The United States Casino Industry Be Adopted To South Korea?, Jongbo Kim

UNLV Retrospective Theses & Dissertations

The purpose of this study was to develop a framework for the casino establishment and development in South Korea through the examination and analysis of the U.S. casino industry. The secondary data of each case model was collected and analyzed. The findings showed that positive economic impacts of casino gaming are related with particular forms of casino operation and locations. Based on the research findings, a proper model of casino operation was suggested for South Korea and recommendations for future research were offered.

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The Effects Of Level Of Training On Employee Perceived Empowerment, Commitment And Job Performance, Pamela Dawn Backeberg Jan 2000

The Effects Of Level Of Training On Employee Perceived Empowerment, Commitment And Job Performance, Pamela Dawn Backeberg

UNLV Retrospective Theses & Dissertations

Billions of dollars are spent yearly on employee training. Yet employers often find it difficult to measure whether the training has any real effect. Due to the vast resources allocated to training, it is important to fully understand its impact. The purpose of this study was to determine the effects of level of training on employees' perceived psychological empowerment, commitment, and resultant job performance within the hospitality industry. Data were collected from 158 Air Force employees working on one of two military bases in the areas of food service, lodging, recreation, fitness, linen exchange, and mortuary affairs. Specifically, this research …

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Effects Of A 30-Minute Walk On Ground Reaction Forces During Walking With An External Load, Cheryl M Cardillo Jan 2000

Effects Of A 30-Minute Walk On Ground Reaction Forces During Walking With An External Load, Cheryl M Cardillo

UNLV Retrospective Theses & Dissertations

To investigate effects of a 30-minute walk on kinetics of walking with an external load, ten subjects performed five walking trials across a force platform for five conditions. Walking speed was 1.57m/s for all conditions. The first two conditions had subjects walk without (C1) and with (C2) backpack load. Subjects then walked on a treadmill at 1.57m/s for 30 minutes. At 10 minute intervals GRF data were collected. In comparing C1 and C2, dependent variables F1, F2, and Favg revealed increases of 10.45%, 13.68%, and 11.75% respectively (p < 0.01) indicating a mechanical response. No effect for time was observed for any variable tested. Therefore, the null hypothesis that load does not have an effect on vertical GRF was rejected. The null hypothesis that time does not have an effect on vertical GRF was not rejected. Overall, forces were elevated during load carrying, which may result in added stress on anatomical structures.

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Modeling The Diffusion Of Reactive And Nonreactive Solutes In Cores From The Cannikin Test Site, Amchitka Island, Alaska, Nicole Ann Brown Jan 2000

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 …

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A Study Of The Effect Of Computer/Internet Usage On Slot/Video Machine Players' Gambling Behaviors, Howook (Sean) Chang Jan 2000

A Study Of The Effect Of Computer/Internet Usage On Slot/Video Machine Players' Gambling Behaviors, Howook (Sean) Chang

UNLV Retrospective Theses & Dissertations

The Age of Information has changed the way we live since personal computers outsold TV sets, and the number of emails exceeded the number of regular stamped letters. For the last decade, the Las Vegas gaming market has changed toward not only the lavish gambling field that houses computerized slot/video machines and high speed Internet ready hotel rooms, but also a family entertainment resort and a major convention destination. These facts raised the question of how many computer/Internet literate gamblers are in Las Vegas, and whether it would influence on their slot/video machine gambling behaviors. This study found that 70% …

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Self-Stabilizing Border Gateway Protocol, Yu Chen Jan 2000

Self-Stabilizing Border Gateway Protocol, Yu Chen

UNLV Retrospective Theses & Dissertations

The Border Gateway Protocol (BGP) is currently the only inter-domain routing protocol employed on the Internet. It is designed to exchange the reachability information among the autonomous systems in the global Internet. The Internet routing instability (or the rapid fluctuation of the network reachability information) is an important problem facing the Internet engineering community. With the wide availability of the Internet, the Internet failures may not only interrupt the daily routines of countless end-users, but also generate millions of dollars of loss in e-commerce. Since BGP has an impact on routing in the global Internet, the design and implementation of …

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The Ban On Reason: Gays In The Military, Justin Cohen Jan 2000

The Ban On Reason: Gays In The Military, Justin Cohen

UNLV Retrospective Theses & Dissertations

This thesis seeks to explain how and why President Bill Clinton's 1993 attempt to drop the ban on homosexuals serving in the military was vehemently opposed by key stakeholders, even though empirical evidence strongly indicates that the ban is unwarranted and conflicts with America's democratic ethos; The theoretical framework for this paper is based on Roger Cobb and Charles Elder's writings on the political use of symbols. By manipulating cultural symbols, such as that of the masculine warrior, opponents of policy change forced Clinton into a compromise, the unsuccessful "don't ask, don't tell" policy. In torpedoing Clinton's effort, these antagonists …

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Tainted Perceptions: Liberal-Democracy And American Popular Images Of China, Thomas Laszlo Dorogi Jan 2000

Tainted Perceptions: Liberal-Democracy And American Popular Images Of China, Thomas Laszlo Dorogi

UNLV Retrospective Theses & Dissertations

The primary thesis of this study is that beginning with the pre-Tiananmen Square incident of 1989, American popular and institutional images of China focused on the reformist nature the government, but following the military crackdown in June 1989, this optimism dwindled and resulted in the creation of an ambivalent cross-cultural atmosphere toward the Chinese for the next half decade. When Chinese leaders decided to undertake military exercises in the Taiwan Strait in mid-1995, America's perception of the PRC swung even further in a distinctly negative direction; an event that marked the outset of a three year period during which Chinese …

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Factors That Influence Why Elderly Receive Influenza Immunizations, Lynn Marie Ferebee Jan 2000

Factors That Influence Why Elderly Receive Influenza Immunizations, Lynn Marie Ferebee

UNLV Retrospective Theses & Dissertations

The purpose of this study was to determine what variables influence elderly persons to obtain the recommended annual influenza immunization. The Health Belief Model provided the hypotheses that were tested in the comparative descriptive design study. The convenience sample (N = 339) consisted of two groups: those who received the influenza vaccination (n = 267) and those who did not receive the vaccination (n = 72). The questionnaire was designed from the Health Belief Model for influenza immunization. The five predictor variables: susceptibility, perceived severity and threat, perceived benefits and barriers, were significantly related to the outcome of receiving influenza …

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Modeling Of Gallium Nitride Molecular Beam Epitaxy Growth, Wenning Fu Jan 2000

Modeling Of Gallium Nitride Molecular Beam Epitaxy Growth, Wenning Fu

UNLV Retrospective Theses & Dissertations

III-V nitrides (GaN, InN and AlN) are intensely researched for optoelectronic applications spanning the entire visible spectrum. In spite of realization of commercial devices and advances in processing of materials and devices, the understanding of the processing and epitaxial growth of these materials are incomplete. In this study, a rate equation approach is proposed based on physically sound surface processes to investigate the molecular beam epitaxy growth of GaN using ammonia and ECR plasma source. A surface riding layer of Ga and ammonia or N plasma species are included in the model. The surface riding species are allowed to undergo …

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The May 4, 1970 Kent State University Shootings: Thirty Years Of Myths, Memorials And Commemorations, Mona Doreen Greenberg Jan 2000

The May 4, 1970 Kent State University Shootings: Thirty Years Of Myths, Memorials And Commemorations, Mona Doreen Greenberg

UNLV Retrospective Theses & Dissertations

On May 4, 1970, four students were killed and nine injured on the campus of Kent State University by the Ohio National Guard. This study examines and utilizes Braden's theory on myths to structure and analyze the rhetoric relevant to the myths, memorials and commemorations for the students killed and injured at Kent State University. This exploratory process focused on the events from 1970 until the present. The research was conducted through personal interviews with eyewitnesses, wounded victims, and friends of the deceased. The review of books, academic articles on social movements, newspaper and news magazine articles were studied to …

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Motivation And Negative Discretionary Effort Among Casino Slot Floor-Persons, Christian St. Claire Hale Jan 2000

Motivation And Negative Discretionary Effort Among Casino Slot Floor-Persons, Christian St. Claire Hale

UNLV Retrospective Theses & Dissertations

This study conducted an analysis of the working environment of casino slot floor-persons in four Las Vegas casinos. The floor-persons were asked to rank a selection of ten variables that may be important to their motivation and satisfaction at work. Their immediate supervisors were also surveyed to see whether they could correctly predict the job attributes the floor-persons considered most important. A review of general motivational theories, and operational specifics for the position of slot floor-person are presented; The results of the survey were compared with the results of similar studies on casino table games dealers, hospitality employees, and general …

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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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