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Filtration And Growth Rate Of Lake Mead Quagga Mussels (Dreissena Bugensis) In Laboratory Studies And Analyses Of Bioaccumulation, Carolyn Louise Link

UNLV Theses, Dissertations, Professional Papers, and Capstones

In January of 2007, Quagga Mussels (Dreissena bugensis) were identified in Lake Mead, Nevada. An aquatic invasive species, these mussels can significantly alter ecosystems. This study sought to quantify three ecological traits of the species through a series of laboratory experiments and analyses, providing information both for comparison with Dreissena in other locations, as well as for limnologic management decisions. Filtration rate of quagga mussels was quantified using algal strains and natural seston. Two strains of green algae, Nannochloris and Scenedesmus were used to determine mussel filtration rates with a spectrophotometer. Quagga filtration rates of collected Lake Mead seston were …

When Is A Good Deal Bad For Business? An Exploratory Study Of Room Rates Highlighting The Practice And Effects Of Discounting Room Rates, Gwen Williams

UNLV Theses, Dissertations, Professional Papers, and Capstones

Through the analysis of available literature, this exploratory study highlights the practice and effects of discounting room rates within the hospitality industry. This study discusses methods used for setting room rates, rate integrity and brand integrity. At its conclusion, this exploratory study suggests who should and who should not discount room rates and it conveys methods that can be used for discounting room rates without loss of a target market and/or without financial loss.

Team-Based Learning: Engagement And Accountability With Psychometric Analysis Of A New Instrument, Heidi Ann Mennenga

UNLV Theses, Dissertations, Professional Papers, and Capstones

With calls for transformation, innovation, and excellence in nursing education from national bodies of nursing, nurse educators must determine the best possible teaching strategies to meet educational standards. Team-based learning, an innovative teaching strategy, offers educators a structured, student-centered learning environment and may be more effective than current teaching pedagogies in meeting the needs of nurse educators.

The purpose of this study was to (a) examine differences in student engagement between baccalaureate nursing students taught using team-based learning and those taught using traditional lecture, (b) examine how levels of engagement affected examination scores, (c) examine potential differences in student examination …

Adjustment To Correctional Confinement: Investigating The Correlates Of Violence And Disorder In A Jail Environment, Fred W. Meyer Iii

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study examines the individual- and institutional-level variables that are correlated with violence and disorder within a jail facility. Previous research indicates that deviant behavior is one of the main challenges that negatively impacts the safe and effective management of correctional facilities. While many studies have been conducted on prison populations, few studies have focused upon jail populations. Using official institutional data, this study explores the factors associated with general infractions and violent misconduct among a stratified random sample of inmates (n=447) incarcerated during a one year period in a large county jail facility. The logistic regression and conjunctive analyses …

The Impact Of Individual Decision Making On Campus Sustainability Initiatives, Aurali Ella Dade

UNLV Theses, Dissertations, Professional Papers, and Capstones

Institutions of Higher Education (IHEs) have increasingly committed to become more sustainable in recent years. Despite this commitment, academic publications in the sustainability field assert that progress has been slower at IHEs than expected and that most IHEs have found sustainability initiatives difficult to implement. Comprehensive sustainability initiatives require cooperation from a broad set of constituents with diverse and sometimes conflicting goals. Creating a sustainable IHE also requires changes in both physical infrastructure and individual behavior. Any number of institutional factors can advance or limit progress towards these objectives.

Previous investigations have assessed individual case studies, compared IHEs in a …

Reflective Practice: The Teacher In The Mirror, Celes Raenee Rayford

UNLV Theses, Dissertations, Professional Papers, and Capstones

With the enactment of the No Child Left Behind Act of 2001, administrators have faced extreme pressure to provide professional development to teachers to enhance their skill and knowledge base, make school improvements, and increase student achievement. Research indicated that critical reflection leads to lasting school change and professional growth of teachers. However, few studies examined reflection using the principles of adult learning and reflective practice theory. In this study, this perspective was explored using three distinct ways of reflecting in combination with various reflective practice models.

The purpose of this study was to describe the perceptions of elementary administrators …

Outcomes Associated With A Unlv Outdoor Adventures' Women's Wilderness Canoe Trip, Joanna Leigh Libby

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study was to examine the outcomes associated with a short term women's canoe trip. Short debriefings, field observations and in-depth interviews were used to capture women's experiences and the processes that take place to achieve these experiences.

Eight females from the University of Nevada, Las Vegas participated in a three day canoeing trip led by the University's outdoor program. Their ages range from 18 to 40 and are all affiliated with the University of Nevada, Las Vegas in some way.

Results from the participant's interviews highlighted four major themes. These themes are the disengagement from traditional …

A Secure On-Line Credit Card Transaction Method Based On Kerberos Authentication Protocol, Jung Eun Kim

UNLV Theses, Dissertations, Professional Papers, and Capstones

Nowadays, electronic payment system is an essential part of modern business. Credit cards or debit cards have been widely used for on-site or remote transactions, greatly reducing the need for inconvenient cash transactions. However, there have been a huge number of incidents of credit card frauds over the Internet due to the security weakness of electronic payment system. A number of solutions have been proposed in the past to prevent this problem, but most of them were inconvenient and did not satisfy the needs of cardholders and merchants at the same time.

In this thesis, we present a new secure …

Space Use And Mating Activities In The Speckled Rattlesnake, Xavier Glaudas

UNLV Theses, Dissertations, Professional Papers, and Capstones

Our understanding of space use variation in response to the temporally varying importance of specific resources is poorly understood in reptiles, because spatial studies are rarely placed into an explicit ecological and behavioral context. I examined how space use differed between the mating and post-mating seasons, and how this variation related to three important resources, mating partners, food, and refuge, in an adult population of the speckled rattlesnake Crotalus mitchellii in the Mojave Desert of southwestern North America. During the mating season (late April to early June), Crotalus mitchellii increased distance traveled per unit time, because wide-ranging behavior likely enhances …

The Role Of Transcription In Stationary Phase Mutagenesis In Bacillus Subtilis, Holly Anne Martin

UNLV Theses, Dissertations, Professional Papers, and Capstones

Stationary phase mutagenesis, also known as stress-induced or adaptive mutagenesis, is defined as the accumulation of mutations during conditions of no net growth or conditions of stress. This process has been implicated in acquiring antibiotic resistance and evasion of host immune responses in microbial pathogens and in the generation of mutations that lead to neoplasia in animal cells. Previous work has shown that defects in DNA synthesis and repair systems contribute to the formation of adaptive mutations; however the role of transcription in the accumulation of mutations is still being examined. It is speculated that transcriptional derepression leads to an …

The Efficacy Of Emotional And Instructional Support (Eis) Training And Consultation On Head Start Teacher-Child Interactions, Rory Brown Sipp

UNLV Theses, Dissertations, Professional Papers, and Capstones

There is an increased need for quality in the field of early care and education and, teachers interactions with his or her students are the catalyst for providing and ensuring quality within early childhood environments (La Paro, Pianta, & Hamre, 2008). The study examined the effect of training and consultation on Head Start teacher and child interactions as measured by the Classroom Assessment Scoring System, also known as the CLASS.

Twenty-one Head Start teachers located in Southern Nevada served as participants in the study where non-threatening and evidence based training and consultation was provided over six weeks. Trainings were provided …

Development Of A Functional Mri Olfactory Protocol, Jeremy Mangum

UNLV Theses, Dissertations, Professional Papers, and Capstones

Many people can spend a few days with an acute form of sinusitis, a stuffy nose, or sinus congestion that inhibits their ability to smell, but there are fourteen million Americans over the age of fifty that suffer from some form of chronic olfactory dysfunction. Some neurological disorders such as Parkinson's disease and Alzheimer's disease have demonstrated that olfactory dysfunction is a frequent and early sign. While these diseases have no known cure, there are medicines that exist to slow the progression of such debilitating illnesses. By identifying such diseases in their early stages, we can improve the quality of …

The Effects Of Annual Pass Holders On The Disneyland Resort Infrastructure, Sean B. Keliiholokai

UNLV Theses, Dissertations, Professional Papers, and Capstones

Since the inception of Disneyland, the growing number of loyal guests, expansion of the theme parks and new entertainment elements has drawn and increased park attendance. With that being said, expansions are continuously taking place and thus the price per ticket increases. As the ticket prices continue to increase, numerous amount of guests look at other options such as annual passes as a means of getting the most for their money. As funds for families become more of a concern, the need for local supplemental activities is a key driver. The ever expanding base of Annual Passholders (AP), who is …

The Value Of An Associate Degree In Culinary Arts From A Public Postsecondary School Versus A Private School, John F. Maas

UNLV Theses, Dissertations, Professional Papers, and Capstones

Through an analysis of tuition data, this paper explores the difference in cost of an associate degree in culinary arts from public and private postsecondary schools. The average cost of the associate degree in culinary arts at private school is more than 500% higher than the average cost at the public schools. This disparity in cost raises a question of value. Is the degree from a private school worth more to justify the additional cost? The literature review established the use of post-graduation earnings as an accepted measure of the value of the degree. Surveys conducted by the American Culinary …

A Guide For Small Meetings In Las Vegas, Linda Dorothy Mcilveen

UNLV Theses, Dissertations, Professional Papers, and Capstones

This paper is a deliverable guide for successful meeting in Las Vegas. The guide was created through an industry and academic review of literature. There are nine segments that are explored in order to encourage small associations and groups to hold their meetings, conventions and conferences in Las Vegas. The segments in the paper also provide information for non-professional and inexperienced meeting planners. The suggestion for future research is an experimental design process that tests the use of registration management systems and their value to small meetings.

Immigration And The Hospitality Industry, Joseph M. Rasic

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study is to correlate the research of immigration reform and the potential impact on the hospitality industry. For over a century, numerous debates and policies have been discussed and developed addressing the issue of immigration. The history of immigration policy shows that legislation was passed to address the current concerns for each of the past several decades, but additional changes are constantly needed in order to support the continued growth and changes of the nation. History also shows that some of the laws that were created to control immigration actually initiated larger issues, which led to …

Equipping Women For Food Service Sales, Robert Stegall-Smith

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this paper is to develop a training program which will equip women for success in foodservice sales. It will determine if women have greater sales skills in the current business environment. Research will be done to determine what role product and operations knowledge plays in sales success in addition to natural ability. Finally based on the findings it will be determined in what format to deliver the training

Application Of Modern Hospitality Management Practices In China's Time-Honored Restaurants, Junfeng Li

UNLV Theses, Dissertations, Professional Papers, and Capstones

“Time-honored” catering enterprises in China are currently facing severe tests as well as a rare opportunity to grow in market competition. Among catering businesses and those in academic circles, the common concern is how to take opportunities and use them to grow quickly. This study will use the SWOT model to analyze the present situation of China’s time-honored catering enterprises and will examine catering management techniques to find the optimum operational mechanisms to assist them. This will promote survival and growth of time-honored catering enterprises and provide a theoretical basis for the Chinese government's relevant policy decisions. The purpose of …

Theoretical And Computational Study Of Time Dependent Scattering On A 2d Surface, Michael Sohn

UNLV Theses, Dissertations, Professional Papers, and Capstones

The quantum mechanical treatment of the elastic scattring of atoms from a crystal surface provides valuable information, such as surface properties and gas-surface interaction potentials. However, since it is based on the stationary state solution, it does not provide the details of the scattering process in the neighborhood of the surface, especially when atoms are physically adsorbed. In this thesis, the time evolution of the scattering process is treated in 2D with a model potential, V(x, z) = -|g|δ(z) + λδ(z)cos(2πx/a), using the Gaussian wave packet approach. The focus is on the case where the Gaussian wave packet makes a …

Photon Density Of States Of 47-Iron And 161-Dysprosium In Dyfe3 By Nuclear Resonant Inelastic X-Ray Scattering Under High Pressure, Elizabeth Anne Tanis

UNLV Theses, Dissertations, Professional Papers, and Capstones

The dual partial phonon density of states (DOS) from two different Mossbauer isotopes (161Dy and 57Fe) in the same material (DyFe3) was successfully measured using the nuclear resonant inelastic x-ray scattering (NRIXS) technique at high pressure. Nuclear inelastic scattering measurements yield an in-depth understanding of the element-specific dynamic properties. The Debye temperatures, the Lamb-Mossbauer factor (fLM), and the vibrational contributions to the Helmholtz free energy (Fvib), specific heat (cV ), entropy (Svib) and internal energy (Uvib) are calculated directly from the phonon density of states.

Ælfric And The Orient, Jacqueline Geaney Elkouz

UNLV Theses, Dissertations, Professional Papers, and Capstones

This dissertation examines why Ælfric's choice of texts included in his Lives of Saints differs so radically from contemporaneous lists of saints venerated by Anglo-Saxons. Writing between 992 and 1002, while England faced a second wave of invasions from the North, Ælfric selected saints predominantly from the Orient.

A close analysis of several of these lives reveals four major agents of persecution: Paganism, Judaism, Heresy, and Satan. Faced with such trials, most of the saints included in Ælfric's Lives commonly suffer a violent death and always stand firm in their faith in the face of persecution. For Ælfric, the orthodox …

Finite Strain Studies Of Single Crystal Fe3p Under High Pressures, John William Howard

UNLV Theses, Dissertations, Professional Papers, and Capstones

Fe3P (synthetic schreibersite) is a phosphide occurring in iron alloys. Phosphorousis often considered an undesired impurity causing brittleness. Conversely, in some cases the addition of iron phosphides to certain materials is beneficial (e.g.properties of certain frictional materials are enhanced). In terrestrial rock, we do not find Fe3P, although (Fe;Ni)3P (natural schreibersite) is found in nearly all iron-containing meteorites. In this project, we examine the unit cell parameters of Fe3P as function of pressure and derive the respective axial and bulk compressibilities. Both Vinet and Birch-Murnaghan formulations were used to relate pressure and unit cell volume, and a comparison of each …

From The Valleys To The Mountains: The Biographic History Of Antelope Squirrels, Bats, And Chipmunks In Western North America, Stacy James Mantooth

UNLV Theses, Dissertations, Professional Papers, and Capstones

Genetic differentiation within and between species often coincides with significant geological or climatic changes that have shaped the sizes and locations of their geographic ranges and altered the connectivity between populations over time. Across western North America, many endemic taxa experienced high levels of initial divergence associated with geological transformations of the Neogene, with subsequent diversification and geographic structuring of populations associated with climatic changes during the Quaternary. As such, we can use a combination of molecular markers and genetic analyses to effectively examine the evolutionary and biogeographic histories of populations, species, and regional biotas whose signatures of differentiation are …

Phylogeography And Landscape Genetics Of The Flammulated Owl: Evolutionary History Reconstruction And Metapopulation Dynamics, Markus Mika

UNLV Theses, Dissertations, Professional Papers, and Capstones

Taxa occur across ever changing landscapes on different spatial and temporal scales. Choosing the appropriate scale for collecting data and drawing inferences is critical for understanding the history of a species and its populations. Here, I describe research in which I investigated phylogenetic patterns and population genetics for Flammulated Owls (Otus flammeolus) representing 14 localities from throughout the species' distribution, and compared regional landscape features with the distribution of genetic diversity. This small, insectivorous owl migratory (Family Strigidae) breeds in western conifer and deciduous dry forests of the mountains from southern Mexico to British Columbia. Sedentary populations are found in …

An Examination Of The Relationship Between The Hypersexual Environment Of Las Vegas And Forcible Rape, Lisa Ann Dooley

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study was to examine whether rates of forcible rape in Nevada are high, possibly a side effect of living in a hypersexual city. The study will explore whether these rates compare to other cities of the same size that are tourism focused and whether rates of forcible rapes are higher in counties without prostitution than with prostitution. This paper will also consider rates of sexual victimization among undergraduate students at the University of Nevada, Las Vegas, University of British Columbia, and Simon Fraser University. Lastly, the study will consider whether the hypersexual nature of the city …

Assessing The Effect Of Simulation Models On Systems Learning In An Introductory Environmental Science Course, Heather J. Skaza

UNLV Theses, Dissertations, Professional Papers, and Capstones

While there is plenty of anecdotal evidence within the systems dynamics community supporting the use of systems simulations in the classroom to improve student understanding, there is little published, controlled, experimental research. This paper describes the results of a paired experiment testing the effect of using system dynamics simulations to increase systems understanding in an introductory environmental science course. We believed that the students using the systems simulations would demonstrate a greater systemic understanding of environmental issues than those who did not.

We conducted an experiment during the fall semester of 2009, with 304 students enrolled in four sections of …

Timeshare: Intervals Vs. Points, Monica Colvin

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this paper is to explore the different usage options associated with timeshare and why a company would choose to convert their current product form.

An Analysis Of Restaurant Food Safety Violations: Human Factors, Non-Human Factors, And Food-Borne Illness, Jai Choung

UNLV Theses, Dissertations, Professional Papers, and Capstones

An estimated 76 million food-borne illnesses occur in the United States each year, causing 325,000 hospitalizations and 5,000 deaths, according to the U.S. Food and Drug Administration. Food safety is an increasingly important topic to governmental food regulators, not only in trying to reduce the number of illnesses from contaminated food. Governmental regulators also are becoming aware of the vulnerability of the food supply chain as a target for bioterrorism. Recommendations have been developed to protect the U. S. food supply from terrorism, but little of the research and recommendations relate to the food-service level.

Eighty percent of reported cases …

Sales Motivation & Morale During Extreme Times Of Change, Cheri L. Fairchild

UNLV Theses, Dissertations, Professional Papers, and Capstones

According to the National Bureau of Economic Research, the United States entered a recession in December 2007. (Woodworth, 2010). The hospitality industry has been hit extremely hard by this economic downturn. With clients cutting costs, there is less business to be had by the same, and in many cases, a growing number of hotels. At the same time, hotels are forced to cut costs in any number of ways to remain viable. This may mean scaling back services, staffing reductions and cuts in employee benefits. However, there is a point where a company simply cannot cut anymore without doing more …

How Stereotyping Affects Customer Service, Nicole Ruiseco

UNLV Theses, Dissertations, Professional Papers, and Capstones

This paper presents different ways in which stereotyping affects service in the hospitality industry. Specifically the food service industry, this sector is where interaction between guest and employee is the entire experience. Stereotyping a guest happens in a number of different ways. The negative stereotypes that are associated with guests are what effects the type of service a guest receives. When a guest is unhappy with customer service the point of the whole experience is diminished. Finding a way in which to reduce the amount of negative stereotypes associated with guests is critical in improving service and guest satisfaction. Having …