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The Effects Of A School-Wide Peer-Administered Praise Intervention On Student Problem Behavior, Meredith L. Brent
The Effects Of A School-Wide Peer-Administered Praise Intervention On Student Problem Behavior, Meredith L. Brent
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This study evaluated the effects of a peer-administered positive behavioral support intervention on a school-wide problem behavior. Utilizing the differential reinforcement of incompatible behaviors method (DRl), peer monitors praised incidences of walking in order to decrease incidences of running in the hallway. A multiple baseline design across two hallway settings was used to evaluate the effect of peer monitors administering verbal praise and praise notes to students who demonstrated the desired behavior, walking. A lottery drawing in which recipients of praise notes received small prizes was conducted at the end of each week during the treatment phase. Results indicated that …
Temperature And Mold Size Effects On Density Gradients And Mechanical Properties In A Polyurethane Foam System, Dacia J Jackovich
Temperature And Mold Size Effects On Density Gradients And Mechanical Properties In A Polyurethane Foam System, Dacia J Jackovich
UNLV Retrospective Theses & Dissertations
Rigid polyurethane foams can be used as a thermal or vibration insulator and energy absorption material. They are often molded directly in place, where a smooth, thin skin forms between the mold and the cellular structure of the foam. Density gradients and the skin are shown to have an effect on the mechanical properties of the foam; This work will investigate the effects of processing temperature and mold size on the average density, density gradient, compressive modulus, and compressive strength, for a molded free rise, water blown polyurethane foam system. Four processing temperatures are used during foam fabrication: 25°C, 40°C, …
The Role Of Hotel Image And Image Congruence And Their Effects On Repeat Intention In The Hotel Industry, Grace S Lee
The Role Of Hotel Image And Image Congruence And Their Effects On Repeat Intention In The Hotel Industry, Grace S Lee
UNLV Retrospective Theses & Dissertations
The primary objective of this study was to empirically determine the relationship between hotel image, image congruence and repeat intention of Las Vegas Hotels. The sample (N = 211) included customers of various hotels in Las Vegas. The data was collected on the Las Vegas Strip through self-administered surveys and was analyzed using Correlation, Analysis of Variance, and Regression. As previous research indicated that a favorable image led to repeat patronage, the findings from this study determined a significant effect of hotel image and image congruence on repeat intention. Some other interesting findings included variations in the effects of hotel …
Effects Of Elevated Carbon Dioxide On Bromus Rubens And Nutritional Consequences For The Desert Tortoise, Kristen Marie Murphy
Effects Of Elevated Carbon Dioxide On Bromus Rubens And Nutritional Consequences For The Desert Tortoise, Kristen Marie Murphy
UNLV Retrospective Theses & Dissertations
The purpose of this research was to determine the effect of elevated atmospheric carbon dioxide conditions on forage quality for the desert tortoise (Gopherus agassizii), using a common diet component, Bromus rubens. Nitrogen balance was monitored for tortoises fed pelleted diets reflecting the nitrogen levels of Bromus plants grown under elevated and ambient CO2 conditions, with varying potassium levels (3.5% and 1.4% DWB). Nitrogen content in the diet approached a positive correlation with total diet intake (p = 0.11), and was positively correlated with nitrogen loss at alpha = 0.10 (p = 0.08) and yet remained positively correlated with nitrogen …
The Effects Of Exercise On Homocysteine Levels In Men And Women, Tracey Michelle Zuehlsdorff
The Effects Of Exercise On Homocysteine Levels In Men And Women, Tracey Michelle Zuehlsdorff
UNLV Retrospective Theses & Dissertations
A recent coronary risk factor, and one believed to be and important biochemical marker of Coronary Heart Disease, is elevated levels of serum homocysteine (Boushley et al., 1995; Malinow et al., 1994; Malinow et al., 1999; Nygard et al., 1995; Stampfer et al., 1992). Serum homocysteine levels above 10 umol/L are considered elevated. There are several unalterable factors, which result in the elevation of homocysteine such as heredity, age, and gender. There are other factors that are alterable such as diet and possibly exercise. The purpose of the study was to determine if a 12-week daily progressive exercise program reduced …
A Study Of The Effects Of Lithium Perchlorate On Poly(Ethylene Oxide), (Peo) Melt Dynamic Behavior Using Fabry-Perot Interferometry, Radoslav Boykov Bogoslovov
A Study Of The Effects Of Lithium Perchlorate On Poly(Ethylene Oxide), (Peo) Melt Dynamic Behavior Using Fabry-Perot Interferometry, Radoslav Boykov Bogoslovov
UNLV Retrospective Theses & Dissertations
Poly(ethylene oxide)/lithium perchlorate (PEO/LiClO4) complexes are widely studied as a prototype solid polymer electrolyte in rechargeable lithium-polymer batteries. Characterizing the structure and dynamics of the system in its molten state is important for understanding the role of the polymer environment in lithium ion transport and conductivity. We implement a fiber-optic coupled Fabry-Perot interferometer to investigate the electrolyte elastic properties and structural response times, which are both related to the intrachain local mobility and therefore to ion diffusion. We propose a simple and inexpensive fiber-optic experimental design combining two experimental techniques, Fabry-Perot interferometry and photon correlation spectroscopy. Our tests and evaluation …
Overcrowding And Its Effects On Inmate Violent Behavior In Prison, John C Devaney
Overcrowding And Its Effects On Inmate Violent Behavior In Prison, John C Devaney
UNLV Retrospective Theses & Dissertations
Prisons in the United States are overcrowded. The problem of overcrowding has worsened as the years have gone on, especially since the war on drugs and determinate sentencing, have become a part of the American Justice System. This overcrowding has led to concerns about what effects it might have on those that are incarcerated. This study looks at the effects this overcrowding has on inmate violent behavior. Prison administrators are charged with providing a safe and secure atmosphere for inmates to serve the time that they are sentenced to by the states and federal governments. If this overcrowding is creating …
Study Of Geometry Effects On Local Corrosion Rates For Lbe Loop, Chao Wu
Study Of Geometry Effects On Local Corrosion Rates For Lbe Loop, Chao Wu
UNLV Retrospective Theses & Dissertations
Corrosion is an extremely important issue in nuclear cooling system applications. Many scientific and engineering efforts have contributed to the research of finding an ideal material, which has resistance to corrosive Lead Bismuth Eutectic (LBE). A Delta Loop was designed and constructed in Los Alamos National Lab (LANL) to obtain the experimental data. This loop is a multi-section closed system that differs in diameter from one part to another. As a result, an intensive study on the geometry effect is necessary and valuable. In this thesis, this problem was simulated by commercial software STAR-CD. Results provide a good prediction where …
Effects Of A Heat Acclimation Program On Physiologic And Psychological Responses To Work And Heat While Wearing Fire Ensemble, Dale Anthony Branks
Effects Of A Heat Acclimation Program On Physiologic And Psychological Responses To Work And Heat While Wearing Fire Ensemble, Dale Anthony Branks
UNLV Retrospective Theses & Dissertations
Heat acclimation program effects on rectal temperature and heart rate during walks in the heat wearing structural fire protective ensemble (FE) were examined. On six consecutive days, male subjects (N = 7) walked 30 minutes on a treadmill (46--53% V˙O2peak) within a 40 +/- 2°C, 20--22% r.h. environment, wearing FE. Rectal (Trec) mean skin (Tsk), and rectal-skin temperature gradient (T rec-Tsk), heart rate (HR), oxygen uptake (VO2), minute ventilation (VE), rating of perceived exertion (RPE), rating of thermal discomfort (RTD), sweat rate and Na+ and K+ were assessed daily. Significance (p < 0.05) was determined by one way repeated measures ANOVA. Average heart rate, and daily sweat Na+ and K+ concentrations were the only variables observed to decrease significantly during the six days. These changes however were small and represent a questionable practical benefit. Therefore, a six day heat acclimation program during summer months provides no benefit to work in the heat while wearing FE.
The Effects Of A Personal Accountability And Personal Responsibility Model On Urban Elementary Student Positive Social And Off-Task Behaviors, Daniel Wesley Balderson
The Effects Of A Personal Accountability And Personal Responsibility Model On Urban Elementary Student Positive Social And Off-Task Behaviors, Daniel Wesley Balderson
UNLV Retrospective Theses & Dissertations
In the past few decades, the challenge of violent and disruptive behaviors among our children and youth has been on the rise. This study provides one intervention model focused on personal accountability and personal responsibility designed to reduce off-task and disruptive behavior in school settings, and designed to increase positive social behaviors among children and youth. A multiple treatment ABAD, ACAD, ADA, control behavior analysis design was implemented across four distinct elementary physical education classes matched for participant and setting similarity. Measures included number of occurrence and percentage of class time across Teacher Management, Student Leadership, Passive and Disruptive Student …
Cytotoxic Effects Of Electron Carriers Are Inhibited By Hsp27 In Breast Cancer Cell Lines, Yvonne Carina Giraud
Cytotoxic Effects Of Electron Carriers Are Inhibited By Hsp27 In Breast Cancer Cell Lines, Yvonne Carina Giraud
UNLV Retrospective Theses & Dissertations
Human breast cancer cell lines DC4, DB46, MCF-7, MDA-MD-435 were incubated with cytochrome c at 5 x 10-7M, 5 x 10 -6M and 5 x 10-5M. Human colon cancer cell line, RKO, and normal human lung fibroblast cell line, HFL1, were incubated with cytochrome c at 5.6 x 10-8M, 5.6 x 10-7M and 5.6 x 10-6M. Cytochrome c exposure showed a dose response including cell death in breast cancer cell lines. RKO showed no sensitivity to cytochrome c exposure at any of the concentrations and HFL1 showed sensitivity only at the highest concentration. FAD, NADH, Q10 and ATP were incubated …
Effects Of Blood Vessel Permeability On Mechanical Properties Of Bone Under Micro-Gravity Conditions, Robert L Drollinger
Effects Of Blood Vessel Permeability On Mechanical Properties Of Bone Under Micro-Gravity Conditions, Robert L Drollinger
UNLV Retrospective Theses & Dissertations
Loss of bone mass is one important physiological change observed in astronauts after medium and long-term exposure to microgravity conditions. The objective of the current study is to test the hypothesis that loss of bone mass under microgravity can be inhibited if the same micro-force distribution under earth gravity (body weight) is achieved by increasing the blood vessel permeability to increase the transcortical interstitial fluid flow. A method of exposure to bio-frequency spectrum (BFS) light (infrared to micrometer wavelength) was used to increase the blood vessel permeability. We tested the hypothesis by examining the bone mechanical properties (Young's modulus) of …
The Effects Of Environmentally Relevant Doses Of Perchlorate (Clo(4)(-)) On Rana Pipiens Metamorphosis And Development, Andrea N Golli
The Effects Of Environmentally Relevant Doses Of Perchlorate (Clo(4)(-)) On Rana Pipiens Metamorphosis And Development, Andrea N Golli
UNLV Retrospective Theses & Dissertations
Perchlorate not only blocks the body's ability to incorporate iodine into T3 and T4 hormones through the sodium iodine symporter system, but also depletes the thyroid glands' internal stores of iodine. Many of the steps that regulate metamorphosis in amphibians are also triggered by thyroid hormones therefore we investigated the ability of perchlorate to interfere with the development and metamorphosis of Rana pipiens . Aquaria containing concentrations of 40 ppb, 400 ppb, and 4000 ppb perchlorate with a 0 ppb perchlorate control as well as a magnesium control (since magnesium perchlorate was used) to evaluate the growth and development of …
Effects Of Classwide Peer Tutoring (Cwpt) On Social Interactions Of Children With And Without English Proficiency, Yaoying Xu
UNLV Retrospective Theses & Dissertations
Learning and Education occur in social contexts. The quality of children's peer relationships is an important indication of children's current and later social adjustment. Children with peer problems tend to experience higher levels of loneliness and other undesirable affective consequences, including social dissatisfaction and worrying about peer relations. Because of the limited language proficiency and cultural and ethnic differences among children with LEP, some of their social behaviors are considered inappropriate by their non-LEP teachers and peers. On the other hand, children with LEP may feel that they do not fit in a group or class activity. As a result, …
The Effect Of Ambient Scent On Affiliation Behaviors And Social Interactions, Dina Marie Victoria Zemke
The Effect Of Ambient Scent On Affiliation Behaviors And Social Interactions, Dina Marie Victoria Zemke
UNLV Retrospective Theses & Dissertations
The intent of the study was to explore if the focus group and the meetings industries can provide meeting environments that would be more conducive to communication and more productive. The concepts tested in this study are based in environmental psychology, or the study of how the physical environment affects individual and group behavior within the environment. Past studies have examined various ambient conditions and other aspects of the physical environment and their effects on retail environments. However, the characteristics that set services businesses apart from product marketing and retail businesses require new techniques to evaluate the effect of the …
Examining The Effect Of Teaching Method And Learning Style On Student Course Achievement For Hospitality Students, Mehmet Erdem
Examining The Effect Of Teaching Method And Learning Style On Student Course Achievement For Hospitality Students, Mehmet Erdem
UNLV Retrospective Theses & Dissertations
This study attempts to bridge the gap between effective teaching and empirical research on hospitality education by bringing a learning-based theoretical framework and a validated assessment tool together within a research setting. A specific objective of the study was to determine the effect of students' learning styles on student course achievement. The author examined the effect of learning styles and instructional strategies on student course achievement in consideration with students' GPA, and the influence of demographic variables including gender, age, class standing, student classification as being either international or domestic, and students' industry experience. Additionally, the relationship between students' overall …
Effects Of Basalt Intrusion On The Multi-Phase Evolution Of The Jemez Volcanic Field, New Mexico, Leigh Justet
Effects Of Basalt Intrusion On The Multi-Phase Evolution Of The Jemez Volcanic Field, New Mexico, Leigh Justet
UNLV Retrospective Theses & Dissertations
Analysis of 40Ar/39Ar age, major/trace element geochemical, and Nd and Sr isotopic data indicates that the Jemez volcanic field, a long-lived continental volcanic center located at the intersection of the Rio Grande rift and Jemez Lineament in northern New Mexico, evolved in a complex two-phase manner. The Jemez volcanic field evolved two ∼3.8 m.y.-long pulses of volcanic activity separated by a ∼2.2 m.y. period of eruptive quiescence. Each eruptive phase is composed of: (1) an initial ∼2 Ma period of intense volcanic activity dominated by basaltic and andesitic compositions that formed by variable amounts of mixing between lithospheric mantle-derived basalt …
An Examination Of The Effect Of Ethical Climate On Ethical Optimism And Organizational Commitment, Clark S Kincaid
An Examination Of The Effect Of Ethical Climate On Ethical Optimism And Organizational Commitment, Clark S Kincaid
UNLV Retrospective Theses & Dissertations
The issue of unethical behavior in business is a serious concern with practitioners and researchers. The restaurant industry in particular, is vulnerable to unethical actions due to a variety of variables including the availability of large sums of cash, the presence of alcohol, and the late hours of operation. There is a paucity of ethical research in the restaurant industry and this study contributes to that body of knowledge; In this study, the effect of ethical climate in the restaurant industry on ethical optimism and organizational commitment was examined in ten restaurants. The results show that management actions have significant …
The Effect Of Video Instruction On Social Interactions Of Children In The Inclusive Preschool, Catherine Doyle Lyons
The Effect Of Video Instruction On Social Interactions Of Children In The Inclusive Preschool, Catherine Doyle Lyons
UNLV Retrospective Theses & Dissertations
Social competence is an important consideration for early childhood education. Furthermore, young children with disabilities are increasingly being placed in community preschool programs therefore necessitating strategies to increase the number and quality of social interactions between young children with and without disabilities. Beginning at a very young age nearly all children have access to television, VCR or DVD, and cable or satellite. Therefore, media may serve as a vehicle to increase the number and quality of social interactions between young children with and without disabilities; This study had two purposes. The first was to investigate the effect of scripted video …
The Effects Of Enron, Taniel Khamo
The Effects Of Enron, Taniel Khamo
Honors Capstones
The purpose of this study is to examine the effects of Enron's collapse and the long-term implications of its failure. The areas affected by the company's demise are: society's perception of business, energy industry, large corporations, and regulation. One way the energy company was made apparently profitable was through a constant push for deregulation of the energy market. In 2000 Enron reported revenue of $100.8 billion, making them number seven on the Fortune 500 list of the largest companies in the country. It is now realized that Enron's accomplishments were due mostly to their misrepresentation of financial documents. This misrepresentation …