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Articles 1 - 14 of 14
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Uncertainty In Recharge From Subsidence Craters At Frenchman Flat, Nevada Test Site: Impacts Of Initial And Boundary Conditions And Media Properties, David Matthew Ely
Uncertainty In Recharge From Subsidence Craters At Frenchman Flat, Nevada Test Site: Impacts Of Initial And Boundary Conditions And Media Properties, David Matthew Ely
UNLV Theses, Dissertations, Professional Papers, and Capstones
The Nevada Test Site has over 400 subsidence craters formed by the collapse of overlying rock following underground nuclear tests. Under natural conditions, infiltration and recharge would not be considered likely due to infrequent precipitation events and extreme evapotranspiration. Crater U5a in Frenchman Flat was chosen for study because it intercepts significantly more drainage than surrounding craters. Vadose zone modeling was conducted to test the sensitivity of water movement to boundary and initial conditions. The effects of ponding depth was negligible but depth of wetting front movement was highly dependent on the lateral extent of the ponds. The model was …
Democracy Behind Barbed Wire: Examining The Political Culture Of Japanese American Evacuees, Allen Atkinson
Democracy Behind Barbed Wire: Examining The Political Culture Of Japanese American Evacuees, Allen Atkinson
UNLV Theses, Dissertations, Professional Papers, and Capstones
This paper explores the relationship between culture and political behavior through an investigation of those Japanese Americans who were denied due process and imprisoned during World War Two simply for being of Japanese descent. Military necessity was the reason cited for the government's action, although racism, war hysteria and economic competition also played a major role.
At the time there was a general belief among Caucasian Americans that the Japanese in America had avoided Americanization and could not be trusted to participate in democratic processes. It was suggested that their political and civic culture was an obstacle to the achievement …
Vegetation Analysis: A Graphical Analysis Of Plant Succession In Desert Communities Affected By Fire, Jeff Lantow
Vegetation Analysis: A Graphical Analysis Of Plant Succession In Desert Communities Affected By Fire, Jeff Lantow
UNLV Theses, Dissertations, Professional Papers, and Capstones
The Mojave Desert is affected by fire every year. With each fire comes the removal of old growth and, in its place, new growth – consisting primarily of those species which thrive in disturbed areas. The focus of my research is to look at plant communities that have been disturbed by fire, and examine the successional pathway of these disturbed environments. The seven environments I analyzed were burned within the last twenty years and are found in the Coleogyne ramosissima ecotone throughout the Spring Mountain range near Las Vegas, Nevada. The data was collected with randomly chosen circle plots in …
Water Conservation In The Las Vegas Valley, Judith M. Keir
Water Conservation In The Las Vegas Valley, Judith M. Keir
UNLV Theses, Dissertations, Professional Papers, and Capstones
This thesis deals primarily with residential use of water in the Las Vegas Valley, an arid climate located in the Mojave Desert, and whether the education of people living here has any bearing on whether or not they conserve water. Many of the residents of the Las Vegas Valley have moved from other areas of the country, and perhaps are not aware of the fact that there is a limited supply of water available to the Valley. I believe that people are not necessarily wasteful, and that they would want to conserve water, if they were aware that conservation and …
Lead Shot Concentration In Soil At The Overton Wildlife Management Area, Nevada, George R. Bertoty
Lead Shot Concentration In Soil At The Overton Wildlife Management Area, Nevada, George R. Bertoty
UNLV Theses, Dissertations, Professional Papers, and Capstones
During the spring of 1998, soil samples were collected from two areas at the Overton Wildlife Management Area (OWMA), located in the Moapa Valley of Clark County, Nevada. Lead shot has been banned for the hunting of waterfowl since 1986 but is still legal for upland game hunting. Both types of hunting occur at OWMA. One area sampled is a cultivated field and serves primarily as a dove hunting area. The other area is primarily a waterfowl hunting area and is flooded during the waterfowl-hunting season. Lead shot was recovered from 83% of the samples from the dove hunting area, …
A Strategic Analysis Of The Rocky Flats Cleanup, Patrick Mccann
A Strategic Analysis Of The Rocky Flats Cleanup, Patrick Mccann
UNLV Theses, Dissertations, Professional Papers, and Capstones
The Rocky Flats Environmental Technology Site is located in Golden, Colorado. It is situated on 384 acres in a 6,550-acre natural preserve. Rocky Flats ended its original mission in 1989, after raids on the site by both the FBI and the EPA for illegal dumping and other environmental violations. Since then the site has been scheduled for cleanup. This thesis will provide background information on the site and on the company hired to perform the cleanup. It also provides an evaluation of some key policies regarding the cleanup procedures. Since the end of the cold war, the production of nuclear …
Stachybotrys: Is Nevada At Risk?, Terrylynn C. Foley
Stachybotrys: Is Nevada At Risk?, Terrylynn C. Foley
UNLV Theses, Dissertations, Professional Papers, and Capstones
Stachybotrys chartarum (atra) is a toxigenic fungus that is known to adversely impact the health of animals. Until recently, there have only been a few documented clinical reports linking Stachybotrys chartarum to human health effects. Scientists are increasingly convinced that Stachybotrys and its metabolites are responsible for several adverse health effects experienced by people all over the world, although conclusive proof has yet to be established. All the physical requirements needed for indoor Stachybotrys sporulation and growth is provided through water leaks (plumbing, roof or ceiling), flood events, nutrient sources (cellulose and nitrogen), pH, and temperature(23° - 28°C). Stachybotrys has …
A Teachers Guide: The Basic Characteristics Of Wetlands And Why They Are Important To The Environment, Charles W. Fisher
A Teachers Guide: The Basic Characteristics Of Wetlands And Why They Are Important To The Environment, Charles W. Fisher
UNLV Theses, Dissertations, Professional Papers, and Capstones
The purpose of this thesis is to develop an educational guide about wetlands that can be used by 3rd- 12th grade teachers. This guide will enable students to learn about wetlands and why they are important to our environment. I will provide examples and a series of activities that teachers can use in the classroom to help their students better understand the benefits and function of wetlands.
Remedial Action Plan For A Petroleum Hydrocarbon Release, Marty E. Murrietta
Remedial Action Plan For A Petroleum Hydrocarbon Release, Marty E. Murrietta
UNLV Theses, Dissertations, Professional Papers, and Capstones
This Remediation Action Plan (RAP) presents the methods and results of feasibility testing, the screening and selection of remedial options, preliminary conceptual design, methods, permitting requirements, recommendations and cleanup goals for on- and off-site remediation of petroleum hydrocarbon impacted soil and groundwater at an undisclosed site in Laughlin, Nevada. This site is an active convenience store and former retail fueling station. Plans are being made for the demolition of the fueling station and construction of a Factory Outlet Mall on the former refueling station site and surrounding properties to the south, west, and northwest. Remediation activities cannot significantly interfere with …
The Price Of Clean Air: A Consideration Of Market Based Emissions Trading, Mark W. Miller
The Price Of Clean Air: A Consideration Of Market Based Emissions Trading, Mark W. Miller
UNLV Theses, Dissertations, Professional Papers, and Capstones
Traditional regulatory approaches for environmental protection do not consider
the costs and benefits of the standards they impose. Further, imposing strict performance
standards on firms with heterogeneous control costs leads to an inefficient allocation of resources devoted to pollution control. This paper explores the use of emission allowance trading as a way to improve economic efficiency within the context of environmental protection. PM10 air pollution from sources within the Las Vegas Valley is used as the case study.
This paper found that an emission trading
program in this particular case study would not live up to the theoretical expectations. Although, …
Effects Of Oxygen Variation On The Ecology Of Devil's Hole, Death Valley National Park, Norma J. Azad
Effects Of Oxygen Variation On The Ecology Of Devil's Hole, Death Valley National Park, Norma J. Azad
UNLV Theses, Dissertations, Professional Papers, and Capstones
The inability to rear Devil's Hole pupfish, Cyprinodon diabolis Wales, in captivity, when captive propagation has been successful with other species of pupfish, led to the examination of environmental factors which are unique to Devil's Hole. It has been suggested that C. diabolis regularly experience developmental arrest due to hypoxic conditions. This arrest may be reversible in areas of the shallow shelf during periods of photosynthetic activity. Oxygen measurements over the shallow shelf reveal a gradient of oxygen variation with the greatest diel variability over the inner portion of the shelf diminishing to nearly imperceptible diel variation toward the outer …
Watercraft Impact On The Lake Mead National Recreational Area, Terence Lino
Watercraft Impact On The Lake Mead National Recreational Area, Terence Lino
UNLV Theses, Dissertations, Professional Papers, and Capstones
No abstract provided.
A Comparison Of Astm Standard E1599-94 And A Site Assessment Project Located In North Las Vegas, Kenneth Anthony Katsuda
A Comparison Of Astm Standard E1599-94 And A Site Assessment Project Located In North Las Vegas, Kenneth Anthony Katsuda
UNLV Theses, Dissertations, Professional Papers, and Capstones
This document provides a comparison of ASTM E-1599-94 Standard for a petroleum release and the procedures performed on a site assessment project in North Las Vegas. The major elements of a site assessment are thoroughly discussed in this document. They elements consist of the Initial Site Assessment, On-Site Delineation, Off-Site Delineation, Sampling/Analysis, and Site Assessment Methodologies.
The data was obtained through extensive research, utilizing reference documents,on-site experience, and the knowledge of Keith Stewart of Stewart Environmental.
After reviewing and comparing the data of my research, the procedures applied to the North Las Vegas Site (NLVS) were quite similar to the …
Crime Prevention Through Environmental Design: An Analysis Of The Boulevard Mall, Kenneth Mac Leod
Crime Prevention Through Environmental Design: An Analysis Of The Boulevard Mall, Kenneth Mac Leod
UNLV Theses, Dissertations, Professional Papers, and Capstones
Many case studies have been published that report a decrease in crime as a result of Crime Prevention Through Environmental Design (CPTED). Although methodologies and results of some studies have been questioned, there is agreement that the designed environment can influence human behavior.
Data in this study were accumulated by the investigation of a local mall. Mall management and head of security reported a decrease in all types of crime after improving and adding security measures for customers and store employees. My hypothesis was the mall provided a high number of CPTED features which would result in a low number …