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Articles 48991 - 49020 of 52447
Full-Text Articles in Physical Sciences and Mathematics
Municipal Water Resources Analysis For Area Potentially Impacted By Mx Missile Complex In Utah, Trevor C. Hughes, V. A. Narasimhan, William J. Grenney, L. Douglas James
Municipal Water Resources Analysis For Area Potentially Impacted By Mx Missile Complex In Utah, Trevor C. Hughes, V. A. Narasimhan, William J. Grenney, L. Douglas James
Reports
Scope of Report: This report analyzes the impact of the proposed MX Missile complex upon existing municipal water supply and waste treatment systems serving selected communitites either near the perimeter or within the Utah portion of the proposed MX complex boundary. As can be seen from the location map in Figure 1, possible sites for elements within the total MX missile complex have been identified in 14 Utah desert valleys in the five counties, from north to south, of Tooele, Juab, Millard, Beaver, and Iron. The 60,000 people, who live in these counties according to the 1975 census, are largely …
Management Of Rural Domestic Water Systems In Utah, Trevor C. Hughes
Management Of Rural Domestic Water Systems In Utah, Trevor C. Hughes
Reports
Introduction: There are now more than 400 community type public drinking water systems in Utah. Considerable state and federal assistance is available for construction or renovation of such systems, but once the system is constructed and the consulting engineer leaves, the managers of the smaller systems find themselves quite isolated from sources of professional assistance. The larger systems have a revenue base which can provide ongoing services of a consultant or salaried engineer and well trained operators. The smaller systems, particularly low density rural systems where the length of pipeline per user is very high, usually find themselves barely able …
A Framework For Risk Analysis Of Earth Dams, Jon C. Howell, Loren R. Anderson, David S. Bowles, Ronald V. Canfield
A Framework For Risk Analysis Of Earth Dams, Jon C. Howell, Loren R. Anderson, David S. Bowles, Ronald V. Canfield
Reports
This purpose of this thesis is to present in a logical and straightforward manner, the types of probabilistic, deterministic and judgment methods which should be part f a risk analysis process for earth dam planning, design, construction and operation. In doing this, an attempt was made to include all of the elements (components of the risk analysis procedure defined herein) which were considered to be important. Descriptions of these elements as well as how they are used to estimate probabilities for the occurrence of each of three failure conditions (i.e. no failure, partial failure, complete failure) are also presented. Explanations …
Management Of The Hydrologic System In Areas Subject To Coal Mining Activities, Rollin H. Hotchkiss, Eugene K. Israelsen, J. Paul Riley
Management Of The Hydrologic System In Areas Subject To Coal Mining Activities, Rollin H. Hotchkiss, Eugene K. Israelsen, J. Paul Riley
Reports
Publicity given to the detrimental effects of mining activities on the environment has tended to overshadow somewhat the hydrologic opportunities and benfits that could be associated with these activities. For example, many areas disturbed by surface mining have proved to be excellent recharge areas for groundwater aquifers. The degree to which mine sites can be exploited to improve management of the hydrologic system depends on both the local geology and the mining techniques used. The report examines the effects of present mining activities on the associated hydrology system, and identifies specific mining procedures and management techniques which not only minimize …
A Preliminary Study On Expanding And Financing State Water Development, Daniel H. Hoggan, Kirk R. Kimball, Jay M. Bagley
A Preliminary Study On Expanding And Financing State Water Development, Daniel H. Hoggan, Kirk R. Kimball, Jay M. Bagley
Reports
The effects of recent energy price increases, domestic inflation rates, financial market fluctuations, and changing public attitudes toward federally sponsored water resource development and management have brought economic and financial consideratiosn to the forefront of Western water management issues. Recently enacted federal policies place increased responsibility on the states and localities for the development and management of their water resources. A response common to many of the western states has been to stengthen traditional, and often small, water financing and development programs. In creating and sustaining such a posture, however, state governments must address the important questions pertaining to the …
Research On Increased Winter Orographic Precipitation By Cloud Seeding (Fy 1980), Geoffrey E. Hill
Research On Increased Winter Orographic Precipitation By Cloud Seeding (Fy 1980), Geoffrey E. Hill
Reports
This research continues the development of new instrumentation relevant to the advancement of cloud seeding technology and the analysis of data collected to better understand cloud seeding potential in winter orographic clouds. Instrumentation development included the state of construction of a NOAA type dual frequency radiometer for the continuous measurement of supercooled liquid water and the completion of an expendable balloon-borne system for measuring vertical profiles of supercooled liquid water. The analysis of data collected on the project was directed primarily at the interpretation of the vertical profiles of supercooled liquid water and vertical motion. Results indicate that sharp vertical …
Preliminary Study Of The Northern Utah Hail Suppression Project, Geoffrey E. Hill
Preliminary Study Of The Northern Utah Hail Suppression Project, Geoffrey E. Hill
Reports
This study represents an examination of the possibilities for evaluating the northern Utah summertime rain-enhancement hail-suppression project. This study is
User Manual For The Probabilistic Stream Simulation And Assessment Model (Pssam), Brad A. Finney, David S. Bowles, Michael P. Windham
User Manual For The Probabilistic Stream Simulation And Assessment Model (Pssam), Brad A. Finney, David S. Bowles, Michael P. Windham
Reports
No abstract provided.
Evaluation Of Mutagenicity Testing Of Extracts From Processed Oil Shale, Judith G. Dickson, V. Dean Adams
Evaluation Of Mutagenicity Testing Of Extracts From Processed Oil Shale, Judith G. Dickson, V. Dean Adams
Reports
The Ames/
Federal Protection Of Unique Environmental Interests: Endangered And Threatened Species, Ronald H. Rosenberg
Federal Protection Of Unique Environmental Interests: Endangered And Threatened Species, Ronald H. Rosenberg
Faculty Publications
Endangered species protection has long been favored by many Americans, who watched regretfully as the numbers of American eagles, buffaloes and other species dwindled toward extinction. Only recently, however, has species protection become a matter of public controversy, subsumed in the more general "development v. environment" debate. In this Article, Professor Rosenberg surveys the federal government's role in species protection, with a special focus on the Endangered Species Act of 1973. Prompted by the much-publicized Supreme Court decision in the "snail darter case"--TVA v. Hill-Congress extensively amended the Act in 1978. After a detailed analysis of these amendments, Professor Rosenberg …
Some Historical Accounts Of The Natural Conditions In Tampa Bay And Hillsborough County, Michael Heerschap
Some Historical Accounts Of The Natural Conditions In Tampa Bay And Hillsborough County, Michael Heerschap
Reports
As we might expect as we read on in the literature we find that as Tampa grows, then the animals and fish which were so abundant slowly disappear. An interesting feature of these accounts are the stores told of mass killings of animals and birds for no reason except for fun. Also included are some tales of our notorious insect life and thundershowers. This report is a collection of some of the more interesting quotes from various sources.
The Removal Of Viruses From Water By Conventional Water-Treatment Practices, Janet S. Ziegle
The Removal Of Viruses From Water By Conventional Water-Treatment Practices, Janet S. Ziegle
Masters Theses
The purpose of this investigation was to determine the effectiveness of conventional water-treatment methods in removing viruses from raw water sources. Those processes studied included alum flocculation, rapid sand filtration of fleeced and unflocced water samples, and chlorine disinfection.
This study was approached using coliphage f2 as a seeded indicator of treatment efficiency. Coliphage f2 was chosen as an indicator because of its similarities to enteric viral pathogens in both morphology and sensitivity to water-treatment processes. Coliphage f2 was found to occur naturally in surface waters, but not in numbers sufficient to interfere with calculations.
A sand filter for laboratory …
Repopulation Of Fishes In Riley Creek, Coles County, Illinois Following Nitrogen Fertilizer Pollution, Kim James Carney
Repopulation Of Fishes In Riley Creek, Coles County, Illinois Following Nitrogen Fertilizer Pollution, Kim James Carney
Masters Theses
The repopulation of stream fishes was studied from 17 May 1979 to 25 October 1979 following a major kill (100% mortality) caused by nitrogen fertilizer pollution in Riley Creek, Coles County, Illinois. The extent of recovery was determined by comparing post-kill collections with pre-kill survey data that was collected on 25 October 1978.
Repopulation began six days after the abatement of the pollution source. It is suggested that the initial source of repopulation was from the nearest undamaged tributary. The first three reinhabitants in order of appearence were: stonerollers (Campostoma anomalum); creek chubs (Semotilus atromaculatus); and …
Surface Area Of Coal As Influenced By Low Temperature Oxidation Processes, Salvador Leon Arredondo
Surface Area Of Coal As Influenced By Low Temperature Oxidation Processes, Salvador Leon Arredondo
Dissertations and Theses
The possibility of increasing the amount of readily accessible surface area by enlarging the 5 A pore was examined via pretreating the PSOC-371 coal with gases such as nitrogen, nitrogen-oxygen, and ozone-oxygen and hydrogen peroxide solutions. Surface areas were obtained from nitrogen adsorption at 77 K and carbon dioxide adsorption at either 298 or 195 K for each sample before and after treatment.
Effects Of Ingestion Of Kepone Contaminated Food By Juvenile Blue Crabs (Callinectes Sapidus Rathbun), Daniel J. Fisher
Effects Of Ingestion Of Kepone Contaminated Food By Juvenile Blue Crabs (Callinectes Sapidus Rathbun), Daniel J. Fisher
Dissertations, Theses, and Masters Projects
No abstract provided.
Bioaccumulation And Effects Of Kepone On Spot, Leiostomus Xanthurus, Linda L. Stehlik
Bioaccumulation And Effects Of Kepone On Spot, Leiostomus Xanthurus, Linda L. Stehlik
Dissertations, Theses, and Masters Projects
No abstract provided.
Effect Of Phenoxy Acids And Their Derivatives On The Ionic Permeability Of Bilayer Lipid Membranes, Malkanthi Paulis Illangasekare
Effect Of Phenoxy Acids And Their Derivatives On The Ionic Permeability Of Bilayer Lipid Membranes, Malkanthi Paulis Illangasekare
Dissertations and Theses
It has been found that the herbicide 2,4-D has the ability to increase the rate of transport of positive ions of several kinds and inhibit the transport of negatively charged tetraphenylborate ions in lipid bilayer membranes. Only the neutral molecules of 2,4-D are transport active. The ionized 2,4-D molecules do not modify the transport of ions, and do not by themselves permeate through lipid membranes. The results suggest that the enhancement of transport of positively charged ions is dominated by the increase of the ion translocation rate constant. It has been shown that membrane transport of negatively charged tetraphenylborate ions …
Program Planning For Extension Wildlife Damage Control: Rodents, Edward K. Boggess
Program Planning For Extension Wildlife Damage Control: Rodents, Edward K. Boggess
Great Plains Wildlife Damage Control Workshop Proceedings
Program planning is a necessary part of any educational program which is intended to progress in an orderly or logical manner. However, it must be realized that extension wildlife specialists often must deal with special sets of circumstances when it comes to resolving problems with wildlife. When faced with a particular damage problem, the wildlife specialist has two options: to act or to react. The choice of which course to take depends on the specific problem and on a number of related factors, such as uniqueness and severity of the problem and community attitudes.
Virginia Fisheries And The Environment: Proceedings, William & Mary Law School, Virginia Marine Resources Commission, Virginia Institute Of Marine Science
Virginia Fisheries And The Environment: Proceedings, William & Mary Law School, Virginia Marine Resources Commission, Virginia Institute Of Marine Science
Law School Conferences: Ephemera
Held December 8, 1979 at the Colonial Williamsburg Lodge.
Funded by the Virginia Environmental Endowment. Sponsored by the Marshall-Wythe School of Law, with the cooperation of the Virginia Marine Resources Commission and the Virginia Institute of Marine Science.
Symposium Participants (in order of appearance): Perkins Wilson, L. Eugene Cronin, Luie Fass, Ivar Strand, Carl L. Herring, Jr., J.B. Jackson, Herbert M. Austin, James Chambers, Robert R. Huggett, Ronald Gregory, John Wedin, Turner Smith, Jackson Davis, William M. Feinberg, James F. McHugh, John M. DeMaria, Jr., N. Bartlett Theberge, Evelyn M. Hailey, Allen W. Haynie, and Thomas J. Schoenbaum.
Using Extension Methodology In Prairie Dog Management, Lloyd K. Cheatheam
Using Extension Methodology In Prairie Dog Management, Lloyd K. Cheatheam
Great Plains Wildlife Damage Control Workshop Proceedings
At the turn of the century, Texas' 'black-tailed prairie dog was probably the State's most abundant wildlife species. Bailey estimated the population at 800,000,000 animals in 1905. He also described a single colony that was 100 miles wide and 250 miles long, from San Angelo, Texas to Clarendon, Texas. During this period, other authors described riding by horseback for several days through a single colony. Settlers of this area, wishing to raise cattle, had to first control the prairie dog. My good friend, G.IJ. "Shorty" Kennedy, a retired ranch foreman and an octgenarian, described these historical control methods to me.
The Challenge Of Cost-Benefit Determinations In Bird Damage Control Programs, Richard A. Dolbeer
The Challenge Of Cost-Benefit Determinations In Bird Damage Control Programs, Richard A. Dolbeer
Great Plains Wildlife Damage Control Workshop Proceedings
Birds cause damage to a variety of crops in North America and, at least for blackbirds feeding on corn, there are fairly accurate estimates of the amount of damage that occurs (Stone et al. 1972, Stickley et al. 1979). To combat these depredation problems, a variety of management tools (cultural methods, mechanical scare devices, chemical toxicants, and repellents)have been developed and are routinely recommended to farmers. Unfortunately, little effort has gone into examing the anticipated or actual losses in relation to the effectiveness and costs of the recommended damage control programs.
Control Of Urban Blackbird And Starling Roosts, Ron Ogden
Control Of Urban Blackbird And Starling Roosts, Ron Ogden
Great Plains Wildlife Damage Control Workshop Proceedings
Blackbirds and starlings often establish large fall and winter roosts in areas where their presence is objectionable because of potential health, economic, and/or nuisance problems. Roosts of more than a million birds are not uncommon. Red-winged blackbirds (Agelphoeniceus), common grackles (Quiscalus cuiscula), brown-headed cowbirds (Molothrus ater), and starlings (Sturnus vulgaris) make up most of the roosts populations.
Extension Program Planning For Predator Damage Control, Dale A. Wade
Extension Program Planning For Predator Damage Control, Dale A. Wade
Great Plains Wildlife Damage Control Workshop Proceedings
Program planning for reduction of predator damage through the Extension approach normally involves producers, the county Extension agent and the Extension specialist in animal damage control. Please note that I will use the term "animal damage" rather than "wildlife damage", since free-ranging and feral dogs are frequently responsible for predator-caused losses and reducing these losses is equally as important as limiting losses to wild species.
Extension Education Within The U.S. Fish And Wildlife Service, Dan Stiles
Extension Education Within The U.S. Fish And Wildlife Service, Dan Stiles
Great Plains Wildlife Damage Control Workshop Proceedings
What I want to accomplish today is to discuss: a little about the organization of Extension Education within the Fish and Wildlife Service; our progress and plans; something about extension and animal damage control; some philosophical observations and comments, and lastly, a look toward the future.
Predation On Nesting Waterfowl In The Glaciated Prairie Pothole Region, Raymond Greenwood
Predation On Nesting Waterfowl In The Glaciated Prairie Pothole Region, Raymond Greenwood
Great Plains Wildlife Damage Control Workshop Proceedings
Increased duck production is a primary goal of management on federal Waterfowl Production Areas and many National Wildlife Refuges in the glaciated Prairie Pothole Region. Considerable effort is expended to manage many of those areas for increased duck nesting success. Predation often reduces the effectiveness of many waterfowl management practices and results in lowered production of young by local waterfowl populations. Recent studies on upland nesting ducks in the Prairie Pothole Region of North and South Dakota show that up to 18 percent of the nesting hens, 20-90 percent of the eggs, and a significant though undetermined number of ducklings …
How To Evaluate Wildlife Damage Control Programs, Orvis Gustad
How To Evaluate Wildlife Damage Control Programs, Orvis Gustad
Great Plains Wildlife Damage Control Workshop Proceedings
I did not volunteer to substitute for Bill Pfeifer on the subject of "How to Evaluate Predator Control Programs" as an expert on this subject, but rather to: 1) point out that we recognize the need for good base information for describing effectiveness; and 2) relay how the Service's Animal Damage Control Program proposes to obtain it.
Program Planning For Extension Wildlife Damge Control - Bird Damage, Ron J. Johnson
Program Planning For Extension Wildlife Damge Control - Bird Damage, Ron J. Johnson
Great Plains Wildlife Damage Control Workshop Proceedings
Bird damage problems occur throughout the Great Plains States, and these problems often confront extension personnel. Knowledge of what problems occur in the various states and how they are handled may help us better pool efforts toward finding solutions. Shared information may also show patterns that exist or new problems emerging that might require increased attention in the future.
Update Of Federally Registered Vertebrate Pesticides, Raymond W. Matheny
Update Of Federally Registered Vertebrate Pesticides, Raymond W. Matheny
Great Plains Wildlife Damage Control Workshop Proceedings
The Environmental Protection Agency is charged by Congress under the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) to regulate the use of pesticides in the United States. Section 3 of FIFRA requires that all interstate pesticides be federally registered. In this process applicants must submit data to support registration of their products. These data encompass the safety, basic chemistry, environmental chemistry, human toxicity and fish and wildlife toxicity of the product. Admittedly, registration of pesticides can be both costly and time-consuming. The objective is to protect the environment, both plant and animal, from adverse effects. Pesticides may also be used,experimentally …
Federally Registered Pesticides For Vertebrate Control , R.W. Matheny
Federally Registered Pesticides For Vertebrate Control , R.W. Matheny
Great Plains Wildlife Damage Control Workshop Proceedings
list of registered pesticides
A Discussion Of The Renewable Resources Extension Programf, Merrill L. Petoskey
A Discussion Of The Renewable Resources Extension Programf, Merrill L. Petoskey
Great Plains Wildlife Damage Control Workshop Proceedings
The Extension programs of the Department of Agricultrue and of each state are expected to provide useful and productive educational programs, for private forest and range and owners, processors, consumptive and non-consumptive users of the renewable resources produced from these lands. These educational activities are also expected to complement research and assistance programs conducted by the Department of Agriculture.