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Articles 21931 - 21960 of 24985
Full-Text Articles in Entire DC Network
Tiger Team Assessment Of The Naval Petroleum And Oil Shale Reserves Colorado, Utah, And Wyoming, United States Department Of Energy
Tiger Team Assessment Of The Naval Petroleum And Oil Shale Reserves Colorado, Utah, And Wyoming, United States Department Of Energy
All U.S. Government Documents (Utah Regional Depository)
This report documents the Tiger Team Assessment of the Naval Petroleum and Oil Shale Reserves in Colordao, Utah, and Wyoming (NPOSR-CUW). NPOSR-CUW consists of Naval Petroleum Reserve Number 3 (NPR-3) located near Casper, Wyoming; Naval Oil Shale Reserve Number 1 (NOSR-1) and Naval Oil Shale Reserve Number 3 (NOSR-3) located near Rifle, Colorado; and Naval Oil Shale Reserve Number 2 (NOSR-2) located near Vernal, Utah, which was not examined as part of this assessment.
Environmental Challenges In Egypt, Farkhonda Hassan
Environmental Challenges In Egypt, Farkhonda Hassan
Faculty Book Chapters
[abstract not provided]
Scarce Resources, Perception Of Risk, And Collective Action, Nicholas S. Hopkins
Scarce Resources, Perception Of Risk, And Collective Action, Nicholas S. Hopkins
Faculty Book Chapters
[abstract not provided]
Towards Sustainable Desert Development For Egypt, Adli Bishay
Towards Sustainable Desert Development For Egypt, Adli Bishay
Faculty Book Chapters
[abstract not provided]
Denial In The Decisive Decade: Towards Intervention And Common Action, Sandra Postel
Denial In The Decisive Decade: Towards Intervention And Common Action, Sandra Postel
Faculty Book Chapters
[abstract not provided]
Final Environmental Impact Statement Stanley Basin C & H Allotment Management Plan Sawtooth National Recreation Area, United States Forest Service
Final Environmental Impact Statement Stanley Basin C & H Allotment Management Plan Sawtooth National Recreation Area, United States Forest Service
Final Environmental Impact Statements (ID)
This Final Environmental Impact Statement (FEIS) documents the analysis conducted for the Stanley Basin Cattle and Horse Allotment Management Plan. The allotment management plan involves National Forest System lands within the Sawtooth and Challis National Forests. The analysis of the current condition of the Stanley Basin Allotment has found that the existing grazing system does not comply with the direction, standards and guidelines of the Sawtooth and Challis Forest Land and Resource Management Plans (FLRMP). The proposed action of this Final Environmental Impact Statement is to bring management of the allotment into compliance with the FLRMPs. The FEIS describes five …
Environmental Action At The Community Level, Salah Arafa
Environmental Action At The Community Level, Salah Arafa
Faculty Book Chapters
[abstract not provided]
Human Development And The Environment, Mohsen Tawfik
Human Development And The Environment, Mohsen Tawfik
Faculty Book Chapters
[abstract not provided]
13.2.15. Human Disturbances Of Waterfowl: Causes, Effects, And Management, Carl E. Korschgen, Robert B. Dahlgren
13.2.15. Human Disturbances Of Waterfowl: Causes, Effects, And Management, Carl E. Korschgen, Robert B. Dahlgren
Waterfowl Management Handbook
Human disturbances of waterfowl can be intentional or unintentional. They may result from overt or directed activities or may be ancillary to activities not initially thought to be of concern to birds. Some of these disturbances are manifested by alertness, fright (obvious or unapparent), flight, swimming, disablement, or death. Therefore, persons responsible for waterfowl management areas should be aware of the problems from human disturbance and should design management and facilities that increase public appreciation of waterfowl.
In the last 20 years, the intensity of water-based recreation increased drastically, especially on inland waters. Waterfowl are wary, seeking refuge from all …
Wildlife Health Centre Newsletter, Volume 1-1, Winter 1992
Wildlife Health Centre Newsletter, Volume 1-1, Winter 1992
Canadian Cooperative Wildlife Health Centre: Newsletters and Publications
Canadian Cooperative Wildlife Health Centre is underway! How the CCWHC will work How to contact the Centre The people involved The logo Disease update
Overview Of The Symposium On Walleye Stocks And Stocking, Daryl G. Ellison, William G. Franzin
Overview Of The Symposium On Walleye Stocks And Stocking, Daryl G. Ellison, William G. Franzin
Nebraska Game and Parks Commission: Staff Research Publications
Rising angler interest in walleye Stizostedion vitreum, a general decline in natural recruitment in some waters, and increasing demands for stocking have produced a need to evaluate stocking strategies. Such evaluations were the subject of the Walleye Stocks and Stocking Symposium summarized herein. Among walleye stocking evaluations reported in the symposium, 32% of fry stockings, 32% of small-fingerling stockings, and 50% of advanced-fingerling stockings were considered successful. Further improvement in stocking success requires research into the factors that affect survival. Matching stocking times and places to appropriate food resources appears to be a key element in successful introductions of …
Nebraska's Vanishing Species, Greg Wingfield
Nebraska's Vanishing Species, Greg Wingfield
Nebraska Game and Parks Commission: Staff Research Publications
Nebraskans are blessed with a rich heritage - friendly, hard-working people, unique landforms and diverse natural resources, including native species of plants and animals. Unfortunately, an irreplaceable part of this heritage, our threatened and endangered species, is vanishing.
Simply stated, a threatened species is one likely to become endangered. An endangered species is one so rare that it is in danger of becoming extinct. Extinction is the loss of a species from this world.
Wildlife Damage News, Volume 3, Winter 1992
Wildlife Damage News, Volume 3, Winter 1992
Wildlife Damage News
CONTENTS: Coons in the Chimney Excluding Bats from Structures International Resolution Supports Regulated Trapping Species Profile - Woodchuck Wildlife Veterinarians Adopt Position Statement on Oral Rabies Vaccine NYS Nuisance Wildlife Control Operators Become Organized A Wildlife Professional Talks About Animal Rights and Animal Welfare Current Literature Meetings of Interest The Northeast Association of Wildlife Damage Biologists
Bacteriological Water Quality Of Beaver Reservoir, Arkansas, Jimmy D. Bragg, Mark E. Clark
Bacteriological Water Quality Of Beaver Reservoir, Arkansas, Jimmy D. Bragg, Mark E. Clark
Journal of the Arkansas Academy of Science
Beaver Reservoir water quality was determined through enumeration of Total coliforms and Fecal coliforms bacterial parameters at selected locations during 1991. Several areas of the reservoir contained high numbers of indicator bacteria, suggesting excessive fecal contamination. Significant numbers of salmonella-like bacteria were also cultured on SS agar, and several strains were serotyped positive for Salmonella antigens.
Soil Chemistry And Nutrition Of North American Red Spruce-Fir Stands: Evidence For Recent Change, J. D. Joslin, J. M. Kelly, H. Van Miegroet
Soil Chemistry And Nutrition Of North American Red Spruce-Fir Stands: Evidence For Recent Change, J. D. Joslin, J. M. Kelly, H. Van Miegroet
Watershed Sciences Faculty Publications
One set of hypotheses offered to explain the decline of red spruce (Picea rubens Sarg.) in eastern North America focuses on the effect of acidic deposition on soil chemistry changes that may affect nutrient availability and root function. Long-term soils data suggest that soil acidification has occurred in some spruce stands over the past 50 yr, with plant uptake and cation leaching both contributing to the loss of cations. Studies of tree ring chemistry also have indicated changes in Ca/Al and Mg/Al ratios in red spruce wood, suggesting increases in the ionic strength of soil solution. Irrigation studies using strong …
Using Physical, Chemical And Biological Indicators To Assess Water Quality On The Ouachita National Forest Utilizing Basin Area Stream Survey Methods, J. Alan Clingenpeel, Betty G. Cochran
Using Physical, Chemical And Biological Indicators To Assess Water Quality On The Ouachita National Forest Utilizing Basin Area Stream Survey Methods, J. Alan Clingenpeel, Betty G. Cochran
Journal of the Arkansas Academy of Science
The Ouachita National Forest (ONF) has developed a series of Best Management Practices (BMP's) designed to protect water quality and associated beneficial uses (fisheries, municipal water supplies, etc.). A monitoring program is necessary to document the effectiveness of that protection. The Basin Area Stream Survey (BASS) methodology provides a monitoring link from BMP's to the aquatic ecosystems. The goal of BASS is to identify the physical, chemical and biological characteristics of a stream in a format that will allow comparisons with other streams, and indicate when a stream is being impacted. Six index streams within two ecoregions were selected and …
Bioengineering For Water Cleanup: State-Of-The-Art Assessment, Judith L. Sims, Ronald C. Sims, Jon S. Ginn
Bioengineering For Water Cleanup: State-Of-The-Art Assessment, Judith L. Sims, Ronald C. Sims, Jon S. Ginn
Reports
No abstract provided.
Characterization Of Aspartic Proteinases From The Gut Of The Tick, Rhipicephalus Appendiculatus Neuman, Waha R.M. Vundla, Michel Brossard, David J. Pearson, Victor L. Labongo
Characterization Of Aspartic Proteinases From The Gut Of The Tick, Rhipicephalus Appendiculatus Neuman, Waha R.M. Vundla, Michel Brossard, David J. Pearson, Victor L. Labongo
All Peer-Reviewed Publications
Two proteinases designated 1 and 2, purified from the gut of partially engorged female, Rhipicephalus appendiculatus have been characterized. Both proteinases hydrolysed denatured haemoglobin (Hb) at acid pH, with Michaelis constants (KM) of 1.19 g/100 ml (proteinase 1) and 0.71 g/100 ml (proteinase 2). Pepstatin competitively inhibited both proteinases, with a K1 of 1.7 nM (proteinase 2). Both proteinases were also inhibited by 1 mM phenylmethylsulphonyl fluoride (PMSF). The pH optimum for proteinase 1 was 3.0, with a smaller but distinct second peak at pH 4.6. For proteinase 2, peak activity was at pH 2.6 with a second smaller peak …
Ontario's Blue Box As An Agent Of Change, Robert Nathaniel Burgess
Ontario's Blue Box As An Agent Of Change, Robert Nathaniel Burgess
Theses and Dissertations (Comprehensive)
Ontario's blue box has elicited strong arguments from observers on both sides of a debate regarding the recycling programme‘s promotion of social change in the province. Both supporters and critics agree on our eventual need to change from a consumer to a conserver society through the 3Rs of waste management (reduce. reuse. recycle). but they disagree on whether the blue box programme ultimately encourages this change. Disagreement also exists regarding the means to achieving change. With supporters of the blue box approach favouring working within the system whereas critics tend to favour a more radical approach. Practical criticisms concern the …
Studies Of Ecological Factors That Affect The Population And Distribution Of The Western Gray Squirrel In Northcentral Oregon, Susan Ann Foster
Studies Of Ecological Factors That Affect The Population And Distribution Of The Western Gray Squirrel In Northcentral Oregon, Susan Ann Foster
Dissertations and Theses
The western gray squirrel (Sciurus griseus griseus Ord) occur only in the Pacific states and in a small corner of extreme western Nevada. Field studies of aspects of the ecology of the most widely distributed subspecies of western gray squirrel (S. griseus) were conducted at three sites in the ponderosa pine-Oregon white oak zone on the eastern slopes of Mt. Hood, Wasco County, Oregon, between 1981 and 1989. From 1981 through 1987, a Hunter Cooperation Program provided remains of squirrels shot during the annual late summer-early autumn hunting season. Other data were gathered through capture and release studies, radiotelemetry, and …
Development And Standardization Of A Short-Term Assay For Evaluating Polluted Estuarine And Coastal Environments: The Medaka Embryo-Larval Assay, Michael Frederick Helmstetter
Development And Standardization Of A Short-Term Assay For Evaluating Polluted Estuarine And Coastal Environments: The Medaka Embryo-Larval Assay, Michael Frederick Helmstetter
OES Theses and Dissertations
The eggs of the Japanese medaka (Oryzias latipes) were employed in a number of studies to develop a routine, standardized assay which can assess the acute and sublethal impacts of individual toxicants and complex mixtures. The eggs of this Cyprinodont minnow were topically treated with each toxicant or mixture dissolved in membrane permeable dimethylsulfoxide (DMSO) solvent. Nine chemicals were initially evaluated with two, pentachlorophenol (PCP) and tributyltin chloride (TBTCl), subsequently selected for extensive evaluations of salinity tolerance and the accuracy of the topical exposure method for representing a typical immersion exposure. The amount of material actually penetrating the eggs was …
Practices Of Waste Management In Iowa Public Schools, Catherine Mary Patzner
Practices Of Waste Management In Iowa Public Schools, Catherine Mary Patzner
Dissertations and Theses @ UNI
The purpose of this study was to describe the waste management practices utilized in randomly selected Iowa public schools overall and stratified by student enrollment. The sample consisted of 100 public schools in Iowa. All public schools with enrollments of 900 or more were chosen. The remaining schools in this sample were selected based on stratified random sampling techniques. A questionnaire was constructed to ascertain the presence and extent of waste management in Iowa public schools. This questionnaire was used as the tool for collecting data. Of the 100 questionnaires mailed in this study, 76 were returned. The questionnaire was …
Towards The Development Of A Kantian Environmental Ethic, Sally Nelson Wiedmann
Towards The Development Of A Kantian Environmental Ethic, Sally Nelson Wiedmann
Dissertations and Theses @ UNI
This thesis is a response to Aldo Leopold's 1949 call for a new, wholistic environmental ethic. Leopold's call stemmed from his concern over the increasing degradation of the environment as a result of a utilitarian approach which judges nature as good only insofar as it is good for human economic and recreational benefit. This thesis is aimed at the development of a wholistic, non-utilitarian environmental ethic grounded in the philosophy. of Immanuel Kant. The thesis begins with a brief review of the utilitarian environmental ethic which Leopold opposed and some of the consequences it has wrought in the natural world. …
The Effects Of Oxygen Tension On Nitrate Reduction By Pseudomonas Isolate, Hao-Jan Hsing
The Effects Of Oxygen Tension On Nitrate Reduction By Pseudomonas Isolate, Hao-Jan Hsing
Theses
It is a generally accepted concept that nitrate reduction only occurs under anaerobic conditions. Oxygen inhibits denitrification. However many studies of nitrate reduction under low oxygen tension have shown what has been called aerobic denitrification. This project examines the process of aerobic denitrification.
Oxgyen affects cell growth and the amount of nitrate utilized. When oxygen is absent, the cell growth rate is lower and nitrate utlization is higher then when oxygen is present.
Nitrate is reduced to nirite under anaerobic conditions. Nitrite accumulation did not continue increase. But increased then decreased producing a "Z" shaped graph when plotted.
Measurement Of The Removal Of Selected Vocs From A Municipal Treatment Plant, Hong Yu
Measurement Of The Removal Of Selected Vocs From A Municipal Treatment Plant, Hong Yu
Theses
Industrial wastewater contains a variety of volatile chemical constituents. The large majority of the volatiles are organics. Many of these volatile or¬ganic compounds (VOCs) end up in the effluent to wastewater treatment plants. It is necessary to estimate the emission of the VOCs from sewerage plants in order to study the fate of these volatile organic compounds.
This study focuses on the estimation and comparison of the emission of 28 volatile organic compounds from the water and air in four operation units of Linden Roselle Sewerage Authority (LRSA) wastewater treatment plant. The removal rates of these target compounds have been …
The Probe, Issue 117 - December 1991
The Probe, Issue 117 - December 1991
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE
National Animal Damage Control Association
DECEMBER 1991
Evaluating Performance of the Soft-Catch® Coyote Trap
Calendar of Upcoming Events
President Bush Has Unique Style Of Animal Damage Control
Soft-Catch® Traps...
Animal Damage Control in the News:
It’s the “Gull War” at Kennedy International
Cyanide Baits May Be Allowed on BLM Land
Pocket Gopher Control Evaluation at Rogue River National Forest
“USA” Today Lists Predator Protection Tips
International Resolution Supports Regulated Trapping
Over Forty NADCA Members Attend 5th Eastern Wildlife Damage Control Conference
USDA Is Helping to Limit Rabies Outbreak In Texas
Wildlife Veterinarians Adopt Position Statement on Oral Rabies …
Recycling: Knowledge, Demographic & Motivational Factors Which Differentiate Behavior, David Ducoff
Recycling: Knowledge, Demographic & Motivational Factors Which Differentiate Behavior, David Ducoff
Masters Theses & Specialist Projects
This study focuses on motivation -Involved in recycling behavior among residents of Muhlenberg County, Kentucky. Knowledge of recycling and how it was acquired, and the variables of environmental concern, economic incentive and the peer pressure were compared so that behavior could be distinguished that separated recyclers from nonrecyclers. Talcott Parsons' work in action theory and George Homans' work in exchange theory provide the theoretical foundation for my study. The research was approached in a qualitatively based design with interviews of twenty area residents. Demographic factors of age, sex, religious affiliation, church attendance, education and income of respondents were solicited. In …
Water Current, Volume 23, December 1991
Water Current, Volume 23, December 1991
Water Current Newsletter
Massengale Presents Challenges at University Water Policy Forum
Governor Nelson Discusses Environmental Concerns at Nebraska Groundwater Foundation Luncheon
Report from the Director: Education and Research High Priorities
Surveys of Water-Related College-Education and Employment in Nebraska
California's Water Problems Explained at NGF Symposium
Cancer and Water Quality, Topic of Seminar
Wetlands Topic for 1992 Nebraska Water Conference
Environmental Cleanup Liabilities Farmers Should Consider
Eight States Evaluated in Groundwater Quality Research
Hungarian Students, Researchers to Collaborate in Environmental Degradation Studies
Environmental Radiocesium In Subarctic And Arctic Alaska Following Chernobyl, M. Baskaran, J. J. Kelley, A. S. Naidu, D. F. Holleman
Environmental Radiocesium In Subarctic And Arctic Alaska Following Chernobyl, M. Baskaran, J. J. Kelley, A. S. Naidu, D. F. Holleman
Environmental Science and Geology Faculty Research Publications
Radiocesium (¹³⁴ Cs and ¹³⁷ Cs) concentrations were measured in soil, plant and wildlife samples from subarctic to arctic Alaska. Concentrations of ¹³⁷ Cs ranged from below detectable or low levels in whale and fish samples to as high as 242 Bq/kg in lichen. For all potential human food items, the radiocesium concentrations measured in this study were below accepted permissible levels for human consumption. Chernobyl-derived radiocesium concentrations ranged from below detectable or low levels in all arctic samples (soil, sediment, lichen, whale, fish and caribou) to 32 Bq/kg in subarctic moss. Therefore the distribution and subsequent deposition of Chernobyl-derived …
Preliminary Epidemiological Interpretation Of The Intrinsic And Extrinsic Factors Contributing To The Coverage And Participation Rates Of The Vaccination Program In Arssi, Ethiopia, Muchie Kidanu
Electronic Theses and Dissertations
Many immunization programs in developing countries arr now undergoing a period of rapid utilization. Innovative strategies, such as immunization holidays, are being tried. Political commitment and enthusiasm are high. There is a strong desire by health professionals to protect the lives of many children from the untimely death and/or disability resulting from infectious diseases preventable by vaccination.
Evaluation of an immunization program can benefit other elements of the health system, particularly those that are not amenable to objective evaluation as immunization. In this case, immunization can serve as an indicator of the overall performance of the health system. The problems …