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Articles 20851 - 20880 of 25021
Full-Text Articles in Entire DC Network
The Personal Approach To Put Theory Into Practice, Delwin E. Benson
The Personal Approach To Put Theory Into Practice, Delwin E. Benson
Triennial National Wildlife and Fisheries Extension Specialists Conference: 8th (1996)
Personal traits and techniques of facilitators enable theory to affect practice. Facilitators are guides working within the ethos of the situation to reduce stresses, open the minds of participants, and clear the paths of communication to find what can be accomplished instead of preserving the status quo of what cannot be accomplished. Facilitators should leave their biases at the door and help others to do the same, except for upholding two considerations: 1) the integrity of resources in question; and 2) the dignity of persons who question. Abilities to do the right job are as important as doing the job …
Workshop Evaluations
Triennial National Wildlife and Fisheries Extension Specialists Conference: 8th (1996)
Thirty workshop evaluations were returned. the following graphs and tables summarize the responses.
The Use Of Agricultural Limestone And Gypsum In Ponds, Forrest Wynne
The Use Of Agricultural Limestone And Gypsum In Ponds, Forrest Wynne
Triennial National Wildlife and Fisheries Extension Specialists Conference: 8th (1996)
Ponds built in areas that have acid soils and soft water may not always perform well for fish production. Such ponds may benefit from liming if the water has a total alkalinity of less than 20 mg/1 (20 ppm). If alkalinity is more than 20 mg/1, liming may not be beneficial. Alkalinity measures the buffering capacity of the water and is usually a good indicator of productivity. Carbonates, bicarbonates, hydroxides, phosphates, and organic substances are the main components of water alkalinity. Water hardness is caused by calcium, magnesium, iron, and aluminum salts, most often in the form of carbonates, sulfates, …
Walk-In Hunting Area Program In Kansas, Charles D. Lee
Walk-In Hunting Area Program In Kansas, Charles D. Lee
Triennial National Wildlife and Fisheries Extension Specialists Conference: 8th (1996)
Hunting license sales in Kansas are declining. Hunters often cite the lack of access as a reason for no longer hunting. Some landowners are seeking opportunities to use wildlife and other natural resources as a source of supplemental income. Kansas Department of Wildlife and Parks (KDWP) initiated a pilot program to lease land and make it available for public hunting. In 1995 KDWP leased 10,345 acres of land from 46 different landowners at a lease cost of $20,400. This lease program follows a simple concept by which landowners receive a fee from the Department to allow people to hunt their …
Extension Program Development: Evolution In Changing Environments, Ronald A. Howard Jr.
Extension Program Development: Evolution In Changing Environments, Ronald A. Howard Jr.
Triennial National Wildlife and Fisheries Extension Specialists Conference: 8th (1996)
As I was developing these brief comments, I considered using the title, "We're not in Kansas Anymore, Toto." While some of the things we need to do are the same ones we have been doing for the past 30 years, others are quite different—primarily the environments, audiences, or types of requests. Some of that is adaptive reiteration. We have needed to learn new things to treat the needs of new audiences. Perhaps we use wood duck nest structure experience to assist an urban homeowner in placing bat boxes, or answer questions about how to colonize a pond with snakes and …
Workshop Expectations And Gpra Evaluation And Accountability, Ralph Otto
Workshop Expectations And Gpra Evaluation And Accountability, Ralph Otto
Triennial National Wildlife and Fisheries Extension Specialists Conference: 8th (1996)
Because of a health-related problem, Dr. Otto was unable to attend the workshop; therefore, an overview of his suggested comments was presented by Jim Miller as follows:
Our expectations for this Eighth National Extension Wildlife and Fisheries Specialists Workshop are that it will provide an opportunity for the professionals in attendance to assess current programs and capabilities; address changing audiences and their need for educational programs; evaluate changes in the land grant university system and in their agency; and proactively make needed changes to ensure that their educational programs continue to be relevant to Society's needs now and in the …
Maintaining Conventional Septic Systems, William O. Thom, Pat Keefe
Maintaining Conventional Septic Systems, William O. Thom, Pat Keefe
Agriculture and Natural Resources Publications
Septic systems are used in Kentucky where municipal sewage treatment is not available. They are an effective, longstanding method of collecting, treating, and disposing of homeowner wastewater, provided they are properly sited, installed, and maintained. However, a well-sited, properly sized and installed system will fail if not properly maintained. A failed septic system creates problems such as noxious odors, lowered property values, surface water contamination, and groundwater pollution and may be a health hazard. Repair and replacement costs are considerable. Additional information on assessing septic system performance and reducing the potential risk of groundwater contamination is available from a KY-A-Syst …
Metal-Resistance Genetically Engineered Bacteria, Sylvia Daunert, Donna Scott, Sridhar Ramanathan
Metal-Resistance Genetically Engineered Bacteria, Sylvia Daunert, Donna Scott, Sridhar Ramanathan
KWRRI Research Reports
Bacterial-based electrochemical and optical sensing systems that respond in a highly selective and sensitive manner to antimonite and arsenite have been developed. This was accomplished by using genetically engineered bacteria bearing one of two plasmids constructed for our studies. The first plasmid, pBGD23, contains the operator/promoter region (O/P) and the gene of the ArsR protein from the ars operon upstream from the β-galactosidase gene. In the absence of antimonite/arsenite, ArsR binds to the 0/P site and prevents the transcription of the genes for ArsR and β-galactosidase, thus blocking expression of these proteins. When antimonite or arsenite is present in the …
Water Current, Volume 28, No. 3, June 1996
Water Current, Volume 28, No. 3, June 1996
Water Current Newsletter
Water Resources Tour to Explore Republican River Basin
From the Director: Summer Brings Flurry of Grant-Related Activities
Of Groundwater, Surface Water and Fish, the 94th Nebraska Legislature Adjourns
Water Rights Key Issue for Missouri Basin Tribes
Thorson Defines Challenge for Missouri River Basin
Missouri River Endangered
New Video Features Runoff Pollution
Nebraska Water News
Platte Seminar Video Tapes Available
Directory Lists Nebraska Contacts
Kuzelka Recognized For Groundwater Efforts
Three Respondents Win Water Bottles
Web Site Expanded
Wetlands Hotline Operated by EPA
Sheffield Selected to Achievement Hall
Report Examines Pesticides in Stream
31 Counites to Offer Pesticide Container Recycling
Logging Labor On Vanikoro, Solomon Islands: The Achievements Of “The Most Feeble In The Commercial World,” 1923-1964, Judith A. Bennett
Logging Labor On Vanikoro, Solomon Islands: The Achievements Of “The Most Feeble In The Commercial World,” 1923-1964, Judith A. Bennett
Pacific Studies
No abstract provided.
The Regulation And Development Of Bioremediation, Susan J. Timian, D. Michael Connolly
The Regulation And Development Of Bioremediation, Susan J. Timian, D. Michael Connolly
RISK: Health, Safety & Environment (1990-2002)
The authors describe how federal statutes regulating hazardous wastes create both incentives and disincentives for exploiting the large potential of bioremediation. Ultimately, they argue for regulation attending more to comparative risks and costs.
Application Of Tube Settlers In Secondary Wastewater Treatment, Abdulsalam Mohamed Saleh Kamalpoor
Application Of Tube Settlers In Secondary Wastewater Treatment, Abdulsalam Mohamed Saleh Kamalpoor
Theses
Secondary sedimentation is one of the most commonly used unit operations in wastewater treatment plants. It is customary designed to achieve solids separation from biologically treated effluent through clarification of biological solids and thickening of sludge. As treatment plants receive increasingly high wastewater flow, conventional sedimentation tanks suffer from overloading problems which result in poor performance. Inclined plate settlers, a form of tube settlers, may have good potential in upgrading sedimentation tanks. This study was conducted to examine the possibility of applying inclined plate settlers in secondary sedimentation in order to upgrade conventional rectangular sedimentation tanks and improve their performance. …
Hepatic Cytochromes P450 Enzyme Activities Of Uae Coastal Rabbit Safi Fish Siganus Canaliculatus, Amna Mana Al-Otaiba
Hepatic Cytochromes P450 Enzyme Activities Of Uae Coastal Rabbit Safi Fish Siganus Canaliculatus, Amna Mana Al-Otaiba
Theses
The cytochrome P450 dependent metabolism of benzo(a)pyrene and other xenobiotics has been investigated in liver microsomes prepared from a local marine Safi fish Siganus canaliculatus caught from the Arabian Gulf of United Arab Emirates. The Safi fish was found to have a well developed liver microsomal monooxygenase system consisting of cytochrome P450, cytochrome b5 and NADPH-cytochrome c reductase. The fish microsomal enzyme system was able to metabolise benzo(a)pyrene, 7-ethoxycoumarin and 7- ethoxyresorufin. Male fish were found to exhibit a higher monooxygenase activity than female fish. Treatment of fish with β-naphthoflavone was found to induce (2-4 fold) the activities of aryl …
Environmental Study Indoor And Outdoor Of The Abu Dhabi Compost Plant, Jaber Eidha S. Aljabri
Environmental Study Indoor And Outdoor Of The Abu Dhabi Compost Plant, Jaber Eidha S. Aljabri
Theses
The transformation of municipal solid waste into compost is of double interest: on the one hand, it helps to avoid the deficiencies of natural manure, and on the other it eliminates this major polluting agent which is increasing progressively as a consequence of rising populations.
Domestic waste produced per person per annum amounts to 730 kg in Abu Dhabi city. Based on a population in 1992 of 574,745, this gives a current daily refuse collection that amounts to 1120 tons. Refuse is reported to contain a high proportion of organic materials and therefore to be suitable for recycling to produce …
Fluorescent Labeling Technique And Dna Amplification By The Polymerase Chain Reaction For The Detection Of Human Malaria Parasites., Maryam Mohd Ai-Shaikh Omer Ai-Ameri
Fluorescent Labeling Technique And Dna Amplification By The Polymerase Chain Reaction For The Detection Of Human Malaria Parasites., Maryam Mohd Ai-Shaikh Omer Ai-Ameri
Theses
The polymerase chain reaction (PCR) and fluorescence staining based diagnosis of Malaria infection was attempted. 187 samples in two groups: 135 and 52 patients Attending the Malaria Clinic (preventive Medicine and Al-Ain Hospital, UAE) were Collected Two PCR systems; using small subunit ribosomal RNA (ssrRNA) based primers And merozoite surface antigen (MSP) based primers were assessed, taking the Giemsa Stain as the reference test.
The re sults of PCR using the merozoite surface antigen (MSP) primers specific for Pfalciparum, proved to be specific and accurate. These results were analyzed by agarose gel electrophoresis (AGE) and polyacrylamide gel electrophoresis (page) stained …
Stratospheric Ozone Layer Depletion : A Computer Aided Case Study, James M. Lipuma
Stratospheric Ozone Layer Depletion : A Computer Aided Case Study, James M. Lipuma
Theses
In industries today, there is a desire to stop pollution before it starts, through the process of pollution prevention. Unfortunately, many university level students are not exposed to the thinking process involved in environmental problem solving early enough in their academic career, if they are exposed to it at all. The goal of this thesis is to develop and to evaluate an interdisciplinary case-study about the depletion of the stratospheric ozone layer by chlorofluorocarbons (CFCs). This case-study will be used to teach first year chemistry students about environmental problem solving. The case study was assembled from existing literature according to …
Pollution Prevention In The New Jersey Chemical Industry : Motivations And Barriers To Commitment, Judith A. Thornton
Pollution Prevention In The New Jersey Chemical Industry : Motivations And Barriers To Commitment, Judith A. Thornton
Theses
This study of the New Jersey Chemical Industry identifies the primary elements that lead to or inhibit company commitments to pollution prevention. A direct measure of facility pollution prevention commitment is developed that takes into account: organizational support attributes, past reductions achievements, current methods implementation, process reduction goals, and special environmental initiatives. The "P2 Commitment Index" allows for categorization of facilities so that the needs and interests of varying groups may be differentiated.
Higher level commitments are associated with: establishment of company pollution prevention policy, setting of prioritized facility goals, and measurement and reporting on pollution prevention progress. Facilities at …
Identification Of Optimal Locations For Sampling Ground Water For Pesticides In The Mississippi Delta Region Of Eastern Arkansas, H. S. Lin, H. D. Scott, J. M. Mckimmey
Identification Of Optimal Locations For Sampling Ground Water For Pesticides In The Mississippi Delta Region Of Eastern Arkansas, H. S. Lin, H. D. Scott, J. M. Mckimmey
Arkansas Water Resources Center Technical Reports
Concerns about the presence of pesticides in the Mississippi River Valley alluvial aquifer in the Arkansas Delta have generated the need to develop a map of ground water vulnerability for this region comprised of approximately 10 million acres. Based on the availability of digital data and the scale of this study. we used a modified Pesticide DRASTIC model in a GRASS GIS environment to identify areas that were physically more sensitive to pesticide contamination than other areas within the Delta. Spatial distribution of pesticide loading was estimated from pesticide application rates in different crops and crop distribution map interpreted from …
Interstate Compacts That Are For The Birds: A Proposal For Reconciling Federal Wetlands Protection With State Water Rights Through Federal-Interstate Compacts, Erik G. Davis
Brigham Young University Journal of Public Law
No abstract provided.
Environmentalism In The United States: An Evolving Perspective, Mary Snow
Environmentalism In The United States: An Evolving Perspective, Mary Snow
Masters Theses & Specialist Projects
The purpose of this study is to investigate environmentalism in the United States. The dimension of perspective receives considerable attention. The prevailing perspective by a society regarding the importance of the health of the natural world greatly influences the degree of support of environmental organizations, environmental policy, as well as the direction charted for the future of that society. The perspectives of the Native Americans and the dominant European cultures which arrived in North America are presented and contrasted. It is supposed that the perspective which prevails in the United States regarding the importance of the natural world is evolving. …
Ecology, Economy And Ecotourism: Sustaining People And The Environment, Richard Snow
Ecology, Economy And Ecotourism: Sustaining People And The Environment, Richard Snow
Masters Theses & Specialist Projects
Tourism is the world's largest industry. The fastest growing segment of the travel and tourist trade is ecotourism. The concept of sustainable development insists that humans cooperate with nature in the search for an ecological economy which can support present and future populations. Ecotourism attempts to attain this elusive goal by preserving ecosystems while generating revenue for local communities. In this study, the researcher examines the positive and negative effects of ecotourism on people, culture, and landscape. An analysis of tourism data seems to suggest that developing countries, which are popular ecotour destinations, are benefitting economically and ecologically from properly …
Center For Sustainable Agricultural Systems Newsletter, May/June 1996
Center For Sustainable Agricultural Systems Newsletter, May/June 1996
Center for Sustainable Agricultural Systems: Newsletter (1993–2000)
Contents: New CSAS Web Page Field Day On Specialty Crops Windbreak Evaluation Software Integrated Farm Update: Cover Crop Research Teaching Sustainability at a Distance President's Task Force Says U.S. Ag Must Be Sustainable Exchange Program for Organic Farmers Agroforestry for Farms, Ranches, and Communities Windbreaks for Corn?
International Water Law And The Protection Of River System Ecosystem Integrity, A. Dan Tarlock
International Water Law And The Protection Of River System Ecosystem Integrity, A. Dan Tarlock
Brigham Young University Journal of Public Law
No abstract provided.
A Comparative Analysis Of Viable Solar Thermal Technologies For Solar Field Development And Commercialization, Sean M. Crawford
A Comparative Analysis Of Viable Solar Thermal Technologies For Solar Field Development And Commercialization, Sean M. Crawford
UNLV Theses, Dissertations, Professional Papers, and Capstones
Diminishing fossil fuels and concerns about the quality of the environment has lead the recent drive to establish a commercialized solar field in Southern Nevada. The competing solar thermal technologies for the Solar Enterprise Zone (SEZ) are Parabolic Dish-Stirling, Central Receiver Power Towers, and Parabolic Trough Systems. It is important to compare the technologies based on the guidelines set by the Corporation for Solar Technology and Renewable Resources. The variables weighted are solar conversion performances, initial capital investment, operation and maintenance costs, water and land use, and electricity production costs. All technologies have been proven to viable power sources and …
Second Growth Forest As Potential Marten Habitat In Western Newfoundland: An Examination Of Forest Habitat Structure And Microtine Abundance, Brian R. Sturtevant
Second Growth Forest As Potential Marten Habitat In Western Newfoundland: An Examination Of Forest Habitat Structure And Microtine Abundance, Brian R. Sturtevant
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The American marten (Martes americana) is associated with large tracts of relatively undisturbed, mature coniferous forests. I examined coarse woody debris (CWD) structure and small mammal abundance with respect to forest age and stem structure within second-growth forests, in comparison with old-growth stands in western Newfoundland. Results suggest that a critical change in marten habitat quality may occur at stand senescence, due to decreased tree competition, more complex subcanopy structure, and increased meadow vole (Microtus pennsylvanicus) abundance.
Analysis of stem structure within a chronosequence of 19 second-growth stands indicated high intertree competition, with dense canopy closure …
A Survey Of Employees Of The United States Department Of Agriculture's Animal Damage Control Program, Susan A. Schroeder
A Survey Of Employees Of The United States Department Of Agriculture's Animal Damage Control Program, Susan A. Schroeder
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This study examined the attitudes of employees of the United States Department of Agriculture's Animal Damage Control (ADC) Program. This research examined ADC employees' attitudes about wildlife, the ADC program and ADC employment, wildlife damage management methods, euthanasia and the killing process, and the role of various public and private groups on ADC policy. This study also applied the theory of organizational capture to the ADC program to test its utility in explaining the attitudes and behaviors of employees. Results were based on a survey of ADC employees conducted in January 1995.
Survey responses were analyzed to explore associations between …
Extraction, Recovery And Separation Of Some Organic And Inorganic Pollutants By Polyurethane Foams And Other Extracting Agents, Mahboob Hassan Saleh
Extraction, Recovery And Separation Of Some Organic And Inorganic Pollutants By Polyurethane Foams And Other Extracting Agents, Mahboob Hassan Saleh
Theses
Many substances pollute the marine and air environments but non-biodegradable compounds are the most dangerous. Heavy metals and most of the pesticides are known for their high toxicity. Mercury and lead in particular tend to accumulate in liver and kidney and inhibit the biosynthesis of heme protein because of their affinity for thiol and phosphate containing ligands. Thus, it affects the permeability of the membranes of kidney, liver and brain cells. Soluble inorganic mercury (II) species can be transformed into methylmercury under aerobic conditions by the actions of microorganisms. The target organ of methylmercury in humans is the brain where …
A Test Of An Alternate Calibration Matrix For Niosh Method 7300, Robert T. Vitek
A Test Of An Alternate Calibration Matrix For Niosh Method 7300, Robert T. Vitek
Community & Environmental Health Theses & Dissertations
The purpose of this study was to determine if the analytical results (when determining cadmium, lead, and zinc concentrations) for air sample filters prepared and analyzed according to N:OSH Method 7300, differ significantly, from those obtained when the instrument is calibrated using EPA Method 200.7 acid matrix standards. The null hypothesis was that no statistically significant difference, measured at the 95% confidence level, would exist between results obtained from the two calibration standards. Careful standard and sample preparation, the use of an internal standard, and the application of working standard and working internal standard correction factors served to isolate the …
Evaluation Of Propane Exploders As White-Tailed Deer Deterrents, J. L. Belant, T. W. Seamans, C.P. Dwyer
Evaluation Of Propane Exploders As White-Tailed Deer Deterrents, J. L. Belant, T. W. Seamans, C.P. Dwyer
United States Department of Agriculture Wildlife Services: Staff Publications
In response to increased white-tailed deer (Odocoileus virginianus) depredation of agricultural crops and encroachment on airports, we evaluated the effectiveness of systematic and motion-activated propane exploders as deer frightening devices. We conducted three experiments in a 2200 ha fenced facility in northern Ohio with high (91/km2) deer densities during 1994-1995. Systematic exploders were calibrated to detonate once at 8 to 10 min intervals, whereas motion-activated exploders detonated 8 times/deer intrusion. Systematic propane exploders were generally ineffective, deterring deer from corn for <2 days only, whereas motion-activated exploders repelled deer for O-6 weeks. Repellency of motion-activated exploders varied seasonally, possibly in response to variations in deer density, availability of alternate food, or reproductive and social behavior. We recommend motion-activated exploders over systematic exploders as deer frightening devices for crop damage mitigation and on airports; however, systematic exploders may have utility for short-term (a few days) use.
Report Of Significant Findings--Las Vegas Bay/Boulder Basin Investigations, James F. Labounty, Michael Horn, Bureau Of Reclamation
Report Of Significant Findings--Las Vegas Bay/Boulder Basin Investigations, James F. Labounty, Michael Horn, Bureau Of Reclamation
Publications (WR)
Field sampling was carried out between 0830 and 1500 beginning at the confluence of Las Vegas Wash and the Inner Las Vegas Bay. Ten (10) locations were sampled, each in a similar manner. Locations of sampling stations are in line from the Wash-Bay confluence to a point midway between Saddle and Black Islands. In addition, sampling was done at a location midway between Sentinel Island and the base of Fortification Hill, and at the buoy line in front of Hoover Dam. Sampling stations are labeled from LV01, at Wash-Bay confluence, to LV17 at Hoover Dam. A significant data collection point …