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Articles 43411 - 43440 of 52596
Full-Text Articles in Entire DC Network
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 …
Twig, Branch, And Stem Diseases Of Pine, John R. Hartman
Twig, Branch, And Stem Diseases Of Pine, John R. Hartman
Agriculture and Natural Resources Publications
Tip Blight
Tip blight, caused by the fungus Sphaeropsis sapinea (formerly Diplodia pinea), is a serious disease of mature Austrian, Scots (Scotch), and Mugo pines in Kentucky. In the landscape, tip blight is normally not observed until pines reach about 12 years old and begin to bear cones. Severe infections year after year can greatly weaken and eventually kill affected pines.
Anthracnose Diseases Of Shade Trees, John R. Hartman
Anthracnose Diseases Of Shade Trees, John R. Hartman
Agriculture and Natural Resources Publications
Anthracnose diseases occur on many landscape trees; though, in Kentucky, they tend to be most severe on ash, dogwood, maple, oak, and sycamore. They are typically foliar diseases but twigs, branches, and buds may also be affected. Twigs and branches may develop cankers or dead areas that girdle the stem, causing death of distal parts of the stem. Premature leaf drop commonly occurs on infected trees. Anthracnose is not fatal (except for dogwoods in some circumstances); however, severe defoliation from anthracnose year after year can seriously weaken trees. Weakened trees become more susceptible to environmental stresses and secondary pathogens.
Dogwood …
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. …
Environmental Management And Treatment Of Oily Water In Abu Dhabi Offshore Oil Fields, Mohamed Ali Saeed Al-Nuaimi
Environmental Management And Treatment Of Oily Water In Abu Dhabi Offshore Oil Fields, Mohamed Ali Saeed Al-Nuaimi
Theses
The purpose of this environmental case study is to evaluate the oily water treatment efficiency in the separation of oil from water in relation to the environmental impact to the marine environment. This study covers offshore oil fields production facilities in the Abu Dhabi Emirate. The study discusses the most commonly used methods in the separation of oily water disposals. It highlights in detail the different types of treatment systems currently in use at Abu Dhabi offshore oil fields production facilities. Emphasis is given to the performance of each treatment system, its deficiencies and possible areas of improvement.
The study …
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 …
Continuous Monitoring Of Volatile Organic Compounds Using Microtrap Based Gas Chromatographic Systems, Yonghua Xu
Continuous Monitoring Of Volatile Organic Compounds Using Microtrap Based Gas Chromatographic Systems, Yonghua Xu
Dissertations
Continuous analysis allows a representative portion of a sample to flow continuously through an analytical instrument, which gives analytical information with little or no delay in time. A microtrap is a small diameter tube packed with adsorbents in series. When a gaseous sample containing volatile organic compounds (VOCs) flows through the microtrap, the VOCs can be trapped selectively by adsorbents. Then a pulse of electrical current is applied to the microtrap. This rapid heating results in a desorption that can act as a sharp injection for GC separation. Thus the microtrapped sample is the total amount of VOC present in …
Oxidation Of Isobutane And Isobutene Reaction Pathways And Detailed Mechanism, Chiung-Ju Chen
Oxidation Of Isobutane And Isobutene Reaction Pathways And Detailed Mechanism, Chiung-Ju Chen
Theses
A reaction mechanism consisting of 248 elementary reactions and 138 species has been developed to model experimental systems - decomposition of 2,2,3,3 tetramethylbutane in the presence of oxygen and oxidation of isobutene. This elementary reaction mechanism based on two important reaction systems: tert-butyl radical with O2 and allylic isobutenyl radical with O2, plus their subsystems, such as isobutene + HO2, isobutene + OH and allylic isobuteny1hydroxy + O2. Thermochernical kinetic parameters are developed for each elementary reaction and a chemical activation kinetic analysis using quantum RiceRamsperger-Kassel (QRRK) theory for k(E) and modified strong …
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 …
Longevity Of Woodhouse's Toad In Colorado, Richard M. Engeman, E. Marie Engeman
Longevity Of Woodhouse's Toad In Colorado, Richard M. Engeman, E. Marie Engeman
United States Department of Agriculture Wildlife Services: Staff Publications
Little is known about the longevity of amphibians in nature. Records from captive specimens have demonstrated life spans of 10 to 20 yr for a number of anuran species, including 36 yr for Bufo bufo (Duellman WE, Trueb L. 1986. Biology of Amphibians. New York: McGraw-Hill. 670 p). Here, we report on a male Woodhouse's toad (Bufo woodhousii) which appeared in 1978, and has apparently remained since, in a basement window well of a brick home in an unincorporated western suburb of Denver, Colorado (T3S, R69W, 530). In the intervening years no other toads have been observed in …
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 …
The Two Rivers And The Lands Between: Mesopotamia And The International Law Of Transboundary Waters, Joseph W. Dellapenna
The Two Rivers And The Lands Between: Mesopotamia And The International Law Of Transboundary Waters, Joseph W. Dellapenna
Brigham Young University Journal of Public Law
No abstract provided.
The Federal Reserved Rights Doctrine And Practicably Irrigable Acreage: Past, Present And Future, Jennele Morris O'Hair
The Federal Reserved Rights Doctrine And Practicably Irrigable Acreage: Past, Present And Future, Jennele Morris O'Hair
Brigham Young University Journal of Public Law
No abstract provided.
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.
Las Vegas And The Virgin River: Cashing In On An Unclaimed Jackpot In The Southern Desert, Ryan Dennett
Las Vegas And The Virgin River: Cashing In On An Unclaimed Jackpot In The Southern Desert, Ryan Dennett
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 …
Growth And Yield Of Snap Beans (Phaseolus Vulgaris L.) As Affected By Shelterbelts And Planting Dates, Mohd Nazip Suratman
Growth And Yield Of Snap Beans (Phaseolus Vulgaris L.) As Affected By Shelterbelts And Planting Dates, Mohd Nazip Suratman
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
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?
Wrestling With The Bear: A Compact Approach To Water Allocation, Jeff Boyce
Wrestling With The Bear: A Compact Approach To Water Allocation, Jeff Boyce
Brigham Young University Journal of Public Law
No abstract provided.
Introduction: Multijurisdictional Water Resources Regulation, Ray Jay Davis
Introduction: Multijurisdictional Water Resources Regulation, Ray Jay Davis
Brigham Young University Journal of Public Law
No abstract provided.
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.