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Articles 1 - 30 of 454
Full-Text Articles in Physical Sciences and Mathematics
Quantification Of Plasma And Egg 4,4′ Dinitrocarbanilide (Dnc) Residues For The Efficient Development Of A Nicarbazin-Based Contraceptive For Pest Waterfowl, John J. Johnston, Walter M. Britton, Alexander Macdonald, Thomas M. Primus, Margaret J. Goodall, Christi A. Yoder, Lowell A. Miller, Kathleen A. Fagerstone
Quantification Of Plasma And Egg 4,4′ Dinitrocarbanilide (Dnc) Residues For The Efficient Development Of A Nicarbazin-Based Contraceptive For Pest Waterfowl, John J. Johnston, Walter M. Britton, Alexander Macdonald, Thomas M. Primus, Margaret J. Goodall, Christi A. Yoder, Lowell A. Miller, Kathleen A. Fagerstone
USDA Wildlife Services: Staff Publications
Urbanization and associated landscaping has increased the abundance of year-round habitat for waterfowl, resulting in vegetation damage, loss of recreational activities, air transportation mishaps and health hazards. As part of a research program to develop socially acceptable techniques for management of pest bird populations, we are evaluating nicarbazin as a contraceptive in pest and surrogate avian species. As reproductive studies with Canada Geese (Branta canadensis) are tedious due to the difficulty of conducting controlled field studies and/or breeding geese in captivity, we evaluated the effects of oral nicarbazin administration on the production and hatchability of chicken studies are …
Evaluation Of Striped Bass Stocks In Virginia, Monitoring And Tagging Studies, 1999-2003 Annual Report, 1 September 2000 - 31 October 2001, Philip W. Sadler, Robert J. Latour, Robert E. Harris, John E. Olney
Evaluation Of Striped Bass Stocks In Virginia, Monitoring And Tagging Studies, 1999-2003 Annual Report, 1 September 2000 - 31 October 2001, Philip W. Sadler, Robert J. Latour, Robert E. Harris, John E. Olney
Reports
This report presents the results of striped bass (Marone saxatilis) tagging and monitoring activities in Virginia during the penod 1 September 2000 through 31 October 2001. It includes an assessment of the biological characteristics of striped bass taken from the 2001 spring spawning run, estimates of annual survtval based on annual spring tagging, and the results of the fall 2000 directed mortality study that is cooperative with the Maryland Department of Natural Resources. The information contained in this report is required by the Atlantic States Marine Fisheries Commission and is used to implement a coordinated management plan for striped bass …
Nuclear Criticality Analyses Of Separations Processes For The Transmutation Fuel Cycle: Quaterly Report, William Culbreth, Pang Tao
Nuclear Criticality Analyses Of Separations Processes For The Transmutation Fuel Cycle: Quaterly Report, William Culbreth, Pang Tao
Separations Campaign (TRP)
During the first quarter of the work, the tasks included training students in the use of Monte Carlo codes used in radiation transport studies and the assessment of neutron multiplication factors for specific problems outlined by ANL-East through Drs. Laidler and Vandegrift.
The proposal also included objectives for the first year of work on this project, as listed below. The work conducted in the first quarter of the project was in partial completion of these objectives.
• Train UNLV students in the use of SCALE and/or MCNP for the assessment of nuclear criticality.
• Assess neutron multiplication factor, keff …
Radiation Transport Modeling Of Beam-Target Experiments For The Aaa Project: Quaterly Report, William Culbreth
Radiation Transport Modeling Of Beam-Target Experiments For The Aaa Project: Quaterly Report, William Culbreth
Reactor Campaign (TRP)
The national development of technology to transmute nuclear waste depends upon the generation of high energy neutrons produced by proton spallation. Proton accelerators, such as LANSCE at the Los Alamos National Laboratory, are capable of producing 800 MeV protons. By bombarding a lead/bismuth target, each proton may generate 500 or more neutrons that can activate fission products or induce the fission of transuranic isotopes.
The Monte Carlo radiation transport code MCNPX developed at LANL is an important tool in the design of transmuter technology. It must be validated, however, for the neutron energy that will be employed. Experiments are being …
Teco: Carbon Monoxide Consumption By Forest And Agroecosystem Soils, Gary M. King
Teco: Carbon Monoxide Consumption By Forest And Agroecosystem Soils, Gary M. King
University of Maine Office of Research Administration: Grant Reports
Carbon monoxide is a more dynamic component of the atmosphere than methane, occurring at a lower concentration but substantially higher flux. CO and hydroxyl radical interact rapidly, affecting a number of atmospheric parameters: the oxidative state of the troposphere; the fate and residence times of methane, non-methane organics and inorganics; tropospheric ozone; and the extent of thermal forcing. Soils consume atmospheric CO, accounting for 10-25% of the global carbon budget, depending on the source estimate. Some of the controls of soil CO uptake and production have been described generally, but much remains unknown. Details of CO uptake in agroecosystems are …
Little Venice Water Quality Monitoring Quarterly Report #1 & 2, Ronald Jones, Joseph N. Boyer
Little Venice Water Quality Monitoring Quarterly Report #1 & 2, Ronald Jones, Joseph N. Boyer
SERC Research Reports
No abstract provided.
Effects Of Binary Combinations Of Herbicides On Freshwater Algae, Jill K. Taylor
Effects Of Binary Combinations Of Herbicides On Freshwater Algae, Jill K. Taylor
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
The Prairie Naturalist Volume 33, No.4 December 2001
The Prairie Naturalist Volume 33, No.4 December 2001
The Prairie Naturalist
SPECIES, SEASON, AND DENSITY OF BURIED SEEDS SURVIVING FOX SQUIRREL DEPREDATION ▪ C. C. Smith, and J. M. Briggs
RELATI0NSHIP OF HYDROLOGICAL CONDITIONS AND POPULATlONS OF BREEDING PIPING PLOVERS ▪ D. S. Licht,
DEMODICOSIS IN A WHITE-TAILED DEER (ODOCOILEUS VIRGINIANUS) IN SOUTH DAKOTA ▪ C. N. Jacques, J. A Jenks. M. B. Hildreth. R. J. Schauer, and D. D. Johnson
SURVEYS OF CALLING AMPHIBIANS IN NORTH DAKOTA ▪ D. H. Johnson, and R. D. Batie
EFFECTS OF HUMAN PRESENCE ON VOCALIZATIONS OF GRASSLAND BIRDS IN KANSAS ▪ S. L Bye, R. J. Robel, and K. E. Kemp
Reviewers 2001
Author …
Water Current, Volume 33, No. 6. December 2001
Water Current, Volume 33, No. 6. December 2001
Water Current Newsletter
• “Daisy Well System” Promising Way for Small Communities to Fight Nitrates by Steve Ress • From the Director • Meet the Faculty • Water and the NRCS…All Encompassing Topics by Steve Chick • Variety and Current Issues Punctuate Spring Water and Natural Resources Seminar by Steve Ress • Integrated Water Management Options in the Nebraska Ground Water Management & Protection Act by J. David Aiken • Arkansas Researchers Study Water Quality on Nebraska Tribal Lands by Ralph Davis and Shelley McGinnis • Platte River Policy Preferences by Raymond J. Supalla • Water News Briefs
Potential Runoff Accumulation In Wheatbelt Towns Of Western Australia, Mahtab Ali, Travis Cattlin, Neil Coles, Sharam Sharafi
Potential Runoff Accumulation In Wheatbelt Towns Of Western Australia, Mahtab Ali, Travis Cattlin, Neil Coles, Sharam Sharafi
Resource management technical reports
Describes an analysis of flood runoff volumes from 16 small, gauged catchments in the agricultural areas of south western Australia. It also describes methods for estimating flood runoff volumes from ungauged catchments. The independent variables found to be statistically significant in explaining the variability in flood runoff volumes from the gauged catchments were catchment area, mean annual rainfall and the percentage of the catchment that was cleared. No soil factor was found to be significant.
Groundwater Study Of The Woodanilling Townsite, Ben Whitfield
Groundwater Study Of The Woodanilling Townsite, Ben Whitfield
Resource management technical reports
A groundwater study was carried out in the townsite of Woodanilling, Western Australia. It aimed to accelerate the implementation of effective salinity management options. The study consisted of a drilling investigation, installation of a piezometer network, groundwater flow modelling and a flood risk analysis.
Groundwater Study Of The Koorda Townsite, Louise Hopgood
Groundwater Study Of The Koorda Townsite, Louise Hopgood
Resource management technical reports
A groundwater study was carried out in the townsite of Koorda. It aimed to accelerate the implementation of effective salinity risk management. The study consisted of a drilling investigation and expansion of a piezometer network, a pumping test, groundwater flow modelling and a flood risk analysis.
Bulletin No. 37: Living Resources And Habitats Of The Lower Connecticut River, Glenn D. Dreyer, Marcianna Caplis
Bulletin No. 37: Living Resources And Habitats Of The Lower Connecticut River, Glenn D. Dreyer, Marcianna Caplis
Bulletins
No abstract provided.
Inside Unlv, Diane Russell, Jennifer Vaughan, Richard Jensen, Mae Worthey-Flennoy
Inside Unlv, Diane Russell, Jennifer Vaughan, Richard Jensen, Mae Worthey-Flennoy
Inside UNLV
No abstract provided.
A Case Study Of The 8 March 1999 Freezing Rain Event For North Platte, Nebraska, Shari Mutchler
A Case Study Of The 8 March 1999 Freezing Rain Event For North Platte, Nebraska, Shari Mutchler
United States Department of Commerce: Staff Publications
During the morning hours of 8 March 1999, freezing precipitation fell over portions of western Nebraska, including the communities of McCook, North Platte and Valentine between midnight and 10:00 A.M. CST. The freezing precipitation resulted in dangerous travel conditions, causing several automobile accidents, along with the delay and temporary closing of area public schools 8 March 1999. The freezing rain changed over to snow later the same morning.
A forecast for snow, rather than freezing precipitation, was issued by the local forecast office. The forecast issued was based predominately on numerical weather prediction guidance, and the observed temperature profile of …
Groundwater Study Of The Wongan Hills Townsite, M Deshon
Groundwater Study Of The Wongan Hills Townsite, M Deshon
Resource management technical reports
A groundwater study was carried out in the townsite of Wongan Hills, Western Australia. It aimed to accelerate the implementation of effective salinity management options. The study consisted of a drilling investigation, installation of a piezometer network, a pumping test, groundwater flow modelling and a flood risk analysis.
Risk Mapping For Northern Kenya And Southern Ethiopia, D. Layne Coppock
Risk Mapping For Northern Kenya And Southern Ethiopia, D. Layne Coppock
Environment and Society Faculty Publications
We used results from 120 group interviews collected in 1998 to quantify how inhabitants across northern Kenya and southern Ethiopia perceive and rank various risks to their livelihoods. We also mapped risk patterns using Global Positioning System (GPS) coordinates. Respondents recognized 15 sources of risk overall, with the most common being reliable access to food and water. Other risks were not mentioned by a majority of respondents and reflected diversity in local situations. Country of residence, wealth class, gender, and predominant means of food production (pastoralism, agro-pastoralism, and farming) influenced risk ranking. For example, wealthy males were most concerned about …
The Progression Of Recycling In Bowling Green, Kentucky, Susan Marklin
The Progression Of Recycling In Bowling Green, Kentucky, Susan Marklin
Masters Theses & Specialist Projects
Recycling is an important issue when dealing with solid waste. It keeps many tons of garbage out of our landfills and prolongs landfill life. Although many people in the Bowling Green area participate in the mandatory recycling program, there are still many who do not. The number of people who participate in the program has steadily grown over the past five years; however, there are still many people who need to get involved. This research argues that much effort has been put into recycling in recent years at the global, national, and local level. However, it also argues that even …
Three Dimensional Hydrodynamic Modeling Study, Craney Island Eastward Expansion, Lower James River And Elizabeth River, Virginia, Harry V. Wang, S. C. Kim, John D. Boon, A. Y. Kuo, G. M. Sisson, J. M. Brubaker, J. P-Y. Maa
Three Dimensional Hydrodynamic Modeling Study, Craney Island Eastward Expansion, Lower James River And Elizabeth River, Virginia, Harry V. Wang, S. C. Kim, John D. Boon, A. Y. Kuo, G. M. Sisson, J. M. Brubaker, J. P-Y. Maa
Reports
The Craney Island Eastward Expansion Hydrodynamic Model Study was conducted in three phases: 1) model calibration and verification for the Elizabeth River, 2) model testing of four Craney Island expansion options using single variable runs (using a single variable, tidal range, for model input), 3) model testing of two expansion options using historical runs (using multiple variables in real time for model input). The expansion option designs were evaluated for both global and local hydrodynamic change through simulation comparisons with the Base Case condition.
Lort And Young Rivers Catchment : Catchment Appraisal 2001, Jamie Bowyer, Esperance Catchment Support Team (Wa)
Lort And Young Rivers Catchment : Catchment Appraisal 2001, Jamie Bowyer, Esperance Catchment Support Team (Wa)
Resource management technical reports
Using the Rapid Catchment Appraisal process, this report summarises current information for the Lort and Young Rivers Catchment, 75 kilometres west of Esperance in Western Australia. The Rapid Catchment Appraisal (RCA) process is one of the processes included in the strategy to tackle salinity and its management in Western Australia. The RCA process provides a 'snap shot' of information on the risk and impact to agricultural production and natural resources within regional geographic catchments.
Yarra Yarra Catchment : Rapid Catchment Appraisal Report 2001, M Clarke
Yarra Yarra Catchment : Rapid Catchment Appraisal Report 2001, M Clarke
Resource management technical reports
Using the Rapid Catchment Appraisal process, this report summarises current information for the Yarra Yarra Catchment, Northern Agricultural Region in Western Australia. The Rapid Catchment Appraisal (RCA) process is one of the processes included in the strategy to tackle salinity and its management in Western Australia. The RCA process provides a 'snap shot' of information on the risk and impact to agricultural production and natural resources within regional geographic catchments.
Ecological Characterization Of Stormwater Detention Ponds In Virginia's Coastal Plain, Rebecca Jo Thomas, Carl H. Hershner
Ecological Characterization Of Stormwater Detention Ponds In Virginia's Coastal Plain, Rebecca Jo Thomas, Carl H. Hershner
Reports
No abstract provided.
Comparison Of Instream Methods For Measuring Hydraulic Conductivity In Sandy Streambeds, Matthew K. Landon, David L. Rus, F. Edwin Harvey
Comparison Of Instream Methods For Measuring Hydraulic Conductivity In Sandy Streambeds, Matthew K. Landon, David L. Rus, F. Edwin Harvey
School of Natural Resources: Faculty Publications
Streambed hydraulic conductivity (K) values were determined at seven stream transects in the Platte River Basin in Nebraska using different instream measurement techniques. Values were compared to determine the most appropriate technique(s) for use in sandy streambeds. Values of K determined from field falling- and constant-head permeameter tests analyzed using the Darcy equation decreased as permeameter diameter increased. Seepage meters coupled with hydraulic gradient measurements failed to yield K values in 40% of the trials. Consequently, Darcy permeameter and seepage meter tests were not preferred approaches. In the upper 0.25 m of the streambed, field falling- and constant-head permeameter tests …
Groundwater Study Of The Mukinbudin Townsite, F Lewis
Groundwater Study Of The Mukinbudin Townsite, F Lewis
Resource management technical reports
A groundwater study was carried out in the townsite of Mukinbudin, Western Australia. The town does not currently have a salinity problem, but the future risk is not known. It aimed to accelerate the implementation of effective salinity management options. The study consisted of a drilling investigation, installation of a piezometer network, groundwater flow modelling and a flood risk analysis.
Groundwater Study Of The Mullewa Townsite, Russell John Speed
Groundwater Study Of The Mullewa Townsite, Russell John Speed
Resource management technical reports
A groundwater study was carried out in the townsite of Mullewa, Western Australia. It aimed to accelerate the implementation of effective salinity management options. The study consisted of a drilling investigation, installation of a piezometer network, groundwater flow modelling and a flood risk analysis.
Vegetation Health Analysis (Peel-Harvey Coastal Plain Catchment) : An Impact Study On The Use Of Alkaloam (Bauxite Residue) As A Soil Amendment On Agricultural Land, Garry Heady, Chris Ferreira
Vegetation Health Analysis (Peel-Harvey Coastal Plain Catchment) : An Impact Study On The Use Of Alkaloam (Bauxite Residue) As A Soil Amendment On Agricultural Land, Garry Heady, Chris Ferreira
All other publications
In 1997, a program was established to monitor the long term, (a minimum of 10 years), impacts on remnant native vegetation, of Alkaloam bauxite residue used as a soil amendment on adjacent agricultural land Data collection is to be repeated on an annual basis for the duration of the program. This report presents pre-treatment site and vegetation data for 2001, the fourth year of sampling in the program. Overall results are compared with those from 1997, 1998 and 2000. Descriptions of monitoring sites and an outline of project design and methodology are provided so the report can be read independently …
Non-Target Impacts Of Strychnine Baiting To Reduce Pocket Gopher Populations On Forest Lands In The United States, Dale L. Nolte, Kimberly Wagner
Non-Target Impacts Of Strychnine Baiting To Reduce Pocket Gopher Populations On Forest Lands In The United States, Dale L. Nolte, Kimberly Wagner
USDA Wildlife Services: Staff Publications
Reforestation efforts are often severely hindered on sites that contain high populations of pocket gophers (Thmmysspp). Strychnine baiting is a technique used to suppress pocket gopher populations until seedlings are established. Strychnine bait is applied below ground in pocket gopher burrows, however, primary and secondary hazards remain a concern. A study to assess primary hazards indicated that some individual rodents died post strychnine baiting but there was not a long-term negative impact on non-target rodent populations. Possible secondary hazards reflect the potential for predators OT scavengers to encounter poisoned pocket gophers. Concerns that pocket gophers may surface before …
Environment-Induced Degradation And Crack-Growth Studies Of Candidate Target Materials: Aaa Task-4 Quarterly (September 1 – November 30, 2001) Report, Ajit K. Roy, Brendan O'Toole
Environment-Induced Degradation And Crack-Growth Studies Of Candidate Target Materials: Aaa Task-4 Quarterly (September 1 – November 30, 2001) Report, Ajit K. Roy, Brendan O'Toole
Transmutation Sciences Materials (TRP)
The primary objective of this task is to evaluate the effect of hydrogen on environment-assisted cracking of candidate materials for applications in spallation-neutron-target (SNT) systems such as accelerator production of tritium (APT) and accelerator transmutation of waste (ATW). The materials selected for evaluation and characterization are martensitic stainless steels including HT- 9, EP 823 and 422. The susceptibility to stress corrosion cracking (SCC) and hydrogen embrittlement (HE) of these alloys will be evaluated in environments of interest using tensile specimens under constant load and slow-strain-rate (SSR) conditions. The extent and morphology of cracking of these alloys will further be evaluated …
Development Of A Mechanistic Understanding Of High-Temperature Deformation Of Alloy Ep-823: Task 10, First Quarter Report, Ajit K. Roy, Brendan O'Toole
Development Of A Mechanistic Understanding Of High-Temperature Deformation Of Alloy Ep-823: Task 10, First Quarter Report, Ajit K. Roy, Brendan O'Toole
Transmutation Sciences Materials (TRP)
The objective of this task is to evaluate the elevated temperature tensile properties of Alloy EP-823, a leading target material for accelerator-driven waste transmutation applications. The test material will be thermally treated prior to evaluation of its tensile properties at temperatures relevant to the transmutation applications. The deformation characteristics of tensile specimens, upon completion of testing, will be evaluated by surface analytical techniques including scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The overall results are expected to provide a mechanistic understanding of high-temperature deformation behavior of Alloy EP-823 as a function of heat treatment.
Highlights of Accomplishment
• …
Land Use Of Riparian Zones In Two Communities In The Palcazu Basin, Central Andean Amazon, Peru, Rosa E. Cossio-Solano
Land Use Of Riparian Zones In Two Communities In The Palcazu Basin, Central Andean Amazon, Peru, Rosa E. Cossio-Solano
FIU Electronic Theses and Dissertations
The purpose of this study was to compare outcomes in forms of riparian zone land use between a native and a colonist community of the Palcazu basin in Peru. Data were gathered through a survey of 79 settler households and an ethnographic study. The results showed that riparian zones are highly valued for the conservation of fertile lowland soils by both communities. Statistical tests showed that riparian land use practices (including non-riparian land use) in both communities are similar; only significant differences were found in the percentage of protection fringe forested, in the area of riparian zone under use and …