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Articles 59461 - 59490 of 65131
Full-Text Articles in Entire DC Network
Rapa And Risk, Dalton G. Paxman, Kristin S. Shrader-Frechette, Thomas G. Field Jr.
Rapa And Risk, Dalton G. Paxman, Kristin S. Shrader-Frechette, Thomas G. Field Jr.
RISK: Health, Safety & Environment (1990-2002)
Short article prepared by members of the professional organization Risk Assessment & Policy Association (RAPA) describing the work that will be undertaken by the newly formed group.
Evaluating The Expertise Of Experts, Kristin S. Shrader-Frechette
Evaluating The Expertise Of Experts, Kristin S. Shrader-Frechette
RISK: Health, Safety & Environment (1990-2002)
Professor Shrader-Frechette maintains that a rigid distinction between risk assessment and risk management is unwise. Concerned about procedural fairness, she argues that the public should have a voice in both.
The Separation Of Facts And Values, Arthur Kantrowitz
The Separation Of Facts And Values, Arthur Kantrowitz
RISK: Health, Safety & Environment (1990-2002)
Dr. Kantrowitz maintains that much modern pessimism derives from failure to separate what is from what ought to be and urges that scientific conflicts be resolved as value neutrally as possible.
The Prairie Naturalist Volume 27 , No. 1. March 1995
The Prairie Naturalist Volume 27 , No. 1. March 1995
The Prairie Naturalist
DISTRIBUTION AND STATUS OF SAGE GROUSE IN COLORADO ▪ CE. Braun
BIRDS ASSOCIATED WITH BLACKBIRD SPRING FEEDING SITES IN SOUTH DAKOTA ▪ G.M. Linz, D.L. Bergman and W J. Bleier
INFLUENCE OF FORB ABUNDANCE ON WINTER BIRD USE OF CONSERVATION RESERVE PROGRAM FIELDS ▪ S.D. Hull, R.J. Robel and K.E. Kemp
FIRST NEST DOCUMENTATION FOR WHIP-POOR-WILL IN SOUTH DAKOTA ▪ K. L. Dean, D.L. Swanson, E.T. Liknes and D.P. Weinacht
WOOD DUCK POPULATION EXPANSION IN NORTHERN MONTANA ▪ DM. Prellwitz, J.R. Little, L.R. Rau and C.J. Hoff
PRAIRIE VOLES AT LOW DENSITY IN UNGRAZED TALLGRASS PRAIRIE IN THE FLINT HILLS …
Playing With Fire: Science And Politics Of Air Pollution From Cars, Donald H. Stedman
Playing With Fire: Science And Politics Of Air Pollution From Cars, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
No abstract provided.
A Decision Model For Environmental Assessment Of Process Waste Products, Kyle F. Byard
A Decision Model For Environmental Assessment Of Process Waste Products, Kyle F. Byard
Theses and Dissertations
Environmental managers must compare the potential impacts of waste products when deciding upon courses of action. The estimation and comparison of these impacts is a subjective process, and few methods of comprehensive, quantitative comparison of waste products currently exist. The intent of this study is to develop a decision methodology to evaluate the environmental impacts of waste products and to score them for comparison. The method will follow established system design principles and incorporate significant characteristics of the waste material. Scores derived to represent the environmental impacts of materials will then he analyzed employing statistical and probabilistic methods to assess …
Acquiring Consistent Knowledge For Bayesian Forests, Darwyn O. Banks
Acquiring Consistent Knowledge For Bayesian Forests, Darwyn O. Banks
Theses and Dissertations
This thesis develops a methodology and a tool for knowledge acquisition with the new probabilistic knowledge representation-the Bayesian Forest. It establishes the structure of the Knowledge Acquisition and Maintenance module of the Probabilities. Expert Systems, Knowledge and Inference (PESKI) architecture. The tool, MACK, is designed to be used directly by the domain expert(s) rather than by knowledge engineer(s), and thus supports automated knowledge acquisition. This research determines and implements the constraints necessary to ensure the consistency of Bayesian Forest knowledge bases as data is both acquired and subsequently maintained. The impact to the PESKI architecture of time-dependent information and default …
How To Make Your Alfalfa More Profitable, Clive Holland
How To Make Your Alfalfa More Profitable, Clive Holland
Kentucky Alfalfa and Stored Forage Conference
As a perennial plant, alfalfa can be expected to continue to live and produce for an indefinite period of time. Why then do stands need to be replanted every few years? Is modern seed available today, weakened and unable to live up to the perennial label? What about yield? How does your stand measure up? Are you barely making the state average, or struggling to even meet this modest yield level?
The first harvest each spring can produce over 40% of the yield in a single growing season. Why is a stand slower growing in the spring than you would …
Role Of Alfalfa In Animal Diets, Jennifer L. Garrett
Role Of Alfalfa In Animal Diets, Jennifer L. Garrett
Kentucky Alfalfa and Stored Forage Conference
Alfalfa forage use has increased in all classes of livestock - dairy, beef, horses, sheep, and swine - during the last 40 years. The highest utilization of alfalfa by livestock is found in dairy cattle diets. Additionally, the use of alfalfa as a grazing crop has also undergone a considerable increase with the use of new grazing management techniques and the development of new grazing varieties.
Alfalfa's strength as a forage crop is its high nutritional value. Alfalfa is higher in protein, minerals, and net energy than grasses and small grains. High quality alfalfa also helps to promote intake, especially …
A Search For The Seasonal Variability On The Depositional Fluxes Of 7Be And 210Pb, M. Baskaran
A Search For The Seasonal Variability On The Depositional Fluxes Of 7Be And 210Pb, M. Baskaran
Environmental Science and Geology Faculty Research Publications
Investigations of the atmospheric fallout of 7Be and 210Pb in many places around the globe indicate that there are seasonal variations on the depositional fluxes of these nuclides: high in winter in a few places, while in most places the high occurs in spring. However, these earlier studies did not address quantitatively the corresponding seasonal variations of the amount of precipitation during these periods. Data on the depositional fluxes of 7Be and 210Pb in Galveston, Texas, during the years 1989–1991 indicate that the seasonal variation is not uniform from year to year, and the amount of …
Phase Velocity Limit Of High-Frequency Photon Density Waves, Richard C. Haskell, Lars O. Svaasand, Steen J. Madsen, Fabio E. Rojas, Ti-Chen C. Feng, Bruce J. Tromberg
Phase Velocity Limit Of High-Frequency Photon Density Waves, Richard C. Haskell, Lars O. Svaasand, Steen J. Madsen, Fabio E. Rojas, Ti-Chen C. Feng, Bruce J. Tromberg
All HMC Faculty Publications and Research
In frequency-domain photonmigration (FDPM), two factors make high modulation frequencies desirable. First, with frequencies as high as a few GHz, the phase lag versus frequency plot has sufficient curvature to yield both the scattering and absorption coefficients of the tissue under examination. Second, because of increased attenuation, highfrequency photon density waves probe smaller volumes, an asset in small volume in vivo or in vitro studies. This trend toward higher modulation frequencies has led us to reexamine the derivation of the standard diffusion equation (SDE)from the Boltzman transport equation. We find that a second-order time-derivative term, ordinarily neglected in the derivation, …
1.3, Yolanda Jones
Water Resources Studies Along The Arkansas-Oklahoma Border, Kenneth F. Steele
Water Resources Studies Along The Arkansas-Oklahoma Border, Kenneth F. Steele
Arkansas Water Resources Center Technical Reports
The watershed approach to water resource issues recently has been re-discovered. Scientists and managers recognize the need to consider the entire watershed when delineating and solving today's water resource problems. A simple example is the effect that streams have on the ultimate "health" of a reservoir. Although technically the term watershed should be used only in reference to surface water, the importance of ground water is included in the watershed approach to problems. In recognition that we all "live upstream and downstream," the Arkansas Water Resources Center and the Oklahoma Water Resources Institute sponsored a conference titled "Water Resource Studies …
Passageway Around The Redlands Diversion Dam And Interim Agreement To Provide Water For Endangered Fish, Bureau Of Reclamation, Fish And Wildlife Service, U.S. Department Of The Interior
Passageway Around The Redlands Diversion Dam And Interim Agreement To Provide Water For Endangered Fish, Bureau Of Reclamation, Fish And Wildlife Service, U.S. Department Of The Interior
All U.S. Government Documents (Utah Regional Depository)
This draft environmental assessment (EA) discusses two related actions proposed to assist in the recovery of two Federally-listed endangered fish species. The actions are intended to restore use of historic and designated critical habitat of the Gunnison River by the Colorado squawfish and razorback sucker. The proposed actions are to: construct and operate a fish passageway around the Redlands Diversion Dam; and execute an interim (short-term) memorandum of agreement (water agreement) to supply streamflows needed to operate the passageway and maintain downstream fish habitat and access for fish to the passageway. The EA is prepared jointly by the Bureau of …
State Of Tampa Bay 1994, Tampa Bay Regional Planning Council (Tbrpc), Agency On Bay Management
State Of Tampa Bay 1994, Tampa Bay Regional Planning Council (Tbrpc), Agency On Bay Management
Reports
This is the eighth "State of Tampa Bay" report on the projects, programs and organizations that influence the Bay and its watershed . This status report identifies the condition of Tampa Bay over the past year and describes activities and issues addressed by the Tampa Bay Regional Planning Council's Agency on Bay Management during 1994. It was prepared in accordance with the adopted rules of the Agency , and this year is sponsored, in part, by the Tampa Bay National Estuary Program.
Quantitative Studies Of An Immobilized Cell Oxidative Bioreactor, Timothy Lance Borkowski
Quantitative Studies Of An Immobilized Cell Oxidative Bioreactor, Timothy Lance Borkowski
Theses
The purpose of this work was to determine a suitable method of utilizing dissolved oxygen in reservoir solution data to quantitatively measure the amount of oxygen and substrate consumed for an immobilized cell batch bioreactor in a recirculation configuration. Statistical analysis was performed on multiple phenol injections to determine the mathematical relationship between dissolved oxygen readout and the amount of phenol degraded.
Factors considered in the mathematical analysis include amount of substrate degraded, reaction time, recirculation flow rate, measured dissolved oxygen concentration and oxygen consumption, oxygen conversion per pass through the bioreactor during steady state, and vitality of the microorganisms. …
Off-Line Hand-Printed Chinese Character Recognition Based On Stroke Matching, Sunshine Chang
Off-Line Hand-Printed Chinese Character Recognition Based On Stroke Matching, Sunshine Chang
Theses
The specific purpose of this thesis is the automated recognition of the off-line Chinese hand-printed characters by using a blue ball-point pen. Through mask processing, the main components in a Chinese character such as vertical, horizontal, and slant strokes can be extracted. Then, the connected components with the coordinates of the top, bottom, leftmost, and rightmost ends of each stroke extracted are found. From these coordinates, the length and position of each stroke can be computed.
According to the number, relative length, and relative position of each stroke, both of the coarse and fine rule-based classification can be made, and …
Silicon Optical Fiber Pressure Sensor, Jian Pan
Silicon Optical Fiber Pressure Sensor, Jian Pan
Theses
A novel optical fiber pressure sensor based on a micromachined thin silicon diaphragm is proposed. Detail descriptions of the sensor structure, modulation principle and fabrication process are given.
The device operates on the following principle: Pressure deflects a silicon diaphragm which moves the output end of a light source fiber. The emitted light intensity is picked up and shared by two receiving fibers placed side by side. The variation of the intensity ratio in the receiving fibers caused by the relative motion of the emitting fiber can be easily converted to a linear signal versus the deflection of the silicon …
Removal Of Chlorinated Hydrocarbons From Water By Air Stripping And Solvent Sublation, Alpana Gami
Removal Of Chlorinated Hydrocarbons From Water By Air Stripping And Solvent Sublation, Alpana Gami
Theses
Removal of trichloroethylene, monochlorobenzene and 1,3 dichlorobenzene from water by air stripping and solvent sublation into an organic phase was investigated. The sublation solvents used were paraffin oil and decyl alcohol. The rate of removal from water by solvent sublation and air stripping was highest for trichloroethylene, followed by chlorobenzene and finally 1,3 dichlorobenzene. For the three compounds, solvent sublation had the greatest advantage over air stripping in the reduction of emission of the compounds to the atmosphere. For the three compounds, the removal was enhanced at higher flowrate in both air stripping and solvent sublation. For the removal of …
Abundance Of Gulls And Other Birds At Landfills In Northern Ohio, Jerrold L. Belant, Thomas W. Seamans, Steven W. Gabrey, Richard A. Dolbeer
Abundance Of Gulls And Other Birds At Landfills In Northern Ohio, Jerrold L. Belant, Thomas W. Seamans, Steven W. Gabrey, Richard A. Dolbeer
United States Department of Agriculture Wildlife Services: Staff Publications
We estimated the abundance of birds at three landfills in northern Ohio from May 1991-July 1992 recording 699,350 individuals of 42 species. Gulls (Larus spp.) comprised 94.5% of the birds recorded followed by European starlings (Sturnus vulgaris, 5.0%) and turkey vultures (Cathartes aura, 0.3%). Gulls were primarily of two species, ring-billed (L. delawarensis, 74.49%) and herring (L. argentatus, 25.50%). The mean number of gulls per observation during July-January was at least five times the mean number observed during other months. The combined monthly mean number of gulls at the three landfills peaked in August (>4000 birds), with gulls virtually …
Highly Enantioselective Capillary Electrophoretic Separations With Dilute Solutions Of The Macrocyclic Antibiotic Ristocetin A, Daniel W. Armstrong, Mary P. Gasper, Kimber L. Rundlett
Highly Enantioselective Capillary Electrophoretic Separations With Dilute Solutions Of The Macrocyclic Antibiotic Ristocetin A, Daniel W. Armstrong, Mary P. Gasper, Kimber L. Rundlett
Chemistry Faculty Research & Creative Works
Ristocetin A is one of a series of structurally related amphoteric, glycopeptide, macrocyclic antibiotics. These compounds have several features that make them attractive as chiral selectors. These include spatially oriented functional groups that are known to provide the types of interactions that are conducive to enantio-recognition, a somewhat rigid "pocket" that can provide a site for hydrophobic interactions and polar, flexible arms (i.e., pendent sugar moieties) that can rotate to hydrogen bond and otherwise interact with a variety of chiral analytes. In addition, these compounds are sufficiently soluble in water, aqueous buffers and aqueous-organic solvents that are commonly used in …
Addressing Problems In Evaluating Health-Relevant Programs Through Systematic Planning And Evaluation, Galen E. Cole, Chester L. Pogostin, Bonita J. Westover, Nilka M. Rios
Addressing Problems In Evaluating Health-Relevant Programs Through Systematic Planning And Evaluation, Galen E. Cole, Chester L. Pogostin, Bonita J. Westover, Nilka M. Rios
RISK: Health, Safety & Environment (1990-2002)
The authors argue that inconsistent terminology is often a hindrance in assessing health program implementation, effectiveness and efficiency. Attending closely to this, they propose a model scheme for conducting such evaluations.
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 11, Number 1, January 1995, College Of Engineering And Computer Science, Wright State University
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 11, Number 1, January 1995, College Of Engineering And Computer Science, Wright State University
BITs and PCs Newsletter
A fourteen page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.
Land Use Patterns In Relation To Lake Water Quality In The Long Pond, South Basin Watershed, Problems In Environmental Science Course (Biology 493), Colby College, Colby College
Land Use Patterns In Relation To Lake Water Quality In The Long Pond, South Basin Watershed, Problems In Environmental Science Course (Biology 493), Colby College, Colby College
Colby College Watershed Study: Long Pond, South (2007, 1995)
Long Pond, South Basin receives nutrient inputs from a variety of sources, including roads, construction projects, logging practices, and human waste from subsurface waste disposal systems. If any of these sources are near tributaries or the shoreline, the nutrients can be easily transported into the lake itself. The lake is also used recreationally for boating, fishing and swimming, and is utilized as a source of drinking water for seasonal shoreline residences. The watershed contains the Mt. Vernon and Belgrade transfer stations, and the dump has been capped at each of these stations.
Historically, Long Pond, South Basin has not suffered …
Report To The Washington State Board Of Natural Resources From The Independent Review Committee, Independent Review Committee (Wash.), Washington (State). Board Of Natural Resources, University Of Colorado Boulder. Natural Resources Law Center
Report To The Washington State Board Of Natural Resources From The Independent Review Committee, Independent Review Committee (Wash.), Washington (State). Board Of Natural Resources, University Of Colorado Boulder. Natural Resources Law Center
Books, Reports, and Studies
1 volume (various pagings) : illustrations, maps ; 28 cm
Influence Of Vegetated Wetlands On The Water Quality Of Two Glacial Prairie Lakes, Lois Haertel, Walter G. Duffy, Daniel E. Kokesh
Influence Of Vegetated Wetlands On The Water Quality Of Two Glacial Prairie Lakes, Lois Haertel, Walter G. Duffy, Daniel E. Kokesh
Journal of the Minnesota Academy of Science
We investigated the influence of vegetated wetlands on water quality of two eastern South Dakota glacial prairie lakes. Surface water from a 5,880 ha pastured basin drains into a 90 ha upstream Typha wetland and enters Lake Enemy Swim passing 400 m through Typha-Scirpus littoral wetland. A second 1,290 ha basin characterized by row crops and pasture drains into a 260 ha open water slough entering L. Enemy Swim adjacent to Typha-Scirpus littoral wetland. Water enters Lake Cochrane from two smaller drainage basins. Water from a 180 ha basin consisting of a pasture and wet meadow enters the lake after …
Wetlands/Groundwater Quality In Agricultural Landscapes, D. H. Rickerl, D. E. Kringen, T. A. Machacek
Wetlands/Groundwater Quality In Agricultural Landscapes, D. H. Rickerl, D. E. Kringen, T. A. Machacek
Journal of the Minnesota Academy of Science
In the Prairie Pothole Region (PPR - SO, NO, MN, IA), wetlands classified as "semi-permanent" or "seasonal" can act as groundwater recharge sites. The nutrient filtering capacity of wetlands has been investigated for both natural and constructed wetlands linked to surface water, but there is little information available on their subsequent impact on groundwater quality. This study investigates four seasonal and two semi-permanent wetlands in the PPR of eastern South Dakota. Transitional no-till (TNT) and organic farm (ORG) management systems border the wetlands. The objective is to determine the effects of farm management system on wetland surface water and groundwater …
Perceived Risks Of Emfs And Landowner Compensation, Linda J. Orel
Perceived Risks Of Emfs And Landowner Compensation, Linda J. Orel
RISK: Health, Safety & Environment (1990-2002)
Although public concerns about EMFs may eventually prove groundless, they can nevertheless depress the market value of residential property near powerlines. Ms. Orel argues that the scientific truth, as courts increasingly recognize, should play no role in determining whether or how much landowners should recover.
Getting Through The Door: Threshold Procedural Considerations In Right-To-Die Litigation, Sharon F. Dipaolo
Getting Through The Door: Threshold Procedural Considerations In Right-To-Die Litigation, Sharon F. Dipaolo
RISK: Health, Safety & Environment (1990-2002)
Ms. DiPaolo explains how judges may use mootness, ripeness and standing to avoid getting involved in right-to-die cases. She argues that this may interfere with private decision making and be counterproductive.
A Survey Of Residual Cancer Risks Permitted By Health, Safety And Environmental Policy, March Sadowitz, John D. Graham
A Survey Of Residual Cancer Risks Permitted By Health, Safety And Environmental Policy, March Sadowitz, John D. Graham
RISK: Health, Safety & Environment (1990-2002)
The authors describe permitted U.S. residual cancer risks, focusing on numerical levels specifically and implicitly authorized by statute or regulation. They also discuss potential changes.