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Articles 24691 - 24720 of 24937
Full-Text Articles in Entire DC Network
Ultrasonic Shark Tag Monitoring System Technical Report, Thomas Thorson, Gordon Esterberg, James Johnson
Ultrasonic Shark Tag Monitoring System Technical Report, Thomas Thorson, Gordon Esterberg, James Johnson
School of Biological Sciences: Faculty Publications
Table of Contents:
Introduction
Description of System
Ultrasonic Tag
Ultrasonic Tag Monitor
Hyrdophones
Receiver-Recorder Unit
Receiver
Recorder
Batteries
Operation
Figures
Distribution List
Documentation Control Data – R & D (DD Form 1473)
Study To Save Block Island, Designer's News, May 19,1969, Students Of Risd, Risd Archives
Study To Save Block Island, Designer's News, May 19,1969, Students Of Risd, Risd Archives
Ecology and Environment
RISD Landscape Architecture Study to Save Block Island Article from Designer's News, May 19, 1969 student newspaper.
Noise As A Factor In Urban Health, Eric Bauer
Noise As A Factor In Urban Health, Eric Bauer
Journal of the Minnesota Academy of Science
The hazards to general health from excessive noise are recognized, but along with studies of the sources and increase in community noise, measures should be taken to reduce the possible widespread damage to hearing by means which are known and available.
Study Of A Uintah And Ouray Reservation Urea Fertilizer Manufacturingn Plant And Economic Development Potential Of A Charcoal Industry, Economic Development Operations
Study Of A Uintah And Ouray Reservation Urea Fertilizer Manufacturingn Plant And Economic Development Potential Of A Charcoal Industry, Economic Development Operations
Elusive Documents
No abstract provided.
Shed Lambing In The Esperance Environment, T Marshall, F. F. Dixon
Shed Lambing In The Esperance Environment, T Marshall, F. F. Dixon
Journal of the Department of Agriculture, Western Australia, Series 4
Neonatal lamb mortality is often high in Western Australia and losses as high as 33 per cent, have been recorded on private properties in the Esperance area. Surveys by Western Australian Department of Agriculture officers have indicated that more than threequarters of such lamb deaths occur after birth. About half these deaths result from the combined effects of weather and mismothering.
Work in Victoria has indicated that lamb mortality may be reduced by intensive lambing systems such as shedding and this trial was established to see if shedding could reduce lamb mortality in the Esperance environment.
Overgrazing And Wind Erosion, J R H Riches
Overgrazing And Wind Erosion, J R H Riches
Journal of the Department of Agriculture, Western Australia, Series 4
OVER the last few years wind erosion during the autumn in the wheatbelt districts has become increasingly evident.
This has occurred under normal seasonal conditions and observations in this article are not related to unusual conditions such as the extremely low rainfall during the current season.*
Saltland Pastures, C V. Malcolm
Saltland Pastures, C V. Malcolm
Journal of the Department of Agriculture, Western Australia, Series 4
FOLLOWING THE DEVELOPMENT of Agriculture in Western Australia considerable areas of highly productive land have become salt affected to the degree that normal crops and pastures cannot be grown.*
However, species and establishment methods are available which can bring at least some of this land back into production.
Pasture : Corner-Stone Of Soil Conservation, W J. Burdass
Pasture : Corner-Stone Of Soil Conservation, W J. Burdass
Journal of the Department of Agriculture, Western Australia, Series 4
LEGUME PASTURE is the basis of prosperity in farming in the agricultural areas of Western Australia.
The livestock industry could not thrive without it and it also maintains fertility and soil structure for the cereal growing industry.
It is, in fact, the comer-stone on which the soil conservation conscious farmer rests his soil management.
The Effect Of A Large Reservoir On Local Government Revenue And Expenditure, Clyde T. Bates
The Effect Of A Large Reservoir On Local Government Revenue And Expenditure, Clyde T. Bates
KWRRI Research Reports
Development of a large multi-purpose reservoir within the area of their jurisdiction may affect property ta.x revenue and expenditure of county governments and school districts. Privately owned land sold to a federally sponsored reservoir is not subject to property taxes because of the doctrine of intergovernmental immunity. Local officials often assume that this loss of assessment will reduce their tax revenue and thereby their fiscal ability to provide an acceptable level of government services. They may also expect the influx of construction workers or the disruption of existing facilities to increase the cost of providing these services. The study approaches …
The Persistence Of Pesticides In Impounded Waters, Robert A. Lauderdale
The Persistence Of Pesticides In Impounded Waters, Robert A. Lauderdale
KWRRI Research Reports
The purpose of this study was to investigate the persistance of the insecticides aldrin, dieldrin, chlordane, and DDT in water. A small drainage area was sprayed with these compounds, and the insecticides were collected in the runoff water from the area. Laboratory experiments were performed to determine the effectiveness of aeration, adsorption on silt, and adsorption on algae in removing the pesticides from water.
All of the pesticides were found in samples of water collected from the area for the full period of the tests. The amounts which were found in a small pond into which the surface water drained …
State Organizational Patterns For Comprehensive Planning Of Water Resources Development, Daniel H. Hoggan
State Organizational Patterns For Comprehensive Planning Of Water Resources Development, Daniel H. Hoggan
Reports
No abstract provided.
Aeration Of Stockade Lake, South Dakota, Larry C. Vanray
Aeration Of Stockade Lake, South Dakota, Larry C. Vanray
Electronic Theses and Dissertations
Intermittent aeration of Stockade Lake (2,470 acre feet) during the summers of 1967 and 1968 temporarily altered the thermal profile and phytoplankton density. Continual aeration for 48 hours in the deepest portion of this eutrophic lake produced epilmnetic cooling, hypolimnetic warming and apparent reduction of algal populations at three sampling stations in various parts of the lake. Dye, released at the aeration site, was found at all depths throughout the lake after 461/2 hours aeration. Air bubbles, rising from diffuser blocks near the lake bottom, carried cold, hypolimnetic water to the surface at a rate of 4.7 million gallons per …
The Prairie Naturalist Volume 1, No.4. December 1969
The Prairie Naturalist Volume 1, No.4. December 1969
The Prairie Naturalist
EDITORIAL: Restoring Beauty to the Human Environment ▪ Paul B. Kannowski
A REQUIEM FOR THE PRAIRIE ▪ Hugh H. Iltis
BIRDING IN MY BACK YARD ▪ Mrs. George A. Anderson
OCCURRENCE OF THE CECROPIA AND ROCKY MOUNTAIN SILK MOTHS IN SOUTHWESTERN NORTH DAKOTA ▪ James Oberfoell
Effects Of Main Stem Impoundments And Channelization Upon The Limnology Of The Missouri River, Nebraska, Larry A. Morris, Ralph N. Langemeier, Thomas R. Russell, Arthur Witt Jr.
Effects Of Main Stem Impoundments And Channelization Upon The Limnology Of The Missouri River, Nebraska, Larry A. Morris, Ralph N. Langemeier, Thomas R. Russell, Arthur Witt Jr.
Nebraska Game and Parks Commission: Staff Research Publications
Rigid control has been imposed upon the Missouri River by impounding over one-half of the upper 1,500 miles and by channeling most of the remaining river within permanent, narrow banks. These controls have caused environmental changes in the lower Missouri River, as shown by this study, of adjacent unchannelized and channelized sections of river below the main stem impoundments. Impoundments have regulated flow by evening maximum and minimum discharges and improved downstream water quality by decreasing turbidity and indirectly raising the dissolved oxygen. In addition the impoundments have contributed a limnetic cladoceran, Leptodora kindti, to the drift and have …
L.A. General Data, Walter A. Lawrance
Press Reports, Walter Lawrance
Biological Studies Of Selected Reaches And Tributaries Of The Colorado River, Nelson Thomas, Federal Water Pollution Control Administration
Biological Studies Of Selected Reaches And Tributaries Of The Colorado River, Nelson Thomas, Federal Water Pollution Control Administration
Publications (WR)
This report fulfills the request of the Colorado River Basin Project, Denver, Colorado, to determine the effects of municipal and industrial wastes on the aquatic life in selected waters of the Colorado River Basin. These studies were conducted with the assistance of personnel from the Colorado River Basin Project.
Federal Labeling Standards For Economic Poisons, Paul M. Ochs
Federal Labeling Standards For Economic Poisons, Paul M. Ochs
Bird Control Seminars Proceedings
The U.S. Department of Agriculture, Pesticide Regulation Division, has the responsibility of administering the Federal Insecticide, Fungicide and Rodenticide Act of 1947 as amended. The Act encompasses any substance or mixture of substances intended for "preventing, destroying, repelling or mitigating any insects, rodents or any other vertebrate animals, nematodes, fungi, weeds, and any other forms of plants or animal life or viruses," except viruses on or in living man or other animals. These products must be registered if they are to be marketed or shipped in interstate commerce, imported or exported, or sold in the District of Columbia or any …
Activities Of The Faa Inter-Agency Bird Hazard Committee, John L. Seubert
Activities Of The Faa Inter-Agency Bird Hazard Committee, John L. Seubert
Bird Control Seminars Proceedings
The Federal Aviation Administration established an Inter-Agency Bird Hazard Committee in September 1966 in recognition of the increased hazard of birds to aviation. This inter-agency group was formed to obtain and consolidate informa-tion about the bird-aircraft problem and to develop ways of lessening collisions between birds and aircraft. The committee includes representatives from the Fed-eral Aviation Administration, Civil Aeronautics Board, Department of Health, Edu-cation & Welfare, National Aeronautics & Space Administration, U.S. Department of the Interior, U.S. Air Force, U.S. Army, and the U.S. Navy. The activities of the committee have been limited primarily to an advisory role. It is …
Status Of Starlicide, Philip J. Spear
Status Of Starlicide, Philip J. Spear
Bird Control Seminars Proceedings
Starlicide is described as a slow-acting avicide for the control of starlings and blackbirds around livestock and poultry operations. The active ingredient is 3 -chloro-p-toluidine hydrochloride which has been identified by the Denver Re-search Center of the U.S. Fish and Wildlife Service as DRC-1339. A casual review of information about this bird control material suggests the following paradoxes: The use of the chemical in bird control appears to be covered by a patent, but the licensor wishes to remain anonymous. The licensee, which produces and sells the commercial material, seems unwilling to discuss the product. Let me hasten to point …
Significance And Control Of Fungal Diseases Related To Bird Roosts, Robert J. Weeks
Significance And Control Of Fungal Diseases Related To Bird Roosts, Robert J. Weeks
Bird Control Seminars Proceedings
Certain fungi have been found frequently as saprophytes in areas containing large amounts of bird excreta. These fungi have the ability to survive, multiply, and cause disease once they have entered a host. Two of these are Crypto-coccus neoformans and Histoplasma capsulatum. Both may easily become airborne and be disseminated throughout an area by the prevailing winds. C. neo-formans is commonly isolated from the excreta of pigeon habitats, and in turn has been associated with clinical cases of cryptococcosis, while blackbird roosts, harboring H. capsulatum, have been responsible for several outbreaks of histoplasmosis. When either of these fungi have become …
Bird Control Under A State Fish And Game Permit System, James Shepard
Bird Control Under A State Fish And Game Permit System, James Shepard
Bird Control Seminars Proceedings
I guess the impetus for laws in our state, really was the action of the city of Boston in 1963, when the Parks and Recreation Department felt that it was time to do something about massive populations of pigeons on the Boston Commons and in the city. The Parks Department came to our agency to find out what could be done. We immediately found as a result of a reorganization and recodification of the laws some 20 years before, that it was illegal to use or apply poisons for the purpose of killing any birds or mammals in the Commonwealth …
New Materials For Bird Control, John W. Degrazio, Philip J. Spear
New Materials For Bird Control, John W. Degrazio, Philip J. Spear
Bird Control Seminars Proceedings
A variety of methods is necessary to solve the many bird damage problems that occur in agriculture and other fields of interest. It is apparent that no one method can be used to provide answers for all damage situations; each problem and problem area is unique and requires thorough knowledge and investigation before intelligent measures of bird control can be applied. Thus, basic research in the laboratory and initial field studies are necessary to arrive at the most safe, efficient, and economical method of bird damage control possible for each situa-tion. The use of chemicals for damage control is one …
A Conservation Department Approach To Environmental Contamination And Surveillance Problems, Leroy J. Korschgen
A Conservation Department Approach To Environmental Contamination And Surveillance Problems, Leroy J. Korschgen
Bird Control Seminars Proceedings
Historically, the Conservation Commission has allied itself with other state, federal, and private agencies that are concerned with control and management of wildlife. It was suggested about a year ago that a Memorandum of Understanding, specifying the policy and procedure for bird control and rat and mouse control by the Bureau of Sport Fisheries and Wildlife in Missouri, would be desirable. Subsequent discussion with Bureau representatives led to the conclusion that a formal memorandum of understanding was unnecessary. The primary purpose of such documents is to formalize operating procedures in states where the Bureau carries on a continuous control program …
Chemosterilants And Bird Control, M. R. Woulfe
Chemosterilants And Bird Control, M. R. Woulfe
Bird Control Seminars Proceedings
The total scope of chemosterilants is very wide so I will comment only on the pigeon chemosterilant developed by G.D. Searle & Co. and then briefly on the role of chemosterilants, generally, in bird control. Searle's ORNITROL (SC-12937, azacosterol) is a chemosterilant which in-hibits reproduction in the pigeon and is to be used as a means of controlling pigeon populations. It is fed as a treated whole corn bait (0.1%) for a period of ten days and inhibits reproduction for about six months. We recommend treat-ment in the early spring just before the onset of the peak reproduction season to …
Birds, Encephalitis, And Ectoparasites, Margaret A. Parsons
Birds, Encephalitis, And Ectoparasites, Margaret A. Parsons
Bird Control Seminars Proceedings
Encephalitis or "inflammation of the brain" is a general term applied to a disorder which may have many causes. Usually this disorder is caused by a virus but it may also be produced by other types of micro-organisms. Encephalitis may also occur after an initial infection with mumps, measles and other childhood diseases, or following a vaccination, or as a result of a non-infectious process such as poisoning. Since encephalitis affects the brain, which in turn controls all body functions, encephalitis from any cause can show symptoms of general illness throughout the body such as headache, nausea and vomiting, fever, …
The Role Of Fda In Environmental Contamination And Surveillance , Clifford Shane
The Role Of Fda In Environmental Contamination And Surveillance , Clifford Shane
Bird Control Seminars Proceedings
The Food & Drug Administration is concerned about birds in two areas. One is the direct contamination of foods, drugs and cosmetics by birds and the other is the possible contamination of these products by the chemicals used to control birds. Since its conception, the Food & Drug Administration has been concerned about the contamination of foodstuffs by birds. Like all animals, they have both their good and bad points. The one bad point is that they are carriers of certain diseases. In addition, the consumer of today is not ready to accept products which have been contaminated by fecal …
Pest Birds And Modern Architecture, Michael W. Fall, David E. Schneider
Pest Birds And Modern Architecture, Michael W. Fall, David E. Schneider
Bird Control Seminars Proceedings
We are offering some remarks on what the entomologist would call the areas of cultural control. Our interest in this approach developed out of a series of information discussions we've had concerning regional planning pro-grams at Penn State. Our ideas on the applications of this to bird management are not well developed; we'd be happy to hear your suggestions and comments. The ideas of cultural control are not new and are only one of many approaches. But perhaps we are reaching a stage of public concern about bird problems and about environmental contamination which make the climate for long range …
Entanglents And Sticky Repellents, Ken Hayden
Entanglents And Sticky Repellents, Ken Hayden
Bird Control Seminars Proceedings
I would like to bring to your attention a survey conducted by N.P.C.A. a couple of years ago that found that 45% of our Industry was willing to engage in the bird management field. The first thought that came to my mind was: what about the other 55% of our industry that was not willing to do bird management work? Why was this? Perhaps their interests are elsewhere in the Pest Control field; maybe they do not like heights or perhaps the tools of the bird management field are developed by each individual company and, therefore, not available through the …
Registered Participants: Fourth Bird Control Seminar, 1968
Registered Participants: Fourth Bird Control Seminar, 1968
Bird Control Seminars Proceedings
Names & addresses of 82 participants.
Keep your city clean: Eat a Pigeon