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Articles 30691 - 30720 of 32990
Full-Text Articles in Entire DC Network
Groundwater Levels In Nebraska, 1969, C.F. Keech
Groundwater Levels In Nebraska, 1969, C.F. Keech
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Re-Exploring The Missouri, Thompson Mylan Stout
Re-Exploring The Missouri, Thompson Mylan Stout
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Test 1038: Case 970 Power Shift Gasoline, Nebraska Tractor Test Lab
Test 1038: Case 970 Power Shift Gasoline, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Test 1037: Case 970 Power Shift Diesel, Nebraska Tractor Test Lab
Test 1037: Case 970 Power Shift Diesel, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Test 1039: Case 970 Manual Gasoline, Nebraska Tractor Test Lab
Test 1039: Case 970 Manual Gasoline, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Test 1034: Case 970 Manual Diesel, Nebraska Tractor Test Lab
Test 1034: Case 970 Manual Diesel, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Test 1035: Case 1070 Manual Diesel (Also Case 1090 Manual), Nebraska Tractor Test Lab
Test 1035: Case 1070 Manual Diesel (Also Case 1090 Manual), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Test 1036: Case 1070 Power Shift Diesel (Also Case 1090 Power Shift), Nebraska Tractor Test Lab
Test 1036: Case 1070 Power Shift Diesel (Also Case 1090 Power Shift), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Evaluating Economic Efficiency By Relative Price Analysis (Feed, Livestock And Product Sectors), J. Y. Chen, J. B. Hassler
Evaluating Economic Efficiency By Relative Price Analysis (Feed, Livestock And Product Sectors), J. Y. Chen, J. B. Hassler
Nebraska Agricultural Experiment Station: Historical Research Bulletins
The specific objective of this research is to delineate efficient and inefficient economic performance areas and thereby locate the more significant problem aspects for research and program attention. Specific price analyses will be used to evaluate the price interrelationships for functional efficiency in the dimensions of space, form and time. Not only the efficient aspects of production and marketing will be indicated by the analyses but the inefficient aspects of economic performance will be stressed also. This research will provide some foundational information for making decisions, both public and private. Moreover, it will direct the attention of researchers or program …
Water Resources News, Volume 2, No. 4, April 1970
Water Resources News, Volume 2, No. 4, April 1970
Water Current Newsletter
Increased Funds for State Water Resources Institute?
Bureau of Reclamation Seeks Research and Development
Bureau of Reclamation Opens Facilities to the National Scientific Community
International Field Year for the Great Lakes to Get Underway
Federal Water Pollution Control Administration Grant to High School Students
President's Task Force on Rural Development Advocates More Support of Water Programs
Water Pollution Control Bill
Possible Increase in Water Supply for the Western States
General Accounting Office Comments on Federal Water Pollution Control Administration
Student-Run Environmental Research Program Supported by NSF
Committee on Water Resources Long-Range Research Plan
15th Annual Midwest Ground-Water Conference
Research Review …
Guidebook To The Geology Along The Missouri River Bluffs Of Southeastern Nebraska And Adjacent Areas, R. R. Burchett
Guidebook To The Geology Along The Missouri River Bluffs Of Southeastern Nebraska And Adjacent Areas, R. R. Burchett
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Asymptotic Lattice Displacements About Point Defects In Cubic Metals, John W. Flocken, John R. Hardy
Asymptotic Lattice Displacements About Point Defects In Cubic Metals, John W. Flocken, John R. Hardy
John R. Hardy Papers
We have calculated the asymptotic displacements (a) about a single vacancy in Al, Na, K, and Li, (b) about a single interstitial Cu atom in a Cu host lattice, and (c) about a unit single double force along a (100) direction in A1 and Cu. These calculations were made using the asymptotic equations of the method of lattice statics which, in its full form, is based on the Fourier transformation of the direct-space force equations between the detect and the host atoms in a large "supercell" of the lattice. Results were also obtained for each of the defect types in …
Calculations Of The Intensity Of X-Ray Diffuse Scattering Produced By Point Defects In Cubic Metals, John W. Flocken, John R. Hardy
Calculations Of The Intensity Of X-Ray Diffuse Scattering Produced By Point Defects In Cubic Metals, John W. Flocken, John R. Hardy
John R. Hardy Papers
We have calculated isointensity profiles for the diffuse X-ray scattering associated with certain types of defects in Cu, Al, Na, K, Li, and a theoretical model lattice. These profiles were computed for high-symmetry planes very close to reciprocal-lattice points of the (S, 0,0), (S,S,0), and (S,S,S) type. Both cubic and double-force defects were treated. The calculations were done using a technique presented by Kanzaki for the theoretical model lattice. Kanzaki's general conclusion that cubic defects produce leminiscate profiles and that double-force defects produce ellipsoidal profiles is confirmed for all the material studied. Our profiles for the model lattice agree with …
Frontmatter And Contents
Vertebrate Pest Conference Proceedings: 4th (1970)
PROCEEDINGS: FOURTH VERTEBRATE PEST CCONFERENCE held at El Rancho Hotel, West Sacramento, California, March 3, 4 and 5, 1970. Edited By Richard H. Dana, Conference Chairman. Sponsored by the California Vertebrate Pest Committee
Opening Remarks - Fourth Vertebrate Pest Conference, Richard H. Dana
Opening Remarks - Fourth Vertebrate Pest Conference, Richard H. Dana
Vertebrate Pest Conference Proceedings: 4th (1970)
I am pleased to welcome you to the Fourth Vertebrate Pest Conference. This is our second Sacramento meeting. The first was in 1962 - eight years ago. It was an historic occasion. It was the first conference devoted exclusively to vertebrate pests. This conference is sponsored by the California Vertebrate Pest Committee comprised of representatives from the California Department of Agriculture, the University of California at Davis, Department of Animal Physiology and the Agricultural Extension Service; the U. S. Bureau of Sport Fisheries and Wildlife, Division of Wildlife Services and of Wildlife Research, the California Departments of Public Health, Fish …
Keynote Address --- "The Year Of Ecology", Robert I. Cushing
Keynote Address --- "The Year Of Ecology", Robert I. Cushing
Vertebrate Pest Conference Proceedings: 4th (1970)
It seems to me that there are at least two things we should be concerned about. First, I believe there is a real possibility that the environmental quality bandwagon will get to playing so loud and to rolling so fast that there can be some unfavorable consequences in food production and processing-—the job I work at and that some of you work at. Second, I believe there are signs that we could lose our balance—-that we could be making decisions on emotional instead of rational grounds. Reason seems to be in danger from an epidemic of emotion. And we need …
Outlook For Rodenticides And Avicides Registration, James O. Lee
Outlook For Rodenticides And Avicides Registration, James O. Lee
Vertebrate Pest Conference Proceedings: 4th (1970)
The history of pesticide regulations is presented. Major emphasis is on federal regulations. The evaluation of avicides and rodenticides is discussed and related to regu¬lations. Currently registered avicides and rodenticides are described along with a listing of efficacy criteria requirements. The future of registration of avicides and rodenticides is projected.
The Pharmacology Of Rodenticides, S. A. Peoples
The Pharmacology Of Rodenticides, S. A. Peoples
Vertebrate Pest Conference Proceedings: 4th (1970)
The compounds used as rodenticides are tremendously varied in their chemical structure and mechanism of action. With a few exceptions, these agents are generally poisonous to all animals, including man, and a great deal of study has been directed to their toxicity in animals other than rodents. However, the development of new compounds as Norbormide and certain antifertility drugs which are highly selective in their action may justify the hope that the ideal rodenticide free of secondary toxic hazards will soon be available. Until this happy announcement is made, a review of the pharmacology of the older compounds is in …
Notes On The Ecology Of Sewer Rats In St. Louis, Kyle R. Barbehenn
Notes On The Ecology Of Sewer Rats In St. Louis, Kyle R. Barbehenn
Vertebrate Pest Conference Proceedings: 4th (1970)
The awareness, if not the magnitude, of problems caused by sewer rats has increased in the United States in recent years. Thus, current concern with the more general problem of urban rats is leading many city agencies to incorporate plans for controlling sewer rats in budgets that are already severely strained. The most effective programs for controlling pests are those based on an intimate knowledge of the interactions between the target species and its environment. Some basic studies of sewer rat ecology were begun in St. Louis, Missouri, in February, 1969. Since the initial results have provided information that should …
The Role Of The Coyote In An Infection Of Man And Animals, I. K. M. Liu
The Role Of The Coyote In An Infection Of Man And Animals, I. K. M. Liu
Vertebrate Pest Conference Proceedings: 4th (1970)
As part of epidemiological studies on hydatid disease in the central valley of California, a survey was made of seven counties of possible infections with Echinococcus granulosus in the coyote (Canis latrans). Of 173 animals examined, seven 4.O per cent) were found infected, six of them from Tehama County.
Current Status Of Plague And Plague Control In The United States, Jack D. Poland, Allan M. Barnes
Current Status Of Plague And Plague Control In The United States, Jack D. Poland, Allan M. Barnes
Vertebrate Pest Conference Proceedings: 4th (1970)
During the first quarter of the 20th century massive rat-borne plague epidemics occurred in port cities of the United States in conjunction with the last world-wide pandemic which originated in China in 1893. By 1950, plague was found to be firmly established in wild rodent populations in states west of the 100th meridian. Presumably because of improved sanitation coupled with retreat of the world-wide pandemic there have been no human cases in this country associated with urban rats since 1924. However, sporadic cases, fewer than 10 per year, are reported as due to contact with wild rodents, lagomorphs, rural rats, …
The Rat In Hawaiian Sugarcane, Glenn A. Hood, Roger D. Nass, Gerald D. Lindsey
The Rat In Hawaiian Sugarcane, Glenn A. Hood, Roger D. Nass, Gerald D. Lindsey
Vertebrate Pest Conference Proceedings: 4th (1970)
Heavy losses In Hawaiian sugarcane are caused by Polynesian rats (Rattus exulans), Norway rats (R. norveglcus), and black rats (R. rattus). Relative population levels, movement patterns, damage to sugarcane, and suggested timing of control during five stages of the 2-year crop cycle are described. The progress toward the registering of zinc phosphide for use in crops and the development of other rodenticides are mentioned.
Rodent Control In The Hawaiian Sugar Industry, Allen H. Teshima
Rodent Control In The Hawaiian Sugar Industry, Allen H. Teshima
Vertebrate Pest Conference Proceedings: 4th (1970)
Past and present concepts of rodent control at the 24 sugar plantations of Hawaii are reviewed with particular attention being given to the research efforts of the Experiment Station of the Hawaiian Sugar Planters' Association in improving operational rodent control in sugarcane. Hawaii offers a unique set of conditions: a 2-year crop cycle, a production of over 100 tons of sugarcane per acre, countless numbers of gulches and wasteland bordering crop fields, and a year-long growing season, all having an effect on rat population and habitat.
Vampire Bat Control: A Review And Proposed Research Programme For Latin America, Arthur M. Greenhall
Vampire Bat Control: A Review And Proposed Research Programme For Latin America, Arthur M. Greenhall
Vertebrate Pest Conference Proceedings: 4th (1970)
In Latin America paralytic rabies transmitted by vampire bats is a major cause of death in cattle. This problem becomes more acute as countries attempt to increase livestock production to feed rapidly expanding human populations. Vaccination has been the principal weapon against rabies, however this offers no protection to domestic animals and poultry against daily predation of vampire bats. Established methods of vampire bat control, though limited, have proved effective and should be continued while more effective methods are being developed and tested. Existing methods are discussed in some detail. Of the approximately 200 kinds of bats found in Latin …
New Factors Controlling Populations Of Land Vertebrates In Great Britain, N. W. Moore
New Factors Controlling Populations Of Land Vertebrates In Great Britain, N. W. Moore
Vertebrate Pest Conference Proceedings: 4th (1970)
The vertebrate fauna of Britain is impoverished by nature. Further, virtually the whole land surface has been altered radically by Man, and all vertebrate species have been profoundly affected both unconsciously and consciously by Man. The rate of change during the last quarter of a century has been far greater than at any other time; new deleterious factors - increased habitat destruction, increased human pressure and motor traffic, myxomatosis and a vast increase in pesticide use have coincided in this period. The public's attitude to several common species (e.g., rabbit, woodpigeon, fox and birds of prey) has been equivocal and …
Importance Of Wildlife Rabies Control, Richard L. Parker
Importance Of Wildlife Rabies Control, Richard L. Parker
Vertebrate Pest Conference Proceedings: 4th (1970)
ABSTRACT: Rabies in animals has been known in North America for over two centuries, and whether the disease was initially present in wild species or was introduced by dogs, it has been known in skunks for almost a century and a half. Today more rabies cases in wild animals are reported than in domestic animals, and a considerable proportion of both human and domestic animal exposures to the disease are the result of wild-animal contact. The most useful techniques for controlling wild animal rabies today are methods that reduce contact between infected individuals and susceptible individuals; these involve the manipulation …
Chemosterilants As An Approach To Rodent Control, Rex E. Marsh, Walter E. Howard
Chemosterilants As An Approach To Rodent Control, Rex E. Marsh, Walter E. Howard
Vertebrate Pest Conference Proceedings: 4th (1970)
Capitalizing on research directed toward oral contraceptives for humans, a wide variety of compounds are now under study for their practical value in inhibiting rodent reproduction to suppress detrimental populations. This paper discusses the specifications of ideal rodent chemosterilants and the advantages of chemosterilants over other methods of control, and compares the potential values of chemosterilants acting on females, males, and both sexes. Specific situations are detailed where chemosterilants will be most valuable in rodent control, together with proposed methods of application. Chemosterilants are not expected to become a panacea for control, but since they are based on sound biological …
Olfaction In Rodent Control, Walter E. Howard, Rex E. Marsh
Olfaction In Rodent Control, Walter E. Howard, Rex E. Marsh
Vertebrate Pest Conference Proceedings: 4th (1970)
A brief survey is presented of current knowledge on olfaction in rodents and the various roles that odors may play in modifying rodent behavior. Some species at least utilize olfactory cues: to locate food items; to recognize their mother and mates; to mark territory; as an involuntary population density regulator; possibly to recognize predators; as a warning cue against a repellent or toxic substance (poison-bait shyness); and probably, for many other behavioral purposes. The value of using artificial odors in rodent baits to increase bait acceptance is not yet well documented. The addition of attractive natural odors may increase detection …
Mole Control, Lee W. Kuhn
Mole Control, Lee W. Kuhn
Vertebrate Pest Conference Proceedings: 4th (1970)
ABSTRACT: Four kinds of moles are found in the Pacific coast states but only the Townsend mole (Scapanus townsendii) in Washington and Oregon and the broad-handed mole (Scapanus latimanus) in California are considered economically important. Damage in agricultural areas is caused by mole mounds and burrow systems which reduce pasture production, make harvesting difficult by breaking or plugging machinery, contaminate hay and silage thus, retarding proper curing, contribute to soil erosion and make ready-made homes for invading meadow mice, pocket gophers, and other rodent pests. Moles also damage lawns, gardens, flower beds and occasionally eat or destroy valuable seeds and …
Destruction Of Conifer Seed And Methods Of Protection, M. A. Radwan
Destruction Of Conifer Seed And Methods Of Protection, M. A. Radwan
Vertebrate Pest Conference Proceedings: 4th (1970)
ABSTRACT: Agents responsible for tosses of conifer seed and methods for seed protection are reviewed. Published information indicates that much seed is destroyed, especially by seed-eating rodents and birds. Improvement of existing protective methods and development of new chemical means are necessary to overcome the problem.