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Articles 28471 - 28500 of 30386
Full-Text Articles in Entire DC Network
The Effects Of Plant Virus Purification Procedures On Extracts Of Healthy Plants, Sue Ann Tolin
The Effects Of Plant Virus Purification Procedures On Extracts Of Healthy Plants, Sue Ann Tolin
Open Access Master's Theses (through 2010)
This study was undertaken to devise an easy, accurate method to detect and separate various components in extracts of healthy bean, tobacco, and barley plants by using techniques common to virus purification and to determine the effect of some of the more common denaturing and adsorbing agents on these healthy plant components.Conditions for density-gradient centrifugation were selected to give the best separation of normal components, and these conditions were then used as the basis of an analytical method to evaluate the denaturation procedures.
Protoplasmic components of healthy bean, tobacco, and barley plants were isolated and studied by use of techniques …
Organic Phosphorus Poisoning And Its Therapy, William F. Durham, Wayland J. Hayes Jr.
Organic Phosphorus Poisoning And Its Therapy, William F. Durham, Wayland J. Hayes Jr.
United States Public Health Resources
Contents
Introduction
Nature and Physiologic Function of Cholinesterase
Symptoms of Organic Phosphorus Poisoning
Mechanism of Inhibition of Cholinesterase
Measurement of Cholinesterase Activity and Its Relationship to Symptomatology
Measurement of Metabolites and Their Relationship to Symptomatology
Use and Action of Atropine and Other Nonspecific Antidotes
Development of Specific Antidotes
Chemical and Physiologic Properties of Oximes
Antidotal Efficacy of Oximes in Poisoned Experimental Animals
Application of 2-P AM in Poisoning in Man
Suggestions for Treatment
Prevention of Poisoning
Comment and Summary
Introduction
Organic phosphorus compounds are of considerable interest and importance by virture of their widespread use as insecticides; their effectiveness in …
Nebraska Bird Review (July 1962) 30(3), Whole Issue.
Nebraska Bird Review (July 1962) 30(3), Whole Issue.
Nebraska Bird Review
Table of Content
The Status of Wild Turkeys in Nebraska .......................... 34
Extinct Birds .......................... 35
Four Report of Fall Records, 1961 .......................... 41
General Notes .......................... 49
Meetings and Reports.......................... 50
Hawks and Owl Laws .......................... 51
Cc165 Revised 1962 How To Establish New Pastures, E. C. Conard
Cc165 Revised 1962 How To Establish New Pastures, E. C. Conard
University of Nebraska-Lincoln Extension: Historical Materials
Campaign circular 165 revised 1962: Establishing Pastures in Nebraska, how to grow and what seeds to use, also the methods to plant the seeds. It also talks about how to plant the seeds and the equipment that is necessary.
Toxic Hazards In Aerial Application, Paul W. Smith
Toxic Hazards In Aerial Application, Paul W. Smith
United States Department of Commerce: Staff Publications
An analysis of the hazards accompanying the aerial application of toxic pest-control chemicals is presented. The nature of the chemicals, the symptoms of toxicity, recommended treatment, and suggestions for safe-handling, are discussed.
The introduction of the chlorinated, cyclic hydrocarbons for large-scale use as agricultural insecticides somewhat less than two decades ago, marked the beginning of a new era in agricultural pest control. In the intervening years, new chemicals, many of them engineered for specific agricultural purposes, have appeared in rapid succession. The large number and wide variety of these compounds, and their new and unfamiliar chemical and toxicological properties, have …
The Bumblebees Of Nebraska, Wallace E. Laberge, Morgan C. Webb
The Bumblebees Of Nebraska, Wallace E. Laberge, Morgan C. Webb
Nebraska Agricultural Experiment Station: Historical Research Bulletins
The purpose of this paper is to provide a ready means of identifying bumblebees found in Nebraska. It is for both amateur and professional entomologists. Included are an annotated list of the bumblebees found in Nebraska, artificial keys for species determination, a glossary for those not acquainted with the terminology used in the keys, a list of flower preferences and biological notes pertaining to bumblebees in Nebraska. The keys for identification include a few species of bumblebees which have not yet been collected in Nebraska but which may occur in the state.
Negro College Students' Participation In Sit-Ins, Ruth Searles, J. Allen Williams Jr.
Negro College Students' Participation In Sit-Ins, Ruth Searles, J. Allen Williams Jr.
Department of Sociology: Faculty Publications
Socioeconomic and legal changes in the position of southern Negroes have been accompanied by a changing pattern of race relations and a new attitude on the part of Negro leaders. Data from a closed-answer questionnaire administered to students in three Negro colleges in North Carolina support the hypothesis that sit-in protests are less indicative of social alienation among Negroes than of their identification with or positive reference to the white middle class.
Using A Density Gradient Column To Determine Wheat Density, Wendell R. Peters, Robert Katz
Using A Density Gradient Column To Determine Wheat Density, Wendell R. Peters, Robert Katz
Robert Katz Publications
A wheat kernel placed in a density gradient column will sink until it reaches the level where its average density is equal to that of the liquid at that level. Knowing the density of the liquid as a function of height, one can measure accurately the density of the kernel to three decimal places in about 1 to 2 minutes per kernel. Kernel density ranged from a maximum of 1.416 at 7.5% moisture to a minimum of 1.255 g./cm.3 at 18.5% moisture, for the samples tested. Kernels of a homogeneously selected sample of hard spring wheat (Lee) varied in …
Pigeons, Starlings And English Sparrows, G. L. Hockenyos
Pigeons, Starlings And English Sparrows, G. L. Hockenyos
Vertebrate Pest Conference Proceedings: 1st (1962)
This paper deals with the control of excessive numbers of pigeons, starlings and English sparrows in urban situations in the Midwestern region of the United States. Control procedures should always be based on a survey of the factors involved in the problem so that the most feasible methods can be determined. There is no one tool of bird control that fits all situations, and in most cases more than one tool is indicated. Since the feral pigeon is the most common pest species, emphasis will be placed on pigeon control methods. Urban bird control, like urban rat control, may involve …
Federal Law And Vertebrate Pest Control, Justus C. Ward
Federal Law And Vertebrate Pest Control, Justus C. Ward
Vertebrate Pest Conference Proceedings: 1st (1962)
Shortly after the passage of the Federal Insecticide Act of 1910, mammal control specialists in the Bureau of Biological Survey began to consider a similar law to cover the chemicals with which they were concerned. Work on the project went slowly and spasmodically, but reached the point of having a Federal Rodenticide Act available for study and possible revision in 1928. At this time, the mammal control chemicals in use were limited to strychnine--alkaloid and sulphate-arsenic, barium carbonate, thallium sulphate, phosphorus, sodium and calcium cyanide, carbon disulphide, and red squill. Strychnine alkaloid was about the only predatory animal control agent, …
Vertebrate Pest Control, Walter E. Howard
Vertebrate Pest Control, Walter E. Howard
Vertebrate Pest Conference Proceedings: 1st (1962)
It is a pleasure and privilege for me to welcome all of you to this conference. And it is a conference, not a convention. No motions or resolutions will be entertained, as this conference is made up of representatives of many governmental agencies and countries; hence, not a place for resolutions. We are here to get acquainted with each other and to listen to experts from North America and Korea tell us about the best methods of controlling troublesome and pestiferous birds, mammals and snakes, and to discuss related problems concerning diseases and pesticides. Since the program is crowded, each …
Wolf Control In British Columbia, Canada, G. A. West
Wolf Control In British Columbia, Canada, G. A. West
Vertebrate Pest Conference Proceedings: 1st (1962)
Up to 1949, the Fish and Game Branch employed personnel, some of whom were temporary, to attempt control of the extremely high wolf pop¬ulations of the central and northern portions of British Columbia. Coyotes were also very numerous in the central and southern regions and had to be considered because of their depredations. The field men were keen and conscientious but their efforts were not co-ordinated. Control areas were severely restricted in size as techniques were not adaptable enough and because of a lack of manpower. Eventually, sheepmen went out of business entirely over wide areas, cattlemen were subjected to …
Methods Of Controlling Starlings And Blackbirds, Adolph Zajanc
Methods Of Controlling Starlings And Blackbirds, Adolph Zajanc
Vertebrate Pest Conference Proceedings: 1st (1962)
Most people have accepted the fact that all living things can be beneficial to mankind in some way or other. This is especially true of our wild birds, since they provide enjoyment and wholesome recreation for most of us, regardless of whether we live on farms or in the city. But despite the fact that wild birds are for the most part beneficial, at times individuals or populations of certain species can seriously affect man's interests. When such situations occur, some measures of relief are desirable and usually eagerly sought. This report is not intended to answer all the questions …
Ec62-722 High Moisture Grain --Storage And Nutrition--, E. A. Olson, Paul Q. Guyer
Ec62-722 High Moisture Grain --Storage And Nutrition--, E. A. Olson, Paul Q. Guyer
University of Nebraska-Lincoln Extension: Historical Materials
Extension Circular 62-722: High Moisture Grain, storages and nutrition, how airtight silos work, how venting systems for airtight storages work, unloading systems for airtight storage, unloading systems for airtight storage, conventional silos, high moisture storage.
Cc124 Revised 1962 Use Top Quality Lime On Your Farm., W. E. Ringler
Cc124 Revised 1962 Use Top Quality Lime On Your Farm., W. E. Ringler
University of Nebraska-Lincoln Extension: Historical Materials
Extension Circular CC124 Revised 1962 This circular is about how to use top quality lime on your farm. It includes information on purity, fineness, moisture, testing, rats of application, recommendations, and materials needed.
Ec62-1164 Those Versatile Small Electrical Appliances, Clara Leopold
Ec62-1164 Those Versatile Small Electrical Appliances, Clara Leopold
University of Nebraska-Lincoln Extension: Historical Materials
EC 62-1164: This circular is about small electric appliances and their uses. It discussed the uses and versatility of multiple appliances, talks about small electrics, gives hints for safety, shows general care instructions, and gives sketches of each appliance.
Annual Report: 1962
Cherry County (Nebraska) Extension: Historical Documents
Planning & Management of the Farm Business
Volunteer Labor Representative ............................ 1
Tax Analysis Workshop ............................ 1
Field Crops
Phosphate Increases Quality & Quantity ............................ 1
Basic Range Management Important to Future Ranchers ............................ 2
Meadow Grazing a New Concept ............................ 2
Forestry
Livestock Windbreaks a Valuable Asset ............................ 3
Entomology
White Grubs Remain a Problem in Meadows ............................ 4
Dairying
Dairying Gains in Importance ............................ 4
Livestock
A. I. Holds Some Interest ............................ 5
Cody 4-H'er Exhibits Champion Steer ............................ 5
4-H Livestock Judgers Active ............................ 6
Cattle Tours Popular ............................ 7
Fitting & Showing Demonstration Conducted ............................ 7 …
Proceedings Of The Nebraska State Bar Association House Of Delegates Meeting, 1962, Ralph E. Svoboda
Proceedings Of The Nebraska State Bar Association House Of Delegates Meeting, 1962, Ralph E. Svoboda
Nebraska Law Review
No abstract provided.
Clothes For Special Occasions : Extension Circular 4-21-62, Gerda Petersen
Clothes For Special Occasions : Extension Circular 4-21-62, Gerda Petersen
Nebraska 4-H Clubs: Historical Materials and Publications
PROJECT REQUIREMENTS
1. Make a dress or outfit for a special occasion.
2 . Make an extra garment. It may be a special slip, an
accessory for your dress or some other garment that you want or
need.
3 . Maintain good grooming habits .
4 . Be responsible for the care of your own clothes .
5 . Complete your record book.
Be at your most attractive when you dress for a special occasion.
Plan carefully, select pattern and fabric wisely and compliment
your outfit with attractive accessories .
4-H projects
School Clothes : Extension Circular 4-19-2, Gerda Petersen
School Clothes : Extension Circular 4-19-2, Gerda Petersen
Nebraska 4-H Clubs: Historical Materials and Publications
Discusses the details for creating, sleep clothes, play clothes, school clothes and others for 4-H.
Ec62-817b Nebraska Taxes : Ii Public Services : Cost And Financing, Everett Peterson, Jack Timmons
Ec62-817b Nebraska Taxes : Ii Public Services : Cost And Financing, Everett Peterson, Jack Timmons
University of Nebraska-Lincoln Extension: Historical Materials
Extension Circular 62-817B: Nebraska Taxes, public services: cost and funding, services and costs, local government, interstate comparisons, functional comparisons, sources of public funds, financing local government services and interstate comparisons of local government revenue 1956-1957.
Public Health Service Drinking Water Standards
Public Health Service Drinking Water Standards
United States Public Health Resources
The Standards published herein have been promulgated as Public Health Regulations in the Federal Register. As such they became effective April 5, 1962, as the Standards to which drinking water and water supply systems used by carriers and others subject to Federal quarantine regulations must conform. The Division of Environmental Engineering and Food Protection is responsible for the application of these Standards to all carrier water supplies. These Standards supersede the Public Health Service Drinking Water Standards- 1946, as amended in 1956. The new Standards were developed with the assistance of an Advisory Committee appointed by the Public Health Service …
Purification And Sanitary Control Of Water (Potable And Waste), Paul W. Kabler
Purification And Sanitary Control Of Water (Potable And Waste), Paul W. Kabler
United States Public Health Resources
Although most of the streams draining inhabited regions are contaminated with human or animal feces, water-borne disease today in the United States is relatively uncommon. Pathogenic enteric microorganisms probably do not multiply in raw water sources under normal conditions. They usually disappear in a relatively short time, with the rates depending on variations in environmental conditions. Urban water supplies have played a diminishing role in the transmission of intestinal disease because of improvements in the detection and enumeration of pollution indicators, water and sewage treatment processes, and t h e sanitary control of water systems.
Malic Dehydrogenase Activity At 101 C Under Hydrostatic Pressure, Richard Y. Morita, Roger D. Haight
Malic Dehydrogenase Activity At 101 C Under Hydrostatic Pressure, Richard Y. Morita, Roger D. Haight
Papers in Microbiology
MORITA, RICHARD Y. (University of Nebraska, Lincoln) AND ROGER D. HAIGHT. Malic dehydrogenase activitv at 101 C under hydrostatic pressure. J. Bacteriol. 83:1341-1346. 1962.-No malic dehydrogenase activity was found to occur at 101 C at various hydrostatic pressures from 1 to 700 atm. However, activity was demonstrated with hydrostatic pressures above 700 atm, with optimal activity at 1,300 atm at the same temperature. Explanation of the data is based upon thermal denaturation of the enzyme, which involves a molecular volume increase of the enzyme. The molecular volume increase is counteracted by hydrostatic pressure. Pressures above 700 atm to 1,500 atm …
Interaction Between The Parameters Of Hydrostatic Pressure And Temperature On Aspartase Of Escherichia Coli, Roger D. Haight, Richard Y. Morita
Interaction Between The Parameters Of Hydrostatic Pressure And Temperature On Aspartase Of Escherichia Coli, Roger D. Haight, Richard Y. Morita
Papers in Microbiology
HAIGHT, ROGER D. (University of Nebraska, Lincoln) AND RICHARD Y. MORITA. Interaction between the parameters of hydrostatic pressure and temperature on aspartase of Escherichia coli. J. Bacteriol. 83:112-120. 1962.-The data obtained from studies of an aspartase preparation and aspartase in cells of Escherichia coli indicate that there is an interaction between the parameters of hydrostatic pressure and temperature. Pressure was found to decrease aspartase activity at 45 C and lower in vitro and below 53 C in vivo, thereby indicating that when the enzymesubstrate complex is formed there is an increase in molecular volume which is counteracted by pressure. Above …
Speed Calculations And The Expert Witness, David I. Cook
Speed Calculations And The Expert Witness, David I. Cook
Nebraska Law Review
There has been a recent increase in the use of expert witness testimony relating to speeds of vehicles involved in collisions. This has resulted in a need for jurists and lawyers to become increasingly informed of the fundamental physical laws which form the basis of this testimony. The purpose in writing this paper is to discuss in a legal context the most commonly used physical laws in order to clarify an area which has become clouded by the use of incomplete data and erroneous hypotheses. After a consideration of the Nebraska position, the physical laws used in establishing speed on …
Evaluation Of Sires Available Through Planned Mating, L. Dale Van Vleck, C. R. Henderson, H. W. Carter
Evaluation Of Sires Available Through Planned Mating, L. Dale Van Vleck, C. R. Henderson, H. W. Carter
Department of Animal Science: Faculty Publications
There is some concern that methods of sire evaluation which utilize contemporary stablemate averages can be biased by differential genetic merit of the mates of these sires. A little reflection, however, indicates that even if the cows to which some sires are mated are more highly selected than the mates of other sires, this differential merit will not affect seriously the ranking of sires according to the evaluation of their progeny. Until the present, data have not been readily available with which to study the seriousness of this problem. The present study does not deal with the question generally, but …
Sire Evaluation From Five-Month Daughter Records, L. Dale Van Vleck
Sire Evaluation From Five-Month Daughter Records, L. Dale Van Vleck
Department of Animal Science: Faculty Publications
The chief advantages of sire evaluation based on five-month daughter records are: 1. Genetic progress is inversely proportional to the turnover rate in testing bulls so that if this interval is shortened by 10%, the rate of genetic progress will be increased by 11%. The turnover period can be shortened with the use of 5-month records from about 50 months to 45 months—a decrease of 10% in time. 2. Genetic progress is also related to how many top bulls are saved and how many poor ones are culled out of all those sampled. In other words, the more bulls tested …
Ec62-818 Estimating The Value Of Corn Or Grain Sorghum Silage, Dean Brown
Ec62-818 Estimating The Value Of Corn Or Grain Sorghum Silage, Dean Brown
University of Nebraska-Lincoln Extension: Historical Materials
Extension Circular 62-818 is estimating the value of corn or grain sorghum silage.
Ec62-817d Nebraska Taxes : Iv An Evaluation Of The Major Taxes, Everett Peterson, Jack Timmons
Ec62-817d Nebraska Taxes : Iv An Evaluation Of The Major Taxes, Everett Peterson, Jack Timmons
University of Nebraska-Lincoln Extension: Historical Materials
Extension Circular 62-817D is the fourth part of Nebraska taxes and focuses on an evaluation of the major taxes