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Articles 28831 - 28860 of 35617
Full-Text Articles in Entire DC Network
Studies On Perennial Weed Control In South Dakota, Steven Robert Gylling
Studies On Perennial Weed Control In South Dakota, Steven Robert Gylling
Electronic Theses and Dissertations
Studies were conducted to measure efficacy and economics of selected herbicide treatments for leafy spurge control in pasture, and to characterize the interaction of ammonium sulfate and glyphosate for quackgrass control. Several treatments resulted in leafy spurge control exceeding 90% in the tested pasture. Mean herbage dry-weight yield in treated plots was 2340 kg/ha, a 67% increase over untreated plots. Forage yields did not significantly differ among treatments controlling 90% or more leafy spurge. Marginal net return over marginal cost from herbicide treatments ranged from $35 to loss of $63/ha. Treatments providing satisfactory leafy spurge control with minimum economic risk …
Response Of Five Spring Wheat Cultivars To Drought, Gregory Keith Hess
Response Of Five Spring Wheat Cultivars To Drought, Gregory Keith Hess
Electronic Theses and Dissertations
Response of plants to water stress are numerous and interrelated. Morphological traits and growth patterns have been studied and reviewed extensively. Root growth patterns, leaf area and thickness, presence of cuticle hair and waxes, leaf movement, and wilting are only a few traits studied. Metabolic functions and how water stress affects these processes through stomatal behavior, transpiration rates and carbon dioxide exchange rates have also been reviewed. Plant breeders are continually searching for traits which aid in selecting for high yielding genotypes in any one environment. Moisture is often limiting in South Dakota's environment, leading to relatively low grain yields …
The Social Role Of The Church : Alienation Or Mediation?, John O. Umoh
The Social Role Of The Church : Alienation Or Mediation?, John O. Umoh
Electronic Theses and Dissertations
This research has a three-fold purpose: first, to assess the presence, or lack thereof, of alienation in a sample from the rural Farm population; second, to assess the role of the church in helping reduce feelings of alienation; and third, to determine the extent to which church membership and participation enhances personal empowerment and transformative action. The following questions are addressed in the study: 1. Is there evidence of alienation in this rural farm population? 2. If so, who are alienated? 3. Is alienation associated with church membership? 4. Is church membership associated with transformative action? 5. How are alienation …
Efficiency Of Two Black-Tailed Prairie Dog Rodenticides And Their Impacts On Non-Target Bird Species, Anthony Dean Apa
Efficiency Of Two Black-Tailed Prairie Dog Rodenticides And Their Impacts On Non-Target Bird Species, Anthony Dean Apa
Electronic Theses and Dissertations
In 1983 zinc phosphide, strychnine with prebait, and strychnine without prebait were applied to black-tailed prairie dog (Cynomys ludovicianus) colonies in west-central South Dakota. Short-term (4 days later) and long-term (1 year later) poison efficiency and impact (short-term and long-term) on horned larks (Eromophila alpestrus) and other seed-eating birds of the prairie dog colonies were evaluated. Prairie dog burrow densities ranged from 54-187 burrows/ha with an average burrow density of 114 ±8 (± SE) burrows/ha. Rodenticide short-term control reduced active burrows by 95% with zinc phosphide, 42% with only strychnine, and 78% with prebaited strychnine. More zinc phosphide was consumed …
Colchicine Induction Of Tetraploid Plants From Cultured Bulbscale Discs Of The Easter Lily Lilium Longiflorum Thumb, Omar M. Kafawin
Colchicine Induction Of Tetraploid Plants From Cultured Bulbscale Discs Of The Easter Lily Lilium Longiflorum Thumb, Omar M. Kafawin
Electronic Theses and Dissertations
The demands for genetic improvement of plants are rising and the methods to propagate superior plants are improving through tissue culture. Lilium species are commercially propagated by scaling. The base of each bulbscale initiates a few bulblets. Recently, slices of bulbscales were successfully cultured in vitro and numerous bulblets were directly initiated from the explants, producing an abundance of plantlets. This practice of in vitro vegetative propagation of Lilium species not only increases efficiency of multiplying plantlets but also facilitates induction of polyploidy. Polyploids are frequently demanded for genetic studies and also for their desirable characteristics. Except for the tiger …
Seasonal Effect Of Large-Scale Gravel Excavation On Ground Water Quality, James R. Rasmussen
Seasonal Effect Of Large-Scale Gravel Excavation On Ground Water Quality, James R. Rasmussen
Electronic Theses and Dissertations
One of the highest priority uses of water is, of course, its ingestion to sustain life. It is expected that through conventional water treatment an abundance of drinking water will be produced free from pathogenic organisms, free from scale-forming substances, free from toxic chemicals, free from corrosion and corrosion products and free from aesthetically offensive substances. If these freedoms of water quality can be met at a fraction of the expense of conventional water treatment by using the natural environment, serious attention should be focused accordingly. In eastern South Dakota, particularly the Brookings area of the Big Sioux River Basin, …
Electric Choremaster I : Test Procedures And Results, Bryan P. Thoreson
Electric Choremaster I : Test Procedures And Results, Bryan P. Thoreson
Electronic Theses and Dissertations
Development of test procedures and the accumulation of test data are essential for the proper design of agricultural electric vehicles (EVs). Electric Choremaster I is a research prototype that applies the advantages of EV technology to farm chore tasks. Design and construction of this tractor were completed in June 1984. Life-cycle economic savings plus demonstrated EV advantages of low noise, absence of noxious fumes and ease of starting were expected to favor EVs for farm chore tasks. Many battery-powered vehicles were in use at the beginning of this century. However, due to their limited range, they were replaced by internal-combustion …
Distribution, Temperature Selection, And Gonadal Development Of Fishes In A Power Plant Cooling Reservoir, Henry R. Maddux
Distribution, Temperature Selection, And Gonadal Development Of Fishes In A Power Plant Cooling Reservoir, Henry R. Maddux
Electronic Theses and Dissertations
The distribution, temperature selection, and gonadal development of fishes in the Big Stone Power Plant cooling reservoir were examined from July 1982 through July 1983. A total of 46.8% of the fishes captured during this study were from the discharge area, while 31.8% and 21.4% of the fish occurred in the mixing and intake areas, respectively. The mean water temperature occupied by common carp (Cyprinus carpio) ranged from 7.5 C in February to 31.2 C in August. Black bullheads (Ictalurus melas) were generally benthic and captured in the cooler water. The mean water temperature occupied by black bullheads ranged from …
Effects Of Partial Homogenization Of Milk On Yield And Quality Of Cheddar Cheese, Anand Rao
Effects Of Partial Homogenization Of Milk On Yield And Quality Of Cheddar Cheese, Anand Rao
Electronic Theses and Dissertations
In the past decade, the cheese industry in the United States (US) has grown rapidly, with cheese sales increasing by 33% (36). The cheese industry, in 1983, utilized 29.2% of total US milkfat supply as compared to 20.3% utilization in 1973 (36). Compared to the total cheese production of 2,059,2Z8 kg (4,539,822 lb) in 1982, 2,185,611 kg (4,818,449 lb) of cheese were manufactured in 1983 in the .US (36). The increased production of cheese was made possible by modifications in the cheese making process and advent of modern equipment; and it was fostered by increased demand .and higher prices. One …
A Comparative Study Of Methods To Measure Consumer Preference For Hospital Attributes / Lewis Gayle Sewell, Lewis Gayle Sewell
A Comparative Study Of Methods To Measure Consumer Preference For Hospital Attributes / Lewis Gayle Sewell, Lewis Gayle Sewell
Electronic Theses and Dissertations
No abstract provided.
Tender Is The Night : A Critical Study, Beth Ann Maxfield
Tender Is The Night : A Critical Study, Beth Ann Maxfield
Electronic Theses and Dissertations
No abstract provided.
Evaluation Of Yield And Quality Of Cheddar Cheese Manufactured From Milk With Added Whey Protein Concentrate, Kirk Alan Baldwin
Evaluation Of Yield And Quality Of Cheddar Cheese Manufactured From Milk With Added Whey Protein Concentrate, Kirk Alan Baldwin
Electronic Theses and Dissertations
Large quantities of whey are produced as a by-product from the manufacture of cheese or casein. The United States has an annual cheese production of about 2.2 billion kg. The cheese industry has also experienced a steady increase in cheese production of about 6% a year (44). In the process, nearly 18.1 billion kg of whey are produced. Whey was once a discarded product of little value to the cheese producers. With the advent of laws and regulations governing the disposal of whey, whey became a problem that had few solutions. Even today, with the high cost of disposal and …
Identification Of Volatile Compounds Produced By Brevibacterium Linens That Inhibit Molds, Samuel E. Beattie
Identification Of Volatile Compounds Produced By Brevibacterium Linens That Inhibit Molds, Samuel E. Beattie
Electronic Theses and Dissertations
Mold contamination of processed food and its raw ingredients is a major concern in agriculture. Although at one time mold contamination of cheese and other foods was considered to be of little conse9uence, discovery of carcinogenic and/or teratogenic toxins (73) produced by molds commonly associated with food has changed this innocuous and frequent inconvenience into a serious health consideration. The presence of mold on or in cheese is a common occurrence, indeed, many cheeses depend upon molds to provide characteristic cheese flavor and texture. Cheeses such as blue, Roquefort, Camembert, and Brie are ripened under controlled conditions by species of …
Professional Role Attitudes And Decision-Making In Medication Administration, Susan E. Bassett
Professional Role Attitudes And Decision-Making In Medication Administration, Susan E. Bassett
Electronic Theses and Dissertations
This is a case study of nurses' attitudes toward professional nurse role factors affecting decision-making in medication administration. This chapter includes an introduction to the problem, a statement of the problem, objectives of the study, the significance of the problem, definitions of terms pertinent to this study, variables and their operational definitions, and a summary statement.
The objectives of this study are to examine five selected role attitudes of nurses that may affect the specific decisions involved in floor stock system medication administration procedures. These selected role attitudes are frequency, complexity, importance, discretion, and search intensity. The theoretical and methodological …
The Effects Of Selected Aspects Of A Directed Studies Experience On Nursing Performance, Trudy M. Crawford
The Effects Of Selected Aspects Of A Directed Studies Experience On Nursing Performance, Trudy M. Crawford
Electronic Theses and Dissertations
Pretest and posttest questionnaires were designed and administered to a nonrandom sample of 29 senior nursing students, enrolled in a directed studies experience at a selected institution. The questionnaires gathered data which, through testing with the Analysis of Variance, attempted to predict the effects of selected aspects of a directed studies experience on nursing students' perceived ability to complete nursing behaviors. The independent variables were selected aspects of the directed studies experience including participation in nursing activities, satisfaction with amount of participation in nursing activities, understanding of professional role, and satisfaction with the directed studies experience as_ a whole. The …
Trapped, Tarnished Heroines : A Study Of Women In Selected Plays Of Eugene O'Neill And Tennessee Williams, Peggy Hussey Webb
Trapped, Tarnished Heroines : A Study Of Women In Selected Plays Of Eugene O'Neill And Tennessee Williams, Peggy Hussey Webb
Electronic Theses and Dissertations
No abstract provided.
Guided-Mode Launching In Slab Waveguide By Way Of Diffraction Atthe Edge Of A Conducting Screen Residing On One Surface Of Theslab, Timothy Hall Farris
Guided-Mode Launching In Slab Waveguide By Way Of Diffraction Atthe Edge Of A Conducting Screen Residing On One Surface Of Theslab, Timothy Hall Farris
Electronic Theses and Dissertations
No abstract provided.
Effect Of Autotrophic Substrates On Autotrophic Enzymes And Cellenergetics Of Clostridium Thermoaceticum, Rebecca Kellum
Effect Of Autotrophic Substrates On Autotrophic Enzymes And Cellenergetics Of Clostridium Thermoaceticum, Rebecca Kellum
Electronic Theses and Dissertations
No abstract provided.
Stratigraphic Distribution And Biometric Relations Of Two Uppercretaceous Exogyra Species In Northeast Mississippi And Southwest Tennessee, John Edward Johnston
Stratigraphic Distribution And Biometric Relations Of Two Uppercretaceous Exogyra Species In Northeast Mississippi And Southwest Tennessee, John Edward Johnston
Electronic Theses and Dissertations
No abstract provided.
Portrait Drawing : A Comparison Of The Effectiveness Of Teaching The Split-Brain Theory Approach And A Traditional Theory Approach And A Traditional Approach, David Andrew Midkiff
Portrait Drawing : A Comparison Of The Effectiveness Of Teaching The Split-Brain Theory Approach And A Traditional Theory Approach And A Traditional Approach, David Andrew Midkiff
Electronic Theses and Dissertations
No abstract provided.
Deathtrap : A Production Study, Alfred Glen Gourley
Deathtrap : A Production Study, Alfred Glen Gourley
Electronic Theses and Dissertations
No abstract provided.
Nucleate Pool Boiling Of Freon-113 At Atmospheric Pressure Froman Enhanced Surface, Thomas Peyton Easterly
Nucleate Pool Boiling Of Freon-113 At Atmospheric Pressure Froman Enhanced Surface, Thomas Peyton Easterly
Electronic Theses and Dissertations
No abstract provided.
A Study Of Water Infiltration In Unsaturated Soils, Cheng Seng Ng
A Study Of Water Infiltration In Unsaturated Soils, Cheng Seng Ng
Electronic Theses and Dissertations
No abstract provided.
Fallen Tree, Marian Smith Mclellan
Fallen Tree, Marian Smith Mclellan
Electronic Theses and Dissertations
No abstract provided.
The Future Of The Nationally Syndicated Sunday Newspaper Supplement As Illustrated By Parade & Family Weekly, Polly G. Pickett
The Future Of The Nationally Syndicated Sunday Newspaper Supplement As Illustrated By Parade & Family Weekly, Polly G. Pickett
Electronic Theses and Dissertations
No abstract provided.
The Unpublished Short Fiction Of Mary N. Murfree : (With A Biographical Sketch Of Her By Fanny N. D. Murfree) : An Edition And Introduction, Chip Dodd
Electronic Theses and Dissertations
No abstract provided.
Synthesis And Immunological Evaluation Of Peptidomimetics, Zainab A. Al-Shakarchi
Synthesis And Immunological Evaluation Of Peptidomimetics, Zainab A. Al-Shakarchi
Electronic Theses and Dissertations
No abstract provided.
A Comparative Study Of Students Utilizing Computer Assisted Instruction And Students Not Utilizing Computer Assisted Instruction, Constance German
A Comparative Study Of Students Utilizing Computer Assisted Instruction And Students Not Utilizing Computer Assisted Instruction, Constance German
Electronic Theses and Dissertations
No abstract provided.
An Experimental Study Of The Rise Time Of Shock Waves Propagating In The Atmosphere, Bruce Allen Layton
An Experimental Study Of The Rise Time Of Shock Waves Propagating In The Atmosphere, Bruce Allen Layton
Electronic Theses and Dissertations
No abstract provided.
Aid Of Microcomputers In The Design Of Prestressed Concrete Highway Bridge Support Girders, Michelle Marie Crull
Aid Of Microcomputers In The Design Of Prestressed Concrete Highway Bridge Support Girders, Michelle Marie Crull
Electronic Theses and Dissertations
No abstract provided.