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Articles 8371 - 8400 of 9775
Full-Text Articles in Entire DC Network
An Analysis Of Trends In Resource Utilization By Primary Care Physicians For Selected Drgs Under The Prospective Payment System, Robert E. Northern
An Analysis Of Trends In Resource Utilization By Primary Care Physicians For Selected Drgs Under The Prospective Payment System, Robert E. Northern
Electronic Theses and Dissertations
No abstract provided.
An Automated Diagnostic Test And Tutorial Package For Basic Skills Of Mathematics In Post Secondary Vocational Education Of Kentucky: Construction And Validation, Odell D. Wilson
Electronic Theses and Dissertations
The purpose of this research study was to determine characteristics of entering vocational students in Kentucky Area/State vocational schools and to develop a computerized diagnostic instrument and tutorial package for assisting students in the mastery of necessary basic skills in mathematics. After specific math skills were identified in which proficiency is required of vocational education students, item pools were constructed for each skill. The skill item pools were validated using approximately 500 public school students throughout the grades of four through eight in public schools of Harlan County, Kentucky, Lee County, Virginia, and Washington County, Tennessee. The items within each …
An Examination Of Demographic Characteristics Of Elementary School Principals And Student Achievement Scores, Winston A. Riddle
An Examination Of Demographic Characteristics Of Elementary School Principals And Student Achievement Scores, Winston A. Riddle
Electronic Theses and Dissertations
The purpose of this study was to consider the specific demographic characteristics of elementary school principals in conjunction with the academic achievement of students in an attempt to identify characteristics that might assist in the identification of effective principals. The characteristics tested were the principal's age, sex, race, tenure in the current position, total experience as a principal, level of previous teaching experience, and level of education. During and following the review of the literature, a list of characteristics was compiled and refined and a survey instrument constructed. The survey was sent to 255 randomly selected elementary school principals in …
Use Of A Unique Combination Of Recognized Methods To Construct A Model For Studying The Power Structure For A Selected Community: Comparison Of General Community And Educator Perceptions, Charlie J. Allen
Electronic Theses and Dissertations
The primary purposes of this study were three-fold. First, the reputational methodology for studying community power structures was to be enhanced with computer assisted data analysis techniques to produce a tool that educational leaders could use in the quest for understanding the community power structure. Second, the method was to be altered to produce a tool for assessing the degree to which groups of educators understand the power structure. Third, the methodology was to be applied to a selected community in order to produce a model of the power structure that could be used to gauge the effectiveness of the …
Habitat Use By Beaver Along The Big Sioux River, Charles D. Dieter
Habitat Use By Beaver Along The Big Sioux River, Charles D. Dieter
Electronic Theses and Dissertations
Habitat utilization and lodge site selection by beaver (Castor canadensis) were investigated during 1985 and 1986 along the Big Sioux River in eastern South Dakota. Because livestock grazing has affected the number and size of trees available for beaver use, the study area was portioned into grazed, ungrazed, and farmed habitat. Diameter at breast height (DBH) of trees in grazed areas was greater (p < 0.01) than in ungrazed or farmed areas. Almost half (48%) of the trees in ungrazed areas were small (DBH < 7.5 cm), while a majority (58%) of the trees in grazed areas had large diameters (DBH > 30 cm). Beaver activity was evident on 286 of 2410 (11.8%) trees (DBH > 2.5 cm) and 756 of 7,794 (9.7%) stems (DBH < 2.5cm) sampled. A greater proportion (p < 0.01) of trees were cut by beavers in ungrazed than in grazed areas. Beaver did not select tree species for cutting according to availability (p < 0.01). Green ash (Fraxinus pennsylvanica) was selected for cutting while both boxelder (Acer negundo) and hawthorn (Crataegus mollis) were selected against. Sandbar willow (Salix exigua) stems were important for food and building materials. Trees cut by beaver were significantly smaller in diameter (p < 0.01) than uncut trees. Mean distance from water of cut trees was also less (p < 0.01) than for uncut trees. Over half (52%) of the trees damaged by beaver were not killed and either resprouted or remained alive and standing. Of 8 variables examined at lodge sites, analysis indicated that the 2 most important factors in beaver lodge site selection were riverbank slope and horizontal cover density between 0.9 m and 1.8 m above ground (read from 10 m). Mean slope of the riverbank at lodge sites (40.7 degrees) was greater (p < 0.01) than at control sites (26.7 degrees), while mean horizontal cover density between 0.9 m and 1.8 m (read from 10 m) was also greater (p < 0.01) at lodge sites (53%) than at control sites (28%). Ungrazed habitat was selected by beaver for lodge sites, and grazed areas were selected against. Although 40% of the study area was ungrazed, 27 of 33 (82%) active lodges were located in these areas. Ungrazed areas along the Big Sioux River are important for beaver populations and selection for these areas by beaver reflects habitat quality.
First Year Growth And Survival Of Walleyes In Power Plant Evaporation And Holding Reservoirs, Michael P. Faler
First Year Growth And Survival Of Walleyes In Power Plant Evaporation And Holding Reservoirs, Michael P. Faler
Electronic Theses and Dissertations
Walleyes (Stizostedion vitreum) were stocked at a rate of 88 fish/hectare in two South Dakota power plant reservoirs and their growth and survival were monitored for one year. Length, weight, and survival of walleyes were significantly (P < 0.05) different between the two reservoirs. The walleyes attained a mean length of 230 mm (range 192 - 265 mm) in the Evaporation Reservoir and 205 mm (range 177-250 mm) in the Holding Reservoir. Mean weights attained by the fish were 104 g (range 65 - 165 g) in the Evaporation Reservoir and 89 g (range 48 - 135 g) in the Holding Reservoir. The growth rates of walleyes in the two reservoirs were inversely related to survival and standing crops. Walleye survival in the Evaporation Reservoir was 1.5% (0.95 C.L., 0.9 - 2.8%) with a standing crop of 0.13 kg/hectare, whereas survival in the Holding Reservoir was 17.2% (0.95 c,L., 13.5 - 22.9%) with a standing crop of 1.33 kg/ hectare. Walleye standing crop estimates, calculated in terms of weight of fish per volume of water beneath the ice, -were similar in the two reservoirs1 standing crops were 0.06 kg/1000 m3 in the Evaporation Reservoir, and 0.08 kg/1000 m3 in the Holding Reservoir. Estimated forage fish standing crops were 1 .21 kg/hectare in the Evaporation Reservoir and 1.91 kg/hectare in the Holding Reservoir.
Impacts Of Stocking Herbivorous Fishes For Aquatic Macophyte Removal Upon South Dakota Ponds, John Christopher Young
Impacts Of Stocking Herbivorous Fishes For Aquatic Macophyte Removal Upon South Dakota Ponds, John Christopher Young
Electronic Theses and Dissertations
Aquatic macrophyte removal by herbivorous fishes was investigated to determine changes in the predator-prey relationship of largemouth bass, Micropterus salmoides, and bluegills, Lepomis macrochirus, stocked into 15 prairie ponds. Monosex grass carp, Ctenopharyngodon idella, and hybrid grass carp, Ctenopharyngodon idella x Hypophthalmicthys nobilis, were each stocked at a rate of 247 fish/hectare into five study ponds. Largemouth bass and bluegills were each stocked into 12 study ponds at 247 fish/hectare in July, and 1235 fish/hectare in September, 1984, respectively. Additional largemouth bass were stocked at a rate of 247 fish/hectare into nine study ponds in July, 1985. Conductivity was the …
Rainbow Trout Cage Culture Utilizing Different Strains, Stocking Densities, And Feeding Methods In Eastern South Dakota Dugout Ponds, Jay Patrick Maher
Rainbow Trout Cage Culture Utilizing Different Strains, Stocking Densities, And Feeding Methods In Eastern South Dakota Dugout Ponds, Jay Patrick Maher
Electronic Theses and Dissertations
Rainbow trout (Salmo gairdneri) cage culture techniques were investigated in dugouts as part of a continuing program to evaluate the potential of small-scale, landowner-based aquaculture operations. Trout raised in the study did not reach a marketable size (200 g) due to the short growing season and small size at stocking. No significant (P >0.05) differences in growth were detected between stocking densities of 60, 80, 100, and 120 fish/m³. Demand feeding resulted in significantly greater length (P≤0.01), weight (P≤0.01), and relative weight (P≤0.05) than hand feeding in both years tested. Rainbow trout of the Hildebrand strain reached a significantly greater …
Impact Of Grazing Systems On Rodent And Cottontail Rabbit Populations In South Texas, Meenakshi Nagendran
Impact Of Grazing Systems On Rodent And Cottontail Rabbit Populations In South Texas, Meenakshi Nagendran
Electronic Theses and Dissertations
Study sites were established at Rob and Bessie Welder Refuge and Encino Division of the King Ranch in south Texas to monitor the impact of Short-duration cell grazing (SDG) and Continuous grazing on small mammal and cottontail rabbit populations. Small mammals were live trapped (With occasional snap trapping) and cottontails were spotlighted. Vertical and horizontal components of vegetative structure were measured in terms of percent cover. There was paucity of rodents on the Welder Refuge – 8 captures for 9705 trap nights. In 1984 127 cottontails/km) and in 1985-1986 64 cottontails were seen along 436.8 km of road transects (.14 …
Biotic Responses On Typha-Monodominant Semipermanent Wetlands To Cattle Grazing, Bryan David Schultz
Biotic Responses On Typha-Monodominant Semipermanent Wetlands To Cattle Grazing, Bryan David Schultz
Electronic Theses and Dissertations
Changes in the vegetative composition of most palustrine emergent semi-permanent wetlands is primarily a function of water level fluctuation. However, some wetlands do not exhibit vegetational shifts since emergent species such as Typha persist under flooded as well as drought conditions. Numerous techniques to control cattails such as burning and herbicide application have been suggested. The objective of this study was to test the use of cattle grazing as a method of controlling dense cattail stands in semi-permanent wetlands to improve breeding duck habitat. Plots (.81 ha) were established in the emergent zone in each of two wetlands (≤ 4 …
Evaluation Of Largemouth Bass And Bluegill Stocking Strategies In South Dakota Ponds, David M. Gilbraith
Evaluation Of Largemouth Bass And Bluegill Stocking Strategies In South Dakota Ponds, David M. Gilbraith
Electronic Theses and Dissertations
Three fish-stocking methods were evaluated to determine the effects of stocking density and chronology on largemouth bass (Micropterus salmoides) and bluegill (Lepomis macrochirus) survival, growth, and reproductive success during 1983-1985. Two densities of split-stocking largemouth bass with bluegills were compared to the simultaneous introduction of both species. First-year largemouth bass survival was low and variable among treatments. Survival of largemouth bass ranged from 0-85% and averaged 25% among treatments. Bluegill survival, for the first and second years combined, ranged from 0-60% and averaged 22% among two split-stocking treatments. Thirty-six percent of study ponds experienced at least partial winterkill during the …
Talcott Parsons' Economic Sub-Systems Model And County-To-County Net Migration Patterns In South Dakota 1975-1980, Richard E. Barnes
Talcott Parsons' Economic Sub-Systems Model And County-To-County Net Migration Patterns In South Dakota 1975-1980, Richard E. Barnes
Electronic Theses and Dissertations
This paper explores Talcott Parsons' theoretical use of social systems models with applications for understanding the ability of a social system to exploit external economic resources, both capital and labor, while examining the pattern maintenance functions of the system that maintain the population base. As social systems address common problems, four basic categories of activity are delineated by Parsons. Concentrating on the vertical cells of Adaptation and Latency, the economic sub-system is examined for its affects upon the migration process. Four distinct economic types are identified with four different patterns of migration based upon the theoretical perspectives of Parsons. This …
Production And Environmental Simulations For Livestock Housing, Mark Allen Diesch
Production And Environmental Simulations For Livestock Housing, Mark Allen Diesch
Electronic Theses and Dissertations
An animal's environment is affected by all surrounding conditions. The thermal environment; the effects of air temperature, moisture, and velocity balanced with animal heat and moisture production, is part of the total environment. It is one of the most important influences of an animal's surroundings since 25 to 40 percent of an animal's gross feed energy is converted to heat and moisture loss to the environment. Poor livestock thermal environments occur because of poor livestock structures. A structure with the correct thermal environment will provide conditions such that the homeothermic animal will be in a zone of thermal comfort. If …
Reciprocal Ovary Transplantation As A Means To Study Reproductive Function In Female Lethal Yellow Mice (A̲Y̲/A̲: C57bl/6j), Gerald Alan Dickens
Reciprocal Ovary Transplantation As A Means To Study Reproductive Function In Female Lethal Yellow Mice (A̲Y̲/A̲: C57bl/6j), Gerald Alan Dickens
Electronic Theses and Dissertations
The first study was conducted to determine whether the previously observed reproductive failures in aging obese lethal yellow (AY/a) females are due primarily to: (1) intrinsic defects within AY/a ovaries or (2) systemic defects extrinsic to AY/a ovaries such as sites within the hypothalamus or pituitary gland. A second experiment was conducted to assess uterine capacity in AY/a females. In order to accurately measure uterine capacity in AY/a females, it was necessary to separate uterine effects from embryo (AY/a) effects. Thus by conducting the appropriate ovary transplantations, one could test uterine capacity in AY/a females in the absence of AY/a …
Asset-Liability Management/Interest Rate Risk Of Banks In South Dakota, Pius Reis
Asset-Liability Management/Interest Rate Risk Of Banks In South Dakota, Pius Reis
Electronic Theses and Dissertations
The purpose of this research is to evaluate the asset-liability management strategy and interest rate risk of banks in South Dakota from 1984 to 1986. The specific objectives of this research are: 1. To examine and analyze the trends in market interest rates from 1984-1986. 2. To evaluate and compare the asset-liability management strategy and composition of banks by asset size. 3. To evaluate and compare the asset-liability management strategy and composition of banks by crop reporting district. 4. To examine, analyze and compare interest rate risk exposure of banks by asset size and by crop reporting district. This study …
Dr. Alfred Hume : His Leadership As Vice Chancellor, Acting Chancellor, And Chancellor Of The University Of Mississippi (1905-1945) / By Frances Egger Watson, Frances Egger Watson
Dr. Alfred Hume : His Leadership As Vice Chancellor, Acting Chancellor, And Chancellor Of The University Of Mississippi (1905-1945) / By Frances Egger Watson, Frances Egger Watson
Electronic Theses and Dissertations
No abstract provided.
Chickpeas As A Protein And Energy Supplement For High Producing Dairy Cows, Darryl Lynn Hadsell
Chickpeas As A Protein And Energy Supplement For High Producing Dairy Cows, Darryl Lynn Hadsell
Electronic Theses and Dissertations
Thirty lactating Holstein cows were randomly assigned to one of three diets to evaluate chickpeas as a dietary supplement from wk 4 to 16 postpartum. Diets contained chickpeas at 0, 50, and 100 % of the concentrate dry matter in place of corn and soybean meal. Total mixed diets, fed individually, contained concentrate corn silage and alfalfa hay at 52, 32, and 16 % of the dry matter. Milk yield (34.5, 35.1, 35.7 kg/d) was higher for cows fed 100 % chickpeas than 0 % chickpeas. Fat (3.06, 3.09, 3.28 %) was highest for cows fed 100 % chickpeas. Milk …
Detection And Description Of Sulfonylurea Herbicide Breakdown In Soil, Mark A. Peterson
Detection And Description Of Sulfonylurea Herbicide Breakdown In Soil, Mark A. Peterson
Electronic Theses and Dissertations
Corn (Zea mays L. 'Sakata TS60’), grain sorghum [Sorghum bicolor (L.) Merr. 'Sokota 844'], and flax (Linum usitatissimum L. 'Culbert 79') were tested to determine suitability for petri dish bioassays of chlorsulfuron {2-chloro-N-[[ (4-methoxy-6-methyl-1,3, 5-triazin-2-yl) amino]carbonyl]benzenesulfonamide}, metsulfuron {2-[[[[ (4-methoxy-6-methyl-1,3,5-triazin-2-yl) amino] carbonyl]amino]sulfonyl-]benzoic acid} and chlorimuron {2-[[ (4-chloro-6-methoxypyrimidine-2-yl) amino carbonyl] aminosulfonyl]benzoic acid, ethyl ester}. Sorghum was not an acceptable bioassay species. Corn had a significant response to all three herbicides. Flax was the best indicator species in both soil types tested. The effects of herbicide concentration, temperature, moisture, and pH on decomposition rate of chlorsulfuron and metsulfuron were studied. Both chlorsulfuron and …
A History Of Women's Higher Education In Mississippi, Conrid Clyde Berry
A History Of Women's Higher Education In Mississippi, Conrid Clyde Berry
Electronic Theses and Dissertations
No abstract provided.
A Comparison Of Osmotic Adjustment And Activity Of Cell Wall Associated Enzymes During Short-Term Drought In Winter Wheat, Russell William Gesch
A Comparison Of Osmotic Adjustment And Activity Of Cell Wall Associated Enzymes During Short-Term Drought In Winter Wheat, Russell William Gesch
Electronic Theses and Dissertations
A study was conducted in South Dakota to examine the affects of weather on growth and production of agronomic crops. Over a 17-year period of climatic variables were collected on a daily basis and put into weekly means values. It was reported that a frequent cause of loss for winter cereals was in early spring, when the conditions of extreme fluctuations of temperature and the rehydration state of the tissue affected survival. Osmotic adjustment is one metabolically controlled process that is compatible with the timeframe of weather change during this period which might ameliorate the adverse affects of excess free …
Music School : A Dance With John Updike's Poetry, Nan Steinley
Music School : A Dance With John Updike's Poetry, Nan Steinley
Electronic Theses and Dissertations
Few authors can live on the income produced solely by their writing. John Updike is among the even more rare writers who not only has lived but prospered by his pen. As one of America's most prolific and successful living writers, he is virtually guaranteed nation-wide recognition, as well as a position on best seller lists, whenever he publishes anything. Born in 1932 in Shillington, Pennsylvania, Updike was the only child of parents who nurtured his creative talents. His father was a mathematics teacher at Shillington High School for more than thirty years and his mother was and still is …
Habitat Selection And Sexual Suggestion Of Rocky Mountain Bighorn Sheep In Custer State Park, South Dakota, Larry J. Layne
Habitat Selection And Sexual Suggestion Of Rocky Mountain Bighorn Sheep In Custer State Park, South Dakota, Larry J. Layne
Electronic Theses and Dissertations
Spatial segregation between Rocky Mountain bighorn sheep (Ovis canadensis canadensis) ram and ewe herds has been documented by Geist (1971), Geist and Petocz (1977), Shank (1979), Morgantini and Hudson (1981), and Hogg (1983), where ram herds consist of mature males approximately 4 years old and older and ewe herds are comprised of all other individuals. Geist (1971), Shank (1979), and Hogg (1983) have shown that segregation occurs year-round except during the breeding season (November and December) when the sexes congregate on a traditional breeding range (cf. Geist 1971, p 209). These studies also have shown that the sexes remain separated …
Zeolite Ammonia Removal From Catfish Pond Waters, Mauricio Quiros
Zeolite Ammonia Removal From Catfish Pond Waters, Mauricio Quiros
Electronic Theses and Dissertations
No abstract provided.
Analysis Of Design Parameters For Improved Ultrasonic Solid Dielectric Microphones / By James Clay Shipps, James Clay Shipps
Analysis Of Design Parameters For Improved Ultrasonic Solid Dielectric Microphones / By James Clay Shipps, James Clay Shipps
Electronic Theses and Dissertations
No abstract provided.
Steam Gasification Of Mississippi Lignite In A Recycle Reactor, Gregory A. Ellard
Steam Gasification Of Mississippi Lignite In A Recycle Reactor, Gregory A. Ellard
Electronic Theses and Dissertations
No abstract provided.
2, 3-Butanediol Production By Immobilized Klebsiella Oxytoca (At Cc 13182), Guillermo Alfonso Pardo
2, 3-Butanediol Production By Immobilized Klebsiella Oxytoca (At Cc 13182), Guillermo Alfonso Pardo
Electronic Theses and Dissertations
No abstract provided.
Platonic Elements In Three Modern Masters : Braque, Matisse, Mondrian, Cliff Getty Mcmahon
Platonic Elements In Three Modern Masters : Braque, Matisse, Mondrian, Cliff Getty Mcmahon
Electronic Theses and Dissertations
No abstract provided.
An Investigation Of Some Techniques For Combining The Method Ofmoments And Long Wire Solutions, Hui Cai
An Investigation Of Some Techniques For Combining The Method Ofmoments And Long Wire Solutions, Hui Cai
Electronic Theses and Dissertations
No abstract provided.
A Command Interpreter For Xinu / By Joseph Jay Schiller, Joseph Jay Schiller
A Command Interpreter For Xinu / By Joseph Jay Schiller, Joseph Jay Schiller
Electronic Theses and Dissertations
No abstract provided.
In-Vitro Interactions Of Sucralfate With Selected Adrenergic Beta Blockers / By Ramachandran Ramachandran Thirucote, Ramachandran Ramachandran Thirucote
In-Vitro Interactions Of Sucralfate With Selected Adrenergic Beta Blockers / By Ramachandran Ramachandran Thirucote, Ramachandran Ramachandran Thirucote
Electronic Theses and Dissertations
No abstract provided.