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Articles 8641 - 8670 of 9775
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Special Reflectance Of Hydrophytes, Robert G. Best
Special Reflectance Of Hydrophytes, Robert G. Best
Electronic Theses and Dissertations
Identification of hydrophytes will improve the delineation and classification of wetlands on remotely sensed imagery. Spectral reflectance measurements of 10 species of hydrophytes were made with an Exotach radiometer during three phenological stages, flowering and early seed, senescence, and early emergent. Reflectance data were analyzed to determine significant (≥.95) reflectance differences between species in each of four spectral regions during each phenological stage. Eight species had significantly (≥.95) different reflectances during the flower and early seed stage. Only one species could not be spectrally separated during at least one phenological stage. The results indicate that films sensitive to both visible …
Winter Limnological Conditions In A Prairie Pothole And The Application Of Molecular Oxygen, Richard A. Fike
Winter Limnological Conditions In A Prairie Pothole And The Application Of Molecular Oxygen, Richard A. Fike
Electronic Theses and Dissertations
The physical, chemical, and biological conditions in Round Lake, Oakwood Lakes State Park, South Dakota were monitored during the 1977-1978 winter, and reaeration utilizing molecular oxygen was evaluated as a practical method to prevent winterkill. Ice and snow conditions after 20 December, 1977 allowed little light penetration, and phytoplankton numbers (6174/ml to 1668/ml) and chlorophyll concentration (46.6 mg/L to 14.1 mg/L) decreased throughout the winter. Aquatic bacteria and fungi comprised from 87.0% to 93.7% by number of the total cells identified (phytoplankton, bacteria, and fungi) in the lake water under ice. Dissolved oxygen declined to anoxic conditions after 19 January, …
An Econometric Analysis Of The Cash Receipts From Crops In South Dakota, Dennis James Senger
An Econometric Analysis Of The Cash Receipts From Crops In South Dakota, Dennis James Senger
Electronic Theses and Dissertations
It is the intent of this research effort to fill a void left in the previous research efforts. This study will not be concerned with how farmers adjust production in response to price or government policies. The attempt will be made to adept single equation regression models to the examination of how the level of prices and supplies affect a major portion of the income farming sector receives, specifically the cash crop receipts. The specific objectives of this study are as follows: 1. To construct an economet5ric model of South Dakota crop receipts. 2. To demonstrate the model’s use as …
Nesting Chronology Of South Dakota Ducks, Stephen A. Tessmann
Nesting Chronology Of South Dakota Ducks, Stephen A. Tessmann
Electronic Theses and Dissertations
Duck broods were censused on 476 randomly selected plots in South Dakota during July of the years 1973 through 1976. Broods were also censused on wetlands located off the study plots both in July and August of these years, except in 1976 when no August counts were made. Hatching and nest initiation dates were determined by back dating from brood age classes. Early nesting species were mallards (Anas platyrhynchos) and pintails (A. acuta). Northern shovelers (A. clypeata), redheads (Aythya americana), and canvasbacks (A. valisineria) were intermediate nesters while blue-winged teal (Anas discors), gadwalls (A. strepera), and American wigeons (A. americana) …
Catfish Cage Culture In A South Dakota Power Plant Cooling Reservoir, Gary P. Wheeler
Catfish Cage Culture In A South Dakota Power Plant Cooling Reservoir, Gary P. Wheeler
Electronic Theses and Dissertations
Studies were conducted to evaluate the Big Stone Power Plant cooling reservoir in northeastern South Dakota as a site for cage culturing channel catfish (Ictalurus punctatus) for market and sport fishery stocking. Temperatures suitable for catfish culture (21-32 C) were present in the reservoir from mid-March through mid-September 1978 and from mid-October through 4 November 1978, the end of the study period. Mean values of chemical parameters analyzed included dissolved oxygen - 8.8 mg/1, total available chlorine- 0.13 mg/1, pH - 8.6, specific conductance - 2228 micromhos/cm, total hardness - 1128 mg/1 as CaC03, calcium hardness - 570 mg/1 as …
Breeding Waterfowl Use Of Intermittent Streams, Mchenry County, North Dakota, Daniel E. Hubbard
Breeding Waterfowl Use Of Intermittent Streams, Mchenry County, North Dakota, Daniel E. Hubbard
Electronic Theses and Dissertations
Thirty-three 425 m segments of 4 intermittent streams in north central North Dakota were censured for breeding pairs of waterfowl in 1977 and 1978. Pair count data were available for 1976. Emphasis of this study was placed on the narrow meandering portions of the streams. High dabbling duck (Anas spp.) densities were observed in 1977 and 1978; 6.11 pairs per ha and 5.60 pairs per ha, respectively, for the first census of each year. Accepting blue-winged teal (A. discors), numbers of dabbler pairs were similar in 1976 and 1978. Dry conditions in 1977 caused lower numbers of all species of …
Habitat Preferences And Censusing Of Waterfowl Broods On Stock Ponds In South Central South Dakota, Mark A. Rumble
Habitat Preferences And Censusing Of Waterfowl Broods On Stock Ponds In South Central South Dakota, Mark A. Rumble
Electronic Theses and Dissertations
Waterfowl broods on stock ponds in south central South Dakota were surveyed in 1977 and 1978 to compare flush and observation techniques for censusing broods and to determine waterfowl brood habitat preferences. Results indicated that 72-8% of the broods present were censused by either technique alone. No differences were indicated between the 2 techniques when analyzed by species. For total brood counts, a significant (P<0.05) difference was indicated for 1 of the 4 sample periods. Differences were found between the 2 techniques for certain age-classes of species and age-classes overall. Visibility correction factors were calculated for each species based on the percentage of known broods censused by each technique. Brood habitat preferences were examined using multiple regression and discriminant analyses of 33 pond and upland variables. Ponds were selected in a limited size range (0.71-2, 70 ha) to reduce variation in numbers of broods per pond due to pond size. However, variables indicative of pond size were significantly and positively associated to brood use of ponds in 8 of 9 analyses. Potential brood escape cover such as Polygonum spp. and Eleocharis spp. were positively associated with mallard (Anas platyrhynchos), (A. strepera), northern shoveler (A. clypeata) and class 1 broods. Large differences in numbers of broods on study ponds between the 2 years were likely due to increased nesting cover provided by yellow sweet clover (Melilotus officinalis). Study ponds with higher pH and more submersed aquatic vegetation had more brood use.
The Teaching Of Coin Names And Country Of Origin To A Retarded Population : The Relationship Between Receptive Language And Productive Speech, David Downs Powers
The Teaching Of Coin Names And Country Of Origin To A Retarded Population : The Relationship Between Receptive Language And Productive Speech, David Downs Powers
Electronic Theses and Dissertations
No abstract provided.
The Effects Of Extrinsic Reinforcement On The Performance And Interest Of Children Enrolled In Gifted Classes / Beverly Ann Stubblefield, Beverly Ann Stubblefield
The Effects Of Extrinsic Reinforcement On The Performance And Interest Of Children Enrolled In Gifted Classes / Beverly Ann Stubblefield, Beverly Ann Stubblefield
Electronic Theses and Dissertations
No abstract provided.
Univalent Functions, Pamela Ross Korndorffer
Univalent Functions, Pamela Ross Korndorffer
Electronic Theses and Dissertations
No abstract provided.
Cuna Indian Adoptation : The Mola As A Vehicle Of Cultural Identity, Thomas Cleveland Carter Birchett
Cuna Indian Adoptation : The Mola As A Vehicle Of Cultural Identity, Thomas Cleveland Carter Birchett
Electronic Theses and Dissertations
No abstract provided.
A Comparison Of Metric And Non-Metric Discriminant Analysis Techniques In Two Populations, David Byron Kazar
A Comparison Of Metric And Non-Metric Discriminant Analysis Techniques In Two Populations, David Byron Kazar
Electronic Theses and Dissertations
No abstract provided.
A Study Of The Cover Index And The Matching Index Of A Multigraph, Mary Ellen Kirby
A Study Of The Cover Index And The Matching Index Of A Multigraph, Mary Ellen Kirby
Electronic Theses and Dissertations
No abstract provided.
The Effect Of Awareness Of Assessment On Drinking Behavior, Timothy Richard Wallace
The Effect Of Awareness Of Assessment On Drinking Behavior, Timothy Richard Wallace
Electronic Theses and Dissertations
No abstract provided.
The Determination Of Solubility Data For The Four-Component System Nacl-Naonahcoh At 25 / By Larry Yee, Larry Yee
Electronic Theses and Dissertations
No abstract provided.
Yeats' Cuchulain And A Vision / By Joann Reiner Stefani, Joann Reiner Stefani
Yeats' Cuchulain And A Vision / By Joann Reiner Stefani, Joann Reiner Stefani
Electronic Theses and Dissertations
No abstract provided.
Effective Diffusivities By The Gas Chromatography Technique. Studies On The System N-Butane, Ling-Kai P. Hsu
Effective Diffusivities By The Gas Chromatography Technique. Studies On The System N-Butane, Ling-Kai P. Hsu
Electronic Theses and Dissertations
No abstract provided.
Matthew Arnold, The Development Of A Social Critic, Annette Hoines
Matthew Arnold, The Development Of A Social Critic, Annette Hoines
Electronic Theses and Dissertations
Since time began, mankind has learned to cope with change as a consistent element of life. History is partly a record of man's response to changes in people, in physical circumstances, in social conditions, in moral attitudes. Change, therefore has always been an integral part of living, but in Victorian England, the changes taking place were so tremendous, so numerous and so widespread in their effect as to have a dominating influence on the work of certain authors or the period. The Victorian period, during the decades 1850 – 1870, rife with change and turbulence, saw the rise of Matthew …
Purification And Characteristics Of 1, 2-Dioxygenase From Mycobacterium Smegmatis, James Carlton Norris
Purification And Characteristics Of 1, 2-Dioxygenase From Mycobacterium Smegmatis, James Carlton Norris
Electronic Theses and Dissertations
No abstract provided.
An Evaluation Of The Deprospo Survey As A Tool For Measuring Library Performance, Llewllyn Henry Cox
An Evaluation Of The Deprospo Survey As A Tool For Measuring Library Performance, Llewllyn Henry Cox
Electronic Theses and Dissertations
No abstract provided.
An Analysis Of Three Selected Mental Maturity Measures In Predicting Academic Achievement Of Students For Educational Decision Makers, Robert M. Davis
An Analysis Of Three Selected Mental Maturity Measures In Predicting Academic Achievement Of Students For Educational Decision Makers, Robert M. Davis
Electronic Theses and Dissertations
The Problem. The problem was to determine by comparison which of the three selected mental maturity measures was the best predictor of achievement in mathematics and reading as measured by the Peabody Individual Achievement Test. (Abstract shortened.)
Development And Applications Of Poisson, Jensen, And Poisson-Jensen Formulas, Frank Eugene Westmoreland Ii
Development And Applications Of Poisson, Jensen, And Poisson-Jensen Formulas, Frank Eugene Westmoreland Ii
Electronic Theses and Dissertations
No abstract provided.
Compressed Speech As An Aid In Improving The Reading Skills Of Junior High School Students, James R. Pierce
Compressed Speech As An Aid In Improving The Reading Skills Of Junior High School Students, James R. Pierce
Electronic Theses and Dissertations
Purpose. The purpose of this study was to determine the extent to which compressed speech recordings and regular rate speech recordings could be used to improve the reading speed, accuracy, and comprehension of junior high school students. (Abstract shortened.)
A Comparison Of Twenty Brain-Injured And Twenty Non-Brain-Injured Childrens' Performance On The Illinois Test Of Psycholinguistic Abilities, Brenda Kay Wildermuth
A Comparison Of Twenty Brain-Injured And Twenty Non-Brain-Injured Childrens' Performance On The Illinois Test Of Psycholinguistic Abilities, Brenda Kay Wildermuth
Electronic Theses and Dissertations
No abstract provided.
Bird Utilization Of Woodland Habitat In The Eastern Quarter Of South Dakota, John M. Emmerich
Bird Utilization Of Woodland Habitat In The Eastern Quarter Of South Dakota, John M. Emmerich
Electronic Theses and Dissertations
Bird utilization of narrow, riparian woodland; riparian; block-like, tree claim; and linear, single-row windbreak habitats in the eastern quarter of South Dakota were studied during the spring migration, reproductive, and winter seasons. The relative importance of these three habitats and multi-row shelterbelt habitat was evaluated using bird species diversity (BSD), bird population density, and habitat preferences of individual bird species. Cluster analysis delineated distinctive vegetation cover types in each of the three habitats studied. Bird communities associated with each cover type were tabulated for comparison purposes and predication capabilities. Multiple regression analysis predicted physical and vegetation features of each habitat …
Effects Of Grazing Systems On Sharp-Tailed Grouse Habitat, Samuel N. Mattise
Effects Of Grazing Systems On Sharp-Tailed Grouse Habitat, Samuel N. Mattise
Electronic Theses and Dissertations
Effects of grazing systems on sharp-tailed grouse (Pedioecetes phasianellus jamesi) nesting and brooding habitats in the Little Missouri National Grasslands of southwestern North Dakota were evaluated. Three grazing allotments with deferred-rotation grazing systems and three allotments with season-long grazing systems were randomly selected for study. Fifty measurements of vegetation were taken using the height-density pole on line transects in each of three range sites; rolling grasslands, upland grasslands and lowland draws. Vegetation was sampled in late spring, summer and fall of 1976 and early spring of 1977. Average height-density of vegetation for the season-long grazing system was significantly greater than …
Evaluation Of Fish Stocking In Southeastern South Dakota Ponds, Paul J. Peeters
Evaluation Of Fish Stocking In Southeastern South Dakota Ponds, Paul J. Peeters
Electronic Theses and Dissertations
A mail survey was sent to owners of 220 ponds which had received hatchery fish. Based on 187 pond owner responses, at most 45 (24%) of the ponds still contained the fishes stocked. Pond dryness and/or winterkill attributed to the failure of 121 (65%) of the ponds. A subsequent field survey of 30 ponds identified fish populations of recreational value. Attempts were made to identify important pond parameters that contributed to successful fish populations. Aᵼ (percent harvestable fish), F/C (forage to carnivore ratio), balance (in or out), and a scale of balance were the dependent variable used to describe successful …
Wildlife Habitat In The James River Valley, South Dakota, L. Paul Schneider
Wildlife Habitat In The James River Valley, South Dakota, L. Paul Schneider
Electronic Theses and Dissertations
A wildlife habitat inventory was conducted on the 12 485 ha study area of the James River floodplain in north-eastern South Dakota. Included were vegetation mapping, small mammal trapping, waterfowl breeding pair counts, waterfowl brood counts, bird census routes, and general observations. Natural vegetation consisted of 3181 ha of grassland, 2002 ha of woodland, 1115 ha of savannah, and 392 ha of marshland. Small mammal trapping revealed low densities of mostly white-footed mice (Peromyscus spp.). No vegetation type was more valuable to small mammals than any other. Waterfowl breeding pairs, mostly mallard, blue-winged teal, and wood duck, numbered 244 in …
Specificity Of Antisera Against Hordeum Vulgare Ribonuclease And Serological Quantitation Of The Enzyme In Tissue Extracts, Steven Bryan Hawthorne
Specificity Of Antisera Against Hordeum Vulgare Ribonuclease And Serological Quantitation Of The Enzyme In Tissue Extracts, Steven Bryan Hawthorne
Electronic Theses and Dissertations
Specific rabbit antisera against purified seedling RNase I from both a hardy (Dicktoo) and less-hardy (Tennessee Winter) cultivar of winter barley was obtained using a 1 mg injection schedule. Both antisera formed a single precipitin band on double immunodiffusion and immunoelectrophoresis when reacted with the homologous crude tissue extract. RNase antigen from either cultivar was highly cross-reactive with both antisera. Passive hemagglutination inhibition was used in an attempt to distinguish purified RNase from both cultivars. A consistent difference in anti-RNase serum specificity between cultivars was shown, but the difference observed by this method was not sufficient to conclude structural differences …
Status And Reflections Of Augustana College Athletic Letterwinners, Mark O. Ekeland
Status And Reflections Of Augustana College Athletic Letterwinners, Mark O. Ekeland
Electronic Theses and Dissertations
The purpose of this study was to determine the present status of intercollegiate varsity athletic letterwinners [sic] of Augustana College, Sioux Falls, South Dakota. Of equal importance to this study were the opinions and attitudes of these athletes toward their varsity athletic experience at Augustana College. All varsity letterwinners [sic] included in records obtained from the Alumni and Athletic office files, 1920 to 1977, were sent a questionnaire. The data were analyzed through calculation of the total number of responses to each questionnaire item, as well as percentages, and averages. The questionnaire was mailed to 958 letterwinners [sic]. Five-hundred and …