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Articles 287821 - 287850 of 303061

Full-Text Articles in Physical Sciences and Mathematics

Experimental Summary 1979, M W. Perry Jan 1979

Experimental Summary 1979, M W. Perry

Experimental Summaries - Plant Research

1. Variety x time of planting x Septoria control - Wheat 79MT5, 79BA7*, 79KA8*. 2. Wheat potential yield trials 79KA17, 79KA8* .Reported separately. 3. Yield analysis of historically important wheats 79M4, 79M5, 79WH8, 79WH14, 79A3. 4. Cereal seeding rates 79ME4, 79KA7*, 79MT4*. 5. Miscellaneous crop trials = high rainfall 79BR4, 79MA4, 79MA5. 6. Cycocel trials 79MT6, 79MT7, 79GE30, 79M09, 79M010*, 79GE4. 7. Oat Genotype x Time of Planting 79MT3. 8. Lupinus cosentinii regeneration trials 79GE38, 79GE42, 79GE43. * Results not yet available. Other trials Wheats 79NA9 - Stock damage, abandoned. 79KA38 - Not harvested. 79A2, 79B7, 79BA5 - not sown, …


A. Inoculum Of The Take-All Fungus And Prediction Of Take-All. B. Hypovirulent Strains And Control Of Take-All., K Sivasithamparam Jan 1979

A. Inoculum Of The Take-All Fungus And Prediction Of Take-All. B. Hypovirulent Strains And Control Of Take-All., K Sivasithamparam

Experimental Summaries - Plant Research

CONTENTS A. Inoculum of the Take-all-Fungus and the Prediction of Take-all 1. Inoculum from grass and wheat residues. a. Trial at Reichstein's, Esperance. b. Trial at Wallace's, Esperance. 2. Inoculum size and take-all. a. Inoculum fraction of a Jerramungup soil. b. Interaction of inoculum size with soil temperature. 3. Effect of various fertilizer treatment on inoculum - 79LG25. 4. Time of sampling and inoculum. a. Newdegate. b. Kulin. c. Badgingarra. 5. Take-all and Hypovirulent strains a. Newdegate - 78LG30. b. Esperance - 79E14.


Timing And Rate Of Fungicides For Septoria Control, A G. Brown Jan 1979

Timing And Rate Of Fungicides For Septoria Control, A G. Brown

Experimental Summaries - Plant Research

Fungicides on early sown crops 79A11 Avondale 79BA29 Badgingarra 79C11 Chapman 79E19 Esperance 79WH33 Wongan hills 79MT29 Mt. Barker 79KA19 Woodanilling Effect of fungicide on early sown wheat crops 79AL24 Chillinup 79JE7 Jerramungup 79M029a Moora 79M029b w. Dandaragan 79NO4 Bolgup


Investigations Of Ryegrass Toxicity, B A. Stynes Jan 1979

Investigations Of Ryegrass Toxicity, B A. Stynes

Experimental Summaries - Plant Research

Development of toxicity in the field. Experiment – 79KA13. Location – C. Butterworth, Katanning. The effect of herbicides and growth regulants on gall development. Experiment – 79KA14. Location - C. Butterworth, Katanning. Effect of burning on the production of galls. Experiment – 79KA9. Location - L. Blight, Gnowangerup; K. Butterworth, Katanning; C. Hanna, Katanning; J. Shepherdson, Gnowangerup. Table 1 Previous land use and characteristics of fires at four farms where fields were burnt in autumn to reduce the level of toxicity of ryegrass in the subsequent spring pasture. Table 2 The numbers and relative proportions of galls retained in the …


A Discussion Of An Empirical Bayes Multiple Comparison Technique, Donna Baranowski Jan 1979

A Discussion Of An Empirical Bayes Multiple Comparison Technique, Donna Baranowski

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

This paper considers the application and comparison of Bayesian and nonBayesian multiple comparison techniques applied to sets of chemical analysis data. Suggestions are also made as to which methods should be used.


Gas Phase Laser Induced Fluorescence Spectroscopy Of Cfcl, Stephen E. Bialkowski, David S. King, John C. Stephenson Jan 1979

Gas Phase Laser Induced Fluorescence Spectroscopy Of Cfcl, Stephen E. Bialkowski, David S. King, John C. Stephenson

Stephen E. Bialkowski

The CFCl radical has been produced in the gas phase by both IR multiphotonphotolysis of C2F3Cl and He metastable reaction with C2F3Cl. Single vibronic level fluorescence and excitation spectra taken of this species have yielded sufficient information to determine certain vibronic constants. The excited state was found to have an origin of T0=25 283±5 cm−1 with vibrational frequencies: ω2′=394±3 cm−1 and ω3′=739±5 cm−1. In the ground state, the vibrational frequencies were found to be: ω3″=118±10 cm−1, ω2″=448±6 cm …


Equatorialelectric Fields During Magnetically Disturbed Conditions, 2. Implications Of Simultaneousauroral And Equatorial Measurements, C. A. Gonzales, M. C. Kelley, Bela G. Fejer, J. F. Vickrey, R. F. Woodman Jan 1979

Equatorialelectric Fields During Magnetically Disturbed Conditions, 2. Implications Of Simultaneousauroral And Equatorial Measurements, C. A. Gonzales, M. C. Kelley, Bela G. Fejer, J. F. Vickrey, R. F. Woodman

Bela G. Fejer

Simultaneous auroral and equatorial electric field data are used along with magnetic field data to study anomalous electric field patterns during disturbed times. During some substorms, accompanied by ring current activity, the worldwide equatorial zonal electric field component reverses from the normal pattern. This is interpreted as a partial closure of high latitude field aligned currents in the dayside, low latitude ionosphere. These currents flow westward across the dayside. In several cases the zonal equatorial electric field component was nearly identical in form to the zonal auroral component, indicating the close electrical coupling between these regions. Less certain, but equally …


Pheasant Use Of Wetlands During The Winter And Application Of Landsat Imagery For Assessing Winter Habitat, Signe Sather-Blair Jan 1979

Pheasant Use Of Wetlands During The Winter And Application Of Landsat Imagery For Assessing Winter Habitat, Signe Sather-Blair

Electronic Theses and Dissertations

This study was designed to investigate 1) vegetative factors influencing ring-necked pheasant (Phasianus colchicus) use of wetlands during the winter, 2) the relationship of land use practices adjacent to wetlands and the use of such wetlands as winter cover by pheasants, and 3) the feasibility of assessing wetlands as pheasant winter habitat through the use of remote sensing data. Fifteen wetlands in Windsor Township, Brookings County, South Dakota, were randomly selected for study to estimate their use by pheasants. Use of cover types was analyzed by using multiple regression, chi-square, and t-tests. Correlation matrices were generated to locate significant relationships. …


Winter Limnological Conditions In A Prairie Pothole And The Application Of Molecular Oxygen, Richard A. Fike Jan 1979

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, …


Nesting Chronology Of South Dakota Ducks, Stephen A. Tessmann Jan 1979

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 Jan 1979

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 …


Design And Evaluation Of A Fisheries Information Storage And Retrieval System (Fisars) For The State Of South Dakota, Richard P. Kramer Jan 1979

Design And Evaluation Of A Fisheries Information Storage And Retrieval System (Fisars) For The State Of South Dakota, Richard P. Kramer

Electronic Theses and Dissertations

Extensive data collected each year from the streams and lakes of South Dakota necessitates a computerized system with which to efficiently utilize the large amount of material. A fisheries related data storage and retrieval system (FISARS) was developed sufficiently to provide cost estimates in creating and maintaining such a system. Detailed descriptions were made to provide information in implementing and utilizing the retrieval system. A survey was made of state fish and game agencies currently operating storage and retrieval systems. This information along with comments provided by the fisheries personnel in the state of South Dakota was used as a …


The Taxonomic Status Of Coyotes From Western South Dakota, Susan E. Lauzon Jan 1979

The Taxonomic Status Of Coyotes From Western South Dakota, Susan E. Lauzon

Electronic Theses and Dissertations

Expansion of the range of the coyote (Canis latrans) has been accompanied by numerous instances of hybridization with domestic dogs (C. familiaris). Recent studies have found a hybrid element in some wild coyote populations. The objectives of this study were to identify the taxonomic status of coyotes in western South Dakota, and to determine the degree of hybridization, if any, that is occurring between coyotes and domestic dogs in the state. Animals were collected from three areas in western South Dakota from September 1976 through January 1978. Skulls of 289 wild canids were cleaned; of these, 167 skulls from adults …


Inbreeding In Rainbow Trout (Salmo Gairdneri): Analysis Of Lethal Temperature Tolerence, Jospeh L. Mangiardi Jan 1979

Inbreeding In Rainbow Trout (Salmo Gairdneri): Analysis Of Lethal Temperature Tolerence, Jospeh L. Mangiardi

Electronic Theses and Dissertations

Inbreeding in rainbow trout (Salmo gairdneri) was evaluated in relation to an altered environment (upper lethal temperature 29 C), at four levels of inbreeding. At each level of inbreeding mean time to death for inbred, female-outbred half-sib, male-outbred half-sib and outbred families were evaluated. In all cases inbreds were less resistant to lethal temperature than were respective outbred families. Analysis of variance 9Snedecor’s F) and multiple range analysis (Tukey’s “w” procedure) provided inference limitations. Inbred fish were 82% less resistant to lethal temperature as comared to the respective outbred family at 50% inbreeding and 19% less resistant at 25% inbreeding. …


On The Water Masses Of Norfolk Canyon, Evon Paul Ruzecki Jan 1979

On The Water Masses Of Norfolk Canyon, Evon Paul Ruzecki

Dissertations, Theses, and Masters Projects

Results from four cruises in the outer continental shelf/slope region of the Middle Atlantic Bight demonstrate the effect of Norfolk Canyon, an east coast submarine canyon, on the exchange of local water masses. Seasonal distributions of water masses and water types around the canyon were determined from closely spaced (2-5 km) hydrographic and XBT stations. Five component water types representing shelf, winter (or cold pool), slope, warm Western North Atlantic and cool Western North Atlantic waters are defined by specific T/S signatures. The percent of each water type necessary to achieve measured T/S values along sections to the north and …


An Evaluation Of Hydrocarbon Extraction Techniques For Tissue, Colleen Gail Becker Jan 1979

An Evaluation Of Hydrocarbon Extraction Techniques For Tissue, Colleen Gail Becker

Dissertations, Theses, and Masters Projects

No abstract provided.


Theory Of Electron Detachment In Collisions Of Negative Ions With Atoms, Ronald David Taylor Jan 1979

Theory Of Electron Detachment In Collisions Of Negative Ions With Atoms, Ronald David Taylor

Dissertations, Theses, and Masters Projects

No abstract provided.


Sufficiency Of A Numerical Downstream Continuation, Charlie H. Cooke Jan 1979

Sufficiency Of A Numerical Downstream Continuation, Charlie H. Cooke

Mathematics & Statistics Faculty Publications

(First paragraph) Customarily one does not impose n-th order boundary conditions on the solution of initial/boundary value problems whose characterizing partial differential equations are also n-th order. However, conjecture that such problems are not well-posed, or that a solution might not exist, is not always justified [l]. Perhaps a physically more natural example is provided by problems of computational fluid dynamics. Here boundary conditions which correctly should be applied at an infinite distance downstream from the region of interest are for computational convenience often applied at a finite location [2]. Results of numerical experimentation on viscous flows governed by …


On The Comparison Of Estimators In A Rectangular Distribution, Danny D. Dyer Jan 1979

On The Comparison Of Estimators In A Rectangular Distribution, Danny D. Dyer

Mathematics Technical Papers

Given two estimators ^1 and ^2 of an unknown parameter ^, Pitman (1937) has suggested calling ^1 a "closer" estimator of ^ than is ^2 if [see pdf for notations] for all values of ^. Using this "closeness" criterion, Johnson (1950) compared several well known estimators of ^ based on a random sample from the rectangular distribution [see pdf for notations], otherwise. In addition, each estimator's mean squared error was given since Pitman's criterion does not take into account the degree of closeness. Unfortunately when two such estimators of ^ are compared, one of them is often preferred under the …


Laf3 Insulators For Mis Structures, A. Sher, W. E. Miller, Y. H. Tsuo, John A. Moriarty, R. K. Crouch, B. A. Seiber Jan 1979

Laf3 Insulators For Mis Structures, A. Sher, W. E. Miller, Y. H. Tsuo, John A. Moriarty, R. K. Crouch, B. A. Seiber

Physics Publications

Thin films of Laf3 deposited on Si or GaAs substrates have been observed to form blocking contacts with very high capacitances. This results in comparatively‐hysteresis‐free and sharpCV (capacitance‐voltage) characteristics for MIS structures. Such structures have been used to study the interface states of GaAs with increased resolution and to construct improved photocapacitive infrared detectors.


Iowa Academy Of Science Leadership Directory And Membership Roster, 1979-80, Iowa Academy Of Science Jan 1979

Iowa Academy Of Science Leadership Directory And Membership Roster, 1979-80, Iowa Academy Of Science

Iowa Academy of Science Documents

Table of Contents:

Board of Directors ... 2
Section Chairs ... 3
Committees ... 6
Past Presidents ... 20
Award of Merit Recipients ... 21
Membership Roster ... 23
Constitution, Article III ... 36


Esculin Hydrolysis In The Enterobacteriaceae, Jane Shigeko Okada Jan 1979

Esculin Hydrolysis In The Enterobacteriaceae, Jane Shigeko Okada

University of the Pacific Theses and Dissertations

Esculin hydrolysis, as mentioned earlier, is now a recognized test in the identification of Group P enterococci. However, its use as a taxonomic tool in differentiating the genera and species of Enterobacteriaceae has not been widely accepted, partly because of the conflicting reports in the literature and partly because of the availability of more reliable tests. Some commercial kits (MS-2, Abbott Laboratories, Dallas, Texas; Micro-Id General Diagnostics, Morris Plains, New Jersey), however, have incorporated it among their battery of biochemical tests.

The nature of the enzyme has not studied for bacteria other than the KES group and E.coli.

Because of …


Gas Exchange, Carbon Balance And Productivity Of Great Basin Shrub-Dominated Communities, M. M. Caldwell, L. B. Camp, R. S. Holthausen, H. Neuber Jan 1979

Gas Exchange, Carbon Balance And Productivity Of Great Basin Shrub-Dominated Communities, M. M. Caldwell, L. B. Camp, R. S. Holthausen, H. Neuber

Memorandum

No abstract provided.


Pine Valley Validation Site Report, C. D. Jorgensen Jan 1979

Pine Valley Validation Site Report, C. D. Jorgensen

Memorandum

No abstract provided.


Hydrologic And Climatologic Data, Southeastern Uinta Basin, Utah And Colorado Water Year 1977, United States Geological Survey Jan 1979

Hydrologic And Climatologic Data, Southeastern Uinta Basin, Utah And Colorado Water Year 1977, United States Geological Survey

All U.S. Government Documents (Utah Regional Depository)

This report contains hydrologic and climatologic data that were collected as a part of an investigation of the southeastern Uinta Basin, Utah and Colorado, by the U.S. Geological Survey. This report contains data mainly for the 1977 water year, which includes the period October 1976-September 1977. Conroy and Fields (1977) reported data collected mainly for water years 1975 and 1976.


Blm Utah Final Initial Wilderness Inventory, United States Bureau Of Land Management Jan 1979

Blm Utah Final Initial Wilderness Inventory, United States Bureau Of Land Management

All U.S. Government Documents (Utah Regional Depository)

In the BLM Wilderness Program, only inventory is completed without consideration of other uses of the land. The wilderness inventory is only for the purpose of determining the presence of wilderness characteristics. It is on that basis that wilderness study areas will be identified. The comparison of wilderness values with other resource values is not part of the wilderness inventory process. It is a valid and necessary part of phase two study. When we enter phase two, the latter part of 1980, it will be imperative for us to consider and resolve whether the orderly development or wise preservation within …


Plasma Polymerization Of Tetrafluoroethylene. I. Inductive Radio Frequency Discharge, H. Yasuda, N. Morosoff, E. S. Brandt, C. N. Reilley Jan 1979

Plasma Polymerization Of Tetrafluoroethylene. I. Inductive Radio Frequency Discharge, H. Yasuda, N. Morosoff, E. S. Brandt, C. N. Reilley

Chemistry Faculty Research & Creative Works

The plasma polymerization of tetrafluoroethylene in an inductively coupled radio frequency glow discharge, using a flow system, was studied. A simple long tube reactor, with the coupling coil placed at the middle of the tube and gas entrance and exit at the respective ends, was used. Deposition rates and the chemical nature of the polymer (as revealed by ESCA spectra and surface energy studies) are obtained as a function of location in the reactor tube with respect to the coupling coil and of applied energy per unit mass of tetrafluoroethylene (W/FM). It was found that a fluorine poor polymer, containing …


Petrology Of Metadiabase Intrusions In The White Rock Quadrangle, Western North Carolina, Dale M. Burton Jan 1979

Petrology Of Metadiabase Intrusions In The White Rock Quadrangle, Western North Carolina, Dale M. Burton

Online Theses and Dissertations

The White Rock quadrangle is located in extreme west­ central North Carolina, at the northwest edge of the Blue Ridge thrust sheet. The geology of the north-central ninth of the quadrangle was mapped during this study. This map area primarily consists of Precambrian granitic gneisses of the Blue Ridge thrust sheet that are separated from metasedimentary rocks of the Wilhite Formation of the Ocoee Series by the Devils Fork fault.

Of the six metadiabase bodies mapped by Keith (1904) in the White Rock quadrangle, only three definitely contain outcrops of metadiabase. These bodies were metamorphosed to the chlorite and biotite …


Nebraska Summary 039: Case International 584, Case International 585, Case International 595 And Case International 3230, Nebraska Tractor Test Lab Jan 1979

Nebraska Summary 039: Case International 584, Case International 585, Case International 595 And Case International 3230, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …


Test 1307: Deutz Dx-160 Diesel 24-Speed, Nebraska Tractor Test Lab Jan 1979

Test 1307: Deutz Dx-160 Diesel 24-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE

General

Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure.

The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …