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Articles 38551 - 38580 of 39776
Full-Text Articles in Physical Sciences and Mathematics
Ecological Study Of The Tidal Segment Of The James River Encompassing Hog Point : 1975 Final Technical Report, R. A. Jordan, R. K. Carpenter, P. A. Goodwin, C. G. Becker, M. S. Ho, G. C. Grant, B. B. Bryan, J. V. Merriner, A. D. Estes
Ecological Study Of The Tidal Segment Of The James River Encompassing Hog Point : 1975 Final Technical Report, R. A. Jordan, R. K. Carpenter, P. A. Goodwin, C. G. Becker, M. S. Ho, G. C. Grant, B. B. Bryan, J. V. Merriner, A. D. Estes
Reports
Volume 1: Technical Reports
- Section 1: River Biota and Phytoplankton Entrainment Studies at the VEPCO Surry Nuclear Power Station
- Section 2: Zooplankton Entrainment at the Surry Nuclear Power Plant, James River, Virginia by G. C. Grant and B. B. Bryan
- Section 3:
- a. Plant Entrainment of Ichthyoplankton at the VEPCO Nuclear Power Station by J. V. Merriner and A. D. Estes
- b: Thermal Plume Entrainment of Ichthyoplankton at the· VEPCO Nuclear Power Station by J. V. Merriner and A. D. Estes
Comparison Of Economic Returns From Grain Crops, H M. Fisher
Comparison Of Economic Returns From Grain Crops, H M. Fisher
Journal of the Department of Agriculture, Western Australia, Series 4
While wheat is still generally the most profitable crop in Western Australia the relative profitability of barley and linseed has risen in the last few years; in southern areas they are likely to be at least as profitable as wheat.
Oats has fallen in profitability relative to wheat, and grain legumes have suffered a marked fall. Yields of these grains have increased with the introduction of new varieties but their price increases have not kept pace with those of wheat and barley. The present relationship of yields and costs indicates that substantial price changes will be needed to change the …
1976 South West Sub Clover Root Rot - White Rust On Rapeseed, M J. Barbetti
1976 South West Sub Clover Root Rot - White Rust On Rapeseed, M J. Barbetti
Experimental Summaries - Plant Research
1. South west sub clover root rot - 1975 cultivation experiments - To investigate the effect of time of cultivation, and nitrogen application, upon the incidence and severity of both tap and lateral root rot of subterranean clover. Localities - Karridale (76BU1), Manjimup (75MA1), and Walpole (75DE1). 2. South West sub clover root rot - 1976 cultivation experiments - Localities - Karridale (75BU11), Walpole (75DE12), and Narrikup (75AL36). 3. White rust on rapeseed - Aims - To examine the role of white rust seed infection in disease aetiology and epidemiology, both in an area containing white rust infected trash and …
1976 Report On Field Trials With Early-Maturing Subterranean Clover Crossbred Strains And Selections, D A. Nicholas
1976 Report On Field Trials With Early-Maturing Subterranean Clover Crossbred Strains And Selections, D A. Nicholas
Experimental Summaries - Plant Research
1. Drilled Trials in Wheatbelt Districts. Trial No. 76GE7, 76LG5, 76ME5, 76ME6, 76M011, 76M012, 76NA6, 76N01, 76TS10. A series of 9 trials to compare the crossbred subterranean clovers Nungarin, 239.2 and 584.1B. with Northam and Geraldton was sown in representative, dry wheatbelt localities in 1976. The trials were sown in randomised blocks with four replications on sites which carried little or no clover. Plot size was 4.22 metres by 40 metres. Superphosphate was applied at rates related to past applications and soil type, but was usually about 200 kg a hectare. Copper, zinc and molybdenum were applied where necessary. Seed …
1976 Pasture Species Investigations - Wheatbelt, N. R. Mckeown
1976 Pasture Species Investigations - Wheatbelt, N. R. Mckeown
Experimental Summaries - Plant Research
Trials in Progress. Only four grazing trials were continued in 1976. The pasture species and management trial at Moora (68M023) required a disproportionate amount of available work time. About 6 man-months were spent in completing the fencing, repairing and modifying the water system and increasing the working efficiency of the experiment. Sheep were reintroduced to the trial early in June. This report summarizes the results from the trials under the following headings:- Seasonal Conditions; Grazing Trials;, Legume Grazing Management Trial, West Moora - 68M023; Comparison of Production from Cyprus Medic and Volunteer Pasture - 71LG17; Tornafield Medic, Serradella and Subterranean …
1976 Summary Of Results - Sowing Systems - Fallow Re-Assessment, D Tennant
1976 Summary Of Results - Sowing Systems - Fallow Re-Assessment, D Tennant
Experimental Summaries - Plant Research
Sowing Systems - Effect on Mineralisation of Soil Nitrogen: Locations: T. Kettle, Kendenup - 76AL32 (Clipper barley), J.& R. Erickson, Bolgart - 76MOJ2 (Gamenya wheat), M. Brown, Yillminning - 76NA41-A (Gamenya wheat), R. Koch, Boddington - 76NA41-B (Gamenya wheat), Esperance Research Station - 76E33 (Gamenya wheat). Sowing systems. Herbicide application. Results: A. 76NA41-B, B. 76AL32, c. 76MO32, D. 76NA41-A, E. 76E33. Fallow Re-assessment - 72M29.
Private Water Supplies, Maine Department Of Human Services
Private Water Supplies, Maine Department Of Human Services
Maine Collection
Private Water Supplies
Department of Human Services, Augusta, Me. (Reprinted 1976).
Contents: Introduction / General Requirements / Types of Private Water Supplies / Procurement of Safe Water / Distribution / Appendix A & B
The Influence Of Environmental Salinity On Hemocyanin Function In The Blue Crab, Callinectes Sapidus, Alan Lawson Weiland
The Influence Of Environmental Salinity On Hemocyanin Function In The Blue Crab, Callinectes Sapidus, Alan Lawson Weiland
Dissertations, Theses, and Masters Projects
No abstract provided.
1976 Long Term Rotation Trials, Ian Rowland
1976 Long Term Rotation Trials, Ian Rowland
Experimental Summaries - Plant Research
Long term rotation trials - W56H, 66M29, 67C13, 67N4, 68E5, 68SG5, 69GE20, 73SG16, Soil fertility - grain lupins - 75TS23.
Oyster Spatfall On Shellstrings In Virginia Rivers: 1975 Annual Summary, Dexter S. Haven, Paul C. Kendall
Oyster Spatfall On Shellstrings In Virginia Rivers: 1975 Annual Summary, Dexter S. Haven, Paul C. Kendall
Reports
The Virginia Institute of Marine Science (VIMS) conducts weekly surveys from June through early October to obtain oyster spatfall information. Spat counts are made from oyster shells strung on wire and · suspended from stakes on public and private beds. The number of spat on shells are counted each week of the spawning season to determine the potential of a particular area for receiving a strike and to predict the most likely period the strikes will occur. Shells .planted just before the period of maximum set have the best chance of getting a good strike.
Fine Scale Circulation Near "Foxtrot" In Hampton Roads, Virginia, Christopher S. Welch, Bruce J. Neilson
Fine Scale Circulation Near "Foxtrot" In Hampton Roads, Virginia, Christopher S. Welch, Bruce J. Neilson
Reports
During 1974 the Virginia Institute of Marine Science conducted a series of oceanographic, water quality and modeling studies for the outfall from the proposed Nansemond Wastewater Treatment Plant (VIMS, 1975). One of these studies included dye releases to determine the dispersion and transport of material discharged to Hampton Roads near Pig Point. These dye releases were made from the munitions loading piers known as "Foxtrot".
The proposed outfall, as given in the Facilities Plan is located roughly one kilometer to the east-south-east of Foxtrot. Tidal circulation in Hampton Roads is quite complex and there was concern that the distribution patterns …
The Biology Of The Sandbar Shark Carcharhinus Plumbeus (Nardo, 1827) In The Lower Chesapeake Bay And Adjacent Waters, Edward Fenton Lawler
The Biology Of The Sandbar Shark Carcharhinus Plumbeus (Nardo, 1827) In The Lower Chesapeake Bay And Adjacent Waters, Edward Fenton Lawler
Dissertations, Theses, and Masters Projects
No abstract provided.
Life History Of The Spotfin Killifish, Fundulus Luciae (Pisces Cyprinodontidae), In Fox Creek Marsh, Virginia, Donald M. Byrne
Life History Of The Spotfin Killifish, Fundulus Luciae (Pisces Cyprinodontidae), In Fox Creek Marsh, Virginia, Donald M. Byrne
Dissertations, Theses, and Masters Projects
No abstract provided.
The Reproductive Cycle Of Mya Arenaria L And Distribution Of Juvenile Clams In The Upper Portion Of The Nearshore Zone Of The York River, Virginia, Jon Lucy
Dissertations, Theses, and Masters Projects
No abstract provided.
Composition Of Arkansas Grapes During Maturation, Cameron Jones, Dominic T.C. Yang, Thomas O. Whitley
Composition Of Arkansas Grapes During Maturation, Cameron Jones, Dominic T.C. Yang, Thomas O. Whitley
Journal of the Arkansas Academy of Science
Changes in organic acid and glucose content during maturation and ripening of grapes grown in Arkansas in 1973 are shown for four French hybrid varieties, S5279, S10878, SV23- 657, and S13053, and for four rotundifolia varieties, Scuppernong, Tarheel, Fry, and Magoon. In all varieties the concentrations of malates and tartrates were highest in the early stages of berry growth after veraison. During ripening the titratable acidity decreased and Balling and pH measurements increased. Although varieties reached maturity on different dates, changes in parameters followed similar curves typical for grapes of the species but occurring over a short period (Johnson and …
The Prairie Naturalist Vol. 7, No.4. December 1975
The Prairie Naturalist Vol. 7, No.4. December 1975
The Prairie Naturalist
COMPARISON OF FLOWERING RECORDS FROM KANSAS AND NORTH DAKOTA ▪ O. A. Stevens
REPAIRED BONE BREAK IN A HOUSE SPARROW ▪ C. L. Cink and T. K. Broschat
A LARGE RACOON LITTER ▪ E. K. Fritzell and J. W. Matthews
CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA –1975 ▪ R. N. Randall
BOOK REVIEW
Autumn Hawk Migrations ▪ P. B. Hofslund
Ultraviolet Radiation Effects On Rotifers, Syed Asim Hussain
Ultraviolet Radiation Effects On Rotifers, Syed Asim Hussain
Masters Theses & Specialist Projects
The purpose of this investigation was to study ultraviolet radiation effects on rotifers. The rotifer studied was Philodina acuticornis odiosa Milne. Isolation cultures were used to grow the rotifers individually in separate U-plate depressions. The source of ultraviolet radiation consisted of four mercury germicidal lamps used in combination to deliver a uniform flux of 315 uW/cm2 over the sample. Five groups of rotifers, one control and four experimental groups of 96 each, were used. The rotifers used were 2-10 hours of age at the beginning of the experiment. The experimental groups were exposed to uv radiation for 3 minutes, …
Studies Of N⁵, N¹⁰-Methylene Tetrahydrofolate Reductase From Porcine Kidney And Mouse L1210-Induced Tumor Tissues, Purification And Interaction With Antifolates, David W. Jayme
Theses and Dissertations
Methylene tetrahydrofolate reductase has been purified 1000-fold from porcine kidney and 400-fold from mouse L1210-induced tumor tissue by classical methods. The enzyme preparations have been demonstrated to be essentially free of contaminating methionine synthetase and serine transhydroxymethylase activity. Studies of the kinetic properties of the kidney and tumor enzymes, with respect to the reverse reaction using N5-methyl tetrahydrofolate as the variable substrate, have indicated Km values of 2.0 and 2.4 x 10-4 M, respectively. Inhibition of this key branch point enzyme in folate metabolism by a number of antimetabolites indicates that several of these antifolate compounds exhibit enzyme inhibition superior …
Beach Erosion, May-June, 1974, Central And South Coast, Nsw, Edward A. Bryant, R. Kidd
Beach Erosion, May-June, 1974, Central And South Coast, Nsw, Edward A. Bryant, R. Kidd
Faculty of Science - Papers (Archive)
Between May 24th and June 18th 1974, three periods of erosive wave conditions dramatically changed the character of many beaches along the central and southern New South Wales Coast. This paper documents and evaluates regional variations in the responses of beaches to these erosional events for selected portions of this coast (Figure 1).
Application Of Satellite Data And Lars' Data Processing Techniques To Mapping Vegetation Of The Dismal Swamp, Jeffrey Allan Messmore
Application Of Satellite Data And Lars' Data Processing Techniques To Mapping Vegetation Of The Dismal Swamp, Jeffrey Allan Messmore
Biological Sciences Theses & Dissertations
This study concerned the feasibility of using digital satellite imagery and automatic data processing (ADP) techniques as a means of mapping swamp forest vegetation. Multispectral scanner data acquired by the Earth Resources Technology Satellite (ERTS-1; renamed LANDSAT-1) was analyzed using ADP techniques developed by Purdue University's Laboratory for Applications of Remote Sensing (LARS). The site for this investigation was the Dismal Swamp, a 210,000 acre swamp forest located south of Suffolk, Va. on the Virginia-North Carolina border. Two basic classification strategies were employed in determining the vegetation mapping capability of ERTS-1 data. The initial classification utilized unsupervised techniques which produced …
The Prairie Naturalist Vol. 7 , Nos. 2 And 3. June-September, 1975
The Prairie Naturalist Vol. 7 , Nos. 2 And 3. June-September, 1975
The Prairie Naturalist
VASCULAR FLORA OF EMMONS COUNTY, NORTH DAKOTA ▪ R. P Williams and W. T. Barker
NOTES
Unusual Nesting Site of Barn Swallows ▪ W. A. Buresh
Summer Tanager in Burleigh County, North Dakota ▪ W. A. Buresh
Additional Record of Summer Tanager in North Dakota ▪ J. F. Cassel
Snowy Owl in McHenry County, North Dakota, in May ▪ W. A. Buresh
Physical And Chemical Properties Of Outdoor Beef Cattle Feedlot Runoff, C. B. Gilbertson, J. R. Ellis, J. A. Nienaber, T. M. Mccalla, T. J. Klopfenstein
Physical And Chemical Properties Of Outdoor Beef Cattle Feedlot Runoff, C. B. Gilbertson, J. R. Ellis, J. A. Nienaber, T. M. Mccalla, T. J. Klopfenstein
Nebraska Agricultural Experiment Station: Historical Research Bulletins
Within the past decade, emphasis has been placed on the quality of our environment. Beef cattle feedlots have been singled out as a significant source of environmental pollution. Environmental protection provided by control facilities requires basic knowledge of the physical and chemical properties of feedlot runoff. This bulletin summarizes studies of physical and chemical properties of beef cattle feedlot runoff completed from August, 1968 through December, 1972.
The Effect Of Recreational Uses On Vegetation And Soil In The Buffalo Campground, Targhee National Forest, Island Park, Idaho, Susan Daines Foster
The Effect Of Recreational Uses On Vegetation And Soil In The Buffalo Campground, Targhee National Forest, Island Park, Idaho, Susan Daines Foster
Theses and Dissertations
The effect of trampling on vegetation and soil, as a result of recreational pressure, was studied in the Buffalo campground of the Targhee National Forest, Idaho. Site deterioration was most evident in the forty-two year old site. The tree stand had matured, but there were few young trees and tree reproduction had been reduced to ten seedlings per acre for Pinus contorta. Only two shrub species were sampled with a combined population of eight individuals per acre. Most of the grass species had been seeded; forbs provided 20% of the ground cover, 13% was bare ground and 71% litter. The …
Genetic Studies Of Cave And Spring Populations Of The Freshwater Amphipod Crustacean Gammarus Minus Say, Steven Wolf Hetrick
Genetic Studies Of Cave And Spring Populations Of The Freshwater Amphipod Crustacean Gammarus Minus Say, Steven Wolf Hetrick
Biological Sciences Theses & Dissertations
The amphipod Gammaru. minus has three morphotypes in its Appalachian range : (1) a spring form with well-developed eyes, (2) an intermediate cave form with slightly reduced eyes, and (3) an extreme cave form with greatly reduced eyes. This study compares the genetic structure of populations in two karst areas and analyzes the genetics of populations of the three morphotypes.
Genetic data were collected from populations in the Ward's Cove, Virginia and Greenbrier Valley, West Virginia karst areas using zone electrophoresis zymograms. One hundred percent of the Ward's Cove populations are polymorphic at both MDH-1 and PEP 1 loci …
Microbenthic Algal Production Of An Intertidal Sandflat In Little Creek Harbor, Virginia Beach, Virginia, Clayton Barry Shedrow
Microbenthic Algal Production Of An Intertidal Sandflat In Little Creek Harbor, Virginia Beach, Virginia, Clayton Barry Shedrow
OES Theses and Dissertations
Estimated annual net microbenthic algal production of an intertidal sandflat on Little Creek Inlet, Virginia Beach, Virginia, was 105 g C/m2. Seasonally, primary production was greatest during the summer and fall periods (38 and 49 g C/m2, respectively). Productivity was found to vary directly with water temperature and standing crop of benthic diatoms, and inversely with incident solar radiation and standing crops of sedimentary chlorophyll 'a' and 'c'. Orthophosphate and nitrate-N appeared to be limiting factors, nitrate-N more so than orthophosphate. Mean annual net photosynthetic efficiency (based upon total light) for the microphytobenthic community was 0.09%. …
Shell Growth In The Scallop Argopecten Irradians. I. Isotope Incorporation With Reference To Diurnal Growth, Alfred P. Wheeler, Patricia Blackwelder, Karl M. Wilbur
Shell Growth In The Scallop Argopecten Irradians. I. Isotope Incorporation With Reference To Diurnal Growth, Alfred P. Wheeler, Patricia Blackwelder, Karl M. Wilbur
Marine & Environmental Sciences Faculty Articles
1. Incorporation of calcium and carbonate into shell has been studied in the scallop Argopecten irradians using 45Ca and 14C-bicarbonate.
2. The incorporation of 45Ca and 14C-carbonate into shell was linear with time after a lag period of 1 to 2 hours. The shell-forming mantle tissue attained a steady state with respect to 45Ca in the sea water medium within 2 hours.
3. The molar ratio of 45Ca to 14C-carbonate deposited in shell was not significantly different from unity during 5 hours.
4. The rate of incorporation of 14C-carbonate into shell was …
Performance Appraisal In Hospital Dietary Departments, Mary C. Law
Performance Appraisal In Hospital Dietary Departments, Mary C. Law
Loma Linda University Electronic Theses, Dissertations & Projects
The specific objectives of this research were to (1) identify the principal characteristics and functions of performance appraisal programs utilized in hospital dietary departments, (2) determine the ten major factors in performance appraisal as indicated by the hospital dietary department directors as well as by dietetic interns and the factors indicated in the review of literature, and (3) develop an evaluation form for performance appraisal of hospital dietary department employees utilizing criteria obtained from (1) and (2).
Three hundred general, short term, nonprofit hospitals were included into the study. Questionnaires were mailed to three hospitals which were classified according to …
Vegetation Development In Relation To Age Of River Stabilization Structures Along A Channelized Segment Of The Missouri River, John Arthur Vaubel
Vegetation Development In Relation To Age Of River Stabilization Structures Along A Channelized Segment Of The Missouri River, John Arthur Vaubel
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
During the summer of 1974, I sampled sites of vegetation representative of successional trends in plant communities along the Missouri River floodplain from Sioux City, Iowa, to Rulo, Nebraska. Five district community types listed from youngest to oldest are as follows: Salix spp. – dominated, Populus deltoides – dominated, Platanus occidentalis-Ulmus rubra – dominated, Tilia americana-Quercus rubra – dominated, and Quercus macrocarpa-Carya ovata – dominated vegetation.
The technique of relating vegetation succession to age of river stabilization structures was found to be useful and offered a quite precise method of developing a timescale …
An Evaluation Of The Fishery Resources Of The Thames River Watershed, Connecticut, Connecticut Department Of Environmental Protection
An Evaluation Of The Fishery Resources Of The Thames River Watershed, Connecticut, Connecticut Department Of Environmental Protection
Storrs Agricultural Experiment Station
No abstract provided.
Respiratory Metabolism And Energy Requirements Of Embryo, Larval And Juvenile Mountain Whitefish, Prosopium Williamsoni, Pokkavil Karunakara Rajagopal
Respiratory Metabolism And Energy Requirements Of Embryo, Larval And Juvenile Mountain Whitefish, Prosopium Williamsoni, Pokkavil Karunakara Rajagopal
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The upper optimum temperature for embryonic development of mountain whitefish is 6 C, and for the post yolk sac stage is 9 to 12 C. The need to know effects on all stages in the life cycle in cases of thermal pollution is demonstrated. Abnormalities caused by thermal pollution in hatched larvae were agape jaws, coloboma or fissure of the eye, monophthalmia or the presence of only one eye, monomicrophthalmia or the presence of one small eye and one case of twinning. High mortalities of eggs occurred at 9 C and higher.
Study of the energy expenditure, by the dry …