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Articles 38941 - 38970 of 39772
Full-Text Articles in Physical Sciences and Mathematics
Productivity And Water Stress In Cacti, D. T. Patten, R. A. Nisbet
Productivity And Water Stress In Cacti, D. T. Patten, R. A. Nisbet
Memorandum
No abstract provided.
Phenology And Function Of Sonoran Desert Annuals In Relation To Environmental Changes, D. T. Patten, E. M. Smith
Phenology And Function Of Sonoran Desert Annuals In Relation To Environmental Changes, D. T. Patten, E. M. Smith
Memorandum
No abstract provided.
Gaseous Losses Of Nitrogen From The Soil Of Semi-Arid Regions, T. C. Tucker, R. L. Westernman
Gaseous Losses Of Nitrogen From The Soil Of Semi-Arid Regions, T. C. Tucker, R. L. Westernman
Memorandum
No abstract provided.
Colony Characters Of Termites As Related To Population Density And Habitat, W. L. Nutting, M. I. Haverty, J. P. Lafage
Colony Characters Of Termites As Related To Population Density And Habitat, W. L. Nutting, M. I. Haverty, J. P. Lafage
Memorandum
No abstract provided.
Water Uptake By Plants Under Desert Conditions, H. K. Qashu, D. D. Evans, M. L. Wheeler, Theodore Sammis
Water Uptake By Plants Under Desert Conditions, H. K. Qashu, D. D. Evans, M. L. Wheeler, Theodore Sammis
Memorandum
No abstract provided.
Plant Productivity And Nutrient Interrelationships Of Perennials In The Mohave Desert, Samuel Bamberg, Arthur Wallace, Gale Kleinkopf, Arthur Vollmer
Plant Productivity And Nutrient Interrelationships Of Perennials In The Mohave Desert, Samuel Bamberg, Arthur Wallace, Gale Kleinkopf, Arthur Vollmer
Memorandum
No abstract provided.
Nitrogen Dynamics In Stands Dominated By Some Major Cool Desert Shrubs, J. J. Skujins, N. E. West
Nitrogen Dynamics In Stands Dominated By Some Major Cool Desert Shrubs, J. J. Skujins, N. E. West
Memorandum
No abstract provided.
Pine Valley Validation Site, C.D. Jorgensen, G. Richins
Pine Valley Validation Site, C.D. Jorgensen, G. Richins
Memorandum
No abstract provided.
Terrestrial Models: Introduction And Main Programs, D. W. Goodall, C. Gist
Terrestrial Models: Introduction And Main Programs, D. W. Goodall, C. Gist
Memorandum
No abstract provided.
Gaseous Losses Of Nitrogen From The Soil Of Semi-Arid Regions, T.C. Tucker, R.L. Westerman
Gaseous Losses Of Nitrogen From The Soil Of Semi-Arid Regions, T.C. Tucker, R.L. Westerman
Memorandum
No abstract provided.
Natural Activity Patterns And Thermal Experience In Dipodomys Merriani, W. O. Wirtz, D. V. Brown
Natural Activity Patterns And Thermal Experience In Dipodomys Merriani, W. O. Wirtz, D. V. Brown
Memorandum
No abstract provided.
Progress And Data February 1973, D Tennant
Progress And Data February 1973, D Tennant
Experimental Summaries - Plant Research
This report summarizes progress and data available for the following investigations. Lupin Growth Analysis, Rape Growth Analysis, Fallow Re-assessment, 72M29 Wheat Variety - Root Growth Study,
1973 Time Of Planting And Rate Of Seeding On Lupin Yield, G Walton
1973 Time Of Planting And Rate Of Seeding On Lupin Yield, G Walton
Experimental Summaries - Plant Research
Of the four time of planting trials two definitely showed superiority of earlier seeding (73BA5, 73E6). The two trials in the Southwest (73BR14 and 73MT7) gave highest yields with June sowing compared to May. Three trials (73BR14, 73E6 and 73BA5) appear to have a Variety x Time interaction for plant density, but no definite trend for either Uniharvest or Unicrop although later sowing reduced plant density. Seeding rates in excess of 82 kg/ha gave the highest yields in all trials. The rate of seeding experiments (73BA5 and 73MT7) show that the best crop density for yield (graph) lies between 8 …
1973 Time Of Planting And Rate Of Seeding On Lupin Yield, G Walton
1973 Time Of Planting And Rate Of Seeding On Lupin Yield, G Walton
Experimental Summaries - Plant Research
Comments on results - Of the four time of planting trials two definitely showed superiority of earlier seeding (73BA5, 73E6). The two trials in the Southwest (73BR14 and 73MT7) gave highest yields with June sowing compared to May. Three trials (73BR14, 73E6 and 73BA5) appear to have a Variety x Time interaction for plant density, but no definite trend for either Uniharvest or Unicrop although later sowing reduced plant density. Seeding rates in excess of 82 kg/ha gave the highest yields in all trials. The rate of seeding experiments (73BA5 and 73MT7) show that the best crop density for yield …
Annual Report 1972-73 And Membership Directory, Iowa Academy Of Science
Annual Report 1972-73 And Membership Directory, Iowa Academy Of Science
Iowa Academy of Science Documents
Contents:
Minutes of the Annual Business Meeting --- 4
Report of the Executive Secretary --- 10
Report of the Treasurer --- 21
Report of the Finance Committee --- 23
Report of the Membership Committee --- 25
Report of the Publications Committee --- 26
Report of the Recognition and Awards Committee --- 27
Report of the Social Implications Committee --- 28
Report of the Student Programs Committee --- 32
Report of the Librarian --- 35
Report of the Articulation Committee --- 36
Constitution, Bylaws, and Articles of Incorporation --- 37
Constitution --- 38
Bylaws --- 42
Restated Articles of Incorporation --- …
Consumption, Utilization And Modification Of Nutritional Resources By The Jackrabbit (Lepus Californicus) In The Mohave Desert, V.H. Shoemaker, K.A. Nagy, W.R. Costa
Consumption, Utilization And Modification Of Nutritional Resources By The Jackrabbit (Lepus Californicus) In The Mohave Desert, V.H. Shoemaker, K.A. Nagy, W.R. Costa
Memorandum
No abstract provided.
Evaluation Of Critical Soil Properties Needed To Predict Soil Water Flow Under Desert Conditions, J Letey Jr, G R. Mehuys, L V. Weeks
Evaluation Of Critical Soil Properties Needed To Predict Soil Water Flow Under Desert Conditions, J Letey Jr, G R. Mehuys, L V. Weeks
Memorandum
No abstract provided.
Demographic Studies Of Sagebrush Insects As Functions Of Various Environmental Factors, T. H. Hsiao, R. L. Kirkland
Demographic Studies Of Sagebrush Insects As Functions Of Various Environmental Factors, T. H. Hsiao, R. L. Kirkland
Memorandum
No abstract provided.
Seed Reserves Of Desert Soils, Stuart Childs, David W. Goodall
Seed Reserves Of Desert Soils, Stuart Childs, David W. Goodall
Memorandum
No abstract provided.
Terrestrial Models: Animal Processes (Versions I, Ii), S. Payne
Terrestrial Models: Animal Processes (Versions I, Ii), S. Payne
Memorandum
No abstract provided.
Application Of Remote Sensing Techniques For Analysis Of Desert Biome Validation Studies, P. T. Tueller, Garwin Lorain
Application Of Remote Sensing Techniques For Analysis Of Desert Biome Validation Studies, P. T. Tueller, Garwin Lorain
Memorandum
No abstract provided.
Curlew Valley Validation Site Report, David F. Balph
The Comparative Ecology Of Two Species Of Pipefish (Syngnathidae) In The York River, Virginia, Linda P. Mercer
The Comparative Ecology Of Two Species Of Pipefish (Syngnathidae) In The York River, Virginia, Linda P. Mercer
Dissertations, Theses, and Masters Projects
No abstract provided.
Potassium For Pastures, Walter Jacob Cox
Potassium For Pastures, Walter Jacob Cox
Journal of the Department of Agriculture, Western Australia, Series 4
IVIany pastures in the south-west of Western Australia are deficient in potassium or need regular dressings for maximum growth. This article indicates areas and situations in which potassium might be needed, shows how deficiency is diagnosed and gives recommended rates of application.
1973 Lupin Cultivar Comparison, G Walton
1973 Lupin Cultivar Comparison, G Walton
Experimental Summaries - Plant Research
Comparison of lupin varieties - 73LG6, 73LG7, 73LG78, 73A15, 73BA6, 73C3, 73MT8, 73MT20, 73N3.
A Study Of Organochlorine Insecticides In Freshwater Crayfish -- Analytical Problems And Biomonitoring Survey, Robert C. Vanderjack
A Study Of Organochlorine Insecticides In Freshwater Crayfish -- Analytical Problems And Biomonitoring Survey, Robert C. Vanderjack
Masters Theses
Crayfish were collected from 3 sites on Polecat Creek, Coles County, Illinois in early spring, early summer, and late summer of 1972. Pesticides were extracted from the crayfish tissue in a one step procedure utilizing a Florisil elution column. Analysis was by electron capture gas chromatography. Pesticide residues in the nannogram range were analyzed and background contamination was an important consideration. Sources of background contamination were investigated and teflon stopcocks, Florisil, and residues on “cleaned” glassware were found to be major contamination sources. Distilled water used in flushing glassware should also be considered a potential contamination source.
Aldrin, dieldrin, and …
Distribution Of Foraminiferida In An Estuarine Marsh System, Charles Warren Norton
Distribution Of Foraminiferida In An Estuarine Marsh System, Charles Warren Norton
Dissertations, Theses, and Masters Projects
Foraminiferal faunas in marshes and distributary channels of the James River estuary, Virginia, disclose several facies. The channel facies, primarily Ammobaculites crassus, and A. sp. A, typical of estuaries in Chesapeake Bay and other brackish areas are readily distinguishable freom the march facies. Marshes are divisible laterally by changes in the relative proportions of marsh species such as Miliammina fusca, Ammoastuta salsa, and Haplophragmoides hancocki.Changes along the longitudinal estuarine salinity gradient are discernable in both tidal creeks and marsh. Channels exhibit a longitudinal gradient from a freshwater thecamoebinid facies through an upper and mid-estuarine Ammobaculites facies to a higher salinity …
Progress And Data Available For Investigations, D Tennant
Progress And Data Available For Investigations, D Tennant
Experimental Summaries - Plant Research
This report summarises progress and data available for the following investigations. 1. Fallow Re-assessment. 2. Root Penetration and Distribution in Wheat. 3. Moisture use by Lupins, Rape and Wheat. 4. Variety Investigations in respect of Root Growth. 72M29, 72MO41,
Some Aspects Of Mercury Accumulation By The Purple Shore Crab Hemigrapsus Nudus Dana (Crustacea: Decapoda), Ralph Gene Swanson
Some Aspects Of Mercury Accumulation By The Purple Shore Crab Hemigrapsus Nudus Dana (Crustacea: Decapoda), Ralph Gene Swanson
University of the Pacific Theses and Dissertations
The present study has attempted to investigate some of the more basic questions concerning the toxicity and accumulation of mercury in the purple shore crab, Hemigrapsus nudus. This rocky intertidal denizen is found in abundance along the entire Pacific coast of the United States from Sitka, Alaska, to the Gulf of California where it dominates the mid-tide pool region. Local specimens were collected just north of the Pacific Marine Stations, Dillon Beach, Marin County, California. The animal is hearty and can be kept in a state of good health for long periods of time in the laboratory with minimum care …
Optimum Age, Temperature, And Salinity For Estuarine Stocking Of Juvenile Striped Bass, Morone Saxatilis, Walter Steven Otwell
Optimum Age, Temperature, And Salinity For Estuarine Stocking Of Juvenile Striped Bass, Morone Saxatilis, Walter Steven Otwell
Dissertations, Theses, and Masters Projects
A 3n factorial design to evaluate the effects of an abrupt introduction of striped bass, Morone saxatilis from a closed-system rearing facility into a variety of experimental temperature and salinity combinations has demonstrated a considerable hardiness of juvenile fish. Striped bass less than two months old had over 80.0%, survival during seven days subsequent to acute introduction from an average ambient condition of 21.0 ± 3 C at 0.20 to 4.8% into temperatures of 18 C and 24 C and salinities of 4.0% and 12.0%. Relative growth in these treatments was significantly greater than in the 12 C treatment at …