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Articles 50881 - 50910 of 52387

Full-Text Articles in Physical Sciences and Mathematics

Reproduction And Survivorship Of The Lizard, Uta Stansburiana, And The Effects Of Winter Rainfall, Density And Predation On These Processes, F. B. Turner, P. A. Medica, D. D. Smith Jan 1973

Reproduction And Survivorship Of The Lizard, Uta Stansburiana, And The Effects Of Winter Rainfall, Density And Predation On These Processes, F. B. Turner, P. A. Medica, D. D. Smith

Memorandum

No abstract provided.


Role Of Orthoporus Ornatus Millipedes In A Desert Ecosystem, C. S. Crawford, R. C. Wooten Jr. Jan 1973

Role Of Orthoporus Ornatus Millipedes In A Desert Ecosystem, C. S. Crawford, R. C. Wooten Jr.

Memorandum

No abstract provided.


Gas Exchange And Productivity For Opuntia Spp., Irwin P. Ting, H. B. Johnson, T. A. Yonkers, S. R. Szarek Jan 1973

Gas Exchange And Productivity For Opuntia Spp., Irwin P. Ting, H. B. Johnson, T. A. Yonkers, S. R. Szarek

Memorandum

No abstract provided.


Population Structure, Foraging Behavior And Daily Movements Of Certain Sonoran Desert Birds, S. M. Russell, P. J. Gould, E. L. Smith Jan 1973

Population Structure, Foraging Behavior And Daily Movements Of Certain Sonoran Desert Birds, S. M. Russell, P. J. Gould, E. L. Smith

Memorandum

No abstract provided.


Prediction Of Plant-, Soil- And Air-Temperature On A Microscale In The Desert, Inge Dirmhirn, Frank Eaton Jan 1973

Prediction Of Plant-, Soil- And Air-Temperature On A Microscale In The Desert, Inge Dirmhirn, Frank Eaton

Memorandum

No abstract provided.


Terrestrial Models: Soil Processes (Versions I, Ii, Iii), J. Radford Jan 1973

Terrestrial Models: Soil Processes (Versions I, Ii, Iii), J. Radford

Memorandum

No abstract provided.


Effect Of Density On The Population Dynamics Of Perognathus Formosus And Its Relationships Within A Desert Ecosystem, R. M. Chew, F. B. Turner, Peter August, Bernardo Maza, James Nelson Jan 1973

Effect Of Density On The Population Dynamics Of Perognathus Formosus And Its Relationships Within A Desert Ecosystem, R. M. Chew, F. B. Turner, Peter August, Bernardo Maza, James Nelson

Memorandum

No abstract provided.


The Role Of Algae In Crust Formation And Nitrogen Cycling In Desert Soils, R I. Lynn, R E. Cameron Jan 1973

The Role Of Algae In Crust Formation And Nitrogen Cycling In Desert Soils, R I. Lynn, R E. Cameron

Memorandum

No abstract provided.


Rock Valley Validation Site Report, Frederick B. Turner Jan 1973

Rock Valley Validation Site Report, Frederick B. Turner

Memorandum

No abstract provided.


Demography And Bioenergetics Of Herbivorous Ants In A Desert Ecosystem As Functions Of Vegetation Soil Type And Weather Variables, W. G. Whitford Jan 1973

Demography And Bioenergetics Of Herbivorous Ants In A Desert Ecosystem As Functions Of Vegetation Soil Type And Weather Variables, W. G. Whitford

Memorandum

No abstract provided.


Shoot Growth And Litter Fall Processes As They Bear On Primary Production Of Some Cool Desert Shrubs, N. E. West, Marcee Fareed Jan 1973

Shoot Growth And Litter Fall Processes As They Bear On Primary Production Of Some Cool Desert Shrubs, N. E. West, Marcee Fareed

Memorandum

No abstract provided.


Jornada Validation Site Report, Walter G. Whitford Jan 1973

Jornada Validation Site Report, Walter G. Whitford

Memorandum

No abstract provided.


Role Of Annual Grasses And Shrubs In Nutrient Cycling Of Great Basin Communites, L. G. Kline, C. M. Mckell Jan 1973

Role Of Annual Grasses And Shrubs In Nutrient Cycling Of Great Basin Communites, L. G. Kline, C. M. Mckell

Memorandum

No abstract provided.


Density And Dietary Habits Of Pocket Gophers (Thomomy Bottae Centralie) In Rock Valley, R. E. Dingman, James Bandoli Jan 1973

Density And Dietary Habits Of Pocket Gophers (Thomomy Bottae Centralie) In Rock Valley, R. E. Dingman, James Bandoli

Memorandum

No abstract provided.


Aquatic Models, Wayne Minshall Jan 1973

Aquatic Models, Wayne Minshall

Memorandum

No abstract provided.


Productivity And Water Stress In Cacti, D. T. Patten, R. A. Nisbet Jan 1973

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 Jan 1973

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 Jan 1973

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 Jan 1973

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 Jan 1973

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 Jan 1973

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 Jan 1973

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 Jan 1973

Pine Valley Validation Site, C.D. Jorgensen, G. Richins

Memorandum

No abstract provided.


Terrestrial Models: Introduction And Main Programs, D. W. Goodall, C. Gist Jan 1973

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 Jan 1973

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 Jan 1973

Natural Activity Patterns And Thermal Experience In Dipodomys Merriani, W. O. Wirtz, D. V. Brown

Memorandum

No abstract provided.


Removal Of Color From Surface Water In Central Florida, Joseph R. Wanielista Jan 1973

Removal Of Color From Surface Water In Central Florida, Joseph R. Wanielista

Retrospective Theses and Dissertations

The USPHS limits color in water to 15 color units. However, it is desirable to remove all the color. Color in surface water is mainly due to humic substances and was found in concentrations varying up to 450 color units. Removal of color by coagulation and flocculation has been practiced over the years. The mechanisms involved have not yet been fully understood. During the course of this investigation, a literature survey, studying the nature of color, mechanisms or color removal, and optimum color removal conditions, has been conducted. Samples have been obtained from surface waters in Central Florida; namely Big …


Mathematical Modeling Of Stream Storage Potential, Hugh M. Jeffus Jan 1973

Mathematical Modeling Of Stream Storage Potential, Hugh M. Jeffus

Technical Reports

Streamflow data from unregulated streams in Arkansas were processed through Moran’s Model for a dam. The process involved calculating a cumulative gamma distribution for each stream as the streamflow values were incremented in units of 0.1 cubic feet per second per square mile of drainage area. This gamma distribution was then used as input for Moran’s Model. The output from Moran's Model includes the probability of the reservoir having zero contents as the size of the reservoir is decreased. The logarithm of the probability of zero contents, 1n PO, versus reservoir size, K, is a straight line of the form …


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 Jan 1973

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 Jan 1973

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.