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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
431

ABSORPTION OF NITROGEN-OXIDES AND INFLUENCE ON NITROGEN TRANSFORMATIONS IN SOILS

Eberhardt, Paul Joseph James, 1945- January 1972 (has links)
No description available.
432

THE ATTITUDE OF SELECTED CONTRIBUTORS TOWARD BUDGET AND ALLOCATION METHODS OF THE UNITED COMMUNITY SERVICE

Brook, Benjamin Nathan, 1913- January 1972 (has links)
No description available.
433

BELIEF SYSTEMS IN POLITICAL PARTY STRATARCHIES

Arrington, Theodore S. January 1973 (has links)
No description available.
434

THE RELATIONSHIP OF ORE EXPLORATION TARGETS TO REGIONAL STRUCTURE IN THE LAKE MEAD METALLOGENIC PROVINCE

Wyman, Richard Vaughn, 1927- January 1974 (has links)
No description available.
435

CHARACTERISTICS OF PONDEROSA PINE STANDS SELECTED BY THE ABERT'S SQUIRREL FOR COVER

Patton, David R. January 1974 (has links)
No description available.
436

THE ARCHITECTURE OF THE CASA GRANDE AND ITS INTERPRETATION

Wilcox, David R., 1944- January 1977 (has links)
No description available.
437

THE 45-15 YEAR-ROUND SCHOOL: AN EVALUATION OF FIRST-YEAR ALGEBRA ACHIEVEMENT OF SELECTED NINTH-GRADE STUDENTS

Matty, Edward Joseph, 1925- January 1978 (has links)
No description available.
438

HOUSEHOLD FINANCIAL MANAGEMENT EDUCATION--PROGRAM DIRECTIONS FOR YUMA COUNTY

Steinfelt, Victoria Elizabeth January 1983 (has links)
No description available.
439

Fire and Flood in a Canyon Woodland: The Effects of Floods and Debris Flows on the Past Fire Regime of Rhyolite Canyon, Chiricahua National Monument: Final Report

Swetnam, Thomas, Baisan, Christopher, Caprio, Tony, McCord, Alex, Brown, Peter January 1990 (has links)
Prior research in the Rhyolite Canyon area of Chiricahua National Monument (Swetnam et. al. 1989) revealed an anomalous 50 year fire-free interval between 1901 and 1851. Disruption of fire spread resulting from flooding and mass soil movement (debris flows) were postulated as potential causes of this long interval. The present study gathered additional evidence of fire and floods in the canyon system. Sampling of flood-scarred trees along stream channels successfully identified several flood events in Rhyolite canyon. Pulses of pine regeneration on debris flow deposits were associated with one of these events. However, no definitive linkage of flood events with changes in fire regime was established. Analysis of new fire scar samples combined with previous results indicated that the area affected by the change in fire regime includes the uplands between Jesse James Canyon and Rhyolite drainage. Source areas for fires prior to 1900 were not identified within the study area indicating that ignitions outside the present monument boundaries may have been important in the past. Evidence from the maximum ages of overstory conifers within Rhyolite Canyon suggests the occurrence of a major disturbance within this drainage prior to 1600.
440

Develop Water Management Methods for Watersheds Subject to Intensive Development: Partial Project Completion Report

Davis, D., Robotham, H. B. 09 1900 (has links)
OWRT Project No. A-069-ARIZ / Agreement No. 14-34-0001-6003 / Project dates: July 1975-September 1977 / Acknowledgement: The work upon which this report is based was supported by funds provided by the United States Department of the Interior, Office of Water Research and Technology, as authorized under the Water Resources Research Act of 1978. / A water resources management study for the Sonoita Creek watershed was conducted in order to develop a usable water resources management plan for the area and to resolve possible conflict among the different water demands in the basin. These water demands are classified as municipal and domestic, recreation and agriculture. Six potential water resources management alternatives are developed and compared using the standardized cost -effectiveness methodology. This approach enables thorough and efficient comparison of the alternatives with respect to both quantifiable and unquantifiable criteria. Each alternative considers developing either the ground water or the surface water resources of the watershed. Also, each alternative considers some method of treated sewage effluent disposal. The algorithm ELECTRE I is used to select the most suitable plan for the watershed. This procedure is used because of its simplicity and its proven usefulness in analyzing multiobjective decision problems. With the available information on the ground and surface water resources of the watershed, the choice of alternatives is reduced to one, namely, construction of a small reservoir at Redrock Canyon. Evaporation control measures are needed in order to reduce evaporation losses from the reservoir. The reservoir would serve as a supplemental source of water for the town of Patagonia and for the Sonoita Creek Sanctuary. v

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