Monitoring nonpoint source pollution in a large area is often impractical. However, estimating nonpoint pollution through use of empirical models such as the Universal Soil Loss Equation (USLE) provides a basis for identifying problem areas, and setting management priorities. The purpose of this study was to determine the feasibility of using Landsat imagery and existing geographic data to estimate the effects of land use changes on water quality in four North Texas watersheds over a twelve year period.

Bimodal resprometry was conducted on reedfish, Calamoichthys caabricus, acclimated to 25C and 33C. The relative proportion of aerial respiration to the total oxygen consumption increased with acclimation temperature (p<0.05), directly correlated to activity (p<0.01) and was inversely correlated with dissolved oxygen (p<0.01). Reedfish survived aquatic hypoxia (<1 ppm) for days solely using aerial respiration. Not surprisingly, reedfish exhibited no behavioral avoidance of aquatic hypoxia when given access to air.

In this study Geographic Information System (GIS) technology was integrated with remote sensing techniques in order to determine the potential for nonpoint source pollution in the Lake Palestine and Cedar Creek Reservoir watersheds of North Central Texas. The Universal Soil Loss Equation was used to determine soil erosion potential from the watersheds, and export coefficients were used to estimate nutrient loadings into the reservoirs.

Digital satellite remote sensing and Geographic Information Systems (GIS) have been used in conjunction with the Universal Soil Loss Equation (USLE) to model soil erosion potential within watersheds. This study compared erosion estimates calculated by the remote sensing method to results obtained in the field by soil conservationists using conventional methods.

This population study of Quercus stellata in the Texas Cross Timbers evaluates that population by observation and sampling of 220 upland forest stands. The Texas Cross Timbers is divided into the East Cross Timbers (ECT) and the West Cross Timbers (WCT) by the Fort Worth Prairie.

This study explores general stylistic characteristics of a sample of frequently performed works for solo tuba with prepared tape. Preliminary material includes a brief overview of the status of electronic music in the solo tuba repertoire as well as a short survey of the development of electronic music.

The reconstituted steroid transcription unit in Saccharomyces cerevisae was used to screen for steroids in cell extracts prepared from 24 species of plants representing 16 families. Extracts from 7 species representing 5 families were able to activate both estrogen and progesterone receptors expressed in yeast.

Research provides biological and ecological information on Hydrilla Verticillata (L. f.) Royle in Gatun Lake, Panama for an ongoing management program of aquatic weeds in the Panama Canal. Morphological and genetic variation, standing crop and life cycle were determined.

The Prelude and David Copperfield reveal strikingly similar patterns of their heroes' development from boyhood to manhood; the idiosyncrasy of their growth can be found in its retrogressive rather than progressive aspect.

This study is an investigation of the relationships between music and the poetry of Wordsworth, Coleridge, Byron, Shelley, and Keats. Particularly it focuses on the nature of their musical subject matter and musical imagery in order to determine the extent to which they were influenced by aesthetic and philosophical musical theory, generally termed speculative music.

Three major microbial subpopulations from an industrial leachate system were characterized with respect to their bioremediation potential, and particular aspects of a cometabolically active subpopulation were determined.

Four site-specific works produced between 1982 and 1984 in which Hans Haacke utilized the traditional medium of oil on canvas were examined in conjunction with an overview of the underlying and interrelated principles and concepts that have guided his approach to art from 1958-1988.

The National Guard in America began in the Revolutionary War. The Texas units resulted from the earlier concept and emerged in 1835 to resist Mexican oppression. Following achievement of statehood, Texas militiamen served in the Mexican War, the Civil War, and the Spanish-American War. As the twentieth century began, Texans had a long history of service in reserve military organizations in spite of a prevailing attitude of contempt for citizen soldiers held by influential regular army officials.

The purpose of this dissertation is to identify the Stoic influences in the Jacobean drama. Although the Stoic figure and references to Stoicism appear frequently in this drama, there has never been a comprehensive study of the Stoic element in the drama of this period. This study will fill this scholastic gap.

The popular image of the West in the nineteenth and early twentieth centuries incorporates radically opposing images: the West is viewed as a Garden of Eden at times, but it is also frequently seen as violent, a land inimical to man. The region both attracted and repelled. Among those attracted were artists who carried back some of the first images of the land. Thomas Moran (1837-1926) became associated quite early with the West because a pair of his paintings of western canyons was purchased by the United States Government.

This study is a history of the musical activities in the Territory of Oklahoma from 1889 to 1907. Material for this dissertation was gathered from newspapers, books, periodicals, letters, sheet music, concert programs, college catalogues, church records, and photographs. Oklahoma City and Guthrie, the most important cities of the territory, provide the locals for the greater part of the study. These two communities reflect the cultural tastes and activities of the entire territory.