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Filtering by: Contributor Martz, Tracy Non-Academic Affiliation Oregon State University. Graduate School

An Ecoregion-Based Reference Condition and Classification Scheme for Determining Nutrient Criteria in Oregon Lakes

Creator:

Brenner, Jacqueline M.

Abstract:

The anthropogenic introduction of nutrients to water bodies has been shown to alter the structure and function of natural aquatic ecosystems, yet national EPA lake and reservoir nutrient criteria remain too broad for effective regional water quality management. This study uses a reference site approach to propose numeric nutrient criteria...

Resource Type:

Masters Thesis

Full Text:

acknowledge Dr. Tracy Arraz and Mark Meyers for their GIS support, and Jeannie Sifneos for statistical
Education of American research astronomers, 1876-1941

Creator:

Hall, Robert Dale, 1947-

Abstract:

The education (particularly graduate education) of Americans who were active in astronomical research between 1876 and 1941 is assessed for its effectiveness in preparing the astronomers for careers in research. This period contains three dynamic changes: the growth of American astronomy in becoming the world's leading community of astronomers, the...

Resource Type:

Dissertation