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Filtering by: Creator Haley, Brian Alexander, 1973- Committee Member Farber, Paul

A taxonomic revision of Astragalus mokiacensis and allied taxa within the Astragalus lentiginosus complex of Section Diphysi

Creator:

Alexander, J. Andrew

Abstract:

North America, with over 400 species of Astragalus (Fabaceae), is one of three major centers of diversity, all of which comprise the majority of the nearly 1750 species of Astragalus worldwide. One of the most diverse species, Astragalus lentiginosus of Section Diphysi, is a polymorphic complex of over 40 varieties,...

Resource Type:

Dissertation

Full Text:

THESIS OF J. Andrew Alexander for the degree of Doctor of Philosophy in Botany and Plant Pathology
Thresholds of uncertainty : radiation and responsibility in the fallout controversy

Creator:

Jolly, J. Christopher

Abstract:

The public controversy over possible health hazards from radioactive fallout from atomic bomb testing began in 1954, shortly after a thermonuclear test by the United States spread fallout world wide. In the dissertation, I address two of the fundamental questions of the fallout controversy: Was there a threshold of radiation...

Resource Type:

Dissertation

Full Text:

a Sustainable Future (New York: St. Martin's Press, 1995), 145-164; Alan Irwin, and Brian Wynne, eds
Dixy Lee Ray, marine biology, and the public understanding of science in the United States (1930-1970)

Creator:

Ellis, Erik

Abstract:

This dissertation focuses on the life of Dixy Lee Ray as it examines important developments in marine biology and biological oceanography during the mid twentieth century. In addition, Ray's key involvement in the public understanding of science movement of the 1950s and 1960s provides a larger social and cultural context...

Resource Type:

Dissertation

Full Text:

Alexander Ross: "The progress of discovery contributes not a little to the enlightenment of mankind; for