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Filtering by: Creator Steinwehr, A. von (Adolph), 1822-1877 Remove constraint Creator: Steinwehr, A. von (Adolph), 1822-1877 Degree Level Doctoral Remove constraint Degree Level: Doctoral

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  • Karl Jordan : a life in systematics

    Creator:
    Johnson, Kristin Renee
    Abstract:
    Karl Jordan (1861-1959) was an extraordinarily productive entomologist who influenced the development of systematics, entomology, and naturalists' theoretical framework as well as their practice. He has been a figure in existing accounts of the naturalist tradition between 1890 and 1940 that have defended the relative contribution of naturalists to the...
    Resource Type:
    Dissertation
    Full Text:
    Jordan: A Life in Systematics Abstract approved: Paul Lawrence Farber Karl Jordan (1861-1959) was an

  • Henry Augustus Rowland and his electromagnetic researches

    Creator:
    Miller, John D. (John David)
    Abstract:
    This analysis concerns the life and scientific work of Henry Augustus Rowland (1848-1901), organizer and the first chairman of the physics department at The Johns Hopkins University in 1876. Special materials used in this research included three pieces of Rowland's experimental apparatus which are extant in the Smithsonian Institution Division...
    Resource Type:
    Dissertation
    Full Text:
    practiced their science as well as their mathe- matics at a level equal to the best of their European

  • Impacts of microbial chemical interactions on marine plankton physiology

    Creator:
    Moore, Eric R.
    Abstract:
    The bioavailability of chemical compounds in the marine environment fundamentally influences the growth and physiology of microorganisms. Organic and inorganic chemicals that are produced by some marine plankton can be consumed by other plankton for energy production, growth, or to initiate essential physiological processes. Cultures of the diatom Thalassiosira pseudonana,...
    Resource Type:
    Dissertation
    Full Text:
    processes. Cultures of the diatom Thalassiosira pseudonana, a model phytoplankton species, and

  • The higher classification of the Hesperiidae (Lepidoptera: Hesperioidea)

    Creator:
    Warren, Andrew D.
    Abstract:
    A comprehensive tribal-level classification for the world's subfamilies of Hesperiidae, the skipper butterflies, is proposed for the first time. Phylogenetic relationships between tribes and subfamilies are inferred using DNA sequence data from three gene regions: 943 bp of cytochrome oxidase subunit I (COI) (in the mitochondrial genome), 739 bp of...
    Resource Type:
    Dissertation
    Full Text:
    Classification of the Hesperiidae (Lepidoptera: Hesperioidea) Abstract approved: Andrew V. Z. Brower A

  • Some factors in the development of northwestern entomology

    Creator:
    Bonnell, Daniel Ernest
    Resource Type:
    Dissertation
    Full Text:
    : - (Major Professor) The writer, as a radu.ate student and as an instructor in entoiio1- ogy, has on many