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  • Boron nutrition and fruit set of 'Italian' prune

    Creator:
    Hanson, Eric J.
    Abstract:
    Foliar B sprays have increased fruit set in 'Italian' prune (Prunus domestica L.) by 2 fold in some trials and had no effect in others. This work was conducted to identify reasons for this inconsistent response. Since B levels in flowers are associated with the amount of fruit set, factors...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF Eric J. Hanson for the degree of

  • Bacteriophage T4 ribonucleotide reductase : genes and proteins

    Creator:
    Hanson, Eric Scott
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF Eric Hanson for the degree of

  • Barzen-Hanson KristaChemistryDiscoveryImplicationsC-2 C-3Perfluoroalkyl.pdf

    Creator:
    Barzen-Hanson, Krista A. and Field, Jennifer A.
    Abstract:
    Historically, 3M aqueous film-forming foams (AFFFs) were released at U.S. military and civilian sites to extinguish hydrocarbon-based fuel fires. To date, only C₄–C₁₀ homologues of the perfluoroalkyl sulfonic acids (PFSAs) are documented in 3M AFFFs. Perfluoroethanesulfonate (PFEtS) and perfluoropropanesulfonate (PFPrS), two ultra-short-chain PFSAs, were discovered by liquid chromatography (LC) quadrupole...
    Full Text:
    ₃ Perfluoroalkyl Sulfonates in Aqueous Film-Forming Foams and Groundwater Barzen-Hanson, K. A., & Field, J. A

  • Barzen-Hanson KristaChemistryDiscoveryImplicationsC-2 C-3PerfluoroalkylSupportingInformation.pdf

    Creator:
    Barzen-Hanson, Krista A. and Field, Jennifer A.
    Abstract:
    Historically, 3M aqueous film-forming foams (AFFFs) were released at U.S. military and civilian sites to extinguish hydrocarbon-based fuel fires. To date, only C₄–C₁₀ homologues of the perfluoroalkyl sulfonic acids (PFSAs) are documented in 3M AFFFs. Perfluoroethanesulfonate (PFEtS) and perfluoropropanesulfonate (PFPrS), two ultra-short-chain PFSAs, were discovered by liquid chromatography (LC) quadrupole...
    Full Text:
    (> 99%) 11 and sodium chloride (> 99%) were purchased from Sigma Aldrich (Saint Louis, MO). B&J 12

  • Population dynamics of three early seral herb species in Pacific Northwest forests

    Creator:
    Hanson, D. Eric
    Abstract:
    I investigated the population dynamics of fireweed (Epilobium angustfolium), foxglove (Digitalis purpurea) , and woodland groundsel (Senecio sylvaticus) to understand their colonization, persistence, and extirpation in Pacific Northwest Douglas-fir forests. Factors affecting the species' frequency and abundance in forest communities were evaluated. Their population dynamics were modeled and field experiments...
    Resource Type:
    Dissertation

  • Systematics and host associations of Ormyrus species (Hymenoptera: Chalcidoidea)

    Creator:
    Hanson, Paul E.
    Abstract:
    The genus Ormyrus has a worldwide distribution and comprises about sixty recognized species. The higher taxonomic relationships of the genus are uncertain, as evidenced by its placement in the families Ormyridae, Pteromalidae, or Torymidae. Here, the genus is described in detail and a preliminary catalog of the world species is...
    Resource Type:
    Dissertation
    Full Text:
    (Hymenoptera: Chalcidoidea) AN ABSTRACT OF THE THESIS OF Paul E. Hanson for the degree of Doctor of

  • Factors influencing individual attitudes toward environmental health communications

    Creator:
    Lenz, Holly Hanson
    Abstract:
    The likelihood of achieving an effective environmental health communications program increases with a knowledge of the target audience's attitudes toward their environmental health concerns, source credibility, preferred channels of communication, and desire to participate in environmental issues. With this in mind, the purpose of this study was threefold: 1) to...
    Resource Type:
    Dissertation
    Full Text:
    health communications AN ABSTRACT OF THE DISSERTATION OF Holly Hanson Lenz for the degree of Doctor

  • Image feature detection and matching for biological object recognition

    Creator:
    Deng, Hongli
    Abstract:
    Image feature detection and matching are two critical processes for many computer vision tasks. Currently, intensity-based local interest region detectors and local feature-based matching methods are used widely in computer vision applications. But in some applications, such as biological object recognition tasks, within-class changes in pose, lighting, color, and texture...
    Resource Type:
    Dissertation
    Full Text:
    : Image Feature Detection and Matching for Biological Object Recognition Abstract approved: Eric

  • The effects of versene on dividing sea urchin eggs

    Creator:
    Hanson, James Charles
    Abstract:
    Developing sea urchin eggs (Strongylocentrotus purpuratus), reared at 15° C, were subjected to single 15-minute treatments with disodium versenate in calcium-free sea water, applied at 10-minute intervals, from 4 minutes after insemination to the second cleavage. These versene pulses produced specific degrees of retardation in the mitotic process and delayed...
    Resource Type:
    Dissertation
    Full Text:
    ABSTRACT OF THE THESIS OF JAMES CHARLES HANSON for the DOCTOR OF PHILOSOPHY (Name) (Degree) in ZOOLOGY

  • Sharing the land : a 5th and 6th grade curricular unit for Minto-Brown Island Park, Salem, Oregon

    Creator:
    Hanson, Mette J.
    Abstract:
    The lack of first-hand experience or knowledge about farming in the general population of the United States is a concern among scientists as many current environmental issues are strongly linked to agriculture. Developing agricultural literacy and an appreciation for our dependance on limited resources is important for preparing future generations...
    Resource Type:
    Masters Thesis
    Full Text:
    Minto-Brown Island Park, Salem, Oregon AN ABSTRACT OF THE THESIS OF Mette J. Hanson for the degree of