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  • The Ibis, journal of the British Ornithologists' Union : a pre-synthesis portrait

    Creator:
    Johnson, Kristin Renee
    Abstract:
    In 1959 the British Ornithological journal, The Ibis, published a centenary commemorative volume on the history of ornithology in Britain. Over the previous few decades, the contributors to this volume had helped focus the attention of ornithologists on the methods, priorities, and problems of modem biology, specifically the theory ofevolution...
    Resource Type:
    Masters Thesis
    Full Text:
    ," Journal ofthe History of Biology, 17(1984): 249-270 and William Kimler, "Mimicry: Views ofNaturalists and

  • The determinants of library prices of biology journals : an econometric analysis

    Creator:
    Phillips, Irina
    Abstract:
    Increases in the prices of scholarly journals have exceeded the general rate of inflation for the last decade and more. In the face of this "serials crisis," libraries have found it increasingly difficult to maintain essential journal collections. This thesis investigates the causes of the serials crisis in biology using...
    Resource Type:
    Masters Thesis
    Full Text:
    essential journal collections. This thesis investigates the causes of the serials crisis in biology using

  • Some mathematical models in ecology

    Creator:
    Engstrom-Heg, Verna Louise
    Resource Type:
    Masters Thesis
    Full Text:
    mathematical models of Volterra and Lotka are given by H. G. Andrewartha and L. C. Birch. In considering a

  • Stability and complexity : a reappraisal of the Competitive Exclusion Principle

    Creator:
    Duran, Israel N.
    Abstract:
    Elton (1927) realized that, intuitively at least, nature was complex and stable. And that the last property contributed to the first. This idea was challenged mathematically by Gardner and Ashby (1970) and May (1972), and in the years following various models have attempted to reconcile these opposing views. Unlike previous...
    Resource Type:
    Masters Thesis
    Full Text:
    mathematical incompatibility between complexity and stability of ecosystems that arose following the analysis

  • Modified limiting dilution analysis : a mathematical model with biological interpretation

    Creator:
    Maier, Stefan H.
    Abstract:
    A mathematical model of Limiting Dilution Analysis for two limiting parameters is presented and investigated. Limiting Dilution Analysis is a microbiological cell assay developed for immunological application. In the given case we deal with the interaction between B lymphocytes, macrophage derived factor and T-independent antigens. The state of the art...
    Resource Type:
    Masters Thesis
    Full Text:
    . Magaila A mathematical model of Limiting Dilution Analysis for two limiting parameters is presented and

  • Bang-bang control development of permeability changes in a membrane model

    Creator:
    Melendy, Robert F.
    Abstract:
    The application of systems and control theory to membrane physiology is presented here. Modeling efforts have focused on describing those physiologically realistic mechanisms which govern the regulation of membrane permeability in nerve. The motivation behind identifying such mechanisms lies in understanding the morphology of neural activity on a meaningful and...
    Resource Type:
    Masters Thesis

  • Biology of chlamydospores of Phytophthora ramorum

    Creator:
    Smith, Aaron Lee
    Abstract:
    The chlamydospore is a survival spore produced by 35 of the 75 described species of Phytophthora. Phytophthora ramorum Werres, de Cock & Man in't Veld, the causal agent of Sudden Oak Death (SOD), produces abundant chlamydospores in artificial culture and plant tissue. The chlamydospore is likely the most important survival...
    Resource Type:
    Masters Thesis
    Full Text:
    Pathology presented on April 24, 2007. Title: Biology of Chlamydospores of Phytophthora ramorum

  • Simulations of geckos dry adhesion system

    Creator:
    Hu, Congcong
    Abstract:
    Simulation models were developed to explore the reversible nature of gecko dry adhesion system. The central idea of this model is that even with a small moment imparted on the contact tip, the seta can be easily ad-adhered. It is shown that this contact condition is very sensitive, but can...
    Resource Type:
    Masters Thesis
    Full Text:
    . Andronescu, The Journal of Experimental Biology. 206, 3923-3934 (2003). Effects of loading and size on

  • Nature in chains : the effects of Thomas Jefferson’s rectangular survey on a Pacific Northwest landscape

    Creator:
    Schweickert, Tina K.
    Abstract:
    Understanding the impact of humans on the environment has long been a topic of scholarly interest and debate. As environmental problems mount, accounts of historic ecological conditions and the factors of change become increasingly useful. This study considers competing schools of interpretation about human impacts on ecological landscapes and develops...
    Resource Type:
    Masters Thesis
    Full Text:
    , “Environmental History, Ecology, and Meaning,” The Journal of American History, Vol. 76 (Mar., 1990), 1115. See

  • Empathy, Person and Community: the Foundation of the Sciences in the Phenomenology of Edith Stein

    Creator:
    Lovestone, Lauren R.
    Abstract:
    During the first decades of the twentieth century different attempts were made to unify the diversifying and specializing sciences. One of these attempts manifested as the History of Science. Established in 1913 with the academic journal Isis, its first article written by George Sarton clarified that the field was created...
    Resource Type:
    Masters Thesis
    Full Text:
    History of Science. Established in 1913 with the academic journal Isis, its first article written by