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Filtering by: Creator Collins, Ron L. Remove constraint Creator: Collins, Ron L. Degree Level Doctoral Remove constraint Degree Level: Doctoral

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  • Science inquiry as knowledge transformation : investigating metacognitive and self-regulation strategies to assist students in writing about scientific inquiry tasks

    Creator:
    Collins, Timothy A.
    Abstract:
    Science inquiry is central to the science education reform efforts that began in the early 1990's. It is both a topic of instruction and a process to be experienced. Student engagement in the process of scientific inquiry was the focus of this study. The process of scientific inquiry can be...
    Resource Type:
    Dissertation
    Full Text:
    ABSTRACT OF THE DISSERTATION OF Timothy A. Collins for the degree of Doctor of Philosophy in Science

  • Nonlinear control applied to power systems

    Creator:
    Vedam, Rajkumar
    Abstract:
    When large disturbances occur in interconnected power systems, there exists the danger that the power system states may leave an associated region of stability, if timely corrective action is not taken. Open-loop remedial control actions such as field-forcing, line-tripping, switching of series-capacitors, energizing braking resistors, etc., are helpful in reducing...
    Resource Type:
    Dissertation
    Full Text:
    approved: Professor Ron Mohler When large disturbances occur in interconnected power systems, there

  • Teacher argumentation in the secondary science classroom : images of two modes of scientific inquiry

    Creator:
    Gray, Ron E.
    Abstract:
    The purpose of this exploratory study was to examine scientific arguments constructed by secondary science teachers during instruction. The analysis focused on how arguments constructed by teachers differed based on the mode of inquiry underlying the topic. Specifically, how did the structure and content of arguments differ between experimentally and...
    Resource Type:
    Dissertation
    Full Text:
    Microsoft Word - Prepages - Ron Gray _SMED_.doc AN ABSTRACT

  • You are What, When, Where, and How you Eat : Mercury in Avian Food Webs across Multiple Spatial Scales

    Creator:
    Jackson, Allyson K.
    Abstract:
    Human alterations of landscapes take many forms, one of which is anthropogenic pollution. Mercury (Hg) is a complex contaminant because its uptake into the food web is not driven entirely by loading to the system; methylation is necessary to make Hg bioavailable and toxic to fish and wildlife. Because methylation...
    Resource Type:
    Dissertation
    Full Text:
    Multiple Spatial Scales. Abstract approved: Collin Eagles-Smith Human alterations

  • An evaluation of a change effort

    Creator:
    Carlson, Ron
    Abstract:
    School districts across the nation are engaged in an ongoing attempt to bring about change. Educational researchers strive to initiate change in the classroom with students as well as the teachers of these students. The evaluation of a change effort is a key element in any implementation model; as the...
    Resource Type:
    Dissertation
    Full Text:
    THESIS OF Ron Carlson for the degree of Doctor of Education in Curriculum and Instruction presented on

  • Thermodynamics of non-dilute saline solutions in variably saturated porous media

    Creator:
    Burns, Erick R.
    Abstract:
    Non-dilute salt strength solutions occur in many near surface geologic environments. In order to better understand the occurrence and movement of the water and salt, mathematical models for this non-ideal fluid need to be developed. Initial boundary value problems may then be solved to predict behavior for comparison with observations....
    Resource Type:
    Dissertation
    Full Text:
    research core of my committee is Professors John Selker, Maria Dragila, and Ron Guenther. Each has

  • Using soil data to enhance modeling of forest responses to climate change

    Creator:
    Peterman, Wendy L.
    Abstract:
    The over-arching theme of this work is that soil data affect the performance and realism of vegetation models with particular focus on their ability to predict or explain disturbances such as fire or disease. We tested the sensitivity of the Excel version of the 3-PG model to soil properties and...
    Resource Type:
    Dissertation
    Full Text:
    Wendy L. Peterman June 4, 2014 All Rights Reserved Using Soil Data to Enhance Modeling

  • Regional gradient analysis and spatial pattern of woody plant communities in Oregon

    Creator:
    Ohmann, Janet L.
    Abstract:
    Knowledge of regional-scale patterns of plant community structure and controlling factors is largely qualitative and based on numerous local studies. Data from a subsample of 10,000 field plots were used to quantify and map compositional gradients of woody plant communities across Oregon forests. Canonical correspondence analyses explained 9-14% of the...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF Janet L. Ohmann for the

  • Antarctic intermediate water in the South Pacific Ocean

    Creator:
    Johnson, Ron (Ronald E.)
    Abstract:
    The distribution of Antarctic Intermediate Water in the South Pacific has been examined using a model of horizontal advection, along the Sigma-t surface 27.10, with three point vertical mixing. The core of the Antarctic Intermediate Water mass was traced from the Antarctic Convergence northward. The charts used to describe the...
    Resource Type:
    Dissertation
    Full Text:
    Distribution 68 Page L)YNAMIC CALCJLAT1ONS 72 Geostrophic Velocities 72 Level of No Motion 72 Dynamic

  • Drop size distributions produced by turbulent pipe flow of immiscible liquids

    Creator:
    Collins, Stanley Browning
    Abstract:
    Drop size distributions produced by the turbulent pipe flow of dispersions of immiscible liquids were measured photographically. A mathematical model was developed which predicted both the shape of the experimentally observed distributions and the experimentally observed kinetics of the breakup process. The mutually saturated water and organic phases were pumped...
    Resource Type:
    Dissertation
    Full Text:
    immiscible liquids AN ABSTRACT OF THE THESIS OF STANLEY BROWNING COLLINS for the (Name) in Chemical