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Filtering by: Creator Archila, Kevin A. Remove constraint Creator: Archila, Kevin A. Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.) Peer Reviewed No Remove constraint Peer Reviewed: No

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  • Optimizing the primary forest products supply chain : a multi-objective heuristic approach

    Creator:
    Hamann, Jeff D.
    Abstract:
    This thesis is a collection of four submitted manuscripts that present methods to assist forest ecosystem service managers wanting to develop operational sampling, monitoring, and production plans for a set of specific quantifiable ecosystem services, which are formulated as a series of general multi-objective optimization problems. The problems are solved...
    Resource Type:
    Dissertation
    Full Text:
    Primary Forest Products Supply Chain: A Multi-Objective Heuristic Approach Abstract approved: Kevin

  • Assessment of High Mobility Oxide Thin-Film Transistors

    Creator:
    Stewart, Kevin A.
    Abstract:
    The trend towards higher resolution, faster refresh rate active-matrix liquid-crystal displays (AMLCDs) as well as the emergence of active-matrix organic light-emitting diode (AMOLED) displays is driving the demand for amorphous oxide semiconductor thin-film transistors (AOS TFTs) with higher mobility. A physics-based model for carrier transport in an amorphous semiconductor is...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Kevin A. Stewart for

  • Development and implementation of a transkingdom network analysis pipeline to identify drivers of disease

    Creator:
    Newman, Nolan K.
    Abstract:
    The gut microbiome has been previously implemented in a number of diseases. Of note is its substantial role in metabolic syndrome, which encapsulates a group of conditions that increase the risk of cardiovascular disease, type 2 diabetes, and stroke. Understanding the causal relationships between the gut microbiome and host processes...
    Resource Type:
    Dissertation
    Full Text:
    . Title: Development and Implementation of a Transkingdom Network Analysis Pipeline to Identify Drivers

  • The role of strategic planning in the management of fire-prone western Oregon forests for maximizing terrestrial carbon stocks over a 100-year horizon

    Creator:
    Vanderberg, Michael R.
    Abstract:
    Current frameworks for analyzing forest carbon offset projects in disturbance-prone western forests often fail to address the dynamic nature of carbon pathways through time. They do not account for the probability of loss due to wildfire, which can influence the prediction of carbon storage at the end of a planning...
    Resource Type:
    Dissertation
    Full Text:
    : _____________________________________________________ Kevin D. Boston Current frameworks for analyzing forest carbon offset

  • Elucidating the Origins of Trends and Selectivities of Organic Reactions through Computations and Data Analysis Techniques

    Creator:
    Richardson, H. Camille
    Abstract:
    In this dissertation, a novel method for analyzing computed transition states (TS) for organic reactions is disclosed. It introduces the use of localization-delocalization matrices as parameters in a linear free energy relationship to determine the transition state interactions responsible for differences in energy between the major and minor TS in...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ Paul Ha-Yeon Cheong In this dissertation, a novel method for analyzing

  • Rhenium-catalyzed oxygen-atom transfer reactions : mechanism and applications

    Creator:
    Brown, Eric C.
    Abstract:
    In situ reduction of hydrido-tris-(3,5-dimethylpyrazolyl)borato(trioxo) rhenium(V) with triphenylphosphine or triethylphosphite leads to a reactive rhenium(V) species that catalytically deoxygenates epoxides at 75-105°C. The reaction is stereospecific, except for trans- and cis-butene oxide which formed minor amounts of the opposite isomer. A variety of different functional groups were tolerated and even...
    Resource Type:
    Dissertation
    Full Text:
    triethyiphosphite leads to a reactive rhenium(V) species that catalytically deoxygenates epoxides at 75-105°C. The

  • Examination of airborne discrete-return lidar in prediction and identification of unique forest attributes

    Creator:
    Wing, Brian M.
    Abstract:
    Airborne discrete-return lidar is an active remote sensing technology capable of obtaining accurate, fine-resolution three-dimensional measurements over large areas. Discrete-return lidar data produce three-dimensional object characterizations in the form of point clouds defined by precise x, y and z coordinates. The data also provide intensity values for each point that...
    Resource Type:
    Dissertation
    Full Text:
    : _____________________________________________________________________ Kevin D. Boston Airborne discrete-return lidar is an active remote sensing technology

  • Mechanistic studies on Re(V) mediated C-O bond transformations

    Creator:
    Zhuravlev, Fedor
    Abstract:
    In situ, reduction of Cp*ReO₃ by PPh₃ to form (Cp*ReO)₂(μ-O)₂ allows catalytic deoxygenation of epoxides, however, conproportionation between Reⱽ and Reⱽᴵᴵ species to form clusters of ((Cp*Re)₃(μ-O)₆}²⁺(ReO₄⁻)2 and new compound {(Cp*Re)₃(μ²-O)₃(μ³-O⁾³ReO₃}⁺(ReO₄⁻) leads to removal of rhenium from the catalytic cycle and loss of activity, The epoxide deoxygenation mediated by (Cp*ReO)₂(μ-O)₂...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF Fedor A. Zhuravlev for the degree

  • Active site studies and design of ligands for affinity column separation of 2,5-dihydroxyacetanilide epoxidase (DHAE) I and II

    Creator:
    Allen, Scott E.
    Abstract:
    A series of compounds, 7-8 and 20-25, were tested as competitive inhibitors of 2,5-dihydroxyacetanilide epoxidase I (DHAE I) and DHAE II. A Hammett plot was constructed for each enzyme to determine the effect of electron density on inhibition. DHAE I gave a linear, highly correlated plot (r²=0.91) that signifies the...
    Resource Type:
    Dissertation
    Full Text:
    . Abstract approved Kevin P. Gable A series of compounds, 7-8 and 20-25, were tested as competitive

  • Studies on nitrogen containing secondary metabolites from terrestrial and marine origin

    Creator:
    Barrios Sosa, Ana Carolina
    Abstract:
    PART I. A deuterium exchange analysis of 2,5-dihydroxyacetanilide (5) in the absence and presence of DHAE II was performed to test the nucleophilicity of the substrate in the absence and presence of catalyst. In addition, inhibition studies using 1,4-dihydroxybenzene were performed to determine the role that the N-acetyl side chain...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: David A. Home Kevin P. Gable PART I. A deutenum exchange analysis of 2,5