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Filtering by: Creator Reiff, Steven D. Remove constraint Creator: Reiff, Steven D. File Format application/pdf Remove constraint File Format: application/pdf License All rights reserved Remove constraint License: All rights reserved

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  • Reproductive isolation and interspecific hybridization in the threatened species, Sidalcea nelsoniana

    Creator:
    Gisler, Steven D.
    Abstract:
    In addition to its longstanding recognition as an influential evolutionary process, interspecific hybridization is increasingly regarded as a potential threat to the genetic integrity and survival of rare plant species, manifested through gamete wasting, increased pest and disease pressures, outbreeding depression, competitive exclusion, and genetic assimilation. Alternatively, hybridization has also...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Steven D. Gisler for the

  • Tree species-soils relationships in old-growth forests of the Oregon Coast Range

    Creator:
    Cross, Alison
    Abstract:
    Tree species directly and indirectly affect soil nutrient cycles. I sought to characterize soils and foliage associated with four common canopy tree species (Douglas-fir, western hemlock, western redcedar, and bigleaf maple) in mixed-species old-growth forests of the Oregon Coast Range and to determine whether and how soils differ among the...
    Resource Type:
    Masters Thesis
    Full Text:
    : __________________________________________________________________ Steven S. Perakis Tree species directly and indirectly affect soil nutrient cycles. I

  • Nitrogen dynamics across silvicultural canopy gaps in young forests of western Oregon

    Creator:
    Thiel, Aaron L.
    Abstract:
    Silvicultural canopy gaps are emerging as an alternative management tool to accelerate development of complex forest structure in young, even-aged forests of the Pacific Northwest. I investigated patterns of nitrogen (N) availability along transects through 0.1 and 0.4 ha silvicultural gaps in three 50-70 year old Douglas-fir forests of western...
    Resource Type:
    Masters Thesis
    Full Text:
    Steven S. Perakis Silvicultural canopy gaps are emerging as an alternative management tool to

  • Atmospheric boundary layer coupling to midlatitude mesoscale sea surface temperature anomalies

    Creator:
    Thum, Nicolai
    Abstract:
    This thesis examines the mechanisms that couple the monthly-averaged atmospheric boundary layer (ABL) to open-ocean sea surface temperature (SST) perturbations on scales of 50-500 km. The observed positive correlation between surface wind speed anomalies and SST anomalies is successfully simulated using the Weather Research and Forecasting (WRF) model. In numerical...
    Resource Type:
    Dissertation
    Full Text:
    : Steven K. Esbensen This thesis examines the mechanisms that couple the monthly-averaged atmospheric

  • Developing a basis for characterizing precision of estimates produced from non-probability samples on continuous domains

    Creator:
    Cooper, Cynthia
    Abstract:
    This research addresses sample process variance estimation on continuous domains and for non-probability samples in particular. The motivation for the research is a scenario in which a program has collected non-probability samples for which there is interest in characterizing how much an extrapolation to the domain would vary given similarly...
    Resource Type:
    Dissertation
    Full Text:
    response at location indicated by the 2- or 3-D vector "s" defined on the continuous 2- or 3-D domain. A

  • Public investment policy and industry incentives in life science research

    Creator:
    Wang, Chenggang
    Abstract:
    The biorevolution in the 1970’s greatly stimulated investment in life-science research. The present dissertation is aimed at evaluating the impact of US public investment on industrial investment in life-science research. The focus is on three major life-science fields: biology, medicine, and agriculture. A dynamic model of industrial R&D investment is...
    Resource Type:
    Dissertation
    Full Text:
    Steven T. Buccola Yin Xia The biorevolution in the 1970’s greatly

  • Non-linear nitrogen dynamics and calcium depletion along a temperate forest soil nitrogen gradient

    Creator:
    Sinkhorn, Emily R.
    Abstract:
    Understanding how N availability influences base cation stores is critical for long-term ecosystem sustainability. Indices of nitrogen (N) availability and the distribution of nutrients in plant biomass, soil, and soil water were examined across ten young, unpolluted Douglas-fir (Pseudotsuga menziesii) stands in the Oregon Coast Range spanning a three-fold soil...
    Resource Type:
    Masters Thesis
    Full Text:
    : __________________________________________________________________ Steven S. Perakis Understanding how N availability influences base cation stores is

  • Four centuries of soil carbon and nitrogen change after severe fire in a Western Cascades forest landscape

    Creator:
    Giesen, Thomas William
    Abstract:
    Fire is a major disturbance process in many forests. Long-term studies of the biogeochemical effects of fires, especially on soils, are very rare. Consequently, long-term effects of fire on soils are often hypothesized from short-term effects. In a chronosequence study, I studied 24 western Cascades (Oregon) forest stands thought to...
    Resource Type:
    Masters Thesis
    Full Text:
    Severe Fire in a Western Cascades Forest Landscape Abstract approved: Steven S. Perakis

  • Advanced microarchitecture and circuit design techniques for on-chip memories in CMOS technology

    Creator:
    Hsu, Steven K.
    Abstract:
    In modern on-chip memories, an increasing demand for higher performance, lower power, reduced area, and improved robustness creates a rising need for advanced microarchitecture and circuit design techniques. Particularly in large-signal multi-ported register files, these advanced design techniques include: (i) multi-banked arrays, (ii) multi-frequency arrays, (iii) multi-bit width gating, (iv)...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Steven K

  • A domain-specific embedded language for probabilistic programming

    Creator:
    Kollmansberger, Steven
    Abstract:
    Functional programming is concerned with referential transparency, that is, given a certain function and its parameter, that the result will always be the same. However, it seems that this is violated in applications involving uncertainty, such as rolling a dice. This thesis defines the background of probabilistic programming and domain-specific...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Steven Kollmansberger for the degree of