Search Constraints

Start Over
Filtering by: Alternative title ssim Extension bulletin 141 Remove constraint Alternative title ssim: Extension bulletin 141 File Format application/pdf Remove constraint File Format: application/pdf Resource Type Dissertation Remove constraint Resource Type: Dissertation

Search Results

  • Extension and volcanism : tectonic development of the northwestern margin of the Basin and Range Province in southern Oregon

    Creator:
    Scarberry, Kaleb C.
    Abstract:
    The northwestern corner of the Basin and Range Province (NWBR) lies in southeast Oregon where extensive Late Miocene, mafic to bimodal basalt-rhyolite volcanism and extensional faults dominate a stark and arid landscape. Near Lake Abert, the Late Miocene volcanic section abuts Early Miocene, dominantly intermediate composition volcanoes at the Coleman...
    Resource Type:
    Dissertation
    Full Text:
    formation of NW-striking fault systems. Extension and Volcanism: Tectonic Development of the

  • Total synthesis of phorboxazole A

    Creator:
    Lee, Tae Hee
    Abstract:
    The total synthesis of a highly potent cytotoxic marine natural product, phorboxazole A, is described. Both a palladium(II)-mediated and a palladium(II)-catalyzed intramolecular alkoxycarbonylation were used as key steps for the preparation of the two cis-2,6-disubstituted tetrahydropyran rings (C22-C26 and C11-C15) of phorboxazole A. The synthesis used a convergent approach involving...
    Resource Type:
    Dissertation
    Full Text:
    (129). Assembly of two subunits, 130 and 131, employed Evans coupling protocol and provided 141 in

  • Tidal influence on downstream fining in gravel-bed rivers

    Creator:
    Coles, Derron Rafiq
    Abstract:
    This research examines the downstream fining phenomenon as it operates in coastal gravel-bed rivers of Oregon. Downstream fining is a change in bed composition toward smaller sediment sizes in the downstream direction. Changes in stream flow discharge and channel slope affect the rate of bed-load transport, thereby altering the downstream...
    Resource Type:
    Dissertation
    Full Text:
    sidebars along the four additional rivers. In total, 21 sampling locations with 141 individual sampling

  • Quantities of prostaglandins in whole and extended bovine semen and their potential effect on fertility following insemination

    Creator:
    Jaeger, John Ralph
    Abstract:
    Our objectives were to determine 1) the concentration of prostaglandin F2α (PGF2α) in whole and extended bovine semen, 2) if concentrations of prostaglandins in extended bovine semen are correlated to fertility, and 3) if PGF2α administered at the time of artificial insemination would improve conception rate. Concentration of PGF2α tended...
    Resource Type:
    Dissertation
    Full Text:
    dilution rates. Prostaglandin F2α in sub-samples, collected during extension, decreased at higher

  • Automatic program generation for scientific computing

    Creator:
    Fu, Zhe
    Abstract:
    The code reuse problem is a common software engineering problem in scientific computing. As a prevailing programming language in many scientific fields, Fortran does not provide support to address this problem. One particular reason is that Fortran lacks the support for generic programming. By applying program-generation techniques, we developed two...
    Resource Type:
    Dissertation
    Full Text:
    described Fortran extension has also been successfully employed implementing the generic inverse ocean

  • Energetics and mechanics of swing phase during terrestrial locomotion

    Creator:
    Nelson, Frank E.
    Abstract:
    Previous attempts to understand the factors affecting the energetic cost of locomotion have found a direct link between the energetic cost and the mechanical work done during periods when the limb is in contact with the ground. However, when the limb is not in contact with the ground during the...
    Resource Type:
    Dissertation
    Full Text:
    an extension moment about the intertarsal joint of turkeys during swing. The only muscle providing

  • Development of acoustic emissions testing procedures applicable to conventionally reinforced concrete deck girder bridges subjected to diagonal tension cracking

    Creator:
    Lovejoy, Steven C.
    Abstract:
    A need exists to develop a non-destructive testing technique that can identify the formation and propagation of diagonal tension cracks in conventionally steel reinforced concrete deck girder (RCDG) highway bridges in the State of Oregon. Such a technique could be included into a structural health monitoring (SHM) system installed on...
    Resource Type:
    Dissertation
    Full Text:
    means of identifying the formation and extension of diagonal tension cracks as they developed

  • Distribution of Euphausiacea and Copepoda off Oregon in relation to oceanographic conditions

    Creator:
    Hebard, James Frank
    Abstract:
    Fifty-two one-meter plankton net samples from four stations off Newport, Oregon, were examined for composition and abundance of euphausiids and copepods. They provided data on dominance, species associations and environmental relationships. The euphausiid-copepod population off Oregon is composed of 12 numerically dominant species. These species occurred in most of the...
    Resource Type:
    Dissertation
    Full Text:
    with an occa- sional shoreward extension in distribution during the winter. Two methods of

  • A decision framework for the implementation of appropriate logging practices in developing countries : case study -- Ethiopia

    Creator:
    Spong, Ben
    Abstract:
    In many areas of the developing world, the continued overexploiting forest resources has the potential to have significant detrimental impacts be placed on sustainable forest management (SFM) can help communities and organizations responsibly manage and utilize the remaining forests over the long term. Ethiopia’s forest lands provide tangible benefits from...
    Resource Type:
    Dissertation
    Full Text:
    and equipment, research, social programs, extension and training, and political change

  • Sustainable power management of microelectronics

    Creator:
    Muhtaroglu, Ali
    Abstract:
    The integration of renewable energy sources and the associated power electronics to notebook power and thermal management systems was investigated in this work. Both thermoelectric (TE) and photovoltaic (PV) energy extraction techniques were explored with the goal of achieving best sustainability. Semi-realistic usage assumptions were taken into account to evaluate...
    Resource Type:
    Dissertation
    Full Text:
    realistic use scenarios. Up to 5% battery life extension was achieved using commonly available PV modules

  • Studying fusion reactions for effect of PCN on heavy nucleus formation and for nuclear structure effects

    Creator:
    Naik, Radhika
    Abstract:
    The fusion reaction ²⁰⁸Pb (⁵⁰Ti, xn) ²⁵⁸⁻x Rf (x = 1-3) was studied to determine PCN (probability that the mononucleus system evolves to form a compound nucleus inside the fission saddle point) and to establish the value of Wsur (survival probability) for the given reaction experimentally. The fission excitation function...
    Resource Type:
    Dissertation
    Full Text:
    larger than 2.5fm given by 1/30 AR × . This extension of the radius is attributed to the presence of

  • Diffuse deformation patterns along the North American plate boundary zone, offshore western United States

    Creator:
    Chaytor, Jason D.
    Abstract:
    Plate boundaries are commonly regions of complex, diffuse deformation with the motion across the boundary accommodated by numerous structural systems, rather than being narrow, discrete zones of deformation. One such boundary occurs where the North American plate makes contact with Juan de Fuca, Gorda, and Pacific plates along the west...
    Resource Type:
    Dissertation
    Full Text:
    ................. 136 Well Logs ......................................................................... 141

  • The development of pre-service teachers' Technology Specific Pedagogy

    Creator:
    Harrington, Rachel A.
    Abstract:
    The purpose of this study was to document the development of pre-service teachers' Technology Specific Pedagogy as they learned to teach mathematics with technology during their initial licensure program. The study investigated the pre-service teachers' learning using both a social and a psychological perspective of teacher learning. Two research questions...
    Resource Type:
    Dissertation
    Full Text:
    Technology versus Using the Technology, and Technology as an Extension/Simplifier versus Technology as

  • Distribution, structure, and function of marine ecological communities in the northern California Current upwelling ecosystem

    Creator:
    Reese, Douglas Charles
    Abstract:
    Within systems characterized by substantial spatial and temporal variability, abundances of organisms tend to be higher in localized areas. Within the northern California Current system, the identification of such marine, biological hotspots would be of great importance to resource managers, conservationists, and research planners, and is consequently a growing area...
    Resource Type:
    Dissertation
    Full Text:
    ......................................................................... 141 Distribution ofNekton and Jellies ..................................................... 146

  • Geneticist L.C. Dunn : politics, activism, and community

    Creator:
    Gormley, Melinda (Melinda Brooke)
    Abstract:
    L. C. Dunn (1893-1974) spent most of his scientific career conducting research in developmental genetics as a member of the Zoology Department at Columbia University in the City of New York. He had an accomplished scientific career researching mutations in mice, which earned him respect from other geneticists and scientists....
    Resource Type:
    Dissertation
    Full Text:
    Foreign Scholars……………………………………………………..141 Reflections and Liquidations…………………………………………………...165 Other

  • If you build it, will they come? Evolution towards the application of multi-dimensional GIS to fisheries-oceanography

    Creator:
    Vance, Tiffany C.
    Abstract:
    The development of new technologies in science is a balance between existence and use. There are three versions of this duality – something is built and users come, something is built and users don’t come, and, finally, potential users show up but the ballpark has not yet been built. In...
    Resource Type:
    Dissertation
    Full Text:
    ........................................................................ 141 Conclusions

  • Essays on the economics of wildlife management

    Creator:
    Rashford, Benjamin S.
    Abstract:
    Wildlife managers are on the front lines of the effort to conserve wildlife and are required to do so cost-effectively. This dissertation consists of three manuscripts that integrate economics and ecology to inform cost-effective wildlife management. The first and second manuscripts focus on identifying cost-effective wildlife management plans. The third...
    Resource Type:
    Dissertation

  • Comparative foraging ecology of five species of Pacific seabirds : multi-scale analyses of marine habitat use

    Creator:
    Suryan, Robert
    Abstract:
    Seabirds are an integral component of marine ecosystems, however, because humans typically observe only snapshots of their lives at sea, our understanding of seabird foraging ecology is often limited. A more complete understanding of the ecological roles of seabirds and identification of critical foraging habitats requires the ability to follow...
    Resource Type:
    Dissertation
    Full Text:
    .............................................................................................................. 141 Hypothesis 1: Larger species living closest to productive upwelling regions would have the

  • Influence of interplanted and pure stands of red alder (Alnus rubra Bong.) on microbial and chemical characteristics of a coastal forest soil in the Douglas-fir region

    Creator:
    Chen, Chi-sin
    Abstract:
    Chemical and microbial analyses were made at four seasonal intervals on soil horizons under red alder, conifers, and mixed alder-conifers at the Cascade Head Experimental Forest, established in 1937 by the U. S. Forest Service near Otis, Oregon. Microbial analyses showed that although plate counts of molds and bacteria fluctuated...
    Resource Type:
    Dissertation
    Full Text:
    Summarized stem-flow analyses - Conifers stand - June 10, 1963 to June 10, 1964 141 Summarized stem-flow

  • Population demography, resource use, and movement in cooperatively breeding Micronesian Kingfishers

    Creator:
    Kesler, Dylan C.
    Abstract:
    Island systems and species are susceptible to extinction because of their small population size and an ecological naiveté from an evolutionary past lacking strong competition and predation. For example, only one-fifth of the world’s bird species occur on islands, yet more than 90% of the avian extinctions witnessed during historic...
    Resource Type:
    Dissertation
    Full Text:
    . ............................................................................... 141 6.3. Proportional rankings of elasticity values for vital rates from 10,000 simulations of