Index Catalog // ScholarsArchive@OSU

A mid-Cretaceous ambrosia fungus, Paleoambrosia entomophila gen. nov. et sp. nov. (Ascomycota: Ophiostomatales) in Burmese (Myanmar) amber, and evidence for a femoral mycangium

Creator:: Poinar, George O., Jr. and Vega, Fernando E.
Abstract:: An ambrosia fungus is described from filamentous sporodochia adjacent to a wood-boring ambrosia beetle (Coleoptera: Curculionidae: Platypodinae) in mid-Cretaceous Burmese amber. Yeast-like propagules and hyphal fragments of Paleoambrosia entomophila gen. nov. et sp. nov. occur in glandular sac mycangia located inside the femur of the beetle. This is the first...
Resource Type:: Article
Full Text:: Ophiostomataceae Nannfeldt (1932) Paleoambrosia Poinar and Vega gen. nov. Diagnosis: as for type species (monotypic

Pummerer Cyclization Revisited: Unraveling of Acyl Oxonium Ion and Vinyl Sulfide Pathways

Creator:: Li, Xin and Carter, Rich G.
Abstract:: Two viable pathways (vinyl sulfide and acyl oxonium ion) for the Pummerer cyclization have been unraveled that expand the reaction scope and capabilities. Use of Bronsted-enhanced Lewis acidity was key to realization of the vinyl sulfide pathway, whereas selective complexation of the sulfur lone pair facilitated the unprecedented acyl oxonium...
Resource Type:: Article
Full Text:: . Chem. 1990, 55, 1932-1936. (c) Ishibashi, H.; Kawanami, H.; Iriyama, H.; Ikeda, M. Tetrahedron Lett

A Field Study on Marching Band Members' Workload Assessment

Creator:: Wells, Robyn R.
Abstract:: Marching band activities consist of both physically and cognitively demanding tasks. The demands that this activity has on players has largely been unstudied. The goal of this study was to investigate the effects of players’ experience level, role, and gender on the workload of marching band players via a field...
Resource Type:: Honors College Thesis
Full Text:: Cohort Study. PLoS ONE [E]. 2016;11(9):urn issn 1932--6203. 3. Larsson L. Nature and Impact of

Terpenoid Compositions of Resins from Callitris Species (Cupressaceae)

Creator:: Simoneit, Bernd R. T., Cox, Robert E., Oros, Daniel R., and Otto, Angelika
Abstract:: The environmental fate of conifer resins and their natural product compounds as mixtures is of importance for source, alteration, and transport studies. The compound compositions of resins of the common Callitris species (Cupressaceae) based on gas chromatography-mass spectrometry have not been reported. Results show that diterpenoids were the most abundant...
Resource Type:: Article
Full Text:: und Ketone. Helv. Chim. Acta 1958, 41, 1915–1932. [CrossRef] 33. Sy, L.-K.; Brown, G.D. Abietane

Effect of Particle Shape on Stress-Dilatancy Responses of Medium-Dense Sands

Creator:: Xiao, Yang, Long, Leihang, Evans, T. Matthew, Zhou, Hai, Liu, Hanlong, and Stuedlein, Armin W.
Abstract:: The effect of particle shape on the strength, dilatancy, and stress-dilatancy relationship was systematically investigated through a series of drained triaxial compression tests on sands mixed with angular and rounded glass beads of different proportions (0%, 25%, 50%, 75%, and 100%). A distinct overall regularity parameter was used to define...
Resource Type:: Article
Full Text:: al. 2017). Wadell (1932) first proposed the shape parameter: sphericity (SC), which is defined as the

Investigating Accelerated Carbonation Methods for Sequestering CO₂ into Lime Treated Soils

Creator:: Moore, Jaxom
Abstract:: Civil engineers frequently use lime to improve the mechanical properties of weak clayey soils. The production of lime is associated with significant CO₂ emissions. Sequestering carbon dioxide into the stabilized soil can effectively reduce the carbon footprint of the lime. In the presence of CO₂, unreacted lime in the stabilized...
Resource Type:: Masters Thesis
Full Text:: to 15 plasticity limits, and cohesion (Casagrande, 1932). These plasticity limits are

A doubled down invasion of the northeast Pacific by the Asian mud shrimp, Upogebia major and its coevolved bopyrid isopod parasite, Orthione griffenis

Creator:: Chapman, John W., Li, Jingchun, McGowan, Michael F., Breitenstein, Ralph A., Appy, Ralph, Hieb, Kathryn A., Piotrowski, Christina N., and Elder, Leanne E.
Abstract:: Dramatic declines of the native northeast Pacific mud shrimp, Upogebia pugettensis over the last three decades have occurred in response to intense infestations by the Asian bopyrid isopod parasite, Orthione griffenis, that was introduced in the 1980s. We report herein the arrival of the Asian mud shrimp, Upogebia major, in...
Resource Type:: Article

Banks, Gardens and Bees: Enhancing Community Resilience in West Africa

Creator:: Polasky, Sophia
Abstract:: International development programs are often implemented with the goal of building community resilience, but without a clear articulation of how this goal will be met, or any consideration of if or why the effort was successful after it has concluded. This thesis considers three different activities implemented by the U....
Resource Type:: Masters Thesis

Inferring Patterns and Processes of Emergence in Clonal Phytophthora Epidemics using Population Genomic Approaches

Creator:: Cauldron, Nicholas C.
Abstract:: Oomycete and fungal pathogens threaten food, fiber, and forests around the world. With climate change, these pathogens are expected to emerge more frequently. Evolution can facilitate their emergence through mechanisms such as mutations that change or expand host range. Characterizing evolutionary mechanisms in plant pathogens will contribute to our ability...
Resource Type:: Dissertation

Oceans and Origins: Oregon State University and Oceanography in the Twentieth Century

Creator:: Guerrini, Anita and Rozwadowski, Helen M.
Abstract:: A collection of articles on the origins and early years of oceanography at OSU.
Resource Type:: Other

ScholarsArchive@OSU

A mid-Cretaceous ambrosia fungus, Paleoambrosia entomophila gen. nov. et sp. nov. (Ascomycota: Ophiostomatales) in Burmese (Myanmar) amber, and evidence for a femoral mycangium

Pummerer Cyclization Revisited: Unraveling of Acyl Oxonium Ion and Vinyl Sulfide Pathways

A Field Study on Marching Band Members' Workload Assessment

Terpenoid Compositions of Resins from Callitris Species (Cupressaceae)

Effect of Particle Shape on Stress-Dilatancy Responses of Medium-Dense Sands

Investigating Accelerated Carbonation Methods for Sequestering CO₂ into Lime Treated Soils

A doubled down invasion of the northeast Pacific by the Asian mud shrimp, Upogebia major and its coevolved bopyrid isopod parasite, Orthione griffenis

Banks, Gardens and Bees: Enhancing Community Resilience in West Africa

Inferring Patterns and Processes of Emergence in Clonal Phytophthora Epidemics using Population Genomic Approaches

Oceans and Origins: Oregon State University and Oceanography in the Twentieth Century

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