Index Catalog // ScholarsArchive@OSU

A trace element study of plagioclase and clinopyroxene phenocrysts in historical lavas from Mt. Etna, Sicily, by laser ablation ICP-MS

Creator:: Russo, Christopher J.
Abstract:: Understanding magmatic processes occurring at depth in magmatic systems is fundamental for a more complete understanding of the variations sampled in lavas erupted from these systems on the Earth's surface. This thesis presents the results of detailed trace element analyses of plagioclase and clinopyroxene phenocrysts measured by laser ablation-inductively coupled...
Resource Type:: Masters Thesis
Full Text:: . Abstract Approved: David W. Graham Understanding magmatic processes occurring at depth in magmatic

Effects of height imputation strategies on stand volume estimation

Creator:: Garber, Sean M., Temesgen, Hailemariam, Monleon, Vicente J., and Harm, David W.
Abstract:: Subsampling and subsequent imputation of tree heights can improve the predictive performance of stand volume estimation but may also introduce biases. Using coastal Douglas-fir data from southwest Oregon, USA, the predictive performance of several height imputation strategies for estimating stand volume was evaluated. A subsample of 1-15 trees was randomly...
Resource Type:: Article
Full Text:: , Vicente J. Monleon, and David W. Harm Abstract: Subsampling and subsequent imputation of tree heights can

Effects of live crown on vertical patterns of wood density and growth in Douglas-fir

Creator:: Gartner, Barbara L., North, Eric M., Johnson, G. R., and Singleton, Ryan
Abstract:: It would be valuable economically to know what are the biological triggers for formation of mature wood (currently of high value) and (or) what maintains production of juvenile wood (currently of low value), to develop silvicultural regimes that control the relative production of the two types of wood. Foresters commonly...
Resource Type:: Article
Full Text:: douglas de Menzies (Pseudotsuga menziesii (Mirb.) Franco) âgés de 34 ans. Les 18 arbres ont été

Impact of competitor species composition on predicting diameter growth and survival rates of Douglas-fir trees in southwestern Oregon

Creator:: Bravo, Felipe, Hann, David W., and Maguire, Douglas A. (Douglas Alan)
Abstract:: Mixed conifer and hardwood stands in southwestern Oregon were studied to explore the hypothesis that competition effects on individual-tree growth and survival will differ according to the species comprising the competition measure. Likewise, it was hypothesized that competition measures should extrapolate best if crown-based surrogates are given preference over diameter-based...
Resource Type:: Article
Full Text:: diameter growth and survival rates of Douglas-fir trees in southwestern Oregon1 Felipe Bravo, David W

Effects of stand density on the growth of young Douglas-fir trees

Creator:: Woodruff, David R., Bond, Barbara J., Ritchie, Gary A., and Scott, William
Abstract:: The objectives of this study were (i) to provide further evidence of a positive correlation of stand density with early growth of coastal Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii); (ii) to determine when after planting the positive growth response occurs and how long it lasts; and (iii) to use...
Resource Type:: Article
Full Text:: Douglas-fir trees David R. Woodruff, Barbara J. Bond, Gary A. Ritchie, and William Scott Abstract: The

Salmonberry and salal annual aerial stem production: the maintenance of shrub cover in forest stands

Creator:: Tappeiner, John C., Zasada, John C., Huffman, David W. (William), 1962-, and Ganio, Lisa M.
Abstract:: Annual sprouting of aerial stems and ramets enables populations of salmonberry (Rubus spectabilis Pursh), salal (Gaultheria shallon Pursh), and probably other forest shrubs to maintain dense covers (>20 000 stems/ha). We studied annual stem production of salmonberry on cut (all stems cut within 15 cm of the ground) and uncut...
Resource Type:: Article
Full Text:: production: the maintenance of shrub cover in forest stands1 John C. Tappeiner, II, John C. Zasada, David W

Anomalous seafloor spreading of the Southeast Indian Ridge near the Amsterdam-St. Paul Plateau

Creator:: Scheirer, Daniel S., Forsyth, Donald W., Conder, James A., Eberle, MichaelA., Hung, Shu-Huei, Johnson, Kevin, and Graham, David W.
Abstract:: The Amsterdam-St. Paul Plateau is bisected by the intermediate-rate spreading Southeast Indian Ridge, and numerous geophysical and tectonic anomalies arise from the interactions of the Amsterdam-St. Paul hotspot and the spreading center. The plate boundary geometry on the hotspot platform evolves rapidly (on timescales <1 Myr), off-axis volcanism is abundant,...
Resource Type:: Article
Full Text:: Island Kevin T. M. Johnson Bishop Museum, Natural Sciences, Honolulu, Hawaii David W . Graham

Biological and mathematical modeling of dynamics of furunculosis in chinook salmon (Oncorhynchus tshawytscha) and infectious hematopoietic necrosis (IHN) in rainbow trout (Oncorhynchus mykiss)

Creator:: Ogut, Hamdi
Abstract:: A series of experiments with Aeromonas salmonicida and infectious hematopoietic necrosis virus (IHNV) were carried out to determine dynamics of the spread of infection in chinook salmon (1.2-1.98g) and rainbow trout (1.2-3.1g). It was found in experiments with A. salmonicida that fish infected by bath immersion became infectious at 4...
Resource Type:: Dissertation
Full Text:: members: Dr. Robert Olson, Dr. David Sampson, Dr. Richard Holt, Dr. Anne Rossignol, Dr. Carl Schreck and

Librarianship at the intersection of engineering and business

Creator:: Mellinger, Margaret
Abstract:: Oregon State University has initiated two programs that engage engineering students in entrepreneurship. The first program is an entrepreneurship minor available through the College of Business that enrolls engineering and science majors in the same courses with business students. The second is the Austin Entrepreneurship Program, a residential program offered...
Resource Type:: Preprint
Full Text:: , Hans-Werner Kaas, and David Keeling. 2003. The future of product development. McKinsey Quarterly 3: 28

Wind-driven inner-shelf circulation off central Oregon during summer

Creator:: Kirincich, Anthony R., Barth, John A., Grantham, Brian A., Menge, Bruce A., and Lubchenco, Jane
Abstract:: Velocity measurements from 17 deployments of moored acoustic Doppler current profilers obtained during four summer upwelling seasons are used to describe the crossshelf divergence of Ekman transport in the inner shelf off Oregon. For each deployment the measured surface and bottom cross-shelf transports were compared with estimates of the theoretical...
Resource Type:: Article
Full Text:: productivity [Small and Menzies, 1981]. During summer, southward winds with mean values of 0.03 N m�2 and small

ScholarsArchive@OSU

A trace element study of plagioclase and clinopyroxene phenocrysts in historical lavas from Mt. Etna, Sicily, by laser ablation ICP-MS

Effects of height imputation strategies on stand volume estimation

Effects of live crown on vertical patterns of wood density and growth in Douglas-fir

Impact of competitor species composition on predicting diameter growth and survival rates of Douglas-fir trees in southwestern Oregon

Effects of stand density on the growth of young Douglas-fir trees

Salmonberry and salal annual aerial stem production: the maintenance of shrub cover in forest stands

Anomalous seafloor spreading of the Southeast Indian Ridge near the Amsterdam-St. Paul Plateau

Biological and mathematical modeling of dynamics of furunculosis in chinook salmon (Oncorhynchus tshawytscha) and infectious hematopoietic necrosis (IHN) in rainbow trout (Oncorhynchus mykiss)

Librarianship at the intersection of engineering and business

Wind-driven inner-shelf circulation off central Oregon during summer

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