Index Catalog // ScholarsArchive@OSU

Toward biologically meaningful net carbon exchange estimates for tall, dense canopies: Multi-level eddy covariance observations and canopy coupling regimes in a mature Douglas-fir forest in Oregon

Creator:: Thomas, Christoph K., Martin, Jonathan G., Law, Beverly E., and Davis, Kent
Abstract:: We sought to improve net ecosystem exchange (NEE) estimates for a tall, dense, mature Douglas-Fir forest in the Oregon Coast range characterized by weak flows, systematic wind directional shear, and limited turbulent mixing throughout the diurnal period. We used eddy covariance (EC) observations at two levels and concurrent biological measurements...
Resource Type:: Article
Full Text:: turbulent mixing throughout the diurnal period. We used eddy covariance (EC) observations at two levels

New bioactive natural products from marine algae and cyanobacteria

Creator:: Sabry, Omar Mohamed
Abstract:: This thesis is an account of investigation on the natural products deriving from various marine algae and has resulted in the discovery of eleven novel bioactive metabolites. Isolation and characterization of these new molecules were carried out using different chromatographic techniques and by analyses of different spectroscopic data, respectively. Using...
Resource Type:: Dissertation
Full Text:: agent that is currently in phase Ill clinical trial is ecteinascidin 743 (11 ),22 isolated from the

Cultural controls for suppressing Phytophthora cinnamomi root rot of blueberry

Creator:: Yeo, John R.
Abstract:: Phytophthora cinnamomi is a soilborne pathogen that causes root rot disease of highbush blueberry (Vaccinium corymbosum L.). When new installations of susceptible blueberry cultivars are infected with P. cinnamomi, plants often fail to grow significant new tissue, greatly reducing yields over the life of the planting. Chemical fungicides are available...
Resource Type:: Dissertation
Full Text:: increase soil electrical conductivity (EC) beyond current recommended salinity guidelines for blueberries

Coibamide A Induces mTOR-Independent Autophagy and Cell Death in Human Glioblastoma Cells

Creator:: Hau, Andrew M., Greenwood, Jeffrey A., Lohr, Christiane V., Serrill, Jeffrey D., Proteau, Philip J., Ganley, Ian G., McPhail, Kerry L., and Ishmael, Jane E.
Abstract:: Coibamide A is an N-methyl-stabilized depsipeptide that was isolated from a marine cyanobacterium as part of an International Cooperative Biodiversity Groups (ICBG) program based in Panama. Previous testing of coibamide A in the NCI in vitro 60 cancer cell line panel revealed a potent anti-proliferative response and "COMPARE-negative" profile indicative...
Resource Type:: Article

Classical chaotic scatting from symmetric four hill potentials

Creator:: Bauman, Jordan Michael
Abstract:: Classical chaotic scattering experiments were performed on ten different four hill potentials, unique under x-axis reflection, given by: V(x,y) = x²y²e⁻⁽ˣ² ⁺ ʸ²⁾ σᵢ where σᵢ was ±1 depending upon quadrant. Our work was based on a paper (9) that only studied the case where σᵢ =1 in all quadrants....
Resource Type:: Masters Thesis
Full Text:: .663 ± 0.007, V2cO.683 + 0.010, V3=0.655 ± 0.011, V4A=O.7l4 + 0.010, V4B=O.743 + 0.003, VSA=O.74l

Grain sorghum

Creator:: Armah-Agyeman, Grace, Loiland, Jim, Karow, Russell S., Payne, William A., Trostle, Calvin, Bean, Brent, and Oregon State University. Extension Service
Abstract:: Sorghums (Sorghum bicolor) are warm-season grasses native to Africa. They were introduced into the United States in the 17th century. They are grown primarily under dryland conditions or with limited irrigation in the semiarid southwest and the Great Plains. Grain sorghums generally are cultivated in areas that are too hot...
Resource Type:: Technical Report
Full Text:: varieties under the dryland conditions of Pendleton, Oregon. Variety Yield (lb/a) Ranking Dekalb 18 Ec

Physical activity recognition of free-living data using change-point detection algorithms and hidden Markov models

Creator:: Anderson, Michael M.
Abstract:: Physical activity recognition using accelerometer data is a rapidly emerging ﬁeld with many real-world applications. Much of the previous work in this area has assumed that the accelerometer data has already been segmented into pure activities, and the activity recognition task has been to classify these segments. In reality, activity...
Resource Type:: Masters Thesis
Full Text:: 0.005 0.01 0.05 0.1 0 20 40 60 80 100 False Positives / s D et ec tio n T im e (s

Habitat selection of hatchery and wild juvenile salmonids in Eagle Creek Basin, Oregon

Creator:: Brignon, William R.
Abstract:: To best manage Eagle Creek National Fish Hatchery and minimize any negative impacts that the current hatchery program may be having on Endangered Species Act-listed salmonids in the Eagle Creek Basin, I determined if wild fish are being displaced from preferred habitats by hatchery salmonids Oncorhynchus spp. This thesis had...
Resource Type:: Masters Thesis

Aryl acetylene substituent effects : the synthesis and application of biaryls

Creator:: Naffziger, Michael R.
Abstract:: The work described herein details the synthesis and application of biphenyls that probe the effects of hydrogen, Cl / Br, and methyl substituents on the aryl ring of the terminal acetylenic carbon. From this work, we successfully developed the rapid synthesis of phenyl acetylenes in 3-4 steps from inexpensive commercially...
Resource Type:: Masters Thesis

Jet stream intraseasonal oscillations drive dominant ecosystem variations in Oregon’s summertime coastal upwelling system

Creator:: Bane, John M., Spitz, Yvette H., Letelier, Ricardo M., and Peterson, William T.
Abstract:: Summertime wind stress along the coast of the northwestern United States typically exhibits intraseasonal oscillations (ISOs) with periods from ≈15 to 40 days, as well as fluctuations on the 2- to 6-day “weather-band” and 1-day diurnal time scales. Coastal upwelling of cool, nutrient-rich water is driven by extended periods of...
Resource Type:: Article
Full Text:: . Bane et al. PNAS � August 14, 2007 � vol. 104 � no. 33 � 13263 EC O LO G Y G EO PH YS IC S

ScholarsArchive@OSU

Toward biologically meaningful net carbon exchange estimates for tall, dense canopies: Multi-level eddy covariance observations and canopy coupling regimes in a mature Douglas-fir forest in Oregon

New bioactive natural products from marine algae and cyanobacteria

Cultural controls for suppressing Phytophthora cinnamomi root rot of blueberry

Coibamide A Induces mTOR-Independent Autophagy and Cell Death in Human Glioblastoma Cells

Classical chaotic scatting from symmetric four hill potentials

Grain sorghum

Physical activity recognition of free-living data using change-point detection algorithms and hidden Markov models

Habitat selection of hatchery and wild juvenile salmonids in Eagle Creek Basin, Oregon

Aryl acetylene substituent effects : the synthesis and application of biaryls

Jet stream intraseasonal oscillations drive dominant ecosystem variations in Oregon’s summertime coastal upwelling system

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