Index Catalog // ScholarsArchive@OSU

Biological screening of selected Pacific Northwest forest plants using the brine shrimp (Artemia salina) toxicity bioassay

Creator:: Karchesy, Yvette M., Kelsey, Rick G., Constantine, George, and Karchesy, Joseph J.
Abstract:: The brine shrimp (Artemia salina) bioassay was used to screen 211 methanol extracts from 128 species of Pacific Northwest plants in search of general cytotoxic activity. Strong toxicity (LC₅₀ < 100 µg/ml) was found for 17 extracts from 13 species, with highest activity observed for Angelica arguta roots at <10...
Resource Type:: Article
Full Text:: bioassay Yvette M. Karchesy1, Rick G. Kelsey2*, George Constantine3 and Joseph J. Karchesy1 Abstract The

Investigation of MoS2 with Ambient Pressure X-ray Photoelectron Spectroscopy

Creator:: Dardzinski, Derek P.
Abstract:: Molybdenum disulfide (MoS2) has potential applications as a low-cost catalyst for the hydrogen evolution reaction (HER). Defects on MoS2, such as edge sites and sulfur vacancies, are known to be the major active sites for HER. Controlling the formation of these defects allows for the enhancement in reactivity of MoS2...
Resource Type:: Honors College Thesis
Full Text:: _____________________________________________________________________ Kelsey Stoerzinger, Committee Member, representing Chemical Engineering

Comparing Random and Nonrandom Spatial Patterns of Artifacts within Lithostratigraphic Unit 3 at Cooper’s Ferry, Idaho

Creator:: Gregory, Alex R.
Abstract:: Archaeological investigations at the Cooper's Ferry site in Western Idaho have recovered cultural remains dating to 16,000 years ago, suggesting the oldest human occupation recorded in North America. However, many archaeologists have argued the initial peopling of North America occurred no earlier than the opening of an ice-free corridor between...
Resource Type:: Masters Thesis
Full Text:: , Idaho Abstract approved: ____________________________________________________ Loren G. Davis

Altering phytoplankton growth rates changes their value as food for microzooplankton grazers

Creator:: McBeain, Kelsey A. and Halsey, Kimberly H.
Abstract:: When microzooplankton graze phytoplankton prey, the consumed carbon is partitioned into particulates, dissolved organic carbon (DOC), and CO2. Allocation of prey carbon to these various fates has important consequences for marine ecosystem function. A 2-stage continuous culture system was used to investigate carbon allocation by microzooplankton consuming phytoplankton grown in...
Resource Type:: Article
Full Text:: Altering phytoplankton growth rates changes their value as food for microzooplankton grazers Kelsey A

Structure and role for active site lid of lactate monooxygenase from Mycobacterium smegmatis

Creator:: Kean, Kelsey M. and Karplus, P. Andrew
Abstract:: Lactate monooxygenase (LMO) catalyzes the FMN-dependent "coupled" oxidation of lactate and O-2 to acetate, carbon dioxide, and water, involving pyruvate and hydrogen peroxide as enzyme-bound intermediates. Other alpha-hydroxy acid oxidase family members follow an "uncoupled pathway," wherein the alpha-keto acid product quickly dissociates before the reduced flavin reacts with oxygen....
Resource Type:: Article
Full Text:: & Biophysics Kean, Kelsey; Oregon State University, Biochemistry & Biophysics Keywords: flavoenzyme

Using The MPA Guide to Better Understand Global Marine Conservation Efforts

Creator:: McArthur, Madeleine G.
Abstract:: Across the globe, Marine Protected Areas (MPAs) have been established to protect biodiversity, sustain fisheries, and preserve cultural resources. However, there exist broad differences among MPAs with respect to their establishment stage and protective regulations, making it difficult to quantify how much ocean protection is actually occurring. This thesis utilizes...
Resource Type:: Honors College Thesis
Full Text:: Expansion 1,146,120 Highly Protected 2c Midway Atoll Special Management Area 492 Highly Protected

Buprenorphine Coverage in the Medicare Part D Program for 2007 to 2018

Resource Type:: Article
Full Text:: k e r B r o w s e A ‐ Z J o u r n a l s T a g s H e l p Search launch

Grazing Effects on Fuels and Plant Community Characteristics across Three Community Types in Wyoming Big Sagebrush Steppe

Creator:: Thomas, Tyler W.
Abstract:: Livestock grazing is the prominent land use in Wyoming big sagebrush (Artemisia tridentata ssp. wyomingensis [Beetle & A. Young] S.L. Welsh) steppe and has been present since the late 1800’s. There have been calls to remove livestock grazing from rangelands as historic grazing practices resulted in the degradation of some...
Resource Type:: Masters Thesis

A Systematic Review of Diversity and Inclusion Scholarly Sources in Natural Resources (1919 – 2018)

Creator:: Brown, Jasmine K. and Rempel, Hannah G.
Abstract:: This dataset was created for the purpose of collecting and cataloguing sources that mentioned aspects of cultural diversity or workforce diversity within natural resource professions. The exploratory questions that prompted the collection of sources in this dataset were: - Is diversity discussed in scholarly sources within natural resources? - If...
Resource Type:: Dataset
Full Text:: soon (e.g. a student expected to graduate)] Name: Hannah G. Rempel Institution: Oregon State

High resolution lake sediment record reveals self-organized criticality in erosion processes regulated by internal feedbacks

Creator:: Colombaroli, D., Gavin, D. G., Morey, A. E., and Thorndycraft, V. R.
Abstract:: Reconstruction of high-frequency erosion variability beyond the instrumental record requires well-dated, high-resolution proxies from sediment archives. We used computed tomography (CT) scans of finely laminated silt layers from a lake-sediment record in southwest Oregon to quantify the magnitude of natural landscape erosion events over the last 2000years in order to...
Resource Type:: Article
Full Text:: distributions were plotted against the age estimates of tsunamis at Bradley Lake, 269 Oregon (Kelsey et al

ScholarsArchive@OSU

Biological screening of selected Pacific Northwest forest plants using the brine shrimp (Artemia salina) toxicity bioassay

Investigation of MoS2 with Ambient Pressure X-ray Photoelectron Spectroscopy

Comparing Random and Nonrandom Spatial Patterns of Artifacts within Lithostratigraphic Unit 3 at Cooper’s Ferry, Idaho

Altering phytoplankton growth rates changes their value as food for microzooplankton grazers

Structure and role for active site lid of lactate monooxygenase from Mycobacterium smegmatis

Using The MPA Guide to Better Understand Global Marine Conservation Efforts

Buprenorphine Coverage in the Medicare Part D Program for 2007 to 2018

Grazing Effects on Fuels and Plant Community Characteristics across Three Community Types in Wyoming Big Sagebrush Steppe

A Systematic Review of Diversity and Inclusion Scholarly Sources in Natural Resources (1919 – 2018)

High resolution lake sediment record reveals self-organized criticality in erosion processes regulated by internal feedbacks

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