Several uranium anomalies, with concentrations of U₃0₈ that
average below 0.003 percent and reach maximums of 0.069 percent,
are associated with black, fossiliferous, pyritic parts of the Ordovician
Ledbetter Slate in northern Stevens County, Washington. The most
uraniferous parts of the slate occur in small (average of 5 by 30...
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Spirit pluton, Stevens County, Washington
AN ABSTRACT OF THE THESIS OF
Terry Edward Mitchell for the
Eukaryotic ribosome biogenesis involves ~200 assembly
factors, but how these contribute to ribosome
maturation is poorly understood. Here, we
identify a network of factors on the nascent 60S subunit
that actively remodels preribosome structure. At its hub is
Rsa4, a direct substrate of the force-generating ATPase
Rea1. We show that...
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. Lenherr, and
D. Lupo for support in crystallization and data collection; and J. Kopp and C. Siegmann
A publication containing advice on a wide range of gardening topics, including composting, container gardens, fall/winter gardens, fertilizing, insect pests, plant diseases, planting guidelines, raised beds, site selection, slugs, soil improvement, tilling, warm-season crops, watering, and weeds. Includes regional tips for various parts of Oregon.
Provides information about complexity of watersheds. Outlines ways to form partnerships, to develop strategies for enhancing watershed resources, and to implement enhancement projects.
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likely to end up
somewhere else.
—Lawrence J. Peters
hroughout the United States, citizens are
Recalcitrance to transformation makes genetic engineering of many valuable plants infeasible for practical use. Transitory host modification during transformation using transgenes offers a possible means of overcoming this obstacle. In prior work in our laboratory, the genes GA20ox7 and EBB1 were found to increase regeneration in vitro. In this project,...
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of Agrobacterium tumefaciens. Molecular Microbiology,
51(4), 1103-1115. doi:10.1046/j.1365
Much uncertainty exists about the state of the oceanic and atmospheric circulation in the tropical Pacific over the last glacial cycle. Studies have been hampered by the fact that sediment cores suitable for study were concentrated in the western and eastern parts of the tropical Pacific, with little information from...
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. Hovan3, Robert A.
Pockalny4, Mitchell Lyle5, Richard W. Murray6, A. Christina Ravelo7, Samantha C. Bova8
Interpretation of ice core trace gas records depends on an accurate understanding of the
processes that smooth the atmospheric signal in the firn. Much work has been done to understand the
processes affecting air transport in the open pores of the firn, but a paucity of data from air trapped...
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.
Fegyveresi, J. M., R. B. Alley, M. K. Spencer, J. J. Fitzpatrick, E. J. Steig, J. W. C.
White, J. R
Interpretation of ice core trace gas records depends on an accurate understanding of the
processes that smooth the atmospheric signal in the firn. Much work has been done to understand the
processes affecting air transport in the open pores of the firn, but a paucity of data from air trapped...
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trapping in
polar firn
Mitchell, L. E., Buizert, C., Brook, E. J., Breton, D. J., Fegyveresi, J
Much uncertainty exists about the state of the oceanic and atmospheric circulation in the tropical Pacific over the last glacial cycle. Studies have been hampered by the fact that sediment cores suitable for study were concentrated in the western and eastern parts of the tropical Pacific, with little information from...
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,
Mitchell Lyle5, Richard W. Murray6, A. Christina Ravelo7, Samantha C. Bova8, Ann G. Dunlea6,
Heather L
The origin of the late pre-industrial Holocene (LPIH) increase in atmospheric methane concentrations has been much debated. Hypotheses invoking changes in solely anthropogenic sources or solely natural sources have been proposed to explain the increase in concentrations. Here two high-resolution, high-precision ice core methane concentration records from Greenland and Antarctica...
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. Mitchell, E. J. Brook, T. Sowers, J. R. McConnell, K. Taylor, Multidecadal variability of
atmospheric
The origin of the late pre-industrial Holocene (LPIH) increase in atmospheric methane concentrations has been much debated. Hypotheses invoking changes in solely anthropogenic sources or solely natural sources have been proposed to explain the increase in concentrations. Here two high-resolution, high-precision ice core methane concentration records from Greenland and Antarctica...
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, 15987 (Jul, 1997).
9. E. J. Brook, S. Harder, J. Severinghaus, E. J. Steig, C. M. Sucher, On the
With sequential computing technology reaching its speed limits, parallel processing is emerging as the key to very-high-speed computation. However, developing a parallel program is by no means a simple task; neither is analyzing the performance of parallel programs.
C* is a high-level data-parallel language that hides explicit message passing and...
Vibrio cholerae is autochthonous to various aquatic niches and is the etiological agent of the life-threatening diarrheal disease
cholera. The persistence of V. cholerae in natural habitats is a crucial factor in the epidemiology of cholera. In contrast to the
well-studied V. cholerae-chitin connection, scarce information is available about the...
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. C., Withey, J. H., & Sikora,
A. E. (2015). A metalloprotease secreted by the Type II Secretion
Vibrio cholerae is autochthonous to various aquatic niches and is the etiological agent of the life-threatening diarrheal disease
cholera. The persistence of V. cholerae in natural habitats is a crucial factor in the epidemiology of cholera. In contrast to the
well-studied V. cholerae-chitin connection, scarce information is available about the...
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ΔvchC 16961 were grown with aeration in LB broth at 37 °C for 16-18 h. Bacterial
cells were
Historically, 3M aqueous film-forming foams (AFFFs) were released at U.S. military and civilian sites to extinguish hydrocarbon-based fuel fires. To date, only C₄–C₁₀ homologues of the perfluoroalkyl sulfonic acids (PFSAs) are documented in 3M AFFFs. Perfluoroethanesulfonate (PFEtS) and perfluoropropanesulfonate (PFPrS), two ultra-short-chain PFSAs, were discovered by liquid chromatography (LC) quadrupole...
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) Moody, C. A.; Kwan, W. C.; Martin, J. W.; Muir, D. C. G.;
Mabury, S. A. Determination of Perfluorinated
The purpose of this report is to characterize the December 2007 storm and long-term storm variability along the Oregon and Washington coast, present the results of a rapid assessment of randomly selected OWEB restoration projects (restoration activities including large wood placement, fish passage, and riparian planting), and based on the...
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. class
A‐B
B‐CC‐D
E‐F
G‐H
H‐I
I‐JJ‐K
CODES
Diameter Class (large end) Length Class Function
Historically, 3M aqueous film-forming foams (AFFFs) were released at U.S. military and civilian sites to extinguish hydrocarbon-based fuel fires. To date, only C₄–C₁₀ homologues of the perfluoroalkyl sulfonic acids (PFSAs) are documented in 3M AFFFs. Perfluoroethanesulfonate (PFEtS) and perfluoropropanesulfonate (PFPrS), two ultra-short-chain PFSAs, were discovered by liquid chromatography (LC) quadrupole...
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. C.; Field, J. A., Zwitterionic, Cationic, and Anionic Fluorinated 114
Chemicals in Aqueous Film
In this project we examine the features of object oriented programming languages that make them most likely languages of choice for implementing simulations. Three simulations of a bank, hospital, and livestock farm scenarios were implemented in the language C++ in order to demonstrate how Object-Oriented languages are used in constructing...
Suicide is a leading cause of death amongst adolescents, and transgender and gender diverse youth are at especially high risk for suicidal ideation and attempt compared with cisgender peers. Using established ideation-to-action models of suicide and the Minority Stress Model, this project used the 2019 results of the Oregon Healthy...
We describe continental-scale increases in lake and stream total phosphorus (TP) concentrations, identified through periodic probability surveys of thousands of water bodies in the conterminous U.S. The increases, observed over the period 2000–2014 were most notable in sites in relatively undisturbed catchments and where TP was initially low (e.g., less...
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carbon in eutrophied lakes. Science 1977, 195, 260−262.
(2) Smith, V. H.; Tilman, G. D.; Nekola, J. C
The thesis area is located in north-central Oregon approximately 20 km west of the town of Mitchell. The rocks exposed in the area belong to the Clarno Formation. This study supports the informal reclassification of the Clarno to Group status, composed of an Upper and Lower Clarno Formation. An angular...
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approximately 20 km west of the town of Mitchell. The
rocks exposed in the area belong to the Clarno Formation
Native to the Pacific Northwest, Ceratomyxashastais a myxosporeanparasite that infects wild and cultivated salmon and has a significance impact on its population in the Klamath River basin. The study suggests that the transmission of mixed genotypes of the parasite are common in Chinook salmon but the age of the fish...
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D R . J E R R I BA RT H O LO M E W & C H A R L E N E H U RS T
S A L M O N D I S EA S E L A
Because iso- and anisohydric species differ in stomatal regulation
of the rate and magnitude of fluctuations in shoot
water potential, they may be expected to show differences in
the plasticity of their shoot water relations components, but
explicit comparisons of this nature have rarely been made.
We subjected excised shoots...
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collected from the same
J. monosperma plant on 12 March 2013 and a non-rehydrated (c) and rehydrated (d
During the Deepwater Horizon oil well blowout in the Gulf of Mexico, the application of 7 million liters of chemical dispersants aimed to stimulate microbial crude oil degradation by increasing the bioavailability of oil compounds. However, the effects of dispersants on oil biodegradation rates are debated. In laboratory experiments, we...
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water rinsed (3×) 20 L carboys. Carboys were transported at 4°C to the laboratory
at the University of
During the Deepwater Horizon oil well blowout in the Gulf of Mexico, the application of 7 million liters of chemical dispersants aimed to stimulate microbial crude oil degradation by increasing the bioavailability of oil compounds. However, the effects of dispersants on oil biodegradation rates are debated. In laboratory experiments, we...
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Loftisa,4, Sarah Harrisona, Sairah Y. Malkina,
Matthew J. Perkinsd, Jennifer Fieldd, Mitchell L. Soginc
The smartphone is changing the way individuals interact with one another in society. Given the instant accessibility and multitude of socially iconic features, the contemporary handheld device grants users an unprecedented level of connectedness. However, despite the new breadth of access, perhaps the depth of the resulting social networks is...
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debate, cellphone
critic (but also applicable to smartphones) Robert J. Samuelson (2004) believes “the
The smartphone is changing the way individuals interact with one another in society. Given the instant accessibility and multitude of socially iconic features, the contemporary handheld device grants users an unprecedented level of connectedness. However, despite the new breadth of access, perhaps the depth of the resulting social networks is...
We are developing a flavin-containing (Fmo) knock-out mouse for Fmo2 that will be utilized to elucidate the role of active human FMO isoform 2 (FMO2.1) in xenobiotic metabolism and toxicity. Since FMO2 is primarily expressed in lung this will provide information on how 27% of African-Americans and 5% of Hispanics...
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monooxygenases (FMOs) found to be distinct from CYPs (Ziegler and Mitchell, 1972). Mammalian FMOs are a
This thesis consists of three manuscripts addressing separate components of barley breeding, plus an introduction and a conclusion summarizing the status of barley in the Pacific Northwest, plus the implications of the research presented in this thesis. In the first manuscript, a package written for the statistical software "R" that...
Here, we describe and demonstrate a geographic information systems-based lithic morphometric research (GLiMR) software approach. GLiMR accurately and rapidly handles a sequence of ArcGIS procedures to extract geometric morphometric data from 2D and 3D scan files of lithic artifacts. GLiMR generates three main types of geometric properties: shape data, topographic...
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extensions enabled.
b. 32 bit version of python 2.7 (https://www.python.org/downloads/).
c. 32 bit
Landslides are an insidious natural hazard, which can result in significant damage to public infrastructure. Limited monitoring tools are available, particularly tools suitable for use in forested environments. These tools often only allow a few locations across the slide to be monitored. Terrestrial Laser Scanning (TLS) shows promise as a...
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Jeremy C. Conner1, Michael J. Olsen2
1. Major, United States Army, School of Civil and Construction
Lodgepole pine (Pinus contorta) forests are widely distributed throughout North America and are subject to mountain pine
beetle (Dendroctonus ponderosae) epidemics, which have caused mortality over millions of hectares of mature trees in
recent decades. Mountain pine beetle is known to influence stand structure, and has the ability to impact...
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Epidemic in Central Oregon
Michelle C. Agne1*, David C. Shaw1, Travis J. Woolley1¤, Mónica E. Queijeiro
The Mitchell inlier in north-central Oregon contains the largest exposure of Cretaceous marine sedimentary rocks in this region. Nearly 9,000 ft of Albian-Cenamanian rocks are exposed along the flanks of the Mitchell anticline. The Cretaceous section rests unconformably overlain by Tertiary volcanic rocks. The Cretaceous rocks have previously been divided...
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AN ABS'i C OF TidE IS OF
Stephen W. Little for the
Intraspecific life history attributes of growth, survival, and reproduction can vary in
response to changes in the physical environment. These changes can induce a cascading effect
across trophic levels. In marine systems, shifts in ocean conditions such as warm and cold phases
of ENSO can change primary production in benthic...
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development 3
T. A. Ebert1*, J. C. Hernández2,3, and M. P. Russell2 4
1Dept. Zoology, Oregon State
Intraspecific life history attributes of growth, survival, and reproduction can vary in
response to changes in the physical environment. These changes can induce a cascading effect
across trophic levels. In marine systems, shifts in ocean conditions such as warm and cold phases
of ENSO can change primary production in benthic...
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sea urchin
Strongylocentrotus purpuratus over space and time
T. A. Ebert1,*, J. C. Hernández2,3, M
A three-dimensional, process-based model of the ocean’s carbon and nitrogen cycles, including
13C and 15N isotopes, is used to explore effects of idealized changes in the soft-tissue biological pump. Results
are presented from one preindustrial control run (piCtrl) and six simulations of the Last Glacial Maximum
(LGM) with increasing values...
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. Schmittner1, and C. J. Somes2
1College of Earth, Ocean, and Atmospheric Sciences, Oregon State University
A three-dimensional, process-based model of the ocean’s carbon and nitrogen cycles, including
13C and 15N isotopes, is used to explore effects of idealized changes in the soft-tissue biological pump. Results
are presented from one preindustrial control run (piCtrl) and six simulations of the Last Glacial Maximum
(LGM) with increasing values...
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. Schmittner1 and C. J. Somes2
1College of Earth, Ocean, and Atmospheric Sciences, Oregon State University
Air was sampled from the porous firn layer at the NEEM site in Northern Greenland. We use an ensemble of ten reference tracers of known atmospheric history to characterise the transport properties of the site. By analysing uncertainties in both data and the reference gas atmospheric histories, we can objectively...
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for NEEM, Northern Greenland
C. Buizert1, P. Martinerie2, V. V. Petrenko3,*, J. P. Severinghaus4, C
Most studies on Arctic food webs have neglected microphytobenthos as a potential food source because we currently lack robust measurements of δ¹³C values for microphytobenthos from this environment. As a result, the role of microphytobenthos in high latitude marine food webs is not well understood. We combined field measurements of...
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Ecol Prog Ser
238:1–13
Kirst GO, Wiencke C (1995) Ecophysiology of polar algae. J Phycol
31:181–199
The northwest one-quarter of the Prineville Quadrangle is
underlain by Tertiary and Quaternary volcanic and volcaniclastic
rocks of the Columbia River Basalt Group, and the Clarno, John Day,
Rattlesnake and Deschutes Formations.
The Clarno Formation is dominated by pyroxene-bearing
andesites, but also contains olivine-bearing basalts, oxyhornblende-bearing
dacite and rhyodacite flows...
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AN ABSTRACT OF THE THESIS OF
David J. Thormahlen for the degree
The Upper Ojai Valley is a tectonic depression between
opposing reverse faults, Its northern border is formed
by the active, north-dipping San Cayetano fault with 6.0
km of dip-slip displacement in the Silverthread oil field
and 2.6 km displacement west of Sisar Creek; the fault
dies out farther west in...
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C*y
c.
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1.12 1
1.13
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Surface trace, reveres fault.
SYMBOLS
Satic(y ,'
Ventura J
The West Antarctic Ice Sheet Divide (WAIS Divide, WD) ice core is a newly drilled, high-accumulation
deep ice core that provides Antarctic climate records of
the past ~68 ka at unprecedented temporal resolution. The
upper 2850 m (back to 31.2 ka BP) have been dated using
annual-layer counting. Here we...
Variable ocean conditions can greatly impact lower trophic level prey assemblages in marine ecosystems, with effects propagating up to higher trophic levels. Our goal was to better understand how varying ocean conditions influence diets and niche overlap among a suite of low- to mid trophic level predators. We studied the...