Soil acidity is a major factor inhibiting pasture production in western Oregon. The typical management solution to acidic soil problems is to lime. However, lime cannot be incorporated directly into the soil in established pasture. The only alternative is topdress or surface apply lime and wait for soil fauna to...
The Whittier fault forms the central part of a fault system extending
from the East Montebello fault at Whittier Narrows to the Elsinore fault,
which is traced as far as the Mexican border. The Whittier fault forms a
restraining bend in this fault system, resulting in uplift of the Puente...
Four distinct lithologic units compose the Tertiary rocks of the Neahkahnie Mountain - Angora Peak area, located along the northwest
Oregon coast near the town of Nehalem. The Tertiary units are the late Oligocene to early Miocene Oswald West mudstones, the middle Miocene Angora Peak sandstone member of the Astoria...
Lipid biomarkers in sediments are widely used to infer environmental conditions that have
occurred in the geological past, but these reconstructions require a careful consideration of the
biotic and abiotic processes that degrade and alter the lipid biomarker compositions before
and after deposition. In this paper, we use alkenones produced...
Wildlife epidemiological outcomes can depend strongly on the composition of an ecological community, particularly when multiple host species are affected by the same pathogen. However, the relationship between host species richness and disease risk can vary with community context and with the degree of spillover transmission that occurs among co-occurring...
This thesis is an effort to formalize and document some of the changes occuring in the Warwar Valley of Gongola State, Nigeria, West Africa. The documentation will comprise a photographic study over time accompanied by an ethnographic narrative. Information gathered from photographic images, field notes and the anthropological record will...
The Middle and West Forks of Little Sheep Creek in the southern Tendoy Range have incised valleys across Cenozoic structural features exposing strata that range in age from the Mississippian to the Neoene. Paleozoic strata are 1,349 m thick and belong to the Mission Canyon Limestone, the Big Snowy, Amsden,...
Tolerance analysis and synthesis plays a vital role in the success of a product design because it directly affects product quality and manufacturing cost. It also affects manufacturing process selection and planning. This research provides a review of several commonly used assembly tolerance analysis models and evaluation of their limitations....
From 2002 to 2007, 101 camelid abortions and stillbirths were submitted to the Veterinary Diagnostic Laboratory at Oregon State University (84 alpacas, 13 llamas, four unknown). For most of the cases (n=67) a cause was not determined by routine testing. Eighty-five submissions included placenta for microscopic examination of which 55...
The first calicivirus was described 75 years ago in California in a foot-
and-mouth--like epidemic in swine. Control measures were slaughter and
burial of all affected pigs. However, epidemic spread among swine
continued for 24 years, then the disease disappeared. The virus was
declared eradicated, but was re-discovered 16 years...
Channel evolution and influences of changing floodplain
characteristics, heterogenous bank materials, and altered flow regimes were
examined along the Willamette River, a large alluvial river in northwestern
Oregon. The Willamette River is composed of a series of geomorphically
diverse reaches, which have each evolved uniquely in the century following
Euro-American...
Increased water temperatures and thermal loading due to anthropogenic inputs has
been shown to negatively impact the lifecycles of aquatic organisms in riverine
systems (Poole and Berman 2001; Hannah, Malcolm et al. 2004; Quinn, Gagne et al.
2004). The studies enclosed in this thesis evaluate and quantify the heat fluxes...
Devonian carbonate rocks of the southern Hot Creek Range reflect a shift to the east of the carbonate shelf edge and a progressively deeper-water lithotope from late
Early Devonian to early Middle Devonian time. Lower Devonian mudstones of the McColley Canyon Formation were deposited on an open shelf, dolomitized, and...
Analysis of import trade since 1976 shows that forests of the Pacific Northwest provide
Japan with the largest share of pine mushrooms (Tricholoma spp.) outside of East Asia.
To determine whether North American pine mushrooms (Tricholoma magnivelare (Peck)
Redhead) merit more intensive management in the southern Cascade Range, a major...
The faculty and staff at Oregon State University Libraries and Press made a conscious decision in 2011 to proactively set expectations for civil behaviors of those that work in and make use of the library. We wanted to make sure we maintained a safe work and study environment. Influencing factors...
Eight Tertiary geologic units crop out in the Seaside-Young's River Falls area, including late Oligocene to early Miocene Oswald West mudstones; Angora Peak sandstone and Silver Point members of the middle Miocene Astoria Formation, and middle Miocene Depoe Bay and Cape Foulweather Basalts. Three new lithologically distinct
units, the 'J'...
The Summer Coon intrusive center is located seven miles
north of Del Norte, Colorado, on the eastern edge of the San Juan
Mountains. The intrusive center is the core of a dissected calcalkaline
composite volcano of middle Oligocene age. The Summer
Coon rocks belong to the Conejos Formation which is...
The Summer Coon intrusive center is located seven miles
north of Del Norte, Colorado, on the eastern edge of the San Juan
Mountains. The intrusive center is the core of a dissected calcalkaline
composite volcano of middle Oligocene age. The Summer
Coon rocks belong to the Conejos Formation which is...
Background: Pseudomonas fluorescens SBW25 has been extensively studied because of its plant growth promoting properties and potential as a biocontrol agent. The genome of SBW25 has been sequenced, and among sequenced strains of pseudomonads, SBW25 appears to be most closely related to P. fluorescens WH6. In the authors' laboratories, WH6...
As IAMSLIC members will recall, in 1990 Stephanie Haas questioned ASFA’s supremacy in marine science libraries and found “potential pitfalls” if relying on a single database to adequately discover the relevant literature (Haas 1990). We still question the best way to access the literature in our multidisciplinary field. Patrons and...
This bibliography contains over 1,000 references on health issues in Borneo, organized under 18 topical headings. These reports relate to the past and present health of all the large ethnic groups on the island but few of the smaller ones, since they have received less attention. The bibliography contains textual...
A 5km swath-width SeaMARC I sidescan sonar survey, conducted over
the zone of overlap between the southern rift zone of Axial Volcano and the northern
tip of the Vance spreading segment on the Juan de Fuca Ridge (between 45°24'N
and 45°50'N latitude), was analyzed to locate the present position of...
This study describes the surface configuration of
Goodhue County and attempts to determine the origin of that
configuration. The research has a descriptive portion--an
objective examination of land surface configuration and the
composition and distribution of rock material underlying
that surface, and a theoretical portion--a speculative
examination of the factors...
Numerous investigative reports have cited the problems of inefficient food aid distribution by various international disaster relief agencies. These problems not only deprive the disaster victims of life giving support, but can also discourage potential sources of contributions. Lack of a feedback process has been attributed as a cause of...
While libraries are using increasingly sophisticated metrics to determine electronic resources’ usefulness, impact and cost effectiveness, much of this data reflects past usage. More nuanced information is still needed to guide collection managers’ decisions about which content to purchase, borrow or deselect. To fill this gap, librarians at OSU Libraries...
The Murderers Creek Area, within the Aldrich Mountain province of
northeast Oregon, originated in an arc-trench gap during Permian-early
Triassic time. The area represents a small portion of a forearc
depositional basin and tectonic highland which borders the basin along
its seaward margin. The trench associated with an east dipping...
Positively-charged gold nanoparticles (0.8-nm core diameter) reduced yeast
survival, but not growth, at a concentration of 10 to 100 μg/ml. Among 17 resistant
deletion mutants isolated in a genome-wide screen, highly significant enrichment
was observed for respiration-deficient mutants lacking genes encoding proteins
associated with the mitochondrion.
This PowerPoint presentation contains selected images pertaining to reforestation and vegetation management in the Pacific Northwest region of the United States. Viewers are welcome to use this PowerPoint or any images contained therein. The material has been assembled during much of the author’s career, so proper attribution would be appreciated...
Small crack fatigue is a widely recognized problem in the fatigue of materials; however, there has been limited progress in developing methods for predicting small crack fatigue behavior. In this paper, small crack effects due to crack bridging are addressed. A fatigue threshold R-curve was measured for a 99.5% pure...
Habitat Conservation Plans (HCPs) have become a key instrument for implementation of the Endangered Species Act (ESA) on private land. However, there is no systematic analysis of their effectiveness in promoting endangered species recovery. This paper is the first to provide a comprehensive analysis of the impact of HCPs on...
The primary goal of this study is to assess the impact of a subduction component
added to the mantle wedge beneath the Oregon Cascades to the composition and fO2 of
primitive Cascade basalts. Olivine-hosted melt inclusions from compositionally diverse
basalts across the Cascade arc (~100 km) are utilized in an...
Oregon is the number one producer of cool-season grass seed in the United
States. The center of the grass seed industry of Oregon is located in the Willamette
Valley, where about 470,000 acres of seed are grown. Innovative grass seed growers
of the area are beginning to implement precision agriculture...
The Middle and West Forks of Little Sheep Creek in the southern Tendoy Range have incised valleys across Cenozoic structural features exposing strata that range in age from the Mississippian to the Neoene. Paleozoic strata are 1,349 m thick and belong to the Mission Canyon Limestone, the Big Snowy, Amsden,...
The thesis area is located in the Blue Mountains of northeast Oregon. Pre-Tertiary and Cenozoic rocks, divided on the basis of age and tectonic history, are exposed along the eroded crest of the Blue Mountain anticline. Permian (?) metasedimentary rocks probably correlate with the Elkhorn Ridge Argillite, and consist mainly...
The purpose of this book is to
provide you with a bit more information about the organisms maintained at the ASLC so that you
may deepen your understanding and appreciation of them.
However, as a prelude to the more species-specific information contained in this document, there
are three short chapters...
Subsurface mapping was used to determine the structure andgeologic history of the South Cuyama dome and part of the Russellfault in the South Cuyama oil field area. Deformed Late Cretaceousand or early Tertiary marine strata are unconformably overlain bythe late Oligocene to early Miocene Vaqueros Formation (QuailCanyon Sandstone Member, Soda...