Index Catalog // ScholarsArchive@OSU

Fire history, fire regimes, and development of forest structure in the central western Oregon Cascades

Creator:: Weisberg, Peter J.
Abstract:: Fire history and fire regimes were reconstructed for a 450 km² area in the central western Oregon Cascades, using tree-ring analysis of fire scars and tree origin years at 137 sampled clearcuts. I described temporal patterns of fire frequency, severity, and size, and interpreted topographic influences on fire frequency and...
Resource Type:: Dissertation

Effects of input and redistribution processes on in-stream wood abundance and arrangement in Lookout Creek, western Cascades Range, Oregon

Creator:: Dreher, David Marshall
Abstract:: This study explored how selected input and redistribution processes affect the amount and arrangement of in-stream wood within the 64 km2 Lookout Creek watershed in the Andrews Forest, western Cascade Range, Oregon. A longitudinal inventory of in-stream wood was conducted over approximately 20 km of stream length in 2nd to...
Resource Type:: Masters Thesis
Full Text:: Cascade Range, Oregon. ABSTRACT APPROVED: ----------------------~ Frederick J. Swanson This study

Debris flows and flood disturbance in small, mountain watersheds

Creator:: Snyder, Kai U.
Abstract:: This study examined debris flows occurring in a 125 km² study area in the Blue River watershed in the western Cascade Mountains of Oregon over a 50-year period. Debris flow occurrence was found to be concentrated in a distinct zone of high activity occupying approximately half of the study area,...
Resource Type:: Masters Thesis
Full Text:: :~----+---------------------- / Frederick J. Swanson This study examined debris flows occurring in a 125 km2 study area in the Blue

Sediment routing in a small watershed in the blast zone at Mount St. Helens, Washington

Creator:: Smith, Richard D. (Richard Dean), 1950-
Abstract:: A descriptive model of the routing of sediment that was delivered to the study area by the 1980 eruptions of Mount St. Helens has been developed. On hillslopes this sediment was distributed among three major storage compartments: 1) the tephra profile, 2) primary storage, and 3) secondary storage. The most...
Resource Type:: Masters Thesis
Full Text:: : ctedrick J. Swanson A descriptive model of the routing of sediment that was delivered to the study area

Effects of earthflows on stream channel and valley floor morphology western Cascade Range, Oregon

Creator:: Vest, Sarah B.
Abstract:: Slow moving earthflows (0.1 15 m/yr.) may constrict valley floors and directly impinge on stream channels. Earthflows that move laterally into channels deliver organic and inorganic material to the stream from the earthflow toe. If the amount and particle size of this material is too large to be removed by...
Resource Type:: Masters Thesis
Full Text:: privacy Frederick J. Swanson Slow moving earthflows (0.1 15 m/yr.) may constrict valley floors and

Modeling slope stability uncertainty : a case study at the Andrews Experimental Forest

Creator:: Murillo, Michelle L.
Abstract:: A simple debris-slide model, employing a digital elevation model (DEM) and geological data, was used in a geographic information system (GIS) to map slope stability in the Andrews Experimental Forest, located in the western Cascade Range in Oregon, USA. To evaluate the contribution of error in elevation to the uncertainty...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: ------------,----------------- \ Frederick J. Swanson A simple debris-slide model

Controls on movement of selected landslides in the Coast Range and western Cascades, Oregon

Creator:: Wong, Bernard Bong-Lap
Abstract:: The movement characteristics of five landslides are compared and interpreted based on records of approximately 10-years duration. Condon landslide in the Oregon Coast Range has consistently exhibited brief (1 - 8 days) movement episodes in wet winter months, separated by long periods of no movement. The translatory movement is probably...
Resource Type:: Masters Thesis
Full Text:: . Frederick J. Swanson The movement characteristics of five landslides are compared and interpreted based on

Revegetation-microhabitat relations in the blast zone of Mount St. Helens

Creator:: Gallant, Alisa L.
Abstract:: The Mount St. Helens eruption of May 18, 1980, offered an excellent setting for evaluating early response of ecosystems to disturbance. Prior to the eruption, the area was densely forested with fir, hemlock, and Douglas-fir, and various understory species. During the course of the eruption, hillslopes within a 180 degree...
Resource Type:: Masters Thesis
Full Text:: of Mount St. Helens Redacted for Privacy Abstract approved: Frederick J. Swanson The Mount St

Flood history and sedimentation at the mouth of Redwood Creek, Humboldt County, California

Creator:: Ricks, Cynthia L.
Abstract:: Since the early 1950's, the distribution of sediment at the mouth of Redwood Creek has been altered by the effects of channel aggradation and channelization along the lower reach. Severe flooding in 1953, 1955, and 1964 caused bank erosion, landsliding, and channel geometry changes along Redwood Creek. The increased sediment...
Resource Type:: Masters Thesis
Full Text:: Redwood Creek, Humboldt County, California Abstract Approved: Redacted for Privacy Dr Frederick J

The quantification of soil mass movements and their relationship to bedrock geology in the Bull Run Watershed, Multnomah and Clackamas Counties, Oregon

Creator:: Schulz, Michael Gerhard
Resource Type:: Masters Thesis

Landslide occurrence in the Elk and Sixes River basins, southwest Oregon

Creator:: McHugh, Margaret H.
Abstract:: Timber management of coastal watersheds in southwest Oregon has been complicated by the need to protect anadromous fish habitat from accelerated stream sedimentation resulting from management activity. The rugged terrain of the Elk and Sixes River basins is underlain by the complex geological province of the Klamath Mountains, in which...
Resource Type:: Masters Thesis

Mass movement dynamics, geomorphology and their relationship to geology in the North Fork Siuslaw drainage basin, Oregon Coast Range

Creator:: Graham, James Duncan, 1954-
Resource Type:: Masters Thesis

Relations between geology and mass movement features in a part of the East Fork Coquille River watershed, southern Coast Range, Oregon

Creator:: Lane, Jeffrey W.
Abstract:: Various types of mass movement features are found in the drainage basin of the East Fork Coquille River in the southern Oregon Coast Range. The distribution and forms of mass movement features in the area are related to geologic factors and the resultant topography. The Jurassic Otter Point Formation, a...
Resource Type:: Masters Thesis

Patterns of nitrogen fluxes in watersheds of the H.J. Andrews Experimental Forest, OR

Creator:: Vanderbilt, Kristin Lynn, 1967-
Abstract:: Seasonal and annual patterns of N fluxes and concentrations in streamwater in six conifer-dominated watersheds at the H.J. Andrews Experimental Forest, OR, were studied to gain insight into the factors that influence N retention in this ecosystem. Processes affecting N flux in streamwater differed between organic (DON) and inorganic (DIN;...
Resource Type:: Dissertation

Flux of ground water and nitrogen through the floodplain of a fourth-order stream

Creator:: Wondzell, Steve
Abstract:: Changes in the concentrations of dissolved ammonia (NH4+1), nitrate (NO3-1), organic nitrogen (DON) were monitored along ground water flow paths to determine the importance of the ground water system to the stream nitrogen budget. The study site was located on a wide floodplain along a fourth-order stream in the Oregon...
Resource Type:: Dissertation

Geology, geomorphology, and dynamics of mass movement in parts of the Middle Santiam River drainage basin, western Cascades, Oregon

Creator:: Hicks, Bryan A.
Abstract:: Landforms sculpted by mass movements comprise much of the landscape in the Middle Santiam study area. Bedrock in the area is mostly basalt and andesite flows and varied volcaniclastic rocks of the Little Butte Volcanic Series of Oligocene and early Miocene age, unconforniably overlain by andesite flows and tuffs of...
Resource Type:: Masters Thesis

Age structure, developmental pathways, and fire regime characterization of Douglas-fir/western hemlock forests in the central western Cascades of Oregon

Creator:: Tepley, Alan J.
Abstract:: Descriptions of the fire regime in the Douglas-fir/western hemlock region of the Pacific Northwest traditionally have emphasized infrequent, predominantly stand-replacement fires and an associated linear pathway of stand development, where all stands proceed along a common pathway until reset by the next fire. Although such a description may apply in...
Resource Type:: Dissertation
Full Text:: approved: _____________________________________________________________________ Frederick J

Historical fire regime in the Little River watershed, southwestern Oregon

Creator:: Van Norman, Kelli J.
Abstract:: Disturbances are a prevalent and important part of ecosystems. Many landscape patterns that we find today were created, maintained, and changed by natural disturbance regimes. This is especially true for fire, which has historically been a common, natural disturbance in the western U.S forests and grasslands and many other parts...
Resource Type:: Masters Thesis

Streamflow and bedload transport in an obstruction-affected, gravel-bed stream

Creator:: Smith, Richard D. (Richard Dean), 1950-
Abstract:: The mechanisms of pool maintenance were investigated in a small (width = 10 m, drainage area = 18 km2), gravel-bed stream where pools are commonly associated with large, in-channel obstructions. Measurements of boundary shear stress, scour and fill of the stream bed, and bedload transport rate and grain-size distribution were...
Resource Type:: Dissertation

Influence of steroids and gonadotropin releasing hormone on serum luteinizing hormone levels in prepubertal castrate Holstein bulls

Creator:: McCarthy, Michael Scott
Resource Type:: Masters Thesis
Full Text:: Lloyd Swanson Factors involved in regulating the release of luteinizing hormone (LH) from the anterior

Monitoring for Climate Adaptation in Family Forests: A Framework for Inter-Generational Monitoring and Adaptive Management

Creator:: Radcliffe, Kaci
Abstract:: Climate change will require families to withstand and adapt to potentially novel impacts in their forests, requiring both ecological and social resiliency. When facing a future of complex and uncertain conditions, family forest owners need more information on the magnitude and direction of change, which can be best accomplished through...
Resource Type:: Capstone Project
Full Text:: Acknowledgments I want to thank Dr. Elizabeth Swanson, Dr. Mindy Crandall, and Dr. John Punches for their

The effects of stand thinning on soil erosion rates at Jim's Creek in the Willamette National Forest, Oregon

Creator:: McFadden, Andrew K.
Abstract:: Surface sediment transport is an important geomorphic process which can be significantly altered by management activities in forested ecosystems. Disturbance of the soil surface may result in increased sediment delivery to fish bearing streams and degradation of soil structure. Selective thinning and low impact yarding techniques were utilized in an...
Resource Type:: Capstone Project
Full Text:: Swanson for his expertise in regards to geomorphic process in forested systems and for the technical

Sediment reservoir dynamics on steepland valley floors : influence of network structure and effects of inherited ages

Creator:: Frueh, Walter Terry
Abstract:: Sediment deposit ages inferred from radiocarbon dating of stream bank material were used to estimate residence times of valley-floor deposits in headwater valleys of the Oregon Coast Range, USA. Inherited ages of radiocarbon-dated material, i.e., time between carbon fixation in wood and its incorporation in a sediment deposit, can result...
Resource Type:: Masters Thesis
Full Text:: for all stages of my graduate work. Committee members Fred Swanson and Julia Jones provided key

Recent geomorphic history in the area of experimental watersheds 1, 2, 3, 9, and 10, H. J. Andrews Forest

Creator:: Swanson, Frederick J. (Frederick John), 1943-, James, Michael E., U.S. International Biological Program. Coniferous Forest Biome, and University of Washington
Abstract:: Studies in the lower Lookout Creek-Blue River area have revealed a geomorphic history including glaciation and the development of three alluvial surfaces, presently active alluvial cones and older, deeply dissected cone remnants. Results are based on landform mapping, analysis of the types and distributions of surficial sediments, and the distribution...
Resource Type:: Technical Report
Full Text:: AREA OF EXPERIMENTAL WATERSHEDS 1, 2, 3, 9, AND 10, H. J. ANDREWS FOREST F. J. Swanson and M. E

Fire history and pattern in a Cascade Range landscape

Creator:: Morrison, Peter H. and Swanson, Frederick J.
Abstract:: Fire history from years 1150 to 1985 was reconstructed by analyzing forest stands in two 1940-hectare areas in the central-western Cascade Range of Oregon. Serving as records for major fire episodes, these stands revealed a highly variable fire regime. The steeper, more dissected, lower elevation Cook-Quentin study area experienced more...
Resource Type:: Technical Report

The effects of the Mazama tephra-falls : a geoarchaeological approach

Creator:: Matz, Stephan E.
Abstract:: About 7,000 years ago two major tephra-falls blanketed the Pacific Northwest in volcanic ash. These two tephra-falls, identified as the Llao and climatic tephra-falls, were a part of the eruptive events that led up to the collapse of Mount Mazama to form Crater Lake in the southern Oregon Cascades. The...
Resource Type:: Masters Thesis
Full Text:: would like to begin by expressing my gratitude to my committee members. Dr. Frederick Swanson, Dr

Public acceptance of disturbance-based forest management : a study of the attentive public in the Central Cascades Adaptive Management Area

Creator:: Mallon, Angela L.
Abstract:: Growing emphasis on ecosystem and landscape-level forest management across North America has spurred an examination of alternative management strategies which focus on emulating dynamic natural disturbance processes, particularly those associated with forest fire regimes. This topic is the cornerstone of research in the Blue River Landscape Study (BRLS) taking place...
Resource Type:: Masters Thesis
Full Text:: asked for more in an advisor. I am also grateful to Fred Swanson, John Bliss, and Arne Skaugset for

Infiltration, soil erosion, nitrogen loss and soil profile characteristics of Oregon lands occupied by three subspecies of Artemisia tridentata

Creator:: Swanson, Sherman R.
Abstract:: Infiltration, soil erosion, nitrogen loss and soil profile characteristics were measured on 36 sites representing land occupied by Artemisia tridentata ssp. tridentate, wyomingensis, and vaseyana. Infiltration, soil erosion, and nitrogen loss were strongly correlated but highly variable. Soil loss, but not infiltration or nitrogen loss was significantly different between subspecies....
Resource Type:: Dissertation
Full Text:: . Swanson AN ABSTRACT OF THE THESIS OF for the degree of Doctor of Philosophy in Rangeland Resources

Geomorphic controls on hyporheic exchange flow in mountain streams

Creator:: Kasahara, Tamao
Abstract:: Simulations of stream-subsurface water exchange (hyporheic exchange) using a three-dimensional steady state groundwater flow model and a particle tracking model in unconstrained and constrained reaches of small (2nd-order) and intermediate (5th-order) mountain streams were conducted to estimate the effects of geomorphic features on the extent, volume and residence time of...
Resource Type:: Masters Thesis
Full Text:: ,,,._ ~~o-~-~-r-~e-1_1 ________ _ Frederick J. Swanson Simulations of stream-subsurface water exchange

A study of in stream complexity in three Oregon Coast Range watersheds

Creator:: Anderson, Paul Khalil
Abstract:: This study investigates patterns of physical structure organization in stream networks. In particular, it seeks to describe patterns of wood, boulders, pools and slope that are evident in stream channels and to determine whether patterns of these elements are influenced by network-level controls. The four in-stream parameters were combined to...
Resource Type:: Masters Thesis

Post-fire tree establishment and early cohort development in conifer forests of the western Cascades of Oregon, USA

Creator:: Tepley, Alan J., Swanson, Frederick J., and Spies, Thomas A.
Abstract:: Early‐seral ecosystems make important contributions to regional biodiversity by supporting high abundance and diversity of many plant and animal species that are otherwise rare or absent from closed‐canopy forests. Therefore, the period of post‐fire tree establishment is a key stage in forest stand and ecosystem development that can be viewed...
Resource Type:: Article
Full Text:: Oregon, USA ALAN J. TEPLEY,1,3,� FREDERICK J. SWANSON,2 AND THOMAS A. SPIES2 1Departments of

Fire-mediated pathways of stand development in Douglas-fir/ western hemlock forests of the Pacific Northwest, USA

Creator:: Tepley, Alan J., Swanson, Frederick J., and Spies, Thomas A.
Abstract:: Forests dominated by Douglas-fir and western hemlock in the Pacific Northwest of the United States have strongly influenced concepts and policy concerning old-growth forest conservation. Despite the attention to their old-growth characteristics, a tendency remains to view their disturbance ecology in relatively simple terms, emphasizing infrequent, stand-replacing (SR) fire and...
Resource Type:: Article
Full Text:: / western hemlock forests of the Pacific Northwest, USA ALAN J. TEPLEY,1,3 FREDERICK J. SWANSON,2 AND

Fire severity and vegetation response to fire in riparian areas of the Biscuit and B&B Complex Fires, Oregon

Creator:: Halofsky, Jessica E.
Abstract:: Fire is the dominant disturbance process in western U.S. forests, and although effects of fire in upland forests are relatively well-studied, there is little information about fire effects on riparian forests, critical areas of the landscape for both habitat and water quality. This dissertation examines different aspects of fire effects...
Resource Type:: Dissertation
Full Text:: sideslope Douglas-fir forests. Forest Ecology and Management 175:31-47. Gregory, S. V., F. J. Swanson

Mixed-Severity Fire Effects on Biological Legacies and Vegetation Response in Pseudotsuga Forests of Western Oregon's Central Cascades, USA

Creator:: Dunn, Christopher J.
Abstract:: Mixed-severity fire occurrence is increasingly recognized in Pseudotsuga forests of the Pacific Northwest, but questions remain about how tree mortality varies, and forest structure is altered, across the disturbance gradient observed in these fires. Therefore, we sampled live and dead biological legacies at 45 one ha plots, with four 0.10...
Resource Type:: Dissertation
Full Text:: Forestry. Dr. Frederick J. Swanson deserves my greatest and upmost respect for helping me develop my

Effects of volcanic and hydrologic processes on forest vegetation: Chaitén Volcano, Chile

Creator:: Swanson, Frederick J., Jones, Julia A., Crisafulli, Charles M., and Lara, Antonio
Abstract:: The 2008-2009 eruption of Chaitén Volcano (Chile) involved a variety of volcanic and associated hydrologic processes that damaged nearby forests. These processes included coarse (gravel) and fine (silt to sand) tephra fall, a laterally directed blast, fluvial deposition of remobilized tephra, a variety of low-temperature mass-movement processes, and a pyroclastic...
Resource Type:: Article
Full Text:: : Chaitén Volcano, Chile Frederick J. Swanson1, Julia A. Jones2, Charles M. Crisafulli3, Antonio Lara4 1

Possible Autocrine/Paracrine Action of Progesterone in the Ovine Corpus Luteum

Creator:: Smallman, Mary A.
Abstract:: The objective of the present research was to determine, by use of the progesterone receptor antagonist RU-486, whether progesterone by autocrine/paracrine action suppresses phosphatidylinositol hydrolysis, and thus, the production of prostaglandin F2a during the midluteal phase of the estrous cycle in ewes. Two experiments were performed. Experiment 1 consisted of...
Resource Type:: Masters Thesis

Role of hypothalamic biogenic amines in the release of luteinizing hormone in the ewe

Creator:: Wheaton, Jonathan Edward
Abstract:: The role of hypothalamic biogenic amines (norepinephrine, dopamine and serotonin) in regulating the release of luteinizing hormone (LH) in the ewe was investigated. Eleven experiments utilizing mature crossbred or Hampshire ewes were conducted to determine the ability of exogenous 17β-estradiol and various pharmacological agents to alter the levels of hypothalamic...
Resource Type:: Dissertation

Effects of intramuscular administration of selenium in dairy cattle on levels of erythrocyte glutathione peroxidase and blood selenium

Creator:: Hoffman, Charles Chase
Resource Type:: Masters Thesis
Full Text:: : f Lloyd Swanson Three experiments were designed to examine the response of red blood cell (RBC

The relationship of prepartum body condition score to postpartum colostrum quality and milk yield and composition in polypay sheep

Creator:: Al-Sabbagh, Tariq Ashour
Resource Type:: Masters Thesis
Full Text:: Yield And Composition in Polypay Sheep. Abstract approved. Lloyd Swanson Two experiments

In vitro estradiol-induced protein synthesis in the endometrium of cyclic and steroid-treated ovariectomized ewes

Creator:: Allen, Renee Allana
Abstract:: The ability of ovine endometrium incubated in vitro with estradiol -17(3 to synthesize a specific induced protein (IP) was studied. Endometrium from cycling, pregnant and ovariectomized ewes was used. Twelve ewes were allotted in equal numbers to be sacrificed on days 0 (estrus), 3, 6, or 10 of the estrous...
Resource Type:: Masters Thesis
Full Text:: for Privacy Abstract approved: 'Lloyd Swanson The ability of ovine endometrium incubated in vitro

Optimizing Reservoir Operations to Adapt to 21st Century Expectations of Climate and Social Change in the Willamette River Basin, Oregon

Creator:: Moore, Kathleen M.
Abstract:: Reservoir systems in the western US are managed to serve two main competing purposes: to reduce flooding during the winter and spring, and to provide water supply for multiple uses during the summer. Because the storage capacity of a reservoir cannot be used for both flood damage reduction and water...
Resource Type:: Dissertation
Full Text:: Swanson, and Andreas Schmittner for taking an interest in my research and for providing constructive

Interactive visual analysis promotes exploration of long-term ecological data

Creator:: Pham, Tuan, Jones, Julia A., Metoyer, Ronald, Swanson, Frederick, and Pabst, Robert
Abstract:: Long-term ecological data are crucial in helping ecologists understand ecosystem function and environmental change. Nevertheless, these kinds of data sets are difficult to analyze because they are usually large, multivariate, and spatiotemporal. Although existing analysis tools such as statistical methods and spreadsheet software permit rigorous tests of pre-conceived hypotheses and...
Resource Type:: Article
Full Text:: ecological data TUAN PHAM,1,� JULIA JONES,2 RONALD METOYER,1 FREDERICK SWANSON,3 AND ROBERT PABST4 1School

Electronic pulse generator for thyratron control

Creator:: Swanson, Wendell Verner
Resource Type:: Masters Thesis
Full Text:: LiiCTRONIC PULSE GiNRATOR FOR THYRATRON CONTROL NDLL V1UiR SWANSON A TEIS submitted to OREGON STÂTÌ

The effect of dissolved oxygen concentration on the activated sludge process

Creator:: Swanson, Gregory R.
Abstract:: Since the introduction of pure oxygen activated sludge systems in the late 1960's, proponents have claimed several advantages resulting from the elevated dissolved oxygen (DO) levels maintained. However, numerous comparative studies have failed to produce a consensus of professional opinion regarding the validity of these claimed advantages. The purpose of...
Resource Type:: Dissertation
Full Text:: Activated Sludge Process AN ABSTRACT OF THE THESIS OF Gregory R. Swanson for the degree of Doctor of

Aspects of the foraging ecology of humpback whales (Megaptera novaeangliae) in Frederick Sound and Stephens Passage, Southeast Alaska

Creator:: Szabo, Andrew R.
Abstract:: The North Pacific humpback whale (Megaptera novaeangliae) population has been increasing at an average annual rate of ~6% since the early 1990s. In northern Southeast Alaska alone, there are now more whales than estimated for the entire North Pacific several decades ago. An understanding of how this growing population is...
Resource Type:: Dissertation
Full Text:: : Aspects of the foraging Ecology of Humpback Whales (Megaptera novaeangliae) in Frederick Sound and

Identification of potential new biomarkers of oxygenated polycyclic aromatic hydrocarbon (OPAH) exposures in zebrafish.

Creator:: Swanson, Annika J.
Abstract:: Oxygenated polycyclic aromatic hydrocarbons (OPAHs) are a class of environmentally prevalent compounds with little known information on their effect in vivo. In a recent study conducted using zebrafish as a model, 38 OPAHs were screened for toxicity. This investigation focuses on two of these OPAHs, 7,12-B[a]AQ and BEZO. Both 7,12-B[a]AQ...
Resource Type:: Honors College Thesis
Full Text:: ABSTRACT OF THE THESIS OF Annika J. Swanson for the degree of Honors Baccalaureate of Science in

Establishment and dynamics of methane-oxidizing microbial communities in marine sediments

Creator:: Klasek, Scott A.
Abstract:: Marine sediments are vast sources and reservoirs of methane, a potent greenhouse gas. Most of this methane is anaerobically oxidized by archaea before it can reach the overlying ocean, though the efficiency of this process often depends on methane fluxes and mechanisms of fluid transport. Anaerobic methanotrophic archaea, or ANME,...
Resource Type:: Dissertation
Full Text:: : ____________________________________________________________ Frederick S. Colwell Abstract Marine sediments are vast sources and reservoirs of methane

Genetic and physiological relationships of growth hormone and growth in goats

Creator:: Simms, Danny Dale
Abstract:: An F₁ population resulting from mating pygmy and normal goats (local commercial breeds) was crossed to give an F₂ population. Analysis of wither height and body weight indicated that the F₂ population was intermediate between the parental types (pygmy and normal) with little overlap of phenotypic values for body size...
Resource Type:: Dissertation
Full Text:: go to Dr. Lloyd Swanson for his competent advice on all facets of this research and assistance with

Comparing Sediment Microbial Communities of Arctic Beaver Ponds to Tundra Lakes and Streams

Creator:: Shannon, Kelly
Abstract:: In recent decades the habitat of North American beaver (Castor canadensis) has expanded from boreal forests into pan-Arctic tundra ecosystems. It is unknown how the advance of beavers into Arctic watersheds will impact microbial communities responsible for the mineralization of organic matter (OM), which has implications for carbon cycling. To...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: ______________________________________________________ Frederick Colwell In

Monoclonal antibodies to 5'-deoxy-5' methylthioadenosine phosphorylase

Creator:: Parker, Ricardo Jerome
Abstract:: 5'-Deoxy-5'-methylthioadenosine phosphorylase catalyzes the phosphorolytic cleavage of 5'-deoxy-5'-methylthioadenosine to form 5'-deoxy-5'-methylthioribose-1-phosphate and adenine in mammalian cells and plays an important role in methionine and purine salvage. The enzyme is abundant in normal tissues and in cell lines derived from normal cells. However, several malignant tissues and cell lines have been...
Resource Type:: Dissertation
Full Text:: phosphorylase AN ABSTRACT OF THE THESIS OF Ricardo J. Parker for the degree of Doctor of Philosophy in

Experiments on the Hydraulics and Swimming Responses of Juvenile Chinook Salmon Encountering a Floating Guidance Structure

Creator:: Swanson, Samuel T.
Abstract:: Floating guidance structures are intended to promote safe in-stream passage for juvenile salmon migrating downstream through reservoirs. However, the ability of an engineered structure to guide fish to safe passage has been primarily tested either after large-scale implementation in existing reservoirs or in laboratory studies and computer simulations without live...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Samuel Talbot Swanson

Dairy Cattle Nutrition and its Effect on Production, Milk, and Human Health

Creator:: Swanson, Katherine L.
Abstract:: As the world population continues to grow we must look for smarter and more sustainable ways to feed everyone. Milk is the first food humans consume and is a good source of protein, fat, and carbohydrates. The following studies sought to determine the effect of feeding blackberry pomace as a...
Resource Type:: Dissertation
Full Text:: Swanson for the degree of Doctor of Philosophy in Animal Science presented on June 8, 2018. Title

The effects of cyclopropenoid fatty acids on the growth, blood lipids, and viral infectivity of White Leghorn chickens

Creator:: Swanson, Joy Emily
Abstract:: Three studies were designed to evaluate the promoting effect of cyclopropenoid fatty acids (CPFA) on avian myeloblastosis virus (AMV) infection in White Leghorn chickens. In the first study effects on growth parameters, blood serum and erythrocyte lipid composition of White Leghorn chickens were investigated at 100 ppm and 300 ppm...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Joy Emily Swanson for the degree

Equivalence of finite measures

Creator:: Swanson, Leonard George
Abstract:: See pdf
Resource Type:: Dissertation
Full Text:: LEONARD GEORGE SWANSON for the DOCTOR OF PHILOSOPHY (Name) (Degree) in MATHEMATICS presented on July 22

Systematic review of residual toxicity studies of pesticides to bees and comparison to language on pesticide labels using data from residual toxicity studies and USEPA published values

Creator:: Swanson, Leah
Abstract:: BACKGROUND. Residues of pesticides on crops can result in mortality to foraging bees. The likelihood of mortality can be mitigated by applying pesticides in the evening so that their residues dissipate by the following morning when bees resume foraging. The dissipation rates of different pesticides, or their residual toxicity, is...
Resource Type:: Honors College Thesis
Full Text:: and USEPA published values by Leah Swanson A THESIS submitted

A rubidium atomic funnel

Creator:: Swanson, Thomas B.
Abstract:: A low velocity, low temperature beam of atoms is produced from a two-dimensional magneto-optic trap known as an atomic funnel. The funnel provides simultaneous spatial and velocity compression of atoms and will provide a source for a three-grating atomic interferometer. Rubidium atoms from an oven are slowed by chirped cooling...
Resource Type:: Dissertation
Full Text:: Thomas B. Swanson for the degree of Doctor of Philosophy in Physics presented on July 11, 1995. Title

Effects of the anticarcinogen indole-3-carbinol on Xenobiotic metabolizing enzymes in rainbow trout

Creator:: Swanson, Hollie I.
Abstract:: Indole-3-carbinol (I3C) inhibits chemically induced tumor formation in rodents and rainbow trout. This study examines the effect of I3C and its analog, indole-3-acetonitrile (I3N) on xenobiotic-metabolizing enzyme systems. The modulation of these enzyme systems have been shown to have significant effects on the interaction of chemical carcinogens and cellular constituents....
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Hollie Isabel Swanson for the

Examination of location of schools to determine whether they have acquired the optimum site: the case of Crescent Valley High School

Creator:: Swanson, George A.
Abstract:: In selecting the site for a new school, a school district must consider four basic characteristics of a good site: size, physical features, location and costs. The size must be adequate to meet the state minimum standards and provide for future expansion. The physical features, soil, relief and slope should...
Resource Type:: Capstone Project
Full Text:: HAVE ACQUIRED THE OPTIMUM SITE: THE CASE OF CRESCENT VALLEY HIGH SCHOOL by GEORGE A. SWANSON A

Becoming an Empathetic Physician: A Look at Why Empathy Changes Throughout Medical Education

Creator:: Swanson, Emily A.
Abstract:: Though empathy has proven to be a vital component of the physician-patient relationship, recent studies have shown that medical students tend to lose empathy during their third year of medical school as they start interacting with patients for the first time. The main objective of this project was to find...
Resource Type:: Honors College Thesis
Full Text:: Changes Throughout Medical Education by Emily Anne Swanson A THESIS

The effect of oscillation and gas content on free convection from horizontal cylinders in water

Creator:: Swanson, Vernon Hugo
Resource Type:: Masters Thesis
Full Text:: lIERilON }IUGO SWANSON A THESIg subnltted to ORECON STATE UNIVERgITY tn partlal fulflll.nent of the

Determining readability by computer analysis using the Fourier transform to calculate the spatial frequencies of words

Creator:: Piepmeier, Karen Swanson
Abstract:: The black and white pattern formed when an individual word is printed on a page was analyzed by the Fourier transform. The Fourier transform produces a sequence of sinusodial functions, usually called spatial frequencies, whose amplitudes depend upon the particular pattern analyzed. These amplitudes were examined to determine if the...
Resource Type:: Dissertation

An evaluation of using the spiral model to teach media at Oregon State University

Creator:: Piepmeier, Karen Swanson
Abstract:: A decade after the School of Education at Oregon State University adopted a spiral model of curriculum for teacher education, a study was conducted to determine if Instructional Media, one thread of that model, was spiralled in the curriculum. A survey was conducted of graduating seniors, using a questionnaire to...
Resource Type:: Masters Thesis
Full Text:: Oregon State University AN ABSTRACT OF THE THESIS OF Karen Swanson Piepmeier for the degree of Master

A proposed Willamette River Greenway plan and ordinance for Linn County

Creator:: Swanson, Sherman R.
Abstract:: This paper includes the proposed "Willamette River Greenway" section of the Linn County Comprehensive Plan and "Criteria and Standards for Greenway Development Permits," the proposed implementing ordinance.
Resource Type:: Capstone Project
Full Text:: COUNTY SHERMAN R. SWANSON A RESEARCH PAPER submitted to THE DEPARTMENT OF GEOGRAPHY in partial

Ground control for aerial photography

Creator:: Swanson, Harry
Resource Type:: Undergraduate Thesis
Full Text:: Aerial Photography by Harry Swanson A Thesis Presented to the Faculty of the School of

Seasonal thermoregulation in the dark-eyed junco (Passeriformes: Junco hyemalis)

Creator:: Swanson, David Leslie
Abstract:: Winters in north-temperate climates impose high thermogenic demands upon small birds which are met by seasonal acclimatization. This thesis investigates the extent and mechanisms of seasonal acclimatization in darkeyed juncos (Junco hyemalis) inhabiting western Oregon. Although insulation is significantly increased in winter, acclimatization is primarily metabolic. Increased metabolism is required...
Resource Type:: Dissertation
Full Text:: (Passeriformes: Junco hyemalis) AN ABSTRACT OF THE THESIS OF David L. Swanson for the degree of Doctor of

Relationship of dietary crude protein to factors in uterine secretions and plasma in high producing postpartum dairy cows

Creator:: Jordan, Ellen Rae
Abstract:: Eighteen multiparous, high producing (7,836 kg 4% FCM) Holstein dairy cows were assigned randomly to iso- . caloric rations containing either 12 or 23% crude protein (CP) on day 40 postpartum. After a 10-day adaptation period, uterine secretion and blood samples were collected on the day of estrus (day 0-1),...
Resource Type:: Dissertation
Full Text:: PRODUCING POSTPARTUM DAIRY COWS Abstract approved: Redacted for Privacy Lioya v. Swanson Eighteen

In vitro hormonal and metabolic control of bovine mammary glucose 6-phosphate dehydrogenase activity

Creator:: Young, Allen Jack
Abstract:: Two studies were conducted to determine the in vitro metabolic and hormonal effects on glucose 6-phosphate dehydrogenase activity (G6PD) in bovine mammary explants. Study I was conducted to determine the effects of palmitoyl CoA (5 and 25 uM), acetate (1 and 10 mM), spermidine (0.4 mM) and putrescine (0.4 mM)...
Resource Type:: Dissertation
Full Text:: : Redacted for privacy Lloyd V. Swanson Two studies were conducted to determine the in vitro metabolic and

Fertility in the high-producing postpartum dairy cow as affected by dietary crude protein

Creator:: Jordan, Ellen Rae
Resource Type:: Masters Thesis
Full Text:: restricted energy diet. J. Anim. Sci. 46:1071. Swanson, L. V., H. D. Hafs and D. A. Morrow. 1972. Ovarian

Influence of maternal instinct stimulated by calf contact on the hormonal induction of lactation in the bovine

Creator:: Bel Isle, Dennis Marc
Abstract:: An experiment was conducted to determine the effect a newborn calf would have on initial success rate, lactation performance, infertility and progesterone levels during mammogenesis and lactogenesis in dairy cows undergoing hormonal inducement to lactate. Fourteen Holstein, Brown Swiss and Jersey infertile, non-lactating cows, loaned by Pacific Northwest dairymen, were...
Resource Type:: Masters Thesis
Full Text:: LACTATION IN THE BOVINE Redacted for privacy Lloyd V. Swanson An experiment was conducted to determine the

Relationships among rump and rear leg type traits and reproductive performance in Holsteins

Creator:: Shapiro, Leland Sanford
Abstract:: This study was conducted to determine the relationships among the linear type traits of rump angle, rump width, rump length, rear legs side view, rear legs position, rear legs rear view, tailhead, vulva angle, mobility, pasterns, foot angle, and toes with reproductive performance (days open and times bred) in Holstein...
Resource Type:: Dissertation
Full Text:: . LlUyd V. Swanson This study was conducted to determine the relationships among the linear type traits

The effect of photoperiod on milk production and prolactin in Holstein dairy cows

Creator:: Marcek, John M.
Abstract:: Fourteen multiparous Holstein cows were paired by stage of lactation and previous years milk yield and 14 Holstein first-calf heifers were paired by stage of lactation. One member of each pair was assigned to a 24L:OD or a 18L:6D photoperiod for 16 wk during winter 1981 (Experiment 1). A similar...
Resource Type:: Masters Thesis
Full Text:: PRODUCTION AND PROLACTIN IN HOLSTEIN DAIRY COWS Abstract approved: Redacted for Privacy Lloyd V. Swanson

The effects of exogenous follicle stimulating hormone on serum hormone concentrations and in vitro testicular responsiveness to gonadotropins in prepubertal bulls

Creator:: Meyers, Stuart Alan
Resource Type:: Masters Thesis
Full Text:: BULLS Abstract approved: Redacted for Privacy r Lloyd V. Swanson The effect=s of season and in vivo

The effects of the protein metabolites ammonia and urea on oocyte maturation, fertilization, and early embryo development, using an in vitro system

Creator:: Clark, Tina Marie
Resource Type:: Masters Thesis
Full Text:: . Fertilization, and Early Embryo Development. Using an In Vitro System. Approved: Lloyd V. Swanson This

The Ore bin ; Vol. 32 No. 2 (February 1970)

Creator:: Oregon. Dept. of Geology and Mineral Industries, Lange, Erwin F., Boggs, Sam, Swanson, Frederick J. (Frederick John), 1943-, Libbey, Fay Wilmott, 1882-, and Hoffman, Charles S.
Resource Type:: Journal
Full Text:: NORTHERN KLAMATH MOUNTAIN REGION, OREGON • Sam Boggs, Jr.* and Frederick J. Swanson* Abstract A unit of

A study of the effects of some medicinal agents on breeding problems of fur-bearing animals

Creator:: Fuhrman, Frederick A.
Resource Type:: Masters Thesis
Full Text:: ;fl ?.- J t' I, 1r1SI G Gunuq_9p o 1Çc pqotpui flIG OJI TI t 3.4 jo T-- UO3 ;-LIT3 Tr3 3:; --TT

Development and characterization of a model of glutamate and domoate toxicity in cultured rat cerebellar granule neurons

Creator:: Berman, Frederick W.
Abstract:: A model of acute glutamate- and domoate-induced toxicity was developed and characterized in cultured rat cerebellar granule cells (CGCs) using experimental conditions which preserve the voltage-dependency of NMDA receptor function. Glutamate, which is normally non-toxic to CGCs in physiologic media (pH 7.4), was shown to induce a cytotoxic response after...
Resource Type:: Dissertation
Full Text:: domoate toxicity in cultured rat cerebellar granule neurons AN ABSTRACT ON THE THESIS OF Frederick W

Geoarchaeology at Tseriadun (35CU7), Curry County, Oregon

Creator:: Anderson, Frederick C.
Abstract:: The continuation of geoarchaeological investigations at Tseriadun (35CU7) contributes to the understanding of the site's depositional history and the associated environments, thereby identifying the long term geomorphic change in the area and providing the environmental context for local human activity as it is reflected in the archaeological record. Meeting this...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Frederick C. Anderson for the

A suggested farm forestry curriculum for vocational agriculture

Creator:: Fowler, Frederick Allen
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Frederick Allen Fowler for the

Direct geoelectrical evidence of mass transfer at the laboratory scale

Creator:: Swanson, Ryan D., Singha, Kamini, Day-Lewis, Frederick D., Binley, Andrew, Keating, Kristina, and Haggerty, Roy
Abstract:: Previous field-scale experimental data and numerical modeling suggest that the dual-domain mass transfer (DDMT) of electrolytic tracers has an observable geoelectrical signature. Here we present controlled laboratory experiments confirming the electrical signature of DDMT and demonstrate the use of time-lapse electrical measurements in conjunction with concentration measurements to estimate the...
Resource Type:: Article
Full Text:: laboratory scale Ryan D. Swanson,1 Kamini Singha,2 Frederick D. Day-Lewis,3 Andrew Binley,4 Kristina

Characterization and modeling of black liquor char combustion processes

Creator:: Wag, Kaj J.
Abstract:: See pdf
Resource Type:: Dissertation

Persulfate oxidizable carbon as an engineering measure of organic pollutants in water

Creator:: Carswell, J. K. (John Keith), 1937-
Resource Type:: Masters Thesis
Full Text:: sincere th&ns are given to i4r, Frederick J. Burgess, As.ociate Professor of Civil Engineering, Oreon

Prediction of thermodynamic properties of aqueous electrolyte solutions

Creator:: Kim, Hee-taik
Abstract:: The research undertaken in this study deals with three topics related to the prediction of thermodynamic properties of electrolytes in aqueous solutions. In the first, Pitzer ion interaction parameters for 304 single electrolytes were evaluated from recently published osmotic coefficient data at 25°C by using multiple regression analysis to fit...
Resource Type:: Dissertation
Full Text:: . William J. Frederick, Jr., for his support, encouragement, and guidance that allow me to finish this

A microcomputer software package for simulation of non-ideal aqueous electrolyte systems at equilibrium

Creator:: Sinquefield, Scott A.
Abstract:: The non-ideal aqueous electrolyte simulator (NAELS) is composed of three major parts: a Newton-Raphson non-linear optimization program written by Weare, et al (1987); an activity coefficient subroutine for non-ideal electrolyte systems based on Pitzer's model; and an extensive, user expandable database. It is robust, stable, and requires neither thermodynamic data...
Resource Type:: Masters Thesis
Full Text:: approved: Redacted for Privcy / William J. Frederick The non-ideal aqueous electrolyte simulator (NAELS

Mechanism and equilibrium modeling of aluminosilicate scaling in alkaline media

Creator:: Gasteiger, Hubert A.
Abstract:: Problems with aluminosilicate scales in pulp and paper recycle streams create an interest in the formation mechanism and the chemical equilibrium of aluminosilicates. Evaluating solubility data from a system containing Na⁺ CI⁻, and OH⁻ ions as well as aluminium and silicon compounds, allowed to elucidate the characteristics of the aluminosilicate...
Resource Type:: Masters Thesis
Full Text:: Privacy Dean of Grad a e School 1 Date Thesis is Presented: October 3, 1988 Typed By: Meredith J

Sulfur species transformations and sulfate reduction during pyrolysis of kraft black liquor

Creator:: Sricharoenchaikul, Viboon
Resource Type:: Masters Thesis
Full Text:: Transformations and Sulfate Reduction During Pyrolysis of Kraft Black Liquor. Abstract approved: William J

Chemistry and chemical process studies of fluoride removal in a silicon wafer manufacturing wastewater treatment plant

Creator:: Laothumthut, Punnchalee
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: William J. Frederick Fluoride is discharged as the effluent in many chemical

Production relationships for the Oregon commercial fishing fleet

Creator:: Richardson, James Andrew
Abstract:: Fishing firms in Oregon operate in a complex and dynamic physical, biological and institutional environment. Within this environment, managers of these firms will attempt to maximize some objective function which may include profit. This maximization is dependent upon the level of output, or the levels of inputs. Given a relationship...
Resource Type:: Masters Thesis
Full Text:: n inputs. This can be shown by: L = n j=l J Yj E w. .X. . + A(c - Z w. .X. .) 1=1 1J 1J 1

Resource combination and product-mix in Oregon seafood processing

Creator:: Chong, Kee-Chai
Resource Type:: Dissertation
Full Text:: approved: Frederick J. S^nith This study is concerned with the economics of seafood processing. It

Estimation of small scale fishery production relationships : the case of the Florida reef fishery

Creator:: Cerda, Rene
Abstract:: This study develops an improved method for understanding economic production relationships in small scale fisheries. This method postulates that gross revenue is a function of physical input quantities, and is based upon the transcendental logarithmic function to derive factor share equations for each of the five inputs in the model....
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGEMENTS I wish to express my appreciation to Dr. Frederick J. Smith, ray major professor, for his

Analyzing a port economic impact model : application to the Port of Newport

Creator:: Cerda, Arcadio Alberto
Resource Type:: Masters Thesis
Full Text:: Abstract Approved by: , -,- -x- -- Frederick J.^Smith Ports are more than a geographic location. They

An economic analysis of enterprise combinations on farms in the Willamette Valley

Creator:: Lange, John Erwin
Abstract:: Questionnaires were mailed to farmers in six counties of the Willamette Valley requesting the kind and size of enterprises and the gross income received from the enterprises on each farm. Enterprises were defined both as general livestock or crop categories and as individual crop or livestock enterprises. Two computer programs...
Resource Type:: Masters Thesis
Full Text:: am most indebted, Dr. Frederick J. Smith, major professor, for help and guidance throughout this

Analysis of fresh fish sales as a function of promotion in the Portland metropolitan area

Creator:: Batie, Sandra S.
Resource Type:: Masters Thesis
Full Text:: THE PORTLAND METROPOLITAN AREA Abstract approved: ___ Frederick J. Smith The objective of

Economic analysis of oyster production under controlled conditions

Creator:: Ishiyama, Hisashi
Resource Type:: Masters Thesis
Full Text:: CONTROLLED CONDITIONS , it / Abstract approved: Frederick J. Smith Efforts in this study were

The cloud point composition and flory-huggins interaction parameters of polyethylene glycol and sodium lignin sulfonate in water-ethanol mixtures

Creator:: Luh, Song-ping
Abstract:: In designing a solubility based separation process for solvent recovery of an organosolv pulping process, the phase behavior of polymeric lignin molecules in alcohol - water mixed solvent should be known. In this study, sodium lignin sulfonates (NaLS) samples were fractionated into three different molecular weight fractions using a partial...
Resource Type:: Masters Thesis
Full Text:: Approved: Willi J. Frederick / Jr. In designing a solubility based separation process for solvent

Biased and unbiased estimation: an econometric application in the tuna industry

Creator:: Muangkoe, Marut
Abstract:: An econometric model of the canned tuna market is used to evaluate biased and unbiased estimators. Four methods for improving mean square error when multicollinearity is present in a regression equation are examined and compared with the results of ordinary least squares (OLS). Exact and inexact prior information methods are...
Resource Type:: Dissertation
Full Text:: : Frederick J. Smith An econometric model of the canned tuna market is used to evalu- ate biased and

A system analysis method for water quality management by flow augmentation

Creator:: Worley, John Larry
Abstract:: A rapid expansion of population and industrialization in recent years has created new and difficult problems in water resources management. Prudent management of water quality will require that more efficient methods be developed for evaluating large volumes of data on complex river systems, and tabulating the results in a form...
Resource Type:: Masters Thesis
Full Text:: sincere thanks are given to Mr. Frederick J. Burgess, Assistant to the Dean, School of Engineering

Economic feasibility of synchronization of estrus for selected beef cattle ranches

Creator:: Deal, Emit Bernard, 1941-
Resource Type:: Dissertation
Full Text:: Feasibility of Synchronization of Estrus for Selected Beef Cattle Ranches Abstract approve Frederick. Smith

Ecomomic theory and research framework for a multi-output production system : rice-fish culture technology in the Philippines

Creator:: Tagarino, Rogelio N.
Resource Type:: Dissertation
Full Text:: prpfound appreciation of the following persons and institutions: Dr. Frederick J. Smith, major professor

An investigation of the clustering of divalent cations in potassium bromide

Creator:: Collins, Paul R.
Resource Type:: Dissertation
Full Text:: Potassium Bromide Redacted for privacy Abstract approved: to,, _ William J(Freder7icks Single crystals of

A study of simultaneous diffusion of Ca²⁺ and Sr²⁺ in alkali chlorides

Creator:: Machida, Hisashi
Abstract:: The simultaneous diffusion of Ca 2+ and Sr 2+ ions in purified single crystals of KC1 and NaC1 was studied over the temperature ranges from 451°C to 669°C in KC1 and from 448°C to 683°C in NaCl. A radioactive tracer technique was used in two types of measurements: diffusion from...
Resource Type:: Dissertation
Full Text:: DIFFUSION OF Ca 2+ AND Sr 2+ IN ALKALI CHLORIDES Abstract approved: Redacted for privacy fillfiam J

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