Several triazine herbicides were evaluated during the fall of 1967 and the spring and summer of 1958 on a variety of crop and week species to determine their potential selective and soil sterilant value.
Pattern matching is the process of comparing two objects to see if they are similar to each other. Objects can be physical objects, situations, facts or events. The criteria of matching can be exact or partial. Traditional pattern matching systems rely on exact matches, in which a small set of...
Multimedia networking is one of the most exciting developments in today's Internet. Streaming technology; which allows the player to start playing audio/video data immediately instead of waiting for the entire file to be downloaded, presents an attractive vehicle for the distribution of multimedia content over the Internet. However, transmitting real-time...
Programming style is important for program understanding in programming tasks such as maintenance. testing, and debugging. The goal of programming style is to improve the readability of the source program without adversely affecting its performance.
Critique is a FORTRAN source program style critic which analyzes the source program and outputs...
Hayes, in his Naive Physics Manifesto, identified two alternate ontologies for reasoning about liquids, an ontology based on the notion of a contained substance and one based on the notion of a molecular collection. Qualitative Process theory, proposed by Forbus, lends itself easily to encoding the contained substance ontology. It...
In this report, we describe an implementation of a prototype information resources management system for the synthesis and integration project of the forest response program using a 4GL application development system ACCELL. Our system is called Prototype Virtual Data Management System (PVDMS). ACCELL is a software package that combines a...
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...
The reaction of fluid or gas flowing around an obstacle is a common engineering problem. Computer simulations are often used to measure and visualize the physical processes involved. In this report, we will discuss a parallel implementation of a simulation using the Smooth Particle Hydrodynamics (SPH) approach to fluid flow....
Caesar is an interactive graphic editor that is used to generate layouts for VLSI circuits. It runs on a VAX-11 /780 under the UNIX operating system with Berkeley extensions. Caesar has a unique and simple user interface. Phled is an enhanced version of Caesar that runs on a M68000-based engineering...
An execution of a database system is considered correct if its net effect is as if transactions were executed serially, and such an execution is called serializable. In this short paper we show that the serializability test problem can be reduced to a simple pebbling problem. Our characterization is intuitive...
In vivo spectral analysis of radish leaves sought effects on radish light harvesting apparatus (LH) of the herbicides: clomazone (FMC57020; [2-(2-chlorophenyl) methyl-4,4 dimethyl-3-isoxalidinone), diuron (DCMU; [3-(3,4-dichlorophenyl)-l,ldimethylurea)] and amitrol (H-1,2,4-triazole-3-amine). All herbicides used cause visual symptoms of chlorosis or damage chloroplast membranes and thus disrupt LH structure. The spectra were obtained...
Several new herbicides were compared with those presently being used in Oregon to control weeds in snap beans, red beets and new plantings of strawberries. The results of these tests are summarized in tabular form.
Accurate chromosome segregation and cell cleavage are critical to maintaining genomic integrity. Both events involve the spindle apparatus, but the exact mechanics is as puzzling as the contradicting models proposed in the last two centuries. In this dissertation, current prevailing models of chromosome segregation and cell cleavage are tested using...
The study of the subsurface flow and distribution of water is critical to the
evaluation of the unsaturated zone for a potential geologic high-level radioactive
waste repository. This site is located at Yucca Mountain, Nevada in the northern
Mojave Desert. and was chosen on the basis of its low precipitation,...
Joseph Reddeford Walker conducted
a party of men across the Sierra Nevada to the
Pacific coast of California in 1833. Previous
interpretations of the portion of the route
from Humboldt Sink, Nevada, to the San Joaquin
River, California, are not satisfactory. A
body of descriptions of the terrain traversed
exists...
Speckled dace (Rhinichthys osculus) is a small cyprinid that is geographically widespread throughout western North America, and the most frequently occurring sh in Oregon. Because of the genetic and morphological variation in this species across its range, it has been referred to as a "species complex" and no revision to...
The Tobin Range of central Nevada lies in the Basin and Range extensional
province near the transition between more extended terrane (>50%) to the south and
east, and generally less extended terrane to the north and west. Geologic mapping,
40Ar/39Ar dating and whole-rock geochemical analysis were employed to establish the...
The detection of subtle variations in mineral chemistry in zoned hydrothermal
alteration associated with the formation of porphyry copper deposits by short-wave
infrared spectroscopy and rock chemistry are potentially valuable vectoring tools for
mineral exploration. In order to correctly interpret the data collected by these methods,
results must be calibrated...
In the policy literature and the popular press, the issues of water and conflict are
being raised together with increasing frequency. Geographic, international relations, and
environmental security theories speculate on the linkages between geographic features,
natural resources, spatial relationships, and war or acute conflict. Little quantitative or
global-scale research exists,...
This study demonstrates the utility of combining available scientific data with local ecological knowledge in a Geographic Information System (GIS) to support
community-based fisheries management. The approach used provides both the framework for capturing important ecological, economic and social information relevant to marine fisheries management, and also offers coastal citizens...
Obtaining accurate estimates of animal abundance is made difficult by the fact that most
animal species are detected imperfectly. Early attempts at building likelihood models that
account for unknown detection probability impose a simplifying assumption unrealistic for
many populations, however: no births, deaths, migration or emigration can occur in the...
Accurate chromosome segregation and cell cleavage are critical to maintaining genomic integrity. Both events involve the spindle apparatus, but the exact mechanics is as puzzling as the contradicting models proposed in the last two centuries. In this dissertation, current prevailing models of chromosome segregation and cell cleavage are tested using...
Designing timber harvesting units is a challenging task. The task requires decision making on logging equipment, landing site, cable road profile, road location, and transportation system. Traditionally forest planners have done the task manually. However, the manual method makes it difficult to examine many alternatives and the harvest plans depend...
The impact of recent severe droughts throughout the United States, the potential for climate change to intensify the frequency and severity of drought, and discussion about the future of government assistance in agriculture highlight the need for a transition from drought as ‘disaster’ to drought as ‘managed risk’. However, guidance...
Many different models and mechanisms of water imbibition into soil have been described in the literature. Theoretical equations based on those models exist to predict how water will flow in porous media. These models can be useful, but have their weaknesses. Research on imbibition and infiltration into soils has mostly...
Phytophthora lateralis is the causal agent of cedar root rot, a fatal forest pathogen whose principal host is Chamaecyparis lawsoniana (Port-Orford-cedar), a predominantly riparian-restricted endemic tree species of ecological, economical, and cultural importance to coastal Oregon and California. Local scale distribution of P. lateralis is thought to be associated with...
The Tobin Range of central Nevada lies in the Basin and Range extensional
province near the transition between more extended terrane (>50%) to the south and
east, and generally less extended terrane to the north and west. Geologic mapping,
40Ar/39Ar dating and whole-rock geochemical analysis were employed to establish the...
The Tobin Range of central Nevada lies in the Basin and Range extensional
province near the transition between more extended terrane (>50%) to the south and
east, and generally less extended terrane to the north and west. Geologic mapping,
40Ar/39Ar dating and whole-rock geochemical analysis were employed to establish the...
Predatory lionfishes (Pterois volitans and P. miles) were introduced to Florida waters during the mid to late 1980s, and eventually established self-sustaining breeding populations in the tropical western Atlantic. These invasive species are now widespread along the southeastern seaboard of the United States, across the Caribbean Sea, and in the...
Obtaining accurate estimates of animal abundance is made difficult by the fact that most
animal species are detected imperfectly. Early attempts at building likelihood models that
account for unknown detection probability impose a simplifying assumption unrealistic for
many populations, however: no births, deaths, migration or emigration can occur in the...
Accurate chromosome segregation and cell cleavage are critical to maintaining genomic integrity. Both events involve the spindle apparatus, but the exact mechanics is as puzzling as the contradicting models proposed in the last two centuries. In this dissertation, current prevailing models of chromosome segregation and cell cleavage are tested using...
Many different models and mechanisms of water imbibition into soil have been described in the literature. Theoretical equations based on those models exist to predict how water will flow in porous media. These models can be useful, but have their weaknesses. Research on imbibition and infiltration into soils has mostly...
Accurate chromosome segregation and cell cleavage are critical to maintaining genomic integrity. Both events involve the spindle apparatus, but the exact mechanics is as puzzling as the contradicting models proposed in the last two centuries. In this dissertation, current prevailing models of chromosome segregation and cell cleavage are tested using...
The middle to late Eocene tholeiitic Tillamook Volcanics compose the oldest rock unit in the Hamlet-North Fork of the Nehalem River area. Geochemical plots and field relationships indicate that these rocks were produced in an extensional tectonic setting in the developing forearc and formed an extensive tholeiltic oceanic island. The...
The study of the subsurface flow and distribution of water is critical to the
evaluation of the unsaturated zone for a potential geologic high-level radioactive
waste repository. This site is located at Yucca Mountain, Nevada in the northern
Mojave Desert. and was chosen on the basis of its low precipitation,...
This study focuses on the tradeoffs that exist for managing forested landscapes for biodiversity and timber production. Tradeoff evaluation is important to natural resource managers so they can understand the benefits and costs of alternative management prescriptions. The study examines three watersheds in the Oregon Coast Range and 166 terrestrial...
The central Bond Creek area is on the north slope of the Wrangell Mountains approximately 15 miles east of Nabesna, Alaska. The entire area is underlain by plutonic rocks of the Monte Cristo batholith of probable Jurassic age. Early members of this complex are hornblende diorite, quartz diorite, and granodiorite...
Deep-sea bamboo coral (Isidella sp.) SE000901A from the southern Oregon coast (water depth 1048m) provides a high-resolution record of variability of North Pacific Intermediate Water (NPIW) and carbon rain to the sea floor, related to coastal upwelling, from 1808 to 2000AD. Counting of annual layers in magnesium to calcium (Mg/Ca)...
Phytophthora lateralis is the causal agent of cedar root rot, a fatal forest pathogen whose principal host is Chamaecyparis lawsoniana (Port-Orford-cedar), a predominantly riparian-restricted endemic tree species of ecological, economical, and cultural importance to coastal Oregon and California. Local scale distribution of P. lateralis is thought to be associated with...
The impact of recent severe droughts throughout the United States, the potential for climate change to intensify the frequency and severity of drought, and discussion about the future of government assistance in agriculture highlight the need for a transition from drought as ‘disaster’ to drought as ‘managed risk’. However, guidance...
Many different models and mechanisms of water imbibition into soil have been described in the literature. Theoretical equations based on those models exist to predict how water will flow in porous media. These models can be useful, but have their weaknesses. Research on imbibition and infiltration into soils has mostly...
Accurate chromosome segregation and cell cleavage are critical to maintaining genomic integrity. Both events involve the spindle apparatus, but the exact mechanics is as puzzling as the contradicting models proposed in the last two centuries. In this dissertation, current prevailing models of chromosome segregation and cell cleavage are tested using...
The middle to late Eocene tholeiitic Tillamook Volcanics compose the oldest rock unit in the Hamlet-North Fork of the Nehalem River area. Geochemical plots and field relationships indicate that these rocks were produced in an extensional tectonic setting in the developing forearc and formed an extensive tholeiltic oceanic island. The...
The Garnet Range-Bearmouth area of western Montana was the
depositional site for basinal, platform slope, shelf, and
peritidal Mississippian carbonate rocks. The following
stratigraphic units, listed in ascending order, are recognized:
the Paine Limestone, Middle Canyon Formation, Mission Canyon
Limestone, and McKenzie Canyon Limestone of the Tendoy Group; the
Kibbey...
Time trends in flow and channel characteristics were evaluated for the Middle Fork Willamette (MFW) River, which drains a 668 km2 forested watershed in the Cascade Mountains of western Oregon. Timber
production is the primary land use in the watershed. Analysis of precipitation and peak flow data from 1959 to...
Ramaria is a genus of epigeous fungi common to the coniferous forests of the Pacific Northwest of North America. The extensively branched basidiocarps and the positive chemical reaction of the context in ferric sulfate are distinguishing characteristics of the genus. The genus is estimated to contain between 200-300 species and...
The Tobin Range of central Nevada lies in the Basin and Range extensional
province near the transition between more extended terrane (>50%) to the south and
east, and generally less extended terrane to the north and west. Geologic mapping,
40Ar/39Ar dating and whole-rock geochemical analysis were employed to establish the...
Understanding continental crust formation and modification is a fundamental and longstanding geologic problem. Influx of mantle-derived basaltic magma and partial melting of the crust are two ways to drive crustal differentiation. This process results in a low density upper crust and denser, more refractory lower crust, creating significant and vastly...
The impact of recent severe droughts throughout the United States, the potential for climate change to intensify the frequency and severity of drought, and discussion about the future of government assistance in agriculture highlight the need for a transition from drought as ‘disaster’ to drought as ‘managed risk’. However, guidance...
This study demonstrates the utility of combining available scientific data with local ecological knowledge in a Geographic Information System (GIS) to support
community-based fisheries management. The approach used provides both the framework for capturing important ecological, economic and social information relevant to marine fisheries management, and also offers coastal citizens...
Allocating use in wilderness by rationing is one way to
control crowding and resource deterioration problems. The wilderness
user's perception of wilderness management systems is vital to
effective management decisions when overuse problems arise. The
purpose of this study was to determine which direct rationing
systems users preferred. The five...
In the policy literature and the popular press, the issues of water and conflict are
being raised together with increasing frequency. Geographic, international relations, and
environmental security theories speculate on the linkages between geographic features,
natural resources, spatial relationships, and war or acute conflict. Little quantitative or
global-scale research exists,...
The Tobin Range of central Nevada lies in the Basin and Range extensional
province near the transition between more extended terrane (>50%) to the south and
east, and generally less extended terrane to the north and west. Geologic mapping,
40Ar/39Ar dating and whole-rock geochemical analysis were employed to establish the...
Reflux condensation tests examining steam condensation in a PWR steam
generator (SG) were conducted at the Oregon State University (OSU) Advanced
Plant Experiment (APEX) Test Facility from 2005 through 2007. The
experimental data collected will provide a basis to assess TRACE steam generator
modeling techniques and assist in development of...
A change to a warmer, drier climate beginning as early as 1900 was responsible
for triggering a dramatic, rapid retreat of Collier Glacier, Oregon, between 1924 and
1940. Although there was a dramatic decrease in precipitation contemporaneous with this observed "step-function" response of mass loss, it is unclear if climate...
The major obstacle to widespread parallel programming of multiprocessors is the lack of a convenient parallel programming system. PPSE (Parallel Programming Support Environment) is a unified approach to parallel programming. Parallax is developed as a component of PPSE based on ELGDF which is a graphical language for designing parallel programs....
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...
Programming style plays an important role in program understanding and maintenance. Studies [Par83] have shown that as much as one- half of a maintenance programmer's time is spent in activities related to understanding the program. Program understanding is also important for testing and debugging. Programming style embellishes the readability of...
NASA’s ICESat-2 satellite, which launched in 2018, carries the Advanced Topographic Laser Altimeter System (ATLAS), a green-wavelength, photon-counting lidar. While ICESat-2’s primary mission focuses on measurement of elevation of ice sheets, glaciers, sea ice, and vegetation, ATLAS has also proven remarkably effective at measurement of bathymetry, or water depths. However,...
The Elliott State Forest, created in 1930 and now the Elliott State Research Forest, is 33,700 ha of rainforest located 10–32 km inland from North America's Pacific Ocean coast. Its location in the central part of the Oregon Coast Range (Oregon, United States) places the Elliott Forest at lower elevations...
Wheat is an important part of a healthy and balanced diet, requiring six servings per day to maintain a recommended 2000 Calorie intake (McRae, 2017). Because of this more land than almost any other kind of cereal is set aside for the purposes of growing wheat. To keep up with...
Assessment of a 1-credit, required course (English 200 Library Skills for Literary Studies). Consists of interviews with English faculty, survey of students, pre-skills assessments.
The signatories of this statement seek to describe the state of scientific knowledge regarding likely impacts of climate change to the Pacific Northwest region. The intent is to assist Governor Kulongoski’s Advisory Group on Global Warming in its task of developing a greenhouse gas emission reduction strategy for Oregon. The...
Spreadsheet created to provide Public Health Department faculty at Oregon State University with cost comparison information for the journals in which they most often published in 2003-2005. Includes journal titles, cost, impact factor (2004), and publisher information.
There is significant evidence that an increase in social media usage causes changes to mood and feelings about the self. It has also been found that there is a significant relationship between the extent of social media usage consumption and self-perception. Mimicking social media exposure, I focused on how participants...
Spreadsheet created to provide Horticulture Department faculty at Oregon State University with cost comparison information for the journals in which they most often published in 2003-2005. Includes journal titles, cost, impact factor (2004), and publisher information.