To determine if the distribution and frequency of dicarboximide resistance in the Botrytis population in vineyards in western Oregon is rapidly changing or remaining relatively stable. 2. To determine the relationship between fungicide use and the frequency of dicarboximide-resistant strains of Botrytis cinerea in grape, raspberry, snap bean, and strawberry...
Develop and publish literature to provide up-to-date information on specific topics zDevelop grape grower and County Extension Agent training sessions and short courses zResearch phyiloxera biology in Oregon
Proceedings of the 66th Annual Western Orchard Pest and Disease Management Conference, held January 8-10, 1992 at the Imperial Hotel in Portland, Oregon.
A structural active-object systems (SAOS) is a, transition-based object-oriented system consisting of a collection of interacting structural active objects (SAOs), which can be structurally and hierarchically composed from their component SAOs. The behaviors of SAOs are determined by the transition statements provided in their class definitions. Various concurrent systems such...
The problem addressed in this paper is that of usability of the Petri Net Editor used to create applications in the Objex framework. This editor puts a lot of burden on the user, in that the user needs to remember all the GUI resources previously created for the application, has...
The coverage of a learning algorithm is the number of concepts that can be learned by that algorithm from samples of a given size. This paper asks whether good learning algorithms can be designed by maximizing their coverage. The paper extends a previous upper bound on the coverage of any...
This paper applies learning techniques to make engineering optimization more efficient and reliable. When the function to be optimized is highly non-linear, the search space generally forms several disjoint convex regions . Unless gradient-descent search is begun in the right region, the solution found will be suboptimal. This paper formalizes...
This paper describes efficient methods for exact and approximate implementation of the MIN-FEATURES bias, which prefers consistent hypotheses definable over as few features as possible. This bias is useful for learning domains where many irrelevant features are present in the training data.
We first introduce FOCUS-2, a new algorithm that...
Crops were grown at the experimental farms using accepted cultural practices within the limits of experimentation or trials were conducted on growers' fields. Most experiments were designed as randomized complete blocks with two to five replications. Herbicide treatments were applied uniformly with precision plot sprays or granular formulations were distributed...
A problem with a number of available parallel programming tools proposed and implemented by researchers is that there has been little consideration of the impact of the user interface on users outside the field of computer science.
In this paper we propose and implement Banger, an extension to the Parallel...
This case study highlights the misappropriation of a
public natural resource. Public access to the backwaters of the
Willamette River near Peoria, Oregon has been obstructed by the
construction of berms along the river f or private benefits. Based
on field measurements, existing studies, state laws and
regulations; this paper...
This paper focuses on the role of natural resources information in Oregon legislative
policy-making, based on the two legislative case studies from the 1991 Legislative Session,
surveys conducted of state natural resource agency legislative liaisons, and a review of
current literature addressing policy-making and the role of science in policy-making....
This research was designed to search for regularities in
the spatial pattern resulting from government designation of
protected areas for conservation purposes on the African continent.
Four countries were used to test for a relationship between
protected areas and vegetation types and also whether colonial
background had an impact on...
The following study was commissioned by the Oregon State University Extension Service, Oregon Sea Grant College, and the Oregon State Marine Board (OSMB) to address the public transient moorage needs of large craft cruising and sailing vessels on the Lower Columbia River. The study will focus on the Oregon side...
In September 1988, the U.S. Secretary of the Interior and the Governor of Oregon announced the creation of the joint state-federal Placer Minerals Technical Task Force. The group was charged with performing an analysis of the potential economic and environmental aspects of placer mineral mining in the nearshore waters of...
Rights-based systems for controlling the use of marine resources developed in many "traditional" societies of the world--notably
in the isolated island societies of the Pacific. These "customary marine tenure" systems (CMT) have eroded or collapsed
in many societies since the development of economic and other links with outside societies and...
Leaves of healthy strawberry plants were inoculated with either vinclozolin-sensitive or vinclozolin-resistant isolates of Botrytis cinerea at one of three concentrations: 5x104, 1x105, and 5x105 conidia/ml. One week following inoculation, representative leaves were harvested and cut into 9mm2 leaf pieces. Some pieces were immediately plated onto selective Botrytis medium while...
The effects of nitric oxide (NO) on the individual components of Azotobacter vinelandii
nitrogenase have been examined by kinetic and spectroscopic methods. Incubation of the Fe protein (Av2)
for 1 h with stoichiometries of 4- and 8-fold molar excesses of NO to Av2 dimer resulted in a complete
loss of...
When there’s no job and the pay-check dwindles,
you’re not without resources. Take stock of all
non-dollar resources you have as a family.
Among these assets are time, knowledge, possessions,
property, and creativity.
Acetylene is a slow-binding inhibitor of the Ni- and Fe-containing dimeric hydrogenase isolated
from Azotobacter vinelandii. Acetylene was released from hydrogenase during the recovery from inhibition.
This indicates that no transformation of acetylene to another compound occurred as a result of the interaction
with hydrogenase. However, the release of C2H2...
The Pacific Blue Marlin stock supports both recreational and commercial
fisheries throughout their Pacific-wide distribution. The commercial component of
the fishery imposes a greater fishing mortality on the stock but the recreational
component may be more economically dependent on the continued health of the
fishery (Orbach 1989). The recreational or...
This report includes information concerning experimental use of unregistered pesticides or unregistered uses of pesticides. Experimental results should not be interpreted as recommendations for use. Use of unregistered materials or use of any registered pesticides inconsistent with its label is against both Federal Law and State Law.
Graphical user interface (GUI) applications based on object-oriented design are difficult to build without a supportive tool to graphically visualize the structure of the entire application. As an application becomes larger and more complex, it becomes harder to visualize its class hierarchy. Several systems, such as Smalltalk, MacApp, THINK C...
Vocalization patterns of two groups of captive Francois' langurs (Presbytis
francoisi) were studied between August 1989 and June 1990. During the 11
months of observation, 109 hours of vocalization recordings were made at Metro
Washington Park Zoo, Portland, and the San Diego Zoo, San Diego. Based on the
behavioral observations...
Leda is a strongly typed, compiled, multiparadigm programming language. This paper describes various implementation concerns which arose from the experience of writing a Leda compiler as part of the Leda research team. These include aspects of run-time representation, symbol-table information, and code generation. The paper concentrates on objects and classes....
I present a new heuristic search approach to compute approximate answers for the probability query in belief nets. This approach can compute the 'best' bounds for a query in a period of any given time (if time permitted, it will get an exact value). It inherits the essence of Symbolic...
We describe a set of data flow techniques and code transformations that translate a single instruction stream, multiple data stream (SIMD) Dataparallel C program into a semantically equivalent single program, multiple data stream (SPMD) C program suitable for execution on shared memory multiprocessor computers, such as the Sequent Balance and...
Control abstraction is the process by which programmers define new control constructs by specifying an ordering of statement execution. Using control abstraction, we can create new control constructs for parallel programming, separate the specification of parallelism and synchronization from the rest of the application code, and vary the parallelism exploited...
This paper investigated observed morphologic changes in sand
accretion and erosion due to sedimentary processes at the jetty
entrance to the Siuslaw River near Florence, Oregon. Ten years
of data on morphologic change in sand and sediment distribution,
collected semiannually between 1981-1990, was used to analyze the
nearshore sedimentation processes...
In this project we have implemented an Object-Oriented simulation model of a Digital Switching System. We analyzed various software components of a Digital Switching System. The call processing module is the principal component and the most complex of all. The features of Object-Oriented principles were investigated and found to fit...
A Belief Net is a factored representation for a joint probability distribution over a set of variables. This factoring is made possible by the conditional independence relationships among variables made evident in the sparseness of the graphical level of the net. There is, however, another source of factoring available which...
Leda is a newly evolving, strongly typed, compiled multi-paradigm programming language. This paper describes the integration of one of its supported paradigms, the logical (or relational) paradigm, into the language and the current implementation. It also describes implementational aspects of enumerated types and gives a variety of example programs that...
This document defines the language Leda as currently implemented by the authors and Vinoo Cherian. Leda is an evolving research language and readers may wish to consult the bibliography for a variety of papers concerning its raison d'être. Our purpose here is to guide investigators in the use of a...
The term "sustainable development" describes certain
proposals designed to provide the present generation with
such needs as food, shelter, and energy while sustaining the
environment or stock of natural resources for future
generations. The purpose of this paper was to analyze the
relationship between sustainable development and current
U.S. petroleum...
A team of three people at the Republic of Palau Division of Marine Resources interviewed 54 women in seven of Palau's 16 states in a three-month study to determine the role of women in nearshore fisheries. The interviews, which generally lasted over an hour each, found that most of the...