Cydia latiferreana Wlshm. is recognized as the key
insect pest of cultivated filbert (hazelnut) in Oregon.
The purpose of this study was to obtain information on
mating and oviposition behavior of the adult insect, to
calculate the lower temperature threshold and degree-days
required for egg development, and to develop an...
The frequency of devastating disasters has increased in the United States due to the presence of climate change. Human subject research is often conducted in these post-disaster areas to gain valuable data and insights. In recent years, discourse regarding the ethical nature of research conduct in these exposure areas has...
The purpose of this research is to hydraulically characterize an engineered wetland in Albany, Oregon. The wetland receives treated wastewater from both Albany Millersburg Water Reclamation Facility (AMWRF) and ATI Wah Chang. AMWRF's water is municipal waste water. ATI Wah Chang's water comes from its nearby metal processing plant. The...
This paper explores the history of housing policies in the United States and how they were implemented. It also examines the effects of discriminatory practices against minorities and low-income groups. There is evidence that this systemic form of discrimination creates conditions that cause poverty and unequal access to education, home...
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....
I examined habitat electivity and movement patterns of adult spring chinook salmon at microhabitat and channel unit spatial scales, and seasonal to annual temporal scales in seven streams in the Grande Ronde, John Day, and Imnaha basins. The objective was to compare habitat use and availability among streams, channel units,...
The purpose of this document is to provide the SAH Workgroup with a summary of SAH strategy development and identify issues that have arisen so that all work group members have a common understanding of the context for their work. The second section discusses the background of state forests. Salmonid...
A comprehensive approach to nutrient management will help you ensure availability of optimum levels of nutrients for tree growth. Components of a comprehensive nutrient management strategy include:
• Soil analysis before planting (useful in predicting the need for potassium, magnesium, or lime applications)
• Observations of annual shoot growth, leaf...
We find that increases in implied market volatility (a proxy for market fear) have a significant impact on returns of bank stocks, above and beyond systematic risk proxied by the expected excess market return during a bad economic regime. Large bank returns are favorably affected by increases in implied market...
This publication lists the components of a comprehensive nutrient management strategy and provides nutrition guidelines for mature and new hazelnut orchards.
With increasing use of new pesticide formulations worldwide to repel and kill unwanted organisms, negative consequences on non-target species such as honey bees and other pollinators are of increasing concern and not well studied. This study compares the nanotechnology based pesticide (NBP) Safari and its base neonicotinoid, dinotefuran, and their...
This annotated bibliography was prepared for the Salmon Anchor Habitat Work Group. This group was formed by the Oregon Department of Forestry to review and evaluate the Salmon Anchor Habitat Strategy as directed by the 2003 Oregon Legislature. The Salmon Anchor Habitat Strategy is a component of management plans developed...
This publication provides a glossary of botanical terms related to hazelnut pollination and describes the flower and nut development process, pollination, and related issues.
Published January 2004. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
The Persian, or English, walnuts (Juglans regia) grown commercially in Oregon evolved in the mountainous regions of central Asia. California is a world
leader in walnut production and produces 99 percent of the United States walnut crop. This publication is designed for those who grow walnuts commercially in Oregon, as...
This publication will help you decide if a home orchard is right for you. It also gives guidelines for growers, how to plan your home for an orchard, planting and early care, care of bearing trees as well as harvesting and storage.
Fer1L6 is an uncharacterized member of the ferlin family of proteins, a group of large, calcium sensitive proteins with emerging roles in vesicle trafficking and various disease states. The presence of Fer1L6 has been identified within the C2C12 cell line of mouse skeletal muscle. To determine the protein’s subcellular location...
Intercollegiate wrestling at Oregon State University had its
inception on March 20, 1909. On that day, the Oregon Agricultural
College wrestling team wrestled in a home meet against the team
from Washington State College. The Beavers, under the tutelage of
their first coach Eddie O'Connell, won their first intercollegiate meet,...
Transpiration (T), or the evaporation of water through plant stomata, plays a critical role in climate and biophysical processes at the earth’s surface. While T makes up a majority of the terrestrial evapotranspiration (ET) flux on a global scale, the partitioning of ET is variable and remains elusive. Because photosynthetic...
The presence of an increased accumulation of intraabdominal fat (IAF) has been linked to dyslipidemia, hyperinsulinemia, and hyperglycemia, which precede the development of type 2 diabetes and coronary artery disease (CAD). It has been shown that IAF begins depostition during childhood. Human studies suggest that regular endurance exercise, that does...
Lichens are an important part of the biota in western Oregon forests, where
they perform valuable ecological roles and contribute significantly to biodiversity.
Lichens in western Oregon are threatened by a number of factors including air
pollution and land use practices. If we wish to maintain the persistence of lichens...
On April 1, 1976, Steve Jobs and Steve Wozniak entered into a partnership agreement to found Apple Computer. In the decade that followed, Apple experienced remarkable growth and success, as Jobs catapulted Apple to the Fortune 500 list of top‐flight companies faster than any other company in history. Under direction...
Cyclopropenoid fatty acids (CPFA), which are a group of
fatty acids produced by plants of the order Malvales, are known
to induce adverse physiological effects when administered to a
variety of animal species. A structurally strained cyclopropene
ring is present in all CPFA and is believed responsible for the
toxic...
In watersheds across the American Pacific Northwest, changes in the cultural and regulatory landscape have increased pressure to restore and protect populations of anadromous fish. But restoration of anadromous fish populations constitutes a ‘wicked problem’, relentless in character, affecting diverse stakeholder groups, and defying ‘once and for all’ solutions (Weber...
The purpose of this study is to examine how autobiography functions as image restoration for a political candidate through the analysis of Sarah Palin's memoir, Going Rogue: An American Life. In particular, the study will identify and evaluate specific restoration strategies implemented by Palin in order to repair her image...
:
________________________________________________________________________
Mark P. Moore
The purpose of this study is to examine how autobiography functions as image
Malolactic fermentation (MLF) is an important step in the production of wines and is commonly performed in red or cool climate wines to reduce acidity. In this study the impact of MLF on red wine color and the ability of Oenococcus oeni to degrade compounds important to the development of...
In order to investigate potential climate impacts on landscape-scale ecosystem processes, I implemented a dynamic general vegetation model (DGVM) over a large domain in northern California and western Nevada on a rectangular grid of ca. 800-meter spatial resolution. I used 100 years of observed, monthly climate and nine future climate...
The rhenium (V) complex Tp'ReO₂ (Tp' = hydrido-tris-(3,5-
dimethylpyrazolyl)borate), generated in situ from PPh₃ reduction of
Tp'Re0₃, reacts with small ring heterocycles such as epoxides and
episulf ides. The strained trans-cyclooctene ring provides an unusual
thermodynamic bias against direct atom transfer, but trans-cyclooctene
oxide still produces substantial amounts of trans-cyclooctene....
Sports analytics is rapidly evolving today through the use of computer vision systems that automatically extract huge amount of information inherently present in multimedia data without much human assistance. This information can facilitate a better understanding of patterns and strategies in various sports. However, for non-professional teams, due to expense...
Low physical activity levels and high serum C-reactive protein (CRP) levels are risk factors for coronary artery disease (CAD) in both men and women. However, postmenopausal women who take hormone replacement therapy (HRT) may have increased risk of CAD because of HRT-related increases in serum CRP. There are two manuscripts...
The Humboldt marten, Martes americana humboldtensis, has undergone a dramatic decline throughout its historical distribution in coastal Northwestern California. There is currently only one known population occupying an area occurring in <5% of the historical distribution of the subspecies. Conservation and management efforts to benefit this population are hampered by...
The effect of landuse change on the hydrologic, biogeochemical and ecological response of watersheds is a concern throughout the world. To help characterize the potential magnitude of such changes, and of the potential to remediate or avoid undesirable features, studies focused on the cumulative watershed effects of site level change...
Forest harvest can have significant impacts on forest ecosystems that may influence the capacity of soils to sequester carbon (C). The microbial community controls decomposition, which is a critical process in partitioning litter- and root-C between CO₂ and storage in semi-permanent soil-C pools. The objectives of this study were to...
The diverse lichen flora of the Pacific Northwest is being impacted by
population growth and by forest management practices. Accumulating information
about our lichen flora will improve our conservation strategies. This dissertation first
collects information to improve our understanding of how lichen communities vary
among forests of differing structure, and...
The purpose of this study was to determine if a significant
difference in cognitive achievement and retention occurred when skeletal
system anatomy and terminology were presented utilizing either videotaped
presentations or a traditional laboratory procedure.
Fifty-three first semester nursing students enrolled in biology
(Bio. 160 anatomy and physiology) at Lethbridge...
The microbial loop plays a crucial role in remineralization of organic matter and fuels recycled production in the aquatic environment. The capability of microbes to utilize particular compounds can be examined through their ectoenzyme (found outside the cell) activities using fluorogenic substrate analogs. These catalysts hydrolyze polymers otherwise too large...
The Cook-Austral island chain has been the center of debate for many years. Contrary to the classical hotspot hypothesis, this volcanic island chain does not exhibit a linear age progression with a single node of active volcanism, but instead shows evidence of young volcanism at several points along the chain....
:
_____________________________________________________________________
Anthony A. P. Koppers
The Cook-Austral island chain has been the center of debate for
One of the most common problems in wine production is the formation of hydrogen sulfide (H₂S) and other volatile sulfur compounds (VSCs), which can mask positive aromas at low concentrations and result in unpleasant aromas such as rotten egg, cabbage, garlic, and rubber at higher concentrations. Despite the large body...
The primary purpose of this study was to determine if inservicing Agriculture Science and Technology (AST) teachers over a new curriculum, resulted in increased student achievement. Specific objectives were to: 1) determine the subject areas (lessons) for a curriculum for teaching Integrated Pest Management (IPM); 2) develop a curriculum for...
I studied presence, relative abundance, and resource selection of bats in managed Douglas-fir (Pseudotsuga menziesii) forests in western Oregon from May through September, 1999–2001. Species richness was not related to elevation, density of snags, or length of edge or perennial streams in sampled landscapes. I captured bats more frequently in...
As genome sequencing projects begin to come to completion, the challenge becomes one of determining how to understand the information contained within the DNA. DNA is a polymorphic macromolecule; the A- B- and Z-DNA conformations have been observed by a variety of physical techniques. The magnitude of the energetic differences...
The function of a protein is defined by its three-dimensional structure, and in understanding the three-dimensional structure of a protein, we gain an understanding of its function and mechanism. Protein structures, especially at high resolution, can provide detailed insights into many elements of enzyme function and catalysis – identifying residues...
The chlamydiae are a family of obligate intracellular bacteria that have a unique bi-phasic developmental cycle, unique cellular properties, and a unique set of challenges to studying its biology. While genetic manipulation is becoming routine in Chlamydia, there are significant challenges to working with this intracellular parasite. The body of...
miRNA-guided cleavage initiates entry of primary transcripts into the trans-acting siRNA (tasiRNA) biogenesis pathway involving RNA-DEPENDENT RNA POLYMERASE6 (RDR6), DICER-LIKE 4 (DCL4), and SUPPRESSOR OF GENE SILENCING3 (SGS3). Arabidopsis thaliana TAS1 and TAS2 families yield tasiRNA that form through miR173- guided initiation cleavage on the 5’ side of the siRNA-generating...
Phytophthora ramorum is a plant pathogen that was accidentally introduced to the United States. This invasive microorganism has killed over a million trees in California and Oregon, and continues to spread to new areas. Diseased areas have been nationally quarantined to prevent further spread and more than ninety countries include...
Snowpack base temperatures vary during accumulation and diurnally. Their measurement
provides insight into physical, biological and chemical processes occurring at the snow/soil interface.
Recent advances in Raman-spectra instruments, which use the scattered light in a standard
telecommunications fiber-optic cable to infer absolute temperature along the entire length of the fiber,...
Douglas-fir provides social, economic, and ecological benefits in the Pacific Northwest (PNW). In addition to timber, forests support abundant plant and animal biodiversity and provide socioeconomic viability for many rural communities. Products derived from Douglas-fir account for approximately 17% of the U.S. lumber output with an estimated value of $1.9...
Forest Vegetation Management (VM) is an important tool used in the Pacific Northwest (PNW) for reforestation. It has been well documented that VM increases seedling survival and crop tree volume growth. What is less understood, is how altering the plant community and successional trajectory affects the way the ecosystem uses...
Polychlorinated dibenzo-p-dioxins (PCDD's) and
dibenzofurans (PCDF's) are environmental pollutants associated with the production and use of a number of industrial
chemicals. In addition, PCDD's and PCDF's are produced
during low temperature combustion of wastes containing
polyvinylchloride (PVC), chlorophenols, and a number of
other chemical precursors.
A significant source of environmental...
In this study an improved model of biomass and nutrient estimation of coastal Douglas-fir (Psuedotsuga menziesii) in the Pacific Northwest has been developed across a wide range of stand management regimes. This study quantifies and defines the type and intensity of biomass harvest and associated removal for actively managed stands...
The vegetation in Yosemite National Park changed during the 20th century and may change in the 21st century in response to climate change. Vegetation surveys made during the 1930s and the 1990s provide benchmark records separated by 60 years. This study uses the MC1 dynamic global vegetation model to forecast...
Community and technical colleges in the United States are experiencing an expansion of racial and ethnic diversity in students, faculty, and administrators. From 1996 to 2006, the number of Asian female college students increased 55.3%, from 13,184 to 20,477. The number of Asian male students increased 48.9%, from 9,731 to...
The Calapooia River, a major tributary of the Willamette River in western Oregon, is a watershed typical of many found in the Willamette Basin. Public and private forested lands occur in the steep Upper Zone of the watershed, mixed forest and agriculture lands are found in the Middle Zone, and...
This dissertation investigates the problem of uncertainty in complex ecological models. The term "complex" is used to convey both the common and scientific meanings. Increasingly, ecological models have become complex because they are more complicated; ecological models are generally multi-variate and multi-leveled in structure. Many ecological models are complex because...
Members of the SAR11 clade of heterotrophic α-proteobacteria are ubiquitous and abundant in the world's oceans where they are thought to play a pivotal role in the global carbon cycle. The first SAR11 bacterium cultivated in vitro, 'Candidatus Pelagibacter ubique' HTCC1062 (Ca. P. ubique), was isolated by dilution into sterile...
Many Gram-negative bacteria use a type III secretion system (T3SS) to establish associations with their hosts. The T3SS is a conduit for direct injection of type-III effector proteins into host cells, where they manipulate the host for the benefit of the infecting bacterium. For plant-associated pathogens, the variations in number...
Many plant-associated Gram-negative bacteria, such a Pseudomonas syringae pv tomato DC3000 (PtoDC3000), use a type III secretion system (T3SS) to establish a host-microbe relationship with compatible plants. The T3SS resembles a molecular injection mechanism that allows the bacteria to deliver type III effectors (T3Es) directly into the cell of the...
Full Text:
. Thireault, Jeff H. Chang
Abstract
Many plant-associated Gram-negative bacteria, such a Pseudomonas
Many plant-associated Gram-negative bacteria, such a Pseudomonas syringae pv tomato DC3000 (PtoDC3000), use a type III secretion system (T3SS) to establish a host-microbe relationship with compatible plants. The T3SS resembles a molecular injection mechanism that allows the bacteria to deliver type III effectors (T3Es) directly into the cell of the...
Full Text:
type III effectors
Andres Alvarez, Allison L. Creason, Caitlin A. Thireault, Jeff H. Chang
Abstract
This study estimates a supply of juniper from private lands to determine how much of the available juniper (Juniperus occidentalis Hook) can be economically supplied at alternative prices if a market was to develop for using juniper as a biomass source. While juniper is native to central Oregon, current land...
We present a modification to our recently published statistical associating fluid theory-based classical
density functional theory for water. We have recently developed and tested a functional for the
averaged radial distribution function at contact of the hard-sphere fluid that is dramatically more accurate
at interfaces than earlier approximations. We now...