Damping-off of table beets is of widespread occurrence in the
Willamette Valley of Oregon. Pythium ultimum Trow., Pythium
debaryanum Hess., and Rhizoctonia solani Kuhn. were found to be the
important pathogenic fungi causing the disease.
Trichoderma viride, Penicillium spp. Streptomyces spp. and
certain isolates of bacteria, all saprophytic organisms associated...
The Bolivian government is using a portion of the rent generated from its fossil fuel reserves to fund unconditional cash transfers as a means of redistributing resources. Although some countries have enacted conditional cash transfers in the past, these unconditional transfers are unique since they only have been implemented in...
An isolate of Coniothyrium obtained from a stem canker on
Nocturne rose from the Botany Department Farm, Corvallis, Oregon
was studied with respect to morphological and cultural characters,
pathogenicity and mineral nutrition. The hyphae of the isolate were
smooth, septate and branched. The hyphal cells averaged 16.37 X
3.52 microns....
Observations of bacterial soft rot of onions in the Lake Labish
area in the Willamette Valley of western Oregon showed that two distinct
symptom types occur during the growing season. The most
prevalent symptom type appears in infected plants as a wilting and
chlorosis of two or more lower leaves...
To study the association between Fusarium root-rot resistance
(Fusarium solani f. sp. phaseoli) and economically inportant characteristics
of beans, 2259 lines each consisting of 30 plants were used.
The lines were randomly selected for root-rot reaction, but were
selected for differences in vigor and differences in plant and seed
pigments,...
Published January 1949. 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
Published September 1964. 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
Fiber Bragg grating sensors have been constantly researched for the last ten years and have finally begun to find use in the commercial market. However, one of the major factors limiting their widespread use is their system cost. Their lightweight, flexibility, electromagnetic immunity, and small size make fiber Bragg grating...
Twelve chemicals (Busan 72, Chloropicrin, Dacthal, Dexon,
Duter, EP 161, Lanstan, Methyl bromide, Phaltan, Vapam, Vidden D,
Vorlex) were tested to determine their effect on populations of certain
important soil-borne microorganisms including the onion pink root
fungus Pyrenochaeta terrestris. The soil used was from a field in
Malheur County, Oregon...
In vitro tests showed mycelial growth of Pyrenochaeta
terrestris was inhibited by root and bulb extracts from the pink root
resistant onion cultivar Nebuka, but not by extracts from the susceptible
Southport White Globe. The active principle was shown to be
fungistatic rather than fungicidal. It is present in both...
A publication containing advice on a wide range of gardening topics, including composting, container gardens, fall/winter gardens, fertilizing, insect pests, plant diseases, planting guidelines, raised beds, site selection, slugs, soil improvement, tilling, warm-season crops, watering, and weeds. Includes regional tips for various parts of Oregon.
Published January 1974. 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
Revised March 1949. 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
This study explores Oregonians’ attitudes about and perceptions of public education. Specifically, perceptions about education quality were analyzed, looking at the perceived quality of education today and how it has changed over the last 5 years. Questions posed to respondents about education funding, explored views on additional state funding needed...
Just like the in-and-out movement of air in a human lung, the living parts of the forest have regular rhythms of exchange with the air. Across North America, a network of more than 90 towers called AmeriFlux monitors this daily breathing of forests, grasslands, croplands, and shrublands.
Published April 1952. 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
Published July 1963. 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
Published July 1962. 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
From the 1860s into the 1920s Edward Sylvester Morse (1838-1925) was a staunch advocate of Darwinian evolution and of science education in the U. S. and likewise for several years in Japan. He had a major impact on the American public’s understanding of evolution, both before and after he became...
Nest counts from the largest subpopulation of the loggerhead sea turtle (Caretta caretta) in the Atlantic, peninsular Florida, have been declining since 1998. Analyzing trends of nests and adult females is insufficient to determine the overall status of a sea turtle population, due to variation in nesting frequency and a...
Progenies of two bean crosses were studied for inheritance of resistance to dry root rot caused by Fusarium solani f. phaseoli. O.S.C. 22 (P. vulgaris) was used in both crosses as the susceptible parent. A Mexican line (P. vulgaris) and a line 2014 of the runner bean (P. coccineus) were...
In Oregon, property tax revolts and school equalization measures have led to increasingly unstable and more non-discretionary public funding for schools. As a result, public schools are turning to private donations to provide both basic and supplemental educational opportunities. Some schools and districts are raising hundreds of thousands of dollars,...
There have been years of stalled K-12 school finance reform efforts in Idaho, yet it was unclear what key Idaho education interest groups currently thought about how Idaho funds its public schools. Therefore, this project explored the institutional perspectives and beliefs of K-12 Idaho education stakeholders regarding the Idaho K-12...
Published April 1959. 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 negative effects of poverty on childhood academic outcomes are well documented by current research. Children in poverty experience pronounced positive effects of familial involvement on these same academic outcomes. Unfortunately children in poverty experience low levels of familial involvement. Current familial involvement policy is centered in the school environment....
Experiments are reported which demonstrate that a cobalt deficiency
in R. meliloti results in a decreased cytochrome content of
bacterial cells. It is concluded that the effect of cobalt deficiency
on cytochrome content of Rhizobium cells and on the leghemoglobin
content of nodules possibly may be explained by an effect...
This MPP essay examines how states expand access to nutritious food for low-income families, focusing specifically on policies related to the Supplemental Nutrition Assistance Program (SNAP) and farmers’ markets. Coalitions made up of nonprofits focused on hunger, farmers, and health collaborate to impact relevant policies in their respective states. The...
Published July 1957. 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
Published April 1958. 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
Published January 1969. 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 exchange of carbon on earth is one of the fundamental processes that sustains life and regulates climate. Since the onset of the Industrial Revolution, the burning of fossil fuels and anthropogenic land conversion have altered the carbon cycle, increasing carbon dioxide in the atmosphere to levels that are unprecedented...
Methane is a product of biogeochemical processes which respond to changes in climate. The history of atmospheric methane is recorded by ice cores providing insight into past changes in these biogeochemical processes. This dissertation is comprised of three studies which focus on centennial- and millenial-scale variability of methane from ice...
The necessity for the evaluation of training methods on a between
methods basis is suggested. Current methods of training evaluations
are considered, and found to be generally deficient for their
lack of between technique comparisons. The necessity for an outline
of planned comparative analysis of training methods is indicated and...
Studying human’s ability to estimate temporal durations could lead to a greater
understanding of our cognitive abilities as well as the processes that underlie temporal
estimation. It has been shown through previous research that time and number may be
interconnected cognitively and that the magnitude of one may alter the...
This thesis presents a novel microlamination architecture that enables the large scale integration of valves into low cost micro energy and chemical systems via membrane entrapment. Polycarbonate layers embossed with microfluidic channels were bonded by ultrasonic welding of raised embossed protrusions that penetrate though the PDMS membranes. The bonding pressure...
Recent developments in digital communications at microwave frequencies have revealed that local oscillator phase noise is often a factor in the bit error rate (BER) analysis. Digital signals transported across microwave radio links acquire waveform jitter from local oscillator phase noise. As jitter increases so does BER.
The main goals...
The wind and thermodynamic fields associated with eastern
Atlantic cloud clusters are studied using radiosonde data from
the Global Atmospheric Research Program Atlantic Tropical Experiment
(GATE). These data are from the gridded set of winds prepared
by Dr. Katsuyuki Ooyama (AOML-NOAA) and Dr. Jan-Hwa Chu
(SSEC, University of Wisconsin, Madison)...
Foliage of Douglas-fir seedlings [Pseudotsuga menziesii (Mirb.) Franco] from two contrasting environments was sampled during progressive stages of two consecutive cycles of induced drought for leaf resistance, plant water potential , and abscisic acid content (ABA). One group of seedlings was placed in a controlled environment room while another group...
Cercocarpus ledifolius (curlleaf mountain- mahogany), a small, hardwood evergreen tree, was studied to provide information on germination and initial seedling growth characteristics, and the species' relationship to its environment.and associated vegetation. Exceptional germination for this species resulted from both a wet cold treatment at 4°C for 170 days (88 percent),...
Published January 1961. 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
Capacitor discharge welding (CDW) is a rapid solidification joining process under
the influence of one-dimensional thermal gradients. Although CDW is useful for joining
small parts and dissimilar metals, CD welded joints have a large variability in weld
strength. CDW is not widely accepted because of a lack of automated process...
A self-powered neutron detector (SPND) is a device that, coupled with a current meter, provides a readout proportional to neutron population. This thesis discusses the design parameters of an array of such devices, their characteristics, and the use of these devices as a self-powered neutron spectrometer (SPNS) to provide information...
Increasing land fragmentation, environmental regulations and neighbors'
concerns pose significant challenges to forest owners at the urban fringe, whose
properties are physically caught between rural landscapes and continually expanding
urban centers. Using Oregon's Soap Creek Watershed as a study site, we paired
qualitative and quantitative methods to identify stakeholders, their...
Published January 1964. 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
Presented here is an in depth comparison of the Octopus dofleini hemocyanin paralogues, designated A and G. The protein sequences coded by these genes are each comprised of seven oxygen-binding units, or functional units (FU-a to FU-g). Each FU is approximately 400 amino acids in length and a linker region...
The purpose of this paper is to provide, at a basic level,
product layouts for an order picking warehouse that will minimize
average order picking time. A statistical model is developed to
ensure that optimal results rather than just 'good' results are
obtained. It is shown that simple but general...
Most studies suggest that LGBTQ+ young adults make up between 20 and 40 percent of the houseless young adult population (Edidin, Ganim, Hunter, and Karnik 2011; Nolan 2006). However, LGBTQ+ young adults compose only 1.3–3.8% of the general young adult population (Rosario, Schrimshaw, and Hunter 2012). Thus LGBTQ+ young adults...
Western redcedar, western hemlock, and Douglas-fir seedlings were transplanted into pots in one of two soils representative of high and low levels of available NO3 (and total N). The soils were collected from sites at Cascade Head (Oregon Coast) and Wind River (Washington Cascades). Whole plant and component relative dry...
One's ability to determine the cause and effect nature events is important for navigating within the social realm. However, the ability to determine these relationships is not always as clear. According to Weary and Edwards (1996) causal uncertainty (CU) is the result of an individual perceiving themselves as someone who...
Much has been written concerning the determination
of a single sampling plan given two points on the operating characteristic (OC) curve. A computer program is
presented which will provide minimum sample size for
single sample attribute sampling plans. The program
provides sampling plans based on the binomial distribution. It incorporates...
The economic aspects of quality control have received wide concern since its developmental stages, however, they have not been sufficiently explored. Moreover, as the need for complex products of high precision and reliability increases, most industrial firms have experienced some difficulties in meeting that need at reasonable costs with their...
This thesis focuses on the investigation of extraterrestrial tracers Ir, Pt and 3He in polar ice cores. These tracers may be used to identify characteristics of interplanetary dust particles, and to quantify the flux of extraterrestrial material during impact events, certain volcanic eruptions, and stable background periods. In the first...
Pets are reshaping human lifestyles in countries around the world. More people than ever include pets as part of their family. Organizations including the Society for Companion Animal Studies (SCAS) and the Human Animal Bond Research Institute (HABRI) have conducted and sponsored a wealth of research into human-companion animal interactions...
Plywood production scheduling for years has been
considered, more or less, a sacred activity in which only
a select group of individuals with the experience and
knowledge could take part. With the advancements in
computer technology and related fields, the plywood
industry is in a position where more people can...
The objective of this research was to investigate
the physiological effects of body posture on cycling.
The familiar positions of bicycle riding have been the
touring posture (hands stretched on top handlebar) and
the racing posture (hands bent at the elbow, with the
back horizontal). However, a relatively new stance...
Oregon has one of the five highest homeless occupancy rates in the U.S., according to the Annual Homeless Assessment Report (2021). Using the current governor of Oregon’s (Tina Kotek) plan to decrease homelessness, which focuses primarily on housing developments and strategies, this study will first examine the merits of permanent...
A comparison of two procedures which allocate inspection effort
within a production sequence is presented here. The concern
for quality and the need to hold down the costs of quality has resulted
in mathematical models which locate inspection so that the
desired quality is attained at a minimum cost.
In...
The child welfare system was established in the 1935 Social Security Act to help families and their children. Children have been the inspiration for protection and assistance among families especially those living in poverty. Previous research aims to analyze the associations between a child’s living arrangements and several child outcomes....
Using Richard Matland’s ambiguity/conflict model of policy implementation, this research examines the connections that agencies and organizations in one rural county, Klamath, and one urban county, Multnomah, in Oregon utilize to implement a particular state policy. The policy being examined is ORS 418.746-800, which mandates the use of Multidisciplinary Teams...
Due to past hiring practices U.S. federal agencies have workforces that do not match the diversity of the populations they serve. In 2011, the Partnership for Public Service found that the United States Forest Service (USFS) ranked number 149 out of 206 agencies in the category of ‘Support for Diversity,’...
There is a growing movement in the U.S., and throughout the world, involving top down government bureaucracies or government agencies within the natural resources field, to develop new and innovative processes and structures for integrating societal viewpoints into agency decision-making. This study examines Urban Matters, a community of practice within...
Three studies tested the hypothesis that existential threats will be negatively associated with attitudes toward different kinds of freedom. Existential threats experienced as Death Anxiety and Belief in a Dangerous World were negatively associated with attitudes toward Freedom To behave in a desired manner and positively associated with the idea...
Empathy is considered a significant motivator of prosocial behavior. Increasing evidence suggests that feelings of personal distress associated with empathy may be stronger or weaker according to the form of perspective taking that an empathizer utilizes. The aim of the present study was to further quantify the stress consequences and...
The Narrative Policy Framework (NPF) has emerged as a method of understanding how stories and evidence are portrayed within policy arenas to support policy discussions and what end goals these policy narratives aim to meet. This study applies the Narrative Policy framework to policy narratives used to discuss and share...
In 2011, Governor John Kitzhaber, along with the Oregon legislature, affirmed a clear and ambitious goal for the State. The 40-40-20 goal states that by 2025, 40% of adult Oregonians will have an Associates degree or a meaningful postsecondary certificate, 40% will hold a Bachelors degree or advance degree and...
The undisputed cost-effectiveness of the anti-homelessness program “Housing First” is well established in the empirical literature, but fewer studies have considered the impact of the program on individual residents. This mixed-methods study examines the lives of a cohort of residents in a Portland-based Housing First project, seeking to determine whether...
Both Buddhist and psychological theory postulate that present actions will influence future perceptions, judgments, and behaviors in a concordant manner. While Buddhists explain these effects in the context of karmic theory, psychologists consider these effects of construct activation and chronic construct accessibility. The present study sought to apply social psychological...
Definitions of child poverty and measurement approaches are directly linked to poverty reduction strategies. The definition determines the measure and the measure, in turn, informs policies, which can subsequently reshape measurement approaches. Applying human rights approach and using method of document analysis, this research explores how the conceptualization and measurement...
For several years researchers have investigated how teachers’ beliefs
impact a classroom. Equally important to consider when striving to improve
education are the beliefs held by the students. College Algebra is an important
class for many collegiate students, and gaining an insight into their beliefs about
mathematics and desires for...
Water in the U.S. West faces considerable challenges and uncertainties. Climate change has intensified weather extremes, threatening the water sources that support the region’s many stakeholders. Urban water providers are among the stakeholders contending with the challenge of providing reliable water supplies to their growing populations. Recognizing the critical role...
People in the US and Europe eat the most meat worldwide, lose or waste about 20% of this product overall, and they waste the most food per capita. Food waste is currently addressed as an issue of volume, so programs and policies target foods that are wasted more by weight...
The State of California uses the Resource Family Approval Program (RFA) to approve resource family homes (foster and adoptive homes). This program is the responsibility of each county to implement and manage. The RFA program was created to be much more family-friendly and provide an approval process that puts the...
Pesticides can often be toxic and for this reason their methods and quantities of application are extremely regulated. Pesticide applicators are at risk of permanently damaging their health from exposure to pesticides. In order to ensure that these employees have the proper information to protect themselves, they are required to...
THE PROBLEM. The problem was to study the recreation resource-
user and to determine attitudes, characteristics and relationships
between selected variables common to these users.
PURPOSE OF THE STUDY. The purpose of the study was to
examine:
1) Who are the recreation resource-users of the Bend Ranger
District, Deschutes National...
Wildfires across the Western United States, specifically in California have increased in size and intensity in recent decades. These fires are encroaching on California’s Wildland Urban-Interface (WUI), often with devastating results. Most recently, these destructive results were displayed in the 2018 fire season in the Camp and Carr Fires and...
Interweaving perspectives from both social cognitive psychology and Tibetan Buddhism, the present study examined common and differential effects of two styles of meditation: Loving-kindness meditation (LKM) and mindfulness meditation (MM). Psychological theories of construct accessibility postulate that cognitive constructs activated frequently are more readily available for processing stimuli. Researchers in...