The purpose of this study was to compare the performance
between high school students with esteem needs and those with
security needs in discovering a two-second delay between correct
response and feedback in a paired-associated learning task, Subjects
had to determine which one of seven possible responses (digits) to a...
The purpose of this investigation was to develop a
valid and reliable instrument to assess Oregon high school
students' nutrition information.
The following steps were taken in order to achieve this
First, a review of the literature pertaining to high
school nutrition curriculum was conducted.
Second, numerous published tests...
The hemlock woolly adelgid, Adelges tsugae, is causing widespread mortality of eastern hemlock, Tsuga canadensis, in the eastern United States. In the West, A. tsugae causes negligible damage to western hemlock, Tsuga heterophylla. Host tolerance traits and presence of endemic predators may be contributing to the relative tolerance of western...
The hemlock woolly adelgid (Hemiptera: Adelgidae: Adelges tsugae; HWA) is an invasive and damaging pest on hemlock in eastern North America. HWA is native to the Pacific Northwest, where it does not damage hemlock. In support of classical biological control of HWA in eastern North America, abundances of native predators...
The colicidal efficiency of chlorine in both settled and unsettled
trickling filter effluent samples was determined by means of a series
of tests in which each sample was analyzed, at given time intervals,
for suspended solids, pH, residual chlorine (orthotolidine and
iodometric) and coliform count. A dye-tracer study, using Rhodamine...
Beginning with the discovery of x-rays by Wilhelm
Konrad Roentgen in 1895, man has had the capacity to
greatly increase radiation levels of his environment,
especially with the advent of nuclear weapons in recent
years. Radioisotopes are finding progressively wider
use in medicine, research, power production, etc., with
This study provides an empirical test of the Bockstael-McConnell
(1980) household production function (HPF) framework for evaluating wildlife recreation. This is perhaps the first study in which
both taste and technology parameters have been estimated with a
theoretical model specification. The results suggest that for
steelhead sport fishing in Oregon,...
The use of Native American fire regimes evolved in the Klamath-Siskiyou bioregion over millennia. A mixture of Native American and Euro-American socio-cultural management has developed from adaptations to climate, topography, ecological processes, and land use practices. This research incorporates Traditional Ecological Knowledge (TEK) to partially examine the role of tribal...
A study was conducted over a two year period, 1973 through
1974, on perennial ryegrass-subclover pastures with stocking rates
of 7.4 (moderate), 9. 9 (heavy), and 12.4 (overstocked) ewes per
hectare to establish guidelines on stocking intensity for dryland
improved pastures in western Oregon. Climatic conditions varied
annually and caused...