Space flight results in loss of mass and function in skeletal
muscle. Data from manned flights and animal biosatellites give
evidence of possible changes in neuromuscular interactions.
Components at the neuromuscular junction are a potential site of
action for this space-induced muscle atrophy. We examined the
nicotinic acetylcholine receptor population...
The feeding ecology of a common temperate mesoherbivore, the oligophagous sea slug Placida dendritica (Gastropoda: Opisthobranchia: Ascoglossa), was examined from April 1985 to June 1989. Along the central coast of Oregon, Placida consumed three host species: the low intertidal green algae Codium setchellii, C. fragile, and Bryopsis corticulans. Individual slugs...
A study was initiated to 1) determine which species of
gastrointestinal nematodes are present in cattle in selected areas of
Oregon, 2) examine the seasonal abundance of these nematodes as an
indicator of periods of transmission and 3) determine at what season
developmental inhibition occurs in the major genera of...
The purpose of this study was to examine the responses to a mail
survey of a random sample of female subjects (Ss), who at the time of the
study were members of the Oregon Public Employees Union employed as
clerical specialists by the State of Oregon, in order to: 1....
The individual through earliest recorded history reveals contradictory views of the
human life-span. "Am I a free and unique individual, able to make choices and decide my
own destiny?, or, "Am I only a victim of circumstance, a speck of dust in the universe's
whirlwind of fate?"
Each view is...
During the summer of 1986, an archaeological testing project was
completed at seven prehistoric campsites primarily located in the
upper Deschutes River Basin of central Oregon. Testing was focused on
two low-density "lithic scatters", an archaelogical site type which is
especially abundant in this obsidian-rich region but which, to date,...
Using the counterflow virtual impactor, a new instrument for sampling cloud droplets, measurable levels of light-absorbing material were found to exist inside droplets in stratocumulus clouds off the coast of southern California. Eighty percent of the samples of droplet residue material had light absorption coefficients ranging from 6 to 20...
This thesis presents our investigation of the problem of creating an intelligent tutor for solving algebra word problems that employs effective pedagogy. Among our major concerns are the problems of sufficient knowledge and proper knowledge organization. From student protocols and test papers, we derived sets of general purpose strategic rules...
The Columbia River Gillnetter is the pilot of the Lower Columbia River commercial fishing industry, keeping fishermen and the public in touch with today's important issues.