Side-scan sonar records in Oregon's Coos Bay estuary navigation
channels were obtained at intervals of two to three months during the
November 1974 - October 1975 time period from Coos Bay Channel Mile
11+50 to 15+20, and from a reach in the Marshfield Channel. A limited
side-scan survey effort was...
In this work a prompt gamma neutron activation analysis (PGNAA) facility has been designed, built, and characterized at the Oregon State University TRIGA® reactor. PGNAA is a technique used to determine the presence and quantity of trace elements such as boron, hydrogen and carbon which are more difficult to detect...
Riparian vegetation (trees > 10 cm dbh), woody debris (> 10 cm diam, > 1 m long), channel, and landform characteristics were inventoried in mature (80-150 yrs) and old-growth riparian areas (>250 yrs) selected from small tributaries of the Coos and Coquille River basins in southwestern Oregon. Basal area of...
A 24 bed community hospital was the setting where a comparison
of shared and traditional pharmacy services took place. This study
also provides a model for implementation of shared pharmacy
services for health care professionals faced with improving the
quality of patient care and controlling costs.
Curry General Hospital and...
Two organophosphates (Ruelene and Tiguvon) and two carbamates
(Sevin and Baygon) were administered topically at various sublethal
concentrations to cricket eggs. All the pesticides caused an immediate
decrease in the acetylcholinesterase (AChE) activity level in the
embryo, but the level usually returned to normal within three days
after dosage. The...
Visual estimation techniques were used to quantify habitat characteristics,
habitat type (pool, riffle) use and longitudinal distribution of steelhead
(Oncorhynchus mykiss), cutthroat trout (0. clarki), and coho salmon (0. kisutch)
in spring, summer and fall in 8.8 km of Cummins Creek, a basin in the central coast
of Oregon. Fish...
Responses of juvenile steelhead trout to changes in stream habitat resulting from an instream habitat rehabilitation project in Meadow Creek, Oregon were measured from 1991 through 1992 and compared to pre-treatment data from 1987 through 1990. Sixty nine pool-forming, and 59 channel-stabilizing log structures were constructed by the U.S. Forest...
Agronomic research documents a strong correlation
between the level of irrigation water applied and the level
of farm chemicals leached into water bodies. Consequently,
policies that cause farmers to alter irrigation water
management practices are likely to influence water quality.
Water markets are a potentially attractive method of
addressing agriculturally...