The L²-error estimates are established for the continuous time Faedo-Galerkin approximation to solutions of a linear parabolic initial boundary value problem that has elliptic part of order 2m. Properties of analytic semigroups are used to obtain these estimates directly from the L²-estimates for the corresponding steady state elliptic problem under...
Earlier papers by Brown [1973] and Brown and Beattie [1975] showed, for the common case of positively interrelated explanatory variables, that the ridge regression estimator of Hoerl and Kennard [1970] gave much larger bias and mean square error (MSE) for models with unlike signs. To avoid this excessive bias and...
This report consists of tables summarizing data regarding streams receiving hatchery-reared rainbow trout since 1952. It includes data such as sources, sizes of fish, and water temperatures at the planting sites. It also averages data from creel reports from 1965-1972.
The Upper Kiamath Valley and Klamath Marsh areas of
south-central Oregon comprise the summer range for a modern
system of transhumance agriculture. Approximately 72,000
head of cattle are annually trucked from these relatively
small Kiamath pastures to winter pastures scattered throughout
the Sacramento Valley. Field research indicates that
the development...
Producing fruit in alternate years (A-Y) in Thornless Evergreen blackberries is economically feasible and a horticulturally sound management practice. The cultural advantages are: less labor is required; pesticide and irrigation requirements are reduced; pesticide timing and application are improved; maturity of fruit is hastened; and mechanical damage to new canes...
Since the early 1950's, irrigation agriculture in Deschutes
County has evolved from a general diversified commercial farming structure,
to one almost completely dominated by part-time hobby farms.
Interrelated physical, economic, and social forces have been catalyst
to change in the local agricultural systems. The resultant patterns
may jeopardize the future...
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.
Bimonthly plankton samples were collected from 1969 through
1971 along a transect off the central Oregon continental shelf (44°
39. l'N) to document the species of crab larvae present, their seasonality,
and their onshore-offshore distribution in relation to seasonal
changes in oceanographic conditions. A comprehensive key with
plates is given...
A vegetation classification based on concepts and methods developed by Daubenmire was used to identify five habitat types and their related phases on the Medicine Bow National Forest: Abies lasiocarpa/Vaccinium scoparium, including the Pinus contorta/Vaccinium scoparium community; Abies lasiocarpa/Carex geyeri, including the Pinus contorta/Carex geyeri community; Populus tremuloides/Carex geyeri; Pinus...
