A study of Ammophila, a,renaria (L. ) Link, (European beachgrass) plantations was carried out on sand dunes along the Oregon coast to observe the vegetation changes which occur over a period of years. Control of moving sand has been important on a world-wide basis for many years. In Oregon this...
Arctic cod (Boreogadus saida) is an ecologically significant species that plays a critical role channeling energy throughout the Arctic marine food web. Arctic cod is uniquely adapted to occupy ice edge habitats, however, a basic understanding of its larval physiology and habitat requirements is lacking due to widespread sea ice...
Anoxic sediment overlain by oxic seawater establishes a voltage gradient on the order of 0.7-0.8V across the sediment-water interface. This study follows Reimers et al. (2001) and Tender et al. (2002) who reported the development of a seafloor fuel cell to harvest electrical energy from this potential difference. Prototype fuel...
The major nutrient requirements of the blue-green alga Anabaena
spiroides Klebahn were investigated. It was hoped that the results would allow the development of a balanced culture medium in
which the alga would exhibit rapid growth and retain typical morphological characteristics.
The alga was isolated from Upper Klamath Lake, Oregon,...
Carbonation of Carbon is of concern for reinforced concrete bridges. While long-term environmental deterioration of structures is unavoidable, protective design allows a structure to fulfill its service life without any significant serviceability or strength loss due to deterioration. Understanding the process of concrete carbonation and the effect it has on...
Oögenesis in the sea urchin Strongylocentrotus purpuratus
was studied by histological methods and by histochemical techniques
for polysaccharides, lipids, and nucleic acids Urchins were
collected at Yaquina Head, Oregon at regular intervals between
April 1966 and March 1967. An attempt was made to correlate
seasonal variations in the coastal water...
Oregon has been moving forward with biomass energy development. Large-scale biomass power and cogeneration (producing heat and electricity) have been the focus of the last twenty-five years, while small-scale thermal bioenergy installations (producing heat) have dramatically increased during the last decade. In eastern Oregon, bioenergy is closely linked to restoration...
The purposes of this study were to determine the
effects of level (elementary and secondary), program
status (beginning, midway, and student teaching), and
demongraphic variables (experience, success, college
supervisor support, supervising teacher support,
additional support services, and school type) on
preservice teachers' attitudes toward mainstreaming. The
population consisted of 91...
The central purpose of this study was to develop a model for
the examination of productivity in Adult Basic Education. To that
end, an instrument developed for use in the field of business was
adapted for use with an educational audience. It examined the
relationship of adult education staff decision...
In the mild climate of the Pacific Northwest, the harvesting of
deciduous shade trees in wholesale nurseries is prolonged from
October to January because of autumn growth and prolonged leaf
retention. Economically, it is advantageous to defoliate nursery trees
at the earliest possible date. Premature defoliation, however, can
cause die...
