Currently, the Port of Portland is developing a 9, 410 acre area
at the confluence of the Columbia and Willamette Rivers in Multnomah
County, Oregon. This area will be developed for industrial, commercial,
and recreational use. The recreational development in the
North Portland Peninsula area, including the Rivergate Industrial
District,...
The major historical studies that have examined American
biology have emphasized the development of experimental biology at
the end of the nineteenth century. In this characterization, the
descriptive branch of biology has often been treated as less than
important and, in several cases, as a hindrance in the application
of...
An inexpensive method for calibrating an infrared analyzer to measure varying ranges of carbon dioxide partial pressures (Pco₂) is described. A discussion is made of the hydrographic (temperature, salinity, and sigma-t) and chemical (dissolved oxygen, AOU, Pco₂ pH, and nutrients) variables that were observed along the Newport hydrographic line in...
The purpose of this study was to compare the effectiveness of a
learner-centered teaching system and that of a conventional teaching of
basic electricity to university students. For this study 65 students
enrolled in basic electricity at Arizona State University in Tempe,
Arizona were used, distributed in two fall semester...
In this dissertation we construct a homology theory on the category of submersions which generalizes the homology of the base space with coefficients in the homology of the fiber as given by the E²-terms of the Serre spectral sequence of a fiber bundle. The main motivation for this new homology...
The objectives of this study were to evaluate environmental
factors influencing use of several plant communities by cattle, elk
and deer; determine under story production by plant species and the
amount utilized by cattle, elk and deer in certain plant communities;
evaluate the interactions of range use between cattle, elk...