Studies were conducted to determine the competitive ability of
medusahead, Taeniatherum asperum (Sim.), for nitrogen when grown in
association with perennial range grass species. The method used to
determine this competitive ability was to compare the dry weight,
percent nitrogen, and total nitrogen of medusahead and perennial
wheatgrass species growing...
This study has been concerned with the patterns of vegetative changes which occur during the first five years following logging and burning on Douglas-fir clear cuts. Knowledge of the successional sequence in the coastal forests of western Oregon is of primary importance to those concerned with the management of this...
This study was conducted to (1) determine and assess perceptual
differences among graduate advisors, administrators, and graduate
students regarding the roles and functions of graduate advisors;
(2) determine the appropriate roles and functions of graduate
advisors; and (3) provide constructive feedback to graduate advisors.
A sample population of 415 was...
Photoacclimation is the process by which plants and phytoplankton adjust the concentration and composition of their photosynthetic machinery (i.e. their photoacclimation state) in response to changes in their light or nutrient environment. The purpose of photoacclimation is to balance the rate at which light energy is absorbed with the energetic...
Hume’s division of truth into agreement with matters of fact or relations of ideas casts doubt on our capacity to have moral knowledge, as moral propositions do not seem to fall obviously into either category. This thesis looks at how two views, ‘descriptive moral functionalism’ and ‘moral concept essentialism’, try...
The objective of this dissertation is to examine federally administered soil conservation policy within the United States and the broadly defined Columbia River Basin in the US Northwest. I accomplish this in five chapters. In the first chapter I provide background information for the study. In the second chapter I...
This thesis analyzes the emerging technology of hydraulic fracturing and shale gas extraction process through a pluralistic philosophical approach. Rather than defending traditional values in nature, such as intrinsic value, I defend a metaphilosophical pragmatism centered on policy implications. I argue that different philosophical positions will, most of the time,...
Institutionalized oppression is a large multifaceted system that is regularly unrecognized and misunderstood. Marilyn Frye’s birdcage analogy of oppression (1983) demonstrates why this complex system is often invisible, yet always immobilizing. In this analogy, Frye relates the various manifestations of oppressions to the wires of a birdcage, demonstrating that it...