Marine algae have been recognized as a rich resource of new
and unusual organic molecules with diverse biological properties.
The current need to develop new antifungal, anticancer, antibiotic
and antiviral drugs has led to an intense research effort into the
discovery, isolation and structure determination of potential
medicinal agents from...
Published March 1974. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Riparian forests provide a myriad of ecosystem functions for adjacent streams and rivers, and due to these linkages, changes in riparian forest conditions can have direct implications for stream ecosystems. Resource managers in the coast redwood forests (Sequoia sempervirens) of northern California (USA) are actively thinning second-growth stands to accelerate...
Hereditary variation is a vital component in the development of new and improved cultivars of landscape plants. Sources of hereditary variation include naturally occurring variation, recombination due to controlled crosses, artificial mutagenesis, and genetic modification via biotechnology. Here I explore all methods with the exception of genetic modification via biotechnology....
This dissertation is informally divided into three major sections. In the first section (Chapter 2) I use data from field mapping, isotopic geochronology, whole rock geochemistry and trace element concentrations in zircons to examine the petrology, geochemistry and ages of the Haquira East porphyry copper deposit of southern Peru. In...
Circular dichroism (CD) spectra were obtained for bacteriophage T4 lysozyme and three of its mutants in the presence and absence of colloidal silica nanoparticles. Mutant lysozymes were produced by substitution of the isoleucine at position 3 with tryptophan, cysteine and leucine. Each substitution resulted in an altered structural stability, quantified...
Collective migration in animal groups is often guided by distributed leader agents that influence their peers by modulating their motion behaviors. Distributed leadership is a promising navigation strategy for artificial swarms, but designing the leaders’ controllers is difficult due to the swarm’s collective emergent behaviors. The presented research formulates a...
Native freshwater fish biodiversily is imperiled in Oregon with 36 species
or sub-species listed by the State of Oregon as sensitive, threatened, or endangered, and
9 species or sub-species listed as endangered or threatened under the federal
Endangered Species Act. Understanding and managing biodiversity is critical to its
conservation. Using...
Ms. Miles is Missing—the beginning of a novel—is the story of a woman who, in her early thirties comes to realize that the life she is living is not the life she wants. She yearns for her lost childhood, and tries to come to terms with her mother’s death. Martha...
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...