Ferrites have been used for various high frequency applications as bulk
materials. These applications, however, are limited to large dimension devices. In
this thesis, thin film ferrites were deposited from a low temperature solution-based
deposition process that is suitable for micro-scale high frequency applications. The
low temperature nature of this...
Surface acoustic wave (SAW) sensors are versatile devices that can be configured to sense a variety of measurands such as temperature and pressure. The potential use of surface acoustic wave devices for magnetic field detection is explored in this study. Compared to current magnetic field sensors, a sensor based on...
Negative feedback has become ubiquitous in science both as a
technique and as a conceptual tool. As a technique, negative feedback
has a long history; devices based in its use were made in
antiquity. It has only been during the last century, however, that
rigorous quantitiative methods have become associated...
This study examines the interactions between the scientific communities of the
Lawrence Berkeley Laboratory (LBL) and the Stanford Linear Accelerator Center
(SLAC) in the discovery of the tau lepton by physicist Martin Perl between 1973-
1977. Perl became interested in searching for heavy leptons through positron-electron
collision experiments using the...
This dissertation uses a new methodological approach for an in-depth analysis of three cartographic works. Studies within the discipline of the history of cartography have followed various methodologies throughout the past century. This dissertation argues that in order to come to a more complete understanding of how maps were produced...
L. C. Dunn (1893-1974) spent most of his scientific career conducting research in
developmental genetics as a member of the Zoology Department at Columbia
University in the City of New York. He had an accomplished scientific career
researching mutations in mice, which earned him respect from other geneticists and
scientists....
This thesis examines the cultural context in which Japanese children are constructing their
own perspective of the environment because in the development of environmental education in
Japan, the perspectives of children and teachers have not been taken into consideration. Although
educators have made efforts to give direction to environmental education,...
Spending time in a German speaking country may aid in vocabulary acquisition and production. This study hypothesized a concrete link between written language use and experiences abroad. Intermediate German students’ vocabulary uses in impromptu essays were evaluated by counting the number of total word, unique words, and content words. This...
A number of researchers view farmers’ markets as an appropriate vehicle for
re-embedding food markets into communities (O’Hara & Stagl, 2001, Feenstra, 2002,
Lyson, 2005). Amidst astounding growth in the number of farmers’ markets in the
United States in recent decades, many markets struggle and fail. Recent research
suggests that...
Fifty-two one-meter plankton net samples from four stations off Newport, Oregon, were examined for composition and abundance of euphausiids and copepods. They provided data on dominance, species associations and environmental relationships. The euphausiid-copepod population off Oregon is composed of 12 numerically dominant species. These species occurred in most of the...
The Tlingit Button Blanket was developed on the Northwest Coast of North America in the early 19th century as a result of the introduction of foreign materials brought by European explorers and traders in the late 18th century. The-Tlingit Indians substituted trade items for indigenous materials and integrated the resulting...
This compilation of theses and dissertations (a part of the OSU Bibliographic Series) for the period 1970-1977 reflects this university's emphasis on research and graduate study. It may be viewed as an indicator of the contributions made to the state of Oregon through graduate study and research at Oregon State...
Fifty-seven species of wildlife rely on or frequently use snags for breeding, roosting, or denning in Oregon and Washington. Several publications offer information on use of snags by wildlife, influence of management activities on snags and snag users, and approaches to managing snags to benefit wildlife. Because of the diverse...
The reading of world literature, literary works from cultures other than one’s own, offers
an effective means of creating greater awareness and sensitivity towards others. Research
on the subject makes it clear that world literature can help lay the groundwork for a sense
of world citizenship in students. To what...
A Mixed Reactant Single Chamber (MRSC) Fuel Cell is a relatively recent concept in the field of fuel cell engineering originally developed in the late 1950’s. Typical fuel cells have separated reactants (a separated fuel and oxidizer) that react on their usually non-selective electro-catalytic materials. A mixed reactant fuel cell...
Mycobacterium avium cause disseminated disease in immunocompromised people such as AIDS patients. Subsequent to crossing the intestinal epithelium, M. avium thrive within vacuoles in macrophages. The bacteria exhibit a different, more invasive, phenotype after being in macrophages compared to M. avium from laboratory conditions. We hypothesized that this intracellular phenotype...
This dissertation has two objectives. The first objective is to determine where best to situate the study of mentoring (i.e. the 'making of scientists') on the landscape of the history of science and science studies. This task is accomplished by establishing mentoring studies as a link between the robust body...
Multiparadigm programming languages are a recent development in the realm of programming languages. A multiparadigm programming language allows the use of multiple, differing programming paradigms without departing from a single, unified linguistic framework. Multiparadigm programming languages are claimed to have benefits to both pedagogy and complex application creation. The beneficial...
In this research, we have captured, in pattern form, key elements of programming and design in four programming paradigms (imperative, object-oriented, functional and logical) as well as multiparadigm programming. These pattern sets have formed a foundation upon which we were able to build a deeper understanding of multiparadigm programming and...
With the increasing effort to identify alternative methods of energy generation, extraction of ocean energy has gathered a large interest. Research and industry have begun considering wave energy as the next new alternative energy. The unique challenges of ocean energy requires a wave energy converter to be both robust and...
This case study describes the challenges that con-front the German publishing industry as it attempts to implement environmentally responsible purchas-ing of paper. German consumers are considered leaders in environmental awareness, and many actively sup-port environmental organizations. This case focuses on how industry and individual companies have responded to demands from...
John Archibald Wheeler (09 July 1911- ) is a familiar name to physicists and historians of physics alike. Among his many contributions to the corpus of knowledge, in 1939 John Wheeler and Niels Bohr co-authored the first paper on the generalized mechanism of nuclear fission. Beyond that seminal work, Wheeler...
Ecosystems are highly heterogeneous systems subjected to important levels of environmental variability; however, it is common in terrestrial biogeochemical models to assume homogeneous properties of the elements of the system or constant environmental conditions. For some processes, heterogeneity in these models is treated very simplistically, but there is not much...
Ocean Drilling Program Hole 896A (1°13.01'N, 83°43.39'W) is
in 3440 m of water east of the Galapagos Platform in the equatorial
eastern Pacific Ocean. At this site in 5.9 Ma crust, basement rocks
were recovered over the depth range of 195.1 meters below seafloor
(mbsf) to 469 mbsf. These rocks...
Stripe rust (Puccinia striiformis f. sp. tritici) has been receiving
increased attention in the USA since the appearance of more virulent races
detected in the past decade. These races caused yield losses even in areas
where the disease previously was rarely detected. Host plant resistance is the
most cost effective...
This thesis is an exploration of writing from two communities of practice addressing different aspects of hypertext--an electronic medium used to link text, images, and other content such that it can be accessed by users non-sequentially. In particular, I examine multiple narratives of hypertext development and key theoretically oriented approaches...
The diffusion of divalent nickel (Ni²⁺) from wet silica gels was investigated.
Silica gel is gaining interest as an encapsulation matrix for biological components.
The transport of biologically relevant species within the gel is determined by the
structural characteristics of the gel, which are in turn governed by synthesis
parameters....
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...
As interest grows in developing devices to harvest energy from ocean waves, tidal currents, and offshore wind, concerns over possible environmental effects from such devices also grow. One such concern is over the induced electric fields and the generated magnetic fields from generators and their associated submarine power cables in...
The purpose of this study is to evaluate the role of the agricultural sector's output and
trade on the economic growth and development of the State of Oregon. Economic base
theory is applied in the analysis of Oregon's Gross State Product (GSP) between 1977 and
1991. The basic sector is...
As the field of radiation therapy evolves new treatment techniques will be
established. An example of an evolving treatment technique is respiratory gated
radiation therapy (RGRT). Research and studies have shown that RGRT can be used
to account for tumor motion as a result of respiratory motion. With evolving
technology...
Photobiological hydrogen production from live cells of the cyanobacterium Synechocystis sp. PCC 6803 encapsulated in silica gel was investigated. Hydrogen is a dense energy carrier with potential to reduce dependence on fossil fuels, provided a renewable and sustainable means of production can be achieved. Under certain conditions, Synechocystis sp. PCC...
The ability to integrate designs from board level, multi-chip modules to single process solutions is highly attractive in today's PC multimedia industry. Saving board area and chip count will decrease the production cost of personal computing hardware and increase profitability. The ability to integrate analog circuit capability and it's reference...
Louis de Broglie received the Nobel Prize in Physics in 1929 following experimental
confirmation of his theory of the wave properties of the electron. De Broglie was an
anomaly among twentieth-century physicists: he was a prince by birth who would become
the seventh duc de Broglie. What did it mean...
Prior studies of modem scientific internationalism have been written primarily from
the point of view of scientists, with little regard to the influence of the state. This
study examines the state's role in international scientific relations. States sometimes
encouraged scientific internationalism; in the mid-twentieth century,t hey often
sought to restrict...
I focus on addressing knowledge gaps relating to management of cryptogams in Oregon's public lands in Pseudotsuga menziesii-Tsuga heterophylla forests on the west side of the Cascade Range and dryland steppe in the Cascade Range's rainshadow.
While a great deal of research has illustrated the importance of late-successional forests for...
The intent of this paper is to bring more attention to the mastery involved with film composition as an art form. The research focuses specifically on the life, style, influences, and works of John Williams as a conductor, film composer, and composer. It addresses his biography, filmography, and working relationships,...
In this thesis, I examine the ways in which the television series Twin Peaks represents
the feminine through a textual analysis of the character Audrey Home. Using reader-response
theory, I seek to show that while the series conforms to patriarchal media
conventions such as the male gaze and narrative stereotypes...