Index Catalog // ScholarsArchive@OSU

Reproductive isolation and interspecific hybridization in the threatened species, Sidalcea nelsoniana

Creator:: Gisler, Steven D.
Abstract:: In addition to its longstanding recognition as an influential evolutionary process, interspecific hybridization is increasingly regarded as a potential threat to the genetic integrity and survival of rare plant species, manifested through gamete wasting, increased pest and disease pressures, outbreeding depression, competitive exclusion, and genetic assimilation. Alternatively, hybridization has also...
Resource Type:: Masters Thesis

Defining micro-habitat relationships for juvenile black rockfish, Sebastes melanops

Creator:: Mann, Marion E.
Abstract:: The functioning of marine habitats needs to be understood in the context of the ecological relationships and associations between organisms and the physical and biogenic environment they inhabit. Thus, it becomes important to explore and define habitat features which contribute to these relationships and which are important in the life...
Resource Type:: Masters Thesis
Full Text:: THE THESIS OF Marion E. Mann for the degree of Master of Science in Fisheries Science on May 27

Genres at Play : History, Tragedy, and Comedy in Shakespeare's Richard II

Creator:: Wiley, Marie
Abstract:: This thesis examines a range of generic influences in William Shakespeare's Richard II. By exploring the play's references to conflicting interpretations of history from different generic perspectives, I hope to advance a more nuanced reading of the play's dynamic staging of history. In Chapter One, I suggest that Richard II...
Resource Type:: Masters Thesis
Full Text:: committee members Richmond Barbour, Evan Gottlieb, and Marion Rossi for their enthusiasm and thought

An evaluation of the use of menu risk assessment as a tool in food service protection programs

Creator:: Gray, Lori A.
Abstract:: Despite the increase in information on the causes of foodborne disease, outbreaks continue to be a major preventable public health problem. Current food service establishment inspection programs, however, are not designed to assess the potential of risk for foodborne disease and do not focus prevention efforts where food service problems...
Resource Type:: Masters Thesis
Full Text:: for high risk, moderate risk and low risk food service establishments in Marion County, Oregon

Information and analysis techniques for making crop selection decisions

Creator:: Bristol, Roger Dale
Abstract:: Twenty managers of large diversified irrigated farms in the Willamette Valley area of Oregon were interviewed about the economic information and analysis techniques they use when making crop selection decisions. Two community college farm management instructors, two agricultural lenders, and two certified public accountants working with farmers were interviewed about...
Resource Type:: Masters Thesis
Full Text:: Analysis Techniques for Making Crop Selection Decisions Abstract approved: er— A. Gene Nelson

Determination of Trade-offs between Wetland Ecosystem Services in an Agricultural Landscape

Creator:: Garrison, Stacey L.
Abstract:: Wetland restoration mitigates effects of agricultural development on water quality, flooding, and habitat loss. Multi-objective optimization for wetland locations and sizes has not included objective functions for water quality, hydrology, and habitat in unison, limiting analysis of trade-offs among these ecosystem services. This study establishes two methods to improve the...
Resource Type:: Masters Thesis
Full Text:: provide habitat for migrating and resident species, particularly birds (Nelson & Wlosinki 1999). The MRB

N processing in grass seed crops differing in soil drainage and disturbance in western Oregon, U.S.A.

Creator:: Nelson, Machelle A.
Abstract:: A better understanding of grass seed crop and soil fertility is necessary to improve fertilizer practices and preserving water quality in Willamette Valley, Oregon, where 55% of land-use is in grass seed production that directly impacts adjacent waterways containing native protected fish species. I determined tillage effects on soil N...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Machelle A. Nelson for the degree

A Study of Urban Vegetable Garden and their Soils in Corvallis and Portland, OR

Creator:: Nelson, Michael, II
Abstract:: Urban agriculture (UA) is defined as the production of food crops or livestock within urban areas. Despite its popularity in the United States, research into UA systems suffers from a general underrepresentation of commercial urban systems. As a result, urban growers often have unique technological needs that are unmet by...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Michael Nelson II for the degree of Master of Science in Horticulture presented on May 31

Dynamic measurement of Timoshenko beam shear coefficient

Creator:: Nelson, Daniel Loren
Abstract:: The Timoshenko beam theory, as an engineering alternative to the elementary and exact theories, introduces a factor, k', called the shear coefficient which has been given various interpretations and values. It is the objective of this study to experimentally evaluate k' for a brass bar of rectangular cross-section. Analytical results...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF DANIEL LOREN NELSON for the M. S. (Name) (Degree) in MECHANICAL

Nitrogen partitioning in 'Marion' and 'Kotata' blackberries grown in alternate-year production

Creator:: Mohadjer, Paula
Resource Type:: Masters Thesis
Full Text:: 'Marion' and 'Kotata' Blackberries Grown in Alternate-Year Production. Abstract approved

ScholarsArchive@OSU

Reproductive isolation and interspecific hybridization in the threatened species, Sidalcea nelsoniana

Defining micro-habitat relationships for juvenile black rockfish, Sebastes melanops

Genres at Play : History, Tragedy, and Comedy in Shakespeare's Richard II

An evaluation of the use of menu risk assessment as a tool in food service protection programs

Information and analysis techniques for making crop selection decisions

Determination of Trade-offs between Wetland Ecosystem Services in an Agricultural Landscape

N processing in grass seed crops differing in soil drainage and disturbance in western Oregon, U.S.A.

A Study of Urban Vegetable Garden and their Soils in Corvallis and Portland, OR

Dynamic measurement of Timoshenko beam shear coefficient

Nitrogen partitioning in 'Marion' and 'Kotata' blackberries grown in alternate-year production

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