Index Catalog // ScholarsArchive@OSU

Drought, dispersal, and community dynamics in arid-land streams

Creator:: Bogan, Michael T.
Abstract:: Understanding the mechanisms that regulate local species diversity and community structure is a perennial goal of ecology. Local community structure can be viewed as the result of numerous local and regional processes; these processes act as filters that reduce the regional species pool down to the observed local community. In...
Resource Type:: Dissertation
Full Text:: . © Copyright by Michael T. Bogan July 10, 2012 All Rights Reserved Drought, Dispersal, and

Diversity and community structure of aquatic insects in isolated montane desert streams

Creator:: Bogan, Michael T.
Abstract:: Local aquatic insect diversity and community structure is the result of multiple local and regional factors, and observed patterns depend upon the spatial and temporal scale under examination. Isolated stream systems in arid regions represent a new challenge in understanding the drivers of diversity and community structure, as most studies...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Michael T. Bogan for the degree of

Himeradine A : synthetic efforts towards himeradine A and related natural products, a Michael reaction focused approach

Creator:: Collett, Nathan D.
Abstract:: Lycopodium alkaloids have generated enormous amounts of interest from the scientific community, both as synthetic targets and for their medicinal properties. Herein is described work towards a unifying approach to large segments of the Lycopodium family. An organocatalyzed intramolecular heteroatom Michael reaction method, for the construction of piperidine and piperizine...
Resource Type:: Dissertation
Full Text:: Related Natural Products, a Michael Reaction Focused Approach. AN ABSTRACT OF THE DISSERTATION OF

Development of organocatalyzed, intramolecular heteroatom Michael addition and application towards alkaloid synthesis

Creator:: Carlson, Erik
Abstract:: Effective methods for the enantiopure formation of substituted piperidine rings are significantly important due to their presence in alkaloid products. A valuable method to form these ring systems would be via an intramolecular heteroatom Michael addition from the corresponding enone or enal. Described herein is a methodolgy that has been...
Resource Type:: Masters Thesis
Full Text:: Organocatalyzed, Intramolecular Heteroatom Michael Addition and Application Towards Alkaloid Synthesis

DNA-based identification of commercially important salmon and trout species (genera Oncorhynchus and Salmo) in North America

Creator:: Rasmussen, Rosalee S.
Abstract:: There are seven commercially important species of salmon and trout (genera Oncorhynchus and Salmo) in North America, many of which are closely related but command markedly different prices. The purpose of this research was to provide improved and novel methods for the detection of salmon species substitution on the commercial...
Resource Type:: Dissertation

Intrinsic and extrinsic quality of West Coast albacore tuna (Thunnus alalunga)

Creator:: Wheeler, Sena C.
Abstract:: The purpose of this study is to identify the intrinsic and extrinsic quality characteristics of West Coast albacore tuna (Thunnus alalunga). Albacore tuna were troll caught off the Oregon coast and transferred to the Oregon State University Seafood laboratory in Astoria, Oregon. Core samples were extracted from six designated body...
Resource Type:: Masters Thesis
Full Text:: Extrinsic Quality of West Coast Albacore Tuna (Thunnus alalunsd). Abstract approved: Michael T. Morris

The use of high pressure process to shuck oysters, reduce microbial load and extend shelf-life

Creator:: He, Haian
Abstract:: Whole oysters were processed under a series of pressures from 30,000 to 45,000 psi at different holding times (0, 1, and 2 min) and then stored at <4°C, for 27 d. During the shelf-life study, the quality of oysters was determined by measuring pH, moisture content, and microbial counts including...
Resource Type:: Masters Thesis
Full Text:: : Michael T. Morrissey Whole oysters were processed under a series of pressures from 30,000 to 45,000

Extraction and production of n-3 polyunsaturated fatty acid concentrate from Pacific sardines (Sardinops sagax)

Creator:: Okada, Tomoko
Abstract:: Intrinsic characteristics of Pacific sardines were determined. The lipid content in sardines was initially low (6.79%) in the beginning ofthe season, increased to 22.95% in mid-August, and decreased slightly by the end of September. An inverse correlation (R² = -0.90) was found between lipid and moisture content. Analysis showed that...
Resource Type:: Dissertation
Full Text:: like to express my sincere appreciation to my major professor, Dr. Michael T. Morrissey for his

Efficacy of water, sodium hypochlorite, peroxyacetic acid, and acidified sodium chlorite for reducing microorganisms on in-shell hazelnuts

Creator:: Weller, Lisa D.
Abstract:: Hazelnuts are commonly consumed raw and are valued for their numerous health benefits and antioxidant properties. Increased foodborne illness outbreaks associated with Salmonella and Escherichia coli O157:H7 contamination of tree nuts and peanuts generate a need for improving agricultural sanitation procedures. Food-safe chemical sanitizers have shown promise for reducing pathogenic...
Resource Type:: Masters Thesis
Full Text:: : ________________________________________________________________________ Michael T. Morrissey Hazelnuts are commonly consumed raw and are valued for their numerous

Effect of high pressure processing on the survival of Vibrio parahaemolyticus strains in pure culture and Pacific oysters

Creator:: Calik, Hakan
Abstract:: Different strains of Vibrio parahaemolyticus (Vp) in broth cultures and Vp-inoculated live Pacific oysters (Crassostrea gigas) were subjected to high pressure processing (HPP) at 241, 276, 310, and 345 MPa. Results showed Vp numbers were reduced by HPP in both pure culture and whole oysters. Vp inactivation was dependent on...
Resource Type:: Masters Thesis
Full Text:: Oysters. Abstract approved: __K Michael T. Morrissey Different strains of Vibrio parahaemolyticus

ScholarsArchive@OSU

Drought, dispersal, and community dynamics in arid-land streams

Diversity and community structure of aquatic insects in isolated montane desert streams

Himeradine A : synthetic efforts towards himeradine A and related natural products, a Michael reaction focused approach

Development of organocatalyzed, intramolecular heteroatom Michael addition and application towards alkaloid synthesis

DNA-based identification of commercially important salmon and trout species (genera Oncorhynchus and Salmo) in North America

Intrinsic and extrinsic quality of West Coast albacore tuna (Thunnus alalunga)

The use of high pressure process to shuck oysters, reduce microbial load and extend shelf-life

Extraction and production of n-3 polyunsaturated fatty acid concentrate from Pacific sardines (Sardinops sagax)

Efficacy of water, sodium hypochlorite, peroxyacetic acid, and acidified sodium chlorite for reducing microorganisms on in-shell hazelnuts

Effect of high pressure processing on the survival of Vibrio parahaemolyticus strains in pure culture and Pacific oysters

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