Index Catalog // ScholarsArchive@OSU

Milk production and progeny growth in crossbred sheep

Creator:: Torres-Hernandez, Glafiro
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE THESIS OF GLAFIRO TORRES-HERNANDEZ for the degree of DOCTOR OF PHILOSOPHY in ANIMAL

The design-based Empirical Orthogonal Functions model : an alternative for the analysis of spatio-temporal data

Creator:: Munoz-Hernandez, Breda
Abstract:: Random processes are monitored over space and time by a network of stations distributed across a spatial region. Researchers have developed several analysis techniques to model the random process. Some of them require assumptions on the spatio-temporal variability of the process. An alternative method to analyze spatio-temporal data that does...
Resource Type:: Dissertation
Full Text:: -Hernandez for the degree of Doctor of Philosophy in Statistics presented on August 25, 1999. Title: The

Annual reversible plasticity of feeding structures: cyclical changes of jaw allometry in a sea urchin

Creator:: Ebert, Thomas A., Hernández, José Carlos, and Clemente, Sabrina
Abstract:: A wide variety of organisms show morphologically plastic responses to environmental stressors but in general these changes are not reversible. Though less common, reversible morphological structures are shown by a range of species in response to changes in predators, competitors, or food. Theoretical analysis indicates that reversible plasticity increases fitness...
Resource Type:: Article
Full Text:: plasticity of feeding structures: cyclical changes of jaw allometry in a sea urchin Ebert, T. A., Hernández

Effects of sire breed on growth, feed efficiency, and carcass traits of cross-bred lambs slaughtered at three weights

Creator:: Collins, Debora Ann
Abstract:: This study examined the effects of sire breed and weight on the performance of 117 crossbred wether lambs born at the Oregon State University Agricultural Experiment Station, Corvallis. Lambs were produced by mating Clun Forest,Polypay, Dorset, Border Leicester, and Suffolk sires to Columbia-type ewes. After weaning at approximately 90 days...
Resource Type:: Masters Thesis
Full Text:: three weights Abstract approved: Redacted for Privacy Dr. David L. Thomas This study examined the

Time-based nitrogen availability and risk of Taeniatherum caput-medusae (L.) Nevski invasion in central Oregon

Creator:: Stubbs, Michelle M.
Abstract:: During the last century, fire suppression, grazing, and climate change have caused sagebrush grasslands to be altered in both function and form; juniper and sagebrush dominate the landscape at the expense of herbaceous plants. Management efforts to reduce juniper and sagebrush overstory in order to enhance herbaceous components of the...
Resource Type:: Masters Thesis
Full Text:: : /1 /} Signature redacted for privacy. David A Pyke-(/~--~---- During the last century, fire

Nitrogen nutrition of seedling alfalfa (Medicago sativa L.)

Creator:: Eardly, Bertrand D.
Abstract:: Nitrogen fertilization of seedling legumes is a controversial practice intended to provide N to the plant during periods when seed N, soil N, and N₂ fixation may not meet plant requirements; eg. prenodulation, postharvest, or in the event of an inoculation failure. Field experiments were conducted in 3 consecutive years...
Resource Type:: Dissertation
Full Text:: .) Abstract approved: Redacted for privacy Dr. David B. Hannaway Nitrogen fertilization of seedling legumes

The effects of harvesting Pacific hake (Merluccius productus) on the offshore community : the results of a multi-species model

Creator:: Gartz, Russell G.
Abstract:: The effects of harvesting Pacific hake (Merluccius productus) were examined with a multi-species numerical model composed of seven logistic growth equations coupled by a food web. The food web was composed of: California sea lions (Zalophus californianus), hake, sablefish (Anaplopoma fimbria), spiny dogfish (Squalus acanthias), a generic rockfish species (Sebastes...
Resource Type:: Masters Thesis
Full Text:: . stract approved: David B. Sampson The effects of harvesting Pacific hake (Merluccius product us) were

Metabolic pathway of the nitrosoureas catalyzed by cytochrome P-450 and NADPH cytochrome P-450 reductase

Creator:: Potter, David Willard
Abstract:: Three highly purified forms of cytochrome P-450 (P-450a, P-450b, P-450c) from Aroclor 1254-induced rat hepatic microsomes catalyzed the monooxygenation of 1-(2- chloroethyl)-3-(trans-4-methylcyclohexyl)-1-nitrosourea (MeCCNU) and 1-(2-chloroethyl)-3-(cyclohexyl)-1-nitrosourea (CCNU) in the presence of purified NADPH cytochrome P-450 reductase, NADPH and oxygen. Cytochrome P -450- dependent monooxygenation of CCNU gave six alicyclic hydroxylation products...
Resource Type:: Dissertation
Full Text:: Cytochrome P-450 and Nadph Cytochrome P-450 Reductase AN ABSTRACT OF THE THESIS OF DAVID WILLARD POTTER

The effect of 2,4-D on the respiration rate and ethylene production of Bartlett pears and Red Delicious apples

Creator:: Fechtig, Allen David
Abstract:: After nearly 20 years of commercial use in orchards without apparent tree injury in Oregon and Washington, 2,4-D [(2,4-dichlorophenoxy) acetic acid] was reported in 1970 to cause injury to apple and pear trees in Washington. In the early 1970's, there was widespread concern among growers, researchers, and processors in the...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF ALLEN DAVID fECHTIG for the

A causal study of attitudes toward intercollegiate athletics of Oregon State University undergraduate students in three academic majors

Creator:: Ruhl, Glenn David
Abstract:: The purpose of this study was to determine and explain attitudes toward intercollegiate athletics of undergraduate students in three academic majors attending Oregon State University. The attitudes of a proportionate random sample consisting of 215 students were measured according to their responses to thirty-two Likert scale items containing six sub-scale...
Resource Type:: Dissertation
Full Text:: THESIS OF Glenn David Ruhl for the degree of Doctor of Philosophy in College Student Services

ScholarsArchive@OSU

Milk production and progeny growth in crossbred sheep

The design-based Empirical Orthogonal Functions model : an alternative for the analysis of spatio-temporal data

Annual reversible plasticity of feeding structures: cyclical changes of jaw allometry in a sea urchin

Effects of sire breed on growth, feed efficiency, and carcass traits of cross-bred lambs slaughtered at three weights

Time-based nitrogen availability and risk of Taeniatherum caput-medusae (L.) Nevski invasion in central Oregon

Nitrogen nutrition of seedling alfalfa (Medicago sativa L.)

The effects of harvesting Pacific hake (Merluccius productus) on the offshore community : the results of a multi-species model

Metabolic pathway of the nitrosoureas catalyzed by cytochrome P-450 and NADPH cytochrome P-450 reductase

The effect of 2,4-D on the respiration rate and ethylene production of Bartlett pears and Red Delicious apples

A causal study of attitudes toward intercollegiate athletics of Oregon State University undergraduate students in three academic majors

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