Index Catalog // ScholarsArchive@OSU

Twospotted spider mite, Tetranychus urticae Kock, in Oregon peppermint, Mentha piperita L. : sampling, population dynamics and economic injury

Creator:: Hollingsworth, Craig Stephen
Abstract:: A pest management program for Tetranychus urticae Koch in Oregon peppermint was developed based on studies of sampling, plant phenology, population dynamics and damage thresholds. A sample size of 45 leaves provided a confidence level of 90% and a confidence interval of 50%. Estimation of the sample mean was based...
Resource Type:: Dissertation
Full Text:: THESIS OF Craig Stephen Hollingsworth for the degree of Doctor of Philosophy in Entomology presented on

Modeling of forced planetary waves in the Mars atmosphere

Creator:: Hollingsworth, Jeffery L.
Abstract:: Mariner 9 and Viking spacecraft observations during the 1970's have provided evidence for planetary-scale wave-like disturbances in the Mars atmosphere. It has been suggested that possible sources of the wave activity are dynamical instabilities (e.g., barotropic and/or baroclinic instabilities). An other candidate source is forced, quasi-stationary planetary waves. In connection...
Resource Type:: Dissertation
Full Text:: spacecraft observations during the 1970's have provided evidence for planetary-scale wave-like disturbances

Distribution of Clostridium botulinum type E in fish, shellfish and the marine environment of the Pacific Northwest, and protein patterns of the toxigenic and non-toxigenic stains

Creator:: Craig, James Morrison
Abstract:: Interest in the distribution of Clostridium botulinum type E was heightened by the sudden outbreak of human botulism from smoked whitefish chubs and canned tuna fish in 1963. The question arose as to how widely the organism is distributed among fish and shellfish in the Northwest and what potential hazard...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF James Morrison Craig for the (Name

Relative lifetime measurements of ¹⁹²Hg and ¹⁹³Hg superdeformed bands

Creator:: Busse, Brian Craig
Abstract:: Relative lifetimes, and the closely related quadrupole moments (Q[subscript]i values), of the six superdeformed (SD) bands in ¹⁹³Hg and the yrast SD band in ¹⁹²Hg were determined by a Doppler-shift attenuation method measurement. The experiment was performed using the Gammasphere array and Lawrence Berkeley National Laboratory's 88-inch Cyclotron. The Q[subscript]i...
Resource Type:: Dissertation
Full Text:: superdeformed bands AN ABSTRACT OF THE THESIS OF Brian Craig Busse for the degree of Doctor of Philosophy in

Anaerobic biodegradation of the cyclic nitramines, RDX and HMX, by ovine ruminal microbes

Creator:: Eaton, Hillary L.
Abstract:: Cyclic nitramines released into all environmental compartments through anthropogenic activities are toxic and possibly carcinogenic and mutagenic. Soils on military ranges, located throughout the world in various climatic regions and close to human activities, are especially susceptible to cyclic nitramine contamination. The properties of soils on military ranges will directly...
Resource Type:: Dissertation
Full Text:: . Craig Cyclic nitramines released into all environmental compartments through anthropogenic

Ruminal Biodegradation of Heterocyclic Toxic Compounds

Creator:: Tanaree, Dan D.
Abstract:: Cyclic nitramines are a class of compounds that include most of the commonly used explosives today. These are among the most common toxicants released into the environment as a result of human activity, generated on military ranges, battlefields, and production sites. Of these, hexahydro-1,3,5-trinitro-1,3,5- triazine (RDX) is of particular interest,...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ A. Morrie Craig Cyclic nitramines are a class of compounds that include most of the

Metabolism of pyrrolizidine alkaloids by ruminal microbes

Creator:: Hovermale, Jeannette Talbot
Abstract:: The plant Senecio jacobaea (tansy ragwort) produces several macrocyclic pyrrolizidine alkaloids which cause irreversible liver cirrhosis. All of the pyrrolizidine alkaloids in Senecio jacobaea are macrocyclic diesters of the necine base retronecine, with the two most predominant being seneciphylline and jacobine. Unlike horses and cattle, sheep and goats are generally...
Resource Type:: Dissertation
Full Text:: . Abstract approvecRedacted for Privacy A. Morrie Craig The plant Senecio jacobaea (tansy ragwort) produces

Biotransformation of 2,4,6-trinitrotoluene by ruminal organisms

Creator:: De Lorme, Marthah J. M.
Abstract:: 2,4,6-Trinitrotoluene (TNT) has been the common munitions used in the world and is an environmental contaminant that is amendable to reductive transformation reactions. The rumen is an extremely reductive environment containing diverse microbial populations. There are 21 pure culture ruminal bacteria species in culture collection, these were tested for the...
Resource Type:: Dissertation
Full Text:: Abstract approved: ________________________________________________ A. Morrie Craig 2,4,6

Metabolism of toxic plant alkaloids in livestock : comparative studies on the hepatic metabolism of pyrrolizidine alkaloids in sheep and cattle and of ergot alkaloids in an endophyte-resistant mouse model

Creator:: Duringer, Jennifer Marie
Abstract:: The pyrrolizidine alkaloids (PAs) and ergot alkaloids are known natural toxicants found in livestock forage. These alkaloids contribute to large economic losses in livestock throughout the world. An understanding of the mechanisms of toxicity and development of better diagnostic tools for better management practices was investigated. Variability exists in the...
Resource Type:: Dissertation
Full Text:: want to thank my major professor, Dr. Craig, for supporting me and for providing me with the

Lead toxicity at various dosages in Naeemi lambs in Kuwait

Creator:: AL Sabbagh, Tariq Ashour
Abstract:: Environmental contamination along roadways with lead from processed petroleum and automotive residues has been reported. Toxicity to the herbivores grazing these areas has not been well studied. Comparison of lead concentrations adjacent to roads in Kuwait and in Oregon, USA was studied. Soil samples were taken from three sites at...
Resource Type:: Dissertation
Full Text:: Naeemi Lambs in Kuwait Abstract approved : A.Morrie Craig Environmental contamination along roadways

ScholarsArchive@OSU

Twospotted spider mite, Tetranychus urticae Kock, in Oregon peppermint, Mentha piperita L. : sampling, population dynamics and economic injury

Modeling of forced planetary waves in the Mars atmosphere

Distribution of Clostridium botulinum type E in fish, shellfish and the marine environment of the Pacific Northwest, and protein patterns of the toxigenic and non-toxigenic stains

Relative lifetime measurements of ¹⁹²Hg and ¹⁹³Hg superdeformed bands

Anaerobic biodegradation of the cyclic nitramines, RDX and HMX, by ovine ruminal microbes

Ruminal Biodegradation of Heterocyclic Toxic Compounds

Metabolism of pyrrolizidine alkaloids by ruminal microbes

Biotransformation of 2,4,6-trinitrotoluene by ruminal organisms

Metabolism of toxic plant alkaloids in livestock : comparative studies on the hepatic metabolism of pyrrolizidine alkaloids in sheep and cattle and of ergot alkaloids in an endophyte-resistant mouse model

Lead toxicity at various dosages in Naeemi lambs in Kuwait

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