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Creator:: Smith, Harry Glen
Abstract:: Ruelene was orally administered to three female sheep at a dosage rate of 121.5 mg /kg. The cholinesterase (ChE) activity levels of blood plasma, red blood cells (RBC), and mosquitoes (Aedes aegypti) which had fed on the sheep were tested at various times before and after dosage. Maximum depression of...
Resource Type:: Masters Thesis
Full Text:: systemic insecticide. Midland, Michigan. 17 p. (Agricultural Chemical Development Information Bulletin 11

Creator:: Walsh, Gerald Michael
Resource Type:: Dissertation
Full Text:: rate of accumulation of either insecticide into the brain does not correlate with the onset or

Creator:: Buchanan, David Vardyn
Resource Type:: Masters Thesis
Full Text:: ) Title: EFFECTS OF THE INSECTICIDE SEVIN ON THE DUNGENESS CRAB, CANCER MAGISTER DANA Abstract approved

Creator:: Schauber, Eric M.
Abstract:: The Quotient Method (QM), a laboratory-based risk assessment methodology used by the Environmental Protection Agency to evaluate pesticides for registration and use, has not been thoroughly field-tested and its performance has not always been reliable. My objective was to determine if variation in vegetation structure or diet of exposed animals...
Resource Type:: Masters Thesis
Full Text:: from May through August 1993. On 14 July, an organophosphorus insecticide, azinphos-methyl, was

Creator:: Aponso, G. Lalith M.
Abstract:: This study was designed to assess chiorpyrifos exposure of a group of farmers by determining internal dose associated with a given application of this insecticide. This involved the monitoring of urinary levels of 3,5,6 trichloro-2-pyridinol (TCP), the major metabolite of chlorpyrifos. Incidental exposure was evaluated by determining the levels of...
Resource Type:: Dissertation
Full Text:: degree of Doctor of Philosophy in Toxicology presented on July 30. 2001. Title: Exposure and Health Risk

Creator:: Grove, Robert Allan
Abstract:: A declining population of ring-necked pheasants (Phasianus colchicus) was studied at Tule Lake National Wildlife Refuge (TLNWR) from the summer of 1990 through the spring of 1993. Pheasant densities/50 ha at TLNWR in 1989, 1991, and 1992 were considerably lower (16.86, 8.49, and 6.81) than the >62 density seen in...
Resource Type:: Masters Thesis
Full Text:: organophosphorus insecticide use in relation to ring-necked pheasant numbers at Klamath Basin Refuges, California

ScholarsArchive@OSU