Carissa Ganapathy

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The organophosphate (OP) insecticides diazinon and chlorpyrifos have been frequently detected in the San Joaquin River, California, USA. Irrigation tail waters are a significant source of OP pesticides in the watershed. This study tested several management practices for reducing offsite movement of chlorpyrifos to surface water from flood irrigated alfalfa.(More)
The amino acid sequence of xylanase isolated from the culture medium of Thermoascus aurantiacus was determined. It had 269 amino acid residues with an alpha-N-acetyl group at the amino terminus. The structure of blocked N-terminal 11 amino acid tryptic peptide except for acetylalanine was determined by sequence analysis of peptides derived from partial acid(More)
Several studies have indicated that certain pesticides are present in California rivers at levels which could be harmful to aquatic life. Generally, these studies have been conducted during certain seasons, but not year-round. Since yearround pesticide concentration data was limited for many California rivers having significant amounts of agricultural(More)
Multilayered (laminated) composites exhibit tunable mechanical behavior compared to bulk materials due to the presence of more interfaces and therefore magnesium based composites are gaining wide popularity as biodegradable materials targeted for temporary implant applications. The objective of the present work is to fabricate magnesium based lamellar metal(More)
This memorandum provides results of water sampling conducted on the San Joaquin River (SJR) by the Department of Pesticide Regulation (DPR) for the Dormant Spray Water Quality Project. Information presented is from December 1, 1997 to March 6, 1998 and includes results from chemical analyses conducted by the California Department of Food and Agriculture(More)
The Department of Pesticide Regulation Environmental Monitoring Branch has successfully used ELISA for analyses of pesticides in soil and water samples for over a decade using both in-house assays (Goh 1992a, 1992b, 1993, 1996) and commercially available kits (Goh 1990, 1991). We recently evaluated a commercial diazinon kit for its sensitivity, selectivity,(More)
Since the initial report by Silver et al (1953), more than 50 examples of the Russell-Silver syndrome have been reported. Unilateral congenital asymmetry of the extremities has been considered one of the major features of this disorder (Silver, 1964). We recently observed a child with otherwise typical features of the Russell-Silver syndrome who had(More)
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