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...
Reported here is an investigation to determine if azinphos-methyl (AZM), an
organophosphate insecticide, adducts to hemoglobin, and if so, whether the
hemoglobin adduct could be used as a quantitative marker of occupational AZM
exposure. We hypothesized that AZM, or a metabolite of AZM, binds to hemoglobin
in erythrocytes forming an...
Eight scale characters of known hatchery and wild coho salmon
(Oncorhynchus kisutch) were compared, and a linear discriminant
function was used to determine if hatchery and wild adult coho
salmon could be correctly identified by their scales. Eighty-two
percent of the hatchery and 89% of the wild fish were correctly...
A herd of California bighorn sheep (Ovis canadensis californiana),
re-introduced to the area of Hell Creek on the Sheldon National
Wildlife Refuge in northwestern Nevada, was studied from 15 June 1978
to 20 August 1980.
Major vegetation and physiographic types were delineated and
described. Habitat preferences were determined from field...
Recently, with the realization of the World Wide Web, the tremendous
need for high-speed data communications has grown. Several access techniques
have been proposed which utilize the existing copper twisted pair cabling. Of
these, the xDSL family, particularly ADSL and VDSL, have shown great promise
in providing broadband or near-broadband...
This report is a critique of a study by the U.S. Environmental Protection Agency that found a statistically significant correlation between the application of the herbicide 2,4,5-T (dioxin) and miscarriages in the Alsea watershed. "If there is a relationship between herbicide use and miscarriages in the 'Alsea Basin' and its...