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Week-long time-averaged exposures to naturally occurring 220Rn and 222Rn progeny have been measured at several locations in Colorado by monitoring the alpha activity collected continuously on a fixed-membrane filter. The alpha-energy spectrum associated with the activity collected on the filter was recorded every 15 min using a microcomputer-controlled(More)
Standard texturing of a geometric surface works by mapping a 2D image into the parametric space of the surface. This technique works great whenever the texture image is created (painted, etc) for a specific surface with predetermined contours. Serious problems arise when the same texture is applied to the same surface but after some deformation has been(More)
The genetic relationship between sympatric, morphologically divergent populations of anadromous and lake-resident three-spined stickleback Gasterosteus aculeatus in the Jim Creek drainage of Cook Inlet, Alaska, was examined using microsatellite loci and mitochondrial d-loop sequence data. Resident samples differed substantially from sympatric anadromous(More)
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