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...artin_leese/Ambisonic/faq_latest.html#SECTION12 The conversion of low-frequency amplitude differences at the speakers to phase between the ears is nicely explained at: http://uod-true-multi-channel-mixing.wikispaces.com/Blumlein+Stereo As the article points out, Blumlein described all this in his 1930s patent. The reason why movie surround systems only have one "sub bass channel" is also complicated. The key is to note that the correct name for the .1 channel is the Low Frequency Effects (LFE) channel. It is there only for special effects such as explosions and dinosaur footsteps....

Dear all, There have been a variety of discussions on the R list regarding the use of R in clinical trials. The following post from the STATA list provides an interesting opinion regarding why SAS remains so popular in this arena: http://www.stata.com/statalist/archive/2008-01/msg00098.html Regards, -Cody Hamilton

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