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The vertical distribution of neurons of different birth dates in the mouse isocortex was measured and compared with the theoretical distributions of neurons accumulation in chronologically ordered columns. The agreement between observed and predicted results was close, so that, in spite of considerable scatter and overlap in the observed distribution of(More)
In this paper, we present a system for the symbolic solution of problems in engineering mechanics. Of critical importance is a sub-system for maintaining and manipulating quantities containing unevaluated intermediate variables. Without this subsystem, intermediate expression expansion makes symbolic mechanics impractical for all but trivial problems. With(More)
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