Rush Hour Logic was introduced in [2] as a model of computation inspired by the \Rush Hour" toy puzzle, in which cars can move horizontally or vertically within a parking lot. The authors show how the model supports polynomial space computation, using certain car con gurations as building blocks to construct boolean circuits for a cpu and memory. They consider the use of cars of length 3 crucia...

Purified L1210 plasma membranes treated with Vibrio cholerae neuraminidase (VCN) were used for active immunotherapy of L1210 tumors in DBA/2J mice. Immunotherapy with VCN-treated membranes was effective only when combined with 1-(2-chloroethyl)-3-(4-methylcyclohexyl)-1-nitrosourea (MeCCNU). Successful therapy was a function of the dose of MeCCNU, the dose of VCN-treated membranes, and the time ...