W. Ferguson

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With the advent of large scale integration (LSI and VLSI), logic circuit densities per chip have grown to hundreds and thousands. The arrangement of interconnected logic circuits of different sizes and shapes poses a difficult combinatorial placement problem. In this paper, an overview of techniques is presented for placing different size rectangular(More)
Target cell lysis by most murine cytotoxic T lymphocytes appears to be mediated by a complement (C9)-like protein called perforin, contained in high-density cytoplasmic granules. These granules also contain high levels of serine esterase activity, which may also play a role in cytolysis. Analysis of 17 cloned human cytotoxic T lymphocytes revealed the(More)
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