Decay‐accelerating factor (DAF, CD55) is a complement regulatory glycoprotein that expresses the Cromer‐system blood group antigens. Two, very rare, inherited DAF‐deficiency phenotypes, Inab and Dr(a–), were identified in Japanese propositi. Red cells of the Inab phenotype propositus had no Cromer‐system antigens and did not bind monoclonal anti‐DAF. The Inab propositus was homozygous for a DAF non‐sense mutation, converting the Trp53 codon to a stop codon; her parents were heterozygous for this mutation. This is the same mutation as that previously found in the original Inab phenotype propositus. Haemagglutination‐inhibition titrations of the serum of the Inab propositus with soluble‐recombinant DAF demonstrated that anti‐IFC represents a mixture of antibodies to all four DAF short consensus repeat domains. The Dr(a–) individual had very low levels of Cromer‐system antigens and DAF on her red cells. Loss of a TaqI restriction site from DAF exon 5 suggested that she has a previously detected mutation, encoding a Ser165Leu substitution. Red cells of the two propositi did not show abnormal levels of lysis in an acid lysis test, but after blocking of CD59 with monoclonal antibody, Inab phenotype red cells showed more lysis than Dr(a–) red cells, and Dr(a–) cells showed substantially more lysis than control cells.

This paper reports an automatic speech summarization method and experimental results using English broadcast news speech. In our proposed method, a set of words maximizing a summarization score indicating an appropriateness of summarization is extracted from automatically transcribed speech. This extraction is performed using a Dynamic Programming (DP) technique according to a target compression ratio. We have previously tested the performance of our method using Japanese broadcast news speech. Since our method is based on a statistical approach, it could be applied to any language. In this paper, English broadcast news speech transcribed using a speech recognizer is automatically summarized. In order to apply our method to English, the model of estimating word concatenation probabilities based on a dependency structure in the original speech given by a Stochastic Dependency Context Free Grammar (SDCFG) is modified. A summarization method for multiple utterances using two-level DP technique is also proposed.

A MOSFET with Si-implanted gate-SiO, insulator (MEmory-Insulator Transistor MEIT) is fabricated and investigated, especially with emphasis on its feasibility. for nonvolatile memory applications for the first time. A highdose Si' implantation to thermal SiO, introduces excess-Si cites acting as traps responsible for a memory effect. 14s a result, a large Vr window of -10 V is achieved by applying small electric fields of 3-5 MV/cm to the MEIT insulator fof write/erase programming. By taking advantage of the memory effect, it is found that MEIT achieves sufficient programming characteristics as a Flash EPROM as well as simplicity of the single poly-Si-gate process. Most of all, the V, window is scarcely degraded, at least, up to lo7 write/ erase cycles. Although further investigation is needed, MEIT is promising for nonvolatile memory applications. 0. 103.0 $ F 103.2 103.4 e z ) r W CD c Si + implantation + + $ . I Drain ) \Source/ Fig.1 Process sequence of a METTFET. The typical Si+ imlplant dose is 1~1 0 '~ cm".

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