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It has been shown that the monomethylated cap structure plays important roles in nuclear events. The cap structure has been implicated in the enhancement of pre-mRNA splicing. More recently, this structure has also been suggested to facilitate RNA transport from the nucleus to the cytoplasm. We have previously identified and purified an 80kD Nuclear Cap… (More)
SUMMARY In this paper, we propose the introduction of a frequency domain variable perturbation control and a leaky algorithm to the frequency domain time difference simultaneous perturbation (FDTDSP) method in order to improve the cancellation performance and the stability of the active noise control (ANC) system using the perturbation method. Since the ANC… (More)
In this paper, we propose an updating algorithm considering the frequency characteristic of the secondary path in order to improve the cancellation performance of active noise control (ANC) system using the perturbation method. Since the ANC system using the perturbation method does not need the secondary path model, it has an advantage that can track the… (More)
A new antitumor antibiotic gilvusmycin was isolated from the culture broth of Streptomyces sp. QM16. The structure of gilvusmycin was related to CC-1065 and determined by NMR spectral analysis. Gilvusmycin exhibited antitumor activity against murine leukemia P388 in vivo.