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51. A network approach to mixing delegates at meetings

Author

Vaggi, Federico, primary, Schiavinotto, Tommaso, additional, Lawson, Jonathan LD, additional, Chessel, Anatole, additional, Dodgson, James, additional, Geymonat, Marco, additional, Sato, Masamitsu, additional, Carazo Salas, Rafael Edgardo, additional, and Csikász-Nagy, Attila, additional

Published
2014
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53. Dynamics of SIN Asymmetry Establishment

Author

Bajpai, Archana, primary, Feoktistova, Anna, additional, Chen, Jun-Song, additional, McCollum, Dannel, additional, Sato, Masamitsu, additional, Carazo-Salas, Rafael E., additional, Gould, Kathleen L., additional, and Csikász-Nagy, Attila, additional

Published
2013
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78. New drug-resistant cassettes for gene disruption and epitope tagging in Schizosaccharomyces pombe.

Author

Sato, Masamitsu, Dhut, Susheela, and Toda, Takashi

Abstract

Copyright of Yeast is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2005
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79. Designing linear phase FIR digital filters with flat passband and equiripple stopband characteristics.

Author

Aikawa, Naoyuki and Sato, Masamitsu

Subjects
*DIGITAL filters (Mathematics), *DIGITAL signal processing, *DIGITAL electronics, *ALGORITHMS
Abstract

It is known that linear phase FIR digital filters fall into four types considering the symmetry of impulse response. For example, filters of type 2 can be used at the time of partitioning and reconstruction of signals in multirate signal processing, and other types have similar special applications. Moreover, the linear phase FIR digital filters with flat passband and equiripple stopband characteristics are very important filters in practice because they have better time domain characteristics and less ringing than Chebyshev filters with equiripple stopband and passband characteristics. However, conventional design methods are restricted to type 1. In this paper, we therefore propose a method of design of linear phase FIR digital filters with flat passband and equiripple stopband characteristics for all four types. The proposed function is composed of two functions, one with a flat characteristic in the passband and the second with equiripple characteristics in the stopband. The latter function is obtained by using the well-known Remez algorithm only for the stopband. © 2002 Wiley Periodicals, Inc. Electron Comm Jpn Pt 3, 86(4): 89–95, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecjc.1148 [ABSTRACT FROM AUTHOR]

Published
2003
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80. Design of Bandpass Prefilters Based on Interpolation Technique.

Author

Shirai, Takaharu, Aikawa, Naoyuki, and Sato, Masamitsu

Subjects
BANDPASS filters, COMPUTER systems, INTERPOLATION, TECHNOLOGICAL innovations, MATHEMATICAL models
Abstract

This paper proposes a design method for a bandpass prefilter with a recursive structure and a few multipliers. Since the system function for this prefilter is in a closed form, the design is simple. In this design, interpolations are used repeatedly. As a model filter, RRSs of low-pass or high-pass types with a recursive structure are used. Since the method is based on the interpolation technique, multipliers are required for removal of unwanted passbands, although the number of multipliers is small. In the realized prefilter, the center frequency can be chosen arbitrarily as long as it is at the point equally dividing a unit circle. By means of examples, the effectiveness of the present prefilter is confirmed for reducing the number of multipliers and adders. [ABSTRACT FROM AUTHOR]

Published
1990

86. Reconstruction of Microtubules: Entry into Interphase

Author

Sato, Masamitsu and Toda, Takashi

Subjects
*MICROTUBULES, *MITOSIS, *CELL division, *CELL cycle, *MORPHOLOGY, *CYTOKINESIS
Abstract

Microtubules display dramatic morphological alterations from mitotic spindles to fibrous interphase structures upon exit from mitosis. In this issue of Developmental Cell, Zimmerman et al. shed a novel light on the molecular mechanism of microtubule structure reorganization during cytokinesis. [Copyright &y& Elsevier]

Published
2004
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87. Reconstruction of Microtubules Entry into Interphase

Author

Sato, Masamitsu and Toda, Takashi

Abstract

Microtubules display dramatic morphological alterations from mitotic spindles to fibrous interphase structures upon exit from mitosis. In this issue of Developmental Cell, Zimmerman et al. shed a novel light on the molecular mechanism of microtubule structure reorganization during cytokinesis.

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88. Tracheal motile cilia in mice require CAMSAP3 for formation of central microtubule pair and coordinated beating

Author

Saito, Hiroko, Matsukawa-Usami, Fumiko, Fujimori, Toshihiko, Kimura, Toshiya, Ide, Takahiro, Yamamoto, Takaki, Shibata, Tatsuo, Onoue, Kenta, Okayama, Satoko, Yonemura, Shigenobu, Misaki, Kazuyo, Soba, Yurina, Kakui, Yasutaka, Sato, Masamitsu, Toya, Mika, and Takeichi, Masatoshi

Abstract

Motile cilia of multiciliated epithelial cells undergo synchronized beating to produce fluid flow along the luminal surface of various organs. Each motile cilium consists of an axoneme and a basal body, which are linked by a ‘transition zone’. The axoneme exhibits a characteristic 9+2 microtubule arrangement important for ciliary motion, but how this microtubule system is generated is not yet fully understood. Here we show that CAMSAP3, a protein that can stabilize the minus end of a microtubule, concentrates at multiple sites of the cilium–basal body complex, including the upper region of the transition zone or the axonemal basal plate where the central pair of microtubules (CP) initiates. CAMSAP3 dysfunction resulted in loss of the CP and partial distortion of the basal plate, as well as the failure of multicilia to undergo synchronized beating. These findings suggest that CAMSAP3 plays pivotal roles in the formation or stabilization of the CP by localizing at the basal region of the axoneme, and thereby supports the coordinated motion of multicilia in airway epithelial cells.Audio S1Audio S1Respiratory sound of a P50 Camsap3mutant mouse.Movie S1Movie S1Beating multicilia in a wild-type airway epithelial cell. The time-lapse images were acquired at 300 fps and displayed at 31 fps.Movie S2Movie S2Beating multicilia in a Camsap3-mutated airway epithelial cell. The time-lapse images were acquired at 300 fps and displayed at 31 fps.Movie S3Movie S3Beating multicilia in a wild-type airway epithelial cell, which is overlaid with a flow vector field calculated by PIV analysis. The flow vector field was also shown separately at the right. The scale arrow and scale bar are 20 μm/s and 1 m, respectively. Part of Video S1 was used for this analysis.Movie S4Movie S4Beating multicilia in a Camsap3-mutated airway epithelial cell, which is overlaid with a flow vector field calculated by PIV analysis. The flow vector field was also shown separately at the right. The scale arrow and scale bar are 20 μm/s and 1 μm, respectively. Part of Video S2 was used for this analysis.Movie S5Movie S5Animation of sequential optical sections, each of which is 0.2 m thick, of a wild-type multi-ciliated epithelial cell, in which GFP-Centrin (green) and -tubulin (magenta) are visualized by fluorescence signals. The animation view begins around the level where the array of GFP-Centrin is detectable, then shifts toward a more basal view of the cell at a speed of 2 fps. See also Figure 6A.Movie S6Movie S6Animation of sequential optical sections, each of which is 0.2 m thick, of a Camsap3-mutated multi-ciliated epithelial cell, in which GFP-Centrin (green) and -tubulin (magenta) are visualized by fluorescence signals. The animation view begins at the level where the array of GFP-Centrin is detectable, then shifts toward a more basal view of the cell at a speed of 2 fps. See also Figure 6B.

Published
2021
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