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51. Unbinding and preunbinding in surfactant solutions.

Author

Komura, S., Shimokawa, N., and Kato, T.

Subjects
*SURFACE active agents, *SURFACE tension, *MECHANICS (Physics), *DEGREES of freedom, *ANALYSIS of variance, *PHYSICS
Abstract

We propose models for the first-order unbinding transition of lyotropic lamellae in surfactant solutions. The coupling between the surfactant volume fraction and the elastic degree of freedom is considered so that the net attractive interaction between the surfactant molecules is enhanced. The elastic degree of freedom can be either (i) a membrane elastic degree of freedom or (ii) a bulk elastic degree of freedom. The phase behaviors of these two models are analyzed. For both cases, the unbinding transition becomes first order when the coupling is strong enough. We determine the associated preunbinding line which separates two lamellar phases having different repeat distances. [ABSTRACT FROM AUTHOR]

Published
2006
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54. Transportation technique for magnetically levitated thin iron plates

Author

Ebihara, D., Kawaguchi, H., Muraguchi, Y., Watada, M., Nakagawa, T., Komura, S., and Ohhara, T.

Subjects
Magnetic suspension -- Research, Electromagnets -- Usage, Business, Electronics, Electronics and electrical industries
Abstract

In motorcar factories, there is a growing need for a high surface quality of iron plate. Conventional contact suspensions such as the roller or arm types, have many surface problems in the processing of thin iron plates. To solve these problems, a magnetically levitated suspension is proposed and demonstrated with a simplified model apparatus which consists of an iron plate levitated by two electromagnets.

Published
1993

55. New readout and data-acquisition system for reducing dead time in the Gamma Ray Compton Telescope

Author

Yoshikawa, K., primary, Tanimori, T., additional, Takada, A., additional, Mizumoto, T., additional, Mizumura, Y., additional, Komura, S., additional, Kishimoto, T., additional, Takemura, T., additional, Nakamasu, Y., additional, Taniguchi, T., additional, Nakamura, Y., additional, Kubo, H., additional, Sawano, T., additional, Nakamura, K., additional, Sonoda, S., additional, Miuchi, K., additional, Kurosawa, S., additional, and Parker, J. D., additional

Published
2017
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56. Imaging Polarimeter for a Sub-MeV Gamma-Ray All-sky Survey Using an Electron-tracking Compton Camera

Author

Komura, S., primary, Takada, A., additional, Mizumura, Y., additional, Miyamoto, S., additional, Takemura, T., additional, Kishimoto, T., additional, Kubo, H., additional, Kurosawa, S., additional, Matsuoka, Y., additional, Miuchi, K., additional, Mizumoto, T., additional, Nakamasu, Y., additional, Nakamura, K., additional, Oda, M., additional, Parker, J. D., additional, Sawano, T., additional, Sonoda, S., additional, Tanimori, T., additional, Tomono, D., additional, and Yoshikawa, K., additional

Published
2017
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58. Structural evolution and microscopic interactions in a three-component amphiphilic microemulsion system.

Author

Komura, S., Seto, H., Takeda, T., Nagao, M., Ito, Yuji, and Imai, M.

Subjects
*EMULSIONS, *MOLECULAR evolution
Abstract

Structures and interaction parameters of a three-component amphiphilic microemulsion system consisting of n-decane, water, and an amphiphile AOT (sodium-di-2-ethylhexylsulfosuccinate) have been studied by means of small angle neutron scattering. The scattering curves are fitted with Teubuer and Strey’s formula, from which three structural parameters are extracted; the average periodic distance D between the oil and water, the structural correlation length ξ, and the area aH per amphiphile molecule. The same data are further examined in terms of Gompper and Schick’s formula, from which three interaction parameters are obtained; the strength of segregation J/T among the oil and water, the amphiphilicity L/T of the amphiphile toward the oil and water, and the critical surfactant volume fraction [lowercase_phi_synonym]cs. These interaction parameters have right order of magnitudes and their implications to structural evolution are discussed. © 1996 American Institute of Physics. [ABSTRACT FROM AUTHOR]

Published
1996
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59. Possible dominant-negative mutation of the SHIP gene in acute myeloid leukemia

Author

Yoshida H, Kazunori Ohnishi, Ichiro Hanamura, Kazuyuki Shigeno, Yukihiro Akao, Ryuzo Ueda, Shinsuke Iida, Kazuhisa Miura, Komura S, L Pan, Tomoki Naoe, Ryuzo Ohno, Nobuko Ohishi, and Jian Min Luo

Subjects
Cancer Research, Myeloid, Apoptosis, In Vitro Techniques, Dominant-Negative Mutation, Biology, Transfection, src Homology Domains, Phosphatidylinositol 3-Kinases, Germline mutation, hemic and lymphatic diseases, Chlorocebus aethiops, Tumor Cells, Cultured, medicine, Animals, Humans, Phosphorylation, Etoposide, Genes, Dominant, Acute leukemia, RUNX1T1, Myeloid leukemia, Hematology, medicine.disease, Antineoplastic Agents, Phytogenic, Phosphoric Monoester Hydrolases, Leukemia, medicine.anatomical_structure, Oncology, Drug Resistance, Neoplasm, Leukemia, Myeloid, Case-Control Studies, Phosphatidylinositol-3,4,5-Trisphosphate 5-Phosphatases, Acute Disease, COS Cells, Mutation, Immunology, Cancer research, Interleukin-3, K562 cells
Abstract

The SH2 domain-containing inositol 5'-phosphatase (SHIP) is crucial in hematopoietic development. To evaluate the possible tumor suppressor role of the SHIP gene in myeloid leukemogenesis, we examined primary leukemia cells from 30 acute myeloid leukemia (AML) patients, together with eight myeloid leukemia cell lines. A somatic mutation at codon 684, replacing Val with Glu, was detected in one patient, lying within the signature motif 2, which is the phosphatase active site. The results of an in vitro inositol 5'-phosphatase assay revealed that the mutation reduced catalytic activity of SHIP. Leukemia cells with the mutation showed enhanced Akt phosphorylation following IL-3 stimulation. K562 cells transfected with the mutated SHIP-V684E cDNA showed a growth advantage even at lower serum concentrations and resistance to apoptosis induced by serum deprivation and exposure to etoposide. These results suggest a possible role of the mutated SHIP gene in the development of acute leukemia and chemotherapy resistance through the deregulation of the phosphatidylinositol-3,4,5-triphosphate (PI(3,4,5)P3)/Akt signaling pathway. This is the first report of a mutation in the SHIP gene in any given human cancer, and indicates the need for more attention to be paid to this gene with respect to cancer pathogenesis.

Published
2003
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60. Readout technologies for directional WIMP Dark Matter detection

Author

Battat, J.B.R., primary, Irastorza, I.G., additional, Aleksandrov, A., additional, Asada, T., additional, Baracchini, E., additional, Billard, J., additional, Bosson, G., additional, Bourrion, O., additional, Bouvier, J., additional, Buonaura, A., additional, Burdge, K., additional, Cebrián, S., additional, Colas, P., additional, Consiglio, L., additional, Dafni, T., additional, D’Ambrosio, N., additional, Deaconu, C., additional, De Lellis, G., additional, Descombes, T., additional, Di Crescenzo, A., additional, Di Marco, N., additional, Druitt, G., additional, Eggleston, R., additional, Ferrer-Ribas, E., additional, Fusayasu, T., additional, Galán, J., additional, Galati, G., additional, García, J.A., additional, Garza, J.G., additional, Gentile, V., additional, Garcia-Sciveres, M., additional, Giomataris, Y., additional, Guerrero, N., additional, Guillaudin, O., additional, Guler, A.M., additional, Harton, J., additional, Hashimoto, T., additional, Hedges, M.T., additional, Iguaz, F.J., additional, Ikeda, T., additional, Jaegle, I., additional, Kadyk, J.A., additional, Katsuragawa, T., additional, Komura, S., additional, Kubo, H., additional, Kuge, K., additional, Lamblin, J., additional, Lauria, A., additional, Lee, E.R., additional, Lewis, P., additional, Leyton, M., additional, Loomba, D., additional, Lopez, J.P., additional, Luzón, G., additional, Mayet, F., additional, Mirallas, H., additional, Miuchi, K., additional, Mizumoto, T., additional, Mizumura, Y., additional, Monacelli, P., additional, Monroe, J., additional, Montesi, M.C., additional, Naka, T., additional, Nakamura, K., additional, Nishimura, H., additional, Ochi, A., additional, Papevangelou, T., additional, Parker, J.D., additional, Phan, N.S., additional, Pupilli, F., additional, Richer, J.P., additional, Riffard, Q., additional, Rosa, G., additional, Santos, D., additional, Sawano, T., additional, Sekiya, H., additional, Seong, I.S., additional, Snowden-Ifft, D.P., additional, Spooner, N.J.C., additional, Sugiyama, A., additional, Taishaku, R., additional, Takada, A., additional, Takeda, A., additional, Tanaka, M., additional, Tanimori, T., additional, Thorpe, T.N., additional, Tioukov, V., additional, Tomita, H., additional, Umemoto, A., additional, Vahsen, S.E., additional, Yamaguchi, Y., additional, Yoshimoto, M., additional, and Zayas, E., additional

Published
2016
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61. MeV gamma-ray observation with a well-defined point spread function based on electron tracking

Author

Takada, A., additional, Tanimori, T., additional, Kubo, H., additional, Mizumoto, T., additional, Mizumura, Y., additional, Komura, S., additional, Kishimoto, T., additional, Takemura, T., additional, Yoshikawa, K., additional, Nakamasu, Y., additional, Matsuoka, Y., additional, Oda, M., additional, Miyamoto, S., additional, Sonoda, S., additional, Tomono, D., additional, Miuchi, K., additional, Kurosawa, S., additional, and Sawano, T., additional

Published
2016
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63. 極域での気球による相対論的電子降下ガンマ線観測

Author

Parker, Joseph, Turunen, Esa, Tanimori, T, Kubo, H, Miuchi, K., arker, J.D.P, Komura, S, Iwaki, S., Sawano, T, Nakamura, S, Nakamura, K, Matsuoka, Y., Mizumura, Y, moto, Mizu, Oda, M, Sonoda, S, Takada, A, Tomono, D, Trunen, E, and Yamauchi, M.

Abstract

第4回極域科学シンポジウム個別セッション：[OS] 宙空圏11月14日（木）〜15日（金）国立極地研究所 2階大会議室前ラウンジ

Published
2013

66. 北極域での気球による相対論的電子降下ガンマ線観測

Author

Parker, Joseph, Arvelius, 幸子, Turunen, Esa, Tanimori, T, Kubo, H, Miuchi, K, arker, J.D.P, Komura, S, Iwaki, S., Sawano, T, Nakamura, K., Matsuoka, Y., Mizumoto, T., Sato, Y, Takada, A, Arvelius, S, Trunen, E, and Yamauchi, M.

Abstract

第3回極域科学シンポジウム/第36回極域宙空圏シンポジウム 11月26日（月） 国立極地研究所 2階大会議室

Published
2012

67. AN ELECTRON-TRACKING COMPTON TELESCOPE FOR A SURVEY OF THE DEEP UNIVERSE BY MeV GAMMA-RAYS

Author

Tanimori, T., primary, Kubo, H., additional, Takada, A., additional, Iwaki, S., additional, Komura, S., additional, Kurosawa, S., additional, Matsuoka, Y., additional, Miuchi, K., additional, Miyamoto, S., additional, Mizumoto, T., additional, Mizumura, Y., additional, Nakamura, K., additional, Nakamura, S., additional, Oda, M., additional, Parker, J. D., additional, Sawano, T., additional, Sonoda, S., additional, Takemura, T., additional, Tomono, D., additional, and Ueno, K., additional

Published
2015
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68. A performance study of an electron-tracking Compton camera with a compact system for environmental gamma-ray observation

Author

Mizumoto, T., primary, Tomono, D., additional, Takada, A., additional, Tanimori, T., additional, Komura, S., additional, Kubo, H., additional, Matsuoka, Y., additional, Mizumura, Y., additional, Nakamura, K., additional, Nakamura, S., additional, Oda, M., additional, Parker, J.D., additional, Sawano, T., additional, Bando, N., additional, and Nabetani, A., additional

Published
2015
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69. Direction-sensitive dark matter search with gaseous tracking detector NEWAGE-0.3b'

Author

Nakamura, K., primary, Miuchi, K., additional, Tanimori, T., additional, Kubo, H., additional, Takada, A., additional, Parker, J. D., additional, Mizumoto, T., additional, Mizumura, Y., additional, Nishimura, H., additional, Sekiya, H., additional, Takeda, A., additional, Sawano, T., additional, Matsuoka, Y., additional, Komura, S., additional, Yamaguchi, Y., additional, and Hashimoto, T., additional

Published
2015
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70. Performance of a new Electron-Tracking Compton Camera under intense radiations from a water target irradiated with a proton beam

Author

Matsuoka, Y., primary, Tanimori, T., additional, Kubo, H., additional, Takada, A., additional, Parker, J.D., additional, Mizumoto, T., additional, Mizumura, Y., additional, Iwaki, S., additional, Sawano, T., additional, Komura, S., additional, Kishimoto, T., additional, Oda, M., additional, Takemura, T., additional, Miyamoto, S., additional, Sonoda, S., additional, Tomono, D., additional, Miuchi, K., additional, Kabuki, S., additional, and Kurosawa, S., additional

Published
2015
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78. Effectiveness and performance of a full ray-tracing sub-MeV Compton imager

Author

Mizumura, Y., primary, Takada, A., additional, Iwaki, S., additional, Komura, S., additional, Kubo, H., additional, Matsuoka, Y., additional, Miuchi, K., additional, Mizumoto, T., additional, Nakamura, K., additional, Nakamura, S., additional, Oda, M., additional, Parker, J. D., additional, Sonoda, S., additional, Sawano, T., additional, Tanimori, T., additional, and Tomono, D., additional

Published
2014
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79. MeV gamma-ray Compton camera using a gaseous electron tracker for background-suppressed observation

Author

Takada, A., additional, Tanimori, T., additional, Kubo, H., additional, Parker, J. D., additional, Mizumoto, T., additional, Mizumura, Y., additional, Sawano, T., additional, Nakamura, K., additional, Matsuoka, Y., additional, Komura, S., additional, Nakamura, S., additional, Oda, M., additional, Miuchi, K., additional, and Kurosawa, S., additional

Published
2014
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80. Development of a 30 cm-cube Electron-Tracking Compton Camera for the SMILE-II Experiment

Author

Mizumura, Y, primary, Tanimori, T, additional, Kubo, H, additional, Takada, A, additional, Parker, J D, additional, Mizumoto, T, additional, Sonoda, S, additional, Tomono, D, additional, Sawano, T, additional, Nakamura, K, additional, Matsuoka, Y, additional, Komura, S, additional, Nakamura, S, additional, Oda, M, additional, Miuchi, K, additional, Kabuki, S, additional, Kishimoto, Y, additional, Kurosawa, S, additional, and Iwaki, S, additional

Published
2014
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81. SMILE-II: Balloon-Borne Telescope for Background-Suppressed Soft Gamma-Ray Imaging

Author

Sawano, T., primary, Tanimori, T., additional, Kubo, H., additional, Takada, A., additional, Parker, J. D., additional, Mizumoto, T., additional, Sonoda, S., additional, Mizumura, Y., additional, Tomono, D., additional, Nakamura, K., additional, Matsuoka, Y., additional, Komura, S., additional, Sato, Y., additional, Nakamura, S., additional, Miuchi, K., additional, Kabuki, S., additional, Kishimoto, Y., additional, Kurosawa, S., additional, Iwaki, S., additional, Tanaka, M., additional, Ikeno, M, additional, and Uchida, T., additional

Published
2014
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82. ANALYSIS ON SHEAR FAILURE BEHAVIOUR OF PHC-PILE

Author

CHENG JU, NAKAMURA, H., KOMURA, S., SHIRATORI, Y., CHENG JU, NAKAMURA, H., KOMURA, S., and SHIRATORI, Y.

Abstract

The Thirteenth East Asia-Pacific Conference on Structural Engineering and Construction (EASEC-13), September 11-13, 2013, Sapporo, Japan.

Published
2013

84. Tension-induced morphological transition in mixed lipid bilayers(Poster session 1, New Frontiers in Colloidal Physics : A Bridge between Micro- and Macroscopic Concepts in Soft Matter)

Author

Shimokawa, N., Komura, S., and Andelman, D.

Abstract

近年、Rozovskyらは脂質二重膜における、超構造のダイナミクスについて報告した[1]。彼らは固体基板上に吸着したベシクルのドメインが、時間の経過とともにストライプ構造からヘキサゴナル構造へ転移することを蛍光顕微鏡により観察した。我々はこの構造転移がベシクルの吸着に伴う表面張力の増加に起因すると考え、曲率と組成が結合するモデルを提案する。その結果、図2のように張力の増加と転移の順序が対応していることを示す[2]。また張力の増加による転移を数値シミュレーションにより確認する。, Raft domains in biological cell membranes are associated with membrane signaling pathways and have attracted great deal of interest in recent years. Due to the complexity of biological membranes, a minimal model to investigate rafts (or more precisely, domain formation) consists of three-component lipid bilayers containing saturated and unsaturated lipids as well as cholesterol. These three-component systems have been investigated both at the air-water interface and in artificial vesicles. Complex phase separation and appearance of domains have been observed using fluorescence techniques. Such a phase separation occurs between a liquid-disordered phase rich in unsaturated lipid and a liquid-ordered phase rich in saturated lipid and cholesterol., この論文は国立情報学研究所の電子図書館事業により電子化されました。

Published
2007

85. Non-linear Rheology of Lyotropic Lamellar Phases

Author

Komura, S., Ishii, Y., Lu, C.-Y. D., and Chen, Peilong

Abstract

スメクティック液晶やリオトロピック系のラメラ相のような一次元周期構造を有する系のレオロジーを議論する。我々は転位ループの運動が散逸に寄与すると仮定し、そのダイナミクスを考察することにより、ずり速度と応力の関係を与えるスケーリング則を導いた。さらに非イオン界面活性剤(C_E_5)水溶液におけるラメラ相のレオロジー測定を行い、理論的な予測の検証を行った。その結果、予測に近いスケーリング則を確認するとともに、ずり速度の揺らぎが平均のずり速度に比例するという興味深い現象を発見した。, この論文は国立情報学研究所の電子図書館事業により電子化されました。, 研究会報告

Published
2006

86. Liquid-solid coexistence in mixed lipid membranes

Author

Shimokawa, N. and Komura, S.

Abstract

近年、多成分の脂質二重膜において,L_α(液体相)とL_(固体相)の共存が実験的に観察されている(1)。我々は文献(2)の一成分系のモデルを拡張することによって、膜の曲率と分子の配向が結合したランダウ自由エネルギーを提案する。その際、分子の配向はベクトル場で記述し、L_α-L_転移が一次転移であることを考慮した。それによって、温度と弾性係数に対する相図をFig.1のように求めた。このモデルをさらに拡張することにより、二成分混合系における側方相分離についても考察した。, この論文は国立情報学研究所の電子図書館事業により電子化されました。, 研究会報告

Published
2006

87. NEWAGE

Author

Nakamura, K, primary, Miuchi, K, additional, Tanimori, T, additional, Kubo, H, additional, Mizumoto, T, additional, Parker, J D, additional, Takada, A, additional, Nishimura, H, additional, Sekiya, H, additional, Takeda, A, additional, Sawano, T, additional, Matsuoka, Y, additional, Komura, S, additional, Yamaguchi, Y, additional, and Nakaura, S, additional

Published
2013
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88. Simulation of gas avalanche in a micro pixel chamber using Garfield++

Author

Takada, A, primary, Tanimori, T, additional, Kubo, H, additional, Parker, J D, additional, Mizumoto, T, additional, Mizumura, Y, additional, Iwaki, S, additional, Sawano, T, additional, Nakamura, K, additional, Taniue, K, additional, Higashi, N, additional, Matsuoka, Y, additional, Komura, S, additional, Sato, Y, additional, Namamura, S, additional, Oda, M, additional, Sonoda, S, additional, Tomono, D, additional, Miuchi, K, additional, Kabuki, S, additional, Kishimoto, Y, additional, and Kurosawa, S, additional

Published
2013
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89. SU-C-144-01: Imaging Study of An Electron-Tracking Compton Camera for Nuclear Medicine

Author

Kabuki, S, primary, Sonoda, S, additional, Hatsukawa, Y, additional, Kimura, H, additional, Asai, M, additional, Hashimoto, K, additional, Komura, S, additional, Kubo, H, additional, Matsuoka, Y, additional, Mizumoto, T, additional, Nagai, Y, additional, Nakamura, S, additional, Sato, T, additional, Sawano, T, additional, Takada, A, additional, Toyoshima, A, additional, Tsukada, K, additional, Kunieda, E, additional, and Tanimori, T, additional

Published
2013
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91. Adsorption dynamics in Pickering emulsions(Poster session 1, New Frontiers in Colloidal Physics : A Bridge between Micro- and Macroscopic Concepts in Soft Matter)

Author

Komura, S., Hirose, Y., Komura, S., and Hirose, Y.

Abstract

When we add solid particles such as colloidal particles to two immiscible liquids, emulsions can be stabilized for a long time. Such an emulsion is called as the Pickering emulsion. We consider the adsorption dynamics of spherical particles to liquid/liquid interfaces in Pickering emulsions. Especially, we pay attention how the particle wettability affects the dynamics.

Published
2007

95. ANALYSIS ON SHEAR FAILURE BEHAVIOUR OF PHC-PILE

Author

Ju, C., Hikaru Nakamura, Komura, S., and Shiratori, Y.

Abstract

The Thirteenth East Asia-Pacific Conference on Structural Engineering and Construction (EASEC-13), September 11-13, 2013, Sapporo, Japan.

Published
2013

98. Development of the balloon-borne sub-MeV gamma-ray Compton camera using an electron-tracking gaseous TPC and a scintillation camera

Author

Ueno, K, primary, Mizumoto, T, additional, Hattori, K, additional, Higashi, N, additional, Iwaki, S, additional, Kabuki, S, additional, Kishimoto, Y, additional, Komura, S, additional, Kubo, H, additional, Kurosawa, S, additional, Matsuoka, Y, additional, Miuchi, K, additional, Nakamura, K, additional, Nishimura, H, additional, Parker, J, additional, Sato, Y, additional, Sawano, T, additional, Takada, A, additional, and Tanimori, T, additional

Published
2012
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99. Simulation study for the higher sensitivity of an Electron-Tracking Compton Camera at over 1 MeV

Author

Takada, A., primary, Tanimori, T., additional, Kubo, H., additional, Miuchi, K., additional, Kabuki, S., additional, Parker, J. D., additional, Kishimoto, Y., additional, Mizumoto, T., additional, Ueno, K., additional, Kurosawa, S., additional, Iwaki, S., additional, Sawano, T., additional, Taniue, K., additional, Nakamura, K., additional, Higashi, N., additional, Matsuoka, Y., additional, Komura, S., additional, and Sato, Y., additional

Published
2011
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