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339 results on '"Ohta, E."'

2. Topic: Inguinal Hernia — Unsolved problem in the daily practice

Author

Yasuo, S., Kenichi, Y., Ueno, N., Arimoto, A., Hosono, M., Yoshikawa, T., Toyokawa, A., Kakeji, Y., Tsai, Y., Tsai, C., Sul, J., Lim, M., Park, J., Jang, C. E., Santilli, O., Tripoloni, D., Santilli, H., Nardelli, N., Greco, A., Estevez, M., Sakurai, S., Ryu, S., Cesana, G., Ciccarese, F., Uccelli, M., Grava, G., Castello, G., Carrieri, D., Legnani, G., Olmi, S., Naito, M., Yamamoto, H., Sawada, Y., Mandai, Y., Asano, H., Ino, H., Tsukuda, K., Nagahama, T., Ando, M., Ami, K., Arai, K., Miladinovic, M., Kitanovic, A., Lechner, M., Mayer, F., Meissnitzer, M., Fortsner, R., Öfner, D., Köhler, G., Jäger, T., Kumata, Y., Fukushima, R., Inaba, T., Yaguchi, Y., Horikawa, M., Ogawa, E., Katayama, T., Kumar, P. S., Unal, D., Caparlar, C., Akkaya, T., Mercan, U., Kulacoglu, H., Barreiro, J. Jorge, Baer, I. García, García, L. Solar, Cumplido, P. Lora, Florez, L. J. García, Muñiz, P. Fernandez, Fujino, K., Mita, K., Ohta, E., Takahashi, K., Hashimoto, M., Nagayasu, K., Murabayashi, R., Asakawa, H., Koizumi, K., Hayashi, G., Ito, H., Felberbauer, F., Strobl, S., Kristo, I., Riss, S., Prager, G., El Komy, H., El Gendi, A., Nabil, W., Karam, M., El Kayal, S., Chihara, N., Suzuki, H., Watanabe, M., Uchida, E., Chen, T., Wang, J., Wang, H., Bouchiba, N., Elbakary, T., Ramadan, A., Elakkad, M., Berney, C., Vlasov, V., Babii, I., Pidmurnyak, O., Prystupa, M., Asakage, N., Molinari, P., Contino, E., Guzzetti, L., Oggioni, M., Sambuco, M., Berselli, M., Farassino, L., Cocozza, E., Crespi, A., Ambrosoli, A., and Zhao, Y.

Published
2015
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7. Low symmetry configurations of vacancy-oxygen complexes in irradiated silicon.

Author

Kusano, Y., Saito, H., Vlasenko, L. S., Vlasenko, M. P., Ohta, E., and Itoh, K. M.

Subjects
ELECTRON paramagnetic resonance, SYMMETRY, ANNEALING of metals, PARAMAGNETIC resonance, SILICON crystals, LATTICE theory, MATHEMATICAL models
Abstract

Two new electron paramagnetic resonance (EPR) spectra, labeled KU2 and KU3, emerge as a result of annealing of γ-ray irradiated silicon crystals in the temperature range 360-560°C. The EPR intensities of KU2 and KU3 increase in the upper range of the annealing temperature where the EPR peaks of the vacancy-oxygen complex (A-center) diminish. The angular dependence study shows that the EPR spectra of KU2 and KU3 resemble that of SL1, the excited triplet (spin S=1) state of A-centers, but with slightly different g and D-tensors representing lowering in symmetries. Microscopic lattice distortions caused by capturing of extra interstitial oxygen atoms by the A-centers are proposed to be the source of lowering of the symmetries associated with KU2 and KU3. [ABSTRACT FROM AUTHOR]

Published
2015
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8. Magnetization of cadmium ferrite prepared by coprecipitation

Author

Yokoyama, M., Sato, T., and Ohta, E.

Subjects
Magnetization -- Usage, Transmission electron microscopes -- Usage, Precipitation (Chemistry) -- Usage, Ferrites (Magnetic materials) -- Research, X-rays -- Diffraction, Physics
Published
1996

14. On the behavior of interaction of a Pt-related center with radiation-induced defects and the trace platinum detection.

Author

Weng, Y. M., Ohta, E., and Sakata, M.

Subjects
*PLATINUM, *ELECTRONS, *IRRADIATION
Abstract

Presents a study that observed the interaction of platinum with electron irradiation-induced defects. Description of the silicon wafer samples used; Effect of electron irradiation on the samples of different platinum concentration; Expression for the mechanism that qualitatively indicates the increase of the A center concentration due to the presence of platinum during electron irradiation.

Published
1989
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15. Iron-related deep levels in n-type silicon.

Author

Kakishita, K., Kawakami, K., Suzuki, S., Ohta, E., and Sakata, M.

Subjects
SPECTRUM analysis, ELECTRIC transients, SILICON, IRON
Abstract

Presents a study which investigated by transient spectroscopy the deep levels in iron-doped n-type silicon. Experiment; Results and discussion; Conclusion.

Published
1989
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17. Fabrication of multilayer Pb(Zr0.53Ti0.47)O3 film crystallized by laser annealing

Author

Chen, X., Yagi, M., Akiyama, Y., Machida, O., Ohta, E., Meixner, M., Stollenwerk, J., Boettger, U., Schneller, T., and Publica

Abstract

Crystallization of Pb(Zr0.53Ti0.47)O3 (PZT) films derived from sol-gel precursor solutions using a continuous-wave (CW) 980 nm semiconductor laser is discussed in this paper. By using a 0.3 M precursor solution and repeating 4 times a sequence of drying, pyrolysis, and laser annealing (LA) processes, 150-nm-thick PZT films with (111)-preferred texture are obtained. By adjusting the laser power according to the variation in film thickness, PZT crystallization is induced throughout the film, which is confirmed by electron diffraction patterns. The dielectric constant and loss tangent measured with an oscillation voltage of 0.8 V at 10 kHz are 1200 and 0.078, respectively. The remanent polarization and coercive field of the LA-PZT film are 30 µC/cm2 and 104 kV/cm, respectively. The field-induced strain property calculated from the voltage-displacement curve obtained by an atomic force microscopy measurement is comparable to that of the PZT film fabricated by rapid thermal annealing.

Published
2013

22. Novel mutations in the guanosine triphosphate cyclohydrolase 1 gene associated with DYT5 dystonia

Author

Ohta, E., Funayama, M., Ichinose, Hiroshi, Toyoshima, I., Urano, F., Matsuo, M., Tomoko, N., Yukihiko, K., Yoshino, S., Yokoyama, H., Shimazu, H., Maeda, K., Hasegawa, K., and Obata, F.

Subjects
Adult, Male, Threonine, Adolescent, Sequence analysis, DNA Mutational Analysis, Biology, medicine.disease_cause, Gene dosage, Neopterin, Frameshift mutation, chemistry.chemical_compound, Exon, Arts and Humanities (miscellaneous), Japan, medicine, Animals, Humans, Isoleucine, Child, GTP Cyclohydrolase, Dystonia, Genetics, Mutation, Intron, Exons, medicine.disease, Biopterin, chemistry, Dystonic Disorders, Child, Preschool, Female, Neurology (clinical), Microsatellite Repeats
Abstract

Objectives To better understand the relationship between mutation of the guanosine triphosphate cyclohydrolase I (GCH1) gene and the etiology of DYT5 dystonia and to accumulate data on the mutation in the Japanese population for genetic diagnosis of the disease. Setting Japanese population. Patients Eight Japanese patients with suspected DYT5 dystonia were analyzed. Intervention Direct genomic sequencing of 6 exons of GCH1 was performed. Main Outcome Measures For patients who did not exhibit any abnormality in the sequence analysis, the possibility of exon deletions was examined. In cases for which cerebrospinal fluid was available, the concentrations of neopterin and biopterin were measured as an index of GCH1 enzyme activity. Results In 2 patients, we found a new T106I mutation in exon 1 of GCH1 , a position involved in the helix-turn-helix structure of the enzyme. In the third patient, we found a new mutation (a 15–base pair nucleotide deletion) in exon 5 that may cause a frameshift involving the active site. In the fourth patient, we detected a known nucleotide G>A substitution in the splice site of intron 5, which has been reported to produce exon 5–skipped messenger RNA. The concentrations of both neopterin and biopterin in the cerebrospinal fluid of the third and fourth patients were markedly lower than the normal range, indicating that the GCH1 enzyme was functionally abnormal in these mutations. Gene dosage analysis showed that the fifth patient had a deletion of both exon 3 and exon 4, whereas the sixth patient had a deletion of exon 3. Conclusions We found several novel, as well as known, GCH1 mutations in Japanese patients with DYT5 dystonia. In some of them, the GCH1 enzyme activity was proved to be impaired.

Published
2006

24. Combined Effects of Polymorphisms of DNA-repair Protein Genes and Metabolic Enzyme Genes on the Risk of Cholangiocarcinoma

Author

Zeng, L., primary, You, G., additional, Tanaka, H., additional, Srivatanakul, P., additional, Ohta, E., additional, Viwatthanasittiphong, C., additional, Matharit, M., additional, Chenvidhya, D., additional, Jedpiyawongse, A., additional, Tanaka, M., additional, Fujii, T., additional, Sripa, B., additional, Ohshima, K., additional, Miwa, M., additional, and Honjo, S., additional

Published
2013
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35. Adaptability of AgSbTe2 to FGM

Author

Yoneda, S., primary, Ohta, E., additional, Shinohara, Yoshikazu, additional, Kimura, T., additional, Nishida, Isao A., additional, and Kaibe, H.T., additional

Published
1999
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