Search

Your search keyword '"Sekiguchi, Hiromi"' showing total 47 results
Start Over Author "Sekiguchi, Hiromi"
47 results on '"Sekiguchi, Hiromi"'

1. Fact-finding survey of doctors at the departments of pediatrics and pediatric surgery on the transition of patients with childhood-onset chronic disease from pediatric to adult healthcare

Author

Kikuchi, Ryota, primary, Sato, Iori, additional, Hirata, Yoichiro, additional, Sugiyama, Masahiko, additional, Iwasaki, Miwa, additional, Sekiguchi, Hiromi, additional, Sato, Atsushi, additional, Suzuki, Seigo, additional, Morisaki-Nakamura, Mayumi, additional, Kita, Sachiko, additional, Oka, Akira, additional, Kamibeppu, Kiyoko, additional, Ikeda, Mari, additional, and Kato, Motohiro, additional

Published
2023
Full Text
View/download PDF

2. Museum Personnel's Opinions on Mobile Guidance Systems

Author

Yoshimura, Hirokazu, Sekiguchi, Hiromi, and Yabumoto, Yoshitaka

Abstract

While opinions from the general public are certainly important, opinions from the museum staff are also necessary to improve user service systems. this article introduces two groups of museum staff who have evaluated the usability of mobile guidance systems in Japanese museums. One group is the research team who used the PDA system in the National Science Museum, Tokyo, and the other is the user-support staff of Kitakyushu Museum of Natural History and Human History. In the former research we asked the members of the group to give their comments about the usability of the PDA, and in the latter research we conducted open-ended interviews individually with the museum staff. As a result, we obtained various opinions from each group. They often differed in their opinions from those of the general public. (Contains 2 figures and 5 notes.)

Published
2007

3. What Impressions Do People Have regarding Mobile Guidance Services in Museums? Designing a Questionnaire that Uses Opinions from the General Public

Author

Sekiguchi, Hiromi and Yoshimura, Hirokazu

Abstract

Developers of museum service systems want to know what users think about their systems and they often design questionnaires to capture users' opinions. However, there are usually serious gaps between what developers want to know and what the users really think about the system. The present research aims to develop a questionnaire that takes into consideration the user's point of view, including opinions of people who do not want to use the system. We put the plan into practice by gathering opinions such as feelings, demands, and expectations about the systems from the general public. (Contains 1 table and 3 notes.)

Published
2007

4. Usefulness of linked color imaging for the detection of obscure early gastric cancer: Multivariate analysis of 508 lesions

Author

Khurelbaatar, Tsevelnorov, primary, Miura, Yoshimasa, additional, Osawa, Hiroyuki, additional, Nomoto, Yoshie, additional, Tokoro, Shinnosuke, additional, Tsunoda, Masato, additional, Sekiguchi, Hiromi, additional, Kobayashi, Takuma, additional, Funayama, Yohei, additional, Nagayama, Manabu, additional, Takezawa, Takahito, additional, Mieno, Makiko, additional, Ueno, Takashi, additional, Fukuda, Hisashi, additional, Iwashita, Chihiro, additional, Takahashi, Haruo, additional, Ino, Yuji, additional, Kawarai Lefor, Alan, additional, and Yamamoto, Hironori, additional

Published
2022
Full Text
View/download PDF

9. Long-Term Outcomes in Patients with Post-Bulbar Ulcer Bleeding Compared to Bulbar Ulcer Bleeding in the Duodenum.

Author

Sekiguchi, Hiromi, Shinozaki, Satoshi, Takezawa, Takahito, Osawa, Hiroyuki, Miura, Yoshimasa, Lefor, Alan Kawarai, and Yamamoto, Hironori

Subjects
*DUODENAL ulcers, *ULCERS, *PROPORTIONAL hazards models, *CHRONIC kidney failure, *TREATMENT effectiveness
Abstract

Background: Duodenal ulcers are classified into bulbar and post-bulbar ulcers. The aim of this study is to compare the long-term outcomes of patients with post-bulbar ulcer bleeding and those with bulbar ulcer bleeding. Methods: A total of 272 patients with hemorrhagic duodenal ulcers requiring hospitalization were included. Their medical records were retrospectively reviewed. Results: All patients were categorized as bulbar or post-bulbar bleeding ulcer groups. The post-bulbar ulcer group had more patients of advanced age, concurrent malignancy, diabetes mellitus, hypertension, cirrhosis, and chronic kidney disease undergoing hemodialysis. We performed long-term follow-up for an average of 2.6 years. The mortality rate during the follow-up period in the post-bulbar ulcer group was significantly higher than that in the bulbar ulcer group (p < 0.001). The PNED score was a better predictor of 30-day mortality compared to the complete Rockall score and the Glasgow-Blatchford Score. Predictors of mortality were evaluated using a Cox proportional hazards regression model. In multivariate analysis, post-bulbar ulcer, concurrent malignancy, cirrhosis, antiplatelet/anticoagulant use, and transfusion were significant predictors of mortality. Conclusions: Patients with post-bulbar ulcers have a poorer prognosis than those with bulbar ulcers. After the diagnosis of hemorrhagic post-bulbar duodenal ulcer, close follow-up is necessary. [ABSTRACT FROM AUTHOR]

Published
2022
Full Text
View/download PDF

11. Nurses’ perceptions regarding transitional care for adolescents and young adults with childhood‐onset chronic diseases

Author

Suzuki, Seigo, primary, Kita, Sachiko, additional, Morisaki, Mayumi, additional, Kikuchi, Ryota, additional, Sato, Iori, additional, Iwasaki, Miwa, additional, Otomo, Eiko, additional, Sekiguchi, Hiromi, additional, Hirata, Yoichiro, additional, Sato, Atsushi, additional, Sugiyama, Masahiko, additional, and Kamibeppu, Kiyoko, additional

Published
2020
Full Text
View/download PDF

14. Characterization of binary Ce–Ir alloy photocathodes

Author

Satoh, Daisuke, primary, Shibuya, Tatsunori, additional, Ogawa, Hiroshi, additional, Tanaka, Masahito, additional, Ikeura-Sekiguchi, Hiromi, additional, Kuroda, Ryunosuke, additional, Yoshida, Mitsuhiro, additional, Sugawara, Hitoshi, additional, and Toyokawa, Hiroyuki, additional

Published
2019
Full Text
View/download PDF

24. Low-pressure endoscopy using the gel immersion method facilitates endoscopic variceal ligation of ruptured esophageal varices.

Author

Sekiguchi, Hiromi, Yano, Tomonori, Tokoro, Shinnosuke, Iida, Mizuho, Tano, Shigeo, Lefor, Alan Kawarai, and Yamamoto, Hironori

Subjects
*GASTROINTESTINAL hemorrhage diagnosis, *GASTROINTESTINAL hemorrhage treatment, *ENDOSCOPIC surgery, *GASTROINTESTINAL hemorrhage, *ESOPHAGEAL varices, *WATER, *VARICOSE veins, *SCLEROTHERAPY, *ENDOSCOPY, *LIGATURE (Surgery), *DISEASE complications
Abstract

Low-pressure endoscopy using the gel immersion method has the potential to facilitate EVL of ruptured esophageal varices with fibrosis. Gel immersion endoscopy: a novel method to secure the visual field during endoscopy in bleeding patients (with videos). [Extracted from the article]

Published
2022
Full Text
View/download PDF

38. One-dimensional Grazing Incidence Zone Plate For Focusing Soft X-rays.

Author

Koike, Masaki, Ikeura-Sekiguchi, Hiromi, Suzuki, Isao H., and Warwick, T.

Subjects
*GRAZING incidence, *GRENZ rays, *ZONE plates, *OPTICAL instruments, *OPTICS, *ELECTRON beam lithography
Abstract

We have designed and manufactured a grazing incidence FZP having a non-symmetrical one-dimensional zone structure in order to minimize an outermost zone width. The focal spot size obtained by the FZP is determined by the outermost zone width, and which depends on the manufacturing technique. The projected zone width can be decreased as sine function of the incidence angle. Overall dimension of the zone plate is calculated on the basis that the optical pass difference must be the multiple of a half the wavelength. Two dimensional focusing can be conducted by using a pair of them for vertical and horizontal focusing, correspondingly. Another advantage of the device is that the same focal length can be obtained in case of changing the wavelength. In the case of conventional FZP, experiments using variable wavelength, such as micro-EXAFS, are very difficult because the focal length shifts inversely proportional to the wavelength. The focal length shift can be corrected by changing the incidence angle in the case of the grazing incidence FZP. Electron beam lithography and reactive ion etching technique are used to manufacture FZP. Vanadium is chosen as FZP material since it has high etching rate with CF4 gas. © 2004 American Institute of Physics [ABSTRACT FROM AUTHOR]

Published
2004
Full Text
View/download PDF

41. Toxicity study of a rubber antioxidant, 2-mercaptobenzimidazole, by repeated oral administration to rats.

Author

KAWASAKI, Yasushi, primary, UMEMURA, Takashi, additional, SAITO, Minoru, additional, MOMMA, Junko, additional, MATSUSHIMA, Yuko, additional, SEKIGUCHI, Hiromi, additional, MATSUMOTO, Mami, additional, SAKEMI, Kazue, additional, ISAMA, Kazuo, additional, INOUE, Tohru, additional, KUROKAWA, Yuji, additional, and TSUDA, Mitsuhiro, additional

Published
1998
Full Text
View/download PDF

46. High-resolution three-dimensional scanning transmission electron microscopy characterization of oxide–nitride–oxide layer interfaces in Si-based semiconductors using computed tomography.

Author

Sadayama, Shoji, Sekiguchi, Hiromi, Bright, Alexander, Suzuki, Naohisa, Yamada, Kazuhiro, and Kaneko, Kenji

Subjects
*INTERFACES (Physical sciences), *OXIDES, *NITRIDES, *SCANNING transmission electron microscopy, *SILICON, *SEMICONDUCTORS, *TOMOGRAPHY
Abstract

Oxide–nitride–oxide (ONO) layer structures are widely used for charge storage in flash memory devices. The ONO layer interfaces should be as flat as possible, so measurement of the nanoscale roughness of those interfaces is needed. In this study, quantification of an ONO film from a commercially available flash memory device was carried out with a pillar-shaped specimen using scanning transmission electron microscopy (STEM) and computed tomography. The ONO area contained only low Z- and low STEM-contrast materials, which makes high-quality reconstruction difficult. The optimum three-dimensional reconstruction was achieved with an STEM annular dark-field detector inner collection angle of 32 mrad, a sample tilt range from −78° to +78° and 25 iterations for the simultaneous iterative reconstruction technique. [ABSTRACT FROM PUBLISHER]

Published
2011
Full Text
View/download PDF

47. Development of advanced quantum radiation source based on s-band compact electron linac

Author

Kuroda, Ryunosuke, Ikeura-Sekiguchi, Hiromi, Koike, Masaki, Ogawa, Hiroshi, Sei, Norihiro, Toyokawa, Hiroyuki, Yamada, Kawakatsu, and Yasumoto, Masato

Subjects
Astrophysics::High Energy Astrophysical Phenomena, U05 Applications, Other, Physics::Optics, 08 Applications of Accelerators, Technology Transfer and Industrial Relations, Accelerator Physics
Abstract

Advanced quantum radiation sources such as a laser Compton scattering X-ray source and a coherent THz radiation source have been developed based on an S-band compact electron linac at AIST in Japan. The laser Compton scattering X-ray source using a TW Ti:Sa laser can generate a hard X-ray pulse which has variable energy of 12 keV - 40 keV with narrow bandwidth by changing electron energy and collision angle for medical and biological applications. The coherent THz radiation source based on the electron linac has been also developed instead of a conventional laser based THz source. The designed THz pulse has high peak power more than 1 kW in frequency range between 0.1 - 2 THz. The THz pulse will be generated with coherent radiation such as synchrotron radiation and transition radiation using an ultra-short electron bunch with bunch length of less than 0.5 ps (rms). The coherent synchrotron radiation in the THz region has been already generated and it will be applied to the THz time domain spectroscopy (TDS). In this work shop, we will report present status of our advanced quantum radiation sources., Proceedings of the 1st International Particle Accelerator Conference, IPAC2010, Kyoto, Japan

Catalog

Books, media, physical & digital resources
See catalog results