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Suzuki, Aya,Nobusawa, Sumihito,Natsume, Atsushi,Suzuki, Hiromichi,Kim, Young-Ho,Yokoo, Hideaki,Nagaishi, Masaya,Ikota, Hayato,Nakazawa, Takuro,Wakabayashi, Toshihiko,Ohgaki, Hiroko,Nakazato, Yoichi M. Nijhoff ; Kluwer Academic Publishers 2014 Journal of neuro-oncology Vol.120 No.2
<P>Diagnosis of low-grade diffuse gliomas based on morphology is highly subjective and, therefore, is often difficult, with significant intra- and interobserver variability. Here, we investigated WHO grade II diffuse astrocytomas, oligoastrocytomas and oligodendrogliomas for immunohistochemical expression of Olig2, measuring its labeling index (LI), and evaluated the significance of Olig2 LI in the histological and molecular classifications. The means of Olig2 LI in glioma cells were 43.7 % in diffuse astrocytomas, 59.3 % in oligoastrocytomas and 76.1 % in oligodendrogliomas. There was a statistically significant difference between all pairs of histological types. The mean of Olig2 LI of gliomas with 1p/19q loss ± IDH1/2 mutation, the majority of them being oligodendrogliomas, was significantly higher than the means of those with TP53 mutation ± IDH1/2 mutation and IDH1/2 mutation only, the majority of which were diffuse astrocytomas (70.1 vs. 47.2 and 46.5 %, respectively). When categorized according to the classification of Jiao et al., Olig2 LI of I-CF gliomas (cases with IDH and one or more of CIC, FUBP1 or combined 1p/19q loss; mean 71.0 %) was significantly higher than that of I-A gliomas (cases with IDH and ATRX alterations; mean 45.3 %). These molecular classifications were reported to correlate well with clinical outcome. However, borderlines of Olig2 LI were broad and could not clearly distinguish genotypes in the molecular classifications. In conclusion, Olig2 LI cannot be taken as a complete surrogate marker for molecular genotype, but could possibly provide some ancillary information when molecular assay is not availabe.</P>
Suzuki, Motohiro,Kim, Kab-Jin,Kim, Sanghoon,Yoshikawa, Hiroki,Tono, Takayuki,Yamada, Kihiro T.,Taniguchi, Takuya,Mizuno, Hayato,Oda, Kent,Ishibashi, Mio JAPAN SOCIETY OF APPLIED PHYSICS 2018 Applied physics express Vol.11 No.3
<P>An X-ray tomographic technique was developed to investigate the internal magnetic domain structure in a micrometer-sized ferromagnetic sample. The technique is based on a scanning hard X-ray nanoprobe using X-ray magnetic circular dichroism (XMCD). From transmission XMCD images at the Gd L-3 edge as a function of the sample rotation angle, the three-dimensional (3D) distribution of a single component of the magnetic vector in a GdFeCo microdisc was reconstructed with a spatial resolution of 360 nm, using a modified algebraic reconstruction algorithm. The method is applicable to practical magnetic materials and can be extended to 3D visualization of the magnetic domain formation process under external magnetic fields. (C) 2018 The Japan Society of Applied Physics</P>
Search for proton decay viap→νK+using260 kiloton·yeardata of Super-Kamiokande
Abe, K.,Hayato, Y.,Iyogi, K.,Kameda, J.,Miura, M.,Moriyama, S.,Nakahata, M.,Nakayama, S.,Wendell, R. A.,Sekiya, H.,Shiozawa, M.,Suzuki, Y.,Takeda, A.,Takenaga, Y.,Ueno, K.,Yokozawa, T.,Kaji, H.,Kajita American Physical Society 2014 PHYSICAL REVIEW D - Vol.90 No.7
Pulpal Regeneration Following Allogenic Tooth Transplantation into Mouse Maxilla
Unno, Hideki,Suzuki, Hironobu,Nakakura-Ohshima, Kuniko,Jung, Han-Sung,Ohshima, Hayato Wiley (John WileySons) 2009 The anatomical record Vol.292 No.4
<P>Autogenic tooth transplantation is now a common procedure in dentistry for replacing a missing tooth. However, there are many difficulties in clinical application of allogenic tooth transplantation because of immunological rejection. This study aims to clarify pulpal regeneration following allogenic tooth transplantation into the mouse maxilla by immunohistochemistry for 5-bromo-2'-deoxyuridine (BrdU) and nestin, and by the histochemistry for tartrate-resistant acid phosphatase (TRAP). The upper right first molar (M1) of 2-week-old mice was extracted and allografted in the original socket in both the littermate and non-littermate after the extraction of M1. Tooth transplantation weakened the nestin-positive reactions in the pulp tissue that had shown immunoreactivity for nestin before operation. On postoperative Days 5-7, tertiary dentin formation commenced next to the preexisting dentin where nestin-positive odontoblast-like cells were arranged in all cases of the littermate group until Day 14, except for one case showing immunological rejection in the pulp chamber. In the non-littermate group, bone-like tissue formation occurred in the pulp chamber in addition to tertiary dentin formation until Day 14. The rate of tertiary dentin was 38%, and the rate of the mixed form of dentin and bone-like tissue formation was 23% (the remainder was immunological rejection). Interestingly, the periodontal tissue recovered even in the case of immunological rejection in which the pulp chamber was replaced by sparse connective tissue. These results suggest that the selection of littermate or non-littermate is decisive for the survival of odontoblast-lineage cells and that the immunological rejection does not influence the periodontal regeneration.</P>
Search forn−n¯oscillation in Super-Kamiokande
Abe, K.,Hayato, Y.,Iida, T.,Ishihara, K.,Kameda, J.,Koshio, Y.,Minamino, A.,Mitsuda, C.,Miura, M.,Moriyama, S.,Nakahata, M.,Obayashi, Y.,Ogawa, H.,Sekiya, H.,Shiozawa, M.,Suzuki, Y.,Takeda, A.,Takeuch American Physical Society 2015 PHYSICAL REVIEW D - Vol.91 No.7
Measurement of Atmospheric Neutrino Flux Consistent with Tau Neutrino Appearance
Abe, K.,Hayato, Y.,Iida, T.,Ishihara, K.,Kameda, J.,Koshio, Y.,Minamino, A.,Mitsuda, C.,Miura, M.,Moriyama, S.,Nakahata, M.,Obayashi, Y.,Ogawa, H.,Shiozawa, M.,Suzuki, Y.,Takeda, A.,Takeuchi, Y.,Ueshi American Physical Society 2006 Physical review letters Vol.97 No.17
Assisting Authors to Convert Raw Products into Polished Prose
( Takumi Ito ),( Tatsuki Kuribayashi ),( Hayato Kobayashi ),( Ana Brassard ),( Masato Hagiwara ),( Jun Suzuki ),( Kentaro Inui ) 서울대학교 인지과학연구소 2020 Journal of Cognitive Science Vol.21 No.1
Being a notoriously complex problem, writing is generally decomposed into a series of subtasks: idea generation, expression, revision, etc. Given some goal, the author generates a set of ideas (brainstorming), which he integrates into some skeleton (outline, text plan, outline). This leads to a first draft which is submitted then for revision possibly yielding changes at various levels (content, structure, form). Having made a draft, authors usually revise, edit, and proofread their documents. We confine ourselves here only to academic writing, focusing on sentence production. While there has been quite some work on this topic, most writing assistance has mainly dealt with grammatical errors, editing and proofreading, the goal being the correction of surface-level problems such as typography, spelling, or grammatical errors. We broaden the scope by also including cases where the entire sentence needs to be rewritten in order to express properly all of the information planned. Hence, Sentence-level Revision (SentRev) becomes part of our writing assistance task. Obviously, systems performing well in this task can be of considerable help for inexperienced authors by producing fluent, well-formed sentences based on the user’s drafts. In order to evaluate our SentRev model, we have built a new, freely available crowdsourced evaluation dataset which consists of a set of incomplete sentences produced by nonnative writers paired with final version sentences extracted from published academic papers. We also used this dataset to establish baseline performance on SentRev.
Tanaka, T.,Abe, K.,Hayato, Y.,Iida, T.,Kameda, J.,Koshio, Y.,Kouzuma, Y.,Miura, M.,Moriyama, S.,Nakahata, M.,Nakayama, S.,Obayashi, Y.,Sekiya, H.,Shiozawa, M.,Suzuki, Y.,Takeda, A.,Takenaga, Y.,Ueno, IOP Publishing 2011 The Astrophysical journal Vol.742 No.2
<P>We present the result of an indirect search for high energy neutrinos from Weakly Interacting Massive Particle (WIMP) annihilation in the Sun using upward-going muon (upmu) events at Super-Kamiokande. Data sets from SKI-SKIII (3109.6 days) were used for the analysis. We looked for an excess of neutrino signal from the Sun as compared with the expected atmospheric neutrino background in three upmu categories: stopping, non-showering, and showering. No significant excess was observed. The 90% C. L. upper limits of upmu flux induced by WIMPs of 100 GeV c(-2) were 6.4 x 10(-15) cm(-2) s(-1) and 4.0 x 10(-15) cm(-2) s(-1) for the soft and hard annihilation channels, respectively. These limits correspond to upper limits of 4.5 x 10(-39) cm(-2) and 2.7 x 10(-40) cm(-2) for spin-dependent WIMP-nucleon scattering cross sections in the soft and hard annihilation channels, respectively.</P>