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Nagoya-shi, Japan

Aichi Shukutoku University is a private university in Nagakute, Aichi, Japan. The predecessor of the school was founded in 1905. It was chartered as a women's college in 1975 and became co-educational in 1995. Wikipedia.

Sotani H.,Kyoto University | Nakazato K.,Tokyo University of Science | Iida K.,Kochi University | Oyamatsu K.,Aichi Shukutoku University
Monthly Notices of the Royal Astronomical Society | Year: 2013

We systematically examine the fundamental frequencies of shear torsional oscillations in neutron star crusts in a manner that is dependent on the parameter L characterizing the poorly known density dependence of the symmetry energy. The identification of the lowest quasiperiodic oscillation (QPO) among the observedQPOs from giant flares in soft-gamma repeaters as the l = 2 fundamental torsional oscillations enables us to constrain the parameter L as L ≤ 47.4MeV, which is the most conservative restriction on L obtained in the present work that assumes that the mass and radius of the flaring neutron stars range 1.4-1.8M⊙ and 10-14 km. Next, we identify one by one a set of the low-lying frequencies observed in giant flares as the fundamental torsional oscillations. The values of L that can reproduce all the observed frequencies in terms of the torsional oscillations coupled with a part of dripped neutrons via entrainment effects are then constrained as 101.1 ≤ L ≤ 131.0MeV. Alternatively, if only the second lowest frequency observed in SGR 1806-20 has a different origin, one obtains relatively low L values ranging 58.0 ≤ L ≤ 85.3MeV, which seem more consistent with other empirical constraints despite large uncertainties. © 2013 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society.

Kashii S.,Aichi Shukutoku University
Journal of Neuro-Ophthalmology | Year: 2014

Immunoglobulin G4-related disease (IgG4-RD) is a multifocal inflammatory disorder that causes tumefactive lesions with a dense lymphoplasmacytic infiltrate rich in IgG4 plasma cells and storiform-pattern fibrosis. The clinical symptoms are relatively mild, and the condition is usually recognized by organ swelling and damage. When referring to the ophthalmic manifestations of IgG4-RD, the term IgG4-related ophthalmic disease (IgG4-ROD) is used. IgG4-ROD is characterized by bilateral lacrimal gland enlargement accompanied by 3 distinctive features: infraorbital nerve enlargement, extraocular myo-sitis, and compressive optic neuropathy. IgG4 implies an underlying systemic disease process requiring evaluation to detect other systemic involvement. This includes hypo-physitis and hypertrophic pachymeningitis, entities of neuro-ophthalmic interest. IgG4-ROD usually responds favorably to systemic corticosteroids but may be compli-cated by relapse during steroid taper. Rituximab has been shown to be effective for controlling steroid-refractory IgG4-RD. In contrast to IgG4-RD, an increasing number of cases of extranodal marginal B-cell lymphoma (MALT type) associated with IgG4-ROD have been described. IgG4 may be a risk factor for later emergence of low-grade B-cell lymphoma. © 2014 by North American Neuro-Ophthalmology Society.

Hirata Y.,Colgate University | Amano S.,Aichi Shukutoku University
Journal of the Acoustical Society of America | Year: 2012

This study examined the durational structure of single and geminate stop distinction produced in three- and four-mora words of Japanese, (C 1)V1(C2)C2V2X [(C 2)C2 the contrasting consonants; X a CV mora, the moraic nasal, or a long vowel as part of V2]. The questions addressed were how factors such as speaking rate, segmental variability, and moraic composition of words affected the stop quantity distinction in words longer than well-studied disyllabic words, and whether there exists an invariant parameter that classified these two stop categories. Results showed that all of those factors systematically affected the duration of the contrasting stop closure, the unit of [(C1)V1(C2)C2V 2], and the entire three- and four-mora words. However, the durational units of moras and words were well-structured, and the ratio of the contrasting stop closure to the [(C1)V1(C 2)C2V2] unit, as well as the ratio of the closure to the entire word, were found to be invariant in indicating the stop quantity distinction. These results support the theory of relational acoustic invariance [Pickett, Phonetica 56, 135-157 (1999)] on the part of production. Furthermore, the results provide insight into different versions of Japanese mora hypothesis [Han, The Study of Sounds 10, 65-80 (1962); Port, J. Acoust. Soc. Am. 81(5), 1574-1585 (1987)], which have been under debate for five decades. © 2012 Acoustical Society of America.

The aim of this study was to clarify the effects of tendinous tissue properties on origin of greater force output at short inter-pulse intervals in the 2-pulse trains compared to those at longer inter-pulse intervals. Thus, this study investigated the contributions of the second stimulus (C2) in 2-pulse trains with different inter-pulse intervals on the torque response and tendinous tissue properties of human skeletal muscle in vivo. The torque response and tendinous tissue elongation following single pulses and 2-pulse trains at different inter-pulse intervals (5, 10, 20, 30, 40, 50, 80, 100, 150, and 200 ms) were recorded in the tibialis anterior muscle using real-time ultrasonography. C2 with inter-pulse intervals of 5-100 ms invoked significantly greater torque responses than single pulses. In contrast, the elongation and compliance of tendinous tissue for C2 with inter-pulse intervals from 5-80 ms were significantly lower than those of the single-pulse response. A significant negative relationship between torque response and tendinous tissue compliance was observed in C2 with different inter-pulse intervals. The torque response as a result of C2 is greater at short inter-pulse intervals in which the force summation due to second stimulus coincides with the period of decreased tendinous tissue compliance due to the first stimulus.

Sotani H.,Japan National Astronomical Observatory | Nakazato K.,Tokyo University of Science | Iida K.,Kochi University | Oyamatsu K.,Aichi Shukutoku University
Physical Review Letters | Year: 2012

We general-relativistically calculate the frequency of fundamental torsional oscillations of neutron star crusts, where we focus on the crystalline properties obtained from macroscopic nuclear models in a way that is dependent on the equation of state of nuclear matter. We find that the calculated frequency is sensitive to the density dependence of the symmetry energy, but almost independent of the incompressibility of symmetric nuclear matter. By identifying the lowest-frequency quasiperiodic oscillation in giant flares observed from soft gamma-ray repeaters as the fundamental torsional mode and allowing for the dependence of the calculated frequency on stellar models, we provide a lower limit of the density derivative of the symmetry energy as L 50MeV. © 2012 American Physical Society.

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