811 research outputs found

    Licensure of Teachers from Women\u27s Colleges in Pre-War Japan

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    This paper describes and analyses the demands for automatic licensure of high school teachers in the light of institutionalization of higher education of women in the pre-war Japan by tracing the movement of the students and the educational organizations and examining the response of the govenment. In the latter Taisho to the early Showa era, many women enrolled in college and completed their college course to get licensure of teachers. The govenment started authorizing selected educational institutions to give license to their graduates who completed their teacher education program. Many women\u27s colleges applied for accreditation primarily because it ensured automatic licensure for their graduates. But it was not only reason. By being formally allowed by the government to issue teachers licenses, those schools could show that they have enough contents to take part in such an important function of the modern state. To be short, they were legitimized in the apparatus of modern state. This caused the expansion of the higher education of women and this expansion acceralated the institutionalization of the higher education of women

    ‘The history of the Ouinkai’ – the alumni association of the Tokyo higher normal school for women: a milestone in Japan’s education for women

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    The book, The History of the Ouinkai, was published in 1940 as a commemorative project for the 60th anniversary of the Tokyo Higher Normal School for Women (THNSW). The purpose of this article is to illustrate the type of data collected in the surveys and their findings, to explore some of the activities of the association, and to discuss how the Ouinkai alumni association, in collaboration with THNSW, worked with female teachers nationwide. The paper traces some of the multi-norms and multi-roles for female teachers that THNSW promoted and their relation to norms thought to characterise ‘ideal’ Japanese women. The publication of The History of the Ouinkai was a milestone in Japanese women’s education because it demonstrated the Ouinkai’s successes in respect of Japanese educational policy for women as well as the leadership that the Ouinkai provided to female graduate teachers, whom it organised with skill

    Characteristics of Highly Polymorphic Segmental Copy-Number Variations Observed in Japanese by BAC-Array-CGH

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    Segmental copy-number variations (CNVs) may contribute to genetic variation in humans. Reports of the existence and characteristics of CNVs in a large Japanese cohort are quite limited. We report the data from a large Japanese population. We conducted population screening for 213 unrelated Japanese individuals using comparative genomic hybridization based on a bacterial artificial chromosome microarray (BAC-aCGH). We summarize the data by focusing on highly polymorphic CNVs in ≥5.0% of the individual, since they may be informative for demonstrating the relationships between genotypes and their phenotypes. We found a total of 680 CNVs at 16 different BAC-regions in the genome. The majority of the polymorphic CNVs presented on BAC-clones that overlapped with regions of segmental duplication, and the majority of the polymorphic CNVs observed in this population had been previously reported in other publications. Some of the CNVs contained genes which might be related to phenotypic heterogeneity among individuals

    Coupled channel approach to strangeness S = -2 baryon-bayron interactions in Lattice QCD

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    The baryon-baryon interactions with strangeness S = -2 with the flavor SU(3) breaking are calculated for the first time by using the HAL QCD method extended to coupled channel system in lattice QCD. The potential matrices are extracted from the Nambu-Bethe-Salpeter wave functions obtained by the 2+1 flavor gauge configurations of CP-PACS/JLQCD Collaborations with a physical volume of 1.93 fm cubed and with m_pi/m_K = 0.96, 0.90, 0.86. The spatial structure and the quark mass dependence of the potential matrix in the baryon basis and in the SU(3) basis are investigated.Comment: 17 pages, 15 figure

    Estimation of broad-leaved canopy growth in the urban forested area using multi-temporal airborne LiDAR datasets

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    Inter-annual canopy growth is one of the key indicators for assessing forest conditions, but the measurements require laborious field surveys. Up-to-date LiDAR remote sensing provides sufficient three-dimensional morphological information of the ground to monitor canopy heights on a broad scale. Thus, we attempted to use multi-temporal airborne LiDAR datasets in the estimation of vertical canopy growth, across various types of broad-leaved trees in a large urban park. The growth of broad-leaved canopies in the EXPO '70 urban forest in Osaka, Japan was assessed with 19 plots at the stand level and 39 selected trees at the individual-tree level. Airborne LiDAR campaigns repeatedly observed the park in the summers of 2004, 2008, and 2010. We acquired canopy height models (CHMs) for each year from the height values of the uppermost laser returns at every 0.5 m grid. The annual canopy growth was calculated by the differences in CHMs and validated with the annual changes in field-measured basal areas and tree heights. LiDAR estimations revealed that the average annual canopy growth from 2004 to 2010 was 0.26 ± 0.11 m m−2 yr−1 at the plot level and 0.26 ± 0.10 m m−2 yr−1 at the individual-tree level. This result showed that growing trends were consistent at different scales through 2004 to 2010 despite uncertainty in estimating short-term growth for small crown areas at the individual-tree level. This LiDAR-estimated canopy growth shows a moderate relation to field-measured increase of basal areas and average heights. The estimation uncertainties seem to result from the complex canopy structure and irregular crown shape of broad-leaved trees. Challenges still remain on how to incorporate the growth of understory trees, growth in the lateral direction, and gap dynamics inside the canopy, particularly in applying multi-temporal LiDAR datasets to the large-scale growth assessment

    Baryon-Baryon Interactions in the Flavor SU(3) Limit from Full QCD Simulations on the Lattice

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    We investigate baryon-baryon (BB) interactions in the 3-flavor full QCD simulations with degenerate quark masses for all flavors. The BB potentials in the orbital S-wave are extracted from the Nambu-Bethe-Salpeter wave functions measured on the lattice. We observe strong flavor-spin dependences of the BB potentials at short distances. In particular, a strong repulsive core exists in the flavor-octet and spin-singlet channel (the 8_s representation), while an attractive core appears in the flavor singlet channel (the 1 representation). We discuss a relation of such flavor-spin dependence with the Pauli exclusion principle in the quark level. Possible existence of an H-dibaryon resonance above the Lambda-Lambda threshold is also discussed.Comment: 16 pages, 4 figures, ptptex.cls use

    Household smoking and dental caries in schoolchildren: the Ryukyus Child Health Study

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    <p>Abstract</p> <p>Background</p> <p>Secondhand smoke exposure (SHSe) is perhaps one of the most important toxic exposures in childhood. However, epidemiological studies on the relation between SHSe and dental caries are limited and have yielded inconsistent results. The present cross-sectional study examined the potential association between SHSe at home and the prevalence of dental caries in children.</p> <p>Methods</p> <p>Subjects were 20,703 schoolchildren aged 6 to 15 years in Okinawa, Japan. Information on SHSe at home and potential confounding factors was obtained through questionnaires. Data on dental caries were obtained from school records. Children were classified as having decayed and/or filled teeth (DFT) if a dentist diagnosed these conditions. Additionally, we analyzed decayed teeth (DT) and filled teeth (FT) separately. Adjustment was made for sex, age, region of residence, toothbrushing frequency, use of fluoride, sugar intake, and paternal and maternal educational level.</p> <p>Results</p> <p>The prevalence of DFT was 82.0%. Compared with never smoking in the household, former and current household smoking were independently associated with an increased prevalence of DFT (adjusted prevalence ratios [95% confidence intervals] for former household smoking and current light and heavy household smoking were 1.03 [1.00-1.05], 1.04 [1.02-1.05], and 1.04 [1.03-1.06], respectively); when analyzed separately there was an increased prevalence of DT (adjusted prevalence ratios [95% confidence intervals] for former household smoking and current light and heavy household smoking were 1.06 [1.02-1.11], 1.10 [1.06-1.13], and 1.10 [1.07-1.14], respectively) but not FT. A statistically significant dose-response relationship between cumulative smoking in the household and the prevalence of DFT and DT (<it>P </it>for trend < 0.0001), but not FT, was observed. In an analysis of 2 subgroups, subjects who had at least 1 deciduous tooth and subjects who had at least 1 permanent tooth, household smoking exposure was associated with an increased prevalence of DFT and DT not only in those with deciduous but also those with permanent dentition.</p> <p>Conclusion</p> <p>Our findings suggested that household smoking might be associated with an increased prevalence of dental caries in children.</p

    ΩΩ\Omega\Omega interaction from 2+1 flavor lattice QCD

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    We investigate the interaction between Ω\Omega baryons in the 1S0^1S_0 channel from 2+1 flavor lattice QCD simulations. On the basis of the HAL QCD method, the ΩΩ\Omega\Omega potential is extracted from the Nambu-Bethe-Salpeter wave function calculated on the lattice by using the PACS-CS gauge configurations with the lattice spacing a0.09a\simeq 0.09 fm, the lattice volume L2.9L\simeq 2.9 fm and the quark masses corresponding to mπ700m_\pi \simeq 700 MeV and mΩ1970m_\Omega \simeq 1970 MeV. The ΩΩ\Omega\Omega potential has a repulsive core at short distance and an attractive well at intermediate distance. Accordingly, the phase shift obtained from the potential shows moderate attraction at low energies. Our data indicate that the ΩΩ\Omega\Omega system with the present quark masses may appear close to the unitary limit where the scattering length diverges.Comment: 9 pages, 4 figures, 1 tabl
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