302 research outputs found
On Some Deep Water Corals from the Antarctic Sea
No full textP(論文)Hexacorals (Scleractinia), collected by the Japanese Antarctic Research Expedition in the sea off Prince Harald Coast near the Syowa Station during the 1957-1958 cruises, were studied and the following 9 species were identified by the author. Bathyactis symmetrica (POURTALES) Caryophyllia antarctica VON MARENZELLER Caryophyllia sp. Ceratotrochus? sp. Desmophyllum pseudoseptata EGUCHI, n. sp. Desmophyllum? sp. Flabellum distinctum M. EDW. et H. Fl. transversale conicum YABE et EGUCHI Fl. ongulense EGUCHI, n. sp. All the above genera are known as cosmopolitan and deep-sea corals. Three of them, Caryophyllia sp., Ceratotrochus? sp., and Desmophyllum? sp., are rather worn and even their generic identification is doubtful. Other two, D. pseudoseptata n. sp. and Fl. ongulense n. sp., are new to science. Cosmopolitan species are Bathyactis symmetrica and Flabellum distinctum; Fl. transversale conicum is common in the Japanese waters. Caryophyllia antarctica is an antarctic species known in other parts of the Antarctic Sea.departmental bulletin pape
The influence of the distance between the backrest of a chair and the position of the pelvis on the maximum pressure on the ischium and estimated shear force.
No full textP(論文)journal articl
The influence of the distance between the backrest of a chair and the position of the pelvis on the maximum pressure on the ischium and estimated shear force.
No full textA new construction of compact G2-manifolds by gluing families of Eguchi-Hanson spaces
No full textWe give a new construction of compact Riemannian 7-manifolds with holonomy . Let be a torsion-free -manifold (which can have holonomy a proper subgroup of ) such that admits an involution preserving the -structure. Then is a -orbifold, with singular set an associative submanifold of , where the singularities are locally of the form . We resolve this orbifold by gluing in a family of Eguchi-Hanson spaces, parametrized by a nonvanishing closed and coclosed -form on . Much of the analytic difficulty lies in constructing appropriate closed -structures with sufficiently small torsion to be able to apply the general existence theorem of the first author. In particular, the construction involves solving a family of elliptic equations on the noncompact Eguchi-Hanson space, parametrized by the singular set . We also present two generalizations of the main theorem, and we discuss several methods of producing examples from this construction
A new construction of compact torsion-free G2-manifolds by gluing families of Eguchi–Hanson spaces
No full textWe give a new construction of compact Riemannian 7-manifolds with holonomy G2. Let M be a torsion-free G2-manifold (which can have holonomy a proper subgroup of G2) such that M admits an involution ι preserving the G2-structure. Then M/⟨ι⟩ is a G2- orbifold, with singular set L an associative submanifold of M, where the singularities are locally of the form R3×(R4/{±1}). We resolve this orbifold by gluing in a family of Eguchi–Hanson spaces, parametrized by a nonvanishing closed and coclosed 1-form λ on L.
Much of the analytic difficulty lies in constructing appropriate closed G2-structures with sufficiently small torsion to be able to apply the general existence theorem of the first author. In particular, the construction involves solving a family of elliptic equations on the noncompact Eguchi–Hanson space, parametrized by the singular set L. We also present two generalizations of the main theorem, and we discuss several methods of producing examples from this construction
Investigation of validity of model for estimating shear force applied to buttocks in elderly people with kyphosis while sitting comfortably on a chair.
No full textP(論文)journal articl
Corrigendum: Three new species of the genus Biasticus Stål, 1867 (Insecta, Heteroptera, Reduviidae, Harpactorinae) from Central Highlands, Vietnam. ZooKeys 1118: 133–180. https://doi.org/10.3897/zookeys.1118.83156
No full textWe recently published the description of three new species of the genus Biasticus Stål, 1867 (Insecta, Heteroptera, Reduviidae, Harpactorinae) from Central Highlands, Vietnam (Ha NL, Truong XL, Ishikawa T, Jaitrong W, Lee CF, Chouangthavy B, Eguchi K 2022). However, the first author made mistakes when indicating the deposition of the holotype and paratype of the three new species regardless of some regulations and agreements about those specimens. In this corrigendum, we made a revision of the status of the holotype and paratype deposition
Acquisition of absolute pitch: The question of critical periods
No full textDescribes an adaptation of the first stages of Y. Oura and K. Eguchi's (1981) technique for training absolute pitch in preschoolers to 8 North American Ss (aged 2 yrs 10 mo to 4 yrs 11 mo) and 4 adults (aged 22-27 yrs). Most children and all adults mastered a transposed chord discrimination task but were less successful in chord identification. In contrast, Oura and Eguchi reported that Japanese children performed well on the latter task. The superior performance of the Japanese children may be attributable in part to a simpler chord training procedure
Investigation of validity of model for estimating shear force applied to buttocks in elderly people with kyphosis while sitting comfortably on a chair.
No full text
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