163,432 research outputs found
Dúo Yamamoto, dúo de pianos (Japón)
No full textCon el recital de hoy continuamos una exploración del repertorio para dúos de pianos y de las posibilidades interpretativas que ofrece este singular formato. Aparte de la obra de Stravinsky, el Dúo Yamamoto interpretará repertorio clásico (Mozart), romántico (Chopin), contemporáneo (Ho) y de diferentes estilos del siglo XX incluyendo obras del estadounidense William Bolcom y del polaco Witold Lutostawski - un programa ciertamente rico y ambicioso.
Las hermanas Yuka y Ayaka Yamamoto se unieron como dúo en 2009 y desde entonces han obtenido numerosos premios en concursos nacionales e internacionales, entre los que se cuentan la medalla de oro del XII Concurso Internacional Dranoff de Dos Pianos, en Miami, Florida
Characteristics of overlap region in high-Reynolds number turbulent channel flow
No full textDirect numerical simulation of the fully developed turbulent channel flows have been carried out at the Reynolds number based on the friction velocity and the channel half width, 2000, 4000 and 8000. A hybrid 10th order accurate finite difference scheme in the stream and spanwise directions, and a second-order scheme in the wall-normal direction is adapted as the spatial discretization method. We observed the plateau profiles in the indicator function corresponded to the von Karman constant. Furthermore, second peak of streamwise pre-multiplied spectra were appeared in the same wall normal height, 300 < y+ < 600, in case of Re = 4000. Nevertheless, the effects of the lager than the channel half height scale on the streamwise turbulent intensity are fixed contributions without dependence on Reynolds number. These results suggested that the new streamwise vortexes are formed between buffer layer and outer layer with increasing of Reynolds number
Polypedilum (Uresipedilum) dissimilum Yamamoto & Yamamoto, 2015, sp. nov.
No full textPolypedilum (Uresipedilum) dissimilum sp. nov. (Figs. 7–10) Type material. Holotype male (No. OPU-NY 501). Japan, Hokkaido, Monbetsu-gun, Kamiyubetsu, 9. ix. 2008, Y. Yamaguchi. Diagnosis. The species resembles P. convictum (Walker, 1856) in general appearance and the structure of the male hypopygium. However, it is easily distinguished by having a IX tergum with T-shaped tergal band which is unique to species. Etymology. From Latin dissimilis, differ, referring to shape of tergal band differing from any other member of subgenus Uresipedilum. Male (n= 1). Total length 2.8 mm. Wing 1.6 mm long. 0.5 mm wide; wing length / wing width 3.20. Coloration. Predominantly pale yellow except lateral vittae of scutum, medioanepisternum II and preepisternum II pale brown. Head. Temporal setae 12. AR 1.58. Palpomere lengths (in Μm): 40, 40, 112, 100, 176; palpomeres with 1, 4, 13, 11, 9 setae, respectively. Clypeus with 11 setae. Cibarial pump 40 Μm long, weakly developed. Thorax. Lateral antepronotal seta absent; dorsocentrals 12 including no humerals, uniserial; acrostichals 10, biserial, beginning just behind antepronotum; prealars 5, uniserial; supraalars 0. Scutellum with 15 setae, biserial. Wing (Fig. 7). VR 1.21. Brachiolum with 1 median seta; with 8 basal, 3 median, 11 subapical sensilla campaniformia. R, R 1 and R 4 + 5 with 18, 13, 22 setae, respectively. Legs (Figs. 8–9). Fore tibia with apical rounded scale without spine. Fore, mid and hind coxae with 3, 6, 3 setae, respectively; fore, mid and hind trochanters with 8, 5, 8 marginal setae, respectively. Lengths and proportions of legs as in Table 2. Hypopygium (Fig. 10). Tergum IX with T-shaped tergal band and with 2 median setae. Anal point long and slender, slightly constricted at middle, with rounded apex. Superior volsella with basal portion wide and its outer portion slightly produced posteriorly, bearing microtrichia on dorsolaterally, and with 1 long setae on its outer portion of posterior margin, with bare short projection. Inferior volsella rather wide and strongly constricted at outer margin of apical 1 / 4, not reaching the tip of anal point, with 17 setae on apical 1 / 3 of which the apical one is long and extending posteriorly. Sternapodeme narrow, without anterolateral projection, with anterior margin nearly 1 / 4 as wide as gonocoxite width. Gonocoxite with 5 uniserially arranged setae on its inner margin. Gonostylus long, lunate, with 8 setae on inner margin of apical 2 / 3. Distribution. Japan (Hokkaido).Published as part of Yamamoto, Nao & Yamamoto, Masaru, 2015, A revised subgeneric position for Polypedilum (Probolum) simantokeleum, with description of a new Uresipedilum species in Japan (Diptera: Chironomidae), pp. 439-445 in Zootaxa 3999 (3) on page 442, DOI: 10.11646/zootaxa.3999.3.9, http://zenodo.org/record/23283
Presentación de Raymond Yamamoto (Aarhus University)
No full textPresentación de Raymond Yamamoto (Aarhus University) en la que explora la evolución de la Ayuda Oficial al Desarrollo de Japón y los objetivos estratégicos de política exterior para los cuales se ha usado desde los años 50 hasta la actualidadProyecto de investigación: FYL_074.24_INN: Aprendizaje Basado en Entrevistas, Casos y Experiencias sobre Economía y Empresa Japonesa (ABECE-Japón
Determination of Electrical Parameters for Skin during Galvanic Skin Reflex from Continuous Measurement
No full textSkin impedance satisfies the Cole-Cole arc's law. The change of skin impedance during GSR (Galvanic Skin Reflex) can be expressed by the change of equivalent parallel resistance approximately. Using these characteristics, the complicated change of skin impedance during GSR can be determined continuously from the measurement value in one frequency point
Aleochara (Aleochara) yaeyamensis Yamamoto & Maruyama, 2016, n. sp.
No full textAleochara (Aleochara) yaeyamensis n. sp. (Figs 7, 16, 25, 34, 42, 86– 92, 120, 126) Type material. Holotype: male, Kanpireno-taki Fall, Taketomi-chô (Iriomote-jima Is.), Okinawa-ken, JAPAN, 28.iii. 2014, S. Yamamoto leg., from chicken carrion trap in evergreen broad-leaved forests (Fig. 120) (KUM). Paratypes. JAPAN: Okinawa-ken: 7 unsexed, Yonebaru, Ishigaki-shi (Ishigaki-jima Is.), 24.iii– 1.iv. 2007, T. Watanabe leg. (cTW); 2 unsexed, Mt. Omoto-dake, Ishigaki-shi (Ishigaki-jima Is.), 17.iv. 1963, H. Nomura leg. (cYH); 2 unsexed, Mt. Omoto-dake, Ishigaki-shi (Ishigaki-jima Is.), 23.iii. 1975, H. Ôishi leg. (KUM); 1 female, Mt. Omoto-dake, Ishigaki-shi (Ishigaki-jima Is.), 9.vi. 1977, K. Kawada leg. (KUM); 1 unsexed, Mt. Omoto-dake, Ishigaki-shi (Ishigaki-jima Is.), 6.iv. 1998, T. Ueo leg. (KUM); 1 male, Mt. Omoto-dake (trailhead), Ishigaki-shi (Ishigaki-jima Is.), 30.iv. 2007, K. Haga leg., from human feces (KUM); 2 females, 5 unsexed, Mt. Omoto-dake, Ishigaki-shi (Ishigaki-jima Is.), 2–5.ii. 2009, H. Ono leg., from baited trap (KUM); 1 unsexed, Mt. Omoto-dake, Ishigaki-shi (Ishigaki-jima Is.), 14.iv. 2014, S. Yamamoto leg. (KUM); 1 unsexed, Mt. Omoto-dake, Ishigaki-shi (Ishigaki-jima Is.), 15.iv. 2014, S. Yamamoto leg. (KUM); 4 males, 33 unsexed, Mt. Omoto-dake, Ishigaki-shi (Ishigaki-jima Is.), 17.iv. 2014, S. Yamamoto leg., from chicken carrion baited trap (KUM); 10 unsexed, Takedarindô forestry road, Ishigaki-shi (Ishigaki-jima Is.), 24.iii– 1.iv. 2007, T. Watanabe leg. (cTW); 1 female, Shiramizu, Ishigaki-shi (Ishigaki-jima Is.), 12.ix. 1993, M. Ôhara leg. (KUM); 1 female, Mt. Banna-dake, Ishigaki-shi (Ishigaki-jima Is.), 23.iii. 2003, M. Hanatsuka leg. (KUM); 1 female, Mt. Banna-dake, Ishigaki-shi (Ishigaki-jima Is.), 23.iv. 2003, M. Hanatsuka leg. (KUM); 2 males, 2 females, 6 unsexed, Mt. Yarabu-dake, Ishigaki-shi (Ishigakijima Is.), 11.iv. 2009, S. Yamamoto leg. (KUM); 2 unsexed, Mt. Yarabu-dake, Ishigaki-shi (Ishigaki-jima Is.), 14.iv. 2014, S. Yamamoto leg., from chicken carrion baited trap (KUM); 1 unsexed, Mt. Yarabu-dake, Ishigaki-shi (Ishigaki-jima Is.), 16.iv. 2014, S. Yamamoto leg. (KUM); 3 males, 2 females, 20 unsexed, Mt. Yarabu-dake, Ishigaki-shi (Ishigaki-jima Is.), 16.iv. 2014, S. Yamamoto leg., from chicken carrion baited trap (KUM); 3 males, 2 females, 22 unsexed (2 specimens preserved in 99.5 % EtOH for DNA sequencing), Mt. Yarabu-dake, Ishigaki-shi (Ishigaki-jima Is.), 17.iv. 2014, S. Yamamoto leg., from chicken carrion baited trap (KUM); 1 unsexed, Nebaruutaki, near Yoshiwara, Ishigaki-shi (Ishigaki-jima Is.), 4.v. 1998, K. Toyoda leg., from human feces (KUM); 1 unsexed, Ishigaki-jima Is., Ishigaki-shi, 2.viii. 1962, Y. Hama leg. (cYH); 1 unsexed, Ishigaki-jima Is., Ishigaki-shi, 19.viii. 1997, K. Takahashi leg. (KUM); 2 unsexed, Ishigaki-jima Is., Ishigaki-shi, xi. 1998 – xii. 1999, K. Takahashi leg. (KUM); 1 male, 2 females, 6 unsexed (2 specimens preserved in 99.5 % EtOH for DNA sequencing), Kanpireno-taki Fall, Taketomi-chô (Iriomote-jima Is.), 28.iii. 2014, S. Yamamoto leg., from chicken carrion trap (same data as holotype) (KUM); 2 males, 1 female, 25 unsexed, Kanpireno-taki Fall, Taketomi-chô (Iriomote-jima Is.), 29.iii. 2014, S. Yamamoto leg., from chicken carrion trap (completely same place as holotype) (KUM); 2 unsexed, Komi, Taketomi-chô (Iriomote-jima Is.), 13.ii. 1998, M. Kimura leg. (KUM); 1 male, 1 female, 4 unsexed, Komi (Aira-gawa River), Taketomi-chô (Iriomote-jima Is.), 28.iv– 5.v. 1999, S. Hori leg., from flight interception trap (KUM); 3 males, 1 female, 10 unsexed, Komi, Taketomi-chô (Iriomote-jima Is.), 3–5.iv. 2009, S. Yamamoto leg., from flight interception trap (KUM); 3 unsexed, Komi, Taketomi-chô (Iriomote-jima Is.), 20–22.iv. 2014, S. Yamamoto leg., from flight interception trap (KUM); 1 male, 1 female, Komi, Taketomi-chô (Iriomote-jima Is.), 22.iv. 2014, S. Yamamoto leg., from chicken carrion trap (KUM); 1 unsexed, Aira-gawa River, Taketomi-chô (Iriomote-jima Is.), 27–31.iii. 2007, T. Watanabe leg. (cTW); 2 unsexed, Aira-gawa River, Taketomi-chô (Iriomotejima Is.), 27–31.iii. 2007, T. Watanabe leg., from flight interception trap (cTW); 1 unsexed, Ôtomi, Taketomi-chô (Iriomote-jima Is.), 31.iii. 2007, T. Watanabe leg. (cTW). Diagnosis. This new species resembles A. parens including male and female genitalia, but can be discriminated from it as following characters: head with punctation rather dense, deep, and prominent; median lobe of male aedeagus with apical lobe moderately hook-like shaped in lateral view, apical lobe abruptly much thinner, forming sharply pointed apex in parameral view; head of female spermatheca rather truncate at apex, with a long chitinized portion of spermathecal stem, almost 1.5 times as long as spermathecal head and neck combined; endemic to the Yaeyama-shotô Islands (the Ryûkyûs, southwestern Japan) where no specimen of A. parens was found. This species can be discriminated from the sympatric species, A. postica, by densely and evenly punctured head and by male and female genital organs. Description. Measurements (in mm, n = 20): BL = 5.52 (3.08–6.96); HL = 0.82 (0.60–0.93); HW = 0.92 (0.73–1.03); PL = 1.06 (0.79–1.30); PW = 1.46 (1.11–1.81); EL = 0.82 (0.65–1.02); EW = 1.70 (1.13–2.11). Body (Figs 7, 16): fusiform, robust, medium to relatively large in size; dorsal surface weakly glossy and pubescent, without any types of micro-reticulation, moderately punctured. Color (Figs 7, 16): usually uniformly brownish brown to blackish brown, but elytra variable in color pattern, generally pale brown to dark brown uniformly (sometimes infuscate laterally and basally to form somewhat indistinct darken maculations); antennae with antennomeres I–III yellowish brown to dark reddish brown, antennomere IV much darker, antennomeres V– XI slightly darker than those of I–III but covered with minute whitish setae densely; mouth parts and legs yellowish brown to brownish brown; pubescence yellowish brown. Head (Fig. 25): semicircular, as long as width (HW/HL = 1.12, n = 20), widest at posterior part of eyes; setae on vertex rather dense but inconspicuous, directed anteriomedially; punctation medium in size unevenly scattered densely, vertex with lack of punctation at middle but small to very small in size, surrounded by dense punctation. Eyes: medium in length, occupying approximately half length of head, slightly protruding laterally. Antennae (Fig. 42): short, moderately shorter than head and pronotum combined; thick, setose, with antennomere IV clearly transverse, antennomeres V to X strongly transverse in approximately same width each (very slightly but widest at antennomere VI); antennomere XI symmetrical, obtusely rounded at apex; approximate relative length of antennomeres from base to apex: 21 (including base): 8: 9: 4.5: 5: 5: 5: 5: 5: 6: 15. Pronotum (Fig. 7): transversely oval (PW/PL = 1.38, n = 20), strongly narrowing anterad, moderately longer than sutural length of elytra, widest basad, basal margin weakly rounded; pubescence dense, directed laterally and posterolaterally; punctation small and shallow but covered with densely and uniformly. Mesoventrite (Fig. 34): inter coxal process rather narrowly elongate, with rounded apex, completely reaching to inter coxal process of metaventrite. Elytra (Fig. 7): together, transverse (EW/EL = 2.07, n = 20), rather small, slightly smaller than pronotum, widest at middle; fine pubescence scattered densely, diverging posteriorly in each elytron; dorsal surface rough and impressed finely and shallowly; posterolateral corners of each elytron not sinuate. Legs (Fig. 7): simple, short, moderately slender; fore and midtibia, densely covered with undeveloped spines, respectively. Abdomen (Fig. 7): first three visible tergites deeply impressed transversely at base; dorsal and ventral surface moderately covered with long thin setae. Male: tergite VIII (Fig. 86): posterior margin smooth, not serrate at all, weakly but clearly emarginate broadly and medially; dorsal surface covered with setae rather densely, with approximately 10 macrosetae. Sternite VIII (Fig. 88): posterior margin broadly rounded, with a row of minute sensory setae sparsely (see Yamamoto & Maruyama, 2012: 10), and with a complex-cluster of very minute setae just behind the row of minute setae; ventral surface covered with setae densely, with approximately 13 macrosetae. Median lobe of aedeagus (Figs 90–91): [lateral view (Fig. 90)]: robust, gradually narrowing apically; apical lobe sharply pointed, moderately hook-shaped at apex; [parameral view (Fig. 91)]: bulbous, with basal part widely rounded; apical lobe abruptly narrowing strongly near apex, with narrowly and sharply pointed apex; a series of complex sclerites, not reaching to basal 1 / 3 of median lobe. Female: tergite VIII (Fig. 87): posterior margin as in male; dorsal surface covered with setae densely, with approximately 11 macrosetae. Sternite VIII (Fig. 89): posterior margin very weakly rounded broadly or almost truncate; ventral surface covered with setae densely, with approximately 13 macrosetae; no complex-cluster of minute setae situated near posterior margin. Spermatheca (Fig. 92): C-shaped; apical invagination of spermatheca deep and conical in shape; spermathecal head and neck forming elliptical shape together, but with truncate apex; attachment of spermathecal duct relatively conspicuous; basal part of spermathecal stem bent weakly at middle, as long as or slightly longer than spermathecal head and neck combined; chitinized portion of spermathecal stem long, almost 1.5 times as long as spermathecal head and neck combined; each part of spermatheca uniformly and weakly sclerotized; inner wall of spermathecal head and neck rather densely striate, that of basal part not reticulate at all. Distribution. Japan (Ishigaki-jima Is., Iriomote-jima Is.: Yaeyama Islands, the Ryûkyûs). Etymology. Named after the type locality, Yaeyama Islands. Bionomics. SY collected A. yaeyamensis n. sp. from chicken-baited carrion traps set in evergreen broadleaved forests on subtropical Ishigaki Island and adjacent Iriomote Island, Yaeyama Islands, the Ryûkyûs. The habitat of the holotype is shown here (Fig. 120). The detailed lifestyle is still unknown at present, although the population increases from mid-spring to early summer (March to May). Host records. No host record is available. Comments. This new species is seemingly endemic to Ishigaki Island and Iriomote Island (Fig. 126: arrow). Aleochara yaeyamensis n. sp. is abundant in forest environments on both islands, despite the limited species distribution. Further faunistic surveys of adjacent islands are needed to confirm its distribution range.Published as part of Yamamoto, Shûhei & Maruyama, Munetoshi, 2016, Revision of the subgenus Aleochara Gravenhorst of the parasitoid rove beetle genus Aleochara Gravenhorst of Japan (Coleoptera: Staphylinidae: Aleocharinae), pp. 1-68 in Zootaxa 4101 (1) on pages 49-52, DOI: 10.11646/zootaxa.4101.1.1, http://zenodo.org/record/26939
First-principles calculation of defect energetics in cubic-BaTiO3 and a comparison with SrTiO3
No full textThe structural relaxation and formation energies of intrinsic vacancies in cubic-BaTiO3 were studied by using a first-principles planewave-based pseudopotential calculation. The calculated defect formation energies and the atomic relaxations were compared with previously reported data for SrTiO3 [Tanaka T, Matsunaga K, Ikuhara Y, Yamamoto T. Phys Rev B 2003;68:205213]. It was found that the formation energies of the partial Schottky species, V-Ti(2-) + V-O(2+) and V-Ba(2-) + V-O(2+), are the lowest in the oxidized condition. In contrast, as the oxygen chemical potential decreased, namely the reduced condition, the O vacancy becomes dominant in cubic-BaTiO3. Concerning the atomic relaxation, it was found that BaTiO3 and SrTiO3 show a difference in magnitude. It was also found that the overall vacancy formation energy in BaTiO3 is higher than that in SrTiO3. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved
Exciton-polariton condensates near the Dirac point in a triangular lattice
Full text linkDirac particles, massless relativistic entities, obey linear energy dispersions and hold important implications in particle physics. The recent discovery of Dirac fermions in condensed matter systems including graphene and topological insulators has generated a great deal of interest in exploring the relativistic properties associated with Dirac physics in solid-state materials. In addition, there are stimulating research activities to engineer Dirac particles, elucidating their exotic physical properties in a controllable setting. One of the successful platforms is the ultracold atom-optical lattice system, whose dynamics can be manipulated and probed in a clean environment. A microcavity exciton-polariton-lattice system offers the advantage of forming high-orbital condensation in non-equilibrium conditions, which enables one to explore novel quantum orbital order in two dimensions. In this paper, we experimentally construct the band structures near Dirac points, the vertices of the first hexagonal Brillouin zone with exciton-polariton condensates trapped in a triangular lattice. Due to the finite spectral linewidth, the direct map of band structures at Dirac points is elusive; however, we identify the linear part above Dirac points and its associated velocity value is similar to 0.9-2 x 10(8) cm s(-1), consistent with the theoretical estimate 1 x 10(8) cm s(-1) with a 2 mu m lattice constant. We envision that the exciton-polariton condensates in lattices would be a promising solid-state platform, where the system order parameter can be accessed in both real and momentum spaces.Peer reviewe
Exact electron addition spectrum in 1D supersymmetric t-J model with 1/r2 interaction
No full textArikawa, M. ; Yamamoto, T. ; Saiga, Y. ; Kuramoto, Y
- …
