370 research outputs found
Surface plasmon resonance biosensing of the monomer and the linked dimer of the variants of protein G under mass transport limitation
No full textAbstractThis article presented the data related to the research article entitled “Calibration-free concentration analysis for an analyte prone to self-association” (H. Imamura, S. Honda, 2017) [1]. The data included surface plasmon resonance (SPR) responses of the variants of protein G with different masses under mass transport limitation. The friction factors of the proteins analyzed by an ultracentrifugation were recorded. Calculation of the SPR response of the proteins was also described
Different growth and metastatic phenotypes associated with a cell-intrinsic change of Met in metastatic melanoma
No full text金沢大学博士（医学）博士論文要旨Abstract 以下に掲載：Oncotarget 7(43) pp.70779-70793 2016. Impact Journals. 共著者：Eri Adachi, Katsuya Sakai, Takumi Nishiuchi, Ryu Imamura, Hiroki Sato, Kunio Matsumotothesi
A cyclic peptide-grafted Fc with hepatocyte growth factor functionality ameliorates hepatic fibrosis in a nonalcoholic steatohepatitis mouse model
No full text金沢大学博士(医学)博士論文 要旨Abstract/本文Full 以下に掲載：Preventive Medicine ResearchiScience 27(8) pp.110426- 2024. Cell Press. 共著者：Nichole Marcela Rojas-Chaverra, Ryu Imamura, Hiroki Sato, Toby Passioura, Emiko Mihara, Tatsunori Nishimura, Junichi Takagi, Hiroaki Suga, Kunio Matsumoto, Katsuya Sakaidoctoral thesi
Are inundation limit and maximum extent of sand useful for differentiating tsunamis and storms?: An example from sediment transport simulations on the Sendai Plain, Japan
No full textWe examined the quantitative difference in the distribution of tsunami and storm deposits based on numerical simulations of inundation and sediment transport due to tsunami and storm events on the Sendai Plain, Japan. The calculated distance from the shoreline inundated by the 2011 Tohoku-oki tsunami was smaller than that inundated by storm surges from hypothetical typhoon events. Previous studies have assumed that deposits observed farther inland than the possible inundation limit of storm waves and storm surge were tsunami deposits. However, confirming only the extent of inundation is insufficient to distinguish tsunami and storm deposits, because the inundation limit of storm surges may be farther inland than that of tsunamis in the case of gently sloping coastal topography such as on the Sendai Plain. In other locations, where coastal topography is steep, the maximum inland inundation extent of storm surges may be only several hundred meters, so marine-sourced deposits that are distributed several km inland can be identified as tsunami deposits by default. Over both gentle and steep slopes, another difference between tsunami and storm deposits is the total volume deposited, as flow speed over land during a tsunami is faster than during a storm surge. Therefore, the total deposit volume could also be a useful proxy to differentiate tsunami and storm deposits.Hydraulic Structures and Flood Ris
Factors responsible for the limited inland extent of sand deposits on Leyte Island during 2013 Typhoon Haiyan
No full textPrevious geological studies suggest that the maximum inland extent of storm-induced sand deposits is shorter, but their thickness is larger, than those of tsunami-induced sand deposits. However, factors that determine the maximum extent and thickness of storm deposits are still uncertain. We conducted numerical simulations of storm surge, waves, and sediment transport during Typhoon Haiyan in order to understand the distribution and sedimentary processes responsible for storm deposits. Numerical results showed that wave-induced currents slightly offshore were strong, but attenuated rapidly in the inland direction after wave breaking. Therefore, sediments were not transported far inland by waves and storm surge. Consequently, the maximum inland extent of storm deposits was remarkably shorter than the inland extent of inundation. We also revealed that vegetation (roughness coefficient) and typhoon intensity greatly affect the calculation of maximum extent and thickness distribution of storm deposits. As the duration of wave impact on a coast is relatively long during a storm (hours, compared to minutes for a tsunami), sediments are repeatedly supplied by multiple waves. Therefore, storm deposits tend to be thicker than tsunami deposits, and multiple layers can form in the internal sedimentary structure of the deposits. We infer that limitation of the sand deposit to within only a short distance inland from the shoreline and multiple layers found in a deposit can be used as appropriate identification proxies for storm deposits
Platycephalus endrachtensis Quoy and Gaimard 1825
No full textPlatycephalus endrachtensis Quoy and Gaimard, 1825 Common English name: Northern sand flathead (Figs. 28–29; Table 11) Platycephalus endrachtensis Quoy & Gaimard, 1825: 353 (type locality: Shark Bay, WA, Australia); Cuvier in Cuvier & Valenciennes, 1829: 240; Imamura, 2008: 405, figs. 1 b, 2 –3, 6b. Platycephalus arenarius Ramsay & Ogilby, 1886: 577 (type locality: Middle Harbor, Port Jackson, NSW, Australia); McCulloch, 1929: 401; Gloerfelt-Tarp & Kailola, 1984: 113, unnumbered fig.; Hutchins & Swainston, 1986: 127, fig. 202; Allen & Swainston, 1988: 52, fig. 277; Paxton & Hanley, 1989: 467; Knapp, 1991: 29, tab. 3; Kuiter, 1993: 102, unnumbered fig.; Allen, 1997: 80, pl. 21 - 16; Knapp, 1999: 2407, unnumbered fig.; Grant, 2004: 194, pl. 88; Hoese et al., 2006: 939; Imamura, 2006: 304, tab. 1. Trudis arenarius: Whitley, 1964: 57. Material examined. Lectotype: MNHN 6865, 175 mm SL (snout damaged, measured by Blanc & Hureau, 1968), Shark Bay, WA, Australia, designated by Imamura (2008). Paralectotype: MNHN 2007 -0128 (ex. MNHN 6865), 153 mm SL (snout damaged, measured by Blanc & Hureau, 1968), collected with lectotype. Other specimens (21 specimens, 97.2–330 mm SL, from): 12 specimens, including AMS B. 7136, holotype of Platycephalus arenarius Ramsay & Ogilby, 1886, were listed in Imamura (2008); 8 additional specimens: AMS E.1581, 1 of 6 specimens, 286 mm SL, 35 km SE of Double Island Point, Qld (about 26 ° 10 ’S, 153 ° 20 ’E), 29 June 1910; CSIRO 5974-14, 330 mm SL, Jimbaran Bay, Bali, Indonesia (08° 45 ’S, 115 ° 10 ’E), from Kedonganan fish market, 5 Oct. 2002; CSIRO A 1424, 113.9 mm SL, Port Gregory, WA (28 ° 12 ’S, 114 ° 15 ’E), 25 Aug. 1945; CSIRO CA 2964, 259 mm SL, off Port Headland, WA (20 ° 14 ’S, 117 ° 45 ’E), 27.0 m depth, 22 Aug. 1982; NMV A22147, 1 of 2 specimens, 120 mm SL, 2 km E of St. Helens, Tas (41 ° 16 ’S, 148 ° 22 ’E), 13 Nov. 1969; NTM S. 10733 -044, 302 mm SL, Jimbaran fish market, Bali, Indonesia (08° 46 ’S, 115 ° 10 ’E), 1981; WAM P. 32381 -009, 177 mm SL, Cape Peron North, WA (25 ° 30.484 ’0”S, 113 ° 33.688 ’0”E), 25 Feb. 2003; WAM P. 32429 -004, 170 mm SL, Cape Bellefin, WA (25 ° 49.939 ’S, 113 ° 14.274 ’E), 1 Mar. 2003. Diagnosis. A species of Platycephalus with the following combination of characters: first dorsal fin with a single small isolated spine anteriorly; second dorsal- and anal-fin rays usually 13; interorbital width 7.7 –12.0% HL; postorbital length 50.7–56.9 % HL; snout, area anteroventral to the eye, interorbit and occipital region scaled; upper iris lappet simple, triangular; a finger-like interopercular flap present; upper jaw without large caniniform teeth; teeth absent on dorsal surface of anterolateral edge of upper jaw; palatine teeth arranged in two rows; usually four or more dark longitudinal bands on caudal fin. Description. Counts and measurements shown in Table 11. Data for all specimens presented first, followed by lectotype condition in parentheses. Lectotype Paralectotype Holotype of P. arenarius Non-types MNHN 6865 MNHN 2007 -0128 AMS B. 7136 n = 20 SL (mm) 175 * 153 * 239 97.2–330 Counts: Snout, area anteroventral to eye, interorbit and occipital region scaled; lower half of suborbital region naked. Interorbit narrower than orbital diameter. Upper iris lappet simple, triangular; lower simple, weakly convex. Nasal and preorbital spines absent. One suborbital spine present below posterior margin of eye in 177 mm SL or smaller specimens (including lectotype), absent in larger specimens. Lower preopercular spine slightly longer than upper, not reaching opercular margin. Supplemental preopercular spine usually present in 207 mm SL or smaller specimens, absent in larger specimens (absent in lectotype). Finger-like interopercular flap present; margin of interopercle smooth. Maxilla reaching from near anterior margin of pupil to middle of eye (upper jaw damaged in lectotype). Upper jaw with moderate or large conical, or small caniniform teeth anteromedially. Palatine teeth in two rows, villiform in outer row, moderate conical in inner. Vomerine teeth sparsely arranged in one or two rows (vomer damaged in lectotype); number of teeth tending to increase with growth. Fleshy sensory tubes from suborbitals and preopercle not covering cheek region. Posterior tip of pelvic fin reaching from just anterior to origin of anal fin, to base of third anal-fin ray (not examined in lectotype). Posterior margin of caudal fin mostly straight, or slightly rounded (slightly rounded). Color in alcohol. Color of lectotype mostly faded, retaining melanophores only on area between ninth and last anal-fin rays, and four brownish bands on caudal fin (Fig. 29 A). In other specimens (Fig. 28), ground color of head and body pale to dark brown above, paler below. Dorsal surface of head and body with small dark spots. Side of body with or without gray or brown band. First and second dorsal, pectoral and pelvic fins with small pale to dark brown spots. Anal fin with melanophores along rays; area with melanophores tending to become broader with growth, from the 10 th to last rays in smallest (97.2 mm SL) specimen, and from second to last rays in largest (330 mm SL) specimen. Caudal fin with three to six (usually four or more; three in faded specimens) dark brown or black longitudinal bands. Distribution. Known from Australia, from Cliff Point, Qld (ca. 22 ° 32 ’S) to St. Helens, Tas (41 ° 16 ’S), and from Hamelin Bay, WA (ca. 34 ° 10 ’S) to Port Hedland (20 °0’S) and Bali, Indonesia, in estuaries and coastal bays on clean sand in depths from 1–60 m (e.g., Hutchins & Swainston, 1986; Kuiter, 1993; Knapp, 1999; Hoese et al., 2006; Imamura, 2008; this study). Size. Maximum length 45 cm (e.g., Hutchins & Swainston, 1986; Kuiter, 1993). The largest specimen examined during the present study was 330 mm SL (362 mm TL) (Fig. 28). Remarks. The name Platycephalus endrachtensis had been mistakenly referred to a species having a yellow blotch on the upper portion of the caudal fin when fresh by many authors (e.g., Taylor, 1964; Gloerfelt-Tarp & Kailola, 1984; Sainsbury et al. 1985; Hutchins & Swainston 1986; Knapp, 1999) until Imamura (2008) revealed it to be a senior synonym of P. arenarius Ramsay & Ogilby, 1886 (Fig. 29 B), P. westraliae being the species with a yellow blotch [see Imamura (2008) for a detailed discussion]. Platycephalus endrachtensis most resembles P. angustus, P. australis, P. cultellatus and P. indi cus, P. westraliae, and Platycephalus sp. 1 and sp. 2 (sensu Nakabo, 2002) in having usually 13 second dorsal- and analfin rays, the snout, area anteroventral to the eye, interorbit, and occipital region scaled, large caniniform teeth absent on the upper jaw, a finger-like interopercular flap, palatine teeth arranged in two rows and the caudal fin with dark brown or black longitudinal bands It can be distinguished from P. angustus, P. cultellatus, and Platycephalus sp. 1 and sp. 2 in having the first dorsal fin with a single small isolated spine anteriorly (usually two in the latter four species), and also from P. angustus in lacking teeth on the dorsal surface of the upper jaw (present in P. angustus specimens ca. 76 mm SL or larger) and having vomerine teeth in one or two rows (vs. number of vomerine tooth rows tending to increase with growth, from two to four rows in 106–184 mm SL specimens, respectively, and forming a single broad band of teeth in larger specimens). Platycephalus endrachtensis is also separable from P. westraliae in having a simple triangular upper iris lappet (usually broad and bilobed in P. westraliae) and by lacking a yellow blotch on the caudal fin when fresh (yellow blotch present on upper portion of caudal fin in P. westraliae). Platycephalus endrachtensis differs from the above eight species in having a narrower interorbit and shorter postorbital region (interorbital width 7.7 –12.0% HL and postorbital length 50.7–56.9 % HL in P. endrachtensis vs. 7.3–17.3 % HL and 55.5–67.8 % HL in P. angustus, 6.5–18.1 % HL and 51.6–63.6 % HL in P. australis, 6.5 –19.0% HL and 51.8–66.8 % HL in P. cultellatus, 7.2–18.4 % HL and 51.4–61.6 % HL in P. i n di cu s, 6.3 –17.0% HL and 51.2–60.9 % HL in P. westraliae, 8.2–17.2 % HL and 53.9–61.7 % HL in Platycephalus sp. 1, and 9.2–17.9 % HL and 54.4–63.5 % HL in Platycephalus sp. 2) (Fig. 19). The generally greater number (usually four or more vs. two or three, respectively) of longitudinal bands on the caudal fin may also help to differentiate P. endrachtensis from the other species (except P. australis, P. cultellatus, and Platycephalus sp. 1 and sp. 2). Knapp (1999) stated that P. endrachtensis (as P. arenarius) was distributed around northern Australia from Jervis Bay, NSW to Hamelin Bay, WA. However, there have been no specimens collected from the area between Cliff Point, Qld (ca. 22 ° 32 ’S) and Port Hedland, WA (20 °0’S) deposited in the major Australian ichthyological collections (i.e., AMS, CSIRO, NMV, NTM, QM and WAM) visited by the present author. Pending the collection of voucher specimens, the above area is omitted from the distribution of P. endrachtensis.Published as part of Imamura, Hisashi, 2015, Taxonomic revision of the flathead fish genus Platycephalus Bloch, 1785 (Teleostei: Platycephalidae) from Australia, with description of a new species, pp. 151-207 in Zootaxa 3904 (2) on pages 190-193, DOI: 10.11646/zootaxa.3904.2.1, http://zenodo.org/record/23355
Ryu and Ujisyuimonogatari, and Akutagawa's Inner Concept of "Ryu"
No full text14KJ00002356838論文Articledepartmental bulletin pape
Reexamination of the Brachiopod Fauna from the Permian Karita Formation, Southwest Japan
No full textPermian brachiopods from the Karita Formation in the Inner Zone of Southwest Japan, first introduced and discussed by the junior author IMAMURA (1953), are herein reexamined and systematically described. Several new materials of brachiopods, collected and briefly examined by KAWAI (HASE and AIBA, 1977), have been added for the study. The brachiopod fauna is composed of 10 species among 9 genera. Two indeterminable genera belonging to Strophalosiidae are also discriminated. The faunal elements are closely comparable with those of the Upper Permian Takauchi Limestone of the Permian Maizuru Group, Southwest Japan (SHIMIZU, 1961) and are also closely related to those of the Upper Permian Lontangian fauna (LIAO, 1980) of South China
Functional Analyses of PYNOD(NLPR10) in Mice
No full textThe 3rd International Symposium on Carcinogenic Spiral & International Symposium on Tumor Biology in Kanazawa, [DATE]: January 24(Thu)-25(Fri),2013, [Place]:Kanazawa Excel Hotel Tpkyu, Kanazawa, Japan, [Organizers]:Infection/Inflammation-Assisted Acceleration of the Carcinogenic Spiral and its Alteration through Vector Conversion of the Host Response to Tumors / Scientific Research on Innovative Areas, a MEXT Grant-in Aid Projec
Giant light deflection via electro-mechanical modulation of liquid crystals
No full textThis article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Koki Imamura, Hiroyuki Yoshida, and Masanori Ozaki, Appl. Phys. Lett. 114, 061901 (2019) and may be found at https://doi.org/10.1063/1.5083980Liquid crystals (LCs) are matter with fluidity and anisotropy and have been used in various electro-optic devices for their capabilityto modulate the refractive index by voltage. Here, we show that LCs are capable of electro-mechanically modulating light tocause giant light deflection at low voltages (exceeding 64° at 1.0 V). We use a composite material where polymerized cholestericLC particles that show optical Bragg reflection float in a nematic LC medium. The polymer-particles are elastically coupled withthe host director through their surface molecular anchoring and rotate from a face-on to side-on configuration at the Frederiktransition. Rigid-body rotation of the reflection plane causes light deflection, which is well reproducible and can be modelled theoretically.Our findings demonstrate the capability of LCs as a micro-electrical-mechanical system platform, which are potentiallyuseful for large-area light-controlling applications. This study was supported by a Grant-in-Aid for JSPS Fellows (18J10027), JSPS KAKENHI (17H02766), and JST PRESTO (JPMJPR151D). The authors thank Merck Performance Materials for providing the chiral dopant
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