トクシマケンサン コッカイ ギジドウ ダイリセキ ノ ケンキュウ 3 シュウサン リョウイン ニオケル セキザイ シヨウ ノ ヒカク

Marbles from Tokushima Prefecture that decorate the National Diet Building of Japan (Nagata-cho, Tokyo) were compared directly for the first time about the use of the seven brands in the House of Representatives and the House of Councilors. The seven brands, “Akebono”, “Kito-ishi”, “Hototogisu”, “Kamo-sarasa”, “Awayuki”, “Kotajima” and “Shin-awayuki” were verified that they were used symmetrically in both the House of Representatives and the House of Councilors including the central part of the building. The “Akebono”, Silurian limestone of the Kurosegawa Tectonic Zone from Koyamadaira (Sakashu, Naka-cho), is used on the wall of the Diet members’ Second Stairway. The “Kito-ishi”, limestone breccia intercalated in Late Carboniferous chert facies from Misago-Yama (Sakashu, Naka-cho), is used for the fireplaces in the reception rooms of the Vice-presidents. The “Hototogisu”, Late Triassic dolimitic limestone in the earliest Cretaceous accretion mélange from Arida (Asebi-cho, Anan City) of the South Chichibu Belt (Tsunomine Subbelt), is used for the well-ornamented entrance frame of the Emperor’s room “Gokyujo”. The “Kamo-sarasa”, latest Triassic intramicrite from Oji (Kuwano-cho, Anan) of the Tsunomine Subbelt, is used on the wall inside the central entrance of the building, and door frames of rooms in both houses. The “Awayuki”, Late Triassic gray limestone with Megalodon and dark blocks of hexa-corals from Kurogo (Kamo-cho, Anan City) in Tsunomine Subbelt, is used for the base of the wall along the square in front of the Emperor’s room, and the base of pillars around the central hall, as well as the lower part of the wall around the assembly hall of both houses. The “Kotajima”, black cleavaged Norian limestone from Higashibun (Tsunomine-cho, Anan City) in the Early Cretaceous olistostrome of the Tsunomine Subbelt, is used on the lower part of the wall along the passage of the third floor in both houses, and walls of the “Kisha Kaidan” stairways to both galleries. The “Shin-awayuki”, Late Carboniferous limestone from the Izeki (Takarada-cho, Anan City) in Jurassic accretionary mélange of the South Chichibu Belt (Hosono Subbelt), is used for the mosaic on the floor of the Central Hall

The Mikabu and Chichibu belts in the Iya-gawa area, Tokushima Prefecture, Shikoku, SW Japan : An integrated research of geology and geomorphology

The Mikabu and Chichibu belts in the Iya-gawa area are studied with respect to their composition, boundaries and the relation with landslides. The Kyobashira-Sugeoi Fault bound the Mikabu Greenstone Belt from the Sambagawa Belt. The Kubo Greenstone body, a part of the Mikabu Greenstone, distributes as an axial part of antiform in the southern margin of the Sambagawa Belt. The Mikabu Greenstone of the area is composed of tholeiitic and alkaline rocks. The Mikabu Greenstone thrust to the south with the Okoyatoko-Nagoro Fault upon the Jurassic accretionary complex of the North Chichibu Belt. Even the phillite generally dipping towards the north in the northern part of the North Chichibu Belt, the oceanic-plate successions of chert-mudstone sequences are stratigraphically upper towards the south. The radiolarian age, estimated at the lithological transition from chert to mudstone in the oceanic-plate sequences, is Early Jurassic. The landslides concentrate in the areas of the Mikabu Greenstone and valley walls along the Iya-gawa River. The linear depressions and ponds, arrange on the mountain ridge between the Miune and Tengu-Zuka along the southern border of the Mikabu Greenstone, are regarded as a sign of large-scale collapse by long-period gravitational mass rock deformation of the mountain body. The weathered zone of the Mikabu Greenstone often includes swelling clay that causes landslides in the area

南部黒瀬川帯寒谷層と坂州不整合

The Sakashu Unconformity, a representative unconformity between Late Permian accretionary comprex and Late Triassic shallow-marine sediments in the South Kurosegawa Terrane, has investigated in stratigraphy, sedimentary facies, allochthonous and autochthonous faunas with the view point of post-accretional environmental changes. The accretion mélange of the Hisone Group, basement of the unconformity, yields Late Permian radiolarians. The lower member of the Upper Triassic Sabudani Formation is associated with two types of debris flows. One contains blocks of pelagic chert, carbonates, and greestones. The other is composed of mylonitized granitic breccias and fragments. The latter probably derived from the Mitaki Granites (400+ Ma) of the Kurosegawa Tectonic Zone that form the substratum of the Silurian limestone. The basal middle member of the Sabudani Formation contains huge blocks of weathered limestone/chert that yields late Early Permian conodont fauna (M. bisseli - S. whitei Zone). The hummocky cross-stratification in the middle member of the Sabudani Formation indicates a lower off-shore facies. Existence of the Permian conodont-bearing huge eroded limestone/chert blocks, and early Late Permian radiolarians in chert pebbles of the hummocky cross-stratified lag sediments suggests probable derivation of the conglomerates from the blocks in the Permian accretionary complexes. The Triassic mollusk fauna of the middle and upper members of the Sabudani Formation is correlative with the Carnian (-Norian) Kochigatani bivalve-fauna in the clastic facies of the Kurosegawa Terrane (Outer Zone of SW Japan) as well as with the Mine and Nabae groups, Primorye, Zabaikal and NE Siberia. From a paleobiogeographic point of view, the bivalve-fauna of the clastic sand- and marlstone Kochigatani facies is regarded to differ from that of the carbonate Tethyan facies in the South Chichibu Jurassic Accretionary Terrane

Marbles from Tokushima Prefecture, used in the National Diet Building : Part 1: locality and geological framework

The quarries of marbles for the construction of the National Diet Building (Nagata-cho, Chiyodaku, Tokyo) were identified in Tokushima Prefecture. The geological setting and microfossil age of the marbles were studied. Seven brands, "Akebono", "Kito-ishi ", "Hototogisu", "Kamo-sarasa", "Awayuki ", "Kotajima" and "Shin-awayuki" were used in the House of Councilors and the Central part of the building. The "Akebono", used for the wall along the Councilor's Second Stairway, is Silurian limestone from the Hiakari-yama lenticular body of the Kurosegawa Tectonic Zone in the Koyama-daira area (Kisawa Village). The "Kito-ishi" from the Misago-yama area (Kisawa Village), used for the fireplace in the reception room of the Vice-president of the House of Councilors, is the limestone and greenstone breccia intercalated in the Upper Carboniferous alternation of chert and pelagic limestone in the Permian accretion terrene (Masaki Belt of the Kurosegawa Terrane). The "Hototogisu", used for the well-ornamented entrance gate of the Emperor's room "Gokyujo", is the Upper Triassic dolimitic limestone in the Late Jurassic-earliest Cretaceous accretion mélange of the South Chichibu Terrane (Tsunomine Subbelt) from the Arida area (Asebi-cho, Anan City). The "Kamo-sarasa", used for the inside wall of the central entrance of the building, is the Upper Triassic limestone with some green reticulation in Late Jurassic-earliest Cretaceous accretion mélange of the South Chichibu Terrane (Tsunomine Subbelt) from the Oji area (Kuwano-cho, Anan City). The "Awayuki", used for the lower part of the wall along the square in front of the Emperor's room, and the lower part of the wall around the assembly hall of the House of Councilors, presumed to be a kind of "Kamo-sarasa", is proved to be the Upper Triassic Megalodon limestone with hexacoral-bearing dark limestone blocks in the accretion mélange of the South Chichibu Terrane (Tsunomine Subbelt) from the Kurogo area (Kamo-cho, Anan City). The "Kotajima", used for the lower part of the wall along the passage of the second floor, and the wall along the "Kisha Kaidan" stairway, is proved to be the Upper Triassic limestone with reticulation of black cleavages in Late Jurassic-earliest Cretaceous accretion mélange of the South Chichibu Terrane (Tsunomine Subbelt) from the Higashibun area (Tsunomine-cho, Anan City). The "Shin-awayuki", used for the mosaic on the floor of the Central Hall and the lower part of the wall along the passage of the southern central part of the first floor, is the Upper Carboniferous limestone in Jurassic accretion mélange of the South Chichibu Belt (Hosono Subbelt) from the Izeki area (Takarada-cho, Anan City)

マウスにおいて短期間の食餌性リン制限は回腸fibroblast growth factor 15遺伝子発現量を増加させる

Members of the fibroblast growth factor (FGF) 19 subfamily, including FGF23, FGF15/19, and FGF21, have a role as endocrine factors which influence the metabolism of inorganic phosphate (Pi) and vitamin D, bile acid, and energy. It has been reported that dietary Pi regulates circulating FGF23. In this study, the short-term effects of dietary Pi restriction on the expression of FGF19 subfamily members in mice were analyzed. An initial analysis confirmed plasma FGF23 levels positively correlated with the amount of dietary Pi. On the other hand, ileal Fgf15 gene expression, but not hepatic Fgf21 gene expression, was up-regulated by dietary Pi restriction. In addition, we observed the increase of plasma 1,25-dihydroxyvitamin D [1,25(OH)2D] levels by dietary Pi restriction, and the up-regulation of ileal Fgf15 mRNA expression by 1,25(OH)2D3 and vitamin D receptor (VDR). Importantly, dietary Pi restriction-induced Fgf15 gene expression was prevented in VDR-knockout mice. Furthermore, diurnal variations of plasma triglyceride concentrations and hepatic mRNA expression of the bile acid synthesis enzyme Cyp7a1 as one of Fgf15 negative target genes was influenced by dietary Pi restriction. These results suggest that dietary Pi restriction up-regulates ileal Fgf15 gene expression through 1,25(OH)2D3 and VDR, and may affect hepatic bile acid homeostasis

Coincidence analysis to search for inspiraling compact binaries using TAMA300 and LISM data

Japanese laser interferometric gravitational wave detectors, TAMA300 and LISM, performed a coincident observation during 2001. We perform a coincidence analysis to search for inspiraling compact binaries. The length of data used for the coincidence analysis is 275 hours when both TAMA300 and LISM detectors are operated simultaneously. TAMA300 and LISM data are analyzed by matched filtering, and candidates for gravitational wave events are obtained. If there is a true gravitational wave signal, it should appear in both data of detectors with consistent waveforms characterized by masses of stars, amplitude of the signal, the coalescence time and so on. We introduce a set of coincidence conditions of the parameters, and search for coincident events. This procedure reduces the number of fake events considerably, by a factor $\sim 10^{-4}$ compared with the number of fake events in single detector analysis. We find that the number of events after imposing the coincidence conditions is consistent with the number of accidental coincidences produced purely by noise. We thus find no evidence of gravitational wave signals. We obtain an upper limit of 0.046 /hours (CL $= 90$) to the Galactic event rate within 1kpc from the Earth. The method used in this paper can be applied straightforwardly to the case of coincidence observations with more than two detectors with arbitrary arm directions.Comment: 28 pages, 17 figures, Replaced with the version to be published in Physical Review

Results of the search for inspiraling compact star binaries from TAMA300's observation in 2000-2004

We analyze the data of TAMA300 detector to search for gravitational waves from inspiraling compact star binaries with masses of the component stars in the range 1-3Msolar. In this analysis, 2705 hours of data, taken during the years 2000-2004, are used for the event search. We combine the results of different observation runs, and obtained a single upper limit on the rate of the coalescence of compact binaries in our Galaxy of 20 per year at a 90% confidence level. In this upper limit, the effect of various systematic errors such like the uncertainty of the background estimation and the calibration of the detector's sensitivity are included.Comment: 8 pages, 4 Postscript figures, uses revtex4.sty The author list was correcte

The Japanese space gravitational wave antenna; DECIGO

DECi-hertz Interferometer Gravitational wave Observatory (DECIGO) is the future Japanese space gravitational wave antenna. DECIGO is expected to open a new window of observation for gravitational wave astronomy especially between 0.1 Hz and 10 Hz, revealing various mysteries of the universe such as dark energy, formation mechanism of supermassive black holes, and inflation of the universe. The pre-conceptual design of DECIGO consists of three drag-free spacecraft, whose relative displacements are measured by a differential Fabry– Perot Michelson interferometer. We plan to launch two missions, DECIGO pathfinder and pre- DECIGO first and finally DECIGO in 2024

DECIGO pathfinder

DECIGO pathfinder (DPF) is a milestone satellite mission for DECIGO (DECi-hertz Interferometer Gravitational wave Observatory) which is a future space gravitational wave antenna. DECIGO is expected to provide us fruitful insights into the universe, in particular about dark energy, a formation mechanism of supermassive black holes, and the inflation of the universe. Since DECIGO will be an extremely large mission which will formed by three drag-free spacecraft with 1000m separation, it is significant to gain the technical feasibility of DECIGO before its planned launch in 2024. Thus, we are planning to launch two milestone missions: DPF and pre-DECIGO. The conceptual design and current status of the first milestone mission, DPF, are reviewed in this article