著者
岩淵 義郎 Yoshio Iwabuchi 日本水路協会 Japan Hydrographic Association
雑誌
海の研究 = Umi no Kenkyu (Oceanography in Japan) (ISSN:21863105)
巻号頁・発行日
vol.4, no.6, pp.509-523, 1995-12-30

Topographies of the Japan Sea can be divided roughly into three parts; the continental borderland lying from Hokkaido to San'in Region, the Yamato Ridge and the Korea Plateau of the continental relic, and the deep-sea basin in the northern Japan Sea. The deepest part of the Japan Sea is about 3700m deep located near the eastern margin of the Japan Basin. The age of the Japan Sea is estimated to be younger than 30Ma. The recent topographic features of the Japan Sea have been built mainly by the large-scale deformation and reorganization of topography since late Pliocene. The continental borderland, east of the Toyama Trough, in the northeastern area has very complicated topographies with folding and faulting. In contrast to it, the continental borderland of southwestern area has been comparatively calm in structural activity since late Pliocene. Erosional terraces in late Pliocene to early Pleistocene are reserved around the summit of the Yamato and Oki Ridges and on the basement covered by Quaternary strata forming a marginal terrace. The eastern margin of the Japan Sea is structurally the most active zone, where the lithospheric convergence occurs by the strong compression. The main belt of convergence in the eastern margin of the Japan Sea can be traced by the distribution of epicenters and aftershock areas of great earthquakes of M7 class along the Okusiri Ridge, the Mogami Trough, and the valley of the Sinano River.
著者
脇田 浩二 宮崎 一博 ソパヘルワカン J. ズルカルナイン I. パーキンソン C.D. ムナスリ Koji Wakita Kazuhiro Miyazaki Jan Sopaheluwakan Iskandar Zulkarnain Christopher D. Parkinson Munasri Geological Survey of Japan Geological Survey of Japan Research and Development Centre for Geotechnology Research and Development Centre for Geotechnology Tokyo Institute of Technology Tsukuba University
出版者
日本地質学会
雑誌
地質学論集 = The memoirs of the Geological Society of Japan (ISSN:03858545)
巻号頁・発行日
vol.48, pp.152-162, 1997-06-30
参考文献数
14

東南アジアの古大陸スンダランドの周りには, 様々な年代の付加体やゴンドワナ大陸起源の微小大陸片が集まってきて, 中生代・新生代を通じて次第に大陸成長を続けてきた。インドネシアの中部ジャワ, 南スラウェシ及び南カリマンタン地域において付加体の詳細な調査研究の結果, 白亜紀における海洋プレートの沈み込み, 深海堆積物の付加, 微小大陸片の衝突などが次第に明らかになってきた。これらの三池域の地質は, 構成岩相や地質時代などがお互いに良く類似している。しかし, それぞれの地域が受けた構造運動の違いが, 構成岩石の性質に微妙な違いを与えている。中部ジャワのルクロコンプレックスは, 典型的な付加体で, 白亜紀全体を通じて定常的な海洋プレートの沈み込みと海洋堆積物の付加で特徴づけられている。南カリマンタンのメラトスコンプレックスは, その被覆層とともに収束境界に沿った島弧で形成されたと推定される。一方, 南スラウェシのバンティマラコンプレックスは, 海洋プレートの沈み込みに引き続いて起こった微小大陸片の衝突の歴史を記録している。The Sundaland craton in Southeast Asia is surrounded by a number of accretionary complexes of various ages, and accreted microcontinents which were originally rifted from the Gondwanaland. Continental growth along the southern and eastern margins of the Sundaland resulted from accretion of sediments and collision of continental fragments throughout Mesozoic and Cenozoic times. Cretaceous tectonic processes in the Indonesian region such as subduction, accretion and collision have been revealed by detailed geologic investigation of accretionary complexes in Central Java, South Sulawesi and South Kalimantan. The components of these complexes are similar to each other, but the precise nature of the components differs somewhat. Differences of structure and lithology suggest differing tectonic histories. The Luk-Ulo Complex of Central Java is a typical subduction complex generated by continuous subduction of oceanic plate through out Cretaceous time. The Meratus Complex and its overlying formations in South Kalimantan are also products of oceanic plate subduction in an island arc setting. On the other hand, the Bantimala Complex of South Sulawesi records the effects of oceanic plate subduction followed by collision of a continental fragment.
著者
今田 有美 小野寺 健一 直木 秀夫 安元 健 Imada Yumi Onodera Kenichi Naoki Hideo Yasumoto Takeshi 科学技術振興機構沖縄県地域結集型共同研究事業 Okinawa Prefecture Collaboration of Regional Entities for the Advancement of Technological Excellence Japan Science and Technology Agency
出版者
南方資源利用技術研究会
雑誌
南方資源利用技術研究会誌 = Journal of the society tropical resources technologists (ISSN:09129588)
巻号頁・発行日
vol.22, no.1, pp.13-16, 2006-10-01

沖縄産の水産資源の機能性素材としての利用を目的に、血圧調節機能と深く関わるACE阻害活性を調べた。オキナワモズク、オキナワモズク盤状体、ヒジキ、アナアオサ、クビレズタ、ヒメシャコガイのペプシン分解物について試験をしたところ、いずれにおいてもACE阻害活性が認められた。今回、最も強い活性を示したのは、沖縄での陸上培養が可能なオキナワモズク盤状体であった。これら沖縄産水産資源を、健康機能を有する素材として広く利用していくことが期待される。
著者
Hiroaki Takashima Yukio Ozaki Takeshi Morimoto Takeshi Kimura Takafumi Hiro Katsumi Miyauchi Yoshihisa Nakagawa Masakazu Yamagishi Hiroyuki Daida Tomofumi Mizuno Kenji Asai Yasuo Kuroda Takashi Kosaka Yasushi Kuhara Akiyoshi Kurita Kazuyuki Maeda Tetsuya Amano Masunori Matsuzaki for the JAPAN-ACS Investigators
出版者
日本循環器学会
雑誌
Circulation Journal (ISSN:13469843)
巻号頁・発行日
vol.76, no.12, pp.2840-2847, 2012 (Released:2012-11-22)
参考文献数
32
被引用文献数
4 6

Background: The JAPAN-ACS (Japan Assessment of Pitavastatin and Atorvastatin in Acute Coronary Syndrome) trial showed that intensive statin therapy could induce significant coronary plaque regression in acute coronary syndrome (ACS). We evaluated the impact of metabolic syndrome (MetS) and its components on coronary plaque regression in the JAPAN-ACS patients. Methods and Results: Serial intravascular ultrasound measurements over 8–12 months were performed in 242 ACS patients receiving pitavastatin or atorvastatin. Patients were divided into groups according to the presence of MetS or the number of MetS components. Although the percent change in plaque volume (%PV) was not significantly different between the MetS (n=119) and non-MetS (n=123) groups (P=0.50), it was significantly associated with an increasing number of MetS components (component 0: −24.0%, n=7; components 1: −20.8%, n=31; components 2: −16.1%, n=69; components 3: −18.7%, n=83; components 4: −13.5%, n=52; P=0.037 for trend). The percent change in body mass index (%BMI) significantly correlated with %PV (r=0.15, P=0.021), especially in the MetS components 4 group (r=0.35, P=0.017). In addition, %BMI was an independent predictor of plaque regression after adjustment for the changes of low- and high-density lipoprotein cholesterol, triglycerides and HbA1c. Conclusions: The clustering of MetS components, but not the presence of MetS itself, could attenuate coronary plaque regression during intensive statin therapy in ACS patients. Therefore, to achieve a greater degree of plaque regression, it is necessary to treat to each MetS component and use lifestyle modification.  (Circ J 2012; 76: 2840–2847)
著者
Kazuomi Kario Hisao Ogawa Ken Okumura Takafumi Okura Shigeru Saito Takafumi Ueno Russel Haskin Manuela Negoita Kazuyuki Shimada on behalf of the SYMPLICITY HTN-Japan Investigators
出版者
日本循環器学会
雑誌
Circulation Journal (ISSN:13469843)
巻号頁・発行日
pp.CJ-15-0150, (Released:2015-04-24)
参考文献数
28
被引用文献数
20 75

Background:SYMPLICITY HTN-Japan is a prospective, randomized, controlled trial comparing renal artery denervation (RDN) with standard pharmacotherapy for treatment of resistant hypertension (systolic blood pressure [SBP] ≥160 mmHg on ≥3 anti-hypertensive drugs including a diuretic for ≥6 weeks). When SYMPLICITY HTN-3 failed to meet the primary efficacy endpoint, the HTN-Japan enrollment was discontinued before completion.Methods and Results:The 6-month change in office and 24-h ambulatory SBP were compared between RDN (n=22) and control (n=19) subjects. Mean baseline office SBP was 181.0±18.0 mmHg and 178.7±17.8 mmHg for the RDN and control groups, respectively. The 6-month office SBP change was –16.6±18.5 mmHg for RDN subjects (P<0.001) and –7.9±21.0 mmHg for control subjects (P=0.117); the difference between the 6-month change in RDN and control subjects was –8.64 (95% CI: –21.12 to 3.84, P=0.169). Mean 24-h SBP was 164.7±18.3 (RDN group) and 163.3±17.2 mmHg (control group). The 24-h 6-month SBP change for the RDN group was –7.52±11.98 mmHg (P=0.008) and –1.38±10.2 mmHg (P=0.563) for control subjects; the between-group difference in SBP change was –6.15 (95% CI: –13.23 to 0.94, P=0.087). No major adverse events were reported.Conclusions:SYMPLICITY HTN-Japan, the first randomized controlled trial of RDN in an Asian population, was underpowered for the primary endpoint analysis and did not demonstrate a significant difference in 6-month BP change between RDN and control subjects.