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柴达木北缘超高压变质带中的岛弧火山岩

地质学报 2004年第1期78卷 52-64页

作者：史仁灯杨经绥吴才来 Tsuyoshi IIZUKA takafumi HIRATA 中国地质科学院地质研究所大陆动力学实验室北京100037 东京工业大学地球与行星科学系

青藏高原北部柴北缘发育一套与超高压变质带并行的早古生代岛弧火山岩带,岛弧火山岩以玄武岩类为主,包括一些中酸性岩类,岩石以普遍遭受绿片岩相蚀变为特征,区别于该地区普遍遭受角闪岩相区域变质的元古代的基性火山岩。该早古生代的岛... 详细信息

青藏高原北部柴北缘发育一套与超高压变质带并行的早古生代岛弧火山岩带,岛弧火山岩以玄武岩类为主,包括一些中酸性岩类,岩石以普遍遭受绿片岩相蚀变为特征,区别于该地区普遍遭受角闪岩相区域变质的元古代的基性火山岩。该早古生代的岛孤火山岩显示三组地球化学特征:①VTG-Ⅰ,岛弧拉斑玄武岩(IAT);②VTG-Ⅱ,高Al次钙碱性-碱性过渡型玄武岩;③VTG-Ⅲ,较N-MORB更亏损的拉斑玄武岩(异常MORB)。研究认为前两组火山岩是成熟岛弧两个发育阶段的特征性产物:洋壳俯冲到陆壳的初用,由俯冲洋壳和地幔楔的部分熔融形成岛弧拉斑玄武岩(IAT),随着俯冲板块的速度加快和岛弧周围地壳的加厚,则形成钙碱性玄武岩(CA)、高Al玄武岩。第三组火山岩形成于弧间盆地,由亏损的地幔楔高度部分熔融形成比N-MORB亏损的的火山岩(异常MORB)。岛弧火山岩的锆石LA-ICP-MS法U-Pb年龄为514.2±8.5 Ma,说明柴北缘在早古生代发生过洋壳向陆壳的俯冲作用。鉴于该地区代表陆-陆俯冲作用的柴北缘超高压变质岩石也是形成于早古生代(494Ma),认为陆-陆俯冲作用发生在洋-陆俯冲作用之后,二者时间和空间相伴随。

关键词：岛弧火山岩玄武岩中酸性岩基性火山岩地球化学

Biomarkers and Environmental Toxicology

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中国药理学与毒理学杂志 2006年第3期 169-172页

作者： Xin-Biao Guo Byung-Mu Lee Seok Kwon Danai Tiwawech Petcharin Sriatanakul Anant Karalak takafumi Ishida Ikuo Horii

S3-1 Nutrient-gene interactions in chronic arsenic poisoning GUO Xin-Biao(Department of Occupational and Environmental Health Sciences,School of Public Health, Peking University,Beijing 100083, ChinaArsenic exposure has been associated with the development of skin lesions such as hyperpigmentation, hypopigmentation and hyperkeratosis, which may be harbingers of increased risk for cancers of the skin, bladder, lung and other organs. The primary metabolic pathway of ingested inorganic arsenic in humans is methylation. In human, however, there is considerable inter-individual variability in the proportions of different methylated arsenic metabolites such as monomethylarsonic acid (MMA) and dimethylarsinic acid (DMA) in urine. I

关键词： LMP Biomarkers and Environmental Toxicology gene

Organogermanium (Ge-132) Suppresses Activities of Stress Enzymes Responsible for Active Oxygen Species in Monkey Liver Preparation

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Advances in Enzyme Research 2017年第2期5卷 13-23页

作者： takafumi Tezuka Atsunori Higashino Mitsuo Akiba Takashi Nakamura Graduate School of Information Science Nagoya University Nagoya Japan Asai Germanium Research Institute Co. Ltd. Hakodate Japan

Assays of stress enzymes related to active oxygen species were performed by using an in vitro preparation from the liver of a monkey (Japanese Macaque). Ge-132, an organic germanium compound, viz. poly-trans-[(2-carboxyethyl) germasesquioxane] [(GeCH2CH2COOH)2O3]n, suppressed the activities of NADH-dependent oxidase and NADPH-dependent oxidase [NAD(P)H-OD] and xanthine oxidase (XOD) as superoxide-forming enzymes, while promoting the activities of superoxide dismutase (SOD) as a superoxide-scavenging enzyme and catalase (CAT) as an enzyme responsible for degradation of hydrogen peroxide (H2O2). The evidence suggests that the levels of active oxygen species such as and H2O2 would be reduced by Ge-132. The possible connection between Ge-132 and activities of stress enzymes is discussed on the basis of these results.

关键词： Active Oxygen Species Stress Enzymes [CAT NAD(P)H-OD SOD XOD] Ge-132 [(GeCH2CH2COOH)2O3]n Monkey Liver

An investigation using high-precision CCD laser displacement sensor to measure body surface motion induced by heartbeat

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Journal of Biomedical Science and Engineering 2012年第11期5卷 672-677页

作者： Satoshi Suzuki Takemi Matsui takafumi Asao Kentaro Kotani Department of Management Systems Engineering Faculty of System Design Tokyo Metropolitan University Tokyo Japan Department of Mechanical Engineering Faculty of Engineering Science Kansai University Osaka Japan

The aim of this study was to measure the motion of the body surface induced by heartbeat by using a high-precision laser sensor in order to provide a reference for other research on medical remote sensing techniques that are unconstrained and non-contact. Body surface motions at some points on the chest and on the dorsal region were measured for eight men with a laser displacement sensor. For comparison, an electrocardiograph was also used to monitor the heartbeat. As a result, we confirmed cyclic motion of about 0.1 mm in amplitude everywhere on the body surface, not only from the front of the body but also from the back and the neck. In contrast, which part on the body was most suitable for measurement had to be taken into account because a difference in motion amplitudes was observed in different parts on the body. The amplitude of the motions also depended on the conditions of the body surface as well as underneath the skin. These results show the possibility of acquiring information about heartbeats from anywhere on the body by using an unconscious sensing technique, and the potential for the technique to monitor the condition of the body and personal physical characteristics.

关键词： Unconstrained Sensing Heart Rate Body Surface Motion

DIGITAL IMAGE ANALYSIS OF PHASE STRUCTURE IN THE BLEND OF POLY(BUTYLENE TEREPHTHALATE-COCAPROLACTONE) WITH POLYCARBONATE

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Chinese Journal of Polymer Science 1992年第1期10卷 44-48页

作者：马德柱贺丽玲邹应芳罗筱烈 takafumi Hayashi Toshio Nishi Department of Material Science and Engineering University of Science and Technology of China Hefei Anhui China 230026 Department of Applied Physics Faculty of Engineering University of Tokyo Bunkyo-ku Tokyo 113 Japan

The digital image processing technique was used for the extraction of physical information from the temporal image of phase structure in the process of phase separation in the blend of poly (butylene terephthalate-co-caprolactone )with polycarbonate. The power spectrum images of the two-dimensional Fourier transformation (2DFT) of the temporal image of phase structure reflect the change of the phase size with time.

关键词： Digital image analysis Phase structure Fourier transformation Wave vector BCL copolymer

Inducible nitric oxide synthase polymorphism is associated with the increased risk of differentiated gastric cancer in a Japanese population

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World Journal of Gastroenterology 2006年第39期12卷 6361-6365页

作者： Yasuyuki Goto takafumi Ando Mariko Naito Hidemi Goto Nobuyuki Hamajima Depart-ment of Preventive Medicine/Biostatistics and Medical Decision Making Nagoya University Graduate School of Medicine 65 Tsurumai-cho Showa-ku Nagoya 466-8550 Japan Department of Gastroenterology Nagoya University Graduate School of Medicine 65 Tsurumai- cho Showa-ku Nagoya 466-8550 Japan

AIM: To examine the association of inducible nitric oxide synthase (iNOS) C150T polymorphism with gastric cancer, as well as with gastric atrophy and H pylori seropositivity. METHODS: A single nucleotide polymorphism of iNOS C150T was examined for 454 Japanese health checkup examinees (126 males and 328 females) aged 35 to 85 years without a history of cancer and 202 gastric cancer patients (134 males and 68 females) aged 33 to 94 years with pathologically confirmed diagnosis of gastric adenocarcinoma. RESULTS: The iNOS C150T polymorphism was not associated with gastric atrophy or with H pylori seropositivity. The odds ratio (OR) of the C/T + T/T for gastric cancer was increased without statistical significance (OR=1.19, 95% confidence interval (CI): 0.68-2.08). In the differentiated subgroup (n = 113), however, the OR of the C/T genotype for gastric cancer was significant (OR = 2.02, 95% CI: 1.04-3.92) relative to the C/C genotype. In addition, considering the location of gastric cancer (n = 105), there were significant differences between the controls and non-cardia group with the OR of 2.13 (95% CI: 1.08-4.18) for C/T and 1.94 (95% CI: 1.00-3.78) for C/T + T/T. CONCLUSION: The iNOS C150T polymorphism is associated with the risk of H pylori-related gastric cancerin a Japanese population. This polymorphism may play an important role in increasing the risk of gastric cancer in Asian countires with the highest rates of gastric cancer.

关键词：一氧化氮基因多态性胃癌幽门螺杆菌

Pediatric gliomatosis cerebri presenting with intratumoral hemorrhage leading to poor outcome

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Journal of Cancer Metastasis and Treatment 2016年第1期2卷 375-378页

作者： Hiromasa Adachi Masashi Kitagawa Toshinari Kawasaki takafumi Wataya Department of Neurosurgery Shizuoka Children’s HospitalShizuoka 420-8660Japan

Gliomatosis cerebri(GC)is an uncommon disease,defined as diffuse infiltration of neoplastic glial cells involving at least three cerebral *** in young population are *** described a case of 14-year-old woman with GC who did not receive any recommended treatment,because the patient’s family *** patient had a rapid deterioration in 5 months after first symptoms due to intratumoral *** is the first case report of intratumoral bleeding after diagnosis of GC is made,resulting in poor *** may acquire possibility of intratumoral hemorrhage through its development.

关键词： Gliomatosis cerebri intratumoral hemorrhage pediatric

Infected Iliac Artery Aneurysm Concomitant with Liver Abscess Caused by Fusobacterium nucleatum

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Case Reports in Clinical Medicine 2016年第7期5卷 238-242页

作者： Satoshi Yamamoto takafumi Akai Takehiro Chiyoda Hiroshi Goto Yukiyoshi Masaki Department of Surgery Ome Municipal General Hospital Tokyo Japan

We report a case of infected iliac artery aneurysm concomitant with liver abscesses caused by Fusobacterium nucleatum. A 58-year-old man developed an aneurysm of the right common iliac artery and liver abscesses. The aneurysm was resected and a femoro-femoral crossover bypass with a knitted Dacron graft was performed for impending rupture. Anaerobic cultures obtained from blood and intramural thrombus were positive for Fusobacterium nucleatum. With antibiotics, the liver abscesses disappeared without drainage. Iliopsoas abscesses developed after surgery, but it was controlled with antibiotics. The patient was free of infection 1 year after the surgery. The causative bacterium was suspected to originate in the oral cavity, because the patient had a notable history of poor chronic periodontal conditions. Clinically, infected aortoiliac aneurysm complicated by Fusobacterium is extremely rare relative to the prevalence of the pathogenic bacterium. However, it is noteworthy that Fusobacterium can cause this condition.

关键词： Infected Aortoiliac Aneurysm Fusobacterium nucleatum Liver Abscess

New Three-Dimensional Integration Technology Using Reconfigured Wafers

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New Three-Dimensional Integration Technology Using Reconfigu...