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Direct correlation of radiolarian Kilinora spiralis Zone with the Late Jurassic ammonite faunal succession in the Kurisaka Formation, Kurosegawa Terrane, SW Japan

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Science China Earth Sciences 2009年第12期52卷 1910-1923页

作者： ishida Keisuke TSUJINO Yasuyuki KOZAI Takeshi SATO Tadashi HIRSCH Francis Laboratory of Geology Institute of SAS Faculty of Science University of Tokushima Tokushima 770-8502 Japan Tokushima Prefectural Museum Bunka-no-Mori Park Tokushima 770-8070 Japan Laboratory of Geosciences Naruto University of Education Naruto 772-8502 Japan Fukada Geological Institute Hon-Komagome 2-13-12 Bunkyo-Ku Tokyo 113-0021 Japan

The last appearance datum of the radiolarian Kilinora spiralis is recorded above the first appearance datum of the ammonite Ataxioceras (A.) kurisakense in the Todoro Section of the Kurisaka Formation, Southern Kurosegawa Terrane, Shikoku, SW Japan. The constraint by ammonite age prolongs the range of the Kilinora spiralis Zone, a remarkable Jurassic radiolarian zone in Japan-NW Pacific region, into the lower Kimmeridgian. The direct correlation of the Kilinora spiralis zone with the Late Jurassic ammonite faunal succession in the Kurisaka Formation will provide a clue to the still pending chronological difference between European and North American radiolarian zones.

关键词： Late Jurassic LAD of Kilinora spiralis radiolarian zonation FAD of Ataxioceras (A.) kurisakense Kurisaka Formation Kurosegawa Terrane SW Japan

Function of hepatocyte spheroids in bioactive microcapsules is enhanced by endogenous and exogenous hepatocyte growth factor

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Bioactive Materials 2023年第10期28卷 183-195页

作者： Kihak Gwon Daheui Choi Jose Mde Hoyos-Vega Harihara Baskaran Alan M.Gonzalez-Suarez Seonhwa Lee Hye Jin Hong Kianna M.Nguyen Ether Dharmesh Go Sugahara Yuji ishida Takeshi Saito Gulnaz Stybayeva Alexander Revzin Department of Physiology and Biomedical Engineering Mayo ClinicRochesterMNUSA Department of Chemical and Biomolecular Engineering Case Western Reserve UniversityClevelandOHUSA Biomedical Engineering Saint Louis UniversitySt.LouisMOUSA University of Southern Californi1 Keck School of MedicineDepartment of MedicineDivision of Gastrointestinal and Liver DiseasesLos AngelesCAUSA Research and Development Department PhoenixBioCo.LtdKagamiyam1Higashi-Hiroshim1Hiroshim1Japan USC Research Center for Liver Diseases Los AngelesCAUSA

The ability to maintain functional hepatocytes has important implications for bioartificial liver development,cell-based therapies,drug screening,and tissue engineering.Several approaches can be used to restore hepatocyte function in vitro,including coating a culture substrate with extracellular matrix(ECM),encapsulating cells within biomimetic gels(Collagen-or Matrigel-based),or co-cultivation with other cells.This paper describes the use of bioactive heparin-based core-shell microcapsules to form and cultivate hepatocyte spheroids.These microcapsules are comprised of an aqueous core that facilitates hepatocyte aggregation into spheroids and a heparin hydrogel shell that binds and releases growth factors.We demonstrate that bioactive microcapsules retain and release endogenous signals thus enhancing the function of encapsulated hepatocytes.We also demonstrate that hepatic function may be further enhanced by loading exogenous hepatocyte growth factor(HGF)into microcapsules and inhibiting transforming growth factor(TGF)-β1 signaling.Overall,bioactive microcapsules described here represent a promising new strategy for the encapsulation and maintenance of primary hepatocytes and will be beneficial for liver tissue engineering,regenerative medicine,and drug testing applications.

关键词： Droplet microfluidics Bioactive microcapsules Hepatocyte spheroid Heparin Hepatocyte growth factor

The Case of the Carnian(Triassic) Conodont Genus Metapolygnathus Hayashi

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Journal of Earth Science 2015年第2期26卷 219-223页

作者： Ali Murat Kili Pablo Plasencia Keisuke ishida Francis Hirsch Department of Geological Engineering Balikesir University Department of Geology and ICBIBE University of ValenciaDr. Moliner 50. 46100 Burjassot Spain Laboratory of Geology Faculty of Sciences Tokushima University Laboratory of Geology Faculty of Sciences Naruto University

Successive evolutionary trends control the genera Paragondolella Mosher and Meta- polygnathus Hayashi over the about 20 Ma long Aegean-Tuvalian timespan. In consideration of their evolutionary criteria, these genera have been retained together with Carnepigondolella Kozur and the two new genera proposed herein, MazzaeUa （type species M. carnica） and Hayashiella （type species H. nodosa）. Mazzaella n. gen. represents a Late Julian side branch ofMetapolygnathus, harbouring a platform ornamentation similar to the several million years younger Tuvalian lineage of Carnepigondolella, issued from Hayashiella n. gen. that is intermediary between Metapolygnathus and CarnepigondoleUa, based on appearance and platform ornamentation.

关键词： Carnian conodont phylogeny evolutionary trend.

Thermodynamic assessment of the Ni-Sb binary system

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Rare Metals 2008年第4期27卷 384-392页

作者： CAO Zhanmin TAKAKU Yoshikazu OHNUMA Ikuo KAINUMA Ryosuke ZHU Hongmin ishida Kiyohito School of Metallurgical and Ecological Engineering University of Science and Technology Beijing Beijing 100083 China Department of Materials Science Graduate School of Engineering Tohoku University Sendal 980-8578 Japan

The Ni-Sb binary alloy system was thermodynamically assessed using CALPHAD approach in this article. Excess Gibbs energies of solution phases, liquid and fcc phases, were formulated using the Redlich-Kister expression. The intermediate phases were modeled by the sublattice model with （Ni,Va）0.5（Ni,Sb）0.25（Ni）0.25 for Ni3Sb_HT phase and （Ni,Va）0.3333（Sb）0.3333（Ni,Va）0.3333 for NiSb phase. The other phases including Ni3Sb, Ni7Sb3, and NiSb2 were treated as stoichiometric compound owing to their narrow composition ranges. Based on the reported thermodynamic properties and phase diagram data, the thermodynamic parameters of these phases were optimized, and the obtained values can reproduce the available experimental data well.

关键词： Ni-Sb binary system thermodynamic assessment CALPHAD phase diagram

Clothing skirt designed on conical truss model

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Advances in Manufacturing 2013年第2期1卷 130-135页

作者： Eri Nakayama Sachiko ishida Yu-Jing Liao Ichiro Hagiwara Organization for the Strategic Coordination of Research and Intellectual Property Meiji University8114-21-1NakanoNakano-kuTokyo 164-8525Japan

Several applications of Origami have been tested in industrial area. However, Origami based design is found only in lamp shade and wrapping in design area, and has not been practically applied especially in clothing. In this paper, the conical truss model is applied in the clothing skirt, and the simulation software from 2D to 3D is developed by parametric Origami module （POM）. Finally, the pattern is copied on felt clothing, and the scaled model of skirt on the basis of conical reverse truss model design is made.

关键词： Origami Conical truss model ParametricOrigami module （POM）

Liver cell adenoma showing sequential alteration of radiological findings suggestive of well-differentiated hepatocellular carcinoma

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World Journal of Gastroenterology 2009年第10期15卷 1267-1272页

作者： Takayuki Kogure Yoshiyuki Ueno Satoshi Sekiguchi Kazuyuki ishida Takehiko Igarashi Yuta Wakui Takao Iwasaki Tooru Shimosegawa Division of Gastroenterology Graduate School of MedicineTohoku UniversitySendai 980-8574Japan Division of Advanced Surgical Science and Technology Graduate School of MedicineTohoku University Sendai 980-8574Japan Department of Pathology Tohoku University HospitalSendai 980-8574Japan Division of Gastroenterology Osaki Citizen Hospital Furukawa 989-6183Japan

A liver tumor 35 mm in diameter was found incidentally in a 40-year-old woman who had no history of liver diseases or the use of oral contraceptives.Radiological diagnostics showed the typical findings of liver cell adenoma(LCA).Dynamic computed tomography revealed that the tumor showed a homogenous enhancement in the arterial phase and almost the same enhancement as the surrounding liver parenchyma in the delayed phase.The tumor was found to contain fat on magnetic resonance imaging.A benign fat containing liver tumor was suggested.However,radiological findings altered,which caused us to suspect that a welldifferentiated hepatocellular carcinoma(HCC)containing fat was becoming dedifferentiated.Partial hepatectomy was performed and the pathological findings showed the typical findings of LCA.This case was an extremely rare LCA,which had no background of risk for LCA and developed the sequential alteration of the radiological findings to suspect well-differentiated HCC.

关键词：肝细胞腺瘤调查结果高分化放射性肝癌改建电脑断层扫描周期分析

Thermodynamic reassessment of Ni–Ga binary system

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Rare Metals 2015年第12期34卷 864-872页

作者： Zhan-Min Cao Xian Shi Wei Xie Ikuo Ohnuma Kiyohito ishida Zhi-Yu Qiao State Key Laboratory of Advanced Metallurgy School of Metallurgical and Ecological Engineering University of Science and Technology Beijing Department of Materials Science Graduate School of Engineering Tohoku University

New experimental measurements of the phase diagram and the mixing enthalpy of liquid phase along with the previous experimental data were used in a reassessment of the Ni–Ga system. A set of self-consistent thermodynamic parameters of the Ni–Ga system is obtained using the calculation of phase diagram (CALPHAD) technique, and the available phase diagram and thermodynamic data are reproduced well within experimental error limits. Some noticeable improvements are obtained in the present work compared with the previous assessment: (1) the calculated Ga-rich liquidus is more reasonable; (2) Ni3Ga7 is adopted as the most Ga-rich compound rather than NiGa4; (3) the Ni5Ga3 phase is treated as the nonstoichiometric compound with consideration of its narrow homogeneity range; (4) the phase transformation between B81.5_Ni3Ga2 and Ni13Ga9 is considered instead of treating them as Ni3Ga2 phase simply; (5) the latest experimental data of mixing enthalpy for the liquid phase are adopted. The present study can be used as a basis for the development of a thermodynamic database of the Ni-based semiconductor alloy systems.

关键词： Ni–Ga system CALPHAD technique Thermodynamic reassessment Phase diagram

Regulating migration of esophageal stents-management using a Sengstaken-Blakemore tube:A case report and review of literature

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World Journal of Gastroenterology 2018年第28期24卷 3192-3197页

作者： Hisaho Sato Kaoru ishida Shusaku Sasaki Masahiro Kojika Shigeatsu Endo Yoshihiro Inoue Akira Sasaki Department of Critical Care Medicine Iwate Medical UniversitySchool of MedicineMoriokaIwate 020-0023Japan Department of Surgery Iwate Medical UniversitySchool of MedicineMoriokaIwate 020-0023Japan Morioka Yuai Hospital MoriokaIwate 020-0834Japan

Stent migration, which causes issues in stent therapy for esophageal perforations, can counteract the therapeutic effects and lead to complications. Therefore, techniques to regulate stent migration are important and lead to effective stent therapy. Here, in these cases, we placed a removable fully covered self-expandable metallic stent(FSEMS) in a 52-year-old man with suture failure after surgery to treat Boerhaave syndrome, and in a 53-yearold man with a perforation in the lower esophagus due to acute esophageal necrosis. At the same time, we nasally inserted a Sengstaken-Blakemore tube(SBT), passing it through the stent lumen. By inflating a gastric balloon, the lower end of the stent was supported. When the stent migration was confirmed, the gastric balloon was lifted slightly toward the oral side to correct the stent migration. In this manner, the therapy was completed for these two patients. Using a FSEMS and SBT is a therapeutic method for correcting stent migration and regulating the complete migration of the stent into the stomach without the patient undergoing endoscopic rearrangement of the stent. It was effective for positioning a stent crossing the esophagogastric junction.

关键词： Self-expandable metallic stents Esophageal perforation Boerhaave syndrome Endoscopy Enteral nutrition

Ni-Al-Cr系富Ni区相平衡研究(英文)

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稀有金属材料与工程 2001年第3期30卷 173-177页

作者：贾成厂 ishida Kiyohito Nishizawa Taiji 北京科技大学 Tohoku大学

用热扩散偶实验和热力学模型研究和计算了Ｎｉ－Ａｌ－Ｃｒ系富Ｎｉ区γ，ａ，γ’和β相的相平衡。用规则溶体和亚点阵模型计算了该体系９００℃－１３００℃区间的等温截面，计算结果与实验值相符合。

关键词：相图高温合金热力学分析 Ni-Al-Cr系