检索结果-南通市图书馆

Muscle hematoma:A critically important complication of alcoholic liver cirrhosis

World Journal of Gastroenterology 2009年第35期15卷 4457-4460页

作者： Chiyo Sugiyama Akifumi Akai Noriyoshi Yamakita Tsuneko Ikeda Keigo yasuda Department of Internal Medicine Matsunami General Hospital185-1 DendaiKasamatsu-choHashima-gunGifu 501-6062Japan Department of Pathology Matsunami General Hospital185-1 DendaiKasamatsu-choHashima-gunGifu 501-6062Japan

An iliopsoas hematoma can occur either spontaneously or secondary to trauma or bleeding tendency due to hemophilia and anticoagulant *** liver cirrhosis is commonly associated with coagulopathy, iliopsoas hematoma is very *** herein,present a case of bilateral iliopsoas hematoma in a patient with alcoholic cirrhosis,and review the literature on muscle hematoma associated with cirrhosis.A 56-year-old man with alcoholic cirrhosis was admitted in a state of shock with *** cause of anemia could not be detected,and the patient was treated conservatively. The site of bleeding was not detected with either gastroduodenal endoscopy or upper abdominal computed tomography,the latter of which did not include the iliopsoas *** died on the 10th day of admission and bilateral iliopsoas hematomas were found on *** iron stain was positive in the iliopsoas *** cases of muscle hematoma associated with cirrhosis,including the present case, were found in a review of the *** of these cases involved the rectus abdominis muscle,3 involved the iliopsoas muscle and 1 involved combined *** cirrhosis accounted for 75%of the *** case(12.5%)was associated with virus- related cirrhosis,and another with combined virus- and alcohol-related *** mortality rate was 75%despite early diagnosis and low risk scores for *** hematoma in patients with cirrhosis isclosely related to alcoholism,and the mortality rate of the condition is extremely *** conclusion,muscle hematoma should be recognized as an important complication of cirrhosis.

关键词： Alcohol Bilateral Cirrhosis lliopsoas Muscle hematoma

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Mutations in carboxy-terminal part of E2 including PKR/eIF2αphosphorylation homology domain and interferon sensitivity determining region of nonstructural 5A of hepatitis C virus 1b:Their correlation with response to interferon monotherapy and viral load

引用

World Journal of Gastroenterology 2006年第23期12卷 3722-3728页

作者： Koji Ukai Masatoshi Ishigami Kentaro Yoshioka Naoto Kawabe Yoshiaki Katano Kazuhiko Hayashi Takashi Honda Motoyoshi Yano hidemi Goto Division of Gastroenterology Department of Internal MedicineNagoya University Graduate School of MedicineNagoyaJapan Division of Liver and Biliary Diseases Department of Internal MedicineFujita Health University School of MedicineAichiJapan

AIM： To study the amino acid substitutions in the carboxy （C）-terminal part of E2 protein and in the interferon （IFN） sensitivity determining region （ISDR） and their correlation with response to IFN and viral load in 85 hepatitis C virus （HCV）-lb-infected patients treated with IFN. METHODS： The C-terminal part of E2 （codons 617-711） including PKR/eIF2α phosphorylation homology domain （PePHD） and ISDR was sequenced in 85 HCV-1b-infected patients treated by IFN monotherapy. RESULTS： The amino acid substitutions in PePHD detected only in 4 of 85 patients were not correlated either with response to iFN or with viral load. The presence of substitutions in a N-terminal variable region （codons 617-641） in the C-terminal part of E2 was significantly correlated with both small viral load （33.9% vs 13.8%, P = 0.0394） and sustained response to iFN （25.0% vs 6.9 %, P = 0.0429）. Four or more substitutions in ISDR were significantly correlated with both small viral load （78.6% vs 16.2%, P 〈 0.0001） and sustained response to iFN （85.7% vs 2.9%, P 〈 0.0001）. In multivariate analysis, ISDR in nonstructural （NS） 5A （OR = 0.39, P 〈 0.0001） and N-terminal variable region （OR = 0.51, P = 0.039） was selected as the independentpredictors for small viral load, and ISDR （OR = 39.0, P 〈 0.0001） was selected as the only independent predictor for sustained response. CONCLUSION： The N-terminal variable region in the C-terminal part of E2 correlates with both response to IFN monotherapy and viral load and is one of the factors independently associated with a small viral load.

关键词： E2 Genotype HCV Interferon ISDR NS5A PePHD PKR SVR

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nanoporous magnesium

引用

Nano Research 2018年第12期11卷 6428-6435页

作者： Ilya Vladimirovich Okulov Sviatlana V.Lamaka Takeshi Wada Kunio Yubuta Mikhail L.Zheludkevich Jorg Weissmuller Jurgen Markmann hidemi Kato Institute for Materials Research Tohoku UniversityKatahira 2-1-1Sendai980-8577Japan Institute of Materials Research Materials MechanicsHelmholtz-Zentrum Geesthacht21502GeesthachtGermany MagiC-Magnesium Innovation Centre Helmholtz-Zentrum Geesthacht21502GeesthachtGermany Faculty of Engineering University of Kiel24118KielGermany Institute of Materials Physics and Technology Hamburg University of Technology21073HamburgGermany

In this study, we present freestanding nanoporous magnesium as a novel lightweight material with high potential for structural and functional applications. Thus far, the high reactivity of Mg with oxygen and aqueous media prevented the fabrication of nanoporous Mg. First, in order to synthesize nanoporous Mg, we fabricated a bicontinuous nanocomposite consisting of interpenetrating Mg and non-Mg phases by liquid metal dealloying. The non-Mg phases in the nanocomposite protect Mg against corrosion. Second, we etched the non-Mg phases from the nanocomposite, leaving nanoporous Mg, using HF solution. This process is advantageous because the nanoporous Mg was passivated by a MgF2 layer during the etching. Our approach is very flexible, and we demonstrate that versatile microstructures of the nanoporous Mg—e.g., nanoscale bicontinuous network, hierarchical, or plate-like structures—can be designed for the given needs. More importantly, these nanoporous Mg samples can readily be exposed to air without being harmed by corrosion.

关键词： dealloying nanoporous magnesium

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Structure defect prediction of single crystal turbine blade by dendrite envelope tracking model

引用

中国有色金属学会会刊：英文版 2006年第B2期16卷 582-585页

作者：王同敏 Itsuo OHNAKA Hideyuki yasuda 苏彦庆郭景杰 School of Materials Science and Engineering State Key Laboratory of Materials Modification by Laser Ion and Electron Beams Dalian University of Technology Dalian 116024 China Graduate School of Engineering Osaka University Osaka 565-0871 Japan School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001China

The structure defects such as stray grains during unidirectional solidification can severely reduce the performance of single crystal turbine blades. A dendrite envelope tracking model is developed for predicting the structure defects of unidirectional solidification turbine blade. The normal vector of dendrite envelope is estimated by the gradient of dendrite volume fraction, and the growth velocity of the dendrite envelope (dendrite tips) is calculated with considering the anisotropy of grain growth. The solute redistribution at dendrite envelope is calculated by introducing an effective solute partition coefficient. Simulation tests show that the solute-build-up due to the rejection at envelope greatly affects grain competition and consequently solidification structure. The model is applied to predict the structure defects (e.g. stray grain) of single crystal turbine blade during unidirectional solidification. The results show that the developed model is reliable and has the following abilities: reproduce the growth competition among the different-preferential-direction grains; predict the stray grain formation; simulate the structure evolution (single crystal or dendrite grains).

关键词：涡轮叶片单晶铸件结构缺陷预测枝晶包络跟踪模型

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Investigation on the Solidification and Phase Transformation in Pb-Free Solders Using In Situ Synchrotron Radiography and Diffraction:A Review

引用

Acta Metallurgica Sinica(English Letters) 2022年第1期35卷 49-66页

作者： Guang Zeng Shiqian Liu Qinfen Gu Zebang Zheng Hideyuki yasuda Stuart D.McDonald Kazuhiro Nogita School of Materials Science and Engineering Central South UniversityChangsha 410083China Nihon Superior Centre for the Manufacture of Electronic Materials(NS CMEM) School of Mechanical and Mining EngineeringThe University of QueenslandBrisbaneQLD 4072Australia Graduate School Shenzhen Technology UniversityShenzhen 515118China Australian Synchrotron ANSTO.800 Blackburn RdClaytonVIC 3168Australia State Key Laboratory of Solidification Processing School of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Department of Materials Science and Engineering Kyoto UniversitySakyo‑kuKyoto 606‑8501Japan

It is widely accepted that further development of Pb-free solder alloys for improved processing and in-service properties of next-generation electronics,can be accelerated through a fundamental understanding of phase transformation and microstructure control in Pb-free solder *** characterization techniques including synchrotron radiation provide a comprehensive toolset to measure the composition,crystallography,morphology,and properties of the major components of solder *** research using such techniques is reviewed in detail including the characterization of the eff ects of microalloy additions on the microstructure and properties of Pb-free solder joints,especially those on the intermetallic *** discoveries outlined are of scientific and industrial relevance and have implications for new solder alloy composition design and the reliability of lead-free solder joints.

关键词： Cu_(6)Sn_(5)intermetallic Synchrotron radiation Solidification Phase transformation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Visualization of a Laminar Necklace Vortex System in Front of a Vertical Rectangular Plate on a Ground Wall

引用

Journal of Flow Control, Measurement & Visualization 2015年第2期3卷 75-85页

作者： Yasuhiro Nakahara hidemi Yamada Department of Mechanical and Energy Systems Engineering Oita University Oita Japan

Various properties of a necklace vortex system formed around a rectangular plate standing vertically on a flat ground wall were investigated by visualizations produced by injecting fluorescent dye into a water channel flow. As a result, it was found that the necklace vortex pattern had three steady systems depending on the Reynolds number Reh, the relative height h/δ of the rectangular plate compared with the laminar boundary layer thickness and the aspect ratio w/h. As it is expected that the aspect ratio of the rectangular plate will typify the projected area configuration of various three-dimensional bodies, the aspect ratio is varied widely from 0.5 to 7.0. The transitional boundaries of Reh and h/δ in the 2-vortex, 4-vortex and 6-vortex systems for each aspect ratio decreased when w/h < 3.0, and increased when w/h ≥ 3.0 as w/h increased. The x-direction length of the main vortex position XV1/h was almost constant when w/h < 3.0, and decreased when w/h ≥ 3.0 as Reh increased. Then, the separation length r1/h increased when w/h < 3.0 and Reh < 1000, and became almost constant when w/h ≥ 3.0 and Reh ≥ 1000 as w/h and Reh increased. Moreover, the increase of r1/h is notably rapid when w/h < 3.0.

关键词： Flow Visualization Necklace Vortex System Rectangular Plate Laminar Boundary Layer

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Efficacy of multislice computed tomography for gastroenteric and hepatic surgeries

引用

World Journal of Gastroenterology 2005年第10期11卷 1532-1534页

作者： Hiroshi Ohtani hidemi Kawajiri Yuichi Arimoto Koichi Ohno Yasuhisa Fujimoto Hiroko Oba Kenji Adachi Masaya Hirano Shoichi Terakawa Mitsuo Tsubakimoto Department of Surgery Department of Gastroenterology Department of Radiology

AIM: To determine the efficacy of multislice CT for gastroenteric and hepatic ***: Dual-phase helical computed tomography was performed in 50 of 51 patients who underwent gastroenteric and hepatic surgeries. Twenty-eight, eighteen and four patients suffering from colorectal cancer, gastric cancer,and liver cancer respectively underwent colorectal surgery (laparoscopic surgery: 6 cases), gastrectomy, and hepatectomy. Three-dimensional computed tomography imaging of the inferior mesenteric artery, celiac artery and hepatic artery was performed. And in the follow-up examination of postoperative patients, multiplanar reconstruction image was made in case of ***: Scans in 50 patients were technically satisfactory and included in the analysis. Depiction of major visceral arteries, which were important for surgery and other treatments, could be done in all *** visualization of the left colic artery and sigmoidal arteries, the celiac artery and its branches, and hepatic artery was very useful to lymph node dissection,the planning of a reservoir and hepatectomy. And multiplanar reconstruction image was helpful to diagnosis for the postoperative follow-up of ***: Three-dimensional volume rendering or multiplanar reconstruction imaging performed by multislice computed tomography was very useful for gastroenteric and hepatic surgeries.

关键词： Multislice CT Three-dimensional CT MPR Gastroenteric surgery Hepatic surgery

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Use of color Doppler ultrasonography in the diagnosis of anomalous connection in pancreatobiliary disease

引用

World Journal of Gastroenterology 2005年第7期11卷 1018-1022页

作者： Hiroki Kawashima Yoshiki Hirooka Akihiro Itoh Senju Hashimoto Terutomo Itoh Kazuo Hara Akira Kanamori Naoki Ohmiya Yasumasa Niwa hidemi Goto Department of Gastroenterology Department of Endoscopy

AIM: To estimate the detectability of anomalous connection in pancreatobiliary disease (ACPBD) cases, measuring gallbladder wall blood flow (GWBF).METHODS: In the retrospective study, we enrolled 42subjects with gallbladder wall thickening. GWBF velocity was determined as an average value of the peak velocity of color signals on the gallbladder wall, three times in each case. Based on the findings on endoscopic ultrasonography (EUS) or endoscopic retrograde cholangiopancreatography (ERCP), the 42 subjects were divided into 11 cases with ACPBD and 31 cases without ACPBD. In the prospective study, the subjects were 92 cases with gallbladder wall thickening. Using the cut-off level of the flow velocity obtained in the retrospective study, the usefulness of measuring GWBF velocity in diagnosing ACPBD was ***: In the retrospective study, imaging of GWBF was obtained in 40 of the 42 subjects. The mean GWBF velocity of the ACPBD cases was 29.4±3.9 cm/s(mean±SD), which was significantly different (P＜0.0001;95% CI 5.48-13.2) from that of the without ACPBD cases(20.1±5.9 cm/s). Based on this result, we prepared a receiver operating characteristic curve, and the cut-off level appropriate for diagnosing ACPBD was estimated to be 25 cm/s. In the prospective study, GWBF was detected in 86 of the 92 subjects. Based on the EUS or ERCP findings, the 92 subjects were divided into 15 cases with ACPBD and 77 cases without ACPBD. When a cut-off level of 25 cm/s was employed, ACPBD could be diagnosed with a sensitivity of 87.0% (13/15) and a specificity of87.3% (62/71).CONCLUSION: Measurement of GWBF velocity, which is less invasive and provides objective values, is very useful for diagnosing ACPBD prior to the development of malignant tumors in cases with gallbladder wall thickening.

关键词： Color Doppler ultrasonography Anomalous connection in pancreatobiliary disease Gallbladder cancer Gallbladder wall blood flow Endoscopic ultrasonography

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

折纸超材料合规机制的设计

引用

Acta Mechanica Sinica 2023年第7期39卷 61-70页

作者： Yasuhiro Miyazawa Hiromi yasuda Jinkyu Yang Department of Aeronautics and Astronautics University of WashingtonSeattleWashington 98195USA Aviation Technology Directorate Japan Aerospace Exploration AgencyMitakaTokyo 810015Japan Department of Mechanical Engineering Seoul National UniversitySeoul 08826Republic of Korea

折纸作为一种折纸艺术,几个世纪以来一直被艺术家们广泛探索.直到最近几十年,它才因其复杂的几何形状和丰富的力学性能而受到数学家和工程师的关注.以折纸为灵感的超材料的激增为材料和结构的设计打开了一扇新的窗口.通常,会根据标有合... 详细信息

折纸作为一种折纸艺术,几个世纪以来一直被艺术家们广泛探索.直到最近几十年,它才因其复杂的几何形状和丰富的力学性能而受到数学家和工程师的关注.以折纸为灵感的超材料的激增为材料和结构的设计打开了一扇新的窗口.通常,会根据标有合规机制的折痕线折叠一张材料来构建折纸结构.尽管它们在折纸制造中很重要,但在折纸超材料的设置中,这种合规机制尚未得到探索.本研究探讨了合规机制设计参数与折纸力学性能之间的关系.尤其我们采用的是单铰链折痕和Kresling折纸,这是刚性和非刚性折纸单元的代表性示例,采用双针穿孔兼容机构设计制造.我们使用不同的折痕参数进行轴向压缩测试,并将结果拟合到由轴向和扭转弹簧组成的棒铰折纸模型中.使用高斯回归过程提取弹簧系数和折痕参数之间的关系.结果表明,折痕参数的变化以非常不同的方式对每个弹簧元件有显著贡献,这表明合规机制根据变形模式的微调性.特别是,刚性和非刚性折纸的弹簧刚度随折痕参数而变化不同,即使调整了相同的折痕参数也是如此.此外,我们报道了Kresling折纸的定性静态响应只需改变折痕参数,就可以在单稳态和双稳态之间,或者线性和非线性之间调节,同时可以保持相同的折叠图案几何形状.我们相信,我们的结果为折纸机械超材料的褶皱选择合规机制提供了一个库和指南.

关键词：几何形状折痕超材料弹簧元件折纸扭转弹簧非刚性单稳态

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

SMALL ORGAN SIZE 1 and SMALL ORGAN SIZE 2/DWARF AND LOW-TILLERING Form aComplex to Integrate Auxin and Brassinosteroid Signaling in Rice

引用

Molecular Plant 2017年第4期10卷 590-604页

作者： Ko Hirano Hideki Yoshida Koichiro Aya Mayuko Kawamura Makoto Hayashi Tokunori Hobo Karma Sato-lzawa hidemi Kitano Miyako Ueguchi-Tanaka Makoto Matsuoka Bioscience and Biotechnology Center Nagoya University Nagoya 464-8601 Japan

Although auxin and brassinosteroid （BR） synergistically control various plant responses, the molecular mechanism underlying the auxin-BR crosstalk is not wen understood. We previously identified SMOS1, an auxin-regulated APETALA2-type transcription factor, as the causal gene of the small organ size 1 （smosl） mutant that is characterized by a decreased final size of various organs in rice. In this study, we identified another smos mutant, smos2, which shows the phenotype indistinguishable from smosl. SMOS2 was identical to the previously reported DWARF AND LOWoTILLERING （DLT）, which encodes a GRAS protein involved in BR signaling. SMOS1 and SMOS2/DLT physically interact to cooperatively enhance transcriptional transactivation activity in yeast and in rice nuclei. Consistently, the expression of OsPHI-1, a direct target of SMOS1, is upregulated only when SMOS1 and SMOS2/DLT proteins are both present in rice ceils. Taken together, our results suggest that SMOS1 and SMOS2/DLT form a keystone complex on auxin-BR signaling crosstalk in rice.

关键词： auxin brassinosteroid crosstalk rice transcription factor

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：