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    题名 作者 年代 出处 被引量
1中国古建筑结构力学研究进展显示文摘中国古代建筑是中国古代文化的宝贵遗产。力学的多样性也反映在古建筑结构力学研究。西安交通大学从1982年开始,对以西安明代箭楼、城楼和宁波宋代保国寺等国家重点保护文物为代表的木结构建筑,以唐代大雁塔、小雁塔等国家重点保护文物为代表的古代高层建筑,和以国家重点保护文物西安古城墙为代表的砖-土结构以及钟楼、鼓楼等中国城市的代表性古建筑的结构力学特性进行了一系列研究。得到关于古建筑结构(如斗拱、结构非线性、榫卯节点的接触力学特性、地宫、古代夯土、古塔基础、古城墙等)力学特性的新认识。本文对此进行小结,同时也介绍近年来的其它学者的一些研究。俞茂宏 ODA Y 方东平 赵均海 张德良 竺润祥 车爱兰 2006力学进展2006,36,1:46
2统一强度理论的发展及其在土木水利等工程中的应用和经济意义显示文摘统一强度理论是在中国本土原创产生和发展起来的关于材料强度和结构强度的系统新理论。它从连续统力学最基本的单元体力学模型开始,到数学建模方法,理论公式的表述,以及一系列新的理论公式都不同于以往的各种理论。它将以往各种适合于某一类材料的单一强度理论推进为可以适合于多种材料的统一强度理论。经过40多年的发展,它不仅自己形成了系统的理论,而且将很多著名的理论包容其中,形成了范围更宽广、功能更强大的理论体系。由于它具有一个统一的力学模型,清晰的物理意义,简单的线性数学表述式,能反映材料的基本特性,即SD效应(不同的抗拉强度和抗压强度)、静水应力效应、正应力效应、中间主应力效应和中间主剪应力效应,以及结构强度分析的破坏准则效应,并且与现有的实验数据相吻合,能容易地适合许多新情况;此外,统一强度理论既容易用来取得解析解,也容易用于计算机程序取得数值解。统一强度理论已被推广应用于很多领域。在连续介质和工程应用的框架下对统一强度理论的发展及其在土木工程中的应用和经济意义进行较为系统的小结。俞茂宏 Oda Y 盛谦 沈俊 顾金才 李小春 李庆斌 周小平 蒋锁红 张永兴 董毓利 刘继明 景宏君 Yoshimine M 徐栓强 2005建筑科学与工程学报2005,22,1:28
3论岩土材料屈服准则的基本特性和创新显示文摘从岩土材料的基本力学性能出发,讨论岩土材料屈服准则的基本特性和屈服准则的创新。根据国内外学者的大量实验结果,岩土材料屈服准则的基本特性为:拉压异性(SD)效应、正应力效应、静水应力效应、中间主应力效应、中间主剪应力效应、双剪应力正应力效应、双剪应力围压效应、应力角效应(应力偏张量第三不变量效应)和屈服面的外凸性。屈服准则应该满足这些基本特性,Tresca准则不符合这些条件,Mohr-Coulomb理论只能够满足部分条件,Drucker-Prager准则不能满足应力角效应。屈服准则的创新应该满足科学创新的3个要素:(1)新,前所未有;(2)比原来的准则更好;(3)能够实施、便于实际应用。总结各种力学单元体模型的发展,并以一个新的力学模型为依据,对统一强度理论补充一个拉伸破坏条件,它类似于Mohr-Coulomb准则的拉伸截断。从而将统一强度理论扩展到三向拉伸区,更能适用于岩土材料和岩土工程,也使统一强度理论在理论上更趋完整。俞茂宏 刘继明 ODA Yoshiya 高江平 2007岩石力学与工程学报2007,26,9:22
4为早食道、胃的癌症的诊断的内视镜的超声使用超声探针显示文摘 Endoscopic ultrasound(EUS) devices were first designed and manufactured more than 30 years ago,and since then investigators have reported EUS is effective for determining both the staging and the depth of invasion of esophageal and gastric cancers.We review the present status,the methods,and the findings of EUS when used to diagnose and stage early esophageal and gastric cancer.EUS using high-frequency ultrasound probes is more accurate than conventional EUS for the evaluation of the depth of invasion of superficial esophageal carcinoma.The rates of accurate evaluation of the depth of invasion by EUS using high-frequency ultrasound probes were 70%-88% for intramucosal cancer,and 83%-94% for submucosal invasive cancer.But the sensitivity of EUS using high-frequency ultrasound probes for the diagnosis of submucosal invasive cancer was relatively low,making it difficult to confirm minute submucosal invasion.The accuracy of EUS using highfrequency ultrasound probes for early gastric tumor classification can be up to 80% compared with 63% for conventional EUS,although the accuracy of EUS using high-frequency ultrasound probes relatively decreases for those patients with depressed-type lesions,undifferentiated cancer,concomitant ulceration,expanded indications,type 0-Ⅰ lesions,and lesions located in the upper-third of the stomach.A 92% overall accuracy rate was achieved when both the endoscopic appearance and the findings from EUS using high-frequency ultrasound probes were considered together for tumor classification.Although EUS using high-frequency ultrasound probes has limitations,it has a high depth of invasion accuracy and is a useful procedure to distinguish lesions in the esophagus and stomach that are indicated for endoscopic resection.Shigetaka Yoshinaga Ichiro Oda Satoru Nonaka Ryoji Kushima Yutaka Saito 2012World Journal of Gastrointestinal Endoscopy2012,4,6:21
5Management and associated factors of delayed perforation after gastric endoscopic submucosal dissection显示文摘AIM: To identify the actual clinical management and associated factors of delayed perforation after gastric endoscopic submucosal dissection(ESD).METHODS: A total of 4943 early gastric cancer(EGC) patients underwent ESD at our hospital between January 1999 and June 2012. We retrospectively assessed the actual management of delayed perforation. In addition, to determine the factors associated with delayed perforation, after excluding 123 EGC patients with perforations that occurred during the ESD procedure, we analyzed the following clinicopathological factors among the remaining 4820 EGC patients by comparing the ESD cases with delayed perforation and the ESD cases without perforation: age, sex, chronological periods, clinical indications for ESD, status of the stomach, location, gastric circumference, tumor size, invasion depth, presence/absence of ulceration, histological type, type of resection, and procedure time.RESULTS: Delayed perforation occurred in 7(0.1%) cases. The median time until the occurrence of delayed perforation was 11 h(range, 6-172 h). Three(43%) of the 7 cases required emergency surgery, while four were conservatively managed without surgical intervention. Among the 4 cases with conservative management, 2 were successfully managed endoscopically using the endoloop-endoclip technique. The median hospital stay was 18 d(range, 15-45 d). There were no delayed perforation-related deaths. Based on a multivariate analysis, gastric tube cases(OR = 11.0; 95%CI: 1.7-73.3; P = 0.013) were significantly associated with delayed perforation.CONCLUSION: Endoscopists must be aware of not only the identified factors associated with delayed perforation, but also how to treat this complicationeffectively and promptly.Haruhisa Suzuki Ichiro Oda Masau Sekiguchi Seiichiro Abe Satoru Nonaka Shigetaka Yoshinaga Takeshi Nakajima Yutaka Saito 2015World Journal of Gastroenterology2015,21,44:21
6Pancreatic neuroendocrine tumor and solid-pseudopapillary neoplasm: Key immunohistochemical profiles for differential diagnosis显示文摘AIM To reveal better diagnostic markers for differentiating neuroendocrine tumor(NET) from solid-pseudopapillary neoplasm(SPN), focusing primarily on immunohistochemical analysis.METHODS We reviewed 30 pancreatic surgical specimens of NET(24 cases) and SPN(6 cases). We carried out comprehensive immunohistochemical profiling using 9 markers: Synaptophysin, chromogranin A, pancytokeratin, E-cadherin, progesterone receptor,vimentin, α-1-antitrypsin, CD10, and β-catenin.RESULTS E-cadherin staining in NETs, and nuclear labeling of β-catenin in SPNs were the most sensitive and specific markers. Dot-like staining of chromogranin A might indicate the possibility of SPNs rather than NETs. The other six markers were not useful because their expression overlapped widely between NETs and SPNs. Moreover, two cases that had been initially diagnosed as NETs on the basis of their morphological features, demonstrated SPN-like immunohistochemical profiles. Careful diagnosis is crucial as we actually found two confusing cases showing disagreement between the tumor morphology and immunohistochemical profiles.CONCLUSION E-cadherin, chromogranin A, and β-catenin were the most useful markers which should be employed for differentiating between NET and SPN.Yusuke Ohara Tatsuya Oda Shinji Hashimoto Yoshimasa Akashi Ryoichi Miyamoto Tsuyoshi Enomoto Kaishi Satomi Yukio Morishita Nobuhiro Ohkohchi 2016World Journal of Gastroenterology2016,22,38:19
7Infrequent p53 gene mutation and expression of the cardia adenocarcinomas from a high-incidence area of Southwest China显示文摘INTRODUCTIONAdenocarcinomas of the cardia are the lesionsarising from the proximal stomach or within 3 cm ofthe gastroesophageal junction.These cancerstended to be advanced at the time of presentation,usually with poor prognosis.In recent decade,the incidence of adenocarcinoma of gastric eardiaand esophagus are increasing steadily,while therehas been a decrease in the proportion of the cancersarising from the distal stomach.TheNaoko lida Hideaki Oda Shigetoshi Aiso Takatoshi Ishikawa 2000World Journal of Gastroenterology2000,6,5:17
8Blood glucose control in patients with severe sepsis and septic shock显示文摘The main pathophysiological feature of sepsis is the uncontrollable activation of both pro-and anti-inflammatory responses arising from the overwhelming pro-duction of mediators such as pro-and anti-inflammatory cytokines. Such an uncontrollable inflammatory response would cause many kinds of metabolic derangements. One such metabolic derangement is hyperglycemia. Accordingly, control of hyperglycemia in sepsis is considered to be a very effective therapeutic approach. However, despite the initial enthusiasm, recent studies reported that tight glycemic control with intensive insulin therapy failed to show a beneficial effect on mortality of patients with severe sepsis and septic shock. One of the main reasons for this disappointing result is the incidence of harmful hypoglycemia during intensive insulin therapy. Therefore, avoidance of hypoglycemia during intensive insulin therapy may be a key issue in effective tight glycemic control. It is generally accepted that glycemic control aimed at a blood glucose level of 80-100 mg/dL, as initially proposed by van den Berghe, seems to be too tight and that such a level of tight glycemic control puts septic patients at increased risk of hypoglycemia. Therefore, now many researchers suggest less strict glycemic control with a target blood glucose level of 140-180 mg/dL. Also specific targeting of glycemic control in diabetic patients should be considered. Since there is a significantcorrelation between success rate of glycemic control and the degree of hypercytokinemia in septic patients, some countermeasures to hypercytokinemia may be an important aspect of successful glycemic control. Thus, in future, use of an artificial pancreas to avoid hypoglycemia during insulin therapy, special consideration of septic diabetic patients, and control of hypercytokinemia should be considered for more effective glycemic control in patients with severe sepsis and septic shock.Hiroyuki Hirasawa Shigeto Oda Masataka Nakamura 2009World Journal of Gastroenterology2009,15,33:13
9Complications of Gastric Endoscopic Submucosal Dissection显示文摘Ichiro Oda Haruhisa Suzuki Satoru Nonaka Shigetaka Yoshinaga 2013Digestive Endoscopy2013,,:7
10Serum manganese superoxide dismutase and thioredoxin are potential prognostic markers for hepatitis C virus-related hepatocellular carcinoma显示文摘AIM:To evaluate the clinical significance of oxidative stress markers in patients with hepatitis C virus(HCV)related hepatocellular carcinoma(HCC).METHODS:Sixty-four consecutive patients who were admitted to Kagoshima University Medical and Dental Hospital were enrolled in this retrospective study.All patients had chronic liver disease(CLD) due to infection with HCV.Thirty patients with HCV-related HCC,34 with HCV-related CLD without HCC(non-HCC),and 20 healthy volunteers(HVs) were enrolled.Possible associations between serum manganese superoxide dismutase(MnSOD) and thioredoxin(TRX) levels and clinical parameters or patient prognosis were analyzed over a mean follow-up period of 31.7 mo.RESULTS:The serum MnSOD levels were significantly higher in patients with HCV-related HCC than in patients without HCC(P = 0.03) or HVs(P < 0.001).Similarly,serum TRX levels were also significantly higher in patients with HCV-related HCC than in patients without HCC(P = 0.04) or HVs(P < 0.01).However,serum levels of MnSOD and TRX were not correlated in patients with HCC.Among patients with HCC,the overall survival rate(OSR) was lower in patients with MnSOD levels ≥ 110 ng/mL than in patients with levels < 110 ng/mL(P = 0.01),and the OSR tended to be lower in patients with TRX levels < 80 ng/mL(P = 0.05).In addition,patient prognosis with HCC was poorest with serum MnSOD levels ≥ 110 ng/mL and serum TRX levels < 80 ng/mL.Furthermore,a multivariate analysis using a Cox proportional hazard model and serum levels of five factors(MnSOD,prothrombin time,serum albumin,serum α-fetoprotein(AFP),and serum des-γ-carboxy prothrombin) revealed that MnSOD levels ≥ 110 ng/mL(risk ratio:4.12,95% confidential interval:1.22-13.88,P = 0.02) and AFP levels ≥ 40 ng/mL(risk ratio:6.75;95% confidential interval:1.70-26.85,P < 0.01) were independent risk factors associated with a poor patient prognosis.CONCLUSION:Serum MnSOD and TRX levels are potential clinical biomarkers that predict patient prognosis in HCV-related HCC.Tsutomu Tamai Hirofumi Uto Yoichiro Takami Kouhei Oda Akiko Saishoji Masashi Hashiguchi Kotaro Kumagai Takeshi Kure Seiichi Mawatari Akihiro Moriuchi Makoto Oketani Akio Ido Hirohito Tsubouchi 2011World Journal of Gastroenterology2011,17,44:7
11Dehiscence following successful endoscopic closure of gastric perforation during endoscopic submucosal dissection显示文摘Gastric perforation is one of the most serious complications that can occur during endoscopic submucosal dissection(ESD).In terms of the treatment of such perforations,we previously reported that perforations immediately observed and successfully closed with endoclips during endoscopic resection could be managed conservatively.We now report the first case in our medical facility of a gastric perforation during ESD that was ineffectively treated conservatively even after successful endoscopic closure.In December 2006,we performed ESD on a recurrent early gastric cancer in an 81-year-old man with a medical history of laparotomy for cholelithiasis.A perforation occurred during ESD that was immediately observed and successfully closed with endoclips so that ESD could be continued resulting in an en-bloc resection.Intensive conservative management was conducted following ESD,however,an endoscopic examination five days after ESD revealed dehiscence of the perforation requiring an emergency laparotomy.Masau Sekiguchi Haruhisa Suzuki Ichiro Oda Shigetaka Yoshinaga Satoru Nonaka Makoto Saka Hitoshi Katai Hirokazu Taniguchi Ryoji Kushima Yutaka Saito 2012World Journal of Gastroenterology2012,18,31:7
12Three-dimensional imaging identified the accessory bile duct in a patient with cholangiocarcinoma显示文摘The development of diagnostic imaging technology, such as multidetector computed tomography(MDCT) and magnetic resonance cholangiopancreatography(MRCP), has made it possible to obtain detailed images of the bile duct. Recent reports have indicated that a 3-dimensional(3D) reconstructed imaging system would be useful for understanding the liver anatomy before surgery. We have investigated a novel method that fuses MDCT and MRCP images. This novel system easily made it possible to detect the anatomical relationship between the vessels and bile duct in the portal hepatis. In this report, we describe a very rare case of extrahepatic cholangiocarcinoma associated with an accessory bile duct from the caudate lobe connecting with the intrapancreatic bile duct. We were unable to preoperatively detect this accessory bile duct using MDCT and MRCP. However, prior to the second operation, we were able to clearly visualise the injured accessory bile duct using our novel 3D imaging modality. In thisreport, we suggest that this imaging technique can be considered a novel and useful modality for understanding the anatomy of the portal hepatis, including the hilar bile duct.Ryoichi Miyamoto Yukio Oshiro Shinji Hashimoto Keisuke Kohno Kiyoshi Fukunaga Tatsuya Oda Nobuhiro Ohkohchi 2014World Journal of Gastroenterology2014,20,32:6
13Can endoscopic atrophy predict histological atrophy? Historical study in United Kingdom and Japan显示文摘AIM: To assess the diagnostic concordance between endoscopic and histological atrophy in the United Kingdom and Japan.METHODS: Using published data,a total of 252 patients,126 in the United Kingdom and 126 in Japan,aged 20 to 80 years,were evaluated. The extent of endoscopic atrophy was classified into five subgroups according to a modified Kimura-Takemoto classification system and was compared with histological findings of atrophy at five biopsy sites according to the updated Sydney system.RESULTS: The strength of agreement of the extent of atrophy between histology and visual endoscopic inspection showed good reproducibili ty,wi th a weighted kappa value of 0.76(P < 0.001). Multivariate analysis showed that three factors were associated with decreased concordance: Japanese ethnicity [odds ratio(OR) 0.22,95% confidence interval(CI) 0.11-0.43],older age(OR = 0.32,95%CI: 0.16-0.66) and endoscopic atrophy(OR = 0.10,95%CI: 0.03-0.36). The strength of agreement between endoscopic and histological atrophy,assessed by cancer risk-oriented grading,was reproducible,with a kappa value of 0.81(95%CI: 0.75-0.87). Only nine patients(3.6%) were endoscopically underdiagnosed with antral predominant rather than extensive atrophy and were considered false negatives.CONCLUSION: Endoscopic grading can predict histological atrophy with few false negatives,indicating that precancerous conditions can be identified during screening endoscopy,particularly in patients in western countries.Shin Kono Takuji Gotoda Shigeaki Yoshida Ichiro Oda Hitoshi Kondo Luigi Gatta Greg Naylor Michael Dixon Fuminori Moriyasu Anthony Axon 2015World Journal of Gastroenterology2015,21,46:6
14A multicenter retrospective study of endoscopic resection for early gastric cancer显示文摘Ichiro Oda Daizo Saito Masahiro Tada Hiroyasu Iishi Satoshi Tanabe Tsuneo Oyama Toshihiko Doi Yoshihide Otani Junko Fujisaki Yoichi Ajioka Tsutomu Hamada Haruhiro Inoue Takuji Gotoda Shigeaki Yoshida 2006Gastric Cancer2006,,4:6
15Influence of Kupffer cells and platelets on ischemia-reperfusion injury in mild steatotic liver显示文摘AIM: To investigate the effect of mild steatotic liver on ischemia-reperfusion injury by focusing on Kupffer cells (KCs) and platelets. METHODS: Wistar rats were divided into a normal liver group (N group) and a mild steatotic liver group (S group) induced by feeding a choline-deficient diet for 2 wk. Both groups were subjected to 20 min of warm ischemia followed by 120 min of reperfusion. The number of labeled KCs and platelets in sinusoids and the blood perfusion in sinusoids were observed by intravital microscopy (IVM), which was performed at 30, 60 and 120 min after reperfusion. To evaluate serum alanine aminotransferase as a marker of liver deterioration, blood samples were taken at the same time as IVM.RESULTS: In the S group, the number of platelets adhering to KCs decreased significantly compared with the N group (120 after reperfusion; 2.9±1.1 cells/acinus vs 4.8±1.2 cells/acinus, P<0.01). The number of KCs in sinusoids was significantly less in the S group than in the N group throughout the observation periods (before ischemia, 19.6±3.3 cells/acinus vs 28.2±4.1 cells/acinus, P<0.01 and 120 min after reperfusion, 29.0±4.3 cells/acinus vs 40.2±3.3 cells/acinus, P<0.01). The blood perfusion of sinusoids 120 min after reperfusion was maintained in the S group more than in the N group. Furthermore, elevation of serum alanine aminotransferase was lower in the S group than in the N group 120 min after reperfusion (99.7±19.8 IU/L vs 166.3±61.1 IU/L, P=0.041), and histological impairment of hepatocyte structure was prevented in the S group. CONCLUSION: Ischemia-reperfusion injury in mild steatotic liver was attenuated compared with normal liver due to the decreased number of KCs and the reduction of the KC-platelet interaction.Koichi Ogawa Tadashi Kondo Takafumi Tamura Hideki Matsumura Kiyoshi Fukunaga Tatsuya Oda Nobuhiro Ohkohchi 2013World Journal of Gastroenterology2013,19,9:6
16Aggressive preoperative management and extended surgery for hilar cholangiocarcinoma: Nagoya experience显示文摘Yuji Nimura Junichi Kamiya Satoshi Kondo Masato Nagino Katsuhiko Uesaka Koji Oda Tsuyoshi Sano Hideo Yamamoto Naokazu Hayakawa 2000Journal of Hepato - Biliary - Pancreatic Surgery2000,,2:6
17Gastric cancer treated in 2002 in Japan: 2009 annual report of the JGCA nationwide registry显示文摘Atsushi Nashimoto Kohei Akazawa Yoh Isobe Isao Miyashiro Hitoshi Katai Yasuhiro Kodera Shunichi Tsujitani Yasuyuki Seto Hiroshi Furukawa Ichiro Oda Hiroyuki Ono Satoshi Tanabe Michio Kaminishi 2013Gastric Cancer2013,,1:6
18血流介导的血管舒张,硝酸甘油诱导的血管舒张,基线肱动脉直径,充血剪切应力与心血管病危险因素之间的相关性显示文摘血流介导的血管舒张功能(flow-mediated vasodilation,FMD)已被用于评估内皮功能。充血性剪切应力(hyperemic shear stress,HSS,一种FMD的刺激因素)、硝酸甘油诱导的血管舒张(nitroglycerine-induced vasodilation,NID,非内皮依赖性血管舒张指数)以及基线肱动脉直径(brachial artery diameter,BAD)也参与血管舒张反应。刘青 叶鹏 Maruhashi T Iwamoto Y Kajikawa M Oda N Kishimoto S Matsui S Hashimoto H Aibara Y Yusoff FM Hidaka T Kihara Y Chayama K Noma K Nakashima A Goto C Hida E Higashi Y 2018中华高血压杂志2018,26,1:5
19Short- and long-term outcomes of endoscopic submucosal dissection for undifferentiated early gastric cancer显示文摘Seiichiro Abe Ichiro Oda Haruhisa Suzuki Satoru Nonaka Shigetaka Yoshinaga Tomoyuki Odagaki Hirokazu Taniguchi Ryoji Kushima Yutaka Saito 2013Endoscopy2013,,09:5
20Study on the applicability of frequency spectrum of micro-tremor and dynamic characteristics of surface ground in Asia area显示文摘The dynamic characteristics of ground soil using micro-tremor observation in Asia (Zushi and Ogasawara (Japan), Xi’an (China), Manila (Philippines), and Gujarat (India)) are studied. Ground micro-tremor signals were observed and analyzed by fast Fourier transform method (FFT). The response of ground soil to frequency of ground micro-tremor is revealed, and func- tions with frequency-dependence and frequency-selection of micro-tremor for different foundation soil strata are also researched. The horizontal to vertical spectral ratio (H/V, Nakamura technique) of micro-tremor observed at the surface ground was used to evaluate the site’s predominant period. This paper also discusses the application of micro-tremor on site safety evaluation, and gives the observed calculation results obtained at multiple points. The experimental foundation and the deduction process of the method are described in detail. Some problems of the method are pointed out. Potential use of the technique’s good expandable nature makes it a useable means for preventing and reducing disaster’s harmful effects.CHE Ai-lan IWATATE Takahiro ODA Yoshiya GE Xiu-run 2006Journal of Zhejiang University-Science A(Applied Physics & Engineering)2006,7,11:5
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