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1547篇 您的检索式:作者名="Bucher"
    题名 作者 年代 出处 被引量
1塔河油田奥陶系碳酸盐岩裂缝成因研究显示文摘塔河油田碳酸盐岩储集层主要为岩溶作用、多期构造叠加及构造变形作用形成的缝洞型储集层,裂缝具有连通有效储存空间的桥梁作用。区分构造裂缝与非构造裂缝,结合塔河油田构造特征,并对碳酸盐岩储层裂缝特征、分类及其成因进行了分析。研究表明:构造裂缝为塔河油田岩溶储层发育提供了流体运移通道,为油气的运移,特别是垂向运移提供了条件;非构造裂缝的存在改善了储层储渗性能,扩大了储层泄油面积。构造裂缝和非构造裂缝的存在作为储层的有利影响因素,对其进行深入研究可以为碳酸盐岩储层开发提供有益参考,并可增加储层预测产量。艾合买提江.阿不都热和曼 钟建华 Kurt Bucher Ingrid Stober 2009特种油气藏2009,16,4:20
2Segmental duodenectomy for gastrointestinal stromal tumor of the duodenum显示文摘AIM: To evaluate the results of segmental duodenectomy (SD) and pancreaticoduodenectomy (PD) for duodenal gastrointestinal stromal tumor (GIST) and help clinicians with surgical management. METHODS: All patients who underwent surgery for non-metastatic GIST of the duodenum in a single institution since 2000 were prospectively followed up. Seven patients (median age 51 years, range: 41-73 years) were enrolled: five underwent SD and two underwent PD. RESULTS: All the patients had a complete resection (R0), with no postoperative morbidity and mortality. Among the SD group, GIST was classified as low risk in two patients, intermediate risk in two, and high risk in one, according to the Fletcher scale, (vs two high risk patients in the PD group). With a median followup of 41 (18-85) mo, disease-free survival (DFS) rateswere 100% after SD and 0% after PD (P < 0.05). The median DFS was 13 mo in the PD group. CONCLUSION: Whenever associated with clear surgical margins, SD is a reliable and curative option for most duodenal GISTs, and is compatible with longterm DFS.Nicolas Christian Buchs Pascal Bucher Pascal Gervaz Sandrine Ostermann Franois Pugin Philippe Morel 2010World Journal of Gastroenterology2010,16,22:13
3西阿尔卑斯Zermatt-Saas洋壳深俯冲超高压变质带与我国新疆西南天山超高压变质带的比较显示文摘根据对西阿尔卑斯Zernatt-Saas带的野外地质考察及有关资料的总结,详细地介绍了西阿尔卑斯Zermatt-Saas洋壳深俯冲超高压变质带的地质概括、岩石组成和变质作用演化过程,并着重与我国新疆西南天山洋壳深俯冲超高压变质带进行了比较,探讨了这两个洋壳深俯冲超高压变质带在变质作用和地质演化方面的异同。在此基础上,总结了这两个目前世界上已知最典型的洋壳深俯冲超高压变质带的基本地质特征是都具有保存完好的洋壳岩石组合特征和较低的地热梯度。张立飞 吕增 李旭平 Kurt Bucher 2007高校地质学报2007,13,3:8
4蛇绿岩套中超基性岩体的岩石组合:蛇纹岩、异剥钙榴岩和蛇绿碳酸岩——以西阿尔卑斯Zermatt-Saas蛇绿岩为例显示文摘蛇纹岩、异剥钙榴岩和蛇绿碳酸岩是蛇绿岩套中超基性单元特有的3类岩石组合,该套岩石组合的形成过程复杂,经历了从地幔岩浆结晶分异、洋脊变质作用改造和俯冲-仰冲构造过程,记录了从地幔岩浆侵位到造山带形成、演化的全程信息。蛇纹岩由方辉橄榄岩、二辉橄榄岩和纯橄岩通过水化和氧化过程而形成;异剥钙榴岩由含水石榴石、符山石、绿帘石族矿物、透辉石和绿泥石等含水和含钙的硅酸盐矿物组成,是由基性岩经历钙交代和水化作用而形成;蛇绿碳酸岩则由高度破碎变形的蛇纹岩角砾和碳酸岩基质(方解石、白云石或菱镁矿)共同组成,碳酸钙主要来自海水参与蛇纹岩化过程产生的富钙热液。阿尔卑斯西部的Zermatt-Saas蛇绿岩体中这3种岩石的组合研究表明:蛇纹岩化过程发生在大洋变质时期,超基性岩体在海水的作用下形成蛇纹岩。蛇纹岩化过程中释放出主要来自斜方辉石和单斜辉石的钙,与水共同作用交代超基性岩体中的基性岩脉,从而形成异剥钙榴岩。蛇绿碳酸岩形成于俯冲变质之前或俯冲变质的早期。这3类岩石一经形成,都经历了其后的叠加变质作用,进而表明Zermatt-Saas蛇绿岩经历了大洋变质、与俯冲、折返和抬升有关的高压变质和区域变质、绿片岩相变质和晚期热液变质作用的pT轨迹演化,代表着西阿尔卑斯从洋脊变质作用到俯?李旭平 Meinert RAHN Kurt BUCHER 张立飞 2003地学前缘2003,10,4:7
5Orthotopic liver transplantation for giant liver haemangioma: A case report显示文摘In liver haemangiomas, the risk of complication rises with increasing size, and treatment can be obligatory. Here we present a case of a 46-year-old female who suffered from a giant haemangioma causing severe portal hypertension and vena cava compression, leading to therapy refractory ascites, hyponatremia and venostasis-associated thrombosis with pulmonary embolism. The patients did not experience tumour rupture or consumptive coagulopathy. Surgical resection was impossible because of steatosis of the non-affected liver. Orthotopic liver transplantation was identified as the only treatment option. The patient's renal function remained stable even though progressive morbidity and organ allocation were improbable according to the patient's lab model for end-stage liver disease(lab MELD) score. Therefore, non-standard exception status was approved by the European organ allocation network 'Eurotransplant'. The patient underwent successful orthotopic liver transplantation 16 mo after admission to our centre. Our case report indicates the underrepresentation of morbidity associated with refractory ascites in the lab MELD-based transplant allocation system, and it indicates the necessity of promptly applying for non-standard exception status to enable transplantation in patients with a severe clinical condition but low lab MELD score. Our case highlights the fact that liver transplantation should be considered early in patients with non-resectable, symptomatic benign liver tumours.Undine G Lange Julian N Bucher Markus B Schoenberg Christian Benzing Moritz Schmelzle Tanja Gradistanac Steffen Strocka Hans-Michael Hau Michael Bartels 2015World Journal of Transplantation2015,5,4:6
6Genome-wide transcriptome analysis reveals molecular pathways involved in leafy head formation of Chinese cabbage(Brassica rapa)显示文摘Chinese cabbage plants go through seedling and rosette stages before forming their leafy head.Chinese cabbage plants resemble pak-choi plants at their seedling stage,but in their rosette stage the leaves of Chinese cabbage differentiate,as they increase in size with shorter petioles.In order to understand the molecular pathways that play a role in leafy head formation,transcript abundance of young emerging leaves was profiled during development of two Chinese cabbage genotypes and a single pak-choi genotype.The two Chinese cabbages differed in many aspects,among others earliness,leaf size and shape,leaf numbers,and leafy head shape.Genome-wide transcriptome analysis clearly separated the seedling stages of all three genotypes together with the later stages from pak-choi,from the later developmental stages of both Chinese cabbages(rosette,folding,and heading).Weighted correlation network analysis and hierarchical clustering using Euclidean distances resulted in gene clusters with transcript abundance patterns distinguishing the two Chinese cabbages from pak-choi.Three clusters included genes with transcript abundance affected by both genotype and developmental stage,whereas two clusters showed only genotype effects.This included a genotype by developmental stage cluster highly enriched with the MapMan category photosynthesis,with high expression during rosette and folding in Chinese cabbages and low expression in the heading inner leaves that are not exposed to light.The other clusters contained many genes in the MapMan categories Cell,showing again differences between pak-choi and both Chinese cabbages.We discuss how this relates to the differences in leaf blade growth between Chinese cabbage and pak-choi,especially at the rosette stage.Overall,comparison of the transcriptome between leaves of two very different Chinese cabbages with pak-choi during plant development allowed the identification of specific gene categories associated with leafy head formation.XiaoXue Sun Ram Kumar Basnet Zhichun Yan Johan Bucher Chengcheng Cai Jianjun Zhao Guusje Bonnema 2019Horticulture Research2019,6,1:4
7Perforated duodenal diverticulum, a rare complication of a common pathology: A seven-patient case series显示文摘Duodenal diverticula (DD) are frequently encountered and are usually asymptomatic, with an incidence at autopsy of 22%. Perforation of DD is a rare complication (around 160 cases reported) with potentially dramatic consequences. However, little evidence regarding its treatment is available in the literature. The aim of this study was to review our experience of perforated DD, with a focus on surgical management. Between January 2001 and June 2011, all perforated DD were retrospectively reviewed at a single centre. Seven cases (5 women and 2 men; median age: 72.4 years old, rang: 48-91 years) were found. The median American Society of Anesthesiologists' score in this population was 3 (range: 3-4). The perforation was located in the second portion of duodenum (D2) in six patients and in the third portion (D3) in one patient. Six of these patients were treated surgically: five patients underwent DD resection with direct closure and one was treated by surgical drainage and laparostomy. One patient was treated conservatively. One patient died and one patient presented a leak that was successfully treated conservatively. The median hospital stay was 21.1 d (range: 15-30 d). Perforated DD is an uncommon presentation of a common pathology. Diverticular excision with direct closure seems to offer the best chance of survival and was associated with a low morbidity, even in fragile patients.Andrea Rossetti Nicolas Christian Buchs Pascal Bucher Stephane Dominguez Philippe Morel 2013World Journal of Gastrointestinal Surgery2013,5,3:3
8Apple whole genome sequences:recent advances and new prospects显示文摘In 2010,a major scientific milestone was achieved for tree fruit crops:publication of the first draft whole genome sequence(WGS)for apple(Malus domestica).This WGS,v1.0,was valuable as the initial reference for sequence information,fine mapping,gene discovery,variant discovery,and tool development.A new,high quality apple WGS,GDDH13 v1.1,was released in 2017 and now serves as the reference genome for apple.Over the past decade,these apple WGSs have had an enormous impact on our understanding of apple biological functioning,trait physiology and inheritance,leading to practical applications for improving this highly valued crop.Causal gene identities for phenotypes of fundamental and practical interest can today be discovered much more rapidly.Genome-wide polymorphisms at high genetic resolution are screened efficiently over hundreds to thousands of individuals with new insights into genetic relationships and pedigrees.High-density genetic maps are constructed efficiently and quantitative trait loci for valuable traits are readily associated with positional candidate genes and/or converted into diagnostic tests for breeders.We understand the species,geographical,and genomic origins of domesticated apple more precisely,as well as its relationship to wild relatives.The WGS has turbo-charged application of these classical research steps to crop improvement and drives innovative methods to achieve more durable,environmentally sound,productive,and consumer-desirable apple production.This review includes examples of basic and practical breakthroughs and challenges in using the apple WGSs.Recommendations for“what’s next”focus on necessary upgrades to the genome sequence data pool,as well as for use of the data,to reach new frontiers in genomics-based scientific understanding of apple.Cameron P.Peace Luca Bianco Michela Troggio Eric van de Weg Nicholas P.Howard Amandine Cornille Charles-Eric Durel Sean Myles ZoëMigicovsky Robert J.Schaffer Evelyne Costes Gennaro Fazio Hisayo Yamane Steve van Nocker Chris Gottschalk Fabrizio Costa David Chagné Xinzhong Zhang Andrea Patocchi Susan E.Gardiner Craig Hardner Satish Kumar Francois Laurens Etienne Bucher Dorrie Main Sook Jung Stijn Vanderzande 2019Horticulture Research2019,6,1:3
9Steric and electronic selectivity in the synthesis of Fe- 1,2,4,5-tetracyanobenzene (TCNB) complexes on Au(111): From topological confinement to bond formation显示文摘Shawulienu Kezilebieke Anis Amokrane Mauro Boero Sylvain Clai Mathieu Abel Jean-Pierre Bucher 2014Nano Research2014,7,6:2
10Appendix tumors in the era of laparoscopic appendectomy显示文摘P. Bucher Z. Mathe A. Demirag Ph. Morel 2004Surgical Endoscopy2004,,7:2
11An audit of surgical management of gastrointestinal stromal tumours (GIST)显示文摘P. Bucher J.-F. Egger P. Gervaz F. Ris D. Weintraub P. Villiger L.H. Buhler Ph. Morel 2005European Journal of Surgical Oncology2005,,3:2
12Segmental intrahepatic cholestasis as a technical complication of the transjugular intrahepatic porto-systemic shunt显示文摘BACKGROUND Segmental intrahepatic cholestasis caused by transjugular intrahepatic portosystemic shunt(TIPS)(SIC-T),is a rare complication of this technique and only referred by case reports.Thus,we conducted a systematic,retrospective analysis to provide evidence regarding prevalence and consequences of this TIPS-induced bile duct compression.AIM To assess prevalence and outcome of SIC-T in a large TIPS-cohort.METHODS In this retrospective cohort study,we screened the institutional databases for all consecutive patients that were treated by TIPS-placement or TIPS-revision between January 2005 and August 2013.We analyzed radiologic images for signs of biliary congestion.Cases that were indicative of SIC-T were reviewed by two independent radiologists and additional patient data was collected.Descriptive statistics of patient demographics,indications for TIPS and procedural details were registered.Logistic regression analysis was performed to identify predictors for the development of SIC-T.RESULTS We analyzed 135 cirrhotic patients who underwent TIPS(mean age 55 years,79%male gender).Etiology of cirrhosis was alcohol in most cases and indications for TIPS were mainly refractory ascites and recurrent variceal bleeding.TIPS revision was necessary in 31 patients.We identified 4 cases(2.9%)of SIC-T in direct proximity of the TIPS-stent.Diagnosis was confirmed by CT-scan,MRI or endoscopic retrograde cholangio pancreaticography(ERCP).In two patients TIPS was implanted via the right and in one through the medial hepatic vein.One patient received TIPS-prolongation by multiple revisions.Most patients were asymptomatic but one cholangitic abscess necessitated a transhepatic drain.Logistic regression analysis identified TIPS-placement other than from medial hepatic vein to right portal vein as risk factor(OR 21.0)for SIC-T.CONCLUSION SIC-T ads to(mostly late)complications in the interventional treatment of cirrhotic portal hypertensions and can lead to cholangitic abscesses.Patients,particularly with multiple interventions,should be screened for SIC-T.Julian Nikolaus Bucher Marcus Hollenbach Steffen Strocka Gereon Gaebelein Michael Moche Thorsten Kaiser Michael Bartels Albrecht Hoffmeister 2019World Journal of Gastroenterology2019,25,43:2
13室温下水-花岗岩作用时液相组分的演化显示文摘使用批反应器实验研究 2 1℃时花岗岩与蒸馏水的作用来探讨水 -岩作用以及液相随作用时间的地球化学演化。粒度为 1~ 2 mm,0 .5~ 1mm和 0 .2~ 0 .5 mm的花岗岩样品各 15 0 g和 75 0 ml纯水加入用聚丙烯做成的3个批反应器中进行反应试验。试验过程中用电动马达连续转动反应器。试验时间为 6 0 d。结果表明 ,液相主要是 Ca- (K) - HCO3型水或 K- (Ca) - HCO3型水。K+主要来自钾长石的溶解 ,Ca2 +主要与斜长石中钙长石组分的溶解有关。K+ 很容易从含 K+ 的原生矿物中被释放出来 ,同时 K+ 也容易从水中析出形成次生矿物。水中“Ca过剩”可以很好地用斜长石的不一致性溶解反应来解释 ,钙长石和钠长石悬殊的溶解度差异也是水中“Ca过剩”可能的原因之一。实验结果与用表面反应控制速率模式的解释及 Na+ 和 H+ 的表面竞争交换相一致。朱义年 刘辉利 Ingrid Stober Kurt Bucher 2003广西科学2003,10,3:2
14Transumbilical single-incision laparoscopic intracorporeal anastomosis for gastrojejunostomy:case report显示文摘Bucher P Pugin F Morel P 2009Surg Endosc2009,23,7:1
15A fast and efficient response surface approach for structural reliability problems显示文摘Bucher C G Bourgund U 1990Structural Safety1990,7,1:1
16Differentialeffects of short affinity tags on the crystallization of Pyro-coccus furiosus maltodextrin-binding protein显示文摘Bucher M H Evdokimov A G Waugh D S 2002ActaCrystallogr Biol Crystallogr2002,58,3:1
17Symbiotic phosphate transport in arbuscular myeorrhizas显示文摘KARANDSHOV V BUCHER M 2005Trends in Plant Sci enees2005,10,:1
18Isoniazid prophylaxis for tuberculosis in HIV infection:a meta analysis of randomized controlled trials显示文摘Bucher H C Griffith L Guyatt G 1999AIDS1999,13,:1
19Activation of plantdefense responses and sugar efflux by expression ofpyruvate decarboxylase in potato leaves 显示文摘Tadege M Bucher M Stahli W 1998Plant J1998,16,:1
20Prospective randomizedcontrolled trial:conventional versuspow ered phlebectomy显示文摘Aremu MA Mahendren B Bucher W 2004JVasc Surg2004,39,1:1
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