维普中文期刊产品整合服务
567篇 您的检索式:作者名="Valli"
    题名 作者 年代 出处 被引量
1喀喇昆仑断裂的变形特征及构造演化显示文摘喀喇昆仑断裂的变形特征、形成时代、构造演化以及它的构造意义一直存在着争议。在喀喇昆仑断裂东南段阿伊拉日居山地区,沿断裂出露具右旋剪切应变的糜棱岩和糜棱岩化片麻岩-花岗岩,显微构造研究表明其存在高温右旋剪切变形特征,并伴随淡色同构造花岗岩的产生,同构造结晶锆石所记录的U-Pb同位素年龄,暗示了喀喇昆仑断裂的形成时代在23-25Ma以前,其连续变形作用持续到-12Ma,之后伴随阿伊拉日居山的快速隆升以及噶尔盆地开始形成。综合分析表明喀喇昆仑断裂生长过程可能是由南东向北西扩展的过程,是印度板块与欧亚大陆持续碰撞的结果。断裂的累积位移量至少为280km,其长期平均滑移速率约为11mm/a。通过块体间运动学分析,表明在-23-25Ma以后青藏高原物质以约16.2mmn/a的速率向-N108°方向挤出。李海兵 Franck Valli 许志琴 杨经绥 Paul Tapponnier Robin Lacassin 陈松永 戚学祥 Marie-Luce Chevalier 2006中国地质2006,33,2:64
2喀喇昆仑断裂的形成时代:锆石SHRIMP U-Pb年龄的制约显示文摘喀喇昆仑断裂的形成时代对青藏高原形成演化、变形过程的研究具有重要意义.在断裂东南段阿伊拉日居山地区,沿断裂出露具高温右旋剪切应变特征的糜棱岩和糜棱岩化片麻岩-花岗岩,因此,利用变形岩石中锆石的SHRIMP U-Pb年龄来制约断裂的形成时代和变形历史.变形岩石中同构造结晶锆石的U-Pb同位素年龄,暗示了喀喇昆仑断裂的形成时代至少为距今约27Ma以前,比前人观点至少早约10Ma;大规模的高温右旋剪切活动至少在距今27~20Ma期间,并且伴随同构造淡色花岗岩的产生;剪切变形过程中伴随大量热液流体作用时限至少在距今25-13Ma期间.喀喇昆仑断裂的生长可能是由南东向北西扩展的过程,是印度板块与欧亚大陆持续碰撞的结果.李海兵 Franck Valli 刘敦一 许志琴 杨经绥 Nicolas Arnaud Paul Tapponnier Robin Lacassin 陈松永 戚学祥 2007科学通报2007,52,4:26
3Advanced gastric cancer:what we know and what we stillhave to learn显示文摘Gastric cancer is a common neoplastic disease and, more precisely, is the third leading cause of cancer death in the world, with differences amongst geographic areas. The definition of advanced gastric cancer is still debated. Different stadiating systems lead to slightly different stadiation of the disease, thus leading to variations between the single countries in the treatment and outcomes. In the present review all the possibilities of treatment for advanced gastric cancer have been analyzed. Surgery, the cornerstone of treatment for advanced gastric cancer, is analyzed first, followed by an investigation of the different forms and drugs of chemotherapy and radiotherapy. New frontiers in treatment suggest the growing consideration for intraperitoneal administration of chemotherapeutics and combination of traditional drugs with new ones. Moreover, the necessity to prevent the relapse of the disease leads to the consideration of administering intraperitoneal chemotherapy earlier in the therapeutical algorithm.Federico Coccolini Giulia Montori Marco Ceresoli Simona Cima Maria Carla Valli Gabriela E Nita Arianna Heyer Fausto Catena Luca Ansaloni 2016World Journal of Gastroenterology2016,22,3:25
4喀喇昆仑断裂带走滑过程中伴随的快速隆升作用:热年代学证据显示文摘喀喇昆仑断裂带是青藏高原西部的一条大型右旋走滑断裂带,它是喜马拉雅山脉西段北侧重要的地质边界。本文在岩石学、变形构造的研究基础上,对喀喇昆仑断裂带东南段阿伊拉日居山—噶尔盆地地区的喀喇昆仑韧性剪切带中变质岩石的同构造矿物进行了^(40)Ar/^(39)Ar热年代学研究。显微构造研究表明,剪切带中的矿物记录了从高温(>600℃)到低温(<250℃)条件下的连续变形,表现为近水平的右旋剪切运动转变成斜向的右旋正滑,使绿片岩相的变形作用叠加在中-高温变形之上,暗示出走滑过程中存在隆升作用,热年代学结果显示其连续剪切变形作用从早中新世以来至少持续到4Ma,并且出现三个快速冷却阶段:第一个快速冷却阶段为从25~22Ma 到21~18Ma 期间,可能代表的是浅部高温剪切过程中变形局部停止或减慢的过程;第二个快速冷却时期为从15Ma 到12~10Ma,是喀喇昆仑断裂带走滑过程中,阿伊拉日居山的快速隆升、噶尔盆地开始形成以及主要河流深切过程阶段;9Ma 以来是第三个快速冷却过程,使阿伊拉日居山脉进一步快速隆升、噶尔盆地定形过程。根据不同年代地表地貌特征的右旋错位距离以及不同层次变形特征,估算出喀喇昆仑断裂带长期滑移速率为8~10mm/a,伴随的隆升速率为1mm/a。从显微构造和热年代学证据表明,晚第四纪以来该断裂经历了强烈的右旋走滑运动的同时伴随强烈的隆升作用。李海兵 VALLI Franck ARNAUD Nicolas 陈松永 许志琴 TAPPONNIER Paul LACASSIN Robin 司家亮 邱祝礼 2008岩石学报2008,24,7:14
5河南省耐多药与非耐多药肺结核病患者9年生存比较分析显示文摘目的比较河南省耐多药结核病(MDR—TB)和非MDR—TB患者9年后生存情况。方法利用2001年WHO结核病耐药监测数据库中河南省数据,并随机抽取入选病例。于2010年使用调查县结核病防治部门采用问卷访谈形式登记的患者资料、治疗记录等,调查MDR-TB和非MDR-TB患者的生存情况,数据分析采用单因素和多因素logistic统计方法。结果MDR.TB患者9年后的病死率是非MDR-TB患者的2倍,两组间差异有统计学意义。与非MDR-TB相比,MDR-TB患者更多死于结核病。影响结核病患者生存的主要危险因素是年龄、耐多药状态、复治、曾经住院治疗和治疗时间〉1年。与非MDR—TB患者相比,MDR-TB患者平均生存时间减少1.3年。结论MDR-TB对结核病患者的生存有显著影响,特别是MDR—TB的青壮年患者。孙燕妮 王国杰 甄新安 刘占峰 David Harley Gillian Hall Hassan Vally Adrian Sleigh 2013中华流行病学杂志2013,34,2:8
6Antimicrobial potential of Actinomycetes species isolated from marine environment显示文摘Objective:To evaluate the antimicrobial activity of Actinomycetes species isolated from marine environment.Methods:Twenty one strains of Actinomyceteswere isolated from samples of Royapuram, Muttukadu, Mahabalipuram sea shores and Adyar estuary. Preliminary screening was done using cross-streak method against two gram-positive and eight gram-negative bacteria.The most potent strains C11 and C12 were selected from which antibacterial substances were extracted. The antibacterial activities of the extracts were performed using Kirby-Bauer disc diffusion method. Molecular identification of those isolates was done.Results:All those twenty one isolates were active against at least one of the test organisms. Morphological characters were recorded. C11 showed activity againstStaphylococcusspecies(13.0暲0.5 mm),Vibrio harveyi(11.0暲0.2 mm),Pseudomonas species(12.0暲0.3 mm). C12 showed activity against Staphylococcus species(16.0暲0.4 mm),Bacillus subtilis(11.0暲0.2 mm),Vibrio harveyi(9.0暲0.1 mm),Pseudomonas species(10.0暲0.2 mm). 16S rRNA pattern strongly suggested that C11 and C12 strains were Streptomyces species.Conclusions:The results of the present investigation reveal that the marineActinomycetesfrom coastal environment are the potent source of novel antibiotics.Isolation, characterization and study of Actinom ycetescan be useful in discovery of novel species of Actinomy cetes.Valli S Suvathi Sugasini S Aysha OS Nirmala P Vinoth Kumar P Reena A 2012Asian Pacific Journal of Tropical Biomedicine2012,2,6:8
7Initial movement of the Karakorum Fault in western Tibet:constraints from SHRIMP U-Pb dating of zircons显示文摘The Karakorum Fault zone(KFZ)plays an important role in understanding the formation,evolvement and deformation of the Tibetan Plateau.The high-T dextral shearing metamorphic rocks,e.g.,mylonites or mylonitized gneisses-granites,locally crop out along the southeastern part of the KFZ in the Ayila Ri’gyüRange area.The SHRIMP U-Pb dating of the syn-kinematic crystallized zircons indicates that the initial age of the KFZ is^27 Ma,~10 Ma older than previous results.The extensive high-T dextral shearing along the KFZ started at least at 27-20 Ma,accompanied by the syn-kinematic emplacement of leuco-granites.Deformation and concomitant fluid circulation during shearing most likely occurred as early as at 25-13 Ma.The KFZ probably grew from southeast to northwest along the fault as a result of continuous convergence between the India plate and Eurasia plate.LI HaiBing Franck VALLI LIU DunYi XU ZhiQin YANG JingSui Nicolas ARNAUD Paul TAPPONNIER Robin LACASSIN CHEN SongYong QI xuexiang 2007Chinese Science Bulletin2007,52,8:6
8河南省耐多药和非耐多药结核病对患者社会生活影响的比较显示文摘目的调查研究并比较河南省耐多药结核病(MDR-TB)和非耐多药结核病(非MDR-TB)对患者社会生活的影响,为制订综合有效的结核病防治策略提供科学依据。方法利用2001年河南省参加世界卫生组织结核病耐药监测调查患者数据库,采用Excel生成随机数字表方法随机抽取入选患者。使用问卷面对面访谈形式于2010年对MDR-TB患者和非MDR-TB患者的社会经济状况及结核病相关情况进行访谈性调查研究;共调查访谈234例TB患者。按照对异烟肼和利福平的耐药状态分为暴露组(MDR-TB患者组)86例和对照组(非MDR-TB患者组)148例。对收集的数据进行t检验和卡方检验。结果暴露组(70.9%,61/86)对患结核病的态度比对照组(52.4%,77/148)明显悲观,两组间差异有统计学意义(χ2=8.58,P=0.01)。与对照组比较(2.0%,3/148),更多暴露组患者在患病期间依旧外出打工(9.3%,8/86),两组间差异有统计学意义(χ2=6.43,P=0.01)。结核病治愈后暴露组外出打工的比例(8.8%,7/80)明显低于对照组(24.0%,35/146),两组间差异有统计学意义(χ2=7.92,P<0.01)。与对照组相比(18.9%,28/148),更多暴露组患者患结核病后仍吸烟(34.9%,30/86),两组间差异有统计学意义(χ2=7.44,P<0.01)。更高比率的暴露组患者报告其未来生活计划被患结核病所改变(45.8%,33/72),相比之下23.9%(27/113)的对照组报告其未来生活计划被改变,两组间差异有统计学意义(χ2=11.67,P<0.01)。结论与对照组患者相比,暴露组患者在患病后的社会生活受到明显影响。因此,建议为更加有效的控制结核病尤其是耐多药结核病,应进一步加强对MDR-TB患者的社会支持。孙燕妮 王国杰 甄新安 刘占峰 Harley David Hall Gillian Vally Hassan Sleigh Adrian 2013中国防痨杂志2013,35,1:5
9Biogenesis of antibacterial silver nanoparticles using the endophytic bacterium Bacillus cereus isolated from Garcinia xanthochymus显示文摘Objective:To synthesize the ecofriendly nanoparticles,which is viewed as an alternative to the chemical method which initiated the use of microbes like bacteria and fungi in their synthesis.Methods:The current study uses the endophytic bacterium Bacillus cereus isolated from the Garcinia xanthochymus to synthesize the silver nanoparticles(AgNPs).The AgNPs were synthesized by reduction of silver nitrate solution by the endophytic bacterium after incubation for 3-5 d at room temperature.The synthesis was initially observed by colour change from pale white to brown which was confirmed by UV-Vis spectroscopy.The AgNPs were further characterized using FTIR,SEM-EDX and TEM analyses.Results:The synthesized nanoparticles were found to he spherical with the size in the range of 20-40 nm which showed a slight aggregation.The energy-dispersive spectra of the nanoparticle dispersion confirmed the presence of elemental silver.The AgNPs were found to have antibacterial activity against a few pathogenic bacteria like Escherichia coli,Pseudomonas aeruginosa,Staphylococcus aureus,Salmonella typhi and Klebsiella pneumoniae.Conclusions:The endophytic bacteria identified as Bacillus cereus was able to synthesize silver nanoparticles with potential antibacterial activity.Swetha Sunkar C Valli Nachiyar 2012Asian Pacific Journal of Tropical Biomedicine2012,2,12:5
10河南省耐多药和非耐多药结核病患者经济状况及相关费用的比较显示文摘目的调查研究并比较河南省耐多药结核病(multidrug-resistant tuberculosis,MDR-TB)和非耐多药结核病(非MDR-TB)患者社会经济情况及相关治疗花费。方法利用2001年河南省参加世界卫生组织结核病耐药监测调查患者数据库,采用Excel生成随机数字表方法随机抽取入选病例。使用问卷访谈形式于2010年对MDR-TB患者和非MDR-TB患者的社会经济状况及结核病相关治疗花费进行访谈性调查研究;共调查访谈234例患者。按照对异烟肼和利福平的耐药状态分为暴露组(MDR-TB患者组)86例和对照组(非MDR-TB患者组)148例。对收集的数据进行t检验和卡方检验。结果暴露组MDR-TB患者家庭年收入低于5000元的比例(55.3%,47/85)明显高于对照组非MDR-TB患者(38.1%,56/147),两组间差异有统计学意义(χ2=6.9,P=0.031)。与同社区其他居民家庭经济情况进行比较:暴露组患者家庭经济情况位于同社区家庭经济水平下1/3等的比例为47.1%(40/85),明显高于对照组32.9%(48/146),两组间差异有统计学意义(χ2=4.6,P=0.032)。与对照组比较,暴露组家庭≤3间的可住房间数的比例明显偏高,分别为37.8%(31/82)和17.9%(26/145),两组间差异有统计学意义(χ2=11.0,P=0.004)。更高比例的暴露组家庭因结核病治疗借款,占19.0%(15/79),对照组占4.5%(6/134),且不能按时偿还(χ2=13.4,P=0.001)。与非MDR-TB患者相比,更高比例的MDR-TB患者在结核病相关治疗花费上支付10 000元以上分别30.2%(26/86)和9.5%(14/148),两组间差异有统计学意义(χ2=19.7,P=0.001)。结论结核病对MDR-TB患者和非MDR-TB患者的社会经济情况有不同程度影响。相比非MDR-TB患者,MDR-TB患者家庭更加贫穷,同时在治疗花费上支出较大。孙燕妮 王国杰 甄新安 刘占峰 Harley David Hall Gillian Vally Hassan Sleigh Adrian 2012中国防痨杂志2012,34,12:4
11Profunda femoris artery pseudoaneurysm following revision for femoral shaft fracture nonunion显示文摘Femoral artery pseudoaneurysms(FAPs) have been described following internal fixation of intertrocantheric, subtrocantheric and intracapsular femoral neck fractures as well as core decompression of the femoral head. The diagnosis of FAP is usually delayed because of non-specific clinical features like pain, haematoma,swelling, occasional fever and unexplained anaemia.Because of the insidious onset and of the possible delayed presentation of pseudoaneurysms, orthopaedic and trauma surgeons should be aware of this complication. We report a case of Profunda Femoris arterial branch pseudoaneurysm, diagnosed in a 40-year-old male 4 wk after revision with Kuntscher intramedullary nail of a femoral shaft nonunion. The diagnosis was achieved by computed tomography angiography and the lesion was effectively managed by endovascular repair. The specific literature and suggestions for treatment are discussed in the paper.Federico Valli Marco GA Teli Marco Innocenti Ruggero Vercelli Domenico Prestamburgo 2013World Journal of Orthopedics2013,4,3:3
12中国和印度的结构变化与经济发展显示文摘文章对1978年以来中国经济和1992年以来印度经济的快速增长做一比较,认为两国经济的发展模式和结构变化明显不同,但都利用了'经济相对落后'的优势和'福特增长模式'的一些因素。中国从20世纪80年代开始进行经济改革,国内市场发展迅猛,90年代中期以后工业产品迅速打入国际市场,因此推动了经济结构上预期的深入转变。然而,中国大部分中高科技产品的出口得益于合资企业。虽然近几年印度在软件、钢铁、汽车和药品等领域正在增加世界市场上的占有率,但是其经济结构的转变较为平稳,进入国际市场的速度较为缓慢。印度拥有众多的小型企业和规模庞大的非正规经济部门,因此相对于中国而言,从规模经济和'福特增长模式'的第三次浪潮中收益较小。不过由于近期经济增长过快,两国都出现一些负外部性,尤其在中国,表现为收入差距扩大、环境污染、城市拥挤。Vittorio Valli(著) Donatella Saccone(著) 于晓言(译) 2011经济资料译丛2011,,4:2
13Over-the-scope-clip closure of long lasting gastrocutaneous fistula after percutaneous endoscopic gastrostomy tube removal in immunocompromised patients:A single center case series显示文摘Over-the-scope-clips(OTSC~?) have been shown to be an effective and safe endoscopic treatment option for the closure of gastrointestinal perforations, leakages and fistulae. Indications for endoscopic OTSC~? treatment have grown in number and also include gastro cutaneous fistula(GCF) after percutaneous endoscopic gastrostomy(PEG) tube removal. Non-healing GCF is a rare complication after removal of PEG tubes and may especially develop in immunosuppressed patients with multiple comorbidities. There is growing evidence in the literature that OTSC~? closure of GCF after PEG tube removal is emerging as an effective, simple and safe endoscopic treatment option. However current evidence is limited to the geriatric population and short standing GCF, while information on closure of long standing GCF after PEG tube removal in a younger population with significant comorbidities is lacking. In this retrospective single-center case-series we report on five patients undergoing OTSC~? closure of chronic GCF after PEG tube removal. Four out of five patients were afflicted with long lasting, symptomatic fistulae. All five patients suffered from chronic disease associated with a catabolic metabolism(cystic fibrosis, chemotherapy for neoplasia, liver cirrhosis). The mean patient age was 43 years. The mean dwell time of PEG tubes in all five patients was 808 d. PEG tube dwell time was shortest in patient 5(21 d). The mean duration from PEG tube removal to fistula closure in patients 1-4 was 360 d(range 144-850 d). The intervention was welltolerated by all patients and no adverse events occured. Successful immediate and long-term fistula closure was accomplished in all five patients. This single center case series is the first to show successful endoscopic OTSC~? closure of long lasting GCF in five consecutive middleaged patients with significant comorbidities. Endoscopic closure of chronic persistent GCF after PEG tube removal using an OTSC~? was achieved in all patients with no immediate or long-term complications. OTSC~? is a promising endoscopic treatment option for this condition with a potentially high immediate and long term success rate in patients with multiple comorbidities.Henriette Heinrich Christoph Gubler Piero V Valli 2017World Journal of Gastrointestinal Endoscopy2017,9,2:2
14Benign intratesticular schwannoma:a rare finding显示文摘神经鞘瘤是一个周围神经瘤,偶尔在生殖泌尿道定位了。我们在一个 79 岁的病人描述了睾丸内神经鞘瘤的一个极其稀罕的盒子。Maria Chiara Sighinolfi Alessandro Mofferdin Stefano S.De Stefani Antonio Celia Salvatore Micali Giovanni Saredi Giulio Rossi Riccardo Valli Giampaolo Bianchi 2006Asian Journal of Andrology2006,8,1:2
15Manganese (II) oxidation by manganese peroxidase from the basidiomyeete Phanerochaete chrysosporium kinetic mechanism and role of chelators 显示文摘WariishiI H Valli K Gold M H 1992Journal of Biological Chemistry1992,267,23:1
16Caudal morphine for postoperative analgesia in infants and children: a report of 138 cases显示文摘Vally RD Bailey AG 1991Anesth Analg1991,72,1:1
17High cell density cultivation of probiotics and lactic acid produetion显示文摘Chiara schiraldi Vincenzo Adduci Vivien Valli 2003Bi- otechnology and Bioengineering2003,83,2:1
18Changes in Diabetes Self-Care Behaviors Make a Difference in Glycemic Control:The Diabetes Stages of Change(Disc)Study显示文摘Jones H Edwards L Vallis T M 0,,3:1
19Target mimicry provides a new mechanism for regulation of mi- croRNA activity显示文摘FRANCO-ZORRILLA J M VALLI A TODESCO M 2007Nature Genetics2007,39,8:1
20Linear stability analysis of the three-dimensional thermally-driven ocean circulation:application to interdecadal oscillations显示文摘HUCK T VALLIS G K 2001Tellus A2001,53,4:1
返回顶部 每页显示:
共29页 首页 上一页 第1页 下一页 末页 /29 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费