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1560篇 您的检索式:作者名="Shaw L"
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1氯吡格雷的使用与药物洗脱支架植入后远期临床结果显示文摘背景:近来的冠状动脉内药物洗脱支架研究提示,现行的抗血小板治疗方案可能并不足以预防后期支架内血栓形成。目的:于接受药物洗脱支架(drug-eluting stents,DESs)和裸金属支架(bare-metal stents,BMSs)治疗的冠状动脉病患者中评估氯吡格雷使用与患者远期结果的关系。设计、地点及患者:于连续患者中进行观察性研究。患者于2000年1月1日至2005年7月31日在杜克心脏治疗中心(一家位于北卡罗来纳州达累姆市的三级治疗中心)接受冠状动脉内支架治疗。于6、12、24个月时进行随访,直至2006年9月7日。研究人群包括4666例最初接受BMS(n=3165)或DES(n=1501)经皮冠状动脉介入治疗的患者。对随访6和12个月没有事件(没有死亡、心肌梗死或血管重建手术)的患者进行界标分析(landmark analysis)。在这些时间点上根据支架类型以及自我报告之氯吡格雷的使用情况将患者分为4组:DES使用氯吡格雷组、DES不用氯吡格雷组、BMS使用氯吡格雷组以及BMS不用氯吡格雷组。主要观测指标:随访24个月时死亡、非致命性心肌梗死以及死亡或心肌梗死之复合终点。结果:在6个月时没有事件发生的DES组患者(637例使用、579例未使用氯吡格雷)中,氯吡格雷的使用是随访24个月校正死亡率较低(使用2.0%比未使用5.3%;差异,-3.3%;95%CI,-6.3%至-0.3%;P=0.03)以及死亡或心肌梗死发生率较低(3.1%比7.2%;差异,-4.1%;95%CI,-7.6%至-0.6%;P=0.02)的显著预测指标。然而,在BMS组患者中(417例使用、1976例未用氯吡格雷),死亡(3.7%比4.5%;差异,-0.7%;95%CI,-2.9%至1.4%;P=0.50)以及死亡或心肌梗死发生率(5.5%比6.0%;差异,-0.5%;95%CI,-3.2%至2.2%;P:0.70)没有差异。在12个月随访没有事件发生的DES组患者(252例使用、276例未用氯吡格雷)中,氯吡格雷的使用依然可以预测24个月死亡(0%比3.5%;差异,-3.5%;95%CI,-5.9%至-1.1%;P=0.004)以及死亡或心肌梗死发生率(0%比4.5%;差异,-4.5%;95%CI,-7.1%至-1.9%;P〈0.001)较低。然而,在BMS组患者中(346例使用、1644例未用氯吡格雷),在死亡(3.3%比2.7%;差异,0.6%;95%CI,1.5%至2.8%;P=0.57)以及死亡或心肌梗死(4.7%比3.6%;差异,1.0%;95%CI,-1.6%至3.6%;P=0.44)发生方面,依然没有差异。结论:在接受DES治疗的患者中,延长氯吡格雷的使用可以使死亡以及死亡或心肌梗死的发生率下降。然而,使用氯吡格雷的适宜期限只能通过大型临床随机试验确定。Eric L Eisenstein, DBA Kevin J. Anstrom, PhD David F. Kong, MD Linda K. Shaw, MS Robert H. Tuttle, MSPH Daniel B. Mark, MD, MPH Judith M. Kramer, MD, MS Robert A. Harrington, MD David B. Matchar, MD David E. Kandzari, MD 1 Eric D. Peterson, MD, MPH Kevin A. Schulman, MD Robert M. Califf, MD 李呈亿(译) David E. Kandzari, MD 2007美国医学会杂志(中文版)2007,26,3:60
2基于蚁群优化算法与出租车GPS数据的公众出行路径优化显示文摘以出租车GPS采集的浮动车数据为依据,研究出租车驾驶员路径选择的认知及类蚂蚁的行为特征。根据城市道路功能等级与出租车的通行频率等信息素,建立出租车驾驶员路径选择信息素等级路网,并以此作为路网初始信息素,综合考虑路径通行时间、通行距离、路径信息素等级等多个因素,提出了基于蚁群优化算法的公众出行路径规划优化算法。以武汉市路网和浮动车为试验数据,将模型规划的道路与浮动车数据库中的轨迹进行了比较。结果表明:基于蚁群优化算法与出租车GPS数据的公众出行路径同出租车驾驶员选择的出行路径相似度很高,能为公众出行提供出租车驾驶员选择的行车路径。唐炉亮 常晓猛 李清泉 SHAW S L 2011中国公路学报2011,24,2:35
3一种基于朴素贝叶斯分类的车道数量探测显示文摘针对浮动车数据采集成本低、采集速度快、覆盖范围广、蕴含丰富道路信息等特点,提出了一种基于浮动车数据的城市车道数量信息快速获取方法。该方法首先根据浮动车数据的空间分布特征,利用基于Delaunay三角网的密度聚类方法对数据进行优选;然后通过探测浮动车数据的覆盖宽度及其在道路横截面的分布状态,构建朴素贝叶斯分类器;最后采用朴素贝叶斯分类方法确定目标路段的车道数量。结果表明:该方法可以从低精度浮动车数据中快速获取车道数量信息,提取精度达到76.3%。唐炉亮 杨雪 阚子涵 王雪浩 李清泉 SHAW S L 2016中国公路学报2016,29,3:13
4Bovine immunoglobulin protein isolates for the nutritional management of enteropathy显示文摘The gastrointestinal tract is responsible for a multitude of digestive and immune functions which depend upon the balanced interaction of the intestinal microbiota, diet, gut barrier function, and mucosal immune response. Disruptions in one or more of these factors can lead to intestinal disorders or enteropathies which are characterized by intestinal inflammation, increased gut permeability, and reduced capacity to absorb nutrients. Enteropathy is frequently associated with human immunodeficiency virus(HIV) infection, inflammatory bowel disease, autoimmune enteropathy, radiation enteritis, and irritable bowel syndrome(IBS), where pathologic changes in the intestinal tract lead to abdominal discomfort, bloating, abnormal bowel function(e.g., diarrhea, urgency, constipation and malabsorption). Unfortunately, effective therapies for the management ofenteropathy and restoring intestinal health are still not available. An accumulating body of preclinical studies has demonstrated that oral administration of plasmaor serum-derived protein concentrates containing high levels of immunoglobulins can improve weight, normalize gut barrier function, and reduce the severity of enteropathy in animal models. Recent studies in humans, using serum-derived bovine immunoglobulin/protein isolate, demonstrate that such protein preparations are safe and improve symptoms, nutritional status, and various biomarkers associated with enteropathy. Benefits have been shown in patients with HIV infection or diarrhea-predominant IBS. This review summarizes preclinical and clinical studies with plasma/serum protein concentrates and describes the effects on host nutrition, intestinal function, and markers of intestinal inflammation. It supports the concept that immunoglobulin-containing protein preparations may offer a new strategy for restoring functional homeostasis in the intestinal tract of patients with enteropathy.Bryon W Petschow Anthony T Blikslager Eric M Weaver Joy M Campbell Javier Polo Audrey L Shaw Bruce P Burnett Gerald L Klein J Marc Rhoads 2014World Journal of Gastroenterology2014,20,33:2
5Activation characteristics of candidate structural materials for a near-term Indian fusion reactor and the impact of their impurities on design considerations显示文摘Activation analyses play a vital role in nuclear reactor design.Activation analyses,along with nuclear analyses,provide important information for nuclear safety and maintenance strategies.Activation analyses also help in the selection of materials for a nuclear reactor,by providing the radioactivity and dose rate levels after irradiation.This information is important to help define maintenance activity for different parts of the reactor,and to plan decommissioning and radioactive waste disposal strategies.The study of activation analyses of candidate structural materials for near-term fusion reactors or ITER is equally essential,due to the presence of a highenergy neutron environment which makes decisive demands on material selection.This study comprises two parts; in the first part the activation characteristics,in a fusion radiation environment,of several elements which are widely present in structural materials,are studied.It reveals that the presence of a few specific elements in a material can diminish its feasibility for use in the nuclear environment.The second part of the study concentrates on activation analyses of candidate structural materials for near-term fusion reactors and their comparison in fusion radiation conditions.The structural materials selected for this study,i.e.India-specific Reduced Activation Ferritic-Martensitic steel(IN-RAFMS),P91-grade steel,stainless steel 316 LN ITER-grade(SS-316 LN-IG),stainless steel 316 L and stainless steel 304,are candidates for use in ITER either in vessel components or test blanket systems.Tungsten is also included in this study because of its use for ITER plasma-facing components.The study is carried out using the reference parameters of the ITER fusion reactor.The activation characteristics of the materials are assessed considering the irradiation at an ITER equatorial port.The presence of elements like Nb,Mo,Co and Ta in a structural material enhance the activity level as well as the dose level,which has an impact on design considerations.IN-RAFMS was shown to be a more effective low-activation material than SS-316 LN-IG.H L SWAMI C DANANI A K SHAW 2018Plasma Science and Technology2018,20,6:2
6Applications of chalcogenide glass optical fibers 显示文摘SANGHERA J S SHAW L B AGGARWAL I D 2002C R Chimie2002,5,:1
7Cellular proteins in influenza virus particles显示文摘Shaw Megan L Stone Kathryn L Colangelo Christopher M 2008PLoS pathogens2008,4,10:1
8The dependency of microstructure and properties of nanostructured coatings on plasma spray conditions 显示文摘Shaw L L Goberman D Ren R 2000Surf Coat Technol2000,130,:1
9Edible coatings for individual frozen meat portions显示文摘Shaw C P Secrist J L 1977U S Army Natick Research & Development Command Food Engineering Laboratory Natick MA1977,,:1
10Local inhomogeneity in asymmetric simple exclusion processes with extended objects 显示文摘SHAW L B KOLOMEISKY A B LEE K H 2004J Phys A2004,37,:1
11JMater Sci显示文摘Shaw L Abbaschian R 199530:8491995,30,:1
12Newcas- tle disease virus (NDV)-based assay demonstrates in- terferon-antagonist activity for the NDV V protein and the Nipah virus V,W,and C proteins显示文摘Park M S Shaw M L Munoz-Jordan J 2003J Virol2003,77,2:1
13Microarray based comparative genomic hybridisation ( array - CGH) detects submicro- scopic chromosomal deletions and duplications in patients with learn- ing disability/mental retardation and dysmorphic features 显示文摘Shaw -Smith C Redon R Rickman L 2004J Med Genet2004,41,4:1
14Human fallopi- an tube epithelium constitutively expresses integrin endo- metrial receptivity markers: no evidence for a tubal im- plantation window显示文摘Brown J K Shaw J L Critchley H O 2012Mol Hum Reprod2012,18,3:1
15Bibliographic and web citations: what is the difference? 显示文摘Vaughan L Shaw D 2003JASIST2003,54,14:1
16Seed storage oil mobi lization is important but not essential for germination or seedling establishment in Arabidopsis显示文摘Kelly A A Quettier A L Shaw E 2011Plant Physiology2011,157,2:1
17Forecasting Field Defect Rates Using a Combined Time-Based Approach:A Case Study ofOpenBSD 显示文摘L P L HERBSLEB J SHAW M 2005Proc of the 16th Int''l Symp on Software Reliability Engineering2005,12,2:1
18Instrumental testing of tea by combining the responses of electronic nose and tongue显示文摘BANERJEE R TUDU B SHAW L 2012J Food Eng2012,110,3:1
19Crack tip finite elements are unnecessary 显示文摘Henshe|l R D Shaw K G 1975International Journal for Numerical Methods in Engineering1975,,9:1
20A standardized definition of ischemic cardiomyopathy for use in clinical research显示文摘Felker G M Shaw L K O'Connor C M 2002J Am Coil Cardiol2002,39,2:1
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