维普中文期刊产品整合服务
89篇 您的检索式:作者名="D.O."
    题名 作者 年代 出处 被引量
1射血分数正常心力衰竭的患病率和临床结局的变化趋势显示文摘Background: The prevalence of heart failure with preserved ejection fraction may be changing as a result of changes in population demographics and in the prevalence and treatment of risk factors for heart failure. Changes in the prevalence of heart failure with preserved ejection fraction may contribute to changes in the natural history of heart failure. We performed a study to define secular trends in the prevalence of heart failure with preserved ejection fraction among patients at a single institution over a 15-year period. Methods: We studied all consecutive patients hospitalized with decompensated heart failure at Mayo Clinic Hospitals in Olmsted County, Minnesota, from 1987 through 2001. We classified patients as having either preserved or reduced ejection fraction. The patients were also classified as community patients(Olmsted County residents) or referral patients. Secular trends in the type of heart failure, associated cardiovascular disease, and survival were defined. Results: A total of 6076 patients with heart failure were discharged over the 15-year period; data on ejection fraction were available for 4596 of these patients(76 percent). Of these, 53 percent had a reduced ejection fraction and 47 percent had a preserved ejection fraction. The proportion of patients with the diagnosis of heart failure with preserved ejection fraction increased over time and was significantly higher among community patients than among referral patients(55 percent vs. 45 percent). The prevalence rates of hypertension, atrial fibrillation, and diabetes among patients with heart failure increased significantly over time. Survival was slightly better among patients with preserved ejection fraction(adjusted hazard ratio for death, 0.96; P=0.01). Survival improved over time for those with reduced ejection fraction but not for those with preserved ejection fraction. Conclusions: The prevalence of heart failure with preserved ejection fraction increased over a 15-year period, while the rate of death from this disorder remained unchanged. These trends underscore the importance of this growing public health problem.Owan T.E. Hodge D.O. Herges R.M. M.M. Redfield 马超 2006世界核心医学期刊文摘(心脏病学分册)2006,,12:11
2A bonded-particle model for rock显示文摘D.O. Potyondy P.A. Cundall 2004International Journal of Rock Mechanics and Mining Sciences2004,,8:9
3权力与建筑显示文摘在人类建筑历史的发展中,权力对建筑的影响随处可见,建筑从某一方面反映了权力的意志。俄罗斯历史学家D.O.什维德科夫斯基院士分析了苏联时期的领导人对建筑的态度,以及苏联建筑在发展进程中与他们的联系,介绍了苏联建筑发展的脉络。莫斯科市长与艺术家部分则介绍了在今日俄罗斯首都莫斯科的建筑发展中权力与建筑及环境艺术的新关系和新的发展趋势。D.O.什维德科夫斯基 韩林飞 1999世界建筑1999,,1:8
4加拿大地下矿山聚合物喷层支护方法的研究概况(一)显示文摘用聚合物喷层支护法部分或全部取代传统的岩层支护方法已日益引起加拿大采矿界的关注。从聚合物化学制品到水基胶结材料 ,已开发出种类繁多的喷层材料并在地下采矿工业中得到广泛应用。经过近 10年的开发 ,有关此类表面支护介质的性能得到了以下几点共识 :大范围的健康和安全评价表明 ,大多数材料在地下使用是安全可行的 ;它们具有岩层支护的巨大潜力 ,相当或大于传统支护方法的支护能力 ,如 ,锚杆 -金属网或喷射混凝土法的支护能力 ;它可迅速发挥效能和几乎立即产生支护能力 ,可为地下矿山业主提供可观的生产和成本效益。本文将评述加拿大采矿业当前可以利用的各种喷射支护材料及其开发历程 ,并将概述其支护、健康和安全。J.F.阿奇博尔德 D.O.德加内 谭明乾 王维德 2002国外金属矿山2002,27,5:4
5A bonded-particle model for rock显示文摘D.O. Potyondy P.A. Cundall 2004International Journal of Rock Mechanics and Mining Sciences2004,,8:4
6俄罗斯建筑形象的演变显示文摘本文叙述了从公元5世纪到20世纪初俄罗斯建筑形象演变过程及各时期建筑风格特色,从社会、历史、文化角度分析了东西方文化对俄罗斯建筑形象演变产生的影响。D.O.什维德科夫斯基 韩林飞 陈昌明 1999世界建筑1999,,1:3
7Preparation of angiotensin I converting enzyme inhibitor from corn gluten显示文摘H.J. Suh J.H. Whang Y.S. Kim S.H. Bae D.O. Noh 2002Process Biochemistry2002,,8:2
8MICA脱落与肿瘤免疫逃逸:肿瘤免疫治疗新靶标和新策略显示文摘MHCⅠ类链相关分子(MICA)是自然杀伤细胞和T细胞上NKG2D受体的主要活化性配体,在上皮源性肿瘤细胞表面过表达。NKG2D与MICA的结合可有效刺激效应细胞对肿瘤细胞的细胞毒作用。然而,临床观察表明,MICA会在肿瘤的增殖过程中脱落而形成可溶性MICA(s MICA),这被认为是肿瘤细胞逃脱NKG2D介导的免疫监视的重要原因。综述在肿瘤细胞中MICA和NKG2D的表达与功能、s MICA的形成与肿瘤免疫逃逸的关联以及介导MICA脱落的机制,由此探讨肿瘤免疫治疗的新靶点和新策略。赵欣 ACHEAMPONG D.O. 张娟 王旻 2014药学进展2014,38,12:2
9加拿大地下矿山聚合物喷层支护方法的研究概况(二)显示文摘J.F.阿奇博尔德 D.O.德加内 谭明乾 王维德 2002国外金属矿山2002,27,6:2
10小腿截肢残端假体的实验研究显示文摘目的:利用残端假体增加下肢截肢后骨残端的横截面积,降低负重时截肢残端皮肤单位面积上的压强,减少由于穿戴假肢所引起的并发症。重建离断肌肉的下位附着点,使之保持肌肉的合适初长和原有肌力,并维持肌力平衡,防止关节挛缩畸形,以保持截肢平面上位关节的正常活动,提高截肢肢体穿戴假肢后的功能。方法:山羊10只,随机分为2组,左小腿膝下截肢后,分为对照组和假体放置组。假体采用超高分子聚乙烯材料制成,呈蘑菇状外观。术后穿戴假肢开始负重。观察站立和行走的时间,残端皮肤情况,并进行骨残端组织学检查。结果:假体放置组羊能在截肢术后较早穿戴假肢,负重站立和行走,无残端皮肤溃疡。假体与残端骨接合紧密,肌腱与假体连接良好,坚固。未发现任何假体放置后的不良反应和并发症。结论:截肢后骨残端安放假体能明显增加骨残端横截面积,很好保持残肢末端的圆锥形,加之假体材料的缓冲作用,明显减少截肢骨残端与假肢接受腔间软组织单位面积上的压强,使之能较早安装假肢,减少穿戴假肢所引起的并发症,增加假肢穿戴后的肢体功能。赵文汝 Gregory A.Zych D.O. 王秀汝 周庆芬 索广文 2003中国康复医学杂志2003,18,9:2
11Subacute Ruminal Acidosis Induces Ruminal Lipopolysaccharide Endotoxin Release and Triggers an Inflammatory Response显示文摘G.N. Gozho J.C. Plaizier D.O. Krause A.D. Kennedy K.M. Wittenberg 2005Journal of Dairy Science2005,,4:2
12EUS评估上皮下病变组织取样的诊断效率:钳夹活检与内镜黏膜下切除的比较Cantor M.J. Davila R.E. Faigel D.O. 王晓君 2006世界核心医学期刊文摘(胃肠病学分册)2006,0,11:2
13Simple Characteristics Estimation Methods of Material and Molecule Electronic Structure显示文摘M.Y. Dolomatov D.O. Shulyakovskaya G.R. Mukaeva G.U. Jarmuhametova K.F. Latypov 2012材料科学与工程(中英文B版)2012,2,4:2
14Alfalfa pellet-induced subacute ruminal acidosis in dairy cows increases bacterial endotoxin in the rumen without causing inflammation显示文摘E. Khafipour D.O. Krause J.C. Plaizier 2009Journal of Dairy Science2009,,4:2
15A grain-based subacute ruminal acidosis challenge causes translocation of lipopolysaccharide and triggers inflammation显示文摘E. Khafipour D.O. Krause J.C. Plaizier 2009Journal of Dairy Science2009,,3:2
16The effect of processing parameters and substrate composition on the corrosion resistance of plasma electrolytic oxidation (PEO) coated magnesium alloys显示文摘R.O. Hussein D.O. Northwood X. Nie 2013Surface & Coatings Technology2013,,:2
17论满通古斯诸语的音变规则显示文摘D.O.朝克 1996满语研究1996,0,2:1
18Pseudomembranous colitis leading to toxic megacolon associated with antineoplastic chemotherapy显示文摘Vic Velanovich M.D. Anthony J. LaPorta M.D. Wayne L. Garrett D.O. Timothy B. Richards M.D. Patricia A. Cornett M.D 1992Diseases of the Colon & Rectum1992,,4:1
19A study of the interactive effects of hybrid current modes on the tribological properties of a PEO (plasma electrolytic oxidation) coated AM60B Mg-alloy显示文摘R.O. Hussein D.O. Northwood J.F. Su X. Nie 2012Surface & Coatings Technology2012,,:1
20Review of energy storage technologies for sustainable power networks显示文摘D.O. Akinyele R.K. Rayudu 2014Sustainable Energy Technologies and Assessments2014,,:1
返回顶部 每页显示:
共5页 首页 上一页 第1页 下一页 末页 /5 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