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932篇 您的检索式:作者名="Lee C."
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1应用中国商环包皮环切手术标准化方案对328例成年男性包皮环切的临床报告显示文摘目的:成年男性包皮环切手术标准化和培训可显著降低因手术引起的并发症发生率。由于目前国内外尚无可供参考的成年男性包皮环切手术标准化方案和培训制度,使得临床医生开展成年男性包皮环切手术的质量无法保证。为了建立成年男性包皮环切手术标准化和培训制度,便于临床医生和相关医护人员学习和掌握包皮环切器的临床应用技巧,以中国商环(简称'商环,ShangRing')包皮环切技术为例,根据商环的技术特点和临床实践经验,特别制订了商环包皮环切手术标准化方案,并将其标准化操作运用于临床。方法:采用商环包皮环切手术标准化方案对328例受术者(年龄18~58岁,平均27.8岁;已婚134例,未婚194例;包茎25例,包皮过长303例)进行包皮环切手术。对手术时间、疼痛评分(视觉模拟评分法,VAS)、术后并发症、包皮创口愈合时间、术后外观满意情况进行观察和随访。结果:手术时间为(4.70±1.31)min。手术时受术者疼痛(VAS)评分为(0.24±0.59)分,术后24h疼痛评分为(1.59±0.95)分,去环前24h内疼痛评分(1.72±1.11)分,去环时疼痛评分为(2.72±1.37)分。主要并发症发生率为术后感染0.6%(2/328)、出血0.6%(2/328)、伤口裂开0.6%(2/328)和水肿4.89%(16/328)。在发生出血和伤口裂开的受术者中无1例需要缝合。术后包皮创口完全愈合时间为(20.30±6.69)d。受术者对术后外观满意率99.7%(327/328)。结论:商环包皮环切术具有手术方式易于标准化、手术时间短、术中疼痛轻、术后无须特殊护理、容易完整保留系带,并完全暴露冠状沟、术后外观满意度高、受术者易于接受等优点。初步证明了中国商环包皮环切手术标准化方案的可接受性,严格按照此方案实施手术和随访护理,能最大化地实现商环包皮环切技术的诸多临床优势,将并发症发生率控制在可接受的范围内。程跃 彭弋峰 刘毅东 田龙 吕年青 苏新军 严泽军 胡嘉盛 Richard LEE Howard KIM David C. SOKAL 李石华 2009中华男科学杂志2009,15,7:155
2卒中或短暂性脑缺血发作患者的卒中预防指南 美国心脏协会/美国卒中协会为医疗卫生专业人员制定的指南显示文摘本指南旨在为缺血性卒中或短暂性脑缺血发作存活患者的卒中预防提供全面和及时的循证推荐,包括危险因素的控制、动脉粥样硬化性疾病的于预、心源性栓塞的抗栓治疗以及非心源性栓塞性卒中的抗血小板治疗。另外,还对其他许多特殊情况下的复发性卒中预防提供了推荐意见,包括动脉夹层分离、卯圆孔未闭、高同型半胱氨酸血症、高凝状态、镰状细胞病、脑静脉窦血栓形成、女性卒中(尤其是与妊娠和绝经后雌激素替代治疗相关性卒中)、脑出血后抗凝药的使用等,以及实施本指南及其在高危人群中应用的特定方法。Karen L. Furie Scott E. Kasner Robert J. Adams Gregory W. Albers Ruth L. Bush Susan C. Fagan Jonathan L. Halperin S. Claiborne Johnston Irene Katzan Walter N. Kernan Pamela H. Mitchell Bruce Ovbiagele Yuko Y. Palesch Ralph L. Sacco Lee H. Schwamm Sylvia Wassertheil-Smoller Tanya N. Turan Deidre Wentworth 李海峰(译) 刘涛(译) 杨潘(译) 王鹏(译) 2011国际脑血管病杂志2011,19,1:391
3离子色谱电感耦合等离子体质谱联用法测定水中痕量BrO_3^-及Br^-显示文摘建立了离子色谱电感耦合等离子体质谱联用技术(ICICPMS)用于饮用水中的痕量BrO-3及Br-的测量。使用DIONEXCarbopacPA100(4mm×250mmi.d.)在流速1mL/min及5mmol/LNH4NO3(pH5.7)淋洗液下进行BrO-3和Br-的分离。该方法以100μL进样量对BrO-3的检出限为0.0027μmol/L(0.22μg/L);对Br-的检出限为0.0067μmol/L(0.54μg/L)。对水样的分析结果表明,所测矿泉水中的BrO-3浓度大大超出了世界卫生组织最新《饮用水水质准则》中所规定的溴酸盐的指导值,而所测量的青岛崂山区生活用水则未检出BrO-3。沈金灿 荆淼 陈登云 沈阳 王小如 Frank S. C. Lee 2005分析化学2005,33,7:32
4REE geochemistry of suspended sediments from the rivers around the Yellow Sea and provenance indicators显示文摘Rare earth element (REE) compositions of the suspended sediments from the rivers around the Yellow Sea were different in that Korean river sediments (Han, Keum and Yeongsan Rivers) yield stronger fractionations than Chinese river sediments (Changjiang, Huanghe and Yalujiang), shown by obvious enrichments of LREE (light rare earth element) relative to UCC (upper continental crust). Variations of source rock compositions in the drainage basins are responsible for the differences of REE compositions between the river sediments. REE fractionation parameters including (La/Yb)UCC and (Gd/Yb)UCC as well as the ratios of La/Sc and Th/Sc can be treated as proper proxies for identifying the Chinese river sediments from those Korean river matters, and furthermore, for studying the provenances and paleoenvironmental changes of the marginal seas of China.YANG Shouye LI Congxian C. B. Lee T. K. Na 2003Chinese Science Bulletin2003,48,11:30
5Evolving concepts in bone infection: redefining “biofilm”,“acute vs. chronic osteomyelitis”, “the immune proteome” and “local antibiotic therapy”显示文摘Osteomyelitis is a devastating disease caused by microbial infection of bone. While the frequency of infection following elective orthopedic surgery is low, rates of reinfection are disturbingly high. Staphylococcus aureus is responsible for the majority of chronic osteomyelitis cases and is often considered to be incurable due to bacterial persistence deep within bone. Unfortunately, there is no consensus on clinical classifications of osteomyelitis and the ensuing treatment algorithm. Given the high patient morbidity,mortality, and economic burden caused by osteomyelitis, it is important to elucidate mechanisms of bone infection to inform novel strategies for prevention and curative treatment. Recent discoveries in this field have identified three distinct reservoirs of bacterial biofilm including: Staphylococcal abscess communities in the local soft tissue and bone marrow, glycocalyx formation on implant hardware and necrotic tissue, and colonization of the osteocyte-lacuno canalicular network(OLCN) of cortical bone. In contrast, S.aureus intracellular persistence in bone cells has not been substantiated in vivo, which challenges this mode of chronic osteomyelitis. There have also been major advances in our understanding of the immune proteome against S. aureus, from clinical studies of serum antibodies and media enriched for newly synthesized antibodies(MENSA), which may provide new opportunities for osteomyelitis diagnosis, prognosis, and vaccine development. Finally, novel therapies such as antimicrobial implant coatings and antibiotic impregnated 3D-printed scaffolds represent promising strategies for preventing and managing this devastating disease. Here, we review these recent advances and highlight translational opportunities towards a cure.Elysia A. Masters Ryan P. Trombetta Karen L. de Mesy Bentley Brendan F Boyce Ann Lindley Gill Steven R. Gill Kohei Nishitani Masahiro Ishikawa Yugo Morita Hiromu Ito Sheila N. Bello-Irizarry Mark Ninomiya James D. Brodell Jr. Charles C. Lee Stephanie P. Hao Irvin Oh Chao Xie Hani A. Awad John L. Daiss John R. Owen Stephen L. Kates Edward M. Schwarz Gowrishankar Muthukrishnan 2019Bone Research2019,7,3:19
6DISLOCATION DISSOCIATIONS AND FAULTENERGIES IN Ni_3Al ALLOYS DOPED WITH PALLADIUM显示文摘Dislocation structures in polycrystalline Ni 3Al alloy doped with palladium deformed at room temperature have been investigated by transmission electron microscopy. The structure consists mainly of dislocations dissociated into a /2〈011〉 super partials bounding an anti phase boundary (APB). Dislocations dissociated into a /3〈112〉 super Shockley partials bounding a superlattice intrinsic stacking fault (SISF) are also common debris. The majority of the SISFs are truncated loops, i.e. the partials bounding the SISF are of similar Burgers vector. These faulted loops are generated from APB coupled dislocations, according to a mechanism for formation of SISFs proposed by Suzuki et al , and recently modified by Chiba et al . The APB energies for {111} and {010} slip planes are measured to be 144±20 mJ/m 2 and 102±11 mJ/m 2 respectively, and the SISF energy has been estimated to be 12 mJ/m 2 in this alloy. It is concluded that the dislocation structure in Ni 74.5 Pd 2Al 23.5 alloy deformed at room temperature is similar to that in binary Ni 3Al, and the difference in fault energies between these two alloys is small. Thus, it seems unlikely that the enhancement of ductility of Ni 74.5 Pd 2Al 23.5 results from only such a small decrease of the ordering energy of the alloy. SISF bounding dislocations also have no apparent influence on the ductilization of Ni 74.5 Pd 2Al 23.5 alloy.J. Sun *# , C. S. Lee # and J. K. L. Lai # * Open Lab for High Temperature Materials & Tests, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China # Department of Physics and Materials 1999中国有色金属学会会刊:英文版1999,9,S1:16
7Experimental study of hollow rectangular bridge column performance under vertical and cyclically bilateral loads显示文摘To investigate the seismic performance of hollow reinforced concrete(RC) bridge columns of rectangular cross section under constant axial load and cyclically biaxial bending,five specimens were tested.A parametric study is carried out for different axial load ratios,longitudinal reinforcement ratios and lateral reinforcement ratios.The experimental results showed that all tested specimens failed in the flexural failure mode and their ultimate performance was dominated by flexural capacity,which is represented by the rupture/buckling of tensile longitudinal rebars at the bottom of the bridge columns.Biaxial force and displacement hysteresis loops showed significant stiffness and strength degradations,and the pinching effect and coupling interaction effect of both directions severely decrease the structural seismic resistance.However,the measured ductility coefficient varying from 3.5 to 5.7 and the equivalent viscous damping ratio varying from 0.19 and 0.26 can meet the requirements of the seismic design.The hollow RC rectangular bridge columns with configurations of lateral reinforcement in this study have excellent performance under bidirectional earthquake excitations,and may be considered as a substitute for current hollow RC rectangular section configurations described in the Guideline for Seismic Design of Highway Bridges(JTG/T B02-01-2008).The length of the plastic hinge region was found to approach one sixth of the hollow RC rectangular bridge column height for all specimen columns,and it was much less than those specified in the current JTG/T.Thus,the length of the plastic hinge region is more concentrated for RC rectangular hollow bridge columns.Han Qiang Du Xiuli Yihui Zhou George C. Lee 2013Earthquake Engineering and Engineering Vibration2013,12,3:10
8LAMOST Experiment for Galactic Understanding and Exploration (LEGUE)——The survey's science plan显示文摘We describe the current plans for a spectroscopic survey of millions of stars in the Milky Way galaxy using the Guo Shou Jing Telescope (GSJT, formerly called the Large sky Area Multi-Object fiber Spectroscopic Telescope - LAMOST). The survey will obtain spectra for 2.5 million stars brighter than r < 19 during dark/grey time, and 5 million stars brighter than r < 17 or J < 16 on nights that are moonlit or have low transparency. The survey will begin in the fall of 2012, and will run for at least four years. The telescope's design constrains the optimal declination range for observations to 10 < δ < 50 , and site conditions lead to an emphasis on stars in the direction of the Galactic anticenter. The survey is divided into three parts with different target selection strategies: disk, anticenter, and spheroid. The resulting dataset will be used to study the merger history of the Milky Way, the substructure and evolution of the disks, the nature of the first generation of stars through identification of the lowest metallicity stars, and star formation through study of open clusters and OB associations. Detailed design of the LAMOST Experiment for Galactic Understanding and Exploration (LEGUE) survey will be completed in summer 2012, after a review of the results of the pilot survey.Li-Cai Deng Heidi Jo Newberg Chao Liu Jeffrey L. Carlin Timothy C. Beers Li Chen Hsu-Tai Lee Carl J. Grillmair Puragra Guhathakurta] Zhan-Wen Han Jin-Liang Hou Sebastien Lepine Jing Li Xiao-Wei Liu Kai-Ke Pan J. A. Sellwood Bo Wang Hong-Chi Wang Fan Yang Brian Yanny Hao-Tong Zhang Yue-Yang Zhang Zheng Zheng Zi Zhu 2012Research in Astronomy and Astrophysics2012,12,7:10
9Guidelines for the Prevention of Stroke in Patients With Stroke or Transient Ischemic Attack: A Guideline for Healthcare Professionals From the American Heart Association/American Stroke Association显示文摘Karen L. Furie Scott E. Kasner Robert J. Adams Gregory W. Albers Ruth L. Bush Susan C. Fagan Jonathan L. Halperin S. Claiborne Johnston Irene Katzan Walter N. Kernan Pamela H. Mitchell Bruce Ovbiagele Yuko Y. Palesch Ralph L. Sacco Lee H. Schwamm Sylvia W 2011Stroke2011,,1:8
10DUCTILEBRITTLETRANSITION OF POLYCRYSTALLINE Ni_3Al WITH VARYING GRAIN SIZE显示文摘It is known that in B (un)doped Ni 3Al polycrystals, the dependence of yield strength on grain size follows the Hall Petch relationship: σ y= σ 0+ K y d -1/2 , and the slope K y can be reduced by B doping owing to the lowering of grain boundary resistance to slip transmission. If the intergranular cracking in polycrystalline Ni 3Al occurs from the microcavity along the grain boundaries, the effective external tensile stress for the propagation of the crack like microcavity along the grain boundaries can be deduced as: σ f= σ i+ K u d -1/2 , where K u reflects the effects of such factors as environment, strain rate, boron doping and the orientation of the grain boundary on the trend of intergranular cracking. For loaded polycrystalline Ni 3Al, it should be competitive between the intergranular cracking and slip transmission across the grain boundary. Therefore, comparing the varieties of both σ y and σ f with grain size, the dependence of ductile brittle transition on grain size, and the effects of the above factors on ductile brittle transition can be expected. The model also predicts that there exists a critical grain size for the ductile brittle transition of polycrystalline Ni 3Al alloys, and B doping can increase the critical grain size due to the reduction of the slope K y and the increase of K u. The reported experimental results verified the above model.G. W. Han, D. Feng and C. S. Lee  Central Iron & Steel Research Institute, Beijing 100081, China  Dept. Physical & Mater. Sci., City University of Hong Kong Hong Kong, China 1999中国有色金属学会会刊:英文版1999,9,S1:7
11From the editors:special issue announcement显示文摘选择的桥损坏的比较研究由于 Wenchuan, Northridge, Loma Prieta 和圣 Fernando,地震在这篇论文被描述。考虑的典型地面运动效果包括摇晃的大地面差错排水量,液化,山崩,和充分的理由。与掉落的跨度有关的问题,为结构的韧性和复杂的桥配置的不适当的详细说明在中国和美国的最近的地震设计代码的上下文以内被讨论。一堂重要的课从大 Wenchuan 地震学习了,在机会到以外远为桥改进地震设计食物,被明白表示。Wang Zhiqiang George C. Lee 2009Earthquake Engineering and Engineering Vibration2009,8,2:7
12Towards multiple hazard resilient bridges:a methodology for modeling frequent and infrequent time-varying loads Part Ⅱ,Examples for live and earthquake load effects显示文摘The current AASHTO load and resistance factor design (LRFD) guidelines are formulated based on bridge reliability,which interprets traditional design safety factors into more rigorously deduced factors based on the theory of probability.This is a major advancement in bridge design specifications.However,LRFD is only calibrated for dead and live loads.In cases when extreme loads are significant,they need to be individually assessed.Combining regular loads with extreme loads has been a major challenge,mainly because the extreme loads are time variable and cannot be directly combined with time invariant loads to formulate the probability of structural failure.To overcome these difficulties,this paper suggests a methodology of comprehensive reliability,by introducing the concept of partial failure probability to separate the loads so that each individual load combination under a certain condition can be approximated as time invariant.Based on these conditions,the extreme loads (also referred to as multiple hazard or MH loads) can be broken down into single effects.In this paper,a further breakdown of these conditional occurrence probabilities into pure conditions is discussed by using a live truck and earthquake loads on a bridge as an example.Zach Liang George C. Lee 2012Earthquake Engineering and Engineering Vibration2012,11,3:6
13Pancreaticoduodenectomy with vascular resection: margin status and survival duration显示文摘Jennifer F. Tseng M.D. Chandrajit P. Raut M.D. Jeffrey E. Lee M.D. Peter W. T. Pisters M.D. Jean-Nicolas Vauthey M.D. Eddie K. Abdalla M.D. Henry F. Gomez M.D. Charlotte C. Sun Dr.P.H. Christopher H. Crane M.D. Robert A. Wolff M.D. Douglas B. Evans M.D 2004Journal of Gastrointestinal Surgery2004,,8:6
14Characterization and source apportionment of atmospheric organic and elemental carbon during fall and winter of 2003 in Xi’an, China显示文摘Cao J. J. Wu F. Chow J. C. Lee S. C. Li Y. Chen S. W. An Z. S. Fung K. K. Watson J. G. Zhu C. S. Liu S. X 2005Atmospheric Chemistry and Physics2005,,56:6
15In-situ oxygen profiling and lignin modification in guts of wood-feeding termites显示文摘Jing Ke Jian-Zhong Sun Hung D. Nguyen Deepak Singh Karmen C. Lee Haluk Beyenal Shu-Lin Chen 2010Insect Science2010,17,3:5
16Bridge pier failure probabilities under combined hazard effects of scour, truck and earthquake. Part Ⅰ: occurrence probabilities显示文摘In many regions of the world, a bridge will experience multiple extreme hazards during its expected service life. The current American Association of State Highway and Transportation Officials (AASHTO) load and resistance factor design (LRFD) specifications are formulated based on failure probabilities, which are fully calibrated for dead load and non- extreme live loads. Design against earthquake loads is established separately. Design against scour effect is also formulated separately by using the concept of capacity reduction (or increased scour depth). Furthermore, scour effect cannot be linked directly to an LRFD limit state equation, because the latter is formulated using force-based analysis. This paper (in two parts) presents a probability-based procedure to estimate the combined hazard effects on bridges due to truck, earthquake and scour, by treating the effect of scour as an equivalent load effect so that it can be included in reliability-based bridge failure calculations. In Part I of this series, the general principle of treating the scour depth as an equivalent load effect is presented. The individual and combined partial failure probabilities due to truck, earthquake and scour effects are described. To explain the method of including non-force-based natural hazards effects, two types of common scour failures are considered. In Part II, the corresponding bridge failure probability, the occurrence of scour as well as simultaneously having both truck load and equivalent scour load are quantitatively discussed.Zach Liang George C. Lee 2013Earthquake Engineering and Engineering Vibration2013,12,2:5
17The Magic of Markets显示文摘The way markets aggregate information and facilitate decentralized planning is almost magical. But paradoxically, the magic continues only because the process is flawed. Therefore, the market is better characterized as being adaptive rather than efficient; and our research should seek to understand, rather than assume, the adaptive process.Charles M. C. Lee~* Johnson Graduate School of Management, Comell University, Ithaca, NY 14850, USA. 2003中国会计评论2003,1,0:5
18Endoscopic submucosal dissection with sentinel node navigation surgery for early gastric cancer显示文摘G. Bok Y. Kim S. Jin C. Chun T. Lee H. Kim S. Jeon J. Cho 2012Endoscopy2012,,10:5
19Maintenance Peginterferon Therapy and Other Factors Associated With Hepatocellular Carcinoma in Patients With Advanced Hepatitis C显示文摘Anna S. Lok James E. Everhart Elizabeth C. Wright Adrian M. Di Bisceglie Hae–Young Kim Richard K. Sterling Gregory T. Everson Karen L. Lindsay William M. Lee Herbert L. Bonkovsky Jules L. Dienstag Marc G. Ghany Chihiro Morishima Timothy R. Morgan 2011Gastroenterology2011,,3:4
20Update on Cardiovascular Implantable Electronic Device Infections and Their Management: A Scientific Statement From the American Heart Association显示文摘Larry M. Baddour Andrew E. Epstein Christopher C. Erickson Bradley P. Knight Matthew E. Levison Peter B. Lockhart Frederick A. Masoudi Eric J. Okum Walter R. Wilson Lee B. Beerman Ann F. Bolger N A. Mark Estes Michael Gewitz Jane W. Newburger Eleanor B. S 2010Circulation2010,,3:4
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