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520篇 您的检索式:作者名="Michael Smith"
    题名 作者 年代 出处 被引量
1婴幼儿卒中的处理:来自美国心脏协会卒中委员会和青少年心血管病委员会专门写作组的科学声明显示文摘目的:本声明旨在回顾有关儿童卒中的文献,为最佳的诊断和治疗提供推荐意见,供负责诊断和治疗婴儿、儿童和青少年脑血管病的医生使用。方法:写作组成员由美国心脏协会卒中委员会科学声明监督委员会任命,由多个不同领域的专家组成。应用美国心脏协会卒中委员会的证据分级标准对每条推荐意见进行分级。在经过小组成员审查后,草稿由4位同行评议专家和卒中委员会指导委员会成员审阅,并由美国心脏协会科学咨询和协调委员会批准。我们预计该声明需在4年内进行更新。结果:为镰状细胞病、烟雾病、颈一脑动脉夹层分离和心源性栓塞引起的缺血性卒中的预防提供循证推荐,同时为出血性卒中的评价和处理提供推荐意见。提出儿童使用肝素和华法林的剂量方案。另外,还为围产期卒中和儿童脑静脉窦血栓形成的评价和处理提供推荐。E.Steve Roach(著) Meredith R. Golomb(著) Robert Adams(著) Jose Biller(著) Stephen Daniels(著) Gabrielle deVeber(著) Donna Ferriero(著) Blaise V. Jones(著) Fenella J. Kirkham(著) R. Michael Scott(著) Edward R. Smith(著) 刘丽芳(译) 王胜男(译) 王伟(译) 林镇洲(译) 朱佳佳(译) 潘速跃(译) 2008国际脑血管病杂志2008,16,11:60
2A community-derived classification for extant lycophytes and ferns显示文摘发展史长通知了蕨类植物分类。当我们推断进化的树的能力改善了,针对认出生来的组的分类变得逐渐地预兆、稳定。这里,我们为 lycophytes 和蕨纲植物提供一个现代、全面分类,在下面,利用一条基于社区的途径类水平。我们 monophyly 用作主要标准让 taxa,而且目的识别保存两个广泛地被接受的存在 taxa 和界限并且与我们蕨类植物发展史的理解一致。总共,这个分类对待一在 337 个类, 51 个家庭, 14 目,和二个班估计了 11  916 种类。这个分类没在 lycophyte 和蕨纲植物上作为最后的词被打算分类,而是当前的假设的概括陈述,源于最好的可得到的数据并且在问题由熟悉植物的那些大多数塑造了。我们希望它将在蕨类植物上为最近的文学的那些想要的参考用作一个资源发展史和分类,为指导未来调查的一个框架,和推进讲话的刺激。Eric Schuettpelz Harald Schneider Alan R. Smith Peter Hovenkamp Jefferson Prado Germinal Rouhan Alexandre Salino Michael Sundue Thafs Elias Almeida Barbara Parris Emily B. Sessa Ashley R. Field Andre Luis de Gasper Carl J. Rothfels Michael D. Windham Marcus Lehnert Benjamin Dauphin Atsushi Ebihara Samuli Lehtonen Pedro Bond Schwartsburd Jordan Metzgar Li-Bing Zhang Li-Yaung Kuo Patrick J. Brownsey Masahiro Kato Marcelo Daniel Arana Francine C. Assis Michael S. Barker David S. Barrington Ho-Ming Chang Yi-Han Chang Yi-Shan Chao Cheng-Wei Chen De-Kui Chen Wen-Liang Chiou Vinicius Antonio de Oliveira Dittrich Yi-Fan Duan Jean-Yves Dubuisson Donald R. Farrar Susan Fawcett Jose Maria Gabriel y Galan Luiz Armando de Araujo Goes-Neto Jason R. Grant Amanda L. Grusz Christopher Haufler Warren Hauk Hai He Sabine Hennequin Regina Yoshie Hirai Layne Huiet Michael Kessler Petra Korall Paulo H. Labiak Anders Larsson Blanca Leen Chun-Xiang Li Fay-Wei Li Melanie Link-Perez Hong-Mei Liu Ngan Thi Lu Esteban I. Meza-Torres Xin-Yuan Miao Robbin Moran Claudine Massi Mynssens Nathalie Nagalingum Benjamin Ollgaard Alison M. Paul Jovani B. de S. Pereira Leon R. Perrie Monica Ponce Tom A. Ranker Christian Schulz Wataru Shinohara Alexander Shmakov Erin M. Sigel Filipe Soares de Souza Lana da Silva Sylvestre Weston Testo Luz Amparo Triana-Moreno Chie Tsutsumi Hanna Tuomisto IvAn A. Valdespino Alejandra Vasco Raquel Stauffer Viveros Alan Weakley Ran Wei Stina Weststrand Paul G. Wolf George Yatskievych Xiao-Gang Xu Yue-Hong Yan Liang Zhang Xian-Chun Zhang Xin-Mao Zhou 2016Journal of Systematics and Evolution2016,54,6:44
3MicroRNAs, development of Barrett’s esophagus, and progression to esophageal adenocarcinoma显示文摘Barrett's esophagus is a premalignant condition caused by gastroesophageal reflux. Once developed, it can progress through varying grades of dysplasia to esoph-ageal adenocarcinoma. Whilst it is well accepted that Barrett's esophagus is caused by gastroesophageal reflux, the molecular mechanisms of its pathogenesis and progression to cancer remain unclear. MicroRNAs (miRNAs) are short segments of RNA that have been shown to control the expression of many human genes. They have been implicated in most cellular processes, and the role of miRNAs in disease development is be-coming increasingly evident. Understanding altered miRNA expression is likely to help unravel the molecular mechanisms that underpin the development of Barrett's esophagus and its progression to cancer.Cameron M Smith David I Watson Michael Z Michael Damian J Hussey 2010World Journal of Gastroenterology2010,16,5:23
4miR-200 family expression is downregulated upon neoplastic progression of Barrett's esophagus显示文摘AIM: To investigate miR-200 family expression in Barrett's epithelium, gastric and duodenal epithelia, and esophageal adenocarcinoma. METHODS: Real-time reverse transcriptase-polymerase chain reaction was used to measure miR-200, ZEB1 and ZEB2 expression. Ingenuity Pathway Analysis of miR-200 targets was used to predict biological outcomes. RESULTS: Barrett's epithelium expressed lower levels of miR-141 and miR-200c than did gastric and duodenal epithelia (P < 0.001). In silico analysis indicated roles for the miR-200 family in molecular pathways that distinguish Barrett's epithelium from gastric and duodenalepithelia, and which control apoptosis and proliferation. All miR-200 members were downregulated in adenocarcinoma (P < 0.02), and miR-200c expression was also downregulated in non-invasive epithelium adjacent to adenocarcinoma (P < 0.02). The expression of all miR-200 members was lower in Barrett's epithelium derived high-grade dysplastic cell lines than in a cell line derived from benign Barrett's epithelium. We observed signif icant inverse correlations between miR-200 family expression and ZEB1 and ZEB2 expression in Barrett's epithelium and esophageal adenocarcinoma (P < 0.05). CONCLUSION: miR-200 expression might contribute to the anti-apoptotic and proliferative phenotype of Barrett's epithelium and regulate key neoplastic processes in this epithelium.Cameron M Smith David I Watson Mary P Leong George C Mayne Michael Z Michael Bas PL Wijnhoven Damian J Hussey 2011World Journal of Gastroenterology2011,17,8:13
5Shale Gas Well Completions and Maximizing Gas Recoveries显示文摘It is shown that stress fields within the earth are the principle control for hydraulic fracture direction in horizontal shale gas wells. Hydraulic fracturing is a process of increasing permeability within gas shales and involves a sophisticated organization of technology, good planning and proper management of equipment over a very short time period to be successful. The direction and extent of the induced fractures can be determined in near real-time at the well site via application of earthquake seismology theory in a now common process known as frac mapping. Next to the horizontal lateral azimuth, the total volume of slurry pumped into the well is a major factor in determining well EURs. Vertical fracture growth can be controlled and is important in concentration of the slurry within the main zone target zone that has the high TOC and porosity. Cemented casing with perforations is currently the most used method for zone isolation. New open-hole sleeve packers may eventually provide more flexibility in fracture design while also providing a means for refracturing multi-stage fractured horizontal wells, a technique not now commonly available. Multi-Stage fracture design requires incorporating rock properties with fracturing effect simulations and then verifying results using 3D reservoir simulations. Maximizing the gas recovery factors and EURs can be accomplished through use of closely spaced laterals with inter-fingered fracture stages and exploiting the stress shadow fracturing phenomenon. Even greater EURs may be possible if the wells can be refractured thereby opening up additional permeability channels. Shale gas development has progressed in an environmentally sensitive manner within the U.S. and will continue in this manner. During the past ten years, all of these technologies have been either newly developed or were the advancement of existing technology with modifications. The opportunity exists to take these proven technologies to other areas of the world for exploitation of shale gas reservoirs.Michael D. Burnaman Stephen Smith Wenwu Xia 2009中国石油勘探2009,14,3:8
6如何设计高质量针刺临床研究:基于证据的专家共识显示文摘本针刺随机对照试验(Randomised controlled trials, RCT)专家共识是基于目前针刺试验面临的最普遍、最关键问题,由临床医生、研究人员、从事针灸和外科的临床试验专家、统计专家、临床流行病学和方法学专家以及患者组成的国际临床研究小组联合制订。该共识将有助于临床试验资助者、注册者以及期刊编辑等评估针刺RCT方案及研究结果的相关性、重要性和质量。张誉清 焦睿珉 Claudia M Witt 劳力行 刘建平 Lehana Thabane Karen J Sherman Mike Cummings Dawn P Richards Eun-Kyung Anna Kim Tae-Hun Kim Myeong Soo Lee Michael E Wechsler Benno Brinkhaus Jun J Mao Caroline A Smith 岗卫娟 刘保延 刘志顺 刘岩 郑晖 吴佳霓 AloBSO Carrasco-Labra Mohit Bhandari Philip J Devereaux 景向红 Gordon Guyatt 2022英国医学杂志中文版2022,25,6:7
7Time and Loving Patience显示文摘领养来陪伴儿子的猫咪最初对我充满了敌意,子搬出去住后,猫咪终于接受了我——现在,它喜欢缠着他,见到我却总是躲避。当儿它和我在一起十分安心。Michael T. Smith 青柠(选注) 2012英语学习2012,,3:5
8Superior anti-corrosion and self-healing bi-functional polymer composite coatings with polydopamine modified mesoporous silica/graphene oxide显示文摘In this article,graphene oxide(GO)and benzotriazole-loaded mesoporous silica nanoparticles(BTA/MSNs)are combined on micro scale through the in situ polymerization of polydopamine(PDA),preparing a selfhealing bi-functional GO(fGO)used as nano-fillers for anti-corrosion enhancement of waterborne epoxy(WEP)coatings.Scanning electronic microscopy(SEM)images show that the BTA/MSNs are uniformly distributed on the surface of high aspect ratio GO nanosheets to endow GO nanocontainer characteristics.UV-vis profiles demonstrate that fGO has p H-controlled release function.Modulus at lowest frequency is generally used for comparing the corrosion resistance of organic coatings.Modulus at lowest frequency(1.42×10^(5)Ωcm^(2))after 30 days immersion in 3.5 wt.%Na Cl solution revealed 2 orders of magnitude higher that of blank WEP(1.17×10^(7)Ωcm^(2)).With artificial cracks on its coatings,fGO/WEP had no obvious rust compared with blank WEP after 240 h of immersion.We anticipate that self-healing and physical barrier bi-functional nanocontainers improve the traditional anticorrosion coating efficiency with better,longer-lasting performance for shipping,oil drilling or bridge maintenance.Yanqi Ma Haowei Huang Hongda Zhou Michael Graham James Smith Xinxin Sheng Ying Chen Li Zhang Xinya Zhang Elena Shchukina Dmitry Shchukin 2021Journal of Materials Science & Technology2021,,36:4
9Acute myeloid leukemia is characterized by Wnt pathway inhibitor promoter hypermethylation显示文摘Elizabeth A. Griffiths Steven D. Gore Craig Hooker Michael A. McDevitt Judith E. Karp B. Douglas Smith Helai P. Mohammad Ying Ye James G. Herman Hetty E. Carraway 2010Leukemia & Lymphoma2010,,9:3
10The Microbial Metabolites, Short-Chain Fatty Acids, Regulate Colonic Treg Cell Homeostasis显示文摘Patrick M. Smith Michael R. Howitt Nicolai Panikov Monia Michaud Carey Ann Gallini Mohammad Bohlooly-Y Jonathan N. Glickman Wendy S. Garrett 2013Science . 2013 (6145)2013,,:3
11一侧大脑的局灶性梗塞后2~3周ADL情况显示文摘一侧大脑的局灶性梗塞可造成日常生活活动(Activities of Daily Living,ADL)的障碍,为了了解其障碍规律,以便有效地指导这类患者的ADL评价和训练,进一步探讨脑的运动控制功能与ADL的关系,选取了左右侧大脑中动脉梗塞引起的局灶性中等度脑梗塞患者各14例,于梗塞后2~3周用澳大利亚ADL指数对ADL的17项活动分三级进行了评价。结果从各项活动评分分析,大小便控制力、开关水龙头、刷牙、化妆、进食等五项活动基本上无异常改变,而室内移动、室外移动,上楼梯、下楼梯、从地到床的移动等五项活动有2级以上(包括2级)的改变。这可能与脑梗塞后所处的恢复过程的时相与运动形式的异常有关。戴红 Dennis. S. Smith Michael Clark 1992中国康复医学杂志1992,7,2:3
12Objective assessment of bradykinesia in Parkinson’s disease using evolutionary algorithms:clinical validation显示文摘Background:There is an urgent need for developing objective,effective and convenient measurements to help clinicians accurately identify bradykinesia.The purpose of this study is to evaluate the accuracy of an objective approach assessing bradykinesia in finger tapping(FT)that uses evolutionary algorithms(EAs)and explore whether it can be used to identify early stage Parkinson’s disease(PD).Methods:One hundred and seven PD,41 essential tremor(ET)patients and 49 normal controls(NC)were recruited.Participants performed a standard FT task with two electromagnetic tracking sensors attached to the thumb and index finger.Readings from the sensors were transmitted to a tablet computer and subsequently analyzed by using EAs.The output from the device(referred to as'PD-Monitor')scaled from−1 to+1(where higher scores indicate greater severity of bradykinesia).Meanwhile,the bradykinesia was rated clinically using the Movement Disorder Society-Sponsored Revision of the Unified Parkinson’s Disease Rating Scale(MDS-UPDRS)FT item.Results:With an increasing MDS-UPDRS FT score,the PD-Monitor score from the same hand side increased correspondingly.PD-Monitor score correlated well with MDS-UPDRS FT score(right side:r=0.819,P=0.000;left side:r=0.783,P=0.000).Moreover,PD-Monitor scores in 97 PD patients with MDS-UPDRS FT bradykinesia and each PD subgroup(FT bradykinesia scored from 1 to 3)were all higher than that in NC.Receiver operating characteristic(ROC)curves revealed that PD-Monitor FT scores could detect different severity of bradykinesia with high accuracy(≥89.7%)in the right dominant hand.Furthermore,PD-Monitor scores could discriminate early stage PD from NC,with area under the ROC curve greater than or equal to 0.899.Additionally,ET without bradykinesia could be differentiated from PD by PD-Monitor scores.A positive correlation of PD-Monitor scores with modified Hoehn and Yahr stage was found in the left hand sides.Conclusions:Our study demonstrated that a simple to use device employing classifiers derived from EAs could not only be used to accurately measure different severity of bradykinesia in PD,but also had the potential to differentiate early stage PD from normality.Chao Gao Stephen Smith Michael Lones Stuart Jamieson Jane Alty Jeremy Cosgrove Pingchen Zhang Jin Liu Yimeng Chen Juanjuan Du Shishuang Cui Haiyan Zhou Shengdi Chen 2018Translational Neurodegeneration2018,7,1:3
13Fabricating a reactive surface on the fibroin film by a room-temperature plasma jet array for biomolecule immobilization显示文摘A simple dielectric barrier discharge(DBD) jet array was designed with a liquid electrode and helium gas.The characteristics of the jet array discharge and the preliminary polymerization with acrylic acid(AA) monomer were presented.The plasma reactor can produce a cold jet array with a gas temperature lower than 315 K,using an applied discharge power between 6 W and 30 W(V dis × I dis).A silk fibroin film(SFF) was modified using the jet array and AA monomer,and the treated SFF samples were characterized by atomic force microscopy(AFM),scanning electron microscopy(SEM),Fourier transform infrared spectroscopy(FTIR),and contact angle(CA).The deposition rate of the poly acrylic acid(PAA) was able to reach 300 nm/min,and the surface roughness and energy increased with the AA flow rate.The FTIR results indicate that the modified SFF had more carboxyl groups(-COOH) than the original SFF.This latter characteristic allowed the modified SFF to immobilize more quantities of antimicrobial peptide(AP,LL-37) which inhibited the Escherichia coli(E.Coli) effectively.陈光良 郑旭 吕国华 张朝霞 Sylvain Massey Wilson Smith Michael Tatoulian 杨思泽 2012Chinese Physics B2012,21,10:3
14Traffic Flow Forecasting: Comparison of Modeling Approaches显示文摘Brian L. Smith Michael J. Demetsky 1997Journal of Transportation Engineering1997,,4:3
15Short-Term Outcomes of the Australasian Randomized Clinical Study Comparing Laparoscopic and Conventional Open Surgical Treatments for Colon Cancer: The ALCCaS Trial显示文摘Peter J. Hewett Randall A. Allardyce Philip F. Bagshaw Christopher M. Frampton Francis A. Frizelle Nicholas A. Rieger J Shona Smith Michael J. Solomon Jacqueline H. Stephens Andrew R. L. Stevenson 2008Annals of Surgery2008,,5:3
16National Park vegetation mapping using multitemporal Landsat 7 data and a decision tree classifier显示文摘Eric C. Brown de Colstoun Michael H. Story Craig Thompson Kathy Commisso Timothy G. Smith James R. Irons 2003Remote Sensing of Environment2003,,3:2
17The Combination of Ribavirin and Peginterferon Is Superior to Peginterferon and Placebo for Children and Adolescents With Chronic Hepatitis C显示文摘Kathleen B. Schwarz Regino P. Gonzalez–Peralta Karen F. Murray Jean P. Molleston Barbara A. Haber Maureen M. Jonas Philip Rosenthal Parvathi Mohan William F. Balistreri Michael R. Narkewicz Lesley Smith Steven J. Lobritto Stephen Rossi Alexandra Valsamaki 2011Gastroenterology2011,,2:2
18Neo- and Paleopolyploidy contribute to the species diversity of Asplenium the most species-rich genus of ferns显示文摘Polyploidy 广泛地在植物的进化被看作一个主要过程,但是多倍体种类差异的累积仍然是争论的。一些最近的研究与他们的双祖先相比在 neopolyploids 建议了增加的扑灭风险。多倍体蕨纲植物的高比例被期望主要被 neopolyploids 形成,而 paleopolyploid 种类被预言在整个染色体复制成立的 clades 被聚类。这里,我们由在导出的蕨纲植物家庭 Aspleniaceae 探索 polyploidy 的进化测试这预言。家庭有全球分布并且在所有蕨纲植物之中显示出多倍体 taxa 的最高的频率。测试假设,我们用代表 292 种类的 883 个标本的叶绿体 DNA 序列获得了全面发展史。所有出版染色体计数被印射到这个种系发生的框架上以便探索多倍体的进化。我们 Aspleniaceae 的历史上为几整个染色体复制恢复了证据。超过 tetraploid 水平的多倍体的种系发生的关系建议那 tetraploid Asplenium 种可能在这个家庭的某 clades 作为主要进化播放器代替了他们的双祖先。Harald Schneider Hong-Mei Liu Yan-Fen Chang Daniel Ohlsen Leon R. Perrie Lara Shepherd Michael Kessler Dirk N. Karger Sabine Hennequin Jeannine Marquardt Stephen Russell Stephen Ansell Ngan Thi Lu Peris Kamau Josmaily Loriga Ledis Regalado Jochen Heinrichs Atsushi Ebihara Alan R. Smith Mary Gibby 2017Journal of Systematics and Evolution2017,55,4:2
19Preoperative Nutritional Status Is an Important Predictor of Survival in Patients Undergoing Surgery for Renal Cell Carcinoma显示文摘Todd M. Morgan Dominic Tang Kelly L. Stratton Daniel A. Barocas Christopher B. Anderson Justin R. Gregg Sam S. Chang Michael S. Cookson S. Duke Herrell Joseph A. Smith Peter E. Clark 2011European Urology2011,,6:2
20Pedicle Morphology In Thoracic Adolescent Idiopathic Scoliosis: Is Pedicle Fixation an Anatomically Viable Technique?显示文摘Michael F O’Brien Lawrence G Lenke Steven Mardjetko Thomas G Lowe Yinong Kong Kevin Eck David Smith 2000Spine2000,,18:2
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