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1525篇 您的检索式:作者名="David PAUL"
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1GRADE指南:Ⅰ.导论--GRADE证据概要表和结果总结表显示文摘本文是GRADE(Grading of Recommendations Assessment,Development,and Evaluation)系列文章的导论。该系列文章为使用GRADE系统提供指导,介绍如何将该系统用于系统评价、卫生技术评估(HTAs)及临床实践指南中备选方案的证据质量评价和推荐强度评级。GRADE方法始于提出一个明晰的问题,包括对所有重要结果的详细说明。证据被收集和汇总后,GRADE提供了明确的标准来评价其质量,包括研究设计、偏倚风险、不精确性、不一致性、间接性及效应量大小。根据支撑证据质量及备选方案带来的预期和非预期结果间的平衡情况,推荐强度以强/弱(或表述为'有条件的'/'任意的')作为特征。GRADE建议用简洁、透明、信息量丰富的结果总结表来汇总证据(以显示证据质量及每一重要结果的相对效应量和绝对效应量),和(或)以证据概要表形式额外提供证据质量评价理由的详细信息。本系列的后续文章涉及如何采用GRADE方法明确构建问题、评价证据质量及形成推荐意见。Gordon Guyatt Andrew D.Oxman Elie Akl Regina Kunz Gunn Vist Jan Brozek Susan Norris Yngve Falck-Ytter Paul Glasziou Hans deBeer Roman Jaeschke David Rind Joerg Meerpohl Philipp Dahm Holger J.Schünemann GRADE工作组 李幼平 杨晓妍 蒋兰慧 沈建通 2011中国循证医学杂志2011,11,4:205
2急性缺血性卒中患者早期处理指南:美国心脏协会/美国卒中协会对医疗专业人员的指南(续前)显示文摘7静脉溶栓 7.1静脉rtPA 急性卒中的静脉溶栓治疗现已得到普遍接受。美国FDA于1996年批准静脉应用rtPA,部分基于NINDSrtPA卒中试验结果。Edward C. Jauch Jeffrey L. Saver Harold P. Adams Askiel Bruno J.J. (Buddy) Connors Bart M. Demaerschalk Pooja Khatri Paul W. McMullan Adnan I. Qureshi Kenneth Rosenfield Phillip A. Scott Debbie R. Summers David Z. Wang Max Wintermark Howard Yonas 李海峰(译) 岳耀先(译) 王琦(译) 张贤军(译) 丁晓君(译) 2013国际脑血管病杂志2013,21,8:975
3A 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
4GRADE指南:Ⅱ.构建问题、确定重要结果显示文摘GRADE要求明确说明相关的背景、人群、干预措施和对照,同时要求不论研究结果能否形成证据,均需详述所有重要结果。对某一特定管理问题,人群、干预措施及结果应在不同研究间足够类似,才能认为得到相似的效应量合乎情理。指南制定者在收集证据前应先详细说明各结局的相对重要性,同样地,证据总结完成时也需要详细说明这一点。考虑到替代结局的重要性,对采用替代指标描述且对患者很重要的结局,作者应评估其重要性,并进而降低这种间接结果的证据质量等级。Gordon H.Guyatt Andrew D.Oxman Regina Kunz David Atkins Jan Brozek Gunn Vist Philip Alderson Paul Glasziou Yngve Falck-Ytter Holger J.Schünemann GRADE工作组 李幼平 杨晓妍 陈群飞 2011中国循证医学杂志2011,11,4:40
5GRADE指南:Ⅸ.证据质量升级显示文摘证据质量升级的最常见原因是效应量大。当方法学严谨的观察性研究表明风险至少降低或增加2倍时,GRADE建议考虑将证据质量升高1级;当风险至少降低或增加5倍时,考虑将证据质量升高2级。当存在剂量-反应关系,或所有合理的混杂、偏倚会降低明显的治疗效应,或混杂、偏倚使得结果无效为假效应时,系统评价作者和指南制定者也可考虑升高证据质量。其他考虑因素包括起效迅速、潜在的疾病(状态)趋势以及间接证据。Gordon H.Guyatt Andrew D.Oxman Shahnaz Sultan Paul Glasziou Elie A.Akl Pablo Alonso-Coello David Atkins Regina Kunz Jan Brozek Victor Montori Roman Jaeschke David Rind Philipp Dahm Joerg Meerpohl Gunn Vist Elise Berliner Susan Norris Yngve Falck-Ytter M.Hassan Murad Holger J.Schünemann 代表GRADE工作组 李幼平 杨晓妍 李玲 王应强 2011中国循证医学杂志2011,11,12:22
6急性缺血性卒中患者早期处理指南:美国心脏协会/美国卒中协会对医疗专业人员的指南显示文摘背景和目的作者提供了关于成年急性缺血性卒中患者评估和治疗方面的现有证据和处理推荐的一份概述。目标读者为涉及急性缺血性卒中患者发病48h内诊治的院前诊疗人员、医生、综合医疗保健人员和医院管理者。该指南将取代先前的2007年版指南及其2009年更新版。方法著述委员会成员由美国卒中协会卒中委员会的科学声明监督委员会指定,代表各个领域的医疗专家。在形成共识的整个过程中,严格遵循美国心脏协会的利益冲突原则。委员会成员被分配给与其专业领域相关的内容,对卒中文献进行回顾,重点为前一版指南发表之后的文献,然后按照美国心脏协会卒中委员会的证据强度分级方案起草推荐意见。结果本指南的目的是减少卒中相关的残疾和死亡。本指南支持卒中医疗体系的全局性概念以及从患者识别、急救医疗服务激活、转送和分诊到急诊室和卒中单元内最初数小时诊治的卒中诊治细节。本指南讨论了早期卒中评估和一般治疗、缺血性卒中治疗、特殊干预措施,如再灌注策略以及脑复苏的一般生理学干预原则。结论由于许多推荐意见基于有限的证据,还迫切需要对急性缺血性卒中的治疗做进一步的研究。Edward C. Jauch Jeffrey L. Saver Harold P. Adams Askiel Bruno J.J. (Buddy) Connors Bart M. Demaerschalk Pooja Khatri Paul W. McMullan Jr, Adnan I. Qureshi Kenneth Rosenfield Phillip A. Scott Debbie R. Summers David Z. Wang Max Wintermark Howard Yonas 李海峰(译) 岳耀先(译) 王琦(译) 张贤军(译) 丁晓君(译) 2013国际脑血管病杂志2013,21,7:17
7Distinctive melt activity and chromite mineralization in Luobusa and Purang ophiolites, southern Tibet: constraints from trace element compositions of chromite and olivine显示文摘To investigate the factors controlling the mineralization in ophiolites we systematically compared the petrology and mineral compositions of the harzburgites/lherzolites, dunites and chromitites in the Luobusa and Purang ophiolites. Generally, the petrological features and trace element compositions of chromite and olivine in peridotite and chromitite are distinctly different between the two ophiolites.In Luobusa, boninitic melts are inferred to have interacted with the harzburgites and modified the distributions of some trace elements(e.g., Ni, Mn and V) in chromite and olivine. The subsequently formed dunites and chromitites experienced significant elemental exchange. In contrast, the Purang ophiolite contains a wider range of chromitite compositions and records diverse melt activities, such as the growth of relatively abundant secondary clinopyroxene. The metasomatic melts were enriched in Al and depleted in Si, Na and highly incompatible trace elements(e.g., Nb, Zr). Such melts resemble MORBlike melts proposed in the literature but are assumed to be more hydrous than typical MORB because of presence of hydrous minerals. The parental magmas of the Purang dunites and intermediate chromitites are inferred to be compositionally intermediate between boninitic and MORB-like melts. In addition,the more refractory nature of the Luobusa harzburgites facilitated a high Cr concentration gradient with the interacting melts, making it easier to increase Cr in the melts. Crystallization of clinopyroxene and amphibole in the Purang ophiolite accommodated significant amounts of Cr and water, respectively,and negatively affected Cr concentration and chromite crystallization. The concentration of chromite to form chromitites requires the presence of focused melt channels.Benxun Su Meifu Zhou Jiejun Jing Paul T. Robinson Chen Chen Yan Xiao Xia Liu Rendeng Shi Davide Lenaz Yan Hu 2019Science Bulletin2019,64,2:15
8尖锐心肌的梗塞: 在在新加坡的年轻成年人的临床的特征和结果显示文摘 AIM: To investigate the clinical features and in-hospital outcomes of young adults with acute myocardial infarction (AMI) in Singapore. METHODS: Between January 2005 to September 2010, 333 consecutive patients aged ≤ 45 years old were diagnosed to have AMI at our institution. As Singapore is a multi-ethnic society, we also analysed whether ethnic differences exist between the three dominant ethnic groups, Malay, Chinese and Indian with regards to the clinical features. Clinical data was collected retrospectively on demographic characteristics, presenting signs and symptoms, blood investigation, angiographic findings and in-hospital clinical outcomes. RESULTS: The mean age at presentation was 40.2 ± 4.0 years with male predominance (94%). The majority of patients were Chinese (51%) followed by Indians (31%) and Malays (18%). The most common risk factor was smoking (74%) followed by hypertension (28.5%) and hyperlipidemia (20.0%). 37% of patients were obese. The majority of patients had single vessel disease (46%) on coronary angiography. The mean total cholesterol, low-density lipoprotein and highdensity lipoprotein levels were 5.6±1.2 mmol/L, 3.8±1.1 mmol/L and 0.93±0.25 mmol/L respectively. The mean left ventricular function was 44%±10% with the incidence of heart failure 3% and cardiogenic shock 4.5%. Overall in-hospital mortality was low with 4 deaths (1.2%). For ethnic subgroup analysis, Indians have a 3-fold risk of developing premature AMI when compared to other ethnic groups. CONCLUSION: Young AMI patients in Singapore are characterized by male predominance, high incidence of smoking and obesity. Overall in-hospital clinical outcomes are favourable. Among the 3 ethnic groups, Indians have the highest risk of developing premature AMI.Chun Pong Wong Seet Yoong Loh Kwok Kong Loh Paul Jau Lueng Ong David Foo Hee Hwa Ho 2012World Journal of Cardiology2012,4,6:13
9The 2007 WHO Classification of Tumours of the Central Nervous System显示文摘David N. Louis Hiroko Ohgaki Otmar D. Wiestler Webster K. Cavenee Peter C. Burger Anne Jouvet Bernd W. Scheithauer Paul Kleihues 2007Acta Neuropathologica2007,,2:13
10Attributable cost of a nosocomial infection in the intensive care unit: A prospective cohort study显示文摘AIM To study the impact of hospital-acquired infections(HAIs) on cost and outcome from intensive care units(ICU) in India. METHODS Adult patients(> 18 years) admitted over 1-year, to a 24-bed medical critical care unit in India, were enrolled prospectively. Treatment cost and outcome data were collected. This cost data was merged with HAI data collected prospectively by the Hospital Infection Control Committee. Only infections occurring during ICU stay were included. The impact of HAI on treatment cost and mortality was assessed. RESULTS The mean(± SD) age of the cohort(n = 499) was42.3 ± 16.5 years. Acute physiology and chronic health evaluation-Ⅱ score was 13.9(95%CI: 13.3-14.5); 86% were ventilated. ICU and hospital length of stay were 7.8 ± 5.5 and 13.9 ± 10 d respectively. Hospital mortality was 27.9%. During ICU stay, 76(15.3%) patients developed an infection(ventilator-associated pneumonia 50; bloodstream infection 35; urinary tract infections 3), translating to 19.7 infections/1000 ICU days. When compared with those who did not develop an infection, an infection occurring during ICU stay was associated with significantly higher treatment cost [median(inter-quartile range, IQR) INR 92893(USD 1523)(IQR 57168-140286) vs INR 180469(USD 2958)(IQR 140030-237525); P < 0.001 and longer duration of ICU(6.7 ± 4.5 d vs 13.4 ± 7.0 d; P < 0.01) and hospital stay(12.4 ± 8.2 d vs 21.8 ± 13.9 d; P < 0.001)]. However ICU acquired infections did not impact hospital mortality(31.6% vs 27.2%; P = 0.49).CONCLUSION An infection acquired during ICU stay was associated with doubling of treatment cost and prolonged hospitalization but did not significantly increase mortality.Binila Chacko Kurien Thomas Thambu David Hema Paul Lakshmanan Jeyaseelan John Victor Peter 2017World Journal of Critical Care Medicine2017,6,1:11
11Rotational assisted endoscopic retrograde cholangiopancreatography in patients with reconstructive gastrointestinal surgical anatomy显示文摘AIM: To evaluate the success rates of performing therapy utilizing a rotational assisted enteroscopy device in endoscopic retrograde cholangiopancreatography(ERCP) in surgically altered anatomy patients. METHODS: Between June 1, 2009 and November 8, 2012, we performed 42 ERCPs with the use of rotational enteroscopy for patients with altered anatomy(39 with gastric bypass Roux-en-Y, 2 with Billroth Ⅱ gastrectomy, and 1 with hepaticojejunostomy associated with liver transplant). The indications for ERCP were: choledocholithiasis: 13 of 42(30.9%), biliary obstruction suggested on imaging: 20 of 42(47.6%), suspected sphincter of Oddi dysfunction: 4 of 42(9.5%), abnormal liver enzymes: 1 of 42(2.4%), ascending cholangitis: 2 of 42(4.8%), and bile leak: 2 of 42(4.8%). All procedures were completed with the Olympus SIF-Q180 enteroscope and the Endo-Ease Discovery SB overtube produced by Spirus Medical. RESULTS: Successful visualization of the major ampulla was accomplished in 32 of 42 procedures(76.2%). Cannulation of the bile duct was successful in 26 of 32 procedures reaching the major ampulla(81.3%). Successful therapeutic intervention was completed in 24 of 26 procedures in which the bileduct was cannulated(92.3%). The overall intention to treat success rate was 64.3%. In terms of cannulation success, the intention to treat success rate was 61.5%. Ten out of forty two patients(23.8%) required admission to the hospital after procedure for abdominal pain and nausea, and 3 of those 10 patients(7.1%) had a diagnosis of post-ERCP pancreatitis. The average hospital stay was 3 d.CONCLUSION: It is reasonable to consider an attempt at rotational assisted ERCP prior to a surgical intervention to alleviate biliary complications in patients with altered surgical anatomy.Majed El Zouhairi James B Watson Svetang V Desai David K Swartz Alejandra Castillo-Roth Mahfuzul Haque Paul S Jowell Malcolm S Branch Rebecca A Burbridge 2015World Journal of Gastrointestinal Endoscopy2015,7,3:10
12最小可销售专利实施单元的起源、沿革及走向显示文摘一、引言专利侵权损害赔偿额的估算问题,已经成为一项棘手而颇富争议的工作。在这个规则体系的演进过程中,一个争议很大的概念是最小可售专利实施单元(The Smallest Salable Patent Practicing Unit,以下简称"最小可售单元"或SSPPU)。目前较为流行的观点是:最小可销售单元是确定适当许可费计费基数的一种(不区分目的或场合的)普适性、实体标准。David J.Kappos Paul R.Michel 2017竞争政策研究2017,,2:10
13Involvement of eicosanoids in the pathogenesis of pancreatic cancer: the roles of cyclooxygenase-2 and 5-lipoxygenase显示文摘The interplay between inflammation and cancer progression is a growing area of research. A combination of clinical, epidemiological, and basic science investigations indicate that there is a relationship between inflammatory changes in the pancreas and neoplastic progression. Diets high in ω-6 polyunsaturated fatty acids provide increased substrate for arachidonic acid metabolism by cyclooxygenase-2(COX-2) and 5-lipoxygenase(5-LOX) to form eicosanoids. These eicosanoids directly contribute to pancreatic cancer cell proliferation. Both COX-2 and 5-LOX are upregulated in multiple cancer types, including pancreatic cancer. In vitro studies using pancreatic cancer cell lines have demonstrated upregulation of COX-2 and 5-LOX at both the mRNA and protein levels. When COX-2 and 5-LOX are blocked via a variety of mechanisms, cancer cell proliferation is abrogated both in vitro and in vivo.The mechanism of COX-2 has been shown to include effects on apoptosis as well as angiogenesis. 5-LOX has been implicated in apoptosis. The use of COX-2 and 5-LOX inhibitors in clinical studies in patients with pancreatic cancer has been limited. Patient enrollment has been restricted to those with advanced disease which makes evaluation of these drugs as chemopreventive agents difficult. COX-2 and 5-LOX expression have been shown to be present during the early neoplastic changes of pancreatic cancer, well before progression to invasive disease. This indicates that the ideal role for these interventions is early in the disease process as preventive agents, perhaps in patients with chronic pancreatitis or hereditary pancreatitis.Lawrence M Knab Paul J Grippo David J Bentrem 2014World Journal of Gastroenterology2014,20,31:9
14Overhanging rock slope by design:An integrated approach using rock mass strength characterisation,large-scale numerical modelling and limit equilibrium methods显示文摘Overhanging rock slopes(steeper than 90°) are typically avoided in rock engineering design, particularly where the scale of the slope exceeds the scale of fracturing present in the rock mass. This paper highlights an integrated approach of designing overhanging rock slopes where the relative dimensions of the slope exceed the scale of fracturing and the rock mass failure needs to be considered rather than kinematic release of individual blocks. The key to the method is a simplified limit equilibrium(LE) tool that was used for the support design and analysis of a multi-faceted overhanging rock slope. The overhanging slopes required complex geometries with constantly changing orientations. The overhanging rock varied in height from 30 m to 66 m. Geomechanical modelling combined with discrete fracture network(DFN)representation of the rock mass was used to validate the rock mass strength assumptions and the failure mechanism assumed in the LE model. The advantage of the simplified LE method is that buttress and support design iterations(along with sensitivity analysis of design parameters) can be completed for various cross-sections along the proposed overhanging rock sections in an efficient manner, compared to the more time-intensive, sophisticated methods that were used for the initial validation. The method described presents the development of this design tool and assumptions made for a specific overhanging rock slope design. Other locations will have different geological conditions that can control the potential behaviour of rock slopes, however, the approach presented can be applied as a general guiding design principle for overhanging rock cut slope.Paul Schlotfeldt Davide Elmo Brad Panton 2018Journal of Rock Mechanics and Geotechnical Engineering2018,10,1:8
15Efficacy and Safety of the Farnesoid X Receptor Agonist Obeticholic Acid in Patients With Type 2 Diabetes and Nonalcoholic Fatty Liver Disease显示文摘Sunder Mudaliar Robert R. Henry Arun J. Sanyal Linda Morrow Hanns-Ulrich Marschall Mark Kipnes Luciano Adorini Cathi I. Sciacca Paul Clopton Erin Castelloe Paul Dillon Mark Pruzanski David Shapiro 2013Gastroenterology2013,,:7
16Efficacy and safety of tenofovir in chronic hepatitis B: Australian real world experience显示文摘AIM To evaluate the long-term treatment outcomes of tenofovir therapy in patients in a real world Australian tertiary care setting.METHODS We performed a retrospective analysis of treatment outcomes among treatment-na?ve and treatment-experienced patients receiving a minimum 3 mo tenofovir therapy through St Vincent's Hospital Melbourne, Australia. We included patients receiving tenofovir [tenofovir disoproxil fumarate(TDF)] monotherapy, as well as patients treated with TDF in combination with a second antiviral agent. Patients were excluded if they demonstrated human immune-deficiency virus/hepatitis C virus/hepatitis delta virus coinfection or were less than 18 years of age. We considered virological and biochemicalresponse, as well as safety outcomes. Virological response was determined by measurement of hepatitis B virus(HBV) DNA using sensitive assays; biochemical response was determined via serum liver function tests; histological response was determined from liver biopsy and fibroscan; safety analysis focused on glomerular renal function and bone mineral density. The primary efficacy endpoint was complete virological suppression over time, defined by HBV DNA < 20 IU/m L. Secondary efficacy endpoints included rates of biochemical response, and HB e antigen(HBe Ag)/HB surface antigen loss and seroconversion over time.RESULTS Ninety-two patients were identified who fulfilled the enrolment criteria. Median follow-up was 26 mo(range 3-114). Mean age was 46(24-78) years, 64(70%) were male and 77(84%) were of Asian origin. 55(60%) patients were treatment-na?ve and 62 patients(67%) were HBe Ag-negative. Complete virological suppression was achieved by 45/65(71%) patients at 12 mo, 37/46(80%) at 24 mo and 25/28(89%) at 36 mo. Partial virological response(HBV DNA 20-2000 IU/m L) was achieved by 89/92(96.7%) of patients. Multivariate analysis showed a significant relationship between virological suppression at end of follow-up and baseline HBV DNA level(OR = 0.897, 95%CI: 0.833-0.967, P = 0.0046) and HBe Ag positive status(OR = 0.373, 95%CI: 0.183-0.762, P = 0.0069). There was no difference in response comparing treatment-na?ve and treatment-experienced patients. Three episodes of virological breakthrough occurred in the setting of noncompliance. Tenofovir therapy was well tolerated.CONCLUSION Tenofovir is an efficacious, safe and well-tolerated treatment in an Australian real-world tertiary care setting. Our data are similar to the reported experience from registration trials.Grace C Lovett Tin Nguyen David M Iser Jacinta A Holmes Robert Chen Barbara Demediuk Gideon Shaw Sally J Bell Paul V Desmond Alexander J Thompson 2017World Journal of Hepatology2017,9,1:7
17Analyzing machine learning models to accelerate generation of fundamental materials insights显示文摘Machine learning for materials science envisions the acceleration of basic science research through automated identification of key data relationships to augment human interpretation and gain scientific understanding.A primary role of scientists is extraction of fundamental knowledge from data,and we demonstrate that this extraction can be accelerated using neural networks via analysis of the trained data model itself rather than its application as a prediction tool.Convolutional neural networks excel at modeling complex data relationships in multi-dimensional parameter spaces,such as that mapped by a combinatorial materials science experiment.Measuring a performance metric in a given materials space provides direct information about(locally)optimal materials but not the underlying materials science that gives rise to the variation in performance.By building a model that predicts performance(in this case photoelectrochemical power generation of a solar fuels photoanode)from materials parameters(in this case composition and Raman signal),subsequent analysis of gradients in the trained model reveals key data relationships that are not readily identified by human inspection or traditional statistical analyses.Human interpretation of these key relationships produces the desired fundamental understanding,demonstrating a framework in which machine learning accelerates data interpretation by leveraging the expertize of the human scientist.We also demonstrate the use of neural network gradient analysis to automate prediction of the directions in parameter space,such as the addition of specific alloying elements,that may increase performance by moving beyond the confines of existing data.Mitsutaro Umehara Helge S.Stein Dan Guevarra Paul F.Newhouse David A.Boyd John M.Gregoire 2019npj Computational Materials2019,,1:7
18Final anatomic and visual outcomes appear independent of duration of silicone oil intraocular tamponade in complex retinal detachment surgery显示文摘AIM: To report anatomic and visual outcomes following silicone oil removal in a cohort of patients with complex retinal detachment, to determine association between duration of tamponade and outcomes and to compare patients with oil removed and those with oil in situ in terms of demographic, surgical and visual factors. METHODS: We reported a four years retrospective case series of 143 patients with complex retinal detachments who underwent intraocular silicone oil tamponade. Analysis between anatomic and visual outcomes, baseline demographics, duration of tamponade and number of surgical procedures were carried out using Fisher's exact test and unpaired two-tailed t-test. RESULTS: One hundred and six patients(76.2%) had undergone silicone oil removal at the time of review with 96 patients(90.6%) showing retinal reattachment following oil removal. Duration of tamponade was not associated with final reattachment rate or with a deterioration in best corrected visual acuity(BCVA). Patients with oil removed had a significantly better baseline and final BCVA compared to those under oil tamponade(P=0.0001, <0.0001 respectively). CONCLUSION: Anatomic and visual outcomes in this cohort are in keeping with those reported in the literature. Favorable outcomes were seen with oil removal but duration of oil tamponade does not affect final attachment rate with modern surgical techniques and should be managed on a case by case basis.Maedbh Rhatigan Elizabeth Mc Elnea Patrick Murtagh Kirk Stephenson Elaine Harris Paul Connell David Keegan 2018International Journal of Ophthalmology(English edition)2018,11,1:7
19Regulation of epithelium-specific Ets-like factors ESE-1 and ESE-3 in airway epithelial cells: potential roles in airway inflammation显示文摘航线发炎是许多呼吸障碍的特点,例如气喘和膀胱的纤维变性。在发炎触发的航线基因表示的变化在这些疾病的致病起一个关键作用。基因连接研究建议 ESE-2 和 ESE-3,编码上皮特定的 Ets-domain-containing 抄写因素,是候选人气喘危险性基因。我们这里报导 et 家庭抄写因素 ESE-1 的另一个成员的表示,以及 ESE-3,起来在支气管的上皮的房间线由煽动性的 cytokines interleukin-1beta (IL-1beta ) 和肿瘤坏死 factor-alpha (TNF-alpha ) 调整了。有 IL-1beta 和 TNF-alpha 的这些房间的处理为 ESE-1 和 ESE-3 导致了信使 rna 表示的戏剧的增加。我们证明导致的表示被抄写因素 NF-kappaB 的激活调停。我们描绘了 ESE-1 和 ESE-3 倡导者并且识别了为导致 cytokine 的表达式被要求的 NF-kappaB 有约束力的序列。另外,我们也表明那 ESE-1 在上面调整 ESE-3 表示, down 由 cytokines 调整它的自己的正式就职。最后,我们在 Elf3 显示出那(对人的 ESE-1 相应) 猛烈老鼠,煽动性的 cytokine interleukin-6 (IL-6 ) 的表示是调整的 down。我们的调查结果建议 ESE-1 和 ESE-3 在航线发炎起一个重要作用。Jing Wu Rongqi Duan Huibi Cao Deborah Field Catherine M Newnham David R Koehler Noe Zamel Melanie A Pritchard Paul Hertzog Martin Post A Keith Tanswell Jim Hu 2008Cell Research2008,18,6:6
20Protective role of PI3-kinase/Akt/eNOS signaling in mechanical stress through inhibition of p38 mitogenactivated protein kinase in mouse lung显示文摘Xin-qi PENG Mahendra DAMARLA Jarrett SKIRBALL Stephanie NONAS Xiao-ying WANG Eugenia J HAN Emile J HASAN Xuan CAO Adel BOUEIZ Rachel DAMICO Rubin M TUDER Alfred M SClUTO Dana R ANDERSON Joe GNGARCIA David A KASS Paul M HASSOUN Jun-tian ZHANG 2010Acta Pharmacologica Sinica2010,31,2:6
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