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1145篇 您的检索式:作者名="PINEDA"
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1The evolution of corneal and refractive surgery with the femtosecond laser显示文摘The use of femtosecond lasers has created an evolution in modern corneal and refractive surgery.With accuracy,safety,and repeatability,eye surgeons can utilize the femtosecond laser in almost all anterior refractive procedures;laser in situ keratomileusis(LASIK),small incision lenticule extraction(SMILE),penetrating keratoplasty(PKP),insertion of intracorneal ring segments,anterior and posterior lamellar keratoplasty(Deep anterior lamellar keratoplasty(DALK)and Descemet's stripping endothelial keratoplasty(DSEK)),insertion of corneal inlays and cataract surgery.As the technology matures,it will push surgical limits and open new avenues for ophthalmic intervention in areas not yet explored.As we witness the transition from femto-LASIK to femto-cataract surgery it becomes obvious that this innovation is here to stay.This article presents some of the most relevant advances of femtosecond lasers to modern corneal and refractive surgery.Antonis Aristeidou Elise V.Taniguchi Michael Tsatsos Rodrigo Muller Colm McAlinden Roberto Pineda Eleftherios I.Paschalis 2015Eye and Vision2015,2,1:9
2水力耦合作用下非饱和压实黄土细观变形机制试验研究显示文摘对两种状态的压实黄土进行了一维常含水率压缩试验及常应力增湿试验,结合压汞法及扫描电镜等细观结构研究手段,对压缩以及增湿作用下压实黄土的细观结构演化进行分析,进一步对压实黄土在水力耦合作用下的细观变形机制进行探讨。研究结果表明:常含水率压缩下,压实黄土饱和度增大,可以在进一步压缩下发展为饱和土的固结过程;细观层面上非饱和压实黄土的压缩是其大孔隙在应力作用下塌陷减少的结果,而小孔隙分布在压缩中不受影响;常竖向应力下增湿,压实黄土的湿化变形随着竖向应力的增大呈现先增大后减小的趋势,最大湿化应变发生在压实应力附近。细观层面上,湿化作用下,颗粒及团聚体之间的黏结弱化,发生崩塌滑移,大孔隙塌陷减小而小孔隙增多,湿化后土体结构趋于均匀稳定。而压实黄土的蠕变也是在恒定荷载作用下土颗粒或团聚体的蠕滑、大孔隙进一步压缩引起的。结合研究结果,进一步从细观角度对黄土高填方施工期及工后期沉降进行总结阐述。葛苗苗 李宁 盛岱超 朱才辉 PINEDA Jubert 2021岩土力学2021,42,9:8
3Adjuvant therapy sparing in rectal cancer achieving complete response after chemoradiation显示文摘AIM:To evaluate the long-term results of conventional chemoradiotherapy and laparoscopic mesorectal excision in rectal adenocarcinoma patients without adjuvant therapy.METHODS:Patients with biopsy-proven adenocarcinoma of the rectum staged cT3-T4 by endoscopic ultrasound or magnetic resonance imaging received neoadjuvant continuous infusion of 5-fluorouracil for five weeks and concomitant radiotherapy.Laparoscopic surgery was planned after 5-8 wk.Patients diagnosed with ypT0N0 stage cancer were not treated with adjuvant therapy according to the protocol.Patients with ypT1-2N0 or ypT3-4 or N+were offered 5-fluorouracil-based adjuvant treatment on an individual basis.An external cohort was used as a reference for the findings.RESULTS:One hundred and seventy six patients were treated with induction chemoradiotherapy and 170underwent total mesorectal excision.Cancer staging of ypT0N0 was achieved in 26/170(15.3%)patients.After a median follow-up of 58.3 mo,patients withypT0N0 had five-year disease-free and overall survival rates of 96%(95%CI:77-99)and 100%,respectively.We provide evidence about the natural history of patients with localized rectal cancer achieving a complete response after preoperative chemoradiation.The inherent good prognosis of these patients will have implications for clinical trial design and care of patients.CONCLUSION:Withholding adjuvant chemotherapy after complete response following standard neoadjuvant chemoradiotherapy and laparoscopic mesorectal excision might be safe within an experienced multidisciplinary team.Xabier García-Albéniz Rosa Gallego Ralf Dieter Hofheinz Gloria Fernández-Esparrach Juan Ramón Ayuso-Colella Josep Antoni Bombí Carles Conill Miriam Cuatrecasas Salvadora Delgado Angels Ginés Rosa Miquel Mario Pagés Estela Pineda Verónica Pereira Aarón Sosa Oscar Reig Iván Victoria Luis Feliz Antonio María de Lacy Antoni Castells Iris Burkholder Andreas Hochhaus Joan Maurel 2014World Journal of Gastroenterology2014,20,42:5
4Carbonaceous residues from biomass gasification as catalysts for biodiesel production显示文摘Tars and alkali ashes from biomass gasification processes currently constitute one of the major problems in biomass valorisation,generating clogging of filters and issues related with the purity of syngas production.To date,these waste residues find no useful applications and they are generally disposed upon generation in the gasification process.A detailed analysis of these residues pointed out the presence of high quantities of Ca(>30 wt%).TG experiments indicated that a treatment under air at moderate temperatures(400-800 C) decomposed the majority of carbon species,while XRD indicated the presence of a crystalline CaO phase.CaO enriched valorized materials turned out to be good heterogeneous catalysts for biodiesel production from vegetable oils,providing moderate to good activities(50%-70% after 12 h) to fatty acid methyl esters in the transesterification of sunflower oil with methanol.Rafael Luque Antonio Pineda Juan C. Colmenares Juan M. Campelo Antonio A. Romero Juan Carlos Serrano-Ruiz Luisa F. Cabeza Jaime Cot-Gores 2012Journal of Natural Gas Chemistry2012,21,3:4
5The diagnosis, treatment, and follow-up of cesarean scar pregnancy显示文摘Ilan E. Timor-Tritsch Ana Monteagudo Rosalba Santos Tanya Tsymbal Grace Pineda Alan A. Arslan 2012American Journal of Obstetrics and Gynecology2012,,1:3
6Using electricity options to hedge against financial risks of power producers显示文摘As a consequence of competition in electricity markets,a wide variety of financial derivatives have emerged to allow market agents to hedge against risks.Electricity options and forward contracts constitute adequate instruments to manage the financial risks pertaining to price volatility or unexpected unit failures faced by power producers.A multi-stage stochastic model is described in this tutorial paper to determine the optimal forward and option contracting decisions for a risk-averse power producer.The key features of electricity options to reduce both price and availability risks are illustrated by using two examples.Salvador PINEDA Antonio J.CONEJO 2013Journal of Modern Power Systems and Clean Energy2013,1,2:3
7Laparoscopic Cholecystectomy in the Cirrhotic Patient: Predictors of Outcome显示文摘Ralph C. Quillin Justin M. Burns Jaime A. Pineda Dennis Hanseman Steven M. Rudich Michael J. Edwards Amit D. Tevar 2012Surgery2012,,:2
8Spectrophotometric Quantitation of Antioxidant Capacity through the Formation of a Phosphomolybdenum Complex: Specific Application to the Determination of Vitamin E显示文摘Pilar Prieto Manuel Pineda Miguel Aguilar 1999Analytical Biochemistry1999,,2:2
9Effective use of FibroTest to generate decision trees in hepatitis C显示文摘AIM:To assess the usefulness of FibroTest to forecast scores by constructing decision trees in patients with chronic hepatitis C.METHODS:We used the C4.5 classification algorithm to construct decision trees with data from 261 patients with chronic hepatitis C without a liver biopsy.The FibroTest attributes of age,gender,bilirubin,apolipoprotein,haptoglobin,α2 macroglobulin,and γ-glutamyl transpeptidase were used as predictors,and the FibroTest score as the target.For testing,a 10-fold cross validation was used.RESULTS:The overall classification error was 14.9%(accuracy 85.1%).FibroTest's cases with true scores of F0 and F4 were classified with very high accuracy(18/20 for F0,9/9 for F0-1 and 92/96 for F4) and the largest confusion centered on F3.The algorithm produced a set of compound rules out of the ten classification trees and was used to classify the 261 patients.The rules for the classification of patients in F0 and F4 were effective in more than 75% of the cases in which they were tested.CONCLUSION:The recognition of clinical subgroups should help to enhance our ability to assess differences in fibrosis scores in clinical studies and improve our understanding of fibrosis progression.Dana Lau-Corona Luís Alberto Pineda Héctor Hugo Avilés Gabriela Gutiérrez-Reyes Blanca Eugenia Farfan-Labonne Rafael Núez-Nateras Alan Bonder Rosalinda Martínez-García Clara Corona-Lau Marco Antonio Olivera-Martínez Maria Concepción Gutiérrez-Ruiz Guillermo Robles-Díaz David Kershenobich 2009World Journal of Gastroenterology2009,15,21:2
10Spectrophotometric Quantitation of Antioxidant Capacity through the Formation of a Phosphomolybdenum Complex: Specific Application to the Determination of Vitamin E显示文摘Pilar Prieto Manuel Pineda Miguel Aguilar 1999Analytical Biochemistry1999,,2:2
11Wetting study of hydrophobic membranes via liquid entry pressure measurements with aqueous alcohol solutions 显示文摘Garcia-Payo M C Izquierdo-Gil M A Femandez- Pineda C 2000J Colloid Interface Sci2000,230,2:1
12Premature myocardial infarction: clinical profile and angiographic findings 显示文摘Pineda J Marin F 2008Int J Cardiol2008,126,1:1
13Noisy continuous- opinion dynamics显示文摘Pineda M Toral R Hernandez-Garcia E 2009Journal of Statistical Mechanics: Theory and Experiment2009,,:1
14Association of Serum Bilirubin with Ischemic Stroke Outcomes显示文摘Sandra Pineda Oh Young Bang Jeffrey L. Saver Sidney Starkman Susan W. Yun David S. Liebeskind Doojin Kim Latisha K. Ali Samir H. Shah Bruce Ovbiagele 2008Journal of Stroke and Cerebrovascular Diseases2008,,3:1
15Condylar reconstruction by oblique sliding vertical-ramus osteotomy显示文摘Martinez-Lage JL Gonzalez J Pineda A 2004J Craniomaxillofac Surg2004,32,3:1
16Prevalence estimations of attention-deficit/hyperactivity disorder:differentions diagnoses and comorbidities in a Colombian sample显示文摘Pineda DA Lopera F Palacio JD 2003Int J Neurosci2003,113,1:1
17Pravastatin immunomod- ulates IL-6 and C-reactive protein, but not IL-1 and TNF- alpha, in cardio-pulmonary bypass显示文摘Caorsi C Pineda F Munoz C 2008Eur Cytokine Ne- tw2008,19,2:1
18Mesenchymal cel -based repair of large,ful -thickness defects of articular cartilage显示文摘Wakitani S Goto T Pineda SJ 0,,04:1
19Simvastatin is the statin that most efficiently protects against kainate-induced excitotoxicity and memory impairment显示文摘Ramirez C Tercero I Pineda A 0,,:1
20Long-Term Outcome of Aortic Dissection With Patent False Lumen: Predictive Role of Entry Tear Size and Location显示文摘Artur Evangelista Armando Salas Aida Ribera Ignacio Ferreira-González Hug Cuellar Victor Pineda Teresa González-Alujas Bart Bijnens Gaietà Permanyer-Miralda David Garcia-Dorado 2012Circulation2012,,25:1
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