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105篇 您的检索式:作者名="Rami S"
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1Effect of heat input and filler metals on weld strength of gas tungsten arc welding of AISI 316 weldments显示文摘The present work investigates the effect of filler metals and heat input on weld bead geometry and mechanical properties of alloy316 welded by using GTAW.ER309 L,ER316 L and ERNi Cr Mo-3 filler metals,are applied to study their effect on the weldment.Weld defects are examined using radiographic testing.The mechanical properties of welds are evaluated through uniaxial testing,hardness measuring,and bending test.The mechanical properties and cooling rate decrease with increasing heat input.Tensile strength,yield stress and percentage elongation of weldments using three fillers are determined.Best results are obtained using ERNi Cr Mo-3.Besides,weld nugget area,cooling time and solidification time increases with increasing heat input.Finally,applying bending test on weld samples,cracks,tearing and surface defects are not observed.Essam Ahmed Ramy Ahmed A EL-Nikhaily A R S Essa 2020China Welding2020,29,1:7
2European evidence based consensus for endoscopy in inflammatory bowel disease显示文摘Vito Annese Marco Daperno Matthew D. Rutter Aurelien Amiot Peter Bossuyt James East Marc Ferrante Martin G?tz Konstantinos H. Katsanos Ralf Kie?lich Ingrid Ordás Alessandro Repici Bruno Rosa Shaji Sebastian Torsten Kucharzik Rami Eliakim 2013Journal of Crohn’s and Colitis2013,,12:7
3Two case reports of acute upper gastrointestinal bleeding from duodenal ulcers after Roux-en-Y gastric bypass surgery: Endoscopic diagnosis and therapy by single balloon or push enteroscopy after missed diagnosis by standard esophagogastroduodenoscopy显示文摘The diagnosis and opportunity for endoscopic therapy of gastric or duodenal lesions may be missed at esophagogastroduodenoscopy(EGD) because of technical difficulty in intubating at EGD the postoperatively excluded stomach and proximal duodenum in patients status post Roux-en-Y gastric bypass(RYGB). Two cases are reported of acute upper gastrointestinal bleeding 10 or 11 years status postRYGB, performed for morbid obesity, in which the EGD was non-diagnostic due to failure to intubate the excluded stomach and proximal duodenum, whereas subsequent push enteroscopy or single balloon enteroscopy were diagnostic and revealed 4-cm-wide or 5-mm-wide bulbar ulcers and even permitted application of endoscopic therapy. These case reports suggest consideration of push enteroscopy, or single balloon enteroscopy, where available, in the endoscopic evaluation of acute UGI bleeding in patients status post RYGB surgery when the EGD was non-diagnostic because of failure to intubate these excluded segments.Seifeldin Hakim Srinivas R Rami Reddy Mihaela Batke Gregg Polidori Mitchell S Cappell 2017World Journal of Gastrointestinal Endoscopy2017,9,10:3
4Assessment of lnc RNA GAS5, lnc RNA HEIH, lnc RNA BISPR and its m RNA BST2 as serum innovative non-invasive biomarkers: Recent insights into Egyptian patients with hepatitis C virus type 4显示文摘BACKGROUND Hepatitis C virus(HCV)infection and its consequent complications are undeniably a public health burden worldwide,particularly in Egypt.Emerging evidence suggests that many lncRNAs have relevant roles in viral infections and antiviral responses.AIM To investigate the expression profiles of circulating lncRNAGAS5,lncRNAHEIH,lncRNABISPR and mRNABST2 in naïve,treated and relapsed HCV Egyptian patients,to elucidate relation to HCV infection and their efficacy as innovative biomarkers for the diagnosis and prognosis of HCV GT4.METHODS One hundred and thirty HCV-infected Egyptian patients and 20 healthy controls were included in this study.Serum lncRNAs and mRNABST2 were measured using quantitative real-time polymerase chain reaction(qRT-PCR).RESULTS Our results indicated that serum lncRNAGAS5 and LncRNABISPR were upregulated,whereas mRNA BST2 and LncRNA HEIH were downregulated in naïve patients.In contrast,HCV patients treated with sofosbuvir and simeprevir;with sofosbuvir and daclatasvir;or with sofosbuvir,daclatasvir and ribavirin exhibited lower levels of lncRNAGAS5 and lncRNABISPR with higher mRNABST2 compared to naïve patients.Notably,patients relapsed from sofosbuvir and simeprevir showed higher levels of these lncRNAs with lower mRNABST2 compared to treated patients.LncRNAGAS5 and lncRNABISPR were positively correlated with viral load and ALT at P<0.001,whereas mRNABST2 was negatively correlated with viral load at P<0.001 and ALT at P<0.05.Interestingly,a significant positive correlation between lncRNA HEIH and AFP was observed at P<0.001.CONCLUSION Differential expression of these RNAs suggests their involvement in HCV pathogenesis or antiviral response and highlights their promising roles in diagnosis and prognosis of HCV.Nourhan M El Samaloty Marwa I Shabayek Ramy S Ghait Shohda A El-Maraghy Sherine M Rizk Maha M El-Sawalhi 2020World Journal of Gastroenterology2020,26,2:2
5Split-dose menthol-enhanced PEG vs PEG-ascorbic acid for colonoscopy preparation显示文摘AIM:To compare the efficacy and palatability of 4L polyethylene glycol electrolyte(PEG)plus sugar-free menthol candy(PEG+M)vs reduced-volume 2 L ascorbic acid-supplemented PEG(Asc PEG).METHODS:In a randomized controlled trial setting,ambulatory patients scheduled for elective colonoscopy were prospectively enrolled.Patients were randomized to receive either PEG+M or Asc PEG,both splitdosed with minimal dietary restriction.Palatability was assessed on a linear scale of 1 to 5(1=disgusting;5=tasty).Quality of preparation was scored by assignment-blinded endoscopists using the modified Aronchick and Ottawa scales.The main outcomes were the palatability and efficacy of the preparation.Secondary outcomes included patient willingness to retake the same preparation again in the future and completion of the prescribed preparation.RESULTS:Overall,200 patients were enrolled(100patients per arm).PEG+M was more palatable than Asc PEG(76%vs 62%,P=0.03).Completing the preparation was not different between study groups(91%PEG+M vs 86%Asc PEG,P=0.38)but more patients were willing to retake PEG+M(54%vs 40%respectively,P=0.047).There was no significant difference between PEG+M vs Asc PEG in adequate cleansing on both the modified Aronchick(82%vs77%,P=0.31)and the Ottawa scale(85%vs 74%,P=0.054).However,PEG+M was superior in the left colon on the Ottawa subsegmental score(score0-2:94%for PEG+M vs 81%for Asc PEG,P=0.005)and received significantly more excellent ratings than Asc PEG on the modified Aronchick scale(61%vs 43%,P=0.009).Both preparations performed less well in afternoon vs morning examinations(inadequate:29%vs 15.2%,P=0.02).CONCLUSION:4 L PEG plus menthol has better palatability and acceptability than 2 L ascorbic acidPEG and is associated with a higher rate of excellentpreparations;Clinicaltrial.gov identifier:NCT01788709.Ala I Sharara Ali H Harb Fayez S Sarkis Jean M Chalhoub Rami Badreddine Fadi H Mourad Mahmoud Othman Omar Masri 2015World Journal of Gastroenterology2015,21,6:2
6Peripheral interventions and antiplatelet therapy: Role in current practice显示文摘Peripheral arterial disease(PAD) is a common disorder associated with a high risk of cardiovascular mortality and continues to be under-recognized. The major risk factors for PAD are similar to those for coronary and cerebrovascular disease. Management includes exercise program, pharmacologic therapy and revascularization including endovascular and surgical approach. The optimal revascularization strategy, endovascular or surgical intervention, is often debated due to the paucity of head to head randomized controlled studies. Despite significant advances in endovascular interventions resulting in increased utilization over surgical bypass, significant challenges still remain. Platelet activation and aggregation after percutaneous transluminal angioplasty of atherosclerotic arteries are important risk factors for re-occlusion/restenosis and life-threatening thrombosis following endovascular procedures. Antiplatelet agents are commonly prescribed to reduce the risk of myocardial infarction, stroke and death from cardiovascular causes in patients with PAD. Despite an abundance of data demonstrating efficacy of antiplatelet therapy in coronary artery disease and cerebrovascular disease, there is a paucity of clinical information, clinical guidelines and randomized controlled studies in the PAD population. Hence, data on antiplatelet therapy in coronary interventions is frequently extrapolated to peripheral interventions. The aim of this review article is to elucidate the current data on revascularization and the role and duration of antiplatelet and anticoagulant therapy in re-vascularized lower limb PAD patients.Pahul Singh Yenal Harper Carrie S Oliphant Mohamed Morsy Michelle Skelton Raza Askari Rami N Khouzam 2017World Journal of Cardiology2017,9,7:2
7The Reduction of Nickel Dimethylglyoxime Complex Preadsorhed oft Mereu- ry显示文摘Rami'rez S Gordillo G J Posadas D 1997Journal of E[ectroanalytical Chemistry1997,431,2:1
8Transgenic mouse model of ventricular preexcitation and atrioventricular reentrant tachycardia induced by an AMP-activated protein kinase loss-of-function mutation responsible for Wolff-Parkinson-White syndrome显示文摘Sidhu J S Rajawat Y S Rami T G Gollob M H Wang Z Yuan R 2005Circulation2005,111,:1
9Focal cerebral ischemia induces upregulation of Beclin 1 and autophagy-like cell death显示文摘Rami A Langhagen A Steiger S 2008Neurobiol Dis2008,29,1:1
10Pyridine and phenol removal using natural and synthetic apatites as low cost sorbents: Influence of porosity and surface interactions 显示文摘Bouyarmane H Asri S E Rami A 2010J Hazard Mater2010,181,123:1
11A taxon- omy of botnet behavior, detection, and defense 显示文摘KHAq~FAK S RAMY N R KHAN K R 2014Communications Surveys & Tutorials IEEE2014,16,2:1
12Focal cerebral ischemia induces upregulation of Beclinl and autophagy -like cell death显示文摘Rami A Langhagen A Teiger S 2008Neurobiol Dis2008,29,1:1
13Pyridine and phenol removal using natural and synthetic apatites as low cost sorbents:Influence ofporosity and surface interactions显示文摘Bouyarmane H Asri S E Rami A 2010Journal of Hazardous Materials2010,181,123:1
14Irradiation uniformity of directly driven inertial confinement fusion targets in the context of the shock-ignition scheme显示文摘M Temporal R Ramis B Canaud V Brandon S Laffite B J Le Garrec 2011Plasma Physics and Controlled Fusion2011,,12:1
15Caloric restriction,resveratrol and melatonin:role of SIRT1 and implications for aging and related-diseases显示文摘Ramis M R Esteban S Miralles A 2015Mech Ageing Dev2015,146,:1
16Robust exact pole placement via an LMI based algorithm 显示文摘Ait Rami M E1 Faiz S Benzaouia A 2009IEEE Transactions on Automatic Control2009,54,2:1
17Evaluation of the genotoxic potential of 3-monochloropropane-1,2-diol (3-MCPD) and its metabolites,glycidol and beta-chlorolactic acid,using the single cell gel/comet assay显示文摘El Ramy R Ould Elhkim M Lezmi S 2007Food Chem Toxicol2007,45,1:1
18Downregulation of connexin40 and increased preva- lence of atrial arrhythmias in transgenic mice withcardiac-restricted overexpression of tumor necrosis factor显示文摘SAWAYA S E RAJAWAT Y S RAMI T G 2007Am J Physiol Heart Circ Physiol2007,292,3:1
19Focal cerebral ischemia induces upregulation of Beclin 1 and autophagy-like cell death 显示文摘Rami A Langhagen A Steiger S 2008Neurobi- ol Dis2008,29,1:1
20Focal cerebral ischemia in- duces upregulation of Beciin 1 and autophagy-like cell death显示文摘Rami A Langhagen A Steiger S 2008Neurobiol Dis2008,29,1:1
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