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3689篇 您的检索式:作者名="Papadopoulos"
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1Petawatt and exawatt class lasers worldwide显示文摘In the 2015 review paper‘Petawatt Class Lasers Worldwide’a comprehensive overview of the current status of highpower facilities of>200 TW was presented.This was largely based on facility specifications,with some description of their uses,for instance in fundamental ultra-high-intensity interactions,secondary source generation,and inertial confinement fusion(ICF).With the 2018 Nobel Prize in Physics being awarded to Professors Donna Strickland and Gerard Mourou for the development of the technique of chirped pulse amplification(CPA),which made these lasers possible,we celebrate by providing a comprehensive update of the current status of ultra-high-power lasers and demonstrate how the technology has developed.We are now in the era of multi-petawatt facilities coming online,with 100 PW lasers being proposed and even under construction.In addition to this there is a pull towards development of industrial and multi-disciplinary applications,which demands much higher repetition rates,delivering high-average powers with higher efficiencies and the use of alternative wavelengths:mid-IR facilities.So apart from a comprehensive update of the current global status,we want to look at what technologies are to be deployed to get to these new regimes,and some of the critical issues facing their development.Colin N.Danson Constantin Haefner Jake Bromage Thomas Butcher Jean-Christophe FChanteloup Enam A.Chowdhury Almantas Galvanauskas Leonida A.Gizzi Joachim Hein David I.Hillier Nicholas W.Hopps Yoshiaki Kato Efim A.Khazanov Ryosuke Kodama Georg Korn Ruxin Li Yutong Li Jens Limpert Jingui Ma Chang Hee Nam David Neely Dimitrios Papadopoulos Rory R.Penman Liejia Qian Jorge J.Rocca andrey A.Shaykin Craig W.Siders Christopher Spindloe Sándor Szatmári Raoul M.G.M.Trines Jianqiang Zhu Ping Zhu Jonathan D.Zuegel 2019High Power Laser Science and Engineering2019,7,3:33
2《过敏性鼻炎及其对哮喘的影响(ARIA)》指南2019版过敏性鼻炎管理路径(中国版)显示文摘2018年12月3日,慢性疾病管理大会在巴黎召开,经过与会的过敏科学及气道疾病领域的专家和患者组织讨论,针对未来鼻炎和哮喘的管理,推荐采用真实世界综合管理路径评估系统,旨在实现数字化、综合化、以人为本的管理。本文是该文件的摘要版,其中也介绍了中国过敏性鼻炎和哮喘的流行状况以及《过敏性鼻炎及其对哮喘的影响》(ARIA)在中国应用的具体情况。Bachert C Fokkens WJ Haahtela T Hellings PH Klimek L Papadopoulos N Pham-Thi N PfaarO Valiulis A Ventura MT Onorato G Czarlewski W Bedbrook A Bousquet J 王向东(编译) 王成硕(编译) 郑铭(编译) 杜崑(编译) 张罗(编译) 2019中国耳鼻咽喉头颈外科2019,26,12:23
3Helicobacter pylori neutrophil activating protein as target for new drugs against H.pylori inflammation显示文摘Helicobacter pylori(H.pylori) infection is among the most common human infections and the major risk factor for peptic ulcer disease and gastric cancer.With-in this work we present the implication of C-terminal region of H.pylori neutrophil activating protein in the stimulation of neutrophil activation as well as the evi-dence that the C-terminal region of H.pylori activating protein is indispensable for neutrophil adhesion to endothelial cells,a step necessary to H.pylori inflammation.In addition we show that arabino galactan proteins derived from chios mastic gum,the natural resin of the plant Pistacia lentiscus var.Chia inhibit neutrophil activation in vitro.Theodora Choli-Papadopoulou Filippos Kottakis Georgios Papadopoulos Stefanos Pendas 2011World Journal of Gastroenterology2011,17,21:5
4TYMS/KRAS/BRAF molecular profiling predicts survival following adjuvant chemotherapy in colorectal cancer显示文摘BACKGROUND Patients with stage II-III colorectal cancer (CRC) treated with adjuvant chemotherapy, gain a 25% survival benefit. In the context of personalized medicine, there is a need to identify patients with CRC who may benefit from adjuvant chemotherapy. Molecular profiling could guide treatment decisions in these patients. Thymidylate synthase (TYMS) gene polymorphisms, KRAS and BRAF could be included in the molecular profile under consideration. AIM To investigate the association of TYMS gene polymorphisms, KRAS and BRAF mutations with survival of CRC patients treated with chemotherapy.METHODS A retrospective study studied formalin-fixed paraffin-embedded tissues (FFPEs) of consecutive patients treated with adjuvant chemotherapy during January/2005-January/2007. FFPEs were analysed with PCR for the detection of TYMS polymorphisms, mutated KRAS (mKRAS) and BRAF (mBRAF). Patients were classified into three groups (high, medium and low risk) according to 5’UTR TYMS polymorphisms Similarly, based on 3’UTR polymorphism ins/loss of heterozygosity (LOH) patients were allocated into two groups (high and low risk of relapse, respectively). Cox regression models examined the associated 5- year survival outcomes. RESULTS One hundred and thirty patients with early stage CRC (stage I-II: 55 patients;stage III 75 patients;colon: 70 patients;rectal: 60 patients) were treated with surgery and chemotherapy. The 5-year disease free survival and overall survival rate was 61.6% and 73.9% respectively. 5’UTR polymorphisms of intermediate TYMS polymorphisms (2RG/3RG, 2RG/LOH, 3RC/LOH) were associated with lower risk for relapse [hazard ratio (HR) 0.320, P = 0.02 and HR 0.343, P = 0.013 respectively] and death (HR 0.368, P = 0.031 and HR 0.394, P = 0.029 respectively). The 3’UTR polymorphism ins/LOH was independently associated with increased risk for disease recurrence (P = 0.001) and death (P = 0.005). mBRAF (3.8% of patients) was associated with increased risk of death (HR 4.500, P = 0.022) whereas mKRAS (39% of patients) not. CONCLUSION Prospective validating studies are required to confirm whether 2RG/3RG, 2RG/LOH, 3RC/LOH, absence of ins/LOH and wild type BRAF may indicate patients at lower risk of relapse following adjuvant chemotherapy.Anastasios Ntavatzikos Aris Spathis Paul Patapis Nikolaos Machairas Georgia Vourli George Peros Iordanis Papadopoulos Ioannis Panayiotides Anna Koumarianou 2019World Journal of Gastrointestinal Oncology2019,11,7:5
5Main controversies in breast cancer显示文摘In this article, we have reviewed available evidence for diagnosis, treatment, and follow-up in female breast cancer(BC). Into daily clinical practice some controversies are occurred. Especially, in the diagnosis field, despite the fact that the optimal age in which screening mammography should start is a subject of intense controversy, there is a shift toward the beginning at the age of 40 although it is suggested that the net benefit is small for women aged 40 to 49 years. In addition, a promising tool in BC screening seems to be breast tomosynthesis. Other tools such as 3D ultrasound and shear wave elastography(SWE) are full of optimism in BC screening although ultrasonography is not yet a first-line screening method and there is insufficient evidence to recommend the systemic use of the SWE for BC screening. As for breast magnetic resonance imaging(MRI), even if it is useful in BC detection in women who have a strong family history of BC, it is not generally recommended as a screening tool. Moreover, based on the lack of randomized clinical trials showing a benefit of presurgical breast MRI in overall survival, it's integration into breast surgical operations remainsdebatable. Interestingly, in contrast to fine needle aspiration, core biopsy has gained popularity in presurgical diagnosis. Furthermore, after conservative surgery in patients with positive sentinel lymph nodes, the recent tendency is the shift from axillary dissection to axillary conserving strategies. While the accuracy of sentinel lymph node after neoadjuvant chemotherapy and second BC surgery remains controversial, more time is needed for evaluation and for determining the optimal interval between the two surgeries. Additionally, in the decision between immediate or delayed breast reconstruction, there is a tendency in the immediate use. In the prevention of BC, the controversial issue between tamoxifen and raloxifene becomes clear with raloxifene be more profitable through the toxicities of tamoxifen. However, the prevention of bone metastasis with bisphosphonates is still conflicting. Last but not least, in the follow-up of BC survivors, mammography, history and physical examination are the means of an early detection of BC recurrence.Stephane Zervoudis George Iatrakis Eirini Tomara Anastasia Bothou George Papadopoulos George Tsakiris 2014World Journal of Clinical Oncology2014,5,3:5
6Hepatitis B-specific T helper cell responses in uninfected infants born to HBsAg^(+)/HBeAg^(-) mothers显示文摘Vertically transmitted hepatitis B virus(HBV)usually causes chronic infection.While combined active–passive immunoprophylaxis in neonates of hepatitis B surface antigen-positive(HBsAg1)mothers at birth prevents vertical transmission,it is not yet clear whether neonates encounter the virus or its products in the absence of hepatitis B e antigen(HBeAg).This study was undertaken to investigate HBV antigen-specific T-cell responses in vaccinated neonates of HBsAg1/HBeAg2 mothers.Blood was collected from 46 HBsAg1 mothers and their neonates(subjects)as well as 24 age-matched controls.All neonates of HBsAg1 mothers received appropriate immunoprophylaxis,and HBsAg and hepatitis B surface antibody(anti-HBs)antibody titers were determined after completion of the vaccination course.Peripheral blood mononuclear cells(PBMCs)from infants at birth,1 and 6 months of age were stimulated with recombinant HBsAg,hepatitis B core antigen(HBcAg)and mitogen,and interferon(IFN)-c concentrations were determined by ELISA.HBsAg-induced production of IL-2,IL-5,IL-6 and IL-10 was assessed using a cytometric bead array kit on cells from 6-month-old neonates post-vaccination.All neonates were HBsAg2 and responded to vaccination.Increased IFN-c production following HBcAg stimulation was seen in 30.4%of neonates born to HBsAg1/HBeAg2 mothers.Subjects demonstrated significantly higher IL-2 production post-HBsAg stimulation,whereas IL-5,IL-6 and IL-10 cytokine responses were not significantly different.Almost one-third of uninfected neonates developed viral antigen-induced IFN-c production,suggesting that they had been exposed to virions or viral derivatives.This encounter,however,did not impair their T-cell responses to vaccination.Lemonica Koumbi Antonio Bertoletti Vassiliki Anastasiadou Maria Machaira Winnie Goh Nikolaos G Papadopoulos Dimitris A Kafetzis Vassiliki Papaevangelou 2010Cellular & Molecular Immunology2010,7,6:4
7Subtalar dislocation without associated fractures: Case report and review of literature显示文摘Isolated subtalar dislocations are unusual injuries due to the inherent instability of the talus. Subtalar dislocations are frequently associated with fractures of the malleoli, the talus, the calcaneus or the fifth metatarsal. Four types of subtalar dislocation have been described according to the direction of the foot in relation to the talus: medial, lateral posterior and anterior. It has been shown that some of these dislocations may spontaneously reduce. A rare case of a 36-year-old male patient who sustained a closed medial subtalar dislocation without any associated fractures of the ankle is reported. The patient suffered a pure closed medial subtalar dislocation that is hardly reported in the literature. Six months after injury the patient did not report any pain, had a satisfactory range of motion, and no signs of residual instability or early posttraumatic osteoarthritis. The traumatic mechanism, the treatment options, and the importance of a stable and prompt closed reduction and early mobilization are discussed.Dionisios Giannoulis Dimitrios V Papadopoulos Marios G Lykissas Panagiotis Koulouvaris Ioannis Gkiatas Alexandros Mavrodontidis 2015World Journal of Orthopedics2015,6,3:4
8Recent Developments in the Treatment of Wet Age-related Macular Degeneration显示文摘Age-related macular degeneration(AMD)is the most common cause of irreversible blindness and visual impairment in individuals over the age of 50 years in western societies.More than 25 million people currently suffer from this illness in the world,with an additional 500000 every year,approximately.It is a multifactorial ocular disease that affects the maculae due to a late-onset progressive neurodegeneration and dysfunction of photoreceptors and retinal pigment epithelium(RPE).There are many subtypes of AMD but basically two broad forms:the nonneovascular(dry,nonexudative)and neovascular(wet,exudative).Exudative AMD is the less common form(about 15%)but tends to progress more rapidly.At the moment,wet AMD is treated primarily on the basis of anti-vascular endothelial growth factor(VEGF)agents,which have led to massive improvement in the prognosis of the disease since they were first introduced.This article focuses on the latest treatment approaches to neovascular AMD.An extensive literature review was performed in order to illustrate the effectiveness of current and future anti-VEGF agents as well as the landmark clinical studies that have been carried out to establish these drugs as a gold standard in the therapy of wet AMD.Zois Papadopoulos 2020Current Medical Science2020,40,5:4
9Long-term behavior of positive solutions of an exponentially self-regulating system of difference equations显示文摘N. Psarros G. Papaschinopoulos K. B. Papadopoulos 2017International Journal of Biomathematics2017,10,3:3
10Water movements in the brain: role of aquaporins显示文摘Matthew J. Tait Samira Saadoun B. Anthony Bell Marios C. Papadopoulos 2007Trends in Neurosciences2007,,1:3
11Resectability of pancreatic adenocarcinoma: assessment using multidetector-row computed tomography with multiplanar reformations显示文摘Elena Manak Susanne Merkel Peter Klein Thomas Papadopoulos Werner A. Bautz Ulrich Baum 2009Abdominal Imaging2009,,1:3
12评“两次希腊大地震的预测”显示文摘Gerassimos A Papadopoulos 左玉玲 2010国际地震动态2010,,7:3
13Safety aware fuzzy longitudinal controller for automated vehicles显示文摘Vehicle automation holds significant opportunities in the efforts for safer road traffic.Even lower levels of automation like adaptive cruise control(ACC)systems have great potential.Apart from safety benefits,ACC systems could improve the efficiency of traffic networks.However,contemporary ACC systems are designed to be comfortable,but not guaranteed to be safe.Moreover,according to recent literature studies,they have been found to be conservative and string unstable,with traffic oscillations being amplified when traveling downstream.Due to those issues,severe problems can arise in the traffic flow and the efficiency of road traffic networks may deteriorate.Automating the vehicles’longitudinal movement through ADAS systems offers new opportunities in improving the safety conditions on the roads by designing more consistent controllers.In the present paper,a fuzzy controller is developed for automated longitudinal vehicle control.The controller is validated through simulation and real-world data of ACC systems that are currently available in the market.Using fuzzy surrogate safety metrics,the controller becomes aware of the safety level of any situation and can react properly.Moreover,the driving behavior is efficient for the traffic flow,comfortable and string stable,dampening traffic shockwaves that travel upstream.Results prove the robustness of the proposed solution.Konstantinos Mattas George Botzoris Basil Papadopoulos 2021Journal of Traffic and Transportation Engineering(English Edition)2021,8,4:2
14Use of a device that applies external kneading-like force on the abdomen for treatment of constipation显示文摘AIM: To evaluate the efficacy of a recently developed device that applies kneading-like motion on the abdomen in improving constipation in elderly long-term care patients.METHODS: Thirty constipated elderly patients were randomly selected from two nursing homes. They were instructed to use the device once daily for 20 min. Rate of bowel movements, volume and consistency of stool and the use of laxantia were all recorded during a 3-wk baseline period and for 12-wk treatment period. Colonic transit time (CTT) was measured in 13 patients by radiopaque markers during the baseline and at the end of treatment.RESULTS: Bowel movement rate (BM/week) increased from 1.4±0.4 BM/wk during baseline to 3.9±0.8 BM/wk during treatment (P<5.0×10-7). Stool amount that was 'low' in 30 patients during baseline increased in 21 patients at the end of the study period (χ2 = 19.048-P =1.3×10-5). Stool consistency, that was 'hard' in 25 patients and 'soft' in 5 patients during baseline, ameliorated in 23 patients at the end of the study (only 2 patients referred 'hard' stool) (χ2= 21.043-P = 4.0×10-6). The mean baseline CTT measured was 92.3±32.3 h at baseline and decreased to 49.4±31.3 h during the study period (P = 0.000208). No side effects were observed during the study period.CONCLUSION: External mechanical vibration of the abdomen reduced CTT and helped to relieve severe constipation in elderly constipated patients.Konstantinos Mimidis David Galinsky Efraim Rimon Vassilios Papadopoulos Yehuda Zicherman Dimitrios Oreopoulos 2005World Journal of Gastroenterology2005,11,13:2
15Role of innovative 3D printing models in the management of hepatobiliary malignancies显示文摘Three-dimensional (3D) printing has recently emerged as a new technique in various liver-related surgical fields. There are currently only a few systematic reviews that summarize the evidence of its impact. In order to construct a systematic literature review of the applications and effects of 3D printing in liver surgery, we searched the PubMed, Embase and ScienceDirect databases for relevant titles, according to the PRISMA statement guidelines. We retrieved 162 titles, of which 32 met the inclusion criteria and are reported. The leading application of 3D printing in liver surgery is for preoperative planning. 3D printing techniques seem to be beneficial for preoperative planning and educational tools, despite their cost and time requirements, but this conclusion must be confirmed by additional randomized controlled trials.Peter Bangeas Vassilios Tsioukas Vasileios N Papadopoulos Georgios Tsoulfas 2019World Journal of Hepatology2019,11,7:2
16Determination of marine gamma activity and study of the minimum detectable activity (MDA) in 4pi geometry based on Monte Carlo simulation显示文摘C. Bagatelas C. Tsabaris M. Kokkoris C. T. Papadopoulos R. Vlastou 2010Environmental Monitoring and Assessment . 2010 (1-4)2010,,1:2
17Cardiovascular efficacy and safety of dipeptidyl peptidase-4 inhibitors:A meta-analysis of cardiovascular outcome trials显示文摘BACKGROUND Dipeptidyl peptidase-4(DPP-4)inhibitors are a generally safe and well tolerated antidiabetic drug class with proven efficacy in type 2 diabetes mellitus(T2DM).Recently,a series of large,randomized controlled trials(RCTs)addressing cardiovascular outcomes with DPP-4 inhibitors have been published.AIM To pool data from the aforementioned trials concerning the impact of DPP-4 inhibitors on surrogate cardiovascular efficacy outcomes and on major cardiac arrhythmias.METHODS We searched PubMed and grey literature sources for all published RCTs assessing cardiovascular outcomes with DPP-4 inhibitors compared to placebo until October 2020.We extracted data concerning the following“hard”efficacy outcomes:fatal and non-fatal myocardial infarction,fatal and non-fatal stroke,hospitalization for heart failure,hospitalization for unstable angina,hospitalization for coronary revascularization and cardiovascular death.We also extracted data regarding the risk for major cardiac arrhythmias,such as atrial fibrillation,atrial flutter,ventricular fibrillation and ventricular tachycardia.RESULTS We pooled data from 6 trials in a total of 52520 patients with T2DM assigned either to DPP-4 inhibitor or placebo.DPP-4 inhibitors compared to placebo led to a non-significant increase in the risk for fatal and non-fatal myocardial infarction[risk ratio(RR)=1.02,95%CI:0.94-1.11,I2=0%],hospitalization for heart failure(RR=1.09,95%CI:0.92-1.29,I2=65%)and cardiovascular death(RR=1.02,95%CI:0.93-1.11,I2=0%).DPP-4 inhibitors resulted in a non-significant decrease in the risk for fatal and non-fatal stroke(RR=0.96,95%CI:0.85-1.08,I2=0%)and coronary revascularization(RR=0.99,95%CI:0.90-1.09,I2=0%),Finally,DPP-4 inhibitors demonstrated a neutral effect on the risk for hospitalization due to unstable angina(RR=1.00,95%CI:0.85-1.18,I2=0%).As far as cardiac arrhythmias are concerned,DPP-4 inhibitors did not significantly affect the risk for atrial fibrillation(RR=0.95,95%CI:0.78-1.17,I2=0%),while they were associated with a significant increase in the risk for atrial flutter,equal to 52%(RR=1.52,95%CI:1.03-2.24,I2=0%).DPP-4 inhibitors did not have a significant impact on the risk for any of the rest assessed cardiac arrhythmias.CONCLUSION DPP-4 inhibitors do not seem to confer any significant cardiovascular benefit for patients with T2DM,while they do not seem to be associated with a significant risk for any major cardiac arrhythmias,except for atrial flutter.Therefore,this drug class should not be the treatment of choice for patients with established cardiovascular disease or multiple risk factors,except for those cases when newer antidiabetics(glucagon-like peptide-1 receptor agonists and sodium-glucose cotransporter-2 inhibitors)are not tolerated,contraindicated or not affordable for the patient.Dimitrios Ioannis Patoulias Aristi Boulmpou Eleftherios Teperikidis Alexandra Katsimardou Fotios Siskos Michael Doumas Christodoulos E Papadopoulos Vassilios Vassilikos 2021World Journal of Cardiology2021,13,10:2
18Probabilistic load flow in distribution systems containing dispersed wind power generation 显示文摘Hatziargyriou N D Karakatsanis T S Papadopoulos M 1993IEEE Trans Power Systems1993,8,:2
19CFD analysis of journal bearing hydrodynamic lubrication by Bingham lubricant显示文摘K.P. Gertzos P.G. Nikolakopoulos C.A. Papadopoulos 2008Tribology International2008,,12:2
20Tensile and low cycle fatigue behavior of corroded reinforcing steel bars S400显示文摘C.A. Apostolopoulos M.P. Papadopoulos 2006Construction and Building Materials2006,,4:2
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