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分娩所致Valsalva视网膜病变治疗方法的探讨(英文)

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国际眼科杂志 2007年第3期7卷 621-622页

作者： Konstantinos i papageorgiou Rashmi G Mathew AlexanderS ioannidis Ajay Sinha Petros S Andreou 英国切姆斯福德Broomfield医院眼科

目的:讨论孕妇Valsalva视网膜病变保守或手术治疗方法的选择。方法:一健康孕妇在自然阴道分娩时,右眼底发生黄斑前玻璃体后界膜下出血,本文报道其保守治疗的效果。结果:右眼发病3wk时积血收缩,视力为眼前手动,但病程6mo时,积血溶解,视... 详细信息

目的:讨论孕妇Valsalva视网膜病变保守或手术治疗方法的选择。方法:一健康孕妇在自然阴道分娩时,右眼底发生黄斑前玻璃体后界膜下出血,本文报道其保守治疗的效果。结果:右眼发病3wk时积血收缩,视力为眼前手动,但病程6mo时,积血溶解,视力恢复至6/5。结论:大多数Valsalva视网膜病变能够自愈。对一些难治性病例,采用Nd:YAG激光行内界膜切开具有一定的效果。而早期玻璃体切除术的增殖膜切除,对预防眼底新生血管膜的发生也具有一定的效果。

关键词： Valsalva视网膜病变孕妇保守治疗

Erdheim-Chester病胸部受累:CT成像结果及其与BRAFV600E突变的关系

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国际医学放射学杂志 2019年第1期 118-119页

作者： S.M.Mirmomen A.Sirajuddin M.Nikpanah R.Symons A.K.Paschall i.papageorgiou 潘海燕 Radiology and imaging Sciences National Institutes of Health Clinical Center

摘要目的探讨Erdheim-Chester病（ECD）的胸部CT表现并评估其与BRAFV600E突变的关系。方法对行胸部CT成像的ECD病人（61例,其中男46例）进行前瞻性研究。由

关键词：成像结果 Erdheim-Chester V600E CT

COViD-19 in pregnancy:Perinatal outcomes and complications

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World Journal of Virology 2024年第4期13卷 62-73页

作者： Karolina Akinosoglou Georgios Schinas Evangelia papageorgiou Theodoros Karampitsakos VasilikiDimakopoulou Eleni Polyzou Argyrios Tzouvelekis Markos Marangos Despoina papageorgiou Nikolaos Spernovasilis George Adonakis Department of Medicine University of PatrasPatras 26504Greece Department of Obstetrics and Gynecology University General Hospital of PatrasPatras 26504Greece Department of Pneumonology University General Hospital of PatrasPatras 26504Greece Department of infectious Diseases German Oncology CenterLimassol 4108LimassolCyprus

BACKGROUND The risk of severe coronavirus disease 2019(COViD-19)in pregnant women is *** To examine the outcomes of pregnant women with COViD-19 and report perinatal outcomes and complications,while providing a brief review of current *** The study included pregnant women presenting from April 2020 to February 2022 to the emergency department(ED)of a tertiary *** retrospectively recorded the maternal and perinatal files,including patient epidemiological and clinical characteristics,laboratory values,outcomes,treatment modalities and associations were *** Among the 60 pregnant women,25%required hospitalization,all of whom were *** delivery occurred in 30%of *** percent of neonates required admission to the neonatal intensive care unit,and 5%were classified as small for their gestational *** mothers survived COViD-19 and pregnancy,with 6.6%requiring invasive mechanical *** delivery rates did not differ between hospitalized and non-hospitalized pregnant women;composite unfavorable perinatal outcomes,including stillbirth,small for gestational age,or neonatal intensive care unit(iCU)admission,did not significantly increase in the cases hospitalized for COViD-19(P=0.09).The odds of hospitalization increased 2.3-fold for each day of delayed ED presentation[***(95%Ci:1.46-3.624),Pidity status was an independent predictor of hospitalization,albeit with marginal significance[***=16.13(95%Ci:1.021-255.146),P=0.048].No independent predictors of adverse fetal outcome(composite)were identified,and eventual hospitalization failed to reach statistical significance by a slight margin(P=0.054).CONCLUSiON Delayed ED presentation and comorbidities increase hospitalization *** study highlights the importance of continuous and specific guidance for managing pregnant COViD-19 patients,including timely and appropriate interventions to minimize maternal and perinatal morbidity an

关键词： SARS-CoV-2 COViD-19 Pregnancy Maternal outcomes Preterm delivery

Evaluation of Technical Education by Using a Modern Structured MOODLE Laboratory Course, in Relation to Recent Data

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Journal of intelligent Learning Systems and Applications 2024年第3期16卷 316-339页

作者： Gerasimos Vlassopoulos George Albert Karikas Efstathia papageorgiou ioannis Psaromiligkos Niki Giannouli Pigi Vlassopoulou Petros Karkalousos Department of Biomedical Sciences University of West Attica Athens Greece

E-learning platforms support education systems worldwide, transferring theoretical knowledge as well as soft skills. in the present study high-school pupils’, and adult students’ opinions were evaluated through a modern structured MOODLE interactive course, designed for the needs of the laboratory course “Automotive Systems”. The study concerns Greek secondary vocational education pupils aged 18 and vocational training adult students aged 20 to 50 years. The multistage, equal size simple random cluster sample was used as a sampling method. Pupils and adult students of each cluster completed structured 10-question questionnaires both before and after attending the course. A total of 120 questionnaires were collected. in general, our findings disclosed that the majority of pupils and adult students had significantly improved their knowledge and skills from using MOODLE. They reported strengthening conventional teaching, using the new MOODLE technology. The satisfaction indices improved quite, with the differences in their mean values being statistically significant.

关键词： information and Communication Technologies (iCT) Distance Learning E-Learning Students’ Opinions Education in Greece i.C.T. in Greece Students Pupils Adults Adult Students MOODLE MOOC (V.H.S.) Vocational High Schools (S.H.V.T.) Schools of Higher Vocational Training Vocational Profession interactive Lessons Courses Training Laboratory Course Secondary Education Automotive Systems Car Systems

大国数字货币对小国宏观金融形势溢出效应研究

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新金融 2024年第7期 53-58页

作者： Anh H.Le Alexander Copestake Brandon Tan Evan papageorgiou SJay Peiris Umang Rawat 唐成千(译) 周正铭(译) 国际货币基金组织不详

央行数字货币(CBDC)快速发展,与传统法定货币不同,CBDC对宏观经济,尤其是对邻国的宏观经济有哪些影响值得关注。本文建立了一个考虑内生货币替代和金融摩擦的两国新凯恩斯模型,以考察大型外国经济体发行的稳定币对小型发展中经济体的影... 详细信息

央行数字货币(CBDC)快速发展,与传统法定货币不同,CBDC对宏观经济,尤其是对邻国的宏观经济有哪些影响值得关注。本文建立了一个考虑内生货币替代和金融摩擦的两国新凯恩斯模型,以考察大型外国经济体发行的稳定币对小型发展中经济体的影响。研究发现,外国稳定币为国内经济中的家庭提供流动性服务,并为国内通胀提供额外的对冲;同时,它的引入放大了货币替代效应,减少了银行中介作用,削弱了货币政策传导作用,加剧了衰退冲击的影响,增加了银行业经营压力;而资本管制提高了稳定币作为规避手段的使用率,增加了对外国冲击溢出效应的敞口。与国内中央银行数字货币不同,禁止外国稳定币支付可以缓解这些影响。本刊编译此篇国际货币基金组织(iMF)的工作论文,以期为读者带来启示。

关键词：央行数字货币(CBDC) 宏观金融形势溢出效应开放经济体金融摩擦

Second Order Nonlinear Evolution inclusions Existence and Relaxation Results

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Acta Mathematica Sinica,English Series 2005年第5期21卷 977-996页

作者： NikolaosS.papageorgiou NikolaosYANNAKAKiS Department of Mathematics National Technical UniversityZografou CampusAthens 15780Greece

This is the first part of a work on second order nonlinear, nonmonotone evolution inclusions defined in the framework of an evolution triple of spaces and with a multivalued nonlinearity depending on both x（t） and x（t）. in this first part we prove existence and relaxation theorems. We consider the case of an usc, convex valued nonlinearity and we show that for this problem the solution set is nonempty and compact in C^1 （T, H）. Also we examine the isc, nonconvex case and again we prove the existence of solutions. in addition we establish the existence of extremal solutions and by strengthening our hypotheses, we show that the extremal solutions are dense in C^1 （T, H） to the solutions of the original convex problem （strong relaxation）. An example of a nonlinear hyperbolic optimal control problem is also discussed.

关键词： Evolution triple Pseudomonotone and demicontinuous operator Coercive operator L-pseudomonotonicity Upper semicontinuous and lower semicontinuous multifunction Solution set integration by parts formula Compact embedding Extremal solutions Strong relaxation Hyperbolic control system Surjective operator

ARBiTRARiLY SMALL NODAL SOLUTiONS FOR PARAMETRiC ROBiN(p,q)-EQUATiONS PLUS AN iNDEFiNiTE POTENTiAL

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Acta Mathematica Scientia 2022年第2期42卷 561-574页

作者： Salvatore LEONARDi Nikolaos S.papageorgiou Dipartimento di Matematica e informatica Viale A.Doria695125 CataniaItaly Technical University Department of MathematicsZorografou CampusAthens 15780Greece

We consider a nonlinear Robin problem driven by the(p,q)-Laplacian plus an indefinite potential term and with a parametric reaction *** minimal conditions on the reaction function,which concern only its behavior near zero,we show that,for all λ>0 small,the problem has a nodal solution y_(λ)∈C^(1)(Ω)and we have y_(λ)→0 in C^(1)(Ω)asλ→0^(+).

关键词： (p,q)-Laplacian indefinite potential nonlinear regularity extremal constant sign solutions nodal solutions

ANiSOTROPiC(p,q)-EQUATiONS WiTH COMPETiTiON PHENOMENA

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Acta Mathematica Scientia 2022年第1期42卷 299-322页

作者： Zhenhai LiU Nikolaos S.papageorgiou Guangxi Colleges and Universities Key Laboratory of Complex System Optimization and Big Data Processing Yulin Normal UniversityYulin 537000China Guangxi Key Laboratory of Hybrid Computation and iC Design Analysis Guangxi University for NationalitiesNanning 530006China Department of Mathematics National Technical UniversityZografou Campus15780 Athens.Greece

We consider a nonlinear Robin problem driven by the anisotropic(p,q)-Laplacian and with a reaction exhibiting the competing effects of a parametric sublinear(concave) term and of a superlinear(convex) *** prove a bifurcation-type theorem describing the changes in the set of positive solutions as the parameter *** also prove the existence of a minimal positive solution and determine the monotonicity and continuity properties of the minimal solution map.

关键词： concave-convex nonlinearities anisotropic operators regularity theory maximum principle minimal positive solution

POSiTiVE SOLUTiONS FOR PARAMETRiC EQUiDiFFUSiVE p-LAPLACiAN EQUATiONS

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Acta Mathematica Scientia 2014年第3期34卷 610-618页

作者： Leszek GASiNSKi Nikolaos S.papageorgiou Jagiellonian University Faculty of Mathematics and Computer Scienceul. Lojasiewicza 630 348 KrakówPoland National Technical University Department of MathematicsZografou CampusAthens 15780Greece

We consider a parametric Dirichlet problem driven by the p-Laplacian with a Caratheodory reaction of equidiffusive type. Our hypotheses incorporate as a special case the equidiffusive p-logistic equation. We show that if λ1 〉 0 is the principal eigenvalue of the Dirichlet negative p-Laplacian and ）λ 〉 λ1 （/k being the parameter）, the problem has a unique positive solution, while for ）λ ∈ （0, λ1], the problem has no positive solution.

关键词： p-Laplacian p-logistic equation first eigenvalue equidiffusive reaction maxi-mum principle nonlinear regularity