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Compressively sampling the optical transmission matrix of a multimode fibre

Light(Science & Applications) 2021年第5期10卷 916-930页

作者： Shuhui Li Charles Saunders Daniel j.Lum john murray-Bruce vivek K Goyal TomášČižmár David B.Phillips School of Physics and Astronomy University of ExeterExeterEX44QLUK Wuhan National Laboratory for Optoelectronics School of Optical and Electronic InformationHuazhong University of Science and TechnologyWuhan430074HubeiChina Department of Electrical and Computer Engineering Boston UniversityBostonMA02215USA Department of Physics and Astronomy University of Rochester500 Wilson BlvdRochesterNY14618USA Department of Computer Science and Engineering University of South FloridaTampaFL33620USA Leibniz Institute of Photonic Technology Albert-Einstein-Straße 907745JenaGermany Institute of Scientific Instruments of CAS Královopolská14761264BrnoCzech Republic

The measurement of the optical transmission matrix(TM)of an opaque material is an advanced form of space-variant aberration *** imaging,TM-based methods are emerging in a range of fields,including optical communications,micro-manipulation,and *** many cases,the TM is very sensitive to perturbations in the configuration of the scattering medium it ***,applications often require an up-to-the-minute characterisation of the fragile TM,typically entailing hundreds to thousands of probe ***,we explore how these measurement requirements can be relaxed using the framework of compressive sensing,in which the incorporation of prior information enables accurate estimation from fewer measurements than the dimensionality of the TM we aim to *** of such priors include knowledge of a memory effect linking the input and output fields,an approximate model of the optical system,or a recent but degraded TM *** demonstrate this concept by reconstructing the full-size TM of a multimode fibre supporting 754 modes at compression ratios down to∼5%with good *** show that in this case,imaging is still possible using TMs reconstructed at compression ratios down to∼1%(eight probe measurements).This compressive TM sampling strategy is quite general and may be applied to a variety of other scattering samples,including diffusers,thin layers of tissue,fibre optics of any refractive profile,and reflections from opaque *** approaches offer a route towards the measurement of high-dimensional TMs either quickly or with access to limited numbers of measurements.

关键词： scattering fibre matrix

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Giant hepatic extra-gastrointestinal stromal tumor treated with cytoreductive surgery and adjuvant systemic therapy:A case report and review of literature

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World journal of Gastrointestinal Surgery 2021年第3期13卷 315-322页

作者： Michel Ribeiro Fernandes Caroline Lorenzoni Almeida Ghezzi Tomaz j M Grezzana-Filho Flávia Heinz Feier ian Leipnitz Aljamir Duarte Chedid Carlos Thadeu Schmidt Cerski Marcio Fernandes Chedid Cléber RositoPinto Kruel Department of Gastrointestinal Surgery and Transplantation Hospital de Clínicas de Porto AlegrePorto Alegre 90035-007RSBrazil Division of Radiology Hospital de Clínicas de Porto AlegrePorto Alegre 90035-903RSBrazil Department of Pathology Hospital de Clínicas de Porto AlegrePorto Alegre 90035-007RSBrazil

BACKGROUND Primary extra-gastrointestinal stromal tumors(E-GIST)of the liver are *** clinical presentation may range from asymptomatic to bleeding or manifestations of mass *** surgery followed by adjuvant therapy with imatinib is the standard of ***,under specific circumstances,a cytoreductive approach may represent a therapeutic *** describe herein the case of an 84-year-old woman who presented with a tender,protruding epigastric *** computed tomography scan revealed a large,heterogeneous mass located across segments III,Iv,v,and vIII of the *** initial approach was transarterial embolization of the tumor,which elicited no appreciable *** the large size and central location of the tumor and the advanced age of the patient,non-anatomic complete resection was *** to substantial intraoperative bleeding and hemodynamic instability,only a near-complete resection could be *** and immunohistochemical staining confirmed the diagnosis of primary E-GIST of the *** the risk/benefit ratio for therapeutic options,debulking surgery may represent a strategy to control pain and prolong *** SUMMARY Here,we present a case report of a patient diagnosed with E-GIST primary of the liver,which was indicated a cytoreductive surgery and adjuvant therapy with *** E-GIST primary of the liver is a rare conditional,the treatment is with systemic therapy and total resection ***,a cytoreductive surgery will be necessary when a complete resection is no possible.

关键词： Extra-gastrointestinal stromal tumor Primary gastrointestinal stromal tumor of the liver Cytoreductive surgery Debulking surgery Case report

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Call for emergency action to limit global temperature increases, restore biodiversity and protect health

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World journal of Pediatric Surgery 2021年第4期4卷 60-62页

作者： Lukoye Atwoli Abdullah H Baqui Thomas Benfield Raffaella Bosurgi Fiona Godlee Stephen Hancocks Richard Horton Laurie Laybourn-Langton Carlos Augusto Monteiro ian Norman Kirsten Patrick Nigel Praities Marcel GM Olde Rikkert Eric j Rubin Peush Sahni Richard Smith Nicholas j Talley Sue Turale Damián vázquez East African Medical journal NairobiKenya journal of Health Population and NutritionBaltimoreMarylandUSA Danish Medical journal CopenhagenDenmark PLOS Medicine CambridgeUK The BMj LondonUK British Dental journal LondonUK The Lancet LondonUK UK Health Alliance on Climate Change LondonUK Revista de Saúde Pública São PauloBrazil International journal of Nursing Studies LondonUK CMAj OttawaOntarioCanada Pharmaceutical journal LondonUK Dutch journal of Medicine NijmegenThe Netherlands NEjM BostonMassachusettsUSA National Medical journal of India New DelhiIndia Medical journal of Australia NewcastleNew South WalesAustralia International Nursing Review GenevaSwitzerland Pan American journal of Public Health WashingtonDCUSA

Wealthy nations must do much more,much *** United Nations General Assembly in September 2021 will bring countries together at a critical time for marshalling collective action to tackle the global environmental *** will meet again at the biodiversity summit in Kunming,China,and the climate conference(Conference of the Parties(COP)26)in Glasgow,*** of these pivotal meetings,we-the editors of health journals worldwide-call for urgent action to keep average global temperature increases below 1.5℃,halt the destruction of nature and protect health.

关键词： action collective faster

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The effects of exercise on cognition in Parkinson’s disease: a systematic review

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Translational Neurodegeneration 2014年第1期3卷 21-33页

作者： Danielle K murray Matthew A Sacheli janice j Eng A jon Stoessl Pacific Parkinson’s Research Centre and Department of Medicine Division of NeurologyUniversity of British Columbia&Vancouver Coastal HealthVancouverBC V6T 2B5Canada Department of Physical Therapy University of British ColumbiaVancouverBC V6T 1Z3Canada

Cognitive impairments are highly prevalent in Parkinson’s disease(PD)and can substantially affect a patient’s quality of *** impairments remain difficult to manage with current clinical therapies,but exercise has been identified as a possible *** objective of this systematic review was to accumulate and analyze evidence for the effects of exercise on cognition in both animal models of PD and human *** systematic review was conducted according to the Preferred Reporting Items for Systematic reviews and Meta-Analyses(PRISMA)*** original reports were identified,including six pre-clinical animal studies and eight human clinical *** studies used various exercise interventions and evaluated many different outcome measures;therefore,only a qualitative synthesis was *** evidence from animal studies supports the role of exercise to improve cognition in humans through the promotion of neuronal proliferation,neuroprotection and *** findings warrant more research to determine what roles these neural mechanisms play in clinical *** reports on cognitive changes in clinical studies demonstrate that a range of exercise programs can improve cognition in *** each clinical study demonstrated improvements in a marker of cognition,there were limitations in each study,including non-randomized designs and risk of *** Grading of Recommendations Assessment,Development and Evaluation(GRADE)system was used and the quality of the evidence for human studies were rated from“low”to“moderate”and the strength of the recommendations were rated from“weak”to“strong”.Studies that assessed executive function,compared to general cognitive abilities,received a higher GRADE ***,this systematic review found that in animal models exercise results in behavioral and corresponding neurobiological changes in the basal ganglia related to *** clinical studies showed that various types of exerc

关键词： Parkinson’s disease Exercise Cognition Humans Animals

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Coronary pseudoaneurysm following thoracic motocross trauma

Coronary pseudoaneurysm following thoracic motocross trauma

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中国超声医学工程学会成立30周年暨第十二届全国超声医学学术大会

作者： Lin Liu Yi-hua He Zhi-an Li Lian-zhong Zhang Ya-nan Li Cun-ying Cui Yuan-yuan Liu j.v.(ian) Nixon Department of Ultrasound in Medicine Henan Provincial Hospital Department of Ultrasound in Medicine Beijing Anzhen HospitalCapital Medical University Noninvasive Cardiology ServicePauley Heart CenterVirginia Commonwealth University School of Medicine

A 42-year-old man was referred to the hospital because of persistent atypical chest *** gave a history of thoracic trauma in a motocross accident six months *** echocardiography(TTE) at the time of his presentation showed dilatation of the origin of the right coronary artery(RCA) consistent with a pseudoaneurysm,with areas of increased echodensity consistent with *** artery computed tomography(CTA) showed a partially thrombosed pseudoaneurysm adjacent to the right atrioventricular *** surgery showed a giant RCA pseudoaneurysm containing *** pseudoaneurysm was excised and the RCA underwent coronary artery bypass *** echocardiography is capable of locating a coronary pseudoaneurysm of the RCA,in addition to estimating its size and detecting the presence of thrombus within the pseudoaneurysm.

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对不明原因缺血性脑卒中患者卵圆孔未闭和主动脉粥样硬化斑块的对比研究

对不明原因缺血性脑卒中患者卵圆孔未闭和主动脉粥样硬化斑块的对...

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中华医学会第十次全国超声医学学术会议

作者：谷孝艳李治安何怡华 j.v.(ian) Nixon 首都医科大学附属北京安贞医院超声诊断科

目的:应用经食管超声(TEE)探查卵圆孔未闭(Patent foramen ovale,PFO)及升主动脉、主动脉弓部内粥样硬化斑块探讨与不同年龄组特发性脑卒中(Cryptogenic stroke,CS)患者的关系,寻找特发性脑卒中的原因。方法:研究对象包括经TEE检查的229...

目的:应用经食管超声(TEE)探查卵圆孔未闭(Patent foramen ovale,PFO)及升主动脉、主动脉弓部内粥样硬化斑块探讨与不同年龄组特发性脑卒中(Cryptogenic stroke,CS)患者的关系,寻找特发性脑卒中的原因。方法:研究对象包括经TEE检查的229例CS患者为患病组;314例无脑卒中病史为

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经食管超声心动图对不明原因缺血性脑卒中患者心源性栓子的检出

经食管超声心动图对不明原因缺血性脑卒中患者心源性栓子的检出

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中国超声医学工程学会成立30周年暨第十二届全国超声医学学术大会

作者：谷孝艳何怡华李治安 j.v.(ian)Nixon 首都医科大学附属北京安贞医院

目的应用经食管超声(Transesophageal echocardiography,TEE)探查不明原因缺血性脑卒中(Cryptogenic stroke,CS)患者的心源性栓子来源可能,寻找特发性脑卒中的心源性因素。方法对2006年8月至2008年7月病因不明的缺血性脑卒中为排除心源...

目的应用经食管超声(Transesophageal echocardiography,TEE)探查不明原因缺血性脑卒中(Cryptogenic stroke,CS)患者的心源性栓子来源可能,寻找特发性脑卒中的心源性因素。方法对2006年8月至2008年7月病因不明的缺血性脑卒中为排除心源性栓子进行TEE检查的患者作为研究对象进行了回顾性分析。所有脑卒中患者均行头部CT或MRI,颈动脉多普勒检查及实验室化验。研究对象包括经TEE检查的263例CS患者,男例,女例,年龄岁(平均),所有TEE均在所有TEE检查均应用Sonos-5500食道探头(飞利浦,USA)。经静脉注射生理盐水9ml与气体1ml混合的声学造影剂于双房上下腔切面(约90-120度)、不标准大动脉短轴切面及四腔心切面来观测是否存在PFO。并于升主动脉长轴切面,主动脉横弓部切面观察是否存在复杂性粥样硬化斑块。结果 263例患者中,存在心源性因素的患者131例(49.8%),存在卵圆孔未闭59例,发生率为22.4%;复杂斑块的发生率为40例,发生率为15.2%;房颤患者18例,二尖瓣上赘生物5例,主动脉瓣上赘生物2例,主动脉夹层1例,左心耳血栓3例,左房粘液瘤1例,左心室血栓2例。结论在导致CS的心源性可能致病因素中卵圆孔未闭及主动脉斑块的发生率最高,而TEE检查是CS病因诊断的可行手段,不明原因的脑梗死患者,建议进一步采用TEE检查。这样可使近1/3的患者发现可能的心源性栓子来源。

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经食管超声心动图检测主动脉内粥样硬化斑块与冠状动脉病变严重程度的对比研究

经食管超声心动图检测主动脉内粥样硬化斑块与冠状动脉病变严重程...

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中华医学会第十次全国超声医学学术会议

作者：何怡华李治安谷孝艳 j.v.(ian)Nixon 首都医科大学附属北京安贞医院超声诊断科

目的:通过经食管超声心动图检测的主动脉的不同部位不同斑块性质与冠状动脉血管病变严重程度进行对比研究,寻找冠状动脉病变的预测因素。方法:对118例同时进行了食管超声心动图及冠状动脉血管造影的患者进行对比研究。冠状动脉造影显示...

目的:通过经食管超声心动图检测的主动脉的不同部位不同斑块性质与冠状动脉血管病变严重程度进行对比研究,寻找冠状动脉病变的预测因素。方法:对118例同时进行了食管超声心动图及冠状动脉血管造影的患者进行对比研究。冠状动脉造影显示血管内径狭窄≥70%定义为冠状动脉病变。粥样硬化

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Spatiotemporal continuum generation in polariton waveguides

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Light(Science & Applications) 2019年第1期8卷 1117-1127页

作者： Paul M.Walker Charles E.Whittaker Dmitry v.Skryabin Emiliano Cancellieri Ben Royall Maksym Sich ian Farrer David A.Ritchie Maurice S.Skolnick Dmitry N.Krizhanovskii Department of Physics and Astronomy University of SheffieldSheffield S37RHUK Department of Physics University of BathBath BA27AYUK ITMO University Kronverksky Avenue 49St.Petersburg 197101Russia Department of Physics Lancaster UniversityLancaster LA14YBUK Department of Electronic and Electrical Engineering University of SheffieldSheffield S37HQUK Cavendish Laboratory University of CambridgeCambridge CB30HEUK

We demonstrate the generation of a spatiotemporal optical continuum in a highly nonlinear exciton–polariton waveguide using extremely low excitation powers(2-ps,100-W peak power pulses)and a submillimeter device suitable for integrated optics *** observe contributions from several mechanisms over a range of powers and demonstrate that the strong light–matter coupling significantly modifies the physics involved in all of *** experimental data are well understood in combination with theoretical *** results are applicable to a wide range of systems with linear coupling between nonlinear oscillators and particularly to emerging polariton devices that incorporate materials,such as gallium nitride and transition metal dichalcogenide monolayers that exhibit large light–matter coupling at room *** open the door to low-power experimental studies of spatiotemporal nonlinear optics in submillimeter waveguide devices.

关键词： millimeter waveguide optics

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Search for two-neutrino double-beta decay of^(136)Xe to the 0^(+)_(1)excited state of 136Ba with the complete EXO-200 dataset

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Chinese Physics C 2023年第10期47卷 1-9页

作者： S.Al Kharusi G.Anton I.Badhrees P.S.Barbeau D.Beck v.Belov T.Bhatta M.Breidenbach T.Brunner G.F.Cao W.R.Cen C.Chambers B.Cleveland M.Coon A.Craycraft T.Daniels L.Darroch S.j.Daugherty j.Davis S.Delaquis A.Der Mesrobian-Kabakian R.Devoe j.Dilling A.Dolgolenko M.j.Dolinski j.Echevers W.Fairbank jr. D.Fairbank j.Farine S.Feyzbakhsh P.Fierlinger Y.S.Fu D.Fudenberg P.Gautam R.Gornea G.Gratta C.Hall E.v.Hansen j.Hoessl P.Hufschmidt M.Hughes A.Iverson A.jamil C.jessiman M.j.jewell A.johnson A.Karelin L.j.Kaufman T.Koffas R.Krücken A.Kuchenkov K.S.Kumar Y.Lan A.Larson B.G.Lenardo D.S.Leonard G.S.Li S.Li Z.Li C.Licciardi Y.H.Lin R.MacLellan T.McElroy T.Michel B.Mong D.C.Moore K.murray O.Njoya O.Nusair A.Odian I.Ostrovskiy A.Perna A.Piepke A.Pocar F.Retière A.L.Robinson P.C.Rowson j.Runge S.Schmidt D.Sinclair K.Skarpaas A.K.Soma v.Stekhanov M.Tarka S.Thibado j.Todd T.Tolba T.I.Totev R.Tsang B.veenstra v.veeraraghavan P.vogel j.-L.vuilleumier M.Wagenpfeil j.Watkins M.Weber L.j.Wen U.Wichoski G.Wrede S.X.Wu Q.Xia D.R.Yahne L.Yang Y.-R.Yen O.Ya.Zeldovich T.Ziegler 无 Physics Department McGill UniversityMontrealQuebec H3A 2T8Canada Erlangen Centre for Astroparticle Physics(ECAP) Friedrich-Alexander-University Erlangen-NürnbergErlangen 91058Germany Physics Department Carleton UniversityOttawaOntario K1S 5B6Canada Department of Physics Duke Universityand Triangle Universities Nuclear Laboratory(TUNL)DurhamNorth Carolina 27708USA Physics Department University of IllinoisUrbana-ChampaignIllinois 61801USA Institute for Theoretical and Experimental Physics named by A.I.Alikhanov of National Research Centre“Kurchatov Institute” Moscow 117218Russia Department of Physics University of South DakotaVermillionSouth Dakota 57069USA SLAC National Accelerator Laboratory Menlo ParkCalifornia 94025USA TRIUMF VancouverBritish Columbia V6T 2A3Canada Institute of High Energy Physics Beijing 100049China Department of Physics Laurentian UniversitySudburyOntario P3E 2C6Canada Physics Department Colorado State UniversityFort CollinsColorado 80523USA Department of Physics and Physical Oceanography University of North Carolina at WilmingtonWilmingtonNC 28403USA Physics Department and CEEM Indiana UniversityBloomingtonIndiana 47405USA Physics Department Stanford UniversityStanfordCalifornia 94305USA Department of Physics Drexel UniversityPhiladelphiaPennsylvania 19104USA Amherst Center for Fundamental Interactions and Physics Department University of MassachusettsAmherstMA 01003USA Technische Universität München Physikdepartment and Excellence Cluster UniverseGarching 80805Germany Physics Department University of MarylandCollege ParkMaryland 20742USA Department of Physics and Astronomy University of AlabamaTuscaloosaAlabama 35487USA Wright Laboratory Department of PhysicsYale UniversityNew HavenConnecticut 06511USA IBS Center for Underground Physics Daejeon 34126Korea Department of Physics and Astronomy Stony Brook UniversitySUNYStony BrookNew York 11794USA Kellogg Lab CaltechPasadenaCalifornia 91125USA LHEP Albert Einstein CenterUniversi

A new search for two-neutrino double-beta(2νββ)decay of^(136)Xe to the 0+1 excited state of 136Ba is performed with the full EXO-200 dataset.A deep learning-based convolutional neural network is used to discriminate signal from background *** detection efficiency is increased relative to previous searches by EXO-200 by more than a factor of *** the addition of the Phase II dataset taken with an upgraded detector,the median 90%confidence level half-life sensitivity of 2νββdecay to the 0+1 state of 136Ba is 2.9×10^(24)yr using a total^(136)Xe exposure of 234.1 kg *** statistically significant evidence for 2νββdecay to the 0^(+)_(1)state is observed,leading to a lower limit of T2ν1/2(0^(+)→0^(+)_(1))>1.4×10^(24)yr at 90%confidence level,improved by 70%relative to the current world's best constraint.

关键词： EXO-200 experiment neutrinoless double beta decay excited state

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