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简介：Oneday,theteacherinquiredPeter:“Howmuchisfourminusfour?”Peterwastongue-tied.Theteachergotangryandsaid,“Whatafool!Yousee,ifIputfourcoinsinyourpocket,butthereisaholeinyourpocketandallofthemleakout,nowwhatisleftinyourpocket?”“Thehole,”repliedPeter.WhatIsLeftinYourPocket?!湖北@罗成勇

简介：ChristyBrown,thecelebratedpainterandwriter,overcamethedifficultiesofbeingbornwithcerebralpalsybyusinghisleftfoot，theonlypartofhisbodywhichhecouldusewithrealcontrol.InthisstoryyouwillbecomparingtheopeningofChristy'sautobiographicalnovelwithascenefromthesuccessfulfilmofhisearlylife,“MyLeftFoot”.

简介：Inrecentyears,theriseoftheLeft-wingpoliticalforceshasbecomeanewphenomenonontheLatinAmericanpoliticalstage,attractinggreatattentionfromtheinternationalcommunity.Forthetimebeing,however,scholarsaroundtheworldhavenotreachedaconsensusonthedefinitionofthe

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简介：我们与是的每最小的左理想学习这些戒指一个射影的、直接被加数和一个p-injective模块分别地。这些戒指的一些描述被给，并且在他们之中的关系被获得。与这些戒指，我们描绘半简单戒指。最后，我们介绍MC2戒指，并且给MC2戒指的一些描述。

简介：常言道,日久见人心,真正的友谊才经得起时间的考验;不过我们也应该在必要时学会放弃,这才是成熟的表现。beinghavehadthreebestfriends.Weenjoyedaroundtogetheruntilwewalkedacrossthestage,saidgoodbyesaswewenttocollege.Itdidn'teventakeuntilcollegetoseewhowasreallymyfriends;itwaslessthanaweekbeforeIneverheardfromoneofmyso-calledbestfriendseveragain.Andforthis,Icouldnotbemorethankful.

简介：<正>教学内容:《新标准英语》第4册第10模块第1单元。学情分析:班内的大多数学生活泼、大胆且独立,且经过了近两年英语方面的培养和训练,学生熟悉教师的课堂用语,他们喜欢上英语课,特别是游戏以及在一定

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简介：Normalregionalleftventricular(LV)mechanicalcontractionissynchronous,resultinginefficientejection.Abnormalitiesinelectricalactivationormyocardialdiseasesmayaffectthetimingofregionalcontraction,resultingindiscoordinatedordyssynchronouscontraction,whichisinefficient.Thisarticlereviewsvariousapproachestoquantifydyssynchrony,focusingonLVdyssynchrony,thathavebeenprincipallyrelatedtocardiacresynchronizationtherapy(CRT).SeveralattemptshavebeenmadetoimprovepatientselectionforCRTbyuseofechocardiographicdyssynchrony;however,nonehavegainedclinicalacceptance.ThisreviewfocusesonthedifferentreasonsfortheexistenceLVdyssynchrony,thedyssynchronousstrainpatternsindicativeofCRTresponse,andtheprognosticimplicationsofdyssynchrony.Interestinechocardiographicdyssynchronyremainshighbecauseofitsmechanisticandprognosticimportance.Dyssynchronymayoccurfromelectricalornonelectricalcauses.PatientswithawideQRScomplexwhohavebaselinedyssynchronyfromelectricaldelayingeneralhaveafavorableresponsetoCRT,whereaspatientswithnonelectricaldyssynchrony(fromcontractileheterogeneityorscar)atthebaselinehaveaworseprognosis.Newinsightsintothemeaningofmechanicaldyssynchronycontinuetoemerge,andthisarticle

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简介：Todayabout15%ofthenumberofpeopleisleft-handed.Butwhyarepeopleleft-handed?Theansweristhewaythebrain(大脑)works.Thebrainhastwohalves——therighthalfandthelefthalf.Therighthalfcontrols(控制)theleftsideofthebody,andtheleftcontrolstherightsideofthebody.

简介：BackgroundAnomalousoriginoftheleftcoronaryarteryfromthepulmonaryarteryisararecongenitalcardiaclesionresultinginmyocardialischemiaeveninfarction,morphologicalimpairmentanddysfunctionofleftventricle,togetherwithmitralregurgitation.Herewewillintroduceourexperienceinthesurgicalrepairofthiskindofcongenitallesionandtheretrospectiveanalysisabouttheimprovementofleftventriculardimensionandmitralregurgitationinearlypostoperativeterm.MethodFromMay1998toJuly2012,38consecutivepatientswithanomalouscoronaryarteryfromthepulmonaryarteryunderwentsurgicalcorrection(33receivedleftcoronaryarteryre-implantation,4leftcoronaryarteryligationorprimaryclosure,1Takeuchiprocedure,and10simultaneousmitralvalveplasty).Leftventriculardimension,mitralregurgitation,andejectionfraction,weremeasuredbycolorDopplerechocardiographypreoperatively,and1monthafterdischarge.ResultsHospitalsurvivalwas94.7%(2in-hospitaldeaths).Tenpaptientswithmorethanmoderatemitralregurgitationreceivedsimultaneousmitralplasty,oneofwhomwasconvertedtomechanicalprostheticvalvereplacement.Mitralvalveannuloplastywasappliedin9casesofcoronaryre-implantationcorrection,3ofwhomalsoreceivedadditionalmitralleafletcleftrepair.Meanwhile8patientsunderwentotherdifferentconcomitantoperations.Echocardiographicresultsforthesurvivals1monthafterdischargeshowedthatleftventricularend-diastolic,endsystolicdimensiondecreasedfrom40.05±5.56mmand28.94±6.21mmto33.07±6.82mm(P<0.01)and23.04±5.87mm(P<0.01)respectively.Theaveragemitralregurgitationgradewasalsoreducedfrom2.36±1.08to1.64±93(P<0.05)inthegroup.AllsurvivalpatientsimprovedclinicallyandNYHAfunctionalclassdecreasedsignificantlyfrom2.37±1.08to2.10±0.54(P<0.05).ConclusionsThesurgicalrepairofanomalousoriginoftheleftcoronaryarteryfromthepulmonaryarteryissafeandeffective,andcange

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简介：Acriticaldifferencebetweentherighthemispherehypothesisandvalencehypothesisofemotionprocessingiswhethertheprocessingofhappyfacialexpressionsislateralizedtotherightorlefthemisphere.InthisstudyparticipantsfromaChinesesamplewereaskedtoclassifyhappyorneutralfacialexpressionspresentedeitherbilaterallyinbothvisualfieldsorunilaterallyintheleftvisualfield(LVF)orrightvisualfield(RVF).Theywererequiredtomakethespeededresponsesusingeithertheleftorrighthand.Itwasfoundthatforbothleftandrighthandresponses,happy(andneutral)expressionspresentedintheLVFwereidentifiedfasterthanhappy(andneutral)expressionspresentedintheRVF.BilateralpresentationshowednofurtheradvantageoverLVFpresentation.Moreover,lefthandresponsesweregenerallyfasterthanrighthandresponses,althoughthiseffectwasmorepronouncedforneutralexpression.Thesefindingswereinterpretedassupportingtherighthemispherehypothesis,withhappyexpressionbeingidentifiedinitiallybytherighthemisphere.

简介：Theventricularseptumseparatestherightandleftventriclesandthusispartofbothventricles.Itisdirectedobliquelybackwardtotheright,andcurvedwiththeconvexitytowardtherightventricle;itmustbeemphasizedthatthetotalcardiacseptumhasacomplex,longitudinaltwistanddoesnotlieinanysingleplane.Itsupperandposteriorpart,isthinandfibrous,andistermedthemembranousventricularseptum.Thegreaterportionoftheseptumisthickandmuscularandconstitutesthemuscularventricularseptum.Theventricularseptumconsistsoftwolayers,athinlayerontheRVsideandathickerlayerontheLVside[1].Themajorseptalarteriestendtorunbetweenthesetwolayers.

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简介：IntheprocessofChina’srapidindustrializationandurbanization,duetolaboroutflow,alargenumberofchildrenwereleftbehindinruralarea.BeingLongseparatedfromtheirparents,someofthesechildrensufferfrompsychologicalproblemsorevenshowextremebehaviors.Theyaremorevulnerabletoaccidentsorevenunlawfulinfringements.Theseproblemshaveseriouslyaffectedtheir

简介：Thispaperderivestheforceoftheelectromagneticradiationonleft-handedmaterials(LHMs)byadirectapplica-tionoftheLorentzlawofclassicalelectrodynamics.TheexpressionsofradiationforcearegivenforTE-polarisedandTM-polarisedfields.Thenumericalresultsdemonstratethatelectromagneticwavesexertaninverselateralradiationforceoneachedgeofthebeams,thatis,thelateralpressureisexpansiveforTE-polarisedbeamsandcompressiveforTM-polarisedbeams.TheinvestigationoftheradiationforcewillprovideinsightsintothefundamentalpropertiesofLHMsandwillprovidetobetterunderstandingoftheinteractionoflightwithLHMs.

简介：在微弱地指导的盒子中，在核心和左手的材料纤维的cladding的力量繁殖被解决麦克斯韦鈥檚方程获得。波导效率在截止并且远离截止被分析。远离截止，波导效率等于到1。在截止，为m=0，1，波导效率平等者到零；为m=2，波导效率来临到无限；为m>2，波导效率是不到零，但是它的绝对值比1大。那些是左手的材料纤维的新奇特征。CLC数字TN253这个工作被中国(60277025)和上海领先的学术学科工程(T0102)的国家性质科学基础支持