简介：快乐是二月的标签。整个二月都可以是很快乐的,如果你愿意。过年了,城市里到处都将是派对,到处都将是狂欢的人群。你有办法让你的这个月变得卓然不群么?说实在的,我还不知道怎样去制造卓然不群的欢乐,只能自娱自乐。只是初步打算回家去看看雪,看看分别很久的朋友,过了正月十五,就又得回到这个还没有能够适应的亚热带城市,继续做必须继续的一切。尽管如此,一种无名的兴奋还是潮水般涌来……很快,春天就在

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简介：摘要初中数学有没有价值，当然有。但是目前的初中数学教学并没有实现其应有的价值。在本文中，笔者从“有趣的”、“生活的”、“有用的”三个角度探讨了如何在初中数学教学中实现其价值。?

简介：小编发言：一到春节，趣事就源源不断地“飞”来!小时候最喜欢过年，因为可以穿漂壳的新衣服、贴春联、看联欢晚会、放鞭炮，吃饺子……哎呀，数都数不过来了，反正，春节真热闹呀!至于发生的校事，同样数都数不过来。比如第一次笨手笨脚地包饺子，包成了“灌汤包”，比如放鞭炮时把围巾烧了个拳头大的洞（从那以后，胆小的我就再没放过鞭炮）。可是，看到雪片儿般飞来的稿件，我才发现，大家的故事都这样有趣呀!这些故事不仅有同学们的，还有爸爸妈妈，老师和小编们的呢!

简介：这部剧作的选材独到，表现一位青年教师与他的聋哑学生的一段生活经历。作者的创作目的显而易见，首先要使影片具有社会公益性，让观众真正了解那些经常被人漠视的聋哑青年的日常生活，进而深入理解他们的内心世界。其次要使影片带有一定的探索性，尽展所能，对于电影如何表现残疾人特别是聋哑人进行艺术探索，显示出作者的艺术个性。

简介：AIM:TopresenttheresultsofimplantationofIakymenkokeratoprosthesisinfivepatientswithvascularizedcornealleukomacausedbysevereocularinjury.·METHODS:Iakymenkokeratoprosthesiswasimplantedinto5eyesof5patients:4patientsweresufferedfromchemicalburnsand1patientfromexplosiveinjury.Thepreoperativevisualacuityrangedfromlightperceptiontohandmotion.Theimplantationsurgerywascomposedoftwo-stageprocedures.Thefollow-upperiodwasfrom9monthsto11years.Theoutcomemeasureswerevisualacuity,retention,andcomplicationsofthekeratoprosthesis.·RESULTS:Visionimprovementswereachievedinmostpatients.Allkeratoprosthesiswereretainedwithinthefollow-upperiod.Cornealmeltingoccurredinonepatientandfibrousclosureinanotherpatient,bothofwhichweresuccessfullytreated.Retinaldetachmentoccurredinonepatientaftersurgery.·CONCLUSION:Iakymenkokeratoprosthesisseemstobeapromisingalternativeforthepatientswithseverecornealinjury,butfurtherinvestigationisneededtoevaluatetheroleofIakymenkokeratoprosthesis.

简介：本文对美国经济环境一体化核算的工作进程、意义及其未来方向等作了概括介绍；对经济核算与可持续收入之间的关系、对地下矿产的核算和对再生的和环境资产的核算的意义及其核算方法、核算原则等作了概括说明。

简介：AIM:Toinvestigatethefrequencyofidiopathicphacodonesis(IP)insenilecataractsubjectsandtheshort-termclinicaloutcomesfollowingcataractsurgery.METHODS:Thisinstitutionalcase-controlstudyincluded1301consecutivelow-incomecataractsubjectsfromJunetoNovember2009.Anteriorsegmentwerecarefullyevaluatedwithdilatedpupilunderslit-lamp.IPwerescreenedandgradedbyacriteriasetbytheauthors.Riskfactors,surgicaloutcomes,andoperativecomplicationswereanalyzed.RESULTS:Atotalof42subjects(3.2%)withIPwerediagnosedandclassifiedasgrade1(36subjects),grade2(5subjects)andgrade3(1subject).HarderlensesandintumescentcataractswereobservedintheIPgroupthanthecontrolgroup(P<0.05).Logisticsregressiontestalsoindicatedthemainriskfactorwasthehardnessofthelens.Theincidenceofzonulardialysisduringsurgerywas23.8%(10eyes),whichwassignificantlyhigherthanthecontrols(0.7%,P<0.001).Visualoutcomesofthetwogroupswerenotstatisticallyorclinicallysignificant.CONCLUSION:HardnucleusandintumescentcataractarerelatedtoIPinsenilecataractsubjectsinQinghai,China.Withmorecarebeingtaken,grade1andsomeofthegrade2IPsubjectsachievedsimilarsurgicaloutcomesascomparedtocontrols.

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简介：<正>DirSir,IamdoctorGuo-YuanYang,fromtheDepartmentofOphthalmologyofWestChinaHospitalofSichuanUniversityinChengdu,SichuanProvince,China.Iwritetopresentacasereportofposteriorlentiglobuswithcataract.

简介：AIM:Toevaluatechangesintheanteriorchamberdepth(ACD),crystallinelensthickness(LT)anditsrefractivepowerafterlaserinsitukeratomileusis(LASIK).·METHODS:Inallcases,thepreoperativeandpostoperativecentralACDwhichweremeasuredwithPentacam,Orbscan,IOL-MasterandA-scanultrasonography,centralcornealtruenetpowerwhichwasmeasuredwiththePentacam,OrbscanandIOL-Master,axiallength(AL)whichwasmeasuredwithIOL-MasterandLTwhichwasmeasuredwiththeA-scanultrasonographywerecomparedusingthepairedsamplettest.OcularrefractiveerrorsandlensrefractivepoweratcornealplanewerecalculatedandtheircorrelationswerealsoevaluatedbeforeandafterLASIK.RESULTS:At1weekafterLASIK,LTandcrystallinelensrefractivepoweratcornealplane(Dlens)whichwereassociatedwiththeIOL-MasterandPentacamincreasedsignificantly(P≤0.005),ACDdecreasedsignificantly(P≤0.001),butnosignificantincreasewasobservedintheDlenswhichwasassociatedwiththeOrbscan(P=0.261).SignificantcorrelationsbetweenthechangesintheocularrefractiveerrorsandDlenswhichwereassociatedwiththePentacamwereobservedat1weekand6monthsafterLASIK(P=0.028;P=0.001).CONCLUSION:LTincreasedsignificantlyafterLASIK,andthismightpartiallyleadtoACDdecrease,Dlensincreaseandasmallquantityofmyopicregression.

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简介：AIM:ToexploretheinhibitoryeffectofasustainedcyclosporinA(CsA)deliverymicrosphere(CsA-MS)onposteriorcapsularopacification(PCO)inrabbiteyesaftercataractextraction.·METHODS:TwentyNewZealandwhiterabbitsacceptedcataractextractionplusintraocularlensimplantationandtheirlefteyeswereintraoperativelyinjectedCsA-MSpreparedusingpolymerpolylactioglycolicacid(PLGA)asacarrierandtheirrighteyeswereinjectedwithemptyMS.Thechangesincornea,anteriorchamberreaction,intraocularpressure,PCOandCsAconcentrationinaqueoushumorwereexaminedpostoperativelyandalltheeyeswereenucleated3monthsaftersurgeryforhistopathologicalandmorphologicalexaminationwithlightmicroscopyandelectronmicroscopy.·RESULTS:Conjunctivalhyperemia,cornealedema,intraocularpressureandanteriorchamberresponseofexperimentalandcontroleyesweresimilar,whilePCOinCsAMSinjectedeyeswasgreatlyimprovedcomparedwiththatincontroleyes.PosteriorcapsulesinCsA-MSinjectedeyesweresmoothandlensepithelialcells(LEC)didnotproliferatesignificantly(P>0.05),whileLECinposteriorcapsuleofcontroleyeshaddifferentdegreesofproliferationandcorticalregeneration.LECinCsA-MSinjectedeyeswerenotfunctionallyactiveandunderwentapoptosis,whereasLECincontroleyeswerefunctionallyactive(F-test,P=0.025).Inaddition,thecornealultrastructureshowednodifferencesbetweenCsA-MSandMSinjectedeyes.CONCLUSION:CsA-MShashighbioavailabilityinrabbiteyesandcouldinhibitpostoperativePCOoccurrenceanddevelopmentduringthestudyperiod,suggestingthatCsA-MSmaybeapromising,effectiveandsafeadministrationroutetopreventPCOinclinic.

简介：AIM:Toinvestigatetheefficacyofnon-buckledvitrectomywithclassicalendotamponadeagentsinthetreatmentofprimaryretinaldetachment(RD)complicatedbyinferiorbreaksandproliferativevitreoretinophathy(PVR).METHODS:Aretrospective,consecutiveandcaseseriesstudyof40patientswithinferiorbreakRDandPVR≥C1wasconducted.Allpatientsunderwentastandard3-port20-gaugeparsplanavitrectomy(PPV)withgasorsiliconeoiltamponadewithoutsupplementaryscleralbuckling.Thevitreousandallproliferativemembranewerecompletelyremoved,andretinectomywasperformedwhennecessary.Themeanfollow-upwas12.5months.Theprimaryandfinalanatomicsuccessrate,visualacuityandcomplicationswererecordedandanalyzed.RESULTS:Primaryanatomicsuccessratewasachievedin35of40eyes(87.5%)andthefinalanatomicsuccessratewas100%.ThemostcommoncauseofredetachmentwasrecurrentPVR.Thebest-correctedvisualacuity(BCVA)atfinalfollow-upwasimprovedin34eyes(85%),remainedstablein1eye(2.5%),andworsenedin5eyes(12.5%).Themeanvisualacuityatfinalfollow-upwasimprovedsignificantly(P=0.000).CONCLUSION:ThisretrospectivestudyprovidesevidencethatvitrectomywithoutscleralbucklingseemedtobeaneffectivetreatmentforinferiorbreakRDwithPVR.Withcompleteremovalofvitreousandproliferativemembranesandtimingofretinectomy,theinferiorbreakswhichcomplicatedwithPVRcouldbeclosedsuccessfullywithoutadditionalscleralbuckling.

简介：AIM:ToinvestigatetheeffectofY-27632onthesurvivalandneuriteoutgrowthoftheculturedretinalneurocytes.METHODS:Afterthepostnatalday2-3,Sprague-Dawleyretinalneurocyteswereculturedfor48hours,theculturemediawasreplacedwithserum-freemedia(controlgroup)andserum-freemediacontained30μmol/LY-27632(Y-27632group),andthecellswerecontinuallyculturedanother48hours.Theculturedretinalneurocyteswereidentifiedwithanti-neuronspecificenolase(NSE)immunocytochemistry.ThesurvivalstateofthosecellswasestimatedbyMTTassay,andtheneuriteoutgrowthofthosecellswasevaluatedbythecomputerizedimage-analysissystem.RESULTS:Comparedwiththecontrolgroup,theabsorbancevaluesofcellssurvivalinY-27632groupincreased12.90%and33.33%respectivelyafter72and96hoursculture.Y-27632hadnosignificanteffectonthediameterofculturedretinalneurocytes.Comparedwiththecontrolgroup,Y-27632inducedastableimprovementofneuriteoutgrowthofretinalneurocytesafter72and96hoursculture(P=0.001).CONCLUSION:Y-27632couldpromotethesurvivalandneuriteoutgrowthoftheearlypostnatalculturedretinalneurocytes.

简介：在我教的班里，每半学期学生都要提交一篇数学论文，目前正进行的论文题目是《轨迹的探究》．教材中探讨了到两个定点距离的和、差是定值的动点的轨迹，那么到两个定点距离的积或商为定值的动点的轨迹什么样？这样的曲线有什么性质？类似的，到一个定点和一条定直线的距离的比为定值的动点的轨迹我们知道，如果是“和”为定值呢？差或积是定值呢？最后，如果是到两条定直线（分平行与相交两种情况）的距离的和、差、积或商等为定值的点的轨迹又是什么？有什么性质？

简介：欢聚的高处,就是笑脸的开始;笑脸的高处,就像是音乐停止后袅袅空中的余音——笑脸就这样把看得见的和看不见的,以及需要想象的甜蜜、温暖、爱和希望,呈现在我们面前。笑脸里的生活,是一种安静的生活,是一种热情的生活——对他人没有苛求,没有恶意,也没有惧怕,只有心灵和心灵在一起,好像朝阳在里面照耀着我们。

简介：摘要本文探讨的是在当前基于核心素养培养的世界趋势和国家基础教育改革进行中，适合高中生学习的数学问题组导学的教学研究，结合亲身教学实践，举例说明了如何设置科学有效的问题组来点燃学生的智慧之火，以及通过问题组中的问题连接引领学生不断地对所学概念做出思考，并通过问题组引领学生深度思考，发展学生的数学核心素养，从而让数学课堂更加高效和愉悦。

简介：毛泽东观摩传统越剧《梁山伯与祝英台》,给予肯定评价。扮演梁山伯的范瑞娟发表了《我的丈夫,我的蜜月》一文后,成为焦点人物。毛泽东知情后表示:讲讲丈夫、蜜月也可以嘛!毛泽东在开国前从未观看过越剧,也不知道越剧有《梁山伯与祝英台》(下文简称《梁》)那么一出优秀传统剧目。建国后,从1950年到1952年,短短的两三年里,毛泽东先后在北京看过四次越剧,其中两次是