简介:【摘要】语文教学中,教师最头疼的是改作文,学生最头疼的是写作文。因为不会写,就不愿写,抄袭就屡见不鲜。如何改变现状,走出舒适区,实现作文教学的突围,是摆在语文老师面前的难题。刚好今年碰上疫情,实行听停课不停学政策,钉钉软件大规模推广,于是笔者想到利用钉钉中的“打卡”程序,辅助于语文作文教学,探索新型的作文教学形式。
简介:摘要:随着市场经济的发展,建筑领域的管理方式、经营格局、办公理念的不断转化,钉钉运用而生,在一定程度上方便着以及统计。钉钉系统的运用,使得以往很多灰色空间都会被数字化消灭,使得行业得以阳光化运行。好的系统会跟随业务和人共同迭代,加速整个行业市场化竞争。数字化实名制管理平台,可以为建筑工人直接代发工资、集体投保,从根本上解决了农民工欠薪难题,在多个方面发挥其作用。
简介:本文利用K-泛函和光滑模的等价关系,研究Gamma算子加权逼近下的Stechkin-Marchaud不等式,并得到了Gamma算子关于ω^2φ(f,t)ω的逆结果。
简介:P2Psystemsarecategorizedintotree-basedandmesh-basedsystemsaccordingtotheirtopologies.Mesh-basedsystemsareconsideredmoresuitableforlarge-scaleInternetapplications,butrequireoptimizationonlatencyissue.Thispaperproposesacontentsubscribingmechanism(CSM)toeliminateunnecessarytimedelaysduringdatarelaying.Anodecansendcontentdatatoitsneighborsassoonasitreceivesthedatasegment.Noadditionaltimeistakenduringtheinteractivestagespriortodatasegmenttransmissionofstreamingcontent.CSMconsistsofthreesteps.First,everynoderecordsitshistoricalsegmentslatency,andadoptsgammadistribution,whichpossessespowerfulexpressionability,toexpresslatencystatistics.Second,anodepredictssubscribingsuccessratioofeveryneighborbycomparingthegammadistributionparametersofthenodeanditsneighborsbeforeselectinganeighbornodetosubscribeadatasegment.Theabovestepswouldnotincreaselatencyastheyareexecutedbeforethedatasegmentsarereadyattheneighbornodes.Finally,thenode,whichwassubscribedto,sendsthesubscribeddatasegmenttothesubscriberimmediatelywhenithasthedatasegment.ExperimentsshowthatCSMsignificantlyreducesthecontentdatatransmissionlatency.
简介:摘要:随着网络的发展,传统的家校沟通方式也在悄然改变,QQ群、微信群等逐渐成为家校沟通的主渠道,这些新型的沟通方式突破了时空限制,极大程度上提升了家校沟通的时效性。本文以钉钉平台为载体,探索更高效、便捷的家校沟通模式。
简介:摘要: 本文分别从老师的教和学生的学两大方面介绍了疫情防控期间如何提升钉钉线上教学效果,为教师线上教学提供参考。
简介:Wepresentanintegratedstand-alonesoftwarepackagenamedKaKs_Calculator2.0asanupdatedversion.Itincorporates17methodsforthecalculationofnonsynonymousandsynonymoussubstitutionrates;amongthem,weaddedourmodifiedversionsofseveralwidelyusedmethodsasthegammaseriesincludingγ-NG,γ-LWL,γ-MLWL,γ-LPB,γ-MLPB,γ-YNandγ-MYN,whichhavebeendemonstratedtoperformbetterundercertainconditionsthantheiroriginalformsandarenotimplementedinthepreviousversion.Thepackageisreadilyusedfortheidentificationofpositivelyselectedsitesbasedonaslidingwindowacrossthesequencesofinterestsin5'to3'directionofprotein-codingsequences,andhaveimprovedtheoverallperformanceonsequenceanalysisforevolutionstudies.Atoolbox,includingC++andJavasourcecodeandexecutablefilesonbothWindowsandLinuxplatformstogetherwithauserinstruction,isdownloadablefromthewebsiteforacademicpurposeathttps://sourceforge.net/projects/kakscalculator2/.
简介:TodevelopaNaI(Tl)detectorforinsituradioactivitymonitoringinthemarineenvironmentandenhancetheconfidenceoftheprobabilityofthegamma-spectrumanalysis,MonteCarlosimulationsusingtheMonteCarloN-Particle(MNCP)codewereperformedtoprovidetheresponsespectraofsomeinterestedradionuclidesandthebackgroundspectraoriginatingfromthenaturalradionuclidesinseawaterrecordedbyaNaI(Tl)detector.Anewlydeveloped75mm×75mmNaI(Tl)detectorwascalibratedusingfourreferenceradioactivesources137Cs,60Co,40Kand54Mninthelaboratorybeforethefieldmeasurementsinseawater.Asimulationmodelwasestablishedforthedetectorimmersedinseawater.ThesimulatedspectrawereallbroadenedwithGaussianpulsestoreflectthestatisticalfluctuationsandelectricalnoiseintherealmeasurement.Thesimulatedspectrashowthatthesingle-energyphotonsintothedetectoraremostlyscatteringlow-energyphotonsandthehighbackgroundinthelowenergyregionmainlyoriginatesfromtheComptoneffectofthehighenergyγ-raysofnaturalradionuclidesinseawater.Thesimulatedbackgroundspectrumwascomparedwiththeexperimentalonerecordedinfieldmeasurementandtheyseemtobeingoodagreement.Thesimulationmethodandspectracanbeusedfortheaccurateanalysisofthefiledmeasurementresultsoflowconcentrationradioactivityinseawater.
简介:BACKGROUND:Anaminoacidimbalancehasbeenconsideredtoberesponsibleforepilepsypathogenesis.Gamma-aminobutyricacid-Breceptor(GABA_BR)inhibitsvoltage-sensitivecalciumionchannelsandGABAorglutamicacid(Glu)neurotransmitterrelease,whichpromotesorinhibitsonsetanddevelopmentofepilepsy.OBJECTIVE:ToexploretheeffectofbaclofenonGBR1aandGBR2mRNAexpressioninthehippocampusofepilepticratsfollowingkainicacid(KA)induction,andtostudytheadaptabilityofGABA_BRsubunits.DESIGN,TIMEANDSETTING:Arandomized,controlled,animalexperimentbasedonmolecularbiologywasperformedattheLaboratoryResearchCenterofSecondHospitalAffiliatedtoSoochowUniversityfromNovember2005toMarch2006.MATERIALS:KAwasprovidedbySigma,USA.InsituhybridizationdetectionkitofGBR1aandGBR2wasprovidedbyWuhanBosterBiologicalTechnology,China.GABA_BRagonist(baclofen)wasprovidedbySigma,USA.METHODS:Forty-fourepilepticratswererandomlyallocatedtoepileptic(n=28)anddrugintervention(n=16)groups.Theepilepticgroupwasfurtherdividedintopost-epilepticsubgroupsatdifferenttimepoints:6,12hours,1,3,7,15,and30days(n=4).Thedruginterventiongroupwasfurtherdividedintointerventioncontrolssubgroupsatvarioustimepoints:6hours,1day,and3days(n=4).Fouradditionalratswereconsideredthenormalcontrolgroupandnotmodeled,butwereinjectedwithsalineinthehippocampalCA3region.MAINOUTCOMEMEASURES:GBR1aandGBRmRNAexpressionwasdetectedintherighthippocampalCA1,CA3,anddentategyrus(DG)areasofthecontrol,epileptic,andinterferencegroupsatvarioustimeintervalsaccordingtoinsituhybridizationresults.RESULTS:(1)Duringtheearlystageofepilepsy(6and12hours),GBR1aandGBR2mRNAexpressionwasdecreased,andexpressionwaslessthanthecontrolgroupatonedayafterKAinduction(P<0.05).mRNAexpressionwasincreasedintheDG,butwasgreaterthanthecontrolgroupatday3(P<0.05).ExpressioninthehippocampalCA1andCA3regi