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432 个结果
  • 简介:AMarkovianriskprocessisconsideredinthispaper,whichisthegener-alizationoftheclassicalriskmodel.ItisproperthatariskprocesswithlargeclaimsismodelledastheMarkovianriskmodel.Insuchamodel,theoccurrenceofclaimsisdescribedbyapointprocess{N(t)}_(t≥0)withN(t)beingthenumberofjumpsduringtheinterval(0,t]foraMarkovjumpprocess.TheruinprobabilityΨ(u)ofacompanyfacingsuchariskmodelismainlystudied.AnintegralequationsatisfiedbytheruinprobabilityfunctionΨ(u)isobtainedandtheboundsfortheconvergencerateoftheruinprobabilityΨ(u)aregivenbyusingageneralizedrenewaltechniquedevelopedinthepaper.

  • 标签: 风险程序 马尔可夫过程 方程式 解题方法
  • 简介:在分数之间的关系在风险分数系统(RSS)获得了的AIMTo分析与渗透keratoplasty(PKP)由希克斯等求婚了在1y的接枝失败手术后地并且在在有PKP接枝失败的风险的RSS的每个因素之中使用univariate和multivariateanalysis.METHODSThe有的回顾的队学习152从152个病人的PKP。十八个盒子由于主要失败(10个盒子)从我们的学习被排除,不完全的医药笔记(5个盒子)和后续不到1y(3个盒子)。我们从134个病人包括了134PKP在外科手术前的风险分数成层。枪兵系数在1y为在获得的分数和失败的风险之间的关系被计算。Univariate和multivariate分析为在1y.RESULTSSpearman系数在接枝失败上在RSS包括的每个单个风险因素的影响被计算在在RSS和接枝失败的分数之间的显示出的统计上重要的关联(P<0.05)。Multivariate逻辑回归分析没显示出统计上重要的关系(P>0.05)在有接枝失败的诊断和透镜地位之间。在因素学习了的另外的风险和接枝失败之间的关系是重要的(P<0.05),尽管以前的接枝的结果和接枝失败是不可靠的。这样,任何一个都没我们的病人有以前的输血它没有impact.CONCLUSIONAftermultivariate分析技术的申请,一些风险因素不在1y在接枝失败上显示出期望的影响。

  • 标签: 渗透 keratoplasty 接枝失败 20
  • 作者: WangMeimei
  • 学科: 社会学 >
  • 创建时间:2018-12-22
  • 出处:《青年生活》 2018年第12期
  • 机构:AbstractThereisatrendtowardsrisk-freeactivitiesforchildrenasparentsarebecomemoreconcernedaboutdangersandharmsinchildren’sspaceandtheirparentingstylestendtobecomeveryrisk-adverse.However,manypeoplearebecomingworriedabouttheharmof“cottonwoolculture”insulatingchildrenfromallpossibledangersandharms.
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  • 简介:作为一个公事包管理工程的积极影响被比较一个工程公事包的综合风险和独立实现的单个工程风险的聚集的价值确定。第一,综合风险被基于集合理论建议危险事件定义。第二,在一个工程公事包与对方一起作为工程交往,综合风险被使用一个贝叶斯的网络评估构造风险的一个相互依赖的网络的结构学习算法。最后,一个实际盒子的综合风险用这个方法被估计,并且结果证明建议方法是为计算实现一个工程公事包并且识别的风险减小的程度的一个有效工具最危险工程,以便在在控制的公事包选择和公事包的阶段做全面决定帮助公司。

  • 标签: 工程公事包 综合风险 集合理论 贝叶斯的网络 冒险评价
  • 作者: WangMeimei
  • 学科: 社会学 >
  • 创建时间:2018-12-22
  • 出处:《青年生活》 2018年第12期
  • 机构:AbstractThereisatrendtowardsrisk-freeactivitiesforchildrenasparentsarebecomemoreconcernedaboutdangersandharmsinchildren’sspaceandtheirparentingstylestendtobecomeveryrisk-adverse.However,manypeoplearebecomingworriedabouttheharmof“cottonwoolculture”insulatingchildrenfromallpossibledangersandharms.Thisessayattemptstodiscusswhether“zero-risk”spaceisreallygoodforchildrenbyevaluatingthebenefitsofriskinchildren’splayandalsotheharmsofrisk-aversionforchildren.
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  • 简介:Intheprocessofperformanceofthesalescontract,thesubjectmatterisnotcausedbythecauseofbothpartiesandtheloss,andthatdamageshouldbebornebywhichpartyinthecontractisinvolvedinthesalescontractriskburden.Itisrelatedtothefundamentalinterestsofbothbuyersandsellers.Therefore,thisissuehasbecomeamatterofgreatconcerntobothbuyersandsellers.Itisalsooneofthemostimportantlegalissuesinthesalescontractandplaysaveryimportantroleinthecontractlaw.Thispaperisaimingattheissuesoftheburdenofriskinbusinesscontractandtheimprovementofthesystemofriskofbusinesscontractlegislationsuggestions,inordertomakecontractriskburdenhasacertainroleinpromoting.

  • 标签: SALES CONTRACT RISK BEARING OWNERSHIP THEORY
  • 简介:Allorganisms,rangingfromsingle-celledorganismstohumans,demonstratecircadianrhythmsthatarenear24-hpatternsthatarepresentindependentofenvironmentalcues.Disruptionofthisprocess,calledcircadianmisalignment,isassociatedwithdeleterioushealthoutcomes.Themostextremeexampleofthismisalignmentisshiftwork,andthereisevidencesuggestingastrongassociationbetweenshiftworkandcertaincardiovascularoutcomes.Theoutcomesofmoststudiesincludeobesity,metabolicsyndrome,hypertension,type2diabetesmellitus,atrialfibrillation,andcardiovascularevents.Inthisarticlewereviewthecurrentliteraturewithanemphasisonwomen’scardiovascularhealth.Thedataareconflicting,andthereisapaucityofrobustevidencewithregardtowomen’scardiovascularhealthandcircadianmisalignment.Morestudiesareneededtobetterdelineatethesexdifferencesaswellasthepathophysiologyoftheassociationsbetweencircadianmisalignmentandcardiovasculardiseasessothatwecanprovidepatientswithmorepersonalizedcare.

  • 标签: SHIFT work CIRCADIAN MISALIGNMENT METABOLIC syndrome
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  • 简介:GivenanewDouble-MarkovriskmodelDM=(μ,Q,ν,H;Y,Z)andDouble-MarkovriskprocessU={U(t),t≥0}.Theruinorsurvivalproblemisaddressed.Equationswhichthesurvivalprobabilitysatisfiedandtheformulasofcalculatingsurvivalprobabilityareobtained.Recursionformulasofcalculatingthesurvivalprobabilityandanalyticexpressionofrecursionitemsareobtained.TheconclusionsareexpressedbyQmatrixforaMarkovchainandtransitionprobabilitiesforanotherMarkovChain.

  • 标签: 马尔可夫链 风险模型 生存概率 递归公式 解析表达式 风险过程