简介：“Peopleneedtoknowthattheycanbetestedwithoutshame;thatiftheyareinfectedtheywillbetreated;thatiftheyfallill,theycanlivesafefromdiscrimination”-KofiAnnan,Hangzhou,China,October2002

简介：AnewnonparametricprocedureisdevelopedtotesttheexponentialityagainstthestrictNBUCpropertyofalifedistribution.Theexactnulldistributionisderivedbythetheoryofsamplespacings,andtheasymptoticnormalityisalsoestablishedbythelargesampletheoryofL-statistics.Finally,theloweranduppertailedprobabilityoftheexactnulldistributionandsomenumericalsimulationresultsarepresentedaswell.

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简介：在这篇论文，我们在场为有限p组的等级的锋利的界限以它的coexponent。至于有p的有限p组奇怪，我们也给正常等级等于它的等级的一个足够的为条件。

简介：在这研究，我们比较了由我们与慢可编程的结冰的快速的结冰的内部方法人的精子结冰/融化重复的效果。从11个normozoospermic题目的精子样品通过密度坡度被处理并且把aliquots划分了成三：非结冰，快速的结冰并且慢可编程的结冰。在快速的结冰组的精子活动性和生存能力最好在慢结冰比那些组织(P<；0.01)在结冰/融化的第一，第二和第三个周期以后，但是在形态学没有差别。在第二个实验，快速的结冰在20个题目被重复三次。从每个融化的周期的样品用碱的彗星试金为DNA破碎被评估。DNA破碎开始在结冰/融化的第二个周期以后更加增加了。在第三个实验，快速的结冰在10个题目反复被做，直到没有能动精子在融化以后被观察。结冰/融化那个产出的不能动的精子重复的中部的数字是七(范围：5-8，意味着：6.8)。在结论，我们表明了那我们的快速的结冰方法给了更好的结果比的使用的处理精液结冰/融化重复标准慢可编程的结冰。这个方法能帮助在帮助繁殖技术最大化宝贵cryopreserved精子样品的用法。

简介：这篇论文以一种分布式的方式考虑多代理人系统的形成控制问题。在多重代理人之中宣传拓扑学的信息的二个盒子，由图形模型描绘了，被考虑。一个人是固定拓扑学。其它正在交换代表有限、不太可靠的信息交换的拓扑学。在这篇论文建立的本地形成控制策略基于存在一致控制策略的简单修正。而且，一些存在集中条件被显示甚至在连续时间的一致盒子中是我们的模型的一种特殊情况。因此，这篇论文的结果关于一致问题扩大存在结果。

简介：组G的Wielandt亚群，由w(G)表示了，是G的所有低于正常的亚群的normalizers的交叉。在这份报纸，作者为每整数i为最大的班G，为所有整数i的任何一个wi(G)=i(G)或wi(G)=i+1(G)的p组显示出那，并且为在有K1的G的每正常亚群K的w(G/K)=(G/K)。同时，为最大的班的常规p组的一个必要、足够的条件令人满意的w(G)=2(G)被给。最后，如果G是有基本z(G)的non-abelianp组，作者证明力量自守组PAut(G)是基本abelianp组?\mho1(G)\zeta(G)\cap\mho_1(G)。

简介：这篇论文问一个新问题：我们怎么能控制集体行为组织ofself的多代理人系统？我们试着由建议新观点called'SoftControl'回答这个问题，它把存在代理人的本地规则放在系统。我们由案例研究显示出软控制的可行性。考虑简单却典型的分布式的multi-agentmodel由Vicsek等求婚了。为鸟结队：每个代理人以一样的速度，但是与基于它的自己的标题的一般水准用一条本地规则被更新的不同标题和它的邻居的标题移动。这个模型的大多数研究关于self-organizedcollective行为，例如标题的同步。我们想要由软控制在这个组的集体行为(标题)干涉。一个指定方法是增加一个特殊代理人，叫了一个“党羽”，它能被我们控制，但是被另外的代理人当作一个平常的代理人。我们为党羽构造一条控制法律以便它能同步整个组到一个客观标题。这条控制法律被证明是有效经分解并且数字地。注意软控制与分布式的控制的途径不同。在分布式的系统干涉是一个自然方法。它可以在复杂系统的控制上拿出许多有趣的问题和挑战。

简介：Thispaperdealswiththevectorcontrol,includingboththedirectvectorcontrol(DVC)andtheindirectvectorcontrol(IdVC),ofinductionmotors.ItiswellknownthattheestimationofrotorfluxplaysafundamentalroleintheDVCandtheestimationofrotorresistanceisvitalintheslipcompensationoftheIdVC.Intheseestimations,theprecisionissignificantlyaffectedbythemotorresistances.Therefore,onlineestimationofmotorresistancesisindispensableinpractice.Forafastestimationofmotorresistances,itisnecessarytoslowdowntheconvergencerateofthecurrentestimate.Ontheotherhand,forafastestimationoftherotorflux,itisnecessarytospeedupitsconvergencerate.Itisverydifficulttorealizesuchatrade-offinconvergenceratesinafullorderobserver.Inthispaper,weproposetodecouplethecurrentobserverfromthefluxobserversoastorealizeindependentconvergencerates.Then,theresistanceestimationalgorithmisappliedtobothDVCandIdVC.Inparticular,intheapplicationtoIdVCthefluxobserverneedsnotbeused,whichleadstoasimplerstructure.Meanwhile,independentconvergenceratesofcurrentobserverandfluxobserveryieldanimprovedperformance.Asuperiorperformanceinthetorqueandfluxresponsesinbothcasesisverifiedbynumeroussimulations.

简介：让G是混合p的Warfield可换群和F字符F=p的一块地别等于0。如果为任何组H组代数学FH和FG是F同形的，它被证明那，那么他的对G同形。这个演讲扩大G是p本地的WarfieldAbelian并且在Proc出版的说服的W.5月的结果。Amer。数学。Soc。(1988)。

简介：AbstractPurpose:By comparing the outcomes of total hip arthroplasty with hemiarthroplasty in elderly patients with a femoral neck fracture to investigate the one-year mortality, dislocation, infection, reoperation rate, and thromboembolic event.Methods:The PubMed, EMBASE databases, and Cochrane library were systematically searched from the inception dates to April 1, 2020 for relevant randomized controlled trials in English language using the keywords: "total hip arthroplasty" , "hemiarthroplasty" and "femoral neck fracture" to identify systematic reviews and meta-analyses. Two reviewers independently selected articles, extracted data, assessed the quality evidence and risk bias of included trials using the Cochrane Collaboration’ stools, and discussed any disagreements. The third reviewer was consulted for any doubts or uncertainty. We derived risk ratios and 95% confidence intervals. Mortality was defined as the primary outcome. Secondary outcomes were other complications, dislocation, infection, reoperation rate, and thromboembolic event.Results:This meta-analysis included 10 studies with 1419 patients, which indicated that there were no significant differences between hemiarthroplasty and total hip arthroplasty in reoperation, infection rate, and thromboembolic event. However, there was a lower mortality and dislocation rate association with total hip arthroplasty at the one-year follow-up.Conclusion:Based on our results, we found that total hip arthroplasty was better than hemiarthroplasty for a hip fracture at one-year follow-up.

简介：notmorethan与notlessthan、nomorethan与nolessthan用法极易混淆。下面试用对比方法给以归纳，希望能给同学们一点帮助。

简介：Dongethnicpeoplehaverichindigenousknowledgeintermsoftheirdailylifeandproduction,whichplaysanimportantroleinthesustainabledevelopmentoftheirvillage.ThispaperaimstounderstandtraditionalknowledgeofDongethnicpeopleinresourcemanagementandpopulationcontrol,includingtraditionalresourcemanagement,traditionalmedicinalknowledgeandvillageregulationsinZhanliVillageinSoutheastGuizhouProvince.Theresearchmethodsincludekeyinformantinterview,groupdiscussion,participantobservationandsecondarydatacollect-ing.TheresultsshowthatZhanlivillagerstrytheirbesttoutilizeindigenousknowledgetomanagethenaturalresourcesandkeepthestablepopulationtomakethemselvesliveinasustainableway.Indigenousknowledgeplaysanimportantroleinmanagingtheirlimitednaturalresourcesandkeepingthepopulationstableunderanexcellentcondition.Zhanlivillagersemployindigenousknowledgetomanagenaturalresourcesanduselocalherbstocontrolthepopulation.Villageregulationtermssignificantlyinfluencevillagers’awarenessinresourcemanagementandbirthcontrol.Womenplaythechiefroleinemployingindigenousknowledgeinweavingaswellasmedicinalknowledgeinbirthcontrol,andthesekindsofknowledgearepasseddownthroughthefemaleline.However,theinheritancestyleoftraditionalknowledgeisdecreasing.Indig-enousknowledgeplaysanimportantroleinthesustainabledevelopmentofthisvillage,whichgivesimplicationsfordevelopmentpracticestoinvolveindigenousknowledgetoachievesustainabledevelopment.

简介：在英语中，有些短语从结构上看很相似，但在意义上却并不一样，如morethan,more..,than///nomorethan,notmorethan///nomore..,than,notmore..,than//nolessthan,notlessthan等，这些短语的用法可从以下几个方面进行对比记忆：

简介：morethan和no(not)morethan不仅仅是反义词，它们在不同的句子中表示不同的意思，列举如下：

简介：Ⅰ.morethan。1.表“多于、超过”，其后面常跟数词或相当于数词的词。

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简介：BackgroundCentralaorticsystolicbloodpressure(CASP)hasbeenshowntobeastrongerpredictoroftarget-organdamageandcardiovasculareventsthanbrachialsystolicbloodpressure(BSBP),buttherewasnodataaboutwhetherCASPcanpredictprolongedQRSdurationmorethanBSBP.WeexaminedtheassociationofCASPandBSBPwithQRSdurationinruralcommunityresidents.MethodsWeretrospectivelyanalyzed490ruralcommunityresidents.Standardresting12-leadECGandcentralaorticbloodpressure(CABP)weremeasurednoninvasivelyinallsubjectsatbaseline.TheQRSdurationwasequaltoormorethan120msbeingdefinedasprolongedQRSduration.ResultsTheprolongedQRSdurationgroupshowedhigherCASP(139.38±11.67vs.135.36±16.22,P=0.031)andBSBP(136.03±6.74vs.124.44±13.01,P<0.001)ascomparedwithcontrols.MultivariatelinearregressionanalysisshowedthatCASP,BSBPandheartratewereindependentlyaffectingQRSduration.LogisticregressionanalysesshowedthatCASP(OR1.057,95%CI:1.027,1.088,P<0.001)andBSBP(OR1.056,95%CI:1.027,1.086,P=0.032)wereindependentpredictorsofprolongedQRSdurationafteradjustmentforage,sex,bodymassindex,heartrate.CASPhadabetterpredictivevalueforprolongedQRSdurationthan(AUC:0.793vs.0.601,P<0.001)BSBP.ConclusionsOurfindingsdemonstratethatbothCASPandBSBParerisksforprolongedQRSduration,butCASPcanpredictprolongedQRSdurationbetterthanBSBP.

简介：LetGbeap-seriesgroupandΩbeacompactsubgroupofG.Letλ(x,r)andλ,(x,r)beA-belp-poissontypekernelandproducttypekernelOnΩrespectively.Inthispaperwediscusstheap-proximationpropertiesofsuchkernels,givetheestimate5oftheirmoments,obtainthedirectandin-verseapproximationtheorems.

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