简介：Themaximummatchinggraphofagraphhasavertexforeachmaximummatchingandanedgeforeachpairofmaximummatchingswhichdifferbyexactlyoneedge.Inthispaper,weprovethattheconnectivityofmaximummatchinggraphofabipartitegraphisequaltoitsminimumdegree.

简介：图G的代数学的连接是它的拉普拉斯算符矩阵的第二个最小的特征值。让n是顺序n的所有树的集合。在这份报纸，我们将提供根据他们的最小的代数学的连接在n订树直到最后八棵树什么时候n13。这扩大邵等的结果。

简介：LetG=(V,E)beaconnectedgraphandmbeapositiveinteger,theconditionaledgeconnectivityλδmistheminimumcardinalityofasetofedges,ifitexists,whosedeletiondisconnectsGandleaveseachremainingcomponentwithminimumdegreeδnolessthanm.Thisstudyshowsthatλδ1(Qn,k)=2n,λδ2(Qn,k)=4n-4(2≤k≤n-1,n≥3)forn-dimensionalenhancedhypercubeQn,k.Meanwhile,anothereasyproofaboutλδ2(Qn)=4n-8,forn≥3isproposed.Theresultsofenhancedhypercubeincludethecasesoffoldedhypercube.

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简介：(VNE)虚拟网络嵌入是网络虚拟化的必要部分，它为未来网络被看作最有希望的方法之一。它的主要对象是高效地分配一个虚拟网络(VN)的节点和到一个分享的底层网络(SN)的连接。NP难、退出的研究提出了几个启发式的算法。然而，大多数算法仅仅考虑节点的本地资源，例如中央处理器和带宽(BW)，到决定嵌入，并且忽略网络属性的重要影响。基于全部网络的属性，在每个节点之间的连接的一个模型被提出测量节点，和一个新二阶段的嵌入算法评价的资源被建议。此后，印射的节点和印射的连接能联合被考虑。当减少运行时刻时，广泛的模拟证明建议算法由增加VN请求的收入/费用比率和接受比率改进VNE的性能。

简介：让T2k+1是有将近完美的匹配的2k+1顶点上的树的集合；α(T)是树T的代数学的连接。作者决定最大在T2k+1的树的代数学的连接的12价值。明确地，10树T2，T3，，T11；树T(1)的二个班；在T2k+1的T(12)被介绍。它在这被显示出为每树T1糊那[′]，T1[″]∈T(1)；T12[′]，T12[″]∈T(12)；每i，有2≤iα(Ti)>α(Tj)>α(T12[′])=α(T12[″])。它也与T∈T2k+1为每树T被看那(T(1)∪{T2，T3，，T11}∪T(12))，α(T12[′])>α(T)。

简介：TEConnectivity聚焦中国能源行业的发展与转型,以＂面向未来能源,实现智能连接＂为目标,领先推出全流程的新能源连接应用解决方案。该解决方案秉承严苛环境应用下的精密设计和卓越性能,是TE瞄准中国新兴能源行业：光伏/风能发电、蓄电储能、充电桩/电动汽车。

简介：摘要ObjectiveTo determine the mechanisms on cognitive improvement with repetitive transcranial magnetic stimulation (rTMS) over the left dorsolateral prefrontal cortex(L-DLPFC) in subacute stroke patients.MethodsTwenty-eight first-ever stroke patients with cognitive impairment were recruited. All subjects were randomly assigned to real or sham stimulation group and completed 10 sessions of rTMS for 2 weeks. 10 Hz of navigation rTMS were applied (5 s stimulation and 25 s resting, total 1500 pulses) on the L-DLPFC at 80% of resting motor threshold (rMT). At the time of baseline, 1 month and 3 months after stroke onset, all subjects received the Korean-mini mental state examination (K-MMSE), Korean-Montreal Cognitive Assessment (K-MOCA), Upper Fugl-Meyer Assessment (U-FMA), Korean-Modified Bathel Index (K-MBI), European Quality of life 5 Dimension (EQ-5D), Korean-Geriatric Depression Scale (K-GDS). In addition, the continuous performance test (CPT), vascular cognitive impairment harmonization standards (VCIHS), motor evoked potentials (MEP), event-related potentials (ERPs), resting state functional magnetic resonance imaging (RS fMRI) and diffusion tensor imaging (DTI) were completed at baseline and 3 months after stroke onset.ResultsAfter the intervention period, the real stimulation group improved significantly in the K-MMSE, K-MOCA, K-MBI and K-GDS compared with sham stimulation group. And these effects lasted after three months in MOCA. There was no significant time × group effect among the U-FMA, EQ-5D, and CPT. Among the VCIHS parameters, Z-scores of executive and memory function showed higher delta value between baseline and 3months timepoints in rTMS group. The MEP showed higher TIME × GROUP interaction in the intracortical inhibition value on right hand. It suggests that there is beneficial effect on premotor cortical excitability of rTMS. The change of P300 amplitude on F3 and C3 was more increased in real stimulation group significantly only in the auditry Oddball paradigm. The RS fMRI analysis results showed more increased functional connectivity of Cingulate Gyrus, Supramarginal Gyrus, Cerebelum Crus2, Precentral gyrus, Middle temporal gyrus and Inferial temporal gyrus after stimulation compared with the sham group. Brain activation in the cingulum showed a tendency that after 3 months, fractional anisotropy (FA) and fiber number (FN) in real group were larger than sham group, however there was no significant effect. The relationship between the change of K-MOCA and fractional anisotropy of the cingulum was found positive correlation in all subjects.ConclusionsThese results suggest that high frequency rTMS on the L-DLPFC improves cognitive function and functional network activity in subacute stroke. The rTMS seems to be a recommendable treatment in stroke patients with cognitive impairment.

简介：ThispaperdiscussestheconnectivityoftheessentialspectraofToeplitzoperatorswithsymbolsinH^∞-ConHardyspacesandweightedBergmanspacesforseveralcomplexvariables.

简介：在这糊，在限制下面平均距离和平均的度仍然保持近似不变，我们学习了随机的规模--免费网络模型。如果网络维持它的度分发和最大的度k_c的形式，我们发现了那isN依赖的截止功能k_c(N)

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简介：Thesuperedge-connectivityofagraphisanimportantparametertomeasurefault-toleranceofinterconnectionnetworks.ThisnoteshowsthattheKautzundirectedgraphissuperedge-connected,andprovidesashortproofofLueandZhang'sresultonsuperedge-connectivityofthedeBruijnundirectedgraph.

简介：Thestudyofneuronalplasticityunderpathologicalconditionsisnowamajorpointoffocusonthefieldofneurologicalrecovery.Aftertherepeatedfailureofacuteneuroprotectionstrategiesforstroketreatment,thedesignofstudiesaimedatpromotingthereconstructionofneuronalnetworkshasbecomeessential.Methodsforthedeliveryoftherapeuticagentsonasteadydosage,thuspreventingpharmacologicalpeaksorexcessivemanipulationofexperimentalanimals,arethusrequired.Additionally,methodsthatallowthevisualizationofneurologicalremodelingprocessesarefundamentaltotheunderstandingofhowatherapeuticagentexertsitsfunction.Herewedescribehowtheuseofminiosmoticpumpsforthesteadydeliveryofsuchagents,togetherwithtracttracerinjections,canbecombinedtounveilimportantinformationonhowthebrainchangesafterstrokeandhowtherapeuticagentspromotebrainremodelingrecovery.

简介：Inthispaper,theproblemoffault-tolerantroutingsinfault-tolerantnetworksisconsidered.Aroutinginanetworkassignstoeachorderedpairofnodesafixedpath.Allcommunicationamongnodesmustgoonthisrouting.Wheneitheranodeoralinkinafault-tolerantnetwork{ails,thecommunicationfromonenodetoanotherusingthisfaultyelementmustbesentviaoneormoreintermediatenodesalongasequenceofpathsdeterminedbythisrouting.Animportantandpracticalproblemishowtochoosearoutinginthenetworksuchthatintermediatenodestoensurecommunicationaresmallforanyfault-set,LetCdbeadirectedcycleoforderd.Inthispaper.Theauthor{irstdiscussesconnectivityofCartesianproductdigraphs,thenprovesthattheCartesianproductdigraphCd1×Cd2×…×Cdn(di≥2,1≤i≤n)hasaroutingsuchthatatmostoneintermediatenodeisneededtoensuretransmissionofmessagesamongallnon-faultynodessolongasthenumberoffaultsislessthann,ThisisageneralizationofDolevetal'sresultforthen-dimensionalcuhe.

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简介：在小世界网络基于我们的以前联合脉搏的integrate-and-Gre神经原模型，我们在这个模型生产的象electroencephalographic一样信号的复杂行为上调查不同连接拓扑学的效果。我们证明若干次，经常是的系列分析方法使用了分析electroencephalographic-likesignals的复杂行为，例如在重新可伸缩的范围分析(R/S)以内的阶段空间，关联尺寸，分数维的尺寸，和林中小丘代表的重建。我们发现不同连接拓扑学在integrate-and-fire神经原的模型导致不同动态行为。

简介：Manualacupunctureiswidelyusedforpainreliefandstresscontrol.Previousstudiesonacupuncturehaveshownitsmodulatoryeffectsonthefunctionalconnectivityassociatedwithoneorafewpreselectedbrainregions.Toinvestigatehowmanualacupuncturemodulatestheorganizationoffunctionalnetworksatawhole-brainlevel,weacupunctureatST36ofarightlegtoobtainelectroencephalograph(EEG)signals.Bycoherenceestimation,wedeterminethesynchronizationsbetweenallpairwisecombinationsofEEGchannelsinthreeacupuncturestates.Theresultingsynchronizationmatricesareconvertedintofunctionalnetworksbyapplyingathreshold,andtheclusteringcoefficientsandpathlengthsarecomputedasafunctionofthreshold.Theresultsshowthatacupuncturecanincreasefunctionalconnectionsandsynchronizationsbetweendifferentbrainareas.Forawiderangeofthresholds,theclusteringcoefficientduringacupunctureandpostacupunctureperiodishigherthanthatduringthepre-acupuncturecontrolperiod,whereasthecharacteristicpathlengthisshorter.Weprovidefurthersupportforthepresenceof'small-world'networkcharacteristicsinfunctionalnetworksbyusingacupuncture.Thesepreliminaryresultshighlightthebeneficialmodulationsoffunctionalconnectivitybymanualacupuncture,whichcouldcontributetotheunderstandingoftheeffectsofacupunctureontheentirebrain,aswellastheneurophysiologicalmechanismsunderlyingacupuncture.Moreover,theproposedmethodmaybeausefulapproachtothefurtherinvestigationofthecomplexityofpatternsofinterrelationsbetweenEEGchannels.

简介：Atpresent,theneuropathologicalmechanismsandtheplasticchangesofbraincognitivefunctioninpatentswithfrontlobetumorremainunclear,moststudiesjustfocusedonglobalmeasuresofbrainfunctionalconnectivitywithoutconsideringthetimecorrelationinthedifferentregionsofthebrain.Thisstudyaimstoinvestigatebraincognitivealterationsandfunctionalplasticityinpatientswithfrontlobetumoratresting-statebyconductingfunctionalconnectivitydensity(FCD)mappingandgrangercausalityanalysis(GCA).Firstly,FCDmappingwasusedtoextractabnormalfunctionalconnectivity(FC)ofpatientswithfrontallobetumor,andanalyzedalteredbrainFCinbothshort-andlong-rangeFCD.Then,thevoxel-wiseGCAmethodwasusedtoanalyzethecausalrelationshipbetweenalteredFCregionsandotherregionsinordertodetectthetimecorrelationbetweenregionsofinterest(ROI)andrevealthedirectionofinformationflowbetweenbrainROIs.Itwasfoundthatpatientshadincreasedshort-rangeFCDinmotorandspaceattentionfunctionareas,hadincreasedshort-andlong-rangeFCDsbothinTemporalandInsula,andthecausalcoefficientswerechangedobviouslyinTemporalandFrontal.Theresultsshowthatthereisafunctionalplasticityinspaceattentionfunctionareas.TemporalandInsulaareaffectedbytumorinfrontallobe,andfunctionalreorganizationappearsinsideTemporal.

简介：RespectedMr.JiBingxuan,Vice-ChairmanofNPC,RespectedMr.KumarNepal,formerPrimeMinisterofNepal,RespectedMr.LiuGuozhong,GovernorofShaanxiProvince,Dearguests,ladiesandgentlemen,friends.

简介：AbstractObjective:Subjective tinnitus is characterized by the perception of sound in the absence of any external auditory stimuli. This perceived sound may be related to altered intrinsic neural activity generated along the central auditory pathway. This retrospective study was designed to investigate regional homogeneity and functional connectivity in the resting-state brain activity of patients with tinnitus.Methods:We recruited tinnitus patients with normal hearing or mild hearing loss (n = 17) and age-matched healthy controls (n = 20), and examined regional homogeneity and functional connectivity in resting-state brain activity using resting-state functional magnetic resonance imaging data. The present study protocol was approved by the Institutional Review Board on Experimental Ethics at Sun Yat-sen University, China (approval No. SYSEC-KY-KS-2019-083).Results:Compared with normal controls, patients with tinnitus had significantly decreased regional homogeneity in the anterior lobe of the cerebellum and increased homogeneity in the inferior frontal gyrus (P < 0.05 corrected at a cluster-level). In addition, tinnitus patients showed enhanced functional connectivity between the inferior frontal gyrus and the ventral striatum and midbrain, as well as increased connectivity between the cerebellum and ventromedial prefrontal cortex (P < 0.05 corrected at a cluster-level). We also found decreased connectivity between the cerebellum and the anterior insula compared with controls (P < 0.05 corrected at a cluster-level).Conclusion:Abnormal connectivity in non-auditory brain structures, particularly those related to emotion processing, may be associated with tinnitus persistence.