简介：Becauseofitswideapplicationinanonymousauthenticationandattribute-basedmessaging,theattribute-basedsignatureschemehasattractedthepublicattentionsinceitwasproposedin2008.However,mostoftheexistingattribute-basedsignatureschemesarenolongersecureinquantumera.Fortunately,lattice-basedcryptographyoffersthehopeofwithstandingquantumcomputers.Andlatticeshaselevatedittothestatusofapromisingpotentialalternativetocryptographybasedondiscretelogandfactoring,owingtoimplementationsimplicity,provablesecurityreductionsandquantum-immune.Inthispaper,thefirstlatticeattribute-basedsignatureschemeinrandomoraclemodelisproposed,whichisprovedexistentialunforgeabilityandperfectprivacy.Comparedwiththecurrentattribute-basedsignatureschemes,ournewattribute-basedsignatureschemecanresistquantumattacksandhasmuchshorterpublic-keysizeandsignaturesize.Furthermore,thisschemeisextendedintoanattribute-basedsignatureschemeonnumbertheoryresearchunit(NTRU)lattice,whichisalsosecureeveninquantumeraandhasmuchhigherefficiencythantheformer.

简介：我们在原生生物Trichomonasvaginalis的最近的调查与120.9nt的单位长度建议了DNA顺序频率，它为放的nucleosome代表顺序签名。我们现在在更高的优核质扩大了我们的观察并且在Caenorhabditiselegans在长度识别了175nt的类似的频率。在定义顺序的过程组合特征，我们发现10.5-nt频率，DNA双螺旋的顺序签名，不能为放的cross-nucleosome足够，但是提供指导栏杆便于的必需品放。我们推进把的保护nucleosome的序列并且从第5'-e识别了一个强壮的积极嘌呤(AG)坡度到第3'-e，并且当嘌呤内容断然与GC内容被相关，也听说充实nucleosome的区域作为与nucleosome免费的序列相比GC富有。顺序描述允许我们开发一个隐藏的Markov模型(唔)为译码nucleosome放的算法计算地，并且基于从C的第五个染色体的一套训练数据。elegans，我们的算法比随机的放预言了放得好的nucleosomes的60%-70%，它高是15%-20%。我们断定nucleosomes随机没在DNA序列上被放并且还与可变稳定性，DNA上的放得好的nucleosomes叶子顺序签名，并且到对面的nucleosomes的统计的放绑在不同染色体区域染色体能基于这些顺序签名计算地被译码。

简介：ＳｏｍｅｇｅｏｌｏｇｉｃｓｉｇｎａｔｕｒｅｓｏｆｆａｕｌｔｃｒｅｐｉｎｔｈｅｃｏｎｔｉｎｅｎｔａｌａｒｅａｏｆＣｈｉｎａＨＯＮＧＦＡＸＩＡＮＧ（向宏发）ＳＨＵＮＭＩＮＧＵＯ（虢顺民）ＷＡＮＸＩＡＺＨＡＮＧ（张晚霞）ＢＩＮＧＬＩＡＮＧＺＨＡＮ...

简介：

简介：Wecommunicatemanydifficultiesthatweencounterwhenattemptingtopinpointacommonoriginfortheseveralobservedanomalies[1;2]orassessingtheirtensionwithexistingexclusionlimits.Theseincludesystematicsaffectingtheoperationofthedetectors,ourknowledgeoftheirresponse,astrophysicaluncertainties,andthebroadrangeofparticlecouplingsthatcanmediatetheinteractionwithadetectortarget.Theinterestingastrophysicalevidence[2]thatmotivatesasearchfordark-photonandfocusesourattentiononaHiddenValleysmodelwithaGeV-scaledarksectorthatproducesexcitingsignatures.Resultsfromtherecentundergroundexperiments[1]arealsoconsidered.

简介：Emeishan洪水暗岩能被划分成high-Ti(HT)暗岩(Ti/Y>500)和low-Ti(副)暗岩(Ti/Y<500)。Sr，熔岩的Nd同位素的特征显示副--并且HT类型岩浆从不同披风来源和父母岩浆发源。TheLT类型岩浆从更浅的石版印刷被导出球的披风，而HT类型岩浆从更深的披风来源被导出，那可以是可能一根披风羽毛。然而，theEmeishan洪水暗岩上的很少研究包含了他们的Pb同位素，特别Ertan暗岩。在这篇论文，作者以Pb同位素从Ertan区域调查了暗岩样品，充满暗岩以便抑制Emeishan的来源。~(206)的比率Pb/~(204)Pb(18.31-18.41)，~(207)Pb/~(204)Pb(15.55-15.56)和~(208)Pb/~(204)Pb(38.81-38.94)比弄空的披风的那些显著地高，就躺在他们Ⅰ和他们Ⅱ之间。这显示EmeishanHT暗岩(在Ertan区域)是他们Ⅰ结束成员和他们Ⅱ结束成员混合的结果。

简介：

简介：Magneticspectrumoftheelectromagneticioncyclotronwavesintheterrestrialplasmadepletionlayer（PDL）aresometimesobservedtohaveaBIF（bifurcated）signature,whereadiminutionaround0.5ΩpwithΩptheprotongyrofrequency,occursbetweentwoactivitypeaksinthespectrum.Byone-dimensionalhybridsimulations,theeffectofrelativedriftvelocitiesbetweenprotonsandHe2+onthemagneticspectralsignaturesinthePDLisstudied.Theresultsshowthattherelativedriftvelocityenhancesthedevelopmentofprotoncyclotronwavesanddeclinesthedevelopmentofheliumcyclotronwaves.Theprotoncyclotronwavesarefirstlyexcited,andfollowedbytheexcitationofheliumcyclotronwavesduetotheincreaseintherelativedriftvelocity.Moreover,theboundarybetweentwoactivitypeaksgetsobscure.

简介：Objective:DiffuseLargeBCellLymphoma(DLBCL)isaheterogeneousgroupoftumorswithdifferentbiologicalandclinicalcharacteristicsthathavediverseclinicaloutcomesandresponsetotherapy.Stromal-1signatureoftumormicroenvironmentofDLBCLrepresentsextracellularmatrixdepositionandhistiocyticinfiltrate,whereasstromal-2representsangiogenesisthatcouldaffecttumorprogression.Methods:Theaimofthepresentstudyistoassessthesignificanceofstromal-1signatureusingSPARC-1andstromal-2signatureusingCD31expressionandthenfinallytoconstructbiologicprognosticmodel(BPM)in60casesofDLBCLviaimmunohistochemistry.Results:Microvesseldensity(P<0.05)andSPARCpercentageofexpression(P<0.001)werehigherinDLBCL,includinggerminalandnongerminalcases,comparedwithreactivefollicularhyperplasia.Highmicrovesseldensitywassignificantlyassociatedwithsplenicinvolvement(P=0.008),highmitoticcount(P=0.045),andpresenceofcapsularinvasion(P=0.035).PercentageofSPARCexpressionwassignificantlyassociatedwithsplenicinvolvement(P=0.03).ConstructingBPMshowedthat42cases(70%)wereoflowbiologicscore(0–1)and18cases(30%)wereofhighbiologicscore(2–3).LowBPMcasesshowedlessprobabilityforsplenicinvolvement(P=0.04)andahigherrateofcompleteresponsetotherapycomparedwithhighscorecases(P=0.08).Conclusions:TheDLBCLmicroenvironmentcouldmodulatetumorprogressionbehaviorsinceangiogenesisandSPARCpositivestromalcellspromotedisseminationbyassociationwithspleeninvolvementandcapsularinvasion.Biologicprognosticmodels,includingmodifiedBPM,whichconsideredcelloriginofDLBCLandstromalsignaturepathways,coulddetermineDLBCLprogressionandresponsetotherapy.