简介：美洲的原住民英文称为NativeAmericans，他们一直保留着原有的传统，比如过狂欢节，那是一个人们载歌载舞的喜庆活动。

简介：Murphy＇sLawThisisahigh-levelEnglishexpressionthatiseasytouseand--intheIELTSspeakingtestforexamplecouldraiseyourscoresignificantly!这种是高水平表达，容易使用——如雅思口语考试时用它可以大大加分的!

简介：InthispapersomeequivalencedefinitionsaregivenfornativespaceswhichwereintroducedbyMadychandNelsonandhavebecomeinfluentialinthetheoryofradialbasisfunctions.Theabstractelementsinnativespacesareinterpreted.Moreover,WeinrichandIske'stheoriesareunified.

简介：在光线的基础功能的理论，数学家们把光线的基础功能的translates的线性联合用作interpolants。这些线性联合的集合是一个normed向量空格。这个空格能被完成并且变得一个Hilbert空格，叫了本国的空间，它在最后十年是很重要的。本国的空格然后包含不是光线的基础函数的线性联合的一些抽象元素。这些抽象元素的意思充分不被知道。这份报纸为这些元素论述一些解释。本国的空格被嵌进一些著名空格。例如，Sobolev空间被显示是一个本国的空格。因为许多微分方程在Sobolev空间有答案，我们能因此接近由光线的基础功能的线性联合的答案。而且，嵌进本国的空间L2()的著名问题被作者也解决。

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简介：Nativetreesplayimportantrolesinurbanforestry,suchasadeepculturalbackground,astrongecologicaladaptability,ahighperformance-costratioandaconvenientmanagement.Butnowtherearesomedifficultiesinnativetrees'utilizationandpopularizationduetofewstudyonlandscapeplant.Inordertoseekanabnormalandartificiallandscapingandtoproduceaneffectiveresultassoonaspossible,nativeandforeignplantscanbeproperlyusedasanavailableresourcebyimprovingtheirtechnologicallevelandemphasizingnaturalbalance.ThenChineseclassiccultureandgreeneconomicscanbecombinedwithbeautifulforestrybyimplementingurbansustainabledevelopment.

简介：AbstractVascular access is the lifeline of hemodialysis patients. There are great differences in the establishment and use of vascular access in different countries and regions around the world. We believe that on the basis of good evaluation and planning, it is recommended that hemodialysis patients choose native arteriovenous fistula first. In view of the new progress of vascular access views domestic and international at home and abroad in recent years, we organized experts to recommend the establishment and maintenance of arteriovenous fistula (AVF) for the Chinese population, including preoperative evaluation and planning of the establishment of AVF, AVF surgery, perioperative drug intervention measures and postoperative maintenance, and put forward suggestions for future research directions. The recommendations in this consensus are general and clinicians need to make treatment decisions based on the actual situation.

简介：本文以语言学、认知心理学和学习论等理论为指导,根据中国学生在非目标语交际环境中对某些词素习得序列的研究成果,探讨词素习得在目标语与非目标语交际环境中的异同特点。作者提出,语言习得和语言学习是一个互为依托的认知过程,只要在语言课堂里能给学生提供有效而丰富的语言理解输入,语言习得是一种渐进而有序的必然现象。比较研究证明,学习与习得过程要受语言内部规律的制约。国内外词素习得序列的研究成果对语言教学和教材编写有积极意义。

简介：Thepaperpresentsadetailedanalysisofexperimentaldatainordertocharacterizetheelasticpropertiesofarteries.Suchanalysiswouldprovideagoodbasisforevaluationofbiomimeticvasculargrafts.Sincethelatterneedstoexhibitsimilarpropertiesofnativetissue,itisimportanttoaccuratelycharacterizethebiomimeticsampleinalargerangeofappliedstresses.Thestress-strainpropertiesvaryaccordingtothespecificpathology(e.g.arteriosclerosis,aneurism)andthetissuegraftmustbechosencorrectly.Twomodelsareproposedinthispaperonthestress-straincharacteristics.Anextensionforfrequency-domainanalysisisprovidedforoneofthemodels.Thecomparisonbetweenvasculargraftsandnativetissueforcarotidandthoracicarteriesinpigsareingoodagreementwithresultsfromliterature.Theproposedexperimentalmethodofferssuitableparametersforidentifyingmodelswhichcharacterizebothelasticityandstiffnesspropertiesoftheanalyzedtissues(stress-strain).Theproposedmodelsshowgoodperformanceincharacterizingtheintrinsicmaterialproperties.

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简介：Itisreportedthatnon-nativeEnglishSpeakingTeachers’knowledgeandperformancearesubordinatetoNativeEnglishSpeakingTeachers’andstudentsholdanegativeattitudetowardsnon-nativeEnglishSpeakingTeachers.Thepaperexploresstudents’attitudestowardsbothgroupsofteachersfrompreviousstudies,suggestsschooladministratorsnotrushtoemployNativeEnglishSpeakingTeachersbeforeconsideringstudents’attitudesandrecommendsnon-nativeEnglishSpeakingTeacherstoenhanceEnglishproficiency,capitalizeonpedagogicalskill,interpersonalskillandpersonalqualitiesforeffectiveteaching.

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简介：ThedistributionandtransformationofaddedandnativeNiinpurplesoilswereinvestigatedwithbothsequentialextractionprocedureandisotopictracertechnique.ThedistributionofaddedandnativeNiwasgreatlydependentonsoilproperties.LowsoilpHwasfavorableforsolubleplusexchangeable(EX)Fraction,whileFe/MnoxidesandclayforFe/Mnoxidebound(OX)andresidual(RES)fractions.TheaddedNi,however,hasnotyetreachedthedistributionequilibriumuptothe150thdayafterincubation.ThiswasreflectedinthefactthattheproportionofEXfractionfromaddedNiwas150%-600%asmuchasthatofnativeNi,whilethatofRESfractionwasonlyabout80%,Onceenteringsoil,theappliedsolubleNiwasrapidlytransformedintootherfractions,buttheorganiccomplexe(OM)fractionofaddedNiwasrelativelystableduringincubation.Thecarbonatebound(CAB)fractionshowedaprogressiveincreaseandattainedapeakvalueafter0-14dofincubationandthereafterdecreasedgradually.TheoccurrencetimeofthispeakadvancedasinitialsoilpHincreased.butthepeakwoulddisappearwheninitialsoilpHwashigherthan7.5(orcontainingfreeCaCO3).ThetransformationprocessesoftheEX,OXandRESfractionscouldbedescribedbyElovichandtwo-constantrateequations,andtheratewerepositivelycorrelatedwithsoilpH,CECandclay.ThesefindingcouldexplainwhytherearedifferencesinecologicalandenvironmentaleffectsofNiindifferentsoilsandatvariousintervals.

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简介：ThispaperstudiestheelectronicstructureandnativedefectsintransparentconductingoxidesCuScO2andCuYO2usingthefirst-principlecalculations.Sometypicalnativecopper-relatedandoxygen-relateddefects,suchasvacancy,interstitials,andantisitesintheirrelevantchargestateareconsidered.Theresultsofcalculationshowthat,CuMO2(M=Sc,Y)isimpossibletoshown-typeconductivityability.ItfindsthatcoppervacancyandoxygeninterstitialhaverelativelylowformationenergyandtheyaretherelevantdefectsinCuScO2andCuYO2.Coppervacancyisthemostefficientacceptor,andunderO-richconditionoxygenantisitealsobecomesimportantacceptorandplaysanimportantroleinp-typeconductivity.

简介：敌人版本假设建议那异国情调的种能由在他们的新奇环境逃离食肉动物和寄生虫变得侵略。Agrawal等。（敌人版本？有同种的植物对的一个实验并且多样未葬、地下敌人。生态学，86，29792989)建议在哪个介绍种类的损坏是低的区域或时间为本国的产地的侵略提供机会。我们测试了装饰背景是否可以为树和灌木向区域提供herbivory的底层，潜在地便于侵略成功。首先，我们在辛辛那提在装饰、自然的背景在本国、异国情调的种类之中比较了叶herbivory的层次，俄亥俄，美国。在第二研究，我们比较了herbivory的层次为侵略并且noninvasive在自然、装饰的背景之间的异国情调的种类。我们比为本国的种类为异国情调的种类发现了叶损坏的底层；然而，我们发现在叶损坏的数量的差别都没在装饰或自然的背景受苦。我们的结果不提供装饰背景为异国情调的植物种类从herbivory负担得起另外的版本的任何证据。

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