简介:ObjectiveTwoimportantgeologicalissueshavelongbeencontroversialintheXing–MengareaofNorthChina.ThefirstconcernsthefinalclosureofPaleo-AsianOceaninXing–Mengarea,andtheotherconcernsthefoldingandliftingoftheXing-MengTrough.ThefocusofthsesissuesistheLatePermiansedimentaryenvironment,whichis
简介:Hamstringstraininjuryisoneofmostprevalentnoncontactinjuriesinsportsthatinvolvehigh-speedrunning,suchassprinting,soccer,andrugby.~1Inordertooptimizepreventionstrategiesandinjuryrehabilitation,studieshavebeenconductedtounderstandhamstringfunctionduringsprinting.~(2–4)However,differenceshavelongexistedintheliteratureastothecauseofhamstringstraininjuries.Oneofthemostcontroversial
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简介:Theyear2014wasatippingpointfortheBarackObamaAdministration—thatwastheyearwhenitstrovetoforgealegacyoftheObamaerabutcameupagainstchallengesarisingfrommajorchangesthatweretakingplaceinternationallyanddomestically.TheAdministrationwasthenfocusedonmaintainingafragilebalancebetweencreatingthislegacyandrespondingtothesechallenges.Obamastucktohisfundamentalprincipleswhendealingwithoverseasaffairs,buthealsocameupwithnewresponses.Thedynamicbalancestruckbetweenthesetwoformedthebasisoftheglobalstrategyofthelate-termObamaAdministration.TheAdministration'sfocusatthistimehighlightsthedilemmaitfacedinforgingalegacy.Further,theforeignpolicyofObamaandTrumpareactuallynotsodifferent;theybothsupportedsomedegreeofisolationismwithafocusondomesticissues.
简介:在在中间之间的过渡时期并且晚三叠纪,印度支那造山运动在华南引起了二构造事件:(1)形成并且沿着华南板的北边缘Qinling-Dabieorogenic带高举,由于它有北方中国板的碰撞;并且2)在华南板的东南的部分的1300-km-wideintra大陆人orogen的发展,它导致了低岬戳褶层地区的一个向西北的运动。这些构造事件结果Yangtze站台的intheending,并且是从Eidacaran的一个稳定的paleogeographic因素到中间的目的三叠纪。这个平台被浅水的碳酸盐的普遍发展描绘。在Yangtze站台的结束以后,上面的Yangtze低岬盆(或四川低岬盆)被形成在期间晚三叠纪并且成为了由Xujiahe形成的相关阶层构成的河的存款的一个累积地点。在西方的四川省,Xujiahe形成躺形成浅水的碳酸盐Xiaotangzi形成siliciclastic岩石摇的Maantang(从架页岩到沿岸的外形)。sequence-stratigraphic框架上面在上面的Yangtze低岬盆三叠纪显示特别冲积体系结构,由创作的序列描绘了(1)高住所的阶段的低精力的河的存款的继任包括煤缝接,并且(2)低住所的阶段的高精力的河的存款,包括混合河隧道沙岩。属于Xujiahe形成和它的相对阶层的这些河的存款的空间分发被渐渐的变瘦外面描绘,重叠,并且向东方和南方的拧外面。这个沉积记录因此在低岬盆的充满的继任以内表示河的存款的特别sequence-stratigraphic继任。sequence-stratigraphic框架为上面在上面的Yangtze区域三叠纪提供Yangtze站台和上面的Yangtze低岬盆的形成的结束的一个记录。
简介:TakingtheHuaihetotheNvshanhusegmentoftheTanlu(Tancheng-Lujiang)faultzoneasthemainresearchtargettoexplorewhethertherehasbeennewactivitysincethelateQuaternary,andbasedontheinterpretationofremotesensingimagesandrepeatedsurfaceinvestigations,weexcavatedtrenchesatthesectionswherethetectoniclandformissignificant,identifiedandrecordedthedeformationpatternsofthefaultandanalyzedtheactivitybehavior.Samplesofnewactivityanddeformationwerecollectedandorientedslicesweregroundbasedonthesamples'originalstatetomakethemicrostructuralanalysisanddemonstration.Alloftheaboveresearchshowsveryclearlineartectonicgeomorphologyalongthefault,threetrenchesacrossthefaultzoneallrevealednewdeformationtracessincelateQuaternary.ThelateststratumdislocatedbythefaultisthelateQuaternaryandHolocene.Themainslipmodeisstickslip,asrepresentedtypicallybyfaultscarps,wedgeaccumulation,thefaultsandthefilledcracksandsoon.Ingeneral,itshowsthecharacteristicsofbrittlehigh-speeddeformationandbelongstotheprehistoricearthquakeruins.Theaboveunderstandingwasconfirmedpartiallybymicroscopicanalysis.Inaddition,thesimilaritiesanddifferencesandthepossiblereasonsforthecharacteristicsofthelatestactivitiesoftheTancheng-LujiangfaultzoneinthenorthandsouthoftheHuaiheRiverregionsarealsodiscussedinthispaper.
简介:Cerebralischemianotonlycausespathologicalchangesintheischemicareasbutalsoinducesaseriesofsecondarychangesinmoredistalbrainregions(suchasthecontralateralcerebralhemisphere).Theimpactofsupratentoriallesions,whicharethemostcommontypeoflesion,onthecontralateralcerebellumhasbeenstudiedinpatientsbypositronemissiontomography,singlephotonemissioncomputedtomography,magneticresonanceimaginganddiffusiontensorimaging.Inthepresentstudy,weinvestigatedmetabolitechangesinthecontralateralcerebralhemisphereaftersupratentorialunilateralischemiausingnuclearmagneticresonancespectroscopy-basedmetabonomics.Thepermanentmiddlecerebralarteryocclusionmodelofischemicstrokewasestablishedinrats.Ratswererandomlydividedintothemiddlecerebralarteryocclusion1-,3-,9-and24-hourgroupsandtheshamgroup.~1Hnuclearmagneticresonancespectroscopywasusedtodetectmetabolitesintheleftandrightcerebralhemispheres.Comparedwiththeshamgroup,theconcentrationsoflactate,alanine,γ-aminobutyricacid,cholineandglycineintheischemiccerebralhemispherewereincreasedintheacutestage,whiletheconcentrationsofN-acetylaspartate,creatinine,glutamateandaspartateweredecreased.Thisdemonstratesthatthereisanupregulationofanaerobicglycolysis(shownbytheincreaseinlactate),aperturbationofcholinemetabolism(suggestedbytheincreaseincholine),neuronalcelldamage(shownbythedecreaseinN-acetylaspartate)andneurotransmitterimbalance(evidencedbytheincreaseinγ-aminobutyricacidandglycineandbythedecreaseinglutamateandaspartate)intheacutestageofcerebralischemia.Inthecontralateralhemisphere,theconcentrationsoflactate,alanine,glycine,cholineandaspartatewereincreased,whiletheconcentrationsofγ-aminobutyricacid,glutamateandcreatinineweredecreased.Thissuggeststhatthereisadifferenceinthemetabolitechangesinducedbyischemicinjuryinthecontral
简介:WeiheGraben是在中国而且一个重要活跃地震地区的重要新生代差错盆不仅。Huashan山麓差错是WeiheGraben的东南方面上的一个重要活跃差错并且自从新生代,是高度活跃的。1556的著名大Huaxian县地震发生在Huashan山麓差错上。这地震,夺走约830000个人的生活,是知道发生在一个高角度的正常差错上的很少大地震之一。Huashan山麓差错是能被用来学习构造活动和联系危险的一个典型活跃正常差错。在这研究,类型和特征,沿着这个差错的近来第四级的变丑从地质的调查,历史的研究和全面分析被讨论。根据它的特征和活动,差错能被划分成三节,也就是东方、中央、西方。东方、西方的节显示正常滑倒。强烈变丑沿着二节发生了在期间第四级;然而,没有变丑发生在Holocene期间。中央节经历了重要高角度的正常差错活动在期间第四级,包括Holocene。由差错的Holocene冲积扇子和黄土切割沿着Huashan山麓差错地区的中央节在Huashan山的许多溪流山谷的嘴被识别了。Huashan山麓差错的三节,中央节是最活跃并且是很活跃的在期间晚第四级。正常蘸滑倒的率是1.67-2.71牯慧楮?慷汬摥洠捩潲潦獳汩?潣獮獩楴杮漠?楦慬敭瑮畯?祣湡扯捡整楲?愠杬污挠敯潮楢?湡?捡湡桴浯牯桰捩愠牣瑩牡档栠癡?敢湥搠'覜蠝U?牦浯渠湯'蹜T敲畯?汣祡瑳湯獥愠摮洠摵瑳湯獥漠?桴?敐灰牥?畯瑮楡獮匠慨敬?牯慭楴湯????氠'椰嫇?瑩?瑳慲潴祴数愠敲?湩琠敨倠灥数?潍湵慴湩?眠楨档愠敲瀠牡?景琠敨?汯?牃獯?潍湵慴湩?湩倠汯湡吗?
简介:在Balochistan的Kazhaba村庄附近的玄武岩的枕头熔岩在Bagh建筑群的构造裂片被发现:在穆斯林Baghophiolite建筑群下面的混合物地区。这些vol-canics被碱暗岩主要代表。岩相学和化学建议这些暴烈的岩石温和地属于到强烈碱,intra板暴烈的岩石系列。他们的低Mg#和低Cr,Ni和公司内容建议这些volcanics的父母岩浆直接没从部分融化的披风来源被导出,但是结果在一个上面的水平岩浆房间的分别,在线路到爆发。他们的LILE和HFSE,有显著积极Nb异例的充实的初发的使披风正常化的模式进一步证实他们的在内板geochemical签名并且与充实的披风来源一致。他们的高度充实的LREE模式和高度(La/Yb)N并且(Ce/Yb)N比率建议部分融化的garnet-lherzolite父母岩浆来源。Zr对Zr/Y研究建议这些volcanics从大约15%部分融化的充实的披风来源被导出。这些迟了的白垩纪intra板volcanics可以代表重聚热点的披风羽毛活动,这被建议,并且在它上在印度板的经过以前在Ceno-Tethys海洋地板的经过期间被爆发。
简介:WehavecarefullyreadthedescriptionoftheproposedmechanismsofhamstringmusclestraininjurybyLiuetal.1andnoticedthattheysuggestthathamstringstraininjuriesmaybeassociatedwithextensivemuscleforceandoccurduringtheearlystancephaseofsprintingwhenthehamstringsarethoughttoworkconcentrically.Wedidnotfindanyevidenceinourextensiveliteraturereviewtosupportthisparticular
简介:在Balochistan的Wulgai村庄附近的玄武岩的暴烈的集团企业发生在是m的Bagh建筑群的专一的沉积岩石单位????吗??
简介:Inthispaper,accordingtotheresultsofthesatelliteimageryinterpretationandfieldinvestigation,westudytheactivefeaturesandthelatestactivetimesoftheChuxiong-Nanhuafault,theQuaternarybasinsformationmechanism,andtherelationshipbetweenthefaultandthe1680ChuxiongMs6%earthquake.SeveralQuaternaryprofilesatLvhe,NanhuarevealthatthefaulthasoffsetthelatePleistocenedepositsoftheT2andT3terracesofLongchuanriver,indicatingthatthefaultwasobviouslyactiveinlateQuaternary,TheChuxiong-NanhuafaulthasbeendominatedbydextralstrikeslipmotioninthelateQuaternary,withanaveragerateof1.6-2.Omm/a.SeveralpullapartQuaternarybasinsofChuxiong,Nanhua,andZiwuetc.havedevelopedalongthefault.The1680ChuxiongMs6%earthquakeandseveralmoderateearthquakeshaveoccurrednearthefault.TheChuxiong-Nanhuafaultaretheseismogenicstructureofthoseearthquakes,thelatestfaultmovementwasinthelate-Pleistocene,andeventheHolocene.Inlargearea,theChuxiong-NanhuafaultandtheeasternQujiangfaultandtheShipingfaultcomposedasetofNW-trendingobliqueorientationactivefaults,andthemotioncharacteristicsareallmainlydextralstrikeslip.Themotioncharacteristics,liketheredriverfaultoftheSichuan-YunnanRhombicBlocksouthwesternboundary,areconcernedwiththeescapingmovementoftheSichuan-YunnanRhombicBlock.