简介：在这份报纸，square-integrableR3和R7上的珍视Octonion的功能空格被分解成奥克托尼恩·哈迪的直接的和并且结合强壮的空格，并且上面的一半上的square-integrableOctonion函数空格空格R+4并且R+8直接被分解成无穷第一个部件只是OctonionBergman空格的在subspaces的和。R3和R7上的奥克托尼恩·哈迪空格被描绘。

简介：AbstractPerimesencephalic subarachnoid hemorrhage (P-SAH) is a benign subset of subarachnoid hemorrhage. Only two cases of P-SAH during pregnancy have been reported in the literature. We describe a case of P-SAH detected at 29 weeks’ gestation, arose with severe bilateral frontal headache, neck rigidity, and vomiting. A diagnosis of P-SAH was confirmed on magnetic resonance angiography with no evidence of vascular malformation or bleeding sources and conservatively treated. Hemorrhage, vasospasm, and cerebellar edema observed on initial magnetic resonance angiography resolved after two months. The clinical course of P-SAH during pregnancy appears to be favorable. Our case shows for the first time in literature that magnetic resonance angiography is a valid diagnostic test for P-SAH during pregnancy that circumvents radiological risk associated with conventional imaging.

简介：Searchoutallthelistedwordsinthegrid.

简介：Thetheoreticalframeworkofvisualsimulationinvirtualrealityisdiscussed.Thenewconceptofvisualimagespaceissupposed.Onthebasisofvisualimagespace,invisualperceptivesense,VRisconsideredasaspatialsimulation.Theobjectiveofthespatialsimulationistotransformphysicalspacetovisualimagespace.Last,theprototypesystem,surveying&mappingvirtualReality(SMVR),isdeveloped,andthespacesimulationaboveisrealized.ByuseofSMVR,thereal3Drepresentation,3Dvisualanalysis,virtualplananddesignscanbeimplemented.

简介：AbstractBackground:Dense exudate during the calcification of cerebral cysticercosis in basal subarachnoid space was easy to be misdiagnosed as subarachnoid hemorrhage (SAH); clinical evaluation and MRI can help differentiate SAH from pseudo-SAH.Case presentation:A case of ventricular expansion accompanied by high-density shadows in cisterna circinata cerebri was taken to the hospital for treatment due to sudden faint. This patient was diagnosed as subarachnoid hemorrhage according to computed tomography (CT) in another hospital. We believe that the high density in cisterna circinata cerebri was misdiagnosed as subarachnoid hemorrhage (SAH) 1 year ago. The main etiology of SAH is aneurysm; non-aneurysmal SAH associated with cerebral cysticercosis is extremely rare. Only 5 patients have been reported.Conclusion:This case indicated that although the specificity of CT for SAH is very high, the physicians should be aware of rare false positive findings, called pseudo-SAH.

简介：10月，“神舟十一号”飞船载着两名航天员进入“天宫二号”空间实验室．开启了我国航天史上最长的太空驻留。

简介：Manypeoplelovetotravelonvacation.Today（1.越来越多的）travelersinChinalikespendingtimewalkinginthemountains,orswimminginthewater,orvisiting（2.名胜古迹）.（3.他们中一些人）wanttogosomewherespecial.Theywouldliketogosomeplaceanyonehasneverbeenbefore.

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简介：TaoJianzhong,astudentofscientist'QianXuesen,isanexpertonaerospace(航空航天).Hegiveslessonsatourschool.Look,everyoneislisteningattentively(专注地)!

简介：这里发生什么事了？圈出每句话中的动词过去。你就知道啦!

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简介：TheWeylcurvatureofaFinslermetricisinvestigated.ThiscurvatureconstructedfromRiemannaincurvature.ItisanimportantprojectiveinvariantofFinslermetrics.TheauthorgivesthenecessaryconditionsonWeylcurvatureforaFinslermetrictobeRandersmetricandpresentsexamplesofRandersmetricswithnon-scalarcurvature.AglobalrigiditytheoremforcompactFinslermanifoldssatisfyingsuchconditionsisproved.ItisshowedthatforsuchaFinslermanifold,ifRicciscalarisnegative,thenFinslermetricisofRanderstype.

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简介：Sincetheearlydaysofmannedspaceflight,hazardouseffectsofthespaceenvironmentonlivingorganismshavebeendisputed.WiththecontinuousmanningoftheInternationalSpaceStation,theplannedChi-nesespacestation,andrenewedinterestinreturningtotheMoonandsendingmannedflightstoMars,identifyingandaddressingthepotentialoutcomesoflong-termspaceexposuresiscriticallyimportant.

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