简介：XinhuareportedonDecember6thatChinawouldsetupayear-on-yeargrowinginvestmentsystemtofacilitatethedevelopmentofscienceandtechnologyonagriculture.ThedevelopmentofscienceandtechnologyiskeytoeasethepressureonChina'sagriculture,especiallyongrain

简介：为合适的染色体分离，所有kinetochores必须完成双极的微导管(MT)附件并且以前随后在锭子赤道排列后期发作。减指导结束的马达dynein/dynactin的TheMT在职业人员中期绑kinetochores并且长在染色体大会离子被含有。不幸地，在达因在的激活通常扰乱锭子组织，因此妨碍它的kinetochore角色的评估。这里我们明确地由ZW10的调停RNAi的弄空的eliminatedkinetochoredynein/dynactin，为马达的kinetochorelocalization的蛋白质必需品。微速摄影的显微镜学显示了显著地减少的大会离子效率，尽管congressing染色体作为在控制房间显示了类似的速度。而且，房间经常没能完成完整的染色体排列，尽管有他们的正常锭子。Confocalmicrocopy表明没有对齐的kinetochores是单音的面向或独立、主要躺的外面锭子，建议一个困难从相反的杆捕获MT。Kinetochoresonmonoastral锭子远被驱散离开杆并且展出了仅仅温和的摆动。而且，使达因失去活性在由另外的工具产生类似的显型。因此，kinetochoredynein在单音的面向的kinetochores上生产拉力量的一个杆病房，它可以由象完整的染色体排列一样便于他们的合适的微导管俘获到promotecongression贡献有效双极的附件。

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简介：MAY28,2009--GEHealthcare(ChalfontSt.Giles,UK),agloballeaderinhealthcaresolutionsandLightLabImagingInc.(Westford,MA),amarketleaderinopticalimaging,haveannouncedacollaborationthatenablesimprovedworkflowbetweenGEHealthcare'sInnovacardiovascularX-raysystemandLightLab'sC7-XRopticalcoherencetomography(OCT)system.BoththeC7-XRandInnovasystems

简介：ThisresearchinvestigatesChineseEnglishasaforeignlanguage(EFL)learners’oralEnglishcommunicationstrategies(CSs)andoralEnglishlearningstrategieswhenstudyinginanEnglishspeakingcontext.Forthispurpose,theresearcherconductedsemi-structuredinterviewswithfourChineseEFLlearnerswhoarestudyingintheUKwithdifferentEnglishproficiencies,analysedtheirstrategiesoforalEnglishlearningandcommunication,andcomparedchangesinstrategiesduringoneyearofstudyingabroad.Itshowedthat,whenconfrontedwithdifficultiesinoralEnglishlearning,participantsusuallyemployedaffectivestrategiestoadapttothenewlearningenvironment.Andlearnersfromdifferentlevelshavedifferentperformancesinmeta-cognitivelearningstrategiesuse.Inaddition,theEnglishspeakingcontextmadesomedifferencestolearners’learning.WhenitcomestoCSs,ontheonehand,strategies,suchasnegotiationformeaning,andsoon,wereshownasbeingprimarilyusedbyparticipants,eventhoughparticipantsfromdifferentlevelsmighthavesomedifferencestosomeextent.Ontheotherhand,strategieslikelessactivelistener,andsoon,wererelativelylessemployedbyparticipants.TheseresultswouldprobablyhelplearnersandteachersunderstandoralEnglishlearningandteachinginnativecontextsbetter.

简介：在维持平衡外部有免疫力的system.Recent的一个重要角色学习的CD4+CD25+规章的T(TR)房间玩证明了TR房间可以也在压制反肿瘤免疫者反应起一个关键作用。以便调查TR极化上的肿瘤免疫者微型环境和它的影响，糟糕产生免疫性的肿瘤房间线D5(C57BL/6，H-2b)，产生免疫性的肿瘤房间线FBL3(C57BL/6，H-2b)并且H22BALB/c，H-2d)被用来建立syngeneic/allogeneic，糟糕产生免疫性/产生免疫性的混合淋巴细胞肿瘤房间文化(MLTC)。我们的结果表明在告知的splenocytes与D5肿瘤房间刺激了的syngeneic的MLTC的CD4+CD25+T房间的比例与H22房间比那高(0.43%对0.044%，并且类似的结果在与.Thesplenocytes从更高表明的房间比从D5肿瘤的allogeneicMLTC，房间，和splenocytes刺激了机智的CD4+CD25+房间分配的D5肿瘤的syngeneicMLTC与上层清液刺激了的D5肿瘤房间(0.39%对0.04%)刺激的allogeneicsplenocytes出现了TGF-1和Th2面向的cytokines(IL-4和IL-10)在糟糕产生免疫性的肿瘤房间的syngeneicMLTC的上层清液被统治。我们的结果为学习位于肿瘤免疫者监视下面的机制以及为肿瘤免疫疗法提供了有用信息。