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26 个结果
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  • 简介:分阶段执行多样的点缀是成像技术的一种新奇类型并且能被用来从未知阶段错误克服图象降级,例如大气的骚乱。在Zernike多项式上扩展的波前阶段从一双图象被估计(在里面焦点并且从焦点飞机)。在这份报纸,PDS的原则被分析,并且基因算法被用作反复的算法模仿一些特征,例如Zernike多项式鈥?模式的影响,阶段评价上的骚乱的振幅。因此,为图象的恢复的一个新方法被探索。CLC数字TN911.74

  • 标签: 斑点 相位变化 修正 光学信号处理
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  • 简介:TheFirstBeijingInternationalFilmFestivalwillpresenChina’sEthnicFilmsFestival,includingaseriesofactivitiessuchasBeijingEthnicFilmSalon,China’sEthnicMinorityLanguagesFilmFestival,China’sEthnicFilmHigh-EndForumChina’sEthnicFilmRetrospectiveShowandothers.

  • 标签: 电影节 民族 中国 多元文化 可视化 北京
  • 简介:AbstractGenomoviridae is a virus family belonging to circular replication associated protein encoding ssDNA (CRESS-DNA) viruses, which have diverse genomic architecture and are widely distributed among different ecosystems. In this study, we characterized 39 novel genomovirus genomes including 3 from wild egrets, 9 from wild cranes, as well as 27 from wild finches in three different types of cloacal swabs of wild bird sampled in the station of Xinqing bird ringing, Maoershan Nature Reserve in Heilongjiang Province, Changbai Mountain in Jilin Province, and Hangzhou Wetland Park in Zhejiang Province, China. Here, using a Rep sequence phylogeny-based analysis, we divided the 39 genomoviruses into 8 genera within the family Genomoviridae, including Gemycircularvirus (n =20), Gemykibivirus (n =3), Gemygorvirus (n =2), Gemyvongvirus (n =2), Gemykolovirus (n =3), Gemykrogvirus (n =6), Gemytondvirus (n=1), Gemyduguivirus (n=1) and one unclassified genomovirus. The 39 genomovirus genomes belong to 36 species (27 of which are new) based on the currently accepted genomovirus pairwise nucleotide sequence identity species demarcation threshold of 78%. Overall, the research enriches our knowledge of CRESS-DNA viral diversity in China and emphasizes the prevalence of genomoviruses in nature.

  • 标签: CRESS-DNA virus Genomovirus Egret Crane Finch Complete genomes
  • 简介:Wepresentasimulationofthemagnetizationcurves,energy,probability,andtorquelandscapesofuniaxialsystemswithuptofiveanisotropyconstants.ThetotalenergyusedinthesimulationisthesumoftheanisotropyandZeemanenergies.Theexchangeinteractionisnotconsideredinthepresentworkinwhichwetreatsingle-domain-particlesystemswithinaclassicalmechanics-basedmodel.Diversefeaturesofthecalculatedmagnetizationcurvesarehighlightedforthestudiedsystems.Thesediversefeaturesarestronglydependentonthesignandmagnitudeofthesimulationparameters.Themodelisversatileenoughtohandlebothhypotheticalandrealmaterialsystems,e.g.HoFe11TiandY2Co17.

  • 标签: 磁化曲线 模拟 单轴晶体 特征 多样性 各向异性常数
  • 简介:Wolbachia是感染大量节肢动物和丝虫的线虫的细胞内部的共生者。蚜虫从事与他们的endosymbionts的多样、复杂的关系。Wolbachia的四超群(A,B,M和N)以前在蚜虫和超群M被检测,N仅仅在蚜虫被发现。在这研究,我们在中国在蚜虫的自然人口检测了并且描述Wolbachia感染。三超群(A,B和M)在检验蚜虫种类被发现。超群M是优势的,而超群A和B仅仅在某些种类被检测。超群N没在这研究被发现。也就是,有在蚜虫的Wolbachia的四个感染模式有超群M的感染独自一个,有超群A和M,有超群B和M的合作感染,和有超群A,B和M的合作感染的合作感染。仅仅有超群M的感染的模式是通用的并且在所有评估亚科被发现。仅仅二个亚科,Aphidinae和Lachninae,表明了介绍所有四个感染模式。三个模式在Calaphidinae被观察(M,A&M,B&M)并且Eriosomatinae(M,B&M,A&B&M)。二个模式在Anoeciinae被观察(M,A&M)并且Greenideinae(M,B&M),并且一仅仅模式(M)在Aphidoidea的留下的家庭或亚科被观察。这些结果显示在中国蚜虫的Wolbachia感染是普遍的。种系发生的分析建议超群M在中国在蚜虫的所有主人种类之中很快并且最近散布了的那Wolbachia。为这传播和它的机制的原因在他们的蚜虫主人上与Wolbachia的可能的效果一起被讨论。

  • 标签: 沃尔巴克氏体 合并感染 蚜虫 中国 多样化 WOLBACHIA
  • 简介:Wnt-1induciblesignalingpathway-1(WISP-1),alsoknownasCCN-4,belongstotheconnectivetissuegrowthfactor(CTGF)family.WISP-1isprimarilyexpressedinembryonicstemcellsandisinvolvedinadultorgandevelopment.WISP-1participatesinmanycellularprocesses,includingproliferation,differentiation,apoptosisandadhesion.Inaddition,WISP-1playsanimportantroleindiversepathophysiologicalprocesses,suchasembryonicdevelopment,inflammation,injuryrepairsandcancers.RecentstudiesshowedthatWISP-1washighlycorrelatedwithtumorprogressionandmalignanttransformation,whereasitplayedanoncogenicroleincolorectalcancer,cholangiocarcinoma,hepatocellularcarcinomaandbreastcancer.However,interestingly,WISP-1exertsatumorsuppressingroleinlungandprostatecancers.WISP-1promotescellproliferation,adhesion,motility,invasion,metastasisandepithelial-to-mesenchymaltransitionviaparticularsignalingpathways.Inthisreview,wediscussedthestructure,expressionprofile,functions,clinicalsignificanceandpotentialmechanismsofWISP-1incancerandnon-neoplasticdiseases.

  • 标签: 病理过程 肿瘤抑制作用 结缔组织生长因子 信号转导通路 细胞增殖 恶性转化
  • 简介:维生素D3起来调整的蛋白质(VDUP1)1是涉及维持细胞的动态平衡的多功能的蛋白质。VDUP1被许多压力导致。相反地,VDUP1经常在各种各样的肿瘤纸巾和房间线被减少。VDUP1的在表示上通过房间周期拘捕禁止房间增长。VDUP1与thioredoxin(Trx)交往并且否定地调整表示和涉及氧化还原作用规定的Trx的抗氧化剂功能。VDUP1-/-鼠标比野类型的鼠标更产生carcinogenesis并且在包括自然漂亮房间的开发和函数建立免疫系统是有缺点的。而且,VDUP1-/-mice表演损害了Kreb调停周期的丰满的酸利用。在这评论,我们在多样的细胞的回答,特别地与增长的它的关系,apoptosis,区别,和象癌症那样的疾病和压力相关的疾病讨论了VDUP1的多功能的角色。

  • 标签: 硫氧还蛋白 细胞增生 免疫细胞 细胞分化
  • 简介:原子核还是复杂目标显示显著简洁和常规模式。这些和他们的起源的学习长是原子结构研究的成双的支柱之一。我们将从这个观点讨论原子原子核的行为。一个关键元素将是从不同观点看一样的数据并且互连这些观点的优点。

  • 标签: 原子核 相互作用 模型 多重 对称 复杂对象
  • 简介:Background:Manytreespeciesintropicalforestshavedistributionstrackinglocalridge-slope-valleytopography.Previousworkina50-haplotinKorupNationalPark,Cameroon,demonstratedthat272species,or63%ofthosetested,weresignificantlyassociatedwithtopography.Methods:Weusedtwocensusesof329,000trees≥1cmdbhtoexaminedemographicvariationatthissitethatwouldaccountforthoseobservedhabitatpreferences.Wetestedtwopredictions.First,withinagiventopographichabitat,speciesspecializingonthathabitat(‘residents')shouldoutperformspeciesthatarespecialistsofotherhabitats(‘foreigners').Second,acrossdifferenttopographichabitats,speciesshouldperformbestinthehabitatonwhichtheyspecialize(‘home')comparedtootherhabitats(‘away').Species'performancewasestimatedusinggrowthandmortalityrates.Results:Inhierarchicalmodelswithspeciesidentityasarandomeffect,wefoundnoevidenceofademographicadvantagetoresidentspecies.Indeed,growthratesweremostoftenhigherforforeignspecies.Similarly,comparisonsofspeciesontheirhomevs.awayhabitatsrevealednosignofaperformanceadvantageonthehomehabitat.Conclusions:Werejectthehypothesisthatspeciesdistributionsalongaridge-valleycatenaatKoruparecausedbyspeciesdifferencesintrees≥1cmdbh.Sincetheremustbeademographiccauseforhabitatspecialization,weofferthreealternatives.First,thedemographicadvantagespecialistshaveathomeoccursatthereproductiveorseedlingstage,insizessmallerthanwecensusintheforestplot.Second,speciesmayhavehigherperformanceontheirpreferredhabitatwhendensityislow,butwhenpopulationbuildsup,therearenegativedensity-dependentfeedbacksthatreduceperformance.Third,demographicfilteringmaybeproducedbyextremeenvironmentalconditionsthatwedidnotobserveduringthecensusinterval.

  • 标签: 人口变化 热带森林 栖息地 喀麦隆 多树种 多元化
  • 简介:用树脂分的在结构上多样的bispropargyl醚,quinol,4,4-dihydroxy联本基,bisphenol--A,4,4-dihydroxydiphenyl酉同类,4,4-dihydroxydiphenylsulphone,trimethylindanebisphenol和tetramethylspirobiindanebisphenol被使用阶段转移准备催化剂。综合材料独立在鼹鼠比率(0.5:0.5)与4,4-bismaleimidodiphenyl甲烷(BMIM)被混合。材料热地被治好,结构的描述和这些cross-linked材料的热性质用Fourier变换被调查红外线(FTIR)分光光度计和thermogravimetric分析器(TGA)。在不同材料之中,调查polyMRPE,polyMBPEBPA和polyMSPE显示出300諟?牦的更高的发作降级温度吗?

  • 标签: 热降解动力学 结构表征 双马来酰亚胺 傅里叶变换红外光谱分析 共混物 TG-FTIR
  • 简介:Environmentalpollutionanddecliningresourcesoffossilfuelsinrecentyears,haveincreaseddemandforbetterfueleconomyandlesspollutionforgroundtransportation.Amongthealternativesolutionsprovidedbyresearchersinrecentdecades,hybridelectricvehiclesconsistedofaninternalcombustionengineandanelectricmotorhavebeenconsideredasapromisingsolutionintheshort-term.Inthepresentstudy,fueleconomycharacteristicsofaparallelhybridelectricvehicleareinvestigatedbyusing...

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  • 简介:前列腺癌症是全球癌症相关的死亡的一个领先的原因,但是试图改善诊断并且开发新奇治疗被重要耐心的异质惊讶。在最近的年里,到几百个前列腺瘤的下一代的定序的应用程序定义新奇分子的子类型并且描绘了位于疾病开始和前进下面的广泛的genomic错误。在诊所观察的异质是由与复杂性流行的一处分子的风景的underpinned,现在是清楚的,在genomic重新整理和稀罕变化联合放大transcriptomic差异的地方。这评论把我们前列腺癌症‘的当前的理解;omic的包括拷贝数字变化的哨兵角色,oncogenic熔化基因,chromothripsis的潜在的影响,和在定义联系变化的子类型的突破的成长光谱。增加的证据建议损害经常在特定的细胞的功能和发信号的小径上集成的那genomic,还周期性的基因错误显得稀罕。因此,我们继续定义单个瘤染色体,是批评的,特别在他们的表示transcriptome的上下文。仅仅通过到瘤可变性罐头的瘤的改进描述,我们前进到精确治疗和个性化的肿瘤学的年龄。

  • 标签: 前列腺癌 异质性 分子 测序 前列腺肿瘤 基因组
  • 简介:Olderadultfallsareasignificantpublichealthproblem,butonethatisamenabletopreventiveinterventions.1,2Despitetheprogressmadeinidentifyingriskfactors,developingefficacioushealth-relatedinterventions,andpromotingevidencebasedprogramsinthecommunity,muchworkremainsbeforethesestrategiesarebroadlyavailableandeffectivelyusedtoreducefall-relatedinjuries.3AsNewtonandScottFindlay4havepointedout,thetranslationofbasicscientificknowledgeintoclinicalstudies,andthetransformationofclinicalstudiesintoimprovementsinhealthservicesandpublichealthpractices,remainmajorobstaclestowidespreadadoption.

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  • 简介:充满沙的骚动杯被用来在东南中国的潮湿的画热带学习降雨和throughfall的腐蚀力量。骚动杯大小在田野条件和森林植被下面产出精确、可再现的结果。骚动杯暴露于不同年龄的特定的森林看台并且到选择种类(Schimasuperba,Castanopsiseyrei,Daphniphyllumoldhamii,Lithocarpusglaber)在Gutianshan()国家自然保护区(GNNR)。在throughfall的腐蚀力量掉与田野相比高2.59倍的森林植被表演中的大小的结果。这在森林生态系统加重灌木,植物和崽层的重要性保护土壤免于侵蚀。从叶子和分支的联合落下(滴下)尽最大努力为这著名获得负责。而且,在在调查的树种类之间的sandloss的差别(脱落,常绿树)表明侵蚀潜力和throughfall的空间异质是种类特定的。这强调就土壤侵蚀的预防而言为造林工程选择特定的种类的重要性。

  • 标签: 森林生态系统 穿透力 侵蚀力 飞溅 多样化 物种特异性