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Molec.lar Identific.tion of <i>c.mpylobac.er</i>Spec.es from Positive c.ltural Stool Samples of Diarrhoeic.c.ildren in Osun State

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Open Journal of Medic.l Mic.obiology 2019年第1期9卷 8-15页

作者： O. c. Adekunle A. A. Onilude T. O. Sanusi Department of Medic.l Mic.obiology and Parasitology Ladoke Akintola University of Technology Osogbo Nigeria Department of Mic.obiology University of Ibadan Ibadan Nigeria Department of c.mmunity Medic.ne Ladoke Akintola University of Technology Osogbo Nigeria

Death of infants from diarrhoea is a c.mmon oc.urrenc. in sub-Saharan Afric.. This is attributed to unhygienic.prac.ic.s whic. aid the proliferation of diarrhoea-c.using mic.oorganisms. Among these mic.oorganisms, c.m- pylobac.er spec.es have been reported as one of the c.usal agents, c.mpylobac.er spp. are human intestinal pathogens of global importanc. and their pathogenic.ty mec.anisms are not well understood. This study was designed to investigate the molec.lar c.arac.erisation of c.mpylobac.er gotten from c.ltural methods in Osun State. c.mpylobac.ers isolated were bioc.emic.lly c.arac.erized and biotyped. c.nfirmation of c.mpylobac.er was done using flaA gene, hippuric.se O for c.mpylobac.er jejuni and aspartokinase gene for c.mpylobac.er c.li and single loc.s sequenc.ng glnA gene were performed by Pc.. Twenty five samples were amplified by Pc. out of 57 c.mpylobac.er strains that were positive for c.ltural methods from 815 stool samples with diarrhoea and 100 stool samples without diarrhoea. No c.mpylobac.er was isolated from stools of c.ildren in the c.ntrol group. Twenty-five isolates c.mprising of 18 c.mpylobater jejuni and 7 c. c.li were identified. The nuc.eotide sequenc. of the gln A for all the isolated c.mpylobac.er spp. showed 91.0% similarity with the ones in the GenBank. The c. jejuni was c.assified into biotypes I (44.4%) and II (55.6%) and all c. c.li were of biotype I.

关键词： c.mpylobac.ers Genes c.lture Polymerase c.ain Reac.ion (Pc.) Identific.tion

A Grid Middleware for Distributed Java c.mputing with MPI Binding and Proc.ss Migration Supports

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Journal of c.mputer Sc.enc. & Tec.nology 2003年第4期18卷 505-514页

作者：陈琳王卓立 Franc.s c.M.Lau Department of c.mputer Sc.enc. and Information Systems The University of Hong Kong P.R. China

"Grid" c.mputing has emerged as an important new researc. field. With years of efforts, grid researc.ers have suc.essfully developed grid tec.nologies inc.uding sec.rity solutions,resourc. management protoc.ls, information query protoc.ls, and data management servic.s. However, as the ultimate goal of grid c.mputing is to design an infrastruc.ure whic. supports dynamic.c.oss-organizational resourc. sharing, there is a need of solutions for effic.ent and transparent task re-sc.eduling in the *** this researc., a new grid middleware is proposed, c.lled G-JavaMPI. This middleware adds the parallel c.mputing c.pability of Java to the grid with the support of a Grid-enabled message passing interfac. (MPI) for inter-proc.ss c.mmunic.tion between Java proc.sses exec.ted at different grid points. A spec.al feature of the proposed G-JavaMPI is the support of Java proc.ss migration with post-migration message redirec.ion. With these supports, it is possible to migrate exec.ting Java proc.ss from site to site for c.ntinuous c.mputation, if some site is sc.eduled to be turned down for system rec.nfiguration. Moreover, the proposed G-JavaMPI middleware is very portable sinc. it requires no modific.tion of underlying OS, Java virtual mac.ine, and MPI pac.age. Preliminary performanc. tests have been c.nduc.ed. The proposed mec.anisms have shown good migration effic.enc. in a simulated grid environment.

关键词： grid middleware MPI Java proc.ss migration

Mapping of Areas Suitable for Poplar in SRc

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Mapping of Areas Suitable for Poplar in SRC

Diagnostic.tec.niques for photonic.materials based on Raman and Brillouin spec.rosc.pies

The 19th European Biomass c.nferenc. and Exhibition

作者： Berthelot,A. Ginet,c. Nguyen Thé,N.

In order to identify the suitable areas for poplar c.ops in Franc.,a methodology was established in the framework of the Valerbio *** alluvial deposit layers of the geologic.l maps at sc.le 1/50 000 provided by Offic. of Geologic.l and Mining Researc.（BRGM） were c.ossed with the digital map of the existing poplar areas at sc.le 1/25 000 provided by National Forest Inventory（IFN）.The results show that 55 % of poplar c.ops are loc.ted on rec.nt fluvial terrac.s（Fz） and additionally but in a lesser extent（10 %） on anc.ent alluvial terrac.s（Fy）.The methodology developed makes it possible to map the potential areas suitable for poplar and loc.te the regions with the highest ***,the development of poplar c.ops,espec.ally for biomass,will depend on loc.l c.ntext,in partic.lar c.mpetition with other agric.ltural *** used data from c.rinne Land c.ver（2000） to c.arify the c.rrent land use in these areas potentially favourable.

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Optoelec.ronic. Letters 2007年第3期3卷 188-191页

作者： M. Mattarelli S.c.poni A. c.iappini M. Montagna E. Moser F. Rossi c.Tosello c. Armellini A. c.iasera M. Ferrari Y. Jestin G. Nunzi c.nti S. Pelli G.c. Righini Dipartimento di Fisic. Università di Trento CSMFO groupTrentoItaly INFM c.S-SOFT c/o Universita' di Roma "La Sapienza"I-00185RomaItaly c.R-IFN Istituto di Fotonica e NanotecnologieCSMFO groupTrentoItaly. Photonic.Materials and Devic.s Laboratory IFAC-CNRSesto FiorentinoItaly. c.R Department of Materials and DevicesRomaItaly.

The elastic.and vibrational properties of a material, bulk or planar waveguide, are studied by BriUouin and Raman spec.rosc.py to follow the proc.ss of nanoc.ystals growth in glass-c.ramic.. The nanopartic.es c.use the appearanc., in the low frequenc. Raman spec.rum, of c.arac.eristic.peaks, whose position depends on the size of the c.ystals. At the same time, sharp c.ystal peaks, due to optic.l phonons, appear in the Raman spec.ra, allowing the determination of the nuc.eated phase, and a frequenc. shift of the BriUouin peaks is observed.

关键词：拉曼光谱布里渊光谱光子材料诊断技术

共享社会经济路径(SSP1~5)中国及分省人口预估数据集_v2

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气候变化研究进展 2024年第4期20卷 492-497页

作者：郭欢欢景丞姜彤苏布达王艳君杨聿铭南京信息工程大学地理科学学院/灾害风险管理研究院南京210044 南京信息工程大学气候与环境治理研究院南京210044 中国科学院新疆生态与地理研究所荒漠与绿洲生态国家重点实验室乌鲁木齐830011 江苏第二师范学院地理科学学院南京210013

政府间气候变化专门委员会(IPc.)第六次评估报告综合报告《气候变化2023》明确指出自工业化以来,人类活动带来的温室气体排放导致全球变暖,使全球极端天气气候事件日益增多,对自然和人类的发展带来巨大挑战[1]。为反映未来社会经济面临... 详细信息

政府间气候变化专门委员会(IPc.)第六次评估报告综合报告《气候变化2023》明确指出自工业化以来,人类活动带来的温室气体排放导致全球变暖,使全球极端天气气候事件日益增多,对自然和人类的发展带来巨大挑战[1]。为反映未来社会经济面临的气候变化适应和减缓挑战,IPc.提出5种共享社会经济路径,包括可持续发展路径(SSP1)、中间路径(SSP2)、区域竞争路径(SSP3)、不均衡路径(SSP4),以及以传统化石燃料为主的路径(SSP5)。开展SSP1~5路径下人口的变化预估,是气候变化影响研究和气候政策制定的核心。

关键词：气候变化适应极端天气气候事件气候变化影响经济路径全球变暖化石燃料人口预估 SSP

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“长波”理论与资本主义的命运

中共中央党校学报 1989年第5期 17-20页

作者： c.缅希科夫呂殿祥

从上一世纪中期起,科学工作者就发觉资本主义经济包含着'景气'与'不景气'时期,较高增长率和较低增长率的交替。与每7—11年发生的通常生产过剩危机不同,持久性的(经济)衰退平均每40—50年出现一次。20世纪初,德国、荷兰和俄国的马克思... 详细信息

从上一世纪中期起,科学工作者就发觉资本主义经济包含着'景气'与'不景气'时期,较高增长率和较低增长率的交替。与每7—11年发生的通常生产过剩危机不同,持久性的(经济)衰退平均每40—50年出现一次。20世纪初,德国、荷兰和俄国的马克思主义者就开始谈到经济长波的存在。然而,正是在20年代,苏联经济学家N·康德拉捷夫提出了一个关于'经济长周期'的概念。康德拉捷夫与'康德拉捷夫周期'康德拉捷夫出身于普通农民家庭,大学毕业后,担任二月革命后临时政府的粮食部副部长。十月革命后,他放弃政治活动而致力于科研工作,

关键词：二月革命农民家庭粮食部政治活动副部长持久性托洛茨基博卡拉马克思主义学者技术进步

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琼脂糖和卡拉胶在凝胶中的相互作用

华东化工学院学报 1990年第4期16卷 386-391页

作者：张建新 c. Roc.as M. Rinaudo 华东化工学院技术化学物理研究室法国科学研究中心植物高分子研究所

研究了琼脂糖(Agarose)和卡拉胶(c.rrageenan)共混物在水溶液中的相互作用力。通过测定不同组成的共混凝胶的力学性质,结果显示琼脂糖和卡拉胶之间的相互作用很小,仅存在相互之间的空间效应。但在大形变时,凝胶的性质类似理想溶液。纯... 详细信息

研究了琼脂糖(Agarose)和卡拉胶(c.rrageenan)共混物在水溶液中的相互作用力。通过测定不同组成的共混凝胶的力学性质,结果显示琼脂糖和卡拉胶之间的相互作用很小,仅存在相互之间的空间效应。但在大形变时,凝胶的性质类似理想溶液。纯凝胶的弹性模量(E)和浓度(c.的关系可以用E=kc.n表示,其中k值的大小意味着网络交联的强度,n与分子量有很大的关系。

关键词：琼脂糖卡拉胶凝胶多糖

Gradient desc.nt dec.mposition of forc.-field motor primitives optogenetic.lly elic.ted for motor mapping of the murine lumbosac.al spinal c.rd

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Zoologic.l Researc. 2023年第3期44卷 604-619页

作者： Paola Salmas Vinc.nt c.K c.eung Sc.ool of Biomedic.l Sc.enc.s and Gerald Choa Neuroscience InstituteThe Chinese University of Hong KongHong Kong SARChina Kunming Institute of Zoology-The c.inese University of Hong Kong(KIZ-c.HK)Joint Laboratory of Bioresourc.s and Molec.lar Researc. of c.mmon Diseases Hong Kong SARChina

Generating diverse motor behaviors c.itic.l for survival is a c.allenge that c.nfronts the c.ntral nervous system(c.S)of all *** movement exec.tion,the c.S performs c.mplex c.lc.lations to c.ntrol a large number of neuromusc.loskeletal *** theory of modular motor c.ntrol proposes that spinal interneurons are organized in disc.ete modules that c.n be linearly c.mbined to generate a variety of behavioral *** modules have been previously represented as stimulus-evoked forc. fields(FFs)c.mprising isometric.limb-endpoint forc.s ac.oss workspac. ***,we ask whether FFs elic.ted by different stimulations indeed represent the most elementary units of motor c.ntrol or are themselves the c.mbination of a limited number of even more fundamental motor *** probe for potentially more elementary modules,we optogenetic.lly stimulated the lumbosac.al spinal c.rd of intac. and spinalized Thy1-c.R2 transgenic.mic.(n=21),elic.ting FFs from as many single stimulation loc. as possible(20-70 loc. per mouse)at minimally nec.ssary *** found that the resulting varieties of FFs defied simple c.tegorization with just a few *** used gradient desc.nt to further dec.mpose the FFs into their underlying basic.forc. fields(BFFs),whose linear c.mbination explained FF *** mic.,we identified 4-5 BFFs with partially loc.lizable but overlapping representations along the spinal *** BFFs were struc.ured and topographic.lly distributed in suc. a way that a rostral-to-c.udal traveling wave of ac.ivity ac.oss the lumbosac.al spinal c.rd may generate a swing-to-stanc. gait *** BFFs may represent more rudimentary submodules that c.n be flexibly merged to produc. a library of motor modules for building different motor behaviors.

关键词： Motor mapping Optogenetic. Spinal c.rd Motor primitives Traveling wave

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注海水经验综述

石油石化节能与计量 1987年第4期 44-48+25页

作者： c. c. Mec.ne 孙国勇

五十年代,美国路易斯安那州的贝马尚油田开始开发,1963年开始注海水。注水深度3350～3660m。平均孔隙率29％,渗透率小于100～2000md。海水注入量为7900m3/d,它是最老的和最成功的注海水工程。英国北海的尼尼安油田于1979年开始注海水,... 详细信息

五十年代,美国路易斯安那州的贝马尚油田开始开发,1963年开始注海水。注水深度3350～3660m。平均孔隙率29％,渗透率小于100～2000md。海水注入量为7900m3/d,它是最老的和最成功的注海水工程。英国北海的尼尼安油田于1979年开始注海水,注水能力为70000m3/d,注水压力为295.26kg/c.2。地层平均孔隙率为20％,平均渗透率为850md。

关键词：反冲洗悬浮固体含量过滤元件增压泵脱氧塔提升泵硅藻土过滤器尼尼安注水泵油田工程石油工程滤床过滤器壳体海水处理