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245篇 您的检索式:作者名="G.R."
    题名 作者 年代 出处 被引量
1颈动脉狭窄:无创伤性检查的准确性——个体病人数据的Meta分析显示文摘目的评价临床相关的无创伤性影像学检查——US、CT血管成像、MR血管成像和MR增强血管成像对于诊断重度和中度有症状的颈动脉狭窄的准确性;确定先期各种特异性临床因素和临床表现对诊断准确性的影响:评估两种无创性检查的一致性。方法利用原始检查资料得到伦理委员会认可。所有的资料都是匿名的。利用个体病例无创性影像学检查的资料(IPDS)评估有症状的颈动脉狭窄的敏感度、特异度和一致性:比较同侧与对侧动脉:比较IPDs与文献的评估结果;F.M. Chappell J.M. Wardlaw G.R. Young J.H. Gillard G.H. Roditi B. Yip 郑梅竹(译) 夏爽(校) 2009国际医学放射学杂志2009,32,4:12
2一种预防老年人带状疱疹与疱疹后神经痛的疫苗Oxman M.N. Levin M.J. Johnson G.R. 郭俊 2005世界核心医学期刊文摘(神经病学分册)2005,0,10:9
3Computational Identification of miRNAs and Their Target Genes from Expressed Sequence Tags of Tea(Camellia sinensis)显示文摘MicroRNAs (miRNAs) are a newly identified class of small non-protein-coding post-transcriptional regulatory RNA in both plants and animals. The use of computational homology based search for expressed sequence tags (ESTs) with the Ambros empirical formula and other structural feature criteria filter is a suitable combination towards the discovery and isolation of conserved miRNAs from tea and other plant species whose genomes are not yet sequenced. In the present study, we blasted the database of tea (Camellia sinensis) ESTs to search for potential miRNAs, using previously known plant miRNAs. For the first time, four candidate miRNAs from four families were identified in tea. Using the newly identified miRNA sequences, a total of 30 potential target genes were identified for 11 miRNA families; 6 of these predicted target genes encode transcription factors (20%), 16 target genes appear to play roles in diverse physiological processes (53%) and 8 target genes have hypothetical or unknown functions (27%). These findings considerably broaden the scope of understanding the functions of miRNA in tea.G.R. Prabu A.K.A. Mandal 2010Genomics, Proteomics & Bioinformatics2010,8,2:6
4东南亚早期的穆斯林贸易商显示文摘伊斯兰帝国的建立,是亚洲大陆顶端两大文明中心之间国际贸易发展的一个契机。在西方,在穆罕默德在世及紧接其后的时期里,罗马帝国与远东的直接交通被拜占廷和萨珊王朝之间的不和所遮断。中国自汉朝衰微以后,也经历了一段黑暗的岁月。然而,随着伊斯兰帝国的出现,中东不再是敌对势力的缓冲地带而是走向统一。同时,在其本土产生一个方兴未艾的文化和人口中心,从而形成了一个新的远东商品的重要市场。G.R.蒂贝茨 喻常森 1991南洋资料译丛1991,,1:3
5Effects of rainwater harvesting on herbage diversity and productivity in degraded Aravalli hills in western India显示文摘Over-exploitation and rural growth have severely damaged native vegetations of Aravalli hills in Rajasthan, India. This study was conducted to evaluate the effects of different restoration practices (i.e., rainwater harvesting (RWH) and planting of tree seedlings) on improve- ment in soil water and nutrients and growth and biomass of herbaceous vegetation. Contour trench (CT), Gradonie (G), Box trench (BT), V-ditch (VD) and a control were imposed on 75 plots (each of 700 m 2 ) in natural slope gradient defined as <10%, 10% 20% and >20% slopes in 2005. Each plot had three micro-sites of 1-m 2 at up (USP), middle (MSP) and lower (LSP) part of the plot for observation in 2008. The existed gradient (due to soil texture and topographic features) of soil pH, EC, SOC, NH 4 - N, NO 3 -N and PO 4 -P in June 2005 between >20% to <10% slopes were decreased in 2008 after applying RWH techniques. Such improvement in soil status promoted vegetation growth and biomass in higher slope gra- dients. Soil water, species diversity and herbage biomass increased from USP to LSP, and RWH techniques had positive role in improving SOC, nutrients, vegetation population, evenness and growth at MSP. Despite of lowest SWC, regular rain and greater soil water usage enhanced green and dry herbage biomasses in 10% 20% and >20% slopes, compared with <10% slope. The highest diversity in CT treatment was related to herbage biomass, which was enhanced further by highest concentrations of SOC and PO 4 -P. Further, CT treatment was found to be the best treat- ment in minimizing biomass variance in different slopes. Conclusively, soil texture and topographic features controlled soil water and nutrients availability. Rainwater harvesting techniques increased soil water storage and nutrient retention and also enhanced vegetation status and biomass by minimizing the effects of hillslopes. Thus depending upon the site conditions, suitable RWH technique could be adopted to increase herb- age biomass while rehabilitating the degraded hills.G. Singh G.R. Choadhary B. Ram N.K. Limba 2011Journal of Forestry Research2011,22,3:3
6秸秆和作物覆盖对土壤流失的影响显示文摘人们普遍认为,由于地面上的作物覆盖和秸秆覆盖减小了雨滴对土壤的打击力,又减少了暴雨径流,因而是影响土壤侵蚀的主要因素.本试验对这两个变量如何影响细沟侵蚀作了研究.M.J.克汉 E.J.蒙克 G.R.福斯特 王小京 1992水土保持科技情报1992,,2:3
7In-plane MEMS-based nano-g accelerometer with sub-wavelength optical resonant sensor显示文摘U. Krishnamoorthy R.H. Olsson G.R. Bogart M.S. Baker D.W. Carr T.P. Swiler P.J. Clews Sensors & Actuators: A Physical0,,:2
8Studies on cadmium toxicity in plants: A review显示文摘P. Das S. Samantaray G.R. Rout 1998Environmental Pollution1998,,1:2
9Fat deposition, fatty acid composition and meat quality: A review显示文摘J.D. Wood M. Enser A.V. Fisher G.R. Nute P.R. Sheard R.I. Richardson S.I. Hughes F.M. Whittington 2007Meat Science2007,,4:2
10Ferritic/martensitic steels – overview of recent results显示文摘R.L. Klueh D.S. Gelles S. Jitsukawa A. Kimura G.R. Odette B. van der Schaaf M. Victoria 2002Journal of Nuclear Materials2002,,:2
11Finite element analysis of tunnel–soil–pile interaction using displacement controlled model显示文摘C.Y. Cheng G.R. Dasari Y.K. Chow C.F. Leung 2006Tunnelling and Underground Space Technology incorporating Trenchless Technology Research2006,,4:2
12Clinical risk factors of delayed gastric emptying in patients after pancreaticoduodenectomy: A systematic review and meta-analysis显示文摘H. Qu G.R. Sun S.Q. Zhou Q.S. He 2012European Journal of Surgical Oncology2012,,:2
13国际镍公司铲运机自动化发展回顾显示文摘本文介绍了斯托比矿铲运机自动化技术的最新发展,对该矿的通讯系统以及利用该系统从地表遥控地下设备的能力作了回顾,重点介绍井下铲运机地表遥控操纵系统的开发。R.A.普尔 P.V.戈登 G.R.贝顿 左立标 1998世界采矿快报1998,14,5:2
14管柱腐蚀的分析和处理方法优选显示文摘列举了作业工处理油管腐蚀的几种方法 。G.R.'Bob'Moe Carl K Johnson 马文英 2002石油石化节能2002,0,11:2
15Soil–structure interaction for landslide stabilizing piles显示文摘C.-Y. Chen G.R. Martin 2002Computers and Geotechnics2002,,5:2
16Simple Characteristics Estimation Methods of Material and Molecule Electronic Structure显示文摘M.Y. Dolomatov D.O. Shulyakovskaya G.R. Mukaeva G.U. Jarmuhametova K.F. Latypov 2012材料科学与工程(中英文B版)2012,2,4:2
17国际镍公司未来25年的机器人采矿显示文摘未来25年通过逐步引进机器人采矿设备,将会引出地下采矿设备和方法的重大变化。这种变化的一些必要组成部分已在进行实验,有些部分目前在生产中。本文仔细研究了达到机器人采矿所需的各个部分:通信系统、机器人采矿设备、地下定位系统和机器人采矿软件。除了研究这些部分以外,还要分析改为机器人采矿的经济性。G.R.贝登 周叔良 1996国外金属矿山1996,21,10:2
18On the structure and chemistry of complex oxide nanofeatures in nanostructured ferritic alloy U14YWT显示文摘D. Bhattacharyya P. Dickerson G.R. Odette S.A. Maloy A. Misra M.A. Nastasi 2012Philosophical Magazine2012,,16:1
19Starlike trees are determined by their Laplacian spectrum显示文摘G.R. Omidi K. Tajbakhsh 2007Linear Algebra and Its Applications2007,,2:1
20查看详情显示文摘Lopez J.G Rodriguea V.Y Roces L Granda S.G. Martinez A. Garcia A.G. Castro G.R. Villacorta F.J. Iglesias M.J. Ortiz F.L 0,,:1
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