维普中文期刊产品整合服务
326篇 您的检索式:作者名="WOOD MA"
    题名 作者 年代 出处 被引量
1CO_2浓度变化和气候变化对中国陆地生态系统净初级生产及其平衡的影响(英文)显示文摘本文应用陆地生态系统模型(TEM,4.0)对中国陆地生态系统在目前气候下的净初级生产力,以及在CO2浓度增加和气候变化后的净初级生产力的变化进行了预测。气候变化模型采用三种大气环流模型生成,即:GISS、GFDL和OSU模型。在当前气候条件和CO2浓度(312.5×10-6)下,TEM模型预测中国陆地生态净初级生产力为3,653TgC·a-1(1012gC·a-1)。温带常绿阔叶林是生产力最高的生物区,占有中国净初级生产力的最大比例。NPP的空间格局主要与降水量和温度的空间分布相关联。中国陆地生态系统的年净初级生产力对CO2浓度和气候的变化敏感。在陆地区域尺度上,其年净初级生产力仅在CO2浓度上升至519×10-6的情况下可增加6.0%(219TgC·a-1)。在气候变化而无CO2浓度变化的条件下,净初级生产力的响应在GISS气候方案下表现为1.5%(54.8TgC·a-1)的降低,在GFDL-q气候方案下表现为8.4%(306.9TgC·a-1)的增加。在气候和CO2浓度均发生变化的情况下,净初级生产力有较大程度的增加,在GISS气候方案下的增加比例为18.7%(683TgC·a-1),在GFDL-q气候?Xiao 1,2 , X., J.M.Melillo 1, D.W.Kicklighter 1, Y.Pan 1, A.D.McGuire 3 and J.Helfrich 1 ( 1The Ecosystems Center, Marine Biological Laboratory, Woods Hole, MA 02543, USA) ( 2 The Joint Program on the Science and Policy of Globa 1998植物生态学报1998,22,2:35
2GDNF-Enhanced Axonal Regeneration and Myelination Following Spinal Cord Injury is Mediated by Primary Effects on Neurons显示文摘我们先前研究表明胶质细胞源性神经营养因子(GDNF)联合施万细胞移植能促进脊髓损伤后轴突再生和髓鞘形成。然而,GDNF介导这一过程的细胞靶点尚不清楚。在此,我们报道了GDNF可增加在体再生轴突的数目和直径,并促进体外背根神经节神经元的轴突向外生长,提示GDNF对神经元有直接作用。在施万细胞-背根神经节神经元共培养下,GDNF显著增加施万细胞生成的髓鞘数目;GDNF处理对孤立培养的施万细胞增殖无作用,但可促进已与神经轴突有突触联系的施万细胞增殖;GDNF可增加孤立施万细胞中分子量为140kDa的神经细胞黏附分子(NCAM)的表达,但对黏附分子L1表达或神经营养因子NGF、NT3及BDNF分泌没有影响。总之,这些结果支持假设:GDNF提高轴突再生和施万细胞髓鞘形成主要是通过GDNF对神经元的直接作用介导的,并且提示GDNF联合施万细胞移植可能是促进脊髓损伤后轴突再生和髓鞘形成的有效策略之一。LIQUN ZHANG ZHENGWEN MA GEORGE M. SMITH XUEJUN WEN YELENA PRESSMAN PATRICK M. WOOD AND XIAO-MING XU 2009神经损伤与功能重建2009,4,4:25
3Interactions between hotspots and the Southwest Indian Ridge during the last 90 Ma:Implications on the formation of oceanic plateaus and intra-plate seamounts显示文摘This study investigates the relationship between the hotspot-ridge interaction and the formation of oceanic plateaus and seamounts in the Southwest Indian Ocean.We first calculated the relative distance between the Southwest Indian Ridge (SWIR) and relevant hotspots on the basis of models of plate reconstruction,and then calculated the corresponding excess magmatic anomalies of the hotspots on the basis of residual bathymetry and Airy isostasy.The results reveal that the activities of the Marion hotspot can be divided into three main phases:interaction with the paleo-Rodrigues triple junction (73.6-68.5 Ma),interaction with the SWIR (68.5-42.7 Ma),and intra-plate volcanism (42.7-0 Ma).These three phases correspond to the formation of the eastern,central,and western parts of the Del Cano Rise,respectively.The magnitude and apparent periodicity of the magmatic volume flux of the Marion hotspot appear to be dominated by the hotspot-ridge distance.The periodicity of the Marion hotspot is about 25 Ma,which is much longer than that of the Hawaii and Iceland hotspots (about 15 Ma).ZHANG Tao 1,2,3,4,LIN Jian 5 & GAO JinYao 3,4 1 Institute of Geodesy and Geophysics,Chinese Academy of Sciences,Wuhan 430077,China 2 Graduate University of Chinese Academy of Sciences,Beijing 100049,China 3 The Second Institute of Oceanography,State Oceanic Administrator,Hangzhou 310012,China 4 Key Laboratory of Submarine Geosciences,State Oceanic Administrator,Hangzhou 310012,China 5 Department of Geology and Geophysics,Woods Hole Oceanographic Institution,Woods Hole,MA 02543,USA 2011Science China Earth Sciences2011,54,8:16
4Wood Properties of Poplar from Stand Affected by Acid Rain显示文摘Wood properties from 28 trees (Populus euramericana) selected from healthy and acid rain damaged forest were measured to evaluate the possible impacts on wood quality and utilization. On the heavily damaged location, the pH value of precipitation ranged from 3.7-5.0, and sulfate loading ranged from 20-40 kg·ha-2.y-1. Quantitative and qualitative studies on ring width, physical properties and mechanical properties indicated that changes of wood properties between diseased and healthy poplar occurred. Aci...ZHOU Dingguo MA LianxiangCollege of wood science and Technology, Nanjing Forestry University. Nanjing 210037. China 2002Chinese Forestry Science and Technology2002,1,3:2
5Solitarg breast papilloma; comparison of mammgraphic,galactographic and pathologic finding显示文摘Woods ER Helvie MA Ikeda DM 1992AJR1992,159,:1
6Clinical and electrophysiologic effects of calcium channel blockers in patients receiving ibutilide显示文摘Wood MA Gilligan DM Brown-Mahoney C 2002Am Heart J2002,143,1:1
7Investigation of the presence of OH radicals in electrolyzed NaCl solution by electron spin resonance spectroscopy显示文摘Stan SD Woods JS Daeschel MA 2005Journal of Agricultural and Food Chemistry2005,53,:1
8Identification of a pathogenicity island required for Salmonella enteropathogenicity 显示文摘Wood MW Jones MA Watson PR Hedges S Wallis TS Galyov EE 1998Mol Microbiol1998,29,3:1
9The cell cycle hypothesis of Alzheimer's disease:suggestions for drug development显示文摘Woods J Snape M Smith MA 2007Biochim Biophys Acta2007,1772,4:1
10Delayed complications following pacemaker implantation 显示文摘Ellenbogen KA Wood MA 2002Pacing Clin Elect rophysiol2002,25,8:1
11Tricyclic antidepressants, QT interval prolongation, and torsade de pointes 显示文摘Vieweg WV Wood MA 2004Psychosomatics2004,45,5:1
12Gypenosides inhibits migration and invasion of human oral cancer SAS cells through the inhibition of matrix metalloproteinase-2 -9 and urokinase-plasminogen by ERK1/2 and NF-kappa B signaling pathways显示文摘Lu Kung-Wen Chen Jung-Chou Lai Tung-Yuan Yang Jai-Sing Weng Shu-Wen Ma Yi-Shih Lu Pei-Jung Weng Jing-Ru Chueh Fu-Shin Gibson Wood W Chung Jing-Gung 2011Human and Experimental Toxicology2011,,5:1
13Molecular modeling studies on G-quadruplex complexes of telomerase inhibitors:structure-activity relationships显示文摘Read MA Wood AA Harrison JR 1999J Med Chem1999,42,22:1
14Solitary breast papilloma显示文摘Woods ER Helvie MA Ikeda DM 1992AJR1992,159,3:1
15Modulation of chromatin modification facilitates extinction o f cocaine-induced conditioned place preference显示文摘Malvaez M Sanchis-Segura C Vo D Lattal KM Wood MA 2010Biol Psychiatry2010,67,1:1
16Efficacy and safety of repeated intravenous doses of ibutilide for rapid conversion of atrial flutter or fibrillation显示文摘Stambler BS Wood MA Ellenbogen KA 1996Ibutilide repeat Dose Study Investigators Circulation1996,94,:1
17Antiarrhythmic action of intravenous ibutilide compared with procainamide during human atrial flutter and fibrillation: electrophysiological determinants of enhanced conversion efficacy 显示文摘 Wood MA Ellenbogen KA 1997Circulation1997,96,12:1
18Aldehyde load in ischemia-reperfusion brain injury: neuroprotection by neutralization of reactive aldehydes with phenelzine显示文摘WOOD PL KHAN MA MOSKAL JR 2006Brain Res2006,1122,1:1
19Comparison of ampicillin-sulbactam and imipenem-cilastatin for the treatment of acinetobacter ventilator-associated pneumonia显示文摘Wood GC Hanes SD Croce MA 2002Clin Infect Dis2002,34,:1
20Carbon dynamics subsequent to establishment of switchgrass显示文摘Z. Ma C.W. Wood D.I. Bransby 2000Biomass and Bioenergy2000,,2:1
返回顶部 每页显示:
共17页 首页 上一页 第1页 下一页 末页 /17 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费