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929篇 您的检索式:作者名="Ranson"
    题名 作者 年代 出处 被引量
1利用激光雷达和多角度频谱成像仪数据估测森林垂直参数(英文)显示文摘植被的结构参数如植被高度、生物量、水平和垂直分布等,是影响陆地与大气能量交换乃至生物圈多样性的重要因素。多数遥感系统虽然可以提供植被水平结构的图像,但是不能提供植被成分垂直分布的信息。大尺度激光雷达仪器如LVIS产生的激光雷达信号,已成功地用于估计树高和森林生物量,然而大多数激光雷达仪器不具备图像能力,只能提供一个区域内的采样数据。其他的遥感数据如多角度高光谱、多频率多时相辐射计或雷达数据,可根据GLAS(Geoscience Laser Altimeter System)采样的测量用来推断出连续的森林结构区域覆盖参数。MISR(Multi-angle Imaging Spectrometer)对陆表多角度的成像能力,可以通过BRDF的各向异性提供植被的结构信息。结合激光雷达的垂直采样和MISR的图像,区域内乃至全球性的森林空间参数的成像是可能的。ICESat卫星上的GLAS数据、Terra卫星上的MISR数据为区域或全球性森林结构参数提供了可能。本文的研究目的是评估GLAS数据,分析类似于MISR的数据对森林结构参数的估计能力。本文中使用了LVIS、AirMISR和GLAS数据。通过对GLAS树高的测量与GLAS像元内来自LVIS的平均树高对比,发现它们是高度相关的。同时还探讨了多角度频谱成像仪数据预测树高信息的能力,这将在今后区域内森林结构参数映射加以研究。孙国清 Ranson K J 张钟军 2006遥感学报2006,10,4:16
2Cryopreservation for delayed circulating tumor cell isolation is a valid strategy for prognostic association of circulating tumor cells in gastroesophageal cancer显示文摘AIM To demonstrate the feasibility of cryopreservation of peripheral blood mononuclear cells(PBMCs) for prognostic circulating tumor cell(CTC) detection in gastroesophageal cancer.METHODS Using 7.5 m L blood samples collected in EDTA tubes from patients with gastroesopheagal adenocarcinoma, CTCs were isolated by epithelial cell adhesion molecule based immunomagnetic capture using the Iso Flux platform. Paired specimens taken during the same blood draw(n = 15) were used to compare number of CTCs isolated from fresh and cryopreserved PBMCs. Blood samples were processed within 24 h to recover the PBMC fraction, with PBMCs used for fresh analysis immediately processed for CTC isolation. Cryopreservation of PBMCs lasted from 2 wk to 25.2 mo(median 14.6 mo). CTCs isolated from pre-treatment cryopreserved PBMCs(n = 43) were examined for associations with clinicopathological variables and survival outcomes.RESULTS While there was a significant trend to a decrease in CTC numbers associated with cryopreserved specimens(mean number of CTCs 34.4 vs 51.5, P = 0.04), this was predominately in samples with a total CTC count of > 50, with low CTC count samples less affected(P = 0.06). There was no significant association between the duration of cryopreservation and number of CTCs. In cryopreserved PBMCs from patient samples prior to treatment, a high CTC count(> 17) was associated with poorer overall survival(OS)(n = 43, HR = 4.4, 95%CI: 1.7-11.7, P = 0.0013). In multivariate analysis, after controlling for sex, age, stage, ECOG performance status, and primary tumor location, a high CTC count remained significantly associated with a poorer OS(HR = 3.7, 95%CI: 1.2-12.4, P = 0.03). CONCLUSION PBMC cryopreservation for delayed CTC isolation is a valid strategy to assist with sample collection, transporting and processing.Daniel Brungs David Lynch Alison WS Luk Elahe Minaei Marie Ranson Morteza Aghmesheh Kara L Vine Martin Carolan Mouhannad Jaber Paul de Souza Therese M Becker 2018World Journal of Gastroenterology2018,24,7:5
3Insecticide Resistance in Insect Vectors of Human Disease显示文摘Janet Hemingway Hilary Ranson 2000Annual Review of Entomology2000,,:4
4新一代全球卫星观测系统(EOS)概述显示文摘YoramJ. Kaufman David D.Herring K.Jon Ranson G.James Collatz 于新文 2000新疆气象2000,23,1:2
5Epitaxy of rare earth element fluorcarbonate minerals from carbonatite dyke at Bayan Obo, Inner Mongolia, China显示文摘Rare earth element fluorocarbonate minerals such as bastnaesite and parisite are firstly discovered in carbonatite dykes from Bayan Obo, Inner Mongolia, China. Bastnaesite rarely occurs as homogeneously single crystal, but contains microfine phase of parisite. They form regular intergrowth along (0001) plane net, which is identified as epitaxy. This eptactic texture results from the variation of chemical composition of crystallizing agents of those minerals that crystallize directly from carbonatite magma.Xueming Yang Peishan Zhang Kejie Tao Xiaoyong Yang Shuangxi Chen Minglong Zou M. J. Le Bas R. N. Wilson R. Ranson L. S. Campbell et al. 1998Chinese Science Bulletin1998,43,13:2
6Optimal management of the pancreatic remnant after pancreaticoduodenectomy 显示文摘Marcus ST Cohen H Ranson JHC 1995Ann Surg1995,221,:2
7Achieving accuracy requirements for forest biomass mapping: A spaceborne data fusion method for estimating forest biomass and LiDAR sampling error显示文摘P.M. Montesano B.D. Cook G. Sun M. Simard R.F. Nelson K.J. Ranson Z. Zhang S. Luthcke 2013Remote Sensing of Environment2013,,:2
8Digital imaging techniques in experimental stress analysis 显示文摘PETERS W H RANSON W F 1982Optical Engineering1982,21,3:1
9Pyrethroid resistance in African anopheline mosquitoes:what are the implications for ma- laria control 显示文摘Ranson H N'guessan R Lines J 2011Trends Parasitol2011,27,2:1
10Digital imaging technique in experimental stress analysis显示文摘Peter W H Ranson W F 1982Opt Eng1982,21,3:1
11Optimal management of thepancreatic remnant after pancreaticoduodenectomy显示文摘Marcs S Cohen H Ranson Jhc 1995Ann Sury1995,221,6:1
12ZD1839, a selective oral epidermal growth factor receptor-tyrosine kinase inhibitor, is well tolerated and active in patients with solid, malignant tumors:Results of a phaseⅠ trial 显示文摘Ranson M Hammond LA Ferry D 2002J Clin Oncol2002,20,9:1
13Scene shadow effects on multispectral response显示文摘Ranson K J Daughtry C S T 1987IEEE Transactions on Geoscience and Remote Sensing1987,25,4:1
14Prognostic signs and the role of operative management in acute pancreatitis 显示文摘Ranson JH Rifkind KM Roses DF 1974Surg Gynecol Obstet1974,139,1:1
15Application of digital correlation methods to rigid body mechanics显示文摘PETERSW H RANSON W F SUTTON M A 1983Optical Engineering1983,22,6:1
16Phase I investigation of recombinant anti-human vascular endothelial growth factor antibody in patients with advanced cancer显示文摘Jayson GC Mulatero C Ranson M 2005Eur J Cancer2005,41,4:1
17Optimal management of the pancreatic remnant after pancreaticoduodenectomy显示文摘Marcus S Cohen H Ranson J 1995Ann Surg1995,221,6:1
18Prevention,diagnosis,and treatment of pancreatitic abscess显示文摘Ranson JH Spence FC 1977Surgery1977,82,2:1
19Nuclear proto-oncogenes fos and jun 显示文摘Ransone LJ Verma IM 1990Annu Rev Cell Biol1990,6,:1
20Phase I safety,pharmacokinetic, and pharmaeodynamic trial of ZD1839, a selective oral epidermal growth factor receptor tyroslne kinase inhibitor, in patients with five selected solid tumor types显示文摘BASELGA J RISCHIN D RANSON M 2002J Clin Oncol2002,20,21:1
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