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235篇 您的检索式:作者名="Graetz"
    题名 作者 年代 出处 被引量
1Global, regional, and national prevalence of overweight and obesity in children and adults during 1980–2013: a systematic analysis for the Global Burden of Disease Study 2013显示文摘Marie Ng Tom Fleming Margaret Robinson Blake Thomson Nicholas Graetz Christopher Margono Erin C Mullany Stan Biryukov Cristiana Abbafati Semaw Ferede Abera Jerry P Abraham Niveen M E Abu-Rmeileh Tom Achoki Fadia S AlBuhairan Zewdie A Alemu Rafael Alfonso 2014The Lancet2014,,:7
2Isolation and characterisation of human gingival margin-derived STRO-1/MACS^+ and MACS^-cell populations显示文摘Recently,gingival margin-derived stem/progenitor cells isolated via STRO-1/magnetic activated cell sorting(MACS) showed remarkable periodontal regenerative potential in vivo.As a second-stage investigation,the present study's aim was to perform in vitro characterisation and comparison of the stem/progenitor cell characteristics of sorted STRO-1-positive(MACS^+) and STRO-1-negative(MACS^-) cell populations from the human free gingival margin.Cells were isolated from the free gingiva using a minimally invasive technique and were magnetically sorted using anti-STRO-1 antibodies.Subsequently,the MACS^+ and MACS^- cell fractions were characterized by flow cytometry for expression of CD14,CD34,CD45,CD73,CD90,CD105,CD146/MUC18 and STRO-1.Colony-forming unit(CFU) and multilineage differentiation potential were assayed for both cell fractions.Mineralisation marker expression was examined using real-time polymerase chain reaction(PCR).MACS^+ and MACS- cell fractions showed plastic adherence.MACS^+ cells,in contrast to MACS- cells,showed all of the predefined mesenchymal stem/progenitor cell characteristics and a significantly higher number of CFUs(P<0.01).More than 95%of MACS^+ cells expressed CD105,CD90 and CD73;lacked the haematopoietic markers CD45,CD34 and CD14,and expressed STRO-1 and CD146/MUC18.MACS- cells showed a different surface marker expression profile,with almost no expression of CD14 or STRO-1,and more than 95%of these cells expressed CD73,CD90 and CD146/MUC18,as well as the haematopoietic markers CD34 and CD45 and CD105.MACS^+ cells could be differentiated along osteoblastic,adipocytic and chondroblastic lineages.In contrast,MACS- cells demonstrated slight osteogenic potential.Unstimulated MACS^+ cells showed significantly higher expression of collagen I(P<0.05) and collagen III(P<0.01),whereas MACS^- cells demonstrated higher expression of osteonectin(P<0.05;MannWhitney).The present study is the first to compare gingival MACS^+ and MACS- cell populations demonstrating that MACS^+ cells,in contrast to MACS- cells,harbour stem/progenitor cell characteristics.This study also validates the effectiveness of the STRO-l/MACS^+technique for the isolation of gingival stem/progenitor cells.Human free gingival margin-derived STRO-1/MACS^+ cells are a unique renewable source of multipotent stem/progenitor cells.Karim M Fawzy El-Sayed Sebastian Paris Christian Graetz Neemat Kassem Mohamed Mekhemar Hendrick Ungefroren Fred Fndrich Christof Drfer 2015International Journal of Oral Science2015,7,2:6
3Geospatial Mapping of Soil Nitrate-Nitrogen Distribution Under a Mixed-Land Use System显示文摘Mapping the spatial distribution of soil nitrate-nitrogen (NO3-N) is important to guide nitrogen application as well as to assess environmental risk of NO3-N leaching into the groundwater. We employed univariate and hybrid geostatistical methods to map the spatial distribution of soil NO3-N across a landscape in northeast Florida. Soil samples were collected from four depth increments (0-30, 30-60, 60-120 and 120-180 cm) from 147 sampling locations identified using a stratified random and nested sampling design based on soil, land use and elevation strata. Soil NO3-N distributions in the top two layers were spatially autocorrelated and mapped using lognormal kriging. Environmental correlation models for NO3-N prediction were derived using linear and non-linear regression methods, and employed to develop NO3-N trend maps. Land use and its related variables derived from satellite imagery were identified as important variables to predict NO3-N using environmental correlation models. While lognormal kriging produced smoothly varying maps, trend maps derived from environmental correlation models generated spatially heterogeneous maps. Trend maps were combined with ordinary kriging predictions of trend model residuals to develop regression kriging prediction maps, which gave the best NO3-N predictions. As land use and remotely sensed data are readily available and have much finer spatial resolution compared to field sampled soils, our findings suggested the e?cacy of environmental correlation models based on land use and remotely sensed data for landscape scale mapping of soil NO3-N. The methodologies implemented are transferable for mapping of soil NO3-N in other landscapes.S. LAMSAL C. M. BLISS D. A. GRAETZ 2009Pedosphere2009,19,4:6
4The assessment and monitoring of sparsely vegetated rangelands using calibrated Landsat data显示文摘Graetz R D Pech R R Davis A W 1988International Journal of Remote Sensing1988,9,7:1
5An environmental threshold for degree of phosphorus saturation in sandy soils显示文摘Nair V D Portier K M Graetz D A 2004Journal of Environmental Quality2004,33,:1
6Nanocrystalline and thin film germanium electrodes with high lithium capacity and high rate capabilities显示文摘GRAETZ J AHN C C YAZAMI R 2004J Electrochem Soc2004,151,5:1
7Understanding the Role of Ti in Reversible Hydrogen Storage as Sodium Alanate : a Combined Experimental and Density Functional Theoretical Approaeh显示文摘Chaudhuri S Graetz J ignatov A 2006JAm Chem Soc2006,1,28:1
8Strategic thinking verse strategic planning: towards understanding the complementarities 显示文摘 2002Management Decision2002,,40:1
9Phosphorus retention by wetland soils used for treated wastewater disposal显示文摘Gale P M Reddy K R Graetz D A 1994 1994J Environ Qual1994,23,:1
10Radiologic assessment of maxillofacial,mandibular,and skull base trauma显示文摘Schuknecht B Graetz K 2005Eur Radiol2005,15,3:1
11Determination of steroidal estrogens in flushed dairy manure wastewater by gas chromatography-mass spectrometry显示文摘HANSELMAN T A GRAETZ D A WILKIE A C 0,,03:1
12An environmental threshold for degree of phosphorus saturation in sandy soils 显示文摘Nair V D Portier K M Graetz D A 2004Journal of Environmental Quality2004,33,:1
13The assessment and monitoring of sparsely vegetated rangelands using calibrated Landsat data显示文摘Graetz R D Pech R P Davis A W 1988International Journal of Remote Sensing1988,9,:1
14Scale, context, and decision making in agricultural adaptation to climate variability and change显示文摘James Risbey Milind Kandlikar Hadi Dowlatabadi Dean Graetz 1999Mitigation and Adaptation Strategies for Global Change1999,,2:1
15Water table effects on phosphorus reactivity and mobility in a dairy manure-impacted Spodosol显示文摘VILLAPANDO R R GRAETZ D A 2001Ecological Engineering2001,18,:1
16Phosphorus saturation in spodosols impacted by manure 显示文摘Nair V Graetz D 2002Journal of Environmental Quality2002,31,:1
17Highly reversible lithium storage in nanostructured silicon显示文摘GRAETZ J AHN C C YAZAMI R FULTZ B 2003Electrochem Solid-State Lett2003,6,:1
18Water table effects on histosol drainage water carbon,nitrogen and phosphorus显示文摘Martin H W Ivanoff D B Graetz D A 1997Environmental Quality1997,,26:1
19Filtering Pathfinder AVHRR Land NDVI Data for Australia显示文摘Lovell J L Graetz R D 2001International Journal of Remote Sensing2001,22,13:1
20显示文摘Graetz J Reilly J J Kulleck J G 2007Journal of Alloys and Compounds2007,,:1
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