排序方式: 共有7条查询结果,搜索用时 15 毫秒
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Detection of human leukaemia associated antigens in leukaemic serum and normal embryos 总被引:4,自引:0,他引:4
R Harris D Viza R Todd J Phillips R Sugar R F Jennison G Marriott M H Gleeson 《Nature》1971,233(5321):556-557
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Molecular mechanisms of desiccation tolerance in the resurrection glacial relic Haberlea rhodopensis
Tsanko S. Gechev Maria Benina Toshihiro Obata Takayuki Tohge Neerakkal Sujeeth Ivan Minkov Jacques Hille Mohamed-Ramzi Temanni Andrew S. Marriott Ed Bergström Jane Thomas-Oates Carla Antonio Bernd Mueller-Roeber Jos H. M. Schippers Alisdair R. Fernie Valentina Toneva 《Cellular and molecular life sciences : CMLS》2013,70(4):689-709
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Lewis AC Carslaw N Marriott PJ Kinghorn RM Morrison P Lee AL Bartle KD Pilling MJ 《Nature》2000,405(6788):778-781
Volatile organic compounds play a central role in the processes that generate both urban photochemical smog and tropospheric ozone. For successful and accurate prediction of these pollution episodes, identification of the dominant reactive species within the volatile organic carbon pool is needed. At present, lack of resolution inherent in single-column chromatographic analysis limits such a detailed chemical characterization of the complex urban atmosphere. Here we present an improved method of peak deconvolution from double-column (orthogonal) gas chromatography. This has enabled us to isolate and classify more than 500 chemical species of volatile organic compounds in urban air, including over 100 multi-substituted monoaromatic and volatile oxygenated hydrocarbons. We suggest that previous assessments of reactive carbon species may therefore have underestimated the contribution made by volatile organic compounds to urban pollution, particularly for compounds with more than six carbon atoms. Incorporating these species in predictive models should greatly improve our understanding of photochemical ozone yields and the formation of harmful secondary organic aerosols. 相似文献
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Keren K Pincus Z Allen GM Barnhart EL Marriott G Mogilner A Theriot JA 《Nature》2008,453(7194):475-480
The shape of motile cells is determined by many dynamic processes spanning several orders of magnitude in space and time, from local polymerization of actin monomers at subsecond timescales to global, cell-scale geometry that may persist for hours. Understanding the mechanism of shape determination in cells has proved to be extremely challenging due to the numerous components involved and the complexity of their interactions. Here we harness the natural phenotypic variability in a large population of motile epithelial keratocytes from fish (Hypsophrys nicaraguensis) to reveal mechanisms of shape determination. We find that the cells inhabit a low-dimensional, highly correlated spectrum of possible functional states. We further show that a model of actin network treadmilling in an inextensible membrane bag can quantitatively recapitulate this spectrum and predict both cell shape and speed. Our model provides a simple biochemical and biophysical basis for the observed morphology and behaviour of motile cells. 相似文献
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