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24篇 您的检索式:作者名="VALDERRAMA J C"
    题名 作者 年代 出处 被引量
1Application of two sites non-equilibrium sorption model for the removal of Cu(II)onto grape stalk wastes in a fixed-bed column显示文摘FLORIDO A VALDERRAMA C ARE VALO J A 2010Chemical Engineering Journal2010,156,2:1
2Kinetic study of acid red 'dye' removal by activated carbon and hyper-cross-linked polymericsorbents Macronet Hypersol MN200 and MN300显示文摘VALDERRAMA C CORTINA J L FARRAN A 0,,03:1
3The simultaneous analysis of total nitrogen and total phosphorus in natural waters显示文摘Valderrama J C 1981Marine Chemistry1981,10,:1
4Langerhans'cell histiocytosis 显示文摘Leonidas J C Guelfguat M Valderrama E 2003Lancet2003,361,9365:1
5The simultaneous analysis of Total,nitrogen and total phosphorus in natural waters显示文摘VALDERRAMA M J C 1981Marine Chemistry1981,10,:1
6On the numerical expansion of a second order stochastic process 显示文摘Gutierrez R Ruiz J C Valderrama M J 1992Applied Stochastic Models and Data Analysis1992,,8:1
7Application of two sites non-equilibrium sorption model for the removal of Cu(11) onto grape stalk wastes in a fixed-bed column显示文摘FLORIDO A VALDERRAMA C AREVALO J A 2010Chemical Engineering Journal2010,156,:1
8Vapor-liquid equilibrium in low pressure water+congener mixtures显示文摘FAUNDEZ C A URBINA F A VALDERRAMA J O 2009Korean J Chem Eng2009,26,5:1
9The simultaneous analysis of total nitrogen and total phosphorus in natural waters显示文摘Valderrama M J C 1981Mar Chem1981,10,:1
10The simultaneous analysis of total nitrogen and total phosphorus in natural waters显示文摘VALDERRAMA J C 1981Marine Chemistry1981,10,:1
11Kinetics of sorp- tion of polyaromatic hydrocarbons onto granular activated carbon and Macronet hyper-cross-linked polymers (MN200) 显示文摘Valderrama C Cortina J L Farran A 2007Journal of Colloid and Interface Science2007,310,:1
12The simultaneous analysis of tatal nitrogen and phosphorus in natural waters显示文摘Valderrama J C 1981Marine Chemistry1981,,:1
13Application of two sites non-equilibrium sorption model for the removal of Cu(Ⅱ) onto grape stalk wastes in a fixed-bed column显示文摘Florido A Valderrama C Arévalo J A 2010Chemical Engineering Journal2010,156,2:1
14Helicobacter pylori vacA s1a and s1b alleles from clinical isolates from different regions of Chile show a distinct geographic distribution显示文摘AIM: To establish the most common vacA alleles in Helicobacter pylori(H pylori) strains isolated from Chilean patients and its relationship with gastritis and gastroduodenal ulcers.METHODS: Two hundred and forty five H pylori clinical isolates were obtained from 79 biopsies from Chilean infected patients suffering from gastrointestinal diseases. An average of 2-3 strains per patient was isolated and the vacA genotype was analyzed by PCR and 3% agarose electrophoresis. Some genotypes were checked by DNA sequencing.RESULTS: The most prevalent vacA genotype inChilean patients was s1b m1 (76%), followed by s1a m1 (21%). In contrast, the s2 m2 genotype was scarcely represented (3%).The s1b m1 genotype was found most frequently linked to gastropathies (P<0.05) rather than ulcers. Ulcers were found more commonly in male and older patients. Curiously, patients living in cities located North and far South of Santiago, the capital and largest Chilean city, carried almost exclusively strains with the s1b m1 genotype. In contrast, patients from Santiago and cities located South of Santiago carried strains with either one or both s1a m1 and s1b m1 genotypes.Regarding the s2 m2 genotype, comparison with GenBank sequences revealed that Chilean s2 sequence was identical to those of Australian, American, and Colombian strains but quite different from those of Alaska and India.CONCLUSION: Differences in geographic distribution of the s and m vaccA alleles in Chile and a relationship of s1b m1 genotype with gastritis were found. Sequence data in part support a hispanic origin for the vacA genotype.Asymmetric distribution of genotypes s1b m1 and s2 m2recedes H Pyloristrain distribution in Spain and Portugal.MI Díaz A Valdivia P Martínez JL Palacios P Harris J Novales E Garrido D Valderrama C Shilling A Kirberg E Hebel J Fierro R Bravo F Siegel G Leon G Klapp A Venegas 2005World Journal of Gastroenterology2005,11,40:1
15Kinetics of sorption of polyaromatic hydrocarbons onto granular activated carbon and Macronet hyper-cross-linked polymers ( MN200 ) 显示文摘Valderrama C Cortina J L Farran A 2007Journal of Colloid and Interface Science2007,310,1:1
16The simultaneous analysis of total nitrogen and total phosphorus in natural waters显示文摘VALDERRAMA J C 1981Marine Chemistry1981,10,:1
17Kinetic evaluation of phenol/aniline mixtures adsorption from aqueous solutions onto activated carbon and hypercrosslinked polymeric resin (MN200)显示文摘VALDERRAMA C BARIOS J I CAETANO M 2010Reactive and Functional Polymers2010,70,1:1
18Evaluation of Hyper-cross-linked Polymeric Sorbents ( Macronet MN200 and MN300 ) on Dye ( Acid red 14 ) Removal Process 显示文摘Valderrama C Cortina J L Fanan A 2008Reactive&Functional Polymers2008,68,3:1
19Langerhans' cell histiocytosis显示文摘Leonidas J C Guelfguat M Valderrama E 2003Lancet2003,361,9365:1
20The simultaneous analysis of total nitrogen and total phosphorus in natural waters显示文摘Valderrama J C 1981Mar Chen1981,10,:1
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