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| 1 | 不同施肥处理对水稻根表铁和砷形态的影响显示文摘采用XAFS研究盆栽试验砷污染土壤中添加不同肥料后,苗期水稻根表铁膜和砷的矿物学特征.Fe的K边EXAFS谱表明,铁膜主要由2-line水铁矿组成,还有少部分针铁矿和赤铁矿等晶体矿;As的EX-AFS谱显示,除了KNO3和K2SO4处理外,其余处理的铁膜中砷以三价砷为主.KNO3处理显著减少了水稻根表铁膜的形成,而且抑制了水稻对砷的吸收.不同的肥料可以影响铁膜中砷的存在形态. | 陈学萍 朱永官 洪米娜 王新军 Gault A G Charnock J M Polya D A | 2008 | 环境化学2008,27,2: | 16 |
| 2 | Contrasting sorption behaviours affecting groundwater arsenic concentration in Kandal Province,Cambodia显示文摘Natural arsenic (As) contamination of groundwater which provides drinking water and/or irrigation supplies remains a major public health issue,particularly in South and Southeast Asia.A number of studies have evaluated various aspects of the biogeochemical controls on As mobilization in aquifers typical to this region,however many are predicated on the assumption that key biogeochemical processes may be deduced by sampled water chemistry.The validity of this assumption has not been clearly established even though the role of sorption/desorption of As and other heavy metals onto Fe/Mn (hydr) oxides is an important control in As mobilization.Here,selective chemical extractions of sand-rich and clay-rich sediments from an As-affected aquifer in Kandal Province,Cambodia,were undertaken to explore the potential role of partial re-equilibrium through sorption/desorption reactions of As and related solutes (Fe,Mn and P) between groundwater and the associated solid aquifer matrix.In general,groundwater As is strongly affected by both pH and Eh throughout the study area.However,contrasting sorption behaviour is observed in two distinct sand-dominated (T-Sand) and clay dominated (T-Clay) transects,and plausibly attributed to differing dominant lithologies,biogeochemical and/or hydrogeological conditions.Sorption/desorption processes appear to be re-setting groundwater As concentrations in both transects,but to varying extents and in different ways.In T-Sand,which is typically highly reducing,correlations suggest that dissolved As may be sequestered by sorption/re-adsorption to Fe-bearing mineral phases and/or sedimentary organic matter;in T-Clay Eh is a major control on As mobilization although binding/occlusion of Fe-bearing minerals to sedimentary organic matter may also occur.Multiple linear regression analysis was conducted with groups categorised by transect and by Eh,and the output correlations support the contrasting sorption behaviours encountered in this study area.Irrespective of transect,however,the key biogeochemical processes which initially control As mobilization in such aquifers,may be “masked” by the re-setting of As concentrations through in-aquifer sorption/desorption processes. | Laura A. Richards Maria J. Casanueva-Marenco Daniel Magnone Chansopheaktra Sovann Bart E. van Dongen David A. Polya | 2019 | Geoscience Frontiers2019,10,5: | 2 |
| 3 | Cloning of p27Kip1,a cyclin-dependent kinase inhibitor and a potential mediatorof extracellular antimitogenic signals显示文摘 | POLYA K LEEMONGHONG ERDJUMENT BROMAGE H | 1994 | Cell1994,78,1: | 1 |
| 4 | p27kipl,a eyelin-CDK in hibitor, links transforming growth factor-beta and contact inhibition to cell cycle arrest显示文摘 | Polya K Kato J Soloman MJ | 1994 | Genes Bey1994,8,1: | 1 |
| 5 | Rice is a major exposure route for arsenic in Chakdaha block, Nadia district, West Bengal, India: A probabilistic risk assessment 显示文摘 | Mondal D Polya D A | 2008 | Ap- plied Geochemistry2008,23,11: | 1 |
| 6 | Arsenic hazard in shal- low Cambodian groundwater 显示文摘 | Polya D A Gault A G Diebe N | 2005 | Mineralogical Magazine2005,69,5: | 1 |
| 7 | Efficiency of hydrothermal ore formation and the Panasqueira W-Cu (Ag)-Sn vein deposit显示文摘 | Polya D A | 1988 | 333: 838-8411988,333,: | 1 |
| 8 | Rice is a major exposure route for arsenic in Chakdaha block, Nadia district, West Bengal, India: A probabilistic risk assessment显示文摘 | Debapriya Mondal David A. Polya | 2008 | Applied Geochemistry2008,,11: | 1 |
| 9 | Particle size distribution of minerals phases and metals in dusts collected at different work-phces显示文摘 | Hlavay J Polya K K Wesemann G | 1992 | J Anal Chem1992,344,: | 1 |
| 10 | On the ratio of consecutive eigenvalues显示文摘 | PAYNE L E POLYA G WEINBERGER H F | 1956 | J Math and Phis1956,35,: | 1 |
| 11 | Purification and characterization of wheat and pine small basic protein substrates for plant calcium-dependent protein kinase 显示文摘 | G M Polya | 1992 | Protein Structure and Molecular Enzymology1992,1120,3: | 1 |
| 12 | On the eigenvalues of vibrating membranes显示文摘 | POLYA G | 1961 | Proc London Math Soc1961,11,3: | 1 |
| 13 | On the ratio of consecutive eigenvalues显示文摘 | Payne L E Polya G and Weinberger H F | 1956 | J Mathand Physics1956,35,: | 1 |
| 14 | Cloning of p27kipi, a cyclin-dependent kinase inhibitor and a potential mediator of extracellular antimitogenic signals 显示文摘 | Polya K Lee MH Erdjument BH | 1994 | Cell1994,78,1: | 1 |
| 15 | Ubereine Aufgabe der Wahrscheinlichkeitsrechnung betreffend die Irrfahrt im Strassen- netz显示文摘 | Polya G | 1921 | Math Ann1921,84,: | 1 |
| 16 | (ber einen Zusammen- hang zwischen der Konvergenz yon Polynomfolgen und der Verteilung ihrer Wurzeln 显示文摘 | POLYA G LINDWART E | 1914 | Rend Pal1914,37,: | 1 |
| 17 | Comprehensive heterocyclic chemistry显示文摘 | Polya J A | 1983 | Pergamon Oxford1983,1,5: | 1 |
| 18 | Analysis of fountain solutions for anionic components,including alkylbenzenesulfonates,carboxylat es and polyphosphates,by a combination of ion-exchange and ion-exclusion chromatography and inductively coupled plasma atomic emission spectrometry显示文摘 | BEWSI-IER A D POLYA D A LYTHGOE P R | 2001 | Journal of Chromatography A2001,,920: | 1 |
| 19 | Activation of wheat embryo calcium- regulated protein kinase by unsaturated fatty acids in the presence and absence of calcium 显示文摘 | Lucantoni A Polya G M | 1987 | FEBS Lett1987,221,1: | 1 |
| 20 | Selective inhibition of cyclic AMP-dependent protein kinase by amphiphilic triterpenoids and related compounds显示文摘 | Wang B H Polya G M | 1996 | Phytochemistry1996,41,: | 1 |