Crop uptake and extractability of cadmium in soils naturally high in metals at different ph levels
Chemical speciation and extractability of zn, cu and cd in two contrasting biosolids amended clay soils
... application to agriculturalland, incineration, land reclamation, landfill, forestry and application to ‘dedicated’ land (Matthews, 1992).Dumping at sea has been prohibited in many countriesincluding ... data are discussed in relation topotential plant uptake of metals and environmental riskassociated with increased levels of mobile heavy metals in soils. 2. Materials and methods2.1. Soil incubationSamples ... of two soils and four application rates of biosolids (including unamended controls). Linear and quadratic contrasts were calculated for the four appli-cation rates of biosolids and for the interaction...
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Immobilization and phytoavailability of cadmium in variable charge soils effect of lime addition
... extractability of cadmium in soils naturally high in metals at different pH levels. Commun. Soil Sci. Plant Anal. 26, 2123–2142.Soon Y K 1981 Solubility and sorption of cadmium in soils amended ... equivalents and phosphatecontent. At low levels of Cd addition, the solubility of Cd was controlled by adsorption that was enhancedby increasing pH resulting from the sludge addition. At high levels of ... Sabey B R and Lindsay W L 1978 In uence of pH, phosphorus, cadmium, sewage sludge, and incubation time onthe solubility and plant uptake of cadmium. J. Environ. Qual. 7,286–290.Temminghoff E 1998...
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Báo cáo khoa học: Fatty acid composition of chylomicron remnant-like particles influences their uptake and induction of lipid accumulation in macrophages pot
... accumulation in avariety of macrophage types, including the murinemacrophage cell line J774 [17], mouse peritoneal macro-phages [18], primary human monocyte-derivedmacrophages [3,4] and macrophages ... than palmitate in macrophages and that 7.5 times more oleate thanpalmitate is transferred from these cells to lymphocytes in coculture, indicating that macrophage metabolism of oleate is more ... monoun-saturated fatty acids are taken up more rapidly by macrophages than thoseenriched in n)6orn)3 polunsaturated fatty acids, and that the faster uptake rate results in greater lipid accumulation...
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CHARACTERISTICS AND DISTRIBUTIONS OF NITROUS OXIDE-PRODUCING DENITRIFYING FUNGI IN NATURAL ENVIRONMENTS
... of NO3-NThe soil pretreated with chloramphenicol or cycloheximide and intact soil( 3g as dry wt) was incubated at 30℃with 3ml of 0.1mole phosphate buffer (pH= 5.0) containing 1mgN of nitrate ... described above, 3ml of 0.1M phosphate buffer (in situ pH of each sample), containing potassium nitrate orsodium nitrite and sodium fumarate at various concentrations, and 0.1mg of the same antibiotic ... final products of fungal denitrification in these soils and sediments were determined, and the distribution of denitrifying fungi in natural system was estimated.MaterialsTea field soils Soils...
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Present Status and Feature of Groundwater Contamination by Nitrate-nitrogen in Kumamoto City
... obvious in the groundwater of these areas (Kumamoto City Water Works, 2006). The drinking water standard and ground water quality standard of nitrate nitrogen (NO3-N) in Japan were both determined ... (1983). Hydrochemical investigation of ground water in the Kumamoto plain. Ind. Water, 296, 27-43. Nas B. and Berktay A. (2006). Groundwater contamination by nitrates in the city of Konya, (Turkey): ... structure and groundwater flow in the second aquifer (the third aquifer in Kinbo volcano area) in Kumamoto city with sampling points. The allows indicate groundwater flow. Location and grouping of...
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Tài liệu Socio-demographic characteristics and sexual health related attitudes and practices of men having sex with men in central and southern Malawi doc
... understanding MSM socio-demographic characteristics, sexual health related attitudes and practices. It is envisaged that this information may encourage research and programmatic interest in efforts ... characteristics and sexual health related attitudes and practices of men having sex with men in central and southern MalawiP.R.T. NTATA1, A.S. MUULA2* and S. SIZIYA31Department of Sociology, ... acknowledgement of the practice of MSM within prison environments. The prevalence of MSM outside prison and jails in Malawi remains understudied and under-appreciated. This exploratory study aimed at understanding...
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Tài liệu Báo cáo khoa học: Cobalamin uptake and reactivation occurs through specific protein interactions in the methionine synthase–methionine synthase reductase complex docx
... following 5 min of incubation at 37 °C of theenzyme with all other components. Following 10 min of incubation at 37 °C, the reaction was quenched by theaddition of 0.2 mL of a solution containing 11 ... and incubated at 37 °C for3 min. The reaction was initiated by the addition of 1 mmhomocysteine, and then further incubated at 37 ° C for10 min. The reaction was quenched at 90 °C for 3 min, ... difla-vin reductases and also subdomains of MSR; (b) theextent of reductive remethylation of hMS catalysed bythe different redox states of MSR; and (c) the ability of structurally related diflavin...
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Tài liệu Báo cáo khoa học: Cell surface heparan sulfate proteoglycans Target and partners of the basic ®broblast growth factor in rat Sertoli cells pptx
... were treated with sodium chlorate tocompletely inhibit sulfatation of proteoglycans and, in consequence, abolish bFGF binding to HSPG.Our previous studies indicated that in immature rat Sertolicells, ... theirheparan sulfate chains [34].Sodium chlorate is an inhibitor of ATP sulfurylase and hence of the production of phosphoadenosine phospho-sulfate (PAPS), the active s ulfate donor for s ulfotrans-ferases. ... consisted of a denaturating step (at 94 °Cfor1min),an annealing step (at 6 0 °C for 30 s) and an extension step (at 72 °C for 1 min) then a ® nal elongation step (at 72 °Cfor 10 min) in ROBOCYCLERÒ...
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Báo cáo khoa học: Molecular cloning and characterization of methylenedioxy bridge-forming enzymes involved in stylopine biosynthesis in Eschscholzia californica doc
... theamount of nandinine produced was estimated by using acalibration curve of (S)-scoulerine (pmol versus peak area) at 285 nm. To determine the kinetic parameters of CYP719A3, the amount of nandinine ... [7].Analysis of substrate specificity showed thatCYP719A2 and CYP719A3 catalyzed methylenedioxybridge-formation only in ring A of their substrates, e.g.the conversion of scoulerine to nandinine (Fig. ... estima-ted by using the calibration curve of (S)-scoulerine (pmolversus peak area) and the absorption ratio of (S)-scoulerine and (S)-nandinine at 285 nm (1.00 : 0.93). The data werefitted to...
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