effects of various synthetic soil amendments on s

... Akins and Lewis (1976) added DSMA-74As to a soil system and measured a loss of 74As The loss of 74As from the reduced soil system was attributed to the gaseous evolution of arsine, though no arsine ... that in the CCA and ASC soils (Table 1) 3.2 Effects of soil amendments on soil pH, DOC, and water soluble As Addition of MSW, BS composts or PR had no significant effects on the soil pH (P < 0.01) ... acid digestion 2.4 Speciation of soluble As in soil solution Speciation of As in the soil solution was performed at the time of plant harvest (12 weeks) Approximately 150 g of each soil at field...

Ngày tải lên: 16/03/2014, 00:07

... Environ Sci Technol DISCUSSION In this research, the aims were to study the organic fertilization effects on the status of a sandy soil and its relationships to other edaphic characteristics (physical, ... Ramos C (1993) Simple determination of nitrate in soils by second-derivative spectroscopy J Soil Sci 44:633-639 Stevenson JF (1984) Humus Chemistry, genesis, composition, reactions John Wiley & sSn, ... which is less and less possible with the strong pressure on the cultivable soils, the manures offer alternatives more interesting for a continuous and long-term exploitation of the fertility of the...

Ngày tải lên: 23/03/2014, 21:20

... allowed one to estimate the content of various CYP11A1 versions with an accuracy of ± 50% Assays of cholesterol side-chain cleaving activity of various CYP11A1 versions Mitochondria isolated ... reductase were generous gifts from V M Shkumatov (State University of Belarus, Minsk) DNAs and plasmids Yeast expressing the shuttle vector pYeDP1-8/2 (pYeDP) [13] was used for expression of cDNAs ... pellets were dissolved in SDS/PAGE buffer The content of CYP11A1 was estimated in Triton X-100 soluble and insoluble fractions by Western blot analysis Western blot analysis To estimate the contents...

Ngày tải lên: 31/03/2014, 07:20

... of nitrogen forms as a result of the different treatments, but also the effects on other minor, heavy metals and soil formation processes It seems that undisturbed forest soils are more resistant ... in Soil Environments, 2nd edn Soil Sci Soc Am (book series) 1, 551-624 Farina MPW, Channon P (1988) Acid sub -soil amelioration II Gypsum effects on growth and subsoil chemical properties Soil Sci ... and biomass harvest (Andersson and Persson, 1988) High A concentrations in the soil solution affect plant uptake of basic cations, P and root elongation or seedling growth (Hutchinson et al,...

Ngày tải lên: 08/08/2014, 18:21

... hernias were included A p value 

Ngày tải lên: 08/06/2016, 00:06

... flat sediment (Cheong, 2000) The purpose of this study is to evalluate the effects of stranded oil on tidal flat ecosystems with special emphasis on the relationship between seawater infiltration ... hydrocarbons, evaluating acute, chronic and residual toxicity to organisms, and assessment of subsistent food contamination The primary mechanisms by which petroleum hydrocarbons are deleterious to ... flats may result in tremendous damages on tidal flat ecosystem Toxicological risk of pollutants on ecosystems is evaluated by their fate (its transfer and transformation in the environment) and effects...

Ngày tải lên: 05/09/2013, 08:40

... are possible in ve positions and three substitutions are possible in four positions) These positions include positions 10 and 64 Interestingly, the completely conserved positions and those exhibiting ... of the active site The availability of crystal structures of TIMs from 21 sources and the large database of TIM sequences from various sources facilitate an analysis of mutational effects Most ... (1996) Species-specic inhibition of homologous enzymes by modication of nonconserved amino acids residues The cysteine residues of triosephosphate isomerase Eur J Biochem 241, 114120 Gokhale RS,...

Ngày tải lên: 18/02/2014, 11:20

... acid residues 163–168 of VVA1 The products of this second PCR were sequenced and used to design the specific antisense primers GSP-1, corresponding to amino acid residues 40–47 of VVA1, and GSP-3, ... arrows represent b-strands, and the rods represent a-helices Secondary structural elements of VVA1-NTD with PROF scores below are shown in light orange The completely conserved residues are shaded ... GSP-3 was used along with the sense primer AP-2 to obtain the 5¢-end of the VVA1 cDNA The products of the second PCR were used to design GSP-2 and GSP-4 specific sense primers corresponding to...

Ngày tải lên: 19/02/2014, 06:20

... quantities of AA in phospholipid classes and subclasses were determined after base hydrolysis by NICI-GC/MS as described above SA in phospholipid classes and subclasses were calculated and expressed ... as the means ± SEM of separate experiments Statistics (P-values) were obtained from Student s t-test for paired samples Notations used on figures and legends are for P < 0.05 [3H]AA labeling of ... Connolly, S. , Gensmantel, N.P., Hallam, C., Jackson, C.G., Primrose, W.U., Roberts, G.C., Robinson, D.H & Slaich, P.K (1992) Design and synthesis of some substrate analogue inhibitors of phospholipase...

Ngày tải lên: 22/02/2014, 07:20

... salt-induced dissociation of CDase was investigated using a stoppedow apparatus The rate constant of dissociation (kd) from dodecamers into dimers was 7.99 s) 1, and the dissociation process was completed ... dimeric units The results obtained in this study show that the association/dissociation process of dodecameric CDase I-5 was modulated by pH and salt concentration Dissociation of wild-type CDase I-5 ... investigated by site-directed mutagenesis Results pH-dependent dissociation/association of CDase I-5 To investigate the effect of pH on the dissociation of dodecameric CDase I-5, sedimentation...

Ngày tải lên: 07/03/2014, 12:20

... estimated a supply response of 0.13 for US broiler production Because of the lack of supply elasticity estimates across regions, we consider two difference scenarios The first scenario is a long-run ... their analysis We use a value of 5.0 in conducting a sensitivity analysis of our results The system of nonlinear equations is solved using the CNS solver in GAMS 16 domestic price for each of the ... products is limited Therefore, we assumed an elasticity value of 0.5 for all regions Based on the assumed values of the elasticities of substitution and the initial consumption budget shares, all...

Ngày tải lên: 08/03/2014, 09:20

... does not seem to have any significant effect on the dissociation [19] and association [20] rate constants, suggesting pH-independent properties for the liganded hemoglobin This suggestion is contrary ... rate constant and a lower 1.40 ± 0.11 times association rate constant in the presence of NaCl with respect to the absence of NaCl Discussion It has long been known that the binding of various heterotropic ... functional changes in response to subtle changes in the ionic strength, the concentration of allosteric effectors Summaries of our new and previous results [18] for the a and b subunits within...

Ngày tải lên: 16/03/2014, 14:20

... number of assumptions To assess the robustness of the simulation (that is, to see how sensitive the outcome is to varying the assumptions), we run a number of simulations varying each of the ... relocations from the city to the suburbs—largely northern New Jersey Because these are aggregate loss estimates, the issue of distributional impacts is not addressed 12 Measuring the Effects of the September ... benefits, unemployment risk, and the victim s share of consumption An additional sum is included in the compensation award for noneconomic losses In calculating a victim s gross earnings losses,...

Ngày tải lên: 19/03/2014, 11:20

... costs, with a modest contribution of about 10 basis points from the cost of equity funding Business lending There can be considerable variation in interest rates across business loans, as banks ... This has reflected both increases in the costs of some of the components of debt funding as well as the shift towards more expensive sources of debt Deposits Competition for deposits in Australia ... upward pressure on banks’ funding costs, as still nearly one-fifth of bonds outstanding were issued at lower spreads prior to mid 2008 As the repricing of maturing bonds continues, it is estimated...

Ngày tải lên: 29/03/2014, 01:20

... following conclusions: The results of the SEM analyses demonstrated that a strong etching process of the plasma caused the sterilizing effect on the bacteria, when they were exposed to this low-temperature ... (FL1, SYTO 9) and red (FL3, PI) fluorescence versus side scatter RESULTS WITH DISCUSSION Plasma characteristics and activation of carriers Prior to experiments performed on bacteria characteristic ... distribution of cells across the entire carrier and the formation of thin layer of cells on the carrier s surface The activation process was also performed by oxygen plasma treatment for s Plasma...

Ngày tải lên: 18/05/2014, 20:29

... directions umn) for movements measures (top (τL; middle column), and magnitudes of maximum time constants ( S left column), colRegressions Regressions between measures of variability (MeanSD) and short-term ... iΔt)||2 Sk (Sk − S* ) Fixed Point (S* ) Poincare Section Figure tions Schematic representations of dependent measure calculaSchematic representations of dependent measure calculations A: Example of ... increase the risk of tripping The variability of step kinematics has also been strongly linked with falls by older adults In particular, cross-sectional and prospective studies have consistently linked...

Ngày tải lên: 19/06/2014, 08:20

... tests, subjective ratings of fear of falling and laboratory assessments that investigate reflexive movements The aim of the present study was to explore the effects of STN stimulation alone on ... DBS OFF and ON measurements In every test situation, spontaneous sway was recorded for 30 seconds (quiet stance) before each subject was exposed to vibratory stimulation on the calf muscles during ... seconds BBS: The Berg Balance Scale, best possible score is 56 points [30-32] FES (S) : Falls -Efficacy Scale, Swedish version Best possible total score is 130 points [38] (n = 8) Two patients...

Ngày tải lên: 19/06/2014, 08:20

... perfect symmetry Statistics Repeated-measures analysis of variance (ANOVA) tests were conducted to test our hypothesis comparing OG vs OGR and TM vs TMR conditions using SAS® software (SAS, Cary, ... References Heart Disease and Stroke Statistics- 2009 update, American Heart Association [http://www.americanheart.org/statistics] Knutsson E, Richards C: Different types of disturbed motor control ... ankle robot.) Conclusions In conclusion, the present data suggests that many individuals with hemiparesis can potentially wear an exoskeleton robot safely and with minimum disruption of their unloaded...

Ngày tải lên: 19/06/2014, 08:20

... This study quantifies changes in kinematics and muscle activation patterns due to powered ankle assistance within a single test session following a single session of training Future studies are ... results section are from the second day of testing after the training session was completed (see Methods) With the exception of ankle joint kinematics, all differences in conditions showed similar ... Values are means ± SE Data are unitless because of normalization See METHODS for calculations * Indicates a p-value of less than 0.05 showing significant differences between conditions Statistical...

Ngày tải lên: 19/06/2014, 10:20

... pairs of periods: one, visual-stimulusmotion versus no-visual-stimulus-motion, and two, vection versus no-vection Here, the visual-stimulus-motion represents motion of visual image, while no-visual-stimulus-motion ... terms of average position and averaged-SD were subsequently compared across different periods: no-vection versus vection during visual stimulus rotation, as well as across successive 10 s periods ... simulated rotation Discussion Our results suggested that visual motion in itself affects postural control Postural sway, measured in the present study in terms of COP and head position, was signifiTable...

Ngày tải lên: 19/06/2014, 10:20