synthesis of zsm 5 zeolites in the presence of tetrapropylammonium ions

... growth of the WO3 nanowires With the addition of different inorganic salts, the compositions and the corresponding properties of the solution are different in the hydrothermal conditions The changes ... in the surrounding conditions would affect the crystalline phase, and further affect the morphologies and dimensions of the WO3 nanocrystals As the reaction mechanism and hydrothermal conditions ... NaNO3 N NaSO4 On the other hand, Fig 6e exhibited the hexagonal reflections (JCPDS card 35- 1001) in the presence of K2SO4 Combined with the TEM results, it could be concluded that the inorganic salts...

Ngày tải lên: 20/03/2014, 13:04

... (C), in the presence of 100 lM MPP+ (D), in the presence of 200 lM MPP+ (E), in the presence of 100 lM MPTP and 50 lM dopamine (F), in the presence of 200 lM MPTP and 50 lM dopamine (G), in the presence ... solid line), in the presence of 100 lM neurotoxin ( , dotted line), in the presence of 200 lM neurotoxin ( , dotted line) and in the presence of neurotoxin and 50 lM dopamine (h, dashed line) • 1692 ... marginally to 95. 5 h from 86.8 h in the presence of MPTP alone The apparent rate constant of aggregation in the presence of dopamine was significantly higher (0. 25 h)1) than in the presence of MPTP alone...

Ngày tải lên: 14/02/2014, 19:20

... self-financing portfolio if and only if certain integral equations of the first kind (the “hedging equations”) have solutions Furthermore, the integral operators appearing in these equations (the “hedging ... apply part of the present theorem We now turn to the issue of so called “martingale modelling”, and remark that one of the main morals of the martingale approach to arbitragefree pricing of derivative ... propositions which explain the interrelations between the dynamics of the forward rates, the bond prices and the short rate of interest In Section we define our measure-valued portfolios with their...

Ngày tải lên: 16/02/2014, 02:20

... (2002) Structural investigation of the binding of a herpesviral protein to the SH3 domain of tyrosine kinase Lck Biochemistry 41, 51 20 51 30 FEBS Journal 276 (2009) 656 0– 657 5 ª 2009 The Authors Journal ... phosphorylation of VpU residues S53 and S57 by casein kinase type II [62] These two serines are located in the interhelical linker, which retains a high degree of structural flexibility upon the addition of ... undetectable in the presence of Mn2+ The solvent-exposed C-terminus of VpUcyt probably pointed away from the surface of the micelle The three amide cross-peaks originating from the hydrophobic...

Ngày tải lên: 18/02/2014, 06:20

... product in the presence of stearate (Fig 5B) In line with earlier observations [6], no autocleavage of plasmin was seen during the activity assay in the presence of enzyme substrate (Fig 5, insets) ... Fig Kinetic parameters of plasmin in the presence of fatty acids The values of kp and Km were determined from the amidolytic assay of plasmin activity, according to Model I, in the presence of ... catalytic action of plasmin in the presence of stearate The p-nitroaniline (P) released in the course of hydrolysis of 40 lM Spectrozyme-PL by 20 nM plasmin in the presence of 1 15 lM stearate is shown...

Ngày tải lên: 18/02/2014, 17:20

... activity of the reaction intermediate, FVaint This facilitated the determination of loss of FVa cofactor activity during the initial stage of inactivation and minimized the in uence of the k306 ... ramifications There are two possible molecular explanations for the inhibition of the Arg506 cleavage by heparin: (a) direct binding of heparin to FVa close to the Arg506 site; (b) binding of heparin ... Kinetic analysis of the inactivation of FVa by APC in the presence and absence of heparin Initial rates of FVa inactivation were determined at various concentrations of FVa in the presence (d) or...

Ngày tải lên: 19/02/2014, 13:20

... consistent with titration of the catalytic histidine, H438(440) The persistence of activity in the presence of the protonated form of the catalytic histidine is inconsistent with the generally accepted ... form of BuChE, as indicated In each panel, the solid circles indicate the measured kcat values, the solid squares indicate the measured bkcat values, and the lines are the result of fitting the ... excess-substrate binding appears to involve the intricate interplay of a variety of residues in the active site pH dependence of A328W Fig pH dependence for the turnover number (kcat) in the absence of excess...

Ngày tải lên: 20/02/2014, 23:20

... report the crystal structure of the intact glutaminase under four different conditions: in the absence of the additives (referred to as N); in the presence of Tris (referred to as T); in the presence ... determined the F structure containing the truncated region of the C-terminal domain; however, we failed to determine the structure of the intact glutaminase because the crystals exhibited heavy twinning ... C-terminal domain in the T and TG structures suggests a revised F structure (PDB 3if5) There are disordered regions in the F ( 354 -403 and 449 456 aa), N ( 354 -376, 3 95- 401 and 446- 456 aa), G ( 353 - 359 ,...

Ngày tải lên: 06/03/2014, 09:22

... 0. 15 0.20 0.24 0.14 0.18 0.21 1.33 ± 0. 15 Km (mM) b-Alanine 0. 25 0 .50 1.00 Taurine 0. 25 0 .50 Glycine 0. 25 0 .50 1.00 Lysine 0. 25 0 .50 Proline 0. 25 0 .50 1.00 1 .50 Serine 0. 25 0 .50 0.00 Alanine ... [21– 25] , and DGD° values in the presence of these osmolytes are given in Table However, DGD° values of RNase-A in the presence of alanine, serine, lysine, b-alanine, taurine and dimethylglycine ... efficiency in the presence of this group of osmolytes Interestingly, there is a linear relationship between DDGD° and Dlog(kcat ⁄ Km) in the presence of methylamines and sugar However, the slopes of the...

Ngày tải lên: 07/03/2014, 00:20

... These results are largely robust to including the proportion of Group pupils in the surrounding area as the explanatory variable, rather than the total number of Group pupils in the surrounding ... and if the remainder of the correlation reflects the effects of the past five years of schooling on academic performance, then one would expect that increasing attendance by 5. 1 percentage points ... correlated among these individuals at the margin of receiving treatment 34 We have also calculated Manski bounds on within-school externalities in the presence of selection into treatment, but these are...

Ngày tải lên: 22/03/2014, 15:20

... of p-amindinobenzamidine Figure 2B shows time courses for trypsinogen autoactivation in the presence of 100 lM p-amindinobenzamidine As seen in this figure, the presence of p-amindinobenzamidine ... (1 957 ) Role of calcium during the activation of trypsinogen by trypsin Arch Biochem Biophys 69, 4 75 4 85 33 Mares-Guia, M & Shaw, E (19 65) Studies on the active center of trypsin; the binding of ... (1993) The kinetics of enzyme systems involving activation of zymogens Bull Math Biol 55 , 56 1 58 3 40 Havsteen, B.H (1976) Kinetic studies of elementary steps in the interaction of chymotrypsin with...

Ngày tải lên: 23/03/2014, 13:20

... balance of linguistic and visual salience is needed in order to account for patterns of referring behavior In the remainder of this paper, we begin by presenting a brief discussion of the motivation ... balance of linguistic salience and visual salience Preliminary Results In order to investigate the hypotheses described above, we examined the performance of the models using hand-processed evaluations ... human-agent interactions in a wide variety of contexts that include visual objects of interest Such systems may benefit from a datadriven model of how collaborative pairs adapt their language in the presence...

Ngày tải lên: 24/03/2014, 03:20

... the parameter estimates obtained in the absence of the inhibitors (see above) In the case of gallamine investigated in the presence of MeCN, the calculation of the kinetic parameters was based ... AChEgallamine to hydrolyse ATCh is 1.7 25% of that of free AChE Inuence of MeCN on the inhibition of AChE The inhibition of AChE by tacrine, gallamine and compound was investigated in the presence of ... involvement of PAS in the processes of AD, the use of PAS inhibitors and dual-site inhibitors of AChE allows for the inhibition of the catalytic activity of the enzyme and also lowers the incidence of...

Ngày tải lên: 29/03/2014, 23:20

... (broken lines), either in the form of aggregates formed in the presence of Cu2+ [(i) and (iii)] or Zn2+ [(ii) and (iv)], or as fibrils formed in the presence of EDTA [(v) and (vi)] The amount of amyloid ... both the C-terminal and turn residues, possibly interfering with these regions This explains how an altered conformation in the N-terminal region upon metal binding can affect sections of the ... formed in the presence of a molar excess of divalent metal ions failed to attain the classic morphology of amyloid fibrils [37,46] The aggregates of Ab(1–40) and Ab(1–42) formed in the presence of a...

Ngày tải lên: 30/03/2014, 01:20

... on the melting of these crystallites, but can be changed by a chemical crosslinked network [5] The crosslinking influences on the softening point (Ts) of the PVC samples in comparing with the ... in the presence of phr of TMPTMA of the PVC crosslinked samples decreases with increasing concentration of TMPTMA up to 15 phr Therefore, in order to obtain PVC having the highest , 0.4 phr of ... improves the molecular mobility, melting and softening of PVC and a result, Ts decreases with increasing Table 1: Softening point of the PVC samples containing different concentrations of DAPC...

Ngày tải lên: 03/04/2014, 15:20

... be involved in recombi- nation events, leading, however, to the deletion of the hairpin-forming sequences (A Plyusnin, unpublished observations) The role of RNA folding in hantavirus recombination ... as nonpairing C/A bases in the minus-sense RNA Interestingly, in Puumala hantavirus, a hairpin-like structure formed by a highly conserved inverted repeat in the 3'-noncoding region of the S segment ... Journal 20 05, 2:12 Figure recombinant S RNA segments Checking of specificity of RT-PCRs for the wt and the Checking of specificity of RT-PCRs for the wt and the recombinant S RNA segments Lines 1–3:...

Ngày tải lên: 18/06/2014, 22:20

... be involved in recombi- nation events, leading, however, to the deletion of the hairpin-forming sequences (A Plyusnin, unpublished observations) The role of RNA folding in hantavirus recombination ... as nonpairing C/A bases in the minus-sense RNA Interestingly, in Puumala hantavirus, a hairpin-like structure formed by a highly conserved inverted repeat in the 3'-noncoding region of the S segment ... Journal 20 05, 2:12 Figure recombinant S RNA segments Checking of specificity of RT-PCRs for the wt and the Checking of specificity of RT-PCRs for the wt and the recombinant S RNA segments Lines 1–3:...

Ngày tải lên: 20/06/2014, 04:20

... impacts of CFO in coordinated schemes are hence worse than for point-to-point communications Because the frequency offset translates into the possibly destructive combination of the incoming streams, ... the energy toward the receiver P1 obtained by averaging the instantaneous SNR over the channel realizations and indicates the SNR gain over the single-user (SU) single-input-single-output (SISO) ... less intensive than their fully coordinated counterpart since they only require the local processing of the beamforming weights Besides the difficult exchange of the data and CSI between the transmit...

Ngày tải lên: 20/06/2014, 22:20

... argue that the building of the LUT using the considered steps requires a lot of time and an accurate resolution of the integral in (5) However, the LUT is computed once for all off-line and would ... distribution, γf , is the one associated with the minimum of the sum (24) (using the standard deviations of the AS estimates of distant eleˆ ments) The final mean AoA estimate, θm, is then the mean AoA ... eigenvalues, but by the product of the characteristic matrix and the eigenvectors En The estimated AoAs are then the arguments of the complex roots of the obtained pseudospectrum One drawback of the extended...

Ngày tải lên: 20/06/2014, 22:20

... the continuum of free states It is seen that the spectrum of confined states is very weakly influenced by the magnetic field That is a consequence of the strong confinement of the states in the ... For the kink-antikink case, the overlap between the states associated with each confinement region allows the formation of Landau orbits Therefore, in contrast to the single kink profile, the ... strong dependence of the states on the external field The localization of the states is reflected in the position dependence of the current The current in the ydirection is obtained using jy = ivF...

Ngày tải lên: 21/06/2014, 02:20