titration of oxalic acid with sodium hydroxide equation

... correlate with the binding affinity between GA and the receptor. The thermodynamic parameters obtained are in the range of those of other interactions with c-CD [15]. The interaction of GA with c-CD ... presence of 2.0 m M a-CD, b-CD, and c-CD. (B) The concentration dependence of c-CD on NMR spectra of 2.0 m M GA. The ratios of c-CD to GA are indicated. Y. Izutani et al. Interaction of gymnemic acid ... (1969) Antisweet activity of gymnemic acid A1 and its derivatives. Life Sci 8, 537–543. 3 Yoshioka S (1986) Inhibitory effects of gymnemic acid and an extract from the leaves of Zyzyphus jujuba on glucose...

Ngày tải lên: 16/03/2014, 14:20

Ngày tải lên: 07/07/2014, 00:20

... [21]. Hydrolysis of i-carrageenan was extended to 3 h. Small- scale (10 mg) hydrolysis of j-carrageenan was also carried out with various organic acids, including TFA, oxalic acid, maleic acid, phthalic acid, ... fumaric acid, citric acid, formic acid, succinic acid, and acetic acid, at 60 °C for 1.5 h. Reductive hydrolysis of j-carrageenan and agarose was carried out on a large scale with addition of 0.2 ... mechanism of acid hydrolysis of the 3,6-anGal-containing galactans. Results and Discussion Identification of a complete series of odd-numbered oligosaccharides resulting from mild acid hydrolysis of...

Ngày tải lên: 23/03/2014, 04:21

... phase with a k obs of 180ặs )1 and a much slower phase with a k obs of 13ặs )1 (Fig. 2B). Reactions of FNR with Fld. These processes were followed mainly at 600 nm to observe production of both ... data will be used together with the three-dimen- sional structure of E139K FNR to reveal the function of this versatile glutamic acid residue in the interaction of FNR with its substrates. MATERIALS ... side-chain of E139 might influence the properties of the flavin, assuming some of the functions carried out by E301 in the wild-type enzyme [22]. In this context, a special reactivity of the side-chain of...

Ngày tải lên: 31/03/2014, 08:20

... carcinostatic effects of ascorbic acid, we challenged the mice of seven experimental groups with 1.7 ì 10 -4 mol high dose concentration ascorbic acid after intraperitoneal administrating them with sarcoma ... concentration of ascorbic acids and the treated times. The cell migration of ras- NIH 3T3 cells was inhibited by the treatments of ascorbic acid (2.5 mM and 10 mM), 24 hours after treatments. Journal of ... at the 18 th day was 25.2 g of Group E, 24.8 g of Group F and 26 g of Group G respectively. These data showed that the treatments of ascorbic acid by challeng- ing with low dose before cancer...

Ngày tải lên: 18/06/2014, 15:20

... 1997, Hyalganđ (sodium Figure 3 A wrist/hand X-ray of a female with MSS, at chronological age of 18 weeks displaying wide phalanges & stippled epiphyses, showing bone age of 1.9 years [9]. Figure ... one of the oldest living patients with this rare disorder [3]. Given the natural history of the syndrome, one would anticipate that older subjects would suffer a great deal of pain as a result of ... High-Molecular-Weight Sodium Hyaluronate for the Treatment of Patients with Periarthritis of the Shoulder. Clinical Therapeutics 1995, 17(5):946. 18. Smith G, Myers S, Brandt K, Mickler E: Effect of Intra-articular...

Ngày tải lên: 20/06/2014, 04:20

... for blood, 1 milliliter (ml) of iopamidol-300 (Isovue-300 â ) dye was injected, verifying intra-articular spread of the dye (Figure 2). This was followed with an injection of 2 mL of 0.5% preservative-free ... one of the oldest living patients with this rare disorder [3]. Given the natural history of the syndrome, one would anticipate that older subjects would suffer a great deal of pain as a result of ... 1997, Hyalganđ (sodium Figure 3 A wrist/hand X-ray of a female with MSS, at chronological age of 18 weeks displaying wide phalanges & stippled epiphyses, showing bone age of 1.9 years [9]. Figure...

Ngày tải lên: 20/06/2014, 07:20

... rates of solutions to a nonlinear wave equation with boundary condition of memory type. Differential Integral Equations. 18, 583–600 (2005) 16. Messaoudi, SA, Soufyane, A: Boundary stabilization of ... quasilinear hyperbolic equations with dissipative terms. Funkcial Ekvac. 33, 151–159 (1990) 9. Nishihara, K: Exponentially decay of solutions of some quasilinear hyperbolic equations with linear damping. ... nonlinear wave equations of Kirchhoff type with some dissipation. Nonlinear Anal TMA. 65, 243–264 (2006). doi:10.1016/j.na.2004.11.023 13. Yamada, Y: On some quasilinear wave equations with dissipative...

Ngày tải lên: 20/06/2014, 21:20

... C 1 (T)+C t  0  u x  2 1  0 u 2 x dxds . which, by virtue of Gronwall’s inequality, (2.1) and (2.14), gives (2.19). Proof of Theorem 2.1 By Lemmas 2.1-2.3, we complete the proof of Theorem 2.1. 3 Global existence of solutions in H 2 For ... C 2 ( T ) . (3:22) The proof is complete. Proof of Theorem 3.1 By Lemmas 3.2-3.3, Theorem 2.1 and Sobolev’s embedding theorem, we complete the proof of Theorem 3.1. 4 Global existence of solutions in H 4 For ... dependence on the initial data of the solutions to the compressible Navier-Stokes equations with vacuum failed. The main reason for the failure at the vacuum is because of kinematic viscosity coefficient being...

Ngày tải lên: 20/06/2014, 22:20

... solvability of the fractional-o rder functional integrodifferential equations of neutral type with infinite delay. In the present paper, we will consider the following fractional integrodifferential equation ... in the Caputo sense. The aim of our paper is to study the solvability of 1.1 and present the existence of mild solution of 1.1 based on Kuratowski’s measures of noncompactness. Moreover, ... space of all X-valued continuous functions on J with the uniform norm topology. Let us recall the definition of Kuratowski’s measure of noncompactness. Definition 2.1. Let B be a bounded subset of...

Ngày tải lên: 21/06/2014, 05:20

... applications and extensions of Theorem 1.1 to the existence of homoclinic solutions of difference equations of following types: A Second-order discrete p-Laplacian equations of the form Δ 2 p u  k ... is properly cited. We study the existence of homoclinic solutions for semilinear p-Laplacian difference equations with periodic coefficients. The proof of the main result is based on Brezis-Nirenberg’s ... Section 2,wepresenttheproofofthemainresult and discuss the optimality o f the condition F 2 .InSection 3 , we give some examples of equations modeled by this kind of problems and present some...

Ngày tải lên: 21/06/2014, 11:20

... nonlinear wave equation with the p-Laplacian operator,” Electronic Journal of Qualitative Theory of Differential Equations, no. 11, pp. 1–13, 1999. 20 R. A. Adams, Sobolev Spaces, vol. 6 of Pure and ... evolution equations,” Journal of the Mathematical Society of Japan, vol. 30, no. 4, pp. 747–762, 1978. 14 Y. Ye, “Existence of global solutions for some nonlinear hyperbolic equation with a nonlinear dissipative ... viscoelasticity,” Journal of Differential Equations, vol. 44, no. 2, pp. 306–341, 1982. 3 D. D. Ang and P. N. Dinh, “Strong solutions of quasilinear wave equation with non-linear damping,” SIAM...

Ngày tải lên: 21/06/2014, 11:20

... introduction of the basic theory of impulsive differential equations, see Lakshmikantham et al. 1; for an overview of existing results and of recent research areas of impulsive differential equations, ... value problem of the theory of heat conduction with a nonclassical boundary condition,” Differential Equations, vol. 13, no. 2, pp. 294–304, 1977. 17 R. Yu. Chegis, “Numerical solution of a heat ... Introduction The theory of impulsive differential equations describes processes which experience a sudden change of their state at certain moments. Processes with such a character arise naturally and often, especially...

Ngày tải lên: 21/06/2014, 16:20

... inset of Figure 6b, which shows the log-scale of the DOS(E) in the vicinity of E = −E g /2 . Two discrete bound states, with the heights of their DOS(E) partially captured, are discernible within ... DOS(E) and T (E) of a simple Laplace Potential. (a) Schematic of a simple Laplace potential profile with a bias of 0.3 V across the GNR channel. (b) The resulting DOS(E) versus E with red arrow ... DOS(E) and T(E) of a rectangular barrier. (a) Schematic of a rectangular barrier of height 0.1 eV across the W14 GNR channel. (b) The DOS(E) with red arrow indicating region of reduced DOS(E...

Ngày tải lên: 21/06/2014, 17:20

... Spectrum of Almost Periodic Solution of Second-Order Neutral Delay Differential Equations with Piecewise Constant of Argument Li Wang and Chuanyi Zhang Department of Mathematics, Harbin Institute of ... Dosly The spectrum containment of almost periodic solution of second-order neutral delay differential equations with piecewise constant of argument EPCA, for short of the form xtpxt − 1   qx2t ... basic frequencies the base of spectrum of almost periodic differential equations ODE ˙x  ψx, t, x ∈ R n ,with those of its unique almost periodic solution. For scalar equation, n  1, Cartwright’s...

Ngày tải lên: 21/06/2014, 20:20

... a priori estimates of the assumed solutions u(t) and give a proof of Theorem 2.4. The solutions are in fact given as limits of smooth solutions of appropriate approx- imate equations and we may ... parabolic equations of m-Laplacian type with a nonlinear convection term. J. Diff. Equ. 162, 224–250 (2000) [10] Ohara, Y: L ∞ estimates of solution of some nonlinear degenerate parabolic equations. Nonlinear ... uniqueness of entropy solutions of parabolic problems with L 1 data. Nonlinear Anal. 28, 1943–1954 (1997) [12] Ladyzenskaya, OA, Solonnikov, VA, Uraltseva, NN: Linear and Quasilinear Equations of Parabolic...

Ngày tải lên: 21/06/2014, 20:20

Ngày tải lên: 21/06/2014, 20:20

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