stellar pulsation and oscillation

... concentrations s2 and s1; and (c) the rate constants k3 and k7 (see, Fig S3C–F) Switches, pulses and oscillations in Src signaling Fig Bifurcation diagram in the plane of the rate constant k1 and total ... Control of the period and amplitude of Src oscillations by the activities of the activatory phosphatase RPTP and inhibitory kinase Csk Dependence of the oscillation amplitude (A) and period (B) on ... changes in the stimulus, Src activators and inhibitors, and the Src abundance affect the basal low activity state of Src and bring 4110 about oscillations, pulses and toggle switches in Src activity...

Ngày tải lên: 18/02/2014, 11:20

... Conditions and types of free oscillations 60 Free oscillation as standing wave 62 Quarter-wave and half-wave 545 Terminal conditions 61 547 oscillation, 548 and their equa549 tions under which a standing ... short-circuit oscillation of line 33 Example Circuit 35 The even harmonics 36 Circuit 37 upon itself: Full-wave oscillation Wave shape and frequency of oscillation Time decrement of oscillation, and energy ... 626 Attenuation constant and frequency tween 10 line of line constants and Oscillations between line conductors, and ground t Duration 631 6.34 Duration and Power factor and frequency Danger frequency...

Ngày tải lên: 04/06/2014, 12:34

... if n > p, and p∗ 1.2 ∞ if n 1, 2, , p f2 ∃ sequence {ai } and {bi }, where , bi ∈ R, i 1, 2, , which satisfy > 0, bi < ∞, bi −∞ as i → ∞ And at the same time {ai }, {bi } satisfy and f x, ... functionals correspond to the weak solutions of problems In Li and Zhang et al , the authors study the existence and multiple solutions of p1 and p2 using the critical points theory for the semilinear ... theory, and some existence results of solutions have been generalized to this case in the work of Perera , Zhang et al , and Zhang-Li Most of these papers use the minimax arguments, and nontrivial...

Ngày tải lên: 21/06/2014, 07:20

... consequence of Lemmas 2.2 and 2.3, which provides the domain oscillation criteria for (1.1) and extends [2, Corollary 2.1] Theorem 3.3 Assume that for some c ∈ (a,b) and for some H ∈ Ᏼ, ϕ,ρ ∈ ... Δu + x ≥ 1, γ> , Θ0 (r) = (3.36) where N = 2, and p(x) = γ |x|2 , γ−1 r2 (3.37) 10 Riccati inequality and oscillation criteria Note that for α > and all l ≥ limsup r →∞ r r α −1 l (s − l)α Θ0 ... Kamenev-type oscillation theorems for second-order differential equations with damping, Journal of Mathematical Analysis and Applications 258 (2001), no 1, 244–257 [7] Z.-T Xu and H.-Y Xing, Oscillation...

Ngày tải lên: 22/06/2014, 22:20

... mappings and fixed point theorem, J Math Anal Appl 83 (1981), no 2, 566–569 G J Klir and B Yuan, Fuzzy Sets and Fuzzy Logic: Theory and Applications, Prentice Hall PTR, New Jersey, 1995 V L Koci´ and ... in Pure and Applied Mathematics, vol 155, Marcel Dekker, New York, 1992 D Benest and C Froeschle, Analysis and Modelling of Discrete Dynamical Systems, Advances in Discrete Mathematics and Applications, ... (3.47), and (3.51), for κ = 2, from statements (I) and (IV) of Lemma 3.5 and arguing as above, we take for γ = 0,1, , lim yr(2nµ −w1 −2γ)+τ = Lτ , µ→∞ lim zr(2nµ −w1 −s1 −2γ)+τ = mτ , µ→∞ (3.52) and...

Ngày tải lên: 23/06/2014, 00:20

... Waves and Oscillations This page intentionally left blank Waves and Oscillations (SECOND EDITION) R.N Chaudhuri Ph.D Former Professor and Head Department of Physics, ... principles, theorems and results It is hoped that the books in this series will serve two main purposes: (i) to explain and derive in a precise and concise manner the basic laws and formulae, and (ii) to ... applications and examples on Waves and Oscillations I have included many new problems and topics in the present edition It is hoped that the present edition will be more useful and enjoyable...

Ngày tải lên: 18/03/2016, 01:08

Ngày tải lên: 22/03/2014, 11:20

... simple oscillations (see Chaos and bursting) FREQUENCY AND AMPLITUDE BEHAVIOUR For a better understanding of biological oscillations, it is of interest to analyse the dependence of frequency and ... is supported by findings showing that IP3 oscillations are not required for Ca2+ oscillations [124] However, a coupling between oscillations in IP3 and oscillations in Cacyt seem to be of importance ... [21–25] and intracellular oscillations [26,27] The deterministic modelling of biological oscillations and rhythms is based on a well-established apparatus to describe self-sustained oscillations...

Ngày tải lên: 24/03/2014, 00:21

... detail, and stellar studies, which allow the study of how activity evolves and depends on the mass, age, and chemical composition of stars The result is an illuminating and comprehensive view of stellar ... parameters 2.3.3 Stellar brightness, color, and size This section is a synopsis of stellar terminology and two-dimensional classification For general introductions to stellar terminology, data, and classification, ... lesser extent, on gravity g and chemical abundances Note that stellar magnitudes and color indices are affected by interstellar extinction and reddening, respectively 34 Stellar structure The bolometric...

Ngày tải lên: 24/04/2014, 17:00

Ngày tải lên: 24/04/2014, 17:16

... on the local network oscillations and the local blood flow Immediately after TMS, the spontaneous local field oscillations show a great increase in the high frequency band (oscillations between ... dendritic shaft and soma Figure gic receptors in a CA1 pyramidal neuron Schematic representation of the glutamatergic and GABAerSchematic representation of the glutamatergic and GABAergic receptors ... spike-timing-dependent plasticity in the human cortex TMS and network oscillations The analysis of how TMS might influence circuit-level events, such as network oscillations, constitutes an emerging area of...

Ngày tải lên: 19/06/2014, 08:20

... change of the oscillation period (black dots in Figure 6a,b) Small values of gh and gL result in slower- and larger-amplitude oscillations because of hyperpolarization of the cell and activation ... a random Gaussian force that was band-limited to 200 Hz and had a standard deviation of σs = pN (b) Sensitivity as a function of the amplitude of the sinusoidal external force Values of b and ... fluctuations of the MET current are the main source of randomness in hair cells [18] and stem from the Brownian motion of the hair bundle and random clattering of MET channels (the so-called channel...

Ngày tải lên: 20/06/2014, 23:20

... k, d0 is some constant, ψ0 (ξ) is analytic and does not vanish in < |ξ | ≤ ∞, and ψ0 (∞) = 1, both u0 (ξ) and h0 (ξ) are entire functions, and h0 (ξ) and u0 (ξ) also satisfy the following: (a) ... constant, ψ(ζ) is analytic and does not vanish in < |ζ | ≤ ∞, and ψ(∞) = 1, both u(ζ) and h(ζ) are entire functions and have at most a pole at ζ = ∞, as Z.-X Chen and S.-A Gao 11 ζ → ∞, set W(ζ) ... 0, ,k − 2), and noting that G∗ (η) and g ∗ (η) satisfy (i), (ii), and (iii), respectively, j j A j (z) = B j (ζ) = B j (1/η) = G∗ (η) + g ∗ (1/η) In the previous argument, G j (t) and g j (t)...

Ngày tải lên: 22/06/2014, 18:20

... oscillatory if and only if the same is true for (B) Example We present here an example which illustrates oscillation and nonoscillation theorems proved in Sections and J Manojlovi´ and T Tanigawa ... differential operators have been investigated by Kusano and Lalli [2], Kusano and Wang [4], and Wang [9] Moreover, in a recent paper by Tanigawa [6] oscillation criteria for fourth-order functional ... Tanigawa, Oscillation and nonoscillation theorems for a class of fourth order quasilinear functional differential equations, Hiroshima Mathematical Journal 33 (2003), no 3, 297–316 , Oscillation...

Ngày tải lên: 22/06/2014, 21:20

... Equ., Szeged, 2000, p 12 12 Oscillation and nonoscillation [17] , Oscillation and nonoscillation in nonlinear implusive system with increasing energy, Discrete and Continuous Dynamical Systems ... oscillatory and nonoscillatory solutions to impulsive dynamic equations on time scales For oscillation and nonoscillation of impulsive differential equations, see, for instance, the monograph of Bainov and ... exists Tα > t0 such that α(t) > ∀t > Tα (3.46) 10 Oscillation and nonoscillation Hence, y(t) > for all t > Tα , and t = tk ,k = 1, For some k ∈ N and t > tα , we have + + + y(tk ) = Ik (y(tk ))...

Ngày tải lên: 22/06/2014, 22:20

... e1073–e1080 [10] Y Sahiner and I P Stavroulakis, Oscillations of first order delay dynamic equations, to appear in ¸ Dynamic Systems and Applications [11] B G Zhang and X Deng, Oscillation of delay ... monotone and deviating arguments τ(t) and δ(t) are variable functions of t Moreover, in case r(t) > (t/2)γ for sufficiently large t, Theorems 3.1 and 3.4 are stronger than Theorems 2.2 and 2.3 Example ... terms τ(t) = t/2 and δ(t) = t are not in the form of t − τ and t − δ for any constants τ,δ > 0, respectively Therefore, Theorems 2.2 and 2.3 cannot be applied to (3.18) On the other hand, if √ limsup...

Ngày tải lên: 22/06/2014, 22:20

... Agarwal, S R Grace, and D O’Regan, Oscillation Theory of Linear, Half-Linear, Superlinear and Sublinear Dynamic Equations, Kluwer Academic, Dordrecht, The Netherlands, 2002 ˇ a O Doˇ ly and P Reh´ k, ... nonoscillatory, and let xk be its recessive solution Denote by wk rk Φ Δxk / xk and wk rk Φ Δhk /hk the distinguished solutions of the Riccati equations 2.1 and 2.4 , p respectively, and put vk : ... this section, we suppose that Rk , Ck , and Gk are given by 1.9 and 2.9 , respectively, and that 1.7 is nonoscillatory Theorem 4.1 Let ck ≥ ck for large k and let hk > be the recessive solution...

Ngày tải lên: 22/06/2014, 22:20

... exist positive integers τ, σ, and σ such that τ > τ and σ − > σ − > σ If (3.16) with q and f replaced by q1 and f1 , respectively, and (3.34) with q and f replaced by q2 and f2 , respectively, are ... {gi (n)}, and fi (x), i = 1,2 be as in (2.56), let L3 be defined as in (1.1;δ), and {ai (n)}, αi , i = 1,2 are as in (i) and (iv), g1 (n) = n − τ and g2 (n) = n + σ, n ≥ n0 ∈ N, where τ and σ are ... and/ or f2 Now, we combine Theorems 2.1 and 2.8 and obtain the following interesting result Theorem 2.15 Let the above hypotheses hold for (2.56), g1 (n) < n and g2 (n) > n + for n ≥ n0 ∈ N and...

Ngày tải lên: 23/06/2014, 00:20

... 1982–present, near 20 years periodicity band and near 50 years periodicity band The two most significant bands are near the 20 year band and near the 50 year band, which persist over the whole time ... temperature parameters and local precipitation also have a strong and significant 11n year periodic band and periodicity For example, PDO is a 20–26 year periodic band (≈11 y × 2) and shows a 52 year ... band (A) for the SSN (dashed curve) and STD (solid curve) (B) for STD (solid curve) and the PDO (dashed curve) (C) for STD (solid curve) and the GSATA (dashed curve) Corresponding the solid and...

Ngày tải lên: 07/08/2014, 16:21

... baseline and following bronchoconstriction from both techniques using a single cohort of mice and a single system More specifically, negative pressure-driven forced expiratory (NPFE) and forced oscillation ... curves from ovalbumin-sensitized and sham-challenged mice (A) and ovalbumin-sensitized and challenged mice (B) at varying negative pressures Values are mean ± standard deviation from groups of ... ovalbumin-sensitized and challenged mice (C; Dex/OVA) at baseline (BL) and following aerosolized saline (Sal) or increasing methacholine concentrations (MCh 31.25-250 mg/ml) Figure 7D represents the mean and standard...

Ngày tải lên: 12/08/2014, 11:22