We study N coincident IIA NS5-branes at large N using supergravity. We show that the absorption cross section for gravitons in this background does not vanish at zero string coupling for energies larger than ms √ N (ms is the string scale). Using a holographic description of the intrinsic theory of the IIA NS5-branes, we find an expression for the two point function of the stress energy tensor,...

We develop the theory of duality for projective varieties defined over fields of arbitrary characteristic. A central concept in this work is that of reflexivity and our main tool is the rank of certain local Hessians which provides a numerical criterion for reflexivity. Many of our results are necessary and sufficient conditions for reflexivity. We also analyze the reflexivity of a general hype...

and Applied Analysis 3 where τ t ≤ t, σ t ≤ t, τ ′ t τ0 > 0, 0 ≤ p t ≤ p0 < ∞, and the authors obtained some oscillation criteria for 1.7 . However, there are few results regarding the oscillatory problem of 1.1 when τ t ≥ t and σ t ≥ t. Our aim in this paper is to establish some oscillation criteria for 1.1 under the case when τ t ≥ t and σ t ≥ t. The paper is organized as follows. In Section ...

It is shown that the temperature may be quantized in some spacetime due to the periodically topological structure of the Euclidean section. The quanta of the temperature is the Hawking-Unruh temperature. In the Euclidean quantum theory physical functions in the Lorentzian section of a complexified spacetime are assumed to be analytically continued from some functions in the Euclidean section [1...

thin films of binary bi 0 -teo and bi 0 -v 0 systems were prepared by the thermal co-evaporation technique in a vacuum at room temperature. the optical absorption edge of these systems are studied in the wavelength of 200-800 nm using a perkin-elmer uv/vis spectrophotometer. it is found that the value of n=3/2 in the davis-mott equation is best fitted for the fundamental absorption edge for the...

BACKGROUND Acute rejection may be suspected in heart transplant recipients in the setting of new onset of clinical symptoms or alterations in cardiac function. Immediate diagnosis may be obtained by performing a frozen section on endomyocardial biopsy (EMB) specimens. However, little is known about the indications for, and the diagnostic reliability of, this procedure. METHODS AND RESULTS EMB...

We present a new family of limited-memory variationally-derived variable metric (VM) line search methods with quadratic termination property for unconstrained minimization. Starting with x0 ∈ RN , VM line search methods (see [6], [3]) generate iterations xk+1 ∈ RN by the process xk+1 = xk + sk, sk = tkdk, where the direction vectors dk ∈ RN are descent, i.e. g k dk < 0, k ≥ 0, and the stepsizes...

Low maternal vitamin D levels have been associated with adverse pregnancy outcome. A recent study has suggested that low maternal vitamin D levels at the time of delivery are also associated with an almost fourfold increase in caesarean section risk. The aim of the present study was to investigate whether there is a difference in maternal serum 25-hydroxyvitamin D (25(OH)D) levels at 11-13 week...

This supplementary document contains a formal analysis of some of the extensions briefly discussed in Section 5 of the published version. Section A1 considers the game in which agents receive signals about the size of past attacks. Section A2 considers the game with observable shocks to the fundamentals. Section A3 considers the variant in which agents observe the shocks with a one-period lag. ...