By using the solution describing a black hole embedded in the FLRW universe, we obtain the evolving equation of the black hole mass expressed in terms of the cosmological parameters. The evolving equation indicates that in the phantom dark energy universe the black hole mass becomes zero before the Big Rip is reached.

We study the efficiency at maximum power, η*, of engines performing finite-time Carnot cycles between a hot and a cold reservoir at temperatures Th and Tc, respectively. For engines reaching Carnot efficiency ηC=1-Tc/Th in the reversible limit (long cycle time, zero dissipation), we find in the limit of low dissipation that η* is bounded from above by ηC/(2-ηC) and from below by ηC/2. These bou...

We calculate the quasiparticle contribution to the zero temperature Hall conduc-tance of two-dimensional extreme type-II superconductors in a high magnetic field, using the Landau basis. As one enters the superconducting phase the Hall conduc-tance is renormalized to smaller values, with respect to the normal state result, until a quantum level-crossing transition is reached. At high values of ...

SCHWARTZ, MANUEL, HERBERT K. KASHIWA, AHREN JACOBSON, AND WARREN S. REHM. Concentration and locali<ation of calcium in frog gastric mucosa. Am. J. Physiol. 2 12(2) : 241246. I g67.-Removal of Ca $3from the solutions bathing the frog gastric mucosa results in an initial increase in resistance (first phase) and a decrease in the H+ secretory rate of about 4oy0. These effects are followed by a pro...

We present numerical results on the static quark–anti-quark grand canonical potential in full QCD at non-vanishing temperature (T) and quark chemical potential (µ). Non-zero µ-s are reached by means of multi-parameter reweighting. The dynamical staggered simulations were carried out for n f = 2 + 1 flavors with physical quark masses on 4 × 12 3 lattices.

Nash equilibrium is a popular solution concept for solving imperfect-information games in practice. However, it has a major drawback: it does not preclude suboptimal play in branches of the game tree that are not reached in equilibrium. Equilibrium refinements can mend this issue, but have experienced little practical adoption. This is largely due to a lack of scalable algorithms. Sparse iterat...

dynamic game theory is applied to analyze the timber market in northern iran as a duopsony. the nash equilibrium and the dynamic properties of the system based on marginal adjustments are determined. when timber is sold, the different mills use mixed strategies to give sealed bids. it is found that the decision probability combination of the different mills follow a special form of attractor an...

BACKGROUND AND OBJECTIVES Decrease in body temperature is common during general and regional anesthesia. Forced-air warming intraoperative during cesarean section under spinal anesthesia seems not able to prevent it. The hypothesis considers that active warming before the intraoperative period avoids temperature loss during cesarean. METHODS Forty healthy pregnant patients undergoing elective...

A synthetic wastewater with high concentration of sulfate and COD was treated in anaerobic baffled reactor (ABR) coupled with an activated sludge. The work was accomplished in two phases. In the first phase, the concentration of sulfate was kept constant at 500mg/l, but COD concentration was increased from (3000mg/l to 6000mg/l), consequently, COD and sulfate removal in ABR reached to 80% and 9...