Universal absorption of two-dimensional systems

Non-Universal Critical Behaviour of Two-Dimensional Ising Systems

Two conditions are derived for Ising models to show non-universal critical behaviour, namely conditions concerning 1) logarithmic singularity of the specific heat and 2) degeneracy of the ground state. These conditions are satisfied with the eight-vertex model, the Ashkin-Teller model, some Ising models with shortor long-range interactions and even Ising systems without the translational or the...

Smoothed universal correlations in the two - dimensional

Self-similar solutions‎ ‎of the Riemann problem for two-dimensional systems of conservation‎ ‎laws

In this paper, a new approach is applied to study the self-similar solutions of 2×2 systems of nonlinear hyperbolic conservation laws. A notion of characteristic directions is introduced and then used to construct local and smooth solutions of the associated Riemann problem

Universal modeling of weak antilocalization corrections in quasi-two-dimensional electron systems using predetermined return orbitals.

We have developed a method to calculate the weak localization and antilocalization corrections based on the real-space simulation, where we provide 147 885 predetermined return orbitals of quasi-two-dimensional electrons with up to 5000 scattering events that are repeatedly used. Our model subsumes that of Golub [L. E. Golub, Phys. Rev. B 71, 235310 (2005)PRBMDO1098-012110.1103/PhysRevB.71.2353...

Assessment of research systems in universal health coverage-related organizations

    Background: Universal health coverage (UHC) is the desired goal of achieving universal access to health services without having to endure pain and financial difficulties. Multiple factors can help steer countries toward UHC. One of the most important factors is the production of valid quality evidence that can be achieved through research. The present study aimed at outlining...