We successfully synthesized a new organodisulfide poly 1,2-bis(thiophen-3-ylmethyl)disulfane by a facile preparation method. The types of the chemical groups of poly-3-thienylthiophene were characterized by Fourier transform infrared spectroscopy (FTIR). The electrochemical properties of S–S...

Effects of the averaging over disorder realizations (samples) on the phase behavior are analyzed in terms of the mean field approximation for the random field Ising model with infinite range interactions. It is found that the averaging is equivalent to a drastic modification in the statistics of...

The phase transition of a fluid adsorbed in a heterogeneous system is studied within a mean-field approach to the lattice gas model with quenched impurities. Despite the different origin of the heterogeneity (spatial variation of binding energy or fluid coordination numbers), the fluid can...

Using Monte Carlo simulations and finite-size scaling, we investigate the critical behavior of two-dimensional magnetic lattice gas at densities ρ=0.90, 0.95, 1.0. There is a ferromagnetic phase transition at each density. As expected, the critical temperature T <Subscript> c </Subscript> depends on system...</subscript>

Primary healthcare institutions (PHIs) in China have experienced a sizable decline in medical services in recent years. Despite the large regional disparities in China, there is a lack of evidence on the differential patterns of medical services offered by PHIs, especially from a spatial...